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1 | #ifndef _LINUX_EFI_H | |
2 | #define _LINUX_EFI_H | |
3 | ||
4 | /* | |
5 | * Extensible Firmware Interface | |
6 | * Based on 'Extensible Firmware Interface Specification' version 0.9, April 30, 1999 | |
7 | * | |
8 | * Copyright (C) 1999 VA Linux Systems | |
9 | * Copyright (C) 1999 Walt Drummond <drummond@valinux.com> | |
10 | * Copyright (C) 1999, 2002-2003 Hewlett-Packard Co. | |
11 | * David Mosberger-Tang <davidm@hpl.hp.com> | |
12 | * Stephane Eranian <eranian@hpl.hp.com> | |
13 | */ | |
14 | #include <linux/init.h> | |
15 | #include <linux/string.h> | |
16 | #include <linux/time.h> | |
17 | #include <linux/types.h> | |
18 | #include <linux/proc_fs.h> | |
19 | #include <linux/rtc.h> | |
20 | #include <linux/ioport.h> | |
21 | #include <linux/pfn.h> | |
22 | #include <linux/pstore.h> | |
23 | #include <linux/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_PERSISTENT_MEMORY 14 | |
89 | #define EFI_MAX_MEMORY_TYPE 15 | |
90 | ||
91 | /* Attribute values: */ | |
92 | #define EFI_MEMORY_UC ((u64)0x0000000000000001ULL) /* uncached */ | |
93 | #define EFI_MEMORY_WC ((u64)0x0000000000000002ULL) /* write-coalescing */ | |
94 | #define EFI_MEMORY_WT ((u64)0x0000000000000004ULL) /* write-through */ | |
95 | #define EFI_MEMORY_WB ((u64)0x0000000000000008ULL) /* write-back */ | |
96 | #define EFI_MEMORY_UCE ((u64)0x0000000000000010ULL) /* uncached, exported */ | |
97 | #define EFI_MEMORY_WP ((u64)0x0000000000001000ULL) /* write-protect */ | |
98 | #define EFI_MEMORY_RP ((u64)0x0000000000002000ULL) /* read-protect */ | |
99 | #define EFI_MEMORY_XP ((u64)0x0000000000004000ULL) /* execute-protect */ | |
100 | #define EFI_MEMORY_MORE_RELIABLE \ | |
101 | ((u64)0x0000000000010000ULL) /* higher reliability */ | |
102 | #define EFI_MEMORY_RO ((u64)0x0000000000020000ULL) /* read-only */ | |
103 | #define EFI_MEMORY_RUNTIME ((u64)0x8000000000000000ULL) /* range requires runtime mapping */ | |
104 | #define EFI_MEMORY_DESCRIPTOR_VERSION 1 | |
105 | ||
106 | #define EFI_PAGE_SHIFT 12 | |
107 | #define EFI_PAGE_SIZE (1UL << EFI_PAGE_SHIFT) | |
108 | ||
109 | typedef 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 | ||
118 | typedef struct { | |
119 | efi_guid_t guid; | |
120 | u32 headersize; | |
121 | u32 flags; | |
122 | u32 imagesize; | |
123 | } efi_capsule_header_t; | |
124 | ||
125 | /* | |
126 | * Allocation types for calls to boottime->allocate_pages. | |
127 | */ | |
128 | #define EFI_ALLOCATE_ANY_PAGES 0 | |
129 | #define EFI_ALLOCATE_MAX_ADDRESS 1 | |
130 | #define EFI_ALLOCATE_ADDRESS 2 | |
131 | #define EFI_MAX_ALLOCATE_TYPE 3 | |
132 | ||
133 | typedef int (*efi_freemem_callback_t) (u64 start, u64 end, void *arg); | |
134 | ||
135 | /* | |
136 | * Types and defines for Time Services | |
137 | */ | |
138 | #define EFI_TIME_ADJUST_DAYLIGHT 0x1 | |
139 | #define EFI_TIME_IN_DAYLIGHT 0x2 | |
140 | #define EFI_UNSPECIFIED_TIMEZONE 0x07ff | |
141 | ||
142 | typedef struct { | |
143 | u16 year; | |
144 | u8 month; | |
145 | u8 day; | |
146 | u8 hour; | |
147 | u8 minute; | |
148 | u8 second; | |
149 | u8 pad1; | |
150 | u32 nanosecond; | |
151 | s16 timezone; | |
152 | u8 daylight; | |
153 | u8 pad2; | |
154 | } efi_time_t; | |
155 | ||
156 | typedef struct { | |
157 | u32 resolution; | |
158 | u32 accuracy; | |
159 | u8 sets_to_zero; | |
160 | } efi_time_cap_t; | |
161 | ||
162 | typedef struct { | |
163 | efi_table_hdr_t hdr; | |
164 | u32 raise_tpl; | |
165 | u32 restore_tpl; | |
166 | u32 allocate_pages; | |
167 | u32 free_pages; | |
168 | u32 get_memory_map; | |
169 | u32 allocate_pool; | |
170 | u32 free_pool; | |
171 | u32 create_event; | |
172 | u32 set_timer; | |
173 | u32 wait_for_event; | |
174 | u32 signal_event; | |
175 | u32 close_event; | |
176 | u32 check_event; | |
177 | u32 install_protocol_interface; | |
178 | u32 reinstall_protocol_interface; | |
179 | u32 uninstall_protocol_interface; | |
180 | u32 handle_protocol; | |
181 | u32 __reserved; | |
182 | u32 register_protocol_notify; | |
183 | u32 locate_handle; | |
184 | u32 locate_device_path; | |
185 | u32 install_configuration_table; | |
186 | u32 load_image; | |
187 | u32 start_image; | |
188 | u32 exit; | |
189 | u32 unload_image; | |
190 | u32 exit_boot_services; | |
191 | u32 get_next_monotonic_count; | |
192 | u32 stall; | |
193 | u32 set_watchdog_timer; | |
194 | u32 connect_controller; | |
195 | u32 disconnect_controller; | |
196 | u32 open_protocol; | |
197 | u32 close_protocol; | |
198 | u32 open_protocol_information; | |
199 | u32 protocols_per_handle; | |
200 | u32 locate_handle_buffer; | |
201 | u32 locate_protocol; | |
202 | u32 install_multiple_protocol_interfaces; | |
203 | u32 uninstall_multiple_protocol_interfaces; | |
204 | u32 calculate_crc32; | |
205 | u32 copy_mem; | |
206 | u32 set_mem; | |
207 | u32 create_event_ex; | |
208 | } __packed efi_boot_services_32_t; | |
209 | ||
210 | typedef struct { | |
211 | efi_table_hdr_t hdr; | |
212 | u64 raise_tpl; | |
213 | u64 restore_tpl; | |
214 | u64 allocate_pages; | |
215 | u64 free_pages; | |
216 | u64 get_memory_map; | |
217 | u64 allocate_pool; | |
218 | u64 free_pool; | |
219 | u64 create_event; | |
220 | u64 set_timer; | |
221 | u64 wait_for_event; | |
222 | u64 signal_event; | |
223 | u64 close_event; | |
224 | u64 check_event; | |
225 | u64 install_protocol_interface; | |
226 | u64 reinstall_protocol_interface; | |
227 | u64 uninstall_protocol_interface; | |
228 | u64 handle_protocol; | |
229 | u64 __reserved; | |
230 | u64 register_protocol_notify; | |
231 | u64 locate_handle; | |
232 | u64 locate_device_path; | |
233 | u64 install_configuration_table; | |
234 | u64 load_image; | |
235 | u64 start_image; | |
236 | u64 exit; | |
237 | u64 unload_image; | |
238 | u64 exit_boot_services; | |
239 | u64 get_next_monotonic_count; | |
240 | u64 stall; | |
241 | u64 set_watchdog_timer; | |
242 | u64 connect_controller; | |
243 | u64 disconnect_controller; | |
244 | u64 open_protocol; | |
245 | u64 close_protocol; | |
246 | u64 open_protocol_information; | |
247 | u64 protocols_per_handle; | |
248 | u64 locate_handle_buffer; | |
249 | u64 locate_protocol; | |
250 | u64 install_multiple_protocol_interfaces; | |
251 | u64 uninstall_multiple_protocol_interfaces; | |
252 | u64 calculate_crc32; | |
253 | u64 copy_mem; | |
254 | u64 set_mem; | |
255 | u64 create_event_ex; | |
256 | } __packed efi_boot_services_64_t; | |
257 | ||
258 | /* | |
259 | * EFI Boot Services table | |
260 | */ | |
261 | typedef struct { | |
262 | efi_table_hdr_t hdr; | |
263 | void *raise_tpl; | |
264 | void *restore_tpl; | |
265 | efi_status_t (*allocate_pages)(int, int, unsigned long, | |
266 | efi_physical_addr_t *); | |
267 | efi_status_t (*free_pages)(efi_physical_addr_t, unsigned long); | |
268 | efi_status_t (*get_memory_map)(unsigned long *, void *, unsigned long *, | |
269 | unsigned long *, u32 *); | |
270 | efi_status_t (*allocate_pool)(int, unsigned long, void **); | |
271 | efi_status_t (*free_pool)(void *); | |
272 | void *create_event; | |
273 | void *set_timer; | |
274 | void *wait_for_event; | |
275 | void *signal_event; | |
276 | void *close_event; | |
277 | void *check_event; | |
278 | void *install_protocol_interface; | |
279 | void *reinstall_protocol_interface; | |
280 | void *uninstall_protocol_interface; | |
281 | efi_status_t (*handle_protocol)(efi_handle_t, efi_guid_t *, void **); | |
282 | void *__reserved; | |
283 | void *register_protocol_notify; | |
284 | void *locate_handle; | |
285 | void *locate_device_path; | |
286 | void *install_configuration_table; | |
287 | void *load_image; | |
288 | void *start_image; | |
289 | void *exit; | |
290 | void *unload_image; | |
291 | efi_status_t (*exit_boot_services)(efi_handle_t, unsigned long); | |
292 | void *get_next_monotonic_count; | |
293 | void *stall; | |
294 | void *set_watchdog_timer; | |
295 | void *connect_controller; | |
296 | void *disconnect_controller; | |
297 | void *open_protocol; | |
298 | void *close_protocol; | |
299 | void *open_protocol_information; | |
300 | void *protocols_per_handle; | |
301 | void *locate_handle_buffer; | |
302 | void *locate_protocol; | |
303 | void *install_multiple_protocol_interfaces; | |
304 | void *uninstall_multiple_protocol_interfaces; | |
305 | void *calculate_crc32; | |
306 | void *copy_mem; | |
307 | void *set_mem; | |
308 | void *create_event_ex; | |
309 | } efi_boot_services_t; | |
310 | ||
311 | typedef enum { | |
312 | EfiPciIoWidthUint8, | |
313 | EfiPciIoWidthUint16, | |
314 | EfiPciIoWidthUint32, | |
315 | EfiPciIoWidthUint64, | |
316 | EfiPciIoWidthFifoUint8, | |
317 | EfiPciIoWidthFifoUint16, | |
318 | EfiPciIoWidthFifoUint32, | |
319 | EfiPciIoWidthFifoUint64, | |
320 | EfiPciIoWidthFillUint8, | |
321 | EfiPciIoWidthFillUint16, | |
322 | EfiPciIoWidthFillUint32, | |
323 | EfiPciIoWidthFillUint64, | |
324 | EfiPciIoWidthMaximum | |
325 | } EFI_PCI_IO_PROTOCOL_WIDTH; | |
326 | ||
327 | typedef enum { | |
328 | EfiPciIoAttributeOperationGet, | |
329 | EfiPciIoAttributeOperationSet, | |
330 | EfiPciIoAttributeOperationEnable, | |
331 | EfiPciIoAttributeOperationDisable, | |
332 | EfiPciIoAttributeOperationSupported, | |
333 | EfiPciIoAttributeOperationMaximum | |
334 | } EFI_PCI_IO_PROTOCOL_ATTRIBUTE_OPERATION; | |
335 | ||
336 | typedef struct { | |
337 | u32 read; | |
338 | u32 write; | |
339 | } efi_pci_io_protocol_access_32_t; | |
340 | ||
341 | typedef struct { | |
342 | u64 read; | |
343 | u64 write; | |
344 | } efi_pci_io_protocol_access_64_t; | |
345 | ||
346 | typedef struct { | |
347 | void *read; | |
348 | void *write; | |
349 | } efi_pci_io_protocol_access_t; | |
350 | ||
351 | typedef struct { | |
352 | u32 poll_mem; | |
353 | u32 poll_io; | |
354 | efi_pci_io_protocol_access_32_t mem; | |
355 | efi_pci_io_protocol_access_32_t io; | |
356 | efi_pci_io_protocol_access_32_t pci; | |
357 | u32 copy_mem; | |
358 | u32 map; | |
359 | u32 unmap; | |
360 | u32 allocate_buffer; | |
361 | u32 free_buffer; | |
362 | u32 flush; | |
363 | u32 get_location; | |
364 | u32 attributes; | |
365 | u32 get_bar_attributes; | |
366 | u32 set_bar_attributes; | |
367 | uint64_t romsize; | |
368 | void *romimage; | |
369 | } efi_pci_io_protocol_32; | |
370 | ||
371 | typedef struct { | |
372 | u64 poll_mem; | |
373 | u64 poll_io; | |
374 | efi_pci_io_protocol_access_64_t mem; | |
375 | efi_pci_io_protocol_access_64_t io; | |
376 | efi_pci_io_protocol_access_64_t pci; | |
377 | u64 copy_mem; | |
378 | u64 map; | |
379 | u64 unmap; | |
380 | u64 allocate_buffer; | |
381 | u64 free_buffer; | |
382 | u64 flush; | |
383 | u64 get_location; | |
384 | u64 attributes; | |
385 | u64 get_bar_attributes; | |
386 | u64 set_bar_attributes; | |
387 | uint64_t romsize; | |
388 | void *romimage; | |
389 | } efi_pci_io_protocol_64; | |
390 | ||
391 | typedef struct { | |
392 | void *poll_mem; | |
393 | void *poll_io; | |
394 | efi_pci_io_protocol_access_t mem; | |
395 | efi_pci_io_protocol_access_t io; | |
396 | efi_pci_io_protocol_access_t pci; | |
397 | void *copy_mem; | |
398 | void *map; | |
399 | void *unmap; | |
400 | void *allocate_buffer; | |
401 | void *free_buffer; | |
402 | void *flush; | |
403 | void *get_location; | |
404 | void *attributes; | |
405 | void *get_bar_attributes; | |
406 | void *set_bar_attributes; | |
407 | uint64_t romsize; | |
408 | void *romimage; | |
409 | } efi_pci_io_protocol; | |
410 | ||
411 | #define EFI_PCI_IO_ATTRIBUTE_ISA_MOTHERBOARD_IO 0x0001 | |
412 | #define EFI_PCI_IO_ATTRIBUTE_ISA_IO 0x0002 | |
413 | #define EFI_PCI_IO_ATTRIBUTE_VGA_PALETTE_IO 0x0004 | |
414 | #define EFI_PCI_IO_ATTRIBUTE_VGA_MEMORY 0x0008 | |
415 | #define EFI_PCI_IO_ATTRIBUTE_VGA_IO 0x0010 | |
416 | #define EFI_PCI_IO_ATTRIBUTE_IDE_PRIMARY_IO 0x0020 | |
417 | #define EFI_PCI_IO_ATTRIBUTE_IDE_SECONDARY_IO 0x0040 | |
418 | #define EFI_PCI_IO_ATTRIBUTE_MEMORY_WRITE_COMBINE 0x0080 | |
419 | #define EFI_PCI_IO_ATTRIBUTE_IO 0x0100 | |
420 | #define EFI_PCI_IO_ATTRIBUTE_MEMORY 0x0200 | |
421 | #define EFI_PCI_IO_ATTRIBUTE_BUS_MASTER 0x0400 | |
422 | #define EFI_PCI_IO_ATTRIBUTE_MEMORY_CACHED 0x0800 | |
423 | #define EFI_PCI_IO_ATTRIBUTE_MEMORY_DISABLE 0x1000 | |
424 | #define EFI_PCI_IO_ATTRIBUTE_EMBEDDED_DEVICE 0x2000 | |
425 | #define EFI_PCI_IO_ATTRIBUTE_EMBEDDED_ROM 0x4000 | |
426 | #define EFI_PCI_IO_ATTRIBUTE_DUAL_ADDRESS_CYCLE 0x8000 | |
427 | #define EFI_PCI_IO_ATTRIBUTE_ISA_IO_16 0x10000 | |
428 | #define EFI_PCI_IO_ATTRIBUTE_VGA_PALETTE_IO_16 0x20000 | |
429 | #define EFI_PCI_IO_ATTRIBUTE_VGA_IO_16 0x40000 | |
430 | ||
431 | /* | |
432 | * Types and defines for EFI ResetSystem | |
433 | */ | |
434 | #define EFI_RESET_COLD 0 | |
435 | #define EFI_RESET_WARM 1 | |
436 | #define EFI_RESET_SHUTDOWN 2 | |
437 | ||
438 | /* | |
439 | * EFI Runtime Services table | |
440 | */ | |
441 | #define EFI_RUNTIME_SERVICES_SIGNATURE ((u64)0x5652453544e5552ULL) | |
442 | #define EFI_RUNTIME_SERVICES_REVISION 0x00010000 | |
443 | ||
444 | typedef struct { | |
445 | efi_table_hdr_t hdr; | |
446 | u32 get_time; | |
447 | u32 set_time; | |
448 | u32 get_wakeup_time; | |
449 | u32 set_wakeup_time; | |
450 | u32 set_virtual_address_map; | |
451 | u32 convert_pointer; | |
452 | u32 get_variable; | |
453 | u32 get_next_variable; | |
454 | u32 set_variable; | |
455 | u32 get_next_high_mono_count; | |
456 | u32 reset_system; | |
457 | u32 update_capsule; | |
458 | u32 query_capsule_caps; | |
459 | u32 query_variable_info; | |
460 | } efi_runtime_services_32_t; | |
461 | ||
462 | typedef struct { | |
463 | efi_table_hdr_t hdr; | |
464 | u64 get_time; | |
465 | u64 set_time; | |
466 | u64 get_wakeup_time; | |
467 | u64 set_wakeup_time; | |
468 | u64 set_virtual_address_map; | |
469 | u64 convert_pointer; | |
470 | u64 get_variable; | |
471 | u64 get_next_variable; | |
472 | u64 set_variable; | |
473 | u64 get_next_high_mono_count; | |
474 | u64 reset_system; | |
475 | u64 update_capsule; | |
476 | u64 query_capsule_caps; | |
477 | u64 query_variable_info; | |
478 | } efi_runtime_services_64_t; | |
479 | ||
480 | typedef struct { | |
481 | efi_table_hdr_t hdr; | |
482 | void *get_time; | |
483 | void *set_time; | |
484 | void *get_wakeup_time; | |
485 | void *set_wakeup_time; | |
486 | void *set_virtual_address_map; | |
487 | void *convert_pointer; | |
488 | void *get_variable; | |
489 | void *get_next_variable; | |
490 | void *set_variable; | |
491 | void *get_next_high_mono_count; | |
492 | void *reset_system; | |
493 | void *update_capsule; | |
494 | void *query_capsule_caps; | |
495 | void *query_variable_info; | |
496 | } efi_runtime_services_t; | |
497 | ||
498 | typedef efi_status_t efi_get_time_t (efi_time_t *tm, efi_time_cap_t *tc); | |
499 | typedef efi_status_t efi_set_time_t (efi_time_t *tm); | |
500 | typedef efi_status_t efi_get_wakeup_time_t (efi_bool_t *enabled, efi_bool_t *pending, | |
501 | efi_time_t *tm); | |
502 | typedef efi_status_t efi_set_wakeup_time_t (efi_bool_t enabled, efi_time_t *tm); | |
503 | typedef efi_status_t efi_get_variable_t (efi_char16_t *name, efi_guid_t *vendor, u32 *attr, | |
504 | unsigned long *data_size, void *data); | |
505 | typedef efi_status_t efi_get_next_variable_t (unsigned long *name_size, efi_char16_t *name, | |
506 | efi_guid_t *vendor); | |
507 | typedef efi_status_t efi_set_variable_t (efi_char16_t *name, efi_guid_t *vendor, | |
508 | u32 attr, unsigned long data_size, | |
509 | void *data); | |
510 | typedef efi_status_t | |
511 | efi_set_variable_nonblocking_t(efi_char16_t *name, efi_guid_t *vendor, | |
512 | u32 attr, unsigned long data_size, void *data); | |
513 | ||
514 | typedef efi_status_t efi_get_next_high_mono_count_t (u32 *count); | |
515 | typedef void efi_reset_system_t (int reset_type, efi_status_t status, | |
516 | unsigned long data_size, efi_char16_t *data); | |
517 | typedef efi_status_t efi_set_virtual_address_map_t (unsigned long memory_map_size, | |
518 | unsigned long descriptor_size, | |
519 | u32 descriptor_version, | |
520 | efi_memory_desc_t *virtual_map); | |
521 | typedef efi_status_t efi_query_variable_info_t(u32 attr, | |
522 | u64 *storage_space, | |
523 | u64 *remaining_space, | |
524 | u64 *max_variable_size); | |
525 | typedef efi_status_t efi_update_capsule_t(efi_capsule_header_t **capsules, | |
526 | unsigned long count, | |
527 | unsigned long sg_list); | |
528 | typedef efi_status_t efi_query_capsule_caps_t(efi_capsule_header_t **capsules, | |
529 | unsigned long count, | |
530 | u64 *max_size, | |
531 | int *reset_type); | |
532 | typedef efi_status_t efi_query_variable_store_t(u32 attributes, unsigned long size); | |
533 | ||
534 | void efi_native_runtime_setup(void); | |
535 | ||
536 | /* | |
537 | * EFI Configuration Table and GUID definitions | |
538 | */ | |
539 | #define NULL_GUID \ | |
540 | EFI_GUID( 0x00000000, 0x0000, 0x0000, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 ) | |
541 | ||
542 | #define MPS_TABLE_GUID \ | |
543 | EFI_GUID( 0xeb9d2d2f, 0x2d88, 0x11d3, 0x9a, 0x16, 0x0, 0x90, 0x27, 0x3f, 0xc1, 0x4d ) | |
544 | ||
545 | #define ACPI_TABLE_GUID \ | |
546 | EFI_GUID( 0xeb9d2d30, 0x2d88, 0x11d3, 0x9a, 0x16, 0x0, 0x90, 0x27, 0x3f, 0xc1, 0x4d ) | |
547 | ||
548 | #define ACPI_20_TABLE_GUID \ | |
549 | EFI_GUID( 0x8868e871, 0xe4f1, 0x11d3, 0xbc, 0x22, 0x0, 0x80, 0xc7, 0x3c, 0x88, 0x81 ) | |
550 | ||
551 | #define SMBIOS_TABLE_GUID \ | |
552 | EFI_GUID( 0xeb9d2d31, 0x2d88, 0x11d3, 0x9a, 0x16, 0x0, 0x90, 0x27, 0x3f, 0xc1, 0x4d ) | |
553 | ||
554 | #define SMBIOS3_TABLE_GUID \ | |
555 | EFI_GUID( 0xf2fd1544, 0x9794, 0x4a2c, 0x99, 0x2e, 0xe5, 0xbb, 0xcf, 0x20, 0xe3, 0x94 ) | |
556 | ||
557 | #define SAL_SYSTEM_TABLE_GUID \ | |
558 | EFI_GUID( 0xeb9d2d32, 0x2d88, 0x11d3, 0x9a, 0x16, 0x0, 0x90, 0x27, 0x3f, 0xc1, 0x4d ) | |
559 | ||
560 | #define HCDP_TABLE_GUID \ | |
561 | EFI_GUID( 0xf951938d, 0x620b, 0x42ef, 0x82, 0x79, 0xa8, 0x4b, 0x79, 0x61, 0x78, 0x98 ) | |
562 | ||
563 | #define UGA_IO_PROTOCOL_GUID \ | |
564 | EFI_GUID( 0x61a4d49e, 0x6f68, 0x4f1b, 0xb9, 0x22, 0xa8, 0x6e, 0xed, 0xb, 0x7, 0xa2 ) | |
565 | ||
566 | #define EFI_GLOBAL_VARIABLE_GUID \ | |
567 | EFI_GUID( 0x8be4df61, 0x93ca, 0x11d2, 0xaa, 0x0d, 0x00, 0xe0, 0x98, 0x03, 0x2b, 0x8c ) | |
568 | ||
569 | #define UV_SYSTEM_TABLE_GUID \ | |
570 | EFI_GUID( 0x3b13a7d4, 0x633e, 0x11dd, 0x93, 0xec, 0xda, 0x25, 0x56, 0xd8, 0x95, 0x93 ) | |
571 | ||
572 | #define LINUX_EFI_CRASH_GUID \ | |
573 | EFI_GUID( 0xcfc8fc79, 0xbe2e, 0x4ddc, 0x97, 0xf0, 0x9f, 0x98, 0xbf, 0xe2, 0x98, 0xa0 ) | |
574 | ||
575 | #define LOADED_IMAGE_PROTOCOL_GUID \ | |
576 | EFI_GUID( 0x5b1b31a1, 0x9562, 0x11d2, 0x8e, 0x3f, 0x00, 0xa0, 0xc9, 0x69, 0x72, 0x3b ) | |
577 | ||
578 | #define EFI_GRAPHICS_OUTPUT_PROTOCOL_GUID \ | |
579 | EFI_GUID( 0x9042a9de, 0x23dc, 0x4a38, 0x96, 0xfb, 0x7a, 0xde, 0xd0, 0x80, 0x51, 0x6a ) | |
580 | ||
581 | #define EFI_UGA_PROTOCOL_GUID \ | |
582 | EFI_GUID( 0x982c298b, 0xf4fa, 0x41cb, 0xb8, 0x38, 0x77, 0xaa, 0x68, 0x8f, 0xb8, 0x39 ) | |
583 | ||
584 | #define EFI_PCI_IO_PROTOCOL_GUID \ | |
585 | EFI_GUID( 0x4cf5b200, 0x68b8, 0x4ca5, 0x9e, 0xec, 0xb2, 0x3e, 0x3f, 0x50, 0x2, 0x9a ) | |
586 | ||
587 | #define EFI_FILE_INFO_ID \ | |
588 | EFI_GUID( 0x9576e92, 0x6d3f, 0x11d2, 0x8e, 0x39, 0x00, 0xa0, 0xc9, 0x69, 0x72, 0x3b ) | |
589 | ||
590 | #define EFI_SYSTEM_RESOURCE_TABLE_GUID \ | |
591 | EFI_GUID( 0xb122a263, 0x3661, 0x4f68, 0x99, 0x29, 0x78, 0xf8, 0xb0, 0xd6, 0x21, 0x80 ) | |
592 | ||
593 | #define EFI_FILE_SYSTEM_GUID \ | |
594 | EFI_GUID( 0x964e5b22, 0x6459, 0x11d2, 0x8e, 0x39, 0x00, 0xa0, 0xc9, 0x69, 0x72, 0x3b ) | |
595 | ||
596 | #define DEVICE_TREE_GUID \ | |
597 | EFI_GUID( 0xb1b621d5, 0xf19c, 0x41a5, 0x83, 0x0b, 0xd9, 0x15, 0x2c, 0x69, 0xaa, 0xe0 ) | |
598 | ||
599 | #define EFI_PROPERTIES_TABLE_GUID \ | |
600 | EFI_GUID( 0x880aaca3, 0x4adc, 0x4a04, 0x90, 0x79, 0xb7, 0x47, 0x34, 0x08, 0x25, 0xe5 ) | |
601 | ||
602 | typedef struct { | |
603 | efi_guid_t guid; | |
604 | u64 table; | |
605 | } efi_config_table_64_t; | |
606 | ||
607 | typedef struct { | |
608 | efi_guid_t guid; | |
609 | u32 table; | |
610 | } efi_config_table_32_t; | |
611 | ||
612 | typedef struct { | |
613 | efi_guid_t guid; | |
614 | unsigned long table; | |
615 | } efi_config_table_t; | |
616 | ||
617 | typedef struct { | |
618 | efi_guid_t guid; | |
619 | const char *name; | |
620 | unsigned long *ptr; | |
621 | } efi_config_table_type_t; | |
622 | ||
623 | #define EFI_SYSTEM_TABLE_SIGNATURE ((u64)0x5453595320494249ULL) | |
624 | ||
625 | #define EFI_2_30_SYSTEM_TABLE_REVISION ((2 << 16) | (30)) | |
626 | #define EFI_2_20_SYSTEM_TABLE_REVISION ((2 << 16) | (20)) | |
627 | #define EFI_2_10_SYSTEM_TABLE_REVISION ((2 << 16) | (10)) | |
628 | #define EFI_2_00_SYSTEM_TABLE_REVISION ((2 << 16) | (00)) | |
629 | #define EFI_1_10_SYSTEM_TABLE_REVISION ((1 << 16) | (10)) | |
630 | #define EFI_1_02_SYSTEM_TABLE_REVISION ((1 << 16) | (02)) | |
631 | ||
632 | typedef struct { | |
633 | efi_table_hdr_t hdr; | |
634 | u64 fw_vendor; /* physical addr of CHAR16 vendor string */ | |
635 | u32 fw_revision; | |
636 | u32 __pad1; | |
637 | u64 con_in_handle; | |
638 | u64 con_in; | |
639 | u64 con_out_handle; | |
640 | u64 con_out; | |
641 | u64 stderr_handle; | |
642 | u64 stderr; | |
643 | u64 runtime; | |
644 | u64 boottime; | |
645 | u32 nr_tables; | |
646 | u32 __pad2; | |
647 | u64 tables; | |
648 | } efi_system_table_64_t; | |
649 | ||
650 | typedef struct { | |
651 | efi_table_hdr_t hdr; | |
652 | u32 fw_vendor; /* physical addr of CHAR16 vendor string */ | |
653 | u32 fw_revision; | |
654 | u32 con_in_handle; | |
655 | u32 con_in; | |
656 | u32 con_out_handle; | |
657 | u32 con_out; | |
658 | u32 stderr_handle; | |
659 | u32 stderr; | |
660 | u32 runtime; | |
661 | u32 boottime; | |
662 | u32 nr_tables; | |
663 | u32 tables; | |
664 | } efi_system_table_32_t; | |
665 | ||
666 | typedef struct { | |
667 | efi_table_hdr_t hdr; | |
668 | unsigned long fw_vendor; /* physical addr of CHAR16 vendor string */ | |
669 | u32 fw_revision; | |
670 | unsigned long con_in_handle; | |
671 | unsigned long con_in; | |
672 | unsigned long con_out_handle; | |
673 | unsigned long con_out; | |
674 | unsigned long stderr_handle; | |
675 | unsigned long stderr; | |
676 | efi_runtime_services_t *runtime; | |
677 | efi_boot_services_t *boottime; | |
678 | unsigned long nr_tables; | |
679 | unsigned long tables; | |
680 | } efi_system_table_t; | |
681 | ||
682 | struct efi_memory_map { | |
683 | phys_addr_t phys_map; | |
684 | void *map; | |
685 | void *map_end; | |
686 | int nr_map; | |
687 | unsigned long desc_version; | |
688 | unsigned long desc_size; | |
689 | }; | |
690 | ||
691 | struct efi_fdt_params { | |
692 | u64 system_table; | |
693 | u64 mmap; | |
694 | u32 mmap_size; | |
695 | u32 desc_size; | |
696 | u32 desc_ver; | |
697 | }; | |
698 | ||
699 | typedef struct { | |
700 | u32 revision; | |
701 | u32 parent_handle; | |
702 | u32 system_table; | |
703 | u32 device_handle; | |
704 | u32 file_path; | |
705 | u32 reserved; | |
706 | u32 load_options_size; | |
707 | u32 load_options; | |
708 | u32 image_base; | |
709 | __aligned_u64 image_size; | |
710 | unsigned int image_code_type; | |
711 | unsigned int image_data_type; | |
712 | unsigned long unload; | |
713 | } efi_loaded_image_32_t; | |
714 | ||
715 | typedef struct { | |
716 | u32 revision; | |
717 | u64 parent_handle; | |
718 | u64 system_table; | |
719 | u64 device_handle; | |
720 | u64 file_path; | |
721 | u64 reserved; | |
722 | u32 load_options_size; | |
723 | u64 load_options; | |
724 | u64 image_base; | |
725 | __aligned_u64 image_size; | |
726 | unsigned int image_code_type; | |
727 | unsigned int image_data_type; | |
728 | unsigned long unload; | |
729 | } efi_loaded_image_64_t; | |
730 | ||
731 | typedef struct { | |
732 | u32 revision; | |
733 | void *parent_handle; | |
734 | efi_system_table_t *system_table; | |
735 | void *device_handle; | |
736 | void *file_path; | |
737 | void *reserved; | |
738 | u32 load_options_size; | |
739 | void *load_options; | |
740 | void *image_base; | |
741 | __aligned_u64 image_size; | |
742 | unsigned int image_code_type; | |
743 | unsigned int image_data_type; | |
744 | unsigned long unload; | |
745 | } efi_loaded_image_t; | |
746 | ||
747 | ||
748 | typedef struct { | |
749 | u64 size; | |
750 | u64 file_size; | |
751 | u64 phys_size; | |
752 | efi_time_t create_time; | |
753 | efi_time_t last_access_time; | |
754 | efi_time_t modification_time; | |
755 | __aligned_u64 attribute; | |
756 | efi_char16_t filename[1]; | |
757 | } efi_file_info_t; | |
758 | ||
759 | typedef struct { | |
760 | u64 revision; | |
761 | u32 open; | |
762 | u32 close; | |
763 | u32 delete; | |
764 | u32 read; | |
765 | u32 write; | |
766 | u32 get_position; | |
767 | u32 set_position; | |
768 | u32 get_info; | |
769 | u32 set_info; | |
770 | u32 flush; | |
771 | } efi_file_handle_32_t; | |
772 | ||
773 | typedef struct { | |
774 | u64 revision; | |
775 | u64 open; | |
776 | u64 close; | |
777 | u64 delete; | |
778 | u64 read; | |
779 | u64 write; | |
780 | u64 get_position; | |
781 | u64 set_position; | |
782 | u64 get_info; | |
783 | u64 set_info; | |
784 | u64 flush; | |
785 | } efi_file_handle_64_t; | |
786 | ||
787 | typedef struct _efi_file_handle { | |
788 | u64 revision; | |
789 | efi_status_t (*open)(struct _efi_file_handle *, | |
790 | struct _efi_file_handle **, | |
791 | efi_char16_t *, u64, u64); | |
792 | efi_status_t (*close)(struct _efi_file_handle *); | |
793 | void *delete; | |
794 | efi_status_t (*read)(struct _efi_file_handle *, unsigned long *, | |
795 | void *); | |
796 | void *write; | |
797 | void *get_position; | |
798 | void *set_position; | |
799 | efi_status_t (*get_info)(struct _efi_file_handle *, efi_guid_t *, | |
800 | unsigned long *, void *); | |
801 | void *set_info; | |
802 | void *flush; | |
803 | } efi_file_handle_t; | |
804 | ||
805 | typedef struct _efi_file_io_interface { | |
806 | u64 revision; | |
807 | int (*open_volume)(struct _efi_file_io_interface *, | |
808 | efi_file_handle_t **); | |
809 | } efi_file_io_interface_t; | |
810 | ||
811 | #define EFI_FILE_MODE_READ 0x0000000000000001 | |
812 | #define EFI_FILE_MODE_WRITE 0x0000000000000002 | |
813 | #define EFI_FILE_MODE_CREATE 0x8000000000000000 | |
814 | ||
815 | typedef struct { | |
816 | u32 version; | |
817 | u32 length; | |
818 | u64 memory_protection_attribute; | |
819 | } efi_properties_table_t; | |
820 | ||
821 | #define EFI_PROPERTIES_TABLE_VERSION 0x00010000 | |
822 | #define EFI_PROPERTIES_RUNTIME_MEMORY_PROTECTION_NON_EXECUTABLE_PE_DATA 0x1 | |
823 | ||
824 | #define EFI_INVALID_TABLE_ADDR (~0UL) | |
825 | ||
826 | /* | |
827 | * All runtime access to EFI goes through this structure: | |
828 | */ | |
829 | extern struct efi { | |
830 | efi_system_table_t *systab; /* EFI system table */ | |
831 | unsigned int runtime_version; /* Runtime services version */ | |
832 | unsigned long mps; /* MPS table */ | |
833 | unsigned long acpi; /* ACPI table (IA64 ext 0.71) */ | |
834 | unsigned long acpi20; /* ACPI table (ACPI 2.0) */ | |
835 | unsigned long smbios; /* SMBIOS table (32 bit entry point) */ | |
836 | unsigned long smbios3; /* SMBIOS table (64 bit entry point) */ | |
837 | unsigned long sal_systab; /* SAL system table */ | |
838 | unsigned long boot_info; /* boot info table */ | |
839 | unsigned long hcdp; /* HCDP table */ | |
840 | unsigned long uga; /* UGA table */ | |
841 | unsigned long uv_systab; /* UV system table */ | |
842 | unsigned long fw_vendor; /* fw_vendor */ | |
843 | unsigned long runtime; /* runtime table */ | |
844 | unsigned long config_table; /* config tables */ | |
845 | unsigned long esrt; /* ESRT table */ | |
846 | unsigned long properties_table; /* properties table */ | |
847 | efi_get_time_t *get_time; | |
848 | efi_set_time_t *set_time; | |
849 | efi_get_wakeup_time_t *get_wakeup_time; | |
850 | efi_set_wakeup_time_t *set_wakeup_time; | |
851 | efi_get_variable_t *get_variable; | |
852 | efi_get_next_variable_t *get_next_variable; | |
853 | efi_set_variable_t *set_variable; | |
854 | efi_set_variable_nonblocking_t *set_variable_nonblocking; | |
855 | efi_query_variable_info_t *query_variable_info; | |
856 | efi_update_capsule_t *update_capsule; | |
857 | efi_query_capsule_caps_t *query_capsule_caps; | |
858 | efi_get_next_high_mono_count_t *get_next_high_mono_count; | |
859 | efi_reset_system_t *reset_system; | |
860 | efi_set_virtual_address_map_t *set_virtual_address_map; | |
861 | struct efi_memory_map *memmap; | |
862 | unsigned long flags; | |
863 | } efi; | |
864 | ||
865 | static inline int | |
866 | efi_guidcmp (efi_guid_t left, efi_guid_t right) | |
867 | { | |
868 | return memcmp(&left, &right, sizeof (efi_guid_t)); | |
869 | } | |
870 | ||
871 | static inline char * | |
872 | efi_guid_to_str(efi_guid_t *guid, char *out) | |
873 | { | |
874 | sprintf(out, "%pUl", guid->b); | |
875 | return out; | |
876 | } | |
877 | ||
878 | extern void efi_init (void); | |
879 | extern void *efi_get_pal_addr (void); | |
880 | extern void efi_map_pal_code (void); | |
881 | extern void efi_memmap_walk (efi_freemem_callback_t callback, void *arg); | |
882 | extern void efi_gettimeofday (struct timespec *ts); | |
883 | extern void efi_enter_virtual_mode (void); /* switch EFI to virtual mode, if possible */ | |
884 | #ifdef CONFIG_X86 | |
885 | extern void efi_late_init(void); | |
886 | extern void efi_free_boot_services(void); | |
887 | extern efi_status_t efi_query_variable_store(u32 attributes, unsigned long size); | |
888 | extern void efi_find_mirror(void); | |
889 | #else | |
890 | static inline void efi_late_init(void) {} | |
891 | static inline void efi_free_boot_services(void) {} | |
892 | ||
893 | static inline efi_status_t efi_query_variable_store(u32 attributes, unsigned long size) | |
894 | { | |
895 | return EFI_SUCCESS; | |
896 | } | |
897 | #endif | |
898 | extern void __iomem *efi_lookup_mapped_addr(u64 phys_addr); | |
899 | extern int efi_config_init(efi_config_table_type_t *arch_tables); | |
900 | #ifdef CONFIG_EFI_ESRT | |
901 | extern void __init efi_esrt_init(void); | |
902 | #else | |
903 | static inline void efi_esrt_init(void) { } | |
904 | #endif | |
905 | extern int efi_config_parse_tables(void *config_tables, int count, int sz, | |
906 | efi_config_table_type_t *arch_tables); | |
907 | extern u64 efi_get_iobase (void); | |
908 | extern u32 efi_mem_type (unsigned long phys_addr); | |
909 | extern u64 efi_mem_attributes (unsigned long phys_addr); | |
910 | extern u64 efi_mem_attribute (unsigned long phys_addr, unsigned long size); | |
911 | extern int __init efi_uart_console_only (void); | |
912 | extern u64 efi_mem_desc_end(efi_memory_desc_t *md); | |
913 | extern int efi_mem_desc_lookup(u64 phys_addr, efi_memory_desc_t *out_md); | |
914 | extern void efi_initialize_iomem_resources(struct resource *code_resource, | |
915 | struct resource *data_resource, struct resource *bss_resource); | |
916 | extern void efi_get_time(struct timespec *now); | |
917 | extern void efi_reserve_boot_services(void); | |
918 | extern int efi_get_fdt_params(struct efi_fdt_params *params); | |
919 | extern struct efi_memory_map memmap; | |
920 | extern struct kobject *efi_kobj; | |
921 | ||
922 | extern int efi_reboot_quirk_mode; | |
923 | extern bool efi_poweroff_required(void); | |
924 | ||
925 | #ifdef CONFIG_EFI_FAKE_MEMMAP | |
926 | extern void __init efi_fake_memmap(void); | |
927 | #else | |
928 | static inline void efi_fake_memmap(void) { } | |
929 | #endif | |
930 | ||
931 | /* Iterate through an efi_memory_map */ | |
932 | #define for_each_efi_memory_desc(m, md) \ | |
933 | for ((md) = (m)->map; \ | |
934 | (md) <= (efi_memory_desc_t *)((m)->map_end - (m)->desc_size); \ | |
935 | (md) = (void *)(md) + (m)->desc_size) | |
936 | ||
937 | /* | |
938 | * Format an EFI memory descriptor's type and attributes to a user-provided | |
939 | * character buffer, as per snprintf(), and return the buffer. | |
940 | */ | |
941 | char * __init efi_md_typeattr_format(char *buf, size_t size, | |
942 | const efi_memory_desc_t *md); | |
943 | ||
944 | /** | |
945 | * efi_range_is_wc - check the WC bit on an address range | |
946 | * @start: starting kvirt address | |
947 | * @len: length of range | |
948 | * | |
949 | * Consult the EFI memory map and make sure it's ok to set this range WC. | |
950 | * Returns true or false. | |
951 | */ | |
952 | static inline int efi_range_is_wc(unsigned long start, unsigned long len) | |
953 | { | |
954 | unsigned long i; | |
955 | ||
956 | for (i = 0; i < len; i += (1UL << EFI_PAGE_SHIFT)) { | |
957 | unsigned long paddr = __pa(start + i); | |
958 | if (!(efi_mem_attributes(paddr) & EFI_MEMORY_WC)) | |
959 | return 0; | |
960 | } | |
961 | /* The range checked out */ | |
962 | return 1; | |
963 | } | |
964 | ||
965 | #ifdef CONFIG_EFI_PCDP | |
966 | extern int __init efi_setup_pcdp_console(char *); | |
967 | #endif | |
968 | ||
969 | /* | |
970 | * We play games with efi_enabled so that the compiler will, if | |
971 | * possible, remove EFI-related code altogether. | |
972 | */ | |
973 | #define EFI_BOOT 0 /* Were we booted from EFI? */ | |
974 | #define EFI_SYSTEM_TABLES 1 /* Can we use EFI system tables? */ | |
975 | #define EFI_CONFIG_TABLES 2 /* Can we use EFI config tables? */ | |
976 | #define EFI_RUNTIME_SERVICES 3 /* Can we use runtime services? */ | |
977 | #define EFI_MEMMAP 4 /* Can we use EFI memory map? */ | |
978 | #define EFI_64BIT 5 /* Is the firmware 64-bit? */ | |
979 | #define EFI_PARAVIRT 6 /* Access is via a paravirt interface */ | |
980 | #define EFI_ARCH_1 7 /* First arch-specific bit */ | |
981 | #define EFI_DBG 8 /* Print additional debug info at runtime */ | |
982 | #define EFI_NX_PE_DATA 9 /* Can runtime data regions be mapped non-executable? */ | |
983 | ||
984 | #ifdef CONFIG_EFI | |
985 | /* | |
986 | * Test whether the above EFI_* bits are enabled. | |
987 | */ | |
988 | static inline bool efi_enabled(int feature) | |
989 | { | |
990 | return test_bit(feature, &efi.flags) != 0; | |
991 | } | |
992 | extern void efi_reboot(enum reboot_mode reboot_mode, const char *__unused); | |
993 | #else | |
994 | static inline bool efi_enabled(int feature) | |
995 | { | |
996 | return false; | |
997 | } | |
998 | static inline void | |
999 | efi_reboot(enum reboot_mode reboot_mode, const char *__unused) {} | |
1000 | #endif | |
1001 | ||
1002 | /* | |
1003 | * Variable Attributes | |
1004 | */ | |
1005 | #define EFI_VARIABLE_NON_VOLATILE 0x0000000000000001 | |
1006 | #define EFI_VARIABLE_BOOTSERVICE_ACCESS 0x0000000000000002 | |
1007 | #define EFI_VARIABLE_RUNTIME_ACCESS 0x0000000000000004 | |
1008 | #define EFI_VARIABLE_HARDWARE_ERROR_RECORD 0x0000000000000008 | |
1009 | #define EFI_VARIABLE_AUTHENTICATED_WRITE_ACCESS 0x0000000000000010 | |
1010 | #define EFI_VARIABLE_TIME_BASED_AUTHENTICATED_WRITE_ACCESS 0x0000000000000020 | |
1011 | #define EFI_VARIABLE_APPEND_WRITE 0x0000000000000040 | |
1012 | ||
1013 | #define EFI_VARIABLE_MASK (EFI_VARIABLE_NON_VOLATILE | \ | |
1014 | EFI_VARIABLE_BOOTSERVICE_ACCESS | \ | |
1015 | EFI_VARIABLE_RUNTIME_ACCESS | \ | |
1016 | EFI_VARIABLE_HARDWARE_ERROR_RECORD | \ | |
1017 | EFI_VARIABLE_AUTHENTICATED_WRITE_ACCESS | \ | |
1018 | EFI_VARIABLE_TIME_BASED_AUTHENTICATED_WRITE_ACCESS | \ | |
1019 | EFI_VARIABLE_APPEND_WRITE) | |
1020 | /* | |
1021 | * Length of a GUID string (strlen("aaaaaaaa-bbbb-cccc-dddd-eeeeeeeeeeee")) | |
1022 | * not including trailing NUL | |
1023 | */ | |
1024 | #define EFI_VARIABLE_GUID_LEN 36 | |
1025 | ||
1026 | /* | |
1027 | * The type of search to perform when calling boottime->locate_handle | |
1028 | */ | |
1029 | #define EFI_LOCATE_ALL_HANDLES 0 | |
1030 | #define EFI_LOCATE_BY_REGISTER_NOTIFY 1 | |
1031 | #define EFI_LOCATE_BY_PROTOCOL 2 | |
1032 | ||
1033 | /* | |
1034 | * EFI Device Path information | |
1035 | */ | |
1036 | #define EFI_DEV_HW 0x01 | |
1037 | #define EFI_DEV_PCI 1 | |
1038 | #define EFI_DEV_PCCARD 2 | |
1039 | #define EFI_DEV_MEM_MAPPED 3 | |
1040 | #define EFI_DEV_VENDOR 4 | |
1041 | #define EFI_DEV_CONTROLLER 5 | |
1042 | #define EFI_DEV_ACPI 0x02 | |
1043 | #define EFI_DEV_BASIC_ACPI 1 | |
1044 | #define EFI_DEV_EXPANDED_ACPI 2 | |
1045 | #define EFI_DEV_MSG 0x03 | |
1046 | #define EFI_DEV_MSG_ATAPI 1 | |
1047 | #define EFI_DEV_MSG_SCSI 2 | |
1048 | #define EFI_DEV_MSG_FC 3 | |
1049 | #define EFI_DEV_MSG_1394 4 | |
1050 | #define EFI_DEV_MSG_USB 5 | |
1051 | #define EFI_DEV_MSG_USB_CLASS 15 | |
1052 | #define EFI_DEV_MSG_I20 6 | |
1053 | #define EFI_DEV_MSG_MAC 11 | |
1054 | #define EFI_DEV_MSG_IPV4 12 | |
1055 | #define EFI_DEV_MSG_IPV6 13 | |
1056 | #define EFI_DEV_MSG_INFINIBAND 9 | |
1057 | #define EFI_DEV_MSG_UART 14 | |
1058 | #define EFI_DEV_MSG_VENDOR 10 | |
1059 | #define EFI_DEV_MEDIA 0x04 | |
1060 | #define EFI_DEV_MEDIA_HARD_DRIVE 1 | |
1061 | #define EFI_DEV_MEDIA_CDROM 2 | |
1062 | #define EFI_DEV_MEDIA_VENDOR 3 | |
1063 | #define EFI_DEV_MEDIA_FILE 4 | |
1064 | #define EFI_DEV_MEDIA_PROTOCOL 5 | |
1065 | #define EFI_DEV_BIOS_BOOT 0x05 | |
1066 | #define EFI_DEV_END_PATH 0x7F | |
1067 | #define EFI_DEV_END_PATH2 0xFF | |
1068 | #define EFI_DEV_END_INSTANCE 0x01 | |
1069 | #define EFI_DEV_END_ENTIRE 0xFF | |
1070 | ||
1071 | struct efi_generic_dev_path { | |
1072 | u8 type; | |
1073 | u8 sub_type; | |
1074 | u16 length; | |
1075 | } __attribute ((packed)); | |
1076 | ||
1077 | static inline void memrange_efi_to_native(u64 *addr, u64 *npages) | |
1078 | { | |
1079 | *npages = PFN_UP(*addr + (*npages<<EFI_PAGE_SHIFT)) - PFN_DOWN(*addr); | |
1080 | *addr &= PAGE_MASK; | |
1081 | } | |
1082 | ||
1083 | /* | |
1084 | * EFI Variable support. | |
1085 | * | |
1086 | * Different firmware drivers can expose their EFI-like variables using | |
1087 | * the following. | |
1088 | */ | |
1089 | ||
1090 | struct efivar_operations { | |
1091 | efi_get_variable_t *get_variable; | |
1092 | efi_get_next_variable_t *get_next_variable; | |
1093 | efi_set_variable_t *set_variable; | |
1094 | efi_set_variable_nonblocking_t *set_variable_nonblocking; | |
1095 | efi_query_variable_store_t *query_variable_store; | |
1096 | }; | |
1097 | ||
1098 | struct efivars { | |
1099 | /* | |
1100 | * ->lock protects two things: | |
1101 | * 1) efivarfs_list and efivars_sysfs_list | |
1102 | * 2) ->ops calls | |
1103 | */ | |
1104 | spinlock_t lock; | |
1105 | struct kset *kset; | |
1106 | struct kobject *kobject; | |
1107 | const struct efivar_operations *ops; | |
1108 | }; | |
1109 | ||
1110 | /* | |
1111 | * The maximum size of VariableName + Data = 1024 | |
1112 | * Therefore, it's reasonable to save that much | |
1113 | * space in each part of the structure, | |
1114 | * and we use a page for reading/writing. | |
1115 | */ | |
1116 | ||
1117 | #define EFI_VAR_NAME_LEN 1024 | |
1118 | ||
1119 | struct efi_variable { | |
1120 | efi_char16_t VariableName[EFI_VAR_NAME_LEN/sizeof(efi_char16_t)]; | |
1121 | efi_guid_t VendorGuid; | |
1122 | unsigned long DataSize; | |
1123 | __u8 Data[1024]; | |
1124 | efi_status_t Status; | |
1125 | __u32 Attributes; | |
1126 | } __attribute__((packed)); | |
1127 | ||
1128 | struct efivar_entry { | |
1129 | struct efi_variable var; | |
1130 | struct list_head list; | |
1131 | struct kobject kobj; | |
1132 | bool scanning; | |
1133 | bool deleting; | |
1134 | }; | |
1135 | ||
1136 | struct efi_simple_text_output_protocol_32 { | |
1137 | u32 reset; | |
1138 | u32 output_string; | |
1139 | u32 test_string; | |
1140 | }; | |
1141 | ||
1142 | struct efi_simple_text_output_protocol_64 { | |
1143 | u64 reset; | |
1144 | u64 output_string; | |
1145 | u64 test_string; | |
1146 | }; | |
1147 | ||
1148 | struct efi_simple_text_output_protocol { | |
1149 | void *reset; | |
1150 | efi_status_t (*output_string)(void *, void *); | |
1151 | void *test_string; | |
1152 | }; | |
1153 | ||
1154 | extern struct list_head efivar_sysfs_list; | |
1155 | ||
1156 | static inline void | |
1157 | efivar_unregister(struct efivar_entry *var) | |
1158 | { | |
1159 | kobject_put(&var->kobj); | |
1160 | } | |
1161 | ||
1162 | int efivars_register(struct efivars *efivars, | |
1163 | const struct efivar_operations *ops, | |
1164 | struct kobject *kobject); | |
1165 | int efivars_unregister(struct efivars *efivars); | |
1166 | struct kobject *efivars_kobject(void); | |
1167 | ||
1168 | int efivar_init(int (*func)(efi_char16_t *, efi_guid_t, unsigned long, void *), | |
1169 | void *data, bool atomic, bool duplicates, | |
1170 | struct list_head *head); | |
1171 | ||
1172 | void efivar_entry_add(struct efivar_entry *entry, struct list_head *head); | |
1173 | void efivar_entry_remove(struct efivar_entry *entry); | |
1174 | ||
1175 | int __efivar_entry_delete(struct efivar_entry *entry); | |
1176 | int efivar_entry_delete(struct efivar_entry *entry); | |
1177 | ||
1178 | int efivar_entry_size(struct efivar_entry *entry, unsigned long *size); | |
1179 | int __efivar_entry_get(struct efivar_entry *entry, u32 *attributes, | |
1180 | unsigned long *size, void *data); | |
1181 | int efivar_entry_get(struct efivar_entry *entry, u32 *attributes, | |
1182 | unsigned long *size, void *data); | |
1183 | int efivar_entry_set(struct efivar_entry *entry, u32 attributes, | |
1184 | unsigned long size, void *data, struct list_head *head); | |
1185 | int efivar_entry_set_get_size(struct efivar_entry *entry, u32 attributes, | |
1186 | unsigned long *size, void *data, bool *set); | |
1187 | int efivar_entry_set_safe(efi_char16_t *name, efi_guid_t vendor, u32 attributes, | |
1188 | bool block, unsigned long size, void *data); | |
1189 | ||
1190 | void efivar_entry_iter_begin(void); | |
1191 | void efivar_entry_iter_end(void); | |
1192 | ||
1193 | int __efivar_entry_iter(int (*func)(struct efivar_entry *, void *), | |
1194 | struct list_head *head, void *data, | |
1195 | struct efivar_entry **prev); | |
1196 | int efivar_entry_iter(int (*func)(struct efivar_entry *, void *), | |
1197 | struct list_head *head, void *data); | |
1198 | ||
1199 | struct efivar_entry *efivar_entry_find(efi_char16_t *name, efi_guid_t guid, | |
1200 | struct list_head *head, bool remove); | |
1201 | ||
1202 | bool efivar_validate(efi_char16_t *var_name, u8 *data, unsigned long len); | |
1203 | ||
1204 | extern struct work_struct efivar_work; | |
1205 | void efivar_run_worker(void); | |
1206 | ||
1207 | #if defined(CONFIG_EFI_VARS) || defined(CONFIG_EFI_VARS_MODULE) | |
1208 | int efivars_sysfs_init(void); | |
1209 | ||
1210 | #define EFIVARS_DATA_SIZE_MAX 1024 | |
1211 | ||
1212 | #endif /* CONFIG_EFI_VARS */ | |
1213 | ||
1214 | #ifdef CONFIG_EFI_RUNTIME_MAP | |
1215 | int efi_runtime_map_init(struct kobject *); | |
1216 | void efi_runtime_map_setup(void *, int, u32); | |
1217 | int efi_get_runtime_map_size(void); | |
1218 | int efi_get_runtime_map_desc_size(void); | |
1219 | int efi_runtime_map_copy(void *buf, size_t bufsz); | |
1220 | #else | |
1221 | static inline int efi_runtime_map_init(struct kobject *kobj) | |
1222 | { | |
1223 | return 0; | |
1224 | } | |
1225 | ||
1226 | static inline void | |
1227 | efi_runtime_map_setup(void *map, int nr_entries, u32 desc_size) {} | |
1228 | ||
1229 | static inline int efi_get_runtime_map_size(void) | |
1230 | { | |
1231 | return 0; | |
1232 | } | |
1233 | ||
1234 | static inline int efi_get_runtime_map_desc_size(void) | |
1235 | { | |
1236 | return 0; | |
1237 | } | |
1238 | ||
1239 | static inline int efi_runtime_map_copy(void *buf, size_t bufsz) | |
1240 | { | |
1241 | return 0; | |
1242 | } | |
1243 | ||
1244 | #endif | |
1245 | ||
1246 | /* prototypes shared between arch specific and generic stub code */ | |
1247 | ||
1248 | #define pr_efi(sys_table, msg) efi_printk(sys_table, "EFI stub: "msg) | |
1249 | #define pr_efi_err(sys_table, msg) efi_printk(sys_table, "EFI stub: ERROR: "msg) | |
1250 | ||
1251 | void efi_printk(efi_system_table_t *sys_table_arg, char *str); | |
1252 | ||
1253 | void efi_free(efi_system_table_t *sys_table_arg, unsigned long size, | |
1254 | unsigned long addr); | |
1255 | ||
1256 | char *efi_convert_cmdline(efi_system_table_t *sys_table_arg, | |
1257 | efi_loaded_image_t *image, int *cmd_line_len); | |
1258 | ||
1259 | efi_status_t efi_get_memory_map(efi_system_table_t *sys_table_arg, | |
1260 | efi_memory_desc_t **map, | |
1261 | unsigned long *map_size, | |
1262 | unsigned long *desc_size, | |
1263 | u32 *desc_ver, | |
1264 | unsigned long *key_ptr); | |
1265 | ||
1266 | efi_status_t efi_low_alloc(efi_system_table_t *sys_table_arg, | |
1267 | unsigned long size, unsigned long align, | |
1268 | unsigned long *addr); | |
1269 | ||
1270 | efi_status_t efi_high_alloc(efi_system_table_t *sys_table_arg, | |
1271 | unsigned long size, unsigned long align, | |
1272 | unsigned long *addr, unsigned long max); | |
1273 | ||
1274 | efi_status_t efi_relocate_kernel(efi_system_table_t *sys_table_arg, | |
1275 | unsigned long *image_addr, | |
1276 | unsigned long image_size, | |
1277 | unsigned long alloc_size, | |
1278 | unsigned long preferred_addr, | |
1279 | unsigned long alignment); | |
1280 | ||
1281 | efi_status_t handle_cmdline_files(efi_system_table_t *sys_table_arg, | |
1282 | efi_loaded_image_t *image, | |
1283 | char *cmd_line, char *option_string, | |
1284 | unsigned long max_addr, | |
1285 | unsigned long *load_addr, | |
1286 | unsigned long *load_size); | |
1287 | ||
1288 | efi_status_t efi_parse_options(char *cmdline); | |
1289 | ||
1290 | bool efi_runtime_disabled(void); | |
1291 | #endif /* _LINUX_EFI_H */ |