1
2#ifndef _LINUX_EFI_H
3#define _LINUX_EFI_H
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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>
22#include <linux/pfn.h>
23#include <linux/pstore.h>
24#include <linux/range.h>
25#include <linux/reboot.h>
26#include <linux/uuid.h>
27#include <linux/screen_info.h>
28
29#include <asm/page.h>
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)))
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)))
41#define EFI_NOT_FOUND (14 | (1UL << (BITS_PER_LONG-1)))
42#define EFI_ABORTED (21 | (1UL << (BITS_PER_LONG-1)))
43#define EFI_SECURITY_VIOLATION (26 | (1UL << (BITS_PER_LONG-1)))
44
45typedef unsigned long efi_status_t;
46typedef u8 efi_bool_t;
47typedef u16 efi_char16_t;
48typedef u64 efi_physical_addr_t;
49typedef void *efi_handle_t;
50
51typedef guid_t efi_guid_t;
52
53#define EFI_GUID(a,b,c,d0,d1,d2,d3,d4,d5,d6,d7) \
54 GUID_INIT(a, b, c, d0, d1, d2, d3, d4, d5, d6, d7)
55
56
57
58
59typedef struct {
60 u64 signature;
61 u32 revision;
62 u32 headersize;
63 u32 crc32;
64 u32 reserved;
65} efi_table_hdr_t;
66
67
68
69
70
71
72#define EFI_RESERVED_TYPE 0
73#define EFI_LOADER_CODE 1
74#define EFI_LOADER_DATA 2
75#define EFI_BOOT_SERVICES_CODE 3
76#define EFI_BOOT_SERVICES_DATA 4
77#define EFI_RUNTIME_SERVICES_CODE 5
78#define EFI_RUNTIME_SERVICES_DATA 6
79#define EFI_CONVENTIONAL_MEMORY 7
80#define EFI_UNUSABLE_MEMORY 8
81#define EFI_ACPI_RECLAIM_MEMORY 9
82#define EFI_ACPI_MEMORY_NVS 10
83#define EFI_MEMORY_MAPPED_IO 11
84#define EFI_MEMORY_MAPPED_IO_PORT_SPACE 12
85#define EFI_PAL_CODE 13
86#define EFI_PERSISTENT_MEMORY 14
87#define EFI_MAX_MEMORY_TYPE 15
88
89
90#define EFI_MEMORY_UC ((u64)0x0000000000000001ULL)
91#define EFI_MEMORY_WC ((u64)0x0000000000000002ULL)
92#define EFI_MEMORY_WT ((u64)0x0000000000000004ULL)
93#define EFI_MEMORY_WB ((u64)0x0000000000000008ULL)
94#define EFI_MEMORY_UCE ((u64)0x0000000000000010ULL)
95#define EFI_MEMORY_WP ((u64)0x0000000000001000ULL)
96#define EFI_MEMORY_RP ((u64)0x0000000000002000ULL)
97#define EFI_MEMORY_XP ((u64)0x0000000000004000ULL)
98#define EFI_MEMORY_NV ((u64)0x0000000000008000ULL)
99#define EFI_MEMORY_MORE_RELIABLE \
100 ((u64)0x0000000000010000ULL)
101#define EFI_MEMORY_RO ((u64)0x0000000000020000ULL)
102#define EFI_MEMORY_RUNTIME ((u64)0x8000000000000000ULL)
103#define EFI_MEMORY_DESCRIPTOR_VERSION 1
104
105#define EFI_PAGE_SHIFT 12
106#define EFI_PAGE_SIZE (1UL << EFI_PAGE_SHIFT)
107#define EFI_PAGES_MAX (U64_MAX >> EFI_PAGE_SHIFT)
108
109typedef struct {
110 u32 type;
111 u32 pad;
112 u64 phys_addr;
113 u64 virt_addr;
114 u64 num_pages;
115 u64 attribute;
116} efi_memory_desc_t;
117
118typedef struct {
119 efi_guid_t guid;
120 u32 headersize;
121 u32 flags;
122 u32 imagesize;
123} efi_capsule_header_t;
124
125struct efi_boot_memmap {
126 efi_memory_desc_t **map;
127 unsigned long *map_size;
128 unsigned long *desc_size;
129 u32 *desc_ver;
130 unsigned long *key_ptr;
131 unsigned long *buff_size;
132};
133
134
135
136
137#define EFI_CAPSULE_PERSIST_ACROSS_RESET 0x00010000
138#define EFI_CAPSULE_POPULATE_SYSTEM_TABLE 0x00020000
139#define EFI_CAPSULE_INITIATE_RESET 0x00040000
140
141struct capsule_info {
142 efi_capsule_header_t header;
143 efi_capsule_header_t *capsule;
144 int reset_type;
145 long index;
146 size_t count;
147 size_t total_size;
148 struct page **pages;
149 phys_addr_t *phys;
150 size_t page_bytes_remain;
151};
152
153int __efi_capsule_setup_info(struct capsule_info *cap_info);
154
155
156
157
158#define EFI_ALLOCATE_ANY_PAGES 0
159#define EFI_ALLOCATE_MAX_ADDRESS 1
160#define EFI_ALLOCATE_ADDRESS 2
161#define EFI_MAX_ALLOCATE_TYPE 3
162
163typedef int (*efi_freemem_callback_t) (u64 start, u64 end, void *arg);
164
165
166
167
168#define EFI_TIME_ADJUST_DAYLIGHT 0x1
169#define EFI_TIME_IN_DAYLIGHT 0x2
170#define EFI_UNSPECIFIED_TIMEZONE 0x07ff
171
172typedef struct {
173 u16 year;
174 u8 month;
175 u8 day;
176 u8 hour;
177 u8 minute;
178 u8 second;
179 u8 pad1;
180 u32 nanosecond;
181 s16 timezone;
182 u8 daylight;
183 u8 pad2;
184} efi_time_t;
185
186typedef struct {
187 u32 resolution;
188 u32 accuracy;
189 u8 sets_to_zero;
190} efi_time_cap_t;
191
192typedef struct {
193 efi_table_hdr_t hdr;
194 u32 raise_tpl;
195 u32 restore_tpl;
196 u32 allocate_pages;
197 u32 free_pages;
198 u32 get_memory_map;
199 u32 allocate_pool;
200 u32 free_pool;
201 u32 create_event;
202 u32 set_timer;
203 u32 wait_for_event;
204 u32 signal_event;
205 u32 close_event;
206 u32 check_event;
207 u32 install_protocol_interface;
208 u32 reinstall_protocol_interface;
209 u32 uninstall_protocol_interface;
210 u32 handle_protocol;
211 u32 __reserved;
212 u32 register_protocol_notify;
213 u32 locate_handle;
214 u32 locate_device_path;
215 u32 install_configuration_table;
216 u32 load_image;
217 u32 start_image;
218 u32 exit;
219 u32 unload_image;
220 u32 exit_boot_services;
221 u32 get_next_monotonic_count;
222 u32 stall;
223 u32 set_watchdog_timer;
224 u32 connect_controller;
225 u32 disconnect_controller;
226 u32 open_protocol;
227 u32 close_protocol;
228 u32 open_protocol_information;
229 u32 protocols_per_handle;
230 u32 locate_handle_buffer;
231 u32 locate_protocol;
232 u32 install_multiple_protocol_interfaces;
233 u32 uninstall_multiple_protocol_interfaces;
234 u32 calculate_crc32;
235 u32 copy_mem;
236 u32 set_mem;
237 u32 create_event_ex;
238} __packed efi_boot_services_32_t;
239
240typedef struct {
241 efi_table_hdr_t hdr;
242 u64 raise_tpl;
243 u64 restore_tpl;
244 u64 allocate_pages;
245 u64 free_pages;
246 u64 get_memory_map;
247 u64 allocate_pool;
248 u64 free_pool;
249 u64 create_event;
250 u64 set_timer;
251 u64 wait_for_event;
252 u64 signal_event;
253 u64 close_event;
254 u64 check_event;
255 u64 install_protocol_interface;
256 u64 reinstall_protocol_interface;
257 u64 uninstall_protocol_interface;
258 u64 handle_protocol;
259 u64 __reserved;
260 u64 register_protocol_notify;
261 u64 locate_handle;
262 u64 locate_device_path;
263 u64 install_configuration_table;
264 u64 load_image;
265 u64 start_image;
266 u64 exit;
267 u64 unload_image;
268 u64 exit_boot_services;
269 u64 get_next_monotonic_count;
270 u64 stall;
271 u64 set_watchdog_timer;
272 u64 connect_controller;
273 u64 disconnect_controller;
274 u64 open_protocol;
275 u64 close_protocol;
276 u64 open_protocol_information;
277 u64 protocols_per_handle;
278 u64 locate_handle_buffer;
279 u64 locate_protocol;
280 u64 install_multiple_protocol_interfaces;
281 u64 uninstall_multiple_protocol_interfaces;
282 u64 calculate_crc32;
283 u64 copy_mem;
284 u64 set_mem;
285 u64 create_event_ex;
286} __packed efi_boot_services_64_t;
287
288
289
290
291typedef struct {
292 efi_table_hdr_t hdr;
293 void *raise_tpl;
294 void *restore_tpl;
295 efi_status_t (*allocate_pages)(int, int, unsigned long,
296 efi_physical_addr_t *);
297 efi_status_t (*free_pages)(efi_physical_addr_t, unsigned long);
298 efi_status_t (*get_memory_map)(unsigned long *, void *, unsigned long *,
299 unsigned long *, u32 *);
300 efi_status_t (*allocate_pool)(int, unsigned long, void **);
301 efi_status_t (*free_pool)(void *);
302 void *create_event;
303 void *set_timer;
304 void *wait_for_event;
305 void *signal_event;
306 void *close_event;
307 void *check_event;
308 void *install_protocol_interface;
309 void *reinstall_protocol_interface;
310 void *uninstall_protocol_interface;
311 efi_status_t (*handle_protocol)(efi_handle_t, efi_guid_t *, void **);
312 void *__reserved;
313 void *register_protocol_notify;
314 efi_status_t (*locate_handle)(int, efi_guid_t *, void *,
315 unsigned long *, efi_handle_t *);
316 void *locate_device_path;
317 efi_status_t (*install_configuration_table)(efi_guid_t *, void *);
318 void *load_image;
319 void *start_image;
320 void *exit;
321 void *unload_image;
322 efi_status_t (*exit_boot_services)(efi_handle_t, unsigned long);
323 void *get_next_monotonic_count;
324 void *stall;
325 void *set_watchdog_timer;
326 void *connect_controller;
327 void *disconnect_controller;
328 void *open_protocol;
329 void *close_protocol;
330 void *open_protocol_information;
331 void *protocols_per_handle;
332 void *locate_handle_buffer;
333 efi_status_t (*locate_protocol)(efi_guid_t *, void *, void **);
334 void *install_multiple_protocol_interfaces;
335 void *uninstall_multiple_protocol_interfaces;
336 void *calculate_crc32;
337 void *copy_mem;
338 void *set_mem;
339 void *create_event_ex;
340} efi_boot_services_t;
341
342typedef enum {
343 EfiPciIoWidthUint8,
344 EfiPciIoWidthUint16,
345 EfiPciIoWidthUint32,
346 EfiPciIoWidthUint64,
347 EfiPciIoWidthFifoUint8,
348 EfiPciIoWidthFifoUint16,
349 EfiPciIoWidthFifoUint32,
350 EfiPciIoWidthFifoUint64,
351 EfiPciIoWidthFillUint8,
352 EfiPciIoWidthFillUint16,
353 EfiPciIoWidthFillUint32,
354 EfiPciIoWidthFillUint64,
355 EfiPciIoWidthMaximum
356} EFI_PCI_IO_PROTOCOL_WIDTH;
357
358typedef enum {
359 EfiPciIoAttributeOperationGet,
360 EfiPciIoAttributeOperationSet,
361 EfiPciIoAttributeOperationEnable,
362 EfiPciIoAttributeOperationDisable,
363 EfiPciIoAttributeOperationSupported,
364 EfiPciIoAttributeOperationMaximum
365} EFI_PCI_IO_PROTOCOL_ATTRIBUTE_OPERATION;
366
367typedef struct {
368 u32 read;
369 u32 write;
370} efi_pci_io_protocol_access_32_t;
371
372typedef struct {
373 u64 read;
374 u64 write;
375} efi_pci_io_protocol_access_64_t;
376
377typedef struct {
378 void *read;
379 void *write;
380} efi_pci_io_protocol_access_t;
381
382typedef struct {
383 u32 poll_mem;
384 u32 poll_io;
385 efi_pci_io_protocol_access_32_t mem;
386 efi_pci_io_protocol_access_32_t io;
387 efi_pci_io_protocol_access_32_t pci;
388 u32 copy_mem;
389 u32 map;
390 u32 unmap;
391 u32 allocate_buffer;
392 u32 free_buffer;
393 u32 flush;
394 u32 get_location;
395 u32 attributes;
396 u32 get_bar_attributes;
397 u32 set_bar_attributes;
398 u64 romsize;
399 u32 romimage;
400} efi_pci_io_protocol_32;
401
402typedef struct {
403 u64 poll_mem;
404 u64 poll_io;
405 efi_pci_io_protocol_access_64_t mem;
406 efi_pci_io_protocol_access_64_t io;
407 efi_pci_io_protocol_access_64_t pci;
408 u64 copy_mem;
409 u64 map;
410 u64 unmap;
411 u64 allocate_buffer;
412 u64 free_buffer;
413 u64 flush;
414 u64 get_location;
415 u64 attributes;
416 u64 get_bar_attributes;
417 u64 set_bar_attributes;
418 u64 romsize;
419 u64 romimage;
420} efi_pci_io_protocol_64;
421
422typedef struct {
423 void *poll_mem;
424 void *poll_io;
425 efi_pci_io_protocol_access_t mem;
426 efi_pci_io_protocol_access_t io;
427 efi_pci_io_protocol_access_t pci;
428 void *copy_mem;
429 void *map;
430 void *unmap;
431 void *allocate_buffer;
432 void *free_buffer;
433 void *flush;
434 void *get_location;
435 void *attributes;
436 void *get_bar_attributes;
437 void *set_bar_attributes;
438 uint64_t romsize;
439 void *romimage;
440} efi_pci_io_protocol;
441
442#define EFI_PCI_IO_ATTRIBUTE_ISA_MOTHERBOARD_IO 0x0001
443#define EFI_PCI_IO_ATTRIBUTE_ISA_IO 0x0002
444#define EFI_PCI_IO_ATTRIBUTE_VGA_PALETTE_IO 0x0004
445#define EFI_PCI_IO_ATTRIBUTE_VGA_MEMORY 0x0008
446#define EFI_PCI_IO_ATTRIBUTE_VGA_IO 0x0010
447#define EFI_PCI_IO_ATTRIBUTE_IDE_PRIMARY_IO 0x0020
448#define EFI_PCI_IO_ATTRIBUTE_IDE_SECONDARY_IO 0x0040
449#define EFI_PCI_IO_ATTRIBUTE_MEMORY_WRITE_COMBINE 0x0080
450#define EFI_PCI_IO_ATTRIBUTE_IO 0x0100
451#define EFI_PCI_IO_ATTRIBUTE_MEMORY 0x0200
452#define EFI_PCI_IO_ATTRIBUTE_BUS_MASTER 0x0400
453#define EFI_PCI_IO_ATTRIBUTE_MEMORY_CACHED 0x0800
454#define EFI_PCI_IO_ATTRIBUTE_MEMORY_DISABLE 0x1000
455#define EFI_PCI_IO_ATTRIBUTE_EMBEDDED_DEVICE 0x2000
456#define EFI_PCI_IO_ATTRIBUTE_EMBEDDED_ROM 0x4000
457#define EFI_PCI_IO_ATTRIBUTE_DUAL_ADDRESS_CYCLE 0x8000
458#define EFI_PCI_IO_ATTRIBUTE_ISA_IO_16 0x10000
459#define EFI_PCI_IO_ATTRIBUTE_VGA_PALETTE_IO_16 0x20000
460#define EFI_PCI_IO_ATTRIBUTE_VGA_IO_16 0x40000
461
462typedef struct {
463 u32 version;
464 u32 get;
465 u32 set;
466 u32 del;
467 u32 get_all;
468} apple_properties_protocol_32_t;
469
470typedef struct {
471 u64 version;
472 u64 get;
473 u64 set;
474 u64 del;
475 u64 get_all;
476} apple_properties_protocol_64_t;
477
478typedef struct {
479 u32 get_capability;
480 u32 get_event_log;
481 u32 hash_log_extend_event;
482 u32 submit_command;
483 u32 get_active_pcr_banks;
484 u32 set_active_pcr_banks;
485 u32 get_result_of_set_active_pcr_banks;
486} efi_tcg2_protocol_32_t;
487
488typedef struct {
489 u64 get_capability;
490 u64 get_event_log;
491 u64 hash_log_extend_event;
492 u64 submit_command;
493 u64 get_active_pcr_banks;
494 u64 set_active_pcr_banks;
495 u64 get_result_of_set_active_pcr_banks;
496} efi_tcg2_protocol_64_t;
497
498typedef u32 efi_tcg2_event_log_format;
499
500typedef struct {
501 void *get_capability;
502 efi_status_t (*get_event_log)(efi_handle_t, efi_tcg2_event_log_format,
503 efi_physical_addr_t *, efi_physical_addr_t *, efi_bool_t *);
504 void *hash_log_extend_event;
505 void *submit_command;
506 void *get_active_pcr_banks;
507 void *set_active_pcr_banks;
508 void *get_result_of_set_active_pcr_banks;
509} efi_tcg2_protocol_t;
510
511
512
513
514#define EFI_RESET_COLD 0
515#define EFI_RESET_WARM 1
516#define EFI_RESET_SHUTDOWN 2
517
518
519
520
521#define EFI_RUNTIME_SERVICES_SIGNATURE ((u64)0x5652453544e5552ULL)
522#define EFI_RUNTIME_SERVICES_REVISION 0x00010000
523
524typedef struct {
525 efi_table_hdr_t hdr;
526 u32 get_time;
527 u32 set_time;
528 u32 get_wakeup_time;
529 u32 set_wakeup_time;
530 u32 set_virtual_address_map;
531 u32 convert_pointer;
532 u32 get_variable;
533 u32 get_next_variable;
534 u32 set_variable;
535 u32 get_next_high_mono_count;
536 u32 reset_system;
537 u32 update_capsule;
538 u32 query_capsule_caps;
539 u32 query_variable_info;
540} efi_runtime_services_32_t;
541
542typedef struct {
543 efi_table_hdr_t hdr;
544 u64 get_time;
545 u64 set_time;
546 u64 get_wakeup_time;
547 u64 set_wakeup_time;
548 u64 set_virtual_address_map;
549 u64 convert_pointer;
550 u64 get_variable;
551 u64 get_next_variable;
552 u64 set_variable;
553 u64 get_next_high_mono_count;
554 u64 reset_system;
555 u64 update_capsule;
556 u64 query_capsule_caps;
557 u64 query_variable_info;
558} efi_runtime_services_64_t;
559
560typedef efi_status_t efi_get_time_t (efi_time_t *tm, efi_time_cap_t *tc);
561typedef efi_status_t efi_set_time_t (efi_time_t *tm);
562typedef efi_status_t efi_get_wakeup_time_t (efi_bool_t *enabled, efi_bool_t *pending,
563 efi_time_t *tm);
564typedef efi_status_t efi_set_wakeup_time_t (efi_bool_t enabled, efi_time_t *tm);
565typedef efi_status_t efi_get_variable_t (efi_char16_t *name, efi_guid_t *vendor, u32 *attr,
566 unsigned long *data_size, void *data);
567typedef efi_status_t efi_get_next_variable_t (unsigned long *name_size, efi_char16_t *name,
568 efi_guid_t *vendor);
569typedef efi_status_t efi_set_variable_t (efi_char16_t *name, efi_guid_t *vendor,
570 u32 attr, unsigned long data_size,
571 void *data);
572typedef efi_status_t efi_get_next_high_mono_count_t (u32 *count);
573typedef void efi_reset_system_t (int reset_type, efi_status_t status,
574 unsigned long data_size, efi_char16_t *data);
575typedef efi_status_t efi_set_virtual_address_map_t (unsigned long memory_map_size,
576 unsigned long descriptor_size,
577 u32 descriptor_version,
578 efi_memory_desc_t *virtual_map);
579typedef efi_status_t efi_query_variable_info_t(u32 attr,
580 u64 *storage_space,
581 u64 *remaining_space,
582 u64 *max_variable_size);
583typedef efi_status_t efi_update_capsule_t(efi_capsule_header_t **capsules,
584 unsigned long count,
585 unsigned long sg_list);
586typedef efi_status_t efi_query_capsule_caps_t(efi_capsule_header_t **capsules,
587 unsigned long count,
588 u64 *max_size,
589 int *reset_type);
590typedef efi_status_t efi_query_variable_store_t(u32 attributes,
591 unsigned long size,
592 bool nonblocking);
593
594typedef struct {
595 efi_table_hdr_t hdr;
596 efi_get_time_t *get_time;
597 efi_set_time_t *set_time;
598 efi_get_wakeup_time_t *get_wakeup_time;
599 efi_set_wakeup_time_t *set_wakeup_time;
600 efi_set_virtual_address_map_t *set_virtual_address_map;
601 void *convert_pointer;
602 efi_get_variable_t *get_variable;
603 efi_get_next_variable_t *get_next_variable;
604 efi_set_variable_t *set_variable;
605 efi_get_next_high_mono_count_t *get_next_high_mono_count;
606 efi_reset_system_t *reset_system;
607 efi_update_capsule_t *update_capsule;
608 efi_query_capsule_caps_t *query_capsule_caps;
609 efi_query_variable_info_t *query_variable_info;
610} efi_runtime_services_t;
611
612void efi_native_runtime_setup(void);
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635#define NULL_GUID EFI_GUID(0x00000000, 0x0000, 0x0000, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00)
636#define MPS_TABLE_GUID EFI_GUID(0xeb9d2d2f, 0x2d88, 0x11d3, 0x9a, 0x16, 0x00, 0x90, 0x27, 0x3f, 0xc1, 0x4d)
637#define ACPI_TABLE_GUID EFI_GUID(0xeb9d2d30, 0x2d88, 0x11d3, 0x9a, 0x16, 0x00, 0x90, 0x27, 0x3f, 0xc1, 0x4d)
638#define ACPI_20_TABLE_GUID EFI_GUID(0x8868e871, 0xe4f1, 0x11d3, 0xbc, 0x22, 0x00, 0x80, 0xc7, 0x3c, 0x88, 0x81)
639#define SMBIOS_TABLE_GUID EFI_GUID(0xeb9d2d31, 0x2d88, 0x11d3, 0x9a, 0x16, 0x00, 0x90, 0x27, 0x3f, 0xc1, 0x4d)
640#define SMBIOS3_TABLE_GUID EFI_GUID(0xf2fd1544, 0x9794, 0x4a2c, 0x99, 0x2e, 0xe5, 0xbb, 0xcf, 0x20, 0xe3, 0x94)
641#define SAL_SYSTEM_TABLE_GUID EFI_GUID(0xeb9d2d32, 0x2d88, 0x11d3, 0x9a, 0x16, 0x00, 0x90, 0x27, 0x3f, 0xc1, 0x4d)
642#define HCDP_TABLE_GUID EFI_GUID(0xf951938d, 0x620b, 0x42ef, 0x82, 0x79, 0xa8, 0x4b, 0x79, 0x61, 0x78, 0x98)
643#define UGA_IO_PROTOCOL_GUID EFI_GUID(0x61a4d49e, 0x6f68, 0x4f1b, 0xb9, 0x22, 0xa8, 0x6e, 0xed, 0x0b, 0x07, 0xa2)
644#define EFI_GLOBAL_VARIABLE_GUID EFI_GUID(0x8be4df61, 0x93ca, 0x11d2, 0xaa, 0x0d, 0x00, 0xe0, 0x98, 0x03, 0x2b, 0x8c)
645#define UV_SYSTEM_TABLE_GUID EFI_GUID(0x3b13a7d4, 0x633e, 0x11dd, 0x93, 0xec, 0xda, 0x25, 0x56, 0xd8, 0x95, 0x93)
646#define LINUX_EFI_CRASH_GUID EFI_GUID(0xcfc8fc79, 0xbe2e, 0x4ddc, 0x97, 0xf0, 0x9f, 0x98, 0xbf, 0xe2, 0x98, 0xa0)
647#define LOADED_IMAGE_PROTOCOL_GUID EFI_GUID(0x5b1b31a1, 0x9562, 0x11d2, 0x8e, 0x3f, 0x00, 0xa0, 0xc9, 0x69, 0x72, 0x3b)
648#define EFI_GRAPHICS_OUTPUT_PROTOCOL_GUID EFI_GUID(0x9042a9de, 0x23dc, 0x4a38, 0x96, 0xfb, 0x7a, 0xde, 0xd0, 0x80, 0x51, 0x6a)
649#define EFI_UGA_PROTOCOL_GUID EFI_GUID(0x982c298b, 0xf4fa, 0x41cb, 0xb8, 0x38, 0x77, 0xaa, 0x68, 0x8f, 0xb8, 0x39)
650#define EFI_PCI_IO_PROTOCOL_GUID EFI_GUID(0x4cf5b200, 0x68b8, 0x4ca5, 0x9e, 0xec, 0xb2, 0x3e, 0x3f, 0x50, 0x02, 0x9a)
651#define EFI_FILE_INFO_ID EFI_GUID(0x09576e92, 0x6d3f, 0x11d2, 0x8e, 0x39, 0x00, 0xa0, 0xc9, 0x69, 0x72, 0x3b)
652#define EFI_SYSTEM_RESOURCE_TABLE_GUID EFI_GUID(0xb122a263, 0x3661, 0x4f68, 0x99, 0x29, 0x78, 0xf8, 0xb0, 0xd6, 0x21, 0x80)
653#define EFI_FILE_SYSTEM_GUID EFI_GUID(0x964e5b22, 0x6459, 0x11d2, 0x8e, 0x39, 0x00, 0xa0, 0xc9, 0x69, 0x72, 0x3b)
654#define DEVICE_TREE_GUID EFI_GUID(0xb1b621d5, 0xf19c, 0x41a5, 0x83, 0x0b, 0xd9, 0x15, 0x2c, 0x69, 0xaa, 0xe0)
655#define EFI_PROPERTIES_TABLE_GUID EFI_GUID(0x880aaca3, 0x4adc, 0x4a04, 0x90, 0x79, 0xb7, 0x47, 0x34, 0x08, 0x25, 0xe5)
656#define EFI_RNG_PROTOCOL_GUID EFI_GUID(0x3152bca5, 0xeade, 0x433d, 0x86, 0x2e, 0xc0, 0x1c, 0xdc, 0x29, 0x1f, 0x44)
657#define EFI_RNG_ALGORITHM_RAW EFI_GUID(0xe43176d7, 0xb6e8, 0x4827, 0xb7, 0x84, 0x7f, 0xfd, 0xc4, 0xb6, 0x85, 0x61)
658#define EFI_MEMORY_ATTRIBUTES_TABLE_GUID EFI_GUID(0xdcfa911d, 0x26eb, 0x469f, 0xa2, 0x20, 0x38, 0xb7, 0xdc, 0x46, 0x12, 0x20)
659#define EFI_CONSOLE_OUT_DEVICE_GUID EFI_GUID(0xd3b36f2c, 0xd551, 0x11d4, 0x9a, 0x46, 0x00, 0x90, 0x27, 0x3f, 0xc1, 0x4d)
660#define APPLE_PROPERTIES_PROTOCOL_GUID EFI_GUID(0x91bd12fe, 0xf6c3, 0x44fb, 0xa5, 0xb7, 0x51, 0x22, 0xab, 0x30, 0x3a, 0xe0)
661#define EFI_TCG2_PROTOCOL_GUID EFI_GUID(0x607f766c, 0x7455, 0x42be, 0x93, 0x0b, 0xe4, 0xd7, 0x6d, 0xb2, 0x72, 0x0f)
662
663#define EFI_IMAGE_SECURITY_DATABASE_GUID EFI_GUID(0xd719b2cb, 0x3d3a, 0x4596, 0xa3, 0xbc, 0xda, 0xd0, 0x0e, 0x67, 0x65, 0x6f)
664#define EFI_SHIM_LOCK_GUID EFI_GUID(0x605dab50, 0xe046, 0x4300, 0xab, 0xb6, 0x3d, 0xd8, 0x10, 0xdd, 0x8b, 0x23)
665
666
667
668
669
670
671#define LINUX_EFI_ARM_SCREEN_INFO_TABLE_GUID EFI_GUID(0xe03fc20a, 0x85dc, 0x406e, 0xb9, 0x0e, 0x4a, 0xb5, 0x02, 0x37, 0x1d, 0x95)
672#define LINUX_EFI_LOADER_ENTRY_GUID EFI_GUID(0x4a67b082, 0x0a4c, 0x41cf, 0xb6, 0xc7, 0x44, 0x0b, 0x29, 0xbb, 0x8c, 0x4f)
673#define LINUX_EFI_RANDOM_SEED_TABLE_GUID EFI_GUID(0x1ce1e5bc, 0x7ceb, 0x42f2, 0x81, 0xe5, 0x8a, 0xad, 0xf1, 0x80, 0xf5, 0x7b)
674#define LINUX_EFI_TPM_EVENT_LOG_GUID EFI_GUID(0xb7799cb0, 0xeca2, 0x4943, 0x96, 0x67, 0x1f, 0xae, 0x07, 0xb7, 0x47, 0xfa)
675
676typedef struct {
677 efi_guid_t guid;
678 u64 table;
679} efi_config_table_64_t;
680
681typedef struct {
682 efi_guid_t guid;
683 u32 table;
684} efi_config_table_32_t;
685
686typedef struct {
687 efi_guid_t guid;
688 unsigned long table;
689} efi_config_table_t;
690
691typedef struct {
692 efi_guid_t guid;
693 const char *name;
694 unsigned long *ptr;
695} efi_config_table_type_t;
696
697#define EFI_SYSTEM_TABLE_SIGNATURE ((u64)0x5453595320494249ULL)
698
699#define EFI_2_30_SYSTEM_TABLE_REVISION ((2 << 16) | (30))
700#define EFI_2_20_SYSTEM_TABLE_REVISION ((2 << 16) | (20))
701#define EFI_2_10_SYSTEM_TABLE_REVISION ((2 << 16) | (10))
702#define EFI_2_00_SYSTEM_TABLE_REVISION ((2 << 16) | (00))
703#define EFI_1_10_SYSTEM_TABLE_REVISION ((1 << 16) | (10))
704#define EFI_1_02_SYSTEM_TABLE_REVISION ((1 << 16) | (02))
705
706typedef struct {
707 efi_table_hdr_t hdr;
708 u64 fw_vendor;
709 u32 fw_revision;
710 u32 __pad1;
711 u64 con_in_handle;
712 u64 con_in;
713 u64 con_out_handle;
714 u64 con_out;
715 u64 stderr_handle;
716 u64 stderr;
717 u64 runtime;
718 u64 boottime;
719 u32 nr_tables;
720 u32 __pad2;
721 u64 tables;
722} efi_system_table_64_t;
723
724typedef struct {
725 efi_table_hdr_t hdr;
726 u32 fw_vendor;
727 u32 fw_revision;
728 u32 con_in_handle;
729 u32 con_in;
730 u32 con_out_handle;
731 u32 con_out;
732 u32 stderr_handle;
733 u32 stderr;
734 u32 runtime;
735 u32 boottime;
736 u32 nr_tables;
737 u32 tables;
738} efi_system_table_32_t;
739
740typedef struct {
741 efi_table_hdr_t hdr;
742 unsigned long fw_vendor;
743 u32 fw_revision;
744 unsigned long con_in_handle;
745 unsigned long con_in;
746 unsigned long con_out_handle;
747 unsigned long con_out;
748 unsigned long stderr_handle;
749 unsigned long stderr;
750 efi_runtime_services_t *runtime;
751 efi_boot_services_t *boottime;
752 unsigned long nr_tables;
753 unsigned long tables;
754} efi_system_table_t;
755
756
757
758
759
760
761struct efi_memory_map_data {
762 phys_addr_t phys_map;
763 unsigned long size;
764 unsigned long desc_version;
765 unsigned long desc_size;
766};
767
768struct efi_memory_map {
769 phys_addr_t phys_map;
770 void *map;
771 void *map_end;
772 int nr_map;
773 unsigned long desc_version;
774 unsigned long desc_size;
775 bool late;
776};
777
778struct efi_mem_range {
779 struct range range;
780 u64 attribute;
781};
782
783struct efi_fdt_params {
784 u64 system_table;
785 u64 mmap;
786 u32 mmap_size;
787 u32 desc_size;
788 u32 desc_ver;
789};
790
791typedef struct {
792 u32 revision;
793 u32 parent_handle;
794 u32 system_table;
795 u32 device_handle;
796 u32 file_path;
797 u32 reserved;
798 u32 load_options_size;
799 u32 load_options;
800 u32 image_base;
801 __aligned_u64 image_size;
802 unsigned int image_code_type;
803 unsigned int image_data_type;
804 unsigned long unload;
805} efi_loaded_image_32_t;
806
807typedef struct {
808 u32 revision;
809 u64 parent_handle;
810 u64 system_table;
811 u64 device_handle;
812 u64 file_path;
813 u64 reserved;
814 u32 load_options_size;
815 u64 load_options;
816 u64 image_base;
817 __aligned_u64 image_size;
818 unsigned int image_code_type;
819 unsigned int image_data_type;
820 unsigned long unload;
821} efi_loaded_image_64_t;
822
823typedef struct {
824 u32 revision;
825 void *parent_handle;
826 efi_system_table_t *system_table;
827 void *device_handle;
828 void *file_path;
829 void *reserved;
830 u32 load_options_size;
831 void *load_options;
832 void *image_base;
833 __aligned_u64 image_size;
834 unsigned int image_code_type;
835 unsigned int image_data_type;
836 unsigned long unload;
837} efi_loaded_image_t;
838
839
840typedef struct {
841 u64 size;
842 u64 file_size;
843 u64 phys_size;
844 efi_time_t create_time;
845 efi_time_t last_access_time;
846 efi_time_t modification_time;
847 __aligned_u64 attribute;
848 efi_char16_t filename[1];
849} efi_file_info_t;
850
851typedef struct {
852 u64 revision;
853 u32 open;
854 u32 close;
855 u32 delete;
856 u32 read;
857 u32 write;
858 u32 get_position;
859 u32 set_position;
860 u32 get_info;
861 u32 set_info;
862 u32 flush;
863} efi_file_handle_32_t;
864
865typedef struct {
866 u64 revision;
867 u64 open;
868 u64 close;
869 u64 delete;
870 u64 read;
871 u64 write;
872 u64 get_position;
873 u64 set_position;
874 u64 get_info;
875 u64 set_info;
876 u64 flush;
877} efi_file_handle_64_t;
878
879typedef struct _efi_file_handle {
880 u64 revision;
881 efi_status_t (*open)(struct _efi_file_handle *,
882 struct _efi_file_handle **,
883 efi_char16_t *, u64, u64);
884 efi_status_t (*close)(struct _efi_file_handle *);
885 void *delete;
886 efi_status_t (*read)(struct _efi_file_handle *, unsigned long *,
887 void *);
888 void *write;
889 void *get_position;
890 void *set_position;
891 efi_status_t (*get_info)(struct _efi_file_handle *, efi_guid_t *,
892 unsigned long *, void *);
893 void *set_info;
894 void *flush;
895} efi_file_handle_t;
896
897typedef struct _efi_file_io_interface {
898 u64 revision;
899 int (*open_volume)(struct _efi_file_io_interface *,
900 efi_file_handle_t **);
901} efi_file_io_interface_t;
902
903#define EFI_FILE_MODE_READ 0x0000000000000001
904#define EFI_FILE_MODE_WRITE 0x0000000000000002
905#define EFI_FILE_MODE_CREATE 0x8000000000000000
906
907typedef struct {
908 u32 version;
909 u32 length;
910 u64 memory_protection_attribute;
911} efi_properties_table_t;
912
913#define EFI_PROPERTIES_TABLE_VERSION 0x00010000
914#define EFI_PROPERTIES_RUNTIME_MEMORY_PROTECTION_NON_EXECUTABLE_PE_DATA 0x1
915
916#define EFI_INVALID_TABLE_ADDR (~0UL)
917
918typedef struct {
919 u32 version;
920 u32 num_entries;
921 u32 desc_size;
922 u32 reserved;
923 efi_memory_desc_t entry[0];
924} efi_memory_attributes_table_t;
925
926
927
928
929extern struct efi {
930 efi_system_table_t *systab;
931 unsigned int runtime_version;
932 unsigned long mps;
933 unsigned long acpi;
934 unsigned long acpi20;
935 unsigned long smbios;
936 unsigned long smbios3;
937 unsigned long sal_systab;
938 unsigned long boot_info;
939 unsigned long hcdp;
940 unsigned long uga;
941 unsigned long uv_systab;
942 unsigned long fw_vendor;
943 unsigned long runtime;
944 unsigned long config_table;
945 unsigned long esrt;
946 unsigned long properties_table;
947 unsigned long mem_attr_table;
948 unsigned long rng_seed;
949 unsigned long tpm_log;
950 efi_get_time_t *get_time;
951 efi_set_time_t *set_time;
952 efi_get_wakeup_time_t *get_wakeup_time;
953 efi_set_wakeup_time_t *set_wakeup_time;
954 efi_get_variable_t *get_variable;
955 efi_get_next_variable_t *get_next_variable;
956 efi_set_variable_t *set_variable;
957 efi_set_variable_t *set_variable_nonblocking;
958 efi_query_variable_info_t *query_variable_info;
959 efi_query_variable_info_t *query_variable_info_nonblocking;
960 efi_update_capsule_t *update_capsule;
961 efi_query_capsule_caps_t *query_capsule_caps;
962 efi_get_next_high_mono_count_t *get_next_high_mono_count;
963 efi_reset_system_t *reset_system;
964 efi_set_virtual_address_map_t *set_virtual_address_map;
965 struct efi_memory_map memmap;
966 unsigned long flags;
967} efi;
968
969extern struct mm_struct efi_mm;
970
971static inline int
972efi_guidcmp (efi_guid_t left, efi_guid_t right)
973{
974 return memcmp(&left, &right, sizeof (efi_guid_t));
975}
976
977static inline char *
978efi_guid_to_str(efi_guid_t *guid, char *out)
979{
980 sprintf(out, "%pUl", guid->b);
981 return out;
982}
983
984extern void efi_init (void);
985extern void *efi_get_pal_addr (void);
986extern void efi_map_pal_code (void);
987extern void efi_memmap_walk (efi_freemem_callback_t callback, void *arg);
988extern void efi_gettimeofday (struct timespec64 *ts);
989extern void efi_enter_virtual_mode (void);
990#ifdef CONFIG_X86
991extern void efi_late_init(void);
992extern void efi_free_boot_services(void);
993extern efi_status_t efi_query_variable_store(u32 attributes,
994 unsigned long size,
995 bool nonblocking);
996extern void efi_find_mirror(void);
997#else
998static inline void efi_late_init(void) {}
999static inline void efi_free_boot_services(void) {}
1000
1001static inline efi_status_t efi_query_variable_store(u32 attributes,
1002 unsigned long size,
1003 bool nonblocking)
1004{
1005 return EFI_SUCCESS;
1006}
1007#endif
1008extern void __iomem *efi_lookup_mapped_addr(u64 phys_addr);
1009
1010extern phys_addr_t __init efi_memmap_alloc(unsigned int num_entries);
1011extern int __init efi_memmap_init_early(struct efi_memory_map_data *data);
1012extern int __init efi_memmap_init_late(phys_addr_t addr, unsigned long size);
1013extern void __init efi_memmap_unmap(void);
1014extern int __init efi_memmap_install(phys_addr_t addr, unsigned int nr_map);
1015extern int __init efi_memmap_split_count(efi_memory_desc_t *md,
1016 struct range *range);
1017extern void __init efi_memmap_insert(struct efi_memory_map *old_memmap,
1018 void *buf, struct efi_mem_range *mem);
1019
1020extern int efi_config_init(efi_config_table_type_t *arch_tables);
1021#ifdef CONFIG_EFI_ESRT
1022extern void __init efi_esrt_init(void);
1023#else
1024static inline void efi_esrt_init(void) { }
1025#endif
1026extern int efi_config_parse_tables(void *config_tables, int count, int sz,
1027 efi_config_table_type_t *arch_tables);
1028extern u64 efi_get_iobase (void);
1029extern int efi_mem_type(unsigned long phys_addr);
1030extern u64 efi_mem_attributes (unsigned long phys_addr);
1031extern u64 efi_mem_attribute (unsigned long phys_addr, unsigned long size);
1032extern int __init efi_uart_console_only (void);
1033extern u64 efi_mem_desc_end(efi_memory_desc_t *md);
1034extern int efi_mem_desc_lookup(u64 phys_addr, efi_memory_desc_t *out_md);
1035extern void efi_mem_reserve(phys_addr_t addr, u64 size);
1036extern void efi_initialize_iomem_resources(struct resource *code_resource,
1037 struct resource *data_resource, struct resource *bss_resource);
1038extern void efi_reserve_boot_services(void);
1039extern int efi_get_fdt_params(struct efi_fdt_params *params);
1040extern struct kobject *efi_kobj;
1041
1042extern int efi_reboot_quirk_mode;
1043extern bool efi_poweroff_required(void);
1044
1045#ifdef CONFIG_EFI_FAKE_MEMMAP
1046extern void __init efi_fake_memmap(void);
1047#else
1048static inline void efi_fake_memmap(void) { }
1049#endif
1050
1051
1052
1053
1054
1055
1056
1057
1058typedef int (*efi_memattr_perm_setter)(struct mm_struct *, efi_memory_desc_t *);
1059
1060extern int efi_memattr_init(void);
1061extern int efi_memattr_apply_permissions(struct mm_struct *mm,
1062 efi_memattr_perm_setter fn);
1063
1064
1065
1066
1067
1068
1069
1070
1071
1072
1073
1074
1075
1076
1077
1078
1079
1080
1081
1082
1083#define efi_early_memdesc_ptr(map, desc_size, n) \
1084 (efi_memory_desc_t *)((void *)(map) + ((n) * (desc_size)))
1085
1086
1087#define for_each_efi_memory_desc_in_map(m, md) \
1088 for ((md) = (m)->map; \
1089 (md) && ((void *)(md) + (m)->desc_size) <= (m)->map_end; \
1090 (md) = (void *)(md) + (m)->desc_size)
1091
1092
1093
1094
1095
1096
1097
1098#define for_each_efi_memory_desc(md) \
1099 for_each_efi_memory_desc_in_map(&efi.memmap, md)
1100
1101
1102
1103
1104
1105char * __init efi_md_typeattr_format(char *buf, size_t size,
1106 const efi_memory_desc_t *md);
1107
1108
1109
1110
1111
1112
1113
1114
1115
1116static inline int efi_range_is_wc(unsigned long start, unsigned long len)
1117{
1118 unsigned long i;
1119
1120 for (i = 0; i < len; i += (1UL << EFI_PAGE_SHIFT)) {
1121 unsigned long paddr = __pa(start + i);
1122 if (!(efi_mem_attributes(paddr) & EFI_MEMORY_WC))
1123 return 0;
1124 }
1125
1126 return 1;
1127}
1128
1129#ifdef CONFIG_EFI_PCDP
1130extern int __init efi_setup_pcdp_console(char *);
1131#endif
1132
1133
1134
1135
1136
1137#define EFI_BOOT 0
1138#define EFI_CONFIG_TABLES 2
1139#define EFI_RUNTIME_SERVICES 3
1140#define EFI_MEMMAP 4
1141#define EFI_64BIT 5
1142#define EFI_PARAVIRT 6
1143#define EFI_ARCH_1 7
1144#define EFI_DBG 8
1145#define EFI_NX_PE_DATA 9
1146#define EFI_MEM_ATTR 10
1147
1148#ifdef CONFIG_EFI
1149
1150
1151
1152static inline bool efi_enabled(int feature)
1153{
1154 return test_bit(feature, &efi.flags) != 0;
1155}
1156extern void efi_reboot(enum reboot_mode reboot_mode, const char *__unused);
1157
1158extern bool efi_is_table_address(unsigned long phys_addr);
1159#else
1160static inline bool efi_enabled(int feature)
1161{
1162 return false;
1163}
1164static inline void
1165efi_reboot(enum reboot_mode reboot_mode, const char *__unused) {}
1166
1167static inline bool
1168efi_capsule_pending(int *reset_type)
1169{
1170 return false;
1171}
1172
1173static inline bool efi_is_table_address(unsigned long phys_addr)
1174{
1175 return false;
1176}
1177#endif
1178
1179extern int efi_status_to_err(efi_status_t status);
1180
1181
1182
1183
1184#define EFI_VARIABLE_NON_VOLATILE 0x0000000000000001
1185#define EFI_VARIABLE_BOOTSERVICE_ACCESS 0x0000000000000002
1186#define EFI_VARIABLE_RUNTIME_ACCESS 0x0000000000000004
1187#define EFI_VARIABLE_HARDWARE_ERROR_RECORD 0x0000000000000008
1188#define EFI_VARIABLE_AUTHENTICATED_WRITE_ACCESS 0x0000000000000010
1189#define EFI_VARIABLE_TIME_BASED_AUTHENTICATED_WRITE_ACCESS 0x0000000000000020
1190#define EFI_VARIABLE_APPEND_WRITE 0x0000000000000040
1191
1192#define EFI_VARIABLE_MASK (EFI_VARIABLE_NON_VOLATILE | \
1193 EFI_VARIABLE_BOOTSERVICE_ACCESS | \
1194 EFI_VARIABLE_RUNTIME_ACCESS | \
1195 EFI_VARIABLE_HARDWARE_ERROR_RECORD | \
1196 EFI_VARIABLE_AUTHENTICATED_WRITE_ACCESS | \
1197 EFI_VARIABLE_TIME_BASED_AUTHENTICATED_WRITE_ACCESS | \
1198 EFI_VARIABLE_APPEND_WRITE)
1199
1200
1201
1202
1203#define EFI_VARIABLE_GUID_LEN UUID_STRING_LEN
1204
1205
1206
1207
1208#define EFI_LOCATE_ALL_HANDLES 0
1209#define EFI_LOCATE_BY_REGISTER_NOTIFY 1
1210#define EFI_LOCATE_BY_PROTOCOL 2
1211
1212
1213
1214
1215#define EFI_DEV_HW 0x01
1216#define EFI_DEV_PCI 1
1217#define EFI_DEV_PCCARD 2
1218#define EFI_DEV_MEM_MAPPED 3
1219#define EFI_DEV_VENDOR 4
1220#define EFI_DEV_CONTROLLER 5
1221#define EFI_DEV_ACPI 0x02
1222#define EFI_DEV_BASIC_ACPI 1
1223#define EFI_DEV_EXPANDED_ACPI 2
1224#define EFI_DEV_MSG 0x03
1225#define EFI_DEV_MSG_ATAPI 1
1226#define EFI_DEV_MSG_SCSI 2
1227#define EFI_DEV_MSG_FC 3
1228#define EFI_DEV_MSG_1394 4
1229#define EFI_DEV_MSG_USB 5
1230#define EFI_DEV_MSG_USB_CLASS 15
1231#define EFI_DEV_MSG_I20 6
1232#define EFI_DEV_MSG_MAC 11
1233#define EFI_DEV_MSG_IPV4 12
1234#define EFI_DEV_MSG_IPV6 13
1235#define EFI_DEV_MSG_INFINIBAND 9
1236#define EFI_DEV_MSG_UART 14
1237#define EFI_DEV_MSG_VENDOR 10
1238#define EFI_DEV_MEDIA 0x04
1239#define EFI_DEV_MEDIA_HARD_DRIVE 1
1240#define EFI_DEV_MEDIA_CDROM 2
1241#define EFI_DEV_MEDIA_VENDOR 3
1242#define EFI_DEV_MEDIA_FILE 4
1243#define EFI_DEV_MEDIA_PROTOCOL 5
1244#define EFI_DEV_BIOS_BOOT 0x05
1245#define EFI_DEV_END_PATH 0x7F
1246#define EFI_DEV_END_PATH2 0xFF
1247#define EFI_DEV_END_INSTANCE 0x01
1248#define EFI_DEV_END_ENTIRE 0xFF
1249
1250struct efi_generic_dev_path {
1251 u8 type;
1252 u8 sub_type;
1253 u16 length;
1254} __attribute ((packed));
1255
1256struct efi_dev_path {
1257 u8 type;
1258 u8 sub_type;
1259 u16 length;
1260 union {
1261 struct {
1262 u32 hid;
1263 u32 uid;
1264 } acpi;
1265 struct {
1266 u8 fn;
1267 u8 dev;
1268 } pci;
1269 };
1270} __attribute ((packed));
1271
1272#if IS_ENABLED(CONFIG_EFI_DEV_PATH_PARSER)
1273struct device *efi_get_device_by_path(struct efi_dev_path **node, size_t *len);
1274#endif
1275
1276static inline void memrange_efi_to_native(u64 *addr, u64 *npages)
1277{
1278 *npages = PFN_UP(*addr + (*npages<<EFI_PAGE_SHIFT)) - PFN_DOWN(*addr);
1279 *addr &= PAGE_MASK;
1280}
1281
1282
1283
1284
1285
1286
1287
1288
1289struct efivar_operations {
1290 efi_get_variable_t *get_variable;
1291 efi_get_next_variable_t *get_next_variable;
1292 efi_set_variable_t *set_variable;
1293 efi_set_variable_t *set_variable_nonblocking;
1294 efi_query_variable_store_t *query_variable_store;
1295};
1296
1297struct efivars {
1298 struct kset *kset;
1299 struct kobject *kobject;
1300 const struct efivar_operations *ops;
1301};
1302
1303
1304
1305
1306
1307
1308
1309
1310#define EFI_VAR_NAME_LEN 1024
1311
1312struct efi_variable {
1313 efi_char16_t VariableName[EFI_VAR_NAME_LEN/sizeof(efi_char16_t)];
1314 efi_guid_t VendorGuid;
1315 unsigned long DataSize;
1316 __u8 Data[1024];
1317 efi_status_t Status;
1318 __u32 Attributes;
1319} __attribute__((packed));
1320
1321struct efivar_entry {
1322 struct efi_variable var;
1323 struct list_head list;
1324 struct kobject kobj;
1325 bool scanning;
1326 bool deleting;
1327};
1328
1329typedef struct {
1330 u32 reset;
1331 u32 output_string;
1332 u32 test_string;
1333} efi_simple_text_output_protocol_32_t;
1334
1335typedef struct {
1336 u64 reset;
1337 u64 output_string;
1338 u64 test_string;
1339} efi_simple_text_output_protocol_64_t;
1340
1341struct efi_simple_text_output_protocol {
1342 void *reset;
1343 efi_status_t (*output_string)(void *, void *);
1344 void *test_string;
1345};
1346
1347#define PIXEL_RGB_RESERVED_8BIT_PER_COLOR 0
1348#define PIXEL_BGR_RESERVED_8BIT_PER_COLOR 1
1349#define PIXEL_BIT_MASK 2
1350#define PIXEL_BLT_ONLY 3
1351#define PIXEL_FORMAT_MAX 4
1352
1353struct efi_pixel_bitmask {
1354 u32 red_mask;
1355 u32 green_mask;
1356 u32 blue_mask;
1357 u32 reserved_mask;
1358};
1359
1360struct efi_graphics_output_mode_info {
1361 u32 version;
1362 u32 horizontal_resolution;
1363 u32 vertical_resolution;
1364 int pixel_format;
1365 struct efi_pixel_bitmask pixel_information;
1366 u32 pixels_per_scan_line;
1367} __packed;
1368
1369struct efi_graphics_output_protocol_mode_32 {
1370 u32 max_mode;
1371 u32 mode;
1372 u32 info;
1373 u32 size_of_info;
1374 u64 frame_buffer_base;
1375 u32 frame_buffer_size;
1376} __packed;
1377
1378struct efi_graphics_output_protocol_mode_64 {
1379 u32 max_mode;
1380 u32 mode;
1381 u64 info;
1382 u64 size_of_info;
1383 u64 frame_buffer_base;
1384 u64 frame_buffer_size;
1385} __packed;
1386
1387struct efi_graphics_output_protocol_mode {
1388 u32 max_mode;
1389 u32 mode;
1390 unsigned long info;
1391 unsigned long size_of_info;
1392 u64 frame_buffer_base;
1393 unsigned long frame_buffer_size;
1394} __packed;
1395
1396struct efi_graphics_output_protocol_32 {
1397 u32 query_mode;
1398 u32 set_mode;
1399 u32 blt;
1400 u32 mode;
1401};
1402
1403struct efi_graphics_output_protocol_64 {
1404 u64 query_mode;
1405 u64 set_mode;
1406 u64 blt;
1407 u64 mode;
1408};
1409
1410struct efi_graphics_output_protocol {
1411 unsigned long query_mode;
1412 unsigned long set_mode;
1413 unsigned long blt;
1414 struct efi_graphics_output_protocol_mode *mode;
1415};
1416
1417typedef efi_status_t (*efi_graphics_output_protocol_query_mode)(
1418 struct efi_graphics_output_protocol *, u32, unsigned long *,
1419 struct efi_graphics_output_mode_info **);
1420
1421extern struct list_head efivar_sysfs_list;
1422
1423static inline void
1424efivar_unregister(struct efivar_entry *var)
1425{
1426 kobject_put(&var->kobj);
1427}
1428
1429int efivars_register(struct efivars *efivars,
1430 const struct efivar_operations *ops,
1431 struct kobject *kobject);
1432int efivars_unregister(struct efivars *efivars);
1433struct kobject *efivars_kobject(void);
1434
1435int efivar_init(int (*func)(efi_char16_t *, efi_guid_t, unsigned long, void *),
1436 void *data, bool duplicates, struct list_head *head);
1437
1438int efivar_entry_add(struct efivar_entry *entry, struct list_head *head);
1439int efivar_entry_remove(struct efivar_entry *entry);
1440
1441int __efivar_entry_delete(struct efivar_entry *entry);
1442int efivar_entry_delete(struct efivar_entry *entry);
1443
1444int efivar_entry_size(struct efivar_entry *entry, unsigned long *size);
1445int __efivar_entry_get(struct efivar_entry *entry, u32 *attributes,
1446 unsigned long *size, void *data);
1447int efivar_entry_get(struct efivar_entry *entry, u32 *attributes,
1448 unsigned long *size, void *data);
1449int efivar_entry_set(struct efivar_entry *entry, u32 attributes,
1450 unsigned long size, void *data, struct list_head *head);
1451int efivar_entry_set_get_size(struct efivar_entry *entry, u32 attributes,
1452 unsigned long *size, void *data, bool *set);
1453int efivar_entry_set_safe(efi_char16_t *name, efi_guid_t vendor, u32 attributes,
1454 bool block, unsigned long size, void *data);
1455
1456int efivar_entry_iter_begin(void);
1457void efivar_entry_iter_end(void);
1458
1459int __efivar_entry_iter(int (*func)(struct efivar_entry *, void *),
1460 struct list_head *head, void *data,
1461 struct efivar_entry **prev);
1462int efivar_entry_iter(int (*func)(struct efivar_entry *, void *),
1463 struct list_head *head, void *data);
1464
1465struct efivar_entry *efivar_entry_find(efi_char16_t *name, efi_guid_t guid,
1466 struct list_head *head, bool remove);
1467
1468bool efivar_validate(efi_guid_t vendor, efi_char16_t *var_name, u8 *data,
1469 unsigned long data_size);
1470bool efivar_variable_is_removable(efi_guid_t vendor, const char *name,
1471 size_t len);
1472
1473extern struct work_struct efivar_work;
1474void efivar_run_worker(void);
1475
1476#if defined(CONFIG_EFI_VARS) || defined(CONFIG_EFI_VARS_MODULE)
1477int efivars_sysfs_init(void);
1478
1479#define EFIVARS_DATA_SIZE_MAX 1024
1480
1481#endif
1482extern bool efi_capsule_pending(int *reset_type);
1483
1484extern int efi_capsule_supported(efi_guid_t guid, u32 flags,
1485 size_t size, int *reset);
1486
1487extern int efi_capsule_update(efi_capsule_header_t *capsule,
1488 phys_addr_t *pages);
1489
1490#ifdef CONFIG_EFI_RUNTIME_MAP
1491int efi_runtime_map_init(struct kobject *);
1492int efi_get_runtime_map_size(void);
1493int efi_get_runtime_map_desc_size(void);
1494int efi_runtime_map_copy(void *buf, size_t bufsz);
1495#else
1496static inline int efi_runtime_map_init(struct kobject *kobj)
1497{
1498 return 0;
1499}
1500
1501static inline int efi_get_runtime_map_size(void)
1502{
1503 return 0;
1504}
1505
1506static inline int efi_get_runtime_map_desc_size(void)
1507{
1508 return 0;
1509}
1510
1511static inline int efi_runtime_map_copy(void *buf, size_t bufsz)
1512{
1513 return 0;
1514}
1515
1516#endif
1517
1518
1519
1520void efi_printk(efi_system_table_t *sys_table_arg, char *str);
1521
1522void efi_free(efi_system_table_t *sys_table_arg, unsigned long size,
1523 unsigned long addr);
1524
1525char *efi_convert_cmdline(efi_system_table_t *sys_table_arg,
1526 efi_loaded_image_t *image, int *cmd_line_len);
1527
1528efi_status_t efi_get_memory_map(efi_system_table_t *sys_table_arg,
1529 struct efi_boot_memmap *map);
1530
1531efi_status_t efi_low_alloc(efi_system_table_t *sys_table_arg,
1532 unsigned long size, unsigned long align,
1533 unsigned long *addr);
1534
1535efi_status_t efi_high_alloc(efi_system_table_t *sys_table_arg,
1536 unsigned long size, unsigned long align,
1537 unsigned long *addr, unsigned long max);
1538
1539efi_status_t efi_relocate_kernel(efi_system_table_t *sys_table_arg,
1540 unsigned long *image_addr,
1541 unsigned long image_size,
1542 unsigned long alloc_size,
1543 unsigned long preferred_addr,
1544 unsigned long alignment);
1545
1546efi_status_t handle_cmdline_files(efi_system_table_t *sys_table_arg,
1547 efi_loaded_image_t *image,
1548 char *cmd_line, char *option_string,
1549 unsigned long max_addr,
1550 unsigned long *load_addr,
1551 unsigned long *load_size);
1552
1553efi_status_t efi_parse_options(char const *cmdline);
1554
1555efi_status_t efi_setup_gop(efi_system_table_t *sys_table_arg,
1556 struct screen_info *si, efi_guid_t *proto,
1557 unsigned long size);
1558
1559bool efi_runtime_disabled(void);
1560extern void efi_call_virt_check_flags(unsigned long flags, const char *call);
1561
1562enum efi_secureboot_mode {
1563 efi_secureboot_mode_unset,
1564 efi_secureboot_mode_unknown,
1565 efi_secureboot_mode_disabled,
1566 efi_secureboot_mode_enabled,
1567};
1568enum efi_secureboot_mode efi_get_secureboot(efi_system_table_t *sys_table);
1569
1570#ifdef CONFIG_RESET_ATTACK_MITIGATION
1571void efi_enable_reset_attack_mitigation(efi_system_table_t *sys_table_arg);
1572#else
1573static inline void
1574efi_enable_reset_attack_mitigation(efi_system_table_t *sys_table_arg) { }
1575#endif
1576
1577void efi_retrieve_tpm2_eventlog(efi_system_table_t *sys_table);
1578
1579
1580
1581
1582
1583
1584
1585
1586
1587
1588
1589
1590
1591
1592
1593
1594
1595
1596
1597
1598
1599#define efi_call_virt_pointer(p, f, args...) \
1600({ \
1601 efi_status_t __s; \
1602 unsigned long __flags; \
1603 \
1604 arch_efi_call_virt_setup(); \
1605 \
1606 local_save_flags(__flags); \
1607 __s = arch_efi_call_virt(p, f, args); \
1608 efi_call_virt_check_flags(__flags, __stringify(f)); \
1609 \
1610 arch_efi_call_virt_teardown(); \
1611 \
1612 __s; \
1613})
1614
1615#define __efi_call_virt_pointer(p, f, args...) \
1616({ \
1617 unsigned long __flags; \
1618 \
1619 arch_efi_call_virt_setup(); \
1620 \
1621 local_save_flags(__flags); \
1622 arch_efi_call_virt(p, f, args); \
1623 efi_call_virt_check_flags(__flags, __stringify(f)); \
1624 \
1625 arch_efi_call_virt_teardown(); \
1626})
1627
1628typedef efi_status_t (*efi_exit_boot_map_processing)(
1629 efi_system_table_t *sys_table_arg,
1630 struct efi_boot_memmap *map,
1631 void *priv);
1632
1633efi_status_t efi_exit_boot_services(efi_system_table_t *sys_table,
1634 void *handle,
1635 struct efi_boot_memmap *map,
1636 void *priv,
1637 efi_exit_boot_map_processing priv_func);
1638
1639#define EFI_RANDOM_SEED_SIZE 64U
1640
1641struct linux_efi_random_seed {
1642 u32 size;
1643 u8 bits[];
1644};
1645
1646struct linux_efi_tpm_eventlog {
1647 u32 size;
1648 u8 version;
1649 u8 log[];
1650};
1651
1652extern int efi_tpm_eventlog_init(void);
1653
1654#endif
1655