KVM: x86: Fix deep C-state TSC desynchronization

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When CPUs with unstable TSCs enter deep C-state, TSC may stop
running.  This causes us to require resynchronization.  Since
we can't tell when this may potentially happen, we assume the
worst by forcing re-compensation for it at every point the VCPU
task is descheduled.

Signed-off-by: Zachary Amsden <zamsden@redhat.com>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>

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Zachary Amsden 2010-08-19 22:07:24 -10:00 • committed by Avi Kivity

parent e48672fa25

commit 48434c20e1

1 changed files with 1 additions and 1 deletions

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arch/x86/kvm/x86.c

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