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KVM: nVMX: Fix erroneous exception bitmap check

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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 <nyh@il.ibm.com>
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
This commit is contained in:
Nadav Har'El 2012-03-06 16:39:22 +02:00 committed by Avi Kivity
parent a223c313cb
commit 9587190107
1 changed files with 1 additions and 1 deletions
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2
arch/x86/kvm/vmx.c
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@ -1664,7 +1664,7 @@ 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);