Re: [PATCH v6 00/36] Cleaning up the KVM clock mess
Sean Christopherson <[email protected]>
| Newsgroups | gmane.comp.emulators.xen.devel,gmane.comp.emulators.kvm.devel,gmane.linux.documentation,gmane.linux.kernel |
|---|---|
| Message-ID | <[email protected]> |
On Fri, 03 Jul 2026 22:17:39 +0100, David Woodhouse wrote:
> This is v6 of the series to clean up the KVM clock, rebased onto the
> tip timers/ptp material (the timers-ptp-2026-06-13 merge, which includes
> Thomas's ktime snapshot series and the read_snapshot patches).
>
> The KVM clock has historically suffered from three problems:
>
> 1. Imprecision: get_kvmclock_ns() computed the clock from the *host*
> TSC without applying guest TSC scaling, causing systemic drift from
> the values the guest computes from its own TSC.
>
> [...]
Applied patch 1 to kvm-x86 clocks.
[01/36] KVM: x86/xen: Do not corrupt KVM clock in kvm_xen_shared_info_init()
https://github.com/kvm-x86/linux/commit/3d4b20b5a7df
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https://github.com/kvm-x86/linux/tree/next