Blame view
include/efi.h
12 KB
867a6ac86 efi: Add start-up... |
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 |
/* * Extensible Firmware Interface * Based on 'Extensible Firmware Interface Specification' version 0.9, * April 30, 1999 * * Copyright (C) 1999 VA Linux Systems * Copyright (C) 1999 Walt Drummond <drummond@valinux.com> * Copyright (C) 1999, 2002-2003 Hewlett-Packard Co. * David Mosberger-Tang <davidm@hpl.hp.com> * Stephane Eranian <eranian@hpl.hp.com> * * From include/linux/efi.h in kernel 4.1 with some additions/subtractions */ #ifndef _EFI_H #define _EFI_H |
a0b49bc33 efi: Use asmlinka... |
17 |
#include <linux/linkage.h> |
867a6ac86 efi: Add start-up... |
18 19 |
#include <linux/string.h> #include <linux/types.h> |
6698bb343 efi: Conflict efi... |
20 |
#if CONFIG_EFI_STUB_64BIT || (!defined(CONFIG_EFI_STUB) && defined(__x86_64__)) |
96a8d409a efi: Add 64-bit p... |
21 22 23 |
/* EFI uses the Microsoft ABI which is not the default for GCC */ #define EFIAPI __attribute__((ms_abi)) #else |
a0b49bc33 efi: Use asmlinka... |
24 |
#define EFIAPI asmlinkage |
96a8d409a efi: Add 64-bit p... |
25 |
#endif |
867a6ac86 efi: Add start-up... |
26 |
struct efi_device_path; |
0d6ab32e3 part: move efi_gu... |
27 28 29 |
typedef struct { u8 b[16]; } efi_guid_t; |
3e6cc35f4 x86: efi: Fix EFI... |
30 |
#define EFI_BITS_PER_LONG BITS_PER_LONG |
5abd9137d x86: Tidy up sele... |
31 32 33 34 35 |
/* * With 64-bit EFI stub, EFI_BITS_PER_LONG has to be 64. EFI_STUB is set * in lib/efi/Makefile, when building the stub. */ #if defined(CONFIG_EFI_STUB_64BIT) && defined(EFI_STUB) |
3e6cc35f4 x86: efi: Fix EFI... |
36 37 38 |
#undef EFI_BITS_PER_LONG #define EFI_BITS_PER_LONG 64 #endif |
3c8ffb687 efi_loader: defin... |
39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 |
/* Bit mask for EFI status code with error */ #define EFI_ERROR_MASK (1UL << (EFI_BITS_PER_LONG - 1)) /* Status codes returned by EFI protocols */ #define EFI_SUCCESS 0 #define EFI_LOAD_ERROR (EFI_ERROR_MASK | 1) #define EFI_INVALID_PARAMETER (EFI_ERROR_MASK | 2) #define EFI_UNSUPPORTED (EFI_ERROR_MASK | 3) #define EFI_BAD_BUFFER_SIZE (EFI_ERROR_MASK | 4) #define EFI_BUFFER_TOO_SMALL (EFI_ERROR_MASK | 5) #define EFI_NOT_READY (EFI_ERROR_MASK | 6) #define EFI_DEVICE_ERROR (EFI_ERROR_MASK | 7) #define EFI_WRITE_PROTECTED (EFI_ERROR_MASK | 8) #define EFI_OUT_OF_RESOURCES (EFI_ERROR_MASK | 9) #define EFI_VOLUME_CORRUPTED (EFI_ERROR_MASK | 10) #define EFI_VOLUME_FULL (EFI_ERROR_MASK | 11) #define EFI_NO_MEDIA (EFI_ERROR_MASK | 12) #define EFI_MEDIA_CHANGED (EFI_ERROR_MASK | 13) #define EFI_NOT_FOUND (EFI_ERROR_MASK | 14) #define EFI_ACCESS_DENIED (EFI_ERROR_MASK | 15) #define EFI_NO_RESPONSE (EFI_ERROR_MASK | 16) #define EFI_NO_MAPPING (EFI_ERROR_MASK | 17) #define EFI_TIMEOUT (EFI_ERROR_MASK | 18) #define EFI_NOT_STARTED (EFI_ERROR_MASK | 19) #define EFI_ALREADY_STARTED (EFI_ERROR_MASK | 20) #define EFI_ABORTED (EFI_ERROR_MASK | 21) #define EFI_ICMP_ERROR (EFI_ERROR_MASK | 22) #define EFI_TFTP_ERROR (EFI_ERROR_MASK | 23) #define EFI_PROTOCOL_ERROR (EFI_ERROR_MASK | 24) #define EFI_INCOMPATIBLE_VERSION (EFI_ERROR_MASK | 25) #define EFI_SECURITY_VIOLATION (EFI_ERROR_MASK | 26) #define EFI_CRC_ERROR (EFI_ERROR_MASK | 27) #define EFI_END_OF_MEDIA (EFI_ERROR_MASK | 28) #define EFI_END_OF_FILE (EFI_ERROR_MASK | 31) #define EFI_INVALID_LANGUAGE (EFI_ERROR_MASK | 32) #define EFI_COMPROMISED_DATA (EFI_ERROR_MASK | 33) #define EFI_IP_ADDRESS_CONFLICT (EFI_ERROR_MASK | 34) #define EFI_HTTP_ERROR (EFI_ERROR_MASK | 35) |
867a6ac86 efi: Add start-up... |
76 |
|
2a92080d8 efi_loader: add f... |
77 |
#define EFI_WARN_DELETE_FAILURE 2 |
867a6ac86 efi: Add start-up... |
78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 |
typedef unsigned long efi_status_t; typedef u64 efi_physical_addr_t; typedef u64 efi_virtual_addr_t; typedef void *efi_handle_t; #define EFI_GUID(a, b, c, d0, d1, d2, d3, d4, d5, d6, d7) \ ((efi_guid_t) \ {{ (a) & 0xff, ((a) >> 8) & 0xff, ((a) >> 16) & 0xff, \ ((a) >> 24) & 0xff, \ (b) & 0xff, ((b) >> 8) & 0xff, \ (c) & 0xff, ((c) >> 8) & 0xff, \ (d0), (d1), (d2), (d3), (d4), (d5), (d6), (d7) } }) /* Generic EFI table header */ struct efi_table_hdr { u64 signature; u32 revision; u32 headersize; u32 crc32; u32 reserved; }; /* Enumeration of memory types introduced in UEFI */ enum efi_mem_type { EFI_RESERVED_MEMORY_TYPE, /* * The code portions of a loaded application. * (Note that UEFI OS loaders are UEFI applications.) */ EFI_LOADER_CODE, /* * The data portions of a loaded application and * the default data allocation type used by an application * to allocate pool memory. */ EFI_LOADER_DATA, /* The code portions of a loaded Boot Services Driver */ EFI_BOOT_SERVICES_CODE, /* |
29f1a3670 efi_loader: fix t... |
117 |
* The data portions of a loaded Boot Services Driver and |
867a6ac86 efi: Add start-up... |
118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 |
* the default data allocation type used by a Boot Services * Driver to allocate pool memory. */ EFI_BOOT_SERVICES_DATA, /* The code portions of a loaded Runtime Services Driver */ EFI_RUNTIME_SERVICES_CODE, /* * The data portions of a loaded Runtime Services Driver and * the default data allocation type used by a Runtime Services * Driver to allocate pool memory. */ EFI_RUNTIME_SERVICES_DATA, /* Free (unallocated) memory */ EFI_CONVENTIONAL_MEMORY, /* Memory in which errors have been detected */ EFI_UNUSABLE_MEMORY, /* Memory that holds the ACPI tables */ EFI_ACPI_RECLAIM_MEMORY, /* Address space reserved for use by the firmware */ EFI_ACPI_MEMORY_NVS, /* * Used by system firmware to request that a memory-mapped IO region * be mapped by the OS to a virtual address so it can be accessed by * EFI runtime services. */ EFI_MMAP_IO, /* * System memory-mapped IO region that is used to translate * memory cycles to IO cycles by the processor. */ EFI_MMAP_IO_PORT, /* * Address space reserved by the firmware for code that is * part of the processor. */ EFI_PAL_CODE, EFI_MAX_MEMORY_TYPE, EFI_TABLE_END, /* For efi_build_mem_table() */ }; /* Attribute values */ enum { EFI_MEMORY_UC_SHIFT = 0, /* uncached */ EFI_MEMORY_WC_SHIFT = 1, /* write-coalescing */ EFI_MEMORY_WT_SHIFT = 2, /* write-through */ EFI_MEMORY_WB_SHIFT = 3, /* write-back */ EFI_MEMORY_UCE_SHIFT = 4, /* uncached, exported */ EFI_MEMORY_WP_SHIFT = 12, /* write-protect */ EFI_MEMORY_RP_SHIFT = 13, /* read-protect */ EFI_MEMORY_XP_SHIFT = 14, /* execute-protect */ EFI_MEMORY_RUNTIME_SHIFT = 63, /* range requires runtime mapping */ EFI_MEMORY_RUNTIME = 1ULL << EFI_MEMORY_RUNTIME_SHIFT, EFI_MEM_DESC_VERSION = 1, }; #define EFI_PAGE_SHIFT 12 #define EFI_PAGE_SIZE (1UL << EFI_PAGE_SHIFT) |
2bb9b79d6 include/efi_api.h... |
177 |
#define EFI_PAGE_MASK (EFI_PAGE_SIZE - 1) |
867a6ac86 efi: Add start-up... |
178 179 180 181 182 183 184 185 186 |
struct efi_mem_desc { u32 type; u32 reserved; efi_physical_addr_t physical_start; efi_virtual_addr_t virtual_start; u64 num_pages; u64 attribute; }; |
4c02c11de efi_loader: provi... |
187 |
#define EFI_MEMORY_DESCRIPTOR_VERSION 1 |
867a6ac86 efi: Add start-up... |
188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 |
/* Allocation types for calls to boottime->allocate_pages*/ #define EFI_ALLOCATE_ANY_PAGES 0 #define EFI_ALLOCATE_MAX_ADDRESS 1 #define EFI_ALLOCATE_ADDRESS 2 #define EFI_MAX_ALLOCATE_TYPE 3 /* Types and defines for Time Services */ #define EFI_TIME_ADJUST_DAYLIGHT 0x1 #define EFI_TIME_IN_DAYLIGHT 0x2 #define EFI_UNSPECIFIED_TIMEZONE 0x07ff struct efi_time { u16 year; u8 month; u8 day; u8 hour; u8 minute; u8 second; u8 pad1; u32 nanosecond; s16 timezone; u8 daylight; u8 pad2; }; struct efi_time_cap { u32 resolution; u32 accuracy; u8 sets_to_zero; }; enum efi_locate_search_type { |
9f0770ff9 efi_loader: capit... |
220 221 222 |
ALL_HANDLES, BY_REGISTER_NOTIFY, BY_PROTOCOL |
867a6ac86 efi: Add start-up... |
223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 |
}; struct efi_open_protocol_info_entry { efi_handle_t agent_handle; efi_handle_t controller_handle; u32 attributes; u32 open_count; }; enum efi_entry_t { EFIET_END, /* Signals this is the last (empty) entry */ EFIET_MEMORY_MAP, /* Number of entries */ EFIET_MEMORY_COUNT, }; #define EFI_TABLE_VERSION 1 /** * struct efi_info_hdr - Header for the EFI info table * * @version: EFI_TABLE_VERSION * @hdr_size: Size of this struct in bytes * @total_size: Total size of this header plus following data * @spare: Spare space for expansion */ struct efi_info_hdr { u32 version; u32 hdr_size; u32 total_size; u32 spare[5]; }; /** * struct efi_entry_hdr - Header for a table entry * * @type: enum eft_entry_t * @size size of entry bytes excluding header and padding * @addr: address of this entry (0 if it follows the header ) * @link: size of entry including header and padding * @spare1: Spare space for expansion * @spare2: Spare space for expansion */ struct efi_entry_hdr { u32 type; u32 size; u64 addr; u32 link; u32 spare1; u64 spare2; }; /** * struct efi_entry_memmap - a memory map table passed to U-Boot * * @version: EFI's memory map table version * @desc_size: EFI's size of each memory descriptor * @spare: Spare space for expansion * @desc: An array of descriptors, each @desc_size bytes apart */ struct efi_entry_memmap { u32 version; u32 desc_size; u64 spare; struct efi_mem_desc desc[]; }; static inline struct efi_mem_desc *efi_get_next_mem_desc( struct efi_entry_memmap *map, struct efi_mem_desc *desc) { return (struct efi_mem_desc *)((ulong)desc + map->desc_size); } struct efi_priv { efi_handle_t parent_image; struct efi_device_path *device_path; struct efi_system_table *sys_table; struct efi_boot_services *boot; struct efi_runtime_services *run; bool use_pool_for_malloc; unsigned long ram_base; unsigned int image_data_type; struct efi_info_hdr *info; unsigned int info_size; void *next_hdr; }; /* Base address of the EFI image */ extern char image_base[]; |
476476e73 efi: Add support ... |
313 |
/* Start and end of U-Boot image (for payload) */ |
3dc51ab0e x86: efi: payload... |
314 |
extern char _binary_u_boot_bin_start[], _binary_u_boot_bin_end[]; |
476476e73 efi: Add support ... |
315 |
|
ad644e7c1 efi_loader: efi v... |
316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 |
/* * Variable Attributes */ #define EFI_VARIABLE_NON_VOLATILE 0x0000000000000001 #define EFI_VARIABLE_BOOTSERVICE_ACCESS 0x0000000000000002 #define EFI_VARIABLE_RUNTIME_ACCESS 0x0000000000000004 #define EFI_VARIABLE_HARDWARE_ERROR_RECORD 0x0000000000000008 #define EFI_VARIABLE_AUTHENTICATED_WRITE_ACCESS 0x0000000000000010 #define EFI_VARIABLE_TIME_BASED_AUTHENTICATED_WRITE_ACCESS 0x0000000000000020 #define EFI_VARIABLE_APPEND_WRITE 0x0000000000000040 #define EFI_VARIABLE_MASK (EFI_VARIABLE_NON_VOLATILE | \ EFI_VARIABLE_BOOTSERVICE_ACCESS | \ EFI_VARIABLE_RUNTIME_ACCESS | \ EFI_VARIABLE_HARDWARE_ERROR_RECORD | \ EFI_VARIABLE_AUTHENTICATED_WRITE_ACCESS | \ EFI_VARIABLE_TIME_BASED_AUTHENTICATED_WRITE_ACCESS | \ EFI_VARIABLE_APPEND_WRITE) |
867a6ac86 efi: Add start-up... |
334 335 336 337 338 |
/** * efi_get_sys_table() - Get access to the main EFI system table * * @return pointer to EFI system table */ |
476476e73 efi: Add support ... |
339 |
|
867a6ac86 efi: Add start-up... |
340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 |
struct efi_system_table *efi_get_sys_table(void); /** * efi_get_ram_base() - Find the base of RAM * * This is used when U-Boot is built as an EFI application. * * @return the base of RAM as known to U-Boot */ unsigned long efi_get_ram_base(void); /** * efi_init() - Set up ready for use of EFI boot services * * @priv: Pointer to our private EFI structure to fill in * @banner: Banner to display when starting * @image: The image handle passed to efi_main() * @sys_table: The EFI system table pointer passed to efi_main() */ int efi_init(struct efi_priv *priv, const char *banner, efi_handle_t image, struct efi_system_table *sys_table); /** * efi_malloc() - Allocate some memory from EFI * * @priv: Pointer to private EFI structure * @size: Number of bytes to allocate * @retp: Return EFI status result * @return pointer to memory allocated, or NULL on error */ void *efi_malloc(struct efi_priv *priv, int size, efi_status_t *retp); /** * efi_free() - Free memory allocated from EFI * * @priv: Pointer to private EFI structure * @ptr: Pointer to memory to free */ void efi_free(struct efi_priv *priv, void *ptr); /** * efi_puts() - Write out a string to the EFI console * * @priv: Pointer to private EFI structure * @str: String to write (note this is a ASCII, not unicode) */ void efi_puts(struct efi_priv *priv, const char *str); /** * efi_putc() - Write out a character to the EFI console * * @priv: Pointer to private EFI structure * @ch: Character to write (note this is not unicode) */ void efi_putc(struct efi_priv *priv, const char ch); /** * efi_info_get() - get an entry from an EFI table * * @type: Entry type to search for * @datap: Returns pointer to entry data * @sizep: Returns pointer to entry size * @return 0 if OK, -ENODATA if there is no table, -ENOENT if there is no entry * of the requested type, -EPROTONOSUPPORT if the table has the wrong version */ int efi_info_get(enum efi_entry_t type, void **datap, int *sizep); /** * efi_build_mem_table() - make a sorted copy of the memory table * * @map: Pointer to EFI memory map table * @size: Size of table in bytes * @skip_bs: True to skip boot-time memory and merge it with conventional * memory. This will significantly reduce the number of table * entries. * @return pointer to the new table. It should be freed with free() by the * caller */ void *efi_build_mem_table(struct efi_entry_memmap *map, int size, bool skip_bs); #endif /* _LINUX_EFI_H */ |