MdePkg/Include/Library/PeiServicesLib.h

   1 /** @file
   2   Provides library functions for all PEI Services.
   3
   4 Copyright (c) 2006 - 2019, Intel Corporation. All rights reserved.<BR>
   5 SPDX-License-Identifier: BSD-2-Clause-Patent
   6
   7 **/
   8
   9 #ifndef __PEI_SERVICES_LIB_H__
  10 #define __PEI_SERVICES_LIB_H__
  11
  12 /**
  13   This service enables a given PEIM to register an interface into the PEI Foundation.
  14
  15   @param  PpiList               A pointer to the list of interfaces that the caller shall install.
  16
  17   @retval EFI_SUCCESS           The interface was successfully installed.
  18   @retval EFI_INVALID_PARAMETER The PpiList pointer is NULL.
  19   @retval EFI_INVALID_PARAMETER Any of the PEI PPI descriptors in the list do not have the
  20                                 EFI_PEI_PPI_DESCRIPTOR_PPI bit set in the Flags field.
  21   @retval EFI_OUT_OF_RESOURCES  There is no additional space in the PPI database.
  22
  23 **/
  24 EFI_STATUS
  25 EFIAPI
  26 PeiServicesInstallPpi (
  27   IN CONST EFI_PEI_PPI_DESCRIPTOR     *PpiList
  28   );
  29
  30 /**
  31   This service enables PEIMs to replace an entry in the PPI database with an alternate entry.
  32
  33   @param  OldPpi                Pointer to the old PEI PPI Descriptors.
  34   @param  NewPpi                Pointer to the new PEI PPI Descriptors.
  35
  36   @retval EFI_SUCCESS           The interface was successfully installed.
  37   @retval EFI_INVALID_PARAMETER The OldPpi or NewPpi is NULL.
  38   @retval EFI_INVALID_PARAMETER Any of the PEI PPI descriptors in the list do not have the
  39                                 EFI_PEI_PPI_DESCRIPTOR_PPI bit set in the Flags field.
  40   @retval EFI_OUT_OF_RESOURCES  There is no additional space in the PPI database.
  41   @retval EFI_NOT_FOUND         The PPI for which the reinstallation was requested has not been
  42                                 installed.
  43
  44 **/
  45 EFI_STATUS
  46 EFIAPI
  47 PeiServicesReInstallPpi (
  48   IN CONST EFI_PEI_PPI_DESCRIPTOR     *OldPpi,
  49   IN CONST EFI_PEI_PPI_DESCRIPTOR     *NewPpi
  50   );
  51
  52 /**
  53   This service enables PEIMs to discover a given instance of an interface.
  54
  55   @param  Guid                  A pointer to the GUID whose corresponding interface needs to be
  56                                 found.
  57   @param  Instance              The N-th instance of the interface that is required.
  58   @param  PpiDescriptor         A pointer to instance of the EFI_PEI_PPI_DESCRIPTOR.
  59   @param  Ppi                   A pointer to the instance of the interface.
  60
  61   @retval EFI_SUCCESS           The interface was successfully returned.
  62   @retval EFI_NOT_FOUND         The PPI descriptor is not found in the database.
  63
  64 **/
  65 EFI_STATUS
  66 EFIAPI
  67 PeiServicesLocatePpi (
  68   IN CONST EFI_GUID                   *Guid,
  69   IN UINTN                      Instance,
  70   IN OUT EFI_PEI_PPI_DESCRIPTOR **PpiDescriptor, OPTIONAL
  71   IN OUT VOID                   **Ppi
  72   );
  73
  74 /**
  75   This service enables PEIMs to register a given service to be invoked when another service is
  76   installed or reinstalled.
  77
  78   @param  NotifyList            A pointer to the list of notification interfaces that the caller
  79                                 shall install.
  80
  81   @retval EFI_SUCCESS           The interface was successfully installed.
  82   @retval EFI_INVALID_PARAMETER The NotifyList pointer is NULL.
  83   @retval EFI_INVALID_PARAMETER Any of the PEI notify descriptors in the list do not have the
  84                                 EFI_PEI_PPI_DESCRIPTOR_NOTIFY_TYPES bit set in the Flags field.
  85   @retval EFI_OUT_OF_RESOURCES  There is no additional space in the PPI database.
  86
  87 **/
  88 EFI_STATUS
  89 EFIAPI
  90 PeiServicesNotifyPpi (
  91   IN CONST EFI_PEI_NOTIFY_DESCRIPTOR  *NotifyList
  92   );
  93
  94 /**
  95   This service enables PEIMs to ascertain the present value of the boot mode.
  96
  97   @param  BootMode              A pointer to contain the value of the boot mode.
  98
  99   @retval EFI_SUCCESS           The boot mode was returned successfully.
 100   @retval EFI_INVALID_PARAMETER BootMode is NULL.
 101
 102 **/
 103 EFI_STATUS
 104 EFIAPI
 105 PeiServicesGetBootMode (
 106   OUT EFI_BOOT_MODE          *BootMode
 107   );
 108
 109 /**
 110   This service enables PEIMs to update the boot mode variable.
 111
 112   @param  BootMode              The value of the boot mode to set.
 113
 114   @retval EFI_SUCCESS           The value was successfully updated
 115
 116 **/
 117 EFI_STATUS
 118 EFIAPI
 119 PeiServicesSetBootMode (
 120   IN EFI_BOOT_MODE              BootMode
 121   );
 122
 123 /**
 124   This service enables a PEIM to ascertain the address of the list of HOBs in memory.
 125
 126   @param  HobList               A pointer to the list of HOBs that the PEI Foundation will initialize.
 127
 128   @retval EFI_SUCCESS           The list was successfully returned.
 129   @retval EFI_NOT_AVAILABLE_YET The HOB list is not yet published.
 130
 131 **/
 132 EFI_STATUS
 133 EFIAPI
 134 PeiServicesGetHobList (
 135   OUT VOID                      **HobList
 136   );
 137
 138 /**
 139   This service enables PEIMs to create various types of HOBs.
 140
 141   @param  Type                  The type of HOB to be installed.
 142   @param  Length                The length of the HOB to be added.
 143   @param  Hob                   The address of a pointer that will contain the HOB header.
 144
 145   @retval EFI_SUCCESS           The HOB was successfully created.
 146   @retval EFI_OUT_OF_RESOURCES  There is no additional space for HOB creation.
 147
 148 **/
 149 EFI_STATUS
 150 EFIAPI
 151 PeiServicesCreateHob (
 152   IN UINT16                     Type,
 153   IN UINT16                     Length,
 154   OUT VOID                      **Hob
 155   );
 156
 157 /**
 158   This service enables PEIMs to discover additional firmware volumes.
 159
 160   @param  Instance              This instance of the firmware volume to find.  The value 0 is the
 161                                 Boot Firmware Volume (BFV).
 162   @param  VolumeHandle          Handle of the firmware volume header of the volume to return.
 163
 164   @retval EFI_SUCCESS           The volume was found.
 165   @retval EFI_NOT_FOUND         The volume was not found.
 166   @retval EFI_INVALID_PARAMETER FwVolHeader is NULL.
 167
 168 **/
 169 EFI_STATUS
 170 EFIAPI
 171 PeiServicesFfsFindNextVolume (
 172   IN UINTN                          Instance,
 173   IN OUT EFI_PEI_FV_HANDLE          *VolumeHandle
 174   );
 175
 176 /**
 177   This service enables PEIMs to discover additional firmware files.
 178
 179   @param  SearchType            A filter to find files only of this type.
 180   @param  VolumeHandle          Pointer to the firmware volume header of the volume to search.
 181                                 This parameter must point to a valid FFS volume.
 182   @param  FileHandle            Handle of the current file from which to begin searching.
 183
 184   @retval EFI_SUCCESS           The file was found.
 185   @retval EFI_NOT_FOUND         The file was not found.
 186   @retval EFI_NOT_FOUND         The header checksum was not zero.
 187
 188 **/
 189 EFI_STATUS
 190 EFIAPI
 191 PeiServicesFfsFindNextFile (
 192   IN EFI_FV_FILETYPE            SearchType,
 193   IN EFI_PEI_FV_HANDLE          VolumeHandle,
 194   IN OUT EFI_PEI_FILE_HANDLE    *FileHandle
 195   );
 196
 197 /**
 198   This service enables PEIMs to discover sections of a given type within a valid FFS file.
 199
 200   @param  SectionType           The value of the section type to find.
 201   @param  FileHandle            A pointer to the file header that contains the set of sections to
 202                                 be searched.
 203   @param  SectionData           A pointer to the discovered section, if successful.
 204
 205   @retval EFI_SUCCESS           The section was found.
 206   @retval EFI_NOT_FOUND         The section was not found.
 207
 208 **/
 209 EFI_STATUS
 210 EFIAPI
 211 PeiServicesFfsFindSectionData (
 212   IN EFI_SECTION_TYPE           SectionType,
 213   IN EFI_PEI_FILE_HANDLE        FileHandle,
 214   OUT VOID                      **SectionData
 215   );
 216
 217 /**
 218   This service enables PEIMs to discover sections of a given instance and type within a valid FFS file.
 219
 220   @param  SectionType           The value of the section type to find.
 221   @param  SectionInstance       Section instance to find.
 222   @param  FileHandle            A pointer to the file header that contains the set
 223                                 of sections to be searched.
 224   @param  SectionData           A pointer to the discovered section, if successful.
 225   @param  AuthenticationStatus  A pointer to the authentication status for this section.
 226
 227   @retval EFI_SUCCESS           The section was found.
 228   @retval EFI_NOT_FOUND         The section was not found.
 229
 230 **/
 231 EFI_STATUS
 232 EFIAPI
 233 PeiServicesFfsFindSectionData3 (
 234   IN EFI_SECTION_TYPE           SectionType,
 235   IN UINTN                      SectionInstance,
 236   IN EFI_PEI_FILE_HANDLE        FileHandle,
 237   OUT VOID                      **SectionData,
 238   OUT UINT32                    *AuthenticationStatus
 239   );
 240
 241 /**
 242   This service enables PEIMs to register the permanent memory configuration
 243   that has been initialized with the PEI Foundation.
 244
 245   @param  MemoryBegin           The value of a region of installed memory.
 246   @param  MemoryLength          The corresponding length of a region of installed memory.
 247
 248   @retval EFI_SUCCESS           The region was successfully installed in a HOB.
 249   @retval EFI_INVALID_PARAMETER MemoryBegin and MemoryLength are illegal for this system.
 250   @retval EFI_OUT_OF_RESOURCES  There is no additional space for HOB creation.
 251
 252 **/
 253 EFI_STATUS
 254 EFIAPI
 255 PeiServicesInstallPeiMemory (
 256   IN EFI_PHYSICAL_ADDRESS       MemoryBegin,
 257   IN UINT64                     MemoryLength
 258   );
 259
 260 /**
 261   This service enables PEIMs to allocate memory.
 262
 263   @param  MemoryType            Type of memory to allocate.
 264   @param  Pages                 The number of pages to allocate.
 265   @param  Memory                Pointer of memory allocated.
 266
 267   @retval EFI_SUCCESS           The memory range was successfully allocated.
 268   @retval EFI_INVALID_PARAMETER Type is not equal to EfiLoaderCode, EfiLoaderData, EfiRuntimeServicesCode,
 269                                 EfiRuntimeServicesData, EfiBootServicesCode, EfiBootServicesData,
 270                                 EfiACPIReclaimMemory, EfiReservedMemoryType, or EfiACPIMemoryNVS.
 271   @retval EFI_OUT_OF_RESOURCES  The pages could not be allocated.
 272
 273 **/
 274 EFI_STATUS
 275 EFIAPI
 276 PeiServicesAllocatePages (
 277   IN EFI_MEMORY_TYPE            MemoryType,
 278   IN UINTN                      Pages,
 279   OUT EFI_PHYSICAL_ADDRESS      *Memory
 280   );
 281
 282 /**
 283   This service enables PEIMs to free memory.
 284
 285   @param Memory                 Memory to be freed.
 286   @param Pages                  The number of pages to free.
 287
 288   @retval EFI_SUCCESS           The requested pages were freed.
 289   @retval EFI_INVALID_PARAMETER Memory is not a page-aligned address or Pages is invalid.
 290   @retval EFI_NOT_FOUND         The requested memory pages were not allocated with
 291                                 AllocatePages().
 292
 293 **/
 294 EFI_STATUS
 295 EFIAPI
 296 PeiServicesFreePages (
 297   IN EFI_PHYSICAL_ADDRESS       Memory,
 298   IN UINTN                      Pages
 299   );
 300
 301 /**
 302   This service allocates memory from the Hand-Off Block (HOB) heap.
 303
 304   @param  Size                  The number of bytes to allocate from the pool.
 305   @param  Buffer                If the call succeeds, a pointer to a pointer to the allocate
 306                                 buffer; undefined otherwise.
 307
 308   @retval EFI_SUCCESS           The allocation was successful
 309   @retval EFI_OUT_OF_RESOURCES  There is not enough heap to allocate the requested size.
 310
 311 **/
 312 EFI_STATUS
 313 EFIAPI
 314 PeiServicesAllocatePool (
 315   IN UINTN                      Size,
 316   OUT VOID                      **Buffer
 317   );
 318
 319 /**
 320   Resets the entire platform.
 321
 322   @retval EFI_SUCCESS           The function completed successfully.
 323   @retval EFI_NOT_AVAILABLE_YET The service has not been installed yet.
 324
 325 **/
 326 EFI_STATUS
 327 EFIAPI
 328 PeiServicesResetSystem (
 329   VOID
 330   );
 331
 332
 333 /**
 334   This service is a wrapper for the PEI Service FfsFindByName(), except the pointer to the PEI Services
 335   Table has been removed.  See the Platform Initialization Pre-EFI Initialization Core Interface
 336   Specification for details.
 337
 338   @param FileName       A pointer to the name of the file to
 339                         find within the firmware volume.
 340
 341   @param VolumeHandle   The firmware volume to search FileHandle
 342                         Upon exit, points to the found file's
 343                         handle or NULL if it could not be found.
 344   @param FileHandle     Pointer to found file handle
 345
 346   @retval EFI_SUCCESS             File was found.
 347
 348   @retval EFI_NOT_FOUND           File was not found.
 349
 350   @retval EFI_INVALID_PARAMETER   VolumeHandle or FileHandle or
 351                                   FileName was NULL.
 352
 353 **/
 354 EFI_STATUS
 355 EFIAPI
 356 PeiServicesFfsFindFileByName (
 357   IN CONST  EFI_GUID            *FileName,
 358   IN CONST  EFI_PEI_FV_HANDLE   VolumeHandle,
 359   OUT       EFI_PEI_FILE_HANDLE *FileHandle
 360   );
 361
 362
 363 /**
 364   This service is a wrapper for the PEI Service FfsGetFileInfo(), except the pointer to the PEI Services
 365   Table has been removed.  See the Platform Initialization Pre-EFI Initialization Core Interface
 366   Specification for details.
 367
 368   @param FileHandle   Handle of the file.
 369
 370   @param FileInfo     Upon exit, points to the file's
 371                       information.
 372
 373   @retval EFI_SUCCESS             File information returned.
 374
 375   @retval EFI_INVALID_PARAMETER   If FileHandle does not
 376                                   represent a valid file.
 377
 378   @retval EFI_INVALID_PARAMETER   If FileInfo is NULL.
 379
 380 **/
 381 EFI_STATUS
 382 EFIAPI
 383 PeiServicesFfsGetFileInfo (
 384   IN CONST  EFI_PEI_FILE_HANDLE   FileHandle,
 385   OUT EFI_FV_FILE_INFO            *FileInfo
 386   );
 387
 388 /**
 389   This service is a wrapper for the PEI Service FfsGetFileInfo2(), except the pointer to the PEI Services
 390   Table has been removed. See the Platform Initialization Pre-EFI Initialization Core Interface
 391   Specification for details.
 392
 393   @param FileHandle   Handle of the file.
 394
 395   @param FileInfo     Upon exit, points to the file's
 396                       information.
 397
 398   @retval EFI_SUCCESS             File information returned.
 399
 400   @retval EFI_INVALID_PARAMETER   If FileHandle does not
 401                                   represent a valid file.
 402
 403   @retval EFI_INVALID_PARAMETER   If FileInfo is NULL.
 404
 405 **/
 406 EFI_STATUS
 407 EFIAPI
 408 PeiServicesFfsGetFileInfo2 (
 409   IN CONST  EFI_PEI_FILE_HANDLE   FileHandle,
 410   OUT EFI_FV_FILE_INFO2           *FileInfo
 411   );
 412
 413 /**
 414   This service is a wrapper for the PEI Service FfsGetVolumeInfo(), except the pointer to the PEI Services
 415   Table has been removed.  See the Platform Initialization Pre-EFI Initialization Core Interface
 416   Specification for details.
 417
 418   @param VolumeHandle   Handle of the volume.
 419
 420   @param VolumeInfo     Upon exit, points to the volume's
 421                         information.
 422
 423   @retval EFI_SUCCESS             File information returned.
 424
 425   @retval EFI_INVALID_PARAMETER   If FileHandle does not
 426                                   represent a valid file.
 427
 428   @retval EFI_INVALID_PARAMETER   If FileInfo is NULL.
 429
 430 **/
 431 EFI_STATUS
 432 EFIAPI
 433 PeiServicesFfsGetVolumeInfo (
 434   IN  EFI_PEI_FV_HANDLE       VolumeHandle,
 435   OUT EFI_FV_INFO             *VolumeInfo
 436   );
 437
 438
 439 /**
 440   This service is a wrapper for the PEI Service RegisterForShadow(), except the pointer to the PEI Services
 441   Table has been removed.  See the Platform Initialization Pre-EFI Initialization Core Interface
 442   Specification for details.
 443
 444   @param FileHandle   PEIM's file handle. Must be the currently
 445                       executing PEIM.
 446
 447   @retval EFI_SUCCESS   The PEIM was successfully registered for
 448                         shadowing.
 449
 450   @retval EFI_ALREADY_STARTED   The PEIM was previously
 451                                 registered for shadowing.
 452
 453   @retval EFI_NOT_FOUND   The FileHandle does not refer to a
 454                           valid file handle.
 455 **/
 456 EFI_STATUS
 457 EFIAPI
 458 PeiServicesRegisterForShadow (
 459   IN  EFI_PEI_FILE_HANDLE FileHandle
 460   );
 461
 462 /**
 463   Install a EFI_PEI_FIRMWARE_VOLUME_INFO_PPI instance so the PEI Core will be notified about a new firmware volume.
 464
 465   This function allocates, initializes, and installs a new EFI_PEI_FIRMWARE_VOLUME_INFO_PPI using
 466   the parameters passed in to initialize the fields of the EFI_PEI_FIRMWARE_VOLUME_INFO_PPI instance.
 467   If the resources can not be allocated for EFI_PEI_FIRMWARE_VOLUME_INFO_PPI, then ASSERT().
 468   If the EFI_PEI_FIRMWARE_VOLUME_INFO_PPI can not be installed, then ASSERT().
 469
 470
 471   @param  FvFormat             Unique identifier of the format of the memory-mapped firmware volume.
 472                                This parameter is optional and may be NULL.
 473                                If NULL is specified, the EFI_FIRMWARE_FILE_SYSTEM2_GUID format is assumed.
 474   @param  FvInfo               Points to a buffer which allows the EFI_PEI_FIRMWARE_VOLUME_PPI to process the volume.
 475                                The format of this buffer is specific to the FvFormat. For memory-mapped firmware volumes,
 476                                this typically points to the first byte of the firmware volume.
 477   @param  FvInfoSize           The size, in bytes, of FvInfo. For memory-mapped firmware volumes,
 478                                this is typically the size of the firmware volume.
 479   @param  ParentFvName         If the new firmware volume originated from a file in a different firmware volume,
 480                                then this parameter specifies the GUID name of the originating firmware volume.
 481                                Otherwise, this parameter must be NULL.
 482   @param  ParentFileName       If the new firmware volume originated from a file in a different firmware volume,
 483                                then this parameter specifies the GUID file name of the originating firmware file.
 484                                Otherwise, this parameter must be NULL.
 485 **/
 486 VOID
 487 EFIAPI
 488 PeiServicesInstallFvInfoPpi (
 489   IN CONST EFI_GUID                *FvFormat, OPTIONAL
 490   IN CONST VOID                    *FvInfo,
 491   IN       UINT32                  FvInfoSize,
 492   IN CONST EFI_GUID                *ParentFvName, OPTIONAL
 493   IN CONST EFI_GUID                *ParentFileName OPTIONAL
 494   );
 495
 496 /**
 497   Install a EFI_PEI_FIRMWARE_VOLUME_INFO2_PPI instance so the PEI Core will be notified about a new firmware volume.
 498
 499   This function allocates, initializes, and installs a new EFI_PEI_FIRMWARE_VOLUME_INFO2_PPI using
 500   the parameters passed in to initialize the fields of the EFI_PEI_FIRMWARE_VOLUME_INFO2_PPI instance.
 501   If the resources can not be allocated for EFI_PEI_FIRMWARE_VOLUME_INFO2_PPI, then ASSERT().
 502   If the EFI_PEI_FIRMWARE_VOLUME_INFO2_PPI can not be installed, then ASSERT().
 503
 504   @param  FvFormat             Unique identifier of the format of the memory-mapped
 505                                firmware volume.  This parameter is optional and
 506                                may be NULL.  If NULL is specified, the
 507                                EFI_FIRMWARE_FILE_SYSTEM2_GUID format is assumed.
 508   @param  FvInfo               Points to a buffer which allows the
 509                                EFI_PEI_FIRMWARE_VOLUME_PPI to process the volume.
 510                                The format of this buffer is specific to the FvFormat.
 511                                For memory-mapped firmware volumes, this typically
 512                                points to the first byte of the firmware volume.
 513   @param  FvInfoSize           The size, in bytes, of FvInfo. For memory-mapped
 514                                firmware volumes, this is typically the size of
 515                                the firmware volume.
 516   @param  ParentFvName         If the new firmware volume originated from a file
 517                                in a different firmware volume, then this parameter
 518                                specifies the GUID name of the originating firmware
 519                                volume. Otherwise, this parameter must be NULL.
 520   @param  ParentFileName       If the new firmware volume originated from a file
 521                                in a different firmware volume, then this parameter
 522                                specifies the GUID file name of the originating
 523                                firmware file. Otherwise, this parameter must be NULL.
 524   @param  AuthenticationStatus Authentication Status
 525 **/
 526 VOID
 527 EFIAPI
 528 PeiServicesInstallFvInfo2Ppi (
 529   IN CONST EFI_GUID                *FvFormat, OPTIONAL
 530   IN CONST VOID                    *FvInfo,
 531   IN       UINT32                  FvInfoSize,
 532   IN CONST EFI_GUID                *ParentFvName, OPTIONAL
 533   IN CONST EFI_GUID                *ParentFileName, OPTIONAL
 534   IN       UINT32                  AuthenticationStatus
 535   );
 536
 537 /**
 538   Resets the entire platform.
 539
 540   @param[in] ResetType      The type of reset to perform.
 541   @param[in] ResetStatus    The status code for the reset.
 542   @param[in] DataSize       The size, in bytes, of ResetData.
 543   @param[in] ResetData      For a ResetType of EfiResetCold, EfiResetWarm, or EfiResetShutdown
 544                             the data buffer starts with a Null-terminated string, optionally
 545                             followed by additional binary data. The string is a description
 546                             that the caller may use to further indicate the reason for the
 547                             system reset.
 548
 549 **/
 550 VOID
 551 EFIAPI
 552 PeiServicesResetSystem2 (
 553   IN EFI_RESET_TYPE     ResetType,
 554   IN EFI_STATUS         ResetStatus,
 555   IN UINTN              DataSize,
 556   IN VOID               *ResetData OPTIONAL
 557   );
 558
 559 #endif