qdev: Connect busses with their parent devices

This makes SysBus part of the root hierarchy and all busses children of
their respective parent DeviceState.

Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Andreas Färber <afaerber@suse.de>

diff --git a/hw/qdev.c b/hw/qdev.c
index 63012b5252ceff73bd2e36c3b8f26a9e4cec58fb..dc46e7bd10925c9126ff8135413eda2de8ed5d13 100644 (file)
--- a/hw/qdev.c
+++ b/hw/qdev.c
@@ -404,6 +404,7 @@ static void do_qbus_create_inplace(BusState *bus, const char *typename,
     if (parent) {
         QLIST_INSERT_HEAD(&parent->child_bus, bus, sibling);
         parent->num_child_bus++;
+        object_property_add_child(OBJECT(parent), bus->name, OBJECT(bus), NULL);
     } else if (bus != sysbus_get_default()) {
         /* TODO: once all bus devices are qdevified,
            only reset handler for main_system_bus should be registered here. */
@@ -656,6 +657,9 @@ static void device_initfn(Object *obj)
         class = object_class_get_parent(class);
     } while (class != object_class_by_name(TYPE_DEVICE));
     qdev_prop_set_globals(dev);
+
+    object_property_add_link(OBJECT(dev), "parent_bus", TYPE_BUS,
+                             (Object **)&dev->parent_bus, NULL);
 }
 
 /* Unlink device from bus and free the structure.  */

diff --git a/hw/sysbus.c b/hw/sysbus.c
index 2347f510bd642743b30a5675670bc65f9d52256c..9d8b1eaf7d8191d08267284f611fd4fafe5eb218 100644 (file)
--- a/hw/sysbus.c
+++ b/hw/sysbus.c
@@ -275,6 +275,9 @@ static void main_system_bus_create(void)
     qbus_create_inplace(main_system_bus, TYPE_SYSTEM_BUS, NULL,
                         "main-system-bus");
     main_system_bus->glib_allocated = true;
+    object_property_add_child(container_get(qdev_get_machine(),
+                                            "/unattached"),
+                              "sysbus", OBJECT(main_system_bus), NULL);
 }
 
 BusState *sysbus_get_default(void)