From: Alex Williamson <alex@shazbot.org>
To: Linus Torvalds <torvalds@linux-foundation.org>
Cc: alex@shazbot.org,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
"kvm@vger.kernel.org" <kvm@vger.kernel.org>
Subject: [GIT PULL] VFIO updates for v7.4-rc1
Date: Wed, 21 Oct 2026 22:50:45 -0600 [thread overview]
Message-ID: <20261021225045.519bf535@shazbot.org> (raw)
Hi Linus,
The following changes since commit 93f51579e7df248780214094418f205253383cc5:
Linux 7.3-rc4 (2026-09-20 13:48:15 -0700)
are available in the Git repository at:
https://github.com/awilliam/linux-vfio.git tags/vfio-v7.4-rc1
for you to fetch changes up to 076d7e989cb69f6ded7d60f2a080eb909930061b:
vfio/nvgrace-gpu: Drop the usemem length check in open_device (2026-10-16 09:32:02 -0600)
----------------------------------------------------------------
VFIO updates for v7.4-rc1
- Fix missing selftest <libgen.h> include for basename() to support
non-glibc builds. (Hisam Mehboob)
- Add vfio selftest documentation covering the libvfio helper library
and guidance for developers to aid in adding and understanding the
framework. (David Matlack)
- Fix vfio cdev open path to prevent a second open from clobbering
the vf_token or clearing the KVM reference. Add a selftest to
avoid future recurrences. (Alex Williamson)
- Extend vfio selftest mix_and_match timeouts, in particular to
account for systems where generated faults can induce heavy SMM
load, delaying internal timeouts. Also extend timeout for
execution via runner to account for various tests exceeding default
45s timeout. (Alex Williamson)
- Add tracking for non-reserved mappings into a vfio_dma object in
order to optimize the tear-down paths where per-page tests can be
entirely skipped. This resolves a soft lockup for large memory
GPUs. (Samuel Crossley)
- Add vfio selftest driver for mlx5, providing another target for
exercising DMA and interrupts against a physical device.
(Jason Gunthorpe)
- Hardening against read-only region promotion, preserving vm_pgoff
for unmap_mapping_range(), and reject non-shared MMIO mmaps as
necessary through vfio-platform, vfio-fsl-mc, and vfio-cdx. These
prevent future issues, though none are currently reachable.
(Abdifatah Suruur)
- Fix 8-byte ioeventfd support, removing a static error test that was
erroneously left in place when generalizing 8-byte io accesses.
(Li RongQing)
- Fix missed RCU drain on module exit. (Jiale Yao)
- Fix off-by-one boundary check in migration support within the mlx5
vfio-pci variant driver. (Seongjun Hong)
- Remove drvdata usage convention across vfio-pci-core, allowing
variant drivers to freely create their own conventions and enabling
a future Rust-based variant driver. A DRM topic branch is also
merged in support of this effort, modifying the vga arbiter API
to more cleanly remove the drvdata dependency. (Simon Song)
- Fix hisi_acc vfio-pci variant driver to avoid NULL pointer accesses
when bound to unsupported devices and also disabling migration
support when running on 64K host page size due to BAR mapping
constraints. (Longfang Liu)
- Add device IDs for Crescent Island and Nova Lake devices to the Xe
vfio-pci variant driver. (Satyanarayana K V P)
- Fix fallback mode in nvgrace-gpu variant driver to use symmetric
open and close handlers to avoid reported use-after-free issue.
Remove the resulting unnecessary test in the now single-purpose
open function. (Andrea Parri)
----------------------------------------------------------------
Abdifatah Suruur (7):
vfio/platform: prevent read-only region mappings from becoming writable
vfio/fsl-mc: prevent read-only region mappings from becoming writable
vfio/cdx: prevent read-only region mappings from becoming writable
vfio/platform: keep logical vm_pgoff in MMIO region mmap
vfio/fsl-mc: keep logical vm_pgoff in MMIO region mmap
vfio/cdx: keep logical vm_pgoff in MMIO region mmap
vfio/cdx: reject non-shared MMIO mmaps
Alex Williamson (6):
vfio: Reject a second cdev open before mutating shared device state
vfio: selftests: Extend mix_and_match timeout to 90s
vfio: selftests: Extend timeout for runner executions
Merge branch 'mlx5-vfio-selftest-v7' of https://github.com/awilliam/linux-vfio into v7.4/vfio/next
vfio: selftests: Verify a failed second open preserves the vf_token
Merge tag 'topic/pci-vgaarb-rework-2026-10-01' of https://gitlab.freedesktop.org/drm/kernel into v7.4/vfio/next
Andrea Parri (2):
vfio/nvgrace-gpu: Use a core-only open_device in fallback mode
vfio/nvgrace-gpu: Drop the usemem length check in open_device
Dave Airlie (1):
PCI/VGA: pass a data pointer to be used in the decode callback (v2)
David Matlack (1):
vfio: selftests: Add documentation
Hemanth Selam (1):
vfio: fix typo "stucture" in comment
Hisam Mehboob (1):
vfio: selftests: Include <libgen.h> for basename() on non-glibc builds
Jason Gunthorpe (10):
net/mlx5: Add IFC structures for CQE and WQE
net/mlx5: Move HW constant groups from device.h/cq.h to mlx5_ifc.h
net/mlx5: Extract MLX5_SET/GET macros into mlx5_ifc_macros.h
net/mlx5: Add ONCE and MMIO accessor variants to mlx5_ifc_macros.h
selftests: Add additional kernel functions to tools/include/
vfio: selftests: Allow drivers to specify required region size
vfio: selftests: Add dev_dbg
vfio: selftests: Add mlx5 driver - HW init and command interface
vfio: selftests: Add mlx5 driver - data path and memcpy ops
vfio: selftests: mlx5 driver - add send_msi support
Jiale Yao (1):
vfio/pci: Drain eventfd RCU callbacks on module exit
Li RongQing (1):
vfio/pci: Restore 8-byte ioeventfd support
Longfang Liu (2):
hisi_acc_vfio_pci: fix NULL dereference in reset_prepare on PF passthrough
hisi_acc_vfio_pci: reject live migration on 64KB page with QM_HW_V3 hardware
Samuel Crossley (1):
vfio/type1: avoid walking reserved-only mappings while unpinning
Satyanarayana K V P (1):
vfio/xe: Add CRI and NVL device IDs
Seongjun Hong (1):
vfio/mlx5: Fix boundary check in set_report_output()
Simon Song (1):
vfio/pci: Remove the core dependency on driver data
Documentation/driver-api/index.rst | 1 +
Documentation/driver-api/vfio-selftests.rst | 252 +++
MAINTAINERS | 1 +
drivers/gpu/drm/amd/amdgpu/amdgpu_device.c | 9 +-
drivers/gpu/drm/i915/display/intel_vga.c | 7 +-
drivers/gpu/drm/loongson/lsdc_drv.c | 4 +-
drivers/gpu/drm/nouveau/nouveau_vga.c | 6 +-
drivers/gpu/drm/radeon/radeon_device.c | 9 +-
drivers/pci/vgaarb.c | 13 +-
drivers/vfio/cdx/main.c | 17 +-
drivers/vfio/device_cdev.c | 12 +
drivers/vfio/fsl-mc/vfio_fsl_mc.c | 15 +-
drivers/vfio/mdev/mdev_core.c | 2 +-
drivers/vfio/pci/hisilicon/hisi_acc_vfio_pci.c | 73 +-
drivers/vfio/pci/ism/main.c | 19 +-
drivers/vfio/pci/mlx5/cmd.c | 2 +-
drivers/vfio/pci/mlx5/main.c | 13 +-
drivers/vfio/pci/nvgrace-gpu/main.c | 42 +-
drivers/vfio/pci/pds/pci_drv.c | 8 +-
drivers/vfio/pci/pds/vfio_dev.c | 5 +-
drivers/vfio/pci/qat/main.c | 12 +-
drivers/vfio/pci/vfio_pci.c | 33 +-
drivers/vfio/pci/vfio_pci_core.c | 46 +-
drivers/vfio/pci/vfio_pci_rdwr.c | 3 -
drivers/vfio/pci/virtio/main.c | 8 +-
drivers/vfio/pci/xe/main.c | 13 +-
drivers/vfio/platform/vfio_platform_common.c | 15 +-
drivers/vfio/vfio_iommu_type1.c | 12 +-
drivers/vfio/vfio_main.c | 7 -
include/linux/mlx5/cq.h | 10 -
include/linux/mlx5/device.h | 231 +--
include/linux/mlx5/mlx5_ifc.h | 178 ++
include/linux/mlx5/mlx5_ifc_macros.h | 185 ++
include/linux/vfio_pci_core.h | 41 +-
include/linux/vgaarb.h | 8 +-
tools/arch/arm64/include/asm/barrier.h | 4 +
tools/arch/x86/include/asm/barrier.h | 5 +
tools/include/asm-generic/io.h | 28 +
tools/include/asm/barrier.h | 8 +
tools/include/linux/stddef.h | 10 +
.../selftests/kvm/include/arm64/processor.h | 4 +-
tools/testing/selftests/kvm/irq_test.c | 2 -
tools/testing/selftests/vfio/.gitignore | 1 +
tools/testing/selftests/vfio/lib/drivers/dsa/dsa.c | 1 +
tools/testing/selftests/vfio/lib/drivers/igb/igb.c | 1 +
.../testing/selftests/vfio/lib/drivers/ioat/ioat.c | 1 +
.../testing/selftests/vfio/lib/drivers/mlx5/mlx5.c | 1928 ++++++++++++++++++++
.../selftests/vfio/lib/drivers/mlx5/mlx5_hw.h | 114 ++
.../selftests/vfio/lib/drivers/mlx5/mlx5_ifc.h | 1 +
.../vfio/lib/drivers/mlx5/mlx5_ifc_fpga.h | 1 +
.../vfio/lib/drivers/mlx5/mlx5_ifc_macros.h | 1 +
.../vfio/lib/drivers/nv_falcon/nv_falcon.c | 1 +
.../vfio/lib/include/libvfio/vfio_pci_device.h | 11 +
.../vfio/lib/include/libvfio/vfio_pci_driver.h | 6 +
tools/testing/selftests/vfio/lib/iova_allocator.c | 7 +-
tools/testing/selftests/vfio/lib/libvfio.mk | 1 +
tools/testing/selftests/vfio/lib/sysfs.c | 1 +
tools/testing/selftests/vfio/lib/vfio_pci_driver.c | 6 +
tools/testing/selftests/vfio/settings | 5 +
.../testing/selftests/vfio/vfio_pci_driver_test.c | 5 +-
.../selftests/vfio/vfio_pci_sriov_uapi_test.c | 35 +
61 files changed, 3080 insertions(+), 420 deletions(-)
create mode 100644 Documentation/driver-api/vfio-selftests.rst
create mode 100644 include/linux/mlx5/mlx5_ifc_macros.h
create mode 100644 tools/include/linux/stddef.h
create mode 100644 tools/testing/selftests/vfio/lib/drivers/mlx5/mlx5.c
create mode 100644 tools/testing/selftests/vfio/lib/drivers/mlx5/mlx5_hw.h
create mode 120000 tools/testing/selftests/vfio/lib/drivers/mlx5/mlx5_ifc.h
create mode 120000 tools/testing/selftests/vfio/lib/drivers/mlx5/mlx5_ifc_fpga.h
create mode 120000 tools/testing/selftests/vfio/lib/drivers/mlx5/mlx5_ifc_macros.h
create mode 100644 tools/testing/selftests/vfio/settings
reply other threads:[~2026-10-22 4:50 UTC|newest]
Thread overview: [no followups] expand[flat|nested] mbox.gz Atom feed
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20261021225045.519bf535@shazbot.org \
--to=alex@shazbot.org \
--cc=kvm@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=torvalds@linux-foundation.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox
all inboxes | Powered by JetHome®