1 /** @file 2 * 3 * Copyright (c) 2011-2014, ARM Limited. All rights reserved. 4 * 5 * This program and the accompanying materials 6 * are licensed and made available under the terms and conditions of the BSD License 7 * which accompanies this distribution. The full text of the license may be found at 8 * http://opensource.org/licenses/bsd-license.php 9 * 10 * THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, 11 * WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. 12 * 13 **/ 14 15 #include <Library/UefiBootServicesTableLib.h> 16 #include <Library/BaseMemoryLib.h> 17 #include <Library/HobLib.h> 18 #include <Library/DebugLib.h> 19 #include <Library/MemoryAllocationLib.h> 20 21 #include <Guid/ArmMpCoreInfo.h> 22 23 ARM_PROCESSOR_TABLE mArmProcessorTableTemplate = { 24 { 25 EFI_ARM_PROCESSOR_TABLE_SIGNATURE, 26 0, 27 EFI_ARM_PROCESSOR_TABLE_REVISION, 28 EFI_ARM_PROCESSOR_TABLE_OEM_ID, 29 EFI_ARM_PROCESSOR_TABLE_OEM_TABLE_ID, 30 EFI_ARM_PROCESSOR_TABLE_OEM_REVISION, 31 EFI_ARM_PROCESSOR_TABLE_CREATOR_ID, 32 EFI_ARM_PROCESSOR_TABLE_CREATOR_REVISION, 33 { 0 }, 34 0 35 }, //ARM Processor table header 36 0, // Number of entries in ARM processor Table 37 NULL // ARM Processor Table 38 }; 39 40 /** Publish ARM Processor Data table in UEFI SYSTEM Table. 41 * @param: HobStart Pointer to the beginning of the HOB List from PEI. 42 * 43 * Description : This function iterates through HOB list and finds ARM processor Table Entry HOB. 44 * If the ARM processor Table Entry HOB is found, the HOB data is copied to run-time memory 45 * and a pointer is assigned to it in ARM processor table. Then the ARM processor table is 46 * installed in EFI configuration table. 47 **/ 48 VOID 49 EFIAPI 50 PublishArmProcessorTable ( 51 VOID 52 ) 53 { 54 EFI_PEI_HOB_POINTERS Hob; 55 56 Hob.Raw = GetHobList (); 57 58 // Iterate through the HOBs and find if there is ARM PROCESSOR ENTRY HOB 59 for (; !END_OF_HOB_LIST(Hob); Hob.Raw = GET_NEXT_HOB(Hob)) { 60 // Check for Correct HOB type 61 if ((GET_HOB_TYPE (Hob)) == EFI_HOB_TYPE_GUID_EXTENSION) { 62 // Check for correct GUID type 63 if (CompareGuid(&(Hob.Guid->Name), &gArmMpCoreInfoGuid)) { 64 ARM_PROCESSOR_TABLE *ArmProcessorTable; 65 EFI_STATUS Status; 66 67 // Allocate Runtime memory for ARM processor table 68 ArmProcessorTable = (ARM_PROCESSOR_TABLE*)AllocateRuntimePool(sizeof(ARM_PROCESSOR_TABLE)); 69 70 // Check if the memory allocation is succesful or not 71 ASSERT(NULL != ArmProcessorTable); 72 73 // Set ARM processor table to default values 74 CopyMem(ArmProcessorTable,&mArmProcessorTableTemplate,sizeof(ARM_PROCESSOR_TABLE)); 75 76 // Fill in Length fields of ARM processor table 77 ArmProcessorTable->Header.Length = sizeof(ARM_PROCESSOR_TABLE); 78 ArmProcessorTable->Header.DataLen = GET_GUID_HOB_DATA_SIZE(Hob); 79 80 // Fill in Identifier(ARM processor table GUID) 81 ArmProcessorTable->Header.Identifier = gArmMpCoreInfoGuid; 82 83 // Set Number of ARM core entries in the Table 84 ArmProcessorTable->NumberOfEntries = GET_GUID_HOB_DATA_SIZE(Hob)/sizeof(ARM_CORE_INFO); 85 86 // Allocate runtime memory for ARM processor Table entries 87 ArmProcessorTable->ArmCpus = (ARM_CORE_INFO*)AllocateRuntimePool ( 88 ArmProcessorTable->NumberOfEntries * sizeof(ARM_CORE_INFO)); 89 90 // Check if the memory allocation is succesful or not 91 ASSERT(NULL != ArmProcessorTable->ArmCpus); 92 93 // Copy ARM Processor Table data from HOB list to newly allocated memory 94 CopyMem(ArmProcessorTable->ArmCpus,GET_GUID_HOB_DATA(Hob), ArmProcessorTable->Header.DataLen); 95 96 // Install the ARM Processor table into EFI system configuration table 97 Status = gBS->InstallConfigurationTable (&gArmMpCoreInfoGuid, ArmProcessorTable); 98 99 ASSERT_EFI_ERROR (Status); 100 } 101 } 102 } 103 } 104
