diff options
Diffstat (limited to 'Core/EM/TCG2/TpmClearOnRollback/TpmClearOnRollbackSmiFlash.c')
| -rw-r--r-- | Core/EM/TCG2/TpmClearOnRollback/TpmClearOnRollbackSmiFlash.c | 160 |
1 files changed, 160 insertions, 0 deletions
diff --git a/Core/EM/TCG2/TpmClearOnRollback/TpmClearOnRollbackSmiFlash.c b/Core/EM/TCG2/TpmClearOnRollback/TpmClearOnRollbackSmiFlash.c new file mode 100644 index 0000000..720940b --- /dev/null +++ b/Core/EM/TCG2/TpmClearOnRollback/TpmClearOnRollbackSmiFlash.c @@ -0,0 +1,160 @@ +//************************************************************************* +//************************************************************************* +//** ** +//** (C)Copyright 1985-2011, American Megatrends, Inc. ** +//** ** +//** All Rights Reserved. ** +//** ** +//** 5555 Oakbrook Parkway, Suite 200, Norcross, GA 30093 ** +//** ** +//** Phone: (770)-246-8600 ** +//** ** +//************************************************************************* +//************************************************************************* +//********************************************************************** +// $Header: /Alaska/SOURCE/Modules/TCG2/Common/TpmClearOnRollback/TpmClearOnRollbackSmiFlash.c 1 4/21/14 2:18p Fredericko $ +// +// $Revision: 1 $ +// +// $Date: 4/21/14 2:18p $ +//********************************************************************** +// Revision History +// ---------------- +// $Log: /Alaska/SOURCE/Modules/TCG2/Common/TpmClearOnRollback/TpmClearOnRollbackSmiFlash.c $ +// +// 1 4/21/14 2:18p Fredericko +// +// 1 10/08/13 12:06p Fredericko +// Initial Check-In for Tpm-Next module +// +// 1 7/10/13 5:57p Fredericko +// [TAG] EIP120969 +// [Category] New Feature +// [Description] TCG (TPM20) +//********************************************************************** +//<AMI_FHDR_START> +//--------------------------------------------------------------------------- +// Name: +// +// +// +//--------------------------------------------------------------------------- +//<AMI_FHDR_END> +#include "TpmClearOnRollback.h" +#include <Protocol/AmiPostMgr.h> + +CLEAR_TPM_ROLLBACK_PROTOCOL *PrivateProtocol; +EFI_SMM_SYSTEM_TABLE2 *mSmst; +static FW_VERSION Fid; + + +UINT8 SmiFlashClearTpmBeforeFlash (){ + return(ClearTpmBeforeFlash()); +} + +//********************************************************************** +//<AMI_PHDR_START> +// +// Procedure: InstallTpmClearProtocolInSmm +// +// Description: InstallTcgSmmFlash Protocol +// +// +// Input: IN EFI_HANDLE ImageHandle, +// IN EFI_SYSTEM_TABLE *SystemTable +// +// Output: EFI_STATUS +// +// Modified: +// +// Referrals: +// +// Notes: +//<AMI_PHDR_END> +//********************************************************************** +EFI_STATUS InstallTpmClearProtocolInSmm( + IN EFI_HANDLE ImageHandle, + IN EFI_SYSTEM_TABLE *SystemTable ) +{ + EFI_SMM_BASE2_PROTOCOL *SmmBase; + EFI_HANDLE Handle=NULL; + EFI_STATUS Status; + EFI_GUID TpmRollbackSmmGuid = \ + AMI_TPM_ROLLBACK_SMM_PROTOCOL_GUID; + + Status = pBS->LocateProtocol (&gEfiSmmBase2ProtocolGuid, NULL, &SmmBase); + if((EFI_ERROR(Status)) || (SmmBase == NULL)){ + return Status; + } + + Status = SmmBase->GetSmstLocation(SmmBase, &mSmst); + if(EFI_ERROR(Status)){ + return Status; + } + + Status = mSmst->SmmAllocatePool ( + EfiRuntimeServicesData, + sizeof (CLEAR_TPM_ON_ROLLBACK), + &PrivateProtocol + ); + + if((EFI_ERROR(Status)) || (PrivateProtocol == NULL)){ + return Status; + } + + TpmRecoveryGetFidFromFv(&Fid); + + PrivateProtocol->ClearTpmOnRollBack = (VOID *)&SmiFlashClearTpmBeforeFlash; + + Status = mSmst->SmmInstallProtocolInterface( &Handle, \ + &TpmRollbackSmmGuid, \ + EFI_NATIVE_INTERFACE, \ + PrivateProtocol ); + + return Status; +} + + + +//****************************************************** **************** +//<AMI_PHDR_START> +// +// Procedure: TpmClearRollBackSmmInit +// +// Description: Entry point for subcomponent +// +// Input: IN EFI_HANDLE ImageHandle, +// IN EFI_SYSTEM_TABLE *SystemTable +// +// Output: EFI_STATUS +// +// Modified: +// +// Referrals: +// +// Notes: +// +//<AMI_PHDR_END> +//********************************************************************** +EFI_STATUS TpmClearRollBackSmmInit( + IN EFI_HANDLE ImageHandle, + IN EFI_SYSTEM_TABLE *SystemTable ) +{ + InitAmiLib( ImageHandle, SystemTable ); + + return InitSmmHandler( ImageHandle, SystemTable, InstallTpmClearProtocolInSmm, NULL ); +} + +//************************************************************************* +//************************************************************************* +//** ** +//** (C)Copyright 1985-2010, American Megatrends, Inc. ** +//** ** +//** All Rights Reserved. ** +//** ** +//** 5555 Oakbrook Parkway, Suite 200, Norcross, GA 30093 ** +//** ** +//** Phone: (770)-246-8600 ** +//** ** +//************************************************************************* +//************************************************************************* |