1 /* SPDX-License-Identifier: GPL-2.0+ */
2 /*
3 * EFI application loader
4 *
5 * Copyright (c) 2016 Alexander Graf
6 */
7
8 #ifndef _EFI_LOADER_H
9 #define _EFI_LOADER_H 1
10
11 #include <common.h>
12 #include <part_efi.h>
13 #include <efi_api.h>
14
15 /* No need for efi loader support in SPL */
16 #if CONFIG_IS_ENABLED(EFI_LOADER)
17
18 #include <linux/list.h>
19
20 /* Maximum number of configuration tables */
21 #define EFI_MAX_CONFIGURATION_TABLES 16
22
23 /* GUID used by the root node */
24 #define U_BOOT_GUID \
25 EFI_GUID(0xe61d73b9, 0xa384, 0x4acc, \
26 0xae, 0xab, 0x82, 0xe8, 0x28, 0xf3, 0x62, 0x8b)
27
28 int __efi_entry_check(void);
29 int __efi_exit_check(void);
30 const char *__efi_nesting(void);
31 const char *__efi_nesting_inc(void);
32 const char *__efi_nesting_dec(void);
33
34 /*
35 * Enter the u-boot world from UEFI:
36 */
37 #define EFI_ENTRY(format, ...) do { \
38 assert(__efi_entry_check()); \
39 debug("%sEFI: Entry %s(" format ")\n", __efi_nesting_inc(), \
40 __func__, ##__VA_ARGS__); \
41 } while(0)
42
43 /*
44 * Exit the u-boot world back to UEFI:
45 */
46 #define EFI_EXIT(ret) ({ \
47 typeof(ret) _r = ret; \
48 debug("%sEFI: Exit: %s: %u\n", __efi_nesting_dec(), \
49 __func__, (u32)((uintptr_t) _r & ~EFI_ERROR_MASK)); \
50 assert(__efi_exit_check()); \
51 _r; \
52 })
53
54 /*
55 * Call non-void UEFI function from u-boot and retrieve return value:
56 */
57 #define EFI_CALL(exp) ({ \
58 debug("%sEFI: Call: %s\n", __efi_nesting_inc(), #exp); \
59 assert(__efi_exit_check()); \
60 typeof(exp) _r = exp; \
61 assert(__efi_entry_check()); \
62 debug("%sEFI: %lu returned by %s\n", __efi_nesting_dec(), \
63 (unsigned long)((uintptr_t)_r & ~EFI_ERROR_MASK), #exp); \
64 _r; \
65 })
66
67 /*
68 * Call void UEFI function from u-boot:
69 */
70 #define EFI_CALL_VOID(exp) do { \
71 debug("%sEFI: Call: %s\n", __efi_nesting_inc(), #exp); \
72 assert(__efi_exit_check()); \
73 exp; \
74 assert(__efi_entry_check()); \
75 debug("%sEFI: Return From: %s\n", __efi_nesting_dec(), #exp); \
76 } while(0)
77
78 /*
79 * Write an indented message with EFI prefix
80 */
81 #define EFI_PRINT(format, ...) ({ \
82 debug("%sEFI: " format, __efi_nesting(), \
83 ##__VA_ARGS__); \
84 })
85
86 #ifdef CONFIG_SYS_CACHELINE_SIZE
87 #define EFI_CACHELINE_SIZE CONFIG_SYS_CACHELINE_SIZE
88 #else
89 /* Just use the greatest cache flush alignment requirement I'm aware of */
90 #define EFI_CACHELINE_SIZE 128
91 #endif
92
93 /* Key identifying current memory map */
94 extern efi_uintn_t efi_memory_map_key;
95
96 extern struct efi_runtime_services efi_runtime_services;
97 extern struct efi_system_table systab;
98
99 extern struct efi_simple_text_output_protocol efi_con_out;
100 extern struct efi_simple_text_input_protocol efi_con_in;
101 extern struct efi_console_control_protocol efi_console_control;
102 extern const struct efi_device_path_to_text_protocol efi_device_path_to_text;
103 /* implementation of the EFI_DEVICE_PATH_UTILITIES_PROTOCOL */
104 extern const struct efi_device_path_utilities_protocol
105 efi_device_path_utilities;
106 /* Implementation of the EFI_UNICODE_COLLATION_PROTOCOL */
107 extern const struct efi_unicode_collation_protocol
108 efi_unicode_collation_protocol;
109 extern const struct efi_hii_config_routing_protocol efi_hii_config_routing;
110 extern const struct efi_hii_config_access_protocol efi_hii_config_access;
111 extern const struct efi_hii_database_protocol efi_hii_database;
112 extern const struct efi_hii_string_protocol efi_hii_string;
113
114 uint16_t *efi_dp_str(struct efi_device_path *dp);
115
116 /* GUID of the U-Boot root node */
117 extern const efi_guid_t efi_u_boot_guid;
118 /* GUID of the EFI_BLOCK_IO_PROTOCOL */
119 extern const efi_guid_t efi_block_io_guid;
120 extern const efi_guid_t efi_global_variable_guid;
121 extern const efi_guid_t efi_guid_console_control;
122 extern const efi_guid_t efi_guid_device_path;
123 /* GUID of the EFI_DRIVER_BINDING_PROTOCOL */
124 extern const efi_guid_t efi_guid_driver_binding_protocol;
125 /* event group ExitBootServices() invoked */
126 extern const efi_guid_t efi_guid_event_group_exit_boot_services;
127 /* event group SetVirtualAddressMap() invoked */
128 extern const efi_guid_t efi_guid_event_group_virtual_address_change;
129 /* event group memory map changed */
130 extern const efi_guid_t efi_guid_event_group_memory_map_change;
131 /* event group boot manager about to boot */
132 extern const efi_guid_t efi_guid_event_group_ready_to_boot;
133 /* event group ResetSystem() invoked (before ExitBootServices) */
134 extern const efi_guid_t efi_guid_event_group_reset_system;
135 /* GUID of the device tree table */
136 extern const efi_guid_t efi_guid_fdt;
137 extern const efi_guid_t efi_guid_loaded_image;
138 extern const efi_guid_t efi_guid_device_path_to_text_protocol;
139 extern const efi_guid_t efi_simple_file_system_protocol_guid;
140 extern const efi_guid_t efi_file_info_guid;
141 /* GUID for file system information */
142 extern const efi_guid_t efi_file_system_info_guid;
143 extern const efi_guid_t efi_guid_device_path_utilities_protocol;
144 /* GUID of the Unicode collation protocol */
145 extern const efi_guid_t efi_guid_unicode_collation_protocol;
146 extern const efi_guid_t efi_guid_hii_config_routing_protocol;
147 extern const efi_guid_t efi_guid_hii_config_access_protocol;
148 extern const efi_guid_t efi_guid_hii_database_protocol;
149 extern const efi_guid_t efi_guid_hii_string_protocol;
150
151 extern unsigned int __efi_runtime_start, __efi_runtime_stop;
152 extern unsigned int __efi_runtime_rel_start, __efi_runtime_rel_stop;
153
154 /*
155 * When a protocol is opened a open protocol info entry is created.
156 * These are maintained in a list.
157 */
158 struct efi_open_protocol_info_item {
159 /* Link to the list of open protocol info entries of a protocol */
160 struct list_head link;
161 struct efi_open_protocol_info_entry info;
162 };
163
164 /*
165 * When the UEFI payload wants to open a protocol on an object to get its
166 * interface (usually a struct with callback functions), this struct maps the
167 * protocol GUID to the respective protocol interface
168 */
169 struct efi_handler {
170 /* Link to the list of protocols of a handle */
171 struct list_head link;
172 const efi_guid_t *guid;
173 void *protocol_interface;
174 /* Link to the list of open protocol info items */
175 struct list_head open_infos;
176 };
177
178 /**
179 * struct efi_object - dereferenced EFI handle
180 *
181 * @link: pointers to put the handle into a linked list
182 * @protocols: linked list with the protocol interfaces installed on this
183 * handle
184 *
185 * UEFI offers a flexible and expandable object model. The objects in the UEFI
186 * API are devices, drivers, and loaded images. struct efi_object is our storage
187 * structure for these objects.
188 *
189 * When including this structure into a larger structure always put it first so
190 * that when deleting a handle the whole encompassing structure can be freed.
191 *
192 * A pointer to this structure is referred to as a handle. Typedef efi_handle_t
193 * has been created for such pointers.
194 */
195 struct efi_object {
196 /* Every UEFI object is part of a global object list */
197 struct list_head link;
198 /* The list of protocols */
199 struct list_head protocols;
200 };
201
202 /**
203 * struct efi_loaded_image_obj - handle of a loaded image
204 *
205 * @header: EFI object header
206 * @reloc_base: base address for the relocated image
207 * @reloc_size: size of the relocated image
208 * @exit_jmp: long jump buffer for returning form started image
209 * @entry: entry address of the relocated image
210 */
211 struct efi_loaded_image_obj {
212 struct efi_object header;
213 void *reloc_base;
214 aligned_u64 reloc_size;
215 efi_status_t exit_status;
216 struct jmp_buf_data exit_jmp;
217 EFIAPI efi_status_t (*entry)(efi_handle_t image_handle,
218 struct efi_system_table *st);
219 };
220
221 /**
222 * struct efi_event
223 *
224 * @link: Link to list of all events
225 * @type: Type of event, see efi_create_event
226 * @notify_tpl: Task priority level of notifications
227 * @nofify_function: Function to call when the event is triggered
228 * @notify_context: Data to be passed to the notify function
229 * @group: Event group
230 * @trigger_time: Period of the timer
231 * @trigger_next: Next time to trigger the timer
232 * @trigger_type: Type of timer, see efi_set_timer
233 * @is_queued: The notification function is queued
234 * @is_signaled: The event occurred. The event is in the signaled state.
235 */
236 struct efi_event {
237 struct list_head link;
238 uint32_t type;
239 efi_uintn_t notify_tpl;
240 void (EFIAPI *notify_function)(struct efi_event *event, void *context);
241 void *notify_context;
242 const efi_guid_t *group;
243 u64 trigger_next;
244 u64 trigger_time;
245 enum efi_timer_delay trigger_type;
246 bool is_queued;
247 bool is_signaled;
248 };
249
250 /* This list contains all UEFI objects we know of */
251 extern struct list_head efi_obj_list;
252 /* List of all events */
253 extern struct list_head efi_events;
254
255 /* Initialize efi execution environment */
256 efi_status_t efi_init_obj_list(void);
257 /* Called by bootefi to initialize root node */
258 efi_status_t efi_root_node_register(void);
259 /* Called by bootefi to initialize runtime */
260 efi_status_t efi_initialize_system_table(void);
261 /* Called by bootefi to make console interface available */
262 efi_status_t efi_console_register(void);
263 /* Called by bootefi to make all disk storage accessible as EFI objects */
264 efi_status_t efi_disk_register(void);
265 /* Create handles and protocols for the partitions of a block device */
266 int efi_disk_create_partitions(efi_handle_t parent, struct blk_desc *desc,
267 const char *if_typename, int diskid,
268 const char *pdevname);
269 /* Called by bootefi to make GOP (graphical) interface available */
270 efi_status_t efi_gop_register(void);
271 /* Called by bootefi to make the network interface available */
272 efi_status_t efi_net_register(void);
273 /* Called by bootefi to make the watchdog available */
274 efi_status_t efi_watchdog_register(void);
275 /* Called by bootefi to make SMBIOS tables available */
276 /**
277 * efi_acpi_register() - write out ACPI tables
278 *
279 * Called by bootefi to make ACPI tables available
280 *
281 * @return 0 if OK, -ENOMEM if no memory is available for the tables
282 */
283 efi_status_t efi_acpi_register(void);
284 /**
285 * efi_smbios_register() - write out SMBIOS tables
286 *
287 * Called by bootefi to make SMBIOS tables available
288 *
289 * @return 0 if OK, -ENOMEM if no memory is available for the tables
290 */
291 efi_status_t efi_smbios_register(void);
292
293 struct efi_simple_file_system_protocol *
294 efi_fs_from_path(struct efi_device_path *fp);
295
296 /* Called by networking code to memorize the dhcp ack package */
297 void efi_net_set_dhcp_ack(void *pkt, int len);
298 /* Called by efi_set_watchdog_timer to reset the timer */
299 efi_status_t efi_set_watchdog(unsigned long timeout);
300
301 /* Called from places to check whether a timer expired */
302 void efi_timer_check(void);
303 /* PE loader implementation */
304 efi_status_t efi_load_pe(struct efi_loaded_image_obj *handle, void *efi,
305 struct efi_loaded_image *loaded_image_info);
306 /* Called once to store the pristine gd pointer */
307 void efi_save_gd(void);
308 /* Special case handler for error/abort that just tries to dtrt to get
309 * back to u-boot world */
310 void efi_restore_gd(void);
311 /* Call this to relocate the runtime section to an address space */
312 void efi_runtime_relocate(ulong offset, struct efi_mem_desc *map);
313 /* Call this to set the current device name */
314 void efi_set_bootdev(const char *dev, const char *devnr, const char *path);
315 /* Add a new object to the object list. */
316 void efi_add_handle(efi_handle_t obj);
317 /* Create handle */
318 efi_status_t efi_create_handle(efi_handle_t *handle);
319 /* Delete handle */
320 void efi_delete_handle(efi_handle_t obj);
321 /* Call this to validate a handle and find the EFI object for it */
322 struct efi_object *efi_search_obj(const efi_handle_t handle);
323 /* Start image */
324 efi_status_t EFIAPI efi_start_image(efi_handle_t image_handle,
325 efi_uintn_t *exit_data_size,
326 u16 **exit_data);
327 /* Find a protocol on a handle */
328 efi_status_t efi_search_protocol(const efi_handle_t handle,
329 const efi_guid_t *protocol_guid,
330 struct efi_handler **handler);
331 /* Install new protocol on a handle */
332 efi_status_t efi_add_protocol(const efi_handle_t handle,
333 const efi_guid_t *protocol,
334 void *protocol_interface);
335 /* Delete protocol from a handle */
336 efi_status_t efi_remove_protocol(const efi_handle_t handle,
337 const efi_guid_t *protocol,
338 void *protocol_interface);
339 /* Delete all protocols from a handle */
340 efi_status_t efi_remove_all_protocols(const efi_handle_t handle);
341 /* Call this to create an event */
342 efi_status_t efi_create_event(uint32_t type, efi_uintn_t notify_tpl,
343 void (EFIAPI *notify_function) (
344 struct efi_event *event,
345 void *context),
346 void *notify_context, efi_guid_t *group,
347 struct efi_event **event);
348 /* Call this to set a timer */
349 efi_status_t efi_set_timer(struct efi_event *event, enum efi_timer_delay type,
350 uint64_t trigger_time);
351 /* Call this to signal an event */
352 void efi_signal_event(struct efi_event *event, bool check_tpl);
353
354 /* open file system: */
355 struct efi_simple_file_system_protocol *efi_simple_file_system(
356 struct blk_desc *desc, int part, struct efi_device_path *dp);
357
358 /* open file from device-path: */
359 struct efi_file_handle *efi_file_from_path(struct efi_device_path *fp);
360
361 /**
362 * efi_size_in_pages() - convert size in bytes to size in pages
363 *
364 * This macro returns the number of EFI memory pages required to hold 'size'
365 * bytes.
366 *
367 * @size: size in bytes
368 * Return: size in pages
369 */
370 #define efi_size_in_pages(size) ((size + EFI_PAGE_MASK) >> EFI_PAGE_SHIFT)
371 /* Generic EFI memory allocator, call this to get memory */
372 void *efi_alloc(uint64_t len, int memory_type);
373 /* More specific EFI memory allocator, called by EFI payloads */
374 efi_status_t efi_allocate_pages(int type, int memory_type, efi_uintn_t pages,
375 uint64_t *memory);
376 /* EFI memory free function. */
377 efi_status_t efi_free_pages(uint64_t memory, efi_uintn_t pages);
378 /* EFI memory allocator for small allocations */
379 efi_status_t efi_allocate_pool(int pool_type, efi_uintn_t size,
380 void **buffer);
381 /* EFI pool memory free function. */
382 efi_status_t efi_free_pool(void *buffer);
383 /* Returns the EFI memory map */
384 efi_status_t efi_get_memory_map(efi_uintn_t *memory_map_size,
385 struct efi_mem_desc *memory_map,
386 efi_uintn_t *map_key,
387 efi_uintn_t *descriptor_size,
388 uint32_t *descriptor_version);
389 /* Adds a range into the EFI memory map */
390 uint64_t efi_add_memory_map(uint64_t start, uint64_t pages, int memory_type,
391 bool overlap_only_ram);
392 /* Called by board init to initialize the EFI drivers */
393 efi_status_t efi_driver_init(void);
394 /* Called by board init to initialize the EFI memory map */
395 int efi_memory_init(void);
396 /* Adds new or overrides configuration table entry to the system table */
397 efi_status_t efi_install_configuration_table(const efi_guid_t *guid, void *table);
398 /* Sets up a loaded image */
399 efi_status_t efi_setup_loaded_image(struct efi_device_path *device_path,
400 struct efi_device_path *file_path,
401 struct efi_loaded_image_obj **handle_ptr,
402 struct efi_loaded_image **info_ptr);
403 efi_status_t efi_load_image_from_path(struct efi_device_path *file_path,
404 void **buffer, efi_uintn_t *size);
405 /* Print information about all loaded images */
406 void efi_print_image_infos(void *pc);
407
408 #ifdef CONFIG_EFI_LOADER_BOUNCE_BUFFER
409 extern void *efi_bounce_buffer;
410 #define EFI_LOADER_BOUNCE_BUFFER_SIZE (64 * 1024 * 1024)
411 #endif
412
413
414 struct efi_device_path *efi_dp_next(const struct efi_device_path *dp);
415 int efi_dp_match(const struct efi_device_path *a,
416 const struct efi_device_path *b);
417 struct efi_object *efi_dp_find_obj(struct efi_device_path *dp,
418 struct efi_device_path **rem);
419 /* get size of the first device path instance excluding end node */
420 efi_uintn_t efi_dp_instance_size(const struct efi_device_path *dp);
421 /* size of multi-instance device path excluding end node */
422 efi_uintn_t efi_dp_size(const struct efi_device_path *dp);
423 struct efi_device_path *efi_dp_dup(const struct efi_device_path *dp);
424 struct efi_device_path *efi_dp_append(const struct efi_device_path *dp1,
425 const struct efi_device_path *dp2);
426 struct efi_device_path *efi_dp_append_node(const struct efi_device_path *dp,
427 const struct efi_device_path *node);
428 /* Create a device path node of given type, sub-type, length */
429 struct efi_device_path *efi_dp_create_device_node(const u8 type,
430 const u8 sub_type,
431 const u16 length);
432 /* Append device path instance */
433 struct efi_device_path *efi_dp_append_instance(
434 const struct efi_device_path *dp,
435 const struct efi_device_path *dpi);
436 /* Get next device path instance */
437 struct efi_device_path *efi_dp_get_next_instance(struct efi_device_path **dp,
438 efi_uintn_t *size);
439 /* Check if a device path contains muliple instances */
440 bool efi_dp_is_multi_instance(const struct efi_device_path *dp);
441
442 struct efi_device_path *efi_dp_from_dev(struct udevice *dev);
443 struct efi_device_path *efi_dp_from_part(struct blk_desc *desc, int part);
444 /* Create a device node for a block device partition. */
445 struct efi_device_path *efi_dp_part_node(struct blk_desc *desc, int part);
446 struct efi_device_path *efi_dp_from_file(struct blk_desc *desc, int part,
447 const char *path);
448 struct efi_device_path *efi_dp_from_eth(void);
449 struct efi_device_path *efi_dp_from_mem(uint32_t mem_type,
450 uint64_t start_address,
451 uint64_t end_address);
452 /* Determine the last device path node that is not the end node. */
453 const struct efi_device_path *efi_dp_last_node(
454 const struct efi_device_path *dp);
455 efi_status_t efi_dp_split_file_path(struct efi_device_path *full_path,
456 struct efi_device_path **device_path,
457 struct efi_device_path **file_path);
458 efi_status_t efi_dp_from_name(const char *dev, const char *devnr,
459 const char *path,
460 struct efi_device_path **device,
461 struct efi_device_path **file);
462
463 #define EFI_DP_TYPE(_dp, _type, _subtype) \
464 (((_dp)->type == DEVICE_PATH_TYPE_##_type) && \
465 ((_dp)->sub_type == DEVICE_PATH_SUB_TYPE_##_subtype))
466
467 /**
468 * ascii2unicode() - convert ASCII string to UTF-16 string
469 *
470 * A zero terminated ASCII string is converted to a zero terminated UTF-16
471 * string. The output buffer must be preassigned.
472 *
473 * @unicode: preassigned output buffer for UTF-16 string
474 * @ascii: ASCII string to be converted
475 */
ascii2unicode(u16 * unicode,const char * ascii)476 static inline void ascii2unicode(u16 *unicode, const char *ascii)
477 {
478 while (*ascii)
479 *(unicode++) = *(ascii++);
480 *unicode = 0;
481 }
482
guidcmp(const efi_guid_t * g1,const efi_guid_t * g2)483 static inline int guidcmp(const efi_guid_t *g1, const efi_guid_t *g2)
484 {
485 return memcmp(g1, g2, sizeof(efi_guid_t));
486 }
487
488 /*
489 * Use these to indicate that your code / data should go into the EFI runtime
490 * section and thus still be available when the OS is running
491 */
492 #define __efi_runtime_data __attribute__ ((section (".data.efi_runtime")))
493 #define __efi_runtime __attribute__ ((section (".text.efi_runtime")))
494
495 /* Update CRC32 in table header */
496 void __efi_runtime efi_update_table_header_crc32(struct efi_table_hdr *table);
497
498 /* Call this with mmio_ptr as the _pointer_ to a pointer to an MMIO region
499 * to make it available at runtime */
500 efi_status_t efi_add_runtime_mmio(void *mmio_ptr, u64 len);
501
502 /* Boards may provide the functions below to implement RTS functionality */
503
504 void __efi_runtime EFIAPI efi_reset_system(
505 enum efi_reset_type reset_type,
506 efi_status_t reset_status,
507 unsigned long data_size, void *reset_data);
508
509 /* Architecture specific initialization of the EFI subsystem */
510 efi_status_t efi_reset_system_init(void);
511
512 efi_status_t __efi_runtime EFIAPI efi_get_time(
513 struct efi_time *time,
514 struct efi_time_cap *capabilities);
515
516 #ifdef CONFIG_CMD_BOOTEFI_SELFTEST
517 /*
518 * Entry point for the tests of the EFI API.
519 * It is called by 'bootefi selftest'
520 */
521 efi_status_t EFIAPI efi_selftest(efi_handle_t image_handle,
522 struct efi_system_table *systab);
523 #endif
524
525 efi_status_t EFIAPI efi_get_variable(u16 *variable_name,
526 const efi_guid_t *vendor, u32 *attributes,
527 efi_uintn_t *data_size, void *data);
528 efi_status_t EFIAPI efi_get_next_variable_name(efi_uintn_t *variable_name_size,
529 u16 *variable_name,
530 const efi_guid_t *vendor);
531 efi_status_t EFIAPI efi_set_variable(u16 *variable_name,
532 const efi_guid_t *vendor, u32 attributes,
533 efi_uintn_t data_size, const void *data);
534
535 /*
536 * See section 3.1.3 in the v2.7 UEFI spec for more details on
537 * the layout of EFI_LOAD_OPTION. In short it is:
538 *
539 * typedef struct _EFI_LOAD_OPTION {
540 * UINT32 Attributes;
541 * UINT16 FilePathListLength;
542 * // CHAR16 Description[]; <-- variable length, NULL terminated
543 * // EFI_DEVICE_PATH_PROTOCOL FilePathList[];
544 * <-- FilePathListLength bytes
545 * // UINT8 OptionalData[];
546 * } EFI_LOAD_OPTION;
547 */
548 struct efi_load_option {
549 u32 attributes;
550 u16 file_path_length;
551 u16 *label;
552 struct efi_device_path *file_path;
553 u8 *optional_data;
554 };
555
556 void efi_deserialize_load_option(struct efi_load_option *lo, u8 *data);
557 unsigned long efi_serialize_load_option(struct efi_load_option *lo, u8 **data);
558 void *efi_bootmgr_load(struct efi_device_path **device_path,
559 struct efi_device_path **file_path);
560
561 #else /* CONFIG_IS_ENABLED(EFI_LOADER) */
562
563 /* Without CONFIG_EFI_LOADER we don't have a runtime section, stub it out */
564 #define __efi_runtime_data
565 #define __efi_runtime
efi_add_runtime_mmio(void * mmio_ptr,u64 len)566 static inline efi_status_t efi_add_runtime_mmio(void *mmio_ptr, u64 len)
567 {
568 return EFI_SUCCESS;
569 }
570
571 /* No loader configured, stub out EFI_ENTRY */
efi_restore_gd(void)572 static inline void efi_restore_gd(void) { }
efi_set_bootdev(const char * dev,const char * devnr,const char * path)573 static inline void efi_set_bootdev(const char *dev, const char *devnr,
574 const char *path) { }
efi_net_set_dhcp_ack(void * pkt,int len)575 static inline void efi_net_set_dhcp_ack(void *pkt, int len) { }
efi_print_image_infos(void * pc)576 static inline void efi_print_image_infos(void *pc) { }
577
578 #endif /* CONFIG_IS_ENABLED(EFI_LOADER) */
579
580 #endif /* _EFI_LOADER_H */
581