KVM: Add trace points in irqchip code
Add tracepoint in msi/ioapic/pic set_irq() functions,
in IPI sending and in the point where IRQ is placed into
apic's IRR.
Signed-off-by: Gleb Natapov <gleb@redhat.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
diff --git a/arch/x86/kvm/lapic.c b/arch/x86/kvm/lapic.c
index 6c84603..5d69760 100644
--- a/arch/x86/kvm/lapic.c
+++ b/arch/x86/kvm/lapic.c
@@ -375,6 +375,8 @@
break;
result = !apic_test_and_set_irr(vector, apic);
+ trace_kvm_apic_accept_irq(vcpu->vcpu_id, delivery_mode,
+ trig_mode, vector, result);
if (!result) {
if (trig_mode)
apic_debug("level trig mode repeatedly for "
@@ -493,6 +495,8 @@
else
irq.dest_id = GET_APIC_DEST_FIELD(icr_high);
+ trace_kvm_apic_ipi(icr_low, irq.dest_id);
+
apic_debug("icr_high 0x%x, icr_low 0x%x, "
"short_hand 0x%x, dest 0x%x, trig_mode 0x%x, level 0x%x, "
"dest_mode 0x%x, delivery_mode 0x%x, vector 0x%x\n",