diff options
| author | Nadav Har'El <nyh@math.technion.ac.il> | 2012-05-09 16:10:44 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2012-05-12 09:32:20 -0700 |
| commit | 8dd2cb2a8d183d59f6d41dd71db550a306cc55eb (patch) | |
| tree | b71839978afae866788ede4a6b13a0811932fff1 | |
| parent | 044873c9fc637a88225f0e01bedb9daee04524ed (diff) | |
KVM: nVMX: Fix erroneous exception bitmap check
(cherry picked from commit 9587190107d0c0cbaccbf7bf6b0245d29095a9ae)
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>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | arch/x86/kvm/vmx.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c index fafb3256ea5..5d1b0c75fff 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); |