KVM: x86: update pvclock area conditionally, on cpu migration

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As requested by Glauber, do not update kvmclock area on vcpu->pcpu
migration, in case the host has stable TSC.

This is to reduce cacheline bouncing.

Acked-by: Glauber Costa <glommer@parallels.com>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>

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Marcelo Tosatti 2012-11-27 23:29:04 -02:00

parent b48aa97e38

commit d98d07ca7e

1 changed files with 6 additions and 1 deletions

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arch/x86/kvm/x86.c

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