EdkCompatibilityPkg/Foundation/Library/EdkIIGlueLib/Include/Library/EdkIIGlueHobLib.h

   1 /*++
   2
   3 Copyright (c) 2004 - 2006, Intel Corporation. All rights reserved.<BR>
   4 This program and the accompanying materials
   5 are licensed and made available under the terms and conditions of the BSD License
   6 which accompanies this distribution.  The full text of the license may be found at
   7 http://opensource.org/licenses/bsd-license.php
   8
   9 THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
  10 WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
  11
  12
  13 Module Name:
  14
  15   EdkIIGlueHobLib.h
  16
  17 Abstract:
  18
  19   Public header file for Hob Lib
  20
  21 --*/
  22
  23 #ifndef __EDKII_GLUE_HOB_LIB_H__
  24 #define __EDKII_GLUE_HOB_LIB_H__
  25
  26
  27 #define GetFirstGuidHob(_GUID)                                                            GlueGetFirstGuidHob(_GUID)
  28 #define GetNextGuidHob(_GUID, _HobStart)                                                  GlueGetNextGuidHob(_GUID, _HobStart)
  29 #define BuildFvHob(_BASEADDRESS, _LENGTH)                                                 GlueBuildFvHob(_BASEADDRESS, _LENGTH)
  30 #define BuildModuleHob(_MODULENAME, _MEMORYALLOCATIONMODULE, _MODULELENGTH, _ENTRYPOINT)  GlueBuildModuleHob(_MODULENAME, _MEMORYALLOCATIONMODULE, _MODULELENGTH, _ENTRYPOINT)
  31 #define BuildMemoryAllocationHob(_BASEADDRESS, _LENGTH, _MEMORYTYPE)                      GlueBuildMemoryAllocationHob(_BASEADDRESS, _LENGTH, _MEMORYTYPE)
  32
  33
  34 /**
  35   Returns the pointer to the HOB list.
  36
  37   This function returns the pointer to first HOB in the list.
  38
  39   @return The pointer to the HOB list.
  40
  41 **/
  42 VOID *
  43 EFIAPI
  44 GetHobList (
  45   VOID
  46   );
  47
  48 /**
  49   Returns the next instance of a HOB type from the starting HOB.
  50
  51   This function searches the first instance of a HOB type from the starting HOB pointer.
  52   If there does not exist such HOB type from the starting HOB pointer, it will return NULL.
  53   In contrast with macro GET_NEXT_HOB(), this function does not skip the starting HOB pointer
  54   unconditionally: it returns HobStart back if HobStart itself meets the requirement;
  55   caller is required to use GET_NEXT_HOB() if it wishes to skip current HobStart.
  56   If HobStart is NULL, then ASSERT().
  57
  58   @param  Type          The HOB type to return.
  59   @param  HobStart      The starting HOB pointer to search from.
  60
  61   @return The next instance of a HOB type from the starting HOB.
  62
  63 **/
  64 VOID *
  65 EFIAPI
  66 GetNextHob (
  67   IN UINT16                 Type,
  68   IN CONST VOID             *HobStart
  69   );
  70
  71 /**
  72   Returns the first instance of a HOB type among the whole HOB list.
  73
  74   This function searches the first instance of a HOB type among the whole HOB list.
  75   If there does not exist such HOB type in the HOB list, it will return NULL.
  76
  77   @param  Type          The HOB type to return.
  78
  79   @return The next instance of a HOB type from the starting HOB.
  80
  81 **/
  82 VOID *
  83 EFIAPI
  84 GetFirstHob (
  85   IN UINT16                 Type
  86   );
  87
  88 /**
  89   This function searches the first instance of a HOB from the starting HOB pointer.
  90   Such HOB should satisfy two conditions:
  91   its HOB type is EFI_HOB_TYPE_GUID_EXTENSION and its GUID Name equals to the input Guid.
  92   If there does not exist such HOB from the starting HOB pointer, it will return NULL.
  93   Caller is required to apply GET_GUID_HOB_DATA () and GET_GUID_HOB_DATA_SIZE ()
  94   to extract the data section and its size info respectively.
  95   In contrast with macro GET_NEXT_HOB(), this function does not skip the starting HOB pointer
  96   unconditionally: it returns HobStart back if HobStart itself meets the requirement;
  97   caller is required to use GET_NEXT_HOB() if it wishes to skip current HobStart.
  98   If Guid is NULL, then ASSERT().
  99   If HobStart is NULL, then ASSERT().
 100
 101   @param  Guid          The GUID to match with in the HOB list.
 102   @param  HobStart      A pointer to a Guid.
 103
 104   @return The next instance of the matched GUID HOB from the starting HOB.
 105
 106 **/
 107 VOID *
 108 EFIAPI
 109 GlueGetNextGuidHob (
 110   IN CONST EFI_GUID         *Guid,
 111   IN CONST VOID             *HobStart
 112   );
 113
 114 /**
 115   This function searches the first instance of a HOB among the whole HOB list.
 116   Such HOB should satisfy two conditions:
 117   its HOB type is EFI_HOB_TYPE_GUID_EXTENSION and its GUID Name equals to the input Guid.
 118   If there does not exist such HOB from the starting HOB pointer, it will return NULL.
 119   Caller is required to apply GET_GUID_HOB_DATA () and GET_GUID_HOB_DATA_SIZE ()
 120   to extract the data section and its size info respectively.
 121   If Guid is NULL, then ASSERT().
 122
 123   @param  Guid          The GUID to match with in the HOB list.
 124
 125   @return The first instance of the matched GUID HOB among the whole HOB list.
 126
 127 **/
 128 VOID *
 129 EFIAPI
 130 GlueGetFirstGuidHob (
 131   IN CONST EFI_GUID         *Guid
 132   );
 133
 134 /**
 135   Get the Boot Mode from the HOB list.
 136
 137   This function returns the system boot mode information from the
 138   PHIT HOB in HOB list.
 139
 140   @param  VOID
 141
 142   @return The Boot Mode.
 143
 144 **/
 145 EFI_BOOT_MODE
 146 EFIAPI
 147 GetBootModeHob (
 148   VOID
 149   );
 150
 151 /**
 152   Builds a HOB for a loaded PE32 module.
 153
 154   This function builds a HOB for a loaded PE32 module.
 155   It can only be invoked during PEI phase;
 156   for DXE phase, it will ASSERT() since PEI HOB is read-only for DXE phase.
 157   If ModuleName is NULL, then ASSERT().
 158   If there is no additional space for HOB creation, then ASSERT().
 159
 160   @param  ModuleName              The GUID File Name of the module.
 161   @param  MemoryAllocationModule  The 64 bit physical address of the module.
 162   @param  ModuleLength            The length of the module in bytes.
 163   @param  EntryPoint              The 64 bit physical address of the module entry point.
 164
 165 **/
 166 VOID
 167 EFIAPI
 168 GlueBuildModuleHob (
 169   IN CONST EFI_GUID         *ModuleName,
 170   IN EFI_PHYSICAL_ADDRESS   MemoryAllocationModule,
 171   IN UINT64                 ModuleLength,
 172   IN EFI_PHYSICAL_ADDRESS   EntryPoint
 173   );
 174
 175 /**
 176   Builds a HOB that describes a chunk of system memory.
 177
 178   This function builds a HOB that describes a chunk of system memory.
 179   It can only be invoked during PEI phase;
 180   for DXE phase, it will ASSERT() since PEI HOB is read-only for DXE phase.
 181   If there is no additional space for HOB creation, then ASSERT().
 182
 183   @param  ResourceType        The type of resource described by this HOB.
 184   @param  ResourceAttribute   The resource attributes of the memory described by this HOB.
 185   @param  PhysicalStart       The 64 bit physical address of memory described by this HOB.
 186   @param  NumberOfBytes       The length of the memory described by this HOB in bytes.
 187
 188 **/
 189 VOID
 190 EFIAPI
 191 BuildResourceDescriptorHob (
 192   IN EFI_RESOURCE_TYPE            ResourceType,
 193   IN EFI_RESOURCE_ATTRIBUTE_TYPE  ResourceAttribute,
 194   IN EFI_PHYSICAL_ADDRESS         PhysicalStart,
 195   IN UINT64                       NumberOfBytes
 196   );
 197
 198 /**
 199   Builds a GUID HOB with a certain data length.
 200
 201   This function builds a customized HOB tagged with a GUID for identification
 202   and returns the start address of GUID HOB data so that caller can fill the customized data.
 203   The HOB Header and Name field is already stripped.
 204   It can only be invoked during PEI phase;
 205   for DXE phase, it will ASSERT() since PEI HOB is read-only for DXE phase.
 206   If Guid is NULL, then ASSERT().
 207   If there is no additional space for HOB creation, then ASSERT().
 208   If DataLength >= (0x10000 - sizeof (EFI_HOB_GUID_TYPE)), then ASSERT().
 209
 210   @param  Guid          The GUID to tag the customized HOB.
 211   @param  DataLength    The size of the data payload for the GUID HOB.
 212
 213   @return The start address of GUID HOB data.
 214
 215 **/
 216 VOID *
 217 EFIAPI
 218 BuildGuidHob (
 219   IN CONST EFI_GUID              *Guid,
 220   IN UINTN                       DataLength
 221   );
 222
 223 /**
 224   Copies a data buffer to a newly-built HOB.
 225
 226   This function builds a customized HOB tagged with a GUID for identification,
 227   copies the input data to the HOB data field and returns the start address of the GUID HOB data.
 228   The HOB Header and Name field is already stripped.
 229   It can only be invoked during PEI phase;
 230   for DXE phase, it will ASSERT() since PEI HOB is read-only for DXE phase.
 231   If Guid is NULL, then ASSERT().
 232   If Data is NULL and DataLength > 0, then ASSERT().
 233   If there is no additional space for HOB creation, then ASSERT().
 234   If DataLength >= (0x10000 - sizeof (EFI_HOB_GUID_TYPE)), then ASSERT().
 235
 236   @param  Guid          The GUID to tag the customized HOB.
 237   @param  Data          The data to be copied into the data field of the GUID HOB.
 238   @param  DataLength    The size of the data payload for the GUID HOB.
 239
 240   @return The start address of GUID HOB data.
 241
 242 **/
 243 VOID *
 244 EFIAPI
 245 BuildGuidDataHob (
 246   IN CONST EFI_GUID              *Guid,
 247   IN VOID                        *Data,
 248   IN UINTN                       DataLength
 249   );
 250
 251 /**
 252   Builds a Firmware Volume HOB.
 253
 254   This function builds a Firmware Volume HOB.
 255   It can only be invoked during PEI phase;
 256   for DXE phase, it will ASSERT() since PEI HOB is read-only for DXE phase.
 257   If there is no additional space for HOB creation, then ASSERT().
 258
 259   @param  BaseAddress   The base address of the Firmware Volume.
 260   @param  Length        The size of the Firmware Volume in bytes.
 261
 262 **/
 263 VOID
 264 EFIAPI
 265 BuildFvHob (
 266   IN EFI_PHYSICAL_ADDRESS        BaseAddress,
 267   IN UINT64                      Length
 268   );
 269
 270 /**
 271   Builds a Capsule Volume HOB.
 272
 273   This function builds a Capsule Volume HOB.
 274   It can only be invoked during PEI phase;
 275   for DXE phase, it will ASSERT() since PEI HOB is read-only for DXE phase.
 276   If there is no additional space for HOB creation, then ASSERT().
 277
 278   @param  BaseAddress   The base address of the Capsule Volume.
 279   @param  Length        The size of the Capsule Volume in bytes.
 280
 281 **/
 282 VOID
 283 EFIAPI
 284 BuildCvHob (
 285   IN EFI_PHYSICAL_ADDRESS        BaseAddress,
 286   IN UINT64                      Length
 287   );
 288
 289 /**
 290   Builds a HOB for the CPU.
 291
 292   This function builds a HOB for the CPU.
 293   It can only be invoked during PEI phase;
 294   for DXE phase, it will ASSERT() since PEI HOB is read-only for DXE phase.
 295   If there is no additional space for HOB creation, then ASSERT().
 296
 297   @param  SizeOfMemorySpace   The maximum physical memory addressability of the processor.
 298   @param  SizeOfIoSpace       The maximum physical I/O addressability of the processor.
 299
 300 **/
 301 VOID
 302 EFIAPI
 303 BuildCpuHob (
 304   IN UINT8                       SizeOfMemorySpace,
 305   IN UINT8                       SizeOfIoSpace
 306   );
 307
 308 /**
 309   Builds a HOB for the Stack.
 310
 311   This function builds a HOB for the stack.
 312   It can only be invoked during PEI phase;
 313   for DXE phase, it will ASSERT() since PEI HOB is read-only for DXE phase.
 314   If there is no additional space for HOB creation, then ASSERT().
 315
 316   @param  BaseAddress   The 64 bit physical address of the Stack.
 317   @param  Length        The length of the stack in bytes.
 318
 319 **/
 320 VOID
 321 EFIAPI
 322 BuildStackHob (
 323   IN EFI_PHYSICAL_ADDRESS        BaseAddress,
 324   IN UINT64                      Length
 325   );
 326
 327 /**
 328   Builds a HOB for the BSP store.
 329
 330   This function builds a HOB for BSP store.
 331   It can only be invoked during PEI phase;
 332   for DXE phase, it will ASSERT() since PEI HOB is read-only for DXE phase.
 333   If there is no additional space for HOB creation, then ASSERT().
 334
 335   @param  BaseAddress   The 64 bit physical address of the BSP.
 336   @param  Length        The length of the BSP store in bytes.
 337   @param  MemoryType    Type of memory allocated by this HOB.
 338
 339 **/
 340 VOID
 341 EFIAPI
 342 BuildBspStoreHob (
 343   IN EFI_PHYSICAL_ADDRESS        BaseAddress,
 344   IN UINT64                      Length,
 345   IN EFI_MEMORY_TYPE             MemoryType
 346   );
 347
 348 /**
 349   Builds a HOB for the memory allocation.
 350
 351   This function builds a HOB for the memory allocation.
 352   It can only be invoked during PEI phase;
 353   for DXE phase, it will ASSERT() since PEI HOB is read-only for DXE phase.
 354   If there is no additional space for HOB creation, then ASSERT().
 355
 356   @param  BaseAddress   The 64 bit physical address of the memory.
 357   @param  Length        The length of the memory allocation in bytes.
 358   @param  MemoryType    Type of memory allocated by this HOB.
 359
 360 **/
 361 VOID
 362 EFIAPI
 363 GlueBuildMemoryAllocationHob (
 364   IN EFI_PHYSICAL_ADDRESS        BaseAddress,
 365   IN UINT64                      Length,
 366   IN EFI_MEMORY_TYPE             MemoryType
 367   );
 368
 369 #endif