From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S933790AbZHWMDx (ORCPT ); Sun, 23 Aug 2009 08:03:53 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S933536AbZHWMDs (ORCPT ); Sun, 23 Aug 2009 08:03:48 -0400 Received: from mx1.redhat.com ([209.132.183.28]:43287 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S933534AbZHWL4t (ORCPT ); Sun, 23 Aug 2009 07:56:49 -0400 From: Avi Kivity To: kvm@vger.kernel.org Cc: linux-kernel@vger.kernel.org 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 Message-Id: <1251028605-31977-18-git-send-email-avi@redhat.com> In-Reply-To: <1251028605-31977-1-git-send-email-avi@redhat.com> References: <1251028605-31977-1-git-send-email-avi@redhat.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Gleb Natapov This will save a couple of IPIs. Signed-off-by: Gleb Natapov Acked-by: Marcelo Tosatti Signed-off-by: Avi Kivity --- 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