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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 /virt
parent07fb8bb29f5269f30afa6f1b3d941406677f6ad2 (diff)
downloadlinux-2.6.34-ux500-1000ff8d893765d7b56e32fe16dbe4814f172588.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 'virt')
-rw-r--r--virt/kvm/ioapic.c2
-rw-r--r--virt/kvm/irq_comm.c2
2 files changed, 4 insertions, 0 deletions
diff --git a/virt/kvm/ioapic.c b/virt/kvm/ioapic.c
index 92496ff3d82..b91fbb21544 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 @@ int kvm_ioapic_set_irq(struct kvm_ioapic *ioapic, int irq, int level)
(!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 a9d7fd1f1d6..001663ff401 100644
--- a/virt/kvm/irq_comm.c
+++ b/virt/kvm/irq_comm.c
@@ -100,6 +100,8 @@ static int kvm_set_msi(struct kvm_kernel_irq_routing_entry *e,
{
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 &