From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([140.186.70.92]:40775) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1QeoP9-0001EM-6x for qemu-devel@nongnu.org; Thu, 07 Jul 2011 09:14:13 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1QeoP6-00063H-49 for qemu-devel@nongnu.org; Thu, 07 Jul 2011 09:14:06 -0400 Received: from mx1.redhat.com ([209.132.183.28]:10324) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1QeoP5-000635-Jp for qemu-devel@nongnu.org; Thu, 07 Jul 2011 09:14:03 -0400 From: Amit Shah Date: Thu, 7 Jul 2011 18:43:49 +0530 Message-Id: <2316a4ff8ecb2c840cf16dcba0bff7b02ef80b29.1310044223.git.amit.shah@redhat.com> In-Reply-To: References: In-Reply-To: References: Subject: [Qemu-devel] [PATCH 1/3] virtio-serial-bus: Add trace events List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: Anthony Liguori Cc: Amit Shah , qemu list Add some trace events for messages passed between the guest and host. Signed-off-by: Amit Shah --- hw/virtio-serial-bus.c | 7 +++++++ trace-events | 6 ++++++ 2 files changed, 13 insertions(+), 0 deletions(-) diff --git a/hw/virtio-serial-bus.c b/hw/virtio-serial-bus.c index 7f6db7b..9859f9f 100644 --- a/hw/virtio-serial-bus.c +++ b/hw/virtio-serial-bus.c @@ -19,6 +19,7 @@ #include "monitor.h" #include "qemu-queue.h" #include "sysbus.h" +#include "trace.h" #include "virtio-serial.h" /* The virtio-serial bus on top of which the ports will ride as devices */ @@ -221,6 +222,7 @@ static size_t send_control_event(VirtIOSerialPort *port, uint16_t event, stw_p(&cpkt.event, event); stw_p(&cpkt.value, value); + trace_virtio_serial_send_control_event(port->id, event, value); return send_control_msg(port, &cpkt, sizeof(cpkt)); } @@ -302,6 +304,7 @@ void virtio_serial_throttle_port(VirtIOSerialPort *port, bool throttle) return; } + trace_virtio_serial_throttle_port(port->id, throttle); port->throttled = throttle; if (throttle) { return; @@ -328,6 +331,8 @@ static void handle_control_message(VirtIOSerial *vser, void *buf, size_t len) cpkt.event = lduw_p(&gcpkt->event); cpkt.value = lduw_p(&gcpkt->value); + trace_virtio_serial_handle_control_message(cpkt.event, cpkt.value); + if (cpkt.event == VIRTIO_CONSOLE_DEVICE_READY) { if (!cpkt.value) { error_report("virtio-serial-bus: Guest failure in adding device %s", @@ -351,6 +356,8 @@ static void handle_control_message(VirtIOSerial *vser, void *buf, size_t len) return; } + trace_virtio_serial_handle_control_message_port(port->id); + info = DO_UPCAST(VirtIOSerialPortInfo, qdev, port->dev.info); switch(cpkt.event) { diff --git a/trace-events b/trace-events index bebf612..59420e8 100644 --- a/trace-events +++ b/trace-events @@ -46,6 +46,12 @@ disable virtio_queue_notify(void *vdev, int n, void *vq) "vdev %p n %d vq %p" disable virtio_irq(void *vq) "vq %p" disable virtio_notify(void *vdev, void *vq) "vdev %p vq %p" +# hw/virtio-serial-bus.c +disable virtio_serial_send_control_event(unsigned int port, uint16_t event, uint16_t value) "port %u, event %u, value %u" +disable virtio_serial_throttle_port(unsigned int port, bool throttle) "port %u, throttle %d" +disable virtio_serial_handle_control_message(uint16_t event, uint16_t value) "event %u, value %u" +disable virtio_serial_handle_control_message_port(unsigned int port) "port %u" + # block.c disable multiwrite_cb(void *mcb, int ret) "mcb %p ret %d" disable bdrv_aio_multiwrite(void *mcb, int num_callbacks, int num_reqs) "mcb %p num_callbacks %d num_reqs %d" -- 1.7.5.4