[PATCH QEMU HCI-8.1 v7 00/35] vfio: support qemu-update with passed through GPU's and vGPU's #VSTOR-103860

[Andrey Drobyshev <andrey.drobyshev@virtuozzo.com>]

v6 -> v7:

Fixes of the issues found by Sashiko AI review.

- Patch 4 ("migration/cpr-exec: require a file or exec migration URI"):
  the message says the check covers the incoming URI too

- Patch 6 ("migration/cpr-exec: close the persisted state if the
  channel fails to open"): the fd is parsed before its variable is
  unset

- Patch 7 (NEW) ("migration/cpr-exec: don't leak the dup'd memfd if
  g_setenv() fails"): the dup was leaked on that path and a failed
  dup() went unchecked; the patches after it are renumbered

- Patch 32 -> 33 ("VZ: vfio/region: preserve BAR mappings across
  cpr-exec"): CPR.rst no longer says cpr-transfer preserves VFIO
  devices

- Patch 34 -> 35 ("VZ: vfio/migration: don't wait for stop-copy-only
  device state"): the message covers devices without pre-copy, which
  the rule applies to as well

v6: http://lore.virtuozzo.com/20261102-vfio_v1-v6-0-9bc7cabc850d@virtuozzo.com
---
Akihiko Odaki (1):
      vfio/pci: Grow buffer in vfio_pci_host_match()

Andrey Drobyshev (21):
      VZ: migration/cpr-exec: fix Error leak in preserve_ram()
      migration/cpr-exec: restore RAM write access if exec fails
      vfio/region: create BAR dma-bufs with O_CLOEXEC
      migration/cpr-exec: require a file or exec migration URI
      migration: close the CPR state if the outgoing channel fails to open
      migration/cpr-exec: close the persisted state if the channel fails to open
      migration/cpr-exec: don't leak the dup'd memfd if g_setenv() fails
      migration: don't refuse a blocker over a migration of another mode
      kvm: tolerate ioctls after kvm_close()
      kvm: fix coalesced MMIO flush racing with kvm_close()
      migration/cpr: add cpr_is_in_progress()
      vfio/migration: don't migrate device state during CPR
      vfio/migration: don't assume the device is running on CPR incoming
      migration/ram: don't start dirty logging in CPR modes
      VZ: vfio/cpr: don't close KVM on cpr-exec
      VZ: migration/cpr-exec: abort cpr-exec if memory can't be preserved
      VZ: migration/cpr-exec: take the vhost-net devices back if exec fails
      VZ: migration/cpr-exec: don't exec if a vhost-net device can't be released
      VZ: vfio/region: preserve BAR mappings across cpr-exec #VSTOR-103860
      VZ: migration/cpr-exec: allow cpr-exec with VFIO devices #VSTOR-103860
      VZ: vfio/migration: don't wait for stop-copy-only device state #VSTOR-141821

Arun Menon (1):
      migration: Fix regression of passing error_fatal into vmstate_load_state()

Cédric Le Goater (2):
      vfio/pci: Reject invalid MSI-X Table and PBA BIR values
      vfio/pci: Fix information leak in vfio_rom_read()

Fabiano Rosas (3):
      migration: yank: Move register instance earlier
      migration: Free cpr-transfer MigrationAddress along with gsource
      migration: Move CPR HUP watch to cpr-transfer.c

Igor Mammedov (1):
      q35: Fix migration of SMRAM state

Mario Casquero (1):
      vfio/pci: Initialize rom_read_failed in vfio_pci_load_rom()

Markus Armbruster (1):
      migration: Plug memory leaks after migrate_set_error()

Peter Xu (1):
      migration: Fix crash on second migration when cancel early

Tycho Andersen (AMD) (1):
      hw/vfio: Fix liveness check in vfio_connect_kvm_msi_virq()

Vladimir Sementsov-Ogievskiy (1):
      migration: vmstate_save_state_v: fix double error_setg

Yanfei Xu (1):
      migration: ensure APIC is loaded prior to VFIO PCI devices

 accel/kvm/kvm-all.c           |  24 +++++++-
 docs/devel/migration/CPR.rst  |  12 ++--
 hw/display/virtio-gpu.c       |  22 +++++---
 hw/intc/apic_common.c         |   1 +
 hw/net/vhost_net.c            |  62 ++++++++++++++++++++-
 hw/pci-host/q35.c             |  25 ++++-----
 hw/pci/pci.c                  |  15 ++++-
 hw/s390x/virtio-ccw.c         |  17 +++++-
 hw/scsi/spapr_vscsi.c         |  10 +++-
 hw/vfio/cpr.c                 |  11 ++--
 hw/vfio/device.c              |  29 +++++++---
 hw/vfio/migration-multifd.c   |   2 +
 hw/vfio/migration.c           |  68 ++++++++++++++++++++---
 hw/vfio/pci.c                 |  25 ++++++---
 hw/vfio/region.c              |  51 ++++++++++++++++-
 hw/virtio/virtio-mmio.c       |  15 ++++-
 hw/virtio/virtio-pci.c        |  15 ++++-
 hw/virtio/virtio.c            |  10 +++-
 include/hw/vfio/vfio-cpr.h    |   1 +
 include/hw/vfio/vfio-device.h |   2 -
 include/hw/virtio/vhost.h     |   2 +
 include/migration/cpr.h       |   7 +++
 include/migration/vmstate.h   |   1 +
 include/net/vhost_net.h       |   3 +-
 migration/cpr-exec.c          |  54 +++++++++++++++---
 migration/cpr-transfer.c      |  33 +++++++++++
 migration/cpr.c               |  22 ++++++++
 migration/migration.c         | 126 ++++++++++++++++++++++++------------------
 migration/migration.h         |   5 ++
 migration/multifd.c           |   2 +
 migration/ram.c               |   7 ++-
 migration/vmstate.c           |   7 ++-
 tests/qtest/q35-test.c        |   6 --
 33 files changed, 546 insertions(+), 146 deletions(-)
---
base-commit: 1c84596876fb77b3e25d56cd4a4fa0c32f1faa32
change-id: 20261009-vfio_v1-a176cddd6b64

Best regards,
--  
Andrey Drobyshev <andrey.drobyshev@virtuozzo.com>