KVM: x86: Avoid issuing wbinvd twice

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Micro optimization to avoid calling wbinvd twice on the CPU that has to
emulate it. As we might be preempted between smp_call_function_many and
the local wbinvd, the cache might be filled again so that real work
could be done uselessly.

Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>

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Jan Kiszka 2010-11-01 14:01:29 +01:00 • committed by Avi Kivity

parent aac8763697

commit 2eec734374

1 changed files with 6 additions and 4 deletions

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arch/x86/kvm/x86.c

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