| 1 | /** @file
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| 2 | CpuSleep function for Ia32/X64 GCC.
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| 3 |
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| 4 | Copyright (c) 2006 - 2008, Intel Corporation. All rights reserved.<BR>
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| 5 | Portions copyright (c) 2008 - 2009, Apple Inc. All rights reserved.<BR>
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| 6 | SPDX-License-Identifier: BSD-2-Clause-Patent
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| 7 |
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| 8 | **/
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| 9 |
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| 10 | /**
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| 11 | Places the CPU in a sleep state until an interrupt is received.
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| 12 |
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| 13 | Places the CPU in a sleep state until an interrupt is received. If interrupts
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| 14 | are disabled prior to calling this function, then the CPU will be placed in a
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| 15 | sleep state indefinitely.
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| 16 |
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| 17 | **/
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| 18 | VOID
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| 19 | EFIAPI
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| 20 | CpuSleep (
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| 21 | VOID
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| 22 | )
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| 23 | {
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| 24 | __asm__ __volatile__ ("hlt"::: "memory");
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| 25 | }
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