Add bdrv_co_block_status

Signed-off-by: Thomas Lamprecht <t.lamprecht@proxmox.com>

Makefile

@@ -49,7 +49,7 @@ update:
 
 .PHONY: upload
 upload: $(DEBS)
-	tar cf - ${DEBS} | ssh repoman@repo.proxmox.com upload --product pve --dist buster
+	tar cf - ${DEBS} | ssh repoman@repo.proxmox.com upload --product pve --dist bullseye
 
 .PHONY: distclean clean
 distclean: clean

debian/changelog

@@ -1,3 +1,174 @@
+pve-qemu-kvm (6.2.0-11+vitastor2) bullseye; urgency=medium
+
+  * Add bdrv_co_block_status implementation for QCOW2 export support
+
+ -- Vitaliy Filippov <vitalif@yourcmc.ru>  Fri, 13 Jan 2023 20:14:59 +0300
+
+pve-qemu-kvm (6.2.0-11+vitastor1) bullseye; urgency=medium
+
+  * Add Vitastor support
+
+ -- Vitaliy Filippov <vitalif@yourcmc.ru>  Thu, 14 Dec 2022 18:13:59 +0300
+
+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

debian/control

@@ -10,7 +10,9 @@ Build-Depends: autotools-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),
@@ -20,18 +22,22 @@ Build-Depends: autotools-dev,
                libnuma-dev,
                libpci-dev,
                libpixman-1-dev,
-               libproxmox-backup-qemu0-dev (>= 1.0.3-1),
+               libproxmox-backup-qemu0-dev (>= 1.3.0-1),
                librbd-dev (>= 0.48),
                libsdl1.2-dev,
                libseccomp-dev,
                libspice-protocol-dev (>= 0.12.14~),
                libspice-server-dev (>= 0.14.0~),
                libsystemd-dev,
+               liburing-dev,
                libusb-1.0-0-dev (>= 1.0.17-1),
                libusbredirparser-dev (>= 0.6-2),
+               libvirglrenderer-dev,
+               libzstd-dev,
                meson,
                python3-minimal,
                python3-sphinx,
+               python3-sphinx-rtd-theme,
                quilt,
                texi2html,
                texinfo,
@@ -43,7 +49,6 @@ 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),
@@ -54,14 +59,14 @@ Depends: ceph-common (>= 0.48),
          libiscsi4 (>= 1.12.0) | libiscsi7,
          libjemalloc2,
          libjpeg62-turbo,
-         libsdl1.2debian,
          libspice-server1 (>= 0.14.0~),
          libusb-1.0-0 (>= 1.0.17-1),
          libusbredirparser1 (>= 0.6-2),
          libuuid1,
-         numactl,
          ${misc:Depends},
          ${shlibs:Depends},
+Recommends: numactl
+Suggests: libgl1
 Conflicts: kvm,
            pve-kvm,
            pve-qemu-kvm-2.6.18,

debian/copyright

@@ -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

debian/patches/bitmap-mirror/0001-drive-mirror-add-support-for-sync-bitmap-mode-never.patch

@@ -26,16 +26,17 @@ 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>
 ---
- block/mirror.c              | 98 ++++++++++++++++++++++++++++++-------
- blockdev.c                  | 39 +++++++++++++--
- include/block/block_int.h   |  4 +-
- qapi/block-core.json        | 29 +++++++++--
- tests/test-block-iothread.c |  4 +-
+ block/mirror.c                   | 98 +++++++++++++++++++++++++-------
+ blockdev.c                       | 39 ++++++++++++-
+ include/block/block_int.h        |  4 +-
+ qapi/block-core.json             | 29 ++++++++--
+ tests/unit/test-block-iothread.c |  4 +-
  5 files changed, 145 insertions(+), 29 deletions(-)
 
 diff --git a/block/mirror.c b/block/mirror.c
-index 8e1ad6eceb..97843992c2 100644
+index efec2c7674..f7804638f9 100644
 --- a/block/mirror.c
 +++ b/block/mirror.c
 @@ -50,7 +50,7 @@ typedef struct MirrorBlockJob {
@@ -47,7 +48,7 @@ index 8e1ad6eceb..97843992c2 100644
      BlockMirrorBackingMode backing_mode;
      /* Whether the target image requires explicit zero-initialization */
      bool zero_target;
-@@ -65,6 +65,8 @@ typedef struct MirrorBlockJob {
+@@ -64,6 +64,8 @@ typedef struct MirrorBlockJob {
      size_t buf_size;
      int64_t bdev_length;
      unsigned long *cow_bitmap;
@@ -56,7 +57,7 @@ index 8e1ad6eceb..97843992c2 100644
      BdrvDirtyBitmap *dirty_bitmap;
      BdrvDirtyBitmapIter *dbi;
      uint8_t *buf;
-@@ -677,7 +679,8 @@ static int mirror_exit_common(Job *job)
+@@ -695,7 +697,8 @@ 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) {
@@ -66,7 +67,7 @@ index 8e1ad6eceb..97843992c2 100644
          BlockDriverState *unfiltered_target = bdrv_skip_filters(target_bs);
  
          if (bdrv_cow_bs(unfiltered_target) != backing) {
-@@ -774,6 +777,16 @@ static void mirror_abort(Job *job)
+@@ -800,6 +803,16 @@ static void mirror_abort(Job *job)
      assert(ret == 0);
  }
  
@@ -83,7 +84,7 @@ index 8e1ad6eceb..97843992c2 100644
  static void coroutine_fn mirror_throttle(MirrorBlockJob *s)
  {
      int64_t now = qemu_clock_get_ns(QEMU_CLOCK_REALTIME);
-@@ -955,7 +968,8 @@ static int coroutine_fn mirror_run(Job *job, Error **errp)
+@@ -979,7 +992,8 @@ 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);
@@ -93,23 +94,23 @@ index 8e1ad6eceb..97843992c2 100644
          ret = mirror_dirty_init(s);
          if (ret < 0 || job_is_cancelled(&s->common.job)) {
              goto immediate_exit;
-@@ -1188,6 +1202,7 @@ static const BlockJobDriver mirror_job_driver = {
+@@ -1221,6 +1235,7 @@ static const BlockJobDriver mirror_job_driver = {
          .run                    = mirror_run,
          .prepare                = mirror_prepare,
          .abort                  = mirror_abort,
 +        .clean                  = mirror_clean,
          .pause                  = mirror_pause,
          .complete               = mirror_complete,
-     },
-@@ -1203,6 +1218,7 @@ static const BlockJobDriver commit_active_job_driver = {
+         .cancel                 = mirror_cancel,
+@@ -1237,6 +1252,7 @@ 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,
-     },
-@@ -1550,7 +1566,10 @@ static BlockJob *mirror_start_job(
+         .cancel                 = commit_active_cancel,
+@@ -1602,7 +1618,10 @@ static BlockJob *mirror_start_job(
                               BlockCompletionFunc *cb,
                               void *opaque,
                               const BlockJobDriver *driver,
@@ -121,12 +122,11 @@ index 8e1ad6eceb..97843992c2 100644
                               bool auto_complete, const char *filter_node_name,
                               bool is_mirror, MirrorCopyMode copy_mode,
                               Error **errp)
-@@ -1563,10 +1582,39 @@ static BlockJob *mirror_start_job(
-     Error *local_err = NULL;
+@@ -1614,10 +1633,39 @@ static BlockJob *mirror_start_job(
+     uint64_t target_perms, target_shared_perms;
      int ret;
  
 -    if (granularity == 0) {
--        granularity = bdrv_get_default_bitmap_granularity(target);
 +    if (sync_mode == MIRROR_SYNC_MODE_INCREMENTAL) {
 +        error_setg(errp, "Sync mode '%s' not supported",
 +                   MirrorSyncMode_str(sync_mode));
@@ -147,8 +147,8 @@ index 8e1ad6eceb..97843992c2 100644
 +                   "sync mode '%s' is not compatible with bitmaps",
 +                   MirrorSyncMode_str(sync_mode));
 +        return NULL;
-     }
- 
++    }
++
 +    if (bitmap) {
 +        if (granularity) {
 +            error_setg(errp, "granularity (%d)"
@@ -158,12 +158,13 @@ index 8e1ad6eceb..97843992c2 100644
 +        }
 +        granularity = bdrv_dirty_bitmap_granularity(bitmap);
 +    } else if (granularity == 0) {
-+        granularity = bdrv_get_default_bitmap_granularity(target);
-+    }
+         granularity = bdrv_get_default_bitmap_granularity(target);
+     }
+-
      assert(is_power_of_2(granularity));
  
      if (buf_size < 0) {
-@@ -1705,7 +1753,9 @@ static BlockJob *mirror_start_job(
+@@ -1755,7 +1803,9 @@ static BlockJob *mirror_start_job(
      s->replaces = g_strdup(replaces);
      s->on_source_error = on_source_error;
      s->on_target_error = on_target_error;
@@ -174,7 +175,7 @@ index 8e1ad6eceb..97843992c2 100644
      s->backing_mode = backing_mode;
      s->zero_target = zero_target;
      s->copy_mode = copy_mode;
-@@ -1726,6 +1776,18 @@ static BlockJob *mirror_start_job(
+@@ -1776,6 +1826,18 @@ static BlockJob *mirror_start_job(
          bdrv_disable_dirty_bitmap(s->dirty_bitmap);
      }
  
@@ -193,7 +194,7 @@ index 8e1ad6eceb..97843992c2 100644
      ret = block_job_add_bdrv(&s->common, "source", bs, 0,
                               BLK_PERM_WRITE_UNCHANGED | BLK_PERM_WRITE |
                               BLK_PERM_CONSISTENT_READ,
-@@ -1803,6 +1865,9 @@ fail:
+@@ -1853,6 +1915,9 @@ fail:
          if (s->dirty_bitmap) {
              bdrv_release_dirty_bitmap(s->dirty_bitmap);
          }
@@ -203,7 +204,7 @@ index 8e1ad6eceb..97843992c2 100644
          job_early_fail(&s->common.job);
      }
  
-@@ -1820,29 +1885,23 @@ void mirror_start(const char *job_id, BlockDriverState *bs,
+@@ -1870,29 +1935,23 @@ 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,
@@ -238,7 +239,7 @@ index 8e1ad6eceb..97843992c2 100644
  }
  
  BlockJob *commit_active_start(const char *job_id, BlockDriverState *bs,
-@@ -1868,7 +1927,8 @@ BlockJob *commit_active_start(const char *job_id, BlockDriverState *bs,
+@@ -1917,7 +1976,8 @@ 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,
@@ -246,13 +247,13 @@ index 8e1ad6eceb..97843992c2 100644
 +                     &commit_active_job_driver, MIRROR_SYNC_MODE_FULL,
 +                     NULL, 0, base, auto_complete,
                       filter_node_name, false, MIRROR_COPY_MODE_BACKGROUND,
-                      &local_err);
-     if (local_err) {
+                      errp);
+     if (!job) {
 diff --git a/blockdev.c b/blockdev.c
-index fe6fb5dc1d..394920613d 100644
+index b35072644e..9940116fe0 100644
 --- a/blockdev.c
 +++ b/blockdev.c
-@@ -2930,6 +2930,10 @@ static void blockdev_mirror_common(const char *job_id, BlockDriverState *bs,
+@@ -2956,6 +2956,10 @@ static void blockdev_mirror_common(const char *job_id, BlockDriverState *bs,
                                     BlockDriverState *target,
                                     bool has_replaces, const char *replaces,
                                     enum MirrorSyncMode sync,
@@ -263,7 +264,7 @@ index fe6fb5dc1d..394920613d 100644
                                     BlockMirrorBackingMode backing_mode,
                                     bool zero_target,
                                     bool has_speed, int64_t speed,
-@@ -2949,6 +2953,7 @@ static void blockdev_mirror_common(const char *job_id, BlockDriverState *bs,
+@@ -2975,6 +2979,7 @@ static void blockdev_mirror_common(const char *job_id, BlockDriverState *bs,
  {
      BlockDriverState *unfiltered_bs;
      int job_flags = JOB_DEFAULT;
@@ -271,7 +272,7 @@ index fe6fb5dc1d..394920613d 100644
  
      if (!has_speed) {
          speed = 0;
-@@ -3003,6 +3008,29 @@ static void blockdev_mirror_common(const char *job_id, BlockDriverState *bs,
+@@ -3029,6 +3034,29 @@ static void blockdev_mirror_common(const char *job_id, BlockDriverState *bs,
          sync = MIRROR_SYNC_MODE_FULL;
      }
  
@@ -301,7 +302,7 @@ index fe6fb5dc1d..394920613d 100644
      if (!has_replaces) {
          /* We want to mirror from @bs, but keep implicit filters on top */
          unfiltered_bs = bdrv_skip_implicit_filters(bs);
-@@ -3049,8 +3077,8 @@ static void blockdev_mirror_common(const char *job_id, BlockDriverState *bs,
+@@ -3075,8 +3103,8 @@ 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,
@@ -312,7 +313,7 @@ index fe6fb5dc1d..394920613d 100644
                   on_source_error, on_target_error, unmap, filter_node_name,
                   copy_mode, errp);
  }
-@@ -3195,6 +3223,8 @@ void qmp_drive_mirror(DriveMirror *arg, Error **errp)
+@@ -3221,6 +3249,8 @@ void qmp_drive_mirror(DriveMirror *arg, Error **errp)
  
      blockdev_mirror_common(arg->has_job_id ? arg->job_id : NULL, bs, target_bs,
                             arg->has_replaces, arg->replaces, arg->sync,
@@ -321,7 +322,7 @@ index fe6fb5dc1d..394920613d 100644
                             backing_mode, zero_target,
                             arg->has_speed, arg->speed,
                             arg->has_granularity, arg->granularity,
-@@ -3216,6 +3246,8 @@ void qmp_blockdev_mirror(bool has_job_id, const char *job_id,
+@@ -3242,6 +3272,8 @@ void qmp_blockdev_mirror(bool has_job_id, const char *job_id,
                           const char *device, const char *target,
                           bool has_replaces, const char *replaces,
                           MirrorSyncMode sync,
@@ -330,7 +331,7 @@ index fe6fb5dc1d..394920613d 100644
                           bool has_speed, int64_t speed,
                           bool has_granularity, uint32_t granularity,
                           bool has_buf_size, int64_t buf_size,
-@@ -3265,7 +3297,8 @@ void qmp_blockdev_mirror(bool has_job_id, const char *job_id,
+@@ -3291,7 +3323,8 @@ void qmp_blockdev_mirror(bool has_job_id, const char *job_id,
      }
  
      blockdev_mirror_common(has_job_id ? job_id : NULL, bs, target_bs,
@@ -341,10 +342,10 @@ index fe6fb5dc1d..394920613d 100644
                             has_granularity, granularity,
                             has_buf_size, buf_size,
 diff --git a/include/block/block_int.h b/include/block/block_int.h
-index 95d9333be1..6f8eda629a 100644
+index f4c75e8ba9..ee0aeb1414 100644
 --- a/include/block/block_int.h
 +++ b/include/block/block_int.h
-@@ -1230,7 +1230,9 @@ void mirror_start(const char *job_id, BlockDriverState *bs,
+@@ -1287,7 +1287,9 @@ 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,
@@ -356,10 +357,10 @@ index 95d9333be1..6f8eda629a 100644
                    BlockdevOnError on_source_error,
                    BlockdevOnError on_target_error,
 diff --git a/qapi/block-core.json b/qapi/block-core.json
-index 04ad80bc1e..9db3120716 100644
+index 1d3dd9cb48..da5dca1e3b 100644
 --- a/qapi/block-core.json
 +++ b/qapi/block-core.json
-@@ -1971,10 +1971,19 @@
+@@ -1995,10 +1995,19 @@
  #        (all the disk, only the sectors allocated in the topmost image, or
  #        only new I/O).
  #
@@ -380,7 +381,7 @@ index 04ad80bc1e..9db3120716 100644
  #
  # @buf-size: maximum amount of data in flight from source to
  #            target (since 1.4).
-@@ -2012,7 +2021,9 @@
+@@ -2036,7 +2045,9 @@
  { 'struct': 'DriveMirror',
    'data': { '*job-id': 'str', 'device': 'str', 'target': 'str',
              '*format': 'str', '*node-name': 'str', '*replaces': 'str',
@@ -391,7 +392,7 @@ index 04ad80bc1e..9db3120716 100644
              '*speed': 'int', '*granularity': 'uint32',
              '*buf-size': 'int', '*on-source-error': 'BlockdevOnError',
              '*on-target-error': 'BlockdevOnError',
-@@ -2280,10 +2291,19 @@
+@@ -2308,10 +2319,19 @@
  #        (all the disk, only the sectors allocated in the topmost image, or
  #        only new I/O).
  #
@@ -412,7 +413,7 @@ index 04ad80bc1e..9db3120716 100644
  #
  # @buf-size: maximum amount of data in flight from source to
  #            target
-@@ -2332,7 +2352,8 @@
+@@ -2360,7 +2380,8 @@
  { 'command': 'blockdev-mirror',
    'data': { '*job-id': 'str', 'device': 'str', 'target': 'str',
              '*replaces': 'str',
@@ -422,11 +423,11 @@ index 04ad80bc1e..9db3120716 100644
              '*speed': 'int', '*granularity': 'uint32',
              '*buf-size': 'int', '*on-source-error': 'BlockdevOnError',
              '*on-target-error': 'BlockdevOnError',
-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)
+diff --git a/tests/unit/test-block-iothread.c b/tests/unit/test-block-iothread.c
+index aea660aeed..22b9770a3e 100644
+--- a/tests/unit/test-block-iothread.c
++++ b/tests/unit/test-block-iothread.c
+@@ -626,8 +626,8 @@ static void test_propagate_mirror(void)
  
      /* Start a mirror job */
      mirror_start("job0", src, target, NULL, JOB_DEFAULT, 0, 0, 0,

debian/patches/bitmap-mirror/0002-drive-mirror-add-support-for-conditional-and-always-.patch

@@ -18,15 +18,16 @@ 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 97843992c2..d1cce079da 100644
+index f7804638f9..4f5f74e2cf 100644
 --- a/block/mirror.c
 +++ b/block/mirror.c
-@@ -654,8 +654,6 @@ static int mirror_exit_common(Job *job)
+@@ -672,8 +672,6 @@ static int mirror_exit_common(Job *job)
          bdrv_unfreeze_backing_chain(mirror_top_bs, target_bs);
      }
  
@@ -35,7 +36,7 @@ index 97843992c2..d1cce079da 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);
-@@ -755,6 +753,18 @@ static int mirror_exit_common(Job *job)
+@@ -781,6 +779,18 @@ 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);
  
@@ -54,7 +55,7 @@ index 97843992c2..d1cce079da 100644
      bs_opaque->job = NULL;
  
      bdrv_drained_end(src);
-@@ -1592,10 +1602,6 @@ static BlockJob *mirror_start_job(
+@@ -1643,10 +1653,6 @@ static BlockJob *mirror_start_job(
                         " sync mode",
                         MirrorSyncMode_str(sync_mode));
              return NULL;
@@ -65,7 +66,7 @@ index 97843992c2..d1cce079da 100644
          }
      } else if (bitmap) {
          error_setg(errp,
-@@ -1612,6 +1618,12 @@ static BlockJob *mirror_start_job(
+@@ -1663,6 +1669,12 @@ static BlockJob *mirror_start_job(
              return NULL;
          }
          granularity = bdrv_dirty_bitmap_granularity(bitmap);

debian/patches/bitmap-mirror/0003-mirror-add-check-for-bitmap-mode-without-bitmap.patch

@@ -10,15 +10,16 @@ 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 394920613d..4f8bd38b58 100644
+index 9940116fe0..b113e57d68 100644
 --- a/blockdev.c
 +++ b/blockdev.c
-@@ -3029,6 +3029,9 @@ static void blockdev_mirror_common(const char *job_id, BlockDriverState *bs,
+@@ -3055,6 +3055,9 @@ static void blockdev_mirror_common(const char *job_id, BlockDriverState *bs,
          if (bdrv_dirty_bitmap_check(bitmap, BDRV_BITMAP_ALLOW_RO, errp)) {
              return;
          }

debian/patches/bitmap-mirror/0004-mirror-switch-to-bdrv_dirty_bitmap_merge_internal.patch

@@ -10,15 +10,16 @@ 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 | 8 ++++----
- 1 file changed, 4 insertions(+), 4 deletions(-)
+ block/mirror.c | 11 ++++-------
+ 1 file changed, 4 insertions(+), 7 deletions(-)
 
 diff --git a/block/mirror.c b/block/mirror.c
-index d1cce079da..e6140cf018 100644
+index 4f5f74e2cf..7024f3bbf0 100644
 --- a/block/mirror.c
 +++ b/block/mirror.c
-@@ -759,8 +759,8 @@ static int mirror_exit_common(Job *job)
+@@ -785,8 +785,8 @@ 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);
@@ -29,14 +30,17 @@ index d1cce079da..e6140cf018 100644
          }
      }
      bdrv_release_dirty_bitmap(s->dirty_bitmap);
-@@ -1793,8 +1793,8 @@ static BlockJob *mirror_start_job(
+@@ -1843,11 +1843,8 @@ 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);
-         if (local_err) {
-             goto fail;
-         }
+     }
+ 
+     ret = block_job_add_bdrv(&s->common, "source", bs, 0,

debian/patches/bitmap-mirror/0005-iotests-add-test-for-bitmap-mirror.patch

@@ -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 ++++++++++++++++++++++++++++++++++++
- tests/qemu-iotests/group   |    1 +
- 3 files changed, 3394 insertions(+)
+ 2 files changed, 3393 insertions(+)
  create mode 100755 tests/qemu-iotests/384
  create mode 100644 tests/qemu-iotests/384.out
 
@@ -3433,15 +3433,3 @@ 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 2960dff728..952dceba1f 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

debian/patches/bitmap-mirror/0006-mirror-move-some-checks-to-qmp.patch

@@ -11,6 +11,7 @@ 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>
 ---
  block/mirror.c             | 28 +++------------
  blockdev.c                 | 29 +++++++++++++++
@@ -18,11 +19,11 @@ Signed-off-by: Fabian Grünbichler <f.gruenbichler@proxmox.com>
  3 files changed, 70 insertions(+), 59 deletions(-)
 
 diff --git a/block/mirror.c b/block/mirror.c
-index e6140cf018..3a08239a78 100644
+index 7024f3bbf0..6211ff22fc 100644
 --- a/block/mirror.c
 +++ b/block/mirror.c
-@@ -1592,31 +1592,13 @@ static BlockJob *mirror_start_job(
-     Error *local_err = NULL;
+@@ -1643,31 +1643,13 @@ static BlockJob *mirror_start_job(
+     uint64_t target_perms, target_shared_perms;
      int ret;
  
 -    if (sync_mode == MIRROR_SYNC_MODE_INCREMENTAL) {
@@ -59,10 +60,10 @@ index e6140cf018..3a08239a78 100644
  
          if (bitmap_mode != BITMAP_SYNC_MODE_NEVER) {
 diff --git a/blockdev.c b/blockdev.c
-index 4f8bd38b58..a40c6fd0f6 100644
+index b113e57d68..4be0863050 100644
 --- a/blockdev.c
 +++ b/blockdev.c
-@@ -3008,7 +3008,36 @@ static void blockdev_mirror_common(const char *job_id, BlockDriverState *bs,
+@@ -3034,7 +3034,36 @@ static void blockdev_mirror_common(const char *job_id, BlockDriverState *bs,
          sync = MIRROR_SYNC_MODE_FULL;
      }
  

debian/patches/extra/0001-Revert-qemu-img-convert-Don-t-pre-zero-images.patch

@@ -1,33 +0,0 @@
-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 8bdea40b58..f9050bfaad 100644
---- a/qemu-img.c
-+++ b/qemu-img.c
-@@ -2104,6 +2104,15 @@ 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) {

debian/patches/extra/0001-monitor-qmp-fix-race-with-clients-disconnecting-earl.patch

@@ -0,0 +1,206 @@
+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 12d395d62d..b182943324 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 3da3f86c6a..9953e0cd2d 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 21c7a68758..ad9813567a 100644
+--- a/monitor/monitor.c
++++ b/monitor/monitor.c
+@@ -135,6 +135,21 @@ 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 092c527b6f..6b8cfcf6d8 100644
+--- a/monitor/qmp.c
++++ b/monitor/qmp.c
+@@ -141,6 +141,8 @@ 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);
+ 
+@@ -156,7 +158,17 @@ 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);
+ }
+ 
+@@ -444,6 +456,7 @@ 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 d378bccac7..fb8936e7cd 100644
+--- a/qapi/qmp-dispatch.c
++++ b/qapi/qmp-dispatch.c
+@@ -118,16 +118,28 @@ 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);
+ }
+ 
+@@ -232,6 +244,7 @@ QDict *qmp_dispatch(const QmpCommandList *cmds, QObject *request,
+             .ret        = &ret,
+             .errp       = &err,
+             .co         = qemu_coroutine_self(),
++            .conn_nr    = monitor_get_connection_nr(cur_mon),
+         };
+         aio_bh_schedule_oneshot(qemu_get_aio_context(), do_qmp_dispatch_bh,
+                                 &data);
+diff --git a/stubs/monitor-core.c b/stubs/monitor-core.c
+index d058a2a00d..3290b58120 100644
+--- a/stubs/monitor-core.c
++++ b/stubs/monitor-core.c
+@@ -13,6 +13,11 @@ 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)
+ {
+ }

debian/patches/extra/0002-docs-don-t-install-man-page-if-guest-agent-is-disabl.patch

@@ -1,38 +0,0 @@
-From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
-From: Stefan Reiter <s.reiter@proxmox.com>
-Date: Thu, 28 Jan 2021 15:19:51 +0100
-Subject: [PATCH] docs: don't install man page if guest agent is disabled
-
-No sense outputting the qemu-ga and qemu-ga-ref man pages when the guest
-agent binary itself is disabled. This mirrors behaviour from before the
-meson switch.
-
-Signed-off-by: Stefan Reiter <s.reiter@proxmox.com>
----
- docs/meson.build | 6 ++++--
- 1 file changed, 4 insertions(+), 2 deletions(-)
-
-diff --git a/docs/meson.build b/docs/meson.build
-index ebd85d59f9..cc6f5007f8 100644
---- a/docs/meson.build
-+++ b/docs/meson.build
-@@ -46,6 +46,8 @@ if build_docs
-                           meson.source_root() / 'docs/sphinx/qmp_lexer.py',
-                           qapi_gen_depends ]
- 
-+  have_ga = have_tools and config_host.has_key('CONFIG_GUEST_AGENT')
-+
-   configure_file(output: 'index.html',
-                  input: files('index.html.in'),
-                  configuration: {'VERSION': meson.project_version()},
-@@ -53,8 +55,8 @@ if build_docs
-   manuals = [ 'devel', 'interop', 'tools', 'specs', 'system', 'user' ]
-   man_pages = {
-     'interop' : {
--        'qemu-ga.8': (have_tools ? 'man8' : ''),
--        'qemu-ga-ref.7': 'man7',
-+        'qemu-ga.8': (have_ga ? 'man8' : ''),
-+        'qemu-ga-ref.7': (have_ga ? 'man7' : ''),
-         'qemu-qmp-ref.7': 'man7',
-     },
-     'tools': {

debian/patches/extra/0002-monitor-hmp-add-support-for-flag-argument-with-value.patch

@@ -0,0 +1,55 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Stefan Reiter <s.reiter@proxmox.com>
+Date: Wed, 1 Sep 2021 16:51:04 +0200
+Subject: [PATCH] monitor/hmp: add support for flag argument with value
+
+Adds support for the "-xS" parameter type, where "-x" denotes a flag
+name and the "S" suffix indicates that this flag is supposed to take an
+arbitrary string parameter.
+
+These parameters are always optional, the entry in the qdict will be
+omitted if the flag is not given.
+
+Reviewed-by: Eric Blake <eblake@redhat.com>
+Signed-off-by: Stefan Reiter <s.reiter@proxmox.com>
+Signed-off-by: Thomas Lamprecht <t.lamprecht@proxmox.com>
+---
+ monitor/hmp.c | 17 ++++++++++++++++-
+ 1 file changed, 16 insertions(+), 1 deletion(-)
+
+diff --git a/monitor/hmp.c b/monitor/hmp.c
+index b20737e63c..b29dbb1833 100644
+--- a/monitor/hmp.c
++++ b/monitor/hmp.c
+@@ -981,6 +981,7 @@ static QDict *monitor_parse_arguments(Monitor *mon,
+             {
+                 const char *tmp = p;
+                 int skip_key = 0;
++                int ret;
+                 /* option */
+ 
+                 c = *typestr++;
+@@ -1003,8 +1004,22 @@ static QDict *monitor_parse_arguments(Monitor *mon,
+                     }
+                     if (skip_key) {
+                         p = tmp;
++                    } else if (*typestr == 'S') {
++                        /* has option with string value */
++                        typestr++;
++                        tmp = p++;
++                        while (qemu_isspace(*p)) {
++                            p++;
++                        }
++                        ret = get_str(buf, sizeof(buf), &p);
++                        if (ret < 0) {
++                            monitor_printf(mon, "%s: value expected for -%c\n",
++                                           cmd->name, *tmp);
++                            goto fail;
++                        }
++                        qdict_put_str(qdict, key, buf);
+                     } else {
+-                        /* has option */
++                        /* has boolean option */
+                         p++;
+                         qdict_put_bool(qdict, key, true);
+                     }

debian/patches/extra/0003-migration-only-check-page-size-match-if-RAM-postcopy.patch

@@ -1,31 +0,0 @@
-From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
-From: Stefan Reiter <s.reiter@proxmox.com>
-Date: Thu, 4 Feb 2021 17:06:19 +0100
-Subject: [PATCH] migration: only check page size match if RAM postcopy is
- enabled
-
-Postcopy may also be advised for dirty-bitmap migration only, in which
-case the remote page size will not be available and we'll instead read
-bogus data, blocking migration with a mismatch error if the VM uses
-hugepages.
-
-Fixes: 58110f0acb ("migration: split common postcopy out of ram postcopy")
-Signed-off-by: Stefan Reiter <s.reiter@proxmox.com>
-Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
----
- migration/ram.c | 2 +-
- 1 file changed, 1 insertion(+), 1 deletion(-)
-
-diff --git a/migration/ram.c b/migration/ram.c
-index 7811cde643..6ace15261c 100644
---- a/migration/ram.c
-+++ b/migration/ram.c
-@@ -3521,7 +3521,7 @@ static int ram_load_precopy(QEMUFile *f)
-                         }
-                     }
-                     /* For postcopy we need to check hugepage sizes match */
--                    if (postcopy_advised &&
-+                    if (postcopy_advised && migrate_postcopy_ram() &&
-                         block->page_size != qemu_host_page_size) {
-                         uint64_t remote_page_size = qemu_get_be64(f);
-                         if (remote_page_size != block->page_size) {

debian/patches/extra/0003-monitor-refactor-set-expire_password-and-allow-VNC-d.patch

@@ -0,0 +1,477 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Stefan Reiter <s.reiter@proxmox.com>
+Date: Wed, 25 Aug 2021 11:14:13 +0200
+Subject: [PATCH] monitor: refactor set/expire_password and allow VNC display
+ id
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+It is possible to specify more than one VNC server on the command line,
+either with an explicit ID or the auto-generated ones à la "default",
+"vnc2", "vnc3", ...
+
+It is not possible to change the password on one of these extra VNC
+displays though. Fix this by adding a "display" parameter to the
+"set_password" and "expire_password" QMP and HMP commands.
+
+For HMP, the display is specified using the "-d" value flag.
+
+For QMP, the schema is updated to explicitly express the supported
+variants of the commands with protocol-discriminated unions.
+
+Suggested-by: Eric Blake <eblake@redhat.com>
+Suggested-by: Markus Armbruster <armbru@redhat.com>
+Signed-off-by: Stefan Reiter <s.reiter@proxmox.com>
+Signed-off-by: Thomas Lamprecht <t.lamprecht@proxmox.com>
+Signed-off-by: Fabian Ebner <f.ebner@proxmox.com>
+---
+ hmp-commands.hx    |  24 ++++---
+ monitor/hmp-cmds.c |  57 +++++++++++++++-
+ monitor/qmp-cmds.c |  62 ++++++-----------
+ qapi/ui.json       | 165 ++++++++++++++++++++++++++++++++++++++-------
+ 4 files changed, 231 insertions(+), 77 deletions(-)
+
+diff --git a/hmp-commands.hx b/hmp-commands.hx
+index 70a9136ac2..5efb47fc32 100644
+--- a/hmp-commands.hx
++++ b/hmp-commands.hx
+@@ -1514,33 +1514,35 @@ ERST
+ 
+     {
+         .name       = "set_password",
+-        .args_type  = "protocol:s,password:s,connected:s?",
+-        .params     = "protocol password action-if-connected",
++        .args_type  = "protocol:s,password:s,display:-dS,connected:s?",
++        .params     = "protocol password [-d display] [action-if-connected]",
+         .help       = "set spice/vnc password",
+         .cmd        = hmp_set_password,
+     },
+ 
+ SRST
+-``set_password [ vnc | spice ] password [ action-if-connected ]``
+-  Change spice/vnc password.  *action-if-connected* specifies what
+-  should happen in case a connection is established: *fail* makes the
+-  password change fail.  *disconnect* changes the password and
++``set_password [ vnc | spice ] password [ -d display ] [ action-if-connected ]``
++  Change spice/vnc password.  *display* can be used with 'vnc' to specify
++  which display to set the password on.  *action-if-connected* specifies
++  what should happen in case a connection is established: *fail* makes
++  the password change fail.  *disconnect* changes the password and
+   disconnects the client.  *keep* changes the password and keeps the
+   connection up.  *keep* is the default.
+ ERST
+ 
+     {
+         .name       = "expire_password",
+-        .args_type  = "protocol:s,time:s",
+-        .params     = "protocol time",
++        .args_type  = "protocol:s,time:s,display:-dS",
++        .params     = "protocol time [-d display]",
+         .help       = "set spice/vnc password expire-time",
+         .cmd        = hmp_expire_password,
+     },
+ 
+ SRST
+-``expire_password [ vnc | spice ]`` *expire-time*
+-  Specify when a password for spice/vnc becomes
+-  invalid. *expire-time* accepts:
++``expire_password [ vnc | spice ] expire-time [ -d display ]``
++  Specify when a password for spice/vnc becomes invalid.
++  *display* behaves the same as in ``set_password``.
++  *expire-time* accepts:
+ 
+   ``now``
+     Invalidate password instantly.
+diff --git a/monitor/hmp-cmds.c b/monitor/hmp-cmds.c
+index 9c91bf93e9..2e91ccb738 100644
+--- a/monitor/hmp-cmds.c
++++ b/monitor/hmp-cmds.c
+@@ -1384,10 +1384,41 @@ void hmp_set_password(Monitor *mon, const QDict *qdict)
+ {
+     const char *protocol  = qdict_get_str(qdict, "protocol");
+     const char *password  = qdict_get_str(qdict, "password");
++    const char *display = qdict_get_try_str(qdict, "display");
+     const char *connected = qdict_get_try_str(qdict, "connected");
+     Error *err = NULL;
++    DisplayProtocol proto;
+ 
+-    qmp_set_password(protocol, password, !!connected, connected, &err);
++    SetPasswordOptions opts = {
++        .password = g_strdup(password),
++        .u.vnc.display = NULL,
++    };
++
++    proto = qapi_enum_parse(&DisplayProtocol_lookup, protocol,
++                            DISPLAY_PROTOCOL_VNC, &err);
++    if (err) {
++        hmp_handle_error(mon, err);
++        return;
++    }
++    opts.protocol = proto;
++
++    if (proto == DISPLAY_PROTOCOL_VNC) {
++        opts.u.vnc.has_display = !!display;
++        opts.u.vnc.display = g_strdup(display);
++    } else if (proto == DISPLAY_PROTOCOL_SPICE) {
++        opts.u.spice.has_connected = !!connected;
++        opts.u.spice.connected =
++            qapi_enum_parse(&SetPasswordAction_lookup, connected,
++                            SET_PASSWORD_ACTION_KEEP, &err);
++        if (err) {
++            hmp_handle_error(mon, err);
++            return;
++        }
++    }
++
++    qmp_set_password(&opts, &err);
++    g_free(opts.password);
++    g_free(opts.u.vnc.display);
+     hmp_handle_error(mon, err);
+ }
+ 
+@@ -1395,9 +1426,31 @@ void hmp_expire_password(Monitor *mon, const QDict *qdict)
+ {
+     const char *protocol  = qdict_get_str(qdict, "protocol");
+     const char *whenstr = qdict_get_str(qdict, "time");
++    const char *display = qdict_get_try_str(qdict, "display");
+     Error *err = NULL;
++    DisplayProtocol proto;
+ 
+-    qmp_expire_password(protocol, whenstr, &err);
++    ExpirePasswordOptions opts = {
++        .time = g_strdup(whenstr),
++        .u.vnc.display = NULL,
++    };
++
++    proto = qapi_enum_parse(&DisplayProtocol_lookup, protocol,
++                            DISPLAY_PROTOCOL_VNC, &err);
++    if (err) {
++        hmp_handle_error(mon, err);
++        return;
++    }
++    opts.protocol = proto;
++
++    if (proto == DISPLAY_PROTOCOL_VNC) {
++        opts.u.vnc.has_display = !!display;
++        opts.u.vnc.display = g_strdup(display);
++    }
++
++    qmp_expire_password(&opts, &err);
++    g_free(opts.time);
++    g_free(opts.u.vnc.display);
+     hmp_handle_error(mon, err);
+ }
+ 
+diff --git a/monitor/qmp-cmds.c b/monitor/qmp-cmds.c
+index 343353e27a..729ca7cceb 100644
+--- a/monitor/qmp-cmds.c
++++ b/monitor/qmp-cmds.c
+@@ -167,45 +167,30 @@ void qmp_system_wakeup(Error **errp)
+     qemu_system_wakeup_request(QEMU_WAKEUP_REASON_OTHER, errp);
+ }
+ 
+-void qmp_set_password(const char *protocol, const char *password,
+-                      bool has_connected, const char *connected, Error **errp)
++void qmp_set_password(SetPasswordOptions *opts, Error **errp)
+ {
+-    int disconnect_if_connected = 0;
+-    int fail_if_connected = 0;
+-    int rc;
++    bool disconnect_if_connected = false;
++    bool fail_if_connected = false;
++    int rc = 0;
+ 
+-    if (has_connected) {
+-        if (strcmp(connected, "fail") == 0) {
+-            fail_if_connected = 1;
+-        } else if (strcmp(connected, "disconnect") == 0) {
+-            disconnect_if_connected = 1;
+-        } else if (strcmp(connected, "keep") == 0) {
+-            /* nothing */
+-        } else {
+-            error_setg(errp, QERR_INVALID_PARAMETER, "connected");
+-            return;
+-        }
+-    }
+-
+-    if (strcmp(protocol, "spice") == 0) {
++    if (opts->protocol == DISPLAY_PROTOCOL_SPICE) {
+         if (!qemu_using_spice(errp)) {
+             return;
+         }
+-        rc = qemu_spice.set_passwd(password, fail_if_connected,
++        if (opts->u.spice.has_connected) {
++            fail_if_connected =
++                opts->u.spice.connected == SET_PASSWORD_ACTION_FAIL;
++            disconnect_if_connected =
++                opts->u.spice.connected == SET_PASSWORD_ACTION_DISCONNECT;
++        }
++        rc = qemu_spice.set_passwd(opts->password, fail_if_connected,
+                                    disconnect_if_connected);
+-    } else if (strcmp(protocol, "vnc") == 0) {
+-        if (fail_if_connected || disconnect_if_connected) {
+-            /* vnc supports "connected=keep" only */
+-            error_setg(errp, QERR_INVALID_PARAMETER, "connected");
+-            return;
+-        }
++    } else if (opts->protocol == DISPLAY_PROTOCOL_VNC) {
+         /* Note that setting an empty password will not disable login through
+          * this interface. */
+-        rc = vnc_display_password(NULL, password);
+-    } else {
+-        error_setg(errp, QERR_INVALID_PARAMETER_VALUE, "protocol",
+-                   "'vnc' or 'spice'");
+-        return;
++        rc = vnc_display_password(
++                opts->u.vnc.has_display ? opts->u.vnc.display : NULL,
++                opts->password);
+     }
+ 
+     if (rc != 0) {
+@@ -213,11 +198,11 @@ void qmp_set_password(const char *protocol, const char *password,
+     }
+ }
+ 
+-void qmp_expire_password(const char *protocol, const char *whenstr,
+-                         Error **errp)
++void qmp_expire_password(ExpirePasswordOptions *opts, Error **errp)
+ {
+     time_t when;
+     int rc;
++    const char* whenstr = opts->time;
+ 
+     if (strcmp(whenstr, "now") == 0) {
+         when = 0;
+@@ -229,17 +214,14 @@ void qmp_expire_password(const char *protocol, const char *whenstr,
+         when = strtoull(whenstr, NULL, 10);
+     }
+ 
+-    if (strcmp(protocol, "spice") == 0) {
++    if (opts->protocol == DISPLAY_PROTOCOL_SPICE) {
+         if (!qemu_using_spice(errp)) {
+             return;
+         }
+         rc = qemu_spice.set_pw_expire(when);
+-    } else if (strcmp(protocol, "vnc") == 0) {
+-        rc = vnc_display_pw_expire(NULL, when);
+-    } else {
+-        error_setg(errp, QERR_INVALID_PARAMETER_VALUE, "protocol",
+-                   "'vnc' or 'spice'");
+-        return;
++    } else if (opts->protocol == DISPLAY_PROTOCOL_VNC) {
++        rc = vnc_display_pw_expire(
++                opts->u.vnc.has_display ? opts->u.vnc.display : NULL, when);
+     }
+ 
+     if (rc != 0) {
+diff --git a/qapi/ui.json b/qapi/ui.json
+index d7567ac866..4244c62c30 100644
+--- a/qapi/ui.json
++++ b/qapi/ui.json
+@@ -9,22 +9,23 @@
+ { 'include': 'common.json' }
+ { 'include': 'sockets.json' }
+ 
++##
++# @DisplayProtocol:
++#
++# Display protocols which support changing password options.
++#
++# Since: 6.2
++#
++##
++{ 'enum': 'DisplayProtocol',
++  'data': [ { 'name': 'vnc', 'if': 'CONFIG_VNC' },
++            { 'name': 'spice', 'if': 'CONFIG_SPICE' } ] }
++
+ ##
+ # @set_password:
+ #
+ # Sets the password of a remote display session.
+ #
+-# @protocol: - 'vnc' to modify the VNC server password
+-#            - 'spice' to modify the Spice server password
+-#
+-# @password: the new password
+-#
+-# @connected: how to handle existing clients when changing the
+-#             password.  If nothing is specified, defaults to 'keep'
+-#             'fail' to fail the command if clients are connected
+-#             'disconnect' to disconnect existing clients
+-#             'keep' to maintain existing clients
+-#
+ # Returns: - Nothing on success
+ #          - If Spice is not enabled, DeviceNotFound
+ #
+@@ -37,16 +38,123 @@
+ # <- { "return": {} }
+ #
+ ##
+-{ 'command': 'set_password',
+-  'data': {'protocol': 'str', 'password': 'str', '*connected': 'str'} }
++{ 'command': 'set_password', 'boxed': true, 'data': 'SetPasswordOptions' }
++
++##
++# @SetPasswordOptions:
++#
++# Data required to set a new password on a display server protocol.
++#
++# @protocol: - 'vnc' to modify the VNC server password
++#            - 'spice' to modify the Spice server password
++#
++# @password: the new password
++#
++# Since: 6.2
++#
++##
++{ 'union': 'SetPasswordOptions',
++  'base': { 'protocol': 'DisplayProtocol',
++            'password': 'str' },
++  'discriminator': 'protocol',
++  'data': { 'vnc': 'SetPasswordOptionsVnc',
++            'spice': 'SetPasswordOptionsSpice' } }
++
++##
++# @SetPasswordAction:
++#
++# An action to take on changing a password on a connection with active clients.
++#
++# @fail: fail the command if clients are connected
++#
++# @disconnect: disconnect existing clients
++#
++# @keep: maintain existing clients
++#
++# Since: 6.2
++#
++##
++{ 'enum': 'SetPasswordAction',
++  'data': [ 'fail', 'disconnect', 'keep' ] }
++
++##
++# @SetPasswordActionVnc:
++#
++# See @SetPasswordAction. VNC only supports the keep action. 'connection'
++# should just be omitted for VNC, this is kept for backwards compatibility.
++#
++# @keep: maintain existing clients
++#
++# Since: 6.2
++#
++##
++{ 'enum': 'SetPasswordActionVnc',
++  'data': [ 'keep' ] }
++
++##
++# @SetPasswordOptionsSpice:
++#
++# Options for set_password specific to the VNC procotol.
++#
++# @connected: How to handle existing clients when changing the
++#             password. If nothing is specified, defaults to 'keep'.
++#
++# Since: 6.2
++#
++##
++{ 'struct': 'SetPasswordOptionsSpice',
++  'data': { '*connected': 'SetPasswordAction' } }
++
++##
++# @SetPasswordOptionsVnc:
++#
++# Options for set_password specific to the VNC procotol.
++#
++# @display: The id of the display where the password should be changed.
++#           Defaults to the first.
++#
++# @connected: How to handle existing clients when changing the
++#             password.
++#
++# Features:
++# @deprecated: For VNC, @connected will always be 'keep', parameter should be
++#              omitted.
++#
++# Since: 6.2
++#
++##
++{ 'struct': 'SetPasswordOptionsVnc',
++  'data': { '*display': 'str',
++            '*connected': { 'type': 'SetPasswordActionVnc',
++                            'features': ['deprecated'] } } }
+ 
+ ##
+ # @expire_password:
+ #
+ # Expire the password of a remote display server.
+ #
+-# @protocol: the name of the remote display protocol 'vnc' or 'spice'
++# Returns: - Nothing on success
++#          - If @protocol is 'spice' and Spice is not active, DeviceNotFound
+ #
++# Since: 0.14
++#
++# Example:
++#
++# -> { "execute": "expire_password", "arguments": { "protocol": "vnc",
++#                                                   "time": "+60" } }
++# <- { "return": {} }
++#
++##
++{ 'command': 'expire_password', 'boxed': true, 'data': 'ExpirePasswordOptions' }
++
++##
++# @ExpirePasswordOptions:
++#
++# Data required to set password expiration on a display server protocol.
++#
++# @protocol: - 'vnc' to modify the VNC server expiration
++#            - 'spice' to modify the Spice server expiration
++
+ # @time: when to expire the password.
+ #
+ #        - 'now' to expire the password immediately
+@@ -54,24 +162,33 @@
+ #        - '+INT' where INT is the number of seconds from now (integer)
+ #        - 'INT' where INT is the absolute time in seconds
+ #
+-# Returns: - Nothing on success
+-#          - If @protocol is 'spice' and Spice is not active, DeviceNotFound
+-#
+-# Since: 0.14
+-#
+ # Notes: Time is relative to the server and currently there is no way to
+ #        coordinate server time with client time.  It is not recommended to
+ #        use the absolute time version of the @time parameter unless you're
+ #        sure you are on the same machine as the QEMU instance.
+ #
+-# Example:
++# Since: 6.2
+ #
+-# -> { "execute": "expire_password", "arguments": { "protocol": "vnc",
+-#                                                   "time": "+60" } }
+-# <- { "return": {} }
++##
++{ 'union': 'ExpirePasswordOptions',
++  'base': { 'protocol': 'DisplayProtocol',
++            'time': 'str' },
++  'discriminator': 'protocol',
++  'data': { 'vnc': 'ExpirePasswordOptionsVnc' } }
++
++##
++# @ExpirePasswordOptionsVnc:
++#
++# Options for expire_password specific to the VNC procotol.
++#
++# @display: The id of the display where the expiration should be changed.
++#           Defaults to the first.
++#
++# Since: 6.2
+ #
+ ##
+-{ 'command': 'expire_password', 'data': {'protocol': 'str', 'time': 'str'} }
++{ 'struct': 'ExpirePasswordOptionsVnc',
++  'data': { '*display': 'str' } }
+ 
+ ##
+ # @screendump:

debian/patches/extra/0004-virtiofsd-extract-lo_do_open-from-lo_open.patch

@@ -1,143 +0,0 @@
-From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
-From: Stefan Hajnoczi <stefanha@redhat.com>
-Date: Thu, 4 Feb 2021 18:34:35 +0000
-Subject: [PATCH] virtiofsd: extract lo_do_open() from lo_open()
-
-Both lo_open() and lo_create() have similar code to open a file. Extract
-a common lo_do_open() function from lo_open() that will be used by
-lo_create() in a later commit.
-
-Since lo_do_open() does not otherwise need fuse_req_t req, convert
-lo_add_fd_mapping() to use struct lo_data *lo instead.
-
-Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
-Message-Id: <20210204150208.367837-2-stefanha@redhat.com>
-Reviewed-by: Greg Kurz <groug@kaod.org>
-Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
-Signed-off-by: Thomas Lamprecht <t.lamprecht@proxmox.com>
----
- tools/virtiofsd/passthrough_ll.c | 73 ++++++++++++++++++++------------
- 1 file changed, 46 insertions(+), 27 deletions(-)
-
-diff --git a/tools/virtiofsd/passthrough_ll.c b/tools/virtiofsd/passthrough_ll.c
-index 97485b22b4..218e20e9d7 100644
---- a/tools/virtiofsd/passthrough_ll.c
-+++ b/tools/virtiofsd/passthrough_ll.c
-@@ -471,17 +471,17 @@ static void lo_map_remove(struct lo_map *map, size_t key)
- }
- 
- /* Assumes lo->mutex is held */
--static ssize_t lo_add_fd_mapping(fuse_req_t req, int fd)
-+static ssize_t lo_add_fd_mapping(struct lo_data *lo, int fd)
- {
-     struct lo_map_elem *elem;
- 
--    elem = lo_map_alloc_elem(&lo_data(req)->fd_map);
-+    elem = lo_map_alloc_elem(&lo->fd_map);
-     if (!elem) {
-         return -1;
-     }
- 
-     elem->fd = fd;
--    return elem - lo_data(req)->fd_map.elems;
-+    return elem - lo->fd_map.elems;
- }
- 
- /* Assumes lo->mutex is held */
-@@ -1661,6 +1661,38 @@ static void update_open_flags(int writeback, int allow_direct_io,
-     }
- }
- 
-+static int lo_do_open(struct lo_data *lo, struct lo_inode *inode,
-+                      struct fuse_file_info *fi)
-+{
-+    char buf[64];
-+    ssize_t fh;
-+    int fd;
-+
-+    update_open_flags(lo->writeback, lo->allow_direct_io, fi);
-+
-+    sprintf(buf, "%i", inode->fd);
-+    fd = openat(lo->proc_self_fd, buf, fi->flags & ~O_NOFOLLOW);
-+    if (fd == -1) {
-+        return errno;
-+    }
-+
-+    pthread_mutex_lock(&lo->mutex);
-+    fh = lo_add_fd_mapping(lo, fd);
-+    pthread_mutex_unlock(&lo->mutex);
-+    if (fh == -1) {
-+        close(fd);
-+        return ENOMEM;
-+    }
-+
-+    fi->fh = fh;
-+    if (lo->cache == CACHE_NONE) {
-+        fi->direct_io = 1;
-+    } else if (lo->cache == CACHE_ALWAYS) {
-+        fi->keep_cache = 1;
-+    }
-+    return 0;
-+}
-+
- static void lo_create(fuse_req_t req, fuse_ino_t parent, const char *name,
-                       mode_t mode, struct fuse_file_info *fi)
- {
-@@ -1701,7 +1733,7 @@ static void lo_create(fuse_req_t req, fuse_ino_t parent, const char *name,
-         ssize_t fh;
- 
-         pthread_mutex_lock(&lo->mutex);
--        fh = lo_add_fd_mapping(req, fd);
-+        fh = lo_add_fd_mapping(lo, fd);
-         pthread_mutex_unlock(&lo->mutex);
-         if (fh == -1) {
-             close(fd);
-@@ -1892,38 +1924,25 @@ static void lo_fsyncdir(fuse_req_t req, fuse_ino_t ino, int datasync,
- 
- static void lo_open(fuse_req_t req, fuse_ino_t ino, struct fuse_file_info *fi)
- {
--    int fd;
--    ssize_t fh;
--    char buf[64];
-     struct lo_data *lo = lo_data(req);
-+    struct lo_inode *inode = lo_inode(req, ino);
-+    int err;
- 
-     fuse_log(FUSE_LOG_DEBUG, "lo_open(ino=%" PRIu64 ", flags=%d)\n", ino,
-              fi->flags);
- 
--    update_open_flags(lo->writeback, lo->allow_direct_io, fi);
--
--    sprintf(buf, "%i", lo_fd(req, ino));
--    fd = openat(lo->proc_self_fd, buf, fi->flags & ~O_NOFOLLOW);
--    if (fd == -1) {
--        return (void)fuse_reply_err(req, errno);
--    }
--
--    pthread_mutex_lock(&lo->mutex);
--    fh = lo_add_fd_mapping(req, fd);
--    pthread_mutex_unlock(&lo->mutex);
--    if (fh == -1) {
--        close(fd);
--        fuse_reply_err(req, ENOMEM);
-+    if (!inode) {
-+        fuse_reply_err(req, EBADF);
-         return;
-     }
- 
--    fi->fh = fh;
--    if (lo->cache == CACHE_NONE) {
--        fi->direct_io = 1;
--    } else if (lo->cache == CACHE_ALWAYS) {
--        fi->keep_cache = 1;
-+    err = lo_do_open(lo, inode, fi);
-+    lo_inode_put(lo, &inode);
-+    if (err) {
-+        fuse_reply_err(req, err);
-+    } else {
-+        fuse_reply_open(req, fi);
-     }
--    fuse_reply_open(req, fi);
- }
- 
- static void lo_release(fuse_req_t req, fuse_ino_t ino,

debian/patches/extra/0005-virtiofsd-optionally-return-inode-pointer-from-lo_do.patch

@@ -1,107 +0,0 @@
-From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
-From: Stefan Hajnoczi <stefanha@redhat.com>
-Date: Thu, 4 Feb 2021 18:34:36 +0000
-Subject: [PATCH] virtiofsd: optionally return inode pointer from
- lo_do_lookup()
-
-lo_do_lookup() finds an existing inode or allocates a new one. It
-increments nlookup so that the inode stays alive until the client
-releases it.
-
-Existing callers don't need the struct lo_inode so the function doesn't
-return it. Extend the function to optionally return the inode. The next
-commit will need it.
-
-Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
-Reviewed-by: Greg Kurz <groug@kaod.org>
-Message-Id: <20210204150208.367837-3-stefanha@redhat.com>
-Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
-Signed-off-by: Thomas Lamprecht <t.lamprecht@proxmox.com>
----
- tools/virtiofsd/passthrough_ll.c | 29 +++++++++++++++++++++--------
- 1 file changed, 21 insertions(+), 8 deletions(-)
-
-diff --git a/tools/virtiofsd/passthrough_ll.c b/tools/virtiofsd/passthrough_ll.c
-index 218e20e9d7..2bd050b620 100644
---- a/tools/virtiofsd/passthrough_ll.c
-+++ b/tools/virtiofsd/passthrough_ll.c
-@@ -843,11 +843,13 @@ static int do_statx(struct lo_data *lo, int dirfd, const char *pathname,
- }
- 
- /*
-- * Increments nlookup and caller must release refcount using
-- * lo_inode_put(&parent).
-+ * Increments nlookup on the inode on success. unref_inode_lolocked() must be
-+ * called eventually to decrement nlookup again. If inodep is non-NULL, the
-+ * inode pointer is stored and the caller must call lo_inode_put().
-  */
- static int lo_do_lookup(fuse_req_t req, fuse_ino_t parent, const char *name,
--                        struct fuse_entry_param *e)
-+                        struct fuse_entry_param *e,
-+                        struct lo_inode **inodep)
- {
-     int newfd;
-     int res;
-@@ -857,6 +859,10 @@ static int lo_do_lookup(fuse_req_t req, fuse_ino_t parent, const char *name,
-     struct lo_inode *inode = NULL;
-     struct lo_inode *dir = lo_inode(req, parent);
- 
-+    if (inodep) {
-+        *inodep = NULL;
-+    }
-+
-     /*
-      * name_to_handle_at() and open_by_handle_at() can reach here with fuse
-      * mount point in guest, but we don't have its inode info in the
-@@ -924,7 +930,14 @@ static int lo_do_lookup(fuse_req_t req, fuse_ino_t parent, const char *name,
-         pthread_mutex_unlock(&lo->mutex);
-     }
-     e->ino = inode->fuse_ino;
--    lo_inode_put(lo, &inode);
-+
-+    /* Transfer ownership of inode pointer to caller or drop it */
-+    if (inodep) {
-+        *inodep = inode;
-+    } else {
-+        lo_inode_put(lo, &inode);
-+    }
-+
-     lo_inode_put(lo, &dir);
- 
-     fuse_log(FUSE_LOG_DEBUG, "  %lli/%s -> %lli\n", (unsigned long long)parent,
-@@ -959,7 +972,7 @@ static void lo_lookup(fuse_req_t req, fuse_ino_t parent, const char *name)
-         return;
-     }
- 
--    err = lo_do_lookup(req, parent, name, &e);
-+    err = lo_do_lookup(req, parent, name, &e, NULL);
-     if (err) {
-         fuse_reply_err(req, err);
-     } else {
-@@ -1067,7 +1080,7 @@ static void lo_mknod_symlink(fuse_req_t req, fuse_ino_t parent,
-         goto out;
-     }
- 
--    saverr = lo_do_lookup(req, parent, name, &e);
-+    saverr = lo_do_lookup(req, parent, name, &e, NULL);
-     if (saverr) {
-         goto out;
-     }
-@@ -1544,7 +1557,7 @@ static void lo_do_readdir(fuse_req_t req, fuse_ino_t ino, size_t size,
- 
-         if (plus) {
-             if (!is_dot_or_dotdot(name)) {
--                err = lo_do_lookup(req, ino, name, &e);
-+                err = lo_do_lookup(req, ino, name, &e, NULL);
-                 if (err) {
-                     goto error;
-                 }
-@@ -1742,7 +1755,7 @@ static void lo_create(fuse_req_t req, fuse_ino_t parent, const char *name,
-         }
- 
-         fi->fh = fh;
--        err = lo_do_lookup(req, parent, name, &e);
-+        err = lo_do_lookup(req, parent, name, &e, NULL);
-     }
-     if (lo->cache == CACHE_NONE) {
-         fi->direct_io = 1;

debian/patches/extra/0006-block-io-Update-BSC-only-if-want_zero-is-true.patch

@@ -0,0 +1,43 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Hanna Reitz <hreitz@redhat.com>
+Date: Tue, 18 Jan 2022 17:59:59 +0100
+Subject: [PATCH] block/io: Update BSC only if want_zero is true
+
+We update the block-status cache whenever we get new information from a
+bdrv_co_block_status() call to the block driver.  However, if we have
+passed want_zero=false to that call, it may flag areas containing zeroes
+as data, and so we would update the block-status cache with wrong
+information.
+
+Therefore, we should not update the cache with want_zero=false.
+
+Reported-by: Nir Soffer <nsoffer@redhat.com>
+Fixes: 0bc329fbb00 ("block: block-status cache for data regions")
+Reviewed-by: Nir Soffer <nsoffer@redhat.com>
+Cc: qemu-stable@nongnu.org
+Signed-off-by: Hanna Reitz <hreitz@redhat.com>
+Message-Id: <20220118170000.49423-2-hreitz@redhat.com>
+Reviewed-by: Eric Blake <eblake@redhat.com>
+Signed-off-by: Eric Blake <eblake@redhat.com>
+---
+ block/io.c | 6 +++++-
+ 1 file changed, 5 insertions(+), 1 deletion(-)
+
+diff --git a/block/io.c b/block/io.c
+index bb0a254def..4e4cb556c5 100644
+--- a/block/io.c
++++ b/block/io.c
+@@ -2497,8 +2497,12 @@ static int coroutine_fn bdrv_co_block_status(BlockDriverState *bs,
+              * non-protocol nodes, and then it is never used.  However, filling
+              * the cache requires an RCU update, so double check here to avoid
+              * such an update if possible.
++             *
++             * Check want_zero, because we only want to update the cache when we
++             * have accurate information about what is zero and what is data.
+              */
+-            if (ret == (BDRV_BLOCK_DATA | BDRV_BLOCK_OFFSET_VALID) &&
++            if (want_zero &&
++                ret == (BDRV_BLOCK_DATA | BDRV_BLOCK_OFFSET_VALID) &&
+                 QLIST_EMPTY(&bs->children))
+             {
+                 /*

debian/patches/extra/0006-virtiofsd-prevent-opening-of-special-files-CVE-2020-.patch

@@ -1,296 +0,0 @@
-From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
-From: Stefan Hajnoczi <stefanha@redhat.com>
-Date: Thu, 4 Feb 2021 18:34:37 +0000
-Subject: [PATCH] virtiofsd: prevent opening of special files (CVE-2020-35517)
-
-A well-behaved FUSE client does not attempt to open special files with
-FUSE_OPEN because they are handled on the client side (e.g. device nodes
-are handled by client-side device drivers).
-
-The check to prevent virtiofsd from opening special files is missing in
-a few cases, most notably FUSE_OPEN. A malicious client can cause
-virtiofsd to open a device node, potentially allowing the guest to
-escape. This can be exploited by a modified guest device driver. It is
-not exploitable from guest userspace since the guest kernel will handle
-special files inside the guest instead of sending FUSE requests.
-
-This patch fixes this issue by introducing the lo_inode_open() function
-to check the file type before opening it. This is a short-term solution
-because it does not prevent a compromised virtiofsd process from opening
-device nodes on the host.
-
-Restructure lo_create() to try O_CREAT | O_EXCL first. Note that O_CREAT
-| O_EXCL does not follow symlinks, so O_NOFOLLOW masking is not
-necessary here. If the file exists and the user did not specify O_EXCL,
-open it via lo_do_open().
-
-Reported-by: Alex Xu <alex@alxu.ca>
-Fixes: CVE-2020-35517
-Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
-Reviewed-by: Vivek Goyal <vgoyal@redhat.com>
-Reviewed-by: Greg Kurz <groug@kaod.org>
-Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
-Message-Id: <20210204150208.367837-4-stefanha@redhat.com>
-Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
-Signed-off-by: Thomas Lamprecht <t.lamprecht@proxmox.com>
----
- tools/virtiofsd/passthrough_ll.c | 144 ++++++++++++++++++++-----------
- 1 file changed, 92 insertions(+), 52 deletions(-)
-
-diff --git a/tools/virtiofsd/passthrough_ll.c b/tools/virtiofsd/passthrough_ll.c
-index 2bd050b620..03c5e0d13c 100644
---- a/tools/virtiofsd/passthrough_ll.c
-+++ b/tools/virtiofsd/passthrough_ll.c
-@@ -567,6 +567,38 @@ static int lo_fd(fuse_req_t req, fuse_ino_t ino)
-     return fd;
- }
- 
-+/*
-+ * Open a file descriptor for an inode. Returns -EBADF if the inode is not a
-+ * regular file or a directory.
-+ *
-+ * Use this helper function instead of raw openat(2) to prevent security issues
-+ * when a malicious client opens special files such as block device nodes.
-+ * Symlink inodes are also rejected since symlinks must already have been
-+ * traversed on the client side.
-+ */
-+static int lo_inode_open(struct lo_data *lo, struct lo_inode *inode,
-+                         int open_flags)
-+{
-+    g_autofree char *fd_str = g_strdup_printf("%d", inode->fd);
-+    int fd;
-+
-+    if (!S_ISREG(inode->filetype) && !S_ISDIR(inode->filetype)) {
-+        return -EBADF;
-+    }
-+
-+    /*
-+     * The file is a symlink so O_NOFOLLOW must be ignored. We checked earlier
-+     * that the inode is not a special file but if an external process races
-+     * with us then symlinks are traversed here. It is not possible to escape
-+     * the shared directory since it is mounted as "/" though.
-+     */
-+    fd = openat(lo->proc_self_fd, fd_str, open_flags & ~O_NOFOLLOW);
-+    if (fd < 0) {
-+        return -errno;
-+    }
-+    return fd;
-+}
-+
- static void lo_init(void *userdata, struct fuse_conn_info *conn)
- {
-     struct lo_data *lo = (struct lo_data *)userdata;
-@@ -696,9 +728,9 @@ static void lo_setattr(fuse_req_t req, fuse_ino_t ino, struct stat *attr,
-         if (fi) {
-             truncfd = fd;
-         } else {
--            sprintf(procname, "%i", ifd);
--            truncfd = openat(lo->proc_self_fd, procname, O_RDWR);
-+            truncfd = lo_inode_open(lo, inode, O_RDWR);
-             if (truncfd < 0) {
-+                errno = -truncfd;
-                 goto out_err;
-             }
-         }
-@@ -860,7 +892,7 @@ static int lo_do_lookup(fuse_req_t req, fuse_ino_t parent, const char *name,
-     struct lo_inode *dir = lo_inode(req, parent);
- 
-     if (inodep) {
--        *inodep = NULL;
-+        *inodep = NULL; /* in case there is an error */
-     }
- 
-     /*
-@@ -1674,19 +1706,26 @@ static void update_open_flags(int writeback, int allow_direct_io,
-     }
- }
- 
-+/*
-+ * Open a regular file, set up an fd mapping, and fill out the struct
-+ * fuse_file_info for it. If existing_fd is not negative, use that fd instead
-+ * opening a new one. Takes ownership of existing_fd.
-+ *
-+ * Returns 0 on success or a positive errno.
-+ */
- static int lo_do_open(struct lo_data *lo, struct lo_inode *inode,
--                      struct fuse_file_info *fi)
-+                      int existing_fd, struct fuse_file_info *fi)
- {
--    char buf[64];
-     ssize_t fh;
--    int fd;
-+    int fd = existing_fd;
- 
-     update_open_flags(lo->writeback, lo->allow_direct_io, fi);
- 
--    sprintf(buf, "%i", inode->fd);
--    fd = openat(lo->proc_self_fd, buf, fi->flags & ~O_NOFOLLOW);
--    if (fd == -1) {
--        return errno;
-+    if (fd < 0) {
-+        fd = lo_inode_open(lo, inode, fi->flags);
-+        if (fd < 0) {
-+            return -fd;
-+        }
-     }
- 
-     pthread_mutex_lock(&lo->mutex);
-@@ -1709,9 +1748,10 @@ static int lo_do_open(struct lo_data *lo, struct lo_inode *inode,
- static void lo_create(fuse_req_t req, fuse_ino_t parent, const char *name,
-                       mode_t mode, struct fuse_file_info *fi)
- {
--    int fd;
-+    int fd = -1;
-     struct lo_data *lo = lo_data(req);
-     struct lo_inode *parent_inode;
-+    struct lo_inode *inode = NULL;
-     struct fuse_entry_param e;
-     int err;
-     struct lo_cred old = {};
-@@ -1737,36 +1777,38 @@ static void lo_create(fuse_req_t req, fuse_ino_t parent, const char *name,
- 
-     update_open_flags(lo->writeback, lo->allow_direct_io, fi);
- 
--    fd = openat(parent_inode->fd, name, (fi->flags | O_CREAT) & ~O_NOFOLLOW,
--                mode);
-+    /* Try to create a new file but don't open existing files */
-+    fd = openat(parent_inode->fd, name, fi->flags | O_CREAT | O_EXCL, mode);
-     err = fd == -1 ? errno : 0;
--    lo_restore_cred(&old);
- 
--    if (!err) {
--        ssize_t fh;
-+    lo_restore_cred(&old);
- 
--        pthread_mutex_lock(&lo->mutex);
--        fh = lo_add_fd_mapping(lo, fd);
--        pthread_mutex_unlock(&lo->mutex);
--        if (fh == -1) {
--            close(fd);
--            err = ENOMEM;
--            goto out;
--        }
-+    /* Ignore the error if file exists and O_EXCL was not given */
-+    if (err && (err != EEXIST || (fi->flags & O_EXCL))) {
-+        goto out;
-+    }
- 
--        fi->fh = fh;
--        err = lo_do_lookup(req, parent, name, &e, NULL);
-+    err = lo_do_lookup(req, parent, name, &e, &inode);
-+    if (err) {
-+        goto out;
-     }
--    if (lo->cache == CACHE_NONE) {
--        fi->direct_io = 1;
--    } else if (lo->cache == CACHE_ALWAYS) {
--        fi->keep_cache = 1;
-+
-+    err = lo_do_open(lo, inode, fd, fi);
-+    fd = -1; /* lo_do_open() takes ownership of fd */
-+    if (err) {
-+        /* Undo lo_do_lookup() nlookup ref */
-+        unref_inode_lolocked(lo, inode, 1);
-     }
- 
- out:
-+    lo_inode_put(lo, &inode);
-     lo_inode_put(lo, &parent_inode);
- 
-     if (err) {
-+        if (fd >= 0) {
-+            close(fd);
-+        }
-+
-         fuse_reply_err(req, err);
-     } else {
-         fuse_reply_create(req, &e, fi);
-@@ -1780,7 +1822,6 @@ static struct lo_inode_plock *lookup_create_plock_ctx(struct lo_data *lo,
-                                                       pid_t pid, int *err)
- {
-     struct lo_inode_plock *plock;
--    char procname[64];
-     int fd;
- 
-     plock =
-@@ -1797,12 +1838,10 @@ static struct lo_inode_plock *lookup_create_plock_ctx(struct lo_data *lo,
-     }
- 
-     /* Open another instance of file which can be used for ofd locks. */
--    sprintf(procname, "%i", inode->fd);
--
-     /* TODO: What if file is not writable? */
--    fd = openat(lo->proc_self_fd, procname, O_RDWR);
--    if (fd == -1) {
--        *err = errno;
-+    fd = lo_inode_open(lo, inode, O_RDWR);
-+    if (fd < 0) {
-+        *err = -fd;
-         free(plock);
-         return NULL;
-     }
-@@ -1949,7 +1988,7 @@ static void lo_open(fuse_req_t req, fuse_ino_t ino, struct fuse_file_info *fi)
-         return;
-     }
- 
--    err = lo_do_open(lo, inode, fi);
-+    err = lo_do_open(lo, inode, -1, fi);
-     lo_inode_put(lo, &inode);
-     if (err) {
-         fuse_reply_err(req, err);
-@@ -2005,39 +2044,40 @@ static void lo_flush(fuse_req_t req, fuse_ino_t ino, struct fuse_file_info *fi)
- static void lo_fsync(fuse_req_t req, fuse_ino_t ino, int datasync,
-                      struct fuse_file_info *fi)
- {
-+    struct lo_inode *inode = lo_inode(req, ino);
-+    struct lo_data *lo = lo_data(req);
-     int res;
-     int fd;
--    char *buf;
- 
-     fuse_log(FUSE_LOG_DEBUG, "lo_fsync(ino=%" PRIu64 ", fi=0x%p)\n", ino,
-              (void *)fi);
- 
--    if (!fi) {
--        struct lo_data *lo = lo_data(req);
--
--        res = asprintf(&buf, "%i", lo_fd(req, ino));
--        if (res == -1) {
--            return (void)fuse_reply_err(req, errno);
--        }
-+    if (!inode) {
-+        fuse_reply_err(req, EBADF);
-+        return;
-+    }
- 
--        fd = openat(lo->proc_self_fd, buf, O_RDWR);
--        free(buf);
--        if (fd == -1) {
--            return (void)fuse_reply_err(req, errno);
-+    if (!fi) {
-+        fd = lo_inode_open(lo, inode, O_RDWR);
-+        if (fd < 0) {
-+            res = -fd;
-+            goto out;
-         }
-     } else {
-         fd = lo_fi_fd(req, fi);
-     }
- 
-     if (datasync) {
--        res = fdatasync(fd);
-+        res = fdatasync(fd) == -1 ? errno : 0;
-     } else {
--        res = fsync(fd);
-+        res = fsync(fd) == -1 ? errno : 0;
-     }
-     if (!fi) {
-         close(fd);
-     }
--    fuse_reply_err(req, res == -1 ? errno : 0);
-+out:
-+    lo_inode_put(lo, &inode);
-+    fuse_reply_err(req, res);
- }
- 
- static void lo_read(fuse_req_t req, fuse_ino_t ino, size_t size, off_t offset,

debian/patches/extra/0007-block-nbd-Delete-reconnect-delay-timer-when-done.patch

@@ -0,0 +1,40 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Hanna Reitz <hreitz@redhat.com>
+Date: Wed, 9 Feb 2022 15:02:52 +0100
+Subject: [PATCH] block/nbd: Delete reconnect delay timer when done
+
+We start the reconnect delay timer to cancel the reconnection attempt
+after a while.  Once nbd_co_do_establish_connection() has returned, this
+attempt is over, and we no longer need the timer.
+
+Delete it before returning from nbd_reconnect_attempt(), so that it does
+not persist beyond the I/O request that was paused for reconnecting; we
+do not want it to fire in a drained section, because all sort of things
+can happen in such a section (e.g. the AioContext might be changed, and
+we do not want the timer to fire in the wrong context; or the BDS might
+even be deleted, and so the timer CB would access already-freed data).
+
+Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
+Signed-off-by: Hanna Reitz <hreitz@redhat.com>
+---
+ block/nbd.c | 7 +++++++
+ 1 file changed, 7 insertions(+)
+
+diff --git a/block/nbd.c b/block/nbd.c
+index 5ef462db1b..b8e5a9b4cc 100644
+--- a/block/nbd.c
++++ b/block/nbd.c
+@@ -353,6 +353,13 @@ static coroutine_fn void nbd_reconnect_attempt(BDRVNBDState *s)
+     }
+ 
+     nbd_co_do_establish_connection(s->bs, NULL);
++
++    /*
++     * The reconnect attempt is done (maybe successfully, maybe not), so
++     * we no longer need this timer.  Delete it so it will not outlive
++     * this I/O request (so draining removes all timers).
++     */
++    reconnect_delay_timer_del(s);
+ }
+ 
+ static coroutine_fn int nbd_receive_replies(BDRVNBDState *s, uint64_t handle)

debian/patches/extra/0007-virtiofsd-Add-_llseek-to-the-seccomp-whitelist.patch

@@ -1,29 +0,0 @@
-From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
-From: Greg Kurz <groug@kaod.org>
-Date: Thu, 4 Feb 2021 18:34:38 +0000
-Subject: [PATCH] virtiofsd: Add _llseek to the seccomp whitelist
-
-This is how glibc implements lseek(2) on POWER.
-
-BugLink: https://bugzilla.redhat.com/show_bug.cgi?id=1917692
-Signed-off-by: Greg Kurz <groug@kaod.org>
-Message-Id: <20210121171540.1449777-1-groug@kaod.org>
-Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
-Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
-Signed-off-by: Thomas Lamprecht <t.lamprecht@proxmox.com>
----
- tools/virtiofsd/passthrough_seccomp.c | 1 +
- 1 file changed, 1 insertion(+)
-
-diff --git a/tools/virtiofsd/passthrough_seccomp.c b/tools/virtiofsd/passthrough_seccomp.c
-index 11623f56f2..bb8ef5b17f 100644
---- a/tools/virtiofsd/passthrough_seccomp.c
-+++ b/tools/virtiofsd/passthrough_seccomp.c
-@@ -68,6 +68,7 @@ static const int syscall_whitelist[] = {
-     SCMP_SYS(linkat),
-     SCMP_SYS(listxattr),
-     SCMP_SYS(lseek),
-+    SCMP_SYS(_llseek), /* For POWER */
-     SCMP_SYS(madvise),
-     SCMP_SYS(mkdirat),
-     SCMP_SYS(mknodat),

debian/patches/extra/0008-block-nbd-Assert-there-are-no-timers-when-closed.patch

@@ -0,0 +1,34 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Hanna Reitz <hreitz@redhat.com>
+Date: Wed, 9 Feb 2022 15:02:54 +0100
+Subject: [PATCH] block/nbd: Assert there are no timers when closed
+
+Our two timers must not remain armed beyond nbd_clear_bdrvstate(), or
+they will access freed data when they fire.
+
+This patch is separate from the patches that actually fix the issue
+(HEAD^^ and HEAD^) so that you can run the associated regression iotest
+(281) on a configuration that reproducibly exposes the bug.
+
+Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
+Signed-off-by: Hanna Reitz <hreitz@redhat.com>
+[FE: backport (open_timer doesn't exist yet in 6.2.0)]
+Signed-off-by: Fabian Ebner <f.ebner@proxmox.com>
+---
+ block/nbd.c | 3 +++
+ 1 file changed, 3 insertions(+)
+
+diff --git a/block/nbd.c b/block/nbd.c
+index b8e5a9b4cc..aab20125d8 100644
+--- a/block/nbd.c
++++ b/block/nbd.c
+@@ -108,6 +108,9 @@ static void nbd_clear_bdrvstate(BlockDriverState *bs)
+ 
+     yank_unregister_instance(BLOCKDEV_YANK_INSTANCE(bs->node_name));
+ 
++    /* Must not leave timers behind that would access freed data */
++    assert(!s->reconnect_delay_timer);
++
+     object_unref(OBJECT(s->tlscreds));
+     qapi_free_SocketAddress(s->saddr);
+     s->saddr = NULL;

debian/patches/extra/0008-virtiofsd-Add-restart_syscall-to-the-seccomp-whiteli.patch

@@ -1,31 +0,0 @@
-From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
-From: Greg Kurz <groug@kaod.org>
-Date: Thu, 4 Feb 2021 18:34:39 +0000
-Subject: [PATCH] virtiofsd: Add restart_syscall to the seccomp whitelist
-
-This is how linux restarts some system calls after SIGSTOP/SIGCONT.
-This is needed to avoid virtiofsd termination when resuming execution
-under GDB for example.
-
-Signed-off-by: Greg Kurz <groug@kaod.org>
-Message-Id: <20210201193305.136390-1-groug@kaod.org>
-Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
-Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
-Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
-Signed-off-by: Thomas Lamprecht <t.lamprecht@proxmox.com>
----
- tools/virtiofsd/passthrough_seccomp.c | 1 +
- 1 file changed, 1 insertion(+)
-
-diff --git a/tools/virtiofsd/passthrough_seccomp.c b/tools/virtiofsd/passthrough_seccomp.c
-index bb8ef5b17f..44d75e0e36 100644
---- a/tools/virtiofsd/passthrough_seccomp.c
-+++ b/tools/virtiofsd/passthrough_seccomp.c
-@@ -92,6 +92,7 @@ static const int syscall_whitelist[] = {
-     SCMP_SYS(renameat),
-     SCMP_SYS(renameat2),
-     SCMP_SYS(removexattr),
-+    SCMP_SYS(restart_syscall),
-     SCMP_SYS(rt_sigaction),
-     SCMP_SYS(rt_sigprocmask),
-     SCMP_SYS(rt_sigreturn),

debian/patches/extra/0009-block-nbd-Move-s-ioc-on-AioContext-change.patch

@@ -0,0 +1,90 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Hanna Reitz <hreitz@redhat.com>
+Date: Wed, 9 Feb 2022 15:02:57 +0100
+Subject: [PATCH] block/nbd: Move s->ioc on AioContext change
+
+s->ioc must always be attached to the NBD node's AioContext.  If that
+context changes, s->ioc must be attached to the new context.
+
+Buglink: https://bugzilla.redhat.com/show_bug.cgi?id=2033626
+Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
+Signed-off-by: Hanna Reitz <hreitz@redhat.com>
+[FE: backport (open_timer doesn't exist yet in 6.2.0)]
+Signed-off-by: Fabian Ebner <f.ebner@proxmox.com>
+---
+ block/nbd.c | 41 +++++++++++++++++++++++++++++++++++++++++
+ 1 file changed, 41 insertions(+)
+
+diff --git a/block/nbd.c b/block/nbd.c
+index aab20125d8..a3896c7f5f 100644
+--- a/block/nbd.c
++++ b/block/nbd.c
+@@ -2003,6 +2003,38 @@ static void nbd_cancel_in_flight(BlockDriverState *bs)
+     nbd_co_establish_connection_cancel(s->conn);
+ }
+ 
++static void nbd_attach_aio_context(BlockDriverState *bs,
++                                   AioContext *new_context)
++{
++    BDRVNBDState *s = bs->opaque;
++
++    /*
++     * The reconnect_delay_timer is scheduled in I/O paths when the
++     * connection is lost, to cancel the reconnection attempt after a
++     * given time.  Once this attempt is done (successfully or not),
++     * nbd_reconnect_attempt() ensures the timer is deleted before the
++     * respective I/O request is resumed.
++     * Since the AioContext can only be changed when a node is drained,
++     * the reconnect_delay_timer cannot be active here.
++     */
++    assert(!s->reconnect_delay_timer);
++
++    if (s->ioc) {
++        qio_channel_attach_aio_context(s->ioc, new_context);
++    }
++}
++
++static void nbd_detach_aio_context(BlockDriverState *bs)
++{
++    BDRVNBDState *s = bs->opaque;
++
++    assert(!s->reconnect_delay_timer);
++
++    if (s->ioc) {
++        qio_channel_detach_aio_context(s->ioc);
++    }
++}
++
+ static BlockDriver bdrv_nbd = {
+     .format_name                = "nbd",
+     .protocol_name              = "nbd",
+@@ -2026,6 +2058,9 @@ static BlockDriver bdrv_nbd = {
+     .bdrv_dirname               = nbd_dirname,
+     .strong_runtime_opts        = nbd_strong_runtime_opts,
+     .bdrv_cancel_in_flight      = nbd_cancel_in_flight,
++
++    .bdrv_attach_aio_context    = nbd_attach_aio_context,
++    .bdrv_detach_aio_context    = nbd_detach_aio_context,
+ };
+ 
+ static BlockDriver bdrv_nbd_tcp = {
+@@ -2051,6 +2086,9 @@ static BlockDriver bdrv_nbd_tcp = {
+     .bdrv_dirname               = nbd_dirname,
+     .strong_runtime_opts        = nbd_strong_runtime_opts,
+     .bdrv_cancel_in_flight      = nbd_cancel_in_flight,
++
++    .bdrv_attach_aio_context    = nbd_attach_aio_context,
++    .bdrv_detach_aio_context    = nbd_detach_aio_context,
+ };
+ 
+ static BlockDriver bdrv_nbd_unix = {
+@@ -2076,6 +2114,9 @@ static BlockDriver bdrv_nbd_unix = {
+     .bdrv_dirname               = nbd_dirname,
+     .strong_runtime_opts        = nbd_strong_runtime_opts,
+     .bdrv_cancel_in_flight      = nbd_cancel_in_flight,
++
++    .bdrv_attach_aio_context    = nbd_attach_aio_context,
++    .bdrv_detach_aio_context    = nbd_detach_aio_context,
+ };
+ 
+ static void bdrv_nbd_init(void)

debian/patches/extra/0009-i386-acpi-restore-device-paths-for-pre-5.1-vms.patch

@@ -1,108 +0,0 @@
-From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
-From: Vitaly Cheptsov <cheptsov@ispras.ru>
-Date: Tue, 2 Mar 2021 09:21:10 -0500
-Subject: [PATCH] i386/acpi: restore device paths for pre-5.1 vms
-
-After fixing the _UID value for the primary PCI root bridge in
-af1b80ae it was discovered that this change updates Windows
-configuration in an incompatible way causing network configuration
-failure unless DHCP is used. More details provided on the list:
-
-https://lists.gnu.org/archive/html/qemu-devel/2021-02/msg08484.html
-
-This change reverts the _UID update from 1 to 0 for q35 and i440fx
-VMs before version 5.2 to maintain the original behaviour when
-upgrading.
-
-Cc: qemu-stable@nongnu.org
-Cc: qemu-devel@nongnu.org
-Reported-by: Thomas Lamprecht <t.lamprecht@proxmox.com>
-Suggested-by: Michael S. Tsirkin <mst@redhat.com>
-Signed-off-by: Vitaly Cheptsov <cheptsov@ispras.ru>
-Message-Id: <20210301195919.9333-1-cheptsov@ispras.ru>
-Tested-by: Thomas Lamprecht <t.lamprecht@proxmox.com>
-Reviewed-by: Igor Mammedov <imammedo@redhat.com>
-Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
-Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
-Fixes: af1b80ae56c9 ("i386/acpi: fix inconsistent QEMU/OVMF device paths")
----
- hw/i386/acpi-build.c | 4 ++--
- hw/i386/pc_piix.c    | 2 ++
- hw/i386/pc_q35.c     | 2 ++
- include/hw/i386/pc.h | 1 +
- 4 files changed, 7 insertions(+), 2 deletions(-)
-
-diff --git a/hw/i386/acpi-build.c b/hw/i386/acpi-build.c
-index 1f5c211245..b5616582a5 100644
---- a/hw/i386/acpi-build.c
-+++ b/hw/i386/acpi-build.c
-@@ -1513,7 +1513,7 @@ build_dsdt(GArray *table_data, BIOSLinker *linker,
-         dev = aml_device("PCI0");
-         aml_append(dev, aml_name_decl("_HID", aml_eisaid("PNP0A03")));
-         aml_append(dev, aml_name_decl("_ADR", aml_int(0)));
--        aml_append(dev, aml_name_decl("_UID", aml_int(0)));
-+        aml_append(dev, aml_name_decl("_UID", aml_int(pcmc->pci_root_uid)));
-         aml_append(sb_scope, dev);
-         aml_append(dsdt, sb_scope);
- 
-@@ -1530,7 +1530,7 @@ build_dsdt(GArray *table_data, BIOSLinker *linker,
-         aml_append(dev, aml_name_decl("_HID", aml_eisaid("PNP0A08")));
-         aml_append(dev, aml_name_decl("_CID", aml_eisaid("PNP0A03")));
-         aml_append(dev, aml_name_decl("_ADR", aml_int(0)));
--        aml_append(dev, aml_name_decl("_UID", aml_int(0)));
-+        aml_append(dev, aml_name_decl("_UID", aml_int(pcmc->pci_root_uid)));
-         aml_append(dev, build_q35_osc_method());
-         aml_append(sb_scope, dev);
- 
-diff --git a/hw/i386/pc_piix.c b/hw/i386/pc_piix.c
-index 13d1628f13..2524c96216 100644
---- a/hw/i386/pc_piix.c
-+++ b/hw/i386/pc_piix.c
-@@ -417,6 +417,7 @@ static void pc_i440fx_machine_options(MachineClass *m)
- {
-     PCMachineClass *pcmc = PC_MACHINE_CLASS(m);
-     pcmc->default_nic_model = "e1000";
-+    pcmc->pci_root_uid = 0;
- 
-     m->family = "pc_piix";
-     m->desc = "Standard PC (i440FX + PIIX, 1996)";
-@@ -448,6 +449,7 @@ static void pc_i440fx_5_1_machine_options(MachineClass *m)
-     compat_props_add(m->compat_props, hw_compat_5_1, hw_compat_5_1_len);
-     compat_props_add(m->compat_props, pc_compat_5_1, pc_compat_5_1_len);
-     pcmc->kvmclock_create_always = false;
-+    pcmc->pci_root_uid = 1;
- }
- 
- DEFINE_I440FX_MACHINE(v5_1, "pc-i440fx-5.1", NULL,
-diff --git a/hw/i386/pc_q35.c b/hw/i386/pc_q35.c
-index a3f4959c43..c58dad5ae3 100644
---- a/hw/i386/pc_q35.c
-+++ b/hw/i386/pc_q35.c
-@@ -329,6 +329,7 @@ static void pc_q35_machine_options(MachineClass *m)
- {
-     PCMachineClass *pcmc = PC_MACHINE_CLASS(m);
-     pcmc->default_nic_model = "e1000e";
-+    pcmc->pci_root_uid = 0;
- 
-     m->family = "pc_q35";
-     m->desc = "Standard PC (Q35 + ICH9, 2009)";
-@@ -364,6 +365,7 @@ static void pc_q35_5_1_machine_options(MachineClass *m)
-     compat_props_add(m->compat_props, hw_compat_5_1, hw_compat_5_1_len);
-     compat_props_add(m->compat_props, pc_compat_5_1, pc_compat_5_1_len);
-     pcmc->kvmclock_create_always = false;
-+    pcmc->pci_root_uid = 1;
- }
- 
- DEFINE_Q35_MACHINE(v5_1, "pc-q35-5.1", NULL,
-diff --git a/include/hw/i386/pc.h b/include/hw/i386/pc.h
-index 911e460097..7f8e1a791f 100644
---- a/include/hw/i386/pc.h
-+++ b/include/hw/i386/pc.h
-@@ -99,6 +99,7 @@ struct PCMachineClass {
-     int legacy_acpi_table_size;
-     unsigned acpi_data_size;
-     bool do_not_add_smb_acpi;
-+    int pci_root_uid;
- 
-     /* SMBIOS compat: */
-     bool smbios_defaults;

debian/patches/extra/0010-acpi-fix-QEMU-crash-when-started-with-SLIC-table.patch

@@ -0,0 +1,89 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Igor Mammedov <imammedo@redhat.com>
+Date: Mon, 27 Dec 2021 14:31:17 -0500
+Subject: [PATCH] acpi: fix QEMU crash when started with SLIC table
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+if QEMU is started with used provided SLIC table blob,
+
+  -acpitable sig=SLIC,oem_id='CRASH ',oem_table_id="ME",oem_rev=00002210,asl_compiler_id="",asl_compiler_rev=00000000,data=/dev/null
+it will assert with:
+
+  hw/acpi/aml-build.c:61:build_append_padded_str: assertion failed: (len <= maxlen)
+
+and following backtrace:
+
+  ...
+  build_append_padded_str (array=0x555556afe320, str=0x555556afdb2e "CRASH ME", maxlen=0x6, pad=0x20) at hw/acpi/aml-build.c:61
+  acpi_table_begin (desc=0x7fffffffd1b0, array=0x555556afe320) at hw/acpi/aml-build.c:1727
+  build_fadt (tbl=0x555556afe320, linker=0x555557ca3830, f=0x7fffffffd318, oem_id=0x555556afdb2e "CRASH ME", oem_table_id=0x555556afdb34 "ME") at hw/acpi/aml-build.c:2064
+  ...
+
+which happens due to acpi_table_begin() expecting NULL terminated
+oem_id and oem_table_id strings, which is normally the case, but
+in case of user provided SLIC table, oem_id points to table's blob
+directly and as result oem_id became longer than expected.
+
+Fix issue by handling oem_id consistently and make acpi_get_slic_oem()
+return NULL terminated strings.
+
+PS:
+After [1] refactoring, oem_id semantics became inconsistent, where
+NULL terminated string was coming from machine and old way pointer
+into byte array coming from -acpitable option. That used to work
+since build_header() wasn't expecting NULL terminated string and
+blindly copied the 1st 6 bytes only.
+
+However commit [2] broke that by replacing build_header() with
+acpi_table_begin(), which was expecting NULL terminated string
+and was checking oem_id size.
+
+1) 602b45820 ("acpi: Permit OEM ID and OEM table ID fields to be changed")
+2)
+Fixes: 4b56e1e4eb08 ("acpi: build_fadt: use acpi_table_begin()/acpi_table_end() instead of build_header()")
+Resolves: https://gitlab.com/qemu-project/qemu/-/issues/786
+Signed-off-by: Igor Mammedov <imammedo@redhat.com>
+Message-Id: <20211227193120.1084176-2-imammedo@redhat.com>
+Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
+Tested-by: Denis Lisov <dennis.lissov@gmail.com>
+Tested-by: Alexander Tsoy <alexander@tsoy.me>
+Cc: qemu-stable@nongnu.org
+Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
+Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
+(cherry picked from commit 8cdb99af45365727ac17f45239a9b8c1d5155c6d)
+Signed-off-by: Thomas Lamprecht <t.lamprecht@proxmox.com>
+---
+ hw/acpi/core.c       | 4 ++--
+ hw/i386/acpi-build.c | 2 ++
+ 2 files changed, 4 insertions(+), 2 deletions(-)
+
+diff --git a/hw/acpi/core.c b/hw/acpi/core.c
+index 1e004d0078..3e811bf03c 100644
+--- a/hw/acpi/core.c
++++ b/hw/acpi/core.c
+@@ -345,8 +345,8 @@ int acpi_get_slic_oem(AcpiSlicOem *oem)
+         struct acpi_table_header *hdr = (void *)(u - sizeof(hdr->_length));
+ 
+         if (memcmp(hdr->sig, "SLIC", 4) == 0) {
+-            oem->id = hdr->oem_id;
+-            oem->table_id = hdr->oem_table_id;
++            oem->id = g_strndup(hdr->oem_id, 6);
++            oem->table_id = g_strndup(hdr->oem_table_id, 8);
+             return 0;
+         }
+     }
+diff --git a/hw/i386/acpi-build.c b/hw/i386/acpi-build.c
+index a99c6e4fe3..570f82997b 100644
+--- a/hw/i386/acpi-build.c
++++ b/hw/i386/acpi-build.c
+@@ -2721,6 +2721,8 @@ void acpi_build(AcpiBuildTables *tables, MachineState *machine)
+ 
+     /* Cleanup memory that's no longer used. */
+     g_array_free(table_offsets, true);
++    g_free(slic_oem.id);
++    g_free(slic_oem.table_id);
+ }
+ 
+ static void acpi_ram_update(MemoryRegion *mr, GArray *data)

debian/patches/extra/0010-monitor-qmp-fix-race-on-CHR_EVENT_CLOSED-without-OOB.patch

@@ -1,48 +0,0 @@
-From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
-From: Stefan Reiter <s.reiter@proxmox.com>
-Date: Mon, 22 Mar 2021 15:20:04 +0100
-Subject: [PATCH] monitor/qmp: fix race on CHR_EVENT_CLOSED without OOB
-
-The QMP dispatcher coroutine holds the qmp_queue_lock over a yield
-point, where it expects to be rescheduled from the main context. If a
-CHR_EVENT_CLOSED event is received just then, it can race and block the
-main thread on the mutex in monitor_qmp_cleanup_queue_and_resume.
-
-Calculate need_resume immediately after we pop a request from the queue,
-so that we can release the mutex before yielding.
-
-Suggested-by: Wolfgang Bumiller <w.bumiller@proxmox.com>
-Signed-off-by: Stefan Reiter <s.reiter@proxmox.com>
----
- monitor/qmp.c | 11 ++++++-----
- 1 file changed, 6 insertions(+), 5 deletions(-)
-
-diff --git a/monitor/qmp.c b/monitor/qmp.c
-index 2e37d11bd3..2aff833f7a 100644
---- a/monitor/qmp.c
-+++ b/monitor/qmp.c
-@@ -252,6 +252,12 @@ void coroutine_fn monitor_qmp_dispatcher_co(void *data)
-             }
-         }
- 
-+        mon = req_obj->mon;
-+        /* qmp_oob_enabled() might change after "qmp_capabilities" */
-+        need_resume = !qmp_oob_enabled(mon) ||
-+            mon->qmp_requests->length == QMP_REQ_QUEUE_LEN_MAX - 1;
-+        qemu_mutex_unlock(&mon->qmp_queue_lock);
-+
-         if (qatomic_xchg(&qmp_dispatcher_co_busy, true) == true) {
-             /*
-              * Someone rescheduled us (probably because a new requests
-@@ -270,11 +276,6 @@ void coroutine_fn monitor_qmp_dispatcher_co(void *data)
-         aio_co_schedule(qemu_get_aio_context(), qmp_dispatcher_co);
-         qemu_coroutine_yield();
- 
--        mon = req_obj->mon;
--        /* qmp_oob_enabled() might change after "qmp_capabilities" */
--        need_resume = !qmp_oob_enabled(mon) ||
--            mon->qmp_requests->length == QMP_REQ_QUEUE_LEN_MAX - 1;
--        qemu_mutex_unlock(&mon->qmp_queue_lock);
-         if (req_obj->req) {
-             QDict *qdict = qobject_to(QDict, req_obj->req);
-             QObject *id = qdict ? qdict_get(qdict, "id") : NULL;

debian/patches/extra/0011-block-Fix-locking-in-qmp_block_resize.patch

@@ -1,42 +0,0 @@
-From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
-From: Kevin Wolf <kwolf@redhat.com>
-Date: Thu, 3 Dec 2020 18:23:10 +0100
-Subject: [PATCH] block: Fix locking in qmp_block_resize()
-
-The drain functions assume that we hold the AioContext lock of the
-drained block node. Make sure to actually take the lock.
-
-Cc: qemu-stable@nongnu.org
-Fixes: eb94b81a94bce112e6b206df846c1551aaf6cab6
-Signed-off-by: Kevin Wolf <kwolf@redhat.com>
-Message-Id: <20201203172311.68232-3-kwolf@redhat.com>
-Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
-Signed-off-by: Kevin Wolf <kwolf@redhat.com>
-Signed-off-by: Stefan Reiter <s.reiter@proxmox.com>
----
- blockdev.c | 5 ++++-
- 1 file changed, 4 insertions(+), 1 deletion(-)
-
-diff --git a/blockdev.c b/blockdev.c
-index fe6fb5dc1d..9a86e9fb4b 100644
---- a/blockdev.c
-+++ b/blockdev.c
-@@ -2481,14 +2481,17 @@ void coroutine_fn qmp_block_resize(bool has_device, const char *device,
-         goto out;
-     }
- 
-+    bdrv_co_lock(bs);
-     bdrv_drained_begin(bs);
-+    bdrv_co_unlock(bs);
-+
-     old_ctx = bdrv_co_enter(bs);
-     blk_truncate(blk, size, false, PREALLOC_MODE_OFF, 0, errp);
-     bdrv_co_leave(bs, old_ctx);
--    bdrv_drained_end(bs);
- 
- out:
-     bdrv_co_lock(bs);
-+    bdrv_drained_end(bs);
-     blk_unref(blk);
-     bdrv_co_unlock(bs);
- }

debian/patches/extra/0011-virtio-net-fix-map-leaking-on-error-during-receive.patch

@@ -0,0 +1,38 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Jason Wang <jasowang@redhat.com>
+Date: Tue, 8 Mar 2022 10:42:51 +0800
+Subject: [PATCH] virtio-net: fix map leaking on error during receive
+
+Commit bedd7e93d0196 ("virtio-net: fix use after unmap/free for sg")
+tries to fix the use after free of the sg by caching the virtqueue
+elements in an array and unmap them at once after receiving the
+packets, But it forgot to unmap the cached elements on error which
+will lead to leaking of mapping and other unexpected results.
+
+Fixing this by detaching the cached elements on error. This addresses
+CVE-2022-26353.
+
+Reported-by: Victor Tom <vv474172261@gmail.com>
+Cc: qemu-stable@nongnu.org
+Fixes: CVE-2022-26353
+Fixes: bedd7e93d0196 ("virtio-net: fix use after unmap/free for sg")
+Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
+Signed-off-by: Jason Wang <jasowang@redhat.com>
+(cherry picked from commit abe300d9d894f7138e1af7c8e9c88c04bfe98b37)
+Signed-off-by: Thomas Lamprecht <t.lamprecht@proxmox.com>
+---
+ hw/net/virtio-net.c | 1 +
+ 1 file changed, 1 insertion(+)
+
+diff --git a/hw/net/virtio-net.c b/hw/net/virtio-net.c
+index f2014d5ea0..e1f4748831 100644
+--- a/hw/net/virtio-net.c
++++ b/hw/net/virtio-net.c
+@@ -1862,6 +1862,7 @@ static ssize_t virtio_net_receive_rcu(NetClientState *nc, const uint8_t *buf,
+ 
+ err:
+     for (j = 0; j < i; j++) {
++        virtqueue_detach_element(q->rx_vq, elems[j], lens[j]);
+         g_free(elems[j]);
+     }
+ 

debian/patches/extra/0012-block-Fix-deadlock-in-bdrv_co_yield_to_drain.patch

@@ -1,118 +0,0 @@
-From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
-From: Kevin Wolf <kwolf@redhat.com>
-Date: Thu, 3 Dec 2020 18:23:11 +0100
-Subject: [PATCH] block: Fix deadlock in bdrv_co_yield_to_drain()
-
-If bdrv_co_yield_to_drain() is called for draining a block node that
-runs in a different AioContext, it keeps that AioContext locked while it
-yields and schedules a BH in the AioContext to do the actual drain.
-
-As long as executing the BH is the very next thing that the event loop
-of the node's AioContext does, this actually happens to work, but when
-it tries to execute something else that wants to take the AioContext
-lock, it will deadlock. (In the bug report, this other thing is a
-virtio-scsi device running virtio_scsi_data_plane_handle_cmd().)
-
-Instead, always drop the AioContext lock across the yield and reacquire
-it only when the coroutine is reentered. The BH needs to unconditionally
-take the lock for itself now.
-
-This fixes the 'block_resize' QMP command on a block node that runs in
-an iothread.
-
-Cc: qemu-stable@nongnu.org
-Fixes: eb94b81a94bce112e6b206df846c1551aaf6cab6
-Fixes: https://bugzilla.redhat.com/show_bug.cgi?id=1903511
-Signed-off-by: Kevin Wolf <kwolf@redhat.com>
-Message-Id: <20201203172311.68232-4-kwolf@redhat.com>
-Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
-Signed-off-by: Kevin Wolf <kwolf@redhat.com>
-Signed-off-by: Stefan Reiter <s.reiter@proxmox.com>
----
- block/io.c | 41 ++++++++++++++++++++++++-----------------
- 1 file changed, 24 insertions(+), 17 deletions(-)
-
-diff --git a/block/io.c b/block/io.c
-index ec5e152bb7..a9f56a9ab1 100644
---- a/block/io.c
-+++ b/block/io.c
-@@ -306,17 +306,7 @@ static void bdrv_co_drain_bh_cb(void *opaque)
- 
-     if (bs) {
-         AioContext *ctx = bdrv_get_aio_context(bs);
--        AioContext *co_ctx = qemu_coroutine_get_aio_context(co);
--
--        /*
--         * When the coroutine yielded, the lock for its home context was
--         * released, so we need to re-acquire it here. If it explicitly
--         * acquired a different context, the lock is still held and we don't
--         * want to lock it a second time (or AIO_WAIT_WHILE() would hang).
--         */
--        if (ctx == co_ctx) {
--            aio_context_acquire(ctx);
--        }
-+        aio_context_acquire(ctx);
-         bdrv_dec_in_flight(bs);
-         if (data->begin) {
-             assert(!data->drained_end_counter);
-@@ -328,9 +318,7 @@ static void bdrv_co_drain_bh_cb(void *opaque)
-                                 data->ignore_bds_parents,
-                                 data->drained_end_counter);
-         }
--        if (ctx == co_ctx) {
--            aio_context_release(ctx);
--        }
-+        aio_context_release(ctx);
-     } else {
-         assert(data->begin);
-         bdrv_drain_all_begin();
-@@ -348,13 +336,16 @@ static void coroutine_fn bdrv_co_yield_to_drain(BlockDriverState *bs,
-                                                 int *drained_end_counter)
- {
-     BdrvCoDrainData data;
-+    Coroutine *self = qemu_coroutine_self();
-+    AioContext *ctx = bdrv_get_aio_context(bs);
-+    AioContext *co_ctx = qemu_coroutine_get_aio_context(self);
- 
-     /* Calling bdrv_drain() from a BH ensures the current coroutine yields and
-      * other coroutines run if they were queued by aio_co_enter(). */
- 
-     assert(qemu_in_coroutine());
-     data = (BdrvCoDrainData) {
--        .co = qemu_coroutine_self(),
-+        .co = self,
-         .bs = bs,
-         .done = false,
-         .begin = begin,
-@@ -368,13 +359,29 @@ static void coroutine_fn bdrv_co_yield_to_drain(BlockDriverState *bs,
-     if (bs) {
-         bdrv_inc_in_flight(bs);
-     }
--    replay_bh_schedule_oneshot_event(bdrv_get_aio_context(bs),
--                                     bdrv_co_drain_bh_cb, &data);
-+
-+    /*
-+     * Temporarily drop the lock across yield or we would get deadlocks.
-+     * bdrv_co_drain_bh_cb() reaquires the lock as needed.
-+     *
-+     * When we yield below, the lock for the current context will be
-+     * released, so if this is actually the lock that protects bs, don't drop
-+     * it a second time.
-+     */
-+    if (ctx != co_ctx) {
-+        aio_context_release(ctx);
-+    }
-+    replay_bh_schedule_oneshot_event(ctx, bdrv_co_drain_bh_cb, &data);
- 
-     qemu_coroutine_yield();
-     /* If we are resumed from some other event (such as an aio completion or a
-      * timer callback), it is a bug in the caller that should be fixed. */
-     assert(data.done);
-+
-+    /* Reaquire the AioContext of bs if we dropped it */
-+    if (ctx != co_ctx) {
-+        aio_context_acquire(ctx);
-+    }
- }
- 
- void bdrv_do_drained_begin_quiesce(BlockDriverState *bs,

debian/patches/extra/0012-memory-Fix-incorrect-calls-of-log_global_start-stop.patch

@@ -0,0 +1,86 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Peter Xu <peterx@redhat.com>
+Date: Tue, 30 Nov 2021 16:00:28 +0800
+Subject: [PATCH] memory: Fix incorrect calls of log_global_start/stop
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+We should only call the log_global_start/stop when the global dirty track
+bitmask changes from zero<->non-zero.
+
+No real issue reported for this yet probably because no immediate user to
+enable both dirty rate measurement and migration at the same time.  However
+it'll be good to be prepared for it.
+
+Fixes: 63b41db4bc ("memory: make global_dirty_tracking a bitmask")
+Cc: qemu-stable@nongnu.org
+Cc: Hyman Huang <huangy81@chinatelecom.cn>
+Cc: Paolo Bonzini <pbonzini@redhat.com>
+Cc: Dr. David Alan Gilbert <dgilbert@redhat.com>
+Cc: Juan Quintela <quintela@redhat.com>
+Cc: David Hildenbrand <david@redhat.com>
+Signed-off-by: Peter Xu <peterx@redhat.com>
+Reviewed-by: David Hildenbrand <david@redhat.com>
+Message-Id: <20211130080028.6474-1-peterx@redhat.com>
+Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
+(cherry picked from commit 7b0538ed3a22ce30817f818449d10701fb0821f9)
+Signed-off-by: Thomas Lamprecht <t.lamprecht@proxmox.com>
+---
+ softmmu/memory.c | 27 ++++++++++++++-------------
+ 1 file changed, 14 insertions(+), 13 deletions(-)
+
+diff --git a/softmmu/memory.c b/softmmu/memory.c
+index 7340e19ff5..81d4bf1454 100644
+--- a/softmmu/memory.c
++++ b/softmmu/memory.c
+@@ -2773,6 +2773,8 @@ static VMChangeStateEntry *vmstate_change;
+ 
+ void memory_global_dirty_log_start(unsigned int flags)
+ {
++    unsigned int old_flags = global_dirty_tracking;
++
+     if (vmstate_change) {
+         qemu_del_vm_change_state_handler(vmstate_change);
+         vmstate_change = NULL;
+@@ -2781,15 +2783,14 @@ void memory_global_dirty_log_start(unsigned int flags)
+     assert(flags && !(flags & (~GLOBAL_DIRTY_MASK)));
+     assert(!(global_dirty_tracking & flags));
+     global_dirty_tracking |= flags;
+-
+     trace_global_dirty_changed(global_dirty_tracking);
+ 
+-    MEMORY_LISTENER_CALL_GLOBAL(log_global_start, Forward);
+-
+-    /* Refresh DIRTY_MEMORY_MIGRATION bit.  */
+-    memory_region_transaction_begin();
+-    memory_region_update_pending = true;
+-    memory_region_transaction_commit();
++    if (!old_flags) {
++        MEMORY_LISTENER_CALL_GLOBAL(log_global_start, Forward);
++        memory_region_transaction_begin();
++        memory_region_update_pending = true;
++        memory_region_transaction_commit();
++    }
+ }
+ 
+ static void memory_global_dirty_log_do_stop(unsigned int flags)
+@@ -2800,12 +2801,12 @@ static void memory_global_dirty_log_do_stop(unsigned int flags)
+ 
+     trace_global_dirty_changed(global_dirty_tracking);
+ 
+-    /* Refresh DIRTY_MEMORY_MIGRATION bit.  */
+-    memory_region_transaction_begin();
+-    memory_region_update_pending = true;
+-    memory_region_transaction_commit();
+-
+-    MEMORY_LISTENER_CALL_GLOBAL(log_global_stop, Reverse);
++    if (!global_dirty_tracking) {
++        memory_region_transaction_begin();
++        memory_region_update_pending = true;
++        memory_region_transaction_commit();
++        MEMORY_LISTENER_CALL_GLOBAL(log_global_stop, Reverse);
++    }
+ }
+ 
+ static void memory_vm_change_state_handler(void *opaque, bool running,

debian/patches/extra/0013-acpi-fix-OEM-ID-OEM-Table-ID-padding.patch

@@ -0,0 +1,59 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Igor Mammedov <imammedo@redhat.com>
+Date: Wed, 12 Jan 2022 08:03:31 -0500
+Subject: [PATCH] acpi: fix OEM ID/OEM Table ID padding
+
+Commit [2] broke original '\0' padding of OEM ID and OEM Table ID
+fields in headers of ACPI tables. While it doesn't have impact on
+default values since QEMU uses 6 and 8 characters long values
+respectively, it broke usecase where IDs are provided on QEMU CLI.
+It shouldn't affect guest (but may cause licensing verification
+issues in guest OS).
+One of the broken usecases is user supplied SLIC table with IDs
+shorter than max possible length, where [2] mangles IDs with extra
+spaces in RSDT and FADT tables whereas guest OS expects those to
+mirror the respective values of the used SLIC table.
+
+Fix it by replacing whitespace padding with '\0' padding in
+accordance with [1] and expectations of guest OS
+
+1) ACPI spec, v2.0b
+       17.2 AML Grammar Definition
+       ...
+       //OEM ID of up to 6 characters. If the OEM ID is
+       //shorter than 6 characters, it can be terminated
+       //with a NULL character.
+
+2)
+Fixes: 602b458201 ("acpi: Permit OEM ID and OEM table ID fields to be changed")
+Resolves: https://gitlab.com/qemu-project/qemu/-/issues/707
+Reported-by: Dmitry V. Orekhov <dima.orekhov@gmail.com>
+Signed-off-by: Igor Mammedov <imammedo@redhat.com>
+Cc: qemu-stable@nongnu.org
+Message-Id: <20220112130332.1648664-4-imammedo@redhat.com>
+Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
+Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
+Reviewed-by: Ani Sinha <ani@anisinha.ca>
+Tested-by: Dmitry V. Orekhov dima.orekhov@gmail.com
+(cherry picked from commit 748c030f360a940fe0c9382c8ca1649096c3a80d)
+Signed-off-by: Thomas Lamprecht <t.lamprecht@proxmox.com>
+---
+ hw/acpi/aml-build.c | 4 ++--
+ 1 file changed, 2 insertions(+), 2 deletions(-)
+
+diff --git a/hw/acpi/aml-build.c b/hw/acpi/aml-build.c
+index b3b3310df3..65148d5b9d 100644
+--- a/hw/acpi/aml-build.c
++++ b/hw/acpi/aml-build.c
+@@ -1724,9 +1724,9 @@ void acpi_table_begin(AcpiTable *desc, GArray *array)
+     build_append_int_noprefix(array, 0, 4); /* Length */
+     build_append_int_noprefix(array, desc->rev, 1); /* Revision */
+     build_append_int_noprefix(array, 0, 1); /* Checksum */
+-    build_append_padded_str(array, desc->oem_id, 6, ' '); /* OEMID */
++    build_append_padded_str(array, desc->oem_id, 6, '\0'); /* OEMID */
+     /* OEM Table ID */
+-    build_append_padded_str(array, desc->oem_table_id, 8, ' ');
++    build_append_padded_str(array, desc->oem_table_id, 8, '\0');
+     build_append_int_noprefix(array, 1, 4); /* OEM Revision */
+     g_array_append_vals(array, ACPI_BUILD_APPNAME8, 4); /* Creator ID */
+     build_append_int_noprefix(array, 1, 4); /* Creator Revision */

debian/patches/extra/0014-vhost-vsock-detach-the-virqueue-element-in-case-of-e.patch

@@ -0,0 +1,55 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Stefano Garzarella <sgarzare@redhat.com>
+Date: Mon, 28 Feb 2022 10:50:58 +0100
+Subject: [PATCH] vhost-vsock: detach the virqueue element in case of error
+
+In vhost_vsock_common_send_transport_reset(), if an element popped from
+the virtqueue is invalid, we should call virtqueue_detach_element() to
+detach it from the virtqueue before freeing its memory.
+
+Fixes: fc0b9b0e1c ("vhost-vsock: add virtio sockets device")
+Fixes: CVE-2022-26354
+Cc: qemu-stable@nongnu.org
+Reported-by: VictorV <vv474172261@gmail.com>
+Signed-off-by: Stefano Garzarella <sgarzare@redhat.com>
+Message-Id: <20220228095058.27899-1-sgarzare@redhat.com>
+Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
+Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
+Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
+(cherry picked from commit 8d1b247f3748ac4078524130c6d7ae42b6140aaf)
+Signed-off-by: Thomas Lamprecht <t.lamprecht@proxmox.com>
+---
+ hw/virtio/vhost-vsock-common.c | 10 +++++++---
+ 1 file changed, 7 insertions(+), 3 deletions(-)
+
+diff --git a/hw/virtio/vhost-vsock-common.c b/hw/virtio/vhost-vsock-common.c
+index 3f3771274e..ed706681ac 100644
+--- a/hw/virtio/vhost-vsock-common.c
++++ b/hw/virtio/vhost-vsock-common.c
+@@ -153,19 +153,23 @@ static void vhost_vsock_common_send_transport_reset(VHostVSockCommon *vvc)
+     if (elem->out_num) {
+         error_report("invalid vhost-vsock event virtqueue element with "
+                      "out buffers");
+-        goto out;
++        goto err;
+     }
+ 
+     if (iov_from_buf(elem->in_sg, elem->in_num, 0,
+                      &event, sizeof(event)) != sizeof(event)) {
+         error_report("vhost-vsock event virtqueue element is too short");
+-        goto out;
++        goto err;
+     }
+ 
+     virtqueue_push(vq, elem, sizeof(event));
+     virtio_notify(VIRTIO_DEVICE(vvc), vq);
+ 
+-out:
++    g_free(elem);
++    return;
++
++err:
++    virtqueue_detach_element(vq, elem, 0);
+     g_free(elem);
+ }
+ 

debian/patches/extra/0015-vhost-user-remove-VirtQ-notifier-restore.patch

@@ -0,0 +1,98 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Xueming Li <xuemingl@nvidia.com>
+Date: Mon, 7 Feb 2022 15:19:28 +0800
+Subject: [PATCH] vhost-user: remove VirtQ notifier restore
+
+Notifier set when vhost-user backend asks qemu to mmap an FD and
+offset. When vhost-user backend restart or getting killed, VQ notifier
+FD and mmap addresses become invalid. After backend restart, MR contains
+the invalid address will be restored and fail on notifier access.
+
+On the other hand, qemu should munmap the notifier, release underlying
+hardware resources to enable backend restart and allocate hardware
+notifier resources correctly.
+
+Qemu shouldn't reference and use resources of disconnected backend.
+
+This patch removes VQ notifier restore, uses the default vhost-user
+notifier to avoid invalid address access.
+
+After backend restart, the backend should ask qemu to install a hardware
+notifier if needed.
+
+Fixes: 44866521bd6e ("vhost-user: support registering external host notifiers")
+Cc: qemu-stable@nongnu.org
+Signed-off-by: Xueming Li <xuemingl@nvidia.com>
+Message-Id: <20220207071929.527149-2-xuemingl@nvidia.com>
+Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
+Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
+(cherry picked from commit e867144b73b3c5009266b6df07d5ff44acfb82c3)
+Signed-off-by: Thomas Lamprecht <t.lamprecht@proxmox.com>
+---
+ hw/virtio/vhost-user.c         | 19 +------------------
+ include/hw/virtio/vhost-user.h |  1 -
+ 2 files changed, 1 insertion(+), 19 deletions(-)
+
+diff --git a/hw/virtio/vhost-user.c b/hw/virtio/vhost-user.c
+index bf6e50223c..c671719e9b 100644
+--- a/hw/virtio/vhost-user.c
++++ b/hw/virtio/vhost-user.c
+@@ -1143,19 +1143,6 @@ static int vhost_user_set_vring_num(struct vhost_dev *dev,
+     return vhost_set_vring(dev, VHOST_USER_SET_VRING_NUM, ring);
+ }
+ 
+-static void vhost_user_host_notifier_restore(struct vhost_dev *dev,
+-                                             int queue_idx)
+-{
+-    struct vhost_user *u = dev->opaque;
+-    VhostUserHostNotifier *n = &u->user->notifier[queue_idx];
+-    VirtIODevice *vdev = dev->vdev;
+-
+-    if (n->addr && !n->set) {
+-        virtio_queue_set_host_notifier_mr(vdev, queue_idx, &n->mr, true);
+-        n->set = true;
+-    }
+-}
+-
+ static void vhost_user_host_notifier_remove(struct vhost_dev *dev,
+                                             int queue_idx)
+ {
+@@ -1163,17 +1150,14 @@ static void vhost_user_host_notifier_remove(struct vhost_dev *dev,
+     VhostUserHostNotifier *n = &u->user->notifier[queue_idx];
+     VirtIODevice *vdev = dev->vdev;
+ 
+-    if (n->addr && n->set) {
++    if (n->addr) {
+         virtio_queue_set_host_notifier_mr(vdev, queue_idx, &n->mr, false);
+-        n->set = false;
+     }
+ }
+ 
+ static int vhost_user_set_vring_base(struct vhost_dev *dev,
+                                      struct vhost_vring_state *ring)
+ {
+-    vhost_user_host_notifier_restore(dev, ring->index);
+-
+     return vhost_set_vring(dev, VHOST_USER_SET_VRING_BASE, ring);
+ }
+ 
+@@ -1538,7 +1522,6 @@ static int vhost_user_slave_handle_vring_host_notifier(struct vhost_dev *dev,
+     }
+ 
+     n->addr = addr;
+-    n->set = true;
+ 
+     return 0;
+ }
+diff --git a/include/hw/virtio/vhost-user.h b/include/hw/virtio/vhost-user.h
+index a9abca3288..f6012b2078 100644
+--- a/include/hw/virtio/vhost-user.h
++++ b/include/hw/virtio/vhost-user.h
+@@ -14,7 +14,6 @@
+ typedef struct VhostUserHostNotifier {
+     MemoryRegion mr;
+     void *addr;
+-    bool set;
+ } VhostUserHostNotifier;
+ 
+ typedef struct VhostUserState {

debian/patches/extra/0016-vhost-user-fix-VirtQ-notifier-cleanup.patch

@@ -0,0 +1,149 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Xueming Li <xuemingl@nvidia.com>
+Date: Mon, 7 Feb 2022 15:19:29 +0800
+Subject: [PATCH] vhost-user: fix VirtQ notifier cleanup
+
+When vhost-user device cleanup, remove notifier MR and munmaps notifier
+address in the event-handling thread, VM CPU thread writing the notifier
+in concurrent fails with an error of accessing invalid address. It
+happens because MR is still being referenced and accessed in another
+thread while the underlying notifier mmap address is being freed and
+becomes invalid.
+
+This patch calls RCU and munmap notifiers in the callback after the
+memory flatview update finish.
+
+Fixes: 44866521bd6e ("vhost-user: support registering external host notifiers")
+Cc: qemu-stable@nongnu.org
+Signed-off-by: Xueming Li <xuemingl@nvidia.com>
+Message-Id: <20220207071929.527149-3-xuemingl@nvidia.com>
+Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
+Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
+(cherry picked from commit 0b0af4d62f7002b31cd7b2762b26d2fcb76bb2ba)
+Signed-off-by: Thomas Lamprecht <t.lamprecht@proxmox.com>
+---
+ hw/virtio/vhost-user.c         | 48 ++++++++++++++++++++--------------
+ include/hw/virtio/vhost-user.h |  2 ++
+ 2 files changed, 31 insertions(+), 19 deletions(-)
+
+diff --git a/hw/virtio/vhost-user.c b/hw/virtio/vhost-user.c
+index c671719e9b..ed5f9a5471 100644
+--- a/hw/virtio/vhost-user.c
++++ b/hw/virtio/vhost-user.c
+@@ -25,6 +25,7 @@
+ #include "migration/migration.h"
+ #include "migration/postcopy-ram.h"
+ #include "trace.h"
++#include "exec/ramblock.h"
+ 
+ #include <sys/ioctl.h>
+ #include <sys/socket.h>
+@@ -1143,15 +1144,26 @@ static int vhost_user_set_vring_num(struct vhost_dev *dev,
+     return vhost_set_vring(dev, VHOST_USER_SET_VRING_NUM, ring);
+ }
+ 
+-static void vhost_user_host_notifier_remove(struct vhost_dev *dev,
+-                                            int queue_idx)
++static void vhost_user_host_notifier_free(VhostUserHostNotifier *n)
+ {
+-    struct vhost_user *u = dev->opaque;
+-    VhostUserHostNotifier *n = &u->user->notifier[queue_idx];
+-    VirtIODevice *vdev = dev->vdev;
++    assert(n && n->unmap_addr);
++    munmap(n->unmap_addr, qemu_real_host_page_size);
++    n->unmap_addr = NULL;
++}
++
++static void vhost_user_host_notifier_remove(VhostUserState *user,
++                                            VirtIODevice *vdev, int queue_idx)
++{
++    VhostUserHostNotifier *n = &user->notifier[queue_idx];
+ 
+     if (n->addr) {
+-        virtio_queue_set_host_notifier_mr(vdev, queue_idx, &n->mr, false);
++        if (vdev) {
++            virtio_queue_set_host_notifier_mr(vdev, queue_idx, &n->mr, false);
++        }
++        assert(!n->unmap_addr);
++        n->unmap_addr = n->addr;
++        n->addr = NULL;
++        call_rcu(n, vhost_user_host_notifier_free, rcu);
+     }
+ }
+ 
+@@ -1190,8 +1202,9 @@ static int vhost_user_get_vring_base(struct vhost_dev *dev,
+         .payload.state = *ring,
+         .hdr.size = sizeof(msg.payload.state),
+     };
++    struct vhost_user *u = dev->opaque;
+ 
+-    vhost_user_host_notifier_remove(dev, ring->index);
++    vhost_user_host_notifier_remove(u->user, dev->vdev, ring->index);
+ 
+     if (vhost_user_write(dev, &msg, NULL, 0) < 0) {
+         return -1;
+@@ -1486,12 +1499,7 @@ static int vhost_user_slave_handle_vring_host_notifier(struct vhost_dev *dev,
+ 
+     n = &user->notifier[queue_idx];
+ 
+-    if (n->addr) {
+-        virtio_queue_set_host_notifier_mr(vdev, queue_idx, &n->mr, false);
+-        object_unparent(OBJECT(&n->mr));
+-        munmap(n->addr, page_size);
+-        n->addr = NULL;
+-    }
++    vhost_user_host_notifier_remove(user, vdev, queue_idx);
+ 
+     if (area->u64 & VHOST_USER_VRING_NOFD_MASK) {
+         return 0;
+@@ -1510,9 +1518,12 @@ static int vhost_user_slave_handle_vring_host_notifier(struct vhost_dev *dev,
+ 
+     name = g_strdup_printf("vhost-user/host-notifier@%p mmaps[%d]",
+                            user, queue_idx);
+-    if (!n->mr.ram) /* Don't init again after suspend. */
++    if (!n->mr.ram) { /* Don't init again after suspend. */
+         memory_region_init_ram_device_ptr(&n->mr, OBJECT(vdev), name,
+                                           page_size, addr);
++    } else {
++        n->mr.ram_block->host = addr;
++    }
+     g_free(name);
+ 
+     if (virtio_queue_set_host_notifier_mr(vdev, queue_idx, &n->mr, true)) {
+@@ -2460,17 +2471,16 @@ bool vhost_user_init(VhostUserState *user, CharBackend *chr, Error **errp)
+ void vhost_user_cleanup(VhostUserState *user)
+ {
+     int i;
++    VhostUserHostNotifier *n;
+ 
+     if (!user->chr) {
+         return;
+     }
+     memory_region_transaction_begin();
+     for (i = 0; i < VIRTIO_QUEUE_MAX; i++) {
+-        if (user->notifier[i].addr) {
+-            object_unparent(OBJECT(&user->notifier[i].mr));
+-            munmap(user->notifier[i].addr, qemu_real_host_page_size);
+-            user->notifier[i].addr = NULL;
+-        }
++        n = &user->notifier[i];
++        vhost_user_host_notifier_remove(user, NULL, i);
++        object_unparent(OBJECT(&n->mr));
+     }
+     memory_region_transaction_commit();
+     user->chr = NULL;
+diff --git a/include/hw/virtio/vhost-user.h b/include/hw/virtio/vhost-user.h
+index f6012b2078..e44a41bb70 100644
+--- a/include/hw/virtio/vhost-user.h
++++ b/include/hw/virtio/vhost-user.h
+@@ -12,8 +12,10 @@
+ #include "hw/virtio/virtio.h"
+ 
+ typedef struct VhostUserHostNotifier {
++    struct rcu_head rcu;
+     MemoryRegion mr;
+     void *addr;
++    void *unmap_addr;
+ } VhostUserHostNotifier;
+ 
+ typedef struct VhostUserState {

debian/patches/extra/0017-virtio-fix-the-condition-for-iommu_platform-not-supp.patch

@@ -0,0 +1,101 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Halil Pasic <pasic@linux.ibm.com>
+Date: Mon, 7 Feb 2022 12:28:57 +0100
+Subject: [PATCH] virtio: fix the condition for iommu_platform not supported
+
+The commit 04ceb61a40 ("virtio: Fail if iommu_platform is requested, but
+unsupported") claims to fail the device hotplug when iommu_platform
+is requested, but not supported by the (vhost) device. On the first
+glance the condition for detecting that situation looks perfect, but
+because a certain peculiarity of virtio_platform it ain't.
+
+In fact the aforementioned commit introduces a regression. It breaks
+virtio-fs support for Secure Execution, and most likely also for AMD SEV
+or any other confidential guest scenario that relies encrypted guest
+memory.  The same also applies to any other vhost device that does not
+support _F_ACCESS_PLATFORM.
+
+The peculiarity is that iommu_platform and _F_ACCESS_PLATFORM collates
+"device can not access all of the guest RAM" and "iova != gpa, thus
+device needs to translate iova".
+
+Confidential guest technologies currently rely on the device/hypervisor
+offering _F_ACCESS_PLATFORM, so that, after the feature has been
+negotiated, the guest  grants access to the portions of memory the
+device needs to see. So in for confidential guests, generally,
+_F_ACCESS_PLATFORM is about the restricted access to memory, but not
+about the addresses used being something else than guest physical
+addresses.
+
+This is the very reason for which commit f7ef7e6e3b ("vhost: correctly
+turn on VIRTIO_F_IOMMU_PLATFORM") fences _F_ACCESS_PLATFORM from the
+vhost device that does not need it, because on the vhost interface it
+only means "I/O address translation is needed".
+
+This patch takes inspiration from f7ef7e6e3b ("vhost: correctly turn on
+VIRTIO_F_IOMMU_PLATFORM"), and uses the same condition for detecting the
+situation when _F_ACCESS_PLATFORM is requested, but no I/O translation
+by the device, and thus no device capability is needed. In this
+situation claiming that the device does not support iommu_plattform=on
+is counter-productive. So let us stop doing that!
+
+Signed-off-by: Halil Pasic <pasic@linux.ibm.com>
+Reported-by: Jakob Naucke <Jakob.Naucke@ibm.com>
+Fixes: 04ceb61a40 ("virtio: Fail if iommu_platform is requested, but
+unsupported")
+Acked-by: Cornelia Huck <cohuck@redhat.com>
+Reviewed-by: Daniel Henrique Barboza <danielhb413@gmail.com>
+Tested-by: Daniel Henrique Barboza <danielhb413@gmail.com>
+Cc: Kevin Wolf <kwolf@redhat.com>
+Cc: qemu-stable@nongnu.org
+
+Message-Id: <20220207112857.607829-1-pasic@linux.ibm.com>
+Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
+Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
+Acked-by: Jason Wang <jasowang@redhat.com>
+(cherry picked from commit e65902a913bf31ba79a83a3bd3621108b85cf645)
+Signed-off-by: Thomas Lamprecht <t.lamprecht@proxmox.com>
+---
+ hw/virtio/virtio-bus.c | 12 +++++++-----
+ 1 file changed, 7 insertions(+), 5 deletions(-)
+
+diff --git a/hw/virtio/virtio-bus.c b/hw/virtio/virtio-bus.c
+index d23db98c56..0f69d1c742 100644
+--- a/hw/virtio/virtio-bus.c
++++ b/hw/virtio/virtio-bus.c
+@@ -48,6 +48,7 @@ void virtio_bus_device_plugged(VirtIODevice *vdev, Error **errp)
+     VirtioBusClass *klass = VIRTIO_BUS_GET_CLASS(bus);
+     VirtioDeviceClass *vdc = VIRTIO_DEVICE_GET_CLASS(vdev);
+     bool has_iommu = virtio_host_has_feature(vdev, VIRTIO_F_IOMMU_PLATFORM);
++    bool vdev_has_iommu;
+     Error *local_err = NULL;
+ 
+     DPRINTF("%s: plug device.\n", qbus->name);
+@@ -69,11 +70,6 @@ void virtio_bus_device_plugged(VirtIODevice *vdev, Error **errp)
+         return;
+     }
+ 
+-    if (has_iommu && !virtio_host_has_feature(vdev, VIRTIO_F_IOMMU_PLATFORM)) {
+-        error_setg(errp, "iommu_platform=true is not supported by the device");
+-        return;
+-    }
+-
+     if (klass->device_plugged != NULL) {
+         klass->device_plugged(qbus->parent, &local_err);
+     }
+@@ -82,9 +78,15 @@ void virtio_bus_device_plugged(VirtIODevice *vdev, Error **errp)
+         return;
+     }
+ 
++    vdev_has_iommu = virtio_host_has_feature(vdev, VIRTIO_F_IOMMU_PLATFORM);
+     if (klass->get_dma_as != NULL && has_iommu) {
+         virtio_add_feature(&vdev->host_features, VIRTIO_F_IOMMU_PLATFORM);
+         vdev->dma_as = klass->get_dma_as(qbus->parent);
++        if (!vdev_has_iommu && vdev->dma_as != &address_space_memory) {
++            error_setg(errp,
++                       "iommu_platform=true is not supported by the device");
++            return;
++        }
+     } else {
+         vdev->dma_as = &address_space_memory;
+     }

debian/patches/extra/0018-block-gluster-correctly-set-max_pdiscard-which-is-in.patch

@@ -0,0 +1,38 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Fabian Ebner <f.ebner@proxmox.com>
+Date: Fri, 6 May 2022 14:38:35 +0200
+Subject: [PATCH] block/gluster: correctly set max_pdiscard which is int64_t
+
+Previously, max_pdiscard would be zero in the following assertion:
+qemu-system-x86_64: ../block/io.c:3166: bdrv_co_pdiscard: Assertion
+`max_pdiscard >= bs->bl.request_alignment' failed.
+
+Fixes: 0c8022876f ("block: use int64_t instead of int in driver discard handlers")
+Signed-off-by: Fabian Ebner <f.ebner@proxmox.com>
+Signed-off-by: Thomas Lamprecht <t.lamprecht@proxmox.com>
+---
+ block/gluster.c | 4 ++--
+ 1 file changed, 2 insertions(+), 2 deletions(-)
+
+diff --git a/block/gluster.c b/block/gluster.c
+index 398976bc66..592e71b22a 100644
+--- a/block/gluster.c
++++ b/block/gluster.c
+@@ -891,7 +891,7 @@ out:
+ static void qemu_gluster_refresh_limits(BlockDriverState *bs, Error **errp)
+ {
+     bs->bl.max_transfer = GLUSTER_MAX_TRANSFER;
+-    bs->bl.max_pdiscard = SIZE_MAX;
++    bs->bl.max_pdiscard = INT64_MAX;
+ }
+ 
+ static int qemu_gluster_reopen_prepare(BDRVReopenState *state,
+@@ -1304,7 +1304,7 @@ static coroutine_fn int qemu_gluster_co_pdiscard(BlockDriverState *bs,
+     GlusterAIOCB acb;
+     BDRVGlusterState *s = bs->opaque;
+ 
+-    assert(bytes <= SIZE_MAX); /* rely on max_pdiscard */
++    assert(bytes <= INT64_MAX); /* rely on max_pdiscard */
+ 
+     acb.size = 0;
+     acb.ret = 0;

debian/patches/extra/0019-ui-vnc.c-Fixed-a-deadlock-bug.patch

@@ -0,0 +1,72 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Rao Lei <lei.rao@intel.com>
+Date: Fri, 6 May 2022 14:38:36 +0200
+Subject: [PATCH] ui/vnc.c: Fixed a deadlock bug.
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+The GDB statck is as follows:
+(gdb) bt
+0  __lll_lock_wait (futex=futex@entry=0x56211df20360, private=0) at lowlevellock.c:52
+1  0x00007f263caf20a3 in __GI___pthread_mutex_lock (mutex=0x56211df20360) at ../nptl/pthread_mutex_lock.c:80
+2  0x000056211a757364 in qemu_mutex_lock_impl (mutex=0x56211df20360, file=0x56211a804857 "../ui/vnc-jobs.h", line=60)
+    at ../util/qemu-thread-posix.c:80
+3  0x000056211a0ef8c7 in vnc_lock_output (vs=0x56211df14200) at ../ui/vnc-jobs.h:60
+4  0x000056211a0efcb7 in vnc_clipboard_send (vs=0x56211df14200, count=1, dwords=0x7ffdf1701338) at ../ui/vnc-clipboard.c:138
+5  0x000056211a0f0129 in vnc_clipboard_notify (notifier=0x56211df244c8, data=0x56211dd1bbf0) at ../ui/vnc-clipboard.c:209
+6  0x000056211a75dde8 in notifier_list_notify (list=0x56211afa17d0 <clipboard_notifiers>, data=0x56211dd1bbf0) at ../util/notify.c:39
+7  0x000056211a0bf0e6 in qemu_clipboard_update (info=0x56211dd1bbf0) at ../ui/clipboard.c:50
+8  0x000056211a0bf05d in qemu_clipboard_peer_release (peer=0x56211df244c0, selection=QEMU_CLIPBOARD_SELECTION_CLIPBOARD)
+    at ../ui/clipboard.c:41
+9  0x000056211a0bef9b in qemu_clipboard_peer_unregister (peer=0x56211df244c0) at ../ui/clipboard.c:19
+10 0x000056211a0d45f3 in vnc_disconnect_finish (vs=0x56211df14200) at ../ui/vnc.c:1358
+11 0x000056211a0d4c9d in vnc_client_read (vs=0x56211df14200) at ../ui/vnc.c:1611
+12 0x000056211a0d4df8 in vnc_client_io (ioc=0x56211ce70690, condition=G_IO_IN, opaque=0x56211df14200) at ../ui/vnc.c:1649
+13 0x000056211a5b976c in qio_channel_fd_source_dispatch
+    (source=0x56211ce50a00, callback=0x56211a0d4d71 <vnc_client_io>, user_data=0x56211df14200) at ../io/channel-watch.c:84
+14 0x00007f263ccede8e in g_main_context_dispatch () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
+15 0x000056211a77d4a1 in glib_pollfds_poll () at ../util/main-loop.c:232
+16 0x000056211a77d51f in os_host_main_loop_wait (timeout=958545) at ../util/main-loop.c:255
+17 0x000056211a77d630 in main_loop_wait (nonblocking=0) at ../util/main-loop.c:531
+18 0x000056211a45bc8e in qemu_main_loop () at ../softmmu/runstate.c:726
+19 0x000056211a0b45fa in main (argc=69, argv=0x7ffdf1701778, envp=0x7ffdf17019a8) at ../softmmu/main.c:50
+
+From the call trace, we can see it is a deadlock bug.
+vnc_disconnect_finish will acquire the output_mutex.
+But, the output_mutex will be acquired again in vnc_clipboard_send.
+Repeated locking will cause deadlock. So, I move
+qemu_clipboard_peer_unregister() behind vnc_unlock_output();
+
+Fixes: 0bf41cab93e ("ui/vnc: clipboard support")
+Signed-off-by: Lei Rao <lei.rao@intel.com>
+Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
+Message-Id: <20220105020808.597325-1-lei.rao@intel.com>
+Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
+(cherry-picked from commit 1dbbe6f172810026c51dc84ed927a3cc23017949)
+[FE: trivial backport for 6.2]
+Signed-off-by: Fabian Ebner <f.ebner@proxmox.com>
+Signed-off-by: Thomas Lamprecht <t.lamprecht@proxmox.com>
+---
+ ui/vnc.c | 4 ++--
+ 1 file changed, 2 insertions(+), 2 deletions(-)
+
+diff --git a/ui/vnc.c b/ui/vnc.c
+index af02522e84..b253e85c65 100644
+--- a/ui/vnc.c
++++ b/ui/vnc.c
+@@ -1354,12 +1354,12 @@ void vnc_disconnect_finish(VncState *vs)
+         /* last client gone */
+         vnc_update_server_surface(vs->vd);
+     }
++    vnc_unlock_output(vs);
++
+     if (vs->cbpeer.update.notify) {
+         qemu_clipboard_peer_unregister(&vs->cbpeer);
+     }
+ 
+-    vnc_unlock_output(vs);
+-
+     qemu_mutex_destroy(&vs->output_mutex);
+     if (vs->bh != NULL) {
+         qemu_bh_delete(vs->bh);

debian/patches/extra/0020-display-qxl-render-fix-race-condition-in-qxl_cursor-.patch

@@ -0,0 +1,37 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Mauro Matteo Cascella <mcascell@redhat.com>
+Date: Thu, 7 Apr 2022 10:11:06 +0200
+Subject: [PATCH] display/qxl-render: fix race condition in qxl_cursor
+ (CVE-2021-4207)
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+Avoid fetching 'width' and 'height' a second time to prevent possible
+race condition. Refer to security advisory
+https://starlabs.sg/advisories/22-4207/ for more information.
+
+Fixes: CVE-2021-4207
+Signed-off-by: Mauro Matteo Cascella <mcascell@redhat.com>
+Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
+Message-Id: <20220407081106.343235-1-mcascell@redhat.com>
+Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
+(cherry picked from commit 9569f5cb5b4bffa9d3ebc8ba7da1e03830a9a895)
+Signed-off-by: Thomas Lamprecht <t.lamprecht@proxmox.com>
+---
+ hw/display/qxl-render.c | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/hw/display/qxl-render.c b/hw/display/qxl-render.c
+index d28849b121..237ed293ba 100644
+--- a/hw/display/qxl-render.c
++++ b/hw/display/qxl-render.c
+@@ -266,7 +266,7 @@ static QEMUCursor *qxl_cursor(PCIQXLDevice *qxl, QXLCursor *cursor,
+         }
+         break;
+     case SPICE_CURSOR_TYPE_ALPHA:
+-        size = sizeof(uint32_t) * cursor->header.width * cursor->header.height;
++        size = sizeof(uint32_t) * c->width * c->height;
+         qxl_unpack_chunks(c->data, size, qxl, &cursor->chunk, group_id);
+         if (qxl->debug > 2) {
+             cursor_print_ascii_art(c, "qxl/alpha");

debian/patches/extra/0021-ui-cursor-fix-integer-overflow-in-cursor_alloc-CVE-2.patch

@@ -0,0 +1,83 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Mauro Matteo Cascella <mcascell@redhat.com>
+Date: Thu, 7 Apr 2022 10:17:12 +0200
+Subject: [PATCH] ui/cursor: fix integer overflow in cursor_alloc
+ (CVE-2021-4206)
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+Prevent potential integer overflow by limiting 'width' and 'height' to
+512x512. Also change 'datasize' type to size_t. Refer to security
+advisory https://starlabs.sg/advisories/22-4206/ for more information.
+
+Fixes: CVE-2021-4206
+Signed-off-by: Mauro Matteo Cascella <mcascell@redhat.com>
+Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
+Message-Id: <20220407081712.345609-1-mcascell@redhat.com>
+Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
+(cherry picked from commit fa892e9abb728e76afcf27323ab29c57fb0fe7aa)
+Signed-off-by: Thomas Lamprecht <t.lamprecht@proxmox.com>
+---
+ hw/display/qxl-render.c | 7 +++++++
+ hw/display/vmware_vga.c | 2 ++
+ ui/cursor.c             | 8 +++++++-
+ 3 files changed, 16 insertions(+), 1 deletion(-)
+
+diff --git a/hw/display/qxl-render.c b/hw/display/qxl-render.c
+index 237ed293ba..ca217004bf 100644
+--- a/hw/display/qxl-render.c
++++ b/hw/display/qxl-render.c
+@@ -247,6 +247,13 @@ static QEMUCursor *qxl_cursor(PCIQXLDevice *qxl, QXLCursor *cursor,
+     size_t size;
+ 
+     c = cursor_alloc(cursor->header.width, cursor->header.height);
++
++    if (!c) {
++        qxl_set_guest_bug(qxl, "%s: cursor %ux%u alloc error", __func__,
++                cursor->header.width, cursor->header.height);
++        goto fail;
++    }
++
+     c->hot_x = cursor->header.hot_spot_x;
+     c->hot_y = cursor->header.hot_spot_y;
+     switch (cursor->header.type) {
+diff --git a/hw/display/vmware_vga.c b/hw/display/vmware_vga.c
+index e2969a6c81..2b81d6122f 100644
+--- a/hw/display/vmware_vga.c
++++ b/hw/display/vmware_vga.c
+@@ -509,6 +509,8 @@ static inline void vmsvga_cursor_define(struct vmsvga_state_s *s,
+     int i, pixels;
+ 
+     qc = cursor_alloc(c->width, c->height);
++    assert(qc != NULL);
++
+     qc->hot_x = c->hot_x;
+     qc->hot_y = c->hot_y;
+     switch (c->bpp) {
+diff --git a/ui/cursor.c b/ui/cursor.c
+index 1d62ddd4d0..835f0802f9 100644
+--- a/ui/cursor.c
++++ b/ui/cursor.c
+@@ -46,6 +46,8 @@ static QEMUCursor *cursor_parse_xpm(const char *xpm[])
+ 
+     /* parse pixel data */
+     c = cursor_alloc(width, height);
++    assert(c != NULL);
++
+     for (pixel = 0, y = 0; y < height; y++, line++) {
+         for (x = 0; x < height; x++, pixel++) {
+             idx = xpm[line][x];
+@@ -91,7 +93,11 @@ QEMUCursor *cursor_builtin_left_ptr(void)
+ QEMUCursor *cursor_alloc(int width, int height)
+ {
+     QEMUCursor *c;
+-    int datasize = width * height * sizeof(uint32_t);
++    size_t datasize = width * height * sizeof(uint32_t);
++
++    if (width > 512 || height > 512) {
++        return NULL;
++    }
+ 
+     c = g_malloc0(sizeof(QEMUCursor) + datasize);
+     c->width  = width;

debian/patches/pve-qemu-6.2-vitastor.patch

@@ -0,0 +1,971 @@
+Index: qemu/block/meson.build
+===================================================================
+--- qemu.orig/block/meson.build
++++ qemu/block/meson.build
+@@ -91,6 +91,7 @@ foreach m : [
+   [libnfs, 'nfs', files('nfs.c')],
+   [libssh, 'ssh', files('ssh.c')],
+   [rbd, 'rbd', files('rbd.c')],
++  [vitastor, 'vitastor', files('vitastor.c')],
+ ]
+   if m[0].found()
+     module_ss = ss.source_set()
+Index: qemu/meson.build
+===================================================================
+--- qemu.orig/meson.build
++++ qemu/meson.build
+@@ -838,6 +838,26 @@ if not get_option('rbd').auto() or have_
+   endif
+ endif
+ 
++vitastor = not_found
++if not get_option('vitastor').auto() or have_block
++  libvitastor_client = cc.find_library('vitastor_client', has_headers: ['vitastor_c.h'],
++    required: get_option('vitastor'), kwargs: static_kwargs)
++  if libvitastor_client.found()
++    if cc.links('''
++      #include <vitastor_c.h>
++      int main(void) {
++        vitastor_c_create_qemu(0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0);
++        return 0;
++      }''', dependencies: libvitastor_client)
++      vitastor = declare_dependency(dependencies: libvitastor_client)
++    elif get_option('vitastor').enabled()
++      error('could not link libvitastor_client')
++    else
++      warning('could not link libvitastor_client, disabling')
++    endif
++  endif
++endif
++
+ glusterfs = not_found
+ glusterfs_ftruncate_has_stat = false
+ glusterfs_iocb_has_stat = false
+@@ -1459,6 +1479,7 @@ config_host_data.set('CONFIG_LINUX_AIO',
+ config_host_data.set('CONFIG_LINUX_IO_URING', linux_io_uring.found())
+ config_host_data.set('CONFIG_LIBPMEM', libpmem.found())
+ config_host_data.set('CONFIG_RBD', rbd.found())
++config_host_data.set('CONFIG_VITASTOR', vitastor.found())
+ config_host_data.set('CONFIG_SDL', sdl.found())
+ config_host_data.set('CONFIG_SDL_IMAGE', sdl_image.found())
+ config_host_data.set('CONFIG_SECCOMP', seccomp.found())
+@@ -3424,6 +3445,7 @@ if spice_protocol.found()
+   summary_info += {'  spice server support': spice}
+ endif
+ summary_info += {'rbd support':       rbd}
++summary_info += {'vitastor support':  vitastor}
+ summary_info += {'xfsctl support':    config_host.has_key('CONFIG_XFS')}
+ summary_info += {'smartcard support': cacard}
+ summary_info += {'U2F support':       u2f}
+Index: qemu/meson_options.txt
+===================================================================
+--- qemu.orig/meson_options.txt
++++ qemu/meson_options.txt
+@@ -121,6 +121,8 @@ option('lzo', type : 'feature', value :
+        description: 'lzo compression support')
+ option('rbd', type : 'feature', value : 'auto',
+        description: 'Ceph block device driver')
++option('vitastor', type : 'feature', value : 'auto',
++       description: 'Vitastor block device driver')
+ option('gtk', type : 'feature', value : 'auto',
+        description: 'GTK+ user interface')
+ option('sdl', type : 'feature', value : 'auto',
+Index: qemu/qapi/block-core.json
+===================================================================
+--- qemu.orig/qapi/block-core.json
++++ qemu/qapi/block-core.json
+@@ -3179,7 +3179,7 @@
+             'preallocate', 'qcow', 'qcow2', 'qed', 'quorum', 'raw', 'rbd',
+             { 'name': 'replication', 'if': 'CONFIG_REPLICATION' },
+             'pbs',
+-            'ssh', 'throttle', 'vdi', 'vhdx', 'vmdk', 'vpc', 'vvfat' ] }
++            'ssh', 'throttle', 'vdi', 'vhdx', 'vitastor', 'vmdk', 'vpc', 'vvfat' ] }
+ 
+ ##
+ # @BlockdevOptionsFile:
+@@ -4125,6 +4125,28 @@
+             '*server': ['InetSocketAddressBase'] } }
+ 
+ ##
++# @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.
+@@ -4520,6 +4542,7 @@
+       'throttle':   'BlockdevOptionsThrottle',
+       'vdi':        'BlockdevOptionsGenericFormat',
+       'vhdx':       'BlockdevOptionsGenericFormat',
++      'vitastor':   'BlockdevOptionsVitastor',
+       'vmdk':       'BlockdevOptionsGenericCOWFormat',
+       'vpc':        'BlockdevOptionsGenericFormat',
+       'vvfat':      'BlockdevOptionsVVFAT'
+@@ -4910,6 +4933,17 @@
+             '*encrypt' :        'RbdEncryptionCreateOptions' } }
+ 
+ ##
++# @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
+@@ -5108,6 +5142,7 @@
+       'ssh':            'BlockdevCreateOptionsSsh',
+       'vdi':            'BlockdevCreateOptionsVdi',
+       'vhdx':           'BlockdevCreateOptionsVhdx',
++      'vitastor':       'BlockdevCreateOptionsVitastor',
+       'vmdk':           'BlockdevCreateOptionsVmdk',
+       'vpc':            'BlockdevCreateOptionsVpc'
+   } }
+Index: qemu/scripts/ci/org.centos/stream/8/x86_64/configure
+===================================================================
+--- qemu.orig/scripts/ci/org.centos/stream/8/x86_64/configure
++++ qemu/scripts/ci/org.centos/stream/8/x86_64/configure
+@@ -31,7 +31,7 @@
+ --with-git=meson \
+ --with-git-submodules=update \
+ --target-list="x86_64-softmmu" \
+---block-drv-rw-whitelist="qcow2,raw,file,host_device,nbd,iscsi,rbd,blkdebug,luks,null-co,nvme,copy-on-read,throttle,gluster" \
++--block-drv-rw-whitelist="qcow2,raw,file,host_device,nbd,iscsi,rbd,vitastor,blkdebug,luks,null-co,nvme,copy-on-read,throttle,gluster" \
+ --audio-drv-list="" \
+ --block-drv-ro-whitelist="vmdk,vhdx,vpc,https,ssh" \
+ --with-coroutine=ucontext \
+@@ -183,6 +183,7 @@
+ --enable-opengl \
+ --enable-pie \
+ --enable-rbd \
++--enable-vitastor \
+ --enable-rdma \
+ --enable-seccomp \
+ --enable-snappy \
+Index: a/block/vitastor.c
+===================================================================
+--- /dev/null
++++ a/block/vitastor.c
+@@ -0,0 +1,797 @@
++// 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;
++    int skip_parents;
++    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;
++
++    uint64_t last_bitmap_inode, last_bitmap_offset, last_bitmap_len;
++    uint32_t last_bitmap_granularity;
++    uint8_t *last_bitmap;
++} VitastorClient;
++
++typedef struct VitastorRPC
++{
++    BlockDriverState *bs;
++    Coroutine *co;
++    QEMUIOVector *iov;
++    long ret;
++    int complete;
++    uint64_t inode, offset, len;
++    uint32_t bitmap_granularity;
++    uint8_t *bitmap;
++} 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, "skip-parents") ||
++            !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 void vitastor_aio_set_fd_handler(void *ctx, int fd, int unused1, IOHandler *fd_read, IOHandler *fd_write, void *unused2, void *opaque)
++{
++    aio_set_fd_handler(ctx, fd,
++#if QEMU_VERSION_MAJOR == 2 && QEMU_VERSION_MINOR >= 5 || QEMU_VERSION_MAJOR >= 3
++        0 /*is_external*/,
++#endif
++        fd_read, fd_write,
++#if QEMU_VERSION_MAJOR == 1 && QEMU_VERSION_MINOR <= 6 || QEMU_VERSION_MAJOR < 1
++        NULL /*io_flush*/,
++#endif
++#if QEMU_VERSION_MAJOR == 2 && QEMU_VERSION_MINOR >= 9 || QEMU_VERSION_MAJOR >= 3
++        NULL /*io_poll*/,
++#endif
++#if QEMU_VERSION_MAJOR >= 7
++        NULL /*io_poll_ready*/,
++#endif
++        opaque);
++}
++
++static int vitastor_file_open(BlockDriverState *bs, QDict *options, int flags, Error **errp)
++{
++    VitastorRPC task;
++    VitastorClient *client = bs->opaque;
++    void *image = NULL;
++    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->skip_parents = qdict_get_try_int(options, "skip-parents", 0);
++    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(
++        vitastor_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
++    );
++    image = client->image = g_strdup(qdict_get_try_str(options, "image"));
++    client->readonly = (flags & BDRV_O_RDWR) ? 1 : 0;
++    // Get image metadata (size and readonly flag) or just wait until the client is ready
++    if (!image)
++        client->image = (char*)"x";
++    task.complete = 0;
++    task.bs = bs;
++    if (qemu_in_coroutine())
++    {
++        vitastor_co_get_metadata(&task);
++    }
++    else
++    {
++        bdrv_coroutine_enter(bs, qemu_coroutine_create((void(*)(void*))vitastor_co_get_metadata, &task));
++        BDRV_POLL_WHILE(bs, !task.complete);
++    }
++    client->image = image;
++    if (client->image)
++    {
++        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 & (((uint64_t)1 << (64-POOL_ID_BITS)) - 1)) | (client->pool << (64-POOL_ID_BITS));
++        }
++        client->size = qdict_get_try_int(options, "size", 0);
++        vitastor_c_close_watch(client->proxy, (void*)task.ret);
++    }
++    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");
++    qdict_del(options, "skip-parents");
++    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);
++    free(client->last_bitmap);
++    client->last_bitmap = NULL;
++}
++
++#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,
++#if QEMU_VERSION_MAJOR >= 7 || QEMU_VERSION_MAJOR == 6 && QEMU_VERSION_MINOR >= 2
++    int64_t offset, int64_t bytes, QEMUIOVector *iov, BdrvRequestFlags flags
++#else
++    uint64_t offset, uint64_t bytes, QEMUIOVector *iov, int flags
++#endif
++)
++{
++    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,
++#if QEMU_VERSION_MAJOR >= 7 || QEMU_VERSION_MAJOR == 6 && QEMU_VERSION_MINOR >= 2
++    int64_t offset, int64_t bytes, QEMUIOVector *iov, BdrvRequestFlags flags
++#else
++    uint64_t offset, uint64_t bytes, QEMUIOVector *iov, int flags
++#endif
++)
++{
++    VitastorClient *client = bs->opaque;
++    VitastorRPC task;
++    vitastor_co_init_task(bs, &task);
++    task.iov = iov;
++
++    if (client->last_bitmap)
++    {
++        // Invalidate last bitmap on write
++        free(client->last_bitmap);
++        client->last_bitmap = NULL;
++    }
++
++    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 defined VITASTOR_C_API_VERSION && VITASTOR_C_API_VERSION >= 1
++#if QEMU_VERSION_MAJOR >= 2 || QEMU_VERSION_MAJOR == 1 && QEMU_VERSION_MINOR >= 7
++static void vitastor_co_read_bitmap_cb(void *opaque, long retval, uint8_t *bitmap)
++{
++    VitastorRPC *task = opaque;
++    VitastorClient *client = task->bs->opaque;
++    task->ret = retval;
++    task->complete = 1;
++    if (retval >= 0)
++    {
++        task->bitmap = bitmap;
++        if (client->last_bitmap_inode == task->inode &&
++            client->last_bitmap_offset == task->offset &&
++            client->last_bitmap_len == task->len)
++        {
++            free(client->last_bitmap);
++            client->last_bitmap = bitmap;
++        }
++    }
++    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 int coroutine_fn vitastor_co_block_status(
++    BlockDriverState *bs, bool want_zero, int64_t offset, int64_t bytes,
++    int64_t *pnum, int64_t *map, BlockDriverState **file)
++{
++    // Allocated => return BDRV_BLOCK_DATA|BDRV_BLOCK_OFFSET_VALID
++    // Not allocated => return 0
++    // Error => return -errno
++    // Set pnum to length of the extent, `*map` = `offset`, `*file` = `bs`
++    VitastorRPC task;
++    VitastorClient *client = bs->opaque;
++    uint64_t inode = client->watch ? vitastor_c_inode_get_num(client->watch) : client->inode;
++    uint8_t bit = 0;
++    if (client->last_bitmap && client->last_bitmap_inode == inode &&
++        client->last_bitmap_offset <= offset &&
++        client->last_bitmap_offset+client->last_bitmap_len >= (want_zero ? offset+1 : offset+bytes))
++    {
++        // Use the previously read bitmap
++        task.bitmap_granularity = client->last_bitmap_granularity;
++        task.offset = client->last_bitmap_offset;
++        task.len = client->last_bitmap_len;
++        task.bitmap = client->last_bitmap;
++    }
++    else
++    {
++        // Read bitmap from this position, rounding to full inode PG blocks
++        uint32_t block_size = vitastor_c_inode_get_block_size(client->proxy, inode);
++        if (!block_size)
++            return -EAGAIN;
++        // Init coroutine
++        vitastor_co_init_task(bs, &task);
++        free(client->last_bitmap);
++        task.inode = client->last_bitmap_inode = inode;
++        task.bitmap_granularity = client->last_bitmap_granularity = vitastor_c_inode_get_bitmap_granularity(client->proxy, inode);
++        task.offset = client->last_bitmap_offset = offset / block_size * block_size;
++        task.len = client->last_bitmap_len = (offset+bytes+block_size-1) / block_size * block_size - task.offset;
++        task.bitmap = client->last_bitmap = NULL;
++        qemu_mutex_lock(&client->mutex);
++        vitastor_c_read_bitmap(client->proxy, task.inode, task.offset, task.len, !client->skip_parents, vitastor_co_read_bitmap_cb, &task);
++        qemu_mutex_unlock(&client->mutex);
++        while (!task.complete)
++        {
++            qemu_coroutine_yield();
++        }
++        if (task.ret < 0)
++        {
++            // Error
++            return task.ret;
++        }
++    }
++    if (want_zero)
++    {
++        // Get precise mapping with all holes
++        uint64_t bmp_pos = (offset-task.offset) / task.bitmap_granularity;
++        uint64_t bmp_len = task.len / task.bitmap_granularity;
++        uint64_t bmp_end = bmp_pos+1;
++        bit = (task.bitmap[bmp_pos >> 3] >> (bmp_pos & 0x7)) & 1;
++        while (bmp_end < bmp_len && ((task.bitmap[bmp_end >> 3] >> (bmp_end & 0x7)) & 1) == bit)
++        {
++            bmp_end++;
++        }
++        *pnum = (bmp_end-bmp_pos) * task.bitmap_granularity;
++    }
++    else
++    {
++        // Get larger allocated extents, possibly with false positives
++        uint64_t bmp_pos = (offset-task.offset) / task.bitmap_granularity;
++        uint64_t bmp_end = (offset+bytes-task.offset) / task.bitmap_granularity - bmp_pos;
++        while (bmp_pos < bmp_end)
++        {
++            if (!(bmp_pos & 7) && bmp_end >= bmp_pos+8)
++            {
++                bit = bit || task.bitmap[bmp_pos >> 3];
++                bmp_pos += 8;
++            }
++            else
++            {
++                bit = bit || ((task.bitmap[bmp_pos >> 3] >> (bmp_pos & 0x7)) & 1);
++                bmp_pos++;
++            }
++        }
++        *pnum = bytes;
++    }
++    if (bit)
++    {
++        *map = offset;
++        *file = bs;
++    }
++    return (bit ? (BDRV_BLOCK_DATA|BDRV_BLOCK_OFFSET_VALID) : 0);
++}
++#endif
++#if QEMU_VERSION_MAJOR == 1 && QEMU_VERSION_MINOR >= 7 || QEMU_VERSION_MAJOR == 2 && QEMU_VERSION_MINOR < 12
++// QEMU 1.7-2.11
++static int64_t coroutine_fn vitastor_co_get_block_status(BlockDriverState *bs,
++    int64_t sector_num, int nb_sectors, int *pnum, BlockDriverState **file)
++{
++    int64_t map = 0;
++    int64_t pnumbytes = 0;
++    int r = vitastor_co_block_status(bs, 1, sector_num*BDRV_SECTOR_SIZE, nb_sectors*BDRV_SECTOR_SIZE, &pnumbytes, &map, &file);
++    *pnum = pnumbytes/BDRV_SECTOR_SIZE;
++    return r;
++}
++#endif
++#endif
++
++#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 defined VITASTOR_C_API_VERSION && VITASTOR_C_API_VERSION >= 1
++#if QEMU_VERSION_MAJOR >= 3 || QEMU_VERSION_MAJOR == 2 && QEMU_VERSION_MINOR >= 12
++    // For snapshot export
++    .bdrv_co_block_status           = vitastor_co_block_status,
++#elif QEMU_VERSION_MAJOR == 1 && QEMU_VERSION_MINOR >= 7 || QEMU_VERSION_MAJOR == 2 && QEMU_VERSION_MINOR < 12
++    .bdrv_co_get_block_status       = vitastor_co_get_block_status,
++#endif
++#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);

debian/patches/pve/0001-PVE-Config-block-file-change-locking-default-to-off.patch

@@ -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 d5fd1dbcd2..bda3e606dc 100644
+index b283093e5b..821405fd02 100644
 --- a/block/file-posix.c
 +++ b/block/file-posix.c
-@@ -508,7 +508,7 @@ static QemuOptsList raw_runtime_opts = {
+@@ -552,7 +552,7 @@ static QemuOptsList raw_runtime_opts = {
          {
              .name = "locking",
              .type = QEMU_OPT_STRING,
@@ -26,7 +26,7 @@ index d5fd1dbcd2..bda3e606dc 100644
          },
          {
              .name = "pr-manager",
-@@ -606,7 +606,7 @@ static int raw_open_common(BlockDriverState *bs, QDict *options,
+@@ -652,7 +652,7 @@ static int raw_open_common(BlockDriverState *bs, QDict *options,
          s->use_lock = false;
          break;
      case ON_OFF_AUTO_AUTO:

debian/patches/pve/0002-PVE-Config-Adjust-network-script-path-to-etc-kvm.patch

@@ -9,10 +9,10 @@ Signed-off-by: Thomas Lamprecht <t.lamprecht@proxmox.com>
  1 file changed, 2 insertions(+), 2 deletions(-)
 
 diff --git a/include/net/net.h b/include/net/net.h
-index 778fc787ca..fb2db6bb75 100644
+index 523136c7ac..c27859b4f6 100644
 --- a/include/net/net.h
 +++ b/include/net/net.h
-@@ -210,8 +210,8 @@ void netdev_add(QemuOpts *opts, Error **errp);
+@@ -226,8 +226,8 @@ 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);
  

debian/patches/pve/0003-PVE-Config-set-the-CPU-model-to-kvm64-32-instead-of-.patch

@@ -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 88e8586f8f..93563ee0c2 100644
+index 04f2b790c9..19fdbb981c 100644
 --- a/target/i386/cpu.h
 +++ b/target/i386/cpu.h
-@@ -1973,9 +1973,9 @@ uint64_t cpu_get_tsc(CPUX86State *env);
+@@ -2039,9 +2039,9 @@ uint64_t cpu_get_tsc(CPUX86State *env);
  #define CPU_RESOLVING_TYPE TYPE_X86_CPU
  
  #ifdef TARGET_X86_64
@@ -24,4 +24,4 @@ index 88e8586f8f..93563ee0c2 100644
 +#define TARGET_DEFAULT_CPU_TYPE X86_CPU_TYPE_NAME("kvm32")
  #endif
  
- #define cpu_signal_handler cpu_x86_signal_handler
+ #define cpu_list x86_cpu_list

debian/patches/pve/0004-PVE-Config-ui-spice-default-to-pve-certificates.patch

@@ -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 eea52f5389..d09ee7f09e 100644
+index 31974b8d6c..a3acdbd682 100644
 --- a/ui/spice-core.c
 +++ b/ui/spice-core.c
-@@ -667,32 +667,35 @@ static void qemu_spice_init(void)
+@@ -689,32 +689,35 @@ static void qemu_spice_init(void)
  
      if (tls_port) {
          x509_dir = qemu_opt_get(opts, "x509-dir");

debian/patches/pve/0005-PVE-Config-glusterfs-no-default-logfile-if-daemonize.patch

@@ -9,7 +9,7 @@ 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 4f1448e2bc..715f06394c 100644
+index 592e71b22a..aebfece6eb 100644
 --- a/block/gluster.c
 +++ b/block/gluster.c
 @@ -42,7 +42,7 @@

debian/patches/pve/0005-PVE-Config-smm_available-false.patch

@@ -1,24 +0,0 @@
-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 5944fc44ed..31b481b4e9 100644
---- a/hw/i386/x86.c
-+++ b/hw/i386/x86.c
-@@ -1115,7 +1115,7 @@ bool x86_machine_is_smm_enabled(const 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) {

debian/patches/pve/0006-PVE-Config-rbd-block-rbd-disable-rbd_cache_writethro.patch

@@ -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 9bd2bce716..c7195a2342 100644
+index def96292e0..a4b8fb482c 100644
 --- a/block/rbd.c
 +++ b/block/rbd.c
-@@ -609,6 +609,8 @@ static int qemu_rbd_connect(rados_t *cluster, rados_ioctx_t *io_ctx,
+@@ -820,6 +820,8 @@ static int qemu_rbd_connect(rados_t *cluster, rados_ioctx_t *io_ctx,
          rados_conf_set(*cluster, "rbd_cache", "false");
      }
  

debian/patches/pve/0007-PVE-Up-qmp-add-get_link_status.patch

@@ -11,10 +11,10 @@ Signed-off-by: Thomas Lamprecht <t.lamprecht@proxmox.com>
  3 files changed, 43 insertions(+)
 
 diff --git a/net/net.c b/net/net.c
-index 6a2c3d9567..a1e9514fb8 100644
+index f0d14dbfc1..6d476c47ef 100644
 --- a/net/net.c
 +++ b/net/net.c
-@@ -1277,6 +1277,33 @@ void hmp_info_network(Monitor *mon, const QDict *qdict)
+@@ -1334,6 +1334,33 @@ void hmp_info_network(Monitor *mon, const QDict *qdict)
      }
  }
  
@@ -49,7 +49,7 @@ index 6a2c3d9567..a1e9514fb8 100644
  {
      NetClientState *nc;
 diff --git a/qapi/net.json b/qapi/net.json
-index a3a1336001..b8092c4e20 100644
+index 7fab2e7cd8..74c9a6109e 100644
 --- a/qapi/net.json
 +++ b/qapi/net.json
 @@ -35,6 +35,21 @@
@@ -75,14 +75,14 @@ index a3a1336001..b8092c4e20 100644
  # @netdev_add:
  #
 diff --git a/qapi/pragma.json b/qapi/pragma.json
-index cffae27666..5a3e3de95f 100644
+index 3bc0335d1f..7c91ea3685 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',
+@@ -22,6 +22,7 @@
+         'system_reset',
+         'system_wakeup' ],
+     'command-returns-exceptions': [
++        'get_link_status',
          'human-monitor-command',
          'qom-get',
-         'query-migrate-cache-size',
+         'query-tpm-models',

debian/patches/pve/0008-PVE-Up-glusterfs-allow-partial-reads.patch

@@ -16,7 +16,7 @@ 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 715f06394c..6d02170d9b 100644
+index aebfece6eb..3b7ee2f649 100644
 --- a/block/gluster.c
 +++ b/block/gluster.c
 @@ -57,6 +57,7 @@ typedef struct GlusterAIOCB {
@@ -27,7 +27,7 @@ index 715f06394c..6d02170d9b 100644
  } GlusterAIOCB;
  
  typedef struct BDRVGlusterState {
-@@ -759,8 +760,10 @@ static void gluster_finish_aiocb(struct glfs_fd *fd, ssize_t ret,
+@@ -752,8 +753,10 @@ 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 715f06394c..6d02170d9b 100644
      }
  
      aio_co_schedule(acb->aio_context, acb->coroutine);
-@@ -1028,6 +1031,7 @@ static coroutine_fn int qemu_gluster_co_pwrite_zeroes(BlockDriverState *bs,
+@@ -1022,6 +1025,7 @@ 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, size, gluster_finish_aiocb, &acb);
+     ret = glfs_zerofill_async(s->fd, offset, bytes, gluster_finish_aiocb, &acb);
      if (ret < 0) {
-@@ -1209,9 +1213,11 @@ static coroutine_fn int qemu_gluster_co_rw(BlockDriverState *bs,
+@@ -1203,9 +1207,11 @@ 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 715f06394c..6d02170d9b 100644
          ret = glfs_preadv_async(s->fd, qiov->iov, qiov->niov, offset, 0,
                                  gluster_finish_aiocb, &acb);
      }
-@@ -1275,6 +1281,7 @@ static coroutine_fn int qemu_gluster_co_flush_to_disk(BlockDriverState *bs)
+@@ -1269,6 +1275,7 @@ 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 715f06394c..6d02170d9b 100644
  
      ret = glfs_fsync_async(s->fd, gluster_finish_aiocb, &acb);
      if (ret < 0) {
-@@ -1321,6 +1328,7 @@ static coroutine_fn int qemu_gluster_co_pdiscard(BlockDriverState *bs,
+@@ -1317,6 +1324,7 @@ 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, size, gluster_finish_aiocb, &acb);
+     ret = glfs_discard_async(s->fd, offset, bytes, gluster_finish_aiocb, &acb);
      if (ret < 0) {

debian/patches/pve/0009-PVE-Up-qemu-img-return-success-on-info-without-snaps.patch

@@ -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 f9050bfaad..7e6666b5f7 100644
+index f036a1d428..080ad9bca7 100644
 --- a/qemu-img.c
 +++ b/qemu-img.c
-@@ -3022,7 +3022,8 @@ static int img_info(int argc, char **argv)
+@@ -2989,7 +2989,8 @@ static int img_info(int argc, char **argv)
      list = collect_image_info_list(image_opts, filename, fmt, chain,
                                     force_share);
      if (!list) {

debian/patches/pve/0010-PVE-Up-qemu-img-dd-add-osize-and-read-from-to-stdin-.patch

@@ -33,11 +33,11 @@ Signed-off-by: Wolfgang Bumiller <w.bumiller@proxmox.com>
 Signed-off-by: Thomas Lamprecht <t.lamprecht@proxmox.com>
 ---
  qemu-img-cmds.hx |   4 +-
- qemu-img.c       | 191 +++++++++++++++++++++++++++++------------------
- 2 files changed, 121 insertions(+), 74 deletions(-)
+ qemu-img.c       | 187 +++++++++++++++++++++++++++++------------------
+ 2 files changed, 119 insertions(+), 72 deletions(-)
 
 diff --git a/qemu-img-cmds.hx b/qemu-img-cmds.hx
-index b3620f29e5..e70ef3dc91 100644
+index 72bcdcfbfa..0b2999f3ab 100644
 --- a/qemu-img-cmds.hx
 +++ b/qemu-img-cmds.hx
 @@ -58,9 +58,9 @@ SRST
@@ -53,10 +53,10 @@ index b3620f29e5..e70ef3dc91 100644
  
  DEF("info", img_info,
 diff --git a/qemu-img.c b/qemu-img.c
-index 7e6666b5f7..44cf942bd2 100644
+index 080ad9bca7..1f457d9e80 100644
 --- a/qemu-img.c
 +++ b/qemu-img.c
-@@ -4897,10 +4897,12 @@ static int img_bitmap(int argc, char **argv)
+@@ -4805,10 +4805,12 @@ static int img_bitmap(int argc, char **argv)
  #define C_IF      04
  #define C_OF      010
  #define C_SKIP    020
@@ -69,7 +69,7 @@ index 7e6666b5f7..44cf942bd2 100644
  };
  
  struct DdIo {
-@@ -4976,6 +4978,19 @@ static int img_dd_skip(const char *arg,
+@@ -4884,6 +4886,19 @@ static int img_dd_skip(const char *arg,
      return 0;
  }
  
@@ -89,7 +89,7 @@ index 7e6666b5f7..44cf942bd2 100644
  static int img_dd(int argc, char **argv)
  {
      int ret = 0;
-@@ -5016,6 +5031,7 @@ static int img_dd(int argc, char **argv)
+@@ -4924,6 +4939,7 @@ 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 },
@@ -97,7 +97,7 @@ index 7e6666b5f7..44cf942bd2 100644
          { NULL, NULL, 0 }
      };
      const struct option long_options[] = {
-@@ -5094,8 +5110,13 @@ static int img_dd(int argc, char **argv)
+@@ -4999,91 +5015,112 @@ static int img_dd(int argc, char **argv)
          arg = NULL;
      }
  
@@ -105,53 +105,30 @@ index 7e6666b5f7..44cf942bd2 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;
-+    }
+         ret = -1;
+         goto out;
+     }
+-
+-    blk1 = img_open(image_opts, in.filename, fmt, 0, false, false,
+-                    force_share);
+-
+-    if (!blk1) {
 +    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;
      }
-@@ -5107,85 +5128,101 @@ 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");
-+    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;
-     }
+-        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);
@@ -169,14 +146,50 @@ index 7e6666b5f7..44cf942bd2 100644
 -                     proto_drv->format_name);
 -        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;
++        if (!blk1) {
++            ret = -1;
++            goto out;
++        }
      }
 -    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) {
@@ -186,9 +199,11 @@ index 7e6666b5f7..44cf942bd2 100644
 +        }
 +        proto_drv = bdrv_find_protocol(out.filename, true, &local_err);
  
--    size = blk_getlength(blk1);
--    if (size < 0) {
--        error_report("Failed to get size for '%s'", in.filename);
+-    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;
 -    }
@@ -212,20 +227,18 @@ index 7e6666b5f7..44cf942bd2 100644
 +        create_opts = qemu_opts_append(create_opts, drv->create_opts);
 +        create_opts = qemu_opts_append(create_opts, proto_drv->create_opts);
  
--    if (dd.flags & C_COUNT && dd.count <= INT64_MAX / in.bsz &&
--        dd.count * in.bsz < size) {
--        size = dd.count * in.bsz;
--    }
+-    /* 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);
 +        opts = qemu_opts_create(create_opts, NULL, 0, &error_abort);
  
--    /* 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 (!blk2) {
+-        ret = -1;
+-        goto out;
 +        /* 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);
@@ -236,15 +249,7 @@ index 7e6666b5f7..44cf942bd2 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,
@@ -253,14 +258,7 @@ index 7e6666b5f7..44cf942bd2 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
@@ -268,10 +266,7 @@ index 7e6666b5f7..44cf942bd2 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;
@@ -279,7 +274,7 @@ index 7e6666b5f7..44cf942bd2 100644
      }
  
      if (dd.flags & C_SKIP && (in.offset > INT64_MAX / in.bsz ||
-@@ -5203,11 +5240,17 @@ static int img_dd(int argc, char **argv)
+@@ -5101,11 +5138,17 @@ static int img_dd(int argc, char **argv)
  
      for (out_pos = 0; in_pos < size; block_count++) {
          int in_ret, out_ret;
@@ -301,7 +296,7 @@ index 7e6666b5f7..44cf942bd2 100644
          }
          if (in_ret < 0) {
              error_report("error while reading from input image file: %s",
-@@ -5217,9 +5260,13 @@ static int img_dd(int argc, char **argv)
+@@ -5115,9 +5158,13 @@ static int img_dd(int argc, char **argv)
          }
          in_pos += in_ret;
  

debian/patches/pve/0011-PVE-Up-qemu-img-dd-add-isize-parameter.patch

@@ -15,10 +15,10 @@ Signed-off-by: Thomas Lamprecht <t.lamprecht@proxmox.com>
  1 file changed, 25 insertions(+), 3 deletions(-)
 
 diff --git a/qemu-img.c b/qemu-img.c
-index 44cf942bd2..5ce60e8a45 100644
+index 1f457d9e80..d9e8a8c4d4 100644
 --- a/qemu-img.c
 +++ b/qemu-img.c
-@@ -4898,11 +4898,13 @@ static int img_bitmap(int argc, char **argv)
+@@ -4806,11 +4806,13 @@ static int img_bitmap(int argc, char **argv)
  #define C_OF      010
  #define C_SKIP    020
  #define C_OSIZE   040
@@ -32,7 +32,7 @@ index 44cf942bd2..5ce60e8a45 100644
  };
  
  struct DdIo {
-@@ -4991,6 +4993,19 @@ static int img_dd_osize(const char *arg,
+@@ -4899,6 +4901,19 @@ static int img_dd_osize(const char *arg,
      return 0;
  }
  
@@ -52,7 +52,7 @@ index 44cf942bd2..5ce60e8a45 100644
  static int img_dd(int argc, char **argv)
  {
      int ret = 0;
-@@ -5005,12 +5020,14 @@ static int img_dd(int argc, char **argv)
+@@ -4913,12 +4928,14 @@ static int img_dd(int argc, char **argv)
      int c, i;
      const char *out_fmt = "raw";
      const char *fmt = NULL;
@@ -68,7 +68,7 @@ index 44cf942bd2..5ce60e8a45 100644
      };
      struct DdIo in = {
          .bsz = 512, /* Block size is by default 512 bytes */
-@@ -5032,6 +5049,7 @@ static int img_dd(int argc, char **argv)
+@@ -4940,6 +4957,7 @@ 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 },
@@ -76,7 +76,7 @@ index 44cf942bd2..5ce60e8a45 100644
          { NULL, NULL, 0 }
      };
      const struct option long_options[] = {
-@@ -5238,14 +5256,18 @@ static int img_dd(int argc, char **argv)
+@@ -5136,14 +5154,18 @@ static int img_dd(int argc, char **argv)
  
      in.buf = g_new(uint8_t, in.bsz);
  

debian/patches/pve/0012-PVE-Up-qemu-img-dd-add-n-skip_create.patch

@@ -0,0 +1,121 @@
+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: Fabian 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 d663dd92bd..a49badb158 100644
+--- a/docs/tools/qemu-img.rst
++++ b/docs/tools/qemu-img.rst
+@@ -208,6 +208,10 @@ 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
+@@ -488,7 +492,7 @@ 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.
+@@ -499,6 +503,11 @@ 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 0b2999f3ab..f3b2b1b4de 100644
+--- a/qemu-img-cmds.hx
++++ b/qemu-img-cmds.hx
+@@ -58,9 +58,9 @@ 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 d9e8a8c4d4..015d6d2ce4 100644
+--- a/qemu-img.c
++++ b/qemu-img.c
+@@ -4930,7 +4930,7 @@ 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,
+@@ -4968,7 +4968,7 @@ 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;
+         }
+@@ -4988,6 +4988,9 @@ static int img_dd(int argc, char **argv)
+         case 'h':
+             help();
+             break;
++        case 'n':
++            skip_create = true;
++            break;
+         case 'U':
+             force_share = true;
+             break;
+@@ -5118,13 +5121,15 @@ 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,

debian/patches/pve/0013-PVE-Up-qemu-img-dd-add-n-skip_create.patch

@@ -1,65 +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>
----
- qemu-img.c | 23 ++++++++++++++---------
- 1 file changed, 14 insertions(+), 9 deletions(-)
-
-diff --git a/qemu-img.c b/qemu-img.c
-index 5ce60e8a45..86bfd0288b 100644
---- a/qemu-img.c
-+++ b/qemu-img.c
-@@ -5022,7 +5022,7 @@ 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,
-@@ -5060,7 +5060,7 @@ 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;
-         }
-@@ -5080,6 +5080,9 @@ static int img_dd(int argc, char **argv)
-         case 'h':
-             help();
-             break;
-+        case 'n':
-+            skip_create = true;
-+            break;
-         case 'U':
-             force_share = true;
-             break;
-@@ -5220,13 +5223,15 @@ 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,

debian/patches/pve/0013-PVE-virtio-balloon-improve-query-balloon.patch

@@ -14,10 +14,10 @@ Signed-off-by: Thomas Lamprecht <t.lamprecht@proxmox.com>
  3 files changed, 81 insertions(+), 4 deletions(-)
 
 diff --git a/hw/virtio/virtio-balloon.c b/hw/virtio/virtio-balloon.c
-index b22b5beda3..6e581439bf 100644
+index 9a4f491b54..1faa16234e 100644
 --- a/hw/virtio/virtio-balloon.c
 +++ b/hw/virtio/virtio-balloon.c
-@@ -805,8 +805,37 @@ static uint64_t virtio_balloon_get_features(VirtIODevice *vdev, uint64_t f,
+@@ -812,8 +812,37 @@ static uint64_t virtio_balloon_get_features(VirtIODevice *vdev, uint64_t f,
  static void virtio_balloon_stat(void *opaque, BalloonInfo *info)
  {
      VirtIOBalloon *dev = opaque;
@@ -58,10 +58,10 @@ index b22b5beda3..6e581439bf 100644
  
  static void virtio_balloon_to_target(void *opaque, ram_addr_t target)
 diff --git a/monitor/hmp-cmds.c b/monitor/hmp-cmds.c
-index 65d8ff4849..705f08a8f1 100644
+index 2e91ccb738..e9fa9af6bd 100644
 --- a/monitor/hmp-cmds.c
 +++ b/monitor/hmp-cmds.c
-@@ -695,7 +695,35 @@ void hmp_info_balloon(Monitor *mon, const QDict *qdict)
+@@ -696,7 +696,35 @@ void hmp_info_balloon(Monitor *mon, const QDict *qdict)
          return;
      }
  
@@ -99,10 +99,10 @@ index 65d8ff4849..705f08a8f1 100644
      qapi_free_BalloonInfo(info);
  }
 diff --git a/qapi/machine.json b/qapi/machine.json
-index 7c9a263778..3e59199280 100644
+index 067e3f5378..91f3be6f44 100644
 --- a/qapi/machine.json
 +++ b/qapi/machine.json
-@@ -1205,10 +1205,30 @@
+@@ -1018,10 +1018,30 @@
  # @actual: the logical size of the VM in bytes
  #          Formula used: logical_vm_size = vm_ram_size - balloon_size
  #
@@ -122,7 +122,7 @@ index 7c9a263778..3e59199280 100644
 +#
 +# @max_mem: amount of memory (in bytes) assigned to the guest
 +#
- # Since: 0.14.0
+ # Since: 0.14
  #
  ##
 -{ 'struct': 'BalloonInfo', 'data': {'actual': 'int' } }

debian/patches/pve/0014-PVE-qapi-modify-query-machines.patch

@@ -13,10 +13,10 @@ 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 5362c80a18..3fcb82ce2f 100644
+index 4f4ab30f8c..76fff60a6b 100644
 --- a/hw/core/machine-qmp-cmds.c
 +++ b/hw/core/machine-qmp-cmds.c
-@@ -234,6 +234,12 @@ MachineInfoList *qmp_query_machines(Error **errp)
+@@ -99,6 +99,12 @@ 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;
@@ -30,19 +30,19 @@ index 5362c80a18..3fcb82ce2f 100644
              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 3e59199280..dfc1a49d3c 100644
+index 91f3be6f44..0905618e25 100644
 --- a/qapi/machine.json
 +++ b/qapi/machine.json
-@@ -318,6 +318,8 @@
+@@ -141,6 +141,8 @@
  #
  # @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 1.5.0)
+ #           (since 1.5)
  #
-@@ -339,7 +341,7 @@
+@@ -162,7 +164,7 @@
  ##
  { 'struct': 'MachineInfo',
    'data': { 'name': 'str', '*alias': 'str',

debian/patches/pve/0015-PVE-qapi-modify-spice-query.patch

@@ -12,29 +12,29 @@ Signed-off-by: Thomas Lamprecht <t.lamprecht@proxmox.com>
  2 files changed, 8 insertions(+)
 
 diff --git a/qapi/ui.json b/qapi/ui.json
-index 6c7b33cb72..39ff301d1e 100644
+index 4244c62c30..f946fbd8c1 100644
 --- a/qapi/ui.json
 +++ b/qapi/ui.json
-@@ -215,11 +215,14 @@
+@@ -333,11 +333,14 @@
  #
  # @channels: a list of @SpiceChannel for each active spice channel
  #
 +# @ticket: The last ticket set with set_password
 +#
- # Since: 0.14.0
+ # Since: 0.14
  ##
  { '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': 'defined(CONFIG_SPICE)' }
+   'if': 'CONFIG_SPICE' }
  
 diff --git a/ui/spice-core.c b/ui/spice-core.c
-index d09ee7f09e..da3d2644d1 100644
+index a3acdbd682..756776778d 100644
 --- a/ui/spice-core.c
 +++ b/ui/spice-core.c
-@@ -538,6 +538,11 @@ static SpiceInfo *qmp_query_spice_real(Error **errp)
+@@ -534,6 +534,11 @@ static SpiceInfo *qmp_query_spice_real(Error **errp)
      micro = SPICE_SERVER_VERSION & 0xff;
      info->compiled_version = g_strdup_printf("%d.%d.%d", major, minor, micro);
  

debian/patches/pve/0016-PVE-add-savevm-async-for-background-state-snapshots.patch

@@ -26,7 +26,7 @@ Signed-off-by: Stefan Reiter <s.reiter@proxmox.com>
 ---
  hmp-commands-info.hx         |  13 +
  hmp-commands.hx              |  33 ++
- include/migration/snapshot.h |   1 +
+ include/migration/snapshot.h |   2 +
  include/monitor/hmp.h        |   5 +
  migration/meson.build        |   1 +
  migration/savevm-async.c     | 598 +++++++++++++++++++++++++++++++++++
@@ -35,15 +35,15 @@ Signed-off-by: Stefan Reiter <s.reiter@proxmox.com>
  qapi/misc.json               |  32 ++
  qemu-options.hx              |  12 +
  softmmu/vl.c                 |  10 +
- 11 files changed, 796 insertions(+)
+ 11 files changed, 797 insertions(+)
  create mode 100644 migration/savevm-async.c
 
 diff --git a/hmp-commands-info.hx b/hmp-commands-info.hx
-index 117ba25f91..b3b797ca28 100644
+index 407a1da800..245f8acc55 100644
 --- a/hmp-commands-info.hx
 +++ b/hmp-commands-info.hx
-@@ -580,6 +580,19 @@ SRST
-     Show current migration xbzrle cache size.
+@@ -536,6 +536,19 @@ SRST
+     Show current migration parameters.
  ERST
  
 +    {
@@ -63,13 +63,13 @@ index 117ba25f91..b3b797ca28 100644
          .name       = "balloon",
          .args_type  = "",
 diff --git a/hmp-commands.hx b/hmp-commands.hx
-index ff2d7aa8f3..d294c234a5 100644
+index 5efb47fc32..1ad13b668b 100644
 --- a/hmp-commands.hx
 +++ b/hmp-commands.hx
-@@ -1866,3 +1866,36 @@ ERST
-         .flags      = "p",
+@@ -1746,3 +1746,36 @@ ERST
+                       "\n\t\t\t -b to specify dirty bitmap as method of calculation)",
+         .cmd        = hmp_calc_dirty_rate,
      },
- 
 +
 +    {
 +        .name       = "savevm-start",
@@ -104,21 +104,21 @@ index ff2d7aa8f3..d294c234a5 100644
 +        .coroutine  = true,
 +    },
 diff --git a/include/migration/snapshot.h b/include/migration/snapshot.h
-index c85b6ec75b..4411b7121d 100644
+index e72083b117..c846d37806 100644
 --- a/include/migration/snapshot.h
 +++ b/include/migration/snapshot.h
-@@ -17,5 +17,6 @@
+@@ -61,4 +61,6 @@ bool delete_snapshot(const char *name,
+                     bool has_devices, strList *devices,
+                     Error **errp);
  
- int save_snapshot(const char *name, Error **errp);
- int load_snapshot(const char *name, Error **errp);
 +int load_snapshot_from_blockdev(const char *filename, Error **errp);
- 
++
  #endif
 diff --git a/include/monitor/hmp.h b/include/monitor/hmp.h
-index ed2913fd18..4e06f89e8e 100644
+index 96d014826a..3a39ba41b5 100644
 --- a/include/monitor/hmp.h
 +++ b/include/monitor/hmp.h
-@@ -25,6 +25,7 @@ void hmp_info_status(Monitor *mon, const QDict *qdict);
+@@ -26,6 +26,7 @@ void hmp_info_status(Monitor *mon, const QDict *qdict);
  void hmp_info_uuid(Monitor *mon, const QDict *qdict);
  void hmp_info_chardev(Monitor *mon, const QDict *qdict);
  void hmp_info_mice(Monitor *mon, const QDict *qdict);
@@ -126,7 +126,7 @@ index ed2913fd18..4e06f89e8e 100644
  void hmp_info_migrate(Monitor *mon, const QDict *qdict);
  void hmp_info_migrate_capabilities(Monitor *mon, const QDict *qdict);
  void hmp_info_migrate_parameters(Monitor *mon, const QDict *qdict);
-@@ -83,6 +84,10 @@ void hmp_netdev_add(Monitor *mon, const QDict *qdict);
+@@ -80,6 +81,10 @@ void hmp_netdev_add(Monitor *mon, const QDict *qdict);
  void hmp_netdev_del(Monitor *mon, const QDict *qdict);
  void hmp_getfd(Monitor *mon, const QDict *qdict);
  void hmp_closefd(Monitor *mon, const QDict *qdict);
@@ -138,7 +138,7 @@ index ed2913fd18..4e06f89e8e 100644
  void hmp_screendump(Monitor *mon, const QDict *qdict);
  void hmp_chardev_add(Monitor *mon, const QDict *qdict);
 diff --git a/migration/meson.build b/migration/meson.build
-index 980e37865c..e62b79b60f 100644
+index f8714dcb15..ea9aedeefc 100644
 --- a/migration/meson.build
 +++ b/migration/meson.build
 @@ -23,6 +23,7 @@ softmmu_ss.add(files(
@@ -148,10 +148,10 @@ index 980e37865c..e62b79b60f 100644
 +  'savevm-async.c',
    'socket.c',
    'tls.c',
- ))
+ ), gnutls)
 diff --git a/migration/savevm-async.c b/migration/savevm-async.c
 new file mode 100644
-index 0000000000..593a619088
+index 0000000000..79a0cda906
 --- /dev/null
 +++ b/migration/savevm-async.c
 @@ -0,0 +1,598 @@
@@ -210,7 +210,7 @@ index 0000000000..593a619088
 +    int64_t total_time;
 +    QEMUBH *finalize_bh;
 +    Coroutine *co;
-+    QemuCoSleepState *target_close_wait;
++    QemuCoSleep *target_close_wait;
 +} snap_state;
 +
 +static bool savevm_aborted(void)
@@ -653,8 +653,8 @@ index 0000000000..593a619088
 +     * call exits the statefile will be closed and can be removed immediately */
 +    DPRINTF("savevm-end: waiting for cleanup\n");
 +    timeout = 30L * 1000 * 1000 * 1000;
-+    qemu_co_sleep_ns_wakeable(QEMU_CLOCK_REALTIME, timeout,
-+                              &snap_state.target_close_wait);
++    qemu_co_sleep_ns_wakeable(snap_state.target_close_wait,
++                              QEMU_CLOCK_REALTIME, timeout);
 +    snap_state.target_close_wait = NULL;
 +    if (snap_state.target) {
 +        save_snapshot_error("timeout waiting for target file close in "
@@ -754,10 +754,10 @@ index 0000000000..593a619088
 +    return ret;
 +}
 diff --git a/monitor/hmp-cmds.c b/monitor/hmp-cmds.c
-index 705f08a8f1..77ab152aab 100644
+index e9fa9af6bd..5000ce39d1 100644
 --- a/monitor/hmp-cmds.c
 +++ b/monitor/hmp-cmds.c
-@@ -1949,6 +1949,63 @@ void hmp_info_memory_devices(Monitor *mon, const QDict *qdict)
+@@ -1903,6 +1903,63 @@ void hmp_info_memory_devices(Monitor *mon, const QDict *qdict)
      hmp_handle_error(mon, err);
  }
  
@@ -822,10 +822,10 @@ index 705f08a8f1..77ab152aab 100644
  {
      IOThreadInfoList *info_list = qmp_query_iothreads(NULL);
 diff --git a/qapi/migration.json b/qapi/migration.json
-index 3c75820527..cb3627884c 100644
+index bbfd48cf0b..45686390a2 100644
 --- a/qapi/migration.json
 +++ b/qapi/migration.json
-@@ -242,6 +242,40 @@
+@@ -247,6 +247,40 @@
             '*compression': 'CompressionStats',
             '*socket-address': ['SocketAddress'] } }
  
@@ -867,10 +867,10 @@ index 3c75820527..cb3627884c 100644
  # @query-migrate:
  #
 diff --git a/qapi/misc.json b/qapi/misc.json
-index 40df513856..4f5333d960 100644
+index 358548abe1..25b3febc52 100644
 --- a/qapi/misc.json
 +++ b/qapi/misc.json
-@@ -476,6 +476,38 @@
+@@ -435,6 +435,38 @@
  ##
  { 'command': 'query-fdsets', 'returns': ['FdsetInfo'] }
  
@@ -910,10 +910,10 @@ index 40df513856..4f5333d960 100644
  # @CommandLineParameterType:
  #
 diff --git a/qemu-options.hx b/qemu-options.hx
-index 104632ea34..c1352312c2 100644
+index ae2c6dbbfc..423144abeb 100644
 --- a/qemu-options.hx
 +++ b/qemu-options.hx
-@@ -3903,6 +3903,18 @@ SRST
+@@ -4171,6 +4171,18 @@ SRST
      Start right away with a saved state (``loadvm`` in monitor)
  ERST
  
@@ -933,31 +933,21 @@ index 104632ea34..c1352312c2 100644
  DEF("daemonize", 0, QEMU_OPTION_daemonize, \
      "-daemonize      daemonize QEMU after initializing\n", QEMU_ARCH_ALL)
 diff --git a/softmmu/vl.c b/softmmu/vl.c
-index e6e0ad5a92..03152c816c 100644
+index 620a1f1367..fd82efb8b3 100644
 --- a/softmmu/vl.c
 +++ b/softmmu/vl.c
-@@ -2878,6 +2878,7 @@ void qemu_init(int argc, char **argv, char **envp)
-     int optind;
-     const char *optarg;
-     const char *loadvm = NULL;
-+    const char *loadstate = NULL;
-     MachineClass *machine_class;
-     const char *cpu_option;
-     const char *vga_model = NULL;
-@@ -3439,6 +3440,9 @@ void qemu_init(int argc, char **argv, char **envp)
-             case QEMU_OPTION_loadvm:
-                 loadvm = optarg;
-                 break;
-+            case QEMU_OPTION_loadstate:
-+                loadstate = optarg;
-+                break;
-             case QEMU_OPTION_full_screen:
-                 dpy.has_full_screen = true;
-                 dpy.full_screen = true;
-@@ -4478,6 +4482,12 @@ void qemu_init(int argc, char **argv, char **envp)
-             autostart = 0;
-             exit(1);
-         }
+@@ -156,6 +156,7 @@ static const char *incoming;
+ static const char *loadvm;
+ static const char *accelerators;
+ static QDict *machine_opts_dict;
++static const char *loadstate;
+ static QTAILQ_HEAD(, ObjectOption) object_opts = QTAILQ_HEAD_INITIALIZER(object_opts);
+ static QTAILQ_HEAD(, DeviceOption) device_opts = QTAILQ_HEAD_INITIALIZER(device_opts);
+ static ram_addr_t maxram_size;
+@@ -2743,6 +2744,12 @@ void qmp_x_exit_preconfig(Error **errp)
+ 
+     if (loadvm) {
+         load_snapshot(loadvm, NULL, false, NULL, &error_fatal);
 +    } else if (loadstate) {
 +        Error *local_err = NULL;
 +        if (load_snapshot_from_blockdev(loadstate, &local_err) < 0) {
@@ -967,3 +957,13 @@ index e6e0ad5a92..03152c816c 100644
      }
      if (replay_mode != REPLAY_MODE_NONE) {
          replay_vmstate_init();
+@@ -3284,6 +3291,9 @@ void qemu_init(int argc, char **argv, char **envp)
+             case QEMU_OPTION_loadvm:
+                 loadvm = optarg;
+                 break;
++            case QEMU_OPTION_loadstate:
++                loadstate = optarg;
++                break;
+             case QEMU_OPTION_full_screen:
+                 dpy.has_full_screen = true;
+                 dpy.full_screen = true;

debian/patches/pve/0017-PVE-add-optional-buffer-size-to-QEMUFile.patch

@@ -9,6 +9,7 @@ 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>
 ---
  migration/qemu-file.c    | 38 +++++++++++++++++++++++++-------------
  migration/qemu-file.h    |  1 +
@@ -16,7 +17,7 @@ Signed-off-by: Stefan Reiter <s.reiter@proxmox.com>
  3 files changed, 28 insertions(+), 15 deletions(-)
 
 diff --git a/migration/qemu-file.c b/migration/qemu-file.c
-index be21518c57..1926b5202c 100644
+index 6338d8e2ff..6697a93a7e 100644
 --- a/migration/qemu-file.c
 +++ b/migration/qemu-file.c
 @@ -30,8 +30,8 @@
@@ -40,34 +41,34 @@ index be21518c57..1926b5202c 100644
  
      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)
+@@ -103,7 +104,7 @@ 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 *qemu_fopen_ops(void *opaque, const QEMUFileOps *ops, bool has_ioc)
++QEMUFile *qemu_fopen_ops_sized(void *opaque, const QEMUFileOps *ops, bool has_ioc, size_t buffer_size)
  {
      QEMUFile *f;
  
-@@ -109,9 +110,17 @@ QEMUFile *qemu_fopen_ops(void *opaque, const QEMUFileOps *ops)
- 
+@@ -112,9 +113,17 @@ QEMUFile *qemu_fopen_ops(void *opaque, const QEMUFileOps *ops, bool has_ioc)
      f->opaque = opaque;
      f->ops = ops;
+     f->has_ioc = has_ioc;
 +    f->buf_allocated_size = buffer_size;
 +    f->buf = malloc(buffer_size);
 +
      return f;
  }
  
-+QEMUFile *qemu_fopen_ops(void *opaque, const QEMUFileOps *ops)
++QEMUFile *qemu_fopen_ops(void *opaque, const QEMUFileOps *ops, bool has_ioc)
 +{
-+    return qemu_fopen_ops_sized(opaque, ops, DEFAULT_IO_BUF_SIZE);
++    return qemu_fopen_ops_sized(opaque, ops, has_ioc, 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)
+@@ -349,7 +358,7 @@ static ssize_t qemu_fill_buffer(QEMUFile *f)
      }
  
      len = f->ops->get_buffer(f->opaque, f->buf + pending, f->pos,
@@ -76,7 +77,7 @@ index be21518c57..1926b5202c 100644
      if (len > 0) {
          f->buf_size += len;
          f->pos += len;
-@@ -386,6 +395,9 @@ int qemu_fclose(QEMUFile *f)
+@@ -389,6 +398,9 @@ int qemu_fclose(QEMUFile *f)
              ret = ret2;
          }
      }
@@ -86,7 +87,7 @@ index be21518c57..1926b5202c 100644
      /* 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)
+@@ -443,7 +455,7 @@ 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;
@@ -95,7 +96,7 @@ index be21518c57..1926b5202c 100644
              qemu_fflush(f);
          }
      }
-@@ -461,7 +473,7 @@ void qemu_put_buffer(QEMUFile *f, const uint8_t *buf, size_t size)
+@@ -469,7 +481,7 @@ void qemu_put_buffer(QEMUFile *f, const uint8_t *buf, size_t size)
      }
  
      while (size > 0) {
@@ -104,7 +105,7 @@ index be21518c57..1926b5202c 100644
          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)
+@@ -516,8 +528,8 @@ 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));
@@ -115,7 +116,7 @@ index be21518c57..1926b5202c 100644
  
      /* 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)
+@@ -567,7 +579,7 @@ size_t qemu_get_buffer(QEMUFile *f, uint8_t *buf, size_t size)
          size_t res;
          uint8_t *src;
  
@@ -124,16 +125,16 @@ index be21518c57..1926b5202c 100644
          if (res == 0) {
              return done;
          }
-@@ -593,7 +605,7 @@ size_t qemu_get_buffer(QEMUFile *f, uint8_t *buf, size_t size)
+@@ -601,7 +613,7 @@ 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;
+         uint8_t *src = NULL;
  
-@@ -618,7 +630,7 @@ int qemu_peek_byte(QEMUFile *f, int offset)
+@@ -626,7 +638,7 @@ int qemu_peek_byte(QEMUFile *f, int offset)
      int index = f->buf_index + offset;
  
      assert(!qemu_file_is_writable(f));
@@ -142,7 +143,7 @@ index be21518c57..1926b5202c 100644
  
      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,
+@@ -778,7 +790,7 @@ 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)
  {
@@ -152,19 +153,19 @@ index be21518c57..1926b5202c 100644
      if (blen < compressBound(size)) {
          return -1;
 diff --git a/migration/qemu-file.h b/migration/qemu-file.h
-index a9b6d6ccb7..8752d27c74 100644
+index 3f36d4dc8c..67501fd9cf 100644
 --- a/migration/qemu-file.h
 +++ b/migration/qemu-file.h
-@@ -120,6 +120,7 @@ typedef struct QEMUFileHooks {
+@@ -121,6 +121,7 @@ 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);
+ QEMUFile *qemu_fopen_ops(void *opaque, const QEMUFileOps *ops, bool has_ioc);
++QEMUFile *qemu_fopen_ops_sized(void *opaque, const QEMUFileOps *ops, bool has_ioc, 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/migration/savevm-async.c b/migration/savevm-async.c
-index 593a619088..cc2552d977 100644
+index 79a0cda906..970ee3b3fc 100644
 --- a/migration/savevm-async.c
 +++ b/migration/savevm-async.c
 @@ -418,7 +418,7 @@ void qmp_savevm_start(bool has_statefile, const char *statefile, Error **errp)
@@ -172,7 +173,7 @@ index 593a619088..cc2552d977 100644
      }
  
 -    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);
++    snap_state.file = qemu_fopen_ops_sized(&snap_state, &block_file_ops, false, 4 * 1024 * 1024);
  
      if (!snap_state.file) {
          error_set(errp, ERROR_CLASS_GENERIC_ERROR, "failed to open '%s'", statefile);
@@ -181,7 +182,7 @@ index 593a619088..cc2552d977 100644
  
      /* restore the VM state */
 -    f = qemu_fopen_ops(be, &loadstate_file_ops);
-+    f = qemu_fopen_ops_sized(be, &loadstate_file_ops, 4 * 1024 * 1024);
++    f = qemu_fopen_ops_sized(be, &loadstate_file_ops, false, 4 * 1024 * 1024);
      if (!f) {
          error_setg(errp, "Could not open VM state file");
          goto the_end;

debian/patches/pve/0018-PVE-block-add-the-zeroinit-block-driver-filter.patch

@@ -4,6 +4,8 @@ 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>
+[adapt to changed function signatures]
+Signed-off-by: Fabian Ebner <f.ebner@proxmox.com>
 ---
  block/meson.build |   1 +
  block/zeroinit.c  | 196 ++++++++++++++++++++++++++++++++++++++++++++++
@@ -11,20 +13,20 @@ Signed-off-by: Thomas Lamprecht <t.lamprecht@proxmox.com>
  create mode 100644 block/zeroinit.c
 
 diff --git a/block/meson.build b/block/meson.build
-index 5dcc1e5cce..c10d544864 100644
+index deb73ca389..c9d1fdca7d 100644
 --- a/block/meson.build
 +++ b/block/meson.build
-@@ -39,6 +39,7 @@ block_ss.add(files(
+@@ -41,6 +41,7 @@ block_ss.add(files(
    'vmdk.c',
    'vpc.c',
    'write-threshold.c',
 +  'zeroinit.c',
- ), zstd, zlib)
+ ), zstd, zlib, gnutls)
  
  softmmu_ss.add(when: 'CONFIG_TCG', if_true: files('blkreplay.c'))
 diff --git a/block/zeroinit.c b/block/zeroinit.c
 new file mode 100644
-index 0000000000..5529627f7e
+index 0000000000..20ee611f22
 --- /dev/null
 +++ b/block/zeroinit.c
 @@ -0,0 +1,196 @@
@@ -138,22 +140,22 @@ index 0000000000..5529627f7e
 +}
 +
 +static int coroutine_fn zeroinit_co_preadv(BlockDriverState *bs,
-+    uint64_t offset, uint64_t bytes, QEMUIOVector *qiov, int flags)
++    int64_t offset, int64_t bytes, QEMUIOVector *qiov, BdrvRequestFlags flags)
 +{
 +    return bdrv_co_preadv(bs->file, offset, bytes, qiov, flags);
 +}
 +
 +static int coroutine_fn zeroinit_co_pwrite_zeroes(BlockDriverState *bs, int64_t offset,
-+                                                 int count, BdrvRequestFlags flags)
++                                                 int64_t bytes, BdrvRequestFlags flags)
 +{
 +    BDRVZeroinitState *s = bs->opaque;
 +    if (offset >= s->extents)
 +        return 0;
-+    return bdrv_pwrite_zeroes(bs->file, offset, count, flags);
++    return bdrv_pwrite_zeroes(bs->file, offset, bytes, flags);
 +}
 +
 +static int coroutine_fn zeroinit_co_pwritev(BlockDriverState *bs,
-+    uint64_t offset, uint64_t bytes, QEMUIOVector *qiov, int flags)
++    int64_t offset, int64_t bytes, QEMUIOVector *qiov, BdrvRequestFlags flags)
 +{
 +    BDRVZeroinitState *s = bs->opaque;
 +    int64_t extents = offset + bytes;
@@ -174,9 +176,9 @@ index 0000000000..5529627f7e
 +}
 +
 +static int coroutine_fn zeroinit_co_pdiscard(BlockDriverState *bs,
-+                                             int64_t offset, int count)
++                                             int64_t offset, int64_t bytes)
 +{
-+    return bdrv_co_pdiscard(bs->file, offset, count);
++    return bdrv_co_pdiscard(bs->file, offset, bytes);
 +}
 +
 +static int zeroinit_co_truncate(BlockDriverState *bs, int64_t offset,

debian/patches/pve/0019-PVE-Add-dummy-id-command-line-parameter.patch

@@ -14,10 +14,10 @@ Signed-off-by: Thomas Lamprecht <t.lamprecht@proxmox.com>
  2 files changed, 11 insertions(+)
 
 diff --git a/qemu-options.hx b/qemu-options.hx
-index c1352312c2..9a0cb6780e 100644
+index 423144abeb..4879471aeb 100644
 --- a/qemu-options.hx
 +++ b/qemu-options.hx
-@@ -906,6 +906,9 @@ DEFHEADING()
+@@ -1019,6 +1019,9 @@ DEFHEADING()
  
  DEFHEADING(Block device options:)
  
@@ -28,20 +28,20 @@ index c1352312c2..9a0cb6780e 100644
      "-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/softmmu/vl.c b/softmmu/vl.c
-index 03152c816c..da204d24f0 100644
+index fd82efb8b3..eb05e5a000 100644
 --- a/softmmu/vl.c
 +++ b/softmmu/vl.c
-@@ -2866,6 +2866,7 @@ static char *find_datadir(void)
- void qemu_init(int argc, char **argv, char **envp)
- {
-     int i;
+@@ -2779,6 +2779,7 @@ void qemu_init(int argc, char **argv, char **envp)
+     MachineClass *machine_class;
+     bool userconfig = true;
+     FILE *vmstate_dump_file = NULL;
 +    long vm_id;
-     int snapshot, linux_boot;
-     const char *initrd_filename;
-     const char *kernel_filename, *kernel_cmdline;
-@@ -3557,6 +3558,13 @@ void qemu_init(int argc, char **argv, char **envp)
-                     exit(1);
-                 }
+ 
+     qemu_add_opts(&qemu_drive_opts);
+     qemu_add_drive_opts(&qemu_legacy_drive_opts);
+@@ -3421,6 +3422,13 @@ void qemu_init(int argc, char **argv, char **envp)
+                 machine_parse_property_opt(qemu_find_opts("smp-opts"),
+                                            "smp", optarg);
                  break;
 +            case QEMU_OPTION_id:
 +                vm_id = strtol(optarg, (char **)&optarg, 10);
@@ -51,5 +51,5 @@ index 03152c816c..da204d24f0 100644
 +                }
 +                break;
              case QEMU_OPTION_vnc:
-                 vnc_parse(optarg, &error_fatal);
+                 vnc_parse(optarg);
                  break;

debian/patches/pve/0020-PVE-Config-Revert-target-i386-disable-LINT0-after-re.patch

@@ -11,7 +11,7 @@ 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 502e94effc..590ef6ec8e 100644
+index 2a20982066..7968ad5a93 100644
 --- a/hw/intc/apic_common.c
 +++ b/hw/intc/apic_common.c
 @@ -278,6 +278,15 @@ static void apic_reset_common(DeviceState *dev)

debian/patches/pve/0021-PVE-Up-Config-file-posix-make-locking-optiono-on-cre.patch

@@ -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   | 61 +++++++++++++++++++++++++++++---------------
+ block/file-posix.c   | 59 ++++++++++++++++++++++++++++++--------------
  qapi/block-core.json |  3 ++-
- 2 files changed, 43 insertions(+), 21 deletions(-)
+ 2 files changed, 42 insertions(+), 20 deletions(-)
 
 diff --git a/block/file-posix.c b/block/file-posix.c
-index bda3e606dc..037839622e 100644
+index 821405fd02..e3b6c3c524 100644
 --- a/block/file-posix.c
 +++ b/block/file-posix.c
-@@ -2388,6 +2388,7 @@ raw_co_create(BlockdevCreateOptions *options, Error **errp)
+@@ -2465,6 +2465,7 @@ raw_co_create(BlockdevCreateOptions *options, Error **errp)
      int fd;
      uint64_t perm, shared;
      int result = 0;
@@ -24,7 +24,7 @@ index bda3e606dc..037839622e 100644
  
      /* Validate options and set default values */
      assert(options->driver == BLOCKDEV_DRIVER_FILE);
-@@ -2428,19 +2429,22 @@ raw_co_create(BlockdevCreateOptions *options, Error **errp)
+@@ -2505,19 +2506,22 @@ 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 bda3e606dc..037839622e 100644
      }
  
      /* Clear the file by truncating it to 0 */
-@@ -2494,13 +2498,15 @@ raw_co_create(BlockdevCreateOptions *options, Error **errp)
+@@ -2571,13 +2575,15 @@ raw_co_create(BlockdevCreateOptions *options, Error **errp)
      }
  
  out_unlock:
@@ -82,7 +82,7 @@ index bda3e606dc..037839622e 100644
      }
  
  out_close:
-@@ -2525,6 +2531,7 @@ static int coroutine_fn raw_co_create_opts(BlockDriver *drv,
+@@ -2602,6 +2608,7 @@ static int coroutine_fn raw_co_create_opts(BlockDriver *drv,
      PreallocMode prealloc;
      char *buf = NULL;
      Error *local_err = NULL;
@@ -90,7 +90,7 @@ index bda3e606dc..037839622e 100644
  
      /* Skip file: protocol prefix */
      strstart(filename, "file:", &filename);
-@@ -2547,6 +2554,18 @@ static int coroutine_fn raw_co_create_opts(BlockDriver *drv,
+@@ -2624,6 +2631,18 @@ static int coroutine_fn raw_co_create_opts(BlockDriver *drv,
          return -EINVAL;
      }
  
@@ -109,7 +109,7 @@ index bda3e606dc..037839622e 100644
      options = (BlockdevCreateOptions) {
          .driver     = BLOCKDEV_DRIVER_FILE,
          .u.file     = {
-@@ -2558,6 +2577,8 @@ static int coroutine_fn raw_co_create_opts(BlockDriver *drv,
+@@ -2635,6 +2654,8 @@ 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,
@@ -118,20 +118,11 @@ index bda3e606dc..037839622e 100644
          },
      };
      return raw_co_create(&options, errp);
-@@ -3104,7 +3125,7 @@ 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 9db3120716..d285622589 100644
+index 1d3dd9cb48..3f81d6a5c0 100644
 --- a/qapi/block-core.json
 +++ b/qapi/block-core.json
-@@ -4224,7 +4224,8 @@
+@@ -4445,7 +4445,8 @@
              'size':                 'size',
              '*preallocation':       'PreallocMode',
              '*nocow':               'bool',

debian/patches/pve/0022-PVE-monitor-disable-oob-capability.patch

@@ -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 b42f8c6af3..2e37d11bd3 100644
+index 6b8cfcf6d8..3ec67e32d3 100644
 --- a/monitor/qmp.c
 +++ b/monitor/qmp.c
-@@ -466,8 +466,7 @@ void monitor_init_qmp(Chardev *chr, bool pretty, Error **errp)
+@@ -519,8 +519,7 @@ 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 */

debian/patches/pve/0023-PVE-Compat-4.0-used-balloon-qemu-4-0-config-size-fal.patch

@@ -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 d0408049b5..5b38cf9356 100644
+index 53a99abc56..ad2cb2592e 100644
 --- a/hw/core/machine.c
 +++ b/hw/core/machine.c
-@@ -78,7 +78,8 @@ GlobalProperty hw_compat_4_0[] = {
+@@ -113,7 +113,8 @@ GlobalProperty hw_compat_4_0[] = {
      { "virtio-vga",     "edid", "false" },
      { "virtio-gpu-device", "edid", "false" },
      { "virtio-device", "use-started", "false" },

debian/patches/pve/0024-PVE-Allow-version-code-in-machine-type.patch

@@ -0,0 +1,128 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Dietmar Maurer <dietmar@proxmox.com>
+Date: Mon, 6 Apr 2020 12:16:55 +0200
+Subject: [PATCH] PVE: Allow version code in machine type
+
+E.g. pc-i440fx-4.0+pve3 would print 'pve3' as version code while
+selecting pc-i440fx-4.0 as machine type.
+
+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>
+---
+ hw/core/machine-qmp-cmds.c |  6 ++++++
+ include/hw/boards.h        |  2 ++
+ qapi/machine.json          |  4 +++-
+ softmmu/vl.c               | 25 +++++++++++++++++++++++++
+ 4 files changed, 36 insertions(+), 1 deletion(-)
+
+diff --git a/hw/core/machine-qmp-cmds.c b/hw/core/machine-qmp-cmds.c
+index 76fff60a6b..ec9201fb9a 100644
+--- a/hw/core/machine-qmp-cmds.c
++++ b/hw/core/machine-qmp-cmds.c
+@@ -103,6 +103,12 @@ 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 9c1c190104..51e04bde62 100644
+--- a/include/hw/boards.h
++++ b/include/hw/boards.h
+@@ -227,6 +227,8 @@ struct MachineClass {
+     const char *desc;
+     const char *deprecation_reason;
+ 
++    const char *pve_version;
++
+     void (*init)(MachineState *state);
+     void (*reset)(MachineState *state);
+     void (*wakeup)(MachineState *state);
+diff --git a/qapi/machine.json b/qapi/machine.json
+index 0905618e25..a05c46e253 100644
+--- a/qapi/machine.json
++++ b/qapi/machine.json
+@@ -160,6 +160,8 @@
+ #
+ # @default-ram-id: the default ID of initial RAM memory backend (since 5.2)
+ #
++# @pve-version: custom PVE version suffix specified as 'machine+pveN'
++#
+ # Since: 1.2
+ ##
+ { 'struct': 'MachineInfo',
+@@ -167,7 +169,7 @@
+             '*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' } }
++            '*default-ram-id': 'str', '*pve-version': 'str' } }
+ 
+ ##
+ # @query-machines:
+diff --git a/softmmu/vl.c b/softmmu/vl.c
+index eb05e5a000..f306d21d63 100644
+--- a/softmmu/vl.c
++++ b/softmmu/vl.c
+@@ -1655,6 +1655,7 @@ static const QEMUOption *lookup_opt(int argc, char **argv,
+ static MachineClass *select_machine(QDict *qdict, Error **errp)
+ {
+     const char *optarg = 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;
+@@ -1672,6 +1673,11 @@ static MachineClass *select_machine(QDict *qdict, Error **errp)
+         }
+     }
+ 
++    if (machine_class) {
++        machine_class->pve_version = g_strdup(pvever);
++        qdict_del(qdict, "pvever");
++    }
++
+     g_slist_free(machines);
+     if (local_err) {
+         error_append_hint(&local_err, "Use -machine help to list supported machines\n");
+@@ -3363,12 +3369,31 @@ void qemu_init(int argc, char **argv, char **envp)
+             case QEMU_OPTION_machine:
+                 {
+                     bool help;
++                    size_t pvever_index, name_len;
++                    const gchar *name;
++                    gchar *name_clean, *pvever;
+ 
+                     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:

debian/patches/pve/0025-PVE-Allow-version-code-in-machine-type.patch

@@ -1,109 +0,0 @@
-From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
-From: Dietmar Maurer <dietmar@proxmox.com>
-Date: Mon, 6 Apr 2020 12:16:55 +0200
-Subject: [PATCH] PVE: Allow version code in machine type
-
-E.g. pc-i440fx-4.0+pve3 would print 'pve3' as version code while
-selecting pc-i440fx-4.0 as machine type.
-
-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>
----
- hw/core/machine-qmp-cmds.c |  6 ++++++
- include/hw/boards.h        |  2 ++
- qapi/machine.json          |  4 +++-
- softmmu/vl.c               | 15 ++++++++++++++-
- 4 files changed, 25 insertions(+), 2 deletions(-)
-
-diff --git a/hw/core/machine-qmp-cmds.c b/hw/core/machine-qmp-cmds.c
-index 3fcb82ce2f..7868241bd5 100644
---- a/hw/core/machine-qmp-cmds.c
-+++ b/hw/core/machine-qmp-cmds.c
-@@ -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 a49e3a6b44..8e0a8c5571 100644
---- a/include/hw/boards.h
-+++ b/include/hw/boards.h
-@@ -165,6 +165,8 @@ struct MachineClass {
-     const char *desc;
-     const char *deprecation_reason;
- 
-+    const char *pve_version;
-+
-     void (*init)(MachineState *state);
-     void (*reset)(MachineState *state);
-     void (*wakeup)(MachineState *state);
-diff --git a/qapi/machine.json b/qapi/machine.json
-index dfc1a49d3c..32fc674042 100644
---- a/qapi/machine.json
-+++ b/qapi/machine.json
-@@ -337,6 +337,8 @@
- #
- # @default-ram-id: the default ID of initial RAM memory backend (since 5.2)
- #
-+# @pve-version: custom PVE version suffix specified as 'machine+pveN'
-+#
- # Since: 1.2.0
- ##
- { 'struct': 'MachineInfo',
-@@ -344,7 +346,7 @@
-             '*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' } }
-+            '*default-ram-id': 'str', '*pve-version': 'str' } }
- 
- ##
- # @query-machines:
-diff --git a/softmmu/vl.c b/softmmu/vl.c
-index da204d24f0..5b5512128e 100644
---- a/softmmu/vl.c
-+++ b/softmmu/vl.c
-@@ -2325,6 +2325,8 @@ static MachineClass *machine_parse(const char *name, GSList *machines)
- {
-     MachineClass *mc;
-     GSList *el;
-+    size_t pvever_index = 0;
-+    gchar *name_clean;
- 
-     if (is_help_option(name)) {
-         printf("Supported machines are:\n");
-@@ -2341,12 +2343,23 @@ static MachineClass *machine_parse(const char *name, GSList *machines)
-         exit(0);
-     }
- 
--    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];
-+    }
-+
-     return mc;
- }
- 

debian/patches/pve/0025-block-backup-move-bcs-bitmap-initialization-to-job-c.patch

@@ -0,0 +1,59 @@
+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 21d5983779..47e218857d 100644
+--- a/block/backup.c
++++ b/block/backup.c
+@@ -239,8 +239,8 @@ static void backup_init_bcs_bitmap(BackupBlockJob *job)
+         assert(ret);
+     } 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);
+     }
+@@ -254,8 +254,6 @@ 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;
+@@ -493,6 +491,8 @@ BlockJob *backup_job_create(const char *job_id, BlockDriverState *bs,
+     block_job_add_bdrv(&job->common, "target", target, 0, BLK_PERM_ALL,
+                        &error_abort);
+ 
++    backup_init_bcs_bitmap(job);
++
+     return &job->common;
+ 
+  error:

debian/patches/pve/0026-PVE-Backup-add-vma-backup-format-code.patch

@@ -3,26 +3,29 @@ From: Dietmar Maurer <dietmar@proxmox.com>
 Date: Mon, 6 Apr 2020 12:16:57 +0200
 Subject: [PATCH] PVE-Backup: add vma backup format code
 
+Signed-off-by: Thomas Lamprecht <t.lamprecht@proxmox.com>
+[FE: create: register all streams before entering coroutines]
+Signed-off-by: Fabian Ebner <f.ebner@proxmox.com>
 ---
  block/meson.build |   2 +
  meson.build       |   5 +
- vma-reader.c      | 857 ++++++++++++++++++++++++++++++++++++++++++++++
+ vma-reader.c      | 860 ++++++++++++++++++++++++++++++++++++++++++++++
  vma-writer.c      | 790 ++++++++++++++++++++++++++++++++++++++++++
- vma.c             | 839 +++++++++++++++++++++++++++++++++++++++++++++
+ vma.c             | 849 +++++++++++++++++++++++++++++++++++++++++++++
  vma.h             | 150 ++++++++
- 6 files changed, 2643 insertions(+)
+ 6 files changed, 2656 insertions(+)
  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 c10d544864..feffbc8623 100644
+index c9d1fdca7d..72081a9974 100644
 --- a/block/meson.build
 +++ b/block/meson.build
-@@ -42,6 +42,8 @@ block_ss.add(files(
+@@ -44,6 +44,8 @@ block_ss.add(files(
    'zeroinit.c',
- ), zstd, zlib)
+ ), zstd, zlib, gnutls)
  
 +block_ss.add(files('../vma-writer.c'), libuuid)
 +
@@ -30,23 +33,23 @@ index c10d544864..feffbc8623 100644
  
  block_ss.add(when: 'CONFIG_QCOW1', if_true: files('qcow.c'))
 diff --git a/meson.build b/meson.build
-index e3386196ba..d5b660516b 100644
+index 96de1a6ef9..54c23b9567 100644
 --- a/meson.build
 +++ b/meson.build
-@@ -725,6 +725,8 @@ keyutils = dependency('libkeyutils', required: false,
+@@ -1202,6 +1202,8 @@ keyutils = dependency('libkeyutils', required: false,
  
  has_gettid = cc.has_function('gettid')
  
 +libuuid = cc.find_library('uuid', required: true)
 +
- # Malloc tests
+ # libselinux
+ selinux = dependency('libselinux',
+                      required: get_option('selinux'),
+@@ -3070,6 +3072,9 @@ if have_tools
+                dependencies: [blockdev, qemuutil, gnutls, selinux],
+                install: true)
  
- malloc = []
-@@ -1907,6 +1909,9 @@ if have_tools
-   qemu_nbd = executable('qemu-nbd', files('qemu-nbd.c'),
-                dependencies: [blockdev, qemuutil], install: true)
- 
-+  vma = executable('vma', files('vma.c', 'vma-reader.c'),
++  vma = executable('vma', files('vma.c', 'vma-reader.c') + genh,
 +                   dependencies: [authz, block, crypto, io, qom], install: true)
 +
    subdir('storage-daemon')
@@ -54,10 +57,10 @@ index e3386196ba..d5b660516b 100644
    subdir('contrib/elf2dmp')
 diff --git a/vma-reader.c b/vma-reader.c
 new file mode 100644
-index 0000000000..2b1d1cdab3
+index 0000000000..4f4ee2b47b
 --- /dev/null
 +++ b/vma-reader.c
-@@ -0,0 +1,857 @@
+@@ -0,0 +1,860 @@
 +/*
 + * VMA: Virtual Machine Archive
 + *
@@ -252,6 +255,9 @@ index 0000000000..2b1d1cdab3
 +        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) {
@@ -1713,10 +1719,10 @@ index 0000000000..11d8321ffd
 +}
 diff --git a/vma.c b/vma.c
 new file mode 100644
-index 0000000000..2eea2fc281
+index 0000000000..89440733b1
 --- /dev/null
 +++ b/vma.c
-@@ -0,0 +1,839 @@
+@@ -0,0 +1,849 @@
 +/*
 + * VMA: Virtual Machine Archive
 + *
@@ -2028,8 +2034,6 @@ index 0000000000..2eea2fc281
 +    int vmstate_fd = -1;
 +    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)) {
@@ -2050,6 +2054,8 @@ index 0000000000..2eea2fc281
 +            int flags = BDRV_O_RDWR;
 +            bool write_zero = true;
 +
++            BlockBackend *blk = NULL;
++
 +            if (readmap) {
 +                RestoreMap *map;
 +                map = (RestoreMap *)g_hash_table_lookup(devmap, di->devname);
@@ -2162,8 +2168,6 @@ index 0000000000..2eea2fc281
 +
 +    vma_reader_destroy(vmar);
 +
-+    blk_unref(blk);
-+
 +    bdrv_close_all();
 +
 +    return ret;
@@ -2292,6 +2296,7 @@ index 0000000000..2eea2fc281
 +    int i, c;
 +    int verbose = 0;
 +    const char *archivename;
++    GList *backup_coroutines = NULL;
 +    GList *config_files = NULL;
 +
 +    for (;;) {
@@ -2380,7 +2385,9 @@ index 0000000000..2eea2fc281
 +        job->dev_id = dev_id;
 +
 +        Coroutine *co = qemu_coroutine_create(backup_run, job);
-+        qemu_coroutine_enter(co);
++        // 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);
 +    }
 +
 +    VmaStatus vmastat;
@@ -2388,6 +2395,13 @@ index 0000000000..2eea2fc281
 +    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);
@@ -2452,6 +2466,8 @@ index 0000000000..2eea2fc281
 +        g_error("creating vma archive failed");
 +    }
 +
++    g_list_free(backup_coroutines);
++    g_list_free(config_files);
 +    vma_writer_destroy(vmaw);
 +    return 0;
 +}

debian/patches/pve/0027-PVE-Backup-add-backup-dump-block-driver.patch

@@ -7,13 +7,15 @@ 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>
 ---
  block/backup-dump.c       | 168 ++++++++++++++++++++++++++++++++++++++
- block/backup.c            |  23 ++----
+ block/backup.c            |  30 ++-----
  block/meson.build         |   1 +
- include/block/block_int.h |  30 +++++++
+ include/block/block_int.h |  35 ++++++++
  job.c                     |   3 +-
- 5 files changed, 206 insertions(+), 19 deletions(-)
+ 5 files changed, 214 insertions(+), 23 deletions(-)
  create mode 100644 block/backup-dump.c
 
 diff --git a/block/backup-dump.c b/block/backup-dump.c
@@ -191,17 +193,18 @@ index 0000000000..93d7f46950
 +    return bs;
 +}
 diff --git a/block/backup.c b/block/backup.c
-index 9afa0bf3b4..3df3d532d5 100644
+index 47e218857d..4d8fad70c4 100644
 --- a/block/backup.c
 +++ b/block/backup.c
-@@ -32,24 +32,6 @@
+@@ -29,28 +29,6 @@
  
- #define BACKUP_CLUSTER_SIZE_DEFAULT (1 << 16)
+ #include "block/copy-before-write.h"
  
 -typedef struct BackupBlockJob {
 -    BlockJob common;
--    BlockDriverState *backup_top;
+-    BlockDriverState *cbw;
 -    BlockDriverState *source_bs;
+-    BlockDriverState *target_bs;
 -
 -    BdrvDirtyBitmap *sync_bitmap;
 -
@@ -210,29 +213,35 @@ index 9afa0bf3b4..3df3d532d5 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_progress_bytes_callback(int64_t bytes, void *opaque)
-@@ -423,6 +405,11 @@ BlockJob *backup_job_create(const char *job_id, BlockDriverState *bs,
-         goto error;
+ static void backup_cleanup_sync_bitmap(BackupBlockJob *job, int ret)
+@@ -455,6 +433,14 @@ BlockJob *backup_job_create(const char *job_id, BlockDriverState *bs,
      }
  
+     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 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
+ 
+     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 feffbc8623..2507af1168 100644
+index 72081a9974..7883df047c 100644
 --- a/block/meson.build
 +++ b/block/meson.build
 @@ -4,6 +4,7 @@ block_ss.add(files(
@@ -240,14 +249,22 @@ index feffbc8623..2507af1168 100644
    'amend.c',
    'backup.c',
 +  'backup-dump.c',
-   'backup-top.c',
+   'copy-before-write.c',
    'blkdebug.c',
    'blklogwrites.c',
 diff --git a/include/block/block_int.h b/include/block/block_int.h
-index 6f8eda629a..5455102da8 100644
+index f4c75e8ba9..169dc43d59 100644
 --- a/include/block/block_int.h
 +++ b/include/block/block_int.h
-@@ -63,6 +63,36 @@
+@@ -26,6 +26,7 @@
+ 
+ #include "block/accounting.h"
+ #include "block/block.h"
++#include "block/block-copy.h"
+ #include "block/aio-wait.h"
+ #include "qemu/queue.h"
+ #include "qemu/coroutine.h"
+@@ -64,6 +65,40 @@
  
  #define BLOCK_PROBE_BUF_SIZE        512
  
@@ -265,8 +282,9 @@ index 6f8eda629a..5455102da8 100644
 +typedef struct BlockCopyState BlockCopyState;
 +typedef struct BackupBlockJob {
 +    BlockJob common;
-+    BlockDriverState *backup_top;
++    BlockDriverState *cbw;
 +    BlockDriverState *source_bs;
++    BlockDriverState *target_bs;
 +
 +    BdrvDirtyBitmap *sync_bitmap;
 +
@@ -275,20 +293,23 @@ index 6f8eda629a..5455102da8 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 8fecf38960..f9884e7d9d 100644
+index dbfa67bb0a..af25dd5b98 100644
 --- a/job.c
 +++ b/job.c
-@@ -269,7 +269,8 @@ static bool job_started(Job *job)
+@@ -276,7 +276,8 @@ static bool job_started(Job *job)
      return job->co;
  }
  

debian/patches/pve/0028-PVE-Backup-proxmox-backup-patches-for-qemu.patch

@@ -6,11 +6,14 @@ Subject: [PATCH] PVE-Backup: proxmox backup patches for qemu
 Signed-off-by: Dietmar Maurer <dietmar@proxmox.com>
 [PVE-Backup: avoid coroutines to fix AIO freeze, cleanups]
 Signed-off-by: Stefan Reiter <s.reiter@proxmox.com>
+Signed-off-by: Thomas Lamprecht <t.lamprecht@proxmox.com>
+[add new force parameter to job_cancel_sync calls]
+Signed-off-by: Fabian Ebner <f.ebner@proxmox.com>
 ---
  block/meson.build              |   5 +
  block/monitor/block-hmp-cmds.c |  33 ++
  blockdev.c                     |   1 +
- hmp-commands-info.hx           |  13 +
+ hmp-commands-info.hx           |  14 +
  hmp-commands.hx                |  29 +
  include/block/block_int.h      |   2 +-
  include/monitor/hmp.h          |   3 +
@@ -18,21 +21,21 @@ Signed-off-by: Stefan Reiter <s.reiter@proxmox.com>
  monitor/hmp-cmds.c             |  44 ++
  proxmox-backup-client.c        | 176 ++++++
  proxmox-backup-client.h        |  59 ++
- pve-backup.c                   | 957 +++++++++++++++++++++++++++++++++
+ pve-backup.c                   | 959 +++++++++++++++++++++++++++++++++
  qapi/block-core.json           | 109 ++++
  qapi/common.json               |  13 +
  qapi/machine.json              |  15 +-
- 15 files changed, 1446 insertions(+), 14 deletions(-)
+ 15 files changed, 1449 insertions(+), 14 deletions(-)
  create mode 100644 proxmox-backup-client.c
  create mode 100644 proxmox-backup-client.h
  create mode 100644 pve-backup.c
 
 diff --git a/block/meson.build b/block/meson.build
-index 2507af1168..dfae565db3 100644
+index 7883df047c..9d3dd5b7c3 100644
 --- a/block/meson.build
 +++ b/block/meson.build
-@@ -44,6 +44,11 @@ block_ss.add(files(
- ), zstd, zlib)
+@@ -46,6 +46,11 @@ block_ss.add(files(
+ ), zstd, zlib, gnutls)
  
  block_ss.add(files('../vma-writer.c'), libuuid)
 +block_ss.add(files(
@@ -44,10 +47,10 @@ index 2507af1168..dfae565db3 100644
  softmmu_ss.add(when: 'CONFIG_TCG', if_true: files('blkreplay.c'))
  
 diff --git a/block/monitor/block-hmp-cmds.c b/block/monitor/block-hmp-cmds.c
-index d15a2be827..9ba7c774a2 100644
+index 2ac4aedfff..f6668ab01d 100644
 --- a/block/monitor/block-hmp-cmds.c
 +++ b/block/monitor/block-hmp-cmds.c
-@@ -1012,3 +1012,36 @@ void hmp_info_snapshots(Monitor *mon, const QDict *qdict)
+@@ -1015,3 +1015,36 @@ void hmp_info_snapshots(Monitor *mon, const QDict *qdict)
      g_free(sn_tab);
      g_free(global_snapshots);
  }
@@ -85,7 +88,7 @@ index d15a2be827..9ba7c774a2 100644
 +    hmp_handle_error(mon, error);
 +}
 diff --git a/blockdev.c b/blockdev.c
-index a40c6fd0f6..e2f826ca62 100644
+index b35072644e..c0bc3db33e 100644
 --- a/blockdev.c
 +++ b/blockdev.c
 @@ -36,6 +36,7 @@
@@ -97,13 +100,14 @@ index a40c6fd0f6..e2f826ca62 100644
  #include "monitor/monitor.h"
  #include "qemu/error-report.h"
 diff --git a/hmp-commands-info.hx b/hmp-commands-info.hx
-index b3b797ca28..295e14e64f 100644
+index 245f8acc55..3e7f2421eb 100644
 --- a/hmp-commands-info.hx
 +++ b/hmp-commands-info.hx
-@@ -513,6 +513,19 @@ SRST
-     Show CPU statistics.
+@@ -482,6 +482,20 @@ SRST
+     Show the current VM UUID.
  ERST
  
++
 +    {
 +        .name       = "backup",
 +        .args_type  = "",
@@ -121,10 +125,10 @@ index b3b797ca28..295e14e64f 100644
      {
          .name       = "usernet",
 diff --git a/hmp-commands.hx b/hmp-commands.hx
-index d294c234a5..0c6b944850 100644
+index 1ad13b668b..d4bb00216e 100644
 --- a/hmp-commands.hx
 +++ b/hmp-commands.hx
-@@ -98,6 +98,35 @@ ERST
+@@ -99,6 +99,35 @@ ERST
  SRST
  ``block_stream``
    Copy data from a backing file into a block device.
@@ -161,10 +165,10 @@ index d294c234a5..0c6b944850 100644
  
      {
 diff --git a/include/block/block_int.h b/include/block/block_int.h
-index 5455102da8..1bd4b64522 100644
+index 169dc43d59..92f90c43eb 100644
 --- a/include/block/block_int.h
 +++ b/include/block/block_int.h
-@@ -65,7 +65,7 @@
+@@ -67,7 +67,7 @@
  
  typedef int BackupDumpFunc(void *opaque, uint64_t offset, uint64_t bytes, const void *buf);
  
@@ -174,18 +178,18 @@ index 5455102da8..1bd4b64522 100644
      uint64_t byte_size,
      BackupDumpFunc *dump_cb,
 diff --git a/include/monitor/hmp.h b/include/monitor/hmp.h
-index 4e06f89e8e..10f52bd92a 100644
+index 3a39ba41b5..d269b4c99c 100644
 --- a/include/monitor/hmp.h
 +++ b/include/monitor/hmp.h
-@@ -30,6 +30,7 @@ void hmp_info_migrate(Monitor *mon, const QDict *qdict);
+@@ -30,6 +30,7 @@ void hmp_info_savevm(Monitor *mon, const QDict *qdict);
+ void hmp_info_migrate(Monitor *mon, const QDict *qdict);
  void hmp_info_migrate_capabilities(Monitor *mon, const QDict *qdict);
  void hmp_info_migrate_parameters(Monitor *mon, const QDict *qdict);
- void hmp_info_migrate_cache_size(Monitor *mon, const QDict *qdict);
 +void hmp_info_backup(Monitor *mon, const QDict *qdict);
  void hmp_info_cpus(Monitor *mon, const QDict *qdict);
  void hmp_info_vnc(Monitor *mon, const QDict *qdict);
  void hmp_info_spice(Monitor *mon, const QDict *qdict);
-@@ -76,6 +77,8 @@ void hmp_x_colo_lost_heartbeat(Monitor *mon, const QDict *qdict);
+@@ -73,6 +74,8 @@ void hmp_x_colo_lost_heartbeat(Monitor *mon, const QDict *qdict);
  void hmp_set_password(Monitor *mon, const QDict *qdict);
  void hmp_expire_password(Monitor *mon, const QDict *qdict);
  void hmp_change(Monitor *mon, const QDict *qdict);
@@ -195,19 +199,19 @@ index 4e06f89e8e..10f52bd92a 100644
  void hmp_device_add(Monitor *mon, const QDict *qdict);
  void hmp_device_del(Monitor *mon, const QDict *qdict);
 diff --git a/meson.build b/meson.build
-index d5b660516b..3094f98c47 100644
+index 54c23b9567..37dab249cc 100644
 --- a/meson.build
 +++ b/meson.build
-@@ -726,6 +726,7 @@ keyutils = dependency('libkeyutils', required: false,
+@@ -1203,6 +1203,7 @@ keyutils = dependency('libkeyutils', required: false,
  has_gettid = cc.has_function('gettid')
  
  libuuid = cc.find_library('uuid', required: true)
 +libproxmox_backup_qemu = cc.find_library('proxmox_backup_qemu', required: true)
  
- # Malloc tests
- 
+ # libselinux
+ selinux = dependency('libselinux',
 diff --git a/monitor/hmp-cmds.c b/monitor/hmp-cmds.c
-index 77ab152aab..182e79c943 100644
+index 5000ce39d1..b2687eae3a 100644
 --- a/monitor/hmp-cmds.c
 +++ b/monitor/hmp-cmds.c
 @@ -195,6 +195,50 @@ void hmp_info_mice(Monitor *mon, const QDict *qdict)
@@ -510,10 +514,10 @@ index 0000000000..1dda8b7d8f
 +#endif /* PROXMOX_BACKUP_CLIENT_H */
 diff --git a/pve-backup.c b/pve-backup.c
 new file mode 100644
-index 0000000000..d40f3f2fd6
+index 0000000000..88f5ee133f
 --- /dev/null
 +++ b/pve-backup.c
-@@ -0,0 +1,957 @@
+@@ -0,0 +1,959 @@
 +#include "proxmox-backup-client.h"
 +#include "vma.h"
 +
@@ -870,7 +874,7 @@ index 0000000000..d40f3f2fd6
 +        if (next_job) {
 +            AioContext *aio_context = next_job->job.aio_context;
 +            aio_context_acquire(aio_context);
-+            job_cancel_sync(&next_job->job);
++            job_cancel_sync(&next_job->job, true);
 +            aio_context_release(aio_context);
 +        } else {
 +            break;
@@ -957,7 +961,7 @@ index 0000000000..d40f3f2fd6
 +            if (job_should_pause(&job->job)) {
 +                bool error_or_canceled = pvebackup_error_or_canceled();
 +                if (error_or_canceled) {
-+                    job_cancel_sync(&job->job);
++                    job_cancel_sync(&job->job, true);
 +                } else {
 +                    job_resume(&job->job);
 +                }
@@ -978,6 +982,8 @@ index 0000000000..d40f3f2fd6
 +
 +    Error *local_err = NULL;
 +
++    BackupPerf perf = { .max_workers = 16 };
++
 +    /* create and start all jobs (paused state) */
 +    GList *l =  backup_state.di_list;
 +    while (l) {
@@ -991,8 +997,8 @@ index 0000000000..d40f3f2fd6
 +
 +        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);
++            BITMAP_SYNC_MODE_NEVER, false, NULL, &perf, BLOCKDEV_ON_ERROR_REPORT, BLOCKDEV_ON_ERROR_REPORT,
++            JOB_DEFAULT, pvebackup_complete_cb, di, NULL, &local_err);
 +
 +        aio_context_release(aio_context);
 +
@@ -1472,10 +1478,10 @@ index 0000000000..d40f3f2fd6
 +    return info;
 +}
 diff --git a/qapi/block-core.json b/qapi/block-core.json
-index d285622589..9054db608c 100644
+index 3f81d6a5c0..551ee28275 100644
 --- a/qapi/block-core.json
 +++ b/qapi/block-core.json
-@@ -745,6 +745,115 @@
+@@ -744,6 +744,115 @@
  { 'command': 'query-block', 'returns': ['BlockInfo'] }
  
  
@@ -1592,13 +1598,13 @@ index d285622589..9054db608c 100644
  # @BlockDeviceTimedStats:
  #
 diff --git a/qapi/common.json b/qapi/common.json
-index 716712d4b3..556dab79e1 100644
+index 412cc4f5ae..3e7a77ea66 100644
 --- a/qapi/common.json
 +++ b/qapi/common.json
-@@ -145,3 +145,16 @@
+@@ -208,3 +208,16 @@
  ##
- { 'enum': 'PCIELinkWidth',
-   'data': [ '1', '2', '4', '8', '12', '16', '32' ] }
+ { 'struct': 'HumanReadableText',
+   'data': { 'human-readable-text': 'str' } }
 +
 +##
 +# @UuidInfo:
@@ -1613,7 +1619,7 @@ index 716712d4b3..556dab79e1 100644
 +##
 +{ 'struct': 'UuidInfo', 'data': {'UUID': 'str'} }
 diff --git a/qapi/machine.json b/qapi/machine.json
-index 32fc674042..145f1a4fa2 100644
+index a05c46e253..e2cec7922f 100644
 --- a/qapi/machine.json
 +++ b/qapi/machine.json
 @@ -4,6 +4,8 @@
@@ -1625,7 +1631,7 @@ index 32fc674042..145f1a4fa2 100644
  ##
  # = Machines
  ##
-@@ -406,19 +408,6 @@
+@@ -229,19 +231,6 @@
  ##
  { 'command': 'query-target', 'returns': 'TargetInfo' }
  
@@ -1636,7 +1642,7 @@ index 32fc674042..145f1a4fa2 100644
 -#
 -# @UUID: the UUID of the guest
 -#
--# Since: 0.14.0
+-# Since: 0.14
 -#
 -# Notes: If no UUID was specified for the guest, a null UUID is returned.
 -##

debian/patches/pve/0029-PVE-Backup-pbs-restore-new-command-to-restore-from-p.patch

@@ -12,14 +12,14 @@ Signed-off-by: Thomas Lamprecht <t.lamprecht@proxmox.com>
  create mode 100644 pbs-restore.c
 
 diff --git a/meson.build b/meson.build
-index 3094f98c47..6f1fafee14 100644
+index 37dab249cc..1a4dfab4e2 100644
 --- a/meson.build
 +++ b/meson.build
-@@ -1913,6 +1913,10 @@ if have_tools
-   vma = executable('vma', files('vma.c', 'vma-reader.c'),
+@@ -3076,6 +3076,10 @@ if have_tools
+   vma = executable('vma', files('vma.c', 'vma-reader.c') + genh,
                     dependencies: [authz, block, crypto, io, qom], install: true)
  
-+  pbs_restore = executable('pbs-restore', files('pbs-restore.c'),
++  pbs_restore = executable('pbs-restore', files('pbs-restore.c') + genh,
 +                  dependencies: [authz, block, crypto, io, qom,
 +                    libproxmox_backup_qemu], install: true)
 +

debian/patches/pve/0030-PVE-Backup-Add-dirty-bitmap-tracking-for-incremental.patch

@@ -29,10 +29,10 @@ Signed-off-by: Thomas Lamprecht <t.lamprecht@proxmox.com>
  6 files changed, 142 insertions(+), 23 deletions(-)
 
 diff --git a/block/monitor/block-hmp-cmds.c b/block/monitor/block-hmp-cmds.c
-index 9ba7c774a2..056d14deee 100644
+index f6668ab01d..3c06734e6d 100644
 --- a/block/monitor/block-hmp-cmds.c
 +++ b/block/monitor/block-hmp-cmds.c
-@@ -1039,6 +1039,7 @@ void hmp_backup(Monitor *mon, const QDict *qdict)
+@@ -1042,6 +1042,7 @@ void hmp_backup(Monitor *mon, const QDict *qdict)
          false, NULL, // PBS fingerprint
          false, NULL, // PBS backup-id
          false, 0, // PBS backup-time
@@ -41,7 +41,7 @@ index 9ba7c774a2..056d14deee 100644
          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 182e79c943..604026bb37 100644
+index b2687eae3a..cfd7a60f32 100644
 --- a/monitor/hmp-cmds.c
 +++ b/monitor/hmp-cmds.c
 @@ -221,19 +221,42 @@ void hmp_info_backup(Monitor *mon, const QDict *qdict)
@@ -132,7 +132,7 @@ index 1dda8b7d8f..8cbf645b2c 100644
  
  
 diff --git a/pve-backup.c b/pve-backup.c
-index d40f3f2fd6..1cd9d31d7c 100644
+index 88f5ee133f..1c49cd178d 100644
 --- a/pve-backup.c
 +++ b/pve-backup.c
 @@ -28,6 +28,8 @@
@@ -232,7 +232,7 @@ index d40f3f2fd6..1cd9d31d7c 100644
      g_free(di);
  
      qemu_mutex_unlock(&backup_state.backup_mutex);
-@@ -470,12 +495,18 @@ static bool create_backup_jobs(void) {
+@@ -472,12 +497,18 @@ static bool create_backup_jobs(void) {
  
          assert(di->target != NULL);
  
@@ -247,13 +247,13 @@ index d40f3f2fd6..1cd9d31d7c 100644
  
          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,
+-            BITMAP_SYNC_MODE_NEVER, false, NULL, &perf, 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);
++            bitmap_mode, false, NULL, &perf, BLOCKDEV_ON_ERROR_REPORT, BLOCKDEV_ON_ERROR_REPORT,
+             JOB_DEFAULT, pvebackup_complete_cb, di, NULL, &local_err);
  
          aio_context_release(aio_context);
-@@ -526,6 +557,8 @@ typedef struct QmpBackupTask {
+@@ -528,6 +559,8 @@ typedef struct QmpBackupTask {
      const char *fingerprint;
      bool has_fingerprint;
      int64_t backup_time;
@@ -262,7 +262,7 @@ index d40f3f2fd6..1cd9d31d7c 100644
      bool has_format;
      BackupFormat format;
      bool has_config_file;
-@@ -617,6 +650,7 @@ static void coroutine_fn pvebackup_co_prepare(void *opaque)
+@@ -619,6 +652,7 @@ static void coroutine_fn pvebackup_co_prepare(void *opaque)
      }
  
      size_t total = 0;
@@ -270,7 +270,7 @@ index d40f3f2fd6..1cd9d31d7c 100644
  
      l = di_list;
      while (l) {
-@@ -654,6 +688,8 @@ static void coroutine_fn pvebackup_co_prepare(void *opaque)
+@@ -656,6 +690,8 @@ 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";
  
@@ -279,7 +279,7 @@ index d40f3f2fd6..1cd9d31d7c 100644
          char *pbs_err = NULL;
          pbs = proxmox_backup_new(
              task->backup_file,
-@@ -673,7 +709,8 @@ static void coroutine_fn pvebackup_co_prepare(void *opaque)
+@@ -675,7 +711,8 @@ static void coroutine_fn pvebackup_co_prepare(void *opaque)
              goto err;
          }
  
@@ -289,7 +289,7 @@ index d40f3f2fd6..1cd9d31d7c 100644
              goto err;
  
          /* register all devices */
-@@ -684,9 +721,40 @@ static void coroutine_fn pvebackup_co_prepare(void *opaque)
+@@ -686,9 +723,40 @@ static void coroutine_fn pvebackup_co_prepare(void *opaque)
  
              const char *devname = bdrv_get_device_name(di->bs);
  
@@ -332,7 +332,7 @@ index d40f3f2fd6..1cd9d31d7c 100644
  
              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 +763,8 @@ static void coroutine_fn pvebackup_co_prepare(void *opaque)
+@@ -697,6 +765,8 @@ static void coroutine_fn pvebackup_co_prepare(void *opaque)
              di->dev_id = dev_id;
          }
      } else if (format == BACKUP_FORMAT_VMA) {
@@ -341,7 +341,7 @@ index d40f3f2fd6..1cd9d31d7c 100644
          vmaw = vma_writer_create(task->backup_file, uuid, &local_err);
          if (!vmaw) {
              if (local_err) {
-@@ -722,6 +792,8 @@ static void coroutine_fn pvebackup_co_prepare(void *opaque)
+@@ -724,6 +794,8 @@ static void coroutine_fn pvebackup_co_prepare(void *opaque)
              }
          }
      } else if (format == BACKUP_FORMAT_DIR) {
@@ -350,7 +350,7 @@ index d40f3f2fd6..1cd9d31d7c 100644
          if (mkdir(task->backup_file, 0640) != 0) {
              error_setg_errno(task->errp, errno, "can't create directory '%s'\n",
                               task->backup_file);
-@@ -794,8 +866,10 @@ static void coroutine_fn pvebackup_co_prepare(void *opaque)
+@@ -796,8 +868,10 @@ static void coroutine_fn pvebackup_co_prepare(void *opaque)
      char *uuid_str = g_strdup(backup_state.stat.uuid_str);
  
      backup_state.stat.total = total;
@@ -361,7 +361,7 @@ index d40f3f2fd6..1cd9d31d7c 100644
  
      qemu_mutex_unlock(&backup_state.stat.lock);
  
-@@ -819,6 +893,10 @@ err:
+@@ -821,6 +895,10 @@ err:
          PVEBackupDevInfo *di = (PVEBackupDevInfo *)l->data;
          l = g_list_next(l);
  
@@ -372,7 +372,7 @@ index d40f3f2fd6..1cd9d31d7c 100644
          if (di->target) {
              bdrv_unref(di->target);
          }
-@@ -860,6 +938,7 @@ UuidInfo *qmp_backup(
+@@ -862,6 +940,7 @@ 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,
@@ -380,7 +380,7 @@ index d40f3f2fd6..1cd9d31d7c 100644
      bool has_format, BackupFormat format,
      bool has_config_file, const char *config_file,
      bool has_firewall_file, const char *firewall_file,
-@@ -878,6 +957,8 @@ UuidInfo *qmp_backup(
+@@ -880,6 +959,8 @@ UuidInfo *qmp_backup(
          .backup_id = backup_id,
          .has_backup_time = has_backup_time,
          .backup_time = backup_time,
@@ -389,7 +389,7 @@ index d40f3f2fd6..1cd9d31d7c 100644
          .has_format = has_format,
          .format = format,
          .has_config_file = has_config_file,
-@@ -946,10 +1027,14 @@ BackupStatus *qmp_query_backup(Error **errp)
+@@ -948,10 +1029,14 @@ BackupStatus *qmp_query_backup(Error **errp)
  
      info->has_total = true;
      info->total = backup_state.stat.total;
@@ -405,10 +405,10 @@ index d40f3f2fd6..1cd9d31d7c 100644
      qemu_mutex_unlock(&backup_state.stat.lock);
  
 diff --git a/qapi/block-core.json b/qapi/block-core.json
-index 9054db608c..d4e1c98c50 100644
+index 551ee28275..b9d6f52f0c 100644
 --- a/qapi/block-core.json
 +++ b/qapi/block-core.json
-@@ -758,8 +758,13 @@
+@@ -757,8 +757,13 @@
  #
  # @total: total amount of bytes involved in the backup process
  #
@@ -422,7 +422,7 @@ index 9054db608c..d4e1c98c50 100644
  # @zero-bytes: amount of 'zero' bytes detected.
  #
  # @start-time: time (epoch) when backup job started.
-@@ -772,8 +777,8 @@
+@@ -771,8 +776,8 @@
  #
  ##
  { 'struct': 'BackupStatus',
@@ -433,7 +433,7 @@ index 9054db608c..d4e1c98c50 100644
             '*start-time': 'int', '*end-time': 'int',
             '*backup-file': 'str', '*uuid': 'str' } }
  
-@@ -816,6 +821,8 @@
+@@ -815,6 +820,8 @@
  #
  # @backup-time: backup timestamp (Unix epoch, required for format 'pbs')
  #
@@ -442,7 +442,7 @@ index 9054db608c..d4e1c98c50 100644
  # Returns: the uuid of the backup job
  #
  ##
-@@ -826,6 +833,7 @@
+@@ -825,6 +832,7 @@
                                      '*fingerprint': 'str',
                                      '*backup-id': 'str',
                                      '*backup-time': 'int',

debian/patches/pve/0031-PVE-various-PBS-fixes.patch

@@ -11,6 +11,7 @@ Signed-off-by: Stefan Reiter <s.reiter@proxmox.com>
 
 PVE: add zero block handling to PBS dump callback
 Signed-off-by: Stefan Reiter <s.reiter@proxmox.com>
+Signed-off-by: Thomas Lamprecht <t.lamprecht@proxmox.com>
 ---
  block/monitor/block-hmp-cmds.c |  4 ++-
  pve-backup.c                   | 57 +++++++++++++++++++++++++++-------
@@ -18,10 +19,10 @@ Signed-off-by: Stefan Reiter <s.reiter@proxmox.com>
  3 files changed, 54 insertions(+), 13 deletions(-)
 
 diff --git a/block/monitor/block-hmp-cmds.c b/block/monitor/block-hmp-cmds.c
-index 056d14deee..46c63b1cf9 100644
+index 3c06734e6d..4481b60a5c 100644
 --- a/block/monitor/block-hmp-cmds.c
 +++ b/block/monitor/block-hmp-cmds.c
-@@ -1039,7 +1039,9 @@ void hmp_backup(Monitor *mon, const QDict *qdict)
+@@ -1042,7 +1042,9 @@ void hmp_backup(Monitor *mon, const QDict *qdict)
          false, NULL, // PBS fingerprint
          false, NULL, // PBS backup-id
          false, 0, // PBS backup-time
@@ -33,7 +34,7 @@ index 056d14deee..46c63b1cf9 100644
          false, NULL, false, NULL, !!devlist,
          devlist, qdict_haskey(qdict, "speed"), speed, &error);
 diff --git a/pve-backup.c b/pve-backup.c
-index 1cd9d31d7c..b8182aaf89 100644
+index 1c49cd178d..c15abefdda 100644
 --- a/pve-backup.c
 +++ b/pve-backup.c
 @@ -8,6 +8,7 @@
@@ -123,7 +124,7 @@ index 1cd9d31d7c..b8182aaf89 100644
          if (ret < 0) {
              Error *local_err = NULL;
              vma_writer_error_propagate(backup_state.vmaw, &local_err);
-@@ -567,6 +583,10 @@ typedef struct QmpBackupTask {
+@@ -569,6 +585,10 @@ typedef struct QmpBackupTask {
      const char *firewall_file;
      bool has_devlist;
      const char *devlist;
@@ -134,7 +135,7 @@ index 1cd9d31d7c..b8182aaf89 100644
      bool has_speed;
      int64_t speed;
      Error **errp;
-@@ -690,6 +710,7 @@ static void coroutine_fn pvebackup_co_prepare(void *opaque)
+@@ -692,6 +712,7 @@ static void coroutine_fn pvebackup_co_prepare(void *opaque)
  
          bool use_dirty_bitmap = task->has_use_dirty_bitmap && task->use_dirty_bitmap;
  
@@ -142,7 +143,7 @@ index 1cd9d31d7c..b8182aaf89 100644
          char *pbs_err = NULL;
          pbs = proxmox_backup_new(
              task->backup_file,
-@@ -699,8 +720,10 @@ static void coroutine_fn pvebackup_co_prepare(void *opaque)
+@@ -701,8 +722,10 @@ 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,
@@ -154,7 +155,7 @@ index 1cd9d31d7c..b8182aaf89 100644
  
          if (!pbs) {
              error_set(task->errp, ERROR_CLASS_GENERIC_ERROR,
-@@ -719,6 +742,8 @@ static void coroutine_fn pvebackup_co_prepare(void *opaque)
+@@ -721,6 +744,8 @@ static void coroutine_fn pvebackup_co_prepare(void *opaque)
              PVEBackupDevInfo *di = (PVEBackupDevInfo *)l->data;
              l = g_list_next(l);
  
@@ -163,7 +164,7 @@ index 1cd9d31d7c..b8182aaf89 100644
              const char *devname = bdrv_get_device_name(di->bs);
  
              BdrvDirtyBitmap *bitmap = bdrv_find_dirty_bitmap(di->bs, PBS_BITMAP_NAME);
-@@ -939,6 +964,8 @@ UuidInfo *qmp_backup(
+@@ -941,6 +966,8 @@ 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,
@@ -172,7 +173,7 @@ index 1cd9d31d7c..b8182aaf89 100644
      bool has_format, BackupFormat format,
      bool has_config_file, const char *config_file,
      bool has_firewall_file, const char *firewall_file,
-@@ -949,6 +976,8 @@ UuidInfo *qmp_backup(
+@@ -951,6 +978,8 @@ UuidInfo *qmp_backup(
          .backup_file = backup_file,
          .has_password = has_password,
          .password = password,
@@ -181,7 +182,7 @@ index 1cd9d31d7c..b8182aaf89 100644
          .has_key_password = has_key_password,
          .key_password = key_password,
          .has_fingerprint = has_fingerprint,
-@@ -959,6 +988,10 @@ UuidInfo *qmp_backup(
+@@ -961,6 +990,10 @@ UuidInfo *qmp_backup(
          .backup_time = backup_time,
          .has_use_dirty_bitmap = has_use_dirty_bitmap,
          .use_dirty_bitmap = use_dirty_bitmap,
@@ -193,10 +194,10 @@ index 1cd9d31d7c..b8182aaf89 100644
          .format = format,
          .has_config_file = has_config_file,
 diff --git a/qapi/block-core.json b/qapi/block-core.json
-index d4e1c98c50..0fda1e3fd3 100644
+index b9d6f52f0c..5d8e2eb303 100644
 --- a/qapi/block-core.json
 +++ b/qapi/block-core.json
-@@ -823,6 +823,10 @@
+@@ -822,6 +822,10 @@
  #
  # @use-dirty-bitmap: use dirty bitmap to detect incremental changes since last job (optional for format 'pbs')
  #
@@ -207,7 +208,7 @@ index d4e1c98c50..0fda1e3fd3 100644
  # Returns: the uuid of the backup job
  #
  ##
-@@ -834,6 +838,8 @@
+@@ -833,6 +837,8 @@
                                      '*backup-id': 'str',
                                      '*backup-time': 'int',
                                      '*use-dirty-bitmap': 'bool',

debian/patches/pve/0032-PVE-Add-PBS-block-driver-to-map-backup-archives-into.patch

@@ -6,20 +6,23 @@ 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>
+[adapt to changed function signatures]
+Signed-off-by: Fabian Ebner <f.ebner@proxmox.com>
 ---
  block/meson.build    |   3 +
- block/pbs.c          | 271 +++++++++++++++++++++++++++++++++++++++++++
+ block/pbs.c          | 276 +++++++++++++++++++++++++++++++++++++++++++
  configure            |   9 ++
  meson.build          |   1 +
- qapi/block-core.json |  14 ++-
- 5 files changed, 297 insertions(+), 1 deletion(-)
+ qapi/block-core.json |  13 ++
+ 5 files changed, 302 insertions(+)
  create mode 100644 block/pbs.c
 
 diff --git a/block/meson.build b/block/meson.build
-index dfae565db3..a070060e53 100644
+index 9d3dd5b7c3..8c758c0218 100644
 --- a/block/meson.build
 +++ b/block/meson.build
-@@ -49,6 +49,9 @@ block_ss.add(files(
+@@ -51,6 +51,9 @@ block_ss.add(files(
    '../pve-backup.c',
  ), libproxmox_backup_qemu)
  
@@ -31,10 +34,10 @@ index dfae565db3..a070060e53 100644
  
 diff --git a/block/pbs.c b/block/pbs.c
 new file mode 100644
-index 0000000000..1481a2bfd1
+index 0000000000..0b05ea9080
 --- /dev/null
 +++ b/block/pbs.c
-@@ -0,0 +1,271 @@
+@@ -0,0 +1,276 @@
 +/*
 + * Proxmox Backup Server read-only block driver
 + */
@@ -231,20 +234,25 @@ index 0000000000..1481a2bfd1
 +}
 +
 +static coroutine_fn int pbs_co_preadv(BlockDriverState *bs,
-+                                      uint64_t offset, uint64_t bytes,
-+                                      QEMUIOVector *qiov, int flags)
++                                      int64_t offset, int64_t bytes,
++                                      QEMUIOVector *qiov, BdrvRequestFlags flags)
 +{
 +    BDRVPBSState *s = bs->opaque;
 +    int ret;
 +    char *pbs_error = NULL;
 +    uint8_t *buf = malloc(bytes);
 +
++    if (offset < 0 || bytes < 0) {
++        fprintf(stderr, "unexpected negative 'offset' or 'bytes' value!\n");
++        return -EINVAL;
++    }
++
 +    ReadCallbackData rcb = {
 +        .co = qemu_coroutine_self(),
 +        .ctx = bdrv_get_aio_context(bs),
 +    };
 +
-+    proxmox_restore_read_image_at_async(s->conn, s->aid, buf, offset, bytes,
++    proxmox_restore_read_image_at_async(s->conn, s->aid, buf, (uint64_t)offset, (uint64_t)bytes,
 +                                        read_callback, (void *) &rcb, &ret, &pbs_error);
 +
 +    qemu_coroutine_yield();
@@ -262,8 +270,8 @@ index 0000000000..1481a2bfd1
 +}
 +
 +static coroutine_fn int pbs_co_pwritev(BlockDriverState *bs,
-+                                       uint64_t offset, uint64_t bytes,
-+                                       QEMUIOVector *qiov, int flags)
++                                       int64_t offset, int64_t bytes,
++                                       QEMUIOVector *qiov, BdrvRequestFlags flags)
 +{
 +    fprintf(stderr, "pbs-bdrv: cannot write to backup file, make sure "
 +           "any attached disk devices are set to read-only!\n");
@@ -307,20 +315,20 @@ index 0000000000..1481a2bfd1
 +
 +block_init(bdrv_pbs_init);
 diff --git a/configure b/configure
-index 18c26e0389..33d9933871 100755
+index 48c21775f3..eda4e9225a 100755
 --- a/configure
 +++ b/configure
-@@ -436,6 +436,7 @@ vvfat="yes"
- qed="yes"
- parallels="yes"
- sheepdog="no"
+@@ -356,6 +356,7 @@ vdi=${default_feature:-yes}
+ vvfat=${default_feature:-yes}
+ qed=${default_feature:-yes}
+ parallels=${default_feature:-yes}
 +pbs_bdrv="yes"
- libxml2=""
  debug_mutex="no"
- libpmem=""
-@@ -1461,6 +1462,10 @@ for opt do
+ plugins="$default_feature"
+ rng_none="no"
+@@ -1126,6 +1127,10 @@ for opt do
    ;;
-   --enable-sheepdog) sheepdog="yes"
+   --enable-parallels) parallels="yes"
    ;;
 +  --disable-pbs-bdrv) pbs_bdrv="no"
 +  ;;
@@ -329,50 +337,49 @@ index 18c26e0389..33d9933871 100755
    --disable-vhost-user) vhost_user="no"
    ;;
    --enable-vhost-user) vhost_user="yes"
-@@ -1843,6 +1848,7 @@ disabled with --disable-FEATURE, default is enabled if available:
+@@ -1465,6 +1470,7 @@ cat << EOF
+   vvfat           vvfat image format support
    qed             qed image format support
    parallels       parallels image format support
-   sheepdog        sheepdog block driver support (deprecated)
 +  pbs-bdrv        Proxmox backup server read-only block driver support
    crypto-afalg    Linux AF_ALG crypto backend driver
-   capstone        capstone disassembler support
    debug-mutex     mutex debugging support
-@@ -6682,6 +6688,9 @@ if test "$sheepdog" = "yes" ; then
-   add_to deprecated_features "sheepdog"
-   echo "CONFIG_SHEEPDOG=y" >> $config_host_mak
+   rng-none        dummy RNG, avoid using /dev/(u)random and getrandom()
+@@ -3534,6 +3540,9 @@ if test "$xen" = "enabled" ; then
+   echo "XEN_CFLAGS=$xen_cflags" >> $config_host_mak
+   echo "XEN_LIBS=$xen_libs" >> $config_host_mak
  fi
 +if test "$pbs_bdrv" = "yes" ; then
 +  echo "CONFIG_PBS_BDRV=y" >> $config_host_mak
 +fi
- if test "$pty_h" = "yes" ; then
-   echo "HAVE_PTY_H=y" >> $config_host_mak
+ if test "$vhost_scsi" = "yes" ; then
+   echo "CONFIG_VHOST_SCSI=y" >> $config_host_mak
  fi
 diff --git a/meson.build b/meson.build
-index 6f1fafee14..4d156d35ce 100644
+index 1a4dfab4e2..85b3c63199 100644
 --- a/meson.build
 +++ b/meson.build
-@@ -2199,6 +2199,7 @@ summary_info += {'vvfat support':     config_host.has_key('CONFIG_VVFAT')}
- summary_info += {'qed support':       config_host.has_key('CONFIG_QED')}
- summary_info += {'parallels support': config_host.has_key('CONFIG_PARALLELS')}
- summary_info += {'sheepdog support':  config_host.has_key('CONFIG_SHEEPDOG')}
+@@ -3448,6 +3448,7 @@ summary_info += {'lzfse support':     liblzfse}
+ summary_info += {'zstd support':      zstd}
+ summary_info += {'NUMA host support': config_host.has_key('CONFIG_NUMA')}
+ summary_info += {'libxml2':           libxml2}
 +summary_info += {'PBS bdrv support':  config_host.has_key('CONFIG_PBS_BDRV')}
- summary_info += {'capstone':          capstone_opt == 'disabled' ? false : capstone_opt}
- summary_info += {'libpmem support':   config_host.has_key('CONFIG_LIBPMEM')}
- summary_info += {'libdaxctl support': config_host.has_key('CONFIG_LIBDAXCTL')}
+ summary_info += {'capstone':          capstone_opt == 'internal' ? capstone_opt : capstone}
+ summary_info += {'libpmem support':   libpmem}
+ summary_info += {'libdaxctl support': libdaxctl}
 diff --git a/qapi/block-core.json b/qapi/block-core.json
-index 0fda1e3fd3..553112d998 100644
+index 5d8e2eb303..777863e33b 100644
 --- a/qapi/block-core.json
 +++ b/qapi/block-core.json
-@@ -2975,7 +2975,7 @@
+@@ -3053,6 +3053,7 @@
              'luks', 'nbd', 'nfs', 'null-aio', 'null-co', 'nvme', 'parallels',
-             'qcow', 'qcow2', 'qed', 'quorum', 'raw', 'rbd',
-             { 'name': 'replication', 'if': 'defined(CONFIG_REPLICATION)' },
--            'sheepdog',
-+            'sheepdog', 'pbs',
+             'preallocate', 'qcow', 'qcow2', 'qed', 'quorum', 'raw', 'rbd',
+             { 'name': 'replication', 'if': 'CONFIG_REPLICATION' },
++            'pbs',
              'ssh', 'throttle', 'vdi', 'vhdx', 'vmdk', 'vpc', 'vvfat' ] }
  
  ##
-@@ -3039,6 +3039,17 @@
+@@ -3125,6 +3126,17 @@
  { 'struct': 'BlockdevOptionsNull',
    'data': { '*size': 'int', '*latency-ns': 'uint64', '*read-zeroes': 'bool' } }
  
@@ -390,11 +397,11 @@ index 0fda1e3fd3..553112d998 100644
  ##
  # @BlockdevOptionsNVMe:
  #
-@@ -4148,6 +4159,7 @@
+@@ -4367,6 +4379,7 @@
        'nfs':        'BlockdevOptionsNfs',
        'null-aio':   'BlockdevOptionsNull',
        'null-co':    'BlockdevOptionsNull',
 +      'pbs':        'BlockdevOptionsPbs',
        'nvme':       'BlockdevOptionsNVMe',
        'parallels':  'BlockdevOptionsGenericFormat',
-       'qcow2':      'BlockdevOptionsQcow2',
+       'preallocate':'BlockdevOptionsPreallocate',

debian/patches/pve/0033-PVE-add-query_proxmox_support-QMP-command.patch

@@ -16,10 +16,10 @@ Signed-off-by: Stefan Reiter <s.reiter@proxmox.com>
  2 files changed, 38 insertions(+)
 
 diff --git a/pve-backup.c b/pve-backup.c
-index b8182aaf89..98e79552ef 100644
+index c15abefdda..4684789813 100644
 --- a/pve-backup.c
 +++ b/pve-backup.c
-@@ -1073,3 +1073,12 @@ BackupStatus *qmp_query_backup(Error **errp)
+@@ -1075,3 +1075,12 @@ BackupStatus *qmp_query_backup(Error **errp)
  
      return info;
  }
@@ -33,10 +33,10 @@ index b8182aaf89..98e79552ef 100644
 +    return ret;
 +}
 diff --git a/qapi/block-core.json b/qapi/block-core.json
-index 553112d998..f3608390c4 100644
+index 777863e33b..cfd980b70f 100644
 --- a/qapi/block-core.json
 +++ b/qapi/block-core.json
-@@ -868,6 +868,35 @@
+@@ -867,6 +867,35 @@
  ##
  { 'command': 'backup-cancel' }
  

debian/patches/pve/0034-PVE-add-query-pbs-bitmap-info-QMP-call.patch

@@ -7,6 +7,7 @@ Returns advanced information about dirty bitmaps used (or not used) for
 the latest PBS backup.
 
 Signed-off-by: Stefan Reiter <s.reiter@proxmox.com>
+Signed-off-by: Thomas Lamprecht <t.lamprecht@proxmox.com>
 ---
  monitor/hmp-cmds.c   |  28 ++++++-----
  pve-backup.c         | 117 ++++++++++++++++++++++++++++++++-----------
@@ -14,7 +15,7 @@ Signed-off-by: Stefan Reiter <s.reiter@proxmox.com>
  3 files changed, 159 insertions(+), 42 deletions(-)
 
 diff --git a/monitor/hmp-cmds.c b/monitor/hmp-cmds.c
-index 604026bb37..95f4e7f5c1 100644
+index cfd7a60f32..b613190a3c 100644
 --- a/monitor/hmp-cmds.c
 +++ b/monitor/hmp-cmds.c
 @@ -198,6 +198,7 @@ void hmp_info_mice(Monitor *mon, const QDict *qdict)
@@ -68,7 +69,7 @@ index 604026bb37..95f4e7f5c1 100644
                             info->zero_bytes, zero_per);
  
 diff --git a/pve-backup.c b/pve-backup.c
-index 98e79552ef..8305105fd5 100644
+index 4684789813..f90abaa50a 100644
 --- a/pve-backup.c
 +++ b/pve-backup.c
 @@ -46,6 +46,7 @@ static struct PVEBackupState {
@@ -79,7 +80,7 @@ index 98e79552ef..8305105fd5 100644
      } stat;
      int64_t speed;
      VmaWriter *vmaw;
-@@ -670,7 +671,6 @@ static void coroutine_fn pvebackup_co_prepare(void *opaque)
+@@ -672,7 +673,6 @@ static void coroutine_fn pvebackup_co_prepare(void *opaque)
      }
  
      size_t total = 0;
@@ -87,7 +88,7 @@ index 98e79552ef..8305105fd5 100644
  
      l = di_list;
      while (l) {
-@@ -691,18 +691,33 @@ static void coroutine_fn pvebackup_co_prepare(void *opaque)
+@@ -693,18 +693,33 @@ static void coroutine_fn pvebackup_co_prepare(void *opaque)
  
      uuid_generate(uuid);
  
@@ -124,7 +125,7 @@ index 98e79552ef..8305105fd5 100644
          }
  
          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)
+@@ -731,12 +746,12 @@ 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);
@@ -139,7 +140,7 @@ index 98e79552ef..8305105fd5 100644
  
          /* register all devices */
          l = di_list;
-@@ -745,6 +760,8 @@ static void coroutine_fn pvebackup_co_prepare(void *opaque)
+@@ -747,6 +762,8 @@ 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);
@@ -148,7 +149,7 @@ index 98e79552ef..8305105fd5 100644
  
              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)
+@@ -755,49 +772,59 @@ 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) {
@@ -218,7 +219,7 @@ index 98e79552ef..8305105fd5 100644
          }
  
          /* register all devices for vma writer */
-@@ -805,7 +832,7 @@ static void coroutine_fn pvebackup_co_prepare(void *opaque)
+@@ -807,7 +834,7 @@ 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))) {
@@ -227,7 +228,7 @@ index 98e79552ef..8305105fd5 100644
              }
  
              const char *devname = bdrv_get_device_name(di->bs);
-@@ -813,16 +840,14 @@ static void coroutine_fn pvebackup_co_prepare(void *opaque)
+@@ -815,16 +842,14 @@ 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");
@@ -246,7 +247,7 @@ index 98e79552ef..8305105fd5 100644
          }
          backup_dir = task->backup_file;
  
-@@ -839,18 +864,18 @@ static void coroutine_fn pvebackup_co_prepare(void *opaque)
+@@ -841,18 +866,18 @@ static void coroutine_fn pvebackup_co_prepare(void *opaque)
                              di->size, flags, false, &local_err);
              if (local_err) {
                  error_propagate(task->errp, local_err);
@@ -268,7 +269,7 @@ index 98e79552ef..8305105fd5 100644
      }
  
  
-@@ -858,7 +883,7 @@ static void coroutine_fn pvebackup_co_prepare(void *opaque)
+@@ -860,7 +885,7 @@ 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) {
@@ -277,7 +278,7 @@ index 98e79552ef..8305105fd5 100644
          }
      }
  
-@@ -866,12 +891,11 @@ static void coroutine_fn pvebackup_co_prepare(void *opaque)
+@@ -868,12 +893,11 @@ 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) {
@@ -292,7 +293,7 @@ index 98e79552ef..8305105fd5 100644
  
      if (backup_state.stat.error) {
          error_free(backup_state.stat.error);
-@@ -891,10 +915,9 @@ static void coroutine_fn pvebackup_co_prepare(void *opaque)
+@@ -893,10 +917,9 @@ static void coroutine_fn pvebackup_co_prepare(void *opaque)
      char *uuid_str = g_strdup(backup_state.stat.uuid_str);
  
      backup_state.stat.total = total;
@@ -304,7 +305,7 @@ index 98e79552ef..8305105fd5 100644
  
      qemu_mutex_unlock(&backup_state.stat.lock);
  
-@@ -911,6 +934,9 @@ static void coroutine_fn pvebackup_co_prepare(void *opaque)
+@@ -913,6 +936,9 @@ static void coroutine_fn pvebackup_co_prepare(void *opaque)
      task->result = uuid_info;
      return;
  
@@ -314,7 +315,7 @@ index 98e79552ef..8305105fd5 100644
  err:
  
      l = di_list;
-@@ -1074,11 +1100,42 @@ BackupStatus *qmp_query_backup(Error **errp)
+@@ -1076,11 +1102,42 @@ BackupStatus *qmp_query_backup(Error **errp)
      return info;
  }
  
@@ -358,10 +359,10 @@ index 98e79552ef..8305105fd5 100644
      return ret;
  }
 diff --git a/qapi/block-core.json b/qapi/block-core.json
-index f3608390c4..f57fda122c 100644
+index cfd980b70f..8833060385 100644
 --- a/qapi/block-core.json
 +++ b/qapi/block-core.json
-@@ -876,6 +876,8 @@
+@@ -875,6 +875,8 @@
  # @pbs-dirty-bitmap: True if dirty-bitmap-incremental backups to PBS are
  #                    supported.
  #
@@ -370,7 +371,7 @@ index f3608390c4..f57fda122c 100644
  # @pbs-dirty-bitmap-savevm: True if 'dirty-bitmaps' migration capability can
  #                           safely be set for savevm-async.
  #
-@@ -884,6 +886,7 @@
+@@ -883,6 +885,7 @@
  ##
  { 'struct': 'ProxmoxSupportStatus',
    'data': { 'pbs-dirty-bitmap': 'bool',
@@ -378,7 +379,7 @@ index f3608390c4..f57fda122c 100644
              'pbs-dirty-bitmap-savevm': 'bool',
              'pbs-library-version': 'str' } }
  
-@@ -897,6 +900,59 @@
+@@ -896,6 +899,59 @@
  ##
  { 'command': 'query-proxmox-support', 'returns': 'ProxmoxSupportStatus' }
  

debian/patches/pve/0035-PVE-redirect-stderr-to-journal-when-daemonized.patch

@@ -7,33 +7,34 @@ 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 | 2 ++
  os-posix.c  | 7 +++++--
  2 files changed, 7 insertions(+), 2 deletions(-)
 
 diff --git a/meson.build b/meson.build
-index 4d156d35ce..737ea9e5d7 100644
+index 85b3c63199..31ba7d70d6 100644
 --- a/meson.build
 +++ b/meson.build
-@@ -726,6 +726,7 @@ keyutils = dependency('libkeyutils', required: false,
+@@ -1203,6 +1203,7 @@ keyutils = dependency('libkeyutils', required: false,
  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)
  
- # Malloc tests
-@@ -1539,6 +1540,7 @@ blockdev_ss.add(files(
- # os-posix.c contains POSIX-specific functions used by qemu-storage-daemon,
- # os-win32.c does not
- blockdev_ss.add(when: 'CONFIG_POSIX', if_true: files('os-posix.c'))
-+blockdev_ss.add(when: 'CONFIG_POSIX', if_true: libsystemd)
- softmmu_ss.add(when: 'CONFIG_WIN32', if_true: [files('os-win32.c')])
+ # libselinux
+@@ -2571,6 +2572,7 @@ if have_block
+   # os-posix.c contains POSIX-specific functions used by qemu-storage-daemon,
+   # os-win32.c does not
+   blockdev_ss.add(when: 'CONFIG_POSIX', if_true: files('os-posix.c'))
++  blockdev_ss.add(when: 'CONFIG_POSIX', if_true: libsystemd)
+   softmmu_ss.add(when: 'CONFIG_WIN32', if_true: [files('os-win32.c')])
+ endif
  
- common_ss.add(files('cpus-common.c'))
 diff --git a/os-posix.c b/os-posix.c
-index 1de2839554..ac4f652923 100644
+index ae6c9f2a5e..36807806bf 100644
 --- a/os-posix.c
 +++ b/os-posix.c
 @@ -28,6 +28,8 @@
@@ -45,7 +46,7 @@ index 1de2839554..ac4f652923 100644
  
  #include "qemu-common.h"
  /* Needed early for CONFIG_BSD etc. */
-@@ -288,9 +290,10 @@ void os_setup_post(void)
+@@ -291,9 +293,10 @@ void os_setup_post(void)
  
          dup2(fd, 0);
          dup2(fd, 1);

debian/patches/pve/0036-PVE-Add-sequential-job-transaction-support.patch

@@ -4,16 +4,17 @@ 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              | 31 +++++++++++++++++++++++++++++++
  2 files changed, 43 insertions(+)
 
 diff --git a/include/qemu/job.h b/include/qemu/job.h
-index 32aabb1c60..f7a6a0926a 100644
+index 6e67b6977f..60376c99ee 100644
 --- a/include/qemu/job.h
 +++ b/include/qemu/job.h
-@@ -280,6 +280,18 @@ typedef enum JobCreateFlags {
+@@ -294,6 +294,18 @@ typedef enum JobCreateFlags {
   */
  JobTxn *job_txn_new(void);
  
@@ -33,7 +34,7 @@ index 32aabb1c60..f7a6a0926a 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 f9884e7d9d..05b7797e82 100644
+index af25dd5b98..d0d152e697 100644
 --- a/job.c
 +++ b/job.c
 @@ -72,6 +72,8 @@ struct JobTxn {
@@ -71,7 +72,7 @@ index f9884e7d9d..05b7797e82 100644
  static void job_txn_ref(JobTxn *txn)
  {
      txn->refcnt++;
-@@ -841,6 +862,9 @@ static void job_completed_txn_success(Job *job)
+@@ -888,6 +909,9 @@ static void job_completed_txn_success(Job *job)
       */
      QLIST_FOREACH(other_job, &txn->jobs, txn_list) {
          if (!job_is_completed(other_job)) {
@@ -81,7 +82,7 @@ index f9884e7d9d..05b7797e82 100644
              return;
          }
          assert(other_job->ret == 0);
-@@ -1011,6 +1035,13 @@ int job_finish_sync(Job *job, void (*finish)(Job *, Error **errp), Error **errp)
+@@ -1082,6 +1106,13 @@ int job_finish_sync(Job *job, void (*finish)(Job *, Error **errp), Error **errp)
          return -EBUSY;
      }
  

debian/patches/pve/0037-PVE-Backup-Use-a-transaction-to-synchronize-job-stat.patch

@@ -11,12 +11,15 @@ 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>
+Signed-off-by: Thomas Lamprecht <t.lamprecht@proxmox.com>
+[add new force parameter to job_cancel_sync calls]
+Signed-off-by: Fabian Ebner <f.ebner@proxmox.com>
 ---
  pve-backup.c | 167 +++++++++++++++------------------------------------
  1 file changed, 49 insertions(+), 118 deletions(-)
 
 diff --git a/pve-backup.c b/pve-backup.c
-index 8305105fd5..d7f2b2206f 100644
+index f90abaa50a..63c686463f 100644
 --- a/pve-backup.c
 +++ b/pve-backup.c
 @@ -52,6 +52,7 @@ static struct PVEBackupState {
@@ -158,7 +161,7 @@ index 8305105fd5..d7f2b2206f 100644
 -        if (next_job) {
 -            AioContext *aio_context = next_job->job.aio_context;
 -            aio_context_acquire(aio_context);
--            job_cancel_sync(&next_job->job);
+-            job_cancel_sync(&next_job->job, true);
 -            aio_context_release(aio_context);
 -        } else {
 -            break;
@@ -166,7 +169,7 @@ index 8305105fd5..d7f2b2206f 100644
 +    if (cancel_job) {
 +        AioContext *aio_context = cancel_job->job.aio_context;
 +        aio_context_acquire(aio_context);
-+        job_cancel_sync(&cancel_job->job);
++        job_cancel_sync(&cancel_job->job, true);
 +        job_unref(&cancel_job->job);
 +        aio_context_release(aio_context);
      }
@@ -200,7 +203,7 @@ index 8305105fd5..d7f2b2206f 100644
 -            if (job_should_pause(&job->job)) {
 -                bool error_or_canceled = pvebackup_error_or_canceled();
 -                if (error_or_canceled) {
--                    job_cancel_sync(&job->job);
+-                    job_cancel_sync(&job->job, true);
 -                } else {
 -                    job_resume(&job->job);
 -                }
@@ -228,19 +231,19 @@ index 8305105fd5..d7f2b2206f 100644
 +    }
 +    backup_state.txn = job_txn_new_seq();
 +
+     BackupPerf perf = { .max_workers = 16 };
+ 
      /* 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) {
+@@ -526,7 +450,7 @@ 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);
+             bitmap_mode, false, NULL, &perf, BLOCKDEV_ON_ERROR_REPORT, BLOCKDEV_ON_ERROR_REPORT,
+-            JOB_DEFAULT, pvebackup_complete_cb, di, 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) {
+@@ -538,7 +462,8 @@ static bool create_backup_jobs(void) {
              pvebackup_propagate_error(create_job_err);
              break;
          }
@@ -250,7 +253,7 @@ index 8305105fd5..d7f2b2206f 100644
  
          bdrv_unref(di->target);
          di->target = NULL;
-@@ -554,6 +479,10 @@ static bool create_backup_jobs(void) {
+@@ -556,6 +481,10 @@ static bool create_backup_jobs(void) {
                  bdrv_unref(di->target);
                  di->target = NULL;
              }
@@ -261,7 +264,7 @@ index 8305105fd5..d7f2b2206f 100644
          }
      }
  
-@@ -944,10 +873,6 @@ err:
+@@ -946,10 +875,6 @@ err:
          PVEBackupDevInfo *di = (PVEBackupDevInfo *)l->data;
          l = g_list_next(l);
  
@@ -272,7 +275,7 @@ index 8305105fd5..d7f2b2206f 100644
          if (di->target) {
              bdrv_unref(di->target);
          }
-@@ -1036,9 +961,15 @@ UuidInfo *qmp_backup(
+@@ -1038,9 +963,15 @@ UuidInfo *qmp_backup(
      block_on_coroutine_fn(pvebackup_co_prepare, &task);
  
      if (*errp == NULL) {

debian/patches/pve/0038-PVE-Backup-Don-t-block-on-finishing-and-cleanup-crea.patch

@@ -48,13 +48,16 @@ before.
 [0] https://lists.gnu.org/archive/html/qemu-devel/2020-09/msg03515.html
 
 Signed-off-by: Stefan Reiter <s.reiter@proxmox.com>
+Signed-off-by: Thomas Lamprecht <t.lamprecht@proxmox.com>
+[add new force parameter to job_cancel_sync calls]
+Signed-off-by: Fabian Ebner <f.ebner@proxmox.com>
 ---
  pve-backup.c         | 217 ++++++++++++++++++++++++++++---------------
  qapi/block-core.json |   5 +-
  2 files changed, 144 insertions(+), 78 deletions(-)
 
 diff --git a/pve-backup.c b/pve-backup.c
-index d7f2b2206f..e671ed8d48 100644
+index 63c686463f..6f05796fad 100644
 --- a/pve-backup.c
 +++ b/pve-backup.c
 @@ -33,7 +33,9 @@ const char *PBS_BITMAP_NAME = "pbs-incremental-dirty-bitmap";
@@ -228,7 +231,7 @@ index d7f2b2206f..e671ed8d48 100644
 +    Job *job = (Job*)data->data;
 +    AioContext *job_ctx = job->aio_context;
 +    aio_context_acquire(job_ctx);
-+    job_cancel_sync(job);
++    job_cancel_sync(job, true);
 +    aio_context_release(job_ctx);
 +    aio_co_enter(data->ctx, data->co);
 +}
@@ -267,7 +270,7 @@ index d7f2b2206f..e671ed8d48 100644
 -    if (cancel_job) {
 -        AioContext *aio_context = cancel_job->job.aio_context;
 -        aio_context_acquire(aio_context);
--        job_cancel_sync(&cancel_job->job);
+-        job_cancel_sync(&cancel_job->job, true);
 -        job_unref(&cancel_job->job);
 -        aio_context_release(aio_context);
 -    }
@@ -301,7 +304,7 @@ index d7f2b2206f..e671ed8d48 100644
      Error *local_err = NULL;
  
      /* create job transaction to synchronize bitmap commit and cancel all
-@@ -452,24 +494,19 @@ static bool create_backup_jobs(void) {
+@@ -454,24 +496,19 @@ static bool create_backup_jobs(void) {
  
          aio_context_release(aio_context);
  
@@ -331,13 +334,13 @@ index d7f2b2206f..e671ed8d48 100644
          l = backup_state.di_list;
          while (l) {
              PVEBackupDevInfo *di = (PVEBackupDevInfo *)l->data;
-@@ -481,12 +518,17 @@ static bool create_backup_jobs(void) {
+@@ -483,12 +520,17 @@ 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_cancel_sync(&di->job->job, true);
                  job_unref(&di->job->job);
 +                aio_context_release(ctx);
              }
@@ -350,7 +353,7 @@ index d7f2b2206f..e671ed8d48 100644
  }
  
  typedef struct QmpBackupTask {
-@@ -523,11 +565,12 @@ typedef struct QmpBackupTask {
+@@ -525,11 +567,12 @@ typedef struct QmpBackupTask {
      UuidInfo *result;
  } QmpBackupTask;
  
@@ -364,7 +367,7 @@ index d7f2b2206f..e671ed8d48 100644
      QmpBackupTask *task = opaque;
  
      task->result = NULL; // just to be sure
-@@ -548,8 +591,9 @@ static void coroutine_fn pvebackup_co_prepare(void *opaque)
+@@ -550,8 +593,9 @@ static void coroutine_fn pvebackup_co_prepare(void *opaque)
      const char *firewall_name = "qemu-server.fw";
  
      if (backup_state.di_list) {
@@ -375,7 +378,7 @@ index d7f2b2206f..e671ed8d48 100644
          return;
      }
  
-@@ -616,6 +660,8 @@ static void coroutine_fn pvebackup_co_prepare(void *opaque)
+@@ -618,6 +662,8 @@ static void coroutine_fn pvebackup_co_prepare(void *opaque)
          }
          di->size = size;
          total += size;
@@ -384,7 +387,7 @@ index d7f2b2206f..e671ed8d48 100644
      }
  
      uuid_generate(uuid);
-@@ -847,6 +893,8 @@ static void coroutine_fn pvebackup_co_prepare(void *opaque)
+@@ -849,6 +895,8 @@ 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;
@@ -393,7 +396,7 @@ index d7f2b2206f..e671ed8d48 100644
  
      qemu_mutex_unlock(&backup_state.stat.lock);
  
-@@ -861,6 +909,33 @@ static void coroutine_fn pvebackup_co_prepare(void *opaque)
+@@ -863,6 +911,33 @@ static void coroutine_fn pvebackup_co_prepare(void *opaque)
      uuid_info->UUID = uuid_str;
  
      task->result = uuid_info;
@@ -427,7 +430,7 @@ index d7f2b2206f..e671ed8d48 100644
      return;
  
  err_mutex:
-@@ -883,6 +958,7 @@ err:
+@@ -885,6 +960,7 @@ err:
          g_free(di);
      }
      g_list_free(di_list);
@@ -435,7 +438,7 @@ index d7f2b2206f..e671ed8d48 100644
  
      if (devs) {
          g_strfreev(devs);
-@@ -903,6 +979,8 @@ err:
+@@ -905,6 +981,8 @@ err:
      }
  
      task->result = NULL;
@@ -444,7 +447,7 @@ index d7f2b2206f..e671ed8d48 100644
      return;
  }
  
-@@ -956,24 +1034,8 @@ UuidInfo *qmp_backup(
+@@ -958,24 +1036,8 @@ UuidInfo *qmp_backup(
          .errp = errp,
      };
  
@@ -469,7 +472,7 @@ index d7f2b2206f..e671ed8d48 100644
      return task.result;
  }
  
-@@ -1025,6 +1087,7 @@ BackupStatus *qmp_query_backup(Error **errp)
+@@ -1027,6 +1089,7 @@ BackupStatus *qmp_query_backup(Error **errp)
      info->transferred = backup_state.stat.transferred;
      info->has_reused = true;
      info->reused = backup_state.stat.reused;
@@ -478,10 +481,10 @@ index d7f2b2206f..e671ed8d48 100644
      qemu_mutex_unlock(&backup_state.stat.lock);
  
 diff --git a/qapi/block-core.json b/qapi/block-core.json
-index f57fda122c..9b827cbe43 100644
+index 8833060385..6a67adf923 100644
 --- a/qapi/block-core.json
 +++ b/qapi/block-core.json
-@@ -775,12 +775,15 @@
+@@ -774,12 +774,15 @@
  #
  # @uuid: uuid for this backup job
  #

debian/patches/pve/0039-PVE-Migrate-dirty-bitmap-state-via-savevm.patch

@@ -12,21 +12,22 @@ 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>
 ---
  include/migration/misc.h |   3 ++
  migration/meson.build    |   2 +
+ migration/migration.c    |   1 +
  migration/pbs-state.c    | 106 +++++++++++++++++++++++++++++++++++++++
  pve-backup.c             |   1 +
  qapi/block-core.json     |   6 +++
- softmmu/vl.c             |   1 +
  6 files changed, 119 insertions(+)
  create mode 100644 migration/pbs-state.c
 
 diff --git a/include/migration/misc.h b/include/migration/misc.h
-index 34e7d75713..f83816dd3c 100644
+index 465906710d..4f0aeceb6f 100644
 --- a/include/migration/misc.h
 +++ b/include/migration/misc.h
-@@ -75,4 +75,7 @@ bool migration_in_incoming_postcopy(void);
+@@ -75,4 +75,7 @@ bool migration_in_bg_snapshot(void);
  /* migration/block-dirty-bitmap.c */
  void dirty_bitmap_mig_init(void);
  
@@ -35,13 +36,13 @@ index 34e7d75713..f83816dd3c 100644
 +
  #endif
 diff --git a/migration/meson.build b/migration/meson.build
-index e62b79b60f..b90a04aa75 100644
+index ea9aedeefc..c27dc9bd97 100644
 --- a/migration/meson.build
 +++ b/migration/meson.build
 @@ -7,8 +7,10 @@ migration_files = files(
    'qemu-file-channel.c',
    'qemu-file.c',
-   'qjson.c',
+   'yank_functions.c',
 +  'pbs-state.c',
  )
  softmmu_ss.add(migration_files)
@@ -49,6 +50,18 @@ index e62b79b60f..b90a04aa75 100644
  
  softmmu_ss.add(files(
    'block-dirty-bitmap.c',
+diff --git a/migration/migration.c b/migration/migration.c
+index abaf6f9e3d..d925fd7488 100644
+--- a/migration/migration.c
++++ b/migration/migration.c
+@@ -213,6 +213,7 @@ void migration_object_init(void)
+     blk_mig_init();
+     ram_mig_init();
+     dirty_bitmap_mig_init();
++    pbs_state_mig_init();
+ }
+ 
+ void migration_cancel(const Error *error)
 diff --git a/migration/pbs-state.c b/migration/pbs-state.c
 new file mode 100644
 index 0000000000..29f2b3860d
@@ -162,10 +175,10 @@ index 0000000000..29f2b3860d
 +                         NULL);
 +}
 diff --git a/pve-backup.c b/pve-backup.c
-index e671ed8d48..bd2647e5f3 100644
+index 6f05796fad..5fa3cc1352 100644
 --- a/pve-backup.c
 +++ b/pve-backup.c
-@@ -1130,6 +1130,7 @@ ProxmoxSupportStatus *qmp_query_proxmox_support(Error **errp)
+@@ -1132,6 +1132,7 @@ 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;
@@ -174,10 +187,10 @@ index e671ed8d48..bd2647e5f3 100644
      return ret;
  }
 diff --git a/qapi/block-core.json b/qapi/block-core.json
-index 9b827cbe43..30eb1262ff 100644
+index 6a67adf923..c99ddf8628 100644
 --- a/qapi/block-core.json
 +++ b/qapi/block-core.json
-@@ -884,6 +884,11 @@
+@@ -883,6 +883,11 @@
  # @pbs-dirty-bitmap-savevm: True if 'dirty-bitmaps' migration capability can
  #                           safely be set for savevm-async.
  #
@@ -189,7 +202,7 @@ index 9b827cbe43..30eb1262ff 100644
  # @pbs-library-version: Running version of libproxmox-backup-qemu0 library.
  #
  ##
-@@ -891,6 +896,7 @@
+@@ -890,6 +895,7 @@
    'data': { 'pbs-dirty-bitmap': 'bool',
              'query-bitmap-info': 'bool',
              'pbs-dirty-bitmap-savevm': 'bool',
@@ -197,15 +210,3 @@ index 9b827cbe43..30eb1262ff 100644
              'pbs-library-version': 'str' } }
  
  ##
-diff --git a/softmmu/vl.c b/softmmu/vl.c
-index 5b5512128e..6721889fee 100644
---- a/softmmu/vl.c
-+++ b/softmmu/vl.c
-@@ -4304,6 +4304,7 @@ 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);

debian/patches/pve/0040-migration-block-dirty-bitmap-migrate-other-bitmaps-e.patch

@@ -13,15 +13,16 @@ 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 c61d382be8..26e4e5c99c 100644
+index 9aba7d9c22..f4ecf9c9f9 100644
 --- a/migration/block-dirty-bitmap.c
 +++ b/migration/block-dirty-bitmap.c
-@@ -534,7 +534,7 @@ static int add_bitmaps_to_list(DBMSaveState *s, BlockDriverState *bs,
+@@ -538,7 +538,7 @@ 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);

debian/patches/pve/0041-PVE-fall-back-to-open-iscsi-initiatorname.patch

@@ -15,15 +15,16 @@ 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 e30a7e3606..6c70bbe351 100644
+index 57aa07a40d..a8902b84d5 100644
 --- a/block/iscsi.c
 +++ b/block/iscsi.c
-@@ -1374,12 +1374,42 @@ static char *get_initiator_name(QemuOpts *opts)
+@@ -1386,12 +1386,42 @@ static char *get_initiator_name(QemuOpts *opts)
      const char *name;
      char *iscsi_name;
      UuidInfo *uuid_info;

debian/patches/pve/0042-PVE-Use-coroutine-QMP-for-backup-cancel_backup.patch

@@ -22,6 +22,7 @@ monitor for that coroutine ourselves, but let's just fix it the right
 way instead)
 
 Signed-off-by: Stefan Reiter <s.reiter@proxmox.com>
+Signed-off-by: Thomas Lamprecht <t.lamprecht@proxmox.com>
 ---
  block/monitor/block-hmp-cmds.c |   4 +-
  hmp-commands.hx                |   2 +
@@ -31,10 +32,10 @@ Signed-off-by: Stefan Reiter <s.reiter@proxmox.com>
  5 files changed, 77 insertions(+), 196 deletions(-)
 
 diff --git a/block/monitor/block-hmp-cmds.c b/block/monitor/block-hmp-cmds.c
-index 46c63b1cf9..11c84d5508 100644
+index 4481b60a5c..c9849a5b29 100644
 --- a/block/monitor/block-hmp-cmds.c
 +++ b/block/monitor/block-hmp-cmds.c
-@@ -1013,7 +1013,7 @@ void hmp_info_snapshots(Monitor *mon, const QDict *qdict)
+@@ -1016,7 +1016,7 @@ void hmp_info_snapshots(Monitor *mon, const QDict *qdict)
      g_free(global_snapshots);
  }
  
@@ -43,7 +44,7 @@ index 46c63b1cf9..11c84d5508 100644
  {
      Error *error = NULL;
  
-@@ -1022,7 +1022,7 @@ void hmp_backup_cancel(Monitor *mon, const QDict *qdict)
+@@ -1025,7 +1025,7 @@ void hmp_backup_cancel(Monitor *mon, const QDict *qdict)
      hmp_handle_error(mon, error);
  }
  
@@ -53,10 +54,10 @@ index 46c63b1cf9..11c84d5508 100644
      Error *error = NULL;
  
 diff --git a/hmp-commands.hx b/hmp-commands.hx
-index 0c6b944850..54de3f80e6 100644
+index d4bb00216e..4e21911fa6 100644
 --- a/hmp-commands.hx
 +++ b/hmp-commands.hx
-@@ -108,6 +108,7 @@ ERST
+@@ -109,6 +109,7 @@ ERST
  		    "\n\t\t\t Use -d to dump data into a directory instead"
  		    "\n\t\t\t of using VMA format.",
          .cmd = hmp_backup,
@@ -64,7 +65,7 @@ index 0c6b944850..54de3f80e6 100644
      },
  
  SRST
-@@ -121,6 +122,7 @@ ERST
+@@ -122,6 +123,7 @@ ERST
          .params     = "",
          .help       = "cancel the current VM backup",
          .cmd        = hmp_backup_cancel,
@@ -115,7 +116,7 @@ index 4ce7bc0b5e..0923037dec 100644
  static void proxmox_backup_schedule_wake(void *data) {
      CoCtxData *waker = (CoCtxData *)data;
 diff --git a/pve-backup.c b/pve-backup.c
-index bd2647e5f3..dec9c0d188 100644
+index 5fa3cc1352..323014744c 100644
 --- a/pve-backup.c
 +++ b/pve-backup.c
 @@ -357,7 +357,7 @@ static void job_cancel_bh(void *opaque) {
@@ -139,7 +140,7 @@ index bd2647e5f3..dec9c0d188 100644
  // assumes the caller holds backup_mutex
  static int coroutine_fn pvebackup_co_add_config(
      const char *file,
-@@ -531,50 +526,27 @@ static void create_backup_jobs_bh(void *opaque) {
+@@ -533,50 +528,27 @@ static void create_backup_jobs_bh(void *opaque) {
      aio_co_enter(data->ctx, data->co);
  }
  
@@ -206,7 +207,7 @@ index bd2647e5f3..dec9c0d188 100644
      BlockBackend *blk;
      BlockDriverState *bs = NULL;
      const char *backup_dir = NULL;
-@@ -591,17 +563,17 @@ static void coroutine_fn pvebackup_co_prepare(void *opaque)
+@@ -593,17 +565,17 @@ static void coroutine_fn pvebackup_co_prepare(void *opaque)
      const char *firewall_name = "qemu-server.fw";
  
      if (backup_state.di_list) {
@@ -229,7 +230,7 @@ index bd2647e5f3..dec9c0d188 100644
  
          gchar **d = devs;
          while (d && *d) {
-@@ -609,14 +581,14 @@ static void coroutine_fn pvebackup_co_prepare(void *opaque)
+@@ -611,14 +583,14 @@ static void coroutine_fn pvebackup_co_prepare(void *opaque)
              if (blk) {
                  bs = blk_bs(blk);
                  if (!bdrv_is_inserted(bs)) {
@@ -246,7 +247,7 @@ index bd2647e5f3..dec9c0d188 100644
                            "Device '%s' not found", *d);
                  goto err;
              }
-@@ -639,7 +611,7 @@ static void coroutine_fn pvebackup_co_prepare(void *opaque)
+@@ -641,7 +613,7 @@ static void coroutine_fn pvebackup_co_prepare(void *opaque)
      }
  
      if (!di_list) {
@@ -255,7 +256,7 @@ index bd2647e5f3..dec9c0d188 100644
          goto err;
      }
  
-@@ -649,13 +621,13 @@ static void coroutine_fn pvebackup_co_prepare(void *opaque)
+@@ -651,13 +623,13 @@ static void coroutine_fn pvebackup_co_prepare(void *opaque)
      while (l) {
          PVEBackupDevInfo *di = (PVEBackupDevInfo *)l->data;
          l = g_list_next(l);
@@ -271,7 +272,7 @@ index bd2647e5f3..dec9c0d188 100644
              goto err;
          }
          di->size = size;
-@@ -682,47 +654,44 @@ static void coroutine_fn pvebackup_co_prepare(void *opaque)
+@@ -684,47 +656,44 @@ static void coroutine_fn pvebackup_co_prepare(void *opaque)
      }
  
      if (format == BACKUP_FORMAT_PBS) {
@@ -336,7 +337,7 @@ index bd2647e5f3..dec9c0d188 100644
          if (connect_result < 0)
              goto err_mutex;
  
-@@ -741,9 +710,9 @@ static void coroutine_fn pvebackup_co_prepare(void *opaque)
+@@ -743,9 +712,9 @@ static void coroutine_fn pvebackup_co_prepare(void *opaque)
              BdrvDirtyBitmap *bitmap = bdrv_find_dirty_bitmap(di->bs, PBS_BITMAP_NAME);
              bool expect_only_dirty = false;
  
@@ -348,7 +349,7 @@ index bd2647e5f3..dec9c0d188 100644
                      if (!bitmap) {
                          goto err_mutex;
                      }
-@@ -773,12 +742,12 @@ static void coroutine_fn pvebackup_co_prepare(void *opaque)
+@@ -775,12 +744,12 @@ static void coroutine_fn pvebackup_co_prepare(void *opaque)
                  }
              }
  
@@ -363,7 +364,7 @@ index bd2647e5f3..dec9c0d188 100644
                  goto err_mutex;
              }
  
-@@ -792,10 +761,10 @@ static void coroutine_fn pvebackup_co_prepare(void *opaque)
+@@ -794,10 +763,10 @@ static void coroutine_fn pvebackup_co_prepare(void *opaque)
              backup_state.stat.bitmap_list = g_list_append(backup_state.stat.bitmap_list, info);
          }
      } else if (format == BACKUP_FORMAT_VMA) {
@@ -376,7 +377,7 @@ index bd2647e5f3..dec9c0d188 100644
              }
              goto err_mutex;
          }
-@@ -806,25 +775,25 @@ static void coroutine_fn pvebackup_co_prepare(void *opaque)
+@@ -808,25 +777,25 @@ static void coroutine_fn pvebackup_co_prepare(void *opaque)
              PVEBackupDevInfo *di = (PVEBackupDevInfo *)l->data;
              l = g_list_next(l);
  
@@ -408,7 +409,7 @@ index bd2647e5f3..dec9c0d188 100644
  
          l = di_list;
          while (l) {
-@@ -838,34 +807,34 @@ static void coroutine_fn pvebackup_co_prepare(void *opaque)
+@@ -840,34 +809,34 @@ static void coroutine_fn pvebackup_co_prepare(void *opaque)
              bdrv_img_create(di->targetfile, "raw", NULL, NULL, NULL,
                              di->size, flags, false, &local_err);
              if (local_err) {
@@ -452,7 +453,7 @@ index bd2647e5f3..dec9c0d188 100644
              goto err_mutex;
          }
      }
-@@ -883,7 +852,7 @@ static void coroutine_fn pvebackup_co_prepare(void *opaque)
+@@ -885,7 +854,7 @@ static void coroutine_fn pvebackup_co_prepare(void *opaque)
      if (backup_state.stat.backup_file) {
          g_free(backup_state.stat.backup_file);
      }
@@ -461,7 +462,7 @@ index bd2647e5f3..dec9c0d188 100644
  
      uuid_copy(backup_state.stat.uuid, uuid);
      uuid_unparse_lower(uuid, backup_state.stat.uuid_str);
-@@ -898,7 +867,7 @@ static void coroutine_fn pvebackup_co_prepare(void *opaque)
+@@ -900,7 +869,7 @@ static void coroutine_fn pvebackup_co_prepare(void *opaque)
  
      qemu_mutex_unlock(&backup_state.stat.lock);
  
@@ -470,7 +471,7 @@ index bd2647e5f3..dec9c0d188 100644
  
      backup_state.vmaw = vmaw;
      backup_state.pbs = pbs;
-@@ -908,8 +877,6 @@ static void coroutine_fn pvebackup_co_prepare(void *opaque)
+@@ -910,8 +879,6 @@ static void coroutine_fn pvebackup_co_prepare(void *opaque)
      uuid_info = g_malloc0(sizeof(*uuid_info));
      uuid_info->UUID = uuid_str;
  
@@ -479,7 +480,7 @@ index bd2647e5f3..dec9c0d188 100644
      /* 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.
-@@ -923,7 +890,7 @@ static void coroutine_fn pvebackup_co_prepare(void *opaque)
+@@ -925,7 +892,7 @@ static void coroutine_fn pvebackup_co_prepare(void *opaque)
      qemu_coroutine_yield();
  
      if (local_err) {
@@ -488,7 +489,7 @@ index bd2647e5f3..dec9c0d188 100644
          goto err;
      }
  
-@@ -936,7 +903,7 @@ static void coroutine_fn pvebackup_co_prepare(void *opaque)
+@@ -938,7 +905,7 @@ static void coroutine_fn pvebackup_co_prepare(void *opaque)
      /* start the first job in the transaction */
      job_txn_start_seq(backup_state.txn);
  
@@ -497,7 +498,7 @@ index bd2647e5f3..dec9c0d188 100644
  
  err_mutex:
      qemu_mutex_unlock(&backup_state.stat.lock);
-@@ -967,7 +934,7 @@ err:
+@@ -969,7 +936,7 @@ err:
      if (vmaw) {
          Error *err = NULL;
          vma_writer_close(vmaw, &err);
@@ -506,7 +507,7 @@ index bd2647e5f3..dec9c0d188 100644
      }
  
      if (pbs) {
-@@ -978,65 +945,8 @@ err:
+@@ -980,65 +947,8 @@ err:
          rmdir(backup_dir);
      }
  
@@ -574,10 +575,10 @@ index bd2647e5f3..dec9c0d188 100644
  
  BackupStatus *qmp_query_backup(Error **errp)
 diff --git a/qapi/block-core.json b/qapi/block-core.json
-index 30eb1262ff..6ff5367383 100644
+index c99ddf8628..829dc7b8e9 100644
 --- a/qapi/block-core.json
 +++ b/qapi/block-core.json
-@@ -847,7 +847,7 @@
+@@ -846,7 +846,7 @@
                                      '*config-file': 'str',
                                      '*firewall-file': 'str',
                                      '*devlist': 'str', '*speed': 'int' },
@@ -586,7 +587,7 @@ index 30eb1262ff..6ff5367383 100644
  
  ##
  # @query-backup:
-@@ -869,7 +869,7 @@
+@@ -868,7 +868,7 @@
  # Notes: This command succeeds even if there is no backup process running.
  #
  ##

debian/patches/pve/0043-PBS-add-master-key-support.patch

@@ -11,6 +11,7 @@ from the PVE side to avoid QMP calls with unsupported parameters.
 
 Signed-off-by: Fabian Grünbichler <f.gruenbichler@proxmox.com>
 Signed-off-by: Stefan Reiter <s.reiter@proxmox.com>
+Signed-off-by: Thomas Lamprecht <t.lamprecht@proxmox.com>
 ---
  block/monitor/block-hmp-cmds.c | 1 +
  pve-backup.c                   | 3 +++
@@ -18,10 +19,10 @@ Signed-off-by: Stefan Reiter <s.reiter@proxmox.com>
  3 files changed, 11 insertions(+)
 
 diff --git a/block/monitor/block-hmp-cmds.c b/block/monitor/block-hmp-cmds.c
-index 11c84d5508..0932deb28c 100644
+index c9849a5b29..52ddbf95ad 100644
 --- a/block/monitor/block-hmp-cmds.c
 +++ b/block/monitor/block-hmp-cmds.c
-@@ -1036,6 +1036,7 @@ void coroutine_fn hmp_backup(Monitor *mon, const QDict *qdict)
+@@ -1039,6 +1039,7 @@ void coroutine_fn hmp_backup(Monitor *mon, const QDict *qdict)
          false, NULL, // PBS password
          false, NULL, // PBS keyfile
          false, NULL, // PBS key_password
@@ -30,10 +31,10 @@ index 11c84d5508..0932deb28c 100644
          false, NULL, // PBS backup-id
          false, 0, // PBS backup-time
 diff --git a/pve-backup.c b/pve-backup.c
-index dec9c0d188..076146cc1e 100644
+index 323014744c..9f6c04a512 100644
 --- a/pve-backup.c
 +++ b/pve-backup.c
-@@ -531,6 +531,7 @@ UuidInfo coroutine_fn *qmp_backup(
+@@ -533,6 +533,7 @@ UuidInfo coroutine_fn *qmp_backup(
      bool has_password, const char *password,
      bool has_keyfile, const char *keyfile,
      bool has_key_password, const char *key_password,
@@ -41,7 +42,7 @@ index dec9c0d188..076146cc1e 100644
      bool has_fingerprint, const char *fingerprint,
      bool has_backup_id, const char *backup_id,
      bool has_backup_time, int64_t backup_time,
-@@ -679,6 +680,7 @@ UuidInfo coroutine_fn *qmp_backup(
+@@ -681,6 +682,7 @@ UuidInfo coroutine_fn *qmp_backup(
              has_password ? password : NULL,
              has_keyfile ? keyfile : NULL,
              has_key_password ? key_password : NULL,
@@ -49,7 +50,7 @@ index dec9c0d188..076146cc1e 100644
              has_compress ? compress : true,
              has_encrypt ? encrypt : has_keyfile,
              has_fingerprint ? fingerprint : NULL,
-@@ -1042,5 +1044,6 @@ ProxmoxSupportStatus *qmp_query_proxmox_support(Error **errp)
+@@ -1044,5 +1046,6 @@ ProxmoxSupportStatus *qmp_query_proxmox_support(Error **errp)
      ret->pbs_dirty_bitmap_savevm = true;
      ret->pbs_dirty_bitmap_migration = true;
      ret->query_bitmap_info = true;
@@ -57,10 +58,10 @@ index dec9c0d188..076146cc1e 100644
      return ret;
  }
 diff --git a/qapi/block-core.json b/qapi/block-core.json
-index 6ff5367383..bef9b65fec 100644
+index 829dc7b8e9..d089328a1f 100644
 --- a/qapi/block-core.json
 +++ b/qapi/block-core.json
-@@ -818,6 +818,8 @@
+@@ -817,6 +817,8 @@
  #
  # @key-password: password for keyfile (optional for format 'pbs')
  #
@@ -69,7 +70,7 @@ index 6ff5367383..bef9b65fec 100644
  # @fingerprint: server cert fingerprint (optional for format 'pbs')
  #
  # @backup-id: backup ID (required for format 'pbs')
-@@ -837,6 +839,7 @@
+@@ -836,6 +838,7 @@
                                      '*password': 'str',
                                      '*keyfile': 'str',
                                      '*key-password': 'str',
@@ -77,7 +78,7 @@ index 6ff5367383..bef9b65fec 100644
                                      '*fingerprint': 'str',
                                      '*backup-id': 'str',
                                      '*backup-time': 'int',
-@@ -889,6 +892,9 @@
+@@ -888,6 +891,9 @@
  #                              migration cap if this is false/unset may lead
  #                              to crashes on migration!
  #
@@ -87,7 +88,7 @@ index 6ff5367383..bef9b65fec 100644
  # @pbs-library-version: Running version of libproxmox-backup-qemu0 library.
  #
  ##
-@@ -897,6 +903,7 @@
+@@ -896,6 +902,7 @@
              'query-bitmap-info': 'bool',
              'pbs-dirty-bitmap-savevm': 'bool',
              'pbs-dirty-bitmap-migration': 'bool',

debian/patches/pve/0044-PVE-block-pbs-fast-path-reads-without-allocation-if-.patch

@@ -11,12 +11,13 @@ Tracing shows the fast-path is taken almost all the time, though not
 100% so the slow one is still necessary.
 
 Signed-off-by: Stefan Reiter <s.reiter@proxmox.com>
+Signed-off-by: Thomas Lamprecht <t.lamprecht@proxmox.com>
 ---
  block/pbs.c | 17 ++++++++++++++---
  1 file changed, 14 insertions(+), 3 deletions(-)
 
 diff --git a/block/pbs.c b/block/pbs.c
-index 1481a2bfd1..fbf0d8d845 100644
+index 0b05ea9080..c5eb4d5bad 100644
 --- a/block/pbs.c
 +++ b/block/pbs.c
 @@ -200,7 +200,16 @@ static coroutine_fn int pbs_co_preadv(BlockDriverState *bs,
@@ -35,9 +36,9 @@ index 1481a2bfd1..fbf0d8d845 100644
 +        buf = g_malloc(bytes);
 +    }
  
-     ReadCallbackData rcb = {
-         .co = qemu_coroutine_self(),
-@@ -218,8 +227,10 @@ static coroutine_fn int pbs_co_preadv(BlockDriverState *bs,
+     if (offset < 0 || bytes < 0) {
+         fprintf(stderr, "unexpected negative 'offset' or 'bytes' value!\n");
+@@ -223,8 +232,10 @@ static coroutine_fn int pbs_co_preadv(BlockDriverState *bs,
          return -EIO;
      }
  

debian/patches/pve/0045-PVE-block-stream-increase-chunk-size.patch

@@ -4,15 +4,17 @@ 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 236384f2f7..a5371420e3 100644
+index e45113aed6..c3c0c5febe 100644
 --- a/block/stream.c
 +++ b/block/stream.c
-@@ -26,7 +26,7 @@ enum {
+@@ -28,7 +28,7 @@ enum {
       * large enough to process multiple clusters in a single call, so
       * that populating contiguous regions of the image is efficient.
       */

debian/patches/pve/0046-block-io-accept-NULL-qiov-in-bdrv_pad_request.patch

@@ -10,33 +10,24 @@ it wants to extend its passed vector.
 
 Simply check for NULL and do nothing, there's no reason to pad the
 target if it will be discarded anyway.
+
+Signed-off-by: Thomas Lamprecht <t.lamprecht@proxmox.com>
 ---
- block/io.c | 13 ++++++++-----
- 1 file changed, 8 insertions(+), 5 deletions(-)
+ block/io.c | 4 ++++
+ 1 file changed, 4 insertions(+)
 
 diff --git a/block/io.c b/block/io.c
-index ec5e152bb7..08dee005ec 100644
+index 4e4cb556c5..04061f1e68 100644
 --- a/block/io.c
 +++ b/block/io.c
-@@ -1613,13 +1613,16 @@ static bool bdrv_pad_request(BlockDriverState *bs,
-         return false;
-     }
+@@ -1765,6 +1765,10 @@ static int bdrv_pad_request(BlockDriverState *bs,
+ {
+     int ret;
  
--    qemu_iovec_init_extended(&pad->local_qiov, pad->buf, pad->head,
--                             *qiov, *qiov_offset, *bytes,
--                             pad->buf + pad->buf_len - pad->tail, pad->tail);
-+    if (*qiov) {
-+        qemu_iovec_init_extended(&pad->local_qiov, pad->buf, pad->head,
-+                                *qiov, *qiov_offset, *bytes,
-+                                pad->buf + pad->buf_len - pad->tail, pad->tail);
-+        *qiov = &pad->local_qiov;
-+        *qiov_offset = 0;
++    if (!qiov) {
++        return 0;
 +    }
 +
-     *bytes += pad->head + pad->tail;
-     *offset -= pad->head;
--    *qiov = &pad->local_qiov;
--    *qiov_offset = 0;
+     bdrv_check_qiov_request(*offset, *bytes, *qiov, *qiov_offset, &error_abort);
  
-     return true;
- }
+     if (!bdrv_init_padding(bs, *offset, *bytes, pad)) {

debian/patches/pve/0047-block-add-alloc-track-driver.patch

@@ -23,18 +23,21 @@ If 'auto-remove' is set, alloc-track will automatically detach itself
 once the backing image is removed. It will be replaced by 'file'.
 
 Signed-off-by: Stefan Reiter <s.reiter@proxmox.com>
+Signed-off-by: Thomas Lamprecht <t.lamprecht@proxmox.com>
+[adapt to changed function signatures]
+Signed-off-by: Fabian Ebner <f.ebner@proxmox.com>
 ---
- block/alloc-track.c | 342 ++++++++++++++++++++++++++++++++++++++++++++
+ block/alloc-track.c | 350 ++++++++++++++++++++++++++++++++++++++++++++
  block/meson.build   |   1 +
- 2 files changed, 343 insertions(+)
+ 2 files changed, 351 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..b579380279
+index 0000000000..6b50fbe537
 --- /dev/null
 +++ b/block/alloc-track.c
-@@ -0,0 +1,345 @@
+@@ -0,0 +1,350 @@
 +/*
 + * 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
@@ -165,7 +168,7 @@ index 0000000000..b579380279
 +}
 +
 +static int coroutine_fn track_co_preadv(BlockDriverState *bs,
-+    uint64_t offset, uint64_t bytes, QEMUIOVector *qiov, int flags)
++    int64_t offset, int64_t bytes, QEMUIOVector *qiov, BdrvRequestFlags flags)
 +{
 +    BDRVAllocTrackState *s = bs->opaque;
 +    QEMUIOVector local_qiov;
@@ -176,6 +179,11 @@ index 0000000000..b579380279
 +    int64_t local_bytes;
 +    bool alloc;
 +
++    if (offset < 0 || bytes < 0) {
++        fprintf(stderr, "unexpected negative 'offset' or 'bytes' value!\n");
++        return -EINVAL;
++    }
++
 +    /* 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
@@ -218,21 +226,21 @@ index 0000000000..b579380279
 +}
 +
 +static int coroutine_fn track_co_pwritev(BlockDriverState *bs,
-+    uint64_t offset, uint64_t bytes, QEMUIOVector *qiov, int flags)
++    int64_t offset, int64_t bytes, QEMUIOVector *qiov, BdrvRequestFlags flags)
 +{
 +    return bdrv_co_pwritev(bs->file, offset, bytes, qiov, flags);
 +}
 +
 +static int coroutine_fn track_co_pwrite_zeroes(BlockDriverState *bs,
-+    int64_t offset, int count, BdrvRequestFlags flags)
++    int64_t offset, int64_t bytes, BdrvRequestFlags flags)
 +{
-+    return bdrv_co_pwrite_zeroes(bs->file, offset, count, flags);
++    return bdrv_co_pwrite_zeroes(bs->file, offset, bytes, flags);
 +}
 +
 +static int coroutine_fn track_co_pdiscard(BlockDriverState *bs,
-+    int64_t offset, int count)
++    int64_t offset, int64_t bytes)
 +{
-+    return bdrv_co_pdiscard(bs->file, offset, count);
++    return bdrv_co_pdiscard(bs->file, offset, bytes);
 +}
 +
 +static coroutine_fn int track_co_flush(BlockDriverState *bs)
@@ -381,7 +389,7 @@ index 0000000000..b579380279
 +
 +block_init(bdrv_alloc_track_init);
 diff --git a/block/meson.build b/block/meson.build
-index a070060e53..e387990764 100644
+index 8c758c0218..45b72e10f1 100644
 --- a/block/meson.build
 +++ b/block/meson.build
 @@ -2,6 +2,7 @@ block_ss.add(genh)

debian/patches/pve/0048-PVE-whitelist-invalid-QAPI-names-for-backwards-compa.patch

@@ -0,0 +1,33 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Stefan Reiter <s.reiter@proxmox.com>
+Date: Wed, 26 May 2021 15:26:30 +0200
+Subject: [PATCH] PVE: whitelist 'invalid' QAPI names for backwards compat
+
+Signed-off-by: Stefan Reiter <s.reiter@proxmox.com>
+Signed-off-by: Thomas Lamprecht <t.lamprecht@proxmox.com>
+---
+ qapi/pragma.json | 5 ++++-
+ 1 file changed, 4 insertions(+), 1 deletion(-)
+
+diff --git a/qapi/pragma.json b/qapi/pragma.json
+index 7c91ea3685..c3888d654c 100644
+--- a/qapi/pragma.json
++++ b/qapi/pragma.json
+@@ -12,6 +12,7 @@
+         'device_add',
+         'device_del',
+         'expire_password',
++        'get_link_status',
+         'migrate_cancel',
+         'netdev_add',
+         'netdev_del',
+@@ -60,6 +61,8 @@
+         'SysEmuTarget',             # query-cpu-fast, query-target
+         'UuidInfo',                 # query-uuid
+         'VncClientInfo',            # query-vnc, query-vnc-servers, ...
+-        'X86CPURegister32'          # qom-get of x86 CPU properties
++        'X86CPURegister32',         # qom-get of x86 CPU properties
+                                     # feature-words, filtered-features
++        'BlockdevOptionsPbs',       # for PBS backwards compat
++        'BalloonInfo'
+     ] } }

debian/patches/pve/0049-PVE-savevm-async-register-yank-before-migration_inco.patch

@@ -0,0 +1,35 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Stefan Reiter <s.reiter@proxmox.com>
+Date: Wed, 26 May 2021 17:36:55 +0200
+Subject: [PATCH] PVE: savevm-async: register yank before
+ migration_incoming_state_destroy
+
+Signed-off-by: Stefan Reiter <s.reiter@proxmox.com>
+Signed-off-by: Thomas Lamprecht <t.lamprecht@proxmox.com>
+---
+ migration/savevm-async.c | 5 +++++
+ 1 file changed, 5 insertions(+)
+
+diff --git a/migration/savevm-async.c b/migration/savevm-async.c
+index 970ee3b3fc..b3ccc069f1 100644
+--- a/migration/savevm-async.c
++++ b/migration/savevm-async.c
+@@ -19,6 +19,7 @@
+ #include "qemu/timer.h"
+ #include "qemu/main-loop.h"
+ #include "qemu/rcu.h"
++#include "qemu/yank.h"
+ 
+ /* #define DEBUG_SAVEVM_STATE */
+ 
+@@ -580,6 +581,10 @@ int load_snapshot_from_blockdev(const char *filename, Error **errp)
+     dirty_bitmap_mig_before_vm_start();
+ 
+     qemu_fclose(f);
++
++    /* state_destroy assumes a real migration which would have added a yank */
++    yank_register_instance(MIGRATION_YANK_INSTANCE, &error_abort);
++
+     migration_incoming_state_destroy();
+     if (ret < 0) {
+         error_setg_errno(errp, -ret, "Error while loading VM state");

debian/patches/pve/0050-qemu-img-dd-add-l-option-for-loading-a-snapshot.patch

@@ -0,0 +1,130 @@
+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: Fabian 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 a49badb158..1039aec01c 100644
+--- a/docs/tools/qemu-img.rst
++++ b/docs/tools/qemu-img.rst
+@@ -492,10 +492,10 @@ 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 f3b2b1b4de..e77ed9347f 100644
+--- a/qemu-img-cmds.hx
++++ b/qemu-img-cmds.hx
+@@ -58,9 +58,9 @@ 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 015d6d2ce4..7031195e32 100644
+--- a/qemu-img.c
++++ b/qemu-img.c
+@@ -4922,6 +4922,7 @@ 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;
+@@ -4931,6 +4932,7 @@ static int img_dd(int argc, char **argv)
+     int64_t size = 0, readsize = 0;
+     int64_t block_count = 0, out_pos, in_pos;
+     bool force_share = false, skip_create = false;
++    const char *snapshot_name = NULL;
+     struct DdInfo dd = {
+         .flags = 0,
+         .count = 0,
+@@ -4968,7 +4970,7 @@ 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;
+         }
+@@ -4991,6 +4993,19 @@ 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;
+@@ -5050,11 +5065,24 @@ 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) {
+@@ -5203,6 +5231,7 @@ 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);

debian/patches/pve/0051-vma-allow-partial-restore.patch

@@ -0,0 +1,407 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Fabian Ebner <f.ebner@proxmox.com>
+Date: Thu, 21 Apr 2022 13:26:48 +0200
+Subject: [PATCH] vma: allow partial restore
+
+Introduce a new map line for skipping a certain drive, 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.
+
+For the reader, a new skip flag for VmaRestoreState is added and the
+target is allowed to be NULL if skip is specified when registering. If
+the skip flag is set, no writes will be made as well as no check for
+duplicate clusters. Therefore, the flag is not set for verify.
+
+Signed-off-by: Fabian Ebner <f.ebner@proxmox.com>
+Acked-by: Wolfgang Bumiller <w.bumiller@proxmox.com>
+Signed-off-by: Thomas Lamprecht <t.lamprecht@proxmox.com>
+---
+ vma-reader.c |  64 ++++++++++++---------
+ vma.c        | 157 +++++++++++++++++++++++++++++----------------------
+ vma.h        |   2 +-
+ 3 files changed, 126 insertions(+), 97 deletions(-)
+
+diff --git a/vma-reader.c b/vma-reader.c
+index 4f4ee2b47b..844d95a5ba 100644
+--- a/vma-reader.c
++++ b/vma-reader.c
+@@ -29,6 +29,7 @@ typedef struct VmaRestoreState {
+     bool write_zeroes;
+     unsigned long *bitmap;
+     int bitmap_size;
++    bool skip;
+ }  VmaRestoreState;
+ 
+ struct VmaReader {
+@@ -426,13 +427,14 @@ VmaDeviceInfo *vma_reader_get_device_info(VmaReader *vmar, guint8 dev_id)
+ }
+ 
+ static void allocate_rstate(VmaReader *vmar,  guint8 dev_id,
+-                            BlockBackend *target, bool write_zeroes)
++                            BlockBackend *target, bool write_zeroes, bool skip)
+ {
+     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;
+ 
+@@ -447,28 +449,30 @@ static void allocate_rstate(VmaReader *vmar,  guint8 dev_id,
+ }
+ 
+ int vma_reader_register_bs(VmaReader *vmar, guint8 dev_id, BlockBackend *target,
+-                           bool write_zeroes, Error **errp)
++                           bool write_zeroes, bool skip, Error **errp)
+ {
+     assert(vmar);
+-    assert(target != NULL);
++    assert(target != NULL || skip);
+     assert(dev_id);
+-    assert(vmar->rstate[dev_id].target == NULL);
+-
+-    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;
++    assert(vmar->rstate[dev_id].target == NULL && !vmar->rstate[dev_id].skip);
++
++    if (target != NULL) {
++        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;
++        }
+     }
+ 
+-    allocate_rstate(vmar, dev_id, target, write_zeroes);
++    allocate_rstate(vmar, dev_id, target, write_zeroes, skip);
+ 
+     return 0;
+ }
+@@ -561,19 +565,23 @@ static int restore_extent(VmaReader *vmar, unsigned char *buf,
+         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) {
++            if (!verify && !target && !skip) {
+                 error_setg(errp, "got wrong dev id %d", dev_id);
+                 return -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;
++            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);
+             }
+-            vma_reader_set_bitmap(rstate, cluster_num, 1);
+ 
+             max_sector = vmar->devinfo[dev_id].size/BDRV_SECTOR_SIZE;
+         } else {
+@@ -619,7 +627,7 @@ static int restore_extent(VmaReader *vmar, unsigned char *buf,
+                 return -1;
+             }
+ 
+-            if (!verify) {
++            if (!verify && !skip) {
+                 int nb_sectors = end_sector - sector_num;
+                 if (restore_write_data(vmar, dev_id, target, vmstate_fd,
+                                        buf + start, sector_num, nb_sectors,
+@@ -655,7 +663,7 @@ static int restore_extent(VmaReader *vmar, unsigned char *buf,
+                         return -1;
+                     }
+ 
+-                    if (!verify) {
++                    if (!verify && !skip) {
+                         int nb_sectors = end_sector - sector_num;
+                         if (restore_write_data(vmar, dev_id, target, vmstate_fd,
+                                                buf + start, sector_num,
+@@ -680,7 +688,7 @@ static int restore_extent(VmaReader *vmar, unsigned char *buf,
+                             vmar->partial_zero_cluster_data += zero_size;
+                         }
+ 
+-                        if (rstate->write_zeroes && !verify) {
++                        if (rstate->write_zeroes && !verify && !skip) {
+                             if (restore_write_data(vmar, dev_id, target, vmstate_fd,
+                                                    zero_vma_block, sector_num,
+                                                    nb_sectors, errp) < 0) {
+@@ -851,7 +859,7 @@ int vma_reader_verify(VmaReader *vmar, bool verbose, Error **errp)
+ 
+     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);
++            allocate_rstate(vmar, dev_id, NULL, false, false);
+         }
+     }
+ 
+diff --git a/vma.c b/vma.c
+index 89440733b1..21e765a469 100644
+--- a/vma.c
++++ b/vma.c
+@@ -138,6 +138,7 @@ typedef struct RestoreMap {
+     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) {
+@@ -245,47 +246,61 @@ static int extract_content(int argc, char **argv)
+             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';
+-                if (len == 1) {
++                len = len - 1;
++                if (len == 0) {
+                     break;
+                 }
+             }
+ 
+-            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 (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;
++                }
++            } 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;
++                    }
+                 }
+-            }
+ 
+-            uint64_t bps_value = 0;
+-            if (bps) {
+-                bps_value = verify_u64(bps);
+-                g_free(bps);
+-            }
++                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);
++                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);
+             }
+ 
+-            char *devname = NULL;
+-            path = extract_devname(path, &devname, -1);
+             if (!devname) {
+                 g_error("read map failed - no dev name specified ('%s')",
+                         inbuf);
+@@ -299,6 +314,7 @@ static int extract_content(int argc, char **argv)
+             map->throttling_group = group;
+             map->cache = cache;
+             map->write_zero = write_zero;
++            map->skip = skip;
+ 
+             g_hash_table_insert(devmap, map->devname, map);
+ 
+@@ -328,6 +344,7 @@ static int extract_content(int argc, char **argv)
+             const char *cache = NULL;
+             int flags = BDRV_O_RDWR;
+             bool write_zero = true;
++            bool skip = false;
+ 
+             BlockBackend *blk = NULL;
+ 
+@@ -343,6 +360,7 @@ static int extract_content(int argc, char **argv)
+                 throttling_group = map->throttling_group;
+                 cache = map->cache;
+                 write_zero = map->write_zero;
++                skip = map->skip;
+             } else {
+                 devfn = g_strdup_printf("%s/tmp-disk-%s.raw",
+                                         dirname, di->devname);
+@@ -361,57 +379,60 @@ static int extract_content(int argc, char **argv)
+                 write_zero = false;
+             }
+ 
+-	    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 (!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 (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 && bdrv_parse_cache_mode(cache, &flags, &writethrough)) {
++                    g_error("invalid cache option: %s\n", cache);
++                }
+ 
+-            if (cache) {
+-                blk_set_enable_write_cache(blk, !writethrough);
+-            }
++                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 (throttling_group) {
+-                blk_io_limits_enable(blk, throttling_group);
+-            }
++                if (cache) {
++                    blk_set_enable_write_cache(blk, !writethrough);
++                }
+ 
+-            if (throttling_bps) {
+-                if (!throttling_group) {
+-                    blk_io_limits_enable(blk, devfn);
++                if (throttling_group) {
++                    blk_io_limits_enable(blk, throttling_group);
+                 }
+ 
+-                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");
++                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);
+                 }
+-                blk_set_io_limits(blk, &cfg);
+             }
+ 
+-            if (vma_reader_register_bs(vmar, i, blk, write_zero, &errp) < 0) {
++            if (vma_reader_register_bs(vmar, i, blk, write_zero, skip, &errp) < 0) {
+                 g_error("%s", error_get_pretty(errp));
+             }
+ 
+diff --git a/vma.h b/vma.h
+index c895c97f6d..1b62859165 100644
+--- a/vma.h
++++ b/vma.h
+@@ -142,7 +142,7 @@ GList *vma_reader_get_config_data(VmaReader *vmar);
+ 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,
+-                           Error **errp);
++                           bool skip, 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);

debian/patches/pve/0052-pbs-namespace-support.patch

@@ -0,0 +1,233 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Wolfgang Bumiller <w.bumiller@proxmox.com>
+Date: Tue, 26 Apr 2022 16:06:28 +0200
+Subject: [PATCH] pbs: namespace support
+
+Signed-off-by: Wolfgang Bumiller <w.bumiller@proxmox.com>
+---
+ block/monitor/block-hmp-cmds.c |  1 +
+ block/pbs.c                    | 25 +++++++++++++++++++++----
+ pbs-restore.c                  | 19 ++++++++++++++++---
+ pve-backup.c                   |  6 +++++-
+ qapi/block-core.json           |  5 ++++-
+ 5 files changed, 47 insertions(+), 9 deletions(-)
+
+diff --git a/block/monitor/block-hmp-cmds.c b/block/monitor/block-hmp-cmds.c
+index 52ddbf95ad..69c868887a 100644
+--- a/block/monitor/block-hmp-cmds.c
++++ b/block/monitor/block-hmp-cmds.c
+@@ -1041,6 +1041,7 @@ void coroutine_fn hmp_backup(Monitor *mon, const QDict *qdict)
+         false, NULL, // PBS key_password
+         false, NULL, // PBS master_keyfile
+         false, NULL, // PBS fingerprint
++        false, NULL, // PBS backup-ns
+         false, NULL, // PBS backup-id
+         false, 0, // PBS backup-time
+         false, false, // PBS use-dirty-bitmap
+diff --git a/block/pbs.c b/block/pbs.c
+index c5eb4d5bad..7471e2ef9d 100644
+--- a/block/pbs.c
++++ b/block/pbs.c
+@@ -14,6 +14,7 @@
+ #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"
+@@ -27,6 +28,7 @@ typedef struct {
+     int64_t length;
+ 
+     char *repository;
++    char *namespace;
+     char *snapshot;
+     char *archive;
+ } BDRVPBSState;
+@@ -40,6 +42,11 @@ static QemuOptsList runtime_opts = {
+             .type = QEMU_OPT_STRING,
+             .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,
+@@ -76,7 +83,7 @@ static QemuOptsList runtime_opts = {
+ 
+ 
+ // filename format:
+-// pbs:repository=<repo>,snapshot=<snap>,password=<pw>,key_password=<kpw>,fingerprint=<fp>,archive=<archive>
++// pbs:repository=<repo>,namespace=<ns>,snapshot=<snap>,password=<pw>,key_password=<kpw>,fingerprint=<fp>,archive=<archive>
+ static void pbs_parse_filename(const char *filename, QDict *options,
+                                      Error **errp)
+ {
+@@ -112,6 +119,7 @@ static int pbs_open(BlockDriverState *bs, QDict *options, int flags,
+     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);
+ 
+@@ -124,9 +132,12 @@ static int pbs_open(BlockDriverState *bs, QDict *options, int flags,
+     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(s->repository, s->snapshot, password,
++    s->conn = proxmox_restore_new_ns(s->repository, s->snapshot, s->namespace, password,
+         keyfile, key_password, fingerprint, &pbs_error);
+ 
+     /* invalidates qemu_opt_get char pointers from above */
+@@ -171,6 +182,7 @@ static int pbs_file_open(BlockDriverState *bs, QDict *options, int flags,
+ 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);
+@@ -252,8 +264,13 @@ static coroutine_fn int pbs_co_pwritev(BlockDriverState *bs,
+ static void pbs_refresh_filename(BlockDriverState *bs)
+ {
+     BDRVPBSState *s = bs->opaque;
+-    snprintf(bs->exact_filename, sizeof(bs->exact_filename), "%s/%s(%s)",
+-             s->repository, s->snapshot, s->archive);
++    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);
++    }
+ }
+ 
+ static const char *const pbs_strong_runtime_opts[] = {
+diff --git a/pbs-restore.c b/pbs-restore.c
+index 4d3f925a1b..62042bdd93 100644
+--- a/pbs-restore.c
++++ b/pbs-restore.c
+@@ -30,7 +30,7 @@
+ static void help(void)
+ {
+     const char *help_msg =
+-        "usage: pbs-restore [--repository <repo>] snapshot archive-name target [command options]\n"
++        "usage: pbs-restore [--repository <repo>] [--ns namespace] snapshot archive-name target [command options]\n"
+         ;
+ 
+     printf("%s", help_msg);
+@@ -78,6 +78,7 @@ int main(int argc, char **argv)
+     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;
+@@ -91,6 +92,7 @@ int main(int argc, char **argv)
+             {"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}
+         };
+@@ -111,6 +113,9 @@ int main(int argc, char **argv)
+             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;
+@@ -161,8 +166,16 @@ int main(int argc, char **argv)
+         fprintf(stderr, "connecting to repository '%s'\n", repository);
+     }
+     char *pbs_error = NULL;
+-    ProxmoxRestoreHandle *conn = proxmox_restore_new(
+-        repository, snapshot, password, keyfile, key_password, fingerprint, &pbs_error);
++    ProxmoxRestoreHandle *conn = proxmox_restore_new_ns(
++        repository,
++        snapshot,
++        backup_ns,
++        password,
++        keyfile,
++        key_password,
++        fingerprint,
++        &pbs_error
++    );
+     if (conn == NULL) {
+         fprintf(stderr, "restore failed: %s\n", pbs_error);
+         return -1;
+diff --git a/pve-backup.c b/pve-backup.c
+index 9f6c04a512..f6a5f8c785 100644
+--- a/pve-backup.c
++++ b/pve-backup.c
+@@ -10,6 +10,8 @@
+ #include "qapi/qmp/qerror.h"
+ #include "qemu/cutils.h"
+ 
++#include <proxmox-backup-qemu.h>
++
+ /* PVE backup state and related function */
+ 
+ /*
+@@ -535,6 +537,7 @@ UuidInfo coroutine_fn *qmp_backup(
+     bool has_key_password, const char *key_password,
+     bool has_master_keyfile, const char *master_keyfile,
+     bool has_fingerprint, const char *fingerprint,
++    bool has_backup_ns, const char *backup_ns,
+     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,
+@@ -674,8 +677,9 @@ UuidInfo coroutine_fn *qmp_backup(
+         firewall_name = "fw.conf";
+ 
+         char *pbs_err = NULL;
+-        pbs = proxmox_backup_new(
++        pbs = proxmox_backup_new_ns(
+             backup_file,
++            has_backup_ns ? backup_ns : NULL,
+             backup_id,
+             backup_time,
+             dump_cb_block_size,
+diff --git a/qapi/block-core.json b/qapi/block-core.json
+index d089328a1f..705f0c97ba 100644
+--- a/qapi/block-core.json
++++ b/qapi/block-core.json
+@@ -821,6 +821,8 @@
+ #
+ # @fingerprint: server cert fingerprint (optional for format 'pbs')
+ #
++# @backup-ns: backup namespace (required for format 'pbs')
++#
+ # @backup-id: backup ID (required for format 'pbs')
+ #
+ # @backup-time: backup timestamp (Unix epoch, required for format 'pbs')
+@@ -840,6 +842,7 @@
+                                     '*key-password': 'str',
+                                     '*master-keyfile': 'str',
+                                     '*fingerprint': 'str',
++                                    '*backup-ns': 'str',
+                                     '*backup-id': 'str',
+                                     '*backup-time': 'int',
+                                     '*use-dirty-bitmap': 'bool',
+@@ -3236,7 +3239,7 @@
+ { 'struct': 'BlockdevOptionsPbs',
+   'data': { 'repository': 'str', 'snapshot': 'str', 'archive': 'str',
+             '*keyfile': 'str', '*password': 'str', '*fingerprint': 'str',
+-            '*key_password': 'str' } }
++            '*key_password': 'str', '*namespace': 'str' } }
+ 
+ ##
+ # @BlockdevOptionsNVMe:

debian/patches/pve/0053-Revert-block-rbd-implement-bdrv_co_block_status.patch

@@ -0,0 +1,161 @@
+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>
+---
+ block/rbd.c | 112 ----------------------------------------------------
+ 1 file changed, 112 deletions(-)
+
+diff --git a/block/rbd.c b/block/rbd.c
+index a4b8fb482c..3393b06a4e 100644
+--- a/block/rbd.c
++++ b/block/rbd.c
+@@ -97,12 +97,6 @@ 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,
+@@ -1267,111 +1261,6 @@ 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 qemu_rbd_getlength(BlockDriverState *bs)
+ {
+     BDRVRBDState *s = bs->opaque;
+@@ -1607,7 +1496,6 @@ 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,

debian/patches/pve/0054-PVE-Backup-create-jobs-correctly-cancel-in-error-sce.patch

@@ -0,0 +1,59 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Fabian Ebner <f.ebner@proxmox.com>
+Date: Wed, 25 May 2022 13:59:37 +0200
+Subject: [PATCH] PVE-Backup: create jobs: correctly cancel in error scenario
+
+The first call to job_cancel_sync() will cancel and free all jobs in
+the transaction, so ensure that it's called only once and get rid of
+the job_unref() that would operate on freed memory.
+
+It's also necessary to NULL backup_state.pbs in the error scenario,
+because a subsequent backup_cancel QMP call (as happens in PVE when
+the backup QMP command fails) would try to call proxmox_backup_abort()
+and run into a segfault.
+
+Signed-off-by: Fabian Ebner <f.ebner@proxmox.com>
+Signed-off-by: Wolfgang Bumiller <w.bumiller@proxmox.com>
+---
+ pve-backup.c | 10 ++++++++--
+ 1 file changed, 8 insertions(+), 2 deletions(-)
+
+diff --git a/pve-backup.c b/pve-backup.c
+index f6a5f8c785..5bed6f4014 100644
+--- a/pve-backup.c
++++ b/pve-backup.c
+@@ -506,6 +506,11 @@ static void create_backup_jobs_bh(void *opaque) {
+     }
+ 
+     if (*errp) {
++        /*
++         * It's enough to cancel one job in the transaction, the rest will
++         * follow automatically.
++         */
++        bool canceled = false;
+         l = backup_state.di_list;
+         while (l) {
+             PVEBackupDevInfo *di = (PVEBackupDevInfo *)l->data;
+@@ -516,12 +521,12 @@ static void create_backup_jobs_bh(void *opaque) {
+                 di->target = NULL;
+             }
+ 
+-            if (di->job) {
++            if (!canceled && di->job) {
+                 AioContext *ctx = di->job->job.aio_context;
+                 aio_context_acquire(ctx);
+                 job_cancel_sync(&di->job->job, true);
+-                job_unref(&di->job->job);
+                 aio_context_release(ctx);
++                canceled = true;
+             }
+         }
+     }
+@@ -947,6 +952,7 @@ err:
+ 
+     if (pbs) {
+         proxmox_backup_disconnect(pbs);
++        backup_state.pbs = NULL;
+     }
+ 
+     if (backup_dir) {

debian/patches/pve/0055-PVE-Backup-ensure-jobs-in-di_list-are-referenced.patch

@@ -0,0 +1,76 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Fabian Ebner <f.ebner@proxmox.com>
+Date: Wed, 25 May 2022 13:59:38 +0200
+Subject: [PATCH] PVE-Backup: ensure jobs in di_list are referenced
+
+Ensures that qmp_backup_cancel doesn't pick a job that's already been
+freed. With unlucky timings it seems possible that:
+1. job_exit -> job_completed -> job_finalize_single starts
+2. pvebackup_co_complete_stream gets spawned in completion callback
+3. job finalize_single finishes -> job's refcount hits zero -> job is
+   freed
+4. qmp_backup_cancel comes in and locks backup_state.backup_mutex
+   before pvebackup_co_complete_stream can remove the job from the
+   di_list
+5. qmp_backup_cancel will pick a job that's already been freed
+
+Signed-off-by: Fabian Ebner <f.ebner@proxmox.com>
+Signed-off-by: Wolfgang Bumiller <w.bumiller@proxmox.com>
+---
+ pve-backup.c | 25 ++++++++++++++++++++-----
+ 1 file changed, 20 insertions(+), 5 deletions(-)
+
+diff --git a/pve-backup.c b/pve-backup.c
+index 5bed6f4014..0c34428713 100644
+--- a/pve-backup.c
++++ b/pve-backup.c
+@@ -316,6 +316,14 @@ static void coroutine_fn pvebackup_co_complete_stream(void *opaque)
+         }
+     }
+ 
++    if (di->job) {
++        AioContext *ctx = di->job->job.aio_context;
++        aio_context_acquire(ctx);
++        job_unref(&di->job->job);
++        di->job = NULL;
++        aio_context_release(ctx);
++    }
++
+     // remove self from job list
+     backup_state.di_list = g_list_remove(backup_state.di_list, di);
+ 
+@@ -491,9 +499,12 @@ static void create_backup_jobs_bh(void *opaque) {
+             bitmap_mode, false, NULL, &perf, BLOCKDEV_ON_ERROR_REPORT, BLOCKDEV_ON_ERROR_REPORT,
+             JOB_DEFAULT, pvebackup_complete_cb, di, backup_state.txn, &local_err);
+ 
+-        aio_context_release(aio_context);
+-
+         di->job = job;
++        if (job) {
++            job_ref(&job->job);
++        }
++
++        aio_context_release(aio_context);
+ 
+         if (!job || local_err) {
+             error_setg(errp, "backup_job_create failed: %s",
+@@ -521,12 +532,16 @@ static void create_backup_jobs_bh(void *opaque) {
+                 di->target = NULL;
+             }
+ 
+-            if (!canceled && di->job) {
++            if (di->job) {
+                 AioContext *ctx = di->job->job.aio_context;
+                 aio_context_acquire(ctx);
+-                job_cancel_sync(&di->job->job, true);
++                if (!canceled) {
++                    job_cancel_sync(&di->job->job, true);
++                    canceled = true;
++                }
++                job_unref(&di->job->job);
++                di->job = NULL;
+                 aio_context_release(ctx);
+-                canceled = true;
+             }
+         }
+     }