[git pull] IOMMU Fixes for Linux v7.3-rc2

From: Joerg Roedel

Date: Sat Sep 12 2026 - 04:33:27 EST


Hi Linus,

The following changes since commit df2908090cda368b01ff43709f51890076c56157:

Linux 7.3-rc2 (2026-09-06 15:07:20 -0700)

are available in the Git repository at:

git://git.kernel.org/pub/scm/linux/kernel/git/iommu/linux.git tags/iommu-fixes-v7.3-rc2

for you to fetch changes up to b63c3c26726576e2a87baeee80bc202a5a43c9e5:

iommu/amd: Remove unused macro (2026-09-11 17:27:22 +0200)

----------------------------------------------------------------
IOMMU fixes for Linux v7.3-rc3:

- RISC-V IOMMU:
- Serialize command queue publication to prevent concurrent producers
from exposing incomplete or out-of-order commands to hardware.
- Wait for queue space outside the command queue lock.
- Avoid waiting for IOFENCE completion when command enqueue failed.

- AMD IOMMU:
- Prevent GA log buffers from being reallocated and leaked during
resume, where allocation also occurs in an unsuitable syscore
callback context.
- Fix a regression on older systems whose firmware advertises
incorrect IOMMU features.
- Preserve allocation errors when assigning host domain IDs to nested
domains.

- s390 IOMMU:
- Prevent a NULL dereference when translating an unmapped IOVA with
five-level ZPCI translation tables.

- Miscellaneous:
- Remove a stale MAINTAINERS entry and clean up unused or redundant
AMD IOMMU declarations, macros, and checks.

----------------------------------------------------------------
Daasaradhi Mannava (1):
MAINTAINERS: Drop the nonexistent vsi-iommu.h file entry

Fangyu Yu (3):
iommu/riscv: Add command queue lock
iommu/riscv: Serialize command queue publishing
iommu/riscv: Avoid waiting on failed command enqueue

Hemanth Selam (1):
iommu/amd: Fix ineffective error check in nested domain allocation

Karl Mehltretter (1):
iommu/amd: Do not reallocate GA log buffers on resume

Niklas Schnelle (1):
iommu/s390: Fix NULL dereference in iova_to_phys() with ZPCI_TABLE_TYPE_RFX

Vasant Hegde (5):
iommu/amd: Fix premature break in init_iommu_one() again
iommu/amd: Make iommu_sva_set_dev_pasid as static
iommu/amd: Remove redundant check in irq_remapping_select()
iommu/amd: Remove redundant checks from interrupt handler path
iommu/amd: Remove unused macro

MAINTAINERS | 1 -
drivers/iommu/amd/amd_iommu.h | 3 -
drivers/iommu/amd/amd_iommu_types.h | 16 -----
drivers/iommu/amd/init.c | 18 ++++--
drivers/iommu/amd/iommu.c | 6 --
drivers/iommu/amd/nested.c | 7 ++-
drivers/iommu/amd/pasid.c | 6 +-
drivers/iommu/amd/ppr.c | 3 -
drivers/iommu/riscv/iommu.c | 117 +++++++++++++++++++++---------------
drivers/iommu/riscv/iommu.h | 2 +
drivers/iommu/s390-iommu.c | 2 +
11 files changed, 93 insertions(+), 88 deletions(-)

Please pull.

Thanks,

Joerg