commit b4694b7ce8bd87c4b9c6c14ad74075a31b15c784
author Isaku Yamahata <yamahata@valinux.co.jp> Fri Nov 19 18:56:00 2010 +0900
committer Michael S. Tsirkin <mst@redhat.com> Mon Nov 22 10:00:07 2010 +0200
tree 08d67544f6b12d80af2c9c1ac793b8d29b86d1d8
parent ec990eb622ad46df5ddcb1e94c418c271894d416

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>

hw/qdev.c

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 */

hw/qdev.h

diff --git a/hw/qdev.h b/hw/qdev.h
index e5ed333..5ac084f 100644
--- a/hw/qdev.h
+++ b/hw/qdev.h
@@ -49,12 +49,14 @@
 
 typedef void (*bus_dev_printfn)(Monitor *mon, DeviceState *dev, int indent);
 typedef char *(*bus_get_dev_path)(DeviceState *dev);
+typedef int (qbus_resetfn)(BusState *bus);
 
 struct BusInfo {
     const char *name;
     size_t size;
     bus_dev_printfn print_dev;
     bus_get_dev_path get_dev_path;
+    qbus_resetfn *reset;
     Property *props;
 };