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b2441318 | 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
1da177e4 LT |
2 | #ifndef _LINUX_EFI_H |
3 | #define _LINUX_EFI_H | |
4 | ||
5 | /* | |
6 | * Extensible Firmware Interface | |
7 | * Based on 'Extensible Firmware Interface Specification' version 0.9, April 30, 1999 | |
8 | * | |
9 | * Copyright (C) 1999 VA Linux Systems | |
10 | * Copyright (C) 1999 Walt Drummond <drummond@valinux.com> | |
11 | * Copyright (C) 1999, 2002-2003 Hewlett-Packard Co. | |
12 | * David Mosberger-Tang <davidm@hpl.hp.com> | |
13 | * Stephane Eranian <eranian@hpl.hp.com> | |
14 | */ | |
15 | #include <linux/init.h> | |
16 | #include <linux/string.h> | |
17 | #include <linux/time.h> | |
18 | #include <linux/types.h> | |
19 | #include <linux/proc_fs.h> | |
20 | #include <linux/rtc.h> | |
21 | #include <linux/ioport.h> | |
4a3575fd | 22 | #include <linux/pfn.h> |
5ee9c198 | 23 | #include <linux/pstore.h> |
60863c0d | 24 | #include <linux/range.h> |
8562c99c | 25 | #include <linux/reboot.h> |
ba7e34b1 | 26 | #include <linux/uuid.h> |
2c23b73c | 27 | #include <linux/screen_info.h> |
1da177e4 LT |
28 | |
29 | #include <asm/page.h> | |
1da177e4 LT |
30 | |
31 | #define EFI_SUCCESS 0 | |
32 | #define EFI_LOAD_ERROR ( 1 | (1UL << (BITS_PER_LONG-1))) | |
33 | #define EFI_INVALID_PARAMETER ( 2 | (1UL << (BITS_PER_LONG-1))) | |
34 | #define EFI_UNSUPPORTED ( 3 | (1UL << (BITS_PER_LONG-1))) | |
35 | #define EFI_BAD_BUFFER_SIZE ( 4 | (1UL << (BITS_PER_LONG-1))) | |
36 | #define EFI_BUFFER_TOO_SMALL ( 5 | (1UL << (BITS_PER_LONG-1))) | |
5d9db883 MG |
37 | #define EFI_NOT_READY ( 6 | (1UL << (BITS_PER_LONG-1))) |
38 | #define EFI_DEVICE_ERROR ( 7 | (1UL << (BITS_PER_LONG-1))) | |
39 | #define EFI_WRITE_PROTECTED ( 8 | (1UL << (BITS_PER_LONG-1))) | |
40 | #define EFI_OUT_OF_RESOURCES ( 9 | (1UL << (BITS_PER_LONG-1))) | |
1da177e4 | 41 | #define EFI_NOT_FOUND (14 | (1UL << (BITS_PER_LONG-1))) |
dce48e35 | 42 | #define EFI_ABORTED (21 | (1UL << (BITS_PER_LONG-1))) |
5d9db883 | 43 | #define EFI_SECURITY_VIOLATION (26 | (1UL << (BITS_PER_LONG-1))) |
1da177e4 LT |
44 | |
45 | typedef unsigned long efi_status_t; | |
46 | typedef u8 efi_bool_t; | |
47 | typedef u16 efi_char16_t; /* UNICODE character */ | |
ed37ddff RF |
48 | typedef u64 efi_physical_addr_t; |
49 | typedef void *efi_handle_t; | |
1da177e4 | 50 | |
2732ea0d AB |
51 | #define efi_get_handle_at(array, idx) \ |
52 | (efi_is_64bit() ? (efi_handle_t)(unsigned long)((u64 *)(array))[idx] \ | |
53 | : (efi_handle_t)(unsigned long)((u32 *)(array))[idx]) | |
54 | ||
55 | #define efi_get_handle_num(size) \ | |
56 | ((size) / (efi_is_64bit() ? sizeof(u64) : sizeof(u32))) | |
57 | ||
58 | #define for_each_efi_handle(handle, array, size, i) \ | |
59 | for (i = 0; \ | |
60 | i < efi_get_handle_num(size) && \ | |
61 | ((handle = efi_get_handle_at((array), i)) || true); \ | |
62 | i++) | |
63 | ||
494c704f AB |
64 | /* |
65 | * The UEFI spec and EDK2 reference implementation both define EFI_GUID as | |
66 | * struct { u32 a; u16; b; u16 c; u8 d[8]; }; and so the implied alignment | |
67 | * is 32 bits not 8 bits like our guid_t. In some cases (i.e., on 32-bit ARM), | |
68 | * this means that firmware services invoked by the kernel may assume that | |
69 | * efi_guid_t* arguments are 32-bit aligned, and use memory accessors that | |
70 | * do not tolerate misalignment. So let's set the minimum alignment to 32 bits. | |
71 | * | |
72 | * Note that the UEFI spec as well as some comments in the EDK2 code base | |
73 | * suggest that EFI_GUID should be 64-bit aligned, but this appears to be | |
74 | * a mistake, given that no code seems to exist that actually enforces that | |
75 | * or relies on it. | |
76 | */ | |
77 | typedef guid_t efi_guid_t __aligned(__alignof__(u32)); | |
1da177e4 LT |
78 | |
79 | #define EFI_GUID(a,b,c,d0,d1,d2,d3,d4,d5,d6,d7) \ | |
c0020756 | 80 | GUID_INIT(a, b, c, d0, d1, d2, d3, d4, d5, d6, d7) |
1da177e4 LT |
81 | |
82 | /* | |
83 | * Generic EFI table header | |
84 | */ | |
85 | typedef struct { | |
86 | u64 signature; | |
87 | u32 revision; | |
88 | u32 headersize; | |
89 | u32 crc32; | |
90 | u32 reserved; | |
91 | } efi_table_hdr_t; | |
92 | ||
93 | /* | |
94 | * Memory map descriptor: | |
95 | */ | |
96 | ||
97 | /* Memory types: */ | |
98 | #define EFI_RESERVED_TYPE 0 | |
99 | #define EFI_LOADER_CODE 1 | |
100 | #define EFI_LOADER_DATA 2 | |
101 | #define EFI_BOOT_SERVICES_CODE 3 | |
102 | #define EFI_BOOT_SERVICES_DATA 4 | |
103 | #define EFI_RUNTIME_SERVICES_CODE 5 | |
104 | #define EFI_RUNTIME_SERVICES_DATA 6 | |
105 | #define EFI_CONVENTIONAL_MEMORY 7 | |
106 | #define EFI_UNUSABLE_MEMORY 8 | |
107 | #define EFI_ACPI_RECLAIM_MEMORY 9 | |
108 | #define EFI_ACPI_MEMORY_NVS 10 | |
109 | #define EFI_MEMORY_MAPPED_IO 11 | |
110 | #define EFI_MEMORY_MAPPED_IO_PORT_SPACE 12 | |
111 | #define EFI_PAL_CODE 13 | |
ad5fb870 DW |
112 | #define EFI_PERSISTENT_MEMORY 14 |
113 | #define EFI_MAX_MEMORY_TYPE 15 | |
1da177e4 LT |
114 | |
115 | /* Attribute values: */ | |
116 | #define EFI_MEMORY_UC ((u64)0x0000000000000001ULL) /* uncached */ | |
117 | #define EFI_MEMORY_WC ((u64)0x0000000000000002ULL) /* write-coalescing */ | |
118 | #define EFI_MEMORY_WT ((u64)0x0000000000000004ULL) /* write-through */ | |
119 | #define EFI_MEMORY_WB ((u64)0x0000000000000008ULL) /* write-back */ | |
9c97e0bd | 120 | #define EFI_MEMORY_UCE ((u64)0x0000000000000010ULL) /* uncached, exported */ |
1da177e4 LT |
121 | #define EFI_MEMORY_WP ((u64)0x0000000000001000ULL) /* write-protect */ |
122 | #define EFI_MEMORY_RP ((u64)0x0000000000002000ULL) /* read-protect */ | |
123 | #define EFI_MEMORY_XP ((u64)0x0000000000004000ULL) /* execute-protect */ | |
c016ca08 | 124 | #define EFI_MEMORY_NV ((u64)0x0000000000008000ULL) /* non-volatile */ |
b05b9f5f TL |
125 | #define EFI_MEMORY_MORE_RELIABLE \ |
126 | ((u64)0x0000000000010000ULL) /* higher reliability */ | |
87db73ae | 127 | #define EFI_MEMORY_RO ((u64)0x0000000000020000ULL) /* read-only */ |
fe3e5e65 | 128 | #define EFI_MEMORY_SP ((u64)0x0000000000040000ULL) /* soft reserved */ |
1da177e4 LT |
129 | #define EFI_MEMORY_RUNTIME ((u64)0x8000000000000000ULL) /* range requires runtime mapping */ |
130 | #define EFI_MEMORY_DESCRIPTOR_VERSION 1 | |
131 | ||
132 | #define EFI_PAGE_SHIFT 12 | |
ed37ddff | 133 | #define EFI_PAGE_SIZE (1UL << EFI_PAGE_SHIFT) |
0100a3e6 | 134 | #define EFI_PAGES_MAX (U64_MAX >> EFI_PAGE_SHIFT) |
1da177e4 | 135 | |
1da177e4 LT |
136 | typedef struct { |
137 | u32 type; | |
138 | u32 pad; | |
139 | u64 phys_addr; | |
140 | u64 virt_addr; | |
141 | u64 num_pages; | |
142 | u64 attribute; | |
1da177e4 LT |
143 | } efi_memory_desc_t; |
144 | ||
3b370237 MG |
145 | typedef struct { |
146 | efi_guid_t guid; | |
147 | u32 headersize; | |
148 | u32 flags; | |
149 | u32 imagesize; | |
150 | } efi_capsule_header_t; | |
151 | ||
dadb57ab JH |
152 | struct efi_boot_memmap { |
153 | efi_memory_desc_t **map; | |
154 | unsigned long *map_size; | |
155 | unsigned long *desc_size; | |
156 | u32 *desc_ver; | |
157 | unsigned long *key_ptr; | |
158 | unsigned long *buff_size; | |
159 | }; | |
160 | ||
f0133f3c MF |
161 | /* |
162 | * EFI capsule flags | |
163 | */ | |
164 | #define EFI_CAPSULE_PERSIST_ACROSS_RESET 0x00010000 | |
165 | #define EFI_CAPSULE_POPULATE_SYSTEM_TABLE 0x00020000 | |
166 | #define EFI_CAPSULE_INITIATE_RESET 0x00040000 | |
167 | ||
3fabd628 AB |
168 | struct capsule_info { |
169 | efi_capsule_header_t header; | |
f24c4d47 | 170 | efi_capsule_header_t *capsule; |
3fabd628 AB |
171 | int reset_type; |
172 | long index; | |
173 | size_t count; | |
174 | size_t total_size; | |
f24c4d47 AB |
175 | struct page **pages; |
176 | phys_addr_t *phys; | |
3fabd628 AB |
177 | size_t page_bytes_remain; |
178 | }; | |
179 | ||
180 | int __efi_capsule_setup_info(struct capsule_info *cap_info); | |
181 | ||
bb05e4ba MF |
182 | /* |
183 | * Allocation types for calls to boottime->allocate_pages. | |
184 | */ | |
185 | #define EFI_ALLOCATE_ANY_PAGES 0 | |
186 | #define EFI_ALLOCATE_MAX_ADDRESS 1 | |
187 | #define EFI_ALLOCATE_ADDRESS 2 | |
188 | #define EFI_MAX_ALLOCATE_TYPE 3 | |
189 | ||
e088a4ad | 190 | typedef int (*efi_freemem_callback_t) (u64 start, u64 end, void *arg); |
1da177e4 LT |
191 | |
192 | /* | |
193 | * Types and defines for Time Services | |
194 | */ | |
195 | #define EFI_TIME_ADJUST_DAYLIGHT 0x1 | |
196 | #define EFI_TIME_IN_DAYLIGHT 0x2 | |
197 | #define EFI_UNSPECIFIED_TIMEZONE 0x07ff | |
198 | ||
199 | typedef struct { | |
200 | u16 year; | |
201 | u8 month; | |
202 | u8 day; | |
203 | u8 hour; | |
204 | u8 minute; | |
205 | u8 second; | |
206 | u8 pad1; | |
207 | u32 nanosecond; | |
208 | s16 timezone; | |
209 | u8 daylight; | |
210 | u8 pad2; | |
211 | } efi_time_t; | |
212 | ||
213 | typedef struct { | |
214 | u32 resolution; | |
215 | u32 accuracy; | |
216 | u8 sets_to_zero; | |
217 | } efi_time_cap_t; | |
218 | ||
677703ce MF |
219 | typedef struct { |
220 | efi_table_hdr_t hdr; | |
221 | u32 raise_tpl; | |
222 | u32 restore_tpl; | |
223 | u32 allocate_pages; | |
224 | u32 free_pages; | |
225 | u32 get_memory_map; | |
226 | u32 allocate_pool; | |
227 | u32 free_pool; | |
228 | u32 create_event; | |
229 | u32 set_timer; | |
230 | u32 wait_for_event; | |
231 | u32 signal_event; | |
232 | u32 close_event; | |
233 | u32 check_event; | |
234 | u32 install_protocol_interface; | |
235 | u32 reinstall_protocol_interface; | |
236 | u32 uninstall_protocol_interface; | |
237 | u32 handle_protocol; | |
238 | u32 __reserved; | |
239 | u32 register_protocol_notify; | |
240 | u32 locate_handle; | |
241 | u32 locate_device_path; | |
242 | u32 install_configuration_table; | |
243 | u32 load_image; | |
244 | u32 start_image; | |
245 | u32 exit; | |
246 | u32 unload_image; | |
247 | u32 exit_boot_services; | |
248 | u32 get_next_monotonic_count; | |
249 | u32 stall; | |
250 | u32 set_watchdog_timer; | |
251 | u32 connect_controller; | |
252 | u32 disconnect_controller; | |
253 | u32 open_protocol; | |
254 | u32 close_protocol; | |
255 | u32 open_protocol_information; | |
256 | u32 protocols_per_handle; | |
257 | u32 locate_handle_buffer; | |
258 | u32 locate_protocol; | |
259 | u32 install_multiple_protocol_interfaces; | |
260 | u32 uninstall_multiple_protocol_interfaces; | |
261 | u32 calculate_crc32; | |
262 | u32 copy_mem; | |
263 | u32 set_mem; | |
264 | u32 create_event_ex; | |
265 | } __packed efi_boot_services_32_t; | |
266 | ||
267 | typedef struct { | |
268 | efi_table_hdr_t hdr; | |
269 | u64 raise_tpl; | |
270 | u64 restore_tpl; | |
271 | u64 allocate_pages; | |
272 | u64 free_pages; | |
273 | u64 get_memory_map; | |
274 | u64 allocate_pool; | |
275 | u64 free_pool; | |
276 | u64 create_event; | |
277 | u64 set_timer; | |
278 | u64 wait_for_event; | |
279 | u64 signal_event; | |
280 | u64 close_event; | |
281 | u64 check_event; | |
282 | u64 install_protocol_interface; | |
283 | u64 reinstall_protocol_interface; | |
284 | u64 uninstall_protocol_interface; | |
285 | u64 handle_protocol; | |
286 | u64 __reserved; | |
287 | u64 register_protocol_notify; | |
288 | u64 locate_handle; | |
289 | u64 locate_device_path; | |
290 | u64 install_configuration_table; | |
291 | u64 load_image; | |
292 | u64 start_image; | |
293 | u64 exit; | |
294 | u64 unload_image; | |
295 | u64 exit_boot_services; | |
296 | u64 get_next_monotonic_count; | |
297 | u64 stall; | |
298 | u64 set_watchdog_timer; | |
299 | u64 connect_controller; | |
300 | u64 disconnect_controller; | |
301 | u64 open_protocol; | |
302 | u64 close_protocol; | |
303 | u64 open_protocol_information; | |
304 | u64 protocols_per_handle; | |
305 | u64 locate_handle_buffer; | |
306 | u64 locate_protocol; | |
307 | u64 install_multiple_protocol_interfaces; | |
308 | u64 uninstall_multiple_protocol_interfaces; | |
309 | u64 calculate_crc32; | |
310 | u64 copy_mem; | |
311 | u64 set_mem; | |
312 | u64 create_event_ex; | |
313 | } __packed efi_boot_services_64_t; | |
314 | ||
f30ca6ba MF |
315 | /* |
316 | * EFI Boot Services table | |
317 | */ | |
1786e830 AB |
318 | typedef union { |
319 | struct { | |
320 | efi_table_hdr_t hdr; | |
321 | void *raise_tpl; | |
322 | void *restore_tpl; | |
323 | efi_status_t (*allocate_pages)(int, int, unsigned long, | |
324 | efi_physical_addr_t *); | |
325 | efi_status_t (*free_pages)(efi_physical_addr_t, unsigned long); | |
326 | efi_status_t (*get_memory_map)(unsigned long *, void *, unsigned long *, | |
327 | unsigned long *, u32 *); | |
328 | efi_status_t (*allocate_pool)(int, unsigned long, void **); | |
329 | efi_status_t (*free_pool)(void *); | |
330 | void *create_event; | |
331 | void *set_timer; | |
332 | void *wait_for_event; | |
333 | void *signal_event; | |
334 | void *close_event; | |
335 | void *check_event; | |
336 | void *install_protocol_interface; | |
337 | void *reinstall_protocol_interface; | |
338 | void *uninstall_protocol_interface; | |
339 | efi_status_t (*handle_protocol)(efi_handle_t, efi_guid_t *, void **); | |
340 | void *__reserved; | |
341 | void *register_protocol_notify; | |
342 | efi_status_t (*locate_handle)(int, efi_guid_t *, void *, | |
343 | unsigned long *, efi_handle_t *); | |
344 | void *locate_device_path; | |
345 | efi_status_t (*install_configuration_table)(efi_guid_t *, void *); | |
346 | void *load_image; | |
347 | void *start_image; | |
348 | void *exit; | |
349 | void *unload_image; | |
350 | efi_status_t (*exit_boot_services)(efi_handle_t, unsigned long); | |
351 | void *get_next_monotonic_count; | |
352 | void *stall; | |
353 | void *set_watchdog_timer; | |
354 | void *connect_controller; | |
355 | void *disconnect_controller; | |
356 | void *open_protocol; | |
357 | void *close_protocol; | |
358 | void *open_protocol_information; | |
359 | void *protocols_per_handle; | |
360 | void *locate_handle_buffer; | |
361 | efi_status_t (*locate_protocol)(efi_guid_t *, void *, void **); | |
362 | void *install_multiple_protocol_interfaces; | |
363 | void *uninstall_multiple_protocol_interfaces; | |
364 | void *calculate_crc32; | |
365 | void *copy_mem; | |
366 | void *set_mem; | |
367 | void *create_event_ex; | |
368 | }; | |
369 | efi_boot_services_32_t mixed_mode; | |
f30ca6ba MF |
370 | } efi_boot_services_t; |
371 | ||
dd5fc854 MG |
372 | typedef enum { |
373 | EfiPciIoWidthUint8, | |
374 | EfiPciIoWidthUint16, | |
375 | EfiPciIoWidthUint32, | |
376 | EfiPciIoWidthUint64, | |
377 | EfiPciIoWidthFifoUint8, | |
378 | EfiPciIoWidthFifoUint16, | |
379 | EfiPciIoWidthFifoUint32, | |
380 | EfiPciIoWidthFifoUint64, | |
381 | EfiPciIoWidthFillUint8, | |
382 | EfiPciIoWidthFillUint16, | |
383 | EfiPciIoWidthFillUint32, | |
384 | EfiPciIoWidthFillUint64, | |
385 | EfiPciIoWidthMaximum | |
386 | } EFI_PCI_IO_PROTOCOL_WIDTH; | |
387 | ||
388 | typedef enum { | |
389 | EfiPciIoAttributeOperationGet, | |
390 | EfiPciIoAttributeOperationSet, | |
391 | EfiPciIoAttributeOperationEnable, | |
392 | EfiPciIoAttributeOperationDisable, | |
393 | EfiPciIoAttributeOperationSupported, | |
394 | EfiPciIoAttributeOperationMaximum | |
395 | } EFI_PCI_IO_PROTOCOL_ATTRIBUTE_OPERATION; | |
396 | ||
677703ce MF |
397 | typedef struct { |
398 | u32 read; | |
399 | u32 write; | |
400 | } efi_pci_io_protocol_access_32_t; | |
401 | ||
402 | typedef struct { | |
403 | u64 read; | |
404 | u64 write; | |
405 | } efi_pci_io_protocol_access_64_t; | |
dd5fc854 | 406 | |
1786e830 AB |
407 | typedef union efi_pci_io_protocol efi_pci_io_protocol_t; |
408 | ||
409 | typedef | |
410 | efi_status_t (*efi_pci_io_protocol_cfg_t)(efi_pci_io_protocol_t *, | |
411 | EFI_PCI_IO_PROTOCOL_WIDTH, | |
412 | u32 offset, unsigned long count, | |
413 | void *buffer); | |
414 | ||
dd5fc854 MG |
415 | typedef struct { |
416 | void *read; | |
417 | void *write; | |
418 | } efi_pci_io_protocol_access_t; | |
419 | ||
1786e830 AB |
420 | typedef struct { |
421 | efi_pci_io_protocol_cfg_t read; | |
422 | efi_pci_io_protocol_cfg_t write; | |
423 | } efi_pci_io_protocol_config_access_t; | |
424 | ||
677703ce MF |
425 | typedef struct { |
426 | u32 poll_mem; | |
427 | u32 poll_io; | |
428 | efi_pci_io_protocol_access_32_t mem; | |
429 | efi_pci_io_protocol_access_32_t io; | |
430 | efi_pci_io_protocol_access_32_t pci; | |
431 | u32 copy_mem; | |
432 | u32 map; | |
433 | u32 unmap; | |
434 | u32 allocate_buffer; | |
435 | u32 free_buffer; | |
436 | u32 flush; | |
437 | u32 get_location; | |
438 | u32 attributes; | |
439 | u32 get_bar_attributes; | |
440 | u32 set_bar_attributes; | |
0b3225ab AB |
441 | u64 romsize; |
442 | u32 romimage; | |
cb0ba793 | 443 | } efi_pci_io_protocol_32_t; |
677703ce MF |
444 | |
445 | typedef struct { | |
446 | u64 poll_mem; | |
447 | u64 poll_io; | |
448 | efi_pci_io_protocol_access_64_t mem; | |
449 | efi_pci_io_protocol_access_64_t io; | |
450 | efi_pci_io_protocol_access_64_t pci; | |
451 | u64 copy_mem; | |
452 | u64 map; | |
453 | u64 unmap; | |
454 | u64 allocate_buffer; | |
455 | u64 free_buffer; | |
456 | u64 flush; | |
457 | u64 get_location; | |
458 | u64 attributes; | |
459 | u64 get_bar_attributes; | |
460 | u64 set_bar_attributes; | |
0b3225ab AB |
461 | u64 romsize; |
462 | u64 romimage; | |
cb0ba793 | 463 | } efi_pci_io_protocol_64_t; |
677703ce | 464 | |
1786e830 AB |
465 | union efi_pci_io_protocol { |
466 | struct { | |
467 | void *poll_mem; | |
468 | void *poll_io; | |
469 | efi_pci_io_protocol_access_t mem; | |
470 | efi_pci_io_protocol_access_t io; | |
471 | efi_pci_io_protocol_config_access_t pci; | |
472 | void *copy_mem; | |
473 | void *map; | |
474 | void *unmap; | |
475 | void *allocate_buffer; | |
476 | void *free_buffer; | |
477 | void *flush; | |
478 | void *get_location; | |
479 | void *attributes; | |
480 | void *get_bar_attributes; | |
481 | void *set_bar_attributes; | |
482 | uint64_t romsize; | |
483 | void *romimage; | |
484 | }; | |
485 | struct { | |
486 | u32 poll_mem; | |
487 | u32 poll_io; | |
488 | efi_pci_io_protocol_access_32_t mem; | |
489 | efi_pci_io_protocol_access_32_t io; | |
490 | efi_pci_io_protocol_access_32_t pci; | |
491 | u32 copy_mem; | |
492 | u32 map; | |
493 | u32 unmap; | |
494 | u32 allocate_buffer; | |
495 | u32 free_buffer; | |
496 | u32 flush; | |
497 | u32 get_location; | |
498 | u32 attributes; | |
499 | u32 get_bar_attributes; | |
500 | u32 set_bar_attributes; | |
501 | u64 romsize; | |
502 | u32 romimage; | |
503 | } mixed_mode; | |
504 | }; | |
dd5fc854 MG |
505 | |
506 | #define EFI_PCI_IO_ATTRIBUTE_ISA_MOTHERBOARD_IO 0x0001 | |
507 | #define EFI_PCI_IO_ATTRIBUTE_ISA_IO 0x0002 | |
508 | #define EFI_PCI_IO_ATTRIBUTE_VGA_PALETTE_IO 0x0004 | |
509 | #define EFI_PCI_IO_ATTRIBUTE_VGA_MEMORY 0x0008 | |
510 | #define EFI_PCI_IO_ATTRIBUTE_VGA_IO 0x0010 | |
511 | #define EFI_PCI_IO_ATTRIBUTE_IDE_PRIMARY_IO 0x0020 | |
512 | #define EFI_PCI_IO_ATTRIBUTE_IDE_SECONDARY_IO 0x0040 | |
513 | #define EFI_PCI_IO_ATTRIBUTE_MEMORY_WRITE_COMBINE 0x0080 | |
514 | #define EFI_PCI_IO_ATTRIBUTE_IO 0x0100 | |
515 | #define EFI_PCI_IO_ATTRIBUTE_MEMORY 0x0200 | |
516 | #define EFI_PCI_IO_ATTRIBUTE_BUS_MASTER 0x0400 | |
517 | #define EFI_PCI_IO_ATTRIBUTE_MEMORY_CACHED 0x0800 | |
518 | #define EFI_PCI_IO_ATTRIBUTE_MEMORY_DISABLE 0x1000 | |
519 | #define EFI_PCI_IO_ATTRIBUTE_EMBEDDED_DEVICE 0x2000 | |
520 | #define EFI_PCI_IO_ATTRIBUTE_EMBEDDED_ROM 0x4000 | |
521 | #define EFI_PCI_IO_ATTRIBUTE_DUAL_ADDRESS_CYCLE 0x8000 | |
522 | #define EFI_PCI_IO_ATTRIBUTE_ISA_IO_16 0x10000 | |
523 | #define EFI_PCI_IO_ATTRIBUTE_VGA_PALETTE_IO_16 0x20000 | |
524 | #define EFI_PCI_IO_ATTRIBUTE_VGA_IO_16 0x40000 | |
525 | ||
58c5475a LW |
526 | typedef struct { |
527 | u32 version; | |
528 | u32 get; | |
529 | u32 set; | |
530 | u32 del; | |
531 | u32 get_all; | |
532 | } apple_properties_protocol_32_t; | |
533 | ||
534 | typedef struct { | |
535 | u64 version; | |
536 | u64 get; | |
537 | u64 set; | |
538 | u64 del; | |
539 | u64 get_all; | |
540 | } apple_properties_protocol_64_t; | |
541 | ||
1786e830 AB |
542 | struct efi_dev_path; |
543 | ||
544 | typedef union apple_properties_protocol apple_properties_protocol_t; | |
545 | ||
546 | union apple_properties_protocol { | |
547 | struct { | |
548 | unsigned long version; | |
549 | efi_status_t (*get)(apple_properties_protocol_t *, | |
550 | struct efi_dev_path *, efi_char16_t *, | |
551 | void *, u32 *); | |
552 | efi_status_t (*set)(apple_properties_protocol_t *, | |
553 | struct efi_dev_path *, efi_char16_t *, | |
554 | void *, u32); | |
555 | efi_status_t (*del)(apple_properties_protocol_t *, | |
556 | struct efi_dev_path *, efi_char16_t *); | |
557 | efi_status_t (*get_all)(apple_properties_protocol_t *, | |
558 | void *buffer, u32 *); | |
559 | }; | |
560 | struct { | |
561 | u32 version; | |
562 | u32 get; | |
563 | u32 set; | |
564 | u32 del; | |
565 | u32 get_all; | |
566 | } mixed_mode; | |
567 | }; | |
568 | ||
33b6d034 TW |
569 | typedef struct { |
570 | u32 get_capability; | |
571 | u32 get_event_log; | |
572 | u32 hash_log_extend_event; | |
573 | u32 submit_command; | |
574 | u32 get_active_pcr_banks; | |
575 | u32 set_active_pcr_banks; | |
576 | u32 get_result_of_set_active_pcr_banks; | |
577 | } efi_tcg2_protocol_32_t; | |
578 | ||
579 | typedef struct { | |
580 | u64 get_capability; | |
581 | u64 get_event_log; | |
582 | u64 hash_log_extend_event; | |
583 | u64 submit_command; | |
584 | u64 get_active_pcr_banks; | |
585 | u64 set_active_pcr_banks; | |
586 | u64 get_result_of_set_active_pcr_banks; | |
587 | } efi_tcg2_protocol_64_t; | |
588 | ||
589 | typedef u32 efi_tcg2_event_log_format; | |
590 | ||
1786e830 AB |
591 | typedef union efi_tcg2_protocol efi_tcg2_protocol_t; |
592 | ||
593 | union efi_tcg2_protocol { | |
594 | struct { | |
595 | void *get_capability; | |
596 | efi_status_t (*get_event_log)(efi_handle_t, | |
597 | efi_tcg2_event_log_format, | |
598 | efi_physical_addr_t *, | |
599 | efi_physical_addr_t *, | |
600 | efi_bool_t *); | |
601 | void *hash_log_extend_event; | |
602 | void *submit_command; | |
603 | void *get_active_pcr_banks; | |
604 | void *set_active_pcr_banks; | |
605 | void *get_result_of_set_active_pcr_banks; | |
606 | }; | |
607 | struct { | |
608 | u32 get_capability; | |
609 | u32 get_event_log; | |
610 | u32 hash_log_extend_event; | |
611 | u32 submit_command; | |
612 | u32 get_active_pcr_banks; | |
613 | u32 set_active_pcr_banks; | |
614 | u32 get_result_of_set_active_pcr_banks; | |
615 | } mixed_mode; | |
616 | }; | |
33b6d034 | 617 | |
1da177e4 LT |
618 | /* |
619 | * Types and defines for EFI ResetSystem | |
620 | */ | |
621 | #define EFI_RESET_COLD 0 | |
622 | #define EFI_RESET_WARM 1 | |
623 | #define EFI_RESET_SHUTDOWN 2 | |
624 | ||
625 | /* | |
626 | * EFI Runtime Services table | |
627 | */ | |
628 | #define EFI_RUNTIME_SERVICES_SIGNATURE ((u64)0x5652453544e5552ULL) | |
629 | #define EFI_RUNTIME_SERVICES_REVISION 0x00010000 | |
630 | ||
677703ce MF |
631 | typedef struct { |
632 | efi_table_hdr_t hdr; | |
633 | u32 get_time; | |
634 | u32 set_time; | |
635 | u32 get_wakeup_time; | |
636 | u32 set_wakeup_time; | |
637 | u32 set_virtual_address_map; | |
638 | u32 convert_pointer; | |
639 | u32 get_variable; | |
640 | u32 get_next_variable; | |
641 | u32 set_variable; | |
642 | u32 get_next_high_mono_count; | |
643 | u32 reset_system; | |
644 | u32 update_capsule; | |
645 | u32 query_capsule_caps; | |
646 | u32 query_variable_info; | |
647 | } efi_runtime_services_32_t; | |
648 | ||
649 | typedef struct { | |
650 | efi_table_hdr_t hdr; | |
651 | u64 get_time; | |
652 | u64 set_time; | |
653 | u64 get_wakeup_time; | |
654 | u64 set_wakeup_time; | |
655 | u64 set_virtual_address_map; | |
656 | u64 convert_pointer; | |
657 | u64 get_variable; | |
658 | u64 get_next_variable; | |
659 | u64 set_variable; | |
660 | u64 get_next_high_mono_count; | |
661 | u64 reset_system; | |
662 | u64 update_capsule; | |
663 | u64 query_capsule_caps; | |
664 | u64 query_variable_info; | |
665 | } efi_runtime_services_64_t; | |
666 | ||
1da177e4 LT |
667 | typedef efi_status_t efi_get_time_t (efi_time_t *tm, efi_time_cap_t *tc); |
668 | typedef efi_status_t efi_set_time_t (efi_time_t *tm); | |
669 | typedef efi_status_t efi_get_wakeup_time_t (efi_bool_t *enabled, efi_bool_t *pending, | |
670 | efi_time_t *tm); | |
671 | typedef efi_status_t efi_set_wakeup_time_t (efi_bool_t enabled, efi_time_t *tm); | |
672 | typedef efi_status_t efi_get_variable_t (efi_char16_t *name, efi_guid_t *vendor, u32 *attr, | |
673 | unsigned long *data_size, void *data); | |
674 | typedef efi_status_t efi_get_next_variable_t (unsigned long *name_size, efi_char16_t *name, | |
675 | efi_guid_t *vendor); | |
676 | typedef efi_status_t efi_set_variable_t (efi_char16_t *name, efi_guid_t *vendor, | |
f7a2d73f | 677 | u32 attr, unsigned long data_size, |
1da177e4 LT |
678 | void *data); |
679 | typedef efi_status_t efi_get_next_high_mono_count_t (u32 *count); | |
680 | typedef void efi_reset_system_t (int reset_type, efi_status_t status, | |
681 | unsigned long data_size, efi_char16_t *data); | |
682 | typedef efi_status_t efi_set_virtual_address_map_t (unsigned long memory_map_size, | |
683 | unsigned long descriptor_size, | |
684 | u32 descriptor_version, | |
685 | efi_memory_desc_t *virtual_map); | |
3b370237 MG |
686 | typedef efi_status_t efi_query_variable_info_t(u32 attr, |
687 | u64 *storage_space, | |
688 | u64 *remaining_space, | |
689 | u64 *max_variable_size); | |
690 | typedef efi_status_t efi_update_capsule_t(efi_capsule_header_t **capsules, | |
691 | unsigned long count, | |
692 | unsigned long sg_list); | |
693 | typedef efi_status_t efi_query_capsule_caps_t(efi_capsule_header_t **capsules, | |
694 | unsigned long count, | |
695 | u64 *max_size, | |
696 | int *reset_type); | |
ca0e30dc AB |
697 | typedef efi_status_t efi_query_variable_store_t(u32 attributes, |
698 | unsigned long size, | |
699 | bool nonblocking); | |
1da177e4 | 700 | |
1786e830 AB |
701 | typedef union { |
702 | struct { | |
703 | efi_table_hdr_t hdr; | |
704 | efi_get_time_t *get_time; | |
705 | efi_set_time_t *set_time; | |
706 | efi_get_wakeup_time_t *get_wakeup_time; | |
707 | efi_set_wakeup_time_t *set_wakeup_time; | |
708 | efi_set_virtual_address_map_t *set_virtual_address_map; | |
709 | void *convert_pointer; | |
710 | efi_get_variable_t *get_variable; | |
711 | efi_get_next_variable_t *get_next_variable; | |
712 | efi_set_variable_t *set_variable; | |
713 | efi_get_next_high_mono_count_t *get_next_high_mono_count; | |
714 | efi_reset_system_t *reset_system; | |
715 | efi_update_capsule_t *update_capsule; | |
716 | efi_query_capsule_caps_t *query_capsule_caps; | |
717 | efi_query_variable_info_t *query_variable_info; | |
718 | }; | |
719 | efi_runtime_services_32_t mixed_mode; | |
c4c39c70 AB |
720 | } efi_runtime_services_t; |
721 | ||
022ee6c5 AB |
722 | void efi_native_runtime_setup(void); |
723 | ||
1da177e4 | 724 | /* |
54fd11fe PJ |
725 | * EFI Configuration Table and GUID definitions |
726 | * | |
7fb2b43c IM |
727 | * These are all defined in a single line to make them easier to |
728 | * grep for and to see them at a glance - while still having a | |
729 | * similar structure to the definitions in the spec. | |
730 | * | |
731 | * Here's how they are structured: | |
54fd11fe PJ |
732 | * |
733 | * GUID: 12345678-1234-1234-1234-123456789012 | |
734 | * Spec: | |
735 | * #define EFI_SOME_PROTOCOL_GUID \ | |
736 | * {0x12345678,0x1234,0x1234,\ | |
737 | * {0x12,0x34,0x12,0x34,0x56,0x78,0x90,0x12}} | |
738 | * Here: | |
7fb2b43c IM |
739 | * #define SOME_PROTOCOL_GUID EFI_GUID(0x12345678, 0x1234, 0x1234, 0x12, 0x34, 0x12, 0x34, 0x56, 0x78, 0x90, 0x12) |
740 | * ^ tabs ^extra space | |
741 | * | |
742 | * Note that the 'extra space' separates the values at the same place | |
743 | * where the UEFI SPEC breaks the line. | |
1da177e4 | 744 | */ |
7fb2b43c IM |
745 | #define NULL_GUID EFI_GUID(0x00000000, 0x0000, 0x0000, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00) |
746 | #define MPS_TABLE_GUID EFI_GUID(0xeb9d2d2f, 0x2d88, 0x11d3, 0x9a, 0x16, 0x00, 0x90, 0x27, 0x3f, 0xc1, 0x4d) | |
747 | #define ACPI_TABLE_GUID EFI_GUID(0xeb9d2d30, 0x2d88, 0x11d3, 0x9a, 0x16, 0x00, 0x90, 0x27, 0x3f, 0xc1, 0x4d) | |
748 | #define ACPI_20_TABLE_GUID EFI_GUID(0x8868e871, 0xe4f1, 0x11d3, 0xbc, 0x22, 0x00, 0x80, 0xc7, 0x3c, 0x88, 0x81) | |
749 | #define SMBIOS_TABLE_GUID EFI_GUID(0xeb9d2d31, 0x2d88, 0x11d3, 0x9a, 0x16, 0x00, 0x90, 0x27, 0x3f, 0xc1, 0x4d) | |
750 | #define SMBIOS3_TABLE_GUID EFI_GUID(0xf2fd1544, 0x9794, 0x4a2c, 0x99, 0x2e, 0xe5, 0xbb, 0xcf, 0x20, 0xe3, 0x94) | |
751 | #define SAL_SYSTEM_TABLE_GUID EFI_GUID(0xeb9d2d32, 0x2d88, 0x11d3, 0x9a, 0x16, 0x00, 0x90, 0x27, 0x3f, 0xc1, 0x4d) | |
752 | #define HCDP_TABLE_GUID EFI_GUID(0xf951938d, 0x620b, 0x42ef, 0x82, 0x79, 0xa8, 0x4b, 0x79, 0x61, 0x78, 0x98) | |
753 | #define UGA_IO_PROTOCOL_GUID EFI_GUID(0x61a4d49e, 0x6f68, 0x4f1b, 0xb9, 0x22, 0xa8, 0x6e, 0xed, 0x0b, 0x07, 0xa2) | |
754 | #define EFI_GLOBAL_VARIABLE_GUID EFI_GUID(0x8be4df61, 0x93ca, 0x11d2, 0xaa, 0x0d, 0x00, 0xe0, 0x98, 0x03, 0x2b, 0x8c) | |
755 | #define UV_SYSTEM_TABLE_GUID EFI_GUID(0x3b13a7d4, 0x633e, 0x11dd, 0x93, 0xec, 0xda, 0x25, 0x56, 0xd8, 0x95, 0x93) | |
756 | #define LINUX_EFI_CRASH_GUID EFI_GUID(0xcfc8fc79, 0xbe2e, 0x4ddc, 0x97, 0xf0, 0x9f, 0x98, 0xbf, 0xe2, 0x98, 0xa0) | |
757 | #define LOADED_IMAGE_PROTOCOL_GUID EFI_GUID(0x5b1b31a1, 0x9562, 0x11d2, 0x8e, 0x3f, 0x00, 0xa0, 0xc9, 0x69, 0x72, 0x3b) | |
758 | #define EFI_GRAPHICS_OUTPUT_PROTOCOL_GUID EFI_GUID(0x9042a9de, 0x23dc, 0x4a38, 0x96, 0xfb, 0x7a, 0xde, 0xd0, 0x80, 0x51, 0x6a) | |
759 | #define EFI_UGA_PROTOCOL_GUID EFI_GUID(0x982c298b, 0xf4fa, 0x41cb, 0xb8, 0x38, 0x77, 0xaa, 0x68, 0x8f, 0xb8, 0x39) | |
760 | #define EFI_PCI_IO_PROTOCOL_GUID EFI_GUID(0x4cf5b200, 0x68b8, 0x4ca5, 0x9e, 0xec, 0xb2, 0x3e, 0x3f, 0x50, 0x02, 0x9a) | |
761 | #define EFI_FILE_INFO_ID EFI_GUID(0x09576e92, 0x6d3f, 0x11d2, 0x8e, 0x39, 0x00, 0xa0, 0xc9, 0x69, 0x72, 0x3b) | |
762 | #define EFI_SYSTEM_RESOURCE_TABLE_GUID EFI_GUID(0xb122a263, 0x3661, 0x4f68, 0x99, 0x29, 0x78, 0xf8, 0xb0, 0xd6, 0x21, 0x80) | |
763 | #define EFI_FILE_SYSTEM_GUID EFI_GUID(0x964e5b22, 0x6459, 0x11d2, 0x8e, 0x39, 0x00, 0xa0, 0xc9, 0x69, 0x72, 0x3b) | |
764 | #define DEVICE_TREE_GUID EFI_GUID(0xb1b621d5, 0xf19c, 0x41a5, 0x83, 0x0b, 0xd9, 0x15, 0x2c, 0x69, 0xaa, 0xe0) | |
765 | #define EFI_PROPERTIES_TABLE_GUID EFI_GUID(0x880aaca3, 0x4adc, 0x4a04, 0x90, 0x79, 0xb7, 0x47, 0x34, 0x08, 0x25, 0xe5) | |
766 | #define EFI_RNG_PROTOCOL_GUID EFI_GUID(0x3152bca5, 0xeade, 0x433d, 0x86, 0x2e, 0xc0, 0x1c, 0xdc, 0x29, 0x1f, 0x44) | |
568bc4e8 | 767 | #define EFI_RNG_ALGORITHM_RAW EFI_GUID(0xe43176d7, 0xb6e8, 0x4827, 0xb7, 0x84, 0x7f, 0xfd, 0xc4, 0xb6, 0x85, 0x61) |
7fb2b43c IM |
768 | #define EFI_MEMORY_ATTRIBUTES_TABLE_GUID EFI_GUID(0xdcfa911d, 0x26eb, 0x469f, 0xa2, 0x20, 0x38, 0xb7, 0xdc, 0x46, 0x12, 0x20) |
769 | #define EFI_CONSOLE_OUT_DEVICE_GUID EFI_GUID(0xd3b36f2c, 0xd551, 0x11d4, 0x9a, 0x46, 0x00, 0x90, 0x27, 0x3f, 0xc1, 0x4d) | |
58c5475a | 770 | #define APPLE_PROPERTIES_PROTOCOL_GUID EFI_GUID(0x91bd12fe, 0xf6c3, 0x44fb, 0xa5, 0xb7, 0x51, 0x22, 0xab, 0x30, 0x3a, 0xe0) |
33b6d034 | 771 | #define EFI_TCG2_PROTOCOL_GUID EFI_GUID(0x607f766c, 0x7455, 0x42be, 0x93, 0x0b, 0xe4, 0xd7, 0x6d, 0xb2, 0x72, 0x0f) |
fc372064 | 772 | |
e58910cd JB |
773 | #define EFI_IMAGE_SECURITY_DATABASE_GUID EFI_GUID(0xd719b2cb, 0x3d3a, 0x4596, 0xa3, 0xbc, 0xda, 0xd0, 0x0e, 0x67, 0x65, 0x6f) |
774 | #define EFI_SHIM_LOCK_GUID EFI_GUID(0x605dab50, 0xe046, 0x4300, 0xab, 0xb6, 0x3d, 0xd8, 0x10, 0xdd, 0x8b, 0x23) | |
775 | ||
5c126ba2 DH |
776 | #define EFI_CERT_SHA256_GUID EFI_GUID(0xc1c41626, 0x504c, 0x4092, 0xac, 0xa9, 0x41, 0xf9, 0x36, 0x93, 0x43, 0x28) |
777 | #define EFI_CERT_X509_GUID EFI_GUID(0xa5c059a1, 0x94e4, 0x4aa7, 0x87, 0xb5, 0xab, 0x15, 0x5c, 0x2b, 0xf0, 0x72) | |
778 | #define EFI_CERT_X509_SHA256_GUID EFI_GUID(0x3bd2a492, 0x96c0, 0x4079, 0xb4, 0x20, 0xfc, 0xf9, 0x8e, 0xf1, 0x03, 0xed) | |
779 | ||
801820be AB |
780 | /* |
781 | * This GUID is used to pass to the kernel proper the struct screen_info | |
782 | * structure that was populated by the stub based on the GOP protocol instance | |
783 | * associated with ConOut | |
784 | */ | |
7fb2b43c IM |
785 | #define LINUX_EFI_ARM_SCREEN_INFO_TABLE_GUID EFI_GUID(0xe03fc20a, 0x85dc, 0x406e, 0xb9, 0x0e, 0x4a, 0xb5, 0x02, 0x37, 0x1d, 0x95) |
786 | #define LINUX_EFI_LOADER_ENTRY_GUID EFI_GUID(0x4a67b082, 0x0a4c, 0x41cf, 0xb6, 0xc7, 0x44, 0x0b, 0x29, 0xbb, 0x8c, 0x4f) | |
63625988 | 787 | #define LINUX_EFI_RANDOM_SEED_TABLE_GUID EFI_GUID(0x1ce1e5bc, 0x7ceb, 0x42f2, 0x81, 0xe5, 0x8a, 0xad, 0xf1, 0x80, 0xf5, 0x7b) |
33b6d034 | 788 | #define LINUX_EFI_TPM_EVENT_LOG_GUID EFI_GUID(0xb7799cb0, 0xeca2, 0x4943, 0x96, 0x67, 0x1f, 0xae, 0x07, 0xb7, 0x47, 0xfa) |
c46f3405 | 789 | #define LINUX_EFI_TPM_FINAL_LOG_GUID EFI_GUID(0x1e2ed096, 0x30e2, 0x4254, 0xbd, 0x89, 0x86, 0x3b, 0xbe, 0xf8, 0x23, 0x25) |
71e0940d | 790 | #define LINUX_EFI_MEMRESERVE_TABLE_GUID EFI_GUID(0x888eb0c6, 0x8ede, 0x4ff5, 0xa8, 0xf0, 0x9a, 0xee, 0x5c, 0xb9, 0x77, 0xc2) |
06f7d4a1 | 791 | |
1c5fecb6 N |
792 | /* OEM GUIDs */ |
793 | #define DELLEMC_EFI_RCI2_TABLE_GUID EFI_GUID(0x2d9f28a2, 0xa886, 0x456a, 0x97, 0xa8, 0xf1, 0x1e, 0xf2, 0x4f, 0xf4, 0x55) | |
794 | ||
1adbfa35 OJ |
795 | typedef struct { |
796 | efi_guid_t guid; | |
797 | u64 table; | |
798 | } efi_config_table_64_t; | |
799 | ||
800 | typedef struct { | |
801 | efi_guid_t guid; | |
802 | u32 table; | |
803 | } efi_config_table_32_t; | |
804 | ||
1786e830 AB |
805 | typedef union { |
806 | struct { | |
807 | efi_guid_t guid; | |
808 | unsigned long table; | |
809 | }; | |
810 | efi_config_table_32_t mixed_mode; | |
1da177e4 LT |
811 | } efi_config_table_t; |
812 | ||
272686bf LL |
813 | typedef struct { |
814 | efi_guid_t guid; | |
815 | const char *name; | |
816 | unsigned long *ptr; | |
817 | } efi_config_table_type_t; | |
818 | ||
1da177e4 | 819 | #define EFI_SYSTEM_TABLE_SIGNATURE ((u64)0x5453595320494249ULL) |
1da177e4 | 820 | |
3b370237 MG |
821 | #define EFI_2_30_SYSTEM_TABLE_REVISION ((2 << 16) | (30)) |
822 | #define EFI_2_20_SYSTEM_TABLE_REVISION ((2 << 16) | (20)) | |
823 | #define EFI_2_10_SYSTEM_TABLE_REVISION ((2 << 16) | (10)) | |
824 | #define EFI_2_00_SYSTEM_TABLE_REVISION ((2 << 16) | (00)) | |
825 | #define EFI_1_10_SYSTEM_TABLE_REVISION ((1 << 16) | (10)) | |
826 | #define EFI_1_02_SYSTEM_TABLE_REVISION ((1 << 16) | (02)) | |
827 | ||
1adbfa35 OJ |
828 | typedef struct { |
829 | efi_table_hdr_t hdr; | |
830 | u64 fw_vendor; /* physical addr of CHAR16 vendor string */ | |
831 | u32 fw_revision; | |
832 | u32 __pad1; | |
833 | u64 con_in_handle; | |
834 | u64 con_in; | |
835 | u64 con_out_handle; | |
836 | u64 con_out; | |
837 | u64 stderr_handle; | |
838 | u64 stderr; | |
839 | u64 runtime; | |
840 | u64 boottime; | |
841 | u32 nr_tables; | |
842 | u32 __pad2; | |
843 | u64 tables; | |
844 | } efi_system_table_64_t; | |
845 | ||
846 | typedef struct { | |
847 | efi_table_hdr_t hdr; | |
848 | u32 fw_vendor; /* physical addr of CHAR16 vendor string */ | |
849 | u32 fw_revision; | |
850 | u32 con_in_handle; | |
851 | u32 con_in; | |
852 | u32 con_out_handle; | |
853 | u32 con_out; | |
854 | u32 stderr_handle; | |
855 | u32 stderr; | |
856 | u32 runtime; | |
857 | u32 boottime; | |
858 | u32 nr_tables; | |
859 | u32 tables; | |
860 | } efi_system_table_32_t; | |
861 | ||
1786e830 AB |
862 | typedef union { |
863 | struct { | |
864 | efi_table_hdr_t hdr; | |
865 | unsigned long fw_vendor; /* physical addr of CHAR16 vendor string */ | |
866 | u32 fw_revision; | |
867 | unsigned long con_in_handle; | |
868 | unsigned long con_in; | |
869 | unsigned long con_out_handle; | |
870 | unsigned long con_out; | |
871 | unsigned long stderr_handle; | |
872 | unsigned long stderr; | |
873 | efi_runtime_services_t *runtime; | |
874 | efi_boot_services_t *boottime; | |
875 | unsigned long nr_tables; | |
876 | unsigned long tables; | |
877 | }; | |
878 | efi_system_table_32_t mixed_mode; | |
1da177e4 LT |
879 | } efi_system_table_t; |
880 | ||
9479c7ce MF |
881 | /* |
882 | * Architecture independent structure for describing a memory map for the | |
883 | * benefit of efi_memmap_init_early(), saving us the need to pass four | |
884 | * parameters. | |
885 | */ | |
886 | struct efi_memory_map_data { | |
887 | phys_addr_t phys_map; | |
888 | unsigned long size; | |
889 | unsigned long desc_version; | |
890 | unsigned long desc_size; | |
891 | }; | |
892 | ||
1da177e4 | 893 | struct efi_memory_map { |
44511fb9 | 894 | phys_addr_t phys_map; |
7ae65fd3 MT |
895 | void *map; |
896 | void *map_end; | |
1da177e4 LT |
897 | int nr_map; |
898 | unsigned long desc_version; | |
7ae65fd3 | 899 | unsigned long desc_size; |
dca0f971 | 900 | bool late; |
1da177e4 LT |
901 | }; |
902 | ||
60863c0d MF |
903 | struct efi_mem_range { |
904 | struct range range; | |
905 | u64 attribute; | |
1da177e4 LT |
906 | }; |
907 | ||
0302f71c MS |
908 | struct efi_fdt_params { |
909 | u64 system_table; | |
910 | u64 mmap; | |
911 | u32 mmap_size; | |
912 | u32 desc_size; | |
913 | u32 desc_ver; | |
914 | }; | |
915 | ||
677703ce MF |
916 | typedef struct { |
917 | u32 revision; | |
918 | u32 parent_handle; | |
919 | u32 system_table; | |
920 | u32 device_handle; | |
921 | u32 file_path; | |
922 | u32 reserved; | |
923 | u32 load_options_size; | |
924 | u32 load_options; | |
925 | u32 image_base; | |
926 | __aligned_u64 image_size; | |
927 | unsigned int image_code_type; | |
928 | unsigned int image_data_type; | |
9fa76ca7 | 929 | u32 unload; |
677703ce MF |
930 | } efi_loaded_image_32_t; |
931 | ||
932 | typedef struct { | |
933 | u32 revision; | |
934 | u64 parent_handle; | |
935 | u64 system_table; | |
936 | u64 device_handle; | |
937 | u64 file_path; | |
938 | u64 reserved; | |
939 | u32 load_options_size; | |
940 | u64 load_options; | |
941 | u64 image_base; | |
942 | __aligned_u64 image_size; | |
943 | unsigned int image_code_type; | |
944 | unsigned int image_data_type; | |
9fa76ca7 | 945 | u64 unload; |
677703ce MF |
946 | } efi_loaded_image_64_t; |
947 | ||
1786e830 AB |
948 | typedef union efi_loaded_image efi_loaded_image_t; |
949 | ||
950 | union efi_loaded_image { | |
951 | struct { | |
952 | u32 revision; | |
953 | efi_handle_t parent_handle; | |
954 | efi_system_table_t *system_table; | |
955 | efi_handle_t device_handle; | |
956 | void *file_path; | |
957 | void *reserved; | |
958 | u32 load_options_size; | |
959 | void *load_options; | |
960 | void *image_base; | |
961 | __aligned_u64 image_size; | |
962 | unsigned int image_code_type; | |
963 | unsigned int image_data_type; | |
964 | efi_status_t (*unload)(efi_handle_t image_handle); | |
965 | }; | |
966 | struct { | |
967 | u32 revision; | |
968 | u32 parent_handle; | |
969 | u32 system_table; | |
970 | u32 device_handle; | |
971 | u32 file_path; | |
972 | u32 reserved; | |
973 | u32 load_options_size; | |
974 | u32 load_options; | |
975 | u32 image_base; | |
976 | __aligned_u64 image_size; | |
977 | unsigned int image_code_type; | |
978 | unsigned int image_data_type; | |
979 | u32 unload; | |
980 | } mixed_mode; | |
981 | }; | |
55839d51 MF |
982 | |
983 | typedef struct { | |
984 | u64 size; | |
985 | u64 file_size; | |
986 | u64 phys_size; | |
987 | efi_time_t create_time; | |
988 | efi_time_t last_access_time; | |
989 | efi_time_t modification_time; | |
990 | __aligned_u64 attribute; | |
991 | efi_char16_t filename[1]; | |
992 | } efi_file_info_t; | |
993 | ||
677703ce MF |
994 | typedef struct { |
995 | u64 revision; | |
996 | u32 open; | |
997 | u32 close; | |
998 | u32 delete; | |
999 | u32 read; | |
1000 | u32 write; | |
1001 | u32 get_position; | |
1002 | u32 set_position; | |
1003 | u32 get_info; | |
1004 | u32 set_info; | |
1005 | u32 flush; | |
1006 | } efi_file_handle_32_t; | |
1007 | ||
1008 | typedef struct { | |
1009 | u64 revision; | |
1010 | u64 open; | |
1011 | u64 close; | |
1012 | u64 delete; | |
1013 | u64 read; | |
1014 | u64 write; | |
1015 | u64 get_position; | |
1016 | u64 set_position; | |
1017 | u64 get_info; | |
1018 | u64 set_info; | |
1019 | u64 flush; | |
1020 | } efi_file_handle_64_t; | |
1021 | ||
1786e830 AB |
1022 | typedef union efi_file_handle efi_file_handle_t; |
1023 | ||
1024 | union efi_file_handle { | |
1025 | struct { | |
1026 | u64 revision; | |
1027 | efi_status_t (*open)(efi_file_handle_t *, | |
1028 | efi_file_handle_t **, | |
1029 | efi_char16_t *, u64, u64); | |
1030 | efi_status_t (*close)(efi_file_handle_t *); | |
1031 | void *delete; | |
1032 | efi_status_t (*read)(efi_file_handle_t *, unsigned long *, | |
1033 | void *); | |
1034 | void *write; | |
1035 | void *get_position; | |
1036 | void *set_position; | |
1037 | efi_status_t (*get_info)(efi_file_handle_t *, efi_guid_t *, | |
1038 | unsigned long *, void *); | |
1039 | void *set_info; | |
1040 | void *flush; | |
1041 | }; | |
1042 | struct { | |
1043 | u64 revision; | |
1044 | u32 open; | |
1045 | u32 close; | |
1046 | u32 delete; | |
1047 | u32 read; | |
1048 | u32 write; | |
1049 | u32 get_position; | |
1050 | u32 set_position; | |
1051 | u32 get_info; | |
1052 | u32 set_info; | |
1053 | u32 flush; | |
1054 | } mixed_mode; | |
1055 | }; | |
55839d51 | 1056 | |
c4db9c1e LW |
1057 | typedef struct { |
1058 | u64 revision; | |
1059 | u32 open_volume; | |
1060 | } efi_file_io_interface_32_t; | |
1061 | ||
1062 | typedef struct { | |
1063 | u64 revision; | |
1064 | u64 open_volume; | |
1065 | } efi_file_io_interface_64_t; | |
1066 | ||
1786e830 AB |
1067 | typedef union efi_file_io_interface efi_file_io_interface_t; |
1068 | ||
1069 | union efi_file_io_interface { | |
1070 | struct { | |
1071 | u64 revision; | |
1072 | int (*open_volume)(efi_file_io_interface_t *, | |
1073 | efi_file_handle_t **); | |
1074 | }; | |
1075 | struct { | |
1076 | u64 revision; | |
1077 | u32 open_volume; | |
1078 | } mixed_mode; | |
1079 | } ; | |
ed37ddff | 1080 | |
55839d51 MF |
1081 | #define EFI_FILE_MODE_READ 0x0000000000000001 |
1082 | #define EFI_FILE_MODE_WRITE 0x0000000000000002 | |
1083 | #define EFI_FILE_MODE_CREATE 0x8000000000000000 | |
1084 | ||
bf924863 AB |
1085 | typedef struct { |
1086 | u32 version; | |
1087 | u32 length; | |
1088 | u64 memory_protection_attribute; | |
1089 | } efi_properties_table_t; | |
1090 | ||
1091 | #define EFI_PROPERTIES_TABLE_VERSION 0x00010000 | |
1092 | #define EFI_PROPERTIES_RUNTIME_MEMORY_PROTECTION_NON_EXECUTABLE_PE_DATA 0x1 | |
1093 | ||
b2c99e3c BH |
1094 | #define EFI_INVALID_TABLE_ADDR (~0UL) |
1095 | ||
a604af07 AB |
1096 | typedef struct { |
1097 | u32 version; | |
1098 | u32 num_entries; | |
1099 | u32 desc_size; | |
1100 | u32 reserved; | |
1101 | efi_memory_desc_t entry[0]; | |
1102 | } efi_memory_attributes_table_t; | |
1103 | ||
5c126ba2 DH |
1104 | typedef struct { |
1105 | efi_guid_t signature_owner; | |
1106 | u8 signature_data[]; | |
1107 | } efi_signature_data_t; | |
1108 | ||
1109 | typedef struct { | |
1110 | efi_guid_t signature_type; | |
1111 | u32 signature_list_size; | |
1112 | u32 signature_header_size; | |
1113 | u32 signature_size; | |
1114 | u8 signature_header[]; | |
1115 | /* efi_signature_data_t signatures[][] */ | |
1116 | } efi_signature_list_t; | |
1117 | ||
1118 | typedef u8 efi_sha256_hash_t[32]; | |
1119 | ||
1120 | typedef struct { | |
1121 | efi_sha256_hash_t to_be_signed_hash; | |
1122 | efi_time_t time_of_revocation; | |
1123 | } efi_cert_x509_sha256_t; | |
1124 | ||
1da177e4 LT |
1125 | /* |
1126 | * All runtime access to EFI goes through this structure: | |
1127 | */ | |
1128 | extern struct efi { | |
1129 | efi_system_table_t *systab; /* EFI system table */ | |
3b370237 | 1130 | unsigned int runtime_version; /* Runtime services version */ |
b2c99e3c BH |
1131 | unsigned long mps; /* MPS table */ |
1132 | unsigned long acpi; /* ACPI table (IA64 ext 0.71) */ | |
1133 | unsigned long acpi20; /* ACPI table (ACPI 2.0) */ | |
e1ccbbc9 AB |
1134 | unsigned long smbios; /* SMBIOS table (32 bit entry point) */ |
1135 | unsigned long smbios3; /* SMBIOS table (64 bit entry point) */ | |
b2c99e3c BH |
1136 | unsigned long boot_info; /* boot info table */ |
1137 | unsigned long hcdp; /* HCDP table */ | |
1138 | unsigned long uga; /* UGA table */ | |
a0998eb1 DY |
1139 | unsigned long fw_vendor; /* fw_vendor */ |
1140 | unsigned long runtime; /* runtime table */ | |
1141 | unsigned long config_table; /* config tables */ | |
0bb54905 | 1142 | unsigned long esrt; /* ESRT table */ |
bf924863 | 1143 | unsigned long properties_table; /* properties table */ |
a604af07 | 1144 | unsigned long mem_attr_table; /* memory attributes table */ |
63625988 | 1145 | unsigned long rng_seed; /* UEFI firmware random seed */ |
33b6d034 | 1146 | unsigned long tpm_log; /* TPM2 Event Log table */ |
c46f3405 | 1147 | unsigned long tpm_final_log; /* TPM2 Final Events Log table */ |
71e0940d | 1148 | unsigned long mem_reserve; /* Linux EFI memreserve table */ |
1da177e4 LT |
1149 | efi_get_time_t *get_time; |
1150 | efi_set_time_t *set_time; | |
1151 | efi_get_wakeup_time_t *get_wakeup_time; | |
1152 | efi_set_wakeup_time_t *set_wakeup_time; | |
1153 | efi_get_variable_t *get_variable; | |
1154 | efi_get_next_variable_t *get_next_variable; | |
1155 | efi_set_variable_t *set_variable; | |
70d2a3cf | 1156 | efi_set_variable_t *set_variable_nonblocking; |
3b370237 | 1157 | efi_query_variable_info_t *query_variable_info; |
d3cac1f8 | 1158 | efi_query_variable_info_t *query_variable_info_nonblocking; |
3b370237 MG |
1159 | efi_update_capsule_t *update_capsule; |
1160 | efi_query_capsule_caps_t *query_capsule_caps; | |
1da177e4 LT |
1161 | efi_get_next_high_mono_count_t *get_next_high_mono_count; |
1162 | efi_reset_system_t *reset_system; | |
1163 | efi_set_virtual_address_map_t *set_virtual_address_map; | |
884f4f66 | 1164 | struct efi_memory_map memmap; |
3e909599 | 1165 | unsigned long flags; |
1da177e4 LT |
1166 | } efi; |
1167 | ||
7e904a91 SP |
1168 | extern struct mm_struct efi_mm; |
1169 | ||
1da177e4 LT |
1170 | static inline int |
1171 | efi_guidcmp (efi_guid_t left, efi_guid_t right) | |
1172 | { | |
1173 | return memcmp(&left, &right, sizeof (efi_guid_t)); | |
1174 | } | |
1175 | ||
1176 | static inline char * | |
26e02272 | 1177 | efi_guid_to_str(efi_guid_t *guid, char *out) |
1da177e4 | 1178 | { |
925ede0b | 1179 | sprintf(out, "%pUl", guid->b); |
1da177e4 LT |
1180 | return out; |
1181 | } | |
1182 | ||
1183 | extern void efi_init (void); | |
1184 | extern void *efi_get_pal_addr (void); | |
1185 | extern void efi_map_pal_code (void); | |
1da177e4 | 1186 | extern void efi_memmap_walk (efi_freemem_callback_t callback, void *arg); |
70f4f935 | 1187 | extern void efi_gettimeofday (struct timespec64 *ts); |
1da177e4 | 1188 | extern void efi_enter_virtual_mode (void); /* switch EFI to virtual mode, if possible */ |
78510792 | 1189 | #ifdef CONFIG_X86 |
ca0e30dc AB |
1190 | extern efi_status_t efi_query_variable_store(u32 attributes, |
1191 | unsigned long size, | |
1192 | bool nonblocking); | |
78510792 | 1193 | #else |
a6e4d5a0 | 1194 | |
ca0e30dc AB |
1195 | static inline efi_status_t efi_query_variable_store(u32 attributes, |
1196 | unsigned long size, | |
1197 | bool nonblocking) | |
a6e4d5a0 MF |
1198 | { |
1199 | return EFI_SUCCESS; | |
1200 | } | |
78510792 | 1201 | #endif |
7bc90e01 | 1202 | extern void __iomem *efi_lookup_mapped_addr(u64 phys_addr); |
9479c7ce | 1203 | |
20b1e22d | 1204 | extern phys_addr_t __init efi_memmap_alloc(unsigned int num_entries); |
9479c7ce | 1205 | extern int __init efi_memmap_init_early(struct efi_memory_map_data *data); |
dca0f971 | 1206 | extern int __init efi_memmap_init_late(phys_addr_t addr, unsigned long size); |
9479c7ce | 1207 | extern void __init efi_memmap_unmap(void); |
c45f4da3 | 1208 | extern int __init efi_memmap_install(phys_addr_t addr, unsigned int nr_map); |
60863c0d MF |
1209 | extern int __init efi_memmap_split_count(efi_memory_desc_t *md, |
1210 | struct range *range); | |
1211 | extern void __init efi_memmap_insert(struct efi_memory_map *old_memmap, | |
1212 | void *buf, struct efi_mem_range *mem); | |
9479c7ce | 1213 | |
272686bf | 1214 | extern int efi_config_init(efi_config_table_type_t *arch_tables); |
3846c158 | 1215 | #ifdef CONFIG_EFI_ESRT |
0bb54905 | 1216 | extern void __init efi_esrt_init(void); |
3846c158 PJ |
1217 | #else |
1218 | static inline void efi_esrt_init(void) { } | |
1219 | #endif | |
7bb68410 AB |
1220 | extern int efi_config_parse_tables(void *config_tables, int count, int sz, |
1221 | efi_config_table_type_t *arch_tables); | |
1da177e4 | 1222 | extern u64 efi_get_iobase (void); |
f99afd08 | 1223 | extern int efi_mem_type(unsigned long phys_addr); |
1da177e4 | 1224 | extern u64 efi_mem_attributes (unsigned long phys_addr); |
32e62c63 | 1225 | extern u64 efi_mem_attribute (unsigned long phys_addr, unsigned long size); |
1da177e4 | 1226 | extern int __init efi_uart_console_only (void); |
0bb54905 PJ |
1227 | extern u64 efi_mem_desc_end(efi_memory_desc_t *md); |
1228 | extern int efi_mem_desc_lookup(u64 phys_addr, efi_memory_desc_t *out_md); | |
816e7612 | 1229 | extern void efi_mem_reserve(phys_addr_t addr, u64 size); |
a23d3bb0 | 1230 | extern int efi_mem_reserve_persistent(phys_addr_t addr, u64 size); |
1da177e4 | 1231 | extern void efi_initialize_iomem_resources(struct resource *code_resource, |
00bf4098 | 1232 | struct resource *data_resource, struct resource *bss_resource); |
7968c0e3 | 1233 | extern int efi_get_fdt_params(struct efi_fdt_params *params); |
0bb54905 | 1234 | extern struct kobject *efi_kobj; |
1da177e4 | 1235 | |
44be28e9 | 1236 | extern int efi_reboot_quirk_mode; |
0c5ed61a MF |
1237 | extern bool efi_poweroff_required(void); |
1238 | ||
0f96a99d TI |
1239 | #ifdef CONFIG_EFI_FAKE_MEMMAP |
1240 | extern void __init efi_fake_memmap(void); | |
1241 | #else | |
1242 | static inline void efi_fake_memmap(void) { } | |
1243 | #endif | |
1244 | ||
10f0d2f5 AB |
1245 | /* |
1246 | * efi_memattr_perm_setter - arch specific callback function passed into | |
1247 | * efi_memattr_apply_permissions() that updates the | |
1248 | * mapping permissions described by the second | |
1249 | * argument in the page tables referred to by the | |
1250 | * first argument. | |
1251 | */ | |
1252 | typedef int (*efi_memattr_perm_setter)(struct mm_struct *, efi_memory_desc_t *); | |
1253 | ||
1254 | extern int efi_memattr_init(void); | |
1255 | extern int efi_memattr_apply_permissions(struct mm_struct *mm, | |
1256 | efi_memattr_perm_setter fn); | |
1257 | ||
02e43c2d BH |
1258 | /* |
1259 | * efi_early_memdesc_ptr - get the n-th EFI memmap descriptor | |
1260 | * @map: the start of efi memmap | |
1261 | * @desc_size: the size of space for each EFI memmap descriptor | |
1262 | * @n: the index of efi memmap descriptor | |
1263 | * | |
1264 | * EFI boot service provides the GetMemoryMap() function to get a copy of the | |
1265 | * current memory map which is an array of memory descriptors, each of | |
1266 | * which describes a contiguous block of memory. It also gets the size of the | |
1267 | * map, and the size of each descriptor, etc. | |
1268 | * | |
1269 | * Note that per section 6.2 of UEFI Spec 2.6 Errata A, the returned size of | |
1270 | * each descriptor might not be equal to sizeof(efi_memory_memdesc_t), | |
1271 | * since efi_memory_memdesc_t may be extended in the future. Thus the OS | |
1272 | * MUST use the returned size of the descriptor to find the start of each | |
1273 | * efi_memory_memdesc_t in the memory map array. This should only be used | |
1274 | * during bootup since for_each_efi_memory_desc_xxx() is available after the | |
1275 | * kernel initializes the EFI subsystem to set up struct efi_memory_map. | |
1276 | */ | |
1277 | #define efi_early_memdesc_ptr(map, desc_size, n) \ | |
1278 | (efi_memory_desc_t *)((void *)(map) + ((n) * (desc_size))) | |
1279 | ||
e885cd80 | 1280 | /* Iterate through an efi_memory_map */ |
78ce248f | 1281 | #define for_each_efi_memory_desc_in_map(m, md) \ |
e885cd80 | 1282 | for ((md) = (m)->map; \ |
d4c4fed0 | 1283 | (md) && ((void *)(md) + (m)->desc_size) <= (m)->map_end; \ |
e885cd80 MS |
1284 | (md) = (void *)(md) + (m)->desc_size) |
1285 | ||
78ce248f MF |
1286 | /** |
1287 | * for_each_efi_memory_desc - iterate over descriptors in efi.memmap | |
1288 | * @md: the efi_memory_desc_t * iterator | |
1289 | * | |
1290 | * Once the loop finishes @md must not be accessed. | |
1291 | */ | |
1292 | #define for_each_efi_memory_desc(md) \ | |
884f4f66 | 1293 | for_each_efi_memory_desc_in_map(&efi.memmap, md) |
78ce248f | 1294 | |
98d2a6ca LE |
1295 | /* |
1296 | * Format an EFI memory descriptor's type and attributes to a user-provided | |
1297 | * character buffer, as per snprintf(), and return the buffer. | |
1298 | */ | |
1299 | char * __init efi_md_typeattr_format(char *buf, size_t size, | |
1300 | const efi_memory_desc_t *md); | |
1301 | ||
0bc9ae39 DH |
1302 | |
1303 | typedef void (*efi_element_handler_t)(const char *source, | |
1304 | const void *element_data, | |
1305 | size_t element_size); | |
1306 | extern int __init parse_efi_signature_list( | |
1307 | const char *source, | |
1308 | const void *data, size_t size, | |
1309 | efi_element_handler_t (*get_handler_for_guid)(const efi_guid_t *)); | |
1310 | ||
1da177e4 LT |
1311 | /** |
1312 | * efi_range_is_wc - check the WC bit on an address range | |
1313 | * @start: starting kvirt address | |
1314 | * @len: length of range | |
1315 | * | |
1316 | * Consult the EFI memory map and make sure it's ok to set this range WC. | |
1317 | * Returns true or false. | |
1318 | */ | |
1319 | static inline int efi_range_is_wc(unsigned long start, unsigned long len) | |
1320 | { | |
986a80d5 | 1321 | unsigned long i; |
1da177e4 LT |
1322 | |
1323 | for (i = 0; i < len; i += (1UL << EFI_PAGE_SHIFT)) { | |
1324 | unsigned long paddr = __pa(start + i); | |
1325 | if (!(efi_mem_attributes(paddr) & EFI_MEMORY_WC)) | |
1326 | return 0; | |
1327 | } | |
1328 | /* The range checked out */ | |
1329 | return 1; | |
1330 | } | |
1331 | ||
1332 | #ifdef CONFIG_EFI_PCDP | |
1333 | extern int __init efi_setup_pcdp_console(char *); | |
1334 | #endif | |
1335 | ||
1336 | /* | |
83e68189 MF |
1337 | * We play games with efi_enabled so that the compiler will, if |
1338 | * possible, remove EFI-related code altogether. | |
1da177e4 | 1339 | */ |
83e68189 | 1340 | #define EFI_BOOT 0 /* Were we booted from EFI? */ |
83e68189 MF |
1341 | #define EFI_CONFIG_TABLES 2 /* Can we use EFI config tables? */ |
1342 | #define EFI_RUNTIME_SERVICES 3 /* Can we use runtime services? */ | |
1343 | #define EFI_MEMMAP 4 /* Can we use EFI memory map? */ | |
1344 | #define EFI_64BIT 5 /* Is the firmware 64-bit? */ | |
9f27bc54 DK |
1345 | #define EFI_PARAVIRT 6 /* Access is via a paravirt interface */ |
1346 | #define EFI_ARCH_1 7 /* First arch-specific bit */ | |
fed6cefe | 1347 | #define EFI_DBG 8 /* Print additional debug info at runtime */ |
a1041713 | 1348 | #define EFI_NX_PE_DATA 9 /* Can runtime data regions be mapped non-executable? */ |
a19ebf59 | 1349 | #define EFI_MEM_ATTR 10 /* Did firmware publish an EFI_MEMORY_ATTRIBUTES table? */ |
b617c526 | 1350 | #define EFI_MEM_NO_SOFT_RESERVE 11 /* Is the kernel configured to ignore soft reservations? */ |
83e68189 | 1351 | |
1da177e4 | 1352 | #ifdef CONFIG_EFI |
3e909599 MF |
1353 | /* |
1354 | * Test whether the above EFI_* bits are enabled. | |
1355 | */ | |
1356 | static inline bool efi_enabled(int feature) | |
1357 | { | |
1358 | return test_bit(feature, &efi.flags) != 0; | |
1359 | } | |
8562c99c | 1360 | extern void efi_reboot(enum reboot_mode reboot_mode, const char *__unused); |
b617c526 DW |
1361 | |
1362 | bool __pure __efi_soft_reserve_enabled(void); | |
1363 | ||
1364 | static inline bool __pure efi_soft_reserve_enabled(void) | |
1365 | { | |
1366 | return IS_ENABLED(CONFIG_EFI_SOFT_RESERVE) | |
1367 | && __efi_soft_reserve_enabled(); | |
1368 | } | |
1da177e4 | 1369 | #else |
3e909599 | 1370 | static inline bool efi_enabled(int feature) |
83e68189 | 1371 | { |
3e909599 | 1372 | return false; |
83e68189 | 1373 | } |
8562c99c MF |
1374 | static inline void |
1375 | efi_reboot(enum reboot_mode reboot_mode, const char *__unused) {} | |
87615a34 MF |
1376 | |
1377 | static inline bool | |
1378 | efi_capsule_pending(int *reset_type) | |
1379 | { | |
1380 | return false; | |
1381 | } | |
b617c526 DW |
1382 | |
1383 | static inline bool efi_soft_reserve_enabled(void) | |
1384 | { | |
1385 | return false; | |
1386 | } | |
1da177e4 LT |
1387 | #endif |
1388 | ||
806b0351 MF |
1389 | extern int efi_status_to_err(efi_status_t status); |
1390 | ||
1da177e4 LT |
1391 | /* |
1392 | * Variable Attributes | |
1393 | */ | |
1394 | #define EFI_VARIABLE_NON_VOLATILE 0x0000000000000001 | |
1395 | #define EFI_VARIABLE_BOOTSERVICE_ACCESS 0x0000000000000002 | |
1396 | #define EFI_VARIABLE_RUNTIME_ACCESS 0x0000000000000004 | |
41b3254c MG |
1397 | #define EFI_VARIABLE_HARDWARE_ERROR_RECORD 0x0000000000000008 |
1398 | #define EFI_VARIABLE_AUTHENTICATED_WRITE_ACCESS 0x0000000000000010 | |
1399 | #define EFI_VARIABLE_TIME_BASED_AUTHENTICATED_WRITE_ACCESS 0x0000000000000020 | |
1400 | #define EFI_VARIABLE_APPEND_WRITE 0x0000000000000040 | |
1401 | ||
1402 | #define EFI_VARIABLE_MASK (EFI_VARIABLE_NON_VOLATILE | \ | |
1403 | EFI_VARIABLE_BOOTSERVICE_ACCESS | \ | |
1404 | EFI_VARIABLE_RUNTIME_ACCESS | \ | |
1405 | EFI_VARIABLE_HARDWARE_ERROR_RECORD | \ | |
1406 | EFI_VARIABLE_AUTHENTICATED_WRITE_ACCESS | \ | |
1407 | EFI_VARIABLE_TIME_BASED_AUTHENTICATED_WRITE_ACCESS | \ | |
1408 | EFI_VARIABLE_APPEND_WRITE) | |
e14ab23d MF |
1409 | /* |
1410 | * Length of a GUID string (strlen("aaaaaaaa-bbbb-cccc-dddd-eeeeeeeeeeee")) | |
1411 | * not including trailing NUL | |
1412 | */ | |
ba7e34b1 | 1413 | #define EFI_VARIABLE_GUID_LEN UUID_STRING_LEN |
e14ab23d | 1414 | |
e2527a7c MF |
1415 | /* |
1416 | * The type of search to perform when calling boottime->locate_handle | |
1417 | */ | |
1418 | #define EFI_LOCATE_ALL_HANDLES 0 | |
1419 | #define EFI_LOCATE_BY_REGISTER_NOTIFY 1 | |
1420 | #define EFI_LOCATE_BY_PROTOCOL 2 | |
1421 | ||
1da177e4 LT |
1422 | /* |
1423 | * EFI Device Path information | |
1424 | */ | |
1425 | #define EFI_DEV_HW 0x01 | |
1426 | #define EFI_DEV_PCI 1 | |
1427 | #define EFI_DEV_PCCARD 2 | |
1428 | #define EFI_DEV_MEM_MAPPED 3 | |
1429 | #define EFI_DEV_VENDOR 4 | |
1430 | #define EFI_DEV_CONTROLLER 5 | |
1431 | #define EFI_DEV_ACPI 0x02 | |
1432 | #define EFI_DEV_BASIC_ACPI 1 | |
1433 | #define EFI_DEV_EXPANDED_ACPI 2 | |
1434 | #define EFI_DEV_MSG 0x03 | |
1435 | #define EFI_DEV_MSG_ATAPI 1 | |
1436 | #define EFI_DEV_MSG_SCSI 2 | |
1437 | #define EFI_DEV_MSG_FC 3 | |
1438 | #define EFI_DEV_MSG_1394 4 | |
1439 | #define EFI_DEV_MSG_USB 5 | |
1440 | #define EFI_DEV_MSG_USB_CLASS 15 | |
1441 | #define EFI_DEV_MSG_I20 6 | |
1442 | #define EFI_DEV_MSG_MAC 11 | |
1443 | #define EFI_DEV_MSG_IPV4 12 | |
1444 | #define EFI_DEV_MSG_IPV6 13 | |
1445 | #define EFI_DEV_MSG_INFINIBAND 9 | |
1446 | #define EFI_DEV_MSG_UART 14 | |
1447 | #define EFI_DEV_MSG_VENDOR 10 | |
1448 | #define EFI_DEV_MEDIA 0x04 | |
1449 | #define EFI_DEV_MEDIA_HARD_DRIVE 1 | |
1450 | #define EFI_DEV_MEDIA_CDROM 2 | |
1451 | #define EFI_DEV_MEDIA_VENDOR 3 | |
1452 | #define EFI_DEV_MEDIA_FILE 4 | |
1453 | #define EFI_DEV_MEDIA_PROTOCOL 5 | |
1454 | #define EFI_DEV_BIOS_BOOT 0x05 | |
1455 | #define EFI_DEV_END_PATH 0x7F | |
1456 | #define EFI_DEV_END_PATH2 0xFF | |
1457 | #define EFI_DEV_END_INSTANCE 0x01 | |
1458 | #define EFI_DEV_END_ENTIRE 0xFF | |
1459 | ||
1460 | struct efi_generic_dev_path { | |
1461 | u8 type; | |
1462 | u8 sub_type; | |
1463 | u16 length; | |
1464 | } __attribute ((packed)); | |
1465 | ||
46cd4b75 LW |
1466 | struct efi_dev_path { |
1467 | u8 type; /* can be replaced with unnamed */ | |
1468 | u8 sub_type; /* struct efi_generic_dev_path; */ | |
1469 | u16 length; /* once we've moved to -std=c11 */ | |
1470 | union { | |
1471 | struct { | |
1472 | u32 hid; | |
1473 | u32 uid; | |
1474 | } acpi; | |
1475 | struct { | |
1476 | u8 fn; | |
1477 | u8 dev; | |
1478 | } pci; | |
1479 | }; | |
1480 | } __attribute ((packed)); | |
1481 | ||
1482 | #if IS_ENABLED(CONFIG_EFI_DEV_PATH_PARSER) | |
1483 | struct device *efi_get_device_by_path(struct efi_dev_path **node, size_t *len); | |
1484 | #endif | |
1485 | ||
4a3575fd HY |
1486 | static inline void memrange_efi_to_native(u64 *addr, u64 *npages) |
1487 | { | |
1488 | *npages = PFN_UP(*addr + (*npages<<EFI_PAGE_SHIFT)) - PFN_DOWN(*addr); | |
1489 | *addr &= PAGE_MASK; | |
1490 | } | |
1491 | ||
4fc756bd MW |
1492 | /* |
1493 | * EFI Variable support. | |
1494 | * | |
1495 | * Different firmware drivers can expose their EFI-like variables using | |
1496 | * the following. | |
1497 | */ | |
1498 | ||
1499 | struct efivar_operations { | |
1500 | efi_get_variable_t *get_variable; | |
1501 | efi_get_next_variable_t *get_next_variable; | |
1502 | efi_set_variable_t *set_variable; | |
70d2a3cf | 1503 | efi_set_variable_t *set_variable_nonblocking; |
a6e4d5a0 | 1504 | efi_query_variable_store_t *query_variable_store; |
4fc756bd MW |
1505 | }; |
1506 | ||
1507 | struct efivars { | |
4fc756bd | 1508 | struct kset *kset; |
605e70c7 | 1509 | struct kobject *kobject; |
4fc756bd MW |
1510 | const struct efivar_operations *ops; |
1511 | }; | |
1512 | ||
e14ab23d MF |
1513 | /* |
1514 | * The maximum size of VariableName + Data = 1024 | |
1515 | * Therefore, it's reasonable to save that much | |
1516 | * space in each part of the structure, | |
1517 | * and we use a page for reading/writing. | |
1518 | */ | |
1519 | ||
a5d92ad3 MF |
1520 | #define EFI_VAR_NAME_LEN 1024 |
1521 | ||
e14ab23d | 1522 | struct efi_variable { |
a5d92ad3 | 1523 | efi_char16_t VariableName[EFI_VAR_NAME_LEN/sizeof(efi_char16_t)]; |
e14ab23d MF |
1524 | efi_guid_t VendorGuid; |
1525 | unsigned long DataSize; | |
1526 | __u8 Data[1024]; | |
1527 | efi_status_t Status; | |
1528 | __u32 Attributes; | |
1529 | } __attribute__((packed)); | |
1530 | ||
1531 | struct efivar_entry { | |
1532 | struct efi_variable var; | |
1533 | struct list_head list; | |
1534 | struct kobject kobj; | |
e0d59733 SA |
1535 | bool scanning; |
1536 | bool deleting; | |
e14ab23d MF |
1537 | }; |
1538 | ||
db4545d9 | 1539 | typedef struct { |
677703ce MF |
1540 | u32 reset; |
1541 | u32 output_string; | |
1542 | u32 test_string; | |
db4545d9 | 1543 | } efi_simple_text_output_protocol_32_t; |
677703ce | 1544 | |
db4545d9 | 1545 | typedef struct { |
677703ce MF |
1546 | u64 reset; |
1547 | u64 output_string; | |
1548 | u64 test_string; | |
db4545d9 | 1549 | } efi_simple_text_output_protocol_64_t; |
ed37ddff | 1550 | |
1786e830 AB |
1551 | typedef union efi_simple_text_output_protocol efi_simple_text_output_protocol_t; |
1552 | ||
1553 | union efi_simple_text_output_protocol { | |
1554 | struct { | |
1555 | void *reset; | |
1556 | efi_status_t (*output_string)(efi_simple_text_output_protocol_t *, | |
1557 | efi_char16_t *); | |
1558 | void *test_string; | |
1559 | }; | |
1560 | struct { | |
1561 | u32 reset; | |
1562 | u32 output_string; | |
1563 | u32 test_string; | |
1564 | } mixed_mode; | |
ed37ddff RF |
1565 | }; |
1566 | ||
fc372064 AB |
1567 | #define PIXEL_RGB_RESERVED_8BIT_PER_COLOR 0 |
1568 | #define PIXEL_BGR_RESERVED_8BIT_PER_COLOR 1 | |
1569 | #define PIXEL_BIT_MASK 2 | |
1570 | #define PIXEL_BLT_ONLY 3 | |
1571 | #define PIXEL_FORMAT_MAX 4 | |
1572 | ||
44c84b4a | 1573 | typedef struct { |
fc372064 AB |
1574 | u32 red_mask; |
1575 | u32 green_mask; | |
1576 | u32 blue_mask; | |
1577 | u32 reserved_mask; | |
44c84b4a | 1578 | } efi_pixel_bitmask_t; |
fc372064 | 1579 | |
44c84b4a | 1580 | typedef struct { |
fc372064 AB |
1581 | u32 version; |
1582 | u32 horizontal_resolution; | |
1583 | u32 vertical_resolution; | |
1584 | int pixel_format; | |
44c84b4a | 1585 | efi_pixel_bitmask_t pixel_information; |
fc372064 | 1586 | u32 pixels_per_scan_line; |
44c84b4a | 1587 | } efi_graphics_output_mode_info_t; |
fc372064 | 1588 | |
44c84b4a | 1589 | typedef struct { |
fc372064 AB |
1590 | u32 max_mode; |
1591 | u32 mode; | |
1592 | u32 info; | |
1593 | u32 size_of_info; | |
1594 | u64 frame_buffer_base; | |
1595 | u32 frame_buffer_size; | |
44c84b4a | 1596 | } efi_graphics_output_protocol_mode_32_t; |
fc372064 | 1597 | |
44c84b4a | 1598 | typedef struct { |
fc372064 AB |
1599 | u32 max_mode; |
1600 | u32 mode; | |
1601 | u64 info; | |
1602 | u64 size_of_info; | |
1603 | u64 frame_buffer_base; | |
1604 | u64 frame_buffer_size; | |
44c84b4a | 1605 | } efi_graphics_output_protocol_mode_64_t; |
fc372064 | 1606 | |
1786e830 AB |
1607 | typedef union efi_graphics_output_protocol_mode efi_graphics_output_protocol_mode_t; |
1608 | ||
1609 | union efi_graphics_output_protocol_mode { | |
1610 | struct { | |
1611 | u32 max_mode; | |
1612 | u32 mode; | |
1613 | efi_graphics_output_mode_info_t *info; | |
1614 | unsigned long size_of_info; | |
1615 | efi_physical_addr_t frame_buffer_base; | |
1616 | unsigned long frame_buffer_size; | |
1617 | }; | |
1618 | struct { | |
1619 | u32 max_mode; | |
1620 | u32 mode; | |
1621 | u32 info; | |
1622 | u32 size_of_info; | |
1623 | u64 frame_buffer_base; | |
1624 | u32 frame_buffer_size; | |
1625 | } mixed_mode; | |
1626 | }; | |
fc372064 | 1627 | |
44c84b4a | 1628 | typedef struct { |
fc372064 AB |
1629 | u32 query_mode; |
1630 | u32 set_mode; | |
1631 | u32 blt; | |
1632 | u32 mode; | |
44c84b4a | 1633 | } efi_graphics_output_protocol_32_t; |
fc372064 | 1634 | |
44c84b4a | 1635 | typedef struct { |
fc372064 AB |
1636 | u64 query_mode; |
1637 | u64 set_mode; | |
1638 | u64 blt; | |
1639 | u64 mode; | |
44c84b4a | 1640 | } efi_graphics_output_protocol_64_t; |
fc372064 | 1641 | |
1786e830 AB |
1642 | typedef union efi_graphics_output_protocol efi_graphics_output_protocol_t; |
1643 | ||
1644 | union efi_graphics_output_protocol { | |
1645 | struct { | |
1646 | void *query_mode; | |
1647 | void *set_mode; | |
1648 | void *blt; | |
1649 | efi_graphics_output_protocol_mode_t *mode; | |
1650 | }; | |
1651 | struct { | |
1652 | u32 query_mode; | |
1653 | u32 set_mode; | |
1654 | u32 blt; | |
1655 | u32 mode; | |
1656 | } mixed_mode; | |
1657 | }; | |
fc372064 | 1658 | |
04851772 MF |
1659 | extern struct list_head efivar_sysfs_list; |
1660 | ||
1661 | static inline void | |
1662 | efivar_unregister(struct efivar_entry *var) | |
1663 | { | |
1664 | kobject_put(&var->kobj); | |
1665 | } | |
1666 | ||
e14ab23d | 1667 | int efivars_register(struct efivars *efivars, |
4fc756bd | 1668 | const struct efivar_operations *ops, |
e14ab23d MF |
1669 | struct kobject *kobject); |
1670 | int efivars_unregister(struct efivars *efivars); | |
1671 | struct kobject *efivars_kobject(void); | |
1672 | ||
1673 | int efivar_init(int (*func)(efi_char16_t *, efi_guid_t, unsigned long, void *), | |
1cfd6316 | 1674 | void *data, bool duplicates, struct list_head *head); |
e14ab23d | 1675 | |
21b3ddd3 SC |
1676 | int efivar_entry_add(struct efivar_entry *entry, struct list_head *head); |
1677 | int efivar_entry_remove(struct efivar_entry *entry); | |
e14ab23d MF |
1678 | |
1679 | int __efivar_entry_delete(struct efivar_entry *entry); | |
1680 | int efivar_entry_delete(struct efivar_entry *entry); | |
1681 | ||
e14ab23d | 1682 | int efivar_entry_size(struct efivar_entry *entry, unsigned long *size); |
8a415b8c MF |
1683 | int __efivar_entry_get(struct efivar_entry *entry, u32 *attributes, |
1684 | unsigned long *size, void *data); | |
e14ab23d MF |
1685 | int efivar_entry_get(struct efivar_entry *entry, u32 *attributes, |
1686 | unsigned long *size, void *data); | |
1687 | int efivar_entry_set(struct efivar_entry *entry, u32 attributes, | |
1688 | unsigned long size, void *data, struct list_head *head); | |
1689 | int efivar_entry_set_get_size(struct efivar_entry *entry, u32 attributes, | |
1690 | unsigned long *size, void *data, bool *set); | |
1691 | int efivar_entry_set_safe(efi_char16_t *name, efi_guid_t vendor, u32 attributes, | |
1692 | bool block, unsigned long size, void *data); | |
1693 | ||
21b3ddd3 | 1694 | int efivar_entry_iter_begin(void); |
e14ab23d MF |
1695 | void efivar_entry_iter_end(void); |
1696 | ||
1697 | int __efivar_entry_iter(int (*func)(struct efivar_entry *, void *), | |
1698 | struct list_head *head, void *data, | |
1699 | struct efivar_entry **prev); | |
1700 | int efivar_entry_iter(int (*func)(struct efivar_entry *, void *), | |
1701 | struct list_head *head, void *data); | |
1702 | ||
1703 | struct efivar_entry *efivar_entry_find(efi_char16_t *name, efi_guid_t guid, | |
1704 | struct list_head *head, bool remove); | |
1705 | ||
8282f5d9 PJ |
1706 | bool efivar_validate(efi_guid_t vendor, efi_char16_t *var_name, u8 *data, |
1707 | unsigned long data_size); | |
ed8b0de5 PJ |
1708 | bool efivar_variable_is_removable(efi_guid_t vendor, const char *name, |
1709 | size_t len); | |
e14ab23d | 1710 | |
a9499fa7 | 1711 | extern struct work_struct efivar_work; |
04851772 MF |
1712 | void efivar_run_worker(void); |
1713 | ||
a9499fa7 | 1714 | #if defined(CONFIG_EFI_VARS) || defined(CONFIG_EFI_VARS_MODULE) |
e14ab23d | 1715 | int efivars_sysfs_init(void); |
4fc756bd | 1716 | |
e0d59733 SA |
1717 | #define EFIVARS_DATA_SIZE_MAX 1024 |
1718 | ||
4fc756bd | 1719 | #endif /* CONFIG_EFI_VARS */ |
f0133f3c MF |
1720 | extern bool efi_capsule_pending(int *reset_type); |
1721 | ||
1722 | extern int efi_capsule_supported(efi_guid_t guid, u32 flags, | |
1723 | size_t size, int *reset); | |
1724 | ||
1725 | extern int efi_capsule_update(efi_capsule_header_t *capsule, | |
2a457fb3 | 1726 | phys_addr_t *pages); |
4fc756bd | 1727 | |
926172d4 DY |
1728 | #ifdef CONFIG_EFI_RUNTIME_MAP |
1729 | int efi_runtime_map_init(struct kobject *); | |
6a2c20e7 VG |
1730 | int efi_get_runtime_map_size(void); |
1731 | int efi_get_runtime_map_desc_size(void); | |
1732 | int efi_runtime_map_copy(void *buf, size_t bufsz); | |
926172d4 DY |
1733 | #else |
1734 | static inline int efi_runtime_map_init(struct kobject *kobj) | |
1735 | { | |
1736 | return 0; | |
1737 | } | |
1738 | ||
6a2c20e7 VG |
1739 | static inline int efi_get_runtime_map_size(void) |
1740 | { | |
1741 | return 0; | |
1742 | } | |
1743 | ||
1744 | static inline int efi_get_runtime_map_desc_size(void) | |
1745 | { | |
1746 | return 0; | |
1747 | } | |
1748 | ||
1749 | static inline int efi_runtime_map_copy(void *buf, size_t bufsz) | |
1750 | { | |
1751 | return 0; | |
1752 | } | |
1753 | ||
926172d4 DY |
1754 | #endif |
1755 | ||
bd669475 AB |
1756 | /* prototypes shared between arch specific and generic stub code */ |
1757 | ||
bd669475 AB |
1758 | void efi_printk(efi_system_table_t *sys_table_arg, char *str); |
1759 | ||
1760 | void efi_free(efi_system_table_t *sys_table_arg, unsigned long size, | |
1761 | unsigned long addr); | |
1762 | ||
1763 | char *efi_convert_cmdline(efi_system_table_t *sys_table_arg, | |
1764 | efi_loaded_image_t *image, int *cmd_line_len); | |
1765 | ||
1766 | efi_status_t efi_get_memory_map(efi_system_table_t *sys_table_arg, | |
dadb57ab | 1767 | struct efi_boot_memmap *map); |
bd669475 | 1768 | |
220dd769 KS |
1769 | efi_status_t efi_low_alloc_above(efi_system_table_t *sys_table_arg, |
1770 | unsigned long size, unsigned long align, | |
1771 | unsigned long *addr, unsigned long min); | |
1772 | ||
1773 | static inline | |
bd669475 AB |
1774 | efi_status_t efi_low_alloc(efi_system_table_t *sys_table_arg, |
1775 | unsigned long size, unsigned long align, | |
220dd769 KS |
1776 | unsigned long *addr) |
1777 | { | |
1778 | /* | |
1779 | * Don't allocate at 0x0. It will confuse code that | |
1780 | * checks pointers against NULL. Skip the first 8 | |
1781 | * bytes so we start at a nice even number. | |
1782 | */ | |
1783 | return efi_low_alloc_above(sys_table_arg, size, align, addr, 0x8); | |
1784 | } | |
bd669475 AB |
1785 | |
1786 | efi_status_t efi_high_alloc(efi_system_table_t *sys_table_arg, | |
1787 | unsigned long size, unsigned long align, | |
1788 | unsigned long *addr, unsigned long max); | |
1789 | ||
1790 | efi_status_t efi_relocate_kernel(efi_system_table_t *sys_table_arg, | |
1791 | unsigned long *image_addr, | |
1792 | unsigned long image_size, | |
1793 | unsigned long alloc_size, | |
1794 | unsigned long preferred_addr, | |
220dd769 KS |
1795 | unsigned long alignment, |
1796 | unsigned long min_addr); | |
bd669475 AB |
1797 | |
1798 | efi_status_t handle_cmdline_files(efi_system_table_t *sys_table_arg, | |
1799 | efi_loaded_image_t *image, | |
1800 | char *cmd_line, char *option_string, | |
1801 | unsigned long max_addr, | |
1802 | unsigned long *load_addr, | |
1803 | unsigned long *load_size); | |
1804 | ||
60f38de7 | 1805 | efi_status_t efi_parse_options(char const *cmdline); |
5a17dae4 | 1806 | |
2c23b73c AB |
1807 | efi_status_t efi_setup_gop(efi_system_table_t *sys_table_arg, |
1808 | struct screen_info *si, efi_guid_t *proto, | |
1809 | unsigned long size); | |
1810 | ||
0082517f JHP |
1811 | #ifdef CONFIG_EFI |
1812 | extern bool efi_runtime_disabled(void); | |
1813 | #else | |
1814 | static inline bool efi_runtime_disabled(void) { return true; } | |
1815 | #endif | |
1816 | ||
80e75596 | 1817 | extern void efi_call_virt_check_flags(unsigned long flags, const char *call); |
13b210dd | 1818 | extern unsigned long efi_call_virt_save_flags(void); |
80e75596 | 1819 | |
de8cb458 DH |
1820 | enum efi_secureboot_mode { |
1821 | efi_secureboot_mode_unset, | |
1822 | efi_secureboot_mode_unknown, | |
1823 | efi_secureboot_mode_disabled, | |
1824 | efi_secureboot_mode_enabled, | |
1825 | }; | |
1826 | enum efi_secureboot_mode efi_get_secureboot(efi_system_table_t *sys_table); | |
1827 | ||
ccc829ba MG |
1828 | #ifdef CONFIG_RESET_ATTACK_MITIGATION |
1829 | void efi_enable_reset_attack_mitigation(efi_system_table_t *sys_table_arg); | |
1830 | #else | |
1831 | static inline void | |
1832 | efi_enable_reset_attack_mitigation(efi_system_table_t *sys_table_arg) { } | |
1833 | #endif | |
1834 | ||
0d959814 DB |
1835 | efi_status_t efi_random_get_seed(efi_system_table_t *sys_table_arg); |
1836 | ||
33b6d034 TW |
1837 | void efi_retrieve_tpm2_eventlog(efi_system_table_t *sys_table); |
1838 | ||
80e75596 AT |
1839 | /* |
1840 | * Arch code can implement the following three template macros, avoiding | |
1841 | * reptition for the void/non-void return cases of {__,}efi_call_virt(): | |
1842 | * | |
1843 | * * arch_efi_call_virt_setup() | |
1844 | * | |
1845 | * Sets up the environment for the call (e.g. switching page tables, | |
1846 | * allowing kernel-mode use of floating point, if required). | |
1847 | * | |
1848 | * * arch_efi_call_virt() | |
1849 | * | |
1850 | * Performs the call. The last expression in the macro must be the call | |
1851 | * itself, allowing the logic to be shared by the void and non-void | |
1852 | * cases. | |
1853 | * | |
1854 | * * arch_efi_call_virt_teardown() | |
1855 | * | |
1856 | * Restores the usual kernel environment once the call has returned. | |
1857 | */ | |
1858 | ||
1859 | #define efi_call_virt_pointer(p, f, args...) \ | |
1860 | ({ \ | |
1861 | efi_status_t __s; \ | |
1862 | unsigned long __flags; \ | |
1863 | \ | |
1864 | arch_efi_call_virt_setup(); \ | |
1865 | \ | |
13b210dd | 1866 | __flags = efi_call_virt_save_flags(); \ |
80e75596 AT |
1867 | __s = arch_efi_call_virt(p, f, args); \ |
1868 | efi_call_virt_check_flags(__flags, __stringify(f)); \ | |
1869 | \ | |
1870 | arch_efi_call_virt_teardown(); \ | |
1871 | \ | |
1872 | __s; \ | |
1873 | }) | |
1874 | ||
1875 | #define __efi_call_virt_pointer(p, f, args...) \ | |
1876 | ({ \ | |
1877 | unsigned long __flags; \ | |
1878 | \ | |
1879 | arch_efi_call_virt_setup(); \ | |
1880 | \ | |
13b210dd | 1881 | __flags = efi_call_virt_save_flags(); \ |
80e75596 AT |
1882 | arch_efi_call_virt(p, f, args); \ |
1883 | efi_call_virt_check_flags(__flags, __stringify(f)); \ | |
1884 | \ | |
1885 | arch_efi_call_virt_teardown(); \ | |
1886 | }) | |
1887 | ||
fc07716b JH |
1888 | typedef efi_status_t (*efi_exit_boot_map_processing)( |
1889 | efi_system_table_t *sys_table_arg, | |
1890 | struct efi_boot_memmap *map, | |
1891 | void *priv); | |
1892 | ||
1893 | efi_status_t efi_exit_boot_services(efi_system_table_t *sys_table, | |
1894 | void *handle, | |
1895 | struct efi_boot_memmap *map, | |
1896 | void *priv, | |
1897 | efi_exit_boot_map_processing priv_func); | |
63625988 | 1898 | |
c2ceb5fd AB |
1899 | #define EFI_RANDOM_SEED_SIZE 64U |
1900 | ||
63625988 AB |
1901 | struct linux_efi_random_seed { |
1902 | u32 size; | |
1903 | u8 bits[]; | |
1904 | }; | |
1905 | ||
33b6d034 TW |
1906 | struct linux_efi_tpm_eventlog { |
1907 | u32 size; | |
166a2809 | 1908 | u32 final_events_preboot_size; |
33b6d034 TW |
1909 | u8 version; |
1910 | u8 log[]; | |
1911 | }; | |
1912 | ||
1913 | extern int efi_tpm_eventlog_init(void); | |
1914 | ||
c46f3405 MG |
1915 | struct efi_tcg2_final_events_table { |
1916 | u64 version; | |
1917 | u64 nr_events; | |
1918 | u8 events[]; | |
1919 | }; | |
1920 | extern int efi_tpm_final_log_size; | |
1921 | ||
1c5fecb6 N |
1922 | extern unsigned long rci2_table_phys; |
1923 | ||
3425d934 SP |
1924 | /* |
1925 | * efi_runtime_service() function identifiers. | |
1926 | * "NONE" is used by efi_recover_from_page_fault() to check if the page | |
1927 | * fault happened while executing an efi runtime service. | |
1928 | */ | |
9dbbedaa | 1929 | enum efi_rts_ids { |
5c418dc7 AR |
1930 | EFI_NONE, |
1931 | EFI_GET_TIME, | |
1932 | EFI_SET_TIME, | |
1933 | EFI_GET_WAKEUP_TIME, | |
1934 | EFI_SET_WAKEUP_TIME, | |
1935 | EFI_GET_VARIABLE, | |
1936 | EFI_GET_NEXT_VARIABLE, | |
1937 | EFI_SET_VARIABLE, | |
1938 | EFI_QUERY_VARIABLE_INFO, | |
1939 | EFI_GET_NEXT_HIGH_MONO_COUNT, | |
1940 | EFI_RESET_SYSTEM, | |
1941 | EFI_UPDATE_CAPSULE, | |
1942 | EFI_QUERY_CAPSULE_CAPS, | |
9dbbedaa SP |
1943 | }; |
1944 | ||
1945 | /* | |
1946 | * efi_runtime_work: Details of EFI Runtime Service work | |
1947 | * @arg<1-5>: EFI Runtime Service function arguments | |
1948 | * @status: Status of executing EFI Runtime Service | |
1949 | * @efi_rts_id: EFI Runtime Service function identifier | |
1950 | * @efi_rts_comp: Struct used for handling completions | |
1951 | */ | |
1952 | struct efi_runtime_work { | |
1953 | void *arg1; | |
1954 | void *arg2; | |
1955 | void *arg3; | |
1956 | void *arg4; | |
1957 | void *arg5; | |
1958 | efi_status_t status; | |
1959 | struct work_struct work; | |
1960 | enum efi_rts_ids efi_rts_id; | |
1961 | struct completion efi_rts_comp; | |
1962 | }; | |
1963 | ||
1964 | extern struct efi_runtime_work efi_rts_work; | |
1965 | ||
3eb420e7 SP |
1966 | /* Workqueue to queue EFI Runtime Services */ |
1967 | extern struct workqueue_struct *efi_rts_wq; | |
1968 | ||
71e0940d | 1969 | struct linux_efi_memreserve { |
5f0b0ecf AB |
1970 | int size; // allocated size of the array |
1971 | atomic_t count; // number of entries used | |
1972 | phys_addr_t next; // pa of next struct instance | |
1973 | struct { | |
1974 | phys_addr_t base; | |
1975 | phys_addr_t size; | |
1976 | } entry[0]; | |
71e0940d AB |
1977 | }; |
1978 | ||
5f0b0ecf AB |
1979 | #define EFI_MEMRESERVE_SIZE(count) (sizeof(struct linux_efi_memreserve) + \ |
1980 | (count) * sizeof(((struct linux_efi_memreserve *)0)->entry[0])) | |
1981 | ||
80424b02 AB |
1982 | #define EFI_MEMRESERVE_COUNT(size) (((size) - sizeof(struct linux_efi_memreserve)) \ |
1983 | / sizeof(((struct linux_efi_memreserve *)0)->entry[0])) | |
1984 | ||
1da177e4 | 1985 | #endif /* _LINUX_EFI_H */ |