Very clean rebase, only the +pve version handling needed manual fixing.
Drops two applied patches from extra/ and adds one new from upstream
(extra/0001*, fixes VNC over unix sockets) as well as 3 of my own for
allowing password changes on custom VNC displays again (as seen and
reviewed upstream, but not yet applied).
Signed-off-by: Stefan Reiter <s.reiter@proxmox.com>
same as the initial version sent to qemu-devel, it won't be the final
fix we plan to upstream but it should be enough band-aid to
workaround how PVE uses the QMP.
Signed-off-by: Stefan Reiter <s.reiter@proxmox.com>
[ Thomas: add a bit reasoning to commit message body ]
Signed-off-by: Thomas Lamprecht <t.lamprecht@proxmox.com>
This drops debian/patches/pve/0005-PVE-Config-smm_available-false.patch
(and renumbers the remaining patches)
From what I could gather, this patch was originally added
due to issues with old kernels. Now we have users which
seem to run into issues *with* the patch.
All this does is toggle an option, and it's available via a
qemu CLI option anyway, so if dropping this patch causes
issues for some people we can just add an option to
qemu-server & UI control smm explicitly.
Signed-off-by: Wolfgang Bumiller <w.bumiller@proxmox.com>
Cc: Alexandre Derumier <aderumier@odiso.com>
Tested-by: Stefan Reiter <s.reiter@proxmox.com>
Linux SCSI can throw spurious -EAGAIN in some corner cases in its
completion path, which will end up being the result in the completed
io_uring request.
Resubmitting such requests should allow block jobs to complete, even
if such spurious errors are encountered.
Signed-off-by: Fabian Ebner <f.ebner@proxmox.com>
Mostly minor changes, bigger ones summarized:
* QEMU's internal backup code now uses a new async system, which allows
parallel requests - the default max_workers settings is 64, I chose
less, since 64 put enough stress on QEMU that the guest became
practically unusable during the backup, and 16 still shows quite a
nice measureable performance improvement. Little code changes for us
though.
* 'malformed' QAPI parameters/functions are now a build error (i.e.
using '_' vs '-'), I chose to just whitelist our calls in the name of
backwards compatibility.
* monitor OOB race fix now uses the upstream variant, cherry-picked from
origin/master since it's not in 6.0 by default
* last patch fixes a bug with snapshot rollback related to the new yank
system
Signed-off-by: Stefan Reiter <s.reiter@proxmox.com>
cherry-picked cleanly from 6.0 development tree, fixes an issue with
resizing RBD drives (and reportedly also on krbd or potentially other
storage backends) with iothreads.
Signed-off-by: Stefan Reiter <s.reiter@proxmox.com>
See added patches for more info, overview:
0044: slightly increase PBS performance by reducing allocations
0045: slightly increase block-stream performance for Ceph
0046: don't crash with block-stream on RBD
0047: add alloc-track driver for live restore
Signed-off-by: Stefan Reiter <s.reiter@proxmox.com>
...instead of having them in the middle of the backup related patches.
These might (hopefully) become upstream at some point as well.
Signed-off-by: Stefan Reiter <s.reiter@proxmox.com>
Signed-off-by: Thomas Lamprecht <t.lamprecht@proxmox.com>
Lots of patches touched and some slight changes to the build process
since QEMU switched to meson as their build system. Functionality-wise
very little rebasing required.
New patches introduced:
* pve/0058: to fix VMA backups and clean up some code in general with
new 5.2 features now available to us (namely coroutine-enabled QMP).
* extra/0002: don't build man pages for guest agent when disabled
* extra/0003: fix live-migration with hugepages
* 0017 and 0018 are adjusted to fix snapshot abort and improve
snap performance a bit
Signed-off-by: Stefan Reiter <s.reiter@proxmox.com>
Fixes vma restore when the target is an iSCSI storage which expects that
initiatorname. Also avoids the need to always explicitly set the initiatorname
in PVE code, thus fixing moving efidisks from and to such iSCSI storages.
Signed-off-by: Fabian Ebner <f.ebner@proxmox.com>
With the transaction patches, patch 0026-PVE-Backup-modify-job-api.patch
is no longer necessary, so drop it and rebase all following patches on
top.
Signed-off-by: Stefan Reiter <s.reiter@proxmox.com>
Prints QEMU errors that occur *after* the "-daemonize" fork to the
systemd journal, instead of pushing them into /dev/null like before.
Signed-off-by: Stefan Reiter <s.reiter@proxmox.com>
No major semantic changes, mostly just deprecations and changed function
signatures. Drop the extra/ patches, as they have been applied upstream.
The added extra/ patch was accepted upstream[0] but has not been picked
up for 5.1. It is required for non-4M aligned backups to work with PBS.
[0] https://lists.gnu.org/archive/html/qemu-devel/2020-08/msg01671.html
Signed-off-by: Stefan Reiter <s.reiter@proxmox.com>
fixes an assertion failure in qemu network packet processing, which can
lead to DOS'ing the qemu process on the host. this affects 'e1000e' and
'vmxnet3' network devices.
patch is cherry-picked from the commit mentioned in the oss-security email.
more info on oss-security [0]
[0]: https://www.openwall.com/lists/oss-security/2020/08/10/1
Signed-off-by: Oguz Bektas <o.bektas@proxmox.com>
* rename "incremental" param to "use-dirty-bitmap", avoids confusion
as the backup can be incrementally also with that param set to
false.
* use new proxmox_backup_check_incremental
* fix setting dirty counter and adapt to new connect API semantic
Signed-off-by: Thomas Lamprecht <t.lamprecht@proxmox.com>
Move qemu_savevm_state_{header,setup} into the main loop and
the rest of the iteration into a coroutine. The former need
to lock the iothread (and we can't unlock it in the
coroutine), and the latter can't deal with being in a
separate thread, so a coroutine it must be.
Signed-off-by: Wolfgang Bumiller <w.bumiller@proxmox.com>
Release the lock on qemu_coroutine_yield, so coroutines don't
deadlock.
Originally-by: Stefan Reiter <s.reiter@proxmox.com>
Signed-off-by: Thomas Lamprecht <t.lamprecht@proxmox.com>
the first two patches were mistakenly left out during the 4.2 qemu
rebase.
also adds another patch for issue CVE-2019-14378 (heap-based BOF)
Signed-off-by: Oguz Bektas <o.bektas@proxmox.com>
The long overdue nice rebase+cleanup was done by Dietmar
Originally-by: Dietmar Maurer <dietmar@proxmox.com>
Signed-off-by: Thomas Lamprecht <t.lamprecht@proxmox.com>
original commits and email can be found here[0]
A out-of-bounds heap buffer access issue was found in the SLiRP
networking implementation of the QEMU emulator. It occurs in tcp_emu()
routine while emulating IRC and other protocols due to unsafe usage of
snprintf(3) function.
A user/process could use this flaw to crash the Qemu process on the host
resulting in DoS or potentially execute arbitrary code with privileges
of the QEMU process on the host.
[0]: https://seclists.org/oss-sec/2020/q1/64
Signed-off-by: Oguz Bektas <o.bektas@proxmox.com>
Signed-off-by: Thomas Lamprecht <t.lamprecht@proxmox.com>
oss-security email can be found here[0]
upstream commit here[1]
this effects our vncproxy. dominik and me tested if the issue is present
on our branch and it appears that it is.
in essence when we disconnect from a vnc connection, the memory isn't
free'd afterwards which causes the qemu process to use more and more
memory with each disconnect, which could lead to a dos scenario.
we tested the patch and it seems to mitigate the problem.
[0]: https://seclists.org/oss-sec/2020/q1/105
[1]: https://git.qemu.org/?p=qemu.git;a=commitdiff;h=6bf21f3d83e95bcc4ba35a7a07cc6655e8b010b0
Tested-by: Dominik Csapak <d.csapak@proxmox.com>
Signed-off-by: Oguz Bektas <o.bektas@proxmox.com>
Fabian Grünbichler