ArmPkg: Replace BSD License with BSD+Patent License

[mirror_edk2.git] / ArmPkg / Drivers / CpuDxe / CpuMpCore.c

/** @file\r
*\r
*  Copyright (c) 2011-2014, ARM Limited. All rights reserved.\r
*\r
*  SPDX-License-Identifier: BSD-2-Clause-Patent\r
*\r
**/\r
\r
#include <Library/UefiBootServicesTableLib.h>\r
#include <Library/BaseMemoryLib.h>\r
#include <Library/HobLib.h>\r
#include <Library/DebugLib.h>\r
#include <Library/MemoryAllocationLib.h>\r
\r
#include <Guid/ArmMpCoreInfo.h>\r
\r
ARM_PROCESSOR_TABLE mArmProcessorTableTemplate = {\r
  {\r
    EFI_ARM_PROCESSOR_TABLE_SIGNATURE,\r
    0,\r
    EFI_ARM_PROCESSOR_TABLE_REVISION,\r
    EFI_ARM_PROCESSOR_TABLE_OEM_ID,\r
    EFI_ARM_PROCESSOR_TABLE_OEM_TABLE_ID,\r
    EFI_ARM_PROCESSOR_TABLE_OEM_REVISION,\r
    EFI_ARM_PROCESSOR_TABLE_CREATOR_ID,\r
    EFI_ARM_PROCESSOR_TABLE_CREATOR_REVISION,\r
    { 0 },\r
    0\r
  },   //ARM Processor table header\r
  0,   // Number of entries in ARM processor Table\r
  NULL // ARM Processor Table\r
};\r
\r
/** Publish ARM Processor Data table in UEFI SYSTEM Table.\r
 * @param:  HobStart               Pointer to the beginning of the HOB List from PEI.\r
 *\r
 * Description : This function iterates through HOB list and finds ARM processor Table Entry HOB.\r
 *               If  the ARM processor Table Entry HOB is found, the HOB data is copied to run-time memory\r
 *               and a pointer is assigned to it in ARM processor table. Then the ARM processor table is\r
 *               installed in EFI configuration table.\r
**/\r
VOID\r
EFIAPI\r
PublishArmProcessorTable (\r
  VOID\r
  )\r
{\r
  EFI_PEI_HOB_POINTERS    Hob;\r
\r
  Hob.Raw = GetHobList ();\r
\r
  // Iterate through the HOBs and find if there is ARM PROCESSOR ENTRY HOB\r
  for (; !END_OF_HOB_LIST(Hob); Hob.Raw = GET_NEXT_HOB(Hob)) {\r
    // Check for Correct HOB type\r
    if ((GET_HOB_TYPE (Hob)) == EFI_HOB_TYPE_GUID_EXTENSION) {\r
      // Check for correct GUID type\r
      if (CompareGuid(&(Hob.Guid->Name), &gArmMpCoreInfoGuid)) {\r
        ARM_PROCESSOR_TABLE     *ArmProcessorTable;\r
        EFI_STATUS              Status;\r
\r
        // Allocate Runtime memory for ARM processor table\r
        ArmProcessorTable = (ARM_PROCESSOR_TABLE*)AllocateRuntimePool(sizeof(ARM_PROCESSOR_TABLE));\r
\r
        // Check if the memory allocation is succesful or not\r
        ASSERT(NULL != ArmProcessorTable);\r
\r
        // Set ARM processor table to default values\r
        CopyMem(ArmProcessorTable,&mArmProcessorTableTemplate,sizeof(ARM_PROCESSOR_TABLE));\r
\r
        // Fill in Length fields of ARM processor table\r
        ArmProcessorTable->Header.Length = sizeof(ARM_PROCESSOR_TABLE);\r
        ArmProcessorTable->Header.DataLen = GET_GUID_HOB_DATA_SIZE(Hob);\r
\r
        // Fill in Identifier(ARM processor table GUID)\r
        ArmProcessorTable->Header.Identifier = gArmMpCoreInfoGuid;\r
\r
        // Set Number of ARM core entries in the Table\r
        ArmProcessorTable->NumberOfEntries = GET_GUID_HOB_DATA_SIZE(Hob)/sizeof(ARM_CORE_INFO);\r
\r
        // Allocate runtime memory for ARM processor Table entries\r
        ArmProcessorTable->ArmCpus = (ARM_CORE_INFO*)AllocateRuntimePool (\r
           ArmProcessorTable->NumberOfEntries * sizeof(ARM_CORE_INFO));\r
\r
        // Check if the memory allocation is succesful or not\r
        ASSERT(NULL != ArmProcessorTable->ArmCpus);\r
\r
        // Copy ARM Processor Table data from HOB list to newly allocated memory\r
        CopyMem(ArmProcessorTable->ArmCpus,GET_GUID_HOB_DATA(Hob), ArmProcessorTable->Header.DataLen);\r
\r
        // Install the ARM Processor table into EFI system configuration table\r
        Status = gBS->InstallConfigurationTable (&gArmMpCoreInfoGuid, ArmProcessorTable);\r
\r
        ASSERT_EFI_ERROR (Status);\r
      }\r
    }\r
  }\r
}\r