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Tom Rinif739fcd2018-05-07 17:02:21 -04001/* SPDX-License-Identifier: GPL-2.0+ */
Alexander Grafcb149c62016-03-04 01:09:58 +01002/*
3 * EFI application loader
4 *
5 * Copyright (c) 2016 Alexander Graf
Alexander Grafcb149c62016-03-04 01:09:58 +01006 */
7
Heinrich Schuchardtcd9e18d2017-10-18 18:13:07 +02008#ifndef _EFI_LOADER_H
9#define _EFI_LOADER_H 1
10
Alexander Grafbee91162016-03-04 01:09:59 +010011#include <common.h>
Alexander Grafcb149c62016-03-04 01:09:58 +010012#include <part_efi.h>
13#include <efi_api.h>
Alexander Grafbee91162016-03-04 01:09:59 +010014
15/* No need for efi loader support in SPL */
Stephen Warren9b5e6392018-08-30 15:43:43 -060016#if CONFIG_IS_ENABLED(EFI_LOADER)
Alexander Grafbee91162016-03-04 01:09:59 +010017
Alexander Grafcb149c62016-03-04 01:09:58 +010018#include <linux/list.h>
19
Heinrich Schuchardt4182a122018-06-28 12:45:32 +020020/* Maximum number of configuration tables */
21#define EFI_MAX_CONFIGURATION_TABLES 16
22
Heinrich Schuchardt4e6b5d62018-09-20 21:58:23 +020023/* 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)
AKASHI Takahiro23ad52f2019-09-12 13:52:35 +090027/* GUID used as host device on sandbox */
28#define U_BOOT_HOST_DEV_GUID \
29 EFI_GUID(0xbbe4e671, 0x5773, 0x4ea1, \
30 0x9a, 0xab, 0x3a, 0x7d, 0xbf, 0x40, 0xc4, 0x82)
Heinrich Schuchardt4e6b5d62018-09-20 21:58:23 +020031
AKASHI Takahiroa2a4bc32019-04-16 13:24:20 +090032/* Root node */
33extern efi_handle_t efi_root;
34
Rob Clarkc160d2f2017-07-27 08:04:18 -040035int __efi_entry_check(void);
36int __efi_exit_check(void);
Heinrich Schuchardtae0bd3a2017-08-18 17:45:16 +020037const char *__efi_nesting(void);
Rob Clarkaf65db82017-07-27 08:04:19 -040038const char *__efi_nesting_inc(void);
39const char *__efi_nesting_dec(void);
Rob Clarkc160d2f2017-07-27 08:04:18 -040040
Rob Clarka095aad2017-07-27 08:04:17 -040041/*
42 * Enter the u-boot world from UEFI:
43 */
Alexander Grafbee91162016-03-04 01:09:59 +010044#define EFI_ENTRY(format, ...) do { \
Rob Clarkc160d2f2017-07-27 08:04:18 -040045 assert(__efi_entry_check()); \
Rob Clarkaf65db82017-07-27 08:04:19 -040046 debug("%sEFI: Entry %s(" format ")\n", __efi_nesting_inc(), \
47 __func__, ##__VA_ARGS__); \
Alexander Grafbee91162016-03-04 01:09:59 +010048 } while(0)
Alexander Grafbee91162016-03-04 01:09:59 +010049
Rob Clarka095aad2017-07-27 08:04:17 -040050/*
51 * Exit the u-boot world back to UEFI:
52 */
Rob Clark804b1d72017-07-24 10:31:52 -040053#define EFI_EXIT(ret) ({ \
xypron.glpk@gmx.dec81883d2017-08-17 18:57:36 +020054 typeof(ret) _r = ret; \
Rob Clarkaf65db82017-07-27 08:04:19 -040055 debug("%sEFI: Exit: %s: %u\n", __efi_nesting_dec(), \
xypron.glpk@gmx.dec81883d2017-08-17 18:57:36 +020056 __func__, (u32)((uintptr_t) _r & ~EFI_ERROR_MASK)); \
Rob Clarkc160d2f2017-07-27 08:04:18 -040057 assert(__efi_exit_check()); \
58 _r; \
Rob Clark804b1d72017-07-24 10:31:52 -040059 })
Alexander Grafbee91162016-03-04 01:09:59 +010060
Rob Clarka095aad2017-07-27 08:04:17 -040061/*
Heinrich Schuchardtea630ce2017-09-15 10:06:10 +020062 * Call non-void UEFI function from u-boot and retrieve return value:
Rob Clarka095aad2017-07-27 08:04:17 -040063 */
Heinrich Schuchardtea630ce2017-09-15 10:06:10 +020064#define EFI_CALL(exp) ({ \
65 debug("%sEFI: Call: %s\n", __efi_nesting_inc(), #exp); \
66 assert(__efi_exit_check()); \
67 typeof(exp) _r = exp; \
68 assert(__efi_entry_check()); \
69 debug("%sEFI: %lu returned by %s\n", __efi_nesting_dec(), \
70 (unsigned long)((uintptr_t)_r & ~EFI_ERROR_MASK), #exp); \
71 _r; \
72})
73
74/*
75 * Call void UEFI function from u-boot:
76 */
77#define EFI_CALL_VOID(exp) do { \
Rob Clarkaf65db82017-07-27 08:04:19 -040078 debug("%sEFI: Call: %s\n", __efi_nesting_inc(), #exp); \
Rob Clarkc160d2f2017-07-27 08:04:18 -040079 assert(__efi_exit_check()); \
Rob Clarka095aad2017-07-27 08:04:17 -040080 exp; \
Rob Clarkc160d2f2017-07-27 08:04:18 -040081 assert(__efi_entry_check()); \
Rob Clarkaf65db82017-07-27 08:04:19 -040082 debug("%sEFI: Return From: %s\n", __efi_nesting_dec(), #exp); \
Rob Clarka095aad2017-07-27 08:04:17 -040083 } while(0)
84
Heinrich Schuchardtae0bd3a2017-08-18 17:45:16 +020085/*
Heinrich Schuchardtd5504142018-01-11 08:16:01 +010086 * Write an indented message with EFI prefix
Heinrich Schuchardtae0bd3a2017-08-18 17:45:16 +020087 */
Heinrich Schuchardtd5504142018-01-11 08:16:01 +010088#define EFI_PRINT(format, ...) ({ \
89 debug("%sEFI: " format, __efi_nesting(), \
90 ##__VA_ARGS__); \
Heinrich Schuchardtae0bd3a2017-08-18 17:45:16 +020091 })
92
Alexander Graf89aea432018-04-23 07:59:47 +020093#ifdef CONFIG_SYS_CACHELINE_SIZE
94#define EFI_CACHELINE_SIZE CONFIG_SYS_CACHELINE_SIZE
95#else
96/* Just use the greatest cache flush alignment requirement I'm aware of */
97#define EFI_CACHELINE_SIZE 128
98#endif
99
Heinrich Schuchardt1fcb7ea2018-07-02 12:53:55 +0200100/* Key identifying current memory map */
101extern efi_uintn_t efi_memory_map_key;
102
Alexander Graf50149ea2016-03-04 01:10:01 +0100103extern struct efi_runtime_services efi_runtime_services;
Alexander Grafbee91162016-03-04 01:09:59 +0100104extern struct efi_system_table systab;
105
Heinrich Schuchardtebb4dd52017-10-26 19:25:59 +0200106extern struct efi_simple_text_output_protocol efi_con_out;
Heinrich Schuchardt3e603ec2018-09-08 10:20:10 +0200107extern struct efi_simple_text_input_protocol efi_con_in;
Heinrich Schuchardtebb4dd52017-10-26 19:25:59 +0200108extern struct efi_console_control_protocol efi_console_control;
xypron.glpk@gmx.decc5b7082017-07-11 22:06:25 +0200109extern const struct efi_device_path_to_text_protocol efi_device_path_to_text;
Leif Lindholme70f8df2018-03-09 17:43:21 +0100110/* implementation of the EFI_DEVICE_PATH_UTILITIES_PROTOCOL */
111extern const struct efi_device_path_utilities_protocol
112 efi_device_path_utilities;
Heinrich Schuchardtb1b782d2019-05-16 18:19:00 +0200113/* deprecated version of the EFI_UNICODE_COLLATION_PROTOCOL */
114extern const struct efi_unicode_collation_protocol
115 efi_unicode_collation_protocol;
116/* current version of the EFI_UNICODE_COLLATION_PROTOCOL */
Heinrich Schuchardt0bc4b0d2018-09-04 19:34:58 +0200117extern const struct efi_unicode_collation_protocol
Heinrich Schuchardt95ab3812019-05-16 07:52:58 +0200118 efi_unicode_collation_protocol2;
AKASHI Takahirocb728e52019-01-21 12:13:00 +0900119extern const struct efi_hii_config_routing_protocol efi_hii_config_routing;
120extern const struct efi_hii_config_access_protocol efi_hii_config_access;
Leif Lindholmc9bfb222019-01-21 12:12:57 +0900121extern const struct efi_hii_database_protocol efi_hii_database;
122extern const struct efi_hii_string_protocol efi_hii_string;
Alexander Grafc1311ad2016-03-04 01:10:00 +0100123
Rob Clarkadae4312017-09-13 18:05:30 -0400124uint16_t *efi_dp_str(struct efi_device_path *dp);
125
Heinrich Schuchardt4e6b5d62018-09-20 21:58:23 +0200126/* GUID of the U-Boot root node */
127extern const efi_guid_t efi_u_boot_guid;
AKASHI Takahiro23ad52f2019-09-12 13:52:35 +0900128#ifdef CONFIG_SANDBOX
129/* GUID of U-Boot host device on sandbox */
130extern const efi_guid_t efi_guid_host_dev;
131#endif
Heinrich Schuchardtb3dd14b2018-01-19 20:24:45 +0100132/* GUID of the EFI_BLOCK_IO_PROTOCOL */
133extern const efi_guid_t efi_block_io_guid;
Rob Clark9975fe92017-09-13 18:05:38 -0400134extern const efi_guid_t efi_global_variable_guid;
Alexander Grafc1311ad2016-03-04 01:10:00 +0100135extern const efi_guid_t efi_guid_console_control;
Alexander Grafcb149c62016-03-04 01:09:58 +0100136extern const efi_guid_t efi_guid_device_path;
Heinrich Schuchardtf0959db2018-01-11 08:16:02 +0100137/* GUID of the EFI_DRIVER_BINDING_PROTOCOL */
138extern const efi_guid_t efi_guid_driver_binding_protocol;
Heinrich Schuchardta3a28f52018-02-18 15:17:51 +0100139/* event group ExitBootServices() invoked */
140extern const efi_guid_t efi_guid_event_group_exit_boot_services;
141/* event group SetVirtualAddressMap() invoked */
142extern const efi_guid_t efi_guid_event_group_virtual_address_change;
143/* event group memory map changed */
144extern const efi_guid_t efi_guid_event_group_memory_map_change;
145/* event group boot manager about to boot */
146extern const efi_guid_t efi_guid_event_group_ready_to_boot;
147/* event group ResetSystem() invoked (before ExitBootServices) */
148extern const efi_guid_t efi_guid_event_group_reset_system;
Heinrich Schuchardtbc4f9132018-03-03 15:29:03 +0100149/* GUID of the device tree table */
150extern const efi_guid_t efi_guid_fdt;
Alexander Grafcb149c62016-03-04 01:09:58 +0100151extern const efi_guid_t efi_guid_loaded_image;
AKASHI Takahirobc8fc322019-03-27 13:40:32 +0900152extern const efi_guid_t efi_guid_loaded_image_device_path;
xypron.glpk@gmx.decc5b7082017-07-11 22:06:25 +0200153extern const efi_guid_t efi_guid_device_path_to_text_protocol;
Rob Clark2a920802017-09-13 18:05:34 -0400154extern const efi_guid_t efi_simple_file_system_protocol_guid;
155extern const efi_guid_t efi_file_info_guid;
Heinrich Schuchardt9e6835e2018-04-04 15:42:11 +0200156/* GUID for file system information */
157extern const efi_guid_t efi_file_system_info_guid;
Leif Lindholme70f8df2018-03-09 17:43:21 +0100158extern const efi_guid_t efi_guid_device_path_utilities_protocol;
Heinrich Schuchardtb1b782d2019-05-16 18:19:00 +0200159/* GUID of the deprecated Unicode collation protocol */
160extern const efi_guid_t efi_guid_unicode_collation_protocol;
Heinrich Schuchardt0bc4b0d2018-09-04 19:34:58 +0200161/* GUID of the Unicode collation protocol */
Heinrich Schuchardt95ab3812019-05-16 07:52:58 +0200162extern const efi_guid_t efi_guid_unicode_collation_protocol2;
AKASHI Takahirocb728e52019-01-21 12:13:00 +0900163extern const efi_guid_t efi_guid_hii_config_routing_protocol;
164extern const efi_guid_t efi_guid_hii_config_access_protocol;
Leif Lindholmc9bfb222019-01-21 12:12:57 +0900165extern const efi_guid_t efi_guid_hii_database_protocol;
166extern const efi_guid_t efi_guid_hii_string_protocol;
Alexander Grafcb149c62016-03-04 01:09:58 +0100167
Alexander Graf50149ea2016-03-04 01:10:01 +0100168extern unsigned int __efi_runtime_start, __efi_runtime_stop;
169extern unsigned int __efi_runtime_rel_start, __efi_runtime_rel_stop;
170
Heinrich Schuchardt1f1075c2019-05-21 17:51:35 +0200171/**
172 * struct efi_open_protocol_info_item - open protocol info item
173 *
Heinrich Schuchardtfe1599d2018-01-11 08:15:57 +0100174 * When a protocol is opened a open protocol info entry is created.
175 * These are maintained in a list.
Heinrich Schuchardt1f1075c2019-05-21 17:51:35 +0200176 *
177 * @link: link to the list of open protocol info entries of a protocol
178 * @info: information about the opening of a protocol
Heinrich Schuchardtfe1599d2018-01-11 08:15:57 +0100179 */
180struct efi_open_protocol_info_item {
Heinrich Schuchardtfe1599d2018-01-11 08:15:57 +0100181 struct list_head link;
182 struct efi_open_protocol_info_entry info;
183};
184
Heinrich Schuchardt1f1075c2019-05-21 17:51:35 +0200185/**
186 * struct efi_handler - single protocol interface of a handle
187 *
Alexander Grafbee91162016-03-04 01:09:59 +0100188 * When the UEFI payload wants to open a protocol on an object to get its
189 * interface (usually a struct with callback functions), this struct maps the
Heinrich Schuchardtfe1599d2018-01-11 08:15:57 +0100190 * protocol GUID to the respective protocol interface
Heinrich Schuchardt1f1075c2019-05-21 17:51:35 +0200191 *
192 * @link: link to the list of protocols of a handle
193 * @guid: GUID of the protocol
194 * @protocol_interface: protocol interface
195 * @open_infos link to the list of open protocol info items
Heinrich Schuchardtfe1599d2018-01-11 08:15:57 +0100196 */
Alexander Grafbee91162016-03-04 01:09:59 +0100197struct efi_handler {
Heinrich Schuchardt69fb6b12017-11-26 14:05:17 +0100198 struct list_head link;
Alexander Grafbee91162016-03-04 01:09:59 +0100199 const efi_guid_t *guid;
xypron.glpk@gmx.deb5349f72017-07-11 22:06:14 +0200200 void *protocol_interface;
Heinrich Schuchardtfe1599d2018-01-11 08:15:57 +0100201 struct list_head open_infos;
Alexander Grafbee91162016-03-04 01:09:59 +0100202};
203
Heinrich Schuchardtfae01182018-09-26 05:27:55 +0200204/**
Heinrich Schuchardtcd73aba2019-05-01 14:20:18 +0200205 * enum efi_object_type - type of EFI object
206 *
207 * In UnloadImage we must be able to identify if the handle relates to a
208 * started image.
209 */
210enum efi_object_type {
211 EFI_OBJECT_TYPE_UNDEFINED = 0,
Heinrich Schuchardt84a918e2019-05-05 16:55:06 +0200212 EFI_OBJECT_TYPE_U_BOOT_FIRMWARE,
Heinrich Schuchardtcd73aba2019-05-01 14:20:18 +0200213 EFI_OBJECT_TYPE_LOADED_IMAGE,
214 EFI_OBJECT_TYPE_STARTED_IMAGE,
215};
216
217/**
Heinrich Schuchardtfae01182018-09-26 05:27:55 +0200218 * struct efi_object - dereferenced EFI handle
Alexander Grafbee91162016-03-04 01:09:59 +0100219 *
Heinrich Schuchardtfae01182018-09-26 05:27:55 +0200220 * @link: pointers to put the handle into a linked list
221 * @protocols: linked list with the protocol interfaces installed on this
222 * handle
223 *
224 * UEFI offers a flexible and expandable object model. The objects in the UEFI
225 * API are devices, drivers, and loaded images. struct efi_object is our storage
226 * structure for these objects.
227 *
228 * When including this structure into a larger structure always put it first so
229 * that when deleting a handle the whole encompassing structure can be freed.
230 *
231 * A pointer to this structure is referred to as a handle. Typedef efi_handle_t
232 * has been created for such pointers.
Alexander Grafbee91162016-03-04 01:09:59 +0100233 */
234struct efi_object {
235 /* Every UEFI object is part of a global object list */
236 struct list_head link;
Heinrich Schuchardt69fb6b12017-11-26 14:05:17 +0100237 /* The list of protocols */
238 struct list_head protocols;
Heinrich Schuchardtcd73aba2019-05-01 14:20:18 +0200239 enum efi_object_type type;
Alexander Grafbee91162016-03-04 01:09:59 +0100240};
241
xypron.glpk@gmx.dec6841592017-07-18 20:17:18 +0200242/**
Heinrich Schuchardtc9828742018-09-23 17:21:51 +0200243 * struct efi_loaded_image_obj - handle of a loaded image
Heinrich Schuchardtd39646a2018-09-26 05:27:56 +0200244 *
245 * @header: EFI object header
Heinrich Schuchardt556d8dc2019-04-30 17:57:30 +0200246 * @exit_status: exit status passed to Exit()
247 * @exit_data_size: exit data size passed to Exit()
248 * @exit_data: exit data passed to Exit()
Heinrich Schuchardtd39646a2018-09-26 05:27:56 +0200249 * @exit_jmp: long jump buffer for returning form started image
250 * @entry: entry address of the relocated image
Heinrich Schuchardtc9828742018-09-23 17:21:51 +0200251 */
252struct efi_loaded_image_obj {
Heinrich Schuchardtd39646a2018-09-26 05:27:56 +0200253 struct efi_object header;
Heinrich Schuchardtc9828742018-09-23 17:21:51 +0200254 efi_status_t exit_status;
Heinrich Schuchardt556d8dc2019-04-30 17:57:30 +0200255 efi_uintn_t *exit_data_size;
256 u16 **exit_data;
Heinrich Schuchardtc9828742018-09-23 17:21:51 +0200257 struct jmp_buf_data exit_jmp;
258 EFIAPI efi_status_t (*entry)(efi_handle_t image_handle,
259 struct efi_system_table *st);
Heinrich Schuchardt126a43f2019-05-01 20:07:04 +0200260 u16 image_type;
Heinrich Schuchardtc9828742018-09-23 17:21:51 +0200261};
262
263/**
xypron.glpk@gmx.dec6841592017-07-18 20:17:18 +0200264 * struct efi_event
265 *
Heinrich Schuchardt43bce442018-02-18 15:17:50 +0100266 * @link: Link to list of all events
Heinrich Schuchardt7a69e972019-06-05 21:00:39 +0200267 * @queue_link: Link to the list of queued events
xypron.glpk@gmx.dec6841592017-07-18 20:17:18 +0200268 * @type: Type of event, see efi_create_event
269 * @notify_tpl: Task priority level of notifications
xypron.glpk@gmx.dec6841592017-07-18 20:17:18 +0200270 * @nofify_function: Function to call when the event is triggered
271 * @notify_context: Data to be passed to the notify function
Heinrich Schuchardtb095f3c2018-02-18 15:17:52 +0100272 * @group: Event group
Heinrich Schuchardt43bce442018-02-18 15:17:50 +0100273 * @trigger_time: Period of the timer
274 * @trigger_next: Next time to trigger the timer
xypron.glpk@gmx.dec6841592017-07-18 20:17:18 +0200275 * @trigger_type: Type of timer, see efi_set_timer
Heinrich Schuchardt43bce442018-02-18 15:17:50 +0100276 * @is_signaled: The event occurred. The event is in the signaled state.
xypron.glpk@gmx.dec6841592017-07-18 20:17:18 +0200277 */
278struct efi_event {
Heinrich Schuchardt43bce442018-02-18 15:17:50 +0100279 struct list_head link;
Heinrich Schuchardt7a69e972019-06-05 21:00:39 +0200280 struct list_head queue_link;
xypron.glpk@gmx.deb521d292017-07-19 19:22:34 +0200281 uint32_t type;
Heinrich Schuchardt152cade2017-11-06 21:17:47 +0100282 efi_uintn_t notify_tpl;
xypron.glpk@gmx.dec6841592017-07-18 20:17:18 +0200283 void (EFIAPI *notify_function)(struct efi_event *event, void *context);
284 void *notify_context;
Heinrich Schuchardtb095f3c2018-02-18 15:17:52 +0100285 const efi_guid_t *group;
xypron.glpk@gmx.dec6841592017-07-18 20:17:18 +0200286 u64 trigger_next;
287 u64 trigger_time;
xypron.glpk@gmx.deb521d292017-07-19 19:22:34 +0200288 enum efi_timer_delay trigger_type;
Heinrich Schuchardte190e892017-10-04 15:03:24 +0200289 bool is_signaled;
xypron.glpk@gmx.dec6841592017-07-18 20:17:18 +0200290};
291
Alexander Grafbee91162016-03-04 01:09:59 +0100292/* This list contains all UEFI objects we know of */
293extern struct list_head efi_obj_list;
Heinrich Schuchardtb095f3c2018-02-18 15:17:52 +0100294/* List of all events */
295extern struct list_head efi_events;
Alexander Grafbee91162016-03-04 01:09:59 +0100296
Heinrich Schuchardtab15d412019-05-04 17:27:54 +0200297/**
Heinrich Schuchardtf09cea32019-05-21 18:19:01 +0200298 * struct efi_protocol_notification - handle for notified protocol
299 *
300 * When a protocol interface is installed for which an event was registered with
301 * the RegisterProtocolNotify() service this structure is used to hold the
302 * handle on which the protocol interface was installed.
303 *
304 * @link: link to list of all handles notified for this event
305 * @handle: handle on which the notified protocol interface was installed
306 */
307struct efi_protocol_notification {
308 struct list_head link;
309 efi_handle_t handle;
310};
311
312/**
Heinrich Schuchardtab15d412019-05-04 17:27:54 +0200313 * efi_register_notify_event - event registered by RegisterProtocolNotify()
314 *
315 * The address of this structure serves as registration value.
316 *
Heinrich Schuchardtf09cea32019-05-21 18:19:01 +0200317 * @link: link to list of all registered events
318 * @event: registered event. The same event may registered for multiple
319 * GUIDs.
320 * @protocol: protocol for which the event is registered
321 * @handles: linked list of all handles on which the notified protocol was
322 * installed
Heinrich Schuchardtab15d412019-05-04 17:27:54 +0200323 */
324struct efi_register_notify_event {
325 struct list_head link;
326 struct efi_event *event;
327 efi_guid_t protocol;
Heinrich Schuchardtf09cea32019-05-21 18:19:01 +0200328 struct list_head handles;
Heinrich Schuchardtab15d412019-05-04 17:27:54 +0200329};
330
331/* List of all events registered by RegisterProtocolNotify() */
332extern struct list_head efi_register_notify_events;
333
AKASHI Takahiro056b45b2018-12-30 15:16:55 +0100334/* Initialize efi execution environment */
335efi_status_t efi_init_obj_list(void);
Heinrich Schuchardt88192092019-06-20 13:52:16 +0200336/* Initialize variable services */
337efi_status_t efi_init_variables(void);
Heinrich Schuchardt29018ab2019-06-20 15:25:48 +0200338/* Notify ExitBootServices() is called */
339void efi_variables_boot_exit_notify(void);
Heinrich Schuchardt4e6b5d62018-09-20 21:58:23 +0200340/* Called by bootefi to initialize root node */
341efi_status_t efi_root_node_register(void);
Heinrich Schuchardt640adad2018-06-28 12:45:31 +0200342/* Called by bootefi to initialize runtime */
343efi_status_t efi_initialize_system_table(void);
Heinrich Schuchardt7f951042019-07-05 17:42:16 +0200344/* efi_runtime_detach() - detach unimplemented runtime functions */
345void efi_runtime_detach(void);
xypron.glpk@gmx.de91be9a72017-07-18 20:17:22 +0200346/* Called by bootefi to make console interface available */
Heinrich Schuchardt6f566c22018-10-02 06:08:26 +0200347efi_status_t efi_console_register(void);
Alexander Graf2a22d052016-03-04 01:10:02 +0100348/* Called by bootefi to make all disk storage accessible as EFI objects */
Heinrich Schuchardtdf9cf562018-02-09 20:55:47 +0100349efi_status_t efi_disk_register(void);
Heinrich Schuchardt64e4db02018-01-19 20:24:47 +0100350/* Create handles and protocols for the partitions of a block device */
351int efi_disk_create_partitions(efi_handle_t parent, struct blk_desc *desc,
352 const char *if_typename, int diskid,
353 const char *pdevname);
Alexander Grafbe8d3242016-03-15 18:38:21 +0100354/* Called by bootefi to make GOP (graphical) interface available */
Heinrich Schuchardt80ea9b02018-03-03 15:28:55 +0100355efi_status_t efi_gop_register(void);
Alexander Graf0efe1bc2016-05-06 21:01:01 +0200356/* Called by bootefi to make the network interface available */
Heinrich Schuchardt075d4252018-03-03 15:28:56 +0100357efi_status_t efi_net_register(void);
Heinrich Schuchardtb3d60902017-10-18 18:13:04 +0200358/* Called by bootefi to make the watchdog available */
Heinrich Schuchardtd7b181d2018-03-03 15:28:57 +0100359efi_status_t efi_watchdog_register(void);
Alexander Grafe663b352016-08-19 01:23:29 +0200360/* Called by bootefi to make SMBIOS tables available */
Simon Glass0864c562018-05-16 09:42:19 -0600361/**
Bin Meng86df34d2018-06-27 20:38:03 -0700362 * efi_acpi_register() - write out ACPI tables
363 *
364 * Called by bootefi to make ACPI tables available
365 *
366 * @return 0 if OK, -ENOMEM if no memory is available for the tables
367 */
368efi_status_t efi_acpi_register(void);
369/**
Simon Glass0864c562018-05-16 09:42:19 -0600370 * efi_smbios_register() - write out SMBIOS tables
371 *
372 * Called by bootefi to make SMBIOS tables available
373 *
374 * @return 0 if OK, -ENOMEM if no memory is available for the tables
375 */
Heinrich Schuchardt76571522018-03-03 15:28:54 +0100376efi_status_t efi_smbios_register(void);
Alexander Graf0efe1bc2016-05-06 21:01:01 +0200377
Rob Clark2a920802017-09-13 18:05:34 -0400378struct efi_simple_file_system_protocol *
379efi_fs_from_path(struct efi_device_path *fp);
380
Alexander Graf0efe1bc2016-05-06 21:01:01 +0200381/* Called by networking code to memorize the dhcp ack package */
382void efi_net_set_dhcp_ack(void *pkt, int len);
Heinrich Schuchardtb3d60902017-10-18 18:13:04 +0200383/* Called by efi_set_watchdog_timer to reset the timer */
384efi_status_t efi_set_watchdog(unsigned long timeout);
Alexander Graf0efe1bc2016-05-06 21:01:01 +0200385
Alexander Grafbee91162016-03-04 01:09:59 +0100386/* Called from places to check whether a timer expired */
387void efi_timer_check(void);
388/* PE loader implementation */
Heinrich Schuchardt8f7e2b22018-12-26 12:49:09 +0100389efi_status_t efi_load_pe(struct efi_loaded_image_obj *handle, void *efi,
390 struct efi_loaded_image *loaded_image_info);
Alexander Grafbee91162016-03-04 01:09:59 +0100391/* Called once to store the pristine gd pointer */
392void efi_save_gd(void);
Rob Clarkc160d2f2017-07-27 08:04:18 -0400393/* Special case handler for error/abort that just tries to dtrt to get
394 * back to u-boot world */
Alexander Grafbee91162016-03-04 01:09:59 +0100395void efi_restore_gd(void);
Alexander Graf50149ea2016-03-04 01:10:01 +0100396/* Call this to relocate the runtime section to an address space */
397void efi_runtime_relocate(ulong offset, struct efi_mem_desc *map);
Alexander Graf0f4060e2016-03-04 01:10:14 +0100398/* Call this to set the current device name */
Alexander Grafc07ad7c2016-04-11 16:16:19 +0200399void efi_set_bootdev(const char *dev, const char *devnr, const char *path);
Heinrich Schuchardt44549d62017-11-26 14:05:23 +0100400/* Add a new object to the object list. */
Heinrich Schuchardtfae01182018-09-26 05:27:55 +0200401void efi_add_handle(efi_handle_t obj);
Heinrich Schuchardt2edab5e2017-10-26 19:25:49 +0200402/* Create handle */
Heinrich Schuchardt2074f702018-01-11 08:16:09 +0100403efi_status_t efi_create_handle(efi_handle_t *handle);
Heinrich Schuchardt678e03a2017-12-04 18:03:02 +0100404/* Delete handle */
Heinrich Schuchardtfae01182018-09-26 05:27:55 +0200405void efi_delete_handle(efi_handle_t obj);
Heinrich Schuchardt1b681532017-11-06 21:17:50 +0100406/* Call this to validate a handle and find the EFI object for it */
Heinrich Schuchardt2074f702018-01-11 08:16:09 +0100407struct efi_object *efi_search_obj(const efi_handle_t handle);
AKASHI Takahirod7e0b012019-03-05 14:53:31 +0900408/* Load image */
409efi_status_t EFIAPI efi_load_image(bool boot_policy,
410 efi_handle_t parent_image,
411 struct efi_device_path *file_path,
412 void *source_buffer,
413 efi_uintn_t source_size,
414 efi_handle_t *image_handle);
Heinrich Schuchardtf69d63f2018-12-26 13:28:09 +0100415/* Start image */
416efi_status_t EFIAPI efi_start_image(efi_handle_t image_handle,
417 efi_uintn_t *exit_data_size,
418 u16 **exit_data);
AKASHI Takahirod7e0b012019-03-05 14:53:31 +0900419/* Unload image */
420efi_status_t EFIAPI efi_unload_image(efi_handle_t image_handle);
Heinrich Schuchardt3f79a2b2017-10-26 19:25:53 +0200421/* Find a protocol on a handle */
Heinrich Schuchardt2074f702018-01-11 08:16:09 +0100422efi_status_t efi_search_protocol(const efi_handle_t handle,
Heinrich Schuchardt3f79a2b2017-10-26 19:25:53 +0200423 const efi_guid_t *protocol_guid,
424 struct efi_handler **handler);
425/* Install new protocol on a handle */
Heinrich Schuchardt2074f702018-01-11 08:16:09 +0100426efi_status_t efi_add_protocol(const efi_handle_t handle,
427 const efi_guid_t *protocol,
Heinrich Schuchardt3f79a2b2017-10-26 19:25:53 +0200428 void *protocol_interface);
429/* Delete protocol from a handle */
Heinrich Schuchardt2074f702018-01-11 08:16:09 +0100430efi_status_t efi_remove_protocol(const efi_handle_t handle,
431 const efi_guid_t *protocol,
Heinrich Schuchardt3f79a2b2017-10-26 19:25:53 +0200432 void *protocol_interface);
433/* Delete all protocols from a handle */
Heinrich Schuchardt2074f702018-01-11 08:16:09 +0100434efi_status_t efi_remove_all_protocols(const efi_handle_t handle);
Heinrich Schuchardt7657ae12019-04-12 06:59:49 +0200435/* Install multiple protocol interfaces */
436efi_status_t EFIAPI efi_install_multiple_protocol_interfaces
437 (efi_handle_t *handle, ...);
xypron.glpk@gmx.de49deb452017-07-18 20:17:20 +0200438/* Call this to create an event */
Heinrich Schuchardt152cade2017-11-06 21:17:47 +0100439efi_status_t efi_create_event(uint32_t type, efi_uintn_t notify_tpl,
xypron.glpk@gmx.de49deb452017-07-18 20:17:20 +0200440 void (EFIAPI *notify_function) (
441 struct efi_event *event,
442 void *context),
Heinrich Schuchardtb095f3c2018-02-18 15:17:52 +0100443 void *notify_context, efi_guid_t *group,
444 struct efi_event **event);
xypron.glpk@gmx.debfc72462017-07-18 20:17:21 +0200445/* Call this to set a timer */
xypron.glpk@gmx.deb521d292017-07-19 19:22:34 +0200446efi_status_t efi_set_timer(struct efi_event *event, enum efi_timer_delay type,
xypron.glpk@gmx.debfc72462017-07-18 20:17:21 +0200447 uint64_t trigger_time);
xypron.glpk@gmx.de91be9a72017-07-18 20:17:22 +0200448/* Call this to signal an event */
Heinrich Schuchardt7eaa9002019-06-07 06:47:01 +0200449void efi_signal_event(struct efi_event *event);
Alexander Graf50149ea2016-03-04 01:10:01 +0100450
Rob Clark2a920802017-09-13 18:05:34 -0400451/* open file system: */
452struct efi_simple_file_system_protocol *efi_simple_file_system(
453 struct blk_desc *desc, int part, struct efi_device_path *dp);
454
455/* open file from device-path: */
456struct efi_file_handle *efi_file_from_path(struct efi_device_path *fp);
457
Heinrich Schuchardtc3772ca2018-11-18 17:58:49 +0100458/**
459 * efi_size_in_pages() - convert size in bytes to size in pages
460 *
461 * This macro returns the number of EFI memory pages required to hold 'size'
462 * bytes.
463 *
464 * @size: size in bytes
465 * Return: size in pages
466 */
467#define efi_size_in_pages(size) ((size + EFI_PAGE_MASK) >> EFI_PAGE_SHIFT)
Alexander Graf5d009952016-03-04 01:10:04 +0100468/* Generic EFI memory allocator, call this to get memory */
469void *efi_alloc(uint64_t len, int memory_type);
470/* More specific EFI memory allocator, called by EFI payloads */
Heinrich Schuchardtf5a2a932017-11-06 21:17:48 +0100471efi_status_t efi_allocate_pages(int type, int memory_type, efi_uintn_t pages,
Alexander Graf5d009952016-03-04 01:10:04 +0100472 uint64_t *memory);
Stefan Brünsb61d8572016-10-01 23:32:27 +0200473/* EFI memory free function. */
Heinrich Schuchardtf5a2a932017-11-06 21:17:48 +0100474efi_status_t efi_free_pages(uint64_t memory, efi_uintn_t pages);
Stefan Brünsead12742016-10-09 22:17:18 +0200475/* EFI memory allocator for small allocations */
Heinrich Schuchardtf5a2a932017-11-06 21:17:48 +0100476efi_status_t efi_allocate_pool(int pool_type, efi_uintn_t size,
Stefan Brünsead12742016-10-09 22:17:18 +0200477 void **buffer);
Stefan Brüns42417bc2016-10-09 22:17:26 +0200478/* EFI pool memory free function. */
479efi_status_t efi_free_pool(void *buffer);
Alexander Graf5d009952016-03-04 01:10:04 +0100480/* Returns the EFI memory map */
Heinrich Schuchardtf5a2a932017-11-06 21:17:48 +0100481efi_status_t efi_get_memory_map(efi_uintn_t *memory_map_size,
Alexander Graf5d009952016-03-04 01:10:04 +0100482 struct efi_mem_desc *memory_map,
Heinrich Schuchardtf5a2a932017-11-06 21:17:48 +0100483 efi_uintn_t *map_key,
484 efi_uintn_t *descriptor_size,
Alexander Graf5d009952016-03-04 01:10:04 +0100485 uint32_t *descriptor_version);
486/* Adds a range into the EFI memory map */
Bryan O'Donoghueb225c922019-07-15 12:00:39 +0100487efi_status_t efi_add_memory_map(uint64_t start, uint64_t pages, int memory_type,
488 bool overlap_only_ram);
Park, Aidenb5b9eff2019-09-03 17:43:43 +0000489/* Adds a conventional range into the EFI memory map */
490efi_status_t efi_add_conventional_memory_map(u64 ram_start, u64 ram_end,
491 u64 ram_top);
492
Heinrich Schuchardt05ef48a2018-01-21 19:29:30 +0100493/* Called by board init to initialize the EFI drivers */
Heinrich Schuchardt038782a2018-02-01 12:53:32 +0100494efi_status_t efi_driver_init(void);
Alexander Graf5d009952016-03-04 01:10:04 +0100495/* Called by board init to initialize the EFI memory map */
496int efi_memory_init(void);
Alexander Graf488bf122016-08-19 01:23:24 +0200497/* Adds new or overrides configuration table entry to the system table */
498efi_status_t efi_install_configuration_table(const efi_guid_t *guid, void *table);
Heinrich Schuchardt56d92882017-12-04 18:03:01 +0100499/* Sets up a loaded image */
Heinrich Schuchardtc9828742018-09-23 17:21:51 +0200500efi_status_t efi_setup_loaded_image(struct efi_device_path *device_path,
501 struct efi_device_path *file_path,
502 struct efi_loaded_image_obj **handle_ptr,
503 struct efi_loaded_image **info_ptr);
Heinrich Schuchardtc9a63f42018-04-05 11:56:21 +0200504/* Print information about all loaded images */
505void efi_print_image_infos(void *pc);
Alexander Graf5d009952016-03-04 01:10:04 +0100506
Alexander Graf51735ae2016-05-11 18:25:48 +0200507#ifdef CONFIG_EFI_LOADER_BOUNCE_BUFFER
508extern void *efi_bounce_buffer;
509#define EFI_LOADER_BOUNCE_BUFFER_SIZE (64 * 1024 * 1024)
510#endif
511
Rob Clarkb66c60d2017-09-13 18:05:28 -0400512
513struct efi_device_path *efi_dp_next(const struct efi_device_path *dp);
Heinrich Schuchardtff401d32017-10-26 19:25:48 +0200514int efi_dp_match(const struct efi_device_path *a,
515 const struct efi_device_path *b);
Rob Clarkb66c60d2017-09-13 18:05:28 -0400516struct efi_object *efi_dp_find_obj(struct efi_device_path *dp,
517 struct efi_device_path **rem);
Heinrich Schuchardtf6dd3f32018-04-16 07:59:08 +0200518/* get size of the first device path instance excluding end node */
519efi_uintn_t efi_dp_instance_size(const struct efi_device_path *dp);
520/* size of multi-instance device path excluding end node */
521efi_uintn_t efi_dp_size(const struct efi_device_path *dp);
Rob Clarkb66c60d2017-09-13 18:05:28 -0400522struct efi_device_path *efi_dp_dup(const struct efi_device_path *dp);
523struct efi_device_path *efi_dp_append(const struct efi_device_path *dp1,
524 const struct efi_device_path *dp2);
525struct efi_device_path *efi_dp_append_node(const struct efi_device_path *dp,
526 const struct efi_device_path *node);
Heinrich Schuchardt211314c2018-04-16 07:59:05 +0200527/* Create a device path node of given type, sub-type, length */
528struct efi_device_path *efi_dp_create_device_node(const u8 type,
529 const u8 sub_type,
530 const u16 length);
Heinrich Schuchardt3acef5d2018-04-16 07:59:09 +0200531/* Append device path instance */
532struct efi_device_path *efi_dp_append_instance(
533 const struct efi_device_path *dp,
534 const struct efi_device_path *dpi);
535/* Get next device path instance */
536struct efi_device_path *efi_dp_get_next_instance(struct efi_device_path **dp,
537 efi_uintn_t *size);
538/* Check if a device path contains muliple instances */
539bool efi_dp_is_multi_instance(const struct efi_device_path *dp);
Rob Clarkb66c60d2017-09-13 18:05:28 -0400540
541struct efi_device_path *efi_dp_from_dev(struct udevice *dev);
542struct efi_device_path *efi_dp_from_part(struct blk_desc *desc, int part);
Heinrich Schuchardt98d48bd2018-01-19 20:24:46 +0100543/* Create a device node for a block device partition. */
544struct efi_device_path *efi_dp_part_node(struct blk_desc *desc, int part);
Rob Clarkb66c60d2017-09-13 18:05:28 -0400545struct efi_device_path *efi_dp_from_file(struct blk_desc *desc, int part,
546 const char *path);
547struct efi_device_path *efi_dp_from_eth(void);
Rob Clarkbf192732017-10-10 08:23:06 -0400548struct efi_device_path *efi_dp_from_mem(uint32_t mem_type,
549 uint64_t start_address,
550 uint64_t end_address);
Heinrich Schuchardt65436f92018-01-19 20:24:49 +0100551/* Determine the last device path node that is not the end node. */
552const struct efi_device_path *efi_dp_last_node(
553 const struct efi_device_path *dp);
Heinrich Schuchardt04298682018-01-19 20:24:37 +0100554efi_status_t efi_dp_split_file_path(struct efi_device_path *full_path,
555 struct efi_device_path **device_path,
556 struct efi_device_path **file_path);
AKASHI Takahirof1589ff2018-10-17 16:32:03 +0900557efi_status_t efi_dp_from_name(const char *dev, const char *devnr,
558 const char *path,
559 struct efi_device_path **device,
560 struct efi_device_path **file);
Rob Clarkb66c60d2017-09-13 18:05:28 -0400561
562#define EFI_DP_TYPE(_dp, _type, _subtype) \
563 (((_dp)->type == DEVICE_PATH_TYPE_##_type) && \
564 ((_dp)->sub_type == DEVICE_PATH_SUB_TYPE_##_subtype))
565
Heinrich Schuchardtade317a2019-07-14 18:51:00 +0200566static inline int guidcmp(const void *g1, const void *g2)
Rob Clark3e094c52017-07-24 07:59:11 -0400567{
568 return memcmp(g1, g2, sizeof(efi_guid_t));
569}
570
Alexander Graf50149ea2016-03-04 01:10:01 +0100571/*
572 * Use these to indicate that your code / data should go into the EFI runtime
573 * section and thus still be available when the OS is running
574 */
Alexander Graf7e21fbc2018-06-12 07:48:37 +0200575#define __efi_runtime_data __attribute__ ((section (".data.efi_runtime")))
576#define __efi_runtime __attribute__ ((section (".text.efi_runtime")))
Alexander Grafbee91162016-03-04 01:09:59 +0100577
AKASHI Takahiroe771b4b2019-06-05 13:21:38 +0900578/* Indicate supported runtime services */
579efi_status_t efi_init_runtime_supported(void);
580
Heinrich Schuchardta39f39c2018-07-29 09:49:04 +0200581/* Update CRC32 in table header */
582void __efi_runtime efi_update_table_header_crc32(struct efi_table_hdr *table);
583
Alexander Graf80a48002016-08-16 21:08:45 +0200584/* Call this with mmio_ptr as the _pointer_ to a pointer to an MMIO region
585 * to make it available at runtime */
Heinrich Schuchardt22c793e2018-03-03 15:28:59 +0100586efi_status_t efi_add_runtime_mmio(void *mmio_ptr, u64 len);
Alexander Graf80a48002016-08-16 21:08:45 +0200587
588/* Boards may provide the functions below to implement RTS functionality */
589
Alexander Graf3c63db92016-10-14 13:45:30 +0200590void __efi_runtime EFIAPI efi_reset_system(
Alexander Graf80a48002016-08-16 21:08:45 +0200591 enum efi_reset_type reset_type,
592 efi_status_t reset_status,
593 unsigned long data_size, void *reset_data);
Heinrich Schuchardt22c793e2018-03-03 15:28:59 +0100594
595/* Architecture specific initialization of the EFI subsystem */
596efi_status_t efi_reset_system_init(void);
Alexander Graf80a48002016-08-16 21:08:45 +0200597
Alexander Graf3c63db92016-10-14 13:45:30 +0200598efi_status_t __efi_runtime EFIAPI efi_get_time(
Alexander Graf80a48002016-08-16 21:08:45 +0200599 struct efi_time *time,
600 struct efi_time_cap *capabilities);
Alexander Graf80a48002016-08-16 21:08:45 +0200601
Heinrich Schuchardt656f1712019-05-31 07:38:29 +0200602efi_status_t __efi_runtime EFIAPI efi_set_time(struct efi_time *time);
603
Heinrich Schuchardt623b3a52017-09-15 10:06:11 +0200604#ifdef CONFIG_CMD_BOOTEFI_SELFTEST
605/*
606 * Entry point for the tests of the EFI API.
607 * It is called by 'bootefi selftest'
608 */
609efi_status_t EFIAPI efi_selftest(efi_handle_t image_handle,
610 struct efi_system_table *systab);
611#endif
612
Heinrich Schuchardt0bda81b2018-12-30 20:53:51 +0100613efi_status_t EFIAPI efi_get_variable(u16 *variable_name,
614 const efi_guid_t *vendor, u32 *attributes,
615 efi_uintn_t *data_size, void *data);
Heinrich Schuchardt45c66f92018-05-17 07:57:05 +0200616efi_status_t EFIAPI efi_get_next_variable_name(efi_uintn_t *variable_name_size,
617 u16 *variable_name,
Heinrich Schuchardt0bda81b2018-12-30 20:53:51 +0100618 const efi_guid_t *vendor);
619efi_status_t EFIAPI efi_set_variable(u16 *variable_name,
620 const efi_guid_t *vendor, u32 attributes,
Heinrich Schuchardt452257a2018-12-30 21:03:15 +0100621 efi_uintn_t data_size, const void *data);
Rob Clarkad644e72017-09-13 18:05:37 -0400622
Heinrich Schuchardtce435282019-06-20 12:13:05 +0200623efi_status_t EFIAPI efi_query_variable_info(
624 u32 attributes, u64 *maximum_variable_storage_size,
625 u64 *remaining_variable_storage_size,
626 u64 *maximum_variable_size);
627
AKASHI Takahiro1a82b342018-11-05 18:06:41 +0900628/*
629 * See section 3.1.3 in the v2.7 UEFI spec for more details on
630 * the layout of EFI_LOAD_OPTION. In short it is:
631 *
632 * typedef struct _EFI_LOAD_OPTION {
633 * UINT32 Attributes;
634 * UINT16 FilePathListLength;
635 * // CHAR16 Description[]; <-- variable length, NULL terminated
636 * // EFI_DEVICE_PATH_PROTOCOL FilePathList[];
637 * <-- FilePathListLength bytes
638 * // UINT8 OptionalData[];
639 * } EFI_LOAD_OPTION;
640 */
641struct efi_load_option {
642 u32 attributes;
643 u16 file_path_length;
644 u16 *label;
645 struct efi_device_path *file_path;
Heinrich Schuchardt39a1ff82019-04-29 13:51:45 +0200646 const u8 *optional_data;
AKASHI Takahiro1a82b342018-11-05 18:06:41 +0900647};
648
649void efi_deserialize_load_option(struct efi_load_option *lo, u8 *data);
650unsigned long efi_serialize_load_option(struct efi_load_option *lo, u8 **data);
AKASHI Takahiro6b95b382019-04-19 12:22:35 +0900651efi_status_t efi_bootmgr_load(efi_handle_t *handle);
Rob Clark9975fe92017-09-13 18:05:38 -0400652
Stephen Warren9b5e6392018-08-30 15:43:43 -0600653#else /* CONFIG_IS_ENABLED(EFI_LOADER) */
Alexander Grafbee91162016-03-04 01:09:59 +0100654
Alexander Graf50149ea2016-03-04 01:10:01 +0100655/* Without CONFIG_EFI_LOADER we don't have a runtime section, stub it out */
Alexander Graf3c63db92016-10-14 13:45:30 +0200656#define __efi_runtime_data
657#define __efi_runtime
Heinrich Schuchardt22c793e2018-03-03 15:28:59 +0100658static inline efi_status_t efi_add_runtime_mmio(void *mmio_ptr, u64 len)
659{
660 return EFI_SUCCESS;
661}
Alexander Graf50149ea2016-03-04 01:10:01 +0100662
Alexander Grafbee91162016-03-04 01:09:59 +0100663/* No loader configured, stub out EFI_ENTRY */
664static inline void efi_restore_gd(void) { }
Alexander Grafc07ad7c2016-04-11 16:16:19 +0200665static inline void efi_set_bootdev(const char *dev, const char *devnr,
666 const char *path) { }
Alexander Graf0efe1bc2016-05-06 21:01:01 +0200667static inline void efi_net_set_dhcp_ack(void *pkt, int len) { }
Heinrich Schuchardtc9a63f42018-04-05 11:56:21 +0200668static inline void efi_print_image_infos(void *pc) { }
Alexander Grafbee91162016-03-04 01:09:59 +0100669
Stephen Warren9b5e6392018-08-30 15:43:43 -0600670#endif /* CONFIG_IS_ENABLED(EFI_LOADER) */
Heinrich Schuchardtcd9e18d2017-10-18 18:13:07 +0200671
672#endif /* _EFI_LOADER_H */