/** @file
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Build FV related hobs for platform.
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Copyright (c) 2006 - 2019 Intel Corporation. All rights reserved. <BR>
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SPDX-License-Identifier: BSD-2-Clause-Patent
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**/
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#include "PiPei.h"
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#include <Library/DebugLib.h>
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#include <Library/HobLib.h>
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#include <Library/PeiServicesLib.h>
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#include <Library/PcdLib.h>
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BOOLEAN mS3Supported = TRUE;
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/**
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Publish PEI & DXE (Decompressed) Memory based FVs to let PEI
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and DXE know about them.
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@retval EFI_SUCCESS Platform PEI FVs were initialized successfully.
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**/
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EFI_STATUS
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PeiFvInitialization (
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VOID
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)
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{
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BOOLEAN SecureS3Needed;
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DEBUG ((EFI_D_INFO, "Platform PEI Firmware Volume Initialization\n"));
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DEBUG (
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(EFI_D_ERROR, "Firmware Volume HOB: 0x%x 0x%x\n",
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PcdGet32 (PcdSimicsPeiMemFvBase),
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PcdGet32 (PcdSimicsPeiMemFvSize)
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)
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);
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//
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// Create a memory allocation HOB for the PEI FV.
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//
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// Allocate as ACPI NVS is S3 is supported
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//
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BuildMemoryAllocationHob (
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PcdGet32 (PcdSimicsPeiMemFvBase),
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PcdGet32 (PcdSimicsPeiMemFvSize),
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mS3Supported ? EfiACPIMemoryNVS : EfiBootServicesData
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);
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//
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// Let DXE know about the DXE FV
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//
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BuildFvHob (PcdGet32 (PcdSimicsDxeMemFvBase), PcdGet32 (PcdSimicsDxeMemFvSize));
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SecureS3Needed = mS3Supported && FeaturePcdGet (PcdSmmSmramRequire);
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//
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// Create a memory allocation HOB for the DXE FV.
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//
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// If "secure" S3 is needed, then SEC will decompress both PEI and DXE
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// firmware volumes at S3 resume too, hence we need to keep away the OS from
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// DXEFV as well. Otherwise we only need to keep away DXE itself from the
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// DXEFV area.
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//
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BuildMemoryAllocationHob (
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PcdGet32 (PcdSimicsDxeMemFvBase),
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PcdGet32 (PcdSimicsDxeMemFvSize),
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SecureS3Needed ? EfiACPIMemoryNVS : EfiBootServicesData
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);
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//
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// Additionally, said decompression will use temporary memory above the end
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// of DXEFV, so let's keep away the OS from there too.
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//
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if (SecureS3Needed) {
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UINT32 DxeMemFvEnd;
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DxeMemFvEnd = PcdGet32 (PcdSimicsDxeMemFvBase) +
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PcdGet32 (PcdSimicsDxeMemFvSize);
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BuildMemoryAllocationHob (
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DxeMemFvEnd,
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PcdGet32 (PcdSimicsDecompressionScratchEnd) - DxeMemFvEnd,
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EfiACPIMemoryNVS
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);
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}
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//
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// Let PEI know about the DXE FV so it can find the DXE Core
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//
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PeiServicesInstallFvInfoPpi (
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NULL,
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(VOID *)(UINTN) PcdGet32 (PcdSimicsDxeMemFvBase),
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PcdGet32 (PcdSimicsDxeMemFvSize),
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NULL,
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NULL
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);
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return EFI_SUCCESS;
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}
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