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Message-ID: <2siidejxg252y5jsrevsx3pcfijzvtw5a76ct4ysajzllxxofl@surpwwn4naps>
Date: Mon, 1 Dec 2025 14:15:43 +0100
From: Joerg Roedel <joro@...tes.org>
To: Linus Torvalds <torvalds@...ux-foundation.org>
Cc: Will Deacon <will@...nel.org>, linux-kernel@...r.kernel.org,
iommu@...ts.linux.dev
Subject: [git pull] IOMMU Updates for Linux v6.19
Hi Linus,
The following changes since commit ac3fd01e4c1efce8f2c054cdeb2ddd2fc0fb150d:
Linux 6.18-rc7 (2025-11-23 14:53:16 -0800)
are available in the Git repository at:
git://git.kernel.org/pub/scm/linux/kernel/git/iommu/linux.git tags/iommu-updates-v6.19
for you to fetch changes up to 0d081b16946ef449fcb35b6edc1ef6f9fea6f0a0:
Merge branches 'arm/smmu/updates', 'arm/smmu/bindings', 'mediatek', 'nvidia/tegra', 'intel/vt-d', 'amd/amd-vi' and 'core' into next (2025-11-28 08:44:21 +0100)
----------------------------------------------------------------
IOMMU Updates for Linux v6.19
Including:
- Introduction of the generic IO page-table framework with support for
Intel and AMD IOMMU formats from Jason. This has good potential for
unifying more IO page-table implementations and making future
enhancements more easy. But this also needed quite some fixes during
development. All known issues have been fixed, but my feeling is that
there is a higher potential than usual that more might be needed.
- Intel VT-d updates:
- Use right invalidation hint in qi_desc_iotlb().
- Reduce the scope of INTEL_IOMMU_FLOPPY_WA.
- ARM-SMMU updates:
- Qualcomm device-tree binding updates for Kaanapali and Glymur SoCs
and a new clock for the TBU.
- Fix error handling if level 1 CD table allocation fails.
- Permit more than the architectural maximum number of SMRs for funky
Qualcomm mis-implementations of SMMUv2.
- Mediatek driver:
- MT8189 iommu support.
- Move ARM IO-pgtable selftests to kunit.
- Device leak fixes for a couple of drivers.
- Random smaller fixes and improvements.
----------------------------------------------------------------
Aashish Sharma (1):
iommu/vt-d: Fix unused invalidation hint in qi_desc_iotlb
Abel Vesa (1):
iommu/arm-smmu-qcom: Add Glymur MDSS compatible
Alejandro Jimenez (1):
iommu/amd: Use the generic iommu page table
Bagas Sanjaya (3):
Documentation: genpt: Don't use code block marker before iommu_amdv1.c include listing
iommupt: Describe @bitnr parameter
iommupt: Actually correct pt_test_sw_bit_{acquire_release}() parameter description
Dheeraj Kumar Srivastava (1):
iommu/amd: Enhance "Completion-wait Time-out" error message
Geert Uytterhoeven (1):
genpt: Make GENERIC_PT invisible
Jason Gunthorpe (31):
iommu: Generic support for RMRs during device release
genpt: Generic Page Table base API
genpt: Add Documentation/ files
iommupt: Add the basic structure of the iommu implementation
iommupt: Add the AMD IOMMU v1 page table format
iommupt: Add iova_to_phys op
iommupt: Add unmap_pages op
iommupt: Add map_pages op
iommupt: Add read_and_clear_dirty op
iommupt: Add a kunit test for Generic Page Table
iommupt: Add a mock pagetable format for iommufd selftest to use
iommufd: Change the selftest to use iommupt instead of xarray
iommupt: Add the x86 64 bit page table format
iommu/amd: Remove AMD io_pgtable support
iommupt: Add a kunit test for the IOMMU implementation
iommu/pages: Add support for incoherent IOMMU page table walkers
iommupt: Add basic support for SW bits in the page table
iommupt: Use the incoherent start/stop functions for PT_FEAT_DMA_INCOHERENT
iommupt: Flush the CPU cache after any writes to the page table
iommupt: Add the Intel VT-d second stage page table format
iommupt/x86: Set the dirty bit only for writable PTEs
iommupt/x86: Support SW bits and permit PT_FEAT_DMA_INCOHERENT
iommu/vt-d: Use the generic iommu page table
iommu/vt-d: Follow PT_FEAT_DMA_INCOHERENT into the PASID entry
iommupt: Add a kunit test for the SW bits
iommupt: Documentation fixes
iommupt: Fix unlikely flows in increase_top()
iommupt: Avoid a compiler bug with sw_bit
powerpc/pseries/svm: Make mem_encrypt.h self contained
iommupt/vtd: Allow VT-d to have a larger table top than the vasz requires
iommupt/vtd: Support mgaw's less than a 4 level walk for first stage
Jean-Philippe Brucker (1):
MAINTAINERS: Update my email address
Jingyi Wang (1):
dt-bindings: arm-smmu: Add compatible for Kaanapali and Glymur SoCs
Jinhui Guo (2):
iommu/amd: Fix pci_segment memleak in alloc_pci_segment()
iommu/amd: Propagate the error code returned by __modify_irte_ga() in modify_irte_ga()
Joerg Roedel (2):
iommu/iommupt: Fix build error in genericpt unit-tests
Merge branches 'arm/smmu/updates', 'arm/smmu/bindings', 'mediatek', 'nvidia/tegra', 'intel/vt-d', 'amd/amd-vi' and 'core' into next
Johan Hovold (16):
amba: tegra-ahb: enable compile testing
iommu: tegra: enable compile testing
iommu/apple-dart: fix device leak on of_xlate()
iommu/qcom: fix device leak on of_xlate()
iommu/exynos: fix device leak on of_xlate()
iommu/ipmmu-vmsa: fix device leak on of_xlate()
iommu/mediatek: fix device leak on of_xlate()
iommu/mediatek: fix use-after-free on probe deferral
iommu/mediatek: simplify dt parsing error handling
iommu/mediatek-v1: fix device leak on probe_device()
iommu/mediatek-v1: fix device leaks on probe()
iommu/mediatek-v1: add missing larb count sanity check
iommu/omap: fix device leaks on probe_device()
iommu/omap: simplify probe_device() error handling
iommu/sun50i: fix device leak on of_xlate()
iommu/tegra: fix device leak on probe_device()
Konrad Dybcio (1):
dt-bindings: iommu: qcom_iommu: Allow 'tbu' clock
Lu Baolu (1):
iommu/vt-d: Restore previous domain::aperture_end calculation
Mostafa Saleh (4):
iommu/io-pgtable-arm: Remove arm_lpae_dump_ops()
iommu/io-pgtable-arm: Move selftests to a separate file
iommu/io-pgtable-arm-selftests: Modularize the test
iommu/io-pgtable-arm-selftests: Use KUnit
Nicolin Chen (5):
iommu/arm-smmu-v3: Set release_domain to arm_smmu_blocked_domain
iommu/exynos-iommu: Set release_domain to exynos_identity_domain
iommu/amd: Set release_domain to blocked_domain
iommu: Do not revert set_domain for the last gdev
iommu: Pass in old domain to attach_dev callback functions
Pedro Demarchi Gomes (1):
iommu/pages: use folio_nr_pages() instead of shift operation
Ryan Huang (1):
iommu/arm-smmu-v3: Fix error check in arm_smmu_alloc_cd_tables
Songtang Liu (1):
iommu/amd: Fix potential out-of-bounds read in iommu_mmio_show
Stephan Gerhold (1):
iommu/arm-smmu-qcom: Enable use of all SMR groups when running bare-metal
Vineeth Pillai (Google) (1):
iommu/vt-d: Set INTEL_IOMMU_FLOPPY_WA depend on BLK_DEV_FD
Zhengnan Chen (5):
dt-bindings: mediatek: mt8189: Add bindings for MM & APU & INFRA IOMMU
iommu/mediatek: Add a flag DL_WITH_MULTI_LARB
iommu/mediatek: mt8189: Add APU IOMMUs support
iommu/mediatek: mt8189: Add INFRA IOMMUs support
iommu/mediatek: mt8189: Add MM IOMMUs support
.clang-format | 1 +
.mailmap | 3 +-
.../devicetree/bindings/iommu/arm,smmu.yaml | 2 +
.../devicetree/bindings/iommu/mediatek,iommu.yaml | 8 +
.../devicetree/bindings/iommu/qcom,iommu.yaml | 4 +
Documentation/driver-api/generic_pt.rst | 137 +++
Documentation/driver-api/index.rst | 1 +
MAINTAINERS | 6 +-
arch/powerpc/include/asm/mem_encrypt.h | 3 +
arch/powerpc/kernel/iommu.c | 5 +-
drivers/amba/Kconfig | 2 +-
drivers/iommu/Kconfig | 15 +-
drivers/iommu/Makefile | 2 +
drivers/iommu/amd/Kconfig | 5 +-
drivers/iommu/amd/Makefile | 2 +-
drivers/iommu/amd/amd_iommu.h | 1 -
drivers/iommu/amd/amd_iommu_types.h | 114 +-
drivers/iommu/amd/debugfs.c | 2 +-
drivers/iommu/amd/init.c | 15 +-
drivers/iommu/amd/io_pgtable.c | 577 ---------
drivers/iommu/amd/io_pgtable_v2.c | 370 ------
drivers/iommu/amd/iommu.c | 572 ++++-----
drivers/iommu/apple-dart.c | 11 +-
.../iommu/arm/arm-smmu-v3/arm-smmu-v3-iommufd.c | 5 +-
drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c | 33 +-
drivers/iommu/arm/arm-smmu/arm-smmu-qcom.c | 28 +-
drivers/iommu/arm/arm-smmu/arm-smmu.c | 9 +-
drivers/iommu/arm/arm-smmu/qcom_iommu.c | 21 +-
drivers/iommu/exynos-iommu.c | 20 +-
drivers/iommu/fsl_pamu_domain.c | 12 +-
drivers/iommu/generic_pt/.kunitconfig | 14 +
drivers/iommu/generic_pt/Kconfig | 79 ++
drivers/iommu/generic_pt/fmt/Makefile | 28 +
drivers/iommu/generic_pt/fmt/amdv1.h | 411 +++++++
drivers/iommu/generic_pt/fmt/defs_amdv1.h | 21 +
drivers/iommu/generic_pt/fmt/defs_vtdss.h | 21 +
drivers/iommu/generic_pt/fmt/defs_x86_64.h | 21 +
drivers/iommu/generic_pt/fmt/iommu_amdv1.c | 15 +
drivers/iommu/generic_pt/fmt/iommu_mock.c | 10 +
drivers/iommu/generic_pt/fmt/iommu_template.h | 48 +
drivers/iommu/generic_pt/fmt/iommu_vtdss.c | 10 +
drivers/iommu/generic_pt/fmt/iommu_x86_64.c | 11 +
drivers/iommu/generic_pt/fmt/vtdss.h | 285 +++++
drivers/iommu/generic_pt/fmt/x86_64.h | 279 +++++
drivers/iommu/generic_pt/iommu_pt.h | 1289 ++++++++++++++++++++
drivers/iommu/generic_pt/kunit_generic_pt.h | 823 +++++++++++++
drivers/iommu/generic_pt/kunit_iommu.h | 184 +++
drivers/iommu/generic_pt/kunit_iommu_pt.h | 487 ++++++++
drivers/iommu/generic_pt/pt_common.h | 389 ++++++
drivers/iommu/generic_pt/pt_defs.h | 332 +++++
drivers/iommu/generic_pt/pt_fmt_defaults.h | 295 +++++
drivers/iommu/generic_pt/pt_iter.h | 636 ++++++++++
drivers/iommu/generic_pt/pt_log2.h | 122 ++
drivers/iommu/intel/Kconfig | 6 +-
drivers/iommu/intel/iommu.c | 931 +++-----------
drivers/iommu/intel/iommu.h | 99 +-
drivers/iommu/intel/nested.c | 7 +-
drivers/iommu/intel/pasid.c | 44 +-
drivers/iommu/intel/pasid.h | 1 +
drivers/iommu/intel/svm.c | 1 +
drivers/iommu/io-pgtable-arm-selftests.c | 214 ++++
drivers/iommu/io-pgtable-arm.c | 203 ---
drivers/iommu/io-pgtable.c | 4 -
drivers/iommu/iommu-pages.c | 136 ++-
drivers/iommu/iommu-pages.h | 51 +-
drivers/iommu/iommu.c | 44 +-
drivers/iommu/iommufd/Kconfig | 1 +
drivers/iommu/iommufd/iommufd_test.h | 11 +-
drivers/iommu/iommufd/selftest.c | 426 +++----
drivers/iommu/ipmmu-vmsa.c | 12 +-
drivers/iommu/msm_iommu.c | 11 +-
drivers/iommu/mtk_iommu.c | 174 ++-
drivers/iommu/mtk_iommu_v1.c | 35 +-
drivers/iommu/omap-iommu.c | 19 +-
drivers/iommu/omap-iommu.h | 2 -
drivers/iommu/riscv/iommu.c | 9 +-
drivers/iommu/rockchip-iommu.c | 20 +-
drivers/iommu/s390-iommu.c | 13 +-
drivers/iommu/sprd-iommu.c | 3 +-
drivers/iommu/sun50i-iommu.c | 10 +-
drivers/iommu/tegra-smmu.c | 15 +-
drivers/iommu/virtio-iommu.c | 6 +-
.../memory/mediatek,mt8189-memory-port.h | 283 +++++
include/linux/generic_pt/common.h | 191 +++
include/linux/generic_pt/iommu.h | 293 +++++
include/linux/io-pgtable.h | 2 -
include/linux/iommu.h | 3 +-
include/linux/irqchip/riscv-imsic.h | 3 +-
tools/testing/selftests/iommu/iommufd.c | 60 +-
tools/testing/selftests/iommu/iommufd_utils.h | 12 +
90 files changed, 8284 insertions(+), 2867 deletions(-)
create mode 100644 Documentation/driver-api/generic_pt.rst
delete mode 100644 drivers/iommu/amd/io_pgtable.c
delete mode 100644 drivers/iommu/amd/io_pgtable_v2.c
create mode 100644 drivers/iommu/generic_pt/.kunitconfig
create mode 100644 drivers/iommu/generic_pt/Kconfig
create mode 100644 drivers/iommu/generic_pt/fmt/Makefile
create mode 100644 drivers/iommu/generic_pt/fmt/amdv1.h
create mode 100644 drivers/iommu/generic_pt/fmt/defs_amdv1.h
create mode 100644 drivers/iommu/generic_pt/fmt/defs_vtdss.h
create mode 100644 drivers/iommu/generic_pt/fmt/defs_x86_64.h
create mode 100644 drivers/iommu/generic_pt/fmt/iommu_amdv1.c
create mode 100644 drivers/iommu/generic_pt/fmt/iommu_mock.c
create mode 100644 drivers/iommu/generic_pt/fmt/iommu_template.h
create mode 100644 drivers/iommu/generic_pt/fmt/iommu_vtdss.c
create mode 100644 drivers/iommu/generic_pt/fmt/iommu_x86_64.c
create mode 100644 drivers/iommu/generic_pt/fmt/vtdss.h
create mode 100644 drivers/iommu/generic_pt/fmt/x86_64.h
create mode 100644 drivers/iommu/generic_pt/iommu_pt.h
create mode 100644 drivers/iommu/generic_pt/kunit_generic_pt.h
create mode 100644 drivers/iommu/generic_pt/kunit_iommu.h
create mode 100644 drivers/iommu/generic_pt/kunit_iommu_pt.h
create mode 100644 drivers/iommu/generic_pt/pt_common.h
create mode 100644 drivers/iommu/generic_pt/pt_defs.h
create mode 100644 drivers/iommu/generic_pt/pt_fmt_defaults.h
create mode 100644 drivers/iommu/generic_pt/pt_iter.h
create mode 100644 drivers/iommu/generic_pt/pt_log2.h
create mode 100644 drivers/iommu/io-pgtable-arm-selftests.c
create mode 100644 include/dt-bindings/memory/mediatek,mt8189-memory-port.h
create mode 100644 include/linux/generic_pt/common.h
create mode 100644 include/linux/generic_pt/iommu.h
Please pull.
Thanks,
Joerg
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