1de04b4f83
Change the behavior for PcdSET for Variable_Enabled Pcd entry. If a Variable does not exist, we will only save the value to a volatile space. We save it to variable ONLY when the variable exist. Fix a few bugs in Pcd Build tool when generated Pcd database for Pcd entry with Unicode String type. Support PcdSet to return MaxSize if the input SizeOfBuffer is greater than the Max Size declared in FPD file. Add SetValueWorker and GetValueWoker for each PcdSET and PcdGET function to reduce code size. Sync function prototype definition for PCD_PPI_SET_POINTER, PCD_PPI_SET_EX_POINTER, PCD_PROTOCOL_SET_POINTER and PCD_PROTOCOL_SET_EX_POINTER with PCD arch spec 0.52. Add ASSERTION in LibPcdSetPtr. git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@789 6f19259b-4bc3-4df7-8a09-765794883524
965 lines
22 KiB
C
965 lines
22 KiB
C
/** @file
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Implementation of PcdLib class library for DXE phase.
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Copyright (c) 2006, Intel Corporation<BR>
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All rights reserved. This program and the accompanying materials
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are licensed and made available under the terms and conditions of the BSD License
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which accompanies this distribution. The full text of the license may be found at
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http://opensource.org/licenses/bsd-license.php
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THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
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WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
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Module Name: DxePcdLib.c
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**/
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static PCD_PROTOCOL *mPcd;
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/**
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The constructor function caches the PCD_PROTOCOL pointer.
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@param[in] ImageHandle The firmware allocated handle for the EFI image.
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@param[in] SystemTable A pointer to the EFI System Table.
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@retval EFI_SUCCESS The constructor always return EFI_SUCCESS.
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**/
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EFI_STATUS
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EFIAPI
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PcdLibConstructor (
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IN EFI_HANDLE ImageHandle,
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IN EFI_SYSTEM_TABLE *SystemTable
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)
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{
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EFI_STATUS Status;
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Status = gBS->LocateProtocol (&gPcdProtocolGuid, NULL, (VOID **)&mPcd);
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ASSERT_EFI_ERROR (Status);
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return EFI_SUCCESS;
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}
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/**
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Sets the current SKU in the PCD database to the value specified by SkuId. SkuId is returned.
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@param[in] SkuId The SKU value that will be used when the PCD service will retrieve and
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set values associated with a PCD token.
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@retval SKU_ID Return the SKU ID that just be set.
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**/
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UINTN
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EFIAPI
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LibPcdSetSku (
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IN UINTN SkuId
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)
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{
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ASSERT (SkuId < 0x100);
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mPcd->SetSku (SkuId);
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return SkuId;
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}
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/**
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Returns the 8-bit value for the token specified by TokenNumber.
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@param[in] The PCD token number to retrieve a current value for.
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@retval UINT8 Returns the 8-bit value for the token specified by TokenNumber.
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**/
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UINT8
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EFIAPI
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LibPcdGet8 (
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IN UINTN TokenNumber
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)
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{
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return mPcd->Get8 (TokenNumber);
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}
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/**
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Returns the 16-bit value for the token specified by TokenNumber.
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@param[in] The PCD token number to retrieve a current value for.
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@retval UINT16 Returns the 16-bit value for the token specified by TokenNumber.
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**/
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UINT16
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EFIAPI
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LibPcdGet16 (
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IN UINTN TokenNumber
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)
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{
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return mPcd->Get16 (TokenNumber);
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}
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/**
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Returns the 32-bit value for the token specified by TokenNumber.
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@param[in] TokenNumber The PCD token number to retrieve a current value for.
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@retval UINT32 Returns the 32-bit value for the token specified by TokenNumber.
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**/
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UINT32
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EFIAPI
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LibPcdGet32 (
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IN UINTN TokenNumber
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)
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{
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return mPcd->Get32 (TokenNumber);
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}
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/**
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Returns the 64-bit value for the token specified by TokenNumber.
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@param[in] TokenNumber The PCD token number to retrieve a current value for.
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@retval UINT64 Returns the 64-bit value for the token specified by TokenNumber.
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**/
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UINT64
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EFIAPI
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LibPcdGet64 (
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IN UINTN TokenNumber
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)
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{
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return mPcd->Get64 (TokenNumber);
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}
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/**
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Returns the pointer to the buffer of the token specified by TokenNumber.
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@param[in] TokenNumber The PCD token number to retrieve a current value for.
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@retval VOID* Returns the pointer to the token specified by TokenNumber.
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**/
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VOID *
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EFIAPI
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LibPcdGetPtr (
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IN UINTN TokenNumber
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)
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{
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return mPcd->GetPtr (TokenNumber);
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}
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/**
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Returns the Boolean value of the token specified by TokenNumber.
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@param[in] TokenNumber The PCD token number to retrieve a current value for.
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@retval BOOLEAN Returns the Boolean value of the token specified by TokenNumber.
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**/
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BOOLEAN
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EFIAPI
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LibPcdGetBool (
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IN UINTN TokenNumber
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)
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{
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return mPcd->GetBool (TokenNumber);
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}
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/**
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Returns the size of the token specified by TokenNumber.
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@param[in] TokenNumber The PCD token number to retrieve a current value for.
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@retval UINTN Returns the size of the token specified by TokenNumber.
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**/
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UINTN
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EFIAPI
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LibPcdGetSize (
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IN UINTN TokenNumber
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)
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{
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return mPcd->GetSize (TokenNumber);
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}
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/**
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Returns the 8-bit value for the token specified by TokenNumber and Guid.
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If Guid is NULL, then ASSERT().
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@param[in] Guid Pointer to a 128-bit unique value that designates
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which namespace to retrieve a value from.
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@param[in] TokenNumber The PCD token number to retrieve a current value for.
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@retval UINT8 Return the UINT8.
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**/
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UINT8
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EFIAPI
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LibPcdGetEx8 (
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IN CONST GUID *Guid,
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IN UINTN TokenNumber
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)
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{
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ASSERT (Guid != NULL);
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return mPcd->Get8Ex (Guid, TokenNumber);
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}
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/**
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Returns the 16-bit value for the token specified by TokenNumber and Guid.
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If Guid is NULL, then ASSERT().
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@param[in] Guid Pointer to a 128-bit unique value that designates
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which namespace to retrieve a value from.
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@param[in] TokenNumber The PCD token number to retrieve a current value for.
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@retval UINT16 Return the UINT16.
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**/
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UINT16
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EFIAPI
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LibPcdGetEx16 (
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IN CONST GUID *Guid,
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IN UINTN TokenNumber
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)
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{
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ASSERT (Guid != NULL);
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return mPcd->Get16Ex (Guid, TokenNumber);
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}
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/**
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Returns the 32-bit value for the token specified by TokenNumber and Guid.
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If Guid is NULL, then ASSERT().
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@param[in] Guid Pointer to a 128-bit unique value that designates
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which namespace to retrieve a value from.
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@param[in] TokenNumber The PCD token number to retrieve a current value for.
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@retval UINT32 Return the UINT32.
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**/
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UINT32
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EFIAPI
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LibPcdGetEx32 (
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IN CONST GUID *Guid,
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IN UINTN TokenNumber
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)
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{
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ASSERT (Guid != NULL);
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return mPcd->Get32Ex (Guid, TokenNumber);
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}
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/**
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Returns the 64-bit value for the token specified by TokenNumber and Guid.
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If Guid is NULL, then ASSERT().
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@param[in] Guid Pointer to a 128-bit unique value that designates
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which namespace to retrieve a value from.
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@param[in] TokenNumber The PCD token number to retrieve a current value for.
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@retval UINT64 Return the UINT64.
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**/
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UINT64
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EFIAPI
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LibPcdGetEx64 (
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IN CONST GUID *Guid,
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IN UINTN TokenNumber
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)
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{
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ASSERT (Guid != NULL);
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return mPcd->Get64Ex (Guid, TokenNumber);
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}
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/**
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Returns the pointer to the token specified by TokenNumber and Guid.
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If Guid is NULL, then ASSERT().
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@param[in] Guid Pointer to a 128-bit unique value that designates
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which namespace to retrieve a value from.
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@param[in] TokenNumber The PCD token number to retrieve a current value for.
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@retval VOID* Return the VOID* pointer.
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**/
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VOID *
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EFIAPI
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LibPcdGetExPtr (
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IN CONST GUID *Guid,
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IN UINTN TokenNumber
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)
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{
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ASSERT (Guid != NULL);
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return mPcd->GetPtrEx (Guid, TokenNumber);
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}
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/**
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Returns the Boolean value of the token specified by TokenNumber and Guid.
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If Guid is NULL, then ASSERT().
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@param[in] Guid Pointer to a 128-bit unique value that designates
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which namespace to retrieve a value from.
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@param[in] TokenNumber The PCD token number to retrieve a current value for.
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@retval BOOLEAN Return the BOOLEAN.
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**/
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BOOLEAN
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EFIAPI
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LibPcdGetExBool (
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IN CONST GUID *Guid,
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IN UINTN TokenNumber
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)
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{
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ASSERT (Guid != NULL);
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return mPcd->GetBoolEx (Guid, TokenNumber);
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}
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/**
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Returns the size of the token specified by TokenNumber and Guid.
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If Guid is NULL, then ASSERT().
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@param[in] Guid Pointer to a 128-bit unique value that designates
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which namespace to retrieve a value from.
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@param[in] TokenNumber The PCD token number to retrieve a current value for.
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@retval UINTN Return the size.
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**/
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UINTN
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EFIAPI
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LibPcdGetExSize (
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IN CONST GUID *Guid,
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IN UINTN TokenNumber
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)
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{
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ASSERT (Guid != NULL);
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return mPcd->GetSizeEx (Guid, TokenNumber);
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}
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/**
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Sets the 8-bit value for the token specified by TokenNumber
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to the value specified by Value. Value is returned.
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@param[in] TokenNumber The PCD token number to set a current value for.
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@param[in] Value The 8-bit value to set.
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@retval UINT8 Return the value been set.
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**/
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UINT8
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EFIAPI
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LibPcdSet8 (
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IN UINTN TokenNumber,
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IN UINT8 Value
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)
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{
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EFI_STATUS Status;
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Status = mPcd->Set8 (TokenNumber, Value);
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ASSERT_EFI_ERROR (Status);
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return Value;
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}
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/**
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Sets the 16-bit value for the token specified by TokenNumber
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to the value specified by Value. Value is returned.
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@param[in] TokenNumber The PCD token number to set a current value for.
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@param[in] Value The 16-bit value to set.
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@retval UINT16 Return the value been set.
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**/
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UINT16
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EFIAPI
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LibPcdSet16 (
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IN UINTN TokenNumber,
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IN UINT16 Value
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)
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{
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EFI_STATUS Status;
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Status = mPcd->Set16 (TokenNumber, Value);
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ASSERT_EFI_ERROR (Status);
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return Value;
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}
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/**
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Sets the 32-bit value for the token specified by TokenNumber
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to the value specified by Value. Value is returned.
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@param[in] TokenNumber The PCD token number to set a current value for.
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@param[in] Value The 32-bit value to set.
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@retval UINT32 Return the value been set.
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**/
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UINT32
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EFIAPI
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LibPcdSet32 (
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IN UINTN TokenNumber,
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IN UINT32 Value
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)
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{
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EFI_STATUS Status;
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Status = mPcd->Set32 (TokenNumber, Value);
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ASSERT_EFI_ERROR (Status);
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return Value;
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}
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/**
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Sets the 64-bit value for the token specified by TokenNumber
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to the value specified by Value. Value is returned.
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@param[in] TokenNumber The PCD token number to set a current value for.
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@param[in] Value The 64-bit value to set.
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@retval UINT64 Return the value been set.
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**/
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UINT64
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EFIAPI
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LibPcdSet64 (
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IN UINTN TokenNumber,
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IN UINT64 Value
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)
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{
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EFI_STATUS Status;
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Status = mPcd->Set64 (TokenNumber, Value);
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ASSERT_EFI_ERROR (Status);
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return Value;
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}
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/**
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Sets a buffer for the token specified by TokenNumber to
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the value specified by Buffer and SizeOfValue. Buffer to
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be set is returned. The content of the buffer could be
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overwritten if a Callback on SET is registered with this
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TokenNumber.
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If SizeOfValue is greater than the maximum
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size support by TokenNumber, then set SizeOfValue to the
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maximum size supported by TokenNumber and return NULL to
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indicate that the set operation was not actually performed.
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If SizeOfValue > 0 and Buffer is NULL, then ASSERT().
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@param[in] TokenNumber The PCD token number to set a current value for.
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@param[in,out] SizeOfBuffer The size, in bytes, of Buffer.
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@param[in] Value A pointer to the buffer to set.
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@retval VOID* Return the pointer for the buffer been set.
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**/
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VOID *
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EFIAPI
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LibPcdSetPtr (
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IN UINTN TokenNumber,
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IN OUT UINTN *SizeOfBuffer,
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IN VOID *Buffer
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)
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{
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EFI_STATUS Status;
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ASSERT (SizeOfBuffer != NULL);
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if (*SizeOfBuffer > 0) {
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ASSERT (Buffer != NULL);
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}
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Status = mPcd->SetPtr (TokenNumber, SizeOfBuffer, Buffer);
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if (EFI_ERROR (Status)) {
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return NULL;
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}
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return Buffer;
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}
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/**
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Sets the Boolean value for the token specified by TokenNumber
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to the value specified by Value. Value is returned.
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@param[in] TokenNumber The PCD token number to set a current value for.
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@param[in] Value The boolean value to set.
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@retval BOOLEAN Return the value been set.
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**/
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BOOLEAN
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EFIAPI
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LibPcdSetBool (
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IN UINTN TokenNumber,
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IN BOOLEAN Value
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)
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{
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EFI_STATUS Status;
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Status = mPcd->SetBool (TokenNumber, Value);
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ASSERT_EFI_ERROR (Status);
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return Value;
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}
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|
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/**
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Sets the 8-bit value for the token specified by TokenNumber and
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Guid to the value specified by Value. Value is returned.
|
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If Guid is NULL, then ASSERT().
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|
|
|
@param[in] Guid Pointer to a 128-bit unique value that
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designates which namespace to set a value from.
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@param[in] TokenNumber The PCD token number to set a current value for.
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@param[in] Value The 8-bit value to set.
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@retval UINT8 Return the value been set.
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**/
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UINT8
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EFIAPI
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LibPcdSetEx8 (
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IN CONST GUID *Guid,
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IN UINTN TokenNumber,
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IN UINT8 Value
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)
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{
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EFI_STATUS Status;
|
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ASSERT (Guid != NULL);
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Status = mPcd->Set8Ex (Guid, TokenNumber, Value);
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ASSERT_EFI_ERROR (Status);
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return Value;
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}
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|
|
|
|
|
|
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/**
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|
Sets the 16-bit value for the token specified by TokenNumber and
|
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Guid to the value specified by Value. Value is returned.
|
|
If Guid is NULL, then ASSERT().
|
|
|
|
@param[in] Guid Pointer to a 128-bit unique value that
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|
designates which namespace to set a value from.
|
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@param[in] TokenNumber The PCD token number to set a current value for.
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@param[in] Value The 16-bit value to set.
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@retval UINT8 Return the value been set.
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**/
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UINT16
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EFIAPI
|
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LibPcdSetEx16 (
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IN CONST GUID *Guid,
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IN UINTN TokenNumber,
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IN UINT16 Value
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)
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{
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EFI_STATUS Status;
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|
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ASSERT (Guid != NULL);
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Status = mPcd->Set16Ex (Guid, TokenNumber, Value);
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ASSERT_EFI_ERROR (Status);
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return Value;
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}
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|
|
|
|
|
|
/**
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|
Sets the 32-bit value for the token specified by TokenNumber and
|
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Guid to the value specified by Value. Value is returned.
|
|
If Guid is NULL, then ASSERT().
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|
|
|
@param[in] Guid Pointer to a 128-bit unique value that
|
|
designates which namespace to set a value from.
|
|
@param[in] TokenNumber The PCD token number to set a current value for.
|
|
@param[in] Value The 32-bit value to set.
|
|
|
|
@retval UINT32 Return the value been set.
|
|
|
|
**/
|
|
UINT32
|
|
EFIAPI
|
|
LibPcdSetEx32 (
|
|
IN CONST GUID *Guid,
|
|
IN UINTN TokenNumber,
|
|
IN UINT32 Value
|
|
)
|
|
{
|
|
EFI_STATUS Status;
|
|
|
|
ASSERT (Guid != NULL);
|
|
|
|
Status = mPcd->Set32Ex (Guid, TokenNumber, Value);
|
|
|
|
ASSERT_EFI_ERROR (Status);
|
|
|
|
return Value;
|
|
}
|
|
|
|
|
|
|
|
/**
|
|
Sets the 64-bit value for the token specified by TokenNumber and
|
|
Guid to the value specified by Value. Value is returned.
|
|
If Guid is NULL, then ASSERT().
|
|
|
|
@param[in] Guid Pointer to a 128-bit unique value that
|
|
designates which namespace to set a value from.
|
|
@param[in] TokenNumber The PCD token number to set a current value for.
|
|
@param[in] Value The 64-bit value to set.
|
|
|
|
@retval UINT64 Return the value been set.
|
|
|
|
**/
|
|
UINT64
|
|
EFIAPI
|
|
LibPcdSetEx64 (
|
|
IN CONST GUID *Guid,
|
|
IN UINTN TokenNumber,
|
|
IN UINT64 Value
|
|
)
|
|
{
|
|
EFI_STATUS Status;
|
|
|
|
ASSERT (Guid != NULL);
|
|
|
|
Status = mPcd->Set64Ex (Guid, TokenNumber, Value);
|
|
|
|
ASSERT_EFI_ERROR (Status);
|
|
|
|
return Value;
|
|
}
|
|
|
|
|
|
|
|
/**
|
|
Sets a buffer for the token specified by TokenNumber to the value specified by
|
|
Buffer and SizeOfValue. Buffer is returned. If SizeOfValue is greater than
|
|
the maximum size support by TokenNumber, then set SizeOfValue to the maximum size
|
|
supported by TokenNumber and return NULL to indicate that the set operation
|
|
was not actually performed.
|
|
|
|
If SizeOfValue > 0 and Buffer is NULL, then ASSERT().
|
|
|
|
@param[in] Guid Pointer to a 128-bit unique value that
|
|
designates which namespace to set a value from.
|
|
@param[in] TokenNumber The PCD token number to set a current value for.
|
|
@param[in, out] SizeOfBuffer The size, in bytes, of Buffer.
|
|
@param[in] Buffer A pointer to the buffer to set.
|
|
|
|
@retval VOID * Return the pinter to the buffer been set.
|
|
|
|
**/
|
|
VOID *
|
|
EFIAPI
|
|
LibPcdSetExPtr (
|
|
IN CONST GUID *Guid,
|
|
IN UINTN TokenNumber,
|
|
IN OUT UINTN *SizeOfBuffer,
|
|
IN VOID *Buffer
|
|
)
|
|
{
|
|
EFI_STATUS Status;
|
|
|
|
ASSERT (Guid != NULL);
|
|
|
|
ASSERT (SizeOfBuffer != NULL);
|
|
|
|
if (*SizeOfBuffer > 0) {
|
|
ASSERT (Buffer != NULL);
|
|
}
|
|
|
|
Status = mPcd->SetPtrEx (Guid, TokenNumber, SizeOfBuffer, Buffer);
|
|
|
|
if (EFI_ERROR (Status)) {
|
|
return NULL;
|
|
}
|
|
|
|
return Buffer;
|
|
}
|
|
|
|
|
|
|
|
/**
|
|
Sets the Boolean value for the token specified by TokenNumber and
|
|
Guid to the value specified by Value. Value is returned.
|
|
If Guid is NULL, then ASSERT().
|
|
|
|
@param[in] Guid Pointer to a 128-bit unique value that
|
|
designates which namespace to set a value from.
|
|
@param[in] TokenNumber The PCD token number to set a current value for.
|
|
@param[in] Value The Boolean value to set.
|
|
|
|
@retval Boolean Return the value been set.
|
|
|
|
**/
|
|
BOOLEAN
|
|
EFIAPI
|
|
LibPcdSetExBool (
|
|
IN CONST GUID *Guid,
|
|
IN UINTN TokenNumber,
|
|
IN BOOLEAN Value
|
|
)
|
|
{
|
|
EFI_STATUS Status;
|
|
|
|
ASSERT (Guid != NULL);
|
|
|
|
Status = mPcd->SetBoolEx (Guid, TokenNumber, Value);
|
|
|
|
ASSERT_EFI_ERROR (Status);
|
|
|
|
return Value;
|
|
}
|
|
|
|
|
|
|
|
/**
|
|
When the token specified by TokenNumber and Guid is set,
|
|
then notification function specified by NotificationFunction is called.
|
|
If Guid is NULL, then the default token space is used.
|
|
If NotificationFunction is NULL, then ASSERT().
|
|
|
|
@param[in] Guid Pointer to a 128-bit unique value that designates which
|
|
namespace to set a value from. If NULL, then the default
|
|
token space is used.
|
|
@param[in] TokenNumber The PCD token number to monitor.
|
|
@param[in] NotificationFunction The function to call when the token
|
|
specified by Guid and TokenNumber is set.
|
|
|
|
@retval VOID
|
|
|
|
**/
|
|
VOID
|
|
EFIAPI
|
|
LibPcdCallbackOnSet (
|
|
IN CONST GUID *Guid, OPTIONAL
|
|
IN UINTN TokenNumber,
|
|
IN PCD_CALLBACK NotificationFunction
|
|
)
|
|
{
|
|
EFI_STATUS Status;
|
|
|
|
ASSERT (NotificationFunction != NULL);
|
|
|
|
Status = mPcd->CallbackOnSet (TokenNumber, Guid, NotificationFunction);
|
|
|
|
ASSERT_EFI_ERROR (Status);
|
|
|
|
return;
|
|
}
|
|
|
|
|
|
|
|
/**
|
|
Disable a notification function that was established with LibPcdCallbackonSet().
|
|
If NotificationFunction is NULL, then ASSERT().
|
|
|
|
@param[in] Guid Specify the GUID token space.
|
|
@param[in] TokenNumber Specify the token number.
|
|
@param[in] NotificationFunction The callback function to be unregistered.
|
|
|
|
@retval VOID
|
|
|
|
**/
|
|
VOID
|
|
EFIAPI
|
|
LibPcdCancelCallback (
|
|
IN CONST GUID *Guid, OPTIONAL
|
|
IN UINTN TokenNumber,
|
|
IN PCD_CALLBACK NotificationFunction
|
|
)
|
|
{
|
|
EFI_STATUS Status;
|
|
|
|
ASSERT (NotificationFunction != NULL);
|
|
|
|
Status = mPcd->CancelCallback (TokenNumber, Guid, NotificationFunction);
|
|
|
|
ASSERT_EFI_ERROR (Status);
|
|
|
|
return;
|
|
}
|
|
|
|
|
|
|
|
/**
|
|
Retrieves the next PCD token number from the token space specified by Guid.
|
|
If Guid is NULL, then the default token space is used. If TokenNumber is 0,
|
|
then the first token number is returned. Otherwise, the token number that
|
|
follows TokenNumber in the token space is returned. If TokenNumber is the last
|
|
token number in the token space, then 0 is returned. If TokenNumber is not 0 and
|
|
is not in the token space specified by Guid, then ASSERT().
|
|
|
|
@param[in] Pointer to a 128-bit unique value that designates which namespace
|
|
to set a value from. If NULL, then the default token space is used.
|
|
@param[in] The previous PCD token number. If 0, then retrieves the first PCD
|
|
token number.
|
|
|
|
@retval UINTN The next valid token number.
|
|
|
|
**/
|
|
UINTN
|
|
EFIAPI
|
|
LibPcdGetNextToken (
|
|
IN CONST GUID *Guid, OPTIONAL
|
|
IN UINTN TokenNumber
|
|
)
|
|
{
|
|
EFI_STATUS Status;
|
|
|
|
Status = mPcd->GetNextToken (Guid, &TokenNumber);
|
|
|
|
ASSERT_EFI_ERROR (Status);
|
|
|
|
return TokenNumber;
|
|
}
|
|
|
|
|
|
|
|
/**
|
|
Retrieves the next PCD token space from a token space specified by Guid.
|
|
Guid of NULL is reserved to mark the default local token namespace on the current
|
|
platform. If Guid is NULL, then the GUID of the first non-local token space of the
|
|
current platform is returned. If Guid is the last non-local token space,
|
|
then NULL is returned.
|
|
|
|
If Guid is not NULL and is not a valid token space in the current platform, then ASSERT().
|
|
|
|
|
|
|
|
@param[in] Pointer to a 128-bit unique value that designates from which namespace
|
|
to start the search.
|
|
|
|
@retval CONST GUID * The next valid token namespace.
|
|
|
|
**/
|
|
GUID *
|
|
EFIAPI
|
|
LibPcdGetNextTokenSpace (
|
|
IN CONST GUID *Guid
|
|
)
|
|
{
|
|
EFI_STATUS Status;
|
|
|
|
Status = mPcd->GetNextTokenSpace (&Guid);
|
|
|
|
ASSERT_EFI_ERROR (Status);
|
|
|
|
return (GUID *) Guid;
|
|
}
|
|
|
|
|
|
/**
|
|
Sets the PCD entry specified by PatchVariable to the value specified by Buffer
|
|
and SizeOfValue. Buffer is returned. If SizeOfValue is greater than
|
|
MaximumDatumSize, then set SizeOfValue to MaximumDatumSize and return
|
|
NULL to indicate that the set operation was not actually performed.
|
|
If SizeOfValue is set to MAX_ADDRESS, then SizeOfValue must be set to
|
|
MaximumDatumSize and NULL must be returned.
|
|
|
|
If PatchVariable is NULL, then ASSERT().
|
|
If SizeOfValue is NULL, then ASSERT().
|
|
If SizeOfValue > 0 and Buffer is NULL, then ASSERT().
|
|
|
|
@param[in] PatchVariable A pointer to the global variable in a module that is
|
|
the target of the set operation.
|
|
@param[in] MaximumDatumSize The maximum size allowed for the PCD entry specified by PatchVariable.
|
|
@param[in, out] SizeOfBuffer A pointer to the size, in bytes, of Buffer.
|
|
@param[in] Buffer A pointer to the buffer to used to set the target variable.
|
|
|
|
**/
|
|
VOID *
|
|
EFIAPI
|
|
LibPatchPcdSetPtr (
|
|
IN VOID *PatchVariable,
|
|
IN UINTN MaximumDatumSize,
|
|
IN OUT UINTN *SizeOfBuffer,
|
|
IN CONST VOID *Buffer
|
|
)
|
|
{
|
|
ASSERT (PatchVariable != NULL);
|
|
ASSERT (SizeOfBuffer != NULL);
|
|
|
|
if (*SizeOfBuffer > 0) {
|
|
ASSERT (Buffer != NULL);
|
|
}
|
|
|
|
if ((*SizeOfBuffer > MaximumDatumSize) ||
|
|
(*SizeOfBuffer == MAX_ADDRESS)) {
|
|
*SizeOfBuffer = MaximumDatumSize;
|
|
return NULL;
|
|
}
|
|
|
|
CopyMem (PatchVariable, Buffer, *SizeOfBuffer);
|
|
|
|
return (VOID *) Buffer;
|
|
}
|
|
|
|
|
|
|