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/virt/kvm/ioapic.c b/virt/kvm/ioapic.c
index 92496ff..b91fbb2 100644
--- a/virt/kvm/ioapic.c
+++ b/virt/kvm/ioapic.c
@@ -36,6 +36,7 @@
#include <asm/processor.h>
#include <asm/page.h>
#include <asm/current.h>
+#include <trace/events/kvm.h>
#include "ioapic.h"
#include "lapic.h"
@@ -193,6 +194,7 @@
(!edge && !entry.fields.remote_irr))
ret = ioapic_service(ioapic, irq);
}
+ trace_kvm_ioapic_set_irq(entry.bits, irq, ret == 0);
}
return ret;
}
diff --git a/virt/kvm/irq_comm.c b/virt/kvm/irq_comm.c
index a9d7fd1..001663f 100644
--- a/virt/kvm/irq_comm.c
+++ b/virt/kvm/irq_comm.c
@@ -100,6 +100,8 @@
{
struct kvm_lapic_irq irq;
+ trace_kvm_msi_set_irq(e->msi.address_lo, e->msi.data);
+
irq.dest_id = (e->msi.address_lo &
MSI_ADDR_DEST_ID_MASK) >> MSI_ADDR_DEST_ID_SHIFT;
irq.vector = (e->msi.data &
