IntelFsp2Pkg/FspSecCore: Add FSP-I API for SMM support.

[mirror_edk2.git] / IntelFsp2Pkg / FspSecCore / SecFspApiChk.c

/** @file\r
\r
  Copyright (c) 2016 - 2022, Intel Corporation. All rights reserved.<BR>\r
  SPDX-License-Identifier: BSD-2-Clause-Patent\r
\r
**/\r
\r
#include "SecFsp.h"\r
\r
/**\r
  This function check the FSP API calling condition.\r
\r
  @param[in]  ApiIdx           Internal index of the FSP API.\r
  @param[in]  ApiParam         Parameter of the FSP API.\r
\r
**/\r
EFI_STATUS\r
EFIAPI\r
FspApiCallingCheck (\r
  IN UINT8  ApiIdx,\r
  IN VOID   *ApiParam\r
  )\r
{\r
  EFI_STATUS       Status;\r
  FSP_GLOBAL_DATA  *FspData;\r
\r
  Status  = EFI_SUCCESS;\r
  FspData = GetFspGlobalDataPointer ();\r
\r
  if (ApiIdx == NotifyPhaseApiIndex) {\r
    //\r
    // NotifyPhase check\r
    //\r
    if ((FspData == NULL) || ((UINTN)FspData == MAX_ADDRESS) || ((UINTN)FspData == MAX_UINT32)) {\r
      Status = EFI_UNSUPPORTED;\r
    } else {\r
      if (FspData->Signature != FSP_GLOBAL_DATA_SIGNATURE) {\r
        Status = EFI_UNSUPPORTED;\r
      }\r
    }\r
  } else if (ApiIdx == FspMemoryInitApiIndex) {\r
    //\r
    // FspMemoryInit check\r
    //\r
    if (((UINTN)FspData != MAX_ADDRESS) && ((UINTN)FspData != MAX_UINT32)) {\r
      Status = EFI_UNSUPPORTED;\r
    } else if (EFI_ERROR (FspUpdSignatureCheck (ApiIdx, ApiParam))) {\r
      Status = EFI_INVALID_PARAMETER;\r
    }\r
  } else if (ApiIdx == TempRamExitApiIndex) {\r
    //\r
    // TempRamExit check\r
    //\r
    if ((FspData == NULL) || ((UINTN)FspData == MAX_ADDRESS) || ((UINTN)FspData == MAX_UINT32)) {\r
      Status = EFI_UNSUPPORTED;\r
    } else {\r
      if (FspData->Signature != FSP_GLOBAL_DATA_SIGNATURE) {\r
        Status = EFI_UNSUPPORTED;\r
      }\r
    }\r
  } else if ((ApiIdx == FspSiliconInitApiIndex) || (ApiIdx == FspMultiPhaseSiInitApiIndex)) {\r
    //\r
    // FspSiliconInit check\r
    //\r
    if ((FspData == NULL) || ((UINTN)FspData == MAX_ADDRESS) || ((UINTN)FspData == MAX_UINT32)) {\r
      Status = EFI_UNSUPPORTED;\r
    } else {\r
      if (FspData->Signature != FSP_GLOBAL_DATA_SIGNATURE) {\r
        Status = EFI_UNSUPPORTED;\r
      } else if (EFI_ERROR (FspUpdSignatureCheck (FspSiliconInitApiIndex, ApiParam))) {\r
        Status = EFI_INVALID_PARAMETER;\r
      }\r
    }\r
  } else if (ApiIdx == FspSmmInitApiIndex) {\r
    //\r
    // FspSmmInitApiIndex check\r
    //\r
    if ((FspData == NULL) || ((UINTN)FspData == MAX_ADDRESS) || ((UINTN)FspData == MAX_UINT32)) {\r
      Status = EFI_UNSUPPORTED;\r
    } else {\r
      if (FspData->Signature != FSP_GLOBAL_DATA_SIGNATURE) {\r
        Status = EFI_UNSUPPORTED;\r
      } else if (EFI_ERROR (FspUpdSignatureCheck (FspSmmInitApiIndex, ApiParam))) {\r
        Status = EFI_INVALID_PARAMETER;\r
      }\r
    }\r
  } else {\r
    Status = EFI_UNSUPPORTED;\r
  }\r
\r
  if (!EFI_ERROR (Status)) {\r
    if ((ApiIdx != FspMemoryInitApiIndex)) {\r
      //\r
      // For FspMemoryInit, the global data is not valid yet\r
      // The API index will be updated by SecCore after the global data\r
      // is initialized\r
      //\r
      SetFspApiCallingIndex (ApiIdx);\r
    }\r
  }\r
\r
  return Status;\r
}\r