diff --git a/hw/qdev.h b/hw/qdev.h
index 1e01a04..e13111f 100644
--- a/hw/qdev.h
+++ b/hw/qdev.h
@@ -69,9 +69,12 @@
 
 #define TYPE_DEVICE "device"
 #define DEVICE(obj) OBJECT_CHECK(DeviceState, (obj), TYPE_DEVICE)
+#define DEVICE_CLASS(klass) OBJECT_CLASS_CHECK(DeviceClass, (klass), TYPE_DEVICE)
+#define DEVICE_GET_CLASS(obj) OBJECT_GET_CLASS(DeviceClass, (obj), TYPE_DEVICE)
 
 typedef struct DeviceClass {
     ObjectClass parent_class;
+    DeviceInfo *info;
 } DeviceClass;
 
 /* This structure should not be accessed directly.  We declare it here
@@ -83,7 +86,6 @@
     enum DevState state;
     QemuOpts *opts;
     int hotplugged;
-    DeviceInfo *info;
     BusState *parent_bus;
     int num_gpio_out;
     qemu_irq *gpio_out;
@@ -389,9 +391,19 @@
 void error_set_from_qdev_prop_error(Error **errp, int ret, DeviceState *dev,
                                     Property *prop, const char *value);
 
+DeviceInfo *qdev_get_info(DeviceState *dev);
+
 static inline const char *qdev_fw_name(DeviceState *dev)
 {
-    return dev->info->fw_name ? : dev->info->alias ? : dev->info->name;
+    DeviceInfo *info = qdev_get_info(dev);
+
+    if (info->fw_name) {
+        return info->fw_name;
+    } else if (info->alias) {
+        return info->alias;
+    }
+
+    return info->name;
 }
 
 char *qdev_get_fw_dev_path(DeviceState *dev);