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/** @file
Execute 32-bit code in Long Mode
Provide a thunk function to transition from long mode to compatibility mode to execute 32-bit code and then transit
back to long mode.
Copyright (c) 2010, Intel Corporation. All rights reserved.<BR>
This program and the accompanying materials
are licensed and made available under the terms and conditions of the BSD License
which accompanies this distribution. The full text of the license may be found at
http://opensource.org/licenses/bsd-license.php
THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
**/
#include "ScriptSave.h"
/**
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 Function The 32bit code entry to be executed.
@param Param1 The first parameter to pass to 32bit code
@param Param2 The second parameter to pass to 32bit code
@retval EFI_SUCCESS Execute 32bit code successfully.
@retval other Something wrong when execute the 32bit code
**/
EFI_STATUS
Execute32BitCode (
IN UINT64 Function,
IN UINT64 Param1,
IN UINT64 Param2
)
{
DISPATCH_ENTRYPOINT_FUNC EntryFunc;
EFI_STATUS Status;
EntryFunc = (DISPATCH_ENTRYPOINT_FUNC) (UINTN) (Function);
Status = EntryFunc ((VOID *)(UINTN)Param1, (VOID *)(UINTN)Param2);
return Status;
}
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