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-rw-r--r--arch/x86/kvm/lapic.c8
1 files changed, 6 insertions, 2 deletions
diff --git a/arch/x86/kvm/lapic.c b/arch/x86/kvm/lapic.c
index 23480d8e4ef1..319ed873a111 100644
--- a/arch/x86/kvm/lapic.c
+++ b/arch/x86/kvm/lapic.c
@@ -2244,13 +2244,17 @@ int kvm_apic_local_deliver(struct kvm_lapic *apic, int lvt_type)
{
u32 reg = kvm_lapic_get_reg(apic, lvt_type);
int vector, mode, trig_mode;
+ int r;
if (kvm_apic_hw_enabled(apic) && !(reg & APIC_LVT_MASKED)) {
vector = reg & APIC_VECTOR_MASK;
mode = reg & APIC_MODE_MASK;
trig_mode = reg & APIC_LVT_LEVEL_TRIGGER;
- return __apic_accept_irq(apic, mode, vector, 1, trig_mode,
- NULL);
+
+ r = __apic_accept_irq(apic, mode, vector, 1, trig_mode, NULL);
+ if (r && lvt_type == APIC_LVTPC)
+ kvm_lapic_set_reg(apic, APIC_LVTPC, reg | APIC_LVT_MASKED);
+ return r;
}
return 0;
}