Subject	Cleaning up the KVM clock mess
Author	dwmw2@infradead.org
Date	2026-07-03 21:17:40 +0000 UTC
Version	Version 5 Version 6 Version 7
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

Patches (36)

Name	Content [All]
[PATCH v6 01/36] KVM: x86/xen: Do not corrupt KVM clock in kvm_xen_shared_info_init()	[Body]
[PATCH v6 02/36] KVM: x86: Improve accuracy of KVM clock when TSC scaling is in force	[Body]
[PATCH v6 03/36] UAPI: x86: Move pvclock-abi to UAPI for x86 platforms	[Body]
[PATCH v6 04/36] KVM: selftests: Use UAPI pvclock-abi.h in xen_shinfo_test	[Body]
[PATCH v6 05/36] KVM: x86: Add KVM_[GS]ET_CLOCK_GUEST for accurate KVM clock migration	[Body]
[PATCH v6 06/36] KVM: selftests: Add KVM/PV clock selftest to prove timer correction	[Body]
[PATCH v6 07/36] KVM: x86: Explicitly disable TSC scaling without CONSTANT_TSC	[Body]
[PATCH v6 08/36] KVM: x86: Activate master clock immediately on vCPU creation	[Body]
[PATCH v6 09/36] KVM: x86: Add KVM_VCPU_TSC_SCALE and fix the documentation on TSC migration	[Body]
[PATCH v6 10/36] KVM: x86: Avoid NTP frequency skew for KVM clock on 32-bit host	[Body]
[PATCH v6 11/36] KVM: x86: Fold __get_kvmclock() into get_kvmclock()	[Body]
[PATCH v6 12/36] KVM: x86: Restructure get_kvmclock()	[Body]
[PATCH v6 13/36] KVM: x86: Fix KVM clock precision in get_kvmclock() with TSC scaling	[Body]
[PATCH v6 14/36] KVM: x86: Use get_kvmclock() in kvm_get_wall_clock_epoch()	[Body]
[PATCH v6 15/36] KVM: x86: Fix compute_guest_tsc() to handle negative time deltas	[Body]
[PATCH v6 16/36] KVM: x86: Restructure kvm_guest_time_update() for TSC upscaling	[Body]
[PATCH v6 17/36] KVM: x86: Simplify and comment kvm_get_time_scale()	[Body]
[PATCH v6 18/36] KVM: x86: Remove implicit rdtsc() from kvm_compute_l1_tsc_offset()	[Body]
[PATCH v6 19/36] KVM: x86: Improve synchronization in kvm_synchronize_tsc()	[Body]
[PATCH v6 20/36] KVM: x86: Kill last_tsc_{nsec,write,offset} fields	[Body]
[PATCH v6 21/36] KVM: x86: Replace nr_vcpus_matched_tsc count with all_vcpus_matched_tsc bool	[Body]
[PATCH v6 22/36] KVM: x86: Allow KVM master clock mode when TSCs are offset from each other	[Body]
[PATCH v6 23/36] KVM: selftests: Add master clock offset test	[Body]
[PATCH v6 24/36] KVM: x86: Factor out kvm_use_master_clock()	[Body]
[PATCH v6 25/36] KVM: x86: Avoid gratuitous global clock updates	[Body]
[PATCH v6 26/36] KVM: x86/xen: Prevent runstate times from becoming negative	[Body]
[PATCH v6 27/36] KVM: x86: Avoid redundant masterclock updates from multiple vCPUs	[Body]
[PATCH v6 28/36] KVM: x86: Remove runtime Xen TSC frequency CPUID update	[Body]
[PATCH v6 29/36] KVM: selftests: Add Xen/generic CPUID timing leaf test	[Body]
[PATCH v6 30/36] KVM: x86: Re-synchronize TSC after KVM_SET_TSC_KHZ	[Body]
[PATCH v6 31/36] KVM: selftests: Add Xen runstate migration test	[Body]
[PATCH v6 32/36] KVM: x86: Use ktime_get_snapshot_id() for master clock	[Body]
[PATCH v6 33/36] KVM: x86: Compute kvmclock base without pvclock_gtod_data	[Body]
[PATCH v6 34/36] KVM: x86: Cache host vclock_mode for masterclock eligibility checks	[Body]
[PATCH v6 35/36] KVM: x86: Remove pvclock_gtod_data and private timekeeping code	[Body]
[PATCH v6 36/36] KVM: x86: Activate master clock from kvm_arch_init_vm()	[Body]

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