On Thu, 2024-04-18 at 20:34 +0100, David Woodhouse wrote: > > KVM: x86: Remove periodic global clock updates > KVM: x86: Kill KVM_REQ_GLOBAL_CLOCK_UPDATE Meh, I might have to put those back. They were originally introduced to cope with NTP frequency skew which is no longer a problem, but we now know there's a systemic skew even between the host CLOCK_MONOTONIC_RAW and the KVM clock as calculated via the guest's TSC. So at least when !ka->use_master_clock I think the forced resync does need to happen.
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