| 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 | |
| 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_PERSISTENT_MEMORY 14 |
| 89 | #define EFI_MAX_MEMORY_TYPE 15 |
| 90 | |
| 91 | /* Attribute values: */ |
| 92 | #define EFI_MEMORY_UC ((u64)0x0000000000000001ULL) /* uncached */ |
| 93 | #define EFI_MEMORY_WC ((u64)0x0000000000000002ULL) /* write-coalescing */ |
| 94 | #define EFI_MEMORY_WT ((u64)0x0000000000000004ULL) /* write-through */ |
| 95 | #define EFI_MEMORY_WB ((u64)0x0000000000000008ULL) /* write-back */ |
| 96 | #define EFI_MEMORY_UCE ((u64)0x0000000000000010ULL) /* uncached, exported */ |
| 97 | #define EFI_MEMORY_WP ((u64)0x0000000000001000ULL) /* write-protect */ |
| 98 | #define EFI_MEMORY_RP ((u64)0x0000000000002000ULL) /* read-protect */ |
| 99 | #define EFI_MEMORY_XP ((u64)0x0000000000004000ULL) /* execute-protect */ |
| 100 | #define EFI_MEMORY_NV ((u64)0x0000000000008000ULL) /* non-volatile */ |
| 101 | #define EFI_MEMORY_MORE_RELIABLE \ |
| 102 | ((u64)0x0000000000010000ULL) /* higher reliability */ |
| 103 | #define EFI_MEMORY_RO ((u64)0x0000000000020000ULL) /* read-only */ |
| 104 | #define EFI_MEMORY_RUNTIME ((u64)0x8000000000000000ULL) /* range requires runtime mapping */ |
| 105 | #define EFI_MEMORY_DESCRIPTOR_VERSION 1 |
| 106 | |
| 107 | #define EFI_PAGE_SHIFT 12 |
| 108 | #define EFI_PAGE_SIZE (1UL << EFI_PAGE_SHIFT) |
| 109 | |
| 110 | typedef struct { |
| 111 | u32 type; |
| 112 | u32 pad; |
| 113 | u64 phys_addr; |
| 114 | u64 virt_addr; |
| 115 | u64 num_pages; |
| 116 | u64 attribute; |
| 117 | } efi_memory_desc_t; |
| 118 | |
| 119 | typedef struct { |
| 120 | efi_guid_t guid; |
| 121 | u32 headersize; |
| 122 | u32 flags; |
| 123 | u32 imagesize; |
| 124 | } efi_capsule_header_t; |
| 125 | |
| 126 | /* |
| 127 | * Allocation types for calls to boottime->allocate_pages. |
| 128 | */ |
| 129 | #define EFI_ALLOCATE_ANY_PAGES 0 |
| 130 | #define EFI_ALLOCATE_MAX_ADDRESS 1 |
| 131 | #define EFI_ALLOCATE_ADDRESS 2 |
| 132 | #define EFI_MAX_ALLOCATE_TYPE 3 |
| 133 | |
| 134 | typedef int (*efi_freemem_callback_t) (u64 start, u64 end, void *arg); |
| 135 | |
| 136 | /* |
| 137 | * Types and defines for Time Services |
| 138 | */ |
| 139 | #define EFI_TIME_ADJUST_DAYLIGHT 0x1 |
| 140 | #define EFI_TIME_IN_DAYLIGHT 0x2 |
| 141 | #define EFI_UNSPECIFIED_TIMEZONE 0x07ff |
| 142 | |
| 143 | typedef struct { |
| 144 | u16 year; |
| 145 | u8 month; |
| 146 | u8 day; |
| 147 | u8 hour; |
| 148 | u8 minute; |
| 149 | u8 second; |
| 150 | u8 pad1; |
| 151 | u32 nanosecond; |
| 152 | s16 timezone; |
| 153 | u8 daylight; |
| 154 | u8 pad2; |
| 155 | } efi_time_t; |
| 156 | |
| 157 | typedef struct { |
| 158 | u32 resolution; |
| 159 | u32 accuracy; |
| 160 | u8 sets_to_zero; |
| 161 | } efi_time_cap_t; |
| 162 | |
| 163 | typedef struct { |
| 164 | efi_table_hdr_t hdr; |
| 165 | u32 raise_tpl; |
| 166 | u32 restore_tpl; |
| 167 | u32 allocate_pages; |
| 168 | u32 free_pages; |
| 169 | u32 get_memory_map; |
| 170 | u32 allocate_pool; |
| 171 | u32 free_pool; |
| 172 | u32 create_event; |
| 173 | u32 set_timer; |
| 174 | u32 wait_for_event; |
| 175 | u32 signal_event; |
| 176 | u32 close_event; |
| 177 | u32 check_event; |
| 178 | u32 install_protocol_interface; |
| 179 | u32 reinstall_protocol_interface; |
| 180 | u32 uninstall_protocol_interface; |
| 181 | u32 handle_protocol; |
| 182 | u32 __reserved; |
| 183 | u32 register_protocol_notify; |
| 184 | u32 locate_handle; |
| 185 | u32 locate_device_path; |
| 186 | u32 install_configuration_table; |
| 187 | u32 load_image; |
| 188 | u32 start_image; |
| 189 | u32 exit; |
| 190 | u32 unload_image; |
| 191 | u32 exit_boot_services; |
| 192 | u32 get_next_monotonic_count; |
| 193 | u32 stall; |
| 194 | u32 set_watchdog_timer; |
| 195 | u32 connect_controller; |
| 196 | u32 disconnect_controller; |
| 197 | u32 open_protocol; |
| 198 | u32 close_protocol; |
| 199 | u32 open_protocol_information; |
| 200 | u32 protocols_per_handle; |
| 201 | u32 locate_handle_buffer; |
| 202 | u32 locate_protocol; |
| 203 | u32 install_multiple_protocol_interfaces; |
| 204 | u32 uninstall_multiple_protocol_interfaces; |
| 205 | u32 calculate_crc32; |
| 206 | u32 copy_mem; |
| 207 | u32 set_mem; |
| 208 | u32 create_event_ex; |
| 209 | } __packed efi_boot_services_32_t; |
| 210 | |
| 211 | typedef struct { |
| 212 | efi_table_hdr_t hdr; |
| 213 | u64 raise_tpl; |
| 214 | u64 restore_tpl; |
| 215 | u64 allocate_pages; |
| 216 | u64 free_pages; |
| 217 | u64 get_memory_map; |
| 218 | u64 allocate_pool; |
| 219 | u64 free_pool; |
| 220 | u64 create_event; |
| 221 | u64 set_timer; |
| 222 | u64 wait_for_event; |
| 223 | u64 signal_event; |
| 224 | u64 close_event; |
| 225 | u64 check_event; |
| 226 | u64 install_protocol_interface; |
| 227 | u64 reinstall_protocol_interface; |
| 228 | u64 uninstall_protocol_interface; |
| 229 | u64 handle_protocol; |
| 230 | u64 __reserved; |
| 231 | u64 register_protocol_notify; |
| 232 | u64 locate_handle; |
| 233 | u64 locate_device_path; |
| 234 | u64 install_configuration_table; |
| 235 | u64 load_image; |
| 236 | u64 start_image; |
| 237 | u64 exit; |
| 238 | u64 unload_image; |
| 239 | u64 exit_boot_services; |
| 240 | u64 get_next_monotonic_count; |
| 241 | u64 stall; |
| 242 | u64 set_watchdog_timer; |
| 243 | u64 connect_controller; |
| 244 | u64 disconnect_controller; |
| 245 | u64 open_protocol; |
| 246 | u64 close_protocol; |
| 247 | u64 open_protocol_information; |
| 248 | u64 protocols_per_handle; |
| 249 | u64 locate_handle_buffer; |
| 250 | u64 locate_protocol; |
| 251 | u64 install_multiple_protocol_interfaces; |
| 252 | u64 uninstall_multiple_protocol_interfaces; |
| 253 | u64 calculate_crc32; |
| 254 | u64 copy_mem; |
| 255 | u64 set_mem; |
| 256 | u64 create_event_ex; |
| 257 | } __packed efi_boot_services_64_t; |
| 258 | |
| 259 | /* |
| 260 | * EFI Boot Services table |
| 261 | */ |
| 262 | typedef struct { |
| 263 | efi_table_hdr_t hdr; |
| 264 | void *raise_tpl; |
| 265 | void *restore_tpl; |
| 266 | efi_status_t (*allocate_pages)(int, int, unsigned long, |
| 267 | efi_physical_addr_t *); |
| 268 | efi_status_t (*free_pages)(efi_physical_addr_t, unsigned long); |
| 269 | efi_status_t (*get_memory_map)(unsigned long *, void *, unsigned long *, |
| 270 | unsigned long *, u32 *); |
| 271 | efi_status_t (*allocate_pool)(int, unsigned long, void **); |
| 272 | efi_status_t (*free_pool)(void *); |
| 273 | void *create_event; |
| 274 | void *set_timer; |
| 275 | void *wait_for_event; |
| 276 | void *signal_event; |
| 277 | void *close_event; |
| 278 | void *check_event; |
| 279 | void *install_protocol_interface; |
| 280 | void *reinstall_protocol_interface; |
| 281 | void *uninstall_protocol_interface; |
| 282 | efi_status_t (*handle_protocol)(efi_handle_t, efi_guid_t *, void **); |
| 283 | void *__reserved; |
| 284 | void *register_protocol_notify; |
| 285 | void *locate_handle; |
| 286 | void *locate_device_path; |
| 287 | void *install_configuration_table; |
| 288 | void *load_image; |
| 289 | void *start_image; |
| 290 | void *exit; |
| 291 | void *unload_image; |
| 292 | efi_status_t (*exit_boot_services)(efi_handle_t, unsigned long); |
| 293 | void *get_next_monotonic_count; |
| 294 | void *stall; |
| 295 | void *set_watchdog_timer; |
| 296 | void *connect_controller; |
| 297 | void *disconnect_controller; |
| 298 | void *open_protocol; |
| 299 | void *close_protocol; |
| 300 | void *open_protocol_information; |
| 301 | void *protocols_per_handle; |
| 302 | void *locate_handle_buffer; |
| 303 | efi_status_t (*locate_protocol)(efi_guid_t *, void *, void **); |
| 304 | void *install_multiple_protocol_interfaces; |
| 305 | void *uninstall_multiple_protocol_interfaces; |
| 306 | void *calculate_crc32; |
| 307 | void *copy_mem; |
| 308 | void *set_mem; |
| 309 | void *create_event_ex; |
| 310 | } efi_boot_services_t; |
| 311 | |
| 312 | typedef enum { |
| 313 | EfiPciIoWidthUint8, |
| 314 | EfiPciIoWidthUint16, |
| 315 | EfiPciIoWidthUint32, |
| 316 | EfiPciIoWidthUint64, |
| 317 | EfiPciIoWidthFifoUint8, |
| 318 | EfiPciIoWidthFifoUint16, |
| 319 | EfiPciIoWidthFifoUint32, |
| 320 | EfiPciIoWidthFifoUint64, |
| 321 | EfiPciIoWidthFillUint8, |
| 322 | EfiPciIoWidthFillUint16, |
| 323 | EfiPciIoWidthFillUint32, |
| 324 | EfiPciIoWidthFillUint64, |
| 325 | EfiPciIoWidthMaximum |
| 326 | } EFI_PCI_IO_PROTOCOL_WIDTH; |
| 327 | |
| 328 | typedef enum { |
| 329 | EfiPciIoAttributeOperationGet, |
| 330 | EfiPciIoAttributeOperationSet, |
| 331 | EfiPciIoAttributeOperationEnable, |
| 332 | EfiPciIoAttributeOperationDisable, |
| 333 | EfiPciIoAttributeOperationSupported, |
| 334 | EfiPciIoAttributeOperationMaximum |
| 335 | } EFI_PCI_IO_PROTOCOL_ATTRIBUTE_OPERATION; |
| 336 | |
| 337 | typedef struct { |
| 338 | u32 read; |
| 339 | u32 write; |
| 340 | } efi_pci_io_protocol_access_32_t; |
| 341 | |
| 342 | typedef struct { |
| 343 | u64 read; |
| 344 | u64 write; |
| 345 | } efi_pci_io_protocol_access_64_t; |
| 346 | |
| 347 | typedef struct { |
| 348 | void *read; |
| 349 | void *write; |
| 350 | } efi_pci_io_protocol_access_t; |
| 351 | |
| 352 | typedef struct { |
| 353 | u32 poll_mem; |
| 354 | u32 poll_io; |
| 355 | efi_pci_io_protocol_access_32_t mem; |
| 356 | efi_pci_io_protocol_access_32_t io; |
| 357 | efi_pci_io_protocol_access_32_t pci; |
| 358 | u32 copy_mem; |
| 359 | u32 map; |
| 360 | u32 unmap; |
| 361 | u32 allocate_buffer; |
| 362 | u32 free_buffer; |
| 363 | u32 flush; |
| 364 | u32 get_location; |
| 365 | u32 attributes; |
| 366 | u32 get_bar_attributes; |
| 367 | u32 set_bar_attributes; |
| 368 | uint64_t romsize; |
| 369 | void *romimage; |
| 370 | } efi_pci_io_protocol_32; |
| 371 | |
| 372 | typedef struct { |
| 373 | u64 poll_mem; |
| 374 | u64 poll_io; |
| 375 | efi_pci_io_protocol_access_64_t mem; |
| 376 | efi_pci_io_protocol_access_64_t io; |
| 377 | efi_pci_io_protocol_access_64_t pci; |
| 378 | u64 copy_mem; |
| 379 | u64 map; |
| 380 | u64 unmap; |
| 381 | u64 allocate_buffer; |
| 382 | u64 free_buffer; |
| 383 | u64 flush; |
| 384 | u64 get_location; |
| 385 | u64 attributes; |
| 386 | u64 get_bar_attributes; |
| 387 | u64 set_bar_attributes; |
| 388 | uint64_t romsize; |
| 389 | void *romimage; |
| 390 | } efi_pci_io_protocol_64; |
| 391 | |
| 392 | typedef struct { |
| 393 | void *poll_mem; |
| 394 | void *poll_io; |
| 395 | efi_pci_io_protocol_access_t mem; |
| 396 | efi_pci_io_protocol_access_t io; |
| 397 | efi_pci_io_protocol_access_t pci; |
| 398 | void *copy_mem; |
| 399 | void *map; |
| 400 | void *unmap; |
| 401 | void *allocate_buffer; |
| 402 | void *free_buffer; |
| 403 | void *flush; |
| 404 | void *get_location; |
| 405 | void *attributes; |
| 406 | void *get_bar_attributes; |
| 407 | void *set_bar_attributes; |
| 408 | uint64_t romsize; |
| 409 | void *romimage; |
| 410 | } efi_pci_io_protocol; |
| 411 | |
| 412 | #define EFI_PCI_IO_ATTRIBUTE_ISA_MOTHERBOARD_IO 0x0001 |
| 413 | #define EFI_PCI_IO_ATTRIBUTE_ISA_IO 0x0002 |
| 414 | #define EFI_PCI_IO_ATTRIBUTE_VGA_PALETTE_IO 0x0004 |
| 415 | #define EFI_PCI_IO_ATTRIBUTE_VGA_MEMORY 0x0008 |
| 416 | #define EFI_PCI_IO_ATTRIBUTE_VGA_IO 0x0010 |
| 417 | #define EFI_PCI_IO_ATTRIBUTE_IDE_PRIMARY_IO 0x0020 |
| 418 | #define EFI_PCI_IO_ATTRIBUTE_IDE_SECONDARY_IO 0x0040 |
| 419 | #define EFI_PCI_IO_ATTRIBUTE_MEMORY_WRITE_COMBINE 0x0080 |
| 420 | #define EFI_PCI_IO_ATTRIBUTE_IO 0x0100 |
| 421 | #define EFI_PCI_IO_ATTRIBUTE_MEMORY 0x0200 |
| 422 | #define EFI_PCI_IO_ATTRIBUTE_BUS_MASTER 0x0400 |
| 423 | #define EFI_PCI_IO_ATTRIBUTE_MEMORY_CACHED 0x0800 |
| 424 | #define EFI_PCI_IO_ATTRIBUTE_MEMORY_DISABLE 0x1000 |
| 425 | #define EFI_PCI_IO_ATTRIBUTE_EMBEDDED_DEVICE 0x2000 |
| 426 | #define EFI_PCI_IO_ATTRIBUTE_EMBEDDED_ROM 0x4000 |
| 427 | #define EFI_PCI_IO_ATTRIBUTE_DUAL_ADDRESS_CYCLE 0x8000 |
| 428 | #define EFI_PCI_IO_ATTRIBUTE_ISA_IO_16 0x10000 |
| 429 | #define EFI_PCI_IO_ATTRIBUTE_VGA_PALETTE_IO_16 0x20000 |
| 430 | #define EFI_PCI_IO_ATTRIBUTE_VGA_IO_16 0x40000 |
| 431 | |
| 432 | /* |
| 433 | * Types and defines for EFI ResetSystem |
| 434 | */ |
| 435 | #define EFI_RESET_COLD 0 |
| 436 | #define EFI_RESET_WARM 1 |
| 437 | #define EFI_RESET_SHUTDOWN 2 |
| 438 | |
| 439 | /* |
| 440 | * EFI Runtime Services table |
| 441 | */ |
| 442 | #define EFI_RUNTIME_SERVICES_SIGNATURE ((u64)0x5652453544e5552ULL) |
| 443 | #define EFI_RUNTIME_SERVICES_REVISION 0x00010000 |
| 444 | |
| 445 | typedef struct { |
| 446 | efi_table_hdr_t hdr; |
| 447 | u32 get_time; |
| 448 | u32 set_time; |
| 449 | u32 get_wakeup_time; |
| 450 | u32 set_wakeup_time; |
| 451 | u32 set_virtual_address_map; |
| 452 | u32 convert_pointer; |
| 453 | u32 get_variable; |
| 454 | u32 get_next_variable; |
| 455 | u32 set_variable; |
| 456 | u32 get_next_high_mono_count; |
| 457 | u32 reset_system; |
| 458 | u32 update_capsule; |
| 459 | u32 query_capsule_caps; |
| 460 | u32 query_variable_info; |
| 461 | } efi_runtime_services_32_t; |
| 462 | |
| 463 | typedef struct { |
| 464 | efi_table_hdr_t hdr; |
| 465 | u64 get_time; |
| 466 | u64 set_time; |
| 467 | u64 get_wakeup_time; |
| 468 | u64 set_wakeup_time; |
| 469 | u64 set_virtual_address_map; |
| 470 | u64 convert_pointer; |
| 471 | u64 get_variable; |
| 472 | u64 get_next_variable; |
| 473 | u64 set_variable; |
| 474 | u64 get_next_high_mono_count; |
| 475 | u64 reset_system; |
| 476 | u64 update_capsule; |
| 477 | u64 query_capsule_caps; |
| 478 | u64 query_variable_info; |
| 479 | } efi_runtime_services_64_t; |
| 480 | |
| 481 | typedef struct { |
| 482 | efi_table_hdr_t hdr; |
| 483 | void *get_time; |
| 484 | void *set_time; |
| 485 | void *get_wakeup_time; |
| 486 | void *set_wakeup_time; |
| 487 | void *set_virtual_address_map; |
| 488 | void *convert_pointer; |
| 489 | void *get_variable; |
| 490 | void *get_next_variable; |
| 491 | void *set_variable; |
| 492 | void *get_next_high_mono_count; |
| 493 | void *reset_system; |
| 494 | void *update_capsule; |
| 495 | void *query_capsule_caps; |
| 496 | void *query_variable_info; |
| 497 | } efi_runtime_services_t; |
| 498 | |
| 499 | typedef efi_status_t efi_get_time_t (efi_time_t *tm, efi_time_cap_t *tc); |
| 500 | typedef efi_status_t efi_set_time_t (efi_time_t *tm); |
| 501 | typedef efi_status_t efi_get_wakeup_time_t (efi_bool_t *enabled, efi_bool_t *pending, |
| 502 | efi_time_t *tm); |
| 503 | typedef efi_status_t efi_set_wakeup_time_t (efi_bool_t enabled, efi_time_t *tm); |
| 504 | typedef efi_status_t efi_get_variable_t (efi_char16_t *name, efi_guid_t *vendor, u32 *attr, |
| 505 | unsigned long *data_size, void *data); |
| 506 | typedef efi_status_t efi_get_next_variable_t (unsigned long *name_size, efi_char16_t *name, |
| 507 | efi_guid_t *vendor); |
| 508 | typedef efi_status_t efi_set_variable_t (efi_char16_t *name, efi_guid_t *vendor, |
| 509 | u32 attr, unsigned long data_size, |
| 510 | void *data); |
| 511 | typedef efi_status_t efi_get_next_high_mono_count_t (u32 *count); |
| 512 | typedef void efi_reset_system_t (int reset_type, efi_status_t status, |
| 513 | unsigned long data_size, efi_char16_t *data); |
| 514 | typedef efi_status_t efi_set_virtual_address_map_t (unsigned long memory_map_size, |
| 515 | unsigned long descriptor_size, |
| 516 | u32 descriptor_version, |
| 517 | efi_memory_desc_t *virtual_map); |
| 518 | typedef efi_status_t efi_query_variable_info_t(u32 attr, |
| 519 | u64 *storage_space, |
| 520 | u64 *remaining_space, |
| 521 | u64 *max_variable_size); |
| 522 | typedef efi_status_t efi_update_capsule_t(efi_capsule_header_t **capsules, |
| 523 | unsigned long count, |
| 524 | unsigned long sg_list); |
| 525 | typedef efi_status_t efi_query_capsule_caps_t(efi_capsule_header_t **capsules, |
| 526 | unsigned long count, |
| 527 | u64 *max_size, |
| 528 | int *reset_type); |
| 529 | typedef efi_status_t efi_query_variable_store_t(u32 attributes, |
| 530 | unsigned long size, |
| 531 | bool nonblocking); |
| 532 | |
| 533 | void efi_native_runtime_setup(void); |
| 534 | |
| 535 | /* |
| 536 | * EFI Configuration Table and GUID definitions |
| 537 | */ |
| 538 | #define NULL_GUID \ |
| 539 | EFI_GUID(0x00000000, 0x0000, 0x0000, \ |
| 540 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00) |
| 541 | |
| 542 | #define MPS_TABLE_GUID \ |
| 543 | EFI_GUID(0xeb9d2d2f, 0x2d88, 0x11d3, \ |
| 544 | 0x9a, 0x16, 0x00, 0x90, 0x27, 0x3f, 0xc1, 0x4d) |
| 545 | |
| 546 | #define ACPI_TABLE_GUID \ |
| 547 | EFI_GUID(0xeb9d2d30, 0x2d88, 0x11d3, \ |
| 548 | 0x9a, 0x16, 0x00, 0x90, 0x27, 0x3f, 0xc1, 0x4d) |
| 549 | |
| 550 | #define ACPI_20_TABLE_GUID \ |
| 551 | EFI_GUID(0x8868e871, 0xe4f1, 0x11d3, \ |
| 552 | 0xbc, 0x22, 0x00, 0x80, 0xc7, 0x3c, 0x88, 0x81) |
| 553 | |
| 554 | #define SMBIOS_TABLE_GUID \ |
| 555 | EFI_GUID(0xeb9d2d31, 0x2d88, 0x11d3, \ |
| 556 | 0x9a, 0x16, 0x00, 0x90, 0x27, 0x3f, 0xc1, 0x4d) |
| 557 | |
| 558 | #define SMBIOS3_TABLE_GUID \ |
| 559 | EFI_GUID(0xf2fd1544, 0x9794, 0x4a2c, \ |
| 560 | 0x99, 0x2e, 0xe5, 0xbb, 0xcf, 0x20, 0xe3, 0x94) |
| 561 | |
| 562 | #define SAL_SYSTEM_TABLE_GUID \ |
| 563 | EFI_GUID(0xeb9d2d32, 0x2d88, 0x11d3, \ |
| 564 | 0x9a, 0x16, 0x00, 0x90, 0x27, 0x3f, 0xc1, 0x4d) |
| 565 | |
| 566 | #define HCDP_TABLE_GUID \ |
| 567 | EFI_GUID(0xf951938d, 0x620b, 0x42ef, \ |
| 568 | 0x82, 0x79, 0xa8, 0x4b, 0x79, 0x61, 0x78, 0x98) |
| 569 | |
| 570 | #define UGA_IO_PROTOCOL_GUID \ |
| 571 | EFI_GUID(0x61a4d49e, 0x6f68, 0x4f1b, \ |
| 572 | 0xb9, 0x22, 0xa8, 0x6e, 0xed, 0x0b, 0x07, 0xa2) |
| 573 | |
| 574 | #define EFI_GLOBAL_VARIABLE_GUID \ |
| 575 | EFI_GUID(0x8be4df61, 0x93ca, 0x11d2, \ |
| 576 | 0xaa, 0x0d, 0x00, 0xe0, 0x98, 0x03, 0x2b, 0x8c) |
| 577 | |
| 578 | #define UV_SYSTEM_TABLE_GUID \ |
| 579 | EFI_GUID(0x3b13a7d4, 0x633e, 0x11dd, \ |
| 580 | 0x93, 0xec, 0xda, 0x25, 0x56, 0xd8, 0x95, 0x93) |
| 581 | |
| 582 | #define LINUX_EFI_CRASH_GUID \ |
| 583 | EFI_GUID(0xcfc8fc79, 0xbe2e, 0x4ddc, \ |
| 584 | 0x97, 0xf0, 0x9f, 0x98, 0xbf, 0xe2, 0x98, 0xa0) |
| 585 | |
| 586 | #define LOADED_IMAGE_PROTOCOL_GUID \ |
| 587 | EFI_GUID(0x5b1b31a1, 0x9562, 0x11d2, \ |
| 588 | 0x8e, 0x3f, 0x00, 0xa0, 0xc9, 0x69, 0x72, 0x3b) |
| 589 | |
| 590 | #define EFI_GRAPHICS_OUTPUT_PROTOCOL_GUID \ |
| 591 | EFI_GUID(0x9042a9de, 0x23dc, 0x4a38, \ |
| 592 | 0x96, 0xfb, 0x7a, 0xde, 0xd0, 0x80, 0x51, 0x6a) |
| 593 | |
| 594 | #define EFI_UGA_PROTOCOL_GUID \ |
| 595 | EFI_GUID(0x982c298b, 0xf4fa, 0x41cb, \ |
| 596 | 0xb8, 0x38, 0x77, 0xaa, 0x68, 0x8f, 0xb8, 0x39) |
| 597 | |
| 598 | #define EFI_PCI_IO_PROTOCOL_GUID \ |
| 599 | EFI_GUID(0x4cf5b200, 0x68b8, 0x4ca5, \ |
| 600 | 0x9e, 0xec, 0xb2, 0x3e, 0x3f, 0x50, 0x02, 0x9a) |
| 601 | |
| 602 | #define EFI_FILE_INFO_ID \ |
| 603 | EFI_GUID(0x9576e92, 0x6d3f, 0x11d2, \ |
| 604 | 0x8e, 0x39, 0x00, 0xa0, 0xc9, 0x69, 0x72, 0x3b) |
| 605 | |
| 606 | #define EFI_SYSTEM_RESOURCE_TABLE_GUID \ |
| 607 | EFI_GUID(0xb122a263, 0x3661, 0x4f68, \ |
| 608 | 0x99, 0x29, 0x78, 0xf8, 0xb0, 0xd6, 0x21, 0x80) |
| 609 | |
| 610 | #define EFI_FILE_SYSTEM_GUID \ |
| 611 | EFI_GUID(0x964e5b22, 0x6459, 0x11d2, \ |
| 612 | 0x8e, 0x39, 0x00, 0xa0, 0xc9, 0x69, 0x72, 0x3b) |
| 613 | |
| 614 | #define DEVICE_TREE_GUID \ |
| 615 | EFI_GUID(0xb1b621d5, 0xf19c, 0x41a5, \ |
| 616 | 0x83, 0x0b, 0xd9, 0x15, 0x2c, 0x69, 0xaa, 0xe0) |
| 617 | |
| 618 | #define EFI_PROPERTIES_TABLE_GUID \ |
| 619 | EFI_GUID(0x880aaca3, 0x4adc, 0x4a04, \ |
| 620 | 0x90, 0x79, 0xb7, 0x47, 0x34, 0x08, 0x25, 0xe5) |
| 621 | |
| 622 | #define EFI_RNG_PROTOCOL_GUID \ |
| 623 | EFI_GUID(0x3152bca5, 0xeade, 0x433d, \ |
| 624 | 0x86, 0x2e, 0xc0, 0x1c, 0xdc, 0x29, 0x1f, 0x44) |
| 625 | |
| 626 | typedef struct { |
| 627 | efi_guid_t guid; |
| 628 | u64 table; |
| 629 | } efi_config_table_64_t; |
| 630 | |
| 631 | typedef struct { |
| 632 | efi_guid_t guid; |
| 633 | u32 table; |
| 634 | } efi_config_table_32_t; |
| 635 | |
| 636 | typedef struct { |
| 637 | efi_guid_t guid; |
| 638 | unsigned long table; |
| 639 | } efi_config_table_t; |
| 640 | |
| 641 | typedef struct { |
| 642 | efi_guid_t guid; |
| 643 | const char *name; |
| 644 | unsigned long *ptr; |
| 645 | } efi_config_table_type_t; |
| 646 | |
| 647 | #define EFI_SYSTEM_TABLE_SIGNATURE ((u64)0x5453595320494249ULL) |
| 648 | |
| 649 | #define EFI_2_30_SYSTEM_TABLE_REVISION ((2 << 16) | (30)) |
| 650 | #define EFI_2_20_SYSTEM_TABLE_REVISION ((2 << 16) | (20)) |
| 651 | #define EFI_2_10_SYSTEM_TABLE_REVISION ((2 << 16) | (10)) |
| 652 | #define EFI_2_00_SYSTEM_TABLE_REVISION ((2 << 16) | (00)) |
| 653 | #define EFI_1_10_SYSTEM_TABLE_REVISION ((1 << 16) | (10)) |
| 654 | #define EFI_1_02_SYSTEM_TABLE_REVISION ((1 << 16) | (02)) |
| 655 | |
| 656 | typedef struct { |
| 657 | efi_table_hdr_t hdr; |
| 658 | u64 fw_vendor; /* physical addr of CHAR16 vendor string */ |
| 659 | u32 fw_revision; |
| 660 | u32 __pad1; |
| 661 | u64 con_in_handle; |
| 662 | u64 con_in; |
| 663 | u64 con_out_handle; |
| 664 | u64 con_out; |
| 665 | u64 stderr_handle; |
| 666 | u64 stderr; |
| 667 | u64 runtime; |
| 668 | u64 boottime; |
| 669 | u32 nr_tables; |
| 670 | u32 __pad2; |
| 671 | u64 tables; |
| 672 | } efi_system_table_64_t; |
| 673 | |
| 674 | typedef struct { |
| 675 | efi_table_hdr_t hdr; |
| 676 | u32 fw_vendor; /* physical addr of CHAR16 vendor string */ |
| 677 | u32 fw_revision; |
| 678 | u32 con_in_handle; |
| 679 | u32 con_in; |
| 680 | u32 con_out_handle; |
| 681 | u32 con_out; |
| 682 | u32 stderr_handle; |
| 683 | u32 stderr; |
| 684 | u32 runtime; |
| 685 | u32 boottime; |
| 686 | u32 nr_tables; |
| 687 | u32 tables; |
| 688 | } efi_system_table_32_t; |
| 689 | |
| 690 | typedef struct { |
| 691 | efi_table_hdr_t hdr; |
| 692 | unsigned long fw_vendor; /* physical addr of CHAR16 vendor string */ |
| 693 | u32 fw_revision; |
| 694 | unsigned long con_in_handle; |
| 695 | unsigned long con_in; |
| 696 | unsigned long con_out_handle; |
| 697 | unsigned long con_out; |
| 698 | unsigned long stderr_handle; |
| 699 | unsigned long stderr; |
| 700 | efi_runtime_services_t *runtime; |
| 701 | efi_boot_services_t *boottime; |
| 702 | unsigned long nr_tables; |
| 703 | unsigned long tables; |
| 704 | } efi_system_table_t; |
| 705 | |
| 706 | struct efi_memory_map { |
| 707 | phys_addr_t phys_map; |
| 708 | void *map; |
| 709 | void *map_end; |
| 710 | int nr_map; |
| 711 | unsigned long desc_version; |
| 712 | unsigned long desc_size; |
| 713 | }; |
| 714 | |
| 715 | struct efi_fdt_params { |
| 716 | u64 system_table; |
| 717 | u64 mmap; |
| 718 | u32 mmap_size; |
| 719 | u32 desc_size; |
| 720 | u32 desc_ver; |
| 721 | }; |
| 722 | |
| 723 | typedef struct { |
| 724 | u32 revision; |
| 725 | u32 parent_handle; |
| 726 | u32 system_table; |
| 727 | u32 device_handle; |
| 728 | u32 file_path; |
| 729 | u32 reserved; |
| 730 | u32 load_options_size; |
| 731 | u32 load_options; |
| 732 | u32 image_base; |
| 733 | __aligned_u64 image_size; |
| 734 | unsigned int image_code_type; |
| 735 | unsigned int image_data_type; |
| 736 | unsigned long unload; |
| 737 | } efi_loaded_image_32_t; |
| 738 | |
| 739 | typedef struct { |
| 740 | u32 revision; |
| 741 | u64 parent_handle; |
| 742 | u64 system_table; |
| 743 | u64 device_handle; |
| 744 | u64 file_path; |
| 745 | u64 reserved; |
| 746 | u32 load_options_size; |
| 747 | u64 load_options; |
| 748 | u64 image_base; |
| 749 | __aligned_u64 image_size; |
| 750 | unsigned int image_code_type; |
| 751 | unsigned int image_data_type; |
| 752 | unsigned long unload; |
| 753 | } efi_loaded_image_64_t; |
| 754 | |
| 755 | typedef struct { |
| 756 | u32 revision; |
| 757 | void *parent_handle; |
| 758 | efi_system_table_t *system_table; |
| 759 | void *device_handle; |
| 760 | void *file_path; |
| 761 | void *reserved; |
| 762 | u32 load_options_size; |
| 763 | void *load_options; |
| 764 | void *image_base; |
| 765 | __aligned_u64 image_size; |
| 766 | unsigned int image_code_type; |
| 767 | unsigned int image_data_type; |
| 768 | unsigned long unload; |
| 769 | } efi_loaded_image_t; |
| 770 | |
| 771 | |
| 772 | typedef struct { |
| 773 | u64 size; |
| 774 | u64 file_size; |
| 775 | u64 phys_size; |
| 776 | efi_time_t create_time; |
| 777 | efi_time_t last_access_time; |
| 778 | efi_time_t modification_time; |
| 779 | __aligned_u64 attribute; |
| 780 | efi_char16_t filename[1]; |
| 781 | } efi_file_info_t; |
| 782 | |
| 783 | typedef struct { |
| 784 | u64 revision; |
| 785 | u32 open; |
| 786 | u32 close; |
| 787 | u32 delete; |
| 788 | u32 read; |
| 789 | u32 write; |
| 790 | u32 get_position; |
| 791 | u32 set_position; |
| 792 | u32 get_info; |
| 793 | u32 set_info; |
| 794 | u32 flush; |
| 795 | } efi_file_handle_32_t; |
| 796 | |
| 797 | typedef struct { |
| 798 | u64 revision; |
| 799 | u64 open; |
| 800 | u64 close; |
| 801 | u64 delete; |
| 802 | u64 read; |
| 803 | u64 write; |
| 804 | u64 get_position; |
| 805 | u64 set_position; |
| 806 | u64 get_info; |
| 807 | u64 set_info; |
| 808 | u64 flush; |
| 809 | } efi_file_handle_64_t; |
| 810 | |
| 811 | typedef struct _efi_file_handle { |
| 812 | u64 revision; |
| 813 | efi_status_t (*open)(struct _efi_file_handle *, |
| 814 | struct _efi_file_handle **, |
| 815 | efi_char16_t *, u64, u64); |
| 816 | efi_status_t (*close)(struct _efi_file_handle *); |
| 817 | void *delete; |
| 818 | efi_status_t (*read)(struct _efi_file_handle *, unsigned long *, |
| 819 | void *); |
| 820 | void *write; |
| 821 | void *get_position; |
| 822 | void *set_position; |
| 823 | efi_status_t (*get_info)(struct _efi_file_handle *, efi_guid_t *, |
| 824 | unsigned long *, void *); |
| 825 | void *set_info; |
| 826 | void *flush; |
| 827 | } efi_file_handle_t; |
| 828 | |
| 829 | typedef struct _efi_file_io_interface { |
| 830 | u64 revision; |
| 831 | int (*open_volume)(struct _efi_file_io_interface *, |
| 832 | efi_file_handle_t **); |
| 833 | } efi_file_io_interface_t; |
| 834 | |
| 835 | #define EFI_FILE_MODE_READ 0x0000000000000001 |
| 836 | #define EFI_FILE_MODE_WRITE 0x0000000000000002 |
| 837 | #define EFI_FILE_MODE_CREATE 0x8000000000000000 |
| 838 | |
| 839 | typedef struct { |
| 840 | u32 version; |
| 841 | u32 length; |
| 842 | u64 memory_protection_attribute; |
| 843 | } efi_properties_table_t; |
| 844 | |
| 845 | #define EFI_PROPERTIES_TABLE_VERSION 0x00010000 |
| 846 | #define EFI_PROPERTIES_RUNTIME_MEMORY_PROTECTION_NON_EXECUTABLE_PE_DATA 0x1 |
| 847 | |
| 848 | #define EFI_INVALID_TABLE_ADDR (~0UL) |
| 849 | |
| 850 | /* |
| 851 | * All runtime access to EFI goes through this structure: |
| 852 | */ |
| 853 | extern struct efi { |
| 854 | efi_system_table_t *systab; /* EFI system table */ |
| 855 | unsigned int runtime_version; /* Runtime services version */ |
| 856 | unsigned long mps; /* MPS table */ |
| 857 | unsigned long acpi; /* ACPI table (IA64 ext 0.71) */ |
| 858 | unsigned long acpi20; /* ACPI table (ACPI 2.0) */ |
| 859 | unsigned long smbios; /* SMBIOS table (32 bit entry point) */ |
| 860 | unsigned long smbios3; /* SMBIOS table (64 bit entry point) */ |
| 861 | unsigned long sal_systab; /* SAL system table */ |
| 862 | unsigned long boot_info; /* boot info table */ |
| 863 | unsigned long hcdp; /* HCDP table */ |
| 864 | unsigned long uga; /* UGA table */ |
| 865 | unsigned long uv_systab; /* UV system table */ |
| 866 | unsigned long fw_vendor; /* fw_vendor */ |
| 867 | unsigned long runtime; /* runtime table */ |
| 868 | unsigned long config_table; /* config tables */ |
| 869 | unsigned long esrt; /* ESRT table */ |
| 870 | unsigned long properties_table; /* properties table */ |
| 871 | efi_get_time_t *get_time; |
| 872 | efi_set_time_t *set_time; |
| 873 | efi_get_wakeup_time_t *get_wakeup_time; |
| 874 | efi_set_wakeup_time_t *set_wakeup_time; |
| 875 | efi_get_variable_t *get_variable; |
| 876 | efi_get_next_variable_t *get_next_variable; |
| 877 | efi_set_variable_t *set_variable; |
| 878 | efi_set_variable_t *set_variable_nonblocking; |
| 879 | efi_query_variable_info_t *query_variable_info; |
| 880 | efi_query_variable_info_t *query_variable_info_nonblocking; |
| 881 | efi_update_capsule_t *update_capsule; |
| 882 | efi_query_capsule_caps_t *query_capsule_caps; |
| 883 | efi_get_next_high_mono_count_t *get_next_high_mono_count; |
| 884 | efi_reset_system_t *reset_system; |
| 885 | efi_set_virtual_address_map_t *set_virtual_address_map; |
| 886 | struct efi_memory_map *memmap; |
| 887 | unsigned long flags; |
| 888 | } efi; |
| 889 | |
| 890 | static inline int |
| 891 | efi_guidcmp (efi_guid_t left, efi_guid_t right) |
| 892 | { |
| 893 | return memcmp(&left, &right, sizeof (efi_guid_t)); |
| 894 | } |
| 895 | |
| 896 | static inline char * |
| 897 | efi_guid_to_str(efi_guid_t *guid, char *out) |
| 898 | { |
| 899 | sprintf(out, "%pUl", guid->b); |
| 900 | return out; |
| 901 | } |
| 902 | |
| 903 | extern void efi_init (void); |
| 904 | extern void *efi_get_pal_addr (void); |
| 905 | extern void efi_map_pal_code (void); |
| 906 | extern void efi_memmap_walk (efi_freemem_callback_t callback, void *arg); |
| 907 | extern void efi_gettimeofday (struct timespec *ts); |
| 908 | extern void efi_enter_virtual_mode (void); /* switch EFI to virtual mode, if possible */ |
| 909 | #ifdef CONFIG_X86 |
| 910 | extern void efi_late_init(void); |
| 911 | extern void efi_free_boot_services(void); |
| 912 | extern efi_status_t efi_query_variable_store(u32 attributes, |
| 913 | unsigned long size, |
| 914 | bool nonblocking); |
| 915 | extern void efi_find_mirror(void); |
| 916 | #else |
| 917 | static inline void efi_late_init(void) {} |
| 918 | static inline void efi_free_boot_services(void) {} |
| 919 | |
| 920 | static inline efi_status_t efi_query_variable_store(u32 attributes, |
| 921 | unsigned long size, |
| 922 | bool nonblocking) |
| 923 | { |
| 924 | return EFI_SUCCESS; |
| 925 | } |
| 926 | #endif |
| 927 | extern void __iomem *efi_lookup_mapped_addr(u64 phys_addr); |
| 928 | extern int efi_config_init(efi_config_table_type_t *arch_tables); |
| 929 | #ifdef CONFIG_EFI_ESRT |
| 930 | extern void __init efi_esrt_init(void); |
| 931 | #else |
| 932 | static inline void efi_esrt_init(void) { } |
| 933 | #endif |
| 934 | extern int efi_config_parse_tables(void *config_tables, int count, int sz, |
| 935 | efi_config_table_type_t *arch_tables); |
| 936 | extern u64 efi_get_iobase (void); |
| 937 | extern u32 efi_mem_type (unsigned long phys_addr); |
| 938 | extern u64 efi_mem_attributes (unsigned long phys_addr); |
| 939 | extern u64 efi_mem_attribute (unsigned long phys_addr, unsigned long size); |
| 940 | extern int __init efi_uart_console_only (void); |
| 941 | extern u64 efi_mem_desc_end(efi_memory_desc_t *md); |
| 942 | extern int efi_mem_desc_lookup(u64 phys_addr, efi_memory_desc_t *out_md); |
| 943 | extern void efi_initialize_iomem_resources(struct resource *code_resource, |
| 944 | struct resource *data_resource, struct resource *bss_resource); |
| 945 | extern void efi_get_time(struct timespec *now); |
| 946 | extern void efi_reserve_boot_services(void); |
| 947 | extern int efi_get_fdt_params(struct efi_fdt_params *params); |
| 948 | extern struct efi_memory_map memmap; |
| 949 | extern struct kobject *efi_kobj; |
| 950 | |
| 951 | extern int efi_reboot_quirk_mode; |
| 952 | extern bool efi_poweroff_required(void); |
| 953 | |
| 954 | #ifdef CONFIG_EFI_FAKE_MEMMAP |
| 955 | extern void __init efi_fake_memmap(void); |
| 956 | #else |
| 957 | static inline void efi_fake_memmap(void) { } |
| 958 | #endif |
| 959 | |
| 960 | /* Iterate through an efi_memory_map */ |
| 961 | #define for_each_efi_memory_desc(m, md) \ |
| 962 | for ((md) = (m)->map; \ |
| 963 | (md) <= (efi_memory_desc_t *)((m)->map_end - (m)->desc_size); \ |
| 964 | (md) = (void *)(md) + (m)->desc_size) |
| 965 | |
| 966 | /* |
| 967 | * Format an EFI memory descriptor's type and attributes to a user-provided |
| 968 | * character buffer, as per snprintf(), and return the buffer. |
| 969 | */ |
| 970 | char * __init efi_md_typeattr_format(char *buf, size_t size, |
| 971 | const efi_memory_desc_t *md); |
| 972 | |
| 973 | /** |
| 974 | * efi_range_is_wc - check the WC bit on an address range |
| 975 | * @start: starting kvirt address |
| 976 | * @len: length of range |
| 977 | * |
| 978 | * Consult the EFI memory map and make sure it's ok to set this range WC. |
| 979 | * Returns true or false. |
| 980 | */ |
| 981 | static inline int efi_range_is_wc(unsigned long start, unsigned long len) |
| 982 | { |
| 983 | unsigned long i; |
| 984 | |
| 985 | for (i = 0; i < len; i += (1UL << EFI_PAGE_SHIFT)) { |
| 986 | unsigned long paddr = __pa(start + i); |
| 987 | if (!(efi_mem_attributes(paddr) & EFI_MEMORY_WC)) |
| 988 | return 0; |
| 989 | } |
| 990 | /* The range checked out */ |
| 991 | return 1; |
| 992 | } |
| 993 | |
| 994 | #ifdef CONFIG_EFI_PCDP |
| 995 | extern int __init efi_setup_pcdp_console(char *); |
| 996 | #endif |
| 997 | |
| 998 | /* |
| 999 | * We play games with efi_enabled so that the compiler will, if |
| 1000 | * possible, remove EFI-related code altogether. |
| 1001 | */ |
| 1002 | #define EFI_BOOT 0 /* Were we booted from EFI? */ |
| 1003 | #define EFI_SYSTEM_TABLES 1 /* Can we use EFI system tables? */ |
| 1004 | #define EFI_CONFIG_TABLES 2 /* Can we use EFI config tables? */ |
| 1005 | #define EFI_RUNTIME_SERVICES 3 /* Can we use runtime services? */ |
| 1006 | #define EFI_MEMMAP 4 /* Can we use EFI memory map? */ |
| 1007 | #define EFI_64BIT 5 /* Is the firmware 64-bit? */ |
| 1008 | #define EFI_PARAVIRT 6 /* Access is via a paravirt interface */ |
| 1009 | #define EFI_ARCH_1 7 /* First arch-specific bit */ |
| 1010 | #define EFI_DBG 8 /* Print additional debug info at runtime */ |
| 1011 | #define EFI_NX_PE_DATA 9 /* Can runtime data regions be mapped non-executable? */ |
| 1012 | |
| 1013 | #ifdef CONFIG_EFI |
| 1014 | /* |
| 1015 | * Test whether the above EFI_* bits are enabled. |
| 1016 | */ |
| 1017 | static inline bool efi_enabled(int feature) |
| 1018 | { |
| 1019 | return test_bit(feature, &efi.flags) != 0; |
| 1020 | } |
| 1021 | extern void efi_reboot(enum reboot_mode reboot_mode, const char *__unused); |
| 1022 | #else |
| 1023 | static inline bool efi_enabled(int feature) |
| 1024 | { |
| 1025 | return false; |
| 1026 | } |
| 1027 | static inline void |
| 1028 | efi_reboot(enum reboot_mode reboot_mode, const char *__unused) {} |
| 1029 | #endif |
| 1030 | |
| 1031 | /* |
| 1032 | * Variable Attributes |
| 1033 | */ |
| 1034 | #define EFI_VARIABLE_NON_VOLATILE 0x0000000000000001 |
| 1035 | #define EFI_VARIABLE_BOOTSERVICE_ACCESS 0x0000000000000002 |
| 1036 | #define EFI_VARIABLE_RUNTIME_ACCESS 0x0000000000000004 |
| 1037 | #define EFI_VARIABLE_HARDWARE_ERROR_RECORD 0x0000000000000008 |
| 1038 | #define EFI_VARIABLE_AUTHENTICATED_WRITE_ACCESS 0x0000000000000010 |
| 1039 | #define EFI_VARIABLE_TIME_BASED_AUTHENTICATED_WRITE_ACCESS 0x0000000000000020 |
| 1040 | #define EFI_VARIABLE_APPEND_WRITE 0x0000000000000040 |
| 1041 | |
| 1042 | #define EFI_VARIABLE_MASK (EFI_VARIABLE_NON_VOLATILE | \ |
| 1043 | EFI_VARIABLE_BOOTSERVICE_ACCESS | \ |
| 1044 | EFI_VARIABLE_RUNTIME_ACCESS | \ |
| 1045 | EFI_VARIABLE_HARDWARE_ERROR_RECORD | \ |
| 1046 | EFI_VARIABLE_AUTHENTICATED_WRITE_ACCESS | \ |
| 1047 | EFI_VARIABLE_TIME_BASED_AUTHENTICATED_WRITE_ACCESS | \ |
| 1048 | EFI_VARIABLE_APPEND_WRITE) |
| 1049 | /* |
| 1050 | * Length of a GUID string (strlen("aaaaaaaa-bbbb-cccc-dddd-eeeeeeeeeeee")) |
| 1051 | * not including trailing NUL |
| 1052 | */ |
| 1053 | #define EFI_VARIABLE_GUID_LEN 36 |
| 1054 | |
| 1055 | /* |
| 1056 | * The type of search to perform when calling boottime->locate_handle |
| 1057 | */ |
| 1058 | #define EFI_LOCATE_ALL_HANDLES 0 |
| 1059 | #define EFI_LOCATE_BY_REGISTER_NOTIFY 1 |
| 1060 | #define EFI_LOCATE_BY_PROTOCOL 2 |
| 1061 | |
| 1062 | /* |
| 1063 | * EFI Device Path information |
| 1064 | */ |
| 1065 | #define EFI_DEV_HW 0x01 |
| 1066 | #define EFI_DEV_PCI 1 |
| 1067 | #define EFI_DEV_PCCARD 2 |
| 1068 | #define EFI_DEV_MEM_MAPPED 3 |
| 1069 | #define EFI_DEV_VENDOR 4 |
| 1070 | #define EFI_DEV_CONTROLLER 5 |
| 1071 | #define EFI_DEV_ACPI 0x02 |
| 1072 | #define EFI_DEV_BASIC_ACPI 1 |
| 1073 | #define EFI_DEV_EXPANDED_ACPI 2 |
| 1074 | #define EFI_DEV_MSG 0x03 |
| 1075 | #define EFI_DEV_MSG_ATAPI 1 |
| 1076 | #define EFI_DEV_MSG_SCSI 2 |
| 1077 | #define EFI_DEV_MSG_FC 3 |
| 1078 | #define EFI_DEV_MSG_1394 4 |
| 1079 | #define EFI_DEV_MSG_USB 5 |
| 1080 | #define EFI_DEV_MSG_USB_CLASS 15 |
| 1081 | #define EFI_DEV_MSG_I20 6 |
| 1082 | #define EFI_DEV_MSG_MAC 11 |
| 1083 | #define EFI_DEV_MSG_IPV4 12 |
| 1084 | #define EFI_DEV_MSG_IPV6 13 |
| 1085 | #define EFI_DEV_MSG_INFINIBAND 9 |
| 1086 | #define EFI_DEV_MSG_UART 14 |
| 1087 | #define EFI_DEV_MSG_VENDOR 10 |
| 1088 | #define EFI_DEV_MEDIA 0x04 |
| 1089 | #define EFI_DEV_MEDIA_HARD_DRIVE 1 |
| 1090 | #define EFI_DEV_MEDIA_CDROM 2 |
| 1091 | #define EFI_DEV_MEDIA_VENDOR 3 |
| 1092 | #define EFI_DEV_MEDIA_FILE 4 |
| 1093 | #define EFI_DEV_MEDIA_PROTOCOL 5 |
| 1094 | #define EFI_DEV_BIOS_BOOT 0x05 |
| 1095 | #define EFI_DEV_END_PATH 0x7F |
| 1096 | #define EFI_DEV_END_PATH2 0xFF |
| 1097 | #define EFI_DEV_END_INSTANCE 0x01 |
| 1098 | #define EFI_DEV_END_ENTIRE 0xFF |
| 1099 | |
| 1100 | struct efi_generic_dev_path { |
| 1101 | u8 type; |
| 1102 | u8 sub_type; |
| 1103 | u16 length; |
| 1104 | } __attribute ((packed)); |
| 1105 | |
| 1106 | static inline void memrange_efi_to_native(u64 *addr, u64 *npages) |
| 1107 | { |
| 1108 | *npages = PFN_UP(*addr + (*npages<<EFI_PAGE_SHIFT)) - PFN_DOWN(*addr); |
| 1109 | *addr &= PAGE_MASK; |
| 1110 | } |
| 1111 | |
| 1112 | /* |
| 1113 | * EFI Variable support. |
| 1114 | * |
| 1115 | * Different firmware drivers can expose their EFI-like variables using |
| 1116 | * the following. |
| 1117 | */ |
| 1118 | |
| 1119 | struct efivar_operations { |
| 1120 | efi_get_variable_t *get_variable; |
| 1121 | efi_get_next_variable_t *get_next_variable; |
| 1122 | efi_set_variable_t *set_variable; |
| 1123 | efi_set_variable_t *set_variable_nonblocking; |
| 1124 | efi_query_variable_store_t *query_variable_store; |
| 1125 | }; |
| 1126 | |
| 1127 | struct efivars { |
| 1128 | /* |
| 1129 | * ->lock protects two things: |
| 1130 | * 1) efivarfs_list and efivars_sysfs_list |
| 1131 | * 2) ->ops calls |
| 1132 | */ |
| 1133 | spinlock_t lock; |
| 1134 | struct kset *kset; |
| 1135 | struct kobject *kobject; |
| 1136 | const struct efivar_operations *ops; |
| 1137 | }; |
| 1138 | |
| 1139 | /* |
| 1140 | * The maximum size of VariableName + Data = 1024 |
| 1141 | * Therefore, it's reasonable to save that much |
| 1142 | * space in each part of the structure, |
| 1143 | * and we use a page for reading/writing. |
| 1144 | */ |
| 1145 | |
| 1146 | #define EFI_VAR_NAME_LEN 1024 |
| 1147 | |
| 1148 | struct efi_variable { |
| 1149 | efi_char16_t VariableName[EFI_VAR_NAME_LEN/sizeof(efi_char16_t)]; |
| 1150 | efi_guid_t VendorGuid; |
| 1151 | unsigned long DataSize; |
| 1152 | __u8 Data[1024]; |
| 1153 | efi_status_t Status; |
| 1154 | __u32 Attributes; |
| 1155 | } __attribute__((packed)); |
| 1156 | |
| 1157 | struct efivar_entry { |
| 1158 | struct efi_variable var; |
| 1159 | struct list_head list; |
| 1160 | struct kobject kobj; |
| 1161 | bool scanning; |
| 1162 | bool deleting; |
| 1163 | }; |
| 1164 | |
| 1165 | struct efi_simple_text_output_protocol_32 { |
| 1166 | u32 reset; |
| 1167 | u32 output_string; |
| 1168 | u32 test_string; |
| 1169 | }; |
| 1170 | |
| 1171 | struct efi_simple_text_output_protocol_64 { |
| 1172 | u64 reset; |
| 1173 | u64 output_string; |
| 1174 | u64 test_string; |
| 1175 | }; |
| 1176 | |
| 1177 | struct efi_simple_text_output_protocol { |
| 1178 | void *reset; |
| 1179 | efi_status_t (*output_string)(void *, void *); |
| 1180 | void *test_string; |
| 1181 | }; |
| 1182 | |
| 1183 | extern struct list_head efivar_sysfs_list; |
| 1184 | |
| 1185 | static inline void |
| 1186 | efivar_unregister(struct efivar_entry *var) |
| 1187 | { |
| 1188 | kobject_put(&var->kobj); |
| 1189 | } |
| 1190 | |
| 1191 | int efivars_register(struct efivars *efivars, |
| 1192 | const struct efivar_operations *ops, |
| 1193 | struct kobject *kobject); |
| 1194 | int efivars_unregister(struct efivars *efivars); |
| 1195 | struct kobject *efivars_kobject(void); |
| 1196 | |
| 1197 | int efivar_init(int (*func)(efi_char16_t *, efi_guid_t, unsigned long, void *), |
| 1198 | void *data, bool atomic, bool duplicates, |
| 1199 | struct list_head *head); |
| 1200 | |
| 1201 | void efivar_entry_add(struct efivar_entry *entry, struct list_head *head); |
| 1202 | void efivar_entry_remove(struct efivar_entry *entry); |
| 1203 | |
| 1204 | int __efivar_entry_delete(struct efivar_entry *entry); |
| 1205 | int efivar_entry_delete(struct efivar_entry *entry); |
| 1206 | |
| 1207 | int efivar_entry_size(struct efivar_entry *entry, unsigned long *size); |
| 1208 | int __efivar_entry_get(struct efivar_entry *entry, u32 *attributes, |
| 1209 | unsigned long *size, void *data); |
| 1210 | int efivar_entry_get(struct efivar_entry *entry, u32 *attributes, |
| 1211 | unsigned long *size, void *data); |
| 1212 | int efivar_entry_set(struct efivar_entry *entry, u32 attributes, |
| 1213 | unsigned long size, void *data, struct list_head *head); |
| 1214 | int efivar_entry_set_get_size(struct efivar_entry *entry, u32 attributes, |
| 1215 | unsigned long *size, void *data, bool *set); |
| 1216 | int efivar_entry_set_safe(efi_char16_t *name, efi_guid_t vendor, u32 attributes, |
| 1217 | bool block, unsigned long size, void *data); |
| 1218 | |
| 1219 | void efivar_entry_iter_begin(void); |
| 1220 | void efivar_entry_iter_end(void); |
| 1221 | |
| 1222 | int __efivar_entry_iter(int (*func)(struct efivar_entry *, void *), |
| 1223 | struct list_head *head, void *data, |
| 1224 | struct efivar_entry **prev); |
| 1225 | int efivar_entry_iter(int (*func)(struct efivar_entry *, void *), |
| 1226 | struct list_head *head, void *data); |
| 1227 | |
| 1228 | struct efivar_entry *efivar_entry_find(efi_char16_t *name, efi_guid_t guid, |
| 1229 | struct list_head *head, bool remove); |
| 1230 | |
| 1231 | bool efivar_validate(efi_guid_t vendor, efi_char16_t *var_name, u8 *data, |
| 1232 | unsigned long data_size); |
| 1233 | bool efivar_variable_is_removable(efi_guid_t vendor, const char *name, |
| 1234 | size_t len); |
| 1235 | |
| 1236 | extern struct work_struct efivar_work; |
| 1237 | void efivar_run_worker(void); |
| 1238 | |
| 1239 | #if defined(CONFIG_EFI_VARS) || defined(CONFIG_EFI_VARS_MODULE) |
| 1240 | int efivars_sysfs_init(void); |
| 1241 | |
| 1242 | #define EFIVARS_DATA_SIZE_MAX 1024 |
| 1243 | |
| 1244 | #endif /* CONFIG_EFI_VARS */ |
| 1245 | |
| 1246 | #ifdef CONFIG_EFI_RUNTIME_MAP |
| 1247 | int efi_runtime_map_init(struct kobject *); |
| 1248 | void efi_runtime_map_setup(void *, int, u32); |
| 1249 | int efi_get_runtime_map_size(void); |
| 1250 | int efi_get_runtime_map_desc_size(void); |
| 1251 | int efi_runtime_map_copy(void *buf, size_t bufsz); |
| 1252 | #else |
| 1253 | static inline int efi_runtime_map_init(struct kobject *kobj) |
| 1254 | { |
| 1255 | return 0; |
| 1256 | } |
| 1257 | |
| 1258 | static inline void |
| 1259 | efi_runtime_map_setup(void *map, int nr_entries, u32 desc_size) {} |
| 1260 | |
| 1261 | static inline int efi_get_runtime_map_size(void) |
| 1262 | { |
| 1263 | return 0; |
| 1264 | } |
| 1265 | |
| 1266 | static inline int efi_get_runtime_map_desc_size(void) |
| 1267 | { |
| 1268 | return 0; |
| 1269 | } |
| 1270 | |
| 1271 | static inline int efi_runtime_map_copy(void *buf, size_t bufsz) |
| 1272 | { |
| 1273 | return 0; |
| 1274 | } |
| 1275 | |
| 1276 | #endif |
| 1277 | |
| 1278 | /* prototypes shared between arch specific and generic stub code */ |
| 1279 | |
| 1280 | #define pr_efi(sys_table, msg) efi_printk(sys_table, "EFI stub: "msg) |
| 1281 | #define pr_efi_err(sys_table, msg) efi_printk(sys_table, "EFI stub: ERROR: "msg) |
| 1282 | |
| 1283 | void efi_printk(efi_system_table_t *sys_table_arg, char *str); |
| 1284 | |
| 1285 | void efi_free(efi_system_table_t *sys_table_arg, unsigned long size, |
| 1286 | unsigned long addr); |
| 1287 | |
| 1288 | char *efi_convert_cmdline(efi_system_table_t *sys_table_arg, |
| 1289 | efi_loaded_image_t *image, int *cmd_line_len); |
| 1290 | |
| 1291 | efi_status_t efi_get_memory_map(efi_system_table_t *sys_table_arg, |
| 1292 | efi_memory_desc_t **map, |
| 1293 | unsigned long *map_size, |
| 1294 | unsigned long *desc_size, |
| 1295 | u32 *desc_ver, |
| 1296 | unsigned long *key_ptr); |
| 1297 | |
| 1298 | efi_status_t efi_low_alloc(efi_system_table_t *sys_table_arg, |
| 1299 | unsigned long size, unsigned long align, |
| 1300 | unsigned long *addr); |
| 1301 | |
| 1302 | efi_status_t efi_high_alloc(efi_system_table_t *sys_table_arg, |
| 1303 | unsigned long size, unsigned long align, |
| 1304 | unsigned long *addr, unsigned long max); |
| 1305 | |
| 1306 | efi_status_t efi_relocate_kernel(efi_system_table_t *sys_table_arg, |
| 1307 | unsigned long *image_addr, |
| 1308 | unsigned long image_size, |
| 1309 | unsigned long alloc_size, |
| 1310 | unsigned long preferred_addr, |
| 1311 | unsigned long alignment); |
| 1312 | |
| 1313 | efi_status_t handle_cmdline_files(efi_system_table_t *sys_table_arg, |
| 1314 | efi_loaded_image_t *image, |
| 1315 | char *cmd_line, char *option_string, |
| 1316 | unsigned long max_addr, |
| 1317 | unsigned long *load_addr, |
| 1318 | unsigned long *load_size); |
| 1319 | |
| 1320 | efi_status_t efi_parse_options(char *cmdline); |
| 1321 | |
| 1322 | bool efi_runtime_disabled(void); |
| 1323 | #endif /* _LINUX_EFI_H */ |