From: Nadav Har'El <redacted>

The code which checks whether to inject a pagefault to L1 or L2 (in
nested VMX) was wrong, incorrect in how it checked the PF_VECTOR bit.
Thanks to Dan Carpenter for spotting this.

Signed-off-by: Nadav Har'El <redacted>
Reported-by: Dan Carpenter <redacted>
Signed-off-by: Avi Kivity <redacted>
(cherry picked from commit 9587190107d0c0cbaccbf7bf6b0245d29095a9ae)
---
 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 fafb325..5d1b0c7 100644
--- a/arch/x86/kvm/vmx.c
+++ b/arch/x86/kvm/vmx.c

@@ -1678,7 +1678,7 @@ static int nested_pf_handled(struct kvm_vcpu *vcpu)
 	struct vmcs12 *vmcs12 = get_vmcs12(vcpu);
 
 	/* TODO: also check PFEC_MATCH/MASK, not just EB.PF. */
-	if (!(vmcs12->exception_bitmap & PF_VECTOR))
+	if (!(vmcs12->exception_bitmap & (1u << PF_VECTOR)))
 		return 0;
 
 	nested_vmx_vmexit(vcpu);

-- 
1.7.10.1