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 <[email protected]> 10 * Copyright (C) 1999, 2002-2003 Hewlett-Packard Co. 11 * David Mosberger-Tang <[email protected]> 12 * Stephane Eranian <[email protected]> 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 40 typedef unsigned long efi_status_t; 41 typedef u8 efi_bool_t; 42 typedef u16 efi_char16_t; /* UNICODE character */ 43 typedef u64 efi_physical_addr_t; 44 typedef void *efi_handle_t; 45 46 47 typedef 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 */ 61 typedef 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) 104 105 typedef 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; 113 114 typedef 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 3 128 129 typedef 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 137 138 typedef 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; 151 152 typedef struct { 153 u32 resolution; 154 u32 accuracy; 155 u8 sets_to_zero; 156 } efi_time_cap_t; 157 158 typedef 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; 205 206 typedef 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 */ 257 typedef 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; 306 307 typedef 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; 322 323 typedef enum { 324 EfiPciIoAttributeOperationGet, 325 EfiPciIoAttributeOperationSet, 326 EfiPciIoAttributeOperationEnable, 327 EfiPciIoAttributeOperationDisable, 328 EfiPciIoAttributeOperationSupported, 329 EfiPciIoAttributeOperationMaximum 330 } EFI_PCI_IO_PROTOCOL_ATTRIBUTE_OPERATION; 331 332 typedef struct { 333 u32 read; 334 u32 write; 335 } efi_pci_io_protocol_access_32_t; 336 337 typedef struct { 338 u64 read; 339 u64 write; 340 } efi_pci_io_protocol_access_64_t; 341 342 typedef struct { 343 void *read; 344 void *write; 345 } efi_pci_io_protocol_access_t; 346 347 typedef 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; 366 367 typedef 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; 386 387 typedef 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 439 440 typedef 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; 457 458 typedef 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; 475 476 typedef 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; 493 494 typedef efi_status_t efi_get_time_t (efi_time_t *tm, efi_time_cap_t *tc); 495 typedef efi_status_t efi_set_time_t (efi_time_t *tm); 496 typedef efi_status_t efi_get_wakeup_time_t (efi_bool_t *enabled, efi_bool_t *pending, 497 efi_time_t *tm); 498 typedef efi_status_t efi_set_wakeup_time_t (efi_bool_t enabled, efi_time_t *tm); 499 typedef efi_status_t efi_get_variable_t (efi_char16_t *name, efi_guid_t *vendor, u32 *attr, 500 unsigned long *data_size, void *data); 501 typedef efi_status_t efi_get_next_variable_t (unsigned long *name_size, efi_char16_t *name, 502 efi_guid_t *vendor); 503 typedef 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); 506 typedef efi_status_t 507 efi_set_variable_nonblocking_t(efi_char16_t *name, efi_guid_t *vendor, 508 u32 attr, unsigned long data_size, void *data); 509 510 typedef efi_status_t efi_get_next_high_mono_count_t (u32 *count); 511 typedef void efi_reset_system_t (int reset_type, efi_status_t status, 512 unsigned long data_size, efi_char16_t *data); 513 typedef 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); 517 typedef efi_status_t efi_query_variable_info_t(u32 attr, 518 u64 *storage_space, 519 u64 *remaining_space, 520 u64 *max_variable_size); 521 typedef efi_status_t efi_update_capsule_t(efi_capsule_header_t **capsules, 522 unsigned long count, 523 unsigned long sg_list); 524 typedef 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); 528 typedef efi_status_t efi_query_variable_store_t(u32 attributes, unsigned long size); 529 530 void 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 ) 591 592 typedef struct { 593 efi_guid_t guid; 594 u64 table; 595 } efi_config_table_64_t; 596 597 typedef struct { 598 efi_guid_t guid; 599 u32 table; 600 } efi_config_table_32_t; 601 602 typedef struct { 603 efi_guid_t guid; 604 unsigned long table; 605 } efi_config_table_t; 606 607 typedef 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)) 621 622 typedef 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; 639 640 typedef 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; 655 656 typedef 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; 671 672 struct 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 }; 680 681 struct efi_fdt_params { 682 u64 system_table; 683 u64 mmap; 684 u32 mmap_size; 685 u32 desc_size; 686 u32 desc_ver; 687 }; 688 689 typedef 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; 704 705 typedef 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; 720 721 typedef 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; 736 737 738 typedef 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; 748 749 typedef 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; 762 763 typedef 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; 776 777 typedef 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; 794 795 typedef 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 */ 810 extern 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; 843 844 static inline int 845 efi_guidcmp (efi_guid_t left, efi_guid_t right) 846 { 847 return memcmp(&left, &right, sizeof (efi_guid_t)); 848 } 849 850 static inline char * 851 efi_guid_to_str(efi_guid_t *guid, char *out) 852 { 853 sprintf(out, "%pUl", guid->b); 854 return out; 855 } 856 857 extern void efi_init (void); 858 extern void *efi_get_pal_addr (void); 859 extern void efi_map_pal_code (void); 860 extern void efi_memmap_walk (efi_freemem_callback_t callback, void *arg); 861 extern void efi_gettimeofday (struct timespec *ts); 862 extern void efi_enter_virtual_mode (void); /* switch EFI to virtual mode, if possible */ 863 #ifdef CONFIG_X86 864 extern void efi_late_init(void); 865 extern void efi_free_boot_services(void); 866 extern efi_status_t efi_query_variable_store(u32 attributes, unsigned long size); 867 #else 868 static inline void efi_late_init(void) {} 869 static inline void efi_free_boot_services(void) {} 870 871 static inline efi_status_t efi_query_variable_store(u32 attributes, unsigned long size) 872 { 873 return EFI_SUCCESS; 874 } 875 #endif 876 extern void __iomem *efi_lookup_mapped_addr(u64 phys_addr); 877 extern int efi_config_init(efi_config_table_type_t *arch_tables); 878 extern int efi_config_parse_tables(void *config_tables, int count, int sz, 879 efi_config_table_type_t *arch_tables); 880 extern u64 efi_get_iobase (void); 881 extern u32 efi_mem_type (unsigned long phys_addr); 882 extern u64 efi_mem_attributes (unsigned long phys_addr); 883 extern u64 efi_mem_attribute (unsigned long phys_addr, unsigned long size); 884 extern int __init efi_uart_console_only (void); 885 extern void efi_initialize_iomem_resources(struct resource *code_resource, 886 struct resource *data_resource, struct resource *bss_resource); 887 extern void efi_get_time(struct timespec *now); 888 extern void efi_reserve_boot_services(void); 889 extern int efi_get_fdt_params(struct efi_fdt_params *params, int verbose); 890 extern struct efi_memory_map memmap; 891 892 extern int efi_reboot_quirk_mode; 893 extern 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 */ 905 char * __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 */ 916 static 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 930 extern 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 */ 945 946 #ifdef CONFIG_EFI 947 /* 948 * Test whether the above EFI_* bits are enabled. 949 */ 950 static inline bool efi_enabled(int feature) 951 { 952 return test_bit(feature, &efi.flags) != 0; 953 } 954 extern void efi_reboot(enum reboot_mode reboot_mode, const char *__unused); 955 #else 956 static inline bool efi_enabled(int feature) 957 { 958 return false; 959 } 960 static inline void 961 efi_reboot(enum reboot_mode reboot_mode, const char *__unused) {} 962 #endif 963 964 /* 965 * Variable Attributes 966 */ 967 #define EFI_VARIABLE_NON_VOLATILE 0x0000000000000001 968 #define EFI_VARIABLE_BOOTSERVICE_ACCESS 0x0000000000000002 969 #define EFI_VARIABLE_RUNTIME_ACCESS 0x0000000000000004 970 #define EFI_VARIABLE_HARDWARE_ERROR_RECORD 0x0000000000000008 971 #define EFI_VARIABLE_AUTHENTICATED_WRITE_ACCESS 0x0000000000000010 972 #define EFI_VARIABLE_TIME_BASED_AUTHENTICATED_WRITE_ACCESS 0x0000000000000020 973 #define EFI_VARIABLE_APPEND_WRITE 0x0000000000000040 974 975 #define EFI_VARIABLE_MASK (EFI_VARIABLE_NON_VOLATILE | \ 976 EFI_VARIABLE_BOOTSERVICE_ACCESS | \ 977 EFI_VARIABLE_RUNTIME_ACCESS | \ 978 EFI_VARIABLE_HARDWARE_ERROR_RECORD | \ 979 EFI_VARIABLE_AUTHENTICATED_WRITE_ACCESS | \ 980 EFI_VARIABLE_TIME_BASED_AUTHENTICATED_WRITE_ACCESS | \ 981 EFI_VARIABLE_APPEND_WRITE) 982 /* 983 * Length of a GUID string (strlen("aaaaaaaa-bbbb-cccc-dddd-eeeeeeeeeeee")) 984 * not including trailing NUL 985 */ 986 #define EFI_VARIABLE_GUID_LEN 36 987 988 /* 989 * The type of search to perform when calling boottime->locate_handle 990 */ 991 #define EFI_LOCATE_ALL_HANDLES 0 992 #define EFI_LOCATE_BY_REGISTER_NOTIFY 1 993 #define EFI_LOCATE_BY_PROTOCOL 2 994 995 /* 996 * EFI Device Path information 997 */ 998 #define EFI_DEV_HW 0x01 999 #define EFI_DEV_PCI 1 1000 #define EFI_DEV_PCCARD 2 1001 #define EFI_DEV_MEM_MAPPED 3 1002 #define EFI_DEV_VENDOR 4 1003 #define EFI_DEV_CONTROLLER 5 1004 #define EFI_DEV_ACPI 0x02 1005 #define EFI_DEV_BASIC_ACPI 1 1006 #define EFI_DEV_EXPANDED_ACPI 2 1007 #define EFI_DEV_MSG 0x03 1008 #define EFI_DEV_MSG_ATAPI 1 1009 #define EFI_DEV_MSG_SCSI 2 1010 #define EFI_DEV_MSG_FC 3 1011 #define EFI_DEV_MSG_1394 4 1012 #define EFI_DEV_MSG_USB 5 1013 #define EFI_DEV_MSG_USB_CLASS 15 1014 #define EFI_DEV_MSG_I20 6 1015 #define EFI_DEV_MSG_MAC 11 1016 #define EFI_DEV_MSG_IPV4 12 1017 #define EFI_DEV_MSG_IPV6 13 1018 #define EFI_DEV_MSG_INFINIBAND 9 1019 #define EFI_DEV_MSG_UART 14 1020 #define EFI_DEV_MSG_VENDOR 10 1021 #define EFI_DEV_MEDIA 0x04 1022 #define EFI_DEV_MEDIA_HARD_DRIVE 1 1023 #define EFI_DEV_MEDIA_CDROM 2 1024 #define EFI_DEV_MEDIA_VENDOR 3 1025 #define EFI_DEV_MEDIA_FILE 4 1026 #define EFI_DEV_MEDIA_PROTOCOL 5 1027 #define EFI_DEV_BIOS_BOOT 0x05 1028 #define EFI_DEV_END_PATH 0x7F 1029 #define EFI_DEV_END_PATH2 0xFF 1030 #define EFI_DEV_END_INSTANCE 0x01 1031 #define EFI_DEV_END_ENTIRE 0xFF 1032 1033 struct efi_generic_dev_path { 1034 u8 type; 1035 u8 sub_type; 1036 u16 length; 1037 } __attribute ((packed)); 1038 1039 static inline void memrange_efi_to_native(u64 *addr, u64 *npages) 1040 { 1041 *npages = PFN_UP(*addr + (*npages<<EFI_PAGE_SHIFT)) - PFN_DOWN(*addr); 1042 *addr &= PAGE_MASK; 1043 } 1044 1045 /* 1046 * EFI Variable support. 1047 * 1048 * Different firmware drivers can expose their EFI-like variables using 1049 * the following. 1050 */ 1051 1052 struct efivar_operations { 1053 efi_get_variable_t *get_variable; 1054 efi_get_next_variable_t *get_next_variable; 1055 efi_set_variable_t *set_variable; 1056 efi_set_variable_nonblocking_t *set_variable_nonblocking; 1057 efi_query_variable_store_t *query_variable_store; 1058 }; 1059 1060 struct efivars { 1061 /* 1062 * ->lock protects two things: 1063 * 1) efivarfs_list and efivars_sysfs_list 1064 * 2) ->ops calls 1065 */ 1066 spinlock_t lock; 1067 struct kset *kset; 1068 struct kobject *kobject; 1069 const struct efivar_operations *ops; 1070 }; 1071 1072 /* 1073 * The maximum size of VariableName + Data = 1024 1074 * Therefore, it's reasonable to save that much 1075 * space in each part of the structure, 1076 * and we use a page for reading/writing. 1077 */ 1078 1079 #define EFI_VAR_NAME_LEN 1024 1080 1081 struct efi_variable { 1082 efi_char16_t VariableName[EFI_VAR_NAME_LEN/sizeof(efi_char16_t)]; 1083 efi_guid_t VendorGuid; 1084 unsigned long DataSize; 1085 __u8 Data[1024]; 1086 efi_status_t Status; 1087 __u32 Attributes; 1088 } __attribute__((packed)); 1089 1090 struct efivar_entry { 1091 struct efi_variable var; 1092 struct list_head list; 1093 struct kobject kobj; 1094 bool scanning; 1095 bool deleting; 1096 }; 1097 1098 struct efi_simple_text_output_protocol_32 { 1099 u32 reset; 1100 u32 output_string; 1101 u32 test_string; 1102 }; 1103 1104 struct efi_simple_text_output_protocol_64 { 1105 u64 reset; 1106 u64 output_string; 1107 u64 test_string; 1108 }; 1109 1110 struct efi_simple_text_output_protocol { 1111 void *reset; 1112 efi_status_t (*output_string)(void *, void *); 1113 void *test_string; 1114 }; 1115 1116 extern struct list_head efivar_sysfs_list; 1117 1118 static inline void 1119 efivar_unregister(struct efivar_entry *var) 1120 { 1121 kobject_put(&var->kobj); 1122 } 1123 1124 int efivars_register(struct efivars *efivars, 1125 const struct efivar_operations *ops, 1126 struct kobject *kobject); 1127 int efivars_unregister(struct efivars *efivars); 1128 struct kobject *efivars_kobject(void); 1129 1130 int efivar_init(int (*func)(efi_char16_t *, efi_guid_t, unsigned long, void *), 1131 void *data, bool atomic, bool duplicates, 1132 struct list_head *head); 1133 1134 void efivar_entry_add(struct efivar_entry *entry, struct list_head *head); 1135 void efivar_entry_remove(struct efivar_entry *entry); 1136 1137 int __efivar_entry_delete(struct efivar_entry *entry); 1138 int efivar_entry_delete(struct efivar_entry *entry); 1139 1140 int efivar_entry_size(struct efivar_entry *entry, unsigned long *size); 1141 int __efivar_entry_get(struct efivar_entry *entry, u32 *attributes, 1142 unsigned long *size, void *data); 1143 int efivar_entry_get(struct efivar_entry *entry, u32 *attributes, 1144 unsigned long *size, void *data); 1145 int efivar_entry_set(struct efivar_entry *entry, u32 attributes, 1146 unsigned long size, void *data, struct list_head *head); 1147 int efivar_entry_set_get_size(struct efivar_entry *entry, u32 attributes, 1148 unsigned long *size, void *data, bool *set); 1149 int efivar_entry_set_safe(efi_char16_t *name, efi_guid_t vendor, u32 attributes, 1150 bool block, unsigned long size, void *data); 1151 1152 void efivar_entry_iter_begin(void); 1153 void efivar_entry_iter_end(void); 1154 1155 int __efivar_entry_iter(int (*func)(struct efivar_entry *, void *), 1156 struct list_head *head, void *data, 1157 struct efivar_entry **prev); 1158 int efivar_entry_iter(int (*func)(struct efivar_entry *, void *), 1159 struct list_head *head, void *data); 1160 1161 struct efivar_entry *efivar_entry_find(efi_char16_t *name, efi_guid_t guid, 1162 struct list_head *head, bool remove); 1163 1164 bool efivar_validate(efi_char16_t *var_name, u8 *data, unsigned long len); 1165 1166 extern struct work_struct efivar_work; 1167 void efivar_run_worker(void); 1168 1169 #if defined(CONFIG_EFI_VARS) || defined(CONFIG_EFI_VARS_MODULE) 1170 int efivars_sysfs_init(void); 1171 1172 #define EFIVARS_DATA_SIZE_MAX 1024 1173 1174 #endif /* CONFIG_EFI_VARS */ 1175 1176 #ifdef CONFIG_EFI_RUNTIME_MAP 1177 int efi_runtime_map_init(struct kobject *); 1178 void efi_runtime_map_setup(void *, int, u32); 1179 int efi_get_runtime_map_size(void); 1180 int efi_get_runtime_map_desc_size(void); 1181 int efi_runtime_map_copy(void *buf, size_t bufsz); 1182 #else 1183 static inline int efi_runtime_map_init(struct kobject *kobj) 1184 { 1185 return 0; 1186 } 1187 1188 static inline void 1189 efi_runtime_map_setup(void *map, int nr_entries, u32 desc_size) {} 1190 1191 static inline int efi_get_runtime_map_size(void) 1192 { 1193 return 0; 1194 } 1195 1196 static inline int efi_get_runtime_map_desc_size(void) 1197 { 1198 return 0; 1199 } 1200 1201 static inline int efi_runtime_map_copy(void *buf, size_t bufsz) 1202 { 1203 return 0; 1204 } 1205 1206 #endif 1207 1208 /* prototypes shared between arch specific and generic stub code */ 1209 1210 #define pr_efi(sys_table, msg) efi_printk(sys_table, "EFI stub: "msg) 1211 #define pr_efi_err(sys_table, msg) efi_printk(sys_table, "EFI stub: ERROR: "msg) 1212 1213 void efi_printk(efi_system_table_t *sys_table_arg, char *str); 1214 1215 void efi_free(efi_system_table_t *sys_table_arg, unsigned long size, 1216 unsigned long addr); 1217 1218 char *efi_convert_cmdline(efi_system_table_t *sys_table_arg, 1219 efi_loaded_image_t *image, int *cmd_line_len); 1220 1221 efi_status_t efi_get_memory_map(efi_system_table_t *sys_table_arg, 1222 efi_memory_desc_t **map, 1223 unsigned long *map_size, 1224 unsigned long *desc_size, 1225 u32 *desc_ver, 1226 unsigned long *key_ptr); 1227 1228 efi_status_t efi_low_alloc(efi_system_table_t *sys_table_arg, 1229 unsigned long size, unsigned long align, 1230 unsigned long *addr); 1231 1232 efi_status_t efi_high_alloc(efi_system_table_t *sys_table_arg, 1233 unsigned long size, unsigned long align, 1234 unsigned long *addr, unsigned long max); 1235 1236 efi_status_t efi_relocate_kernel(efi_system_table_t *sys_table_arg, 1237 unsigned long *image_addr, 1238 unsigned long image_size, 1239 unsigned long alloc_size, 1240 unsigned long preferred_addr, 1241 unsigned long alignment); 1242 1243 efi_status_t handle_cmdline_files(efi_system_table_t *sys_table_arg, 1244 efi_loaded_image_t *image, 1245 char *cmd_line, char *option_string, 1246 unsigned long max_addr, 1247 unsigned long *load_addr, 1248 unsigned long *load_size); 1249 1250 efi_status_t efi_parse_options(char *cmdline); 1251 1252 bool efi_runtime_disabled(void); 1253 #endif /* _LINUX_EFI_H */ 1254