diff options
| author | Joerg Roedel | 2009-09-16 15:24:15 +0200 |
|---|---|---|
| committer | Avi Kivity | 2009-12-03 08:32:11 +0100 |
| commit | 7fcdb5103d10d2eb75876637a2efa9679cce14d3 (patch) | |
| tree | f8879cd7baeab1e2d40a2dbadac8df638200ba8b /arch/x86/kvm/svm.c | |
| parent | KVM: remove duplicated #include (diff) | |
| download | kernel-qcow2-linux-7fcdb5103d10d2eb75876637a2efa9679cce14d3.tar.gz kernel-qcow2-linux-7fcdb5103d10d2eb75876637a2efa9679cce14d3.tar.xz kernel-qcow2-linux-7fcdb5103d10d2eb75876637a2efa9679cce14d3.zip | |
KVM: SVM: reorganize svm_interrupt_allowed
This patch reorganizes the logic in svm_interrupt_allowed to
make it better to read. This is important because the logic
is a lot more complicated with Nested SVM.
Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
Diffstat (limited to 'arch/x86/kvm/svm.c')
| -rw-r--r-- | arch/x86/kvm/svm.c | 16 |
1 files changed, 12 insertions, 4 deletions
diff --git a/arch/x86/kvm/svm.c b/arch/x86/kvm/svm.c index 59fe4d54da11..3f3fe815c21b 100644 --- a/arch/x86/kvm/svm.c +++ b/arch/x86/kvm/svm.c @@ -2472,10 +2472,18 @@ static int svm_interrupt_allowed(struct kvm_vcpu *vcpu) { struct vcpu_svm *svm = to_svm(vcpu); struct vmcb *vmcb = svm->vmcb; - return (vmcb->save.rflags & X86_EFLAGS_IF) && - !(vmcb->control.int_state & SVM_INTERRUPT_SHADOW_MASK) && - gif_set(svm) && - !(is_nested(svm) && (svm->vcpu.arch.hflags & HF_VINTR_MASK)); + int ret; + + if (!gif_set(svm) || + (vmcb->control.int_state & SVM_INTERRUPT_SHADOW_MASK)) + return 0; + + ret = !!(vmcb->save.rflags & X86_EFLAGS_IF); + + if (is_nested(svm)) + return ret && !(svm->vcpu.arch.hflags & HF_VINTR_MASK); + + return ret; } static void enable_irq_window(struct kvm_vcpu *vcpu) |