1 // SPDX-License-Identifier: GPL-2.0+
3 * Root node for system services
5 * Copyright (c) 2018 Heinrich Schuchardt
10 #include <efi_loader.h>
12 const efi_guid_t efi_u_boot_guid = U_BOOT_GUID;
15 struct efi_device_path_vendor vendor;
16 struct efi_device_path end;
20 * efi_root_node_register() - create root node
22 * Create the root node on which we install all protocols that are
23 * not related to a loaded image or a driver.
27 efi_status_t efi_root_node_register(void)
29 efi_handle_t root = NULL;
30 struct efi_root_dp *dp;
32 /* Create device path protocol */
33 dp = calloc(1, sizeof(*dp));
35 return EFI_OUT_OF_RESOURCES;
37 /* Fill vendor node */
38 dp->vendor.dp.type = DEVICE_PATH_TYPE_HARDWARE_DEVICE;
39 dp->vendor.dp.sub_type = DEVICE_PATH_SUB_TYPE_VENDOR;
40 dp->vendor.dp.length = sizeof(struct efi_device_path_vendor);
41 dp->vendor.guid = efi_u_boot_guid;
44 dp->end.type = DEVICE_PATH_TYPE_END;
45 dp->end.sub_type = DEVICE_PATH_SUB_TYPE_END;
46 dp->end.length = sizeof(struct efi_device_path);
48 /* Create root node and install protocols */
49 return EFI_CALL(efi_install_multiple_protocol_interfaces(&root,
50 /* Device path protocol */
51 &efi_guid_device_path, dp,
52 /* Device path to text protocol */
53 &efi_guid_device_path_to_text_protocol,
54 (void *)&efi_device_path_to_text,
55 /* Device path utilities protocol */
56 &efi_guid_device_path_utilities_protocol,
57 (void *)&efi_device_path_utilities,
58 /* Unicode collation protocol */
59 &efi_guid_unicode_collation_protocol,
60 (void *)&efi_unicode_collation_protocol,
61 #if CONFIG_IS_ENABLED(EFI_LOADER_HII)
62 /* HII string protocol */
63 &efi_guid_hii_string_protocol,
64 (void *)&efi_hii_string,
65 /* HII database protocol */
66 &efi_guid_hii_database_protocol,
67 (void *)&efi_hii_database,
68 /* HII configuration routing protocol */
69 &efi_guid_hii_config_routing_protocol,
70 (void *)&efi_hii_config_routing,