rtc: make piix3 set the rtc as a child (v2)

Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>

hw/pc_piix.c

@@ -205,6 +205,17 @@ static void pc_init1(MemoryRegion *system_memory,
         }
     }
 
+    /* FIXME there's some major spaghetti here.  Somehow we create the devices
+     * on the PIIX before we actually create it.  We create the PIIX3 deep in
+     * the recess of the i440fx creation too and then lose the DeviceState.
+     *
+     * For now, let's "fix" this by making judicious use of paths.  This is not
+     * generally the right way to do this.
+     */
+
+    qdev_property_add_child(qdev_resolve_path("/i440fx/piix3", NULL),
+                            "rtc", (DeviceState *)rtc_state, NULL);
+
     audio_init(gsi, pci_enabled ? pci_bus : NULL);
 
     pc_cmos_init(below_4g_mem_size, above_4g_mem_size, boot_device,

hw/piix_pci.c

@@ -288,6 +288,7 @@ static PCIBus *i440fx_common_init(const char *device_name,
                     address_space_io, 0);
     s->bus = b;
     qdev_init_nofail(dev);
+    qdev_property_add_child(qdev_get_root(), "i440fx", dev, NULL);
 
     d = pci_create_simple(b, 0, device_name);
     *pi440fx_state = DO_UPCAST(PCII440FXState, dev, d);
@@ -323,6 +324,8 @@ static PCIBus *i440fx_common_init(const char *device_name,
                 pci_create_simple_multifunction(b, -1, true, "PIIX3"));
         pci_bus_irqs(b, piix3_set_irq, pci_slot_get_pirq, piix3,
                 PIIX_NUM_PIRQS);
+
+        qdev_property_add_child(dev, "piix3", &piix3->dev.qdev, NULL);
     }
     piix3->pic = pic;