+++ /dev/null
-/** @file\r
- HOB Library.\r
-\r
- Copyright (c) 2006 - 2007, Intel Corporation<BR>\r
- All rights reserved. This program and the accompanying materials\r
- are licensed and made available under the terms and conditions of the BSD License\r
- which accompanies this distribution. The full text of the license may be found at\r
- http://opensource.org/licenses/bsd-license.php\r
-\r
- THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r
- WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r
-\r
- Module Name: HobLib.c\r
-\r
-**/\r
-\r
-#include "HobLib.h"\r
-\r
-/**\r
- Returns the pointer to the HOB list.\r
-\r
- This function returns the pointer to first HOB in the list.\r
-\r
- @return The pointer to the HOB list.\r
-\r
-**/\r
-VOID *\r
-EFIAPI\r
-GetHobList (\r
- VOID\r
- )\r
-{\r
- return gHobList;\r
-}\r
-\r
-/**\r
- Returns the next instance of a HOB type from the starting HOB.\r
-\r
- This function searches the first instance of a HOB type from the starting HOB pointer. \r
- If there does not exist such HOB type from the starting HOB pointer, it will return NULL.\r
- In contrast with macro GET_NEXT_HOB(), this function does not skip the starting HOB pointer\r
- unconditionally: it returns HobStart back if HobStart itself meets the requirement;\r
- caller is required to use GET_NEXT_HOB() if it wishes to skip current HobStart.\r
- If HobStart is NULL, then ASSERT().\r
-\r
- @param Type The HOB type to return.\r
- @param HobStart The starting HOB pointer to search from.\r
-\r
- @return The next instance of a HOB type from the starting HOB.\r
-\r
-**/\r
-VOID *\r
-EFIAPI\r
-GetNextHob (\r
- IN UINT16 Type,\r
- IN CONST VOID *HobStart\r
- )\r
-{\r
- EFI_PEI_HOB_POINTERS Hob;\r
-\r
- ASSERT (HobStart != NULL);\r
- \r
- Hob.Raw = (UINT8 *) HobStart;\r
- //\r
- // Parse the HOB list until end of list or matching type is found.\r
- //\r
- while (!END_OF_HOB_LIST (Hob)) {\r
- if (Hob.Header->HobType == Type) {\r
- return Hob.Raw;\r
- }\r
- Hob.Raw = GET_NEXT_HOB (Hob);\r
- }\r
- return NULL;\r
-}\r
-\r
-/**\r
- Returns the first instance of a HOB type among the whole HOB list.\r
-\r
- This function searches the first instance of a HOB type among the whole HOB list. \r
- If there does not exist such HOB type in the HOB list, it will return NULL. \r
-\r
- @param Type The HOB type to return.\r
-\r
- @return The next instance of a HOB type from the starting HOB.\r
-\r
-**/\r
-VOID *\r
-EFIAPI\r
-GetFirstHob (\r
- IN UINT16 Type\r
- )\r
-{\r
- VOID *HobList;\r
-\r
- HobList = GetHobList ();\r
- return GetNextHob (Type, HobList);\r
-}\r
-\r
-/**\r
- This function searches the first instance of a HOB from the starting HOB pointer. \r
- Such HOB should satisfy two conditions: \r
- its HOB type is EFI_HOB_TYPE_GUID_EXTENSION and its GUID Name equals to the input Guid. \r
- If there does not exist such HOB from the starting HOB pointer, it will return NULL. \r
- Caller is required to apply GET_GUID_HOB_DATA () and GET_GUID_HOB_DATA_SIZE ()\r
- to extract the data section and its size info respectively.\r
- In contrast with macro GET_NEXT_HOB(), this function does not skip the starting HOB pointer\r
- unconditionally: it returns HobStart back if HobStart itself meets the requirement;\r
- caller is required to use GET_NEXT_HOB() if it wishes to skip current HobStart.\r
- If Guid is NULL, then ASSERT().\r
- If HobStart is NULL, then ASSERT().\r
-\r
- @param Guid The GUID to match with in the HOB list.\r
- @param HobStart A pointer to a Guid.\r
-\r
- @return The next instance of the matched GUID HOB from the starting HOB.\r
-\r
-**/\r
-VOID *\r
-EFIAPI\r
-GetNextGuidHob (\r
- IN CONST EFI_GUID *Guid,\r
- IN CONST VOID *HobStart\r
- )\r
-{\r
- EFI_PEI_HOB_POINTERS GuidHob;\r
-\r
- GuidHob.Raw = (UINT8 *) HobStart;\r
- while ((GuidHob.Raw = GetNextHob (EFI_HOB_TYPE_GUID_EXTENSION, GuidHob.Raw)) != NULL) {\r
- if (CompareGuid (Guid, &GuidHob.Guid->Name)) {\r
- break;\r
- }\r
- GuidHob.Raw = GET_NEXT_HOB (GuidHob);\r
- }\r
- return GuidHob.Raw;\r
-}\r
-\r
-/**\r
- This function searches the first instance of a HOB among the whole HOB list. \r
- Such HOB should satisfy two conditions:\r
- its HOB type is EFI_HOB_TYPE_GUID_EXTENSION and its GUID Name equals to the input Guid.\r
- If there does not exist such HOB from the starting HOB pointer, it will return NULL.\r
- Caller is required to apply GET_GUID_HOB_DATA () and GET_GUID_HOB_DATA_SIZE ()\r
- to extract the data section and its size info respectively.\r
- If Guid is NULL, then ASSERT().\r
-\r
- @param Guid The GUID to match with in the HOB list.\r
-\r
- @return The first instance of the matched GUID HOB among the whole HOB list.\r
-\r
-**/\r
-VOID *\r
-EFIAPI\r
-GetFirstGuidHob (\r
- IN CONST EFI_GUID *Guid\r
- )\r
-{\r
- VOID *HobList;\r
-\r
- HobList = GetHobList ();\r
- return GetNextGuidHob (Guid, HobList);\r
-}\r
-\r
-/**\r
- Get the Boot Mode from the HOB list.\r
-\r
- This function returns the system boot mode information from the \r
- PHIT HOB in HOB list.\r
-\r
- @param VOID\r
-\r
- @return The Boot Mode.\r
-\r
-**/\r
-EFI_BOOT_MODE\r
-EFIAPI\r
-GetBootModeHob (\r
- VOID\r
- )\r
-{\r
- EFI_HOB_HANDOFF_INFO_TABLE *HandOffHob;\r
-\r
- HandOffHob = (EFI_HOB_HANDOFF_INFO_TABLE *) GetHobList ();\r
-\r
- return HandOffHob->BootMode;\r
-}\r
-/**\r
- Builds a HOB for a loaded PE32 module.\r
-\r
- This function builds a HOB for a loaded PE32 module.\r
- It can only be invoked during PEI phase;\r
- for DXE phase, it will ASSERT() since PEI HOB is read-only for DXE phase.\r
- If ModuleName is NULL, then ASSERT().\r
- If there is no additional space for HOB creation, then ASSERT().\r
-\r
- @param ModuleName The GUID File Name of the module.\r
- @param MemoryAllocationModule The 64 bit physical address of the module.\r
- @param ModuleLength The length of the module in bytes.\r
- @param EntryPoint The 64 bit physical address of the module's entry point.\r
-\r
-**/\r
-VOID\r
-EFIAPI\r
-BuildModuleHob (\r
- IN CONST EFI_GUID *ModuleName,\r
- IN EFI_PHYSICAL_ADDRESS MemoryAllocationModule,\r
- IN UINT64 ModuleLength,\r
- IN EFI_PHYSICAL_ADDRESS EntryPoint\r
- )\r
-{\r
- //\r
- // PEI HOB is read only for DXE phase\r
- //\r
- ASSERT (FALSE);\r
-}\r
-\r
-/**\r
- Builds a HOB that describes a chunk of system memory.\r
-\r
- This function builds a HOB that describes a chunk of system memory.\r
- It can only be invoked during PEI phase;\r
- for DXE phase, it will ASSERT() since PEI HOB is read-only for DXE phase.\r
- If there is no additional space for HOB creation, then ASSERT().\r
-\r
- @param ResourceType The type of resource described by this HOB.\r
- @param ResourceAttribute The resource attributes of the memory described by this HOB.\r
- @param PhysicalStart The 64 bit physical address of memory described by this HOB.\r
- @param NumberOfBytes The length of the memory described by this HOB in bytes.\r
-\r
-**/\r
-VOID\r
-EFIAPI\r
-BuildResourceDescriptorHob (\r
- IN EFI_RESOURCE_TYPE ResourceType,\r
- IN EFI_RESOURCE_ATTRIBUTE_TYPE ResourceAttribute,\r
- IN EFI_PHYSICAL_ADDRESS PhysicalStart,\r
- IN UINT64 NumberOfBytes\r
- )\r
-{\r
- //\r
- // PEI HOB is read only for DXE phase\r
- //\r
- ASSERT (FALSE);\r
-}\r
-\r
-/**\r
- Builds a GUID HOB with a certain data length.\r
-\r
- This function builds a customized HOB tagged with a GUID for identification \r
- and returns the start address of GUID HOB data so that caller can fill the customized data. \r
- The HOB Header and Name field is already stripped.\r
- It can only be invoked during PEI phase;\r
- for DXE phase, it will ASSERT() since PEI HOB is read-only for DXE phase.\r
- If Guid is NULL, then ASSERT().\r
- If there is no additional space for HOB creation, then ASSERT().\r
- If DataLength >= (0x10000 - sizeof (EFI_HOB_GUID_TYPE)), then ASSERT().\r
-\r
- @param Guid The GUID to tag the customized HOB.\r
- @param DataLength The size of the data payload for the GUID HOB.\r
-\r
- @return The start address of GUID HOB data.\r
-\r
-**/\r
-VOID *\r
-EFIAPI\r
-BuildGuidHob (\r
- IN CONST EFI_GUID *Guid,\r
- IN UINTN DataLength\r
- )\r
-{\r
- //\r
- // PEI HOB is read only for DXE phase\r
- //\r
- ASSERT (FALSE);\r
- return NULL;\r
-}\r
-\r
-/**\r
- Copies a data buffer to a newly-built HOB.\r
-\r
- This function builds a customized HOB tagged with a GUID for identification,\r
- copies the input data to the HOB data field and returns the start address of the GUID HOB data.\r
- The HOB Header and Name field is already stripped.\r
- It can only be invoked during PEI phase;\r
- for DXE phase, it will ASSERT() since PEI HOB is read-only for DXE phase.\r
- If Guid is NULL, then ASSERT().\r
- If Data is NULL and DataLength > 0, then ASSERT().\r
- If there is no additional space for HOB creation, then ASSERT().\r
- If DataLength >= (0x10000 - sizeof (EFI_HOB_GUID_TYPE)), then ASSERT().\r
-\r
- @param Guid The GUID to tag the customized HOB.\r
- @param Data The data to be copied into the data field of the GUID HOB.\r
- @param DataLength The size of the data payload for the GUID HOB.\r
-\r
- @return The start address of GUID HOB data.\r
-\r
-**/\r
-VOID *\r
-EFIAPI\r
-BuildGuidDataHob (\r
- IN CONST EFI_GUID *Guid,\r
- IN VOID *Data,\r
- IN UINTN DataLength\r
- )\r
-{\r
- //\r
- // PEI HOB is read only for DXE phase\r
- //\r
- ASSERT (FALSE);\r
- return NULL;\r
-}\r
-\r
-/**\r
- Builds a Firmware Volume HOB.\r
-\r
- This function builds a Firmware Volume HOB.\r
- It can only be invoked during PEI phase;\r
- for DXE phase, it will ASSERT() since PEI HOB is read-only for DXE phase.\r
- If there is no additional space for HOB creation, then ASSERT().\r
-\r
- @param BaseAddress The base address of the Firmware Volume.\r
- @param Length The size of the Firmware Volume in bytes.\r
-\r
-**/\r
-VOID\r
-EFIAPI\r
-BuildFvHob (\r
- IN EFI_PHYSICAL_ADDRESS BaseAddress,\r
- IN UINT64 Length\r
- )\r
-{\r
- //\r
- // PEI HOB is read only for DXE phase\r
- //\r
- ASSERT (FALSE);\r
-}\r
-\r
-/**\r
- Builds a Capsule Volume HOB.\r
-\r
- This function builds a Capsule Volume HOB.\r
- It can only be invoked during PEI phase;\r
- for DXE phase, it will ASSERT() since PEI HOB is read-only for DXE phase.\r
- If there is no additional space for HOB creation, then ASSERT().\r
-\r
- @param BaseAddress The base address of the Capsule Volume.\r
- @param Length The size of the Capsule Volume in bytes.\r
-\r
-**/\r
-VOID\r
-EFIAPI\r
-BuildCvHob (\r
- IN EFI_PHYSICAL_ADDRESS BaseAddress,\r
- IN UINT64 Length\r
- )\r
-{\r
- //\r
- // PEI HOB is read only for DXE phase\r
- //\r
- ASSERT (FALSE);\r
-}\r
-\r
-/**\r
- Builds a HOB for the CPU.\r
-\r
- This function builds a HOB for the CPU.\r
- It can only be invoked during PEI phase;\r
- for DXE phase, it will ASSERT() since PEI HOB is read-only for DXE phase.\r
- If there is no additional space for HOB creation, then ASSERT().\r
-\r
- @param SizeOfMemorySpace The maximum physical memory addressability of the processor.\r
- @param SizeOfIoSpace The maximum physical I/O addressability of the processor.\r
-\r
-**/\r
-VOID\r
-EFIAPI\r
-BuildCpuHob (\r
- IN UINT8 SizeOfMemorySpace,\r
- IN UINT8 SizeOfIoSpace\r
- )\r
-{\r
- //\r
- // PEI HOB is read only for DXE phase\r
- //\r
- ASSERT (FALSE);\r
-}\r
-\r
-/**\r
- Builds a HOB for the Stack.\r
-\r
- This function builds a HOB for the stack.\r
- It can only be invoked during PEI phase;\r
- for DXE phase, it will ASSERT() since PEI HOB is read-only for DXE phase.\r
- If there is no additional space for HOB creation, then ASSERT().\r
-\r
- @param BaseAddress The 64 bit physical address of the Stack.\r
- @param Length The length of the stack in bytes.\r
-\r
-**/\r
-VOID\r
-EFIAPI\r
-BuildStackHob (\r
- IN EFI_PHYSICAL_ADDRESS BaseAddress,\r
- IN UINT64 Length\r
- )\r
-{\r
- //\r
- // PEI HOB is read only for DXE phase\r
- //\r
- ASSERT (FALSE);\r
-}\r
-\r
-/**\r
- Builds a HOB for the BSP store.\r
-\r
- This function builds a HOB for BSP store.\r
- It can only be invoked during PEI phase;\r
- for DXE phase, it will ASSERT() since PEI HOB is read-only for DXE phase.\r
- If there is no additional space for HOB creation, then ASSERT().\r
-\r
- @param BaseAddress The 64 bit physical address of the BSP.\r
- @param Length The length of the BSP store in bytes.\r
- @param MemoryType Type of memory allocated by this HOB.\r
-\r
-**/\r
-VOID\r
-EFIAPI\r
-BuildBspStoreHob (\r
- IN EFI_PHYSICAL_ADDRESS BaseAddress,\r
- IN UINT64 Length,\r
- IN EFI_MEMORY_TYPE MemoryType\r
- )\r
-{\r
- //\r
- // PEI HOB is read only for DXE phase\r
- //\r
- ASSERT (FALSE);\r
-}\r
-\r
-/**\r
- Builds a HOB for the memory allocation.\r
-\r
- This function builds a HOB for the memory allocation.\r
- It can only be invoked during PEI phase;\r
- for DXE phase, it will ASSERT() since PEI HOB is read-only for DXE phase.\r
- If there is no additional space for HOB creation, then ASSERT().\r
-\r
- @param BaseAddress The 64 bit physical address of the memory.\r
- @param Length The length of the memory allocation in bytes.\r
- @param MemoryType Type of memory allocated by this HOB.\r
-\r
-**/\r
-VOID\r
-EFIAPI\r
-BuildMemoryAllocationHob (\r
- IN EFI_PHYSICAL_ADDRESS BaseAddress,\r
- IN UINT64 Length,\r
- IN EFI_MEMORY_TYPE MemoryType\r
- )\r
-{\r
- //\r
- // PEI HOB is read only for DXE phase\r
- //\r
- ASSERT (FALSE);\r
-}\r
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