diff options
author | Gleb Natapov | 2009-07-07 14:27:32 +0200 |
---|---|---|
committer | Avi Kivity | 2009-09-10 07:33:11 +0200 |
commit | c7f0f24b1f82ec049fcfb8e6d4e1cee2815efbe5 (patch) | |
tree | 1e0bc486421e7e2f87418b186fbb338baceda9d2 | |
parent | KVM: Add trace points in irqchip code (diff) | |
download | kernel-qcow2-linux-c7f0f24b1f82ec049fcfb8e6d4e1cee2815efbe5.tar.gz kernel-qcow2-linux-c7f0f24b1f82ec049fcfb8e6d4e1cee2815efbe5.tar.xz kernel-qcow2-linux-c7f0f24b1f82ec049fcfb8e6d4e1cee2815efbe5.zip |
KVM: No need to kick cpu if not in a guest mode
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>
-rw-r--r-- | 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 95fa45c0f16e..e3d9040f2156 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; |