KVM: convert custom marker based tracing to event traces
This allows use of the powerful ftrace infrastructure.
See Documentation/trace/ for usage information.
[avi, stephen: various build fixes]
[sheng: fix control register breakage]
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Sheng Yang <sheng@linux.intel.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
diff --git a/virt/kvm/irq_comm.c b/virt/kvm/irq_comm.c
index bb8a1b5..94759ed 100644
--- a/virt/kvm/irq_comm.c
+++ b/virt/kvm/irq_comm.c
@@ -20,6 +20,7 @@
*/
#include <linux/kvm_host.h>
+#include <trace/events/kvm.h>
#include <asm/msidef.h>
#ifdef CONFIG_IA64
@@ -125,6 +126,8 @@
unsigned long *irq_state, sig_level;
int ret = -1;
+ trace_kvm_set_irq(irq);
+
WARN_ON(!mutex_is_locked(&kvm->irq_lock));
if (irq < KVM_IOAPIC_NUM_PINS) {
@@ -161,6 +164,8 @@
struct hlist_node *n;
unsigned gsi = pin;
+ trace_kvm_ack_irq(irqchip, pin);
+
list_for_each_entry(e, &kvm->irq_routing, link)
if (e->type == KVM_IRQ_ROUTING_IRQCHIP &&
e->irqchip.irqchip == irqchip &&