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From: Gui Jianfeng <guijianfeng@cn.fujitsu.com>
To: Avi Kivity <avi@redhat.com>
Cc: kvm@vger.kernel.org
Subject: [PATCH 3/3] KVM MMU: Take sp level into account when calculating quadran
Date: Thu, 22 Apr 2010 17:34:24 +0800	[thread overview]
Message-ID: <4BD01820.3050809@cn.fujitsu.com> (raw)

Take sp level into account when calculating quadrant, because only when
level == PT_PAGE_TABLE_LEVEL, quadrant is needed.

Signed-off-by: Gui Jianfeng <guijianfeng@cn.fujitsu.com>
---
 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 640b82d..2a35a65 100644
--- a/arch/x86/kvm/mmu.c
+++ b/arch/x86/kvm/mmu.c
@@ -1324,7 +1324,8 @@ static struct kvm_mmu_page *kvm_mmu_get_page(struct kvm_vcpu *vcpu,
 	if (role.direct)
 		role.cr4_pae = 0;
 	role.access = access;
-	if (vcpu->arch.mmu.root_level <= PT32_ROOT_LEVEL) {
+	if (vcpu->arch.mmu.root_level <= PT32_ROOT_LEVEL &&
+	    level == PT_PAGE_TABLE_LEVEL) {
 		quadrant = gaddr >> (PAGE_SHIFT + (PT64_PT_BITS * level));
 		quadrant &= (1 << ((PT32_PT_BITS - PT64_PT_BITS) * level)) - 1;
 		role.quadrant = quadrant;
-- 
1.6.5.2



             reply	other threads:[~2010-04-22  9:35 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2010-04-22  9:34 Gui Jianfeng [this message]
2010-04-23  8:10 ` [PATCH 3/3] KVM MMU: Take sp level into account when calculating quadran Gui Jianfeng

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