1 /* SPDX-License-Identifier: GPL-2.0 */ 2 3 #ifndef _DRIVERS_FIRMWARE_EFI_EFISTUB_H 4 #define _DRIVERS_FIRMWARE_EFI_EFISTUB_H 5 6 #include <linux/efi.h> 7 #include <linux/kernel.h> 8 #include <linux/types.h> 9 #include <asm/efi.h> 10 11 /* error code which can't be mistaken for valid address */ 12 #define EFI_ERROR (~0UL) 13 14 /* 15 * __init annotations should not be used in the EFI stub, since the code is 16 * either included in the decompressor (x86, ARM) where they have no effect, 17 * or the whole stub is __init annotated at the section level (arm64), by 18 * renaming the sections, in which case the __init annotation will be 19 * redundant, and will result in section names like .init.init.text, and our 20 * linker script does not expect that. 21 */ 22 #undef __init 23 24 /* 25 * Allow the platform to override the allocation granularity: this allows 26 * systems that have the capability to run with a larger page size to deal 27 * with the allocations for initrd and fdt more efficiently. 28 */ 29 #ifndef EFI_ALLOC_ALIGN 30 #define EFI_ALLOC_ALIGN EFI_PAGE_SIZE 31 #endif 32 33 extern bool efi_nochunk; 34 extern bool efi_nokaslr; 35 extern bool efi_noinitrd; 36 extern bool efi_quiet; 37 extern bool efi_novamap; 38 39 extern const efi_system_table_t *efi_system_table; 40 41 #ifndef ARCH_HAS_EFISTUB_WRAPPERS 42 43 #define efi_is_native() (true) 44 #define efi_bs_call(func, ...) efi_system_table->boottime->func(__VA_ARGS__) 45 #define efi_rt_call(func, ...) efi_system_table->runtime->func(__VA_ARGS__) 46 #define efi_table_attr(inst, attr) (inst->attr) 47 #define efi_call_proto(inst, func, ...) inst->func(inst, ##__VA_ARGS__) 48 49 #endif 50 51 #define efi_info(msg) do { \ 52 if (!efi_quiet) efi_puts("EFI stub: "msg); \ 53 } while (0) 54 55 #define efi_err(msg) efi_puts("EFI stub: ERROR: "msg) 56 57 /* Helper macros for the usual case of using simple C variables: */ 58 #ifndef fdt_setprop_inplace_var 59 #define fdt_setprop_inplace_var(fdt, node_offset, name, var) \ 60 fdt_setprop_inplace((fdt), (node_offset), (name), &(var), sizeof(var)) 61 #endif 62 63 #ifndef fdt_setprop_var 64 #define fdt_setprop_var(fdt, node_offset, name, var) \ 65 fdt_setprop((fdt), (node_offset), (name), &(var), sizeof(var)) 66 #endif 67 68 #define get_efi_var(name, vendor, ...) \ 69 efi_rt_call(get_variable, (efi_char16_t *)(name), \ 70 (efi_guid_t *)(vendor), __VA_ARGS__) 71 72 #define set_efi_var(name, vendor, ...) \ 73 efi_rt_call(set_variable, (efi_char16_t *)(name), \ 74 (efi_guid_t *)(vendor), __VA_ARGS__) 75 76 #define efi_get_handle_at(array, idx) \ 77 (efi_is_native() ? (array)[idx] \ 78 : (efi_handle_t)(unsigned long)((u32 *)(array))[idx]) 79 80 #define efi_get_handle_num(size) \ 81 ((size) / (efi_is_native() ? sizeof(efi_handle_t) : sizeof(u32))) 82 83 #define for_each_efi_handle(handle, array, size, i) \ 84 for (i = 0; \ 85 i < efi_get_handle_num(size) && \ 86 ((handle = efi_get_handle_at((array), i)) || true); \ 87 i++) 88 89 static inline 90 void efi_set_u64_split(u64 data, u32 *lo, u32 *hi) 91 { 92 *lo = lower_32_bits(data); 93 *hi = upper_32_bits(data); 94 } 95 96 /* 97 * Allocation types for calls to boottime->allocate_pages. 98 */ 99 #define EFI_ALLOCATE_ANY_PAGES 0 100 #define EFI_ALLOCATE_MAX_ADDRESS 1 101 #define EFI_ALLOCATE_ADDRESS 2 102 #define EFI_MAX_ALLOCATE_TYPE 3 103 104 /* 105 * The type of search to perform when calling boottime->locate_handle 106 */ 107 #define EFI_LOCATE_ALL_HANDLES 0 108 #define EFI_LOCATE_BY_REGISTER_NOTIFY 1 109 #define EFI_LOCATE_BY_PROTOCOL 2 110 111 struct efi_boot_memmap { 112 efi_memory_desc_t **map; 113 unsigned long *map_size; 114 unsigned long *desc_size; 115 u32 *desc_ver; 116 unsigned long *key_ptr; 117 unsigned long *buff_size; 118 }; 119 120 typedef struct efi_generic_dev_path efi_device_path_protocol_t; 121 122 /* 123 * EFI Boot Services table 124 */ 125 union efi_boot_services { 126 struct { 127 efi_table_hdr_t hdr; 128 void *raise_tpl; 129 void *restore_tpl; 130 efi_status_t (__efiapi *allocate_pages)(int, int, unsigned long, 131 efi_physical_addr_t *); 132 efi_status_t (__efiapi *free_pages)(efi_physical_addr_t, 133 unsigned long); 134 efi_status_t (__efiapi *get_memory_map)(unsigned long *, void *, 135 unsigned long *, 136 unsigned long *, u32 *); 137 efi_status_t (__efiapi *allocate_pool)(int, unsigned long, 138 void **); 139 efi_status_t (__efiapi *free_pool)(void *); 140 void *create_event; 141 void *set_timer; 142 void *wait_for_event; 143 void *signal_event; 144 void *close_event; 145 void *check_event; 146 void *install_protocol_interface; 147 void *reinstall_protocol_interface; 148 void *uninstall_protocol_interface; 149 efi_status_t (__efiapi *handle_protocol)(efi_handle_t, 150 efi_guid_t *, void **); 151 void *__reserved; 152 void *register_protocol_notify; 153 efi_status_t (__efiapi *locate_handle)(int, efi_guid_t *, 154 void *, unsigned long *, 155 efi_handle_t *); 156 efi_status_t (__efiapi *locate_device_path)(efi_guid_t *, 157 efi_device_path_protocol_t **, 158 efi_handle_t *); 159 efi_status_t (__efiapi *install_configuration_table)(efi_guid_t *, 160 void *); 161 void *load_image; 162 void *start_image; 163 efi_status_t __noreturn (__efiapi *exit)(efi_handle_t, 164 efi_status_t, 165 unsigned long, 166 efi_char16_t *); 167 void *unload_image; 168 efi_status_t (__efiapi *exit_boot_services)(efi_handle_t, 169 unsigned long); 170 void *get_next_monotonic_count; 171 void *stall; 172 void *set_watchdog_timer; 173 void *connect_controller; 174 efi_status_t (__efiapi *disconnect_controller)(efi_handle_t, 175 efi_handle_t, 176 efi_handle_t); 177 void *open_protocol; 178 void *close_protocol; 179 void *open_protocol_information; 180 void *protocols_per_handle; 181 void *locate_handle_buffer; 182 efi_status_t (__efiapi *locate_protocol)(efi_guid_t *, void *, 183 void **); 184 void *install_multiple_protocol_interfaces; 185 void *uninstall_multiple_protocol_interfaces; 186 void *calculate_crc32; 187 void *copy_mem; 188 void *set_mem; 189 void *create_event_ex; 190 }; 191 struct { 192 efi_table_hdr_t hdr; 193 u32 raise_tpl; 194 u32 restore_tpl; 195 u32 allocate_pages; 196 u32 free_pages; 197 u32 get_memory_map; 198 u32 allocate_pool; 199 u32 free_pool; 200 u32 create_event; 201 u32 set_timer; 202 u32 wait_for_event; 203 u32 signal_event; 204 u32 close_event; 205 u32 check_event; 206 u32 install_protocol_interface; 207 u32 reinstall_protocol_interface; 208 u32 uninstall_protocol_interface; 209 u32 handle_protocol; 210 u32 __reserved; 211 u32 register_protocol_notify; 212 u32 locate_handle; 213 u32 locate_device_path; 214 u32 install_configuration_table; 215 u32 load_image; 216 u32 start_image; 217 u32 exit; 218 u32 unload_image; 219 u32 exit_boot_services; 220 u32 get_next_monotonic_count; 221 u32 stall; 222 u32 set_watchdog_timer; 223 u32 connect_controller; 224 u32 disconnect_controller; 225 u32 open_protocol; 226 u32 close_protocol; 227 u32 open_protocol_information; 228 u32 protocols_per_handle; 229 u32 locate_handle_buffer; 230 u32 locate_protocol; 231 u32 install_multiple_protocol_interfaces; 232 u32 uninstall_multiple_protocol_interfaces; 233 u32 calculate_crc32; 234 u32 copy_mem; 235 u32 set_mem; 236 u32 create_event_ex; 237 } mixed_mode; 238 }; 239 240 typedef union efi_uga_draw_protocol efi_uga_draw_protocol_t; 241 242 union efi_uga_draw_protocol { 243 struct { 244 efi_status_t (__efiapi *get_mode)(efi_uga_draw_protocol_t *, 245 u32*, u32*, u32*, u32*); 246 void *set_mode; 247 void *blt; 248 }; 249 struct { 250 u32 get_mode; 251 u32 set_mode; 252 u32 blt; 253 } mixed_mode; 254 }; 255 256 union efi_simple_text_output_protocol { 257 struct { 258 void *reset; 259 efi_status_t (__efiapi *output_string)(efi_simple_text_output_protocol_t *, 260 efi_char16_t *); 261 void *test_string; 262 }; 263 struct { 264 u32 reset; 265 u32 output_string; 266 u32 test_string; 267 } mixed_mode; 268 }; 269 270 #define PIXEL_RGB_RESERVED_8BIT_PER_COLOR 0 271 #define PIXEL_BGR_RESERVED_8BIT_PER_COLOR 1 272 #define PIXEL_BIT_MASK 2 273 #define PIXEL_BLT_ONLY 3 274 #define PIXEL_FORMAT_MAX 4 275 276 typedef struct { 277 u32 red_mask; 278 u32 green_mask; 279 u32 blue_mask; 280 u32 reserved_mask; 281 } efi_pixel_bitmask_t; 282 283 typedef struct { 284 u32 version; 285 u32 horizontal_resolution; 286 u32 vertical_resolution; 287 int pixel_format; 288 efi_pixel_bitmask_t pixel_information; 289 u32 pixels_per_scan_line; 290 } efi_graphics_output_mode_info_t; 291 292 typedef union efi_graphics_output_protocol_mode efi_graphics_output_protocol_mode_t; 293 294 union efi_graphics_output_protocol_mode { 295 struct { 296 u32 max_mode; 297 u32 mode; 298 efi_graphics_output_mode_info_t *info; 299 unsigned long size_of_info; 300 efi_physical_addr_t frame_buffer_base; 301 unsigned long frame_buffer_size; 302 }; 303 struct { 304 u32 max_mode; 305 u32 mode; 306 u32 info; 307 u32 size_of_info; 308 u64 frame_buffer_base; 309 u32 frame_buffer_size; 310 } mixed_mode; 311 }; 312 313 typedef union efi_graphics_output_protocol efi_graphics_output_protocol_t; 314 315 union efi_graphics_output_protocol { 316 struct { 317 efi_status_t (__efiapi *query_mode)(efi_graphics_output_protocol_t *, 318 u32, unsigned long *, 319 efi_graphics_output_mode_info_t **); 320 efi_status_t (__efiapi *set_mode) (efi_graphics_output_protocol_t *, u32); 321 void *blt; 322 efi_graphics_output_protocol_mode_t *mode; 323 }; 324 struct { 325 u32 query_mode; 326 u32 set_mode; 327 u32 blt; 328 u32 mode; 329 } mixed_mode; 330 }; 331 332 typedef union { 333 struct { 334 u32 revision; 335 efi_handle_t parent_handle; 336 efi_system_table_t *system_table; 337 efi_handle_t device_handle; 338 void *file_path; 339 void *reserved; 340 u32 load_options_size; 341 void *load_options; 342 void *image_base; 343 __aligned_u64 image_size; 344 unsigned int image_code_type; 345 unsigned int image_data_type; 346 efi_status_t (__efiapi *unload)(efi_handle_t image_handle); 347 }; 348 struct { 349 u32 revision; 350 u32 parent_handle; 351 u32 system_table; 352 u32 device_handle; 353 u32 file_path; 354 u32 reserved; 355 u32 load_options_size; 356 u32 load_options; 357 u32 image_base; 358 __aligned_u64 image_size; 359 u32 image_code_type; 360 u32 image_data_type; 361 u32 unload; 362 } mixed_mode; 363 } efi_loaded_image_t; 364 365 typedef struct { 366 u64 size; 367 u64 file_size; 368 u64 phys_size; 369 efi_time_t create_time; 370 efi_time_t last_access_time; 371 efi_time_t modification_time; 372 __aligned_u64 attribute; 373 efi_char16_t filename[]; 374 } efi_file_info_t; 375 376 typedef struct efi_file_protocol efi_file_protocol_t; 377 378 struct efi_file_protocol { 379 u64 revision; 380 efi_status_t (__efiapi *open) (efi_file_protocol_t *, 381 efi_file_protocol_t **, 382 efi_char16_t *, u64, u64); 383 efi_status_t (__efiapi *close) (efi_file_protocol_t *); 384 efi_status_t (__efiapi *delete) (efi_file_protocol_t *); 385 efi_status_t (__efiapi *read) (efi_file_protocol_t *, 386 unsigned long *, void *); 387 efi_status_t (__efiapi *write) (efi_file_protocol_t *, 388 unsigned long, void *); 389 efi_status_t (__efiapi *get_position)(efi_file_protocol_t *, u64 *); 390 efi_status_t (__efiapi *set_position)(efi_file_protocol_t *, u64); 391 efi_status_t (__efiapi *get_info) (efi_file_protocol_t *, 392 efi_guid_t *, unsigned long *, 393 void *); 394 efi_status_t (__efiapi *set_info) (efi_file_protocol_t *, 395 efi_guid_t *, unsigned long, 396 void *); 397 efi_status_t (__efiapi *flush) (efi_file_protocol_t *); 398 }; 399 400 typedef struct efi_simple_file_system_protocol efi_simple_file_system_protocol_t; 401 402 struct efi_simple_file_system_protocol { 403 u64 revision; 404 int (__efiapi *open_volume)(efi_simple_file_system_protocol_t *, 405 efi_file_protocol_t **); 406 }; 407 408 #define EFI_FILE_MODE_READ 0x0000000000000001 409 #define EFI_FILE_MODE_WRITE 0x0000000000000002 410 #define EFI_FILE_MODE_CREATE 0x8000000000000000 411 412 typedef enum { 413 EfiPciIoWidthUint8, 414 EfiPciIoWidthUint16, 415 EfiPciIoWidthUint32, 416 EfiPciIoWidthUint64, 417 EfiPciIoWidthFifoUint8, 418 EfiPciIoWidthFifoUint16, 419 EfiPciIoWidthFifoUint32, 420 EfiPciIoWidthFifoUint64, 421 EfiPciIoWidthFillUint8, 422 EfiPciIoWidthFillUint16, 423 EfiPciIoWidthFillUint32, 424 EfiPciIoWidthFillUint64, 425 EfiPciIoWidthMaximum 426 } EFI_PCI_IO_PROTOCOL_WIDTH; 427 428 typedef enum { 429 EfiPciIoAttributeOperationGet, 430 EfiPciIoAttributeOperationSet, 431 EfiPciIoAttributeOperationEnable, 432 EfiPciIoAttributeOperationDisable, 433 EfiPciIoAttributeOperationSupported, 434 EfiPciIoAttributeOperationMaximum 435 } EFI_PCI_IO_PROTOCOL_ATTRIBUTE_OPERATION; 436 437 typedef struct { 438 u32 read; 439 u32 write; 440 } efi_pci_io_protocol_access_32_t; 441 442 typedef union efi_pci_io_protocol efi_pci_io_protocol_t; 443 444 typedef 445 efi_status_t (__efiapi *efi_pci_io_protocol_cfg_t)(efi_pci_io_protocol_t *, 446 EFI_PCI_IO_PROTOCOL_WIDTH, 447 u32 offset, 448 unsigned long count, 449 void *buffer); 450 451 typedef struct { 452 void *read; 453 void *write; 454 } efi_pci_io_protocol_access_t; 455 456 typedef struct { 457 efi_pci_io_protocol_cfg_t read; 458 efi_pci_io_protocol_cfg_t write; 459 } efi_pci_io_protocol_config_access_t; 460 461 union efi_pci_io_protocol { 462 struct { 463 void *poll_mem; 464 void *poll_io; 465 efi_pci_io_protocol_access_t mem; 466 efi_pci_io_protocol_access_t io; 467 efi_pci_io_protocol_config_access_t pci; 468 void *copy_mem; 469 void *map; 470 void *unmap; 471 void *allocate_buffer; 472 void *free_buffer; 473 void *flush; 474 efi_status_t (__efiapi *get_location)(efi_pci_io_protocol_t *, 475 unsigned long *segment_nr, 476 unsigned long *bus_nr, 477 unsigned long *device_nr, 478 unsigned long *func_nr); 479 void *attributes; 480 void *get_bar_attributes; 481 void *set_bar_attributes; 482 uint64_t romsize; 483 void *romimage; 484 }; 485 struct { 486 u32 poll_mem; 487 u32 poll_io; 488 efi_pci_io_protocol_access_32_t mem; 489 efi_pci_io_protocol_access_32_t io; 490 efi_pci_io_protocol_access_32_t pci; 491 u32 copy_mem; 492 u32 map; 493 u32 unmap; 494 u32 allocate_buffer; 495 u32 free_buffer; 496 u32 flush; 497 u32 get_location; 498 u32 attributes; 499 u32 get_bar_attributes; 500 u32 set_bar_attributes; 501 u64 romsize; 502 u32 romimage; 503 } mixed_mode; 504 }; 505 506 #define EFI_PCI_IO_ATTRIBUTE_ISA_MOTHERBOARD_IO 0x0001 507 #define EFI_PCI_IO_ATTRIBUTE_ISA_IO 0x0002 508 #define EFI_PCI_IO_ATTRIBUTE_VGA_PALETTE_IO 0x0004 509 #define EFI_PCI_IO_ATTRIBUTE_VGA_MEMORY 0x0008 510 #define EFI_PCI_IO_ATTRIBUTE_VGA_IO 0x0010 511 #define EFI_PCI_IO_ATTRIBUTE_IDE_PRIMARY_IO 0x0020 512 #define EFI_PCI_IO_ATTRIBUTE_IDE_SECONDARY_IO 0x0040 513 #define EFI_PCI_IO_ATTRIBUTE_MEMORY_WRITE_COMBINE 0x0080 514 #define EFI_PCI_IO_ATTRIBUTE_IO 0x0100 515 #define EFI_PCI_IO_ATTRIBUTE_MEMORY 0x0200 516 #define EFI_PCI_IO_ATTRIBUTE_BUS_MASTER 0x0400 517 #define EFI_PCI_IO_ATTRIBUTE_MEMORY_CACHED 0x0800 518 #define EFI_PCI_IO_ATTRIBUTE_MEMORY_DISABLE 0x1000 519 #define EFI_PCI_IO_ATTRIBUTE_EMBEDDED_DEVICE 0x2000 520 #define EFI_PCI_IO_ATTRIBUTE_EMBEDDED_ROM 0x4000 521 #define EFI_PCI_IO_ATTRIBUTE_DUAL_ADDRESS_CYCLE 0x8000 522 #define EFI_PCI_IO_ATTRIBUTE_ISA_IO_16 0x10000 523 #define EFI_PCI_IO_ATTRIBUTE_VGA_PALETTE_IO_16 0x20000 524 #define EFI_PCI_IO_ATTRIBUTE_VGA_IO_16 0x40000 525 526 struct efi_dev_path; 527 528 typedef union apple_properties_protocol apple_properties_protocol_t; 529 530 union apple_properties_protocol { 531 struct { 532 unsigned long version; 533 efi_status_t (__efiapi *get)(apple_properties_protocol_t *, 534 struct efi_dev_path *, 535 efi_char16_t *, void *, u32 *); 536 efi_status_t (__efiapi *set)(apple_properties_protocol_t *, 537 struct efi_dev_path *, 538 efi_char16_t *, void *, u32); 539 efi_status_t (__efiapi *del)(apple_properties_protocol_t *, 540 struct efi_dev_path *, 541 efi_char16_t *); 542 efi_status_t (__efiapi *get_all)(apple_properties_protocol_t *, 543 void *buffer, u32 *); 544 }; 545 struct { 546 u32 version; 547 u32 get; 548 u32 set; 549 u32 del; 550 u32 get_all; 551 } mixed_mode; 552 }; 553 554 typedef u32 efi_tcg2_event_log_format; 555 556 typedef union efi_tcg2_protocol efi_tcg2_protocol_t; 557 558 union efi_tcg2_protocol { 559 struct { 560 void *get_capability; 561 efi_status_t (__efiapi *get_event_log)(efi_handle_t, 562 efi_tcg2_event_log_format, 563 efi_physical_addr_t *, 564 efi_physical_addr_t *, 565 efi_bool_t *); 566 void *hash_log_extend_event; 567 void *submit_command; 568 void *get_active_pcr_banks; 569 void *set_active_pcr_banks; 570 void *get_result_of_set_active_pcr_banks; 571 }; 572 struct { 573 u32 get_capability; 574 u32 get_event_log; 575 u32 hash_log_extend_event; 576 u32 submit_command; 577 u32 get_active_pcr_banks; 578 u32 set_active_pcr_banks; 579 u32 get_result_of_set_active_pcr_banks; 580 } mixed_mode; 581 }; 582 583 typedef union efi_load_file_protocol efi_load_file_protocol_t; 584 typedef union efi_load_file_protocol efi_load_file2_protocol_t; 585 586 union efi_load_file_protocol { 587 struct { 588 efi_status_t (__efiapi *load_file)(efi_load_file_protocol_t *, 589 efi_device_path_protocol_t *, 590 bool, unsigned long *, void *); 591 }; 592 struct { 593 u32 load_file; 594 } mixed_mode; 595 }; 596 597 void efi_pci_disable_bridge_busmaster(void); 598 599 typedef efi_status_t (*efi_exit_boot_map_processing)( 600 struct efi_boot_memmap *map, 601 void *priv); 602 603 efi_status_t efi_exit_boot_services(void *handle, 604 struct efi_boot_memmap *map, 605 void *priv, 606 efi_exit_boot_map_processing priv_func); 607 608 efi_status_t allocate_new_fdt_and_exit_boot(void *handle, 609 unsigned long *new_fdt_addr, 610 unsigned long max_addr, 611 u64 initrd_addr, u64 initrd_size, 612 char *cmdline_ptr, 613 unsigned long fdt_addr, 614 unsigned long fdt_size); 615 616 void *get_fdt(unsigned long *fdt_size); 617 618 void efi_get_virtmap(efi_memory_desc_t *memory_map, unsigned long map_size, 619 unsigned long desc_size, efi_memory_desc_t *runtime_map, 620 int *count); 621 622 efi_status_t efi_get_random_bytes(unsigned long size, u8 *out); 623 624 efi_status_t efi_random_alloc(unsigned long size, unsigned long align, 625 unsigned long *addr, unsigned long random_seed); 626 627 efi_status_t check_platform_features(void); 628 629 void *get_efi_config_table(efi_guid_t guid); 630 631 /* NOTE: These functions do not print a trailing newline after the string */ 632 void efi_char16_puts(efi_char16_t *); 633 void efi_puts(const char *str); 634 635 void efi_free(unsigned long size, unsigned long addr); 636 637 char *efi_convert_cmdline(efi_loaded_image_t *image, int *cmd_line_len, 638 unsigned long max_addr); 639 640 efi_status_t efi_get_memory_map(struct efi_boot_memmap *map); 641 642 efi_status_t efi_allocate_pages(unsigned long size, unsigned long *addr, 643 unsigned long max); 644 645 efi_status_t efi_allocate_pages_aligned(unsigned long size, unsigned long *addr, 646 unsigned long max, unsigned long align); 647 648 efi_status_t efi_relocate_kernel(unsigned long *image_addr, 649 unsigned long image_size, 650 unsigned long alloc_size, 651 unsigned long preferred_addr, 652 unsigned long alignment, 653 unsigned long min_addr); 654 655 efi_status_t efi_parse_options(char const *cmdline); 656 657 void efi_parse_option_graphics(char *option); 658 659 efi_status_t efi_setup_gop(struct screen_info *si, efi_guid_t *proto, 660 unsigned long size); 661 662 efi_status_t handle_cmdline_files(efi_loaded_image_t *image, 663 const efi_char16_t *optstr, 664 int optstr_size, 665 unsigned long soft_limit, 666 unsigned long hard_limit, 667 unsigned long *load_addr, 668 unsigned long *load_size); 669 670 671 static inline efi_status_t efi_load_dtb(efi_loaded_image_t *image, 672 unsigned long *load_addr, 673 unsigned long *load_size) 674 { 675 return handle_cmdline_files(image, L"dtb=", sizeof(L"dtb=") - 2, 676 ULONG_MAX, ULONG_MAX, load_addr, load_size); 677 } 678 679 efi_status_t efi_load_initrd(efi_loaded_image_t *image, 680 unsigned long *load_addr, 681 unsigned long *load_size, 682 unsigned long soft_limit, 683 unsigned long hard_limit); 684 685 #endif 686