From 4700715959d2c769c846c87205404351c087fb8b Mon Sep 17 00:00:00 2001
From: Marcelo Tosatti <mtosatti@redhat.com>
Date: Tue, 9 Dec 2008 16:07:22 +0100
Subject: [PATCH] --- yaml --- r: 125300 b: refs/heads/master c:
 eb64f1e8cd5c3cae912db30a77d062367f7a11a6 h: refs/heads/master v: v3

---
 [refs]                   | 2 +-
 trunk/arch/x86/kvm/mmu.c | 2 ++
 2 files changed, 3 insertions(+), 1 deletion(-)

diff --git a/[refs] b/[refs]
index 3c5eaaa8eb5f..441c910e0c1b 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: ca9edaee1aea34ebd9adb48910aba0b3d64b1b22
+refs/heads/master: eb64f1e8cd5c3cae912db30a77d062367f7a11a6
diff --git a/trunk/arch/x86/kvm/mmu.c b/trunk/arch/x86/kvm/mmu.c
index 863baf70506e..641c07844e6e 100644
--- a/trunk/arch/x86/kvm/mmu.c
+++ b/trunk/arch/x86/kvm/mmu.c
@@ -1269,6 +1269,8 @@ static int walk_shadow(struct kvm_shadow_walk *walker,
 	if (level == PT32E_ROOT_LEVEL) {
 		shadow_addr = vcpu->arch.mmu.pae_root[(addr >> 30) & 3];
 		shadow_addr &= PT64_BASE_ADDR_MASK;
+		if (!shadow_addr)
+			return 1;
 		--level;
 	}