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ACPI规范4.0版,是目前最新的版本(英文原版) Revision 4.0 June 16, 2009
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Advanced Configuration and
Power Interface Specification
Hewlett-Packard Corporation
Intel Corporation
Microsoft Corporation
Phoenix Technologies Ltd.
Toshiba Corporation
Revision 4.0
June 16, 2009
![](https://csdnimg.cn/release/download_crawler_static/1557397/bg2.jpg)
ii
Copyright © 1996-2009, Hewlett-Packard Corporation, Intel Corporation, Microsoft Corporation, Phoenix
Technologies Ltd., Toshiba Corporation
All rights reserved.
INTELLECTUAL PROPERTY DISCLAIMER
THIS SPECIFICATION IS PROVIDED “AS IS” WITH NO WARRANTIES WHATSOEVER INCLUDING
ANY WARRANTY OF MERCHANTABILITY, FITNESS FOR ANY PARTICULAR PURPOSE, OR ANY
WARRANTY OTHERWISE ARISING OUT OF ANY PROPOSAL, SPECIFICATION, OR SAMPLE.
NO LICENSE, EXPRESS OR IMPLIED, BY ESTOPPEL OR OTHERWISE, TO ANY INTELLECTUAL
PROPERTY RIGHTS IS GRANTED OR INTENDED HEREBY.
HP, INTEL, MICROSOFT, PHOENIX, AND TOSHIBA DISCLAIM ALL LIABILITY, INCLUDING
LIABILITY FOR INFRINGEMENT OF PROPRIETARY RIGHTS, RELATING TO IMPLEMENTATION
OF INFORMATION IN THIS SPECIFICATION. HP, INTEL, MICROSOFT, PHOENIX, AND TOSHIBA DO
NOT WARRANT OR REPRESENT THAT SUCH IMPLEMENTATION(S) WILL NOT INFRINGE SUCH
RIGHTS.
Microsoft, Win32, Windows, and Windows NT are registered trademarks of Microsoft Corporation.
All other product names are trademarks, registered trademarks, or service marks of their respective owners.
Hewlett-Packard/Intel/Microsoft/Phoenix/Toshiba
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iii
Revision Change Description
4.0
June 2009
Major specification revision. Clock Domains, x2APIC Support, Logical Processor Idling,
Corrected Platform Error Polling Table, Maximum System Characteristics Table, Power
Metering and Budgeting, IPMI Operation Region, USB3 Support in _PLD, Re-evaluation
of _PPC acknowledgement via _OST, Thermal Model Enhancements, _OSC at \_SB,
Wake Alarm Device, Battery Related Extensions, Memory Bandwidth Monitoring and
Reporting, ACPI Hardware Error Interfaces, D3hot.
3.0b
Oct. 2006
Errata corrected and clarifications added.
3.0a
Dec. 2005
Errata corrected and clarifications added.
3.0
Sept. 2004
Major specification revision. General configuration enhancements. Inter-Processor power,
performance, and throttling state dependency support added. Support for > 256 processors
added. NUMA Distancing support added. PCI Express support added. SATA support
added. Ambient Light Sensor and User Presence device support added. Thermal model
extended beyond processor-centric support.
2.0c
Aug.. 2003
Errata corrected and clarifications added.
2.0b
Oct. 2002
Errata corrected and clarifications added.
2.0a
Mar. 2002
Errata corrected and clarifications added. ACPI 2.0 Errata Document Revision 1.0 through
1.5 integrated.
ACPI 2.0 Errata
Doc. Rev. 1.5
Errata corrected and clarifications added.
ACPI 2.0 Errata
Doc. Rev. 1.4
Errata corrected and clarifications added.
ACPI 2.0 Errata
Doc. Rev. 1.3
Errata corrected and clarifications added.
ACPI 2.0 Errata
Doc. Rev. 1.2
Errata corrected and clarifications added.
ACPI 2.0 Errata
Doc. Rev. 1.1
Errata corrected and clarifications added.
ACPI 2.0 Errata
Doc. Rev. 1.0
Errata corrected and clarifications added.
2.0
Aug. 2000
Major specification revision. 64-bit addressing support added. Processor and device
performance state support added. Numerous multiprocessor workstation and server-related
enhancements. Consistency and readability enhancements throughout.
1.0b
Feb. 1999
Errata corrected and clarifications added. New interfaces added.
1.0a
Jul. 1998
Errata corrected and clarifications added. New interfaces added.
Hewlett-Packard/Intel/Microsoft/Phoenix/Toshiba
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iv
Hewlett-Packard/Intel/Microsoft/Phoenix/Toshiba
Revision Change Description
1.0
Dec. 1996
Original Release.
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v
Contents
1 INTRODUCTION................................................................................................................................... 19
1.1 Principal Goals ................................................................................................................................................... 19
1.2 Power Management Rationale .......................................................................................................................... 20
1.3 Legacy Support................................................................................................................................................... 21
1.4 OEM Implementation Strategy......................................................................................................................... 21
1.5 Power and Sleep Buttons................................................................................................................................... 21
1.6 ACPI Specification and the Structure Of ACPI .............................................................................................. 22
1.7 OS and Platform Compliance............................................................................................................................ 23
1.7.1 Platform Implementations of ACPI-defined Interfaces ................................................................................ 23
1.7.2 OSPM Implementations ............................................................................................................................... 26
1.7.3 OS Requirements.......................................................................................................................................... 27
1.8 Target Audience ................................................................................................................................................. 27
1.9 Document Organization..................................................................................................................................... 27
1.9.1 ACPI Introduction and Overview................................................................................................................. 28
1.9.2 Programming Models ................................................................................................................................... 28
1.9.3 Implementation Details................................................................................................................................. 28
1.9.4 Technical Reference ..................................................................................................................................... 29
1.10 Related Documents........................................................................................................................................... 29
2 DEFINITION OF TERMS ..................................................................................................................... 31
2.1 General ACPI Terminology .............................................................................................................................. 31
2.2 Global System State Definitions........................................................................................................................ 37
2.3 Device Power State Definitions.......................................................................................................................... 39
2.4 Sleeping State Definitions.................................................................................................................................. 40
2.5 Processor Power State Definitions .................................................................................................................... 40
2.6 Device and Processor Performance State Definitions...................................................................................... 41
3 ACPI OVERVIEW.................................................................................................................................. 43
3.1 System Power Management .............................................................................................................................. 44
3.2 Power States........................................................................................................................................................ 45
3.2.1 Power Button................................................................................................................................................ 46
3.2.2 Platform Power Management Characteristics............................................................................................... 46
3.3 Device Power Management ............................................................................................................................... 47
3.3.1 Power Management Standards ..................................................................................................................... 47
3.3.2 Device Power States..................................................................................................................................... 47
3.3.3 Device Power State Definitions.................................................................................................................... 48
3.4 Controlling Device Power.................................................................................................................................. 48
3.4.1 Getting Device Power Capabilities............................................................................................................... 48
3.4.2 Setting Device Power States......................................................................................................................... 48
3.4.3 Getting Device Power Status ........................................................................................................................ 49
3.4.4 Waking the Computer................................................................................................................................... 49
3.4.5 Example: Modem Device Power Management ............................................................................................ 51
3.5 Processor Power Management.......................................................................................................................... 54
3.6 Device and Processor Performance States ....................................................................................................... 54
3.7 Configuration and “Plug and Play”.................................................................................................................. 54
3.7.1 Device Configuration Example: Configuring the Modem............................................................................ 55
3.7.2 NUMA Nodes............................................................................................................................................... 55
3.8 System Events..................................................................................................................................................... 55
3.9 Battery Management.......................................................................................................................................... 56
3.9.1 Battery Communications .............................................................................................................................. 56
3.9.2 Battery Capacity ........................................................................................................................................... 57
3.9.3 Battery Gas Gauge........................................................................................................................................ 57
Hewlett-Packard/Intel/Microsoft/Phoenix/Toshiba
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