diff options
| author | Stefan Hajnoczi <stefanha@redhat.com> | 2025-07-04 08:58:39 -0400 |
|---|---|---|
| committer | Stefan Hajnoczi <stefanha@redhat.com> | 2025-07-04 08:58:39 -0400 |
| commit | 563ac3d18129a2770a285cc16c20ad50c8adc7c0 (patch) | |
| tree | 7de8446bf1540d5a09ee51408cb5298097f56293 /docs | |
| parent | a876b05d38c813501e60fb50c8a45b30a965e902 (diff) | |
| parent | 7437caad2052d920452ff7b9b7bc84f5e8e55c90 (diff) | |
| download | qemu-563ac3d18129a2770a285cc16c20ad50c8adc7c0.zip qemu-563ac3d18129a2770a285cc16c20ad50c8adc7c0.tar.gz qemu-563ac3d18129a2770a285cc16c20ad50c8adc7c0.tar.bz2 | |
Merge tag 'pull-vfio-20250704' of https://github.com/legoater/qemu into staging
vfio queue:
* Added small cleanups for b4 and scope
* Restricted TDX build to 64-bit target
* Fixed issues introduced in first part of VFIO live update support
* Added full VFIO live update support
# -----BEGIN PGP SIGNATURE-----
#
# iQIzBAABCAAdFiEEoPZlSPBIlev+awtgUaNDx8/77KEFAmhnlBMACgkQUaNDx8/7
# 7KFOxw//dIPpGcYIjEGpIkIh6NF3VK6xmDAG0aZEeM+5fCzdor2DPkD7ZPyqND3S
# /YkR8GSOHd+Qm5W+73LHOdV5RFMt4wagyHiAKUMpEFHY7ZLduxIXlACoUo+F5cnh
# SUnhC6KX7Gu1/Nndb4X4w6SNOyhoRKtQ2EqpRsrGdIaBkX8s6w2jF/INPTPdpg73
# lulJZCAFNzyIWytck9ohJf8To9IsvkCXTF6mcywURa9MBaAarRttXoFjuZsXb7zn
# NqGVtantNAaJmKu26X3ScUWn9P02WryhPB6KT7+B3G/b87Su1cnbAwYakNSFPJIx
# I/gaw0EPzHM+b6mavA4IdvKDJGR7GMvpJEGqUEpntc6FJ3+g1B7qsedgeBUc/RKB
# UaRmtYbvlMv5wSmaLcxsT3S3BnABbrd4EedZX5uOBFMrtnTiOqrMUEcoMaf5ogvN
# KlJkrjNQkfHxTbp5G+nXHuTzae3k2Ylm196b2yhgARfUL70jiak/B+ADeezVcVmW
# 6ZpotrAvMxu9RlFdxTSbL0/lR0rfKZTecqMOSFA+FlmjcTJ0QW1SbweMdsfgW/uU
# /2Hfmw6zUQ80/tMqYMztFWsiov7C8a8ZMmuZwDQp+AdCVGgFEigfNJVQYgujbqKz
# g9Ta9cNPyvF5hpnml5u8IzAzM95HrhIPFmmpUBZyWOCeL6chSHk=
# =Cu7b
# -----END PGP SIGNATURE-----
# gpg: Signature made Fri 04 Jul 2025 04:42:59 EDT
# gpg: using RSA key A0F66548F04895EBFE6B0B6051A343C7CFFBECA1
# gpg: Good signature from "Cédric Le Goater <clg@redhat.com>" [full]
# gpg: aka "Cédric Le Goater <clg@kaod.org>" [full]
# Primary key fingerprint: A0F6 6548 F048 95EB FE6B 0B60 51A3 43C7 CFFB ECA1
* tag 'pull-vfio-20250704' of https://github.com/legoater/qemu: (27 commits)
vfio: doc changes for cpr
vfio/container: delete old cpr register
iommufd: preserve DMA mappings
vfio/iommufd: change process
vfio/iommufd: reconstruct hwpt
vfio/iommufd: reconstruct device
vfio/iommufd: preserve descriptors
vfio/iommufd: cpr state
migration: vfio cpr state hook
vfio/iommufd: register container for cpr
vfio/iommufd: device name blocker
vfio/iommufd: add vfio_device_free_name
vfio/iommufd: invariant device name
vfio/iommufd: use IOMMU_IOAS_MAP_FILE
physmem: qemu_ram_get_fd_offset
backends/iommufd: change process ioctl
backends/iommufd: iommufd_backend_map_file_dma
migration: cpr_get_fd_param helper
migration: close kvm after cpr
vfio-pci: preserve INTx
...
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Diffstat (limited to 'docs')
| -rw-r--r-- | docs/devel/migration/CPR.rst | 5 |
1 files changed, 2 insertions, 3 deletions
diff --git a/docs/devel/migration/CPR.rst b/docs/devel/migration/CPR.rst index 7897873..0a0fd4f 100644 --- a/docs/devel/migration/CPR.rst +++ b/docs/devel/migration/CPR.rst @@ -152,8 +152,7 @@ cpr-transfer mode This mode allows the user to transfer a guest to a new QEMU instance on the same host with minimal guest pause time, by preserving guest RAM in place, albeit with new virtual addresses in new QEMU. Devices -and their pinned memory pages will also be preserved in a future QEMU -release. +and their pinned memory pages are also preserved for VFIO and IOMMUFD. The user starts new QEMU on the same host as old QEMU, with command- line arguments to create the same machine, plus the ``-incoming`` @@ -322,6 +321,6 @@ Futures cpr-transfer mode is based on a capability to transfer open file descriptors from old to new QEMU. In the future, descriptors for -vfio, iommufd, vhost, and char devices could be transferred, +vhost, and char devices could be transferred, preserving those devices and their kernel state without interruption, even if they do not explicitly support live migration. |