efistub.h

   1/* SPDX-License-Identifier: GPL-2.0 */
   2
   3#ifndef _DRIVERS_FIRMWARE_EFI_EFISTUB_H
   4#define _DRIVERS_FIRMWARE_EFI_EFISTUB_H
   5
   6#include <linux/compiler.h>
   7#include <linux/cleanup.h>
   8#include <linux/efi.h>
   9#include <linux/kernel.h>
  10#include <linux/kern_levels.h>
  11#include <linux/types.h>
  12#include <asm/efi.h>
  13
  14/*
  15 * __init annotations should not be used in the EFI stub, since the code is
  16 * either included in the decompressor (x86, ARM) where they have no effect,
  17 * or the whole stub is __init annotated at the section level (arm64), by
  18 * renaming the sections, in which case the __init annotation will be
  19 * redundant, and will result in section names like .init.init.text, and our
  20 * linker script does not expect that.
  21 */
  22#undef __init
  23
  24/*
  25 * Allow the platform to override the allocation granularity: this allows
  26 * systems that have the capability to run with a larger page size to deal
  27 * with the allocations for initrd and fdt more efficiently.
  28 */
  29#ifndef EFI_ALLOC_ALIGN
  30#define EFI_ALLOC_ALIGN		EFI_PAGE_SIZE
  31#endif
  32
  33#ifndef EFI_ALLOC_LIMIT
  34#define EFI_ALLOC_LIMIT		ULONG_MAX
  35#endif
  36
  37struct edid_info;
  38struct screen_info;
  39
  40extern bool efi_no5lvl;
  41extern bool efi_nochunk;
  42extern bool efi_nokaslr;
  43extern int efi_loglevel;
  44extern int efi_mem_encrypt;
  45extern bool efi_novamap;
  46extern const efi_system_table_t *efi_system_table;
  47
  48typedef union efi_dxe_services_table efi_dxe_services_table_t;
  49extern const efi_dxe_services_table_t *efi_dxe_table;
  50
  51efi_status_t __efiapi efi_pe_entry(efi_handle_t handle,
  52				   efi_system_table_t *sys_table_arg);
  53
  54#ifndef ARCH_HAS_EFISTUB_WRAPPERS
  55
  56#define efi_is_native()			(true)
  57#define efi_table_attr(inst, attr)	(inst)->attr
  58#define efi_fn_call(inst, func, ...)	(inst)->func(__VA_ARGS__)
  59
  60#endif
  61
  62#define efi_call_proto(inst, func, ...) ({			\
  63	__typeof__(inst) __inst = (inst);			\
  64	efi_fn_call(__inst, func, __inst, ##__VA_ARGS__);	\
  65})
  66#define efi_bs_call(func, ...) \
  67	efi_fn_call(efi_table_attr(efi_system_table, boottime), func, ##__VA_ARGS__)
  68#define efi_rt_call(func, ...) \
  69	efi_fn_call(efi_table_attr(efi_system_table, runtime), func, ##__VA_ARGS__)
  70#define efi_dxe_call(func, ...) \
  71	efi_fn_call(efi_dxe_table, func, ##__VA_ARGS__)
  72
  73#define efi_info(fmt, ...) \
  74	efi_printk(KERN_INFO fmt, ##__VA_ARGS__)
  75#define efi_warn(fmt, ...) \
  76	efi_printk(KERN_WARNING "WARNING: " fmt, ##__VA_ARGS__)
  77#define efi_err(fmt, ...) \
  78	efi_printk(KERN_ERR "ERROR: " fmt, ##__VA_ARGS__)
  79#define efi_debug(fmt, ...) \
  80	efi_printk(KERN_DEBUG "DEBUG: " fmt, ##__VA_ARGS__)
  81
  82#define efi_printk_once(fmt, ...) 		\
  83({						\
  84	static bool __print_once;		\
  85	bool __ret_print_once = !__print_once;	\
  86						\
  87	if (!__print_once) {			\
  88		__print_once = true;		\
  89		efi_printk(fmt, ##__VA_ARGS__);	\
  90	}					\
  91	__ret_print_once;			\
  92})
  93
  94#define efi_info_once(fmt, ...) \
  95	efi_printk_once(KERN_INFO fmt, ##__VA_ARGS__)
  96#define efi_warn_once(fmt, ...) \
  97	efi_printk_once(KERN_WARNING "WARNING: " fmt, ##__VA_ARGS__)
  98#define efi_err_once(fmt, ...) \
  99	efi_printk_once(KERN_ERR "ERROR: " fmt, ##__VA_ARGS__)
 100#define efi_debug_once(fmt, ...) \
 101	efi_printk_once(KERN_DEBUG "DEBUG: " fmt, ##__VA_ARGS__)
 102
 103/* Helper macros for the usual case of using simple C variables: */
 104#ifndef fdt_setprop_inplace_var
 105#define fdt_setprop_inplace_var(fdt, node_offset, name, var) \
 106	fdt_setprop_inplace((fdt), (node_offset), (name), &(var), sizeof(var))
 107#endif
 108
 109#ifndef fdt_setprop_var
 110#define fdt_setprop_var(fdt, node_offset, name, var) \
 111	fdt_setprop((fdt), (node_offset), (name), &(var), sizeof(var))
 112#endif
 113
 114#define get_efi_var(name, vendor, ...)				\
 115	efi_rt_call(get_variable, (efi_char16_t *)(name),	\
 116		    (efi_guid_t *)(vendor), __VA_ARGS__)
 117
 118#define set_efi_var(name, vendor, ...)				\
 119	efi_rt_call(set_variable, (efi_char16_t *)(name),	\
 120		    (efi_guid_t *)(vendor), __VA_ARGS__)
 121
 122#define efi_get_handle_at(array, idx)					\
 123	(efi_is_native() ? (array)[idx] 				\
 124		: (efi_handle_t)(unsigned long)((u32 *)(array))[idx])
 125
 126#define efi_get_handle_num(size)					\
 127	((size) / (efi_is_native() ? sizeof(efi_handle_t) : sizeof(u32)))
 128
 129#define for_each_efi_handle(handle, array, num)				\
 130	for (int __i = 0; __i < (num) &&				\
 131		((handle = efi_get_handle_at((array), __i)) || true);	\
 132	     __i++)
 133
 134static inline
 135void efi_set_u64_split(u64 data, u32 *lo, u32 *hi)
 136{
 137	*lo = lower_32_bits(data);
 138	*hi = upper_32_bits(data);
 139}
 140
 141/*
 142 * Allocation types for calls to boottime->allocate_pages.
 143 */
 144#define EFI_ALLOCATE_ANY_PAGES		0
 145#define EFI_ALLOCATE_MAX_ADDRESS	1
 146#define EFI_ALLOCATE_ADDRESS		2
 147#define EFI_MAX_ALLOCATE_TYPE		3
 148
 149/*
 150 * The type of search to perform when calling boottime->locate_handle
 151 */
 152#define EFI_LOCATE_ALL_HANDLES			0
 153#define EFI_LOCATE_BY_REGISTER_NOTIFY		1
 154#define EFI_LOCATE_BY_PROTOCOL			2
 155
 156/*
 157 * boottime->stall takes the time period in microseconds
 158 */
 159#define EFI_USEC_PER_SEC		1000000
 160
 161/*
 162 * boottime->set_timer takes the time in 100ns units
 163 */
 164#define EFI_100NSEC_PER_USEC	((u64)10)
 165
 166/*
 167 * An efi_boot_memmap is used by efi_get_memory_map() to return the
 168 * EFI memory map in a dynamically allocated buffer.
 169 *
 170 * The buffer allocated for the EFI memory map includes extra room for
 171 * a minimum of EFI_MMAP_NR_SLACK_SLOTS additional EFI memory descriptors.
 172 * This facilitates the reuse of the EFI memory map buffer when a second
 173 * call to ExitBootServices() is needed because of intervening changes to
 174 * the EFI memory map. Other related structures, e.g. x86 e820ext, need
 175 * to factor in this headroom requirement as well.
 176 */
 177#define EFI_MMAP_NR_SLACK_SLOTS	32
 178
 179typedef struct efi_generic_dev_path efi_device_path_protocol_t;
 180
 181union efi_device_path_to_text_protocol {
 182	struct {
 183		efi_char16_t *(__efiapi *convert_device_node_to_text)(
 184					const efi_device_path_protocol_t *,
 185					bool, bool);
 186		efi_char16_t *(__efiapi *convert_device_path_to_text)(
 187					const efi_device_path_protocol_t *,
 188					bool, bool);
 189	};
 190	struct {
 191		u32 convert_device_node_to_text;
 192		u32 convert_device_path_to_text;
 193	} mixed_mode;
 194};
 195
 196typedef union efi_device_path_to_text_protocol efi_device_path_to_text_protocol_t;
 197
 198union efi_device_path_from_text_protocol {
 199	struct {
 200		efi_device_path_protocol_t *
 201			(__efiapi *convert_text_to_device_node)(const efi_char16_t *);
 202		efi_device_path_protocol_t *
 203			(__efiapi *convert_text_to_device_path)(const efi_char16_t *);
 204	};
 205	struct {
 206		u32 convert_text_to_device_node;
 207		u32 convert_text_to_device_path;
 208	} mixed_mode;
 209};
 210
 211typedef union efi_device_path_from_text_protocol efi_device_path_from_text_protocol_t;
 212
 213typedef void *efi_event_t;
 214/* Note that notifications won't work in mixed mode */
 215typedef void (__efiapi *efi_event_notify_t)(efi_event_t, void *);
 216
 217#define EFI_EVT_TIMER		0x80000000U
 218#define EFI_EVT_RUNTIME		0x40000000U
 219#define EFI_EVT_NOTIFY_WAIT	0x00000100U
 220#define EFI_EVT_NOTIFY_SIGNAL	0x00000200U
 221
 222/**
 223 * efi_set_event_at() - add event to events array
 224 *
 225 * @events:	array of UEFI events
 226 * @ids:	index where to put the event in the array
 227 * @event:	event to add to the aray
 228 *
 229 * boottime->wait_for_event() takes an array of events as input.
 230 * Provide a helper to set it up correctly for mixed mode.
 231 */
 232static inline
 233void efi_set_event_at(efi_event_t *events, size_t idx, efi_event_t event)
 234{
 235	if (efi_is_native())
 236		events[idx] = event;
 237	else
 238		((u32 *)events)[idx] = (u32)(unsigned long)event;
 239}
 240
 241#define EFI_TPL_APPLICATION	4
 242#define EFI_TPL_CALLBACK	8
 243#define EFI_TPL_NOTIFY		16
 244#define EFI_TPL_HIGH_LEVEL	31
 245
 246typedef enum {
 247	EfiTimerCancel,
 248	EfiTimerPeriodic,
 249	EfiTimerRelative
 250} EFI_TIMER_DELAY;
 251
 252/*
 253 * EFI Boot Services table
 254 */
 255union efi_boot_services {
 256	struct {
 257		efi_table_hdr_t hdr;
 258		void *raise_tpl;
 259		void *restore_tpl;
 260		efi_status_t (__efiapi *allocate_pages)(int, int, unsigned long,
 261							efi_physical_addr_t *);
 262		efi_status_t (__efiapi *free_pages)(efi_physical_addr_t,
 263						    unsigned long);
 264		efi_status_t (__efiapi *get_memory_map)(unsigned long *, void *,
 265							unsigned long *,
 266							unsigned long *, u32 *);
 267		efi_status_t (__efiapi *allocate_pool)(int, unsigned long,
 268						       void **);
 269		efi_status_t (__efiapi *free_pool)(void *);
 270		efi_status_t (__efiapi *create_event)(u32, unsigned long,
 271						      efi_event_notify_t, void *,
 272						      efi_event_t *);
 273		efi_status_t (__efiapi *set_timer)(efi_event_t,
 274						  EFI_TIMER_DELAY, u64);
 275		efi_status_t (__efiapi *wait_for_event)(unsigned long,
 276							efi_event_t *,
 277							unsigned long *);
 278		void *signal_event;
 279		efi_status_t (__efiapi *close_event)(efi_event_t);
 280		void *check_event;
 281		void *install_protocol_interface;
 282		void *reinstall_protocol_interface;
 283		void *uninstall_protocol_interface;
 284		efi_status_t (__efiapi *handle_protocol)(efi_handle_t,
 285							 efi_guid_t *, void **);
 286		void *__reserved;
 287		void *register_protocol_notify;
 288		efi_status_t (__efiapi *locate_handle)(int, efi_guid_t *,
 289						       void *, unsigned long *,
 290						       efi_handle_t *);
 291		efi_status_t (__efiapi *locate_device_path)(efi_guid_t *,
 292							    efi_device_path_protocol_t **,
 293							    efi_handle_t *);
 294		efi_status_t (__efiapi *install_configuration_table)(efi_guid_t *,
 295								     void *);
 296		efi_status_t (__efiapi *load_image)(bool, efi_handle_t,
 297						    efi_device_path_protocol_t *,
 298						    void *, unsigned long,
 299						    efi_handle_t *);
 300		efi_status_t (__efiapi *start_image)(efi_handle_t, unsigned long *,
 301						     efi_char16_t **);
 302		efi_status_t __noreturn (__efiapi *exit)(efi_handle_t,
 303							 efi_status_t,
 304							 unsigned long,
 305							 efi_char16_t *);
 306		efi_status_t (__efiapi *unload_image)(efi_handle_t);
 307		efi_status_t (__efiapi *exit_boot_services)(efi_handle_t,
 308							    unsigned long);
 309		void *get_next_monotonic_count;
 310		efi_status_t (__efiapi *stall)(unsigned long);
 311		void *set_watchdog_timer;
 312		void *connect_controller;
 313		efi_status_t (__efiapi *disconnect_controller)(efi_handle_t,
 314							       efi_handle_t,
 315							       efi_handle_t);
 316		void *open_protocol;
 317		void *close_protocol;
 318		void *open_protocol_information;
 319		void *protocols_per_handle;
 320		efi_status_t (__efiapi *locate_handle_buffer)(int, efi_guid_t *,
 321							      void *, unsigned long *,
 322							      efi_handle_t **);
 323		efi_status_t (__efiapi *locate_protocol)(efi_guid_t *, void *,
 324							 void **);
 325		efi_status_t (__efiapi *install_multiple_protocol_interfaces)(efi_handle_t *, ...);
 326		efi_status_t (__efiapi *uninstall_multiple_protocol_interfaces)(efi_handle_t, ...);
 327		void *calculate_crc32;
 328		void (__efiapi *copy_mem)(void *, const void *, unsigned long);
 329		void (__efiapi *set_mem)(void *, unsigned long, unsigned char);
 330		void *create_event_ex;
 331	};
 332	struct {
 333		efi_table_hdr_t hdr;
 334		u32 raise_tpl;
 335		u32 restore_tpl;
 336		u32 allocate_pages;
 337		u32 free_pages;
 338		u32 get_memory_map;
 339		u32 allocate_pool;
 340		u32 free_pool;
 341		u32 create_event;
 342		u32 set_timer;
 343		u32 wait_for_event;
 344		u32 signal_event;
 345		u32 close_event;
 346		u32 check_event;
 347		u32 install_protocol_interface;
 348		u32 reinstall_protocol_interface;
 349		u32 uninstall_protocol_interface;
 350		u32 handle_protocol;
 351		u32 __reserved;
 352		u32 register_protocol_notify;
 353		u32 locate_handle;
 354		u32 locate_device_path;
 355		u32 install_configuration_table;
 356		u32 load_image;
 357		u32 start_image;
 358		u32 exit;
 359		u32 unload_image;
 360		u32 exit_boot_services;
 361		u32 get_next_monotonic_count;
 362		u32 stall;
 363		u32 set_watchdog_timer;
 364		u32 connect_controller;
 365		u32 disconnect_controller;
 366		u32 open_protocol;
 367		u32 close_protocol;
 368		u32 open_protocol_information;
 369		u32 protocols_per_handle;
 370		u32 locate_handle_buffer;
 371		u32 locate_protocol;
 372		u32 install_multiple_protocol_interfaces;
 373		u32 uninstall_multiple_protocol_interfaces;
 374		u32 calculate_crc32;
 375		u32 copy_mem;
 376		u32 set_mem;
 377		u32 create_event_ex;
 378	} mixed_mode;
 379};
 380
 381typedef enum {
 382	EfiGcdMemoryTypeNonExistent,
 383	EfiGcdMemoryTypeReserved,
 384	EfiGcdMemoryTypeSystemMemory,
 385	EfiGcdMemoryTypeMemoryMappedIo,
 386	EfiGcdMemoryTypePersistent,
 387	EfiGcdMemoryTypeMoreReliable,
 388	EfiGcdMemoryTypeMaximum
 389} efi_gcd_memory_type_t;
 390
 391typedef struct {
 392	efi_physical_addr_t base_address;
 393	u64 length;
 394	u64 capabilities;
 395	u64 attributes;
 396	efi_gcd_memory_type_t gcd_memory_type;
 397	void *image_handle;
 398	void *device_handle;
 399} efi_gcd_memory_space_desc_t;
 400
 401/*
 402 * EFI DXE Services table
 403 */
 404union efi_dxe_services_table {
 405	struct {
 406		efi_table_hdr_t hdr;
 407		void *add_memory_space;
 408		void *allocate_memory_space;
 409		void *free_memory_space;
 410		void *remove_memory_space;
 411		efi_status_t (__efiapi *get_memory_space_descriptor)(efi_physical_addr_t,
 412								     efi_gcd_memory_space_desc_t *);
 413		efi_status_t (__efiapi *set_memory_space_attributes)(efi_physical_addr_t,
 414								     u64, u64);
 415		void *get_memory_space_map;
 416		void *add_io_space;
 417		void *allocate_io_space;
 418		void *free_io_space;
 419		void *remove_io_space;
 420		void *get_io_space_descriptor;
 421		void *get_io_space_map;
 422		void *dispatch;
 423		void *schedule;
 424		void *trust;
 425		void *process_firmware_volume;
 426		void *set_memory_space_capabilities;
 427	};
 428	struct {
 429		efi_table_hdr_t hdr;
 430		u32 add_memory_space;
 431		u32 allocate_memory_space;
 432		u32 free_memory_space;
 433		u32 remove_memory_space;
 434		u32 get_memory_space_descriptor;
 435		u32 set_memory_space_attributes;
 436		u32 get_memory_space_map;
 437		u32 add_io_space;
 438		u32 allocate_io_space;
 439		u32 free_io_space;
 440		u32 remove_io_space;
 441		u32 get_io_space_descriptor;
 442		u32 get_io_space_map;
 443		u32 dispatch;
 444		u32 schedule;
 445		u32 trust;
 446		u32 process_firmware_volume;
 447		u32 set_memory_space_capabilities;
 448	} mixed_mode;
 449};
 450
 451typedef union efi_memory_attribute_protocol efi_memory_attribute_protocol_t;
 452
 453union efi_memory_attribute_protocol {
 454	struct {
 455		efi_status_t (__efiapi *get_memory_attributes)(
 456			efi_memory_attribute_protocol_t *, efi_physical_addr_t, u64, u64 *);
 457
 458		efi_status_t (__efiapi *set_memory_attributes)(
 459			efi_memory_attribute_protocol_t *, efi_physical_addr_t, u64, u64);
 460
 461		efi_status_t (__efiapi *clear_memory_attributes)(
 462			efi_memory_attribute_protocol_t *, efi_physical_addr_t, u64, u64);
 463	};
 464	struct {
 465		u32 get_memory_attributes;
 466		u32 set_memory_attributes;
 467		u32 clear_memory_attributes;
 468	} mixed_mode;
 469};
 470
 471typedef union efi_uga_draw_protocol efi_uga_draw_protocol_t;
 472
 473union efi_uga_draw_protocol {
 474	struct {
 475		efi_status_t (__efiapi *get_mode)(efi_uga_draw_protocol_t *,
 476						  u32*, u32*, u32*, u32*);
 477		void *set_mode;
 478		void *blt;
 479	};
 480	struct {
 481		u32 get_mode;
 482		u32 set_mode;
 483		u32 blt;
 484	} mixed_mode;
 485};
 486
 487typedef struct {
 488	u16 scan_code;
 489	efi_char16_t unicode_char;
 490} efi_input_key_t;
 491
 492union efi_simple_text_input_protocol {
 493	struct {
 494		void *reset;
 495		efi_status_t (__efiapi *read_keystroke)(efi_simple_text_input_protocol_t *,
 496							efi_input_key_t *);
 497		efi_event_t wait_for_key;
 498	};
 499	struct {
 500		u32 reset;
 501		u32 read_keystroke;
 502		u32 wait_for_key;
 503	} mixed_mode;
 504};
 505
 506efi_status_t efi_wait_for_key(unsigned long usec, efi_input_key_t *key);
 507
 508union efi_simple_text_output_protocol {
 509	struct {
 510		void *reset;
 511		efi_status_t (__efiapi *output_string)(efi_simple_text_output_protocol_t *,
 512						       efi_char16_t *);
 513		void *test_string;
 514	};
 515	struct {
 516		u32 reset;
 517		u32 output_string;
 518		u32 test_string;
 519	} mixed_mode;
 520};
 521
 522#define PIXEL_RGB_RESERVED_8BIT_PER_COLOR		0
 523#define PIXEL_BGR_RESERVED_8BIT_PER_COLOR		1
 524#define PIXEL_BIT_MASK					2
 525#define PIXEL_BLT_ONLY					3
 526#define PIXEL_FORMAT_MAX				4
 527
 528typedef struct {
 529	u32 red_mask;
 530	u32 green_mask;
 531	u32 blue_mask;
 532	u32 reserved_mask;
 533} efi_pixel_bitmask_t;
 534
 535typedef struct {
 536	u32 version;
 537	u32 horizontal_resolution;
 538	u32 vertical_resolution;
 539	int pixel_format;
 540	efi_pixel_bitmask_t pixel_information;
 541	u32 pixels_per_scan_line;
 542} efi_graphics_output_mode_info_t;
 543
 544typedef union efi_graphics_output_protocol_mode efi_graphics_output_protocol_mode_t;
 545
 546union efi_graphics_output_protocol_mode {
 547	struct {
 548		u32 max_mode;
 549		u32 mode;
 550		efi_graphics_output_mode_info_t *info;
 551		unsigned long size_of_info;
 552		efi_physical_addr_t frame_buffer_base;
 553		unsigned long frame_buffer_size;
 554	};
 555	struct {
 556		u32 max_mode;
 557		u32 mode;
 558		u32 info;
 559		u32 size_of_info;
 560		u64 frame_buffer_base;
 561		u32 frame_buffer_size;
 562	} mixed_mode;
 563};
 564
 565typedef union efi_graphics_output_protocol efi_graphics_output_protocol_t;
 566
 567union efi_graphics_output_protocol {
 568	struct {
 569		efi_status_t (__efiapi *query_mode)(efi_graphics_output_protocol_t *,
 570						    u32, unsigned long *,
 571						    efi_graphics_output_mode_info_t **);
 572		efi_status_t (__efiapi *set_mode)  (efi_graphics_output_protocol_t *, u32);
 573		void *blt;
 574		efi_graphics_output_protocol_mode_t *mode;
 575	};
 576	struct {
 577		u32 query_mode;
 578		u32 set_mode;
 579		u32 blt;
 580		u32 mode;
 581	} mixed_mode;
 582};
 583
 584typedef union efi_edid_discovered_protocol efi_edid_discovered_protocol_t;
 585
 586union efi_edid_discovered_protocol {
 587	struct {
 588		u32 size_of_edid;
 589		u8 *edid;
 590	};
 591	struct {
 592		u32 size_of_edid;
 593		u32 edid;
 594	} mixed_mode;
 595};
 596
 597typedef union efi_edid_active_protocol efi_edid_active_protocol_t;
 598
 599union efi_edid_active_protocol {
 600	struct {
 601		u32 size_of_edid;
 602		u8 *edid;
 603	};
 604	struct {
 605		u32 size_of_edid;
 606		u32 edid;
 607	} mixed_mode;
 608};
 609
 610typedef union {
 611	struct {
 612		u32			revision;
 613		efi_handle_t		parent_handle;
 614		efi_system_table_t	*system_table;
 615		efi_handle_t		device_handle;
 616		void			*file_path;
 617		void			*reserved;
 618		u32			load_options_size;
 619		void			*load_options;
 620		void			*image_base;
 621		__aligned_u64		image_size;
 622		unsigned int		image_code_type;
 623		unsigned int		image_data_type;
 624		efi_status_t		(__efiapi *unload)(efi_handle_t image_handle);
 625	};
 626	struct {
 627		u32		revision;
 628		u32		parent_handle;
 629		u32		system_table;
 630		u32		device_handle;
 631		u32		file_path;
 632		u32		reserved;
 633		u32		load_options_size;
 634		u32		load_options;
 635		u32		image_base;
 636		__aligned_u64	image_size;
 637		u32		image_code_type;
 638		u32		image_data_type;
 639		u32		unload;
 640	} mixed_mode;
 641} efi_loaded_image_t;
 642
 643typedef struct {
 644	u64			size;
 645	u64			file_size;
 646	u64			phys_size;
 647	efi_time_t		create_time;
 648	efi_time_t		last_access_time;
 649	efi_time_t		modification_time;
 650	__aligned_u64		attribute;
 651	efi_char16_t		filename[];
 652} efi_file_info_t;
 653
 654typedef union efi_file_protocol efi_file_protocol_t;
 655
 656union efi_file_protocol {
 657	struct {
 658		u64		revision;
 659		efi_status_t	(__efiapi *open)	(efi_file_protocol_t *,
 660							 efi_file_protocol_t **,
 661							 efi_char16_t *, u64,
 662							 u64);
 663		efi_status_t	(__efiapi *close)	(efi_file_protocol_t *);
 664		efi_status_t	(__efiapi *delete)	(efi_file_protocol_t *);
 665		efi_status_t	(__efiapi *read)	(efi_file_protocol_t *,
 666							 unsigned long *,
 667							 void *);
 668		efi_status_t	(__efiapi *write)	(efi_file_protocol_t *,
 669							 unsigned long, void *);
 670		efi_status_t	(__efiapi *get_position)(efi_file_protocol_t *,
 671							 u64 *);
 672		efi_status_t	(__efiapi *set_position)(efi_file_protocol_t *,
 673							 u64);
 674		efi_status_t	(__efiapi *get_info)	(efi_file_protocol_t *,
 675							 efi_guid_t *,
 676							 unsigned long *,
 677							 void *);
 678		efi_status_t	(__efiapi *set_info)	(efi_file_protocol_t *,
 679							 efi_guid_t *,
 680							 unsigned long,
 681							 void *);
 682		efi_status_t	(__efiapi *flush)	(efi_file_protocol_t *);
 683	};
 684	struct {
 685		u64 revision;
 686		u32 open;
 687		u32 close;
 688		u32 delete;
 689		u32 read;
 690		u32 write;
 691		u32 get_position;
 692		u32 set_position;
 693		u32 get_info;
 694		u32 set_info;
 695		u32 flush;
 696	} mixed_mode;
 697};
 698
 699typedef union efi_simple_file_system_protocol efi_simple_file_system_protocol_t;
 700
 701union efi_simple_file_system_protocol {
 702	struct {
 703		u64		revision;
 704		efi_status_t	(__efiapi *open_volume)(efi_simple_file_system_protocol_t *,
 705							efi_file_protocol_t **);
 706	};
 707	struct {
 708		u64 revision;
 709		u32 open_volume;
 710	} mixed_mode;
 711};
 712
 713#define EFI_FILE_MODE_READ	0x0000000000000001
 714#define EFI_FILE_MODE_WRITE	0x0000000000000002
 715#define EFI_FILE_MODE_CREATE	0x8000000000000000
 716
 717typedef enum {
 718	EfiPciIoWidthUint8,
 719	EfiPciIoWidthUint16,
 720	EfiPciIoWidthUint32,
 721	EfiPciIoWidthUint64,
 722	EfiPciIoWidthFifoUint8,
 723	EfiPciIoWidthFifoUint16,
 724	EfiPciIoWidthFifoUint32,
 725	EfiPciIoWidthFifoUint64,
 726	EfiPciIoWidthFillUint8,
 727	EfiPciIoWidthFillUint16,
 728	EfiPciIoWidthFillUint32,
 729	EfiPciIoWidthFillUint64,
 730	EfiPciIoWidthMaximum
 731} EFI_PCI_IO_PROTOCOL_WIDTH;
 732
 733typedef enum {
 734	EfiPciIoAttributeOperationGet,
 735	EfiPciIoAttributeOperationSet,
 736	EfiPciIoAttributeOperationEnable,
 737	EfiPciIoAttributeOperationDisable,
 738	EfiPciIoAttributeOperationSupported,
 739    EfiPciIoAttributeOperationMaximum
 740} EFI_PCI_IO_PROTOCOL_ATTRIBUTE_OPERATION;
 741
 742typedef struct {
 743	u32 read;
 744	u32 write;
 745} efi_pci_io_protocol_access_32_t;
 746
 747typedef union efi_pci_io_protocol efi_pci_io_protocol_t;
 748
 749typedef
 750efi_status_t (__efiapi *efi_pci_io_protocol_cfg_t)(efi_pci_io_protocol_t *,
 751						   EFI_PCI_IO_PROTOCOL_WIDTH,
 752						   u32 offset,
 753						   unsigned long count,
 754						   void *buffer);
 755
 756typedef struct {
 757	void *read;
 758	void *write;
 759} efi_pci_io_protocol_access_t;
 760
 761typedef struct {
 762	efi_pci_io_protocol_cfg_t read;
 763	efi_pci_io_protocol_cfg_t write;
 764} efi_pci_io_protocol_config_access_t;
 765
 766union efi_pci_io_protocol {
 767	struct {
 768		void *poll_mem;
 769		void *poll_io;
 770		efi_pci_io_protocol_access_t mem;
 771		efi_pci_io_protocol_access_t io;
 772		efi_pci_io_protocol_config_access_t pci;
 773		void *copy_mem;
 774		void *map;
 775		void *unmap;
 776		void *allocate_buffer;
 777		void *free_buffer;
 778		void *flush;
 779		efi_status_t (__efiapi *get_location)(efi_pci_io_protocol_t *,
 780						      unsigned long *segment_nr,
 781						      unsigned long *bus_nr,
 782						      unsigned long *device_nr,
 783						      unsigned long *func_nr);
 784		void *attributes;
 785		void *get_bar_attributes;
 786		void *set_bar_attributes;
 787		uint64_t romsize;
 788		void *romimage;
 789	};
 790	struct {
 791		u32 poll_mem;
 792		u32 poll_io;
 793		efi_pci_io_protocol_access_32_t mem;
 794		efi_pci_io_protocol_access_32_t io;
 795		efi_pci_io_protocol_access_32_t pci;
 796		u32 copy_mem;
 797		u32 map;
 798		u32 unmap;
 799		u32 allocate_buffer;
 800		u32 free_buffer;
 801		u32 flush;
 802		u32 get_location;
 803		u32 attributes;
 804		u32 get_bar_attributes;
 805		u32 set_bar_attributes;
 806		u64 romsize;
 807		u32 romimage;
 808	} mixed_mode;
 809};
 810
 811#define EFI_PCI_IO_ATTRIBUTE_ISA_MOTHERBOARD_IO 0x0001
 812#define EFI_PCI_IO_ATTRIBUTE_ISA_IO 0x0002
 813#define EFI_PCI_IO_ATTRIBUTE_VGA_PALETTE_IO 0x0004
 814#define EFI_PCI_IO_ATTRIBUTE_VGA_MEMORY 0x0008
 815#define EFI_PCI_IO_ATTRIBUTE_VGA_IO 0x0010
 816#define EFI_PCI_IO_ATTRIBUTE_IDE_PRIMARY_IO 0x0020
 817#define EFI_PCI_IO_ATTRIBUTE_IDE_SECONDARY_IO 0x0040
 818#define EFI_PCI_IO_ATTRIBUTE_MEMORY_WRITE_COMBINE 0x0080
 819#define EFI_PCI_IO_ATTRIBUTE_IO 0x0100
 820#define EFI_PCI_IO_ATTRIBUTE_MEMORY 0x0200
 821#define EFI_PCI_IO_ATTRIBUTE_BUS_MASTER 0x0400
 822#define EFI_PCI_IO_ATTRIBUTE_MEMORY_CACHED 0x0800
 823#define EFI_PCI_IO_ATTRIBUTE_MEMORY_DISABLE 0x1000
 824#define EFI_PCI_IO_ATTRIBUTE_EMBEDDED_DEVICE 0x2000
 825#define EFI_PCI_IO_ATTRIBUTE_EMBEDDED_ROM 0x4000
 826#define EFI_PCI_IO_ATTRIBUTE_DUAL_ADDRESS_CYCLE 0x8000
 827#define EFI_PCI_IO_ATTRIBUTE_ISA_IO_16 0x10000
 828#define EFI_PCI_IO_ATTRIBUTE_VGA_PALETTE_IO_16 0x20000
 829#define EFI_PCI_IO_ATTRIBUTE_VGA_IO_16 0x40000
 830
 831struct efi_dev_path;
 832
 833typedef union apple_properties_protocol apple_properties_protocol_t;
 834
 835union apple_properties_protocol {
 836	struct {
 837		unsigned long version;
 838		efi_status_t (__efiapi *get)(apple_properties_protocol_t *,
 839					     struct efi_dev_path *,
 840					     efi_char16_t *, void *, u32 *);
 841		efi_status_t (__efiapi *set)(apple_properties_protocol_t *,
 842					     struct efi_dev_path *,
 843					     efi_char16_t *, void *, u32);
 844		efi_status_t (__efiapi *del)(apple_properties_protocol_t *,
 845					     struct efi_dev_path *,
 846					     efi_char16_t *);
 847		efi_status_t (__efiapi *get_all)(apple_properties_protocol_t *,
 848						 void *buffer, u32 *);
 849	};
 850	struct {
 851		u32 version;
 852		u32 get;
 853		u32 set;
 854		u32 del;
 855		u32 get_all;
 856	} mixed_mode;
 857};
 858
 859typedef u32 efi_tcg2_event_log_format;
 860
 861#define INITRD_EVENT_TAG_ID 0x8F3B22ECU
 862#define LOAD_OPTIONS_EVENT_TAG_ID 0x8F3B22EDU
 863#define EV_EVENT_TAG 0x00000006U
 864#define EFI_TCG2_EVENT_HEADER_VERSION	0x1
 865
 866struct efi_tcg2_event {
 867	u32		event_size;
 868	struct {
 869		u32	header_size;
 870		u16	header_version;
 871		u32	pcr_index;
 872		u32	event_type;
 873	} __packed event_header;
 874	/* u8[] event follows here */
 875} __packed;
 876
 877/* from TCG PC Client Platform Firmware Profile Specification */
 878typedef struct tdTCG_PCClientTaggedEvent {
 879	u32	tagged_event_id;
 880	u32	tagged_event_data_size;
 881	u8	tagged_event_data[];
 882} TCG_PCClientTaggedEvent;
 883
 884typedef struct efi_tcg2_event efi_tcg2_event_t;
 885typedef union efi_tcg2_protocol efi_tcg2_protocol_t;
 886
 887union efi_tcg2_protocol {
 888	struct {
 889		void *get_capability;
 890		efi_status_t (__efiapi *get_event_log)(efi_tcg2_protocol_t *,
 891						       efi_tcg2_event_log_format,
 892						       efi_physical_addr_t *,
 893						       efi_physical_addr_t *,
 894						       efi_bool_t *);
 895		efi_status_t (__efiapi *hash_log_extend_event)(efi_tcg2_protocol_t *,
 896							       u64,
 897							       efi_physical_addr_t,
 898							       u64,
 899							       const efi_tcg2_event_t *);
 900		void *submit_command;
 901		void *get_active_pcr_banks;
 902		void *set_active_pcr_banks;
 903		void *get_result_of_set_active_pcr_banks;
 904	};
 905	struct {
 906		u32 get_capability;
 907		u32 get_event_log;
 908		u32 hash_log_extend_event;
 909		u32 submit_command;
 910		u32 get_active_pcr_banks;
 911		u32 set_active_pcr_banks;
 912		u32 get_result_of_set_active_pcr_banks;
 913	} mixed_mode;
 914};
 915
 916typedef struct {
 917	u8 major;
 918	u8 minor;
 919} efi_cc_version_t;
 920
 921typedef struct {
 922	u8 type;
 923	u8 sub_type;
 924} efi_cc_type_t;
 925
 926/* EFI CC type/subtype defines */
 927#define EFI_CC_TYPE_NONE		0
 928#define EFI_CC_TYPE_AMD_SEV		1
 929#define EFI_CC_TYPE_INTEL_TDX		2
 930
 931typedef u32 efi_cc_mr_index_t;
 932
 933struct efi_cc_event {
 934	u32 event_size;
 935	struct {
 936		u32 header_size;
 937		u16 header_version;
 938		u32 mr_index;
 939		u32 event_type;
 940	} __packed event_header;
 941	/* u8[] event follows here */
 942} __packed;
 943
 944typedef struct efi_cc_event efi_cc_event_t;
 945
 946typedef u32 efi_cc_event_log_bitmap_t;
 947typedef u32 efi_cc_event_log_format_t;
 948typedef u32 efi_cc_event_algorithm_bitmap_t;
 949
 950typedef struct {
 951	u8				size;
 952	efi_cc_version_t		structure_version;
 953	efi_cc_version_t		protocol_version;
 954	efi_cc_event_algorithm_bitmap_t	hash_algorithm_bitmap;
 955	efi_cc_event_log_bitmap_t	supported_event_logs;
 956	efi_cc_type_t			cc_type;
 957} efi_cc_boot_service_cap_t;
 958
 959#define EFI_CC_EVENT_HEADER_VERSION	1
 960
 961#define EFI_CC_BOOT_HASH_ALG_SHA384	0x00000004
 962
 963#define EFI_CC_EVENT_LOG_FORMAT_TCG_2	0x00000002
 964
 965typedef union efi_cc_protocol efi_cc_protocol_t;
 966
 967union efi_cc_protocol {
 968	struct {
 969		efi_status_t
 970		(__efiapi *get_capability)(efi_cc_protocol_t *,
 971					   efi_cc_boot_service_cap_t *);
 972
 973		efi_status_t
 974		(__efiapi *get_event_log)(efi_cc_protocol_t *,
 975					  efi_cc_event_log_format_t,
 976					  efi_physical_addr_t *,
 977					  efi_physical_addr_t *,
 978					  efi_bool_t *);
 979
 980		efi_status_t
 981		(__efiapi *hash_log_extend_event)(efi_cc_protocol_t *, u64,
 982						  efi_physical_addr_t, u64,
 983						  const efi_cc_event_t *);
 984
 985		efi_status_t
 986		(__efiapi *map_pcr_to_mr_index)(efi_cc_protocol_t *, u32,
 987						efi_cc_mr_index_t *);
 988	};
 989	struct {
 990		u32 get_capability;
 991		u32 get_event_log;
 992		u32 hash_log_extend_event;
 993		u32 map_pcr_to_mr_index;
 994	} mixed_mode;
 995};
 996
 997struct riscv_efi_boot_protocol {
 998	u64 revision;
 999
1000	efi_status_t (__efiapi *get_boot_hartid)(struct riscv_efi_boot_protocol *,
1001						 unsigned long *boot_hartid);
1002};
1003
1004typedef union efi_load_file_protocol efi_load_file_protocol_t;
1005typedef union efi_load_file_protocol efi_load_file2_protocol_t;
1006
1007union efi_load_file_protocol {
1008	struct {
1009		efi_status_t (__efiapi *load_file)(efi_load_file_protocol_t *,
1010						   efi_device_path_protocol_t *,
1011						   bool, unsigned long *, void *);
1012	};
1013	struct {
1014		u32 load_file;
1015	} mixed_mode;
1016};
1017
1018typedef struct {
1019	u32 attributes;
1020	u16 file_path_list_length;
1021	u8 variable_data[];
1022	// efi_char16_t description[];
1023	// efi_device_path_protocol_t file_path_list[];
1024	// u8 optional_data[];
1025} __packed efi_load_option_t;
1026
1027#define EFI_LOAD_OPTION_ACTIVE		0x0001U
1028#define EFI_LOAD_OPTION_FORCE_RECONNECT	0x0002U
1029#define EFI_LOAD_OPTION_HIDDEN		0x0008U
1030#define EFI_LOAD_OPTION_CATEGORY	0x1f00U
1031#define   EFI_LOAD_OPTION_CATEGORY_BOOT	0x0000U
1032#define   EFI_LOAD_OPTION_CATEGORY_APP	0x0100U
1033
1034#define EFI_LOAD_OPTION_BOOT_MASK \
1035	(EFI_LOAD_OPTION_ACTIVE|EFI_LOAD_OPTION_HIDDEN|EFI_LOAD_OPTION_CATEGORY)
1036#define EFI_LOAD_OPTION_MASK (EFI_LOAD_OPTION_FORCE_RECONNECT|EFI_LOAD_OPTION_BOOT_MASK)
1037
1038typedef struct {
1039	u32 attributes;
1040	u16 file_path_list_length;
1041	const efi_char16_t *description;
1042	const efi_device_path_protocol_t *file_path_list;
1043	u32 optional_data_size;
1044	const void *optional_data;
1045} efi_load_option_unpacked_t;
1046
1047void efi_pci_disable_bridge_busmaster(void);
1048
1049typedef efi_status_t (*efi_exit_boot_map_processing)(
1050	struct efi_boot_memmap *map,
1051	void *priv);
1052
1053efi_status_t efi_exit_boot_services(void *handle, void *priv,
1054				    efi_exit_boot_map_processing priv_func);
1055
1056efi_status_t efi_boot_kernel(void *handle, efi_loaded_image_t *image,
1057			     unsigned long kernel_addr, char *cmdline_ptr);
1058
1059void *get_fdt(unsigned long *fdt_size);
1060
1061efi_status_t efi_alloc_virtmap(efi_memory_desc_t **virtmap,
1062			       unsigned long *desc_size, u32 *desc_ver);
1063void efi_get_virtmap(efi_memory_desc_t *memory_map, unsigned long map_size,
1064		     unsigned long desc_size, efi_memory_desc_t *runtime_map,
1065		     int *count);
1066
1067efi_status_t efi_get_random_bytes(unsigned long size, u8 *out);
1068
1069efi_status_t efi_random_alloc(unsigned long size, unsigned long align,
1070			      unsigned long *addr, unsigned long random_seed,
1071			      int memory_type, unsigned long alloc_min,
1072			      unsigned long alloc_max);
1073
1074efi_status_t efi_random_get_seed(void);
1075
1076efi_status_t check_platform_features(void);
1077
1078void *get_efi_config_table(efi_guid_t guid);
1079
1080/* NOTE: These functions do not print a trailing newline after the string */
1081void efi_char16_puts(efi_char16_t *);
1082void efi_puts(const char *str);
1083
1084__printf(1, 2) int efi_printk(char const *fmt, ...);
1085
1086void efi_free(unsigned long size, unsigned long addr);
1087DEFINE_FREE(efi_pool, void *, if (_T) efi_bs_call(free_pool, _T));
1088
1089void efi_apply_loadoptions_quirk(const void **load_options, u32 *load_options_size);
1090
1091char *efi_convert_cmdline(efi_loaded_image_t *image);
1092
1093efi_status_t efi_get_memory_map(struct efi_boot_memmap **map,
1094				bool install_cfg_tbl);
1095
1096efi_status_t efi_allocate_pages(unsigned long size, unsigned long *addr,
1097				unsigned long max);
1098
1099efi_status_t efi_allocate_pages_aligned(unsigned long size, unsigned long *addr,
1100					unsigned long max, unsigned long align,
1101					int memory_type);
1102
1103efi_status_t efi_low_alloc_above(unsigned long size, unsigned long align,
1104				 unsigned long *addr, unsigned long min);
1105
1106efi_status_t efi_relocate_kernel(unsigned long *image_addr,
1107				 unsigned long image_size,
1108				 unsigned long alloc_size,
1109				 unsigned long preferred_addr,
1110				 unsigned long alignment,
1111				 unsigned long min_addr);
1112
1113efi_status_t efi_parse_options(char const *cmdline);
1114
1115void efi_parse_option_graphics(char *option);
1116
1117efi_status_t efi_setup_graphics(struct screen_info *si, struct edid_info *edid);
1118
1119efi_status_t handle_cmdline_files(efi_loaded_image_t *image,
1120				  const efi_char16_t *optstr,
1121				  int optstr_size,
1122				  unsigned long soft_limit,
1123				  unsigned long hard_limit,
1124				  unsigned long *load_addr,
1125				  unsigned long *load_size);
1126
1127
1128static inline efi_status_t efi_load_dtb(efi_loaded_image_t *image,
1129					unsigned long *load_addr,
1130					unsigned long *load_size)
1131{
1132	return handle_cmdline_files(image, L"dtb=", sizeof(L"dtb=") - 2,
1133				    ULONG_MAX, ULONG_MAX, load_addr, load_size);
1134}
1135
1136efi_status_t efi_load_initrd(efi_loaded_image_t *image,
1137			     unsigned long soft_limit,
1138			     unsigned long hard_limit,
1139			     const struct linux_efi_initrd **out);
1140/*
1141 * This function handles the architcture specific differences between arm and
1142 * arm64 regarding where the kernel image must be loaded and any memory that
1143 * must be reserved. On failure it is required to free all
1144 * all allocations it has made.
1145 */
1146efi_status_t handle_kernel_image(unsigned long *image_addr,
1147				 unsigned long *image_size,
1148				 unsigned long *reserve_addr,
1149				 unsigned long *reserve_size,
1150				 efi_loaded_image_t *image,
1151				 efi_handle_t image_handle);
1152
1153/* shared entrypoint between the normal stub and the zboot stub */
1154efi_status_t efi_stub_common(efi_handle_t handle,
1155			     efi_loaded_image_t *image,
1156			     unsigned long image_addr,
1157			     char *cmdline_ptr);
1158
1159efi_status_t efi_handle_cmdline(efi_loaded_image_t *image, char **cmdline_ptr);
1160
1161asmlinkage void __noreturn efi_enter_kernel(unsigned long entrypoint,
1162					    unsigned long fdt_addr,
1163					    unsigned long fdt_size);
1164
1165void efi_handle_post_ebs_state(void);
1166
1167enum efi_secureboot_mode efi_get_secureboot(void);
1168
1169#ifdef CONFIG_RESET_ATTACK_MITIGATION
1170void efi_enable_reset_attack_mitigation(void);
1171#else
1172static inline void
1173efi_enable_reset_attack_mitigation(void) { }
1174#endif
1175
1176void efi_retrieve_eventlog(void);
1177
1178struct screen_info *alloc_screen_info(void);
1179struct screen_info *__alloc_screen_info(void);
1180void free_screen_info(struct screen_info *si);
1181
1182void efi_cache_sync_image(unsigned long image_base,
1183			  unsigned long alloc_size);
1184
1185struct efi_smbios_record {
1186	u8	type;
1187	u8	length;
1188	u16	handle;
1189};
1190
1191const struct efi_smbios_record *efi_get_smbios_record(u8 type);
1192
1193struct efi_smbios_type1_record {
1194	struct efi_smbios_record	header;
1195
1196	u8				manufacturer;
1197	u8				product_name;
1198	u8				version;
1199	u8				serial_number;
1200	efi_guid_t			uuid;
1201	u8				wakeup_type;
1202	u8				sku_number;
1203	u8				family;
1204};
1205
1206struct efi_smbios_type4_record {
1207	struct efi_smbios_record	header;
1208
1209	u8				socket;
1210	u8				processor_type;
1211	u8				processor_family;
1212	u8				processor_manufacturer;
1213	u8				processor_id[8];
1214	u8				processor_version;
1215	u8				voltage;
1216	u16				external_clock;
1217	u16				max_speed;
1218	u16				current_speed;
1219	u8				status;
1220	u8				processor_upgrade;
1221	u16				l1_cache_handle;
1222	u16				l2_cache_handle;
1223	u16				l3_cache_handle;
1224	u8				serial_number;
1225	u8				asset_tag;
1226	u8				part_number;
1227	u8				core_count;
1228	u8				enabled_core_count;
1229	u8				thread_count;
1230	u16				processor_characteristics;
1231	u16				processor_family2;
1232	u16				core_count2;
1233	u16				enabled_core_count2;
1234	u16				thread_count2;
1235	u16				thread_enabled;
1236};
1237
1238#define efi_get_smbios_string(__record, __field) ({			\
1239	__typeof__(__record) __rec = __record;				\
1240	__efi_get_smbios_string(&__rec->header, &__rec->__field);	\
1241})
1242
1243const u8 *__efi_get_smbios_string(const struct efi_smbios_record *record,
1244				  const u8 *offset);
1245
1246void efi_remap_image(unsigned long image_base, unsigned alloc_size,
1247		     unsigned long code_size);
1248efi_status_t efi_kaslr_relocate_kernel(unsigned long *image_addr,
1249				       unsigned long *reserve_addr,
1250				       unsigned long *reserve_size,
1251				       unsigned long kernel_size,
1252				       unsigned long kernel_codesize,
1253				       unsigned long kernel_memsize,
1254				       u32 phys_seed);
1255u32 efi_kaslr_get_phys_seed(efi_handle_t image_handle);
1256
1257asmlinkage efi_status_t __efiapi
1258efi_zboot_entry(efi_handle_t handle, efi_system_table_t *systab);
1259
1260efi_status_t allocate_unaccepted_bitmap(__u32 nr_desc,
1261					struct efi_boot_memmap *map);
1262void process_unaccepted_memory(u64 start, u64 end);
1263void accept_memory(phys_addr_t start, unsigned long size);
1264void arch_accept_memory(phys_addr_t start, phys_addr_t end);
1265
1266efi_status_t efi_zboot_decompress_init(unsigned long *alloc_size);
1267efi_status_t efi_zboot_decompress(u8 *out, unsigned long outlen);
1268
1269#endif