qdev: introduce reset call back for qbus level
and make it called via qbus_reset_all().
The qbus reset callback will be used by pci bus reset.
Signed-off-by: Isaku Yamahata <yamahata@valinux.co.jp>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
diff --git a/hw/qdev.c b/hw/qdev.c
index 92ccc8d..b76da07 100644
--- a/hw/qdev.c
+++ b/hw/qdev.c
@@ -314,9 +314,17 @@
return main_system_bus;
}
+static int qbus_reset_one(BusState *bus, void *opaque)
+{
+ if (bus->info->reset) {
+ return bus->info->reset(bus);
+ }
+ return 0;
+}
+
void qbus_reset_all(BusState *bus)
{
- qbus_walk_children(bus, qdev_reset_one, NULL, NULL);
+ qbus_walk_children(bus, qdev_reset_one, qbus_reset_one, NULL);
}
/* can be used as ->unplug() callback for the simple cases */
