Merge tag 'pull-vfio-20251022' of https://github.com/legoater/qemu into staging

vfio queue:

* Fix CPR transfer
* Add support for VFIO_DMA_UNMAP_FLAG_ALL
* Fix vfio-user documentation
* Update Alex Williamson's email address
* Fix for vfio-region cache for the vGPU use case

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* tag 'pull-vfio-20251022' of https://github.com/legoater/qemu:
  vfio: only check region info cache for initial regions
  vfio: rename field to "num_initial_regions"
  MAINTAINERS: Update Alex Williamson's email address
  docs/system/devices/vfio-user: fix formatting
  vfio/listener: Add an assertion for unmap_all
  vfio/iommufd: Support unmap all in one ioctl()
  vfio/container: Support unmap all in one ioctl()
  accel/kvm: Fix an erroneous check on coalesced_mmio_ring
  vfio/iommufd: Restore vbasedev's reference to hwpt after CPR transfer
  vfio/iommufd: Set cpr.ioas_id on source side for CPR transfer
  vfio/cpr-legacy: drop an erroneous assert
  vfio/container: Remap only populated parts in a section

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

diff --cc MAINTAINERS
Simple merge