[git pull] IOMMU Updates for Linux v6.18

From: Joerg Roedel
Date: Thu Oct 02 2025 - 05:33:18 EST


Hi Linus,

The following changes since commit 07e27ad16399afcd693be20211b0dfae63e0615f:

Linux 6.17-rc7 (2025-09-21 15:08:52 -0700)

are available in the Git repository at:

git://git.kernel.org/pub/scm/linux/kernel/git/iommu/linux.git tags/iommu-updates-v6.18

for you to fetch changes up to 5f4b8c03f41782f37d278946296d9443a7194153:

Merge branches 'apple/dart', 'ti/omap', 'riscv', 'intel/vt-d' and 'amd/amd-vi' into next (2025-09-26 10:03:33 +0200)

----------------------------------------------------------------
IOMMU Updates for Linux v6.18:

Including:

- Inte VT-d:
- IOMMU driver updated to the latest VT-d specification.
- Don't enable PRS if PDS isn't supported.
- Replace snprintf with scnprintf.
- Fix legacy mode page table dump through debugfs.
- Miscellaneous cleanups.

- AMD-Vi:
- Support kdump boot when SNP is enabled.

- Apple-DART:
- 4-level page-table support.

- RISC-V IOMMU:
- ACPI support.

- Small number of miscellaneous cleanups and fixes.

----------------------------------------------------------------
Ashish Kalra (4):
iommu/amd: Add support to remap/unmap IOMMU buffers for kdump
iommu/amd: Reuse device table for kdump
crypto: ccp: Skip SEV and SNP INIT for kdump boot
iommu/amd: Skip enabling command/event buffers for kdump

Hector Martin (4):
iommu/apple-dart: Make the hw register fields u32s
iommu/io-pgtable-dart: Add 4-level page table support
iommu/apple-dart: Add 4-level page table support
iommu/apple-dart: Clear stream error indicator bits for T8110 DARTs

Janne Grunau (1):
iommu/io-pgtable-dart: Fix off by one error in table index check

Joerg Roedel (1):
Merge branches 'apple/dart', 'ti/omap', 'riscv', 'intel/vt-d' and 'amd/amd-vi' into next

Lu Baolu (5):
iommu/vt-d: Remove LPIG from page group response descriptor
iommu/vt-d: PRS isn't usable if PDS isn't supported
iommu/vt-d: Removal of Advanced Fault Logging
iommu/vt-d: debugfs: Avoid dumping context command register
iommu/vt-d: Disallow dirty tracking if incoherent page walk

Qianfeng Rong (1):
iommu/omap: Use int type to store negative error codes

Seyediman Seyedarab (1):
iommu/vt-d: Replace snprintf with scnprintf in dmar_latency_snapshot()

Sunil V L (3):
ACPI: RISC-V: Add support for RIMT
ACPI: scan: Add support for RISC-V in acpi_iommu_configure_id()
iommu/riscv: Add ACPI support

Vineeth Pillai (Google) (1):
iommu/vt-d: debugfs: Fix legacy mode page table dump logic

Xichao Zhao (1):
iommu/amd: use str_plural() to simplify the code

Yury Norov (NVIDIA) (1):
iommu/vt-d: Drop unused cap_super_offset()

MAINTAINERS | 1 +
arch/riscv/Kconfig | 1 +
drivers/acpi/Kconfig | 4 +
drivers/acpi/riscv/Kconfig | 7 +
drivers/acpi/riscv/Makefile | 1 +
drivers/acpi/riscv/init.c | 2 +
drivers/acpi/riscv/init.h | 1 +
drivers/acpi/riscv/rimt.c | 520 +++++++++++++++++++++++++++++++++++
drivers/acpi/scan.c | 4 +
drivers/crypto/ccp/sev-dev.c | 10 +
drivers/iommu/amd/amd_iommu_types.h | 5 +
drivers/iommu/amd/init.c | 284 +++++++++++++------
drivers/iommu/amd/iommu.c | 5 +-
drivers/iommu/apple-dart.c | 55 ++--
drivers/iommu/intel/debugfs.c | 29 +-
drivers/iommu/intel/iommu.c | 2 +-
drivers/iommu/intel/iommu.h | 7 +-
drivers/iommu/intel/perf.c | 10 +-
drivers/iommu/intel/perf.h | 5 +-
drivers/iommu/intel/prq.c | 7 +-
drivers/iommu/io-pgtable-dart.c | 139 ++++++----
drivers/iommu/omap-iommu.c | 2 +-
drivers/iommu/riscv/iommu-platform.c | 17 +-
drivers/iommu/riscv/iommu.c | 10 +
include/linux/acpi_rimt.h | 28 ++
include/linux/io-pgtable.h | 1 +
26 files changed, 959 insertions(+), 198 deletions(-)
create mode 100644 drivers/acpi/riscv/Kconfig
create mode 100644 drivers/acpi/riscv/rimt.c
create mode 100644 include/linux/acpi_rimt.h

Please pull.

Thanks,

Joerg