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-rw-r--r--arch/x86/kvm/vmx.c21
1 files changed, 20 insertions, 1 deletions
diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c
index 0c9569b994f9..7534a9f67cc8 100644
--- a/arch/x86/kvm/vmx.c
+++ b/arch/x86/kvm/vmx.c
@@ -7130,7 +7130,26 @@ static void vmx_hwapic_irr_update(struct kvm_vcpu *vcpu, int max_irr)
if (max_irr == -1)
return;
- vmx_set_rvi(max_irr);
+ /*
+ * If a vmexit is needed, vmx_check_nested_events handles it.
+ */
+ if (is_guest_mode(vcpu) && nested_exit_on_intr(vcpu))
+ return;
+
+ if (!is_guest_mode(vcpu)) {
+ vmx_set_rvi(max_irr);
+ return;
+ }
+
+ /*
+ * Fall back to pre-APICv interrupt injection since L2
+ * is run without virtual interrupt delivery.
+ */
+ if (!kvm_event_needs_reinjection(vcpu) &&
+ vmx_interrupt_allowed(vcpu)) {
+ kvm_queue_interrupt(vcpu, max_irr, false);
+ vmx_inject_irq(vcpu);
+ }
}
static void vmx_load_eoi_exitmap(struct kvm_vcpu *vcpu, u64 *eoi_exit_bitmap)
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