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1 | #ifndef _LINUX_EFI_H | |
2 | #define _LINUX_EFI_H | |
3 | ||
4 | /* | |
5 | * Extensible Firmware Interface | |
6 | * Based on 'Extensible Firmware Interface Specification' version 0.9, April 30, 1999 | |
7 | * | |
8 | * Copyright (C) 1999 VA Linux Systems | |
9 | * Copyright (C) 1999 Walt Drummond <drummond@valinux.com> | |
10 | * Copyright (C) 1999, 2002-2003 Hewlett-Packard Co. | |
11 | * David Mosberger-Tang <davidm@hpl.hp.com> | |
12 | * Stephane Eranian <eranian@hpl.hp.com> | |
13 | */ | |
14 | #include <linux/init.h> | |
15 | #include <linux/string.h> | |
16 | #include <linux/time.h> | |
17 | #include <linux/types.h> | |
18 | #include <linux/proc_fs.h> | |
19 | #include <linux/rtc.h> | |
20 | #include <linux/ioport.h> | |
21 | #include <linux/pfn.h> | |
22 | #include <linux/pstore.h> | |
23 | #include <linux/range.h> | |
24 | #include <linux/reboot.h> | |
25 | #include <linux/uuid.h> | |
26 | #include <linux/screen_info.h> | |
27 | ||
28 | #include <asm/page.h> | |
29 | ||
30 | #define EFI_SUCCESS 0 | |
31 | #define EFI_LOAD_ERROR ( 1 | (1UL << (BITS_PER_LONG-1))) | |
32 | #define EFI_INVALID_PARAMETER ( 2 | (1UL << (BITS_PER_LONG-1))) | |
33 | #define EFI_UNSUPPORTED ( 3 | (1UL << (BITS_PER_LONG-1))) | |
34 | #define EFI_BAD_BUFFER_SIZE ( 4 | (1UL << (BITS_PER_LONG-1))) | |
35 | #define EFI_BUFFER_TOO_SMALL ( 5 | (1UL << (BITS_PER_LONG-1))) | |
36 | #define EFI_NOT_READY ( 6 | (1UL << (BITS_PER_LONG-1))) | |
37 | #define EFI_DEVICE_ERROR ( 7 | (1UL << (BITS_PER_LONG-1))) | |
38 | #define EFI_WRITE_PROTECTED ( 8 | (1UL << (BITS_PER_LONG-1))) | |
39 | #define EFI_OUT_OF_RESOURCES ( 9 | (1UL << (BITS_PER_LONG-1))) | |
40 | #define EFI_NOT_FOUND (14 | (1UL << (BITS_PER_LONG-1))) | |
41 | #define EFI_ABORTED (21 | (1UL << (BITS_PER_LONG-1))) | |
42 | #define EFI_SECURITY_VIOLATION (26 | (1UL << (BITS_PER_LONG-1))) | |
43 | ||
44 | typedef unsigned long efi_status_t; | |
45 | typedef u8 efi_bool_t; | |
46 | typedef u16 efi_char16_t; /* UNICODE character */ | |
47 | typedef u64 efi_physical_addr_t; | |
48 | typedef void *efi_handle_t; | |
49 | ||
50 | typedef uuid_le efi_guid_t; | |
51 | ||
52 | #define EFI_GUID(a,b,c,d0,d1,d2,d3,d4,d5,d6,d7) \ | |
53 | UUID_LE(a, b, c, d0, d1, d2, d3, d4, d5, d6, d7) | |
54 | ||
55 | /* | |
56 | * Generic EFI table header | |
57 | */ | |
58 | typedef struct { | |
59 | u64 signature; | |
60 | u32 revision; | |
61 | u32 headersize; | |
62 | u32 crc32; | |
63 | u32 reserved; | |
64 | } efi_table_hdr_t; | |
65 | ||
66 | /* | |
67 | * Memory map descriptor: | |
68 | */ | |
69 | ||
70 | /* Memory types: */ | |
71 | #define EFI_RESERVED_TYPE 0 | |
72 | #define EFI_LOADER_CODE 1 | |
73 | #define EFI_LOADER_DATA 2 | |
74 | #define EFI_BOOT_SERVICES_CODE 3 | |
75 | #define EFI_BOOT_SERVICES_DATA 4 | |
76 | #define EFI_RUNTIME_SERVICES_CODE 5 | |
77 | #define EFI_RUNTIME_SERVICES_DATA 6 | |
78 | #define EFI_CONVENTIONAL_MEMORY 7 | |
79 | #define EFI_UNUSABLE_MEMORY 8 | |
80 | #define EFI_ACPI_RECLAIM_MEMORY 9 | |
81 | #define EFI_ACPI_MEMORY_NVS 10 | |
82 | #define EFI_MEMORY_MAPPED_IO 11 | |
83 | #define EFI_MEMORY_MAPPED_IO_PORT_SPACE 12 | |
84 | #define EFI_PAL_CODE 13 | |
85 | #define EFI_PERSISTENT_MEMORY 14 | |
86 | #define EFI_MAX_MEMORY_TYPE 15 | |
87 | ||
88 | /* Attribute values: */ | |
89 | #define EFI_MEMORY_UC ((u64)0x0000000000000001ULL) /* uncached */ | |
90 | #define EFI_MEMORY_WC ((u64)0x0000000000000002ULL) /* write-coalescing */ | |
91 | #define EFI_MEMORY_WT ((u64)0x0000000000000004ULL) /* write-through */ | |
92 | #define EFI_MEMORY_WB ((u64)0x0000000000000008ULL) /* write-back */ | |
93 | #define EFI_MEMORY_UCE ((u64)0x0000000000000010ULL) /* uncached, exported */ | |
94 | #define EFI_MEMORY_WP ((u64)0x0000000000001000ULL) /* write-protect */ | |
95 | #define EFI_MEMORY_RP ((u64)0x0000000000002000ULL) /* read-protect */ | |
96 | #define EFI_MEMORY_XP ((u64)0x0000000000004000ULL) /* execute-protect */ | |
97 | #define EFI_MEMORY_NV ((u64)0x0000000000008000ULL) /* non-volatile */ | |
98 | #define EFI_MEMORY_MORE_RELIABLE \ | |
99 | ((u64)0x0000000000010000ULL) /* higher reliability */ | |
100 | #define EFI_MEMORY_RO ((u64)0x0000000000020000ULL) /* read-only */ | |
101 | #define EFI_MEMORY_RUNTIME ((u64)0x8000000000000000ULL) /* range requires runtime mapping */ | |
102 | #define EFI_MEMORY_DESCRIPTOR_VERSION 1 | |
103 | ||
104 | #define EFI_PAGE_SHIFT 12 | |
105 | #define EFI_PAGE_SIZE (1UL << EFI_PAGE_SHIFT) | |
106 | ||
107 | typedef struct { | |
108 | u32 type; | |
109 | u32 pad; | |
110 | u64 phys_addr; | |
111 | u64 virt_addr; | |
112 | u64 num_pages; | |
113 | u64 attribute; | |
114 | } efi_memory_desc_t; | |
115 | ||
116 | typedef struct { | |
117 | efi_guid_t guid; | |
118 | u32 headersize; | |
119 | u32 flags; | |
120 | u32 imagesize; | |
121 | } efi_capsule_header_t; | |
122 | ||
123 | struct efi_boot_memmap { | |
124 | efi_memory_desc_t **map; | |
125 | unsigned long *map_size; | |
126 | unsigned long *desc_size; | |
127 | u32 *desc_ver; | |
128 | unsigned long *key_ptr; | |
129 | unsigned long *buff_size; | |
130 | }; | |
131 | ||
132 | /* | |
133 | * EFI capsule flags | |
134 | */ | |
135 | #define EFI_CAPSULE_PERSIST_ACROSS_RESET 0x00010000 | |
136 | #define EFI_CAPSULE_POPULATE_SYSTEM_TABLE 0x00020000 | |
137 | #define EFI_CAPSULE_INITIATE_RESET 0x00040000 | |
138 | ||
139 | /* | |
140 | * Allocation types for calls to boottime->allocate_pages. | |
141 | */ | |
142 | #define EFI_ALLOCATE_ANY_PAGES 0 | |
143 | #define EFI_ALLOCATE_MAX_ADDRESS 1 | |
144 | #define EFI_ALLOCATE_ADDRESS 2 | |
145 | #define EFI_MAX_ALLOCATE_TYPE 3 | |
146 | ||
147 | typedef int (*efi_freemem_callback_t) (u64 start, u64 end, void *arg); | |
148 | ||
149 | /* | |
150 | * Types and defines for Time Services | |
151 | */ | |
152 | #define EFI_TIME_ADJUST_DAYLIGHT 0x1 | |
153 | #define EFI_TIME_IN_DAYLIGHT 0x2 | |
154 | #define EFI_UNSPECIFIED_TIMEZONE 0x07ff | |
155 | ||
156 | typedef struct { | |
157 | u16 year; | |
158 | u8 month; | |
159 | u8 day; | |
160 | u8 hour; | |
161 | u8 minute; | |
162 | u8 second; | |
163 | u8 pad1; | |
164 | u32 nanosecond; | |
165 | s16 timezone; | |
166 | u8 daylight; | |
167 | u8 pad2; | |
168 | } efi_time_t; | |
169 | ||
170 | typedef struct { | |
171 | u32 resolution; | |
172 | u32 accuracy; | |
173 | u8 sets_to_zero; | |
174 | } efi_time_cap_t; | |
175 | ||
176 | typedef struct { | |
177 | efi_table_hdr_t hdr; | |
178 | u32 raise_tpl; | |
179 | u32 restore_tpl; | |
180 | u32 allocate_pages; | |
181 | u32 free_pages; | |
182 | u32 get_memory_map; | |
183 | u32 allocate_pool; | |
184 | u32 free_pool; | |
185 | u32 create_event; | |
186 | u32 set_timer; | |
187 | u32 wait_for_event; | |
188 | u32 signal_event; | |
189 | u32 close_event; | |
190 | u32 check_event; | |
191 | u32 install_protocol_interface; | |
192 | u32 reinstall_protocol_interface; | |
193 | u32 uninstall_protocol_interface; | |
194 | u32 handle_protocol; | |
195 | u32 __reserved; | |
196 | u32 register_protocol_notify; | |
197 | u32 locate_handle; | |
198 | u32 locate_device_path; | |
199 | u32 install_configuration_table; | |
200 | u32 load_image; | |
201 | u32 start_image; | |
202 | u32 exit; | |
203 | u32 unload_image; | |
204 | u32 exit_boot_services; | |
205 | u32 get_next_monotonic_count; | |
206 | u32 stall; | |
207 | u32 set_watchdog_timer; | |
208 | u32 connect_controller; | |
209 | u32 disconnect_controller; | |
210 | u32 open_protocol; | |
211 | u32 close_protocol; | |
212 | u32 open_protocol_information; | |
213 | u32 protocols_per_handle; | |
214 | u32 locate_handle_buffer; | |
215 | u32 locate_protocol; | |
216 | u32 install_multiple_protocol_interfaces; | |
217 | u32 uninstall_multiple_protocol_interfaces; | |
218 | u32 calculate_crc32; | |
219 | u32 copy_mem; | |
220 | u32 set_mem; | |
221 | u32 create_event_ex; | |
222 | } __packed efi_boot_services_32_t; | |
223 | ||
224 | typedef struct { | |
225 | efi_table_hdr_t hdr; | |
226 | u64 raise_tpl; | |
227 | u64 restore_tpl; | |
228 | u64 allocate_pages; | |
229 | u64 free_pages; | |
230 | u64 get_memory_map; | |
231 | u64 allocate_pool; | |
232 | u64 free_pool; | |
233 | u64 create_event; | |
234 | u64 set_timer; | |
235 | u64 wait_for_event; | |
236 | u64 signal_event; | |
237 | u64 close_event; | |
238 | u64 check_event; | |
239 | u64 install_protocol_interface; | |
240 | u64 reinstall_protocol_interface; | |
241 | u64 uninstall_protocol_interface; | |
242 | u64 handle_protocol; | |
243 | u64 __reserved; | |
244 | u64 register_protocol_notify; | |
245 | u64 locate_handle; | |
246 | u64 locate_device_path; | |
247 | u64 install_configuration_table; | |
248 | u64 load_image; | |
249 | u64 start_image; | |
250 | u64 exit; | |
251 | u64 unload_image; | |
252 | u64 exit_boot_services; | |
253 | u64 get_next_monotonic_count; | |
254 | u64 stall; | |
255 | u64 set_watchdog_timer; | |
256 | u64 connect_controller; | |
257 | u64 disconnect_controller; | |
258 | u64 open_protocol; | |
259 | u64 close_protocol; | |
260 | u64 open_protocol_information; | |
261 | u64 protocols_per_handle; | |
262 | u64 locate_handle_buffer; | |
263 | u64 locate_protocol; | |
264 | u64 install_multiple_protocol_interfaces; | |
265 | u64 uninstall_multiple_protocol_interfaces; | |
266 | u64 calculate_crc32; | |
267 | u64 copy_mem; | |
268 | u64 set_mem; | |
269 | u64 create_event_ex; | |
270 | } __packed efi_boot_services_64_t; | |
271 | ||
272 | /* | |
273 | * EFI Boot Services table | |
274 | */ | |
275 | typedef struct { | |
276 | efi_table_hdr_t hdr; | |
277 | void *raise_tpl; | |
278 | void *restore_tpl; | |
279 | efi_status_t (*allocate_pages)(int, int, unsigned long, | |
280 | efi_physical_addr_t *); | |
281 | efi_status_t (*free_pages)(efi_physical_addr_t, unsigned long); | |
282 | efi_status_t (*get_memory_map)(unsigned long *, void *, unsigned long *, | |
283 | unsigned long *, u32 *); | |
284 | efi_status_t (*allocate_pool)(int, unsigned long, void **); | |
285 | efi_status_t (*free_pool)(void *); | |
286 | void *create_event; | |
287 | void *set_timer; | |
288 | void *wait_for_event; | |
289 | void *signal_event; | |
290 | void *close_event; | |
291 | void *check_event; | |
292 | void *install_protocol_interface; | |
293 | void *reinstall_protocol_interface; | |
294 | void *uninstall_protocol_interface; | |
295 | efi_status_t (*handle_protocol)(efi_handle_t, efi_guid_t *, void **); | |
296 | void *__reserved; | |
297 | void *register_protocol_notify; | |
298 | efi_status_t (*locate_handle)(int, efi_guid_t *, void *, | |
299 | unsigned long *, efi_handle_t *); | |
300 | void *locate_device_path; | |
301 | efi_status_t (*install_configuration_table)(efi_guid_t *, void *); | |
302 | void *load_image; | |
303 | void *start_image; | |
304 | void *exit; | |
305 | void *unload_image; | |
306 | efi_status_t (*exit_boot_services)(efi_handle_t, unsigned long); | |
307 | void *get_next_monotonic_count; | |
308 | void *stall; | |
309 | void *set_watchdog_timer; | |
310 | void *connect_controller; | |
311 | void *disconnect_controller; | |
312 | void *open_protocol; | |
313 | void *close_protocol; | |
314 | void *open_protocol_information; | |
315 | void *protocols_per_handle; | |
316 | void *locate_handle_buffer; | |
317 | efi_status_t (*locate_protocol)(efi_guid_t *, void *, void **); | |
318 | void *install_multiple_protocol_interfaces; | |
319 | void *uninstall_multiple_protocol_interfaces; | |
320 | void *calculate_crc32; | |
321 | void *copy_mem; | |
322 | void *set_mem; | |
323 | void *create_event_ex; | |
324 | } efi_boot_services_t; | |
325 | ||
326 | typedef enum { | |
327 | EfiPciIoWidthUint8, | |
328 | EfiPciIoWidthUint16, | |
329 | EfiPciIoWidthUint32, | |
330 | EfiPciIoWidthUint64, | |
331 | EfiPciIoWidthFifoUint8, | |
332 | EfiPciIoWidthFifoUint16, | |
333 | EfiPciIoWidthFifoUint32, | |
334 | EfiPciIoWidthFifoUint64, | |
335 | EfiPciIoWidthFillUint8, | |
336 | EfiPciIoWidthFillUint16, | |
337 | EfiPciIoWidthFillUint32, | |
338 | EfiPciIoWidthFillUint64, | |
339 | EfiPciIoWidthMaximum | |
340 | } EFI_PCI_IO_PROTOCOL_WIDTH; | |
341 | ||
342 | typedef enum { | |
343 | EfiPciIoAttributeOperationGet, | |
344 | EfiPciIoAttributeOperationSet, | |
345 | EfiPciIoAttributeOperationEnable, | |
346 | EfiPciIoAttributeOperationDisable, | |
347 | EfiPciIoAttributeOperationSupported, | |
348 | EfiPciIoAttributeOperationMaximum | |
349 | } EFI_PCI_IO_PROTOCOL_ATTRIBUTE_OPERATION; | |
350 | ||
351 | typedef struct { | |
352 | u32 read; | |
353 | u32 write; | |
354 | } efi_pci_io_protocol_access_32_t; | |
355 | ||
356 | typedef struct { | |
357 | u64 read; | |
358 | u64 write; | |
359 | } efi_pci_io_protocol_access_64_t; | |
360 | ||
361 | typedef struct { | |
362 | void *read; | |
363 | void *write; | |
364 | } efi_pci_io_protocol_access_t; | |
365 | ||
366 | typedef struct { | |
367 | u32 poll_mem; | |
368 | u32 poll_io; | |
369 | efi_pci_io_protocol_access_32_t mem; | |
370 | efi_pci_io_protocol_access_32_t io; | |
371 | efi_pci_io_protocol_access_32_t pci; | |
372 | u32 copy_mem; | |
373 | u32 map; | |
374 | u32 unmap; | |
375 | u32 allocate_buffer; | |
376 | u32 free_buffer; | |
377 | u32 flush; | |
378 | u32 get_location; | |
379 | u32 attributes; | |
380 | u32 get_bar_attributes; | |
381 | u32 set_bar_attributes; | |
382 | uint64_t romsize; | |
383 | void *romimage; | |
384 | } efi_pci_io_protocol_32; | |
385 | ||
386 | typedef struct { | |
387 | u64 poll_mem; | |
388 | u64 poll_io; | |
389 | efi_pci_io_protocol_access_64_t mem; | |
390 | efi_pci_io_protocol_access_64_t io; | |
391 | efi_pci_io_protocol_access_64_t pci; | |
392 | u64 copy_mem; | |
393 | u64 map; | |
394 | u64 unmap; | |
395 | u64 allocate_buffer; | |
396 | u64 free_buffer; | |
397 | u64 flush; | |
398 | u64 get_location; | |
399 | u64 attributes; | |
400 | u64 get_bar_attributes; | |
401 | u64 set_bar_attributes; | |
402 | uint64_t romsize; | |
403 | void *romimage; | |
404 | } efi_pci_io_protocol_64; | |
405 | ||
406 | typedef struct { | |
407 | void *poll_mem; | |
408 | void *poll_io; | |
409 | efi_pci_io_protocol_access_t mem; | |
410 | efi_pci_io_protocol_access_t io; | |
411 | efi_pci_io_protocol_access_t pci; | |
412 | void *copy_mem; | |
413 | void *map; | |
414 | void *unmap; | |
415 | void *allocate_buffer; | |
416 | void *free_buffer; | |
417 | void *flush; | |
418 | void *get_location; | |
419 | void *attributes; | |
420 | void *get_bar_attributes; | |
421 | void *set_bar_attributes; | |
422 | uint64_t romsize; | |
423 | void *romimage; | |
424 | } efi_pci_io_protocol; | |
425 | ||
426 | #define EFI_PCI_IO_ATTRIBUTE_ISA_MOTHERBOARD_IO 0x0001 | |
427 | #define EFI_PCI_IO_ATTRIBUTE_ISA_IO 0x0002 | |
428 | #define EFI_PCI_IO_ATTRIBUTE_VGA_PALETTE_IO 0x0004 | |
429 | #define EFI_PCI_IO_ATTRIBUTE_VGA_MEMORY 0x0008 | |
430 | #define EFI_PCI_IO_ATTRIBUTE_VGA_IO 0x0010 | |
431 | #define EFI_PCI_IO_ATTRIBUTE_IDE_PRIMARY_IO 0x0020 | |
432 | #define EFI_PCI_IO_ATTRIBUTE_IDE_SECONDARY_IO 0x0040 | |
433 | #define EFI_PCI_IO_ATTRIBUTE_MEMORY_WRITE_COMBINE 0x0080 | |
434 | #define EFI_PCI_IO_ATTRIBUTE_IO 0x0100 | |
435 | #define EFI_PCI_IO_ATTRIBUTE_MEMORY 0x0200 | |
436 | #define EFI_PCI_IO_ATTRIBUTE_BUS_MASTER 0x0400 | |
437 | #define EFI_PCI_IO_ATTRIBUTE_MEMORY_CACHED 0x0800 | |
438 | #define EFI_PCI_IO_ATTRIBUTE_MEMORY_DISABLE 0x1000 | |
439 | #define EFI_PCI_IO_ATTRIBUTE_EMBEDDED_DEVICE 0x2000 | |
440 | #define EFI_PCI_IO_ATTRIBUTE_EMBEDDED_ROM 0x4000 | |
441 | #define EFI_PCI_IO_ATTRIBUTE_DUAL_ADDRESS_CYCLE 0x8000 | |
442 | #define EFI_PCI_IO_ATTRIBUTE_ISA_IO_16 0x10000 | |
443 | #define EFI_PCI_IO_ATTRIBUTE_VGA_PALETTE_IO_16 0x20000 | |
444 | #define EFI_PCI_IO_ATTRIBUTE_VGA_IO_16 0x40000 | |
445 | ||
446 | typedef struct { | |
447 | u32 version; | |
448 | u32 get; | |
449 | u32 set; | |
450 | u32 del; | |
451 | u32 get_all; | |
452 | } apple_properties_protocol_32_t; | |
453 | ||
454 | typedef struct { | |
455 | u64 version; | |
456 | u64 get; | |
457 | u64 set; | |
458 | u64 del; | |
459 | u64 get_all; | |
460 | } apple_properties_protocol_64_t; | |
461 | ||
462 | /* | |
463 | * Types and defines for EFI ResetSystem | |
464 | */ | |
465 | #define EFI_RESET_COLD 0 | |
466 | #define EFI_RESET_WARM 1 | |
467 | #define EFI_RESET_SHUTDOWN 2 | |
468 | ||
469 | /* | |
470 | * EFI Runtime Services table | |
471 | */ | |
472 | #define EFI_RUNTIME_SERVICES_SIGNATURE ((u64)0x5652453544e5552ULL) | |
473 | #define EFI_RUNTIME_SERVICES_REVISION 0x00010000 | |
474 | ||
475 | typedef struct { | |
476 | efi_table_hdr_t hdr; | |
477 | u32 get_time; | |
478 | u32 set_time; | |
479 | u32 get_wakeup_time; | |
480 | u32 set_wakeup_time; | |
481 | u32 set_virtual_address_map; | |
482 | u32 convert_pointer; | |
483 | u32 get_variable; | |
484 | u32 get_next_variable; | |
485 | u32 set_variable; | |
486 | u32 get_next_high_mono_count; | |
487 | u32 reset_system; | |
488 | u32 update_capsule; | |
489 | u32 query_capsule_caps; | |
490 | u32 query_variable_info; | |
491 | } efi_runtime_services_32_t; | |
492 | ||
493 | typedef struct { | |
494 | efi_table_hdr_t hdr; | |
495 | u64 get_time; | |
496 | u64 set_time; | |
497 | u64 get_wakeup_time; | |
498 | u64 set_wakeup_time; | |
499 | u64 set_virtual_address_map; | |
500 | u64 convert_pointer; | |
501 | u64 get_variable; | |
502 | u64 get_next_variable; | |
503 | u64 set_variable; | |
504 | u64 get_next_high_mono_count; | |
505 | u64 reset_system; | |
506 | u64 update_capsule; | |
507 | u64 query_capsule_caps; | |
508 | u64 query_variable_info; | |
509 | } efi_runtime_services_64_t; | |
510 | ||
511 | typedef struct { | |
512 | efi_table_hdr_t hdr; | |
513 | void *get_time; | |
514 | void *set_time; | |
515 | void *get_wakeup_time; | |
516 | void *set_wakeup_time; | |
517 | void *set_virtual_address_map; | |
518 | void *convert_pointer; | |
519 | void *get_variable; | |
520 | void *get_next_variable; | |
521 | void *set_variable; | |
522 | void *get_next_high_mono_count; | |
523 | void *reset_system; | |
524 | void *update_capsule; | |
525 | void *query_capsule_caps; | |
526 | void *query_variable_info; | |
527 | } efi_runtime_services_t; | |
528 | ||
529 | typedef efi_status_t efi_get_time_t (efi_time_t *tm, efi_time_cap_t *tc); | |
530 | typedef efi_status_t efi_set_time_t (efi_time_t *tm); | |
531 | typedef efi_status_t efi_get_wakeup_time_t (efi_bool_t *enabled, efi_bool_t *pending, | |
532 | efi_time_t *tm); | |
533 | typedef efi_status_t efi_set_wakeup_time_t (efi_bool_t enabled, efi_time_t *tm); | |
534 | typedef efi_status_t efi_get_variable_t (efi_char16_t *name, efi_guid_t *vendor, u32 *attr, | |
535 | unsigned long *data_size, void *data); | |
536 | typedef efi_status_t efi_get_next_variable_t (unsigned long *name_size, efi_char16_t *name, | |
537 | efi_guid_t *vendor); | |
538 | typedef efi_status_t efi_set_variable_t (efi_char16_t *name, efi_guid_t *vendor, | |
539 | u32 attr, unsigned long data_size, | |
540 | void *data); | |
541 | typedef efi_status_t efi_get_next_high_mono_count_t (u32 *count); | |
542 | typedef void efi_reset_system_t (int reset_type, efi_status_t status, | |
543 | unsigned long data_size, efi_char16_t *data); | |
544 | typedef efi_status_t efi_set_virtual_address_map_t (unsigned long memory_map_size, | |
545 | unsigned long descriptor_size, | |
546 | u32 descriptor_version, | |
547 | efi_memory_desc_t *virtual_map); | |
548 | typedef efi_status_t efi_query_variable_info_t(u32 attr, | |
549 | u64 *storage_space, | |
550 | u64 *remaining_space, | |
551 | u64 *max_variable_size); | |
552 | typedef efi_status_t efi_update_capsule_t(efi_capsule_header_t **capsules, | |
553 | unsigned long count, | |
554 | unsigned long sg_list); | |
555 | typedef efi_status_t efi_query_capsule_caps_t(efi_capsule_header_t **capsules, | |
556 | unsigned long count, | |
557 | u64 *max_size, | |
558 | int *reset_type); | |
559 | typedef efi_status_t efi_query_variable_store_t(u32 attributes, | |
560 | unsigned long size, | |
561 | bool nonblocking); | |
562 | ||
563 | void efi_native_runtime_setup(void); | |
564 | ||
565 | /* | |
566 | * EFI Configuration Table and GUID definitions | |
567 | * | |
568 | * These are all defined in a single line to make them easier to | |
569 | * grep for and to see them at a glance - while still having a | |
570 | * similar structure to the definitions in the spec. | |
571 | * | |
572 | * Here's how they are structured: | |
573 | * | |
574 | * GUID: 12345678-1234-1234-1234-123456789012 | |
575 | * Spec: | |
576 | * #define EFI_SOME_PROTOCOL_GUID \ | |
577 | * {0x12345678,0x1234,0x1234,\ | |
578 | * {0x12,0x34,0x12,0x34,0x56,0x78,0x90,0x12}} | |
579 | * Here: | |
580 | * #define SOME_PROTOCOL_GUID EFI_GUID(0x12345678, 0x1234, 0x1234, 0x12, 0x34, 0x12, 0x34, 0x56, 0x78, 0x90, 0x12) | |
581 | * ^ tabs ^extra space | |
582 | * | |
583 | * Note that the 'extra space' separates the values at the same place | |
584 | * where the UEFI SPEC breaks the line. | |
585 | */ | |
586 | #define NULL_GUID EFI_GUID(0x00000000, 0x0000, 0x0000, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00) | |
587 | #define MPS_TABLE_GUID EFI_GUID(0xeb9d2d2f, 0x2d88, 0x11d3, 0x9a, 0x16, 0x00, 0x90, 0x27, 0x3f, 0xc1, 0x4d) | |
588 | #define ACPI_TABLE_GUID EFI_GUID(0xeb9d2d30, 0x2d88, 0x11d3, 0x9a, 0x16, 0x00, 0x90, 0x27, 0x3f, 0xc1, 0x4d) | |
589 | #define ACPI_20_TABLE_GUID EFI_GUID(0x8868e871, 0xe4f1, 0x11d3, 0xbc, 0x22, 0x00, 0x80, 0xc7, 0x3c, 0x88, 0x81) | |
590 | #define SMBIOS_TABLE_GUID EFI_GUID(0xeb9d2d31, 0x2d88, 0x11d3, 0x9a, 0x16, 0x00, 0x90, 0x27, 0x3f, 0xc1, 0x4d) | |
591 | #define SMBIOS3_TABLE_GUID EFI_GUID(0xf2fd1544, 0x9794, 0x4a2c, 0x99, 0x2e, 0xe5, 0xbb, 0xcf, 0x20, 0xe3, 0x94) | |
592 | #define SAL_SYSTEM_TABLE_GUID EFI_GUID(0xeb9d2d32, 0x2d88, 0x11d3, 0x9a, 0x16, 0x00, 0x90, 0x27, 0x3f, 0xc1, 0x4d) | |
593 | #define HCDP_TABLE_GUID EFI_GUID(0xf951938d, 0x620b, 0x42ef, 0x82, 0x79, 0xa8, 0x4b, 0x79, 0x61, 0x78, 0x98) | |
594 | #define UGA_IO_PROTOCOL_GUID EFI_GUID(0x61a4d49e, 0x6f68, 0x4f1b, 0xb9, 0x22, 0xa8, 0x6e, 0xed, 0x0b, 0x07, 0xa2) | |
595 | #define EFI_GLOBAL_VARIABLE_GUID EFI_GUID(0x8be4df61, 0x93ca, 0x11d2, 0xaa, 0x0d, 0x00, 0xe0, 0x98, 0x03, 0x2b, 0x8c) | |
596 | #define UV_SYSTEM_TABLE_GUID EFI_GUID(0x3b13a7d4, 0x633e, 0x11dd, 0x93, 0xec, 0xda, 0x25, 0x56, 0xd8, 0x95, 0x93) | |
597 | #define LINUX_EFI_CRASH_GUID EFI_GUID(0xcfc8fc79, 0xbe2e, 0x4ddc, 0x97, 0xf0, 0x9f, 0x98, 0xbf, 0xe2, 0x98, 0xa0) | |
598 | #define LOADED_IMAGE_PROTOCOL_GUID EFI_GUID(0x5b1b31a1, 0x9562, 0x11d2, 0x8e, 0x3f, 0x00, 0xa0, 0xc9, 0x69, 0x72, 0x3b) | |
599 | #define EFI_GRAPHICS_OUTPUT_PROTOCOL_GUID EFI_GUID(0x9042a9de, 0x23dc, 0x4a38, 0x96, 0xfb, 0x7a, 0xde, 0xd0, 0x80, 0x51, 0x6a) | |
600 | #define EFI_UGA_PROTOCOL_GUID EFI_GUID(0x982c298b, 0xf4fa, 0x41cb, 0xb8, 0x38, 0x77, 0xaa, 0x68, 0x8f, 0xb8, 0x39) | |
601 | #define EFI_PCI_IO_PROTOCOL_GUID EFI_GUID(0x4cf5b200, 0x68b8, 0x4ca5, 0x9e, 0xec, 0xb2, 0x3e, 0x3f, 0x50, 0x02, 0x9a) | |
602 | #define EFI_FILE_INFO_ID EFI_GUID(0x09576e92, 0x6d3f, 0x11d2, 0x8e, 0x39, 0x00, 0xa0, 0xc9, 0x69, 0x72, 0x3b) | |
603 | #define EFI_SYSTEM_RESOURCE_TABLE_GUID EFI_GUID(0xb122a263, 0x3661, 0x4f68, 0x99, 0x29, 0x78, 0xf8, 0xb0, 0xd6, 0x21, 0x80) | |
604 | #define EFI_FILE_SYSTEM_GUID EFI_GUID(0x964e5b22, 0x6459, 0x11d2, 0x8e, 0x39, 0x00, 0xa0, 0xc9, 0x69, 0x72, 0x3b) | |
605 | #define DEVICE_TREE_GUID EFI_GUID(0xb1b621d5, 0xf19c, 0x41a5, 0x83, 0x0b, 0xd9, 0x15, 0x2c, 0x69, 0xaa, 0xe0) | |
606 | #define EFI_PROPERTIES_TABLE_GUID EFI_GUID(0x880aaca3, 0x4adc, 0x4a04, 0x90, 0x79, 0xb7, 0x47, 0x34, 0x08, 0x25, 0xe5) | |
607 | #define EFI_RNG_PROTOCOL_GUID EFI_GUID(0x3152bca5, 0xeade, 0x433d, 0x86, 0x2e, 0xc0, 0x1c, 0xdc, 0x29, 0x1f, 0x44) | |
608 | #define EFI_RNG_ALGORITHM_RAW EFI_GUID(0xe43176d7, 0xb6e8, 0x4827, 0xb7, 0x84, 0x7f, 0xfd, 0xc4, 0xb6, 0x85, 0x61) | |
609 | #define EFI_MEMORY_ATTRIBUTES_TABLE_GUID EFI_GUID(0xdcfa911d, 0x26eb, 0x469f, 0xa2, 0x20, 0x38, 0xb7, 0xdc, 0x46, 0x12, 0x20) | |
610 | #define EFI_CONSOLE_OUT_DEVICE_GUID EFI_GUID(0xd3b36f2c, 0xd551, 0x11d4, 0x9a, 0x46, 0x00, 0x90, 0x27, 0x3f, 0xc1, 0x4d) | |
611 | #define APPLE_PROPERTIES_PROTOCOL_GUID EFI_GUID(0x91bd12fe, 0xf6c3, 0x44fb, 0xa5, 0xb7, 0x51, 0x22, 0xab, 0x30, 0x3a, 0xe0) | |
612 | ||
613 | /* | |
614 | * This GUID is used to pass to the kernel proper the struct screen_info | |
615 | * structure that was populated by the stub based on the GOP protocol instance | |
616 | * associated with ConOut | |
617 | */ | |
618 | #define LINUX_EFI_ARM_SCREEN_INFO_TABLE_GUID EFI_GUID(0xe03fc20a, 0x85dc, 0x406e, 0xb9, 0x0e, 0x4a, 0xb5, 0x02, 0x37, 0x1d, 0x95) | |
619 | #define LINUX_EFI_LOADER_ENTRY_GUID EFI_GUID(0x4a67b082, 0x0a4c, 0x41cf, 0xb6, 0xc7, 0x44, 0x0b, 0x29, 0xbb, 0x8c, 0x4f) | |
620 | #define LINUX_EFI_RANDOM_SEED_TABLE_GUID EFI_GUID(0x1ce1e5bc, 0x7ceb, 0x42f2, 0x81, 0xe5, 0x8a, 0xad, 0xf1, 0x80, 0xf5, 0x7b) | |
621 | ||
622 | typedef struct { | |
623 | efi_guid_t guid; | |
624 | u64 table; | |
625 | } efi_config_table_64_t; | |
626 | ||
627 | typedef struct { | |
628 | efi_guid_t guid; | |
629 | u32 table; | |
630 | } efi_config_table_32_t; | |
631 | ||
632 | typedef struct { | |
633 | efi_guid_t guid; | |
634 | unsigned long table; | |
635 | } efi_config_table_t; | |
636 | ||
637 | typedef struct { | |
638 | efi_guid_t guid; | |
639 | const char *name; | |
640 | unsigned long *ptr; | |
641 | } efi_config_table_type_t; | |
642 | ||
643 | #define EFI_SYSTEM_TABLE_SIGNATURE ((u64)0x5453595320494249ULL) | |
644 | ||
645 | #define EFI_2_30_SYSTEM_TABLE_REVISION ((2 << 16) | (30)) | |
646 | #define EFI_2_20_SYSTEM_TABLE_REVISION ((2 << 16) | (20)) | |
647 | #define EFI_2_10_SYSTEM_TABLE_REVISION ((2 << 16) | (10)) | |
648 | #define EFI_2_00_SYSTEM_TABLE_REVISION ((2 << 16) | (00)) | |
649 | #define EFI_1_10_SYSTEM_TABLE_REVISION ((1 << 16) | (10)) | |
650 | #define EFI_1_02_SYSTEM_TABLE_REVISION ((1 << 16) | (02)) | |
651 | ||
652 | typedef struct { | |
653 | efi_table_hdr_t hdr; | |
654 | u64 fw_vendor; /* physical addr of CHAR16 vendor string */ | |
655 | u32 fw_revision; | |
656 | u32 __pad1; | |
657 | u64 con_in_handle; | |
658 | u64 con_in; | |
659 | u64 con_out_handle; | |
660 | u64 con_out; | |
661 | u64 stderr_handle; | |
662 | u64 stderr; | |
663 | u64 runtime; | |
664 | u64 boottime; | |
665 | u32 nr_tables; | |
666 | u32 __pad2; | |
667 | u64 tables; | |
668 | } efi_system_table_64_t; | |
669 | ||
670 | typedef struct { | |
671 | efi_table_hdr_t hdr; | |
672 | u32 fw_vendor; /* physical addr of CHAR16 vendor string */ | |
673 | u32 fw_revision; | |
674 | u32 con_in_handle; | |
675 | u32 con_in; | |
676 | u32 con_out_handle; | |
677 | u32 con_out; | |
678 | u32 stderr_handle; | |
679 | u32 stderr; | |
680 | u32 runtime; | |
681 | u32 boottime; | |
682 | u32 nr_tables; | |
683 | u32 tables; | |
684 | } efi_system_table_32_t; | |
685 | ||
686 | typedef struct { | |
687 | efi_table_hdr_t hdr; | |
688 | unsigned long fw_vendor; /* physical addr of CHAR16 vendor string */ | |
689 | u32 fw_revision; | |
690 | unsigned long con_in_handle; | |
691 | unsigned long con_in; | |
692 | unsigned long con_out_handle; | |
693 | unsigned long con_out; | |
694 | unsigned long stderr_handle; | |
695 | unsigned long stderr; | |
696 | efi_runtime_services_t *runtime; | |
697 | efi_boot_services_t *boottime; | |
698 | unsigned long nr_tables; | |
699 | unsigned long tables; | |
700 | } efi_system_table_t; | |
701 | ||
702 | /* | |
703 | * Architecture independent structure for describing a memory map for the | |
704 | * benefit of efi_memmap_init_early(), saving us the need to pass four | |
705 | * parameters. | |
706 | */ | |
707 | struct efi_memory_map_data { | |
708 | phys_addr_t phys_map; | |
709 | unsigned long size; | |
710 | unsigned long desc_version; | |
711 | unsigned long desc_size; | |
712 | }; | |
713 | ||
714 | struct efi_memory_map { | |
715 | phys_addr_t phys_map; | |
716 | void *map; | |
717 | void *map_end; | |
718 | int nr_map; | |
719 | unsigned long desc_version; | |
720 | unsigned long desc_size; | |
721 | bool late; | |
722 | }; | |
723 | ||
724 | struct efi_mem_range { | |
725 | struct range range; | |
726 | u64 attribute; | |
727 | }; | |
728 | ||
729 | struct efi_fdt_params { | |
730 | u64 system_table; | |
731 | u64 mmap; | |
732 | u32 mmap_size; | |
733 | u32 desc_size; | |
734 | u32 desc_ver; | |
735 | }; | |
736 | ||
737 | typedef struct { | |
738 | u32 revision; | |
739 | u32 parent_handle; | |
740 | u32 system_table; | |
741 | u32 device_handle; | |
742 | u32 file_path; | |
743 | u32 reserved; | |
744 | u32 load_options_size; | |
745 | u32 load_options; | |
746 | u32 image_base; | |
747 | __aligned_u64 image_size; | |
748 | unsigned int image_code_type; | |
749 | unsigned int image_data_type; | |
750 | unsigned long unload; | |
751 | } efi_loaded_image_32_t; | |
752 | ||
753 | typedef struct { | |
754 | u32 revision; | |
755 | u64 parent_handle; | |
756 | u64 system_table; | |
757 | u64 device_handle; | |
758 | u64 file_path; | |
759 | u64 reserved; | |
760 | u32 load_options_size; | |
761 | u64 load_options; | |
762 | u64 image_base; | |
763 | __aligned_u64 image_size; | |
764 | unsigned int image_code_type; | |
765 | unsigned int image_data_type; | |
766 | unsigned long unload; | |
767 | } efi_loaded_image_64_t; | |
768 | ||
769 | typedef struct { | |
770 | u32 revision; | |
771 | void *parent_handle; | |
772 | efi_system_table_t *system_table; | |
773 | void *device_handle; | |
774 | void *file_path; | |
775 | void *reserved; | |
776 | u32 load_options_size; | |
777 | void *load_options; | |
778 | void *image_base; | |
779 | __aligned_u64 image_size; | |
780 | unsigned int image_code_type; | |
781 | unsigned int image_data_type; | |
782 | unsigned long unload; | |
783 | } efi_loaded_image_t; | |
784 | ||
785 | ||
786 | typedef struct { | |
787 | u64 size; | |
788 | u64 file_size; | |
789 | u64 phys_size; | |
790 | efi_time_t create_time; | |
791 | efi_time_t last_access_time; | |
792 | efi_time_t modification_time; | |
793 | __aligned_u64 attribute; | |
794 | efi_char16_t filename[1]; | |
795 | } efi_file_info_t; | |
796 | ||
797 | typedef struct { | |
798 | u64 revision; | |
799 | u32 open; | |
800 | u32 close; | |
801 | u32 delete; | |
802 | u32 read; | |
803 | u32 write; | |
804 | u32 get_position; | |
805 | u32 set_position; | |
806 | u32 get_info; | |
807 | u32 set_info; | |
808 | u32 flush; | |
809 | } efi_file_handle_32_t; | |
810 | ||
811 | typedef struct { | |
812 | u64 revision; | |
813 | u64 open; | |
814 | u64 close; | |
815 | u64 delete; | |
816 | u64 read; | |
817 | u64 write; | |
818 | u64 get_position; | |
819 | u64 set_position; | |
820 | u64 get_info; | |
821 | u64 set_info; | |
822 | u64 flush; | |
823 | } efi_file_handle_64_t; | |
824 | ||
825 | typedef struct _efi_file_handle { | |
826 | u64 revision; | |
827 | efi_status_t (*open)(struct _efi_file_handle *, | |
828 | struct _efi_file_handle **, | |
829 | efi_char16_t *, u64, u64); | |
830 | efi_status_t (*close)(struct _efi_file_handle *); | |
831 | void *delete; | |
832 | efi_status_t (*read)(struct _efi_file_handle *, unsigned long *, | |
833 | void *); | |
834 | void *write; | |
835 | void *get_position; | |
836 | void *set_position; | |
837 | efi_status_t (*get_info)(struct _efi_file_handle *, efi_guid_t *, | |
838 | unsigned long *, void *); | |
839 | void *set_info; | |
840 | void *flush; | |
841 | } efi_file_handle_t; | |
842 | ||
843 | typedef struct _efi_file_io_interface { | |
844 | u64 revision; | |
845 | int (*open_volume)(struct _efi_file_io_interface *, | |
846 | efi_file_handle_t **); | |
847 | } efi_file_io_interface_t; | |
848 | ||
849 | #define EFI_FILE_MODE_READ 0x0000000000000001 | |
850 | #define EFI_FILE_MODE_WRITE 0x0000000000000002 | |
851 | #define EFI_FILE_MODE_CREATE 0x8000000000000000 | |
852 | ||
853 | typedef struct { | |
854 | u32 version; | |
855 | u32 length; | |
856 | u64 memory_protection_attribute; | |
857 | } efi_properties_table_t; | |
858 | ||
859 | #define EFI_PROPERTIES_TABLE_VERSION 0x00010000 | |
860 | #define EFI_PROPERTIES_RUNTIME_MEMORY_PROTECTION_NON_EXECUTABLE_PE_DATA 0x1 | |
861 | ||
862 | #define EFI_INVALID_TABLE_ADDR (~0UL) | |
863 | ||
864 | typedef struct { | |
865 | u32 version; | |
866 | u32 num_entries; | |
867 | u32 desc_size; | |
868 | u32 reserved; | |
869 | efi_memory_desc_t entry[0]; | |
870 | } efi_memory_attributes_table_t; | |
871 | ||
872 | /* | |
873 | * All runtime access to EFI goes through this structure: | |
874 | */ | |
875 | extern struct efi { | |
876 | efi_system_table_t *systab; /* EFI system table */ | |
877 | unsigned int runtime_version; /* Runtime services version */ | |
878 | unsigned long mps; /* MPS table */ | |
879 | unsigned long acpi; /* ACPI table (IA64 ext 0.71) */ | |
880 | unsigned long acpi20; /* ACPI table (ACPI 2.0) */ | |
881 | unsigned long smbios; /* SMBIOS table (32 bit entry point) */ | |
882 | unsigned long smbios3; /* SMBIOS table (64 bit entry point) */ | |
883 | unsigned long sal_systab; /* SAL system table */ | |
884 | unsigned long boot_info; /* boot info table */ | |
885 | unsigned long hcdp; /* HCDP table */ | |
886 | unsigned long uga; /* UGA table */ | |
887 | unsigned long uv_systab; /* UV system table */ | |
888 | unsigned long fw_vendor; /* fw_vendor */ | |
889 | unsigned long runtime; /* runtime table */ | |
890 | unsigned long config_table; /* config tables */ | |
891 | unsigned long esrt; /* ESRT table */ | |
892 | unsigned long properties_table; /* properties table */ | |
893 | unsigned long mem_attr_table; /* memory attributes table */ | |
894 | unsigned long rng_seed; /* UEFI firmware random seed */ | |
895 | efi_get_time_t *get_time; | |
896 | efi_set_time_t *set_time; | |
897 | efi_get_wakeup_time_t *get_wakeup_time; | |
898 | efi_set_wakeup_time_t *set_wakeup_time; | |
899 | efi_get_variable_t *get_variable; | |
900 | efi_get_next_variable_t *get_next_variable; | |
901 | efi_set_variable_t *set_variable; | |
902 | efi_set_variable_t *set_variable_nonblocking; | |
903 | efi_query_variable_info_t *query_variable_info; | |
904 | efi_query_variable_info_t *query_variable_info_nonblocking; | |
905 | efi_update_capsule_t *update_capsule; | |
906 | efi_query_capsule_caps_t *query_capsule_caps; | |
907 | efi_get_next_high_mono_count_t *get_next_high_mono_count; | |
908 | efi_reset_system_t *reset_system; | |
909 | efi_set_virtual_address_map_t *set_virtual_address_map; | |
910 | struct efi_memory_map memmap; | |
911 | unsigned long flags; | |
912 | } efi; | |
913 | ||
914 | static inline int | |
915 | efi_guidcmp (efi_guid_t left, efi_guid_t right) | |
916 | { | |
917 | return memcmp(&left, &right, sizeof (efi_guid_t)); | |
918 | } | |
919 | ||
920 | static inline char * | |
921 | efi_guid_to_str(efi_guid_t *guid, char *out) | |
922 | { | |
923 | sprintf(out, "%pUl", guid->b); | |
924 | return out; | |
925 | } | |
926 | ||
927 | extern void efi_init (void); | |
928 | extern void *efi_get_pal_addr (void); | |
929 | extern void efi_map_pal_code (void); | |
930 | extern void efi_memmap_walk (efi_freemem_callback_t callback, void *arg); | |
931 | extern void efi_gettimeofday (struct timespec64 *ts); | |
932 | extern void efi_enter_virtual_mode (void); /* switch EFI to virtual mode, if possible */ | |
933 | #ifdef CONFIG_X86 | |
934 | extern void efi_late_init(void); | |
935 | extern void efi_free_boot_services(void); | |
936 | extern efi_status_t efi_query_variable_store(u32 attributes, | |
937 | unsigned long size, | |
938 | bool nonblocking); | |
939 | extern void efi_find_mirror(void); | |
940 | #else | |
941 | static inline void efi_late_init(void) {} | |
942 | static inline void efi_free_boot_services(void) {} | |
943 | ||
944 | static inline efi_status_t efi_query_variable_store(u32 attributes, | |
945 | unsigned long size, | |
946 | bool nonblocking) | |
947 | { | |
948 | return EFI_SUCCESS; | |
949 | } | |
950 | #endif | |
951 | extern void __iomem *efi_lookup_mapped_addr(u64 phys_addr); | |
952 | ||
953 | extern int __init efi_memmap_init_early(struct efi_memory_map_data *data); | |
954 | extern int __init efi_memmap_init_late(phys_addr_t addr, unsigned long size); | |
955 | extern void __init efi_memmap_unmap(void); | |
956 | extern int __init efi_memmap_install(phys_addr_t addr, unsigned int nr_map); | |
957 | extern int __init efi_memmap_split_count(efi_memory_desc_t *md, | |
958 | struct range *range); | |
959 | extern void __init efi_memmap_insert(struct efi_memory_map *old_memmap, | |
960 | void *buf, struct efi_mem_range *mem); | |
961 | ||
962 | extern int efi_config_init(efi_config_table_type_t *arch_tables); | |
963 | #ifdef CONFIG_EFI_ESRT | |
964 | extern void __init efi_esrt_init(void); | |
965 | #else | |
966 | static inline void efi_esrt_init(void) { } | |
967 | #endif | |
968 | extern int efi_config_parse_tables(void *config_tables, int count, int sz, | |
969 | efi_config_table_type_t *arch_tables); | |
970 | extern u64 efi_get_iobase (void); | |
971 | extern u32 efi_mem_type (unsigned long phys_addr); | |
972 | extern u64 efi_mem_attributes (unsigned long phys_addr); | |
973 | extern u64 efi_mem_attribute (unsigned long phys_addr, unsigned long size); | |
974 | extern int __init efi_uart_console_only (void); | |
975 | extern u64 efi_mem_desc_end(efi_memory_desc_t *md); | |
976 | extern int efi_mem_desc_lookup(u64 phys_addr, efi_memory_desc_t *out_md); | |
977 | extern void efi_mem_reserve(phys_addr_t addr, u64 size); | |
978 | extern void efi_initialize_iomem_resources(struct resource *code_resource, | |
979 | struct resource *data_resource, struct resource *bss_resource); | |
980 | extern void efi_reserve_boot_services(void); | |
981 | extern int efi_get_fdt_params(struct efi_fdt_params *params); | |
982 | extern struct kobject *efi_kobj; | |
983 | ||
984 | extern int efi_reboot_quirk_mode; | |
985 | extern bool efi_poweroff_required(void); | |
986 | ||
987 | #ifdef CONFIG_EFI_FAKE_MEMMAP | |
988 | extern void __init efi_fake_memmap(void); | |
989 | #else | |
990 | static inline void efi_fake_memmap(void) { } | |
991 | #endif | |
992 | ||
993 | /* | |
994 | * efi_memattr_perm_setter - arch specific callback function passed into | |
995 | * efi_memattr_apply_permissions() that updates the | |
996 | * mapping permissions described by the second | |
997 | * argument in the page tables referred to by the | |
998 | * first argument. | |
999 | */ | |
1000 | typedef int (*efi_memattr_perm_setter)(struct mm_struct *, efi_memory_desc_t *); | |
1001 | ||
1002 | extern int efi_memattr_init(void); | |
1003 | extern int efi_memattr_apply_permissions(struct mm_struct *mm, | |
1004 | efi_memattr_perm_setter fn); | |
1005 | ||
1006 | /* Iterate through an efi_memory_map */ | |
1007 | #define for_each_efi_memory_desc_in_map(m, md) \ | |
1008 | for ((md) = (m)->map; \ | |
1009 | (md) && ((void *)(md) + (m)->desc_size) <= (m)->map_end; \ | |
1010 | (md) = (void *)(md) + (m)->desc_size) | |
1011 | ||
1012 | /** | |
1013 | * for_each_efi_memory_desc - iterate over descriptors in efi.memmap | |
1014 | * @md: the efi_memory_desc_t * iterator | |
1015 | * | |
1016 | * Once the loop finishes @md must not be accessed. | |
1017 | */ | |
1018 | #define for_each_efi_memory_desc(md) \ | |
1019 | for_each_efi_memory_desc_in_map(&efi.memmap, md) | |
1020 | ||
1021 | /* | |
1022 | * Format an EFI memory descriptor's type and attributes to a user-provided | |
1023 | * character buffer, as per snprintf(), and return the buffer. | |
1024 | */ | |
1025 | char * __init efi_md_typeattr_format(char *buf, size_t size, | |
1026 | const efi_memory_desc_t *md); | |
1027 | ||
1028 | /** | |
1029 | * efi_range_is_wc - check the WC bit on an address range | |
1030 | * @start: starting kvirt address | |
1031 | * @len: length of range | |
1032 | * | |
1033 | * Consult the EFI memory map and make sure it's ok to set this range WC. | |
1034 | * Returns true or false. | |
1035 | */ | |
1036 | static inline int efi_range_is_wc(unsigned long start, unsigned long len) | |
1037 | { | |
1038 | unsigned long i; | |
1039 | ||
1040 | for (i = 0; i < len; i += (1UL << EFI_PAGE_SHIFT)) { | |
1041 | unsigned long paddr = __pa(start + i); | |
1042 | if (!(efi_mem_attributes(paddr) & EFI_MEMORY_WC)) | |
1043 | return 0; | |
1044 | } | |
1045 | /* The range checked out */ | |
1046 | return 1; | |
1047 | } | |
1048 | ||
1049 | #ifdef CONFIG_EFI_PCDP | |
1050 | extern int __init efi_setup_pcdp_console(char *); | |
1051 | #endif | |
1052 | ||
1053 | /* | |
1054 | * We play games with efi_enabled so that the compiler will, if | |
1055 | * possible, remove EFI-related code altogether. | |
1056 | */ | |
1057 | #define EFI_BOOT 0 /* Were we booted from EFI? */ | |
1058 | #define EFI_CONFIG_TABLES 2 /* Can we use EFI config tables? */ | |
1059 | #define EFI_RUNTIME_SERVICES 3 /* Can we use runtime services? */ | |
1060 | #define EFI_MEMMAP 4 /* Can we use EFI memory map? */ | |
1061 | #define EFI_64BIT 5 /* Is the firmware 64-bit? */ | |
1062 | #define EFI_PARAVIRT 6 /* Access is via a paravirt interface */ | |
1063 | #define EFI_ARCH_1 7 /* First arch-specific bit */ | |
1064 | #define EFI_DBG 8 /* Print additional debug info at runtime */ | |
1065 | #define EFI_NX_PE_DATA 9 /* Can runtime data regions be mapped non-executable? */ | |
1066 | ||
1067 | #ifdef CONFIG_EFI | |
1068 | /* | |
1069 | * Test whether the above EFI_* bits are enabled. | |
1070 | */ | |
1071 | static inline bool efi_enabled(int feature) | |
1072 | { | |
1073 | return test_bit(feature, &efi.flags) != 0; | |
1074 | } | |
1075 | extern void efi_reboot(enum reboot_mode reboot_mode, const char *__unused); | |
1076 | #else | |
1077 | static inline bool efi_enabled(int feature) | |
1078 | { | |
1079 | return false; | |
1080 | } | |
1081 | static inline void | |
1082 | efi_reboot(enum reboot_mode reboot_mode, const char *__unused) {} | |
1083 | ||
1084 | static inline bool | |
1085 | efi_capsule_pending(int *reset_type) | |
1086 | { | |
1087 | return false; | |
1088 | } | |
1089 | #endif | |
1090 | ||
1091 | extern int efi_status_to_err(efi_status_t status); | |
1092 | ||
1093 | /* | |
1094 | * Variable Attributes | |
1095 | */ | |
1096 | #define EFI_VARIABLE_NON_VOLATILE 0x0000000000000001 | |
1097 | #define EFI_VARIABLE_BOOTSERVICE_ACCESS 0x0000000000000002 | |
1098 | #define EFI_VARIABLE_RUNTIME_ACCESS 0x0000000000000004 | |
1099 | #define EFI_VARIABLE_HARDWARE_ERROR_RECORD 0x0000000000000008 | |
1100 | #define EFI_VARIABLE_AUTHENTICATED_WRITE_ACCESS 0x0000000000000010 | |
1101 | #define EFI_VARIABLE_TIME_BASED_AUTHENTICATED_WRITE_ACCESS 0x0000000000000020 | |
1102 | #define EFI_VARIABLE_APPEND_WRITE 0x0000000000000040 | |
1103 | ||
1104 | #define EFI_VARIABLE_MASK (EFI_VARIABLE_NON_VOLATILE | \ | |
1105 | EFI_VARIABLE_BOOTSERVICE_ACCESS | \ | |
1106 | EFI_VARIABLE_RUNTIME_ACCESS | \ | |
1107 | EFI_VARIABLE_HARDWARE_ERROR_RECORD | \ | |
1108 | EFI_VARIABLE_AUTHENTICATED_WRITE_ACCESS | \ | |
1109 | EFI_VARIABLE_TIME_BASED_AUTHENTICATED_WRITE_ACCESS | \ | |
1110 | EFI_VARIABLE_APPEND_WRITE) | |
1111 | /* | |
1112 | * Length of a GUID string (strlen("aaaaaaaa-bbbb-cccc-dddd-eeeeeeeeeeee")) | |
1113 | * not including trailing NUL | |
1114 | */ | |
1115 | #define EFI_VARIABLE_GUID_LEN UUID_STRING_LEN | |
1116 | ||
1117 | /* | |
1118 | * The type of search to perform when calling boottime->locate_handle | |
1119 | */ | |
1120 | #define EFI_LOCATE_ALL_HANDLES 0 | |
1121 | #define EFI_LOCATE_BY_REGISTER_NOTIFY 1 | |
1122 | #define EFI_LOCATE_BY_PROTOCOL 2 | |
1123 | ||
1124 | /* | |
1125 | * EFI Device Path information | |
1126 | */ | |
1127 | #define EFI_DEV_HW 0x01 | |
1128 | #define EFI_DEV_PCI 1 | |
1129 | #define EFI_DEV_PCCARD 2 | |
1130 | #define EFI_DEV_MEM_MAPPED 3 | |
1131 | #define EFI_DEV_VENDOR 4 | |
1132 | #define EFI_DEV_CONTROLLER 5 | |
1133 | #define EFI_DEV_ACPI 0x02 | |
1134 | #define EFI_DEV_BASIC_ACPI 1 | |
1135 | #define EFI_DEV_EXPANDED_ACPI 2 | |
1136 | #define EFI_DEV_MSG 0x03 | |
1137 | #define EFI_DEV_MSG_ATAPI 1 | |
1138 | #define EFI_DEV_MSG_SCSI 2 | |
1139 | #define EFI_DEV_MSG_FC 3 | |
1140 | #define EFI_DEV_MSG_1394 4 | |
1141 | #define EFI_DEV_MSG_USB 5 | |
1142 | #define EFI_DEV_MSG_USB_CLASS 15 | |
1143 | #define EFI_DEV_MSG_I20 6 | |
1144 | #define EFI_DEV_MSG_MAC 11 | |
1145 | #define EFI_DEV_MSG_IPV4 12 | |
1146 | #define EFI_DEV_MSG_IPV6 13 | |
1147 | #define EFI_DEV_MSG_INFINIBAND 9 | |
1148 | #define EFI_DEV_MSG_UART 14 | |
1149 | #define EFI_DEV_MSG_VENDOR 10 | |
1150 | #define EFI_DEV_MEDIA 0x04 | |
1151 | #define EFI_DEV_MEDIA_HARD_DRIVE 1 | |
1152 | #define EFI_DEV_MEDIA_CDROM 2 | |
1153 | #define EFI_DEV_MEDIA_VENDOR 3 | |
1154 | #define EFI_DEV_MEDIA_FILE 4 | |
1155 | #define EFI_DEV_MEDIA_PROTOCOL 5 | |
1156 | #define EFI_DEV_BIOS_BOOT 0x05 | |
1157 | #define EFI_DEV_END_PATH 0x7F | |
1158 | #define EFI_DEV_END_PATH2 0xFF | |
1159 | #define EFI_DEV_END_INSTANCE 0x01 | |
1160 | #define EFI_DEV_END_ENTIRE 0xFF | |
1161 | ||
1162 | struct efi_generic_dev_path { | |
1163 | u8 type; | |
1164 | u8 sub_type; | |
1165 | u16 length; | |
1166 | } __attribute ((packed)); | |
1167 | ||
1168 | struct efi_dev_path { | |
1169 | u8 type; /* can be replaced with unnamed */ | |
1170 | u8 sub_type; /* struct efi_generic_dev_path; */ | |
1171 | u16 length; /* once we've moved to -std=c11 */ | |
1172 | union { | |
1173 | struct { | |
1174 | u32 hid; | |
1175 | u32 uid; | |
1176 | } acpi; | |
1177 | struct { | |
1178 | u8 fn; | |
1179 | u8 dev; | |
1180 | } pci; | |
1181 | }; | |
1182 | } __attribute ((packed)); | |
1183 | ||
1184 | #if IS_ENABLED(CONFIG_EFI_DEV_PATH_PARSER) | |
1185 | struct device *efi_get_device_by_path(struct efi_dev_path **node, size_t *len); | |
1186 | #endif | |
1187 | ||
1188 | static inline void memrange_efi_to_native(u64 *addr, u64 *npages) | |
1189 | { | |
1190 | *npages = PFN_UP(*addr + (*npages<<EFI_PAGE_SHIFT)) - PFN_DOWN(*addr); | |
1191 | *addr &= PAGE_MASK; | |
1192 | } | |
1193 | ||
1194 | /* | |
1195 | * EFI Variable support. | |
1196 | * | |
1197 | * Different firmware drivers can expose their EFI-like variables using | |
1198 | * the following. | |
1199 | */ | |
1200 | ||
1201 | struct efivar_operations { | |
1202 | efi_get_variable_t *get_variable; | |
1203 | efi_get_next_variable_t *get_next_variable; | |
1204 | efi_set_variable_t *set_variable; | |
1205 | efi_set_variable_t *set_variable_nonblocking; | |
1206 | efi_query_variable_store_t *query_variable_store; | |
1207 | }; | |
1208 | ||
1209 | struct efivars { | |
1210 | struct kset *kset; | |
1211 | struct kobject *kobject; | |
1212 | const struct efivar_operations *ops; | |
1213 | }; | |
1214 | ||
1215 | /* | |
1216 | * The maximum size of VariableName + Data = 1024 | |
1217 | * Therefore, it's reasonable to save that much | |
1218 | * space in each part of the structure, | |
1219 | * and we use a page for reading/writing. | |
1220 | */ | |
1221 | ||
1222 | #define EFI_VAR_NAME_LEN 1024 | |
1223 | ||
1224 | struct efi_variable { | |
1225 | efi_char16_t VariableName[EFI_VAR_NAME_LEN/sizeof(efi_char16_t)]; | |
1226 | efi_guid_t VendorGuid; | |
1227 | unsigned long DataSize; | |
1228 | __u8 Data[1024]; | |
1229 | efi_status_t Status; | |
1230 | __u32 Attributes; | |
1231 | } __attribute__((packed)); | |
1232 | ||
1233 | struct efivar_entry { | |
1234 | struct efi_variable var; | |
1235 | struct list_head list; | |
1236 | struct kobject kobj; | |
1237 | bool scanning; | |
1238 | bool deleting; | |
1239 | }; | |
1240 | ||
1241 | struct efi_simple_text_output_protocol_32 { | |
1242 | u32 reset; | |
1243 | u32 output_string; | |
1244 | u32 test_string; | |
1245 | }; | |
1246 | ||
1247 | struct efi_simple_text_output_protocol_64 { | |
1248 | u64 reset; | |
1249 | u64 output_string; | |
1250 | u64 test_string; | |
1251 | }; | |
1252 | ||
1253 | struct efi_simple_text_output_protocol { | |
1254 | void *reset; | |
1255 | efi_status_t (*output_string)(void *, void *); | |
1256 | void *test_string; | |
1257 | }; | |
1258 | ||
1259 | #define PIXEL_RGB_RESERVED_8BIT_PER_COLOR 0 | |
1260 | #define PIXEL_BGR_RESERVED_8BIT_PER_COLOR 1 | |
1261 | #define PIXEL_BIT_MASK 2 | |
1262 | #define PIXEL_BLT_ONLY 3 | |
1263 | #define PIXEL_FORMAT_MAX 4 | |
1264 | ||
1265 | struct efi_pixel_bitmask { | |
1266 | u32 red_mask; | |
1267 | u32 green_mask; | |
1268 | u32 blue_mask; | |
1269 | u32 reserved_mask; | |
1270 | }; | |
1271 | ||
1272 | struct efi_graphics_output_mode_info { | |
1273 | u32 version; | |
1274 | u32 horizontal_resolution; | |
1275 | u32 vertical_resolution; | |
1276 | int pixel_format; | |
1277 | struct efi_pixel_bitmask pixel_information; | |
1278 | u32 pixels_per_scan_line; | |
1279 | } __packed; | |
1280 | ||
1281 | struct efi_graphics_output_protocol_mode_32 { | |
1282 | u32 max_mode; | |
1283 | u32 mode; | |
1284 | u32 info; | |
1285 | u32 size_of_info; | |
1286 | u64 frame_buffer_base; | |
1287 | u32 frame_buffer_size; | |
1288 | } __packed; | |
1289 | ||
1290 | struct efi_graphics_output_protocol_mode_64 { | |
1291 | u32 max_mode; | |
1292 | u32 mode; | |
1293 | u64 info; | |
1294 | u64 size_of_info; | |
1295 | u64 frame_buffer_base; | |
1296 | u64 frame_buffer_size; | |
1297 | } __packed; | |
1298 | ||
1299 | struct efi_graphics_output_protocol_mode { | |
1300 | u32 max_mode; | |
1301 | u32 mode; | |
1302 | unsigned long info; | |
1303 | unsigned long size_of_info; | |
1304 | u64 frame_buffer_base; | |
1305 | unsigned long frame_buffer_size; | |
1306 | } __packed; | |
1307 | ||
1308 | struct efi_graphics_output_protocol_32 { | |
1309 | u32 query_mode; | |
1310 | u32 set_mode; | |
1311 | u32 blt; | |
1312 | u32 mode; | |
1313 | }; | |
1314 | ||
1315 | struct efi_graphics_output_protocol_64 { | |
1316 | u64 query_mode; | |
1317 | u64 set_mode; | |
1318 | u64 blt; | |
1319 | u64 mode; | |
1320 | }; | |
1321 | ||
1322 | struct efi_graphics_output_protocol { | |
1323 | unsigned long query_mode; | |
1324 | unsigned long set_mode; | |
1325 | unsigned long blt; | |
1326 | struct efi_graphics_output_protocol_mode *mode; | |
1327 | }; | |
1328 | ||
1329 | typedef efi_status_t (*efi_graphics_output_protocol_query_mode)( | |
1330 | struct efi_graphics_output_protocol *, u32, unsigned long *, | |
1331 | struct efi_graphics_output_mode_info **); | |
1332 | ||
1333 | extern struct list_head efivar_sysfs_list; | |
1334 | ||
1335 | static inline void | |
1336 | efivar_unregister(struct efivar_entry *var) | |
1337 | { | |
1338 | kobject_put(&var->kobj); | |
1339 | } | |
1340 | ||
1341 | int efivars_register(struct efivars *efivars, | |
1342 | const struct efivar_operations *ops, | |
1343 | struct kobject *kobject); | |
1344 | int efivars_unregister(struct efivars *efivars); | |
1345 | struct kobject *efivars_kobject(void); | |
1346 | ||
1347 | int efivar_init(int (*func)(efi_char16_t *, efi_guid_t, unsigned long, void *), | |
1348 | void *data, bool duplicates, struct list_head *head); | |
1349 | ||
1350 | int efivar_entry_add(struct efivar_entry *entry, struct list_head *head); | |
1351 | int efivar_entry_remove(struct efivar_entry *entry); | |
1352 | ||
1353 | int __efivar_entry_delete(struct efivar_entry *entry); | |
1354 | int efivar_entry_delete(struct efivar_entry *entry); | |
1355 | ||
1356 | int efivar_entry_size(struct efivar_entry *entry, unsigned long *size); | |
1357 | int __efivar_entry_get(struct efivar_entry *entry, u32 *attributes, | |
1358 | unsigned long *size, void *data); | |
1359 | int efivar_entry_get(struct efivar_entry *entry, u32 *attributes, | |
1360 | unsigned long *size, void *data); | |
1361 | int efivar_entry_set(struct efivar_entry *entry, u32 attributes, | |
1362 | unsigned long size, void *data, struct list_head *head); | |
1363 | int efivar_entry_set_get_size(struct efivar_entry *entry, u32 attributes, | |
1364 | unsigned long *size, void *data, bool *set); | |
1365 | int efivar_entry_set_safe(efi_char16_t *name, efi_guid_t vendor, u32 attributes, | |
1366 | bool block, unsigned long size, void *data); | |
1367 | ||
1368 | int efivar_entry_iter_begin(void); | |
1369 | void efivar_entry_iter_end(void); | |
1370 | ||
1371 | int __efivar_entry_iter(int (*func)(struct efivar_entry *, void *), | |
1372 | struct list_head *head, void *data, | |
1373 | struct efivar_entry **prev); | |
1374 | int efivar_entry_iter(int (*func)(struct efivar_entry *, void *), | |
1375 | struct list_head *head, void *data); | |
1376 | ||
1377 | struct efivar_entry *efivar_entry_find(efi_char16_t *name, efi_guid_t guid, | |
1378 | struct list_head *head, bool remove); | |
1379 | ||
1380 | bool efivar_validate(efi_guid_t vendor, efi_char16_t *var_name, u8 *data, | |
1381 | unsigned long data_size); | |
1382 | bool efivar_variable_is_removable(efi_guid_t vendor, const char *name, | |
1383 | size_t len); | |
1384 | ||
1385 | extern struct work_struct efivar_work; | |
1386 | void efivar_run_worker(void); | |
1387 | ||
1388 | #if defined(CONFIG_EFI_VARS) || defined(CONFIG_EFI_VARS_MODULE) | |
1389 | int efivars_sysfs_init(void); | |
1390 | ||
1391 | #define EFIVARS_DATA_SIZE_MAX 1024 | |
1392 | ||
1393 | #endif /* CONFIG_EFI_VARS */ | |
1394 | extern bool efi_capsule_pending(int *reset_type); | |
1395 | ||
1396 | extern int efi_capsule_supported(efi_guid_t guid, u32 flags, | |
1397 | size_t size, int *reset); | |
1398 | ||
1399 | extern int efi_capsule_update(efi_capsule_header_t *capsule, | |
1400 | struct page **pages); | |
1401 | ||
1402 | #ifdef CONFIG_EFI_RUNTIME_MAP | |
1403 | int efi_runtime_map_init(struct kobject *); | |
1404 | int efi_get_runtime_map_size(void); | |
1405 | int efi_get_runtime_map_desc_size(void); | |
1406 | int efi_runtime_map_copy(void *buf, size_t bufsz); | |
1407 | #else | |
1408 | static inline int efi_runtime_map_init(struct kobject *kobj) | |
1409 | { | |
1410 | return 0; | |
1411 | } | |
1412 | ||
1413 | static inline int efi_get_runtime_map_size(void) | |
1414 | { | |
1415 | return 0; | |
1416 | } | |
1417 | ||
1418 | static inline int efi_get_runtime_map_desc_size(void) | |
1419 | { | |
1420 | return 0; | |
1421 | } | |
1422 | ||
1423 | static inline int efi_runtime_map_copy(void *buf, size_t bufsz) | |
1424 | { | |
1425 | return 0; | |
1426 | } | |
1427 | ||
1428 | #endif | |
1429 | ||
1430 | /* prototypes shared between arch specific and generic stub code */ | |
1431 | ||
1432 | #define pr_efi(sys_table, msg) efi_printk(sys_table, "EFI stub: "msg) | |
1433 | #define pr_efi_err(sys_table, msg) efi_printk(sys_table, "EFI stub: ERROR: "msg) | |
1434 | ||
1435 | void efi_printk(efi_system_table_t *sys_table_arg, char *str); | |
1436 | ||
1437 | void efi_free(efi_system_table_t *sys_table_arg, unsigned long size, | |
1438 | unsigned long addr); | |
1439 | ||
1440 | char *efi_convert_cmdline(efi_system_table_t *sys_table_arg, | |
1441 | efi_loaded_image_t *image, int *cmd_line_len); | |
1442 | ||
1443 | efi_status_t efi_get_memory_map(efi_system_table_t *sys_table_arg, | |
1444 | struct efi_boot_memmap *map); | |
1445 | ||
1446 | efi_status_t efi_low_alloc(efi_system_table_t *sys_table_arg, | |
1447 | unsigned long size, unsigned long align, | |
1448 | unsigned long *addr); | |
1449 | ||
1450 | efi_status_t efi_high_alloc(efi_system_table_t *sys_table_arg, | |
1451 | unsigned long size, unsigned long align, | |
1452 | unsigned long *addr, unsigned long max); | |
1453 | ||
1454 | efi_status_t efi_relocate_kernel(efi_system_table_t *sys_table_arg, | |
1455 | unsigned long *image_addr, | |
1456 | unsigned long image_size, | |
1457 | unsigned long alloc_size, | |
1458 | unsigned long preferred_addr, | |
1459 | unsigned long alignment); | |
1460 | ||
1461 | efi_status_t handle_cmdline_files(efi_system_table_t *sys_table_arg, | |
1462 | efi_loaded_image_t *image, | |
1463 | char *cmd_line, char *option_string, | |
1464 | unsigned long max_addr, | |
1465 | unsigned long *load_addr, | |
1466 | unsigned long *load_size); | |
1467 | ||
1468 | efi_status_t efi_parse_options(char *cmdline); | |
1469 | ||
1470 | efi_status_t efi_setup_gop(efi_system_table_t *sys_table_arg, | |
1471 | struct screen_info *si, efi_guid_t *proto, | |
1472 | unsigned long size); | |
1473 | ||
1474 | bool efi_runtime_disabled(void); | |
1475 | extern void efi_call_virt_check_flags(unsigned long flags, const char *call); | |
1476 | ||
1477 | /* | |
1478 | * Arch code can implement the following three template macros, avoiding | |
1479 | * reptition for the void/non-void return cases of {__,}efi_call_virt(): | |
1480 | * | |
1481 | * * arch_efi_call_virt_setup() | |
1482 | * | |
1483 | * Sets up the environment for the call (e.g. switching page tables, | |
1484 | * allowing kernel-mode use of floating point, if required). | |
1485 | * | |
1486 | * * arch_efi_call_virt() | |
1487 | * | |
1488 | * Performs the call. The last expression in the macro must be the call | |
1489 | * itself, allowing the logic to be shared by the void and non-void | |
1490 | * cases. | |
1491 | * | |
1492 | * * arch_efi_call_virt_teardown() | |
1493 | * | |
1494 | * Restores the usual kernel environment once the call has returned. | |
1495 | */ | |
1496 | ||
1497 | #define efi_call_virt_pointer(p, f, args...) \ | |
1498 | ({ \ | |
1499 | efi_status_t __s; \ | |
1500 | unsigned long __flags; \ | |
1501 | \ | |
1502 | arch_efi_call_virt_setup(); \ | |
1503 | \ | |
1504 | local_save_flags(__flags); \ | |
1505 | __s = arch_efi_call_virt(p, f, args); \ | |
1506 | efi_call_virt_check_flags(__flags, __stringify(f)); \ | |
1507 | \ | |
1508 | arch_efi_call_virt_teardown(); \ | |
1509 | \ | |
1510 | __s; \ | |
1511 | }) | |
1512 | ||
1513 | #define __efi_call_virt_pointer(p, f, args...) \ | |
1514 | ({ \ | |
1515 | unsigned long __flags; \ | |
1516 | \ | |
1517 | arch_efi_call_virt_setup(); \ | |
1518 | \ | |
1519 | local_save_flags(__flags); \ | |
1520 | arch_efi_call_virt(p, f, args); \ | |
1521 | efi_call_virt_check_flags(__flags, __stringify(f)); \ | |
1522 | \ | |
1523 | arch_efi_call_virt_teardown(); \ | |
1524 | }) | |
1525 | ||
1526 | typedef efi_status_t (*efi_exit_boot_map_processing)( | |
1527 | efi_system_table_t *sys_table_arg, | |
1528 | struct efi_boot_memmap *map, | |
1529 | void *priv); | |
1530 | ||
1531 | efi_status_t efi_exit_boot_services(efi_system_table_t *sys_table, | |
1532 | void *handle, | |
1533 | struct efi_boot_memmap *map, | |
1534 | void *priv, | |
1535 | efi_exit_boot_map_processing priv_func); | |
1536 | ||
1537 | struct linux_efi_random_seed { | |
1538 | u32 size; | |
1539 | u8 bits[]; | |
1540 | }; | |
1541 | ||
1542 | #endif /* _LINUX_EFI_H */ |