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33 lines
818 B
33 lines
818 B
/** @file
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SpeculationBarrier() function for IA32 and x64.
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Copyright (C) 2018, Intel Corporation. All rights reserved.<BR>
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This program and the accompanying materials are licensed and made available
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under the terms and conditions of the BSD License which accompanies this
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distribution. The full text of the license may be found at
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http://opensource.org/licenses/bsd-license.php.
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THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, WITHOUT
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WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
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**/
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#include <Library/BaseLib.h>
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/**
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Uses as a barrier to stop speculative execution.
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Ensures that no later instruction will execute speculatively, until all prior
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instructions have completed.
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**/
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VOID
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EFIAPI
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SpeculationBarrier (
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VOID
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)
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{
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AsmLfence ();
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}
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