[GIT PULL] VFIO updates for v7.2-rc1

[Alex Williamson <alex@shazbot.org>]

Hi Linus,

The following changes since commit 5200f5f493f79f14bbdc349e402a40dfb32f23c8:

  Linux 7.1-rc4 (2026-05-17 13:59:58 -0700)

are available in the Git repository at:

  https://github.com/awilliam/linux-vfio.git tags/vfio-v7.2-rc1

for you to fetch changes up to 785562e31dbcd85ca583cf58c446e63aa8a5af08:

  vfio: selftests: Ensure libvfio output dirs are always created (2026-06-12 10:25:44 -0600)

----------------------------------------------------------------
VFIO updates for v7.2-rc1

 - Fix out-of-tree vfio selftest builds with make O=. (Jason Gunthorpe)

 - Allow vfio selftests to build when ARCH=x86 is used for 64-bit x86
   builds. (David Matlack)

 - Tighten vfio selftest infrastructure with stricter builds, safer
   path handling, sysfs helpers, and reusable device/VF-token setup.
   Build on that to add the SR-IOV UAPI selftest across supported
   IOMMU modes. (Raghavendra Rao Ananta)

 - Conclude earlier vfio PCI BAR work already taken as v7.1 fixes by
   replacing vfio_pci_core_setup_barmap() and direct barmap[] access
   with vfio_pci_core_get_iomap().  Fix resulting sparse warnings.
   (Matt Evans)

 - Simplify hisi_acc vfio-pci variant driver device-info reads by
   using the mailbox's new direct command-based read helper.
   (Weili Qian)

 - Avoid duplicate reset handling in the Xe vfio-pci variant driver
   reset-done path. (GuoHan Zhao)

 - Resolve a lockdep circular dependency splat by tracking active
   VFs with a private sriov_active flag rather than calling
   pci_num_vf() under memory_lock. (Raghavendra Rao Ananta)

 - Add CXL DVSEC-based readiness polling for Blackwell-Next in the
   nvgrace-gpu vfio-pci variant driver, including interruptible,
   lockless waits to support worst case spec defined timeouts.
   (Ankit Agrawal)

 - Prevent vfio_mig_get_next_state() from spinning forever on blocked
   migration state transition. (Junrui Luo)

 - Fix a qat vfio variant driver migration resume race by taking the
   migration file lock before boundary checks. (Giovanni Cabiddu)

 - Add explicit dependencies between vfio selftest output object files
   and output directories to ensure directories are always created.
   (David Matlack)

----------------------------------------------------------------
Ankit Agrawal (1):
      vfio/nvgrace-gpu: Add Blackwell-Next GPU readiness check via CXL DVSEC

David Matlack (2):
      vfio: selftests: Allow builds when ARCH=x86
      vfio: selftests: Ensure libvfio output dirs are always created

Giovanni Cabiddu (1):
      vfio/qat: fix f_pos race in qat_vf_resume_write()

GuoHan Zhao (1):
      vfio/xe: avoid duplicate reset in xe_vfio_pci_reset_done

Jason Gunthorpe (1):
      vfio: selftests: Fix out-of-tree build with make O=

Junrui Luo (1):
      vfio: prevent infinite loop in vfio_mig_get_next_state() on blocked arc

Matt Evans (2):
      vfio/pci: Replace vfio_pci_core_setup_barmap() with vfio_pci_core_get_iomap()
      vfio/pci: Fix sparse warning in vfio_pci_core_get_iomap()

Raghavendra Rao Ananta (9):
      vfio: selftests: Add -Wall and -Werror to the Makefile
      vfio: selftests: Introduce snprintf_assert()
      vfio: selftests: Introduce a sysfs lib
      vfio: selftests: Extend container/iommufd setup for passing vf_token
      vfio: selftests: Expose more vfio_pci_device functions
      vfio: selftests: Add helper to set/override a vf_token
      vfio: selftests: Add helpers to alloc/free vfio_pci_device
      vfio: selftests: Add tests to validate SR-IOV UAPI
      vfio/pci: Use a private flag to prevent power state change with VFs

Weili Qian (1):
      hisi_acc_vfio_pci: simplify the command for reading device information

 drivers/vfio/pci/hisilicon/hisi_acc_vfio_pci.c     |  39 +---
 drivers/vfio/pci/nvgrace-gpu/main.c                | 180 +++++++++++++++--
 drivers/vfio/pci/qat/main.c                        |  16 +-
 drivers/vfio/pci/vfio_pci_core.c                   |  28 ++-
 drivers/vfio/pci/vfio_pci_dmabuf.c                 |   2 +-
 drivers/vfio/pci/vfio_pci_rdwr.c                   |  30 +--
 drivers/vfio/pci/virtio/legacy_io.c                |  13 +-
 drivers/vfio/pci/xe/main.c                         |   2 -
 drivers/vfio/vfio_main.c                           |   3 +-
 include/linux/vfio_pci_core.h                      |  21 +-
 include/uapi/linux/pci_regs.h                      |   1 +
 tools/testing/selftests/vfio/Makefile              |  11 +-
 tools/testing/selftests/vfio/lib/include/libvfio.h |   1 +
 .../selftests/vfio/lib/include/libvfio/assert.h    |   5 +
 .../selftests/vfio/lib/include/libvfio/sysfs.h     |  12 ++
 .../vfio/lib/include/libvfio/vfio_pci_device.h     |  11 ++
 tools/testing/selftests/vfio/lib/libvfio.mk        |   7 +-
 tools/testing/selftests/vfio/lib/sysfs.c           | 150 ++++++++++++++
 tools/testing/selftests/vfio/lib/vfio_pci_device.c | 157 +++++++++++----
 .../testing/selftests/vfio/vfio_dma_mapping_test.c |   6 +-
 .../testing/selftests/vfio/vfio_pci_device_test.c  |  21 +-
 .../selftests/vfio/vfio_pci_sriov_uapi_test.c      | 217 +++++++++++++++++++++
 22 files changed, 775 insertions(+), 158 deletions(-)
 create mode 100644 tools/testing/selftests/vfio/lib/include/libvfio/sysfs.h
 create mode 100644 tools/testing/selftests/vfio/lib/sysfs.c
 create mode 100644 tools/testing/selftests/vfio/vfio_pci_sriov_uapi_test.c