diff options
| author | Kazuya Saito <saito.kazuya@jp.fujitsu.com> | 2013-03-29 13:27:05 +0900 |
|---|---|---|
| committer | Stefan Hajnoczi <stefanha@redhat.com> | 2013-05-03 13:58:08 +0200 |
| commit | 9c7757290c6d80c2f5bde6fa71d2c9fe2b331c8c (patch) | |
| tree | 62e1498fdfd2aee7707c5cfb546e234dda87a187 | |
| parent | 8ca27ce2e1150486ea2db4116a03706b28294f16 (diff) | |
kvm-all: add kvm_ioctl, kvm_vm_ioctl, kvm_vcpu_ioctl tracepoints
This patch adds tracepoints at ioctl to kvm. Tracing these ioctl is
useful for clarification whether the cause of troubles is qemu or kvm.
Signed-off-by: Kazuya Saito <saito.kazuya@jp.fujitsu.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
| -rw-r--r-- | kvm-all.c | 4 | ||||
| -rw-r--r-- | trace-events | 5 |
2 files changed, 9 insertions, 0 deletions
@@ -33,6 +33,7 @@ #include "exec/memory.h" #include "exec/address-spaces.h" #include "qemu/event_notifier.h" +#include "trace.h" /* This check must be after config-host.h is included */ #ifdef CONFIG_EVENTFD @@ -1687,6 +1688,7 @@ int kvm_ioctl(KVMState *s, int type, ...) arg = va_arg(ap, void *); va_end(ap); + trace_kvm_ioctl(type, arg); ret = ioctl(s->fd, type, arg); if (ret == -1) { ret = -errno; @@ -1704,6 +1706,7 @@ int kvm_vm_ioctl(KVMState *s, int type, ...) arg = va_arg(ap, void *); va_end(ap); + trace_kvm_vm_ioctl(type, arg); ret = ioctl(s->vmfd, type, arg); if (ret == -1) { ret = -errno; @@ -1721,6 +1724,7 @@ int kvm_vcpu_ioctl(CPUState *cpu, int type, ...) arg = va_arg(ap, void *); va_end(ap); + trace_kvm_vcpu_ioctl(cpu->cpu_index, type, arg); ret = ioctl(cpu->kvm_fd, type, arg); if (ret == -1) { ret = -errno; diff --git a/trace-events b/trace-events index 55e80be1d1..d5bc7a5589 100644 --- a/trace-events +++ b/trace-events @@ -1153,3 +1153,8 @@ virtio_ccw_new_device(int cssid, int ssid, int schid, int devno, const char *dev # migration.c migrate_set_state(int new_state) "new state %d" + +# kvm-all.c +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" |