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Author SHA1 Message Date
9cd02c02db Add Vitastor support 2021-12-08 20:32:53 +00:00
122 changed files with 12793 additions and 9437 deletions

7
.gitignore vendored
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@@ -1,7 +0,0 @@
/*.build
/*.buildinfo
/*.changes
/*.deb
/*.dsc
/*.tar*
/pve-qemu-kvm-*.*/

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@@ -1,90 +1,57 @@
include /usr/share/dpkg/default.mk
include /usr/share/dpkg/pkg-info.mk
include /usr/share/dpkg/architecture.mk
PACKAGE = pve-qemu-kvm
SRCDIR := qemu
BUILDDIR ?= $(PACKAGE)-$(DEB_VERSION_UPSTREAM)
ORIG_SRC_TAR=$(PACKAGE)_$(DEB_VERSION_UPSTREAM).orig.tar.gz
BUILDDIR ?= ${PACKAGE}-${DEB_VERSION_UPSTREAM}
GITVERSION := $(shell git rev-parse HEAD)
DSC=$(PACKAGE)_$(DEB_VERSION_UPSTREAM_REVISION).dsc
DEB = $(PACKAGE)_$(DEB_VERSION_UPSTREAM_REVISION)_$(DEB_BUILD_ARCH).deb
DEB_DBG = $(PACKAGE)-dbgsym_$(DEB_VERSION_UPSTREAM_REVISION)_$(DEB_BUILD_ARCH).deb
DEB = ${PACKAGE}_${DEB_VERSION_UPSTREAM_REVISION}_${DEB_BUILD_ARCH}.deb
DEB_DBG = ${PACKAGE}-dbg_${DEB_VERSION_UPSTREAM_REVISION}_${DEB_BUILD_ARCH}.deb
DEBS = $(DEB) $(DEB_DBG)
all: $(DEBS)
.PHONY: submodule
submodule:
ifeq ($(shell test -f "$(SRCDIR)/configure" && echo 1 || echo 0), 0)
git submodule update --init --recursive
cd $(SRCDIR); meson subprojects download
endif
test -f "${SRCDIR}/configure" || git submodule update --init --recursive
PC_BIOS_FW_PURGE_LIST_IN = \
hppa-firmware.img \
hppa-firmware64.img \
openbios-ppc \
openbios-sparc32 \
openbios-sparc64 \
palcode-clipper \
s390-ccw.img \
s390-netboot.img \
u-boot.e500 \
.*[a-zA-Z0-9]\.dtb \
.*[a-zA-Z0-9]\.dts \
qemu_vga.ndrv \
slof.bin \
opensbi-riscv.*-generic-fw_dynamic.bin \
BLOB_PURGE_SED_CMDS = $(foreach FILE,$(PC_BIOS_FW_PURGE_LIST_IN),-e "/$(FILE)/d")
BLOB_PURGE_FILTER = $(foreach FILE,$(PC_BIOS_FW_PURGE_LIST_IN),-e "$(FILE)")
$(BUILDDIR): submodule
# check if qemu/ was used for a build
# if so, please run 'make distclean' in the submodule and try again
test ! -f $(SRCDIR)/build/config.status
rm -rf $@.tmp $@
cp -a $(SRCDIR) $@.tmp
cp -a debian $@.tmp/debian
rm -rf $@.tmp/roms/edk2 # packaged separately
find $@.tmp/pc-bios -type f | grep $(BLOB_PURGE_FILTER) | xargs rm -f
sed -i $(BLOB_PURGE_SED_CMDS) $@.tmp/pc-bios/meson.build
echo "git clone git://git.proxmox.com/git/pve-qemu.git\\ngit checkout $(GITVERSION)" > $@.tmp/debian/SOURCE
mv $@.tmp $@
$(BUILDDIR): keycodemapdb | submodule
rm -rf $(BUILDDIR)
cp -a $(SRCDIR) $(BUILDDIR)
cp -a debian $(BUILDDIR)/debian
rm -rf $(BUILDDIR)/ui/keycodemapdb
cp -a keycodemapdb $(BUILDDIR)/ui/
echo "git clone git://git.proxmox.com/git/pve-qemu.git\\ngit checkout $(GITVERSION)" > $(BUILDDIR)/debian/SOURCE
.PHONY: deb kvm
deb kvm: $(DEBS)
$(DEB_DBG): $(DEB)
$(DEB): $(BUILDDIR)
cd $(BUILDDIR); dpkg-buildpackage -b -us -uc -j32
cd $(BUILDDIR); dpkg-buildpackage -b -us -uc -j
lintian $(DEBS)
sbuild: $(DSC)
sbuild $(DSC)
$(ORIG_SRC_TAR): $(BUILDDIR)
tar czf $(ORIG_SRC_TAR) --exclude="$(BUILDDIR)/debian" $(BUILDDIR)
.PHONY: dsc
dsc:
rm -rf *.dsc $(BUILDDIR)
$(MAKE) $(DSC)
lintian $(DSC)
$(DSC): $(ORIG_SRC_TAR) $(BUILDDIR)
cd $(BUILDDIR); dpkg-buildpackage -S -us -uc -d
.PHONY: update
update:
cd $(SRCDIR) && git submodule deinit ui/keycodemapdb || true
rm -rf $(SRCDIR)/ui/keycodemapdb
mkdir $(SRCDIR)/ui/keycodemapdb
cd $(SRCDIR) && git submodule update --init ui/keycodemapdb
rm -rf keycodemapdb
mkdir keycodemapdb
cp -R $(SRCDIR)/ui/keycodemapdb/* keycodemapdb/
git add keycodemapdb
.PHONY: upload
upload: UPLOAD_DIST ?= $(DEB_DISTRIBUTION)
upload: $(DEBS)
tar cf - $(DEBS) | ssh repoman@repo.proxmox.com upload --product pve --dist $(UPLOAD_DIST)
tar cf - ${DEBS} | ssh repoman@repo.proxmox.com upload --product pve --dist buster
.PHONY: distclean clean
distclean: clean
clean:
rm -rf $(PACKAGE)-[0-9]*/ $(PACKAGE)*.tar* *.deb *.dsc *.build *.buildinfo *.changes
rm -rf $(BUILDDIR) $(PACKAGE)*.deb *.buildinfo *.changes
.PHONY: dinstall
dinstall: $(DEBS)

548
debian/changelog vendored
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@@ -1,552 +1,8 @@
pve-qemu-kvm (9.0.0-1+vitastor1) bookworm; urgency=medium
pve-qemu-kvm (5.1.0-8+vitastor1) buster; urgency=medium
* Add Vitastor support
* Changes from pve master branch
-- Vitaliy Filippov <vitalif@yourcmc.ru> Mon, 15 May 2024 02:13:11 +0300
pve-qemu-kvm (9.0.0-1) bookworm; urgency=medium
* update submodule and patches to QEMU 9.0.0
-- Proxmox Support Team <support@proxmox.com> Mon, 29 Apr 2024 10:51:37 +0200
pve-qemu-kvm (8.2.2-1) bookworm; urgency=medium
* update submodule and patches to QEMU 8.2.2
-- Proxmox Support Team <support@proxmox.com> Sat, 27 Apr 2024 12:44:30 +0200
pve-qemu-kvm (8.1.5-5) bookworm; urgency=medium
* implement support for backup fleecing
-- Proxmox Support Team <support@proxmox.com> Thu, 11 Apr 2024 17:46:48 +0200
pve-qemu-kvm (8.1.5-4) bookworm; urgency=medium
* fix live-import for certain kinds of VMDK images that rely on padding
* backup: avoid bubbling up first error if it's an ECANCELED one, as those
are often a result of cancling the job due to running into an actual
issue.
* backup: factor out & clean up gathering device info into helper
-- Proxmox Support Team <support@proxmox.com> Tue, 12 Mar 2024 14:08:40 +0100
pve-qemu-kvm (8.1.5-3) bookworm; urgency=medium
* backport fix for potential deadlock during QMP stop command if the VM has
disks attached through VirtIO-Block and IO-Thread enabled
* fix #4507: add patch to automatically increase NOFILE soft limit
-- Proxmox Support Team <support@proxmox.com> Wed, 21 Feb 2024 20:11:23 +0100
pve-qemu-kvm (8.1.5-2) bookworm; urgency=medium
* work around for a situation where guest IO might get stuck, if the VM is
configure with iothread and VirtIO block/SCSI
-- Proxmox Support Team <support@proxmox.com> Fri, 02 Feb 2024 19:41:27 +0100
pve-qemu-kvm (8.1.5-1) bookworm; urgency=medium
* update to 8.1.5 stable release, including more relevant fixes like:
- virtio-net: correctly copy vnet header when flushing TX
- hw/pflash: implement update buffer for block writes
- Fixes to i386 emulation and ARM emulation.
-- Proxmox Support Team <support@proxmox.com> Fri, 02 Feb 2024 19:08:13 +0100
pve-qemu-kvm (8.1.2-6) bookworm; urgency=medium
* revert attempted fix to avoid rare issue with stuck guest IO when using
iothread, because it caused a much more common issue with iothreads
consuming too much CPU
-- Proxmox Support Team <support@proxmox.com> Fri, 15 Dec 2023 14:22:06 +0100
pve-qemu-kvm (8.1.2-5) bookworm; urgency=medium
* backport workaround for stuck guest IO with iothread and VirtIO block/SCSI
in some rare edge cases
* backport fix for potential deadlock when issuing the "resize" QMP command
for a disk that is using iothread
-- Proxmox Support Team <support@proxmox.com> Mon, 11 Dec 2023 16:58:27 +0100
pve-qemu-kvm (8.1.2-4) bookworm; urgency=medium
* fix vnc clipboard in the host to guest direction
-- Proxmox Support Team <support@proxmox.com> Wed, 22 Nov 2023 14:28:21 +0100
pve-qemu-kvm (8.1.2-3) bookworm; urgency=medium
* fix #5054: backport fix for software reset with SATA, avoiding breakage
with, e.g., some FreeBSD VMs
-- Proxmox Support Team <support@proxmox.com> Mon, 20 Nov 2023 10:24:50 +0100
pve-qemu-kvm (8.1.2-2) bookworm; urgency=medium
* revert "x86: acpi: workaround Windows not handling name references in
Package properly" as that seems to have broken networking (and possibly
other things) one some localized variants of Windows (e.g., the German
versions).
-- Proxmox Support Team <support@proxmox.com> Fri, 17 Nov 2023 11:55:23 +0100
pve-qemu-kvm (8.1.2-1) bookworm; urgency=medium
* update submodule and patches to QEMU 8.1.2
* use QEMU's keycode-map-db again instead of our static copy from QEMU 6.0
* disable graph locking, newly introduced in the 8.1 release, as it has
still various deadlock issuess, e.g., during canceling backup jobs.
-- Proxmox Support Team <support@proxmox.com> Tue, 24 Oct 2023 13:42:45 +0200
pve-qemu-kvm (8.0.2-7) bookworm; urgency=medium
* fix #2874: SATA: avoid unsolicited write to sector 0 during reset
-- Proxmox Support Team <support@proxmox.com> Wed, 04 Oct 2023 08:33:35 +0200
pve-qemu-kvm (8.0.2-6) bookworm; urgency=medium
* fix #1534: vma: add extract-filter for disk images allowing users to pass
a comma separated list of the disks they want to extract from an archive.
* backup: create jobs in a drained section to avoid subtle bugs where
something interferes with the block-copy-state bitmap on initialization
* backup: drop experimental, and since a while also fully broken, directory
backup format (BACKUP_FORMAT_DIR). This format was never exposed via the
Proxmox VE API, but only available via QMP, as its broken since QEMU 8 and
we got zero reports about that, it's safe to assume that there are no
public users, so just remove it completely.
-- Proxmox Support Team <support@proxmox.com> Wed, 06 Sep 2023 17:03:59 +0200
pve-qemu-kvm (8.0.2-5) bookworm; urgency=medium
* improve memory footprint after backup by not keeping as much memory
resident.
* fix file descriptor leak for vhost (used by default by vNICs).
-- Proxmox Support Team <support@proxmox.com> Wed, 16 Aug 2023 11:52:24 +0200
pve-qemu-kvm (8.0.2-4) bookworm; urgency=medium
* fix resume for snapshot and hibernate in combination with iothread and
dirty bitmap
-- Proxmox Support Team <support@proxmox.com> Fri, 28 Jul 2023 12:58:22 +0200
pve-qemu-kvm (8.0.2-3) bookworm; urgency=medium
* fix regression in QEMU 8.0 for drive mirror with bitmap
-- Proxmox Support Team <support@proxmox.com> Thu, 15 Jun 2023 13:57:46 +0200
pve-qemu-kvm (8.0.2-2) bookworm; urgency=medium
* drop custom get_link_status QMP command, was never really used.
* drop custom & deprecated drive snapshot QMP commands, we use a better
alternative since a while.
-- Proxmox Support Team <support@proxmox.com> Fri, 09 Jun 2023 07:57:56 +0200
pve-qemu-kvm (8.0.2-1) bookworm; urgency=medium
* update to QEMU stable release 8.0.2
* update patches for avoiding issues with DMA reentrancy to current,
slightly optimized version.
-- Proxmox Support Team <support@proxmox.com> Tue, 06 Jun 2023 16:34:50 +0200
pve-qemu-kvm (8.0.0-1) bookworm; urgency=medium
* update to QEMU stable release 8.0.0
* re-build for Proxmox VE 8 / Debian 12 Bookworm
* adapt to the local virtiofsd C variant being dropped, it has been
rewritten in Rust and is now hosted in a separate source repository.
-- Proxmox Support Team <support@proxmox.com> Mon, 22 May 2023 13:45:49 +0200
pve-qemu-kvm (7.2.0-8) bullseye; urgency=medium
* backport fix for ACPI CPU hotplug issue with TCG
* cherry-pick TCG-related stable fixes for 7.2 for users that turned off KVM
HW acceleration
-- Proxmox Support Team <support@proxmox.com> Fri, 17 Mar 2023 15:47:08 +0100
pve-qemu-kvm (7.2.0-7) bullseye; urgency=medium
* improve fix for potential deadlock with trim for IDE/SATA and draining
* backport stable fixes:
- hw/nvme: fix missing endian conversions for doorbell buffers
- hw/smbios: fix field corruption in type 4 table
- virtio-rng-pci: fix transitional migration compat for vectors
- hw/timer/hpet: Fix expiration time overflow
- vhost/vdpa: stop all svq on device deletion
- vhost: avoid a potential use of an uninitialized variable in the call to
vhost_svq_poll
- chardev/char-socket: set s->listener = NULL in char_socket_finalize to
fix a potential crash after live-migration
- intel-iommu: fail MAP notifier without caching mode
- intel-iommu: fail DEVIOTLB_UNMAP without dt mode
* fix a regression for when the LSI SCSI controller is used
-- Proxmox Support Team <support@proxmox.com> Mon, 13 Mar 2023 17:42:49 +0100
pve-qemu-kvm (7.2.0-6) bullseye; urgency=medium
* fix 7.2 regression for Linux boot failures with megasas SCSI
* fix 7.0 regression for a potential deadlock with trim for IDE/SATA and
draining
-- Proxmox Support Team <support@proxmox.com> Wed, 08 Mar 2023 14:32:17 +0100
pve-qemu-kvm (7.2.0-5) bullseye; urgency=medium
* fix #4476: savevm-async: avoid looping without progress
* savevm-async: decrease the boundary for free space for (memory) state left
on target from 30 MiB to 100 MiB, improving the heuristic for when to
enter the final "pause and sync" stage.
* QMP backup: use correct error number when getting blockdrive length fails
* backport fix for some DMA reentrancy issues, better protecting against
malicious guests
* backport fix for iSCSI double free issue leading to crashes
-- Proxmox Support Team <support@proxmox.com> Tue, 21 Feb 2023 13:49:43 +0100
pve-qemu-kvm (7.2.0-4) bullseye; urgency=medium
* backport fix for a 7.2 regression when using VirtIO disk with
detect-zeroes=unmap
-- Proxmox Support Team <support@proxmox.com> Fri, 27 Jan 2023 09:37:49 +0100
pve-qemu-kvm (7.2.0-3) bullseye; urgency=medium
* add fix for live-migration with virtio-rng devices, which regressed in
QEMU 7.2.0.
-- Proxmox Support Team <support@proxmox.com> Thu, 12 Jan 2023 13:13:14 +0100
pve-qemu-kvm (7.2.0-2) bullseye; urgency=medium
* enable slirp again for now, as in qemu-server, user networking is
supported (via CLI/API) when no bridge is set on a virtual NIC
* cherry-pick stable fixes for 7.2. Two for virtio-mem and one for vIOMMU.
Both features are not yet exposed in PVE's qemu-server, but there's work
going on to change that.
-- Proxmox Support Team <support@proxmox.com> Tue, 10 Jan 2023 15:47:48 +0100
pve-qemu-kvm (7.2.0-1) bullseye; urgency=medium
* update to QEMU stable release 7.2.0
* drop 'slirp' networking
-- Proxmox Support Team <support@proxmox.com> Fri, 16 Dec 2022 13:18:21 +0100
pve-qemu-kvm (7.1.0-4) bullseye; urgency=medium
* cherry-pick "block/block-backend: blk_set_enable_write_cache is IO_CODE"
-- Proxmox Support Team <support@proxmox.com> Tue, 22 Nov 2022 09:21:06 +0100
pve-qemu-kvm (7.1.0-3) bullseye; urgency=medium
* init: daemonize: defuse PID file resolve error to a warning at max, fixing
some usecases that regressed with 7.1, like tracking start up in our
file-restore VM.
-- Proxmox Support Team <support@proxmox.com> Fri, 28 Oct 2022 10:27:49 +0200
pve-qemu-kvm (7.1.0-2) bullseye; urgency=medium
* fix an issue with error handling in async backup code
-- Proxmox Support Team <support@proxmox.com> Tue, 18 Oct 2022 15:33:44 +0200
pve-qemu-kvm (7.1.0-1) bullseye; urgency=medium
* update to QEMU stable release 7.1.0
* add fix for io_uring_register_ring_fd from upstream
-- Proxmox Support Team <support@proxmox.com> Fri, 14 Oct 2022 14:54:09 +0200
pve-qemu-kvm (7.0.0-4) bullseye; urgency=medium
* add revision to version output
* PVE Backup: allow passing max-workers performance setting
-- Proxmox Support Team <support@proxmox.com> Mon, 10 Oct 2022 11:55:37 +0200
pve-qemu-kvm (7.0.0-3) bullseye; urgency=medium
* savevm-async: avoid segfault when aborting snapshot creation task
* savevm-async: set SAVE_STATE_DONE when closing state file was successful
allowing one to start a new snapshot task after aborting one.
-- Proxmox Support Team <support@proxmox.com> Tue, 30 Aug 2022 12:54:03 +0200
pve-qemu-kvm (7.0.0-2) bullseye; urgency=medium
* backport "io_uring: fix short read slow path"
* backport "e1000: set RX descriptor status in a separate operation"
-- Proxmox Support Team <support@proxmox.com> Wed, 20 Jul 2022 09:17:07 +0200
pve-qemu-kvm (7.0.0-1) bullseye; urgency=medium
* update to QEMU stable release 7.0.0
-- Proxmox Support Team <support@proxmox.com> Thu, 30 Jun 2022 11:07:37 +0200
pve-qemu-kvm (6.2.0-11) bullseye; urgency=medium
* add 'namespace' to BlockdevOptionsPbs for live-restore support
* vma: create: support 64KiB-unaligned input images like to improve backing
up some VM templates
* block: alloc-track: avoid unlikely, but possible premature break
-- Proxmox Support Team <support@proxmox.com> Wed, 22 Jun 2022 15:54:54 +0200
pve-qemu-kvm (6.2.0-10) bullseye; urgency=medium
* fix #4101: fix backup cancellation bug with iothreads
-- Proxmox Support Team <support@proxmox.com> Thu, 9 Jun 2022 16:35:51 +0200
pve-qemu-kvm (6.2.0-9) bullseye; urgency=medium
* fix possible race conditions during cancellation of a PBS backup
-- Proxmox Support Team <support@proxmox.com> Wed, 08 Jun 2022 14:03:22 +0200
pve-qemu-kvm (6.2.0-8) bullseye; urgency=medium
* revert "block/rbd: implement bdrv_co_block_status" to work around
performance regression when backing up large RBD disk
-- Proxmox Support Team <support@proxmox.com> Thu, 19 May 2022 09:24:45 +0200
pve-qemu-kvm (6.2.0-7) bullseye; urgency=medium
* Proxmox Backup Server namespace support
-- Proxmox Support Team <support@proxmox.com> Thu, 12 May 2022 16:05:56 +0200
pve-qemu-kvm (6.2.0-6) bullseye; urgency=medium
* block/gluster: correctly set max_pdiscard which is int64_t to avoid
triggering assertion
* ui/vnc.c: Fixed a deadlock bug
* display/qxl-render: fix race condition in qxl_cursor (CVE-2021-4207) and
integer overflow in cursor_alloc (CVE-2021-4206)
-- Proxmox Support Team <support@proxmox.com> Wed, 11 May 2022 10:42:53 +0200
pve-qemu-kvm (6.2.0-5) bullseye; urgency=medium
* vma: allow partial restore by skipping some disk
-- Proxmox Support Team <support@proxmox.com> Mon, 25 Apr 2022 10:13:46 +0200
pve-qemu-kvm (6.2.0-4) bullseye; urgency=medium
* d/control: add libgbm to build dependencies
* d/control: add suggest dependency-hint for libgl1
* various stable backports:
+ virtio-net: fix map leaking on error during receive
+ memory: Fix incorrect calls of log_global_start/stop
+ acpi: fix OEM ID/OEM Table ID padding
+ vhost-vsock: detach the virqueue element in case of error
+ vhost-user: remove VirtQ notifier restore
+ vhost-user: fix VirtQ notifier cleanup
+ virtio: fix the condition for iommu_platform not supported
-- Proxmox Support Team <support@proxmox.com> Fri, 22 Apr 2022 11:52:30 +0200
pve-qemu-kvm (6.2.0-3) bullseye; urgency=medium
* cherry-pick fix for some manually added ACPI table SLIC entries via the
custom args flag.
-- Proxmox Support Team <support@proxmox.com> Fri, 15 Apr 2022 09:09:37 +0200
pve-qemu-kvm (6.2.0-2) bullseye; urgency=medium
* compile in virgl support
* enable zstd support
* drop sdl dependency (it was disabled at compile time already)
* recommend 'numactl'
* fix an issue with multi-disk backups where chunks would be written
multiple times
-- Proxmox Support Team <support@proxmox.com> Thu, 03 Mar 2022 12:03:44 +0100
pve-qemu-kvm (6.2.0-1) bullseye; urgency=medium
* update to QEMU stable release 6.2.0
-- Proxmox Support Team <support@proxmox.com> Thu, 17 Feb 2022 06:23:14 +0100
pve-qemu-kvm (6.1.1-2) bullseye; urgency=medium
* vma: create: register all streams before entering coroutines to avoid that
an early stream starts to write already before all got registered.
-- Proxmox Support Team <support@proxmox.com> Mon, 14 Feb 2022 15:53:15 +0100
pve-qemu-kvm (6.1.1-1) bullseye; urgency=medium
* update to 6.1.1 stable release
-- Proxmox Support Team <support@proxmox.com> Thu, 13 Jan 2022 10:57:43 +0100
pve-qemu-kvm (6.1.0-3) bullseye; urgency=medium
* fix #3738: cherry-pick "block: introduce max_hw_iov for use in scsi-
generic
-- Proxmox Support Team <support@proxmox.com> Wed, 01 Dec 2021 15:35:43 +0100
pve-qemu-kvm (6.1.0-2) bullseye; urgency=medium
* avoid a possible segmentation fault during block (disk) mirror
-- Proxmox Support Team <support@proxmox.com> Tue, 16 Nov 2021 09:38:10 +0100
pve-qemu-kvm (6.1.0-1) bullseye; urgency=medium
* update to QEMU stable release 6.1.0
-- Proxmox Support Team <support@proxmox.com> Mon, 11 Oct 2021 15:15:19 +0200
pve-qemu-kvm (6.0.0-4) bullseye; urgency=medium
* drop the ancient workaround that force disabled SMM due to observing VM
hangs on old kernel versions.
* monitor/qmp: fix race with clients disconnecting early resulting in other
clients receiving a message with the (now wrong) ID of the former
-- Proxmox Support Team <support@proxmox.com> Mon, 06 Sep 2021 07:30:00 +0200
pve-qemu-kvm (6.0.0-3) bullseye; urgency=medium
* io_uring: resubmit when result is -EAGAIN
-- Proxmox Support Team <support@proxmox.com> Tue, 3 Aug 2021 15:01:31 +0200
pve-qemu-kvm (6.0.0-2) bullseye; urgency=medium
* enable io-uring support in QEMU builds
-- Proxmox Support Team <support@proxmox.com> Wed, 23 Jun 2021 11:03:54 +0200
pve-qemu-kvm (6.0.0-1) bullseye; urgency=medium
* update to QEMU stable release 6.0.0
-- Proxmox Support Team <support@proxmox.com> Fri, 28 May 2021 11:30:50 +0200
pve-qemu-kvm (5.2.0-11) bullseye; urgency=medium
* re-build for Proxmox VE 7 / Debian Bullseye
-- Proxmox Support Team <support@proxmox.com> Thu, 13 May 2021 14:03:00 +0200
pve-qemu-kvm (5.2.0-6) pve; urgency=medium
* improve the alloc-track and Proxmox Backup Server special block driver when
used with IO-threads for the new live-restore feature
-- Proxmox Support Team <support@proxmox.com> Thu, 15 Apr 2021 16:29:48 +0200
pve-qemu-kvm (5.2.0-5) pve; urgency=medium
* cherry-pick fixes for a possible deadlock when resizing a disk while using
IO-threads
-- Proxmox Support Team <support@proxmox.com> Tue, 30 Mar 2021 18:18:18 +0200
pve-qemu-kvm (5.2.0-4) pve; urgency=medium
* monitor/qmp: fix race on CHR_EVENT_CLOSED without OOB
* improve saving and loading dirty bitmaps in live-snapshots
-- Proxmox Support Team <support@proxmox.com> Tue, 23 Mar 2021 15:41:26 +0100
pve-qemu-kvm (5.2.0-3) pve; urgency=medium
* backport "i386/acpi: restore device paths for pre-5.1 vms" patch
* ship list of 'i440fx' and 'q35' machine versions this QEMU version supports
-- Proxmox Support Team <support@proxmox.com> Fri, 05 Mar 2021 16:23:06 +0100
pve-qemu-kvm (5.2.0-2) pve; urgency=medium
* Proxmox Backup restore: ensure all caches are flushed for userspace
attached storages (for example, Ceph when librbd and not KRBD is used)
* ship VirtIOFSd daemon
-- Proxmox Support Team <support@proxmox.com> Wed, 24 Feb 2021 18:25:14 +0100
pve-qemu-kvm (5.2.0-1) pve; urgency=medium
* update to QEMU stable release 5.2.0
* fix #3084: fall back to open-iscsi initiatorname
* fix snapshot abort and improve performance in some edge cases
* add basis for Proxmox Backup Server master key support
-- Proxmox Support Team <support@proxmox.com> Fri, 12 Feb 2021 12:09:59 +0100
-- Vitaliy Filippov <vitalif@yourcmc.ru> Sun, 05 Dec 2021 13:46:51 +0300
pve-qemu-kvm (5.1.0-8) pve; urgency=medium

1
debian/compat vendored Normal file
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@@ -0,0 +1 @@
10

40
debian/control vendored
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@@ -2,43 +2,37 @@ Source: pve-qemu-kvm
Section: admin
Priority: optional
Maintainer: Proxmox Support Team <support@proxmox.com>
Build-Depends: debhelper-compat (= 13),
Build-Depends: autotools-dev,
check,
debhelper (>= 9),
libacl1-dev,
libaio-dev,
libattr1-dev,
libcap-ng-dev,
libcurl4-gnutls-dev,
libepoxy-dev,
libfdt-dev,
libgbm-dev,
libglusterfs-dev (>= 5.2-2),
libgnutls28-dev,
libiscsi-dev (>= 1.12.0),
libjemalloc-dev,
libjpeg-dev,
libjson-perl,
libnuma-dev,
libpci-dev,
libpixman-1-dev,
libproxmox-backup-qemu0-dev (>= 1.3.0),
libproxmox-backup-qemu0-dev (>= 1.0.2-1),
librbd-dev (>= 0.48),
libsdl1.2-dev,
libseccomp-dev,
libslirp-dev,
libspice-protocol-dev (>= 0.12.14~),
libspice-server-dev (>= 0.14.0~),
libsystemd-dev,
liburing-dev,
libusb-1.0-0-dev (>= 1.0.17),
libusb-1.0-0-dev (>= 1.0.17-1),
libusbredirparser-dev (>= 0.6-2),
libvirglrenderer-dev,
libzstd-dev,
meson,
python3-minimal,
python3-sphinx,
python3-sphinx-rtd-theme,
python3-venv,
quilt,
texi2html,
texinfo,
uuid-dev,
xfslibs-dev,
Standards-Version: 3.7.2
@@ -47,6 +41,7 @@ Package: pve-qemu-kvm
Architecture: any
Depends: ceph-common (>= 0.48),
iproute2,
libaio1,
libgfapi0 | glusterfs-common (>= 5.6),
libgfchangelog0 | glusterfs-common (>= 5.6),
libgfdb0 | glusterfs-common (>= 5.6),
@@ -55,16 +50,18 @@ Depends: ceph-common (>= 0.48),
libglusterfs-dev | glusterfs-common (>= 5.6),
libglusterfs0 | glusterfs-common (>= 5.6),
libiscsi4 (>= 1.12.0) | libiscsi7,
libjemalloc2,
libjpeg62-turbo,
libproxmox-backup-qemu0 (>= 1.0.2-1),
libsdl1.2debian,
libspice-server1 (>= 0.14.0~),
libusb-1.0-0 (>= 1.0.17-1),
libusbredirparser1 (>= 0.6-2),
vitastor-client (>= 0.9.4),
libuuid1,
numactl,
python,
${misc:Depends},
${shlibs:Depends},
Recommends: numactl,
Suggests: libgl1,
Conflicts: kvm,
pve-kvm,
pve-qemu-kvm-2.6.18,
@@ -72,17 +69,22 @@ Conflicts: kvm,
qemu-kvm,
qemu-system-arm,
qemu-system-common,
qemu-system-data,
qemu-system-x86,
qemu-utils,
Provides: qemu-system-arm, qemu-system-x86, qemu-utils,
Provides: qemu-system-arm, qemu-system-x86, qemu-utils
Replaces: pve-kvm,
pve-qemu-kvm-2.6.18,
qemu-system-arm,
qemu-system-x86,
qemu-utils,
Breaks: qemu-server (<= 8.0.6)
Description: Full virtualization on x86 hardware
Using KVM, one can run multiple virtual PCs, each running unmodified Linux or
Windows images. Each virtual machine has private virtualized hardware: a
network card, disk, graphics adapter, etc.
Package: pve-qemu-kvm-dbg
Architecture: any
Section: debug
Depends: pve-qemu-kvm (= ${binary:Version})
Description: pve qemu debugging symbols
This package contains the debugging symbols for pve-qemu-kvm.

2
debian/copyright vendored
View File

@@ -25,7 +25,7 @@ License:
In particular, the QEMU virtual CPU core library (libqemu.a) is
released under the GNU Lesser General Public License version 2 or later.
On Debian systems, the complete text of the GNU Lesser General Public
On Debian systems, the complete text of the GNU Lesser General Public
License can be found in the file /usr/share/common-licenses/LGPL.
Some hardware device emulation sources and other QEMU functionality are

View File

@@ -1,28 +0,0 @@
#!/usr/bin/perl
use warnings;
use strict;
use JSON;
my $machines = [];
while (<STDIN>) {
if (/^\s*Supported machines are:/) {
next;
}
s/^\s+//;
my @machine = split(/\s+/);
next if $machine[0] !~ m/^pc-(i440fx|q35)-(.+)$/;
push @$machines, {
'id' => $machine[0],
'type' => $1,
'version' => $2,
};
}
die "no QEMU machine types detected from STDIN input" if scalar (@$machines) <= 0;
print to_json($machines, { utf8 => 1, canonical => 1 })
or die "failed to encode detected machines as JSON - $!\n";

View File

@@ -0,0 +1,34 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Stefan Reiter <s.reiter@proxmox.com>
Date: Thu, 6 Aug 2020 15:43:58 +0200
Subject: [PATCH] block/block-copy: always align copied region to cluster size
Since commit 42ac214406e0 (block/block-copy: refactor task creation)
block_copy_task_create calculates the area to be copied via
bdrv_dirty_bitmap_next_dirty_area, but that can return an unaligned byte
count if the image's last cluster end is not aligned to the bitmap's
granularity.
Always ALIGN_UP the resulting bytes value to satisfy block_copy_do_copy,
which requires the 'bytes' parameter to be aligned to cluster size.
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Signed-off-by: Stefan Reiter <s.reiter@proxmox.com>
---
block/block-copy.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/block/block-copy.c b/block/block-copy.c
index f7428a7c08..a30b9097ef 100644
--- a/block/block-copy.c
+++ b/block/block-copy.c
@@ -142,6 +142,9 @@ static BlockCopyTask *block_copy_task_create(BlockCopyState *s,
return NULL;
}
+ assert(QEMU_IS_ALIGNED(offset, s->cluster_size));
+ bytes = QEMU_ALIGN_UP(bytes, s->cluster_size);
+
/* region is dirty, so no existent tasks possible in it */
assert(!find_conflicting_task(s, offset, bytes));

View File

@@ -1,206 +0,0 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Stefan Reiter <s.reiter@proxmox.com>
Date: Mon, 23 Aug 2021 11:28:32 +0200
Subject: [PATCH] monitor/qmp: fix race with clients disconnecting early
The following sequence can produce a race condition that results in
responses meant for different clients being sent to the wrong one:
(QMP, no OOB)
1) client A connects
2) client A sends 'qmp_capabilities'
3) 'qmp_dispatch' runs in coroutine, schedules out to
'do_qmp_dispatch_bh' and yields
4) client A disconnects (i.e. aborts, crashes, etc...)
5) client B connects
6) 'do_qmp_dispatch_bh' runs 'qmp_capabilities' and wakes calling coroutine
7) capabilities are now set and 'mon->commands' is set to '&qmp_commands'
8) 'qmp_dispatch' returns to 'monitor_qmp_dispatch'
9) success message is sent to client B *without it ever having sent
'qmp_capabilities' itself*
9a) even if client B ignores it, it will now presumably send it's own
greeting, which will error because caps are already set
The fix proposed here uses an atomic, sequential connection number
stored in the MonitorQMP struct, which is incremented everytime a new
client connects. Since it is not changed on CHR_EVENT_CLOSED, the
behaviour of allowing a client to disconnect only one side of the
connection is retained.
The connection_nr needs to be exposed outside of the monitor subsystem,
since qmp_dispatch lives in qapi code. It needs to be checked twice,
once for actually running the command in the BH (fixes 7), and once for
sending back a response (fixes 9).
This satisfies my local reproducer - using multiple clients constantly
looping to open a connection, send the greeting, then exiting no longer
crashes other, normally behaving clients with unrelated responses.
Signed-off-by: Stefan Reiter <s.reiter@proxmox.com>
Signed-off-by: Thomas Lamprecht <t.lamprecht@proxmox.com>
---
include/monitor/monitor.h | 1 +
monitor/monitor-internal.h | 7 +++++++
monitor/monitor.c | 15 +++++++++++++++
monitor/qmp.c | 15 ++++++++++++++-
qapi/qmp-dispatch.c | 21 +++++++++++++++++----
stubs/monitor-core.c | 5 +++++
6 files changed, 59 insertions(+), 5 deletions(-)
diff --git a/include/monitor/monitor.h b/include/monitor/monitor.h
index 965f5d5450..e04bd059b6 100644
--- a/include/monitor/monitor.h
+++ b/include/monitor/monitor.h
@@ -16,6 +16,7 @@ extern QemuOptsList qemu_mon_opts;
Monitor *monitor_cur(void);
Monitor *monitor_set_cur(Coroutine *co, Monitor *mon);
bool monitor_cur_is_qmp(void);
+int monitor_get_connection_nr(const Monitor *mon);
void monitor_init_globals(void);
void monitor_init_globals_core(void);
diff --git a/monitor/monitor-internal.h b/monitor/monitor-internal.h
index 252de85681..8db28f9272 100644
--- a/monitor/monitor-internal.h
+++ b/monitor/monitor-internal.h
@@ -151,6 +151,13 @@ typedef struct {
QemuMutex qmp_queue_lock;
/* Input queue that holds all the parsed QMP requests */
GQueue *qmp_requests;
+
+ /*
+ * A sequential number that gets incremented on every new CHR_EVENT_OPENED.
+ * Used to avoid leftover responses in BHs from being sent to the wrong
+ * client. Access with atomics.
+ */
+ int connection_nr;
} MonitorQMP;
/**
diff --git a/monitor/monitor.c b/monitor/monitor.c
index 01ede1babd..5681bca346 100644
--- a/monitor/monitor.c
+++ b/monitor/monitor.c
@@ -117,6 +117,21 @@ bool monitor_cur_is_qmp(void)
return cur_mon && monitor_is_qmp(cur_mon);
}
+/**
+ * If @mon is a QMP monitor, return the connection_nr, otherwise -1.
+ */
+int monitor_get_connection_nr(const Monitor *mon)
+{
+ MonitorQMP *qmp_mon;
+
+ if (!monitor_is_qmp(mon)) {
+ return -1;
+ }
+
+ qmp_mon = container_of(mon, MonitorQMP, common);
+ return qatomic_read(&qmp_mon->connection_nr);
+}
+
/**
* Is @mon is using readline?
* Note: not all HMP monitors use readline, e.g., gdbserver has a
diff --git a/monitor/qmp.c b/monitor/qmp.c
index a239945e8d..589c9524f8 100644
--- a/monitor/qmp.c
+++ b/monitor/qmp.c
@@ -165,6 +165,8 @@ static void monitor_qmp_dispatch(MonitorQMP *mon, QObject *req)
QDict *rsp;
QDict *error;
+ int conn_nr_before = qatomic_read(&mon->connection_nr);
+
rsp = qmp_dispatch(mon->commands, req, qmp_oob_enabled(mon),
&mon->common);
@@ -180,7 +182,17 @@ static void monitor_qmp_dispatch(MonitorQMP *mon, QObject *req)
}
}
- monitor_qmp_respond(mon, rsp);
+ /*
+ * qmp_dispatch might have yielded and waited for a BH, in which case there
+ * is a chance a new client connected in the meantime - if this happened,
+ * the command will not have been executed, but we also need to ensure that
+ * we don't send back a corresponding response on a line that no longer
+ * belongs to this request.
+ */
+ if (conn_nr_before == qatomic_read(&mon->connection_nr)) {
+ monitor_qmp_respond(mon, rsp);
+ }
+
qobject_unref(rsp);
}
@@ -461,6 +473,7 @@ static void monitor_qmp_event(void *opaque, QEMUChrEvent event)
switch (event) {
case CHR_EVENT_OPENED:
+ qatomic_inc_fetch(&mon->connection_nr);
mon->commands = &qmp_cap_negotiation_commands;
monitor_qmp_caps_reset(mon);
data = qmp_greeting(mon);
diff --git a/qapi/qmp-dispatch.c b/qapi/qmp-dispatch.c
index f3488afeef..2624eb3470 100644
--- a/qapi/qmp-dispatch.c
+++ b/qapi/qmp-dispatch.c
@@ -117,16 +117,28 @@ typedef struct QmpDispatchBH {
QObject **ret;
Error **errp;
Coroutine *co;
+ int conn_nr;
} QmpDispatchBH;
static void do_qmp_dispatch_bh(void *opaque)
{
QmpDispatchBH *data = opaque;
- assert(monitor_cur() == NULL);
- monitor_set_cur(qemu_coroutine_self(), data->cur_mon);
- data->cmd->fn(data->args, data->ret, data->errp);
- monitor_set_cur(qemu_coroutine_self(), NULL);
+ /*
+ * A QMP monitor tracks it's client with a connection number, if this
+ * changes during the scheduling delay of this BH, we must not execute the
+ * command. Otherwise a badly placed 'qmp_capabilities' might affect the
+ * connection state of a client it was never meant for.
+ */
+ if (data->conn_nr == monitor_get_connection_nr(data->cur_mon)) {
+ assert(monitor_cur() == NULL);
+ monitor_set_cur(qemu_coroutine_self(), data->cur_mon);
+ data->cmd->fn(data->args, data->ret, data->errp);
+ monitor_set_cur(qemu_coroutine_self(), NULL);
+ } else {
+ error_setg(data->errp, "active monitor connection changed");
+ }
+
aio_co_wake(data->co);
}
@@ -250,6 +262,7 @@ QDict *coroutine_mixed_fn qmp_dispatch(const QmpCommandList *cmds, QObject *requ
.ret = &ret,
.errp = &err,
.co = qemu_coroutine_self(),
+ .conn_nr = monitor_get_connection_nr(cur_mon),
};
aio_bh_schedule_oneshot(iohandler_get_aio_context(), do_qmp_dispatch_bh,
&data);
diff --git a/stubs/monitor-core.c b/stubs/monitor-core.c
index afa477aae6..d3ff124bf3 100644
--- a/stubs/monitor-core.c
+++ b/stubs/monitor-core.c
@@ -12,6 +12,11 @@ Monitor *monitor_set_cur(Coroutine *co, Monitor *mon)
return NULL;
}
+int monitor_get_connection_nr(const Monitor *mon)
+{
+ return -1;
+}
+
void monitor_init_qmp(Chardev *chr, bool pretty, Error **errp)
{
}

View File

@@ -0,0 +1,33 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Thomas Lamprecht <t.lamprecht@proxmox.com>
Date: Mon, 14 Sep 2020 19:32:21 +0200
Subject: [PATCH] Revert "qemu-img convert: Don't pre-zero images"
This reverts commit edafc70c0c8510862f2f213a3acf7067113bcd08.
As it correlates with causing issues on LVM allocation
https://bugzilla.proxmox.com/show_bug.cgi?id=3002
---
qemu-img.c | 9 +++++++++
1 file changed, 9 insertions(+)
diff --git a/qemu-img.c b/qemu-img.c
index 9635e9c001..c7884d248a 100644
--- a/qemu-img.c
+++ b/qemu-img.c
@@ -2079,6 +2079,15 @@ static int convert_do_copy(ImgConvertState *s)
s->has_zero_init = bdrv_has_zero_init(blk_bs(s->target));
}
+ if (!s->has_zero_init && !s->target_has_backing &&
+ bdrv_can_write_zeroes_with_unmap(blk_bs(s->target)))
+ {
+ ret = blk_make_zero(s->target, BDRV_REQ_MAY_UNMAP | BDRV_REQ_NO_FALLBACK);
+ if (ret == 0) {
+ s->has_zero_init = true;
+ }
+ }
+
/* Allocate buffer for copied data. For compressed images, only one cluster
* can be copied at a time. */
if (s->compressed) {

View File

@@ -1,69 +0,0 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Guenter Roeck <linux@roeck-us.net>
Date: Tue, 28 Feb 2023 09:11:29 -0800
Subject: [PATCH] scsi: megasas: Internal cdbs have 16-byte length
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
Host drivers do not necessarily set cdb_len in megasas io commands.
With commits 6d1511cea0 ("scsi: Reject commands if the CDB length
exceeds buf_len") and fe9d8927e2 ("scsi: Add buf_len parameter to
scsi_req_new()"), this results in failures to boot Linux from affected
SCSI drives because cdb_len is set to 0 by the host driver.
Set the cdb length to its actual size to solve the problem.
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
(picked-up from https://lists.nongnu.org/archive/html/qemu-devel/2023-02/msg08653.html)
Signed-off-by: Fiona Ebner <f.ebner@proxmox.com>
---
hw/scsi/megasas.c | 14 ++------------
1 file changed, 2 insertions(+), 12 deletions(-)
diff --git a/hw/scsi/megasas.c b/hw/scsi/megasas.c
index 2d0c607177..97e51733af 100644
--- a/hw/scsi/megasas.c
+++ b/hw/scsi/megasas.c
@@ -1781,7 +1781,7 @@ static int megasas_handle_io(MegasasState *s, MegasasCmd *cmd, int frame_cmd)
uint8_t cdb[16];
int len;
struct SCSIDevice *sdev = NULL;
- int target_id, lun_id, cdb_len;
+ int target_id, lun_id;
lba_count = le32_to_cpu(cmd->frame->io.header.data_len);
lba_start_lo = le32_to_cpu(cmd->frame->io.lba_lo);
@@ -1790,7 +1790,6 @@ static int megasas_handle_io(MegasasState *s, MegasasCmd *cmd, int frame_cmd)
target_id = cmd->frame->header.target_id;
lun_id = cmd->frame->header.lun_id;
- cdb_len = cmd->frame->header.cdb_len;
if (target_id < MFI_MAX_LD && lun_id == 0) {
sdev = scsi_device_find(&s->bus, 0, target_id, lun_id);
@@ -1805,15 +1804,6 @@ static int megasas_handle_io(MegasasState *s, MegasasCmd *cmd, int frame_cmd)
return MFI_STAT_DEVICE_NOT_FOUND;
}
- if (cdb_len > 16) {
- trace_megasas_scsi_invalid_cdb_len(
- mfi_frame_desc(frame_cmd), 1, target_id, lun_id, cdb_len);
- megasas_write_sense(cmd, SENSE_CODE(INVALID_OPCODE));
- cmd->frame->header.scsi_status = CHECK_CONDITION;
- s->event_count++;
- return MFI_STAT_SCSI_DONE_WITH_ERROR;
- }
-
cmd->iov_size = lba_count * sdev->blocksize;
if (megasas_map_sgl(s, cmd, &cmd->frame->io.sgl)) {
megasas_write_sense(cmd, SENSE_CODE(TARGET_FAILURE));
@@ -1824,7 +1814,7 @@ static int megasas_handle_io(MegasasState *s, MegasasCmd *cmd, int frame_cmd)
megasas_encode_lba(cdb, lba_start, lba_count, is_write);
cmd->req = scsi_req_new(sdev, cmd->index,
- lun_id, cdb, cdb_len, cmd);
+ lun_id, cdb, sizeof(cdb), cmd);
if (!cmd->req) {
trace_megasas_scsi_req_alloc_failed(
mfi_frame_desc(frame_cmd), target_id, lun_id);

View File

@@ -1,100 +0,0 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Fiona Ebner <f.ebner@proxmox.com>
Date: Tue, 7 Mar 2023 15:03:02 +0100
Subject: [PATCH] ide: avoid potential deadlock when draining during trim
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
The deadlock can happen as follows:
1. ide_issue_trim is called, and increments the in_flight counter.
2. ide_issue_trim_cb calls blk_aio_pdiscard.
3. Somebody else starts draining (e.g. backup to insert the cbw node).
4. ide_issue_trim_cb is called as the completion callback for
blk_aio_pdiscard.
5. ide_issue_trim_cb issues yet another blk_aio_pdiscard request.
6. The request is added to the wait queue via blk_wait_while_drained,
because draining has been started.
7. Nobody ever decrements the in_flight counter and draining can't
finish. This would be done by ide_trim_bh_cb, which is called after
ide_issue_trim_cb has issued its last request, but
ide_issue_trim_cb is not called anymore, because it's the
completion callback of blk_aio_pdiscard, which waits on draining.
Quoting Hanna Czenczek:
> The point of 7e5cdb345f was that we need any in-flight count to
> accompany a set s->bus->dma->aiocb. While blk_aio_pdiscard() is
> happening, we dont necessarily need another count. But we do need
> it while there is no blk_aio_pdiscard().
> ide_issue_trim_cb() returns in two cases (and, recursively through
> its callers, leaves s->bus->dma->aiocb set):
> 1. After calling blk_aio_pdiscard(), which will keep an in-flight
> count,
> 2. After calling replay_bh_schedule_event() (i.e.
> qemu_bh_schedule()), which does not keep an in-flight count.
Thus, even after moving the blk_inc_in_flight to above the
replay_bh_schedule_event call, the invariant "ide_issue_trim_cb
returns with an accompanying in-flight count" is still satisfied.
However, the issue 7e5cdb345f fixed for canceling resurfaces, because
ide_cancel_dma_sync assumes that it just needs to drain once. But now
the in_flight count is not consistently > 0 during the trim operation.
So, change it to drain until !s->bus->dma->aiocb, which means that the
operation finished (s->bus->dma->aiocb is cleared by ide_set_inactive
via the ide_dma_cb when the end of the transfer is reached).
Discussion here:
https://lists.nongnu.org/archive/html/qemu-devel/2023-03/msg02506.html
Fixes: 7e5cdb345f ("ide: Increment BB in-flight counter for TRIM BH")
Suggested-by: Hanna Czenczek <hreitz@redhat.com>
Signed-off-by: Fiona Ebner <f.ebner@proxmox.com>
---
hw/ide/core.c | 12 ++++++------
1 file changed, 6 insertions(+), 6 deletions(-)
diff --git a/hw/ide/core.c b/hw/ide/core.c
index e8cb2dac92..3b21acf651 100644
--- a/hw/ide/core.c
+++ b/hw/ide/core.c
@@ -456,7 +456,7 @@ static void ide_trim_bh_cb(void *opaque)
iocb->bh = NULL;
qemu_aio_unref(iocb);
- /* Paired with an increment in ide_issue_trim() */
+ /* Paired with an increment in ide_issue_trim_cb() */
blk_dec_in_flight(blk);
}
@@ -516,6 +516,8 @@ static void ide_issue_trim_cb(void *opaque, int ret)
done:
iocb->aiocb = NULL;
if (iocb->bh) {
+ /* Paired with a decrement in ide_trim_bh_cb() */
+ blk_inc_in_flight(s->blk);
replay_bh_schedule_event(iocb->bh);
}
}
@@ -528,9 +530,6 @@ BlockAIOCB *ide_issue_trim(
IDEDevice *dev = s->unit ? s->bus->slave : s->bus->master;
TrimAIOCB *iocb;
- /* Paired with a decrement in ide_trim_bh_cb() */
- blk_inc_in_flight(s->blk);
-
iocb = blk_aio_get(&trim_aiocb_info, s->blk, cb, cb_opaque);
iocb->s = s;
iocb->bh = qemu_bh_new_guarded(ide_trim_bh_cb, iocb,
@@ -754,8 +753,9 @@ void ide_cancel_dma_sync(IDEState *s)
*/
if (s->bus->dma->aiocb) {
trace_ide_cancel_dma_sync_remaining();
- blk_drain(s->blk);
- assert(s->bus->dma->aiocb == NULL);
+ while (s->bus->dma->aiocb) {
+ blk_drain(s->blk);
+ }
}
}

View File

@@ -0,0 +1,87 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Gerd Hoffmann <kraxel@redhat.com>
Date: Tue, 25 Aug 2020 07:36:36 +0200
Subject: [PATCH] usb: fix setup_len init (CVE-2020-14364)
Store calculated setup_len in a local variable, verify it, and only
write it to the struct (USBDevice->setup_len) in case it passed the
sanity checks.
This prevents other code (do_token_{in,out} functions specifically)
from working with invalid USBDevice->setup_len values and overrunning
the USBDevice->setup_buf[] buffer.
Fixes: CVE-2020-14364
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Tested-by: Gonglei <arei.gonglei@huawei.com>
Reviewed-by: Li Qiang <liq3ea@gmail.com>
Message-id: 20200825053636.29648-1-kraxel@redhat.com
(cherry picked from commit b946434f2659a182afc17e155be6791ebfb302eb)
Signed-off-by: Thomas Lamprecht <t.lamprecht@proxmox.com>
---
hw/usb/core.c | 16 ++++++++++------
1 file changed, 10 insertions(+), 6 deletions(-)
diff --git a/hw/usb/core.c b/hw/usb/core.c
index 5abd128b6b..5234dcc73f 100644
--- a/hw/usb/core.c
+++ b/hw/usb/core.c
@@ -129,6 +129,7 @@ void usb_wakeup(USBEndpoint *ep, unsigned int stream)
static void do_token_setup(USBDevice *s, USBPacket *p)
{
int request, value, index;
+ unsigned int setup_len;
if (p->iov.size != 8) {
p->status = USB_RET_STALL;
@@ -138,14 +139,15 @@ static void do_token_setup(USBDevice *s, USBPacket *p)
usb_packet_copy(p, s->setup_buf, p->iov.size);
s->setup_index = 0;
p->actual_length = 0;
- s->setup_len = (s->setup_buf[7] << 8) | s->setup_buf[6];
- if (s->setup_len > sizeof(s->data_buf)) {
+ setup_len = (s->setup_buf[7] << 8) | s->setup_buf[6];
+ if (setup_len > sizeof(s->data_buf)) {
fprintf(stderr,
"usb_generic_handle_packet: ctrl buffer too small (%d > %zu)\n",
- s->setup_len, sizeof(s->data_buf));
+ setup_len, sizeof(s->data_buf));
p->status = USB_RET_STALL;
return;
}
+ s->setup_len = setup_len;
request = (s->setup_buf[0] << 8) | s->setup_buf[1];
value = (s->setup_buf[3] << 8) | s->setup_buf[2];
@@ -259,26 +261,28 @@ static void do_token_out(USBDevice *s, USBPacket *p)
static void do_parameter(USBDevice *s, USBPacket *p)
{
int i, request, value, index;
+ unsigned int setup_len;
for (i = 0; i < 8; i++) {
s->setup_buf[i] = p->parameter >> (i*8);
}
s->setup_state = SETUP_STATE_PARAM;
- s->setup_len = (s->setup_buf[7] << 8) | s->setup_buf[6];
s->setup_index = 0;
request = (s->setup_buf[0] << 8) | s->setup_buf[1];
value = (s->setup_buf[3] << 8) | s->setup_buf[2];
index = (s->setup_buf[5] << 8) | s->setup_buf[4];
- if (s->setup_len > sizeof(s->data_buf)) {
+ setup_len = (s->setup_buf[7] << 8) | s->setup_buf[6];
+ if (setup_len > sizeof(s->data_buf)) {
fprintf(stderr,
"usb_generic_handle_packet: ctrl buffer too small (%d > %zu)\n",
- s->setup_len, sizeof(s->data_buf));
+ setup_len, sizeof(s->data_buf));
p->status = USB_RET_STALL;
return;
}
+ s->setup_len = setup_len;
if (p->pid == USB_TOKEN_OUT) {
usb_packet_copy(p, s->data_buf, s->setup_len);

View File

@@ -1,45 +0,0 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Fiona Ebner <f.ebner@proxmox.com>
Date: Fri, 17 Nov 2023 11:18:06 +0100
Subject: [PATCH] Revert "x86: acpi: workaround Windows not handling name
references in Package properly"
This reverts commit 44d975ef340e2f21f236f9520c53e1b30d2213a4.
As reported in the community forum [0] and reproduced locally this
breaks VirtIO network adapters in (at least) the German ISO of Windows
Server 2022. The fix itself was for
> Issue is not fatal but as result acpi-index/"PCI Label ID" property
> is either not shown in device details page or shows incorrect value.
so revert and tolerate that as a stop-gap, rather than have the
devices not working at all.
[0]: https://forum.proxmox.com/threads/92094/post-605684
Signed-off-by: Fiona Ebner <f.ebner@proxmox.com>
---
hw/i386/acpi-build.c | 8 ++------
1 file changed, 2 insertions(+), 6 deletions(-)
diff --git a/hw/i386/acpi-build.c b/hw/i386/acpi-build.c
index 53f804ac16..9b1b9f0412 100644
--- a/hw/i386/acpi-build.c
+++ b/hw/i386/acpi-build.c
@@ -347,13 +347,9 @@ Aml *aml_pci_device_dsm(void)
{
Aml *params = aml_local(0);
Aml *pkg = aml_package(2);
- aml_append(pkg, aml_int(0));
- aml_append(pkg, aml_int(0));
+ aml_append(pkg, aml_name("BSEL"));
+ aml_append(pkg, aml_name("ASUN"));
aml_append(method, aml_store(pkg, params));
- aml_append(method,
- aml_store(aml_name("BSEL"), aml_index(params, aml_int(0))));
- aml_append(method,
- aml_store(aml_name("ASUN"), aml_index(params, aml_int(1))));
aml_append(method,
aml_return(aml_call5("PDSM", aml_arg(0), aml_arg(1),
aml_arg(2), aml_arg(3), params))

View File

@@ -1,35 +0,0 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Fiona Ebner <f.ebner@proxmox.com>
Date: Mon, 29 Apr 2024 15:41:11 +0200
Subject: [PATCH] block/copy-before-write: use uint64_t for timeout in
nanoseconds
rather than the uint32_t for which the maximum is slightly more than 4
seconds and larger values would overflow. The QAPI interface allows
specifying the number of seconds, so only values 0 to 4 are safe right
now, other values lead to a much lower timeout than a user expects.
The block_copy() call where this is used already takes a uint64_t for
the timeout, so no change required there.
Fixes: 6db7fd1ca9 ("block/copy-before-write: implement cbw-timeout option")
Reported-by: Friedrich Weber <f.weber@proxmox.com>
Signed-off-by: Fiona Ebner <f.ebner@proxmox.com>
Tested-by: Friedrich Weber <f.weber@proxmox.com>
---
block/copy-before-write.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/block/copy-before-write.c b/block/copy-before-write.c
index 8aba27a71d..026fa9840f 100644
--- a/block/copy-before-write.c
+++ b/block/copy-before-write.c
@@ -43,7 +43,7 @@ typedef struct BDRVCopyBeforeWriteState {
BlockCopyState *bcs;
BdrvChild *target;
OnCbwError on_cbw_error;
- uint32_t cbw_timeout_ns;
+ uint64_t cbw_timeout_ns;
/*
* @lock: protects access to @access_bitmap, @done_bitmap and

View File

@@ -0,0 +1,778 @@
Index: pve-qemu-kvm-5.1.0/qapi/block-core.json
===================================================================
--- pve-qemu-kvm-5.1.0.orig/qapi/block-core.json
+++ pve-qemu-kvm-5.1.0/qapi/block-core.json
@@ -3041,7 +3041,7 @@
'luks', 'nbd', 'nfs', 'null-aio', 'null-co', 'nvme', 'parallels',
'qcow', 'qcow2', 'qed', 'quorum', 'raw', 'rbd',
{ 'name': 'replication', 'if': 'defined(CONFIG_REPLICATION)' },
- 'sheepdog', 'pbs',
+ 'sheepdog', 'pbs', 'vitastor',
'ssh', 'throttle', 'vdi', 'vhdx', 'vmdk', 'vpc', 'vvfat' ] }
##
@@ -3889,6 +3889,28 @@
'*tag': 'str' } }
##
+# @BlockdevOptionsVitastor:
+#
+# Driver specific block device options for vitastor
+#
+# @image: Image name
+# @inode: Inode number
+# @pool: Pool ID
+# @size: Desired image size in bytes
+# @config-path: Path to Vitastor configuration
+# @etcd-host: etcd connection address(es)
+# @etcd-prefix: etcd key/value prefix
+##
+{ 'struct': 'BlockdevOptionsVitastor',
+ 'data': { '*inode': 'uint64',
+ '*pool': 'uint64',
+ '*size': 'uint64',
+ '*image': 'str',
+ '*config-path': 'str',
+ '*etcd-host': 'str',
+ '*etcd-prefix': 'str' } }
+
+##
# @ReplicationMode:
#
# An enumeration of replication modes.
@@ -4234,6 +4256,7 @@
'replication': { 'type': 'BlockdevOptionsReplication',
'if': 'defined(CONFIG_REPLICATION)' },
'sheepdog': 'BlockdevOptionsSheepdog',
+ 'vitastor': 'BlockdevOptionsVitastor',
'ssh': 'BlockdevOptionsSsh',
'throttle': 'BlockdevOptionsThrottle',
'vdi': 'BlockdevOptionsGenericFormat',
@@ -4623,6 +4646,17 @@
'*cluster-size' : 'size' } }
##
+# @BlockdevCreateOptionsVitastor:
+#
+# Driver specific image creation options for Vitastor.
+#
+# @size: Size of the virtual disk in bytes
+##
+{ 'struct': 'BlockdevCreateOptionsVitastor',
+ 'data': { 'location': 'BlockdevOptionsVitastor',
+ 'size': 'size' } }
+
+##
# @BlockdevVmdkSubformat:
#
# Subformat options for VMDK images
@@ -4884,6 +4918,7 @@
'qed': 'BlockdevCreateOptionsQed',
'rbd': 'BlockdevCreateOptionsRbd',
'sheepdog': 'BlockdevCreateOptionsSheepdog',
+ 'vitastor': 'BlockdevCreateOptionsVitastor',
'ssh': 'BlockdevCreateOptionsSsh',
'vdi': 'BlockdevCreateOptionsVdi',
'vhdx': 'BlockdevCreateOptionsVhdx',
Index: pve-qemu-kvm-5.1.0/configure
===================================================================
--- pve-qemu-kvm-5.1.0.orig/configure
+++ pve-qemu-kvm-5.1.0/configure
@@ -446,6 +446,7 @@ trace_backends="log"
trace_file="trace"
spice=""
rbd=""
+vitastor=""
smartcard=""
libusb=""
usb_redir=""
@@ -1383,6 +1384,10 @@ for opt do
;;
--enable-rbd) rbd="yes"
;;
+ --disable-vitastor) vitastor="no"
+ ;;
+ --enable-vitastor) vitastor="yes"
+ ;;
--disable-xfsctl) xfs="no"
;;
--enable-xfsctl) xfs="yes"
@@ -1901,6 +1906,7 @@ disabled with --disable-FEATURE, default
vhost-vdpa vhost-vdpa kernel backend support
spice spice
rbd rados block device (rbd)
+ vitastor vitastor block device
libiscsi iscsi support
libnfs nfs support
smartcard smartcard support (libcacard)
@@ -4234,6 +4240,27 @@ EOF
fi
##########################################
+# vitastor probe
+if test "$vitastor" != "no" ; then
+ cat > $TMPC <<EOF
+#include <vitastor_c.h>
+int main(void) {
+ vitastor_c_create_qemu(0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0);
+ return 0;
+}
+EOF
+ vitastor_libs="-lvitastor_client"
+ if compile_prog "" "$vitastor_libs" ; then
+ vitastor=yes
+ else
+ if test "$vitastor" = "yes" ; then
+ feature_not_found "vitastor block device" "Install vitastor-client-dev"
+ fi
+ vitastor=no
+ fi
+fi
+
+##########################################
# libssh probe
if test "$libssh" != "no" ; then
if $pkg_config --exists libssh; then
@@ -6969,6 +6996,7 @@ echo "Trace output file $trace_file-<pid
fi
echo "spice support $spice $(echo_version $spice $spice_protocol_version/$spice_server_version)"
echo "rbd support $rbd"
+echo "vitastor support $vitastor"
echo "xfsctl support $xfs"
echo "smartcard support $smartcard"
echo "libusb $libusb"
@@ -7644,6 +7672,10 @@ if test "$rbd" = "yes" ; then
echo "RBD_CFLAGS=$rbd_cflags" >> $config_host_mak
echo "RBD_LIBS=$rbd_libs" >> $config_host_mak
fi
+if test "$vitastor" = "yes" ; then
+ echo "CONFIG_VITASTOR=y" >> $config_host_mak
+ echo "VITASTOR_LIBS=$vitastor_libs" >> $config_host_mak
+fi
echo "CONFIG_COROUTINE_BACKEND=$coroutine" >> $config_host_mak
if test "$coroutine_pool" = "yes" ; then
Index: pve-qemu-kvm-5.1.0/block/vitastor.c
===================================================================
--- /dev/null
+++ pve-qemu-kvm-5.1.0/block/vitastor.c
@@ -0,0 +1,598 @@
+// Copyright (c) Vitaliy Filippov, 2019+
+// License: VNPL-1.1 or GNU GPL-2.0+ (see README.md for details)
+
+// QEMU block driver
+
+#ifdef VITASTOR_SOURCE_TREE
+#define BUILD_DSO
+#define _GNU_SOURCE
+#endif
+#include "qemu/osdep.h"
+#include "qemu/main-loop.h"
+#include "block/block_int.h"
+#include "qapi/error.h"
+#include "qapi/qmp/qdict.h"
+#include "qapi/qmp/qerror.h"
+#include "qemu/uri.h"
+#include "qemu/error-report.h"
+#include "qemu/module.h"
+#include "qemu/option.h"
+
+#if QEMU_VERSION_MAJOR >= 3
+#include "qemu/units.h"
+#include "block/qdict.h"
+#include "qemu/cutils.h"
+#elif QEMU_VERSION_MAJOR == 2 && QEMU_VERSION_MINOR >= 10
+#include "qemu/cutils.h"
+#include "qapi/qmp/qstring.h"
+#include "qapi/qmp/qjson.h"
+#else
+#include "qapi/qmp/qint.h"
+#define qdict_put_int(options, name, num_val) qdict_put_obj(options, name, QOBJECT(qint_from_int(num_val)))
+#define qdict_put_str(options, name, value) qdict_put_obj(options, name, QOBJECT(qstring_from_str(value)))
+#define qobject_unref QDECREF
+#endif
+
+#include "vitastor_c.h"
+
+#ifdef VITASTOR_SOURCE_TREE
+void qemu_module_dummy(void)
+{
+}
+
+void DSO_STAMP_FUN(void)
+{
+}
+#endif
+
+typedef struct VitastorClient
+{
+ void *proxy;
+ void *watch;
+ char *config_path;
+ char *etcd_host;
+ char *etcd_prefix;
+ char *image;
+ uint64_t inode;
+ uint64_t pool;
+ uint64_t size;
+ long readonly;
+ int use_rdma;
+ char *rdma_device;
+ int rdma_port_num;
+ int rdma_gid_index;
+ int rdma_mtu;
+ QemuMutex mutex;
+} VitastorClient;
+
+typedef struct VitastorRPC
+{
+ BlockDriverState *bs;
+ Coroutine *co;
+ QEMUIOVector *iov;
+ long ret;
+ int complete;
+} VitastorRPC;
+
+static void vitastor_co_init_task(BlockDriverState *bs, VitastorRPC *task);
+static void vitastor_co_generic_bh_cb(void *opaque, long retval);
+static void vitastor_co_read_cb(void *opaque, long retval, uint64_t version);
+static void vitastor_close(BlockDriverState *bs);
+
+static char *qemu_vitastor_next_tok(char *src, char delim, char **p)
+{
+ char *end;
+ *p = NULL;
+ for (end = src; *end; ++end)
+ {
+ if (*end == delim)
+ break;
+ if (*end == '\\' && end[1] != '\0')
+ end++;
+ }
+ if (*end == delim)
+ {
+ *p = end + 1;
+ *end = '\0';
+ }
+ return src;
+}
+
+static void qemu_vitastor_unescape(char *src)
+{
+ char *p;
+ for (p = src; *src; ++src, ++p)
+ {
+ if (*src == '\\' && src[1] != '\0')
+ src++;
+ *p = *src;
+ }
+ *p = '\0';
+}
+
+// vitastor[:key=value]*
+// vitastor[:etcd_host=127.0.0.1]:inode=1:pool=1[:rdma_gid_index=3]
+// vitastor:config_path=/etc/vitastor/vitastor.conf:image=testimg
+static void vitastor_parse_filename(const char *filename, QDict *options, Error **errp)
+{
+ const char *start;
+ char *p, *buf;
+
+ if (!strstart(filename, "vitastor:", &start))
+ {
+ error_setg(errp, "File name must start with 'vitastor:'");
+ return;
+ }
+
+ buf = g_strdup(start);
+ p = buf;
+
+ // The following are all key/value pairs
+ while (p)
+ {
+ int i;
+ char *name, *value;
+ name = qemu_vitastor_next_tok(p, '=', &p);
+ if (!p)
+ {
+ error_setg(errp, "conf option %s has no value", name);
+ break;
+ }
+ for (i = 0; i < strlen(name); i++)
+ if (name[i] == '_')
+ name[i] = '-';
+ qemu_vitastor_unescape(name);
+ value = qemu_vitastor_next_tok(p, ':', &p);
+ qemu_vitastor_unescape(value);
+ if (!strcmp(name, "inode") ||
+ !strcmp(name, "pool") ||
+ !strcmp(name, "size") ||
+ !strcmp(name, "use-rdma") ||
+ !strcmp(name, "rdma-port_num") ||
+ !strcmp(name, "rdma-gid-index") ||
+ !strcmp(name, "rdma-mtu"))
+ {
+ unsigned long long num_val;
+ if (parse_uint_full(value, &num_val, 0))
+ {
+ error_setg(errp, "Illegal %s: %s", name, value);
+ goto out;
+ }
+ qdict_put_int(options, name, num_val);
+ }
+ else
+ {
+ qdict_put_str(options, name, value);
+ }
+ }
+ if (!qdict_get_try_str(options, "image"))
+ {
+ if (!qdict_get_try_int(options, "inode", 0))
+ {
+ error_setg(errp, "one of image (name) and inode (number) must be specified");
+ goto out;
+ }
+ if (!(qdict_get_try_int(options, "inode", 0) >> (64-POOL_ID_BITS)) &&
+ !qdict_get_try_int(options, "pool", 0))
+ {
+ error_setg(errp, "pool number must be specified or included in the inode number");
+ goto out;
+ }
+ if (!qdict_get_try_int(options, "size", 0))
+ {
+ error_setg(errp, "size must be specified when inode number is used instead of image name");
+ goto out;
+ }
+ }
+
+out:
+ g_free(buf);
+ return;
+}
+
+static void coroutine_fn vitastor_co_get_metadata(VitastorRPC *task)
+{
+ BlockDriverState *bs = task->bs;
+ VitastorClient *client = bs->opaque;
+ task->co = qemu_coroutine_self();
+
+ qemu_mutex_lock(&client->mutex);
+ vitastor_c_watch_inode(client->proxy, client->image, vitastor_co_generic_bh_cb, task);
+ qemu_mutex_unlock(&client->mutex);
+
+ while (!task->complete)
+ {
+ qemu_coroutine_yield();
+ }
+}
+
+static int vitastor_file_open(BlockDriverState *bs, QDict *options, int flags, Error **errp)
+{
+ VitastorClient *client = bs->opaque;
+ int64_t ret = 0;
+ qemu_mutex_init(&client->mutex);
+ client->config_path = g_strdup(qdict_get_try_str(options, "config-path"));
+ // FIXME: Rename to etcd_address
+ client->etcd_host = g_strdup(qdict_get_try_str(options, "etcd-host"));
+ client->etcd_prefix = g_strdup(qdict_get_try_str(options, "etcd-prefix"));
+ client->use_rdma = qdict_get_try_int(options, "use-rdma", -1);
+ client->rdma_device = g_strdup(qdict_get_try_str(options, "rdma-device"));
+ client->rdma_port_num = qdict_get_try_int(options, "rdma-port-num", 0);
+ client->rdma_gid_index = qdict_get_try_int(options, "rdma-gid-index", 0);
+ client->rdma_mtu = qdict_get_try_int(options, "rdma-mtu", 0);
+ client->proxy = vitastor_c_create_qemu(
+ (QEMUSetFDHandler*)aio_set_fd_handler, bdrv_get_aio_context(bs), client->config_path, client->etcd_host, client->etcd_prefix,
+ client->use_rdma, client->rdma_device, client->rdma_port_num, client->rdma_gid_index, client->rdma_mtu, 0
+ );
+ client->image = g_strdup(qdict_get_try_str(options, "image"));
+ client->readonly = (flags & BDRV_O_RDWR) ? 1 : 0;
+ if (client->image)
+ {
+ // Get image metadata (size and readonly flag)
+ VitastorRPC task;
+ task.complete = 0;
+ task.bs = bs;
+ if (qemu_in_coroutine())
+ {
+ vitastor_co_get_metadata(&task);
+ }
+ else
+ {
+ qemu_coroutine_enter(qemu_coroutine_create((void(*)(void*))vitastor_co_get_metadata, &task));
+ }
+ BDRV_POLL_WHILE(bs, !task.complete);
+ client->watch = (void*)task.ret;
+ client->readonly = client->readonly || vitastor_c_inode_get_readonly(client->watch);
+ client->size = vitastor_c_inode_get_size(client->watch);
+ if (!vitastor_c_inode_get_num(client->watch))
+ {
+ error_setg(errp, "image does not exist");
+ vitastor_close(bs);
+ return -1;
+ }
+ if (!client->size)
+ {
+ client->size = qdict_get_try_int(options, "size", 0);
+ }
+ }
+ else
+ {
+ client->watch = NULL;
+ client->inode = qdict_get_try_int(options, "inode", 0);
+ client->pool = qdict_get_try_int(options, "pool", 0);
+ if (client->pool)
+ {
+ client->inode = (client->inode & ((1l << (64-POOL_ID_BITS)) - 1)) | (client->pool << (64-POOL_ID_BITS));
+ }
+ client->size = qdict_get_try_int(options, "size", 0);
+ }
+ if (!client->size)
+ {
+ error_setg(errp, "image size not specified");
+ vitastor_close(bs);
+ return -1;
+ }
+ bs->total_sectors = client->size / BDRV_SECTOR_SIZE;
+ //client->aio_context = bdrv_get_aio_context(bs);
+ qdict_del(options, "use-rdma");
+ qdict_del(options, "rdma-mtu");
+ qdict_del(options, "rdma-gid-index");
+ qdict_del(options, "rdma-port-num");
+ qdict_del(options, "rdma-device");
+ qdict_del(options, "config-path");
+ qdict_del(options, "etcd-host");
+ qdict_del(options, "etcd-prefix");
+ qdict_del(options, "image");
+ qdict_del(options, "inode");
+ qdict_del(options, "pool");
+ qdict_del(options, "size");
+ return ret;
+}
+
+static void vitastor_close(BlockDriverState *bs)
+{
+ VitastorClient *client = bs->opaque;
+ vitastor_c_destroy(client->proxy);
+ qemu_mutex_destroy(&client->mutex);
+ if (client->config_path)
+ g_free(client->config_path);
+ if (client->etcd_host)
+ g_free(client->etcd_host);
+ if (client->etcd_prefix)
+ g_free(client->etcd_prefix);
+ if (client->image)
+ g_free(client->image);
+}
+
+#if QEMU_VERSION_MAJOR >= 3 || QEMU_VERSION_MAJOR == 2 && QEMU_VERSION_MINOR > 2
+static int vitastor_probe_blocksizes(BlockDriverState *bs, BlockSizes *bsz)
+{
+ bsz->phys = 4096;
+ bsz->log = 512;
+ return 0;
+}
+#endif
+
+#if QEMU_VERSION_MAJOR >= 3 || QEMU_VERSION_MAJOR == 2 && QEMU_VERSION_MINOR >= 12
+static int coroutine_fn vitastor_co_create_opts(
+#if QEMU_VERSION_MAJOR >= 4
+ BlockDriver *drv,
+#endif
+ const char *url, QemuOpts *opts, Error **errp)
+{
+ QDict *options;
+ int ret;
+
+ options = qdict_new();
+ vitastor_parse_filename(url, options, errp);
+ if (*errp)
+ {
+ ret = -1;
+ goto out;
+ }
+
+ // inodes don't require creation in Vitastor. FIXME: They will when there will be some metadata
+
+ ret = 0;
+out:
+ qobject_unref(options);
+ return ret;
+}
+#endif
+
+#if QEMU_VERSION_MAJOR >= 3
+static int coroutine_fn vitastor_co_truncate(BlockDriverState *bs, int64_t offset,
+#if QEMU_VERSION_MAJOR >= 4
+ bool exact,
+#endif
+ PreallocMode prealloc,
+#if QEMU_VERSION_MAJOR >= 5 && QEMU_VERSION_MINOR >= 1 || QEMU_VERSION_MAJOR > 5 || defined RHEL_BDRV_CO_TRUNCATE_FLAGS
+ BdrvRequestFlags flags,
+#endif
+ Error **errp)
+{
+ VitastorClient *client = bs->opaque;
+
+ if (prealloc != PREALLOC_MODE_OFF)
+ {
+ error_setg(errp, "Unsupported preallocation mode '%s'", PreallocMode_str(prealloc));
+ return -ENOTSUP;
+ }
+
+ // TODO: Resize inode to <offset> bytes
+ client->size = offset / BDRV_SECTOR_SIZE;
+
+ return 0;
+}
+#endif
+
+static int vitastor_get_info(BlockDriverState *bs, BlockDriverInfo *bdi)
+{
+ bdi->cluster_size = 4096;
+ return 0;
+}
+
+static int64_t vitastor_getlength(BlockDriverState *bs)
+{
+ VitastorClient *client = bs->opaque;
+ return client->size;
+}
+
+#if QEMU_VERSION_MAJOR >= 3 || QEMU_VERSION_MAJOR == 2 && QEMU_VERSION_MINOR > 0
+static void vitastor_refresh_limits(BlockDriverState *bs, Error **errp)
+#else
+static int vitastor_refresh_limits(BlockDriverState *bs)
+#endif
+{
+ bs->bl.request_alignment = 4096;
+#if QEMU_VERSION_MAJOR >= 3 || QEMU_VERSION_MAJOR == 2 && QEMU_VERSION_MINOR > 3
+ bs->bl.min_mem_alignment = 4096;
+#endif
+ bs->bl.opt_mem_alignment = 4096;
+#if QEMU_VERSION_MAJOR < 2 || QEMU_VERSION_MAJOR == 2 && QEMU_VERSION_MINOR == 0
+ return 0;
+#endif
+}
+
+//static int64_t vitastor_get_allocated_file_size(BlockDriverState *bs)
+//{
+// return 0;
+//}
+
+static void vitastor_co_init_task(BlockDriverState *bs, VitastorRPC *task)
+{
+ *task = (VitastorRPC) {
+ .co = qemu_coroutine_self(),
+ .bs = bs,
+ };
+}
+
+static void vitastor_co_generic_bh_cb(void *opaque, long retval)
+{
+ VitastorRPC *task = opaque;
+ task->ret = retval;
+ task->complete = 1;
+ if (qemu_coroutine_self() != task->co)
+ {
+#if QEMU_VERSION_MAJOR >= 3 || QEMU_VERSION_MAJOR == 2 && QEMU_VERSION_MINOR > 8
+ aio_co_wake(task->co);
+#else
+ qemu_coroutine_enter(task->co, NULL);
+ qemu_aio_release(task);
+#endif
+ }
+}
+
+static void vitastor_co_read_cb(void *opaque, long retval, uint64_t version)
+{
+ vitastor_co_generic_bh_cb(opaque, retval);
+}
+
+static int coroutine_fn vitastor_co_preadv(BlockDriverState *bs, uint64_t offset, uint64_t bytes, QEMUIOVector *iov, int flags)
+{
+ VitastorClient *client = bs->opaque;
+ VitastorRPC task;
+ vitastor_co_init_task(bs, &task);
+ task.iov = iov;
+
+ uint64_t inode = client->watch ? vitastor_c_inode_get_num(client->watch) : client->inode;
+ qemu_mutex_lock(&client->mutex);
+ vitastor_c_read(client->proxy, inode, offset, bytes, iov->iov, iov->niov, vitastor_co_read_cb, &task);
+ qemu_mutex_unlock(&client->mutex);
+
+ while (!task.complete)
+ {
+ qemu_coroutine_yield();
+ }
+
+ return task.ret;
+}
+
+static int coroutine_fn vitastor_co_pwritev(BlockDriverState *bs, uint64_t offset, uint64_t bytes, QEMUIOVector *iov, int flags)
+{
+ VitastorClient *client = bs->opaque;
+ VitastorRPC task;
+ vitastor_co_init_task(bs, &task);
+ task.iov = iov;
+
+ uint64_t inode = client->watch ? vitastor_c_inode_get_num(client->watch) : client->inode;
+ qemu_mutex_lock(&client->mutex);
+ vitastor_c_write(client->proxy, inode, offset, bytes, 0, iov->iov, iov->niov, vitastor_co_generic_bh_cb, &task);
+ qemu_mutex_unlock(&client->mutex);
+
+ while (!task.complete)
+ {
+ qemu_coroutine_yield();
+ }
+
+ return task.ret;
+}
+
+#if !( QEMU_VERSION_MAJOR >= 3 || QEMU_VERSION_MAJOR == 2 && QEMU_VERSION_MINOR >= 7 )
+static int coroutine_fn vitastor_co_readv(BlockDriverState *bs, int64_t sector_num, int nb_sectors, QEMUIOVector *iov)
+{
+ return vitastor_co_preadv(bs, sector_num*BDRV_SECTOR_SIZE, nb_sectors*BDRV_SECTOR_SIZE, iov, 0);
+}
+
+static int coroutine_fn vitastor_co_writev(BlockDriverState *bs, int64_t sector_num, int nb_sectors, QEMUIOVector *iov)
+{
+ return vitastor_co_pwritev(bs, sector_num*BDRV_SECTOR_SIZE, nb_sectors*BDRV_SECTOR_SIZE, iov, 0);
+}
+#endif
+
+static int coroutine_fn vitastor_co_flush(BlockDriverState *bs)
+{
+ VitastorClient *client = bs->opaque;
+ VitastorRPC task;
+ vitastor_co_init_task(bs, &task);
+
+ qemu_mutex_lock(&client->mutex);
+ vitastor_c_sync(client->proxy, vitastor_co_generic_bh_cb, &task);
+ qemu_mutex_unlock(&client->mutex);
+
+ while (!task.complete)
+ {
+ qemu_coroutine_yield();
+ }
+
+ return task.ret;
+}
+
+#if QEMU_VERSION_MAJOR >= 3 || QEMU_VERSION_MAJOR == 2 && QEMU_VERSION_MINOR > 0
+static QemuOptsList vitastor_create_opts = {
+ .name = "vitastor-create-opts",
+ .head = QTAILQ_HEAD_INITIALIZER(vitastor_create_opts.head),
+ .desc = {
+ {
+ .name = BLOCK_OPT_SIZE,
+ .type = QEMU_OPT_SIZE,
+ .help = "Virtual disk size"
+ },
+ { /* end of list */ }
+ }
+};
+#else
+static QEMUOptionParameter vitastor_create_opts[] = {
+ {
+ .name = BLOCK_OPT_SIZE,
+ .type = OPT_SIZE,
+ .help = "Virtual disk size"
+ },
+ { NULL }
+};
+#endif
+
+#if QEMU_VERSION_MAJOR >= 4
+static const char *vitastor_strong_runtime_opts[] = {
+ "inode",
+ "pool",
+ "config-path",
+ "etcd-host",
+ "etcd-prefix",
+
+ NULL
+};
+#endif
+
+static BlockDriver bdrv_vitastor = {
+ .format_name = "vitastor",
+ .protocol_name = "vitastor",
+
+ .instance_size = sizeof(VitastorClient),
+ .bdrv_parse_filename = vitastor_parse_filename,
+
+ .bdrv_has_zero_init = bdrv_has_zero_init_1,
+ .bdrv_get_info = vitastor_get_info,
+ .bdrv_getlength = vitastor_getlength,
+#if QEMU_VERSION_MAJOR >= 3 || QEMU_VERSION_MAJOR == 2 && QEMU_VERSION_MINOR > 2
+ .bdrv_probe_blocksizes = vitastor_probe_blocksizes,
+#endif
+ .bdrv_refresh_limits = vitastor_refresh_limits,
+
+ // FIXME: Implement it along with per-inode statistics
+ //.bdrv_get_allocated_file_size = vitastor_get_allocated_file_size,
+
+ .bdrv_file_open = vitastor_file_open,
+ .bdrv_close = vitastor_close,
+
+ // Option list for the create operation
+#if QEMU_VERSION_MAJOR >= 3 || QEMU_VERSION_MAJOR == 2 && QEMU_VERSION_MINOR > 0
+ .create_opts = &vitastor_create_opts,
+#else
+ .create_options = vitastor_create_opts,
+#endif
+
+ // For qmp_blockdev_create(), used by the qemu monitor / QAPI
+ // Requires patching QAPI IDL, thus unimplemented
+ //.bdrv_co_create = vitastor_co_create,
+
+#if QEMU_VERSION_MAJOR >= 3 || QEMU_VERSION_MAJOR == 2 && QEMU_VERSION_MINOR >= 12
+ // For bdrv_create(), used by qemu-img
+ .bdrv_co_create_opts = vitastor_co_create_opts,
+#endif
+
+#if QEMU_VERSION_MAJOR >= 3
+ .bdrv_co_truncate = vitastor_co_truncate,
+#endif
+
+#if QEMU_VERSION_MAJOR >= 3 || QEMU_VERSION_MAJOR == 2 && QEMU_VERSION_MINOR >= 7
+ .bdrv_co_preadv = vitastor_co_preadv,
+ .bdrv_co_pwritev = vitastor_co_pwritev,
+#else
+ .bdrv_co_readv = vitastor_co_readv,
+ .bdrv_co_writev = vitastor_co_writev,
+#endif
+
+ .bdrv_co_flush_to_disk = vitastor_co_flush,
+
+#if QEMU_VERSION_MAJOR >= 4
+ .strong_runtime_opts = vitastor_strong_runtime_opts,
+#endif
+};
+
+static void vitastor_block_init(void)
+{
+ bdrv_register(&bdrv_vitastor);
+}
+
+block_init(vitastor_block_init);
Index: pve-qemu-kvm-5.1.0/block/Makefile.objs
===================================================================
--- pve-qemu-kvm-5.1.0.orig/block/Makefile.objs
+++ pve-qemu-kvm-5.1.0/block/Makefile.objs
@@ -32,6 +32,7 @@ block-obj-$(if $(CONFIG_LIBISCSI),y,n) +
block-obj-$(CONFIG_LIBNFS) += nfs.o
block-obj-$(CONFIG_CURL) += curl.o
block-obj-$(CONFIG_RBD) += rbd.o
+block-obj-$(CONFIG_VITASTOR) += vitastor.o
block-obj-$(CONFIG_GLUSTERFS) += gluster.o
block-obj-$(CONFIG_LIBSSH) += ssh.o
block-obj-y += backup-dump.o
@@ -61,6 +62,8 @@ curl.o-cflags := $(CURL_CFLAGS)
curl.o-libs := $(CURL_LIBS)
rbd.o-cflags := $(RBD_CFLAGS)
rbd.o-libs := $(RBD_LIBS)
+vitastor.o-cflags := $(VITASTOR_CFLAGS)
+vitastor.o-libs := $(VITASTOR_LIBS)
gluster.o-cflags := $(GLUSTERFS_CFLAGS)
gluster.o-libs := $(GLUSTERFS_LIBS)
ssh.o-cflags := $(LIBSSH_CFLAGS)

File diff suppressed because it is too large Load Diff

View File

@@ -14,10 +14,10 @@ Signed-off-by: Thomas Lamprecht <t.lamprecht@proxmox.com>
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/block/file-posix.c b/block/file-posix.c
index 35684f7e21..43bc0bd520 100644
index 9a00d4190a..bb72e1e5ca 100644
--- a/block/file-posix.c
+++ b/block/file-posix.c
@@ -563,7 +563,7 @@ static QemuOptsList raw_runtime_opts = {
@@ -508,7 +508,7 @@ static QemuOptsList raw_runtime_opts = {
{
.name = "locking",
.type = QEMU_OPT_STRING,
@@ -26,7 +26,7 @@ index 35684f7e21..43bc0bd520 100644
},
{
.name = "pr-manager",
@@ -663,7 +663,7 @@ static int raw_open_common(BlockDriverState *bs, QDict *options,
@@ -606,7 +606,7 @@ static int raw_open_common(BlockDriverState *bs, QDict *options,
s->use_lock = false;
break;
case ON_OFF_AUTO_AUTO:

View File

@@ -5,21 +5,22 @@ Subject: [PATCH] PVE: [Config] Adjust network script path to /etc/kvm/
Signed-off-by: Thomas Lamprecht <t.lamprecht@proxmox.com>
---
include/net/net.h | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
include/net/net.h | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a/include/net/net.h b/include/net/net.h
index b1f9b35fcc..096c0d52e4 100644
index e7ef42d62b..4fd1144e58 100644
--- a/include/net/net.h
+++ b/include/net/net.h
@@ -317,8 +317,8 @@ void netdev_add(QemuOpts *opts, Error **errp);
@@ -209,8 +209,9 @@ void netdev_add(QemuOpts *opts, Error **errp);
int net_hub_id_for_client(NetClientState *nc, int *id);
NetClientState *net_hub_port_find(int hub_id);
-#define DEFAULT_NETWORK_SCRIPT CONFIG_SYSCONFDIR "/qemu-ifup"
-#define DEFAULT_NETWORK_DOWN_SCRIPT CONFIG_SYSCONFDIR "/qemu-ifdown"
+#define DEFAULT_NETWORK_SCRIPT CONFIG_SYSCONFDIR "/kvm/kvm-ifup"
+#define DEFAULT_NETWORK_DOWN_SCRIPT CONFIG_SYSCONFDIR "/kvm/kvm-ifdown"
-#define DEFAULT_NETWORK_SCRIPT "/etc/qemu-ifup"
-#define DEFAULT_NETWORK_DOWN_SCRIPT "/etc/qemu-ifdown"
+#define DEFAULT_NETWORK_SCRIPT "/etc/kvm/kvm-ifup"
+#define DEFAULT_NETWORK_DOWN_SCRIPT "/etc/kvm/kvm-ifdown"
+
#define DEFAULT_BRIDGE_HELPER CONFIG_QEMU_HELPERDIR "/qemu-bridge-helper"
#define DEFAULT_BRIDGE_INTERFACE "br0"

View File

@@ -10,10 +10,10 @@ Signed-off-by: Thomas Lamprecht <t.lamprecht@proxmox.com>
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/target/i386/cpu.h b/target/i386/cpu.h
index 6b05738079..d82869900a 100644
index e1a5c174dc..8973d3160f 100644
--- a/target/i386/cpu.h
+++ b/target/i386/cpu.h
@@ -2291,9 +2291,9 @@ uint64_t cpu_get_tsc(CPUX86State *env);
@@ -1975,9 +1975,9 @@ uint64_t cpu_get_tsc(CPUX86State *env);
#define CPU_RESOLVING_TYPE TYPE_X86_CPU
#ifdef TARGET_X86_64
@@ -24,4 +24,4 @@ index 6b05738079..d82869900a 100644
+#define TARGET_DEFAULT_CPU_TYPE X86_CPU_TYPE_NAME("kvm32")
#endif
#define cpu_list x86_cpu_list
#define cpu_signal_handler cpu_x86_signal_handler

View File

@@ -9,10 +9,10 @@ Signed-off-by: Thomas Lamprecht <t.lamprecht@proxmox.com>
1 file changed, 9 insertions(+), 6 deletions(-)
diff --git a/ui/spice-core.c b/ui/spice-core.c
index 15be640286..ea20e6153c 100644
index ecc2ec2c55..ca04965ead 100644
--- a/ui/spice-core.c
+++ b/ui/spice-core.c
@@ -690,32 +690,35 @@ static void qemu_spice_init(void)
@@ -668,32 +668,35 @@ void qemu_spice_init(void)
if (tls_port) {
x509_dir = qemu_opt_get(opts, "x509-dir");

View File

@@ -0,0 +1,24 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Alexandre Derumier <aderumier@odiso.com>
Date: Mon, 6 Apr 2020 12:16:34 +0200
Subject: [PATCH] PVE: [Config] smm_available = false
Signed-off-by: Alexandre Derumier <aderumier@odiso.com>
Signed-off-by: Thomas Lamprecht <t.lamprecht@proxmox.com>
---
hw/i386/x86.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/hw/i386/x86.c b/hw/i386/x86.c
index 67bee1bcb8..d954bf77b9 100644
--- a/hw/i386/x86.c
+++ b/hw/i386/x86.c
@@ -856,7 +856,7 @@ bool x86_machine_is_smm_enabled(X86MachineState *x86ms)
if (tcg_enabled() || qtest_enabled()) {
smm_available = true;
} else if (kvm_enabled()) {
- smm_available = kvm_has_smm();
+ smm_available = false;
}
if (smm_available) {

View File

@@ -9,10 +9,10 @@ Signed-off-by: Thomas Lamprecht <t.lamprecht@proxmox.com>
1 file changed, 11 insertions(+), 4 deletions(-)
diff --git a/block/gluster.c b/block/gluster.c
index cc74af06dc..3ba9bbfa5e 100644
index 4f1448e2bc..715f06394c 100644
--- a/block/gluster.c
+++ b/block/gluster.c
@@ -43,7 +43,7 @@
@@ -42,7 +42,7 @@
#define GLUSTER_DEBUG_DEFAULT 4
#define GLUSTER_DEBUG_MAX 9
#define GLUSTER_OPT_LOGFILE "logfile"
@@ -21,15 +21,15 @@ index cc74af06dc..3ba9bbfa5e 100644
/*
* Several versions of GlusterFS (3.12? -> 6.0.1) fail when the transfer size
* is greater or equal to 1024 MiB, so we are limiting the transfer size to 512
@@ -425,6 +425,7 @@ static struct glfs *qemu_gluster_glfs_init(BlockdevOptionsGluster *gconf,
@@ -424,6 +424,7 @@ static struct glfs *qemu_gluster_glfs_init(BlockdevOptionsGluster *gconf,
int old_errno;
SocketAddressList *server;
uint64_t port;
unsigned long long port;
+ const char *logfile;
glfs = glfs_find_preopened(gconf->volume);
if (glfs) {
@@ -467,9 +468,15 @@ static struct glfs *qemu_gluster_glfs_init(BlockdevOptionsGluster *gconf,
@@ -466,9 +467,15 @@ static struct glfs *qemu_gluster_glfs_init(BlockdevOptionsGluster *gconf,
}
}

View File

@@ -18,10 +18,10 @@ Signed-off-by: Thomas Lamprecht <t.lamprecht@proxmox.com>
1 file changed, 2 insertions(+)
diff --git a/block/rbd.c b/block/rbd.c
index 84bb2fa5d7..63f60d41be 100644
index 688074c64b..8ae39abb46 100644
--- a/block/rbd.c
+++ b/block/rbd.c
@@ -963,6 +963,8 @@ static int qemu_rbd_connect(rados_t *cluster, rados_ioctx_t *io_ctx,
@@ -651,6 +651,8 @@ static int qemu_rbd_connect(rados_t *cluster, rados_ioctx_t *io_ctx,
rados_conf_set(*cluster, "rbd_cache", "false");
}

View File

@@ -0,0 +1,88 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Wolfgang Bumiller <w.bumiller@proxmox.com>
Date: Mon, 6 Apr 2020 12:16:37 +0200
Subject: [PATCH] PVE: [Up] qmp: add get_link_status
Signed-off-by: Thomas Lamprecht <t.lamprecht@proxmox.com>
---
net/net.c | 27 +++++++++++++++++++++++++++
qapi/net.json | 15 +++++++++++++++
qapi/pragma.json | 1 +
3 files changed, 43 insertions(+)
diff --git a/net/net.c b/net/net.c
index bbaedb3c7a..9de23ec834 100644
--- a/net/net.c
+++ b/net/net.c
@@ -1276,6 +1276,33 @@ void hmp_info_network(Monitor *mon, const QDict *qdict)
}
}
+int64_t qmp_get_link_status(const char *name, Error **errp)
+{
+ NetClientState *ncs[MAX_QUEUE_NUM];
+ NetClientState *nc;
+ int queues;
+ bool ret;
+
+ queues = qemu_find_net_clients_except(name, ncs,
+ NET_CLIENT_DRIVER__MAX,
+ MAX_QUEUE_NUM);
+
+ if (queues == 0) {
+ error_set(errp, ERROR_CLASS_DEVICE_NOT_FOUND,
+ "Device '%s' not found", name);
+ return (int64_t) -1;
+ }
+
+ nc = ncs[0];
+ ret = ncs[0]->link_down;
+
+ if (nc->peer->info->type == NET_CLIENT_DRIVER_NIC) {
+ ret = ncs[0]->peer->link_down;
+ }
+
+ return (int64_t) ret ? 0 : 1;
+}
+
void colo_notify_filters_event(int event, Error **errp)
{
NetClientState *nc;
diff --git a/qapi/net.json b/qapi/net.json
index ddb113e5e5..eb3b785984 100644
--- a/qapi/net.json
+++ b/qapi/net.json
@@ -35,6 +35,21 @@
##
{ 'command': 'set_link', 'data': {'name': 'str', 'up': 'bool'} }
+##
+# @get_link_status:
+#
+# Get the current link state of the nics or nic.
+#
+# @name: name of the nic you get the state of
+#
+# Return: If link is up 1
+# If link is down 0
+# If an error occure an empty string.
+#
+# Notes: this is an Proxmox VE extension and not offical part of Qemu.
+##
+{ 'command': 'get_link_status', 'data': {'name': 'str'} , 'returns': 'int' }
+
##
# @netdev_add:
#
diff --git a/qapi/pragma.json b/qapi/pragma.json
index cffae27666..5a3e3de95f 100644
--- a/qapi/pragma.json
+++ b/qapi/pragma.json
@@ -5,6 +5,7 @@
{ 'pragma': {
# Commands allowed to return a non-dictionary:
'returns-whitelist': [
+ 'get_link_status',
'human-monitor-command',
'qom-get',
'query-migrate-cache-size',

View File

@@ -16,10 +16,10 @@ Signed-off-by: Thomas Lamprecht <t.lamprecht@proxmox.com>
1 file changed, 9 insertions(+), 1 deletion(-)
diff --git a/block/gluster.c b/block/gluster.c
index 3ba9bbfa5e..34936eb855 100644
index 715f06394c..6d02170d9b 100644
--- a/block/gluster.c
+++ b/block/gluster.c
@@ -58,6 +58,7 @@ typedef struct GlusterAIOCB {
@@ -57,6 +57,7 @@ typedef struct GlusterAIOCB {
int ret;
Coroutine *coroutine;
AioContext *aio_context;
@@ -27,7 +27,7 @@ index 3ba9bbfa5e..34936eb855 100644
} GlusterAIOCB;
typedef struct BDRVGlusterState {
@@ -753,8 +754,10 @@ static void gluster_finish_aiocb(struct glfs_fd *fd, ssize_t ret,
@@ -759,8 +760,10 @@ static void gluster_finish_aiocb(struct glfs_fd *fd, ssize_t ret,
acb->ret = 0; /* Success */
} else if (ret < 0) {
acb->ret = -errno; /* Read/Write failed */
@@ -39,15 +39,15 @@ index 3ba9bbfa5e..34936eb855 100644
}
aio_co_schedule(acb->aio_context, acb->coroutine);
@@ -1023,6 +1026,7 @@ static coroutine_fn int qemu_gluster_co_pwrite_zeroes(BlockDriverState *bs,
@@ -1028,6 +1031,7 @@ static coroutine_fn int qemu_gluster_co_pwrite_zeroes(BlockDriverState *bs,
acb.ret = 0;
acb.coroutine = qemu_coroutine_self();
acb.aio_context = bdrv_get_aio_context(bs);
+ acb.is_write = true;
ret = glfs_zerofill_async(s->fd, offset, bytes, gluster_finish_aiocb, &acb);
ret = glfs_zerofill_async(s->fd, offset, size, gluster_finish_aiocb, &acb);
if (ret < 0) {
@@ -1203,9 +1207,11 @@ static coroutine_fn int qemu_gluster_co_rw(BlockDriverState *bs,
@@ -1209,9 +1213,11 @@ static coroutine_fn int qemu_gluster_co_rw(BlockDriverState *bs,
acb.aio_context = bdrv_get_aio_context(bs);
if (write) {
@@ -59,7 +59,7 @@ index 3ba9bbfa5e..34936eb855 100644
ret = glfs_preadv_async(s->fd, qiov->iov, qiov->niov, offset, 0,
gluster_finish_aiocb, &acb);
}
@@ -1268,6 +1274,7 @@ static coroutine_fn int qemu_gluster_co_flush_to_disk(BlockDriverState *bs)
@@ -1275,6 +1281,7 @@ static coroutine_fn int qemu_gluster_co_flush_to_disk(BlockDriverState *bs)
acb.ret = 0;
acb.coroutine = qemu_coroutine_self();
acb.aio_context = bdrv_get_aio_context(bs);
@@ -67,11 +67,11 @@ index 3ba9bbfa5e..34936eb855 100644
ret = glfs_fsync_async(s->fd, gluster_finish_aiocb, &acb);
if (ret < 0) {
@@ -1316,6 +1323,7 @@ static coroutine_fn int qemu_gluster_co_pdiscard(BlockDriverState *bs,
@@ -1321,6 +1328,7 @@ static coroutine_fn int qemu_gluster_co_pdiscard(BlockDriverState *bs,
acb.ret = 0;
acb.coroutine = qemu_coroutine_self();
acb.aio_context = bdrv_get_aio_context(bs);
+ acb.is_write = true;
ret = glfs_discard_async(s->fd, offset, bytes, gluster_finish_aiocb, &acb);
ret = glfs_discard_async(s->fd, offset, size, gluster_finish_aiocb, &acb);
if (ret < 0) {

View File

@@ -9,10 +9,10 @@ Signed-off-by: Thomas Lamprecht <t.lamprecht@proxmox.com>
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/qemu-img.c b/qemu-img.c
index 7668f86769..2575e97b43 100644
index 5308773811..45aa024acc 100644
--- a/qemu-img.c
+++ b/qemu-img.c
@@ -3075,7 +3075,8 @@ static int img_info(int argc, char **argv)
@@ -2955,7 +2955,8 @@ static int img_info(int argc, char **argv)
list = collect_image_info_list(image_opts, filename, fmt, chain,
force_share);
if (!list) {

View File

@@ -1,121 +0,0 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Alexandre Derumier <aderumier@odiso.com>
Date: Mon, 6 Apr 2020 12:16:42 +0200
Subject: [PATCH] PVE: [Up] qemu-img dd: add -n skip_create
Signed-off-by: Thomas Lamprecht <t.lamprecht@proxmox.com>
[FE: fix getopt-string + add documentation]
Signed-off-by: Fiona Ebner <f.ebner@proxmox.com>
---
docs/tools/qemu-img.rst | 11 ++++++++++-
qemu-img-cmds.hx | 4 ++--
qemu-img.c | 23 ++++++++++++++---------
3 files changed, 26 insertions(+), 12 deletions(-)
diff --git a/docs/tools/qemu-img.rst b/docs/tools/qemu-img.rst
index 3653adb963..d83e8fb3c0 100644
--- a/docs/tools/qemu-img.rst
+++ b/docs/tools/qemu-img.rst
@@ -212,6 +212,10 @@ Parameters to convert subcommand:
Parameters to dd subcommand:
+.. option:: -n
+
+ Skip the creation of the target volume
+
.. program:: qemu-img-dd
.. option:: bs=BLOCK_SIZE
@@ -492,7 +496,7 @@ Command description:
it doesn't need to be specified separately in this case.
-.. option:: dd [--image-opts] [-U] [-f FMT] [-O OUTPUT_FMT] [bs=BLOCK_SIZE] [count=BLOCKS] [skip=BLOCKS] if=INPUT of=OUTPUT
+.. option:: dd [--image-opts] [-U] [-f FMT] [-O OUTPUT_FMT] [-n] [bs=BLOCK_SIZE] [count=BLOCKS] [skip=BLOCKS] if=INPUT of=OUTPUT
dd copies from *INPUT* file to *OUTPUT* file converting it from
*FMT* format to *OUTPUT_FMT* format.
@@ -503,6 +507,11 @@ Command description:
The size syntax is similar to :manpage:`dd(1)`'s size syntax.
+ If the ``-n`` option is specified, the target volume creation will be
+ skipped. This is useful for formats such as ``rbd`` if the target
+ volume has already been created with site specific options that cannot
+ be supplied through ``qemu-img``.
+
.. option:: info [--object OBJECTDEF] [--image-opts] [-f FMT] [--output=OFMT] [--backing-chain] [-U] FILENAME
Give information about the disk image *FILENAME*. Use it in
diff --git a/qemu-img-cmds.hx b/qemu-img-cmds.hx
index 048788b23d..0b29a67a06 100644
--- a/qemu-img-cmds.hx
+++ b/qemu-img-cmds.hx
@@ -60,9 +60,9 @@ SRST
ERST
DEF("dd", img_dd,
- "dd [--image-opts] [-U] [-f fmt] [-O output_fmt] [bs=block_size] [count=blocks] [skip=blocks] [osize=output_size] if=input of=output")
+ "dd [--image-opts] [-U] [-f fmt] [-O output_fmt] [-n] [bs=block_size] [count=blocks] [skip=blocks] [osize=output_size] if=input of=output")
SRST
-.. option:: dd [--image-opts] [-U] [-f FMT] [-O OUTPUT_FMT] [bs=BLOCK_SIZE] [count=BLOCKS] [skip=BLOCKS] [osize=OUTPUT_SIZE] if=INPUT of=OUTPUT
+.. option:: dd [--image-opts] [-U] [-f FMT] [-O OUTPUT_FMT] [-n] [bs=BLOCK_SIZE] [count=BLOCKS] [skip=BLOCKS] [osize=OUTPUT_SIZE] if=INPUT of=OUTPUT
ERST
DEF("info", img_info,
diff --git a/qemu-img.c b/qemu-img.c
index b98184bba1..6fc8384f64 100644
--- a/qemu-img.c
+++ b/qemu-img.c
@@ -5118,7 +5118,7 @@ static int img_dd(int argc, char **argv)
const char *fmt = NULL;
int64_t size = 0, readsize = 0;
int64_t out_pos, in_pos;
- bool force_share = false;
+ bool force_share = false, skip_create = false;
struct DdInfo dd = {
.flags = 0,
.count = 0,
@@ -5156,7 +5156,7 @@ static int img_dd(int argc, char **argv)
{ 0, 0, 0, 0 }
};
- while ((c = getopt_long(argc, argv, ":hf:O:U", long_options, NULL))) {
+ while ((c = getopt_long(argc, argv, ":hf:O:Un", long_options, NULL))) {
if (c == EOF) {
break;
}
@@ -5176,6 +5176,9 @@ static int img_dd(int argc, char **argv)
case 'h':
help();
break;
+ case 'n':
+ skip_create = true;
+ break;
case 'U':
force_share = true;
break;
@@ -5306,13 +5309,15 @@ static int img_dd(int argc, char **argv)
size - in.bsz * in.offset, &error_abort);
}
- ret = bdrv_create(drv, out.filename, opts, &local_err);
- if (ret < 0) {
- error_reportf_err(local_err,
- "%s: error while creating output image: ",
- out.filename);
- ret = -1;
- goto out;
+ if (!skip_create) {
+ ret = bdrv_create(drv, out.filename, opts, &local_err);
+ if (ret < 0) {
+ error_reportf_err(local_err,
+ "%s: error while creating output image: ",
+ out.filename);
+ ret = -1;
+ goto out;
+ }
}
/* TODO, we can't honour --image-opts for the target,

View File

@@ -31,17 +31,16 @@ override the output file's size.
Signed-off-by: Wolfgang Bumiller <w.bumiller@proxmox.com>
Signed-off-by: Thomas Lamprecht <t.lamprecht@proxmox.com>
Signed-off-by: Fiona Ebner <f.ebner@proxmox.com>
---
qemu-img-cmds.hx | 4 +-
qemu-img.c | 202 ++++++++++++++++++++++++++++++-----------------
2 files changed, 133 insertions(+), 73 deletions(-)
qemu-img.c | 191 +++++++++++++++++++++++++++++------------------
2 files changed, 121 insertions(+), 74 deletions(-)
diff --git a/qemu-img-cmds.hx b/qemu-img-cmds.hx
index c9dd70a892..048788b23d 100644
index b89c019b76..91d18a4819 100644
--- a/qemu-img-cmds.hx
+++ b/qemu-img-cmds.hx
@@ -60,9 +60,9 @@ SRST
@@ -58,9 +58,9 @@ SRST
ERST
DEF("dd", img_dd,
@@ -54,10 +53,10 @@ index c9dd70a892..048788b23d 100644
DEF("info", img_info,
diff --git a/qemu-img.c b/qemu-img.c
index 2575e97b43..8ec68b346f 100644
index 45aa024acc..af54d0896e 100644
--- a/qemu-img.c
+++ b/qemu-img.c
@@ -4993,10 +4993,12 @@ static int img_bitmap(int argc, char **argv)
@@ -4819,10 +4819,12 @@ static int img_bitmap(int argc, char **argv)
#define C_IF 04
#define C_OF 010
#define C_SKIP 020
@@ -70,7 +69,7 @@ index 2575e97b43..8ec68b346f 100644
};
struct DdIo {
@@ -5072,6 +5074,19 @@ static int img_dd_skip(const char *arg,
@@ -4898,6 +4900,19 @@ static int img_dd_skip(const char *arg,
return 0;
}
@@ -90,7 +89,7 @@ index 2575e97b43..8ec68b346f 100644
static int img_dd(int argc, char **argv)
{
int ret = 0;
@@ -5112,6 +5127,7 @@ static int img_dd(int argc, char **argv)
@@ -4938,6 +4953,7 @@ static int img_dd(int argc, char **argv)
{ "if", img_dd_if, C_IF },
{ "of", img_dd_of, C_OF },
{ "skip", img_dd_skip, C_SKIP },
@@ -98,7 +97,7 @@ index 2575e97b43..8ec68b346f 100644
{ NULL, NULL, 0 }
};
const struct option long_options[] = {
@@ -5187,91 +5203,112 @@ static int img_dd(int argc, char **argv)
@@ -5016,8 +5032,13 @@ static int img_dd(int argc, char **argv)
arg = NULL;
}
@@ -106,30 +105,53 @@ index 2575e97b43..8ec68b346f 100644
- error_report("Must specify both input and output files");
+ if (!(dd.flags & C_IF) && (!fmt || strcmp(fmt, "raw") != 0)) {
+ error_report("Input format must be raw when readin from stdin");
ret = -1;
goto out;
}
-
- blk1 = img_open(image_opts, in.filename, fmt, 0, false, false,
- force_share);
-
- if (!blk1) {
+ ret = -1;
+ goto out;
+ }
+ if (!(dd.flags & C_OF) && strcmp(out_fmt, "raw") != 0) {
+ error_report("Output format must be raw when writing to stdout");
ret = -1;
goto out;
}
@@ -5029,85 +5050,101 @@ static int img_dd(int argc, char **argv)
goto out;
}
- blk1 = img_open(image_opts, in.filename, fmt, 0, false, false,
- force_share);
+ if (dd.flags & C_IF) {
+ blk1 = img_open(image_opts, in.filename, fmt, 0, false, false,
+ force_share);
- if (!blk1) {
- ret = -1;
- goto out;
+ if (!blk1) {
+ ret = -1;
+ goto out;
+ }
}
- drv = bdrv_find_format(out_fmt);
- if (!drv) {
- error_report("Unknown file format");
- ret = -1;
- goto out;
- }
+ if (dd.flags & C_OSIZE) {
+ size = dd.osize;
+ } else if (dd.flags & C_IF) {
+ size = blk_getlength(blk1);
+ if (size < 0) {
+ error_report("Failed to get size for '%s'", in.filename);
+ ret = -1;
+ goto out;
+ }
+ } else if (dd.flags & C_COUNT) {
+ size = dd.count * in.bsz;
+ } else {
+ error_report("Output size must be known when reading from stdin");
ret = -1;
goto out;
}
- proto_drv = bdrv_find_protocol(out.filename, true, &local_err);
+ if (dd.flags & C_IF) {
+ blk1 = img_open(image_opts, in.filename, fmt, 0, false, false,
+ force_share);
- if (!proto_drv) {
- error_report_err(local_err);
@@ -147,50 +169,14 @@ index 2575e97b43..8ec68b346f 100644
- proto_drv->format_name);
- ret = -1;
- goto out;
+ if (!blk1) {
+ ret = -1;
+ goto out;
+ }
+ if (!(dd.flags & C_OSIZE) && dd.flags & C_COUNT && dd.count <= INT64_MAX / in.bsz &&
+ dd.count * in.bsz < size) {
+ size = dd.count * in.bsz;
}
- create_opts = qemu_opts_append(create_opts, drv->create_opts);
- create_opts = qemu_opts_append(create_opts, proto_drv->create_opts);
-
- opts = qemu_opts_create(create_opts, NULL, 0, &error_abort);
- size = blk_getlength(blk1);
- if (size < 0) {
- error_report("Failed to get size for '%s'", in.filename);
+ if (dd.flags & C_OSIZE) {
+ size = dd.osize;
+ } else if (dd.flags & C_IF) {
+ size = blk_getlength(blk1);
+ if (size < 0) {
+ error_report("Failed to get size for '%s'", in.filename);
+ ret = -1;
+ goto out;
+ }
+ } else if (dd.flags & C_COUNT) {
+ size = dd.count * in.bsz;
+ } else {
+ error_report("Output size must be known when reading from stdin");
ret = -1;
goto out;
}
- if (dd.flags & C_COUNT && dd.count <= INT64_MAX / in.bsz &&
+ if (!(dd.flags & C_OSIZE) && dd.flags & C_COUNT && dd.count <= INT64_MAX / in.bsz &&
dd.count * in.bsz < size) {
size = dd.count * in.bsz;
}
- /* Overflow means the specified offset is beyond input image's size */
- if (dd.flags & C_SKIP && (in.offset > INT64_MAX / in.bsz ||
- size < in.bsz * in.offset)) {
- qemu_opt_set_number(opts, BLOCK_OPT_SIZE, 0, &error_abort);
- } else {
- qemu_opt_set_number(opts, BLOCK_OPT_SIZE,
- size - in.bsz * in.offset, &error_abort);
- }
+ if (dd.flags & C_OF) {
+ drv = bdrv_find_format(out_fmt);
+ if (!drv) {
@@ -200,11 +186,9 @@ index 2575e97b43..8ec68b346f 100644
+ }
+ proto_drv = bdrv_find_protocol(out.filename, true, &local_err);
- ret = bdrv_create(drv, out.filename, opts, &local_err);
- if (ret < 0) {
- error_reportf_err(local_err,
- "%s: error while creating output image: ",
- out.filename);
- size = blk_getlength(blk1);
- if (size < 0) {
- error_report("Failed to get size for '%s'", in.filename);
- ret = -1;
- goto out;
- }
@@ -228,18 +212,20 @@ index 2575e97b43..8ec68b346f 100644
+ create_opts = qemu_opts_append(create_opts, drv->create_opts);
+ create_opts = qemu_opts_append(create_opts, proto_drv->create_opts);
- /* TODO, we can't honour --image-opts for the target,
- * since it needs to be given in a format compatible
- * with the bdrv_create() call above which does not
- * support image-opts style.
- */
- blk2 = img_open_file(out.filename, NULL, out_fmt, BDRV_O_RDWR,
- false, false, false);
- if (dd.flags & C_COUNT && dd.count <= INT64_MAX / in.bsz &&
- dd.count * in.bsz < size) {
- size = dd.count * in.bsz;
- }
+ opts = qemu_opts_create(create_opts, NULL, 0, &error_abort);
- if (!blk2) {
- ret = -1;
- goto out;
- /* Overflow means the specified offset is beyond input image's size */
- if (dd.flags & C_SKIP && (in.offset > INT64_MAX / in.bsz ||
- size < in.bsz * in.offset)) {
- qemu_opt_set_number(opts, BLOCK_OPT_SIZE, 0, &error_abort);
- } else {
- qemu_opt_set_number(opts, BLOCK_OPT_SIZE,
- size - in.bsz * in.offset, &error_abort);
- }
+ /* Overflow means the specified offset is beyond input image's size */
+ if (dd.flags & C_OSIZE) {
+ qemu_opt_set_number(opts, BLOCK_OPT_SIZE, size, &error_abort);
@@ -250,7 +236,15 @@ index 2575e97b43..8ec68b346f 100644
+ qemu_opt_set_number(opts, BLOCK_OPT_SIZE,
+ size - in.bsz * in.offset, &error_abort);
+ }
+
- ret = bdrv_create(drv, out.filename, opts, &local_err);
- if (ret < 0) {
- error_reportf_err(local_err,
- "%s: error while creating output image: ",
- out.filename);
- ret = -1;
- goto out;
- }
+ ret = bdrv_create(drv, out.filename, opts, &local_err);
+ if (ret < 0) {
+ error_reportf_err(local_err,
@@ -259,7 +253,14 @@ index 2575e97b43..8ec68b346f 100644
+ ret = -1;
+ goto out;
+ }
+
- /* TODO, we can't honour --image-opts for the target,
- * since it needs to be given in a format compatible
- * with the bdrv_create() call above which does not
- * support image-opts style.
- */
- blk2 = img_open_file(out.filename, NULL, out_fmt, BDRV_O_RDWR,
- false, false, false);
+ /* TODO, we can't honour --image-opts for the target,
+ * since it needs to be given in a format compatible
+ * with the bdrv_create() call above which does not
@@ -267,7 +268,10 @@ index 2575e97b43..8ec68b346f 100644
+ */
+ blk2 = img_open_file(out.filename, NULL, out_fmt, BDRV_O_RDWR,
+ false, false, false);
+
- if (!blk2) {
- ret = -1;
- goto out;
+ if (!blk2) {
+ ret = -1;
+ goto out;
@@ -275,54 +279,41 @@ index 2575e97b43..8ec68b346f 100644
}
if (dd.flags & C_SKIP && (in.offset > INT64_MAX / in.bsz ||
@@ -5288,20 +5325,43 @@ static int img_dd(int argc, char **argv)
in.buf = g_new(uint8_t, in.bsz);
@@ -5125,11 +5162,17 @@ static int img_dd(int argc, char **argv)
for (out_pos = 0; in_pos < size; ) {
+ int in_ret, out_ret;
int bytes = (in_pos + in.bsz > size) ? size - in_pos : in.bsz;
for (out_pos = 0; in_pos < size; block_count++) {
int in_ret, out_ret;
-
- ret = blk_pread(blk1, in_pos, bytes, in.buf, 0);
- if (ret < 0) {
- if (in_pos + in.bsz > size) {
- in_ret = blk_pread(blk1, in_pos, in.buf, size - in_pos);
+ size_t in_bsz = in_pos + in.bsz > size ? size - in_pos : in.bsz;
+ if (blk1) {
+ in_ret = blk_pread(blk1, in_pos, bytes, in.buf, 0);
+ if (in_ret == 0) {
+ in_ret = bytes;
+ }
+ } else {
+ in_ret = read(STDIN_FILENO, in.buf, bytes);
+ in_ret = blk_pread(blk1, in_pos, in.buf, in_bsz);
} else {
- in_ret = blk_pread(blk1, in_pos, in.buf, in.bsz);
+ in_ret = read(STDIN_FILENO, in.buf, in_bsz);
+ if (in_ret == 0) {
+ /* early EOF is considered an error */
+ error_report("Input ended unexpectedly");
+ ret = -1;
+ goto out;
+ }
+ }
+ if (in_ret < 0) {
error_report("error while reading from input image file: %s",
- strerror(-ret));
+ strerror(-in_ret));
+ ret = -1;
goto out;
}
in_pos += bytes;
if (in_ret < 0) {
error_report("error while reading from input image file: %s",
@@ -5139,9 +5182,13 @@ static int img_dd(int argc, char **argv)
}
in_pos += in_ret;
- ret = blk_pwrite(blk2, out_pos, bytes, in.buf, 0);
- if (ret < 0) {
- out_ret = blk_pwrite(blk2, out_pos, in.buf, in_ret, 0);
+ if (blk2) {
+ out_ret = blk_pwrite(blk2, out_pos, in_ret, in.buf, 0);
+ if (out_ret == 0) {
+ out_ret = in_ret;
+ }
+ out_ret = blk_pwrite(blk2, out_pos, in.buf, in_ret, 0);
+ } else {
+ out_ret = write(STDOUT_FILENO, in.buf, in_ret);
+ }
+
- if (out_ret < 0) {
+ if (out_ret != in_ret) {
error_report("error while writing to output image file: %s",
- strerror(-ret));
+ strerror(-out_ret));
+ ret = -1;
goto out;
}
out_pos += bytes;
strerror(-out_ret));
ret = -1;

View File

@@ -10,16 +10,15 @@ an expected end of input.
Signed-off-by: Wolfgang Bumiller <w.bumiller@proxmox.com>
Signed-off-by: Thomas Lamprecht <t.lamprecht@proxmox.com>
Signed-off-by: Fiona Ebner <f.ebner@proxmox.com>
---
qemu-img.c | 28 +++++++++++++++++++++++++---
1 file changed, 25 insertions(+), 3 deletions(-)
diff --git a/qemu-img.c b/qemu-img.c
index 8ec68b346f..b98184bba1 100644
index af54d0896e..0f1d464392 100644
--- a/qemu-img.c
+++ b/qemu-img.c
@@ -4994,11 +4994,13 @@ static int img_bitmap(int argc, char **argv)
@@ -4820,11 +4820,13 @@ static int img_bitmap(int argc, char **argv)
#define C_OF 010
#define C_SKIP 020
#define C_OSIZE 040
@@ -33,7 +32,7 @@ index 8ec68b346f..b98184bba1 100644
};
struct DdIo {
@@ -5087,6 +5089,19 @@ static int img_dd_osize(const char *arg,
@@ -4913,6 +4915,19 @@ static int img_dd_osize(const char *arg,
return 0;
}
@@ -53,13 +52,13 @@ index 8ec68b346f..b98184bba1 100644
static int img_dd(int argc, char **argv)
{
int ret = 0;
@@ -5101,12 +5116,14 @@ static int img_dd(int argc, char **argv)
@@ -4927,12 +4942,14 @@ static int img_dd(int argc, char **argv)
int c, i;
const char *out_fmt = "raw";
const char *fmt = NULL;
- int64_t size = 0;
+ int64_t size = 0, readsize = 0;
int64_t out_pos, in_pos;
int64_t block_count = 0, out_pos, in_pos;
bool force_share = false;
struct DdInfo dd = {
.flags = 0,
@@ -69,7 +68,7 @@ index 8ec68b346f..b98184bba1 100644
};
struct DdIo in = {
.bsz = 512, /* Block size is by default 512 bytes */
@@ -5128,6 +5145,7 @@ static int img_dd(int argc, char **argv)
@@ -4954,6 +4971,7 @@ static int img_dd(int argc, char **argv)
{ "of", img_dd_of, C_OF },
{ "skip", img_dd_skip, C_SKIP },
{ "osize", img_dd_osize, C_OSIZE },
@@ -77,22 +76,20 @@ index 8ec68b346f..b98184bba1 100644
{ NULL, NULL, 0 }
};
const struct option long_options[] = {
@@ -5324,9 +5342,10 @@ static int img_dd(int argc, char **argv)
@@ -5160,14 +5178,18 @@ static int img_dd(int argc, char **argv)
in.buf = g_new(uint8_t, in.bsz);
- for (out_pos = 0; in_pos < size; ) {
- for (out_pos = 0; in_pos < size; block_count++) {
+ readsize = (dd.isize > 0) ? dd.isize : size;
+ for (out_pos = 0; in_pos < readsize; ) {
+ for (out_pos = 0; in_pos < readsize; block_count++) {
int in_ret, out_ret;
- int bytes = (in_pos + in.bsz > size) ? size - in_pos : in.bsz;
+ int bytes = (in_pos + in.bsz > readsize) ? readsize - in_pos : in.bsz;
- size_t in_bsz = in_pos + in.bsz > size ? size - in_pos : in.bsz;
+ size_t in_bsz = in_pos + in.bsz > readsize ? readsize - in_pos : in.bsz;
if (blk1) {
in_ret = blk_pread(blk1, in_pos, bytes, in.buf, 0);
if (in_ret == 0) {
@@ -5335,6 +5354,9 @@ static int img_dd(int argc, char **argv)
in_ret = blk_pread(blk1, in_pos, in.buf, in_bsz);
} else {
in_ret = read(STDIN_FILENO, in.buf, bytes);
in_ret = read(STDIN_FILENO, in.buf, in_bsz);
if (in_ret == 0) {
+ if (dd.isize == 0) {
+ goto out;

View File

@@ -1,130 +0,0 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Fabian Ebner <f.ebner@proxmox.com>
Date: Mon, 7 Feb 2022 14:21:01 +0100
Subject: [PATCH] qemu-img dd: add -l option for loading a snapshot
Signed-off-by: Fiona Ebner <f.ebner@proxmox.com>
Signed-off-by: Thomas Lamprecht <t.lamprecht@proxmox.com>
---
docs/tools/qemu-img.rst | 6 +++---
qemu-img-cmds.hx | 4 ++--
qemu-img.c | 33 +++++++++++++++++++++++++++++++--
3 files changed, 36 insertions(+), 7 deletions(-)
diff --git a/docs/tools/qemu-img.rst b/docs/tools/qemu-img.rst
index d83e8fb3c0..61c6b21859 100644
--- a/docs/tools/qemu-img.rst
+++ b/docs/tools/qemu-img.rst
@@ -496,10 +496,10 @@ Command description:
it doesn't need to be specified separately in this case.
-.. option:: dd [--image-opts] [-U] [-f FMT] [-O OUTPUT_FMT] [-n] [bs=BLOCK_SIZE] [count=BLOCKS] [skip=BLOCKS] if=INPUT of=OUTPUT
+.. option:: dd [--image-opts] [-U] [-f FMT] [-O OUTPUT_FMT] [-n] [-l SNAPSHOT_PARAM] [bs=BLOCK_SIZE] [count=BLOCKS] [skip=BLOCKS] if=INPUT of=OUTPUT
- dd copies from *INPUT* file to *OUTPUT* file converting it from
- *FMT* format to *OUTPUT_FMT* format.
+ dd copies from *INPUT* file or snapshot *SNAPSHOT_PARAM* to *OUTPUT* file
+ converting it from *FMT* format to *OUTPUT_FMT* format.
The data is by default read and written using blocks of 512 bytes but can be
modified by specifying *BLOCK_SIZE*. If count=\ *BLOCKS* is specified
diff --git a/qemu-img-cmds.hx b/qemu-img-cmds.hx
index 0b29a67a06..758f397232 100644
--- a/qemu-img-cmds.hx
+++ b/qemu-img-cmds.hx
@@ -60,9 +60,9 @@ SRST
ERST
DEF("dd", img_dd,
- "dd [--image-opts] [-U] [-f fmt] [-O output_fmt] [-n] [bs=block_size] [count=blocks] [skip=blocks] [osize=output_size] if=input of=output")
+ "dd [--image-opts] [-U] [-f fmt] [-O output_fmt] [-n] [-l snapshot_param] [bs=block_size] [count=blocks] [skip=blocks] [osize=output_size] if=input of=output")
SRST
-.. option:: dd [--image-opts] [-U] [-f FMT] [-O OUTPUT_FMT] [-n] [bs=BLOCK_SIZE] [count=BLOCKS] [skip=BLOCKS] [osize=OUTPUT_SIZE] if=INPUT of=OUTPUT
+.. option:: dd [--image-opts] [-U] [-f FMT] [-O OUTPUT_FMT] [-n] [-l SNAPSHOT_PARAM] [bs=BLOCK_SIZE] [count=BLOCKS] [skip=BLOCKS] [osize=OUTPUT_SIZE] if=INPUT of=OUTPUT
ERST
DEF("info", img_info,
diff --git a/qemu-img.c b/qemu-img.c
index 6fc8384f64..a6c88e0860 100644
--- a/qemu-img.c
+++ b/qemu-img.c
@@ -5110,6 +5110,7 @@ static int img_dd(int argc, char **argv)
BlockDriver *drv = NULL, *proto_drv = NULL;
BlockBackend *blk1 = NULL, *blk2 = NULL;
QemuOpts *opts = NULL;
+ QemuOpts *sn_opts = NULL;
QemuOptsList *create_opts = NULL;
Error *local_err = NULL;
bool image_opts = false;
@@ -5119,6 +5120,7 @@ static int img_dd(int argc, char **argv)
int64_t size = 0, readsize = 0;
int64_t out_pos, in_pos;
bool force_share = false, skip_create = false;
+ const char *snapshot_name = NULL;
struct DdInfo dd = {
.flags = 0,
.count = 0,
@@ -5156,7 +5158,7 @@ static int img_dd(int argc, char **argv)
{ 0, 0, 0, 0 }
};
- while ((c = getopt_long(argc, argv, ":hf:O:Un", long_options, NULL))) {
+ while ((c = getopt_long(argc, argv, ":hf:O:l:Un", long_options, NULL))) {
if (c == EOF) {
break;
}
@@ -5179,6 +5181,19 @@ static int img_dd(int argc, char **argv)
case 'n':
skip_create = true;
break;
+ case 'l':
+ if (strstart(optarg, SNAPSHOT_OPT_BASE, NULL)) {
+ sn_opts = qemu_opts_parse_noisily(&internal_snapshot_opts,
+ optarg, false);
+ if (!sn_opts) {
+ error_report("Failed in parsing snapshot param '%s'",
+ optarg);
+ goto out;
+ }
+ } else {
+ snapshot_name = optarg;
+ }
+ break;
case 'U':
force_share = true;
break;
@@ -5238,11 +5253,24 @@ static int img_dd(int argc, char **argv)
if (dd.flags & C_IF) {
blk1 = img_open(image_opts, in.filename, fmt, 0, false, false,
force_share);
-
if (!blk1) {
ret = -1;
goto out;
}
+ if (sn_opts) {
+ bdrv_snapshot_load_tmp(blk_bs(blk1),
+ qemu_opt_get(sn_opts, SNAPSHOT_OPT_ID),
+ qemu_opt_get(sn_opts, SNAPSHOT_OPT_NAME),
+ &local_err);
+ } else if (snapshot_name != NULL) {
+ bdrv_snapshot_load_tmp_by_id_or_name(blk_bs(blk1), snapshot_name,
+ &local_err);
+ }
+ if (local_err) {
+ error_reportf_err(local_err, "Failed to load snapshot: ");
+ ret = -1;
+ goto out;
+ }
}
if (dd.flags & C_OSIZE) {
@@ -5397,6 +5425,7 @@ static int img_dd(int argc, char **argv)
out:
g_free(arg);
qemu_opts_del(opts);
+ qemu_opts_del(sn_opts);
qemu_opts_free(create_opts);
blk_unref(blk1);
blk_unref(blk2);

View File

@@ -0,0 +1,65 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Alexandre Derumier <aderumier@odiso.com>
Date: Mon, 6 Apr 2020 12:16:42 +0200
Subject: [PATCH] PVE: [Up] qemu-img dd: add -n skip_create
Signed-off-by: Thomas Lamprecht <t.lamprecht@proxmox.com>
---
qemu-img.c | 23 ++++++++++++++---------
1 file changed, 14 insertions(+), 9 deletions(-)
diff --git a/qemu-img.c b/qemu-img.c
index 0f1d464392..9635e9c001 100644
--- a/qemu-img.c
+++ b/qemu-img.c
@@ -4944,7 +4944,7 @@ static int img_dd(int argc, char **argv)
const char *fmt = NULL;
int64_t size = 0, readsize = 0;
int64_t block_count = 0, out_pos, in_pos;
- bool force_share = false;
+ bool force_share = false, skip_create = false;
struct DdInfo dd = {
.flags = 0,
.count = 0,
@@ -4982,7 +4982,7 @@ static int img_dd(int argc, char **argv)
{ 0, 0, 0, 0 }
};
- while ((c = getopt_long(argc, argv, ":hf:O:U", long_options, NULL))) {
+ while ((c = getopt_long(argc, argv, ":hf:O:U:n", long_options, NULL))) {
if (c == EOF) {
break;
}
@@ -5002,6 +5002,9 @@ static int img_dd(int argc, char **argv)
case 'h':
help();
break;
+ case 'n':
+ skip_create = true;
+ break;
case 'U':
force_share = true;
break;
@@ -5142,13 +5145,15 @@ static int img_dd(int argc, char **argv)
size - in.bsz * in.offset, &error_abort);
}
- ret = bdrv_create(drv, out.filename, opts, &local_err);
- if (ret < 0) {
- error_reportf_err(local_err,
- "%s: error while creating output image: ",
- out.filename);
- ret = -1;
- goto out;
+ if (!skip_create) {
+ ret = bdrv_create(drv, out.filename, opts, &local_err);
+ if (ret < 0) {
+ error_reportf_err(local_err,
+ "%s: error while creating output image: ",
+ out.filename);
+ ret = -1;
+ goto out;
+ }
}
/* TODO, we can't honour --image-opts for the target,

View File

@@ -7,62 +7,17 @@ Actually provide memory information via the query-balloon
command.
Signed-off-by: Thomas Lamprecht <t.lamprecht@proxmox.com>
[FE: add BalloonInfo to member name exceptions list
rebase for 8.0 - moved to hw/core/machine-hmp-cmds.c]
Signed-off-by: Fiona Ebner <f.ebner@proxmox.com>
---
hw/core/machine-hmp-cmds.c | 30 +++++++++++++++++++++++++++++-
hw/virtio/virtio-balloon.c | 33 +++++++++++++++++++++++++++++++--
qapi/machine.json | 22 +++++++++++++++++++++-
qapi/pragma.json | 1 +
4 files changed, 82 insertions(+), 4 deletions(-)
monitor/hmp-cmds.c | 30 +++++++++++++++++++++++++++++-
qapi/misc.json | 22 +++++++++++++++++++++-
3 files changed, 81 insertions(+), 4 deletions(-)
diff --git a/hw/core/machine-hmp-cmds.c b/hw/core/machine-hmp-cmds.c
index a6ff6a4875..e7f74d1c63 100644
--- a/hw/core/machine-hmp-cmds.c
+++ b/hw/core/machine-hmp-cmds.c
@@ -175,7 +175,35 @@ void hmp_info_balloon(Monitor *mon, const QDict *qdict)
return;
}
- monitor_printf(mon, "balloon: actual=%" PRId64 "\n", info->actual >> 20);
+ monitor_printf(mon, "balloon: actual=%" PRId64, info->actual >> 20);
+ monitor_printf(mon, " max_mem=%" PRId64, info->max_mem >> 20);
+ if (info->has_total_mem) {
+ monitor_printf(mon, " total_mem=%" PRId64, info->total_mem >> 20);
+ }
+ if (info->has_free_mem) {
+ monitor_printf(mon, " free_mem=%" PRId64, info->free_mem >> 20);
+ }
+
+ if (info->has_mem_swapped_in) {
+ monitor_printf(mon, " mem_swapped_in=%" PRId64, info->mem_swapped_in);
+ }
+ if (info->has_mem_swapped_out) {
+ monitor_printf(mon, " mem_swapped_out=%" PRId64, info->mem_swapped_out);
+ }
+ if (info->has_major_page_faults) {
+ monitor_printf(mon, " major_page_faults=%" PRId64,
+ info->major_page_faults);
+ }
+ if (info->has_minor_page_faults) {
+ monitor_printf(mon, " minor_page_faults=%" PRId64,
+ info->minor_page_faults);
+ }
+ if (info->has_last_update) {
+ monitor_printf(mon, " last_update=%" PRId64,
+ info->last_update);
+ }
+
+ monitor_printf(mon, "\n");
qapi_free_BalloonInfo(info);
}
diff --git a/hw/virtio/virtio-balloon.c b/hw/virtio/virtio-balloon.c
index 609e39a821..8cb6dfcac3 100644
index 22cb5df717..6513adb0a6 100644
--- a/hw/virtio/virtio-balloon.c
+++ b/hw/virtio/virtio-balloon.c
@@ -781,8 +781,37 @@ static uint64_t virtio_balloon_get_features(VirtIODevice *vdev, uint64_t f,
@@ -805,8 +805,37 @@ static uint64_t virtio_balloon_get_features(VirtIODevice *vdev, uint64_t f,
static void virtio_balloon_stat(void *opaque, BalloonInfo *info)
{
VirtIOBalloon *dev = opaque;
@@ -102,13 +57,54 @@ index 609e39a821..8cb6dfcac3 100644
}
static void virtio_balloon_to_target(void *opaque, ram_addr_t target)
diff --git a/qapi/machine.json b/qapi/machine.json
index e8b60641f2..2054cdc70d 100644
--- a/qapi/machine.json
+++ b/qapi/machine.json
@@ -1079,9 +1079,29 @@
# @actual: the logical size of the VM in bytes Formula used:
# logical_vm_size = vm_ram_size - balloon_size
diff --git a/monitor/hmp-cmds.c b/monitor/hmp-cmds.c
index ae4b6a4246..6e26ea2cd0 100644
--- a/monitor/hmp-cmds.c
+++ b/monitor/hmp-cmds.c
@@ -660,7 +660,35 @@ void hmp_info_balloon(Monitor *mon, const QDict *qdict)
return;
}
- monitor_printf(mon, "balloon: actual=%" PRId64 "\n", info->actual >> 20);
+ monitor_printf(mon, "balloon: actual=%" PRId64, info->actual >> 20);
+ monitor_printf(mon, " max_mem=%" PRId64, info->max_mem >> 20);
+ if (info->has_total_mem) {
+ monitor_printf(mon, " total_mem=%" PRId64, info->total_mem >> 20);
+ }
+ if (info->has_free_mem) {
+ monitor_printf(mon, " free_mem=%" PRId64, info->free_mem >> 20);
+ }
+
+ if (info->has_mem_swapped_in) {
+ monitor_printf(mon, " mem_swapped_in=%" PRId64, info->mem_swapped_in);
+ }
+ if (info->has_mem_swapped_out) {
+ monitor_printf(mon, " mem_swapped_out=%" PRId64, info->mem_swapped_out);
+ }
+ if (info->has_major_page_faults) {
+ monitor_printf(mon, " major_page_faults=%" PRId64,
+ info->major_page_faults);
+ }
+ if (info->has_minor_page_faults) {
+ monitor_printf(mon, " minor_page_faults=%" PRId64,
+ info->minor_page_faults);
+ }
+ if (info->has_last_update) {
+ monitor_printf(mon, " last_update=%" PRId64,
+ info->last_update);
+ }
+
+ monitor_printf(mon, "\n");
qapi_free_BalloonInfo(info);
}
diff --git a/qapi/misc.json b/qapi/misc.json
index 9d32820dc1..44b1fb6fa7 100644
--- a/qapi/misc.json
+++ b/qapi/misc.json
@@ -226,10 +226,30 @@
#
# @actual: the number of bytes the balloon currently contains
#
+# @last_update: time when stats got updated from guest
+#
@@ -126,7 +122,8 @@ index e8b60641f2..2054cdc70d 100644
+#
+# @max_mem: amount of memory (in bytes) assigned to the guest
+#
# Since: 0.14
# Since: 0.14.0
#
##
-{ 'struct': 'BalloonInfo', 'data': {'actual': 'int' } }
+{ 'struct': 'BalloonInfo',
@@ -137,15 +134,3 @@ index e8b60641f2..2054cdc70d 100644
##
# @query-balloon:
diff --git a/qapi/pragma.json b/qapi/pragma.json
index 59fbe74b8c..be8fa304c5 100644
--- a/qapi/pragma.json
+++ b/qapi/pragma.json
@@ -90,6 +90,7 @@
'member-name-exceptions': [ # visible in:
'ACPISlotType', # query-acpi-ospm-status
'AcpiTableOptions', # -acpitable
+ 'BalloonInfo', # query-balloon
'BlkdebugEvent', # blockdev-add, -blockdev
'BlkdebugSetStateOptions', # blockdev-add, -blockdev
'BlockDeviceInfo', # query-block

View File

@@ -13,13 +13,13 @@ Signed-off-by: Dietmar Maurer <dietmar@proxmox.com>
2 files changed, 9 insertions(+), 1 deletion(-)
diff --git a/hw/core/machine-qmp-cmds.c b/hw/core/machine-qmp-cmds.c
index 4b72009cd3..314351cdff 100644
index 963088b798..32f630549e 100644
--- a/hw/core/machine-qmp-cmds.c
+++ b/hw/core/machine-qmp-cmds.c
@@ -90,6 +90,12 @@ MachineInfoList *qmp_query_machines(Error **errp)
@@ -234,6 +234,12 @@ MachineInfoList *qmp_query_machines(Error **errp)
info->hotpluggable_cpus = mc->has_hotpluggable_cpus;
info->numa_mem_supported = mc->numa_mem_supported;
info->deprecated = !!mc->deprecation_reason;
info->acpi = !!object_class_property_find(OBJECT_CLASS(mc), "acpi");
+
+ if (strcmp(mc->name, MACHINE_GET_CLASS(current_machine)->name) == 0) {
+ info->has_is_current = true;
@@ -28,26 +28,26 @@ index 4b72009cd3..314351cdff 100644
+
if (mc->default_cpu_type) {
info->default_cpu_type = g_strdup(mc->default_cpu_type);
}
info->has_default_cpu_type = true;
diff --git a/qapi/machine.json b/qapi/machine.json
index 2054cdc70d..a024d5b05d 100644
index 481b1f07ec..268044a34b 100644
--- a/qapi/machine.json
+++ b/qapi/machine.json
@@ -146,6 +146,8 @@
@@ -342,6 +342,8 @@
#
# @is-default: whether the machine is default
#
+# @is-current: whether this machine is currently used
+#
# @cpu-max: maximum number of CPUs supported by the machine type
# (since 1.5)
# (since 1.5.0)
#
@@ -170,7 +172,7 @@
@@ -361,7 +363,7 @@
##
{ 'struct': 'MachineInfo',
'data': { 'name': 'str', '*alias': 'str',
- '*is-default': 'bool', 'cpu-max': 'int',
+ '*is-default': 'bool', '*is-current': 'bool', 'cpu-max': 'int',
'hotpluggable-cpus': 'bool', 'numa-mem-supported': 'bool',
'deprecated': 'bool', '*default-cpu-type': 'str',
'*default-ram-id': 'str', 'acpi': 'bool' } }
'deprecated': 'bool', '*default-cpu-type': 'str' } }

View File

@@ -1,284 +0,0 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Fiona Ebner <f.ebner@proxmox.com>
Date: Thu, 13 Oct 2022 11:33:50 +0200
Subject: [PATCH] PVE: add IOChannel implementation for savevm-async
based on migration/channel-block.c and the implementation that was
present in migration/savevm-async.c before QEMU 7.1.
Passes along read/write requests to the given BlockBackend, while
ensuring that a read request going beyond the end results in a
graceful short read.
Additionally, allows tracking the current position from the outside
(intended to be used for progress tracking).
Signed-off-by: Fiona Ebner <f.ebner@proxmox.com>
Signed-off-by: Thomas Lamprecht <t.lamprecht@proxmox.com>
---
migration/channel-savevm-async.c | 184 +++++++++++++++++++++++++++++++
migration/channel-savevm-async.h | 51 +++++++++
migration/meson.build | 1 +
3 files changed, 236 insertions(+)
create mode 100644 migration/channel-savevm-async.c
create mode 100644 migration/channel-savevm-async.h
diff --git a/migration/channel-savevm-async.c b/migration/channel-savevm-async.c
new file mode 100644
index 0000000000..081a192f49
--- /dev/null
+++ b/migration/channel-savevm-async.c
@@ -0,0 +1,184 @@
+/*
+ * QIO Channel implementation to be used by savevm-async QMP calls
+ */
+#include "qemu/osdep.h"
+#include "migration/channel-savevm-async.h"
+#include "qapi/error.h"
+#include "sysemu/block-backend.h"
+#include "trace.h"
+
+QIOChannelSavevmAsync *
+qio_channel_savevm_async_new(BlockBackend *be, size_t *bs_pos)
+{
+ QIOChannelSavevmAsync *ioc;
+
+ ioc = QIO_CHANNEL_SAVEVM_ASYNC(object_new(TYPE_QIO_CHANNEL_SAVEVM_ASYNC));
+
+ bdrv_ref(blk_bs(be));
+ ioc->be = be;
+ ioc->bs_pos = bs_pos;
+
+ return ioc;
+}
+
+
+static void
+qio_channel_savevm_async_finalize(Object *obj)
+{
+ QIOChannelSavevmAsync *ioc = QIO_CHANNEL_SAVEVM_ASYNC(obj);
+
+ if (ioc->be) {
+ bdrv_unref(blk_bs(ioc->be));
+ ioc->be = NULL;
+ }
+ ioc->bs_pos = NULL;
+}
+
+
+static ssize_t
+qio_channel_savevm_async_readv(QIOChannel *ioc,
+ const struct iovec *iov,
+ size_t niov,
+ int **fds,
+ size_t *nfds,
+ int flags,
+ Error **errp)
+{
+ QIOChannelSavevmAsync *saioc = QIO_CHANNEL_SAVEVM_ASYNC(ioc);
+ BlockBackend *be = saioc->be;
+ int64_t maxlen = blk_getlength(be);
+ QEMUIOVector qiov;
+ size_t size;
+ int ret;
+
+ qemu_iovec_init_external(&qiov, (struct iovec *)iov, niov);
+
+ if (*saioc->bs_pos >= maxlen) {
+ error_setg(errp, "cannot read beyond maxlen");
+ return -1;
+ }
+
+ if (maxlen - *saioc->bs_pos < qiov.size) {
+ size = maxlen - *saioc->bs_pos;
+ } else {
+ size = qiov.size;
+ }
+
+ // returns 0 on success
+ ret = blk_preadv(be, *saioc->bs_pos, size, &qiov, 0);
+ if (ret < 0) {
+ error_setg_errno(errp, -ret, "blk_preadv failed");
+ return -1;
+ }
+
+ *saioc->bs_pos += size;
+ return size;
+}
+
+
+static ssize_t
+qio_channel_savevm_async_writev(QIOChannel *ioc,
+ const struct iovec *iov,
+ size_t niov,
+ int *fds,
+ size_t nfds,
+ int flags,
+ Error **errp)
+{
+ QIOChannelSavevmAsync *saioc = QIO_CHANNEL_SAVEVM_ASYNC(ioc);
+ BlockBackend *be = saioc->be;
+ QEMUIOVector qiov;
+ int ret;
+
+ qemu_iovec_init_external(&qiov, (struct iovec *)iov, niov);
+
+ if (qemu_in_coroutine()) {
+ ret = blk_co_pwritev(be, *saioc->bs_pos, qiov.size, &qiov, 0);
+ aio_wait_kick();
+ } else {
+ ret = blk_pwritev(be, *saioc->bs_pos, qiov.size, &qiov, 0);
+ }
+
+ if (ret < 0) {
+ error_setg_errno(errp, -ret, "blk(_co)_pwritev failed");
+ return -1;
+ }
+
+ *saioc->bs_pos += qiov.size;
+ return qiov.size;
+}
+
+
+static int
+qio_channel_savevm_async_set_blocking(QIOChannel *ioc,
+ bool enabled,
+ Error **errp)
+{
+ if (!enabled) {
+ error_setg(errp, "Non-blocking mode not supported for savevm-async");
+ return -1;
+ }
+ return 0;
+}
+
+
+static int
+qio_channel_savevm_async_close(QIOChannel *ioc,
+ Error **errp)
+{
+ QIOChannelSavevmAsync *saioc = QIO_CHANNEL_SAVEVM_ASYNC(ioc);
+ int rv = bdrv_flush(blk_bs(saioc->be));
+
+ if (rv < 0) {
+ error_setg_errno(errp, -rv, "Unable to flush VMState");
+ return -1;
+ }
+
+ bdrv_unref(blk_bs(saioc->be));
+ saioc->be = NULL;
+ saioc->bs_pos = NULL;
+
+ return 0;
+}
+
+
+static void
+qio_channel_savevm_async_set_aio_fd_handler(QIOChannel *ioc,
+ AioContext *read_ctx,
+ IOHandler *io_read,
+ AioContext *write_ctx,
+ IOHandler *io_write,
+ void *opaque)
+{
+ // if channel-block starts doing something, check if this needs adaptation
+}
+
+
+static void
+qio_channel_savevm_async_class_init(ObjectClass *klass,
+ void *class_data G_GNUC_UNUSED)
+{
+ QIOChannelClass *ioc_klass = QIO_CHANNEL_CLASS(klass);
+
+ ioc_klass->io_writev = qio_channel_savevm_async_writev;
+ ioc_klass->io_readv = qio_channel_savevm_async_readv;
+ ioc_klass->io_set_blocking = qio_channel_savevm_async_set_blocking;
+ ioc_klass->io_close = qio_channel_savevm_async_close;
+ ioc_klass->io_set_aio_fd_handler = qio_channel_savevm_async_set_aio_fd_handler;
+}
+
+static const TypeInfo qio_channel_savevm_async_info = {
+ .parent = TYPE_QIO_CHANNEL,
+ .name = TYPE_QIO_CHANNEL_SAVEVM_ASYNC,
+ .instance_size = sizeof(QIOChannelSavevmAsync),
+ .instance_finalize = qio_channel_savevm_async_finalize,
+ .class_init = qio_channel_savevm_async_class_init,
+};
+
+static void
+qio_channel_savevm_async_register_types(void)
+{
+ type_register_static(&qio_channel_savevm_async_info);
+}
+
+type_init(qio_channel_savevm_async_register_types);
diff --git a/migration/channel-savevm-async.h b/migration/channel-savevm-async.h
new file mode 100644
index 0000000000..17ae2cb261
--- /dev/null
+++ b/migration/channel-savevm-async.h
@@ -0,0 +1,51 @@
+/*
+ * QEMU I/O channels driver for savevm-async.c
+ *
+ * Copyright (c) 2022 Proxmox Server Solutions
+ *
+ * Authors:
+ * Fiona Ebner (f.ebner@proxmox.com)
+ *
+ * This work is licensed under the terms of the GNU GPL, version 2 or later.
+ * See the COPYING file in the top-level directory.
+ */
+
+#ifndef QIO_CHANNEL_SAVEVM_ASYNC_H
+#define QIO_CHANNEL_SAVEVM_ASYNC_H
+
+#include "io/channel.h"
+#include "qom/object.h"
+
+#define TYPE_QIO_CHANNEL_SAVEVM_ASYNC "qio-channel-savevm-async"
+OBJECT_DECLARE_SIMPLE_TYPE(QIOChannelSavevmAsync, QIO_CHANNEL_SAVEVM_ASYNC)
+
+
+/**
+ * QIOChannelSavevmAsync:
+ *
+ * The QIOChannelBlock object provides a channel implementation that is able to
+ * perform I/O on any BlockBackend whose BlockDriverState directly contains a
+ * VMState (as opposed to indirectly, like qcow2). It allows tracking the
+ * current position from the outside.
+ */
+struct QIOChannelSavevmAsync {
+ QIOChannel parent;
+ BlockBackend *be;
+ size_t *bs_pos;
+};
+
+
+/**
+ * qio_channel_savevm_async_new:
+ * @be: the block backend
+ * @bs_pos: used to keep track of the IOChannels current position
+ *
+ * Create a new IO channel object that can perform I/O on a BlockBackend object
+ * whose BlockDriverState directly contains a VMState.
+ *
+ * Returns: the new channel object
+ */
+QIOChannelSavevmAsync *
+qio_channel_savevm_async_new(BlockBackend *be, size_t *bs_pos);
+
+#endif /* QIO_CHANNEL_SAVEVM_ASYNC_H */
diff --git a/migration/meson.build b/migration/meson.build
index 1eeb915ff6..95d1cf2250 100644
--- a/migration/meson.build
+++ b/migration/meson.build
@@ -13,6 +13,7 @@ system_ss.add(files(
'block-dirty-bitmap.c',
'channel.c',
'channel-block.c',
+ 'channel-savevm-async.c',
'dirtyrate.c',
'exec.c',
'fd.c',

View File

@@ -6,41 +6,40 @@ Subject: [PATCH] PVE: qapi: modify spice query
Provide the last ticket in the SpiceInfo struct optionally.
Signed-off-by: Thomas Lamprecht <t.lamprecht@proxmox.com>
[FE: adapt to QAPI change]
Signed-off-by: Fiona Ebner <f.ebner@proxmox.com>
---
qapi/ui.json | 3 +++
ui/spice-core.c | 4 ++++
2 files changed, 7 insertions(+)
ui/spice-core.c | 5 +++++
2 files changed, 8 insertions(+)
diff --git a/qapi/ui.json b/qapi/ui.json
index f610bce118..6ea26a9acb 100644
index 9d6721037f..af87b18db9 100644
--- a/qapi/ui.json
+++ b/qapi/ui.json
@@ -314,11 +314,14 @@
@@ -214,11 +214,14 @@
#
# @channels: a list of @SpiceChannel for each active spice channel
#
+# @ticket: The last ticket set with set_password
+#
# Since: 0.14
# Since: 0.14.0
##
{ 'struct': 'SpiceInfo',
'data': {'enabled': 'bool', 'migrated': 'bool', '*host': 'str', '*port': 'int',
'*tls-port': 'int', '*auth': 'str', '*compiled-version': 'str',
+ '*ticket': 'str',
'mouse-mode': 'SpiceQueryMouseMode', '*channels': ['SpiceChannel']},
'if': 'CONFIG_SPICE' }
'if': 'defined(CONFIG_SPICE)' }
diff --git a/ui/spice-core.c b/ui/spice-core.c
index ea20e6153c..55a15fba8b 100644
index ca04965ead..243466c13d 100644
--- a/ui/spice-core.c
+++ b/ui/spice-core.c
@@ -548,6 +548,10 @@ static SpiceInfo *qmp_query_spice_real(Error **errp)
@@ -539,6 +539,11 @@ SpiceInfo *qmp_query_spice(Error **errp)
micro = SPICE_SERVER_VERSION & 0xff;
info->compiled_version = g_strdup_printf("%d.%d.%d", major, minor, micro);
+ if (auth_passwd) {
+ info->has_ticket = true;
+ info->ticket = g_strdup(auth_passwd);
+ }
+

View File

@@ -1,217 +0,0 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Wolfgang Bumiller <w.bumiller@proxmox.com>
Date: Mon, 4 May 2020 11:05:08 +0200
Subject: [PATCH] PVE: add optional buffer size to QEMUFile
So we can use a 4M buffer for savevm-async which should
increase performance storing the state onto ceph.
Signed-off-by: Wolfgang Bumiller <w.bumiller@proxmox.com>
[increase max IOV count in QEMUFile to actually write more data]
Signed-off-by: Stefan Reiter <s.reiter@proxmox.com>
Signed-off-by: Thomas Lamprecht <t.lamprecht@proxmox.com>
[FE: adapt to removal of QEMUFileOps]
Signed-off-by: Fiona Ebner <f.ebner@proxmox.com>
---
migration/qemu-file.c | 50 +++++++++++++++++++++++++++-------------
migration/qemu-file.h | 2 ++
migration/savevm-async.c | 5 ++--
3 files changed, 39 insertions(+), 18 deletions(-)
diff --git a/migration/qemu-file.c b/migration/qemu-file.c
index a10882d47f..19c1de0472 100644
--- a/migration/qemu-file.c
+++ b/migration/qemu-file.c
@@ -35,8 +35,8 @@
#include "rdma.h"
#include "io/channel-file.h"
-#define IO_BUF_SIZE 32768
-#define MAX_IOV_SIZE MIN_CONST(IOV_MAX, 64)
+#define DEFAULT_IO_BUF_SIZE 32768
+#define MAX_IOV_SIZE MIN_CONST(IOV_MAX, 256)
struct QEMUFile {
QIOChannel *ioc;
@@ -44,7 +44,8 @@ struct QEMUFile {
int buf_index;
int buf_size; /* 0 when writing */
- uint8_t buf[IO_BUF_SIZE];
+ size_t buf_allocated_size;
+ uint8_t *buf;
DECLARE_BITMAP(may_free, MAX_IOV_SIZE);
struct iovec iov[MAX_IOV_SIZE];
@@ -101,7 +102,9 @@ int qemu_file_shutdown(QEMUFile *f)
return 0;
}
-static QEMUFile *qemu_file_new_impl(QIOChannel *ioc, bool is_writable)
+static QEMUFile *qemu_file_new_impl(QIOChannel *ioc,
+ bool is_writable,
+ size_t buffer_size)
{
QEMUFile *f;
@@ -110,6 +113,8 @@ static QEMUFile *qemu_file_new_impl(QIOChannel *ioc, bool is_writable)
object_ref(ioc);
f->ioc = ioc;
f->is_writable = is_writable;
+ f->buf_allocated_size = buffer_size;
+ f->buf = malloc(buffer_size);
return f;
}
@@ -120,17 +125,27 @@ static QEMUFile *qemu_file_new_impl(QIOChannel *ioc, bool is_writable)
*/
QEMUFile *qemu_file_get_return_path(QEMUFile *f)
{
- return qemu_file_new_impl(f->ioc, !f->is_writable);
+ return qemu_file_new_impl(f->ioc, !f->is_writable, DEFAULT_IO_BUF_SIZE);
}
QEMUFile *qemu_file_new_output(QIOChannel *ioc)
{
- return qemu_file_new_impl(ioc, true);
+ return qemu_file_new_impl(ioc, true, DEFAULT_IO_BUF_SIZE);
+}
+
+QEMUFile *qemu_file_new_output_sized(QIOChannel *ioc, size_t buffer_size)
+{
+ return qemu_file_new_impl(ioc, true, buffer_size);
}
QEMUFile *qemu_file_new_input(QIOChannel *ioc)
{
- return qemu_file_new_impl(ioc, false);
+ return qemu_file_new_impl(ioc, false, DEFAULT_IO_BUF_SIZE);
+}
+
+QEMUFile *qemu_file_new_input_sized(QIOChannel *ioc, size_t buffer_size)
+{
+ return qemu_file_new_impl(ioc, false, buffer_size);
}
/*
@@ -328,7 +343,7 @@ static ssize_t coroutine_mixed_fn qemu_fill_buffer(QEMUFile *f)
do {
len = qio_channel_read(f->ioc,
(char *)f->buf + pending,
- IO_BUF_SIZE - pending,
+ f->buf_allocated_size - pending,
&local_error);
if (len == QIO_CHANNEL_ERR_BLOCK) {
if (qemu_in_coroutine()) {
@@ -368,6 +383,9 @@ int qemu_fclose(QEMUFile *f)
ret = ret2;
}
g_clear_pointer(&f->ioc, object_unref);
+
+ free(f->buf);
+
error_free(f->last_error_obj);
g_free(f);
trace_qemu_file_fclose();
@@ -416,7 +434,7 @@ static void add_buf_to_iovec(QEMUFile *f, size_t len)
{
if (!add_to_iovec(f, f->buf + f->buf_index, len, false)) {
f->buf_index += len;
- if (f->buf_index == IO_BUF_SIZE) {
+ if (f->buf_index == f->buf_allocated_size) {
qemu_fflush(f);
}
}
@@ -441,7 +459,7 @@ void qemu_put_buffer(QEMUFile *f, const uint8_t *buf, size_t size)
}
while (size > 0) {
- l = IO_BUF_SIZE - f->buf_index;
+ l = f->buf_allocated_size - f->buf_index;
if (l > size) {
l = size;
}
@@ -587,8 +605,8 @@ size_t coroutine_mixed_fn qemu_peek_buffer(QEMUFile *f, uint8_t **buf, size_t si
size_t index;
assert(!qemu_file_is_writable(f));
- assert(offset < IO_BUF_SIZE);
- assert(size <= IO_BUF_SIZE - offset);
+ assert(offset < f->buf_allocated_size);
+ assert(size <= f->buf_allocated_size - offset);
/* The 1st byte to read from */
index = f->buf_index + offset;
@@ -638,7 +656,7 @@ size_t coroutine_mixed_fn qemu_get_buffer(QEMUFile *f, uint8_t *buf, size_t size
size_t res;
uint8_t *src;
- res = qemu_peek_buffer(f, &src, MIN(pending, IO_BUF_SIZE), 0);
+ res = qemu_peek_buffer(f, &src, MIN(pending, f->buf_allocated_size), 0);
if (res == 0) {
return done;
}
@@ -672,7 +690,7 @@ size_t coroutine_mixed_fn qemu_get_buffer(QEMUFile *f, uint8_t *buf, size_t size
*/
size_t coroutine_mixed_fn qemu_get_buffer_in_place(QEMUFile *f, uint8_t **buf, size_t size)
{
- if (size < IO_BUF_SIZE) {
+ if (size < f->buf_allocated_size) {
size_t res;
uint8_t *src = NULL;
@@ -697,7 +715,7 @@ int coroutine_mixed_fn qemu_peek_byte(QEMUFile *f, int offset)
int index = f->buf_index + offset;
assert(!qemu_file_is_writable(f));
- assert(offset < IO_BUF_SIZE);
+ assert(offset < f->buf_allocated_size);
if (index >= f->buf_size) {
qemu_fill_buffer(f);
@@ -811,7 +829,7 @@ static int qemu_compress_data(z_stream *stream, uint8_t *dest, size_t dest_len,
ssize_t qemu_put_compression_data(QEMUFile *f, z_stream *stream,
const uint8_t *p, size_t size)
{
- ssize_t blen = IO_BUF_SIZE - f->buf_index - sizeof(int32_t);
+ ssize_t blen = f->buf_allocated_size - f->buf_index - sizeof(int32_t);
if (blen < compressBound(size)) {
return -1;
diff --git a/migration/qemu-file.h b/migration/qemu-file.h
index 32fd4a34fd..36a0cd8cc8 100644
--- a/migration/qemu-file.h
+++ b/migration/qemu-file.h
@@ -30,7 +30,9 @@
#include "io/channel.h"
QEMUFile *qemu_file_new_input(QIOChannel *ioc);
+QEMUFile *qemu_file_new_input_sized(QIOChannel *ioc, size_t buffer_size);
QEMUFile *qemu_file_new_output(QIOChannel *ioc);
+QEMUFile *qemu_file_new_output_sized(QIOChannel *ioc, size_t buffer_size);
int qemu_fclose(QEMUFile *f);
/*
diff --git a/migration/savevm-async.c b/migration/savevm-async.c
index 779e4e2a78..bf36fc06d2 100644
--- a/migration/savevm-async.c
+++ b/migration/savevm-async.c
@@ -379,7 +379,7 @@ void qmp_savevm_start(const char *statefile, Error **errp)
QIOChannel *ioc = QIO_CHANNEL(qio_channel_savevm_async_new(snap_state.target,
&snap_state.bs_pos));
- snap_state.file = qemu_file_new_output(ioc);
+ snap_state.file = qemu_file_new_output_sized(ioc, 4 * 1024 * 1024);
if (!snap_state.file) {
error_set(errp, ERROR_CLASS_GENERIC_ERROR, "failed to open '%s'", statefile);
@@ -496,7 +496,8 @@ int load_snapshot_from_blockdev(const char *filename, Error **errp)
blk_op_block_all(be, blocker);
/* restore the VM state */
- f = qemu_file_new_input(QIO_CHANNEL(qio_channel_savevm_async_new(be, &bs_pos)));
+ f = qemu_file_new_input_sized(QIO_CHANNEL(qio_channel_savevm_async_new(be, &bs_pos)),
+ 4 * 1024 * 1024);
if (!f) {
error_setg(errp, "Could not open VM state file");
goto the_end;

View File

@@ -0,0 +1,183 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Wolfgang Bumiller <w.bumiller@proxmox.com>
Date: Mon, 4 May 2020 11:05:08 +0200
Subject: [PATCH] add optional buffer size to QEMUFile
So we can use a 4M buffer for savevm-async which should
increase performance storing the state onto ceph.
Signed-off-by: Wolfgang Bumiller <w.bumiller@proxmox.com>
---
migration/qemu-file.c | 36 ++++++++++++++++++++++++------------
migration/qemu-file.h | 1 +
savevm-async.c | 4 ++--
3 files changed, 27 insertions(+), 14 deletions(-)
diff --git a/migration/qemu-file.c b/migration/qemu-file.c
index be21518c57..a4d2e2c8ff 100644
--- a/migration/qemu-file.c
+++ b/migration/qemu-file.c
@@ -30,7 +30,7 @@
#include "trace.h"
#include "qapi/error.h"
-#define IO_BUF_SIZE 32768
+#define DEFAULT_IO_BUF_SIZE 32768
#define MAX_IOV_SIZE MIN_CONST(IOV_MAX, 64)
struct QEMUFile {
@@ -45,7 +45,8 @@ struct QEMUFile {
when reading */
int buf_index;
int buf_size; /* 0 when writing */
- uint8_t buf[IO_BUF_SIZE];
+ size_t buf_allocated_size;
+ uint8_t *buf;
DECLARE_BITMAP(may_free, MAX_IOV_SIZE);
struct iovec iov[MAX_IOV_SIZE];
@@ -101,7 +102,7 @@ bool qemu_file_mode_is_not_valid(const char *mode)
return false;
}
-QEMUFile *qemu_fopen_ops(void *opaque, const QEMUFileOps *ops)
+QEMUFile *qemu_fopen_ops_sized(void *opaque, const QEMUFileOps *ops, size_t buffer_size)
{
QEMUFile *f;
@@ -109,9 +110,17 @@ QEMUFile *qemu_fopen_ops(void *opaque, const QEMUFileOps *ops)
f->opaque = opaque;
f->ops = ops;
+ f->buf_allocated_size = buffer_size;
+ f->buf = malloc(buffer_size);
+
return f;
}
+QEMUFile *qemu_fopen_ops(void *opaque, const QEMUFileOps *ops)
+{
+ return qemu_fopen_ops_sized(opaque, ops, DEFAULT_IO_BUF_SIZE);
+}
+
void qemu_file_set_hooks(QEMUFile *f, const QEMUFileHooks *hooks)
{
@@ -346,7 +355,7 @@ static ssize_t qemu_fill_buffer(QEMUFile *f)
}
len = f->ops->get_buffer(f->opaque, f->buf + pending, f->pos,
- IO_BUF_SIZE - pending, &local_error);
+ f->buf_allocated_size - pending, &local_error);
if (len > 0) {
f->buf_size += len;
f->pos += len;
@@ -386,6 +395,9 @@ int qemu_fclose(QEMUFile *f)
ret = ret2;
}
}
+
+ free(f->buf);
+
/* If any error was spotted before closing, we should report it
* instead of the close() return value.
*/
@@ -435,7 +447,7 @@ static void add_buf_to_iovec(QEMUFile *f, size_t len)
{
if (!add_to_iovec(f, f->buf + f->buf_index, len, false)) {
f->buf_index += len;
- if (f->buf_index == IO_BUF_SIZE) {
+ if (f->buf_index == f->buf_allocated_size) {
qemu_fflush(f);
}
}
@@ -461,7 +473,7 @@ void qemu_put_buffer(QEMUFile *f, const uint8_t *buf, size_t size)
}
while (size > 0) {
- l = IO_BUF_SIZE - f->buf_index;
+ l = f->buf_allocated_size - f->buf_index;
if (l > size) {
l = size;
}
@@ -508,8 +520,8 @@ size_t qemu_peek_buffer(QEMUFile *f, uint8_t **buf, size_t size, size_t offset)
size_t index;
assert(!qemu_file_is_writable(f));
- assert(offset < IO_BUF_SIZE);
- assert(size <= IO_BUF_SIZE - offset);
+ assert(offset < f->buf_allocated_size);
+ assert(size <= f->buf_allocated_size - offset);
/* The 1st byte to read from */
index = f->buf_index + offset;
@@ -559,7 +571,7 @@ size_t qemu_get_buffer(QEMUFile *f, uint8_t *buf, size_t size)
size_t res;
uint8_t *src;
- res = qemu_peek_buffer(f, &src, MIN(pending, IO_BUF_SIZE), 0);
+ res = qemu_peek_buffer(f, &src, MIN(pending, f->buf_allocated_size), 0);
if (res == 0) {
return done;
}
@@ -593,7 +605,7 @@ size_t qemu_get_buffer(QEMUFile *f, uint8_t *buf, size_t size)
*/
size_t qemu_get_buffer_in_place(QEMUFile *f, uint8_t **buf, size_t size)
{
- if (size < IO_BUF_SIZE) {
+ if (size < f->buf_allocated_size) {
size_t res;
uint8_t *src;
@@ -618,7 +630,7 @@ int qemu_peek_byte(QEMUFile *f, int offset)
int index = f->buf_index + offset;
assert(!qemu_file_is_writable(f));
- assert(offset < IO_BUF_SIZE);
+ assert(offset < f->buf_allocated_size);
if (index >= f->buf_size) {
qemu_fill_buffer(f);
@@ -770,7 +782,7 @@ static int qemu_compress_data(z_stream *stream, uint8_t *dest, size_t dest_len,
ssize_t qemu_put_compression_data(QEMUFile *f, z_stream *stream,
const uint8_t *p, size_t size)
{
- ssize_t blen = IO_BUF_SIZE - f->buf_index - sizeof(int32_t);
+ ssize_t blen = f->buf_allocated_size - f->buf_index - sizeof(int32_t);
if (blen < compressBound(size)) {
return -1;
diff --git a/migration/qemu-file.h b/migration/qemu-file.h
index a9b6d6ccb7..8752d27c74 100644
--- a/migration/qemu-file.h
+++ b/migration/qemu-file.h
@@ -120,6 +120,7 @@ typedef struct QEMUFileHooks {
} QEMUFileHooks;
QEMUFile *qemu_fopen_ops(void *opaque, const QEMUFileOps *ops);
+QEMUFile *qemu_fopen_ops_sized(void *opaque, const QEMUFileOps *ops, size_t buffer_size);
void qemu_file_set_hooks(QEMUFile *f, const QEMUFileHooks *hooks);
int qemu_get_fd(QEMUFile *f);
int qemu_fclose(QEMUFile *f);
diff --git a/savevm-async.c b/savevm-async.c
index f918e18dce..156b7a030e 100644
--- a/savevm-async.c
+++ b/savevm-async.c
@@ -392,7 +392,7 @@ void qmp_savevm_start(bool has_statefile, const char *statefile, Error **errp)
goto restart;
}
- snap_state.file = qemu_fopen_ops(&snap_state, &block_file_ops);
+ snap_state.file = qemu_fopen_ops_sized(&snap_state, &block_file_ops, 4 * 1024 * 1024);
if (!snap_state.file) {
error_set(errp, ERROR_CLASS_GENERIC_ERROR, "failed to open '%s'", statefile);
@@ -514,7 +514,7 @@ int load_snapshot_from_blockdev(const char *filename, Error **errp)
blk_op_block_all(be, blocker);
/* restore the VM state */
- f = qemu_fopen_ops(be, &loadstate_file_ops);
+ f = qemu_fopen_ops_sized(be, &loadstate_file_ops, 4 * 1024 * 1024);
if (!f) {
error_setg(errp, "Could not open VM state file");
goto the_end;

View File

@@ -4,33 +4,30 @@ Date: Mon, 6 Apr 2020 12:16:47 +0200
Subject: [PATCH] PVE: block: add the zeroinit block driver filter
Signed-off-by: Thomas Lamprecht <t.lamprecht@proxmox.com>
[FE: adapt to changed function signatures
adhere to block graph lock requirements]
Signed-off-by: Fiona Ebner <f.ebner@proxmox.com>
---
block/meson.build | 1 +
block/zeroinit.c | 214 ++++++++++++++++++++++++++++++++++++++++++++++
2 files changed, 215 insertions(+)
block/Makefile.objs | 1 +
block/zeroinit.c | 198 ++++++++++++++++++++++++++++++++++++++++++++
2 files changed, 199 insertions(+)
create mode 100644 block/zeroinit.c
diff --git a/block/meson.build b/block/meson.build
index e1f03fd773..b530e117b5 100644
--- a/block/meson.build
+++ b/block/meson.build
@@ -39,6 +39,7 @@ block_ss.add(files(
'throttle.c',
'throttle-groups.c',
'write-threshold.c',
+ 'zeroinit.c',
), zstd, zlib, gnutls)
system_ss.add(when: 'CONFIG_TCG', if_true: files('blkreplay.c'))
diff --git a/block/Makefile.objs b/block/Makefile.objs
index 19c6f371c9..d1a9227b8f 100644
--- a/block/Makefile.objs
+++ b/block/Makefile.objs
@@ -11,6 +11,7 @@ block-obj-$(CONFIG_QED) += qed.o qed-l2-cache.o qed-table.o qed-cluster.o
block-obj-$(CONFIG_QED) += qed-check.o
block-obj-y += vhdx.o vhdx-endian.o vhdx-log.o
block-obj-y += quorum.o
+block-obj-y += zeroinit.o
block-obj-y += blkdebug.o blkverify.o blkreplay.o
block-obj-$(CONFIG_PARALLELS) += parallels.o
block-obj-y += blklogwrites.o
diff --git a/block/zeroinit.c b/block/zeroinit.c
new file mode 100644
index 0000000000..696558d8d6
index 0000000000..4fbb80eab0
--- /dev/null
+++ b/block/zeroinit.c
@@ -0,0 +1,214 @@
@@ -0,0 +1,198 @@
+/*
+ * Filter to fake a zero-initialized block device.
+ *
@@ -44,8 +41,6 @@ index 0000000000..696558d8d6
+#include "qemu/osdep.h"
+#include "qapi/error.h"
+#include "block/block_int.h"
+#include "block/block-io.h"
+#include "block/graph-lock.h"
+#include "qapi/qmp/qdict.h"
+#include "qapi/qmp/qstring.h"
+#include "qemu/cutils.h"
@@ -96,7 +91,6 @@ index 0000000000..696558d8d6
+ Error **errp)
+{
+ BDRVZeroinitState *s = bs->opaque;
+ BdrvChild *file = NULL;
+ QemuOpts *opts;
+ Error *local_err = NULL;
+ int ret;
@@ -112,13 +106,8 @@ index 0000000000..696558d8d6
+ }
+
+ /* Open the raw file */
+ file = bdrv_open_child(qemu_opt_get(opts, "x-next"), options, "next", bs,
+ &child_of_bds,
+ BDRV_CHILD_FILTERED | BDRV_CHILD_PRIMARY, false,
+ &local_err);
+ bdrv_graph_wrlock();
+ bs->file = file;
+ bdrv_graph_wrunlock();
+ bs->file = bdrv_open_child(qemu_opt_get(opts, "x-next"), options, "next",
+ bs, &child_of_bds, BDRV_CHILD_FILTERED, false, &local_err);
+ if (local_err) {
+ ret = -EINVAL;
+ error_propagate(errp, local_err);
@@ -131,9 +120,7 @@ index 0000000000..696558d8d6
+ ret = 0;
+fail:
+ if (ret < 0) {
+ bdrv_graph_wrlock();
+ bdrv_unref_child(bs, bs->file);
+ bdrv_graph_wrunlock();
+ }
+ qemu_opts_del(opts);
+ return ret;
@@ -145,32 +132,28 @@ index 0000000000..696558d8d6
+ (void)s;
+}
+
+static coroutine_fn int64_t GRAPH_RDLOCK
+zeroinit_co_getlength(BlockDriverState *bs)
+static int64_t zeroinit_getlength(BlockDriverState *bs)
+{
+ return bdrv_co_getlength(bs->file->bs);
+ return bdrv_getlength(bs->file->bs);
+}
+
+static int coroutine_fn GRAPH_RDLOCK
+zeroinit_co_preadv(BlockDriverState *bs, int64_t offset, int64_t bytes,
+ QEMUIOVector *qiov, BdrvRequestFlags flags)
+static int coroutine_fn zeroinit_co_preadv(BlockDriverState *bs,
+ uint64_t offset, uint64_t bytes, QEMUIOVector *qiov, int flags)
+{
+ return bdrv_co_preadv(bs->file, offset, bytes, qiov, flags);
+}
+
+static int coroutine_fn GRAPH_RDLOCK
+zeroinit_co_pwrite_zeroes(BlockDriverState *bs, int64_t offset, int64_t bytes,
+ BdrvRequestFlags flags)
+static int coroutine_fn zeroinit_co_pwrite_zeroes(BlockDriverState *bs, int64_t offset,
+ int count, BdrvRequestFlags flags)
+{
+ BDRVZeroinitState *s = bs->opaque;
+ if (offset >= s->extents)
+ return 0;
+ return bdrv_pwrite_zeroes(bs->file, offset, bytes, flags);
+ return bdrv_pwrite_zeroes(bs->file, offset, count, flags);
+}
+
+static int coroutine_fn GRAPH_RDLOCK
+zeroinit_co_pwritev(BlockDriverState *bs, int64_t offset, int64_t bytes,
+ QEMUIOVector *qiov, BdrvRequestFlags flags)
+static int coroutine_fn zeroinit_co_pwritev(BlockDriverState *bs,
+ uint64_t offset, uint64_t bytes, QEMUIOVector *qiov, int flags)
+{
+ BDRVZeroinitState *s = bs->opaque;
+ int64_t extents = offset + bytes;
@@ -179,37 +162,33 @@ index 0000000000..696558d8d6
+ return bdrv_co_pwritev(bs->file, offset, bytes, qiov, flags);
+}
+
+static coroutine_fn int GRAPH_RDLOCK
+zeroinit_co_flush(BlockDriverState *bs)
+static coroutine_fn int zeroinit_co_flush(BlockDriverState *bs)
+{
+ return bdrv_co_flush(bs->file->bs);
+}
+
+static int GRAPH_RDLOCK
+zeroinit_has_zero_init(BlockDriverState *bs)
+static int zeroinit_has_zero_init(BlockDriverState *bs)
+{
+ BDRVZeroinitState *s = bs->opaque;
+ return s->has_zero_init;
+}
+
+static int coroutine_fn GRAPH_RDLOCK
+zeroinit_co_pdiscard(BlockDriverState *bs, int64_t offset, int64_t bytes)
+static int coroutine_fn zeroinit_co_pdiscard(BlockDriverState *bs,
+ int64_t offset, int count)
+{
+ return bdrv_co_pdiscard(bs->file, offset, bytes);
+ return bdrv_co_pdiscard(bs->file, offset, count);
+}
+
+static int GRAPH_RDLOCK
+zeroinit_co_truncate(BlockDriverState *bs, int64_t offset, _Bool exact,
+ PreallocMode prealloc, BdrvRequestFlags req_flags,
+ Error **errp)
+static int zeroinit_co_truncate(BlockDriverState *bs, int64_t offset,
+ _Bool exact, PreallocMode prealloc,
+ BdrvRequestFlags req_flags, Error **errp)
+{
+ return bdrv_co_truncate(bs->file, offset, exact, prealloc, req_flags, errp);
+}
+
+static coroutine_fn int GRAPH_RDLOCK
+zeroinit_co_get_info(BlockDriverState *bs, BlockDriverInfo *bdi)
+static int zeroinit_get_info(BlockDriverState *bs, BlockDriverInfo *bdi)
+{
+ return bdrv_co_get_info(bs->file->bs, bdi);
+ return bdrv_get_info(bs->file->bs, bdi);
+}
+
+static BlockDriver bdrv_zeroinit = {
@@ -220,7 +199,7 @@ index 0000000000..696558d8d6
+ .bdrv_parse_filename = zeroinit_parse_filename,
+ .bdrv_file_open = zeroinit_open,
+ .bdrv_close = zeroinit_close,
+ .bdrv_co_getlength = zeroinit_co_getlength,
+ .bdrv_getlength = zeroinit_getlength,
+ .bdrv_child_perm = bdrv_default_perms,
+ .bdrv_co_flush_to_disk = zeroinit_co_flush,
+
@@ -233,10 +212,12 @@ index 0000000000..696558d8d6
+
+ .bdrv_has_zero_init = zeroinit_has_zero_init,
+
+ .bdrv_co_block_status = bdrv_co_block_status_from_file,
+
+ .bdrv_co_pdiscard = zeroinit_co_pdiscard,
+
+ .bdrv_co_truncate = zeroinit_co_truncate,
+ .bdrv_co_get_info = zeroinit_co_get_info,
+ .bdrv_get_info = zeroinit_get_info,
+};
+
+static void bdrv_zeroinit_init(void)

View File

@@ -10,16 +10,16 @@ Signed-off-by: Wolfgang Bumiller <w.bumiller@proxmox.com>
Signed-off-by: Thomas Lamprecht <t.lamprecht@proxmox.com>
---
qemu-options.hx | 3 +++
system/vl.c | 8 ++++++++
softmmu/vl.c | 8 ++++++++
2 files changed, 11 insertions(+)
diff --git a/qemu-options.hx b/qemu-options.hx
index 511ab9415e..92e301d545 100644
index d32995cc50..abfde19ce0 100644
--- a/qemu-options.hx
+++ b/qemu-options.hx
@@ -1237,6 +1237,9 @@ legacy PC, they are not recommended for modern configurations.
@@ -914,6 +914,9 @@ DEFHEADING()
ERST
DEFHEADING(Block device options:)
+DEF("id", HAS_ARG, QEMU_OPTION_id,
+ "-id n set the VMID", QEMU_ARCH_ALL)
@@ -27,21 +27,21 @@ index 511ab9415e..92e301d545 100644
DEF("fda", HAS_ARG, QEMU_OPTION_fda,
"-fda/-fdb file use 'file' as floppy disk 0/1 image\n", QEMU_ARCH_ALL)
DEF("fdb", HAS_ARG, QEMU_OPTION_fdb, "", QEMU_ARCH_ALL)
diff --git a/system/vl.c b/system/vl.c
index 2738ab7c91..20ebf2c920 100644
--- a/system/vl.c
+++ b/system/vl.c
@@ -2748,6 +2748,7 @@ void qemu_init(int argc, char **argv)
MachineClass *machine_class;
bool userconfig = true;
FILE *vmstate_dump_file = NULL;
diff --git a/softmmu/vl.c b/softmmu/vl.c
index 670b7e427c..366e30e594 100644
--- a/softmmu/vl.c
+++ b/softmmu/vl.c
@@ -2832,6 +2832,7 @@ static void create_default_memdev(MachineState *ms, const char *path)
void qemu_init(int argc, char **argv, char **envp)
{
int i;
+ long vm_id;
qemu_add_opts(&qemu_drive_opts);
qemu_add_drive_opts(&qemu_legacy_drive_opts);
@@ -3371,6 +3372,13 @@ void qemu_init(int argc, char **argv)
machine_parse_property_opt(qemu_find_opts("smp-opts"),
"smp", optarg);
int snapshot, linux_boot;
const char *initrd_filename;
const char *kernel_filename, *kernel_cmdline;
@@ -3530,6 +3531,13 @@ void qemu_init(int argc, char **argv, char **envp)
exit(1);
}
break;
+ case QEMU_OPTION_id:
+ vm_id = strtol(optarg, (char **)&optarg, 10);
@@ -50,6 +50,6 @@ index 2738ab7c91..20ebf2c920 100644
+ exit(1);
+ }
+ break;
#ifdef CONFIG_VNC
case QEMU_OPTION_vnc:
vnc_parse(optarg);
vnc_parse(optarg, &error_fatal);
break;

View File

@@ -11,10 +11,10 @@ Signed-off-by: Thomas Lamprecht <t.lamprecht@proxmox.com>
1 file changed, 9 insertions(+)
diff --git a/hw/intc/apic_common.c b/hw/intc/apic_common.c
index d8fc1e2815..789694b8b3 100644
index 81addd6390..c2026b07c5 100644
--- a/hw/intc/apic_common.c
+++ b/hw/intc/apic_common.c
@@ -263,6 +263,15 @@ static void apic_reset_common(DeviceState *dev)
@@ -278,6 +278,15 @@ static void apic_reset_common(DeviceState *dev)
info->vapic_base_update(s);
apic_init_reset(dev);

View File

@@ -8,15 +8,15 @@ Otherwise creating images on nfs/cifs can be problematic.
Signed-off-by: Wolfgang Bumiller <w.bumiller@proxmox.com>
Signed-off-by: Thomas Lamprecht <t.lamprecht@proxmox.com>
---
block/file-posix.c | 59 ++++++++++++++++++++++++++++++--------------
qapi/block-core.json | 7 +++++-
2 files changed, 46 insertions(+), 20 deletions(-)
block/file-posix.c | 61 +++++++++++++++++++++++++++++---------------
qapi/block-core.json | 3 ++-
2 files changed, 43 insertions(+), 21 deletions(-)
diff --git a/block/file-posix.c b/block/file-posix.c
index 43bc0bd520..60e98c87f1 100644
index bb72e1e5ca..914bd1f367 100644
--- a/block/file-posix.c
+++ b/block/file-posix.c
@@ -2876,6 +2876,7 @@ raw_co_create(BlockdevCreateOptions *options, Error **errp)
@@ -2390,6 +2390,7 @@ raw_co_create(BlockdevCreateOptions *options, Error **errp)
int fd;
uint64_t perm, shared;
int result = 0;
@@ -24,7 +24,7 @@ index 43bc0bd520..60e98c87f1 100644
/* Validate options and set default values */
assert(options->driver == BLOCKDEV_DRIVER_FILE);
@@ -2916,19 +2917,22 @@ raw_co_create(BlockdevCreateOptions *options, Error **errp)
@@ -2431,19 +2432,22 @@ raw_co_create(BlockdevCreateOptions *options, Error **errp)
perm = BLK_PERM_WRITE | BLK_PERM_RESIZE;
shared = BLK_PERM_ALL & ~BLK_PERM_RESIZE;
@@ -59,7 +59,7 @@ index 43bc0bd520..60e98c87f1 100644
}
/* Clear the file by truncating it to 0 */
@@ -2982,13 +2986,15 @@ raw_co_create(BlockdevCreateOptions *options, Error **errp)
@@ -2497,13 +2501,15 @@ raw_co_create(BlockdevCreateOptions *options, Error **errp)
}
out_unlock:
@@ -82,7 +82,7 @@ index 43bc0bd520..60e98c87f1 100644
}
out_close:
@@ -3012,6 +3018,7 @@ raw_co_create_opts(BlockDriver *drv, const char *filename,
@@ -2528,6 +2534,7 @@ static int coroutine_fn raw_co_create_opts(BlockDriver *drv,
PreallocMode prealloc;
char *buf = NULL;
Error *local_err = NULL;
@@ -90,7 +90,7 @@ index 43bc0bd520..60e98c87f1 100644
/* Skip file: protocol prefix */
strstart(filename, "file:", &filename);
@@ -3034,6 +3041,18 @@ raw_co_create_opts(BlockDriver *drv, const char *filename,
@@ -2550,6 +2557,18 @@ static int coroutine_fn raw_co_create_opts(BlockDriver *drv,
return -EINVAL;
}
@@ -109,7 +109,7 @@ index 43bc0bd520..60e98c87f1 100644
options = (BlockdevCreateOptions) {
.driver = BLOCKDEV_DRIVER_FILE,
.u.file = {
@@ -3045,6 +3064,8 @@ raw_co_create_opts(BlockDriver *drv, const char *filename,
@@ -2561,6 +2580,8 @@ static int coroutine_fn raw_co_create_opts(BlockDriver *drv,
.nocow = nocow,
.has_extent_size_hint = has_extent_size_hint,
.extent_size_hint = extent_size_hint,
@@ -118,22 +118,20 @@ index 43bc0bd520..60e98c87f1 100644
},
};
return raw_co_create(&options, errp);
@@ -3107,7 +3128,7 @@ static int raw_check_perm(BlockDriverState *bs, uint64_t perm, uint64_t shared,
}
/* Copy locks to the new fd */
- if (s->perm_change_fd) {
+ if (s->use_lock && s->perm_change_fd) {
ret = raw_apply_lock_bytes(NULL, s->perm_change_fd, perm, ~shared,
false, errp);
if (ret < 0) {
diff --git a/qapi/block-core.json b/qapi/block-core.json
index 45ab548dfe..f7c2b63c5d 100644
index 197bdc1c36..ea5fae22ae 100644
--- a/qapi/block-core.json
+++ b/qapi/block-core.json
@@ -4956,6 +4956,10 @@
# @extent-size-hint: Extent size hint to add to the image file; 0 for
# not adding an extent size hint (default: 1 MB, since 5.1)
#
+# @locking: whether to enable file locking. If set to 'auto', only
+# enable when Open File Descriptor (OFD) locking API is available
+# (default: auto).
+#
# Since: 2.12
##
{ 'struct': 'BlockdevCreateOptionsFile',
@@ -4963,7 +4967,8 @@
@@ -4178,7 +4178,8 @@
'size': 'size',
'*preallocation': 'PreallocMode',
'*nocow': 'bool',

View File

@@ -18,10 +18,10 @@ Signed-off-by: Thomas Lamprecht <t.lamprecht@proxmox.com>
1 file changed, 1 insertion(+), 2 deletions(-)
diff --git a/monitor/qmp.c b/monitor/qmp.c
index 589c9524f8..2505dd658a 100644
index d433ceae5b..a16cf3532d 100644
--- a/monitor/qmp.c
+++ b/monitor/qmp.c
@@ -536,8 +536,7 @@ void monitor_init_qmp(Chardev *chr, bool pretty, Error **errp)
@@ -409,8 +409,7 @@ void monitor_init_qmp(Chardev *chr, bool pretty, Error **errp)
qemu_chr_fe_set_echo(&mon->common.chr, true);
/* Note: we run QMP monitor in I/O thread when @chr supports that */

View File

@@ -26,10 +26,10 @@ Signed-off-by: Thomas Lamprecht <t.lamprecht@proxmox.com>
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/hw/core/machine.c b/hw/core/machine.c
index 37ede0e7d4..513e49bab1 100644
index 8d1a90c6cf..413902777e 100644
--- a/hw/core/machine.c
+++ b/hw/core/machine.c
@@ -161,7 +161,8 @@ GlobalProperty hw_compat_4_0[] = {
@@ -66,7 +66,8 @@ GlobalProperty hw_compat_4_0[] = {
{ "virtio-vga", "edid", "false" },
{ "virtio-gpu-device", "edid", "false" },
{ "virtio-device", "use-started", "false" },

View File

@@ -10,120 +10,92 @@ Version is made available as 'pve-version' in query-machines (same as,
and only if 'is-current').
Signed-off-by: Stefan Reiter <s.reiter@proxmox.com>
Signed-off-by: Thomas Lamprecht <t.lamprecht@proxmox.com>
[FE: adapt to QAPI changes]
Signed-off-by: Fiona Ebner <f.ebner@proxmox.com>
---
hw/core/machine-qmp-cmds.c | 5 +++++
hw/core/machine-qmp-cmds.c | 6 ++++++
include/hw/boards.h | 2 ++
qapi/machine.json | 4 +++-
system/vl.c | 25 +++++++++++++++++++++++++
4 files changed, 35 insertions(+), 1 deletion(-)
qapi/machine.json | 3 ++-
softmmu/vl.c | 15 ++++++++++++++-
4 files changed, 24 insertions(+), 2 deletions(-)
diff --git a/hw/core/machine-qmp-cmds.c b/hw/core/machine-qmp-cmds.c
index 314351cdff..628a3537c5 100644
index 32f630549e..71e19db4e1 100644
--- a/hw/core/machine-qmp-cmds.c
+++ b/hw/core/machine-qmp-cmds.c
@@ -94,6 +94,11 @@ MachineInfoList *qmp_query_machines(Error **errp)
@@ -238,6 +238,12 @@ MachineInfoList *qmp_query_machines(Error **errp)
if (strcmp(mc->name, MACHINE_GET_CLASS(current_machine)->name) == 0) {
info->has_is_current = true;
info->is_current = true;
+
+ // PVE version string only exists for current machine
+ if (mc->pve_version) {
+ info->has_pve_version = true;
+ info->pve_version = g_strdup(mc->pve_version);
+ }
}
if (mc->default_cpu_type) {
diff --git a/include/hw/boards.h b/include/hw/boards.h
index 8b8f6d5c00..dd6d0a1447 100644
index 426ce5f625..3bce25a25f 100644
--- a/include/hw/boards.h
+++ b/include/hw/boards.h
@@ -246,6 +246,8 @@ struct MachineClass {
@@ -170,6 +170,8 @@ struct MachineClass {
const char *desc;
const char *deprecation_reason;
+ const char *pve_version;
+
void (*init)(MachineState *state);
void (*reset)(MachineState *state, ShutdownCause reason);
void (*reset)(MachineState *state);
void (*wakeup)(MachineState *state);
diff --git a/qapi/machine.json b/qapi/machine.json
index a024d5b05d..1d69bffaa0 100644
index 268044a34b..7a811a5860 100644
--- a/qapi/machine.json
+++ b/qapi/machine.json
@@ -168,6 +168,8 @@
#
# @acpi: machine type supports ACPI (since 8.0)
#
+# @pve-version: custom PVE version suffix specified as 'machine+pveN'
+#
# Since: 1.2
##
{ 'struct': 'MachineInfo',
@@ -175,7 +177,7 @@
@@ -365,7 +365,8 @@
'data': { 'name': 'str', '*alias': 'str',
'*is-default': 'bool', '*is-current': 'bool', 'cpu-max': 'int',
'hotpluggable-cpus': 'bool', 'numa-mem-supported': 'bool',
'deprecated': 'bool', '*default-cpu-type': 'str',
- '*default-ram-id': 'str', 'acpi': 'bool' } }
+ '*default-ram-id': 'str', 'acpi': 'bool', '*pve-version': 'str' } }
- 'deprecated': 'bool', '*default-cpu-type': 'str' } }
+ 'deprecated': 'bool', '*default-cpu-type': 'str',
+ '*pve-version': 'str' } }
##
# @query-machines:
diff --git a/system/vl.c b/system/vl.c
index 20ebf2c920..4d39e32097 100644
--- a/system/vl.c
+++ b/system/vl.c
@@ -1659,6 +1659,7 @@ static const QEMUOption *lookup_opt(int argc, char **argv,
static MachineClass *select_machine(QDict *qdict, Error **errp)
diff --git a/softmmu/vl.c b/softmmu/vl.c
index 366e30e594..16aa2186b0 100644
--- a/softmmu/vl.c
+++ b/softmmu/vl.c
@@ -2322,6 +2322,8 @@ static MachineClass *machine_parse(const char *name, GSList *machines)
{
const char *machine_type = qdict_get_try_str(qdict, "type");
+ const char *pvever = qdict_get_try_str(qdict, "pvever");
GSList *machines = object_class_get_list(TYPE_MACHINE, false);
MachineClass *machine_class;
Error *local_err = NULL;
@@ -1676,6 +1677,11 @@ static MachineClass *select_machine(QDict *qdict, Error **errp)
}
MachineClass *mc;
GSList *el;
+ size_t pvever_index = 0;
+ gchar *name_clean;
if (is_help_option(name)) {
printf("Supported machines are:\n");
@@ -2338,12 +2340,23 @@ static MachineClass *machine_parse(const char *name, GSList *machines)
exit(0);
}
+ if (machine_class) {
+ machine_class->pve_version = g_strdup(pvever);
+ qdict_del(qdict, "pvever");
- mc = find_machine(name, machines);
+ // PVE version is specified with '+' as seperator, e.g. pc-i440fx+pvever
+ pvever_index = strcspn(name, "+");
+
+ name_clean = g_strndup(name, pvever_index);
+ mc = find_machine(name_clean, machines);
+ g_free(name_clean);
+
if (!mc) {
error_report("unsupported machine type");
error_printf("Use -machine help to list supported machines\n");
exit(1);
}
+
+ if (pvever_index < strlen(name)) {
+ mc->pve_version = &name[pvever_index+1];
+ }
+
g_slist_free(machines);
if (local_err) {
error_append_hint(&local_err, "Use -machine help to list supported machines\n");
@@ -3313,12 +3319,31 @@ void qemu_init(int argc, char **argv)
case QEMU_OPTION_machine:
{
bool help;
+ size_t pvever_index, name_len;
+ const gchar *name;
+ gchar *name_clean, *pvever;
return mc;
}
keyval_parse_into(machine_opts_dict, optarg, "type", &help, &error_fatal);
if (help) {
machine_help_func(machine_opts_dict);
exit(EXIT_SUCCESS);
}
+
+ // PVE version is specified with '+' as seperator, e.g. pc-i440fx+pvever
+ name = qdict_get_try_str(machine_opts_dict, "type");
+ if (name != NULL) {
+ name_len = strlen(name);
+ pvever_index = strcspn(name, "+");
+ if (pvever_index < name_len) {
+ name_clean = g_strndup(name, pvever_index);
+ pvever = g_strndup(name + pvever_index + 1, name_len - pvever_index - 1);
+ qdict_put_str(machine_opts_dict, "pvever", pvever);
+ qdict_put_str(machine_opts_dict, "type", name_clean);
+ g_free(name_clean);
+ g_free(pvever);
+ }
+ }
+
break;
}
case QEMU_OPTION_accel:

View File

@@ -3,70 +3,58 @@ From: Dietmar Maurer <dietmar@proxmox.com>
Date: Mon, 6 Apr 2020 12:16:57 +0200
Subject: [PATCH] PVE-Backup: add vma backup format code
Notes about partial restoring: skipping a certain drive is done via a
map line of the form skip=drive-scsi0. Since in PVE, most archives are
compressed and piped to vma for restore, it's not easily possible to
skip reads.
Signed-off-by: Thomas Lamprecht <t.lamprecht@proxmox.com>
[FE: improvements during create
allow partial restore]
Signed-off-by: Fiona Ebner <f.ebner@proxmox.com>
---
block/meson.build | 2 +
meson.build | 5 +
vma-reader.c | 870 ++++++++++++++++++++++++++++++++++++++++++++
vma-writer.c | 818 +++++++++++++++++++++++++++++++++++++++++
vma.c | 901 ++++++++++++++++++++++++++++++++++++++++++++++
vma.h | 150 ++++++++
6 files changed, 2746 insertions(+)
Makefile | 3 +-
Makefile.objs | 1 +
vma-reader.c | 857 ++++++++++++++++++++++++++++++++++++++++++++++++++
vma-writer.c | 790 ++++++++++++++++++++++++++++++++++++++++++++++
vma.c | 839 ++++++++++++++++++++++++++++++++++++++++++++++++
vma.h | 150 +++++++++
6 files changed, 2639 insertions(+), 1 deletion(-)
create mode 100644 vma-reader.c
create mode 100644 vma-writer.c
create mode 100644 vma.c
create mode 100644 vma.h
diff --git a/block/meson.build b/block/meson.build
index b530e117b5..b245daa98e 100644
--- a/block/meson.build
+++ b/block/meson.build
@@ -42,6 +42,8 @@ block_ss.add(files(
'zeroinit.c',
), zstd, zlib, gnutls)
diff --git a/Makefile b/Makefile
index 13dd708c4a..7b8c17ce2d 100644
--- a/Makefile
+++ b/Makefile
@@ -479,7 +479,7 @@ dummy := $(call unnest-vars,, \
+block_ss.add(files('../vma-writer.c'), libuuid)
+
system_ss.add(when: 'CONFIG_TCG', if_true: files('blkreplay.c'))
system_ss.add(files('block-ram-registrar.c'))
include $(SRC_PATH)/tests/Makefile.include
diff --git a/meson.build b/meson.build
index 91a0aa64c6..620cc594b2 100644
--- a/meson.build
+++ b/meson.build
@@ -1922,6 +1922,8 @@ endif
-all: $(DOCS) $(if $(BUILD_DOCS),sphinxdocs) $(TOOLS) $(HELPERS-y) recurse-all modules $(vhost-user-json-y)
+all: $(DOCS) $(if $(BUILD_DOCS),sphinxdocs) $(TOOLS) vma$(EXESUF) $(HELPERS-y) recurse-all modules $(vhost-user-json-y)
has_gettid = cc.has_function('gettid')
qemu-version.h: FORCE
$(call quiet-command, \
@@ -602,6 +602,7 @@ qemu-img$(EXESUF): qemu-img.o $(authz-obj-y) $(block-obj-y) $(crypto-obj-y) $(io
qemu-nbd$(EXESUF): qemu-nbd.o $(authz-obj-y) $(block-obj-y) $(crypto-obj-y) $(io-obj-y) $(qom-obj-y) $(COMMON_LDADDS)
qemu-io$(EXESUF): qemu-io.o $(authz-obj-y) $(block-obj-y) $(crypto-obj-y) $(io-obj-y) $(qom-obj-y) $(COMMON_LDADDS)
qemu-storage-daemon$(EXESUF): qemu-storage-daemon.o $(authz-obj-y) $(block-obj-y) $(crypto-obj-y) $(chardev-obj-y) $(io-obj-y) $(qom-obj-y) $(storage-daemon-obj-y) $(COMMON_LDADDS)
+vma$(EXESUF): vma.o vma-reader.o $(authz-obj-y) $(block-obj-y) $(crypto-obj-y) $(io-obj-y) $(qom-obj-y) $(COMMON_LDADDS)
+libuuid = cc.find_library('uuid', required: true)
+
# libselinux
selinux = dependency('libselinux',
required: get_option('selinux'),
@@ -4023,6 +4025,9 @@ if have_tools
dependencies: [blockdev, qemuutil, gnutls, selinux],
install: true)
qemu-bridge-helper$(EXESUF): qemu-bridge-helper.o $(COMMON_LDADDS)
+ vma = executable('vma', files('vma.c', 'vma-reader.c') + genh,
+ dependencies: [authz, block, crypto, io, qom], install: true)
+
subdir('storage-daemon')
diff --git a/Makefile.objs b/Makefile.objs
index a1307c12a8..ade7b17a69 100644
--- a/Makefile.objs
+++ b/Makefile.objs
@@ -17,6 +17,7 @@ block-obj-y = block/ nbd/ scsi/
block-obj-y += block.o blockjob.o job.o
block-obj-y += qemu-io-cmds.o
block-obj-$(CONFIG_REPLICATION) += replication.o
+block-obj-y += vma-writer.o
block-obj-m = block/
foreach exe: [ 'qemu-img', 'qemu-io', 'qemu-nbd', 'qemu-storage-daemon']
diff --git a/vma-reader.c b/vma-reader.c
new file mode 100644
index 0000000000..d0b6721812
index 0000000000..2b1d1cdab3
--- /dev/null
+++ b/vma-reader.c
@@ -0,0 +1,870 @@
@@ -0,0 +1,857 @@
+/*
+ * VMA: Virtual Machine Archive
+ *
@@ -84,11 +72,11 @@ index 0000000000..d0b6721812
+#include <glib.h>
+#include <uuid/uuid.h>
+
+#include "qemu-common.h"
+#include "qemu/timer.h"
+#include "qemu/ratelimit.h"
+#include "vma.h"
+#include "block/block.h"
+#include "block/graph-lock.h"
+#include "sysemu/block-backend.h"
+
+static unsigned char zero_vma_block[VMA_BLOCK_SIZE];
@@ -98,7 +86,6 @@ index 0000000000..d0b6721812
+ bool write_zeroes;
+ unsigned long *bitmap;
+ int bitmap_size;
+ bool skip;
+} VmaRestoreState;
+
+struct VmaReader {
@@ -262,9 +249,6 @@ index 0000000000..d0b6721812
+ if (vmar->rstate[i].bitmap) {
+ g_free(vmar->rstate[i].bitmap);
+ }
+ if (vmar->rstate[i].target) {
+ blk_unref(vmar->rstate[i].target);
+ }
+ }
+
+ if (vmar->md5csum) {
@@ -496,14 +480,13 @@ index 0000000000..d0b6721812
+}
+
+static void allocate_rstate(VmaReader *vmar, guint8 dev_id,
+ BlockBackend *target, bool write_zeroes, bool skip)
+ BlockBackend *target, bool write_zeroes)
+{
+ assert(vmar);
+ assert(dev_id);
+
+ vmar->rstate[dev_id].target = target;
+ vmar->rstate[dev_id].write_zeroes = write_zeroes;
+ vmar->rstate[dev_id].skip = skip;
+
+ int64_t size = vmar->devinfo[dev_id].size;
+
@@ -518,30 +501,28 @@ index 0000000000..d0b6721812
+}
+
+int vma_reader_register_bs(VmaReader *vmar, guint8 dev_id, BlockBackend *target,
+ bool write_zeroes, bool skip, Error **errp)
+ bool write_zeroes, Error **errp)
+{
+ assert(vmar);
+ assert(target != NULL || skip);
+ assert(target != NULL);
+ assert(dev_id);
+ assert(vmar->rstate[dev_id].target == NULL && !vmar->rstate[dev_id].skip);
+ assert(vmar->rstate[dev_id].target == NULL);
+
+ if (target != NULL) {
+ int64_t size = blk_getlength(target);
+ int64_t size_diff = size - vmar->devinfo[dev_id].size;
+ int64_t size = blk_getlength(target);
+ int64_t size_diff = size - vmar->devinfo[dev_id].size;
+
+ /* storage types can have different size restrictions, so it
+ * is not always possible to create an image with exact size.
+ * So we tolerate a size difference up to 4MB.
+ */
+ if ((size_diff < 0) || (size_diff > 4*1024*1024)) {
+ error_setg(errp, "vma_reader_register_bs for stream %s failed - "
+ "unexpected size %zd != %zd", vmar->devinfo[dev_id].devname,
+ size, vmar->devinfo[dev_id].size);
+ return -1;
+ }
+ /* storage types can have different size restrictions, so it
+ * is not always possible to create an image with exact size.
+ * So we tolerate a size difference up to 4MB.
+ */
+ if ((size_diff < 0) || (size_diff > 4*1024*1024)) {
+ error_setg(errp, "vma_reader_register_bs for stream %s failed - "
+ "unexpected size %zd != %zd", vmar->devinfo[dev_id].devname,
+ size, vmar->devinfo[dev_id].size);
+ return -1;
+ }
+
+ allocate_rstate(vmar, dev_id, target, write_zeroes, skip);
+ allocate_rstate(vmar, dev_id, target, write_zeroes);
+
+ return 0;
+}
@@ -599,12 +580,10 @@ index 0000000000..d0b6721812
+ }
+ }
+ } else {
+ int res = blk_pwrite(target, sector_num * BDRV_SECTOR_SIZE, nb_sectors * BDRV_SECTOR_SIZE, buf, 0);
+ int res = blk_pwrite(target, sector_num * BDRV_SECTOR_SIZE, buf, nb_sectors * BDRV_SECTOR_SIZE, 0);
+ if (res < 0) {
+ bdrv_graph_rdlock_main_loop();
+ error_setg(errp, "blk_pwrite to %s failed (%d)",
+ bdrv_get_device_name(blk_bs(target)), res);
+ bdrv_graph_rdunlock_main_loop();
+ return -1;
+ }
+ }
@@ -636,23 +615,19 @@ index 0000000000..d0b6721812
+ VmaRestoreState *rstate = &vmar->rstate[dev_id];
+ BlockBackend *target = NULL;
+
+ bool skip = rstate->skip;
+
+ if (dev_id != vmar->vmstate_stream) {
+ target = rstate->target;
+ if (!verify && !target && !skip) {
+ if (!verify && !target) {
+ error_setg(errp, "got wrong dev id %d", dev_id);
+ return -1;
+ }
+
+ if (!skip) {
+ if (vma_reader_get_bitmap(rstate, cluster_num)) {
+ error_setg(errp, "found duplicated cluster %zd for stream %s",
+ cluster_num, vmar->devinfo[dev_id].devname);
+ return -1;
+ }
+ vma_reader_set_bitmap(rstate, cluster_num, 1);
+ if (vma_reader_get_bitmap(rstate, cluster_num)) {
+ error_setg(errp, "found duplicated cluster %zd for stream %s",
+ cluster_num, vmar->devinfo[dev_id].devname);
+ return -1;
+ }
+ vma_reader_set_bitmap(rstate, cluster_num, 1);
+
+ max_sector = vmar->devinfo[dev_id].size/BDRV_SECTOR_SIZE;
+ } else {
@@ -698,7 +673,7 @@ index 0000000000..d0b6721812
+ return -1;
+ }
+
+ if (!verify && !skip) {
+ if (!verify) {
+ int nb_sectors = end_sector - sector_num;
+ if (restore_write_data(vmar, dev_id, target, vmstate_fd,
+ buf + start, sector_num, nb_sectors,
@@ -734,7 +709,7 @@ index 0000000000..d0b6721812
+ return -1;
+ }
+
+ if (!verify && !skip) {
+ if (!verify) {
+ int nb_sectors = end_sector - sector_num;
+ if (restore_write_data(vmar, dev_id, target, vmstate_fd,
+ buf + start, sector_num,
@@ -759,7 +734,7 @@ index 0000000000..d0b6721812
+ vmar->partial_zero_cluster_data += zero_size;
+ }
+
+ if (rstate->write_zeroes && !verify && !skip) {
+ if (rstate->write_zeroes && !verify) {
+ if (restore_write_data(vmar, dev_id, target, vmstate_fd,
+ zero_vma_block, sector_num,
+ nb_sectors, errp) < 0) {
@@ -930,7 +905,7 @@ index 0000000000..d0b6721812
+
+ for (dev_id = 1; dev_id < 255; dev_id++) {
+ if (vma_reader_get_device_info(vmar, dev_id)) {
+ allocate_rstate(vmar, dev_id, NULL, false, false);
+ allocate_rstate(vmar, dev_id, NULL, false);
+ }
+ }
+
@@ -939,10 +914,10 @@ index 0000000000..d0b6721812
+
diff --git a/vma-writer.c b/vma-writer.c
new file mode 100644
index 0000000000..126b296647
index 0000000000..f5d2c5d23c
--- /dev/null
+++ b/vma-writer.c
@@ -0,0 +1,818 @@
@@ -0,0 +1,790 @@
+/*
+ * VMA: Virtual Machine Archive
+ *
@@ -958,8 +933,6 @@ index 0000000000..126b296647
+
+#include "qemu/osdep.h"
+#include <glib.h>
+#include <linux/magic.h>
+#include <sys/vfs.h>
+#include <uuid/uuid.h>
+
+#include "vma.h"
@@ -968,8 +941,6 @@ index 0000000000..126b296647
+#include "qemu/main-loop.h"
+#include "qemu/coroutine.h"
+#include "qemu/cutils.h"
+#include "qemu/error-report.h"
+#include "qemu/memalign.h"
+
+#define DEBUG_VMA 0
+
@@ -1152,10 +1123,10 @@ index 0000000000..126b296647
+{
+ assert(qemu_in_coroutine());
+ AioContext *ctx = qemu_get_current_aio_context();
+ aio_set_fd_handler(ctx, fd, NULL, (IOHandler *)qemu_coroutine_enter, NULL,
+ aio_set_fd_handler(ctx, fd, false, NULL, (IOHandler *)qemu_coroutine_enter,
+ NULL, qemu_coroutine_self());
+ qemu_coroutine_yield();
+ aio_set_fd_handler(ctx, fd, NULL, NULL, NULL, NULL, NULL);
+ aio_set_fd_handler(ctx, fd, false, NULL, NULL, NULL, NULL);
+}
+
+static ssize_t coroutine_fn
@@ -1204,23 +1175,6 @@ index 0000000000..126b296647
+ return (done == bytes) ? bytes : -1;
+}
+
+static bool is_path_tmpfs(const char *path) {
+ struct statfs fs;
+ int ret;
+
+ do {
+ ret = statfs(path, &fs);
+ } while (ret != 0 && errno == EINTR);
+
+ if (ret != 0) {
+ warn_report("statfs call for %s failed, assuming not tmpfs - %s\n",
+ path, strerror(errno));
+ return false;
+ }
+
+ return fs.f_type == TMPFS_MAGIC;
+}
+
+VmaWriter *vma_writer_create(const char *filename, uuid_t uuid, Error **errp)
+{
+ const char *p;
@@ -1259,30 +1213,23 @@ index 0000000000..126b296647
+
+ if ((stat(filename, &st) == 0) && S_ISFIFO(st.st_mode)) {
+ oflags = O_NONBLOCK|O_WRONLY;
+ vmaw->fd = qemu_open(filename, oflags, errp);
+ vmaw->fd = qemu_open(filename, oflags, 0644);
+ } else if (strstart(filename, "/dev/fdset/", &tmp_id_str)) {
+ oflags = O_NONBLOCK|O_WRONLY;
+ vmaw->fd = qemu_open(filename, oflags, errp);
+ vmaw->fd = qemu_open(filename, oflags, 0644);
+ } else if (strstart(filename, "/dev/fdname/", &tmp_id_str)) {
+ vmaw->fd = monitor_get_fd(monitor_cur(), tmp_id_str, errp);
+ vmaw->fd = monitor_get_fd(cur_mon, tmp_id_str, errp);
+ if (vmaw->fd < 0) {
+ goto err;
+ }
+ /* try to use O_NONBLOCK */
+ fcntl(vmaw->fd, F_SETFL, fcntl(vmaw->fd, F_GETFL)|O_NONBLOCK);
+ } else {
+ gchar *dirname = g_path_get_dirname(filename);
+ oflags = O_NONBLOCK|O_WRONLY|O_EXCL;
+ if (!is_path_tmpfs(dirname)) {
+ oflags |= O_DIRECT;
+ }
+ g_free(dirname);
+ vmaw->fd = qemu_create(filename, oflags, 0644, errp);
+ } else {
+ oflags = O_NONBLOCK|O_DIRECT|O_WRONLY|O_CREAT|O_EXCL;
+ vmaw->fd = qemu_open(filename, oflags, 0644);
+ }
+
+ if (vmaw->fd < 0) {
+ error_free(*errp);
+ *errp = NULL;
+ error_setg(errp, "can't open file %s - %s\n", filename,
+ g_strerror(errno));
+ goto err;
@@ -1763,10 +1710,10 @@ index 0000000000..126b296647
+}
diff --git a/vma.c b/vma.c
new file mode 100644
index 0000000000..bb715e9061
index 0000000000..2eea2fc281
--- /dev/null
+++ b/vma.c
@@ -0,0 +1,901 @@
@@ -0,0 +1,839 @@
+/*
+ * VMA: Virtual Machine Archive
+ *
@@ -1784,11 +1731,11 @@ index 0000000000..bb715e9061
+#include <glib.h>
+
+#include "vma.h"
+#include "qemu-common.h"
+#include "qemu/module.h"
+#include "qemu/error-report.h"
+#include "qemu/main-loop.h"
+#include "qemu/cutils.h"
+#include "qemu/memalign.h"
+#include "qapi/qmp/qdict.h"
+#include "sysemu/block-backend.h"
+
@@ -1800,7 +1747,7 @@ index 0000000000..bb715e9061
+ "vma list <filename>\n"
+ "vma config <filename> [-c config]\n"
+ "vma create <filename> [-c config] pathname ...\n"
+ "vma extract <filename> [-d <drive-list>] [-r <fifo>] <targetdir>\n"
+ "vma extract <filename> [-r <fifo>] <targetdir>\n"
+ "vma verify <filename> [-v]\n"
+ ;
+
@@ -1907,7 +1854,6 @@ index 0000000000..bb715e9061
+ char *throttling_group;
+ char *cache;
+ bool write_zero;
+ bool skip;
+} RestoreMap;
+
+static bool try_parse_option(char **line, const char *optname, char **out, const char *inbuf) {
@@ -1945,10 +1891,9 @@ index 0000000000..bb715e9061
+ const char *filename;
+ const char *dirname;
+ const char *readmap = NULL;
+ gchar **drive_list = NULL;
+
+ for (;;) {
+ c = getopt(argc, argv, "hvd:r:");
+ c = getopt(argc, argv, "hvr:");
+ if (c == -1) {
+ break;
+ }
@@ -1957,9 +1902,6 @@ index 0000000000..bb715e9061
+ case 'h':
+ help();
+ break;
+ case 'd':
+ drive_list = g_strsplit(optarg, ",", 254);
+ break;
+ case 'r':
+ readmap = optarg;
+ break;
@@ -2019,89 +1961,76 @@ index 0000000000..bb715e9061
+ char *bps = NULL;
+ char *group = NULL;
+ char *cache = NULL;
+ char *devname = NULL;
+ bool skip = false;
+ uint64_t bps_value = 0;
+ const char *path = NULL;
+ bool write_zero = true;
+
+ if (!line || line[0] == '\0' || !strcmp(line, "done\n")) {
+ break;
+ }
+ int len = strlen(line);
+ if (line[len - 1] == '\n') {
+ line[len - 1] = '\0';
+ len = len - 1;
+ if (len == 0) {
+ if (len == 1) {
+ break;
+ }
+ }
+
+ if (strncmp(line, "skip", 4) == 0) {
+ if (len < 6 || line[4] != '=') {
+ g_error("read map failed - option 'skip' has no value ('%s')",
+ inbuf);
+ } else {
+ devname = line + 5;
+ skip = true;
+ while (1) {
+ if (!try_parse_option(&line, "format", &format, inbuf) &&
+ !try_parse_option(&line, "throttling.bps", &bps, inbuf) &&
+ !try_parse_option(&line, "throttling.group", &group, inbuf) &&
+ !try_parse_option(&line, "cache", &cache, inbuf))
+ {
+ break;
+ }
+ } else {
+ while (1) {
+ if (!try_parse_option(&line, "format", &format, inbuf) &&
+ !try_parse_option(&line, "throttling.bps", &bps, inbuf) &&
+ !try_parse_option(&line, "throttling.group", &group, inbuf) &&
+ !try_parse_option(&line, "cache", &cache, inbuf))
+ {
+ break;
+ }
+ }
+
+ if (bps) {
+ bps_value = verify_u64(bps);
+ g_free(bps);
+ }
+
+ if (line[0] == '0' && line[1] == ':') {
+ path = line + 2;
+ write_zero = false;
+ } else if (line[0] == '1' && line[1] == ':') {
+ path = line + 2;
+ write_zero = true;
+ } else {
+ g_error("read map failed - parse error ('%s')", inbuf);
+ }
+
+ path = extract_devname(path, &devname, -1);
+ }
+
+ uint64_t bps_value = 0;
+ if (bps) {
+ bps_value = verify_u64(bps);
+ g_free(bps);
+ }
+
+ const char *path;
+ bool write_zero;
+ if (line[0] == '0' && line[1] == ':') {
+ path = line + 2;
+ write_zero = false;
+ } else if (line[0] == '1' && line[1] == ':') {
+ path = line + 2;
+ write_zero = true;
+ } else {
+ g_error("read map failed - parse error ('%s')", inbuf);
+ }
+
+ char *devname = NULL;
+ path = extract_devname(path, &devname, -1);
+ if (!devname) {
+ g_error("read map failed - no dev name specified ('%s')",
+ inbuf);
+ }
+
+ RestoreMap *restore_map = g_new0(RestoreMap, 1);
+ restore_map->devname = g_strdup(devname);
+ restore_map->path = g_strdup(path);
+ restore_map->format = format;
+ restore_map->throttling_bps = bps_value;
+ restore_map->throttling_group = group;
+ restore_map->cache = cache;
+ restore_map->write_zero = write_zero;
+ restore_map->skip = skip;
+ RestoreMap *map = g_new0(RestoreMap, 1);
+ map->devname = g_strdup(devname);
+ map->path = g_strdup(path);
+ map->format = format;
+ map->throttling_bps = bps_value;
+ map->throttling_group = group;
+ map->cache = cache;
+ map->write_zero = write_zero;
+
+ g_hash_table_insert(devmap, restore_map->devname, restore_map);
+ g_hash_table_insert(devmap, map->devname, map);
+
+ };
+ }
+
+ int i;
+ int vmstate_fd = -1;
+ bool drive_rename_bitmap[255];
+ memset(drive_rename_bitmap, 0, sizeof(drive_rename_bitmap));
+ guint8 vmstate_stream = 0;
+
+ BlockBackend *blk = NULL;
+
+ for (i = 1; i < 255; i++) {
+ VmaDeviceInfo *di = vma_reader_get_device_info(vmar, i);
+ if (di && (strcmp(di->devname, "vmstate") == 0)) {
+ vmstate_stream = i;
+ char *statefn = g_strdup_printf("%s/vmstate.bin", dirname);
+ vmstate_fd = open(statefn, O_WRONLY|O_CREAT|O_EXCL, 0644);
+ if (vmstate_fd < 0) {
@@ -2117,25 +2046,8 @@ index 0000000000..bb715e9061
+ const char *cache = NULL;
+ int flags = BDRV_O_RDWR;
+ bool write_zero = true;
+ bool skip = false;
+
+ BlockBackend *blk = NULL;
+
+ if (drive_list) {
+ skip = true;
+ int j;
+ for (j = 0; drive_list[j]; j++) {
+ if (strcmp(drive_list[j], di->devname) == 0) {
+ skip = false;
+ drive_rename_bitmap[i] = true;
+ break;
+ }
+ }
+ } else {
+ drive_rename_bitmap[i] = true;
+ }
+
+ if (!skip && readmap) {
+ if (readmap) {
+ RestoreMap *map;
+ map = (RestoreMap *)g_hash_table_lookup(devmap, di->devname);
+ if (map == NULL) {
@@ -2147,8 +2059,7 @@ index 0000000000..bb715e9061
+ throttling_group = map->throttling_group;
+ cache = map->cache;
+ write_zero = map->write_zero;
+ skip = map->skip;
+ } else if (!skip) {
+ } else {
+ devfn = g_strdup_printf("%s/tmp-disk-%s.raw",
+ dirname, di->devname);
+ printf("DEVINFO %s %zd\n", devfn, di->size);
@@ -2166,60 +2077,57 @@ index 0000000000..bb715e9061
+ write_zero = false;
+ }
+
+ if (!skip) {
+ size_t devlen = strlen(devfn);
+ QDict *options = NULL;
+ bool writethrough;
+ if (format) {
+ /* explicit format from commandline */
+ options = qdict_new();
+ qdict_put_str(options, "driver", format);
+ } else if ((devlen > 4 && strcmp(devfn+devlen-4, ".raw") == 0) ||
+ strncmp(devfn, "/dev/", 5) == 0)
+ {
+ /* This part is now deprecated for PVE as well (just as qemu
+ * deprecated not specifying an explicit raw format, too.
+ */
+ /* explicit raw format */
+ options = qdict_new();
+ qdict_put_str(options, "driver", "raw");
+ }
+
+ if (cache && bdrv_parse_cache_mode(cache, &flags, &writethrough)) {
+ g_error("invalid cache option: %s\n", cache);
+ }
+
+ if (errp || !(blk = blk_new_open(devfn, NULL, options, flags, &errp))) {
+ g_error("can't open file %s - %s", devfn,
+ error_get_pretty(errp));
+ }
+
+ if (cache) {
+ blk_set_enable_write_cache(blk, !writethrough);
+ }
+
+ if (throttling_group) {
+ blk_io_limits_enable(blk, throttling_group);
+ }
+
+ if (throttling_bps) {
+ if (!throttling_group) {
+ blk_io_limits_enable(blk, devfn);
+ }
+
+ ThrottleConfig cfg;
+ throttle_config_init(&cfg);
+ cfg.buckets[THROTTLE_BPS_WRITE].avg = throttling_bps;
+ Error *err = NULL;
+ if (!throttle_is_valid(&cfg, &err)) {
+ error_report_err(err);
+ g_error("failed to apply throttling");
+ }
+ blk_set_io_limits(blk, &cfg);
+ }
+ size_t devlen = strlen(devfn);
+ QDict *options = NULL;
+ bool writethrough;
+ if (format) {
+ /* explicit format from commandline */
+ options = qdict_new();
+ qdict_put_str(options, "driver", format);
+ } else if ((devlen > 4 && strcmp(devfn+devlen-4, ".raw") == 0) ||
+ strncmp(devfn, "/dev/", 5) == 0)
+ {
+ /* This part is now deprecated for PVE as well (just as qemu
+ * deprecated not specifying an explicit raw format, too.
+ */
+ /* explicit raw format */
+ options = qdict_new();
+ qdict_put_str(options, "driver", "raw");
+ }
+ if (cache && bdrv_parse_cache_mode(cache, &flags, &writethrough)) {
+ g_error("invalid cache option: %s\n", cache);
+ }
+
+ if (vma_reader_register_bs(vmar, i, blk, write_zero, skip, &errp) < 0) {
+ if (errp || !(blk = blk_new_open(devfn, NULL, options, flags, &errp))) {
+ g_error("can't open file %s - %s", devfn,
+ error_get_pretty(errp));
+ }
+
+ if (cache) {
+ blk_set_enable_write_cache(blk, !writethrough);
+ }
+
+ if (throttling_group) {
+ blk_io_limits_enable(blk, throttling_group);
+ }
+
+ if (throttling_bps) {
+ if (!throttling_group) {
+ blk_io_limits_enable(blk, devfn);
+ }
+
+ ThrottleConfig cfg;
+ throttle_config_init(&cfg);
+ cfg.buckets[THROTTLE_BPS_WRITE].avg = throttling_bps;
+ Error *err = NULL;
+ if (!throttle_is_valid(&cfg, &err)) {
+ error_report_err(err);
+ g_error("failed to apply throttling");
+ }
+ blk_set_io_limits(blk, &cfg);
+ }
+
+ if (vma_reader_register_bs(vmar, i, blk, write_zero, &errp) < 0) {
+ g_error("%s", error_get_pretty(errp));
+ }
+
@@ -2229,10 +2137,6 @@ index 0000000000..bb715e9061
+ }
+ }
+
+ if (drive_list) {
+ g_strfreev(drive_list);
+ }
+
+ if (vma_reader_restore(vmar, vmstate_fd, verbose, &errp) < 0) {
+ g_error("restore failed - %s", error_get_pretty(errp));
+ }
@@ -2240,7 +2144,7 @@ index 0000000000..bb715e9061
+ if (!readmap) {
+ for (i = 1; i < 255; i++) {
+ VmaDeviceInfo *di = vma_reader_get_device_info(vmar, i);
+ if (di && drive_rename_bitmap[i]) {
+ if (di && (i != vmstate_stream)) {
+ char *tmpfn = g_strdup_printf("%s/tmp-disk-%s.raw",
+ dirname, di->devname);
+ char *fn = g_strdup_printf("%s/disk-%s.raw",
@@ -2255,6 +2159,8 @@ index 0000000000..bb715e9061
+
+ vma_reader_destroy(vmar);
+
+ blk_unref(blk);
+
+ bdrv_close_all();
+
+ return ret;
@@ -2339,7 +2245,7 @@ index 0000000000..bb715e9061
+ struct iovec iov;
+ QEMUIOVector qiov;
+
+ int64_t start, end, readlen;
+ int64_t start, end;
+ int ret = 0;
+
+ unsigned char *buf = blk_blockalign(job->target, VMA_CLUSTER_SIZE);
@@ -2353,24 +2259,16 @@ index 0000000000..bb715e9061
+ iov.iov_len = VMA_CLUSTER_SIZE;
+ qemu_iovec_init_external(&qiov, &iov, 1);
+
+ if (start + 1 == end) {
+ memset(buf, 0, VMA_CLUSTER_SIZE);
+ readlen = job->len - start * VMA_CLUSTER_SIZE;
+ assert(readlen > 0 && readlen <= VMA_CLUSTER_SIZE);
+ } else {
+ readlen = VMA_CLUSTER_SIZE;
+ }
+
+ ret = blk_co_preadv(job->target, start * VMA_CLUSTER_SIZE,
+ readlen, &qiov, 0);
+ VMA_CLUSTER_SIZE, &qiov, 0);
+ if (ret < 0) {
+ vma_writer_set_error(job->vmaw, "read error");
+ vma_writer_set_error(job->vmaw, "read error", -1);
+ goto out;
+ }
+
+ size_t zb = 0;
+ if (vma_writer_write(job->vmaw, job->dev_id, start, buf, &zb) < 0) {
+ vma_writer_set_error(job->vmaw, "backup_dump_cb vma_writer_write failed");
+ vma_writer_set_error(job->vmaw, "backup_dump_cb vma_writer_write failed", -1);
+ goto out;
+ }
+ }
@@ -2388,10 +2286,9 @@ index 0000000000..bb715e9061
+
+static int create_archive(int argc, char **argv)
+{
+ int c;
+ int i, c;
+ int verbose = 0;
+ const char *archivename;
+ GList *backup_coroutines = NULL;
+ GList *config_files = NULL;
+
+ for (;;) {
@@ -2480,9 +2377,7 @@ index 0000000000..bb715e9061
+ job->dev_id = dev_id;
+
+ Coroutine *co = qemu_coroutine_create(backup_run, job);
+ // Don't enter coroutine yet, because it might write the header before
+ // all streams can be registered.
+ backup_coroutines = g_list_append(backup_coroutines, co);
+ qemu_coroutine_enter(co);
+ }
+
+ VmaStatus vmastat;
@@ -2490,13 +2385,6 @@ index 0000000000..bb715e9061
+ int last_percent = -1;
+
+ if (devcount) {
+ GList *entry = backup_coroutines;
+ while (entry && entry->data) {
+ Coroutine *co = entry->data;
+ qemu_coroutine_enter(co);
+ entry = g_list_next(entry);
+ }
+
+ while (1) {
+ main_loop_wait(false);
+ vma_writer_get_status(vmaw, &vmastat);
@@ -2546,7 +2434,6 @@ index 0000000000..bb715e9061
+ vma_writer_get_status(vmaw, &vmastat);
+
+ if (verbose) {
+ int i;
+ for (i = 0; i < 256; i++) {
+ VmaStreamInfo *si = &vmastat.stream_info[i];
+ if (si->size) {
@@ -2562,8 +2449,6 @@ index 0000000000..bb715e9061
+ g_error("creating vma archive failed");
+ }
+
+ g_list_free(backup_coroutines);
+ g_list_free(config_files);
+ vma_writer_destroy(vmaw);
+ return 0;
+}
@@ -2670,7 +2555,7 @@ index 0000000000..bb715e9061
+}
diff --git a/vma.h b/vma.h
new file mode 100644
index 0000000000..86d2873aa5
index 0000000000..c895c97f6d
--- /dev/null
+++ b/vma.h
@@ -0,0 +1,150 @@
@@ -2808,7 +2693,7 @@ index 0000000000..86d2873aa5
+int coroutine_fn vma_writer_flush_output(VmaWriter *vmaw);
+
+int vma_writer_get_status(VmaWriter *vmaw, VmaStatus *status);
+void vma_writer_set_error(VmaWriter *vmaw, const char *fmt, ...) G_GNUC_PRINTF(2, 3);
+void vma_writer_set_error(VmaWriter *vmaw, const char *fmt, ...);
+
+
+VmaReader *vma_reader_create(const char *filename, Error **errp);
@@ -2818,7 +2703,7 @@ index 0000000000..86d2873aa5
+VmaDeviceInfo *vma_reader_get_device_info(VmaReader *vmar, guint8 dev_id);
+int vma_reader_register_bs(VmaReader *vmar, guint8 dev_id,
+ BlockBackend *target, bool write_zeroes,
+ bool skip, Error **errp);
+ Error **errp);
+int vma_reader_restore(VmaReader *vmar, int vmstate_fd, bool verbose,
+ Error **errp);
+int vma_reader_verify(VmaReader *vmar, bool verbose, Error **errp);

View File

@@ -1,59 +0,0 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Fabian Ebner <f.ebner@proxmox.com>
Date: Wed, 2 Mar 2022 08:35:05 +0100
Subject: [PATCH] block/backup: move bcs bitmap initialization to job creation
For backing up the state of multiple disks from the same time, a job
for each disk has to be created. It's convenient if the jobs don't
have to be started at the same time and if operation of the VM can be
resumed after job creation. This would lead to a window between job
creation and running the job, where writes can happen. But no writes
should happen between setting up the copy-before-write filter and
setting up the block copy state bitmap, because then new writes would
just pass through.
Commit 06e0a9c16405c0a4c1eca33cf286cc04c42066a2 moved initalization of
the bitmap to setting up the copy-before-write filter when sync_mode
is not MIRROR_SYNC_MODE_BITMAP. Ensure that the bitmap is initialized
upon job creation for the remaining case too, by moving the
backup_init_bcs_bitmap call to backup_job_create.
Signed-off-by: Fabian Ebner <f.ebner@proxmox.com>
Signed-off-by: Thomas Lamprecht <t.lamprecht@proxmox.com>
---
block/backup.c | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)
diff --git a/block/backup.c b/block/backup.c
index ec29d6b810..270957c0cd 100644
--- a/block/backup.c
+++ b/block/backup.c
@@ -237,8 +237,8 @@ static void backup_init_bcs_bitmap(BackupBlockJob *job)
true);
} else if (job->sync_mode == MIRROR_SYNC_MODE_TOP) {
/*
- * We can't hog the coroutine to initialize this thoroughly.
- * Set a flag and resume work when we are able to yield safely.
+ * Initialization is costly here. Simply set a flag and let the
+ * backup_run coroutine resume work once it can yield safely.
*/
block_copy_set_skip_unallocated(job->bcs, true);
}
@@ -252,8 +252,6 @@ static int coroutine_fn backup_run(Job *job, Error **errp)
BackupBlockJob *s = container_of(job, BackupBlockJob, common.job);
int ret;
- backup_init_bcs_bitmap(s);
-
if (s->sync_mode == MIRROR_SYNC_MODE_TOP) {
int64_t offset = 0;
int64_t count;
@@ -501,6 +499,8 @@ BlockJob *backup_job_create(const char *job_id, BlockDriverState *bs,
&error_abort);
bdrv_graph_wrunlock();
+ backup_init_bcs_bitmap(job);
+
return &job->common;
error:

View File

@@ -7,25 +7,33 @@ Subject: [PATCH] PVE-Backup: add backup-dump block driver
- move BackupBlockJob declaration from block/backup.c to include/block/block_int.h
- block/backup.c - backup-job-create: also consider source cluster size
- job.c: make job_should_pause non-static
Signed-off-by: Thomas Lamprecht <t.lamprecht@proxmox.com>
[FE: adapt to coroutine changes]
Signed-off-by: Fiona Ebner <f.ebner@proxmox.com>
---
block/backup-dump.c | 172 +++++++++++++++++++++++++++++++
block/backup.c | 30 ++----
block/meson.build | 1 +
include/block/block_int-common.h | 35 +++++++
job.c | 3 +-
5 files changed, 218 insertions(+), 23 deletions(-)
block/Makefile.objs | 1 +
block/backup-dump.c | 168 ++++++++++++++++++++++++++++++++++++++
block/backup.c | 23 ++----
include/block/block_int.h | 30 +++++++
job.c | 3 +-
5 files changed, 206 insertions(+), 19 deletions(-)
create mode 100644 block/backup-dump.c
diff --git a/block/Makefile.objs b/block/Makefile.objs
index d1a9227b8f..9ea0477d0b 100644
--- a/block/Makefile.objs
+++ b/block/Makefile.objs
@@ -33,6 +33,7 @@ block-obj-$(CONFIG_CURL) += curl.o
block-obj-$(CONFIG_RBD) += rbd.o
block-obj-$(CONFIG_GLUSTERFS) += gluster.o
block-obj-$(CONFIG_LIBSSH) += ssh.o
+block-obj-y += backup-dump.o
block-obj-y += accounting.o dirty-bitmap.o
block-obj-y += write-threshold.o
block-obj-y += backup.o
diff --git a/block/backup-dump.c b/block/backup-dump.c
new file mode 100644
index 0000000000..e46abf1070
index 0000000000..93d7f46950
--- /dev/null
+++ b/block/backup-dump.c
@@ -0,0 +1,172 @@
@@ -0,0 +1,168 @@
+/*
+ * BlockDriver to send backup data stream to a callback function
+ *
@@ -37,8 +45,7 @@ index 0000000000..e46abf1070
+ */
+
+#include "qemu/osdep.h"
+
+#include "qapi/qmp/qdict.h"
+#include "qemu-common.h"
+#include "qom/object_interfaces.h"
+#include "block/block_int.h"
+
@@ -49,8 +56,7 @@ index 0000000000..e46abf1070
+ void *dump_cb_data;
+} BDRVBackupDumpState;
+
+static coroutine_fn int qemu_backup_dump_co_get_info(BlockDriverState *bs,
+ BlockDriverInfo *bdi)
+static int qemu_backup_dump_get_info(BlockDriverState *bs, BlockDriverInfo *bdi)
+{
+ BDRVBackupDumpState *s = bs->opaque;
+
@@ -91,7 +97,7 @@ index 0000000000..e46abf1070
+ /* Nothing to do. */
+}
+
+static coroutine_fn int64_t qemu_backup_dump_co_getlength(BlockDriverState *bs)
+static int64_t qemu_backup_dump_getlength(BlockDriverState *bs)
+{
+ BDRVBackupDumpState *s = bs->opaque;
+
@@ -151,8 +157,8 @@ index 0000000000..e46abf1070
+
+ .bdrv_close = qemu_backup_dump_close,
+ .bdrv_has_zero_init = bdrv_has_zero_init_1,
+ .bdrv_co_getlength = qemu_backup_dump_co_getlength,
+ .bdrv_co_get_info = qemu_backup_dump_co_get_info,
+ .bdrv_getlength = qemu_backup_dump_getlength,
+ .bdrv_get_info = qemu_backup_dump_get_info,
+
+ .bdrv_co_writev = qemu_backup_dump_co_writev,
+
@@ -171,7 +177,7 @@ index 0000000000..e46abf1070
+block_init(bdrv_backup_dump_init);
+
+
+BlockDriverState *coroutine_fn bdrv_co_backup_dump_create(
+BlockDriverState *bdrv_backup_dump_create(
+ int dump_cb_block_size,
+ uint64_t byte_size,
+ BackupDumpFunc *dump_cb,
@@ -179,11 +185,9 @@ index 0000000000..e46abf1070
+ Error **errp)
+{
+ BDRVBackupDumpState *state;
+ BlockDriverState *bs = bdrv_new_open_driver(
+ &bdrv_backup_dump_drive, NULL, BDRV_O_RDWR, errp);
+
+ QDict *options = qdict_new();
+ qdict_put_str(options, "driver", "backup-dump-drive");
+
+ BlockDriverState *bs = bdrv_co_open(NULL, NULL, options, BDRV_O_RDWR, errp);
+ if (!bs) {
+ return NULL;
+ }
@@ -199,18 +203,17 @@ index 0000000000..e46abf1070
+ return bs;
+}
diff --git a/block/backup.c b/block/backup.c
index 270957c0cd..16d611c4ca 100644
index 4f13bb20a5..cd42236b79 100644
--- a/block/backup.c
+++ b/block/backup.c
@@ -29,28 +29,6 @@
@@ -32,24 +32,6 @@
#include "block/copy-before-write.h"
#define BACKUP_CLUSTER_SIZE_DEFAULT (1 << 16)
-typedef struct BackupBlockJob {
- BlockJob common;
- BlockDriverState *cbw;
- BlockDriverState *backup_top;
- BlockDriverState *source_bs;
- BlockDriverState *target_bs;
-
- BdrvDirtyBitmap *sync_bitmap;
-
@@ -219,64 +222,38 @@ index 270957c0cd..16d611c4ca 100644
- BlockdevOnError on_source_error;
- BlockdevOnError on_target_error;
- uint64_t len;
- uint64_t bytes_read;
- int64_t cluster_size;
- BackupPerf perf;
-
- BlockCopyState *bcs;
-
- bool wait;
- BlockCopyCallState *bg_bcs_call;
-} BackupBlockJob;
-
static const BlockJobDriver backup_job_driver;
static void backup_cleanup_sync_bitmap(BackupBlockJob *job, int ret)
@@ -461,6 +439,14 @@ BlockJob *backup_job_create(const char *job_id, BlockDriverState *bs,
static void backup_progress_bytes_callback(int64_t bytes, void *opaque)
@@ -422,6 +404,11 @@ BlockJob *backup_job_create(const char *job_id, BlockDriverState *bs,
goto error;
}
cluster_size = block_copy_cluster_size(bcs);
+ if (cluster_size < 0) {
+ goto error;
+ }
+
+ BlockDriverInfo bdi;
+ if (bdrv_get_info(bs, &bdi) == 0) {
+ cluster_size = MAX(cluster_size, bdi.cluster_size);
+ }
if (perf->max_chunk && perf->max_chunk < cluster_size) {
error_setg(errp, "Required max-chunk (%" PRIi64 ") is less than backup "
diff --git a/block/meson.build b/block/meson.build
index b245daa98e..e99914eaa4 100644
--- a/block/meson.build
+++ b/block/meson.build
@@ -4,6 +4,7 @@ block_ss.add(files(
'aio_task.c',
'amend.c',
'backup.c',
+ 'backup-dump.c',
'blkdebug.c',
'blklogwrites.c',
'blkverify.c',
diff --git a/include/block/block_int-common.h b/include/block/block_int-common.h
index 761276127e..b3e6697613 100644
--- a/include/block/block_int-common.h
+++ b/include/block/block_int-common.h
@@ -26,6 +26,7 @@
#include "block/aio.h"
#include "block/block-common.h"
+#include "block/block-copy.h"
#include "block/block-global-state.h"
#include "block/snapshot.h"
#include "qemu/iov.h"
@@ -60,6 +61,40 @@
+
/*
* If source is in backing chain of target assume that target is going to be
* used for "image fleecing", i.e. it should represent a kind of snapshot of
diff --git a/include/block/block_int.h b/include/block/block_int.h
index 38dec0275b..1efb1f527c 100644
--- a/include/block/block_int.h
+++ b/include/block/block_int.h
@@ -62,6 +62,36 @@
#define BLOCK_PROBE_BUF_SIZE 512
+typedef int BackupDumpFunc(void *opaque, uint64_t offset, uint64_t bytes, const void *buf);
+
+BlockDriverState *coroutine_fn bdrv_co_backup_dump_create(
+BlockDriverState *bdrv_backuo_dump_create(
+ int dump_cb_block_size,
+ uint64_t byte_size,
+ BackupDumpFunc *dump_cb,
@@ -288,9 +265,8 @@ index 761276127e..b3e6697613 100644
+typedef struct BlockCopyState BlockCopyState;
+typedef struct BackupBlockJob {
+ BlockJob common;
+ BlockDriverState *cbw;
+ BlockDriverState *backup_top;
+ BlockDriverState *source_bs;
+ BlockDriverState *target_bs;
+
+ BdrvDirtyBitmap *sync_bitmap;
+
@@ -299,29 +275,26 @@ index 761276127e..b3e6697613 100644
+ BlockdevOnError on_source_error;
+ BlockdevOnError on_target_error;
+ uint64_t len;
+ uint64_t bytes_read;
+ int64_t cluster_size;
+ BackupPerf perf;
+
+ BlockCopyState *bcs;
+
+ bool wait;
+ BlockCopyCallState *bg_bcs_call;
+} BackupBlockJob;
+
enum BdrvTrackedRequestType {
BDRV_TRACKED_READ,
BDRV_TRACKED_WRITE,
diff --git a/job.c b/job.c
index 660ce22c56..baf54c8d60 100644
index 53be57a3a0..b8139c80a4 100644
--- a/job.c
+++ b/job.c
@@ -331,7 +331,8 @@ static bool job_started_locked(Job *job)
@@ -269,7 +269,8 @@ static bool job_started(Job *job)
return job->co;
}
/* Called with job_mutex held. */
-static bool job_should_pause_locked(Job *job)
+bool job_should_pause_locked(Job *job);
+bool job_should_pause_locked(Job *job)
-static bool job_should_pause(Job *job)
+bool job_should_pause(Job *job);
+bool job_should_pause(Job *job)
{
return job->pause_count > 0;
}

File diff suppressed because it is too large Load Diff

View File

@@ -5,35 +5,40 @@ Subject: [PATCH] PVE-Backup: pbs-restore - new command to restore from proxmox
backup server
Signed-off-by: Thomas Lamprecht <t.lamprecht@proxmox.com>
[WB: add namespace support]
Signed-off-by: Wolfgang Bumiller <w.bumiller@proxmox.com>
---
meson.build | 4 +
pbs-restore.c | 236 ++++++++++++++++++++++++++++++++++++++++++++++++++
2 files changed, 240 insertions(+)
Makefile | 4 +-
pbs-restore.c | 217 ++++++++++++++++++++++++++++++++++++++++++++++++++
2 files changed, 220 insertions(+), 1 deletion(-)
create mode 100644 pbs-restore.c
diff --git a/meson.build b/meson.build
index d16b97cf3c..6de51c34cb 100644
--- a/meson.build
+++ b/meson.build
@@ -4029,6 +4029,10 @@ if have_tools
vma = executable('vma', files('vma.c', 'vma-reader.c') + genh,
dependencies: [authz, block, crypto, io, qom], install: true)
diff --git a/Makefile b/Makefile
index aec216968d..b73da29f24 100644
--- a/Makefile
+++ b/Makefile
@@ -479,7 +479,7 @@ dummy := $(call unnest-vars,, \
+ pbs_restore = executable('pbs-restore', files('pbs-restore.c') + genh,
+ dependencies: [authz, block, crypto, io, qom,
+ libproxmox_backup_qemu], install: true)
+
subdir('storage-daemon')
include $(SRC_PATH)/tests/Makefile.include
-all: $(DOCS) $(if $(BUILD_DOCS),sphinxdocs) $(TOOLS) vma$(EXESUF) $(HELPERS-y) recurse-all modules $(vhost-user-json-y)
+all: $(DOCS) $(if $(BUILD_DOCS),sphinxdocs) $(TOOLS) vma$(EXESUF) pbs-restore$(EXESUF) $(HELPERS-y) recurse-all modules $(vhost-user-json-y)
qemu-version.h: FORCE
$(call quiet-command, \
@@ -604,6 +604,8 @@ qemu-io$(EXESUF): qemu-io.o $(authz-obj-y) $(block-obj-y) $(crypto-obj-y) $(io-o
qemu-storage-daemon$(EXESUF): qemu-storage-daemon.o $(authz-obj-y) $(block-obj-y) $(crypto-obj-y) $(chardev-obj-y) $(io-obj-y) $(qom-obj-y) $(storage-daemon-obj-y) $(COMMON_LDADDS)
qemu-storage-daemon$(EXESUF): LIBS += -lproxmox_backup_qemu
vma$(EXESUF): vma.o vma-reader.o $(authz-obj-y) $(block-obj-y) $(crypto-obj-y) $(io-obj-y) $(qom-obj-y) $(COMMON_LDADDS)
+pbs-restore$(EXESUF): pbs-restore.o $(authz-obj-y) $(block-obj-y) $(crypto-obj-y) $(io-obj-y) $(qom-obj-y) $(COMMON_LDADDS)
+pbs-restore$(EXESUF): LIBS += -lproxmox_backup_qemu
qemu-bridge-helper$(EXESUF): qemu-bridge-helper.o $(COMMON_LDADDS)
foreach exe: [ 'qemu-img', 'qemu-io', 'qemu-nbd', 'qemu-storage-daemon']
diff --git a/pbs-restore.c b/pbs-restore.c
new file mode 100644
index 0000000000..f03d9bab8d
index 0000000000..4bf37ef1fa
--- /dev/null
+++ b/pbs-restore.c
@@ -0,0 +1,236 @@
@@ -0,0 +1,217 @@
+/*
+ * Qemu image restore helper for Proxmox Backup
+ *
@@ -52,6 +57,7 @@ index 0000000000..f03d9bab8d
+#include <getopt.h>
+#include <string.h>
+
+#include "qemu-common.h"
+#include "qemu/module.h"
+#include "qemu/error-report.h"
+#include "qemu/main-loop.h"
@@ -65,7 +71,7 @@ index 0000000000..f03d9bab8d
+static void help(void)
+{
+ const char *help_msg =
+ "usage: pbs-restore [--repository <repo>] [--ns namespace] snapshot archive-name target [command options]\n"
+ "usage: pbs-restore [--repository <repo>] snapshot archive-name target [command options]\n"
+ ;
+
+ printf("%s", help_msg);
@@ -97,7 +103,7 @@ index 0000000000..f03d9bab8d
+ }
+ res = blk_pwrite_zeroes(callback_data->target, offset, data_len, 0);
+ } else {
+ res = blk_pwrite(callback_data->target, offset, data_len, data, 0);
+ res = blk_pwrite(callback_data->target, offset, data, data_len, 0);
+ }
+
+ if (res < 0) {
@@ -113,7 +119,6 @@ index 0000000000..f03d9bab8d
+ Error *main_loop_err = NULL;
+ const char *format = "raw";
+ const char *repository = NULL;
+ const char *backup_ns = NULL;
+ const char *keyfile = NULL;
+ int verbose = false;
+ bool skip_zero = false;
@@ -127,7 +132,6 @@ index 0000000000..f03d9bab8d
+ {"verbose", no_argument, 0, 'v'},
+ {"format", required_argument, 0, 'f'},
+ {"repository", required_argument, 0, 'r'},
+ {"ns", required_argument, 0, 'n'},
+ {"keyfile", required_argument, 0, 'k'},
+ {0, 0, 0, 0}
+ };
@@ -148,9 +152,6 @@ index 0000000000..f03d9bab8d
+ case 'r':
+ repository = g_strdup(argv[optind - 1]);
+ break;
+ case 'n':
+ backup_ns = g_strdup(argv[optind - 1]);
+ break;
+ case 'k':
+ keyfile = g_strdup(argv[optind - 1]);
+ break;
@@ -201,27 +202,13 @@ index 0000000000..f03d9bab8d
+ fprintf(stderr, "connecting to repository '%s'\n", repository);
+ }
+ char *pbs_error = NULL;
+ ProxmoxRestoreHandle *conn = proxmox_restore_new_ns(
+ repository,
+ snapshot,
+ backup_ns,
+ password,
+ keyfile,
+ key_password,
+ fingerprint,
+ &pbs_error
+ );
+ ProxmoxRestoreHandle *conn = proxmox_restore_connect(
+ repository, snapshot, password, keyfile, key_password, fingerprint, &pbs_error);
+ if (conn == NULL) {
+ fprintf(stderr, "restore failed: %s\n", pbs_error);
+ return -1;
+ }
+
+ int res = proxmox_restore_connect(conn, &pbs_error);
+ if (res < 0 || pbs_error) {
+ fprintf(stderr, "restore failed (connection error): %s\n", pbs_error);
+ return -1;
+ }
+
+ QDict *options = qdict_new();
+
+ if (format) {
@@ -252,7 +239,7 @@ index 0000000000..f03d9bab8d
+ fprintf(stderr, "starting to restore snapshot '%s'\n", snapshot);
+ fflush(stderr); // ensure we do not get printed after the progress log
+ }
+ res = proxmox_restore_image(
+ int res = proxmox_restore_image(
+ conn,
+ archive_name,
+ write_callback,
@@ -261,7 +248,6 @@ index 0000000000..f03d9bab8d
+ verbose);
+
+ proxmox_restore_disconnect(conn);
+ blk_unref(blk);
+
+ if (res < 0) {
+ fprintf(stderr, "restore failed: %s\n", pbs_error);

File diff suppressed because it is too large Load Diff

View File

@@ -0,0 +1,914 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Dietmar Maurer <dietmar@proxmox.com>
Date: Mon, 6 Apr 2020 12:17:00 +0200
Subject: [PATCH] PVE-Backup: avoid coroutines to fix AIO freeze, cleanups
We observed various AIO pool loop freezes, so we decided to avoid
coroutines and restrict ourselfes using similar code as upstream
(see blockdev.c: do_backup_common).
* avoid coroutine for job related code (causes hangs with iothreads)
- We then acquire/release all mutexes outside coroutines now, so we can now
correctly use a normal mutex.
* split pvebackup_co_dump_cb into:
- pvebackup_co_dump_pbs_cb and
- pvebackup_co_dump_pbs_cb
* new helper functions
- pvebackup_propagate_error
- pvebackup_error_or_canceled
- pvebackup_add_transfered_bytes
* avoid cancel flag (not needed)
* simplify backup_cancel logic
There is progress on upstream to support running qmp commands inside
coroutines, see:
https://lists.gnu.org/archive/html/qemu-devel/2020-02/msg04852.html
We should consider using that when it is available in upstream qemu.
Signed-off-by: Dietmar Maurer <dietmar@proxmox.com>
---
pve-backup.c | 638 ++++++++++++++++++++++++++-------------------------
1 file changed, 320 insertions(+), 318 deletions(-)
diff --git a/pve-backup.c b/pve-backup.c
index 55441eb9d1..d40f3f2fd6 100644
--- a/pve-backup.c
+++ b/pve-backup.c
@@ -11,11 +11,27 @@
/* PVE backup state and related function */
+/*
+ * Note: A resume from a qemu_coroutine_yield can happen in a different thread,
+ * so you may not use normal mutexes within coroutines:
+ *
+ * ---bad-example---
+ * qemu_rec_mutex_lock(lock)
+ * ...
+ * qemu_coroutine_yield() // wait for something
+ * // we are now inside a different thread
+ * qemu_rec_mutex_unlock(lock) // Crash - wrong thread!!
+ * ---end-bad-example--
+ *
+ * ==> Always use CoMutext inside coroutines.
+ * ==> Never acquire/release AioContext withing coroutines (because that use QemuRecMutex)
+ *
+ */
static struct PVEBackupState {
struct {
- // Everithing accessed from qmp command, protected using rwlock
- CoRwlock rwlock;
+ // Everithing accessed from qmp_backup_query command is protected using lock
+ QemuMutex lock;
Error *error;
time_t start_time;
time_t end_time;
@@ -25,19 +41,20 @@ static struct PVEBackupState {
size_t total;
size_t transferred;
size_t zero_bytes;
- bool cancel;
} stat;
int64_t speed;
VmaWriter *vmaw;
ProxmoxBackupHandle *pbs;
GList *di_list;
- CoMutex backup_mutex;
+ QemuMutex backup_mutex;
+ CoMutex dump_callback_mutex;
} backup_state;
static void pvebackup_init(void)
{
- qemu_co_rwlock_init(&backup_state.stat.rwlock);
- qemu_co_mutex_init(&backup_state.backup_mutex);
+ qemu_mutex_init(&backup_state.stat.lock);
+ qemu_mutex_init(&backup_state.backup_mutex);
+ qemu_co_mutex_init(&backup_state.dump_callback_mutex);
}
// initialize PVEBackupState at startup
@@ -52,10 +69,54 @@ typedef struct PVEBackupDevInfo {
BlockDriverState *target;
} PVEBackupDevInfo;
-static void pvebackup_co_run_next_job(void);
+static void pvebackup_run_next_job(void);
+static BlockJob *
+lookup_active_block_job(PVEBackupDevInfo *di)
+{
+ if (!di->completed && di->bs) {
+ for (BlockJob *job = block_job_next(NULL); job; job = block_job_next(job)) {
+ if (job->job.driver->job_type != JOB_TYPE_BACKUP) {
+ continue;
+ }
+
+ BackupBlockJob *bjob = container_of(job, BackupBlockJob, common);
+ if (bjob && bjob->source_bs == di->bs) {
+ return job;
+ }
+ }
+ }
+ return NULL;
+}
+
+static void pvebackup_propagate_error(Error *err)
+{
+ qemu_mutex_lock(&backup_state.stat.lock);
+ error_propagate(&backup_state.stat.error, err);
+ qemu_mutex_unlock(&backup_state.stat.lock);
+}
+
+static bool pvebackup_error_or_canceled(void)
+{
+ qemu_mutex_lock(&backup_state.stat.lock);
+ bool error_or_canceled = !!backup_state.stat.error;
+ qemu_mutex_unlock(&backup_state.stat.lock);
+
+ return error_or_canceled;
+}
+
+static void pvebackup_add_transfered_bytes(size_t transferred, size_t zero_bytes)
+{
+ qemu_mutex_lock(&backup_state.stat.lock);
+ backup_state.stat.zero_bytes += zero_bytes;
+ backup_state.stat.transferred += transferred;
+ qemu_mutex_unlock(&backup_state.stat.lock);
+}
+
+// This may get called from multiple coroutines in multiple io-threads
+// Note1: this may get called after job_cancel()
static int coroutine_fn
-pvebackup_co_dump_cb(
+pvebackup_co_dump_pbs_cb(
void *opaque,
uint64_t start,
uint64_t bytes,
@@ -67,137 +128,127 @@ pvebackup_co_dump_cb(
const unsigned char *buf = pbuf;
PVEBackupDevInfo *di = opaque;
- qemu_co_rwlock_rdlock(&backup_state.stat.rwlock);
- bool cancel = backup_state.stat.cancel;
- qemu_co_rwlock_unlock(&backup_state.stat.rwlock);
+ assert(backup_state.pbs);
+
+ Error *local_err = NULL;
+ int pbs_res = -1;
+
+ qemu_co_mutex_lock(&backup_state.dump_callback_mutex);
- if (cancel) {
- return size; // return success
+ // avoid deadlock if job is cancelled
+ if (pvebackup_error_or_canceled()) {
+ qemu_co_mutex_unlock(&backup_state.dump_callback_mutex);
+ return -1;
}
- qemu_co_mutex_lock(&backup_state.backup_mutex);
+ pbs_res = proxmox_backup_co_write_data(backup_state.pbs, di->dev_id, buf, start, size, &local_err);
+ qemu_co_mutex_unlock(&backup_state.dump_callback_mutex);
- int ret = -1;
+ if (pbs_res < 0) {
+ pvebackup_propagate_error(local_err);
+ return pbs_res;
+ } else {
+ pvebackup_add_transfered_bytes(size, !buf ? size : 0);
+ }
- if (backup_state.vmaw) {
- size_t zero_bytes = 0;
- uint64_t remaining = size;
-
- uint64_t cluster_num = start / VMA_CLUSTER_SIZE;
- if ((cluster_num * VMA_CLUSTER_SIZE) != start) {
- qemu_co_rwlock_rdlock(&backup_state.stat.rwlock);
- if (!backup_state.stat.error) {
- qemu_co_rwlock_upgrade(&backup_state.stat.rwlock);
- error_setg(&backup_state.stat.error,
- "got unaligned write inside backup dump "
- "callback (sector %ld)", start);
- }
- qemu_co_rwlock_unlock(&backup_state.stat.rwlock);
- qemu_co_mutex_unlock(&backup_state.backup_mutex);
- return -1; // not aligned to cluster size
- }
+ return size;
+}
- while (remaining > 0) {
- ret = vma_writer_write(backup_state.vmaw, di->dev_id, cluster_num,
- buf, &zero_bytes);
- ++cluster_num;
- if (buf) {
- buf += VMA_CLUSTER_SIZE;
- }
- if (ret < 0) {
- qemu_co_rwlock_rdlock(&backup_state.stat.rwlock);
- if (!backup_state.stat.error) {
- qemu_co_rwlock_upgrade(&backup_state.stat.rwlock);
- vma_writer_error_propagate(backup_state.vmaw, &backup_state.stat.error);
- }
- qemu_co_rwlock_unlock(&backup_state.stat.rwlock);
+// This may get called from multiple coroutines in multiple io-threads
+static int coroutine_fn
+pvebackup_co_dump_vma_cb(
+ void *opaque,
+ uint64_t start,
+ uint64_t bytes,
+ const void *pbuf)
+{
+ assert(qemu_in_coroutine());
- qemu_co_mutex_unlock(&backup_state.backup_mutex);
- return ret;
- } else {
- qemu_co_rwlock_wrlock(&backup_state.stat.rwlock);
- backup_state.stat.zero_bytes += zero_bytes;
- if (remaining >= VMA_CLUSTER_SIZE) {
- backup_state.stat.transferred += VMA_CLUSTER_SIZE;
- remaining -= VMA_CLUSTER_SIZE;
- } else {
- backup_state.stat.transferred += remaining;
- remaining = 0;
- }
- qemu_co_rwlock_unlock(&backup_state.stat.rwlock);
- }
- }
- } else if (backup_state.pbs) {
- Error *local_err = NULL;
- int pbs_res = -1;
+ const uint64_t size = bytes;
+ const unsigned char *buf = pbuf;
+ PVEBackupDevInfo *di = opaque;
- pbs_res = proxmox_backup_co_write_data(backup_state.pbs, di->dev_id, buf, start, size, &local_err);
+ int ret = -1;
- qemu_co_rwlock_wrlock(&backup_state.stat.rwlock);
+ assert(backup_state.vmaw);
- if (pbs_res < 0) {
- error_propagate(&backup_state.stat.error, local_err);
- qemu_co_rwlock_unlock(&backup_state.stat.rwlock);
- qemu_co_mutex_unlock(&backup_state.backup_mutex);
- return pbs_res;
- } else {
- if (!buf) {
- backup_state.stat.zero_bytes += size;
- }
- backup_state.stat.transferred += size;
+ uint64_t remaining = size;
+
+ uint64_t cluster_num = start / VMA_CLUSTER_SIZE;
+ if ((cluster_num * VMA_CLUSTER_SIZE) != start) {
+ Error *local_err = NULL;
+ error_setg(&local_err,
+ "got unaligned write inside backup dump "
+ "callback (sector %ld)", start);
+ pvebackup_propagate_error(local_err);
+ return -1; // not aligned to cluster size
+ }
+
+ while (remaining > 0) {
+ qemu_co_mutex_lock(&backup_state.dump_callback_mutex);
+ // avoid deadlock if job is cancelled
+ if (pvebackup_error_or_canceled()) {
+ qemu_co_mutex_unlock(&backup_state.dump_callback_mutex);
+ return -1;
}
- qemu_co_rwlock_unlock(&backup_state.stat.rwlock);
+ size_t zero_bytes = 0;
+ ret = vma_writer_write(backup_state.vmaw, di->dev_id, cluster_num, buf, &zero_bytes);
+ qemu_co_mutex_unlock(&backup_state.dump_callback_mutex);
- } else {
- qemu_co_rwlock_wrlock(&backup_state.stat.rwlock);
- if (!buf) {
- backup_state.stat.zero_bytes += size;
+ ++cluster_num;
+ if (buf) {
+ buf += VMA_CLUSTER_SIZE;
+ }
+ if (ret < 0) {
+ Error *local_err = NULL;
+ vma_writer_error_propagate(backup_state.vmaw, &local_err);
+ pvebackup_propagate_error(local_err);
+ return ret;
+ } else {
+ if (remaining >= VMA_CLUSTER_SIZE) {
+ assert(ret == VMA_CLUSTER_SIZE);
+ pvebackup_add_transfered_bytes(VMA_CLUSTER_SIZE, zero_bytes);
+ remaining -= VMA_CLUSTER_SIZE;
+ } else {
+ assert(ret == remaining);
+ pvebackup_add_transfered_bytes(remaining, zero_bytes);
+ remaining = 0;
+ }
}
- backup_state.stat.transferred += size;
- qemu_co_rwlock_unlock(&backup_state.stat.rwlock);
}
- qemu_co_mutex_unlock(&backup_state.backup_mutex);
-
return size;
}
-static void coroutine_fn pvebackup_co_cleanup(void)
+// assumes the caller holds backup_mutex
+static void coroutine_fn pvebackup_co_cleanup(void *unused)
{
assert(qemu_in_coroutine());
- qemu_co_mutex_lock(&backup_state.backup_mutex);
-
- qemu_co_rwlock_wrlock(&backup_state.stat.rwlock);
+ qemu_mutex_lock(&backup_state.stat.lock);
backup_state.stat.end_time = time(NULL);
- qemu_co_rwlock_unlock(&backup_state.stat.rwlock);
+ qemu_mutex_unlock(&backup_state.stat.lock);
if (backup_state.vmaw) {
Error *local_err = NULL;
vma_writer_close(backup_state.vmaw, &local_err);
if (local_err != NULL) {
- qemu_co_rwlock_wrlock(&backup_state.stat.rwlock);
- error_propagate(&backup_state.stat.error, local_err);
- qemu_co_rwlock_unlock(&backup_state.stat.rwlock);
- }
+ pvebackup_propagate_error(local_err);
+ }
backup_state.vmaw = NULL;
}
if (backup_state.pbs) {
- qemu_co_rwlock_rdlock(&backup_state.stat.rwlock);
- bool error_or_canceled = backup_state.stat.error || backup_state.stat.cancel;
- if (!error_or_canceled) {
+ if (!pvebackup_error_or_canceled()) {
Error *local_err = NULL;
proxmox_backup_co_finish(backup_state.pbs, &local_err);
if (local_err != NULL) {
- qemu_co_rwlock_upgrade(&backup_state.stat.rwlock);
- error_propagate(&backup_state.stat.error, local_err);
- }
+ pvebackup_propagate_error(local_err);
+ }
}
- qemu_co_rwlock_unlock(&backup_state.stat.rwlock);
proxmox_backup_disconnect(backup_state.pbs);
backup_state.pbs = NULL;
@@ -205,43 +256,14 @@ static void coroutine_fn pvebackup_co_cleanup(void)
g_list_free(backup_state.di_list);
backup_state.di_list = NULL;
- qemu_co_mutex_unlock(&backup_state.backup_mutex);
}
-typedef struct PVEBackupCompeteCallbackData {
- PVEBackupDevInfo *di;
- int result;
-} PVEBackupCompeteCallbackData;
-
-static void coroutine_fn pvebackup_co_complete_cb(void *opaque)
+// assumes the caller holds backup_mutex
+static void coroutine_fn pvebackup_complete_stream(void *opaque)
{
- assert(qemu_in_coroutine());
-
- PVEBackupCompeteCallbackData *cb_data = opaque;
-
- qemu_co_mutex_lock(&backup_state.backup_mutex);
-
- PVEBackupDevInfo *di = cb_data->di;
- int ret = cb_data->result;
-
- di->completed = true;
-
- qemu_co_rwlock_rdlock(&backup_state.stat.rwlock);
- bool error_or_canceled = backup_state.stat.error || backup_state.stat.cancel;
-
- if (ret < 0 && !backup_state.stat.error) {
- qemu_co_rwlock_upgrade(&backup_state.stat.rwlock);
- error_setg(&backup_state.stat.error, "job failed with err %d - %s",
- ret, strerror(-ret));
- }
- qemu_co_rwlock_unlock(&backup_state.stat.rwlock);
-
- di->bs = NULL;
+ PVEBackupDevInfo *di = opaque;
- if (di->target) {
- bdrv_unref(di->target);
- di->target = NULL;
- }
+ bool error_or_canceled = pvebackup_error_or_canceled();
if (backup_state.vmaw) {
vma_writer_close_stream(backup_state.vmaw, di->dev_id);
@@ -251,110 +273,101 @@ static void coroutine_fn pvebackup_co_complete_cb(void *opaque)
Error *local_err = NULL;
proxmox_backup_co_close_image(backup_state.pbs, di->dev_id, &local_err);
if (local_err != NULL) {
- qemu_co_rwlock_wrlock(&backup_state.stat.rwlock);
- error_propagate(&backup_state.stat.error, local_err);
- qemu_co_rwlock_unlock(&backup_state.stat.rwlock);
+ pvebackup_propagate_error(local_err);
}
}
+}
- // remove self from job queue
- backup_state.di_list = g_list_remove(backup_state.di_list, di);
- g_free(di);
+static void pvebackup_complete_cb(void *opaque, int ret)
+{
+ assert(!qemu_in_coroutine());
- int pending_jobs = g_list_length(backup_state.di_list);
+ PVEBackupDevInfo *di = opaque;
- qemu_co_mutex_unlock(&backup_state.backup_mutex);
+ qemu_mutex_lock(&backup_state.backup_mutex);
- if (pending_jobs > 0) {
- pvebackup_co_run_next_job();
- } else {
- pvebackup_co_cleanup();
+ di->completed = true;
+
+ if (ret < 0) {
+ Error *local_err = NULL;
+ error_setg(&local_err, "job failed with err %d - %s", ret, strerror(-ret));
+ pvebackup_propagate_error(local_err);
}
-}
-static void pvebackup_complete_cb(void *opaque, int ret)
-{
- // This can be called from the main loop, or from a coroutine
- PVEBackupCompeteCallbackData cb_data = {
- .di = opaque,
- .result = ret,
- };
+ di->bs = NULL;
- if (qemu_in_coroutine()) {
- pvebackup_co_complete_cb(&cb_data);
- } else {
- block_on_coroutine_fn(pvebackup_co_complete_cb, &cb_data);
- }
-}
+ assert(di->target == NULL);
-static void coroutine_fn pvebackup_co_cancel(void *opaque)
-{
- assert(qemu_in_coroutine());
+ block_on_coroutine_fn(pvebackup_complete_stream, di);
- qemu_co_rwlock_wrlock(&backup_state.stat.rwlock);
- backup_state.stat.cancel = true;
- qemu_co_rwlock_unlock(&backup_state.stat.rwlock);
+ // remove self from job queue
+ backup_state.di_list = g_list_remove(backup_state.di_list, di);
- qemu_co_mutex_lock(&backup_state.backup_mutex);
+ g_free(di);
- // Avoid race between block jobs and backup-cancel command:
- if (!(backup_state.vmaw || backup_state.pbs)) {
- qemu_co_mutex_unlock(&backup_state.backup_mutex);
- return;
- }
+ qemu_mutex_unlock(&backup_state.backup_mutex);
- qemu_co_rwlock_rdlock(&backup_state.stat.rwlock);
- if (!backup_state.stat.error) {
- qemu_co_rwlock_upgrade(&backup_state.stat.rwlock);
- error_setg(&backup_state.stat.error, "backup cancelled");
- }
- qemu_co_rwlock_unlock(&backup_state.stat.rwlock);
+ pvebackup_run_next_job();
+}
+
+static void pvebackup_cancel(void)
+{
+ assert(!qemu_in_coroutine());
+
+ Error *cancel_err = NULL;
+ error_setg(&cancel_err, "backup canceled");
+ pvebackup_propagate_error(cancel_err);
+
+ qemu_mutex_lock(&backup_state.backup_mutex);
if (backup_state.vmaw) {
/* make sure vma writer does not block anymore */
- vma_writer_set_error(backup_state.vmaw, "backup cancelled");
+ vma_writer_set_error(backup_state.vmaw, "backup canceled");
}
if (backup_state.pbs) {
- proxmox_backup_abort(backup_state.pbs, "backup cancelled");
+ proxmox_backup_abort(backup_state.pbs, "backup canceled");
}
- bool running_jobs = 0;
- GList *l = backup_state.di_list;
- while (l) {
- PVEBackupDevInfo *di = (PVEBackupDevInfo *)l->data;
- l = g_list_next(l);
- if (!di->completed && di->bs) {
- for (BlockJob *job = block_job_next(NULL); job; job = block_job_next(job)) {
- if (job->job.driver->job_type != JOB_TYPE_BACKUP) {
- continue;
- }
+ qemu_mutex_unlock(&backup_state.backup_mutex);
- BackupBlockJob *bjob = container_of(job, BackupBlockJob, common);
- if (bjob && bjob->source_bs == di->bs) {
- AioContext *aio_context = job->job.aio_context;
- aio_context_acquire(aio_context);
+ for(;;) {
- if (!di->completed) {
- running_jobs += 1;
- job_cancel(&job->job, false);
- }
- aio_context_release(aio_context);
- }
+ BlockJob *next_job = NULL;
+
+ qemu_mutex_lock(&backup_state.backup_mutex);
+
+ GList *l = backup_state.di_list;
+ while (l) {
+ PVEBackupDevInfo *di = (PVEBackupDevInfo *)l->data;
+ l = g_list_next(l);
+
+ BlockJob *job = lookup_active_block_job(di);
+ if (job != NULL) {
+ next_job = job;
+ break;
}
}
- }
- qemu_co_mutex_unlock(&backup_state.backup_mutex);
+ qemu_mutex_unlock(&backup_state.backup_mutex);
- if (running_jobs == 0) pvebackup_co_cleanup(); // else job will call completion handler
+ if (next_job) {
+ AioContext *aio_context = next_job->job.aio_context;
+ aio_context_acquire(aio_context);
+ job_cancel_sync(&next_job->job);
+ aio_context_release(aio_context);
+ } else {
+ break;
+ }
+ }
}
void qmp_backup_cancel(Error **errp)
{
- block_on_coroutine_fn(pvebackup_co_cancel, NULL);
+ pvebackup_cancel();
}
+// assumes the caller holds backup_mutex
static int coroutine_fn pvebackup_co_add_config(
const char *file,
const char *name,
@@ -406,46 +419,97 @@ static int coroutine_fn pvebackup_co_add_config(
bool job_should_pause(Job *job);
-static void coroutine_fn pvebackup_co_run_next_job(void)
+static void pvebackup_run_next_job(void)
{
- assert(qemu_in_coroutine());
+ assert(!qemu_in_coroutine());
- qemu_co_mutex_lock(&backup_state.backup_mutex);
+ qemu_mutex_lock(&backup_state.backup_mutex);
GList *l = backup_state.di_list;
while (l) {
PVEBackupDevInfo *di = (PVEBackupDevInfo *)l->data;
l = g_list_next(l);
- if (!di->completed && di->bs) {
- for (BlockJob *job = block_job_next(NULL); job; job = block_job_next(job)) {
- if (job->job.driver->job_type != JOB_TYPE_BACKUP) {
- continue;
- }
- BackupBlockJob *bjob = container_of(job, BackupBlockJob, common);
- if (bjob && bjob->source_bs == di->bs) {
- AioContext *aio_context = job->job.aio_context;
- qemu_co_mutex_unlock(&backup_state.backup_mutex);
- aio_context_acquire(aio_context);
-
- if (job_should_pause(&job->job)) {
- qemu_co_rwlock_rdlock(&backup_state.stat.rwlock);
- bool error_or_canceled = backup_state.stat.error || backup_state.stat.cancel;
- qemu_co_rwlock_unlock(&backup_state.stat.rwlock);
-
- if (error_or_canceled) {
- job_cancel(&job->job, false);
- } else {
- job_resume(&job->job);
- }
- }
- aio_context_release(aio_context);
- return;
+ BlockJob *job = lookup_active_block_job(di);
+
+ if (job) {
+ qemu_mutex_unlock(&backup_state.backup_mutex);
+
+ AioContext *aio_context = job->job.aio_context;
+ aio_context_acquire(aio_context);
+
+ if (job_should_pause(&job->job)) {
+ bool error_or_canceled = pvebackup_error_or_canceled();
+ if (error_or_canceled) {
+ job_cancel_sync(&job->job);
+ } else {
+ job_resume(&job->job);
}
}
+ aio_context_release(aio_context);
+ return;
+ }
+ }
+
+ block_on_coroutine_fn(pvebackup_co_cleanup, NULL); // no more jobs, run cleanup
+
+ qemu_mutex_unlock(&backup_state.backup_mutex);
+}
+
+static bool create_backup_jobs(void) {
+
+ assert(!qemu_in_coroutine());
+
+ Error *local_err = NULL;
+
+ /* create and start all jobs (paused state) */
+ GList *l = backup_state.di_list;
+ while (l) {
+ PVEBackupDevInfo *di = (PVEBackupDevInfo *)l->data;
+ l = g_list_next(l);
+
+ assert(di->target != NULL);
+
+ AioContext *aio_context = bdrv_get_aio_context(di->bs);
+ aio_context_acquire(aio_context);
+
+ BlockJob *job = backup_job_create(
+ NULL, di->bs, di->target, backup_state.speed, MIRROR_SYNC_MODE_FULL, NULL,
+ BITMAP_SYNC_MODE_NEVER, false, NULL, BLOCKDEV_ON_ERROR_REPORT, BLOCKDEV_ON_ERROR_REPORT,
+ JOB_DEFAULT, pvebackup_complete_cb, di, 1, NULL, &local_err);
+
+ aio_context_release(aio_context);
+
+ if (!job || local_err != NULL) {
+ Error *create_job_err = NULL;
+ error_setg(&create_job_err, "backup_job_create failed: %s",
+ local_err ? error_get_pretty(local_err) : "null");
+
+ pvebackup_propagate_error(create_job_err);
+ break;
+ }
+ job_start(&job->job);
+
+ bdrv_unref(di->target);
+ di->target = NULL;
+ }
+
+ bool errors = pvebackup_error_or_canceled();
+
+ if (errors) {
+ l = backup_state.di_list;
+ while (l) {
+ PVEBackupDevInfo *di = (PVEBackupDevInfo *)l->data;
+ l = g_list_next(l);
+
+ if (di->target) {
+ bdrv_unref(di->target);
+ di->target = NULL;
+ }
}
}
- qemu_co_mutex_unlock(&backup_state.backup_mutex);
+
+ return errors;
}
typedef struct QmpBackupTask {
@@ -476,7 +540,8 @@ typedef struct QmpBackupTask {
UuidInfo *result;
} QmpBackupTask;
-static void coroutine_fn pvebackup_co_start(void *opaque)
+// assumes the caller holds backup_mutex
+static void coroutine_fn pvebackup_co_prepare(void *opaque)
{
assert(qemu_in_coroutine());
@@ -495,16 +560,12 @@ static void coroutine_fn pvebackup_co_start(void *opaque)
GList *di_list = NULL;
GList *l;
UuidInfo *uuid_info;
- BlockJob *job;
const char *config_name = "qemu-server.conf";
const char *firewall_name = "qemu-server.fw";
- qemu_co_mutex_lock(&backup_state.backup_mutex);
-
if (backup_state.di_list) {
- qemu_co_mutex_unlock(&backup_state.backup_mutex);
- error_set(task->errp, ERROR_CLASS_GENERIC_ERROR,
+ error_set(task->errp, ERROR_CLASS_GENERIC_ERROR,
"previous backup not finished");
return;
}
@@ -627,7 +688,7 @@ static void coroutine_fn pvebackup_co_start(void *opaque)
if (dev_id < 0)
goto err;
- if (!(di->target = bdrv_backup_dump_create(dump_cb_block_size, di->size, pvebackup_co_dump_cb, di, task->errp))) {
+ if (!(di->target = bdrv_backup_dump_create(dump_cb_block_size, di->size, pvebackup_co_dump_pbs_cb, di, task->errp))) {
goto err;
}
@@ -648,7 +709,7 @@ static void coroutine_fn pvebackup_co_start(void *opaque)
PVEBackupDevInfo *di = (PVEBackupDevInfo *)l->data;
l = g_list_next(l);
- if (!(di->target = bdrv_backup_dump_create(VMA_CLUSTER_SIZE, di->size, pvebackup_co_dump_cb, di, task->errp))) {
+ if (!(di->target = bdrv_backup_dump_create(VMA_CLUSTER_SIZE, di->size, pvebackup_co_dump_vma_cb, di, task->errp))) {
goto err;
}
@@ -713,9 +774,7 @@ static void coroutine_fn pvebackup_co_start(void *opaque)
}
/* initialize global backup_state now */
- qemu_co_rwlock_wrlock(&backup_state.stat.rwlock);
-
- backup_state.stat.cancel = false;
+ qemu_mutex_lock(&backup_state.stat.lock);
if (backup_state.stat.error) {
error_free(backup_state.stat.error);
@@ -738,7 +797,7 @@ static void coroutine_fn pvebackup_co_start(void *opaque)
backup_state.stat.transferred = 0;
backup_state.stat.zero_bytes = 0;
- qemu_co_rwlock_unlock(&backup_state.stat.rwlock);
+ qemu_mutex_unlock(&backup_state.stat.lock);
backup_state.speed = (task->has_speed && task->speed > 0) ? task->speed : 0;
@@ -747,48 +806,6 @@ static void coroutine_fn pvebackup_co_start(void *opaque)
backup_state.di_list = di_list;
- /* start all jobs (paused state) */
- l = di_list;
- while (l) {
- PVEBackupDevInfo *di = (PVEBackupDevInfo *)l->data;
- l = g_list_next(l);
-
- // make sure target runs in same aoi_context as source
- AioContext *aio_context = bdrv_get_aio_context(di->bs);
- aio_context_acquire(aio_context);
- GSList *ignore = NULL;
- bdrv_set_aio_context_ignore(di->target, aio_context, &ignore);
- g_slist_free(ignore);
- aio_context_release(aio_context);
-
- job = backup_job_create(NULL, di->bs, di->target, backup_state.speed, MIRROR_SYNC_MODE_FULL, NULL,
- BITMAP_SYNC_MODE_NEVER, false, NULL, BLOCKDEV_ON_ERROR_REPORT, BLOCKDEV_ON_ERROR_REPORT,
- JOB_DEFAULT, pvebackup_complete_cb, di, 1, NULL, &local_err);
- if (!job || local_err != NULL) {
- qemu_co_rwlock_wrlock(&backup_state.stat.rwlock);
- error_setg(&backup_state.stat.error, "backup_job_create failed");
- qemu_co_rwlock_unlock(&backup_state.stat.rwlock);
- break;
- }
- job_start(&job->job);
- if (di->target) {
- bdrv_unref(di->target);
- di->target = NULL;
- }
- }
-
- qemu_co_mutex_unlock(&backup_state.backup_mutex);
-
- qemu_co_rwlock_rdlock(&backup_state.stat.rwlock);
- bool no_errors = !backup_state.stat.error;
- qemu_co_rwlock_unlock(&backup_state.stat.rwlock);
-
- if (no_errors) {
- pvebackup_co_run_next_job(); // run one job
- } else {
- pvebackup_co_cancel(NULL);
- }
-
uuid_info = g_malloc0(sizeof(*uuid_info));
uuid_info->UUID = uuid_str;
@@ -831,8 +848,6 @@ err:
rmdir(backup_dir);
}
- qemu_co_mutex_unlock(&backup_state.backup_mutex);
-
task->result = NULL;
return;
}
@@ -876,32 +891,31 @@ UuidInfo *qmp_backup(
.errp = errp,
};
- block_on_coroutine_fn(pvebackup_co_start, &task);
+ qemu_mutex_lock(&backup_state.backup_mutex);
- return task.result;
-}
+ block_on_coroutine_fn(pvebackup_co_prepare, &task);
+ if (*errp == NULL) {
+ create_backup_jobs();
+ qemu_mutex_unlock(&backup_state.backup_mutex);
+ pvebackup_run_next_job();
+ } else {
+ qemu_mutex_unlock(&backup_state.backup_mutex);
+ }
-typedef struct QmpQueryBackupTask {
- Error **errp;
- BackupStatus *result;
-} QmpQueryBackupTask;
+ return task.result;
+}
-static void coroutine_fn pvebackup_co_query(void *opaque)
+BackupStatus *qmp_query_backup(Error **errp)
{
- assert(qemu_in_coroutine());
-
- QmpQueryBackupTask *task = opaque;
-
BackupStatus *info = g_malloc0(sizeof(*info));
- qemu_co_rwlock_rdlock(&backup_state.stat.rwlock);
+ qemu_mutex_lock(&backup_state.stat.lock);
if (!backup_state.stat.start_time) {
/* not started, return {} */
- task->result = info;
- qemu_co_rwlock_unlock(&backup_state.stat.rwlock);
- return;
+ qemu_mutex_unlock(&backup_state.stat.lock);
+ return info;
}
info->has_status = true;
@@ -937,19 +951,7 @@ static void coroutine_fn pvebackup_co_query(void *opaque)
info->has_transferred = true;
info->transferred = backup_state.stat.transferred;
- task->result = info;
+ qemu_mutex_unlock(&backup_state.stat.lock);
- qemu_co_rwlock_unlock(&backup_state.stat.rwlock);
-}
-
-BackupStatus *qmp_query_backup(Error **errp)
-{
- QmpQueryBackupTask task = {
- .errp = errp,
- .result = NULL,
- };
-
- block_on_coroutine_fn(pvebackup_co_query, &task);
-
- return task.result;
+ return info;
}

View File

@@ -26,22 +26,19 @@ Suggested-by: Ma Haocong <mahaocong@didichuxing.com>
Signed-off-by: Ma Haocong <mahaocong@didichuxing.com>
Signed-off-by: John Snow <jsnow@redhat.com>
Signed-off-by: Fabian Grünbichler <f.gruenbichler@proxmox.com>
Signed-off-by: Thomas Lamprecht <t.lamprecht@proxmox.com>
[FE: rebased for 8.2.2]
Signed-off-by: Fiona Ebner <f.ebner@proxmox.com>
---
block/mirror.c | 99 ++++++++++++++++++++------
blockdev.c | 38 +++++++++-
include/block/block_int-global-state.h | 4 +-
qapi/block-core.json | 25 ++++++-
tests/unit/test-block-iothread.c | 4 +-
5 files changed, 142 insertions(+), 28 deletions(-)
block/mirror.c | 98 ++++++++++++++++++++++++++++++-------
blockdev.c | 39 +++++++++++++--
include/block/block_int.h | 4 +-
qapi/block-core.json | 29 +++++++++--
tests/test-block-iothread.c | 4 +-
5 files changed, 145 insertions(+), 29 deletions(-)
diff --git a/block/mirror.c b/block/mirror.c
index 1bdce3b657..0c5c72df2e 100644
index e8e8844afc..100e828639 100644
--- a/block/mirror.c
+++ b/block/mirror.c
@@ -51,7 +51,7 @@ typedef struct MirrorBlockJob {
@@ -49,7 +49,7 @@ typedef struct MirrorBlockJob {
BlockDriverState *to_replace;
/* Used to block operations on the drive-mirror-replace target */
Error *replace_blocker;
@@ -50,7 +47,7 @@ index 1bdce3b657..0c5c72df2e 100644
BlockMirrorBackingMode backing_mode;
/* Whether the target image requires explicit zero-initialization */
bool zero_target;
@@ -73,6 +73,8 @@ typedef struct MirrorBlockJob {
@@ -64,6 +64,8 @@ typedef struct MirrorBlockJob {
size_t buf_size;
int64_t bdev_length;
unsigned long *cow_bitmap;
@@ -59,17 +56,17 @@ index 1bdce3b657..0c5c72df2e 100644
BdrvDirtyBitmap *dirty_bitmap;
BdrvDirtyBitmapIter *dbi;
uint8_t *buf;
@@ -722,7 +724,8 @@ static int mirror_exit_common(Job *job)
@@ -676,7 +678,8 @@ static int mirror_exit_common(Job *job)
bdrv_child_refresh_perms(mirror_top_bs, mirror_top_bs->backing,
&error_abort);
if (!abort && s->backing_mode == MIRROR_SOURCE_BACKING_CHAIN) {
- BlockDriverState *backing = s->is_none_mode ? src : s->base;
+ BlockDriverState *backing;
+ backing = s->sync_mode == MIRROR_SYNC_MODE_NONE ? src : s->base;
BlockDriverState *unfiltered_target = bdrv_skip_filters(target_bs);
if (bdrv_cow_bs(unfiltered_target) != backing) {
@@ -819,6 +822,16 @@ static void mirror_abort(Job *job)
if (backing_bs(target_bs) != backing) {
bdrv_set_backing_hd(target_bs, backing, &local_err);
if (local_err) {
@@ -771,6 +774,16 @@ static void mirror_abort(Job *job)
assert(ret == 0);
}
@@ -86,7 +83,7 @@ index 1bdce3b657..0c5c72df2e 100644
static void coroutine_fn mirror_throttle(MirrorBlockJob *s)
{
int64_t now = qemu_clock_get_ns(QEMU_CLOCK_REALTIME);
@@ -1015,7 +1028,8 @@ static int coroutine_fn mirror_run(Job *job, Error **errp)
@@ -952,7 +965,8 @@ static int coroutine_fn mirror_run(Job *job, Error **errp)
mirror_free_init(s);
s->last_pause_ns = qemu_clock_get_ns(QEMU_CLOCK_REALTIME);
@@ -96,23 +93,23 @@ index 1bdce3b657..0c5c72df2e 100644
ret = mirror_dirty_init(s);
if (ret < 0 || job_is_cancelled(&s->common.job)) {
goto immediate_exit;
@@ -1304,6 +1318,7 @@ static const BlockJobDriver mirror_job_driver = {
@@ -1184,6 +1198,7 @@ static const BlockJobDriver mirror_job_driver = {
.run = mirror_run,
.prepare = mirror_prepare,
.abort = mirror_abort,
+ .clean = mirror_clean,
.pause = mirror_pause,
.complete = mirror_complete,
.cancel = mirror_cancel,
@@ -1322,6 +1337,7 @@ static const BlockJobDriver commit_active_job_driver = {
},
@@ -1199,6 +1214,7 @@ static const BlockJobDriver commit_active_job_driver = {
.run = mirror_run,
.prepare = mirror_prepare,
.abort = mirror_abort,
+ .clean = mirror_clean,
.pause = mirror_pause,
.complete = mirror_complete,
.cancel = commit_active_cancel,
@@ -1714,7 +1730,10 @@ static BlockJob *mirror_start_job(
},
@@ -1547,7 +1563,10 @@ static BlockJob *mirror_start_job(
BlockCompletionFunc *cb,
void *opaque,
const BlockJobDriver *driver,
@@ -124,9 +121,9 @@ index 1bdce3b657..0c5c72df2e 100644
bool auto_complete, const char *filter_node_name,
bool is_mirror, MirrorCopyMode copy_mode,
Error **errp)
@@ -1728,10 +1747,39 @@ static BlockJob *mirror_start_job(
GLOBAL_STATE_CODE();
@@ -1560,10 +1579,39 @@ static BlockJob *mirror_start_job(
Error *local_err = NULL;
int ret;
- if (granularity == 0) {
- granularity = bdrv_get_default_bitmap_granularity(target);
@@ -166,7 +163,7 @@ index 1bdce3b657..0c5c72df2e 100644
assert(is_power_of_2(granularity));
if (buf_size < 0) {
@@ -1871,7 +1919,9 @@ static BlockJob *mirror_start_job(
@@ -1667,7 +1715,9 @@ static BlockJob *mirror_start_job(
s->replaces = g_strdup(replaces);
s->on_source_error = on_source_error;
s->on_target_error = on_target_error;
@@ -176,10 +173,10 @@ index 1bdce3b657..0c5c72df2e 100644
+ s->bitmap_mode = bitmap_mode;
s->backing_mode = backing_mode;
s->zero_target = zero_target;
qatomic_set(&s->copy_mode, copy_mode);
@@ -1897,6 +1947,18 @@ static BlockJob *mirror_start_job(
*/
bdrv_disable_dirty_bitmap(s->dirty_bitmap);
s->copy_mode = copy_mode;
@@ -1687,6 +1737,18 @@ static BlockJob *mirror_start_job(
bdrv_disable_dirty_bitmap(s->dirty_bitmap);
}
+ if (s->sync_bitmap) {
+ bdrv_dirty_bitmap_set_busy(s->sync_bitmap, true);
@@ -193,10 +190,10 @@ index 1bdce3b657..0c5c72df2e 100644
+ }
+ }
+
bdrv_graph_wrlock();
ret = block_job_add_bdrv(&s->common, "source", bs, 0,
BLK_PERM_WRITE_UNCHANGED | BLK_PERM_WRITE |
@@ -1979,6 +2041,9 @@ fail:
BLK_PERM_CONSISTENT_READ,
@@ -1740,6 +1802,9 @@ fail:
if (s->dirty_bitmap) {
bdrv_release_dirty_bitmap(s->dirty_bitmap);
}
@@ -206,7 +203,7 @@ index 1bdce3b657..0c5c72df2e 100644
job_early_fail(&s->common.job);
}
@@ -2001,35 +2066,28 @@ void mirror_start(const char *job_id, BlockDriverState *bs,
@@ -1757,29 +1822,23 @@ void mirror_start(const char *job_id, BlockDriverState *bs,
BlockDriverState *target, const char *replaces,
int creation_flags, int64_t speed,
uint32_t granularity, int64_t buf_size,
@@ -223,20 +220,14 @@ index 1bdce3b657..0c5c72df2e 100644
- bool is_none_mode;
BlockDriverState *base;
GLOBAL_STATE_CODE();
- if ((mode == MIRROR_SYNC_MODE_INCREMENTAL) ||
- (mode == MIRROR_SYNC_MODE_BITMAP)) {
- error_setg(errp, "Sync mode '%s' not supported",
- MirrorSyncMode_str(mode));
- return;
- }
-
bdrv_graph_rdlock_main_loop();
- is_none_mode = mode == MIRROR_SYNC_MODE_NONE;
base = mode == MIRROR_SYNC_MODE_TOP ? bdrv_backing_chain_next(bs) : NULL;
bdrv_graph_rdunlock_main_loop();
base = mode == MIRROR_SYNC_MODE_TOP ? backing_bs(bs) : NULL;
mirror_start_job(job_id, bs, creation_flags, target, replaces,
speed, granularity, buf_size, backing_mode, zero_target,
on_source_error, on_target_error, unmap, NULL, NULL,
@@ -247,7 +238,7 @@ index 1bdce3b657..0c5c72df2e 100644
}
BlockJob *commit_active_start(const char *job_id, BlockDriverState *bs,
@@ -2056,7 +2114,8 @@ BlockJob *commit_active_start(const char *job_id, BlockDriverState *bs,
@@ -1805,7 +1864,8 @@ BlockJob *commit_active_start(const char *job_id, BlockDriverState *bs,
job_id, bs, creation_flags, base, NULL, speed, 0, 0,
MIRROR_LEAVE_BACKING_CHAIN, false,
on_error, on_error, true, cb, opaque,
@@ -255,35 +246,36 @@ index 1bdce3b657..0c5c72df2e 100644
+ &commit_active_job_driver, MIRROR_SYNC_MODE_FULL,
+ NULL, 0, base, auto_complete,
filter_node_name, false, MIRROR_COPY_MODE_BACKGROUND,
errp);
if (!job) {
&local_err);
if (local_err) {
diff --git a/blockdev.c b/blockdev.c
index 057601dcf0..8682814a7a 100644
index 681da7c8b6..02d58e7645 100644
--- a/blockdev.c
+++ b/blockdev.c
@@ -2776,6 +2776,9 @@ static void blockdev_mirror_common(const char *job_id, BlockDriverState *bs,
@@ -2876,6 +2876,10 @@ static void blockdev_mirror_common(const char *job_id, BlockDriverState *bs,
BlockDriverState *target,
const char *replaces,
bool has_replaces, const char *replaces,
enum MirrorSyncMode sync,
+ bool has_bitmap,
+ const char *bitmap_name,
+ bool has_bitmap_mode,
+ BitmapSyncMode bitmap_mode,
BlockMirrorBackingMode backing_mode,
bool zero_target,
bool has_speed, int64_t speed,
@@ -2794,6 +2797,7 @@ static void blockdev_mirror_common(const char *job_id, BlockDriverState *bs,
@@ -2894,6 +2898,7 @@ static void blockdev_mirror_common(const char *job_id, BlockDriverState *bs,
Error **errp)
{
BlockDriverState *unfiltered_bs;
int job_flags = JOB_DEFAULT;
+ BdrvDirtyBitmap *bitmap = NULL;
GLOBAL_STATE_CODE();
GRAPH_RDLOCK_GUARD_MAINLOOP();
@@ -2848,6 +2852,29 @@ static void blockdev_mirror_common(const char *job_id, BlockDriverState *bs,
if (!has_speed) {
speed = 0;
@@ -2948,6 +2953,29 @@ static void blockdev_mirror_common(const char *job_id, BlockDriverState *bs,
sync = MIRROR_SYNC_MODE_FULL;
}
+ if (bitmap_name) {
+ if (has_bitmap) {
+ if (granularity) {
+ error_setg(errp, "Granularity and bitmap cannot both be set");
+ return;
@@ -306,53 +298,53 @@ index 057601dcf0..8682814a7a 100644
+ }
+ }
+
if (!replaces) {
/* We want to mirror from @bs, but keep implicit filters on top */
unfiltered_bs = bdrv_skip_implicit_filters(bs);
@@ -2889,8 +2916,8 @@ static void blockdev_mirror_common(const char *job_id, BlockDriverState *bs,
if (has_replaces) {
BlockDriverState *to_replace_bs;
AioContext *replace_aio_context;
@@ -2985,8 +3013,8 @@ static void blockdev_mirror_common(const char *job_id, BlockDriverState *bs,
* and will allow to check whether the node still exist at mirror completion
*/
mirror_start(job_id, bs, target,
- replaces, job_flags,
- has_replaces ? replaces : NULL, job_flags,
- speed, granularity, buf_size, sync, backing_mode, zero_target,
+ replaces, job_flags, speed, granularity, buf_size, sync,
+ bitmap, bitmap_mode, backing_mode, zero_target,
+ has_replaces ? replaces : NULL, job_flags, speed, granularity,
+ buf_size, sync, bitmap, bitmap_mode, backing_mode, zero_target,
on_source_error, on_target_error, unmap, filter_node_name,
copy_mode, errp);
}
@@ -3034,6 +3061,8 @@ void qmp_drive_mirror(DriveMirror *arg, Error **errp)
@@ -3127,6 +3155,8 @@ void qmp_drive_mirror(DriveMirror *arg, Error **errp)
blockdev_mirror_common(arg->job_id, bs, target_bs,
arg->replaces, arg->sync,
+ arg->bitmap,
blockdev_mirror_common(arg->has_job_id ? arg->job_id : NULL, bs, target_bs,
arg->has_replaces, arg->replaces, arg->sync,
+ arg->has_bitmap, arg->bitmap,
+ arg->has_bitmap_mode, arg->bitmap_mode,
backing_mode, zero_target,
arg->has_speed, arg->speed,
arg->has_granularity, arg->granularity,
@@ -3053,6 +3082,8 @@ void qmp_blockdev_mirror(const char *job_id,
@@ -3148,6 +3178,8 @@ void qmp_blockdev_mirror(bool has_job_id, const char *job_id,
const char *device, const char *target,
const char *replaces,
bool has_replaces, const char *replaces,
MirrorSyncMode sync,
+ const char *bitmap,
+ bool has_bitmap, const char *bitmap,
+ bool has_bitmap_mode, BitmapSyncMode bitmap_mode,
bool has_speed, int64_t speed,
bool has_granularity, uint32_t granularity,
bool has_buf_size, int64_t buf_size,
@@ -3093,7 +3124,8 @@ void qmp_blockdev_mirror(const char *job_id,
@@ -3197,7 +3229,8 @@ void qmp_blockdev_mirror(bool has_job_id, const char *job_id,
}
blockdev_mirror_common(job_id, bs, target_bs,
- replaces, sync, backing_mode,
+ replaces, sync,
blockdev_mirror_common(has_job_id ? job_id : NULL, bs, target_bs,
- has_replaces, replaces, sync, backing_mode,
+ has_replaces, replaces, sync, has_bitmap,
+ bitmap, has_bitmap_mode, bitmap_mode, backing_mode,
zero_target, has_speed, speed,
has_granularity, granularity,
has_buf_size, buf_size,
diff --git a/include/block/block_int-global-state.h b/include/block/block_int-global-state.h
index d2201e27f4..cc1387ae02 100644
--- a/include/block/block_int-global-state.h
+++ b/include/block/block_int-global-state.h
@@ -158,7 +158,9 @@ void mirror_start(const char *job_id, BlockDriverState *bs,
diff --git a/include/block/block_int.h b/include/block/block_int.h
index 8dda6f769d..279bd4ab61 100644
--- a/include/block/block_int.h
+++ b/include/block/block_int.h
@@ -1245,7 +1245,9 @@ void mirror_start(const char *job_id, BlockDriverState *bs,
BlockDriverState *target, const char *replaces,
int creation_flags, int64_t speed,
uint32_t granularity, int64_t buf_size,
@@ -364,26 +356,31 @@ index d2201e27f4..cc1387ae02 100644
BlockdevOnError on_source_error,
BlockdevOnError on_target_error,
diff --git a/qapi/block-core.json b/qapi/block-core.json
index 746d1694c2..45ab548dfe 100644
index 69db270b1a..9db8e26517 100644
--- a/qapi/block-core.json
+++ b/qapi/block-core.json
@@ -2174,6 +2174,15 @@
# destination (all the disk, only the sectors allocated in the
# topmost image, or only new I/O).
@@ -2064,10 +2064,19 @@
# (all the disk, only the sectors allocated in the topmost image, or
# only new I/O).
#
+# @bitmap: The name of a bitmap to use for sync=bitmap mode. This
+# argument must be present for bitmap mode and absent otherwise.
+# The bitmap's granularity is used instead of @granularity (Since
+# 4.1).
+# @bitmap: The name of a bitmap to use for sync=bitmap mode. This argument must
+# be present for bitmap mode and absent otherwise. The bitmap's
+# granularity is used instead of @granularity (since 4.1).
+#
+# @bitmap-mode: Specifies the type of data the bitmap should contain
+# after the operation concludes. Must be present if sync is
+# "bitmap". Must NOT be present otherwise. (Since 4.1)
+# @bitmap-mode: Specifies the type of data the bitmap should contain after
+# the operation concludes. Must be present if sync is "bitmap".
+# Must NOT be present otherwise. (Since 4.1)
+#
# @granularity: granularity of the dirty bitmap, default is 64K if the
# image format doesn't have clusters, 4K if the clusters are
# smaller than that, else the cluster size. Must be a power of 2
@@ -2216,7 +2225,9 @@
# @granularity: granularity of the dirty bitmap, default is 64K
# if the image format doesn't have clusters, 4K if the clusters
# are smaller than that, else the cluster size. Must be a
-# power of 2 between 512 and 64M (since 1.4).
+# power of 2 between 512 and 64M. Must not be specified if
+# @bitmap is present (since 1.4).
#
# @buf-size: maximum amount of data in flight from source to
# target (since 1.4).
@@ -2105,7 +2114,9 @@
{ 'struct': 'DriveMirror',
'data': { '*job-id': 'str', 'device': 'str', 'target': 'str',
'*format': 'str', '*node-name': 'str', '*replaces': 'str',
@@ -394,23 +391,28 @@ index 746d1694c2..45ab548dfe 100644
'*speed': 'int', '*granularity': 'uint32',
'*buf-size': 'int', '*on-source-error': 'BlockdevOnError',
'*on-target-error': 'BlockdevOnError',
@@ -2496,6 +2507,15 @@
# destination (all the disk, only the sectors allocated in the
# topmost image, or only new I/O).
@@ -2372,10 +2383,19 @@
# (all the disk, only the sectors allocated in the topmost image, or
# only new I/O).
#
+# @bitmap: The name of a bitmap to use for sync=bitmap mode. This
+# argument must be present for bitmap mode and absent otherwise.
+# The bitmap's granularity is used instead of @granularity (since
+# 4.1).
+# @bitmap: The name of a bitmap to use for sync=bitmap mode. This argument must
+# be present for bitmap mode and absent otherwise. The bitmap's
+# granularity is used instead of @granularity (since 4.1).
+#
+# @bitmap-mode: Specifies the type of data the bitmap should contain
+# after the operation concludes. Must be present if sync is
+# "bitmap". Must NOT be present otherwise. (Since 4.1)
+# @bitmap-mode: Specifies the type of data the bitmap should contain after
+# the operation concludes. Must be present if sync is "bitmap".
+# Must NOT be present otherwise. (Since 4.1)
+#
# @granularity: granularity of the dirty bitmap, default is 64K if the
# image format doesn't have clusters, 4K if the clusters are
# smaller than that, else the cluster size. Must be a power of 2
@@ -2544,7 +2564,8 @@
# @granularity: granularity of the dirty bitmap, default is 64K
# if the image format doesn't have clusters, 4K if the clusters
# are smaller than that, else the cluster size. Must be a
-# power of 2 between 512 and 64M
+# power of 2 between 512 and 64M . Must not be specified if
+# @bitmap is present.
#
# @buf-size: maximum amount of data in flight from source to
# target
@@ -2424,7 +2444,8 @@
{ 'command': 'blockdev-mirror',
'data': { '*job-id': 'str', 'device': 'str', 'target': 'str',
'*replaces': 'str',
@@ -420,11 +422,11 @@ index 746d1694c2..45ab548dfe 100644
'*speed': 'int', '*granularity': 'uint32',
'*buf-size': 'int', '*on-source-error': 'BlockdevOnError',
'*on-target-error': 'BlockdevOnError',
diff --git a/tests/unit/test-block-iothread.c b/tests/unit/test-block-iothread.c
index 3766d5de6b..afa44cbd34 100644
--- a/tests/unit/test-block-iothread.c
+++ b/tests/unit/test-block-iothread.c
@@ -755,8 +755,8 @@ static void test_propagate_mirror(void)
diff --git a/tests/test-block-iothread.c b/tests/test-block-iothread.c
index 3f866a35c6..500ede71c8 100644
--- a/tests/test-block-iothread.c
+++ b/tests/test-block-iothread.c
@@ -623,8 +623,8 @@ static void test_propagate_mirror(void)
/* Start a mirror job */
mirror_start("job0", src, target, NULL, JOB_DEFAULT, 0, 0, 0,
@@ -434,4 +436,4 @@ index 3766d5de6b..afa44cbd34 100644
+ false, BLOCKDEV_ON_ERROR_REPORT, BLOCKDEV_ON_ERROR_REPORT,
false, "filter_node", MIRROR_COPY_MODE_BACKGROUND,
&error_abort);
job = job_get("job0");

View File

@@ -18,16 +18,15 @@ incremental backup modes; we can use this bitmap to later refresh a
successfully created mirror.
Signed-off-by: Fabian Grünbichler <f.gruenbichler@proxmox.com>
Signed-off-by: Thomas Lamprecht <t.lamprecht@proxmox.com>
---
block/mirror.c | 24 ++++++++++++++++++------
1 file changed, 18 insertions(+), 6 deletions(-)
diff --git a/block/mirror.c b/block/mirror.c
index 0c5c72df2e..37fee3fa25 100644
index 100e828639..7d3c3252f3 100644
--- a/block/mirror.c
+++ b/block/mirror.c
@@ -693,8 +693,6 @@ static int mirror_exit_common(Job *job)
@@ -653,8 +653,6 @@ static int mirror_exit_common(Job *job)
bdrv_unfreeze_backing_chain(mirror_top_bs, target_bs);
}
@@ -36,9 +35,9 @@ index 0c5c72df2e..37fee3fa25 100644
/* Make sure that the source BDS doesn't go away during bdrv_replace_node,
* before we can call bdrv_drained_end */
bdrv_ref(src);
@@ -800,6 +798,18 @@ static int mirror_exit_common(Job *job)
bdrv_drained_end(target_bs);
bdrv_unref(target_bs);
@@ -752,6 +750,18 @@ static int mirror_exit_common(Job *job)
blk_set_perm(bjob->blk, 0, BLK_PERM_ALL, &error_abort);
blk_insert_bs(bjob->blk, mirror_top_bs, &error_abort);
+ if (s->sync_bitmap) {
+ if (s->bitmap_mode == BITMAP_SYNC_MODE_ALWAYS ||
@@ -55,7 +54,7 @@ index 0c5c72df2e..37fee3fa25 100644
bs_opaque->job = NULL;
bdrv_drained_end(src);
@@ -1757,10 +1767,6 @@ static BlockJob *mirror_start_job(
@@ -1589,10 +1599,6 @@ static BlockJob *mirror_start_job(
" sync mode",
MirrorSyncMode_str(sync_mode));
return NULL;
@@ -66,7 +65,7 @@ index 0c5c72df2e..37fee3fa25 100644
}
} else if (bitmap) {
error_setg(errp,
@@ -1777,6 +1783,12 @@ static BlockJob *mirror_start_job(
@@ -1609,6 +1615,12 @@ static BlockJob *mirror_start_job(
return NULL;
}
granularity = bdrv_dirty_bitmap_granularity(bitmap);

View File

@@ -1,62 +0,0 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Stefan Reiter <s.reiter@proxmox.com>
Date: Tue, 12 Jan 2021 14:12:20 +0100
Subject: [PATCH] PVE: redirect stderr to journal when daemonized
QEMU uses the logging for error messages usually, so LOG_ERR is most
fitting.
Signed-off-by: Stefan Reiter <s.reiter@proxmox.com>
Signed-off-by: Thomas Lamprecht <t.lamprecht@proxmox.com>
---
meson.build | 3 ++-
os-posix.c | 7 +++++--
2 files changed, 7 insertions(+), 3 deletions(-)
diff --git a/meson.build b/meson.build
index 3bc039f60f..067e8956a7 100644
--- a/meson.build
+++ b/meson.build
@@ -1923,6 +1923,7 @@ endif
has_gettid = cc.has_function('gettid')
libuuid = cc.find_library('uuid', required: true)
+libsystemd = cc.find_library('systemd', required: true)
libproxmox_backup_qemu = cc.find_library('proxmox_backup_qemu', required: true)
# libselinux
@@ -3530,7 +3531,7 @@ if have_block
if host_os == 'windows'
system_ss.add(files('os-win32.c'))
else
- blockdev_ss.add(files('os-posix.c'))
+ blockdev_ss.add(files('os-posix.c'), libsystemd)
endif
endif
diff --git a/os-posix.c b/os-posix.c
index a4284e2c07..197a2120fd 100644
--- a/os-posix.c
+++ b/os-posix.c
@@ -29,6 +29,8 @@
#include <pwd.h>
#include <grp.h>
#include <libgen.h>
+#include <systemd/sd-journal.h>
+#include <syslog.h>
#include "qemu/error-report.h"
#include "qemu/log.h"
@@ -302,9 +304,10 @@ void os_setup_post(void)
dup2(fd, 0);
dup2(fd, 1);
- /* In case -D is given do not redirect stderr to /dev/null */
+ /* In case -D is given do not redirect stderr to journal */
if (!qemu_log_enabled()) {
- dup2(fd, 2);
+ int journal_fd = sd_journal_stream_fd("QEMU", LOG_ERR, 0);
+ dup2(journal_fd, 2);
}
close(fd);

View File

@@ -10,16 +10,15 @@ as one without the other does not make much sense with the current set
of modes.
Signed-off-by: Fabian Grünbichler <f.gruenbichler@proxmox.com>
Signed-off-by: Thomas Lamprecht <t.lamprecht@proxmox.com>
---
blockdev.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/blockdev.c b/blockdev.c
index 8682814a7a..5b75a085ee 100644
index 02d58e7645..0d480f02c7 100644
--- a/blockdev.c
+++ b/blockdev.c
@@ -2873,6 +2873,9 @@ static void blockdev_mirror_common(const char *job_id, BlockDriverState *bs,
@@ -2974,6 +2974,9 @@ static void blockdev_mirror_common(const char *job_id, BlockDriverState *bs,
if (bdrv_dirty_bitmap_check(bitmap, BDRV_BITMAP_ALLOW_RO, errp)) {
return;
}
@@ -28,4 +27,4 @@ index 8682814a7a..5b75a085ee 100644
+ return;
}
if (!replaces) {
if (has_replaces) {

View File

@@ -10,16 +10,15 @@ since sync_bitmap is busy at the point of merging, and we checked access
beforehand.
Signed-off-by: Fabian Grünbichler <f.gruenbichler@proxmox.com>
Signed-off-by: Thomas Lamprecht <t.lamprecht@proxmox.com>
---
block/mirror.c | 11 ++++-------
1 file changed, 4 insertions(+), 7 deletions(-)
block/mirror.c | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)
diff --git a/block/mirror.c b/block/mirror.c
index 37fee3fa25..6b3cce1007 100644
index 7d3c3252f3..fb12ccb932 100644
--- a/block/mirror.c
+++ b/block/mirror.c
@@ -804,8 +804,8 @@ static int mirror_exit_common(Job *job)
@@ -756,8 +756,8 @@ static int mirror_exit_common(Job *job)
job->ret == 0 && ret == 0)) {
/* Success; synchronize copy back to sync. */
bdrv_clear_dirty_bitmap(s->sync_bitmap, NULL);
@@ -30,17 +29,14 @@ index 37fee3fa25..6b3cce1007 100644
}
}
bdrv_release_dirty_bitmap(s->dirty_bitmap);
@@ -1964,11 +1964,8 @@ static BlockJob *mirror_start_job(
@@ -1754,8 +1754,8 @@ static BlockJob *mirror_start_job(
}
if (s->sync_mode == MIRROR_SYNC_MODE_BITMAP) {
- bdrv_merge_dirty_bitmap(s->dirty_bitmap, s->sync_bitmap,
- NULL, &local_err);
- if (local_err) {
- goto fail;
- }
+ bdrv_dirty_bitmap_merge_internal(s->dirty_bitmap, s->sync_bitmap,
+ NULL, true);
}
bdrv_graph_wrlock();
if (local_err) {
goto fail;
}

View File

@@ -20,11 +20,11 @@ intentionally keeping copyright and ownership of original test case to
honor provenance.
Signed-off-by: Fabian Grünbichler <f.gruenbichler@proxmox.com>
Signed-off-by: Thomas Lamprecht <t.lamprecht@proxmox.com>
---
tests/qemu-iotests/384 | 547 +++++++
tests/qemu-iotests/384.out | 2846 ++++++++++++++++++++++++++++++++++++
2 files changed, 3393 insertions(+)
tests/qemu-iotests/group | 1 +
3 files changed, 3394 insertions(+)
create mode 100755 tests/qemu-iotests/384
create mode 100644 tests/qemu-iotests/384.out
@@ -3433,3 +3433,15 @@ index 0000000000..9b7408b6d6
+{"execute": "blockdev-mirror", "arguments": {"bitmap": "bitmap0", "device": "drive0", "filter-node-name": "mirror-top", "job-id": "api_job", "sync": "none", "target": "mirror_target"}}
+{"error": {"class": "GenericError", "desc": "bitmap-mode must be specified if a bitmap is provided"}}
+
diff --git a/tests/qemu-iotests/group b/tests/qemu-iotests/group
index 025ed5238d..bee527c012 100644
--- a/tests/qemu-iotests/group
+++ b/tests/qemu-iotests/group
@@ -270,6 +270,7 @@
253 rw quick
254 rw backing quick
255 rw quick
+384 rw
256 rw auto quick
257 rw
258 rw quick

View File

@@ -1,69 +0,0 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Fabian Ebner <f.ebner@proxmox.com>
Date: Tue, 17 Nov 2020 10:51:05 +0100
Subject: [PATCH] PVE: fall back to open-iscsi initiatorname
When no explicit option is given, try reading the initiator name from
/etc/iscsi/initiatorname.iscsi and only use the generic fallback, i.e.
iqn.2008-11.org.linux-kvmXXX, as a third alternative.
This avoids the need to add an explicit option for vma and to explicitly set it
for each call to qemu that deals with iSCSI disks, while still allowing to set
the option if a different name is needed.
According to RFC 3720, an initiator name is at most 223 bytes long, so the
4 KiB buffer is big enough, even if many whitespaces are used.
Signed-off-by: Fabian Ebner <f.ebner@proxmox.com>
Signed-off-by: Thomas Lamprecht <t.lamprecht@proxmox.com>
---
block/iscsi.c | 30 ++++++++++++++++++++++++++++++
1 file changed, 30 insertions(+)
diff --git a/block/iscsi.c b/block/iscsi.c
index 2ff14b7472..46f275fbf7 100644
--- a/block/iscsi.c
+++ b/block/iscsi.c
@@ -1392,12 +1392,42 @@ static char *get_initiator_name(QemuOpts *opts)
const char *name;
char *iscsi_name;
UuidInfo *uuid_info;
+ FILE *name_fh;
name = qemu_opt_get(opts, "initiator-name");
if (name) {
return g_strdup(name);
}
+ name_fh = fopen("/etc/iscsi/initiatorname.iscsi", "r");
+ if (name_fh) {
+ const char *key = "InitiatorName";
+ char buffer[4096];
+ char *line;
+
+ while ((line = fgets(buffer, sizeof(buffer), name_fh))) {
+ line = g_strstrip(line);
+ if (!strncmp(line, key, strlen(key))) {
+ line = strchr(line, '=');
+ if (!line || strlen(line) == 1) {
+ continue;
+ }
+ line++;
+ g_strstrip(line);
+ if (!strlen(line)) {
+ continue;
+ }
+ name = line;
+ break;
+ }
+ }
+ fclose(name_fh);
+
+ if (name) {
+ return g_strdup(name);
+ }
+ }
+
uuid_info = qmp_query_uuid(NULL);
if (strcmp(uuid_info->UUID, UUID_NONE) == 0) {
name = qemu_get_vm_name();

View File

@@ -11,9 +11,6 @@ mode was never available for drive-mirror, it makes the interface more
uniform w.r.t. backup block jobs.
Signed-off-by: Fabian Grünbichler <f.gruenbichler@proxmox.com>
Signed-off-by: Thomas Lamprecht <t.lamprecht@proxmox.com>
[FE: rebase for 8.2.2]
Signed-off-by: Fiona Ebner <f.ebner@proxmox.com>
---
block/mirror.c | 28 +++------------
blockdev.c | 29 +++++++++++++++
@@ -21,12 +18,12 @@ Signed-off-by: Fiona Ebner <f.ebner@proxmox.com>
3 files changed, 70 insertions(+), 59 deletions(-)
diff --git a/block/mirror.c b/block/mirror.c
index 6b3cce1007..2f1223852b 100644
index fb12ccb932..dfce442e97 100644
--- a/block/mirror.c
+++ b/block/mirror.c
@@ -1757,31 +1757,13 @@ static BlockJob *mirror_start_job(
GLOBAL_STATE_CODE();
@@ -1589,31 +1589,13 @@ static BlockJob *mirror_start_job(
Error *local_err = NULL;
int ret;
- if (sync_mode == MIRROR_SYNC_MODE_INCREMENTAL) {
- error_setg(errp, "Sync mode '%s' not supported",
@@ -62,17 +59,17 @@ index 6b3cce1007..2f1223852b 100644
if (bitmap_mode != BITMAP_SYNC_MODE_NEVER) {
diff --git a/blockdev.c b/blockdev.c
index 5b75a085ee..d27d8c38ec 100644
index 0d480f02c7..be87d65c02 100644
--- a/blockdev.c
+++ b/blockdev.c
@@ -2852,7 +2852,36 @@ static void blockdev_mirror_common(const char *job_id, BlockDriverState *bs,
@@ -2953,7 +2953,36 @@ static void blockdev_mirror_common(const char *job_id, BlockDriverState *bs,
sync = MIRROR_SYNC_MODE_FULL;
}
+ if ((sync == MIRROR_SYNC_MODE_BITMAP) ||
+ (sync == MIRROR_SYNC_MODE_INCREMENTAL)) {
+ /* done before desugaring 'incremental' to print the right message */
+ if (!bitmap_name) {
+ if (!has_bitmap) {
+ error_setg(errp, "Must provide a valid bitmap name for "
+ "'%s' sync mode", MirrorSyncMode_str(sync));
+ return;
@@ -93,7 +90,7 @@ index 5b75a085ee..d27d8c38ec 100644
+ bitmap_mode = BITMAP_SYNC_MODE_ON_SUCCESS;
+ }
+
if (bitmap_name) {
if (has_bitmap) {
+ if (sync != MIRROR_SYNC_MODE_BITMAP) {
+ error_setg(errp, "Sync mode '%s' not supported with bitmap.",
+ MirrorSyncMode_str(sync));

View File

@@ -0,0 +1,444 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Stefan Reiter <s.reiter@proxmox.com>
Date: Mon, 29 Jun 2020 11:06:03 +0200
Subject: [PATCH] PVE-Backup: Add dirty-bitmap tracking for incremental backups
Uses QEMU's existing MIRROR_SYNC_MODE_BITMAP and a dirty-bitmap on top
of all backed-up drives. This will only execute the data-write callback
for any changed chunks, the PBS rust code will reuse chunks from the
previous index for everything it doesn't receive if reuse_index is true.
On error or cancellation, remove all dirty bitmaps to ensure
consistency.
Add PBS/incremental specific information to query backup info QMP and
HMP commands.
Only supported for PBS backups.
Signed-off-by: Stefan Reiter <s.reiter@proxmox.com>
Signed-off-by: Dietmar Maurer <dietmar@proxmox.com>
Signed-off-by: Thomas Lamprecht <t.lamprecht@proxmox.com>
---
block/monitor/block-hmp-cmds.c | 1 +
monitor/hmp-cmds.c | 45 ++++++++++++----
proxmox-backup-client.c | 3 +-
proxmox-backup-client.h | 1 +
pve-backup.c | 95 ++++++++++++++++++++++++++++++----
qapi/block-core.json | 12 ++++-
6 files changed, 134 insertions(+), 23 deletions(-)
diff --git a/block/monitor/block-hmp-cmds.c b/block/monitor/block-hmp-cmds.c
index d485c3ac79..fdc85a5c0e 100644
--- a/block/monitor/block-hmp-cmds.c
+++ b/block/monitor/block-hmp-cmds.c
@@ -1038,6 +1038,7 @@ void hmp_backup(Monitor *mon, const QDict *qdict)
false, NULL, // PBS fingerprint
false, NULL, // PBS backup-id
false, 0, // PBS backup-time
+ false, false, // PBS incremental
true, dir ? BACKUP_FORMAT_DIR : BACKUP_FORMAT_VMA,
false, NULL, false, NULL, !!devlist,
devlist, qdict_haskey(qdict, "speed"), speed, &error);
diff --git a/monitor/hmp-cmds.c b/monitor/hmp-cmds.c
index 0e2d166552..3ff014d32a 100644
--- a/monitor/hmp-cmds.c
+++ b/monitor/hmp-cmds.c
@@ -218,19 +218,42 @@ void hmp_info_backup(Monitor *mon, const QDict *qdict)
monitor_printf(mon, "End time: %s", ctime(&info->end_time));
}
- int per = (info->has_total && info->total &&
- info->has_transferred && info->transferred) ?
- (info->transferred * 100)/info->total : 0;
- int zero_per = (info->has_total && info->total &&
- info->has_zero_bytes && info->zero_bytes) ?
- (info->zero_bytes * 100)/info->total : 0;
monitor_printf(mon, "Backup file: %s\n", info->backup_file);
monitor_printf(mon, "Backup uuid: %s\n", info->uuid);
- monitor_printf(mon, "Total size: %zd\n", info->total);
- monitor_printf(mon, "Transferred bytes: %zd (%d%%)\n",
- info->transferred, per);
- monitor_printf(mon, "Zero bytes: %zd (%d%%)\n",
- info->zero_bytes, zero_per);
+
+ if (!(info->has_total && info->total)) {
+ // this should not happen normally
+ monitor_printf(mon, "Total size: %d\n", 0);
+ } else {
+ bool incremental = false;
+ size_t total_or_dirty = info->total;
+ if (info->has_transferred) {
+ if (info->has_dirty && info->dirty) {
+ if (info->dirty < info->total) {
+ total_or_dirty = info->dirty;
+ incremental = true;
+ }
+ }
+ }
+
+ int per = (info->transferred * 100)/total_or_dirty;
+
+ monitor_printf(mon, "Backup mode: %s\n", incremental ? "incremental" : "full");
+
+ int zero_per = (info->has_zero_bytes && info->zero_bytes) ?
+ (info->zero_bytes * 100)/info->total : 0;
+ monitor_printf(mon, "Total size: %zd\n", info->total);
+ monitor_printf(mon, "Transferred bytes: %zd (%d%%)\n",
+ info->transferred, per);
+ monitor_printf(mon, "Zero bytes: %zd (%d%%)\n",
+ info->zero_bytes, zero_per);
+
+ if (info->has_reused) {
+ int reused_per = (info->reused * 100)/total_or_dirty;
+ monitor_printf(mon, "Reused bytes: %zd (%d%%)\n",
+ info->reused, reused_per);
+ }
+ }
}
qapi_free_BackupStatus(info);
diff --git a/proxmox-backup-client.c b/proxmox-backup-client.c
index a8f6653a81..4ce7bc0b5e 100644
--- a/proxmox-backup-client.c
+++ b/proxmox-backup-client.c
@@ -89,6 +89,7 @@ proxmox_backup_co_register_image(
ProxmoxBackupHandle *pbs,
const char *device_name,
uint64_t size,
+ bool incremental,
Error **errp)
{
Coroutine *co = qemu_coroutine_self();
@@ -98,7 +99,7 @@ proxmox_backup_co_register_image(
int pbs_res = -1;
proxmox_backup_register_image_async(
- pbs, device_name, size ,proxmox_backup_schedule_wake, &waker, &pbs_res, &pbs_err);
+ pbs, device_name, size, incremental, proxmox_backup_schedule_wake, &waker, &pbs_res, &pbs_err);
qemu_coroutine_yield();
if (pbs_res < 0) {
if (errp) error_setg(errp, "backup register image failed: %s", pbs_err ? pbs_err : "unknown error");
diff --git a/proxmox-backup-client.h b/proxmox-backup-client.h
index 1dda8b7d8f..8cbf645b2c 100644
--- a/proxmox-backup-client.h
+++ b/proxmox-backup-client.h
@@ -32,6 +32,7 @@ proxmox_backup_co_register_image(
ProxmoxBackupHandle *pbs,
const char *device_name,
uint64_t size,
+ bool incremental,
Error **errp);
diff --git a/pve-backup.c b/pve-backup.c
index d40f3f2fd6..d50f03a050 100644
--- a/pve-backup.c
+++ b/pve-backup.c
@@ -28,6 +28,8 @@
*
*/
+const char *PBS_BITMAP_NAME = "pbs-incremental-dirty-bitmap";
+
static struct PVEBackupState {
struct {
// Everithing accessed from qmp_backup_query command is protected using lock
@@ -39,7 +41,9 @@ static struct PVEBackupState {
uuid_t uuid;
char uuid_str[37];
size_t total;
+ size_t dirty;
size_t transferred;
+ size_t reused;
size_t zero_bytes;
} stat;
int64_t speed;
@@ -66,6 +70,7 @@ typedef struct PVEBackupDevInfo {
uint8_t dev_id;
bool completed;
char targetfile[PATH_MAX];
+ BdrvDirtyBitmap *bitmap;
BlockDriverState *target;
} PVEBackupDevInfo;
@@ -105,11 +110,12 @@ static bool pvebackup_error_or_canceled(void)
return error_or_canceled;
}
-static void pvebackup_add_transfered_bytes(size_t transferred, size_t zero_bytes)
+static void pvebackup_add_transfered_bytes(size_t transferred, size_t zero_bytes, size_t reused)
{
qemu_mutex_lock(&backup_state.stat.lock);
backup_state.stat.zero_bytes += zero_bytes;
backup_state.stat.transferred += transferred;
+ backup_state.stat.reused += reused;
qemu_mutex_unlock(&backup_state.stat.lock);
}
@@ -148,7 +154,8 @@ pvebackup_co_dump_pbs_cb(
pvebackup_propagate_error(local_err);
return pbs_res;
} else {
- pvebackup_add_transfered_bytes(size, !buf ? size : 0);
+ size_t reused = (pbs_res == 0) ? size : 0;
+ pvebackup_add_transfered_bytes(size, !buf ? size : 0, reused);
}
return size;
@@ -208,11 +215,11 @@ pvebackup_co_dump_vma_cb(
} else {
if (remaining >= VMA_CLUSTER_SIZE) {
assert(ret == VMA_CLUSTER_SIZE);
- pvebackup_add_transfered_bytes(VMA_CLUSTER_SIZE, zero_bytes);
+ pvebackup_add_transfered_bytes(VMA_CLUSTER_SIZE, zero_bytes, 0);
remaining -= VMA_CLUSTER_SIZE;
} else {
assert(ret == remaining);
- pvebackup_add_transfered_bytes(remaining, zero_bytes);
+ pvebackup_add_transfered_bytes(remaining, zero_bytes, 0);
remaining = 0;
}
}
@@ -248,6 +255,18 @@ static void coroutine_fn pvebackup_co_cleanup(void *unused)
if (local_err != NULL) {
pvebackup_propagate_error(local_err);
}
+ } else {
+ // on error or cancel we cannot ensure synchronization of dirty
+ // bitmaps with backup server, so remove all and do full backup next
+ GList *l = backup_state.di_list;
+ while (l) {
+ PVEBackupDevInfo *di = (PVEBackupDevInfo *)l->data;
+ l = g_list_next(l);
+
+ if (di->bitmap) {
+ bdrv_release_dirty_bitmap(di->bitmap);
+ }
+ }
}
proxmox_backup_disconnect(backup_state.pbs);
@@ -303,6 +322,12 @@ static void pvebackup_complete_cb(void *opaque, int ret)
// remove self from job queue
backup_state.di_list = g_list_remove(backup_state.di_list, di);
+ if (di->bitmap && ret < 0) {
+ // on error or cancel we cannot ensure synchronization of dirty
+ // bitmaps with backup server, so remove all and do full backup next
+ bdrv_release_dirty_bitmap(di->bitmap);
+ }
+
g_free(di);
qemu_mutex_unlock(&backup_state.backup_mutex);
@@ -470,12 +495,18 @@ static bool create_backup_jobs(void) {
assert(di->target != NULL);
+ MirrorSyncMode sync_mode = MIRROR_SYNC_MODE_FULL;
+ BitmapSyncMode bitmap_mode = BITMAP_SYNC_MODE_NEVER;
+ if (di->bitmap) {
+ sync_mode = MIRROR_SYNC_MODE_BITMAP;
+ bitmap_mode = BITMAP_SYNC_MODE_ON_SUCCESS;
+ }
AioContext *aio_context = bdrv_get_aio_context(di->bs);
aio_context_acquire(aio_context);
BlockJob *job = backup_job_create(
- NULL, di->bs, di->target, backup_state.speed, MIRROR_SYNC_MODE_FULL, NULL,
- BITMAP_SYNC_MODE_NEVER, false, NULL, BLOCKDEV_ON_ERROR_REPORT, BLOCKDEV_ON_ERROR_REPORT,
+ NULL, di->bs, di->target, backup_state.speed, sync_mode, di->bitmap,
+ bitmap_mode, false, NULL, BLOCKDEV_ON_ERROR_REPORT, BLOCKDEV_ON_ERROR_REPORT,
JOB_DEFAULT, pvebackup_complete_cb, di, 1, NULL, &local_err);
aio_context_release(aio_context);
@@ -526,6 +557,8 @@ typedef struct QmpBackupTask {
const char *fingerprint;
bool has_fingerprint;
int64_t backup_time;
+ bool has_incremental;
+ bool incremental;
bool has_format;
BackupFormat format;
bool has_config_file;
@@ -617,6 +650,7 @@ static void coroutine_fn pvebackup_co_prepare(void *opaque)
}
size_t total = 0;
+ size_t dirty = 0;
l = di_list;
while (l) {
@@ -654,6 +688,8 @@ static void coroutine_fn pvebackup_co_prepare(void *opaque)
int dump_cb_block_size = PROXMOX_BACKUP_DEFAULT_CHUNK_SIZE; // Hardcoded (4M)
firewall_name = "fw.conf";
+ bool incremental = task->has_incremental && task->incremental;
+
char *pbs_err = NULL;
pbs = proxmox_backup_new(
task->backup_file,
@@ -673,7 +709,8 @@ static void coroutine_fn pvebackup_co_prepare(void *opaque)
goto err;
}
- if (proxmox_backup_co_connect(pbs, task->errp) < 0)
+ int connect_result = proxmox_backup_co_connect(pbs, task->errp);
+ if (connect_result < 0)
goto err;
/* register all devices */
@@ -684,9 +721,32 @@ static void coroutine_fn pvebackup_co_prepare(void *opaque)
const char *devname = bdrv_get_device_name(di->bs);
- int dev_id = proxmox_backup_co_register_image(pbs, devname, di->size, task->errp);
- if (dev_id < 0)
+ BdrvDirtyBitmap *bitmap = bdrv_find_dirty_bitmap(di->bs, PBS_BITMAP_NAME);
+
+ bool use_incremental = false;
+ if (incremental) {
+ if (bitmap == NULL) {
+ bitmap = bdrv_create_dirty_bitmap(di->bs, dump_cb_block_size, PBS_BITMAP_NAME, task->errp);
+ if (!bitmap) {
+ goto err;
+ }
+ /* mark entire bitmap as dirty to make full backup first */
+ bdrv_set_dirty_bitmap(bitmap, 0, di->size);
+ dirty += di->size;
+ } else {
+ use_incremental = true;
+ dirty += bdrv_get_dirty_count(bitmap);
+ }
+ di->bitmap = bitmap;
+ } else if (bitmap != NULL) {
+ dirty += di->size;
+ bdrv_release_dirty_bitmap(bitmap);
+ }
+
+ int dev_id = proxmox_backup_co_register_image(pbs, devname, di->size, use_incremental, task->errp);
+ if (dev_id < 0) {
goto err;
+ }
if (!(di->target = bdrv_backup_dump_create(dump_cb_block_size, di->size, pvebackup_co_dump_pbs_cb, di, task->errp))) {
goto err;
@@ -695,6 +755,8 @@ static void coroutine_fn pvebackup_co_prepare(void *opaque)
di->dev_id = dev_id;
}
} else if (format == BACKUP_FORMAT_VMA) {
+ dirty = total;
+
vmaw = vma_writer_create(task->backup_file, uuid, &local_err);
if (!vmaw) {
if (local_err) {
@@ -722,6 +784,8 @@ static void coroutine_fn pvebackup_co_prepare(void *opaque)
}
}
} else if (format == BACKUP_FORMAT_DIR) {
+ dirty = total;
+
if (mkdir(task->backup_file, 0640) != 0) {
error_setg_errno(task->errp, errno, "can't create directory '%s'\n",
task->backup_file);
@@ -794,8 +858,10 @@ static void coroutine_fn pvebackup_co_prepare(void *opaque)
char *uuid_str = g_strdup(backup_state.stat.uuid_str);
backup_state.stat.total = total;
+ backup_state.stat.dirty = dirty;
backup_state.stat.transferred = 0;
backup_state.stat.zero_bytes = 0;
+ backup_state.stat.reused = dirty >= total ? 0 : total - dirty;
qemu_mutex_unlock(&backup_state.stat.lock);
@@ -819,6 +885,10 @@ err:
PVEBackupDevInfo *di = (PVEBackupDevInfo *)l->data;
l = g_list_next(l);
+ if (di->bitmap) {
+ bdrv_release_dirty_bitmap(di->bitmap);
+ }
+
if (di->target) {
bdrv_unref(di->target);
}
@@ -860,6 +930,7 @@ UuidInfo *qmp_backup(
bool has_fingerprint, const char *fingerprint,
bool has_backup_id, const char *backup_id,
bool has_backup_time, int64_t backup_time,
+ bool has_incremental, bool incremental,
bool has_format, BackupFormat format,
bool has_config_file, const char *config_file,
bool has_firewall_file, const char *firewall_file,
@@ -878,6 +949,8 @@ UuidInfo *qmp_backup(
.backup_id = backup_id,
.has_backup_time = has_backup_time,
.backup_time = backup_time,
+ .has_incremental = has_incremental,
+ .incremental = incremental,
.has_format = has_format,
.format = format,
.has_config_file = has_config_file,
@@ -946,10 +1019,14 @@ BackupStatus *qmp_query_backup(Error **errp)
info->has_total = true;
info->total = backup_state.stat.total;
+ info->has_dirty = true;
+ info->dirty = backup_state.stat.dirty;
info->has_zero_bytes = true;
info->zero_bytes = backup_state.stat.zero_bytes;
info->has_transferred = true;
info->transferred = backup_state.stat.transferred;
+ info->has_reused = true;
+ info->reused = backup_state.stat.reused;
qemu_mutex_unlock(&backup_state.stat.lock);
diff --git a/qapi/block-core.json b/qapi/block-core.json
index 9db8e26517..6cad1e0e38 100644
--- a/qapi/block-core.json
+++ b/qapi/block-core.json
@@ -767,8 +767,13 @@
#
# @total: total amount of bytes involved in the backup process
#
+# @dirty: with incremental mode, this is the amount of bytes involved
+# in the backup process which are marked dirty.
+#
# @transferred: amount of bytes already backed up.
#
+# @reused: amount of bytes reused due to deduplication.
+#
# @zero-bytes: amount of 'zero' bytes detected.
#
# @start-time: time (epoch) when backup job started.
@@ -781,8 +786,8 @@
#
##
{ 'struct': 'BackupStatus',
- 'data': {'*status': 'str', '*errmsg': 'str', '*total': 'int',
- '*transferred': 'int', '*zero-bytes': 'int',
+ 'data': {'*status': 'str', '*errmsg': 'str', '*total': 'int', '*dirty': 'int',
+ '*transferred': 'int', '*zero-bytes': 'int', '*reused': 'int',
'*start-time': 'int', '*end-time': 'int',
'*backup-file': 'str', '*uuid': 'str' } }
@@ -825,6 +830,8 @@
#
# @backup-time: backup timestamp (Unix epoch, required for format 'pbs')
#
+# @incremental: sync incremental changes since last job (optional for format 'pbs')
+#
# Returns: the uuid of the backup job
#
##
@@ -835,6 +842,7 @@
'*fingerprint': 'str',
'*backup-id': 'str',
'*backup-time': 'int',
+ '*incremental': 'bool',
'*format': 'BackupFormat',
'*config-file': 'str',
'*firewall-file': 'str',

View File

@@ -1,25 +0,0 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Stefan Reiter <s.reiter@proxmox.com>
Date: Tue, 2 Mar 2021 16:34:28 +0100
Subject: [PATCH] PVE: block/stream: increase chunk size
Ceph favors bigger chunks, so increase to 4M.
Signed-off-by: Thomas Lamprecht <t.lamprecht@proxmox.com>
---
block/stream.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/block/stream.c b/block/stream.c
index 7031eef12b..d2da83ae7c 100644
--- a/block/stream.c
+++ b/block/stream.c
@@ -27,7 +27,7 @@ enum {
* large enough to process multiple clusters in a single call, so
* that populating contiguous regions of the image is efficient.
*/
- STREAM_CHUNK = 512 * 1024, /* in bytes */
+ STREAM_CHUNK = 4 * 1024 * 1024, /* in bytes */
};
typedef struct StreamBlockJob {

View File

@@ -0,0 +1,126 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Thomas Lamprecht <t.lamprecht@proxmox.com>
Date: Mon, 6 Jul 2020 20:05:16 +0200
Subject: [PATCH] PVE backup: rename incremental to use-dirty-bitmap
Signed-off-by: Thomas Lamprecht <t.lamprecht@proxmox.com>
Signed-off-by: Stefan Reiter <s.reiter@proxmox.com>
---
pve-backup.c | 22 +++++++++++-----------
qapi/block-core.json | 6 +++---
2 files changed, 14 insertions(+), 14 deletions(-)
diff --git a/pve-backup.c b/pve-backup.c
index d50f03a050..7bf54b4c5d 100644
--- a/pve-backup.c
+++ b/pve-backup.c
@@ -557,8 +557,8 @@ typedef struct QmpBackupTask {
const char *fingerprint;
bool has_fingerprint;
int64_t backup_time;
- bool has_incremental;
- bool incremental;
+ bool has_use_dirty_bitmap;
+ bool use_dirty_bitmap;
bool has_format;
BackupFormat format;
bool has_config_file;
@@ -688,7 +688,7 @@ static void coroutine_fn pvebackup_co_prepare(void *opaque)
int dump_cb_block_size = PROXMOX_BACKUP_DEFAULT_CHUNK_SIZE; // Hardcoded (4M)
firewall_name = "fw.conf";
- bool incremental = task->has_incremental && task->incremental;
+ bool use_dirty_bitmap = task->has_use_dirty_bitmap && task->use_dirty_bitmap;
char *pbs_err = NULL;
pbs = proxmox_backup_new(
@@ -722,9 +722,9 @@ static void coroutine_fn pvebackup_co_prepare(void *opaque)
const char *devname = bdrv_get_device_name(di->bs);
BdrvDirtyBitmap *bitmap = bdrv_find_dirty_bitmap(di->bs, PBS_BITMAP_NAME);
+ bool expect_only_dirty = false;
- bool use_incremental = false;
- if (incremental) {
+ if (use_dirty_bitmap) {
if (bitmap == NULL) {
bitmap = bdrv_create_dirty_bitmap(di->bs, dump_cb_block_size, PBS_BITMAP_NAME, task->errp);
if (!bitmap) {
@@ -734,7 +734,7 @@ static void coroutine_fn pvebackup_co_prepare(void *opaque)
bdrv_set_dirty_bitmap(bitmap, 0, di->size);
dirty += di->size;
} else {
- use_incremental = true;
+ expect_only_dirty = true;
dirty += bdrv_get_dirty_count(bitmap);
}
di->bitmap = bitmap;
@@ -743,7 +743,7 @@ static void coroutine_fn pvebackup_co_prepare(void *opaque)
bdrv_release_dirty_bitmap(bitmap);
}
- int dev_id = proxmox_backup_co_register_image(pbs, devname, di->size, use_incremental, task->errp);
+ int dev_id = proxmox_backup_co_register_image(pbs, devname, di->size, expect_only_dirty, task->errp);
if (dev_id < 0) {
goto err;
}
@@ -861,7 +861,7 @@ static void coroutine_fn pvebackup_co_prepare(void *opaque)
backup_state.stat.dirty = dirty;
backup_state.stat.transferred = 0;
backup_state.stat.zero_bytes = 0;
- backup_state.stat.reused = dirty >= total ? 0 : total - dirty;
+ backup_state.stat.reused = format == BACKUP_FORMAT_PBS && dirty >= total ? 0 : total - dirty;
qemu_mutex_unlock(&backup_state.stat.lock);
@@ -930,7 +930,7 @@ UuidInfo *qmp_backup(
bool has_fingerprint, const char *fingerprint,
bool has_backup_id, const char *backup_id,
bool has_backup_time, int64_t backup_time,
- bool has_incremental, bool incremental,
+ bool has_use_dirty_bitmap, bool use_dirty_bitmap,
bool has_format, BackupFormat format,
bool has_config_file, const char *config_file,
bool has_firewall_file, const char *firewall_file,
@@ -949,8 +949,8 @@ UuidInfo *qmp_backup(
.backup_id = backup_id,
.has_backup_time = has_backup_time,
.backup_time = backup_time,
- .has_incremental = has_incremental,
- .incremental = incremental,
+ .has_use_dirty_bitmap = has_use_dirty_bitmap,
+ .use_dirty_bitmap = use_dirty_bitmap,
.has_format = has_format,
.format = format,
.has_config_file = has_config_file,
diff --git a/qapi/block-core.json b/qapi/block-core.json
index 6cad1e0e38..e00e577c6c 100644
--- a/qapi/block-core.json
+++ b/qapi/block-core.json
@@ -767,7 +767,7 @@
#
# @total: total amount of bytes involved in the backup process
#
-# @dirty: with incremental mode, this is the amount of bytes involved
+# @dirty: with incremental mode (PBS) this is the amount of bytes involved
# in the backup process which are marked dirty.
#
# @transferred: amount of bytes already backed up.
@@ -830,7 +830,7 @@
#
# @backup-time: backup timestamp (Unix epoch, required for format 'pbs')
#
-# @incremental: sync incremental changes since last job (optional for format 'pbs')
+# @use-dirty-bitmap: use dirty bitmap to detect incremental changes since last job (optional for format 'pbs')
#
# Returns: the uuid of the backup job
#
@@ -842,7 +842,7 @@
'*fingerprint': 'str',
'*backup-id': 'str',
'*backup-time': 'int',
- '*incremental': 'bool',
+ '*use-dirty-bitmap': 'bool',
'*format': 'BackupFormat',
'*config-file': 'str',
'*firewall-file': 'str',

View File

@@ -1,471 +0,0 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Stefan Reiter <s.reiter@proxmox.com>
Date: Mon, 7 Dec 2020 15:21:03 +0100
Subject: [PATCH] block: add alloc-track driver
Add a new filter node 'alloc-track', which seperates reads and writes to
different children, thus allowing to put a backing image behind any
blockdev (regardless of driver support). Since we can't detect any
pre-allocated blocks, we can only track new writes, hence the write
target ('file') for this node must always be empty.
Intended use case is for live restoring, i.e. add a backup image as a
block device into a VM, then put an alloc-track on the restore target
and set the backup as backing. With this, one can use a regular
'block-stream' to restore the image, while the VM can already run in the
background. Copy-on-read will help make progress as the VM reads as
well.
This only worked if the target supports backing images, so up until now
only for qcow2, with alloc-track any driver for the target can be used.
Replacing the node cannot be done in the
track_co_change_backing_file() callback, because replacing a node
cannot happen in a coroutine and requires the block graph lock
exclusively. Could either become a special option for the stream job,
or maybe the upcoming blockdev-replace QMP command can be used in the
future.
Signed-off-by: Stefan Reiter <s.reiter@proxmox.com>
Signed-off-by: Thomas Lamprecht <t.lamprecht@proxmox.com>
[FE: adapt to changed function signatures
make error return value consistent with QEMU
avoid premature break during read
adhere to block graph lock requirements]
Signed-off-by: Fiona Ebner <f.ebner@proxmox.com>
---
block/alloc-track.c | 366 ++++++++++++++++++++++++++++++++++++++++++++
block/meson.build | 1 +
block/stream.c | 34 ++++
3 files changed, 401 insertions(+)
create mode 100644 block/alloc-track.c
diff --git a/block/alloc-track.c b/block/alloc-track.c
new file mode 100644
index 0000000000..b9f8ea9137
--- /dev/null
+++ b/block/alloc-track.c
@@ -0,0 +1,366 @@
+/*
+ * Node to allow backing images to be applied to any node. Assumes a blank
+ * image to begin with, only new writes are tracked as allocated, thus this
+ * must never be put on a node that already contains data.
+ *
+ * Copyright (c) 2020 Proxmox Server Solutions GmbH
+ * Copyright (c) 2020 Stefan Reiter <s.reiter@proxmox.com>
+ *
+ * This work is licensed under the terms of the GNU GPL, version 2 or later.
+ * See the COPYING file in the top-level directory.
+ */
+
+#include "qemu/osdep.h"
+#include "qapi/error.h"
+#include "block/block_int.h"
+#include "block/dirty-bitmap.h"
+#include "block/graph-lock.h"
+#include "qapi/qmp/qdict.h"
+#include "qapi/qmp/qstring.h"
+#include "qemu/cutils.h"
+#include "qemu/error-report.h"
+#include "qemu/option.h"
+#include "qemu/module.h"
+#include "sysemu/block-backend.h"
+
+#define TRACK_OPT_AUTO_REMOVE "auto-remove"
+
+typedef enum DropState {
+ DropNone,
+ DropInProgress,
+} DropState;
+
+typedef struct {
+ BdrvDirtyBitmap *bitmap;
+ uint64_t granularity;
+ DropState drop_state;
+ bool auto_remove;
+} BDRVAllocTrackState;
+
+static QemuOptsList runtime_opts = {
+ .name = "alloc-track",
+ .head = QTAILQ_HEAD_INITIALIZER(runtime_opts.head),
+ .desc = {
+ {
+ .name = TRACK_OPT_AUTO_REMOVE,
+ .type = QEMU_OPT_BOOL,
+ .help = "automatically replace this node with 'file' when 'backing'"
+ "is detached",
+ },
+ { /* end of list */ }
+ },
+};
+
+static void GRAPH_RDLOCK
+track_refresh_limits(BlockDriverState *bs, Error **errp)
+{
+ BDRVAllocTrackState *s = bs->opaque;
+
+ if (!bs->file) {
+ return;
+ }
+
+ /*
+ * Always use alignment from underlying write device so RMW cycle for
+ * bdrv_pwritev reads data from our backing via track_co_preadv. Also use at
+ * least the bitmap granularity.
+ */
+ bs->bl.request_alignment = MAX(bs->file->bs->bl.request_alignment,
+ s->granularity);
+}
+
+static int track_open(BlockDriverState *bs, QDict *options, int flags,
+ Error **errp)
+{
+ BDRVAllocTrackState *s = bs->opaque;
+ BdrvChild *file = NULL;
+ QemuOpts *opts;
+ Error *local_err = NULL;
+ int ret = 0;
+
+ opts = qemu_opts_create(&runtime_opts, NULL, 0, &error_abort);
+ qemu_opts_absorb_qdict(opts, options, &local_err);
+ if (local_err) {
+ error_propagate(errp, local_err);
+ ret = -EINVAL;
+ goto fail;
+ }
+
+ s->auto_remove = qemu_opt_get_bool(opts, TRACK_OPT_AUTO_REMOVE, false);
+
+ /* open the target (write) node, backing will be attached by block layer */
+ file = bdrv_open_child(NULL, options, "file", bs, &child_of_bds,
+ BDRV_CHILD_DATA | BDRV_CHILD_METADATA, false,
+ &local_err);
+ bdrv_graph_wrlock();
+ bs->file = file;
+ bdrv_graph_wrunlock();
+ if (local_err) {
+ ret = -EINVAL;
+ error_propagate(errp, local_err);
+ goto fail;
+ }
+
+ bdrv_graph_rdlock_main_loop();
+ BlockDriverInfo bdi = {0};
+ ret = bdrv_get_info(bs->file->bs, &bdi);
+ if (ret < 0) {
+ /*
+ * Not a hard failure. Worst that can happen is partial cluster
+ * allocation in the write target. However, the driver here returns its
+ * allocation status based on the dirty bitmap, so any other data that
+ * maps to such a cluster will still be copied later by a stream job (or
+ * during writes to that cluster).
+ */
+ warn_report("alloc-track: unable to query cluster size for write target: %s",
+ strerror(ret));
+ }
+ ret = 0;
+ /*
+ * Always consider alignment from underlying write device so RMW cycle for
+ * bdrv_pwritev reads data from our backing via track_co_preadv. Also try to
+ * avoid partial cluster allocation in the write target by considering the
+ * cluster size.
+ */
+ s->granularity = MAX(bs->file->bs->bl.request_alignment,
+ MAX(bdi.cluster_size, BDRV_SECTOR_SIZE));
+ track_refresh_limits(bs, errp);
+ s->bitmap = bdrv_create_dirty_bitmap(bs->file->bs, s->granularity, NULL,
+ &local_err);
+ bdrv_graph_rdunlock_main_loop();
+ if (local_err) {
+ ret = -EIO;
+ error_propagate(errp, local_err);
+ goto fail;
+ }
+
+ s->drop_state = DropNone;
+
+fail:
+ if (ret < 0) {
+ bdrv_graph_wrlock();
+ bdrv_unref_child(bs, bs->file);
+ bdrv_graph_wrunlock();
+ if (s->bitmap) {
+ bdrv_release_dirty_bitmap(s->bitmap);
+ }
+ }
+ qemu_opts_del(opts);
+ return ret;
+}
+
+static void track_close(BlockDriverState *bs)
+{
+ BDRVAllocTrackState *s = bs->opaque;
+ if (s->bitmap) {
+ bdrv_release_dirty_bitmap(s->bitmap);
+ }
+}
+
+static coroutine_fn int64_t GRAPH_RDLOCK
+track_co_getlength(BlockDriverState *bs)
+{
+ return bdrv_co_getlength(bs->file->bs);
+}
+
+static int coroutine_fn GRAPH_RDLOCK
+track_co_preadv(BlockDriverState *bs, int64_t offset, int64_t bytes,
+ QEMUIOVector *qiov, BdrvRequestFlags flags)
+{
+ BDRVAllocTrackState *s = bs->opaque;
+ QEMUIOVector local_qiov;
+ int ret;
+
+ /* 'cur_offset' is relative to 'offset', 'local_offset' to image start */
+ uint64_t cur_offset, local_offset;
+ int64_t local_bytes;
+ bool alloc;
+
+ if (offset < 0 || bytes < 0) {
+ fprintf(stderr, "unexpected negative 'offset' or 'bytes' value!\n");
+ return -EIO;
+ }
+
+ /* a read request can span multiple granularity-sized chunks, and can thus
+ * contain blocks with different allocation status - we could just iterate
+ * granularity-wise, but for better performance use bdrv_dirty_bitmap_next_X
+ * to find the next flip and consider everything up to that in one go */
+ for (cur_offset = 0; cur_offset < bytes; cur_offset += local_bytes) {
+ local_offset = offset + cur_offset;
+ alloc = bdrv_dirty_bitmap_get(s->bitmap, local_offset);
+ if (alloc) {
+ local_bytes = bdrv_dirty_bitmap_next_zero(s->bitmap, local_offset,
+ bytes - cur_offset);
+ } else {
+ local_bytes = bdrv_dirty_bitmap_next_dirty(s->bitmap, local_offset,
+ bytes - cur_offset);
+ }
+
+ /* _bitmap_next_X return is -1 if no end found within limit, otherwise
+ * offset of next flip (to start of image) */
+ local_bytes = local_bytes < 0 ?
+ bytes - cur_offset :
+ local_bytes - local_offset;
+
+ qemu_iovec_init_slice(&local_qiov, qiov, cur_offset, local_bytes);
+
+ if (alloc) {
+ ret = bdrv_co_preadv(bs->file, local_offset, local_bytes,
+ &local_qiov, flags);
+ } else if (bs->backing) {
+ ret = bdrv_co_preadv(bs->backing, local_offset, local_bytes,
+ &local_qiov, flags);
+ } else {
+ qemu_iovec_memset(&local_qiov, cur_offset, 0, local_bytes);
+ ret = 0;
+ }
+
+ if (ret != 0) {
+ break;
+ }
+ }
+
+ return ret;
+}
+
+static int coroutine_fn GRAPH_RDLOCK
+track_co_pwritev(BlockDriverState *bs, int64_t offset, int64_t bytes,
+ QEMUIOVector *qiov, BdrvRequestFlags flags)
+{
+ return bdrv_co_pwritev(bs->file, offset, bytes, qiov, flags);
+}
+
+static int coroutine_fn GRAPH_RDLOCK
+track_co_pwrite_zeroes(BlockDriverState *bs, int64_t offset, int64_t bytes,
+ BdrvRequestFlags flags)
+{
+ return bdrv_co_pwrite_zeroes(bs->file, offset, bytes, flags);
+}
+
+static int coroutine_fn GRAPH_RDLOCK
+track_co_pdiscard(BlockDriverState *bs, int64_t offset, int64_t bytes)
+{
+ return bdrv_co_pdiscard(bs->file, offset, bytes);
+}
+
+static coroutine_fn int GRAPH_RDLOCK
+track_co_flush(BlockDriverState *bs)
+{
+ return bdrv_co_flush(bs->file->bs);
+}
+
+static int coroutine_fn GRAPH_RDLOCK
+track_co_block_status(BlockDriverState *bs, bool want_zero,
+ int64_t offset,
+ int64_t bytes,
+ int64_t *pnum,
+ int64_t *map,
+ BlockDriverState **file)
+{
+ BDRVAllocTrackState *s = bs->opaque;
+
+ bool alloc = bdrv_dirty_bitmap_get(s->bitmap, offset);
+ int64_t next_flipped;
+ if (alloc) {
+ next_flipped = bdrv_dirty_bitmap_next_zero(s->bitmap, offset, bytes);
+ } else {
+ next_flipped = bdrv_dirty_bitmap_next_dirty(s->bitmap, offset, bytes);
+ }
+
+ /* in case not the entire region has the same state, we need to set pnum to
+ * indicate for how many bytes our result is valid */
+ *pnum = next_flipped == -1 ? bytes : next_flipped - offset;
+ *map = offset;
+
+ if (alloc) {
+ *file = bs->file->bs;
+ return BDRV_BLOCK_RAW | BDRV_BLOCK_OFFSET_VALID;
+ } else if (bs->backing) {
+ *file = bs->backing->bs;
+ }
+ return 0;
+}
+
+static void GRAPH_RDLOCK
+track_child_perm(BlockDriverState *bs, BdrvChild *c, BdrvChildRole role,
+ BlockReopenQueue *reopen_queue, uint64_t perm, uint64_t shared,
+ uint64_t *nperm, uint64_t *nshared)
+{
+ BDRVAllocTrackState *s = bs->opaque;
+
+ *nshared = BLK_PERM_ALL;
+
+ /* in case we're currently dropping ourselves, claim to not use any
+ * permissions at all - which is fine, since from this point on we will
+ * never issue a read or write anymore */
+ if (s->drop_state == DropInProgress) {
+ *nperm = 0;
+ return;
+ }
+
+ if (role & BDRV_CHILD_DATA) {
+ *nperm = perm & DEFAULT_PERM_PASSTHROUGH;
+ } else {
+ /* 'backing' is also a child of our BDS, but we don't expect it to be
+ * writeable, so we only forward 'consistent read' */
+ *nperm = perm & BLK_PERM_CONSISTENT_READ;
+ }
+}
+
+static int coroutine_fn GRAPH_RDLOCK
+track_co_change_backing_file(BlockDriverState *bs, const char *backing_file,
+ const char *backing_fmt)
+{
+ /*
+ * Note that the actual backing file graph change is already done in the
+ * stream job itself with bdrv_set_backing_hd_drained(), so no need to
+ * actually do anything here. But still needs to be implemented, to make
+ * our caller (i.e. bdrv_co_change_backing_file() do the right thing).
+ *
+ * FIXME
+ * We'd like to auto-remove ourselves from the block graph, but it cannot
+ * be done from a coroutine. Currently done in the stream job, where it
+ * kinda fits better, but in the long-term, a special parameter would be
+ * nice (or done via qemu-server via upcoming blockdev-replace QMP command).
+ */
+ if (backing_file == NULL) {
+ BDRVAllocTrackState *s = bs->opaque;
+ bdrv_drained_begin(bs);
+ s->drop_state = DropInProgress;
+ bdrv_child_refresh_perms(bs, bs->file, &error_abort);
+ bdrv_drained_end(bs);
+ }
+
+ return 0;
+}
+
+static BlockDriver bdrv_alloc_track = {
+ .format_name = "alloc-track",
+ .instance_size = sizeof(BDRVAllocTrackState),
+
+ .bdrv_file_open = track_open,
+ .bdrv_close = track_close,
+ .bdrv_co_getlength = track_co_getlength,
+ .bdrv_child_perm = track_child_perm,
+ .bdrv_refresh_limits = track_refresh_limits,
+
+ .bdrv_co_pwrite_zeroes = track_co_pwrite_zeroes,
+ .bdrv_co_pwritev = track_co_pwritev,
+ .bdrv_co_preadv = track_co_preadv,
+ .bdrv_co_pdiscard = track_co_pdiscard,
+
+ .bdrv_co_flush = track_co_flush,
+ .bdrv_co_flush_to_disk = track_co_flush,
+
+ .supports_backing = true,
+
+ .bdrv_co_block_status = track_co_block_status,
+ .bdrv_co_change_backing_file = track_co_change_backing_file,
+};
+
+static void bdrv_alloc_track_init(void)
+{
+ bdrv_register(&bdrv_alloc_track);
+}
+
+block_init(bdrv_alloc_track_init);
diff --git a/block/meson.build b/block/meson.build
index 1945e04eeb..2873f3a25a 100644
--- a/block/meson.build
+++ b/block/meson.build
@@ -2,6 +2,7 @@ block_ss.add(genh)
block_ss.add(files(
'accounting.c',
'aio_task.c',
+ 'alloc-track.c',
'amend.c',
'backup.c',
'backup-dump.c',
diff --git a/block/stream.c b/block/stream.c
index d2da83ae7c..f941cba14e 100644
--- a/block/stream.c
+++ b/block/stream.c
@@ -120,6 +120,40 @@ static int stream_prepare(Job *job)
ret = -EPERM;
goto out;
}
+
+ /*
+ * This cannot be done in the co_change_backing_file callback, because
+ * bdrv_replace_node() cannot be done in a coroutine. The latter also
+ * requires the graph lock exclusively. Only required for the
+ * alloc-track driver.
+ *
+ * The long-term plan is to either have an explicit parameter for the
+ * stream job or use the upcoming blockdev-replace QMP command.
+ */
+ if (base_id == NULL && strcmp(unfiltered_bs->drv->format_name, "alloc-track") == 0) {
+ BlockDriverState *file_bs;
+
+ bdrv_graph_rdlock_main_loop();
+ file_bs = unfiltered_bs->file->bs;
+ bdrv_graph_rdunlock_main_loop();
+
+ bdrv_ref(unfiltered_bs); // unrefed by bdrv_replace_node()
+ bdrv_drained_begin(file_bs);
+ bdrv_graph_wrlock();
+
+ bdrv_replace_node(unfiltered_bs, file_bs, &local_err);
+
+ bdrv_graph_wrunlock();
+ bdrv_drained_end(file_bs);
+ bdrv_unref(unfiltered_bs);
+
+ if (local_err) {
+ error_prepend(&local_err, "failed to replace alloc-track node: ");
+ error_report_err(local_err);
+ ret = -EPERM;
+ goto out;
+ }
+ }
}
out:

View File

@@ -0,0 +1,44 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Stefan Reiter <s.reiter@proxmox.com>
Date: Mon, 6 Jul 2020 14:40:12 +0200
Subject: [PATCH] PVE: fixup pbs-restore API
Signed-off-by: Stefan Reiter <s.reiter@proxmox.com>
---
pbs-restore.c | 10 ++++++++--
1 file changed, 8 insertions(+), 2 deletions(-)
diff --git a/pbs-restore.c b/pbs-restore.c
index 4bf37ef1fa..ff3fc38e8a 100644
--- a/pbs-restore.c
+++ b/pbs-restore.c
@@ -161,13 +161,19 @@ int main(int argc, char **argv)
fprintf(stderr, "connecting to repository '%s'\n", repository);
}
char *pbs_error = NULL;
- ProxmoxRestoreHandle *conn = proxmox_restore_connect(
+ ProxmoxRestoreHandle *conn = proxmox_restore_new(
repository, snapshot, password, keyfile, key_password, fingerprint, &pbs_error);
if (conn == NULL) {
fprintf(stderr, "restore failed: %s\n", pbs_error);
return -1;
}
+ int res = proxmox_restore_connect(conn, &pbs_error);
+ if (res < 0 || pbs_error) {
+ fprintf(stderr, "restore failed (connection error): %s\n", pbs_error);
+ return -1;
+ }
+
QDict *options = qdict_new();
if (format) {
@@ -198,7 +204,7 @@ int main(int argc, char **argv)
fprintf(stderr, "starting to restore snapshot '%s'\n", snapshot);
fflush(stderr); // ensure we do not get printed after the progress log
}
- int res = proxmox_restore_image(
+ res = proxmox_restore_image(
conn,
archive_name,
write_callback,

View File

@@ -1,81 +0,0 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Fabian Ebner <f.ebner@proxmox.com>
Date: Thu, 23 Jun 2022 14:00:05 +0200
Subject: [PATCH] Revert "block/rbd: workaround for ceph issue #53784"
This reverts commit fc176116cdea816ceb8dd969080b2b95f58edbc0 in
preparation to revert 0347a8fd4c3faaedf119be04c197804be40a384b.
Signed-off-by: Fabian Ebner <f.ebner@proxmox.com>
Signed-off-by: Thomas Lamprecht <t.lamprecht@proxmox.com>
---
block/rbd.c | 42 ++----------------------------------------
1 file changed, 2 insertions(+), 40 deletions(-)
diff --git a/block/rbd.c b/block/rbd.c
index 63f60d41be..367db42dce 100644
--- a/block/rbd.c
+++ b/block/rbd.c
@@ -1515,7 +1515,6 @@ static int coroutine_fn qemu_rbd_co_block_status(BlockDriverState *bs,
int status, r;
RBDDiffIterateReq req = { .offs = offset };
uint64_t features, flags;
- uint64_t head = 0;
assert(offset + bytes <= s->image_size);
@@ -1543,43 +1542,7 @@ static int coroutine_fn qemu_rbd_co_block_status(BlockDriverState *bs,
return status;
}
-#if LIBRBD_VERSION_CODE < LIBRBD_VERSION(1, 17, 0)
- /*
- * librbd had a bug until early 2022 that affected all versions of ceph that
- * supported fast-diff. This bug results in reporting of incorrect offsets
- * if the offset parameter to rbd_diff_iterate2 is not object aligned.
- * Work around this bug by rounding down the offset to object boundaries.
- * This is OK because we call rbd_diff_iterate2 with whole_object = true.
- * However, this workaround only works for non cloned images with default
- * striping.
- *
- * See: https://tracker.ceph.com/issues/53784
- */
-
- /* check if RBD image has non-default striping enabled */
- if (features & RBD_FEATURE_STRIPINGV2) {
- return status;
- }
-
-#pragma GCC diagnostic push
-#pragma GCC diagnostic ignored "-Wdeprecated-declarations"
- /*
- * check if RBD image is a clone (= has a parent).
- *
- * rbd_get_parent_info is deprecated from Nautilus onwards, but the
- * replacement rbd_get_parent is not present in Luminous and Mimic.
- */
- if (rbd_get_parent_info(s->image, NULL, 0, NULL, 0, NULL, 0) != -ENOENT) {
- return status;
- }
-#pragma GCC diagnostic pop
-
- head = req.offs & (s->object_size - 1);
- req.offs -= head;
- bytes += head;
-#endif
-
- r = rbd_diff_iterate2(s->image, NULL, req.offs, bytes, true, true,
+ r = rbd_diff_iterate2(s->image, NULL, offset, bytes, true, true,
qemu_rbd_diff_iterate_cb, &req);
if (r < 0 && r != QEMU_RBD_EXIT_DIFF_ITERATE2) {
return status;
@@ -1598,8 +1561,7 @@ static int coroutine_fn qemu_rbd_co_block_status(BlockDriverState *bs,
status = BDRV_BLOCK_ZERO | BDRV_BLOCK_OFFSET_VALID;
}
- assert(req.bytes > head);
- *pnum = req.bytes - head;
+ *pnum = req.bytes;
return status;
}

View File

@@ -0,0 +1,30 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Stefan Reiter <s.reiter@proxmox.com>
Date: Mon, 6 Jul 2020 14:40:13 +0200
Subject: [PATCH] PVE: always set dirty counter for non-incremental backups
Signed-off-by: Stefan Reiter <s.reiter@proxmox.com>
---
pve-backup.c | 8 ++++++--
1 file changed, 6 insertions(+), 2 deletions(-)
diff --git a/pve-backup.c b/pve-backup.c
index 7bf54b4c5d..1f2a0bbe8c 100644
--- a/pve-backup.c
+++ b/pve-backup.c
@@ -738,9 +738,13 @@ static void coroutine_fn pvebackup_co_prepare(void *opaque)
dirty += bdrv_get_dirty_count(bitmap);
}
di->bitmap = bitmap;
- } else if (bitmap != NULL) {
+ } else {
dirty += di->size;
- bdrv_release_dirty_bitmap(bitmap);
+
+ /* after a full backup the old dirty bitmap is invalid anyway */
+ if (bitmap != NULL) {
+ bdrv_release_dirty_bitmap(bitmap);
+ }
}
int dev_id = proxmox_backup_co_register_image(pbs, devname, di->size, expect_only_dirty, task->errp);

View File

@@ -1,36 +0,0 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Fabian Ebner <f.ebner@proxmox.com>
Date: Thu, 23 Jun 2022 14:00:07 +0200
Subject: [PATCH] Revert "block/rbd: fix handling of holes in
.bdrv_co_block_status"
This reverts commit 9e302f64bb407a9bb097b626da97228c2654cfee in
preparation to revert 0347a8fd4c3faaedf119be04c197804be40a384b.
Signed-off-by: Fabian Ebner <f.ebner@proxmox.com>
Signed-off-by: Thomas Lamprecht <t.lamprecht@proxmox.com>
---
block/rbd.c | 10 +++++-----
1 file changed, 5 insertions(+), 5 deletions(-)
diff --git a/block/rbd.c b/block/rbd.c
index 367db42dce..347b121626 100644
--- a/block/rbd.c
+++ b/block/rbd.c
@@ -1474,11 +1474,11 @@ static int qemu_rbd_diff_iterate_cb(uint64_t offs, size_t len,
RBDDiffIterateReq *req = opaque;
assert(req->offs + req->bytes <= offs);
-
- /* treat a hole like an unallocated area and bail out */
- if (!exists) {
- return 0;
- }
+ /*
+ * we do not diff against a snapshot so we should never receive a callback
+ * for a hole.
+ */
+ assert(exists);
if (!req->exists && offs > req->offs) {
/*

View File

@@ -0,0 +1,36 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Stefan Reiter <s.reiter@proxmox.com>
Date: Mon, 6 Jul 2020 14:40:14 +0200
Subject: [PATCH] PVE: use proxmox_backup_check_incremental
Signed-off-by: Stefan Reiter <s.reiter@proxmox.com>
Signed-off-by: Thomas Lamprecht <t.lamprecht@proxmox.com>
---
pve-backup.c | 12 ++++++++----
1 file changed, 8 insertions(+), 4 deletions(-)
diff --git a/pve-backup.c b/pve-backup.c
index 1f2a0bbe8c..1cd9d31d7c 100644
--- a/pve-backup.c
+++ b/pve-backup.c
@@ -730,12 +730,16 @@ static void coroutine_fn pvebackup_co_prepare(void *opaque)
if (!bitmap) {
goto err;
}
- /* mark entire bitmap as dirty to make full backup first */
- bdrv_set_dirty_bitmap(bitmap, 0, di->size);
- dirty += di->size;
} else {
- expect_only_dirty = true;
+ expect_only_dirty = proxmox_backup_check_incremental(pbs, devname, di->size) != 0;
+ }
+
+ if (expect_only_dirty) {
dirty += bdrv_get_dirty_count(bitmap);
+ } else {
+ /* mark entire bitmap as dirty to make full backup */
+ bdrv_set_dirty_bitmap(bitmap, 0, di->size);
+ dirty += di->size;
}
di->bitmap = bitmap;
} else {

View File

@@ -1,162 +0,0 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Fabian Ebner <f.ebner@proxmox.com>
Date: Tue, 17 May 2022 09:46:02 +0200
Subject: [PATCH] Revert "block/rbd: implement bdrv_co_block_status"
During backup, bdrv_co_block_status is called for each block copy
chunk. When RBD is used, the current implementation with
rbd_diff_iterate2() using whole_object=true takes about linearly more
time, depending on the image size. Since there are linearly more
chunks, the slowdown is quadratic, becoming unacceptable for large
images (starting somewhere between 500-1000 GiB in my testing).
This reverts commit 0347a8fd4c3faaedf119be04c197804be40a384b as a
stop-gap measure, until it's clear how to make the implemenation
more efficient.
Upstream bug report:
https://gitlab.com/qemu-project/qemu/-/issues/1026
Signed-off-by: Fabian Ebner <f.ebner@proxmox.com>
Signed-off-by: Thomas Lamprecht <t.lamprecht@proxmox.com>
---
block/rbd.c | 112 ----------------------------------------------------
1 file changed, 112 deletions(-)
diff --git a/block/rbd.c b/block/rbd.c
index 347b121626..e61b359b97 100644
--- a/block/rbd.c
+++ b/block/rbd.c
@@ -108,12 +108,6 @@ typedef struct RBDTask {
int64_t ret;
} RBDTask;
-typedef struct RBDDiffIterateReq {
- uint64_t offs;
- uint64_t bytes;
- bool exists;
-} RBDDiffIterateReq;
-
static int qemu_rbd_connect(rados_t *cluster, rados_ioctx_t *io_ctx,
BlockdevOptionsRbd *opts, bool cache,
const char *keypairs, const char *secretid,
@@ -1460,111 +1454,6 @@ static ImageInfoSpecific *qemu_rbd_get_specific_info(BlockDriverState *bs,
return spec_info;
}
-/*
- * rbd_diff_iterate2 allows to interrupt the exection by returning a negative
- * value in the callback routine. Choose a value that does not conflict with
- * an existing exitcode and return it if we want to prematurely stop the
- * execution because we detected a change in the allocation status.
- */
-#define QEMU_RBD_EXIT_DIFF_ITERATE2 -9000
-
-static int qemu_rbd_diff_iterate_cb(uint64_t offs, size_t len,
- int exists, void *opaque)
-{
- RBDDiffIterateReq *req = opaque;
-
- assert(req->offs + req->bytes <= offs);
- /*
- * we do not diff against a snapshot so we should never receive a callback
- * for a hole.
- */
- assert(exists);
-
- if (!req->exists && offs > req->offs) {
- /*
- * we started in an unallocated area and hit the first allocated
- * block. req->bytes must be set to the length of the unallocated area
- * before the allocated area. stop further processing.
- */
- req->bytes = offs - req->offs;
- return QEMU_RBD_EXIT_DIFF_ITERATE2;
- }
-
- if (req->exists && offs > req->offs + req->bytes) {
- /*
- * we started in an allocated area and jumped over an unallocated area,
- * req->bytes contains the length of the allocated area before the
- * unallocated area. stop further processing.
- */
- return QEMU_RBD_EXIT_DIFF_ITERATE2;
- }
-
- req->bytes += len;
- req->exists = true;
-
- return 0;
-}
-
-static int coroutine_fn qemu_rbd_co_block_status(BlockDriverState *bs,
- bool want_zero, int64_t offset,
- int64_t bytes, int64_t *pnum,
- int64_t *map,
- BlockDriverState **file)
-{
- BDRVRBDState *s = bs->opaque;
- int status, r;
- RBDDiffIterateReq req = { .offs = offset };
- uint64_t features, flags;
-
- assert(offset + bytes <= s->image_size);
-
- /* default to all sectors allocated */
- status = BDRV_BLOCK_DATA | BDRV_BLOCK_OFFSET_VALID;
- *map = offset;
- *file = bs;
- *pnum = bytes;
-
- /* check if RBD image supports fast-diff */
- r = rbd_get_features(s->image, &features);
- if (r < 0) {
- return status;
- }
- if (!(features & RBD_FEATURE_FAST_DIFF)) {
- return status;
- }
-
- /* check if RBD fast-diff result is valid */
- r = rbd_get_flags(s->image, &flags);
- if (r < 0) {
- return status;
- }
- if (flags & RBD_FLAG_FAST_DIFF_INVALID) {
- return status;
- }
-
- r = rbd_diff_iterate2(s->image, NULL, offset, bytes, true, true,
- qemu_rbd_diff_iterate_cb, &req);
- if (r < 0 && r != QEMU_RBD_EXIT_DIFF_ITERATE2) {
- return status;
- }
- assert(req.bytes <= bytes);
- if (!req.exists) {
- if (r == 0) {
- /*
- * rbd_diff_iterate2 does not invoke callbacks for unallocated
- * areas. This here catches the case where no callback was
- * invoked at all (req.bytes == 0).
- */
- assert(req.bytes == 0);
- req.bytes = bytes;
- }
- status = BDRV_BLOCK_ZERO | BDRV_BLOCK_OFFSET_VALID;
- }
-
- *pnum = req.bytes;
- return status;
-}
-
static int64_t coroutine_fn qemu_rbd_co_getlength(BlockDriverState *bs)
{
BDRVRBDState *s = bs->opaque;
@@ -1800,7 +1689,6 @@ static BlockDriver bdrv_rbd = {
#ifdef LIBRBD_SUPPORTS_WRITE_ZEROES
.bdrv_co_pwrite_zeroes = qemu_rbd_co_pwrite_zeroes,
#endif
- .bdrv_co_block_status = qemu_rbd_co_block_status,
.bdrv_snapshot_create = qemu_rbd_snap_create,
.bdrv_snapshot_delete = qemu_rbd_snap_remove,

View File

@@ -0,0 +1,103 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Dietmar Maurer <dietmar@proxmox.com>
Date: Thu, 9 Jul 2020 12:53:08 +0200
Subject: [PATCH] PVE: fixup pbs backup, add compress and encrypt options
---
block/monitor/block-hmp-cmds.c | 4 +++-
pve-backup.c | 13 ++++++++++++-
qapi/block-core.json | 6 ++++++
3 files changed, 21 insertions(+), 2 deletions(-)
diff --git a/block/monitor/block-hmp-cmds.c b/block/monitor/block-hmp-cmds.c
index fdc85a5c0e..43aa87487b 100644
--- a/block/monitor/block-hmp-cmds.c
+++ b/block/monitor/block-hmp-cmds.c
@@ -1038,7 +1038,9 @@ void hmp_backup(Monitor *mon, const QDict *qdict)
false, NULL, // PBS fingerprint
false, NULL, // PBS backup-id
false, 0, // PBS backup-time
- false, false, // PBS incremental
+ false, false, // PBS use-dirty-bitmap
+ false, false, // PBS compress
+ false, false, // PBS encrypt
true, dir ? BACKUP_FORMAT_DIR : BACKUP_FORMAT_VMA,
false, NULL, false, NULL, !!devlist,
devlist, qdict_haskey(qdict, "speed"), speed, &error);
diff --git a/pve-backup.c b/pve-backup.c
index 1cd9d31d7c..bfb648d6b5 100644
--- a/pve-backup.c
+++ b/pve-backup.c
@@ -567,6 +567,10 @@ typedef struct QmpBackupTask {
const char *firewall_file;
bool has_devlist;
const char *devlist;
+ bool has_compress;
+ bool compress;
+ bool has_encrypt;
+ bool encrypt;
bool has_speed;
int64_t speed;
Error **errp;
@@ -690,6 +694,7 @@ static void coroutine_fn pvebackup_co_prepare(void *opaque)
bool use_dirty_bitmap = task->has_use_dirty_bitmap && task->use_dirty_bitmap;
+
char *pbs_err = NULL;
pbs = proxmox_backup_new(
task->backup_file,
@@ -699,8 +704,10 @@ static void coroutine_fn pvebackup_co_prepare(void *opaque)
task->has_password ? task->password : NULL,
task->has_keyfile ? task->keyfile : NULL,
task->has_key_password ? task->key_password : NULL,
+ task->has_compress ? task->compress : true,
+ task->has_encrypt ? task->encrypt : task->has_keyfile,
task->has_fingerprint ? task->fingerprint : NULL,
- &pbs_err);
+ &pbs_err);
if (!pbs) {
error_set(task->errp, ERROR_CLASS_GENERIC_ERROR,
@@ -939,6 +946,8 @@ UuidInfo *qmp_backup(
bool has_backup_id, const char *backup_id,
bool has_backup_time, int64_t backup_time,
bool has_use_dirty_bitmap, bool use_dirty_bitmap,
+ bool has_compress, bool compress,
+ bool has_encrypt, bool encrypt,
bool has_format, BackupFormat format,
bool has_config_file, const char *config_file,
bool has_firewall_file, const char *firewall_file,
@@ -967,6 +976,8 @@ UuidInfo *qmp_backup(
.firewall_file = firewall_file,
.has_devlist = has_devlist,
.devlist = devlist,
+ .has_compress = has_compress,
+ .has_encrypt = has_encrypt,
.has_speed = has_speed,
.speed = speed,
.errp = errp,
diff --git a/qapi/block-core.json b/qapi/block-core.json
index e00e577c6c..a177fea6cd 100644
--- a/qapi/block-core.json
+++ b/qapi/block-core.json
@@ -832,6 +832,10 @@
#
# @use-dirty-bitmap: use dirty bitmap to detect incremental changes since last job (optional for format 'pbs')
#
+# @compress: use compression (optional for format 'pbs', defaults to true)
+#
+# @encrypt: use encryption ((optional for format 'pbs', defaults to true if there is a keyfile)
+#
# Returns: the uuid of the backup job
#
##
@@ -843,6 +847,8 @@
'*backup-id': 'str',
'*backup-time': 'int',
'*use-dirty-bitmap': 'bool',
+ '*compress': 'bool',
+ '*encrypt': 'bool',
'*format': 'BackupFormat',
'*config-file': 'str',
'*firewall-file': 'str',

View File

@@ -1,43 +0,0 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Fiona Ebner <f.ebner@proxmox.com>
Date: Tue, 26 Mar 2024 14:57:51 +0100
Subject: [PATCH] alloc-track: error out when auto-remove is not set
Since replacing the node now happens in the stream job, where the
option cannot be read from (it's internal to the driver), it will
always be treated as on.
qemu-server will always set it, make sure to have other users notice
the change (should they even exist). The option can be fully dropped
in the future while adding a version guard in qemu-server.
Signed-off-by: Fiona Ebner <f.ebner@proxmox.com>
---
block/alloc-track.c | 7 +++++--
1 file changed, 5 insertions(+), 2 deletions(-)
diff --git a/block/alloc-track.c b/block/alloc-track.c
index b9f8ea9137..f3ed2935c4 100644
--- a/block/alloc-track.c
+++ b/block/alloc-track.c
@@ -34,7 +34,6 @@ typedef struct {
BdrvDirtyBitmap *bitmap;
uint64_t granularity;
DropState drop_state;
- bool auto_remove;
} BDRVAllocTrackState;
static QemuOptsList runtime_opts = {
@@ -86,7 +85,11 @@ static int track_open(BlockDriverState *bs, QDict *options, int flags,
goto fail;
}
- s->auto_remove = qemu_opt_get_bool(opts, TRACK_OPT_AUTO_REMOVE, false);
+ if (!qemu_opt_get_bool(opts, TRACK_OPT_AUTO_REMOVE, false)) {
+ error_setg(errp, "alloc-track: requires auto-remove option to be set to on");
+ ret = -EINVAL;
+ goto fail;
+ }
/* open the target (write) node, backing will be attached by block layer */
file = bdrv_open_child(NULL, options, "file", bs, &child_of_bds,

View File

@@ -6,41 +6,37 @@ Subject: [PATCH] PVE: Add PBS block driver to map backup archives into VMs
Signed-off-by: Stefan Reiter <s.reiter@proxmox.com>
[error cleanups, file_open implementation]
Signed-off-by: Dietmar Maurer <dietmar@proxmox.com>
Signed-off-by: Thomas Lamprecht <t.lamprecht@proxmox.com>
[WB: add namespace support]
Signed-off-by: Wolfgang Bumiller <w.bumiller@proxmox.com>
[FE: adapt to changed function signatures
make pbs_co_preadv return values consistent with QEMU
getlength is now a coroutine function]
Signed-off-by: Fiona Ebner <f.ebner@proxmox.com>
---
block/meson.build | 2 +
block/pbs.c | 307 +++++++++++++++++++++++++++++++++++++++++++
meson.build | 2 +-
qapi/block-core.json | 29 ++++
qapi/pragma.json | 1 +
5 files changed, 340 insertions(+), 1 deletion(-)
block/Makefile.objs | 2 +
block/pbs.c | 271 +++++++++++++++++++++++++++++++++++++++++++
configure | 10 ++
qapi/block-core.json | 14 ++-
4 files changed, 296 insertions(+), 1 deletion(-)
create mode 100644 block/pbs.c
diff --git a/block/meson.build b/block/meson.build
index 6bba803f94..1945e04eeb 100644
--- a/block/meson.build
+++ b/block/meson.build
@@ -49,6 +49,8 @@ block_ss.add(files(
'../pve-backup.c',
), libproxmox_backup_qemu)
diff --git a/block/Makefile.objs b/block/Makefile.objs
index 9ea0477d0b..28fb3b7f7c 100644
--- a/block/Makefile.objs
+++ b/block/Makefile.objs
@@ -5,6 +5,7 @@ block-obj-$(CONFIG_CLOOP) += cloop.o
block-obj-$(CONFIG_BOCHS) += bochs.o
block-obj-$(CONFIG_VVFAT) += vvfat.o
block-obj-$(CONFIG_DMG) += dmg.o
+block-obj-$(CONFIG_PBS_BDRV) += pbs.o
+block_ss.add(files('pbs.c'), libproxmox_backup_qemu)
+
system_ss.add(when: 'CONFIG_TCG', if_true: files('blkreplay.c'))
system_ss.add(files('block-ram-registrar.c'))
block-obj-y += qcow2.o qcow2-refcount.o qcow2-cluster.o qcow2-snapshot.o qcow2-cache.o qcow2-bitmap.o qcow2-threads.o
block-obj-$(CONFIG_QED) += qed.o qed-l2-cache.o qed-table.o qed-cluster.o
@@ -75,3 +76,4 @@ io_uring.o-cflags := $(LINUX_IO_URING_CFLAGS)
io_uring.o-libs := $(LINUX_IO_URING_LIBS)
parallels.o-cflags := $(LIBXML2_CFLAGS)
parallels.o-libs := $(LIBXML2_LIBS)
+pbs.o-libs := -lproxmox_backup_qemu
diff --git a/block/pbs.c b/block/pbs.c
new file mode 100644
index 0000000000..dd72356bd3
index 0000000000..1481a2bfd1
--- /dev/null
+++ b/block/pbs.c
@@ -0,0 +1,307 @@
@@ -0,0 +1,271 @@
+/*
+ * Proxmox Backup Server read-only block driver
+ */
@@ -53,12 +49,10 @@ index 0000000000..dd72356bd3
+#include "qemu/option.h"
+#include "qemu/cutils.h"
+#include "block/block_int.h"
+#include "block/block-io.h"
+
+#include <proxmox-backup-qemu.h>
+
+#define PBS_OPT_REPOSITORY "repository"
+#define PBS_OPT_NAMESPACE "namespace"
+#define PBS_OPT_SNAPSHOT "snapshot"
+#define PBS_OPT_ARCHIVE "archive"
+#define PBS_OPT_KEYFILE "keyfile"
@@ -72,7 +66,6 @@ index 0000000000..dd72356bd3
+ int64_t length;
+
+ char *repository;
+ char *namespace;
+ char *snapshot;
+ char *archive;
+} BDRVPBSState;
@@ -87,11 +80,6 @@ index 0000000000..dd72356bd3
+ .help = "The server address and repository to connect to.",
+ },
+ {
+ .name = PBS_OPT_NAMESPACE,
+ .type = QEMU_OPT_STRING,
+ .help = "Optional: The snapshot's namespace.",
+ },
+ {
+ .name = PBS_OPT_SNAPSHOT,
+ .type = QEMU_OPT_STRING,
+ .help = "The snapshot to read.",
@@ -127,7 +115,7 @@ index 0000000000..dd72356bd3
+
+
+// filename format:
+// pbs:repository=<repo>,namespace=<ns>,snapshot=<snap>,password=<pw>,key_password=<kpw>,fingerprint=<fp>,archive=<archive>
+// pbs:repository=<repo>,snapshot=<snap>,password=<pw>,key_password=<kpw>,fingerprint=<fp>,archive=<archive>
+static void pbs_parse_filename(const char *filename, QDict *options,
+ Error **errp)
+{
@@ -163,7 +151,6 @@ index 0000000000..dd72356bd3
+ s->archive = g_strdup(qemu_opt_get(opts, PBS_OPT_ARCHIVE));
+ const char *keyfile = qemu_opt_get(opts, PBS_OPT_KEYFILE);
+ const char *password = qemu_opt_get(opts, PBS_OPT_PASSWORD);
+ const char *namespace = qemu_opt_get(opts, PBS_OPT_NAMESPACE);
+ const char *fingerprint = qemu_opt_get(opts, PBS_OPT_FINGERPRINT);
+ const char *key_password = qemu_opt_get(opts, PBS_OPT_ENCRYPTION_PASSWORD);
+
@@ -176,12 +163,9 @@ index 0000000000..dd72356bd3
+ if (!key_password) {
+ key_password = getenv("PBS_ENCRYPTION_PASSWORD");
+ }
+ if (namespace) {
+ s->namespace = g_strdup(namespace);
+ }
+
+ /* connect to PBS server in read mode */
+ s->conn = proxmox_restore_new_ns(s->repository, s->snapshot, s->namespace, password,
+ s->conn = proxmox_restore_new(s->repository, s->snapshot, password,
+ keyfile, key_password, fingerprint, &pbs_error);
+
+ /* invalidates qemu_opt_get char pointers from above */
@@ -226,14 +210,12 @@ index 0000000000..dd72356bd3
+static void pbs_close(BlockDriverState *bs) {
+ BDRVPBSState *s = bs->opaque;
+ g_free(s->repository);
+ g_free(s->namespace);
+ g_free(s->snapshot);
+ g_free(s->archive);
+ proxmox_restore_disconnect(s->conn);
+}
+
+static coroutine_fn int64_t GRAPH_RDLOCK
+pbs_co_getlength(BlockDriverState *bs)
+static int64_t pbs_getlength(BlockDriverState *bs)
+{
+ BDRVPBSState *s = bs->opaque;
+ return s->length;
@@ -250,35 +232,21 @@ index 0000000000..dd72356bd3
+ aio_co_schedule(rcb->ctx, rcb->co);
+}
+
+static coroutine_fn int GRAPH_RDLOCK
+pbs_co_preadv(BlockDriverState *bs, int64_t offset, int64_t bytes,
+ QEMUIOVector *qiov, BdrvRequestFlags flags)
+static coroutine_fn int pbs_co_preadv(BlockDriverState *bs,
+ uint64_t offset, uint64_t bytes,
+ QEMUIOVector *qiov, int flags)
+{
+ BDRVPBSState *s = bs->opaque;
+ int ret;
+ char *pbs_error = NULL;
+ uint8_t *buf;
+ bool inline_buf = true;
+
+ /* for single-buffer IO vectors we can fast-path the write directly to it */
+ if (qiov->niov == 1 && qiov->iov->iov_len >= bytes) {
+ buf = qiov->iov->iov_base;
+ } else {
+ inline_buf = false;
+ buf = g_malloc(bytes);
+ }
+
+ if (offset < 0 || bytes < 0) {
+ fprintf(stderr, "unexpected negative 'offset' or 'bytes' value!\n");
+ return -EIO;
+ }
+ uint8_t *buf = malloc(bytes);
+
+ ReadCallbackData rcb = {
+ .co = qemu_coroutine_self(),
+ .ctx = bdrv_get_aio_context(bs),
+ .ctx = qemu_get_current_aio_context(),
+ };
+
+ proxmox_restore_read_image_at_async(s->conn, s->aid, buf, (uint64_t)offset, (uint64_t)bytes,
+ proxmox_restore_read_image_at_async(s->conn, s->aid, buf, offset, bytes,
+ read_callback, (void *) &rcb, &ret, &pbs_error);
+
+ qemu_coroutine_yield();
@@ -289,34 +257,26 @@ index 0000000000..dd72356bd3
+ return -EIO;
+ }
+
+ if (!inline_buf) {
+ qemu_iovec_from_buf(qiov, 0, buf, bytes);
+ g_free(buf);
+ }
+ qemu_iovec_from_buf(qiov, 0, buf, bytes);
+ free(buf);
+
+ return 0;
+ return ret;
+}
+
+static coroutine_fn int GRAPH_RDLOCK
+pbs_co_pwritev(BlockDriverState *bs, int64_t offset, int64_t bytes,
+ QEMUIOVector *qiov, BdrvRequestFlags flags)
+static coroutine_fn int pbs_co_pwritev(BlockDriverState *bs,
+ uint64_t offset, uint64_t bytes,
+ QEMUIOVector *qiov, int flags)
+{
+ fprintf(stderr, "pbs-bdrv: cannot write to backup file, make sure "
+ "any attached disk devices are set to read-only!\n");
+ return -EPERM;
+}
+
+static void GRAPH_RDLOCK
+pbs_refresh_filename(BlockDriverState *bs)
+static void pbs_refresh_filename(BlockDriverState *bs)
+{
+ BDRVPBSState *s = bs->opaque;
+ if (s->namespace) {
+ snprintf(bs->exact_filename, sizeof(bs->exact_filename), "%s/%s:%s(%s)",
+ s->repository, s->namespace, s->snapshot, s->archive);
+ } else {
+ snprintf(bs->exact_filename, sizeof(bs->exact_filename), "%s/%s(%s)",
+ s->repository, s->snapshot, s->archive);
+ }
+ snprintf(bs->exact_filename, sizeof(bs->exact_filename), "%s/%s(%s)",
+ s->repository, s->snapshot, s->archive);
+}
+
+static const char *const pbs_strong_runtime_opts[] = {
@@ -333,7 +293,7 @@ index 0000000000..dd72356bd3
+ .bdrv_file_open = pbs_file_open,
+ .bdrv_open = pbs_open,
+ .bdrv_close = pbs_close,
+ .bdrv_co_getlength = pbs_co_getlength,
+ .bdrv_getlength = pbs_getlength,
+
+ .bdrv_co_preadv = pbs_co_preadv,
+ .bdrv_co_pwritev = pbs_co_pwritev,
@@ -348,32 +308,69 @@ index 0000000000..dd72356bd3
+}
+
+block_init(bdrv_pbs_init);
diff --git a/meson.build b/meson.build
index 6de51c34cb..3bc039f60f 100644
--- a/meson.build
+++ b/meson.build
@@ -4477,7 +4477,7 @@ summary_info += {'bzip2 support': libbzip2}
summary_info += {'lzfse support': liblzfse}
summary_info += {'zstd support': zstd}
summary_info += {'NUMA host support': numa}
-summary_info += {'capstone': capstone}
+summary_info += {'PBS bdrv support': config_host.has_key('CONFIG_PBS_BDRV')}
summary_info += {'libpmem support': libpmem}
summary_info += {'libdaxctl support': libdaxctl}
summary_info += {'libudev': libudev}
diff --git a/configure b/configure
index 2acc4d1465..3fc80d0c2c 100755
--- a/configure
+++ b/configure
@@ -510,6 +510,7 @@ vvfat="yes"
qed="yes"
parallels="yes"
sheepdog="yes"
+pbs_bdrv="yes"
libxml2=""
debug_mutex="no"
libpmem=""
@@ -1576,6 +1577,10 @@ for opt do
;;
--enable-sheepdog) sheepdog="yes"
;;
+ --disable-pbs-bdrv) pbs_bdrv="no"
+ ;;
+ --enable-pbs-bdrv) pbs_bdrv="yes"
+ ;;
--disable-vhost-user) vhost_user="no"
;;
--enable-vhost-user) vhost_user="yes"
@@ -1936,6 +1941,7 @@ disabled with --disable-FEATURE, default is enabled if available:
qed qed image format support
parallels parallels image format support
sheepdog sheepdog block driver support
+ pbs-bdrv Proxmox backup server read-only block driver support
crypto-afalg Linux AF_ALG crypto backend driver
capstone capstone disassembler support
debug-mutex mutex debugging support
@@ -7009,6 +7015,7 @@ echo "vvfat support $vvfat"
echo "qed support $qed"
echo "parallels support $parallels"
echo "sheepdog support $sheepdog"
+echo "pbs-bdrv support $pbs_bdrv"
echo "capstone $capstone"
echo "libpmem support $libpmem"
echo "libdaxctl support $libdaxctl"
@@ -7885,6 +7892,9 @@ fi
if test "$sheepdog" = "yes" ; then
echo "CONFIG_SHEEPDOG=y" >> $config_host_mak
fi
+if test "$pbs_bdrv" = "yes" ; then
+ echo "CONFIG_PBS_BDRV=y" >> $config_host_mak
+fi
if test "$pty_h" = "yes" ; then
echo "HAVE_PTY_H=y" >> $config_host_mak
fi
diff --git a/qapi/block-core.json b/qapi/block-core.json
index e49c7b5bc9..fc32ff9957 100644
index a177fea6cd..f782c2cf96 100644
--- a/qapi/block-core.json
+++ b/qapi/block-core.json
@@ -3457,6 +3457,7 @@
'parallels', 'preallocate', 'qcow', 'qcow2', 'qed', 'quorum',
'raw', 'rbd',
{ 'name': 'replication', 'if': 'CONFIG_REPLICATION' },
+ 'pbs',
'ssh', 'throttle', 'vdi', 'vhdx',
{ 'name': 'virtio-blk-vfio-pci', 'if': 'CONFIG_BLKIO' },
{ 'name': 'virtio-blk-vhost-user', 'if': 'CONFIG_BLKIO' },
@@ -3543,6 +3544,33 @@
@@ -2951,7 +2951,7 @@
'luks', 'nbd', 'nfs', 'null-aio', 'null-co', 'nvme', 'parallels',
'qcow', 'qcow2', 'qed', 'quorum', 'raw', 'rbd',
{ 'name': 'replication', 'if': 'defined(CONFIG_REPLICATION)' },
- 'sheepdog',
+ 'sheepdog', 'pbs',
'ssh', 'throttle', 'vdi', 'vhdx', 'vmdk', 'vpc', 'vvfat' ] }
##
@@ -3015,6 +3015,17 @@
{ 'struct': 'BlockdevOptionsNull',
'data': { '*size': 'int', '*latency-ns': 'uint64', '*read-zeroes': 'bool' } }
@@ -382,48 +379,20 @@ index e49c7b5bc9..fc32ff9957 100644
+#
+# Driver specific block device options for the PBS backend.
+#
+# @repository: Proxmox Backup Server repository.
+#
+# @snapshot: backup snapshots ID.
+#
+# @archive: archive name.
+#
+# @keyfile: keyfile to use for encryption.
+#
+# @password: password to use for connection.
+#
+# @fingerprint: backup server fingerprint.
+#
+# @key_password: password to unlock key.
+#
+# @namespace: namespace where backup snapshot lives.
+#
+##
+{ 'struct': 'BlockdevOptionsPbs',
+ 'data': { 'repository': 'str', 'snapshot': 'str', 'archive': 'str',
+ '*keyfile': 'str', '*password': 'str', '*fingerprint': 'str',
+ '*key_password': 'str', '*namespace': 'str' } }
+ '*key_password': 'str' } }
+
##
# @BlockdevOptionsNVMe:
#
@@ -4977,6 +5005,7 @@
@@ -4121,6 +4132,7 @@
'nfs': 'BlockdevOptionsNfs',
'null-aio': 'BlockdevOptionsNull',
'null-co': 'BlockdevOptionsNull',
+ 'pbs': 'BlockdevOptionsPbs',
'nvme': 'BlockdevOptionsNVMe',
'nvme-io_uring': { 'type': 'BlockdevOptionsNvmeIoUring',
'if': 'CONFIG_BLKIO' },
diff --git a/qapi/pragma.json b/qapi/pragma.json
index be8fa304c5..7ff46bd128 100644
--- a/qapi/pragma.json
+++ b/qapi/pragma.json
@@ -100,6 +100,7 @@
'BlockInfo', # query-block
'BlockdevAioOptions', # blockdev-add, -blockdev
'BlockdevDriver', # blockdev-add, query-blockstats, ...
+ 'BlockdevOptionsPbs', # for PBS backwards compat
'BlockdevVmdkAdapterType', # blockdev-create (to match VMDK spec)
'BlockdevVmdkSubformat', # blockdev-create (to match VMDK spec)
'ColoCompareProperties', # object_add, -object
'parallels': 'BlockdevOptionsGenericFormat',
'qcow2': 'BlockdevOptionsQcow2',

View File

@@ -1,84 +0,0 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Fiona Ebner <f.ebner@proxmox.com>
Date: Wed, 27 Mar 2024 11:15:39 +0100
Subject: [PATCH] alloc-track: avoid seemingly superfluous child permission
update
Doesn't seem necessary nowadays (maybe after commit "alloc-track: fix
deadlock during drop" where the dropping is not rescheduled and delayed
anymore or some upstream change). Should there really be some issue,
instead of having a drop state, this could also be just based off the
fact whether there is still a backing child.
Dumping the cumulative (shared) permissions for the BDS with a debug
print yields the same values after this patch and with QEMU 8.1,
namely 3 and 5.
Signed-off-by: Fiona Ebner <f.ebner@proxmox.com>
---
block/alloc-track.c | 26 --------------------------
1 file changed, 26 deletions(-)
diff --git a/block/alloc-track.c b/block/alloc-track.c
index f3ed2935c4..29138dcc49 100644
--- a/block/alloc-track.c
+++ b/block/alloc-track.c
@@ -25,15 +25,9 @@
#define TRACK_OPT_AUTO_REMOVE "auto-remove"
-typedef enum DropState {
- DropNone,
- DropInProgress,
-} DropState;
-
typedef struct {
BdrvDirtyBitmap *bitmap;
uint64_t granularity;
- DropState drop_state;
} BDRVAllocTrackState;
static QemuOptsList runtime_opts = {
@@ -137,8 +131,6 @@ static int track_open(BlockDriverState *bs, QDict *options, int flags,
goto fail;
}
- s->drop_state = DropNone;
-
fail:
if (ret < 0) {
bdrv_graph_wrlock();
@@ -289,18 +281,8 @@ track_child_perm(BlockDriverState *bs, BdrvChild *c, BdrvChildRole role,
BlockReopenQueue *reopen_queue, uint64_t perm, uint64_t shared,
uint64_t *nperm, uint64_t *nshared)
{
- BDRVAllocTrackState *s = bs->opaque;
-
*nshared = BLK_PERM_ALL;
- /* in case we're currently dropping ourselves, claim to not use any
- * permissions at all - which is fine, since from this point on we will
- * never issue a read or write anymore */
- if (s->drop_state == DropInProgress) {
- *nperm = 0;
- return;
- }
-
if (role & BDRV_CHILD_DATA) {
*nperm = perm & DEFAULT_PERM_PASSTHROUGH;
} else {
@@ -326,14 +308,6 @@ track_co_change_backing_file(BlockDriverState *bs, const char *backing_file,
* kinda fits better, but in the long-term, a special parameter would be
* nice (or done via qemu-server via upcoming blockdev-replace QMP command).
*/
- if (backing_file == NULL) {
- BDRVAllocTrackState *s = bs->opaque;
- bdrv_drained_begin(bs);
- s->drop_state = DropInProgress;
- bdrv_child_refresh_perms(bs, bs->file, &error_abort);
- bdrv_drained_end(bs);
- }
-
return 0;
}

View File

@@ -0,0 +1,69 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Stefan Reiter <s.reiter@proxmox.com>
Date: Wed, 8 Jul 2020 11:57:53 +0200
Subject: [PATCH] PVE: add query_proxmox_support QMP command
Generic interface for future use, currently used for PBS dirty-bitmap
backup support.
Signed-off-by: Stefan Reiter <s.reiter@proxmox.com>
Signed-off-by: Thomas Lamprecht <t.lamprecht@proxmox.com>
[PVE: query-proxmox-support: include library version]
Signed-off-by: Stefan Reiter <s.reiter@proxmox.com>
---
pve-backup.c | 8 ++++++++
qapi/block-core.json | 25 +++++++++++++++++++++++++
2 files changed, 33 insertions(+)
diff --git a/pve-backup.c b/pve-backup.c
index bfb648d6b5..6bf138cfc6 100644
--- a/pve-backup.c
+++ b/pve-backup.c
@@ -1051,3 +1051,11 @@ BackupStatus *qmp_query_backup(Error **errp)
return info;
}
+
+ProxmoxSupportStatus *qmp_query_proxmox_support(Error **errp)
+{
+ ProxmoxSupportStatus *ret = g_malloc0(sizeof(*ret));
+ ret->pbs_library_version = g_strdup(proxmox_backup_qemu_version());
+ ret->pbs_dirty_bitmap = true;
+ return ret;
+}
diff --git a/qapi/block-core.json b/qapi/block-core.json
index f782c2cf96..1ed5987c88 100644
--- a/qapi/block-core.json
+++ b/qapi/block-core.json
@@ -877,6 +877,31 @@
##
{ 'command': 'backup-cancel' }
+##
+# @ProxmoxSupportStatus:
+#
+# Contains info about supported features added by Proxmox.
+#
+# @pbs-dirty-bitmap: True if dirty-bitmap-incremental backups to PBS are
+# supported.
+#
+# @pbs-library-version: Running version of libproxmox-backup-qemu0 library.
+#
+##
+{ 'struct': 'ProxmoxSupportStatus',
+ 'data': { 'pbs-dirty-bitmap': 'bool',
+ 'pbs-library-version': 'str' } }
+
+##
+# @query-proxmox-support:
+#
+# Returns information about supported features added by Proxmox.
+#
+# Returns: @ProxmoxSupportStatus
+#
+##
+{ 'command': 'query-proxmox-support', 'returns': 'ProxmoxSupportStatus' }
+
##
# @BlockDeviceTimedStats:
#

View File

@@ -1,55 +0,0 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Vladimir Sementsov-Ogievskiy <vsementsov@yandex-team.ru>
Date: Thu, 11 Apr 2024 11:29:22 +0200
Subject: [PATCH] block/copy-before-write: fix permission
In case when source node does not have any parents, the condition still
works as required: backup job do create the parent by
block_job_create -> block_job_add_bdrv -> bdrv_root_attach_child
Still, in this case checking @perm variable doesn't work, as backup job
creates the root blk with empty permissions (as it rely on CBW filter
to require correct permissions and don't want to create extra
conflicts).
So, we should not check @perm.
The hack may be dropped entirely when transactional insertion of
filter (when we don't try to recalculate permissions in intermediate
state, when filter does conflict with original parent of the source
node) merged (old big series
"[PATCH v5 00/45] Transactional block-graph modifying API"[1] and it's
current in-flight part is "[PATCH v8 0/7] blockdev-replace"[2])
[1] https://patchew.org/QEMU/20220330212902.590099-1-vsementsov@openvz.org/
[2] https://patchew.org/QEMU/20231017184444.932733-1-vsementsov@yandex-team.ru/
Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@yandex-team.ru>
Signed-off-by: Fiona Ebner <f.ebner@proxmox.com>
Signed-off-by: Thomas Lamprecht <t.lamprecht@proxmox.com>
---
block/copy-before-write.c | 10 +++++++---
1 file changed, 7 insertions(+), 3 deletions(-)
diff --git a/block/copy-before-write.c b/block/copy-before-write.c
index 026fa9840f..5a9456d426 100644
--- a/block/copy-before-write.c
+++ b/block/copy-before-write.c
@@ -364,9 +364,13 @@ cbw_child_perm(BlockDriverState *bs, BdrvChild *c, BdrvChildRole role,
perm, shared, nperm, nshared);
if (!QLIST_EMPTY(&bs->parents)) {
- if (perm & BLK_PERM_WRITE) {
- *nperm = *nperm | BLK_PERM_CONSISTENT_READ;
- }
+ /*
+ * Note, that source child may be shared with backup job. Backup job
+ * does create own blk parent on copy-before-write node, so this
+ * works even if source node does not have any parents before backup
+ * start
+ */
+ *nperm = *nperm | BLK_PERM_CONSISTENT_READ;
*nshared &= ~(BLK_PERM_WRITE | BLK_PERM_RESIZE);
}
}

View File

@@ -1,48 +0,0 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Vladimir Sementsov-Ogievskiy <vsementsov@yandex-team.ru>
Date: Thu, 11 Apr 2024 11:29:23 +0200
Subject: [PATCH] block/copy-before-write: support unligned snapshot-discard
First thing that crashes on unligned access here is
bdrv_reset_dirty_bitmap(). Correct way is to align-down the
snapshot-discard request.
Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@yandex-team.ru>
Signed-off-by: Fiona Ebner <f.ebner@proxmox.com>
Signed-off-by: Thomas Lamprecht <t.lamprecht@proxmox.com>
---
block/copy-before-write.c | 16 +++++++++++++---
1 file changed, 13 insertions(+), 3 deletions(-)
diff --git a/block/copy-before-write.c b/block/copy-before-write.c
index 5a9456d426..c0e70669a2 100644
--- a/block/copy-before-write.c
+++ b/block/copy-before-write.c
@@ -325,14 +325,24 @@ static int coroutine_fn GRAPH_RDLOCK
cbw_co_pdiscard_snapshot(BlockDriverState *bs, int64_t offset, int64_t bytes)
{
BDRVCopyBeforeWriteState *s = bs->opaque;
+ uint32_t cluster_size = block_copy_cluster_size(s->bcs);
+ int64_t aligned_offset = QEMU_ALIGN_UP(offset, cluster_size);
+ int64_t aligned_end = QEMU_ALIGN_DOWN(offset + bytes, cluster_size);
+ int64_t aligned_bytes;
+
+ if (aligned_end <= aligned_offset) {
+ return 0;
+ }
+ aligned_bytes = aligned_end - aligned_offset;
WITH_QEMU_LOCK_GUARD(&s->lock) {
- bdrv_reset_dirty_bitmap(s->access_bitmap, offset, bytes);
+ bdrv_reset_dirty_bitmap(s->access_bitmap, aligned_offset,
+ aligned_bytes);
}
- block_copy_reset(s->bcs, offset, bytes);
+ block_copy_reset(s->bcs, aligned_offset, aligned_bytes);
- return bdrv_co_pdiscard(s->target, offset, bytes);
+ return bdrv_co_pdiscard(s->target, aligned_offset, aligned_bytes);
}
static void GRAPH_RDLOCK cbw_refresh_filename(BlockDriverState *bs)

View File

@@ -0,0 +1,43 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Wolfgang Bumiller <w.bumiller@proxmox.com>
Date: Fri, 10 Jul 2020 13:22:35 +0200
Subject: [PATCH] pbs: fix missing crypt and compress parameters
Signed-off-by: Wolfgang Bumiller <w.bumiller@proxmox.com>
---
pve-backup.c | 8 ++++++--
1 file changed, 6 insertions(+), 2 deletions(-)
diff --git a/pve-backup.c b/pve-backup.c
index 6bf138cfc6..cd3a132d8b 100644
--- a/pve-backup.c
+++ b/pve-backup.c
@@ -958,6 +958,8 @@ UuidInfo *qmp_backup(
.backup_file = backup_file,
.has_password = has_password,
.password = password,
+ .has_keyfile = has_keyfile,
+ .keyfile = keyfile,
.has_key_password = has_key_password,
.key_password = key_password,
.has_fingerprint = has_fingerprint,
@@ -968,6 +970,10 @@ UuidInfo *qmp_backup(
.backup_time = backup_time,
.has_use_dirty_bitmap = has_use_dirty_bitmap,
.use_dirty_bitmap = use_dirty_bitmap,
+ .has_compress = has_compress,
+ .compress = compress,
+ .has_encrypt = has_encrypt,
+ .encrypt = encrypt,
.has_format = has_format,
.format = format,
.has_config_file = has_config_file,
@@ -976,8 +982,6 @@ UuidInfo *qmp_backup(
.firewall_file = firewall_file,
.has_devlist = has_devlist,
.devlist = devlist,
- .has_compress = has_compress,
- .has_encrypt = has_encrypt,
.has_speed = has_speed,
.speed = speed,
.errp = errp,

View File

@@ -0,0 +1,76 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Stefan Reiter <s.reiter@proxmox.com>
Date: Wed, 19 Aug 2020 12:33:17 +0200
Subject: [PATCH] PVE: handle PBS write callback with big blocks correctly
Under certain conditions QEMU will push more than the given blocksize
into the callback at once. Handle it like VMA does, by iterating the
data until all is written.
The block size is stored per backup device to be used in the callback.
This avoids relying on PROXMOX_BACKUP_DEFAULT_CHUNK_SIZE, in case it is
made configurable in the future.
Signed-off-by: Stefan Reiter <s.reiter@proxmox.com>
---
pve-backup.c | 30 ++++++++++++++++++++++--------
1 file changed, 22 insertions(+), 8 deletions(-)
diff --git a/pve-backup.c b/pve-backup.c
index cd3a132d8b..f14273645a 100644
--- a/pve-backup.c
+++ b/pve-backup.c
@@ -67,6 +67,7 @@ opts_init(pvebackup_init);
typedef struct PVEBackupDevInfo {
BlockDriverState *bs;
size_t size;
+ uint64_t block_size;
uint8_t dev_id;
bool completed;
char targetfile[PATH_MAX];
@@ -147,17 +148,28 @@ pvebackup_co_dump_pbs_cb(
return -1;
}
- pbs_res = proxmox_backup_co_write_data(backup_state.pbs, di->dev_id, buf, start, size, &local_err);
- qemu_co_mutex_unlock(&backup_state.dump_callback_mutex);
+ uint64_t transferred = 0;
+ uint64_t reused = 0;
+ while (transferred < size) {
+ uint64_t left = size - transferred;
+ uint64_t to_transfer = left < di->block_size ? left : di->block_size;
- if (pbs_res < 0) {
- pvebackup_propagate_error(local_err);
- return pbs_res;
- } else {
- size_t reused = (pbs_res == 0) ? size : 0;
- pvebackup_add_transfered_bytes(size, !buf ? size : 0, reused);
+ pbs_res = proxmox_backup_co_write_data(backup_state.pbs, di->dev_id,
+ buf ? buf + transferred : NULL, start + transferred, to_transfer, &local_err);
+ transferred += to_transfer;
+
+ if (pbs_res < 0) {
+ pvebackup_propagate_error(local_err);
+ qemu_co_mutex_unlock(&backup_state.dump_callback_mutex);
+ return pbs_res;
+ }
+
+ reused += pbs_res == 0 ? to_transfer : 0;
}
+ qemu_co_mutex_unlock(&backup_state.dump_callback_mutex);
+ pvebackup_add_transfered_bytes(size, !buf ? size : 0, reused);
+
return size;
}
@@ -726,6 +738,8 @@ static void coroutine_fn pvebackup_co_prepare(void *opaque)
PVEBackupDevInfo *di = (PVEBackupDevInfo *)l->data;
l = g_list_next(l);
+ di->block_size = dump_cb_block_size;
+
const char *devname = bdrv_get_device_name(di->bs);
BdrvDirtyBitmap *bitmap = bdrv_find_dirty_bitmap(di->bs, PBS_BITMAP_NAME);

View File

@@ -1,373 +0,0 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Vladimir Sementsov-Ogievskiy <vsementsov@yandex-team.ru>
Date: Thu, 11 Apr 2024 11:29:24 +0200
Subject: [PATCH] block/copy-before-write: create block_copy bitmap in filter
node
Currently block_copy creates copy_bitmap in source node. But that is in
bad relation with .independent_close=true of copy-before-write filter:
source node may be detached and removed before .bdrv_close() handler
called, which should call block_copy_state_free(), which in turn should
remove copy_bitmap.
That's all not ideal: it would be better if internal bitmap of
block-copy object is not attached to any node. But that is not possible
now.
The simplest solution is just create copy_bitmap in filter node, where
anyway two other bitmaps are created.
Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@yandex-team.ru>
Signed-off-by: Fiona Ebner <f.ebner@proxmox.com>
Signed-off-by: Thomas Lamprecht <t.lamprecht@proxmox.com>
---
block/block-copy.c | 3 +-
block/copy-before-write.c | 2 +-
include/block/block-copy.h | 1 +
tests/qemu-iotests/257.out | 112 ++++++++++++++++++-------------------
4 files changed, 60 insertions(+), 58 deletions(-)
diff --git a/block/block-copy.c b/block/block-copy.c
index 9ee3dd7ef5..8fca2c3698 100644
--- a/block/block-copy.c
+++ b/block/block-copy.c
@@ -351,6 +351,7 @@ static int64_t block_copy_calculate_cluster_size(BlockDriverState *target,
}
BlockCopyState *block_copy_state_new(BdrvChild *source, BdrvChild *target,
+ BlockDriverState *copy_bitmap_bs,
const BdrvDirtyBitmap *bitmap,
Error **errp)
{
@@ -367,7 +368,7 @@ BlockCopyState *block_copy_state_new(BdrvChild *source, BdrvChild *target,
return NULL;
}
- copy_bitmap = bdrv_create_dirty_bitmap(source->bs, cluster_size, NULL,
+ copy_bitmap = bdrv_create_dirty_bitmap(copy_bitmap_bs, cluster_size, NULL,
errp);
if (!copy_bitmap) {
return NULL;
diff --git a/block/copy-before-write.c b/block/copy-before-write.c
index c0e70669a2..94db31512d 100644
--- a/block/copy-before-write.c
+++ b/block/copy-before-write.c
@@ -468,7 +468,7 @@ static int cbw_open(BlockDriverState *bs, QDict *options, int flags,
((BDRV_REQ_FUA | BDRV_REQ_MAY_UNMAP | BDRV_REQ_NO_FALLBACK) &
bs->file->bs->supported_zero_flags);
- s->bcs = block_copy_state_new(bs->file, s->target, bitmap, errp);
+ s->bcs = block_copy_state_new(bs->file, s->target, bs, bitmap, errp);
if (!s->bcs) {
error_prepend(errp, "Cannot create block-copy-state: ");
return -EINVAL;
diff --git a/include/block/block-copy.h b/include/block/block-copy.h
index 0700953ab8..8b41643bfa 100644
--- a/include/block/block-copy.h
+++ b/include/block/block-copy.h
@@ -25,6 +25,7 @@ typedef struct BlockCopyState BlockCopyState;
typedef struct BlockCopyCallState BlockCopyCallState;
BlockCopyState *block_copy_state_new(BdrvChild *source, BdrvChild *target,
+ BlockDriverState *copy_bitmap_bs,
const BdrvDirtyBitmap *bitmap,
Error **errp);
diff --git a/tests/qemu-iotests/257.out b/tests/qemu-iotests/257.out
index aa76131ca9..c33dd7f3a9 100644
--- a/tests/qemu-iotests/257.out
+++ b/tests/qemu-iotests/257.out
@@ -120,16 +120,16 @@ write -P0x67 0x3fe0000 0x20000
"granularity": 65536,
"persistent": false,
"recording": false
- }
- ],
- "drive0": [
+ },
{
"busy": false,
"count": 0,
"granularity": 65536,
"persistent": false,
"recording": false
- },
+ }
+ ],
+ "drive0": [
{
"busy": false,
"count": 458752,
@@ -596,16 +596,16 @@ write -P0x67 0x3fe0000 0x20000
"granularity": 65536,
"persistent": false,
"recording": false
- }
- ],
- "drive0": [
+ },
{
"busy": false,
"count": 0,
"granularity": 65536,
"persistent": false,
"recording": false
- },
+ }
+ ],
+ "drive0": [
{
"busy": false,
"count": 458752,
@@ -865,16 +865,16 @@ write -P0x67 0x3fe0000 0x20000
"granularity": 65536,
"persistent": false,
"recording": false
- }
- ],
- "drive0": [
+ },
{
"busy": false,
"count": 0,
"granularity": 65536,
"persistent": false,
"recording": false
- },
+ }
+ ],
+ "drive0": [
{
"busy": false,
"count": 458752,
@@ -1341,16 +1341,16 @@ write -P0x67 0x3fe0000 0x20000
"granularity": 65536,
"persistent": false,
"recording": false
- }
- ],
- "drive0": [
+ },
{
"busy": false,
"count": 0,
"granularity": 65536,
"persistent": false,
"recording": false
- },
+ }
+ ],
+ "drive0": [
{
"busy": false,
"count": 458752,
@@ -1610,16 +1610,16 @@ write -P0x67 0x3fe0000 0x20000
"granularity": 65536,
"persistent": false,
"recording": false
- }
- ],
- "drive0": [
+ },
{
"busy": false,
"count": 0,
"granularity": 65536,
"persistent": false,
"recording": false
- },
+ }
+ ],
+ "drive0": [
{
"busy": false,
"count": 458752,
@@ -2086,16 +2086,16 @@ write -P0x67 0x3fe0000 0x20000
"granularity": 65536,
"persistent": false,
"recording": false
- }
- ],
- "drive0": [
+ },
{
"busy": false,
"count": 0,
"granularity": 65536,
"persistent": false,
"recording": false
- },
+ }
+ ],
+ "drive0": [
{
"busy": false,
"count": 458752,
@@ -2355,16 +2355,16 @@ write -P0x67 0x3fe0000 0x20000
"granularity": 65536,
"persistent": false,
"recording": false
- }
- ],
- "drive0": [
+ },
{
"busy": false,
"count": 0,
"granularity": 65536,
"persistent": false,
"recording": false
- },
+ }
+ ],
+ "drive0": [
{
"busy": false,
"count": 458752,
@@ -2831,16 +2831,16 @@ write -P0x67 0x3fe0000 0x20000
"granularity": 65536,
"persistent": false,
"recording": false
- }
- ],
- "drive0": [
+ },
{
"busy": false,
"count": 0,
"granularity": 65536,
"persistent": false,
"recording": false
- },
+ }
+ ],
+ "drive0": [
{
"busy": false,
"count": 458752,
@@ -3100,16 +3100,16 @@ write -P0x67 0x3fe0000 0x20000
"granularity": 65536,
"persistent": false,
"recording": false
- }
- ],
- "drive0": [
+ },
{
"busy": false,
"count": 0,
"granularity": 65536,
"persistent": false,
"recording": false
- },
+ }
+ ],
+ "drive0": [
{
"busy": false,
"count": 458752,
@@ -3576,16 +3576,16 @@ write -P0x67 0x3fe0000 0x20000
"granularity": 65536,
"persistent": false,
"recording": false
- }
- ],
- "drive0": [
+ },
{
"busy": false,
"count": 0,
"granularity": 65536,
"persistent": false,
"recording": false
- },
+ }
+ ],
+ "drive0": [
{
"busy": false,
"count": 458752,
@@ -3845,16 +3845,16 @@ write -P0x67 0x3fe0000 0x20000
"granularity": 65536,
"persistent": false,
"recording": false
- }
- ],
- "drive0": [
+ },
{
"busy": false,
"count": 0,
"granularity": 65536,
"persistent": false,
"recording": false
- },
+ }
+ ],
+ "drive0": [
{
"busy": false,
"count": 458752,
@@ -4321,16 +4321,16 @@ write -P0x67 0x3fe0000 0x20000
"granularity": 65536,
"persistent": false,
"recording": false
- }
- ],
- "drive0": [
+ },
{
"busy": false,
"count": 0,
"granularity": 65536,
"persistent": false,
"recording": false
- },
+ }
+ ],
+ "drive0": [
{
"busy": false,
"count": 458752,
@@ -4590,16 +4590,16 @@ write -P0x67 0x3fe0000 0x20000
"granularity": 65536,
"persistent": false,
"recording": false
- }
- ],
- "drive0": [
+ },
{
"busy": false,
"count": 0,
"granularity": 65536,
"persistent": false,
"recording": false
- },
+ }
+ ],
+ "drive0": [
{
"busy": false,
"count": 458752,
@@ -5066,16 +5066,16 @@ write -P0x67 0x3fe0000 0x20000
"granularity": 65536,
"persistent": false,
"recording": false
- }
- ],
- "drive0": [
+ },
{
"busy": false,
"count": 0,
"granularity": 65536,
"persistent": false,
"recording": false
- },
+ }
+ ],
+ "drive0": [
{
"busy": false,
"count": 458752,

View File

@@ -0,0 +1,85 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Stefan Reiter <s.reiter@proxmox.com>
Date: Thu, 13 Aug 2020 13:50:27 +0200
Subject: [PATCH] PVE: add zero block handling to PBS dump callback
Both the PBS and VMA dump callbacks assume that a NULL pointer can be
passed as *pbuf, but that never happens, as backup-dump.c calls this
function with contents of an iovec.
So first, remove that assumption and add an 'assert' to verify.
Secondly, while the vma-writer already does the buffer_is_zero check
internally, for PBS we relied on that non-existant behaviour for zero
chunks, so do the buffer_is_zero check manually and pass NULL to the
rust lib in case it is true.
Signed-off-by: Stefan Reiter <s.reiter@proxmox.com>
---
pve-backup.c | 14 +++++++++-----
1 file changed, 9 insertions(+), 5 deletions(-)
diff --git a/pve-backup.c b/pve-backup.c
index f14273645a..bd802c6205 100644
--- a/pve-backup.c
+++ b/pve-backup.c
@@ -8,6 +8,7 @@
#include "block/blockjob.h"
#include "qapi/qapi-commands-block.h"
#include "qapi/qmp/qerror.h"
+#include "qemu/cutils.h"
/* PVE backup state and related function */
@@ -136,10 +137,13 @@ pvebackup_co_dump_pbs_cb(
PVEBackupDevInfo *di = opaque;
assert(backup_state.pbs);
+ assert(buf);
Error *local_err = NULL;
int pbs_res = -1;
+ bool is_zero_block = size == di->block_size && buffer_is_zero(buf, size);
+
qemu_co_mutex_lock(&backup_state.dump_callback_mutex);
// avoid deadlock if job is cancelled
@@ -155,7 +159,8 @@ pvebackup_co_dump_pbs_cb(
uint64_t to_transfer = left < di->block_size ? left : di->block_size;
pbs_res = proxmox_backup_co_write_data(backup_state.pbs, di->dev_id,
- buf ? buf + transferred : NULL, start + transferred, to_transfer, &local_err);
+ is_zero_block ? NULL : buf + transferred, start + transferred,
+ to_transfer, &local_err);
transferred += to_transfer;
if (pbs_res < 0) {
@@ -168,7 +173,7 @@ pvebackup_co_dump_pbs_cb(
}
qemu_co_mutex_unlock(&backup_state.dump_callback_mutex);
- pvebackup_add_transfered_bytes(size, !buf ? size : 0, reused);
+ pvebackup_add_transfered_bytes(size, is_zero_block ? size : 0, reused);
return size;
}
@@ -190,6 +195,7 @@ pvebackup_co_dump_vma_cb(
int ret = -1;
assert(backup_state.vmaw);
+ assert(buf);
uint64_t remaining = size;
@@ -216,9 +222,7 @@ pvebackup_co_dump_vma_cb(
qemu_co_mutex_unlock(&backup_state.dump_callback_mutex);
++cluster_num;
- if (buf) {
- buf += VMA_CLUSTER_SIZE;
- }
+ buf += VMA_CLUSTER_SIZE;
if (ret < 0) {
Error *local_err = NULL;
vma_writer_error_propagate(backup_state.vmaw, &local_err);

View File

@@ -1,277 +0,0 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Vladimir Sementsov-Ogievskiy <vsementsov@yandex-team.ru>
Date: Thu, 11 Apr 2024 11:29:25 +0200
Subject: [PATCH] qapi: blockdev-backup: add discard-source parameter
Add a parameter that enables discard-after-copy. That is mostly useful
in "push backup with fleecing" scheme, when source is snapshot-access
format driver node, based on copy-before-write filter snapshot-access
API:
[guest] [snapshot-access] ~~ blockdev-backup ~~> [backup target]
| |
| root | file
v v
[copy-before-write]
| |
| file | target
v v
[active disk] [temp.img]
In this case discard-after-copy does two things:
- discard data in temp.img to save disk space
- avoid further copy-before-write operation in discarded area
Note that we have to declare WRITE permission on source in
copy-before-write filter, for discard to work. Still we can't take it
unconditionally, as it will break normal backup from RO source. So, we
have to add a parameter and pass it thorough bdrv_open flags.
Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@yandex-team.ru>
Signed-off-by: Fiona Ebner <f.ebner@proxmox.com>
Signed-off-by: Thomas Lamprecht <t.lamprecht@proxmox.com>
---
block/backup.c | 5 +++--
block/block-copy.c | 9 +++++++++
block/copy-before-write.c | 15 +++++++++++++--
block/copy-before-write.h | 1 +
block/replication.c | 4 ++--
blockdev.c | 2 +-
include/block/block-common.h | 2 ++
include/block/block-copy.h | 1 +
include/block/block_int-global-state.h | 2 +-
qapi/block-core.json | 4 ++++
10 files changed, 37 insertions(+), 8 deletions(-)
diff --git a/block/backup.c b/block/backup.c
index 16d611c4ca..1963e47ab9 100644
--- a/block/backup.c
+++ b/block/backup.c
@@ -332,7 +332,7 @@ BlockJob *backup_job_create(const char *job_id, BlockDriverState *bs,
BlockDriverState *target, int64_t speed,
MirrorSyncMode sync_mode, BdrvDirtyBitmap *sync_bitmap,
BitmapSyncMode bitmap_mode,
- bool compress,
+ bool compress, bool discard_source,
const char *filter_node_name,
BackupPerf *perf,
BlockdevOnError on_source_error,
@@ -433,7 +433,8 @@ BlockJob *backup_job_create(const char *job_id, BlockDriverState *bs,
goto error;
}
- cbw = bdrv_cbw_append(bs, target, filter_node_name, &bcs, errp);
+ cbw = bdrv_cbw_append(bs, target, filter_node_name, discard_source,
+ &bcs, errp);
if (!cbw) {
goto error;
}
diff --git a/block/block-copy.c b/block/block-copy.c
index 8fca2c3698..7e3b378528 100644
--- a/block/block-copy.c
+++ b/block/block-copy.c
@@ -137,6 +137,7 @@ typedef struct BlockCopyState {
CoMutex lock;
int64_t in_flight_bytes;
BlockCopyMethod method;
+ bool discard_source;
BlockReqList reqs;
QLIST_HEAD(, BlockCopyCallState) calls;
/*
@@ -353,6 +354,7 @@ static int64_t block_copy_calculate_cluster_size(BlockDriverState *target,
BlockCopyState *block_copy_state_new(BdrvChild *source, BdrvChild *target,
BlockDriverState *copy_bitmap_bs,
const BdrvDirtyBitmap *bitmap,
+ bool discard_source,
Error **errp)
{
ERRP_GUARD();
@@ -418,6 +420,7 @@ BlockCopyState *block_copy_state_new(BdrvChild *source, BdrvChild *target,
cluster_size),
};
+ s->discard_source = discard_source;
block_copy_set_copy_opts(s, false, false);
ratelimit_init(&s->rate_limit);
@@ -589,6 +592,12 @@ static coroutine_fn int block_copy_task_entry(AioTask *task)
co_put_to_shres(s->mem, t->req.bytes);
block_copy_task_end(t, ret);
+ if (s->discard_source && ret == 0) {
+ int64_t nbytes =
+ MIN(t->req.offset + t->req.bytes, s->len) - t->req.offset;
+ bdrv_co_pdiscard(s->source, t->req.offset, nbytes);
+ }
+
return ret;
}
diff --git a/block/copy-before-write.c b/block/copy-before-write.c
index 94db31512d..853e01a1eb 100644
--- a/block/copy-before-write.c
+++ b/block/copy-before-write.c
@@ -44,6 +44,7 @@ typedef struct BDRVCopyBeforeWriteState {
BdrvChild *target;
OnCbwError on_cbw_error;
uint64_t cbw_timeout_ns;
+ bool discard_source;
/*
* @lock: protects access to @access_bitmap, @done_bitmap and
@@ -357,6 +358,8 @@ cbw_child_perm(BlockDriverState *bs, BdrvChild *c, BdrvChildRole role,
uint64_t perm, uint64_t shared,
uint64_t *nperm, uint64_t *nshared)
{
+ BDRVCopyBeforeWriteState *s = bs->opaque;
+
if (!(role & BDRV_CHILD_FILTERED)) {
/*
* Target child
@@ -381,6 +384,10 @@ cbw_child_perm(BlockDriverState *bs, BdrvChild *c, BdrvChildRole role,
* start
*/
*nperm = *nperm | BLK_PERM_CONSISTENT_READ;
+ if (s->discard_source) {
+ *nperm = *nperm | BLK_PERM_WRITE;
+ }
+
*nshared &= ~(BLK_PERM_WRITE | BLK_PERM_RESIZE);
}
}
@@ -468,7 +475,9 @@ static int cbw_open(BlockDriverState *bs, QDict *options, int flags,
((BDRV_REQ_FUA | BDRV_REQ_MAY_UNMAP | BDRV_REQ_NO_FALLBACK) &
bs->file->bs->supported_zero_flags);
- s->bcs = block_copy_state_new(bs->file, s->target, bs, bitmap, errp);
+ s->discard_source = flags & BDRV_O_CBW_DISCARD_SOURCE;
+ s->bcs = block_copy_state_new(bs->file, s->target, bs, bitmap,
+ flags & BDRV_O_CBW_DISCARD_SOURCE, errp);
if (!s->bcs) {
error_prepend(errp, "Cannot create block-copy-state: ");
return -EINVAL;
@@ -535,12 +544,14 @@ static BlockDriver bdrv_cbw_filter = {
BlockDriverState *bdrv_cbw_append(BlockDriverState *source,
BlockDriverState *target,
const char *filter_node_name,
+ bool discard_source,
BlockCopyState **bcs,
Error **errp)
{
BDRVCopyBeforeWriteState *state;
BlockDriverState *top;
QDict *opts;
+ int flags = BDRV_O_RDWR | (discard_source ? BDRV_O_CBW_DISCARD_SOURCE : 0);
assert(source->total_sectors == target->total_sectors);
GLOBAL_STATE_CODE();
@@ -553,7 +564,7 @@ BlockDriverState *bdrv_cbw_append(BlockDriverState *source,
qdict_put_str(opts, "file", bdrv_get_node_name(source));
qdict_put_str(opts, "target", bdrv_get_node_name(target));
- top = bdrv_insert_node(source, opts, BDRV_O_RDWR, errp);
+ top = bdrv_insert_node(source, opts, flags, errp);
if (!top) {
return NULL;
}
diff --git a/block/copy-before-write.h b/block/copy-before-write.h
index 6e72bb25e9..01af0cd3c4 100644
--- a/block/copy-before-write.h
+++ b/block/copy-before-write.h
@@ -39,6 +39,7 @@
BlockDriverState *bdrv_cbw_append(BlockDriverState *source,
BlockDriverState *target,
const char *filter_node_name,
+ bool discard_source,
BlockCopyState **bcs,
Error **errp);
void bdrv_cbw_drop(BlockDriverState *bs);
diff --git a/block/replication.c b/block/replication.c
index ca6bd0a720..0415a5e8b7 100644
--- a/block/replication.c
+++ b/block/replication.c
@@ -582,8 +582,8 @@ static void replication_start(ReplicationState *rs, ReplicationMode mode,
s->backup_job = backup_job_create(
NULL, s->secondary_disk->bs, s->hidden_disk->bs,
- 0, MIRROR_SYNC_MODE_NONE, NULL, 0, false, NULL,
- &perf,
+ 0, MIRROR_SYNC_MODE_NONE, NULL, 0, false, false,
+ NULL, &perf,
BLOCKDEV_ON_ERROR_REPORT,
BLOCKDEV_ON_ERROR_REPORT, JOB_INTERNAL,
backup_job_completed, bs, NULL, &local_err);
diff --git a/blockdev.c b/blockdev.c
index 5e5dbc1da9..1054a69279 100644
--- a/blockdev.c
+++ b/blockdev.c
@@ -2727,7 +2727,7 @@ static BlockJob *do_backup_common(BackupCommon *backup,
job = backup_job_create(backup->job_id, bs, target_bs, backup->speed,
backup->sync, bmap, backup->bitmap_mode,
- backup->compress,
+ backup->compress, backup->discard_source,
backup->filter_node_name,
&perf,
backup->on_source_error,
diff --git a/include/block/block-common.h b/include/block/block-common.h
index a846023a09..338fe5ff7a 100644
--- a/include/block/block-common.h
+++ b/include/block/block-common.h
@@ -243,6 +243,8 @@ typedef enum {
read-write fails */
#define BDRV_O_IO_URING 0x40000 /* use io_uring instead of the thread pool */
+#define BDRV_O_CBW_DISCARD_SOURCE 0x80000 /* for copy-before-write filter */
+
#define BDRV_O_CACHE_MASK (BDRV_O_NOCACHE | BDRV_O_NO_FLUSH)
diff --git a/include/block/block-copy.h b/include/block/block-copy.h
index 8b41643bfa..bdc703bacd 100644
--- a/include/block/block-copy.h
+++ b/include/block/block-copy.h
@@ -27,6 +27,7 @@ typedef struct BlockCopyCallState BlockCopyCallState;
BlockCopyState *block_copy_state_new(BdrvChild *source, BdrvChild *target,
BlockDriverState *copy_bitmap_bs,
const BdrvDirtyBitmap *bitmap,
+ bool discard_source,
Error **errp);
/* Function should be called prior any actual copy request */
diff --git a/include/block/block_int-global-state.h b/include/block/block_int-global-state.h
index cc1387ae02..f0c642b194 100644
--- a/include/block/block_int-global-state.h
+++ b/include/block/block_int-global-state.h
@@ -195,7 +195,7 @@ BlockJob *backup_job_create(const char *job_id, BlockDriverState *bs,
MirrorSyncMode sync_mode,
BdrvDirtyBitmap *sync_bitmap,
BitmapSyncMode bitmap_mode,
- bool compress,
+ bool compress, bool discard_source,
const char *filter_node_name,
BackupPerf *perf,
BlockdevOnError on_source_error,
diff --git a/qapi/block-core.json b/qapi/block-core.json
index f516d8e95a..d796d49abb 100644
--- a/qapi/block-core.json
+++ b/qapi/block-core.json
@@ -1849,6 +1849,9 @@
# node specified by @drive. If this option is not given, a node
# name is autogenerated. (Since: 4.2)
#
+# @discard-source: Discard blocks on source which are already copied
+# to the target. (Since 9.0)
+#
# @x-perf: Performance options. (Since 6.0)
#
# Features:
@@ -1870,6 +1873,7 @@
'*on-target-error': 'BlockdevOnError',
'*auto-finalize': 'bool', '*auto-dismiss': 'bool',
'*filter-node-name': 'str',
+ '*discard-source': 'bool',
'*x-perf': { 'type': 'BackupPerf',
'features': [ 'unstable' ] } } }

View File

@@ -0,0 +1,437 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Stefan Reiter <s.reiter@proxmox.com>
Date: Wed, 19 Aug 2020 17:02:00 +0200
Subject: [PATCH] PVE: add query-pbs-bitmap-info QMP call
Returns advanced information about dirty bitmaps used (or not used) for
the latest PBS backup.
Signed-off-by: Stefan Reiter <s.reiter@proxmox.com>
---
monitor/hmp-cmds.c | 28 ++++++-----
pve-backup.c | 117 ++++++++++++++++++++++++++++++++-----------
qapi/block-core.json | 56 +++++++++++++++++++++
3 files changed, 159 insertions(+), 42 deletions(-)
diff --git a/monitor/hmp-cmds.c b/monitor/hmp-cmds.c
index 3ff014d32a..c3227a1498 100644
--- a/monitor/hmp-cmds.c
+++ b/monitor/hmp-cmds.c
@@ -195,6 +195,7 @@ void hmp_info_mice(Monitor *mon, const QDict *qdict)
void hmp_info_backup(Monitor *mon, const QDict *qdict)
{
BackupStatus *info;
+ PBSBitmapInfoList *bitmap_info;
info = qmp_query_backup(NULL);
@@ -225,26 +226,29 @@ void hmp_info_backup(Monitor *mon, const QDict *qdict)
// this should not happen normally
monitor_printf(mon, "Total size: %d\n", 0);
} else {
- bool incremental = false;
size_t total_or_dirty = info->total;
- if (info->has_transferred) {
- if (info->has_dirty && info->dirty) {
- if (info->dirty < info->total) {
- total_or_dirty = info->dirty;
- incremental = true;
- }
- }
+ bitmap_info = qmp_query_pbs_bitmap_info(NULL);
+
+ while (bitmap_info) {
+ monitor_printf(mon, "Drive %s:\n",
+ bitmap_info->value->drive);
+ monitor_printf(mon, " bitmap action: %s\n",
+ PBSBitmapAction_str(bitmap_info->value->action));
+ monitor_printf(mon, " size: %zd\n",
+ bitmap_info->value->size);
+ monitor_printf(mon, " dirty: %zd\n",
+ bitmap_info->value->dirty);
+ bitmap_info = bitmap_info->next;
}
- int per = (info->transferred * 100)/total_or_dirty;
-
- monitor_printf(mon, "Backup mode: %s\n", incremental ? "incremental" : "full");
+ qapi_free_PBSBitmapInfoList(bitmap_info);
int zero_per = (info->has_zero_bytes && info->zero_bytes) ?
(info->zero_bytes * 100)/info->total : 0;
monitor_printf(mon, "Total size: %zd\n", info->total);
+ int trans_per = (info->transferred * 100)/total_or_dirty;
monitor_printf(mon, "Transferred bytes: %zd (%d%%)\n",
- info->transferred, per);
+ info->transferred, trans_per);
monitor_printf(mon, "Zero bytes: %zd (%d%%)\n",
info->zero_bytes, zero_per);
diff --git a/pve-backup.c b/pve-backup.c
index bd802c6205..2db4a62580 100644
--- a/pve-backup.c
+++ b/pve-backup.c
@@ -46,6 +46,7 @@ static struct PVEBackupState {
size_t transferred;
size_t reused;
size_t zero_bytes;
+ GList *bitmap_list;
} stat;
int64_t speed;
VmaWriter *vmaw;
@@ -670,7 +671,6 @@ static void coroutine_fn pvebackup_co_prepare(void *opaque)
}
size_t total = 0;
- size_t dirty = 0;
l = di_list;
while (l) {
@@ -691,18 +691,33 @@ static void coroutine_fn pvebackup_co_prepare(void *opaque)
uuid_generate(uuid);
+ qemu_mutex_lock(&backup_state.stat.lock);
+ backup_state.stat.reused = 0;
+
+ /* clear previous backup's bitmap_list */
+ if (backup_state.stat.bitmap_list) {
+ GList *bl = backup_state.stat.bitmap_list;
+ while (bl) {
+ g_free(((PBSBitmapInfo *)bl->data)->drive);
+ g_free(bl->data);
+ bl = g_list_next(bl);
+ }
+ g_list_free(backup_state.stat.bitmap_list);
+ backup_state.stat.bitmap_list = NULL;
+ }
+
if (format == BACKUP_FORMAT_PBS) {
if (!task->has_password) {
error_set(task->errp, ERROR_CLASS_GENERIC_ERROR, "missing parameter 'password'");
- goto err;
+ goto err_mutex;
}
if (!task->has_backup_id) {
error_set(task->errp, ERROR_CLASS_GENERIC_ERROR, "missing parameter 'backup-id'");
- goto err;
+ goto err_mutex;
}
if (!task->has_backup_time) {
error_set(task->errp, ERROR_CLASS_GENERIC_ERROR, "missing parameter 'backup-time'");
- goto err;
+ goto err_mutex;
}
int dump_cb_block_size = PROXMOX_BACKUP_DEFAULT_CHUNK_SIZE; // Hardcoded (4M)
@@ -729,12 +744,12 @@ static void coroutine_fn pvebackup_co_prepare(void *opaque)
error_set(task->errp, ERROR_CLASS_GENERIC_ERROR,
"proxmox_backup_new failed: %s", pbs_err);
proxmox_backup_free_error(pbs_err);
- goto err;
+ goto err_mutex;
}
int connect_result = proxmox_backup_co_connect(pbs, task->errp);
if (connect_result < 0)
- goto err;
+ goto err_mutex;
/* register all devices */
l = di_list;
@@ -745,6 +760,8 @@ static void coroutine_fn pvebackup_co_prepare(void *opaque)
di->block_size = dump_cb_block_size;
const char *devname = bdrv_get_device_name(di->bs);
+ PBSBitmapAction action = PBS_BITMAP_ACTION_NOT_USED;
+ size_t dirty = di->size;
BdrvDirtyBitmap *bitmap = bdrv_find_dirty_bitmap(di->bs, PBS_BITMAP_NAME);
bool expect_only_dirty = false;
@@ -753,49 +770,59 @@ static void coroutine_fn pvebackup_co_prepare(void *opaque)
if (bitmap == NULL) {
bitmap = bdrv_create_dirty_bitmap(di->bs, dump_cb_block_size, PBS_BITMAP_NAME, task->errp);
if (!bitmap) {
- goto err;
+ goto err_mutex;
}
+ action = PBS_BITMAP_ACTION_NEW;
} else {
expect_only_dirty = proxmox_backup_check_incremental(pbs, devname, di->size) != 0;
}
if (expect_only_dirty) {
- dirty += bdrv_get_dirty_count(bitmap);
+ /* track clean chunks as reused */
+ dirty = MIN(bdrv_get_dirty_count(bitmap), di->size);
+ backup_state.stat.reused += di->size - dirty;
+ action = PBS_BITMAP_ACTION_USED;
} else {
/* mark entire bitmap as dirty to make full backup */
bdrv_set_dirty_bitmap(bitmap, 0, di->size);
- dirty += di->size;
+ if (action != PBS_BITMAP_ACTION_NEW) {
+ action = PBS_BITMAP_ACTION_INVALID;
+ }
}
di->bitmap = bitmap;
} else {
- dirty += di->size;
-
/* after a full backup the old dirty bitmap is invalid anyway */
if (bitmap != NULL) {
bdrv_release_dirty_bitmap(bitmap);
+ action = PBS_BITMAP_ACTION_NOT_USED_REMOVED;
}
}
int dev_id = proxmox_backup_co_register_image(pbs, devname, di->size, expect_only_dirty, task->errp);
if (dev_id < 0) {
- goto err;
+ goto err_mutex;
}
if (!(di->target = bdrv_backup_dump_create(dump_cb_block_size, di->size, pvebackup_co_dump_pbs_cb, di, task->errp))) {
- goto err;
+ goto err_mutex;
}
di->dev_id = dev_id;
+
+ PBSBitmapInfo *info = g_malloc(sizeof(*info));
+ info->drive = g_strdup(devname);
+ info->action = action;
+ info->size = di->size;
+ info->dirty = dirty;
+ backup_state.stat.bitmap_list = g_list_append(backup_state.stat.bitmap_list, info);
}
} else if (format == BACKUP_FORMAT_VMA) {
- dirty = total;
-
vmaw = vma_writer_create(task->backup_file, uuid, &local_err);
if (!vmaw) {
if (local_err) {
error_propagate(task->errp, local_err);
}
- goto err;
+ goto err_mutex;
}
/* register all devices for vma writer */
@@ -805,7 +832,7 @@ static void coroutine_fn pvebackup_co_prepare(void *opaque)
l = g_list_next(l);
if (!(di->target = bdrv_backup_dump_create(VMA_CLUSTER_SIZE, di->size, pvebackup_co_dump_vma_cb, di, task->errp))) {
- goto err;
+ goto err_mutex;
}
const char *devname = bdrv_get_device_name(di->bs);
@@ -813,16 +840,14 @@ static void coroutine_fn pvebackup_co_prepare(void *opaque)
if (di->dev_id <= 0) {
error_set(task->errp, ERROR_CLASS_GENERIC_ERROR,
"register_stream failed");
- goto err;
+ goto err_mutex;
}
}
} else if (format == BACKUP_FORMAT_DIR) {
- dirty = total;
-
if (mkdir(task->backup_file, 0640) != 0) {
error_setg_errno(task->errp, errno, "can't create directory '%s'\n",
task->backup_file);
- goto err;
+ goto err_mutex;
}
backup_dir = task->backup_file;
@@ -839,18 +864,18 @@ static void coroutine_fn pvebackup_co_prepare(void *opaque)
di->size, flags, false, &local_err);
if (local_err) {
error_propagate(task->errp, local_err);
- goto err;
+ goto err_mutex;
}
di->target = bdrv_open(di->targetfile, NULL, NULL, flags, &local_err);
if (!di->target) {
error_propagate(task->errp, local_err);
- goto err;
+ goto err_mutex;
}
}
} else {
error_set(task->errp, ERROR_CLASS_GENERIC_ERROR, "unknown backup format");
- goto err;
+ goto err_mutex;
}
@@ -858,7 +883,7 @@ static void coroutine_fn pvebackup_co_prepare(void *opaque)
if (task->has_config_file) {
if (pvebackup_co_add_config(task->config_file, config_name, format, backup_dir,
vmaw, pbs, task->errp) != 0) {
- goto err;
+ goto err_mutex;
}
}
@@ -866,12 +891,11 @@ static void coroutine_fn pvebackup_co_prepare(void *opaque)
if (task->has_firewall_file) {
if (pvebackup_co_add_config(task->firewall_file, firewall_name, format, backup_dir,
vmaw, pbs, task->errp) != 0) {
- goto err;
+ goto err_mutex;
}
}
/* initialize global backup_state now */
-
- qemu_mutex_lock(&backup_state.stat.lock);
+ /* note: 'reused' and 'bitmap_list' are initialized earlier */
if (backup_state.stat.error) {
error_free(backup_state.stat.error);
@@ -891,10 +915,9 @@ static void coroutine_fn pvebackup_co_prepare(void *opaque)
char *uuid_str = g_strdup(backup_state.stat.uuid_str);
backup_state.stat.total = total;
- backup_state.stat.dirty = dirty;
+ backup_state.stat.dirty = total - backup_state.stat.reused;
backup_state.stat.transferred = 0;
backup_state.stat.zero_bytes = 0;
- backup_state.stat.reused = format == BACKUP_FORMAT_PBS && dirty >= total ? 0 : total - dirty;
qemu_mutex_unlock(&backup_state.stat.lock);
@@ -911,6 +934,9 @@ static void coroutine_fn pvebackup_co_prepare(void *opaque)
task->result = uuid_info;
return;
+err_mutex:
+ qemu_mutex_unlock(&backup_state.stat.lock);
+
err:
l = di_list;
@@ -1074,10 +1100,41 @@ BackupStatus *qmp_query_backup(Error **errp)
return info;
}
+PBSBitmapInfoList *qmp_query_pbs_bitmap_info(Error **errp)
+{
+ PBSBitmapInfoList *head = NULL, **p_next = &head;
+
+ qemu_mutex_lock(&backup_state.stat.lock);
+
+ GList *l = backup_state.stat.bitmap_list;
+ while (l) {
+ PBSBitmapInfo *info = (PBSBitmapInfo *)l->data;
+ l = g_list_next(l);
+
+ /* clone bitmap info to avoid auto free after QMP marshalling */
+ PBSBitmapInfo *info_ret = g_malloc0(sizeof(*info_ret));
+ info_ret->drive = g_strdup(info->drive);
+ info_ret->action = info->action;
+ info_ret->size = info->size;
+ info_ret->dirty = info->dirty;
+
+ PBSBitmapInfoList *info_list = g_malloc0(sizeof(*info_list));
+ info_list->value = info_ret;
+
+ *p_next = info_list;
+ p_next = &info_list->next;
+ }
+
+ qemu_mutex_unlock(&backup_state.stat.lock);
+
+ return head;
+}
+
ProxmoxSupportStatus *qmp_query_proxmox_support(Error **errp)
{
ProxmoxSupportStatus *ret = g_malloc0(sizeof(*ret));
ret->pbs_library_version = g_strdup(proxmox_backup_qemu_version());
ret->pbs_dirty_bitmap = true;
+ ret->query_bitmap_info = true;
return ret;
}
diff --git a/qapi/block-core.json b/qapi/block-core.json
index 1ed5987c88..03fc0af99b 100644
--- a/qapi/block-core.json
+++ b/qapi/block-core.json
@@ -885,11 +885,14 @@
# @pbs-dirty-bitmap: True if dirty-bitmap-incremental backups to PBS are
# supported.
#
+# @query-bitmap-info: True if the 'query-pbs-bitmap-info' QMP call is supported.
+#
# @pbs-library-version: Running version of libproxmox-backup-qemu0 library.
#
##
{ 'struct': 'ProxmoxSupportStatus',
'data': { 'pbs-dirty-bitmap': 'bool',
+ 'query-bitmap-info': 'bool',
'pbs-library-version': 'str' } }
##
@@ -902,6 +905,59 @@
##
{ 'command': 'query-proxmox-support', 'returns': 'ProxmoxSupportStatus' }
+##
+# @PBSBitmapAction:
+#
+# An action taken on a dirty-bitmap when a backup job was started.
+#
+# @not-used: Bitmap mode was not enabled.
+#
+# @not-used-removed: Bitmap mode was not enabled, but a bitmap from a
+# previous backup still existed and was removed.
+#
+# @new: A new bitmap was attached to the drive for this backup.
+#
+# @used: An existing bitmap will be used to only backup changed data.
+#
+# @invalid: A bitmap existed, but had to be cleared since it's associated
+# base snapshot did not match the base given for the current job or
+# the crypt mode has changed.
+#
+##
+{ 'enum': 'PBSBitmapAction',
+ 'data': ['not-used', 'not-used-removed', 'new', 'used', 'invalid'] }
+
+##
+# @PBSBitmapInfo:
+#
+# Contains information about dirty bitmaps used for each drive in a PBS backup.
+#
+# @drive: The underlying drive.
+#
+# @action: The action that was taken when the backup started.
+#
+# @size: The total size of the drive.
+#
+# @dirty: How much of the drive is considered dirty and will be backed up,
+# or 'size' if everything will be.
+#
+##
+{ 'struct': 'PBSBitmapInfo',
+ 'data': { 'drive': 'str', 'action': 'PBSBitmapAction', 'size': 'int',
+ 'dirty': 'int' } }
+
+##
+# @query-pbs-bitmap-info:
+#
+# Returns information about dirty bitmaps used on the most recently started
+# backup. Returns nothing when the last backup was not using PBS or if no
+# backup occured in this session.
+#
+# Returns: @PBSBitmapInfo
+#
+##
+{ 'command': 'query-pbs-bitmap-info', 'returns': ['PBSBitmapInfo'] }
+
##
# @BlockDeviceTimedStats:
#

View File

@@ -1,133 +0,0 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Fiona Ebner <f.ebner@proxmox.com>
Date: Thu, 11 Apr 2024 11:29:26 +0200
Subject: [PATCH] copy-before-write: allow specifying minimum cluster size
Useful to make discard-source work in the context of backup fleecing
when the fleecing image has a larger granularity than the backup
target.
Copy-before-write operations will use at least this granularity and in
particular, discard requests to the source node will too. If the
granularity is too small, they will just be aligned down in
cbw_co_pdiscard_snapshot() and thus effectively ignored.
The QAPI uses uint32 so the value will be non-negative, but still fit
into a uint64_t.
Signed-off-by: Fiona Ebner <f.ebner@proxmox.com>
Signed-off-by: Thomas Lamprecht <t.lamprecht@proxmox.com>
---
block/block-copy.c | 17 +++++++++++++----
block/copy-before-write.c | 3 ++-
include/block/block-copy.h | 1 +
qapi/block-core.json | 8 +++++++-
4 files changed, 23 insertions(+), 6 deletions(-)
diff --git a/block/block-copy.c b/block/block-copy.c
index 7e3b378528..adb1cbb440 100644
--- a/block/block-copy.c
+++ b/block/block-copy.c
@@ -310,6 +310,7 @@ void block_copy_set_copy_opts(BlockCopyState *s, bool use_copy_range,
}
static int64_t block_copy_calculate_cluster_size(BlockDriverState *target,
+ int64_t min_cluster_size,
Error **errp)
{
int ret;
@@ -335,7 +336,7 @@ static int64_t block_copy_calculate_cluster_size(BlockDriverState *target,
"used. If the actual block size of the target exceeds "
"this default, the backup may be unusable",
BLOCK_COPY_CLUSTER_SIZE_DEFAULT);
- return BLOCK_COPY_CLUSTER_SIZE_DEFAULT;
+ return MAX(min_cluster_size, BLOCK_COPY_CLUSTER_SIZE_DEFAULT);
} else if (ret < 0 && !target_does_cow) {
error_setg_errno(errp, -ret,
"Couldn't determine the cluster size of the target image, "
@@ -345,16 +346,18 @@ static int64_t block_copy_calculate_cluster_size(BlockDriverState *target,
return ret;
} else if (ret < 0 && target_does_cow) {
/* Not fatal; just trudge on ahead. */
- return BLOCK_COPY_CLUSTER_SIZE_DEFAULT;
+ return MAX(min_cluster_size, BLOCK_COPY_CLUSTER_SIZE_DEFAULT);
}
- return MAX(BLOCK_COPY_CLUSTER_SIZE_DEFAULT, bdi.cluster_size);
+ return MAX(min_cluster_size,
+ MAX(BLOCK_COPY_CLUSTER_SIZE_DEFAULT, bdi.cluster_size));
}
BlockCopyState *block_copy_state_new(BdrvChild *source, BdrvChild *target,
BlockDriverState *copy_bitmap_bs,
const BdrvDirtyBitmap *bitmap,
bool discard_source,
+ int64_t min_cluster_size,
Error **errp)
{
ERRP_GUARD();
@@ -365,7 +368,13 @@ BlockCopyState *block_copy_state_new(BdrvChild *source, BdrvChild *target,
GLOBAL_STATE_CODE();
- cluster_size = block_copy_calculate_cluster_size(target->bs, errp);
+ if (min_cluster_size && !is_power_of_2(min_cluster_size)) {
+ error_setg(errp, "min-cluster-size needs to be a power of 2");
+ return NULL;
+ }
+
+ cluster_size = block_copy_calculate_cluster_size(target->bs,
+ min_cluster_size, errp);
if (cluster_size < 0) {
return NULL;
}
diff --git a/block/copy-before-write.c b/block/copy-before-write.c
index 853e01a1eb..47b3cdd09f 100644
--- a/block/copy-before-write.c
+++ b/block/copy-before-write.c
@@ -477,7 +477,8 @@ static int cbw_open(BlockDriverState *bs, QDict *options, int flags,
s->discard_source = flags & BDRV_O_CBW_DISCARD_SOURCE;
s->bcs = block_copy_state_new(bs->file, s->target, bs, bitmap,
- flags & BDRV_O_CBW_DISCARD_SOURCE, errp);
+ flags & BDRV_O_CBW_DISCARD_SOURCE,
+ opts->min_cluster_size, errp);
if (!s->bcs) {
error_prepend(errp, "Cannot create block-copy-state: ");
return -EINVAL;
diff --git a/include/block/block-copy.h b/include/block/block-copy.h
index bdc703bacd..77857c6c68 100644
--- a/include/block/block-copy.h
+++ b/include/block/block-copy.h
@@ -28,6 +28,7 @@ BlockCopyState *block_copy_state_new(BdrvChild *source, BdrvChild *target,
BlockDriverState *copy_bitmap_bs,
const BdrvDirtyBitmap *bitmap,
bool discard_source,
+ int64_t min_cluster_size,
Error **errp);
/* Function should be called prior any actual copy request */
diff --git a/qapi/block-core.json b/qapi/block-core.json
index d796d49abb..edbf6e78b9 100644
--- a/qapi/block-core.json
+++ b/qapi/block-core.json
@@ -4930,12 +4930,18 @@
# @on-cbw-error parameter will decide how this failure is handled.
# Default 0. (Since 7.1)
#
+# @min-cluster-size: Minimum size of blocks used by copy-before-write
+# operations. Has to be a power of 2. No effect if smaller than
+# the maximum of the target's cluster size and 64 KiB. Default 0.
+# (Since 8.1)
+#
# Since: 6.2
##
{ 'struct': 'BlockdevOptionsCbw',
'base': 'BlockdevOptionsGenericFormat',
'data': { 'target': 'BlockdevRef', '*bitmap': 'BlockDirtyBitmap',
- '*on-cbw-error': 'OnCbwError', '*cbw-timeout': 'uint32' } }
+ '*on-cbw-error': 'OnCbwError', '*cbw-timeout': 'uint32',
+ '*min-cluster-size': 'uint32' } }
##
# @BlockdevOptions:

View File

@@ -0,0 +1,52 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Stefan Reiter <s.reiter@proxmox.com>
Date: Tue, 30 Jun 2020 13:10:10 +0200
Subject: [PATCH] PVE: redirect stderr to journal when daemonized
QEMU uses the logging for error messages usually, so LOG_ERR is most
fitting.
Signed-off-by: Stefan Reiter <s.reiter@proxmox.com>
---
Makefile.objs | 1 +
os-posix.c | 7 +++++--
2 files changed, 6 insertions(+), 2 deletions(-)
diff --git a/Makefile.objs b/Makefile.objs
index 240eb503f2..c7ba4e11e7 100644
--- a/Makefile.objs
+++ b/Makefile.objs
@@ -54,6 +54,7 @@ common-obj-y += net/
common-obj-y += qdev-monitor.o
common-obj-$(CONFIG_WIN32) += os-win32.o
common-obj-$(CONFIG_POSIX) += os-posix.o
+os-posix.o-libs := -lsystemd
common-obj-$(CONFIG_LINUX) += fsdev/
diff --git a/os-posix.c b/os-posix.c
index 3572db3f44..b45dde63ac 100644
--- a/os-posix.c
+++ b/os-posix.c
@@ -28,6 +28,8 @@
#include <pwd.h>
#include <grp.h>
#include <libgen.h>
+#include <systemd/sd-journal.h>
+#include <syslog.h>
#include "qemu-common.h"
/* Needed early for CONFIG_BSD etc. */
@@ -312,9 +314,10 @@ void os_setup_post(void)
dup2(fd, 0);
dup2(fd, 1);
- /* In case -D is given do not redirect stderr to /dev/null */
+ /* In case -D is given do not redirect stderr to journal */
if (!qemu_logfile) {
- dup2(fd, 2);
+ int journal_fd = sd_journal_stream_fd("QEMU", LOG_ERR, 0);
+ dup2(journal_fd, 2);
}
close(fd);

View File

@@ -1,106 +0,0 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Fiona Ebner <f.ebner@proxmox.com>
Date: Thu, 11 Apr 2024 11:29:27 +0200
Subject: [PATCH] backup: add minimum cluster size to performance options
Useful to make discard-source work in the context of backup fleecing
when the fleecing image has a larger granularity than the backup
target.
Backup/block-copy will use at least this granularity for copy operations
and in particular, discard requests to the backup source will too. If
the granularity is too small, they will just be aligned down in
cbw_co_pdiscard_snapshot() and thus effectively ignored.
Signed-off-by: Fiona Ebner <f.ebner@proxmox.com>
Signed-off-by: Thomas Lamprecht <t.lamprecht@proxmox.com>
---
block/backup.c | 2 +-
block/copy-before-write.c | 2 ++
block/copy-before-write.h | 1 +
blockdev.c | 3 +++
qapi/block-core.json | 9 +++++++--
5 files changed, 14 insertions(+), 3 deletions(-)
diff --git a/block/backup.c b/block/backup.c
index 1963e47ab9..fe69723ada 100644
--- a/block/backup.c
+++ b/block/backup.c
@@ -434,7 +434,7 @@ BlockJob *backup_job_create(const char *job_id, BlockDriverState *bs,
}
cbw = bdrv_cbw_append(bs, target, filter_node_name, discard_source,
- &bcs, errp);
+ perf->min_cluster_size, &bcs, errp);
if (!cbw) {
goto error;
}
diff --git a/block/copy-before-write.c b/block/copy-before-write.c
index 47b3cdd09f..bba58326d7 100644
--- a/block/copy-before-write.c
+++ b/block/copy-before-write.c
@@ -546,6 +546,7 @@ BlockDriverState *bdrv_cbw_append(BlockDriverState *source,
BlockDriverState *target,
const char *filter_node_name,
bool discard_source,
+ int64_t min_cluster_size,
BlockCopyState **bcs,
Error **errp)
{
@@ -564,6 +565,7 @@ BlockDriverState *bdrv_cbw_append(BlockDriverState *source,
}
qdict_put_str(opts, "file", bdrv_get_node_name(source));
qdict_put_str(opts, "target", bdrv_get_node_name(target));
+ qdict_put_int(opts, "min-cluster-size", min_cluster_size);
top = bdrv_insert_node(source, opts, flags, errp);
if (!top) {
diff --git a/block/copy-before-write.h b/block/copy-before-write.h
index 01af0cd3c4..dc6cafe7fa 100644
--- a/block/copy-before-write.h
+++ b/block/copy-before-write.h
@@ -40,6 +40,7 @@ BlockDriverState *bdrv_cbw_append(BlockDriverState *source,
BlockDriverState *target,
const char *filter_node_name,
bool discard_source,
+ int64_t min_cluster_size,
BlockCopyState **bcs,
Error **errp);
void bdrv_cbw_drop(BlockDriverState *bs);
diff --git a/blockdev.c b/blockdev.c
index 1054a69279..cbe224387b 100644
--- a/blockdev.c
+++ b/blockdev.c
@@ -2654,6 +2654,9 @@ static BlockJob *do_backup_common(BackupCommon *backup,
if (backup->x_perf->has_max_chunk) {
perf.max_chunk = backup->x_perf->max_chunk;
}
+ if (backup->x_perf->has_min_cluster_size) {
+ perf.min_cluster_size = backup->x_perf->min_cluster_size;
+ }
}
if ((backup->sync == MIRROR_SYNC_MODE_BITMAP) ||
diff --git a/qapi/block-core.json b/qapi/block-core.json
index edbf6e78b9..6e7ee87633 100644
--- a/qapi/block-core.json
+++ b/qapi/block-core.json
@@ -1790,11 +1790,16 @@
# it should not be less than job cluster size which is calculated
# as maximum of target image cluster size and 64k. Default 0.
#
+# @min-cluster-size: Minimum size of blocks used by copy-before-write
+# and background copy operations. Has to be a power of 2. No
+# effect if smaller than the maximum of the target's cluster size
+# and 64 KiB. Default 0. (Since 8.1)
+#
# Since: 6.0
##
{ 'struct': 'BackupPerf',
- 'data': { '*use-copy-range': 'bool',
- '*max-workers': 'int', '*max-chunk': 'int64' } }
+ 'data': { '*use-copy-range': 'bool', '*max-workers': 'int',
+ '*max-chunk': 'int64', '*min-cluster-size': 'uint32' } }
##
# @BackupCommon:

View File

@@ -4,17 +4,16 @@ Date: Thu, 20 Aug 2020 14:31:59 +0200
Subject: [PATCH] PVE: Add sequential job transaction support
Signed-off-by: Stefan Reiter <s.reiter@proxmox.com>
Signed-off-by: Thomas Lamprecht <t.lamprecht@proxmox.com>
---
include/qemu/job.h | 12 ++++++++++++
job.c | 34 ++++++++++++++++++++++++++++++++++
2 files changed, 46 insertions(+)
job.c | 24 ++++++++++++++++++++++++
2 files changed, 36 insertions(+)
diff --git a/include/qemu/job.h b/include/qemu/job.h
index 2b873f2576..528cd6acb9 100644
index 32aabb1c60..f7a6a0926a 100644
--- a/include/qemu/job.h
+++ b/include/qemu/job.h
@@ -362,6 +362,18 @@ void job_unlock(void);
@@ -280,6 +280,18 @@ typedef enum JobCreateFlags {
*/
JobTxn *job_txn_new(void);
@@ -34,10 +33,10 @@ index 2b873f2576..528cd6acb9 100644
* Release a reference that was previously acquired with job_txn_add_job or
* job_txn_new. If it's the last reference to the object, it will be freed.
diff --git a/job.c b/job.c
index baf54c8d60..3ac5e5cde2 100644
index b8139c80a4..97ee97a192 100644
--- a/job.c
+++ b/job.c
@@ -94,6 +94,8 @@ struct JobTxn {
@@ -72,6 +72,8 @@ struct JobTxn {
/* Reference count */
int refcnt;
@@ -45,8 +44,8 @@ index baf54c8d60..3ac5e5cde2 100644
+ bool sequential;
};
void job_lock(void)
@@ -119,6 +121,25 @@ JobTxn *job_txn_new(void)
/* Right now, this mutex is only needed to synchronize accesses to job->busy
@@ -102,6 +104,25 @@ JobTxn *job_txn_new(void)
return txn;
}
@@ -69,33 +68,16 @@ index baf54c8d60..3ac5e5cde2 100644
+ job_start(first);
+}
+
/* Called with job_mutex held. */
static void job_txn_ref_locked(JobTxn *txn)
static void job_txn_ref(JobTxn *txn)
{
@@ -1042,6 +1063,12 @@ static void job_completed_txn_success_locked(Job *job)
txn->refcnt++;
@@ -841,6 +862,9 @@ static void job_completed_txn_success(Job *job)
*/
QLIST_FOREACH(other_job, &txn->jobs, txn_list) {
if (!job_is_completed_locked(other_job)) {
if (!job_is_completed(other_job)) {
+ if (txn->sequential) {
+ job_unlock();
+ /* Needs to be called without holding the job lock */
+ job_start(other_job);
+ job_lock();
+ }
return;
}
assert(other_job->ret == 0);
@@ -1253,6 +1280,13 @@ int job_finish_sync_locked(Job *job,
return -EBUSY;
}
+ /* in a sequential transaction jobs with status CREATED can appear at time
+ * of cancelling, these have not begun work so job_enter won't do anything,
+ * let's ensure they are marked as ABORTING if required */
+ if (job->status == JOB_STATUS_CREATED && job->txn->sequential) {
+ job_update_rc_locked(job);
+ }
+
job_unlock();
AIO_WAIT_WHILE_UNLOCKED(job->aio_context,
(job_enter(job), !job_is_completed(job)));

View File

@@ -1,345 +0,0 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Fiona Ebner <f.ebner@proxmox.com>
Date: Thu, 11 Apr 2024 11:29:28 +0200
Subject: [PATCH] PVE backup: add fleecing option
When a fleecing option is given, it is expected that each device has
a corresponding "-fleecing" block device already attached, except for
EFI disk and TPM state, where fleecing is never used.
The following graph was adapted from [0] which also contains more
details about fleecing.
[guest]
|
| root
v file
[copy-before-write]<------[snapshot-access]
| |
| file | target
v v
[source] [fleecing]
For fleecing, a copy-before-write filter is inserted on top of the
source node, as well as a snapshot-access node pointing to the filter
node which allows to read the consistent state of the image at the
time it was inserted. New guest writes are passed through the
copy-before-write filter which will first copy over old data to the
fleecing image in case that old data is still needed by the
snapshot-access node.
The backup process will sequentially read from the snapshot access,
which has a bitmap and knows whether to read from the original image
or the fleecing image to get the "snapshot" state, i.e. data from the
source image at the time when the copy-before-write filter was
inserted. After reading, the copied sections are discarded from the
fleecing image to reduce space usage.
All of this can be restricted by an initial dirty bitmap to parts of
the source image that are required for an incremental backup.
For discard to work, it is necessary that the fleecing image does not
have a larger cluster size than the backup job granularity. Since
querying that size does not always work, e.g. for RBD with krbd, the
cluster size will not be reported, a minimum of 4 MiB is used. A job
with PBS target already has at least this granularity, so it's just
relevant for other targets. I.e. edge cases where this minimum is not
enough should be very rare in practice. If ever necessary in the
future, can still add a passed-in value for the backup QMP command to
override.
Additionally, the cbw-timeout and on-cbw-error=break-snapshot options
are set when installing the copy-before-write filter and
snapshot-access. When an error or timeout occurs, the problematic (and
each further) snapshot operation will fail and thus cancel the backup
instead of breaking the guest write.
Note that job_id cannot be inferred from the snapshot-access bs because
it has no parent, so just pass the one from the original bs.
[0]: https://www.mail-archive.com/qemu-devel@nongnu.org/msg876056.html
Signed-off-by: Fiona Ebner <f.ebner@proxmox.com>
Signed-off-by: Thomas Lamprecht <t.lamprecht@proxmox.com>
---
block/monitor/block-hmp-cmds.c | 1 +
pve-backup.c | 143 ++++++++++++++++++++++++++++++++-
qapi/block-core.json | 10 ++-
3 files changed, 150 insertions(+), 4 deletions(-)
diff --git a/block/monitor/block-hmp-cmds.c b/block/monitor/block-hmp-cmds.c
index 5000c084c5..70b3de4c7e 100644
--- a/block/monitor/block-hmp-cmds.c
+++ b/block/monitor/block-hmp-cmds.c
@@ -1043,6 +1043,7 @@ void coroutine_fn hmp_backup(Monitor *mon, const QDict *qdict)
NULL, NULL,
devlist, qdict_haskey(qdict, "speed"), speed,
false, 0, // BackupPerf max-workers
+ false, false, // fleecing
&error);
hmp_handle_error(mon, error);
diff --git a/pve-backup.c b/pve-backup.c
index 9d480a8eec..7cc1dd3724 100644
--- a/pve-backup.c
+++ b/pve-backup.c
@@ -7,9 +7,11 @@
#include "sysemu/blockdev.h"
#include "block/block_int-global-state.h"
#include "block/blockjob.h"
+#include "block/copy-before-write.h"
#include "block/dirty-bitmap.h"
#include "block/graph-lock.h"
#include "qapi/qapi-commands-block.h"
+#include "qapi/qmp/qdict.h"
#include "qapi/qmp/qerror.h"
#include "qemu/cutils.h"
@@ -81,8 +83,15 @@ static void pvebackup_init(void)
// initialize PVEBackupState at startup
opts_init(pvebackup_init);
+typedef struct PVEBackupFleecingInfo {
+ BlockDriverState *bs;
+ BlockDriverState *cbw;
+ BlockDriverState *snapshot_access;
+} PVEBackupFleecingInfo;
+
typedef struct PVEBackupDevInfo {
BlockDriverState *bs;
+ PVEBackupFleecingInfo fleecing;
size_t size;
uint64_t block_size;
uint8_t dev_id;
@@ -355,6 +364,25 @@ static void pvebackup_complete_cb(void *opaque, int ret)
PVEBackupDevInfo *di = opaque;
di->completed_ret = ret;
+ /*
+ * Handle block-graph specific cleanup (for fleecing) outside of the coroutine, because the work
+ * won't be done as a coroutine anyways:
+ * - For snapshot_access, allows doing bdrv_unref() directly. Doing it via bdrv_co_unref() would
+ * just spawn a BH calling bdrv_unref().
+ * - For cbw, draining would need to spawn a BH.
+ *
+ * Note that the AioContext lock is already acquired by our caller, i.e.
+ * job_finalize_single_locked()
+ */
+ if (di->fleecing.snapshot_access) {
+ bdrv_unref(di->fleecing.snapshot_access);
+ di->fleecing.snapshot_access = NULL;
+ }
+ if (di->fleecing.cbw) {
+ bdrv_cbw_drop(di->fleecing.cbw);
+ di->fleecing.cbw = NULL;
+ }
+
/*
* Needs to happen outside of coroutine, because it takes the graph write lock.
*/
@@ -522,9 +550,82 @@ static void create_backup_jobs_bh(void *opaque) {
}
bdrv_drained_begin(di->bs);
+ BackupPerf perf = (BackupPerf){ .max_workers = backup_state.perf.max_workers };
+
+ BlockDriverState *source_bs = di->bs;
+ bool discard_source = false;
+ bdrv_graph_co_rdlock();
+ const char *job_id = bdrv_get_device_name(di->bs);
+ bdrv_graph_co_rdunlock();
+ if (di->fleecing.bs) {
+ QDict *cbw_opts = qdict_new();
+ qdict_put_str(cbw_opts, "driver", "copy-before-write");
+ qdict_put_str(cbw_opts, "file", bdrv_get_node_name(di->bs));
+ qdict_put_str(cbw_opts, "target", bdrv_get_node_name(di->fleecing.bs));
+
+ if (di->bitmap) {
+ /*
+ * Only guest writes to parts relevant for the backup need to be intercepted with
+ * old data being copied to the fleecing image.
+ */
+ qdict_put_str(cbw_opts, "bitmap.node", bdrv_get_node_name(di->bs));
+ qdict_put_str(cbw_opts, "bitmap.name", bdrv_dirty_bitmap_name(di->bitmap));
+ }
+ /*
+ * Fleecing storage is supposed to be fast and it's better to break backup than guest
+ * writes. Certain guest drivers like VirtIO-win have 60 seconds timeout by default, so
+ * abort a bit before that.
+ */
+ qdict_put_str(cbw_opts, "on-cbw-error", "break-snapshot");
+ qdict_put_int(cbw_opts, "cbw-timeout", 45);
+
+ di->fleecing.cbw = bdrv_insert_node(di->bs, cbw_opts, BDRV_O_RDWR, &local_err);
+
+ if (!di->fleecing.cbw) {
+ error_setg(errp, "appending cbw node for fleecing failed: %s",
+ local_err ? error_get_pretty(local_err) : "unknown error");
+ break;
+ }
+
+ QDict *snapshot_access_opts = qdict_new();
+ qdict_put_str(snapshot_access_opts, "driver", "snapshot-access");
+ qdict_put_str(snapshot_access_opts, "file", bdrv_get_node_name(di->fleecing.cbw));
+
+ /*
+ * Holding the AioContext lock here would cause a deadlock, because bdrv_open_driver()
+ * will aquire it a second time. But it's allowed to be held exactly once when polling
+ * and that happens when the bdrv_refresh_total_sectors() call is made there.
+ */
+ di->fleecing.snapshot_access =
+ bdrv_open(NULL, NULL, snapshot_access_opts, BDRV_O_RDWR | BDRV_O_UNMAP, &local_err);
+ if (!di->fleecing.snapshot_access) {
+ error_setg(errp, "setting up snapshot access for fleecing failed: %s",
+ local_err ? error_get_pretty(local_err) : "unknown error");
+ break;
+ }
+ source_bs = di->fleecing.snapshot_access;
+ discard_source = true;
+
+ /*
+ * bdrv_get_info() just retuns 0 (= doesn't matter) for RBD when using krbd. But discard
+ * on the fleecing image won't work if the backup job's granularity is less than the RBD
+ * object size (default 4 MiB), so it does matter. Always use at least 4 MiB. With a PBS
+ * target, the backup job granularity would already be at least this much.
+ */
+ perf.min_cluster_size = 4 * 1024 * 1024;
+ /*
+ * For discard to work, cluster size for the backup job must be at least the same as for
+ * the fleecing image.
+ */
+ BlockDriverInfo bdi;
+ if (bdrv_get_info(di->fleecing.bs, &bdi) >= 0) {
+ perf.min_cluster_size = MAX(perf.min_cluster_size, bdi.cluster_size);
+ }
+ }
+
BlockJob *job = backup_job_create(
- NULL, di->bs, di->target, backup_state.speed, sync_mode, di->bitmap,
- bitmap_mode, false, NULL, &backup_state.perf, BLOCKDEV_ON_ERROR_REPORT,
+ job_id, source_bs, di->target, backup_state.speed, sync_mode, di->bitmap,
+ bitmap_mode, false, discard_source, NULL, &perf, BLOCKDEV_ON_ERROR_REPORT,
BLOCKDEV_ON_ERROR_REPORT, JOB_DEFAULT, pvebackup_complete_cb, di, backup_state.txn,
&local_err);
@@ -580,6 +681,14 @@ static void create_backup_jobs_bh(void *opaque) {
aio_co_enter(data->ctx, data->co);
}
+/*
+ * EFI disk and TPM state are small and it's just not worth setting up fleecing for them.
+ */
+static bool device_uses_fleecing(const char *device_id)
+{
+ return strncmp(device_id, "drive-efidisk", 13) && strncmp(device_id, "drive-tpmstate", 14);
+}
+
/*
* Returns a list of device infos, which needs to be freed by the caller. In
* case of an error, errp will be set, but the returned value might still be a
@@ -587,6 +696,7 @@ static void create_backup_jobs_bh(void *opaque) {
*/
static GList coroutine_fn GRAPH_RDLOCK *get_device_info(
const char *devlist,
+ bool fleecing,
Error **errp)
{
gchar **devs = NULL;
@@ -610,6 +720,31 @@ static GList coroutine_fn GRAPH_RDLOCK *get_device_info(
}
PVEBackupDevInfo *di = g_new0(PVEBackupDevInfo, 1);
di->bs = bs;
+
+ if (fleecing && device_uses_fleecing(*d)) {
+ g_autofree gchar *fleecing_devid = g_strconcat(*d, "-fleecing", NULL);
+ BlockBackend *fleecing_blk = blk_by_name(fleecing_devid);
+ if (!fleecing_blk) {
+ error_set(errp, ERROR_CLASS_DEVICE_NOT_FOUND,
+ "Device '%s' not found", fleecing_devid);
+ goto err;
+ }
+ BlockDriverState *fleecing_bs = blk_bs(fleecing_blk);
+ if (!bdrv_co_is_inserted(fleecing_bs)) {
+ error_setg(errp, QERR_DEVICE_HAS_NO_MEDIUM, fleecing_devid);
+ goto err;
+ }
+ /*
+ * Fleecing image needs to be the same size to act as a cbw target.
+ */
+ if (bs->total_sectors != fleecing_bs->total_sectors) {
+ error_setg(errp, "Size mismatch for '%s' - sector count %ld != %ld",
+ fleecing_devid, fleecing_bs->total_sectors, bs->total_sectors);
+ goto err;
+ }
+ di->fleecing.bs = fleecing_bs;
+ }
+
di_list = g_list_append(di_list, di);
d++;
}
@@ -659,6 +794,7 @@ UuidInfo coroutine_fn *qmp_backup(
const char *devlist,
bool has_speed, int64_t speed,
bool has_max_workers, int64_t max_workers,
+ bool has_fleecing, bool fleecing,
Error **errp)
{
assert(qemu_in_coroutine());
@@ -687,7 +823,7 @@ UuidInfo coroutine_fn *qmp_backup(
format = has_format ? format : BACKUP_FORMAT_VMA;
bdrv_graph_co_rdlock();
- di_list = get_device_info(devlist, &local_err);
+ di_list = get_device_info(devlist, has_fleecing && fleecing, &local_err);
bdrv_graph_co_rdunlock();
if (local_err) {
error_propagate(errp, local_err);
@@ -1095,5 +1231,6 @@ ProxmoxSupportStatus *qmp_query_proxmox_support(Error **errp)
ret->query_bitmap_info = true;
ret->pbs_masterkey = true;
ret->backup_max_workers = true;
+ ret->backup_fleecing = true;
return ret;
}
diff --git a/qapi/block-core.json b/qapi/block-core.json
index 6e7ee87633..dc5f75cd39 100644
--- a/qapi/block-core.json
+++ b/qapi/block-core.json
@@ -948,6 +948,10 @@
#
# @max-workers: see @BackupPerf for details. Default 16.
#
+# @fleecing: perform a backup with fleecing. For each device in @devlist, a
+# corresponing '-fleecing' device with the same size already needs to
+# be present.
+#
# Returns: the uuid of the backup job
#
##
@@ -968,7 +972,8 @@
'*firewall-file': 'str',
'*devlist': 'str',
'*speed': 'int',
- '*max-workers': 'int' },
+ '*max-workers': 'int',
+ '*fleecing': 'bool' },
'returns': 'UuidInfo', 'coroutine': true }
##
@@ -1014,6 +1019,8 @@
#
# @pbs-library-version: Running version of libproxmox-backup-qemu0 library.
#
+# @backup-fleecing: Whether backup fleecing is supported or not.
+#
# @backup-max-workers: Whether the 'max-workers' @BackupPerf setting is
# supported or not.
#
@@ -1025,6 +1032,7 @@
'pbs-dirty-bitmap-migration': 'bool',
'pbs-masterkey': 'bool',
'pbs-library-version': 'str',
+ 'backup-fleecing': 'bool',
'backup-max-workers': 'bool' } }
##

View File

@@ -0,0 +1,292 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Stefan Reiter <s.reiter@proxmox.com>
Date: Thu, 20 Aug 2020 14:25:00 +0200
Subject: [PATCH] PVE-Backup: Use a transaction to synchronize job states
By using a JobTxn, we can sync dirty bitmaps only when *all* jobs were
successful - meaning we don't need to remove them when the backup fails,
since QEMU's BITMAP_SYNC_MODE_ON_SUCCESS will now handle that for us.
To keep the rate-limiting and IO impact from before, we use a sequential
transaction, so drives will still be backed up one after the other.
Signed-off-by: Stefan Reiter <s.reiter@proxmox.com>
---
pve-backup.c | 167 +++++++++++++++------------------------------------
1 file changed, 49 insertions(+), 118 deletions(-)
diff --git a/pve-backup.c b/pve-backup.c
index 2db4a62580..b52f4a9364 100644
--- a/pve-backup.c
+++ b/pve-backup.c
@@ -52,6 +52,7 @@ static struct PVEBackupState {
VmaWriter *vmaw;
ProxmoxBackupHandle *pbs;
GList *di_list;
+ JobTxn *txn;
QemuMutex backup_mutex;
CoMutex dump_callback_mutex;
} backup_state;
@@ -71,32 +72,12 @@ typedef struct PVEBackupDevInfo {
size_t size;
uint64_t block_size;
uint8_t dev_id;
- bool completed;
char targetfile[PATH_MAX];
BdrvDirtyBitmap *bitmap;
BlockDriverState *target;
+ BlockJob *job;
} PVEBackupDevInfo;
-static void pvebackup_run_next_job(void);
-
-static BlockJob *
-lookup_active_block_job(PVEBackupDevInfo *di)
-{
- if (!di->completed && di->bs) {
- for (BlockJob *job = block_job_next(NULL); job; job = block_job_next(job)) {
- if (job->job.driver->job_type != JOB_TYPE_BACKUP) {
- continue;
- }
-
- BackupBlockJob *bjob = container_of(job, BackupBlockJob, common);
- if (bjob && bjob->source_bs == di->bs) {
- return job;
- }
- }
- }
- return NULL;
-}
-
static void pvebackup_propagate_error(Error *err)
{
qemu_mutex_lock(&backup_state.stat.lock);
@@ -272,18 +253,6 @@ static void coroutine_fn pvebackup_co_cleanup(void *unused)
if (local_err != NULL) {
pvebackup_propagate_error(local_err);
}
- } else {
- // on error or cancel we cannot ensure synchronization of dirty
- // bitmaps with backup server, so remove all and do full backup next
- GList *l = backup_state.di_list;
- while (l) {
- PVEBackupDevInfo *di = (PVEBackupDevInfo *)l->data;
- l = g_list_next(l);
-
- if (di->bitmap) {
- bdrv_release_dirty_bitmap(di->bitmap);
- }
- }
}
proxmox_backup_disconnect(backup_state.pbs);
@@ -322,8 +291,6 @@ static void pvebackup_complete_cb(void *opaque, int ret)
qemu_mutex_lock(&backup_state.backup_mutex);
- di->completed = true;
-
if (ret < 0) {
Error *local_err = NULL;
error_setg(&local_err, "job failed with err %d - %s", ret, strerror(-ret));
@@ -336,20 +303,17 @@ static void pvebackup_complete_cb(void *opaque, int ret)
block_on_coroutine_fn(pvebackup_complete_stream, di);
- // remove self from job queue
+ // remove self from job list
backup_state.di_list = g_list_remove(backup_state.di_list, di);
- if (di->bitmap && ret < 0) {
- // on error or cancel we cannot ensure synchronization of dirty
- // bitmaps with backup server, so remove all and do full backup next
- bdrv_release_dirty_bitmap(di->bitmap);
- }
-
g_free(di);
- qemu_mutex_unlock(&backup_state.backup_mutex);
+ /* call cleanup if we're the last job */
+ if (!g_list_first(backup_state.di_list)) {
+ block_on_coroutine_fn(pvebackup_co_cleanup, NULL);
+ }
- pvebackup_run_next_job();
+ qemu_mutex_unlock(&backup_state.backup_mutex);
}
static void pvebackup_cancel(void)
@@ -371,36 +335,28 @@ static void pvebackup_cancel(void)
proxmox_backup_abort(backup_state.pbs, "backup canceled");
}
- qemu_mutex_unlock(&backup_state.backup_mutex);
-
- for(;;) {
-
- BlockJob *next_job = NULL;
-
- qemu_mutex_lock(&backup_state.backup_mutex);
-
- GList *l = backup_state.di_list;
- while (l) {
- PVEBackupDevInfo *di = (PVEBackupDevInfo *)l->data;
- l = g_list_next(l);
+ /* it's enough to cancel one job in the transaction, the rest will follow
+ * automatically */
+ GList *bdi = g_list_first(backup_state.di_list);
+ BlockJob *cancel_job = bdi && bdi->data ?
+ ((PVEBackupDevInfo *)bdi->data)->job :
+ NULL;
- BlockJob *job = lookup_active_block_job(di);
- if (job != NULL) {
- next_job = job;
- break;
- }
- }
+ /* ref the job before releasing the mutex, just to be safe */
+ if (cancel_job) {
+ job_ref(&cancel_job->job);
+ }
- qemu_mutex_unlock(&backup_state.backup_mutex);
+ /* job_cancel_sync may enter the job, so we need to release the
+ * backup_mutex to avoid deadlock */
+ qemu_mutex_unlock(&backup_state.backup_mutex);
- if (next_job) {
- AioContext *aio_context = next_job->job.aio_context;
- aio_context_acquire(aio_context);
- job_cancel_sync(&next_job->job);
- aio_context_release(aio_context);
- } else {
- break;
- }
+ if (cancel_job) {
+ AioContext *aio_context = cancel_job->job.aio_context;
+ aio_context_acquire(aio_context);
+ job_cancel_sync(&cancel_job->job);
+ job_unref(&cancel_job->job);
+ aio_context_release(aio_context);
}
}
@@ -459,51 +415,19 @@ static int coroutine_fn pvebackup_co_add_config(
goto out;
}
-bool job_should_pause(Job *job);
-
-static void pvebackup_run_next_job(void)
-{
- assert(!qemu_in_coroutine());
-
- qemu_mutex_lock(&backup_state.backup_mutex);
-
- GList *l = backup_state.di_list;
- while (l) {
- PVEBackupDevInfo *di = (PVEBackupDevInfo *)l->data;
- l = g_list_next(l);
-
- BlockJob *job = lookup_active_block_job(di);
-
- if (job) {
- qemu_mutex_unlock(&backup_state.backup_mutex);
-
- AioContext *aio_context = job->job.aio_context;
- aio_context_acquire(aio_context);
-
- if (job_should_pause(&job->job)) {
- bool error_or_canceled = pvebackup_error_or_canceled();
- if (error_or_canceled) {
- job_cancel_sync(&job->job);
- } else {
- job_resume(&job->job);
- }
- }
- aio_context_release(aio_context);
- return;
- }
- }
-
- block_on_coroutine_fn(pvebackup_co_cleanup, NULL); // no more jobs, run cleanup
-
- qemu_mutex_unlock(&backup_state.backup_mutex);
-}
-
static bool create_backup_jobs(void) {
assert(!qemu_in_coroutine());
Error *local_err = NULL;
+ /* create job transaction to synchronize bitmap commit and cancel all
+ * jobs in case one errors */
+ if (backup_state.txn) {
+ job_txn_unref(backup_state.txn);
+ }
+ backup_state.txn = job_txn_new_seq();
+
/* create and start all jobs (paused state) */
GList *l = backup_state.di_list;
while (l) {
@@ -524,7 +448,7 @@ static bool create_backup_jobs(void) {
BlockJob *job = backup_job_create(
NULL, di->bs, di->target, backup_state.speed, sync_mode, di->bitmap,
bitmap_mode, false, NULL, BLOCKDEV_ON_ERROR_REPORT, BLOCKDEV_ON_ERROR_REPORT,
- JOB_DEFAULT, pvebackup_complete_cb, di, 1, NULL, &local_err);
+ JOB_DEFAULT, pvebackup_complete_cb, di, backup_state.txn, &local_err);
aio_context_release(aio_context);
@@ -536,7 +460,8 @@ static bool create_backup_jobs(void) {
pvebackup_propagate_error(create_job_err);
break;
}
- job_start(&job->job);
+
+ di->job = job;
bdrv_unref(di->target);
di->target = NULL;
@@ -554,6 +479,10 @@ static bool create_backup_jobs(void) {
bdrv_unref(di->target);
di->target = NULL;
}
+
+ if (di->job) {
+ job_unref(&di->job->job);
+ }
}
}
@@ -944,10 +873,6 @@ err:
PVEBackupDevInfo *di = (PVEBackupDevInfo *)l->data;
l = g_list_next(l);
- if (di->bitmap) {
- bdrv_release_dirty_bitmap(di->bitmap);
- }
-
if (di->target) {
bdrv_unref(di->target);
}
@@ -1036,9 +961,15 @@ UuidInfo *qmp_backup(
block_on_coroutine_fn(pvebackup_co_prepare, &task);
if (*errp == NULL) {
- create_backup_jobs();
+ bool errors = create_backup_jobs();
qemu_mutex_unlock(&backup_state.backup_mutex);
- pvebackup_run_next_job();
+
+ if (!errors) {
+ /* start the first job in the transaction
+ * note: this might directly enter the job, so we need to do this
+ * after unlocking the backup_mutex */
+ job_txn_start_seq(backup_state.txn);
+ }
} else {
qemu_mutex_unlock(&backup_state.backup_mutex);
}

View File

@@ -1,117 +0,0 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Fiona Ebner <f.ebner@proxmox.com>
Date: Mon, 29 Apr 2024 14:43:58 +0200
Subject: [PATCH] PVE backup: improve error when copy-before-write fails for
fleecing
With fleecing, failure for copy-before-write does not fail the guest
write, but only sets the snapshot error that is associated to the
copy-before-write filter, making further requests to the snapshot
access fail with EACCES, which then also fails the job. But that error
code is not the root cause of why the backup failed, so bubble up the
original snapshot error instead.
Reported-by: Friedrich Weber <f.weber@proxmox.com>
Signed-off-by: Fiona Ebner <f.ebner@proxmox.com>
Tested-by: Friedrich Weber <f.weber@proxmox.com>
---
block/copy-before-write.c | 18 ++++++++++++------
block/copy-before-write.h | 1 +
pve-backup.c | 9 +++++++++
3 files changed, 22 insertions(+), 6 deletions(-)
diff --git a/block/copy-before-write.c b/block/copy-before-write.c
index bba58326d7..50cc4c7aae 100644
--- a/block/copy-before-write.c
+++ b/block/copy-before-write.c
@@ -27,6 +27,7 @@
#include "qapi/qmp/qjson.h"
#include "sysemu/block-backend.h"
+#include "qemu/atomic.h"
#include "qemu/cutils.h"
#include "qapi/error.h"
#include "block/block_int.h"
@@ -74,7 +75,8 @@ typedef struct BDRVCopyBeforeWriteState {
* @snapshot_error is normally zero. But on first copy-before-write failure
* when @on_cbw_error == ON_CBW_ERROR_BREAK_SNAPSHOT, @snapshot_error takes
* value of this error (<0). After that all in-flight and further
- * snapshot-API requests will fail with that error.
+ * snapshot-API requests will fail with that error. To be accessed with
+ * atomics.
*/
int snapshot_error;
} BDRVCopyBeforeWriteState;
@@ -114,7 +116,7 @@ static coroutine_fn int cbw_do_copy_before_write(BlockDriverState *bs,
return 0;
}
- if (s->snapshot_error) {
+ if (qatomic_read(&s->snapshot_error)) {
return 0;
}
@@ -138,9 +140,7 @@ static coroutine_fn int cbw_do_copy_before_write(BlockDriverState *bs,
WITH_QEMU_LOCK_GUARD(&s->lock) {
if (ret < 0) {
assert(s->on_cbw_error == ON_CBW_ERROR_BREAK_SNAPSHOT);
- if (!s->snapshot_error) {
- s->snapshot_error = ret;
- }
+ qatomic_cmpxchg(&s->snapshot_error, 0, ret);
} else {
bdrv_set_dirty_bitmap(s->done_bitmap, off, end - off);
}
@@ -214,7 +214,7 @@ cbw_snapshot_read_lock(BlockDriverState *bs, int64_t offset, int64_t bytes,
QEMU_LOCK_GUARD(&s->lock);
- if (s->snapshot_error) {
+ if (qatomic_read(&s->snapshot_error)) {
g_free(req);
return NULL;
}
@@ -585,6 +585,12 @@ void bdrv_cbw_drop(BlockDriverState *bs)
bdrv_unref(bs);
}
+int bdrv_cbw_snapshot_error(BlockDriverState *bs)
+{
+ BDRVCopyBeforeWriteState *s = bs->opaque;
+ return qatomic_read(&s->snapshot_error);
+}
+
static void cbw_init(void)
{
bdrv_register(&bdrv_cbw_filter);
diff --git a/block/copy-before-write.h b/block/copy-before-write.h
index dc6cafe7fa..a27d2d7d9f 100644
--- a/block/copy-before-write.h
+++ b/block/copy-before-write.h
@@ -44,5 +44,6 @@ BlockDriverState *bdrv_cbw_append(BlockDriverState *source,
BlockCopyState **bcs,
Error **errp);
void bdrv_cbw_drop(BlockDriverState *bs);
+int bdrv_cbw_snapshot_error(BlockDriverState *bs);
#endif /* COPY_BEFORE_WRITE_H */
diff --git a/pve-backup.c b/pve-backup.c
index 7cc1dd3724..07709aa350 100644
--- a/pve-backup.c
+++ b/pve-backup.c
@@ -379,6 +379,15 @@ static void pvebackup_complete_cb(void *opaque, int ret)
di->fleecing.snapshot_access = NULL;
}
if (di->fleecing.cbw) {
+ /*
+ * With fleecing, failure for cbw does not fail the guest write, but only sets the snapshot
+ * error, making further requests to the snapshot fail with EACCES, which then also fail the
+ * job. But that code is not the root cause and just confusing, so update it.
+ */
+ int snapshot_error = bdrv_cbw_snapshot_error(di->fleecing.cbw);
+ if (di->completed_ret == -EACCES && snapshot_error) {
+ di->completed_ret = snapshot_error;
+ }
bdrv_cbw_drop(di->fleecing.cbw);
di->fleecing.cbw = NULL;
}

View File

@@ -0,0 +1,381 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Stefan Reiter <s.reiter@proxmox.com>
Date: Mon, 28 Sep 2020 13:40:51 +0200
Subject: [PATCH] PVE-Backup: Use more coroutines and don't block on finishing
proxmox_backup_co_finish is already async, but previously we would wait
for the coroutine using block_on_coroutine_fn(). Avoid this by
scheduling pvebackup_co_complete_stream (and thus pvebackup_co_cleanup)
as a real coroutine when calling from pvebackup_complete_cb. This is ok,
since complete_stream uses the backup_mutex internally to synchronize,
and other streams can happily continue writing in the meantime anyway.
To accomodate, backup_mutex is converted to a CoMutex. This means
converting every user to a coroutine. This is not just useful here, but
will come in handy once this series[0] is merged, and QMP calls can be
yield-able coroutines too. Then we can also finally get rid of
block_on_coroutine_fn.
Cases of aio_context_acquire/release from within what is now a coroutine
are changed to aio_co_reschedule_self, which works since a running
coroutine always holds the aio lock for the context it is running in.
job_cancel_sync is called from a BH since it can't be run from a
coroutine (uses AIO_WAIT_WHILE internally).
Same thing for create_backup_jobs, which is converted to a BH too.
To communicate the finishing state, a new property is introduced to
query-backup: 'finishing'. A new state is explicitly not used, since
that would break compatibility with older qemu-server versions.
[0] https://lists.gnu.org/archive/html/qemu-devel/2020-09/msg03515.html
Signed-off-by: Stefan Reiter <s.reiter@proxmox.com>
---
pve-backup.c | 148 ++++++++++++++++++++++++++-----------------
qapi/block-core.json | 5 +-
2 files changed, 95 insertions(+), 58 deletions(-)
diff --git a/pve-backup.c b/pve-backup.c
index b52f4a9364..4402c0cb17 100644
--- a/pve-backup.c
+++ b/pve-backup.c
@@ -33,7 +33,9 @@ const char *PBS_BITMAP_NAME = "pbs-incremental-dirty-bitmap";
static struct PVEBackupState {
struct {
- // Everithing accessed from qmp_backup_query command is protected using lock
+ // Everything accessed from qmp_backup_query command is protected using
+ // this lock. Do NOT hold this lock for long times, as it is sometimes
+ // acquired from coroutines, and thus any wait time may block the guest.
QemuMutex lock;
Error *error;
time_t start_time;
@@ -47,20 +49,21 @@ static struct PVEBackupState {
size_t reused;
size_t zero_bytes;
GList *bitmap_list;
+ bool finishing;
} stat;
int64_t speed;
VmaWriter *vmaw;
ProxmoxBackupHandle *pbs;
GList *di_list;
JobTxn *txn;
- QemuMutex backup_mutex;
+ CoMutex backup_mutex;
CoMutex dump_callback_mutex;
} backup_state;
static void pvebackup_init(void)
{
qemu_mutex_init(&backup_state.stat.lock);
- qemu_mutex_init(&backup_state.backup_mutex);
+ qemu_co_mutex_init(&backup_state.backup_mutex);
qemu_co_mutex_init(&backup_state.dump_callback_mutex);
}
@@ -72,6 +75,7 @@ typedef struct PVEBackupDevInfo {
size_t size;
uint64_t block_size;
uint8_t dev_id;
+ int completed_ret; // INT_MAX if not completed
char targetfile[PATH_MAX];
BdrvDirtyBitmap *bitmap;
BlockDriverState *target;
@@ -227,12 +231,12 @@ pvebackup_co_dump_vma_cb(
}
// assumes the caller holds backup_mutex
-static void coroutine_fn pvebackup_co_cleanup(void *unused)
+static void coroutine_fn pvebackup_co_cleanup(void)
{
assert(qemu_in_coroutine());
qemu_mutex_lock(&backup_state.stat.lock);
- backup_state.stat.end_time = time(NULL);
+ backup_state.stat.finishing = true;
qemu_mutex_unlock(&backup_state.stat.lock);
if (backup_state.vmaw) {
@@ -261,12 +265,29 @@ static void coroutine_fn pvebackup_co_cleanup(void *unused)
g_list_free(backup_state.di_list);
backup_state.di_list = NULL;
+
+ qemu_mutex_lock(&backup_state.stat.lock);
+ backup_state.stat.end_time = time(NULL);
+ backup_state.stat.finishing = false;
+ qemu_mutex_unlock(&backup_state.stat.lock);
}
-// assumes the caller holds backup_mutex
-static void coroutine_fn pvebackup_complete_stream(void *opaque)
+static void coroutine_fn pvebackup_co_complete_stream(void *opaque)
{
PVEBackupDevInfo *di = opaque;
+ int ret = di->completed_ret;
+
+ qemu_co_mutex_lock(&backup_state.backup_mutex);
+
+ if (ret < 0) {
+ Error *local_err = NULL;
+ error_setg(&local_err, "job failed with err %d - %s", ret, strerror(-ret));
+ pvebackup_propagate_error(local_err);
+ }
+
+ di->bs = NULL;
+
+ assert(di->target == NULL);
bool error_or_canceled = pvebackup_error_or_canceled();
@@ -281,27 +302,6 @@ static void coroutine_fn pvebackup_complete_stream(void *opaque)
pvebackup_propagate_error(local_err);
}
}
-}
-
-static void pvebackup_complete_cb(void *opaque, int ret)
-{
- assert(!qemu_in_coroutine());
-
- PVEBackupDevInfo *di = opaque;
-
- qemu_mutex_lock(&backup_state.backup_mutex);
-
- if (ret < 0) {
- Error *local_err = NULL;
- error_setg(&local_err, "job failed with err %d - %s", ret, strerror(-ret));
- pvebackup_propagate_error(local_err);
- }
-
- di->bs = NULL;
-
- assert(di->target == NULL);
-
- block_on_coroutine_fn(pvebackup_complete_stream, di);
// remove self from job list
backup_state.di_list = g_list_remove(backup_state.di_list, di);
@@ -310,21 +310,49 @@ static void pvebackup_complete_cb(void *opaque, int ret)
/* call cleanup if we're the last job */
if (!g_list_first(backup_state.di_list)) {
- block_on_coroutine_fn(pvebackup_co_cleanup, NULL);
+ pvebackup_co_cleanup();
}
- qemu_mutex_unlock(&backup_state.backup_mutex);
+ qemu_co_mutex_unlock(&backup_state.backup_mutex);
}
-static void pvebackup_cancel(void)
+static void pvebackup_complete_cb(void *opaque, int ret)
{
- assert(!qemu_in_coroutine());
+ PVEBackupDevInfo *di = opaque;
+ di->completed_ret = ret;
+
+ /*
+ * Schedule stream cleanup in async coroutine. close_image and finish might
+ * take a while, so we can't block on them here. This way it also doesn't
+ * matter if we're already running in a coroutine or not.
+ * Note: di is a pointer to an entry in the global backup_state struct, so
+ * it stays valid.
+ */
+ Coroutine *co = qemu_coroutine_create(pvebackup_co_complete_stream, di);
+ aio_co_enter(qemu_get_aio_context(), co);
+}
+/*
+ * job_cancel(_sync) does not like to be called from coroutines, so defer to
+ * main loop processing via a bottom half.
+ */
+static void job_cancel_bh(void *opaque) {
+ CoCtxData *data = (CoCtxData*)opaque;
+ Job *job = (Job*)data->data;
+ AioContext *job_ctx = job->aio_context;
+ aio_context_acquire(job_ctx);
+ job_cancel_sync(job);
+ aio_context_release(job_ctx);
+ aio_co_enter(data->ctx, data->co);
+}
+
+static void coroutine_fn pvebackup_co_cancel(void *opaque)
+{
Error *cancel_err = NULL;
error_setg(&cancel_err, "backup canceled");
pvebackup_propagate_error(cancel_err);
- qemu_mutex_lock(&backup_state.backup_mutex);
+ qemu_co_mutex_lock(&backup_state.backup_mutex);
if (backup_state.vmaw) {
/* make sure vma writer does not block anymore */
@@ -342,27 +370,22 @@ static void pvebackup_cancel(void)
((PVEBackupDevInfo *)bdi->data)->job :
NULL;
- /* ref the job before releasing the mutex, just to be safe */
if (cancel_job) {
- job_ref(&cancel_job->job);
+ CoCtxData data = {
+ .ctx = qemu_get_current_aio_context(),
+ .co = qemu_coroutine_self(),
+ .data = &cancel_job->job,
+ };
+ aio_bh_schedule_oneshot(data.ctx, job_cancel_bh, &data);
+ qemu_coroutine_yield();
}
- /* job_cancel_sync may enter the job, so we need to release the
- * backup_mutex to avoid deadlock */
- qemu_mutex_unlock(&backup_state.backup_mutex);
-
- if (cancel_job) {
- AioContext *aio_context = cancel_job->job.aio_context;
- aio_context_acquire(aio_context);
- job_cancel_sync(&cancel_job->job);
- job_unref(&cancel_job->job);
- aio_context_release(aio_context);
- }
+ qemu_co_mutex_unlock(&backup_state.backup_mutex);
}
void qmp_backup_cancel(Error **errp)
{
- pvebackup_cancel();
+ block_on_coroutine_fn(pvebackup_co_cancel, NULL);
}
// assumes the caller holds backup_mutex
@@ -415,6 +438,14 @@ static int coroutine_fn pvebackup_co_add_config(
goto out;
}
+/*
+ * backup_job_create can *not* be run from a coroutine (and requires an
+ * acquired AioContext), so this can't either.
+ * This does imply that this function cannot run with backup_mutex acquired.
+ * That is ok because it is only ever called between setting up the backup_state
+ * struct and starting the jobs, and from within a QMP call. This means that no
+ * other QMP call can interrupt, and no background job is running yet.
+ */
static bool create_backup_jobs(void) {
assert(!qemu_in_coroutine());
@@ -523,11 +554,12 @@ typedef struct QmpBackupTask {
UuidInfo *result;
} QmpBackupTask;
-// assumes the caller holds backup_mutex
static void coroutine_fn pvebackup_co_prepare(void *opaque)
{
assert(qemu_in_coroutine());
+ qemu_co_mutex_lock(&backup_state.backup_mutex);
+
QmpBackupTask *task = opaque;
task->result = NULL; // just to be sure
@@ -548,8 +580,9 @@ static void coroutine_fn pvebackup_co_prepare(void *opaque)
const char *firewall_name = "qemu-server.fw";
if (backup_state.di_list) {
- error_set(task->errp, ERROR_CLASS_GENERIC_ERROR,
+ error_set(task->errp, ERROR_CLASS_GENERIC_ERROR,
"previous backup not finished");
+ qemu_co_mutex_unlock(&backup_state.backup_mutex);
return;
}
@@ -616,6 +649,8 @@ static void coroutine_fn pvebackup_co_prepare(void *opaque)
}
di->size = size;
total += size;
+
+ di->completed_ret = INT_MAX;
}
uuid_generate(uuid);
@@ -847,6 +882,7 @@ static void coroutine_fn pvebackup_co_prepare(void *opaque)
backup_state.stat.dirty = total - backup_state.stat.reused;
backup_state.stat.transferred = 0;
backup_state.stat.zero_bytes = 0;
+ backup_state.stat.finishing = false;
qemu_mutex_unlock(&backup_state.stat.lock);
@@ -861,6 +897,8 @@ static void coroutine_fn pvebackup_co_prepare(void *opaque)
uuid_info->UUID = uuid_str;
task->result = uuid_info;
+
+ qemu_co_mutex_unlock(&backup_state.backup_mutex);
return;
err_mutex:
@@ -903,6 +941,8 @@ err:
}
task->result = NULL;
+
+ qemu_co_mutex_unlock(&backup_state.backup_mutex);
return;
}
@@ -956,22 +996,15 @@ UuidInfo *qmp_backup(
.errp = errp,
};
- qemu_mutex_lock(&backup_state.backup_mutex);
-
block_on_coroutine_fn(pvebackup_co_prepare, &task);
if (*errp == NULL) {
bool errors = create_backup_jobs();
- qemu_mutex_unlock(&backup_state.backup_mutex);
if (!errors) {
- /* start the first job in the transaction
- * note: this might directly enter the job, so we need to do this
- * after unlocking the backup_mutex */
+ // start the first job in the transaction
job_txn_start_seq(backup_state.txn);
}
- } else {
- qemu_mutex_unlock(&backup_state.backup_mutex);
}
return task.result;
@@ -1025,6 +1058,7 @@ BackupStatus *qmp_query_backup(Error **errp)
info->transferred = backup_state.stat.transferred;
info->has_reused = true;
info->reused = backup_state.stat.reused;
+ info->finishing = backup_state.stat.finishing;
qemu_mutex_unlock(&backup_state.stat.lock);
diff --git a/qapi/block-core.json b/qapi/block-core.json
index 03fc0af99b..29650896e2 100644
--- a/qapi/block-core.json
+++ b/qapi/block-core.json
@@ -784,12 +784,15 @@
#
# @uuid: uuid for this backup job
#
+# @finishing: if status='active' and finishing=true, then the backup process is
+# waiting for the target to finish.
+#
##
{ 'struct': 'BackupStatus',
'data': {'*status': 'str', '*errmsg': 'str', '*total': 'int', '*dirty': 'int',
'*transferred': 'int', '*zero-bytes': 'int', '*reused': 'int',
'*start-time': 'int', '*end-time': 'int',
- '*backup-file': 'str', '*uuid': 'str' } }
+ '*backup-file': 'str', '*uuid': 'str', 'finishing': 'bool' } }
##
# @BackupFormat:

View File

@@ -0,0 +1,187 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Stefan Reiter <s.reiter@proxmox.com>
Date: Thu, 22 Oct 2020 17:01:07 +0200
Subject: [PATCH] PVE: fix and clean up error handling for create_backup_jobs
No more weird bool returns, just the standard "errp" format used
everywhere else too. With this, if backup_job_create fails, the error
message is actually returned over QMP and can be shown to the user.
To facilitate correct cleanup on such an error, we call
create_backup_jobs as a bottom half directly from pvebackup_co_prepare.
This additionally allows us to actually hold the backup_mutex during
operation.
Also add a job_cancel_sync before job_unref, since a job must be in
STATUS_NULL to be deleted by unref, which could trigger an assert
before.
Signed-off-by: Stefan Reiter <s.reiter@proxmox.com>
---
pve-backup.c | 79 +++++++++++++++++++++++++++++++++++-----------------
1 file changed, 54 insertions(+), 25 deletions(-)
diff --git a/pve-backup.c b/pve-backup.c
index 4402c0cb17..c7cde0fb0e 100644
--- a/pve-backup.c
+++ b/pve-backup.c
@@ -50,6 +50,7 @@ static struct PVEBackupState {
size_t zero_bytes;
GList *bitmap_list;
bool finishing;
+ bool starting;
} stat;
int64_t speed;
VmaWriter *vmaw;
@@ -277,6 +278,16 @@ static void coroutine_fn pvebackup_co_complete_stream(void *opaque)
PVEBackupDevInfo *di = opaque;
int ret = di->completed_ret;
+ qemu_mutex_lock(&backup_state.stat.lock);
+ bool starting = backup_state.stat.starting;
+ qemu_mutex_unlock(&backup_state.stat.lock);
+ if (starting) {
+ /* in 'starting' state, no tasks have been run yet, meaning we can (and
+ * must) skip all cleanup, as we don't know what has and hasn't been
+ * initialized yet. */
+ return;
+ }
+
qemu_co_mutex_lock(&backup_state.backup_mutex);
if (ret < 0) {
@@ -441,15 +452,15 @@ static int coroutine_fn pvebackup_co_add_config(
/*
* backup_job_create can *not* be run from a coroutine (and requires an
* acquired AioContext), so this can't either.
- * This does imply that this function cannot run with backup_mutex acquired.
- * That is ok because it is only ever called between setting up the backup_state
- * struct and starting the jobs, and from within a QMP call. This means that no
- * other QMP call can interrupt, and no background job is running yet.
+ * The caller is responsible that backup_mutex is held nonetheless.
*/
-static bool create_backup_jobs(void) {
+static void create_backup_jobs_bh(void *opaque) {
assert(!qemu_in_coroutine());
+ CoCtxData *data = (CoCtxData*)opaque;
+ Error **errp = (Error**)data->data;
+
Error *local_err = NULL;
/* create job transaction to synchronize bitmap commit and cancel all
@@ -483,24 +494,19 @@ static bool create_backup_jobs(void) {
aio_context_release(aio_context);
- if (!job || local_err != NULL) {
- Error *create_job_err = NULL;
- error_setg(&create_job_err, "backup_job_create failed: %s",
- local_err ? error_get_pretty(local_err) : "null");
+ di->job = job;
- pvebackup_propagate_error(create_job_err);
+ if (!job || local_err) {
+ error_setg(errp, "backup_job_create failed: %s",
+ local_err ? error_get_pretty(local_err) : "null");
break;
}
- di->job = job;
-
bdrv_unref(di->target);
di->target = NULL;
}
- bool errors = pvebackup_error_or_canceled();
-
- if (errors) {
+ if (*errp) {
l = backup_state.di_list;
while (l) {
PVEBackupDevInfo *di = (PVEBackupDevInfo *)l->data;
@@ -512,12 +518,17 @@ static bool create_backup_jobs(void) {
}
if (di->job) {
+ AioContext *ctx = di->job->job.aio_context;
+ aio_context_acquire(ctx);
+ job_cancel_sync(&di->job->job);
job_unref(&di->job->job);
+ aio_context_release(ctx);
}
}
}
- return errors;
+ /* return */
+ aio_co_enter(data->ctx, data->co);
}
typedef struct QmpBackupTask {
@@ -883,6 +894,7 @@ static void coroutine_fn pvebackup_co_prepare(void *opaque)
backup_state.stat.transferred = 0;
backup_state.stat.zero_bytes = 0;
backup_state.stat.finishing = false;
+ backup_state.stat.starting = true;
qemu_mutex_unlock(&backup_state.stat.lock);
@@ -898,7 +910,32 @@ static void coroutine_fn pvebackup_co_prepare(void *opaque)
task->result = uuid_info;
+ /* Run create_backup_jobs_bh outside of coroutine (in BH) but keep
+ * backup_mutex locked. This is fine, a CoMutex can be held across yield
+ * points, and we'll release it as soon as the BH reschedules us.
+ */
+ CoCtxData waker = {
+ .co = qemu_coroutine_self(),
+ .ctx = qemu_get_current_aio_context(),
+ .data = &local_err,
+ };
+ aio_bh_schedule_oneshot(waker.ctx, create_backup_jobs_bh, &waker);
+ qemu_coroutine_yield();
+
+ if (local_err) {
+ error_propagate(task->errp, local_err);
+ goto err;
+ }
+
qemu_co_mutex_unlock(&backup_state.backup_mutex);
+
+ qemu_mutex_lock(&backup_state.stat.lock);
+ backup_state.stat.starting = false;
+ qemu_mutex_unlock(&backup_state.stat.lock);
+
+ /* start the first job in the transaction */
+ job_txn_start_seq(backup_state.txn);
+
return;
err_mutex:
@@ -921,6 +958,7 @@ err:
g_free(di);
}
g_list_free(di_list);
+ backup_state.di_list = NULL;
if (devs) {
g_strfreev(devs);
@@ -998,15 +1036,6 @@ UuidInfo *qmp_backup(
block_on_coroutine_fn(pvebackup_co_prepare, &task);
- if (*errp == NULL) {
- bool errors = create_backup_jobs();
-
- if (!errors) {
- // start the first job in the transaction
- job_txn_start_seq(backup_state.txn);
- }
- }
-
return task.result;
}

View File

@@ -0,0 +1,33 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Stefan Reiter <s.reiter@proxmox.com>
Date: Thu, 22 Oct 2020 17:34:17 +0200
Subject: [PATCH] migration/block-dirty-bitmap: fix larger granularity bitmaps
sectors_per_chunk is a 64 bit integer, but the calculation would be done
in 32 bits, leading to an overflow for coarse bitmap granularities.
If that results in the value 0, it leads to a hang where no progress is
made but send_bitmap_bits is constantly called with nr_sectors being 0.
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Stefan Reiter <s.reiter@proxmox.com>
---
migration/block-dirty-bitmap.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/migration/block-dirty-bitmap.c b/migration/block-dirty-bitmap.c
index 784330ebe1..5bf0d9fbc6 100644
--- a/migration/block-dirty-bitmap.c
+++ b/migration/block-dirty-bitmap.c
@@ -334,8 +334,9 @@ static int add_bitmaps_to_list(DBMSaveState *s, BlockDriverState *bs,
dbms->node_name = bs_name;
dbms->bitmap = bitmap;
dbms->total_sectors = bdrv_nb_sectors(bs);
- dbms->sectors_per_chunk = CHUNK_SIZE * 8 *
+ dbms->sectors_per_chunk = CHUNK_SIZE * 8LLU *
bdrv_dirty_bitmap_granularity(bitmap) >> BDRV_SECTOR_BITS;
+ assert(dbms->sectors_per_chunk != 0);
if (bdrv_dirty_bitmap_enabled(bitmap)) {
dbms->flags |= DIRTY_BITMAP_MIG_START_FLAG_ENABLED;
}

View File

@@ -12,24 +12,21 @@ Also add a flag to query-proxmox-support so qemu-server can determine if
safe migration is possible and makes sense.
Signed-off-by: Stefan Reiter <s.reiter@proxmox.com>
Signed-off-by: Thomas Lamprecht <t.lamprecht@proxmox.com>
[FE: split up state_pending for 8.0]
Signed-off-by: Fiona Ebner <f.ebner@proxmox.com>
---
include/migration/misc.h | 3 ++
migration/meson.build | 2 +
migration/migration.c | 1 +
migration/pbs-state.c | 104 +++++++++++++++++++++++++++++++++++++++
migration/Makefile.objs | 1 +
migration/pbs-state.c | 106 +++++++++++++++++++++++++++++++++++++++
pve-backup.c | 1 +
qapi/block-core.json | 6 +++
6 files changed, 117 insertions(+)
softmmu/vl.c | 1 +
6 files changed, 118 insertions(+)
create mode 100644 migration/pbs-state.c
diff --git a/include/migration/misc.h b/include/migration/misc.h
index c9e200f4eb..12c99ebc69 100644
index 34e7d75713..f83816dd3c 100644
--- a/include/migration/misc.h
+++ b/include/migration/misc.h
@@ -117,4 +117,7 @@ bool migration_in_bg_snapshot(void);
@@ -75,4 +75,7 @@ bool migration_in_incoming_postcopy(void);
/* migration/block-dirty-bitmap.c */
void dirty_bitmap_mig_init(void);
@@ -37,38 +34,24 @@ index c9e200f4eb..12c99ebc69 100644
+void pbs_state_mig_init(void);
+
#endif
diff --git a/migration/meson.build b/migration/meson.build
index 800f12a60d..35a4306183 100644
--- a/migration/meson.build
+++ b/migration/meson.build
@@ -7,7 +7,9 @@ migration_files = files(
'vmstate.c',
'qemu-file.c',
'yank_functions.c',
+ 'pbs-state.c',
)
+system_ss.add(libproxmox_backup_qemu)
diff --git a/migration/Makefile.objs b/migration/Makefile.objs
index 0fc619e380..20b3792599 100644
--- a/migration/Makefile.objs
+++ b/migration/Makefile.objs
@@ -9,6 +9,7 @@ common-obj-y += qjson.o
common-obj-y += block-dirty-bitmap.o
common-obj-y += multifd.o
common-obj-y += multifd-zlib.o
+common-obj-y += pbs-state.o
common-obj-$(CONFIG_ZSTD) += multifd-zstd.o
system_ss.add(files(
'block-dirty-bitmap.c',
diff --git a/migration/migration.c b/migration/migration.c
index 86bf76e925..b8d7e471a4 100644
--- a/migration/migration.c
+++ b/migration/migration.c
@@ -239,6 +239,7 @@ void migration_object_init(void)
blk_mig_init();
ram_mig_init();
dirty_bitmap_mig_init();
+ pbs_state_mig_init();
}
typedef struct {
common-obj-$(CONFIG_RDMA) += rdma.o
diff --git a/migration/pbs-state.c b/migration/pbs-state.c
new file mode 100644
index 0000000000..887e998b9e
index 0000000000..29f2b3860d
--- /dev/null
+++ b/migration/pbs-state.c
@@ -0,0 +1,104 @@
@@ -0,0 +1,106 @@
+/*
+ * PBS (dirty-bitmap) state migration
+ */
@@ -87,8 +70,11 @@ index 0000000000..887e998b9e
+/* state is accessed via this static variable directly, 'opaque' is NULL */
+static PBSState pbs_state;
+
+static void pbs_state_pending(void *opaque, uint64_t *must_precopy,
+ uint64_t *can_postcopy)
+static void pbs_state_save_pending(QEMUFile *f, void *opaque,
+ uint64_t max_size,
+ uint64_t *res_precopy_only,
+ uint64_t *res_compatible,
+ uint64_t *res_postcopy_only)
+{
+ /* we send everything in save_setup, so nothing is ever pending */
+}
@@ -158,8 +144,7 @@ index 0000000000..887e998b9e
+static SaveVMHandlers savevm_pbs_state_handlers = {
+ .save_setup = pbs_state_save_setup,
+ .has_postcopy = pbs_state_has_postcopy,
+ .state_pending_exact = pbs_state_pending,
+ .state_pending_estimate = pbs_state_pending,
+ .save_live_pending = pbs_state_save_pending,
+ .is_active_iterate = pbs_state_is_active_iterate,
+ .load_state = pbs_state_load,
+ .is_active = pbs_state_is_active,
@@ -174,38 +159,48 @@ index 0000000000..887e998b9e
+ NULL);
+}
diff --git a/pve-backup.c b/pve-backup.c
index 9c13a92623..9d480a8eec 100644
index c7cde0fb0e..f65f1dda26 100644
--- a/pve-backup.c
+++ b/pve-backup.c
@@ -1091,6 +1091,7 @@ ProxmoxSupportStatus *qmp_query_proxmox_support(Error **errp)
@@ -1130,5 +1130,6 @@ ProxmoxSupportStatus *qmp_query_proxmox_support(Error **errp)
ret->pbs_library_version = g_strdup(proxmox_backup_qemu_version());
ret->pbs_dirty_bitmap = true;
ret->pbs_dirty_bitmap_savevm = true;
+ ret->pbs_dirty_bitmap_migration = true;
ret->query_bitmap_info = true;
ret->pbs_masterkey = true;
ret->backup_max_workers = true;
+ ret->pbs_dirty_bitmap_migration = true;
return ret;
}
diff --git a/qapi/block-core.json b/qapi/block-core.json
index fc32ff9957..f516d8e95a 100644
index 29650896e2..0da4b35028 100644
--- a/qapi/block-core.json
+++ b/qapi/block-core.json
@@ -1004,6 +1004,11 @@
# @pbs-dirty-bitmap-savevm: True if 'dirty-bitmaps' migration capability can
# safely be set for savevm-async.
@@ -890,12 +890,18 @@
#
# @query-bitmap-info: True if the 'query-pbs-bitmap-info' QMP call is supported.
#
+# @pbs-dirty-bitmap-migration: True if safe migration of dirty-bitmaps including
+# PBS state is supported. Enabling 'dirty-bitmaps'
+# migration cap if this is false/unset may lead
+# to crashes on migration!
+#
# @pbs-masterkey: True if the QMP backup call supports the 'master_keyfile'
# parameter.
# @pbs-library-version: Running version of libproxmox-backup-qemu0 library.
#
@@ -1017,6 +1022,7 @@
##
{ 'struct': 'ProxmoxSupportStatus',
'data': { 'pbs-dirty-bitmap': 'bool',
'query-bitmap-info': 'bool',
'pbs-dirty-bitmap-savevm': 'bool',
+ 'pbs-dirty-bitmap-migration': 'bool',
'pbs-masterkey': 'bool',
'pbs-library-version': 'str',
'backup-max-workers': 'bool' } }
'pbs-library-version': 'str' } }
##
diff --git a/softmmu/vl.c b/softmmu/vl.c
index 16aa2186b0..88b13871fd 100644
--- a/softmmu/vl.c
+++ b/softmmu/vl.c
@@ -4288,6 +4288,7 @@ void qemu_init(int argc, char **argv, char **envp)
blk_mig_init();
ram_mig_init();
dirty_bitmap_mig_init();
+ pbs_state_mig_init();
qemu_opts_foreach(qemu_find_opts("mon"),
mon_init_func, NULL, &error_fatal);

View File

@@ -13,16 +13,15 @@ that are obviously marked as "busy", which would cause none at all to be
transferred.
Signed-off-by: Stefan Reiter <s.reiter@proxmox.com>
Signed-off-by: Thomas Lamprecht <t.lamprecht@proxmox.com>
---
migration/block-dirty-bitmap.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/migration/block-dirty-bitmap.c b/migration/block-dirty-bitmap.c
index 2708abf3d7..fb17c01308 100644
index 5bf0d9fbc6..1070c19181 100644
--- a/migration/block-dirty-bitmap.c
+++ b/migration/block-dirty-bitmap.c
@@ -540,7 +540,7 @@ static int add_bitmaps_to_list(DBMSaveState *s, BlockDriverState *bs,
@@ -323,7 +323,7 @@ static int add_bitmaps_to_list(DBMSaveState *s, BlockDriverState *bs,
if (bdrv_dirty_bitmap_check(bitmap, BDRV_BITMAP_DEFAULT, &local_err)) {
error_report_err(local_err);
@@ -30,4 +29,4 @@ index 2708abf3d7..fb17c01308 100644
+ continue;
}
if (bitmap_aliases) {
bdrv_ref(bs);

View File

@@ -0,0 +1,39 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Stefan Reiter <s.reiter@proxmox.com>
Date: Mon, 4 Jan 2021 14:49:14 +0100
Subject: [PATCH] PVE: fix aborting multiple 'CREATED' jobs in sequential
transaction
Deadlocks could occur in the AIO_WAIT_WHILE loop in job_finish_sync,
which would wait for CREATED but not running jobs to complete, even
though job_enter is a no-op in that scenario. Mark offending jobs as
ABORTING immediately via job_update_rc if required.
Manifested itself in cancelling or failing backups with more than 2
drives.
Signed-off-by: Stefan Reiter <s.reiter@proxmox.com>
Tested-by: Mira Limbeck <m.limbeck@proxmox.com>
Signed-off-by: Wolfgang Bumiller <w.bumiller@proxmox.com>
---
job.c | 7 +++++++
1 file changed, 7 insertions(+)
diff --git a/job.c b/job.c
index 97ee97a192..51984e557c 100644
--- a/job.c
+++ b/job.c
@@ -1035,6 +1035,13 @@ int job_finish_sync(Job *job, void (*finish)(Job *, Error **errp), Error **errp)
return -EBUSY;
}
+ /* in a sequential transaction jobs with status CREATED can appear at time
+ * of cancelling, these have not begun work so job_enter won't do anything,
+ * let's ensure they are marked as ABORTING if required */
+ if (job->status == JOB_STATUS_CREATED && job->txn->sequential) {
+ job_update_rc(job);
+ }
+
AIO_WAIT_WHILE(job->aio_context,
(job_enter(job), !job_is_completed(job)));

102
debian/patches/series vendored
View File

@@ -1,32 +1,24 @@
extra/0001-monitor-qmp-fix-race-with-clients-disconnecting-earl.patch
extra/0002-scsi-megasas-Internal-cdbs-have-16-byte-length.patch
extra/0003-ide-avoid-potential-deadlock-when-draining-during-tr.patch
extra/0004-Revert-x86-acpi-workaround-Windows-not-handling-name.patch
extra/0005-block-copy-before-write-use-uint64_t-for-timeout-in-.patch
bitmap-mirror/0001-drive-mirror-add-support-for-sync-bitmap-mode-never.patch
bitmap-mirror/0002-drive-mirror-add-support-for-conditional-and-always-.patch
bitmap-mirror/0003-mirror-add-check-for-bitmap-mode-without-bitmap.patch
bitmap-mirror/0004-mirror-switch-to-bdrv_dirty_bitmap_merge_internal.patch
bitmap-mirror/0005-iotests-add-test-for-bitmap-mirror.patch
bitmap-mirror/0006-mirror-move-some-checks-to-qmp.patch
extra/0001-block-block-copy-always-align-copied-region-to-clust.patch
extra/0002-Revert-qemu-img-convert-Don-t-pre-zero-images.patch
extra/0003-usb-fix-setup_len-init-CVE-2020-14364.patch
pve/0001-PVE-Config-block-file-change-locking-default-to-off.patch
pve/0002-PVE-Config-Adjust-network-script-path-to-etc-kvm.patch
pve/0003-PVE-Config-set-the-CPU-model-to-kvm64-32-instead-of-.patch
pve/0004-PVE-Config-ui-spice-default-to-pve-certificates.patch
pve/0005-PVE-Config-glusterfs-no-default-logfile-if-daemonize.patch
pve/0006-PVE-Config-rbd-block-rbd-disable-rbd_cache_writethro.patch
pve/0007-PVE-Up-glusterfs-allow-partial-reads.patch
pve/0008-PVE-Up-qemu-img-return-success-on-info-without-snaps.patch
pve/0009-PVE-Up-qemu-img-dd-add-osize-and-read-from-to-stdin-.patch
pve/0010-PVE-Up-qemu-img-dd-add-isize-parameter.patch
pve/0011-PVE-Up-qemu-img-dd-add-n-skip_create.patch
pve/0012-qemu-img-dd-add-l-option-for-loading-a-snapshot.patch
pve/0013-PVE-virtio-balloon-improve-query-balloon.patch
pve/0014-PVE-qapi-modify-query-machines.patch
pve/0015-PVE-qapi-modify-spice-query.patch
pve/0016-PVE-add-IOChannel-implementation-for-savevm-async.patch
pve/0017-PVE-add-savevm-async-for-background-state-snapshots.patch
pve/0018-PVE-add-optional-buffer-size-to-QEMUFile.patch
pve/0005-PVE-Config-smm_available-false.patch
pve/0006-PVE-Config-glusterfs-no-default-logfile-if-daemonize.patch
pve/0007-PVE-Config-rbd-block-rbd-disable-rbd_cache_writethro.patch
pve/0008-PVE-Up-qmp-add-get_link_status.patch
pve/0009-PVE-Up-glusterfs-allow-partial-reads.patch
pve/0010-PVE-Up-qemu-img-return-success-on-info-without-snaps.patch
pve/0011-PVE-Up-qemu-img-dd-add-osize-and-read-from-to-stdin-.patch
pve/0012-PVE-Up-qemu-img-dd-add-isize-parameter.patch
pve/0013-PVE-Up-qemu-img-dd-add-n-skip_create.patch
pve/0014-PVE-virtio-balloon-improve-query-balloon.patch
pve/0015-PVE-qapi-modify-query-machines.patch
pve/0016-PVE-qapi-modify-spice-query.patch
pve/0017-PVE-internal-snapshot-async.patch
pve/0018-add-optional-buffer-size-to-QEMUFile.patch
pve/0019-PVE-block-add-the-zeroinit-block-driver-filter.patch
pve/0020-PVE-Add-dummy-id-command-line-parameter.patch
pve/0021-PVE-Config-Revert-target-i386-disable-LINT0-after-re.patch
@@ -34,30 +26,36 @@ pve/0022-PVE-Up-Config-file-posix-make-locking-optiono-on-cre.patch
pve/0023-PVE-monitor-disable-oob-capability.patch
pve/0024-PVE-Compat-4.0-used-balloon-qemu-4-0-config-size-fal.patch
pve/0025-PVE-Allow-version-code-in-machine-type.patch
pve/0026-block-backup-move-bcs-bitmap-initialization-to-job-c.patch
pve/0027-PVE-Backup-add-vma-backup-format-code.patch
pve/0028-PVE-Backup-add-backup-dump-block-driver.patch
pve/0029-PVE-Add-sequential-job-transaction-support.patch
pve/0030-PVE-Backup-Proxmox-backup-patches-for-QEMU.patch
pve/0031-PVE-Backup-pbs-restore-new-command-to-restore-from-p.patch
pve/0032-PVE-Add-PBS-block-driver-to-map-backup-archives-into.patch
pve/0033-PVE-redirect-stderr-to-journal-when-daemonized.patch
pve/0034-PVE-Migrate-dirty-bitmap-state-via-savevm.patch
pve/0035-migration-block-dirty-bitmap-migrate-other-bitmaps-e.patch
pve/0036-PVE-fall-back-to-open-iscsi-initiatorname.patch
pve/0037-PVE-block-stream-increase-chunk-size.patch
pve/0038-block-add-alloc-track-driver.patch
pve/0039-Revert-block-rbd-workaround-for-ceph-issue-53784.patch
pve/0040-Revert-block-rbd-fix-handling-of-holes-in-.bdrv_co_b.patch
pve/0041-Revert-block-rbd-implement-bdrv_co_block_status.patch
pve/0042-alloc-track-error-out-when-auto-remove-is-not-set.patch
pve/0043-alloc-track-avoid-seemingly-superfluous-child-permis.patch
pve/0044-block-copy-before-write-fix-permission.patch
pve/0045-block-copy-before-write-support-unligned-snapshot-di.patch
pve/0046-block-copy-before-write-create-block_copy-bitmap-in-.patch
pve/0047-qapi-blockdev-backup-add-discard-source-parameter.patch
pve/0048-copy-before-write-allow-specifying-minimum-cluster-s.patch
pve/0049-backup-add-minimum-cluster-size-to-performance-optio.patch
pve/0050-PVE-backup-add-fleecing-option.patch
pve/0051-PVE-backup-improve-error-when-copy-before-write-fail.patch
pve-qemu-9.0-vitastor.patch
pve/0026-PVE-Backup-add-vma-backup-format-code.patch
pve/0027-PVE-Backup-add-backup-dump-block-driver.patch
pve/0028-PVE-Backup-proxmox-backup-patches-for-qemu.patch
pve/0029-PVE-Backup-pbs-restore-new-command-to-restore-from-p.patch
pve/0030-PVE-Backup-avoid-coroutines-to-fix-AIO-freeze-cleanu.patch
pve/0031-drive-mirror-add-support-for-sync-bitmap-mode-never.patch
pve/0032-drive-mirror-add-support-for-conditional-and-always-.patch
pve/0033-mirror-add-check-for-bitmap-mode-without-bitmap.patch
pve/0034-mirror-switch-to-bdrv_dirty_bitmap_merge_internal.patch
pve/0035-iotests-add-test-for-bitmap-mirror.patch
pve/0036-mirror-move-some-checks-to-qmp.patch
pve/0037-PVE-Backup-Add-dirty-bitmap-tracking-for-incremental.patch
pve/0038-PVE-backup-rename-incremental-to-use-dirty-bitmap.patch
pve/0039-PVE-fixup-pbs-restore-API.patch
pve/0040-PVE-always-set-dirty-counter-for-non-incremental-bac.patch
pve/0041-PVE-use-proxmox_backup_check_incremental.patch
pve/0042-PVE-fixup-pbs-backup-add-compress-and-encrypt-option.patch
pve/0043-PVE-Add-PBS-block-driver-to-map-backup-archives-into.patch
pve/0044-PVE-add-query_proxmox_support-QMP-command.patch
pve/0045-pbs-fix-missing-crypt-and-compress-parameters.patch
pve/0046-PVE-handle-PBS-write-callback-with-big-blocks-correc.patch
pve/0047-PVE-add-zero-block-handling-to-PBS-dump-callback.patch
pve/0048-PVE-add-query-pbs-bitmap-info-QMP-call.patch
pve/0049-PVE-redirect-stderr-to-journal-when-daemonized.patch
pve/0050-PVE-Add-sequential-job-transaction-support.patch
pve/0051-PVE-Backup-Use-a-transaction-to-synchronize-job-stat.patch
pve/0052-PVE-Backup-Use-more-coroutines-and-don-t-block-on-fi.patch
pve/0053-PVE-fix-and-clean-up-error-handling-for-create_backu.patch
pve/0054-migration-block-dirty-bitmap-fix-larger-granularity-.patch
pve/0055-PVE-Migrate-dirty-bitmap-state-via-savevm.patch
pve/0056-migration-block-dirty-bitmap-migrate-other-bitmaps-e.patch
pve/0057-PVE-fix-aborting-multiple-CREATED-jobs-in-sequential.patch
pve-qemu-5.1-vitastor.patch

View File

@@ -1,6 +1,9 @@
# install the userspace utilities
vma usr/bin/
pbs-restore usr/bin/
debian/kvm-ifup etc/kvm/
debian/kvm-ifdown etc/kvm/
#install ovmf uefi rom
debian/OVMF_CODE-pure-efi.fd usr/share/kvm/
debian/OVMF_VARS-pure-efi.fd usr/share/kvm/
debian/kvm-ifdown etc/kvm/
# install the userspace utilities
debian/kvm-ifup etc/kvm/

View File

@@ -1,13 +1,16 @@
# also use aarch64 for 32 bit arm
usr/bin/qemu-system-aarch64 usr/bin/qemu-system-arm
usr/bin/qemu-system-x86_64 usr/bin/kvm
# qemu-system-i386 and qemu-system-x86_64 provides the same hardware emulation
usr/bin/qemu-system-x86_64 usr/bin/qemu-system-i386
# also use aarch64 for 32 bit arm
usr/bin/qemu-system-aarch64 usr/bin/qemu-system-arm
# upstream provides a qemu man page,
# we symlink to kvm for backward compatibility
# and to qemu-system-{i386,x86_64} to fullfill our 'Provides: qemu-system-x86'
usr/share/man/man1/qemu.1 usr/share/man/man1/kvm.1
usr/share/man/man1/qemu.1 usr/share/man/man1/qemu-system-aarch64.1
usr/share/man/man1/qemu.1 usr/share/man/man1/qemu-system-arm.1
usr/share/man/man1/qemu.1 usr/share/man/man1/qemu-system-i386.1
usr/share/man/man1/qemu.1 usr/share/man/man1/qemu-system-x86_64.1
usr/share/man/man1/qemu.1 usr/share/man/man1/qemu-system-arm.1
usr/share/man/man1/qemu.1 usr/share/man/man1/qemu-system-aarch64.1

Some files were not shown because too many files have changed in this diff Show More