From mboxrd@z Thu Jan 1 00:00:00 1970 From: Xiao Guangrong Subject: [PATCH v2 1/7] KVM: MMU: skip invalid sp when unprotect page Date: Fri, 04 Jun 2010 21:52:17 +0800 Message-ID: <4C090511.60206@cn.fujitsu.com> Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit Cc: Marcelo Tosatti , LKML , KVM list To: Avi Kivity Return-path: Received: from cn.fujitsu.com ([222.73.24.84]:57597 "EHLO song.cn.fujitsu.com" rhost-flags-OK-FAIL-OK-OK) by vger.kernel.org with ESMTP id S1753357Ab0FDNzy (ORCPT ); Fri, 4 Jun 2010 09:55:54 -0400 Sender: kvm-owner@vger.kernel.org List-ID: In kvm_mmu_unprotect_page(), the invalid sp can be skipped Signed-off-by: Xiao Guangrong --- arch/x86/kvm/mmu.c | 2 +- 1 files changed, 1 insertions(+), 1 deletions(-) diff --git a/arch/x86/kvm/mmu.c b/arch/x86/kvm/mmu.c index a62e3ba..e962f26 100644 --- a/arch/x86/kvm/mmu.c +++ b/arch/x86/kvm/mmu.c @@ -1629,7 +1629,7 @@ static int kvm_mmu_unprotect_page(struct kvm *kvm, gfn_t gfn) bucket = &kvm->arch.mmu_page_hash[index]; restart: hlist_for_each_entry_safe(sp, node, n, bucket, hash_link) - if (sp->gfn == gfn && !sp->role.direct) { + if (sp->gfn == gfn && !sp->role.direct && !sp->role.invalid) { pgprintk("%s: gfn %lx role %x\n", __func__, gfn, sp->role.word); r = 1; -- 1.6.1.2