diff options
Diffstat (limited to 'Board/EM/Pfat/PfatCpuPolicyOverride/PfatCpuPolicyOverride.c')
| -rw-r--r-- | Board/EM/Pfat/PfatCpuPolicyOverride/PfatCpuPolicyOverride.c | 387 |
1 files changed, 387 insertions, 0 deletions
diff --git a/Board/EM/Pfat/PfatCpuPolicyOverride/PfatCpuPolicyOverride.c b/Board/EM/Pfat/PfatCpuPolicyOverride/PfatCpuPolicyOverride.c new file mode 100644 index 0000000..6eeb851 --- /dev/null +++ b/Board/EM/Pfat/PfatCpuPolicyOverride/PfatCpuPolicyOverride.c @@ -0,0 +1,387 @@ +//************************************************************************* +//************************************************************************* +//** ** +//** (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 ** +//** ** +//************************************************************************* +//************************************************************************* |