efi_loader: assign HII protocols to root node

We should not install the HII protocols on every loaded image. It is
sufficient to install them once on the root node.

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
diff --git a/lib/efi_loader/efi_boottime.c b/lib/efi_loader/efi_boottime.c
index b215bd7..31d11b8 100644
--- a/lib/efi_loader/efi_boottime.c
+++ b/lib/efi_loader/efi_boottime.c
@@ -1569,26 +1569,6 @@
 	if (ret != EFI_SUCCESS)
 		goto failure;
 
-#if CONFIG_IS_ENABLED(EFI_LOADER_HII)
-	ret = efi_add_protocol(&obj->header,
-			       &efi_guid_hii_string_protocol,
-			       (void *)&efi_hii_string);
-	if (ret != EFI_SUCCESS)
-		goto failure;
-
-	ret = efi_add_protocol(&obj->header,
-			       &efi_guid_hii_database_protocol,
-			       (void *)&efi_hii_database);
-	if (ret != EFI_SUCCESS)
-		goto failure;
-
-	ret = efi_add_protocol(&obj->header,
-			       &efi_guid_hii_config_routing_protocol,
-			       (void *)&efi_hii_config_routing);
-	if (ret != EFI_SUCCESS)
-		goto failure;
-#endif
-
 	*info_ptr = info;
 	*handle_ptr = obj;
 
diff --git a/lib/efi_loader/efi_root_node.c b/lib/efi_loader/efi_root_node.c
index b056ba3..b58d9d8 100644
--- a/lib/efi_loader/efi_root_node.c
+++ b/lib/efi_loader/efi_root_node.c
@@ -74,6 +74,26 @@
 	if (ret != EFI_SUCCESS)
 		goto failure;
 
+#if CONFIG_IS_ENABLED(EFI_LOADER_HII)
+	/* Install HII string protocol */
+	ret = efi_add_protocol(root, &efi_guid_hii_string_protocol,
+			       (void *)&efi_hii_string);
+	if (ret != EFI_SUCCESS)
+		goto failure;
+
+	/* Install HII database protocol */
+	ret = efi_add_protocol(root, &efi_guid_hii_database_protocol,
+			       (void *)&efi_hii_database);
+	if (ret != EFI_SUCCESS)
+		goto failure;
+
+	/* Install HII configuration routing protocol */
+	ret = efi_add_protocol(root, &efi_guid_hii_config_routing_protocol,
+			       (void *)&efi_hii_config_routing);
+	if (ret != EFI_SUCCESS)
+		goto failure;
+#endif
+
 failure:
 	return ret;
 }