+++ /dev/null
-/*++\r
-\r
-Copyright (c) 2006, Intel Corporation \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:\r
-\r
- Hob.c\r
-\r
-Abstract:\r
-\r
- EFI PEI Core HOB services\r
-\r
---*/\r
-\r
-#include <PeiMain.h>\r
-\r
-EFI_STATUS\r
-EFIAPI\r
-PeiGetHobList (\r
- IN EFI_PEI_SERVICES **PeiServices,\r
- IN OUT VOID **HobList\r
- )\r
-/*++\r
-\r
-Routine Description:\r
-\r
- Gets the pointer to the HOB List.\r
-\r
-Arguments:\r
-\r
- PeiServices - The PEI core services table.\r
- HobList - Pointer to the HOB List.\r
-\r
-Returns:\r
-\r
- EFI_SUCCESS - Get the pointer of HOB List\r
- EFI_NOT_AVAILABLE_YET - the HOB List is not yet published\r
- EFI_INVALID_PARAMETER - HobList is NULL (in debug mode)\r
- \r
---*/\r
-{\r
- PEI_CORE_INSTANCE *PrivateData;\r
-\r
- \r
- //\r
- // Only check this parameter in debug mode\r
- //\r
- \r
- DEBUG_CODE_BEGIN (); \r
- if (HobList == NULL) {\r
- return EFI_INVALID_PARAMETER;\r
- }\r
- DEBUG_CODE_END ();\r
- \r
- PrivateData = PEI_CORE_INSTANCE_FROM_PS_THIS(PeiServices);\r
-\r
- *HobList = PrivateData->HobList.Raw;\r
-\r
-\r
- return EFI_SUCCESS; \r
-}\r
-\r
-\r
-EFI_STATUS\r
-EFIAPI\r
-PeiCreateHob (\r
- IN EFI_PEI_SERVICES **PeiServices,\r
- IN UINT16 Type,\r
- IN UINT16 Length,\r
- IN OUT VOID **Hob\r
- )\r
-/*++\r
-\r
-Routine Description:\r
-\r
- Add a new HOB to the HOB List.\r
-\r
-Arguments:\r
-\r
- PeiServices - The PEI core services table.\r
- Type - Type of the new HOB.\r
- Length - Length of the new HOB to allocate.\r
- Hob - Pointer to the new HOB.\r
-\r
-Returns:\r
-\r
- Status - EFI_SUCCESS\r
- - EFI_INVALID_PARAMETER if Hob is NULL\r
- - EFI_NOT_AVAILABLE_YET if HobList is still not available.\r
- - EFI_OUT_OF_RESOURCES if there is no more memory to grow the Hoblist.\r
- \r
---*/\r
-{\r
- EFI_STATUS Status;\r
- EFI_HOB_HANDOFF_INFO_TABLE *HandOffHob;\r
- EFI_HOB_GENERIC_HEADER *HobEnd;\r
- EFI_PHYSICAL_ADDRESS FreeMemory;\r
-\r
-\r
- Status = PeiGetHobList (PeiServices, Hob);\r
- if (EFI_ERROR(Status)) {\r
- return Status;\r
- }\r
-\r
- HandOffHob = *Hob;\r
-\r
- Length = (UINT16)((Length + 0x7) & (~0x7));\r
-\r
- FreeMemory = HandOffHob->EfiFreeMemoryTop -\r
- HandOffHob->EfiFreeMemoryBottom;\r
-\r
- if (FreeMemory < Length) {\r
- DEBUG ((EFI_D_ERROR, "PeiCreateHob fail: Length - 0x%08x\n", (UINTN)Length));\r
- DEBUG ((EFI_D_ERROR, " FreeMemoryTop - 0x%08x\n", (UINTN)HandOffHob->EfiFreeMemoryTop));\r
- DEBUG ((EFI_D_ERROR, " FreeMemoryBottom - 0x%08x\n", (UINTN)HandOffHob->EfiFreeMemoryBottom));\r
- return EFI_OUT_OF_RESOURCES;\r
- }\r
- \r
- *Hob = (VOID*) (UINTN) HandOffHob->EfiEndOfHobList;\r
- ((EFI_HOB_GENERIC_HEADER*) *Hob)->HobType = Type;\r
- ((EFI_HOB_GENERIC_HEADER*) *Hob)->HobLength = Length;\r
- ((EFI_HOB_GENERIC_HEADER*) *Hob)->Reserved = 0;\r
-\r
- HobEnd = (EFI_HOB_GENERIC_HEADER*) ((UINTN) *Hob + Length);\r
- HandOffHob->EfiEndOfHobList = (EFI_PHYSICAL_ADDRESS) (UINTN) HobEnd;\r
- \r
- HobEnd->HobType = EFI_HOB_TYPE_END_OF_HOB_LIST;\r
- HobEnd->HobLength = sizeof(EFI_HOB_GENERIC_HEADER);\r
- HobEnd->Reserved = 0;\r
- HobEnd++;\r
- HandOffHob->EfiFreeMemoryBottom = (EFI_PHYSICAL_ADDRESS) (UINTN) HobEnd;\r
-\r
-\r
- return EFI_SUCCESS; \r
-}\r
-\r
-\r
-EFI_STATUS\r
-PeiCoreBuildHobHandoffInfoTable (\r
- IN EFI_BOOT_MODE BootMode,\r
- IN EFI_PHYSICAL_ADDRESS MemoryBegin,\r
- IN UINT64 MemoryLength\r
- )\r
-/*++\r
-\r
-Routine Description:\r
-\r
- Builds a Handoff Information Table HOB\r
-\r
-Arguments:\r
-\r
- BootMode - Current Bootmode\r
- MemoryBegin - Start Memory Address.\r
- MemoryLength - Length of Memory.\r
-\r
-Returns:\r
-\r
- EFI_SUCCESS\r
-\r
---*/\r
-{\r
- EFI_HOB_HANDOFF_INFO_TABLE *Hob;\r
- EFI_HOB_GENERIC_HEADER *HobEnd;\r
-\r
- Hob = (VOID *)(UINTN)MemoryBegin;\r
- HobEnd = (EFI_HOB_GENERIC_HEADER*) (Hob+1);\r
- Hob->Header.HobType = EFI_HOB_TYPE_HANDOFF;\r
- Hob->Header.HobLength = sizeof(EFI_HOB_HANDOFF_INFO_TABLE);\r
- Hob->Header.Reserved = 0;\r
- \r
- HobEnd->HobType = EFI_HOB_TYPE_END_OF_HOB_LIST;\r
- HobEnd->HobLength = sizeof(EFI_HOB_GENERIC_HEADER);\r
- HobEnd->Reserved = 0;\r
-\r
- Hob->Version = EFI_HOB_HANDOFF_TABLE_VERSION;\r
- Hob->BootMode = BootMode;\r
- \r
- Hob->EfiMemoryTop = MemoryBegin + MemoryLength;\r
- Hob->EfiMemoryBottom = MemoryBegin;\r
- Hob->EfiFreeMemoryTop = MemoryBegin + MemoryLength;\r
- Hob->EfiFreeMemoryBottom = (EFI_PHYSICAL_ADDRESS) (UINTN) (HobEnd+1);\r
- Hob->EfiEndOfHobList = (EFI_PHYSICAL_ADDRESS) (UINTN) HobEnd;\r
-\r
- return EFI_SUCCESS;\r
-}\r
projects / mirror_edk2.git / blobdiff