2 * EFI application boot time services
4 * Copyright (c) 2016 Alexander Graf
6 * SPDX-License-Identifier: GPL-2.0+
10 #include <efi_loader.h>
12 #include <asm/global_data.h>
13 #include <libfdt_env.h>
14 #include <u-boot/crc.h>
19 DECLARE_GLOBAL_DATA_PTR;
21 /* This list contains all the EFI objects our payload has access to */
22 LIST_HEAD(efi_obj_list);
25 * If we're running on nasty systems (32bit ARM booting into non-EFI Linux)
26 * we need to do trickery with caches. Since we don't want to break the EFI
27 * aware boot path, only apply hacks when loading exiting directly (breaking
28 * direct Linux EFI booting along the way - oh well).
30 static bool efi_is_direct_boot = true;
33 * EFI can pass arbitrary additional "tables" containing vendor specific
34 * information to the payload. One such table is the FDT table which contains
35 * a pointer to a flattened device tree blob.
37 * In most cases we want to pass an FDT to the payload, so reserve one slot of
38 * config table space for it. The pointer gets populated by do_bootefi_exec().
40 static struct efi_configuration_table __efi_runtime_data efi_conf_table[2];
44 * The "gd" pointer lives in a register on ARM and AArch64 that we declare
45 * fixed when compiling U-Boot. However, the payload does not know about that
46 * restriction so we need to manually swap its and our view of that register on
47 * EFI callback entry/exit.
49 static volatile void *efi_gd, *app_gd;
52 /* Called from do_bootefi_exec() */
53 void efi_save_gd(void)
60 /* Called on every callback entry */
61 void efi_restore_gd(void)
64 /* Only restore if we're already in EFI context */
74 /* Called on every callback exit */
75 efi_status_t efi_exit_func(efi_status_t ret)
84 static efi_status_t efi_unsupported(const char *funcname)
86 debug("EFI: App called into unimplemented function %s\n", funcname);
87 return EFI_EXIT(EFI_UNSUPPORTED);
90 static int guidcmp(const efi_guid_t *g1, const efi_guid_t *g2)
92 return memcmp(g1, g2, sizeof(efi_guid_t));
95 static unsigned long EFIAPI efi_raise_tpl(unsigned long new_tpl)
97 EFI_ENTRY("0x%lx", new_tpl);
101 static void EFIAPI efi_restore_tpl(unsigned long old_tpl)
103 EFI_ENTRY("0x%lx", old_tpl);
104 EFI_EXIT(efi_unsupported(__func__));
107 static efi_status_t EFIAPI efi_allocate_pages_ext(int type, int memory_type,
113 EFI_ENTRY("%d, %d, 0x%lx, %p", type, memory_type, pages, memory);
114 r = efi_allocate_pages(type, memory_type, pages, memory);
118 static efi_status_t EFIAPI efi_free_pages_ext(uint64_t memory,
123 EFI_ENTRY("%"PRIx64", 0x%lx", memory, pages);
124 r = efi_free_pages(memory, pages);
128 static efi_status_t EFIAPI efi_get_memory_map_ext(
129 unsigned long *memory_map_size,
130 struct efi_mem_desc *memory_map,
131 unsigned long *map_key,
132 unsigned long *descriptor_size,
133 uint32_t *descriptor_version)
137 EFI_ENTRY("%p, %p, %p, %p, %p", memory_map_size, memory_map,
138 map_key, descriptor_size, descriptor_version);
139 r = efi_get_memory_map(memory_map_size, memory_map, map_key,
140 descriptor_size, descriptor_version);
144 static efi_status_t EFIAPI efi_allocate_pool_ext(int pool_type,
150 EFI_ENTRY("%d, %ld, %p", pool_type, size, buffer);
151 r = efi_allocate_pool(pool_type, size, buffer);
155 static efi_status_t EFIAPI efi_free_pool_ext(void *buffer)
159 EFI_ENTRY("%p", buffer);
160 r = efi_free_pool(buffer);
165 * Our event capabilities are very limited. Only support a single
166 * event to exist, so we don't need to maintain lists.
169 enum efi_event_type type;
173 unsigned long notify_tpl;
174 void (EFIAPI *notify_function) (void *event, void *context);
175 void *notify_context;
177 /* Disable timers on bootup */
178 .trigger_next = -1ULL,
181 static efi_status_t EFIAPI efi_create_event(
182 enum efi_event_type type, ulong notify_tpl,
183 void (EFIAPI *notify_function) (void *event,
185 void *notify_context, void **event)
187 EFI_ENTRY("%d, 0x%lx, %p, %p", type, notify_tpl, notify_function,
189 if (efi_event.notify_function) {
190 /* We only support one event at a time */
191 return EFI_EXIT(EFI_OUT_OF_RESOURCES);
195 return EFI_EXIT(EFI_INVALID_PARAMETER);
197 if ((type & EVT_NOTIFY_SIGNAL) && (type & EVT_NOTIFY_WAIT))
198 return EFI_EXIT(EFI_INVALID_PARAMETER);
200 if ((type & (EVT_NOTIFY_SIGNAL|EVT_NOTIFY_WAIT)) &&
201 notify_function == NULL)
202 return EFI_EXIT(EFI_INVALID_PARAMETER);
204 efi_event.type = type;
205 efi_event.notify_tpl = notify_tpl;
206 efi_event.notify_function = notify_function;
207 efi_event.notify_context = notify_context;
210 return EFI_EXIT(EFI_SUCCESS);
214 * Our timers have to work without interrupts, so we check whenever keyboard
215 * input or disk accesses happen if enough time elapsed for it to fire.
217 void efi_timer_check(void)
219 u64 now = timer_get_us();
221 if (now >= efi_event.trigger_next) {
223 if (efi_event.trigger_type == EFI_TIMER_PERIODIC)
224 efi_event.trigger_next += efi_event.trigger_time / 10;
225 if (efi_event.type & (EVT_NOTIFY_WAIT | EVT_NOTIFY_SIGNAL))
226 efi_event.notify_function(&efi_event,
227 efi_event.notify_context);
233 static efi_status_t EFIAPI efi_set_timer(void *event, int type,
234 uint64_t trigger_time)
236 /* We don't have 64bit division available everywhere, so limit timer
237 * distances to 32bit bits. */
238 u32 trigger32 = trigger_time;
240 EFI_ENTRY("%p, %d, %"PRIx64, event, type, trigger_time);
242 if (trigger32 < trigger_time) {
243 printf("WARNING: Truncating timer from %"PRIx64" to %x\n",
244 trigger_time, trigger32);
247 if (event != &efi_event) {
248 /* We only support one event at a time */
249 return EFI_EXIT(EFI_INVALID_PARAMETER);
254 efi_event.trigger_next = -1ULL;
256 case EFI_TIMER_PERIODIC:
257 case EFI_TIMER_RELATIVE:
258 efi_event.trigger_next = timer_get_us() + (trigger32 / 10);
261 return EFI_EXIT(EFI_INVALID_PARAMETER);
263 efi_event.trigger_type = type;
264 efi_event.trigger_time = trigger_time;
266 return EFI_EXIT(EFI_SUCCESS);
269 static efi_status_t EFIAPI efi_wait_for_event(unsigned long num_events,
270 void *event, unsigned long *index)
274 EFI_ENTRY("%ld, %p, %p", num_events, event, index);
276 now = timer_get_us();
277 while (now < efi_event.trigger_next) { }
280 return EFI_EXIT(EFI_SUCCESS);
283 static efi_status_t EFIAPI efi_signal_event(void *event)
285 EFI_ENTRY("%p", event);
286 return EFI_EXIT(EFI_SUCCESS);
289 static efi_status_t EFIAPI efi_close_event(void *event)
291 EFI_ENTRY("%p", event);
292 efi_event.trigger_next = -1ULL;
293 return EFI_EXIT(EFI_SUCCESS);
296 static efi_status_t EFIAPI efi_check_event(void *event)
298 EFI_ENTRY("%p", event);
299 return EFI_EXIT(EFI_NOT_READY);
302 static efi_status_t EFIAPI efi_install_protocol_interface(void **handle,
303 efi_guid_t *protocol, int protocol_interface_type,
304 void *protocol_interface)
306 struct list_head *lhandle;
310 if (!handle || !protocol ||
311 protocol_interface_type != EFI_NATIVE_INTERFACE) {
312 r = EFI_INVALID_PARAMETER;
316 /* Create new handle if requested. */
318 r = EFI_OUT_OF_RESOURCES;
322 list_for_each(lhandle, &efi_obj_list) {
323 struct efi_object *efiobj;
324 efiobj = list_entry(lhandle, struct efi_object, link);
326 if (efiobj->handle != *handle)
328 /* Check if protocol is already installed on the handle. */
329 for (i = 0; i < ARRAY_SIZE(efiobj->protocols); i++) {
330 struct efi_handler *handler = &efiobj->protocols[i];
334 if (!guidcmp(handler->guid, protocol)) {
335 r = EFI_INVALID_PARAMETER;
339 /* Install protocol in first empty slot. */
340 for (i = 0; i < ARRAY_SIZE(efiobj->protocols); i++) {
341 struct efi_handler *handler = &efiobj->protocols[i];
346 handler->guid = protocol;
347 handler->protocol_interface = protocol_interface;
351 r = EFI_OUT_OF_RESOURCES;
354 r = EFI_INVALID_PARAMETER;
359 static efi_status_t EFIAPI efi_install_protocol_interface_ext(void **handle,
360 efi_guid_t *protocol, int protocol_interface_type,
361 void *protocol_interface)
363 EFI_ENTRY("%p, %p, %d, %p", handle, protocol, protocol_interface_type,
366 return EFI_EXIT(efi_install_protocol_interface(handle, protocol,
367 protocol_interface_type,
368 protocol_interface));
371 static efi_status_t EFIAPI efi_reinstall_protocol_interface(void *handle,
372 efi_guid_t *protocol, void *old_interface,
375 EFI_ENTRY("%p, %p, %p, %p", handle, protocol, old_interface,
377 return EFI_EXIT(EFI_ACCESS_DENIED);
380 static efi_status_t EFIAPI efi_uninstall_protocol_interface(void *handle,
381 efi_guid_t *protocol, void *protocol_interface)
383 struct list_head *lhandle;
385 efi_status_t r = EFI_NOT_FOUND;
387 EFI_ENTRY("%p, %p, %p", handle, protocol, protocol_interface);
389 if (!handle || !protocol) {
390 r = EFI_INVALID_PARAMETER;
394 list_for_each(lhandle, &efi_obj_list) {
395 struct efi_object *efiobj;
396 efiobj = list_entry(lhandle, struct efi_object, link);
398 if (efiobj->handle != handle)
401 for (i = 0; i < ARRAY_SIZE(efiobj->protocols); i++) {
402 struct efi_handler *handler = &efiobj->protocols[i];
403 const efi_guid_t *hprotocol = handler->guid;
407 if (!guidcmp(hprotocol, protocol)) {
408 if (handler->protocol_interface) {
409 r = EFI_ACCESS_DENIED;
423 static efi_status_t EFIAPI efi_register_protocol_notify(efi_guid_t *protocol,
427 EFI_ENTRY("%p, %p, %p", protocol, event, registration);
428 return EFI_EXIT(EFI_OUT_OF_RESOURCES);
431 static int efi_search(enum efi_locate_search_type search_type,
432 efi_guid_t *protocol, void *search_key,
433 struct efi_object *efiobj)
437 switch (search_type) {
440 case by_register_notify:
443 for (i = 0; i < ARRAY_SIZE(efiobj->protocols); i++) {
444 const efi_guid_t *guid = efiobj->protocols[i].guid;
445 if (guid && !guidcmp(guid, protocol))
454 static efi_status_t EFIAPI efi_locate_handle(
455 enum efi_locate_search_type search_type,
456 efi_guid_t *protocol, void *search_key,
457 unsigned long *buffer_size, efi_handle_t *buffer)
459 struct list_head *lhandle;
460 unsigned long size = 0;
462 EFI_ENTRY("%d, %p, %p, %p, %p", search_type, protocol, search_key,
463 buffer_size, buffer);
465 /* Count how much space we need */
466 list_for_each(lhandle, &efi_obj_list) {
467 struct efi_object *efiobj;
468 efiobj = list_entry(lhandle, struct efi_object, link);
469 if (!efi_search(search_type, protocol, search_key, efiobj)) {
470 size += sizeof(void*);
474 if (*buffer_size < size) {
476 return EFI_EXIT(EFI_BUFFER_TOO_SMALL);
479 /* Then fill the array */
480 list_for_each(lhandle, &efi_obj_list) {
481 struct efi_object *efiobj;
482 efiobj = list_entry(lhandle, struct efi_object, link);
483 if (!efi_search(search_type, protocol, search_key, efiobj)) {
484 *(buffer++) = efiobj->handle;
489 return EFI_EXIT(EFI_SUCCESS);
492 static efi_status_t EFIAPI efi_locate_device_path(efi_guid_t *protocol,
493 struct efi_device_path **device_path,
494 efi_handle_t *device)
496 EFI_ENTRY("%p, %p, %p", protocol, device_path, device);
497 return EFI_EXIT(EFI_NOT_FOUND);
500 efi_status_t efi_install_configuration_table(const efi_guid_t *guid, void *table)
504 /* Check for guid override */
505 for (i = 0; i < systab.nr_tables; i++) {
506 if (!guidcmp(guid, &efi_conf_table[i].guid)) {
507 efi_conf_table[i].table = table;
512 /* No override, check for overflow */
513 if (i >= ARRAY_SIZE(efi_conf_table))
514 return EFI_OUT_OF_RESOURCES;
516 /* Add a new entry */
517 memcpy(&efi_conf_table[i].guid, guid, sizeof(*guid));
518 efi_conf_table[i].table = table;
519 systab.nr_tables = i + 1;
524 static efi_status_t EFIAPI efi_install_configuration_table_ext(efi_guid_t *guid,
527 EFI_ENTRY("%p, %p", guid, table);
528 return EFI_EXIT(efi_install_configuration_table(guid, table));
531 static efi_status_t EFIAPI efi_load_image(bool boot_policy,
532 efi_handle_t parent_image,
533 struct efi_device_path *file_path,
535 unsigned long source_size,
536 efi_handle_t *image_handle)
538 static struct efi_object loaded_image_info_obj = {
541 .guid = &efi_guid_loaded_image,
545 struct efi_loaded_image *info;
546 struct efi_object *obj;
548 EFI_ENTRY("%d, %p, %p, %p, %ld, %p", boot_policy, parent_image,
549 file_path, source_buffer, source_size, image_handle);
550 info = malloc(sizeof(*info));
551 loaded_image_info_obj.protocols[0].protocol_interface = info;
552 obj = malloc(sizeof(loaded_image_info_obj));
553 memset(info, 0, sizeof(*info));
554 memcpy(obj, &loaded_image_info_obj, sizeof(loaded_image_info_obj));
556 info->file_path = file_path;
557 info->reserved = efi_load_pe(source_buffer, info);
558 if (!info->reserved) {
561 return EFI_EXIT(EFI_UNSUPPORTED);
564 *image_handle = info;
565 list_add_tail(&obj->link, &efi_obj_list);
567 return EFI_EXIT(EFI_SUCCESS);
570 static efi_status_t EFIAPI efi_start_image(efi_handle_t image_handle,
571 unsigned long *exit_data_size,
574 ulong (*entry)(void *image_handle, struct efi_system_table *st);
575 struct efi_loaded_image *info = image_handle;
577 EFI_ENTRY("%p, %p, %p", image_handle, exit_data_size, exit_data);
578 entry = info->reserved;
580 efi_is_direct_boot = false;
582 /* call the image! */
583 if (setjmp(&info->exit_jmp)) {
584 /* We returned from the child image */
585 return EFI_EXIT(info->exit_status);
588 entry(image_handle, &systab);
590 /* Should usually never get here */
591 return EFI_EXIT(EFI_SUCCESS);
594 static efi_status_t EFIAPI efi_exit(efi_handle_t image_handle,
595 efi_status_t exit_status, unsigned long exit_data_size,
598 struct efi_loaded_image *loaded_image_info = (void*)image_handle;
600 EFI_ENTRY("%p, %ld, %ld, %p", image_handle, exit_status,
601 exit_data_size, exit_data);
603 loaded_image_info->exit_status = exit_status;
604 longjmp(&loaded_image_info->exit_jmp, 1);
606 panic("EFI application exited");
609 static struct efi_object *efi_search_obj(void *handle)
611 struct list_head *lhandle;
613 list_for_each(lhandle, &efi_obj_list) {
614 struct efi_object *efiobj;
615 efiobj = list_entry(lhandle, struct efi_object, link);
616 if (efiobj->handle == handle)
623 static efi_status_t EFIAPI efi_unload_image(void *image_handle)
625 struct efi_object *efiobj;
627 EFI_ENTRY("%p", image_handle);
628 efiobj = efi_search_obj(image_handle);
630 list_del(&efiobj->link);
632 return EFI_EXIT(EFI_SUCCESS);
635 static void efi_exit_caches(void)
637 #if defined(CONFIG_ARM) && !defined(CONFIG_ARM64)
639 * Grub on 32bit ARM needs to have caches disabled before jumping into
640 * a zImage, but does not know of all cache layers. Give it a hand.
642 if (efi_is_direct_boot)
643 cleanup_before_linux();
647 static efi_status_t EFIAPI efi_exit_boot_services(void *image_handle,
648 unsigned long map_key)
650 EFI_ENTRY("%p, %ld", image_handle, map_key);
652 board_quiesce_devices();
654 /* Fix up caches for EFI payloads if necessary */
657 /* This stops all lingering devices */
658 bootm_disable_interrupts();
660 /* Give the payload some time to boot */
663 return EFI_EXIT(EFI_SUCCESS);
666 static efi_status_t EFIAPI efi_get_next_monotonic_count(uint64_t *count)
668 static uint64_t mono = 0;
669 EFI_ENTRY("%p", count);
671 return EFI_EXIT(EFI_SUCCESS);
674 static efi_status_t EFIAPI efi_stall(unsigned long microseconds)
676 EFI_ENTRY("%ld", microseconds);
677 udelay(microseconds);
678 return EFI_EXIT(EFI_SUCCESS);
681 static efi_status_t EFIAPI efi_set_watchdog_timer(unsigned long timeout,
682 uint64_t watchdog_code,
683 unsigned long data_size,
684 uint16_t *watchdog_data)
686 EFI_ENTRY("%ld, 0x%"PRIx64", %ld, %p", timeout, watchdog_code,
687 data_size, watchdog_data);
688 return EFI_EXIT(efi_unsupported(__func__));
691 static efi_status_t EFIAPI efi_connect_controller(
692 efi_handle_t controller_handle,
693 efi_handle_t *driver_image_handle,
694 struct efi_device_path *remain_device_path,
697 EFI_ENTRY("%p, %p, %p, %d", controller_handle, driver_image_handle,
698 remain_device_path, recursive);
699 return EFI_EXIT(EFI_NOT_FOUND);
702 static efi_status_t EFIAPI efi_disconnect_controller(void *controller_handle,
703 void *driver_image_handle,
706 EFI_ENTRY("%p, %p, %p", controller_handle, driver_image_handle,
708 return EFI_EXIT(EFI_INVALID_PARAMETER);
711 static efi_status_t EFIAPI efi_close_protocol(void *handle,
712 efi_guid_t *protocol,
714 void *controller_handle)
716 EFI_ENTRY("%p, %p, %p, %p", handle, protocol, agent_handle,
718 return EFI_EXIT(EFI_NOT_FOUND);
721 static efi_status_t EFIAPI efi_open_protocol_information(efi_handle_t handle,
722 efi_guid_t *protocol,
723 struct efi_open_protocol_info_entry **entry_buffer,
724 unsigned long *entry_count)
726 EFI_ENTRY("%p, %p, %p, %p", handle, protocol, entry_buffer,
728 return EFI_EXIT(EFI_NOT_FOUND);
731 static efi_status_t EFIAPI efi_protocols_per_handle(void *handle,
732 efi_guid_t ***protocol_buffer,
733 unsigned long *protocol_buffer_count)
735 EFI_ENTRY("%p, %p, %p", handle, protocol_buffer,
736 protocol_buffer_count);
737 return EFI_EXIT(EFI_OUT_OF_RESOURCES);
740 static efi_status_t EFIAPI efi_locate_handle_buffer(
741 enum efi_locate_search_type search_type,
742 efi_guid_t *protocol, void *search_key,
743 unsigned long *no_handles, efi_handle_t **buffer)
745 EFI_ENTRY("%d, %p, %p, %p, %p", search_type, protocol, search_key,
747 return EFI_EXIT(EFI_NOT_FOUND);
750 static struct efi_class_map efi_class_maps[] = {
752 .guid = &efi_guid_console_control,
753 .interface = &efi_console_control
757 static efi_status_t EFIAPI efi_locate_protocol(efi_guid_t *protocol,
759 void **protocol_interface)
763 EFI_ENTRY("%p, %p, %p", protocol, registration, protocol_interface);
764 for (i = 0; i < ARRAY_SIZE(efi_class_maps); i++) {
765 struct efi_class_map *curmap = &efi_class_maps[i];
766 if (!guidcmp(protocol, curmap->guid)) {
767 *protocol_interface = (void*)curmap->interface;
768 return EFI_EXIT(EFI_SUCCESS);
772 return EFI_EXIT(EFI_NOT_FOUND);
775 static efi_status_t EFIAPI efi_install_multiple_protocol_interfaces(
778 EFI_ENTRY("%p", handle);
779 return EFI_EXIT(EFI_OUT_OF_RESOURCES);
782 static efi_status_t EFIAPI efi_uninstall_multiple_protocol_interfaces(
785 EFI_ENTRY("%p", handle);
786 return EFI_EXIT(EFI_INVALID_PARAMETER);
789 static efi_status_t EFIAPI efi_calculate_crc32(void *data,
790 unsigned long data_size,
793 EFI_ENTRY("%p, %ld", data, data_size);
794 *crc32_p = crc32(0, data, data_size);
795 return EFI_EXIT(EFI_SUCCESS);
798 static void EFIAPI efi_copy_mem(void *destination, void *source,
799 unsigned long length)
801 EFI_ENTRY("%p, %p, %ld", destination, source, length);
802 memcpy(destination, source, length);
805 static void EFIAPI efi_set_mem(void *buffer, unsigned long size, uint8_t value)
807 EFI_ENTRY("%p, %ld, 0x%x", buffer, size, value);
808 memset(buffer, value, size);
811 static efi_status_t EFIAPI efi_open_protocol(
812 void *handle, efi_guid_t *protocol,
813 void **protocol_interface, void *agent_handle,
814 void *controller_handle, uint32_t attributes)
816 struct list_head *lhandle;
818 efi_status_t r = EFI_INVALID_PARAMETER;
820 EFI_ENTRY("%p, %p, %p, %p, %p, 0x%x", handle, protocol,
821 protocol_interface, agent_handle, controller_handle,
824 if (!handle || !protocol ||
825 (!protocol_interface && attributes !=
826 EFI_OPEN_PROTOCOL_TEST_PROTOCOL)) {
830 switch (attributes) {
831 case EFI_OPEN_PROTOCOL_BY_HANDLE_PROTOCOL:
832 case EFI_OPEN_PROTOCOL_GET_PROTOCOL:
833 case EFI_OPEN_PROTOCOL_TEST_PROTOCOL:
835 case EFI_OPEN_PROTOCOL_BY_CHILD_CONTROLLER:
836 if (controller_handle == handle)
838 case EFI_OPEN_PROTOCOL_BY_DRIVER:
839 case EFI_OPEN_PROTOCOL_BY_DRIVER | EFI_OPEN_PROTOCOL_EXCLUSIVE:
840 if (controller_handle == NULL)
842 case EFI_OPEN_PROTOCOL_EXCLUSIVE:
843 if (agent_handle == NULL)
850 list_for_each(lhandle, &efi_obj_list) {
851 struct efi_object *efiobj;
852 efiobj = list_entry(lhandle, struct efi_object, link);
854 if (efiobj->handle != handle)
857 for (i = 0; i < ARRAY_SIZE(efiobj->protocols); i++) {
858 struct efi_handler *handler = &efiobj->protocols[i];
859 const efi_guid_t *hprotocol = handler->guid;
862 if (!guidcmp(hprotocol, protocol)) {
864 EFI_OPEN_PROTOCOL_TEST_PROTOCOL) {
865 *protocol_interface =
866 handler->protocol_interface;
881 static efi_status_t EFIAPI efi_handle_protocol(void *handle,
882 efi_guid_t *protocol,
883 void **protocol_interface)
885 return efi_open_protocol(handle, protocol, protocol_interface, NULL,
886 NULL, EFI_OPEN_PROTOCOL_BY_HANDLE_PROTOCOL);
889 static const struct efi_boot_services efi_boot_services = {
891 .headersize = sizeof(struct efi_table_hdr),
893 .raise_tpl = efi_raise_tpl,
894 .restore_tpl = efi_restore_tpl,
895 .allocate_pages = efi_allocate_pages_ext,
896 .free_pages = efi_free_pages_ext,
897 .get_memory_map = efi_get_memory_map_ext,
898 .allocate_pool = efi_allocate_pool_ext,
899 .free_pool = efi_free_pool_ext,
900 .create_event = efi_create_event,
901 .set_timer = efi_set_timer,
902 .wait_for_event = efi_wait_for_event,
903 .signal_event = efi_signal_event,
904 .close_event = efi_close_event,
905 .check_event = efi_check_event,
906 .install_protocol_interface = efi_install_protocol_interface_ext,
907 .reinstall_protocol_interface = efi_reinstall_protocol_interface,
908 .uninstall_protocol_interface = efi_uninstall_protocol_interface,
909 .handle_protocol = efi_handle_protocol,
911 .register_protocol_notify = efi_register_protocol_notify,
912 .locate_handle = efi_locate_handle,
913 .locate_device_path = efi_locate_device_path,
914 .install_configuration_table = efi_install_configuration_table_ext,
915 .load_image = efi_load_image,
916 .start_image = efi_start_image,
918 .unload_image = efi_unload_image,
919 .exit_boot_services = efi_exit_boot_services,
920 .get_next_monotonic_count = efi_get_next_monotonic_count,
922 .set_watchdog_timer = efi_set_watchdog_timer,
923 .connect_controller = efi_connect_controller,
924 .disconnect_controller = efi_disconnect_controller,
925 .open_protocol = efi_open_protocol,
926 .close_protocol = efi_close_protocol,
927 .open_protocol_information = efi_open_protocol_information,
928 .protocols_per_handle = efi_protocols_per_handle,
929 .locate_handle_buffer = efi_locate_handle_buffer,
930 .locate_protocol = efi_locate_protocol,
931 .install_multiple_protocol_interfaces = efi_install_multiple_protocol_interfaces,
932 .uninstall_multiple_protocol_interfaces = efi_uninstall_multiple_protocol_interfaces,
933 .calculate_crc32 = efi_calculate_crc32,
934 .copy_mem = efi_copy_mem,
935 .set_mem = efi_set_mem,
939 static uint16_t __efi_runtime_data firmware_vendor[] =
940 { 'D','a','s',' ','U','-','b','o','o','t',0 };
942 struct efi_system_table __efi_runtime_data systab = {
944 .signature = EFI_SYSTEM_TABLE_SIGNATURE,
945 .revision = 0x20005, /* 2.5 */
946 .headersize = sizeof(struct efi_table_hdr),
948 .fw_vendor = (long)firmware_vendor,
949 .con_in = (void*)&efi_con_in,
950 .con_out = (void*)&efi_con_out,
951 .std_err = (void*)&efi_con_out,
952 .runtime = (void*)&efi_runtime_services,
953 .boottime = (void*)&efi_boot_services,
955 .tables = (void*)efi_conf_table,