Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | #ifndef _LINUX_EFI_H |
| 2 | #define _LINUX_EFI_H |
| 3 | |
| 4 | /* |
| 5 | * Extensible Firmware Interface |
| 6 | * Based on 'Extensible Firmware Interface Specification' version 0.9, April 30, 1999 |
| 7 | * |
| 8 | * Copyright (C) 1999 VA Linux Systems |
| 9 | * Copyright (C) 1999 Walt Drummond <drummond@valinux.com> |
| 10 | * Copyright (C) 1999, 2002-2003 Hewlett-Packard Co. |
| 11 | * David Mosberger-Tang <davidm@hpl.hp.com> |
| 12 | * Stephane Eranian <eranian@hpl.hp.com> |
| 13 | */ |
| 14 | #include <linux/init.h> |
| 15 | #include <linux/string.h> |
| 16 | #include <linux/time.h> |
| 17 | #include <linux/types.h> |
| 18 | #include <linux/proc_fs.h> |
| 19 | #include <linux/rtc.h> |
| 20 | #include <linux/ioport.h> |
Huang, Ying | 4a3575f | 2008-02-25 15:18:37 +0800 | [diff] [blame] | 21 | #include <linux/pfn.h> |
Matthew Garrett | 5ee9c19 | 2011-07-21 16:57:56 -0400 | [diff] [blame] | 22 | #include <linux/pstore.h> |
Matt Fleming | 8562c99c | 2014-06-13 12:22:22 +0100 | [diff] [blame] | 23 | #include <linux/reboot.h> |
Andy Shevchenko | ba7e34b | 2016-05-20 17:01:18 -0700 | [diff] [blame] | 24 | #include <linux/uuid.h> |
Ard Biesheuvel | 2c23b73 | 2016-04-25 21:06:48 +0100 | [diff] [blame] | 25 | #include <linux/screen_info.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 26 | |
| 27 | #include <asm/page.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 28 | |
| 29 | #define EFI_SUCCESS 0 |
| 30 | #define EFI_LOAD_ERROR ( 1 | (1UL << (BITS_PER_LONG-1))) |
| 31 | #define EFI_INVALID_PARAMETER ( 2 | (1UL << (BITS_PER_LONG-1))) |
| 32 | #define EFI_UNSUPPORTED ( 3 | (1UL << (BITS_PER_LONG-1))) |
| 33 | #define EFI_BAD_BUFFER_SIZE ( 4 | (1UL << (BITS_PER_LONG-1))) |
| 34 | #define EFI_BUFFER_TOO_SMALL ( 5 | (1UL << (BITS_PER_LONG-1))) |
Matthew Garrett | 5d9db88 | 2012-10-05 13:54:56 +0800 | [diff] [blame] | 35 | #define EFI_NOT_READY ( 6 | (1UL << (BITS_PER_LONG-1))) |
| 36 | #define EFI_DEVICE_ERROR ( 7 | (1UL << (BITS_PER_LONG-1))) |
| 37 | #define EFI_WRITE_PROTECTED ( 8 | (1UL << (BITS_PER_LONG-1))) |
| 38 | #define EFI_OUT_OF_RESOURCES ( 9 | (1UL << (BITS_PER_LONG-1))) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 39 | #define EFI_NOT_FOUND (14 | (1UL << (BITS_PER_LONG-1))) |
Matthew Garrett | 5d9db88 | 2012-10-05 13:54:56 +0800 | [diff] [blame] | 40 | #define EFI_SECURITY_VIOLATION (26 | (1UL << (BITS_PER_LONG-1))) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 41 | |
| 42 | typedef unsigned long efi_status_t; |
| 43 | typedef u8 efi_bool_t; |
| 44 | typedef u16 efi_char16_t; /* UNICODE character */ |
Roy Franz | ed37ddf | 2013-09-22 15:45:26 -0700 | [diff] [blame] | 45 | typedef u64 efi_physical_addr_t; |
| 46 | typedef void *efi_handle_t; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 47 | |
Andy Shevchenko | ba7e34b | 2016-05-20 17:01:18 -0700 | [diff] [blame] | 48 | typedef uuid_le efi_guid_t; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 49 | |
| 50 | #define EFI_GUID(a,b,c,d0,d1,d2,d3,d4,d5,d6,d7) \ |
Andy Shevchenko | ba7e34b | 2016-05-20 17:01:18 -0700 | [diff] [blame] | 51 | UUID_LE(a, b, c, d0, d1, d2, d3, d4, d5, d6, d7) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 52 | |
| 53 | /* |
| 54 | * Generic EFI table header |
| 55 | */ |
| 56 | typedef struct { |
| 57 | u64 signature; |
| 58 | u32 revision; |
| 59 | u32 headersize; |
| 60 | u32 crc32; |
| 61 | u32 reserved; |
| 62 | } efi_table_hdr_t; |
| 63 | |
| 64 | /* |
| 65 | * Memory map descriptor: |
| 66 | */ |
| 67 | |
| 68 | /* Memory types: */ |
| 69 | #define EFI_RESERVED_TYPE 0 |
| 70 | #define EFI_LOADER_CODE 1 |
| 71 | #define EFI_LOADER_DATA 2 |
| 72 | #define EFI_BOOT_SERVICES_CODE 3 |
| 73 | #define EFI_BOOT_SERVICES_DATA 4 |
| 74 | #define EFI_RUNTIME_SERVICES_CODE 5 |
| 75 | #define EFI_RUNTIME_SERVICES_DATA 6 |
| 76 | #define EFI_CONVENTIONAL_MEMORY 7 |
| 77 | #define EFI_UNUSABLE_MEMORY 8 |
| 78 | #define EFI_ACPI_RECLAIM_MEMORY 9 |
| 79 | #define EFI_ACPI_MEMORY_NVS 10 |
| 80 | #define EFI_MEMORY_MAPPED_IO 11 |
| 81 | #define EFI_MEMORY_MAPPED_IO_PORT_SPACE 12 |
| 82 | #define EFI_PAL_CODE 13 |
Dan Williams | ad5fb87 | 2015-04-03 12:05:28 -0400 | [diff] [blame] | 83 | #define EFI_PERSISTENT_MEMORY 14 |
| 84 | #define EFI_MAX_MEMORY_TYPE 15 |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 85 | |
| 86 | /* Attribute values: */ |
| 87 | #define EFI_MEMORY_UC ((u64)0x0000000000000001ULL) /* uncached */ |
| 88 | #define EFI_MEMORY_WC ((u64)0x0000000000000002ULL) /* write-coalescing */ |
| 89 | #define EFI_MEMORY_WT ((u64)0x0000000000000004ULL) /* write-through */ |
| 90 | #define EFI_MEMORY_WB ((u64)0x0000000000000008ULL) /* write-back */ |
Laszlo Ersek | 9c97e0b | 2014-09-03 13:32:19 +0200 | [diff] [blame] | 91 | #define EFI_MEMORY_UCE ((u64)0x0000000000000010ULL) /* uncached, exported */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 92 | #define EFI_MEMORY_WP ((u64)0x0000000000001000ULL) /* write-protect */ |
| 93 | #define EFI_MEMORY_RP ((u64)0x0000000000002000ULL) /* read-protect */ |
| 94 | #define EFI_MEMORY_XP ((u64)0x0000000000004000ULL) /* execute-protect */ |
Robert Elliott | c016ca0 | 2016-02-01 22:07:06 +0000 | [diff] [blame] | 95 | #define EFI_MEMORY_NV ((u64)0x0000000000008000ULL) /* non-volatile */ |
Tony Luck | b05b9f5 | 2015-06-24 16:58:15 -0700 | [diff] [blame] | 96 | #define EFI_MEMORY_MORE_RELIABLE \ |
| 97 | ((u64)0x0000000000010000ULL) /* higher reliability */ |
Ard Biesheuvel | 87db73ae | 2015-08-07 09:36:54 +0100 | [diff] [blame] | 98 | #define EFI_MEMORY_RO ((u64)0x0000000000020000ULL) /* read-only */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 99 | #define EFI_MEMORY_RUNTIME ((u64)0x8000000000000000ULL) /* range requires runtime mapping */ |
| 100 | #define EFI_MEMORY_DESCRIPTOR_VERSION 1 |
| 101 | |
| 102 | #define EFI_PAGE_SHIFT 12 |
Roy Franz | ed37ddf | 2013-09-22 15:45:26 -0700 | [diff] [blame] | 103 | #define EFI_PAGE_SIZE (1UL << EFI_PAGE_SHIFT) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 104 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 105 | typedef struct { |
| 106 | u32 type; |
| 107 | u32 pad; |
| 108 | u64 phys_addr; |
| 109 | u64 virt_addr; |
| 110 | u64 num_pages; |
| 111 | u64 attribute; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 112 | } efi_memory_desc_t; |
| 113 | |
Matthew Garrett | 3b37023 | 2011-06-06 15:36:25 -0400 | [diff] [blame] | 114 | typedef struct { |
| 115 | efi_guid_t guid; |
| 116 | u32 headersize; |
| 117 | u32 flags; |
| 118 | u32 imagesize; |
| 119 | } efi_capsule_header_t; |
| 120 | |
Matt Fleming | bb05e4b | 2011-11-15 12:57:03 +0000 | [diff] [blame] | 121 | /* |
Matt Fleming | f0133f3 | 2016-04-25 21:06:59 +0100 | [diff] [blame] | 122 | * EFI capsule flags |
| 123 | */ |
| 124 | #define EFI_CAPSULE_PERSIST_ACROSS_RESET 0x00010000 |
| 125 | #define EFI_CAPSULE_POPULATE_SYSTEM_TABLE 0x00020000 |
| 126 | #define EFI_CAPSULE_INITIATE_RESET 0x00040000 |
| 127 | |
| 128 | /* |
Matt Fleming | bb05e4b | 2011-11-15 12:57:03 +0000 | [diff] [blame] | 129 | * Allocation types for calls to boottime->allocate_pages. |
| 130 | */ |
| 131 | #define EFI_ALLOCATE_ANY_PAGES 0 |
| 132 | #define EFI_ALLOCATE_MAX_ADDRESS 1 |
| 133 | #define EFI_ALLOCATE_ADDRESS 2 |
| 134 | #define EFI_MAX_ALLOCATE_TYPE 3 |
| 135 | |
Matthew Wilcox | e088a4a | 2009-05-22 13:49:49 -0700 | [diff] [blame] | 136 | typedef int (*efi_freemem_callback_t) (u64 start, u64 end, void *arg); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 137 | |
| 138 | /* |
| 139 | * Types and defines for Time Services |
| 140 | */ |
| 141 | #define EFI_TIME_ADJUST_DAYLIGHT 0x1 |
| 142 | #define EFI_TIME_IN_DAYLIGHT 0x2 |
| 143 | #define EFI_UNSPECIFIED_TIMEZONE 0x07ff |
| 144 | |
| 145 | typedef struct { |
| 146 | u16 year; |
| 147 | u8 month; |
| 148 | u8 day; |
| 149 | u8 hour; |
| 150 | u8 minute; |
| 151 | u8 second; |
| 152 | u8 pad1; |
| 153 | u32 nanosecond; |
| 154 | s16 timezone; |
| 155 | u8 daylight; |
| 156 | u8 pad2; |
| 157 | } efi_time_t; |
| 158 | |
| 159 | typedef struct { |
| 160 | u32 resolution; |
| 161 | u32 accuracy; |
| 162 | u8 sets_to_zero; |
| 163 | } efi_time_cap_t; |
| 164 | |
Matt Fleming | 677703c | 2014-01-10 13:47:37 +0000 | [diff] [blame] | 165 | typedef struct { |
| 166 | efi_table_hdr_t hdr; |
| 167 | u32 raise_tpl; |
| 168 | u32 restore_tpl; |
| 169 | u32 allocate_pages; |
| 170 | u32 free_pages; |
| 171 | u32 get_memory_map; |
| 172 | u32 allocate_pool; |
| 173 | u32 free_pool; |
| 174 | u32 create_event; |
| 175 | u32 set_timer; |
| 176 | u32 wait_for_event; |
| 177 | u32 signal_event; |
| 178 | u32 close_event; |
| 179 | u32 check_event; |
| 180 | u32 install_protocol_interface; |
| 181 | u32 reinstall_protocol_interface; |
| 182 | u32 uninstall_protocol_interface; |
| 183 | u32 handle_protocol; |
| 184 | u32 __reserved; |
| 185 | u32 register_protocol_notify; |
| 186 | u32 locate_handle; |
| 187 | u32 locate_device_path; |
| 188 | u32 install_configuration_table; |
| 189 | u32 load_image; |
| 190 | u32 start_image; |
| 191 | u32 exit; |
| 192 | u32 unload_image; |
| 193 | u32 exit_boot_services; |
| 194 | u32 get_next_monotonic_count; |
| 195 | u32 stall; |
| 196 | u32 set_watchdog_timer; |
| 197 | u32 connect_controller; |
| 198 | u32 disconnect_controller; |
| 199 | u32 open_protocol; |
| 200 | u32 close_protocol; |
| 201 | u32 open_protocol_information; |
| 202 | u32 protocols_per_handle; |
| 203 | u32 locate_handle_buffer; |
| 204 | u32 locate_protocol; |
| 205 | u32 install_multiple_protocol_interfaces; |
| 206 | u32 uninstall_multiple_protocol_interfaces; |
| 207 | u32 calculate_crc32; |
| 208 | u32 copy_mem; |
| 209 | u32 set_mem; |
| 210 | u32 create_event_ex; |
| 211 | } __packed efi_boot_services_32_t; |
| 212 | |
| 213 | typedef struct { |
| 214 | efi_table_hdr_t hdr; |
| 215 | u64 raise_tpl; |
| 216 | u64 restore_tpl; |
| 217 | u64 allocate_pages; |
| 218 | u64 free_pages; |
| 219 | u64 get_memory_map; |
| 220 | u64 allocate_pool; |
| 221 | u64 free_pool; |
| 222 | u64 create_event; |
| 223 | u64 set_timer; |
| 224 | u64 wait_for_event; |
| 225 | u64 signal_event; |
| 226 | u64 close_event; |
| 227 | u64 check_event; |
| 228 | u64 install_protocol_interface; |
| 229 | u64 reinstall_protocol_interface; |
| 230 | u64 uninstall_protocol_interface; |
| 231 | u64 handle_protocol; |
| 232 | u64 __reserved; |
| 233 | u64 register_protocol_notify; |
| 234 | u64 locate_handle; |
| 235 | u64 locate_device_path; |
| 236 | u64 install_configuration_table; |
| 237 | u64 load_image; |
| 238 | u64 start_image; |
| 239 | u64 exit; |
| 240 | u64 unload_image; |
| 241 | u64 exit_boot_services; |
| 242 | u64 get_next_monotonic_count; |
| 243 | u64 stall; |
| 244 | u64 set_watchdog_timer; |
| 245 | u64 connect_controller; |
| 246 | u64 disconnect_controller; |
| 247 | u64 open_protocol; |
| 248 | u64 close_protocol; |
| 249 | u64 open_protocol_information; |
| 250 | u64 protocols_per_handle; |
| 251 | u64 locate_handle_buffer; |
| 252 | u64 locate_protocol; |
| 253 | u64 install_multiple_protocol_interfaces; |
| 254 | u64 uninstall_multiple_protocol_interfaces; |
| 255 | u64 calculate_crc32; |
| 256 | u64 copy_mem; |
| 257 | u64 set_mem; |
| 258 | u64 create_event_ex; |
| 259 | } __packed efi_boot_services_64_t; |
| 260 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 261 | /* |
Matt Fleming | f30ca6b | 2011-11-15 12:56:32 +0000 | [diff] [blame] | 262 | * EFI Boot Services table |
| 263 | */ |
| 264 | typedef struct { |
| 265 | efi_table_hdr_t hdr; |
| 266 | void *raise_tpl; |
| 267 | void *restore_tpl; |
Roy Franz | ed37ddf | 2013-09-22 15:45:26 -0700 | [diff] [blame] | 268 | efi_status_t (*allocate_pages)(int, int, unsigned long, |
| 269 | efi_physical_addr_t *); |
| 270 | efi_status_t (*free_pages)(efi_physical_addr_t, unsigned long); |
| 271 | efi_status_t (*get_memory_map)(unsigned long *, void *, unsigned long *, |
| 272 | unsigned long *, u32 *); |
| 273 | efi_status_t (*allocate_pool)(int, unsigned long, void **); |
| 274 | efi_status_t (*free_pool)(void *); |
Matt Fleming | f30ca6b | 2011-11-15 12:56:32 +0000 | [diff] [blame] | 275 | void *create_event; |
| 276 | void *set_timer; |
| 277 | void *wait_for_event; |
| 278 | void *signal_event; |
| 279 | void *close_event; |
| 280 | void *check_event; |
| 281 | void *install_protocol_interface; |
| 282 | void *reinstall_protocol_interface; |
| 283 | void *uninstall_protocol_interface; |
Roy Franz | ed37ddf | 2013-09-22 15:45:26 -0700 | [diff] [blame] | 284 | efi_status_t (*handle_protocol)(efi_handle_t, efi_guid_t *, void **); |
Matt Fleming | f30ca6b | 2011-11-15 12:56:32 +0000 | [diff] [blame] | 285 | void *__reserved; |
| 286 | void *register_protocol_notify; |
Ard Biesheuvel | fc37206 | 2016-04-25 21:06:49 +0100 | [diff] [blame] | 287 | efi_status_t (*locate_handle)(int, efi_guid_t *, void *, |
| 288 | unsigned long *, efi_handle_t *); |
Matt Fleming | f30ca6b | 2011-11-15 12:56:32 +0000 | [diff] [blame] | 289 | void *locate_device_path; |
Ard Biesheuvel | 801820b | 2016-04-25 21:06:53 +0100 | [diff] [blame] | 290 | efi_status_t (*install_configuration_table)(efi_guid_t *, void *); |
Matt Fleming | f30ca6b | 2011-11-15 12:56:32 +0000 | [diff] [blame] | 291 | void *load_image; |
| 292 | void *start_image; |
| 293 | void *exit; |
| 294 | void *unload_image; |
Roy Franz | ed37ddf | 2013-09-22 15:45:26 -0700 | [diff] [blame] | 295 | efi_status_t (*exit_boot_services)(efi_handle_t, unsigned long); |
Matt Fleming | f30ca6b | 2011-11-15 12:56:32 +0000 | [diff] [blame] | 296 | void *get_next_monotonic_count; |
| 297 | void *stall; |
| 298 | void *set_watchdog_timer; |
| 299 | void *connect_controller; |
| 300 | void *disconnect_controller; |
| 301 | void *open_protocol; |
| 302 | void *close_protocol; |
| 303 | void *open_protocol_information; |
| 304 | void *protocols_per_handle; |
| 305 | void *locate_handle_buffer; |
Ard Biesheuvel | e4fbf47 | 2016-01-10 11:29:07 +0100 | [diff] [blame] | 306 | efi_status_t (*locate_protocol)(efi_guid_t *, void *, void **); |
Matt Fleming | f30ca6b | 2011-11-15 12:56:32 +0000 | [diff] [blame] | 307 | void *install_multiple_protocol_interfaces; |
| 308 | void *uninstall_multiple_protocol_interfaces; |
| 309 | void *calculate_crc32; |
| 310 | void *copy_mem; |
| 311 | void *set_mem; |
| 312 | void *create_event_ex; |
| 313 | } efi_boot_services_t; |
| 314 | |
Matthew Garrett | dd5fc85 | 2012-12-05 14:33:26 -0700 | [diff] [blame] | 315 | typedef enum { |
| 316 | EfiPciIoWidthUint8, |
| 317 | EfiPciIoWidthUint16, |
| 318 | EfiPciIoWidthUint32, |
| 319 | EfiPciIoWidthUint64, |
| 320 | EfiPciIoWidthFifoUint8, |
| 321 | EfiPciIoWidthFifoUint16, |
| 322 | EfiPciIoWidthFifoUint32, |
| 323 | EfiPciIoWidthFifoUint64, |
| 324 | EfiPciIoWidthFillUint8, |
| 325 | EfiPciIoWidthFillUint16, |
| 326 | EfiPciIoWidthFillUint32, |
| 327 | EfiPciIoWidthFillUint64, |
| 328 | EfiPciIoWidthMaximum |
| 329 | } EFI_PCI_IO_PROTOCOL_WIDTH; |
| 330 | |
| 331 | typedef enum { |
| 332 | EfiPciIoAttributeOperationGet, |
| 333 | EfiPciIoAttributeOperationSet, |
| 334 | EfiPciIoAttributeOperationEnable, |
| 335 | EfiPciIoAttributeOperationDisable, |
| 336 | EfiPciIoAttributeOperationSupported, |
| 337 | EfiPciIoAttributeOperationMaximum |
| 338 | } EFI_PCI_IO_PROTOCOL_ATTRIBUTE_OPERATION; |
| 339 | |
Matt Fleming | 677703c | 2014-01-10 13:47:37 +0000 | [diff] [blame] | 340 | typedef struct { |
| 341 | u32 read; |
| 342 | u32 write; |
| 343 | } efi_pci_io_protocol_access_32_t; |
| 344 | |
| 345 | typedef struct { |
| 346 | u64 read; |
| 347 | u64 write; |
| 348 | } efi_pci_io_protocol_access_64_t; |
Matthew Garrett | dd5fc85 | 2012-12-05 14:33:26 -0700 | [diff] [blame] | 349 | |
| 350 | typedef struct { |
| 351 | void *read; |
| 352 | void *write; |
| 353 | } efi_pci_io_protocol_access_t; |
| 354 | |
| 355 | typedef struct { |
Matt Fleming | 677703c | 2014-01-10 13:47:37 +0000 | [diff] [blame] | 356 | u32 poll_mem; |
| 357 | u32 poll_io; |
| 358 | efi_pci_io_protocol_access_32_t mem; |
| 359 | efi_pci_io_protocol_access_32_t io; |
| 360 | efi_pci_io_protocol_access_32_t pci; |
| 361 | u32 copy_mem; |
| 362 | u32 map; |
| 363 | u32 unmap; |
| 364 | u32 allocate_buffer; |
| 365 | u32 free_buffer; |
| 366 | u32 flush; |
| 367 | u32 get_location; |
| 368 | u32 attributes; |
| 369 | u32 get_bar_attributes; |
| 370 | u32 set_bar_attributes; |
| 371 | uint64_t romsize; |
| 372 | void *romimage; |
| 373 | } efi_pci_io_protocol_32; |
| 374 | |
| 375 | typedef struct { |
| 376 | u64 poll_mem; |
| 377 | u64 poll_io; |
| 378 | efi_pci_io_protocol_access_64_t mem; |
| 379 | efi_pci_io_protocol_access_64_t io; |
| 380 | efi_pci_io_protocol_access_64_t pci; |
| 381 | u64 copy_mem; |
| 382 | u64 map; |
| 383 | u64 unmap; |
| 384 | u64 allocate_buffer; |
| 385 | u64 free_buffer; |
| 386 | u64 flush; |
| 387 | u64 get_location; |
| 388 | u64 attributes; |
| 389 | u64 get_bar_attributes; |
| 390 | u64 set_bar_attributes; |
| 391 | uint64_t romsize; |
| 392 | void *romimage; |
| 393 | } efi_pci_io_protocol_64; |
| 394 | |
| 395 | typedef struct { |
Matthew Garrett | dd5fc85 | 2012-12-05 14:33:26 -0700 | [diff] [blame] | 396 | void *poll_mem; |
| 397 | void *poll_io; |
| 398 | efi_pci_io_protocol_access_t mem; |
| 399 | efi_pci_io_protocol_access_t io; |
| 400 | efi_pci_io_protocol_access_t pci; |
| 401 | void *copy_mem; |
| 402 | void *map; |
| 403 | void *unmap; |
| 404 | void *allocate_buffer; |
| 405 | void *free_buffer; |
| 406 | void *flush; |
| 407 | void *get_location; |
| 408 | void *attributes; |
| 409 | void *get_bar_attributes; |
| 410 | void *set_bar_attributes; |
| 411 | uint64_t romsize; |
| 412 | void *romimage; |
| 413 | } efi_pci_io_protocol; |
| 414 | |
| 415 | #define EFI_PCI_IO_ATTRIBUTE_ISA_MOTHERBOARD_IO 0x0001 |
| 416 | #define EFI_PCI_IO_ATTRIBUTE_ISA_IO 0x0002 |
| 417 | #define EFI_PCI_IO_ATTRIBUTE_VGA_PALETTE_IO 0x0004 |
| 418 | #define EFI_PCI_IO_ATTRIBUTE_VGA_MEMORY 0x0008 |
| 419 | #define EFI_PCI_IO_ATTRIBUTE_VGA_IO 0x0010 |
| 420 | #define EFI_PCI_IO_ATTRIBUTE_IDE_PRIMARY_IO 0x0020 |
| 421 | #define EFI_PCI_IO_ATTRIBUTE_IDE_SECONDARY_IO 0x0040 |
| 422 | #define EFI_PCI_IO_ATTRIBUTE_MEMORY_WRITE_COMBINE 0x0080 |
| 423 | #define EFI_PCI_IO_ATTRIBUTE_IO 0x0100 |
| 424 | #define EFI_PCI_IO_ATTRIBUTE_MEMORY 0x0200 |
| 425 | #define EFI_PCI_IO_ATTRIBUTE_BUS_MASTER 0x0400 |
| 426 | #define EFI_PCI_IO_ATTRIBUTE_MEMORY_CACHED 0x0800 |
| 427 | #define EFI_PCI_IO_ATTRIBUTE_MEMORY_DISABLE 0x1000 |
| 428 | #define EFI_PCI_IO_ATTRIBUTE_EMBEDDED_DEVICE 0x2000 |
| 429 | #define EFI_PCI_IO_ATTRIBUTE_EMBEDDED_ROM 0x4000 |
| 430 | #define EFI_PCI_IO_ATTRIBUTE_DUAL_ADDRESS_CYCLE 0x8000 |
| 431 | #define EFI_PCI_IO_ATTRIBUTE_ISA_IO_16 0x10000 |
| 432 | #define EFI_PCI_IO_ATTRIBUTE_VGA_PALETTE_IO_16 0x20000 |
| 433 | #define EFI_PCI_IO_ATTRIBUTE_VGA_IO_16 0x40000 |
| 434 | |
Matt Fleming | f30ca6b | 2011-11-15 12:56:32 +0000 | [diff] [blame] | 435 | /* |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 436 | * Types and defines for EFI ResetSystem |
| 437 | */ |
| 438 | #define EFI_RESET_COLD 0 |
| 439 | #define EFI_RESET_WARM 1 |
| 440 | #define EFI_RESET_SHUTDOWN 2 |
| 441 | |
| 442 | /* |
| 443 | * EFI Runtime Services table |
| 444 | */ |
| 445 | #define EFI_RUNTIME_SERVICES_SIGNATURE ((u64)0x5652453544e5552ULL) |
| 446 | #define EFI_RUNTIME_SERVICES_REVISION 0x00010000 |
| 447 | |
| 448 | typedef struct { |
| 449 | efi_table_hdr_t hdr; |
Matt Fleming | 677703c | 2014-01-10 13:47:37 +0000 | [diff] [blame] | 450 | u32 get_time; |
| 451 | u32 set_time; |
| 452 | u32 get_wakeup_time; |
| 453 | u32 set_wakeup_time; |
| 454 | u32 set_virtual_address_map; |
| 455 | u32 convert_pointer; |
| 456 | u32 get_variable; |
| 457 | u32 get_next_variable; |
| 458 | u32 set_variable; |
| 459 | u32 get_next_high_mono_count; |
| 460 | u32 reset_system; |
| 461 | u32 update_capsule; |
| 462 | u32 query_capsule_caps; |
| 463 | u32 query_variable_info; |
| 464 | } efi_runtime_services_32_t; |
| 465 | |
| 466 | typedef struct { |
| 467 | efi_table_hdr_t hdr; |
| 468 | u64 get_time; |
| 469 | u64 set_time; |
| 470 | u64 get_wakeup_time; |
| 471 | u64 set_wakeup_time; |
| 472 | u64 set_virtual_address_map; |
| 473 | u64 convert_pointer; |
| 474 | u64 get_variable; |
| 475 | u64 get_next_variable; |
| 476 | u64 set_variable; |
| 477 | u64 get_next_high_mono_count; |
| 478 | u64 reset_system; |
| 479 | u64 update_capsule; |
| 480 | u64 query_capsule_caps; |
| 481 | u64 query_variable_info; |
| 482 | } efi_runtime_services_64_t; |
| 483 | |
| 484 | typedef struct { |
| 485 | efi_table_hdr_t hdr; |
Borislav Petkov | 43ab047 | 2013-06-02 14:56:07 +0200 | [diff] [blame] | 486 | void *get_time; |
| 487 | void *set_time; |
| 488 | void *get_wakeup_time; |
| 489 | void *set_wakeup_time; |
| 490 | void *set_virtual_address_map; |
| 491 | void *convert_pointer; |
| 492 | void *get_variable; |
| 493 | void *get_next_variable; |
| 494 | void *set_variable; |
| 495 | void *get_next_high_mono_count; |
| 496 | void *reset_system; |
| 497 | void *update_capsule; |
| 498 | void *query_capsule_caps; |
| 499 | void *query_variable_info; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 500 | } efi_runtime_services_t; |
| 501 | |
| 502 | typedef efi_status_t efi_get_time_t (efi_time_t *tm, efi_time_cap_t *tc); |
| 503 | typedef efi_status_t efi_set_time_t (efi_time_t *tm); |
| 504 | typedef efi_status_t efi_get_wakeup_time_t (efi_bool_t *enabled, efi_bool_t *pending, |
| 505 | efi_time_t *tm); |
| 506 | typedef efi_status_t efi_set_wakeup_time_t (efi_bool_t enabled, efi_time_t *tm); |
| 507 | typedef efi_status_t efi_get_variable_t (efi_char16_t *name, efi_guid_t *vendor, u32 *attr, |
| 508 | unsigned long *data_size, void *data); |
| 509 | typedef efi_status_t efi_get_next_variable_t (unsigned long *name_size, efi_char16_t *name, |
| 510 | efi_guid_t *vendor); |
| 511 | typedef efi_status_t efi_set_variable_t (efi_char16_t *name, efi_guid_t *vendor, |
Matthew Garrett | f7a2d73 | 2011-06-06 15:36:24 -0400 | [diff] [blame] | 512 | u32 attr, unsigned long data_size, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 513 | void *data); |
| 514 | typedef efi_status_t efi_get_next_high_mono_count_t (u32 *count); |
| 515 | typedef void efi_reset_system_t (int reset_type, efi_status_t status, |
| 516 | unsigned long data_size, efi_char16_t *data); |
| 517 | typedef efi_status_t efi_set_virtual_address_map_t (unsigned long memory_map_size, |
| 518 | unsigned long descriptor_size, |
| 519 | u32 descriptor_version, |
| 520 | efi_memory_desc_t *virtual_map); |
Matthew Garrett | 3b37023 | 2011-06-06 15:36:25 -0400 | [diff] [blame] | 521 | typedef efi_status_t efi_query_variable_info_t(u32 attr, |
| 522 | u64 *storage_space, |
| 523 | u64 *remaining_space, |
| 524 | u64 *max_variable_size); |
| 525 | typedef efi_status_t efi_update_capsule_t(efi_capsule_header_t **capsules, |
| 526 | unsigned long count, |
| 527 | unsigned long sg_list); |
| 528 | typedef efi_status_t efi_query_capsule_caps_t(efi_capsule_header_t **capsules, |
| 529 | unsigned long count, |
| 530 | u64 *max_size, |
| 531 | int *reset_type); |
Ard Biesheuvel | ca0e30d | 2016-02-01 22:06:58 +0000 | [diff] [blame] | 532 | typedef efi_status_t efi_query_variable_store_t(u32 attributes, |
| 533 | unsigned long size, |
| 534 | bool nonblocking); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 535 | |
Ard Biesheuvel | 022ee6c | 2014-06-26 12:09:05 +0200 | [diff] [blame] | 536 | void efi_native_runtime_setup(void); |
| 537 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 538 | /* |
Peter Jones | 54fd11f | 2016-06-25 08:20:25 +0100 | [diff] [blame] | 539 | * EFI Configuration Table and GUID definitions |
| 540 | * |
Ingo Molnar | 7fb2b43 | 2016-06-27 12:49:20 +0200 | [diff] [blame] | 541 | * These are all defined in a single line to make them easier to |
| 542 | * grep for and to see them at a glance - while still having a |
| 543 | * similar structure to the definitions in the spec. |
| 544 | * |
| 545 | * Here's how they are structured: |
Peter Jones | 54fd11f | 2016-06-25 08:20:25 +0100 | [diff] [blame] | 546 | * |
| 547 | * GUID: 12345678-1234-1234-1234-123456789012 |
| 548 | * Spec: |
| 549 | * #define EFI_SOME_PROTOCOL_GUID \ |
| 550 | * {0x12345678,0x1234,0x1234,\ |
| 551 | * {0x12,0x34,0x12,0x34,0x56,0x78,0x90,0x12}} |
| 552 | * Here: |
Ingo Molnar | 7fb2b43 | 2016-06-27 12:49:20 +0200 | [diff] [blame] | 553 | * #define SOME_PROTOCOL_GUID EFI_GUID(0x12345678, 0x1234, 0x1234, 0x12, 0x34, 0x12, 0x34, 0x56, 0x78, 0x90, 0x12) |
| 554 | * ^ tabs ^extra space |
| 555 | * |
| 556 | * Note that the 'extra space' separates the values at the same place |
| 557 | * where the UEFI SPEC breaks the line. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 558 | */ |
Ingo Molnar | 7fb2b43 | 2016-06-27 12:49:20 +0200 | [diff] [blame] | 559 | #define NULL_GUID EFI_GUID(0x00000000, 0x0000, 0x0000, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00) |
| 560 | #define MPS_TABLE_GUID EFI_GUID(0xeb9d2d2f, 0x2d88, 0x11d3, 0x9a, 0x16, 0x00, 0x90, 0x27, 0x3f, 0xc1, 0x4d) |
| 561 | #define ACPI_TABLE_GUID EFI_GUID(0xeb9d2d30, 0x2d88, 0x11d3, 0x9a, 0x16, 0x00, 0x90, 0x27, 0x3f, 0xc1, 0x4d) |
| 562 | #define ACPI_20_TABLE_GUID EFI_GUID(0x8868e871, 0xe4f1, 0x11d3, 0xbc, 0x22, 0x00, 0x80, 0xc7, 0x3c, 0x88, 0x81) |
| 563 | #define SMBIOS_TABLE_GUID EFI_GUID(0xeb9d2d31, 0x2d88, 0x11d3, 0x9a, 0x16, 0x00, 0x90, 0x27, 0x3f, 0xc1, 0x4d) |
| 564 | #define SMBIOS3_TABLE_GUID EFI_GUID(0xf2fd1544, 0x9794, 0x4a2c, 0x99, 0x2e, 0xe5, 0xbb, 0xcf, 0x20, 0xe3, 0x94) |
| 565 | #define SAL_SYSTEM_TABLE_GUID EFI_GUID(0xeb9d2d32, 0x2d88, 0x11d3, 0x9a, 0x16, 0x00, 0x90, 0x27, 0x3f, 0xc1, 0x4d) |
| 566 | #define HCDP_TABLE_GUID EFI_GUID(0xf951938d, 0x620b, 0x42ef, 0x82, 0x79, 0xa8, 0x4b, 0x79, 0x61, 0x78, 0x98) |
| 567 | #define UGA_IO_PROTOCOL_GUID EFI_GUID(0x61a4d49e, 0x6f68, 0x4f1b, 0xb9, 0x22, 0xa8, 0x6e, 0xed, 0x0b, 0x07, 0xa2) |
| 568 | #define EFI_GLOBAL_VARIABLE_GUID EFI_GUID(0x8be4df61, 0x93ca, 0x11d2, 0xaa, 0x0d, 0x00, 0xe0, 0x98, 0x03, 0x2b, 0x8c) |
| 569 | #define UV_SYSTEM_TABLE_GUID EFI_GUID(0x3b13a7d4, 0x633e, 0x11dd, 0x93, 0xec, 0xda, 0x25, 0x56, 0xd8, 0x95, 0x93) |
| 570 | #define LINUX_EFI_CRASH_GUID EFI_GUID(0xcfc8fc79, 0xbe2e, 0x4ddc, 0x97, 0xf0, 0x9f, 0x98, 0xbf, 0xe2, 0x98, 0xa0) |
| 571 | #define LOADED_IMAGE_PROTOCOL_GUID EFI_GUID(0x5b1b31a1, 0x9562, 0x11d2, 0x8e, 0x3f, 0x00, 0xa0, 0xc9, 0x69, 0x72, 0x3b) |
| 572 | #define EFI_GRAPHICS_OUTPUT_PROTOCOL_GUID EFI_GUID(0x9042a9de, 0x23dc, 0x4a38, 0x96, 0xfb, 0x7a, 0xde, 0xd0, 0x80, 0x51, 0x6a) |
| 573 | #define EFI_UGA_PROTOCOL_GUID EFI_GUID(0x982c298b, 0xf4fa, 0x41cb, 0xb8, 0x38, 0x77, 0xaa, 0x68, 0x8f, 0xb8, 0x39) |
| 574 | #define EFI_PCI_IO_PROTOCOL_GUID EFI_GUID(0x4cf5b200, 0x68b8, 0x4ca5, 0x9e, 0xec, 0xb2, 0x3e, 0x3f, 0x50, 0x02, 0x9a) |
| 575 | #define EFI_FILE_INFO_ID EFI_GUID(0x09576e92, 0x6d3f, 0x11d2, 0x8e, 0x39, 0x00, 0xa0, 0xc9, 0x69, 0x72, 0x3b) |
| 576 | #define EFI_SYSTEM_RESOURCE_TABLE_GUID EFI_GUID(0xb122a263, 0x3661, 0x4f68, 0x99, 0x29, 0x78, 0xf8, 0xb0, 0xd6, 0x21, 0x80) |
| 577 | #define EFI_FILE_SYSTEM_GUID EFI_GUID(0x964e5b22, 0x6459, 0x11d2, 0x8e, 0x39, 0x00, 0xa0, 0xc9, 0x69, 0x72, 0x3b) |
| 578 | #define DEVICE_TREE_GUID EFI_GUID(0xb1b621d5, 0xf19c, 0x41a5, 0x83, 0x0b, 0xd9, 0x15, 0x2c, 0x69, 0xaa, 0xe0) |
| 579 | #define EFI_PROPERTIES_TABLE_GUID EFI_GUID(0x880aaca3, 0x4adc, 0x4a04, 0x90, 0x79, 0xb7, 0x47, 0x34, 0x08, 0x25, 0xe5) |
| 580 | #define EFI_RNG_PROTOCOL_GUID EFI_GUID(0x3152bca5, 0xeade, 0x433d, 0x86, 0x2e, 0xc0, 0x1c, 0xdc, 0x29, 0x1f, 0x44) |
| 581 | #define EFI_MEMORY_ATTRIBUTES_TABLE_GUID EFI_GUID(0xdcfa911d, 0x26eb, 0x469f, 0xa2, 0x20, 0x38, 0xb7, 0xdc, 0x46, 0x12, 0x20) |
| 582 | #define EFI_CONSOLE_OUT_DEVICE_GUID EFI_GUID(0xd3b36f2c, 0xd551, 0x11d4, 0x9a, 0x46, 0x00, 0x90, 0x27, 0x3f, 0xc1, 0x4d) |
Ard Biesheuvel | fc37206 | 2016-04-25 21:06:49 +0100 | [diff] [blame] | 583 | |
Ard Biesheuvel | 801820b | 2016-04-25 21:06:53 +0100 | [diff] [blame] | 584 | /* |
| 585 | * This GUID is used to pass to the kernel proper the struct screen_info |
| 586 | * structure that was populated by the stub based on the GOP protocol instance |
| 587 | * associated with ConOut |
| 588 | */ |
Ingo Molnar | 7fb2b43 | 2016-06-27 12:49:20 +0200 | [diff] [blame] | 589 | #define LINUX_EFI_ARM_SCREEN_INFO_TABLE_GUID EFI_GUID(0xe03fc20a, 0x85dc, 0x406e, 0xb9, 0x0e, 0x4a, 0xb5, 0x02, 0x37, 0x1d, 0x95) |
| 590 | #define LINUX_EFI_LOADER_ENTRY_GUID EFI_GUID(0x4a67b082, 0x0a4c, 0x41cf, 0xb6, 0xc7, 0x44, 0x0b, 0x29, 0xbb, 0x8c, 0x4f) |
Compostella, Jeremy | 06f7d4a | 2016-04-25 21:06:57 +0100 | [diff] [blame] | 591 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 592 | typedef struct { |
| 593 | efi_guid_t guid; |
Olof Johansson | 1adbfa3 | 2012-02-12 13:24:29 -0800 | [diff] [blame] | 594 | u64 table; |
| 595 | } efi_config_table_64_t; |
| 596 | |
| 597 | typedef struct { |
| 598 | efi_guid_t guid; |
| 599 | u32 table; |
| 600 | } efi_config_table_32_t; |
| 601 | |
| 602 | typedef struct { |
| 603 | efi_guid_t guid; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 604 | unsigned long table; |
| 605 | } efi_config_table_t; |
| 606 | |
Leif Lindholm | 272686b | 2013-09-05 11:34:54 +0100 | [diff] [blame] | 607 | typedef struct { |
| 608 | efi_guid_t guid; |
| 609 | const char *name; |
| 610 | unsigned long *ptr; |
| 611 | } efi_config_table_type_t; |
| 612 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 613 | #define EFI_SYSTEM_TABLE_SIGNATURE ((u64)0x5453595320494249ULL) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 614 | |
Matthew Garrett | 3b37023 | 2011-06-06 15:36:25 -0400 | [diff] [blame] | 615 | #define EFI_2_30_SYSTEM_TABLE_REVISION ((2 << 16) | (30)) |
| 616 | #define EFI_2_20_SYSTEM_TABLE_REVISION ((2 << 16) | (20)) |
| 617 | #define EFI_2_10_SYSTEM_TABLE_REVISION ((2 << 16) | (10)) |
| 618 | #define EFI_2_00_SYSTEM_TABLE_REVISION ((2 << 16) | (00)) |
| 619 | #define EFI_1_10_SYSTEM_TABLE_REVISION ((1 << 16) | (10)) |
| 620 | #define EFI_1_02_SYSTEM_TABLE_REVISION ((1 << 16) | (02)) |
| 621 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 622 | typedef struct { |
| 623 | efi_table_hdr_t hdr; |
Olof Johansson | 1adbfa3 | 2012-02-12 13:24:29 -0800 | [diff] [blame] | 624 | u64 fw_vendor; /* physical addr of CHAR16 vendor string */ |
| 625 | u32 fw_revision; |
| 626 | u32 __pad1; |
| 627 | u64 con_in_handle; |
| 628 | u64 con_in; |
| 629 | u64 con_out_handle; |
| 630 | u64 con_out; |
| 631 | u64 stderr_handle; |
| 632 | u64 stderr; |
| 633 | u64 runtime; |
| 634 | u64 boottime; |
| 635 | u32 nr_tables; |
| 636 | u32 __pad2; |
| 637 | u64 tables; |
| 638 | } efi_system_table_64_t; |
| 639 | |
| 640 | typedef struct { |
| 641 | efi_table_hdr_t hdr; |
| 642 | u32 fw_vendor; /* physical addr of CHAR16 vendor string */ |
| 643 | u32 fw_revision; |
| 644 | u32 con_in_handle; |
| 645 | u32 con_in; |
| 646 | u32 con_out_handle; |
| 647 | u32 con_out; |
| 648 | u32 stderr_handle; |
| 649 | u32 stderr; |
| 650 | u32 runtime; |
| 651 | u32 boottime; |
| 652 | u32 nr_tables; |
| 653 | u32 tables; |
| 654 | } efi_system_table_32_t; |
| 655 | |
| 656 | typedef struct { |
| 657 | efi_table_hdr_t hdr; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 658 | unsigned long fw_vendor; /* physical addr of CHAR16 vendor string */ |
| 659 | u32 fw_revision; |
| 660 | unsigned long con_in_handle; |
| 661 | unsigned long con_in; |
| 662 | unsigned long con_out_handle; |
| 663 | unsigned long con_out; |
| 664 | unsigned long stderr_handle; |
| 665 | unsigned long stderr; |
| 666 | efi_runtime_services_t *runtime; |
Matt Fleming | f30ca6b | 2011-11-15 12:56:32 +0000 | [diff] [blame] | 667 | efi_boot_services_t *boottime; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 668 | unsigned long nr_tables; |
| 669 | unsigned long tables; |
| 670 | } efi_system_table_t; |
| 671 | |
| 672 | struct efi_memory_map { |
Ard Biesheuvel | 44511fb | 2015-10-23 11:48:16 +0200 | [diff] [blame] | 673 | phys_addr_t phys_map; |
Matt Tolentino | 7ae65fd | 2005-09-03 15:56:27 -0700 | [diff] [blame] | 674 | void *map; |
| 675 | void *map_end; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 676 | int nr_map; |
| 677 | unsigned long desc_version; |
Matt Tolentino | 7ae65fd | 2005-09-03 15:56:27 -0700 | [diff] [blame] | 678 | unsigned long desc_size; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 679 | }; |
| 680 | |
Mark Salter | 0302f71 | 2013-12-30 12:12:12 -0500 | [diff] [blame] | 681 | struct efi_fdt_params { |
| 682 | u64 system_table; |
| 683 | u64 mmap; |
| 684 | u32 mmap_size; |
| 685 | u32 desc_size; |
| 686 | u32 desc_ver; |
| 687 | }; |
| 688 | |
Matt Fleming | 8e84f34 | 2011-11-15 12:56:50 +0000 | [diff] [blame] | 689 | typedef struct { |
| 690 | u32 revision; |
Matt Fleming | 677703c | 2014-01-10 13:47:37 +0000 | [diff] [blame] | 691 | u32 parent_handle; |
| 692 | u32 system_table; |
| 693 | u32 device_handle; |
| 694 | u32 file_path; |
| 695 | u32 reserved; |
| 696 | u32 load_options_size; |
| 697 | u32 load_options; |
| 698 | u32 image_base; |
| 699 | __aligned_u64 image_size; |
| 700 | unsigned int image_code_type; |
| 701 | unsigned int image_data_type; |
| 702 | unsigned long unload; |
| 703 | } efi_loaded_image_32_t; |
| 704 | |
| 705 | typedef struct { |
| 706 | u32 revision; |
| 707 | u64 parent_handle; |
| 708 | u64 system_table; |
| 709 | u64 device_handle; |
| 710 | u64 file_path; |
| 711 | u64 reserved; |
| 712 | u32 load_options_size; |
| 713 | u64 load_options; |
| 714 | u64 image_base; |
| 715 | __aligned_u64 image_size; |
| 716 | unsigned int image_code_type; |
| 717 | unsigned int image_data_type; |
| 718 | unsigned long unload; |
| 719 | } efi_loaded_image_64_t; |
| 720 | |
| 721 | typedef struct { |
| 722 | u32 revision; |
Matt Fleming | 8e84f34 | 2011-11-15 12:56:50 +0000 | [diff] [blame] | 723 | void *parent_handle; |
| 724 | efi_system_table_t *system_table; |
| 725 | void *device_handle; |
| 726 | void *file_path; |
| 727 | void *reserved; |
| 728 | u32 load_options_size; |
| 729 | void *load_options; |
| 730 | void *image_base; |
| 731 | __aligned_u64 image_size; |
| 732 | unsigned int image_code_type; |
| 733 | unsigned int image_data_type; |
| 734 | unsigned long unload; |
| 735 | } efi_loaded_image_t; |
| 736 | |
Matt Fleming | 55839d5 | 2011-08-11 10:28:06 +0100 | [diff] [blame] | 737 | |
| 738 | typedef struct { |
| 739 | u64 size; |
| 740 | u64 file_size; |
| 741 | u64 phys_size; |
| 742 | efi_time_t create_time; |
| 743 | efi_time_t last_access_time; |
| 744 | efi_time_t modification_time; |
| 745 | __aligned_u64 attribute; |
| 746 | efi_char16_t filename[1]; |
| 747 | } efi_file_info_t; |
| 748 | |
Matt Fleming | 677703c | 2014-01-10 13:47:37 +0000 | [diff] [blame] | 749 | typedef struct { |
| 750 | u64 revision; |
| 751 | u32 open; |
| 752 | u32 close; |
| 753 | u32 delete; |
| 754 | u32 read; |
| 755 | u32 write; |
| 756 | u32 get_position; |
| 757 | u32 set_position; |
| 758 | u32 get_info; |
| 759 | u32 set_info; |
| 760 | u32 flush; |
| 761 | } efi_file_handle_32_t; |
| 762 | |
| 763 | typedef struct { |
| 764 | u64 revision; |
| 765 | u64 open; |
| 766 | u64 close; |
| 767 | u64 delete; |
| 768 | u64 read; |
| 769 | u64 write; |
| 770 | u64 get_position; |
| 771 | u64 set_position; |
| 772 | u64 get_info; |
| 773 | u64 set_info; |
| 774 | u64 flush; |
| 775 | } efi_file_handle_64_t; |
| 776 | |
Roy Franz | ed37ddf | 2013-09-22 15:45:26 -0700 | [diff] [blame] | 777 | typedef struct _efi_file_handle { |
Matt Fleming | 55839d5 | 2011-08-11 10:28:06 +0100 | [diff] [blame] | 778 | u64 revision; |
Roy Franz | ed37ddf | 2013-09-22 15:45:26 -0700 | [diff] [blame] | 779 | efi_status_t (*open)(struct _efi_file_handle *, |
| 780 | struct _efi_file_handle **, |
| 781 | efi_char16_t *, u64, u64); |
| 782 | efi_status_t (*close)(struct _efi_file_handle *); |
Matt Fleming | 55839d5 | 2011-08-11 10:28:06 +0100 | [diff] [blame] | 783 | void *delete; |
Roy Franz | ed37ddf | 2013-09-22 15:45:26 -0700 | [diff] [blame] | 784 | efi_status_t (*read)(struct _efi_file_handle *, unsigned long *, |
| 785 | void *); |
Matt Fleming | 55839d5 | 2011-08-11 10:28:06 +0100 | [diff] [blame] | 786 | void *write; |
| 787 | void *get_position; |
| 788 | void *set_position; |
Roy Franz | ed37ddf | 2013-09-22 15:45:26 -0700 | [diff] [blame] | 789 | efi_status_t (*get_info)(struct _efi_file_handle *, efi_guid_t *, |
| 790 | unsigned long *, void *); |
Matt Fleming | 55839d5 | 2011-08-11 10:28:06 +0100 | [diff] [blame] | 791 | void *set_info; |
| 792 | void *flush; |
| 793 | } efi_file_handle_t; |
| 794 | |
Roy Franz | ed37ddf | 2013-09-22 15:45:26 -0700 | [diff] [blame] | 795 | typedef struct _efi_file_io_interface { |
| 796 | u64 revision; |
| 797 | int (*open_volume)(struct _efi_file_io_interface *, |
| 798 | efi_file_handle_t **); |
| 799 | } efi_file_io_interface_t; |
| 800 | |
Matt Fleming | 55839d5 | 2011-08-11 10:28:06 +0100 | [diff] [blame] | 801 | #define EFI_FILE_MODE_READ 0x0000000000000001 |
| 802 | #define EFI_FILE_MODE_WRITE 0x0000000000000002 |
| 803 | #define EFI_FILE_MODE_CREATE 0x8000000000000000 |
| 804 | |
Ard Biesheuvel | bf92486 | 2015-09-09 10:08:15 +0200 | [diff] [blame] | 805 | typedef struct { |
| 806 | u32 version; |
| 807 | u32 length; |
| 808 | u64 memory_protection_attribute; |
| 809 | } efi_properties_table_t; |
| 810 | |
| 811 | #define EFI_PROPERTIES_TABLE_VERSION 0x00010000 |
| 812 | #define EFI_PROPERTIES_RUNTIME_MEMORY_PROTECTION_NON_EXECUTABLE_PE_DATA 0x1 |
| 813 | |
Bjorn Helgaas | b2c99e3 | 2006-03-26 01:37:08 -0800 | [diff] [blame] | 814 | #define EFI_INVALID_TABLE_ADDR (~0UL) |
| 815 | |
Ard Biesheuvel | a604af0 | 2016-04-25 21:06:44 +0100 | [diff] [blame] | 816 | typedef struct { |
| 817 | u32 version; |
| 818 | u32 num_entries; |
| 819 | u32 desc_size; |
| 820 | u32 reserved; |
| 821 | efi_memory_desc_t entry[0]; |
| 822 | } efi_memory_attributes_table_t; |
| 823 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 824 | /* |
| 825 | * All runtime access to EFI goes through this structure: |
| 826 | */ |
| 827 | extern struct efi { |
| 828 | efi_system_table_t *systab; /* EFI system table */ |
Matthew Garrett | 3b37023 | 2011-06-06 15:36:25 -0400 | [diff] [blame] | 829 | unsigned int runtime_version; /* Runtime services version */ |
Bjorn Helgaas | b2c99e3 | 2006-03-26 01:37:08 -0800 | [diff] [blame] | 830 | unsigned long mps; /* MPS table */ |
| 831 | unsigned long acpi; /* ACPI table (IA64 ext 0.71) */ |
| 832 | unsigned long acpi20; /* ACPI table (ACPI 2.0) */ |
Ard Biesheuvel | e1ccbbc | 2014-10-14 16:34:47 +0200 | [diff] [blame] | 833 | unsigned long smbios; /* SMBIOS table (32 bit entry point) */ |
| 834 | unsigned long smbios3; /* SMBIOS table (64 bit entry point) */ |
Bjorn Helgaas | b2c99e3 | 2006-03-26 01:37:08 -0800 | [diff] [blame] | 835 | unsigned long sal_systab; /* SAL system table */ |
| 836 | unsigned long boot_info; /* boot info table */ |
| 837 | unsigned long hcdp; /* HCDP table */ |
| 838 | unsigned long uga; /* UGA table */ |
Russ Anderson | a50f70b | 2008-10-03 11:58:54 -0500 | [diff] [blame] | 839 | unsigned long uv_systab; /* UV system table */ |
Dave Young | a0998eb | 2013-12-20 18:02:17 +0800 | [diff] [blame] | 840 | unsigned long fw_vendor; /* fw_vendor */ |
| 841 | unsigned long runtime; /* runtime table */ |
| 842 | unsigned long config_table; /* config tables */ |
Peter Jones | 0bb5490 | 2015-04-28 18:44:31 -0400 | [diff] [blame] | 843 | unsigned long esrt; /* ESRT table */ |
Ard Biesheuvel | bf92486 | 2015-09-09 10:08:15 +0200 | [diff] [blame] | 844 | unsigned long properties_table; /* properties table */ |
Ard Biesheuvel | a604af0 | 2016-04-25 21:06:44 +0100 | [diff] [blame] | 845 | unsigned long mem_attr_table; /* memory attributes table */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 846 | efi_get_time_t *get_time; |
| 847 | efi_set_time_t *set_time; |
| 848 | efi_get_wakeup_time_t *get_wakeup_time; |
| 849 | efi_set_wakeup_time_t *set_wakeup_time; |
| 850 | efi_get_variable_t *get_variable; |
| 851 | efi_get_next_variable_t *get_next_variable; |
| 852 | efi_set_variable_t *set_variable; |
Ard Biesheuvel | 70d2a3c | 2016-02-01 22:06:56 +0000 | [diff] [blame] | 853 | efi_set_variable_t *set_variable_nonblocking; |
Matthew Garrett | 3b37023 | 2011-06-06 15:36:25 -0400 | [diff] [blame] | 854 | efi_query_variable_info_t *query_variable_info; |
Ard Biesheuvel | d3cac1f | 2016-02-01 22:06:57 +0000 | [diff] [blame] | 855 | efi_query_variable_info_t *query_variable_info_nonblocking; |
Matthew Garrett | 3b37023 | 2011-06-06 15:36:25 -0400 | [diff] [blame] | 856 | efi_update_capsule_t *update_capsule; |
| 857 | efi_query_capsule_caps_t *query_capsule_caps; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 858 | efi_get_next_high_mono_count_t *get_next_high_mono_count; |
| 859 | efi_reset_system_t *reset_system; |
| 860 | efi_set_virtual_address_map_t *set_virtual_address_map; |
Matt Fleming | 884f4f6 | 2016-04-25 21:06:39 +0100 | [diff] [blame] | 861 | struct efi_memory_map memmap; |
Matt Fleming | 3e90959 | 2014-01-15 13:21:22 +0000 | [diff] [blame] | 862 | unsigned long flags; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 863 | } efi; |
| 864 | |
| 865 | static inline int |
| 866 | efi_guidcmp (efi_guid_t left, efi_guid_t right) |
| 867 | { |
| 868 | return memcmp(&left, &right, sizeof (efi_guid_t)); |
| 869 | } |
| 870 | |
| 871 | static inline char * |
Borislav Petkov | 26e0227 | 2014-12-18 16:02:17 +0100 | [diff] [blame] | 872 | efi_guid_to_str(efi_guid_t *guid, char *out) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 873 | { |
Joe Perches | 925ede0bf | 2009-12-14 18:01:14 -0800 | [diff] [blame] | 874 | sprintf(out, "%pUl", guid->b); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 875 | return out; |
| 876 | } |
| 877 | |
| 878 | extern void efi_init (void); |
| 879 | extern void *efi_get_pal_addr (void); |
| 880 | extern void efi_map_pal_code (void); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 881 | extern void efi_memmap_walk (efi_freemem_callback_t callback, void *arg); |
Arnd Bergmann | 70f4f93 | 2016-06-17 16:48:17 +0200 | [diff] [blame] | 882 | extern void efi_gettimeofday (struct timespec64 *ts); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 883 | extern void efi_enter_virtual_mode (void); /* switch EFI to virtual mode, if possible */ |
Josh Triplett | 7851079 | 2012-09-28 17:55:44 -0700 | [diff] [blame] | 884 | #ifdef CONFIG_X86 |
Josh Triplett | 2223af3 | 2012-09-28 17:57:05 -0700 | [diff] [blame] | 885 | extern void efi_late_init(void); |
Josh Triplett | 7851079 | 2012-09-28 17:55:44 -0700 | [diff] [blame] | 886 | extern void efi_free_boot_services(void); |
Ard Biesheuvel | ca0e30d | 2016-02-01 22:06:58 +0000 | [diff] [blame] | 887 | extern efi_status_t efi_query_variable_store(u32 attributes, |
| 888 | unsigned long size, |
| 889 | bool nonblocking); |
Tony Luck | b05b9f5 | 2015-06-24 16:58:15 -0700 | [diff] [blame] | 890 | extern void efi_find_mirror(void); |
Josh Triplett | 7851079 | 2012-09-28 17:55:44 -0700 | [diff] [blame] | 891 | #else |
Josh Triplett | 2223af3 | 2012-09-28 17:57:05 -0700 | [diff] [blame] | 892 | static inline void efi_late_init(void) {} |
Josh Triplett | 7851079 | 2012-09-28 17:55:44 -0700 | [diff] [blame] | 893 | static inline void efi_free_boot_services(void) {} |
Matt Fleming | a6e4d5a | 2013-03-25 09:14:30 +0000 | [diff] [blame] | 894 | |
Ard Biesheuvel | ca0e30d | 2016-02-01 22:06:58 +0000 | [diff] [blame] | 895 | static inline efi_status_t efi_query_variable_store(u32 attributes, |
| 896 | unsigned long size, |
| 897 | bool nonblocking) |
Matt Fleming | a6e4d5a | 2013-03-25 09:14:30 +0000 | [diff] [blame] | 898 | { |
| 899 | return EFI_SUCCESS; |
| 900 | } |
Josh Triplett | 7851079 | 2012-09-28 17:55:44 -0700 | [diff] [blame] | 901 | #endif |
Josh Triplett | 7bc90e0 | 2012-09-28 17:56:08 -0700 | [diff] [blame] | 902 | extern void __iomem *efi_lookup_mapped_addr(u64 phys_addr); |
Leif Lindholm | 272686b | 2013-09-05 11:34:54 +0100 | [diff] [blame] | 903 | extern int efi_config_init(efi_config_table_type_t *arch_tables); |
Peter Jones | 3846c15 | 2015-06-05 15:14:54 -0400 | [diff] [blame] | 904 | #ifdef CONFIG_EFI_ESRT |
Peter Jones | 0bb5490 | 2015-04-28 18:44:31 -0400 | [diff] [blame] | 905 | extern void __init efi_esrt_init(void); |
Peter Jones | 3846c15 | 2015-06-05 15:14:54 -0400 | [diff] [blame] | 906 | #else |
| 907 | static inline void efi_esrt_init(void) { } |
| 908 | #endif |
Ard Biesheuvel | 7bb6841 | 2014-10-18 15:04:15 +0200 | [diff] [blame] | 909 | extern int efi_config_parse_tables(void *config_tables, int count, int sz, |
| 910 | efi_config_table_type_t *arch_tables); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 911 | extern u64 efi_get_iobase (void); |
| 912 | extern u32 efi_mem_type (unsigned long phys_addr); |
| 913 | extern u64 efi_mem_attributes (unsigned long phys_addr); |
Bjorn Helgaas | 32e62c6 | 2006-05-05 17:19:50 -0600 | [diff] [blame] | 914 | extern u64 efi_mem_attribute (unsigned long phys_addr, unsigned long size); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 915 | extern int __init efi_uart_console_only (void); |
Peter Jones | 0bb5490 | 2015-04-28 18:44:31 -0400 | [diff] [blame] | 916 | extern u64 efi_mem_desc_end(efi_memory_desc_t *md); |
| 917 | extern int efi_mem_desc_lookup(u64 phys_addr, efi_memory_desc_t *out_md); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 918 | extern void efi_initialize_iomem_resources(struct resource *code_resource, |
Bernhard Walle | 00bf409 | 2007-10-21 16:42:01 -0700 | [diff] [blame] | 919 | struct resource *data_resource, struct resource *bss_resource); |
Matthew Garrett | 916f676 | 2011-05-25 09:53:13 -0400 | [diff] [blame] | 920 | extern void efi_reserve_boot_services(void); |
Leif Lindholm | 7968c0e | 2015-08-26 14:24:58 +0100 | [diff] [blame] | 921 | extern int efi_get_fdt_params(struct efi_fdt_params *params); |
Peter Jones | 0bb5490 | 2015-04-28 18:44:31 -0400 | [diff] [blame] | 922 | extern struct kobject *efi_kobj; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 923 | |
Matt Fleming | 44be28e | 2014-06-13 12:39:55 +0100 | [diff] [blame] | 924 | extern int efi_reboot_quirk_mode; |
Matt Fleming | 0c5ed61 | 2014-06-13 12:35:21 +0100 | [diff] [blame] | 925 | extern bool efi_poweroff_required(void); |
| 926 | |
Taku Izumi | 0f96a99 | 2015-09-30 23:01:56 +0900 | [diff] [blame] | 927 | #ifdef CONFIG_EFI_FAKE_MEMMAP |
| 928 | extern void __init efi_fake_memmap(void); |
| 929 | #else |
| 930 | static inline void efi_fake_memmap(void) { } |
| 931 | #endif |
| 932 | |
Ard Biesheuvel | 10f0d2f5 | 2016-04-25 21:06:45 +0100 | [diff] [blame] | 933 | /* |
| 934 | * efi_memattr_perm_setter - arch specific callback function passed into |
| 935 | * efi_memattr_apply_permissions() that updates the |
| 936 | * mapping permissions described by the second |
| 937 | * argument in the page tables referred to by the |
| 938 | * first argument. |
| 939 | */ |
| 940 | typedef int (*efi_memattr_perm_setter)(struct mm_struct *, efi_memory_desc_t *); |
| 941 | |
| 942 | extern int efi_memattr_init(void); |
| 943 | extern int efi_memattr_apply_permissions(struct mm_struct *mm, |
| 944 | efi_memattr_perm_setter fn); |
| 945 | |
Mark Salter | e885cd8 | 2014-01-10 14:26:06 -0500 | [diff] [blame] | 946 | /* Iterate through an efi_memory_map */ |
Matt Fleming | 78ce248 | 2016-04-25 21:06:38 +0100 | [diff] [blame] | 947 | #define for_each_efi_memory_desc_in_map(m, md) \ |
Mark Salter | e885cd8 | 2014-01-10 14:26:06 -0500 | [diff] [blame] | 948 | for ((md) = (m)->map; \ |
Vitaly Kuznetsov | 55f1ea1 | 2016-05-31 11:23:43 +0100 | [diff] [blame] | 949 | ((void *)(md) + (m)->desc_size) <= (m)->map_end; \ |
Mark Salter | e885cd8 | 2014-01-10 14:26:06 -0500 | [diff] [blame] | 950 | (md) = (void *)(md) + (m)->desc_size) |
| 951 | |
Matt Fleming | 78ce248 | 2016-04-25 21:06:38 +0100 | [diff] [blame] | 952 | /** |
| 953 | * for_each_efi_memory_desc - iterate over descriptors in efi.memmap |
| 954 | * @md: the efi_memory_desc_t * iterator |
| 955 | * |
| 956 | * Once the loop finishes @md must not be accessed. |
| 957 | */ |
| 958 | #define for_each_efi_memory_desc(md) \ |
Matt Fleming | 884f4f6 | 2016-04-25 21:06:39 +0100 | [diff] [blame] | 959 | for_each_efi_memory_desc_in_map(&efi.memmap, md) |
Matt Fleming | 78ce248 | 2016-04-25 21:06:38 +0100 | [diff] [blame] | 960 | |
Laszlo Ersek | 98d2a6c | 2014-09-03 13:32:20 +0200 | [diff] [blame] | 961 | /* |
| 962 | * Format an EFI memory descriptor's type and attributes to a user-provided |
| 963 | * character buffer, as per snprintf(), and return the buffer. |
| 964 | */ |
| 965 | char * __init efi_md_typeattr_format(char *buf, size_t size, |
| 966 | const efi_memory_desc_t *md); |
| 967 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 968 | /** |
| 969 | * efi_range_is_wc - check the WC bit on an address range |
| 970 | * @start: starting kvirt address |
| 971 | * @len: length of range |
| 972 | * |
| 973 | * Consult the EFI memory map and make sure it's ok to set this range WC. |
| 974 | * Returns true or false. |
| 975 | */ |
| 976 | static inline int efi_range_is_wc(unsigned long start, unsigned long len) |
| 977 | { |
Jesper Juhl | 986a80d | 2005-06-16 15:14:00 -0700 | [diff] [blame] | 978 | unsigned long i; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 979 | |
| 980 | for (i = 0; i < len; i += (1UL << EFI_PAGE_SHIFT)) { |
| 981 | unsigned long paddr = __pa(start + i); |
| 982 | if (!(efi_mem_attributes(paddr) & EFI_MEMORY_WC)) |
| 983 | return 0; |
| 984 | } |
| 985 | /* The range checked out */ |
| 986 | return 1; |
| 987 | } |
| 988 | |
| 989 | #ifdef CONFIG_EFI_PCDP |
| 990 | extern int __init efi_setup_pcdp_console(char *); |
| 991 | #endif |
| 992 | |
| 993 | /* |
Matt Fleming | 83e6818 | 2012-11-14 09:42:35 +0000 | [diff] [blame] | 994 | * We play games with efi_enabled so that the compiler will, if |
| 995 | * possible, remove EFI-related code altogether. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 996 | */ |
Matt Fleming | 83e6818 | 2012-11-14 09:42:35 +0000 | [diff] [blame] | 997 | #define EFI_BOOT 0 /* Were we booted from EFI? */ |
Matt Fleming | 83e6818 | 2012-11-14 09:42:35 +0000 | [diff] [blame] | 998 | #define EFI_CONFIG_TABLES 2 /* Can we use EFI config tables? */ |
| 999 | #define EFI_RUNTIME_SERVICES 3 /* Can we use runtime services? */ |
| 1000 | #define EFI_MEMMAP 4 /* Can we use EFI memory map? */ |
| 1001 | #define EFI_64BIT 5 /* Is the firmware 64-bit? */ |
Daniel Kiper | 9f27bc5 | 2014-06-30 19:52:58 +0200 | [diff] [blame] | 1002 | #define EFI_PARAVIRT 6 /* Access is via a paravirt interface */ |
| 1003 | #define EFI_ARCH_1 7 /* First arch-specific bit */ |
Borislav Petkov | fed6cef | 2015-02-05 11:44:41 +0100 | [diff] [blame] | 1004 | #define EFI_DBG 8 /* Print additional debug info at runtime */ |
Ard Biesheuvel | a104171 | 2015-09-23 07:29:34 -0700 | [diff] [blame] | 1005 | #define EFI_NX_PE_DATA 9 /* Can runtime data regions be mapped non-executable? */ |
Matt Fleming | 83e6818 | 2012-11-14 09:42:35 +0000 | [diff] [blame] | 1006 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1007 | #ifdef CONFIG_EFI |
Matt Fleming | 3e90959 | 2014-01-15 13:21:22 +0000 | [diff] [blame] | 1008 | /* |
| 1009 | * Test whether the above EFI_* bits are enabled. |
| 1010 | */ |
| 1011 | static inline bool efi_enabled(int feature) |
Matt Fleming | 83e6818 | 2012-11-14 09:42:35 +0000 | [diff] [blame] | 1012 | { |
Matt Fleming | 3e90959 | 2014-01-15 13:21:22 +0000 | [diff] [blame] | 1013 | return test_bit(feature, &efi.flags) != 0; |
| 1014 | } |
Matt Fleming | 8562c99c | 2014-06-13 12:22:22 +0100 | [diff] [blame] | 1015 | extern void efi_reboot(enum reboot_mode reboot_mode, const char *__unused); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1016 | #else |
Matt Fleming | 3e90959 | 2014-01-15 13:21:22 +0000 | [diff] [blame] | 1017 | static inline bool efi_enabled(int feature) |
Matt Fleming | 83e6818 | 2012-11-14 09:42:35 +0000 | [diff] [blame] | 1018 | { |
Matt Fleming | 3e90959 | 2014-01-15 13:21:22 +0000 | [diff] [blame] | 1019 | return false; |
Matt Fleming | 83e6818 | 2012-11-14 09:42:35 +0000 | [diff] [blame] | 1020 | } |
Matt Fleming | 8562c99c | 2014-06-13 12:22:22 +0100 | [diff] [blame] | 1021 | static inline void |
| 1022 | efi_reboot(enum reboot_mode reboot_mode, const char *__unused) {} |
Matt Fleming | 87615a3 | 2016-04-25 21:07:00 +0100 | [diff] [blame] | 1023 | |
| 1024 | static inline bool |
| 1025 | efi_capsule_pending(int *reset_type) |
| 1026 | { |
| 1027 | return false; |
| 1028 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1029 | #endif |
| 1030 | |
Matt Fleming | 806b035 | 2016-04-25 21:06:58 +0100 | [diff] [blame] | 1031 | extern int efi_status_to_err(efi_status_t status); |
| 1032 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1033 | /* |
| 1034 | * Variable Attributes |
| 1035 | */ |
| 1036 | #define EFI_VARIABLE_NON_VOLATILE 0x0000000000000001 |
| 1037 | #define EFI_VARIABLE_BOOTSERVICE_ACCESS 0x0000000000000002 |
| 1038 | #define EFI_VARIABLE_RUNTIME_ACCESS 0x0000000000000004 |
Matthew Garrett | 41b3254 | 2012-04-30 16:11:29 -0400 | [diff] [blame] | 1039 | #define EFI_VARIABLE_HARDWARE_ERROR_RECORD 0x0000000000000008 |
| 1040 | #define EFI_VARIABLE_AUTHENTICATED_WRITE_ACCESS 0x0000000000000010 |
| 1041 | #define EFI_VARIABLE_TIME_BASED_AUTHENTICATED_WRITE_ACCESS 0x0000000000000020 |
| 1042 | #define EFI_VARIABLE_APPEND_WRITE 0x0000000000000040 |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1043 | |
Matthew Garrett | 41b3254 | 2012-04-30 16:11:29 -0400 | [diff] [blame] | 1044 | #define EFI_VARIABLE_MASK (EFI_VARIABLE_NON_VOLATILE | \ |
| 1045 | EFI_VARIABLE_BOOTSERVICE_ACCESS | \ |
| 1046 | EFI_VARIABLE_RUNTIME_ACCESS | \ |
| 1047 | EFI_VARIABLE_HARDWARE_ERROR_RECORD | \ |
| 1048 | EFI_VARIABLE_AUTHENTICATED_WRITE_ACCESS | \ |
| 1049 | EFI_VARIABLE_TIME_BASED_AUTHENTICATED_WRITE_ACCESS | \ |
| 1050 | EFI_VARIABLE_APPEND_WRITE) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1051 | /* |
Matt Fleming | e14ab23 | 2013-02-03 20:16:40 +0000 | [diff] [blame] | 1052 | * Length of a GUID string (strlen("aaaaaaaa-bbbb-cccc-dddd-eeeeeeeeeeee")) |
| 1053 | * not including trailing NUL |
| 1054 | */ |
Andy Shevchenko | ba7e34b | 2016-05-20 17:01:18 -0700 | [diff] [blame] | 1055 | #define EFI_VARIABLE_GUID_LEN UUID_STRING_LEN |
Matt Fleming | e14ab23 | 2013-02-03 20:16:40 +0000 | [diff] [blame] | 1056 | |
| 1057 | /* |
Matt Fleming | e2527a7 | 2011-11-15 12:57:26 +0000 | [diff] [blame] | 1058 | * The type of search to perform when calling boottime->locate_handle |
| 1059 | */ |
| 1060 | #define EFI_LOCATE_ALL_HANDLES 0 |
| 1061 | #define EFI_LOCATE_BY_REGISTER_NOTIFY 1 |
| 1062 | #define EFI_LOCATE_BY_PROTOCOL 2 |
| 1063 | |
| 1064 | /* |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1065 | * EFI Device Path information |
| 1066 | */ |
| 1067 | #define EFI_DEV_HW 0x01 |
| 1068 | #define EFI_DEV_PCI 1 |
| 1069 | #define EFI_DEV_PCCARD 2 |
| 1070 | #define EFI_DEV_MEM_MAPPED 3 |
| 1071 | #define EFI_DEV_VENDOR 4 |
| 1072 | #define EFI_DEV_CONTROLLER 5 |
| 1073 | #define EFI_DEV_ACPI 0x02 |
| 1074 | #define EFI_DEV_BASIC_ACPI 1 |
| 1075 | #define EFI_DEV_EXPANDED_ACPI 2 |
| 1076 | #define EFI_DEV_MSG 0x03 |
| 1077 | #define EFI_DEV_MSG_ATAPI 1 |
| 1078 | #define EFI_DEV_MSG_SCSI 2 |
| 1079 | #define EFI_DEV_MSG_FC 3 |
| 1080 | #define EFI_DEV_MSG_1394 4 |
| 1081 | #define EFI_DEV_MSG_USB 5 |
| 1082 | #define EFI_DEV_MSG_USB_CLASS 15 |
| 1083 | #define EFI_DEV_MSG_I20 6 |
| 1084 | #define EFI_DEV_MSG_MAC 11 |
| 1085 | #define EFI_DEV_MSG_IPV4 12 |
| 1086 | #define EFI_DEV_MSG_IPV6 13 |
| 1087 | #define EFI_DEV_MSG_INFINIBAND 9 |
| 1088 | #define EFI_DEV_MSG_UART 14 |
| 1089 | #define EFI_DEV_MSG_VENDOR 10 |
| 1090 | #define EFI_DEV_MEDIA 0x04 |
| 1091 | #define EFI_DEV_MEDIA_HARD_DRIVE 1 |
| 1092 | #define EFI_DEV_MEDIA_CDROM 2 |
| 1093 | #define EFI_DEV_MEDIA_VENDOR 3 |
| 1094 | #define EFI_DEV_MEDIA_FILE 4 |
| 1095 | #define EFI_DEV_MEDIA_PROTOCOL 5 |
| 1096 | #define EFI_DEV_BIOS_BOOT 0x05 |
| 1097 | #define EFI_DEV_END_PATH 0x7F |
| 1098 | #define EFI_DEV_END_PATH2 0xFF |
| 1099 | #define EFI_DEV_END_INSTANCE 0x01 |
| 1100 | #define EFI_DEV_END_ENTIRE 0xFF |
| 1101 | |
| 1102 | struct efi_generic_dev_path { |
| 1103 | u8 type; |
| 1104 | u8 sub_type; |
| 1105 | u16 length; |
| 1106 | } __attribute ((packed)); |
| 1107 | |
Huang, Ying | 4a3575f | 2008-02-25 15:18:37 +0800 | [diff] [blame] | 1108 | static inline void memrange_efi_to_native(u64 *addr, u64 *npages) |
| 1109 | { |
| 1110 | *npages = PFN_UP(*addr + (*npages<<EFI_PAGE_SHIFT)) - PFN_DOWN(*addr); |
| 1111 | *addr &= PAGE_MASK; |
| 1112 | } |
| 1113 | |
Matt Fleming | 0485177 | 2013-02-08 15:48:51 +0000 | [diff] [blame] | 1114 | /* |
Mike Waychison | 4fc756bd | 2011-03-11 17:43:27 -0800 | [diff] [blame] | 1115 | * EFI Variable support. |
| 1116 | * |
| 1117 | * Different firmware drivers can expose their EFI-like variables using |
| 1118 | * the following. |
| 1119 | */ |
| 1120 | |
| 1121 | struct efivar_operations { |
| 1122 | efi_get_variable_t *get_variable; |
| 1123 | efi_get_next_variable_t *get_next_variable; |
| 1124 | efi_set_variable_t *set_variable; |
Ard Biesheuvel | 70d2a3c | 2016-02-01 22:06:56 +0000 | [diff] [blame] | 1125 | efi_set_variable_t *set_variable_nonblocking; |
Matt Fleming | a6e4d5a | 2013-03-25 09:14:30 +0000 | [diff] [blame] | 1126 | efi_query_variable_store_t *query_variable_store; |
Mike Waychison | 4fc756bd | 2011-03-11 17:43:27 -0800 | [diff] [blame] | 1127 | }; |
| 1128 | |
| 1129 | struct efivars { |
| 1130 | /* |
| 1131 | * ->lock protects two things: |
Matt Fleming | 82f990a | 2014-07-08 12:28:33 +0100 | [diff] [blame] | 1132 | * 1) efivarfs_list and efivars_sysfs_list |
| 1133 | * 2) ->ops calls |
Mike Waychison | 4fc756bd | 2011-03-11 17:43:27 -0800 | [diff] [blame] | 1134 | */ |
| 1135 | spinlock_t lock; |
Mike Waychison | 4fc756bd | 2011-03-11 17:43:27 -0800 | [diff] [blame] | 1136 | struct kset *kset; |
Lee, Chun-Yi | 605e70c | 2012-10-05 13:54:56 +0800 | [diff] [blame] | 1137 | struct kobject *kobject; |
Mike Waychison | 4fc756bd | 2011-03-11 17:43:27 -0800 | [diff] [blame] | 1138 | const struct efivar_operations *ops; |
| 1139 | }; |
| 1140 | |
Matt Fleming | e14ab23 | 2013-02-03 20:16:40 +0000 | [diff] [blame] | 1141 | /* |
| 1142 | * The maximum size of VariableName + Data = 1024 |
| 1143 | * Therefore, it's reasonable to save that much |
| 1144 | * space in each part of the structure, |
| 1145 | * and we use a page for reading/writing. |
| 1146 | */ |
| 1147 | |
Matt Fleming | a5d92ad | 2014-03-17 10:57:00 +0000 | [diff] [blame] | 1148 | #define EFI_VAR_NAME_LEN 1024 |
| 1149 | |
Matt Fleming | e14ab23 | 2013-02-03 20:16:40 +0000 | [diff] [blame] | 1150 | struct efi_variable { |
Matt Fleming | a5d92ad | 2014-03-17 10:57:00 +0000 | [diff] [blame] | 1151 | efi_char16_t VariableName[EFI_VAR_NAME_LEN/sizeof(efi_char16_t)]; |
Matt Fleming | e14ab23 | 2013-02-03 20:16:40 +0000 | [diff] [blame] | 1152 | efi_guid_t VendorGuid; |
| 1153 | unsigned long DataSize; |
| 1154 | __u8 Data[1024]; |
| 1155 | efi_status_t Status; |
| 1156 | __u32 Attributes; |
| 1157 | } __attribute__((packed)); |
| 1158 | |
| 1159 | struct efivar_entry { |
| 1160 | struct efi_variable var; |
| 1161 | struct list_head list; |
| 1162 | struct kobject kobj; |
Seiji Aguchi | e0d5973 | 2013-10-30 15:27:26 -0400 | [diff] [blame] | 1163 | bool scanning; |
| 1164 | bool deleting; |
Matt Fleming | e14ab23 | 2013-02-03 20:16:40 +0000 | [diff] [blame] | 1165 | }; |
| 1166 | |
Matt Fleming | 677703c | 2014-01-10 13:47:37 +0000 | [diff] [blame] | 1167 | struct efi_simple_text_output_protocol_32 { |
| 1168 | u32 reset; |
| 1169 | u32 output_string; |
| 1170 | u32 test_string; |
| 1171 | }; |
| 1172 | |
| 1173 | struct efi_simple_text_output_protocol_64 { |
| 1174 | u64 reset; |
| 1175 | u64 output_string; |
| 1176 | u64 test_string; |
| 1177 | }; |
Roy Franz | ed37ddf | 2013-09-22 15:45:26 -0700 | [diff] [blame] | 1178 | |
| 1179 | struct efi_simple_text_output_protocol { |
| 1180 | void *reset; |
| 1181 | efi_status_t (*output_string)(void *, void *); |
| 1182 | void *test_string; |
| 1183 | }; |
| 1184 | |
Ard Biesheuvel | fc37206 | 2016-04-25 21:06:49 +0100 | [diff] [blame] | 1185 | #define PIXEL_RGB_RESERVED_8BIT_PER_COLOR 0 |
| 1186 | #define PIXEL_BGR_RESERVED_8BIT_PER_COLOR 1 |
| 1187 | #define PIXEL_BIT_MASK 2 |
| 1188 | #define PIXEL_BLT_ONLY 3 |
| 1189 | #define PIXEL_FORMAT_MAX 4 |
| 1190 | |
| 1191 | struct efi_pixel_bitmask { |
| 1192 | u32 red_mask; |
| 1193 | u32 green_mask; |
| 1194 | u32 blue_mask; |
| 1195 | u32 reserved_mask; |
| 1196 | }; |
| 1197 | |
| 1198 | struct efi_graphics_output_mode_info { |
| 1199 | u32 version; |
| 1200 | u32 horizontal_resolution; |
| 1201 | u32 vertical_resolution; |
| 1202 | int pixel_format; |
| 1203 | struct efi_pixel_bitmask pixel_information; |
| 1204 | u32 pixels_per_scan_line; |
| 1205 | } __packed; |
| 1206 | |
| 1207 | struct efi_graphics_output_protocol_mode_32 { |
| 1208 | u32 max_mode; |
| 1209 | u32 mode; |
| 1210 | u32 info; |
| 1211 | u32 size_of_info; |
| 1212 | u64 frame_buffer_base; |
| 1213 | u32 frame_buffer_size; |
| 1214 | } __packed; |
| 1215 | |
| 1216 | struct efi_graphics_output_protocol_mode_64 { |
| 1217 | u32 max_mode; |
| 1218 | u32 mode; |
| 1219 | u64 info; |
| 1220 | u64 size_of_info; |
| 1221 | u64 frame_buffer_base; |
| 1222 | u64 frame_buffer_size; |
| 1223 | } __packed; |
| 1224 | |
| 1225 | struct efi_graphics_output_protocol_mode { |
| 1226 | u32 max_mode; |
| 1227 | u32 mode; |
| 1228 | unsigned long info; |
| 1229 | unsigned long size_of_info; |
| 1230 | u64 frame_buffer_base; |
| 1231 | unsigned long frame_buffer_size; |
| 1232 | } __packed; |
| 1233 | |
| 1234 | struct efi_graphics_output_protocol_32 { |
| 1235 | u32 query_mode; |
| 1236 | u32 set_mode; |
| 1237 | u32 blt; |
| 1238 | u32 mode; |
| 1239 | }; |
| 1240 | |
| 1241 | struct efi_graphics_output_protocol_64 { |
| 1242 | u64 query_mode; |
| 1243 | u64 set_mode; |
| 1244 | u64 blt; |
| 1245 | u64 mode; |
| 1246 | }; |
| 1247 | |
| 1248 | struct efi_graphics_output_protocol { |
| 1249 | unsigned long query_mode; |
| 1250 | unsigned long set_mode; |
| 1251 | unsigned long blt; |
| 1252 | struct efi_graphics_output_protocol_mode *mode; |
| 1253 | }; |
| 1254 | |
| 1255 | typedef efi_status_t (*efi_graphics_output_protocol_query_mode)( |
| 1256 | struct efi_graphics_output_protocol *, u32, unsigned long *, |
| 1257 | struct efi_graphics_output_mode_info **); |
| 1258 | |
Matt Fleming | 0485177 | 2013-02-08 15:48:51 +0000 | [diff] [blame] | 1259 | extern struct list_head efivar_sysfs_list; |
| 1260 | |
| 1261 | static inline void |
| 1262 | efivar_unregister(struct efivar_entry *var) |
| 1263 | { |
| 1264 | kobject_put(&var->kobj); |
| 1265 | } |
| 1266 | |
Matt Fleming | e14ab23 | 2013-02-03 20:16:40 +0000 | [diff] [blame] | 1267 | int efivars_register(struct efivars *efivars, |
Mike Waychison | 4fc756bd | 2011-03-11 17:43:27 -0800 | [diff] [blame] | 1268 | const struct efivar_operations *ops, |
Matt Fleming | e14ab23 | 2013-02-03 20:16:40 +0000 | [diff] [blame] | 1269 | struct kobject *kobject); |
| 1270 | int efivars_unregister(struct efivars *efivars); |
| 1271 | struct kobject *efivars_kobject(void); |
| 1272 | |
| 1273 | int efivar_init(int (*func)(efi_char16_t *, efi_guid_t, unsigned long, void *), |
Julia Lawall | 1cfd631 | 2016-05-06 22:39:30 +0100 | [diff] [blame] | 1274 | void *data, bool duplicates, struct list_head *head); |
Matt Fleming | e14ab23 | 2013-02-03 20:16:40 +0000 | [diff] [blame] | 1275 | |
| 1276 | void efivar_entry_add(struct efivar_entry *entry, struct list_head *head); |
| 1277 | void efivar_entry_remove(struct efivar_entry *entry); |
| 1278 | |
| 1279 | int __efivar_entry_delete(struct efivar_entry *entry); |
| 1280 | int efivar_entry_delete(struct efivar_entry *entry); |
| 1281 | |
Matt Fleming | e14ab23 | 2013-02-03 20:16:40 +0000 | [diff] [blame] | 1282 | int efivar_entry_size(struct efivar_entry *entry, unsigned long *size); |
Matt Fleming | 8a415b8 | 2013-04-29 20:08:02 +0100 | [diff] [blame] | 1283 | int __efivar_entry_get(struct efivar_entry *entry, u32 *attributes, |
| 1284 | unsigned long *size, void *data); |
Matt Fleming | e14ab23 | 2013-02-03 20:16:40 +0000 | [diff] [blame] | 1285 | int efivar_entry_get(struct efivar_entry *entry, u32 *attributes, |
| 1286 | unsigned long *size, void *data); |
| 1287 | int efivar_entry_set(struct efivar_entry *entry, u32 attributes, |
| 1288 | unsigned long size, void *data, struct list_head *head); |
| 1289 | int efivar_entry_set_get_size(struct efivar_entry *entry, u32 attributes, |
| 1290 | unsigned long *size, void *data, bool *set); |
| 1291 | int efivar_entry_set_safe(efi_char16_t *name, efi_guid_t vendor, u32 attributes, |
| 1292 | bool block, unsigned long size, void *data); |
| 1293 | |
| 1294 | void efivar_entry_iter_begin(void); |
| 1295 | void efivar_entry_iter_end(void); |
| 1296 | |
| 1297 | int __efivar_entry_iter(int (*func)(struct efivar_entry *, void *), |
| 1298 | struct list_head *head, void *data, |
| 1299 | struct efivar_entry **prev); |
| 1300 | int efivar_entry_iter(int (*func)(struct efivar_entry *, void *), |
| 1301 | struct list_head *head, void *data); |
| 1302 | |
| 1303 | struct efivar_entry *efivar_entry_find(efi_char16_t *name, efi_guid_t guid, |
| 1304 | struct list_head *head, bool remove); |
| 1305 | |
Peter Jones | 8282f5d | 2016-02-08 14:48:14 -0500 | [diff] [blame] | 1306 | bool efivar_validate(efi_guid_t vendor, efi_char16_t *var_name, u8 *data, |
| 1307 | unsigned long data_size); |
Peter Jones | ed8b0de | 2016-02-08 14:48:15 -0500 | [diff] [blame] | 1308 | bool efivar_variable_is_removable(efi_guid_t vendor, const char *name, |
| 1309 | size_t len); |
Matt Fleming | e14ab23 | 2013-02-03 20:16:40 +0000 | [diff] [blame] | 1310 | |
Tom Gundersen | a9499fa | 2013-02-08 15:37:06 +0000 | [diff] [blame] | 1311 | extern struct work_struct efivar_work; |
Matt Fleming | 0485177 | 2013-02-08 15:48:51 +0000 | [diff] [blame] | 1312 | void efivar_run_worker(void); |
| 1313 | |
Tom Gundersen | a9499fa | 2013-02-08 15:37:06 +0000 | [diff] [blame] | 1314 | #if defined(CONFIG_EFI_VARS) || defined(CONFIG_EFI_VARS_MODULE) |
Matt Fleming | e14ab23 | 2013-02-03 20:16:40 +0000 | [diff] [blame] | 1315 | int efivars_sysfs_init(void); |
Mike Waychison | 4fc756bd | 2011-03-11 17:43:27 -0800 | [diff] [blame] | 1316 | |
Seiji Aguchi | e0d5973 | 2013-10-30 15:27:26 -0400 | [diff] [blame] | 1317 | #define EFIVARS_DATA_SIZE_MAX 1024 |
| 1318 | |
Mike Waychison | 4fc756bd | 2011-03-11 17:43:27 -0800 | [diff] [blame] | 1319 | #endif /* CONFIG_EFI_VARS */ |
Matt Fleming | f0133f3 | 2016-04-25 21:06:59 +0100 | [diff] [blame] | 1320 | extern bool efi_capsule_pending(int *reset_type); |
| 1321 | |
| 1322 | extern int efi_capsule_supported(efi_guid_t guid, u32 flags, |
| 1323 | size_t size, int *reset); |
| 1324 | |
| 1325 | extern int efi_capsule_update(efi_capsule_header_t *capsule, |
| 1326 | struct page **pages); |
Mike Waychison | 4fc756bd | 2011-03-11 17:43:27 -0800 | [diff] [blame] | 1327 | |
Dave Young | 926172d | 2013-12-20 18:02:18 +0800 | [diff] [blame] | 1328 | #ifdef CONFIG_EFI_RUNTIME_MAP |
| 1329 | int efi_runtime_map_init(struct kobject *); |
| 1330 | void efi_runtime_map_setup(void *, int, u32); |
Vivek Goyal | 6a2c20e | 2014-08-08 14:26:11 -0700 | [diff] [blame] | 1331 | int efi_get_runtime_map_size(void); |
| 1332 | int efi_get_runtime_map_desc_size(void); |
| 1333 | int efi_runtime_map_copy(void *buf, size_t bufsz); |
Dave Young | 926172d | 2013-12-20 18:02:18 +0800 | [diff] [blame] | 1334 | #else |
| 1335 | static inline int efi_runtime_map_init(struct kobject *kobj) |
| 1336 | { |
| 1337 | return 0; |
| 1338 | } |
| 1339 | |
| 1340 | static inline void |
| 1341 | efi_runtime_map_setup(void *map, int nr_entries, u32 desc_size) {} |
Vivek Goyal | 6a2c20e | 2014-08-08 14:26:11 -0700 | [diff] [blame] | 1342 | |
| 1343 | static inline int efi_get_runtime_map_size(void) |
| 1344 | { |
| 1345 | return 0; |
| 1346 | } |
| 1347 | |
| 1348 | static inline int efi_get_runtime_map_desc_size(void) |
| 1349 | { |
| 1350 | return 0; |
| 1351 | } |
| 1352 | |
| 1353 | static inline int efi_runtime_map_copy(void *buf, size_t bufsz) |
| 1354 | { |
| 1355 | return 0; |
| 1356 | } |
| 1357 | |
Dave Young | 926172d | 2013-12-20 18:02:18 +0800 | [diff] [blame] | 1358 | #endif |
| 1359 | |
Ard Biesheuvel | bd66947 | 2014-07-02 14:54:42 +0200 | [diff] [blame] | 1360 | /* prototypes shared between arch specific and generic stub code */ |
| 1361 | |
| 1362 | #define pr_efi(sys_table, msg) efi_printk(sys_table, "EFI stub: "msg) |
| 1363 | #define pr_efi_err(sys_table, msg) efi_printk(sys_table, "EFI stub: ERROR: "msg) |
| 1364 | |
| 1365 | void efi_printk(efi_system_table_t *sys_table_arg, char *str); |
| 1366 | |
| 1367 | void efi_free(efi_system_table_t *sys_table_arg, unsigned long size, |
| 1368 | unsigned long addr); |
| 1369 | |
| 1370 | char *efi_convert_cmdline(efi_system_table_t *sys_table_arg, |
| 1371 | efi_loaded_image_t *image, int *cmd_line_len); |
| 1372 | |
| 1373 | efi_status_t efi_get_memory_map(efi_system_table_t *sys_table_arg, |
| 1374 | efi_memory_desc_t **map, |
| 1375 | unsigned long *map_size, |
| 1376 | unsigned long *desc_size, |
| 1377 | u32 *desc_ver, |
| 1378 | unsigned long *key_ptr); |
| 1379 | |
| 1380 | efi_status_t efi_low_alloc(efi_system_table_t *sys_table_arg, |
| 1381 | unsigned long size, unsigned long align, |
| 1382 | unsigned long *addr); |
| 1383 | |
| 1384 | efi_status_t efi_high_alloc(efi_system_table_t *sys_table_arg, |
| 1385 | unsigned long size, unsigned long align, |
| 1386 | unsigned long *addr, unsigned long max); |
| 1387 | |
| 1388 | efi_status_t efi_relocate_kernel(efi_system_table_t *sys_table_arg, |
| 1389 | unsigned long *image_addr, |
| 1390 | unsigned long image_size, |
| 1391 | unsigned long alloc_size, |
| 1392 | unsigned long preferred_addr, |
| 1393 | unsigned long alignment); |
| 1394 | |
| 1395 | efi_status_t handle_cmdline_files(efi_system_table_t *sys_table_arg, |
| 1396 | efi_loaded_image_t *image, |
| 1397 | char *cmd_line, char *option_string, |
| 1398 | unsigned long max_addr, |
| 1399 | unsigned long *load_addr, |
| 1400 | unsigned long *load_size); |
| 1401 | |
Matt Fleming | 5a17dae | 2014-08-05 11:52:11 +0100 | [diff] [blame] | 1402 | efi_status_t efi_parse_options(char *cmdline); |
| 1403 | |
Ard Biesheuvel | 2c23b73 | 2016-04-25 21:06:48 +0100 | [diff] [blame] | 1404 | efi_status_t efi_setup_gop(efi_system_table_t *sys_table_arg, |
| 1405 | struct screen_info *si, efi_guid_t *proto, |
| 1406 | unsigned long size); |
| 1407 | |
Dave Young | b2e0a54 | 2014-08-14 17:15:26 +0800 | [diff] [blame] | 1408 | bool efi_runtime_disabled(void); |
Alex Thorlton | 80e7559 | 2016-06-25 08:20:27 +0100 | [diff] [blame] | 1409 | extern void efi_call_virt_check_flags(unsigned long flags, const char *call); |
| 1410 | |
| 1411 | /* |
| 1412 | * Arch code can implement the following three template macros, avoiding |
| 1413 | * reptition for the void/non-void return cases of {__,}efi_call_virt(): |
| 1414 | * |
| 1415 | * * arch_efi_call_virt_setup() |
| 1416 | * |
| 1417 | * Sets up the environment for the call (e.g. switching page tables, |
| 1418 | * allowing kernel-mode use of floating point, if required). |
| 1419 | * |
| 1420 | * * arch_efi_call_virt() |
| 1421 | * |
| 1422 | * Performs the call. The last expression in the macro must be the call |
| 1423 | * itself, allowing the logic to be shared by the void and non-void |
| 1424 | * cases. |
| 1425 | * |
| 1426 | * * arch_efi_call_virt_teardown() |
| 1427 | * |
| 1428 | * Restores the usual kernel environment once the call has returned. |
| 1429 | */ |
| 1430 | |
| 1431 | #define efi_call_virt_pointer(p, f, args...) \ |
| 1432 | ({ \ |
| 1433 | efi_status_t __s; \ |
| 1434 | unsigned long __flags; \ |
| 1435 | \ |
| 1436 | arch_efi_call_virt_setup(); \ |
| 1437 | \ |
| 1438 | local_save_flags(__flags); \ |
| 1439 | __s = arch_efi_call_virt(p, f, args); \ |
| 1440 | efi_call_virt_check_flags(__flags, __stringify(f)); \ |
| 1441 | \ |
| 1442 | arch_efi_call_virt_teardown(); \ |
| 1443 | \ |
| 1444 | __s; \ |
| 1445 | }) |
| 1446 | |
| 1447 | #define __efi_call_virt_pointer(p, f, args...) \ |
| 1448 | ({ \ |
| 1449 | unsigned long __flags; \ |
| 1450 | \ |
| 1451 | arch_efi_call_virt_setup(); \ |
| 1452 | \ |
| 1453 | local_save_flags(__flags); \ |
| 1454 | arch_efi_call_virt(p, f, args); \ |
| 1455 | efi_call_virt_check_flags(__flags, __stringify(f)); \ |
| 1456 | \ |
| 1457 | arch_efi_call_virt_teardown(); \ |
| 1458 | }) |
| 1459 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1460 | #endif /* _LINUX_EFI_H */ |