/** @file
  CpuSleep function for Ia32/X64 GCC.
  Copyright (c) 2006 - 2008, Intel Corporation. All rights reserved.
  Portions copyright (c) 2008 - 2009, Apple Inc. All rights reserved.
  SPDX-License-Identifier: BSD-2-Clause-Patent
**/
/**
  Places the CPU in a sleep state until an interrupt is received.
  Places the CPU in a sleep state until an interrupt is received. If interrupts
  are disabled prior to calling this function, then the CPU will be placed in a
  sleep state indefinitely.
**/
VOID
EFIAPI
CpuSleep (
  VOID
  )
{
  __asm__ __volatile__ ("hlt"::: "memory");
}