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authorPrerna Saxena <prerna@linux.vnet.ibm.com>2010-08-11 17:16:03 +0530
committerAnthony Liguori <aliguori@us.ibm.com>2010-09-09 16:22:45 -0500
commit62dd89dea25b08796fcb83beeac3aea5f5a89c95 (patch)
treefe93f6c398ba4518ae0ff8274742c97a81cbd7c0
parentbd3c9aa5319ba2656a0dd8faae2c68b7feb39d1c (diff)
trace: Trace entry point of balloon request handler
Signed-off-by: Prerna Saxena <prerna@linux.vnet.ibm.com> Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
-rw-r--r--balloon.c2
-rw-r--r--trace-events4
2 files changed, 6 insertions, 0 deletions
diff --git a/balloon.c b/balloon.c
index 8e0b7f18de..0021fef4b8 100644
--- a/balloon.c
+++ b/balloon.c
@@ -29,6 +29,7 @@
#include "cpu-common.h"
#include "kvm.h"
#include "balloon.h"
+#include "trace.h"
static QEMUBalloonEvent *qemu_balloon_event;
@@ -43,6 +44,7 @@ void qemu_add_balloon_handler(QEMUBalloonEvent *func, void *opaque)
int qemu_balloon(ram_addr_t target, MonitorCompletion cb, void *opaque)
{
if (qemu_balloon_event) {
+ trace_balloon_event(qemu_balloon_event_opaque, target);
qemu_balloon_event(qemu_balloon_event_opaque, target, cb, opaque);
return 1;
} else {
diff --git a/trace-events b/trace-events
index b2c7f10e7e..c5fa0aa064 100644
--- a/trace-events
+++ b/trace-events
@@ -63,3 +63,7 @@ disable paio_submit(void *acb, void *opaque, unsigned long sector_num, unsigned
# ioport.c
disable cpu_in(unsigned int addr, unsigned int val) "addr %#x value %u"
disable cpu_out(unsigned int addr, unsigned int val) "addr %#x value %u"
+
+# balloon.c
+# Since requests are raised via monitor, not many tracepoints are needed.
+disable balloon_event(void *opaque, unsigned long addr) "opaque %p addr %lu"