/** @file | |
Copyright (c) 2016 - 2020, Intel Corporation. All rights reserved.<BR> | |
SPDX-License-Identifier: BSD-2-Clause-Patent | |
**/ | |
#include "SecFsp.h" | |
/** | |
This function check the FSP API calling condition. | |
@param[in] ApiIdx Internal index of the FSP API. | |
@param[in] ApiParam Parameter of the FSP API. | |
**/ | |
EFI_STATUS | |
EFIAPI | |
FspApiCallingCheck ( | |
IN UINT8 ApiIdx, | |
IN VOID *ApiParam | |
) | |
{ | |
EFI_STATUS Status; | |
FSP_GLOBAL_DATA *FspData; | |
Status = EFI_SUCCESS; | |
FspData = GetFspGlobalDataPointer (); | |
if (ApiIdx == NotifyPhaseApiIndex) { | |
// | |
// NotifyPhase check | |
// | |
if ((FspData == NULL) || ((UINT32)FspData == 0xFFFFFFFF)) { | |
Status = EFI_UNSUPPORTED; | |
} else { | |
if (FspData->Signature != FSP_GLOBAL_DATA_SIGNATURE) { | |
Status = EFI_UNSUPPORTED; | |
} | |
} | |
} else if (ApiIdx == FspMemoryInitApiIndex) { | |
// | |
// FspMemoryInit check | |
// | |
if ((UINT32)FspData != 0xFFFFFFFF) { | |
Status = EFI_UNSUPPORTED; | |
} else if (EFI_ERROR (FspUpdSignatureCheck (ApiIdx, ApiParam))) { | |
Status = EFI_INVALID_PARAMETER; | |
} | |
} else if (ApiIdx == TempRamExitApiIndex) { | |
// | |
// TempRamExit check | |
// | |
if ((FspData == NULL) || ((UINT32)FspData == 0xFFFFFFFF)) { | |
Status = EFI_UNSUPPORTED; | |
} else { | |
if (FspData->Signature != FSP_GLOBAL_DATA_SIGNATURE) { | |
Status = EFI_UNSUPPORTED; | |
} | |
} | |
} else if ((ApiIdx == FspSiliconInitApiIndex) || (ApiIdx == FspMultiPhaseSiInitApiIndex)) { | |
// | |
// FspSiliconInit check | |
// | |
if ((FspData == NULL) || ((UINT32)FspData == 0xFFFFFFFF)) { | |
Status = EFI_UNSUPPORTED; | |
} else { | |
if (FspData->Signature != FSP_GLOBAL_DATA_SIGNATURE) { | |
Status = EFI_UNSUPPORTED; | |
} else if (EFI_ERROR (FspUpdSignatureCheck (FspSiliconInitApiIndex, ApiParam))) { | |
Status = EFI_INVALID_PARAMETER; | |
} | |
} | |
} else { | |
Status = EFI_UNSUPPORTED; | |
} | |
if (!EFI_ERROR (Status)) { | |
if ((ApiIdx != FspMemoryInitApiIndex)) { | |
// | |
// For FspMemoryInit, the global data is not valid yet | |
// The API index will be updated by SecCore after the global data | |
// is initialized | |
// | |
SetFspApiCallingIndex (ApiIdx); | |
} | |
} | |
return Status; | |
} |