diff --git a/lib/include/openamp/virtio.h b/lib/include/openamp/virtio.h
index 278d2da7..091ba744 100644
--- a/lib/include/openamp/virtio.h
+++ b/lib/include/openamp/virtio.h
@@ -118,6 +118,12 @@ struct virtio_device_id {
  */
 #define VIRTIO_F_NOTIFY_ON_EMPTY (1 << 24)
 
+/*
+ * This feature indicates that the device accepts arbitrary
+ * descriptor layouts.
+ */
+#define VIRTIO_F_ANY_LAYOUT (1 << 27)
+
 /*
  * The guest should never negotiate this feature; it
  * is used to detect faulty drivers.