Syzbot CI

Subject	Cleaning up the KVM clock mess
Author	dwmw2@infradead.org
Date	2026-06-08 14:47:42 +0000 UTC
Version
Cc	boris.ostrovsky@oracle.com bp@alien8.de corbet@lwn.net dave.hansen@linux.intel.com dongli.zhang@oracle.com dwmw2@infradead.org hpa@zytor.com jalliste@amazon.com jgross@suse.com jic23@kernel.org joe.jin@oracle.com joey.gouly@arm.com kvm@vger.kernel.org linux-doc@vger.kernel.org linux-kernel@vger.kernel.org linux-kselftest@vger.kernel.org maz@kernel.org mingo@redhat.com paul@xen.org pbonzini@redhat.com sascha.bischoff@arm.com seanjc@google.com skhan@linuxfoundation.org tglx@kernel.org vkuznets@redhat.com x86@kernel.org xen-devel@lists.xenproject.org

Subject

Author

dwmw2@infradead.org

Date

2026-06-08 14:47:42 +0000 UTC

Version

boris.ostrovsky@oracle.com bp@alien8.de corbet@lwn.net dave.hansen@linux.intel.com dongli.zhang@oracle.com dwmw2@infradead.org hpa@zytor.com jalliste@amazon.com jgross@suse.com jic23@kernel.org joe.jin@oracle.com joey.gouly@arm.com kvm@vger.kernel.org linux-doc@vger.kernel.org linux-kernel@vger.kernel.org linux-kselftest@vger.kernel.org maz@kernel.org mingo@redhat.com paul@xen.org pbonzini@redhat.com sascha.bischoff@arm.com seanjc@google.com skhan@linuxfoundation.org tglx@kernel.org vkuznets@redhat.com x86@kernel.org xen-devel@lists.xenproject.org

Name	Content [All]
[PATCH v5 01/34] KVM: x86/xen: Do not corrupt KVM clock in kvm_xen_shared_info_init()	[Body]
[PATCH v5 02/34] KVM: x86: Improve accuracy of KVM clock when TSC scaling is in force	[Body]
[PATCH v5 03/34] UAPI: x86: Move pvclock-abi to UAPI for x86 platforms	[Body]
[PATCH v5 04/34] KVM: x86: Add KVM_[GS]ET_CLOCK_GUEST for accurate KVM clock migration	[Body]
[PATCH v5 05/34] KVM: selftests: Add KVM/PV clock selftest to prove timer correction	[Body]
[PATCH v5 06/34] KVM: x86: Explicitly disable TSC scaling without CONSTANT_TSC	[Body]
[PATCH v5 07/34] KVM: x86: Activate master clock immediately on vCPU creation	[Body]
[PATCH v5 08/34] KVM: x86: Add KVM_VCPU_TSC_SCALE and fix the documentation on TSC migration	[Body]
[PATCH v5 09/34] KVM: x86: Avoid NTP frequency skew for KVM clock on 32-bit host	[Body]
[PATCH v5 10/34] KVM: x86: Fold __get_kvmclock() into get_kvmclock()	[Body]
[PATCH v5 11/34] KVM: x86: Restructure get_kvmclock()	[Body]
[PATCH v5 12/34] KVM: x86: Fix KVM clock precision in get_kvmclock() with TSC scaling	[Body]
[PATCH v5 13/34] KVM: x86: Use get_kvmclock() in kvm_get_wall_clock_epoch()	[Body]
[PATCH v5 14/34] KVM: x86: Fix compute_guest_tsc() to handle negative time deltas	[Body]
[PATCH v5 15/34] KVM: x86: Restructure kvm_guest_time_update() for TSC upscaling	[Body]
[PATCH v5 16/34] KVM: x86: Simplify and comment kvm_get_time_scale()	[Body]
[PATCH v5 17/34] KVM: x86: Remove implicit rdtsc() from kvm_compute_l1_tsc_offset()	[Body]
[PATCH v5 18/34] KVM: x86: Improve synchronization in kvm_synchronize_tsc()	[Body]
[PATCH v5 19/34] KVM: x86: Kill last_tsc_{nsec,write,offset} fields	[Body]
[PATCH v5 20/34] KVM: x86: Replace nr_vcpus_matched_tsc count with all_vcpus_matched_tsc bool	[Body]
[PATCH v5 21/34] KVM: x86: Allow KVM master clock mode when TSCs are offset from each other	[Body]
[PATCH v5 22/34] KVM: selftests: Add master clock offset test	[Body]
[PATCH v5 23/34] KVM: x86: Factor out kvm_use_master_clock()	[Body]
[PATCH v5 24/34] KVM: x86: Avoid gratuitous global clock updates	[Body]
[PATCH v5 25/34] KVM: x86/xen: Prevent runstate times from becoming negative	[Body]
[PATCH v5 26/34] KVM: x86: Avoid redundant masterclock updates from multiple vCPUs	[Body]
[PATCH v5 27/34] KVM: x86: Remove runtime Xen TSC frequency CPUID update	[Body]
[PATCH v5 28/34] KVM: selftests: Add Xen/generic CPUID timing leaf test	[Body]
[PATCH v5 29/34] KVM: x86: Re-synchronize TSC after KVM_SET_TSC_KHZ	[Body]
[PATCH v5 30/34] KVM: selftests: Add Xen runstate migration test	[Body]
[PATCH v5 31/34] KVM: x86: Use ktime_get_snapshot_id() for master clock	[Body]
[PATCH v5 32/34] KVM: x86: Compute kvmclock base without pvclock_gtod_data	[Body]
[PATCH v5 33/34] KVM: x86: Replace pvclock_gtod_data vclock_mode with boolean	[Body]
[PATCH v5 34/34] KVM: x86: Remove pvclock_gtod_data and private timekeeping code	[Body]

Name

Content [All]

[PATCH v5 01/34] KVM: x86/xen: Do not corrupt KVM clock in kvm_xen_shared_info_init()

[PATCH v5 02/34] KVM: x86: Improve accuracy of KVM clock when TSC scaling is in force

[PATCH v5 03/34] UAPI: x86: Move pvclock-abi to UAPI for x86 platforms

[PATCH v5 04/34] KVM: x86: Add KVM_[GS]ET_CLOCK_GUEST for accurate KVM clock migration

[PATCH v5 05/34] KVM: selftests: Add KVM/PV clock selftest to prove timer correction

[PATCH v5 06/34] KVM: x86: Explicitly disable TSC scaling without CONSTANT_TSC

[PATCH v5 07/34] KVM: x86: Activate master clock immediately on vCPU creation

[PATCH v5 08/34] KVM: x86: Add KVM_VCPU_TSC_SCALE and fix the documentation on TSC migration

[PATCH v5 09/34] KVM: x86: Avoid NTP frequency skew for KVM clock on 32-bit host

[PATCH v5 10/34] KVM: x86: Fold __get_kvmclock() into get_kvmclock()

[PATCH v5 11/34] KVM: x86: Restructure get_kvmclock()

[PATCH v5 12/34] KVM: x86: Fix KVM clock precision in get_kvmclock() with TSC scaling

[PATCH v5 13/34] KVM: x86: Use get_kvmclock() in kvm_get_wall_clock_epoch()

[PATCH v5 14/34] KVM: x86: Fix compute_guest_tsc() to handle negative time deltas

[PATCH v5 15/34] KVM: x86: Restructure kvm_guest_time_update() for TSC upscaling

[PATCH v5 16/34] KVM: x86: Simplify and comment kvm_get_time_scale()

[PATCH v5 17/34] KVM: x86: Remove implicit rdtsc() from kvm_compute_l1_tsc_offset()

[PATCH v5 18/34] KVM: x86: Improve synchronization in kvm_synchronize_tsc()

[PATCH v5 19/34] KVM: x86: Kill last_tsc_{nsec,write,offset} fields

[PATCH v5 20/34] KVM: x86: Replace nr_vcpus_matched_tsc count with all_vcpus_matched_tsc bool

[PATCH v5 21/34] KVM: x86: Allow KVM master clock mode when TSCs are offset from each other

[PATCH v5 22/34] KVM: selftests: Add master clock offset test

[PATCH v5 23/34] KVM: x86: Factor out kvm_use_master_clock()

[PATCH v5 24/34] KVM: x86: Avoid gratuitous global clock updates

[PATCH v5 25/34] KVM: x86/xen: Prevent runstate times from becoming negative

[PATCH v5 26/34] KVM: x86: Avoid redundant masterclock updates from multiple vCPUs

[PATCH v5 27/34] KVM: x86: Remove runtime Xen TSC frequency CPUID update

[PATCH v5 28/34] KVM: selftests: Add Xen/generic CPUID timing leaf test

[PATCH v5 29/34] KVM: x86: Re-synchronize TSC after KVM_SET_TSC_KHZ

[PATCH v5 30/34] KVM: selftests: Add Xen runstate migration test

[PATCH v5 31/34] KVM: x86: Use ktime_get_snapshot_id() for master clock

[PATCH v5 32/34] KVM: x86: Compute kvmclock base without pvclock_gtod_data

[PATCH v5 33/34] KVM: x86: Replace pvclock_gtod_data vclock_mode with boolean

[PATCH v5 34/34] KVM: x86: Remove pvclock_gtod_data and private timekeeping code

Session 2026-06-08

Passed

ID (for dev)	534dec9b-76bf-4fd5-823f-24ca242fd44d
Status	finished
Triaged	OK [Log]
Execution Log	[Link]

Test	Base	Patched	Verdict
[KASAN] Build Base	bc484a5096732cd858771cccd3164ec985bdc03d [Config]		passed [Log]
[KASAN] Boot test: Base	bc484a5096732cd858771cccd3164ec985bdc03d [Config]		passed [Log]
[KASAN] Build Patched		bc484a5096732cd858771cccd3164ec985bdc03d [Config] [patched]	passed [Log]
[KASAN] Boot test: Patched		bc484a5096732cd858771cccd3164ec985bdc03d [Config] [patched]	passed [Log]
[KASAN] Fuzz	bc484a5096732cd858771cccd3164ec985bdc03d [Config]	bc484a5096732cd858771cccd3164ec985bdc03d [Config] [patched]	passed [Log] [Artifacts]

Patches (34)

Series Summary

Sessions

Session 2026-06-08