- Update QAT vfio-pci variant driver for Gen 5, 420xx devices.
(Vijay Sundar Selvamani, Suman Kumar Chakraborty, Giovanni Cabiddu)
- Fix vfio selftest MMIO DMA mapping selftest. (Alex Mastro)
- Conversions to const struct class in support of class_create()
deprecation. (Jori Koolstra)
- Improve selftest compiler compatibility by avoiding initializer
on variable-length array. (Manish Honap)
- Define new uAPI for drivers supporting migration to advise user-
space of new initial data for reducing target startup latency.
Implemented for mlx5 vfio-pci variant driver. (Yishai Hadas)
- Enable vfio selftests on aarch64, not just cross-compiles reporting
arm64. (Ted Logan)
- Update vfio selftest driver support to include additional DSA
devices. (Yi Lai)
- Unconditionally include debugfs root pointer in vfio device struct,
avoiding a build failure seen in hisi_acc variant driver without
debugfs otherwise. (Arnd Bergmann)
- Add support for the s390 ISM (Internal Shared Memory) device via
a new variant driver. The device is unique in the size of its BAR
space (256TiB) and lack of mmap support. (Julian Ruess)
- Enforce that vfio-pci drivers implement a name in their ops
structure for use in sequestering SR-IOV VFs. (Alex Williamson)
- Prune leftover group notifier code. (Paolo Bonzini)
- Fix Xe vfio-pci variant driver to avoid migration support as a
dependency in the reset path and missing release call.
(Michał Winiarski)
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Merge tag 'vfio-v7.1-rc1' of https://github.com/awilliam/linux-vfio
Pull VFIO updates from Alex Williamson:
- Update QAT vfio-pci variant driver for Gen 5, 420xx devices (Vijay
Sundar Selvamani, Suman Kumar Chakraborty, Giovanni Cabiddu)
- Fix vfio selftest MMIO DMA mapping selftest (Alex Mastro)
- Conversions to const struct class in support of class_create()
deprecation (Jori Koolstra)
- Improve selftest compiler compatibility by avoiding initializer on
variable-length array (Manish Honap)
- Define new uAPI for drivers supporting migration to advise user-
space of new initial data for reducing target startup latency.
Implemented for mlx5 vfio-pci variant driver (Yishai Hadas)
- Enable vfio selftests on aarch64, not just cross-compiles reporting
arm64 (Ted Logan)
- Update vfio selftest driver support to include additional DSA devices
(Yi Lai)
- Unconditionally include debugfs root pointer in vfio device struct,
avoiding a build failure seen in hisi_acc variant driver without
debugfs otherwise (Arnd Bergmann)
- Add support for the s390 ISM (Internal Shared Memory) device via a
new variant driver. The device is unique in the size of its BAR space
(256TiB) and lack of mmap support (Julian Ruess)
- Enforce that vfio-pci drivers implement a name in their ops structure
for use in sequestering SR-IOV VFs (Alex Williamson)
- Prune leftover group notifier code (Paolo Bonzini)
- Fix Xe vfio-pci variant driver to avoid migration support as a
dependency in the reset path and missing release call (Michał
Winiarski)
* tag 'vfio-v7.1-rc1' of https://github.com/awilliam/linux-vfio: (23 commits)
vfio/xe: Add a missing vfio_pci_core_release_dev()
vfio/xe: Reorganize the init to decouple migration from reset
vfio: remove dead notifier code
vfio/pci: Require vfio_device_ops.name
MAINTAINERS: add VFIO ISM PCI DRIVER section
vfio/ism: Implement vfio_pci driver for ISM devices
vfio/pci: Rename vfio_config_do_rw() to vfio_pci_config_rw_single() and export it
vfio: unhide vdev->debug_root
vfio/qat: add support for Intel QAT 420xx VFs
vfio: selftests: Support DMR and GNR-D DSA devices
vfio: selftests: Build tests on aarch64
vfio/mlx5: Add REINIT support to VFIO_MIG_GET_PRECOPY_INFO
vfio/mlx5: consider inflight SAVE during PRE_COPY
net/mlx5: Add IFC bits for migration state
vfio: Adapt drivers to use the core helper vfio_check_precopy_ioctl
vfio: Add support for VFIO_DEVICE_FEATURE_MIG_PRECOPY_INFOv2
vfio: Define uAPI for re-init initial bytes during the PRE_COPY phase
vfio: selftests: Fix VLA initialisation in vfio_pci_irq_set()
vfio: uapi: fix comment typo
vfio: mdev: replace mtty_dev->vd_class with a const struct class
...
Hook into the PCI error handler reset_prepare() callback to notify
the PF about an upcoming VF FLR before reset_done() is executed.
This enables early FLR_PREPARE signaling and ensures that the PF is
aware of the reset before the completion wait begins.
Signed-off-by: Piotr Piórkowski <piotr.piorkowski@intel.com>
Cc: Michał Winiarski <michal.winiarski@intel.com>
Reviewed-by: Michał Winiarski <michal.winiarski@intel.com>
Reviewed-by: Alex Williamson <alex@shazbot.org>
Link: https://patch.msgid.link/20260309152449.910636-3-piotr.piorkowski@intel.com
Signed-off-by: Michał Winiarski <michal.winiarski@intel.com>
This is the result of running the Coccinelle script from
scripts/coccinelle/api/kmalloc_objs.cocci. The script is designed to
avoid scalar types (which need careful case-by-case checking), and
instead replace kmalloc-family calls that allocate struct or union
object instances:
Single allocations: kmalloc(sizeof(TYPE), ...)
are replaced with: kmalloc_obj(TYPE, ...)
Array allocations: kmalloc_array(COUNT, sizeof(TYPE), ...)
are replaced with: kmalloc_objs(TYPE, COUNT, ...)
Flex array allocations: kmalloc(struct_size(PTR, FAM, COUNT), ...)
are replaced with: kmalloc_flex(*PTR, FAM, COUNT, ...)
(where TYPE may also be *VAR)
The resulting allocations no longer return "void *", instead returning
"TYPE *".
Signed-off-by: Kees Cook <kees@kernel.org>
migf->filp is accessed after migf has been freed. Save the error
value before calling kfree() to prevent use-after-free.
Fixes: 1f5556ec8b ("vfio/xe: Add device specific vfio_pci driver variant for Intel graphics")
Signed-off-by: Alper Ak <alperyasinak1@gmail.com>
Link: https://lore.kernel.org/r/20251225151349.360870-1-alperyasinak1@gmail.com
Signed-off-by: Alex Williamson <alex@shazbot.org>
New requirement for the vfio drivers was added by the commit
f978595038 ("vfio: Require drivers to implement get_region_info")
followed by commit 1b0ecb5baf ("vfio/pci: Convert all PCI drivers
to get_region_info_caps") that was missed by the new vfio/xe driver.
Add handler for .get_region_info_caps to avoid -EINVAL errors.
Fixes: 2e38c50ae4 ("vfio/xe: Add device specific vfio_pci driver variant for Intel graphics")
Signed-off-by: Michal Wajdeczko <michal.wajdeczko@intel.com>
Reviewed-by: Marcin Bernatowicz <marcin.bernatowicz@linux.intel.com>
Tested-by: Marcin Bernatowicz <marcin.bernatowicz@linux.intel.com>
Link: https://lore.kernel.org/r/20251218205106.4578-1-michal.wajdeczko@intel.com
Signed-off-by: Alex Williamson <alex@shazbot.org>
In addition to generic VFIO PCI functionality, the driver implements
VFIO migration uAPI, allowing userspace to enable migration for Intel
Graphics SR-IOV Virtual Functions.
The driver binds to VF device and uses API exposed by Xe driver to
transfer the VF migration data under the control of PF device.
Acked-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Reviewed-by: Kevin Tian <kevin.tian@intel.com>
Reviewed-by: Alex Williamson <alex@shazbot.org>
Link: https://patch.msgid.link/20251127093934.1462188-5-michal.winiarski@intel.com
Link: https://lore.kernel.org/all/20251128125322.34edbeaf.alex@shazbot.org/
Signed-off-by: Michał Winiarski <michal.winiarski@intel.com>
(cherry picked from commit 2e38c50ae4)
Signed-off-by: Thomas Hellström <thomas.hellstrom@linux.intel.com>
