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 v8 0/6] iommufd: Enable noiommu mode for cdev
  2026-06-03 22:02 · 1 reply in 7d · Jacob Pan <hidden>
• HOTtoday [PATCH v7 0/6] iommufd: Enable noiommu mode for cdev
  2026-06-03 05:44 · 1 reply in 7d · Jacob Pan <hidden>

Active reviewers (last 30 days)

• Yi Liu <hidden>
  2 attestations (2 Reviewed-by) · last on 2026-06-03
• Ross Philipson <hidden>
  2 attestations (2 Co-developed-by) · last on 2026-05-15
• Kevin Tian <kevin.tian@intel.com>
  1 attestation (1 Reviewed-by) · last on 2026-06-03
• Robin Murphy <robin.murphy@arm.com>
  1 attestation (1 Suggested-by) · last on 2026-05-25

Recent patches

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

• DORMANTno replies REVIEWED: 3 (2M) [PATCH v8 6/6] Documentation: Update VFIO NOIOMMU mode
  2026-06-03 · Jacob Pan <hidden>
• HOTtoday REVIEWED: 1 (0M) [PATCH v7 6/6] Documentation: Update VFIO NOIOMMU mode
  2026-06-03 · Jacob Pan <hidden>
• COOLING7d IN LINUX-NEXT [PATCH] dma-contiguous: simplify numa cma area handling
  2026-05-25 · Feng Tang <hidden>
• WARM1d [PATCH v6 7/7] Documentation: Update VFIO NOIOMMU mode
  2026-05-21 · Jacob Pan <hidden>
• HOTtoday [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>
• COOLING14d [PATCH v16 38/38] x86/boot: Legacy boot DRTM support for Secure Launch
  2026-05-15 · Ross Philipson <hidden>
• COOLING14d [PATCH v16 15/38] Documentation/security: Secure Launch kernel documentation
  2026-05-15 · Ross Philipson <hidden>
• COOLING13d [PATCH v5 9/9] Documentation: Update VFIO NOIOMMU mode
  2026-05-11 · Jacob Pan <hidden>
• COLD21d [PATCH v6 25/25] KVM: arm64: Add documentation for pKVM DMA isolation
  2026-05-01 · Mostafa Saleh <smostafa@google.com>
• COLD21d [PATCH v6 09/25] KVM: arm64: iommu: Add memory pool
  2026-05-01 · Mostafa Saleh <smostafa@google.com>
• COLD27d [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>
• COLD30d [PATCH v4 11/11] Documentation: PCI: Add documentation for Live Update
  2026-04-23 · David Matlack <dmatlack@google.com>
• COLD30d [PATCH v4 05/11] PCI: liveupdate: Inherit bus numbers during Live Update
  2026-04-23 · David Matlack <dmatlack@google.com>
• COLD41d [PATCH 4/4] iommu/amd: Introduce boot option ivmd=seg:bus:dev.fun,start,size,flags
  2026-04-20 · Suravee Suthikulpanit <suravee.suthikulpanit@amd.com>
• COLD28d [PATCH V4 10/10] Documentation: Update VFIO NOIOMMU mode
  2026-04-14 · Jacob Pan <hidden>
• COLD24d REVIEWED: 1 (0M) Re: [PATCH] iommu/amd: Fix a stale comment about which legacy mode is user visible
  2026-04-07 · Wei Wang <hidden>
• COLD55d LANDED: 1 (1M) [PATCH v2] dma-buf: heaps: system: document system_cc_shared heap
  2026-04-07 · Jiri Pirko <jiri@resnulli.us>
• COLD51d [PATCH V3 10/10] Documentation: Update VFIO NOIOMMU mode
  2026-04-03 · Jacob Pan <hidden>
• COLD58d [PATCH] dma-buf: heaps: system: document system_cc_shared heap
  2026-04-02 · Jiri Pirko <jiri@resnulli.us>
• COLD49d [RFC PATCH v2 5/5] dma-mapping: Add doc for memory encryption
  2026-03-30 · Mostafa Saleh <smostafa@google.com>
• STALE65d [PATCH] iommu/amd: add amd_iommu=relax_unity option for VFIO passthrough
  2026-03-28 · Christos Longros <hidden>
• STALE71d [PATCH v2] iommu/arm-smmu-v3: Update Arm errata
  2026-03-19 · Robin Murphy <robin.murphy@arm.com>
• STALE76d LANDED [PATCH v3 3/8] dma-mapping: Clarify valid conditions for CPU cache line overlap
  2026-03-16 · Leon Romanovsky <leon@kernel.org>
• STALE76d LANDED [PATCH v3 4/8] dma-mapping: Introduce DMA require coherency attribute
  2026-03-16 · Leon Romanovsky <leon@kernel.org>
• STALE63d [PATCH V2 11/11] Doc: Update VFIO NOIOMMU mode
  2026-03-12 · Jacob Pan <hidden>
• STALE83d [PATCH v2 4/8] dma-mapping: Introduce DMA require coherency attribute
  2026-03-11 · Leon Romanovsky <leon@kernel.org>
• STALE83d [PATCH v2 3/8] dma-mapping: Clarify valid conditions for CPU cache line overlap
  2026-03-11 · Leon Romanovsky <leon@kernel.org>
• STALE85d [PATCH 2/3] dma-mapping: Clarify valid conditions for CPU cache line overlap
  2026-03-07 · Leon Romanovsky <leon@kernel.org>
• STALE83d [PATCH 11/11] Doc: Update VFIO NOIOMMU mode
  2026-02-27 · Jacob Pan <hidden>
• STALE76d [PATCH 2/3] iommu/arm-smmu-v3: Update Arm errata
  2026-02-26 · Robin Murphy <robin.murphy@arm.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.

• COLD24d 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

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.

• STALE169d [PATCH v5 10/27] KVM: arm64: iommu: Add memory pool
  2025-11-17 · Mostafa Saleh <smostafa@google.com>
• STALE196d Re: [PATCH v8 05/11] PCI/P2PDMA: Document DMABUF model
  2025-11-19 · Leon Romanovsky <leon@kernel.org>
• STALE152d LANDED [PATCH v9 05/11] PCI/P2PDMA: Document DMABUF model
  2025-11-20 · Leon Romanovsky <leon@kernel.org>
• STALE150d [PATCH RFC 02/13] docs: dma-api: document __dma_align_begin/end
  2025-12-30 · "Michael S. Tsirkin" <mst@redhat.com>
• STALE150d [PATCH RFC 04/13] docs: dma-api: document DMA_ATTR_CPU_CACHE_CLEAN
  2025-12-30 · "Michael S. Tsirkin" <mst@redhat.com>
• STALE131d [RFC PATCH v4 33/38] Documentation: PCI: endpoint: pci-epf-vntb: Update and add mwN_offset usage
  2026-01-18 · Koichiro Den <hidden>
• STALE131d [RFC PATCH v4 34/38] Documentation: driver-api: ntb: Document remote embedded-DMA transport
  2026-01-18 · Koichiro Den <hidden>
• COLD23d [PATCH RFC 19/26] treewide: Rename dma_buf_attach() to dma_buf_sgt_attach()
  2026-02-18 · Jason Gunthorpe <jgg@nvidia.com>
• STALE76d [PATCH 2/3] iommu/arm-smmu-v3: Update Arm errata
  2026-02-26 · Robin Murphy <robin.murphy@arm.com>
• STALE83d [PATCH 11/11] Doc: Update VFIO NOIOMMU mode
  2026-02-27 · Jacob Pan <hidden>