The validity check for the guest line address is inefficient,
check the invalid value instead is more efficient.
Signed-off-by: Liang Li <liang.z.li@xxxxxxxxx>
---
arch/x86/kvm/vmx.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c
index a45d858..c32d5e8 100644
--- a/arch/x86/kvm/vmx.c
+++ b/arch/x86/kvm/vmx.c
@@ -6103,7 +6103,7 @@ static int handle_ept_violation(struct kvm_vcpu *vcpu)
exit_qualification = vmcs_readl(EXIT_QUALIFICATION);
gla_validity = (exit_qualification >> 7) & 0x3;
- if (gla_validity != 0x3 && gla_validity != 0x1 && gla_validity != 0) {
+ if (gla_validity == 0x2) {
printk(KERN_ERR "EPT: Handling EPT violation failed!\n");
printk(KERN_ERR "EPT: GPA: 0x%lx, GVA: 0x%lx\n",
(long unsigned int)vmcs_read64(GUEST_PHYSICAL_ADDRESS),
--
1.9.1
--
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