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//*************************************************************************
//*************************************************************************
//** **
//** (C)Copyright 1985-2012, American Megatrends, Inc. **
//** **
//** All Rights Reserved. **
//** **
//** 5555 Oakbrook Parkway, Suite 200, Norcross, GA 30093 **
//** **
//** Phone: (770)-246-8600 **
//** **
//*************************************************************************
//*************************************************************************
//*************************************************************************
// $Header: /Alaska/SOURCE/Modules/SharkBayRefCodes/IntelPfat/PfatCpuPolicyOverride/PfatCpuPolicyOverride.c 3 10/29/12 4:09p Fredericko $
//
// $Revision: 3 $
//
// $Date: 10/29/12 4:09p $
//
//
//
//*************************************************************************
//<AMI_FHDR_START>
//
// Name: PfatCpuPolicyOverride.c
//
// Description: Code listing file for PfatCpuPolicyOverride
//
//<AMI_FHDR_END>
//*************************************************************************
#include "PfatCpuPolicyOverride.h"
EFI_GUID pFatFileGuid = PFAT_PUB_KEY_FFS_FILE_RAW_GUID;
STATIC EFI_PEI_NOTIFY_DESCRIPTOR mPfatCpuPolicyOverrideNotifyDesc = {
(EFI_PEI_PPI_DESCRIPTOR_NOTIFY_CALLBACK | EFI_PEI_PPI_DESCRIPTOR_TERMINATE_LIST),
&gPeiCpuPlatformPolicyPpiGuid,
PfatCpuPolicyOverrideEndOfPeiCpuPlatformPolicy
};
//**********************************************************************
//<AMI_PHDR_START>
//
// Procedure: CryptoGetRawImage
//
// Description: Loads binary from RAW section of X firwmare volume
//
//
// Output: Buffer - returns a pointer to allocated memory. Caller
// must free it when done.
// Size - returns the size of the binary loaded into the
// buffer.
//
//<AMI_PHDR_END>
//**********************************************************************
EFI_STATUS
LocatPfatPubKey (IN EFI_PEI_SERVICES **PpSv, IN OUT VOID **Buffer)
{
EFI_STATUS Status;
EFI_FIRMWARE_VOLUME_HEADER *pFV;
UINTN FvNum=0;
EFI_FFS_FILE_HEADER *ppFile=NULL;
BOOLEAN Found = FALSE;
Status = (*PpSv)->FfsFindNextVolume (PpSv, FvNum, &pFV);
while ( TRUE )
{
Status = (*PpSv)->FfsFindNextVolume( PpSv, FvNum, &pFV );
if ( EFI_ERROR( Status ))
{
return Status;
}
ppFile = NULL;
while ( TRUE )
{
Status = (*PpSv)->FfsFindNextFile( PpSv,
EFI_FV_FILETYPE_FREEFORM,
pFV,
&ppFile );
if ( Status == EFI_NOT_FOUND )
{
break;
}
DEBUG ((EFI_D_INFO, " ppFile guid:: %x \n", ppFile->Name));
if (CompareGuid( &ppFile->Name, &pFatFileGuid ))
{
Found = TRUE;
break;
}
}
if ( Found )
{
break;
}
else {
FvNum++;
}
}
Status = (*PpSv)->FfsFindSectionData( PpSv,
EFI_SECTION_RAW,
ppFile,
Buffer );
if (EFI_ERROR( Status )) {
return EFI_NOT_FOUND;
}
return Status;
}
//**********************************************************************
//<AMI_PHDR_START>
//
// Procedure: CpuPolicy Override for Pfat
//
// Description: PfatCpuPolicyOverride at end of PeiCpuPlatformPolicy
// handler.
//
// Output: PeiServices - Pointer to PEI Services Table.
// NotifyDesc - Pointer to the descriptor for the Notification
// event that caused this function to execute.
// Ppi - Pointer to the PPI data associated with
// this function.
//
//<AMI_PHDR_END>
//**********************************************************************
STATIC
EFI_STATUS
PfatCpuPolicyOverrideEndOfPeiCpuPlatformPolicy (
IN EFI_PEI_SERVICES **PeiServices,
IN EFI_PEI_NOTIFY_DESCRIPTOR *NotifyDesc,
IN VOID *Ppi
)
{
EFI_STATUS Status;
PEI_CPU_PLATFORM_POLICY_PPI *CpuPlatformPolicyPpi;
PFAT_CONFIG *PfatConfig;
CPU_CONFIG_PPI *CpuConfig;
UINT32 TotalROMSize = 0;
UINTN pFatHashDataSize = 0;
UINT8 pFatHash256Val[32];
UINT8 *Sha256PubKeyDigest;
VOID *pFatSha256Context;
VOID *pFatData;
Status = PeiServicesLocatePpi (&gPeiCpuPlatformPolicyPpiGuid, 0, NULL, &CpuPlatformPolicyPpi);
if ( EFI_ERROR( Status ) ) {
return Status;
}
PfatConfig = CpuPlatformPolicyPpi->SecurityConfig->PfatConfig;
CpuConfig = CpuPlatformPolicyPpi->CpuConfig;
CpuConfig->Pfat = CPU_FEATURE_ENABLE;
pFatHashDataSize = Sha256GetContextSize ();
Status = ((*PeiServices)->AllocatePool) (PeiServices, pFatHashDataSize, &pFatSha256Context);
if ( EFI_ERROR( Status ) ) {
return Status;
}
Status = LocatPfatPubKey(PeiServices ,&Sha256PubKeyDigest);
//
// If it fails it might be in non PUPC mode
//
if ( !EFI_ERROR( Status ) ) {
PfatConfig->PupHeader.PkgAttributes = 0;
CopyMem (&PfatConfig->Ppdt.PkeySlot0, Sha256PubKeyDigest, 32);
}
///
/// Select to Flash Map 0 Register to get the number of flash Component
///
MmioAndThenOr32 (
SB_RCBA + R_PCH_SPI_FDOC,
(UINT32) (~(B_PCH_SPI_FDOC_FDSS_MASK | B_PCH_SPI_FDOC_FDSI_MASK)),
(UINT32) (V_PCH_SPI_FDOC_FDSS_FSDM | R_PCH_SPI_FDBAR_FLASH_MAP0)
);
switch ( MmioRead16 (SB_RCBA + R_PCH_SPI_FDOD) & B_PCH_SPI_FDBAR_NC ) {
case V_PCH_SPI_FDBAR_NC_1:
PfatConfig->NumSpiComponents = 1;
break;
case V_PCH_SPI_FDBAR_NC_2:
PfatConfig->NumSpiComponents = 2;
break;
default:
break;
}
///
/// Select to Flash Components Register to get the Component 1 Density
///
MmioAndThenOr32 (
SB_RCBA + R_PCH_SPI_FDOC,
(UINT32) (~(B_PCH_SPI_FDOC_FDSS_MASK | B_PCH_SPI_FDOC_FDSI_MASK)),
(UINT32) (V_PCH_SPI_FDOC_FDSS_COMP | R_PCH_SPI_FCBA_FLCOMP)
);
///
/// Copy Component 1 Density
///
switch ( (UINT8) MmioRead32 (SB_RCBA + R_PCH_SPI_FDOD) & B_PCH_SPI_FLCOMP_COMP1_MASK ) {
case V_PCH_SPI_FLCOMP_COMP1_512KB:
PfatConfig->ComponentSize[0] = EnumSpiCompSize512KB;
TotalROMSize += (UINT32) LShiftU64(512, KBShift);
break;
case V_PCH_SPI_FLCOMP_COMP1_1MB:
PfatConfig->ComponentSize[0] = EnumSpiCompSize1MB;
TotalROMSize += (UINT32) LShiftU64(1, MBShift);
break;
case V_PCH_SPI_FLCOMP_COMP1_2MB:
PfatConfig->ComponentSize[0] = EnumSpiCompSize2MB;
TotalROMSize += (UINT32) LShiftU64(2, MBShift);
break;
case V_PCH_SPI_FLCOMP_COMP1_4MB:
PfatConfig->ComponentSize[0] = EnumSpiCompSize4MB;
TotalROMSize += (UINT32) LShiftU64(4, MBShift);
break;
case V_PCH_SPI_FLCOMP_COMP1_8MB:
PfatConfig->ComponentSize[0] = EnumSpiCompSize8MB;
TotalROMSize += (UINT32) LShiftU64(8, MBShift);
break;
case V_PCH_SPI_FLCOMP_COMP1_16MB:
PfatConfig->ComponentSize[0] = EnumSpiCompSize16MB;
TotalROMSize += (UINT32) LShiftU64(16, MBShift);
break;
case V_PCH_SPI_FLCOMP_COMP1_32MB:
PfatConfig->ComponentSize[0] = EnumSpiCompSize32MB;
TotalROMSize += (UINT32) LShiftU64(32, MBShift);
break;
case V_PCH_SPI_FLCOMP_COMP1_64MB:
PfatConfig->ComponentSize[0] = EnumSpiCompSize64MB;
TotalROMSize += (UINT32) LShiftU64(64, MBShift);
break;
default:
break;
}
///
/// Copy Component 2 Density
///
if ( PfatConfig->NumSpiComponents == 2 ) {
switch ( (UINT8) MmioRead32 (SB_RCBA + R_PCH_SPI_FDOD) & B_PCH_SPI_FLCOMP_COMP2_MASK ) {
case V_PCH_SPI_FLCOMP_COMP2_512KB:
PfatConfig->ComponentSize[1] = EnumSpiCompSize512KB;
TotalROMSize += (UINT32) LShiftU64(512, KBShift);
break;
case V_PCH_SPI_FLCOMP_COMP2_1MB:
PfatConfig->ComponentSize[1] = EnumSpiCompSize1MB;
TotalROMSize += (UINT32) LShiftU64(1, MBShift);
break;
case V_PCH_SPI_FLCOMP_COMP2_2MB:
PfatConfig->ComponentSize[1] = EnumSpiCompSize2MB;
TotalROMSize += (UINT32) LShiftU64(2, MBShift);
break;
case V_PCH_SPI_FLCOMP_COMP2_4MB:
PfatConfig->ComponentSize[1] = EnumSpiCompSize4MB;
TotalROMSize += (UINT32) LShiftU64(4, MBShift);
break;
case V_PCH_SPI_FLCOMP_COMP2_8MB:
PfatConfig->ComponentSize[1] = EnumSpiCompSize8MB;
TotalROMSize += (UINT32) LShiftU64(8, MBShift);
break;
case V_PCH_SPI_FLCOMP_COMP2_16MB:
PfatConfig->ComponentSize[1] = EnumSpiCompSize16MB;
TotalROMSize += (UINT32) LShiftU64(16, MBShift);
break;
case V_PCH_SPI_FLCOMP_COMP2_32MB:
PfatConfig->ComponentSize[1] = EnumSpiCompSize32MB;
TotalROMSize += (UINT32) LShiftU64(32, MBShift);
break;
case V_PCH_SPI_FLCOMP_COMP2_64MB:
PfatConfig->ComponentSize[1] = EnumSpiCompSize64MB;
TotalROMSize += (UINT32) LShiftU64(64, MBShift);
break;
default:
break;
}
}
//
// LastSfam : Number of SfamData - 1
//
PfatConfig->Ppdt.LastSfam = PFAT_COUNT - 1;
if (PfatConfig->Ppdt.LastSfam > (MAX_SFAM_COUNT - 1)) {
PfatConfig->Ppdt.LastSfam = MAX_SFAM_COUNT - 1;
}
//
// SfamData[0] : BIOS Region only skip NVRAM
//
PfatConfig->Ppdt.SfamData[0].FirstByte = TotalROMSize - (0xFFFFFFFF - FV_MAIN_BASE + 1);
PfatConfig->Ppdt.SfamData[0].LastByte = TotalROMSize - 1;
//
// SfamData[1] : ME Region + GBE Region + Description Region
//
PfatConfig->Ppdt.SfamData[1].FirstByte = 0x00;
PfatConfig->Ppdt.SfamData[1].LastByte = TotalROMSize - FLASH_SIZE -1;
PfatConfig->Ppdt.PpdtSize = (sizeof (PPDT) - sizeof (PfatConfig->Ppdt.SfamData) + ((PfatConfig->Ppdt.LastSfam + 1) * sizeof (SFAM_DATA)));
//
// Defined values in the token
//
PfatConfig->Ppdt.BiosSvn = BIOS_SVN;
PfatConfig->PfatMemSize = (UINT8) RShiftU64(PfatMaxSectionSize, MBShift) + 1;
//
// Hash the PPDT to PfatConfig->PpdtHash
//
pFatHashDataSize = PfatConfig->Ppdt.PpdtSize;
pFatData = (VOID *) &PfatConfig->Ppdt;
Sha256Init (pFatSha256Context);
Sha256Update (pFatSha256Context, pFatData, pFatHashDataSize);
Sha256Final (pFatSha256Context, pFatHash256Val);
CopyMem (&PfatConfig->PpdtHash[0], &pFatHash256Val[0], 8);
CopyMem (&PfatConfig->PpdtHash[1], &pFatHash256Val[8], 8);
CopyMem (&PfatConfig->PpdtHash[2], &pFatHash256Val[16], 8);
CopyMem (&PfatConfig->PpdtHash[3], &pFatHash256Val[24], 8);
return Status;
}
EFI_STATUS
PfatCpuPolicyOverrideEntryPoint (
IN EFI_FFS_FILE_HEADER *FfsHeader,
IN EFI_PEI_SERVICES **PeiServices
)
{
EFI_STATUS Status;
EFI_PEI_READ_ONLY_VARIABLE_PPI *ReadOnlyVariable;
SETUP_DATA SetupData;
EFI_GUID SetupGuid = SYSTEM_CONFIGURATION_GUID;
UINTN VariableSize= sizeof (SETUP_DATA);
Status = PeiServicesLocatePpi (&gEfiPeiReadOnlyVariablePpiGuid, 0, NULL, &ReadOnlyVariable);
if ( EFI_ERROR( Status ) ) {
return Status;
}
Status = ReadOnlyVariable->PeiGetVariable (
PeiServices,
L"Setup",
&SetupGuid,
NULL,
&VariableSize,
&SetupData
);
if ( EFI_ERROR( Status ) ) {
return Status;
}
if ( SetupData.Pfatstate == Enable ) {
Status = PeiServicesNotifyPpi (&mPfatCpuPolicyOverrideNotifyDesc);
if ( EFI_ERROR( Status ) ) {
return Status;
}
}
return Status;
}
//*************************************************************************
//*************************************************************************
//** **
//** (C)Copyright 1985-2012, American Megatrends, Inc. **
//** **
//** All Rights Reserved. **
//** **
//** 5555 Oakbrook Parkway, Suite 200, Norcross, GA 30093 **
//** **
//** Phone: (770)-246-8600 **
//** **
//*************************************************************************
//*************************************************************************
|
