1 /* 2 * EFI application boot time services 3 * 4 * Copyright (c) 2016 Alexander Graf 5 * 6 * SPDX-License-Identifier: GPL-2.0+ 7 */ 8 9 /* #define DEBUG_EFI */ 10 11 #include <common.h> 12 #include <efi_loader.h> 13 #include <malloc.h> 14 #include <asm/global_data.h> 15 #include <libfdt_env.h> 16 #include <u-boot/crc.h> 17 #include <bootm.h> 18 #include <inttypes.h> 19 #include <watchdog.h> 20 21 DECLARE_GLOBAL_DATA_PTR; 22 23 /* This list contains all the EFI objects our payload has access to */ 24 LIST_HEAD(efi_obj_list); 25 26 /* 27 * If we're running on nasty systems (32bit ARM booting into non-EFI Linux) 28 * we need to do trickery with caches. Since we don't want to break the EFI 29 * aware boot path, only apply hacks when loading exiting directly (breaking 30 * direct Linux EFI booting along the way - oh well). 31 */ 32 static bool efi_is_direct_boot = true; 33 34 /* 35 * EFI can pass arbitrary additional "tables" containing vendor specific 36 * information to the payload. One such table is the FDT table which contains 37 * a pointer to a flattened device tree blob. 38 * 39 * In most cases we want to pass an FDT to the payload, so reserve one slot of 40 * config table space for it. The pointer gets populated by do_bootefi_exec(). 41 */ 42 static struct efi_configuration_table EFI_RUNTIME_DATA efi_conf_table[1]; 43 44 /* 45 * The "gd" pointer lives in a register on ARM and AArch64 that we declare 46 * fixed when compiling U-Boot. However, the payload does not know about that 47 * restriction so we need to manually swap its and our view of that register on 48 * EFI callback entry/exit. 49 */ 50 static volatile void *efi_gd, *app_gd; 51 52 /* Called from do_bootefi_exec() */ 53 void efi_save_gd(void) 54 { 55 efi_gd = gd; 56 } 57 58 /* Called on every callback entry */ 59 void efi_restore_gd(void) 60 { 61 /* Only restore if we're already in EFI context */ 62 if (!efi_gd) 63 return; 64 65 if (gd != efi_gd) 66 app_gd = gd; 67 gd = efi_gd; 68 } 69 70 /* Called on every callback exit */ 71 efi_status_t efi_exit_func(efi_status_t ret) 72 { 73 gd = app_gd; 74 return ret; 75 } 76 77 static efi_status_t efi_unsupported(const char *funcname) 78 { 79 #ifdef DEBUG_EFI 80 printf("EFI: App called into unimplemented function %s\n", funcname); 81 #endif 82 return EFI_EXIT(EFI_UNSUPPORTED); 83 } 84 85 static int guidcmp(const efi_guid_t *g1, const efi_guid_t *g2) 86 { 87 return memcmp(g1, g2, sizeof(efi_guid_t)); 88 } 89 90 static unsigned long EFIAPI efi_raise_tpl(unsigned long new_tpl) 91 { 92 EFI_ENTRY("0x%lx", new_tpl); 93 return EFI_EXIT(0); 94 } 95 96 static void EFIAPI efi_restore_tpl(unsigned long old_tpl) 97 { 98 EFI_ENTRY("0x%lx", old_tpl); 99 EFI_EXIT(efi_unsupported(__func__)); 100 } 101 102 efi_status_t EFIAPI efi_allocate_pages_ext(int type, int memory_type, 103 unsigned long pages, 104 uint64_t *memory) 105 { 106 efi_status_t r; 107 108 EFI_ENTRY("%d, %d, 0x%lx, %p", type, memory_type, pages, memory); 109 r = efi_allocate_pages(type, memory_type, pages, memory); 110 return EFI_EXIT(r); 111 } 112 113 efi_status_t EFIAPI efi_free_pages_ext(uint64_t memory, unsigned long pages) 114 { 115 efi_status_t r; 116 117 EFI_ENTRY("%"PRIx64", 0x%lx", memory, pages); 118 r = efi_free_pages(memory, pages); 119 return EFI_EXIT(r); 120 } 121 122 efi_status_t EFIAPI efi_get_memory_map_ext(unsigned long *memory_map_size, 123 struct efi_mem_desc *memory_map, 124 unsigned long *map_key, 125 unsigned long *descriptor_size, 126 uint32_t *descriptor_version) 127 { 128 efi_status_t r; 129 130 EFI_ENTRY("%p, %p, %p, %p, %p", memory_map_size, memory_map, 131 map_key, descriptor_size, descriptor_version); 132 r = efi_get_memory_map(memory_map_size, memory_map, map_key, 133 descriptor_size, descriptor_version); 134 return EFI_EXIT(r); 135 } 136 137 static efi_status_t EFIAPI efi_allocate_pool(int pool_type, unsigned long size, 138 void **buffer) 139 { 140 return efi_allocate_pages(0, pool_type, (size + 0xfff) >> 12, (void*)buffer); 141 } 142 143 static efi_status_t EFIAPI efi_free_pool(void *buffer) 144 { 145 return efi_free_pages((ulong)buffer, 0); 146 } 147 148 /* 149 * Our event capabilities are very limited. Only support a single 150 * event to exist, so we don't need to maintain lists. 151 */ 152 static struct { 153 enum efi_event_type type; 154 u32 trigger_type; 155 u32 trigger_time; 156 u64 trigger_next; 157 unsigned long notify_tpl; 158 void (*notify_function) (void *event, void *context); 159 void *notify_context; 160 } efi_event = { 161 /* Disable timers on bootup */ 162 .trigger_next = -1ULL, 163 }; 164 165 static efi_status_t EFIAPI efi_create_event( 166 enum efi_event_type type, ulong notify_tpl, 167 void (*notify_function) (void *event, void *context), 168 void *notify_context, void **event) 169 { 170 EFI_ENTRY("%d, 0x%lx, %p, %p", type, notify_tpl, notify_function, 171 notify_context); 172 if (efi_event.notify_function) { 173 /* We only support one event at a time */ 174 return EFI_EXIT(EFI_OUT_OF_RESOURCES); 175 } 176 177 efi_event.type = type; 178 efi_event.notify_tpl = notify_tpl; 179 efi_event.notify_function = notify_function; 180 efi_event.notify_context = notify_context; 181 *event = &efi_event; 182 183 return EFI_EXIT(EFI_SUCCESS); 184 } 185 186 /* 187 * Our timers have to work without interrupts, so we check whenever keyboard 188 * input or disk accesses happen if enough time elapsed for it to fire. 189 */ 190 void efi_timer_check(void) 191 { 192 u64 now = timer_get_us(); 193 194 if (now >= efi_event.trigger_next) { 195 /* Triggering! */ 196 if (efi_event.trigger_type == EFI_TIMER_PERIODIC) 197 efi_event.trigger_next += efi_event.trigger_time / 10; 198 efi_event.notify_function(&efi_event, efi_event.notify_context); 199 } 200 201 WATCHDOG_RESET(); 202 } 203 204 static efi_status_t EFIAPI efi_set_timer(void *event, int type, 205 uint64_t trigger_time) 206 { 207 /* We don't have 64bit division available everywhere, so limit timer 208 * distances to 32bit bits. */ 209 u32 trigger32 = trigger_time; 210 211 EFI_ENTRY("%p, %d, %"PRIx64, event, type, trigger_time); 212 213 if (trigger32 < trigger_time) { 214 printf("WARNING: Truncating timer from %"PRIx64" to %x\n", 215 trigger_time, trigger32); 216 } 217 218 if (event != &efi_event) { 219 /* We only support one event at a time */ 220 return EFI_EXIT(EFI_INVALID_PARAMETER); 221 } 222 223 switch (type) { 224 case EFI_TIMER_STOP: 225 efi_event.trigger_next = -1ULL; 226 break; 227 case EFI_TIMER_PERIODIC: 228 case EFI_TIMER_RELATIVE: 229 efi_event.trigger_next = timer_get_us() + (trigger32 / 10); 230 break; 231 default: 232 return EFI_EXIT(EFI_INVALID_PARAMETER); 233 } 234 efi_event.trigger_type = type; 235 efi_event.trigger_time = trigger_time; 236 237 return EFI_EXIT(EFI_SUCCESS); 238 } 239 240 static efi_status_t EFIAPI efi_wait_for_event(unsigned long num_events, 241 void *event, unsigned long *index) 242 { 243 u64 now; 244 245 EFI_ENTRY("%ld, %p, %p", num_events, event, index); 246 247 now = timer_get_us(); 248 while (now < efi_event.trigger_next) { } 249 efi_timer_check(); 250 251 return EFI_EXIT(EFI_SUCCESS); 252 } 253 254 static efi_status_t EFIAPI efi_signal_event(void *event) 255 { 256 EFI_ENTRY("%p", event); 257 return EFI_EXIT(EFI_SUCCESS); 258 } 259 260 static efi_status_t EFIAPI efi_close_event(void *event) 261 { 262 EFI_ENTRY("%p", event); 263 efi_event.trigger_next = -1ULL; 264 return EFI_EXIT(EFI_SUCCESS); 265 } 266 267 static efi_status_t EFIAPI efi_check_event(void *event) 268 { 269 EFI_ENTRY("%p", event); 270 return EFI_EXIT(EFI_NOT_READY); 271 } 272 273 static efi_status_t EFIAPI efi_install_protocol_interface(void **handle, 274 efi_guid_t *protocol, int protocol_interface_type, 275 void *protocol_interface) 276 { 277 EFI_ENTRY("%p, %p, %d, %p", handle, protocol, protocol_interface_type, 278 protocol_interface); 279 return EFI_EXIT(EFI_OUT_OF_RESOURCES); 280 } 281 static efi_status_t EFIAPI efi_reinstall_protocol_interface(void *handle, 282 efi_guid_t *protocol, void *old_interface, 283 void *new_interface) 284 { 285 EFI_ENTRY("%p, %p, %p, %p", handle, protocol, old_interface, 286 new_interface); 287 return EFI_EXIT(EFI_ACCESS_DENIED); 288 } 289 290 static efi_status_t EFIAPI efi_uninstall_protocol_interface(void *handle, 291 efi_guid_t *protocol, void *protocol_interface) 292 { 293 EFI_ENTRY("%p, %p, %p", handle, protocol, protocol_interface); 294 return EFI_EXIT(EFI_NOT_FOUND); 295 } 296 297 static efi_status_t EFIAPI efi_register_protocol_notify(efi_guid_t *protocol, 298 void *event, 299 void **registration) 300 { 301 EFI_ENTRY("%p, %p, %p", protocol, event, registration); 302 return EFI_EXIT(EFI_OUT_OF_RESOURCES); 303 } 304 305 static int efi_search(enum efi_locate_search_type search_type, 306 efi_guid_t *protocol, void *search_key, 307 struct efi_object *efiobj) 308 { 309 int i; 310 311 switch (search_type) { 312 case all_handles: 313 return 0; 314 case by_register_notify: 315 return -1; 316 case by_protocol: 317 for (i = 0; i < ARRAY_SIZE(efiobj->protocols); i++) { 318 const efi_guid_t *guid = efiobj->protocols[i].guid; 319 if (guid && !guidcmp(guid, protocol)) 320 return 0; 321 } 322 return -1; 323 } 324 325 return -1; 326 } 327 328 static efi_status_t EFIAPI efi_locate_handle( 329 enum efi_locate_search_type search_type, 330 efi_guid_t *protocol, void *search_key, 331 unsigned long *buffer_size, efi_handle_t *buffer) 332 { 333 struct list_head *lhandle; 334 unsigned long size = 0; 335 336 EFI_ENTRY("%d, %p, %p, %p, %p", search_type, protocol, search_key, 337 buffer_size, buffer); 338 339 /* Count how much space we need */ 340 list_for_each(lhandle, &efi_obj_list) { 341 struct efi_object *efiobj; 342 efiobj = list_entry(lhandle, struct efi_object, link); 343 if (!efi_search(search_type, protocol, search_key, efiobj)) { 344 size += sizeof(void*); 345 } 346 } 347 348 if (*buffer_size < size) { 349 *buffer_size = size; 350 return EFI_EXIT(EFI_BUFFER_TOO_SMALL); 351 } 352 353 /* Then fill the array */ 354 list_for_each(lhandle, &efi_obj_list) { 355 struct efi_object *efiobj; 356 efiobj = list_entry(lhandle, struct efi_object, link); 357 if (!efi_search(search_type, protocol, search_key, efiobj)) { 358 *(buffer++) = efiobj->handle; 359 } 360 } 361 362 *buffer_size = size; 363 return EFI_EXIT(EFI_SUCCESS); 364 } 365 366 static efi_status_t EFIAPI efi_locate_device_path(efi_guid_t *protocol, 367 struct efi_device_path **device_path, 368 efi_handle_t *device) 369 { 370 EFI_ENTRY("%p, %p, %p", protocol, device_path, device); 371 return EFI_EXIT(EFI_NOT_FOUND); 372 } 373 374 static efi_status_t EFIAPI efi_install_configuration_table(efi_guid_t *guid, 375 void *table) 376 { 377 int i; 378 379 EFI_ENTRY("%p, %p", guid, table); 380 381 /* Check for guid override */ 382 for (i = 0; i < systab.nr_tables; i++) { 383 if (!guidcmp(guid, &efi_conf_table[i].guid)) { 384 efi_conf_table[i].table = table; 385 return EFI_EXIT(EFI_SUCCESS); 386 } 387 } 388 389 /* No override, check for overflow */ 390 if (i >= ARRAY_SIZE(efi_conf_table)) 391 return EFI_EXIT(EFI_OUT_OF_RESOURCES); 392 393 /* Add a new entry */ 394 memcpy(&efi_conf_table[i].guid, guid, sizeof(*guid)); 395 efi_conf_table[i].table = table; 396 systab.nr_tables = i; 397 398 return EFI_EXIT(EFI_SUCCESS); 399 } 400 401 static efi_status_t EFIAPI efi_load_image(bool boot_policy, 402 efi_handle_t parent_image, 403 struct efi_device_path *file_path, 404 void *source_buffer, 405 unsigned long source_size, 406 efi_handle_t *image_handle) 407 { 408 static struct efi_object loaded_image_info_obj = { 409 .protocols = { 410 { 411 .guid = &efi_guid_loaded_image, 412 .open = &efi_return_handle, 413 }, 414 }, 415 }; 416 struct efi_loaded_image *info; 417 struct efi_object *obj; 418 419 EFI_ENTRY("%d, %p, %p, %p, %ld, %p", boot_policy, parent_image, 420 file_path, source_buffer, source_size, image_handle); 421 info = malloc(sizeof(*info)); 422 obj = malloc(sizeof(loaded_image_info_obj)); 423 memset(info, 0, sizeof(*info)); 424 memcpy(obj, &loaded_image_info_obj, sizeof(loaded_image_info_obj)); 425 obj->handle = info; 426 info->file_path = file_path; 427 info->reserved = efi_load_pe(source_buffer, info); 428 if (!info->reserved) { 429 free(info); 430 free(obj); 431 return EFI_EXIT(EFI_UNSUPPORTED); 432 } 433 434 *image_handle = info; 435 list_add_tail(&obj->link, &efi_obj_list); 436 437 return EFI_EXIT(EFI_SUCCESS); 438 } 439 440 static efi_status_t EFIAPI efi_start_image(efi_handle_t image_handle, 441 unsigned long *exit_data_size, 442 s16 **exit_data) 443 { 444 ulong (*entry)(void *image_handle, struct efi_system_table *st); 445 struct efi_loaded_image *info = image_handle; 446 447 EFI_ENTRY("%p, %p, %p", image_handle, exit_data_size, exit_data); 448 entry = info->reserved; 449 450 efi_is_direct_boot = false; 451 452 /* call the image! */ 453 entry(image_handle, &systab); 454 455 /* Should usually never get here */ 456 return EFI_EXIT(EFI_SUCCESS); 457 } 458 459 static efi_status_t EFIAPI efi_exit(void *image_handle, long exit_status, 460 unsigned long exit_data_size, 461 uint16_t *exit_data) 462 { 463 EFI_ENTRY("%p, %ld, %ld, %p", image_handle, exit_status, 464 exit_data_size, exit_data); 465 return EFI_EXIT(efi_unsupported(__func__)); 466 } 467 468 static struct efi_object *efi_search_obj(void *handle) 469 { 470 struct list_head *lhandle; 471 472 list_for_each(lhandle, &efi_obj_list) { 473 struct efi_object *efiobj; 474 efiobj = list_entry(lhandle, struct efi_object, link); 475 if (efiobj->handle == handle) 476 return efiobj; 477 } 478 479 return NULL; 480 } 481 482 static efi_status_t EFIAPI efi_unload_image(void *image_handle) 483 { 484 struct efi_object *efiobj; 485 486 EFI_ENTRY("%p", image_handle); 487 efiobj = efi_search_obj(image_handle); 488 if (efiobj) 489 list_del(&efiobj->link); 490 491 return EFI_EXIT(EFI_SUCCESS); 492 } 493 494 static void efi_exit_caches(void) 495 { 496 #if defined(CONFIG_ARM) && !defined(CONFIG_ARM64) 497 /* 498 * Grub on 32bit ARM needs to have caches disabled before jumping into 499 * a zImage, but does not know of all cache layers. Give it a hand. 500 */ 501 if (efi_is_direct_boot) 502 cleanup_before_linux(); 503 #endif 504 } 505 506 static efi_status_t EFIAPI efi_exit_boot_services(void *image_handle, 507 unsigned long map_key) 508 { 509 EFI_ENTRY("%p, %ld", image_handle, map_key); 510 511 /* Fix up caches for EFI payloads if necessary */ 512 efi_exit_caches(); 513 514 /* This stops all lingering devices */ 515 bootm_disable_interrupts(); 516 517 /* Give the payload some time to boot */ 518 WATCHDOG_RESET(); 519 520 return EFI_EXIT(EFI_SUCCESS); 521 } 522 523 static efi_status_t EFIAPI efi_get_next_monotonic_count(uint64_t *count) 524 { 525 static uint64_t mono = 0; 526 EFI_ENTRY("%p", count); 527 *count = mono++; 528 return EFI_EXIT(EFI_SUCCESS); 529 } 530 531 static efi_status_t EFIAPI efi_stall(unsigned long microseconds) 532 { 533 EFI_ENTRY("%ld", microseconds); 534 udelay(microseconds); 535 return EFI_EXIT(EFI_SUCCESS); 536 } 537 538 static efi_status_t EFIAPI efi_set_watchdog_timer(unsigned long timeout, 539 uint64_t watchdog_code, 540 unsigned long data_size, 541 uint16_t *watchdog_data) 542 { 543 EFI_ENTRY("%ld, 0x%"PRIx64", %ld, %p", timeout, watchdog_code, 544 data_size, watchdog_data); 545 return EFI_EXIT(efi_unsupported(__func__)); 546 } 547 548 static efi_status_t EFIAPI efi_connect_controller( 549 efi_handle_t controller_handle, 550 efi_handle_t *driver_image_handle, 551 struct efi_device_path *remain_device_path, 552 bool recursive) 553 { 554 EFI_ENTRY("%p, %p, %p, %d", controller_handle, driver_image_handle, 555 remain_device_path, recursive); 556 return EFI_EXIT(EFI_NOT_FOUND); 557 } 558 559 static efi_status_t EFIAPI efi_disconnect_controller(void *controller_handle, 560 void *driver_image_handle, 561 void *child_handle) 562 { 563 EFI_ENTRY("%p, %p, %p", controller_handle, driver_image_handle, 564 child_handle); 565 return EFI_EXIT(EFI_INVALID_PARAMETER); 566 } 567 568 static efi_status_t EFIAPI efi_close_protocol(void *handle, 569 efi_guid_t *protocol, 570 void *agent_handle, 571 void *controller_handle) 572 { 573 EFI_ENTRY("%p, %p, %p, %p", handle, protocol, agent_handle, 574 controller_handle); 575 return EFI_EXIT(EFI_NOT_FOUND); 576 } 577 578 static efi_status_t EFIAPI efi_open_protocol_information(efi_handle_t handle, 579 efi_guid_t *protocol, 580 struct efi_open_protocol_info_entry **entry_buffer, 581 unsigned long *entry_count) 582 { 583 EFI_ENTRY("%p, %p, %p, %p", handle, protocol, entry_buffer, 584 entry_count); 585 return EFI_EXIT(EFI_NOT_FOUND); 586 } 587 588 static efi_status_t EFIAPI efi_protocols_per_handle(void *handle, 589 efi_guid_t ***protocol_buffer, 590 unsigned long *protocol_buffer_count) 591 { 592 EFI_ENTRY("%p, %p, %p", handle, protocol_buffer, 593 protocol_buffer_count); 594 return EFI_EXIT(EFI_OUT_OF_RESOURCES); 595 } 596 597 static efi_status_t EFIAPI efi_locate_handle_buffer( 598 enum efi_locate_search_type search_type, 599 efi_guid_t *protocol, void *search_key, 600 unsigned long *no_handles, efi_handle_t **buffer) 601 { 602 EFI_ENTRY("%d, %p, %p, %p, %p", search_type, protocol, search_key, 603 no_handles, buffer); 604 return EFI_EXIT(EFI_NOT_FOUND); 605 } 606 607 static struct efi_class_map efi_class_maps[] = { 608 { 609 .guid = &efi_guid_console_control, 610 .interface = &efi_console_control 611 }, 612 }; 613 614 static efi_status_t EFIAPI efi_locate_protocol(efi_guid_t *protocol, 615 void *registration, 616 void **protocol_interface) 617 { 618 int i; 619 620 EFI_ENTRY("%p, %p, %p", protocol, registration, protocol_interface); 621 for (i = 0; i < ARRAY_SIZE(efi_class_maps); i++) { 622 struct efi_class_map *curmap = &efi_class_maps[i]; 623 if (!guidcmp(protocol, curmap->guid)) { 624 *protocol_interface = (void*)curmap->interface; 625 return EFI_EXIT(EFI_SUCCESS); 626 } 627 } 628 629 return EFI_EXIT(EFI_NOT_FOUND); 630 } 631 632 static efi_status_t EFIAPI efi_install_multiple_protocol_interfaces( 633 void **handle, ...) 634 { 635 EFI_ENTRY("%p", handle); 636 return EFI_EXIT(EFI_OUT_OF_RESOURCES); 637 } 638 639 static efi_status_t EFIAPI efi_uninstall_multiple_protocol_interfaces( 640 void *handle, ...) 641 { 642 EFI_ENTRY("%p", handle); 643 return EFI_EXIT(EFI_INVALID_PARAMETER); 644 } 645 646 static efi_status_t EFIAPI efi_calculate_crc32(void *data, 647 unsigned long data_size, 648 uint32_t *crc32_p) 649 { 650 EFI_ENTRY("%p, %ld", data, data_size); 651 *crc32_p = crc32(0, data, data_size); 652 return EFI_EXIT(EFI_SUCCESS); 653 } 654 655 static void EFIAPI efi_copy_mem(void *destination, void *source, 656 unsigned long length) 657 { 658 EFI_ENTRY("%p, %p, %ld", destination, source, length); 659 memcpy(destination, source, length); 660 } 661 662 static void EFIAPI efi_set_mem(void *buffer, unsigned long size, uint8_t value) 663 { 664 EFI_ENTRY("%p, %ld, 0x%x", buffer, size, value); 665 memset(buffer, value, size); 666 } 667 668 static efi_status_t EFIAPI efi_open_protocol( 669 void *handle, efi_guid_t *protocol, 670 void **protocol_interface, void *agent_handle, 671 void *controller_handle, uint32_t attributes) 672 { 673 struct list_head *lhandle; 674 int i; 675 efi_status_t r = EFI_UNSUPPORTED; 676 677 EFI_ENTRY("%p, %p, %p, %p, %p, 0x%x", handle, protocol, 678 protocol_interface, agent_handle, controller_handle, 679 attributes); 680 list_for_each(lhandle, &efi_obj_list) { 681 struct efi_object *efiobj; 682 efiobj = list_entry(lhandle, struct efi_object, link); 683 684 if (efiobj->handle != handle) 685 continue; 686 687 for (i = 0; i < ARRAY_SIZE(efiobj->protocols); i++) { 688 struct efi_handler *handler = &efiobj->protocols[i]; 689 const efi_guid_t *hprotocol = handler->guid; 690 if (!hprotocol) 691 break; 692 if (!guidcmp(hprotocol, protocol)) { 693 r = handler->open(handle, protocol, 694 protocol_interface, agent_handle, 695 controller_handle, attributes); 696 goto out; 697 } 698 } 699 } 700 701 out: 702 return EFI_EXIT(r); 703 } 704 705 static efi_status_t EFIAPI efi_handle_protocol(void *handle, 706 efi_guid_t *protocol, 707 void **protocol_interface) 708 { 709 EFI_ENTRY("%p, %p, %p", handle, protocol, protocol_interface); 710 return efi_open_protocol(handle, protocol, protocol_interface, 711 NULL, NULL, 0); 712 } 713 714 static const struct efi_boot_services efi_boot_services = { 715 .hdr = { 716 .headersize = sizeof(struct efi_table_hdr), 717 }, 718 .raise_tpl = efi_raise_tpl, 719 .restore_tpl = efi_restore_tpl, 720 .allocate_pages = efi_allocate_pages_ext, 721 .free_pages = efi_free_pages_ext, 722 .get_memory_map = efi_get_memory_map_ext, 723 .allocate_pool = efi_allocate_pool, 724 .free_pool = efi_free_pool, 725 .create_event = efi_create_event, 726 .set_timer = efi_set_timer, 727 .wait_for_event = efi_wait_for_event, 728 .signal_event = efi_signal_event, 729 .close_event = efi_close_event, 730 .check_event = efi_check_event, 731 .install_protocol_interface = efi_install_protocol_interface, 732 .reinstall_protocol_interface = efi_reinstall_protocol_interface, 733 .uninstall_protocol_interface = efi_uninstall_protocol_interface, 734 .handle_protocol = efi_handle_protocol, 735 .reserved = NULL, 736 .register_protocol_notify = efi_register_protocol_notify, 737 .locate_handle = efi_locate_handle, 738 .locate_device_path = efi_locate_device_path, 739 .install_configuration_table = efi_install_configuration_table, 740 .load_image = efi_load_image, 741 .start_image = efi_start_image, 742 .exit = (void*)efi_exit, 743 .unload_image = efi_unload_image, 744 .exit_boot_services = efi_exit_boot_services, 745 .get_next_monotonic_count = efi_get_next_monotonic_count, 746 .stall = efi_stall, 747 .set_watchdog_timer = efi_set_watchdog_timer, 748 .connect_controller = efi_connect_controller, 749 .disconnect_controller = efi_disconnect_controller, 750 .open_protocol = efi_open_protocol, 751 .close_protocol = efi_close_protocol, 752 .open_protocol_information = efi_open_protocol_information, 753 .protocols_per_handle = efi_protocols_per_handle, 754 .locate_handle_buffer = efi_locate_handle_buffer, 755 .locate_protocol = efi_locate_protocol, 756 .install_multiple_protocol_interfaces = efi_install_multiple_protocol_interfaces, 757 .uninstall_multiple_protocol_interfaces = efi_uninstall_multiple_protocol_interfaces, 758 .calculate_crc32 = efi_calculate_crc32, 759 .copy_mem = efi_copy_mem, 760 .set_mem = efi_set_mem, 761 }; 762 763 764 static uint16_t EFI_RUNTIME_DATA firmware_vendor[] = 765 { 'D','a','s',' ','U','-','b','o','o','t',0 }; 766 767 struct efi_system_table EFI_RUNTIME_DATA systab = { 768 .hdr = { 769 .signature = EFI_SYSTEM_TABLE_SIGNATURE, 770 .revision = 0x20005, /* 2.5 */ 771 .headersize = sizeof(struct efi_table_hdr), 772 }, 773 .fw_vendor = (long)firmware_vendor, 774 .con_in = (void*)&efi_con_in, 775 .con_out = (void*)&efi_con_out, 776 .std_err = (void*)&efi_con_out, 777 .runtime = (void*)&efi_runtime_services, 778 .boottime = (void*)&efi_boot_services, 779 .nr_tables = 0, 780 .tables = (void*)efi_conf_table, 781 }; 782