mirror of https://github.com/acidanthera/audk.git
98 lines
3.5 KiB
C
98 lines
3.5 KiB
C
/** @file
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*
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* Copyright (c) 2011-2021, Arm Limited. All rights reserved.<BR>
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*
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* SPDX-License-Identifier: BSD-2-Clause-Patent
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*
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**/
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#include <Library/UefiBootServicesTableLib.h>
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#include <Library/BaseMemoryLib.h>
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#include <Library/HobLib.h>
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#include <Library/DebugLib.h>
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#include <Library/MemoryAllocationLib.h>
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#include <Guid/ArmMpCoreInfo.h>
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ARM_PROCESSOR_TABLE mArmProcessorTableTemplate = {
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{
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EFI_ARM_PROCESSOR_TABLE_SIGNATURE,
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0,
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EFI_ARM_PROCESSOR_TABLE_REVISION,
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EFI_ARM_PROCESSOR_TABLE_OEM_ID,
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EFI_ARM_PROCESSOR_TABLE_OEM_TABLE_ID,
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EFI_ARM_PROCESSOR_TABLE_OEM_REVISION,
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EFI_ARM_PROCESSOR_TABLE_CREATOR_ID,
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EFI_ARM_PROCESSOR_TABLE_CREATOR_REVISION,
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{ 0 },
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0
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}, //ARM Processor table header
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0, // Number of entries in ARM processor Table
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NULL // ARM Processor Table
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};
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/** Publish ARM Processor Data table in UEFI SYSTEM Table.
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* @param HobStart Pointer to the beginning of the HOB List from PEI.
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*
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* Description : This function iterates through HOB list and finds ARM processor Table Entry HOB.
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* If the ARM processor Table Entry HOB is found, the HOB data is copied to run-time memory
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* and a pointer is assigned to it in ARM processor table. Then the ARM processor table is
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* installed in EFI configuration table.
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**/
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VOID
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EFIAPI
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PublishArmProcessorTable (
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VOID
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)
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{
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EFI_PEI_HOB_POINTERS Hob;
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Hob.Raw = GetHobList ();
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// Iterate through the HOBs and find if there is ARM PROCESSOR ENTRY HOB
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for (; !END_OF_HOB_LIST(Hob); Hob.Raw = GET_NEXT_HOB(Hob)) {
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// Check for Correct HOB type
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if ((GET_HOB_TYPE (Hob)) == EFI_HOB_TYPE_GUID_EXTENSION) {
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// Check for correct GUID type
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if (CompareGuid(&(Hob.Guid->Name), &gArmMpCoreInfoGuid)) {
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ARM_PROCESSOR_TABLE *ArmProcessorTable;
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EFI_STATUS Status;
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// Allocate Runtime memory for ARM processor table
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ArmProcessorTable = (ARM_PROCESSOR_TABLE*)AllocateRuntimePool(sizeof(ARM_PROCESSOR_TABLE));
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// Check if the memory allocation is successful or not
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ASSERT(NULL != ArmProcessorTable);
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// Set ARM processor table to default values
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CopyMem(ArmProcessorTable,&mArmProcessorTableTemplate,sizeof(ARM_PROCESSOR_TABLE));
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// Fill in Length fields of ARM processor table
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ArmProcessorTable->Header.Length = sizeof(ARM_PROCESSOR_TABLE);
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ArmProcessorTable->Header.DataLen = GET_GUID_HOB_DATA_SIZE(Hob);
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// Fill in Identifier(ARM processor table GUID)
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ArmProcessorTable->Header.Identifier = gArmMpCoreInfoGuid;
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// Set Number of ARM core entries in the Table
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ArmProcessorTable->NumberOfEntries = GET_GUID_HOB_DATA_SIZE(Hob)/sizeof(ARM_CORE_INFO);
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// Allocate runtime memory for ARM processor Table entries
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ArmProcessorTable->ArmCpus = (ARM_CORE_INFO*)AllocateRuntimePool (
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ArmProcessorTable->NumberOfEntries * sizeof(ARM_CORE_INFO));
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// Check if the memory allocation is successful or not
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ASSERT(NULL != ArmProcessorTable->ArmCpus);
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// Copy ARM Processor Table data from HOB list to newly allocated memory
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CopyMem(ArmProcessorTable->ArmCpus,GET_GUID_HOB_DATA(Hob), ArmProcessorTable->Header.DataLen);
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// Install the ARM Processor table into EFI system configuration table
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Status = gBS->InstallConfigurationTable (&gArmMpCoreInfoGuid, ArmProcessorTable);
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ASSERT_EFI_ERROR (Status);
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}
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}
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}
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}
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