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Message-ID: <20250804162201.66d196ad.alex.williamson@redhat.com>
Date: Mon, 4 Aug 2025 16:22:01 -0600
From: Alex Williamson <alex.williamson@...hat.com>
To: Linus Torvalds <torvalds@...ux-foundation.org>
Cc: "kvm@...r.kernel.org" <kvm@...r.kernel.org>,
"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: [GIT PULL] VFIO updates for v6.17-rc1
Hi Linus,
The following changes since commit d7b8f8e20813f0179d8ef519541a3527e7661d3a:
Linux 6.16-rc5 (2025-07-06 14:10:26 -0700)
are available in the Git repository at:
https://github.com/awilliam/linux-vfio.git tags/vfio-v6.17-rc1
for you to fetch changes up to d2272d898186fa96c6fa4ad067219b45b8c2ef5f:
vfio/type1: correct logic of vfio_find_vpfn() (2025-07-27 08:20:31 -0600)
----------------------------------------------------------------
VFIO updates for v6.17-rc1
- Fix imbalance where the no-iommu/cdev device path skips too much
on open, failing to increment a reference, but still decrements
the reference on close. Add bounds checking to prevent such
underflows. (Jacob Pan)
- Fill missing detach_ioas op for pds_vfio_pci, fixing probe failure
when used with IOMMUFD. (Brett Creeley)
- Split SR-IOV VFs to separate dev_set, avoiding unnecessary
serialization between VFs that appear on the same bus.
(Alex Williamson)
- Fix a theoretical integer overflow is the mlx5-vfio-pci variant
driver. (Artem Sadovnikov)
- Use batching on contiguous pages to significantly improve DMA map
and unmap performance when using hugetlbfs or THP backed memory
with the legacy vfio type1 IOMMU backend. (Li Zhe)
- Implement missing VF token checking support via vfio cdev/IOMMUFD
interface. (Jason Gunthorpe)
- Update QAT vfio-pci variant driver to claim latest VF devices.
(Małgorzata Mielnik)
- Add a cond_resched() call to avoid holding the CPU too long during
DMA mapping operations. (Keith Busch)
----------------------------------------------------------------
Alex Williamson (1):
vfio/pci: Separate SR-IOV VF dev_set
Artem Sadovnikov (1):
vfio/mlx5: fix possible overflow in tracking max message size
Brett Creeley (1):
vfio/pds: Fix missing detach_ioas op
Jacob Pan (2):
vfio: Fix unbalanced vfio_df_close call in no-iommu mode
vfio: Prevent open_count decrement to negative
Jason Gunthorpe (1):
vfio/pci: Do vf_token checks for VFIO_DEVICE_BIND_IOMMUFD
Keith Busch (1):
vfio/type1: conditional rescheduling while pinning
Li Zhe (6):
mm: introduce num_pages_contiguous()
vfio/type1: optimize vfio_pin_pages_remote()
vfio/type1: batch vfio_find_vpfn() in function vfio_unpin_pages_remote()
vfio/type1: introduce a new member has_rsvd for struct vfio_dma
vfio/type1: optimize vfio_unpin_pages_remote()
vfio/type1: correct logic of vfio_find_vpfn()
Małgorzata Mielnik (1):
vfio/qat: add support for intel QAT 6xxx virtual functions
Xin Zeng (1):
vfio/qat: Remove myself from VFIO QAT PCI driver maintainers
MAINTAINERS | 1 -
drivers/vfio/device_cdev.c | 38 +++++++-
drivers/vfio/group.c | 7 +-
drivers/vfio/iommufd.c | 4 +
drivers/vfio/pci/hisilicon/hisi_acc_vfio_pci.c | 1 +
drivers/vfio/pci/mlx5/cmd.c | 4 +-
drivers/vfio/pci/mlx5/main.c | 1 +
drivers/vfio/pci/nvgrace-gpu/main.c | 2 +
drivers/vfio/pci/pds/vfio_dev.c | 2 +
drivers/vfio/pci/qat/main.c | 5 +-
drivers/vfio/pci/vfio_pci.c | 1 +
drivers/vfio/pci/vfio_pci_core.c | 24 +++--
drivers/vfio/pci/virtio/main.c | 3 +
drivers/vfio/vfio_iommu_type1.c | 118 ++++++++++++++++++++-----
drivers/vfio/vfio_main.c | 3 +-
include/linux/mm.h | 23 +++++
include/linux/vfio.h | 4 +
include/linux/vfio_pci_core.h | 2 +
include/uapi/linux/vfio.h | 12 ++-
19 files changed, 212 insertions(+), 43 deletions(-)
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