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

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# gpg:                using RSA key A0F66548F04895EBFE6B0B6051A343C7CFFBECA1
# gpg: Good signature from "Cédric Le Goater <clg@redhat.com>" [full]
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* 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>

1 files changed, 2 insertions, 3 deletions

diff --git a/docs/devel/migration/CPR.rst b/docs/devel/migration/CPR.rst
index 7897873c86..0a0fd4f6dc 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.