From patchwork Mon Sep 6 15:14:11 2010 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Subject: [14/14] trace: Trace entry point of balloon request handler From: Stefan Hajnoczi X-Patchwork-Id: 63930 Message-Id: <1283786051-29530-15-git-send-email-stefanha@linux.vnet.ibm.com> To: Cc: Blue Swirl , Anthony Liguori , "Michael S. Tsirkin" , Stefan Hajnoczi , Prerna Saxena Date: Mon, 6 Sep 2010 16:14:11 +0100 From: Prerna Saxena Signed-off-by: Prerna Saxena Signed-off-by: Stefan Hajnoczi --- 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 b2c7f10..c5fa0aa 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"