documentation · Maintained

Maintainers

• M Jonathan Corbet <corbet@lwn.net>
• R Shuah Khan <skhan@linuxfoundation.org>

Paths

• F Documentation/
• F tools/lib/python/
• F tools/docs/
• F tools/net/ynl/pyynl/lib/doc_generator.py
• X Documentation/ABI/
• X Documentation/admin-guide/media/
• X Documentation/devicetree/
• X Documentation/driver-api/media/
• X Documentation/firmware-guide/acpi/
• X Documentation/i2c/
• X Documentation/netlink/
• X Documentation/power/
• X Documentation/spi/
• X Documentation/userspace-api/media/

Last 30 days

Most active threads (last 7 days)

• HOTtoday [PATCH v9 0/4] iommu/arm-smmu-v3: Tegra264 invalidation workaround
  2026-07-26 08:19 · 1 reply in 7d · Ashish Mhetre <hidden>
• HOTtoday [PATCH v2 0/2] iommu/arm-smmu-v3: Fix SVA vs. HAFT issues
  2026-07-23 14:19 · 1 reply in 7d · Robin Murphy <robin.murphy@arm.com>
• WARM3d [PATCH v8 0/3] iommu/arm-smmu-v3: Tegra264 invalidation workaround
  2026-07-22 10:21 · 1 reply in 7d · Ashish Mhetre <hidden>

Active reviewers (last 30 days)

• Nicolin Chen <hidden>
  2 attestations (2 Reviewed-by) · last on 2026-07-14
• Fan Du <hidden>
  2 attestations (1 Co-developed-by, 1 Suggested-by) · last on 2026-07-14
• Jason Gunthorpe <jgg@nvidia.com>
  1 attestation (1 Reviewed-by) · last on 2026-07-17
• chenhuguanshen <hidden>
  1 attestation (1 Tested-by) · last on 2026-07-14
• Suravee Suthikulpanit <suravee.suthikulpanit@amd.com>
  1 attestation (1 Co-developed-by) · last on 2026-07-13
• Yi Liu <hidden>
  1 attestation (1 Reviewed-by) · last on 2026-07-06
• Kevin Tian <kevin.tian@intel.com>
  1 attestation (1 Reviewed-by) · last on 2026-07-06

Recent patches

Most-recent 30 patches in this subsystem on linux-iommu (capped at 30), ordered by date desc.

• HOTtoday [PATCH v9 4/4] iommu/arm-smmu-v3: Enable CFGI/TLBI-repeat workaround on Tegra264
  2026-07-26 · Ashish Mhetre <hidden>
• HOTtoday [PATCH v2 1/2] arm64: Add override for MMFR1.HAFDBS
  2026-07-23 · Robin Murphy <robin.murphy@arm.com>
• WARM3d [PATCH v8 3/3] iommu/arm-smmu-v3: Enable CFGI/TLBI-repeat workaround on Tegra264
  2026-07-22 · Ashish Mhetre <hidden>
• HOTtoday REVIEWED: 6 (6M) [PATCH v8 09/23] dma-mapping: Add internal shared allocation attribute
  2026-07-17 · "Aneesh Kumar K.V (Arm)" <aneesh.kumar@kernel.org>
• WARM3d [PATCH v7 24/24] KVM: arm64: Add documentation for pKVM DMA isolation
  2026-07-15 · Mostafa Saleh <smostafa@google.com>
• WARM3d [PATCH v7 08/24] KVM: arm64: iommu: Add memory pool
  2026-07-15 · Mostafa Saleh <smostafa@google.com>
• COOLING12d [RFC PATCH 3/7] resctrl: Add a devices file for external requester assignment
  2026-07-14 · Zhanpeng Zhang <hidden>
• COOLING5d REVIEWED: 1 (0M) [PATCH v7 3/3] iommu/arm-smmu-v3: Enable CFGI/TLBI-repeat workaround on Tegra264
  2026-07-14 · Ashish Mhetre <hidden>
• COOLING6d REVIEWED: 1 (0M) [PATCH] dma/swiotlb: make high watermark tracking boot-time opt-in
  2026-07-14 · Frank Chen <hidden>
• COOLING13d REVIEWED: 1 (0M) [PATCH v6 3/3] iommu/arm-smmu-v3: Enable CFGI/TLBI-repeat workaround on Tegra264
  2026-07-13 · Ashish Mhetre <hidden>
• COOLING13d [RFC PATCH v3 6/6] iommu/amd: Provide kernel command line option to enable GAPPI
  2026-07-13 · Sairaj Kodilkar <hidden>
• COLD17d [PATCH v5 3/3] iommu/arm-smmu-v3: Enable CFGI/TLBI-repeat workaround on Tegra264
  2026-07-09 · Ashish Mhetre <hidden>
• COLD17d [RFC PATCH] x86/pci-dma: add "any" keyword to swiotlb= kernel parameter
  2026-07-08 · Aakarsh Jain <hidden>
• COOLING12d REVIEWED: 3 (2M) [PATCH v10 6/6] Documentation: Update VFIO NOIOMMU mode
  2026-07-06 · Jacob Pan <hidden>
• COLD17d [PATCH v2] swiotlb: introduce Kconfig option for compile-time default pool size
  2026-07-02 · <hidden>
• COOLING10d [PATCH v7 09/22] dma-mapping: Add internal shared allocation attribute
  2026-07-01 · "Aneesh Kumar K.V (Arm)" <aneesh.kumar@kernel.org>
• COLD40d REVIEWED: 3 (2M) [PATCH v9 6/6] Documentation: Update VFIO NOIOMMU mode
  2026-06-11 · Jacob Pan <hidden>
• COLD18d [PATCH v4 3/3] iommu/arm-smmu-v3: Issue CFGI/TLBI twice on Tegra264
  2026-06-09 · Ashish Mhetre <hidden>
• COLD47d REVIEWED: 3 (2M) [PATCH v8 6/6] Documentation: Update VFIO NOIOMMU mode
  2026-06-03 · Jacob Pan <hidden>
• COLD53d REVIEWED: 1 (0M) [PATCH v7 6/6] Documentation: Update VFIO NOIOMMU mode
  2026-06-03 · Jacob Pan <hidden>
• COLD60d IN LINUX-NEXT [PATCH] dma-contiguous: simplify numa cma area handling
  2026-05-25 · Feng Tang <hidden>
• COLD54d [PATCH v6 7/7] Documentation: Update VFIO NOIOMMU mode
  2026-05-21 · Jacob Pan <hidden>
• COLD45d [PATCH 02/15] accel/qda: Add QDA driver documentation
  2026-05-19 · Ekansh Gupta via B4 Relay <devnull+ekansh.gupta.oss.qualcomm.com@kernel.org>
• STALE67d [PATCH v16 38/38] x86/boot: Legacy boot DRTM support for Secure Launch
  2026-05-15 · Ross Philipson <hidden>
• STALE67d [PATCH v16 15/38] Documentation/security: Secure Launch kernel documentation
  2026-05-15 · Ross Philipson <hidden>
• STALE66d [PATCH v5 9/9] Documentation: Update VFIO NOIOMMU mode
  2026-05-11 · Jacob Pan <hidden>
• COOLING13d [PATCH v6 25/25] KVM: arm64: Add documentation for pKVM DMA isolation
  2026-05-01 · Mostafa Saleh <smostafa@google.com>
• COOLING13d [PATCH v6 09/25] KVM: arm64: iommu: Add memory pool
  2026-05-01 · Mostafa Saleh <smostafa@google.com>
• COOLING7d [PATCH v2 4/4] iommu/amd: Introduce boot option ivmd=seg:bus:dev.fun,start,size,flags
  2026-04-24 · Suravee Suthikulpanit <suravee.suthikulpanit@amd.com>
• STALE83d [PATCH v4 11/11] Documentation: PCI: Add documentation for Live Update
  2026-04-23 · David Matlack <dmatlack@google.com>

Needs attention (review trailers in, no pickup)

Patches with review trailers that haven't landed in mainline and haven't been Acked by a maintainer. Oldest first.

• STALE77d REVIEWED: 1 (0M) Re: [PATCH] iommu/amd: Fix a stale comment about which legacy mode is user visible
  2026-04-07 · Wei Wang <hidden> · 1 Reviewed-by
• COOLING12d REVIEWED: 3 (2M) [PATCH v10 6/6] Documentation: Update VFIO NOIOMMU mode
  2026-07-06 · Jacob Pan <hidden> · 2 Reviewed-by

Quiet for 30+ days

Patches with no review trailers and no replies. Either the author is heads-down elsewhere or these slipped through. Oldest first.

• STALE203d [PATCH RFC 02/13] docs: dma-api: document __dma_align_begin/end
  2025-12-30 · "Michael S. Tsirkin" <mst@redhat.com>
• STALE203d [PATCH RFC 04/13] docs: dma-api: document DMA_ATTR_CPU_CACHE_CLEAN
  2025-12-30 · "Michael S. Tsirkin" <mst@redhat.com>
• STALE184d [RFC PATCH v4 33/38] Documentation: PCI: endpoint: pci-epf-vntb: Update and add mwN_offset usage
  2026-01-18 · Koichiro Den <hidden>
• STALE184d [RFC PATCH v4 34/38] Documentation: driver-api: ntb: Document remote embedded-DMA transport
  2026-01-18 · Koichiro Den <hidden>
• STALE76d [PATCH RFC 19/26] treewide: Rename dma_buf_attach() to dma_buf_sgt_attach()
  2026-02-18 · Jason Gunthorpe <jgg@nvidia.com>
• STALE129d [PATCH 2/3] iommu/arm-smmu-v3: Update Arm errata
  2026-02-26 · Robin Murphy <robin.murphy@arm.com>
• STALE136d [PATCH 11/11] Doc: Update VFIO NOIOMMU mode
  2026-02-27 · Jacob Pan <hidden>
• STALE136d [PATCH v2 3/8] dma-mapping: Clarify valid conditions for CPU cache line overlap
  2026-03-11 · Leon Romanovsky <leon@kernel.org>
• STALE129d LANDED [PATCH v3 3/8] dma-mapping: Clarify valid conditions for CPU cache line overlap
  2026-03-16 · Leon Romanovsky <leon@kernel.org>
• STALE102d [RFC PATCH v2 5/5] dma-mapping: Add doc for memory encryption
  2026-03-30 · Mostafa Saleh <smostafa@google.com>