From patchwork Wed Aug 11 11:46:03 2010 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Subject: [Tracing,2/2] More Trace events Date: Wed, 11 Aug 2010 01:46:03 -0000 From: Prerna Saxena X-Patchwork-Id: 61471 Message-Id: <20100811171603.60e79c96@zephyr> To: qemu-devel Cc: Mahesh , Ananth Narayan , Stefan Hajnoczi [PATCH 2/2] Trace event for tracking entry point of balloon request handler. Signed-off-by: Prerna Saxena --- balloon.c | 2 ++ trace-events | 4 ++++ 2 files changed, 6 insertions(+), 0 deletions(-) diff --git a/balloon.c b/balloon.c index 8e0b7f1..0021fef 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 7dbd08f..d0d9f50 100644 --- a/trace-events +++ b/trace-events @@ -63,3 +63,7 @@ paio_submit(void *acb, void *opaque, unsigned long sector_num, unsigned long nb_ # ioport.c cpu_in(unsigned int addr, unsigned int val) "addr %u value %u" cpu_out(unsigned int addr, unsigned int val) "addr %u value %u" + +# balloon.c +# # Since requests are raised via monitor, not many tracepoints are needed. +balloon_event(void *opaque, unsigned long addr) "opaque %p addr %lu"