audk/MdePkg/Library/SmmLibNull/SmmLibNull.c

/** @file
  NULL instance of SMM Library.

  Copyright (c) 2009 - 2018, 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 <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;
}