MdePkg/Include/Pi/PiDxeCis.h

   1 /** @file
   2   Include file matches things in PI.
   3
   4 Copyright (c) 2006 - 2011, Intel Corporation. All rights reserved.<BR>
   5 This program and the accompanying materials are licensed and made available under
   6 the terms and conditions of the BSD License that accompanies this distribution.
   7 The full text of the license may be found at
   8 http://opensource.org/licenses/bsd-license.php.
   9
  10 THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
  11 WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
  12
  13   @par Revision Reference:
  14   PI Version 1.2
  15
  16 **/
  17
  18 #ifndef __PI_DXECIS_H__
  19 #define __PI_DXECIS_H__
  20
  21 #include <Uefi/UefiMultiPhase.h>
  22 #include <Pi/PiMultiPhase.h>
  23
  24 ///
  25 /// Global Coherencey Domain types - Memory type.
  26 ///
  27 typedef enum {
  28   ///
  29   /// A memory region that is visible to the boot processor. However, there are no system
  30   /// components that are currently decoding this memory region.
  31   ///
  32   EfiGcdMemoryTypeNonExistent,
  33   ///
  34   /// A memory region that is visible to the boot processor. This memory region is being
  35   /// decoded by a system component, but the memory region is not considered to be either
  36   /// system memory or memory-mapped I/O.
  37   ///
  38   EfiGcdMemoryTypeReserved,
  39   ///
  40   /// A memory region that is visible to the boot processor. A memory controller is
  41   /// currently decoding this memory region and the memory controller is producing a
  42   /// tested system memory region that is available to the memory services.
  43   ///
  44   EfiGcdMemoryTypeSystemMemory,
  45   ///
  46   /// A memory region that is visible to the boot processor. This memory region is
  47   /// currently being decoded by a component as memory-mapped I/O that can be used to
  48   /// access I/O devices in the platform.
  49   ///
  50   EfiGcdMemoryTypeMemoryMappedIo,
  51   EfiGcdMemoryTypeMaximum
  52 } EFI_GCD_MEMORY_TYPE;
  53
  54 ///
  55 /// Global Coherencey Domain types - IO type.
  56 ///
  57 typedef enum {
  58   ///
  59   /// An I/O region that is visible to the boot processor. However, there are no system
  60   /// components that are currently decoding this I/O region.
  61   ///
  62   EfiGcdIoTypeNonExistent,
  63   ///
  64   /// An I/O region that is visible to the boot processor. This I/O region is currently being
  65   /// decoded by a system component, but the I/O region cannot be used to access I/O devices.
  66   ///
  67   EfiGcdIoTypeReserved,
  68   ///
  69   /// An I/O region that is visible to the boot processor. This I/O region is currently being
  70   /// decoded by a system component that is producing I/O ports that can be used to access I/O devices.
  71   ///
  72   EfiGcdIoTypeIo,
  73   EfiGcdIoTypeMaximum
  74 } EFI_GCD_IO_TYPE;
  75
  76 ///
  77 /// The type of allocation to perform.
  78 ///
  79 typedef enum {
  80   ///
  81   /// The GCD memory space map is searched from the lowest address up to the highest address
  82   /// looking for unallocated memory ranges.
  83   ///
  84   EfiGcdAllocateAnySearchBottomUp,
  85   ///
  86   /// The GCD memory space map is searched from the lowest address up
  87   /// to the specified MaxAddress looking for unallocated memory ranges.
  88   ///
  89   EfiGcdAllocateMaxAddressSearchBottomUp,
  90   ///
  91   /// The GCD memory space map is checked to see if the memory range starting
  92   /// at the specified Address is available.
  93   ///
  94   EfiGcdAllocateAddress,
  95   ///
  96   /// The GCD memory space map is searched from the highest address down to the lowest address
  97   /// looking for unallocated memory ranges.
  98   ///
  99   EfiGcdAllocateAnySearchTopDown,
 100   ///
 101   /// The GCD memory space map is searched from the specified MaxAddress
 102   /// down to the lowest address looking for unallocated memory ranges.
 103   ///
 104   EfiGcdAllocateMaxAddressSearchTopDown,
 105   EfiGcdMaxAllocateType
 106 } EFI_GCD_ALLOCATE_TYPE;
 107
 108 ///
 109 /// EFI_GCD_MEMORY_SPACE_DESCRIPTOR.
 110 ///
 111 typedef struct {
 112   ///
 113   /// The physical address of the first byte in the memory region. Type
 114   /// EFI_PHYSICAL_ADDRESS is defined in the AllocatePages() function
 115   /// description in the UEFI 2.0 specification.
 116   ///
 117   EFI_PHYSICAL_ADDRESS  BaseAddress;
 118
 119   ///
 120   /// The number of bytes in the memory region.
 121   ///
 122   UINT64                Length;
 123
 124   ///
 125   /// The bit mask of attributes that the memory region is capable of supporting. The bit
 126   /// mask of available attributes is defined in the GetMemoryMap() function description
 127   /// in the UEFI 2.0 specification.
 128   ///
 129   UINT64                Capabilities;
 130   ///
 131   /// The bit mask of attributes that the memory region is currently using. The bit mask of
 132   /// available attributes is defined in GetMemoryMap().
 133   ///
 134   UINT64                Attributes;
 135   ///
 136   /// Type of the memory region. Type EFI_GCD_MEMORY_TYPE is defined in the
 137   /// AddMemorySpace() function description.
 138   ///
 139   EFI_GCD_MEMORY_TYPE   GcdMemoryType;
 140
 141   ///
 142   /// The image handle of the agent that allocated the memory resource described by
 143   /// PhysicalStart and NumberOfBytes. If this field is NULL, then the memory
 144   /// resource is not currently allocated. Type EFI_HANDLE is defined in
 145   /// InstallProtocolInterface() in the UEFI 2.0 specification.
 146   ///
 147   EFI_HANDLE            ImageHandle;
 148
 149   ///
 150   /// The device handle for which the memory resource has been allocated. If
 151   /// ImageHandle is NULL, then the memory resource is not currently allocated. If this
 152   /// field is NULL, then the memory resource is not associated with a device that is
 153   /// described by a device handle. Type EFI_HANDLE is defined in
 154   /// InstallProtocolInterface() in the UEFI 2.0 specification.
 155   ///
 156   EFI_HANDLE            DeviceHandle;
 157 } EFI_GCD_MEMORY_SPACE_DESCRIPTOR;
 158
 159 ///
 160 /// EFI_GCD_IO_SPACE_DESCRIPTOR.
 161 ///
 162 typedef struct {
 163   ///
 164   /// Physical address of the first byte in the I/O region. Type
 165   /// EFI_PHYSICAL_ADDRESS is defined in the AllocatePages() function
 166   /// description in the UEFI 2.0 specification.
 167   ///
 168   EFI_PHYSICAL_ADDRESS  BaseAddress;
 169
 170   ///
 171   /// Number of bytes in the I/O region.
 172   ///
 173   UINT64                Length;
 174
 175   ///
 176   /// Type of the I/O region. Type EFI_GCD_IO_TYPE is defined in the
 177   /// AddIoSpace() function description.
 178   ///
 179   EFI_GCD_IO_TYPE       GcdIoType;
 180
 181   ///
 182   /// The image handle of the agent that allocated the I/O resource described by
 183   /// PhysicalStart and NumberOfBytes. If this field is NULL, then the I/O
 184   /// resource is not currently allocated. Type EFI_HANDLE is defined in
 185   /// InstallProtocolInterface() in the UEFI 2.0 specification.
 186   ///
 187   EFI_HANDLE            ImageHandle;
 188
 189   ///
 190   /// The device handle for which the I/O resource has been allocated. If ImageHandle
 191   /// is NULL, then the I/O resource is not currently allocated. If this field is NULL, then
 192   /// the I/O resource is not associated with a device that is described by a device handle.
 193   /// Type EFI_HANDLE is defined in InstallProtocolInterface() in the UEFI
 194   /// 2.0 specification.
 195   ///
 196   EFI_HANDLE            DeviceHandle;
 197 } EFI_GCD_IO_SPACE_DESCRIPTOR;
 198
 199
 200 /**
 201   Adds reserved memory, system memory, or memory-mapped I/O resources to the
 202   global coherency domain of the processor.
 203
 204   @param  GcdMemoryType    The type of memory resource being added.
 205   @param  BaseAddress      The physical address that is the start address
 206                            of the memory resource being added.
 207   @param  Length           The size, in bytes, of the memory resource that
 208                            is being added.
 209   @param  Capabilities     The bit mask of attributes that the memory
 210                            resource region supports.
 211
 212   @retval EFI_SUCCESS            The memory resource was added to the global
 213                                  coherency domain of the processor.
 214   @retval EFI_INVALID_PARAMETER  GcdMemoryType is invalid.
 215   @retval EFI_INVALID_PARAMETER  Length is zero.
 216   @retval EFI_OUT_OF_RESOURCES   There are not enough system resources to add
 217                                  the memory resource to the global coherency
 218                                  domain of the processor.
 219   @retval EFI_UNSUPPORTED        The processor does not support one or more bytes
 220                                  of the memory resource range specified by
 221                                  BaseAddress and Length.
 222   @retval EFI_ACCESS_DENIED      One or more bytes of the memory resource range
 223                                  specified by BaseAddress and Length conflicts
 224                                  with a memory resource range that was previously
 225                                  added to the global coherency domain of the processor.
 226   @retval EFI_ACCESS_DENIED      One or more bytes of the memory resource range
 227                                  specified by BaseAddress and Length was allocated
 228                                  in a prior call to AllocateMemorySpace().
 229
 230 **/
 231 typedef
 232 EFI_STATUS
 233 (EFIAPI *EFI_ADD_MEMORY_SPACE)(
 234   IN EFI_GCD_MEMORY_TYPE   GcdMemoryType,
 235   IN EFI_PHYSICAL_ADDRESS  BaseAddress,
 236   IN UINT64                Length,
 237   IN UINT64                Capabilities
 238   );
 239
 240 /**
 241   Allocates nonexistent memory, reserved memory, system memory, or memorymapped
 242   I/O resources from the global coherency domain of the processor.
 243
 244   @param  GcdAllocateType  The type of allocation to perform.
 245   @param  GcdMemoryType    The type of memory resource being allocated.
 246   @param  Alignment        The log base 2 of the boundary that BaseAddress must
 247                            be aligned on output. Align with 2^Alignment.
 248   @param  Length           The size in bytes of the memory resource range that
 249                            is being allocated.
 250   @param  BaseAddress      A pointer to a physical address to allocate.
 251   @param  Imagehandle      The image handle of the agent that is allocating
 252                            the memory resource.
 253   @param  DeviceHandle     The device handle for which the memory resource
 254                            is being allocated.
 255
 256   @retval EFI_INVALID_PARAMETER GcdAllocateType is invalid.
 257   @retval EFI_INVALID_PARAMETER GcdMemoryType is invalid.
 258   @retval EFI_INVALID_PARAMETER Length is zero.
 259   @retval EFI_INVALID_PARAMETER BaseAddress is NULL.
 260   @retval EFI_INVALID_PARAMETER ImageHandle is NULL.
 261   @retval EFI_NOT_FOUND         The memory resource request could not be satisfied.
 262                                 No descriptor contains the desired space.
 263   @retval EFI_OUT_OF_RESOURCES  There are not enough system resources to allocate the memory
 264                                 resource from the global coherency domain of the processor.
 265   @retval EFI_SUCCESS           The memory resource was allocated from the global coherency
 266                                 domain of the processor.
 267
 268
 269 **/
 270 typedef
 271 EFI_STATUS
 272 (EFIAPI *EFI_ALLOCATE_MEMORY_SPACE)(
 273   IN     EFI_GCD_ALLOCATE_TYPE               GcdAllocateType,
 274   IN     EFI_GCD_MEMORY_TYPE                 GcdMemoryType,
 275   IN     UINTN                               Alignment,
 276   IN     UINT64                              Length,
 277   IN OUT EFI_PHYSICAL_ADDRESS                *BaseAddress,
 278   IN     EFI_HANDLE                          ImageHandle,
 279   IN     EFI_HANDLE                          DeviceHandle OPTIONAL
 280   );
 281
 282 /**
 283   Frees nonexistent memory, reserved memory, system memory, or memory-mapped
 284   I/O resources from the global coherency domain of the processor.
 285
 286   @param  BaseAddress      The physical address that is the start address of the memory resource being freed.
 287   @param  Length           The size in bytes of the memory resource range that is being freed.
 288
 289   @retval EFI_SUCCESS           The memory resource was freed from the global coherency domain of
 290                                 the processor.
 291   @retval EFI_INVALID_PARAMETER Length is zero.
 292   @retval EFI_UNSUPPORTED       The processor does not support one or more bytes of the memory
 293                                 resource range specified by BaseAddress and Length.
 294   @retval EFI_NOT_FOUND         The memory resource range specified by BaseAddress and
 295                                 Length was not allocated with previous calls to AllocateMemorySpace().
 296   @retval EFI_OUT_OF_RESOURCES  There are not enough system resources to free the memory resource
 297                                 from the global coherency domain of the processor.
 298
 299 **/
 300 typedef
 301 EFI_STATUS
 302 (EFIAPI *EFI_FREE_MEMORY_SPACE)(
 303   IN EFI_PHYSICAL_ADDRESS  BaseAddress,
 304   IN UINT64                Length
 305   );
 306
 307 /**
 308   Removes reserved memory, system memory, or memory-mapped I/O resources from
 309   the global coherency domain of the processor.
 310
 311   @param  BaseAddress      The physical address that is the start address of the memory resource being removed.
 312   @param  Length           The size in bytes of the memory resource that is being removed.
 313
 314   @retval EFI_SUCCESS           The memory resource was removed from the global coherency
 315                                 domain of the processor.
 316   @retval EFI_INVALID_PARAMETER Length is zero.
 317   @retval EFI_UNSUPPORTED       The processor does not support one or more bytes of the memory
 318                                 resource range specified by BaseAddress and Length.
 319   @retval EFI_NOT_FOUND         One or more bytes of the memory resource range specified by
 320                                 BaseAddress and Length was not added with previous calls to
 321                                 AddMemorySpace().
 322   @retval EFI_ACCESS_DEFINED    One or more bytes of the memory resource range specified by
 323                                 BaseAddress and Length has been allocated with AllocateMemorySpace().
 324   @retval EFI_OUT_OF_RESOURCES  There are not enough system resources to remove the memory
 325                                 resource from the global coherency domain of the processor.
 326
 327 **/
 328 typedef
 329 EFI_STATUS
 330 (EFIAPI *EFI_REMOVE_MEMORY_SPACE)(
 331   IN EFI_PHYSICAL_ADDRESS  BaseAddress,
 332   IN UINT64                Length
 333   );
 334
 335 /**
 336   Retrieves the descriptor for a memory region containing a specified address.
 337
 338   @param  BaseAddress      The physical address that is the start address of a memory region.
 339   @param  Descriptor       A pointer to a caller allocated descriptor.
 340
 341   @retval EFI_SUCCESS           The descriptor for the memory resource region containing
 342                                 BaseAddress was returned in Descriptor.
 343   @retval EFI_INVALID_PARAMETER Descriptor is NULL.
 344   @retval EFI_NOT_FOUND         A memory resource range containing BaseAddress was not found.
 345
 346 **/
 347 typedef
 348 EFI_STATUS
 349 (EFIAPI *EFI_GET_MEMORY_SPACE_DESCRIPTOR)(
 350   IN  EFI_PHYSICAL_ADDRESS             BaseAddress,
 351   OUT EFI_GCD_MEMORY_SPACE_DESCRIPTOR  *Descriptor
 352   );
 353
 354 /**
 355   Modifies the attributes for a memory region in the global coherency domain of the
 356   processor.
 357
 358   @param  BaseAddress      The physical address that is the start address of a memory region.
 359   @param  Length           The size in bytes of the memory region.
 360   @param  Attributes       The bit mask of attributes to set for the memory region.
 361
 362   @retval EFI_SUCCESS           The attributes were set for the memory region.
 363   @retval EFI_INVALID_PARAMETER Length is zero.
 364   @retval EFI_UNSUPPORTED       The processor does not support one or more bytes of the memory
 365                                 resource range specified by BaseAddress and Length.
 366   @retval EFI_UNSUPPORTED       The bit mask of attributes is not support for the memory resource
 367                                 range specified by BaseAddress and Length.
 368   @retval EFI_ACCESS_DEFINED    The attributes for the memory resource range specified by
 369                                 BaseAddress and Length cannot be modified.
 370   @retval EFI_OUT_OF_RESOURCES  There are not enough system resources to modify the attributes of
 371                                 the memory resource range.
 372   @retval EFI_NOT_AVAILABLE_YET The attributes cannot be set because CPU architectural protocol is
 373                                 not available yet.
 374 **/
 375 typedef
 376 EFI_STATUS
 377 (EFIAPI *EFI_SET_MEMORY_SPACE_ATTRIBUTES)(
 378   IN EFI_PHYSICAL_ADDRESS         BaseAddress,
 379   IN UINT64                       Length,
 380   IN UINT64                       Attributes
 381   );
 382
 383 /**
 384   Returns a map of the memory resources in the global coherency domain of the
 385   processor.
 386
 387   @param  NumberOfDescriptors A pointer to number of descriptors returned in the MemorySpaceMap buffer.
 388   @param  MemorySpaceMap      A pointer to the array of EFI_GCD_MEMORY_SPACE_DESCRIPTORs.
 389
 390   @retval EFI_SUCCESS           The memory space map was returned in the MemorySpaceMap
 391                                 buffer, and the number of descriptors in MemorySpaceMap was
 392                                 returned in NumberOfDescriptors.
 393   @retval EFI_INVALID_PARAMETER NumberOfDescriptors is NULL.
 394   @retval EFI_INVALID_PARAMETER MemorySpaceMap is NULL.
 395   @retval EFI_OUT_OF_RESOURCES  There are not enough resources to allocate MemorySpaceMap.
 396
 397 **/
 398 typedef
 399 EFI_STATUS
 400 (EFIAPI *EFI_GET_MEMORY_SPACE_MAP)(
 401   OUT UINTN                            *NumberOfDescriptors,
 402   OUT EFI_GCD_MEMORY_SPACE_DESCRIPTOR  **MemorySpaceMap
 403   );
 404
 405 /**
 406   Adds reserved I/O or I/O resources to the global coherency domain of the processor.
 407
 408   @param  GcdIoType        The type of I/O resource being added.
 409   @param  BaseAddress      The physical address that is the start address of the I/O resource being added.
 410   @param  Length           The size in bytes of the I/O resource that is being added.
 411
 412   @retval EFI_SUCCESS           The I/O resource was added to the global coherency domain of
 413                                 the processor.
 414   @retval EFI_INVALID_PARAMETER GcdIoType is invalid.
 415   @retval EFI_INVALID_PARAMETER Length is zero.
 416   @retval EFI_OUT_OF_RESOURCES  There are not enough system resources to add the I/O resource to
 417                                 the global coherency domain of the processor.
 418   @retval EFI_UNSUPPORTED       The processor does not support one or more bytes of the I/O
 419                                 resource range specified by BaseAddress and Length.
 420   @retval EFI_ACCESS_DENIED     One or more bytes of the I/O resource range specified by
 421                                 BaseAddress and Length conflicts with an I/O resource
 422                                 range that was previously added to the global coherency domain
 423                                 of the processor.
 424   @retval EFI_ACCESS_DENIED     One or more bytes of the I/O resource range specified by
 425                                 BaseAddress and Length was allocated in a prior call to
 426                                 AllocateIoSpace().
 427
 428 **/
 429 typedef
 430 EFI_STATUS
 431 (EFIAPI *EFI_ADD_IO_SPACE)(
 432   IN EFI_GCD_IO_TYPE       GcdIoType,
 433   IN EFI_PHYSICAL_ADDRESS  BaseAddress,
 434   IN UINT64                Length
 435   );
 436
 437 /**
 438   Allocates nonexistent I/O, reserved I/O, or I/O resources from the global coherency
 439   domain of the processor.
 440
 441   @param  GcdAllocateType  The type of allocation to perform.
 442   @param  GcdIoType        The type of I/O resource being allocated.
 443   @param  Alignment        The log base 2 of the boundary that BaseAddress must be aligned on output.
 444   @param  Length           The size in bytes of the I/O resource range that is being allocated.
 445   @param  BaseAddress      A pointer to a physical address.
 446   @param  Imagehandle      The image handle of the agent that is allocating the I/O resource.
 447   @param  DeviceHandle     The device handle for which the I/O resource is being allocated.
 448
 449   @retval EFI_SUCCESS           The I/O resource was allocated from the global coherency domain
 450                                 of the processor.
 451   @retval EFI_INVALID_PARAMETER GcdAllocateType is invalid.
 452   @retval EFI_INVALID_PARAMETER GcdIoType is invalid.
 453   @retval EFI_INVALID_PARAMETER Length is zero.
 454   @retval EFI_INVALID_PARAMETER BaseAddress is NULL.
 455   @retval EFI_INVALID_PARAMETER ImageHandle is NULL.
 456   @retval EFI_OUT_OF_RESOURCES  There are not enough system resources to allocate the I/O
 457                                 resource from the global coherency domain of the processor.
 458   @retval EFI_NOT_FOUND         The I/O resource request could not be satisfied.
 459
 460 **/
 461 typedef
 462 EFI_STATUS
 463 (EFIAPI *EFI_ALLOCATE_IO_SPACE)(
 464   IN     EFI_GCD_ALLOCATE_TYPE               GcdAllocateType,
 465   IN     EFI_GCD_IO_TYPE                     GcdIoType,
 466   IN     UINTN                               Alignment,
 467   IN     UINT64                              Length,
 468   IN OUT EFI_PHYSICAL_ADDRESS                *BaseAddress,
 469   IN     EFI_HANDLE                          ImageHandle,
 470   IN     EFI_HANDLE                          DeviceHandle OPTIONAL
 471   );
 472
 473 /**
 474   Frees nonexistent I/O, reserved I/O, or I/O resources from the global coherency
 475   domain of the processor.
 476
 477   @param  BaseAddress      The physical address that is the start address of the I/O resource being freed.
 478   @param  Length           The size in bytes of the I/O resource range that is being freed.
 479
 480   @retval EFI_SUCCESS           The I/O resource was freed from the global coherency domain of the
 481                                 processor.
 482   @retval EFI_INVALID_PARAMETER Length is zero.
 483   @retval EFI_UNSUPPORTED       The processor does not support one or more bytes of the I/O resource
 484                                 range specified by BaseAddress and Length.
 485   @retval EFI_NOT_FOUND         The I/O resource range specified by BaseAddress and Length
 486                                 was not allocated with previous calls to AllocateIoSpace().
 487   @retval EFI_OUT_OF_RESOURCES  There are not enough system resources to free the I/O resource from
 488                                 the global coherency domain of the processor.
 489
 490 **/
 491 typedef
 492 EFI_STATUS
 493 (EFIAPI *EFI_FREE_IO_SPACE)(
 494   IN EFI_PHYSICAL_ADDRESS  BaseAddress,
 495   IN UINT64                Length
 496   );
 497
 498 /**
 499   Removes reserved I/O or I/O resources from the global coherency domain of the
 500   processor.
 501
 502   @param  BaseAddress      A pointer to a physical address that is the start address of the I/O resource being
 503                            removed.
 504   @param Length            The size in bytes of the I/O resource that is being removed.
 505
 506   @retval EFI_SUCCESS           The I/O resource was removed from the global coherency domain
 507                                 of the processor.
 508   @retval EFI_INVALID_PARAMETER Length is zero.
 509   @retval EFI_UNSUPPORTED       The processor does not support one or more bytes of the I/O
 510                                 resource range specified by BaseAddress and Length.
 511   @retval EFI_NOT_FOUND         One or more bytes of the I/O resource range specified by
 512                                 BaseAddress and Length was not added with previous
 513                                 calls to AddIoSpace().
 514   @retval EFI_ACCESS_DENIED     One or more bytes of the I/O resource range specified by
 515                                 BaseAddress and Length has been allocated with
 516                                 AllocateIoSpace().
 517   @retval EFI_OUT_OF_RESOURCES  There are not enough system resources to remove the I/O
 518                                 resource from the global coherency domain of the processor.
 519
 520 **/
 521 typedef
 522 EFI_STATUS
 523 (EFIAPI *EFI_REMOVE_IO_SPACE)(
 524   IN EFI_PHYSICAL_ADDRESS  BaseAddress,
 525   IN UINT64                Length
 526   );
 527
 528 /**
 529   Retrieves the descriptor for an I/O region containing a specified address.
 530
 531   @param  BaseAddress      The physical address that is the start address of an I/O region.
 532   @param  Descriptor       A pointer to a caller allocated descriptor.
 533
 534   @retval EFI_SUCCESS           The descriptor for the I/O resource region containing
 535                                 BaseAddress was returned in Descriptor.
 536   @retval EFI_INVALID_PARAMETER Descriptor is NULL.
 537   @retval EFI_NOT_FOUND         An I/O resource range containing BaseAddress was not found.
 538
 539 **/
 540 typedef
 541 EFI_STATUS
 542 (EFIAPI *EFI_GET_IO_SPACE_DESCRIPTOR)(
 543   IN  EFI_PHYSICAL_ADDRESS         BaseAddress,
 544   OUT EFI_GCD_IO_SPACE_DESCRIPTOR  *Descriptor
 545   );
 546
 547 /**
 548   Returns a map of the I/O resources in the global coherency domain of the processor.
 549
 550   @param  NumberOfDescriptors A pointer to number of descriptors returned in the IoSpaceMap buffer.
 551   @param  MemorySpaceMap      A pointer to the array of EFI_GCD_IO_SPACE_DESCRIPTORs.
 552
 553   @retval EFI_SUCCESS           The I/O space map was returned in the IoSpaceMap buffer, and
 554                                 the number of descriptors in IoSpaceMap was returned in
 555                                 NumberOfDescriptors.
 556   @retval EFI_INVALID_PARAMETER NumberOfDescriptors is NULL.
 557   @retval EFI_INVALID_PARAMETER IoSpaceMap is NULL.
 558   @retval EFI_OUT_OF_RESOURCES  There are not enough resources to allocate IoSpaceMap.
 559
 560
 561 **/
 562 typedef
 563 EFI_STATUS
 564 (EFIAPI *EFI_GET_IO_SPACE_MAP)(
 565   OUT UINTN                        *NumberOfDescriptors,
 566   OUT EFI_GCD_IO_SPACE_DESCRIPTOR  **IoSpaceMap
 567   );
 568
 569
 570
 571 /**
 572   Loads and executed DXE drivers from firmware volumes.
 573
 574   The Dispatch() function searches for DXE drivers in firmware volumes that have been
 575   installed since the last time the Dispatch() service was called. It then evaluates
 576   the dependency expressions of all the DXE drivers and loads and executes those DXE
 577   drivers whose dependency expression evaluate to TRUE. This service must interact with
 578   the Security Architectural Protocol to authenticate DXE drivers before they are executed.
 579   This process is continued until no more DXE drivers can be executed.
 580
 581   @retval EFI_SUCCESS         One or more DXE driver were dispatched.
 582   @retval EFI_NOT_FOUND       No DXE drivers were dispatched.
 583   @retval EFI_ALREADY_STARTED An attempt is being made to start the DXE Dispatcher recursively.
 584                               Thus, no action was taken.
 585
 586 **/
 587 typedef
 588 EFI_STATUS
 589 (EFIAPI *EFI_DISPATCH)(
 590   VOID
 591   );
 592
 593 /**
 594   Clears the Schedule on Request (SOR) flag for a component that is stored in a firmware volume.
 595
 596   @param  FirmwareVolumeHandle The handle of the firmware volume that contains the file specified by FileName.
 597   @param  FileName             A pointer to the name of the file in a firmware volume.
 598
 599   @retval EFI_SUCCESS         The DXE driver was found and its SOR bit was cleared.
 600   @retval EFI_NOT_FOUND       The DXE driver does not exist, or the DXE driver exists and its SOR
 601                               bit is not set.
 602
 603 **/
 604 typedef
 605 EFI_STATUS
 606 (EFIAPI *EFI_SCHEDULE)(
 607   IN EFI_HANDLE  FirmwareVolumeHandle,
 608   IN CONST EFI_GUID    *FileName
 609   );
 610
 611 /**
 612   Promotes a file stored in a firmware volume from the untrusted to the trusted state.
 613
 614   @param  FirmwareVolumeHandle The handle of the firmware volume that contains the file specified by FileName.
 615   @param  DriverName           A pointer to the name of the file in a firmware volume.
 616
 617   @return Status of promoting FFS from untrusted to trusted
 618           state.
 619   @retval EFI_NOT_FOUND       The file was not found in the untrusted state.
 620
 621 **/
 622 typedef
 623 EFI_STATUS
 624 (EFIAPI *EFI_TRUST)(
 625   IN EFI_HANDLE  FirmwareVolumeHandle,
 626   IN CONST EFI_GUID    *FileName
 627   );
 628
 629 /**
 630   Creates a firmware volume handle for a firmware volume that is present in system memory.
 631
 632   @param  FirmwareVolumeHeader A pointer to the header of the firmware volume.
 633   @param  Size                 The size, in bytes, of the firmware volume.
 634   @param  FirmwareVolumeHandle On output, a pointer to the created handle.
 635
 636   @retval EFI_SUCCESS          The EFI_FIRMWARE_VOLUME_PROTOCOL and
 637                                EFI_DEVICE_PATH_PROTOCOL were installed onto
 638                                FirmwareVolumeHandle for the firmware volume described
 639                                by FirmwareVolumeHeader and Size.
 640   @retval EFI_VOLUME_CORRUPTED The firmware volume described by FirmwareVolumeHeader
 641                                and Size is corrupted.
 642   @retval EFI_OUT_OF_RESOURCES There are not enough system resources available to produce the
 643                                EFI_FIRMWARE_VOLUME_PROTOCOL and EFI_DEVICE_PATH_PROTOCOL
 644                                for the firmware volume described by FirmwareVolumeHeader and Size.
 645
 646 **/
 647 typedef
 648 EFI_STATUS
 649 (EFIAPI *EFI_PROCESS_FIRMWARE_VOLUME)(
 650   IN CONST VOID                       *FirmwareVolumeHeader,
 651   IN UINTN                            Size,
 652   OUT EFI_HANDLE                      *FirmwareVolumeHandle
 653   );
 654
 655 //
 656 // DXE Services Table
 657 //
 658 #define DXE_SERVICES_SIGNATURE            0x565245535f455844ULL
 659 #define DXE_SPECIFICATION_MAJOR_REVISION  1
 660 #define DXE_SPECIFICATION_MINOR_REVISION  20
 661 #define DXE_SERVICES_REVISION             ((DXE_SPECIFICATION_MAJOR_REVISION<<16) | (DXE_SPECIFICATION_MINOR_REVISION))
 662
 663 typedef struct {
 664   ///
 665   /// The table header for the DXE Services Table.
 666   /// This header contains the DXE_SERVICES_SIGNATURE and DXE_SERVICES_REVISION values.
 667   ///
 668   EFI_TABLE_HEADER                Hdr;
 669
 670   //
 671   // Global Coherency Domain Services
 672   //
 673   EFI_ADD_MEMORY_SPACE            AddMemorySpace;
 674   EFI_ALLOCATE_MEMORY_SPACE       AllocateMemorySpace;
 675   EFI_FREE_MEMORY_SPACE           FreeMemorySpace;
 676   EFI_REMOVE_MEMORY_SPACE         RemoveMemorySpace;
 677   EFI_GET_MEMORY_SPACE_DESCRIPTOR GetMemorySpaceDescriptor;
 678   EFI_SET_MEMORY_SPACE_ATTRIBUTES SetMemorySpaceAttributes;
 679   EFI_GET_MEMORY_SPACE_MAP        GetMemorySpaceMap;
 680   EFI_ADD_IO_SPACE                AddIoSpace;
 681   EFI_ALLOCATE_IO_SPACE           AllocateIoSpace;
 682   EFI_FREE_IO_SPACE               FreeIoSpace;
 683   EFI_REMOVE_IO_SPACE             RemoveIoSpace;
 684   EFI_GET_IO_SPACE_DESCRIPTOR     GetIoSpaceDescriptor;
 685   EFI_GET_IO_SPACE_MAP            GetIoSpaceMap;
 686
 687   //
 688   // Dispatcher Services
 689   //
 690   EFI_DISPATCH                    Dispatch;
 691   EFI_SCHEDULE                    Schedule;
 692   EFI_TRUST                       Trust;
 693   //
 694   // Service to process a single firmware volume found in a capsule
 695   //
 696   EFI_PROCESS_FIRMWARE_VOLUME     ProcessFirmwareVolume;
 697 } DXE_SERVICES;
 698
 699 typedef DXE_SERVICES EFI_DXE_SERVICES;
 700
 701
 702 /**
 703   The function prototype for invoking a function on an Application Processor.
 704
 705   This definition is used by the UEFI MP Serices Protocol, and the
 706   PI SMM System Table.
 707
 708   @param[in,out] Buffer  The pointer to private data buffer.
 709 **/
 710 typedef
 711 VOID
 712 (EFIAPI *EFI_AP_PROCEDURE)(
 713   IN OUT VOID  *Buffer
 714   );
 715
 716 #endif