container: make a decendent of Object

Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
---
v1 -> v2
 - Add license (Paolo)

qom/Makefile

@@ -1 +1 @@
-qom-y = object.o
+qom-y = object.o container.o

qom/container.c

@@ -0,0 +1,27 @@
+/*
+ * Device Container
+ *
+ * Copyright IBM, Corp. 2012
+ *
+ * Authors:
+ *  Anthony Liguori   <aliguori@us.ibm.com>
+ *
+ * This work is licensed under the terms of the GNU GPL, version 2 or later.
+ * See the COPYING file in the top-level directory.
+ */
+
+#include "qemu/object.h"
+#include "module.h"
+
+static TypeInfo container_info = {
+    .name          = "container",
+    .instance_size = sizeof(Object),
+    .parent        = TYPE_OBJECT,
+};
+
+static void container_init(void)
+{
+    type_register_static(&container_info);
+}
+
+device_init(container_init);

qom/object.c

@@ -662,14 +662,13 @@ const char *object_property_get_type(Object *obj, const char *name, Error **errp
 
 Object *object_get_root(void)
 {
-    static DeviceState *object_root;
+    static Object *root;
 
-    if (!object_root) {
-        object_root = qdev_create(NULL, "container");
-        qdev_init_nofail(object_root);
+    if (!root) {
+        root = object_new("container");
     }
 
-    return OBJECT(object_root);
+    return root;
 }
 
 static void object_get_child_property(Object *obj, Visitor *v, void *opaque,