risc-v architecture · Supported

Maintainers

• M Paul Walmsley <pjw@kernel.org>
• M Palmer Dabbelt <palmer@dabbelt.com>
• M Albert Ou <aou@eecs.berkeley.edu>
• R Alexandre Ghiti <alex@ghiti.fr>

Paths

• F arch/riscv/

Last 30 days

Most active threads (last 7 days)

• WARM2d [PATCH v5 0/8] riscv: Add Ssqosid and initial CBQRI resctrl support
  2026-07-15 00:23 · 3 replies in 7d · Drew Fustini <fustini@kernel.org>
• WARM2d [RFC PATCH 0/7] riscv: iommu: Add QoS ID support for resctrl device assignment
  2026-07-14 13:08 · 2 replies in 7d · Zhanpeng Zhang <hidden>

Active reviewers (last 30 days)

• Mike Rapoport (Microsoft) <rppt@kernel.org>
  14 attestations (6 Acked-by, 8 Reviewed-by) · last on 2026-07-08
• SeongJae Park <sj@kernel.org>
  12 attestations (4 Acked-by, 8 Reviewed-by) · last on 2026-07-08
• Kornel Dulęba <hidden>
  10 attestations (10 Co-developed-by) · last on 2026-07-15
• Adrien Ricciardi <hidden>
  5 attestations (5 Co-developed-by) · last on 2026-07-15
• Conor Dooley <conor.dooley@microchip.com>
  3 attestations (3 Reviewed-by) · last on 2026-07-01
• Charlie Jenkins <hidden>
  2 attestations (1 Reviewed-by, 1 Tested-by) · last on 2026-07-01
• Anup Patel <anup@brainfault.org>
  2 attestations (1 Acked-by, 1 Reviewed-by) · last on 2026-07-01
• Baoquan He <hidden>
  2 attestations (2 Acked-by) · last on 2026-06-29
• Quan Zhou <hidden>
  1 attestation (1 Co-developed-by) · last on 2026-07-09
• Inochi Amaoto <inochiama@gmail.com>
  1 attestation (1 Acked-by) · last on 2026-07-01

Recent patches

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

• WARM2d [PATCH v5 5/8] riscv_cbqri: resctrl: Add cache allocation via capacity block mask
  2026-07-15 · Drew Fustini <fustini@kernel.org>
• WARM2d [PATCH v5 2/8] riscv: Detect the Ssqosid extension
  2026-07-15 · Drew Fustini <fustini@kernel.org>
• WARM2d [PATCH v5 3/8] riscv: Add support for srmcfg CSR from Ssqosid extension
  2026-07-15 · Drew Fustini <fustini@kernel.org>
• WARM2d [RFC PATCH 6/7] riscv_cbqri: Assign IOMMU groups to resource groups
  2026-07-14 · Zhanpeng Zhang <hidden>
• WARM2d [RFC PATCH 4/7] iommu/riscv: Program QoS IDs for assigned groups
  2026-07-14 · Zhanpeng Zhang <hidden>
• COOLING8d [PATCH] RISC-V: KVM: Add kvm-riscv.wfi_trap_policy to control VS-mode WFI trapping
  2026-07-09 · Yuhang.chen <hidden>
• COOLING8d IN LINUX-NEXT: 12 (12M) [PATCH v10 03/15] mm: rename uffd-wp PTE accessors to uffd
  2026-07-08 · Kiryl Shutsemau <hidden>
• COOLING8d IN LINUX-NEXT: 12 (12M) [PATCH v10 02/15] mm: rename uffd-wp PTE bit macros to uffd
  2026-07-08 · Kiryl Shutsemau <hidden>
• COOLING8d IN LINUX-NEXT: 12 (12M) [PATCH v10 01/15] mm: decouple protnone helpers from CONFIG_NUMA_BALANCING
  2026-07-08 · Kiryl Shutsemau <hidden>
• COOLING4d [PATCH v4 5/8] riscv_cbqri: resctrl: Add cache allocation via capacity block mask
  2026-07-06 · Drew Fustini <fustini@kernel.org>
• COOLING4d [PATCH v4 2/8] riscv: Detect the Ssqosid extension
  2026-07-06 · Drew Fustini <fustini@kernel.org>
• COOLING4d [PATCH v4 3/8] riscv: Add support for srmcfg CSR from Ssqosid extension
  2026-07-06 · Drew Fustini <fustini@kernel.org>
• COOLING11d REVIEWED: 12 (12M) [PATCH v9 03/15] mm: rename uffd-wp PTE accessors to uffd
  2026-07-06 · Kiryl Shutsemau <hidden>
• COOLING11d REVIEWED: 12 (12M) [PATCH v9 02/15] mm: rename uffd-wp PTE bit macros to uffd
  2026-07-06 · Kiryl Shutsemau <hidden>
• COOLING11d REVIEWED: 12 (12M) [PATCH v9 01/15] mm: decouple protnone helpers from CONFIG_NUMA_BALANCING
  2026-07-06 · Kiryl Shutsemau <hidden>
• COOLING13d REVIEWED: 12 (12M) [PATCH v8 03/15] mm: rename uffd-wp PTE accessors to uffd
  2026-07-03 · Kiryl Shutsemau <hidden>
• COOLING13d REVIEWED: 12 (12M) [PATCH v8 02/15] mm: rename uffd-wp PTE bit macros to uffd
  2026-07-03 · Kiryl Shutsemau <hidden>
• COOLING13d REVIEWED: 12 (12M) [PATCH v8 01/15] mm: decouple protnone helpers from CONFIG_NUMA_BALANCING
  2026-07-03 · Kiryl Shutsemau <hidden>
• COOLING11d [RFC] entry: Untangle the return value of syscall_enter_from_user_mode from syscall NR
  2026-07-01 · Michal Suchánek <hidden>
• COOLING9d [PATCH v5 17/17] riscv: hwprobe: Introduce rva23u64 base behavior
  2026-07-01 · Guodong Xu <hidden>
• COOLING9d [PATCH v5 16/17] riscv: cpu: Output isa bases lines in cpuinfo
  2026-07-01 · Guodong Xu <hidden>
• COOLING9d [PATCH v5 15/17] riscv: cpufeature: Introduce ISA bases bitmap and rva23u64 detection
  2026-07-01 · Guodong Xu <hidden>
• COOLING9d [PATCH v5 14/17] riscv: Add a getter for user PMLEN support
  2026-07-01 · Guodong Xu <hidden>
• COOLING9d REVIEWED: 2 (2M) [PATCH v5 13/17] riscv: dts: sophgo: sg2044: Add Zic64b ISA extension
  2026-07-01 · Guodong Xu <hidden>
• COOLING9d [PATCH v5 12/17] riscv: dts: spacemit: k1: Add Zic64b ISA extension
  2026-07-01 · Guodong Xu <hidden>
• COOLING9d REVIEWED: 1 (1M) [PATCH v5 11/17] riscv: dts: spacemit: k3: Add Zic64b ISA extension
  2026-07-01 · Guodong Xu <hidden>
• COOLING9d REVIEWED: 4 (3M) [PATCH v5 10/17] riscv: Add Zic64b to cpufeature and hwprobe
  2026-07-01 · Guodong Xu <hidden>
• COOLING9d REVIEWED: 3 (3M) [PATCH v5 07/17] riscv: Add B to hwcap and hwprobe
  2026-07-01 · Guodong Xu <hidden>
• COOLING9d REVIEWED: 1 (0M) [PATCH v5 06/17] riscv: Add Ziccamoa, Ziccif, Ziccrse, and Za64rs to cpufeature and hwprobe
  2026-07-01 · Guodong Xu <hidden>
• COOLING9d REVIEWED: 6 (3M) [PATCH v5 05/17] riscv: Add Zicclsm to cpufeature and hwprobe
  2026-07-01 · Guodong Xu <hidden>

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.

• STALE132d REVIEWED: 1 (0M) [PATCH v10 02/15] set_memory: add folio_{zap,restore}_direct_map helpers
  2026-01-26 · Kalyazin, Nikita <hidden> · 1 Reviewed-by
• COLD50d REVIEWED: 2 (2M) [PATCH v14 01/17] riscv: kexec_file: Fix crashk_low_res not exclude bug
  2026-05-25 · Jinjie Ruan <hidden> · 1 Reviewed-by
• COOLING9d REVIEWED: 1 (0M) [PATCH v5 06/17] riscv: Add Ziccamoa, Ziccif, Ziccrse, and Za64rs to cpufeature and hwprobe
  2026-07-01 · Guodong Xu <hidden> · 1 Reviewed-by
• COOLING9d REVIEWED: 1 (1M) [PATCH v5 11/17] riscv: dts: spacemit: k3: Add Zic64b ISA extension
  2026-07-01 · Guodong Xu <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.

• STALE195d [PATCH 15/28] riscv: introduce arch_zone_limits_init()
  2025-12-28 · Mike Rapoport <rppt@kernel.org>
• STALE195d [PATCH 22/28] arch, mm: consolidate initialization of nodes, zones and memory map
  2025-12-28 · Mike Rapoport <rppt@kernel.org>
• STALE195d [PATCH 23/28] arch, mm: consolidate initialization of SPARSE memory model
  2025-12-28 · Mike Rapoport <rppt@kernel.org>
• STALE195d [PATCH 26/28] mm, arch: consolidate hugetlb CMA reservation
  2025-12-28 · Mike Rapoport <rppt@kernel.org>
• STALE147d [PATCH v2 15/28] riscv: introduce arch_zone_limits_init()
  2026-01-02 · Mike Rapoport <rppt@kernel.org>
• STALE147d [PATCH v2 23/28] arch, mm: consolidate initialization of SPARSE memory model
  2026-01-02 · Mike Rapoport <rppt@kernel.org>
• STALE147d [PATCH v2 26/28] mm, arch: consolidate hugetlb CMA reservation
  2026-01-02 · Mike Rapoport <rppt@kernel.org>
• STALE129d [PATCH v3 16/29] riscv: introduce arch_zone_limits_init()
  2026-01-11 · Mike Rapoport <rppt@kernel.org>
• STALE129d [PATCH v3 27/29] mm, arch: consolidate hugetlb CMA reservation
  2026-01-11 · Mike Rapoport <rppt@kernel.org>
• DORMANTno replies [PATCH] riscv: kexec: Add support for crashkernel CMA reservation
  2026-01-26 · Jinjie Ruan <hidden>