/** @file
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Sample to provide FSP wrapper platform sec related function.
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@copyright
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Copyright (c) 2017 - 2021, 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 <Ppi/SecPlatformInformation.h>
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#include <Ppi/SecPerformance.h>
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#include <Ppi/PeiCoreFvLocation.h>
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#include <Library/LocalApicLib.h>
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#include <Library/DebugLib.h>
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#include <Library/BaseMemoryLib.h>
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/**
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This interface conveys state information out of the Security (SEC) phase into PEI.
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@param[in] PeiServices Pointer to the PEI Services Table.
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@param[in,out] StructureSize Pointer to the variable describing size of the input buffer.
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@param[out] PlatformInformationRecord Pointer to the EFI_SEC_PLATFORM_INFORMATION_RECORD.
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@retval EFI_SUCCESS The data was successfully returned.
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@retval EFI_BUFFER_TOO_SMALL The buffer was too small.
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**/
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EFI_STATUS
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EFIAPI
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SecPlatformInformation (
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IN CONST EFI_PEI_SERVICES **PeiServices,
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IN OUT UINT64 *StructureSize,
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OUT EFI_SEC_PLATFORM_INFORMATION_RECORD *PlatformInformationRecord
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);
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/**
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This interface conveys performance information out of the Security (SEC) phase into PEI.
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This service is published by the SEC phase. The SEC phase handoff has an optional
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EFI_PEI_PPI_DESCRIPTOR list as its final argument when control is passed from SEC into the
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PEI Foundation. As such, if the platform supports collecting performance data in SEC,
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this information is encapsulated into the data structure abstracted by this service.
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This information is collected for the boot-strap processor (BSP) on IA-32.
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@param[in] PeiServices The pointer to the PEI Services Table.
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@param[in] This The pointer to this instance of the PEI_SEC_PERFORMANCE_PPI.
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@param[out] Performance The pointer to performance data collected in SEC phase.
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@retval EFI_SUCCESS The data was successfully returned.
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**/
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EFI_STATUS
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EFIAPI
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SecGetPerformance (
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IN CONST EFI_PEI_SERVICES **PeiServices,
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IN PEI_SEC_PERFORMANCE_PPI *This,
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OUT FIRMWARE_SEC_PERFORMANCE *Performance
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);
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PEI_SEC_PERFORMANCE_PPI mSecPerformancePpi = {
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SecGetPerformance
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};
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EFI_PEI_CORE_FV_LOCATION_PPI mPeiCoreFvLocationPpi = {
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(VOID *) (UINTN) FixedPcdGet32 (PcdFlashFvPreMemoryBase)
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};
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EFI_PEI_PPI_DESCRIPTOR mPeiCoreFvLocationPpiList[] = {
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{
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EFI_PEI_PPI_DESCRIPTOR_PPI,
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&gEfiPeiCoreFvLocationPpiGuid,
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&mPeiCoreFvLocationPpi
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}
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};
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EFI_PEI_PPI_DESCRIPTOR mPeiSecPlatformPpi[] = {
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//
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// This must be the first PPI in the list because it will be patched in SecPlatformMain ();
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//
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{
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EFI_PEI_PPI_DESCRIPTOR_PPI | EFI_PEI_PPI_DESCRIPTOR_TERMINATE_LIST,
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&gTopOfTemporaryRamPpiGuid,
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NULL
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}
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};
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/**
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A developer supplied function to perform platform specific operations.
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It's a developer supplied function to perform any operations appropriate to a
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given platform. It's invoked just before passing control to PEI core by SEC
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core. Platform developer may modify the SecCoreData passed to PEI Core.
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It returns a platform specific PPI list that platform wishes to pass to PEI core.
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The Generic SEC core module will merge this list to join the final list passed to
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PEI core.
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@param[in,out] SecCoreData The same parameter as passing to PEI core. It
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could be overridden by this function.
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@return The platform specific PPI list to be passed to PEI core or
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NULL if there is no need of such platform specific PPI list.
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**/
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EFI_PEI_PPI_DESCRIPTOR *
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EFIAPI
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SecPlatformMain (
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IN OUT EFI_SEC_PEI_HAND_OFF *SecCoreData
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)
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{
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EFI_PEI_PPI_DESCRIPTOR *PpiList;
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UINT8 TopOfTemporaryRamPpiIndex;
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UINT8 *CopyDestinationPointer;
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UINTN ReservedSize;
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DEBUG((DEBUG_INFO, "SecPlatformMain\n"));
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ReservedSize = ALIGN_VALUE (PcdGet32 (PcdPeiTemporaryRamRcHeapSize), SIZE_4KB);
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ReservedSize += ALIGN_VALUE (PcdGet32 (PcdFspTemporaryRamSize), SIZE_4KB);
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SecCoreData->PeiTemporaryRamBase = (UINT8 *) SecCoreData->PeiTemporaryRamBase + ReservedSize;
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SecCoreData->PeiTemporaryRamSize -= ReservedSize;
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DEBUG ((DEBUG_INFO, "FSP Wrapper BootFirmwareVolumeBase - 0x%x\n", SecCoreData->BootFirmwareVolumeBase));
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DEBUG ((DEBUG_INFO, "FSP Wrapper BootFirmwareVolumeSize - 0x%x\n", SecCoreData->BootFirmwareVolumeSize));
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DEBUG ((DEBUG_INFO, "FSP Wrapper TemporaryRamBase - 0x%x\n", SecCoreData->TemporaryRamBase));
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DEBUG ((DEBUG_INFO, "FSP Wrapper TemporaryRamSize - 0x%x\n", SecCoreData->TemporaryRamSize));
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DEBUG ((DEBUG_INFO, "FSP Wrapper PeiTemporaryRamBase - 0x%x\n", SecCoreData->PeiTemporaryRamBase));
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DEBUG ((DEBUG_INFO, "FSP Wrapper PeiTemporaryRamSize - 0x%x\n", SecCoreData->PeiTemporaryRamSize));
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DEBUG ((DEBUG_INFO, "FSP Wrapper StackBase - 0x%x\n", SecCoreData->StackBase));
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DEBUG ((DEBUG_INFO, "FSP Wrapper StackSize - 0x%x\n", SecCoreData->StackSize));
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InitializeApicTimer (0, (UINT32) -1, TRUE, 5);
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//
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// Use middle of Heap as temp buffer, it will be copied by caller.
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// Do not use Stack, because it will cause wrong calculation on stack by PeiCore
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//
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PpiList = (VOID *)((UINTN) SecCoreData->PeiTemporaryRamBase + (UINTN) SecCoreData->PeiTemporaryRamSize/2);
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CopyDestinationPointer = (UINT8 *) PpiList;
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TopOfTemporaryRamPpiIndex = 0;
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if ((PcdGet8 (PcdFspModeSelection) == 0) && PcdGetBool (PcdFspDispatchModeUseFspPeiMain)) {
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//
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// In Dispatch mode, wrapper should provide PeiCoreFvLocationPpi.
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//
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CopyMem (CopyDestinationPointer, mPeiCoreFvLocationPpiList, sizeof (mPeiCoreFvLocationPpiList));
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TopOfTemporaryRamPpiIndex = 1;
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CopyDestinationPointer += sizeof (mPeiCoreFvLocationPpiList);
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}
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CopyMem (CopyDestinationPointer, mPeiSecPlatformPpi, sizeof (mPeiSecPlatformPpi));
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//
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// Patch TopOfTemporaryRamPpi
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//
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PpiList[TopOfTemporaryRamPpiIndex].Ppi = (VOID *)((UINTN) SecCoreData->TemporaryRamBase + SecCoreData->TemporaryRamSize);
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return PpiList;
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}
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