| | 1 | /** @file\r |
| | 2 | Instance of HOB Library using PEI Services.\r |
| | 3 | \r |
| | 4 | HOB Library implementation that uses PEI Services to retrieve the HOB List.\r |
| | 5 | This library instance uses EFI_HOB_TYPE_CV defined in Intel framework HOB specification v0.9\r |
| | 6 | to implement HobLib BuildCvHob() API.\r |
| | 7 | \r |
| | 8 | Copyright (c) 2007 - 2018, Intel Corporation. All rights reserved.<BR>\r |
| | 9 | SPDX-License-Identifier: BSD-2-Clause-Patent\r |
| | 10 | \r |
| | 11 | **/\r |
| | 12 | \r |
| | 13 | #include <FrameworkPei.h>\r |
| | 14 | \r |
| | 15 | #include <Guid/MemoryAllocationHob.h>\r |
| | 16 | \r |
| | 17 | #include <Library/HobLib.h>\r |
| | 18 | #include <Library/DebugLib.h>\r |
| | 19 | #include <Library/PeiServicesLib.h>\r |
| | 20 | #include <Library/BaseMemoryLib.h>\r |
| | 21 | \r |
| | 22 | /**\r |
| | 23 | Returns the pointer to the HOB list.\r |
| | 24 | \r |
| | 25 | This function returns the pointer to first HOB in the list.\r |
| | 26 | For PEI phase, the PEI service GetHobList() can be used to retrieve the pointer\r |
| | 27 | to the HOB list. For the DXE phase, the HOB list pointer can be retrieved through\r |
| | 28 | the EFI System Table by looking up theHOB list GUID in the System Configuration Table.\r |
| | 29 | Since the System Configuration Table does not exist that the time the DXE Core is\r |
| | 30 | launched, the DXE Core uses a global variable from the DXE Core Entry Point Library\r |
| | 31 | to manage the pointer to the HOB list.\r |
| | 32 | \r |
| | 33 | If the pointer to the HOB list is NULL, then ASSERT().\r |
| | 34 | \r |
| | 35 | @return The pointer to the HOB list.\r |
| | 36 | \r |
| | 37 | **/\r |
| | 38 | VOID *\r |
| | 39 | EFIAPI\r |
| | 40 | GetHobList (\r |
| | 41 | VOID\r |
| | 42 | )\r |
| | 43 | {\r |
| | 44 | EFI_STATUS Status;\r |
| | 45 | VOID *HobList;\r |
| | 46 | \r |
| | 47 | Status = PeiServicesGetHobList (&HobList);\r |
| | 48 | ASSERT_EFI_ERROR (Status);\r |
| | 49 | ASSERT (HobList != NULL);\r |
| | 50 | \r |
| | 51 | return HobList;\r |
| | 52 | }\r |
| | 53 | \r |
| | 54 | /**\r |
| | 55 | Returns the next instance of a HOB type from the starting HOB.\r |
| | 56 | \r |
| | 57 | This function searches the first instance of a HOB type from the starting HOB pointer.\r |
| | 58 | If there does not exist such HOB type from the starting HOB pointer, it will return NULL.\r |
| | 59 | In contrast with macro GET_NEXT_HOB(), this function does not skip the starting HOB pointer\r |
| | 60 | unconditionally: it returns HobStart back if HobStart itself meets the requirement;\r |
| | 61 | caller is required to use GET_NEXT_HOB() if it wishes to skip current HobStart.\r |
| | 62 | \r |
| | 63 | If HobStart is NULL, then ASSERT().\r |
| | 64 | \r |
| | 65 | @param Type The HOB type to return.\r |
| | 66 | @param HobStart The starting HOB pointer to search from.\r |
| | 67 | \r |
| | 68 | @return The next instance of a HOB type from the starting HOB.\r |
| | 69 | \r |
| | 70 | **/\r |
| | 71 | VOID *\r |
| | 72 | EFIAPI\r |
| | 73 | GetNextHob (\r |
| | 74 | IN UINT16 Type,\r |
| | 75 | IN CONST VOID *HobStart\r |
| | 76 | )\r |
| | 77 | {\r |
| | 78 | EFI_PEI_HOB_POINTERS Hob;\r |
| | 79 | \r |
| | 80 | ASSERT (HobStart != NULL);\r |
| | 81 | \r |
| | 82 | Hob.Raw = (UINT8 *) HobStart;\r |
| | 83 | //\r |
| | 84 | // Parse the HOB list until end of list or matching type is found.\r |
| | 85 | //\r |
| | 86 | while (!END_OF_HOB_LIST (Hob)) {\r |
| | 87 | if (Hob.Header->HobType == Type) {\r |
| | 88 | return Hob.Raw;\r |
| | 89 | }\r |
| | 90 | Hob.Raw = GET_NEXT_HOB (Hob);\r |
| | 91 | }\r |
| | 92 | return NULL;\r |
| | 93 | }\r |
| | 94 | \r |
| | 95 | /**\r |
| | 96 | Returns the first instance of a HOB type among the whole HOB list.\r |
| | 97 | \r |
| | 98 | This function searches the first instance of a HOB type among the whole HOB list.\r |
| | 99 | If there does not exist such HOB type in the HOB list, it will return NULL.\r |
| | 100 | \r |
| | 101 | If the pointer to the HOB list is NULL, then ASSERT().\r |
| | 102 | \r |
| | 103 | @param Type The HOB type to return.\r |
| | 104 | \r |
| | 105 | @return The next instance of a HOB type from the starting HOB.\r |
| | 106 | \r |
| | 107 | **/\r |
| | 108 | VOID *\r |
| | 109 | EFIAPI\r |
| | 110 | GetFirstHob (\r |
| | 111 | IN UINT16 Type\r |
| | 112 | )\r |
| | 113 | {\r |
| | 114 | VOID *HobList;\r |
| | 115 | \r |
| | 116 | HobList = GetHobList ();\r |
| | 117 | return GetNextHob (Type, HobList);\r |
| | 118 | }\r |
| | 119 | \r |
| | 120 | /**\r |
| | 121 | Returns the next instance of the matched GUID HOB from the starting HOB.\r |
| | 122 | \r |
| | 123 | This function searches the first instance of a HOB from the starting HOB pointer.\r |
| | 124 | Such HOB should satisfy two conditions:\r |
| | 125 | its HOB type is EFI_HOB_TYPE_GUID_EXTENSION and its GUID Name equals to the input Guid.\r |
| | 126 | If there does not exist such HOB from the starting HOB pointer, it will return NULL.\r |
| | 127 | Caller is required to apply GET_GUID_HOB_DATA () and GET_GUID_HOB_DATA_SIZE ()\r |
| | 128 | to extract the data section and its size info respectively.\r |
| | 129 | In contrast with macro GET_NEXT_HOB(), this function does not skip the starting HOB pointer\r |
| | 130 | unconditionally: it returns HobStart back if HobStart itself meets the requirement;\r |
| | 131 | caller is required to use GET_NEXT_HOB() if it wishes to skip current HobStart.\r |
| | 132 | \r |
| | 133 | If Guid is NULL, then ASSERT().\r |
| | 134 | If HobStart is NULL, then ASSERT().\r |
| | 135 | \r |
| | 136 | @param Guid The GUID to match with in the HOB list.\r |
| | 137 | @param HobStart A pointer to a Guid.\r |
| | 138 | \r |
| | 139 | @return The next instance of the matched GUID HOB from the starting HOB.\r |
| | 140 | \r |
| | 141 | **/\r |
| | 142 | VOID *\r |
| | 143 | EFIAPI\r |
| | 144 | GetNextGuidHob (\r |
| | 145 | IN CONST EFI_GUID *Guid,\r |
| | 146 | IN CONST VOID *HobStart\r |
| | 147 | )\r |
| | 148 | {\r |
| | 149 | EFI_PEI_HOB_POINTERS GuidHob;\r |
| | 150 | \r |
| | 151 | GuidHob.Raw = (UINT8 *) HobStart;\r |
| | 152 | while ((GuidHob.Raw = GetNextHob (EFI_HOB_TYPE_GUID_EXTENSION, GuidHob.Raw)) != NULL) {\r |
| | 153 | if (CompareGuid (Guid, &GuidHob.Guid->Name)) {\r |
| | 154 | break;\r |
| | 155 | }\r |
| | 156 | GuidHob.Raw = GET_NEXT_HOB (GuidHob);\r |
| | 157 | }\r |
| | 158 | return GuidHob.Raw;\r |
| | 159 | }\r |
| | 160 | \r |
| | 161 | /**\r |
| | 162 | Returns the first instance of the matched GUID HOB among the whole HOB list.\r |
| | 163 | \r |
| | 164 | This function searches the first instance of a HOB among the whole HOB list.\r |
| | 165 | Such HOB should satisfy two conditions:\r |
| | 166 | its HOB type is EFI_HOB_TYPE_GUID_EXTENSION and its GUID Name equals to the input Guid.\r |
| | 167 | If there does not exist such HOB from the starting HOB pointer, it will return NULL.\r |
| | 168 | Caller is required to apply GET_GUID_HOB_DATA () and GET_GUID_HOB_DATA_SIZE ()\r |
| | 169 | to extract the data section and its size info respectively.\r |
| | 170 | \r |
| | 171 | If the pointer to the HOB list is NULL, then ASSERT().\r |
| | 172 | If Guid is NULL, then ASSERT().\r |
| | 173 | \r |
| | 174 | @param Guid The GUID to match with in the HOB list.\r |
| | 175 | \r |
| | 176 | @return The first instance of the matched GUID HOB among the whole HOB list.\r |
| | 177 | \r |
| | 178 | **/\r |
| | 179 | VOID *\r |
| | 180 | EFIAPI\r |
| | 181 | GetFirstGuidHob (\r |
| | 182 | IN CONST EFI_GUID *Guid\r |
| | 183 | )\r |
| | 184 | {\r |
| | 185 | VOID *HobList;\r |
| | 186 | \r |
| | 187 | HobList = GetHobList ();\r |
| | 188 | return GetNextGuidHob (Guid, HobList);\r |
| | 189 | }\r |
| | 190 | \r |
| | 191 | /**\r |
| | 192 | Get the system boot mode from the HOB list.\r |
| | 193 | \r |
| | 194 | This function returns the system boot mode information from the\r |
| | 195 | PHIT HOB in HOB list.\r |
| | 196 | \r |
| | 197 | If the pointer to the HOB list is NULL, then ASSERT().\r |
| | 198 | \r |
| | 199 | @param VOID\r |
| | 200 | \r |
| | 201 | @return The Boot Mode.\r |
| | 202 | \r |
| | 203 | **/\r |
| | 204 | EFI_BOOT_MODE\r |
| | 205 | EFIAPI\r |
| | 206 | GetBootModeHob (\r |
| | 207 | VOID\r |
| | 208 | )\r |
| | 209 | {\r |
| | 210 | EFI_STATUS Status;\r |
| | 211 | EFI_BOOT_MODE BootMode;\r |
| | 212 | \r |
| | 213 | Status = PeiServicesGetBootMode (&BootMode);\r |
| | 214 | ASSERT_EFI_ERROR (Status);\r |
| | 215 | \r |
| | 216 | return BootMode;\r |
| | 217 | }\r |
| | 218 | \r |
| | 219 | /**\r |
| | 220 | Adds a new HOB to the HOB List.\r |
| | 221 | \r |
| | 222 | This internal function enables PEIMs to create various types of HOBs.\r |
| | 223 | \r |
| | 224 | @param Type Type of the new HOB.\r |
| | 225 | @param Length Length of the new HOB to allocate.\r |
| | 226 | \r |
| | 227 | @retval NULL The HOB could not be allocated.\r |
| | 228 | @retval others The address of new HOB.\r |
| | 229 | \r |
| | 230 | **/\r |
| | 231 | VOID *\r |
| | 232 | EFIAPI\r |
| | 233 | InternalPeiCreateHob (\r |
| | 234 | IN UINT16 Type,\r |
| | 235 | IN UINT16 Length\r |
| | 236 | )\r |
| | 237 | {\r |
| | 238 | EFI_STATUS Status;\r |
| | 239 | VOID *Hob;\r |
| | 240 | \r |
| | 241 | Status = PeiServicesCreateHob (Type, Length, &Hob);\r |
| | 242 | if (EFI_ERROR (Status)) {\r |
| | 243 | Hob = NULL;\r |
| | 244 | }\r |
| | 245 | //\r |
| | 246 | // Assume the process of HOB building is always successful.\r |
| | 247 | //\r |
| | 248 | ASSERT (Hob != NULL);\r |
| | 249 | return Hob;\r |
| | 250 | }\r |
| | 251 | \r |
| | 252 | /**\r |
| | 253 | Builds a HOB for a loaded PE32 module.\r |
| | 254 | \r |
| | 255 | This function builds a HOB for a loaded PE32 module.\r |
| | 256 | It can only be invoked during PEI phase;\r |
| | 257 | for DXE phase, it will ASSERT() since PEI HOB is read-only for DXE phase.\r |
| | 258 | \r |
| | 259 | If ModuleName is NULL, then ASSERT().\r |
| | 260 | If there is no additional space for HOB creation, then ASSERT().\r |
| | 261 | \r |
| | 262 | @param ModuleName The GUID File Name of the module.\r |
| | 263 | @param MemoryAllocationModule The 64 bit physical address of the module.\r |
| | 264 | @param ModuleLength The length of the module in bytes.\r |
| | 265 | @param EntryPoint The 64 bit physical address of the module entry point.\r |
| | 266 | \r |
| | 267 | **/\r |
| | 268 | VOID\r |
| | 269 | EFIAPI\r |
| | 270 | BuildModuleHob (\r |
| | 271 | IN CONST EFI_GUID *ModuleName,\r |
| | 272 | IN EFI_PHYSICAL_ADDRESS MemoryAllocationModule,\r |
| | 273 | IN UINT64 ModuleLength,\r |
| | 274 | IN EFI_PHYSICAL_ADDRESS EntryPoint\r |
| | 275 | )\r |
| | 276 | {\r |
| | 277 | EFI_HOB_MEMORY_ALLOCATION_MODULE *Hob;\r |
| | 278 | \r |
| | 279 | ASSERT (((MemoryAllocationModule & (EFI_PAGE_SIZE - 1)) == 0) &&\r |
| | 280 | ((ModuleLength & (EFI_PAGE_SIZE - 1)) == 0));\r |
| | 281 | \r |
| | 282 | Hob = InternalPeiCreateHob (EFI_HOB_TYPE_MEMORY_ALLOCATION, (UINT16) sizeof (EFI_HOB_MEMORY_ALLOCATION_MODULE));\r |
| | 283 | if (Hob == NULL) {\r |
| | 284 | return;\r |
| | 285 | }\r |
| | 286 | \r |
| | 287 | CopyGuid (&(Hob->MemoryAllocationHeader.Name), &gEfiHobMemoryAllocModuleGuid);\r |
| | 288 | Hob->MemoryAllocationHeader.MemoryBaseAddress = MemoryAllocationModule;\r |
| | 289 | Hob->MemoryAllocationHeader.MemoryLength = ModuleLength;\r |
| | 290 | Hob->MemoryAllocationHeader.MemoryType = EfiBootServicesCode;\r |
| | 291 | \r |
| | 292 | //\r |
| | 293 | // Zero the reserved space to match HOB spec\r |
| | 294 | //\r |
| | 295 | ZeroMem (Hob->MemoryAllocationHeader.Reserved, sizeof (Hob->MemoryAllocationHeader.Reserved));\r |
| | 296 | \r |
| | 297 | CopyGuid (&Hob->ModuleName, ModuleName);\r |
| | 298 | Hob->EntryPoint = EntryPoint;\r |
| | 299 | }\r |
| | 300 | \r |
| | 301 | /**\r |
| | 302 | Builds a HOB that describes a chunk of system memory with Owner GUID.\r |
| | 303 | \r |
| | 304 | This function builds a HOB that describes a chunk of system memory.\r |
| | 305 | It can only be invoked during PEI phase;\r |
| | 306 | for DXE phase, it will ASSERT() since PEI HOB is read-only for DXE phase.\r |
| | 307 | \r |
| | 308 | If there is no additional space for HOB creation, then ASSERT().\r |
| | 309 | \r |
| | 310 | @param ResourceType The type of resource described by this HOB.\r |
| | 311 | @param ResourceAttribute The resource attributes of the memory described by this HOB.\r |
| | 312 | @param PhysicalStart The 64 bit physical address of memory described by this HOB.\r |
| | 313 | @param NumberOfBytes The length of the memory described by this HOB in bytes.\r |
| | 314 | @param OwnerGUID GUID for the owner of this resource.\r |
| | 315 | \r |
| | 316 | **/\r |
| | 317 | VOID\r |
| | 318 | EFIAPI\r |
| | 319 | BuildResourceDescriptorWithOwnerHob (\r |
| | 320 | IN EFI_RESOURCE_TYPE ResourceType,\r |
| | 321 | IN EFI_RESOURCE_ATTRIBUTE_TYPE ResourceAttribute,\r |
| | 322 | IN EFI_PHYSICAL_ADDRESS PhysicalStart,\r |
| | 323 | IN UINT64 NumberOfBytes,\r |
| | 324 | IN EFI_GUID *OwnerGUID\r |
| | 325 | )\r |
| | 326 | {\r |
| | 327 | EFI_HOB_RESOURCE_DESCRIPTOR *Hob;\r |
| | 328 | \r |
| | 329 | Hob = InternalPeiCreateHob (EFI_HOB_TYPE_RESOURCE_DESCRIPTOR, (UINT16) sizeof (EFI_HOB_RESOURCE_DESCRIPTOR));\r |
| | 330 | if (Hob == NULL) {\r |
| | 331 | return;\r |
| | 332 | }\r |
| | 333 | \r |
| | 334 | Hob->ResourceType = ResourceType;\r |
| | 335 | Hob->ResourceAttribute = ResourceAttribute;\r |
| | 336 | Hob->PhysicalStart = PhysicalStart;\r |
| | 337 | Hob->ResourceLength = NumberOfBytes;\r |
| | 338 | \r |
| | 339 | CopyGuid (&Hob->Owner, OwnerGUID);\r |
| | 340 | }\r |
| | 341 | \r |
| | 342 | /**\r |
| | 343 | Builds a HOB that describes a chunk of system memory.\r |
| | 344 | \r |
| | 345 | This function builds a HOB that describes a chunk of system memory.\r |
| | 346 | It can only be invoked during PEI phase;\r |
| | 347 | for DXE phase, it will ASSERT() since PEI HOB is read-only for DXE phase.\r |
| | 348 | \r |
| | 349 | If there is no additional space for HOB creation, then ASSERT().\r |
| | 350 | \r |
| | 351 | @param ResourceType The type of resource described by this HOB.\r |
| | 352 | @param ResourceAttribute The resource attributes of the memory described by this HOB.\r |
| | 353 | @param PhysicalStart The 64 bit physical address of memory described by this HOB.\r |
| | 354 | @param NumberOfBytes The length of the memory described by this HOB in bytes.\r |
| | 355 | \r |
| | 356 | **/\r |
| | 357 | VOID\r |
| | 358 | EFIAPI\r |
| | 359 | BuildResourceDescriptorHob (\r |
| | 360 | IN EFI_RESOURCE_TYPE ResourceType,\r |
| | 361 | IN EFI_RESOURCE_ATTRIBUTE_TYPE ResourceAttribute,\r |
| | 362 | IN EFI_PHYSICAL_ADDRESS PhysicalStart,\r |
| | 363 | IN UINT64 NumberOfBytes\r |
| | 364 | )\r |
| | 365 | {\r |
| | 366 | EFI_HOB_RESOURCE_DESCRIPTOR *Hob;\r |
| | 367 | \r |
| | 368 | Hob = InternalPeiCreateHob (EFI_HOB_TYPE_RESOURCE_DESCRIPTOR, (UINT16) sizeof (EFI_HOB_RESOURCE_DESCRIPTOR));\r |
| | 369 | if (Hob == NULL) {\r |
| | 370 | return;\r |
| | 371 | }\r |
| | 372 | \r |
| | 373 | Hob->ResourceType = ResourceType;\r |
| | 374 | Hob->ResourceAttribute = ResourceAttribute;\r |
| | 375 | Hob->PhysicalStart = PhysicalStart;\r |
| | 376 | Hob->ResourceLength = NumberOfBytes;\r |
| | 377 | ZeroMem (&(Hob->Owner), sizeof (EFI_GUID));\r |
| | 378 | }\r |
| | 379 | \r |
| | 380 | /**\r |
| | 381 | Builds a customized HOB tagged with a GUID for identification and returns\r |
| | 382 | the start address of GUID HOB data.\r |
| | 383 | \r |
| | 384 | This function builds a customized HOB tagged with a GUID for identification\r |
| | 385 | and returns the start address of GUID HOB data so that caller can fill the customized data.\r |
| | 386 | The HOB Header and Name field is already stripped.\r |
| | 387 | It can only be invoked during PEI phase;\r |
| | 388 | for DXE phase, it will ASSERT() since PEI HOB is read-only for DXE phase.\r |
| | 389 | \r |
| | 390 | If Guid is NULL, then ASSERT().\r |
| | 391 | If there is no additional space for HOB creation, then ASSERT().\r |
| | 392 | If DataLength >= (0x10000 - sizeof (EFI_HOB_GUID_TYPE)), then ASSERT().\r |
| | 393 | \r |
| | 394 | @param Guid The GUID to tag the customized HOB.\r |
| | 395 | @param DataLength The size of the data payload for the GUID HOB.\r |
| | 396 | \r |
| | 397 | @retval NULL The GUID HOB could not be allocated.\r |
| | 398 | @retval others The start address of GUID HOB data.\r |
| | 399 | \r |
| | 400 | **/\r |
| | 401 | VOID *\r |
| | 402 | EFIAPI\r |
| | 403 | BuildGuidHob (\r |
| | 404 | IN CONST EFI_GUID *Guid,\r |
| | 405 | IN UINTN DataLength\r |
| | 406 | )\r |
| | 407 | {\r |
| | 408 | EFI_HOB_GUID_TYPE *Hob;\r |
| | 409 | \r |
| | 410 | //\r |
| | 411 | // Make sure Guid is valid\r |
| | 412 | //\r |
| | 413 | ASSERT (Guid != NULL);\r |
| | 414 | \r |
| | 415 | //\r |
| | 416 | // Make sure that data length is not too long.\r |
| | 417 | //\r |
| | 418 | ASSERT (DataLength <= (0xffff - sizeof (EFI_HOB_GUID_TYPE)));\r |
| | 419 | \r |
| | 420 | Hob = InternalPeiCreateHob (EFI_HOB_TYPE_GUID_EXTENSION, (UINT16) (sizeof (EFI_HOB_GUID_TYPE) + DataLength));\r |
| | 421 | if (Hob == NULL) {\r |
| | 422 | return Hob;\r |
| | 423 | }\r |
| | 424 | CopyGuid (&Hob->Name, Guid);\r |
| | 425 | return Hob + 1;\r |
| | 426 | }\r |
| | 427 | \r |
| | 428 | /**\r |
| | 429 | Builds a customized HOB tagged with a GUID for identification, copies the input data to the HOB\r |
| | 430 | data field, and returns the start address of the GUID HOB data.\r |
| | 431 | \r |
| | 432 | This function builds a customized HOB tagged with a GUID for identification and copies the input\r |
| | 433 | data to the HOB data field and returns the start address of the GUID HOB data. It can only be\r |
| | 434 | invoked during PEI phase; for DXE phase, it will ASSERT() since PEI HOB is read-only for DXE phase.\r |
| | 435 | The HOB Header and Name field is already stripped.\r |
| | 436 | It can only be invoked during PEI phase;\r |
| | 437 | for DXE phase, it will ASSERT() since PEI HOB is read-only for DXE phase.\r |
| | 438 | \r |
| | 439 | If Guid is NULL, then ASSERT().\r |
| | 440 | If Data is NULL and DataLength > 0, then ASSERT().\r |
| | 441 | If there is no additional space for HOB creation, then ASSERT().\r |
| | 442 | If DataLength >= (0x10000 - sizeof (EFI_HOB_GUID_TYPE)), then ASSERT().\r |
| | 443 | \r |
| | 444 | @param Guid The GUID to tag the customized HOB.\r |
| | 445 | @param Data The data to be copied into the data field of the GUID HOB.\r |
| | 446 | @param DataLength The size of the data payload for the GUID HOB.\r |
| | 447 | \r |
| | 448 | @retval NULL The GUID HOB could not be allocated.\r |
| | 449 | @retval others The start address of GUID HOB data.\r |
| | 450 | \r |
| | 451 | **/\r |
| | 452 | VOID *\r |
| | 453 | EFIAPI\r |
| | 454 | BuildGuidDataHob (\r |
| | 455 | IN CONST EFI_GUID *Guid,\r |
| | 456 | IN VOID *Data,\r |
| | 457 | IN UINTN DataLength\r |
| | 458 | )\r |
| | 459 | {\r |
| | 460 | VOID *HobData;\r |
| | 461 | \r |
| | 462 | ASSERT (Data != NULL || DataLength == 0);\r |
| | 463 | \r |
| | 464 | HobData = BuildGuidHob (Guid, DataLength);\r |
| | 465 | if (HobData == NULL) {\r |
| | 466 | return HobData;\r |
| | 467 | }\r |
| | 468 | \r |
| | 469 | return CopyMem (HobData, Data, DataLength);\r |
| | 470 | }\r |
| | 471 | \r |
| | 472 | /**\r |
| | 473 | Check FV alignment.\r |
| | 474 | \r |
| | 475 | @param BaseAddress The base address of the Firmware Volume.\r |
| | 476 | @param Length The size of the Firmware Volume in bytes.\r |
| | 477 | \r |
| | 478 | @retval TRUE FvImage buffer is at its required alignment.\r |
| | 479 | @retval FALSE FvImage buffer is not at its required alignment.\r |
| | 480 | \r |
| | 481 | **/\r |
| | 482 | BOOLEAN\r |
| | 483 | InternalCheckFvAlignment (\r |
| | 484 | IN EFI_PHYSICAL_ADDRESS BaseAddress,\r |
| | 485 | IN UINT64 Length\r |
| | 486 | )\r |
| | 487 | {\r |
| | 488 | EFI_FIRMWARE_VOLUME_HEADER *FwVolHeader;\r |
| | 489 | UINT32 FvAlignment;\r |
| | 490 | \r |
| | 491 | FvAlignment = 0;\r |
| | 492 | FwVolHeader = (EFI_FIRMWARE_VOLUME_HEADER *) (UINTN) BaseAddress;\r |
| | 493 | \r |
| | 494 | //\r |
| | 495 | // If EFI_FVB2_WEAK_ALIGNMENT is set in the volume header then the first byte of the volume\r |
| | 496 | // can be aligned on any power-of-two boundary. A weakly aligned volume can not be moved from\r |
| | 497 | // its initial linked location and maintain its alignment.\r |
| | 498 | //\r |
| | 499 | if ((FwVolHeader->Attributes & EFI_FVB2_WEAK_ALIGNMENT) != EFI_FVB2_WEAK_ALIGNMENT) {\r |
| | 500 | //\r |
| | 501 | // Get FvHeader alignment\r |
| | 502 | //\r |
| | 503 | FvAlignment = 1 << ((FwVolHeader->Attributes & EFI_FVB2_ALIGNMENT) >> 16);\r |
| | 504 | //\r |
| | 505 | // FvAlignment must be greater than or equal to 8 bytes of the minimum FFS alignment value.\r |
| | 506 | //\r |
| | 507 | if (FvAlignment < 8) {\r |
| | 508 | FvAlignment = 8;\r |
| | 509 | }\r |
| | 510 | if ((UINTN)BaseAddress % FvAlignment != 0) {\r |
| | 511 | //\r |
| | 512 | // FvImage buffer is not at its required alignment.\r |
| | 513 | //\r |
| | 514 | DEBUG ((\r |
| | 515 | DEBUG_ERROR,\r |
| | 516 | "Unaligned FvImage found at 0x%lx:0x%lx, the required alignment is 0x%x\n",\r |
| | 517 | BaseAddress,\r |
| | 518 | Length,\r |
| | 519 | FvAlignment\r |
| | 520 | ));\r |
| | 521 | return FALSE;\r |
| | 522 | }\r |
| | 523 | }\r |
| | 524 | \r |
| | 525 | return TRUE;\r |
| | 526 | }\r |
| | 527 | \r |
| | 528 | /**\r |
| | 529 | Builds a Firmware Volume HOB.\r |
| | 530 | \r |
| | 531 | This function builds a Firmware Volume HOB.\r |
| | 532 | It can only be invoked during PEI phase;\r |
| | 533 | for DXE phase, it will ASSERT() since PEI HOB is read-only for DXE phase.\r |
| | 534 | \r |
| | 535 | If there is no additional space for HOB creation, then ASSERT().\r |
| | 536 | If the FvImage buffer is not at its required alignment, then ASSERT().\r |
| | 537 | \r |
| | 538 | @param BaseAddress The base address of the Firmware Volume.\r |
| | 539 | @param Length The size of the Firmware Volume in bytes.\r |
| | 540 | \r |
| | 541 | **/\r |
| | 542 | VOID\r |
| | 543 | EFIAPI\r |
| | 544 | BuildFvHob (\r |
| | 545 | IN EFI_PHYSICAL_ADDRESS BaseAddress,\r |
| | 546 | IN UINT64 Length\r |
| | 547 | )\r |
| | 548 | {\r |
| | 549 | EFI_HOB_FIRMWARE_VOLUME *Hob;\r |
| | 550 | \r |
| | 551 | if (!InternalCheckFvAlignment (BaseAddress, Length)) {\r |
| | 552 | ASSERT (FALSE);\r |
| | 553 | return;\r |
| | 554 | }\r |
| | 555 | \r |
| | 556 | Hob = InternalPeiCreateHob (EFI_HOB_TYPE_FV, (UINT16) sizeof (EFI_HOB_FIRMWARE_VOLUME));\r |
| | 557 | if (Hob == NULL) {\r |
| | 558 | return;\r |
| | 559 | }\r |
| | 560 | \r |
| | 561 | Hob->BaseAddress = BaseAddress;\r |
| | 562 | Hob->Length = Length;\r |
| | 563 | }\r |
| | 564 | \r |
| | 565 | /**\r |
| | 566 | Builds a EFI_HOB_TYPE_FV2 HOB.\r |
| | 567 | \r |
| | 568 | This function builds a EFI_HOB_TYPE_FV2 HOB.\r |
| | 569 | It can only be invoked during PEI phase;\r |
| | 570 | for DXE phase, it will ASSERT() since PEI HOB is read-only for DXE phase.\r |
| | 571 | \r |
| | 572 | If there is no additional space for HOB creation, then ASSERT().\r |
| | 573 | If the FvImage buffer is not at its required alignment, then ASSERT().\r |
| | 574 | \r |
| | 575 | @param BaseAddress The base address of the Firmware Volume.\r |
| | 576 | @param Length The size of the Firmware Volume in bytes.\r |
| | 577 | @param FvName The name of the Firmware Volume.\r |
| | 578 | @param FileName The name of the file.\r |
| | 579 | \r |
| | 580 | **/\r |
| | 581 | VOID\r |
| | 582 | EFIAPI\r |
| | 583 | BuildFv2Hob (\r |
| | 584 | IN EFI_PHYSICAL_ADDRESS BaseAddress,\r |
| | 585 | IN UINT64 Length,\r |
| | 586 | IN CONST EFI_GUID *FvName,\r |
| | 587 | IN CONST EFI_GUID *FileName\r |
| | 588 | )\r |
| | 589 | {\r |
| | 590 | EFI_HOB_FIRMWARE_VOLUME2 *Hob;\r |
| | 591 | \r |
| | 592 | if (!InternalCheckFvAlignment (BaseAddress, Length)) {\r |
| | 593 | ASSERT (FALSE);\r |
| | 594 | return;\r |
| | 595 | }\r |
| | 596 | \r |
| | 597 | Hob = InternalPeiCreateHob (EFI_HOB_TYPE_FV2, (UINT16) sizeof (EFI_HOB_FIRMWARE_VOLUME2));\r |
| | 598 | if (Hob == NULL) {\r |
| | 599 | return;\r |
| | 600 | }\r |
| | 601 | \r |
| | 602 | Hob->BaseAddress = BaseAddress;\r |
| | 603 | Hob->Length = Length;\r |
| | 604 | CopyGuid (&Hob->FvName, FvName);\r |
| | 605 | CopyGuid (&Hob->FileName, FileName);\r |
| | 606 | }\r |
| | 607 | \r |
| | 608 | /**\r |
| | 609 | Builds a EFI_HOB_TYPE_FV3 HOB.\r |
| | 610 | \r |
| | 611 | This function builds a EFI_HOB_TYPE_FV3 HOB.\r |
| | 612 | It can only be invoked during PEI phase;\r |
| | 613 | for DXE phase, it will ASSERT() since PEI HOB is read-only for DXE phase.\r |
| | 614 | \r |
| | 615 | If there is no additional space for HOB creation, then ASSERT().\r |
| | 616 | If the FvImage buffer is not at its required alignment, then ASSERT().\r |
| | 617 | \r |
| | 618 | @param BaseAddress The base address of the Firmware Volume.\r |
| | 619 | @param Length The size of the Firmware Volume in bytes.\r |
| | 620 | @param AuthenticationStatus The authentication status.\r |
| | 621 | @param ExtractedFv TRUE if the FV was extracted as a file within\r |
| | 622 | another firmware volume. FALSE otherwise.\r |
| | 623 | @param FvName The name of the Firmware Volume.\r |
| | 624 | Valid only if IsExtractedFv is TRUE.\r |
| | 625 | @param FileName The name of the file.\r |
| | 626 | Valid only if IsExtractedFv is TRUE.\r |
| | 627 | \r |
| | 628 | **/\r |
| | 629 | VOID\r |
| | 630 | EFIAPI\r |
| | 631 | BuildFv3Hob (\r |
| | 632 | IN EFI_PHYSICAL_ADDRESS BaseAddress,\r |
| | 633 | IN UINT64 Length,\r |
| | 634 | IN UINT32 AuthenticationStatus,\r |
| | 635 | IN BOOLEAN ExtractedFv,\r |
| | 636 | IN CONST EFI_GUID *FvName, OPTIONAL\r |
| | 637 | IN CONST EFI_GUID *FileName OPTIONAL\r |
| | 638 | )\r |
| | 639 | {\r |
| | 640 | EFI_HOB_FIRMWARE_VOLUME3 *Hob;\r |
| | 641 | \r |
| | 642 | if (!InternalCheckFvAlignment (BaseAddress, Length)) {\r |
| | 643 | ASSERT (FALSE);\r |
| | 644 | return;\r |
| | 645 | }\r |
| | 646 | \r |
| | 647 | Hob = InternalPeiCreateHob (EFI_HOB_TYPE_FV3, (UINT16) sizeof (EFI_HOB_FIRMWARE_VOLUME3));\r |
| | 648 | if (Hob == NULL) {\r |
| | 649 | return;\r |
| | 650 | }\r |
| | 651 | \r |
| | 652 | Hob->BaseAddress = BaseAddress;\r |
| | 653 | Hob->Length = Length;\r |
| | 654 | Hob->AuthenticationStatus = AuthenticationStatus;\r |
| | 655 | Hob->ExtractedFv = ExtractedFv;\r |
| | 656 | if (ExtractedFv) {\r |
| | 657 | CopyGuid (&Hob->FvName, FvName);\r |
| | 658 | CopyGuid (&Hob->FileName, FileName);\r |
| | 659 | }\r |
| | 660 | }\r |
| | 661 | \r |
| | 662 | /**\r |
| | 663 | Builds a Capsule Volume HOB.\r |
| | 664 | \r |
| | 665 | This function builds a Capsule Volume HOB.\r |
| | 666 | It can only be invoked during PEI phase;\r |
| | 667 | for DXE phase, it will ASSERT() since PEI HOB is read-only for DXE phase.\r |
| | 668 | \r |
| | 669 | If the platform does not support Capsule Volume HOBs, then ASSERT().\r |
| | 670 | If there is no additional space for HOB creation, then ASSERT().\r |
| | 671 | \r |
| | 672 | @param BaseAddress The base address of the Capsule Volume.\r |
| | 673 | @param Length The size of the Capsule Volume in bytes.\r |
| | 674 | \r |
| | 675 | **/\r |
| | 676 | VOID\r |
| | 677 | EFIAPI\r |
| | 678 | BuildCvHob (\r |
| | 679 | IN EFI_PHYSICAL_ADDRESS BaseAddress,\r |
| | 680 | IN UINT64 Length\r |
| | 681 | )\r |
| | 682 | {\r |
| | 683 | EFI_HOB_CAPSULE_VOLUME *Hob;\r |
| | 684 | \r |
| | 685 | Hob = InternalPeiCreateHob (EFI_HOB_TYPE_CV, (UINT16) sizeof (EFI_HOB_CAPSULE_VOLUME));\r |
| | 686 | if (Hob == NULL) {\r |
| | 687 | return;\r |
| | 688 | }\r |
| | 689 | \r |
| | 690 | Hob->BaseAddress = BaseAddress;\r |
| | 691 | Hob->Length = Length;\r |
| | 692 | }\r |
| | 693 | \r |
| | 694 | /**\r |
| | 695 | Builds a HOB for the CPU.\r |
| | 696 | \r |
| | 697 | This function builds a HOB for the CPU.\r |
| | 698 | It can only be invoked during PEI phase;\r |
| | 699 | for DXE phase, it will ASSERT() since PEI HOB is read-only for DXE phase.\r |
| | 700 | \r |
| | 701 | If there is no additional space for HOB creation, then ASSERT().\r |
| | 702 | \r |
| | 703 | @param SizeOfMemorySpace The maximum physical memory addressability of the processor.\r |
| | 704 | @param SizeOfIoSpace The maximum physical I/O addressability of the processor.\r |
| | 705 | \r |
| | 706 | **/\r |
| | 707 | VOID\r |
| | 708 | EFIAPI\r |
| | 709 | BuildCpuHob (\r |
| | 710 | IN UINT8 SizeOfMemorySpace,\r |
| | 711 | IN UINT8 SizeOfIoSpace\r |
| | 712 | )\r |
| | 713 | {\r |
| | 714 | EFI_HOB_CPU *Hob;\r |
| | 715 | \r |
| | 716 | Hob = InternalPeiCreateHob (EFI_HOB_TYPE_CPU, (UINT16) sizeof (EFI_HOB_CPU));\r |
| | 717 | if (Hob == NULL) {\r |
| | 718 | return;\r |
| | 719 | }\r |
| | 720 | \r |
| | 721 | Hob->SizeOfMemorySpace = SizeOfMemorySpace;\r |
| | 722 | Hob->SizeOfIoSpace = SizeOfIoSpace;\r |
| | 723 | \r |
| | 724 | //\r |
| | 725 | // Zero the reserved space to match HOB spec\r |
| | 726 | //\r |
| | 727 | ZeroMem (Hob->Reserved, sizeof (Hob->Reserved));\r |
| | 728 | }\r |
| | 729 | \r |
| | 730 | /**\r |
| | 731 | Builds a HOB for the Stack.\r |
| | 732 | \r |
| | 733 | This function builds a HOB for the stack.\r |
| | 734 | It can only be invoked during PEI phase;\r |
| | 735 | for DXE phase, it will ASSERT() since PEI HOB is read-only for DXE phase.\r |
| | 736 | \r |
| | 737 | If there is no additional space for HOB creation, then ASSERT().\r |
| | 738 | \r |
| | 739 | @param BaseAddress The 64 bit physical address of the Stack.\r |
| | 740 | @param Length The length of the stack in bytes.\r |
| | 741 | \r |
| | 742 | **/\r |
| | 743 | VOID\r |
| | 744 | EFIAPI\r |
| | 745 | BuildStackHob (\r |
| | 746 | IN EFI_PHYSICAL_ADDRESS BaseAddress,\r |
| | 747 | IN UINT64 Length\r |
| | 748 | )\r |
| | 749 | {\r |
| | 750 | EFI_HOB_MEMORY_ALLOCATION_STACK *Hob;\r |
| | 751 | \r |
| | 752 | ASSERT (((BaseAddress & (EFI_PAGE_SIZE - 1)) == 0) &&\r |
| | 753 | ((Length & (EFI_PAGE_SIZE - 1)) == 0));\r |
| | 754 | \r |
| | 755 | Hob = InternalPeiCreateHob (EFI_HOB_TYPE_MEMORY_ALLOCATION, (UINT16) sizeof (EFI_HOB_MEMORY_ALLOCATION_STACK));\r |
| | 756 | if (Hob == NULL) {\r |
| | 757 | return;\r |
| | 758 | }\r |
| | 759 | \r |
| | 760 | CopyGuid (&(Hob->AllocDescriptor.Name), &gEfiHobMemoryAllocStackGuid);\r |
| | 761 | Hob->AllocDescriptor.MemoryBaseAddress = BaseAddress;\r |
| | 762 | Hob->AllocDescriptor.MemoryLength = Length;\r |
| | 763 | Hob->AllocDescriptor.MemoryType = EfiBootServicesData;\r |
| | 764 | \r |
| | 765 | //\r |
| | 766 | // Zero the reserved space to match HOB spec\r |
| | 767 | //\r |
| | 768 | ZeroMem (Hob->AllocDescriptor.Reserved, sizeof (Hob->AllocDescriptor.Reserved));\r |
| | 769 | }\r |
| | 770 | \r |
| | 771 | /**\r |
| | 772 | Builds a HOB for the BSP store.\r |
| | 773 | \r |
| | 774 | This function builds a HOB for BSP store.\r |
| | 775 | It can only be invoked during PEI phase;\r |
| | 776 | for DXE phase, it will ASSERT() since PEI HOB is read-only for DXE phase.\r |
| | 777 | \r |
| | 778 | If there is no additional space for HOB creation, then ASSERT().\r |
| | 779 | \r |
| | 780 | @param BaseAddress The 64 bit physical address of the BSP.\r |
| | 781 | @param Length The length of the BSP store in bytes.\r |
| | 782 | @param MemoryType Type of memory allocated by this HOB.\r |
| | 783 | \r |
| | 784 | **/\r |
| | 785 | VOID\r |
| | 786 | EFIAPI\r |
| | 787 | BuildBspStoreHob (\r |
| | 788 | IN EFI_PHYSICAL_ADDRESS BaseAddress,\r |
| | 789 | IN UINT64 Length,\r |
| | 790 | IN EFI_MEMORY_TYPE MemoryType\r |
| | 791 | )\r |
| | 792 | {\r |
| | 793 | EFI_HOB_MEMORY_ALLOCATION_BSP_STORE *Hob;\r |
| | 794 | \r |
| | 795 | ASSERT (((BaseAddress & (EFI_PAGE_SIZE - 1)) == 0) &&\r |
| | 796 | ((Length & (EFI_PAGE_SIZE - 1)) == 0));\r |
| | 797 | \r |
| | 798 | Hob = InternalPeiCreateHob (EFI_HOB_TYPE_MEMORY_ALLOCATION, (UINT16) sizeof (EFI_HOB_MEMORY_ALLOCATION_BSP_STORE));\r |
| | 799 | if (Hob == NULL) {\r |
| | 800 | return;\r |
| | 801 | }\r |
| | 802 | \r |
| | 803 | CopyGuid (&(Hob->AllocDescriptor.Name), &gEfiHobMemoryAllocBspStoreGuid);\r |
| | 804 | Hob->AllocDescriptor.MemoryBaseAddress = BaseAddress;\r |
| | 805 | Hob->AllocDescriptor.MemoryLength = Length;\r |
| | 806 | Hob->AllocDescriptor.MemoryType = MemoryType;\r |
| | 807 | \r |
| | 808 | //\r |
| | 809 | // Zero the reserved space to match HOB spec\r |
| | 810 | //\r |
| | 811 | ZeroMem (Hob->AllocDescriptor.Reserved, sizeof (Hob->AllocDescriptor.Reserved));\r |
| | 812 | }\r |
| | 813 | \r |
| | 814 | /**\r |
| | 815 | Builds a HOB for the memory allocation.\r |
| | 816 | \r |
| | 817 | This function builds a HOB for the memory allocation.\r |
| | 818 | It can only be invoked during PEI phase;\r |
| | 819 | for DXE phase, it will ASSERT() since PEI HOB is read-only for DXE phase.\r |
| | 820 | \r |
| | 821 | If there is no additional space for HOB creation, then ASSERT().\r |
| | 822 | \r |
| | 823 | @param BaseAddress The 64 bit physical address of the memory.\r |
| | 824 | @param Length The length of the memory allocation in bytes.\r |
| | 825 | @param MemoryType Type of memory allocated by this HOB.\r |
| | 826 | \r |
| | 827 | **/\r |
| | 828 | VOID\r |
| | 829 | EFIAPI\r |
| | 830 | BuildMemoryAllocationHob (\r |
| | 831 | IN EFI_PHYSICAL_ADDRESS BaseAddress,\r |
| | 832 | IN UINT64 Length,\r |
| | 833 | IN EFI_MEMORY_TYPE MemoryType\r |
| | 834 | )\r |
| | 835 | {\r |
| | 836 | EFI_HOB_MEMORY_ALLOCATION *Hob;\r |
| | 837 | \r |
| | 838 | ASSERT (((BaseAddress & (EFI_PAGE_SIZE - 1)) == 0) &&\r |
| | 839 | ((Length & (EFI_PAGE_SIZE - 1)) == 0));\r |
| | 840 | \r |
| | 841 | Hob = InternalPeiCreateHob (EFI_HOB_TYPE_MEMORY_ALLOCATION, (UINT16) sizeof (EFI_HOB_MEMORY_ALLOCATION));\r |
| | 842 | if (Hob == NULL) {\r |
| | 843 | return;\r |
| | 844 | }\r |
| | 845 | \r |
| | 846 | ZeroMem (&(Hob->AllocDescriptor.Name), sizeof (EFI_GUID));\r |
| | 847 | Hob->AllocDescriptor.MemoryBaseAddress = BaseAddress;\r |
| | 848 | Hob->AllocDescriptor.MemoryLength = Length;\r |
| | 849 | Hob->AllocDescriptor.MemoryType = MemoryType;\r |
| | 850 | //\r |
| | 851 | // Zero the reserved space to match HOB spec\r |
| | 852 | //\r |
| | 853 | ZeroMem (Hob->AllocDescriptor.Reserved, sizeof (Hob->AllocDescriptor.Reserved));\r |
| | 854 | }\r |
projects / mirror_edk2.git / blame_incremental