/** @file | |
* | |
* Copyright (c) 2011-2014, ARM Limited. All rights reserved. | |
* | |
* This program and the accompanying materials | |
* are licensed and made available under the terms and conditions of the BSD License | |
* which accompanies this distribution. The full text of the license may be found at | |
* http://opensource.org/licenses/bsd-license.php | |
* | |
* THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, | |
* WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. | |
* | |
**/ | |
#include <Library/UefiBootServicesTableLib.h> | |
#include <Library/BaseMemoryLib.h> | |
#include <Library/HobLib.h> | |
#include <Library/DebugLib.h> | |
#include <Library/MemoryAllocationLib.h> | |
#include <Guid/ArmMpCoreInfo.h> | |
ARM_PROCESSOR_TABLE mArmProcessorTableTemplate = { | |
{ | |
EFI_ARM_PROCESSOR_TABLE_SIGNATURE, | |
0, | |
EFI_ARM_PROCESSOR_TABLE_REVISION, | |
EFI_ARM_PROCESSOR_TABLE_OEM_ID, | |
EFI_ARM_PROCESSOR_TABLE_OEM_TABLE_ID, | |
EFI_ARM_PROCESSOR_TABLE_OEM_REVISION, | |
EFI_ARM_PROCESSOR_TABLE_CREATOR_ID, | |
EFI_ARM_PROCESSOR_TABLE_CREATOR_REVISION, | |
{ 0 }, | |
0 | |
}, //ARM Processor table header | |
0, // Number of entries in ARM processor Table | |
NULL // ARM Processor Table | |
}; | |
/** Publish ARM Processor Data table in UEFI SYSTEM Table. | |
* @param: HobStart Pointer to the beginning of the HOB List from PEI. | |
* | |
* Description : This function iterates through HOB list and finds ARM processor Table Entry HOB. | |
* If the ARM processor Table Entry HOB is found, the HOB data is copied to run-time memory | |
* and a pointer is assigned to it in ARM processor table. Then the ARM processor table is | |
* installed in EFI configuration table. | |
**/ | |
VOID | |
EFIAPI | |
PublishArmProcessorTable ( | |
VOID | |
) | |
{ | |
EFI_PEI_HOB_POINTERS Hob; | |
Hob.Raw = GetHobList (); | |
// Iterate through the HOBs and find if there is ARM PROCESSOR ENTRY HOB | |
for (; !END_OF_HOB_LIST(Hob); Hob.Raw = GET_NEXT_HOB(Hob)) { | |
// Check for Correct HOB type | |
if ((GET_HOB_TYPE (Hob)) == EFI_HOB_TYPE_GUID_EXTENSION) { | |
// Check for correct GUID type | |
if (CompareGuid(&(Hob.Guid->Name), &gArmMpCoreInfoGuid)) { | |
ARM_PROCESSOR_TABLE *ArmProcessorTable; | |
EFI_STATUS Status; | |
// Allocate Runtime memory for ARM processor table | |
ArmProcessorTable = (ARM_PROCESSOR_TABLE*)AllocateRuntimePool(sizeof(ARM_PROCESSOR_TABLE)); | |
// Check if the memory allocation is succesful or not | |
ASSERT(NULL != ArmProcessorTable); | |
// Set ARM processor table to default values | |
CopyMem(ArmProcessorTable,&mArmProcessorTableTemplate,sizeof(ARM_PROCESSOR_TABLE)); | |
// Fill in Length fields of ARM processor table | |
ArmProcessorTable->Header.Length = sizeof(ARM_PROCESSOR_TABLE); | |
ArmProcessorTable->Header.DataLen = GET_GUID_HOB_DATA_SIZE(Hob); | |
// Fill in Identifier(ARM processor table GUID) | |
ArmProcessorTable->Header.Identifier = gArmMpCoreInfoGuid; | |
// Set Number of ARM core entries in the Table | |
ArmProcessorTable->NumberOfEntries = GET_GUID_HOB_DATA_SIZE(Hob)/sizeof(ARM_CORE_INFO); | |
// Allocate runtime memory for ARM processor Table entries | |
ArmProcessorTable->ArmCpus = (ARM_CORE_INFO*)AllocateRuntimePool ( | |
ArmProcessorTable->NumberOfEntries * sizeof(ARM_CORE_INFO)); | |
// Check if the memory allocation is succesful or not | |
ASSERT(NULL != ArmProcessorTable->ArmCpus); | |
// Copy ARM Processor Table data from HOB list to newly allocated memory | |
CopyMem(ArmProcessorTable->ArmCpus,GET_GUID_HOB_DATA(Hob), ArmProcessorTable->Header.DataLen); | |
// Install the ARM Processor table into EFI system configuration table | |
Status = gBS->InstallConfigurationTable (&gArmMpCoreInfoGuid, ArmProcessorTable); | |
ASSERT_EFI_ERROR (Status); | |
} | |
} | |
} | |
} |