/** @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"); }