From: Duke Zhai <Duke.Zhai@amd.com>
BZ #:4640
In V2: Improve coding style.
1.Remove the leading underscore and use double underscore at trailing in C header files.
2.Remove old tianocore licenses and redundant license description.
3.Improve coding style. For example: remove space between @param.
In V1:
ChachaniBoard Use FSP for open source. FSP is needed to provide some
AGESA related pcds as the interface for Platform BIOS.
Override those EDK2 files to support reading AGESA-related PCDs from FSP.
Signed-off-by: Ken Yao <ken.yao@amd.com>
Cc: Eric Xing <eric.xing@amd.com>
Cc: Duke Zhai <duke.zhai@amd.com>
Cc: Igniculus Fu <igniculus.fu@amd.com>
Cc: Abner Chang <abner.chang@amd.com>
---
.../edk2/MdeModulePkg/Universal/PCD/Dxe/Pcd.c | 1520 +++++++++++++
.../MdeModulePkg/Universal/PCD/Dxe/Pcd.inf | 366 ++++
.../edk2/MdeModulePkg/Universal/PCD/Pei/Pcd.c | 1876 +++++++++++++++++
.../MdeModulePkg/Universal/PCD/Pei/Pcd.inf | 368 ++++
.../Register/Intel/SmramSaveStateMap.h | 324 +++
5 files changed, 4454 insertions(+)
create mode 100644 Platform/AMD/VanGoghBoard/Override/edk2/MdeModulePkg/Universal/PCD/Dxe/Pcd.c
create mode 100644 Platform/AMD/VanGoghBoard/Override/edk2/MdeModulePkg/Universal/PCD/Dxe/Pcd.inf
create mode 100644 Platform/AMD/VanGoghBoard/Override/edk2/MdeModulePkg/Universal/PCD/Pei/Pcd.c
create mode 100644 Platform/AMD/VanGoghBoard/Override/edk2/MdeModulePkg/Universal/PCD/Pei/Pcd.inf
create mode 100644 Platform/AMD/VanGoghBoard/Override/edk2/MdePkg/Include/Register/Intel/SmramSaveStateMap.h
diff --git a/Platform/AMD/VanGoghBoard/Override/edk2/MdeModulePkg/Universal/PCD/Dxe/Pcd.c b/Platform/AMD/VanGoghBoard/Override/edk2/MdeModulePkg/Universal/PCD/Dxe/Pcd.c
new file mode 100644
index 0000000000..5533786b2c
--- /dev/null
+++ b/Platform/AMD/VanGoghBoard/Override/edk2/MdeModulePkg/Universal/PCD/Dxe/Pcd.c
@@ -0,0 +1,1520 @@
+/** @file
+ PCD DXE driver manage all PCD entry initialized in PEI phase and DXE phase, and
+ produce the implementation of native PCD protocol and EFI_PCD_PROTOCOL defined in
+ PI 1.4a Vol3.
+
+Copyright (C) 2024 Advanced Micro Devices, Inc. All rights reserved.<BR>
+Copyright (c) 2006 - 2018, Intel Corporation. All rights reserved.<BR>
+SPDX-License-Identifier: BSD-2-Clause-Patent
+
+**/
+
+#include "Service.h"
+
+extern EFI_GUID gEfiAmdAgesaModulePkgTokenSpaceGuid;
+extern EFI_GUID gEfiAmdAgesaPkgTokenSpaceGuid;
+extern EFI_GUID gFspEfiGetPcdInfoProtocolGuid;
+extern EFI_GUID gFspEfiPcdProtocolGuid;
+
+// Cache the FSP PiPcd Protocols.
+STATIC EFI_PCD_PROTOCOL *CachedFspPiPcdProtocol;
+STATIC EFI_GET_PCD_INFO_PROTOCOL *CachedFspPiGetPcdInfoProtocol;
+
+STATIC
+BOOLEAN
+CheckPcdInFsp (
+ IN CONST EFI_GUID *InputGuid
+ )
+{
+ if ( (FixedPcdGet8 (PcdFspModeSelection) == 0) // Dispatch mode
+ && ( CompareGuid (InputGuid, &gEfiAmdAgesaModulePkgTokenSpaceGuid) // AgesaModulePkg
+ || CompareGuid (InputGuid, &gEfiAmdAgesaPkgTokenSpaceGuid) // AgesaPkg
+ || CompareGuid (InputGuid, &gAmdFspPkgGuid) // FspPkg
+ || CompareGuid (InputGuid, &gAmdCpmPkgTokenSpaceGuid))) // AmdCpmPkg
+ {
+ return TRUE;
+ }
+
+ return FALSE;
+}
+
+VOID
+EFIAPI
+FspPiPcdProtocolInstalled (
+ IN EFI_EVENT Event,
+ IN VOID *Context
+ )
+{
+ gBS->LocateProtocol (&gFspEfiPcdProtocolGuid, NULL, (VOID **)&CachedFspPiPcdProtocol);
+ gBS->CloseEvent (Event);
+ return;
+}
+
+VOID
+EFIAPI
+FspPiGetPcdInfoProtocolInstalled (
+ IN EFI_EVENT Event,
+ IN VOID *Context
+ )
+{
+ gBS->LocateProtocol (&gFspEfiGetPcdInfoProtocolGuid, NULL, (VOID **)&CachedFspPiGetPcdInfoProtocol);
+ gBS->CloseEvent (Event);
+ return;
+}
+
+STATIC EFI_EVENT mFspPiPcdProtocolInstalledEvent;
+STATIC EFI_EVENT mFspPiGetPcdInfoProtocolInstalledEvent;
+
+///
+/// PCD database lock.
+///
+EFI_LOCK mPcdDatabaseLock = EFI_INITIALIZE_LOCK_VARIABLE (TPL_NOTIFY);
+
+///
+/// PCD_PROTOCOL the EDKII native implementation which support dynamic
+/// type and dynamicEx type PCDs.
+///
+PCD_PROTOCOL mPcdInstance = {
+ DxePcdSetSku,
+
+ DxePcdGet8,
+ DxePcdGet16,
+ DxePcdGet32,
+ DxePcdGet64,
+ DxePcdGetPtr,
+ DxePcdGetBool,
+ DxePcdGetSize,
+
+ DxePcdGet8Ex,
+ DxePcdGet16Ex,
+ DxePcdGet32Ex,
+ DxePcdGet64Ex,
+ DxePcdGetPtrEx,
+ DxePcdGetBoolEx,
+ DxePcdGetSizeEx,
+
+ DxePcdSet8,
+ DxePcdSet16,
+ DxePcdSet32,
+ DxePcdSet64,
+ DxePcdSetPtr,
+ DxePcdSetBool,
+
+ DxePcdSet8Ex,
+ DxePcdSet16Ex,
+ DxePcdSet32Ex,
+ DxePcdSet64Ex,
+ DxePcdSetPtrEx,
+ DxePcdSetBoolEx,
+
+ DxeRegisterCallBackOnSet,
+ DxeUnRegisterCallBackOnSet,
+ DxePcdGetNextToken,
+ DxePcdGetNextTokenSpace
+};
+
+///
+/// EFI_PCD_PROTOCOL is defined in PI 1.2 Vol 3 which only support dynamicEx type
+/// PCD.
+///
+EFI_PCD_PROTOCOL mEfiPcdInstance = {
+ DxePcdSetSku,
+ DxePcdGet8Ex,
+ DxePcdGet16Ex,
+ DxePcdGet32Ex,
+ DxePcdGet64Ex,
+ DxePcdGetPtrEx,
+ DxePcdGetBoolEx,
+ DxePcdGetSizeEx,
+ DxePcdSet8Ex,
+ DxePcdSet16Ex,
+ DxePcdSet32Ex,
+ DxePcdSet64Ex,
+ DxePcdSetPtrEx,
+ DxePcdSetBoolEx,
+ (EFI_PCD_PROTOCOL_CALLBACK_ON_SET)DxeRegisterCallBackOnSet,
+ (EFI_PCD_PROTOCOL_CANCEL_CALLBACK)DxeUnRegisterCallBackOnSet,
+ DxePcdGetNextToken,
+ DxePcdGetNextTokenSpace
+};
+
+///
+/// Instance of GET_PCD_INFO_PROTOCOL protocol is EDKII native implementation.
+/// This protocol instance support dynamic and dynamicEx type PCDs.
+///
+GET_PCD_INFO_PROTOCOL mGetPcdInfoInstance = {
+ DxeGetPcdInfoGetInfo,
+ DxeGetPcdInfoGetInfoEx,
+ DxeGetPcdInfoGetSku
+};
+
+///
+/// Instance of EFI_GET_PCD_INFO_PROTOCOL which is defined in PI 1.2.1 Vol 3.
+/// This PPI instance only support dyanmicEx type PCD.
+///
+EFI_GET_PCD_INFO_PROTOCOL mEfiGetPcdInfoInstance = {
+ DxeGetPcdInfoGetInfoEx,
+ DxeGetPcdInfoGetSku
+};
+
+EFI_HANDLE mPcdHandle = NULL;
+UINTN mVpdBaseAddress = 0;
+
+/**
+ Main entry for PCD DXE driver.
+
+ This routine initialize the PCD database and install PCD_PROTOCOL.
+
+ @param ImageHandle Image handle for PCD DXE driver.
+ @param SystemTable Pointer to SystemTable.
+
+ @return Status of gBS->InstallProtocolInterface()
+
+**/
+EFI_STATUS
+EFIAPI
+PcdDxeInit (
+ IN EFI_HANDLE ImageHandle,
+ IN EFI_SYSTEM_TABLE *SystemTable
+ )
+{
+ EFI_STATUS Status;
+ VOID *Registration;
+
+ //
+ // Make sure the Pcd Protocol is not already installed in the system
+ //
+
+ ASSERT_PROTOCOL_ALREADY_INSTALLED (NULL, &gPcdProtocolGuid);
+
+ BuildPcdDxeDataBase ();
+
+ //
+ // Install PCD_PROTOCOL to handle dynamic type PCD
+ // Install EFI_PCD_PROTOCOL to handle dynamicEx type PCD
+ //
+ Status = gBS->InstallMultipleProtocolInterfaces (
+ &mPcdHandle,
+ &gPcdProtocolGuid,
+ &mPcdInstance,
+ &gEfiPcdProtocolGuid,
+ &mEfiPcdInstance,
+ NULL
+ );
+ ASSERT_EFI_ERROR (Status);
+
+ //
+ // Install GET_PCD_INFO_PROTOCOL to handle dynamic type PCD
+ // Install EFI_GET_PCD_INFO_PROTOCOL to handle dynamicEx type PCD
+ //
+ Status = gBS->InstallMultipleProtocolInterfaces (
+ &mPcdHandle,
+ &gGetPcdInfoProtocolGuid,
+ &mGetPcdInfoInstance,
+ &gEfiGetPcdInfoProtocolGuid,
+ &mEfiGetPcdInfoInstance,
+ NULL
+ );
+ ASSERT_EFI_ERROR (Status);
+
+ // Wait FSP Pcd Protocol.
+ gBS->CreateEvent (EVT_NOTIFY_SIGNAL, TPL_CALLBACK, FspPiPcdProtocolInstalled, NULL, &mFspPiPcdProtocolInstalledEvent);
+ gBS->RegisterProtocolNotify (&gFspEfiPcdProtocolGuid, mFspPiPcdProtocolInstalledEvent, &Registration);
+ gBS->CreateEvent (EVT_NOTIFY_SIGNAL, TPL_CALLBACK, FspPiGetPcdInfoProtocolInstalled, NULL, &mFspPiGetPcdInfoProtocolInstalledEvent);
+ gBS->RegisterProtocolNotify (&gFspEfiGetPcdInfoProtocolGuid, mFspPiGetPcdInfoProtocolInstalledEvent, &Registration);
+
+ //
+ // Register callback function upon VariableLockProtocol
+ // to lock the variables referenced by DynamicHii PCDs with RO property set in *.dsc.
+ //
+ EfiCreateProtocolNotifyEvent (
+ &gEdkiiVariableLockProtocolGuid,
+ TPL_CALLBACK,
+ VariableLockCallBack,
+ NULL,
+ &Registration
+ );
+
+ //
+ // Cache VpdBaseAddress in entry point for the following usage.
+ //
+
+ //
+ // PcdVpdBaseAddress64 is DynamicEx PCD only. So, DxePcdGet64Ex() is used to get its value.
+ //
+ mVpdBaseAddress = (UINTN)DxePcdGet64Ex (&gEfiMdeModulePkgTokenSpaceGuid, PcdToken (PcdVpdBaseAddress64));
+ if (mVpdBaseAddress == 0) {
+ //
+ // PcdVpdBaseAddress64 is not set, get value from PcdVpdBaseAddress.
+ //
+ mVpdBaseAddress = (UINTN)PcdGet32 (PcdVpdBaseAddress);
+ }
+
+ 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
+DxeGetPcdInfoGetInfo (
+ IN UINTN TokenNumber,
+ OUT EFI_PCD_INFO *PcdInfo
+ )
+{
+ return DxeGetPcdInfo (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
+DxeGetPcdInfoGetInfoEx (
+ IN CONST EFI_GUID *Guid,
+ IN UINTN TokenNumber,
+ OUT EFI_PCD_INFO *PcdInfo
+ )
+{
+ if (CheckPcdInFsp (Guid)) {
+ ASSERT (CachedFspPiGetPcdInfoProtocol != NULL);
+ return CachedFspPiGetPcdInfoProtocol->GetInfo (Guid, TokenNumber, PcdInfo);
+ }
+
+ return DxeGetPcdInfo (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
+DxeGetPcdInfoGetSku (
+ VOID
+ )
+{
+ return (UINTN)mPcdDatabase.DxeDb->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
+DxePcdSetSku (
+ IN UINTN SkuId
+ )
+{
+ SKU_ID *SkuIdTable;
+ UINTN Index;
+ EFI_STATUS Status;
+
+ DEBUG ((DEBUG_INFO, "PcdDxe - SkuId 0x%lx is to be set.\n", (SKU_ID)SkuId));
+
+ if (SkuId == mPcdDatabase.DxeDb->SystemSkuId) {
+ //
+ // The input SKU Id is equal to current SKU Id, return directly.
+ //
+ DEBUG ((DEBUG_INFO, "PcdDxe - SkuId is same to current system Sku.\n"));
+ return;
+ }
+
+ if (mPcdDatabase.DxeDb->SystemSkuId != (SKU_ID)0) {
+ DEBUG ((DEBUG_ERROR, "PcdDxe - The SKU Id could be changed only once."));
+ DEBUG ((
+ DEBUG_ERROR,
+ "PcdDxe - The SKU Id was set to 0x%lx already, it could not be set to 0x%lx any more.",
+ mPcdDatabase.DxeDb->SystemSkuId,
+ (SKU_ID)SkuId
+ ));
+ ASSERT (FALSE);
+ return;
+ }
+
+ SkuIdTable = (SKU_ID *)((UINT8 *)mPcdDatabase.DxeDb + mPcdDatabase.DxeDb->SkuIdTableOffset);
+ for (Index = 0; Index < SkuIdTable[0]; Index++) {
+ if (SkuId == SkuIdTable[Index + 1]) {
+ DEBUG ((DEBUG_INFO, "PcdDxe - SkuId is found in SkuId table.\n"));
+ Status = UpdatePcdDatabase (SkuId, TRUE);
+ if (!EFI_ERROR (Status)) {
+ mPcdDatabase.DxeDb->SystemSkuId = (SKU_ID)SkuId;
+ DEBUG ((DEBUG_INFO, "PcdDxe - 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, "PcdDxe - 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
+DxePcdGet8 (
+ 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
+DxePcdGet16 (
+ 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
+DxePcdGet32 (
+ 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
+DxePcdGet64 (
+ 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 retrived.
+
+**/
+VOID *
+EFIAPI
+DxePcdGetPtr (
+ 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
+DxePcdGetBool (
+ 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
+DxePcdGetSize (
+ IN UINTN TokenNumber
+ )
+{
+ UINTN Size;
+ UINT32 *LocalTokenNumberTable;
+ BOOLEAN IsPeiDb;
+ UINTN MaxSize;
+ UINTN TmpTokenNumber;
+
+ //
+ // 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--;
+
+ //
+ // Backup the TokenNumber passed in as GetPtrTypeSize need the original TokenNumber
+ //
+ TmpTokenNumber = 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 < mPcdTotalTokenCount + 1);
+
+ // 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.
+ IsPeiDb = (BOOLEAN)(TokenNumber + 1 < mPeiLocalTokenCount + 1);
+
+ TokenNumber = IsPeiDb ? TokenNumber :
+ (TokenNumber - mPeiLocalTokenCount);
+
+ LocalTokenNumberTable = IsPeiDb ? (UINT32 *)((UINT8 *)mPcdDatabase.PeiDb + mPcdDatabase.PeiDb->LocalTokenNumberTableOffset)
+ : (UINT32 *)((UINT8 *)mPcdDatabase.DxeDb + mPcdDatabase.DxeDb->LocalTokenNumberTableOffset);
+
+ Size = (LocalTokenNumberTable[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 (TmpTokenNumber, &MaxSize);
+ } 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
+DxePcdGet8Ex (
+ IN CONST EFI_GUID *Guid,
+ IN UINTN ExTokenNumber
+ )
+{
+ if (CheckPcdInFsp (Guid)) {
+ ASSERT (CachedFspPiPcdProtocol != NULL);
+ return CachedFspPiPcdProtocol->Get8 (Guid, 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
+DxePcdGet16Ex (
+ IN CONST EFI_GUID *Guid,
+ IN UINTN ExTokenNumber
+ )
+{
+ if (CheckPcdInFsp (Guid)) {
+ ASSERT (CachedFspPiPcdProtocol != NULL);
+ return CachedFspPiPcdProtocol->Get16 (Guid, 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
+DxePcdGet32Ex (
+ IN CONST EFI_GUID *Guid,
+ IN UINTN ExTokenNumber
+ )
+{
+ if (CheckPcdInFsp (Guid)) {
+ ASSERT (CachedFspPiPcdProtocol != NULL);
+ return CachedFspPiPcdProtocol->Get32 (Guid, 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
+DxePcdGet64Ex (
+ IN CONST EFI_GUID *Guid,
+ IN UINTN ExTokenNumber
+ )
+{
+ if (CheckPcdInFsp (Guid)) {
+ ASSERT (CachedFspPiPcdProtocol != NULL);
+ return CachedFspPiPcdProtocol->Get64 (Guid, 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 retrived.
+
+**/
+VOID *
+EFIAPI
+DxePcdGetPtrEx (
+ IN CONST EFI_GUID *Guid,
+ IN UINTN ExTokenNumber
+ )
+{
+ if (CheckPcdInFsp (Guid)) {
+ ASSERT (CachedFspPiPcdProtocol != NULL);
+ return CachedFspPiPcdProtocol->GetPtr (Guid, 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
+DxePcdGetBoolEx (
+ IN CONST EFI_GUID *Guid,
+ IN UINTN ExTokenNumber
+ )
+{
+ if (CheckPcdInFsp (Guid)) {
+ ASSERT (CachedFspPiPcdProtocol != NULL);
+ return CachedFspPiPcdProtocol->GetBool (Guid, 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
+DxePcdGetSizeEx (
+ IN CONST EFI_GUID *Guid,
+ IN UINTN ExTokenNumber
+ )
+{
+ if (CheckPcdInFsp (Guid)) {
+ ASSERT (CachedFspPiPcdProtocol != NULL);
+ return CachedFspPiPcdProtocol->GetSize (Guid, ExTokenNumber);
+ }
+
+ return DxePcdGetSize (GetExPcdTokenNumber (Guid, (UINT32)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
+DxePcdSet8 (
+ 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
+DxePcdSet16 (
+ 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
+DxePcdSet32 (
+ 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
+DxePcdSet64 (
+ 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
+DxePcdSetPtr (
+ 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
+DxePcdSetBool (
+ 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
+DxePcdSet8Ex (
+ IN CONST EFI_GUID *Guid,
+ IN UINTN ExTokenNumber,
+ IN UINT8 Value
+ )
+{
+ if (CheckPcdInFsp (Guid)) {
+ ASSERT (CachedFspPiPcdProtocol != NULL);
+ return CachedFspPiPcdProtocol->Set8 (Guid, ExTokenNumber, 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
+DxePcdSet16Ex (
+ IN CONST EFI_GUID *Guid,
+ IN UINTN ExTokenNumber,
+ IN UINT16 Value
+ )
+{
+ //
+ // PcdSetNvStoreDefaultId should be set in PEI phase to take effect.
+ //
+ ASSERT (
+ !(CompareGuid (Guid, &gEfiMdeModulePkgTokenSpaceGuid) &&
+ (ExTokenNumber == PcdToken (PcdSetNvStoreDefaultId)))
+ );
+ if (CheckPcdInFsp (Guid)) {
+ ASSERT (CachedFspPiPcdProtocol != NULL);
+ return CachedFspPiPcdProtocol->Set16 (Guid, ExTokenNumber, 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
+DxePcdSet32Ex (
+ IN CONST EFI_GUID *Guid,
+ IN UINTN ExTokenNumber,
+ IN UINT32 Value
+ )
+{
+ if (CheckPcdInFsp (Guid)) {
+ ASSERT (CachedFspPiPcdProtocol != NULL);
+ return CachedFspPiPcdProtocol->Set32 (Guid, ExTokenNumber, 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
+DxePcdSet64Ex (
+ IN CONST EFI_GUID *Guid,
+ IN UINTN ExTokenNumber,
+ IN UINT64 Value
+ )
+{
+ if (CheckPcdInFsp (Guid)) {
+ ASSERT (CachedFspPiPcdProtocol != NULL);
+ return CachedFspPiPcdProtocol->Set64 (Guid, ExTokenNumber, 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] 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
+DxePcdSetPtrEx (
+ IN CONST EFI_GUID *Guid,
+ IN UINTN ExTokenNumber,
+ IN OUT UINTN *SizeOfBuffer,
+ IN VOID *Buffer
+ )
+{
+ if (CheckPcdInFsp (Guid)) {
+ ASSERT (CachedFspPiPcdProtocol != NULL);
+ return CachedFspPiPcdProtocol->SetPtr (Guid, ExTokenNumber, SizeOfBuffer, Buffer);
+ }
+
+ return ExSetWorker (ExTokenNumber, Guid, 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] 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
+DxePcdSetBoolEx (
+ IN CONST EFI_GUID *Guid,
+ IN UINTN ExTokenNumber,
+ IN BOOLEAN Value
+ )
+{
+ if (CheckPcdInFsp (Guid)) {
+ ASSERT (CachedFspPiPcdProtocol != NULL);
+ return CachedFspPiPcdProtocol->SetBool (Guid, ExTokenNumber, 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] TokenNumber 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
+DxeRegisterCallBackOnSet (
+ IN CONST EFI_GUID *Guid OPTIONAL,
+ IN UINTN TokenNumber,
+ IN PCD_PROTOCOL_CALLBACK CallBackFunction
+ )
+{
+ EFI_STATUS Status;
+
+ if (CallBackFunction == NULL) {
+ return EFI_INVALID_PARAMETER;
+ }
+
+ //
+ // Aquire lock to prevent reentrance from TPL_CALLBACK level
+ //
+ EfiAcquireLock (&mPcdDatabaseLock);
+
+ Status = DxeRegisterCallBackWorker (TokenNumber, Guid, CallBackFunction);
+
+ EfiReleaseLock (&mPcdDatabaseLock);
+
+ return Status;
+}
+
+/**
+ 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] TokenNumber 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
+DxeUnRegisterCallBackOnSet (
+ IN CONST EFI_GUID *Guid OPTIONAL,
+ IN UINTN TokenNumber,
+ IN PCD_PROTOCOL_CALLBACK CallBackFunction
+ )
+{
+ EFI_STATUS Status;
+
+ if (CallBackFunction == NULL) {
+ return EFI_INVALID_PARAMETER;
+ }
+
+ //
+ // Aquire lock to prevent reentrance from TPL_CALLBACK level
+ //
+ EfiAcquireLock (&mPcdDatabaseLock);
+
+ Status = DxeUnRegisterCallBackWorker (TokenNumber, Guid, CallBackFunction);
+
+ EfiReleaseLock (&mPcdDatabaseLock);
+
+ return Status;
+}
+
+/**
+ 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 retrieve the next token.
+ 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
+DxePcdGetNextToken (
+ IN CONST EFI_GUID *Guid OPTIONAL,
+ IN OUT UINTN *TokenNumber
+ )
+{
+ EFI_STATUS Status;
+ BOOLEAN PeiExMapTableEmpty;
+ BOOLEAN DxeExMapTableEmpty;
+
+ Status = EFI_NOT_FOUND;
+ PeiExMapTableEmpty = mPeiExMapTableEmpty;
+ DxeExMapTableEmpty = mDxeExMapTableEmpty;
+
+ //
+ // Scan the local token space
+ //
+ if (Guid == NULL) {
+ // 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.
+ if (((*TokenNumber + 1 > mPeiNexTokenCount + 1) && (*TokenNumber + 1 <= mPeiLocalTokenCount + 1)) ||
+ ((*TokenNumber + 1 > (mPeiLocalTokenCount + mDxeNexTokenCount + 1))))
+ {
+ return EFI_NOT_FOUND;
+ }
+
+ (*TokenNumber)++;
+ if ((*TokenNumber + 1 > mPeiNexTokenCount + 1) &&
+ (*TokenNumber + 1 <= mPeiLocalTokenCount + 1))
+ {
+ //
+ // The first Non-Ex type Token Number for DXE PCD
+ // database is mPeiLocalTokenCount + 1
+ //
+ if (mDxeNexTokenCount > 0) {
+ *TokenNumber = mPeiLocalTokenCount + 1;
+ } else {
+ *TokenNumber = PCD_INVALID_TOKEN_NUMBER;
+ return EFI_NOT_FOUND;
+ }
+ } else if (*TokenNumber + 1 > mDxeNexTokenCount + mPeiLocalTokenCount + 1) {
+ *TokenNumber = PCD_INVALID_TOKEN_NUMBER;
+ return EFI_NOT_FOUND;
+ }
+
+ return EFI_SUCCESS;
+ }
+
+ if (PeiExMapTableEmpty && DxeExMapTableEmpty) {
+ return EFI_NOT_FOUND;
+ }
+
+ if (!PeiExMapTableEmpty) {
+ Status = ExGetNextTokeNumber (
+ Guid,
+ TokenNumber,
+ (EFI_GUID *)((UINT8 *)mPcdDatabase.PeiDb + mPcdDatabase.PeiDb->GuidTableOffset),
+ mPeiGuidTableSize,
+ (DYNAMICEX_MAPPING *)((UINT8 *)mPcdDatabase.PeiDb + mPcdDatabase.PeiDb->ExMapTableOffset),
+ mPeiExMapppingTableSize
+ );
+ }
+
+ if (Status == EFI_SUCCESS) {
+ return Status;
+ }
+
+ if (!DxeExMapTableEmpty) {
+ Status = ExGetNextTokeNumber (
+ Guid,
+ TokenNumber,
+ (EFI_GUID *)((UINT8 *)mPcdDatabase.DxeDb + mPcdDatabase.DxeDb->GuidTableOffset),
+ mDxeGuidTableSize,
+ (DYNAMICEX_MAPPING *)((UINT8 *)mPcdDatabase.DxeDb + mPcdDatabase.DxeDb->ExMapTableOffset),
+ mDxeExMapppingTableSize
+ );
+ }
+
+ return Status;
+}
+
+/**
+ Get all token space guid table which is different with given token space guid.
+
+ @param ExMapTableSize The size of ExMapTable in item
+ @param ExMapTable Token space guid table that want to be scaned.
+ @param GuidTable Guid table
+
+ @return all token space guid table which is different with given token space guid.
+
+**/
+EFI_GUID **
+GetDistinctTokenSpace (
+ IN OUT UINTN *ExMapTableSize,
+ IN DYNAMICEX_MAPPING *ExMapTable,
+ IN EFI_GUID *GuidTable
+ )
+{
+ EFI_GUID **DistinctTokenSpace;
+ UINTN OldGuidIndex;
+ UINTN TsIdx;
+ UINTN TempTsIdx;
+ UINTN Idx;
+ BOOLEAN Match;
+
+ DistinctTokenSpace = AllocateZeroPool (*ExMapTableSize * sizeof (EFI_GUID *));
+ ASSERT (DistinctTokenSpace != NULL);
+
+ TsIdx = 0;
+ OldGuidIndex = ExMapTable[0].ExGuidIndex;
+ DistinctTokenSpace[TsIdx] = &GuidTable[OldGuidIndex];
+ for (Idx = 1; Idx < *ExMapTableSize; Idx++) {
+ Match = FALSE;
+ OldGuidIndex = ExMapTable[Idx].ExGuidIndex;
+ for (TempTsIdx = 0; TempTsIdx <= TsIdx; TempTsIdx++) {
+ if (&GuidTable[OldGuidIndex] == DistinctTokenSpace[TempTsIdx]) {
+ //
+ // Have recorded this GUID.
+ //
+ Match = TRUE;
+ break;
+ }
+ }
+
+ if (!Match) {
+ DistinctTokenSpace[++TsIdx] = &GuidTable[OldGuidIndex];
+ }
+ }
+
+ //
+ // The total number of Distinct Token Space
+ // is TsIdx + 1 because we use TsIdx as a index
+ // to the DistinctTokenSpace[]
+ //
+ *ExMapTableSize = TsIdx + 1;
+ return DistinctTokenSpace;
+}
+
+/**
+ 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
+DxePcdGetNextTokenSpace (
+ IN OUT CONST EFI_GUID **Guid
+ )
+{
+ UINTN Idx;
+ UINTN Idx2;
+ UINTN Idx3;
+ UINTN PeiTokenSpaceTableSize;
+ UINTN DxeTokenSpaceTableSize;
+ EFI_GUID **PeiTokenSpaceTable;
+ EFI_GUID **DxeTokenSpaceTable;
+ BOOLEAN Match;
+ BOOLEAN PeiExMapTableEmpty;
+ BOOLEAN DxeExMapTableEmpty;
+
+ ASSERT (Guid != NULL);
+
+ PeiExMapTableEmpty = mPeiExMapTableEmpty;
+ DxeExMapTableEmpty = mDxeExMapTableEmpty;
+
+ if (PeiExMapTableEmpty && DxeExMapTableEmpty) {
+ return EFI_NOT_FOUND;
+ }
+
+ if (TmpTokenSpaceBuffer[0] == NULL) {
+ PeiTokenSpaceTableSize = 0;
+
+ if (!PeiExMapTableEmpty) {
+ PeiTokenSpaceTableSize = mPeiExMapppingTableSize / sizeof (DYNAMICEX_MAPPING);
+ PeiTokenSpaceTable = GetDistinctTokenSpace (
+ &PeiTokenSpaceTableSize,
+ (DYNAMICEX_MAPPING *)((UINT8 *)mPcdDatabase.PeiDb + mPcdDatabase.PeiDb->ExMapTableOffset),
+ (EFI_GUID *)((UINT8 *)mPcdDatabase.PeiDb + mPcdDatabase.PeiDb->GuidTableOffset)
+ );
+ CopyMem (TmpTokenSpaceBuffer, PeiTokenSpaceTable, sizeof (EFI_GUID *) * PeiTokenSpaceTableSize);
+ TmpTokenSpaceBufferCount = PeiTokenSpaceTableSize;
+ FreePool (PeiTokenSpaceTable);
+ }
+
+ if (!DxeExMapTableEmpty) {
+ DxeTokenSpaceTableSize = mDxeExMapppingTableSize / sizeof (DYNAMICEX_MAPPING);
+ DxeTokenSpaceTable = GetDistinctTokenSpace (
+ &DxeTokenSpaceTableSize,
+ (DYNAMICEX_MAPPING *)((UINT8 *)mPcdDatabase.DxeDb + mPcdDatabase.DxeDb->ExMapTableOffset),
+ (EFI_GUID *)((UINT8 *)mPcdDatabase.DxeDb + mPcdDatabase.DxeDb->GuidTableOffset)
+ );
+
+ //
+ // Make sure EFI_GUID in DxeTokenSpaceTable does not exist in PeiTokenSpaceTable
+ //
+ for (Idx2 = 0, Idx3 = PeiTokenSpaceTableSize; Idx2 < DxeTokenSpaceTableSize; Idx2++) {
+ Match = FALSE;
+ for (Idx = 0; Idx < PeiTokenSpaceTableSize; Idx++) {
+ if (CompareGuid (TmpTokenSpaceBuffer[Idx], DxeTokenSpaceTable[Idx2])) {
+ Match = TRUE;
+ break;
+ }
+ }
+
+ if (!Match) {
+ TmpTokenSpaceBuffer[Idx3++] = DxeTokenSpaceTable[Idx2];
+ }
+ }
+
+ TmpTokenSpaceBufferCount = Idx3;
+ FreePool (DxeTokenSpaceTable);
+ }
+ }
+
+ if (*Guid == NULL) {
+ *Guid = TmpTokenSpaceBuffer[0];
+ return EFI_SUCCESS;
+ }
+
+ for (Idx = 0; Idx < TmpTokenSpaceBufferCount; Idx++) {
+ if (CompareGuid (*Guid, TmpTokenSpaceBuffer[Idx])) {
+ if (Idx == TmpTokenSpaceBufferCount - 1) {
+ //
+ // It has been the last token namespace.
+ //
+ *Guid = NULL;
+ return EFI_NOT_FOUND;
+ } else {
+ Idx++;
+ *Guid = TmpTokenSpaceBuffer[Idx];
+ return EFI_SUCCESS;
+ }
+ }
+ }
+
+ return EFI_NOT_FOUND;
+}
diff --git a/Platform/AMD/VanGoghBoard/Override/edk2/MdeModulePkg/Universal/PCD/Dxe/Pcd.inf b/Platform/AMD/VanGoghBoard/Override/edk2/MdeModulePkg/Universal/PCD/Dxe/Pcd.inf
new file mode 100644
index 0000000000..0799e4cd96
--- /dev/null
+++ b/Platform/AMD/VanGoghBoard/Override/edk2/MdeModulePkg/Universal/PCD/Dxe/Pcd.inf
@@ -0,0 +1,366 @@
+## @file
+# PCD DXE Module INF file
+#
+# Copyright (C) 2024 Advanced Micro Devices, Inc. All rights reserved.<BR>
+# SPDX-License-Identifier: BSD-2-Clause-Patent
+#
+##
+
+## @file
+# PCD DXE driver manage database contains all dynamic PCD entries and produce the implementation of PCD protocol.
+#
+# This version PCD DXE depends on the external PCD database binary file, not built in PCD data base.
+# There are two PCD Protocols as follows:
+# 1) PCD_PROTOCOL
+# It is EDKII implementation which support Dynamic/DynamicEx type Pcds.
+# 2) EFI_PCD_PROTOCOL
+# It is defined by PI specification 1.2, Vol 3 which only support dynamicEx
+# type Pcd.
+#
+# For dynamicEx type PCD, it is compatible between PCD_PROTOCOL and EFI_PCD_PROTOCOL.
+# PCD DXE driver will produce above two protocols at same time.
+#
+# PCD database is generated as the separate binary image at build time. The binary image
+# will be intergrated into Firmware volume together with PCD driver.
+#
+# ////////////////////////////////////////////////////////////////////////////////
+# // //
+# // Introduction of PCD database //
+# // //
+# ////////////////////////////////////////////////////////////////////////////////
+#
+# 1, Introduction
+# PCD database hold all dynamic type PCD information. The structure of PEI PCD
+# database is generated by build tools according to dynamic PCD usage for
+# specified platform.
+#
+# 2, Dynamic Type PCD
+# Dynamic type PCD is used for the configuration/setting which value is determined
+# dynamic. In contrast, the value of static type PCD (FeatureFlag, FixedPcd,
+# PatchablePcd) is fixed in final generated FD image in build time.
+#
+# 2.1 The "dynamic" determination means one of below cases:
+# a) The PCD setting value is produced by someone driver and consumed by
+# other driver in execution time.
+# b) The PCD setting value is set/get by user from FrontPage.
+# c) The PCD setting value is produced by platform OEM vendor in specified area.
+#
+# 2.2 According to module distribution way, dynamic PCD could be classfied as:
+# a) Dynamic:
+# If module is released in source code and will be built with platform
+# DSC, the dynamic PCD used by this module can be accessed as:
+# PcdGetxx(PcdSampleDynamicPcd);
+# In building platform, build tools will translate PcdSampleDynamicPcd to
+# pair of {Token Space Guid: Token Number} for this PCD.
+# b) DynamicEx:
+# If module is release as binary and will not pariticpate platform building,
+# the dynamic PCD used by this module need be accessed as:
+# PcdGetxxEx(gEfiMyTokenspaceGuid, PcdSampleDynamicPcd)
+# Developer need explicity gives {Token Space Guid:Token Number} as parameter
+# in writting source code.
+#
+# 2.3 According to PCD value's storage method, dynamic PCD could be classfied as:
+# a) Default Storage:
+# - The PCD value is stored in PCD database maintained by PCD driver in boot
+# time memory.
+# - This type is used for communication between PEIM/DXE driver, DXE/DXE
+# driver. But all set/get value will be losted after boot-time memory
+# is turn off.
+# - [PcdsDynamicDefault] is used as section name for this type PCD in
+# platform DSC file. [PcdsDynamicExDefault] is used for dynamicEx type PCD.
+#
+# b) Variable Storage:
+# - The PCD value is stored in variable area.
+# - As default storage type, this type PCD could be used for PEI/DXE driver
+# communication. But beside it, this type PCD could also be used to store
+# the value associate with a HII setting via variable interface.
+# - In PEI phase, the PCD value could only be got but can not be set due
+# to variable area is readonly.
+# - [PcdsDynamicHii] is used as section name for this type PCD in platform
+# DSC file. [PcdsDynamicExHii] is for dynamicEx type PCD.
+#
+# c) OEM specificed storage area:
+# - The PCD value is stored in OEM specified area which base address is
+# specified by PCD setting - PcdVpdBaseAddress64 or PcdVpdBaseAddress.
+# - The area is read only for PEI and DXE phase.
+# - [PcdsDynamicVpd] is used as section name for this type PCD in platform
+# DSC file. [PcdsDynamicExVpd] is for dynamicex type PCD.
+#
+# 2.4 When and how to use dynamic PCD
+# Module developer do not care the used PCD is dynamic or static when writting
+# source code/INF. Dynamic PCD and dynamic type is pointed by platform integrator
+# in platform DSC file. Please ref section 2.3 to get matching between dynamic
+# PCD type and section name in DSC file.
+#
+# 3, PCD database:
+# Although dynamic PCD could be in different storage type as above description,
+# but the basic information and default value for all dynamic PCD is hold
+# by PCD database maintained by PEI/DXE driver.
+#
+# As the whole EFI BIOS boot path is divided into PEI/DXE phase, the PCD database
+# also is divided into Pei/Dxe database maintaied by PcdPeim/PcdDxe driver separatly.
+# To make PcdPeim's driver image smaller, PEI PCD database only hold all dynamic
+# PCD information used in PEI phase or use in both PEI/DXE phase. And DXE PCD
+# database contains all PCDs used in PEI/DXE phase in memory.
+#
+# Build tool will generate PCD database into the separate binary file for
+# PEI/DXE PCD driver according to dynamic PCD section in platform DSC file.
+#
+# 3.1 PcdPeim and PcdDxe
+# PEI PCD database is maintained by PcdPeim driver run from flash. PcdPeim driver
+# build guid hob in temporary memory and copy the binary data base from flash
+# to temporary memory for PEI PCD database.
+# DXE PCD database is maintained by PcdDxe driver.At entry point of PcdDxe driver,
+# a new PCD database is allocated in boot-time memory which including all
+# PEI PCD and DXE PCD entry.
+#
+# Pcd driver should run as early as possible before any other driver access
+# dynamic PCD's value. PEI/DXE "Apriori File" mechanism make it possible by
+# making PcdPeim/PcdDxe as first dispatching driver in PEI/DXE phase.
+#
+# 3.2 Token space Guid/Token number, Platform token, Local token number
+# Dynamic PCD
+# +-----------+ +---------+
+# |TokenSpace | |Platform |
+# | Guid | build tool | Token |
+# | + +-------------->| Number |
+# | Token | +---------+`._
+# | Number | `.
+# +-----------+ `. +------+
+# `-|Local |
+# |Token |
+# DynamicEx PCD ,-|Number|
+# +-----------+ ,-' +------+
+# |TokenSpace | ,-'
+# | Guid | _,-'
+# | + +.'
+# | Token |
+# | Number |
+# +-----------+
+#
+#
+# 3.2.1 Pair of Token space guid + Token number
+# Any type PCD is identified by pair of "TokenSpaceGuid + TokeNumber". But it
+# is not easy maintained by PCD driver, and hashed token number will make
+# searching slowly.
+#
+# 3.2.2 Platform Token Number
+# "Platform token number" concept is introduced for mapping to a pair of
+# "TokenSpaceGuid + TokenNumber". The platform token number is generated by
+# build tool in autogen.h and all of them are continual in a platform scope
+# started from 1.(0 meaning invalid internal token number)
+# With auto-generated "platform token number", PcdGet(PcdSampleDynamicPcd)
+# in source code is translated to LibPcdGet(_PCD_TOKEN_PcdSampleDynamicPcd)
+# in autogen.h.
+# Notes: The mapping between pair of "tokenspace guid + token number" and
+# "internal token number" need build tool establish, so "platform token number"
+# mechanism is not suitable for binary module which use DynamicEx type PCD.
+# To access a dynamicEx type PCD, pair of "token space guid/token number" all need
+# to be specificed for PcdSet/PcdGet accessing macro.
+#
+# Platform Token Number is started from 1, and inceased continuous. From whole
+# platform scope, there are two zones: PEI Zone and DXE Zone
+# | Platform Token Number
+# ----------|----------------------------------------------------------------
+# PEI Zone: | 1 ~ PEI_LOCAL_TOKEN_NUMBER
+# DXE Zone: | (PEI_LOCAL_TOKEN_NUMBER + 1) ~ (PEI_LOCAL_TOKEN_NUMBER + DXE_LOCAL_TOKEN_NUMBER)
+#
+# 3.2.3 Local Token Number
+# To fast searching a PCD entry in PCD database, PCD driver translate
+# platform token number to local token number via a mapping table.
+# For binary DynamicEx type PCD, there is a another mapping table to translate
+# "token space guid + token number" to local token number directly.
+# Local token number is identifier for all internal interface in PCD PEI/DXE
+# driver.
+#
+# A local token number is a 32-bit value in following meaning:
+# 32 ------------- 28 ---------- 24 -------- 0
+# | PCD type mask | Datum Type | Offset |
+# +-----------------------------------------+
+# where:
+# PCd type mask: indicate Pcd type from following macro:
+# PCD_TYPE_DATA
+# PCD_TYPE_HII
+# PCD_TYPE_VPD
+# PCD_TYPE_STRING
+# Datum Type : indicate PCD vaue type from following macro:
+# PCD_DATUM_TYPE_POINTER
+# PCD_DATUM_TYPE_UINT8
+# PCD_DATUM_TYPE_UINT16
+# PCD_DATUM_TYPE_UINT32
+# PCD_DATUM_TYPE_UINT64
+# Offset : indicate the related offset of PCD value in PCD database array.
+# Based on local token number, PCD driver could fast determine PCD type, value
+# type and get PCD entry from PCD database.
+#
+# 3.3 PCD Database binary file
+# PCD Database binary file will be created at build time as the standalone binary image.
+# To understand the binary image layout, PCD Database C structure is still generated
+# as comments by build tools in PCD driver's autogen.h/
+# autogen.c file. In generated C structure, following information is stored:
+# - ExMapTable: This table is used translate a binary dynamicex type PCD's
+# "tokenguid + token" to local token number.
+# - LocalTokenNumberTable:
+# This table stores all local token number in array, use "Internal
+# token number" as array index to get PCD entry's offset fastly.
+# - SizeTable: This table stores the size information for all PCD entry.
+# - GuidTable: This table stores guid value for DynamicEx's token space,
+# HII type PCD's variable GUID.
+# - SkuIdTable: TBD
+# - SystemSkuId: TBD
+# - PCD value structure:
+# Every PCD has a value record in PCD database. For different
+# datum type PCD has different record structure which will be
+# introduced in 3.3.1
+#
+# In a PCD database structure, there are two major area: Init and UnInit.
+# Init area is use stored above PCD internal structure such as ExMapTable,
+# LocalTokenNumberTable etc and the (default) value of PCD which has default
+# value specified in platform DSC file.
+# Unint area is used stored the value of PCD which has no default value in
+# platform DSC file, the value of NULL, 0 specified in platform DSC file can
+# be seemed as "no default value".
+#
+# 3.3.1 Simple Sample PCD Database C Structure
+# A general sample of PCD database structue is as follows:
+# typedef struct _PCD_DATABASE {
+# typedef struct _PCD_DATABASE_INIT {
+# //===== Following is PCD database internal maintain structures
+# DYNAMICEX_MAPPING ExMapTable[PEI_EXMAPPING_TABLE_SIZE];
+# UINT32 LocalTokenNumberTable[PEI_LOCAL_TOKEN_NUMBER_TABLE_SIZE];
+# GUID GuidTable[PEI_GUID_TABLE_SIZE];
+# SIZE_INFO SizeTable[PEI_SIZE_TABLE_SIZE];
+# UINT8 SkuIdTable[PEI_SKUID_TABLE_SIZE];
+# SKU_ID SystemSkuId;
+#
+# //===== Following is value structure for PCD with default value
+# ....
+# ....
+# ....
+# } Init;
+# typedef struct _PCD_DATABSE_UNINIT {
+# //==== Following is value structure for PCD without default value
+# ....
+# ....
+# } UnInit;
+# }
+#
+# 3.3.2 PCD value structure in PCD database C structure
+# The value's structure is generated by build tool in PCD database C structure.
+# The PCDs in different datum type has different value structure.
+#
+# 3.3.2.1 UINT8/UINT16/UINT32/UINT64 datum type PCD
+# The C structure for these datum type PCD is just a UINT8/UINT16/UINT32/UINT64
+# data member in PCD database, For example:
+# UINT16 PcdHardwareErrorRecordLevel_d3705011_bc19_4af7_be16_f68030378c15_VariableDefault_0;
+# Above structure is generated by build tool, the member name is "PcdCName_Guidvalue"
+# Member type is UINT16 according to PcdHardwareErrorRecordLevel declaration
+# in DEC file.
+#
+# 3.3.2.2 VOID* datum type PCD
+# The value of VOID* datum type PCD is a UINT8/UINT16 array in PCD database.
+#
+# 3.3.2.2.1 VOID* - string type
+# If the default value for VOID* datum type PCD like L"xxx", the PCD is
+# used for unicode string, and C structure of this datum type PCD is
+# UINT16 string array in PCD database, for example:
+# UINT16 StringTable[29];
+# The number of 29 in above sample is max size of a unicode string.
+#
+# If the default value for VOID* datum type PCD like "xxx", the PCD is
+# used for ascii string, and C structure of this datum type PCD is
+# UINT8 string array in PCD database, for example:
+# UINT8 StringTable[20];
+# The number of 20 in above sample is max size of a ascii string.
+#
+# 3.3.2.2.2 VOID* - byte array
+# If the default value of VOID* datum type PCD like {'0x29', '0x01', '0xf2'}
+# the PCD is used for byte array. The generated structrue is same as
+# above ascii string table,
+# UINT8 StringTable[13];
+# The number of 13 in above sample is max size of byte array.
+#
+# 3.3.3 Some utility structures in PCD Database
+# 3.3.3.1 GuidTable
+# GuidTable array is used to store all related GUID value in PCD database:
+# - Variable GUID for HII type PCD
+# - Token space GUID for dynamicex type PCD
+#
+# Copyright (c) 2006 - 2018, Intel Corporation. All rights reserved.<BR>
+#
+# SPDX-License-Identifier: BSD-2-Clause-Patent
+#
+#
+##
+
+[Defines]
+ INF_VERSION = 0x00010005
+ BASE_NAME = PcdDxe
+ MODULE_UNI_FILE = PcdDxe.uni
+ FILE_GUID = 80CF7257-87AB-47f9-A3FE-D50B76D89541
+ MODULE_TYPE = DXE_DRIVER
+ VERSION_STRING = 4.0
+ PCD_IS_DRIVER = DXE_PCD_DRIVER
+ ENTRY_POINT = PcdDxeInit
+
+#
+# The following information is for reference only and not required by the build tools.
+#
+# VALID_ARCHITECTURES = IA32 X64 EBC
+#
+
+[Sources]
+ Pcd.c
+ Service.c
+ Service.h
+
+[Packages]
+ MdePkg/MdePkg.dec
+ MdeModulePkg/MdeModulePkg.dec
+ ChachaniBoardPkg/Project.dec
+ Override/edk2/Fsp2WrapperPkg/Fsp2WrapperPkg.dec
+
+[LibraryClasses]
+ UefiRuntimeServicesTableLib
+ BaseMemoryLib
+ UefiBootServicesTableLib
+ MemoryAllocationLib
+ HobLib
+ UefiDriverEntryPoint
+ UefiLib
+ DebugLib
+ BaseLib
+ PcdLib
+ DxeServicesLib
+
+[Guids]
+ gPcdDataBaseHobGuid ## SOMETIMES_CONSUMES ## HOB
+ gPcdDataBaseSignatureGuid ## CONSUMES ## GUID # PCD database signature GUID.
+ gEfiMdeModulePkgTokenSpaceGuid ## SOMETIMES_CONSUMES ## GUID
+ gEfiAmdAgesaModulePkgTokenSpaceGuid
+ gEfiAmdAgesaPkgTokenSpaceGuid
+ gAmdCpmPkgTokenSpaceGuid
+ gAmdFspPkgGuid
+
+[Protocols]
+ gPcdProtocolGuid ## PRODUCES
+ gEfiPcdProtocolGuid ## PRODUCES
+ gGetPcdInfoProtocolGuid ## SOMETIMES_PRODUCES
+ gEfiGetPcdInfoProtocolGuid ## SOMETIMES_PRODUCES
+ ## NOTIFY
+ ## SOMETIMES_CONSUMES
+ gEdkiiVariableLockProtocolGuid
+ gFspEfiPcdProtocolGuid
+ gFspEfiGetPcdInfoProtocolGuid
+
+[Pcd]
+ gEfiMdeModulePkgTokenSpaceGuid.PcdVpdBaseAddress ## SOMETIMES_CONSUMES
+ gEfiMdeModulePkgTokenSpaceGuid.PcdVpdBaseAddress64 ## SOMETIMES_CONSUMES
+ gEfiMdeModulePkgTokenSpaceGuid.PcdSetNvStoreDefaultId ## SOMETIMES_CONSUMES
+ gIntelFsp2WrapperTokenSpaceGuid.PcdFspModeSelection
+
+[Depex]
+ TRUE
+
+[UserExtensions.TianoCore."ExtraFiles"]
+ PcdDxeExtra.uni
diff --git a/Platform/AMD/VanGoghBoard/Override/edk2/MdeModulePkg/Universal/PCD/Pei/Pcd.c b/Platform/AMD/VanGoghBoard/Override/edk2/MdeModulePkg/Universal/PCD/Pei/Pcd.c
new file mode 100644
index 0000000000..2a4045bd36
--- /dev/null
+++ b/Platform/AMD/VanGoghBoard/Override/edk2/MdeModulePkg/Universal/PCD/Pei/Pcd.c
@@ -0,0 +1,1876 @@
+/** @file
+ All Pcd Ppi services are implemented here.
+
+Copyright (C) 2024 Advanced Micro Devices, Inc. All rights reserved.<BR>
+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"
+
+extern EFI_GUID gEfiAmdAgesaModulePkgTokenSpaceGuid;
+extern EFI_GUID gEfiAmdAgesaPkgTokenSpaceGuid;
+extern EFI_GUID gFspEfiGetPcdInfoPpiGuid;
+extern EFI_GUID gFspEfiPeiPcdPpiGuid;
+
+STATIC
+BOOLEAN
+CheckPcdInFsp (
+ IN CONST EFI_GUID *InputGuid
+ )
+{
+ if ( (FixedPcdGet8 (PcdFspModeSelection) == 0) // Dispatch mode
+ && ( CompareGuid (InputGuid, &gEfiAmdAgesaModulePkgTokenSpaceGuid) // AgesaModulePkg
+ || CompareGuid (InputGuid, &gEfiAmdAgesaPkgTokenSpaceGuid) // AgesaPkg
+ || CompareGuid (InputGuid, &gAmdFspPkgGuid) // FspPkg
+ || CompareGuid (InputGuid, &gAmdCpmPkgTokenSpaceGuid))) // AmdCpmPkg
+ {
+ return TRUE;
+ }
+
+ return FALSE;
+}
+
+///
+/// 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
+ )
+{
+ if (CheckPcdInFsp (Guid)) {
+ EFI_GET_PCD_INFO_PPI *FspPcdGetInfoPpi = NULL;
+ PeiServicesLocatePpi (&gFspEfiGetPcdInfoPpiGuid, 0, NULL, (VOID **)&FspPcdGetInfoPpi);
+ ASSERT (FspPcdGetInfoPpi != NULL);
+ return FspPcdGetInfoPpi->GetInfo (Guid, TokenNumber, 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
+ )
+{
+ if (CheckPcdInFsp (Guid)) {
+ EFI_PEI_PCD_PPI *FspPcdPpi = NULL;
+ PeiServicesLocatePpi (&gFspEfiPeiPcdPpiGuid, 0, NULL, (VOID **)&FspPcdPpi);
+ ASSERT (FspPcdPpi != NULL);
+ return FspPcdPpi->Get8 (Guid, 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
+ )
+{
+ if (CheckPcdInFsp (Guid)) {
+ EFI_PEI_PCD_PPI *FspPcdPpi = NULL;
+ PeiServicesLocatePpi (&gFspEfiPeiPcdPpiGuid, 0, NULL, (VOID **)&FspPcdPpi);
+ ASSERT (FspPcdPpi != NULL);
+ return FspPcdPpi->Get16 (Guid, 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
+ )
+{
+ if (CheckPcdInFsp (Guid)) {
+ EFI_PEI_PCD_PPI *FspPcdPpi = NULL;
+ PeiServicesLocatePpi (&gFspEfiPeiPcdPpiGuid, 0, NULL, (VOID **)&FspPcdPpi);
+ ASSERT (FspPcdPpi != NULL);
+ return FspPcdPpi->Get32 (Guid, 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
+ )
+{
+ if (CheckPcdInFsp (Guid)) {
+ EFI_PEI_PCD_PPI *FspPcdPpi = NULL;
+ PeiServicesLocatePpi (&gFspEfiPeiPcdPpiGuid, 0, NULL, (VOID **)&FspPcdPpi);
+ ASSERT (FspPcdPpi != NULL);
+ return FspPcdPpi->Get64 (Guid, 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
+ )
+{
+ if (CheckPcdInFsp (Guid)) {
+ EFI_PEI_PCD_PPI *FspPcdPpi = NULL;
+ PeiServicesLocatePpi (&gFspEfiPeiPcdPpiGuid, 0, NULL, (VOID **)&FspPcdPpi);
+ ASSERT (FspPcdPpi != NULL);
+ return FspPcdPpi->GetPtr (Guid, 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
+ )
+{
+ if (CheckPcdInFsp (Guid)) {
+ EFI_PEI_PCD_PPI *FspPcdPpi = NULL;
+ PeiServicesLocatePpi (&gFspEfiPeiPcdPpiGuid, 0, NULL, (VOID **)&FspPcdPpi);
+ ASSERT (FspPcdPpi != NULL);
+ return FspPcdPpi->GetBool (Guid, 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
+ )
+{
+ if (CheckPcdInFsp (Guid)) {
+ EFI_PEI_PCD_PPI *FspPcdPpi = NULL;
+ PeiServicesLocatePpi (&gFspEfiPeiPcdPpiGuid, 0, NULL, (VOID **)&FspPcdPpi);
+ ASSERT (FspPcdPpi != NULL);
+ return FspPcdPpi->GetSize (Guid, 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
+ )
+{
+ if (CheckPcdInFsp (Guid)) {
+ EFI_PEI_PCD_PPI *FspPcdPpi = NULL;
+ PeiServicesLocatePpi (&gFspEfiPeiPcdPpiGuid, 0, NULL, (VOID **)&FspPcdPpi);
+ ASSERT (FspPcdPpi != NULL);
+ return FspPcdPpi->Set8 (Guid, ExTokenNumber, 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
+ )
+{
+ if (CheckPcdInFsp (Guid)) {
+ EFI_PEI_PCD_PPI *FspPcdPpi = NULL;
+ PeiServicesLocatePpi (&gFspEfiPeiPcdPpiGuid, 0, NULL, (VOID **)&FspPcdPpi);
+ ASSERT (FspPcdPpi != NULL);
+ return FspPcdPpi->Set16 (Guid, ExTokenNumber, 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
+ )
+{
+ if (CheckPcdInFsp (Guid)) {
+ EFI_PEI_PCD_PPI *FspPcdPpi = NULL;
+ PeiServicesLocatePpi (&gFspEfiPeiPcdPpiGuid, 0, NULL, (VOID **)&FspPcdPpi);
+ ASSERT (FspPcdPpi != NULL);
+ return FspPcdPpi->Set32 (Guid, ExTokenNumber, 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
+ )
+{
+ if (CheckPcdInFsp (Guid)) {
+ EFI_PEI_PCD_PPI *FspPcdPpi = NULL;
+ PeiServicesLocatePpi (&gFspEfiPeiPcdPpiGuid, 0, NULL, (VOID **)&FspPcdPpi);
+ ASSERT (FspPcdPpi != NULL);
+ return FspPcdPpi->Set64 (Guid, ExTokenNumber, 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
+ )
+{
+ if (CheckPcdInFsp (Guid)) {
+ EFI_PEI_PCD_PPI *FspPcdPpi = NULL;
+ PeiServicesLocatePpi (&gFspEfiPeiPcdPpiGuid, 0, NULL, (VOID **)&FspPcdPpi);
+ ASSERT (FspPcdPpi != NULL);
+ return FspPcdPpi->SetPtr (Guid, ExTokenNumber, SizeOfBuffer, 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
+ )
+{
+ if (CheckPcdInFsp (Guid)) {
+ EFI_PEI_PCD_PPI *FspPcdPpi = NULL;
+ PeiServicesLocatePpi (&gFspEfiPeiPcdPpiGuid, 0, NULL, (VOID **)&FspPcdPpi);
+ ASSERT (FspPcdPpi != NULL);
+ return FspPcdPpi->SetBool (Guid, ExTokenNumber, 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;
+ }
+}
diff --git a/Platform/AMD/VanGoghBoard/Override/edk2/MdeModulePkg/Universal/PCD/Pei/Pcd.inf b/Platform/AMD/VanGoghBoard/Override/edk2/MdeModulePkg/Universal/PCD/Pei/Pcd.inf
new file mode 100644
index 0000000000..204f08b958
--- /dev/null
+++ b/Platform/AMD/VanGoghBoard/Override/edk2/MdeModulePkg/Universal/PCD/Pei/Pcd.inf
@@ -0,0 +1,368 @@
+## @file
+# PCD PEI Module INF file
+#
+# Copyright (C) 2024 Advanced Micro Devices, Inc. All rights reserved.<BR>
+# SPDX-License-Identifier: BSD-2-Clause-Patent
+#
+##
+
+## @file
+# PCD PEIM produces PCD database to manage all dynamic PCD in PEI phase and install Pcd Ppi service.
+#
+# This version PCD PEIM depends on the external PCD database binary file, not built in PCD data base.
+# There are two PCD PPIs as follows:
+# 1) PCD_PPI
+# It is EDKII implementation which support Dynamic/DynamicEx Pcds.
+# 2) EFI_PEI_PCD_PPI
+# It is defined by PI specification 1.2, Vol 3 which only support dynamicEx
+# type Pcd.
+# For dynamicEx type PCD, it is compatible between PCD_PPI and EFI_PEI_PCD_PPI.
+# PCD PEIM driver will produce above two PPIs at same time.
+#
+# PCD database is generated as the separate binary image at build time. The binary image
+# will be intergrated into Firmware volume together with PCD driver.
+#
+# ////////////////////////////////////////////////////////////////////////////////
+# // //
+# // Introduction of PCD database //
+# // //
+# ////////////////////////////////////////////////////////////////////////////////
+#
+# 1, Introduction
+# PCD database hold all dynamic type PCD information. The structure of PEI PCD
+# database is generated by build tools according to dynamic PCD usage for
+# specified platform.
+#
+# 2, Dynamic Type PCD
+# Dynamic type PCD is used for the configuration/setting which value is determined
+# dynamic. In contrast, the value of static type PCD (FeatureFlag, FixedPcd,
+# PatchablePcd) is fixed in final generated FD image in build time.
+#
+# 2.1 The "dynamic" determination means one of below cases:
+# a) The PCD setting value is produced by someone driver and consumed by
+# other driver in execution time.
+# b) The PCD setting value is set/get by user from FrontPage.
+# c) The PCD setting value is produced by platform OEM vendor in specified area.
+#
+# 2.2 According to module distribution way, dynamic PCD could be classfied as:
+# a) Dynamic:
+# If module is released in source code and will be built with platform
+# DSC, the dynamic PCD used by this module can be accessed as:
+# PcdGetxx(PcdSampleDynamicPcd);
+# In building platform, build tools will translate PcdSampleDynamicPcd to
+# pair of {Token Space Guid: Token Number} for this PCD.
+# b) DynamicEx:
+# If module is release as binary and will not pariticpate platform building,
+# the dynamic PCD used by this module need be accessed as:
+# PcdGetxxEx(gEfiMyTokenspaceGuid, PcdSampleDynamicPcd)
+# Developer need explicity gives {Token Space Guid:Token Number} as parameter
+# in writting source code.
+#
+# 2.3 According to PCD value's storage method, dynamic PCD could be classfied as:
+# a) Default Storage:
+# - The PCD value is stored in PCD database maintained by PCD driver in boot
+# time memory.
+# - This type is used for communication between PEIM/DXE driver, DXE/DXE
+# driver. But all set/get value will be losted after boot-time memory
+# is turn off.
+# - [PcdsDynamicDefault] is used as section name for this type PCD in
+# platform DSC file. [PcdsDynamicExDefault] is used for dynamicEx type PCD.
+#
+# b) Variable Storage:
+# - The PCD value is stored in variable area.
+# - As default storage type, this type PCD could be used for PEI/DXE driver
+# communication. But beside it, this type PCD could also be used to store
+# the value associate with a HII setting via variable interface.
+# - In PEI phase, the PCD value could only be got but can not be set due
+# to variable area is readonly.
+# - [PcdsDynamicHii] is used as section name for this type PCD in platform
+# DSC file. [PcdsDynamicExHii] is for dynamicEx type PCD.
+#
+# c) OEM specificed storage area:
+# - The PCD value is stored in OEM specified area which base address is
+# specified by PCD setting - PcdVpdBaseAddress64 or PcdVpdBaseAddress.
+# - The area is read only for PEI and DXE phase.
+# - [PcdsDynamicVpd] is used as section name for this type PCD in platform
+# DSC file. [PcdsDynamicExVpd] is for dynamicex type PCD.
+#
+# 2.4 When and how to use dynamic PCD
+# Module developer do not care the used PCD is dynamic or static when writting
+# source code/INF. Dynamic PCD and dynamic type is pointed by platform integrator
+# in platform DSC file. Please ref section 2.3 to get matching between dynamic
+# PCD type and section name in DSC file.
+#
+# 3, PCD database:
+# Although dynamic PCD could be in different storage type as above description,
+# but the basic information and default value for all dynamic PCD is hold
+# by PCD database maintained by PEI/DXE driver.
+#
+# As the whole EFI BIOS boot path is divided into PEI/DXE phase, the PCD database
+# also is divided into Pei/Dxe database maintaied by PcdPeim/PcdDxe driver separatly.
+# To make PcdPeim's driver image smaller, PEI PCD database only hold all dynamic
+# PCD information used in PEI phase or use in both PEI/DXE phase. And DXE PCD
+# database contains all PCDs used in PEI/DXE phase in memory.
+#
+# Build tool will generate PCD database into the separate binary file for
+# PEI/DXE PCD driver according to dynamic PCD section in platform DSC file.
+#
+# 3.1 PcdPeim and PcdDxe
+# PEI PCD database is maintained by PcdPeim driver run from flash. PcdPeim driver
+# build guid hob in temporary memory and copy the binary data base from flash
+# to temporary memory for PEI PCD database.
+# DXE PCD database is maintained by PcdDxe driver.At entry point of PcdDxe driver,
+# a new PCD database is allocated in boot-time memory which including all
+# PEI PCD and DXE PCD entry.
+#
+# Pcd driver should run as early as possible before any other driver access
+# dynamic PCD's value. PEI/DXE "Apriori File" mechanism make it possible by
+# making PcdPeim/PcdDxe as first dispatching driver in PEI/DXE phase.
+#
+# 3.2 Token space Guid/Token number, Platform token, Local token number
+# Dynamic PCD
+# +-----------+ +---------+
+# |TokenSpace | |Platform |
+# | Guid | build tool | Token |
+# | + +-------------->| Number |
+# | Token | +---------+`._
+# | Number | `.
+# +-----------+ `. +------+
+# `-|Local |
+# |Token |
+# DynamicEx PCD ,-|Number|
+# +-----------+ ,-' +------+
+# |TokenSpace | ,-'
+# | Guid | _,-'
+# | + +.'
+# | Token |
+# | Number |
+# +-----------+
+#
+#
+# 3.2.1 Pair of Token space guid + Token number
+# Any type PCD is identified by pair of "TokenSpaceGuid + TokeNumber". But it
+# is not easy maintained by PCD driver, and hashed token number will make
+# searching slowly.
+#
+# 3.2.2 Platform Token Number
+# "Platform token number" concept is introduced for mapping to a pair of
+# "TokenSpaceGuid + TokenNumber". The platform token number is generated by
+# build tool in autogen.h and all of them are continual in a platform scope
+# started from 1.(0 meaning invalid internal token number)
+# With auto-generated "platform token number", PcdGet(PcdSampleDynamicPcd)
+# in source code is translated to LibPcdGet(_PCD_TOKEN_PcdSampleDynamicPcd)
+# in autogen.h.
+# Notes: The mapping between pair of "tokenspace guid + token number" and
+# "internal token number" need build tool establish, so "platform token number"
+# mechanism is not suitable for binary module which use DynamicEx type PCD.
+# To access a dynamicEx type PCD, pair of "token space guid/token number" all need
+# to be specificed for PcdSet/PcdGet accessing macro.
+#
+# Platform Token Number is started from 1, and inceased continuous. From whole
+# platform scope, there are two zones: PEI Zone and DXE Zone
+# | Platform Token Number
+# ----------|----------------------------------------------------------------
+# PEI Zone: | 1 ~ PEI_LOCAL_TOKEN_NUMBER
+# DXE Zone: | (PEI_LOCAL_TOKEN_NUMBER + 1) ~ (PEI_LOCAL_TOKEN_NUMBER + DXE_LOCAL_TOKEN_NUMBER)
+#
+# 3.2.3 Local Token Number
+# To fast searching a PCD entry in PCD database, PCD driver translate
+# platform token number to local token number via a mapping table.
+# For binary DynamicEx type PCD, there is a another mapping table to translate
+# "token space guid + token number" to local token number directly.
+# Local token number is identifier for all internal interface in PCD PEI/DXE
+# driver.
+#
+# A local token number is a 32-bit value in following meaning:
+# 32 ------------- 28 ---------- 24 -------- 0
+# | PCD type mask | Datum Type | Offset |
+# +-----------------------------------------+
+# where:
+# PCd type mask: indicate Pcd type from following macro:
+# PCD_TYPE_DATA
+# PCD_TYPE_HII
+# PCD_TYPE_VPD
+# PCD_TYPE_STRING
+# Datum Type : indicate PCD vaue type from following macro:
+# PCD_DATUM_TYPE_POINTER
+# PCD_DATUM_TYPE_UINT8
+# PCD_DATUM_TYPE_UINT16
+# PCD_DATUM_TYPE_UINT32
+# PCD_DATUM_TYPE_UINT64
+# Offset : indicate the related offset of PCD value in PCD database array.
+# Based on local token number, PCD driver could fast determine PCD type, value
+# type and get PCD entry from PCD database.
+#
+# 3.3 PCD Database binary file
+# PCD Database binary file will be created at build time as the standalone binary image.
+# To understand the binary image layout, PCD Database C structure is still generated
+# as comments by build tools in PCD driver's autogen.h/
+# autogen.c file. In generated C structure, following information is stored:
+# - ExMapTable: This table is used translate a binary dynamicex type PCD's
+# "tokenguid + token" to local token number.
+# - LocalTokenNumberTable:
+# This table stores all local token number in array, use "Internal
+# token number" as array index to get PCD entry's offset fastly.
+# - SizeTable: This table stores the size information for all PCD entry.
+# - GuidTable: This table stores guid value for DynamicEx's token space,
+# HII type PCD's variable GUID.
+# - SkuIdTable: TBD
+# - SystemSkuId: TBD
+# - PCD value structure:
+# Every PCD has a value record in PCD database. For different
+# datum type PCD has different record structure which will be
+# introduced in 3.3.1
+#
+# In a PCD database structure, there are two major area: Init and UnInit.
+# Init area is use stored above PCD internal structure such as ExMapTable,
+# LocalTokenNumberTable etc and the (default) value of PCD which has default
+# value specified in platform DSC file.
+# Unint area is used stored the value of PCD which has no default value in
+# platform DSC file, the value of NULL, 0 specified in platform DSC file can
+# be seemed as "no default value".
+#
+# 3.3.1 Simple Sample PCD Database C Structure
+# A general sample of PCD database structue is as follows:
+# typedef struct _PCD_DATABASE {
+# typedef struct _PCD_DATABASE_INIT {
+# //===== Following is PCD database internal maintain structures
+# DYNAMICEX_MAPPING ExMapTable[PEI_EXMAPPING_TABLE_SIZE];
+# UINT32 LocalTokenNumberTable[PEI_LOCAL_TOKEN_NUMBER_TABLE_SIZE];
+# GUID GuidTable[PEI_GUID_TABLE_SIZE];
+# SIZE_INFO SizeTable[PEI_SIZE_TABLE_SIZE];
+# UINT8 SkuIdTable[PEI_SKUID_TABLE_SIZE];
+# SKU_ID SystemSkuId;
+#
+# //===== Following is value structure for PCD with default value
+# ....
+# ....
+# ....
+# } Init;
+# typedef struct _PCD_DATABSE_UNINIT {
+# //==== Following is value structure for PCD without default value
+# ....
+# ....
+# } UnInit;
+# }
+#
+# 3.3.2 PCD value structure in PCD database C structure
+# The value's structure is generated by build tool in PCD database C structure.
+# The PCDs in different datum type has different value structure.
+#
+# 3.3.2.1 UINT8/UINT16/UINT32/UINT64 datum type PCD
+# The C structure for these datum type PCD is just a UINT8/UINT16/UINT32/UINT64
+# data member in PCD database, For example:
+# UINT16 PcdHardwareErrorRecordLevel_d3705011_bc19_4af7_be16_f68030378c15_VariableDefault_0;
+# Above structure is generated by build tool, the member name is "PcdCName_Guidvalue"
+# Member type is UINT16 according to PcdHardwareErrorRecordLevel declaration
+# in DEC file.
+#
+# 3.3.2.2 VOID* datum type PCD
+# The value of VOID* datum type PCD is a UINT8/UINT16 array in PCD database.
+#
+# 3.3.2.2.1 VOID* - string type
+# If the default value for VOID* datum type PCD like L"xxx", the PCD is
+# used for unicode string, and C structure of this datum type PCD is
+# UINT16 string array in PCD database, for example:
+# UINT16 StringTable[29];
+# The number of 29 in above sample is max size of a unicode string.
+#
+# If the default value for VOID* datum type PCD like "xxx", the PCD is
+# used for ascii string, and C structure of this datum type PCD is
+# UINT8 string array in PCD database, for example:
+# UINT8 StringTable[20];
+# The number of 20 in above sample is max size of a ascii string.
+#
+# 3.3.2.2.2 VOID* - byte array
+# If the default value of VOID* datum type PCD like {'0x29', '0x01', '0xf2'}
+# the PCD is used for byte array. The generated structrue is same as
+# above ascii string table,
+# UINT8 StringTable[13];
+# The number of 13 in above sample is max size of byte array.
+#
+# 3.3.3 Some utility structures in PCD Database
+# 3.3.3.1 GuidTable
+# GuidTable array is used to store all related GUID value in PCD database:
+# - Variable GUID for HII type PCD
+# - Token space GUID for dynamicex type PCD
+#
+# Copyright (c) 2006 - 2018, Intel Corporation. All rights reserved.<BR>
+#
+# SPDX-License-Identifier: BSD-2-Clause-Patent
+#
+#
+##
+
+[Defines]
+ INF_VERSION = 0x00010005
+ BASE_NAME = PcdPeim
+ MODULE_UNI_FILE = PcdPeim.uni
+ FILE_GUID = 9B3ADA4F-AE56-4c24-8DEA-F03B7558AE50
+ MODULE_TYPE = PEIM
+ VERSION_STRING = 4.0
+ PCD_IS_DRIVER = PEI_PCD_DRIVER
+ ENTRY_POINT = PcdPeimInit
+
+#
+# The following information is for reference only and not required by the build tools.
+#
+# VALID_ARCHITECTURES = IA32 X64 EBC (EBC is for build only)
+#
+
+[Sources]
+ Service.c
+ Service.h
+ Pcd.c
+
+[Packages]
+ MdePkg/MdePkg.dec
+ MdeModulePkg/MdeModulePkg.dec
+ ChachaniBoardPkg/Project.dec
+ Override/edk2/Fsp2WrapperPkg/Fsp2WrapperPkg.dec
+
+[LibraryClasses]
+ BaseMemoryLib
+ PcdLib
+ PeiServicesLib
+ HobLib
+ BaseLib
+ PeimEntryPoint
+ DebugLib
+ MemoryAllocationLib
+
+[Guids]
+ ## PRODUCES ## HOB
+ ## SOMETIMES_CONSUMES ## HOB
+ gPcdDataBaseHobGuid
+ gPcdDataBaseSignatureGuid ## CONSUMES ## GUID # PCD database signature GUID.
+ gEfiMdeModulePkgTokenSpaceGuid ## SOMETIMES_CONSUMES ## GUID
+ gEfiAmdAgesaModulePkgTokenSpaceGuid
+ gEfiAmdAgesaPkgTokenSpaceGuid
+ gAmdCpmPkgTokenSpaceGuid
+ gAmdFspPkgGuid
+
+[Ppis]
+ gEfiPeiReadOnlyVariable2PpiGuid ## SOMETIMES_CONSUMES
+ gPcdPpiGuid ## PRODUCES
+ gEfiPeiPcdPpiGuid ## PRODUCES
+ gGetPcdInfoPpiGuid ## SOMETIMES_PRODUCES
+ gEfiGetPcdInfoPpiGuid ## SOMETIMES_PRODUCES
+ gEfiEndOfPeiSignalPpiGuid ## NOTIFY
+ gFspEfiPeiPcdPpiGuid ## SOMETIMES_PRODUCES
+ gFspEfiGetPcdInfoPpiGuid ## SOMETIMES_PRODUCES
+
+[FeaturePcd]
+ gEfiMdeModulePkgTokenSpaceGuid.PcdPeiFullPcdDatabaseEnable ## CONSUMES
+
+[Pcd]
+ gEfiMdeModulePkgTokenSpaceGuid.PcdVpdBaseAddress ## SOMETIMES_CONSUMES
+ gEfiMdeModulePkgTokenSpaceGuid.PcdVpdBaseAddress64 ## SOMETIMES_CONSUMES
+ gEfiMdeModulePkgTokenSpaceGuid.PcdMaxPeiPcdCallBackNumberPerPcdEntry ## SOMETIMES_CONSUMES
+ gEfiMdeModulePkgTokenSpaceGuid.PcdNvStoreDefaultValueBuffer ## SOMETIMES_CONSUMES
+ gEfiMdeModulePkgTokenSpaceGuid.PcdSetNvStoreDefaultId ## CONSUMES
+ gIntelFsp2WrapperTokenSpaceGuid.PcdFspModeSelection
+
+[Depex]
+ TRUE
+
+[UserExtensions.TianoCore."ExtraFiles"]
+ PcdPeimExtra.uni
diff --git a/Platform/AMD/VanGoghBoard/Override/edk2/MdePkg/Include/Register/Intel/SmramSaveStateMap.h b/Platform/AMD/VanGoghBoard/Override/edk2/MdePkg/Include/Register/Intel/SmramSaveStateMap.h
new file mode 100644
index 0000000000..05487d75e9
--- /dev/null
+++ b/Platform/AMD/VanGoghBoard/Override/edk2/MdePkg/Include/Register/Intel/SmramSaveStateMap.h
@@ -0,0 +1,324 @@
+/** @file
+SMRAM Save State Map Definitions.
+
+SMRAM Save State Map definitions based on contents of the
+Intel(R) 64 and IA-32 Architectures Software Developer's Manual
+ Volume 3C, Section 34.4 SMRAM
+ Volume 3C, Section 34.5 SMI Handler Execution Environment
+ Volume 3C, Section 34.7 Managing Synchronous and Asynchronous SMIs
+
+Copyright (C) 2024 Advanced Micro Devices, Inc. All rights reserved.<BR>
+Copyright (c) 2015 - 2019, Intel Corporation. All rights reserved.<BR>
+SPDX-License-Identifier: BSD-2-Clause-Patent
+
+**/
+
+#ifndef INTEL_SMRAM_SAVE_STATE_MAP_H____
+#define INTEL_SMRAM_SAVE_STATE_MAP_H____
+#define AMD_CPU 1
+///
+/// Default SMBASE address
+///
+#define SMM_DEFAULT_SMBASE 0x30000
+
+///
+/// Offset of SMM handler from SMBASE
+///
+#define SMM_HANDLER_OFFSET 0x8000
+
+///
+/// Offset of SMRAM Save State Map from SMBASE
+///
+#if AMD_CPU
+#define SMRAM_SAVE_STATE_MAP_OFFSET 0xfe00
+#else
+#define SMRAM_SAVE_STATE_MAP_OFFSET 0xfc00
+#endif
+
+#pragma pack (1)
+
+#if AMD_CPU
+///
+/// CPU save-state strcuture for AMD64 Architecture
+///
+typedef struct {
+ UINT8 Reserved[0xF8]; // FE00h - FEF7h , Reserved, 248 Bytes, --
+ UINT32 SMBASE; // FEF8h, SMBASE, Doubleword, Read/Write
+ UINT32 SMMRevId; // FEFCh, SMM-Revision identifier, Doubleword, Read-Only
+ UINT16 IORestart; // FF00h, I/O Instruction Restart, Word, Read/Write
+ UINT16 AutoHALTRestart; // FF02h, Auti-Halt Restart, Word, Read/Write
+ UINT8 Reserved1[0x84]; // FF04h - FF87h, Reserved, 132 Bytes --
+ UINT32 GdtBase; // FF88h, GDT Base, Doubleword, Read-Only
+ UINT64 Reserved2; // FF8Ch - FF93h, Quadword, --
+ UINT32 IDTBase; // FF94h, IDT Base, Doubleword, Read-Only
+ UINT8 Reserved3[0x10]; // FF98 - FFA7h, Reserved, 16Bytes, --
+ UINT32 _ES; // FFA8h, ES, Doubleword, Read-Only
+ UINT32 _CS; // FFACh, CS, Doubleword, Read-Only
+ UINT32 _SS; // FFB0h, SS, Doubleword, Read-Only
+ UINT32 _DS; // FFB4h, DS, Doubleword, Read-Only
+ UINT32 _FS; // FFB8h, FS, Doubleword, Read-Only
+ UINT32 _GS; // FFBCh, GS, Doubleword, Read-Only
+ UINT32 LDTBase; // FFC0h, LDT Base, Doubleword, Read-Only
+ UINT32 _TR; // FFC4h, TR, Doubleword, Read-Only
+ UINT32 _DR7; // FFC8h, DR7, Doubleword, Read-Only
+ UINT32 _DR6; // FFCCh, DR6, Doubleword, Read-Only
+ UINT32 _EAX; // FFD0h, EAX, Doubleword, Read/Write
+ UINT32 _ECX; // FFD4h, ECX, Doubleword, Read/Write
+ UINT32 _EDX; // FFD8h, EDX, Doubleword, Read/Write
+ UINT32 _EBX; // FFDCh, EBX, Doubleword, Read/Write
+ UINT32 _ESP; // FFE0h, ESP, Doubleword, Read/Write
+ UINT32 _EBP; // FFE4h, EBP, Doubleword, Read/Write
+ UINT32 _ESI; // FFE8h, ESI, Doubleword, Read/Write
+ UINT32 _EDI; // FFECh, EDI, Doubleword, Read/Write
+ UINT32 _EIP; // FFF0h, EIP, Doubleword, Read/Write
+ UINT32 _EFLAGS; // FFF4h, EFLAGS, Doubleword, Read/Write
+ UINT32 _CR3; // FFF8h, CR3, Doubleword, Read/Write
+ UINT32 _CR0; // FFFCh, CR0, Doubleword, Read/Write
+} SMRAM_SAVE_STATE_MAP32;
+
+typedef struct {
+ UINT16 _ES; // FE00h, ES Selector, Word, Read-Only
+ UINT16 ESAttributes; // FE02h, ES Attributes, Word, Read-Only
+ UINT32 ESLimit; // FE04h, ES Limit, Doubleword, Read-Only
+ UINT64 ESBase; // FE08h, ES Base, Quadword, Read-Only
+ UINT16 _CS; // FE10h, CS Selector, Word, Read-Only
+ UINT16 CSAttributes; // FE12h, CS Attributes, Word, Read-Only
+ UINT32 CSLimit; // FE14h, CS Limit, Doubleword, Read-Only
+ UINT64 CSBase; // FE18h, CS Base, Quadword, Read-Only
+ UINT16 _SS; // FE20h, SS Selector, Word, Read-Only
+ UINT16 SSAttributes; // FE22h, SS Attributes, Word, Read-Only
+ UINT32 SSLimit; // FE24h, SS Limit, Doubleword, Read-Only
+ UINT64 SSBase; // FE28h, SS Base, Quadword, Read-Only
+ UINT16 _DS; // FE30h, DS Selector, Word, Read-Only
+ UINT16 DSAttributes; // FE32h, DS Attributes, Word, Read-Only
+ UINT32 DSLimit; // FE34h, DS Limit, Doubleword, Read-Only
+ UINT64 DSBase; // FE38h, DS Base, Quadword, Read-Only
+ UINT16 _FS; // FE40h, FS Selector, Word, Read-Only
+ UINT16 FSAttributes; // FE42h, FS Attributes, Word, Read-Only
+ UINT32 FSLimit; // FE44h, FS Limit, Doubleword, Read-Only
+ UINT64 FSBase; // FE48h, FS Base, Quadword, Read-Only
+ UINT16 _GS; // FE50h, GS Selector, Word, Read-Only
+ UINT16 GSAttributes; // FE52h, GS Attributes, Word, Read-Only
+ UINT32 GSLimit; // FE54h, GS Limit, Doubleword, Read-Only
+ UINT64 GSBase; // FE58h, GS Base, Quadword, Read-Only
+ UINT8 Reserved1[4]; // FE60h - FE63h, GDTR Reserved, 4 Bytes, Read-Only
+ UINT16 GdtrLimit; // FE64h, GDTR Limit, Word, Read-Only
+ UINT8 Reserved2[2]; // FE66h - FE67h, Reserved, 2 Bytes, Read-Only
+ // UINT64 GDTR_Base; // FE68h, GDTR Base, Quadword, Read-Only
+ UINT32 GdtrBaseLoDword;
+ UINT32 GdtrBaseHiDword;
+ UINT16 LdtrSelector; // FE70h, LDTR Selector, Word, Read-Only
+ UINT16 LdtrAttributes; // FE72h, LDTR Attributes, Word, Read-Only
+ UINT32 LdtrLimit; // FE74h, LDTR Limit, Doubleword, Read-Only
+ // UINT64 LDTR_Base; // FE78h, LDTR Base, Quadword, Read-Only
+ UINT32 LdtrBaseLoDword;
+ UINT32 LdtrBaseHiDword;
+ UINT8 Reserved3[4]; // FE80h - FE83h (PID: 24593 (PUB) 3.20 p.279 has a technical errors), IDTR Reserved, 4 Bytes, Read-Only
+ UINT16 IdtrLimit; // FE84h, IDTR Limit, Word, Read-Only
+ UINT8 Reserved4[2]; // FE86h - FE87h (PID: 24593 (PUB) 3.20 p.279 has a technical errors), IDTR Reserved, 2 Bytes, Read-Only
+ // UINT64 IDTR_Base; // FE88h, IDTR Base, Quadword, Read-Only
+ UINT32 IdtrBaseLoDword;
+ UINT32 IdtrBaseHiDword;
+ UINT16 TrSelector; // FE90h, TR Selector, Word, Read-Only
+ UINT16 TrAttributes; // FE92h, TR Attributes, Word, Read-Only
+ UINT32 TrLimit; // FE94h, TR Limit, Doubleword, Read-Only
+ UINT64 TrBase; // FE98h, TR Base, Quadword, Read-Only
+ UINT64 IO_RESTART_RIP; // FEA0h, I/O Instruction Restart RIP, Quadword, Read-Only
+ UINT64 IO_RESTART_RCX; // FEA8h, I/O Instruction Restart RCX, Quadword, Read-Only
+ UINT64 IO_RESTART_RSI; // FEB0h, I/O Instruction Restart RSI, Quadword, Read-Only
+ UINT64 IO_RESTART_RDI; // FEB8h, I/O Instruction Restart RDI, Quadword, Read-Only
+ UINT32 SMM_IO_TRAP; // FEC0h, I/O Instruction Restart Dword SMMFEC0 [SMM IO Trap Offset], Read-Only
+ UINT32 LocalSmiStatus; // FEC4h, SMMFEC4 [Local SMI Status], Doubleword, Read-Only
+ UINT8 SMM_IO_RESTART; // FEC8h, SMMFEC8 [SMM IO Restart Byte], Byte, Read/Write
+ UINT8 AutoHALTRestart; // FEC9h, SMMFEC9 [Auto Halt Restart Offset], Byte, Read/Write
+ UINT8 NMI_MASK; // FECAh, SMMFECA [NMI Mask], Byte, Read/Write
+ UINT8 Reserved5[5]; // FECBh - FECFh, Reserved, 5 Bytes, --
+ UINT64 EFER; // FED0h, EFER, Quadword, Read-Only
+ UINT64 SMM_SVM_State; // FED8h, SMMFED8 [SMM SVM State], Read-Only
+ UINT64 Guest_VMCB_PHY_ADDR; // FEE0h, Guest VMCB physical address, Read-Only
+ UINT64 SVM_Virtual_INT_CTRL; // FEE8h, SVM Virtual Interrupt Control, Read-Only
+ UINT8 Reserved6[12]; // FEF0h - FEFBh, Reserved, 12 Bytes (PID: 42300 Family 15h BKDG (NDA) 1.11 p.49 has a technial error), --
+ UINT32 SMMRevId; // FEFCh, SMMFEFC [SMM-Revision-Indentifier], Doubleword, Read/Write
+ UINT32 SMBASE; // FF00h, SMMFF00 [SMM Base Address (SMM_BASE)], Read/Write
+ UINT8 Reserved7[28]; // FF04h, Reserved, 24 Bytes, --
+ UINT64 GuestPAT; // FF20h, Guest PAT, Quadword, Read-Only
+ UINT64 HostEFER; // FF28h, Host EFER, Quadword, Read-Only
+ UINT64 HostCR4; // FF30h, Host CR4, Quadword, Read-Only
+ UINT64 NestedCR3; // FF38h, Nested CR3, Quadword, Read-Only
+ UINT64 HostCR0; // FF40h, Host CR0, Quadword, Read-Only
+ UINT64 _CR4; // FF48h, CR4, Quadword, Read-Only
+ UINT64 _CR3; // FF50h, CR3, Quadword, Read-Only
+ UINT64 _CR0; // FF58h, CR0, Quadword, Read-Only
+ UINT64 _DR7; // FF60h, DR7, Quadword, Read-Only
+ UINT64 _DR6; // FF68h, DR6, Quadword, Read-Only
+ UINT64 _RFLAGS; // FF70h, RFLAGS, Quadword, Read/Write
+ UINT64 _RIP; // FF78h, RIP, Quadword, Read/Write
+ UINT64 _R15; // FF80h, R15, Quadword, Read/Write
+ UINT64 _R14; // FF88h, R14, Quadword, Read/Write
+ UINT64 _R13; // FF90h, R13, Quadword, Read/Write
+ UINT64 _R12; // FF98h, R12, Quadword, Read/Write
+ UINT64 _R11; // FFA0h, R11, Quadword, Read/Write
+ UINT64 _R10; // FFA8h, R10, Quadword, Read/Write
+ UINT64 _R9; // FFB0h, R9, Quadword, Read/Write
+ UINT64 _R8; // FFB8, R8, Quadword, Read/Write
+ UINT64 _RDI; // FFC0h, RDI, Quadword, Read/Write
+ UINT64 _RSI; // FFD8h, RSI, Quadword, Read/Write
+ UINT64 _RBP; // FFD0h, RBP, Quadword, Read/Write
+ UINT64 _RSP; // FFE0h, RSP, Quadword, Read/Write
+ UINT64 _RBX; // FFE0h, RBX, Quadword, Read/Write
+ UINT64 _RDX; // FFE8h, RDX, Quadword, Read/Write
+ UINT64 _RCX; // FFF0h, RCX, Quadword, Read/Write
+ UINT64 _RAX; // FFF8h, RAX, Quadword, Read/Write
+} SMRAM_SAVE_STATE_MAP64;
+#else
+///
+/// 32-bit SMRAM Save State Map
+///
+typedef struct {
+ UINT8 Reserved[0x200]; // 7c00h
+ // Padded an extra 0x200 bytes so 32-bit and 64-bit
+ // SMRAM Save State Maps are the same size
+ UINT8 Reserved1[0xf8]; // 7e00h
+ UINT32 SMBASE; // 7ef8h
+ UINT32 SMMRevId; // 7efch
+ UINT16 IORestart; // 7f00h
+ UINT16 AutoHALTRestart; // 7f02h
+ UINT8 Reserved2[0x9C]; // 7f08h
+ UINT32 IOMemAddr; // 7fa0h
+ UINT32 IOMisc; // 7fa4h
+ UINT32 _ES; // 7fa8h
+ UINT32 _CS; // 7fach
+ UINT32 _SS; // 7fb0h
+ UINT32 _DS; // 7fb4h
+ UINT32 _FS; // 7fb8h
+ UINT32 _GS; // 7fbch
+ UINT32 Reserved3; // 7fc0h
+ UINT32 _TR; // 7fc4h
+ UINT32 _DR7; // 7fc8h
+ UINT32 _DR6; // 7fcch
+ UINT32 _EAX; // 7fd0h
+ UINT32 _ECX; // 7fd4h
+ UINT32 _EDX; // 7fd8h
+ UINT32 _EBX; // 7fdch
+ UINT32 _ESP; // 7fe0h
+ UINT32 _EBP; // 7fe4h
+ UINT32 _ESI; // 7fe8h
+ UINT32 _EDI; // 7fech
+ UINT32 _EIP; // 7ff0h
+ UINT32 _EFLAGS; // 7ff4h
+ UINT32 _CR3; // 7ff8h
+ UINT32 _CR0; // 7ffch
+} SMRAM_SAVE_STATE_MAP32;
+
+///
+/// 64-bit SMRAM Save State Map
+///
+typedef struct {
+ UINT8 Reserved1[0x1d0]; // 7c00h
+ UINT32 GdtBaseHiDword; // 7dd0h
+ UINT32 LdtBaseHiDword; // 7dd4h
+ UINT32 IdtBaseHiDword; // 7dd8h
+ UINT8 Reserved2[0xc]; // 7ddch
+ UINT64 IO_EIP; // 7de8h
+ UINT8 Reserved3[0x50]; // 7df0h
+ UINT32 _CR4; // 7e40h
+ UINT8 Reserved4[0x48]; // 7e44h
+ UINT32 GdtBaseLoDword; // 7e8ch
+ UINT32 Reserved5; // 7e90h
+ UINT32 IdtBaseLoDword; // 7e94h
+ UINT32 Reserved6; // 7e98h
+ UINT32 LdtBaseLoDword; // 7e9ch
+ UINT8 Reserved7[0x38]; // 7ea0h
+ UINT64 EptVmxControl; // 7ed8h
+ UINT32 EnEptVmxControl; // 7ee0h
+ UINT8 Reserved8[0x14]; // 7ee4h
+ UINT32 SMBASE; // 7ef8h
+ UINT32 SMMRevId; // 7efch
+ UINT16 IORestart; // 7f00h
+ UINT16 AutoHALTRestart; // 7f02h
+ UINT8 Reserved9[0x18]; // 7f04h
+ UINT64 _R15; // 7f1ch
+ UINT64 _R14;
+ UINT64 _R13;
+ UINT64 _R12;
+ UINT64 _R11;
+ UINT64 _R10;
+ UINT64 _R9;
+ UINT64 _R8;
+ UINT64 _RAX; // 7f5ch
+ UINT64 _RCX;
+ UINT64 _RDX;
+ UINT64 _RBX;
+ UINT64 _RSP;
+ UINT64 _RBP;
+ UINT64 _RSI;
+ UINT64 _RDI;
+ UINT64 IOMemAddr; // 7f9ch
+ UINT32 IOMisc; // 7fa4h
+ UINT32 _ES; // 7fa8h
+ UINT32 _CS;
+ UINT32 _SS;
+ UINT32 _DS;
+ UINT32 _FS;
+ UINT32 _GS;
+ UINT32 _LDTR; // 7fc0h
+ UINT32 _TR;
+ UINT64 _DR7; // 7fc8h
+ UINT64 _DR6;
+ UINT64 _RIP; // 7fd8h
+ UINT64 IA32_EFER; // 7fe0h
+ UINT64 _RFLAGS; // 7fe8h
+ UINT64 _CR3; // 7ff0h
+ UINT64 _CR0; // 7ff8h
+} SMRAM_SAVE_STATE_MAP64;
+#endif
+
+///
+/// Union of 32-bit and 64-bit SMRAM Save State Maps
+///
+typedef union {
+ SMRAM_SAVE_STATE_MAP32 x86;
+ SMRAM_SAVE_STATE_MAP64 x64;
+} SMRAM_SAVE_STATE_MAP;
+
+///
+/// Minimum SMM Revision ID that supports IOMisc field in SMRAM Save State Map
+///
+#define SMRAM_SAVE_STATE_MIN_REV_ID_IOMISC 0x30004
+
+///
+/// SMRAM Save State Map IOMisc I/O Length Values
+///
+#define SMM_IO_LENGTH_BYTE 0x01
+#define SMM_IO_LENGTH_WORD 0x02
+#define SMM_IO_LENGTH_DWORD 0x04
+
+///
+/// SMRAM Save State Map IOMisc I/O Instruction Type Values
+///
+#define SMM_IO_TYPE_IN_IMMEDIATE 0x9
+#define SMM_IO_TYPE_IN_DX 0x1
+#define SMM_IO_TYPE_OUT_IMMEDIATE 0x8
+#define SMM_IO_TYPE_OUT_DX 0x0
+#define SMM_IO_TYPE_INS 0x3
+#define SMM_IO_TYPE_OUTS 0x2
+#define SMM_IO_TYPE_REP_INS 0x7
+#define SMM_IO_TYPE_REP_OUTS 0x6
+
+///
+/// SMRAM Save State Map IOMisc structure
+///
+typedef union {
+ struct {
+ UINT32 SmiFlag : 1;
+ UINT32 Length : 3;
+ UINT32 Type : 4;
+ UINT32 Reserved1 : 8;
+ UINT32 Port : 16;
+ } Bits;
+ UINT32 Uint32;
+} SMRAM_SAVE_STATE_IOMISC;
+
+#pragma pack ()
+
+#endif
--
2.31.1
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-=-=-=-=-=-=-=-=-=-=-=-[AMD Official Use Only - General]
> -----Original Message-----
> From: Zhai, MingXin (Duke) <duke.zhai@amd.com>
> Sent: Friday, January 26, 2024 2:01 PM
> To: devel@edk2.groups.io
> Cc: Xing, Eric <Eric.Xing@amd.com>; Zhai, MingXin (Duke)
> <duke.zhai@amd.com>; Fu, Igniculus <Igniculus.Fu@amd.com>; Chang,
> Abner <Abner.Chang@amd.com>
> Subject: [PATCH V2 30/32] AMD/VanGoghBoard: Check in EDK2 override files
>
> From: Duke Zhai <Duke.Zhai@amd.com>
>
> BZ #:4640
> In V2: Improve coding style.
> 1.Remove the leading underscore and use double underscore at trailing in C
> header files.
> 2.Remove old tianocore licenses and redundant license description.
> 3.Improve coding style. For example: remove space between @param.
>
> In V1:
> ChachaniBoard Use FSP for open source. FSP is needed to provide some
> AGESA related pcds as the interface for Platform BIOS.
> Override those EDK2 files to support reading AGESA-related PCDs from FSP.
>
> Signed-off-by: Ken Yao <ken.yao@amd.com>
> Cc: Eric Xing <eric.xing@amd.com>
> Cc: Duke Zhai <duke.zhai@amd.com>
> Cc: Igniculus Fu <igniculus.fu@amd.com>
> Cc: Abner Chang <abner.chang@amd.com>
> ---
> .../edk2/MdeModulePkg/Universal/PCD/Dxe/Pcd.c | 1520 +++++++++++++
> .../MdeModulePkg/Universal/PCD/Dxe/Pcd.inf | 366 ++++
> .../edk2/MdeModulePkg/Universal/PCD/Pei/Pcd.c | 1876
> +++++++++++++++++
> .../MdeModulePkg/Universal/PCD/Pei/Pcd.inf | 368 ++++
> .../Register/Intel/SmramSaveStateMap.h | 324 +++
> 5 files changed, 4454 insertions(+)
> create mode 100644
> Platform/AMD/VanGoghBoard/Override/edk2/MdeModulePkg/Universal/PC
> D/Dxe/Pcd.c
> create mode 100644
> Platform/AMD/VanGoghBoard/Override/edk2/MdeModulePkg/Universal/PC
> D/Dxe/Pcd.inf
> create mode 100644
> Platform/AMD/VanGoghBoard/Override/edk2/MdeModulePkg/Universal/PC
> D/Pei/Pcd.c
> create mode 100644
> Platform/AMD/VanGoghBoard/Override/edk2/MdeModulePkg/Universal/PC
> D/Pei/Pcd.inf
> create mode 100644
> Platform/AMD/VanGoghBoard/Override/edk2/MdePkg/Include/Register/Inte
> l/SmramSaveStateMap.h
>
> diff --git
> a/Platform/AMD/VanGoghBoard/Override/edk2/MdeModulePkg/Universal/
> PCD/Dxe/Pcd.c
> b/Platform/AMD/VanGoghBoard/Override/edk2/MdeModulePkg/Universal/
> PCD/Dxe/Pcd.c
> new file mode 100644
> index 0000000000..5533786b2c
> --- /dev/null
> +++
> b/Platform/AMD/VanGoghBoard/Override/edk2/MdeModulePkg/Universal/
> PCD/Dxe/Pcd.c
> @@ -0,0 +1,1520 @@
> +/** @file
> + PCD DXE driver manage all PCD entry initialized in PEI phase and DXE phase,
> and
> + produce the implementation of native PCD protocol and
> EFI_PCD_PROTOCOL defined in
> + PI 1.4a Vol3.
> +
> +Copyright (C) 2024 Advanced Micro Devices, Inc. All rights reserved.<BR>
> +Copyright (c) 2006 - 2018, Intel Corporation. All rights reserved.<BR>
> +SPDX-License-Identifier: BSD-2-Clause-Patent
> +
> +**/
> +
> +#include "Service.h"
> +
> +extern EFI_GUID gEfiAmdAgesaModulePkgTokenSpaceGuid;
> +extern EFI_GUID gEfiAmdAgesaPkgTokenSpaceGuid;
> +extern EFI_GUID gFspEfiGetPcdInfoProtocolGuid;
> +extern EFI_GUID gFspEfiPcdProtocolGuid;
> +
> +// Cache the FSP PiPcd Protocols.
> +STATIC EFI_PCD_PROTOCOL *CachedFspPiPcdProtocol;
> +STATIC EFI_GET_PCD_INFO_PROTOCOL *CachedFspPiGetPcdInfoProtocol;
> +
> +STATIC
> +BOOLEAN
> +CheckPcdInFsp (
> + IN CONST EFI_GUID *InputGuid
> + )
> +{
> + if ( (FixedPcdGet8 (PcdFspModeSelection) == 0) // Dispatch
> mode
> + && ( CompareGuid (InputGuid,
> &gEfiAmdAgesaModulePkgTokenSpaceGuid) // AgesaModulePkg
> + || CompareGuid (InputGuid, &gEfiAmdAgesaPkgTokenSpaceGuid) //
> AgesaPkg
> + || CompareGuid (InputGuid, &gAmdFspPkgGuid) // FspPkg
> + || CompareGuid (InputGuid, &gAmdCpmPkgTokenSpaceGuid))) //
> AmdCpmPkg
> + {
> + return TRUE;
> + }
> +
> + return FALSE;
> +}
> +
> +VOID
> +EFIAPI
> +FspPiPcdProtocolInstalled (
> + IN EFI_EVENT Event,
> + IN VOID *Context
> + )
> +{
> + gBS->LocateProtocol (&gFspEfiPcdProtocolGuid, NULL, (VOID
> **)&CachedFspPiPcdProtocol);
> + gBS->CloseEvent (Event);
> + return;
> +}
> +
> +VOID
> +EFIAPI
> +FspPiGetPcdInfoProtocolInstalled (
> + IN EFI_EVENT Event,
> + IN VOID *Context
> + )
> +{
> + gBS->LocateProtocol (&gFspEfiGetPcdInfoProtocolGuid, NULL, (VOID
> **)&CachedFspPiGetPcdInfoProtocol);
> + gBS->CloseEvent (Event);
> + return;
> +}
> +
> +STATIC EFI_EVENT mFspPiPcdProtocolInstalledEvent;
> +STATIC EFI_EVENT mFspPiGetPcdInfoProtocolInstalledEvent;
> +
> +///
> +/// PCD database lock.
> +///
> +EFI_LOCK mPcdDatabaseLock = EFI_INITIALIZE_LOCK_VARIABLE
> (TPL_NOTIFY);
> +
> +///
> +/// PCD_PROTOCOL the EDKII native implementation which support dynamic
> +/// type and dynamicEx type PCDs.
> +///
> +PCD_PROTOCOL mPcdInstance = {
> + DxePcdSetSku,
> +
> + DxePcdGet8,
> + DxePcdGet16,
> + DxePcdGet32,
> + DxePcdGet64,
> + DxePcdGetPtr,
> + DxePcdGetBool,
> + DxePcdGetSize,
> +
> + DxePcdGet8Ex,
> + DxePcdGet16Ex,
> + DxePcdGet32Ex,
> + DxePcdGet64Ex,
> + DxePcdGetPtrEx,
> + DxePcdGetBoolEx,
> + DxePcdGetSizeEx,
> +
> + DxePcdSet8,
> + DxePcdSet16,
> + DxePcdSet32,
> + DxePcdSet64,
> + DxePcdSetPtr,
> + DxePcdSetBool,
> +
> + DxePcdSet8Ex,
> + DxePcdSet16Ex,
> + DxePcdSet32Ex,
> + DxePcdSet64Ex,
> + DxePcdSetPtrEx,
> + DxePcdSetBoolEx,
> +
> + DxeRegisterCallBackOnSet,
> + DxeUnRegisterCallBackOnSet,
> + DxePcdGetNextToken,
> + DxePcdGetNextTokenSpace
> +};
> +
> +///
> +/// EFI_PCD_PROTOCOL is defined in PI 1.2 Vol 3 which only support
> dynamicEx type
> +/// PCD.
> +///
> +EFI_PCD_PROTOCOL mEfiPcdInstance = {
> + DxePcdSetSku,
> + DxePcdGet8Ex,
> + DxePcdGet16Ex,
> + DxePcdGet32Ex,
> + DxePcdGet64Ex,
> + DxePcdGetPtrEx,
> + DxePcdGetBoolEx,
> + DxePcdGetSizeEx,
> + DxePcdSet8Ex,
> + DxePcdSet16Ex,
> + DxePcdSet32Ex,
> + DxePcdSet64Ex,
> + DxePcdSetPtrEx,
> + DxePcdSetBoolEx,
> + (EFI_PCD_PROTOCOL_CALLBACK_ON_SET)DxeRegisterCallBackOnSet,
> + (EFI_PCD_PROTOCOL_CANCEL_CALLBACK)DxeUnRegisterCallBackOnSet,
> + DxePcdGetNextToken,
> + DxePcdGetNextTokenSpace
> +};
> +
> +///
> +/// Instance of GET_PCD_INFO_PROTOCOL protocol is EDKII native
> implementation.
> +/// This protocol instance support dynamic and dynamicEx type PCDs.
> +///
> +GET_PCD_INFO_PROTOCOL mGetPcdInfoInstance = {
> + DxeGetPcdInfoGetInfo,
> + DxeGetPcdInfoGetInfoEx,
> + DxeGetPcdInfoGetSku
> +};
> +
> +///
> +/// Instance of EFI_GET_PCD_INFO_PROTOCOL which is defined in PI 1.2.1
> Vol 3.
> +/// This PPI instance only support dyanmicEx type PCD.
> +///
> +EFI_GET_PCD_INFO_PROTOCOL mEfiGetPcdInfoInstance = {
> + DxeGetPcdInfoGetInfoEx,
> + DxeGetPcdInfoGetSku
> +};
> +
> +EFI_HANDLE mPcdHandle = NULL;
> +UINTN mVpdBaseAddress = 0;
> +
> +/**
> + Main entry for PCD DXE driver.
> +
> + This routine initialize the PCD database and install PCD_PROTOCOL.
> +
> + @param ImageHandle Image handle for PCD DXE driver.
> + @param SystemTable Pointer to SystemTable.
> +
> + @return Status of gBS->InstallProtocolInterface()
> +
> +**/
> +EFI_STATUS
> +EFIAPI
> +PcdDxeInit (
> + IN EFI_HANDLE ImageHandle,
> + IN EFI_SYSTEM_TABLE *SystemTable
> + )
> +{
> + EFI_STATUS Status;
> + VOID *Registration;
> +
> + //
> + // Make sure the Pcd Protocol is not already installed in the system
> + //
> +
> + ASSERT_PROTOCOL_ALREADY_INSTALLED (NULL, &gPcdProtocolGuid);
> +
> + BuildPcdDxeDataBase ();
> +
> + //
> + // Install PCD_PROTOCOL to handle dynamic type PCD
> + // Install EFI_PCD_PROTOCOL to handle dynamicEx type PCD
> + //
> + Status = gBS->InstallMultipleProtocolInterfaces (
> + &mPcdHandle,
> + &gPcdProtocolGuid,
> + &mPcdInstance,
> + &gEfiPcdProtocolGuid,
> + &mEfiPcdInstance,
> + NULL
> + );
> + ASSERT_EFI_ERROR (Status);
> +
> + //
> + // Install GET_PCD_INFO_PROTOCOL to handle dynamic type PCD
> + // Install EFI_GET_PCD_INFO_PROTOCOL to handle dynamicEx type PCD
> + //
> + Status = gBS->InstallMultipleProtocolInterfaces (
> + &mPcdHandle,
> + &gGetPcdInfoProtocolGuid,
> + &mGetPcdInfoInstance,
> + &gEfiGetPcdInfoProtocolGuid,
> + &mEfiGetPcdInfoInstance,
> + NULL
> + );
> + ASSERT_EFI_ERROR (Status);
> +
> + // Wait FSP Pcd Protocol.
> + gBS->CreateEvent (EVT_NOTIFY_SIGNAL, TPL_CALLBACK,
> FspPiPcdProtocolInstalled, NULL, &mFspPiPcdProtocolInstalledEvent);
> + gBS->RegisterProtocolNotify (&gFspEfiPcdProtocolGuid,
> mFspPiPcdProtocolInstalledEvent, &Registration);
> + gBS->CreateEvent (EVT_NOTIFY_SIGNAL, TPL_CALLBACK,
> FspPiGetPcdInfoProtocolInstalled, NULL,
> &mFspPiGetPcdInfoProtocolInstalledEvent);
> + gBS->RegisterProtocolNotify (&gFspEfiGetPcdInfoProtocolGuid,
> mFspPiGetPcdInfoProtocolInstalledEvent, &Registration);
> +
> + //
> + // Register callback function upon VariableLockProtocol
> + // to lock the variables referenced by DynamicHii PCDs with RO property set
> in *.dsc.
> + //
> + EfiCreateProtocolNotifyEvent (
> + &gEdkiiVariableLockProtocolGuid,
> + TPL_CALLBACK,
> + VariableLockCallBack,
> + NULL,
> + &Registration
> + );
> +
> + //
> + // Cache VpdBaseAddress in entry point for the following usage.
> + //
> +
> + //
> + // PcdVpdBaseAddress64 is DynamicEx PCD only. So, DxePcdGet64Ex() is
> used to get its value.
> + //
> + mVpdBaseAddress = (UINTN)DxePcdGet64Ex
> (&gEfiMdeModulePkgTokenSpaceGuid, PcdToken (PcdVpdBaseAddress64));
> + if (mVpdBaseAddress == 0) {
> + //
> + // PcdVpdBaseAddress64 is not set, get value from PcdVpdBaseAddress.
> + //
> + mVpdBaseAddress = (UINTN)PcdGet32 (PcdVpdBaseAddress);
> + }
> +
> + 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
> +DxeGetPcdInfoGetInfo (
> + IN UINTN TokenNumber,
> + OUT EFI_PCD_INFO *PcdInfo
> + )
> +{
> + return DxeGetPcdInfo (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
> +DxeGetPcdInfoGetInfoEx (
> + IN CONST EFI_GUID *Guid,
> + IN UINTN TokenNumber,
> + OUT EFI_PCD_INFO *PcdInfo
> + )
> +{
> + if (CheckPcdInFsp (Guid)) {
> + ASSERT (CachedFspPiGetPcdInfoProtocol != NULL);
> + return CachedFspPiGetPcdInfoProtocol->GetInfo (Guid, TokenNumber,
> PcdInfo);
> + }
> +
> + return DxeGetPcdInfo (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
> +DxeGetPcdInfoGetSku (
> + VOID
> + )
> +{
> + return (UINTN)mPcdDatabase.DxeDb->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
> +DxePcdSetSku (
> + IN UINTN SkuId
> + )
> +{
> + SKU_ID *SkuIdTable;
> + UINTN Index;
> + EFI_STATUS Status;
> +
> + DEBUG ((DEBUG_INFO, "PcdDxe - SkuId 0x%lx is to be set.\n",
> (SKU_ID)SkuId));
> +
> + if (SkuId == mPcdDatabase.DxeDb->SystemSkuId) {
> + //
> + // The input SKU Id is equal to current SKU Id, return directly.
> + //
> + DEBUG ((DEBUG_INFO, "PcdDxe - SkuId is same to current system
> Sku.\n"));
> + return;
> + }
> +
> + if (mPcdDatabase.DxeDb->SystemSkuId != (SKU_ID)0) {
> + DEBUG ((DEBUG_ERROR, "PcdDxe - The SKU Id could be changed only
> once."));
> + DEBUG ((
> + DEBUG_ERROR,
> + "PcdDxe - The SKU Id was set to 0x%lx already, it could not be set to 0x%lx
> any more.",
> + mPcdDatabase.DxeDb->SystemSkuId,
> + (SKU_ID)SkuId
> + ));
> + ASSERT (FALSE);
> + return;
> + }
> +
> + SkuIdTable = (SKU_ID *)((UINT8 *)mPcdDatabase.DxeDb +
> mPcdDatabase.DxeDb->SkuIdTableOffset);
> + for (Index = 0; Index < SkuIdTable[0]; Index++) {
> + if (SkuId == SkuIdTable[Index + 1]) {
> + DEBUG ((DEBUG_INFO, "PcdDxe - SkuId is found in SkuId table.\n"));
> + Status = UpdatePcdDatabase (SkuId, TRUE);
> + if (!EFI_ERROR (Status)) {
> + mPcdDatabase.DxeDb->SystemSkuId = (SKU_ID)SkuId;
> + DEBUG ((DEBUG_INFO, "PcdDxe - 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, "PcdDxe - 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
> +DxePcdGet8 (
> + 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
> +DxePcdGet16 (
> + 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
> +DxePcdGet32 (
> + 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
> +DxePcdGet64 (
> + 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 retrived.
> +
> +**/
> +VOID *
> +EFIAPI
> +DxePcdGetPtr (
> + 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
> +DxePcdGetBool (
> + 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
> +DxePcdGetSize (
> + IN UINTN TokenNumber
> + )
> +{
> + UINTN Size;
> + UINT32 *LocalTokenNumberTable;
> + BOOLEAN IsPeiDb;
> + UINTN MaxSize;
> + UINTN TmpTokenNumber;
> +
> + //
> + // 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--;
> +
> + //
> + // Backup the TokenNumber passed in as GetPtrTypeSize need the original
> TokenNumber
> + //
> + TmpTokenNumber = 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 < mPcdTotalTokenCount + 1);
> +
> + // 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.
> + IsPeiDb = (BOOLEAN)(TokenNumber + 1 < mPeiLocalTokenCount + 1);
> +
> + TokenNumber = IsPeiDb ? TokenNumber :
> + (TokenNumber - mPeiLocalTokenCount);
> +
> + LocalTokenNumberTable = IsPeiDb ? (UINT32 *)((UINT8
> *)mPcdDatabase.PeiDb + mPcdDatabase.PeiDb-
> >LocalTokenNumberTableOffset)
> + : (UINT32 *)((UINT8 *)mPcdDatabase.DxeDb +
> mPcdDatabase.DxeDb->LocalTokenNumberTableOffset);
> +
> + Size = (LocalTokenNumberTable[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 (TmpTokenNumber, &MaxSize);
> + } 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
> +DxePcdGet8Ex (
> + IN CONST EFI_GUID *Guid,
> + IN UINTN ExTokenNumber
> + )
> +{
> + if (CheckPcdInFsp (Guid)) {
> + ASSERT (CachedFspPiPcdProtocol != NULL);
> + return CachedFspPiPcdProtocol->Get8 (Guid, 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
> +DxePcdGet16Ex (
> + IN CONST EFI_GUID *Guid,
> + IN UINTN ExTokenNumber
> + )
> +{
> + if (CheckPcdInFsp (Guid)) {
> + ASSERT (CachedFspPiPcdProtocol != NULL);
> + return CachedFspPiPcdProtocol->Get16 (Guid, 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
> +DxePcdGet32Ex (
> + IN CONST EFI_GUID *Guid,
> + IN UINTN ExTokenNumber
> + )
> +{
> + if (CheckPcdInFsp (Guid)) {
> + ASSERT (CachedFspPiPcdProtocol != NULL);
> + return CachedFspPiPcdProtocol->Get32 (Guid, 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
> +DxePcdGet64Ex (
> + IN CONST EFI_GUID *Guid,
> + IN UINTN ExTokenNumber
> + )
> +{
> + if (CheckPcdInFsp (Guid)) {
> + ASSERT (CachedFspPiPcdProtocol != NULL);
> + return CachedFspPiPcdProtocol->Get64 (Guid, 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 retrived.
> +
> +**/
> +VOID *
> +EFIAPI
> +DxePcdGetPtrEx (
> + IN CONST EFI_GUID *Guid,
> + IN UINTN ExTokenNumber
> + )
> +{
> + if (CheckPcdInFsp (Guid)) {
> + ASSERT (CachedFspPiPcdProtocol != NULL);
> + return CachedFspPiPcdProtocol->GetPtr (Guid, 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
> +DxePcdGetBoolEx (
> + IN CONST EFI_GUID *Guid,
> + IN UINTN ExTokenNumber
> + )
> +{
> + if (CheckPcdInFsp (Guid)) {
> + ASSERT (CachedFspPiPcdProtocol != NULL);
> + return CachedFspPiPcdProtocol->GetBool (Guid, 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
> +DxePcdGetSizeEx (
> + IN CONST EFI_GUID *Guid,
> + IN UINTN ExTokenNumber
> + )
> +{
> + if (CheckPcdInFsp (Guid)) {
> + ASSERT (CachedFspPiPcdProtocol != NULL);
> + return CachedFspPiPcdProtocol->GetSize (Guid, ExTokenNumber);
> + }
> +
> + return DxePcdGetSize (GetExPcdTokenNumber (Guid,
> (UINT32)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
> +DxePcdSet8 (
> + 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
> +DxePcdSet16 (
> + 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
> +DxePcdSet32 (
> + 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
> +DxePcdSet64 (
> + 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
> +DxePcdSetPtr (
> + 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
> +DxePcdSetBool (
> + 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
> +DxePcdSet8Ex (
> + IN CONST EFI_GUID *Guid,
> + IN UINTN ExTokenNumber,
> + IN UINT8 Value
> + )
> +{
> + if (CheckPcdInFsp (Guid)) {
> + ASSERT (CachedFspPiPcdProtocol != NULL);
> + return CachedFspPiPcdProtocol->Set8 (Guid, ExTokenNumber, 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
> +DxePcdSet16Ex (
> + IN CONST EFI_GUID *Guid,
> + IN UINTN ExTokenNumber,
> + IN UINT16 Value
> + )
> +{
> + //
> + // PcdSetNvStoreDefaultId should be set in PEI phase to take effect.
> + //
> + ASSERT (
> + !(CompareGuid (Guid, &gEfiMdeModulePkgTokenSpaceGuid) &&
> + (ExTokenNumber == PcdToken (PcdSetNvStoreDefaultId)))
> + );
> + if (CheckPcdInFsp (Guid)) {
> + ASSERT (CachedFspPiPcdProtocol != NULL);
> + return CachedFspPiPcdProtocol->Set16 (Guid, ExTokenNumber, 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
> +DxePcdSet32Ex (
> + IN CONST EFI_GUID *Guid,
> + IN UINTN ExTokenNumber,
> + IN UINT32 Value
> + )
> +{
> + if (CheckPcdInFsp (Guid)) {
> + ASSERT (CachedFspPiPcdProtocol != NULL);
> + return CachedFspPiPcdProtocol->Set32 (Guid, ExTokenNumber, 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
> +DxePcdSet64Ex (
> + IN CONST EFI_GUID *Guid,
> + IN UINTN ExTokenNumber,
> + IN UINT64 Value
> + )
> +{
> + if (CheckPcdInFsp (Guid)) {
> + ASSERT (CachedFspPiPcdProtocol != NULL);
> + return CachedFspPiPcdProtocol->Set64 (Guid, ExTokenNumber, 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] 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
> +DxePcdSetPtrEx (
> + IN CONST EFI_GUID *Guid,
> + IN UINTN ExTokenNumber,
> + IN OUT UINTN *SizeOfBuffer,
> + IN VOID *Buffer
> + )
> +{
> + if (CheckPcdInFsp (Guid)) {
> + ASSERT (CachedFspPiPcdProtocol != NULL);
> + return CachedFspPiPcdProtocol->SetPtr (Guid, ExTokenNumber,
> SizeOfBuffer, Buffer);
> + }
> +
> + return ExSetWorker (ExTokenNumber, Guid, 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] 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
> +DxePcdSetBoolEx (
> + IN CONST EFI_GUID *Guid,
> + IN UINTN ExTokenNumber,
> + IN BOOLEAN Value
> + )
> +{
> + if (CheckPcdInFsp (Guid)) {
> + ASSERT (CachedFspPiPcdProtocol != NULL);
> + return CachedFspPiPcdProtocol->SetBool (Guid, ExTokenNumber, 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] TokenNumber 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
> +DxeRegisterCallBackOnSet (
> + IN CONST EFI_GUID *Guid OPTIONAL,
> + IN UINTN TokenNumber,
> + IN PCD_PROTOCOL_CALLBACK CallBackFunction
> + )
> +{
> + EFI_STATUS Status;
> +
> + if (CallBackFunction == NULL) {
> + return EFI_INVALID_PARAMETER;
> + }
> +
> + //
> + // Aquire lock to prevent reentrance from TPL_CALLBACK level
> + //
> + EfiAcquireLock (&mPcdDatabaseLock);
> +
> + Status = DxeRegisterCallBackWorker (TokenNumber, Guid,
> CallBackFunction);
> +
> + EfiReleaseLock (&mPcdDatabaseLock);
> +
> + return Status;
> +}
> +
> +/**
> + 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] TokenNumber 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
> +DxeUnRegisterCallBackOnSet (
> + IN CONST EFI_GUID *Guid OPTIONAL,
> + IN UINTN TokenNumber,
> + IN PCD_PROTOCOL_CALLBACK CallBackFunction
> + )
> +{
> + EFI_STATUS Status;
> +
> + if (CallBackFunction == NULL) {
> + return EFI_INVALID_PARAMETER;
> + }
> +
> + //
> + // Aquire lock to prevent reentrance from TPL_CALLBACK level
> + //
> + EfiAcquireLock (&mPcdDatabaseLock);
> +
> + Status = DxeUnRegisterCallBackWorker (TokenNumber, Guid,
> CallBackFunction);
> +
> + EfiReleaseLock (&mPcdDatabaseLock);
> +
> + return Status;
> +}
> +
> +/**
> + 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 retrieve the next token.
> + 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
> +DxePcdGetNextToken (
> + IN CONST EFI_GUID *Guid OPTIONAL,
> + IN OUT UINTN *TokenNumber
> + )
> +{
> + EFI_STATUS Status;
> + BOOLEAN PeiExMapTableEmpty;
> + BOOLEAN DxeExMapTableEmpty;
> +
> + Status = EFI_NOT_FOUND;
> + PeiExMapTableEmpty = mPeiExMapTableEmpty;
> + DxeExMapTableEmpty = mDxeExMapTableEmpty;
> +
> + //
> + // Scan the local token space
> + //
> + if (Guid == NULL) {
> + // 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.
> + if (((*TokenNumber + 1 > mPeiNexTokenCount + 1) && (*TokenNumber + 1
> <= mPeiLocalTokenCount + 1)) ||
> + ((*TokenNumber + 1 > (mPeiLocalTokenCount + mDxeNexTokenCount +
> 1))))
> + {
> + return EFI_NOT_FOUND;
> + }
> +
> + (*TokenNumber)++;
> + if ((*TokenNumber + 1 > mPeiNexTokenCount + 1) &&
> + (*TokenNumber + 1 <= mPeiLocalTokenCount + 1))
> + {
> + //
> + // The first Non-Ex type Token Number for DXE PCD
> + // database is mPeiLocalTokenCount + 1
> + //
> + if (mDxeNexTokenCount > 0) {
> + *TokenNumber = mPeiLocalTokenCount + 1;
> + } else {
> + *TokenNumber = PCD_INVALID_TOKEN_NUMBER;
> + return EFI_NOT_FOUND;
> + }
> + } else if (*TokenNumber + 1 > mDxeNexTokenCount + mPeiLocalTokenCount
> + 1) {
> + *TokenNumber = PCD_INVALID_TOKEN_NUMBER;
> + return EFI_NOT_FOUND;
> + }
> +
> + return EFI_SUCCESS;
> + }
> +
> + if (PeiExMapTableEmpty && DxeExMapTableEmpty) {
> + return EFI_NOT_FOUND;
> + }
> +
> + if (!PeiExMapTableEmpty) {
> + Status = ExGetNextTokeNumber (
> + Guid,
> + TokenNumber,
> + (EFI_GUID *)((UINT8 *)mPcdDatabase.PeiDb + mPcdDatabase.PeiDb-
> >GuidTableOffset),
> + mPeiGuidTableSize,
> + (DYNAMICEX_MAPPING *)((UINT8 *)mPcdDatabase.PeiDb +
> mPcdDatabase.PeiDb->ExMapTableOffset),
> + mPeiExMapppingTableSize
> + );
> + }
> +
> + if (Status == EFI_SUCCESS) {
> + return Status;
> + }
> +
> + if (!DxeExMapTableEmpty) {
> + Status = ExGetNextTokeNumber (
> + Guid,
> + TokenNumber,
> + (EFI_GUID *)((UINT8 *)mPcdDatabase.DxeDb +
> mPcdDatabase.DxeDb->GuidTableOffset),
> + mDxeGuidTableSize,
> + (DYNAMICEX_MAPPING *)((UINT8 *)mPcdDatabase.DxeDb +
> mPcdDatabase.DxeDb->ExMapTableOffset),
> + mDxeExMapppingTableSize
> + );
> + }
> +
> + return Status;
> +}
> +
> +/**
> + Get all token space guid table which is different with given token space guid.
> +
> + @param ExMapTableSize The size of ExMapTable in item
> + @param ExMapTable Token space guid table that want to be scaned.
> + @param GuidTable Guid table
> +
> + @return all token space guid table which is different with given token space
> guid.
> +
> +**/
> +EFI_GUID **
> +GetDistinctTokenSpace (
> + IN OUT UINTN *ExMapTableSize,
> + IN DYNAMICEX_MAPPING *ExMapTable,
> + IN EFI_GUID *GuidTable
> + )
> +{
> + EFI_GUID **DistinctTokenSpace;
> + UINTN OldGuidIndex;
> + UINTN TsIdx;
> + UINTN TempTsIdx;
> + UINTN Idx;
> + BOOLEAN Match;
> +
> + DistinctTokenSpace = AllocateZeroPool (*ExMapTableSize * sizeof (EFI_GUID
> *));
> + ASSERT (DistinctTokenSpace != NULL);
> +
> + TsIdx = 0;
> + OldGuidIndex = ExMapTable[0].ExGuidIndex;
> + DistinctTokenSpace[TsIdx] = &GuidTable[OldGuidIndex];
> + for (Idx = 1; Idx < *ExMapTableSize; Idx++) {
> + Match = FALSE;
> + OldGuidIndex = ExMapTable[Idx].ExGuidIndex;
> + for (TempTsIdx = 0; TempTsIdx <= TsIdx; TempTsIdx++) {
> + if (&GuidTable[OldGuidIndex] == DistinctTokenSpace[TempTsIdx]) {
> + //
> + // Have recorded this GUID.
> + //
> + Match = TRUE;
> + break;
> + }
> + }
> +
> + if (!Match) {
> + DistinctTokenSpace[++TsIdx] = &GuidTable[OldGuidIndex];
> + }
> + }
> +
> + //
> + // The total number of Distinct Token Space
> + // is TsIdx + 1 because we use TsIdx as a index
> + // to the DistinctTokenSpace[]
> + //
> + *ExMapTableSize = TsIdx + 1;
> + return DistinctTokenSpace;
> +}
> +
> +/**
> + 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
> +DxePcdGetNextTokenSpace (
> + IN OUT CONST EFI_GUID **Guid
> + )
> +{
> + UINTN Idx;
> + UINTN Idx2;
> + UINTN Idx3;
> + UINTN PeiTokenSpaceTableSize;
> + UINTN DxeTokenSpaceTableSize;
> + EFI_GUID **PeiTokenSpaceTable;
> + EFI_GUID **DxeTokenSpaceTable;
> + BOOLEAN Match;
> + BOOLEAN PeiExMapTableEmpty;
> + BOOLEAN DxeExMapTableEmpty;
> +
> + ASSERT (Guid != NULL);
> +
> + PeiExMapTableEmpty = mPeiExMapTableEmpty;
> + DxeExMapTableEmpty = mDxeExMapTableEmpty;
> +
> + if (PeiExMapTableEmpty && DxeExMapTableEmpty) {
> + return EFI_NOT_FOUND;
> + }
> +
> + if (TmpTokenSpaceBuffer[0] == NULL) {
> + PeiTokenSpaceTableSize = 0;
> +
> + if (!PeiExMapTableEmpty) {
> + PeiTokenSpaceTableSize = mPeiExMapppingTableSize / sizeof
> (DYNAMICEX_MAPPING);
> + PeiTokenSpaceTable = GetDistinctTokenSpace (
> + &PeiTokenSpaceTableSize,
> + (DYNAMICEX_MAPPING *)((UINT8 *)mPcdDatabase.PeiDb +
> mPcdDatabase.PeiDb->ExMapTableOffset),
> + (EFI_GUID *)((UINT8 *)mPcdDatabase.PeiDb +
> mPcdDatabase.PeiDb->GuidTableOffset)
> + );
> + CopyMem (TmpTokenSpaceBuffer, PeiTokenSpaceTable, sizeof (EFI_GUID
> *) * PeiTokenSpaceTableSize);
> + TmpTokenSpaceBufferCount = PeiTokenSpaceTableSize;
> + FreePool (PeiTokenSpaceTable);
> + }
> +
> + if (!DxeExMapTableEmpty) {
> + DxeTokenSpaceTableSize = mDxeExMapppingTableSize / sizeof
> (DYNAMICEX_MAPPING);
> + DxeTokenSpaceTable = GetDistinctTokenSpace (
> + &DxeTokenSpaceTableSize,
> + (DYNAMICEX_MAPPING *)((UINT8 *)mPcdDatabase.DxeDb
> + mPcdDatabase.DxeDb->ExMapTableOffset),
> + (EFI_GUID *)((UINT8 *)mPcdDatabase.DxeDb +
> mPcdDatabase.DxeDb->GuidTableOffset)
> + );
> +
> + //
> + // Make sure EFI_GUID in DxeTokenSpaceTable does not exist in
> PeiTokenSpaceTable
> + //
> + for (Idx2 = 0, Idx3 = PeiTokenSpaceTableSize; Idx2 <
> DxeTokenSpaceTableSize; Idx2++) {
> + Match = FALSE;
> + for (Idx = 0; Idx < PeiTokenSpaceTableSize; Idx++) {
> + if (CompareGuid (TmpTokenSpaceBuffer[Idx],
> DxeTokenSpaceTable[Idx2])) {
> + Match = TRUE;
> + break;
> + }
> + }
> +
> + if (!Match) {
> + TmpTokenSpaceBuffer[Idx3++] = DxeTokenSpaceTable[Idx2];
> + }
> + }
> +
> + TmpTokenSpaceBufferCount = Idx3;
> + FreePool (DxeTokenSpaceTable);
> + }
> + }
> +
> + if (*Guid == NULL) {
> + *Guid = TmpTokenSpaceBuffer[0];
> + return EFI_SUCCESS;
> + }
> +
> + for (Idx = 0; Idx < TmpTokenSpaceBufferCount; Idx++) {
> + if (CompareGuid (*Guid, TmpTokenSpaceBuffer[Idx])) {
> + if (Idx == TmpTokenSpaceBufferCount - 1) {
> + //
> + // It has been the last token namespace.
> + //
> + *Guid = NULL;
> + return EFI_NOT_FOUND;
> + } else {
> + Idx++;
> + *Guid = TmpTokenSpaceBuffer[Idx];
> + return EFI_SUCCESS;
> + }
> + }
> + }
> +
> + return EFI_NOT_FOUND;
> +}
> diff --git
> a/Platform/AMD/VanGoghBoard/Override/edk2/MdeModulePkg/Universal/
> PCD/Dxe/Pcd.inf
> b/Platform/AMD/VanGoghBoard/Override/edk2/MdeModulePkg/Universal/
> PCD/Dxe/Pcd.inf
> new file mode 100644
> index 0000000000..0799e4cd96
> --- /dev/null
> +++
> b/Platform/AMD/VanGoghBoard/Override/edk2/MdeModulePkg/Universal/
> PCD/Dxe/Pcd.inf
> @@ -0,0 +1,366 @@
> +## @file
> +# PCD DXE Module INF file
> +#
> +# Copyright (C) 2024 Advanced Micro Devices, Inc. All rights reserved.<BR>
> +# SPDX-License-Identifier: BSD-2-Clause-Patent
> +#
> +##
Please put AMD copy right under Intel's.
> +
> +## @file
> +# PCD DXE driver manage database contains all dynamic PCD entries and
> produce the implementation of PCD protocol.
> +#
> +# This version PCD DXE depends on the external PCD database binary file, not
> built in PCD data base.
> +# There are two PCD Protocols as follows:
> +# 1) PCD_PROTOCOL
> +# It is EDKII implementation which support Dynamic/DynamicEx type Pcds.
> +# 2) EFI_PCD_PROTOCOL
> +# It is defined by PI specification 1.2, Vol 3 which only support dynamicEx
> +# type Pcd.
> +#
> +# For dynamicEx type PCD, it is compatible between PCD_PROTOCOL and
> EFI_PCD_PROTOCOL.
> +# PCD DXE driver will produce above two protocols at same time.
> +#
> +# PCD database is generated as the separate binary image at build time. The
> binary image
> +# will be intergrated into Firmware volume together with PCD driver.
> +#
> +#
> //////////////////////////////////////////////////////////////////////////////
> //
> +# // //
> +# // Introduction of PCD database //
> +# // //
> +#
> //////////////////////////////////////////////////////////////////////////////
> //
> +#
> +# 1, Introduction
> +# PCD database hold all dynamic type PCD information. The structure of PEI
> PCD
> +# database is generated by build tools according to dynamic PCD usage for
> +# specified platform.
> +#
> +# 2, Dynamic Type PCD
> +# Dynamic type PCD is used for the configuration/setting which value is
> determined
> +# dynamic. In contrast, the value of static type PCD (FeatureFlag, FixedPcd,
> +# PatchablePcd) is fixed in final generated FD image in build time.
> +#
> +# 2.1 The "dynamic" determination means one of below cases:
> +# a) The PCD setting value is produced by someone driver and consumed
> by
> +# other driver in execution time.
> +# b) The PCD setting value is set/get by user from FrontPage.
> +# c) The PCD setting value is produced by platform OEM vendor in specified
> area.
> +#
> +# 2.2 According to module distribution way, dynamic PCD could be classfied
> as:
> +# a) Dynamic:
> +# If module is released in source code and will be built with platform
> +# DSC, the dynamic PCD used by this module can be accessed as:
> +# PcdGetxx(PcdSampleDynamicPcd);
> +# In building platform, build tools will translate PcdSampleDynamicPcd to
> +# pair of {Token Space Guid: Token Number} for this PCD.
> +# b) DynamicEx:
> +# If module is release as binary and will not pariticpate platform building,
> +# the dynamic PCD used by this module need be accessed as:
> +# PcdGetxxEx(gEfiMyTokenspaceGuid, PcdSampleDynamicPcd)
> +# Developer need explicity gives {Token Space Guid:Token Number} as
> parameter
> +# in writting source code.
> +#
> +# 2.3 According to PCD value's storage method, dynamic PCD could be
> classfied as:
> +# a) Default Storage:
> +# - The PCD value is stored in PCD database maintained by PCD driver in
> boot
> +# time memory.
> +# - This type is used for communication between PEIM/DXE driver,
> DXE/DXE
> +# driver. But all set/get value will be losted after boot-time memory
> +# is turn off.
> +# - [PcdsDynamicDefault] is used as section name for this type PCD in
> +# platform DSC file. [PcdsDynamicExDefault] is used for dynamicEx type
> PCD.
> +#
> +# b) Variable Storage:
> +# - The PCD value is stored in variable area.
> +# - As default storage type, this type PCD could be used for PEI/DXE driver
> +# communication. But beside it, this type PCD could also be used to
> store
> +# the value associate with a HII setting via variable interface.
> +# - In PEI phase, the PCD value could only be got but can not be set due
> +# to variable area is readonly.
> +# - [PcdsDynamicHii] is used as section name for this type PCD in platform
> +# DSC file. [PcdsDynamicExHii] is for dynamicEx type PCD.
> +#
> +# c) OEM specificed storage area:
> +# - The PCD value is stored in OEM specified area which base address is
> +# specified by PCD setting - PcdVpdBaseAddress64 or
> PcdVpdBaseAddress.
> +# - The area is read only for PEI and DXE phase.
> +# - [PcdsDynamicVpd] is used as section name for this type PCD in
> platform
> +# DSC file. [PcdsDynamicExVpd] is for dynamicex type PCD.
> +#
> +# 2.4 When and how to use dynamic PCD
> +# Module developer do not care the used PCD is dynamic or static when
> writting
> +# source code/INF. Dynamic PCD and dynamic type is pointed by platform
> integrator
> +# in platform DSC file. Please ref section 2.3 to get matching between
> dynamic
> +# PCD type and section name in DSC file.
> +#
> +# 3, PCD database:
> +# Although dynamic PCD could be in different storage type as above
> description,
> +# but the basic information and default value for all dynamic PCD is hold
> +# by PCD database maintained by PEI/DXE driver.
> +#
> +# As the whole EFI BIOS boot path is divided into PEI/DXE phase, the PCD
> database
> +# also is divided into Pei/Dxe database maintaied by PcdPeim/PcdDxe driver
> separatly.
> +# To make PcdPeim's driver image smaller, PEI PCD database only hold all
> dynamic
> +# PCD information used in PEI phase or use in both PEI/DXE phase. And DXE
> PCD
> +# database contains all PCDs used in PEI/DXE phase in memory.
> +#
> +# Build tool will generate PCD database into the separate binary file for
> +# PEI/DXE PCD driver according to dynamic PCD section in platform DSC file.
> +#
> +# 3.1 PcdPeim and PcdDxe
> +# PEI PCD database is maintained by PcdPeim driver run from flash.
> PcdPeim driver
> +# build guid hob in temporary memory and copy the binary data base from
> flash
> +# to temporary memory for PEI PCD database.
> +# DXE PCD database is maintained by PcdDxe driver.At entry point of
> PcdDxe driver,
> +# a new PCD database is allocated in boot-time memory which including all
> +# PEI PCD and DXE PCD entry.
> +#
> +# Pcd driver should run as early as possible before any other driver access
> +# dynamic PCD's value. PEI/DXE "Apriori File" mechanism make it possible
> by
> +# making PcdPeim/PcdDxe as first dispatching driver in PEI/DXE phase.
> +#
> +# 3.2 Token space Guid/Token number, Platform token, Local token number
> +# Dynamic PCD
> +# +-----------+ +---------+
> +# |TokenSpace | |Platform |
> +# | Guid | build tool | Token |
> +# | + +-------------->| Number |
> +# | Token | +---------+`._
> +# | Number | `.
> +# +-----------+ `. +------+
> +# `-|Local |
> +# |Token |
> +# DynamicEx PCD ,-|Number|
> +# +-----------+ ,-' +------+
> +# |TokenSpace | ,-'
> +# | Guid | _,-'
> +# | + +.'
> +# | Token |
> +# | Number |
> +# +-----------+
> +#
> +#
> +# 3.2.1 Pair of Token space guid + Token number
> +# Any type PCD is identified by pair of "TokenSpaceGuid + TokeNumber".
> But it
> +# is not easy maintained by PCD driver, and hashed token number will
> make
> +# searching slowly.
> +#
> +# 3.2.2 Platform Token Number
> +# "Platform token number" concept is introduced for mapping to a pair of
> +# "TokenSpaceGuid + TokenNumber". The platform token number is
> generated by
> +# build tool in autogen.h and all of them are continual in a platform scope
> +# started from 1.(0 meaning invalid internal token number)
> +# With auto-generated "platform token number",
> PcdGet(PcdSampleDynamicPcd)
> +# in source code is translated to
> LibPcdGet(_PCD_TOKEN_PcdSampleDynamicPcd)
> +# in autogen.h.
> +# Notes: The mapping between pair of "tokenspace guid + token number"
> and
> +# "internal token number" need build tool establish, so "platform token
> number"
> +# mechanism is not suitable for binary module which use DynamicEx type
> PCD.
> +# To access a dynamicEx type PCD, pair of "token space guid/token
> number" all need
> +# to be specificed for PcdSet/PcdGet accessing macro.
> +#
> +# Platform Token Number is started from 1, and inceased continuous.
> From whole
> +# platform scope, there are two zones: PEI Zone and DXE Zone
> +# | Platform Token Number
> +# ----------|----------------------------------------------------------------
> +# PEI Zone: | 1 ~ PEI_LOCAL_TOKEN_NUMBER
> +# DXE Zone: | (PEI_LOCAL_TOKEN_NUMBER + 1) ~
> (PEI_LOCAL_TOKEN_NUMBER + DXE_LOCAL_TOKEN_NUMBER)
> +#
> +# 3.2.3 Local Token Number
> +# To fast searching a PCD entry in PCD database, PCD driver translate
> +# platform token number to local token number via a mapping table.
> +# For binary DynamicEx type PCD, there is a another mapping table to
> translate
> +# "token space guid + token number" to local token number directly.
> +# Local token number is identifier for all internal interface in PCD PEI/DXE
> +# driver.
> +#
> +# A local token number is a 32-bit value in following meaning:
> +# 32 ------------- 28 ---------- 24 -------- 0
> +# | PCD type mask | Datum Type | Offset |
> +# +-----------------------------------------+
> +# where:
> +# PCd type mask: indicate Pcd type from following macro:
> +# PCD_TYPE_DATA
> +# PCD_TYPE_HII
> +# PCD_TYPE_VPD
> +# PCD_TYPE_STRING
> +# Datum Type : indicate PCD vaue type from following macro:
> +# PCD_DATUM_TYPE_POINTER
> +# PCD_DATUM_TYPE_UINT8
> +# PCD_DATUM_TYPE_UINT16
> +# PCD_DATUM_TYPE_UINT32
> +# PCD_DATUM_TYPE_UINT64
> +# Offset : indicate the related offset of PCD value in PCD database
> array.
> +# Based on local token number, PCD driver could fast determine PCD type,
> value
> +# type and get PCD entry from PCD database.
> +#
> +# 3.3 PCD Database binary file
> +# PCD Database binary file will be created at build time as the standalone
> binary image.
> +# To understand the binary image layout, PCD Database C structure is still
> generated
> +# as comments by build tools in PCD driver's autogen.h/
> +# autogen.c file. In generated C structure, following information is stored:
> +# - ExMapTable: This table is used translate a binary dynamicex type PCD's
> +# "tokenguid + token" to local token number.
> +# - LocalTokenNumberTable:
> +# This table stores all local token number in array, use "Internal
> +# token number" as array index to get PCD entry's offset fastly.
> +# - SizeTable: This table stores the size information for all PCD entry.
> +# - GuidTable: This table stores guid value for DynamicEx's token space,
> +# HII type PCD's variable GUID.
> +# - SkuIdTable: TBD
> +# - SystemSkuId: TBD
> +# - PCD value structure:
> +# Every PCD has a value record in PCD database. For different
> +# datum type PCD has different record structure which will be
> +# introduced in 3.3.1
> +#
> +# In a PCD database structure, there are two major area: Init and UnInit.
> +# Init area is use stored above PCD internal structure such as ExMapTable,
> +# LocalTokenNumberTable etc and the (default) value of PCD which has
> default
> +# value specified in platform DSC file.
> +# Unint area is used stored the value of PCD which has no default value in
> +# platform DSC file, the value of NULL, 0 specified in platform DSC file can
> +# be seemed as "no default value".
> +#
> +# 3.3.1 Simple Sample PCD Database C Structure
> +# A general sample of PCD database structue is as follows:
> +# typedef struct _PCD_DATABASE {
> +# typedef struct _PCD_DATABASE_INIT {
> +# //===== Following is PCD database internal maintain structures
> +# DYNAMICEX_MAPPING ExMapTable[PEI_EXMAPPING_TABLE_SIZE];
> +# UINT32
> LocalTokenNumberTable[PEI_LOCAL_TOKEN_NUMBER_TABLE_SIZE];
> +# GUID GuidTable[PEI_GUID_TABLE_SIZE];
> +# SIZE_INFO SizeTable[PEI_SIZE_TABLE_SIZE];
> +# UINT8 SkuIdTable[PEI_SKUID_TABLE_SIZE];
> +# SKU_ID SystemSkuId;
> +#
> +# //===== Following is value structure for PCD with default value
> +# ....
> +# ....
> +# ....
> +# } Init;
> +# typedef struct _PCD_DATABSE_UNINIT {
> +# //==== Following is value structure for PCD without default value
> +# ....
> +# ....
> +# } UnInit;
> +# }
> +#
> +# 3.3.2 PCD value structure in PCD database C structure
> +# The value's structure is generated by build tool in PCD database C
> structure.
> +# The PCDs in different datum type has different value structure.
> +#
> +# 3.3.2.1 UINT8/UINT16/UINT32/UINT64 datum type PCD
> +# The C structure for these datum type PCD is just a
> UINT8/UINT16/UINT32/UINT64
> +# data member in PCD database, For example:
> +# UINT16
> PcdHardwareErrorRecordLevel_d3705011_bc19_4af7_be16_f68030378c15_
> VariableDefault_0;
> +# Above structure is generated by build tool, the member name is
> "PcdCName_Guidvalue"
> +# Member type is UINT16 according to PcdHardwareErrorRecordLevel
> declaration
> +# in DEC file.
> +#
> +# 3.3.2.2 VOID* datum type PCD
> +# The value of VOID* datum type PCD is a UINT8/UINT16 array in PCD
> database.
> +#
> +# 3.3.2.2.1 VOID* - string type
> +# If the default value for VOID* datum type PCD like L"xxx", the PCD is
> +# used for unicode string, and C structure of this datum type PCD is
> +# UINT16 string array in PCD database, for example:
> +# UINT16 StringTable[29];
> +# The number of 29 in above sample is max size of a unicode string.
> +#
> +# If the default value for VOID* datum type PCD like "xxx", the PCD is
> +# used for ascii string, and C structure of this datum type PCD is
> +# UINT8 string array in PCD database, for example:
> +# UINT8 StringTable[20];
> +# The number of 20 in above sample is max size of a ascii string.
> +#
> +# 3.3.2.2.2 VOID* - byte array
> +# If the default value of VOID* datum type PCD like {'0x29', '0x01',
> '0xf2'}
> +# the PCD is used for byte array. The generated structrue is same as
> +# above ascii string table,
> +# UINT8 StringTable[13];
> +# The number of 13 in above sample is max size of byte array.
> +#
> +# 3.3.3 Some utility structures in PCD Database
> +# 3.3.3.1 GuidTable
> +# GuidTable array is used to store all related GUID value in PCD database:
> +# - Variable GUID for HII type PCD
> +# - Token space GUID for dynamicex type PCD
> +#
> +# Copyright (c) 2006 - 2018, Intel Corporation. All rights reserved.<BR>
> +#
> +# SPDX-License-Identifier: BSD-2-Clause-Patent
> +#
> +#
> +##
> +
> +[Defines]
> + INF_VERSION = 0x00010005
> + BASE_NAME = PcdDxe
> + MODULE_UNI_FILE = PcdDxe.uni
> + FILE_GUID = 80CF7257-87AB-47f9-A3FE-D50B76D89541
> + MODULE_TYPE = DXE_DRIVER
> + VERSION_STRING = 4.0
> + PCD_IS_DRIVER = DXE_PCD_DRIVER
> + ENTRY_POINT = PcdDxeInit
> +
> +#
> +# The following information is for reference only and not required by the build
> tools.
> +#
> +# VALID_ARCHITECTURES = IA32 X64 EBC
> +#
> +
> +[Sources]
> + Pcd.c
> + Service.c
> + Service.h
> +
> +[Packages]
> + MdePkg/MdePkg.dec
> + MdeModulePkg/MdeModulePkg.dec
> + ChachaniBoardPkg/Project.dec
> + Override/edk2/Fsp2WrapperPkg/Fsp2WrapperPkg.dec
> +
> +[LibraryClasses]
> + UefiRuntimeServicesTableLib
> + BaseMemoryLib
> + UefiBootServicesTableLib
> + MemoryAllocationLib
> + HobLib
> + UefiDriverEntryPoint
> + UefiLib
> + DebugLib
> + BaseLib
> + PcdLib
> + DxeServicesLib
> +
> +[Guids]
> + gPcdDataBaseHobGuid ## SOMETIMES_CONSUMES ## HOB
> + gPcdDataBaseSignatureGuid ## CONSUMES ## GUID # PCD
> database signature GUID.
> + gEfiMdeModulePkgTokenSpaceGuid ## SOMETIMES_CONSUMES ##
> GUID
> + gEfiAmdAgesaModulePkgTokenSpaceGuid
> + gEfiAmdAgesaPkgTokenSpaceGuid
> + gAmdCpmPkgTokenSpaceGuid
> + gAmdFspPkgGuid
> +
> +[Protocols]
> + gPcdProtocolGuid ## PRODUCES
> + gEfiPcdProtocolGuid ## PRODUCES
> + gGetPcdInfoProtocolGuid ## SOMETIMES_PRODUCES
> + gEfiGetPcdInfoProtocolGuid ## SOMETIMES_PRODUCES
> + ## NOTIFY
> + ## SOMETIMES_CONSUMES
> + gEdkiiVariableLockProtocolGuid
> + gFspEfiPcdProtocolGuid
> + gFspEfiGetPcdInfoProtocolGuid
> +
> +[Pcd]
> + gEfiMdeModulePkgTokenSpaceGuid.PcdVpdBaseAddress ##
> SOMETIMES_CONSUMES
> + gEfiMdeModulePkgTokenSpaceGuid.PcdVpdBaseAddress64 ##
> SOMETIMES_CONSUMES
> + gEfiMdeModulePkgTokenSpaceGuid.PcdSetNvStoreDefaultId ##
> SOMETIMES_CONSUMES
> + gIntelFsp2WrapperTokenSpaceGuid.PcdFspModeSelection
> +
> +[Depex]
> + TRUE
> +
> +[UserExtensions.TianoCore."ExtraFiles"]
> + PcdDxeExtra.uni
> diff --git
> a/Platform/AMD/VanGoghBoard/Override/edk2/MdeModulePkg/Universal/
> PCD/Pei/Pcd.c
> b/Platform/AMD/VanGoghBoard/Override/edk2/MdeModulePkg/Universal/
> PCD/Pei/Pcd.c
> new file mode 100644
> index 0000000000..2a4045bd36
> --- /dev/null
> +++
> b/Platform/AMD/VanGoghBoard/Override/edk2/MdeModulePkg/Universal/
> PCD/Pei/Pcd.c
> @@ -0,0 +1,1876 @@
> +/** @file
> + All Pcd Ppi services are implemented here.
> +
> +Copyright (C) 2024 Advanced Micro Devices, Inc. All rights reserved.<BR>
> +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"
> +
> +extern EFI_GUID gEfiAmdAgesaModulePkgTokenSpaceGuid;
> +extern EFI_GUID gEfiAmdAgesaPkgTokenSpaceGuid;
> +extern EFI_GUID gFspEfiGetPcdInfoPpiGuid;
> +extern EFI_GUID gFspEfiPeiPcdPpiGuid;
> +
> +STATIC
> +BOOLEAN
> +CheckPcdInFsp (
> + IN CONST EFI_GUID *InputGuid
> + )
> +{
> + if ( (FixedPcdGet8 (PcdFspModeSelection) == 0) // Dispatch
> mode
> + && ( CompareGuid (InputGuid,
> &gEfiAmdAgesaModulePkgTokenSpaceGuid) // AgesaModulePkg
> + || CompareGuid (InputGuid, &gEfiAmdAgesaPkgTokenSpaceGuid) //
> AgesaPkg
> + || CompareGuid (InputGuid, &gAmdFspPkgGuid) // FspPkg
> + || CompareGuid (InputGuid, &gAmdCpmPkgTokenSpaceGuid))) //
> AmdCpmPkg
> + {
> + return TRUE;
> + }
> +
> + return FALSE;
> +}
> +
> +///
> +/// 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
> + )
> +{
> + if (CheckPcdInFsp (Guid)) {
> + EFI_GET_PCD_INFO_PPI *FspPcdGetInfoPpi = NULL;
> + PeiServicesLocatePpi (&gFspEfiGetPcdInfoPpiGuid, 0, NULL, (VOID
> **)&FspPcdGetInfoPpi);
> + ASSERT (FspPcdGetInfoPpi != NULL);
> + return FspPcdGetInfoPpi->GetInfo (Guid, TokenNumber, 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
> + )
> +{
> + if (CheckPcdInFsp (Guid)) {
> + EFI_PEI_PCD_PPI *FspPcdPpi = NULL;
> + PeiServicesLocatePpi (&gFspEfiPeiPcdPpiGuid, 0, NULL, (VOID
> **)&FspPcdPpi);
> + ASSERT (FspPcdPpi != NULL);
> + return FspPcdPpi->Get8 (Guid, 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
> + )
> +{
> + if (CheckPcdInFsp (Guid)) {
> + EFI_PEI_PCD_PPI *FspPcdPpi = NULL;
> + PeiServicesLocatePpi (&gFspEfiPeiPcdPpiGuid, 0, NULL, (VOID
> **)&FspPcdPpi);
> + ASSERT (FspPcdPpi != NULL);
> + return FspPcdPpi->Get16 (Guid, 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
> + )
> +{
> + if (CheckPcdInFsp (Guid)) {
> + EFI_PEI_PCD_PPI *FspPcdPpi = NULL;
> + PeiServicesLocatePpi (&gFspEfiPeiPcdPpiGuid, 0, NULL, (VOID
> **)&FspPcdPpi);
> + ASSERT (FspPcdPpi != NULL);
> + return FspPcdPpi->Get32 (Guid, 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
> + )
> +{
> + if (CheckPcdInFsp (Guid)) {
> + EFI_PEI_PCD_PPI *FspPcdPpi = NULL;
> + PeiServicesLocatePpi (&gFspEfiPeiPcdPpiGuid, 0, NULL, (VOID
> **)&FspPcdPpi);
> + ASSERT (FspPcdPpi != NULL);
> + return FspPcdPpi->Get64 (Guid, 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
> + )
> +{
> + if (CheckPcdInFsp (Guid)) {
> + EFI_PEI_PCD_PPI *FspPcdPpi = NULL;
> + PeiServicesLocatePpi (&gFspEfiPeiPcdPpiGuid, 0, NULL, (VOID
> **)&FspPcdPpi);
> + ASSERT (FspPcdPpi != NULL);
> + return FspPcdPpi->GetPtr (Guid, 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
> + )
> +{
> + if (CheckPcdInFsp (Guid)) {
> + EFI_PEI_PCD_PPI *FspPcdPpi = NULL;
> + PeiServicesLocatePpi (&gFspEfiPeiPcdPpiGuid, 0, NULL, (VOID
> **)&FspPcdPpi);
> + ASSERT (FspPcdPpi != NULL);
> + return FspPcdPpi->GetBool (Guid, 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
> + )
> +{
> + if (CheckPcdInFsp (Guid)) {
> + EFI_PEI_PCD_PPI *FspPcdPpi = NULL;
> + PeiServicesLocatePpi (&gFspEfiPeiPcdPpiGuid, 0, NULL, (VOID
> **)&FspPcdPpi);
> + ASSERT (FspPcdPpi != NULL);
> + return FspPcdPpi->GetSize (Guid, 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
> + )
> +{
> + if (CheckPcdInFsp (Guid)) {
> + EFI_PEI_PCD_PPI *FspPcdPpi = NULL;
> + PeiServicesLocatePpi (&gFspEfiPeiPcdPpiGuid, 0, NULL, (VOID
> **)&FspPcdPpi);
> + ASSERT (FspPcdPpi != NULL);
> + return FspPcdPpi->Set8 (Guid, ExTokenNumber, 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
> + )
> +{
> + if (CheckPcdInFsp (Guid)) {
> + EFI_PEI_PCD_PPI *FspPcdPpi = NULL;
> + PeiServicesLocatePpi (&gFspEfiPeiPcdPpiGuid, 0, NULL, (VOID
> **)&FspPcdPpi);
> + ASSERT (FspPcdPpi != NULL);
> + return FspPcdPpi->Set16 (Guid, ExTokenNumber, 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
> + )
> +{
> + if (CheckPcdInFsp (Guid)) {
> + EFI_PEI_PCD_PPI *FspPcdPpi = NULL;
> + PeiServicesLocatePpi (&gFspEfiPeiPcdPpiGuid, 0, NULL, (VOID
> **)&FspPcdPpi);
> + ASSERT (FspPcdPpi != NULL);
> + return FspPcdPpi->Set32 (Guid, ExTokenNumber, 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
> + )
> +{
> + if (CheckPcdInFsp (Guid)) {
> + EFI_PEI_PCD_PPI *FspPcdPpi = NULL;
> + PeiServicesLocatePpi (&gFspEfiPeiPcdPpiGuid, 0, NULL, (VOID
> **)&FspPcdPpi);
> + ASSERT (FspPcdPpi != NULL);
> + return FspPcdPpi->Set64 (Guid, ExTokenNumber, 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
> + )
> +{
> + if (CheckPcdInFsp (Guid)) {
> + EFI_PEI_PCD_PPI *FspPcdPpi = NULL;
> + PeiServicesLocatePpi (&gFspEfiPeiPcdPpiGuid, 0, NULL, (VOID
> **)&FspPcdPpi);
> + ASSERT (FspPcdPpi != NULL);
> + return FspPcdPpi->SetPtr (Guid, ExTokenNumber, SizeOfBuffer, 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
> + )
> +{
> + if (CheckPcdInFsp (Guid)) {
> + EFI_PEI_PCD_PPI *FspPcdPpi = NULL;
> + PeiServicesLocatePpi (&gFspEfiPeiPcdPpiGuid, 0, NULL, (VOID
> **)&FspPcdPpi);
> + ASSERT (FspPcdPpi != NULL);
> + return FspPcdPpi->SetBool (Guid, ExTokenNumber, 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;
> + }
> +}
> diff --git
> a/Platform/AMD/VanGoghBoard/Override/edk2/MdeModulePkg/Universal/
> PCD/Pei/Pcd.inf
> b/Platform/AMD/VanGoghBoard/Override/edk2/MdeModulePkg/Universal/
> PCD/Pei/Pcd.inf
> new file mode 100644
> index 0000000000..204f08b958
> --- /dev/null
> +++
> b/Platform/AMD/VanGoghBoard/Override/edk2/MdeModulePkg/Universal/
> PCD/Pei/Pcd.inf
> @@ -0,0 +1,368 @@
> +## @file
> +# PCD PEI Module INF file
> +#
> +# Copyright (C) 2024 Advanced Micro Devices, Inc. All rights reserved.<BR>
> +# SPDX-License-Identifier: BSD-2-Clause-Patent
> +#
> +##
Please put AMD copy right under Intel's.
Thanks
Abner
> +
> +## @file
> +# PCD PEIM produces PCD database to manage all dynamic PCD in PEI phase
> and install Pcd Ppi service.
> +#
> +# This version PCD PEIM depends on the external PCD database binary file,
> not built in PCD data base.
> +# There are two PCD PPIs as follows:
> +# 1) PCD_PPI
> +# It is EDKII implementation which support Dynamic/DynamicEx Pcds.
> +# 2) EFI_PEI_PCD_PPI
> +# It is defined by PI specification 1.2, Vol 3 which only support dynamicEx
> +# type Pcd.
> +# For dynamicEx type PCD, it is compatible between PCD_PPI and
> EFI_PEI_PCD_PPI.
> +# PCD PEIM driver will produce above two PPIs at same time.
> +#
> +# PCD database is generated as the separate binary image at build time. The
> binary image
> +# will be intergrated into Firmware volume together with PCD driver.
> +#
> +#
> //////////////////////////////////////////////////////////////////////////////
> //
> +# // //
> +# // Introduction of PCD database //
> +# // //
> +#
> //////////////////////////////////////////////////////////////////////////////
> //
> +#
> +# 1, Introduction
> +# PCD database hold all dynamic type PCD information. The structure of PEI
> PCD
> +# database is generated by build tools according to dynamic PCD usage for
> +# specified platform.
> +#
> +# 2, Dynamic Type PCD
> +# Dynamic type PCD is used for the configuration/setting which value is
> determined
> +# dynamic. In contrast, the value of static type PCD (FeatureFlag, FixedPcd,
> +# PatchablePcd) is fixed in final generated FD image in build time.
> +#
> +# 2.1 The "dynamic" determination means one of below cases:
> +# a) The PCD setting value is produced by someone driver and consumed
> by
> +# other driver in execution time.
> +# b) The PCD setting value is set/get by user from FrontPage.
> +# c) The PCD setting value is produced by platform OEM vendor in specified
> area.
> +#
> +# 2.2 According to module distribution way, dynamic PCD could be classfied
> as:
> +# a) Dynamic:
> +# If module is released in source code and will be built with platform
> +# DSC, the dynamic PCD used by this module can be accessed as:
> +# PcdGetxx(PcdSampleDynamicPcd);
> +# In building platform, build tools will translate PcdSampleDynamicPcd to
> +# pair of {Token Space Guid: Token Number} for this PCD.
> +# b) DynamicEx:
> +# If module is release as binary and will not pariticpate platform building,
> +# the dynamic PCD used by this module need be accessed as:
> +# PcdGetxxEx(gEfiMyTokenspaceGuid, PcdSampleDynamicPcd)
> +# Developer need explicity gives {Token Space Guid:Token Number} as
> parameter
> +# in writting source code.
> +#
> +# 2.3 According to PCD value's storage method, dynamic PCD could be
> classfied as:
> +# a) Default Storage:
> +# - The PCD value is stored in PCD database maintained by PCD driver in
> boot
> +# time memory.
> +# - This type is used for communication between PEIM/DXE driver,
> DXE/DXE
> +# driver. But all set/get value will be losted after boot-time memory
> +# is turn off.
> +# - [PcdsDynamicDefault] is used as section name for this type PCD in
> +# platform DSC file. [PcdsDynamicExDefault] is used for dynamicEx type
> PCD.
> +#
> +# b) Variable Storage:
> +# - The PCD value is stored in variable area.
> +# - As default storage type, this type PCD could be used for PEI/DXE driver
> +# communication. But beside it, this type PCD could also be used to
> store
> +# the value associate with a HII setting via variable interface.
> +# - In PEI phase, the PCD value could only be got but can not be set due
> +# to variable area is readonly.
> +# - [PcdsDynamicHii] is used as section name for this type PCD in platform
> +# DSC file. [PcdsDynamicExHii] is for dynamicEx type PCD.
> +#
> +# c) OEM specificed storage area:
> +# - The PCD value is stored in OEM specified area which base address is
> +# specified by PCD setting - PcdVpdBaseAddress64 or
> PcdVpdBaseAddress.
> +# - The area is read only for PEI and DXE phase.
> +# - [PcdsDynamicVpd] is used as section name for this type PCD in
> platform
> +# DSC file. [PcdsDynamicExVpd] is for dynamicex type PCD.
> +#
> +# 2.4 When and how to use dynamic PCD
> +# Module developer do not care the used PCD is dynamic or static when
> writting
> +# source code/INF. Dynamic PCD and dynamic type is pointed by platform
> integrator
> +# in platform DSC file. Please ref section 2.3 to get matching between
> dynamic
> +# PCD type and section name in DSC file.
> +#
> +# 3, PCD database:
> +# Although dynamic PCD could be in different storage type as above
> description,
> +# but the basic information and default value for all dynamic PCD is hold
> +# by PCD database maintained by PEI/DXE driver.
> +#
> +# As the whole EFI BIOS boot path is divided into PEI/DXE phase, the PCD
> database
> +# also is divided into Pei/Dxe database maintaied by PcdPeim/PcdDxe driver
> separatly.
> +# To make PcdPeim's driver image smaller, PEI PCD database only hold all
> dynamic
> +# PCD information used in PEI phase or use in both PEI/DXE phase. And DXE
> PCD
> +# database contains all PCDs used in PEI/DXE phase in memory.
> +#
> +# Build tool will generate PCD database into the separate binary file for
> +# PEI/DXE PCD driver according to dynamic PCD section in platform DSC file.
> +#
> +# 3.1 PcdPeim and PcdDxe
> +# PEI PCD database is maintained by PcdPeim driver run from flash.
> PcdPeim driver
> +# build guid hob in temporary memory and copy the binary data base from
> flash
> +# to temporary memory for PEI PCD database.
> +# DXE PCD database is maintained by PcdDxe driver.At entry point of
> PcdDxe driver,
> +# a new PCD database is allocated in boot-time memory which including all
> +# PEI PCD and DXE PCD entry.
> +#
> +# Pcd driver should run as early as possible before any other driver access
> +# dynamic PCD's value. PEI/DXE "Apriori File" mechanism make it possible
> by
> +# making PcdPeim/PcdDxe as first dispatching driver in PEI/DXE phase.
> +#
> +# 3.2 Token space Guid/Token number, Platform token, Local token number
> +# Dynamic PCD
> +# +-----------+ +---------+
> +# |TokenSpace | |Platform |
> +# | Guid | build tool | Token |
> +# | + +-------------->| Number |
> +# | Token | +---------+`._
> +# | Number | `.
> +# +-----------+ `. +------+
> +# `-|Local |
> +# |Token |
> +# DynamicEx PCD ,-|Number|
> +# +-----------+ ,-' +------+
> +# |TokenSpace | ,-'
> +# | Guid | _,-'
> +# | + +.'
> +# | Token |
> +# | Number |
> +# +-----------+
> +#
> +#
> +# 3.2.1 Pair of Token space guid + Token number
> +# Any type PCD is identified by pair of "TokenSpaceGuid + TokeNumber".
> But it
> +# is not easy maintained by PCD driver, and hashed token number will
> make
> +# searching slowly.
> +#
> +# 3.2.2 Platform Token Number
> +# "Platform token number" concept is introduced for mapping to a pair of
> +# "TokenSpaceGuid + TokenNumber". The platform token number is
> generated by
> +# build tool in autogen.h and all of them are continual in a platform scope
> +# started from 1.(0 meaning invalid internal token number)
> +# With auto-generated "platform token number",
> PcdGet(PcdSampleDynamicPcd)
> +# in source code is translated to
> LibPcdGet(_PCD_TOKEN_PcdSampleDynamicPcd)
> +# in autogen.h.
> +# Notes: The mapping between pair of "tokenspace guid + token number"
> and
> +# "internal token number" need build tool establish, so "platform token
> number"
> +# mechanism is not suitable for binary module which use DynamicEx type
> PCD.
> +# To access a dynamicEx type PCD, pair of "token space guid/token
> number" all need
> +# to be specificed for PcdSet/PcdGet accessing macro.
> +#
> +# Platform Token Number is started from 1, and inceased continuous.
> From whole
> +# platform scope, there are two zones: PEI Zone and DXE Zone
> +# | Platform Token Number
> +# ----------|----------------------------------------------------------------
> +# PEI Zone: | 1 ~ PEI_LOCAL_TOKEN_NUMBER
> +# DXE Zone: | (PEI_LOCAL_TOKEN_NUMBER + 1) ~
> (PEI_LOCAL_TOKEN_NUMBER + DXE_LOCAL_TOKEN_NUMBER)
> +#
> +# 3.2.3 Local Token Number
> +# To fast searching a PCD entry in PCD database, PCD driver translate
> +# platform token number to local token number via a mapping table.
> +# For binary DynamicEx type PCD, there is a another mapping table to
> translate
> +# "token space guid + token number" to local token number directly.
> +# Local token number is identifier for all internal interface in PCD PEI/DXE
> +# driver.
> +#
> +# A local token number is a 32-bit value in following meaning:
> +# 32 ------------- 28 ---------- 24 -------- 0
> +# | PCD type mask | Datum Type | Offset |
> +# +-----------------------------------------+
> +# where:
> +# PCd type mask: indicate Pcd type from following macro:
> +# PCD_TYPE_DATA
> +# PCD_TYPE_HII
> +# PCD_TYPE_VPD
> +# PCD_TYPE_STRING
> +# Datum Type : indicate PCD vaue type from following macro:
> +# PCD_DATUM_TYPE_POINTER
> +# PCD_DATUM_TYPE_UINT8
> +# PCD_DATUM_TYPE_UINT16
> +# PCD_DATUM_TYPE_UINT32
> +# PCD_DATUM_TYPE_UINT64
> +# Offset : indicate the related offset of PCD value in PCD database
> array.
> +# Based on local token number, PCD driver could fast determine PCD type,
> value
> +# type and get PCD entry from PCD database.
> +#
> +# 3.3 PCD Database binary file
> +# PCD Database binary file will be created at build time as the standalone
> binary image.
> +# To understand the binary image layout, PCD Database C structure is still
> generated
> +# as comments by build tools in PCD driver's autogen.h/
> +# autogen.c file. In generated C structure, following information is stored:
> +# - ExMapTable: This table is used translate a binary dynamicex type PCD's
> +# "tokenguid + token" to local token number.
> +# - LocalTokenNumberTable:
> +# This table stores all local token number in array, use "Internal
> +# token number" as array index to get PCD entry's offset fastly.
> +# - SizeTable: This table stores the size information for all PCD entry.
> +# - GuidTable: This table stores guid value for DynamicEx's token space,
> +# HII type PCD's variable GUID.
> +# - SkuIdTable: TBD
> +# - SystemSkuId: TBD
> +# - PCD value structure:
> +# Every PCD has a value record in PCD database. For different
> +# datum type PCD has different record structure which will be
> +# introduced in 3.3.1
> +#
> +# In a PCD database structure, there are two major area: Init and UnInit.
> +# Init area is use stored above PCD internal structure such as ExMapTable,
> +# LocalTokenNumberTable etc and the (default) value of PCD which has
> default
> +# value specified in platform DSC file.
> +# Unint area is used stored the value of PCD which has no default value in
> +# platform DSC file, the value of NULL, 0 specified in platform DSC file can
> +# be seemed as "no default value".
> +#
> +# 3.3.1 Simple Sample PCD Database C Structure
> +# A general sample of PCD database structue is as follows:
> +# typedef struct _PCD_DATABASE {
> +# typedef struct _PCD_DATABASE_INIT {
> +# //===== Following is PCD database internal maintain structures
> +# DYNAMICEX_MAPPING ExMapTable[PEI_EXMAPPING_TABLE_SIZE];
> +# UINT32
> LocalTokenNumberTable[PEI_LOCAL_TOKEN_NUMBER_TABLE_SIZE];
> +# GUID GuidTable[PEI_GUID_TABLE_SIZE];
> +# SIZE_INFO SizeTable[PEI_SIZE_TABLE_SIZE];
> +# UINT8 SkuIdTable[PEI_SKUID_TABLE_SIZE];
> +# SKU_ID SystemSkuId;
> +#
> +# //===== Following is value structure for PCD with default value
> +# ....
> +# ....
> +# ....
> +# } Init;
> +# typedef struct _PCD_DATABSE_UNINIT {
> +# //==== Following is value structure for PCD without default value
> +# ....
> +# ....
> +# } UnInit;
> +# }
> +#
> +# 3.3.2 PCD value structure in PCD database C structure
> +# The value's structure is generated by build tool in PCD database C
> structure.
> +# The PCDs in different datum type has different value structure.
> +#
> +# 3.3.2.1 UINT8/UINT16/UINT32/UINT64 datum type PCD
> +# The C structure for these datum type PCD is just a
> UINT8/UINT16/UINT32/UINT64
> +# data member in PCD database, For example:
> +# UINT16
> PcdHardwareErrorRecordLevel_d3705011_bc19_4af7_be16_f68030378c15_
> VariableDefault_0;
> +# Above structure is generated by build tool, the member name is
> "PcdCName_Guidvalue"
> +# Member type is UINT16 according to PcdHardwareErrorRecordLevel
> declaration
> +# in DEC file.
> +#
> +# 3.3.2.2 VOID* datum type PCD
> +# The value of VOID* datum type PCD is a UINT8/UINT16 array in PCD
> database.
> +#
> +# 3.3.2.2.1 VOID* - string type
> +# If the default value for VOID* datum type PCD like L"xxx", the PCD is
> +# used for unicode string, and C structure of this datum type PCD is
> +# UINT16 string array in PCD database, for example:
> +# UINT16 StringTable[29];
> +# The number of 29 in above sample is max size of a unicode string.
> +#
> +# If the default value for VOID* datum type PCD like "xxx", the PCD is
> +# used for ascii string, and C structure of this datum type PCD is
> +# UINT8 string array in PCD database, for example:
> +# UINT8 StringTable[20];
> +# The number of 20 in above sample is max size of a ascii string.
> +#
> +# 3.3.2.2.2 VOID* - byte array
> +# If the default value of VOID* datum type PCD like {'0x29', '0x01',
> '0xf2'}
> +# the PCD is used for byte array. The generated structrue is same as
> +# above ascii string table,
> +# UINT8 StringTable[13];
> +# The number of 13 in above sample is max size of byte array.
> +#
> +# 3.3.3 Some utility structures in PCD Database
> +# 3.3.3.1 GuidTable
> +# GuidTable array is used to store all related GUID value in PCD database:
> +# - Variable GUID for HII type PCD
> +# - Token space GUID for dynamicex type PCD
> +#
> +# Copyright (c) 2006 - 2018, Intel Corporation. All rights reserved.<BR>
> +#
> +# SPDX-License-Identifier: BSD-2-Clause-Patent
> +#
> +#
> +##
> +
> +[Defines]
> + INF_VERSION = 0x00010005
> + BASE_NAME = PcdPeim
> + MODULE_UNI_FILE = PcdPeim.uni
> + FILE_GUID = 9B3ADA4F-AE56-4c24-8DEA-F03B7558AE50
> + MODULE_TYPE = PEIM
> + VERSION_STRING = 4.0
> + PCD_IS_DRIVER = PEI_PCD_DRIVER
> + ENTRY_POINT = PcdPeimInit
> +
> +#
> +# The following information is for reference only and not required by the build
> tools.
> +#
> +# VALID_ARCHITECTURES = IA32 X64 EBC (EBC is for build only)
> +#
> +
> +[Sources]
> + Service.c
> + Service.h
> + Pcd.c
> +
> +[Packages]
> + MdePkg/MdePkg.dec
> + MdeModulePkg/MdeModulePkg.dec
> + ChachaniBoardPkg/Project.dec
> + Override/edk2/Fsp2WrapperPkg/Fsp2WrapperPkg.dec
> +
> +[LibraryClasses]
> + BaseMemoryLib
> + PcdLib
> + PeiServicesLib
> + HobLib
> + BaseLib
> + PeimEntryPoint
> + DebugLib
> + MemoryAllocationLib
> +
> +[Guids]
> + ## PRODUCES ## HOB
> + ## SOMETIMES_CONSUMES ## HOB
> + gPcdDataBaseHobGuid
> + gPcdDataBaseSignatureGuid ## CONSUMES ## GUID # PCD
> database signature GUID.
> + gEfiMdeModulePkgTokenSpaceGuid ## SOMETIMES_CONSUMES ##
> GUID
> + gEfiAmdAgesaModulePkgTokenSpaceGuid
> + gEfiAmdAgesaPkgTokenSpaceGuid
> + gAmdCpmPkgTokenSpaceGuid
> + gAmdFspPkgGuid
> +
> +[Ppis]
> + gEfiPeiReadOnlyVariable2PpiGuid ## SOMETIMES_CONSUMES
> + gPcdPpiGuid ## PRODUCES
> + gEfiPeiPcdPpiGuid ## PRODUCES
> + gGetPcdInfoPpiGuid ## SOMETIMES_PRODUCES
> + gEfiGetPcdInfoPpiGuid ## SOMETIMES_PRODUCES
> + gEfiEndOfPeiSignalPpiGuid ## NOTIFY
> + gFspEfiPeiPcdPpiGuid ## SOMETIMES_PRODUCES
> + gFspEfiGetPcdInfoPpiGuid ## SOMETIMES_PRODUCES
> +
> +[FeaturePcd]
> + gEfiMdeModulePkgTokenSpaceGuid.PcdPeiFullPcdDatabaseEnable ##
> CONSUMES
> +
> +[Pcd]
> + gEfiMdeModulePkgTokenSpaceGuid.PcdVpdBaseAddress ##
> SOMETIMES_CONSUMES
> + gEfiMdeModulePkgTokenSpaceGuid.PcdVpdBaseAddress64 ##
> SOMETIMES_CONSUMES
> +
> gEfiMdeModulePkgTokenSpaceGuid.PcdMaxPeiPcdCallBackNumberPerPcdEntr
> y ## SOMETIMES_CONSUMES
> + gEfiMdeModulePkgTokenSpaceGuid.PcdNvStoreDefaultValueBuffer ##
> SOMETIMES_CONSUMES
> + gEfiMdeModulePkgTokenSpaceGuid.PcdSetNvStoreDefaultId ##
> CONSUMES
> + gIntelFsp2WrapperTokenSpaceGuid.PcdFspModeSelection
> +
> +[Depex]
> + TRUE
> +
> +[UserExtensions.TianoCore."ExtraFiles"]
> + PcdPeimExtra.uni
> diff --git
> a/Platform/AMD/VanGoghBoard/Override/edk2/MdePkg/Include/Register/I
> ntel/SmramSaveStateMap.h
> b/Platform/AMD/VanGoghBoard/Override/edk2/MdePkg/Include/Register/I
> ntel/SmramSaveStateMap.h
> new file mode 100644
> index 0000000000..05487d75e9
> --- /dev/null
> +++
> b/Platform/AMD/VanGoghBoard/Override/edk2/MdePkg/Include/Register/I
> ntel/SmramSaveStateMap.h
> @@ -0,0 +1,324 @@
> +/** @file
> +SMRAM Save State Map Definitions.
> +
> +SMRAM Save State Map definitions based on contents of the
> +Intel(R) 64 and IA-32 Architectures Software Developer's Manual
> + Volume 3C, Section 34.4 SMRAM
> + Volume 3C, Section 34.5 SMI Handler Execution Environment
> + Volume 3C, Section 34.7 Managing Synchronous and Asynchronous SMIs
> +
> +Copyright (C) 2024 Advanced Micro Devices, Inc. All rights reserved.<BR>
> +Copyright (c) 2015 - 2019, Intel Corporation. All rights reserved.<BR>
> +SPDX-License-Identifier: BSD-2-Clause-Patent
> +
> +**/
> +
> +#ifndef INTEL_SMRAM_SAVE_STATE_MAP_H____
> +#define INTEL_SMRAM_SAVE_STATE_MAP_H____
> +#define AMD_CPU 1
> +///
> +/// Default SMBASE address
> +///
> +#define SMM_DEFAULT_SMBASE 0x30000
> +
> +///
> +/// Offset of SMM handler from SMBASE
> +///
> +#define SMM_HANDLER_OFFSET 0x8000
> +
> +///
> +/// Offset of SMRAM Save State Map from SMBASE
> +///
> +#if AMD_CPU
> +#define SMRAM_SAVE_STATE_MAP_OFFSET 0xfe00
> +#else
> +#define SMRAM_SAVE_STATE_MAP_OFFSET 0xfc00
> +#endif
> +
> +#pragma pack (1)
> +
> +#if AMD_CPU
> +///
> +/// CPU save-state strcuture for AMD64 Architecture
> +///
> +typedef struct {
> + UINT8 Reserved[0xF8]; // FE00h - FEF7h , Reserved, 248 Bytes, --
> + UINT32 SMBASE; // FEF8h, SMBASE, Doubleword, Read/Write
> + UINT32 SMMRevId; // FEFCh, SMM-Revision identifier, Doubleword,
> Read-Only
> + UINT16 IORestart; // FF00h, I/O Instruction Restart, Word, Read/Write
> + UINT16 AutoHALTRestart; // FF02h, Auti-Halt Restart, Word, Read/Write
> + UINT8 Reserved1[0x84]; // FF04h - FF87h, Reserved, 132 Bytes --
> + UINT32 GdtBase; // FF88h, GDT Base, Doubleword, Read-Only
> + UINT64 Reserved2; // FF8Ch - FF93h, Quadword, --
> + UINT32 IDTBase; // FF94h, IDT Base, Doubleword, Read-Only
> + UINT8 Reserved3[0x10]; // FF98 - FFA7h, Reserved, 16Bytes, --
> + UINT32 _ES; // FFA8h, ES, Doubleword, Read-Only
> + UINT32 _CS; // FFACh, CS, Doubleword, Read-Only
> + UINT32 _SS; // FFB0h, SS, Doubleword, Read-Only
> + UINT32 _DS; // FFB4h, DS, Doubleword, Read-Only
> + UINT32 _FS; // FFB8h, FS, Doubleword, Read-Only
> + UINT32 _GS; // FFBCh, GS, Doubleword, Read-Only
> + UINT32 LDTBase; // FFC0h, LDT Base, Doubleword, Read-Only
> + UINT32 _TR; // FFC4h, TR, Doubleword, Read-Only
> + UINT32 _DR7; // FFC8h, DR7, Doubleword, Read-Only
> + UINT32 _DR6; // FFCCh, DR6, Doubleword, Read-Only
> + UINT32 _EAX; // FFD0h, EAX, Doubleword, Read/Write
> + UINT32 _ECX; // FFD4h, ECX, Doubleword, Read/Write
> + UINT32 _EDX; // FFD8h, EDX, Doubleword, Read/Write
> + UINT32 _EBX; // FFDCh, EBX, Doubleword, Read/Write
> + UINT32 _ESP; // FFE0h, ESP, Doubleword, Read/Write
> + UINT32 _EBP; // FFE4h, EBP, Doubleword, Read/Write
> + UINT32 _ESI; // FFE8h, ESI, Doubleword, Read/Write
> + UINT32 _EDI; // FFECh, EDI, Doubleword, Read/Write
> + UINT32 _EIP; // FFF0h, EIP, Doubleword, Read/Write
> + UINT32 _EFLAGS; // FFF4h, EFLAGS, Doubleword, Read/Write
> + UINT32 _CR3; // FFF8h, CR3, Doubleword, Read/Write
> + UINT32 _CR0; // FFFCh, CR0, Doubleword, Read/Write
> +} SMRAM_SAVE_STATE_MAP32;
> +
> +typedef struct {
> + UINT16 _ES; // FE00h, ES Selector, Word, Read-Only
> + UINT16 ESAttributes; // FE02h, ES Attributes, Word, Read-Only
> + UINT32 ESLimit; // FE04h, ES Limit, Doubleword, Read-Only
> + UINT64 ESBase; // FE08h, ES Base, Quadword, Read-Only
> + UINT16 _CS; // FE10h, CS Selector, Word, Read-Only
> + UINT16 CSAttributes; // FE12h, CS Attributes, Word, Read-Only
> + UINT32 CSLimit; // FE14h, CS Limit, Doubleword, Read-Only
> + UINT64 CSBase; // FE18h, CS Base, Quadword, Read-Only
> + UINT16 _SS; // FE20h, SS Selector, Word, Read-Only
> + UINT16 SSAttributes; // FE22h, SS Attributes, Word, Read-Only
> + UINT32 SSLimit; // FE24h, SS Limit, Doubleword, Read-Only
> + UINT64 SSBase; // FE28h, SS Base, Quadword, Read-Only
> + UINT16 _DS; // FE30h, DS Selector, Word, Read-Only
> + UINT16 DSAttributes; // FE32h, DS Attributes, Word, Read-Only
> + UINT32 DSLimit; // FE34h, DS Limit, Doubleword, Read-Only
> + UINT64 DSBase; // FE38h, DS Base, Quadword, Read-Only
> + UINT16 _FS; // FE40h, FS Selector, Word, Read-Only
> + UINT16 FSAttributes; // FE42h, FS Attributes, Word, Read-Only
> + UINT32 FSLimit; // FE44h, FS Limit, Doubleword, Read-Only
> + UINT64 FSBase; // FE48h, FS Base, Quadword, Read-Only
> + UINT16 _GS; // FE50h, GS Selector, Word, Read-Only
> + UINT16 GSAttributes; // FE52h, GS Attributes, Word, Read-Only
> + UINT32 GSLimit; // FE54h, GS Limit, Doubleword, Read-Only
> + UINT64 GSBase; // FE58h, GS Base, Quadword, Read-Only
> + UINT8 Reserved1[4]; // FE60h - FE63h, GDTR Reserved, 4 Bytes, Read-
> Only
> + UINT16 GdtrLimit; // FE64h, GDTR Limit, Word, Read-Only
> + UINT8 Reserved2[2]; // FE66h - FE67h, Reserved, 2 Bytes, Read-Only
> + // UINT64 GDTR_Base; // FE68h, GDTR Base, Quadword, Read-Only
> + UINT32 GdtrBaseLoDword;
> + UINT32 GdtrBaseHiDword;
> + UINT16 LdtrSelector; // FE70h, LDTR Selector, Word, Read-Only
> + UINT16 LdtrAttributes; // FE72h, LDTR Attributes, Word, Read-Only
> + UINT32 LdtrLimit; // FE74h, LDTR Limit, Doubleword, Read-Only
> + // UINT64 LDTR_Base; // FE78h, LDTR Base, Quadword, Read-Only
> + UINT32 LdtrBaseLoDword;
> + UINT32 LdtrBaseHiDword;
> + UINT8 Reserved3[4]; // FE80h - FE83h (PID: 24593 (PUB) 3.20 p.279
> has a technical errors), IDTR Reserved, 4 Bytes, Read-Only
> + UINT16 IdtrLimit; // FE84h, IDTR Limit, Word, Read-Only
> + UINT8 Reserved4[2]; // FE86h - FE87h (PID: 24593 (PUB) 3.20 p.279
> has a technical errors), IDTR Reserved, 2 Bytes, Read-Only
> + // UINT64 IDTR_Base; // FE88h, IDTR Base, Quadword, Read-Only
> + UINT32 IdtrBaseLoDword;
> + UINT32 IdtrBaseHiDword;
> + UINT16 TrSelector; // FE90h, TR Selector, Word, Read-Only
> + UINT16 TrAttributes; // FE92h, TR Attributes, Word, Read-Only
> + UINT32 TrLimit; // FE94h, TR Limit, Doubleword, Read-Only
> + UINT64 TrBase; // FE98h, TR Base, Quadword, Read-Only
> + UINT64 IO_RESTART_RIP; // FEA0h, I/O Instruction Restart RIP,
> Quadword, Read-Only
> + UINT64 IO_RESTART_RCX; // FEA8h, I/O Instruction Restart RCX,
> Quadword, Read-Only
> + UINT64 IO_RESTART_RSI; // FEB0h, I/O Instruction Restart RSI,
> Quadword, Read-Only
> + UINT64 IO_RESTART_RDI; // FEB8h, I/O Instruction Restart RDI,
> Quadword, Read-Only
> + UINT32 SMM_IO_TRAP; // FEC0h, I/O Instruction Restart Dword
> SMMFEC0 [SMM IO Trap Offset], Read-Only
> + UINT32 LocalSmiStatus; // FEC4h, SMMFEC4 [Local SMI Status],
> Doubleword, Read-Only
> + UINT8 SMM_IO_RESTART; // FEC8h, SMMFEC8 [SMM IO Restart Byte],
> Byte, Read/Write
> + UINT8 AutoHALTRestart; // FEC9h, SMMFEC9 [Auto Halt Restart
> Offset], Byte, Read/Write
> + UINT8 NMI_MASK; // FECAh, SMMFECA [NMI Mask], Byte,
> Read/Write
> + UINT8 Reserved5[5]; // FECBh - FECFh, Reserved, 5 Bytes, --
> + UINT64 EFER; // FED0h, EFER, Quadword, Read-Only
> + UINT64 SMM_SVM_State; // FED8h, SMMFED8 [SMM SVM State],
> Read-Only
> + UINT64 Guest_VMCB_PHY_ADDR; // FEE0h, Guest VMCB physical
> address, Read-Only
> + UINT64 SVM_Virtual_INT_CTRL; // FEE8h, SVM Virtual Interrupt Control,
> Read-Only
> + UINT8 Reserved6[12]; // FEF0h - FEFBh, Reserved, 12 Bytes (PID:
> 42300 Family 15h BKDG (NDA) 1.11 p.49 has a technial error), --
> + UINT32 SMMRevId; // FEFCh, SMMFEFC [SMM-Revision-
> Indentifier], Doubleword, Read/Write
> + UINT32 SMBASE; // FF00h, SMMFF00 [SMM Base Address
> (SMM_BASE)], Read/Write
> + UINT8 Reserved7[28]; // FF04h, Reserved, 24 Bytes, --
> + UINT64 GuestPAT; // FF20h, Guest PAT, Quadword, Read-Only
> + UINT64 HostEFER; // FF28h, Host EFER, Quadword, Read-Only
> + UINT64 HostCR4; // FF30h, Host CR4, Quadword, Read-Only
> + UINT64 NestedCR3; // FF38h, Nested CR3, Quadword, Read-Only
> + UINT64 HostCR0; // FF40h, Host CR0, Quadword, Read-Only
> + UINT64 _CR4; // FF48h, CR4, Quadword, Read-Only
> + UINT64 _CR3; // FF50h, CR3, Quadword, Read-Only
> + UINT64 _CR0; // FF58h, CR0, Quadword, Read-Only
> + UINT64 _DR7; // FF60h, DR7, Quadword, Read-Only
> + UINT64 _DR6; // FF68h, DR6, Quadword, Read-Only
> + UINT64 _RFLAGS; // FF70h, RFLAGS, Quadword, Read/Write
> + UINT64 _RIP; // FF78h, RIP, Quadword, Read/Write
> + UINT64 _R15; // FF80h, R15, Quadword, Read/Write
> + UINT64 _R14; // FF88h, R14, Quadword, Read/Write
> + UINT64 _R13; // FF90h, R13, Quadword, Read/Write
> + UINT64 _R12; // FF98h, R12, Quadword, Read/Write
> + UINT64 _R11; // FFA0h, R11, Quadword, Read/Write
> + UINT64 _R10; // FFA8h, R10, Quadword, Read/Write
> + UINT64 _R9; // FFB0h, R9, Quadword, Read/Write
> + UINT64 _R8; // FFB8, R8, Quadword, Read/Write
> + UINT64 _RDI; // FFC0h, RDI, Quadword, Read/Write
> + UINT64 _RSI; // FFD8h, RSI, Quadword, Read/Write
> + UINT64 _RBP; // FFD0h, RBP, Quadword, Read/Write
> + UINT64 _RSP; // FFE0h, RSP, Quadword, Read/Write
> + UINT64 _RBX; // FFE0h, RBX, Quadword, Read/Write
> + UINT64 _RDX; // FFE8h, RDX, Quadword, Read/Write
> + UINT64 _RCX; // FFF0h, RCX, Quadword, Read/Write
> + UINT64 _RAX; // FFF8h, RAX, Quadword, Read/Write
> +} SMRAM_SAVE_STATE_MAP64;
> +#else
> +///
> +/// 32-bit SMRAM Save State Map
> +///
> +typedef struct {
> + UINT8 Reserved[0x200]; // 7c00h
> + // Padded an extra 0x200 bytes so 32-bit and 64-bit
> + // SMRAM Save State Maps are the same size
> + UINT8 Reserved1[0xf8]; // 7e00h
> + UINT32 SMBASE; // 7ef8h
> + UINT32 SMMRevId; // 7efch
> + UINT16 IORestart; // 7f00h
> + UINT16 AutoHALTRestart; // 7f02h
> + UINT8 Reserved2[0x9C]; // 7f08h
> + UINT32 IOMemAddr; // 7fa0h
> + UINT32 IOMisc; // 7fa4h
> + UINT32 _ES; // 7fa8h
> + UINT32 _CS; // 7fach
> + UINT32 _SS; // 7fb0h
> + UINT32 _DS; // 7fb4h
> + UINT32 _FS; // 7fb8h
> + UINT32 _GS; // 7fbch
> + UINT32 Reserved3; // 7fc0h
> + UINT32 _TR; // 7fc4h
> + UINT32 _DR7; // 7fc8h
> + UINT32 _DR6; // 7fcch
> + UINT32 _EAX; // 7fd0h
> + UINT32 _ECX; // 7fd4h
> + UINT32 _EDX; // 7fd8h
> + UINT32 _EBX; // 7fdch
> + UINT32 _ESP; // 7fe0h
> + UINT32 _EBP; // 7fe4h
> + UINT32 _ESI; // 7fe8h
> + UINT32 _EDI; // 7fech
> + UINT32 _EIP; // 7ff0h
> + UINT32 _EFLAGS; // 7ff4h
> + UINT32 _CR3; // 7ff8h
> + UINT32 _CR0; // 7ffch
> +} SMRAM_SAVE_STATE_MAP32;
> +
> +///
> +/// 64-bit SMRAM Save State Map
> +///
> +typedef struct {
> + UINT8 Reserved1[0x1d0]; // 7c00h
> + UINT32 GdtBaseHiDword; // 7dd0h
> + UINT32 LdtBaseHiDword; // 7dd4h
> + UINT32 IdtBaseHiDword; // 7dd8h
> + UINT8 Reserved2[0xc]; // 7ddch
> + UINT64 IO_EIP; // 7de8h
> + UINT8 Reserved3[0x50]; // 7df0h
> + UINT32 _CR4; // 7e40h
> + UINT8 Reserved4[0x48]; // 7e44h
> + UINT32 GdtBaseLoDword; // 7e8ch
> + UINT32 Reserved5; // 7e90h
> + UINT32 IdtBaseLoDword; // 7e94h
> + UINT32 Reserved6; // 7e98h
> + UINT32 LdtBaseLoDword; // 7e9ch
> + UINT8 Reserved7[0x38]; // 7ea0h
> + UINT64 EptVmxControl; // 7ed8h
> + UINT32 EnEptVmxControl; // 7ee0h
> + UINT8 Reserved8[0x14]; // 7ee4h
> + UINT32 SMBASE; // 7ef8h
> + UINT32 SMMRevId; // 7efch
> + UINT16 IORestart; // 7f00h
> + UINT16 AutoHALTRestart; // 7f02h
> + UINT8 Reserved9[0x18]; // 7f04h
> + UINT64 _R15; // 7f1ch
> + UINT64 _R14;
> + UINT64 _R13;
> + UINT64 _R12;
> + UINT64 _R11;
> + UINT64 _R10;
> + UINT64 _R9;
> + UINT64 _R8;
> + UINT64 _RAX; // 7f5ch
> + UINT64 _RCX;
> + UINT64 _RDX;
> + UINT64 _RBX;
> + UINT64 _RSP;
> + UINT64 _RBP;
> + UINT64 _RSI;
> + UINT64 _RDI;
> + UINT64 IOMemAddr; // 7f9ch
> + UINT32 IOMisc; // 7fa4h
> + UINT32 _ES; // 7fa8h
> + UINT32 _CS;
> + UINT32 _SS;
> + UINT32 _DS;
> + UINT32 _FS;
> + UINT32 _GS;
> + UINT32 _LDTR; // 7fc0h
> + UINT32 _TR;
> + UINT64 _DR7; // 7fc8h
> + UINT64 _DR6;
> + UINT64 _RIP; // 7fd8h
> + UINT64 IA32_EFER; // 7fe0h
> + UINT64 _RFLAGS; // 7fe8h
> + UINT64 _CR3; // 7ff0h
> + UINT64 _CR0; // 7ff8h
> +} SMRAM_SAVE_STATE_MAP64;
> +#endif
> +
> +///
> +/// Union of 32-bit and 64-bit SMRAM Save State Maps
> +///
> +typedef union {
> + SMRAM_SAVE_STATE_MAP32 x86;
> + SMRAM_SAVE_STATE_MAP64 x64;
> +} SMRAM_SAVE_STATE_MAP;
> +
> +///
> +/// Minimum SMM Revision ID that supports IOMisc field in SMRAM Save
> State Map
> +///
> +#define SMRAM_SAVE_STATE_MIN_REV_ID_IOMISC 0x30004
> +
> +///
> +/// SMRAM Save State Map IOMisc I/O Length Values
> +///
> +#define SMM_IO_LENGTH_BYTE 0x01
> +#define SMM_IO_LENGTH_WORD 0x02
> +#define SMM_IO_LENGTH_DWORD 0x04
> +
> +///
> +/// SMRAM Save State Map IOMisc I/O Instruction Type Values
> +///
> +#define SMM_IO_TYPE_IN_IMMEDIATE 0x9
> +#define SMM_IO_TYPE_IN_DX 0x1
> +#define SMM_IO_TYPE_OUT_IMMEDIATE 0x8
> +#define SMM_IO_TYPE_OUT_DX 0x0
> +#define SMM_IO_TYPE_INS 0x3
> +#define SMM_IO_TYPE_OUTS 0x2
> +#define SMM_IO_TYPE_REP_INS 0x7
> +#define SMM_IO_TYPE_REP_OUTS 0x6
> +
> +///
> +/// SMRAM Save State Map IOMisc structure
> +///
> +typedef union {
> + struct {
> + UINT32 SmiFlag : 1;
> + UINT32 Length : 3;
> + UINT32 Type : 4;
> + UINT32 Reserved1 : 8;
> + UINT32 Port : 16;
> + } Bits;
> + UINT32 Uint32;
> +} SMRAM_SAVE_STATE_IOMISC;
> +
> +#pragma pack ()
> +
> +#endif
> --
> 2.31.1
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