From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S934423Ab0EEMW7 (ORCPT ); Wed, 5 May 2010 08:22:59 -0400 Received: from cn.fujitsu.com ([222.73.24.84]:49862 "EHLO song.cn.fujitsu.com" rhost-flags-OK-FAIL-OK-OK) by vger.kernel.org with ESMTP id S932090Ab0EEMW6 (ORCPT ); Wed, 5 May 2010 08:22:58 -0400 Message-ID: <4BE16265.7060004@cn.fujitsu.com> Date: Wed, 05 May 2010 20:19:49 +0800 From: Xiao Guangrong User-Agent: Thunderbird 2.0.0.24 (Windows/20100228) MIME-Version: 1.0 To: Avi Kivity CC: Marcelo Tosatti , KVM list , LKML Subject: [PATCH 1/2] KVM MMU: fix for forgot mark parent->unsync_children bit Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org When mapping a new parent to unsync shadow page, we should mark parent's unsync_children bit Reported-by: Marcelo Tosatti Signed-off-by: Xiao Guangrong --- arch/x86/kvm/mmu.c | 4 +++- 1 files changed, 3 insertions(+), 1 deletions(-) diff --git a/arch/x86/kvm/mmu.c b/arch/x86/kvm/mmu.c index 97f2ea0..bf35a2f 100644 --- a/arch/x86/kvm/mmu.c +++ b/arch/x86/kvm/mmu.c @@ -1374,7 +1374,9 @@ static struct kvm_mmu_page *kvm_mmu_get_page(struct kvm_vcpu *vcpu, if (sp->unsync_children) { set_bit(KVM_REQ_MMU_SYNC, &vcpu->requests); kvm_mmu_mark_parents_unsync(sp); - } + } else if (sp->unsync) + kvm_mmu_mark_parents_unsync(sp); + trace_kvm_mmu_get_page(sp, false); return sp; } -- 1.6.1.2