MdeModulePkg/Universal/Variable/RuntimeDxe/SpeculationBarrierDxe.c

   1 /** @file
   2   Barrier to stop speculative execution (DXE 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 "Variable.h"
  10
  11 /**
  12   This service is consumed by the variable modules to place a barrier to stop
  13   speculative execution.
  14
  15   Ensures that no later instruction will execute speculatively, until all prior
  16   instructions have completed.
  17
  18 **/
  19 VOID
  20 VariableSpeculationBarrier (
  21   VOID
  22   )
  23 {
  24   //
  25   // Do nothing.
  26   //
  27 }