Subject KVM: x86: Cleaning up the KVM clock mess, part 1
Author seanjc@google.com
Date 2026-08-04 23:39:05 +0000 UTC
Version
Cc dongli.zhang@oracle.com dwmw@amazon.co.uk kvm@vger.kernel.org linux-kernel@vger.kernel.org paul@xen.org pbonzini@redhat.com seanjc@google.com
Patches (17)
Name Content [All]
[PATCH v8 01/17] KVM: x86: Update "last guest TSC" snapshot prior to enabling IRQs/preemption [Body]
[PATCH v8 02/17] KVM: x86: Improve accuracy of KVM clock when TSC scaling is in force [Body]
[PATCH v8 03/17] KVM: x86: Explicitly disable TSC scaling without CONSTANT_TSC [Body]
[PATCH v8 04/17] KVM: x86: Activate master clock immediately on vCPU creation [Body]
[PATCH v8 05/17] KVM: x86: Avoid NTP frequency skew for KVM clock on 32-bit host [Body]
[PATCH v8 06/17] KVM: x86: Drop unnecessary CPU pinning when computing/getting kvmclock [Body]
[PATCH v8 07/17] KVM: x86: Move "no master clock" fallback from __get_kvmclock() to get_kvmclock() [Body]
[PATCH v8 08/17] KVM: x86: Wrap all of __get_kvmclock_master_clock() with CONFIG_X86_64=y [Body]
[PATCH v8 09/17] KVM: x86: Fall back to non-master-clock if clockread fails in get_kvmclock() [Body]
[PATCH v8 10/17] KVM: x86: Fix KVM clock precision in get_kvmclock() with TSC scaling [Body]
[PATCH v8 11/17] KVM: x86: Use get_kvmclock() in kvm_get_wall_clock_epoch() [Body]
[PATCH v8 12/17] KVM: x86: Fix compute_guest_tsc() to handle negative time deltas [Body]
[PATCH v8 13/17] KVM: x86: Disable preemption, not IRQs, when getting TSC+freq pair [Body]
[PATCH v8 14/17] KVM: x86: Make master clock logic in guest PV clock updates 64-bit only [Body]
[PATCH v8 15/17] KVM: x86: Upscale TSC to "now", not master clock when updating PV clocks [Body]
[PATCH v8 16/17] KVM: x86: Simplify and comment kvm_get_time_scale() [Body]
[PATCH v8 17/17] KVM: x86: Remove implicit rdtsc() from kvm_compute_l1_tsc_offset() [Body]
Series Summary
Passed
✓ All tests passed. No findings.
Sessions
Session 2026-08-04
Passed
ID (for dev) c271885a-bf2d-4769-810c-77b401deeade
Status finished
Triaged OK [Log] [Trajectory]
Execution Log [Link]
Test Base Patched Verdict
[KASAN] Build Base 2dfab80a305700a45bd947350dae253ba4e30c41 [Config] passed [Log]
[KASAN] Boot test: Base 2dfab80a305700a45bd947350dae253ba4e30c41 [Config] passed [Log]
[KASAN] Build Patched 2dfab80a305700a45bd947350dae253ba4e30c41 [Config] [patched] passed [Log]
[KASAN] Boot test: Patched 2dfab80a305700a45bd947350dae253ba4e30c41 [Config] [patched] passed [Log]
[KASAN] Fuzz 2dfab80a305700a45bd947350dae253ba4e30c41 [Config] 2dfab80a305700a45bd947350dae253ba4e30c41 [Config] [patched] passed [Log] [Artifacts]