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/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
40 typedef unsigned long efi_status_t;
41 typedef u8 efi_bool_t;
42 typedef u16 efi_char16_t; /* UNICODE character */
43 typedef u64 efi_physical_addr_t;
44 typedef void *efi_handle_t;
45
46
47 typedef 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 * Generic EFI table header
60 */
61 typedef struct {
62 u64 signature;
63 u32 revision;
64 u32 headersize;
65 u32 crc32;
66 u32 reserved;
67 } efi_table_hdr_t;
68
69 /*
70 * Memory map descriptor:
71 */
72
73 /* Memory types: */
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 /* Attribute values: */
91 #define EFI_MEMORY_UC ((u64)0x0000000000000001ULL) /* uncached */
92 #define EFI_MEMORY_WC ((u64)0x0000000000000002ULL) /* write-coalescing */
93 #define EFI_MEMORY_WT ((u64)0x0000000000000004ULL) /* write-through */
94 #define EFI_MEMORY_WB ((u64)0x0000000000000008ULL) /* write-back */
95 #define EFI_MEMORY_UCE ((u64)0x0000000000000010ULL) /* uncached, exported */
96 #define EFI_MEMORY_WP ((u64)0x0000000000001000ULL) /* write-protect */
97 #define EFI_MEMORY_RP ((u64)0x0000000000002000ULL) /* read-protect */
98 #define EFI_MEMORY_XP ((u64)0x0000000000004000ULL) /* execute-protect */
99 #define EFI_MEMORY_RUNTIME ((u64)0x8000000000000000ULL) /* range requires runtime mapping */
100 #define EFI_MEMORY_DESCRIPTOR_VERSION 1
101
102 #define EFI_PAGE_SHIFT 12
103 #define EFI_PAGE_SIZE (1UL << EFI_PAGE_SHIFT)
104
105 typedef 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
114 typedef struct {
115 efi_guid_t guid;
116 u32 headersize;
117 u32 flags;
118 u32 imagesize;
119 } efi_capsule_header_t;
120
121 /*
122 * Allocation types for calls to boottime->allocate_pages.
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
129 typedef int (*efi_freemem_callback_t) (u64 start, u64 end, void *arg);
130
131 /*
132 * Types and defines for Time Services
133 */
134 #define EFI_TIME_ADJUST_DAYLIGHT 0x1
135 #define EFI_TIME_IN_DAYLIGHT 0x2
136 #define EFI_UNSPECIFIED_TIMEZONE 0x07ff
137
138 typedef 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
152 typedef struct {
153 u32 resolution;
154 u32 accuracy;
155 u8 sets_to_zero;
156 } efi_time_cap_t;
157
158 typedef 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
206 typedef 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 * EFI Boot Services table
256 */
257 typedef 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
307 typedef 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
323 typedef enum {
324 EfiPciIoAttributeOperationGet,
325 EfiPciIoAttributeOperationSet,
326 EfiPciIoAttributeOperationEnable,
327 EfiPciIoAttributeOperationDisable,
328 EfiPciIoAttributeOperationSupported,
329 EfiPciIoAttributeOperationMaximum
330 } EFI_PCI_IO_PROTOCOL_ATTRIBUTE_OPERATION;
331
332 typedef struct {
333 u32 read;
334 u32 write;
335 } efi_pci_io_protocol_access_32_t;
336
337 typedef struct {
338 u64 read;
339 u64 write;
340 } efi_pci_io_protocol_access_64_t;
341
342 typedef struct {
343 void *read;
344 void *write;
345 } efi_pci_io_protocol_access_t;
346
347 typedef 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
367 typedef 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
387 typedef 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 * Types and defines for EFI ResetSystem
429 */
430 #define EFI_RESET_COLD 0
431 #define EFI_RESET_WARM 1
432 #define EFI_RESET_SHUTDOWN 2
433
434 /*
435 * EFI Runtime Services table
436 */
437 #define EFI_RUNTIME_SERVICES_SIGNATURE ((u64)0x5652453544e5552ULL)
438 #define EFI_RUNTIME_SERVICES_REVISION 0x00010000
439
440 typedef 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
458 typedef 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
476 typedef 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
494 typedef efi_status_t efi_get_time_t (efi_time_t *tm, efi_time_cap_t *tc);
495 typedef efi_status_t efi_set_time_t (efi_time_t *tm);
496 typedef efi_status_t efi_get_wakeup_time_t (efi_bool_t *enabled, efi_bool_t *pending,
497 efi_time_t *tm);
498 typedef efi_status_t efi_set_wakeup_time_t (efi_bool_t enabled, efi_time_t *tm);
499 typedef efi_status_t efi_get_variable_t (efi_char16_t *name, efi_guid_t *vendor, u32 *attr,
500 unsigned long *data_size, void *data);
501 typedef efi_status_t efi_get_next_variable_t (unsigned long *name_size, efi_char16_t *name,
502 efi_guid_t *vendor);
503 typedef 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);
506 typedef efi_status_t
507 efi_set_variable_nonblocking_t(efi_char16_t *name, efi_guid_t *vendor,
508 u32 attr, unsigned long data_size, void *data);
509
510 typedef efi_status_t efi_get_next_high_mono_count_t (u32 *count);
511 typedef void efi_reset_system_t (int reset_type, efi_status_t status,
512 unsigned long data_size, efi_char16_t *data);
513 typedef 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);
517 typedef efi_status_t efi_query_variable_info_t(u32 attr,
518 u64 *storage_space,
519 u64 *remaining_space,
520 u64 *max_variable_size);
521 typedef efi_status_t efi_update_capsule_t(efi_capsule_header_t **capsules,
522 unsigned long count,
523 unsigned long sg_list);
524 typedef 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);
528 typedef efi_status_t efi_query_variable_store_t(u32 attributes, unsigned long size);
529
530 void efi_native_runtime_setup(void);
531
532 /*
533 * EFI Configuration Table and GUID definitions
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 SMBIOS3_TABLE_GUID \
551 EFI_GUID( 0xf2fd1544, 0x9794, 0x4a2c, 0x99, 0x2e, 0xe5, 0xbb, 0xcf, 0x20, 0xe3, 0x94 )
552
553 #define SAL_SYSTEM_TABLE_GUID \
554 EFI_GUID( 0xeb9d2d32, 0x2d88, 0x11d3, 0x9a, 0x16, 0x0, 0x90, 0x27, 0x3f, 0xc1, 0x4d )
555
556 #define HCDP_TABLE_GUID \
557 EFI_GUID( 0xf951938d, 0x620b, 0x42ef, 0x82, 0x79, 0xa8, 0x4b, 0x79, 0x61, 0x78, 0x98 )
558
559 #define UGA_IO_PROTOCOL_GUID \
560 EFI_GUID( 0x61a4d49e, 0x6f68, 0x4f1b, 0xb9, 0x22, 0xa8, 0x6e, 0xed, 0xb, 0x7, 0xa2 )
561
562 #define EFI_GLOBAL_VARIABLE_GUID \
563 EFI_GUID( 0x8be4df61, 0x93ca, 0x11d2, 0xaa, 0x0d, 0x00, 0xe0, 0x98, 0x03, 0x2b, 0x8c )
564
565 #define UV_SYSTEM_TABLE_GUID \
566 EFI_GUID( 0x3b13a7d4, 0x633e, 0x11dd, 0x93, 0xec, 0xda, 0x25, 0x56, 0xd8, 0x95, 0x93 )
567
568 #define LINUX_EFI_CRASH_GUID \
569 EFI_GUID( 0xcfc8fc79, 0xbe2e, 0x4ddc, 0x97, 0xf0, 0x9f, 0x98, 0xbf, 0xe2, 0x98, 0xa0 )
570
571 #define LOADED_IMAGE_PROTOCOL_GUID \
572 EFI_GUID( 0x5b1b31a1, 0x9562, 0x11d2, 0x8e, 0x3f, 0x00, 0xa0, 0xc9, 0x69, 0x72, 0x3b )
573
574 #define EFI_GRAPHICS_OUTPUT_PROTOCOL_GUID \
575 EFI_GUID( 0x9042a9de, 0x23dc, 0x4a38, 0x96, 0xfb, 0x7a, 0xde, 0xd0, 0x80, 0x51, 0x6a )
576
577 #define EFI_UGA_PROTOCOL_GUID \
578 EFI_GUID( 0x982c298b, 0xf4fa, 0x41cb, 0xb8, 0x38, 0x77, 0xaa, 0x68, 0x8f, 0xb8, 0x39 )
579
580 #define EFI_PCI_IO_PROTOCOL_GUID \
581 EFI_GUID( 0x4cf5b200, 0x68b8, 0x4ca5, 0x9e, 0xec, 0xb2, 0x3e, 0x3f, 0x50, 0x2, 0x9a )
582
583 #define EFI_FILE_INFO_ID \
584 EFI_GUID( 0x9576e92, 0x6d3f, 0x11d2, 0x8e, 0x39, 0x00, 0xa0, 0xc9, 0x69, 0x72, 0x3b )
585
586 #define EFI_FILE_SYSTEM_GUID \
587 EFI_GUID( 0x964e5b22, 0x6459, 0x11d2, 0x8e, 0x39, 0x00, 0xa0, 0xc9, 0x69, 0x72, 0x3b )
588
589 #define DEVICE_TREE_GUID \
590 EFI_GUID( 0xb1b621d5, 0xf19c, 0x41a5, 0x83, 0x0b, 0xd9, 0x15, 0x2c, 0x69, 0xaa, 0xe0 )
591
592 typedef struct {
593 efi_guid_t guid;
594 u64 table;
595 } efi_config_table_64_t;
596
597 typedef struct {
598 efi_guid_t guid;
599 u32 table;
600 } efi_config_table_32_t;
601
602 typedef struct {
603 efi_guid_t guid;
604 unsigned long table;
605 } efi_config_table_t;
606
607 typedef struct {
608 efi_guid_t guid;
609 const char *name;
610 unsigned long *ptr;
611 } efi_config_table_type_t;
612
613 #define EFI_SYSTEM_TABLE_SIGNATURE ((u64)0x5453595320494249ULL)
614
615 #define EFI_2_30_SYSTEM_TABLE_REVISION ((2 << 16) | (30))
616 #define EFI_2_20_SYSTEM_TABLE_REVISION ((2 << 16) | (20))
617 #define EFI_2_10_SYSTEM_TABLE_REVISION ((2 << 16) | (10))
618 #define EFI_2_00_SYSTEM_TABLE_REVISION ((2 << 16) | (00))
619 #define EFI_1_10_SYSTEM_TABLE_REVISION ((1 << 16) | (10))
620 #define EFI_1_02_SYSTEM_TABLE_REVISION ((1 << 16) | (02))
621
622 typedef struct {
623 efi_table_hdr_t hdr;
624 u64 fw_vendor; /* physical addr of CHAR16 vendor string */
625 u32 fw_revision;
626 u32 __pad1;
627 u64 con_in_handle;
628 u64 con_in;
629 u64 con_out_handle;
630 u64 con_out;
631 u64 stderr_handle;
632 u64 stderr;
633 u64 runtime;
634 u64 boottime;
635 u32 nr_tables;
636 u32 __pad2;
637 u64 tables;
638 } efi_system_table_64_t;
639
640 typedef struct {
641 efi_table_hdr_t hdr;
642 u32 fw_vendor; /* physical addr of CHAR16 vendor string */
643 u32 fw_revision;
644 u32 con_in_handle;
645 u32 con_in;
646 u32 con_out_handle;
647 u32 con_out;
648 u32 stderr_handle;
649 u32 stderr;
650 u32 runtime;
651 u32 boottime;
652 u32 nr_tables;
653 u32 tables;
654 } efi_system_table_32_t;
655
656 typedef struct {
657 efi_table_hdr_t hdr;
658 unsigned long fw_vendor; /* physical addr of CHAR16 vendor string */
659 u32 fw_revision;
660 unsigned long con_in_handle;
661 unsigned long con_in;
662 unsigned long con_out_handle;
663 unsigned long con_out;
664 unsigned long stderr_handle;
665 unsigned long stderr;
666 efi_runtime_services_t *runtime;
667 efi_boot_services_t *boottime;
668 unsigned long nr_tables;
669 unsigned long tables;
670 } efi_system_table_t;
671
672 struct efi_memory_map {
673 void *phys_map;
674 void *map;
675 void *map_end;
676 int nr_map;
677 unsigned long desc_version;
678 unsigned long desc_size;
679 };
680
681 struct efi_fdt_params {
682 u64 system_table;
683 u64 mmap;
684 u32 mmap_size;
685 u32 desc_size;
686 u32 desc_ver;
687 };
688
689 typedef struct {
690 u32 revision;
691 u32 parent_handle;
692 u32 system_table;
693 u32 device_handle;
694 u32 file_path;
695 u32 reserved;
696 u32 load_options_size;
697 u32 load_options;
698 u32 image_base;
699 __aligned_u64 image_size;
700 unsigned int image_code_type;
701 unsigned int image_data_type;
702 unsigned long unload;
703 } efi_loaded_image_32_t;
704
705 typedef struct {
706 u32 revision;
707 u64 parent_handle;
708 u64 system_table;
709 u64 device_handle;
710 u64 file_path;
711 u64 reserved;
712 u32 load_options_size;
713 u64 load_options;
714 u64 image_base;
715 __aligned_u64 image_size;
716 unsigned int image_code_type;
717 unsigned int image_data_type;
718 unsigned long unload;
719 } efi_loaded_image_64_t;
720
721 typedef struct {
722 u32 revision;
723 void *parent_handle;
724 efi_system_table_t *system_table;
725 void *device_handle;
726 void *file_path;
727 void *reserved;
728 u32 load_options_size;
729 void *load_options;
730 void *image_base;
731 __aligned_u64 image_size;
732 unsigned int image_code_type;
733 unsigned int image_data_type;
734 unsigned long unload;
735 } efi_loaded_image_t;
736
737
738 typedef struct {
739 u64 size;
740 u64 file_size;
741 u64 phys_size;
742 efi_time_t create_time;
743 efi_time_t last_access_time;
744 efi_time_t modification_time;
745 __aligned_u64 attribute;
746 efi_char16_t filename[1];
747 } efi_file_info_t;
748
749 typedef struct {
750 u64 revision;
751 u32 open;
752 u32 close;
753 u32 delete;
754 u32 read;
755 u32 write;
756 u32 get_position;
757 u32 set_position;
758 u32 get_info;
759 u32 set_info;
760 u32 flush;
761 } efi_file_handle_32_t;
762
763 typedef struct {
764 u64 revision;
765 u64 open;
766 u64 close;
767 u64 delete;
768 u64 read;
769 u64 write;
770 u64 get_position;
771 u64 set_position;
772 u64 get_info;
773 u64 set_info;
774 u64 flush;
775 } efi_file_handle_64_t;
776
777 typedef struct _efi_file_handle {
778 u64 revision;
779 efi_status_t (*open)(struct _efi_file_handle *,
780 struct _efi_file_handle **,
781 efi_char16_t *, u64, u64);
782 efi_status_t (*close)(struct _efi_file_handle *);
783 void *delete;
784 efi_status_t (*read)(struct _efi_file_handle *, unsigned long *,
785 void *);
786 void *write;
787 void *get_position;
788 void *set_position;
789 efi_status_t (*get_info)(struct _efi_file_handle *, efi_guid_t *,
790 unsigned long *, void *);
791 void *set_info;
792 void *flush;
793 } efi_file_handle_t;
794
795 typedef struct _efi_file_io_interface {
796 u64 revision;
797 int (*open_volume)(struct _efi_file_io_interface *,
798 efi_file_handle_t **);
799 } efi_file_io_interface_t;
800
801 #define EFI_FILE_MODE_READ 0x0000000000000001
802 #define EFI_FILE_MODE_WRITE 0x0000000000000002
803 #define EFI_FILE_MODE_CREATE 0x8000000000000000
804
805 #define EFI_INVALID_TABLE_ADDR (~0UL)
806
807 /*
808 * All runtime access to EFI goes through this structure:
809 */
810 extern struct efi {
811 efi_system_table_t *systab; /* EFI system table */
812 unsigned int runtime_version; /* Runtime services version */
813 unsigned long mps; /* MPS table */
814 unsigned long acpi; /* ACPI table (IA64 ext 0.71) */
815 unsigned long acpi20; /* ACPI table (ACPI 2.0) */
816 unsigned long smbios; /* SMBIOS table (32 bit entry point) */
817 unsigned long smbios3; /* SMBIOS table (64 bit entry point) */
818 unsigned long sal_systab; /* SAL system table */
819 unsigned long boot_info; /* boot info table */
820 unsigned long hcdp; /* HCDP table */
821 unsigned long uga; /* UGA table */
822 unsigned long uv_systab; /* UV system table */
823 unsigned long fw_vendor; /* fw_vendor */
824 unsigned long runtime; /* runtime table */
825 unsigned long config_table; /* config tables */
826 efi_get_time_t *get_time;
827 efi_set_time_t *set_time;
828 efi_get_wakeup_time_t *get_wakeup_time;
829 efi_set_wakeup_time_t *set_wakeup_time;
830 efi_get_variable_t *get_variable;
831 efi_get_next_variable_t *get_next_variable;
832 efi_set_variable_t *set_variable;
833 efi_set_variable_nonblocking_t *set_variable_nonblocking;
834 efi_query_variable_info_t *query_variable_info;
835 efi_update_capsule_t *update_capsule;
836 efi_query_capsule_caps_t *query_capsule_caps;
837 efi_get_next_high_mono_count_t *get_next_high_mono_count;
838 efi_reset_system_t *reset_system;
839 efi_set_virtual_address_map_t *set_virtual_address_map;
840 struct efi_memory_map *memmap;
841 unsigned long flags;
842 } efi;
843
844 static inline int
efi_guidcmp(efi_guid_t left,efi_guid_t right)845 efi_guidcmp (efi_guid_t left, efi_guid_t right)
846 {
847 return memcmp(&left, &right, sizeof (efi_guid_t));
848 }
849
850 static inline char *
efi_guid_unparse(efi_guid_t * guid,char * out)851 efi_guid_unparse(efi_guid_t *guid, char *out)
852 {
853 sprintf(out, "%pUl", guid->b);
854 return out;
855 }
856
857 extern void efi_init (void);
858 extern void *efi_get_pal_addr (void);
859 extern void efi_map_pal_code (void);
860 extern void efi_memmap_walk (efi_freemem_callback_t callback, void *arg);
861 extern void efi_gettimeofday (struct timespec *ts);
862 extern void efi_enter_virtual_mode (void); /* switch EFI to virtual mode, if possible */
863 #ifdef CONFIG_X86
864 extern void efi_late_init(void);
865 extern void efi_free_boot_services(void);
866 extern efi_status_t efi_query_variable_store(u32 attributes, unsigned long size);
867 #else
efi_late_init(void)868 static inline void efi_late_init(void) {}
efi_free_boot_services(void)869 static inline void efi_free_boot_services(void) {}
870
efi_query_variable_store(u32 attributes,unsigned long size)871 static inline efi_status_t efi_query_variable_store(u32 attributes, unsigned long size)
872 {
873 return EFI_SUCCESS;
874 }
875 #endif
876 extern void __iomem *efi_lookup_mapped_addr(u64 phys_addr);
877 extern int efi_config_init(efi_config_table_type_t *arch_tables);
878 extern int efi_config_parse_tables(void *config_tables, int count, int sz,
879 efi_config_table_type_t *arch_tables);
880 extern u64 efi_get_iobase (void);
881 extern u32 efi_mem_type (unsigned long phys_addr);
882 extern u64 efi_mem_attributes (unsigned long phys_addr);
883 extern u64 efi_mem_attribute (unsigned long phys_addr, unsigned long size);
884 extern int __init efi_uart_console_only (void);
885 extern void efi_initialize_iomem_resources(struct resource *code_resource,
886 struct resource *data_resource, struct resource *bss_resource);
887 extern void efi_get_time(struct timespec *now);
888 extern void efi_reserve_boot_services(void);
889 extern int efi_get_fdt_params(struct efi_fdt_params *params, int verbose);
890 extern struct efi_memory_map memmap;
891
892 extern int efi_reboot_quirk_mode;
893 extern bool efi_poweroff_required(void);
894
895 /* Iterate through an efi_memory_map */
896 #define for_each_efi_memory_desc(m, md) \
897 for ((md) = (m)->map; \
898 (md) <= (efi_memory_desc_t *)((m)->map_end - (m)->desc_size); \
899 (md) = (void *)(md) + (m)->desc_size)
900
901 /*
902 * Format an EFI memory descriptor's type and attributes to a user-provided
903 * character buffer, as per snprintf(), and return the buffer.
904 */
905 char * __init efi_md_typeattr_format(char *buf, size_t size,
906 const efi_memory_desc_t *md);
907
908 /**
909 * efi_range_is_wc - check the WC bit on an address range
910 * @start: starting kvirt address
911 * @len: length of range
912 *
913 * Consult the EFI memory map and make sure it's ok to set this range WC.
914 * Returns true or false.
915 */
efi_range_is_wc(unsigned long start,unsigned long len)916 static inline int efi_range_is_wc(unsigned long start, unsigned long len)
917 {
918 unsigned long i;
919
920 for (i = 0; i < len; i += (1UL << EFI_PAGE_SHIFT)) {
921 unsigned long paddr = __pa(start + i);
922 if (!(efi_mem_attributes(paddr) & EFI_MEMORY_WC))
923 return 0;
924 }
925 /* The range checked out */
926 return 1;
927 }
928
929 #ifdef CONFIG_EFI_PCDP
930 extern int __init efi_setup_pcdp_console(char *);
931 #endif
932
933 /*
934 * We play games with efi_enabled so that the compiler will, if
935 * possible, remove EFI-related code altogether.
936 */
937 #define EFI_BOOT 0 /* Were we booted from EFI? */
938 #define EFI_SYSTEM_TABLES 1 /* Can we use EFI system tables? */
939 #define EFI_CONFIG_TABLES 2 /* Can we use EFI config tables? */
940 #define EFI_RUNTIME_SERVICES 3 /* Can we use runtime services? */
941 #define EFI_MEMMAP 4 /* Can we use EFI memory map? */
942 #define EFI_64BIT 5 /* Is the firmware 64-bit? */
943 #define EFI_PARAVIRT 6 /* Access is via a paravirt interface */
944 #define EFI_ARCH_1 7 /* First arch-specific bit */
945
946 #ifdef CONFIG_EFI
947 /*
948 * Test whether the above EFI_* bits are enabled.
949 */
efi_enabled(int feature)950 static inline bool efi_enabled(int feature)
951 {
952 return test_bit(feature, &efi.flags) != 0;
953 }
954 extern void efi_reboot(enum reboot_mode reboot_mode, const char *__unused);
955 #else
efi_enabled(int feature)956 static inline bool efi_enabled(int feature)
957 {
958 return false;
959 }
960 static inline void
efi_reboot(enum reboot_mode reboot_mode,const char * __unused)961 efi_reboot(enum reboot_mode reboot_mode, const char *__unused) {}
962 #endif
963
964 /*
965 * Variable Attributes
966 */
967 #define EFI_VARIABLE_NON_VOLATILE 0x0000000000000001
968 #define EFI_VARIABLE_BOOTSERVICE_ACCESS 0x0000000000000002
969 #define EFI_VARIABLE_RUNTIME_ACCESS 0x0000000000000004
970 #define EFI_VARIABLE_HARDWARE_ERROR_RECORD 0x0000000000000008
971 #define EFI_VARIABLE_AUTHENTICATED_WRITE_ACCESS 0x0000000000000010
972 #define EFI_VARIABLE_TIME_BASED_AUTHENTICATED_WRITE_ACCESS 0x0000000000000020
973 #define EFI_VARIABLE_APPEND_WRITE 0x0000000000000040
974
975 #define EFI_VARIABLE_MASK (EFI_VARIABLE_NON_VOLATILE | \
976 EFI_VARIABLE_BOOTSERVICE_ACCESS | \
977 EFI_VARIABLE_RUNTIME_ACCESS | \
978 EFI_VARIABLE_HARDWARE_ERROR_RECORD | \
979 EFI_VARIABLE_AUTHENTICATED_WRITE_ACCESS | \
980 EFI_VARIABLE_TIME_BASED_AUTHENTICATED_WRITE_ACCESS | \
981 EFI_VARIABLE_APPEND_WRITE)
982 /*
983 * Length of a GUID string (strlen("aaaaaaaa-bbbb-cccc-dddd-eeeeeeeeeeee"))
984 * not including trailing NUL
985 */
986 #define EFI_VARIABLE_GUID_LEN 36
987
988 /*
989 * The type of search to perform when calling boottime->locate_handle
990 */
991 #define EFI_LOCATE_ALL_HANDLES 0
992 #define EFI_LOCATE_BY_REGISTER_NOTIFY 1
993 #define EFI_LOCATE_BY_PROTOCOL 2
994
995 /*
996 * EFI Device Path information
997 */
998 #define EFI_DEV_HW 0x01
999 #define EFI_DEV_PCI 1
1000 #define EFI_DEV_PCCARD 2
1001 #define EFI_DEV_MEM_MAPPED 3
1002 #define EFI_DEV_VENDOR 4
1003 #define EFI_DEV_CONTROLLER 5
1004 #define EFI_DEV_ACPI 0x02
1005 #define EFI_DEV_BASIC_ACPI 1
1006 #define EFI_DEV_EXPANDED_ACPI 2
1007 #define EFI_DEV_MSG 0x03
1008 #define EFI_DEV_MSG_ATAPI 1
1009 #define EFI_DEV_MSG_SCSI 2
1010 #define EFI_DEV_MSG_FC 3
1011 #define EFI_DEV_MSG_1394 4
1012 #define EFI_DEV_MSG_USB 5
1013 #define EFI_DEV_MSG_USB_CLASS 15
1014 #define EFI_DEV_MSG_I20 6
1015 #define EFI_DEV_MSG_MAC 11
1016 #define EFI_DEV_MSG_IPV4 12
1017 #define EFI_DEV_MSG_IPV6 13
1018 #define EFI_DEV_MSG_INFINIBAND 9
1019 #define EFI_DEV_MSG_UART 14
1020 #define EFI_DEV_MSG_VENDOR 10
1021 #define EFI_DEV_MEDIA 0x04
1022 #define EFI_DEV_MEDIA_HARD_DRIVE 1
1023 #define EFI_DEV_MEDIA_CDROM 2
1024 #define EFI_DEV_MEDIA_VENDOR 3
1025 #define EFI_DEV_MEDIA_FILE 4
1026 #define EFI_DEV_MEDIA_PROTOCOL 5
1027 #define EFI_DEV_BIOS_BOOT 0x05
1028 #define EFI_DEV_END_PATH 0x7F
1029 #define EFI_DEV_END_PATH2 0xFF
1030 #define EFI_DEV_END_INSTANCE 0x01
1031 #define EFI_DEV_END_ENTIRE 0xFF
1032
1033 struct efi_generic_dev_path {
1034 u8 type;
1035 u8 sub_type;
1036 u16 length;
1037 } __attribute ((packed));
1038
memrange_efi_to_native(u64 * addr,u64 * npages)1039 static inline void memrange_efi_to_native(u64 *addr, u64 *npages)
1040 {
1041 *npages = PFN_UP(*addr + (*npages<<EFI_PAGE_SHIFT)) - PFN_DOWN(*addr);
1042 *addr &= PAGE_MASK;
1043 }
1044
1045 /*
1046 * EFI Variable support.
1047 *
1048 * Different firmware drivers can expose their EFI-like variables using
1049 * the following.
1050 */
1051
1052 struct efivar_operations {
1053 efi_get_variable_t *get_variable;
1054 efi_get_next_variable_t *get_next_variable;
1055 efi_set_variable_t *set_variable;
1056 efi_set_variable_nonblocking_t *set_variable_nonblocking;
1057 efi_query_variable_store_t *query_variable_store;
1058 };
1059
1060 struct efivars {
1061 /*
1062 * ->lock protects two things:
1063 * 1) efivarfs_list and efivars_sysfs_list
1064 * 2) ->ops calls
1065 */
1066 spinlock_t lock;
1067 struct kset *kset;
1068 struct kobject *kobject;
1069 const struct efivar_operations *ops;
1070 };
1071
1072 /*
1073 * The maximum size of VariableName + Data = 1024
1074 * Therefore, it's reasonable to save that much
1075 * space in each part of the structure,
1076 * and we use a page for reading/writing.
1077 */
1078
1079 #define EFI_VAR_NAME_LEN 1024
1080
1081 struct efi_variable {
1082 efi_char16_t VariableName[EFI_VAR_NAME_LEN/sizeof(efi_char16_t)];
1083 efi_guid_t VendorGuid;
1084 unsigned long DataSize;
1085 __u8 Data[1024];
1086 efi_status_t Status;
1087 __u32 Attributes;
1088 } __attribute__((packed));
1089
1090 struct efivar_entry {
1091 struct efi_variable var;
1092 struct list_head list;
1093 struct kobject kobj;
1094 bool scanning;
1095 bool deleting;
1096 };
1097
1098 struct efi_simple_text_output_protocol_32 {
1099 u32 reset;
1100 u32 output_string;
1101 u32 test_string;
1102 };
1103
1104 struct efi_simple_text_output_protocol_64 {
1105 u64 reset;
1106 u64 output_string;
1107 u64 test_string;
1108 };
1109
1110 struct efi_simple_text_output_protocol {
1111 void *reset;
1112 efi_status_t (*output_string)(void *, void *);
1113 void *test_string;
1114 };
1115
1116 extern struct list_head efivar_sysfs_list;
1117
1118 static inline void
efivar_unregister(struct efivar_entry * var)1119 efivar_unregister(struct efivar_entry *var)
1120 {
1121 kobject_put(&var->kobj);
1122 }
1123
1124 int efivars_register(struct efivars *efivars,
1125 const struct efivar_operations *ops,
1126 struct kobject *kobject);
1127 int efivars_unregister(struct efivars *efivars);
1128 struct kobject *efivars_kobject(void);
1129
1130 int efivar_init(int (*func)(efi_char16_t *, efi_guid_t, unsigned long, void *),
1131 void *data, bool atomic, bool duplicates,
1132 struct list_head *head);
1133
1134 void efivar_entry_add(struct efivar_entry *entry, struct list_head *head);
1135 void efivar_entry_remove(struct efivar_entry *entry);
1136
1137 int __efivar_entry_delete(struct efivar_entry *entry);
1138 int efivar_entry_delete(struct efivar_entry *entry);
1139
1140 int efivar_entry_size(struct efivar_entry *entry, unsigned long *size);
1141 int __efivar_entry_get(struct efivar_entry *entry, u32 *attributes,
1142 unsigned long *size, void *data);
1143 int efivar_entry_get(struct efivar_entry *entry, u32 *attributes,
1144 unsigned long *size, void *data);
1145 int efivar_entry_set(struct efivar_entry *entry, u32 attributes,
1146 unsigned long size, void *data, struct list_head *head);
1147 int efivar_entry_set_get_size(struct efivar_entry *entry, u32 attributes,
1148 unsigned long *size, void *data, bool *set);
1149 int efivar_entry_set_safe(efi_char16_t *name, efi_guid_t vendor, u32 attributes,
1150 bool block, unsigned long size, void *data);
1151
1152 void efivar_entry_iter_begin(void);
1153 void efivar_entry_iter_end(void);
1154
1155 int __efivar_entry_iter(int (*func)(struct efivar_entry *, void *),
1156 struct list_head *head, void *data,
1157 struct efivar_entry **prev);
1158 int efivar_entry_iter(int (*func)(struct efivar_entry *, void *),
1159 struct list_head *head, void *data);
1160
1161 struct efivar_entry *efivar_entry_find(efi_char16_t *name, efi_guid_t guid,
1162 struct list_head *head, bool remove);
1163
1164 bool efivar_validate(efi_guid_t vendor, efi_char16_t *var_name, u8 *data,
1165 unsigned long data_size);
1166 bool efivar_variable_is_removable(efi_guid_t vendor, const char *name,
1167 size_t len);
1168
1169 extern struct work_struct efivar_work;
1170 void efivar_run_worker(void);
1171
1172 #if defined(CONFIG_EFI_VARS) || defined(CONFIG_EFI_VARS_MODULE)
1173 int efivars_sysfs_init(void);
1174
1175 #define EFIVARS_DATA_SIZE_MAX 1024
1176
1177 #endif /* CONFIG_EFI_VARS */
1178
1179 #ifdef CONFIG_EFI_RUNTIME_MAP
1180 int efi_runtime_map_init(struct kobject *);
1181 void efi_runtime_map_setup(void *, int, u32);
1182 int efi_get_runtime_map_size(void);
1183 int efi_get_runtime_map_desc_size(void);
1184 int efi_runtime_map_copy(void *buf, size_t bufsz);
1185 #else
efi_runtime_map_init(struct kobject * kobj)1186 static inline int efi_runtime_map_init(struct kobject *kobj)
1187 {
1188 return 0;
1189 }
1190
1191 static inline void
efi_runtime_map_setup(void * map,int nr_entries,u32 desc_size)1192 efi_runtime_map_setup(void *map, int nr_entries, u32 desc_size) {}
1193
efi_get_runtime_map_size(void)1194 static inline int efi_get_runtime_map_size(void)
1195 {
1196 return 0;
1197 }
1198
efi_get_runtime_map_desc_size(void)1199 static inline int efi_get_runtime_map_desc_size(void)
1200 {
1201 return 0;
1202 }
1203
efi_runtime_map_copy(void * buf,size_t bufsz)1204 static inline int efi_runtime_map_copy(void *buf, size_t bufsz)
1205 {
1206 return 0;
1207 }
1208
1209 #endif
1210
1211 /* prototypes shared between arch specific and generic stub code */
1212
1213 #define pr_efi(sys_table, msg) efi_printk(sys_table, "EFI stub: "msg)
1214 #define pr_efi_err(sys_table, msg) efi_printk(sys_table, "EFI stub: ERROR: "msg)
1215
1216 void efi_printk(efi_system_table_t *sys_table_arg, char *str);
1217
1218 void efi_free(efi_system_table_t *sys_table_arg, unsigned long size,
1219 unsigned long addr);
1220
1221 char *efi_convert_cmdline(efi_system_table_t *sys_table_arg,
1222 efi_loaded_image_t *image, int *cmd_line_len);
1223
1224 efi_status_t efi_get_memory_map(efi_system_table_t *sys_table_arg,
1225 efi_memory_desc_t **map,
1226 unsigned long *map_size,
1227 unsigned long *desc_size,
1228 u32 *desc_ver,
1229 unsigned long *key_ptr);
1230
1231 efi_status_t efi_low_alloc(efi_system_table_t *sys_table_arg,
1232 unsigned long size, unsigned long align,
1233 unsigned long *addr);
1234
1235 efi_status_t efi_high_alloc(efi_system_table_t *sys_table_arg,
1236 unsigned long size, unsigned long align,
1237 unsigned long *addr, unsigned long max);
1238
1239 efi_status_t efi_relocate_kernel(efi_system_table_t *sys_table_arg,
1240 unsigned long *image_addr,
1241 unsigned long image_size,
1242 unsigned long alloc_size,
1243 unsigned long preferred_addr,
1244 unsigned long alignment);
1245
1246 efi_status_t handle_cmdline_files(efi_system_table_t *sys_table_arg,
1247 efi_loaded_image_t *image,
1248 char *cmd_line, char *option_string,
1249 unsigned long max_addr,
1250 unsigned long *load_addr,
1251 unsigned long *load_size);
1252
1253 efi_status_t efi_parse_options(char *cmdline);
1254
1255 bool efi_runtime_disabled(void);
1256 #endif /* _LINUX_EFI_H */
1257