diff --git a/hw/core/sysbus.c b/hw/core/sysbus.c
index 9f1d5b2d6d..ad34fb7344 100644
--- a/hw/core/sysbus.c
+++ b/hw/core/sysbus.c
@@ -298,11 +298,6 @@ static char *sysbus_get_fw_dev_path(DeviceState *dev)
     return g_strdup(qdev_fw_name(dev));
 }
 
-MemoryRegion *sysbus_address_space(SysBusDevice *dev)
-{
-    return get_system_memory();
-}
-
 static void sysbus_device_class_init(ObjectClass *klass, void *data)
 {
     DeviceClass *k = DEVICE_CLASS(klass);
diff --git a/include/hw/sysbus.h b/include/hw/sysbus.h
index 14dbc22d0c..3cb29a480e 100644
--- a/include/hw/sysbus.h
+++ b/include/hw/sysbus.h
@@ -83,7 +83,6 @@ void sysbus_mmio_map(SysBusDevice *dev, int n, hwaddr addr);
 void sysbus_mmio_map_overlap(SysBusDevice *dev, int n, hwaddr addr,
                              int priority);
 void sysbus_mmio_unmap(SysBusDevice *dev, int n);
-MemoryRegion *sysbus_address_space(SysBusDevice *dev);
 
 bool sysbus_realize(SysBusDevice *dev, Error **errp);
 bool sysbus_realize_and_unref(SysBusDevice *dev, Error **errp);