KVM: x86: Disable posted interrupts for non-standard IRQs delivery modes

[linux-2.6-microblaze.git] / arch / x86 / kvm / svm.c

diff --git a/arch/x86/kvm/svm.c b/arch/x86/kvm/svm.c
index 1f220a8..f5b03d0 100644 (file)
--- a/arch/x86/kvm/svm.c
+++ b/arch/x86/kvm/svm.c
@@ -5260,7 +5260,8 @@ get_pi_vcpu_info(struct kvm *kvm, struct kvm_kernel_irq_routing_entry *e,
 
        kvm_set_msi_irq(kvm, e, &irq);
 
-       if (!kvm_intr_is_single_vcpu(kvm, &irq, &vcpu)) {
+       if (!kvm_intr_is_single_vcpu(kvm, &irq, &vcpu) ||
+           !kvm_irq_is_postable(&irq)) {
                pr_debug("SVM: %s: use legacy intr remap mode for irq %u\n",
                         __func__, irq.vector);
                return -1;
@@ -5314,6 +5315,7 @@ static int svm_update_pi_irte(struct kvm *kvm, unsigned int host_irq,
                 * 1. When cannot target interrupt to a specific vcpu.
                 * 2. Unsetting posted interrupt.
                 * 3. APIC virtialization is disabled for the vcpu.
+                * 4. IRQ has incompatible delivery mode (SMI, INIT, etc)
                 */
                if (!get_pi_vcpu_info(kvm, e, &vcpu_info, &svm) && set &&
                    kvm_vcpu_apicv_active(&svm->vcpu)) {