1 // SPDX-License-Identifier: GPL-2.0+
5 * Copyright (c) 2016-2018 Alexander Graf et al.
9 #include <efi_loader.h>
11 #define OBJ_LIST_NOT_INITIALIZED 1
13 static efi_status_t efi_obj_list_initialized = OBJ_LIST_NOT_INITIALIZED;
16 * efi_init_platform_lang() - define supported languages
18 * Set the PlatformLangCodes and PlatformLang variables.
22 static efi_status_t efi_init_platform_lang(void)
25 efi_uintn_t data_size = 0;
26 char *lang = CONFIG_EFI_PLATFORM_LANG_CODES;
30 * Variable PlatformLangCodes defines the language codes that the
31 * machine can support.
33 ret = EFI_CALL(efi_set_variable(L"PlatformLangCodes",
34 &efi_global_variable_guid,
35 EFI_VARIABLE_BOOTSERVICE_ACCESS |
36 EFI_VARIABLE_RUNTIME_ACCESS,
37 sizeof(CONFIG_EFI_PLATFORM_LANG_CODES),
38 CONFIG_EFI_PLATFORM_LANG_CODES));
39 if (ret != EFI_SUCCESS)
43 * Variable PlatformLang defines the language that the machine has been
46 ret = EFI_CALL(efi_get_variable(L"PlatformLang",
47 &efi_global_variable_guid,
48 NULL, &data_size, &pos));
49 if (ret == EFI_BUFFER_TOO_SMALL) {
50 /* The variable is already set. Do not change it. */
56 * The list of supported languages is semicolon separated. Use the first
57 * language to initialize PlatformLang.
59 pos = strchr(lang, ';');
63 ret = EFI_CALL(efi_set_variable(L"PlatformLang",
64 &efi_global_variable_guid,
65 EFI_VARIABLE_NON_VOLATILE |
66 EFI_VARIABLE_BOOTSERVICE_ACCESS |
67 EFI_VARIABLE_RUNTIME_ACCESS,
68 1 + strlen(lang), lang));
70 if (ret != EFI_SUCCESS)
71 printf("EFI: cannot initialize platform language settings\n");
76 * efi_init_obj_list() - Initialize and populate EFI object list
80 efi_status_t efi_init_obj_list(void)
82 u64 os_indications_supported = 0; /* None */
83 efi_status_t ret = EFI_SUCCESS;
85 /* Initialize once only */
86 if (efi_obj_list_initialized != OBJ_LIST_NOT_INITIALIZED)
87 return efi_obj_list_initialized;
89 /* Define supported languages */
90 ret = efi_init_platform_lang();
91 if (ret != EFI_SUCCESS)
94 /* Indicate supported features */
95 ret = EFI_CALL(efi_set_variable(L"OsIndicationsSupported",
96 &efi_global_variable_guid,
97 EFI_VARIABLE_BOOTSERVICE_ACCESS |
98 EFI_VARIABLE_RUNTIME_ACCESS,
99 sizeof(os_indications_supported),
100 &os_indications_supported));
101 if (ret != EFI_SUCCESS)
104 /* Initialize system table */
105 ret = efi_initialize_system_table();
106 if (ret != EFI_SUCCESS)
109 /* Initialize root node */
110 ret = efi_root_node_register();
111 if (ret != EFI_SUCCESS)
114 /* Initialize EFI driver uclass */
115 ret = efi_driver_init();
116 if (ret != EFI_SUCCESS)
119 ret = efi_console_register();
120 if (ret != EFI_SUCCESS)
122 #ifdef CONFIG_PARTITIONS
123 ret = efi_disk_register();
124 if (ret != EFI_SUCCESS)
127 #if defined(CONFIG_LCD) || defined(CONFIG_DM_VIDEO)
128 ret = efi_gop_register();
129 if (ret != EFI_SUCCESS)
133 ret = efi_net_register();
134 if (ret != EFI_SUCCESS)
137 #ifdef CONFIG_GENERATE_ACPI_TABLE
138 ret = efi_acpi_register();
139 if (ret != EFI_SUCCESS)
142 #ifdef CONFIG_GENERATE_SMBIOS_TABLE
143 ret = efi_smbios_register();
144 if (ret != EFI_SUCCESS)
147 ret = efi_watchdog_register();
148 if (ret != EFI_SUCCESS)
151 /* Initialize EFI runtime services */
152 ret = efi_reset_system_init();
153 if (ret != EFI_SUCCESS)
157 efi_obj_list_initialized = ret;