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authorGleb Natapov <gleb@redhat.com>2009-07-07 16:00:57 +0300
committerAvi Kivity <avi@redhat.com>2009-09-10 08:33:11 +0300
commit1000ff8d893765d7b56e32fe16dbe4814f172588 (patch)
treef76731c391a5044c26531b2a00feeb98b6e457b0 /arch/x86/kvm/i8259.c
parent07fb8bb29f5269f30afa6f1b3d941406677f6ad2 (diff)
downloadop-kernel-dev-1000ff8d893765d7b56e32fe16dbe4814f172588.zip
op-kernel-dev-1000ff8d893765d7b56e32fe16dbe4814f172588.tar.gz
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>
Diffstat (limited to 'arch/x86/kvm/i8259.c')
-rw-r--r--arch/x86/kvm/i8259.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/arch/x86/kvm/i8259.c b/arch/x86/kvm/i8259.c
index 1d1bb75..e4bcbdd 100644
--- a/arch/x86/kvm/i8259.c
+++ b/arch/x86/kvm/i8259.c
@@ -30,6 +30,7 @@
#include "irq.h"
#include <linux/kvm_host.h>
+#include "trace.h"
static void pic_lock(struct kvm_pic *s)
__acquires(&s->lock)
@@ -190,6 +191,8 @@ int kvm_pic_set_irq(void *opaque, int irq, int level)
if (irq >= 0 && irq < PIC_NUM_PINS) {
ret = pic_set_irq1(&s->pics[irq >> 3], irq & 7, level);
pic_update_irq(s);
+ trace_kvm_pic_set_irq(irq >> 3, irq & 7, s->pics[irq >> 3].elcr,
+ s->pics[irq >> 3].imr, ret == 0);
}
pic_unlock(s);
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