1#ifndef _LINUX_EFI_H 2#define _LINUX_EFI_H 3 4/* 5 * Extensible Firmware Interface 6 * Based on 'Extensible Firmware Interface Specification' version 0.9, April 30, 1999 7 * 8 * Copyright (C) 1999 VA Linux Systems 9 * Copyright (C) 1999 Walt Drummond <drummond@valinux.com> 10 * Copyright (C) 1999, 2002-2003 Hewlett-Packard Co. 11 * David Mosberger-Tang <davidm@hpl.hp.com> 12 * Stephane Eranian <eranian@hpl.hp.com> 13 */ 14#include <linux/init.h> 15#include <linux/string.h> 16#include <linux/time.h> 17#include <linux/types.h> 18#include <linux/proc_fs.h> 19#include <linux/rtc.h> 20#include <linux/ioport.h> 21#include <linux/pfn.h> 22#include <linux/pstore.h> 23#include <linux/reboot.h> 24 25#include <asm/page.h> 26 27#define EFI_SUCCESS 0 28#define EFI_LOAD_ERROR ( 1 | (1UL << (BITS_PER_LONG-1))) 29#define EFI_INVALID_PARAMETER ( 2 | (1UL << (BITS_PER_LONG-1))) 30#define EFI_UNSUPPORTED ( 3 | (1UL << (BITS_PER_LONG-1))) 31#define EFI_BAD_BUFFER_SIZE ( 4 | (1UL << (BITS_PER_LONG-1))) 32#define EFI_BUFFER_TOO_SMALL ( 5 | (1UL << (BITS_PER_LONG-1))) 33#define EFI_NOT_READY ( 6 | (1UL << (BITS_PER_LONG-1))) 34#define EFI_DEVICE_ERROR ( 7 | (1UL << (BITS_PER_LONG-1))) 35#define EFI_WRITE_PROTECTED ( 8 | (1UL << (BITS_PER_LONG-1))) 36#define EFI_OUT_OF_RESOURCES ( 9 | (1UL << (BITS_PER_LONG-1))) 37#define EFI_NOT_FOUND (14 | (1UL << (BITS_PER_LONG-1))) 38#define EFI_SECURITY_VIOLATION (26 | (1UL << (BITS_PER_LONG-1))) 39 40typedef unsigned long efi_status_t; 41typedef u8 efi_bool_t; 42typedef u16 efi_char16_t; /* UNICODE character */ 43typedef u64 efi_physical_addr_t; 44typedef void *efi_handle_t; 45 46 47typedef struct { 48 u8 b[16]; 49} efi_guid_t; 50 51#define EFI_GUID(a,b,c,d0,d1,d2,d3,d4,d5,d6,d7) \ 52((efi_guid_t) \ 53{{ (a) & 0xff, ((a) >> 8) & 0xff, ((a) >> 16) & 0xff, ((a) >> 24) & 0xff, \ 54 (b) & 0xff, ((b) >> 8) & 0xff, \ 55 (c) & 0xff, ((c) >> 8) & 0xff, \ 56 (d0), (d1), (d2), (d3), (d4), (d5), (d6), (d7) }}) 57 58/* 59 * Generic EFI table header 60 */ 61typedef struct { 62 u64 signature; 63 u32 revision; 64 u32 headersize; 65 u32 crc32; 66 u32 reserved; 67} efi_table_hdr_t; 68 69/* 70 * Memory map descriptor: 71 */ 72 73/* Memory types: */ 74#define EFI_RESERVED_TYPE 0 75#define EFI_LOADER_CODE 1 76#define EFI_LOADER_DATA 2 77#define EFI_BOOT_SERVICES_CODE 3 78#define EFI_BOOT_SERVICES_DATA 4 79#define EFI_RUNTIME_SERVICES_CODE 5 80#define EFI_RUNTIME_SERVICES_DATA 6 81#define EFI_CONVENTIONAL_MEMORY 7 82#define EFI_UNUSABLE_MEMORY 8 83#define EFI_ACPI_RECLAIM_MEMORY 9 84#define EFI_ACPI_MEMORY_NVS 10 85#define EFI_MEMORY_MAPPED_IO 11 86#define EFI_MEMORY_MAPPED_IO_PORT_SPACE 12 87#define EFI_PAL_CODE 13 88#define EFI_MAX_MEMORY_TYPE 14 89 90/* Attribute values: */ 91#define EFI_MEMORY_UC ((u64)0x0000000000000001ULL) /* uncached */ 92#define EFI_MEMORY_WC ((u64)0x0000000000000002ULL) /* write-coalescing */ 93#define EFI_MEMORY_WT ((u64)0x0000000000000004ULL) /* write-through */ 94#define EFI_MEMORY_WB ((u64)0x0000000000000008ULL) /* write-back */ 95#define EFI_MEMORY_UCE ((u64)0x0000000000000010ULL) /* uncached, exported */ 96#define EFI_MEMORY_WP ((u64)0x0000000000001000ULL) /* write-protect */ 97#define EFI_MEMORY_RP ((u64)0x0000000000002000ULL) /* read-protect */ 98#define EFI_MEMORY_XP ((u64)0x0000000000004000ULL) /* execute-protect */ 99#define EFI_MEMORY_RUNTIME ((u64)0x8000000000000000ULL) /* range requires runtime mapping */ 100#define EFI_MEMORY_DESCRIPTOR_VERSION 1 101 102#define EFI_PAGE_SHIFT 12 103#define EFI_PAGE_SIZE (1UL << EFI_PAGE_SHIFT) 104 105typedef struct { 106 u32 type; 107 u32 pad; 108 u64 phys_addr; 109 u64 virt_addr; 110 u64 num_pages; 111 u64 attribute; 112} efi_memory_desc_t; 113 114typedef struct { 115 efi_guid_t guid; 116 u32 headersize; 117 u32 flags; 118 u32 imagesize; 119} efi_capsule_header_t; 120 121/* 122 * Allocation types for calls to boottime->allocate_pages. 123 */ 124#define EFI_ALLOCATE_ANY_PAGES 0 125#define EFI_ALLOCATE_MAX_ADDRESS 1 126#define EFI_ALLOCATE_ADDRESS 2 127#define EFI_MAX_ALLOCATE_TYPE 3 128 129typedef int (*efi_freemem_callback_t) (u64 start, u64 end, void *arg); 130 131/* 132 * Types and defines for Time Services 133 */ 134#define EFI_TIME_ADJUST_DAYLIGHT 0x1 135#define EFI_TIME_IN_DAYLIGHT 0x2 136#define EFI_UNSPECIFIED_TIMEZONE 0x07ff 137 138typedef struct { 139 u16 year; 140 u8 month; 141 u8 day; 142 u8 hour; 143 u8 minute; 144 u8 second; 145 u8 pad1; 146 u32 nanosecond; 147 s16 timezone; 148 u8 daylight; 149 u8 pad2; 150} efi_time_t; 151 152typedef struct { 153 u32 resolution; 154 u32 accuracy; 155 u8 sets_to_zero; 156} efi_time_cap_t; 157 158typedef struct { 159 efi_table_hdr_t hdr; 160 u32 raise_tpl; 161 u32 restore_tpl; 162 u32 allocate_pages; 163 u32 free_pages; 164 u32 get_memory_map; 165 u32 allocate_pool; 166 u32 free_pool; 167 u32 create_event; 168 u32 set_timer; 169 u32 wait_for_event; 170 u32 signal_event; 171 u32 close_event; 172 u32 check_event; 173 u32 install_protocol_interface; 174 u32 reinstall_protocol_interface; 175 u32 uninstall_protocol_interface; 176 u32 handle_protocol; 177 u32 __reserved; 178 u32 register_protocol_notify; 179 u32 locate_handle; 180 u32 locate_device_path; 181 u32 install_configuration_table; 182 u32 load_image; 183 u32 start_image; 184 u32 exit; 185 u32 unload_image; 186 u32 exit_boot_services; 187 u32 get_next_monotonic_count; 188 u32 stall; 189 u32 set_watchdog_timer; 190 u32 connect_controller; 191 u32 disconnect_controller; 192 u32 open_protocol; 193 u32 close_protocol; 194 u32 open_protocol_information; 195 u32 protocols_per_handle; 196 u32 locate_handle_buffer; 197 u32 locate_protocol; 198 u32 install_multiple_protocol_interfaces; 199 u32 uninstall_multiple_protocol_interfaces; 200 u32 calculate_crc32; 201 u32 copy_mem; 202 u32 set_mem; 203 u32 create_event_ex; 204} __packed efi_boot_services_32_t; 205 206typedef struct { 207 efi_table_hdr_t hdr; 208 u64 raise_tpl; 209 u64 restore_tpl; 210 u64 allocate_pages; 211 u64 free_pages; 212 u64 get_memory_map; 213 u64 allocate_pool; 214 u64 free_pool; 215 u64 create_event; 216 u64 set_timer; 217 u64 wait_for_event; 218 u64 signal_event; 219 u64 close_event; 220 u64 check_event; 221 u64 install_protocol_interface; 222 u64 reinstall_protocol_interface; 223 u64 uninstall_protocol_interface; 224 u64 handle_protocol; 225 u64 __reserved; 226 u64 register_protocol_notify; 227 u64 locate_handle; 228 u64 locate_device_path; 229 u64 install_configuration_table; 230 u64 load_image; 231 u64 start_image; 232 u64 exit; 233 u64 unload_image; 234 u64 exit_boot_services; 235 u64 get_next_monotonic_count; 236 u64 stall; 237 u64 set_watchdog_timer; 238 u64 connect_controller; 239 u64 disconnect_controller; 240 u64 open_protocol; 241 u64 close_protocol; 242 u64 open_protocol_information; 243 u64 protocols_per_handle; 244 u64 locate_handle_buffer; 245 u64 locate_protocol; 246 u64 install_multiple_protocol_interfaces; 247 u64 uninstall_multiple_protocol_interfaces; 248 u64 calculate_crc32; 249 u64 copy_mem; 250 u64 set_mem; 251 u64 create_event_ex; 252} __packed efi_boot_services_64_t; 253 254/* 255 * EFI Boot Services table 256 */ 257typedef struct { 258 efi_table_hdr_t hdr; 259 void *raise_tpl; 260 void *restore_tpl; 261 efi_status_t (*allocate_pages)(int, int, unsigned long, 262 efi_physical_addr_t *); 263 efi_status_t (*free_pages)(efi_physical_addr_t, unsigned long); 264 efi_status_t (*get_memory_map)(unsigned long *, void *, unsigned long *, 265 unsigned long *, u32 *); 266 efi_status_t (*allocate_pool)(int, unsigned long, void **); 267 efi_status_t (*free_pool)(void *); 268 void *create_event; 269 void *set_timer; 270 void *wait_for_event; 271 void *signal_event; 272 void *close_event; 273 void *check_event; 274 void *install_protocol_interface; 275 void *reinstall_protocol_interface; 276 void *uninstall_protocol_interface; 277 efi_status_t (*handle_protocol)(efi_handle_t, efi_guid_t *, void **); 278 void *__reserved; 279 void *register_protocol_notify; 280 void *locate_handle; 281 void *locate_device_path; 282 void *install_configuration_table; 283 void *load_image; 284 void *start_image; 285 void *exit; 286 void *unload_image; 287 efi_status_t (*exit_boot_services)(efi_handle_t, unsigned long); 288 void *get_next_monotonic_count; 289 void *stall; 290 void *set_watchdog_timer; 291 void *connect_controller; 292 void *disconnect_controller; 293 void *open_protocol; 294 void *close_protocol; 295 void *open_protocol_information; 296 void *protocols_per_handle; 297 void *locate_handle_buffer; 298 void *locate_protocol; 299 void *install_multiple_protocol_interfaces; 300 void *uninstall_multiple_protocol_interfaces; 301 void *calculate_crc32; 302 void *copy_mem; 303 void *set_mem; 304 void *create_event_ex; 305} efi_boot_services_t; 306 307typedef enum { 308 EfiPciIoWidthUint8, 309 EfiPciIoWidthUint16, 310 EfiPciIoWidthUint32, 311 EfiPciIoWidthUint64, 312 EfiPciIoWidthFifoUint8, 313 EfiPciIoWidthFifoUint16, 314 EfiPciIoWidthFifoUint32, 315 EfiPciIoWidthFifoUint64, 316 EfiPciIoWidthFillUint8, 317 EfiPciIoWidthFillUint16, 318 EfiPciIoWidthFillUint32, 319 EfiPciIoWidthFillUint64, 320 EfiPciIoWidthMaximum 321} EFI_PCI_IO_PROTOCOL_WIDTH; 322 323typedef enum { 324 EfiPciIoAttributeOperationGet, 325 EfiPciIoAttributeOperationSet, 326 EfiPciIoAttributeOperationEnable, 327 EfiPciIoAttributeOperationDisable, 328 EfiPciIoAttributeOperationSupported, 329 EfiPciIoAttributeOperationMaximum 330} EFI_PCI_IO_PROTOCOL_ATTRIBUTE_OPERATION; 331 332typedef struct { 333 u32 read; 334 u32 write; 335} efi_pci_io_protocol_access_32_t; 336 337typedef struct { 338 u64 read; 339 u64 write; 340} efi_pci_io_protocol_access_64_t; 341 342typedef struct { 343 void *read; 344 void *write; 345} efi_pci_io_protocol_access_t; 346 347typedef struct { 348 u32 poll_mem; 349 u32 poll_io; 350 efi_pci_io_protocol_access_32_t mem; 351 efi_pci_io_protocol_access_32_t io; 352 efi_pci_io_protocol_access_32_t pci; 353 u32 copy_mem; 354 u32 map; 355 u32 unmap; 356 u32 allocate_buffer; 357 u32 free_buffer; 358 u32 flush; 359 u32 get_location; 360 u32 attributes; 361 u32 get_bar_attributes; 362 u32 set_bar_attributes; 363 uint64_t romsize; 364 void *romimage; 365} efi_pci_io_protocol_32; 366 367typedef struct { 368 u64 poll_mem; 369 u64 poll_io; 370 efi_pci_io_protocol_access_64_t mem; 371 efi_pci_io_protocol_access_64_t io; 372 efi_pci_io_protocol_access_64_t pci; 373 u64 copy_mem; 374 u64 map; 375 u64 unmap; 376 u64 allocate_buffer; 377 u64 free_buffer; 378 u64 flush; 379 u64 get_location; 380 u64 attributes; 381 u64 get_bar_attributes; 382 u64 set_bar_attributes; 383 uint64_t romsize; 384 void *romimage; 385} efi_pci_io_protocol_64; 386 387typedef struct { 388 void *poll_mem; 389 void *poll_io; 390 efi_pci_io_protocol_access_t mem; 391 efi_pci_io_protocol_access_t io; 392 efi_pci_io_protocol_access_t pci; 393 void *copy_mem; 394 void *map; 395 void *unmap; 396 void *allocate_buffer; 397 void *free_buffer; 398 void *flush; 399 void *get_location; 400 void *attributes; 401 void *get_bar_attributes; 402 void *set_bar_attributes; 403 uint64_t romsize; 404 void *romimage; 405} efi_pci_io_protocol; 406 407#define EFI_PCI_IO_ATTRIBUTE_ISA_MOTHERBOARD_IO 0x0001 408#define EFI_PCI_IO_ATTRIBUTE_ISA_IO 0x0002 409#define EFI_PCI_IO_ATTRIBUTE_VGA_PALETTE_IO 0x0004 410#define EFI_PCI_IO_ATTRIBUTE_VGA_MEMORY 0x0008 411#define EFI_PCI_IO_ATTRIBUTE_VGA_IO 0x0010 412#define EFI_PCI_IO_ATTRIBUTE_IDE_PRIMARY_IO 0x0020 413#define EFI_PCI_IO_ATTRIBUTE_IDE_SECONDARY_IO 0x0040 414#define EFI_PCI_IO_ATTRIBUTE_MEMORY_WRITE_COMBINE 0x0080 415#define EFI_PCI_IO_ATTRIBUTE_IO 0x0100 416#define EFI_PCI_IO_ATTRIBUTE_MEMORY 0x0200 417#define EFI_PCI_IO_ATTRIBUTE_BUS_MASTER 0x0400 418#define EFI_PCI_IO_ATTRIBUTE_MEMORY_CACHED 0x0800 419#define EFI_PCI_IO_ATTRIBUTE_MEMORY_DISABLE 0x1000 420#define EFI_PCI_IO_ATTRIBUTE_EMBEDDED_DEVICE 0x2000 421#define EFI_PCI_IO_ATTRIBUTE_EMBEDDED_ROM 0x4000 422#define EFI_PCI_IO_ATTRIBUTE_DUAL_ADDRESS_CYCLE 0x8000 423#define EFI_PCI_IO_ATTRIBUTE_ISA_IO_16 0x10000 424#define EFI_PCI_IO_ATTRIBUTE_VGA_PALETTE_IO_16 0x20000 425#define EFI_PCI_IO_ATTRIBUTE_VGA_IO_16 0x40000 426 427/* 428 * Types and defines for EFI ResetSystem 429 */ 430#define EFI_RESET_COLD 0 431#define EFI_RESET_WARM 1 432#define EFI_RESET_SHUTDOWN 2 433 434/* 435 * EFI Runtime Services table 436 */ 437#define EFI_RUNTIME_SERVICES_SIGNATURE ((u64)0x5652453544e5552ULL) 438#define EFI_RUNTIME_SERVICES_REVISION 0x00010000 439 440typedef struct { 441 efi_table_hdr_t hdr; 442 u32 get_time; 443 u32 set_time; 444 u32 get_wakeup_time; 445 u32 set_wakeup_time; 446 u32 set_virtual_address_map; 447 u32 convert_pointer; 448 u32 get_variable; 449 u32 get_next_variable; 450 u32 set_variable; 451 u32 get_next_high_mono_count; 452 u32 reset_system; 453 u32 update_capsule; 454 u32 query_capsule_caps; 455 u32 query_variable_info; 456} efi_runtime_services_32_t; 457 458typedef struct { 459 efi_table_hdr_t hdr; 460 u64 get_time; 461 u64 set_time; 462 u64 get_wakeup_time; 463 u64 set_wakeup_time; 464 u64 set_virtual_address_map; 465 u64 convert_pointer; 466 u64 get_variable; 467 u64 get_next_variable; 468 u64 set_variable; 469 u64 get_next_high_mono_count; 470 u64 reset_system; 471 u64 update_capsule; 472 u64 query_capsule_caps; 473 u64 query_variable_info; 474} efi_runtime_services_64_t; 475 476typedef struct { 477 efi_table_hdr_t hdr; 478 void *get_time; 479 void *set_time; 480 void *get_wakeup_time; 481 void *set_wakeup_time; 482 void *set_virtual_address_map; 483 void *convert_pointer; 484 void *get_variable; 485 void *get_next_variable; 486 void *set_variable; 487 void *get_next_high_mono_count; 488 void *reset_system; 489 void *update_capsule; 490 void *query_capsule_caps; 491 void *query_variable_info; 492} efi_runtime_services_t; 493 494typedef efi_status_t efi_get_time_t (efi_time_t *tm, efi_time_cap_t *tc); 495typedef efi_status_t efi_set_time_t (efi_time_t *tm); 496typedef efi_status_t efi_get_wakeup_time_t (efi_bool_t *enabled, efi_bool_t *pending, 497 efi_time_t *tm); 498typedef efi_status_t efi_set_wakeup_time_t (efi_bool_t enabled, efi_time_t *tm); 499typedef efi_status_t efi_get_variable_t (efi_char16_t *name, efi_guid_t *vendor, u32 *attr, 500 unsigned long *data_size, void *data); 501typedef efi_status_t efi_get_next_variable_t (unsigned long *name_size, efi_char16_t *name, 502 efi_guid_t *vendor); 503typedef efi_status_t efi_set_variable_t (efi_char16_t *name, efi_guid_t *vendor, 504 u32 attr, unsigned long data_size, 505 void *data); 506typedef efi_status_t 507efi_set_variable_nonblocking_t(efi_char16_t *name, efi_guid_t *vendor, 508 u32 attr, unsigned long data_size, void *data); 509 510typedef efi_status_t efi_get_next_high_mono_count_t (u32 *count); 511typedef void efi_reset_system_t (int reset_type, efi_status_t status, 512 unsigned long data_size, efi_char16_t *data); 513typedef efi_status_t efi_set_virtual_address_map_t (unsigned long memory_map_size, 514 unsigned long descriptor_size, 515 u32 descriptor_version, 516 efi_memory_desc_t *virtual_map); 517typedef efi_status_t efi_query_variable_info_t(u32 attr, 518 u64 *storage_space, 519 u64 *remaining_space, 520 u64 *max_variable_size); 521typedef efi_status_t efi_update_capsule_t(efi_capsule_header_t **capsules, 522 unsigned long count, 523 unsigned long sg_list); 524typedef efi_status_t efi_query_capsule_caps_t(efi_capsule_header_t **capsules, 525 unsigned long count, 526 u64 *max_size, 527 int *reset_type); 528typedef efi_status_t efi_query_variable_store_t(u32 attributes, unsigned long size); 529 530void efi_native_runtime_setup(void); 531 532/* 533 * EFI Configuration Table and GUID definitions 534 */ 535#define NULL_GUID \ 536 EFI_GUID( 0x00000000, 0x0000, 0x0000, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 ) 537 538#define MPS_TABLE_GUID \ 539 EFI_GUID( 0xeb9d2d2f, 0x2d88, 0x11d3, 0x9a, 0x16, 0x0, 0x90, 0x27, 0x3f, 0xc1, 0x4d ) 540 541#define ACPI_TABLE_GUID \ 542 EFI_GUID( 0xeb9d2d30, 0x2d88, 0x11d3, 0x9a, 0x16, 0x0, 0x90, 0x27, 0x3f, 0xc1, 0x4d ) 543 544#define ACPI_20_TABLE_GUID \ 545 EFI_GUID( 0x8868e871, 0xe4f1, 0x11d3, 0xbc, 0x22, 0x0, 0x80, 0xc7, 0x3c, 0x88, 0x81 ) 546 547#define SMBIOS_TABLE_GUID \ 548 EFI_GUID( 0xeb9d2d31, 0x2d88, 0x11d3, 0x9a, 0x16, 0x0, 0x90, 0x27, 0x3f, 0xc1, 0x4d ) 549 550#define SMBIOS3_TABLE_GUID \ 551 EFI_GUID( 0xf2fd1544, 0x9794, 0x4a2c, 0x99, 0x2e, 0xe5, 0xbb, 0xcf, 0x20, 0xe3, 0x94 ) 552 553#define SAL_SYSTEM_TABLE_GUID \ 554 EFI_GUID( 0xeb9d2d32, 0x2d88, 0x11d3, 0x9a, 0x16, 0x0, 0x90, 0x27, 0x3f, 0xc1, 0x4d ) 555 556#define HCDP_TABLE_GUID \ 557 EFI_GUID( 0xf951938d, 0x620b, 0x42ef, 0x82, 0x79, 0xa8, 0x4b, 0x79, 0x61, 0x78, 0x98 ) 558 559#define UGA_IO_PROTOCOL_GUID \ 560 EFI_GUID( 0x61a4d49e, 0x6f68, 0x4f1b, 0xb9, 0x22, 0xa8, 0x6e, 0xed, 0xb, 0x7, 0xa2 ) 561 562#define EFI_GLOBAL_VARIABLE_GUID \ 563 EFI_GUID( 0x8be4df61, 0x93ca, 0x11d2, 0xaa, 0x0d, 0x00, 0xe0, 0x98, 0x03, 0x2b, 0x8c ) 564 565#define UV_SYSTEM_TABLE_GUID \ 566 EFI_GUID( 0x3b13a7d4, 0x633e, 0x11dd, 0x93, 0xec, 0xda, 0x25, 0x56, 0xd8, 0x95, 0x93 ) 567 568#define LINUX_EFI_CRASH_GUID \ 569 EFI_GUID( 0xcfc8fc79, 0xbe2e, 0x4ddc, 0x97, 0xf0, 0x9f, 0x98, 0xbf, 0xe2, 0x98, 0xa0 ) 570 571#define LOADED_IMAGE_PROTOCOL_GUID \ 572 EFI_GUID( 0x5b1b31a1, 0x9562, 0x11d2, 0x8e, 0x3f, 0x00, 0xa0, 0xc9, 0x69, 0x72, 0x3b ) 573 574#define EFI_GRAPHICS_OUTPUT_PROTOCOL_GUID \ 575 EFI_GUID( 0x9042a9de, 0x23dc, 0x4a38, 0x96, 0xfb, 0x7a, 0xde, 0xd0, 0x80, 0x51, 0x6a ) 576 577#define EFI_UGA_PROTOCOL_GUID \ 578 EFI_GUID( 0x982c298b, 0xf4fa, 0x41cb, 0xb8, 0x38, 0x77, 0xaa, 0x68, 0x8f, 0xb8, 0x39 ) 579 580#define EFI_PCI_IO_PROTOCOL_GUID \ 581 EFI_GUID( 0x4cf5b200, 0x68b8, 0x4ca5, 0x9e, 0xec, 0xb2, 0x3e, 0x3f, 0x50, 0x2, 0x9a ) 582 583#define EFI_FILE_INFO_ID \ 584 EFI_GUID( 0x9576e92, 0x6d3f, 0x11d2, 0x8e, 0x39, 0x00, 0xa0, 0xc9, 0x69, 0x72, 0x3b ) 585 586#define EFI_FILE_SYSTEM_GUID \ 587 EFI_GUID( 0x964e5b22, 0x6459, 0x11d2, 0x8e, 0x39, 0x00, 0xa0, 0xc9, 0x69, 0x72, 0x3b ) 588 589#define DEVICE_TREE_GUID \ 590 EFI_GUID( 0xb1b621d5, 0xf19c, 0x41a5, 0x83, 0x0b, 0xd9, 0x15, 0x2c, 0x69, 0xaa, 0xe0 ) 591 592typedef struct { 593 efi_guid_t guid; 594 u64 table; 595} efi_config_table_64_t; 596 597typedef struct { 598 efi_guid_t guid; 599 u32 table; 600} efi_config_table_32_t; 601 602typedef struct { 603 efi_guid_t guid; 604 unsigned long table; 605} efi_config_table_t; 606 607typedef struct { 608 efi_guid_t guid; 609 const char *name; 610 unsigned long *ptr; 611} efi_config_table_type_t; 612 613#define EFI_SYSTEM_TABLE_SIGNATURE ((u64)0x5453595320494249ULL) 614 615#define EFI_2_30_SYSTEM_TABLE_REVISION ((2 << 16) | (30)) 616#define EFI_2_20_SYSTEM_TABLE_REVISION ((2 << 16) | (20)) 617#define EFI_2_10_SYSTEM_TABLE_REVISION ((2 << 16) | (10)) 618#define EFI_2_00_SYSTEM_TABLE_REVISION ((2 << 16) | (00)) 619#define EFI_1_10_SYSTEM_TABLE_REVISION ((1 << 16) | (10)) 620#define EFI_1_02_SYSTEM_TABLE_REVISION ((1 << 16) | (02)) 621 622typedef struct { 623 efi_table_hdr_t hdr; 624 u64 fw_vendor; /* physical addr of CHAR16 vendor string */ 625 u32 fw_revision; 626 u32 __pad1; 627 u64 con_in_handle; 628 u64 con_in; 629 u64 con_out_handle; 630 u64 con_out; 631 u64 stderr_handle; 632 u64 stderr; 633 u64 runtime; 634 u64 boottime; 635 u32 nr_tables; 636 u32 __pad2; 637 u64 tables; 638} efi_system_table_64_t; 639 640typedef struct { 641 efi_table_hdr_t hdr; 642 u32 fw_vendor; /* physical addr of CHAR16 vendor string */ 643 u32 fw_revision; 644 u32 con_in_handle; 645 u32 con_in; 646 u32 con_out_handle; 647 u32 con_out; 648 u32 stderr_handle; 649 u32 stderr; 650 u32 runtime; 651 u32 boottime; 652 u32 nr_tables; 653 u32 tables; 654} efi_system_table_32_t; 655 656typedef struct { 657 efi_table_hdr_t hdr; 658 unsigned long fw_vendor; /* physical addr of CHAR16 vendor string */ 659 u32 fw_revision; 660 unsigned long con_in_handle; 661 unsigned long con_in; 662 unsigned long con_out_handle; 663 unsigned long con_out; 664 unsigned long stderr_handle; 665 unsigned long stderr; 666 efi_runtime_services_t *runtime; 667 efi_boot_services_t *boottime; 668 unsigned long nr_tables; 669 unsigned long tables; 670} efi_system_table_t; 671 672struct efi_memory_map { 673 void *phys_map; 674 void *map; 675 void *map_end; 676 int nr_map; 677 unsigned long desc_version; 678 unsigned long desc_size; 679}; 680 681struct efi_fdt_params { 682 u64 system_table; 683 u64 mmap; 684 u32 mmap_size; 685 u32 desc_size; 686 u32 desc_ver; 687}; 688 689typedef struct { 690 u32 revision; 691 u32 parent_handle; 692 u32 system_table; 693 u32 device_handle; 694 u32 file_path; 695 u32 reserved; 696 u32 load_options_size; 697 u32 load_options; 698 u32 image_base; 699 __aligned_u64 image_size; 700 unsigned int image_code_type; 701 unsigned int image_data_type; 702 unsigned long unload; 703} efi_loaded_image_32_t; 704 705typedef struct { 706 u32 revision; 707 u64 parent_handle; 708 u64 system_table; 709 u64 device_handle; 710 u64 file_path; 711 u64 reserved; 712 u32 load_options_size; 713 u64 load_options; 714 u64 image_base; 715 __aligned_u64 image_size; 716 unsigned int image_code_type; 717 unsigned int image_data_type; 718 unsigned long unload; 719} efi_loaded_image_64_t; 720 721typedef struct { 722 u32 revision; 723 void *parent_handle; 724 efi_system_table_t *system_table; 725 void *device_handle; 726 void *file_path; 727 void *reserved; 728 u32 load_options_size; 729 void *load_options; 730 void *image_base; 731 __aligned_u64 image_size; 732 unsigned int image_code_type; 733 unsigned int image_data_type; 734 unsigned long unload; 735} efi_loaded_image_t; 736 737 738typedef struct { 739 u64 size; 740 u64 file_size; 741 u64 phys_size; 742 efi_time_t create_time; 743 efi_time_t last_access_time; 744 efi_time_t modification_time; 745 __aligned_u64 attribute; 746 efi_char16_t filename[1]; 747} efi_file_info_t; 748 749typedef struct { 750 u64 revision; 751 u32 open; 752 u32 close; 753 u32 delete; 754 u32 read; 755 u32 write; 756 u32 get_position; 757 u32 set_position; 758 u32 get_info; 759 u32 set_info; 760 u32 flush; 761} efi_file_handle_32_t; 762 763typedef struct { 764 u64 revision; 765 u64 open; 766 u64 close; 767 u64 delete; 768 u64 read; 769 u64 write; 770 u64 get_position; 771 u64 set_position; 772 u64 get_info; 773 u64 set_info; 774 u64 flush; 775} efi_file_handle_64_t; 776 777typedef struct _efi_file_handle { 778 u64 revision; 779 efi_status_t (*open)(struct _efi_file_handle *, 780 struct _efi_file_handle **, 781 efi_char16_t *, u64, u64); 782 efi_status_t (*close)(struct _efi_file_handle *); 783 void *delete; 784 efi_status_t (*read)(struct _efi_file_handle *, unsigned long *, 785 void *); 786 void *write; 787 void *get_position; 788 void *set_position; 789 efi_status_t (*get_info)(struct _efi_file_handle *, efi_guid_t *, 790 unsigned long *, void *); 791 void *set_info; 792 void *flush; 793} efi_file_handle_t; 794 795typedef struct _efi_file_io_interface { 796 u64 revision; 797 int (*open_volume)(struct _efi_file_io_interface *, 798 efi_file_handle_t **); 799} efi_file_io_interface_t; 800 801#define EFI_FILE_MODE_READ 0x0000000000000001 802#define EFI_FILE_MODE_WRITE 0x0000000000000002 803#define EFI_FILE_MODE_CREATE 0x8000000000000000 804 805#define EFI_INVALID_TABLE_ADDR (~0UL) 806 807/* 808 * All runtime access to EFI goes through this structure: 809 */ 810extern struct efi { 811 efi_system_table_t *systab; /* EFI system table */ 812 unsigned int runtime_version; /* Runtime services version */ 813 unsigned long mps; /* MPS table */ 814 unsigned long acpi; /* ACPI table (IA64 ext 0.71) */ 815 unsigned long acpi20; /* ACPI table (ACPI 2.0) */ 816 unsigned long smbios; /* SMBIOS table (32 bit entry point) */ 817 unsigned long smbios3; /* SMBIOS table (64 bit entry point) */ 818 unsigned long sal_systab; /* SAL system table */ 819 unsigned long boot_info; /* boot info table */ 820 unsigned long hcdp; /* HCDP table */ 821 unsigned long uga; /* UGA table */ 822 unsigned long uv_systab; /* UV system table */ 823 unsigned long fw_vendor; /* fw_vendor */ 824 unsigned long runtime; /* runtime table */ 825 unsigned long config_table; /* config tables */ 826 efi_get_time_t *get_time; 827 efi_set_time_t *set_time; 828 efi_get_wakeup_time_t *get_wakeup_time; 829 efi_set_wakeup_time_t *set_wakeup_time; 830 efi_get_variable_t *get_variable; 831 efi_get_next_variable_t *get_next_variable; 832 efi_set_variable_t *set_variable; 833 efi_set_variable_nonblocking_t *set_variable_nonblocking; 834 efi_query_variable_info_t *query_variable_info; 835 efi_update_capsule_t *update_capsule; 836 efi_query_capsule_caps_t *query_capsule_caps; 837 efi_get_next_high_mono_count_t *get_next_high_mono_count; 838 efi_reset_system_t *reset_system; 839 efi_set_virtual_address_map_t *set_virtual_address_map; 840 struct efi_memory_map *memmap; 841 unsigned long flags; 842} efi; 843 844static inline int 845efi_guidcmp (efi_guid_t left, efi_guid_t right) 846{ 847 return memcmp(&left, &right, sizeof (efi_guid_t)); 848} 849 850static inline char * 851efi_guid_to_str(efi_guid_t *guid, char *out) 852{ 853 sprintf(out, "%pUl", guid->b); 854 return out; 855} 856 857extern void efi_init (void); 858extern void *efi_get_pal_addr (void); 859extern void efi_map_pal_code (void); 860extern void efi_memmap_walk (efi_freemem_callback_t callback, void *arg); 861extern void efi_gettimeofday (struct timespec *ts); 862extern void efi_enter_virtual_mode (void); /* switch EFI to virtual mode, if possible */ 863#ifdef CONFIG_X86 864extern void efi_late_init(void); 865extern void efi_free_boot_services(void); 866extern efi_status_t efi_query_variable_store(u32 attributes, unsigned long size); 867#else 868static inline void efi_late_init(void) {} 869static inline void efi_free_boot_services(void) {} 870 871static inline efi_status_t efi_query_variable_store(u32 attributes, unsigned long size) 872{ 873 return EFI_SUCCESS; 874} 875#endif 876extern void __iomem *efi_lookup_mapped_addr(u64 phys_addr); 877extern int efi_config_init(efi_config_table_type_t *arch_tables); 878extern int efi_config_parse_tables(void *config_tables, int count, int sz, 879 efi_config_table_type_t *arch_tables); 880extern u64 efi_get_iobase (void); 881extern u32 efi_mem_type (unsigned long phys_addr); 882extern u64 efi_mem_attributes (unsigned long phys_addr); 883extern u64 efi_mem_attribute (unsigned long phys_addr, unsigned long size); 884extern int __init efi_uart_console_only (void); 885extern void efi_initialize_iomem_resources(struct resource *code_resource, 886 struct resource *data_resource, struct resource *bss_resource); 887extern void efi_get_time(struct timespec *now); 888extern void efi_reserve_boot_services(void); 889extern int efi_get_fdt_params(struct efi_fdt_params *params, int verbose); 890extern struct efi_memory_map memmap; 891 892extern int efi_reboot_quirk_mode; 893extern bool efi_poweroff_required(void); 894 895/* Iterate through an efi_memory_map */ 896#define for_each_efi_memory_desc(m, md) \ 897 for ((md) = (m)->map; \ 898 (md) <= (efi_memory_desc_t *)((m)->map_end - (m)->desc_size); \ 899 (md) = (void *)(md) + (m)->desc_size) 900 901/* 902 * Format an EFI memory descriptor's type and attributes to a user-provided 903 * character buffer, as per snprintf(), and return the buffer. 904 */ 905char * __init efi_md_typeattr_format(char *buf, size_t size, 906 const efi_memory_desc_t *md); 907 908/** 909 * efi_range_is_wc - check the WC bit on an address range 910 * @start: starting kvirt address 911 * @len: length of range 912 * 913 * Consult the EFI memory map and make sure it's ok to set this range WC. 914 * Returns true or false. 915 */ 916static inline int efi_range_is_wc(unsigned long start, unsigned long len) 917{ 918 unsigned long i; 919 920 for (i = 0; i < len; i += (1UL << EFI_PAGE_SHIFT)) { 921 unsigned long paddr = __pa(start + i); 922 if (!(efi_mem_attributes(paddr) & EFI_MEMORY_WC)) 923 return 0; 924 } 925 /* The range checked out */ 926 return 1; 927} 928 929#ifdef CONFIG_EFI_PCDP 930extern int __init efi_setup_pcdp_console(char *); 931#endif 932 933/* 934 * We play games with efi_enabled so that the compiler will, if 935 * possible, remove EFI-related code altogether. 936 */ 937#define EFI_BOOT 0 /* Were we booted from EFI? */ 938#define EFI_SYSTEM_TABLES 1 /* Can we use EFI system tables? */ 939#define EFI_CONFIG_TABLES 2 /* Can we use EFI config tables? */ 940#define EFI_RUNTIME_SERVICES 3 /* Can we use runtime services? */ 941#define EFI_MEMMAP 4 /* Can we use EFI memory map? */ 942#define EFI_64BIT 5 /* Is the firmware 64-bit? */ 943#define EFI_PARAVIRT 6 /* Access is via a paravirt interface */ 944#define EFI_ARCH_1 7 /* First arch-specific bit */ 945#define EFI_DBG 8 /* Print additional debug info at runtime */ 946 947#ifdef CONFIG_EFI 948/* 949 * Test whether the above EFI_* bits are enabled. 950 */ 951static inline bool efi_enabled(int feature) 952{ 953 return test_bit(feature, &efi.flags) != 0; 954} 955extern void efi_reboot(enum reboot_mode reboot_mode, const char *__unused); 956#else 957static inline bool efi_enabled(int feature) 958{ 959 return false; 960} 961static inline void 962efi_reboot(enum reboot_mode reboot_mode, const char *__unused) {} 963#endif 964 965/* 966 * Variable Attributes 967 */ 968#define EFI_VARIABLE_NON_VOLATILE 0x0000000000000001 969#define EFI_VARIABLE_BOOTSERVICE_ACCESS 0x0000000000000002 970#define EFI_VARIABLE_RUNTIME_ACCESS 0x0000000000000004 971#define EFI_VARIABLE_HARDWARE_ERROR_RECORD 0x0000000000000008 972#define EFI_VARIABLE_AUTHENTICATED_WRITE_ACCESS 0x0000000000000010 973#define EFI_VARIABLE_TIME_BASED_AUTHENTICATED_WRITE_ACCESS 0x0000000000000020 974#define EFI_VARIABLE_APPEND_WRITE 0x0000000000000040 975 976#define EFI_VARIABLE_MASK (EFI_VARIABLE_NON_VOLATILE | \ 977 EFI_VARIABLE_BOOTSERVICE_ACCESS | \ 978 EFI_VARIABLE_RUNTIME_ACCESS | \ 979 EFI_VARIABLE_HARDWARE_ERROR_RECORD | \ 980 EFI_VARIABLE_AUTHENTICATED_WRITE_ACCESS | \ 981 EFI_VARIABLE_TIME_BASED_AUTHENTICATED_WRITE_ACCESS | \ 982 EFI_VARIABLE_APPEND_WRITE) 983/* 984 * Length of a GUID string (strlen("aaaaaaaa-bbbb-cccc-dddd-eeeeeeeeeeee")) 985 * not including trailing NUL 986 */ 987#define EFI_VARIABLE_GUID_LEN 36 988 989/* 990 * The type of search to perform when calling boottime->locate_handle 991 */ 992#define EFI_LOCATE_ALL_HANDLES 0 993#define EFI_LOCATE_BY_REGISTER_NOTIFY 1 994#define EFI_LOCATE_BY_PROTOCOL 2 995 996/* 997 * EFI Device Path information 998 */ 999#define EFI_DEV_HW 0x01 1000#define EFI_DEV_PCI 1 1001#define EFI_DEV_PCCARD 2 1002#define EFI_DEV_MEM_MAPPED 3 1003#define EFI_DEV_VENDOR 4 1004#define EFI_DEV_CONTROLLER 5 1005#define EFI_DEV_ACPI 0x02 1006#define EFI_DEV_BASIC_ACPI 1 1007#define EFI_DEV_EXPANDED_ACPI 2 1008#define EFI_DEV_MSG 0x03 1009#define EFI_DEV_MSG_ATAPI 1 1010#define EFI_DEV_MSG_SCSI 2 1011#define EFI_DEV_MSG_FC 3 1012#define EFI_DEV_MSG_1394 4 1013#define EFI_DEV_MSG_USB 5 1014#define EFI_DEV_MSG_USB_CLASS 15 1015#define EFI_DEV_MSG_I20 6 1016#define EFI_DEV_MSG_MAC 11 1017#define EFI_DEV_MSG_IPV4 12 1018#define EFI_DEV_MSG_IPV6 13 1019#define EFI_DEV_MSG_INFINIBAND 9 1020#define EFI_DEV_MSG_UART 14 1021#define EFI_DEV_MSG_VENDOR 10 1022#define EFI_DEV_MEDIA 0x04 1023#define EFI_DEV_MEDIA_HARD_DRIVE 1 1024#define EFI_DEV_MEDIA_CDROM 2 1025#define EFI_DEV_MEDIA_VENDOR 3 1026#define EFI_DEV_MEDIA_FILE 4 1027#define EFI_DEV_MEDIA_PROTOCOL 5 1028#define EFI_DEV_BIOS_BOOT 0x05 1029#define EFI_DEV_END_PATH 0x7F 1030#define EFI_DEV_END_PATH2 0xFF 1031#define EFI_DEV_END_INSTANCE 0x01 1032#define EFI_DEV_END_ENTIRE 0xFF 1033 1034struct efi_generic_dev_path { 1035 u8 type; 1036 u8 sub_type; 1037 u16 length; 1038} __attribute ((packed)); 1039 1040static inline void memrange_efi_to_native(u64 *addr, u64 *npages) 1041{ 1042 *npages = PFN_UP(*addr + (*npages<<EFI_PAGE_SHIFT)) - PFN_DOWN(*addr); 1043 *addr &= PAGE_MASK; 1044} 1045 1046/* 1047 * EFI Variable support. 1048 * 1049 * Different firmware drivers can expose their EFI-like variables using 1050 * the following. 1051 */ 1052 1053struct efivar_operations { 1054 efi_get_variable_t *get_variable; 1055 efi_get_next_variable_t *get_next_variable; 1056 efi_set_variable_t *set_variable; 1057 efi_set_variable_nonblocking_t *set_variable_nonblocking; 1058 efi_query_variable_store_t *query_variable_store; 1059}; 1060 1061struct efivars { 1062 /* 1063 * ->lock protects two things: 1064 * 1) efivarfs_list and efivars_sysfs_list 1065 * 2) ->ops calls 1066 */ 1067 spinlock_t lock; 1068 struct kset *kset; 1069 struct kobject *kobject; 1070 const struct efivar_operations *ops; 1071}; 1072 1073/* 1074 * The maximum size of VariableName + Data = 1024 1075 * Therefore, it's reasonable to save that much 1076 * space in each part of the structure, 1077 * and we use a page for reading/writing. 1078 */ 1079 1080#define EFI_VAR_NAME_LEN 1024 1081 1082struct efi_variable { 1083 efi_char16_t VariableName[EFI_VAR_NAME_LEN/sizeof(efi_char16_t)]; 1084 efi_guid_t VendorGuid; 1085 unsigned long DataSize; 1086 __u8 Data[1024]; 1087 efi_status_t Status; 1088 __u32 Attributes; 1089} __attribute__((packed)); 1090 1091struct efivar_entry { 1092 struct efi_variable var; 1093 struct list_head list; 1094 struct kobject kobj; 1095 bool scanning; 1096 bool deleting; 1097}; 1098 1099struct efi_simple_text_output_protocol_32 { 1100 u32 reset; 1101 u32 output_string; 1102 u32 test_string; 1103}; 1104 1105struct efi_simple_text_output_protocol_64 { 1106 u64 reset; 1107 u64 output_string; 1108 u64 test_string; 1109}; 1110 1111struct efi_simple_text_output_protocol { 1112 void *reset; 1113 efi_status_t (*output_string)(void *, void *); 1114 void *test_string; 1115}; 1116 1117extern struct list_head efivar_sysfs_list; 1118 1119static inline void 1120efivar_unregister(struct efivar_entry *var) 1121{ 1122 kobject_put(&var->kobj); 1123} 1124 1125int efivars_register(struct efivars *efivars, 1126 const struct efivar_operations *ops, 1127 struct kobject *kobject); 1128int efivars_unregister(struct efivars *efivars); 1129struct kobject *efivars_kobject(void); 1130 1131int efivar_init(int (*func)(efi_char16_t *, efi_guid_t, unsigned long, void *), 1132 void *data, bool atomic, bool duplicates, 1133 struct list_head *head); 1134 1135void efivar_entry_add(struct efivar_entry *entry, struct list_head *head); 1136void efivar_entry_remove(struct efivar_entry *entry); 1137 1138int __efivar_entry_delete(struct efivar_entry *entry); 1139int efivar_entry_delete(struct efivar_entry *entry); 1140 1141int efivar_entry_size(struct efivar_entry *entry, unsigned long *size); 1142int __efivar_entry_get(struct efivar_entry *entry, u32 *attributes, 1143 unsigned long *size, void *data); 1144int efivar_entry_get(struct efivar_entry *entry, u32 *attributes, 1145 unsigned long *size, void *data); 1146int efivar_entry_set(struct efivar_entry *entry, u32 attributes, 1147 unsigned long size, void *data, struct list_head *head); 1148int efivar_entry_set_get_size(struct efivar_entry *entry, u32 attributes, 1149 unsigned long *size, void *data, bool *set); 1150int efivar_entry_set_safe(efi_char16_t *name, efi_guid_t vendor, u32 attributes, 1151 bool block, unsigned long size, void *data); 1152 1153void efivar_entry_iter_begin(void); 1154void efivar_entry_iter_end(void); 1155 1156int __efivar_entry_iter(int (*func)(struct efivar_entry *, void *), 1157 struct list_head *head, void *data, 1158 struct efivar_entry **prev); 1159int efivar_entry_iter(int (*func)(struct efivar_entry *, void *), 1160 struct list_head *head, void *data); 1161 1162struct efivar_entry *efivar_entry_find(efi_char16_t *name, efi_guid_t guid, 1163 struct list_head *head, bool remove); 1164 1165bool efivar_validate(efi_guid_t vendor, efi_char16_t *var_name, u8 *data, 1166 unsigned long data_size); 1167bool efivar_variable_is_removable(efi_guid_t vendor, const char *name, 1168 size_t len); 1169 1170extern struct work_struct efivar_work; 1171void efivar_run_worker(void); 1172 1173#if defined(CONFIG_EFI_VARS) || defined(CONFIG_EFI_VARS_MODULE) 1174int efivars_sysfs_init(void); 1175 1176#define EFIVARS_DATA_SIZE_MAX 1024 1177 1178#endif /* CONFIG_EFI_VARS */ 1179 1180#ifdef CONFIG_EFI_RUNTIME_MAP 1181int efi_runtime_map_init(struct kobject *); 1182void efi_runtime_map_setup(void *, int, u32); 1183int efi_get_runtime_map_size(void); 1184int efi_get_runtime_map_desc_size(void); 1185int efi_runtime_map_copy(void *buf, size_t bufsz); 1186#else 1187static inline int efi_runtime_map_init(struct kobject *kobj) 1188{ 1189 return 0; 1190} 1191 1192static inline void 1193efi_runtime_map_setup(void *map, int nr_entries, u32 desc_size) {} 1194 1195static inline int efi_get_runtime_map_size(void) 1196{ 1197 return 0; 1198} 1199 1200static inline int efi_get_runtime_map_desc_size(void) 1201{ 1202 return 0; 1203} 1204 1205static inline int efi_runtime_map_copy(void *buf, size_t bufsz) 1206{ 1207 return 0; 1208} 1209 1210#endif 1211 1212/* prototypes shared between arch specific and generic stub code */ 1213 1214#define pr_efi(sys_table, msg) efi_printk(sys_table, "EFI stub: "msg) 1215#define pr_efi_err(sys_table, msg) efi_printk(sys_table, "EFI stub: ERROR: "msg) 1216 1217void efi_printk(efi_system_table_t *sys_table_arg, char *str); 1218 1219void efi_free(efi_system_table_t *sys_table_arg, unsigned long size, 1220 unsigned long addr); 1221 1222char *efi_convert_cmdline(efi_system_table_t *sys_table_arg, 1223 efi_loaded_image_t *image, int *cmd_line_len); 1224 1225efi_status_t efi_get_memory_map(efi_system_table_t *sys_table_arg, 1226 efi_memory_desc_t **map, 1227 unsigned long *map_size, 1228 unsigned long *desc_size, 1229 u32 *desc_ver, 1230 unsigned long *key_ptr); 1231 1232efi_status_t efi_low_alloc(efi_system_table_t *sys_table_arg, 1233 unsigned long size, unsigned long align, 1234 unsigned long *addr); 1235 1236efi_status_t efi_high_alloc(efi_system_table_t *sys_table_arg, 1237 unsigned long size, unsigned long align, 1238 unsigned long *addr, unsigned long max); 1239 1240efi_status_t efi_relocate_kernel(efi_system_table_t *sys_table_arg, 1241 unsigned long *image_addr, 1242 unsigned long image_size, 1243 unsigned long alloc_size, 1244 unsigned long preferred_addr, 1245 unsigned long alignment); 1246 1247efi_status_t handle_cmdline_files(efi_system_table_t *sys_table_arg, 1248 efi_loaded_image_t *image, 1249 char *cmd_line, char *option_string, 1250 unsigned long max_addr, 1251 unsigned long *load_addr, 1252 unsigned long *load_size); 1253 1254efi_status_t efi_parse_options(char *cmdline); 1255 1256bool efi_runtime_disabled(void); 1257#endif /* _LINUX_EFI_H */ 1258