Messages in this thread Patch in this message | | | From | Avi Kivity <> | Subject | [PATCH 17/46] KVM: No need to kick cpu if not in a guest mode | Date | Sun, 23 Aug 2009 14:56:16 +0300 |
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From: Gleb Natapov <gleb@redhat.com>
This will save a couple of IPIs.
Signed-off-by: Gleb Natapov <gleb@redhat.com> Acked-by: Marcelo Tosatti <mtosatti@redhat.com> Signed-off-by: Avi Kivity <avi@redhat.com> --- arch/x86/kvm/x86.c | 1 + 1 files changed, 1 insertions(+), 0 deletions(-)
diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c index 95fa45c..e3d9040 100644 --- a/arch/x86/kvm/x86.c +++ b/arch/x86/kvm/x86.c @@ -3506,6 +3506,7 @@ static int vcpu_enter_guest(struct kvm_vcpu *vcpu, struct kvm_run *kvm_run) smp_mb__after_clear_bit(); if (vcpu->requests || need_resched() || signal_pending(current)) { + set_bit(KVM_REQ_KICK, &vcpu->requests); local_irq_enable(); preempt_enable(); r = 1; -- 1.6.4.1
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