audk/MdePkg/Library/SmmLibNull/SmmLibNull.c

98 lines
1.7 KiB
C

/** @file
NULL instance of SMM Library.
Copyright (c) 2009 - 2018, Intel Corporation. All rights reserved.<BR>
SPDX-License-Identifier: BSD-2-Clause-Patent
**/
#include <Base.h>
#include <Library/SmmLib.h>
/**
Triggers an SMI at boot time.
This function triggers a software SMM interrupt at boot time.
**/
VOID
EFIAPI
TriggerBootServiceSoftwareSmi (
VOID
)
{
return;
}
/**
Triggers an SMI at run time.
This function triggers a software SMM interrupt at run time.
**/
VOID
EFIAPI
TriggerRuntimeSoftwareSmi (
VOID
)
{
return;
}
/**
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
)
{
return FALSE;
}
/**
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
)
{
return FALSE;
}
/**
Clear APM SMI Status Bit; Set the EOS bit.
**/
VOID
EFIAPI
ClearSmi (
VOID
)
{
return;
}