cmd/efidebug.c

   1 // SPDX-License-Identifier: GPL-2.0+
   2 /*
   3  *  UEFI Shell-like command
   4  *
   5  *  Copyright (c) 2018 AKASHI Takahiro, Linaro Limited
   6  */
   7
   8 #include <charset.h>
   9 #include <common.h>
  10 #include <command.h>
  11 #include <efi_loader.h>
  12 #include <exports.h>
  13 #include <hexdump.h>
  14 #include <log.h>
  15 #include <malloc.h>
  16 #include <mapmem.h>
  17 #include <search.h>
  18 #include <linux/ctype.h>
  19
  20 #define BS systab.boottime
  21
  22 /**
  23  * efi_get_device_handle_info() - get information of UEFI device
  24  *
  25  * @handle:             Handle of UEFI device
  26  * @dev_path_text:      Pointer to text of device path
  27  * Return:              0 on success, -1 on failure
  28  *
  29  * Currently return a formatted text of device path.
  30  */
  31 static int efi_get_device_handle_info(efi_handle_t handle, u16 **dev_path_text)
  32 {
  33         struct efi_device_path *dp;
  34         efi_status_t ret;
  35
  36         ret = EFI_CALL(BS->open_protocol(handle, &efi_guid_device_path,
  37                                          (void **)&dp, NULL /* FIXME */, NULL,
  38                                          EFI_OPEN_PROTOCOL_GET_PROTOCOL));
  39         if (ret == EFI_SUCCESS) {
  40                 *dev_path_text = efi_dp_str(dp);
  41                 return 0;
  42         } else {
  43                 return -1;
  44         }
  45 }
  46
  47 #define EFI_HANDLE_WIDTH ((int)sizeof(efi_handle_t) * 2)
  48
  49 static const char spc[] = "                ";
  50 static const char sep[] = "================";
  51
  52 /**
  53  * do_efi_show_devices() - show UEFI devices
  54  *
  55  * @cmdtp:      Command table
  56  * @flag:       Command flag
  57  * @argc:       Number of arguments
  58  * @argv:       Argument array
  59  * Return:      CMD_RET_SUCCESS on success, CMD_RET_RET_FAILURE on failure
  60  *
  61  * Implement efidebug "devices" sub-command.
  62  * Show all UEFI devices and their information.
  63  */
  64 static int do_efi_show_devices(struct cmd_tbl *cmdtp, int flag,
  65                                int argc, char *const argv[])
  66 {
  67         efi_handle_t *handles;
  68         efi_uintn_t num, i;
  69         u16 *dev_path_text;
  70         efi_status_t ret;
  71
  72         ret = EFI_CALL(efi_locate_handle_buffer(ALL_HANDLES, NULL, NULL,
  73                                                 &num, &handles));
  74         if (ret != EFI_SUCCESS)
  75                 return CMD_RET_FAILURE;
  76
  77         if (!num)
  78                 return CMD_RET_SUCCESS;
  79
  80         printf("Device%.*s Device Path\n", EFI_HANDLE_WIDTH - 6, spc);
  81         printf("%.*s ====================\n", EFI_HANDLE_WIDTH, sep);
  82         for (i = 0; i < num; i++) {
  83                 if (!efi_get_device_handle_info(handles[i], &dev_path_text)) {
  84                         printf("%p %ls\n", handles[i], dev_path_text);
  85                         efi_free_pool(dev_path_text);
  86                 }
  87         }
  88
  89         efi_free_pool(handles);
  90
  91         return CMD_RET_SUCCESS;
  92 }
  93
  94 /**
  95  * efi_get_driver_handle_info() - get information of UEFI driver
  96  *
  97  * @handle:             Handle of UEFI device
  98  * @driver_name:        Driver name
  99  * @image_path:         Pointer to text of device path
 100  * Return:              0 on success, -1 on failure
 101  *
 102  * Currently return no useful information as all UEFI drivers are
 103  * built-in..
 104  */
 105 static int efi_get_driver_handle_info(efi_handle_t handle, u16 **driver_name,
 106                                       u16 **image_path)
 107 {
 108         struct efi_handler *handler;
 109         struct efi_loaded_image *image;
 110         efi_status_t ret;
 111
 112         /*
 113          * driver name
 114          * TODO: support EFI_COMPONENT_NAME2_PROTOCOL
 115          */
 116         *driver_name = NULL;
 117
 118         /* image name */
 119         ret = efi_search_protocol(handle, &efi_guid_loaded_image, &handler);
 120         if (ret != EFI_SUCCESS) {
 121                 *image_path = NULL;
 122                 return 0;
 123         }
 124
 125         image = handler->protocol_interface;
 126         *image_path = efi_dp_str(image->file_path);
 127
 128         return 0;
 129 }
 130
 131 /**
 132  * do_efi_show_drivers() - show UEFI drivers
 133  *
 134  * @cmdtp:      Command table
 135  * @flag:       Command flag
 136  * @argc:       Number of arguments
 137  * @argv:       Argument array
 138  * Return:      CMD_RET_SUCCESS on success, CMD_RET_RET_FAILURE on failure
 139  *
 140  * Implement efidebug "drivers" sub-command.
 141  * Show all UEFI drivers and their information.
 142  */
 143 static int do_efi_show_drivers(struct cmd_tbl *cmdtp, int flag,
 144                                int argc, char *const argv[])
 145 {
 146         efi_handle_t *handles;
 147         efi_uintn_t num, i;
 148         u16 *driver_name, *image_path_text;
 149         efi_status_t ret;
 150
 151         ret = EFI_CALL(efi_locate_handle_buffer(
 152                                 BY_PROTOCOL, &efi_guid_driver_binding_protocol,
 153                                 NULL, &num, &handles));
 154         if (ret != EFI_SUCCESS)
 155                 return CMD_RET_FAILURE;
 156
 157         if (!num)
 158                 return CMD_RET_SUCCESS;
 159
 160         printf("Driver%.*s Name                 Image Path\n",
 161                EFI_HANDLE_WIDTH - 6, spc);
 162         printf("%.*s ==================== ====================\n",
 163                EFI_HANDLE_WIDTH, sep);
 164         for (i = 0; i < num; i++) {
 165                 if (!efi_get_driver_handle_info(handles[i], &driver_name,
 166                                                 &image_path_text)) {
 167                         if (image_path_text)
 168                                 printf("%p %-20ls %ls\n", handles[i],
 169                                        driver_name, image_path_text);
 170                         else
 171                                 printf("%p %-20ls <built-in>\n",
 172                                        handles[i], driver_name);
 173                         efi_free_pool(driver_name);
 174                         efi_free_pool(image_path_text);
 175                 }
 176         }
 177
 178         efi_free_pool(handles);
 179
 180         return CMD_RET_SUCCESS;
 181 }
 182
 183 static const struct {
 184         const char *text;
 185         const efi_guid_t guid;
 186 } guid_list[] = {
 187         {
 188                 "Device Path",
 189                 EFI_DEVICE_PATH_PROTOCOL_GUID,
 190         },
 191         {
 192                 "Device Path To Text",
 193                 EFI_DEVICE_PATH_TO_TEXT_PROTOCOL_GUID,
 194         },
 195         {
 196                 "Device Path Utilities",
 197                 EFI_DEVICE_PATH_UTILITIES_PROTOCOL_GUID,
 198         },
 199         {
 200                 "Unicode Collation 2",
 201                 EFI_UNICODE_COLLATION_PROTOCOL2_GUID,
 202         },
 203         {
 204                 "Driver Binding",
 205                 EFI_DRIVER_BINDING_PROTOCOL_GUID,
 206         },
 207         {
 208                 "Simple Text Input",
 209                 EFI_SIMPLE_TEXT_INPUT_PROTOCOL_GUID,
 210         },
 211         {
 212                 "Simple Text Input Ex",
 213                 EFI_SIMPLE_TEXT_INPUT_EX_PROTOCOL_GUID,
 214         },
 215         {
 216                 "Simple Text Output",
 217                 EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL_GUID,
 218         },
 219         {
 220                 "Block IO",
 221                 EFI_BLOCK_IO_PROTOCOL_GUID,
 222         },
 223         {
 224                 "Simple File System",
 225                 EFI_SIMPLE_FILE_SYSTEM_PROTOCOL_GUID,
 226         },
 227         {
 228                 "Loaded Image",
 229                 EFI_LOADED_IMAGE_PROTOCOL_GUID,
 230         },
 231         {
 232                 "Graphics Output",
 233                 EFI_GRAPHICS_OUTPUT_PROTOCOL_GUID,
 234         },
 235         {
 236                 "HII String",
 237                 EFI_HII_STRING_PROTOCOL_GUID,
 238         },
 239         {
 240                 "HII Database",
 241                 EFI_HII_DATABASE_PROTOCOL_GUID,
 242         },
 243         {
 244                 "HII Config Routing",
 245                 EFI_HII_CONFIG_ROUTING_PROTOCOL_GUID,
 246         },
 247         {
 248                 "Load File2",
 249                 EFI_LOAD_FILE2_PROTOCOL_GUID,
 250         },
 251         {
 252                 "Simple Network",
 253                 EFI_SIMPLE_NETWORK_PROTOCOL_GUID,
 254         },
 255         {
 256                 "PXE Base Code",
 257                 EFI_PXE_BASE_CODE_PROTOCOL_GUID,
 258         },
 259         /* Configuration table GUIDs */
 260         {
 261                 "ACPI table",
 262                 EFI_ACPI_TABLE_GUID,
 263         },
 264         {
 265                 "device tree",
 266                 EFI_FDT_GUID,
 267         },
 268         {
 269                 "SMBIOS table",
 270                 SMBIOS_TABLE_GUID,
 271         },
 272         {
 273                 "Runtime properties",
 274                 EFI_RT_PROPERTIES_TABLE_GUID,
 275         },
 276 };
 277
 278 /**
 279  * get_guid_text - get string of GUID
 280  *
 281  * Return description of GUID.
 282  *
 283  * @guid:       GUID
 284  * Return:      description of GUID or NULL
 285  */
 286 static const char *get_guid_text(const void *guid)
 287 {
 288         int i;
 289
 290         for (i = 0; i < ARRAY_SIZE(guid_list); i++) {
 291                 /*
 292                  * As guidcmp uses memcmp() we can safely accept unaligned
 293                  * GUIDs.
 294                  */
 295                 if (!guidcmp(&guid_list[i].guid, guid))
 296                         return guid_list[i].text;
 297         }
 298
 299         return NULL;
 300 }
 301
 302 /**
 303  * do_efi_show_handles() - show UEFI handles
 304  *
 305  * @cmdtp:      Command table
 306  * @flag:       Command flag
 307  * @argc:       Number of arguments
 308  * @argv:       Argument array
 309  * Return:      CMD_RET_SUCCESS on success, CMD_RET_RET_FAILURE on failure
 310  *
 311  * Implement efidebug "dh" sub-command.
 312  * Show all UEFI handles and their information, currently all protocols
 313  * added to handle.
 314  */
 315 static int do_efi_show_handles(struct cmd_tbl *cmdtp, int flag,
 316                                int argc, char *const argv[])
 317 {
 318         efi_handle_t *handles;
 319         efi_guid_t **guid;
 320         efi_uintn_t num, count, i, j;
 321         const char *guid_text;
 322         efi_status_t ret;
 323
 324         ret = EFI_CALL(efi_locate_handle_buffer(ALL_HANDLES, NULL, NULL,
 325                                                 &num, &handles));
 326         if (ret != EFI_SUCCESS)
 327                 return CMD_RET_FAILURE;
 328
 329         if (!num)
 330                 return CMD_RET_SUCCESS;
 331
 332         printf("Handle%.*s Protocols\n", EFI_HANDLE_WIDTH - 6, spc);
 333         printf("%.*s ====================\n", EFI_HANDLE_WIDTH, sep);
 334         for (i = 0; i < num; i++) {
 335                 printf("%p", handles[i]);
 336                 ret = EFI_CALL(BS->protocols_per_handle(handles[i], &guid,
 337                                                         &count));
 338                 if (ret || !count) {
 339                         putc('\n');
 340                         continue;
 341                 }
 342
 343                 for (j = 0; j < count; j++) {
 344                         if (j)
 345                                 printf(", ");
 346                         else
 347                                 putc(' ');
 348
 349                         guid_text = get_guid_text(guid[j]);
 350                         if (guid_text)
 351                                 puts(guid_text);
 352                         else
 353                                 printf("%pUl", guid[j]);
 354                 }
 355                 putc('\n');
 356         }
 357
 358         efi_free_pool(handles);
 359
 360         return CMD_RET_SUCCESS;
 361 }
 362
 363 /**
 364  * do_efi_show_images() - show UEFI images
 365  *
 366  * @cmdtp:      Command table
 367  * @flag:       Command flag
 368  * @argc:       Number of arguments
 369  * @argv:       Argument array
 370  * Return:      CMD_RET_SUCCESS on success, CMD_RET_RET_FAILURE on failure
 371  *
 372  * Implement efidebug "images" sub-command.
 373  * Show all UEFI loaded images and their information.
 374  */
 375 static int do_efi_show_images(struct cmd_tbl *cmdtp, int flag,
 376                               int argc, char *const argv[])
 377 {
 378         efi_print_image_infos(NULL);
 379
 380         return CMD_RET_SUCCESS;
 381 }
 382
 383 static const char * const efi_mem_type_string[] = {
 384         [EFI_RESERVED_MEMORY_TYPE] = "RESERVED",
 385         [EFI_LOADER_CODE] = "LOADER CODE",
 386         [EFI_LOADER_DATA] = "LOADER DATA",
 387         [EFI_BOOT_SERVICES_CODE] = "BOOT CODE",
 388         [EFI_BOOT_SERVICES_DATA] = "BOOT DATA",
 389         [EFI_RUNTIME_SERVICES_CODE] = "RUNTIME CODE",
 390         [EFI_RUNTIME_SERVICES_DATA] = "RUNTIME DATA",
 391         [EFI_CONVENTIONAL_MEMORY] = "CONVENTIONAL",
 392         [EFI_UNUSABLE_MEMORY] = "UNUSABLE MEM",
 393         [EFI_ACPI_RECLAIM_MEMORY] = "ACPI RECLAIM MEM",
 394         [EFI_ACPI_MEMORY_NVS] = "ACPI NVS",
 395         [EFI_MMAP_IO] = "IO",
 396         [EFI_MMAP_IO_PORT] = "IO PORT",
 397         [EFI_PAL_CODE] = "PAL",
 398         [EFI_PERSISTENT_MEMORY_TYPE] = "PERSISTENT",
 399 };
 400
 401 static const struct efi_mem_attrs {
 402         const u64 bit;
 403         const char *text;
 404 } efi_mem_attrs[] = {
 405         {EFI_MEMORY_UC, "UC"},
 406         {EFI_MEMORY_UC, "UC"},
 407         {EFI_MEMORY_WC, "WC"},
 408         {EFI_MEMORY_WT, "WT"},
 409         {EFI_MEMORY_WB, "WB"},
 410         {EFI_MEMORY_UCE, "UCE"},
 411         {EFI_MEMORY_WP, "WP"},
 412         {EFI_MEMORY_RP, "RP"},
 413         {EFI_MEMORY_XP, "WP"},
 414         {EFI_MEMORY_NV, "NV"},
 415         {EFI_MEMORY_MORE_RELIABLE, "REL"},
 416         {EFI_MEMORY_RO, "RO"},
 417         {EFI_MEMORY_SP, "SP"},
 418         {EFI_MEMORY_RUNTIME, "RT"},
 419 };
 420
 421 /**
 422  * print_memory_attributes() - print memory map attributes
 423  *
 424  * @attributes: Attribute value
 425  *
 426  * Print memory map attributes
 427  */
 428 static void print_memory_attributes(u64 attributes)
 429 {
 430         int sep, i;
 431
 432         for (sep = 0, i = 0; i < ARRAY_SIZE(efi_mem_attrs); i++)
 433                 if (attributes & efi_mem_attrs[i].bit) {
 434                         if (sep) {
 435                                 putc('|');
 436                         } else {
 437                                 putc(' ');
 438                                 sep = 1;
 439                         }
 440                         puts(efi_mem_attrs[i].text);
 441                 }
 442 }
 443
 444 #define EFI_PHYS_ADDR_WIDTH (int)(sizeof(efi_physical_addr_t) * 2)
 445
 446 /**
 447  * do_efi_show_memmap() - show UEFI memory map
 448  *
 449  * @cmdtp:      Command table
 450  * @flag:       Command flag
 451  * @argc:       Number of arguments
 452  * @argv:       Argument array
 453  * Return:      CMD_RET_SUCCESS on success, CMD_RET_RET_FAILURE on failure
 454  *
 455  * Implement efidebug "memmap" sub-command.
 456  * Show UEFI memory map.
 457  */
 458 static int do_efi_show_memmap(struct cmd_tbl *cmdtp, int flag,
 459                               int argc, char *const argv[])
 460 {
 461         struct efi_mem_desc *memmap = NULL, *map;
 462         efi_uintn_t map_size = 0;
 463         const char *type;
 464         int i;
 465         efi_status_t ret;
 466
 467         ret = efi_get_memory_map(&map_size, memmap, NULL, NULL, NULL);
 468         if (ret == EFI_BUFFER_TOO_SMALL) {
 469                 map_size += sizeof(struct efi_mem_desc); /* for my own */
 470                 ret = efi_allocate_pool(EFI_LOADER_DATA, map_size,
 471                                         (void *)&memmap);
 472                 if (ret != EFI_SUCCESS)
 473                         return CMD_RET_FAILURE;
 474                 ret = efi_get_memory_map(&map_size, memmap, NULL, NULL, NULL);
 475         }
 476         if (ret != EFI_SUCCESS) {
 477                 efi_free_pool(memmap);
 478                 return CMD_RET_FAILURE;
 479         }
 480
 481         printf("Type             Start%.*s End%.*s Attributes\n",
 482                EFI_PHYS_ADDR_WIDTH - 5, spc, EFI_PHYS_ADDR_WIDTH - 3, spc);
 483         printf("================ %.*s %.*s ==========\n",
 484                EFI_PHYS_ADDR_WIDTH, sep, EFI_PHYS_ADDR_WIDTH, sep);
 485         /*
 486          * Coverity check: dereferencing null pointer "map."
 487          * This is a false positive as memmap will always be
 488          * populated by allocate_pool() above.
 489          */
 490         for (i = 0, map = memmap; i < map_size / sizeof(*map); map++, i++) {
 491                 if (map->type < ARRAY_SIZE(efi_mem_type_string))
 492                         type = efi_mem_type_string[map->type];
 493                 else
 494                         type = "(unknown)";
 495
 496                 printf("%-16s %.*llx-%.*llx", type,
 497                        EFI_PHYS_ADDR_WIDTH,
 498                        (u64)map_to_sysmem((void *)(uintptr_t)
 499                                           map->physical_start),
 500                        EFI_PHYS_ADDR_WIDTH,
 501                        (u64)map_to_sysmem((void *)(uintptr_t)
 502                                           (map->physical_start +
 503                                            map->num_pages * EFI_PAGE_SIZE)));
 504
 505                 print_memory_attributes(map->attribute);
 506                 putc('\n');
 507         }
 508
 509         efi_free_pool(memmap);
 510
 511         return CMD_RET_SUCCESS;
 512 }
 513
 514 /**
 515  * do_efi_show_tables() - show UEFI configuration tables
 516  *
 517  * @cmdtp:      Command table
 518  * @flag:       Command flag
 519  * @argc:       Number of arguments
 520  * @argv:       Argument array
 521  * Return:      CMD_RET_SUCCESS on success, CMD_RET_RET_FAILURE on failure
 522  *
 523  * Implement efidebug "tables" sub-command.
 524  * Show UEFI configuration tables.
 525  */
 526 static int do_efi_show_tables(struct cmd_tbl *cmdtp, int flag,
 527                               int argc, char *const argv[])
 528 {
 529         efi_uintn_t i;
 530         const char *guid_str;
 531
 532         for (i = 0; i < systab.nr_tables; ++i) {
 533                 guid_str = get_guid_text(&systab.tables[i].guid);
 534                 if (!guid_str)
 535                         guid_str = "";
 536                 printf("%pUl %s\n", &systab.tables[i].guid, guid_str);
 537         }
 538
 539         return CMD_RET_SUCCESS;
 540 }
 541
 542 /**
 543  * do_efi_boot_add() - set UEFI load option
 544  *
 545  * @cmdtp:      Command table
 546  * @flag:       Command flag
 547  * @argc:       Number of arguments
 548  * @argv:       Argument array
 549  * Return:      CMD_RET_SUCCESS on success,
 550  *              CMD_RET_USAGE or CMD_RET_RET_FAILURE on failure
 551  *
 552  * Implement efidebug "boot add" sub-command. Create or change UEFI load option.
 553  *
 554  *     efidebug boot add <id> <label> <interface> <devnum>[:<part>] <file> <options>
 555  */
 556 static int do_efi_boot_add(struct cmd_tbl *cmdtp, int flag,
 557                            int argc, char *const argv[])
 558 {
 559         int id;
 560         char *endp;
 561         char var_name[9];
 562         u16 var_name16[9], *p;
 563         efi_guid_t guid;
 564         size_t label_len, label_len16;
 565         u16 *label;
 566         struct efi_device_path *device_path = NULL, *file_path = NULL;
 567         struct efi_load_option lo;
 568         void *data = NULL;
 569         efi_uintn_t size;
 570         efi_status_t ret;
 571         int r = CMD_RET_SUCCESS;
 572
 573         if (argc < 6 || argc > 7)
 574                 return CMD_RET_USAGE;
 575
 576         id = (int)simple_strtoul(argv[1], &endp, 16);
 577         if (*endp != '\0' || id > 0xffff)
 578                 return CMD_RET_USAGE;
 579
 580         sprintf(var_name, "Boot%04X", id);
 581         p = var_name16;
 582         utf8_utf16_strncpy(&p, var_name, 9);
 583
 584         guid = efi_global_variable_guid;
 585
 586         /* attributes */
 587         lo.attributes = LOAD_OPTION_ACTIVE; /* always ACTIVE */
 588
 589         /* label */
 590         label_len = strlen(argv[2]);
 591         label_len16 = utf8_utf16_strnlen(argv[2], label_len);
 592         label = malloc((label_len16 + 1) * sizeof(u16));
 593         if (!label)
 594                 return CMD_RET_FAILURE;
 595         lo.label = label; /* label will be changed below */
 596         utf8_utf16_strncpy(&label, argv[2], label_len);
 597
 598         /* file path */
 599         ret = efi_dp_from_name(argv[3], argv[4], argv[5], &device_path,
 600                                &file_path);
 601         if (ret != EFI_SUCCESS) {
 602                 printf("Cannot create device path for \"%s %s\"\n",
 603                        argv[3], argv[4]);
 604                 r = CMD_RET_FAILURE;
 605                 goto out;
 606         }
 607         lo.file_path = file_path;
 608         lo.file_path_length = efi_dp_size(file_path)
 609                                 + sizeof(struct efi_device_path); /* for END */
 610
 611         /* optional data */
 612         if (argc == 6)
 613                 lo.optional_data = NULL;
 614         else
 615                 lo.optional_data = (const u8 *)argv[6];
 616
 617         size = efi_serialize_load_option(&lo, (u8 **)&data);
 618         if (!size) {
 619                 r = CMD_RET_FAILURE;
 620                 goto out;
 621         }
 622
 623         ret = EFI_CALL(efi_set_variable(var_name16, &guid,
 624                                         EFI_VARIABLE_NON_VOLATILE |
 625                                         EFI_VARIABLE_BOOTSERVICE_ACCESS |
 626                                         EFI_VARIABLE_RUNTIME_ACCESS,
 627                                         size, data));
 628         if (ret != EFI_SUCCESS) {
 629                 printf("Cannot set %ls\n", var_name16);
 630                 r = CMD_RET_FAILURE;
 631         }
 632 out:
 633         free(data);
 634         efi_free_pool(device_path);
 635         efi_free_pool(file_path);
 636         free(lo.label);
 637
 638         return r;
 639 }
 640
 641 /**
 642  * do_efi_boot_rm() - delete UEFI load options
 643  *
 644  * @cmdtp:      Command table
 645  * @flag:       Command flag
 646  * @argc:       Number of arguments
 647  * @argv:       Argument array
 648  * Return:      CMD_RET_SUCCESS on success, CMD_RET_RET_FAILURE on failure
 649  *
 650  * Implement efidebug "boot rm" sub-command.
 651  * Delete UEFI load options.
 652  *
 653  *     efidebug boot rm <id> ...
 654  */
 655 static int do_efi_boot_rm(struct cmd_tbl *cmdtp, int flag,
 656                           int argc, char *const argv[])
 657 {
 658         efi_guid_t guid;
 659         int id, i;
 660         char *endp;
 661         char var_name[9];
 662         u16 var_name16[9], *p;
 663         efi_status_t ret;
 664
 665         if (argc == 1)
 666                 return CMD_RET_USAGE;
 667
 668         guid = efi_global_variable_guid;
 669         for (i = 1; i < argc; i++, argv++) {
 670                 id = (int)simple_strtoul(argv[1], &endp, 16);
 671                 if (*endp != '\0' || id > 0xffff)
 672                         return CMD_RET_FAILURE;
 673
 674                 sprintf(var_name, "Boot%04X", id);
 675                 p = var_name16;
 676                 utf8_utf16_strncpy(&p, var_name, 9);
 677
 678                 ret = EFI_CALL(efi_set_variable(var_name16, &guid, 0, 0, NULL));
 679                 if (ret) {
 680                         printf("Cannot remove %ls\n", var_name16);
 681                         return CMD_RET_FAILURE;
 682                 }
 683         }
 684
 685         return CMD_RET_SUCCESS;
 686 }
 687
 688 /**
 689  * show_efi_boot_opt_data() - dump UEFI load option
 690  *
 691  * @varname16:  variable name
 692  * @data:       value of UEFI load option variable
 693  * @size:       size of the boot option
 694  *
 695  * Decode the value of UEFI load option variable and print information.
 696  */
 697 static void show_efi_boot_opt_data(u16 *varname16, void *data, size_t *size)
 698 {
 699         struct efi_load_option lo;
 700         char *label, *p;
 701         size_t label_len16, label_len;
 702         u16 *dp_str;
 703         efi_status_t ret;
 704
 705         ret = efi_deserialize_load_option(&lo, data, size);
 706         if (ret != EFI_SUCCESS) {
 707                 printf("%ls: invalid load option\n", varname16);
 708                 return;
 709         }
 710
 711         label_len16 = u16_strlen(lo.label);
 712         label_len = utf16_utf8_strnlen(lo.label, label_len16);
 713         label = malloc(label_len + 1);
 714         if (!label)
 715                 return;
 716         p = label;
 717         utf16_utf8_strncpy(&p, lo.label, label_len16);
 718
 719         printf("%ls:\nattributes: %c%c%c (0x%08x)\n",
 720                varname16,
 721                /* ACTIVE */
 722                lo.attributes & LOAD_OPTION_ACTIVE ? 'A' : '-',
 723                /* FORCE RECONNECT */
 724                lo.attributes & LOAD_OPTION_FORCE_RECONNECT ? 'R' : '-',
 725                /* HIDDEN */
 726                lo.attributes & LOAD_OPTION_HIDDEN ? 'H' : '-',
 727                lo.attributes);
 728         printf("  label: %s\n", label);
 729
 730         dp_str = efi_dp_str(lo.file_path);
 731         printf("  file_path: %ls\n", dp_str);
 732         efi_free_pool(dp_str);
 733
 734         printf("  data:\n");
 735         print_hex_dump("    ", DUMP_PREFIX_OFFSET, 16, 1,
 736                        lo.optional_data, *size, true);
 737         free(label);
 738 }
 739
 740 /**
 741  * show_efi_boot_opt() - dump UEFI load option
 742  *
 743  * @varname16:  variable name
 744  *
 745  * Dump information defined by UEFI load option.
 746  */
 747 static void show_efi_boot_opt(u16 *varname16)
 748 {
 749         void *data;
 750         efi_uintn_t size;
 751         efi_status_t ret;
 752
 753         size = 0;
 754         ret = EFI_CALL(efi_get_variable(varname16, &efi_global_variable_guid,
 755                                         NULL, &size, NULL));
 756         if (ret == EFI_BUFFER_TOO_SMALL) {
 757                 data = malloc(size);
 758                 if (!data) {
 759                         printf("ERROR: Out of memory\n");
 760                         return;
 761                 }
 762                 ret = EFI_CALL(efi_get_variable(varname16,
 763                                                 &efi_global_variable_guid,
 764                                                 NULL, &size, data));
 765                 if (ret == EFI_SUCCESS)
 766                         show_efi_boot_opt_data(varname16, data, &size);
 767                 free(data);
 768         }
 769 }
 770
 771 static int u16_tohex(u16 c)
 772 {
 773         if (c >= '0' && c <= '9')
 774                 return c - '0';
 775         if (c >= 'A' && c <= 'F')
 776                 return c - 'A' + 10;
 777
 778         /* not hexadecimal */
 779         return -1;
 780 }
 781
 782 /**
 783  * show_efi_boot_dump() - dump all UEFI load options
 784  *
 785  * @cmdtp:      Command table
 786  * @flag:       Command flag
 787  * @argc:       Number of arguments
 788  * @argv:       Argument array
 789  * Return:      CMD_RET_SUCCESS on success, CMD_RET_RET_FAILURE on failure
 790  *
 791  * Implement efidebug "boot dump" sub-command.
 792  * Dump information of all UEFI load options defined.
 793  *
 794  *     efidebug boot dump
 795  */
 796 static int do_efi_boot_dump(struct cmd_tbl *cmdtp, int flag,
 797                             int argc, char *const argv[])
 798 {
 799         u16 *var_name16, *p;
 800         efi_uintn_t buf_size, size;
 801         efi_guid_t guid;
 802         int id, i, digit;
 803         efi_status_t ret;
 804
 805         if (argc > 1)
 806                 return CMD_RET_USAGE;
 807
 808         buf_size = 128;
 809         var_name16 = malloc(buf_size);
 810         if (!var_name16)
 811                 return CMD_RET_FAILURE;
 812
 813         var_name16[0] = 0;
 814         for (;;) {
 815                 size = buf_size;
 816                 ret = EFI_CALL(efi_get_next_variable_name(&size, var_name16,
 817                                                           &guid));
 818                 if (ret == EFI_NOT_FOUND)
 819                         break;
 820                 if (ret == EFI_BUFFER_TOO_SMALL) {
 821                         buf_size = size;
 822                         p = realloc(var_name16, buf_size);
 823                         if (!p) {
 824                                 free(var_name16);
 825                                 return CMD_RET_FAILURE;
 826                         }
 827                         var_name16 = p;
 828                         ret = EFI_CALL(efi_get_next_variable_name(&size,
 829                                                                   var_name16,
 830                                                                   &guid));
 831                 }
 832                 if (ret != EFI_SUCCESS) {
 833                         free(var_name16);
 834                         return CMD_RET_FAILURE;
 835                 }
 836
 837                 if (memcmp(var_name16, L"Boot", 8))
 838                         continue;
 839
 840                 for (id = 0, i = 0; i < 4; i++) {
 841                         digit = u16_tohex(var_name16[4 + i]);
 842                         if (digit < 0)
 843                                 break;
 844                         id = (id << 4) + digit;
 845                 }
 846                 if (i == 4 && !var_name16[8])
 847                         show_efi_boot_opt(var_name16);
 848         }
 849
 850         free(var_name16);
 851
 852         return CMD_RET_SUCCESS;
 853 }
 854
 855 /**
 856  * show_efi_boot_order() - show order of UEFI load options
 857  *
 858  * Return:      CMD_RET_SUCCESS on success, CMD_RET_RET_FAILURE on failure
 859  *
 860  * Show order of UEFI load options defined by BootOrder variable.
 861  */
 862 static int show_efi_boot_order(void)
 863 {
 864         u16 *bootorder;
 865         efi_uintn_t size;
 866         int num, i;
 867         char var_name[9];
 868         u16 var_name16[9], *p16;
 869         void *data;
 870         struct efi_load_option lo;
 871         char *label, *p;
 872         size_t label_len16, label_len;
 873         efi_status_t ret;
 874
 875         size = 0;
 876         ret = EFI_CALL(efi_get_variable(L"BootOrder", &efi_global_variable_guid,
 877                                         NULL, &size, NULL));
 878         if (ret != EFI_BUFFER_TOO_SMALL) {
 879                 if (ret == EFI_NOT_FOUND) {
 880                         printf("BootOrder not defined\n");
 881                         return CMD_RET_SUCCESS;
 882                 } else {
 883                         return CMD_RET_FAILURE;
 884                 }
 885         }
 886         bootorder = malloc(size);
 887         if (!bootorder) {
 888                 printf("ERROR: Out of memory\n");
 889                 return CMD_RET_FAILURE;
 890         }
 891         ret = EFI_CALL(efi_get_variable(L"BootOrder", &efi_global_variable_guid,
 892                                         NULL, &size, bootorder));
 893         if (ret != EFI_SUCCESS) {
 894                 ret = CMD_RET_FAILURE;
 895                 goto out;
 896         }
 897
 898         num = size / sizeof(u16);
 899         for (i = 0; i < num; i++) {
 900                 sprintf(var_name, "Boot%04X", bootorder[i]);
 901                 p16 = var_name16;
 902                 utf8_utf16_strncpy(&p16, var_name, 9);
 903
 904                 size = 0;
 905                 ret = EFI_CALL(efi_get_variable(var_name16,
 906                                                 &efi_global_variable_guid, NULL,
 907                                                 &size, NULL));
 908                 if (ret != EFI_BUFFER_TOO_SMALL) {
 909                         printf("%2d: %s: (not defined)\n", i + 1, var_name);
 910                         continue;
 911                 }
 912
 913                 data = malloc(size);
 914                 if (!data) {
 915                         ret = CMD_RET_FAILURE;
 916                         goto out;
 917                 }
 918                 ret = EFI_CALL(efi_get_variable(var_name16,
 919                                                 &efi_global_variable_guid, NULL,
 920                                                 &size, data));
 921                 if (ret != EFI_SUCCESS) {
 922                         free(data);
 923                         ret = CMD_RET_FAILURE;
 924                         goto out;
 925                 }
 926
 927                 ret = efi_deserialize_load_option(&lo, data, &size);
 928                 if (ret != EFI_SUCCESS) {
 929                         printf("%ls: invalid load option\n", var_name16);
 930                         ret = CMD_RET_FAILURE;
 931                         goto out;
 932                 }
 933
 934                 label_len16 = u16_strlen(lo.label);
 935                 label_len = utf16_utf8_strnlen(lo.label, label_len16);
 936                 label = malloc(label_len + 1);
 937                 if (!label) {
 938                         free(data);
 939                         ret = CMD_RET_FAILURE;
 940                         goto out;
 941                 }
 942                 p = label;
 943                 utf16_utf8_strncpy(&p, lo.label, label_len16);
 944                 printf("%2d: %s: %s\n", i + 1, var_name, label);
 945                 free(label);
 946
 947                 free(data);
 948         }
 949 out:
 950         free(bootorder);
 951
 952         return ret;
 953 }
 954
 955 /**
 956  * do_efi_boot_next() - manage UEFI BootNext variable
 957  *
 958  * @cmdtp:      Command table
 959  * @flag:       Command flag
 960  * @argc:       Number of arguments
 961  * @argv:       Argument array
 962  * Return:      CMD_RET_SUCCESS on success,
 963  *              CMD_RET_USAGE or CMD_RET_RET_FAILURE on failure
 964  *
 965  * Implement efidebug "boot next" sub-command.
 966  * Set BootNext variable.
 967  *
 968  *     efidebug boot next <id>
 969  */
 970 static int do_efi_boot_next(struct cmd_tbl *cmdtp, int flag,
 971                             int argc, char *const argv[])
 972 {
 973         u16 bootnext;
 974         efi_uintn_t size;
 975         char *endp;
 976         efi_guid_t guid;
 977         efi_status_t ret;
 978         int r = CMD_RET_SUCCESS;
 979
 980         if (argc != 2)
 981                 return CMD_RET_USAGE;
 982
 983         bootnext = (u16)simple_strtoul(argv[1], &endp, 16);
 984         if (*endp) {
 985                 printf("invalid value: %s\n", argv[1]);
 986                 r = CMD_RET_FAILURE;
 987                 goto out;
 988         }
 989
 990         guid = efi_global_variable_guid;
 991         size = sizeof(u16);
 992         ret = EFI_CALL(efi_set_variable(L"BootNext", &guid,
 993                                         EFI_VARIABLE_NON_VOLATILE |
 994                                         EFI_VARIABLE_BOOTSERVICE_ACCESS |
 995                                         EFI_VARIABLE_RUNTIME_ACCESS,
 996                                         size, &bootnext));
 997         if (ret != EFI_SUCCESS) {
 998                 printf("Cannot set BootNext\n");
 999                 r = CMD_RET_FAILURE;
1000         }
1001 out:
1002         return r;
1003 }
1004
1005 /**
1006  * do_efi_boot_order() - manage UEFI BootOrder variable
1007  *
1008  * @cmdtp:      Command table
1009  * @flag:       Command flag
1010  * @argc:       Number of arguments
1011  * @argv:       Argument array
1012  * Return:      CMD_RET_SUCCESS on success, CMD_RET_RET_FAILURE on failure
1013  *
1014  * Implement efidebug "boot order" sub-command.
1015  * Show order of UEFI load options, or change it in BootOrder variable.
1016  *
1017  *     efidebug boot order [<id> ...]
1018  */
1019 static int do_efi_boot_order(struct cmd_tbl *cmdtp, int flag,
1020                              int argc, char *const argv[])
1021 {
1022         u16 *bootorder = NULL;
1023         efi_uintn_t size;
1024         int id, i;
1025         char *endp;
1026         efi_guid_t guid;
1027         efi_status_t ret;
1028         int r = CMD_RET_SUCCESS;
1029
1030         if (argc == 1)
1031                 return show_efi_boot_order();
1032
1033         argc--;
1034         argv++;
1035
1036         size = argc * sizeof(u16);
1037         bootorder = malloc(size);
1038         if (!bootorder)
1039                 return CMD_RET_FAILURE;
1040
1041         for (i = 0; i < argc; i++) {
1042                 id = (int)simple_strtoul(argv[i], &endp, 16);
1043                 if (*endp != '\0' || id > 0xffff) {
1044                         printf("invalid value: %s\n", argv[i]);
1045                         r = CMD_RET_FAILURE;
1046                         goto out;
1047                 }
1048
1049                 bootorder[i] = (u16)id;
1050         }
1051
1052         guid = efi_global_variable_guid;
1053         ret = EFI_CALL(efi_set_variable(L"BootOrder", &guid,
1054                                         EFI_VARIABLE_NON_VOLATILE |
1055                                         EFI_VARIABLE_BOOTSERVICE_ACCESS |
1056                                         EFI_VARIABLE_RUNTIME_ACCESS,
1057                                         size, bootorder));
1058         if (ret != EFI_SUCCESS) {
1059                 printf("Cannot set BootOrder\n");
1060                 r = CMD_RET_FAILURE;
1061         }
1062 out:
1063         free(bootorder);
1064
1065         return r;
1066 }
1067
1068 static struct cmd_tbl cmd_efidebug_boot_sub[] = {
1069         U_BOOT_CMD_MKENT(add, CONFIG_SYS_MAXARGS, 1, do_efi_boot_add, "", ""),
1070         U_BOOT_CMD_MKENT(rm, CONFIG_SYS_MAXARGS, 1, do_efi_boot_rm, "", ""),
1071         U_BOOT_CMD_MKENT(dump, CONFIG_SYS_MAXARGS, 1, do_efi_boot_dump, "", ""),
1072         U_BOOT_CMD_MKENT(next, CONFIG_SYS_MAXARGS, 1, do_efi_boot_next, "", ""),
1073         U_BOOT_CMD_MKENT(order, CONFIG_SYS_MAXARGS, 1, do_efi_boot_order,
1074                          "", ""),
1075 };
1076
1077 /**
1078  * do_efi_boot_opt() - manage UEFI load options
1079  *
1080  * @cmdtp:      Command table
1081  * @flag:       Command flag
1082  * @argc:       Number of arguments
1083  * @argv:       Argument array
1084  * Return:      CMD_RET_SUCCESS on success,
1085  *              CMD_RET_USAGE or CMD_RET_RET_FAILURE on failure
1086  *
1087  * Implement efidebug "boot" sub-command.
1088  */
1089 static int do_efi_boot_opt(struct cmd_tbl *cmdtp, int flag,
1090                            int argc, char *const argv[])
1091 {
1092         struct cmd_tbl *cp;
1093
1094         if (argc < 2)
1095                 return CMD_RET_USAGE;
1096
1097         argc--; argv++;
1098
1099         cp = find_cmd_tbl(argv[0], cmd_efidebug_boot_sub,
1100                           ARRAY_SIZE(cmd_efidebug_boot_sub));
1101         if (!cp)
1102                 return CMD_RET_USAGE;
1103
1104         return cp->cmd(cmdtp, flag, argc, argv);
1105 }
1106
1107 /**
1108  * do_efi_test_bootmgr() - run simple bootmgr for test
1109  *
1110  * @cmdtp:      Command table
1111  * @flag:       Command flag
1112  * @argc:       Number of arguments
1113  * @argv:       Argument array
1114  * Return:      CMD_RET_SUCCESS on success,
1115  *              CMD_RET_USAGE or CMD_RET_RET_FAILURE on failure
1116  *
1117  * Implement efidebug "test bootmgr" sub-command.
1118  * Run simple bootmgr for test.
1119  *
1120  *     efidebug test bootmgr
1121  */
1122 static int do_efi_test_bootmgr(struct cmd_tbl *cmdtp, int flag,
1123                                int argc, char * const argv[])
1124 {
1125         efi_handle_t image;
1126         efi_uintn_t exit_data_size = 0;
1127         u16 *exit_data = NULL;
1128         efi_status_t ret;
1129         void *load_options;
1130
1131         ret = efi_bootmgr_load(&image, &load_options);
1132         printf("efi_bootmgr_load() returned: %ld\n", ret & ~EFI_ERROR_MASK);
1133
1134         /* We call efi_start_image() even if error for test purpose. */
1135         ret = EFI_CALL(efi_start_image(image, &exit_data_size, &exit_data));
1136         printf("efi_start_image() returned: %ld\n", ret & ~EFI_ERROR_MASK);
1137         if (ret && exit_data)
1138                 efi_free_pool(exit_data);
1139
1140         efi_restore_gd();
1141
1142         free(load_options);
1143         return CMD_RET_SUCCESS;
1144 }
1145
1146 static struct cmd_tbl cmd_efidebug_test_sub[] = {
1147         U_BOOT_CMD_MKENT(bootmgr, CONFIG_SYS_MAXARGS, 1, do_efi_test_bootmgr,
1148                          "", ""),
1149 };
1150
1151 /**
1152  * do_efi_test() - manage UEFI load options
1153  *
1154  * @cmdtp:      Command table
1155  * @flag:       Command flag
1156  * @argc:       Number of arguments
1157  * @argv:       Argument array
1158  * Return:      CMD_RET_SUCCESS on success,
1159  *              CMD_RET_USAGE or CMD_RET_RET_FAILURE on failure
1160  *
1161  * Implement efidebug "test" sub-command.
1162  */
1163 static int do_efi_test(struct cmd_tbl *cmdtp, int flag,
1164                        int argc, char * const argv[])
1165 {
1166         struct cmd_tbl *cp;
1167
1168         if (argc < 2)
1169                 return CMD_RET_USAGE;
1170
1171         argc--; argv++;
1172
1173         cp = find_cmd_tbl(argv[0], cmd_efidebug_test_sub,
1174                           ARRAY_SIZE(cmd_efidebug_test_sub));
1175         if (!cp)
1176                 return CMD_RET_USAGE;
1177
1178         return cp->cmd(cmdtp, flag, argc, argv);
1179 }
1180
1181 /**
1182  * do_efi_query_info() - QueryVariableInfo EFI service
1183  *
1184  * @cmdtp:      Command table
1185  * @flag:       Command flag
1186  * @argc:       Number of arguments
1187  * @argv:       Argument array
1188  * Return:      CMD_RET_SUCCESS on success,
1189  *              CMD_RET_USAGE or CMD_RET_FAILURE on failure
1190  *
1191  * Implement efidebug "test" sub-command.
1192  */
1193
1194 static int do_efi_query_info(struct cmd_tbl *cmdtp, int flag,
1195                              int argc, char * const argv[])
1196 {
1197         efi_status_t ret;
1198         u32 attr = 0;
1199         u64 max_variable_storage_size;
1200         u64 remain_variable_storage_size;
1201         u64 max_variable_size;
1202         int i;
1203
1204         for (i = 1; i < argc; i++) {
1205                 if (!strcmp(argv[i], "-bs"))
1206                         attr |= EFI_VARIABLE_BOOTSERVICE_ACCESS;
1207                 else if (!strcmp(argv[i], "-rt"))
1208                         attr |= EFI_VARIABLE_RUNTIME_ACCESS;
1209                 else if (!strcmp(argv[i], "-nv"))
1210                         attr |= EFI_VARIABLE_NON_VOLATILE;
1211                 else if (!strcmp(argv[i], "-at"))
1212                         attr |=
1213                                 EFI_VARIABLE_TIME_BASED_AUTHENTICATED_WRITE_ACCESS;
1214         }
1215
1216         ret = EFI_CALL(efi_query_variable_info(attr,
1217                                                &max_variable_storage_size,
1218                                                &remain_variable_storage_size,
1219                                                &max_variable_size));
1220         if (ret != EFI_SUCCESS) {
1221                 printf("Error: Cannot query UEFI variables, r = %lu\n",
1222                        ret & ~EFI_ERROR_MASK);
1223                 return CMD_RET_FAILURE;
1224         }
1225
1226         printf("Max storage size %llu\n", max_variable_storage_size);
1227         printf("Remaining storage size %llu\n", remain_variable_storage_size);
1228         printf("Max variable size %llu\n", max_variable_size);
1229
1230         return CMD_RET_SUCCESS;
1231 }
1232
1233 static struct cmd_tbl cmd_efidebug_sub[] = {
1234         U_BOOT_CMD_MKENT(boot, CONFIG_SYS_MAXARGS, 1, do_efi_boot_opt, "", ""),
1235         U_BOOT_CMD_MKENT(devices, CONFIG_SYS_MAXARGS, 1, do_efi_show_devices,
1236                          "", ""),
1237         U_BOOT_CMD_MKENT(drivers, CONFIG_SYS_MAXARGS, 1, do_efi_show_drivers,
1238                          "", ""),
1239         U_BOOT_CMD_MKENT(dh, CONFIG_SYS_MAXARGS, 1, do_efi_show_handles,
1240                          "", ""),
1241         U_BOOT_CMD_MKENT(images, CONFIG_SYS_MAXARGS, 1, do_efi_show_images,
1242                          "", ""),
1243         U_BOOT_CMD_MKENT(memmap, CONFIG_SYS_MAXARGS, 1, do_efi_show_memmap,
1244                          "", ""),
1245         U_BOOT_CMD_MKENT(tables, CONFIG_SYS_MAXARGS, 1, do_efi_show_tables,
1246                          "", ""),
1247         U_BOOT_CMD_MKENT(test, CONFIG_SYS_MAXARGS, 1, do_efi_test,
1248                          "", ""),
1249         U_BOOT_CMD_MKENT(query, CONFIG_SYS_MAXARGS, 1, do_efi_query_info,
1250                          "", ""),
1251 };
1252
1253 /**
1254  * do_efidebug() - display and configure UEFI environment
1255  *
1256  * @cmdtp:      Command table
1257  * @flag:       Command flag
1258  * @argc:       Number of arguments
1259  * @argv:       Argument array
1260  * Return:      CMD_RET_SUCCESS on success,
1261  *              CMD_RET_USAGE or CMD_RET_RET_FAILURE on failure
1262  *
1263  * Implement efidebug command which allows us to display and
1264  * configure UEFI environment.
1265  */
1266 static int do_efidebug(struct cmd_tbl *cmdtp, int flag,
1267                        int argc, char *const argv[])
1268 {
1269         struct cmd_tbl *cp;
1270         efi_status_t r;
1271
1272         if (argc < 2)
1273                 return CMD_RET_USAGE;
1274
1275         argc--; argv++;
1276
1277         /* Initialize UEFI drivers */
1278         r = efi_init_obj_list();
1279         if (r != EFI_SUCCESS) {
1280                 printf("Error: Cannot initialize UEFI sub-system, r = %lu\n",
1281                        r & ~EFI_ERROR_MASK);
1282                 return CMD_RET_FAILURE;
1283         }
1284
1285         cp = find_cmd_tbl(argv[0], cmd_efidebug_sub,
1286                           ARRAY_SIZE(cmd_efidebug_sub));
1287         if (!cp)
1288                 return CMD_RET_USAGE;
1289
1290         return cp->cmd(cmdtp, flag, argc, argv);
1291 }
1292
1293 #ifdef CONFIG_SYS_LONGHELP
1294 static char efidebug_help_text[] =
1295         "  - UEFI Shell-like interface to configure UEFI environment\n"
1296         "\n"
1297         "efidebug boot add <bootid> <label> <interface> <devnum>[:<part>] <file path> [<load options>]\n"
1298         "  - set UEFI BootXXXX variable\n"
1299         "    <load options> will be passed to UEFI application\n"
1300         "efidebug boot rm <bootid#1> [<bootid#2> [<bootid#3> [...]]]\n"
1301         "  - delete UEFI BootXXXX variables\n"
1302         "efidebug boot dump\n"
1303         "  - dump all UEFI BootXXXX variables\n"
1304         "efidebug boot next <bootid>\n"
1305         "  - set UEFI BootNext variable\n"
1306         "efidebug boot order [<bootid#1> [<bootid#2> [<bootid#3> [...]]]]\n"
1307         "  - set/show UEFI boot order\n"
1308         "\n"
1309         "efidebug devices\n"
1310         "  - show UEFI devices\n"
1311         "efidebug drivers\n"
1312         "  - show UEFI drivers\n"
1313         "efidebug dh\n"
1314         "  - show UEFI handles\n"
1315         "efidebug images\n"
1316         "  - show loaded images\n"
1317         "efidebug memmap\n"
1318         "  - show UEFI memory map\n"
1319         "efidebug tables\n"
1320         "  - show UEFI configuration tables\n"
1321         "efidebug test bootmgr\n"
1322         "  - run simple bootmgr for test\n"
1323         "efidebug query [-nv][-bs][-rt][-at]\n"
1324         "  - show size of UEFI variables store\n";
1325 #endif
1326
1327 U_BOOT_CMD(
1328         efidebug, 10, 0, do_efidebug,
1329         "Configure UEFI environment",
1330         efidebug_help_text
1331 );