vmware hypervisor interface · Supported

Maintainers

• M Ajay Kaher <ajay.kaher@broadcom.com>
• M Alexey Makhalov <alexey.makhalov@broadcom.com>
• R Broadcom internal kernel review list <bcm-kernel-feedback-list@broadcom.com>

Paths

• F arch/x86/include/asm/vmware.h
• F arch/x86/kernel/cpu/vmware.c

Last 30 days

Active reviewers (last 30 days)

• Michael Kelley <hidden>
  4 attestations (2 Reviewed-by, 2 Tested-by) · last on 2026-05-15
• David Woodhouse <hidden>
  1 attestation (1 Reviewed-by) · last on 2026-05-29

Recent patches

Most-recent 24 patches in this subsystem on linux-coco, ordered by date desc.

• WARM2d REVIEWED: 1 (0M) [PATCH v4 33/47] x86/paravirt: Pass sched_clock save/restore helpers during registration
  2026-05-29 · Sean Christopherson <seanjc@google.com>
• WARM2d [PATCH v4 31/47] x86/vmware: NOP-ify save/restore hooks when using VMware's sched_clock
  2026-05-29 · Sean Christopherson <seanjc@google.com>
• WARM2d [PATCH v4 10/47] x86/tsc: Consolidate forcing of X86_FEATURE_TSC_KNOWN_FREQ for PV code
  2026-05-29 · Sean Christopherson <seanjc@google.com>
• WARM2d [PATCH v4 08/47] x86/tsc: Add dedicated hypervisor hooks for getting known TSC/CPU frequencies
  2026-05-29 · Sean Christopherson <seanjc@google.com>
• COLD15d REVIEWED: 2 (0M) [PATCH v3 31/41] x86/tsc: Pass KNOWN_FREQ and RELIABLE as params to registration
  2026-05-15 · Sean Christopherson <seanjc@google.com>
• COLD15d [PATCH v3 18/41] x86/paravirt: Pass sched_clock save/restore helpers during registration
  2026-05-15 · Sean Christopherson <seanjc@google.com>
• COLD15d [PATCH v3 16/41] x86/vmware: Nullify save/restore hooks when using VMware's sched_clock
  2026-05-15 · Sean Christopherson <seanjc@google.com>
• COLD15d REVIEWED: 2 (0M) [PATCH v3 02/41] x86/tsc: Add helper to register CPU and TSC freq calibration routines
  2026-05-15 · Sean Christopherson <seanjc@google.com>
• COLD24d [PATCH v2 4/4] x86/vmware: Support steal time clock for encrypted guests
  2026-03-10 · Alexey Makhalov <alexey.makhalov@broadcom.com>
• COLD24d [PATCH v2 3/4] x86/vmware: Report guest crash to the hypervisor
  2026-03-10 · Alexey Makhalov <alexey.makhalov@broadcom.com>
• COLD24d [PATCH v2 2/4] x86/vmware: Log kmsg dump on panic
  2026-03-10 · Alexey Makhalov <alexey.makhalov@broadcom.com>
• COLD24d [PATCH v2 1/4] x86/vmware: Introduce common vmware_hypercall()
  2026-03-10 · Alexey Makhalov <alexey.makhalov@broadcom.com>
• COLD24d [PATCH 4/4] x86/vmware: Support steal time clock for encrypted guests
  2026-03-07 · Alexey Makhalov <alexey.makhalov@broadcom.com>
• COLD24d [PATCH 3/4] x86/vmware: Report guest crash to the hypervisor
  2026-03-07 · Alexey Makhalov <alexey.makhalov@broadcom.com>
• COLD24d [PATCH 2/4] x86/vmware: Log kmsg dump on panic
  2026-03-07 · Alexey Makhalov <alexey.makhalov@broadcom.com>
• COLD24d [PATCH 1/4] x86/vmware: Introduce common vmware_hypercall()
  2026-03-07 · Alexey Makhalov <alexey.makhalov@broadcom.com>
• STALE464d [PATCH v2 31/38] x86/tsc: Pass KNOWN_FREQ and RELIABLE as params to registration
  2025-02-27 · Sean Christopherson <seanjc@google.com>
• STALE464d [PATCH v2 18/38] x86/paravirt: Pass sched_clock save/restore helpers during registration
  2025-02-27 · Sean Christopherson <seanjc@google.com>
• STALE464d [PATCH v2 16/38] x86/vmware: Nullify save/restore hooks when using VMware's sched_clock
  2025-02-27 · Sean Christopherson <seanjc@google.com>
• STALE464d [PATCH v2 03/38] x86/tsc: Add helper to register CPU and TSC freq calibration routines
  2025-02-27 · Sean Christopherson <seanjc@google.com>
• STALE484d [PATCH 08/16] x86/tsc: Pass KNOWN_FREQ and RELIABLE as params to registration
  2025-02-01 · Sean Christopherson <seanjc@google.com>
• STALE484d [PATCH 03/16] x86/tsc: Add helper to register CPU and TSC freq calibration routines
  2025-02-01 · Sean Christopherson <seanjc@google.com>
• STALE678d [PATCH v2 2/2] x86/vmware: VMware support for TDX userspace hypercalls
  2024-07-26 · Tim Merrifield <hidden>
• STALE689d [PATCH 2/2] x86/vmware: VMware support for TDX userspace hypercalls
  2024-07-03 · Tim Merrifield <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.

• COLD15d REVIEWED: 2 (0M) [PATCH v3 02/41] x86/tsc: Add helper to register CPU and TSC freq calibration routines
  2026-05-15 · Sean Christopherson <seanjc@google.com> · 1 Reviewed-by, 1 Tested-by