* [PATCH] No need to kick cpu if not in a guest mode.
@ 2009-07-07 12:27 Gleb Natapov
2009-07-07 14:56 ` Marcelo Tosatti
2009-07-07 15:39 ` Avi Kivity
0 siblings, 2 replies; 3+ messages in thread
From: Gleb Natapov @ 2009-07-07 12:27 UTC (permalink / raw)
To: avi; +Cc: mtosatti, kvm
This will save a couple of IPIs.
Signed-off-by: Gleb Natapov <gleb@redhat.com>
diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index efb0b68..1e30400 100644
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -3498,6 +3498,7 @@ 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;
--
Gleb.
^ permalink raw reply related [flat|nested] 3+ messages in thread
* Re: [PATCH] No need to kick cpu if not in a guest mode.
2009-07-07 12:27 [PATCH] No need to kick cpu if not in a guest mode Gleb Natapov
@ 2009-07-07 14:56 ` Marcelo Tosatti
2009-07-07 15:39 ` Avi Kivity
1 sibling, 0 replies; 3+ messages in thread
From: Marcelo Tosatti @ 2009-07-07 14:56 UTC (permalink / raw)
To: Gleb Natapov; +Cc: avi, kvm
ACK
On Tue, Jul 07, 2009 at 03:27:32PM +0300, Gleb Natapov wrote:
> This will save a couple of IPIs.
>
> Signed-off-by: Gleb Natapov <gleb@redhat.com>
> diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
> index efb0b68..1e30400 100644
> --- a/arch/x86/kvm/x86.c
> +++ b/arch/x86/kvm/x86.c
> @@ -3498,6 +3498,7 @@ 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;
> --
> Gleb.
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: [PATCH] No need to kick cpu if not in a guest mode.
2009-07-07 12:27 [PATCH] No need to kick cpu if not in a guest mode Gleb Natapov
2009-07-07 14:56 ` Marcelo Tosatti
@ 2009-07-07 15:39 ` Avi Kivity
1 sibling, 0 replies; 3+ messages in thread
From: Avi Kivity @ 2009-07-07 15:39 UTC (permalink / raw)
To: Gleb Natapov; +Cc: mtosatti, kvm
On 07/07/2009 03:27 PM, Gleb Natapov wrote:
> This will save a couple of IPIs.
>
>
Applied, thanks.
--
error compiling committee.c: too many arguments to function
^ permalink raw reply [flat|nested] 3+ messages in thread
end of thread, other threads:[~2009-07-07 15:36 UTC | newest]
Thread overview: 3+ messages (download: mbox.gz follow: Atom feed
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2009-07-07 12:27 [PATCH] No need to kick cpu if not in a guest mode Gleb Natapov
2009-07-07 14:56 ` Marcelo Tosatti
2009-07-07 15:39 ` Avi Kivity
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