diff options
Diffstat (limited to 'Core/EM/NVRAM/NVRAMPEI.c')
| -rw-r--r-- | Core/EM/NVRAM/NVRAMPEI.c | 584 |
1 files changed, 584 insertions, 0 deletions
diff --git a/Core/EM/NVRAM/NVRAMPEI.c b/Core/EM/NVRAM/NVRAMPEI.c new file mode 100644 index 0000000..53ebd2b --- /dev/null +++ b/Core/EM/NVRAM/NVRAMPEI.c @@ -0,0 +1,584 @@ +//********************************************************************** +//********************************************************************** +//** ** +//** (C)Copyright 1985-2013, American Megatrends, Inc. ** +//** ** +//** All Rights Reserved. ** +//** ** +//** 5555 Oakbrook Parkway, Suite 200, Norcross, GA 30093 ** +//** ** +//** Phone: (770)-246-8600 ** +//** ** +//********************************************************************** +//********************************************************************** + +//********************************************************************** +// $Header: /Alaska/SOURCE/Core/Modules/NVRAM/NVRAMPEI.c 19 5/22/14 6:05p Oleksiyy $ +// +// $Revision: 19 $ +// +// $Date: 5/22/14 6:05p $ +//********************************************************************** +// Revision History +// ---------------- +// $Log: /Alaska/SOURCE/Core/Modules/NVRAM/NVRAMPEI.c $ +// +// 19 5/22/14 6:05p Oleksiyy +// [TAG] EIP170545 +// [Category] Improvement +// [Description] Spelling errors corrected. +// [Files] NVRAMPEI.c +// +// 18 1/04/13 10:35a Felixp +// Minor improvement in PeiInitNV: when CreateHob fails, still install the +// PPI. +// +// 17 12/13/12 6:17p Oleksiyy +// [TAG] EIP109422 +// [Category] Improvement +// [Description] Issues found by CppCheck in NVRAM Module part +// [Files] NVRAMDXE.c and NVRAMPEI.c +// +// 16 8/12/11 12:15p Artems +// EIP 64107: Added changes for module to be compliant with UEFI +// specification v 2.3.1 +// +// 15 2/02/10 5:15p Oleksiyy +// EIP 33263 : Hooks for SetVariable, GetVariable and GetNextVarName +// added +// +// 14 11/24/09 4:05p Oleksiyy +// EIP 26085: Added support to read All the NVRAM variable (including +// defoults) with GetNextVariable in PEI and DXE. +// +// 13 11/23/09 6:25p Felixp +// +// 12 11/23/09 4:44p Felixp +// Code to validate NVRAM header fields used by the NVRAM driver is added. +// If problem is found, the header fields are updated with the correct +// values. +// +// 11 7/10/09 8:50a Felixp +// Code clean up; comments and function header added +// +// 10 6/26/09 3:29p Felixp +// Active varstore detection is moved into new IsMainNvramStoreValid +// function in NvramRead.c +// +// 9 5/21/09 5:39p Felixp +// 1. Disable NVRAM content if it has been corrupted during failed BIOS +// update +// 2. Validate compatibility of the NVRAM data using external hook +// (IsNvramDataCompatible). +// Disable incompatible NVRAM content. +// +// 8 1/16/09 3:39p Felixp +// New Feature. EIP 18483. Interface of the hooks that detect NVRAM +// operational mode is extended. +// NVRAM driver uses platform hooks(IsMfgMode, IsResetConfigMode, +// IsDefaultConfigMode) to detect, which set of configuration values +// are to be used. In some cases the mode is detected based on value of +// the NVRAM variable. +// Interface of the hook functions is extended. New parameter is added. +// Pointer to EFI_PEI_READ_ONLY_VARIABLE2_PPI PPI is passed to the hook +// functions. +// The pointer can be used to read and enumerate existing NVRAM variables. +// +// 7 10/09/08 11:47a Felixp +// 1. Fault tolerant NVRAM garbage collection support is added. +// Use FAULT_TOLERANT_NVRAM_UPDATE SDL token to enable/disable (disabled +// by default). +// NOTE: This feature requires upgrade of the Board module. +// NOTE: This feature requires porting: +// Fault tolerant update requires reserved flash area of size NVRAM_SIZE +// used for back up during NVRAM garbage collection. +// The address of the area is defined by NVRAM_BACKUP_ADDRESS SDL token +// defined in Board.sdl. +// Size and Base addresses of other firmware volumes may need to be +// adjusted to free up space for the NVRAM back up area. +// Default ROM layout expects NVRAM back up area immediately below the +// main NVRAM area. +// For projects with the customized ROM layout Core.mak has to be updated. +// 2. Top level NVRAM function updated to be reentrance-safe. +// NOTE: This feature requires upgrade of the SB module. +// 3. Improved recovery from the flash programming failures and +// corruptions within NVRAM area. +// 4. More reliable non-fault tolerant garbage collection. +// +// 6 6/06/08 11:01a Felixp +// +// 4 2/19/08 11:07p Felixp +// Update in init routine PeiInitNV: during boot with default +// configuration, main NVRAM store is also exposed. This is needed to +// provide current value for variables without defaults. +// +// 3 9/06/07 12:14a Felixp +// +// 2 8/31/07 3:44p Felixp +// NVRAM code has been significantly changed to introduce the following +// improvements: +// 1. The code is chaned to always use the same amount of memory. +// Previous implementation allocated memory as needed, which caused +// occasional S4 problems. +// Plus S4 resume never worked during the very first boot after the +// firmware update. +// 2. Support for NVRAM defaults added. +// NVRAM image with the default values for the Setup variables is now +// generated by the build process. +// The image is generated by the HpkTool (included into AMITSE module +// part). +// In addition to standard Setup defaults it is also possible +// to generate manufactoring defaults. Support for the manufactoring +// defaults +// is disabled by default and can be enabled using +// MANUFACTURING_MODE_SUPPORT SDL token. +// 3. Support for boot with alternative configurations is added. +// Decision to switch to the alternative configuration +// (alternative set of values for NVRAM variables) +// is based on values returned by the porintg routine in OemPort.c. +// During boot with alternative configurations GetVariable service +// returns alternative values for the setup-related variables. +// If variable does not have an alternative value, current value is +// returned. +// Two alternative configurations are supported: +// Boot with manufactoring settings(activated when IsMfgMode routine in +// OemPort.c returns TRUE). +// Boot with default settings(activated when IsDefaultConfigMode routine +// in OemPort.c returns TRUE). +// NOTE: This feature requires of the Board module +// 4.NVRAM reset option is added. +// If porting routine IsResetConfigMode in OemPort.c returns TRUE in PEI +// phase, +// NVRAM content will be reset during initialization of the DXE NVRAM +// driver. +// During reset operation all setup-related variables are reset to their +// default values. +// All other variables are deleted. +// NOTE: This feature requires upgrade of the Board module +// 5.Detection of NVRAM update added. +// NVRAM implementation detects if NVRAM has been updated since the last +// NVRAM call. +// This provides ability to use variables services before and after +// firmware update. +// 6.Overall code clean up and simplification. +// 7.Core Sources are no longer required in order to use NV_SIMULATION +// option. +// 8.PI 1.0 support. +// Support for a PI 1.0 complient variable PPI is added. Old PPI is still +// preserved in this label for backward compatibility. +// New library routines PeiGetVariable and PeiGetNextVariableName are +// created in order to hide the differences between two PPIs. +// It is recommended to update existing code to use new library routines. +// Support of the old PPI may be dropped in the future versions of Core. +// 9. NVRAM is now packaged as a raw FFS file embedded into the standard +// FV (used to be non-standard FV with raw NVRAM image). +// Validation: New NVRAM code has been validated using SCT and EFI version +// of Windows Server 2008 +// Files modified: Core.sdl, Core.mak, AmiPeiLib.h, PeiLib.c, +// ReadOnlyVariable.h, , Token.c, HpkTool.exe, AMITSE.mak, Setup.ini, +// NVRAM.sdl, NVRAM.mak, NVRAM.h, NVRAMRead.c, NVRAMPEI.c, +// NVRAMDXE.c +// +// 1 8/24/06 12:38p Felixp +// +// 3 10/09/05 11:25a Felixp +// Performance measurements added. +// +// 2 3/04/05 9:42a Mandal +// +// 1 1/28/05 12:44p Felixp +// +// 2 1/18/05 3:22p Felixp +// PrintDebugMessage renamed to Trace +// +// 1 12/27/04 4:08p Felixp +// +// 3 4/05/04 1:10a Felixp +// +// 2 4/04/04 2:58p Felixp +// +// 1 3/29/04 2:32a Felixp +// +//********************************************************************** +//<AMI_FHDR_START> +// +// Name: NVRAMPEI.h +// +// Description: +// +//<AMI_FHDR_END> +//********************************************************************** +#include <PPI/ReadOnlyVariable2.h> +#include <PPI/ReadOnlyVariable.h> +#include <AmiPeiLib.h> +#include "NVRAM.h" + +//Defined in CSPLib(OEMPort.c) +BOOLEAN IsMfgMode( + IN EFI_PEI_SERVICES **PeiServices, + IN CONST EFI_PEI_READ_ONLY_VARIABLE2_PPI *ReadVariablePpi +); +BOOLEAN IsResetConfigMode( + IN EFI_PEI_SERVICES **PeiServices, + IN CONST EFI_PEI_READ_ONLY_VARIABLE2_PPI *ReadVariablePpi +); +BOOLEAN IsDefaultConfigMode( + IN EFI_PEI_SERVICES **PeiServices, + IN CONST EFI_PEI_READ_ONLY_VARIABLE2_PPI *ReadVariablePpi +); +BOOLEAN IsNvramDataCompatible( + IN EFI_PEI_SERVICES **PeiServices, + IN CONST EFI_PEI_READ_ONLY_VARIABLE2_PPI *ReadVariablePpi +); + +//Defined in Tokens.c +extern UINTN NvramAddress; +extern UINTN NvramBackupAddress; +extern const UINTN NvramSize; +extern const BOOLEAN NvSimulation; + +typedef struct{ + EFI_PEI_READ_ONLY_VARIABLE2_PPI Ppi; + UINT32 InfoCount; + UINT32 LastInfoIndex; + NVRAM_STORE_INFO NvramInfo[3]; + NVRAM_STORE_INFO *MainInfo; +} VARIABLE_PPI; + +//--- GetVariable and GetNextVarName Hooks ------ +//============================================================================ +// Type definitions +typedef EFI_STATUS (PEI_HOOK_GET_VARIABLE)( + IN CONST EFI_PEI_READ_ONLY_VARIABLE2_PPI *This, + IN CONST CHAR16 *VariableName, IN CONST EFI_GUID *VendorGuid, + OUT UINT32 *Attributes, IN OUT UINTN *DataSize, OUT VOID *Data +); + +typedef EFI_STATUS (PEI_HOOK_GET_NEXT_VARIABLE_NAME)( + IN CONST EFI_PEI_READ_ONLY_VARIABLE2_PPI *This, + IN OUT UINTN *VariableNameSize, + IN OUT CHAR16 *VariableName, IN OUT EFI_GUID *VendorGuid +); + +//====================================================================== +// Global extern variables + +extern PEI_HOOK_GET_VARIABLE PEI_GET_VAR_LIST EndOfGetVariableHook; +extern PEI_HOOK_GET_NEXT_VARIABLE_NAME PEI_GET_NEXT_VAR_NAME_LIST EndOfGetNextVarNameHook; + +PEI_HOOK_GET_VARIABLE* PeiGetVariableHookList[]= + {PEI_GET_VAR_LIST NULL}; +PEI_HOOK_GET_NEXT_VARIABLE_NAME* PeiGetNextVarNameHookList[]= + {PEI_GET_NEXT_VAR_NAME_LIST NULL}; + +EFI_STATUS PeiGetVariableHook( + IN CONST EFI_PEI_READ_ONLY_VARIABLE2_PPI *This, + IN CONST CHAR16 *VariableName, IN CONST EFI_GUID *VendorGuid, + OUT UINT32 *Attributes, IN OUT UINTN *DataSize, OUT VOID *Data +){ + UINTN i; + EFI_STATUS Result = EFI_UNSUPPORTED; + for(i=0; PeiGetVariableHookList[i] && (Result == EFI_UNSUPPORTED); i++) + Result = PeiGetVariableHookList[i](This,VariableName, VendorGuid,Attributes, DataSize, Data); + return Result; +} + +EFI_STATUS PeiGetNextVarNameHook( + IN CONST EFI_PEI_READ_ONLY_VARIABLE2_PPI *This, + IN OUT UINTN *VariableNameSize, + IN OUT CHAR16 *VariableName, IN OUT EFI_GUID *VendorGuid +){ + UINTN i; + EFI_STATUS Result = EFI_UNSUPPORTED; + for(i=0; PeiGetNextVarNameHookList[i] && (Result == EFI_UNSUPPORTED); i++) + Result = PeiGetNextVarNameHookList [i](This,VariableNameSize,VariableName, VendorGuid); + return Result; +} +//---GetVariable and GetNextVarName Hooks END------ + +//<AMI_PHDR_START> +//---------------------------------------------------------------------------- +// Procedure: VarPpiGetVariable +// +// Description: This function searches for a Variable with specific GUID and Name +// +// Input: IN EFI_PEI_SERVICES **PeiServices - Double pointer to Pei Services instance +// IN CHAR16 *VariableName - pointer to Var Name in Unicode +// IN EFI_GUID *VendorGuid - pointer to Var GUID +// OPTIONAL OUT UINT32* Attributes - Pointer to memory where Attributes will be returned +// IN OUT UINTN *DataSize - size of Var - if smaller than actual EFI_BUFFER_TOO_SMALL +// will be returned and DataSize will be set to actual size needed +// OUT VOID *Data - Pointer to memory where Var will be returned +// +// Output: EFI_STATUS - based on result +// +//---------------------------------------------------------------------------- +//<AMI_PHDR_END> +EFI_STATUS VarPpiGetVariable( + IN EFI_PEI_SERVICES **PeiServices, + IN CHAR16 *VariableName, IN EFI_GUID *VendorGuid, + OUT UINT32 *Attributes OPTIONAL, + IN OUT UINTN *DataSize, OUT VOID *Data +) +{ + return PeiGetVariable( + PeiServices, VariableName, VendorGuid, Attributes, DataSize, Data + ); +} + +//<AMI_PHDR_START> +//---------------------------------------------------------------------------- +// Procedure: VarPpiGetNextVariableName +// +// Description: This function searches for Var folowed by the Var with specific name (optional) +// and GUID and returns it's Name. +// +// Input: IN EFI_PEI_SERVICES **PeiServices - Double pointer to Pei Services instance +// IN OUT UINTN *VariableNameSize - size of Varname - if smaller than actual EFI_BUFFER_TOO_SMALL +// will be returned and DataSize will be set to actual size needed +// IN OUT CHAR16 *VariableName - pointer where Var Name in Unicode will be stored +// IN OUT EFI_GUID *VendorGuid - pointer to menory where Var GUID is stored +// +// Output: EFI_STATUS - based on result +// +//---------------------------------------------------------------------------- +//<AMI_PHDR_END> +EFI_STATUS VarPpiGetNextVariableName( + IN EFI_PEI_SERVICES **PeiServices, + IN OUT UINTN *VariableNameSize, + IN OUT CHAR16 *VariableName, IN OUT EFI_GUID *VendorGuid +) +{ + return PeiGetNextVariableName( + PeiServices, VariableNameSize, VariableName, VendorGuid + ); +} + +//<AMI_PHDR_START> +//---------------------------------------------------------------------------- +// Procedure: VarPpi2GetVariable +// +// Description: This function searches for Var with specific GUID +// +// Input: IN CONST EFI_PEI_READ_ONLY_VARIABLE2_PPI *This - pointer to FI_PEI_READ_ONLY_VARIABLE2_PPI +// IN CHAR16 *VariableName - pointer to Var Name in Unicode +// IN EFI_GUID *VendorGuid - pointer to Var GUID +// OPTIONAL OUT UINT32* Attributes - Pointer to memory where Attributes will be returned +// IN OUT UINTN *DataSize - size of Var - if smaller than actual EFI_BUFFER_TOO_SMALL +// will be returned and DataSize will be set to actual size needed +// OUT VOID *Data - Pointer to memory where Var will be returned +// +// Output: EFI_STATUS - based on result +// +//---------------------------------------------------------------------------- +//<AMI_PHDR_END> +EFI_STATUS VarPpi2GetVariable( + IN CONST EFI_PEI_READ_ONLY_VARIABLE2_PPI *This, + IN CONST CHAR16 *VariableName, IN CONST EFI_GUID *VendorGuid, + OUT UINT32 *Attributes, IN OUT UINTN *DataSize, OUT VOID *Data +) +{ + EFI_STATUS Status; + VARIABLE_PPI *VarPpi = (VARIABLE_PPI*)This; + Status = PeiGetVariableHook ( + This, VariableName, VendorGuid, Attributes, DataSize, Data + ); + if (Status != EFI_UNSUPPORTED) return Status; + Status = NvGetVariable2( + (CHAR16*)VariableName, (EFI_GUID*)VendorGuid, Attributes, + DataSize, Data, VarPpi->InfoCount, VarPpi->NvramInfo + ); + return Status; +} + +//<AMI_PHDR_START> +//---------------------------------------------------------------------------- +// Procedure: NvGetNextVariableName2 +// +// Description: This function searches for Var with specific GUID and Enty number +// not betwin LastInfoIndex - InfoCount parameter and returns it's Name. +// +// Input: IN CONST EFI_PEI_READ_ONLY_VARIABLE2_PPI *This - pointer to FI_PEI_READ_ONLY_VARIABLE2_PPI +// IN OUT UINTN *VariableNameSize - size of Varname - if smaller than actual EFI_BUFFER_TOO_SMALL +// will be returned and DataSize will be set to actual size needed +// IN OUT CHAR16 *VariableName - pointer where Var Name in Unicode will be stored +// IN OUT EFI_GUID *VendorGuid - pointer to menory where Var GUID will be stored +// +// Output: EFI_STATUS - based on result +// +//---------------------------------------------------------------------------- +//<AMI_PHDR_END> +EFI_STATUS VarPpi2GetNextVariableName( + IN CONST EFI_PEI_READ_ONLY_VARIABLE2_PPI *This, + IN OUT UINTN *VariableNameSize, + IN OUT CHAR16 *VariableName, IN OUT EFI_GUID *VendorGuid +) +{ + EFI_STATUS Status; + VARIABLE_PPI *VarPpi = (VARIABLE_PPI*)This; + Status = PeiGetNextVarNameHook ( + This, VariableNameSize, VariableName, VendorGuid + ); + if (Status != EFI_UNSUPPORTED) return Status; + Status = NvGetNextVariableName2( + VariableNameSize, VariableName, VendorGuid, + VarPpi->InfoCount, VarPpi->NvramInfo, + &(VarPpi->LastInfoIndex),FALSE + ); + return Status; +} + +// PPI interface definition +EFI_PEI_READ_ONLY_VARIABLE_PPI VariablePpi = {VarPpiGetVariable, VarPpiGetNextVariableName}; +EFI_PEI_READ_ONLY_VARIABLE2_PPI Variable2Ppi = {VarPpi2GetVariable, VarPpi2GetNextVariableName}; + +// PPI to be installed +EFI_PEI_PPI_DESCRIPTOR VariablePpiListTemplate[] = +{ + { + EFI_PEI_PPI_DESCRIPTOR_PPI, + &gEfiPeiReadOnlyVariable2PpiGuid, &Variable2Ppi + }, + { + EFI_PEI_PPI_DESCRIPTOR_PPI | EFI_PEI_PPI_DESCRIPTOR_TERMINATE_LIST, + &gPeiReadOnlyVariablePpiGuid, &VariablePpi + } +}; + +//<AMI_PHDR_START> +//---------------------------------------------------------------------------- +// Procedure: PeiInitNV +// +// Description: This function inits NVRAM +// +// Input: IN EFI_FFS_FILE_HEADER *FfsHeader - pointer to FfsHeader +// IN EFI_PEI_SERVICES **PeiServices - double pointer to the Pei Sevices structure +// +// Output: EFI_STATUS - based on result +// +//---------------------------------------------------------------------------- +//<AMI_PHDR_END> +EFI_STATUS PeiInitNV ( + IN EFI_FFS_FILE_HEADER *FfsHeader, + IN EFI_PEI_SERVICES **PeiServices +) +{ + EFI_STATUS Status; + EFI_PEI_PPI_DESCRIPTOR *VariablePpiList; + VARIABLE_PPI *VarPpi; + UINT32 NvramMode=0; + NVRAM_HOB *pHob; + BOOLEAN ResetConfigMode; + NVRAM_STORE_INFO MainNvram; + VARIABLE_PPI TmpVarPpi; + VOID *BackupNvramAddress = (VOID*)NvramBackupAddress; + BOOLEAN BackupStoreValid; + BOOLEAN NvramIsCorrupted = FALSE; + + Status = (*PeiServices)->AllocatePool(PeiServices, sizeof(VariablePpiListTemplate)+sizeof(VARIABLE_PPI), &VariablePpiList); + if (EFI_ERROR(Status)) return Status; + VariablePpiList[0]=VariablePpiListTemplate[0]; + VariablePpiList[1]=VariablePpiListTemplate[1]; + VarPpi = (VARIABLE_PPI*)(VariablePpiList + 2); + VariablePpiList[0].Ppi = VarPpi; + VarPpi->Ppi = Variable2Ppi; + VarPpi->InfoCount = 0; + VarPpi->LastInfoIndex = 0; + MainNvram.NvramAddress = (UINT8*)NvramAddress; + MainNvram.NvramSize = NvramSize; + if (!IsMainNvramStoreValid(&MainNvram, BackupNvramAddress,&BackupStoreValid)){ + if (BackupStoreValid){ + VOID *Tmp = BackupNvramAddress; + BackupNvramAddress = MainNvram.NvramAddress; + MainNvram.NvramAddress = Tmp; + }else{ + NvramIsCorrupted = TRUE; + } + } + NvInitInfoBuffer( + &MainNvram, + NvramHeaderLength, + NVRAM_STORE_FLAG_NON_VALATILE + ); + //Check if FV signature is valid + NvramIsCorrupted = NvramIsCorrupted + || ((EFI_FIRMWARE_VOLUME_HEADER*)MainNvram.NvramAddress)->Signature!=FV_SIGNATURE; + if (NvramIsCorrupted){ + VarPpi->MainInfo = NULL; + NvramMode=NVRAM_MODE_RESET_CONFIGURATION; + PEI_TRACE((-1, PeiServices, "PEI: NVRAM header corruption is detected\n")); + }else{ + TmpVarPpi = *VarPpi; + TmpVarPpi.NvramInfo[0]=MainNvram; + TmpVarPpi.MainInfo = &TmpVarPpi.NvramInfo[0]; + TmpVarPpi.InfoCount=1; + + if ( IsMfgMode(PeiServices,&TmpVarPpi.Ppi) + && NvGetDefaultsInfo( + MfgDefaults,&MainNvram,&VarPpi->NvramInfo[VarPpi->InfoCount] + ) != NULL + ){ + VarPpi->InfoCount++; + NvramMode|=NVRAM_MODE_MANUFACTORING; + } + ResetConfigMode = IsResetConfigMode(PeiServices,&TmpVarPpi.Ppi); + if (!ResetConfigMode && !IsDefaultConfigMode(PeiServices,&TmpVarPpi.Ppi)){ + VarPpi->NvramInfo[VarPpi->InfoCount]=MainNvram; + VarPpi->MainInfo = &VarPpi->NvramInfo[VarPpi->InfoCount]; + VarPpi->InfoCount++; + if (NvGetDefaultsInfo( + StdDefaults,&MainNvram,&VarPpi->NvramInfo[VarPpi->InfoCount] + ) != NULL + ){ + VarPpi->InfoCount++; + } + }else{ + if (NvGetDefaultsInfo( + StdDefaults,&MainNvram,&VarPpi->NvramInfo[VarPpi->InfoCount] + ) != NULL + ){ + VarPpi->InfoCount++; + } + if (ResetConfigMode){ + VarPpi->MainInfo = NULL; + NvramMode|=NVRAM_MODE_RESET_CONFIGURATION; + }else{ + VarPpi->NvramInfo[VarPpi->InfoCount]=MainNvram; + VarPpi->MainInfo = &VarPpi->NvramInfo[VarPpi->InfoCount]; + VarPpi->InfoCount++; + NvramMode|=NVRAM_MODE_DEFAULT_CONFIGURATION; + } + } + if (!IsNvramDataCompatible(PeiServices, &VarPpi->Ppi)){ + PEI_TRACE((-1, PeiServices, "PEI: Incompatible NVRAM detected\n")); + VarPpi->MainInfo = NULL; + VarPpi->InfoCount=0; + } + } + Status=(*PeiServices)->CreateHob(PeiServices, EFI_HOB_TYPE_GUID_EXTENSION, sizeof(NVRAM_HOB),&pHob); + ASSERT_PEI_ERROR(PeiServices,Status) + if (!EFI_ERROR(Status)){ + pHob->Header.Name=AmiNvramHobGuid; + pHob->NvramAddress=(EFI_PHYSICAL_ADDRESS)(UINTN)MainNvram.NvramAddress; + pHob->BackupAddress = (EFI_PHYSICAL_ADDRESS)(UINTN)BackupNvramAddress; + pHob->NvramSize = MainNvram.NvramSize; + if (NvSimulation) NvramMode|=NVRAM_MODE_SIMULATION; + pHob->NvramMode = NvramMode; + pHob->HeaderLength = NvramHeaderLength; + } + return (*PeiServices)->InstallPpi(PeiServices,VariablePpiList); +} + +//********************************************************************** +//********************************************************************** +//** ** +//** (C)Copyright 1985-2013, American Megatrends, Inc. ** +//** ** +//** All Rights Reserved. ** +//** ** +//** 5555 Oakbrook Parkway, Suite 200, Norcross, GA 30093 ** +//** ** +//** Phone: (770)-246-8600 ** +//** ** +//********************************************************************** +//**********************************************************************
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