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 <efi_rng.h>
  13 #include <exports.h>
  14 #include <hexdump.h>
  15 #include <log.h>
  16 #include <malloc.h>
  17 #include <mapmem.h>
  18 #include <search.h>
  19 #include <linux/ctype.h>
  20
  21 #define BS systab.boottime
  22
  23 /**
  24  * efi_get_device_handle_info() - get information of UEFI device
  25  *
  26  * @handle:             Handle of UEFI device
  27  * @dev_path_text:      Pointer to text of device path
  28  * Return:              0 on success, -1 on failure
  29  *
  30  * Currently return a formatted text of device path.
  31  */
  32 static int efi_get_device_handle_info(efi_handle_t handle, u16 **dev_path_text)
  33 {
  34         struct efi_device_path *dp;
  35         efi_status_t ret;
  36
  37         ret = EFI_CALL(BS->open_protocol(handle, &efi_guid_device_path,
  38                                          (void **)&dp, NULL /* FIXME */, NULL,
  39                                          EFI_OPEN_PROTOCOL_GET_PROTOCOL));
  40         if (ret == EFI_SUCCESS) {
  41                 *dev_path_text = efi_dp_str(dp);
  42                 return 0;
  43         } else {
  44                 return -1;
  45         }
  46 }
  47
  48 #define EFI_HANDLE_WIDTH ((int)sizeof(efi_handle_t) * 2)
  49
  50 static const char spc[] = "                ";
  51 static const char sep[] = "================";
  52
  53 /**
  54  * do_efi_show_devices() - show UEFI devices
  55  *
  56  * @cmdtp:      Command table
  57  * @flag:       Command flag
  58  * @argc:       Number of arguments
  59  * @argv:       Argument array
  60  * Return:      CMD_RET_SUCCESS on success, CMD_RET_RET_FAILURE on failure
  61  *
  62  * Implement efidebug "devices" sub-command.
  63  * Show all UEFI devices and their information.
  64  */
  65 static int do_efi_show_devices(struct cmd_tbl *cmdtp, int flag,
  66                                int argc, char *const argv[])
  67 {
  68         efi_handle_t *handles;
  69         efi_uintn_t num, i;
  70         u16 *dev_path_text;
  71         efi_status_t ret;
  72
  73         ret = EFI_CALL(efi_locate_handle_buffer(ALL_HANDLES, NULL, NULL,
  74                                                 &num, &handles));
  75         if (ret != EFI_SUCCESS)
  76                 return CMD_RET_FAILURE;
  77
  78         if (!num)
  79                 return CMD_RET_SUCCESS;
  80
  81         printf("Device%.*s Device Path\n", EFI_HANDLE_WIDTH - 6, spc);
  82         printf("%.*s ====================\n", EFI_HANDLE_WIDTH, sep);
  83         for (i = 0; i < num; i++) {
  84                 if (!efi_get_device_handle_info(handles[i], &dev_path_text)) {
  85                         printf("%p %ls\n", handles[i], dev_path_text);
  86                         efi_free_pool(dev_path_text);
  87                 }
  88         }
  89
  90         efi_free_pool(handles);
  91
  92         return CMD_RET_SUCCESS;
  93 }
  94
  95 /**
  96  * efi_get_driver_handle_info() - get information of UEFI driver
  97  *
  98  * @handle:             Handle of UEFI device
  99  * @driver_name:        Driver name
 100  * @image_path:         Pointer to text of device path
 101  * Return:              0 on success, -1 on failure
 102  *
 103  * Currently return no useful information as all UEFI drivers are
 104  * built-in..
 105  */
 106 static int efi_get_driver_handle_info(efi_handle_t handle, u16 **driver_name,
 107                                       u16 **image_path)
 108 {
 109         struct efi_handler *handler;
 110         struct efi_loaded_image *image;
 111         efi_status_t ret;
 112
 113         /*
 114          * driver name
 115          * TODO: support EFI_COMPONENT_NAME2_PROTOCOL
 116          */
 117         *driver_name = NULL;
 118
 119         /* image name */
 120         ret = efi_search_protocol(handle, &efi_guid_loaded_image, &handler);
 121         if (ret != EFI_SUCCESS) {
 122                 *image_path = NULL;
 123                 return 0;
 124         }
 125
 126         image = handler->protocol_interface;
 127         *image_path = efi_dp_str(image->file_path);
 128
 129         return 0;
 130 }
 131
 132 /**
 133  * do_efi_show_drivers() - show UEFI drivers
 134  *
 135  * @cmdtp:      Command table
 136  * @flag:       Command flag
 137  * @argc:       Number of arguments
 138  * @argv:       Argument array
 139  * Return:      CMD_RET_SUCCESS on success, CMD_RET_RET_FAILURE on failure
 140  *
 141  * Implement efidebug "drivers" sub-command.
 142  * Show all UEFI drivers and their information.
 143  */
 144 static int do_efi_show_drivers(struct cmd_tbl *cmdtp, int flag,
 145                                int argc, char *const argv[])
 146 {
 147         efi_handle_t *handles;
 148         efi_uintn_t num, i;
 149         u16 *driver_name, *image_path_text;
 150         efi_status_t ret;
 151
 152         ret = EFI_CALL(efi_locate_handle_buffer(
 153                                 BY_PROTOCOL, &efi_guid_driver_binding_protocol,
 154                                 NULL, &num, &handles));
 155         if (ret != EFI_SUCCESS)
 156                 return CMD_RET_FAILURE;
 157
 158         if (!num)
 159                 return CMD_RET_SUCCESS;
 160
 161         printf("Driver%.*s Name                 Image Path\n",
 162                EFI_HANDLE_WIDTH - 6, spc);
 163         printf("%.*s ==================== ====================\n",
 164                EFI_HANDLE_WIDTH, sep);
 165         for (i = 0; i < num; i++) {
 166                 if (!efi_get_driver_handle_info(handles[i], &driver_name,
 167                                                 &image_path_text)) {
 168                         if (image_path_text)
 169                                 printf("%p %-20ls %ls\n", handles[i],
 170                                        driver_name, image_path_text);
 171                         else
 172                                 printf("%p %-20ls <built-in>\n",
 173                                        handles[i], driver_name);
 174                         efi_free_pool(driver_name);
 175                         efi_free_pool(image_path_text);
 176                 }
 177         }
 178
 179         efi_free_pool(handles);
 180
 181         return CMD_RET_SUCCESS;
 182 }
 183
 184 static const struct {
 185         const char *text;
 186         const efi_guid_t guid;
 187 } guid_list[] = {
 188         {
 189                 "Device Path",
 190                 EFI_DEVICE_PATH_PROTOCOL_GUID,
 191         },
 192         {
 193                 "Device Path To Text",
 194                 EFI_DEVICE_PATH_TO_TEXT_PROTOCOL_GUID,
 195         },
 196         {
 197                 "Device Path Utilities",
 198                 EFI_DEVICE_PATH_UTILITIES_PROTOCOL_GUID,
 199         },
 200         {
 201                 "Unicode Collation 2",
 202                 EFI_UNICODE_COLLATION_PROTOCOL2_GUID,
 203         },
 204         {
 205                 "Driver Binding",
 206                 EFI_DRIVER_BINDING_PROTOCOL_GUID,
 207         },
 208         {
 209                 "Simple Text Input",
 210                 EFI_SIMPLE_TEXT_INPUT_PROTOCOL_GUID,
 211         },
 212         {
 213                 "Simple Text Input Ex",
 214                 EFI_SIMPLE_TEXT_INPUT_EX_PROTOCOL_GUID,
 215         },
 216         {
 217                 "Simple Text Output",
 218                 EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL_GUID,
 219         },
 220         {
 221                 "Block IO",
 222                 EFI_BLOCK_IO_PROTOCOL_GUID,
 223         },
 224         {
 225                 "Simple File System",
 226                 EFI_SIMPLE_FILE_SYSTEM_PROTOCOL_GUID,
 227         },
 228         {
 229                 "Loaded Image",
 230                 EFI_LOADED_IMAGE_PROTOCOL_GUID,
 231         },
 232         {
 233                 "Graphics Output",
 234                 EFI_GRAPHICS_OUTPUT_PROTOCOL_GUID,
 235         },
 236         {
 237                 "HII String",
 238                 EFI_HII_STRING_PROTOCOL_GUID,
 239         },
 240         {
 241                 "HII Database",
 242                 EFI_HII_DATABASE_PROTOCOL_GUID,
 243         },
 244         {
 245                 "HII Config Routing",
 246                 EFI_HII_CONFIG_ROUTING_PROTOCOL_GUID,
 247         },
 248         {
 249                 "Load File2",
 250                 EFI_LOAD_FILE2_PROTOCOL_GUID,
 251         },
 252         {
 253                 "Random Number Generator",
 254                 EFI_RNG_PROTOCOL_GUID,
 255         },
 256         {
 257                 "Simple Network",
 258                 EFI_SIMPLE_NETWORK_PROTOCOL_GUID,
 259         },
 260         {
 261                 "PXE Base Code",
 262                 EFI_PXE_BASE_CODE_PROTOCOL_GUID,
 263         },
 264         /* Configuration table GUIDs */
 265         {
 266                 "ACPI table",
 267                 EFI_ACPI_TABLE_GUID,
 268         },
 269         {
 270                 "device tree",
 271                 EFI_FDT_GUID,
 272         },
 273         {
 274                 "SMBIOS table",
 275                 SMBIOS_TABLE_GUID,
 276         },
 277         {
 278                 "Runtime properties",
 279                 EFI_RT_PROPERTIES_TABLE_GUID,
 280         },
 281         {
 282                 "TCG2 Final Events Table",
 283                 EFI_TCG2_FINAL_EVENTS_TABLE_GUID,
 284         },
 285 };
 286
 287 /**
 288  * get_guid_text - get string of GUID
 289  *
 290  * Return description of GUID.
 291  *
 292  * @guid:       GUID
 293  * Return:      description of GUID or NULL
 294  */
 295 static const char *get_guid_text(const void *guid)
 296 {
 297         int i;
 298
 299         for (i = 0; i < ARRAY_SIZE(guid_list); i++) {
 300                 /*
 301                  * As guidcmp uses memcmp() we can safely accept unaligned
 302                  * GUIDs.
 303                  */
 304                 if (!guidcmp(&guid_list[i].guid, guid))
 305                         return guid_list[i].text;
 306         }
 307
 308         return NULL;
 309 }
 310
 311 /**
 312  * do_efi_show_handles() - show UEFI handles
 313  *
 314  * @cmdtp:      Command table
 315  * @flag:       Command flag
 316  * @argc:       Number of arguments
 317  * @argv:       Argument array
 318  * Return:      CMD_RET_SUCCESS on success, CMD_RET_RET_FAILURE on failure
 319  *
 320  * Implement efidebug "dh" sub-command.
 321  * Show all UEFI handles and their information, currently all protocols
 322  * added to handle.
 323  */
 324 static int do_efi_show_handles(struct cmd_tbl *cmdtp, int flag,
 325                                int argc, char *const argv[])
 326 {
 327         efi_handle_t *handles;
 328         efi_guid_t **guid;
 329         efi_uintn_t num, count, i, j;
 330         const char *guid_text;
 331         efi_status_t ret;
 332
 333         ret = EFI_CALL(efi_locate_handle_buffer(ALL_HANDLES, NULL, NULL,
 334                                                 &num, &handles));
 335         if (ret != EFI_SUCCESS)
 336                 return CMD_RET_FAILURE;
 337
 338         if (!num)
 339                 return CMD_RET_SUCCESS;
 340
 341         printf("Handle%.*s Protocols\n", EFI_HANDLE_WIDTH - 6, spc);
 342         printf("%.*s ====================\n", EFI_HANDLE_WIDTH, sep);
 343         for (i = 0; i < num; i++) {
 344                 printf("%p", handles[i]);
 345                 ret = EFI_CALL(BS->protocols_per_handle(handles[i], &guid,
 346                                                         &count));
 347                 if (ret || !count) {
 348                         putc('\n');
 349                         continue;
 350                 }
 351
 352                 for (j = 0; j < count; j++) {
 353                         if (j)
 354                                 printf(", ");
 355                         else
 356                                 putc(' ');
 357
 358                         guid_text = get_guid_text(guid[j]);
 359                         if (guid_text)
 360                                 puts(guid_text);
 361                         else
 362                                 printf("%pUl", guid[j]);
 363                 }
 364                 putc('\n');
 365         }
 366
 367         efi_free_pool(handles);
 368
 369         return CMD_RET_SUCCESS;
 370 }
 371
 372 /**
 373  * do_efi_show_images() - show UEFI images
 374  *
 375  * @cmdtp:      Command table
 376  * @flag:       Command flag
 377  * @argc:       Number of arguments
 378  * @argv:       Argument array
 379  * Return:      CMD_RET_SUCCESS on success, CMD_RET_RET_FAILURE on failure
 380  *
 381  * Implement efidebug "images" sub-command.
 382  * Show all UEFI loaded images and their information.
 383  */
 384 static int do_efi_show_images(struct cmd_tbl *cmdtp, int flag,
 385                               int argc, char *const argv[])
 386 {
 387         efi_print_image_infos(NULL);
 388
 389         return CMD_RET_SUCCESS;
 390 }
 391
 392 static const char * const efi_mem_type_string[] = {
 393         [EFI_RESERVED_MEMORY_TYPE] = "RESERVED",
 394         [EFI_LOADER_CODE] = "LOADER CODE",
 395         [EFI_LOADER_DATA] = "LOADER DATA",
 396         [EFI_BOOT_SERVICES_CODE] = "BOOT CODE",
 397         [EFI_BOOT_SERVICES_DATA] = "BOOT DATA",
 398         [EFI_RUNTIME_SERVICES_CODE] = "RUNTIME CODE",
 399         [EFI_RUNTIME_SERVICES_DATA] = "RUNTIME DATA",
 400         [EFI_CONVENTIONAL_MEMORY] = "CONVENTIONAL",
 401         [EFI_UNUSABLE_MEMORY] = "UNUSABLE MEM",
 402         [EFI_ACPI_RECLAIM_MEMORY] = "ACPI RECLAIM MEM",
 403         [EFI_ACPI_MEMORY_NVS] = "ACPI NVS",
 404         [EFI_MMAP_IO] = "IO",
 405         [EFI_MMAP_IO_PORT] = "IO PORT",
 406         [EFI_PAL_CODE] = "PAL",
 407         [EFI_PERSISTENT_MEMORY_TYPE] = "PERSISTENT",
 408 };
 409
 410 static const struct efi_mem_attrs {
 411         const u64 bit;
 412         const char *text;
 413 } efi_mem_attrs[] = {
 414         {EFI_MEMORY_UC, "UC"},
 415         {EFI_MEMORY_UC, "UC"},
 416         {EFI_MEMORY_WC, "WC"},
 417         {EFI_MEMORY_WT, "WT"},
 418         {EFI_MEMORY_WB, "WB"},
 419         {EFI_MEMORY_UCE, "UCE"},
 420         {EFI_MEMORY_WP, "WP"},
 421         {EFI_MEMORY_RP, "RP"},
 422         {EFI_MEMORY_XP, "WP"},
 423         {EFI_MEMORY_NV, "NV"},
 424         {EFI_MEMORY_MORE_RELIABLE, "REL"},
 425         {EFI_MEMORY_RO, "RO"},
 426         {EFI_MEMORY_SP, "SP"},
 427         {EFI_MEMORY_RUNTIME, "RT"},
 428 };
 429
 430 /**
 431  * print_memory_attributes() - print memory map attributes
 432  *
 433  * @attributes: Attribute value
 434  *
 435  * Print memory map attributes
 436  */
 437 static void print_memory_attributes(u64 attributes)
 438 {
 439         int sep, i;
 440
 441         for (sep = 0, i = 0; i < ARRAY_SIZE(efi_mem_attrs); i++)
 442                 if (attributes & efi_mem_attrs[i].bit) {
 443                         if (sep) {
 444                                 putc('|');
 445                         } else {
 446                                 putc(' ');
 447                                 sep = 1;
 448                         }
 449                         puts(efi_mem_attrs[i].text);
 450                 }
 451 }
 452
 453 #define EFI_PHYS_ADDR_WIDTH (int)(sizeof(efi_physical_addr_t) * 2)
 454
 455 /**
 456  * do_efi_show_memmap() - show UEFI memory map
 457  *
 458  * @cmdtp:      Command table
 459  * @flag:       Command flag
 460  * @argc:       Number of arguments
 461  * @argv:       Argument array
 462  * Return:      CMD_RET_SUCCESS on success, CMD_RET_RET_FAILURE on failure
 463  *
 464  * Implement efidebug "memmap" sub-command.
 465  * Show UEFI memory map.
 466  */
 467 static int do_efi_show_memmap(struct cmd_tbl *cmdtp, int flag,
 468                               int argc, char *const argv[])
 469 {
 470         struct efi_mem_desc *memmap = NULL, *map;
 471         efi_uintn_t map_size = 0;
 472         const char *type;
 473         int i;
 474         efi_status_t ret;
 475
 476         ret = efi_get_memory_map(&map_size, memmap, NULL, NULL, NULL);
 477         if (ret == EFI_BUFFER_TOO_SMALL) {
 478                 map_size += sizeof(struct efi_mem_desc); /* for my own */
 479                 ret = efi_allocate_pool(EFI_LOADER_DATA, map_size,
 480                                         (void *)&memmap);
 481                 if (ret != EFI_SUCCESS)
 482                         return CMD_RET_FAILURE;
 483                 ret = efi_get_memory_map(&map_size, memmap, NULL, NULL, NULL);
 484         }
 485         if (ret != EFI_SUCCESS) {
 486                 efi_free_pool(memmap);
 487                 return CMD_RET_FAILURE;
 488         }
 489
 490         printf("Type             Start%.*s End%.*s Attributes\n",
 491                EFI_PHYS_ADDR_WIDTH - 5, spc, EFI_PHYS_ADDR_WIDTH - 3, spc);
 492         printf("================ %.*s %.*s ==========\n",
 493                EFI_PHYS_ADDR_WIDTH, sep, EFI_PHYS_ADDR_WIDTH, sep);
 494         /*
 495          * Coverity check: dereferencing null pointer "map."
 496          * This is a false positive as memmap will always be
 497          * populated by allocate_pool() above.
 498          */
 499         for (i = 0, map = memmap; i < map_size / sizeof(*map); map++, i++) {
 500                 if (map->type < ARRAY_SIZE(efi_mem_type_string))
 501                         type = efi_mem_type_string[map->type];
 502                 else
 503                         type = "(unknown)";
 504
 505                 printf("%-16s %.*llx-%.*llx", type,
 506                        EFI_PHYS_ADDR_WIDTH,
 507                        (u64)map_to_sysmem((void *)(uintptr_t)
 508                                           map->physical_start),
 509                        EFI_PHYS_ADDR_WIDTH,
 510                        (u64)map_to_sysmem((void *)(uintptr_t)
 511                                           (map->physical_start +
 512                                            map->num_pages * EFI_PAGE_SIZE)));
 513
 514                 print_memory_attributes(map->attribute);
 515                 putc('\n');
 516         }
 517
 518         efi_free_pool(memmap);
 519
 520         return CMD_RET_SUCCESS;
 521 }
 522
 523 /**
 524  * do_efi_show_tables() - show UEFI configuration tables
 525  *
 526  * @cmdtp:      Command table
 527  * @flag:       Command flag
 528  * @argc:       Number of arguments
 529  * @argv:       Argument array
 530  * Return:      CMD_RET_SUCCESS on success, CMD_RET_RET_FAILURE on failure
 531  *
 532  * Implement efidebug "tables" sub-command.
 533  * Show UEFI configuration tables.
 534  */
 535 static int do_efi_show_tables(struct cmd_tbl *cmdtp, int flag,
 536                               int argc, char *const argv[])
 537 {
 538         efi_uintn_t i;
 539         const char *guid_str;
 540
 541         for (i = 0; i < systab.nr_tables; ++i) {
 542                 guid_str = get_guid_text(&systab.tables[i].guid);
 543                 if (!guid_str)
 544                         guid_str = "";
 545                 printf("%pUl %s\n", &systab.tables[i].guid, guid_str);
 546         }
 547
 548         return CMD_RET_SUCCESS;
 549 }
 550
 551 /**
 552  * do_efi_boot_add() - set UEFI load option
 553  *
 554  * @cmdtp:      Command table
 555  * @flag:       Command flag
 556  * @argc:       Number of arguments
 557  * @argv:       Argument array
 558  * Return:      CMD_RET_SUCCESS on success,
 559  *              CMD_RET_USAGE or CMD_RET_RET_FAILURE on failure
 560  *
 561  * Implement efidebug "boot add" sub-command. Create or change UEFI load option.
 562  *
 563  *     efidebug boot add <id> <label> <interface> <devnum>[:<part>] <file> <options>
 564  */
 565 static int do_efi_boot_add(struct cmd_tbl *cmdtp, int flag,
 566                            int argc, char *const argv[])
 567 {
 568         int id;
 569         char *endp;
 570         char var_name[9];
 571         u16 var_name16[9], *p;
 572         efi_guid_t guid;
 573         size_t label_len, label_len16;
 574         u16 *label;
 575         struct efi_device_path *device_path = NULL, *file_path = NULL;
 576         struct efi_load_option lo;
 577         void *data = NULL;
 578         efi_uintn_t size;
 579         efi_status_t ret;
 580         int r = CMD_RET_SUCCESS;
 581
 582         if (argc < 6 || argc > 7)
 583                 return CMD_RET_USAGE;
 584
 585         id = (int)simple_strtoul(argv[1], &endp, 16);
 586         if (*endp != '\0' || id > 0xffff)
 587                 return CMD_RET_USAGE;
 588
 589         sprintf(var_name, "Boot%04X", id);
 590         p = var_name16;
 591         utf8_utf16_strncpy(&p, var_name, 9);
 592
 593         guid = efi_global_variable_guid;
 594
 595         /* attributes */
 596         lo.attributes = LOAD_OPTION_ACTIVE; /* always ACTIVE */
 597
 598         /* label */
 599         label_len = strlen(argv[2]);
 600         label_len16 = utf8_utf16_strnlen(argv[2], label_len);
 601         label = malloc((label_len16 + 1) * sizeof(u16));
 602         if (!label)
 603                 return CMD_RET_FAILURE;
 604         lo.label = label; /* label will be changed below */
 605         utf8_utf16_strncpy(&label, argv[2], label_len);
 606
 607         /* file path */
 608         ret = efi_dp_from_name(argv[3], argv[4], argv[5], &device_path,
 609                                &file_path);
 610         if (ret != EFI_SUCCESS) {
 611                 printf("Cannot create device path for \"%s %s\"\n",
 612                        argv[3], argv[4]);
 613                 r = CMD_RET_FAILURE;
 614                 goto out;
 615         }
 616         lo.file_path = file_path;
 617         lo.file_path_length = efi_dp_size(file_path)
 618                                 + sizeof(struct efi_device_path); /* for END */
 619
 620         /* optional data */
 621         if (argc == 6)
 622                 lo.optional_data = NULL;
 623         else
 624                 lo.optional_data = (const u8 *)argv[6];
 625
 626         size = efi_serialize_load_option(&lo, (u8 **)&data);
 627         if (!size) {
 628                 r = CMD_RET_FAILURE;
 629                 goto out;
 630         }
 631
 632         ret = EFI_CALL(efi_set_variable(var_name16, &guid,
 633                                         EFI_VARIABLE_NON_VOLATILE |
 634                                         EFI_VARIABLE_BOOTSERVICE_ACCESS |
 635                                         EFI_VARIABLE_RUNTIME_ACCESS,
 636                                         size, data));
 637         if (ret != EFI_SUCCESS) {
 638                 printf("Cannot set %ls\n", var_name16);
 639                 r = CMD_RET_FAILURE;
 640         }
 641 out:
 642         free(data);
 643         efi_free_pool(device_path);
 644         efi_free_pool(file_path);
 645         free(lo.label);
 646
 647         return r;
 648 }
 649
 650 /**
 651  * do_efi_boot_rm() - delete UEFI load options
 652  *
 653  * @cmdtp:      Command table
 654  * @flag:       Command flag
 655  * @argc:       Number of arguments
 656  * @argv:       Argument array
 657  * Return:      CMD_RET_SUCCESS on success, CMD_RET_RET_FAILURE on failure
 658  *
 659  * Implement efidebug "boot rm" sub-command.
 660  * Delete UEFI load options.
 661  *
 662  *     efidebug boot rm <id> ...
 663  */
 664 static int do_efi_boot_rm(struct cmd_tbl *cmdtp, int flag,
 665                           int argc, char *const argv[])
 666 {
 667         efi_guid_t guid;
 668         int id, i;
 669         char *endp;
 670         char var_name[9];
 671         u16 var_name16[9], *p;
 672         efi_status_t ret;
 673
 674         if (argc == 1)
 675                 return CMD_RET_USAGE;
 676
 677         guid = efi_global_variable_guid;
 678         for (i = 1; i < argc; i++, argv++) {
 679                 id = (int)simple_strtoul(argv[1], &endp, 16);
 680                 if (*endp != '\0' || id > 0xffff)
 681                         return CMD_RET_FAILURE;
 682
 683                 sprintf(var_name, "Boot%04X", id);
 684                 p = var_name16;
 685                 utf8_utf16_strncpy(&p, var_name, 9);
 686
 687                 ret = EFI_CALL(efi_set_variable(var_name16, &guid, 0, 0, NULL));
 688                 if (ret) {
 689                         printf("Cannot remove %ls\n", var_name16);
 690                         return CMD_RET_FAILURE;
 691                 }
 692         }
 693
 694         return CMD_RET_SUCCESS;
 695 }
 696
 697 /**
 698  * show_efi_boot_opt_data() - dump UEFI load option
 699  *
 700  * @varname16:  variable name
 701  * @data:       value of UEFI load option variable
 702  * @size:       size of the boot option
 703  *
 704  * Decode the value of UEFI load option variable and print information.
 705  */
 706 static void show_efi_boot_opt_data(u16 *varname16, void *data, size_t *size)
 707 {
 708         struct efi_load_option lo;
 709         char *label, *p;
 710         size_t label_len16, label_len;
 711         u16 *dp_str;
 712         efi_status_t ret;
 713
 714         ret = efi_deserialize_load_option(&lo, data, size);
 715         if (ret != EFI_SUCCESS) {
 716                 printf("%ls: invalid load option\n", varname16);
 717                 return;
 718         }
 719
 720         label_len16 = u16_strlen(lo.label);
 721         label_len = utf16_utf8_strnlen(lo.label, label_len16);
 722         label = malloc(label_len + 1);
 723         if (!label)
 724                 return;
 725         p = label;
 726         utf16_utf8_strncpy(&p, lo.label, label_len16);
 727
 728         printf("%ls:\nattributes: %c%c%c (0x%08x)\n",
 729                varname16,
 730                /* ACTIVE */
 731                lo.attributes & LOAD_OPTION_ACTIVE ? 'A' : '-',
 732                /* FORCE RECONNECT */
 733                lo.attributes & LOAD_OPTION_FORCE_RECONNECT ? 'R' : '-',
 734                /* HIDDEN */
 735                lo.attributes & LOAD_OPTION_HIDDEN ? 'H' : '-',
 736                lo.attributes);
 737         printf("  label: %s\n", label);
 738
 739         dp_str = efi_dp_str(lo.file_path);
 740         printf("  file_path: %ls\n", dp_str);
 741         efi_free_pool(dp_str);
 742
 743         printf("  data:\n");
 744         print_hex_dump("    ", DUMP_PREFIX_OFFSET, 16, 1,
 745                        lo.optional_data, *size, true);
 746         free(label);
 747 }
 748
 749 /**
 750  * show_efi_boot_opt() - dump UEFI load option
 751  *
 752  * @varname16:  variable name
 753  *
 754  * Dump information defined by UEFI load option.
 755  */
 756 static void show_efi_boot_opt(u16 *varname16)
 757 {
 758         void *data;
 759         efi_uintn_t size;
 760         efi_status_t ret;
 761
 762         size = 0;
 763         ret = EFI_CALL(efi_get_variable(varname16, &efi_global_variable_guid,
 764                                         NULL, &size, NULL));
 765         if (ret == EFI_BUFFER_TOO_SMALL) {
 766                 data = malloc(size);
 767                 if (!data) {
 768                         printf("ERROR: Out of memory\n");
 769                         return;
 770                 }
 771                 ret = EFI_CALL(efi_get_variable(varname16,
 772                                                 &efi_global_variable_guid,
 773                                                 NULL, &size, data));
 774                 if (ret == EFI_SUCCESS)
 775                         show_efi_boot_opt_data(varname16, data, &size);
 776                 free(data);
 777         }
 778 }
 779
 780 static int u16_tohex(u16 c)
 781 {
 782         if (c >= '0' && c <= '9')
 783                 return c - '0';
 784         if (c >= 'A' && c <= 'F')
 785                 return c - 'A' + 10;
 786
 787         /* not hexadecimal */
 788         return -1;
 789 }
 790
 791 /**
 792  * show_efi_boot_dump() - dump all UEFI load options
 793  *
 794  * @cmdtp:      Command table
 795  * @flag:       Command flag
 796  * @argc:       Number of arguments
 797  * @argv:       Argument array
 798  * Return:      CMD_RET_SUCCESS on success, CMD_RET_RET_FAILURE on failure
 799  *
 800  * Implement efidebug "boot dump" sub-command.
 801  * Dump information of all UEFI load options defined.
 802  *
 803  *     efidebug boot dump
 804  */
 805 static int do_efi_boot_dump(struct cmd_tbl *cmdtp, int flag,
 806                             int argc, char *const argv[])
 807 {
 808         u16 *var_name16, *p;
 809         efi_uintn_t buf_size, size;
 810         efi_guid_t guid;
 811         int id, i, digit;
 812         efi_status_t ret;
 813
 814         if (argc > 1)
 815                 return CMD_RET_USAGE;
 816
 817         buf_size = 128;
 818         var_name16 = malloc(buf_size);
 819         if (!var_name16)
 820                 return CMD_RET_FAILURE;
 821
 822         var_name16[0] = 0;
 823         for (;;) {
 824                 size = buf_size;
 825                 ret = EFI_CALL(efi_get_next_variable_name(&size, var_name16,
 826                                                           &guid));
 827                 if (ret == EFI_NOT_FOUND)
 828                         break;
 829                 if (ret == EFI_BUFFER_TOO_SMALL) {
 830                         buf_size = size;
 831                         p = realloc(var_name16, buf_size);
 832                         if (!p) {
 833                                 free(var_name16);
 834                                 return CMD_RET_FAILURE;
 835                         }
 836                         var_name16 = p;
 837                         ret = EFI_CALL(efi_get_next_variable_name(&size,
 838                                                                   var_name16,
 839                                                                   &guid));
 840                 }
 841                 if (ret != EFI_SUCCESS) {
 842                         free(var_name16);
 843                         return CMD_RET_FAILURE;
 844                 }
 845
 846                 if (memcmp(var_name16, L"Boot", 8))
 847                         continue;
 848
 849                 for (id = 0, i = 0; i < 4; i++) {
 850                         digit = u16_tohex(var_name16[4 + i]);
 851                         if (digit < 0)
 852                                 break;
 853                         id = (id << 4) + digit;
 854                 }
 855                 if (i == 4 && !var_name16[8])
 856                         show_efi_boot_opt(var_name16);
 857         }
 858
 859         free(var_name16);
 860
 861         return CMD_RET_SUCCESS;
 862 }
 863
 864 /**
 865  * show_efi_boot_order() - show order of UEFI load options
 866  *
 867  * Return:      CMD_RET_SUCCESS on success, CMD_RET_RET_FAILURE on failure
 868  *
 869  * Show order of UEFI load options defined by BootOrder variable.
 870  */
 871 static int show_efi_boot_order(void)
 872 {
 873         u16 *bootorder;
 874         efi_uintn_t size;
 875         int num, i;
 876         char var_name[9];
 877         u16 var_name16[9], *p16;
 878         void *data;
 879         struct efi_load_option lo;
 880         char *label, *p;
 881         size_t label_len16, label_len;
 882         efi_status_t ret;
 883
 884         size = 0;
 885         ret = EFI_CALL(efi_get_variable(L"BootOrder", &efi_global_variable_guid,
 886                                         NULL, &size, NULL));
 887         if (ret != EFI_BUFFER_TOO_SMALL) {
 888                 if (ret == EFI_NOT_FOUND) {
 889                         printf("BootOrder not defined\n");
 890                         return CMD_RET_SUCCESS;
 891                 } else {
 892                         return CMD_RET_FAILURE;
 893                 }
 894         }
 895         bootorder = malloc(size);
 896         if (!bootorder) {
 897                 printf("ERROR: Out of memory\n");
 898                 return CMD_RET_FAILURE;
 899         }
 900         ret = EFI_CALL(efi_get_variable(L"BootOrder", &efi_global_variable_guid,
 901                                         NULL, &size, bootorder));
 902         if (ret != EFI_SUCCESS) {
 903                 ret = CMD_RET_FAILURE;
 904                 goto out;
 905         }
 906
 907         num = size / sizeof(u16);
 908         for (i = 0; i < num; i++) {
 909                 sprintf(var_name, "Boot%04X", bootorder[i]);
 910                 p16 = var_name16;
 911                 utf8_utf16_strncpy(&p16, var_name, 9);
 912
 913                 size = 0;
 914                 ret = EFI_CALL(efi_get_variable(var_name16,
 915                                                 &efi_global_variable_guid, NULL,
 916                                                 &size, NULL));
 917                 if (ret != EFI_BUFFER_TOO_SMALL) {
 918                         printf("%2d: %s: (not defined)\n", i + 1, var_name);
 919                         continue;
 920                 }
 921
 922                 data = malloc(size);
 923                 if (!data) {
 924                         ret = CMD_RET_FAILURE;
 925                         goto out;
 926                 }
 927                 ret = EFI_CALL(efi_get_variable(var_name16,
 928                                                 &efi_global_variable_guid, NULL,
 929                                                 &size, data));
 930                 if (ret != EFI_SUCCESS) {
 931                         free(data);
 932                         ret = CMD_RET_FAILURE;
 933                         goto out;
 934                 }
 935
 936                 ret = efi_deserialize_load_option(&lo, data, &size);
 937                 if (ret != EFI_SUCCESS) {
 938                         printf("%ls: invalid load option\n", var_name16);
 939                         ret = CMD_RET_FAILURE;
 940                         goto out;
 941                 }
 942
 943                 label_len16 = u16_strlen(lo.label);
 944                 label_len = utf16_utf8_strnlen(lo.label, label_len16);
 945                 label = malloc(label_len + 1);
 946                 if (!label) {
 947                         free(data);
 948                         ret = CMD_RET_FAILURE;
 949                         goto out;
 950                 }
 951                 p = label;
 952                 utf16_utf8_strncpy(&p, lo.label, label_len16);
 953                 printf("%2d: %s: %s\n", i + 1, var_name, label);
 954                 free(label);
 955
 956                 free(data);
 957         }
 958 out:
 959         free(bootorder);
 960
 961         return ret;
 962 }
 963
 964 /**
 965  * do_efi_boot_next() - manage UEFI BootNext variable
 966  *
 967  * @cmdtp:      Command table
 968  * @flag:       Command flag
 969  * @argc:       Number of arguments
 970  * @argv:       Argument array
 971  * Return:      CMD_RET_SUCCESS on success,
 972  *              CMD_RET_USAGE or CMD_RET_RET_FAILURE on failure
 973  *
 974  * Implement efidebug "boot next" sub-command.
 975  * Set BootNext variable.
 976  *
 977  *     efidebug boot next <id>
 978  */
 979 static int do_efi_boot_next(struct cmd_tbl *cmdtp, int flag,
 980                             int argc, char *const argv[])
 981 {
 982         u16 bootnext;
 983         efi_uintn_t size;
 984         char *endp;
 985         efi_guid_t guid;
 986         efi_status_t ret;
 987         int r = CMD_RET_SUCCESS;
 988
 989         if (argc != 2)
 990                 return CMD_RET_USAGE;
 991
 992         bootnext = (u16)simple_strtoul(argv[1], &endp, 16);
 993         if (*endp) {
 994                 printf("invalid value: %s\n", argv[1]);
 995                 r = CMD_RET_FAILURE;
 996                 goto out;
 997         }
 998
 999         guid = efi_global_variable_guid;
1000         size = sizeof(u16);
1001         ret = EFI_CALL(efi_set_variable(L"BootNext", &guid,
1002                                         EFI_VARIABLE_NON_VOLATILE |
1003                                         EFI_VARIABLE_BOOTSERVICE_ACCESS |
1004                                         EFI_VARIABLE_RUNTIME_ACCESS,
1005                                         size, &bootnext));
1006         if (ret != EFI_SUCCESS) {
1007                 printf("Cannot set BootNext\n");
1008                 r = CMD_RET_FAILURE;
1009         }
1010 out:
1011         return r;
1012 }
1013
1014 /**
1015  * do_efi_boot_order() - manage UEFI BootOrder variable
1016  *
1017  * @cmdtp:      Command table
1018  * @flag:       Command flag
1019  * @argc:       Number of arguments
1020  * @argv:       Argument array
1021  * Return:      CMD_RET_SUCCESS on success, CMD_RET_RET_FAILURE on failure
1022  *
1023  * Implement efidebug "boot order" sub-command.
1024  * Show order of UEFI load options, or change it in BootOrder variable.
1025  *
1026  *     efidebug boot order [<id> ...]
1027  */
1028 static int do_efi_boot_order(struct cmd_tbl *cmdtp, int flag,
1029                              int argc, char *const argv[])
1030 {
1031         u16 *bootorder = NULL;
1032         efi_uintn_t size;
1033         int id, i;
1034         char *endp;
1035         efi_guid_t guid;
1036         efi_status_t ret;
1037         int r = CMD_RET_SUCCESS;
1038
1039         if (argc == 1)
1040                 return show_efi_boot_order();
1041
1042         argc--;
1043         argv++;
1044
1045         size = argc * sizeof(u16);
1046         bootorder = malloc(size);
1047         if (!bootorder)
1048                 return CMD_RET_FAILURE;
1049
1050         for (i = 0; i < argc; i++) {
1051                 id = (int)simple_strtoul(argv[i], &endp, 16);
1052                 if (*endp != '\0' || id > 0xffff) {
1053                         printf("invalid value: %s\n", argv[i]);
1054                         r = CMD_RET_FAILURE;
1055                         goto out;
1056                 }
1057
1058                 bootorder[i] = (u16)id;
1059         }
1060
1061         guid = efi_global_variable_guid;
1062         ret = EFI_CALL(efi_set_variable(L"BootOrder", &guid,
1063                                         EFI_VARIABLE_NON_VOLATILE |
1064                                         EFI_VARIABLE_BOOTSERVICE_ACCESS |
1065                                         EFI_VARIABLE_RUNTIME_ACCESS,
1066                                         size, bootorder));
1067         if (ret != EFI_SUCCESS) {
1068                 printf("Cannot set BootOrder\n");
1069                 r = CMD_RET_FAILURE;
1070         }
1071 out:
1072         free(bootorder);
1073
1074         return r;
1075 }
1076
1077 static struct cmd_tbl cmd_efidebug_boot_sub[] = {
1078         U_BOOT_CMD_MKENT(add, CONFIG_SYS_MAXARGS, 1, do_efi_boot_add, "", ""),
1079         U_BOOT_CMD_MKENT(rm, CONFIG_SYS_MAXARGS, 1, do_efi_boot_rm, "", ""),
1080         U_BOOT_CMD_MKENT(dump, CONFIG_SYS_MAXARGS, 1, do_efi_boot_dump, "", ""),
1081         U_BOOT_CMD_MKENT(next, CONFIG_SYS_MAXARGS, 1, do_efi_boot_next, "", ""),
1082         U_BOOT_CMD_MKENT(order, CONFIG_SYS_MAXARGS, 1, do_efi_boot_order,
1083                          "", ""),
1084 };
1085
1086 /**
1087  * do_efi_boot_opt() - manage UEFI load options
1088  *
1089  * @cmdtp:      Command table
1090  * @flag:       Command flag
1091  * @argc:       Number of arguments
1092  * @argv:       Argument array
1093  * Return:      CMD_RET_SUCCESS on success,
1094  *              CMD_RET_USAGE or CMD_RET_RET_FAILURE on failure
1095  *
1096  * Implement efidebug "boot" sub-command.
1097  */
1098 static int do_efi_boot_opt(struct cmd_tbl *cmdtp, int flag,
1099                            int argc, char *const argv[])
1100 {
1101         struct cmd_tbl *cp;
1102
1103         if (argc < 2)
1104                 return CMD_RET_USAGE;
1105
1106         argc--; argv++;
1107
1108         cp = find_cmd_tbl(argv[0], cmd_efidebug_boot_sub,
1109                           ARRAY_SIZE(cmd_efidebug_boot_sub));
1110         if (!cp)
1111                 return CMD_RET_USAGE;
1112
1113         return cp->cmd(cmdtp, flag, argc, argv);
1114 }
1115
1116 /**
1117  * do_efi_test_bootmgr() - run simple bootmgr for test
1118  *
1119  * @cmdtp:      Command table
1120  * @flag:       Command flag
1121  * @argc:       Number of arguments
1122  * @argv:       Argument array
1123  * Return:      CMD_RET_SUCCESS on success,
1124  *              CMD_RET_USAGE or CMD_RET_RET_FAILURE on failure
1125  *
1126  * Implement efidebug "test bootmgr" sub-command.
1127  * Run simple bootmgr for test.
1128  *
1129  *     efidebug test bootmgr
1130  */
1131 static int do_efi_test_bootmgr(struct cmd_tbl *cmdtp, int flag,
1132                                int argc, char * const argv[])
1133 {
1134         efi_handle_t image;
1135         efi_uintn_t exit_data_size = 0;
1136         u16 *exit_data = NULL;
1137         efi_status_t ret;
1138         void *load_options = NULL;
1139
1140         ret = efi_bootmgr_load(&image, &load_options);
1141         printf("efi_bootmgr_load() returned: %ld\n", ret & ~EFI_ERROR_MASK);
1142
1143         /* We call efi_start_image() even if error for test purpose. */
1144         ret = EFI_CALL(efi_start_image(image, &exit_data_size, &exit_data));
1145         printf("efi_start_image() returned: %ld\n", ret & ~EFI_ERROR_MASK);
1146         if (ret && exit_data)
1147                 efi_free_pool(exit_data);
1148
1149         efi_restore_gd();
1150
1151         free(load_options);
1152         return CMD_RET_SUCCESS;
1153 }
1154
1155 static struct cmd_tbl cmd_efidebug_test_sub[] = {
1156         U_BOOT_CMD_MKENT(bootmgr, CONFIG_SYS_MAXARGS, 1, do_efi_test_bootmgr,
1157                          "", ""),
1158 };
1159
1160 /**
1161  * do_efi_test() - manage UEFI load options
1162  *
1163  * @cmdtp:      Command table
1164  * @flag:       Command flag
1165  * @argc:       Number of arguments
1166  * @argv:       Argument array
1167  * Return:      CMD_RET_SUCCESS on success,
1168  *              CMD_RET_USAGE or CMD_RET_RET_FAILURE on failure
1169  *
1170  * Implement efidebug "test" sub-command.
1171  */
1172 static int do_efi_test(struct cmd_tbl *cmdtp, int flag,
1173                        int argc, char * const argv[])
1174 {
1175         struct cmd_tbl *cp;
1176
1177         if (argc < 2)
1178                 return CMD_RET_USAGE;
1179
1180         argc--; argv++;
1181
1182         cp = find_cmd_tbl(argv[0], cmd_efidebug_test_sub,
1183                           ARRAY_SIZE(cmd_efidebug_test_sub));
1184         if (!cp)
1185                 return CMD_RET_USAGE;
1186
1187         return cp->cmd(cmdtp, flag, argc, argv);
1188 }
1189
1190 /**
1191  * do_efi_query_info() - QueryVariableInfo EFI service
1192  *
1193  * @cmdtp:      Command table
1194  * @flag:       Command flag
1195  * @argc:       Number of arguments
1196  * @argv:       Argument array
1197  * Return:      CMD_RET_SUCCESS on success,
1198  *              CMD_RET_USAGE or CMD_RET_FAILURE on failure
1199  *
1200  * Implement efidebug "test" sub-command.
1201  */
1202
1203 static int do_efi_query_info(struct cmd_tbl *cmdtp, int flag,
1204                              int argc, char * const argv[])
1205 {
1206         efi_status_t ret;
1207         u32 attr = 0;
1208         u64 max_variable_storage_size;
1209         u64 remain_variable_storage_size;
1210         u64 max_variable_size;
1211         int i;
1212
1213         for (i = 1; i < argc; i++) {
1214                 if (!strcmp(argv[i], "-bs"))
1215                         attr |= EFI_VARIABLE_BOOTSERVICE_ACCESS;
1216                 else if (!strcmp(argv[i], "-rt"))
1217                         attr |= EFI_VARIABLE_RUNTIME_ACCESS;
1218                 else if (!strcmp(argv[i], "-nv"))
1219                         attr |= EFI_VARIABLE_NON_VOLATILE;
1220                 else if (!strcmp(argv[i], "-at"))
1221                         attr |=
1222                                 EFI_VARIABLE_TIME_BASED_AUTHENTICATED_WRITE_ACCESS;
1223         }
1224
1225         ret = EFI_CALL(efi_query_variable_info(attr,
1226                                                &max_variable_storage_size,
1227                                                &remain_variable_storage_size,
1228                                                &max_variable_size));
1229         if (ret != EFI_SUCCESS) {
1230                 printf("Error: Cannot query UEFI variables, r = %lu\n",
1231                        ret & ~EFI_ERROR_MASK);
1232                 return CMD_RET_FAILURE;
1233         }
1234
1235         printf("Max storage size %llu\n", max_variable_storage_size);
1236         printf("Remaining storage size %llu\n", remain_variable_storage_size);
1237         printf("Max variable size %llu\n", max_variable_size);
1238
1239         return CMD_RET_SUCCESS;
1240 }
1241
1242 static struct cmd_tbl cmd_efidebug_sub[] = {
1243         U_BOOT_CMD_MKENT(boot, CONFIG_SYS_MAXARGS, 1, do_efi_boot_opt, "", ""),
1244         U_BOOT_CMD_MKENT(devices, CONFIG_SYS_MAXARGS, 1, do_efi_show_devices,
1245                          "", ""),
1246         U_BOOT_CMD_MKENT(drivers, CONFIG_SYS_MAXARGS, 1, do_efi_show_drivers,
1247                          "", ""),
1248         U_BOOT_CMD_MKENT(dh, CONFIG_SYS_MAXARGS, 1, do_efi_show_handles,
1249                          "", ""),
1250         U_BOOT_CMD_MKENT(images, CONFIG_SYS_MAXARGS, 1, do_efi_show_images,
1251                          "", ""),
1252         U_BOOT_CMD_MKENT(memmap, CONFIG_SYS_MAXARGS, 1, do_efi_show_memmap,
1253                          "", ""),
1254         U_BOOT_CMD_MKENT(tables, CONFIG_SYS_MAXARGS, 1, do_efi_show_tables,
1255                          "", ""),
1256         U_BOOT_CMD_MKENT(test, CONFIG_SYS_MAXARGS, 1, do_efi_test,
1257                          "", ""),
1258         U_BOOT_CMD_MKENT(query, CONFIG_SYS_MAXARGS, 1, do_efi_query_info,
1259                          "", ""),
1260 };
1261
1262 /**
1263  * do_efidebug() - display and configure UEFI environment
1264  *
1265  * @cmdtp:      Command table
1266  * @flag:       Command flag
1267  * @argc:       Number of arguments
1268  * @argv:       Argument array
1269  * Return:      CMD_RET_SUCCESS on success,
1270  *              CMD_RET_USAGE or CMD_RET_RET_FAILURE on failure
1271  *
1272  * Implement efidebug command which allows us to display and
1273  * configure UEFI environment.
1274  */
1275 static int do_efidebug(struct cmd_tbl *cmdtp, int flag,
1276                        int argc, char *const argv[])
1277 {
1278         struct cmd_tbl *cp;
1279         efi_status_t r;
1280
1281         if (argc < 2)
1282                 return CMD_RET_USAGE;
1283
1284         argc--; argv++;
1285
1286         /* Initialize UEFI drivers */
1287         r = efi_init_obj_list();
1288         if (r != EFI_SUCCESS) {
1289                 printf("Error: Cannot initialize UEFI sub-system, r = %lu\n",
1290                        r & ~EFI_ERROR_MASK);
1291                 return CMD_RET_FAILURE;
1292         }
1293
1294         cp = find_cmd_tbl(argv[0], cmd_efidebug_sub,
1295                           ARRAY_SIZE(cmd_efidebug_sub));
1296         if (!cp)
1297                 return CMD_RET_USAGE;
1298
1299         return cp->cmd(cmdtp, flag, argc, argv);
1300 }
1301
1302 #ifdef CONFIG_SYS_LONGHELP
1303 static char efidebug_help_text[] =
1304         "  - UEFI Shell-like interface to configure UEFI environment\n"
1305         "\n"
1306         "efidebug boot add <bootid> <label> <interface> <devnum>[:<part>] <file path> [<load options>]\n"
1307         "  - set UEFI BootXXXX variable\n"
1308         "    <load options> will be passed to UEFI application\n"
1309         "efidebug boot rm <bootid#1> [<bootid#2> [<bootid#3> [...]]]\n"
1310         "  - delete UEFI BootXXXX variables\n"
1311         "efidebug boot dump\n"
1312         "  - dump all UEFI BootXXXX variables\n"
1313         "efidebug boot next <bootid>\n"
1314         "  - set UEFI BootNext variable\n"
1315         "efidebug boot order [<bootid#1> [<bootid#2> [<bootid#3> [...]]]]\n"
1316         "  - set/show UEFI boot order\n"
1317         "\n"
1318         "efidebug devices\n"
1319         "  - show UEFI devices\n"
1320         "efidebug drivers\n"
1321         "  - show UEFI drivers\n"
1322         "efidebug dh\n"
1323         "  - show UEFI handles\n"
1324         "efidebug images\n"
1325         "  - show loaded images\n"
1326         "efidebug memmap\n"
1327         "  - show UEFI memory map\n"
1328         "efidebug tables\n"
1329         "  - show UEFI configuration tables\n"
1330         "efidebug test bootmgr\n"
1331         "  - run simple bootmgr for test\n"
1332         "efidebug query [-nv][-bs][-rt][-at]\n"
1333         "  - show size of UEFI variables store\n";
1334 #endif
1335
1336 U_BOOT_CMD(
1337         efidebug, 10, 0, do_efidebug,
1338         "Configure UEFI environment",
1339         efidebug_help_text
1340 );