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b2441318 | 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
1da177e4 LT |
2 | #ifndef _LINUX_EFI_H |
3 | #define _LINUX_EFI_H | |
4 | ||
5 | /* | |
6 | * Extensible Firmware Interface | |
7 | * Based on 'Extensible Firmware Interface Specification' version 0.9, April 30, 1999 | |
8 | * | |
9 | * Copyright (C) 1999 VA Linux Systems | |
10 | * Copyright (C) 1999 Walt Drummond <drummond@valinux.com> | |
11 | * Copyright (C) 1999, 2002-2003 Hewlett-Packard Co. | |
12 | * David Mosberger-Tang <davidm@hpl.hp.com> | |
13 | * Stephane Eranian <eranian@hpl.hp.com> | |
14 | */ | |
15 | #include <linux/init.h> | |
16 | #include <linux/string.h> | |
17 | #include <linux/time.h> | |
18 | #include <linux/types.h> | |
19 | #include <linux/proc_fs.h> | |
20 | #include <linux/rtc.h> | |
21 | #include <linux/ioport.h> | |
4a3575fd | 22 | #include <linux/pfn.h> |
5ee9c198 | 23 | #include <linux/pstore.h> |
60863c0d | 24 | #include <linux/range.h> |
8562c99c | 25 | #include <linux/reboot.h> |
ba7e34b1 | 26 | #include <linux/uuid.h> |
2c23b73c | 27 | #include <linux/screen_info.h> |
1da177e4 LT |
28 | |
29 | #include <asm/page.h> | |
1da177e4 LT |
30 | |
31 | #define EFI_SUCCESS 0 | |
2f196059 | 32 | #define EFI_LOAD_ERROR ( 1 | (1UL << (BITS_PER_LONG-1))) |
1da177e4 LT |
33 | #define EFI_INVALID_PARAMETER ( 2 | (1UL << (BITS_PER_LONG-1))) |
34 | #define EFI_UNSUPPORTED ( 3 | (1UL << (BITS_PER_LONG-1))) | |
2f196059 | 35 | #define EFI_BAD_BUFFER_SIZE ( 4 | (1UL << (BITS_PER_LONG-1))) |
1da177e4 | 36 | #define EFI_BUFFER_TOO_SMALL ( 5 | (1UL << (BITS_PER_LONG-1))) |
5d9db883 MG |
37 | #define EFI_NOT_READY ( 6 | (1UL << (BITS_PER_LONG-1))) |
38 | #define EFI_DEVICE_ERROR ( 7 | (1UL << (BITS_PER_LONG-1))) | |
39 | #define EFI_WRITE_PROTECTED ( 8 | (1UL << (BITS_PER_LONG-1))) | |
40 | #define EFI_OUT_OF_RESOURCES ( 9 | (1UL << (BITS_PER_LONG-1))) | |
1da177e4 | 41 | #define EFI_NOT_FOUND (14 | (1UL << (BITS_PER_LONG-1))) |
14c574f3 | 42 | #define EFI_TIMEOUT (18 | (1UL << (BITS_PER_LONG-1))) |
dce48e35 | 43 | #define EFI_ABORTED (21 | (1UL << (BITS_PER_LONG-1))) |
5d9db883 | 44 | #define EFI_SECURITY_VIOLATION (26 | (1UL << (BITS_PER_LONG-1))) |
1da177e4 LT |
45 | |
46 | typedef unsigned long efi_status_t; | |
47 | typedef u8 efi_bool_t; | |
48 | typedef u16 efi_char16_t; /* UNICODE character */ | |
ed37ddff RF |
49 | typedef u64 efi_physical_addr_t; |
50 | typedef void *efi_handle_t; | |
1da177e4 | 51 | |
89ed4865 | 52 | #if defined(CONFIG_X86_64) |
8f24f8c2 | 53 | #define __efiapi __attribute__((ms_abi)) |
89ed4865 AB |
54 | #elif defined(CONFIG_X86_32) |
55 | #define __efiapi __attribute__((regparm(0))) | |
8f24f8c2 AB |
56 | #else |
57 | #define __efiapi | |
58 | #endif | |
59 | ||
494c704f AB |
60 | /* |
61 | * The UEFI spec and EDK2 reference implementation both define EFI_GUID as | |
62 | * struct { u32 a; u16; b; u16 c; u8 d[8]; }; and so the implied alignment | |
63 | * is 32 bits not 8 bits like our guid_t. In some cases (i.e., on 32-bit ARM), | |
64 | * this means that firmware services invoked by the kernel may assume that | |
65 | * efi_guid_t* arguments are 32-bit aligned, and use memory accessors that | |
66 | * do not tolerate misalignment. So let's set the minimum alignment to 32 bits. | |
67 | * | |
68 | * Note that the UEFI spec as well as some comments in the EDK2 code base | |
69 | * suggest that EFI_GUID should be 64-bit aligned, but this appears to be | |
70 | * a mistake, given that no code seems to exist that actually enforces that | |
71 | * or relies on it. | |
72 | */ | |
73 | typedef guid_t efi_guid_t __aligned(__alignof__(u32)); | |
1da177e4 | 74 | |
fb98cc0b AB |
75 | #define EFI_GUID(a, b, c, d...) (efi_guid_t){ { \ |
76 | (a) & 0xff, ((a) >> 8) & 0xff, ((a) >> 16) & 0xff, ((a) >> 24) & 0xff, \ | |
77 | (b) & 0xff, ((b) >> 8) & 0xff, \ | |
78 | (c) & 0xff, ((c) >> 8) & 0xff, d } } | |
1da177e4 LT |
79 | |
80 | /* | |
81 | * Generic EFI table header | |
82 | */ | |
83 | typedef struct { | |
84 | u64 signature; | |
85 | u32 revision; | |
86 | u32 headersize; | |
87 | u32 crc32; | |
88 | u32 reserved; | |
89 | } efi_table_hdr_t; | |
90 | ||
91 | /* | |
92 | * Memory map descriptor: | |
93 | */ | |
94 | ||
95 | /* Memory types: */ | |
96 | #define EFI_RESERVED_TYPE 0 | |
97 | #define EFI_LOADER_CODE 1 | |
98 | #define EFI_LOADER_DATA 2 | |
99 | #define EFI_BOOT_SERVICES_CODE 3 | |
100 | #define EFI_BOOT_SERVICES_DATA 4 | |
101 | #define EFI_RUNTIME_SERVICES_CODE 5 | |
102 | #define EFI_RUNTIME_SERVICES_DATA 6 | |
103 | #define EFI_CONVENTIONAL_MEMORY 7 | |
104 | #define EFI_UNUSABLE_MEMORY 8 | |
105 | #define EFI_ACPI_RECLAIM_MEMORY 9 | |
106 | #define EFI_ACPI_MEMORY_NVS 10 | |
107 | #define EFI_MEMORY_MAPPED_IO 11 | |
108 | #define EFI_MEMORY_MAPPED_IO_PORT_SPACE 12 | |
109 | #define EFI_PAL_CODE 13 | |
ad5fb870 DW |
110 | #define EFI_PERSISTENT_MEMORY 14 |
111 | #define EFI_MAX_MEMORY_TYPE 15 | |
1da177e4 LT |
112 | |
113 | /* Attribute values: */ | |
114 | #define EFI_MEMORY_UC ((u64)0x0000000000000001ULL) /* uncached */ | |
115 | #define EFI_MEMORY_WC ((u64)0x0000000000000002ULL) /* write-coalescing */ | |
116 | #define EFI_MEMORY_WT ((u64)0x0000000000000004ULL) /* write-through */ | |
117 | #define EFI_MEMORY_WB ((u64)0x0000000000000008ULL) /* write-back */ | |
9c97e0bd | 118 | #define EFI_MEMORY_UCE ((u64)0x0000000000000010ULL) /* uncached, exported */ |
1da177e4 LT |
119 | #define EFI_MEMORY_WP ((u64)0x0000000000001000ULL) /* write-protect */ |
120 | #define EFI_MEMORY_RP ((u64)0x0000000000002000ULL) /* read-protect */ | |
121 | #define EFI_MEMORY_XP ((u64)0x0000000000004000ULL) /* execute-protect */ | |
c016ca08 | 122 | #define EFI_MEMORY_NV ((u64)0x0000000000008000ULL) /* non-volatile */ |
b05b9f5f TL |
123 | #define EFI_MEMORY_MORE_RELIABLE \ |
124 | ((u64)0x0000000000010000ULL) /* higher reliability */ | |
87db73ae | 125 | #define EFI_MEMORY_RO ((u64)0x0000000000020000ULL) /* read-only */ |
fe3e5e65 | 126 | #define EFI_MEMORY_SP ((u64)0x0000000000040000ULL) /* soft reserved */ |
6277e374 | 127 | #define EFI_MEMORY_CPU_CRYPTO ((u64)0x0000000000080000ULL) /* supports encryption */ |
1da177e4 LT |
128 | #define EFI_MEMORY_RUNTIME ((u64)0x8000000000000000ULL) /* range requires runtime mapping */ |
129 | #define EFI_MEMORY_DESCRIPTOR_VERSION 1 | |
130 | ||
131 | #define EFI_PAGE_SHIFT 12 | |
ed37ddff | 132 | #define EFI_PAGE_SIZE (1UL << EFI_PAGE_SHIFT) |
0100a3e6 | 133 | #define EFI_PAGES_MAX (U64_MAX >> EFI_PAGE_SHIFT) |
1da177e4 | 134 | |
1da177e4 LT |
135 | typedef struct { |
136 | u32 type; | |
137 | u32 pad; | |
138 | u64 phys_addr; | |
139 | u64 virt_addr; | |
140 | u64 num_pages; | |
141 | u64 attribute; | |
1da177e4 LT |
142 | } efi_memory_desc_t; |
143 | ||
3b370237 MG |
144 | typedef struct { |
145 | efi_guid_t guid; | |
146 | u32 headersize; | |
147 | u32 flags; | |
148 | u32 imagesize; | |
149 | } efi_capsule_header_t; | |
150 | ||
1882de7f CY |
151 | /* EFI_FIRMWARE_MANAGEMENT_CAPSULE_HEADER */ |
152 | struct efi_manage_capsule_header { | |
153 | u32 ver; | |
154 | u16 emb_drv_cnt; | |
155 | u16 payload_cnt; | |
156 | /* | |
157 | * Variable-size array of the size given by the sum of | |
158 | * emb_drv_cnt and payload_cnt. | |
159 | */ | |
160 | u64 offset_list[]; | |
161 | } __packed; | |
162 | ||
163 | /* EFI_FIRMWARE_MANAGEMENT_CAPSULE_IMAGE_HEADER */ | |
164 | struct efi_manage_capsule_image_header { | |
165 | u32 ver; | |
166 | efi_guid_t image_type_id; | |
167 | u8 image_index; | |
168 | u8 reserved_bytes[3]; | |
169 | u32 image_size; | |
170 | u32 vendor_code_size; | |
171 | /* hw_ins was introduced in version 2 */ | |
172 | u64 hw_ins; | |
173 | /* capsule_support was introduced in version 3 */ | |
174 | u64 capsule_support; | |
175 | } __packed; | |
176 | ||
177 | /* WIN_CERTIFICATE */ | |
178 | struct win_cert { | |
179 | u32 len; | |
180 | u16 rev; | |
181 | u16 cert_type; | |
182 | }; | |
183 | ||
184 | /* WIN_CERTIFICATE_UEFI_GUID */ | |
185 | struct win_cert_uefi_guid { | |
186 | struct win_cert hdr; | |
187 | efi_guid_t cert_type; | |
188 | u8 cert_data[]; | |
189 | }; | |
190 | ||
191 | /* EFI_FIRMWARE_IMAGE_AUTHENTICATION */ | |
192 | struct efi_image_auth { | |
193 | u64 mon_count; | |
194 | struct win_cert_uefi_guid auth_info; | |
195 | }; | |
196 | ||
f0133f3c MF |
197 | /* |
198 | * EFI capsule flags | |
199 | */ | |
200 | #define EFI_CAPSULE_PERSIST_ACROSS_RESET 0x00010000 | |
201 | #define EFI_CAPSULE_POPULATE_SYSTEM_TABLE 0x00020000 | |
202 | #define EFI_CAPSULE_INITIATE_RESET 0x00040000 | |
203 | ||
3fabd628 AB |
204 | struct capsule_info { |
205 | efi_capsule_header_t header; | |
f24c4d47 | 206 | efi_capsule_header_t *capsule; |
3fabd628 AB |
207 | int reset_type; |
208 | long index; | |
209 | size_t count; | |
210 | size_t total_size; | |
f24c4d47 AB |
211 | struct page **pages; |
212 | phys_addr_t *phys; | |
3fabd628 AB |
213 | size_t page_bytes_remain; |
214 | }; | |
215 | ||
216 | int __efi_capsule_setup_info(struct capsule_info *cap_info); | |
217 | ||
1da177e4 LT |
218 | /* |
219 | * Types and defines for Time Services | |
220 | */ | |
221 | #define EFI_TIME_ADJUST_DAYLIGHT 0x1 | |
222 | #define EFI_TIME_IN_DAYLIGHT 0x2 | |
223 | #define EFI_UNSPECIFIED_TIMEZONE 0x07ff | |
224 | ||
225 | typedef struct { | |
226 | u16 year; | |
227 | u8 month; | |
228 | u8 day; | |
229 | u8 hour; | |
230 | u8 minute; | |
231 | u8 second; | |
232 | u8 pad1; | |
233 | u32 nanosecond; | |
234 | s16 timezone; | |
235 | u8 daylight; | |
236 | u8 pad2; | |
237 | } efi_time_t; | |
238 | ||
239 | typedef struct { | |
240 | u32 resolution; | |
241 | u32 accuracy; | |
242 | u8 sets_to_zero; | |
243 | } efi_time_cap_t; | |
244 | ||
8166ec09 | 245 | typedef union efi_boot_services efi_boot_services_t; |
33b6d034 | 246 | |
1da177e4 LT |
247 | /* |
248 | * Types and defines for EFI ResetSystem | |
249 | */ | |
250 | #define EFI_RESET_COLD 0 | |
251 | #define EFI_RESET_WARM 1 | |
252 | #define EFI_RESET_SHUTDOWN 2 | |
253 | ||
254 | /* | |
255 | * EFI Runtime Services table | |
256 | */ | |
257 | #define EFI_RUNTIME_SERVICES_SIGNATURE ((u64)0x5652453544e5552ULL) | |
258 | #define EFI_RUNTIME_SERVICES_REVISION 0x00010000 | |
259 | ||
677703ce MF |
260 | typedef struct { |
261 | efi_table_hdr_t hdr; | |
262 | u32 get_time; | |
263 | u32 set_time; | |
264 | u32 get_wakeup_time; | |
265 | u32 set_wakeup_time; | |
266 | u32 set_virtual_address_map; | |
267 | u32 convert_pointer; | |
268 | u32 get_variable; | |
269 | u32 get_next_variable; | |
270 | u32 set_variable; | |
271 | u32 get_next_high_mono_count; | |
272 | u32 reset_system; | |
273 | u32 update_capsule; | |
274 | u32 query_capsule_caps; | |
275 | u32 query_variable_info; | |
276 | } efi_runtime_services_32_t; | |
277 | ||
1da177e4 LT |
278 | typedef efi_status_t efi_get_time_t (efi_time_t *tm, efi_time_cap_t *tc); |
279 | typedef efi_status_t efi_set_time_t (efi_time_t *tm); | |
280 | typedef efi_status_t efi_get_wakeup_time_t (efi_bool_t *enabled, efi_bool_t *pending, | |
281 | efi_time_t *tm); | |
282 | typedef efi_status_t efi_set_wakeup_time_t (efi_bool_t enabled, efi_time_t *tm); | |
283 | typedef efi_status_t efi_get_variable_t (efi_char16_t *name, efi_guid_t *vendor, u32 *attr, | |
284 | unsigned long *data_size, void *data); | |
285 | typedef efi_status_t efi_get_next_variable_t (unsigned long *name_size, efi_char16_t *name, | |
286 | efi_guid_t *vendor); | |
287 | typedef efi_status_t efi_set_variable_t (efi_char16_t *name, efi_guid_t *vendor, | |
f7a2d73f | 288 | u32 attr, unsigned long data_size, |
1da177e4 LT |
289 | void *data); |
290 | typedef efi_status_t efi_get_next_high_mono_count_t (u32 *count); | |
291 | typedef void efi_reset_system_t (int reset_type, efi_status_t status, | |
292 | unsigned long data_size, efi_char16_t *data); | |
293 | typedef efi_status_t efi_set_virtual_address_map_t (unsigned long memory_map_size, | |
294 | unsigned long descriptor_size, | |
295 | u32 descriptor_version, | |
296 | efi_memory_desc_t *virtual_map); | |
3b370237 MG |
297 | typedef efi_status_t efi_query_variable_info_t(u32 attr, |
298 | u64 *storage_space, | |
299 | u64 *remaining_space, | |
300 | u64 *max_variable_size); | |
301 | typedef efi_status_t efi_update_capsule_t(efi_capsule_header_t **capsules, | |
302 | unsigned long count, | |
303 | unsigned long sg_list); | |
304 | typedef efi_status_t efi_query_capsule_caps_t(efi_capsule_header_t **capsules, | |
305 | unsigned long count, | |
306 | u64 *max_size, | |
307 | int *reset_type); | |
ca0e30dc AB |
308 | typedef efi_status_t efi_query_variable_store_t(u32 attributes, |
309 | unsigned long size, | |
310 | bool nonblocking); | |
1da177e4 | 311 | |
1786e830 AB |
312 | typedef union { |
313 | struct { | |
8f24f8c2 AB |
314 | efi_table_hdr_t hdr; |
315 | efi_get_time_t __efiapi *get_time; | |
316 | efi_set_time_t __efiapi *set_time; | |
317 | efi_get_wakeup_time_t __efiapi *get_wakeup_time; | |
318 | efi_set_wakeup_time_t __efiapi *set_wakeup_time; | |
319 | efi_set_virtual_address_map_t __efiapi *set_virtual_address_map; | |
320 | void *convert_pointer; | |
321 | efi_get_variable_t __efiapi *get_variable; | |
322 | efi_get_next_variable_t __efiapi *get_next_variable; | |
323 | efi_set_variable_t __efiapi *set_variable; | |
324 | efi_get_next_high_mono_count_t __efiapi *get_next_high_mono_count; | |
325 | efi_reset_system_t __efiapi *reset_system; | |
326 | efi_update_capsule_t __efiapi *update_capsule; | |
327 | efi_query_capsule_caps_t __efiapi *query_capsule_caps; | |
328 | efi_query_variable_info_t __efiapi *query_variable_info; | |
1786e830 AB |
329 | }; |
330 | efi_runtime_services_32_t mixed_mode; | |
c4c39c70 AB |
331 | } efi_runtime_services_t; |
332 | ||
022ee6c5 AB |
333 | void efi_native_runtime_setup(void); |
334 | ||
1da177e4 | 335 | /* |
54fd11fe PJ |
336 | * EFI Configuration Table and GUID definitions |
337 | * | |
7fb2b43c IM |
338 | * These are all defined in a single line to make them easier to |
339 | * grep for and to see them at a glance - while still having a | |
340 | * similar structure to the definitions in the spec. | |
341 | * | |
342 | * Here's how they are structured: | |
54fd11fe PJ |
343 | * |
344 | * GUID: 12345678-1234-1234-1234-123456789012 | |
345 | * Spec: | |
346 | * #define EFI_SOME_PROTOCOL_GUID \ | |
347 | * {0x12345678,0x1234,0x1234,\ | |
348 | * {0x12,0x34,0x12,0x34,0x56,0x78,0x90,0x12}} | |
349 | * Here: | |
7fb2b43c IM |
350 | * #define SOME_PROTOCOL_GUID EFI_GUID(0x12345678, 0x1234, 0x1234, 0x12, 0x34, 0x12, 0x34, 0x56, 0x78, 0x90, 0x12) |
351 | * ^ tabs ^extra space | |
352 | * | |
353 | * Note that the 'extra space' separates the values at the same place | |
354 | * where the UEFI SPEC breaks the line. | |
1da177e4 | 355 | */ |
7fb2b43c IM |
356 | #define NULL_GUID EFI_GUID(0x00000000, 0x0000, 0x0000, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00) |
357 | #define MPS_TABLE_GUID EFI_GUID(0xeb9d2d2f, 0x2d88, 0x11d3, 0x9a, 0x16, 0x00, 0x90, 0x27, 0x3f, 0xc1, 0x4d) | |
358 | #define ACPI_TABLE_GUID EFI_GUID(0xeb9d2d30, 0x2d88, 0x11d3, 0x9a, 0x16, 0x00, 0x90, 0x27, 0x3f, 0xc1, 0x4d) | |
359 | #define ACPI_20_TABLE_GUID EFI_GUID(0x8868e871, 0xe4f1, 0x11d3, 0xbc, 0x22, 0x00, 0x80, 0xc7, 0x3c, 0x88, 0x81) | |
360 | #define SMBIOS_TABLE_GUID EFI_GUID(0xeb9d2d31, 0x2d88, 0x11d3, 0x9a, 0x16, 0x00, 0x90, 0x27, 0x3f, 0xc1, 0x4d) | |
361 | #define SMBIOS3_TABLE_GUID EFI_GUID(0xf2fd1544, 0x9794, 0x4a2c, 0x99, 0x2e, 0xe5, 0xbb, 0xcf, 0x20, 0xe3, 0x94) | |
362 | #define SAL_SYSTEM_TABLE_GUID EFI_GUID(0xeb9d2d32, 0x2d88, 0x11d3, 0x9a, 0x16, 0x00, 0x90, 0x27, 0x3f, 0xc1, 0x4d) | |
363 | #define HCDP_TABLE_GUID EFI_GUID(0xf951938d, 0x620b, 0x42ef, 0x82, 0x79, 0xa8, 0x4b, 0x79, 0x61, 0x78, 0x98) | |
364 | #define UGA_IO_PROTOCOL_GUID EFI_GUID(0x61a4d49e, 0x6f68, 0x4f1b, 0xb9, 0x22, 0xa8, 0x6e, 0xed, 0x0b, 0x07, 0xa2) | |
365 | #define EFI_GLOBAL_VARIABLE_GUID EFI_GUID(0x8be4df61, 0x93ca, 0x11d2, 0xaa, 0x0d, 0x00, 0xe0, 0x98, 0x03, 0x2b, 0x8c) | |
366 | #define UV_SYSTEM_TABLE_GUID EFI_GUID(0x3b13a7d4, 0x633e, 0x11dd, 0x93, 0xec, 0xda, 0x25, 0x56, 0xd8, 0x95, 0x93) | |
367 | #define LINUX_EFI_CRASH_GUID EFI_GUID(0xcfc8fc79, 0xbe2e, 0x4ddc, 0x97, 0xf0, 0x9f, 0x98, 0xbf, 0xe2, 0x98, 0xa0) | |
368 | #define LOADED_IMAGE_PROTOCOL_GUID EFI_GUID(0x5b1b31a1, 0x9562, 0x11d2, 0x8e, 0x3f, 0x00, 0xa0, 0xc9, 0x69, 0x72, 0x3b) | |
369 | #define EFI_GRAPHICS_OUTPUT_PROTOCOL_GUID EFI_GUID(0x9042a9de, 0x23dc, 0x4a38, 0x96, 0xfb, 0x7a, 0xde, 0xd0, 0x80, 0x51, 0x6a) | |
370 | #define EFI_UGA_PROTOCOL_GUID EFI_GUID(0x982c298b, 0xf4fa, 0x41cb, 0xb8, 0x38, 0x77, 0xaa, 0x68, 0x8f, 0xb8, 0x39) | |
371 | #define EFI_PCI_IO_PROTOCOL_GUID EFI_GUID(0x4cf5b200, 0x68b8, 0x4ca5, 0x9e, 0xec, 0xb2, 0x3e, 0x3f, 0x50, 0x02, 0x9a) | |
372 | #define EFI_FILE_INFO_ID EFI_GUID(0x09576e92, 0x6d3f, 0x11d2, 0x8e, 0x39, 0x00, 0xa0, 0xc9, 0x69, 0x72, 0x3b) | |
373 | #define EFI_SYSTEM_RESOURCE_TABLE_GUID EFI_GUID(0xb122a263, 0x3661, 0x4f68, 0x99, 0x29, 0x78, 0xf8, 0xb0, 0xd6, 0x21, 0x80) | |
374 | #define EFI_FILE_SYSTEM_GUID EFI_GUID(0x964e5b22, 0x6459, 0x11d2, 0x8e, 0x39, 0x00, 0xa0, 0xc9, 0x69, 0x72, 0x3b) | |
375 | #define DEVICE_TREE_GUID EFI_GUID(0xb1b621d5, 0xf19c, 0x41a5, 0x83, 0x0b, 0xd9, 0x15, 0x2c, 0x69, 0xaa, 0xe0) | |
376 | #define EFI_PROPERTIES_TABLE_GUID EFI_GUID(0x880aaca3, 0x4adc, 0x4a04, 0x90, 0x79, 0xb7, 0x47, 0x34, 0x08, 0x25, 0xe5) | |
377 | #define EFI_RNG_PROTOCOL_GUID EFI_GUID(0x3152bca5, 0xeade, 0x433d, 0x86, 0x2e, 0xc0, 0x1c, 0xdc, 0x29, 0x1f, 0x44) | |
568bc4e8 | 378 | #define EFI_RNG_ALGORITHM_RAW EFI_GUID(0xe43176d7, 0xb6e8, 0x4827, 0xb7, 0x84, 0x7f, 0xfd, 0xc4, 0xb6, 0x85, 0x61) |
7fb2b43c IM |
379 | #define EFI_MEMORY_ATTRIBUTES_TABLE_GUID EFI_GUID(0xdcfa911d, 0x26eb, 0x469f, 0xa2, 0x20, 0x38, 0xb7, 0xdc, 0x46, 0x12, 0x20) |
380 | #define EFI_CONSOLE_OUT_DEVICE_GUID EFI_GUID(0xd3b36f2c, 0xd551, 0x11d4, 0x9a, 0x46, 0x00, 0x90, 0x27, 0x3f, 0xc1, 0x4d) | |
58c5475a | 381 | #define APPLE_PROPERTIES_PROTOCOL_GUID EFI_GUID(0x91bd12fe, 0xf6c3, 0x44fb, 0xa5, 0xb7, 0x51, 0x22, 0xab, 0x30, 0x3a, 0xe0) |
33b6d034 | 382 | #define EFI_TCG2_PROTOCOL_GUID EFI_GUID(0x607f766c, 0x7455, 0x42be, 0x93, 0x0b, 0xe4, 0xd7, 0x6d, 0xb2, 0x72, 0x0f) |
2931d526 AB |
383 | #define EFI_LOAD_FILE_PROTOCOL_GUID EFI_GUID(0x56ec3091, 0x954c, 0x11d2, 0x8e, 0x3f, 0x00, 0xa0, 0xc9, 0x69, 0x72, 0x3b) |
384 | #define EFI_LOAD_FILE2_PROTOCOL_GUID EFI_GUID(0x4006c0c1, 0xfcb3, 0x403e, 0x99, 0x6d, 0x4a, 0x6c, 0x87, 0x24, 0xe0, 0x6d) | |
fe4db90a | 385 | #define EFI_RT_PROPERTIES_TABLE_GUID EFI_GUID(0xeb66918a, 0x7eef, 0x402a, 0x84, 0x2e, 0x93, 0x1d, 0x21, 0xc3, 0x8a, 0xe9) |
fc372064 | 386 | |
e58910cd JB |
387 | #define EFI_IMAGE_SECURITY_DATABASE_GUID EFI_GUID(0xd719b2cb, 0x3d3a, 0x4596, 0xa3, 0xbc, 0xda, 0xd0, 0x0e, 0x67, 0x65, 0x6f) |
388 | #define EFI_SHIM_LOCK_GUID EFI_GUID(0x605dab50, 0xe046, 0x4300, 0xab, 0xb6, 0x3d, 0xd8, 0x10, 0xdd, 0x8b, 0x23) | |
389 | ||
5c126ba2 DH |
390 | #define EFI_CERT_SHA256_GUID EFI_GUID(0xc1c41626, 0x504c, 0x4092, 0xac, 0xa9, 0x41, 0xf9, 0x36, 0x93, 0x43, 0x28) |
391 | #define EFI_CERT_X509_GUID EFI_GUID(0xa5c059a1, 0x94e4, 0x4aa7, 0x87, 0xb5, 0xab, 0x15, 0x5c, 0x2b, 0xf0, 0x72) | |
392 | #define EFI_CERT_X509_SHA256_GUID EFI_GUID(0x3bd2a492, 0x96c0, 0x4079, 0xb4, 0x20, 0xfc, 0xf9, 0x8e, 0xf1, 0x03, 0xed) | |
393 | ||
801820be AB |
394 | /* |
395 | * This GUID is used to pass to the kernel proper the struct screen_info | |
396 | * structure that was populated by the stub based on the GOP protocol instance | |
397 | * associated with ConOut | |
398 | */ | |
7fb2b43c | 399 | #define LINUX_EFI_ARM_SCREEN_INFO_TABLE_GUID EFI_GUID(0xe03fc20a, 0x85dc, 0x406e, 0xb9, 0x0e, 0x4a, 0xb5, 0x02, 0x37, 0x1d, 0x95) |
2a55280a | 400 | #define LINUX_EFI_ARM_CPU_STATE_TABLE_GUID EFI_GUID(0xef79e4aa, 0x3c3d, 0x4989, 0xb9, 0x02, 0x07, 0xa9, 0x43, 0xe5, 0x50, 0xd2) |
7fb2b43c | 401 | #define LINUX_EFI_LOADER_ENTRY_GUID EFI_GUID(0x4a67b082, 0x0a4c, 0x41cf, 0xb6, 0xc7, 0x44, 0x0b, 0x29, 0xbb, 0x8c, 0x4f) |
63625988 | 402 | #define LINUX_EFI_RANDOM_SEED_TABLE_GUID EFI_GUID(0x1ce1e5bc, 0x7ceb, 0x42f2, 0x81, 0xe5, 0x8a, 0xad, 0xf1, 0x80, 0xf5, 0x7b) |
33b6d034 | 403 | #define LINUX_EFI_TPM_EVENT_LOG_GUID EFI_GUID(0xb7799cb0, 0xeca2, 0x4943, 0x96, 0x67, 0x1f, 0xae, 0x07, 0xb7, 0x47, 0xfa) |
c46f3405 | 404 | #define LINUX_EFI_TPM_FINAL_LOG_GUID EFI_GUID(0x1e2ed096, 0x30e2, 0x4254, 0xbd, 0x89, 0x86, 0x3b, 0xbe, 0xf8, 0x23, 0x25) |
71e0940d | 405 | #define LINUX_EFI_MEMRESERVE_TABLE_GUID EFI_GUID(0x888eb0c6, 0x8ede, 0x4ff5, 0xa8, 0xf0, 0x9a, 0xee, 0x5c, 0xb9, 0x77, 0xc2) |
ec93fc37 | 406 | #define LINUX_EFI_INITRD_MEDIA_GUID EFI_GUID(0x5568e427, 0x68fc, 0x4f3d, 0xac, 0x74, 0xca, 0x55, 0x52, 0x31, 0xcc, 0x68) |
58c90902 | 407 | #define LINUX_EFI_MOK_VARIABLE_TABLE_GUID EFI_GUID(0xc451ed2b, 0x9694, 0x45d3, 0xba, 0xba, 0xed, 0x9f, 0x89, 0x88, 0xa3, 0x89) |
06f7d4a1 | 408 | |
1c5fecb6 N |
409 | /* OEM GUIDs */ |
410 | #define DELLEMC_EFI_RCI2_TABLE_GUID EFI_GUID(0x2d9f28a2, 0xa886, 0x456a, 0x97, 0xa8, 0xf1, 0x1e, 0xf2, 0x4f, 0xf4, 0x55) | |
2f70ddb1 | 411 | #define AMD_SEV_MEM_ENCRYPT_GUID EFI_GUID(0x0cf29b71, 0x9e51, 0x433a, 0xa3, 0xb7, 0x81, 0xf3, 0xab, 0x16, 0xb8, 0x75) |
1c5fecb6 | 412 | |
1adbfa35 OJ |
413 | typedef struct { |
414 | efi_guid_t guid; | |
415 | u64 table; | |
416 | } efi_config_table_64_t; | |
417 | ||
418 | typedef struct { | |
419 | efi_guid_t guid; | |
420 | u32 table; | |
421 | } efi_config_table_32_t; | |
422 | ||
1786e830 AB |
423 | typedef union { |
424 | struct { | |
425 | efi_guid_t guid; | |
f958efe9 | 426 | void *table; |
1786e830 AB |
427 | }; |
428 | efi_config_table_32_t mixed_mode; | |
1da177e4 LT |
429 | } efi_config_table_t; |
430 | ||
272686bf LL |
431 | typedef struct { |
432 | efi_guid_t guid; | |
272686bf | 433 | unsigned long *ptr; |
4e9a0f73 | 434 | const char name[16]; |
272686bf LL |
435 | } efi_config_table_type_t; |
436 | ||
1da177e4 | 437 | #define EFI_SYSTEM_TABLE_SIGNATURE ((u64)0x5453595320494249ULL) |
1da177e4 | 438 | |
3b370237 MG |
439 | #define EFI_2_30_SYSTEM_TABLE_REVISION ((2 << 16) | (30)) |
440 | #define EFI_2_20_SYSTEM_TABLE_REVISION ((2 << 16) | (20)) | |
441 | #define EFI_2_10_SYSTEM_TABLE_REVISION ((2 << 16) | (10)) | |
442 | #define EFI_2_00_SYSTEM_TABLE_REVISION ((2 << 16) | (00)) | |
443 | #define EFI_1_10_SYSTEM_TABLE_REVISION ((1 << 16) | (10)) | |
444 | #define EFI_1_02_SYSTEM_TABLE_REVISION ((1 << 16) | (02)) | |
445 | ||
1adbfa35 OJ |
446 | typedef struct { |
447 | efi_table_hdr_t hdr; | |
448 | u64 fw_vendor; /* physical addr of CHAR16 vendor string */ | |
449 | u32 fw_revision; | |
450 | u32 __pad1; | |
451 | u64 con_in_handle; | |
452 | u64 con_in; | |
453 | u64 con_out_handle; | |
454 | u64 con_out; | |
455 | u64 stderr_handle; | |
456 | u64 stderr; | |
457 | u64 runtime; | |
458 | u64 boottime; | |
459 | u32 nr_tables; | |
460 | u32 __pad2; | |
461 | u64 tables; | |
462 | } efi_system_table_64_t; | |
463 | ||
464 | typedef struct { | |
465 | efi_table_hdr_t hdr; | |
466 | u32 fw_vendor; /* physical addr of CHAR16 vendor string */ | |
467 | u32 fw_revision; | |
468 | u32 con_in_handle; | |
469 | u32 con_in; | |
470 | u32 con_out_handle; | |
471 | u32 con_out; | |
472 | u32 stderr_handle; | |
473 | u32 stderr; | |
474 | u32 runtime; | |
475 | u32 boottime; | |
476 | u32 nr_tables; | |
477 | u32 tables; | |
478 | } efi_system_table_32_t; | |
479 | ||
9b47c527 | 480 | typedef union efi_simple_text_input_protocol efi_simple_text_input_protocol_t; |
960a8d01 AB |
481 | typedef union efi_simple_text_output_protocol efi_simple_text_output_protocol_t; |
482 | ||
1786e830 AB |
483 | typedef union { |
484 | struct { | |
485 | efi_table_hdr_t hdr; | |
486 | unsigned long fw_vendor; /* physical addr of CHAR16 vendor string */ | |
487 | u32 fw_revision; | |
488 | unsigned long con_in_handle; | |
9b47c527 | 489 | efi_simple_text_input_protocol_t *con_in; |
1786e830 | 490 | unsigned long con_out_handle; |
960a8d01 | 491 | efi_simple_text_output_protocol_t *con_out; |
1786e830 AB |
492 | unsigned long stderr_handle; |
493 | unsigned long stderr; | |
494 | efi_runtime_services_t *runtime; | |
495 | efi_boot_services_t *boottime; | |
496 | unsigned long nr_tables; | |
497 | unsigned long tables; | |
498 | }; | |
499 | efi_system_table_32_t mixed_mode; | |
1da177e4 LT |
500 | } efi_system_table_t; |
501 | ||
9479c7ce MF |
502 | /* |
503 | * Architecture independent structure for describing a memory map for the | |
1db91035 DW |
504 | * benefit of efi_memmap_init_early(), and for passing context between |
505 | * efi_memmap_alloc() and efi_memmap_install(). | |
9479c7ce MF |
506 | */ |
507 | struct efi_memory_map_data { | |
508 | phys_addr_t phys_map; | |
509 | unsigned long size; | |
510 | unsigned long desc_version; | |
511 | unsigned long desc_size; | |
26c0e44a | 512 | unsigned long flags; |
9479c7ce MF |
513 | }; |
514 | ||
1da177e4 | 515 | struct efi_memory_map { |
44511fb9 | 516 | phys_addr_t phys_map; |
7ae65fd3 MT |
517 | void *map; |
518 | void *map_end; | |
1da177e4 LT |
519 | int nr_map; |
520 | unsigned long desc_version; | |
7ae65fd3 | 521 | unsigned long desc_size; |
26c0e44a | 522 | #define EFI_MEMMAP_LATE (1UL << 0) |
1db91035 DW |
523 | #define EFI_MEMMAP_MEMBLOCK (1UL << 1) |
524 | #define EFI_MEMMAP_SLAB (1UL << 2) | |
26c0e44a | 525 | unsigned long flags; |
1da177e4 LT |
526 | }; |
527 | ||
60863c0d MF |
528 | struct efi_mem_range { |
529 | struct range range; | |
530 | u64 attribute; | |
1da177e4 LT |
531 | }; |
532 | ||
bf924863 AB |
533 | typedef struct { |
534 | u32 version; | |
535 | u32 length; | |
536 | u64 memory_protection_attribute; | |
537 | } efi_properties_table_t; | |
538 | ||
539 | #define EFI_PROPERTIES_TABLE_VERSION 0x00010000 | |
540 | #define EFI_PROPERTIES_RUNTIME_MEMORY_PROTECTION_NON_EXECUTABLE_PE_DATA 0x1 | |
541 | ||
fe4db90a AB |
542 | typedef struct { |
543 | u16 version; | |
544 | u16 length; | |
545 | u32 runtime_services_supported; | |
546 | } efi_rt_properties_table_t; | |
547 | ||
548 | #define EFI_RT_PROPERTIES_TABLE_VERSION 0x1 | |
549 | ||
b2c99e3c BH |
550 | #define EFI_INVALID_TABLE_ADDR (~0UL) |
551 | ||
a604af07 AB |
552 | typedef struct { |
553 | u32 version; | |
554 | u32 num_entries; | |
555 | u32 desc_size; | |
556 | u32 reserved; | |
557 | efi_memory_desc_t entry[0]; | |
558 | } efi_memory_attributes_table_t; | |
559 | ||
5c126ba2 DH |
560 | typedef struct { |
561 | efi_guid_t signature_owner; | |
562 | u8 signature_data[]; | |
563 | } efi_signature_data_t; | |
564 | ||
565 | typedef struct { | |
566 | efi_guid_t signature_type; | |
567 | u32 signature_list_size; | |
568 | u32 signature_header_size; | |
569 | u32 signature_size; | |
570 | u8 signature_header[]; | |
571 | /* efi_signature_data_t signatures[][] */ | |
572 | } efi_signature_list_t; | |
573 | ||
574 | typedef u8 efi_sha256_hash_t[32]; | |
575 | ||
576 | typedef struct { | |
577 | efi_sha256_hash_t to_be_signed_hash; | |
578 | efi_time_t time_of_revocation; | |
579 | } efi_cert_x509_sha256_t; | |
580 | ||
badc6198 TL |
581 | extern unsigned long __ro_after_init efi_rng_seed; /* RNG Seed table */ |
582 | ||
1da177e4 LT |
583 | /* |
584 | * All runtime access to EFI goes through this structure: | |
585 | */ | |
586 | extern struct efi { | |
59f2a619 | 587 | const efi_runtime_services_t *runtime; /* EFI runtime services table */ |
fd268304 | 588 | unsigned int runtime_version; /* Runtime services version */ |
96a3dd3d | 589 | unsigned int runtime_supported_mask; |
fd268304 AB |
590 | |
591 | unsigned long acpi; /* ACPI table (IA64 ext 0.71) */ | |
592 | unsigned long acpi20; /* ACPI table (ACPI 2.0) */ | |
593 | unsigned long smbios; /* SMBIOS table (32 bit entry point) */ | |
594 | unsigned long smbios3; /* SMBIOS table (64 bit entry point) */ | |
595 | unsigned long esrt; /* ESRT table */ | |
596 | unsigned long tpm_log; /* TPM2 Event Log table */ | |
597 | unsigned long tpm_final_log; /* TPM2 Final Events Log table */ | |
58c90902 | 598 | unsigned long mokvar_table; /* MOK variable config table */ |
fd268304 AB |
599 | |
600 | efi_get_time_t *get_time; | |
601 | efi_set_time_t *set_time; | |
602 | efi_get_wakeup_time_t *get_wakeup_time; | |
603 | efi_set_wakeup_time_t *set_wakeup_time; | |
604 | efi_get_variable_t *get_variable; | |
605 | efi_get_next_variable_t *get_next_variable; | |
606 | efi_set_variable_t *set_variable; | |
607 | efi_set_variable_t *set_variable_nonblocking; | |
608 | efi_query_variable_info_t *query_variable_info; | |
609 | efi_query_variable_info_t *query_variable_info_nonblocking; | |
610 | efi_update_capsule_t *update_capsule; | |
611 | efi_query_capsule_caps_t *query_capsule_caps; | |
612 | efi_get_next_high_mono_count_t *get_next_high_mono_count; | |
613 | efi_reset_system_t *reset_system; | |
614 | ||
615 | struct efi_memory_map memmap; | |
616 | unsigned long flags; | |
1da177e4 LT |
617 | } efi; |
618 | ||
f65b8132 EH |
619 | #define EFI_RT_SUPPORTED_GET_TIME 0x0001 |
620 | #define EFI_RT_SUPPORTED_SET_TIME 0x0002 | |
96a3dd3d AB |
621 | #define EFI_RT_SUPPORTED_GET_WAKEUP_TIME 0x0004 |
622 | #define EFI_RT_SUPPORTED_SET_WAKEUP_TIME 0x0008 | |
623 | #define EFI_RT_SUPPORTED_GET_VARIABLE 0x0010 | |
624 | #define EFI_RT_SUPPORTED_GET_NEXT_VARIABLE_NAME 0x0020 | |
625 | #define EFI_RT_SUPPORTED_SET_VARIABLE 0x0040 | |
626 | #define EFI_RT_SUPPORTED_SET_VIRTUAL_ADDRESS_MAP 0x0080 | |
627 | #define EFI_RT_SUPPORTED_CONVERT_POINTER 0x0100 | |
628 | #define EFI_RT_SUPPORTED_GET_NEXT_HIGH_MONOTONIC_COUNT 0x0200 | |
629 | #define EFI_RT_SUPPORTED_RESET_SYSTEM 0x0400 | |
630 | #define EFI_RT_SUPPORTED_UPDATE_CAPSULE 0x0800 | |
631 | #define EFI_RT_SUPPORTED_QUERY_CAPSULE_CAPABILITIES 0x1000 | |
632 | #define EFI_RT_SUPPORTED_QUERY_VARIABLE_INFO 0x2000 | |
633 | ||
634 | #define EFI_RT_SUPPORTED_ALL 0x3fff | |
635 | ||
636 | #define EFI_RT_SUPPORTED_TIME_SERVICES 0x000f | |
637 | #define EFI_RT_SUPPORTED_VARIABLE_SERVICES 0x0070 | |
638 | ||
7e904a91 SP |
639 | extern struct mm_struct efi_mm; |
640 | ||
1da177e4 LT |
641 | static inline int |
642 | efi_guidcmp (efi_guid_t left, efi_guid_t right) | |
643 | { | |
644 | return memcmp(&left, &right, sizeof (efi_guid_t)); | |
645 | } | |
646 | ||
647 | static inline char * | |
26e02272 | 648 | efi_guid_to_str(efi_guid_t *guid, char *out) |
1da177e4 | 649 | { |
925ede0b | 650 | sprintf(out, "%pUl", guid->b); |
1da177e4 LT |
651 | return out; |
652 | } | |
653 | ||
654 | extern void efi_init (void); | |
2c547f9d | 655 | #ifdef CONFIG_EFI |
1da177e4 | 656 | extern void efi_enter_virtual_mode (void); /* switch EFI to virtual mode, if possible */ |
2c547f9d AK |
657 | #else |
658 | static inline void efi_enter_virtual_mode (void) {} | |
659 | #endif | |
78510792 | 660 | #ifdef CONFIG_X86 |
ca0e30dc AB |
661 | extern efi_status_t efi_query_variable_store(u32 attributes, |
662 | unsigned long size, | |
663 | bool nonblocking); | |
78510792 | 664 | #else |
a6e4d5a0 | 665 | |
ca0e30dc AB |
666 | static inline efi_status_t efi_query_variable_store(u32 attributes, |
667 | unsigned long size, | |
668 | bool nonblocking) | |
a6e4d5a0 MF |
669 | { |
670 | return EFI_SUCCESS; | |
671 | } | |
78510792 | 672 | #endif |
7bc90e01 | 673 | extern void __iomem *efi_lookup_mapped_addr(u64 phys_addr); |
9479c7ce | 674 | |
1db91035 DW |
675 | extern int __init efi_memmap_alloc(unsigned int num_entries, |
676 | struct efi_memory_map_data *data); | |
484a418d DW |
677 | extern void __efi_memmap_free(u64 phys, unsigned long size, |
678 | unsigned long flags); | |
9479c7ce | 679 | extern int __init efi_memmap_init_early(struct efi_memory_map_data *data); |
dca0f971 | 680 | extern int __init efi_memmap_init_late(phys_addr_t addr, unsigned long size); |
9479c7ce | 681 | extern void __init efi_memmap_unmap(void); |
1db91035 | 682 | extern int __init efi_memmap_install(struct efi_memory_map_data *data); |
60863c0d MF |
683 | extern int __init efi_memmap_split_count(efi_memory_desc_t *md, |
684 | struct range *range); | |
685 | extern void __init efi_memmap_insert(struct efi_memory_map *old_memmap, | |
686 | void *buf, struct efi_mem_range *mem); | |
9479c7ce | 687 | |
3846c158 | 688 | #ifdef CONFIG_EFI_ESRT |
0bb54905 | 689 | extern void __init efi_esrt_init(void); |
3846c158 PJ |
690 | #else |
691 | static inline void efi_esrt_init(void) { } | |
692 | #endif | |
06c0bd93 AB |
693 | extern int efi_config_parse_tables(const efi_config_table_t *config_tables, |
694 | int count, | |
695 | const efi_config_table_type_t *arch_tables); | |
14fb4209 AB |
696 | extern int efi_systab_check_header(const efi_table_hdr_t *systab_hdr, |
697 | int min_major_version); | |
698 | extern void efi_systab_report_header(const efi_table_hdr_t *systab_hdr, | |
699 | unsigned long fw_vendor); | |
1da177e4 | 700 | extern u64 efi_get_iobase (void); |
f99afd08 | 701 | extern int efi_mem_type(unsigned long phys_addr); |
1da177e4 | 702 | extern u64 efi_mem_attributes (unsigned long phys_addr); |
32e62c63 | 703 | extern u64 efi_mem_attribute (unsigned long phys_addr, unsigned long size); |
1da177e4 | 704 | extern int __init efi_uart_console_only (void); |
0bb54905 PJ |
705 | extern u64 efi_mem_desc_end(efi_memory_desc_t *md); |
706 | extern int efi_mem_desc_lookup(u64 phys_addr, efi_memory_desc_t *out_md); | |
816e7612 | 707 | extern void efi_mem_reserve(phys_addr_t addr, u64 size); |
a23d3bb0 | 708 | extern int efi_mem_reserve_persistent(phys_addr_t addr, u64 size); |
1da177e4 | 709 | extern void efi_initialize_iomem_resources(struct resource *code_resource, |
00bf4098 | 710 | struct resource *data_resource, struct resource *bss_resource); |
3b2e4b4c | 711 | extern u64 efi_get_fdt_params(struct efi_memory_map_data *data); |
0bb54905 | 712 | extern struct kobject *efi_kobj; |
1da177e4 | 713 | |
44be28e9 | 714 | extern int efi_reboot_quirk_mode; |
0c5ed61a MF |
715 | extern bool efi_poweroff_required(void); |
716 | ||
0f96a99d TI |
717 | #ifdef CONFIG_EFI_FAKE_MEMMAP |
718 | extern void __init efi_fake_memmap(void); | |
719 | #else | |
720 | static inline void efi_fake_memmap(void) { } | |
721 | #endif | |
722 | ||
a17e809e AB |
723 | extern unsigned long efi_mem_attr_table; |
724 | ||
10f0d2f5 AB |
725 | /* |
726 | * efi_memattr_perm_setter - arch specific callback function passed into | |
727 | * efi_memattr_apply_permissions() that updates the | |
728 | * mapping permissions described by the second | |
729 | * argument in the page tables referred to by the | |
730 | * first argument. | |
731 | */ | |
732 | typedef int (*efi_memattr_perm_setter)(struct mm_struct *, efi_memory_desc_t *); | |
733 | ||
734 | extern int efi_memattr_init(void); | |
735 | extern int efi_memattr_apply_permissions(struct mm_struct *mm, | |
736 | efi_memattr_perm_setter fn); | |
737 | ||
02e43c2d BH |
738 | /* |
739 | * efi_early_memdesc_ptr - get the n-th EFI memmap descriptor | |
740 | * @map: the start of efi memmap | |
741 | * @desc_size: the size of space for each EFI memmap descriptor | |
742 | * @n: the index of efi memmap descriptor | |
743 | * | |
744 | * EFI boot service provides the GetMemoryMap() function to get a copy of the | |
745 | * current memory map which is an array of memory descriptors, each of | |
746 | * which describes a contiguous block of memory. It also gets the size of the | |
747 | * map, and the size of each descriptor, etc. | |
748 | * | |
749 | * Note that per section 6.2 of UEFI Spec 2.6 Errata A, the returned size of | |
750 | * each descriptor might not be equal to sizeof(efi_memory_memdesc_t), | |
751 | * since efi_memory_memdesc_t may be extended in the future. Thus the OS | |
752 | * MUST use the returned size of the descriptor to find the start of each | |
753 | * efi_memory_memdesc_t in the memory map array. This should only be used | |
754 | * during bootup since for_each_efi_memory_desc_xxx() is available after the | |
755 | * kernel initializes the EFI subsystem to set up struct efi_memory_map. | |
756 | */ | |
757 | #define efi_early_memdesc_ptr(map, desc_size, n) \ | |
758 | (efi_memory_desc_t *)((void *)(map) + ((n) * (desc_size))) | |
759 | ||
e885cd80 | 760 | /* Iterate through an efi_memory_map */ |
78ce248f | 761 | #define for_each_efi_memory_desc_in_map(m, md) \ |
e885cd80 | 762 | for ((md) = (m)->map; \ |
d4c4fed0 | 763 | (md) && ((void *)(md) + (m)->desc_size) <= (m)->map_end; \ |
e885cd80 MS |
764 | (md) = (void *)(md) + (m)->desc_size) |
765 | ||
78ce248f MF |
766 | /** |
767 | * for_each_efi_memory_desc - iterate over descriptors in efi.memmap | |
768 | * @md: the efi_memory_desc_t * iterator | |
769 | * | |
770 | * Once the loop finishes @md must not be accessed. | |
771 | */ | |
772 | #define for_each_efi_memory_desc(md) \ | |
884f4f66 | 773 | for_each_efi_memory_desc_in_map(&efi.memmap, md) |
78ce248f | 774 | |
98d2a6ca LE |
775 | /* |
776 | * Format an EFI memory descriptor's type and attributes to a user-provided | |
777 | * character buffer, as per snprintf(), and return the buffer. | |
778 | */ | |
779 | char * __init efi_md_typeattr_format(char *buf, size_t size, | |
780 | const efi_memory_desc_t *md); | |
781 | ||
0bc9ae39 DH |
782 | |
783 | typedef void (*efi_element_handler_t)(const char *source, | |
784 | const void *element_data, | |
785 | size_t element_size); | |
786 | extern int __init parse_efi_signature_list( | |
787 | const char *source, | |
788 | const void *data, size_t size, | |
789 | efi_element_handler_t (*get_handler_for_guid)(const efi_guid_t *)); | |
790 | ||
1da177e4 LT |
791 | /** |
792 | * efi_range_is_wc - check the WC bit on an address range | |
793 | * @start: starting kvirt address | |
794 | * @len: length of range | |
795 | * | |
796 | * Consult the EFI memory map and make sure it's ok to set this range WC. | |
797 | * Returns true or false. | |
798 | */ | |
799 | static inline int efi_range_is_wc(unsigned long start, unsigned long len) | |
800 | { | |
986a80d5 | 801 | unsigned long i; |
1da177e4 LT |
802 | |
803 | for (i = 0; i < len; i += (1UL << EFI_PAGE_SHIFT)) { | |
804 | unsigned long paddr = __pa(start + i); | |
805 | if (!(efi_mem_attributes(paddr) & EFI_MEMORY_WC)) | |
806 | return 0; | |
807 | } | |
808 | /* The range checked out */ | |
809 | return 1; | |
810 | } | |
811 | ||
812 | #ifdef CONFIG_EFI_PCDP | |
813 | extern int __init efi_setup_pcdp_console(char *); | |
814 | #endif | |
815 | ||
816 | /* | |
83e68189 MF |
817 | * We play games with efi_enabled so that the compiler will, if |
818 | * possible, remove EFI-related code altogether. | |
1da177e4 | 819 | */ |
83e68189 | 820 | #define EFI_BOOT 0 /* Were we booted from EFI? */ |
83e68189 MF |
821 | #define EFI_CONFIG_TABLES 2 /* Can we use EFI config tables? */ |
822 | #define EFI_RUNTIME_SERVICES 3 /* Can we use runtime services? */ | |
823 | #define EFI_MEMMAP 4 /* Can we use EFI memory map? */ | |
824 | #define EFI_64BIT 5 /* Is the firmware 64-bit? */ | |
9f27bc54 DK |
825 | #define EFI_PARAVIRT 6 /* Access is via a paravirt interface */ |
826 | #define EFI_ARCH_1 7 /* First arch-specific bit */ | |
fed6cefe | 827 | #define EFI_DBG 8 /* Print additional debug info at runtime */ |
a1041713 | 828 | #define EFI_NX_PE_DATA 9 /* Can runtime data regions be mapped non-executable? */ |
a19ebf59 | 829 | #define EFI_MEM_ATTR 10 /* Did firmware publish an EFI_MEMORY_ATTRIBUTES table? */ |
b617c526 | 830 | #define EFI_MEM_NO_SOFT_RESERVE 11 /* Is the kernel configured to ignore soft reservations? */ |
0e72a6a3 | 831 | #define EFI_PRESERVE_BS_REGIONS 12 /* Are EFI boot-services memory segments available? */ |
83e68189 | 832 | |
1da177e4 | 833 | #ifdef CONFIG_EFI |
3e909599 MF |
834 | /* |
835 | * Test whether the above EFI_* bits are enabled. | |
836 | */ | |
837 | static inline bool efi_enabled(int feature) | |
838 | { | |
839 | return test_bit(feature, &efi.flags) != 0; | |
840 | } | |
8562c99c | 841 | extern void efi_reboot(enum reboot_mode reboot_mode, const char *__unused); |
b617c526 DW |
842 | |
843 | bool __pure __efi_soft_reserve_enabled(void); | |
844 | ||
845 | static inline bool __pure efi_soft_reserve_enabled(void) | |
846 | { | |
847 | return IS_ENABLED(CONFIG_EFI_SOFT_RESERVE) | |
848 | && __efi_soft_reserve_enabled(); | |
849 | } | |
96a3dd3d AB |
850 | |
851 | static inline bool efi_rt_services_supported(unsigned int mask) | |
852 | { | |
853 | return (efi.runtime_supported_mask & mask) == mask; | |
854 | } | |
1da177e4 | 855 | #else |
3e909599 | 856 | static inline bool efi_enabled(int feature) |
83e68189 | 857 | { |
3e909599 | 858 | return false; |
83e68189 | 859 | } |
8562c99c MF |
860 | static inline void |
861 | efi_reboot(enum reboot_mode reboot_mode, const char *__unused) {} | |
87615a34 | 862 | |
b617c526 DW |
863 | static inline bool efi_soft_reserve_enabled(void) |
864 | { | |
865 | return false; | |
96a3dd3d AB |
866 | } |
867 | ||
868 | static inline bool efi_rt_services_supported(unsigned int mask) | |
869 | { | |
870 | return false; | |
b617c526 | 871 | } |
1da177e4 LT |
872 | #endif |
873 | ||
806b0351 MF |
874 | extern int efi_status_to_err(efi_status_t status); |
875 | ||
1da177e4 LT |
876 | /* |
877 | * Variable Attributes | |
878 | */ | |
879 | #define EFI_VARIABLE_NON_VOLATILE 0x0000000000000001 | |
880 | #define EFI_VARIABLE_BOOTSERVICE_ACCESS 0x0000000000000002 | |
881 | #define EFI_VARIABLE_RUNTIME_ACCESS 0x0000000000000004 | |
41b3254c MG |
882 | #define EFI_VARIABLE_HARDWARE_ERROR_RECORD 0x0000000000000008 |
883 | #define EFI_VARIABLE_AUTHENTICATED_WRITE_ACCESS 0x0000000000000010 | |
884 | #define EFI_VARIABLE_TIME_BASED_AUTHENTICATED_WRITE_ACCESS 0x0000000000000020 | |
885 | #define EFI_VARIABLE_APPEND_WRITE 0x0000000000000040 | |
886 | ||
f65b8132 | 887 | #define EFI_VARIABLE_MASK (EFI_VARIABLE_NON_VOLATILE | \ |
41b3254c MG |
888 | EFI_VARIABLE_BOOTSERVICE_ACCESS | \ |
889 | EFI_VARIABLE_RUNTIME_ACCESS | \ | |
890 | EFI_VARIABLE_HARDWARE_ERROR_RECORD | \ | |
891 | EFI_VARIABLE_AUTHENTICATED_WRITE_ACCESS | \ | |
892 | EFI_VARIABLE_TIME_BASED_AUTHENTICATED_WRITE_ACCESS | \ | |
893 | EFI_VARIABLE_APPEND_WRITE) | |
e14ab23d MF |
894 | /* |
895 | * Length of a GUID string (strlen("aaaaaaaa-bbbb-cccc-dddd-eeeeeeeeeeee")) | |
896 | * not including trailing NUL | |
897 | */ | |
ba7e34b1 | 898 | #define EFI_VARIABLE_GUID_LEN UUID_STRING_LEN |
e14ab23d | 899 | |
1da177e4 LT |
900 | /* |
901 | * EFI Device Path information | |
902 | */ | |
903 | #define EFI_DEV_HW 0x01 | |
904 | #define EFI_DEV_PCI 1 | |
905 | #define EFI_DEV_PCCARD 2 | |
906 | #define EFI_DEV_MEM_MAPPED 3 | |
907 | #define EFI_DEV_VENDOR 4 | |
908 | #define EFI_DEV_CONTROLLER 5 | |
909 | #define EFI_DEV_ACPI 0x02 | |
910 | #define EFI_DEV_BASIC_ACPI 1 | |
911 | #define EFI_DEV_EXPANDED_ACPI 2 | |
912 | #define EFI_DEV_MSG 0x03 | |
913 | #define EFI_DEV_MSG_ATAPI 1 | |
914 | #define EFI_DEV_MSG_SCSI 2 | |
915 | #define EFI_DEV_MSG_FC 3 | |
916 | #define EFI_DEV_MSG_1394 4 | |
917 | #define EFI_DEV_MSG_USB 5 | |
918 | #define EFI_DEV_MSG_USB_CLASS 15 | |
919 | #define EFI_DEV_MSG_I20 6 | |
920 | #define EFI_DEV_MSG_MAC 11 | |
921 | #define EFI_DEV_MSG_IPV4 12 | |
922 | #define EFI_DEV_MSG_IPV6 13 | |
923 | #define EFI_DEV_MSG_INFINIBAND 9 | |
924 | #define EFI_DEV_MSG_UART 14 | |
925 | #define EFI_DEV_MSG_VENDOR 10 | |
926 | #define EFI_DEV_MEDIA 0x04 | |
927 | #define EFI_DEV_MEDIA_HARD_DRIVE 1 | |
928 | #define EFI_DEV_MEDIA_CDROM 2 | |
929 | #define EFI_DEV_MEDIA_VENDOR 3 | |
930 | #define EFI_DEV_MEDIA_FILE 4 | |
931 | #define EFI_DEV_MEDIA_PROTOCOL 5 | |
932 | #define EFI_DEV_BIOS_BOOT 0x05 | |
933 | #define EFI_DEV_END_PATH 0x7F | |
934 | #define EFI_DEV_END_PATH2 0xFF | |
935 | #define EFI_DEV_END_INSTANCE 0x01 | |
936 | #define EFI_DEV_END_ENTIRE 0xFF | |
937 | ||
938 | struct efi_generic_dev_path { | |
db8952e7 AB |
939 | u8 type; |
940 | u8 sub_type; | |
941 | u16 length; | |
942 | } __packed; | |
943 | ||
944 | struct efi_acpi_dev_path { | |
945 | struct efi_generic_dev_path header; | |
946 | u32 hid; | |
947 | u32 uid; | |
948 | } __packed; | |
949 | ||
950 | struct efi_pci_dev_path { | |
951 | struct efi_generic_dev_path header; | |
952 | u8 fn; | |
953 | u8 dev; | |
954 | } __packed; | |
955 | ||
956 | struct efi_vendor_dev_path { | |
957 | struct efi_generic_dev_path header; | |
958 | efi_guid_t vendorguid; | |
959 | u8 vendordata[]; | |
960 | } __packed; | |
1da177e4 | 961 | |
46cd4b75 | 962 | struct efi_dev_path { |
46cd4b75 | 963 | union { |
db8952e7 AB |
964 | struct efi_generic_dev_path header; |
965 | struct efi_acpi_dev_path acpi; | |
966 | struct efi_pci_dev_path pci; | |
967 | struct efi_vendor_dev_path vendor; | |
46cd4b75 | 968 | }; |
db8952e7 | 969 | } __packed; |
46cd4b75 | 970 | |
db8952e7 AB |
971 | struct device *efi_get_device_by_path(const struct efi_dev_path **node, |
972 | size_t *len); | |
46cd4b75 | 973 | |
4a3575fd HY |
974 | static inline void memrange_efi_to_native(u64 *addr, u64 *npages) |
975 | { | |
976 | *npages = PFN_UP(*addr + (*npages<<EFI_PAGE_SHIFT)) - PFN_DOWN(*addr); | |
977 | *addr &= PAGE_MASK; | |
978 | } | |
979 | ||
4fc756bd MW |
980 | /* |
981 | * EFI Variable support. | |
982 | * | |
983 | * Different firmware drivers can expose their EFI-like variables using | |
984 | * the following. | |
985 | */ | |
986 | ||
987 | struct efivar_operations { | |
988 | efi_get_variable_t *get_variable; | |
989 | efi_get_next_variable_t *get_next_variable; | |
990 | efi_set_variable_t *set_variable; | |
70d2a3cf | 991 | efi_set_variable_t *set_variable_nonblocking; |
a6e4d5a0 | 992 | efi_query_variable_store_t *query_variable_store; |
4fc756bd MW |
993 | }; |
994 | ||
995 | struct efivars { | |
4fc756bd | 996 | struct kset *kset; |
605e70c7 | 997 | struct kobject *kobject; |
4fc756bd MW |
998 | const struct efivar_operations *ops; |
999 | }; | |
1000 | ||
e14ab23d MF |
1001 | /* |
1002 | * The maximum size of VariableName + Data = 1024 | |
1003 | * Therefore, it's reasonable to save that much | |
1004 | * space in each part of the structure, | |
1005 | * and we use a page for reading/writing. | |
1006 | */ | |
1007 | ||
a5d92ad3 MF |
1008 | #define EFI_VAR_NAME_LEN 1024 |
1009 | ||
e14ab23d | 1010 | struct efi_variable { |
a5d92ad3 | 1011 | efi_char16_t VariableName[EFI_VAR_NAME_LEN/sizeof(efi_char16_t)]; |
e14ab23d MF |
1012 | efi_guid_t VendorGuid; |
1013 | unsigned long DataSize; | |
1014 | __u8 Data[1024]; | |
1015 | efi_status_t Status; | |
1016 | __u32 Attributes; | |
1017 | } __attribute__((packed)); | |
1018 | ||
1019 | struct efivar_entry { | |
1020 | struct efi_variable var; | |
1021 | struct list_head list; | |
1022 | struct kobject kobj; | |
e0d59733 SA |
1023 | bool scanning; |
1024 | bool deleting; | |
e14ab23d MF |
1025 | }; |
1026 | ||
04851772 MF |
1027 | static inline void |
1028 | efivar_unregister(struct efivar_entry *var) | |
1029 | { | |
1030 | kobject_put(&var->kobj); | |
1031 | } | |
1032 | ||
e14ab23d | 1033 | int efivars_register(struct efivars *efivars, |
4fc756bd | 1034 | const struct efivar_operations *ops, |
e14ab23d MF |
1035 | struct kobject *kobject); |
1036 | int efivars_unregister(struct efivars *efivars); | |
1037 | struct kobject *efivars_kobject(void); | |
1038 | ||
f88814cc | 1039 | int efivar_supports_writes(void); |
e14ab23d | 1040 | int efivar_init(int (*func)(efi_char16_t *, efi_guid_t, unsigned long, void *), |
1cfd6316 | 1041 | void *data, bool duplicates, struct list_head *head); |
e14ab23d | 1042 | |
21b3ddd3 SC |
1043 | int efivar_entry_add(struct efivar_entry *entry, struct list_head *head); |
1044 | int efivar_entry_remove(struct efivar_entry *entry); | |
e14ab23d MF |
1045 | |
1046 | int __efivar_entry_delete(struct efivar_entry *entry); | |
1047 | int efivar_entry_delete(struct efivar_entry *entry); | |
1048 | ||
e14ab23d | 1049 | int efivar_entry_size(struct efivar_entry *entry, unsigned long *size); |
8a415b8c MF |
1050 | int __efivar_entry_get(struct efivar_entry *entry, u32 *attributes, |
1051 | unsigned long *size, void *data); | |
e14ab23d MF |
1052 | int efivar_entry_get(struct efivar_entry *entry, u32 *attributes, |
1053 | unsigned long *size, void *data); | |
1054 | int efivar_entry_set(struct efivar_entry *entry, u32 attributes, | |
1055 | unsigned long size, void *data, struct list_head *head); | |
1056 | int efivar_entry_set_get_size(struct efivar_entry *entry, u32 attributes, | |
1057 | unsigned long *size, void *data, bool *set); | |
1058 | int efivar_entry_set_safe(efi_char16_t *name, efi_guid_t vendor, u32 attributes, | |
1059 | bool block, unsigned long size, void *data); | |
1060 | ||
21b3ddd3 | 1061 | int efivar_entry_iter_begin(void); |
e14ab23d MF |
1062 | void efivar_entry_iter_end(void); |
1063 | ||
1064 | int __efivar_entry_iter(int (*func)(struct efivar_entry *, void *), | |
1065 | struct list_head *head, void *data, | |
1066 | struct efivar_entry **prev); | |
1067 | int efivar_entry_iter(int (*func)(struct efivar_entry *, void *), | |
1068 | struct list_head *head, void *data); | |
1069 | ||
1070 | struct efivar_entry *efivar_entry_find(efi_char16_t *name, efi_guid_t guid, | |
1071 | struct list_head *head, bool remove); | |
1072 | ||
8282f5d9 PJ |
1073 | bool efivar_validate(efi_guid_t vendor, efi_char16_t *var_name, u8 *data, |
1074 | unsigned long data_size); | |
ed8b0de5 PJ |
1075 | bool efivar_variable_is_removable(efi_guid_t vendor, const char *name, |
1076 | size_t len); | |
e14ab23d | 1077 | |
e0a6aa30 | 1078 | #if IS_ENABLED(CONFIG_EFI_CAPSULE_LOADER) |
f0133f3c MF |
1079 | extern bool efi_capsule_pending(int *reset_type); |
1080 | ||
1081 | extern int efi_capsule_supported(efi_guid_t guid, u32 flags, | |
1082 | size_t size, int *reset); | |
1083 | ||
1084 | extern int efi_capsule_update(efi_capsule_header_t *capsule, | |
2a457fb3 | 1085 | phys_addr_t *pages); |
e0a6aa30 AB |
1086 | #else |
1087 | static inline bool efi_capsule_pending(int *reset_type) { return false; } | |
1088 | #endif | |
4fc756bd | 1089 | |
926172d4 DY |
1090 | #ifdef CONFIG_EFI_RUNTIME_MAP |
1091 | int efi_runtime_map_init(struct kobject *); | |
6a2c20e7 VG |
1092 | int efi_get_runtime_map_size(void); |
1093 | int efi_get_runtime_map_desc_size(void); | |
1094 | int efi_runtime_map_copy(void *buf, size_t bufsz); | |
926172d4 DY |
1095 | #else |
1096 | static inline int efi_runtime_map_init(struct kobject *kobj) | |
1097 | { | |
1098 | return 0; | |
1099 | } | |
1100 | ||
6a2c20e7 VG |
1101 | static inline int efi_get_runtime_map_size(void) |
1102 | { | |
1103 | return 0; | |
1104 | } | |
1105 | ||
1106 | static inline int efi_get_runtime_map_desc_size(void) | |
1107 | { | |
1108 | return 0; | |
1109 | } | |
1110 | ||
1111 | static inline int efi_runtime_map_copy(void *buf, size_t bufsz) | |
1112 | { | |
1113 | return 0; | |
1114 | } | |
1115 | ||
926172d4 DY |
1116 | #endif |
1117 | ||
0082517f JHP |
1118 | #ifdef CONFIG_EFI |
1119 | extern bool efi_runtime_disabled(void); | |
1120 | #else | |
1121 | static inline bool efi_runtime_disabled(void) { return true; } | |
1122 | #endif | |
1123 | ||
80e75596 | 1124 | extern void efi_call_virt_check_flags(unsigned long flags, const char *call); |
13b210dd | 1125 | extern unsigned long efi_call_virt_save_flags(void); |
80e75596 | 1126 | |
de8cb458 DH |
1127 | enum efi_secureboot_mode { |
1128 | efi_secureboot_mode_unset, | |
1129 | efi_secureboot_mode_unknown, | |
1130 | efi_secureboot_mode_disabled, | |
1131 | efi_secureboot_mode_enabled, | |
1132 | }; | |
e1ac4b24 CL |
1133 | |
1134 | static inline | |
1135 | enum efi_secureboot_mode efi_get_secureboot_mode(efi_get_variable_t *get_var) | |
1136 | { | |
1137 | u8 secboot, setupmode = 0; | |
1138 | efi_status_t status; | |
1139 | unsigned long size; | |
1140 | ||
1141 | size = sizeof(secboot); | |
1142 | status = get_var(L"SecureBoot", &EFI_GLOBAL_VARIABLE_GUID, NULL, &size, | |
1143 | &secboot); | |
1144 | if (status == EFI_NOT_FOUND) | |
1145 | return efi_secureboot_mode_disabled; | |
1146 | if (status != EFI_SUCCESS) | |
1147 | return efi_secureboot_mode_unknown; | |
1148 | ||
1149 | size = sizeof(setupmode); | |
1150 | get_var(L"SetupMode", &EFI_GLOBAL_VARIABLE_GUID, NULL, &size, &setupmode); | |
1151 | if (secboot == 0 || setupmode == 1) | |
1152 | return efi_secureboot_mode_disabled; | |
1153 | return efi_secureboot_mode_enabled; | |
1154 | } | |
de8cb458 | 1155 | |
f0df68d5 HG |
1156 | #ifdef CONFIG_EFI_EMBEDDED_FIRMWARE |
1157 | void efi_check_for_embedded_firmwares(void); | |
1158 | #else | |
1159 | static inline void efi_check_for_embedded_firmwares(void) { } | |
1160 | #endif | |
1161 | ||
cd33a5c1 | 1162 | efi_status_t efi_random_get_seed(void); |
0d959814 | 1163 | |
80e75596 AT |
1164 | /* |
1165 | * Arch code can implement the following three template macros, avoiding | |
1166 | * reptition for the void/non-void return cases of {__,}efi_call_virt(): | |
1167 | * | |
1168 | * * arch_efi_call_virt_setup() | |
1169 | * | |
1170 | * Sets up the environment for the call (e.g. switching page tables, | |
1171 | * allowing kernel-mode use of floating point, if required). | |
1172 | * | |
1173 | * * arch_efi_call_virt() | |
1174 | * | |
1175 | * Performs the call. The last expression in the macro must be the call | |
1176 | * itself, allowing the logic to be shared by the void and non-void | |
1177 | * cases. | |
1178 | * | |
1179 | * * arch_efi_call_virt_teardown() | |
1180 | * | |
1181 | * Restores the usual kernel environment once the call has returned. | |
1182 | */ | |
1183 | ||
1184 | #define efi_call_virt_pointer(p, f, args...) \ | |
1185 | ({ \ | |
1186 | efi_status_t __s; \ | |
1187 | unsigned long __flags; \ | |
1188 | \ | |
1189 | arch_efi_call_virt_setup(); \ | |
1190 | \ | |
13b210dd | 1191 | __flags = efi_call_virt_save_flags(); \ |
80e75596 AT |
1192 | __s = arch_efi_call_virt(p, f, args); \ |
1193 | efi_call_virt_check_flags(__flags, __stringify(f)); \ | |
1194 | \ | |
1195 | arch_efi_call_virt_teardown(); \ | |
1196 | \ | |
1197 | __s; \ | |
1198 | }) | |
1199 | ||
1200 | #define __efi_call_virt_pointer(p, f, args...) \ | |
1201 | ({ \ | |
1202 | unsigned long __flags; \ | |
1203 | \ | |
1204 | arch_efi_call_virt_setup(); \ | |
1205 | \ | |
13b210dd | 1206 | __flags = efi_call_virt_save_flags(); \ |
80e75596 AT |
1207 | arch_efi_call_virt(p, f, args); \ |
1208 | efi_call_virt_check_flags(__flags, __stringify(f)); \ | |
1209 | \ | |
1210 | arch_efi_call_virt_teardown(); \ | |
1211 | }) | |
1212 | ||
c2ceb5fd AB |
1213 | #define EFI_RANDOM_SEED_SIZE 64U |
1214 | ||
63625988 AB |
1215 | struct linux_efi_random_seed { |
1216 | u32 size; | |
1217 | u8 bits[]; | |
1218 | }; | |
1219 | ||
33b6d034 TW |
1220 | struct linux_efi_tpm_eventlog { |
1221 | u32 size; | |
166a2809 | 1222 | u32 final_events_preboot_size; |
33b6d034 TW |
1223 | u8 version; |
1224 | u8 log[]; | |
1225 | }; | |
1226 | ||
1227 | extern int efi_tpm_eventlog_init(void); | |
1228 | ||
c46f3405 MG |
1229 | struct efi_tcg2_final_events_table { |
1230 | u64 version; | |
1231 | u64 nr_events; | |
1232 | u8 events[]; | |
1233 | }; | |
1234 | extern int efi_tpm_final_log_size; | |
1235 | ||
1c5fecb6 N |
1236 | extern unsigned long rci2_table_phys; |
1237 | ||
3425d934 SP |
1238 | /* |
1239 | * efi_runtime_service() function identifiers. | |
1240 | * "NONE" is used by efi_recover_from_page_fault() to check if the page | |
1241 | * fault happened while executing an efi runtime service. | |
1242 | */ | |
9dbbedaa | 1243 | enum efi_rts_ids { |
5c418dc7 AR |
1244 | EFI_NONE, |
1245 | EFI_GET_TIME, | |
1246 | EFI_SET_TIME, | |
1247 | EFI_GET_WAKEUP_TIME, | |
1248 | EFI_SET_WAKEUP_TIME, | |
1249 | EFI_GET_VARIABLE, | |
1250 | EFI_GET_NEXT_VARIABLE, | |
1251 | EFI_SET_VARIABLE, | |
1252 | EFI_QUERY_VARIABLE_INFO, | |
1253 | EFI_GET_NEXT_HIGH_MONO_COUNT, | |
1254 | EFI_RESET_SYSTEM, | |
1255 | EFI_UPDATE_CAPSULE, | |
1256 | EFI_QUERY_CAPSULE_CAPS, | |
9dbbedaa SP |
1257 | }; |
1258 | ||
1259 | /* | |
1260 | * efi_runtime_work: Details of EFI Runtime Service work | |
1261 | * @arg<1-5>: EFI Runtime Service function arguments | |
1262 | * @status: Status of executing EFI Runtime Service | |
1263 | * @efi_rts_id: EFI Runtime Service function identifier | |
1264 | * @efi_rts_comp: Struct used for handling completions | |
1265 | */ | |
1266 | struct efi_runtime_work { | |
1267 | void *arg1; | |
1268 | void *arg2; | |
1269 | void *arg3; | |
1270 | void *arg4; | |
1271 | void *arg5; | |
1272 | efi_status_t status; | |
1273 | struct work_struct work; | |
1274 | enum efi_rts_ids efi_rts_id; | |
1275 | struct completion efi_rts_comp; | |
1276 | }; | |
1277 | ||
1278 | extern struct efi_runtime_work efi_rts_work; | |
1279 | ||
3eb420e7 SP |
1280 | /* Workqueue to queue EFI Runtime Services */ |
1281 | extern struct workqueue_struct *efi_rts_wq; | |
1282 | ||
71e0940d | 1283 | struct linux_efi_memreserve { |
5f0b0ecf AB |
1284 | int size; // allocated size of the array |
1285 | atomic_t count; // number of entries used | |
1286 | phys_addr_t next; // pa of next struct instance | |
1287 | struct { | |
1288 | phys_addr_t base; | |
1289 | phys_addr_t size; | |
29637951 | 1290 | } entry[]; |
71e0940d AB |
1291 | }; |
1292 | ||
80424b02 | 1293 | #define EFI_MEMRESERVE_COUNT(size) (((size) - sizeof(struct linux_efi_memreserve)) \ |
29637951 | 1294 | / sizeof_field(struct linux_efi_memreserve, entry[0])) |
80424b02 | 1295 | |
860f89e6 BT |
1296 | void __init efi_arch_mem_reserve(phys_addr_t addr, u64 size); |
1297 | ||
e8da08a0 BT |
1298 | char *efi_systab_show_arch(char *str); |
1299 | ||
58c90902 LS |
1300 | /* |
1301 | * The LINUX_EFI_MOK_VARIABLE_TABLE_GUID config table can be provided | |
1302 | * to the kernel by an EFI boot loader. The table contains a packed | |
1303 | * sequence of these entries, one for each named MOK variable. | |
1304 | * The sequence is terminated by an entry with a completely NULL | |
1305 | * name and 0 data size. | |
1306 | */ | |
1307 | struct efi_mokvar_table_entry { | |
1308 | char name[256]; | |
1309 | u64 data_size; | |
1310 | u8 data[]; | |
1311 | } __attribute((packed)); | |
1312 | ||
1313 | #ifdef CONFIG_LOAD_UEFI_KEYS | |
1314 | extern void __init efi_mokvar_table_init(void); | |
1315 | extern struct efi_mokvar_table_entry *efi_mokvar_entry_next( | |
1316 | struct efi_mokvar_table_entry **mokvar_entry); | |
1317 | extern struct efi_mokvar_table_entry *efi_mokvar_entry_find(const char *name); | |
1318 | #else | |
1319 | static inline void efi_mokvar_table_init(void) { } | |
1320 | static inline struct efi_mokvar_table_entry *efi_mokvar_entry_next( | |
1321 | struct efi_mokvar_table_entry **mokvar_entry) | |
1322 | { | |
1323 | return NULL; | |
1324 | } | |
1325 | static inline struct efi_mokvar_table_entry *efi_mokvar_entry_find( | |
1326 | const char *name) | |
1327 | { | |
1328 | return NULL; | |
1329 | } | |
1330 | #endif | |
1331 | ||
4bc5e64e JMC |
1332 | #ifdef CONFIG_SYSFB |
1333 | extern void efifb_setup_from_dmi(struct screen_info *si, const char *opt); | |
1334 | #else | |
1335 | static inline void efifb_setup_from_dmi(struct screen_info *si, const char *opt) { } | |
1336 | #endif | |
1337 | ||
1da177e4 | 1338 | #endif /* _LINUX_EFI_H */ |