@@ -70,6 +70,8 @@ Clock *qdev_get_clock_out(DeviceState *dev, const char *name);
*
* Set the source clock of input clock @name of device @dev to @source.
* @source period update will be propagated to @name clock.
+ *
+ * Must be called before @dev is realized.
*/
void qdev_connect_clock_in(DeviceState *dev, const char *name, Clock *source);
@@ -186,5 +186,6 @@ Clock *qdev_alias_clock(DeviceState *dev, const char *name,
void qdev_connect_clock_in(DeviceState *dev, const char *name, Clock *source)
{
+ assert(!dev->realized);
clock_set_source(qdev_get_clock_in(dev, name), source);
}
Clock canonical name is set in device_set_realized (see the block added to hw/core/qdev.c in commit 0e6934f264). If we connect a clock after the device is realized, this code is not executed. This is currently not a problem as this name is only used for trace events, however this disrupt tracing. Add a comment to document qdev_connect_clock_in() must be called before the device is realized, and assert this condition. Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org> --- include/hw/qdev-clock.h | 2 ++ hw/core/qdev-clock.c | 1 + 2 files changed, 3 insertions(+)