Re: [PATCH] No need to kick cpu if not in a guest mode.

[Marcelo Tosatti <mtosatti@redhat.com>]

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.