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| author | Gleb Natapov <gleb@redhat.com> | 2013-09-25 10:58:22 +0300 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2013-09-25 11:38:26 +0200 |
| commit | bcd1c2949501869631b25fd62d8df5079677a101 (patch) | |
| tree | e046939cadad578c7334206f534e15654e80226f /arch | |
| parent | ac570e0493815e0b41681c89cb50d66421429d27 (diff) | |
| download | linux-bcd1c2949501869631b25fd62d8df5079677a101.tar.bz2 | |
KVM: VMX: do not check bit 12 of EPT violation exit qualification when undefined
Bit 12 is undefined in any of the following cases:
- If the "NMI exiting" VM-execution control is 1 and the "virtual NMIs"
VM-execution control is 0.
- If the VM exit sets the valid bit in the IDT-vectoring information field
Signed-off-by: Gleb Natapov <gleb@redhat.com>
[Add parentheses around & within && - Paolo]
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/x86/kvm/vmx.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c index a1216de9ffda..3b8e7459dd4d 100644 --- a/arch/x86/kvm/vmx.c +++ b/arch/x86/kvm/vmx.c @@ -5345,7 +5345,9 @@ static int handle_ept_violation(struct kvm_vcpu *vcpu) * There are errata that may cause this bit to not be set: * AAK134, BY25. */ - if (exit_qualification & INTR_INFO_UNBLOCK_NMI) + if (!(to_vmx(vcpu)->idt_vectoring_info & VECTORING_INFO_VALID_MASK) && + cpu_has_virtual_nmis() && + (exit_qualification & INTR_INFO_UNBLOCK_NMI)) vmcs_set_bits(GUEST_INTERRUPTIBILITY_INFO, GUEST_INTR_STATE_NMI); gpa = vmcs_read64(GUEST_PHYSICAL_ADDRESS); |