virtio-console: Add some trace events
Add some trace events for messages passed between the char layer and the virtio-serial bus. Signed-off-by: Amit Shah <amit.shah@redhat.com>
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@ -12,6 +12,7 @@
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#include "qemu-char.h"
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#include "qemu-char.h"
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#include "qemu-error.h"
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#include "qemu-error.h"
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#include "trace.h"
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#include "virtio-serial.h"
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#include "virtio-serial.h"
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typedef struct VirtConsole {
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typedef struct VirtConsole {
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@ -24,8 +25,12 @@ typedef struct VirtConsole {
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static ssize_t flush_buf(VirtIOSerialPort *port, const uint8_t *buf, size_t len)
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static ssize_t flush_buf(VirtIOSerialPort *port, const uint8_t *buf, size_t len)
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{
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{
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VirtConsole *vcon = DO_UPCAST(VirtConsole, port, port);
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VirtConsole *vcon = DO_UPCAST(VirtConsole, port, port);
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ssize_t ret;
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return qemu_chr_write(vcon->chr, buf, len);
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ret = qemu_chr_write(vcon->chr, buf, len);
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trace_virtio_console_flush_buf(port->id, len, ret);
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return ret;
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}
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}
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/* Callback function that's called when the guest opens the port */
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/* Callback function that's called when the guest opens the port */
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@ -57,6 +62,7 @@ static void chr_read(void *opaque, const uint8_t *buf, int size)
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{
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{
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VirtConsole *vcon = opaque;
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VirtConsole *vcon = opaque;
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trace_virtio_console_chr_read(vcon->port.id, size);
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virtio_serial_write(&vcon->port, buf, size);
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virtio_serial_write(&vcon->port, buf, size);
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}
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}
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@ -64,6 +70,7 @@ static void chr_event(void *opaque, int event)
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{
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{
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VirtConsole *vcon = opaque;
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VirtConsole *vcon = opaque;
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trace_virtio_console_chr_event(vcon->port.id, event);
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switch (event) {
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switch (event) {
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case CHR_EVENT_OPENED:
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case CHR_EVENT_OPENED:
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virtio_serial_open(&vcon->port);
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virtio_serial_open(&vcon->port);
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@ -52,6 +52,11 @@ disable virtio_serial_throttle_port(unsigned int port, bool throttle) "port %u,
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disable virtio_serial_handle_control_message(uint16_t event, uint16_t value) "event %u, value %u"
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disable virtio_serial_handle_control_message(uint16_t event, uint16_t value) "event %u, value %u"
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disable virtio_serial_handle_control_message_port(unsigned int port) "port %u"
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disable virtio_serial_handle_control_message_port(unsigned int port) "port %u"
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# hw/virtio-console.c
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disable virtio_console_flush_buf(unsigned int port, size_t len, ssize_t ret) "port %u, in_len %zu, out_len %zd"
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disable virtio_console_chr_read(unsigned int port, int size) "port %u, size %d"
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disable virtio_console_chr_event(unsigned int port, int event) "port %u, event %d"
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# block.c
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# block.c
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disable multiwrite_cb(void *mcb, int ret) "mcb %p ret %d"
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disable multiwrite_cb(void *mcb, int ret) "mcb %p ret %d"
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disable bdrv_aio_multiwrite(void *mcb, int num_callbacks, int num_reqs) "mcb %p num_callbacks %d num_reqs %d"
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disable bdrv_aio_multiwrite(void *mcb, int num_callbacks, int num_reqs) "mcb %p num_callbacks %d num_reqs %d"
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