From: Zhang Xiantao <xiantao.zhang@intel.com>
Date: Tue, 4 Dec 2012 17:55:14 +0000 (+0800)
Subject: kvm: remove unnecessary bit checking for ept violation
X-Git-Url: http://drtracing.org/?a=commitdiff_plain;h=0307b7b8c275e65552f6022a18ad91902ae25d42;p=deliverable%2Flinux.git

kvm: remove unnecessary bit checking for ept violation

Bit 6 in EPT vmexit's exit qualification is not defined in SDM, so remove it.

Signed-off-by: Zhang Xiantao <xiantao.zhang@intel.com>
Signed-off-by: Gleb Natapov <gleb@redhat.com>
---

diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c
index 2fd2046dc94c..d2248b3dbb61 100644
--- a/arch/x86/kvm/vmx.c
+++ b/arch/x86/kvm/vmx.c
@@ -4863,11 +4863,6 @@ static int handle_ept_violation(struct kvm_vcpu *vcpu)
 
 	exit_qualification = vmcs_readl(EXIT_QUALIFICATION);
 
-	if (exit_qualification & (1 << 6)) {
-		printk(KERN_ERR "EPT: GPA exceeds GAW!\n");
-		return -EINVAL;
-	}
-
 	gla_validity = (exit_qualification >> 7) & 0x3;
 	if (gla_validity != 0x3 && gla_validity != 0x1 && gla_validity != 0) {
 		printk(KERN_ERR "EPT: Handling EPT violation failed!\n");