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[Qemu-devel] [PATCH 2/4] kvm-all: add kvm_run_exit tracepoint
From: |
Stefan Hajnoczi |
Subject: |
[Qemu-devel] [PATCH 2/4] kvm-all: add kvm_run_exit tracepoint |
Date: |
Fri, 3 May 2013 14:01:23 +0200 |
From: Kazuya Saito <address@hidden>
This patch enable us to know exit reason of KVM_RUN. It will help us
know where the trouble is caused.
Signed-off-by: Kazuya Saito <address@hidden>
Reviewed-by: Paolo Bonzini <address@hidden>
Signed-off-by: Stefan Hajnoczi <address@hidden>
---
kvm-all.c | 1 +
trace-events | 2 ++
2 files changed, 3 insertions(+)
diff --git a/kvm-all.c b/kvm-all.c
index 4f73b98..3a31602 100644
--- a/kvm-all.c
+++ b/kvm-all.c
@@ -1627,6 +1627,7 @@ int kvm_cpu_exec(CPUArchState *env)
abort();
}
+ trace_kvm_run_exit(cpu->cpu_index, run->exit_reason);
switch (run->exit_reason) {
case KVM_EXIT_IO:
DPRINTF("handle_io\n");
diff --git a/trace-events b/trace-events
index d5bc7a5..17d75ab 100644
--- a/trace-events
+++ b/trace-events
@@ -1158,3 +1158,5 @@ migrate_set_state(int new_state) "new state %d"
kvm_ioctl(int type, void *arg) "type %d, arg %p"
kvm_vm_ioctl(int type, void *arg) "type %d, arg %p"
kvm_vcpu_ioctl(int cpu_index, int type, void *arg) "cpu_index %d, type %d, arg
%p"
+kvm_run_exit(int cpu_index, uint32_t reason) "cpu_index %d, reason %d"
+
--
1.8.1.4