From mboxrd@z Thu Jan 1 00:00:00 1970 From: Xiao Guangrong Subject: [PATCH 2/10] KVM: MMU: fix kvm_mmu_get_spte_hierarchy Date: Fri, 04 Mar 2011 18:57:27 +0800 Message-ID: <4D70C597.4070105@cn.fujitsu.com> References: <4D70C569.1030107@cn.fujitsu.com> Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit Cc: Marcelo Tosatti , LKML , KVM To: Avi Kivity Return-path: In-Reply-To: <4D70C569.1030107@cn.fujitsu.com> Sender: linux-kernel-owner@vger.kernel.org List-Id: kvm.vger.kernel.org Don not walk to the next level if spte is mapping to the large page Signed-off-by: Xiao Guangrong --- arch/x86/kvm/mmu.c | 3 ++- 1 files changed, 2 insertions(+), 1 deletions(-) diff --git a/arch/x86/kvm/mmu.c b/arch/x86/kvm/mmu.c index b9bf016..10e0982 100644 --- a/arch/x86/kvm/mmu.c +++ b/arch/x86/kvm/mmu.c @@ -3819,7 +3819,8 @@ int kvm_mmu_get_spte_hierarchy(struct kvm_vcpu *vcpu, u64 addr, u64 sptes[4]) for_each_shadow_entry(vcpu, addr, iterator) { sptes[iterator.level-1] = *iterator.sptep; nr_sptes++; - if (!is_shadow_present_pte(*iterator.sptep)) + if (!is_shadow_present_pte(*iterator.sptep) || + is_last_spte(*iterator.sptep, iterator.level)) break; } spin_unlock(&vcpu->kvm->mmu_lock); -- 1.7.4