diff options
| author | Nadav Har'El <nyh@math.technion.ac.il> | 2012-03-06 16:39:22 +0200 |
|---|---|---|
| committer | Ben Hutchings <ben@decadent.org.uk> | 2012-05-31 00:43:12 +0100 |
| commit | b9c523c841fd2e14602d144f3259c0fefe2c0da6 (patch) | |
| tree | 252930e555158e2c589fd60eca05eb7ba9a8969b /arch | |
| parent | 50fcec93e8c917b4f6e1a3219207d351e6eae1b2 (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>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Diffstat (limited to 'arch')
| -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 4ea76784fe65..7ac59930d40e 100644 --- a/arch/x86/kvm/vmx.c +++ b/arch/x86/kvm/vmx.c @@ -1677,7 +1677,7 @@ 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); |