mirror of https://github.com/acidanthera/audk.git
53 lines
1.2 KiB
C
53 lines
1.2 KiB
C
/** @file
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Execute 32-bit code in Protected Mode.
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Copyright (c) 2014 - 2016, Intel Corporation. All rights reserved.<BR>
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SPDX-License-Identifier: BSD-2-Clause-Patent
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**/
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#include <Uefi.h>
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#include <FspEas.h>
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/**
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FSP API functions.
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@param[in] Param1 The first parameter to pass to 32bit code.
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@param[in] Param2 The second parameter to pass to 32bit code.
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@return EFI_STATUS.
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**/
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typedef
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EFI_STATUS
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(EFIAPI *FSP_FUNCTION) (
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IN VOID *Param1,
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IN VOID *Param2
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);
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/**
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Wrapper for a thunk to transition from long mode to compatibility mode to execute 32-bit code and then transit back to
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long mode.
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@param[in] Function The 32bit code entry to be executed.
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@param[in] Param1 The first parameter to pass to 32bit code.
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@param[in] Param2 The second parameter to pass to 32bit code.
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@return EFI_STATUS.
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**/
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EFI_STATUS
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Execute32BitCode (
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IN UINT64 Function,
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IN UINT64 Param1,
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IN UINT64 Param2
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)
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{
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FSP_FUNCTION EntryFunc;
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EFI_STATUS Status;
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EntryFunc = (FSP_FUNCTION) (UINTN) (Function);
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Status = EntryFunc ((VOID *)(UINTN)Param1, (VOID *)(UINTN)Param2);
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return Status;
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}
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