| /** @file | |
| All Pcd Ppi services are implemented here. | |
| Copyright (c) 2006 - 2021, Intel Corporation. All rights reserved.<BR> | |
| (C) Copyright 2016 Hewlett Packard Enterprise Development LP<BR> | |
| SPDX-License-Identifier: BSD-2-Clause-Patent | |
| **/ | |
| #include "Service.h" | |
| /// | |
| /// Instance of PCD_PPI protocol is EDKII native implementation. | |
| /// This protocol instance support dynamic and dynamicEx type PCDs. | |
| /// | |
| PCD_PPI mPcdPpiInstance = { | |
| PeiPcdSetSku, | |
| PeiPcdGet8, | |
| PeiPcdGet16, | |
| PeiPcdGet32, | |
| PeiPcdGet64, | |
| PeiPcdGetPtr, | |
| PeiPcdGetBool, | |
| PeiPcdGetSize, | |
| PeiPcdGet8Ex, | |
| PeiPcdGet16Ex, | |
| PeiPcdGet32Ex, | |
| PeiPcdGet64Ex, | |
| PeiPcdGetPtrEx, | |
| PeiPcdGetBoolEx, | |
| PeiPcdGetSizeEx, | |
| PeiPcdSet8, | |
| PeiPcdSet16, | |
| PeiPcdSet32, | |
| PeiPcdSet64, | |
| PeiPcdSetPtr, | |
| PeiPcdSetBool, | |
| PeiPcdSet8Ex, | |
| PeiPcdSet16Ex, | |
| PeiPcdSet32Ex, | |
| PeiPcdSet64Ex, | |
| PeiPcdSetPtrEx, | |
| PeiPcdSetBoolEx, | |
| PeiRegisterCallBackOnSet, | |
| PcdUnRegisterCallBackOnSet, | |
| PeiPcdGetNextToken, | |
| PeiPcdGetNextTokenSpace | |
| }; | |
| /// | |
| /// Instance of EFI_PEI_PCD_PPI which is defined in PI 1.2 Vol 3. | |
| /// This PPI instance only support dyanmicEx type PCD. | |
| /// | |
| EFI_PEI_PCD_PPI mEfiPcdPpiInstance = { | |
| PeiPcdSetSku, | |
| PeiPcdGet8Ex, | |
| PeiPcdGet16Ex, | |
| PeiPcdGet32Ex, | |
| PeiPcdGet64Ex, | |
| PeiPcdGetPtrEx, | |
| PeiPcdGetBoolEx, | |
| PeiPcdGetSizeEx, | |
| PeiPcdSet8Ex, | |
| PeiPcdSet16Ex, | |
| PeiPcdSet32Ex, | |
| PeiPcdSet64Ex, | |
| PeiPcdSetPtrEx, | |
| PeiPcdSetBoolEx, | |
| (EFI_PEI_PCD_PPI_CALLBACK_ON_SET)PeiRegisterCallBackOnSet, | |
| (EFI_PEI_PCD_PPI_CANCEL_CALLBACK)PcdUnRegisterCallBackOnSet, | |
| PeiPcdGetNextToken, | |
| PeiPcdGetNextTokenSpace | |
| }; | |
| /// | |
| /// Instance of GET_PCD_INFO_PPI protocol is EDKII native implementation. | |
| /// This protocol instance support dynamic and dynamicEx type PCDs. | |
| /// | |
| GET_PCD_INFO_PPI mGetPcdInfoInstance = { | |
| PeiGetPcdInfoGetInfo, | |
| PeiGetPcdInfoGetInfoEx, | |
| PeiGetPcdInfoGetSku | |
| }; | |
| /// | |
| /// Instance of EFI_GET_PCD_INFO_PPI which is defined in PI 1.2.1 Vol 3. | |
| /// This PPI instance only support dyanmicEx type PCD. | |
| /// | |
| EFI_GET_PCD_INFO_PPI mEfiGetPcdInfoInstance = { | |
| PeiGetPcdInfoGetInfoEx, | |
| PeiGetPcdInfoGetSku | |
| }; | |
| EFI_PEI_PPI_DESCRIPTOR mPpiList[] = { | |
| { | |
| EFI_PEI_PPI_DESCRIPTOR_PPI, | |
| &gPcdPpiGuid, | |
| &mPcdPpiInstance | |
| }, | |
| { | |
| (EFI_PEI_PPI_DESCRIPTOR_PPI | EFI_PEI_PPI_DESCRIPTOR_TERMINATE_LIST), | |
| &gEfiPeiPcdPpiGuid, | |
| &mEfiPcdPpiInstance | |
| } | |
| }; | |
| EFI_PEI_PPI_DESCRIPTOR mPpiList2[] = { | |
| { | |
| EFI_PEI_PPI_DESCRIPTOR_PPI, | |
| &gGetPcdInfoPpiGuid, | |
| &mGetPcdInfoInstance | |
| }, | |
| { | |
| (EFI_PEI_PPI_DESCRIPTOR_PPI | EFI_PEI_PPI_DESCRIPTOR_TERMINATE_LIST), | |
| &gEfiGetPcdInfoPpiGuid, | |
| &mEfiGetPcdInfoInstance | |
| } | |
| }; | |
| /** | |
| Callback on SET PcdSetNvStoreDefaultId | |
| Once PcdSetNvStoreDefaultId is set, the default NV storage will be found from | |
| PcdNvStoreDefaultValueBuffer, and built into VariableHob. | |
| @param[in] CallBackGuid The PCD token GUID being set. | |
| @param[in] CallBackToken The PCD token number being set. | |
| @param[in, out] TokenData A pointer to the token data being set. | |
| @param[in] TokenDataSize The size, in bytes, of the data being set. | |
| **/ | |
| VOID | |
| EFIAPI | |
| PcdSetNvStoreDefaultIdCallBack ( | |
| IN CONST EFI_GUID *CallBackGuid OPTIONAL, | |
| IN UINTN CallBackToken, | |
| IN OUT VOID *TokenData, | |
| IN UINTN TokenDataSize | |
| ) | |
| { | |
| EFI_STATUS Status; | |
| UINT16 DefaultId; | |
| SKU_ID SkuId; | |
| UINTN FullSize; | |
| UINTN Index; | |
| UINT8 *DataBuffer; | |
| UINT8 *VarStoreHobData; | |
| UINT8 *BufferEnd; | |
| BOOLEAN IsFound; | |
| VARIABLE_STORE_HEADER *NvStoreBuffer; | |
| PCD_DEFAULT_DATA *DataHeader; | |
| PCD_DEFAULT_INFO *DefaultInfo; | |
| PCD_DATA_DELTA *DeltaData; | |
| DefaultId = *(UINT16 *)TokenData; | |
| SkuId = GetPcdDatabase ()->SystemSkuId; | |
| IsFound = FALSE; | |
| if (PeiPcdGetSizeEx (&gEfiMdeModulePkgTokenSpaceGuid, PcdToken (PcdNvStoreDefaultValueBuffer)) > sizeof (PCD_NV_STORE_DEFAULT_BUFFER_HEADER)) { | |
| DataBuffer = (UINT8 *)PeiPcdGetPtrEx (&gEfiMdeModulePkgTokenSpaceGuid, PcdToken (PcdNvStoreDefaultValueBuffer)); | |
| FullSize = ((PCD_NV_STORE_DEFAULT_BUFFER_HEADER *)DataBuffer)->Length; | |
| DataHeader = (PCD_DEFAULT_DATA *)(DataBuffer + sizeof (PCD_NV_STORE_DEFAULT_BUFFER_HEADER)); | |
| // | |
| // The first section data includes NV storage default setting. | |
| // | |
| NvStoreBuffer = (VARIABLE_STORE_HEADER *)((UINT8 *)DataHeader + sizeof (DataHeader->DataSize) + DataHeader->HeaderSize); | |
| VarStoreHobData = (UINT8 *)BuildGuidHob (&NvStoreBuffer->Signature, NvStoreBuffer->Size); | |
| ASSERT (VarStoreHobData != NULL); | |
| CopyMem (VarStoreHobData, NvStoreBuffer, NvStoreBuffer->Size); | |
| // | |
| // Find the matched SkuId and DefaultId in the first section | |
| // | |
| DefaultInfo = &(DataHeader->DefaultInfo[0]); | |
| BufferEnd = (UINT8 *)DataHeader + sizeof (DataHeader->DataSize) + DataHeader->HeaderSize; | |
| while ((UINT8 *)DefaultInfo < BufferEnd) { | |
| if ((DefaultInfo->DefaultId == DefaultId) && (DefaultInfo->SkuId == SkuId)) { | |
| IsFound = TRUE; | |
| break; | |
| } | |
| DefaultInfo++; | |
| } | |
| // | |
| // Find the matched SkuId and DefaultId in the remaining section | |
| // | |
| Index = sizeof (PCD_NV_STORE_DEFAULT_BUFFER_HEADER) + ((DataHeader->DataSize + 7) & (~7)); | |
| DataHeader = (PCD_DEFAULT_DATA *)(DataBuffer + Index); | |
| while (!IsFound && Index < FullSize && DataHeader->DataSize != 0xFFFFFFFF) { | |
| DefaultInfo = &(DataHeader->DefaultInfo[0]); | |
| BufferEnd = (UINT8 *)DataHeader + sizeof (DataHeader->DataSize) + DataHeader->HeaderSize; | |
| while ((UINT8 *)DefaultInfo < BufferEnd) { | |
| if ((DefaultInfo->DefaultId == DefaultId) && (DefaultInfo->SkuId == SkuId)) { | |
| IsFound = TRUE; | |
| break; | |
| } | |
| DefaultInfo++; | |
| } | |
| if (IsFound) { | |
| DeltaData = (PCD_DATA_DELTA *)BufferEnd; | |
| BufferEnd = (UINT8 *)DataHeader + DataHeader->DataSize; | |
| while ((UINT8 *)DeltaData < BufferEnd) { | |
| *(VarStoreHobData + DeltaData->Offset) = (UINT8)DeltaData->Value; | |
| DeltaData++; | |
| } | |
| break; | |
| } | |
| Index = (Index + DataHeader->DataSize + 7) & (~7); | |
| DataHeader = (PCD_DEFAULT_DATA *)(DataBuffer + Index); | |
| } | |
| } | |
| Status = PcdUnRegisterCallBackOnSet ( | |
| &gEfiMdeModulePkgTokenSpaceGuid, | |
| PcdToken (PcdSetNvStoreDefaultId), | |
| PcdSetNvStoreDefaultIdCallBack | |
| ); | |
| ASSERT_EFI_ERROR (Status); | |
| } | |
| /** | |
| Report Pei PCD database of all SKUs as Guid HOB so that DxePcd can access it. | |
| @param PeiServices An indirect pointer to the EFI_PEI_SERVICES table published by the PEI Foundation | |
| @param NotifyDescriptor Address of the notification descriptor data structure. | |
| @param Ppi Address of the PPI that was installed. | |
| @retval EFI_SUCCESS Successfully update the Boot records. | |
| **/ | |
| EFI_STATUS | |
| EFIAPI | |
| EndOfPeiSignalPpiNotifyCallback ( | |
| IN EFI_PEI_SERVICES **PeiServices, | |
| IN EFI_PEI_NOTIFY_DESCRIPTOR *NotifyDescriptor, | |
| IN VOID *Ppi | |
| ) | |
| { | |
| PEI_PCD_DATABASE *Database; | |
| EFI_BOOT_MODE BootMode; | |
| EFI_STATUS Status; | |
| UINTN Instance; | |
| EFI_PEI_FV_HANDLE VolumeHandle; | |
| EFI_PEI_FILE_HANDLE FileHandle; | |
| VOID *PcdDb; | |
| UINT32 Length; | |
| PEI_PCD_DATABASE *PeiPcdDb; | |
| Status = PeiServicesGetBootMode (&BootMode); | |
| ASSERT_EFI_ERROR (Status); | |
| // | |
| // Don't need to report it on S3 boot. | |
| // | |
| if (BootMode == BOOT_ON_S3_RESUME) { | |
| return EFI_SUCCESS; | |
| } | |
| PeiPcdDb = GetPcdDatabase (); | |
| if (PeiPcdDb->SystemSkuId != (SKU_ID)0) { | |
| // | |
| // SkuId has been set. Don't need to report it to DXE phase. | |
| // | |
| return EFI_SUCCESS; | |
| } | |
| // | |
| // Get full PCD database from PcdPeim FileHandle | |
| // | |
| Instance = 0; | |
| FileHandle = NULL; | |
| while (TRUE) { | |
| // | |
| // Traverse all firmware volume instances | |
| // | |
| Status = PeiServicesFfsFindNextVolume (Instance, &VolumeHandle); | |
| // | |
| // Error should not happen | |
| // | |
| ASSERT_EFI_ERROR (Status); | |
| // | |
| // Find PcdDb file from the beginning in this firmware volume. | |
| // | |
| FileHandle = NULL; | |
| Status = PeiServicesFfsFindFileByName (&gEfiCallerIdGuid, VolumeHandle, &FileHandle); | |
| if (!EFI_ERROR (Status)) { | |
| // | |
| // Find PcdPeim FileHandle in this volume | |
| // | |
| break; | |
| } | |
| // | |
| // We cannot find PcdPeim in this firmware volume, then search the next volume. | |
| // | |
| Instance++; | |
| } | |
| // | |
| // Find PEI PcdDb and Build second PcdDB GuidHob | |
| // | |
| Status = PeiServicesFfsFindSectionData (EFI_SECTION_RAW, FileHandle, &PcdDb); | |
| ASSERT_EFI_ERROR (Status); | |
| Length = PeiPcdDb->LengthForAllSkus; | |
| Database = BuildGuidHob (&gPcdDataBaseHobGuid, Length); | |
| CopyMem (Database, PcdDb, Length); | |
| return EFI_SUCCESS; | |
| } | |
| EFI_PEI_NOTIFY_DESCRIPTOR mEndOfPeiSignalPpiNotifyList[] = { | |
| { | |
| (EFI_PEI_PPI_DESCRIPTOR_NOTIFY_CALLBACK | EFI_PEI_PPI_DESCRIPTOR_TERMINATE_LIST), | |
| &gEfiEndOfPeiSignalPpiGuid, | |
| EndOfPeiSignalPpiNotifyCallback | |
| } | |
| }; | |
| /** | |
| Main entry for PCD PEIM driver. | |
| This routine initialize the PCD database for PEI phase and install PCD_PPI/EFI_PEI_PCD_PPI. | |
| @param FileHandle Handle of the file being invoked. | |
| @param PeiServices Describes the list of possible PEI Services. | |
| @return Status of install PCD_PPI | |
| **/ | |
| EFI_STATUS | |
| EFIAPI | |
| PcdPeimInit ( | |
| IN EFI_PEI_FILE_HANDLE FileHandle, | |
| IN CONST EFI_PEI_SERVICES **PeiServices | |
| ) | |
| { | |
| EFI_STATUS Status; | |
| Status = PeiServicesRegisterForShadow (FileHandle); | |
| if (Status == EFI_ALREADY_STARTED) { | |
| // | |
| // This is now starting in memory, the second time starting. | |
| // | |
| EFI_PEI_PPI_DESCRIPTOR *OldPpiList; | |
| EFI_PEI_PPI_DESCRIPTOR *OldPpiList2; | |
| VOID *Ppi; | |
| VOID *Ppi2; | |
| OldPpiList = NULL; | |
| Status = PeiServicesLocatePpi ( | |
| &gPcdPpiGuid, | |
| 0, | |
| &OldPpiList, | |
| &Ppi | |
| ); | |
| ASSERT_EFI_ERROR (Status); | |
| if (OldPpiList != NULL) { | |
| Status = PeiServicesReInstallPpi (OldPpiList, &mPpiList[0]); | |
| ASSERT_EFI_ERROR (Status); | |
| } | |
| OldPpiList2 = NULL; | |
| Status = PeiServicesLocatePpi ( | |
| &gGetPcdInfoPpiGuid, | |
| 0, | |
| &OldPpiList2, | |
| &Ppi2 | |
| ); | |
| ASSERT_EFI_ERROR (Status); | |
| if (OldPpiList2 != NULL) { | |
| Status = PeiServicesReInstallPpi (OldPpiList2, &mPpiList2[0]); | |
| ASSERT_EFI_ERROR (Status); | |
| } | |
| OldPpiList = NULL; | |
| Status = PeiServicesLocatePpi ( | |
| &gEfiPeiPcdPpiGuid, | |
| 0, | |
| &OldPpiList, | |
| &Ppi | |
| ); | |
| ASSERT_EFI_ERROR (Status); | |
| if (OldPpiList != NULL) { | |
| Status = PeiServicesReInstallPpi (OldPpiList, &mPpiList[1]); | |
| ASSERT_EFI_ERROR (Status); | |
| } | |
| OldPpiList2 = NULL; | |
| Status = PeiServicesLocatePpi ( | |
| &gEfiGetPcdInfoPpiGuid, | |
| 0, | |
| &OldPpiList2, | |
| &Ppi2 | |
| ); | |
| ASSERT_EFI_ERROR (Status); | |
| if (OldPpiList2 != NULL) { | |
| Status = PeiServicesReInstallPpi (OldPpiList2, &mPpiList2[1]); | |
| ASSERT_EFI_ERROR (Status); | |
| } | |
| return Status; | |
| } | |
| BuildPcdDatabase (FileHandle); | |
| // | |
| // Install PCD_PPI and EFI_PEI_PCD_PPI. | |
| // | |
| Status = PeiServicesInstallPpi (&mPpiList[0]); | |
| ASSERT_EFI_ERROR (Status); | |
| // | |
| // Install GET_PCD_INFO_PPI and EFI_GET_PCD_INFO_PPI. | |
| // | |
| Status = PeiServicesInstallPpi (&mPpiList2[0]); | |
| ASSERT_EFI_ERROR (Status); | |
| Status = PeiServicesNotifyPpi (&mEndOfPeiSignalPpiNotifyList[0]); | |
| ASSERT_EFI_ERROR (Status); | |
| Status = PeiRegisterCallBackOnSet ( | |
| &gEfiMdeModulePkgTokenSpaceGuid, | |
| PcdToken (PcdSetNvStoreDefaultId), | |
| PcdSetNvStoreDefaultIdCallBack | |
| ); | |
| ASSERT_EFI_ERROR (Status); | |
| return Status; | |
| } | |
| /** | |
| Retrieve additional information associated with a PCD token in the default token space. | |
| This includes information such as the type of value the TokenNumber is associated with as well as possible | |
| human readable name that is associated with the token. | |
| @param[in] TokenNumber The PCD token number. | |
| @param[out] PcdInfo The returned information associated with the requested TokenNumber. | |
| The caller is responsible for freeing the buffer that is allocated by callee for PcdInfo->PcdName. | |
| @retval EFI_SUCCESS The PCD information was returned successfully. | |
| @retval EFI_NOT_FOUND The PCD service could not find the requested token number. | |
| **/ | |
| EFI_STATUS | |
| EFIAPI | |
| PeiGetPcdInfoGetInfo ( | |
| IN UINTN TokenNumber, | |
| OUT EFI_PCD_INFO *PcdInfo | |
| ) | |
| { | |
| return PeiGetPcdInfo (NULL, TokenNumber, PcdInfo); | |
| } | |
| /** | |
| Retrieve additional information associated with a PCD token. | |
| This includes information such as the type of value the TokenNumber is associated with as well as possible | |
| human readable name that is associated with the token. | |
| @param[in] Guid The 128-bit unique value that designates the namespace from which to extract the value. | |
| @param[in] TokenNumber The PCD token number. | |
| @param[out] PcdInfo The returned information associated with the requested TokenNumber. | |
| The caller is responsible for freeing the buffer that is allocated by callee for PcdInfo->PcdName. | |
| @retval EFI_SUCCESS The PCD information was returned successfully. | |
| @retval EFI_NOT_FOUND The PCD service could not find the requested token number. | |
| **/ | |
| EFI_STATUS | |
| EFIAPI | |
| PeiGetPcdInfoGetInfoEx ( | |
| IN CONST EFI_GUID *Guid, | |
| IN UINTN TokenNumber, | |
| OUT EFI_PCD_INFO *PcdInfo | |
| ) | |
| { | |
| return PeiGetPcdInfo (Guid, TokenNumber, PcdInfo); | |
| } | |
| /** | |
| Retrieve the currently set SKU Id. | |
| @return The currently set SKU Id. If the platform has not set at a SKU Id, then the | |
| default SKU Id value of 0 is returned. If the platform has set a SKU Id, then the currently set SKU | |
| Id is returned. | |
| **/ | |
| UINTN | |
| EFIAPI | |
| PeiGetPcdInfoGetSku ( | |
| VOID | |
| ) | |
| { | |
| return (UINTN)GetPcdDatabase ()->SystemSkuId; | |
| } | |
| /** | |
| Sets the SKU value for subsequent calls to set or get PCD token values. | |
| SetSku() sets the SKU Id to be used for subsequent calls to set or get PCD values. | |
| SetSku() is normally called only once by the system. | |
| For each item (token), the database can hold a single value that applies to all SKUs, | |
| or multiple values, where each value is associated with a specific SKU Id. Items with multiple, | |
| SKU-specific values are called SKU enabled. | |
| The SKU Id of zero is reserved as a default. | |
| For tokens that are not SKU enabled, the system ignores any set SKU Id and works with the | |
| single value for that token. For SKU-enabled tokens, the system will use the SKU Id set by the | |
| last call to SetSku(). If no SKU Id is set or the currently set SKU Id isn't valid for the specified token, | |
| the system uses the default SKU Id. If the system attempts to use the default SKU Id and no value has been | |
| set for that Id, the results are unpredictable. | |
| @param[in] SkuId The SKU value that will be used when the PCD service will retrieve and | |
| set values associated with a PCD token. | |
| **/ | |
| VOID | |
| EFIAPI | |
| PeiPcdSetSku ( | |
| IN UINTN SkuId | |
| ) | |
| { | |
| PEI_PCD_DATABASE *PeiPcdDb; | |
| SKU_ID *SkuIdTable; | |
| UINTN Index; | |
| EFI_STATUS Status; | |
| UINTN Instance; | |
| EFI_PEI_FV_HANDLE VolumeHandle; | |
| EFI_PEI_FILE_HANDLE FileHandle; | |
| VOID *PcdDb; | |
| UINT32 Length; | |
| PCD_DATABASE_SKU_DELTA *SkuDelta; | |
| PCD_DATA_DELTA *SkuDeltaData; | |
| DEBUG ((DEBUG_INFO, "PcdPei - SkuId 0x%lx is to be set.\n", (SKU_ID)SkuId)); | |
| PeiPcdDb = GetPcdDatabase (); | |
| if (SkuId == PeiPcdDb->SystemSkuId) { | |
| // | |
| // The input SKU Id is equal to current SKU Id, return directly. | |
| // | |
| DEBUG ((DEBUG_INFO, "PcdPei - SkuId is same to current system Sku.\n")); | |
| return; | |
| } | |
| if (PeiPcdDb->SystemSkuId != (SKU_ID)0) { | |
| DEBUG ((DEBUG_ERROR, "PcdPei - The SKU Id could be changed only once.")); | |
| DEBUG (( | |
| DEBUG_ERROR, | |
| "PcdPei - The SKU Id was set to 0x%lx already, it could not be set to 0x%lx any more.", | |
| PeiPcdDb->SystemSkuId, | |
| (SKU_ID)SkuId | |
| )); | |
| ASSERT (FALSE); | |
| return; | |
| } | |
| SkuIdTable = (SKU_ID *)((UINT8 *)PeiPcdDb + PeiPcdDb->SkuIdTableOffset); | |
| for (Index = 0; Index < SkuIdTable[0]; Index++) { | |
| if (SkuId == SkuIdTable[Index + 1]) { | |
| DEBUG ((DEBUG_INFO, "PcdPei - SkuId is found in SkuId table.\n")); | |
| break; | |
| } | |
| } | |
| if (Index < SkuIdTable[0]) { | |
| // | |
| // Get full PCD database from PcdPeim FileHandle | |
| // | |
| Instance = 0; | |
| FileHandle = NULL; | |
| while (TRUE) { | |
| // | |
| // Traverse all firmware volume instances | |
| // | |
| Status = PeiServicesFfsFindNextVolume (Instance, &VolumeHandle); | |
| // | |
| // Error should not happen | |
| // | |
| ASSERT_EFI_ERROR (Status); | |
| // | |
| // Find PcdDb file from the beginning in this firmware volume. | |
| // | |
| FileHandle = NULL; | |
| Status = PeiServicesFfsFindFileByName (&gEfiCallerIdGuid, VolumeHandle, &FileHandle); | |
| if (!EFI_ERROR (Status)) { | |
| // | |
| // Find PcdPeim FileHandle in this volume | |
| // | |
| break; | |
| } | |
| // | |
| // We cannot find PcdPeim in this firmware volume, then search the next volume. | |
| // | |
| Instance++; | |
| } | |
| // | |
| // Find the delta data between the different Skus | |
| // | |
| Status = PeiServicesFfsFindSectionData (EFI_SECTION_RAW, FileHandle, &PcdDb); | |
| ASSERT_EFI_ERROR (Status); | |
| Length = PeiPcdDb->LengthForAllSkus; | |
| Index = (PeiPcdDb->Length + 7) & (~7); | |
| SkuDelta = NULL; | |
| while (Index < Length) { | |
| SkuDelta = (PCD_DATABASE_SKU_DELTA *)((UINT8 *)PcdDb + Index); | |
| if ((SkuDelta->SkuId == SkuId) && (SkuDelta->SkuIdCompared == 0)) { | |
| break; | |
| } | |
| Index = (Index + SkuDelta->Length + 7) & (~7); | |
| } | |
| // | |
| // Patch the delta data into current PCD database | |
| // | |
| if ((Index < Length) && (SkuDelta != NULL)) { | |
| SkuDeltaData = (PCD_DATA_DELTA *)(SkuDelta + 1); | |
| while ((UINT8 *)SkuDeltaData < (UINT8 *)SkuDelta + SkuDelta->Length) { | |
| *((UINT8 *)PeiPcdDb + SkuDeltaData->Offset) = (UINT8)SkuDeltaData->Value; | |
| SkuDeltaData++; | |
| } | |
| PeiPcdDb->SystemSkuId = (SKU_ID)SkuId; | |
| DEBUG ((DEBUG_INFO, "PcdPei - Set current SKU Id to 0x%lx.\n", (SKU_ID)SkuId)); | |
| return; | |
| } | |
| } | |
| // | |
| // Invalid input SkuId, the default SKU Id will be still used for the system. | |
| // | |
| DEBUG ((DEBUG_ERROR, "PcdPei - Invalid input SkuId, the default SKU Id will be still used.\n")); | |
| return; | |
| } | |
| /** | |
| Retrieves an 8-bit value for a given PCD token. | |
| Retrieves the current byte-sized value for a PCD token number. | |
| If the TokenNumber is invalid, the results are unpredictable. | |
| @param[in] TokenNumber The PCD token number. | |
| @return The UINT8 value. | |
| **/ | |
| UINT8 | |
| EFIAPI | |
| PeiPcdGet8 ( | |
| IN UINTN TokenNumber | |
| ) | |
| { | |
| return *((UINT8 *)GetWorker (TokenNumber, sizeof (UINT8))); | |
| } | |
| /** | |
| Retrieves an 16-bit value for a given PCD token. | |
| Retrieves the current 16-bits value for a PCD token number. | |
| If the TokenNumber is invalid, the results are unpredictable. | |
| @param[in] TokenNumber The PCD token number. | |
| @return The UINT16 value. | |
| **/ | |
| UINT16 | |
| EFIAPI | |
| PeiPcdGet16 ( | |
| IN UINTN TokenNumber | |
| ) | |
| { | |
| return ReadUnaligned16 (GetWorker (TokenNumber, sizeof (UINT16))); | |
| } | |
| /** | |
| Retrieves an 32-bit value for a given PCD token. | |
| Retrieves the current 32-bits value for a PCD token number. | |
| If the TokenNumber is invalid, the results are unpredictable. | |
| @param[in] TokenNumber The PCD token number. | |
| @return The UINT32 value. | |
| **/ | |
| UINT32 | |
| EFIAPI | |
| PeiPcdGet32 ( | |
| IN UINTN TokenNumber | |
| ) | |
| { | |
| return ReadUnaligned32 (GetWorker (TokenNumber, sizeof (UINT32))); | |
| } | |
| /** | |
| Retrieves an 64-bit value for a given PCD token. | |
| Retrieves the current 64-bits value for a PCD token number. | |
| If the TokenNumber is invalid, the results are unpredictable. | |
| @param[in] TokenNumber The PCD token number. | |
| @return The UINT64 value. | |
| **/ | |
| UINT64 | |
| EFIAPI | |
| PeiPcdGet64 ( | |
| IN UINTN TokenNumber | |
| ) | |
| { | |
| return ReadUnaligned64 (GetWorker (TokenNumber, sizeof (UINT64))); | |
| } | |
| /** | |
| Retrieves a pointer to a value for a given PCD token. | |
| Retrieves the current pointer to the buffer for a PCD token number. | |
| Do not make any assumptions about the alignment of the pointer that | |
| is returned by this function call. If the TokenNumber is invalid, | |
| the results are unpredictable. | |
| @param[in] TokenNumber The PCD token number. | |
| @return The pointer to the buffer to be retrieved. | |
| **/ | |
| VOID * | |
| EFIAPI | |
| PeiPcdGetPtr ( | |
| IN UINTN TokenNumber | |
| ) | |
| { | |
| return GetWorker (TokenNumber, 0); | |
| } | |
| /** | |
| Retrieves a Boolean value for a given PCD token. | |
| Retrieves the current boolean value for a PCD token number. | |
| Do not make any assumptions about the alignment of the pointer that | |
| is returned by this function call. If the TokenNumber is invalid, | |
| the results are unpredictable. | |
| @param[in] TokenNumber The PCD token number. | |
| @return The Boolean value. | |
| **/ | |
| BOOLEAN | |
| EFIAPI | |
| PeiPcdGetBool ( | |
| IN UINTN TokenNumber | |
| ) | |
| { | |
| return *((BOOLEAN *)GetWorker (TokenNumber, sizeof (BOOLEAN))); | |
| } | |
| /** | |
| Retrieves the size of the value for a given PCD token. | |
| Retrieves the current size of a particular PCD token. | |
| If the TokenNumber is invalid, the results are unpredictable. | |
| @param[in] TokenNumber The PCD token number. | |
| @return The size of the value for the PCD token. | |
| **/ | |
| UINTN | |
| EFIAPI | |
| PeiPcdGetSize ( | |
| IN UINTN TokenNumber | |
| ) | |
| { | |
| PEI_PCD_DATABASE *PeiPcdDb; | |
| UINTN Size; | |
| UINTN MaxSize; | |
| UINT32 LocalTokenCount; | |
| PeiPcdDb = GetPcdDatabase (); | |
| LocalTokenCount = PeiPcdDb->LocalTokenCount; | |
| // | |
| // TokenNumber Zero is reserved as PCD_INVALID_TOKEN_NUMBER. | |
| // We have to decrement TokenNumber by 1 to make it usable | |
| // as the array index. | |
| // | |
| TokenNumber--; | |
| // EBC compiler is very choosy. It may report warning about comparison | |
| // between UINTN and 0 . So we add 1 in each size of the | |
| // comparison. | |
| ASSERT (TokenNumber + 1 < (LocalTokenCount + 1)); | |
| Size = (*((UINT32 *)((UINT8 *)PeiPcdDb + PeiPcdDb->LocalTokenNumberTableOffset) + TokenNumber) & PCD_DATUM_TYPE_ALL_SET) >> PCD_DATUM_TYPE_SHIFT; | |
| if (Size == 0) { | |
| // | |
| // For pointer type, we need to scan the SIZE_TABLE to get the current size. | |
| // | |
| return GetPtrTypeSize (TokenNumber, &MaxSize, PeiPcdDb); | |
| } else { | |
| return Size; | |
| } | |
| } | |
| /** | |
| Retrieves an 8-bit value for a given PCD token. | |
| Retrieves the 8-bit value of a particular PCD token. | |
| If the TokenNumber is invalid or the token space | |
| specified by Guid does not exist, the results are | |
| unpredictable. | |
| @param[in] Guid The token space for the token number. | |
| @param[in] ExTokenNumber The PCD token number. | |
| @return The size 8-bit value for the PCD token. | |
| **/ | |
| UINT8 | |
| EFIAPI | |
| PeiPcdGet8Ex ( | |
| IN CONST EFI_GUID *Guid, | |
| IN UINTN ExTokenNumber | |
| ) | |
| { | |
| return *((UINT8 *)ExGetWorker (Guid, ExTokenNumber, sizeof (UINT8))); | |
| } | |
| /** | |
| Retrieves an 16-bit value for a given PCD token. | |
| Retrieves the 16-bit value of a particular PCD token. | |
| If the TokenNumber is invalid or the token space | |
| specified by Guid does not exist, the results are | |
| unpredictable. | |
| @param[in] Guid The token space for the token number. | |
| @param[in] ExTokenNumber The PCD token number. | |
| @return The size 16-bit value for the PCD token. | |
| **/ | |
| UINT16 | |
| EFIAPI | |
| PeiPcdGet16Ex ( | |
| IN CONST EFI_GUID *Guid, | |
| IN UINTN ExTokenNumber | |
| ) | |
| { | |
| return ReadUnaligned16 (ExGetWorker (Guid, ExTokenNumber, sizeof (UINT16))); | |
| } | |
| /** | |
| Retrieves an 32-bit value for a given PCD token. | |
| Retrieves the 32-bit value of a particular PCD token. | |
| If the TokenNumber is invalid or the token space | |
| specified by Guid does not exist, the results are | |
| unpredictable. | |
| @param[in] Guid The token space for the token number. | |
| @param[in] ExTokenNumber The PCD token number. | |
| @return The size 32-bit value for the PCD token. | |
| **/ | |
| UINT32 | |
| EFIAPI | |
| PeiPcdGet32Ex ( | |
| IN CONST EFI_GUID *Guid, | |
| IN UINTN ExTokenNumber | |
| ) | |
| { | |
| return ReadUnaligned32 (ExGetWorker (Guid, ExTokenNumber, sizeof (UINT32))); | |
| } | |
| /** | |
| Retrieves an 64-bit value for a given PCD token. | |
| Retrieves the 64-bit value of a particular PCD token. | |
| If the TokenNumber is invalid or the token space | |
| specified by Guid does not exist, the results are | |
| unpredictable. | |
| @param[in] Guid The token space for the token number. | |
| @param[in] ExTokenNumber The PCD token number. | |
| @return The size 64-bit value for the PCD token. | |
| **/ | |
| UINT64 | |
| EFIAPI | |
| PeiPcdGet64Ex ( | |
| IN CONST EFI_GUID *Guid, | |
| IN UINTN ExTokenNumber | |
| ) | |
| { | |
| return ReadUnaligned64 (ExGetWorker (Guid, ExTokenNumber, sizeof (UINT64))); | |
| } | |
| /** | |
| Retrieves a pointer to a value for a given PCD token. | |
| Retrieves the current pointer to the buffer for a PCD token number. | |
| Do not make any assumptions about the alignment of the pointer that | |
| is returned by this function call. If the TokenNumber is invalid, | |
| the results are unpredictable. | |
| @param[in] Guid The token space for the token number. | |
| @param[in] ExTokenNumber The PCD token number. | |
| @return The pointer to the buffer to be retrieved. | |
| **/ | |
| VOID * | |
| EFIAPI | |
| PeiPcdGetPtrEx ( | |
| IN CONST EFI_GUID *Guid, | |
| IN UINTN ExTokenNumber | |
| ) | |
| { | |
| return ExGetWorker (Guid, ExTokenNumber, 0); | |
| } | |
| /** | |
| Retrieves an Boolean value for a given PCD token. | |
| Retrieves the Boolean value of a particular PCD token. | |
| If the TokenNumber is invalid or the token space | |
| specified by Guid does not exist, the results are | |
| unpredictable. | |
| @param[in] Guid The token space for the token number. | |
| @param[in] ExTokenNumber The PCD token number. | |
| @return The size Boolean value for the PCD token. | |
| **/ | |
| BOOLEAN | |
| EFIAPI | |
| PeiPcdGetBoolEx ( | |
| IN CONST EFI_GUID *Guid, | |
| IN UINTN ExTokenNumber | |
| ) | |
| { | |
| return *((BOOLEAN *)ExGetWorker (Guid, ExTokenNumber, sizeof (BOOLEAN))); | |
| } | |
| /** | |
| Retrieves the size of the value for a given PCD token. | |
| Retrieves the current size of a particular PCD token. | |
| If the TokenNumber is invalid, the results are unpredictable. | |
| @param[in] Guid The token space for the token number. | |
| @param[in] ExTokenNumber The PCD token number. | |
| @return The size of the value for the PCD token. | |
| **/ | |
| UINTN | |
| EFIAPI | |
| PeiPcdGetSizeEx ( | |
| IN CONST EFI_GUID *Guid, | |
| IN UINTN ExTokenNumber | |
| ) | |
| { | |
| return PeiPcdGetSize (GetExPcdTokenNumber (Guid, ExTokenNumber)); | |
| } | |
| /** | |
| Sets an 8-bit value for a given PCD token. | |
| When the PCD service sets a value, it will check to ensure that the | |
| size of the value being set is compatible with the Token's existing definition. | |
| If it is not, an error will be returned. | |
| @param[in] TokenNumber The PCD token number. | |
| @param[in] Value The value to set for the PCD token. | |
| @retval EFI_SUCCESS Procedure returned successfully. | |
| @retval EFI_INVALID_PARAMETER The PCD service determined that the size of the data | |
| being set was incompatible with a call to this function. | |
| Use GetSize() to retrieve the size of the target data. | |
| @retval EFI_NOT_FOUND The PCD service could not find the requested token number. | |
| **/ | |
| EFI_STATUS | |
| EFIAPI | |
| PeiPcdSet8 ( | |
| IN UINTN TokenNumber, | |
| IN UINT8 Value | |
| ) | |
| { | |
| return SetValueWorker (TokenNumber, &Value, sizeof (Value)); | |
| } | |
| /** | |
| Sets an 16-bit value for a given PCD token. | |
| When the PCD service sets a value, it will check to ensure that the | |
| size of the value being set is compatible with the Token's existing definition. | |
| If it is not, an error will be returned. | |
| @param[in] TokenNumber The PCD token number. | |
| @param[in] Value The value to set for the PCD token. | |
| @retval EFI_SUCCESS Procedure returned successfully. | |
| @retval EFI_INVALID_PARAMETER The PCD service determined that the size of the data | |
| being set was incompatible with a call to this function. | |
| Use GetSize() to retrieve the size of the target data. | |
| @retval EFI_NOT_FOUND The PCD service could not find the requested token number. | |
| **/ | |
| EFI_STATUS | |
| EFIAPI | |
| PeiPcdSet16 ( | |
| IN UINTN TokenNumber, | |
| IN UINT16 Value | |
| ) | |
| { | |
| return SetValueWorker (TokenNumber, &Value, sizeof (Value)); | |
| } | |
| /** | |
| Sets an 32-bit value for a given PCD token. | |
| When the PCD service sets a value, it will check to ensure that the | |
| size of the value being set is compatible with the Token's existing definition. | |
| If it is not, an error will be returned. | |
| @param[in] TokenNumber The PCD token number. | |
| @param[in] Value The value to set for the PCD token. | |
| @retval EFI_SUCCESS Procedure returned successfully. | |
| @retval EFI_INVALID_PARAMETER The PCD service determined that the size of the data | |
| being set was incompatible with a call to this function. | |
| Use GetSize() to retrieve the size of the target data. | |
| @retval EFI_NOT_FOUND The PCD service could not find the requested token number. | |
| **/ | |
| EFI_STATUS | |
| EFIAPI | |
| PeiPcdSet32 ( | |
| IN UINTN TokenNumber, | |
| IN UINT32 Value | |
| ) | |
| { | |
| return SetValueWorker (TokenNumber, &Value, sizeof (Value)); | |
| } | |
| /** | |
| Sets an 64-bit value for a given PCD token. | |
| When the PCD service sets a value, it will check to ensure that the | |
| size of the value being set is compatible with the Token's existing definition. | |
| If it is not, an error will be returned. | |
| @param[in] TokenNumber The PCD token number. | |
| @param[in] Value The value to set for the PCD token. | |
| @retval EFI_SUCCESS Procedure returned successfully. | |
| @retval EFI_INVALID_PARAMETER The PCD service determined that the size of the data | |
| being set was incompatible with a call to this function. | |
| Use GetSize() to retrieve the size of the target data. | |
| @retval EFI_NOT_FOUND The PCD service could not find the requested token number. | |
| **/ | |
| EFI_STATUS | |
| EFIAPI | |
| PeiPcdSet64 ( | |
| IN UINTN TokenNumber, | |
| IN UINT64 Value | |
| ) | |
| { | |
| return SetValueWorker (TokenNumber, &Value, sizeof (Value)); | |
| } | |
| /** | |
| Sets a value of a specified size for a given PCD token. | |
| When the PCD service sets a value, it will check to ensure that the | |
| size of the value being set is compatible with the Token's existing definition. | |
| If it is not, an error will be returned. | |
| @param[in] TokenNumber The PCD token number. | |
| @param[in, out] SizeOfBuffer A pointer to the length of the value being set for the PCD token. | |
| On input, if the SizeOfValue is greater than the maximum size supported | |
| for this TokenNumber then the output value of SizeOfValue will reflect | |
| the maximum size supported for this TokenNumber. | |
| @param[in] Buffer The buffer to set for the PCD token. | |
| @retval EFI_SUCCESS Procedure returned successfully. | |
| @retval EFI_INVALID_PARAMETER The PCD service determined that the size of the data | |
| being set was incompatible with a call to this function. | |
| Use GetSize() to retrieve the size of the target data. | |
| @retval EFI_NOT_FOUND The PCD service could not find the requested token number. | |
| **/ | |
| EFI_STATUS | |
| EFIAPI | |
| PeiPcdSetPtr ( | |
| IN UINTN TokenNumber, | |
| IN OUT UINTN *SizeOfBuffer, | |
| IN VOID *Buffer | |
| ) | |
| { | |
| return SetWorker (TokenNumber, Buffer, SizeOfBuffer, TRUE); | |
| } | |
| /** | |
| Sets an Boolean value for a given PCD token. | |
| When the PCD service sets a value, it will check to ensure that the | |
| size of the value being set is compatible with the Token's existing definition. | |
| If it is not, an error will be returned. | |
| @param[in] TokenNumber The PCD token number. | |
| @param[in] Value The value to set for the PCD token. | |
| @retval EFI_SUCCESS Procedure returned successfully. | |
| @retval EFI_INVALID_PARAMETER The PCD service determined that the size of the data | |
| being set was incompatible with a call to this function. | |
| Use GetSize() to retrieve the size of the target data. | |
| @retval EFI_NOT_FOUND The PCD service could not find the requested token number. | |
| **/ | |
| EFI_STATUS | |
| EFIAPI | |
| PeiPcdSetBool ( | |
| IN UINTN TokenNumber, | |
| IN BOOLEAN Value | |
| ) | |
| { | |
| return SetValueWorker (TokenNumber, &Value, sizeof (Value)); | |
| } | |
| /** | |
| Sets an 8-bit value for a given PCD token. | |
| When the PCD service sets a value, it will check to ensure that the | |
| size of the value being set is compatible with the Token's existing definition. | |
| If it is not, an error will be returned. | |
| @param[in] Guid The 128-bit unique value that designates the namespace from which to extract the value. | |
| @param[in] ExTokenNumber The PCD token number. | |
| @param[in] Value The value to set for the PCD token. | |
| @retval EFI_SUCCESS Procedure returned successfully. | |
| @retval EFI_INVALID_PARAMETER The PCD service determined that the size of the data | |
| being set was incompatible with a call to this function. | |
| Use GetSize() to retrieve the size of the target data. | |
| @retval EFI_NOT_FOUND The PCD service could not find the requested token number. | |
| **/ | |
| EFI_STATUS | |
| EFIAPI | |
| PeiPcdSet8Ex ( | |
| IN CONST EFI_GUID *Guid, | |
| IN UINTN ExTokenNumber, | |
| IN UINT8 Value | |
| ) | |
| { | |
| return ExSetValueWorker (ExTokenNumber, Guid, &Value, sizeof (Value)); | |
| } | |
| /** | |
| Sets an 16-bit value for a given PCD token. | |
| When the PCD service sets a value, it will check to ensure that the | |
| size of the value being set is compatible with the Token's existing definition. | |
| If it is not, an error will be returned. | |
| @param[in] Guid The 128-bit unique value that designates the namespace from which to extract the value. | |
| @param[in] ExTokenNumber The PCD token number. | |
| @param[in] Value The value to set for the PCD token. | |
| @retval EFI_SUCCESS Procedure returned successfully. | |
| @retval EFI_INVALID_PARAMETER The PCD service determined that the size of the data | |
| being set was incompatible with a call to this function. | |
| Use GetSize() to retrieve the size of the target data. | |
| @retval EFI_NOT_FOUND The PCD service could not find the requested token number. | |
| **/ | |
| EFI_STATUS | |
| EFIAPI | |
| PeiPcdSet16Ex ( | |
| IN CONST EFI_GUID *Guid, | |
| IN UINTN ExTokenNumber, | |
| IN UINT16 Value | |
| ) | |
| { | |
| return ExSetValueWorker (ExTokenNumber, Guid, &Value, sizeof (Value)); | |
| } | |
| /** | |
| Sets an 32-bit value for a given PCD token. | |
| When the PCD service sets a value, it will check to ensure that the | |
| size of the value being set is compatible with the Token's existing definition. | |
| If it is not, an error will be returned. | |
| @param[in] Guid The 128-bit unique value that designates the namespace from which to extract the value. | |
| @param[in] ExTokenNumber The PCD token number. | |
| @param[in] Value The value to set for the PCD token. | |
| @retval EFI_SUCCESS Procedure returned successfully. | |
| @retval EFI_INVALID_PARAMETER The PCD service determined that the size of the data | |
| being set was incompatible with a call to this function. | |
| Use GetSize() to retrieve the size of the target data. | |
| @retval EFI_NOT_FOUND The PCD service could not find the requested token number. | |
| **/ | |
| EFI_STATUS | |
| EFIAPI | |
| PeiPcdSet32Ex ( | |
| IN CONST EFI_GUID *Guid, | |
| IN UINTN ExTokenNumber, | |
| IN UINT32 Value | |
| ) | |
| { | |
| return ExSetValueWorker (ExTokenNumber, Guid, &Value, sizeof (Value)); | |
| } | |
| /** | |
| Sets an 64-bit value for a given PCD token. | |
| When the PCD service sets a value, it will check to ensure that the | |
| size of the value being set is compatible with the Token's existing definition. | |
| If it is not, an error will be returned. | |
| @param[in] Guid The 128-bit unique value that designates the namespace from which to extract the value. | |
| @param[in] ExTokenNumber The PCD token number. | |
| @param[in] Value The value to set for the PCD token. | |
| @retval EFI_SUCCESS Procedure returned successfully. | |
| @retval EFI_INVALID_PARAMETER The PCD service determined that the size of the data | |
| being set was incompatible with a call to this function. | |
| Use GetSize() to retrieve the size of the target data. | |
| @retval EFI_NOT_FOUND The PCD service could not find the requested token number. | |
| **/ | |
| EFI_STATUS | |
| EFIAPI | |
| PeiPcdSet64Ex ( | |
| IN CONST EFI_GUID *Guid, | |
| IN UINTN ExTokenNumber, | |
| IN UINT64 Value | |
| ) | |
| { | |
| return ExSetValueWorker (ExTokenNumber, Guid, &Value, sizeof (Value)); | |
| } | |
| /** | |
| Sets a value of a specified size for a given PCD token. | |
| When the PCD service sets a value, it will check to ensure that the | |
| size of the value being set is compatible with the Token's existing definition. | |
| If it is not, an error will be returned. | |
| @param[in] Guid The 128-bit unique value that designates the namespace from which to extract the value. | |
| @param[in] ExTokenNumber The PCD token number. | |
| @param[in, out] SizeOfBuffer A pointer to the length of the value being set for the PCD token. | |
| On input, if the SizeOfValue is greater than the maximum size supported | |
| for this TokenNumber then the output value of SizeOfValue will reflect | |
| the maximum size supported for this TokenNumber. | |
| @param[in] Value The buffer to set for the PCD token. | |
| @retval EFI_SUCCESS Procedure returned successfully. | |
| @retval EFI_INVALID_PARAMETER The PCD service determined that the size of the data | |
| being set was incompatible with a call to this function. | |
| Use GetSize() to retrieve the size of the target data. | |
| @retval EFI_NOT_FOUND The PCD service could not find the requested token number. | |
| **/ | |
| EFI_STATUS | |
| EFIAPI | |
| PeiPcdSetPtrEx ( | |
| IN CONST EFI_GUID *Guid, | |
| IN UINTN ExTokenNumber, | |
| IN OUT UINTN *SizeOfBuffer, | |
| IN VOID *Value | |
| ) | |
| { | |
| return ExSetWorker (ExTokenNumber, Guid, Value, SizeOfBuffer, TRUE); | |
| } | |
| /** | |
| Sets an Boolean value for a given PCD token. | |
| When the PCD service sets a value, it will check to ensure that the | |
| size of the value being set is compatible with the Token's existing definition. | |
| If it is not, an error will be returned. | |
| @param [in] Guid The 128-bit unique value that designates the namespace from which to extract the value. | |
| @param [in] ExTokenNumber The PCD token number. | |
| @param [in] Value The value to set for the PCD token. | |
| @retval EFI_SUCCESS Procedure returned successfully. | |
| @retval EFI_INVALID_PARAMETER The PCD service determined that the size of the data | |
| being set was incompatible with a call to this function. | |
| Use GetSize() to retrieve the size of the target data. | |
| @retval EFI_NOT_FOUND The PCD service could not find the requested token number. | |
| **/ | |
| EFI_STATUS | |
| EFIAPI | |
| PeiPcdSetBoolEx ( | |
| IN CONST EFI_GUID *Guid, | |
| IN UINTN ExTokenNumber, | |
| IN BOOLEAN Value | |
| ) | |
| { | |
| return ExSetValueWorker (ExTokenNumber, Guid, &Value, sizeof (Value)); | |
| } | |
| /** | |
| Specifies a function to be called anytime the value of a designated token is changed. | |
| @param[in] Guid The 128-bit unique value that designates the namespace from which to extract the value. | |
| @param[in] ExTokenNumber The PCD token number. | |
| @param[in] CallBackFunction The function prototype called when the value associated with the CallBackToken is set. | |
| @retval EFI_SUCCESS The PCD service has successfully established a call event | |
| for the CallBackToken requested. | |
| @retval EFI_NOT_FOUND The PCD service could not find the referenced token number. | |
| **/ | |
| EFI_STATUS | |
| EFIAPI | |
| PeiRegisterCallBackOnSet ( | |
| IN CONST EFI_GUID *Guid OPTIONAL, | |
| IN UINTN ExTokenNumber, | |
| IN PCD_PPI_CALLBACK CallBackFunction | |
| ) | |
| { | |
| if (!FeaturePcdGet (PcdPeiFullPcdDatabaseEnable)) { | |
| return EFI_UNSUPPORTED; | |
| } | |
| if (CallBackFunction == NULL) { | |
| return EFI_INVALID_PARAMETER; | |
| } | |
| return PeiRegisterCallBackWorker (ExTokenNumber, Guid, CallBackFunction, TRUE); | |
| } | |
| /** | |
| Cancels a previously set callback function for a particular PCD token number. | |
| @param[in] Guid The 128-bit unique value that designates the namespace from which to extract the value. | |
| @param[in] ExTokenNumber The PCD token number. | |
| @param[in] CallBackFunction The function prototype called when the value associated with the CallBackToken is set. | |
| @retval EFI_SUCCESS The PCD service has successfully established a call event | |
| for the CallBackToken requested. | |
| @retval EFI_NOT_FOUND The PCD service could not find the referenced token number. | |
| **/ | |
| EFI_STATUS | |
| EFIAPI | |
| PcdUnRegisterCallBackOnSet ( | |
| IN CONST EFI_GUID *Guid OPTIONAL, | |
| IN UINTN ExTokenNumber, | |
| IN PCD_PPI_CALLBACK CallBackFunction | |
| ) | |
| { | |
| if (!FeaturePcdGet (PcdPeiFullPcdDatabaseEnable)) { | |
| return EFI_UNSUPPORTED; | |
| } | |
| if (CallBackFunction == NULL) { | |
| return EFI_INVALID_PARAMETER; | |
| } | |
| return PeiRegisterCallBackWorker (ExTokenNumber, Guid, CallBackFunction, FALSE); | |
| } | |
| /** | |
| Retrieves the next valid token number in a given namespace. | |
| This is useful since the PCD infrastructure contains a sparse list of token numbers, | |
| and one cannot a priori know what token numbers are valid in the database. | |
| If TokenNumber is 0 and Guid is not NULL, then the first token from the token space specified by Guid is returned. | |
| If TokenNumber is not 0 and Guid is not NULL, then the next token in the token space specified by Guid is returned. | |
| If TokenNumber is 0 and Guid is NULL, then the first token in the default token space is returned. | |
| If TokenNumber is not 0 and Guid is NULL, then the next token in the default token space is returned. | |
| The token numbers in the default token space may not be related to token numbers in token spaces that are named by Guid. | |
| If the next token number can be retrieved, then it is returned in TokenNumber, and EFI_SUCCESS is returned. | |
| If TokenNumber represents the last token number in the token space specified by Guid, then EFI_NOT_FOUND is returned. | |
| If TokenNumber is not present in the token space specified by Guid, then EFI_NOT_FOUND is returned. | |
| @param[in] Guid The 128-bit unique value that designates the namespace from which to extract the value. | |
| This is an optional parameter that may be NULL. If this parameter is NULL, then a request | |
| is being made to retrieve tokens from the default token space. | |
| @param[in, out] TokenNumber A pointer to the PCD token number to use to find the subsequent token number. | |
| @retval EFI_SUCCESS The PCD service has retrieved the next valid token number. | |
| @retval EFI_NOT_FOUND The PCD service could not find data from the requested token number. | |
| **/ | |
| EFI_STATUS | |
| EFIAPI | |
| PeiPcdGetNextToken ( | |
| IN CONST EFI_GUID *Guid OPTIONAL, | |
| IN OUT UINTN *TokenNumber | |
| ) | |
| { | |
| UINTN GuidTableIdx; | |
| PEI_PCD_DATABASE *PeiPcdDb; | |
| EFI_GUID *MatchGuid; | |
| EFI_GUID *GuidTable; | |
| DYNAMICEX_MAPPING *ExMapTable; | |
| UINTN Index; | |
| BOOLEAN Found; | |
| BOOLEAN PeiExMapTableEmpty; | |
| UINTN PeiNexTokenNumber; | |
| if (!FeaturePcdGet (PcdPeiFullPcdDatabaseEnable)) { | |
| return EFI_UNSUPPORTED; | |
| } | |
| PeiPcdDb = GetPcdDatabase (); | |
| PeiNexTokenNumber = PeiPcdDb->LocalTokenCount - PeiPcdDb->ExTokenCount; | |
| GuidTable = (EFI_GUID *)((UINT8 *)PeiPcdDb + PeiPcdDb->GuidTableOffset); | |
| if (PeiPcdDb->ExTokenCount == 0) { | |
| PeiExMapTableEmpty = TRUE; | |
| } else { | |
| PeiExMapTableEmpty = FALSE; | |
| } | |
| if (Guid == NULL) { | |
| if (*TokenNumber > PeiNexTokenNumber) { | |
| return EFI_NOT_FOUND; | |
| } | |
| (*TokenNumber)++; | |
| if (*TokenNumber > PeiNexTokenNumber) { | |
| *TokenNumber = PCD_INVALID_TOKEN_NUMBER; | |
| return EFI_NOT_FOUND; | |
| } | |
| return EFI_SUCCESS; | |
| } else { | |
| if (PeiExMapTableEmpty) { | |
| return EFI_NOT_FOUND; | |
| } | |
| MatchGuid = ScanGuid (GuidTable, PeiPcdDb->GuidTableCount * sizeof (EFI_GUID), Guid); | |
| if (MatchGuid == NULL) { | |
| return EFI_NOT_FOUND; | |
| } | |
| GuidTableIdx = MatchGuid - GuidTable; | |
| ExMapTable = (DYNAMICEX_MAPPING *)((UINT8 *)PeiPcdDb + PeiPcdDb->ExMapTableOffset); | |
| Found = FALSE; | |
| // | |
| // Locate the GUID in ExMapTable first. | |
| // | |
| for (Index = 0; Index < PeiPcdDb->ExTokenCount; Index++) { | |
| if (ExMapTable[Index].ExGuidIndex == GuidTableIdx) { | |
| Found = TRUE; | |
| break; | |
| } | |
| } | |
| if (Found) { | |
| // | |
| // If given token number is PCD_INVALID_TOKEN_NUMBER, then return the first | |
| // token number in found token space. | |
| // | |
| if (*TokenNumber == PCD_INVALID_TOKEN_NUMBER) { | |
| *TokenNumber = ExMapTable[Index].ExTokenNumber; | |
| return EFI_SUCCESS; | |
| } | |
| for ( ; Index < PeiPcdDb->ExTokenCount; Index++) { | |
| if ((ExMapTable[Index].ExTokenNumber == *TokenNumber) && (ExMapTable[Index].ExGuidIndex == GuidTableIdx)) { | |
| break; | |
| } | |
| } | |
| while (Index < PeiPcdDb->ExTokenCount) { | |
| Index++; | |
| if (Index == PeiPcdDb->ExTokenCount) { | |
| // | |
| // Exceed the length of ExMap Table | |
| // | |
| *TokenNumber = PCD_INVALID_TOKEN_NUMBER; | |
| return EFI_NOT_FOUND; | |
| } else if (ExMapTable[Index].ExGuidIndex == GuidTableIdx) { | |
| // | |
| // Found the next match | |
| // | |
| *TokenNumber = ExMapTable[Index].ExTokenNumber; | |
| return EFI_SUCCESS; | |
| } | |
| } | |
| } | |
| } | |
| return EFI_NOT_FOUND; | |
| } | |
| /** | |
| Retrieves the next valid PCD token namespace for a given namespace. | |
| Gets the next valid token namespace for a given namespace. This is useful to traverse the valid | |
| token namespaces on a platform. | |
| @param[in, out] Guid An indirect pointer to EFI_GUID. On input it designates a known token | |
| namespace from which the search will start. On output, it designates the next valid | |
| token namespace on the platform. If *Guid is NULL, then the GUID of the first token | |
| space of the current platform is returned. If the search cannot locate the next valid | |
| token namespace, an error is returned and the value of *Guid is undefined. | |
| @retval EFI_SUCCESS The PCD service retrieved the value requested. | |
| @retval EFI_NOT_FOUND The PCD service could not find the next valid token namespace. | |
| **/ | |
| EFI_STATUS | |
| EFIAPI | |
| PeiPcdGetNextTokenSpace ( | |
| IN OUT CONST EFI_GUID **Guid | |
| ) | |
| { | |
| UINTN GuidTableIdx; | |
| EFI_GUID *MatchGuid; | |
| PEI_PCD_DATABASE *PeiPcdDb; | |
| DYNAMICEX_MAPPING *ExMapTable; | |
| UINTN Index; | |
| UINTN Index2; | |
| BOOLEAN Found; | |
| BOOLEAN PeiExMapTableEmpty; | |
| EFI_GUID *GuidTable; | |
| if (!FeaturePcdGet (PcdPeiFullPcdDatabaseEnable)) { | |
| return EFI_UNSUPPORTED; | |
| } | |
| ASSERT (Guid != NULL); | |
| PeiPcdDb = GetPcdDatabase (); | |
| if (PeiPcdDb->ExTokenCount == 0) { | |
| PeiExMapTableEmpty = TRUE; | |
| } else { | |
| PeiExMapTableEmpty = FALSE; | |
| } | |
| if (PeiExMapTableEmpty) { | |
| return EFI_NOT_FOUND; | |
| } | |
| ExMapTable = (DYNAMICEX_MAPPING *)((UINT8 *)PeiPcdDb + PeiPcdDb->ExMapTableOffset); | |
| GuidTable = (EFI_GUID *)((UINT8 *)PeiPcdDb + PeiPcdDb->GuidTableOffset); | |
| if (*Guid == NULL) { | |
| // | |
| // return the first Token Space Guid. | |
| // | |
| *Guid = GuidTable + ExMapTable[0].ExGuidIndex; | |
| return EFI_SUCCESS; | |
| } | |
| MatchGuid = ScanGuid (GuidTable, PeiPcdDb->GuidTableCount * sizeof (GuidTable[0]), *Guid); | |
| if (MatchGuid == NULL) { | |
| return EFI_NOT_FOUND; | |
| } | |
| GuidTableIdx = MatchGuid - GuidTable; | |
| Found = FALSE; | |
| for (Index = 0; Index < PeiPcdDb->ExTokenCount; Index++) { | |
| if (ExMapTable[Index].ExGuidIndex == GuidTableIdx) { | |
| Found = TRUE; | |
| break; | |
| } | |
| } | |
| if (Found) { | |
| Index++; | |
| for ( ; Index < PeiPcdDb->ExTokenCount; Index++ ) { | |
| if (ExMapTable[Index].ExGuidIndex != GuidTableIdx) { | |
| Found = FALSE; | |
| for (Index2 = 0; Index2 < Index; Index2++) { | |
| if (ExMapTable[Index2].ExGuidIndex == ExMapTable[Index].ExGuidIndex) { | |
| // | |
| // This token namespace should have been found and output at preceding getting. | |
| // | |
| Found = TRUE; | |
| break; | |
| } | |
| } | |
| if (!Found) { | |
| *Guid = (EFI_GUID *)((UINT8 *)PeiPcdDb + PeiPcdDb->GuidTableOffset) + ExMapTable[Index].ExGuidIndex; | |
| return EFI_SUCCESS; | |
| } | |
| } | |
| } | |
| *Guid = NULL; | |
| } | |
| return EFI_NOT_FOUND; | |
| } | |
| /** | |
| Get PCD value's size for POINTER type PCD. | |
| The POINTER type PCD's value will be stored into a buffer in specified size. | |
| The max size of this PCD's value is described in PCD's definition in DEC file. | |
| @param LocalTokenNumberTableIdx Index of PCD token number in PCD token table | |
| @param MaxSize Maximum size of PCD's value | |
| @param Database Pcd database in PEI phase. | |
| @return PCD value's size for POINTER type PCD. | |
| **/ | |
| UINTN | |
| GetPtrTypeSize ( | |
| IN UINTN LocalTokenNumberTableIdx, | |
| OUT UINTN *MaxSize, | |
| IN PEI_PCD_DATABASE *Database | |
| ) | |
| { | |
| INTN SizeTableIdx; | |
| UINTN LocalTokenNumber; | |
| SIZE_INFO *SizeTable; | |
| SizeTableIdx = GetSizeTableIndex (LocalTokenNumberTableIdx, Database); | |
| LocalTokenNumber = *((UINT32 *)((UINT8 *)Database + Database->LocalTokenNumberTableOffset) + LocalTokenNumberTableIdx); | |
| ASSERT ((LocalTokenNumber & PCD_DATUM_TYPE_ALL_SET) == PCD_DATUM_TYPE_POINTER); | |
| SizeTable = (SIZE_INFO *)((UINT8 *)Database + Database->SizeTableOffset); | |
| *MaxSize = SizeTable[SizeTableIdx]; | |
| // | |
| // SizeTable only contain record for PCD_DATUM_TYPE_POINTER type | |
| // PCD entry. | |
| // | |
| if ((LocalTokenNumber & PCD_TYPE_VPD) != 0) { | |
| // | |
| // We have only two entry for VPD enabled PCD entry: | |
| // 1) MAX Size. | |
| // 2) Current Size | |
| // We consider current size is equal to MAX size. | |
| // | |
| return *MaxSize; | |
| } else { | |
| // | |
| // We have only two entry for Non-Sku enabled PCD entry: | |
| // 1) MAX SIZE | |
| // 2) Current Size | |
| // | |
| return SizeTable[SizeTableIdx + 1]; | |
| } | |
| } | |
| /** | |
| Set PCD value's size for POINTER type PCD. | |
| The POINTER type PCD's value will be stored into a buffer in specified size. | |
| The max size of this PCD's value is described in PCD's definition in DEC file. | |
| @param LocalTokenNumberTableIdx Index of PCD token number in PCD token table | |
| @param CurrentSize Maximum size of PCD's value | |
| @param Database Pcd database in PEI phase. | |
| @retval TRUE Success to set PCD's value size, which is not exceed maximum size | |
| @retval FALSE Fail to set PCD's value size, which maybe exceed maximum size | |
| **/ | |
| BOOLEAN | |
| SetPtrTypeSize ( | |
| IN UINTN LocalTokenNumberTableIdx, | |
| IN OUT UINTN *CurrentSize, | |
| IN PEI_PCD_DATABASE *Database | |
| ) | |
| { | |
| INTN SizeTableIdx; | |
| UINTN LocalTokenNumber; | |
| SIZE_INFO *SizeTable; | |
| UINTN MaxSize; | |
| SizeTableIdx = GetSizeTableIndex (LocalTokenNumberTableIdx, Database); | |
| LocalTokenNumber = *((UINT32 *)((UINT8 *)Database + Database->LocalTokenNumberTableOffset) + LocalTokenNumberTableIdx); | |
| ASSERT ((LocalTokenNumber & PCD_DATUM_TYPE_ALL_SET) == PCD_DATUM_TYPE_POINTER); | |
| SizeTable = (SIZE_INFO *)((UINT8 *)Database + Database->SizeTableOffset); | |
| MaxSize = SizeTable[SizeTableIdx]; | |
| // | |
| // SizeTable only contain record for PCD_DATUM_TYPE_POINTER type | |
| // PCD entry. | |
| // | |
| if ((LocalTokenNumber & PCD_TYPE_VPD) != 0) { | |
| // | |
| // We shouldn't come here as we don't support SET for VPD | |
| // | |
| ASSERT (FALSE); | |
| return FALSE; | |
| } else { | |
| if ((*CurrentSize > MaxSize) || | |
| (*CurrentSize == MAX_ADDRESS)) | |
| { | |
| *CurrentSize = MaxSize; | |
| return FALSE; | |
| } | |
| // | |
| // We have only two entry for Non-Sku enabled PCD entry: | |
| // 1) MAX SIZE | |
| // 2) Current Size | |
| // | |
| SizeTable[SizeTableIdx + 1] = (SIZE_INFO)*CurrentSize; | |
| return TRUE; | |
| } | |
| } |