kernel virtual machine (kvm) · Supported

Maintainers

• M Paolo Bonzini <pbonzini@redhat.com>

Paths

• F Documentation/virt/kvm/
• F include/asm-generic/kvm*
• F include/kvm/iodev.h
• F include/linux/kvm*
• F include/trace/events/kvm.h
• F include/uapi/asm-generic/kvm*
• F include/uapi/linux/kvm*
• F tools/kvm/
• F tools/testing/selftests/kvm/
• F virt/kvm/*

Last 30 days

Most active threads (last 7 days)

• HOTtoday [PATCH] Documentation: KVM: Fix the GICv5 KVM_IRQ_LINE PPI range
  2026-08-15 09:25 · 0 replies in 7d · Karl Mehltretter <hidden>

Active reviewers (last 30 days)

• Shivank Garg <hidden>
  52 attestations (52 Tested-by) · last on 2026-08-07
• Fuad Tabba <hidden>
  48 attestations (48 Reviewed-by) · last on 2026-08-07
• Sean Christopherson <seanjc@google.com>
  20 attestations (20 Co-developed-by) · last on 2026-08-07
• Gautam Menghani <hidden>
  8 attestations (4 Reviewed-by, 4 Tested-by) · last on 2026-08-08
• Ackerley Tng <hidden>
  4 attestations (4 Co-developed-by) · last on 2026-08-07
• Vishal Annapurve <hidden>
  4 attestations (4 Co-developed-by) · last on 2026-08-07
• Binbin Wu <hidden>
  4 attestations (4 Reviewed-by) · last on 2026-08-07
• Thiago Jung Bauermann <hidden>
  3 attestations (3 Reviewed-by) · last on 2026-08-12
• Anushree Mathur <hidden>
  3 attestations (3 Tested-by) · last on 2026-08-08
• Xiaoyao Li <hidden>
  3 attestations (3 Reviewed-by) · last on 2026-08-07

Recent patches

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

• HOTtoday [PATCH] Documentation: KVM: Fix the GICv5 KVM_IRQ_LINE PPI range
  2026-08-15 · Karl Mehltretter <hidden>
• HOTtoday [PATCH v19 14/14] KVM: selftests: arm64: Add GCS EXLOCK exception emulation test
  2026-08-12 · Mark Brown <broonie@kernel.org>
• HOTtoday [PATCH v19 12/14] KVM: selftests: arm64: Only restore SPSR_EL1 and ELR_EL1 if they change
  2026-08-12 · Mark Brown <broonie@kernel.org>
• HOTtoday [PATCH v19 11/14] KVM: selftests: arm64: Add GCS to set_id_regs
  2026-08-12 · Mark Brown <broonie@kernel.org>
• HOTtoday REVIEWED: 1 (0M) [PATCH v19 10/14] KVM: selftests: arm64: Add GCS registers to get-reg-list
  2026-08-12 · Mark Brown <broonie@kernel.org>
• COOLING9d REVIEWED: 5 (2M) [PATCH v9 4/4] KVM: PPC: Document KVM_PPC_GET_COMPAT_CAPS ioctl
  2026-08-08 · Amit Machhiwal <hidden>
• WARM1d REVIEWED: 2 (0M) [PATCH v10 35/41] KVM: selftests: Test conversion with elevated page refcount
  2026-08-07 · Ackerley Tng <hidden>
• WARM1d REVIEWED: 2 (0M) [PATCH v10 36/41] KVM: selftests: Reset shared memory after hole-punching
  2026-08-07 · Ackerley Tng <hidden>
• WARM1d REVIEWED: 2 (0M) [PATCH v10 37/41] KVM: selftests: Provide function to look up guest_memfd details from gpa
  2026-08-07 · Ackerley Tng <hidden>
• WARM1d REVIEWED: 2 (0M) [PATCH v10 38/41] KVM: selftests: Provide common function to set memory attributes
  2026-08-07 · Ackerley Tng <hidden>
• WARM1d REVIEWED: 2 (0M) [PATCH v10 39/41] KVM: selftests: Make TEST_EXPECT_SIGBUS thread-safe
  2026-08-07 · Ackerley Tng <hidden>
• WARM1d REVIEWED: 2 (0M) [PATCH v10 40/41] KVM: selftests: Update private_mem_conversions_test to mmap() guest_memfd
  2026-08-07 · Ackerley Tng <hidden>
• WARM1d REVIEWED: 2 (0M) [PATCH v10 41/41] KVM: selftests: Update private memory exits test to work with per-gmem attributes
  2026-08-07 · Ackerley Tng <hidden>
• WARM1d REVIEWED: 2 (0M) [PATCH v10 24/41] KVM: selftests: Add support for mmap() on guest_memfd in core library
  2026-08-07 · Ackerley Tng <hidden>
• WARM1d REVIEWED: 2 (0M) [PATCH v10 25/41] KVM: selftests: Add selftests global for guest memory attributes capability
  2026-08-07 · Ackerley Tng <hidden>
• WARM1d REVIEWED: 2 (0M) [PATCH v10 26/41] KVM: selftests: Add helpers for calling ioctls on guest_memfd
  2026-08-07 · Ackerley Tng <hidden>
• WARM1d REVIEWED: 2 (0M) [PATCH v10 27/41] KVM: selftests: Test basic single-page conversion flow
  2026-08-07 · Ackerley Tng <hidden>
• WARM1d REVIEWED: 2 (0M) [PATCH v10 28/41] KVM: selftests: Test conversion flow when INIT_SHARED
  2026-08-07 · Ackerley Tng <hidden>
• WARM1d REVIEWED: 2 (0M) [PATCH v10 29/41] KVM: selftests: Test conversion precision in guest_memfd
  2026-08-07 · Ackerley Tng <hidden>
• WARM1d REVIEWED: 2 (0M) [PATCH v10 30/41] KVM: selftests: Test conversion before allocation
  2026-08-07 · Ackerley Tng <hidden>
• WARM1d REVIEWED: 2 (0M) [PATCH v10 31/41] KVM: selftests: Convert with allocated folios in different layouts
  2026-08-07 · Ackerley Tng <hidden>
• WARM1d REVIEWED: 2 (0M) [PATCH v10 32/41] KVM: selftests: Test that truncation does not change shared/private status
  2026-08-07 · Ackerley Tng <hidden>
• WARM1d REVIEWED: 2 (0M) [PATCH v10 33/41] KVM: selftests: Test that shared/private status is consistent across processes
  2026-08-07 · Ackerley Tng <hidden>
• WARM1d REVIEWED: 2 (0M) [PATCH v10 34/41] KVM: selftests: Add helpers to pin pages with CONFIG_GUP_TEST
  2026-08-07 · Ackerley Tng <hidden>
• WARM1d REVIEWED: 1 (0M) [PATCH v10 17/41] KVM: SEV: Make 'uaddr' parameter optional for KVM_SEV_SNP_LAUNCH_UPDATE
  2026-08-07 · Ackerley Tng <hidden>
• WARM1d REVIEWED: 1 (0M) [PATCH v10 18/41] KVM: TDX: Make source page optional for KVM_TDX_INIT_MEM_REGION
  2026-08-07 · Ackerley Tng <hidden>
• WARM1d REVIEWED: 2 (0M) [PATCH v10 22/41] KVM: selftests: Create gmem fd before "regular" fd when adding memslot
  2026-08-07 · Ackerley Tng <hidden>
• WARM1d REVIEWED: 2 (0M) [PATCH v10 23/41] KVM: selftests: Rename guest_memfd{,_offset} to gmem_{fd,offset}
  2026-08-07 · Ackerley Tng <hidden>
• WARM1d REVIEWED: 3 (0M) [PATCH v10 05/41] KVM: Rename memory attribute APIs to prepare for in-place gmem conversion
  2026-08-07 · Ackerley Tng <hidden>
• WARM1d REVIEWED: 5 (2M) [PATCH v10 10/41] KVM: guest_memfd: Add base support for KVM_SET_MEMORY_ATTRIBUTES2
  2026-08-07 · Ackerley Tng <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.

• STALE86d REVIEWED: 1 (1M) [PATCH v10 27/30] KVM: arm64: selftests: Remove spurious check for single bit safe values
  2026-03-06 · Mark Brown <broonie@kernel.org> · 1 Reviewed-by
• STALE90d REVIEWED: 2 (2M) [PATCH v4 05/30] KVM: selftests: Add KVM/PV clock selftest to prove timer correction
  2026-05-09 · David Woodhouse <dwmw2@infradead.org> · 1 Reviewed-by
• STALE90d REVIEWED: 2 (2M) [PATCH v4 04/30] KVM: x86: Add KVM_[GS]ET_CLOCK_GUEST for accurate KVM clock migration
  2026-05-09 · David Woodhouse <dwmw2@infradead.org> · 1 Reviewed-by
• STALE90d REVIEWED: 2 (2M) [PATCH v4 07/30] KVM: x86: Add KVM_VCPU_TSC_SCALE and fix the documentation on TSC migration
  2026-05-09 · David Woodhouse <dwmw2@infradead.org> · 1 Reviewed-by
• HOTtoday REVIEWED: 1 (0M) [PATCH AUTOSEL 7.0-6.12] Documentation: kvm: update links in the references section of AMD Memory Encryption
  2026-05-20 · Sasha Levin <sashal@kernel.org> · 1 Reviewed-by
• STALE71d REVIEWED: 1 (0M) [PATCH v3 5/5] KVM: PPC: Document KVM_PPC_GET_COMPAT_CAPS ioctl
  2026-05-22 · Amit Machhiwal <hidden> · 1 Tested-by
• COLD56d REVIEWED: 1 (0M) [PATCH v7 02/42] KVM: Rename KVM_GENERIC_MEMORY_ATTRIBUTES to KVM_VM_MEMORY_ATTRIBUTES
  2026-05-23 · Ackerley Tng <hidden> · 1 Reviewed-by
• COLD56d REVIEWED: 1 (0M) [PATCH v7 13/42] KVM: guest_memfd: Advertise KVM_SET_MEMORY_ATTRIBUTES2 ioctl
  2026-05-23 · Ackerley Tng <hidden> · 1 Reviewed-by
• COLD56d REVIEWED: 1 (0M) [PATCH v7 22/42] KVM: selftests: Create gmem fd before "regular" fd when adding memslot
  2026-05-23 · Ackerley Tng <hidden> · 1 Reviewed-by
• COLD56d REVIEWED: 1 (0M) [PATCH v7 23/42] KVM: selftests: Rename guest_memfd{,_offset} to gmem_{fd,offset}
  2026-05-23 · Ackerley Tng <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.

• DORMANTno replies [PATCH v2] KVM: Add KVM_GET_REG_LIST ioctl for LoongArch
  2026-01-26 · Zixing Liu <hidden>
• STALE167d [PATCH v10 11/15] KVM: selftests: set KVM_MEM_GUEST_MEMFD in vm_mem_add() if guest_memfd != -1
  2026-01-26 · Kalyazin, Nikita <hidden>
• STALE167d [PATCH v10 10/15] KVM: selftests: load elf via bounce buffer
  2026-01-26 · Kalyazin, Nikita <hidden>
• STALE167d [PATCH v10 13/15] KVM: selftests: cover GUEST_MEMFD_FLAG_NO_DIRECT_MAP in existing selftests
  2026-01-26 · Kalyazin, Nikita <hidden>
• STALE167d [PATCH v10 12/15] KVM: selftests: Add guest_memfd based vm_mem_backing_src_types
  2026-01-26 · Kalyazin, Nikita <hidden>
• STALE167d [PATCH v10 15/15] KVM: selftests: Test guest execution from direct map removed gmem
  2026-01-26 · Kalyazin, Nikita <hidden>
• STALE167d [PATCH v10 14/15] KVM: selftests: stuff vm_mem_backing_src_type into vm_shape
  2026-01-26 · Kalyazin, Nikita <hidden>
• STALE160d [RFC PATCH v2 02/37] KVM: Rename KVM_GENERIC_MEMORY_ATTRIBUTES to KVM_VM_MEMORY_ATTRIBUTES
  2026-02-02 · Ackerley Tng <hidden>
• STALE160d [RFC PATCH v2 13/37] KVM: selftests: Create gmem fd before "regular" fd when adding memslot
  2026-02-02 · Ackerley Tng <hidden>
• STALE160d [RFC PATCH v2 14/37] KVM: selftests: Rename guest_memfd{,_offset} to gmem_{fd,offset}
  2026-02-02 · Ackerley Tng <hidden>