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cf683fed | 1 | /** @file\r |
2 | CpuSleep function for Ia32/X64 GCC.\r | |
3 | \r | |
c9b34b8c HT |
4 | Copyright (c) 2006 - 2008, Intel Corporation. All rights reserved.<BR>\r |
5 | Portions copyright (c) 2008 - 2009, Apple Inc. All rights reserved.<BR>\r | |
6 | This program and the accompanying materials\r | |
cf683fed | 7 | are licensed and made available under the terms and conditions of the BSD License\r |
8 | which accompanies this distribution. The full text of the license may be found at\r | |
9 | http://opensource.org/licenses/bsd-license.php\r | |
10 | \r | |
11 | THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r | |
12 | WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r | |
13 | \r | |
14 | **/\r | |
15 | \r | |
16 | \r | |
17 | /**\r | |
18 | Places the CPU in a sleep state until an interrupt is received.\r | |
19 | \r | |
20 | Places the CPU in a sleep state until an interrupt is received. If interrupts\r | |
21 | are disabled prior to calling this function, then the CPU will be placed in a\r | |
22 | sleep state indefinitely.\r | |
23 | \r | |
24 | **/\r | |
25 | VOID\r | |
26 | EFIAPI\r | |
27 | CpuSleep (\r | |
28 | VOID\r | |
29 | )\r | |
30 | {\r | |
31 | __asm__ __volatile__ ("hlt"::: "memory");\r | |
32 | }\r | |
33 | \r |