MdeModulePkg/Universal/Variable/RuntimeDxe/SpeculationBarrierSmm.c

   1 /** @file
   2   Barrier to stop speculative execution (SMM version).
   3
   4 Copyright (c) 2018, Intel Corporation. All rights reserved.<BR>
   5 SPDX-License-Identifier: BSD-2-Clause-Patent
   6
   7 **/
   8
   9 #include <Library/BaseLib.h>
  10 #include "Variable.h"
  11
  12 /**
  13   This service is consumed by the variable modules to place a barrier to stop
  14   speculative execution.
  15
  16   Ensures that no later instruction will execute speculatively, until all prior
  17   instructions have completed.
  18
  19 **/
  20 VOID
  21 VariableSpeculationBarrier (
  22   VOID
  23   )
  24 {
  25   SpeculationBarrier ();
  26 }