mirror of https://github.com/acidanthera/audk.git
66 lines
2.3 KiB
C
66 lines
2.3 KiB
C
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/** @file
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Copyright (c) 2004 - 2014, Intel Corporation. All rights reserved.<BR>
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This program and the accompanying materials are licensed and made available under
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the terms and conditions of the BSD License that accompanies this distribution.
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The full text of the license may be found at
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http://opensource.org/licenses/bsd-license.php.
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THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
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WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
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Module Name:
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PlatformCpuInfoDxe.c
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Abstract:
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Platform Cpu Info driver to public platform related HOB data
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--*/
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#include "PlatformCpuInfoDxe.h"
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CHAR16 EfiPlatformCpuInfoVariable[] = L"PlatformCpuInfo";
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EFI_STATUS
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EFIAPI
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PlatformCpuInfoInit (
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IN EFI_HANDLE ImageHandle,
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IN EFI_SYSTEM_TABLE *SystemTable
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)
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{
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EFI_STATUS Status;
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EFI_PLATFORM_CPU_INFO *PlatformCpuInfoPtr;
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EFI_PEI_HOB_POINTERS GuidHob;
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//
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// Get Platform Cpu Info HOB
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//
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GuidHob.Raw = GetHobList ();
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while ((GuidHob.Raw = GetNextGuidHob (&gEfiPlatformCpuInfoGuid, GuidHob.Raw)) != NULL) {
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PlatformCpuInfoPtr = GET_GUID_HOB_DATA (GuidHob.Guid);
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GuidHob.Raw = GET_NEXT_HOB (GuidHob);
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//
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// Write the Platform CPU Info to volatile memory for runtime purposes.
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// This must be done in its own driver because SetVariable protocol is dependent on chipset,
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// which is dependent on CpuIo, PlatformInfo, and Metronome.
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//
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Status = gRT->SetVariable(
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EfiPlatformCpuInfoVariable,
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&gEfiVlv2VariableGuid,
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EFI_VARIABLE_BOOTSERVICE_ACCESS | EFI_VARIABLE_RUNTIME_ACCESS,
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sizeof(EFI_PLATFORM_CPU_INFO),
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PlatformCpuInfoPtr
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);
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if (EFI_ERROR(Status)) {
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return Status;
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}
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}
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return EFI_SUCCESS;
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}
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