+static void vhost_eventfd_add(MemoryListener *listener,
+ MemoryRegionSection *section,
+ bool match_data, uint64_t data, EventNotifier *e)
+{
+}
+
+static void vhost_eventfd_del(MemoryListener *listener,
+ MemoryRegionSection *section,
+ bool match_data, uint64_t data, EventNotifier *e)
+{
+}
+
+int vhost_dev_init(struct vhost_dev *hdev, int devfd, const char *devpath,
+ bool force)