1 // SPDX-License-Identifier: GPL-2.0+
3 * EFI application runtime services
5 * Copyright (c) 2016 Alexander Graf
13 #include <efi_loader.h>
16 #include <u-boot/crc.h>
18 /* For manual relocation support */
19 DECLARE_GLOBAL_DATA_PTR;
21 /* GUID of the runtime properties table */
22 static const efi_guid_t efi_rt_properties_table_guid =
23 EFI_RT_PROPERTIES_TABLE_GUID;
25 struct efi_runtime_mmio_list {
26 struct list_head link;
32 /* This list contains all runtime available mmio regions */
33 LIST_HEAD(efi_runtime_mmio);
35 static efi_status_t __efi_runtime EFIAPI efi_unimplemented(void);
38 * TODO(sjg@chromium.org): These defines and structures should come from the ELF
39 * header for each architecture (or a generic header) rather than being repeated
42 #if defined(__aarch64__)
43 #define R_RELATIVE R_AARCH64_RELATIVE
44 #define R_MASK 0xffffffffULL
46 #elif defined(__arm__)
47 #define R_RELATIVE R_ARM_RELATIVE
48 #define R_MASK 0xffULL
49 #elif defined(__i386__)
50 #define R_RELATIVE R_386_RELATIVE
51 #define R_MASK 0xffULL
52 #elif defined(__x86_64__)
53 #define R_RELATIVE R_X86_64_RELATIVE
54 #define R_MASK 0xffffffffULL
56 #elif defined(__riscv)
57 #define R_RELATIVE R_RISCV_RELATIVE
58 #define R_MASK 0xffULL
67 #if (__riscv_xlen == 32)
68 #define R_ABSOLUTE R_RISCV_32
70 #elif (__riscv_xlen == 64)
71 #define R_ABSOLUTE R_RISCV_64
74 #error unknown riscv target
77 #error Need to add relocation awareness
91 static __efi_runtime_data struct efi_mem_desc *efi_virtmap;
92 static __efi_runtime_data efi_uintn_t efi_descriptor_count;
93 static __efi_runtime_data efi_uintn_t efi_descriptor_size;
96 * EFI runtime code lives in two stages. In the first stage, U-Boot and an EFI
97 * payload are running concurrently at the same time. In this mode, we can
98 * handle a good number of runtime callbacks
102 * efi_init_runtime_supported() - create runtime properties table
104 * Create a configuration table specifying which services are available at
107 * Return: status code
109 efi_status_t efi_init_runtime_supported(void)
112 struct efi_rt_properties_table *rt_table;
114 ret = efi_allocate_pool(EFI_RUNTIME_SERVICES_DATA,
115 sizeof(struct efi_rt_properties_table),
117 if (ret != EFI_SUCCESS)
120 rt_table->version = EFI_RT_PROPERTIES_TABLE_VERSION;
121 rt_table->length = sizeof(struct efi_rt_properties_table);
122 rt_table->runtime_services_supported =
123 EFI_RT_SUPPORTED_SET_VIRTUAL_ADDRESS_MAP |
124 EFI_RT_SUPPORTED_CONVERT_POINTER;
127 * This value must be synced with efi_runtime_detach_list
128 * as well as efi_runtime_services.
130 #ifdef CONFIG_EFI_HAVE_RUNTIME_RESET
131 rt_table->runtime_services_supported |= EFI_RT_SUPPORTED_RESET_SYSTEM;
134 ret = efi_install_configuration_table(&efi_rt_properties_table_guid,
140 * efi_update_table_header_crc32() - Update crc32 in table header
144 void __efi_runtime efi_update_table_header_crc32(struct efi_table_hdr *table)
147 table->crc32 = crc32(0, (const unsigned char *)table,
152 * efi_reset_system_boottime() - reset system at boot time
154 * This function implements the ResetSystem() runtime service before
155 * SetVirtualAddressMap() is called.
157 * See the Unified Extensible Firmware Interface (UEFI) specification for
160 * @reset_type: type of reset to perform
161 * @reset_status: status code for the reset
162 * @data_size: size of reset_data
163 * @reset_data: information about the reset
165 static void EFIAPI efi_reset_system_boottime(
166 enum efi_reset_type reset_type,
167 efi_status_t reset_status,
168 unsigned long data_size, void *reset_data)
170 struct efi_event *evt;
172 EFI_ENTRY("%d %lx %lx %p", reset_type, reset_status, data_size,
176 list_for_each_entry(evt, &efi_events, link) {
179 &efi_guid_event_group_reset_system)) {
180 efi_signal_event(evt);
184 switch (reset_type) {
187 case EFI_RESET_PLATFORM_SPECIFIC:
188 do_reset(NULL, 0, 0, NULL);
190 case EFI_RESET_SHUTDOWN:
191 #ifdef CONFIG_CMD_POWEROFF
192 do_poweroff(NULL, 0, 0, NULL);
201 * efi_get_time_boottime() - get current time at boot time
203 * This function implements the GetTime runtime service before
204 * SetVirtualAddressMap() is called.
206 * See the Unified Extensible Firmware Interface (UEFI) specification
209 * @time: pointer to structure to receive current time
210 * @capabilities: pointer to structure to receive RTC properties
211 * Returns: status code
213 static efi_status_t EFIAPI efi_get_time_boottime(
214 struct efi_time *time,
215 struct efi_time_cap *capabilities)
217 #ifdef CONFIG_EFI_GET_TIME
218 efi_status_t ret = EFI_SUCCESS;
222 EFI_ENTRY("%p %p", time, capabilities);
225 ret = EFI_INVALID_PARAMETER;
228 if (uclass_get_device(UCLASS_RTC, 0, &dev) ||
229 dm_rtc_get(dev, &tm)) {
230 ret = EFI_UNSUPPORTED;
233 if (dm_rtc_get(dev, &tm)) {
234 ret = EFI_DEVICE_ERROR;
238 memset(time, 0, sizeof(*time));
239 time->year = tm.tm_year;
240 time->month = tm.tm_mon;
241 time->day = tm.tm_mday;
242 time->hour = tm.tm_hour;
243 time->minute = tm.tm_min;
244 time->second = tm.tm_sec;
247 EFI_TIME_ADJUST_DAYLIGHT | EFI_TIME_IN_DAYLIGHT;
248 time->timezone = EFI_UNSPECIFIED_TIMEZONE;
251 /* Set reasonable dummy values */
252 capabilities->resolution = 1; /* 1 Hz */
253 capabilities->accuracy = 100000000; /* 100 ppm */
254 capabilities->sets_to_zero = false;
257 return EFI_EXIT(ret);
259 EFI_ENTRY("%p %p", time, capabilities);
260 return EFI_EXIT(EFI_UNSUPPORTED);
264 #ifdef CONFIG_EFI_SET_TIME
267 * efi_validate_time() - checks if timestamp is valid
269 * @time: timestamp to validate
270 * Returns: 0 if timestamp is valid, 1 otherwise
272 static int efi_validate_time(struct efi_time *time)
275 time->year < 1900 || time->year > 9999 ||
276 !time->month || time->month > 12 || !time->day ||
277 time->day > rtc_month_days(time->month - 1, time->year) ||
278 time->hour > 23 || time->minute > 59 || time->second > 59 ||
279 time->nanosecond > 999999999 ||
281 ~(EFI_TIME_IN_DAYLIGHT | EFI_TIME_ADJUST_DAYLIGHT) ||
282 ((time->timezone < -1440 || time->timezone > 1440) &&
283 time->timezone != EFI_UNSPECIFIED_TIMEZONE));
289 * efi_set_time_boottime() - set current time
291 * This function implements the SetTime() runtime service before
292 * SetVirtualAddressMap() is called.
294 * See the Unified Extensible Firmware Interface (UEFI) specification
297 * @time: pointer to structure to with current time
298 * Returns: status code
300 static efi_status_t EFIAPI efi_set_time_boottime(struct efi_time *time)
302 #ifdef CONFIG_EFI_SET_TIME
303 efi_status_t ret = EFI_SUCCESS;
307 EFI_ENTRY("%p", time);
309 if (efi_validate_time(time)) {
310 ret = EFI_INVALID_PARAMETER;
314 if (uclass_get_device(UCLASS_RTC, 0, &dev)) {
315 ret = EFI_UNSUPPORTED;
319 memset(&tm, 0, sizeof(tm));
320 tm.tm_year = time->year;
321 tm.tm_mon = time->month;
322 tm.tm_mday = time->day;
323 tm.tm_hour = time->hour;
324 tm.tm_min = time->minute;
325 tm.tm_sec = time->second;
326 tm.tm_isdst = time->daylight ==
327 (EFI_TIME_ADJUST_DAYLIGHT | EFI_TIME_IN_DAYLIGHT);
328 /* Calculate day of week */
329 rtc_calc_weekday(&tm);
331 if (dm_rtc_set(dev, &tm))
332 ret = EFI_DEVICE_ERROR;
334 return EFI_EXIT(ret);
336 EFI_ENTRY("%p", time);
337 return EFI_EXIT(EFI_UNSUPPORTED);
341 * efi_reset_system() - reset system
343 * This function implements the ResetSystem() runtime service after
344 * SetVirtualAddressMap() is called. It only executes an endless loop.
345 * Boards may override the helpers below to implement reset functionality.
347 * See the Unified Extensible Firmware Interface (UEFI) specification for
350 * @reset_type: type of reset to perform
351 * @reset_status: status code for the reset
352 * @data_size: size of reset_data
353 * @reset_data: information about the reset
355 void __weak __efi_runtime EFIAPI efi_reset_system(
356 enum efi_reset_type reset_type,
357 efi_status_t reset_status,
358 unsigned long data_size, void *reset_data)
360 /* Nothing we can do */
365 * efi_reset_system_init() - initialize the reset driver
367 * Boards may override this function to initialize the reset driver.
369 efi_status_t __weak efi_reset_system_init(void)
375 * efi_get_time() - get current time
377 * This function implements the GetTime runtime service after
378 * SetVirtualAddressMap() is called. As the U-Boot driver are not available
379 * anymore only an error code is returned.
381 * See the Unified Extensible Firmware Interface (UEFI) specification
384 * @time: pointer to structure to receive current time
385 * @capabilities: pointer to structure to receive RTC properties
386 * Returns: status code
388 efi_status_t __weak __efi_runtime EFIAPI efi_get_time(
389 struct efi_time *time,
390 struct efi_time_cap *capabilities)
392 return EFI_UNSUPPORTED;
396 * efi_set_time() - set current time
398 * This function implements the SetTime runtime service after
399 * SetVirtualAddressMap() is called. As the U-Boot driver are not available
400 * anymore only an error code is returned.
402 * See the Unified Extensible Firmware Interface (UEFI) specification
405 * @time: pointer to structure to with current time
406 * Returns: status code
408 efi_status_t __weak __efi_runtime EFIAPI efi_set_time(struct efi_time *time)
410 return EFI_UNSUPPORTED;
414 * efi_is_runtime_service_pointer() - check if pointer points to runtime table
416 * @p: pointer to check
417 * Return: true if the pointer points to a service function pointer in the
420 static bool efi_is_runtime_service_pointer(void *p)
422 return (p >= (void *)&efi_runtime_services.get_time &&
423 p <= (void *)&efi_runtime_services.query_variable_info) ||
424 p == (void *)&efi_events.prev ||
425 p == (void *)&efi_events.next;
429 * efi_runtime_detach() - detach unimplemented runtime functions
431 void efi_runtime_detach(void)
433 efi_runtime_services.reset_system = efi_reset_system;
434 efi_runtime_services.get_time = efi_get_time;
435 efi_runtime_services.set_time = efi_set_time;
438 efi_update_table_header_crc32(&efi_runtime_services.hdr);
442 * efi_set_virtual_address_map_runtime() - change from physical to virtual
445 * This function implements the SetVirtualAddressMap() runtime service after
446 * it is first called.
448 * See the Unified Extensible Firmware Interface (UEFI) specification for
451 * @memory_map_size: size of the virtual map
452 * @descriptor_size: size of an entry in the map
453 * @descriptor_version: version of the map entries
454 * @virtmap: virtual address mapping information
455 * Return: status code EFI_UNSUPPORTED
457 static __efi_runtime efi_status_t EFIAPI efi_set_virtual_address_map_runtime(
458 efi_uintn_t memory_map_size,
459 efi_uintn_t descriptor_size,
460 uint32_t descriptor_version,
461 struct efi_mem_desc *virtmap)
463 return EFI_UNSUPPORTED;
467 * efi_convert_pointer_runtime() - convert from physical to virtual pointer
469 * This function implements the ConvertPointer() runtime service after
470 * the first call to SetVirtualAddressMap().
472 * See the Unified Extensible Firmware Interface (UEFI) specification for
475 * @debug_disposition: indicates if pointer may be converted to NULL
476 * @address: pointer to be converted
477 * Return: status code EFI_UNSUPPORTED
479 static __efi_runtime efi_status_t EFIAPI efi_convert_pointer_runtime(
480 efi_uintn_t debug_disposition, void **address)
482 return EFI_UNSUPPORTED;
486 * efi_convert_pointer() - convert from physical to virtual pointer
488 * This function implements the ConvertPointer() runtime service until
489 * the first call to SetVirtualAddressMap().
491 * See the Unified Extensible Firmware Interface (UEFI) specification for
494 * @debug_disposition: indicates if pointer may be converted to NULL
495 * @address: pointer to be converted
496 * Return: status code
498 static __efi_runtime efi_status_t EFIAPI efi_convert_pointer(
499 efi_uintn_t debug_disposition, void **address)
501 efi_physical_addr_t addr = (uintptr_t)*address;
503 efi_status_t ret = EFI_NOT_FOUND;
505 EFI_ENTRY("%zu %p", debug_disposition, address);
508 ret = EFI_UNSUPPORTED;
513 ret = EFI_INVALID_PARAMETER;
517 for (i = 0; i < efi_descriptor_count; i++) {
518 struct efi_mem_desc *map = (void *)efi_virtmap +
519 (efi_descriptor_size * i);
521 if (addr >= map->physical_start &&
522 (addr < map->physical_start
523 + (map->num_pages << EFI_PAGE_SHIFT))) {
524 *address = (void *)(uintptr_t)
525 (addr + map->virtual_start -
526 map->physical_start);
534 return EFI_EXIT(ret);
537 static __efi_runtime void efi_relocate_runtime_table(ulong offset)
542 /* Relocate the runtime services pointers */
543 patchoff = offset - gd->relocaddr;
544 for (pos = (void **)&efi_runtime_services.get_time;
545 pos <= (void **)&efi_runtime_services.query_variable_info; ++pos) {
551 * The entry for SetVirtualAddress() must point to a physical address.
552 * After the first execution the service must return EFI_UNSUPPORTED.
554 efi_runtime_services.set_virtual_address_map =
555 &efi_set_virtual_address_map_runtime;
558 * The entry for ConvertPointer() must point to a physical address.
559 * The service is not usable after SetVirtualAddress().
561 efi_runtime_services.convert_pointer = &efi_convert_pointer_runtime;
564 * TODO: Update UEFI variable RuntimeServicesSupported removing flags
565 * EFI_RT_SUPPORTED_SET_VIRTUAL_ADDRESS_MAP and
566 * EFI_RT_SUPPORTED_CONVERT_POINTER as required by the UEFI spec 2.8.
570 efi_update_table_header_crc32(&efi_runtime_services.hdr);
573 /* Relocate EFI runtime to uboot_reloc_base = offset */
574 void efi_runtime_relocate(ulong offset, struct efi_mem_desc *map)
577 struct elf_rela *rel = (void*)&__efi_runtime_rel_start;
579 struct elf_rel *rel = (void*)&__efi_runtime_rel_start;
580 static ulong lastoff = CONFIG_SYS_TEXT_BASE;
583 debug("%s: Relocating to offset=%lx\n", __func__, offset);
584 for (; (ulong)rel < (ulong)&__efi_runtime_rel_stop; rel++) {
585 ulong base = CONFIG_SYS_TEXT_BASE;
589 p = (void*)((ulong)rel->offset - base) + gd->relocaddr;
592 * The runtime services table is updated in
593 * efi_relocate_runtime_table()
595 if (map && efi_is_runtime_service_pointer(p))
598 debug("%s: rel->info=%#lx *p=%#lx rel->offset=%p\n", __func__,
599 rel->info, *p, rel->offset);
601 switch (rel->info & R_MASK) {
604 newaddr = rel->addend + offset - CONFIG_SYS_TEXT_BASE;
606 newaddr = *p - lastoff + offset;
611 ulong symidx = rel->info >> SYM_INDEX;
612 extern struct dyn_sym __dyn_sym_start[];
613 newaddr = __dyn_sym_start[symidx].addr + offset;
615 newaddr -= CONFIG_SYS_TEXT_BASE;
621 printf("%s: Unknown relocation type %llx\n",
622 __func__, rel->info & R_MASK);
626 /* Check if the relocation is inside bounds */
627 if (map && ((newaddr < map->virtual_start) ||
628 newaddr > (map->virtual_start +
629 (map->num_pages << EFI_PAGE_SHIFT)))) {
630 printf("%s: Relocation at %p is out of range (%lx)\n",
631 __func__, p, newaddr);
635 debug("%s: Setting %p to %lx\n", __func__, p, newaddr);
637 flush_dcache_range((ulong)p & ~(EFI_CACHELINE_SIZE - 1),
638 ALIGN((ulong)&p[1], EFI_CACHELINE_SIZE));
645 invalidate_icache_all();
649 * efi_set_virtual_address_map() - change from physical to virtual mapping
651 * This function implements the SetVirtualAddressMap() runtime service.
653 * See the Unified Extensible Firmware Interface (UEFI) specification for
656 * @memory_map_size: size of the virtual map
657 * @descriptor_size: size of an entry in the map
658 * @descriptor_version: version of the map entries
659 * @virtmap: virtual address mapping information
660 * Return: status code
662 static efi_status_t EFIAPI efi_set_virtual_address_map(
663 efi_uintn_t memory_map_size,
664 efi_uintn_t descriptor_size,
665 uint32_t descriptor_version,
666 struct efi_mem_desc *virtmap)
668 efi_uintn_t n = memory_map_size / descriptor_size;
670 efi_status_t ret = EFI_INVALID_PARAMETER;
671 int rt_code_sections = 0;
672 struct efi_event *event;
674 EFI_ENTRY("%zx %zx %x %p", memory_map_size, descriptor_size,
675 descriptor_version, virtmap);
677 if (descriptor_version != EFI_MEMORY_DESCRIPTOR_VERSION ||
678 descriptor_size < sizeof(struct efi_mem_desc))
681 efi_virtmap = virtmap;
682 efi_descriptor_size = descriptor_size;
683 efi_descriptor_count = n;
687 * Further down we are cheating. While really we should implement
688 * SetVirtualAddressMap() events and ConvertPointer() to allow
689 * dynamically loaded drivers to expose runtime services, we don't
692 * So let's ensure we see exactly one single runtime section, as
693 * that is the built-in one. If we see more (or less), someone must
694 * have tried adding or removing to that which we don't support yet.
695 * In that case, let's better fail rather than expose broken runtime
698 for (i = 0; i < n; i++) {
699 struct efi_mem_desc *map = (void*)virtmap +
700 (descriptor_size * i);
702 if (map->type == EFI_RUNTIME_SERVICES_CODE)
706 if (rt_code_sections != 1) {
708 * We expose exactly one single runtime code section, so
709 * something is definitely going wrong.
714 /* Notify EVT_SIGNAL_VIRTUAL_ADDRESS_CHANGE */
715 list_for_each_entry(event, &efi_events, link) {
716 if (event->notify_function)
717 EFI_CALL_VOID(event->notify_function(
718 event, event->notify_context));
721 /* Rebind mmio pointers */
722 for (i = 0; i < n; i++) {
723 struct efi_mem_desc *map = (void*)virtmap +
724 (descriptor_size * i);
725 struct list_head *lhandle;
726 efi_physical_addr_t map_start = map->physical_start;
727 efi_physical_addr_t map_len = map->num_pages << EFI_PAGE_SHIFT;
728 efi_physical_addr_t map_end = map_start + map_len;
729 u64 off = map->virtual_start - map_start;
731 /* Adjust all mmio pointers in this region */
732 list_for_each(lhandle, &efi_runtime_mmio) {
733 struct efi_runtime_mmio_list *lmmio;
735 lmmio = list_entry(lhandle,
736 struct efi_runtime_mmio_list,
738 if ((map_start <= lmmio->paddr) &&
739 (map_end >= lmmio->paddr)) {
740 uintptr_t new_addr = lmmio->paddr + off;
741 *lmmio->ptr = (void *)new_addr;
744 if ((map_start <= (uintptr_t)systab.tables) &&
745 (map_end >= (uintptr_t)systab.tables)) {
746 char *ptr = (char *)systab.tables;
749 systab.tables = (struct efi_configuration_table *)ptr;
753 /* Relocate the runtime. See TODO above */
754 for (i = 0; i < n; i++) {
755 struct efi_mem_desc *map;
757 map = (void*)virtmap + (descriptor_size * i);
758 if (map->type == EFI_RUNTIME_SERVICES_CODE) {
759 ulong new_offset = map->virtual_start -
760 map->physical_start + gd->relocaddr;
762 efi_relocate_runtime_table(new_offset);
763 efi_runtime_relocate(new_offset, map);
770 return EFI_EXIT(ret);
774 * efi_add_runtime_mmio() - add memory-mapped IO region
776 * This function adds a memory-mapped IO region to the memory map to make it
777 * available at runtime.
779 * @mmio_ptr: pointer to a pointer to the start of the memory-mapped
781 * @len: size of the memory-mapped IO region
782 * Returns: status code
784 efi_status_t efi_add_runtime_mmio(void *mmio_ptr, u64 len)
786 struct efi_runtime_mmio_list *newmmio;
787 u64 pages = (len + EFI_PAGE_MASK) >> EFI_PAGE_SHIFT;
788 uint64_t addr = *(uintptr_t *)mmio_ptr;
791 ret = efi_add_memory_map(addr, pages, EFI_MMAP_IO, false);
792 if (ret != EFI_SUCCESS)
793 return EFI_OUT_OF_RESOURCES;
795 newmmio = calloc(1, sizeof(*newmmio));
797 return EFI_OUT_OF_RESOURCES;
798 newmmio->ptr = mmio_ptr;
799 newmmio->paddr = *(uintptr_t *)mmio_ptr;
801 list_add_tail(&newmmio->link, &efi_runtime_mmio);
807 * In the second stage, U-Boot has disappeared. To isolate our runtime code
808 * that at this point still exists from the rest, we put it into a special
813 * This means that we can not rely on any code outside of this file in any
814 * function or variable below this line.
816 * Please keep everything fully self-contained and annotated with
817 * __efi_runtime and __efi_runtime_data markers.
821 * Relocate the EFI runtime stub to a different place. We need to call this
822 * the first time we expose the runtime interface to a user and on set virtual
827 * efi_unimplemented() - replacement function, returns EFI_UNSUPPORTED
829 * This function is used after SetVirtualAddressMap() is called as replacement
830 * for services that are not available anymore due to constraints of the U-Boot
833 * Return: EFI_UNSUPPORTED
835 static efi_status_t __efi_runtime EFIAPI efi_unimplemented(void)
837 return EFI_UNSUPPORTED;
841 * efi_update_capsule() - process information from operating system
843 * This function implements the UpdateCapsule() runtime service.
845 * See the Unified Extensible Firmware Interface (UEFI) specification for
848 * @capsule_header_array: pointer to array of virtual pointers
849 * @capsule_count: number of pointers in capsule_header_array
850 * @scatter_gather_list: pointer to arry of physical pointers
851 * Returns: status code
853 efi_status_t __efi_runtime EFIAPI efi_update_capsule(
854 struct efi_capsule_header **capsule_header_array,
855 efi_uintn_t capsule_count,
856 u64 scatter_gather_list)
858 return EFI_UNSUPPORTED;
862 * efi_query_capsule_caps() - check if capsule is supported
864 * This function implements the QueryCapsuleCapabilities() runtime service.
866 * See the Unified Extensible Firmware Interface (UEFI) specification for
869 * @capsule_header_array: pointer to array of virtual pointers
870 * @capsule_count: number of pointers in capsule_header_array
871 * @maximum_capsule_size: maximum capsule size
872 * @reset_type: type of reset needed for capsule update
873 * Returns: status code
875 efi_status_t __efi_runtime EFIAPI efi_query_capsule_caps(
876 struct efi_capsule_header **capsule_header_array,
877 efi_uintn_t capsule_count,
878 u64 *maximum_capsule_size,
881 return EFI_UNSUPPORTED;
884 struct efi_runtime_services __efi_runtime_data efi_runtime_services = {
886 .signature = EFI_RUNTIME_SERVICES_SIGNATURE,
887 .revision = EFI_SPECIFICATION_VERSION,
888 .headersize = sizeof(struct efi_runtime_services),
890 .get_time = &efi_get_time_boottime,
891 .set_time = &efi_set_time_boottime,
892 .get_wakeup_time = (void *)&efi_unimplemented,
893 .set_wakeup_time = (void *)&efi_unimplemented,
894 .set_virtual_address_map = &efi_set_virtual_address_map,
895 .convert_pointer = efi_convert_pointer,
896 .get_variable = efi_get_variable,
897 .get_next_variable_name = efi_get_next_variable_name,
898 .set_variable = efi_set_variable,
899 .get_next_high_mono_count = (void *)&efi_unimplemented,
900 .reset_system = &efi_reset_system_boottime,
901 .update_capsule = efi_update_capsule,
902 .query_capsule_caps = efi_query_capsule_caps,
903 .query_variable_info = efi_query_variable_info,