linux-kernel - [GIT PULL] VFIO updates for v6.16-rc1

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Message-ID: <20250529144851.1ce2ce66.alex.williamson@redhat.com>
Date: Thu, 29 May 2025 14:48:51 -0600
From: Alex Williamson <alex.williamson@...hat.com>
To: Linus Torvalds <torvalds@...ux-foundation.org>
Cc: <linux-kernel@...r.kernel.org>, "kvm@...r.kernel.org"
 <kvm@...r.kernel.org>
Subject: [GIT PULL] VFIO updates for v6.16-rc1

Hi Linus,

Please note the diffstat below is generated relative to a trial merge
against mainline as the merged topic branch from Marek has already been
pulled via 23022f545610.  Thanks,

Alex

The following changes since commit a5806cd506af5a7c19bcd596e4708b5c464bfd21:

  Linux 6.15-rc7 (2025-05-18 13:57:29 -0700)

are available in the Git repository at:

  https://github.com/awilliam/linux-vfio.git tags/vfio-v6.16-rc1

for you to fetch changes up to 4518e5a60c7fbf0cdff393c2681db39d77b4f87e:

  vfio/type1: Fix error unwind in migration dirty bitmap allocation (2025-05-22 10:41:24 -0600)

----------------------------------------------------------------
VFIO updates for v6.16-rc1

 - Remove an outdated DMA unmap optimization that relies on a feature
   only implemented in AMDv1 page tables. (Jason Gunthorpe)

 - Fix various migration issues in the hisi_acc_vfio_pci variant
   driver, including use of a wrong DMA address requiring an update to
   the migration data structure, resending task completion interrupt
   after migration to re-sync queues, fixing a write-back cache
   sequencing issue, fixing a driver unload issue, behaving correctly
   when the guest driver is not loaded, and avoiding to squash errors
   from sub-functions. (Longfang Liu)

 - mlx5-vfio-pci variant driver update to make use of the new two-step
   DMA API for migration, using a page array directly rather than
   using a page list mapped across a scatter list. (Leon Romanovsky)

 - Fix an incorrect loop index used when unwinding allocation of dirty
   page bitmaps on error, resulting in temporary failure in freeing
   unused bitmaps. (Li RongQing)

----------------------------------------------------------------
Alex Williamson (1):
      Merge branch 'dma-mapping-for-6.16-two-step-api' of git://git.kernel.org/pub/scm/linux/kernel/git/mszyprowski/linux into v6.16/vfio/next

Jason Gunthorpe (1):
      vfio/type1: Remove Fine Grained Superpages detection

Leon Romanovsky (3):
      vfio/mlx5: Explicitly use number of pages instead of allocated length
      vfio/mlx5: Rewrite create mkey flow to allow better code reuse
      vfio/mlx5: Enable the DMA link API

Li RongQing (1):
      vfio/type1: Fix error unwind in migration dirty bitmap allocation

Longfang Liu (6):
      hisi_acc_vfio_pci: fix XQE dma address error
      hisi_acc_vfio_pci: add eq and aeq interruption restore
      hisi_acc_vfio_pci: bugfix cache write-back issue
      hisi_acc_vfio_pci: bugfix the problem of uninstalling driver
      hisi_acc_vfio_pci: bugfix live migration function without VF device driver
      hisi_acc_vfio_pci: update function return values.

 drivers/vfio/pci/hisilicon/hisi_acc_vfio_pci.c | 121 +++-----
 drivers/vfio/pci/hisilicon/hisi_acc_vfio_pci.h |  14 +-
 drivers/vfio/pci/mlx5/cmd.c                    | 371 +++++++++++++------------
 drivers/vfio/pci/mlx5/cmd.h                    |  35 +--
 drivers/vfio/pci/mlx5/main.c                   |  87 +++---
 drivers/vfio/vfio_iommu_type1.c                |  51 +++-
 6 files changed, 341 insertions(+), 338 deletions(-)