audk/MdePkg/Include/Library/SmmLib.h

81 lines
1.6 KiB
C

/** @file
Library class name: SmmLib
SMM Library Services that abstracts both S/W SMI generation and detection.
Copyright (c) 2007 - 2018, Intel Corporation. All rights reserved.<BR>
SPDX-License-Identifier: BSD-2-Clause-Patent
**/
#ifndef __SMM_LIB_H__
#define __SMM_LIB_H__
/**
Triggers an SMI at boot time.
This function triggers a software SMM interrupt at boot time.
**/
VOID
EFIAPI
TriggerBootServiceSoftwareSmi (
VOID
);
/**
Triggers an SMI at run time.
This function triggers a software SMM interrupt at run time.
**/
VOID
EFIAPI
TriggerRuntimeSoftwareSmi (
VOID
);
/**
Test if a boot time software SMI happened.
This function tests if a software SMM interrupt happened. If a software SMM interrupt happened and
it was triggered at boot time, it returns TRUE. Otherwise, it returns FALSE.
@retval TRUE A software SMI triggered at boot time happened.
@retval FALSE No software SMI happened, or the software SMI was triggered at run time.
**/
BOOLEAN
EFIAPI
IsBootServiceSoftwareSmi (
VOID
);
/**
Test if a run time software SMI happened.
This function tests if a software SMM interrupt happened. If a software SMM interrupt happened and
it was triggered at run time, it returns TRUE. Otherwise, it returns FALSE.
@retval TRUE A software SMI triggered at run time happened.
@retval FALSE No software SMI happened or the software SMI was triggered at boot time.
**/
BOOLEAN
EFIAPI
IsRuntimeSoftwareSmi (
VOID
);
/**
Clear APM SMI Status Bit; Set the EOS bit.
**/
VOID
EFIAPI
ClearSmi (
VOID
);
#endif