/** @file | |
Execute 32-bit code in Protected Mode. | |
Copyright (c) 2014 - 2022, Intel Corporation. All rights reserved.<BR> | |
SPDX-License-Identifier: BSD-2-Clause-Patent | |
**/ | |
#include <Uefi.h> | |
#include <FspEas.h> | |
/** | |
FSP API functions. | |
@param[in] Param1 The first parameter to pass to 32bit code. | |
@param[in] Param2 The second parameter to pass to 32bit code. | |
@return EFI_STATUS. | |
**/ | |
typedef | |
EFI_STATUS | |
(EFIAPI *FSP_FUNCTION)( | |
IN VOID *Param1, | |
IN VOID *Param2 | |
); | |
/** | |
Wrapper for a thunk to transition from long mode to compatibility mode to execute 32-bit code and then transit back to | |
long mode. | |
@param[in] Function The 32bit code entry to be executed. | |
@param[in] Param1 The first parameter to pass to 32bit code. | |
@param[in] Param2 The second parameter to pass to 32bit code. | |
@return EFI_STATUS. | |
**/ | |
EFI_STATUS | |
Execute32BitCode ( | |
IN UINT64 Function, | |
IN UINT64 Param1, | |
IN UINT64 Param2 | |
) | |
{ | |
FSP_FUNCTION EntryFunc; | |
EFI_STATUS Status; | |
EntryFunc = (FSP_FUNCTION)(UINTN)(Function); | |
Status = EntryFunc ((VOID *)(UINTN)Param1, (VOID *)(UINTN)Param2); | |
return Status; | |
} | |
/** | |
Wrapper for a thunk to transition from compatibility mode to long mode to execute 64-bit code and then transit back to | |
compatibility mode. | |
@param[in] Function The 64bit code entry to be executed. | |
@param[in] Param1 The first parameter to pass to 64bit code. | |
@param[in] Param2 The second parameter to pass to 64bit code. | |
@return EFI_STATUS. | |
**/ | |
EFI_STATUS | |
Execute64BitCode ( | |
IN UINT64 Function, | |
IN UINT64 Param1, | |
IN UINT64 Param2 | |
) | |
{ | |
return EFI_UNSUPPORTED; | |
} |