1#ifndef _LINUX_EFI_H
2#define _LINUX_EFI_H
3
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13
14#include <linux/init.h>
15#include <linux/string.h>
16#include <linux/time.h>
17#include <linux/types.h>
18#include <linux/proc_fs.h>
19#include <linux/rtc.h>
20#include <linux/ioport.h>
21#include <linux/pfn.h>
22#include <linux/pstore.h>
23#include <linux/reboot.h>
24
25#include <asm/page.h>
26
27#define EFI_SUCCESS 0
28#define EFI_LOAD_ERROR ( 1 | (1UL << (BITS_PER_LONG-1)))
29#define EFI_INVALID_PARAMETER ( 2 | (1UL << (BITS_PER_LONG-1)))
30#define EFI_UNSUPPORTED ( 3 | (1UL << (BITS_PER_LONG-1)))
31#define EFI_BAD_BUFFER_SIZE ( 4 | (1UL << (BITS_PER_LONG-1)))
32#define EFI_BUFFER_TOO_SMALL ( 5 | (1UL << (BITS_PER_LONG-1)))
33#define EFI_NOT_READY ( 6 | (1UL << (BITS_PER_LONG-1)))
34#define EFI_DEVICE_ERROR ( 7 | (1UL << (BITS_PER_LONG-1)))
35#define EFI_WRITE_PROTECTED ( 8 | (1UL << (BITS_PER_LONG-1)))
36#define EFI_OUT_OF_RESOURCES ( 9 | (1UL << (BITS_PER_LONG-1)))
37#define EFI_NOT_FOUND (14 | (1UL << (BITS_PER_LONG-1)))
38#define EFI_SECURITY_VIOLATION (26 | (1UL << (BITS_PER_LONG-1)))
39
40typedef unsigned long efi_status_t;
41typedef u8 efi_bool_t;
42typedef u16 efi_char16_t;
43typedef u64 efi_physical_addr_t;
44typedef void *efi_handle_t;
45
46
47typedef struct {
48 u8 b[16];
49} efi_guid_t;
50
51#define EFI_GUID(a,b,c,d0,d1,d2,d3,d4,d5,d6,d7) \
52((efi_guid_t) \
53{{ (a) & 0xff, ((a) >> 8) & 0xff, ((a) >> 16) & 0xff, ((a) >> 24) & 0xff, \
54 (b) & 0xff, ((b) >> 8) & 0xff, \
55 (c) & 0xff, ((c) >> 8) & 0xff, \
56 (d0), (d1), (d2), (d3), (d4), (d5), (d6), (d7) }})
57
58
59
60
61typedef struct {
62 u64 signature;
63 u32 revision;
64 u32 headersize;
65 u32 crc32;
66 u32 reserved;
67} efi_table_hdr_t;
68
69
70
71
72
73
74#define EFI_RESERVED_TYPE 0
75#define EFI_LOADER_CODE 1
76#define EFI_LOADER_DATA 2
77#define EFI_BOOT_SERVICES_CODE 3
78#define EFI_BOOT_SERVICES_DATA 4
79#define EFI_RUNTIME_SERVICES_CODE 5
80#define EFI_RUNTIME_SERVICES_DATA 6
81#define EFI_CONVENTIONAL_MEMORY 7
82#define EFI_UNUSABLE_MEMORY 8
83#define EFI_ACPI_RECLAIM_MEMORY 9
84#define EFI_ACPI_MEMORY_NVS 10
85#define EFI_MEMORY_MAPPED_IO 11
86#define EFI_MEMORY_MAPPED_IO_PORT_SPACE 12
87#define EFI_PAL_CODE 13
88#define EFI_MAX_MEMORY_TYPE 14
89
90
91#define EFI_MEMORY_UC ((u64)0x0000000000000001ULL)
92#define EFI_MEMORY_WC ((u64)0x0000000000000002ULL)
93#define EFI_MEMORY_WT ((u64)0x0000000000000004ULL)
94#define EFI_MEMORY_WB ((u64)0x0000000000000008ULL)
95#define EFI_MEMORY_UCE ((u64)0x0000000000000010ULL)
96#define EFI_MEMORY_WP ((u64)0x0000000000001000ULL)
97#define EFI_MEMORY_RP ((u64)0x0000000000002000ULL)
98#define EFI_MEMORY_XP ((u64)0x0000000000004000ULL)
99#define EFI_MEMORY_RUNTIME ((u64)0x8000000000000000ULL)
100#define EFI_MEMORY_DESCRIPTOR_VERSION 1
101
102#define EFI_PAGE_SHIFT 12
103#define EFI_PAGE_SIZE (1UL << EFI_PAGE_SHIFT)
104
105typedef struct {
106 u32 type;
107 u32 pad;
108 u64 phys_addr;
109 u64 virt_addr;
110 u64 num_pages;
111 u64 attribute;
112} efi_memory_desc_t;
113
114typedef struct {
115 efi_guid_t guid;
116 u32 headersize;
117 u32 flags;
118 u32 imagesize;
119} efi_capsule_header_t;
120
121
122
123
124#define EFI_ALLOCATE_ANY_PAGES 0
125#define EFI_ALLOCATE_MAX_ADDRESS 1
126#define EFI_ALLOCATE_ADDRESS 2
127#define EFI_MAX_ALLOCATE_TYPE 3
128
129typedef int (*efi_freemem_callback_t) (u64 start, u64 end, void *arg);
130
131
132
133
134#define EFI_TIME_ADJUST_DAYLIGHT 0x1
135#define EFI_TIME_IN_DAYLIGHT 0x2
136#define EFI_UNSPECIFIED_TIMEZONE 0x07ff
137
138typedef struct {
139 u16 year;
140 u8 month;
141 u8 day;
142 u8 hour;
143 u8 minute;
144 u8 second;
145 u8 pad1;
146 u32 nanosecond;
147 s16 timezone;
148 u8 daylight;
149 u8 pad2;
150} efi_time_t;
151
152typedef struct {
153 u32 resolution;
154 u32 accuracy;
155 u8 sets_to_zero;
156} efi_time_cap_t;
157
158typedef struct {
159 efi_table_hdr_t hdr;
160 u32 raise_tpl;
161 u32 restore_tpl;
162 u32 allocate_pages;
163 u32 free_pages;
164 u32 get_memory_map;
165 u32 allocate_pool;
166 u32 free_pool;
167 u32 create_event;
168 u32 set_timer;
169 u32 wait_for_event;
170 u32 signal_event;
171 u32 close_event;
172 u32 check_event;
173 u32 install_protocol_interface;
174 u32 reinstall_protocol_interface;
175 u32 uninstall_protocol_interface;
176 u32 handle_protocol;
177 u32 __reserved;
178 u32 register_protocol_notify;
179 u32 locate_handle;
180 u32 locate_device_path;
181 u32 install_configuration_table;
182 u32 load_image;
183 u32 start_image;
184 u32 exit;
185 u32 unload_image;
186 u32 exit_boot_services;
187 u32 get_next_monotonic_count;
188 u32 stall;
189 u32 set_watchdog_timer;
190 u32 connect_controller;
191 u32 disconnect_controller;
192 u32 open_protocol;
193 u32 close_protocol;
194 u32 open_protocol_information;
195 u32 protocols_per_handle;
196 u32 locate_handle_buffer;
197 u32 locate_protocol;
198 u32 install_multiple_protocol_interfaces;
199 u32 uninstall_multiple_protocol_interfaces;
200 u32 calculate_crc32;
201 u32 copy_mem;
202 u32 set_mem;
203 u32 create_event_ex;
204} __packed efi_boot_services_32_t;
205
206typedef struct {
207 efi_table_hdr_t hdr;
208 u64 raise_tpl;
209 u64 restore_tpl;
210 u64 allocate_pages;
211 u64 free_pages;
212 u64 get_memory_map;
213 u64 allocate_pool;
214 u64 free_pool;
215 u64 create_event;
216 u64 set_timer;
217 u64 wait_for_event;
218 u64 signal_event;
219 u64 close_event;
220 u64 check_event;
221 u64 install_protocol_interface;
222 u64 reinstall_protocol_interface;
223 u64 uninstall_protocol_interface;
224 u64 handle_protocol;
225 u64 __reserved;
226 u64 register_protocol_notify;
227 u64 locate_handle;
228 u64 locate_device_path;
229 u64 install_configuration_table;
230 u64 load_image;
231 u64 start_image;
232 u64 exit;
233 u64 unload_image;
234 u64 exit_boot_services;
235 u64 get_next_monotonic_count;
236 u64 stall;
237 u64 set_watchdog_timer;
238 u64 connect_controller;
239 u64 disconnect_controller;
240 u64 open_protocol;
241 u64 close_protocol;
242 u64 open_protocol_information;
243 u64 protocols_per_handle;
244 u64 locate_handle_buffer;
245 u64 locate_protocol;
246 u64 install_multiple_protocol_interfaces;
247 u64 uninstall_multiple_protocol_interfaces;
248 u64 calculate_crc32;
249 u64 copy_mem;
250 u64 set_mem;
251 u64 create_event_ex;
252} __packed efi_boot_services_64_t;
253
254
255
256
257typedef struct {
258 efi_table_hdr_t hdr;
259 void *raise_tpl;
260 void *restore_tpl;
261 efi_status_t (*allocate_pages)(int, int, unsigned long,
262 efi_physical_addr_t *);
263 efi_status_t (*free_pages)(efi_physical_addr_t, unsigned long);
264 efi_status_t (*get_memory_map)(unsigned long *, void *, unsigned long *,
265 unsigned long *, u32 *);
266 efi_status_t (*allocate_pool)(int, unsigned long, void **);
267 efi_status_t (*free_pool)(void *);
268 void *create_event;
269 void *set_timer;
270 void *wait_for_event;
271 void *signal_event;
272 void *close_event;
273 void *check_event;
274 void *install_protocol_interface;
275 void *reinstall_protocol_interface;
276 void *uninstall_protocol_interface;
277 efi_status_t (*handle_protocol)(efi_handle_t, efi_guid_t *, void **);
278 void *__reserved;
279 void *register_protocol_notify;
280 void *locate_handle;
281 void *locate_device_path;
282 void *install_configuration_table;
283 void *load_image;
284 void *start_image;
285 void *exit;
286 void *unload_image;
287 efi_status_t (*exit_boot_services)(efi_handle_t, unsigned long);
288 void *get_next_monotonic_count;
289 void *stall;
290 void *set_watchdog_timer;
291 void *connect_controller;
292 void *disconnect_controller;
293 void *open_protocol;
294 void *close_protocol;
295 void *open_protocol_information;
296 void *protocols_per_handle;
297 void *locate_handle_buffer;
298 void *locate_protocol;
299 void *install_multiple_protocol_interfaces;
300 void *uninstall_multiple_protocol_interfaces;
301 void *calculate_crc32;
302 void *copy_mem;
303 void *set_mem;
304 void *create_event_ex;
305} efi_boot_services_t;
306
307typedef enum {
308 EfiPciIoWidthUint8,
309 EfiPciIoWidthUint16,
310 EfiPciIoWidthUint32,
311 EfiPciIoWidthUint64,
312 EfiPciIoWidthFifoUint8,
313 EfiPciIoWidthFifoUint16,
314 EfiPciIoWidthFifoUint32,
315 EfiPciIoWidthFifoUint64,
316 EfiPciIoWidthFillUint8,
317 EfiPciIoWidthFillUint16,
318 EfiPciIoWidthFillUint32,
319 EfiPciIoWidthFillUint64,
320 EfiPciIoWidthMaximum
321} EFI_PCI_IO_PROTOCOL_WIDTH;
322
323typedef enum {
324 EfiPciIoAttributeOperationGet,
325 EfiPciIoAttributeOperationSet,
326 EfiPciIoAttributeOperationEnable,
327 EfiPciIoAttributeOperationDisable,
328 EfiPciIoAttributeOperationSupported,
329 EfiPciIoAttributeOperationMaximum
330} EFI_PCI_IO_PROTOCOL_ATTRIBUTE_OPERATION;
331
332typedef struct {
333 u32 read;
334 u32 write;
335} efi_pci_io_protocol_access_32_t;
336
337typedef struct {
338 u64 read;
339 u64 write;
340} efi_pci_io_protocol_access_64_t;
341
342typedef struct {
343 void *read;
344 void *write;
345} efi_pci_io_protocol_access_t;
346
347typedef struct {
348 u32 poll_mem;
349 u32 poll_io;
350 efi_pci_io_protocol_access_32_t mem;
351 efi_pci_io_protocol_access_32_t io;
352 efi_pci_io_protocol_access_32_t pci;
353 u32 copy_mem;
354 u32 map;
355 u32 unmap;
356 u32 allocate_buffer;
357 u32 free_buffer;
358 u32 flush;
359 u32 get_location;
360 u32 attributes;
361 u32 get_bar_attributes;
362 u32 set_bar_attributes;
363 uint64_t romsize;
364 void *romimage;
365} efi_pci_io_protocol_32;
366
367typedef struct {
368 u64 poll_mem;
369 u64 poll_io;
370 efi_pci_io_protocol_access_64_t mem;
371 efi_pci_io_protocol_access_64_t io;
372 efi_pci_io_protocol_access_64_t pci;
373 u64 copy_mem;
374 u64 map;
375 u64 unmap;
376 u64 allocate_buffer;
377 u64 free_buffer;
378 u64 flush;
379 u64 get_location;
380 u64 attributes;
381 u64 get_bar_attributes;
382 u64 set_bar_attributes;
383 uint64_t romsize;
384 void *romimage;
385} efi_pci_io_protocol_64;
386
387typedef struct {
388 void *poll_mem;
389 void *poll_io;
390 efi_pci_io_protocol_access_t mem;
391 efi_pci_io_protocol_access_t io;
392 efi_pci_io_protocol_access_t pci;
393 void *copy_mem;
394 void *map;
395 void *unmap;
396 void *allocate_buffer;
397 void *free_buffer;
398 void *flush;
399 void *get_location;
400 void *attributes;
401 void *get_bar_attributes;
402 void *set_bar_attributes;
403 uint64_t romsize;
404 void *romimage;
405} efi_pci_io_protocol;
406
407#define EFI_PCI_IO_ATTRIBUTE_ISA_MOTHERBOARD_IO 0x0001
408#define EFI_PCI_IO_ATTRIBUTE_ISA_IO 0x0002
409#define EFI_PCI_IO_ATTRIBUTE_VGA_PALETTE_IO 0x0004
410#define EFI_PCI_IO_ATTRIBUTE_VGA_MEMORY 0x0008
411#define EFI_PCI_IO_ATTRIBUTE_VGA_IO 0x0010
412#define EFI_PCI_IO_ATTRIBUTE_IDE_PRIMARY_IO 0x0020
413#define EFI_PCI_IO_ATTRIBUTE_IDE_SECONDARY_IO 0x0040
414#define EFI_PCI_IO_ATTRIBUTE_MEMORY_WRITE_COMBINE 0x0080
415#define EFI_PCI_IO_ATTRIBUTE_IO 0x0100
416#define EFI_PCI_IO_ATTRIBUTE_MEMORY 0x0200
417#define EFI_PCI_IO_ATTRIBUTE_BUS_MASTER 0x0400
418#define EFI_PCI_IO_ATTRIBUTE_MEMORY_CACHED 0x0800
419#define EFI_PCI_IO_ATTRIBUTE_MEMORY_DISABLE 0x1000
420#define EFI_PCI_IO_ATTRIBUTE_EMBEDDED_DEVICE 0x2000
421#define EFI_PCI_IO_ATTRIBUTE_EMBEDDED_ROM 0x4000
422#define EFI_PCI_IO_ATTRIBUTE_DUAL_ADDRESS_CYCLE 0x8000
423#define EFI_PCI_IO_ATTRIBUTE_ISA_IO_16 0x10000
424#define EFI_PCI_IO_ATTRIBUTE_VGA_PALETTE_IO_16 0x20000
425#define EFI_PCI_IO_ATTRIBUTE_VGA_IO_16 0x40000
426
427
428
429
430#define EFI_RESET_COLD 0
431#define EFI_RESET_WARM 1
432#define EFI_RESET_SHUTDOWN 2
433
434
435
436
437#define EFI_RUNTIME_SERVICES_SIGNATURE ((u64)0x5652453544e5552ULL)
438#define EFI_RUNTIME_SERVICES_REVISION 0x00010000
439
440typedef struct {
441 efi_table_hdr_t hdr;
442 u32 get_time;
443 u32 set_time;
444 u32 get_wakeup_time;
445 u32 set_wakeup_time;
446 u32 set_virtual_address_map;
447 u32 convert_pointer;
448 u32 get_variable;
449 u32 get_next_variable;
450 u32 set_variable;
451 u32 get_next_high_mono_count;
452 u32 reset_system;
453 u32 update_capsule;
454 u32 query_capsule_caps;
455 u32 query_variable_info;
456} efi_runtime_services_32_t;
457
458typedef struct {
459 efi_table_hdr_t hdr;
460 u64 get_time;
461 u64 set_time;
462 u64 get_wakeup_time;
463 u64 set_wakeup_time;
464 u64 set_virtual_address_map;
465 u64 convert_pointer;
466 u64 get_variable;
467 u64 get_next_variable;
468 u64 set_variable;
469 u64 get_next_high_mono_count;
470 u64 reset_system;
471 u64 update_capsule;
472 u64 query_capsule_caps;
473 u64 query_variable_info;
474} efi_runtime_services_64_t;
475
476typedef struct {
477 efi_table_hdr_t hdr;
478 void *get_time;
479 void *set_time;
480 void *get_wakeup_time;
481 void *set_wakeup_time;
482 void *set_virtual_address_map;
483 void *convert_pointer;
484 void *get_variable;
485 void *get_next_variable;
486 void *set_variable;
487 void *get_next_high_mono_count;
488 void *reset_system;
489 void *update_capsule;
490 void *query_capsule_caps;
491 void *query_variable_info;
492} efi_runtime_services_t;
493
494typedef efi_status_t efi_get_time_t (efi_time_t *tm, efi_time_cap_t *tc);
495typedef efi_status_t efi_set_time_t (efi_time_t *tm);
496typedef efi_status_t efi_get_wakeup_time_t (efi_bool_t *enabled, efi_bool_t *pending,
497 efi_time_t *tm);
498typedef efi_status_t efi_set_wakeup_time_t (efi_bool_t enabled, efi_time_t *tm);
499typedef efi_status_t efi_get_variable_t (efi_char16_t *name, efi_guid_t *vendor, u32 *attr,
500 unsigned long *data_size, void *data);
501typedef efi_status_t efi_get_next_variable_t (unsigned long *name_size, efi_char16_t *name,
502 efi_guid_t *vendor);
503typedef efi_status_t efi_set_variable_t (efi_char16_t *name, efi_guid_t *vendor,
504 u32 attr, unsigned long data_size,
505 void *data);
506typedef efi_status_t
507efi_set_variable_nonblocking_t(efi_char16_t *name, efi_guid_t *vendor,
508 u32 attr, unsigned long data_size, void *data);
509
510typedef efi_status_t efi_get_next_high_mono_count_t (u32 *count);
511typedef void efi_reset_system_t (int reset_type, efi_status_t status,
512 unsigned long data_size, efi_char16_t *data);
513typedef efi_status_t efi_set_virtual_address_map_t (unsigned long memory_map_size,
514 unsigned long descriptor_size,
515 u32 descriptor_version,
516 efi_memory_desc_t *virtual_map);
517typedef efi_status_t efi_query_variable_info_t(u32 attr,
518 u64 *storage_space,
519 u64 *remaining_space,
520 u64 *max_variable_size);
521typedef efi_status_t efi_update_capsule_t(efi_capsule_header_t **capsules,
522 unsigned long count,
523 unsigned long sg_list);
524typedef efi_status_t efi_query_capsule_caps_t(efi_capsule_header_t **capsules,
525 unsigned long count,
526 u64 *max_size,
527 int *reset_type);
528typedef efi_status_t efi_query_variable_store_t(u32 attributes, unsigned long size);
529
530void efi_native_runtime_setup(void);
531
532
533
534
535#define NULL_GUID \
536 EFI_GUID( 0x00000000, 0x0000, 0x0000, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 )
537
538#define MPS_TABLE_GUID \
539 EFI_GUID( 0xeb9d2d2f, 0x2d88, 0x11d3, 0x9a, 0x16, 0x0, 0x90, 0x27, 0x3f, 0xc1, 0x4d )
540
541#define ACPI_TABLE_GUID \
542 EFI_GUID( 0xeb9d2d30, 0x2d88, 0x11d3, 0x9a, 0x16, 0x0, 0x90, 0x27, 0x3f, 0xc1, 0x4d )
543
544#define ACPI_20_TABLE_GUID \
545 EFI_GUID( 0x8868e871, 0xe4f1, 0x11d3, 0xbc, 0x22, 0x0, 0x80, 0xc7, 0x3c, 0x88, 0x81 )
546
547#define SMBIOS_TABLE_GUID \
548 EFI_GUID( 0xeb9d2d31, 0x2d88, 0x11d3, 0x9a, 0x16, 0x0, 0x90, 0x27, 0x3f, 0xc1, 0x4d )
549
550#define SAL_SYSTEM_TABLE_GUID \
551 EFI_GUID( 0xeb9d2d32, 0x2d88, 0x11d3, 0x9a, 0x16, 0x0, 0x90, 0x27, 0x3f, 0xc1, 0x4d )
552
553#define HCDP_TABLE_GUID \
554 EFI_GUID( 0xf951938d, 0x620b, 0x42ef, 0x82, 0x79, 0xa8, 0x4b, 0x79, 0x61, 0x78, 0x98 )
555
556#define UGA_IO_PROTOCOL_GUID \
557 EFI_GUID( 0x61a4d49e, 0x6f68, 0x4f1b, 0xb9, 0x22, 0xa8, 0x6e, 0xed, 0xb, 0x7, 0xa2 )
558
559#define EFI_GLOBAL_VARIABLE_GUID \
560 EFI_GUID( 0x8be4df61, 0x93ca, 0x11d2, 0xaa, 0x0d, 0x00, 0xe0, 0x98, 0x03, 0x2b, 0x8c )
561
562#define UV_SYSTEM_TABLE_GUID \
563 EFI_GUID( 0x3b13a7d4, 0x633e, 0x11dd, 0x93, 0xec, 0xda, 0x25, 0x56, 0xd8, 0x95, 0x93 )
564
565#define LINUX_EFI_CRASH_GUID \
566 EFI_GUID( 0xcfc8fc79, 0xbe2e, 0x4ddc, 0x97, 0xf0, 0x9f, 0x98, 0xbf, 0xe2, 0x98, 0xa0 )
567
568#define LOADED_IMAGE_PROTOCOL_GUID \
569 EFI_GUID( 0x5b1b31a1, 0x9562, 0x11d2, 0x8e, 0x3f, 0x00, 0xa0, 0xc9, 0x69, 0x72, 0x3b )
570
571#define EFI_GRAPHICS_OUTPUT_PROTOCOL_GUID \
572 EFI_GUID( 0x9042a9de, 0x23dc, 0x4a38, 0x96, 0xfb, 0x7a, 0xde, 0xd0, 0x80, 0x51, 0x6a )
573
574#define EFI_UGA_PROTOCOL_GUID \
575 EFI_GUID( 0x982c298b, 0xf4fa, 0x41cb, 0xb8, 0x38, 0x77, 0xaa, 0x68, 0x8f, 0xb8, 0x39 )
576
577#define EFI_PCI_IO_PROTOCOL_GUID \
578 EFI_GUID( 0x4cf5b200, 0x68b8, 0x4ca5, 0x9e, 0xec, 0xb2, 0x3e, 0x3f, 0x50, 0x2, 0x9a )
579
580#define EFI_FILE_INFO_ID \
581 EFI_GUID( 0x9576e92, 0x6d3f, 0x11d2, 0x8e, 0x39, 0x00, 0xa0, 0xc9, 0x69, 0x72, 0x3b )
582
583#define EFI_FILE_SYSTEM_GUID \
584 EFI_GUID( 0x964e5b22, 0x6459, 0x11d2, 0x8e, 0x39, 0x00, 0xa0, 0xc9, 0x69, 0x72, 0x3b )
585
586#define DEVICE_TREE_GUID \
587 EFI_GUID( 0xb1b621d5, 0xf19c, 0x41a5, 0x83, 0x0b, 0xd9, 0x15, 0x2c, 0x69, 0xaa, 0xe0 )
588
589typedef struct {
590 efi_guid_t guid;
591 u64 table;
592} efi_config_table_64_t;
593
594typedef struct {
595 efi_guid_t guid;
596 u32 table;
597} efi_config_table_32_t;
598
599typedef struct {
600 efi_guid_t guid;
601 unsigned long table;
602} efi_config_table_t;
603
604typedef struct {
605 efi_guid_t guid;
606 const char *name;
607 unsigned long *ptr;
608} efi_config_table_type_t;
609
610#define EFI_SYSTEM_TABLE_SIGNATURE ((u64)0x5453595320494249ULL)
611
612#define EFI_2_30_SYSTEM_TABLE_REVISION ((2 << 16) | (30))
613#define EFI_2_20_SYSTEM_TABLE_REVISION ((2 << 16) | (20))
614#define EFI_2_10_SYSTEM_TABLE_REVISION ((2 << 16) | (10))
615#define EFI_2_00_SYSTEM_TABLE_REVISION ((2 << 16) | (00))
616#define EFI_1_10_SYSTEM_TABLE_REVISION ((1 << 16) | (10))
617#define EFI_1_02_SYSTEM_TABLE_REVISION ((1 << 16) | (02))
618
619typedef struct {
620 efi_table_hdr_t hdr;
621 u64 fw_vendor;
622 u32 fw_revision;
623 u32 __pad1;
624 u64 con_in_handle;
625 u64 con_in;
626 u64 con_out_handle;
627 u64 con_out;
628 u64 stderr_handle;
629 u64 stderr;
630 u64 runtime;
631 u64 boottime;
632 u32 nr_tables;
633 u32 __pad2;
634 u64 tables;
635} efi_system_table_64_t;
636
637typedef struct {
638 efi_table_hdr_t hdr;
639 u32 fw_vendor;
640 u32 fw_revision;
641 u32 con_in_handle;
642 u32 con_in;
643 u32 con_out_handle;
644 u32 con_out;
645 u32 stderr_handle;
646 u32 stderr;
647 u32 runtime;
648 u32 boottime;
649 u32 nr_tables;
650 u32 tables;
651} efi_system_table_32_t;
652
653typedef struct {
654 efi_table_hdr_t hdr;
655 unsigned long fw_vendor;
656 u32 fw_revision;
657 unsigned long con_in_handle;
658 unsigned long con_in;
659 unsigned long con_out_handle;
660 unsigned long con_out;
661 unsigned long stderr_handle;
662 unsigned long stderr;
663 efi_runtime_services_t *runtime;
664 efi_boot_services_t *boottime;
665 unsigned long nr_tables;
666 unsigned long tables;
667} efi_system_table_t;
668
669struct efi_memory_map {
670 void *phys_map;
671 void *map;
672 void *map_end;
673 int nr_map;
674 unsigned long desc_version;
675 unsigned long desc_size;
676};
677
678struct efi_fdt_params {
679 u64 system_table;
680 u64 mmap;
681 u32 mmap_size;
682 u32 desc_size;
683 u32 desc_ver;
684};
685
686typedef struct {
687 u32 revision;
688 u32 parent_handle;
689 u32 system_table;
690 u32 device_handle;
691 u32 file_path;
692 u32 reserved;
693 u32 load_options_size;
694 u32 load_options;
695 u32 image_base;
696 __aligned_u64 image_size;
697 unsigned int image_code_type;
698 unsigned int image_data_type;
699 unsigned long unload;
700} efi_loaded_image_32_t;
701
702typedef struct {
703 u32 revision;
704 u64 parent_handle;
705 u64 system_table;
706 u64 device_handle;
707 u64 file_path;
708 u64 reserved;
709 u32 load_options_size;
710 u64 load_options;
711 u64 image_base;
712 __aligned_u64 image_size;
713 unsigned int image_code_type;
714 unsigned int image_data_type;
715 unsigned long unload;
716} efi_loaded_image_64_t;
717
718typedef struct {
719 u32 revision;
720 void *parent_handle;
721 efi_system_table_t *system_table;
722 void *device_handle;
723 void *file_path;
724 void *reserved;
725 u32 load_options_size;
726 void *load_options;
727 void *image_base;
728 __aligned_u64 image_size;
729 unsigned int image_code_type;
730 unsigned int image_data_type;
731 unsigned long unload;
732} efi_loaded_image_t;
733
734
735typedef struct {
736 u64 size;
737 u64 file_size;
738 u64 phys_size;
739 efi_time_t create_time;
740 efi_time_t last_access_time;
741 efi_time_t modification_time;
742 __aligned_u64 attribute;
743 efi_char16_t filename[1];
744} efi_file_info_t;
745
746typedef struct {
747 u64 revision;
748 u32 open;
749 u32 close;
750 u32 delete;
751 u32 read;
752 u32 write;
753 u32 get_position;
754 u32 set_position;
755 u32 get_info;
756 u32 set_info;
757 u32 flush;
758} efi_file_handle_32_t;
759
760typedef struct {
761 u64 revision;
762 u64 open;
763 u64 close;
764 u64 delete;
765 u64 read;
766 u64 write;
767 u64 get_position;
768 u64 set_position;
769 u64 get_info;
770 u64 set_info;
771 u64 flush;
772} efi_file_handle_64_t;
773
774typedef struct _efi_file_handle {
775 u64 revision;
776 efi_status_t (*open)(struct _efi_file_handle *,
777 struct _efi_file_handle **,
778 efi_char16_t *, u64, u64);
779 efi_status_t (*close)(struct _efi_file_handle *);
780 void *delete;
781 efi_status_t (*read)(struct _efi_file_handle *, unsigned long *,
782 void *);
783 void *write;
784 void *get_position;
785 void *set_position;
786 efi_status_t (*get_info)(struct _efi_file_handle *, efi_guid_t *,
787 unsigned long *, void *);
788 void *set_info;
789 void *flush;
790} efi_file_handle_t;
791
792typedef struct _efi_file_io_interface {
793 u64 revision;
794 int (*open_volume)(struct _efi_file_io_interface *,
795 efi_file_handle_t **);
796} efi_file_io_interface_t;
797
798#define EFI_FILE_MODE_READ 0x0000000000000001
799#define EFI_FILE_MODE_WRITE 0x0000000000000002
800#define EFI_FILE_MODE_CREATE 0x8000000000000000
801
802#define EFI_INVALID_TABLE_ADDR (~0UL)
803
804
805
806
807extern struct efi {
808 efi_system_table_t *systab;
809 unsigned int runtime_version;
810 unsigned long mps;
811 unsigned long acpi;
812 unsigned long acpi20;
813 unsigned long smbios;
814 unsigned long sal_systab;
815 unsigned long boot_info;
816 unsigned long hcdp;
817 unsigned long uga;
818 unsigned long uv_systab;
819 unsigned long fw_vendor;
820 unsigned long runtime;
821 unsigned long config_table;
822 efi_get_time_t *get_time;
823 efi_set_time_t *set_time;
824 efi_get_wakeup_time_t *get_wakeup_time;
825 efi_set_wakeup_time_t *set_wakeup_time;
826 efi_get_variable_t *get_variable;
827 efi_get_next_variable_t *get_next_variable;
828 efi_set_variable_t *set_variable;
829 efi_set_variable_nonblocking_t *set_variable_nonblocking;
830 efi_query_variable_info_t *query_variable_info;
831 efi_update_capsule_t *update_capsule;
832 efi_query_capsule_caps_t *query_capsule_caps;
833 efi_get_next_high_mono_count_t *get_next_high_mono_count;
834 efi_reset_system_t *reset_system;
835 efi_set_virtual_address_map_t *set_virtual_address_map;
836 struct efi_memory_map *memmap;
837 unsigned long flags;
838} efi;
839
840static inline int
841efi_guidcmp (efi_guid_t left, efi_guid_t right)
842{
843 return memcmp(&left, &right, sizeof (efi_guid_t));
844}
845
846static inline char *
847efi_guid_unparse(efi_guid_t *guid, char *out)
848{
849 sprintf(out, "%pUl", guid->b);
850 return out;
851}
852
853extern void efi_init (void);
854extern void *efi_get_pal_addr (void);
855extern void efi_map_pal_code (void);
856extern void efi_memmap_walk (efi_freemem_callback_t callback, void *arg);
857extern void efi_gettimeofday (struct timespec *ts);
858extern void efi_enter_virtual_mode (void);
859#ifdef CONFIG_X86
860extern void efi_late_init(void);
861extern void efi_free_boot_services(void);
862extern efi_status_t efi_query_variable_store(u32 attributes, unsigned long size);
863#else
864static inline void efi_late_init(void) {}
865static inline void efi_free_boot_services(void) {}
866
867static inline efi_status_t efi_query_variable_store(u32 attributes, unsigned long size)
868{
869 return EFI_SUCCESS;
870}
871#endif
872extern void __iomem *efi_lookup_mapped_addr(u64 phys_addr);
873extern int efi_config_init(efi_config_table_type_t *arch_tables);
874extern u64 efi_get_iobase (void);
875extern u32 efi_mem_type (unsigned long phys_addr);
876extern u64 efi_mem_attributes (unsigned long phys_addr);
877extern u64 efi_mem_attribute (unsigned long phys_addr, unsigned long size);
878extern int __init efi_uart_console_only (void);
879extern void efi_initialize_iomem_resources(struct resource *code_resource,
880 struct resource *data_resource, struct resource *bss_resource);
881extern void efi_get_time(struct timespec *now);
882extern void efi_reserve_boot_services(void);
883extern int efi_get_fdt_params(struct efi_fdt_params *params, int verbose);
884extern struct efi_memory_map memmap;
885
886extern int efi_reboot_quirk_mode;
887extern bool efi_poweroff_required(void);
888
889
890#define for_each_efi_memory_desc(m, md) \
891 for ((md) = (m)->map; \
892 (md) <= (efi_memory_desc_t *)((m)->map_end - (m)->desc_size); \
893 (md) = (void *)(md) + (m)->desc_size)
894
895
896
897
898
899char * __init efi_md_typeattr_format(char *buf, size_t size,
900 const efi_memory_desc_t *md);
901
902
903
904
905
906
907
908
909
910static inline int efi_range_is_wc(unsigned long start, unsigned long len)
911{
912 unsigned long i;
913
914 for (i = 0; i < len; i += (1UL << EFI_PAGE_SHIFT)) {
915 unsigned long paddr = __pa(start + i);
916 if (!(efi_mem_attributes(paddr) & EFI_MEMORY_WC))
917 return 0;
918 }
919
920 return 1;
921}
922
923#ifdef CONFIG_EFI_PCDP
924extern int __init efi_setup_pcdp_console(char *);
925#endif
926
927
928
929
930
931#define EFI_BOOT 0
932#define EFI_SYSTEM_TABLES 1
933#define EFI_CONFIG_TABLES 2
934#define EFI_RUNTIME_SERVICES 3
935#define EFI_MEMMAP 4
936#define EFI_64BIT 5
937#define EFI_PARAVIRT 6
938#define EFI_ARCH_1 7
939
940#ifdef CONFIG_EFI
941
942
943
944static inline bool efi_enabled(int feature)
945{
946 return test_bit(feature, &efi.flags) != 0;
947}
948extern void efi_reboot(enum reboot_mode reboot_mode, const char *__unused);
949#else
950static inline bool efi_enabled(int feature)
951{
952 return false;
953}
954static inline void
955efi_reboot(enum reboot_mode reboot_mode, const char *__unused) {}
956#endif
957
958
959
960
961#define EFI_VARIABLE_NON_VOLATILE 0x0000000000000001
962#define EFI_VARIABLE_BOOTSERVICE_ACCESS 0x0000000000000002
963#define EFI_VARIABLE_RUNTIME_ACCESS 0x0000000000000004
964#define EFI_VARIABLE_HARDWARE_ERROR_RECORD 0x0000000000000008
965#define EFI_VARIABLE_AUTHENTICATED_WRITE_ACCESS 0x0000000000000010
966#define EFI_VARIABLE_TIME_BASED_AUTHENTICATED_WRITE_ACCESS 0x0000000000000020
967#define EFI_VARIABLE_APPEND_WRITE 0x0000000000000040
968
969#define EFI_VARIABLE_MASK (EFI_VARIABLE_NON_VOLATILE | \
970 EFI_VARIABLE_BOOTSERVICE_ACCESS | \
971 EFI_VARIABLE_RUNTIME_ACCESS | \
972 EFI_VARIABLE_HARDWARE_ERROR_RECORD | \
973 EFI_VARIABLE_AUTHENTICATED_WRITE_ACCESS | \
974 EFI_VARIABLE_TIME_BASED_AUTHENTICATED_WRITE_ACCESS | \
975 EFI_VARIABLE_APPEND_WRITE)
976
977
978
979
980#define EFI_VARIABLE_GUID_LEN 36
981
982
983
984
985#define EFI_LOCATE_ALL_HANDLES 0
986#define EFI_LOCATE_BY_REGISTER_NOTIFY 1
987#define EFI_LOCATE_BY_PROTOCOL 2
988
989
990
991
992#define EFI_DEV_HW 0x01
993#define EFI_DEV_PCI 1
994#define EFI_DEV_PCCARD 2
995#define EFI_DEV_MEM_MAPPED 3
996#define EFI_DEV_VENDOR 4
997#define EFI_DEV_CONTROLLER 5
998#define EFI_DEV_ACPI 0x02
999#define EFI_DEV_BASIC_ACPI 1
1000#define EFI_DEV_EXPANDED_ACPI 2
1001#define EFI_DEV_MSG 0x03
1002#define EFI_DEV_MSG_ATAPI 1
1003#define EFI_DEV_MSG_SCSI 2
1004#define EFI_DEV_MSG_FC 3
1005#define EFI_DEV_MSG_1394 4
1006#define EFI_DEV_MSG_USB 5
1007#define EFI_DEV_MSG_USB_CLASS 15
1008#define EFI_DEV_MSG_I20 6
1009#define EFI_DEV_MSG_MAC 11
1010#define EFI_DEV_MSG_IPV4 12
1011#define EFI_DEV_MSG_IPV6 13
1012#define EFI_DEV_MSG_INFINIBAND 9
1013#define EFI_DEV_MSG_UART 14
1014#define EFI_DEV_MSG_VENDOR 10
1015#define EFI_DEV_MEDIA 0x04
1016#define EFI_DEV_MEDIA_HARD_DRIVE 1
1017#define EFI_DEV_MEDIA_CDROM 2
1018#define EFI_DEV_MEDIA_VENDOR 3
1019#define EFI_DEV_MEDIA_FILE 4
1020#define EFI_DEV_MEDIA_PROTOCOL 5
1021#define EFI_DEV_BIOS_BOOT 0x05
1022#define EFI_DEV_END_PATH 0x7F
1023#define EFI_DEV_END_PATH2 0xFF
1024#define EFI_DEV_END_INSTANCE 0x01
1025#define EFI_DEV_END_ENTIRE 0xFF
1026
1027struct efi_generic_dev_path {
1028 u8 type;
1029 u8 sub_type;
1030 u16 length;
1031} __attribute ((packed));
1032
1033static inline void memrange_efi_to_native(u64 *addr, u64 *npages)
1034{
1035 *npages = PFN_UP(*addr + (*npages<<EFI_PAGE_SHIFT)) - PFN_DOWN(*addr);
1036 *addr &= PAGE_MASK;
1037}
1038
1039
1040
1041
1042
1043
1044
1045
1046struct efivar_operations {
1047 efi_get_variable_t *get_variable;
1048 efi_get_next_variable_t *get_next_variable;
1049 efi_set_variable_t *set_variable;
1050 efi_set_variable_nonblocking_t *set_variable_nonblocking;
1051 efi_query_variable_store_t *query_variable_store;
1052};
1053
1054struct efivars {
1055
1056
1057
1058
1059
1060 spinlock_t lock;
1061 struct kset *kset;
1062 struct kobject *kobject;
1063 const struct efivar_operations *ops;
1064};
1065
1066
1067
1068
1069
1070
1071
1072
1073#define EFI_VAR_NAME_LEN 1024
1074
1075struct efi_variable {
1076 efi_char16_t VariableName[EFI_VAR_NAME_LEN/sizeof(efi_char16_t)];
1077 efi_guid_t VendorGuid;
1078 unsigned long DataSize;
1079 __u8 Data[1024];
1080 efi_status_t Status;
1081 __u32 Attributes;
1082} __attribute__((packed));
1083
1084struct efivar_entry {
1085 struct efi_variable var;
1086 struct list_head list;
1087 struct kobject kobj;
1088 bool scanning;
1089 bool deleting;
1090};
1091
1092struct efi_simple_text_output_protocol_32 {
1093 u32 reset;
1094 u32 output_string;
1095 u32 test_string;
1096};
1097
1098struct efi_simple_text_output_protocol_64 {
1099 u64 reset;
1100 u64 output_string;
1101 u64 test_string;
1102};
1103
1104struct efi_simple_text_output_protocol {
1105 void *reset;
1106 efi_status_t (*output_string)(void *, void *);
1107 void *test_string;
1108};
1109
1110extern struct list_head efivar_sysfs_list;
1111
1112static inline void
1113efivar_unregister(struct efivar_entry *var)
1114{
1115 kobject_put(&var->kobj);
1116}
1117
1118int efivars_register(struct efivars *efivars,
1119 const struct efivar_operations *ops,
1120 struct kobject *kobject);
1121int efivars_unregister(struct efivars *efivars);
1122struct kobject *efivars_kobject(void);
1123
1124int efivar_init(int (*func)(efi_char16_t *, efi_guid_t, unsigned long, void *),
1125 void *data, bool atomic, bool duplicates,
1126 struct list_head *head);
1127
1128void efivar_entry_add(struct efivar_entry *entry, struct list_head *head);
1129void efivar_entry_remove(struct efivar_entry *entry);
1130
1131int __efivar_entry_delete(struct efivar_entry *entry);
1132int efivar_entry_delete(struct efivar_entry *entry);
1133
1134int efivar_entry_size(struct efivar_entry *entry, unsigned long *size);
1135int __efivar_entry_get(struct efivar_entry *entry, u32 *attributes,
1136 unsigned long *size, void *data);
1137int efivar_entry_get(struct efivar_entry *entry, u32 *attributes,
1138 unsigned long *size, void *data);
1139int efivar_entry_set(struct efivar_entry *entry, u32 attributes,
1140 unsigned long size, void *data, struct list_head *head);
1141int efivar_entry_set_get_size(struct efivar_entry *entry, u32 attributes,
1142 unsigned long *size, void *data, bool *set);
1143int efivar_entry_set_safe(efi_char16_t *name, efi_guid_t vendor, u32 attributes,
1144 bool block, unsigned long size, void *data);
1145
1146void efivar_entry_iter_begin(void);
1147void efivar_entry_iter_end(void);
1148
1149int __efivar_entry_iter(int (*func)(struct efivar_entry *, void *),
1150 struct list_head *head, void *data,
1151 struct efivar_entry **prev);
1152int efivar_entry_iter(int (*func)(struct efivar_entry *, void *),
1153 struct list_head *head, void *data);
1154
1155struct efivar_entry *efivar_entry_find(efi_char16_t *name, efi_guid_t guid,
1156 struct list_head *head, bool remove);
1157
1158bool efivar_validate(efi_char16_t *var_name, u8 *data, unsigned long len);
1159
1160extern struct work_struct efivar_work;
1161void efivar_run_worker(void);
1162
1163#if defined(CONFIG_EFI_VARS) || defined(CONFIG_EFI_VARS_MODULE)
1164int efivars_sysfs_init(void);
1165
1166#define EFIVARS_DATA_SIZE_MAX 1024
1167
1168#endif
1169
1170#ifdef CONFIG_EFI_RUNTIME_MAP
1171int efi_runtime_map_init(struct kobject *);
1172void efi_runtime_map_setup(void *, int, u32);
1173int efi_get_runtime_map_size(void);
1174int efi_get_runtime_map_desc_size(void);
1175int efi_runtime_map_copy(void *buf, size_t bufsz);
1176#else
1177static inline int efi_runtime_map_init(struct kobject *kobj)
1178{
1179 return 0;
1180}
1181
1182static inline void
1183efi_runtime_map_setup(void *map, int nr_entries, u32 desc_size) {}
1184
1185static inline int efi_get_runtime_map_size(void)
1186{
1187 return 0;
1188}
1189
1190static inline int efi_get_runtime_map_desc_size(void)
1191{
1192 return 0;
1193}
1194
1195static inline int efi_runtime_map_copy(void *buf, size_t bufsz)
1196{
1197 return 0;
1198}
1199
1200#endif
1201
1202
1203
1204#define pr_efi(sys_table, msg) efi_printk(sys_table, "EFI stub: "msg)
1205#define pr_efi_err(sys_table, msg) efi_printk(sys_table, "EFI stub: ERROR: "msg)
1206
1207void efi_printk(efi_system_table_t *sys_table_arg, char *str);
1208
1209void efi_free(efi_system_table_t *sys_table_arg, unsigned long size,
1210 unsigned long addr);
1211
1212char *efi_convert_cmdline(efi_system_table_t *sys_table_arg,
1213 efi_loaded_image_t *image, int *cmd_line_len);
1214
1215efi_status_t efi_get_memory_map(efi_system_table_t *sys_table_arg,
1216 efi_memory_desc_t **map,
1217 unsigned long *map_size,
1218 unsigned long *desc_size,
1219 u32 *desc_ver,
1220 unsigned long *key_ptr);
1221
1222efi_status_t efi_low_alloc(efi_system_table_t *sys_table_arg,
1223 unsigned long size, unsigned long align,
1224 unsigned long *addr);
1225
1226efi_status_t efi_high_alloc(efi_system_table_t *sys_table_arg,
1227 unsigned long size, unsigned long align,
1228 unsigned long *addr, unsigned long max);
1229
1230efi_status_t efi_relocate_kernel(efi_system_table_t *sys_table_arg,
1231 unsigned long *image_addr,
1232 unsigned long image_size,
1233 unsigned long alloc_size,
1234 unsigned long preferred_addr,
1235 unsigned long alignment);
1236
1237efi_status_t handle_cmdline_files(efi_system_table_t *sys_table_arg,
1238 efi_loaded_image_t *image,
1239 char *cmd_line, char *option_string,
1240 unsigned long max_addr,
1241 unsigned long *load_addr,
1242 unsigned long *load_size);
1243
1244efi_status_t efi_parse_options(char *cmdline);
1245
1246bool efi_runtime_disabled(void);
1247#endif
1248
