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f739fcd8 | 1 | /* SPDX-License-Identifier: GPL-2.0+ */ |
cb149c66 AG |
2 | /* |
3 | * EFI application loader | |
4 | * | |
5 | * Copyright (c) 2016 Alexander Graf | |
cb149c66 AG |
6 | */ |
7 | ||
cd9e18de HS |
8 | #ifndef _EFI_LOADER_H |
9 | #define _EFI_LOADER_H 1 | |
10 | ||
bee91169 | 11 | #include <common.h> |
cb149c66 AG |
12 | #include <part_efi.h> |
13 | #include <efi_api.h> | |
bee91169 AG |
14 | |
15 | /* No need for efi loader support in SPL */ | |
16 | #if defined(CONFIG_EFI_LOADER) && !defined(CONFIG_SPL_BUILD) | |
17 | ||
cb149c66 AG |
18 | #include <linux/list.h> |
19 | ||
c160d2f5 RC |
20 | int __efi_entry_check(void); |
21 | int __efi_exit_check(void); | |
ae0bd3a9 | 22 | const char *__efi_nesting(void); |
af65db85 RC |
23 | const char *__efi_nesting_inc(void); |
24 | const char *__efi_nesting_dec(void); | |
c160d2f5 | 25 | |
a095aadf RC |
26 | /* |
27 | * Enter the u-boot world from UEFI: | |
28 | */ | |
bee91169 | 29 | #define EFI_ENTRY(format, ...) do { \ |
c160d2f5 | 30 | assert(__efi_entry_check()); \ |
af65db85 RC |
31 | debug("%sEFI: Entry %s(" format ")\n", __efi_nesting_inc(), \ |
32 | __func__, ##__VA_ARGS__); \ | |
bee91169 | 33 | } while(0) |
bee91169 | 34 | |
a095aadf RC |
35 | /* |
36 | * Exit the u-boot world back to UEFI: | |
37 | */ | |
804b1d73 | 38 | #define EFI_EXIT(ret) ({ \ |
c81883df | 39 | typeof(ret) _r = ret; \ |
af65db85 | 40 | debug("%sEFI: Exit: %s: %u\n", __efi_nesting_dec(), \ |
c81883df | 41 | __func__, (u32)((uintptr_t) _r & ~EFI_ERROR_MASK)); \ |
c160d2f5 RC |
42 | assert(__efi_exit_check()); \ |
43 | _r; \ | |
804b1d73 | 44 | }) |
bee91169 | 45 | |
a095aadf | 46 | /* |
ea630ce9 | 47 | * Call non-void UEFI function from u-boot and retrieve return value: |
a095aadf | 48 | */ |
ea630ce9 HS |
49 | #define EFI_CALL(exp) ({ \ |
50 | debug("%sEFI: Call: %s\n", __efi_nesting_inc(), #exp); \ | |
51 | assert(__efi_exit_check()); \ | |
52 | typeof(exp) _r = exp; \ | |
53 | assert(__efi_entry_check()); \ | |
54 | debug("%sEFI: %lu returned by %s\n", __efi_nesting_dec(), \ | |
55 | (unsigned long)((uintptr_t)_r & ~EFI_ERROR_MASK), #exp); \ | |
56 | _r; \ | |
57 | }) | |
58 | ||
59 | /* | |
60 | * Call void UEFI function from u-boot: | |
61 | */ | |
62 | #define EFI_CALL_VOID(exp) do { \ | |
af65db85 | 63 | debug("%sEFI: Call: %s\n", __efi_nesting_inc(), #exp); \ |
c160d2f5 | 64 | assert(__efi_exit_check()); \ |
a095aadf | 65 | exp; \ |
c160d2f5 | 66 | assert(__efi_entry_check()); \ |
af65db85 | 67 | debug("%sEFI: Return From: %s\n", __efi_nesting_dec(), #exp); \ |
a095aadf RC |
68 | } while(0) |
69 | ||
ae0bd3a9 | 70 | /* |
d5504144 | 71 | * Write an indented message with EFI prefix |
ae0bd3a9 | 72 | */ |
d5504144 HS |
73 | #define EFI_PRINT(format, ...) ({ \ |
74 | debug("%sEFI: " format, __efi_nesting(), \ | |
75 | ##__VA_ARGS__); \ | |
ae0bd3a9 HS |
76 | }) |
77 | ||
89aea436 AG |
78 | #ifdef CONFIG_SYS_CACHELINE_SIZE |
79 | #define EFI_CACHELINE_SIZE CONFIG_SYS_CACHELINE_SIZE | |
80 | #else | |
81 | /* Just use the greatest cache flush alignment requirement I'm aware of */ | |
82 | #define EFI_CACHELINE_SIZE 128 | |
83 | #endif | |
84 | ||
1fcb7ea2 HS |
85 | /* Key identifying current memory map */ |
86 | extern efi_uintn_t efi_memory_map_key; | |
87 | ||
50149ea3 | 88 | extern struct efi_runtime_services efi_runtime_services; |
bee91169 AG |
89 | extern struct efi_system_table systab; |
90 | ||
ebb4dd5b | 91 | extern struct efi_simple_text_output_protocol efi_con_out; |
91be9a77 | 92 | extern struct efi_simple_input_interface efi_con_in; |
ebb4dd5b | 93 | extern struct efi_console_control_protocol efi_console_control; |
cc5b7081 | 94 | extern const struct efi_device_path_to_text_protocol efi_device_path_to_text; |
e70f8dfa LL |
95 | /* implementation of the EFI_DEVICE_PATH_UTILITIES_PROTOCOL */ |
96 | extern const struct efi_device_path_utilities_protocol | |
97 | efi_device_path_utilities; | |
c1311ad4 | 98 | |
adae4313 RC |
99 | uint16_t *efi_dp_str(struct efi_device_path *dp); |
100 | ||
b3dd14b6 HS |
101 | /* GUID of the EFI_BLOCK_IO_PROTOCOL */ |
102 | extern const efi_guid_t efi_block_io_guid; | |
9975fe96 | 103 | extern const efi_guid_t efi_global_variable_guid; |
c1311ad4 | 104 | extern const efi_guid_t efi_guid_console_control; |
cb149c66 | 105 | extern const efi_guid_t efi_guid_device_path; |
f0959dbe HS |
106 | /* GUID of the EFI_DRIVER_BINDING_PROTOCOL */ |
107 | extern const efi_guid_t efi_guid_driver_binding_protocol; | |
a3a28f5f HS |
108 | /* event group ExitBootServices() invoked */ |
109 | extern const efi_guid_t efi_guid_event_group_exit_boot_services; | |
110 | /* event group SetVirtualAddressMap() invoked */ | |
111 | extern const efi_guid_t efi_guid_event_group_virtual_address_change; | |
112 | /* event group memory map changed */ | |
113 | extern const efi_guid_t efi_guid_event_group_memory_map_change; | |
114 | /* event group boot manager about to boot */ | |
115 | extern const efi_guid_t efi_guid_event_group_ready_to_boot; | |
116 | /* event group ResetSystem() invoked (before ExitBootServices) */ | |
117 | extern const efi_guid_t efi_guid_event_group_reset_system; | |
bc4f9133 HS |
118 | /* GUID of the device tree table */ |
119 | extern const efi_guid_t efi_guid_fdt; | |
cb149c66 | 120 | extern const efi_guid_t efi_guid_loaded_image; |
cc5b7081 | 121 | extern const efi_guid_t efi_guid_device_path_to_text_protocol; |
2a92080d RC |
122 | extern const efi_guid_t efi_simple_file_system_protocol_guid; |
123 | extern const efi_guid_t efi_file_info_guid; | |
9e6835e6 HS |
124 | /* GUID for file system information */ |
125 | extern const efi_guid_t efi_file_system_info_guid; | |
e70f8dfa | 126 | extern const efi_guid_t efi_guid_device_path_utilities_protocol; |
cb149c66 | 127 | |
50149ea3 AG |
128 | extern unsigned int __efi_runtime_start, __efi_runtime_stop; |
129 | extern unsigned int __efi_runtime_rel_start, __efi_runtime_rel_stop; | |
130 | ||
fe1599da HS |
131 | /* |
132 | * When a protocol is opened a open protocol info entry is created. | |
133 | * These are maintained in a list. | |
134 | */ | |
135 | struct efi_open_protocol_info_item { | |
136 | /* Link to the list of open protocol info entries of a protocol */ | |
137 | struct list_head link; | |
138 | struct efi_open_protocol_info_entry info; | |
139 | }; | |
140 | ||
bee91169 AG |
141 | /* |
142 | * When the UEFI payload wants to open a protocol on an object to get its | |
143 | * interface (usually a struct with callback functions), this struct maps the | |
fe1599da HS |
144 | * protocol GUID to the respective protocol interface |
145 | */ | |
bee91169 | 146 | struct efi_handler { |
69fb6b1a HS |
147 | /* Link to the list of protocols of a handle */ |
148 | struct list_head link; | |
bee91169 | 149 | const efi_guid_t *guid; |
b5349f74 | 150 | void *protocol_interface; |
fe1599da HS |
151 | /* Link to the list of open protocol info items */ |
152 | struct list_head open_infos; | |
bee91169 AG |
153 | }; |
154 | ||
155 | /* | |
156 | * UEFI has a poor man's OO model where one "object" can be polymorphic and have | |
157 | * multiple different protocols (classes) attached to it. | |
158 | * | |
159 | * This struct is the parent struct for all of our actual implementation objects | |
160 | * that can include it to make themselves an EFI object | |
161 | */ | |
162 | struct efi_object { | |
163 | /* Every UEFI object is part of a global object list */ | |
164 | struct list_head link; | |
69fb6b1a HS |
165 | /* The list of protocols */ |
166 | struct list_head protocols; | |
bee91169 AG |
167 | /* The object spawner can either use this for data or as identifier */ |
168 | void *handle; | |
169 | }; | |
170 | ||
c6841592 HS |
171 | /** |
172 | * struct efi_event | |
173 | * | |
43bce442 | 174 | * @link: Link to list of all events |
c6841592 HS |
175 | * @type: Type of event, see efi_create_event |
176 | * @notify_tpl: Task priority level of notifications | |
c6841592 HS |
177 | * @nofify_function: Function to call when the event is triggered |
178 | * @notify_context: Data to be passed to the notify function | |
b095f3c8 | 179 | * @group: Event group |
43bce442 HS |
180 | * @trigger_time: Period of the timer |
181 | * @trigger_next: Next time to trigger the timer | |
c6841592 | 182 | * @trigger_type: Type of timer, see efi_set_timer |
43bce442 HS |
183 | * @is_queued: The notification function is queued |
184 | * @is_signaled: The event occurred. The event is in the signaled state. | |
c6841592 HS |
185 | */ |
186 | struct efi_event { | |
43bce442 | 187 | struct list_head link; |
b521d29e | 188 | uint32_t type; |
152cade3 | 189 | efi_uintn_t notify_tpl; |
c6841592 HS |
190 | void (EFIAPI *notify_function)(struct efi_event *event, void *context); |
191 | void *notify_context; | |
b095f3c8 | 192 | const efi_guid_t *group; |
c6841592 HS |
193 | u64 trigger_next; |
194 | u64 trigger_time; | |
b521d29e | 195 | enum efi_timer_delay trigger_type; |
e190e897 HS |
196 | bool is_queued; |
197 | bool is_signaled; | |
c6841592 HS |
198 | }; |
199 | ||
bee91169 AG |
200 | /* This list contains all UEFI objects we know of */ |
201 | extern struct list_head efi_obj_list; | |
b095f3c8 HS |
202 | /* List of all events */ |
203 | extern struct list_head efi_events; | |
bee91169 | 204 | |
640adadf HS |
205 | /* Called by bootefi to initialize runtime */ |
206 | efi_status_t efi_initialize_system_table(void); | |
91be9a77 HS |
207 | /* Called by bootefi to make console interface available */ |
208 | int efi_console_register(void); | |
2a22d05d | 209 | /* Called by bootefi to make all disk storage accessible as EFI objects */ |
df9cf561 | 210 | efi_status_t efi_disk_register(void); |
64e4db0f HS |
211 | /* Create handles and protocols for the partitions of a block device */ |
212 | int efi_disk_create_partitions(efi_handle_t parent, struct blk_desc *desc, | |
213 | const char *if_typename, int diskid, | |
214 | const char *pdevname); | |
be8d3241 | 215 | /* Called by bootefi to make GOP (graphical) interface available */ |
80ea9b09 | 216 | efi_status_t efi_gop_register(void); |
0efe1bcf | 217 | /* Called by bootefi to make the network interface available */ |
075d425d | 218 | efi_status_t efi_net_register(void); |
b3d60900 | 219 | /* Called by bootefi to make the watchdog available */ |
d7b181d5 | 220 | efi_status_t efi_watchdog_register(void); |
e663b350 | 221 | /* Called by bootefi to make SMBIOS tables available */ |
86df34d4 BM |
222 | /** |
223 | * efi_acpi_register() - write out ACPI tables | |
224 | * | |
225 | * Called by bootefi to make ACPI tables available | |
226 | * | |
227 | * @return 0 if OK, -ENOMEM if no memory is available for the tables | |
228 | */ | |
229 | efi_status_t efi_acpi_register(void); | |
0864c565 SG |
230 | /** |
231 | * efi_smbios_register() - write out SMBIOS tables | |
232 | * | |
233 | * Called by bootefi to make SMBIOS tables available | |
234 | * | |
235 | * @return 0 if OK, -ENOMEM if no memory is available for the tables | |
236 | */ | |
7657152b | 237 | efi_status_t efi_smbios_register(void); |
0efe1bcf | 238 | |
2a92080d RC |
239 | struct efi_simple_file_system_protocol * |
240 | efi_fs_from_path(struct efi_device_path *fp); | |
241 | ||
0efe1bcf AG |
242 | /* Called by networking code to memorize the dhcp ack package */ |
243 | void efi_net_set_dhcp_ack(void *pkt, int len); | |
b3d60900 HS |
244 | /* Called by efi_set_watchdog_timer to reset the timer */ |
245 | efi_status_t efi_set_watchdog(unsigned long timeout); | |
0efe1bcf | 246 | |
bee91169 AG |
247 | /* Called from places to check whether a timer expired */ |
248 | void efi_timer_check(void); | |
249 | /* PE loader implementation */ | |
cb149c66 | 250 | void *efi_load_pe(void *efi, struct efi_loaded_image *loaded_image_info); |
bee91169 AG |
251 | /* Called once to store the pristine gd pointer */ |
252 | void efi_save_gd(void); | |
c160d2f5 RC |
253 | /* Special case handler for error/abort that just tries to dtrt to get |
254 | * back to u-boot world */ | |
bee91169 | 255 | void efi_restore_gd(void); |
50149ea3 AG |
256 | /* Call this to relocate the runtime section to an address space */ |
257 | void efi_runtime_relocate(ulong offset, struct efi_mem_desc *map); | |
0f4060eb | 258 | /* Call this to set the current device name */ |
c07ad7c0 | 259 | void efi_set_bootdev(const char *dev, const char *devnr, const char *path); |
44549d62 HS |
260 | /* Add a new object to the object list. */ |
261 | void efi_add_handle(struct efi_object *obj); | |
2edab5e2 | 262 | /* Create handle */ |
2074f700 | 263 | efi_status_t efi_create_handle(efi_handle_t *handle); |
678e03a0 HS |
264 | /* Delete handle */ |
265 | void efi_delete_handle(struct efi_object *obj); | |
1b68153a | 266 | /* Call this to validate a handle and find the EFI object for it */ |
2074f700 | 267 | struct efi_object *efi_search_obj(const efi_handle_t handle); |
3f79a2b5 | 268 | /* Find a protocol on a handle */ |
2074f700 | 269 | efi_status_t efi_search_protocol(const efi_handle_t handle, |
3f79a2b5 HS |
270 | const efi_guid_t *protocol_guid, |
271 | struct efi_handler **handler); | |
272 | /* Install new protocol on a handle */ | |
2074f700 HS |
273 | efi_status_t efi_add_protocol(const efi_handle_t handle, |
274 | const efi_guid_t *protocol, | |
3f79a2b5 HS |
275 | void *protocol_interface); |
276 | /* Delete protocol from a handle */ | |
2074f700 HS |
277 | efi_status_t efi_remove_protocol(const efi_handle_t handle, |
278 | const efi_guid_t *protocol, | |
3f79a2b5 HS |
279 | void *protocol_interface); |
280 | /* Delete all protocols from a handle */ | |
2074f700 | 281 | efi_status_t efi_remove_all_protocols(const efi_handle_t handle); |
49deb455 | 282 | /* Call this to create an event */ |
152cade3 | 283 | efi_status_t efi_create_event(uint32_t type, efi_uintn_t notify_tpl, |
49deb455 HS |
284 | void (EFIAPI *notify_function) ( |
285 | struct efi_event *event, | |
286 | void *context), | |
b095f3c8 HS |
287 | void *notify_context, efi_guid_t *group, |
288 | struct efi_event **event); | |
bfc72462 | 289 | /* Call this to set a timer */ |
b521d29e | 290 | efi_status_t efi_set_timer(struct efi_event *event, enum efi_timer_delay type, |
bfc72462 | 291 | uint64_t trigger_time); |
91be9a77 | 292 | /* Call this to signal an event */ |
9bc9664d | 293 | void efi_signal_event(struct efi_event *event, bool check_tpl); |
50149ea3 | 294 | |
2a92080d RC |
295 | /* open file system: */ |
296 | struct efi_simple_file_system_protocol *efi_simple_file_system( | |
297 | struct blk_desc *desc, int part, struct efi_device_path *dp); | |
298 | ||
299 | /* open file from device-path: */ | |
300 | struct efi_file_handle *efi_file_from_path(struct efi_device_path *fp); | |
301 | ||
302 | ||
5d00995c AG |
303 | /* Generic EFI memory allocator, call this to get memory */ |
304 | void *efi_alloc(uint64_t len, int memory_type); | |
305 | /* More specific EFI memory allocator, called by EFI payloads */ | |
f5a2a938 | 306 | efi_status_t efi_allocate_pages(int type, int memory_type, efi_uintn_t pages, |
5d00995c | 307 | uint64_t *memory); |
b61d857b | 308 | /* EFI memory free function. */ |
f5a2a938 | 309 | efi_status_t efi_free_pages(uint64_t memory, efi_uintn_t pages); |
ead1274b | 310 | /* EFI memory allocator for small allocations */ |
f5a2a938 | 311 | efi_status_t efi_allocate_pool(int pool_type, efi_uintn_t size, |
ead1274b | 312 | void **buffer); |
42417bc8 SB |
313 | /* EFI pool memory free function. */ |
314 | efi_status_t efi_free_pool(void *buffer); | |
5d00995c | 315 | /* Returns the EFI memory map */ |
f5a2a938 | 316 | efi_status_t efi_get_memory_map(efi_uintn_t *memory_map_size, |
5d00995c | 317 | struct efi_mem_desc *memory_map, |
f5a2a938 HS |
318 | efi_uintn_t *map_key, |
319 | efi_uintn_t *descriptor_size, | |
5d00995c AG |
320 | uint32_t *descriptor_version); |
321 | /* Adds a range into the EFI memory map */ | |
322 | uint64_t efi_add_memory_map(uint64_t start, uint64_t pages, int memory_type, | |
323 | bool overlap_only_ram); | |
05ef48a2 | 324 | /* Called by board init to initialize the EFI drivers */ |
038782a2 | 325 | efi_status_t efi_driver_init(void); |
5d00995c AG |
326 | /* Called by board init to initialize the EFI memory map */ |
327 | int efi_memory_init(void); | |
488bf12d AG |
328 | /* Adds new or overrides configuration table entry to the system table */ |
329 | efi_status_t efi_install_configuration_table(const efi_guid_t *guid, void *table); | |
56d92888 HS |
330 | /* Sets up a loaded image */ |
331 | efi_status_t efi_setup_loaded_image( | |
332 | struct efi_loaded_image *info, struct efi_object *obj, | |
333 | struct efi_device_path *device_path, | |
334 | struct efi_device_path *file_path); | |
9975fe96 RC |
335 | efi_status_t efi_load_image_from_path(struct efi_device_path *file_path, |
336 | void **buffer); | |
c9a63f44 HS |
337 | /* Print information about a loaded image */ |
338 | efi_status_t efi_print_image_info(struct efi_loaded_image *image, void *pc); | |
339 | /* Print information about all loaded images */ | |
340 | void efi_print_image_infos(void *pc); | |
5d00995c | 341 | |
51735ae0 AG |
342 | #ifdef CONFIG_EFI_LOADER_BOUNCE_BUFFER |
343 | extern void *efi_bounce_buffer; | |
344 | #define EFI_LOADER_BOUNCE_BUFFER_SIZE (64 * 1024 * 1024) | |
345 | #endif | |
346 | ||
b66c60dd RC |
347 | |
348 | struct efi_device_path *efi_dp_next(const struct efi_device_path *dp); | |
ff401d3f HS |
349 | int efi_dp_match(const struct efi_device_path *a, |
350 | const struct efi_device_path *b); | |
b66c60dd RC |
351 | struct efi_object *efi_dp_find_obj(struct efi_device_path *dp, |
352 | struct efi_device_path **rem); | |
f6dd3f35 HS |
353 | /* get size of the first device path instance excluding end node */ |
354 | efi_uintn_t efi_dp_instance_size(const struct efi_device_path *dp); | |
355 | /* size of multi-instance device path excluding end node */ | |
356 | efi_uintn_t efi_dp_size(const struct efi_device_path *dp); | |
b66c60dd RC |
357 | struct efi_device_path *efi_dp_dup(const struct efi_device_path *dp); |
358 | struct efi_device_path *efi_dp_append(const struct efi_device_path *dp1, | |
359 | const struct efi_device_path *dp2); | |
360 | struct efi_device_path *efi_dp_append_node(const struct efi_device_path *dp, | |
361 | const struct efi_device_path *node); | |
211314c1 HS |
362 | /* Create a device path node of given type, sub-type, length */ |
363 | struct efi_device_path *efi_dp_create_device_node(const u8 type, | |
364 | const u8 sub_type, | |
365 | const u16 length); | |
3acef5da HS |
366 | /* Append device path instance */ |
367 | struct efi_device_path *efi_dp_append_instance( | |
368 | const struct efi_device_path *dp, | |
369 | const struct efi_device_path *dpi); | |
370 | /* Get next device path instance */ | |
371 | struct efi_device_path *efi_dp_get_next_instance(struct efi_device_path **dp, | |
372 | efi_uintn_t *size); | |
373 | /* Check if a device path contains muliple instances */ | |
374 | bool efi_dp_is_multi_instance(const struct efi_device_path *dp); | |
b66c60dd RC |
375 | |
376 | struct efi_device_path *efi_dp_from_dev(struct udevice *dev); | |
377 | struct efi_device_path *efi_dp_from_part(struct blk_desc *desc, int part); | |
98d48bdf HS |
378 | /* Create a device node for a block device partition. */ |
379 | struct efi_device_path *efi_dp_part_node(struct blk_desc *desc, int part); | |
b66c60dd RC |
380 | struct efi_device_path *efi_dp_from_file(struct blk_desc *desc, int part, |
381 | const char *path); | |
382 | struct efi_device_path *efi_dp_from_eth(void); | |
bf19273e RC |
383 | struct efi_device_path *efi_dp_from_mem(uint32_t mem_type, |
384 | uint64_t start_address, | |
385 | uint64_t end_address); | |
65436f91 HS |
386 | /* Determine the last device path node that is not the end node. */ |
387 | const struct efi_device_path *efi_dp_last_node( | |
388 | const struct efi_device_path *dp); | |
04298686 HS |
389 | efi_status_t efi_dp_split_file_path(struct efi_device_path *full_path, |
390 | struct efi_device_path **device_path, | |
391 | struct efi_device_path **file_path); | |
b66c60dd RC |
392 | |
393 | #define EFI_DP_TYPE(_dp, _type, _subtype) \ | |
394 | (((_dp)->type == DEVICE_PATH_TYPE_##_type) && \ | |
395 | ((_dp)->sub_type == DEVICE_PATH_SUB_TYPE_##_subtype)) | |
396 | ||
0f4060eb | 397 | /* Convert strings from normal C strings to uEFI strings */ |
487d756f | 398 | static inline void ascii2unicode(u16 *unicode, const char *ascii) |
0f4060eb AG |
399 | { |
400 | while (*ascii) | |
401 | *(unicode++) = *(ascii++); | |
c412166d | 402 | *unicode = 0; |
0f4060eb AG |
403 | } |
404 | ||
3e094c59 RC |
405 | static inline int guidcmp(const efi_guid_t *g1, const efi_guid_t *g2) |
406 | { | |
407 | return memcmp(g1, g2, sizeof(efi_guid_t)); | |
408 | } | |
409 | ||
50149ea3 AG |
410 | /* |
411 | * Use these to indicate that your code / data should go into the EFI runtime | |
412 | * section and thus still be available when the OS is running | |
413 | */ | |
7e21fbca AG |
414 | #define __efi_runtime_data __attribute__ ((section (".data.efi_runtime"))) |
415 | #define __efi_runtime __attribute__ ((section (".text.efi_runtime"))) | |
bee91169 | 416 | |
80a4800e AG |
417 | /* Call this with mmio_ptr as the _pointer_ to a pointer to an MMIO region |
418 | * to make it available at runtime */ | |
22c793e6 | 419 | efi_status_t efi_add_runtime_mmio(void *mmio_ptr, u64 len); |
80a4800e AG |
420 | |
421 | /* Boards may provide the functions below to implement RTS functionality */ | |
422 | ||
3c63db9c | 423 | void __efi_runtime EFIAPI efi_reset_system( |
80a4800e AG |
424 | enum efi_reset_type reset_type, |
425 | efi_status_t reset_status, | |
426 | unsigned long data_size, void *reset_data); | |
22c793e6 HS |
427 | |
428 | /* Architecture specific initialization of the EFI subsystem */ | |
429 | efi_status_t efi_reset_system_init(void); | |
80a4800e | 430 | |
3c63db9c | 431 | efi_status_t __efi_runtime EFIAPI efi_get_time( |
80a4800e AG |
432 | struct efi_time *time, |
433 | struct efi_time_cap *capabilities); | |
14ad49d1 | 434 | efi_status_t efi_get_time_init(void); |
80a4800e | 435 | |
623b3a57 HS |
436 | #ifdef CONFIG_CMD_BOOTEFI_SELFTEST |
437 | /* | |
438 | * Entry point for the tests of the EFI API. | |
439 | * It is called by 'bootefi selftest' | |
440 | */ | |
441 | efi_status_t EFIAPI efi_selftest(efi_handle_t image_handle, | |
442 | struct efi_system_table *systab); | |
443 | #endif | |
444 | ||
45c66f9c HS |
445 | efi_status_t EFIAPI efi_get_variable(u16 *variable_name, efi_guid_t *vendor, |
446 | u32 *attributes, efi_uintn_t *data_size, | |
447 | void *data); | |
448 | efi_status_t EFIAPI efi_get_next_variable_name(efi_uintn_t *variable_name_size, | |
449 | u16 *variable_name, | |
450 | efi_guid_t *vendor); | |
451 | efi_status_t EFIAPI efi_set_variable(u16 *variable_name, efi_guid_t *vendor, | |
452 | u32 attributes, efi_uintn_t data_size, | |
453 | void *data); | |
ad644e7c | 454 | |
9975fe96 RC |
455 | void *efi_bootmgr_load(struct efi_device_path **device_path, |
456 | struct efi_device_path **file_path); | |
457 | ||
bee91169 AG |
458 | #else /* defined(EFI_LOADER) && !defined(CONFIG_SPL_BUILD) */ |
459 | ||
50149ea3 | 460 | /* Without CONFIG_EFI_LOADER we don't have a runtime section, stub it out */ |
3c63db9c AG |
461 | #define __efi_runtime_data |
462 | #define __efi_runtime | |
22c793e6 HS |
463 | static inline efi_status_t efi_add_runtime_mmio(void *mmio_ptr, u64 len) |
464 | { | |
465 | return EFI_SUCCESS; | |
466 | } | |
50149ea3 | 467 | |
bee91169 AG |
468 | /* No loader configured, stub out EFI_ENTRY */ |
469 | static inline void efi_restore_gd(void) { } | |
c07ad7c0 AG |
470 | static inline void efi_set_bootdev(const char *dev, const char *devnr, |
471 | const char *path) { } | |
0efe1bcf | 472 | static inline void efi_net_set_dhcp_ack(void *pkt, int len) { } |
c9a63f44 | 473 | static inline void efi_print_image_infos(void *pc) { } |
bee91169 | 474 | |
cd9e18de HS |
475 | #endif /* CONFIG_EFI_LOADER && !CONFIG_SPL_BUILD */ |
476 | ||
477 | #endif /* _EFI_LOADER_H */ |