qdev: put all devices under /machine

Avoid cluttering too much the QOM root.
Signed-off-by: NPaolo Bonzini <pbonzini@redhat.com>
Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>

hw/piix_pci.c

@@ -276,7 +276,7 @@ static PCIBus *i440fx_common_init(const char *device_name,
     b = pci_bus_new(&s->busdev.qdev, NULL, pci_address_space,
                     address_space_io, 0);
     s->bus = b;
-    object_property_add_child(object_get_root(), "i440fx", OBJECT(dev), NULL);
+    object_property_add_child(qdev_get_machine(), "i440fx", OBJECT(dev), NULL);
     qdev_init_nofail(dev);
 
     d = pci_create_simple(b, 0, device_name);

hw/ppc_prep.c

@@ -615,7 +615,7 @@ static void ppc_prep_init (ram_addr_t ram_size,
     sys = sysbus_from_qdev(dev);
     pcihost = DO_UPCAST(PCIHostState, busdev, sys);
     pcihost->address_space = get_system_memory();
-    object_property_add_child(object_get_root(), "raven", OBJECT(dev), NULL);
+    object_property_add_child(qdev_get_machine(), "raven", OBJECT(dev), NULL);
     qdev_init_nofail(dev);
     pci_bus = (PCIBus *)qdev_get_child_bus(dev, "pci.0");
     if (pci_bus == NULL) {

hw/qdev-monitor.c

@@ -180,7 +180,7 @@ static Object *qdev_get_peripheral(void)
     static Object *dev;
 
     if (dev == NULL) {
-        dev = container_get("/peripheral");
+        dev = container_get("/machine/peripheral");
     }
 
     return dev;
@@ -191,7 +191,7 @@ static Object *qdev_get_peripheral_anon(void)
     static Object *dev;
 
     if (dev == NULL) {
-        dev = container_get("/peripheral-anon");
+        dev = container_get("/machine/peripheral-anon");
     }
 
     return dev;

hw/qdev.c

@@ -157,7 +157,7 @@ int qdev_init(DeviceState *dev)
         static int unattached_count = 0;
         gchar *name = g_strdup_printf("device[%d]", unattached_count++);
 
-        object_property_add_child(container_get("/unattached"), name,
+        object_property_add_child(container_get("/machine/unattached"), name,
                                   OBJECT(dev), NULL);
         g_free(name);
     }
@@ -668,6 +668,17 @@ void device_reset(DeviceState *dev)
     }
 }
 
+Object *qdev_get_machine(void)
+{
+    static Object *dev;
+
+    if (dev == NULL) {
+        dev = container_get("/machine");
+    }
+
+    return dev;
+}
+
 static TypeInfo device_type_info = {
     .name = TYPE_DEVICE,
     .parent = TYPE_OBJECT,

hw/qdev.h

@@ -349,6 +349,8 @@ BusInfo *qdev_get_bus_info(DeviceState *dev);
 
 Property *qdev_get_props(DeviceState *dev);
 
+Object *qdev_get_machine(void);
+
 /* FIXME: make this a link<> */
 void qdev_set_parent_bus(DeviceState *dev, BusState *bus);