ACPI 5.0 Errata: Windows 2000电源与配置管理

需积分: 9 47 浏览量更新于2024-07-17 收藏 4.16MB PDF 举报

"ACPI 5 Errata 是一份由 Hewlett-Packard Corporation、Intel Corporation、Microsoft Corporation、Phoenix Technologies Ltd. 和 Toshiba Corporation 共同编写的关于 Advanced Configuration and Power Interface 规范的修订版，旨在纠正之前版本中的错误。这份文档是 ACPI 规范的第五版，日期为2013年11月13日，版本号为Errata A。它详细列出了在 ACPI 5.0 实现过程中可能遇到的问题和解决方案，以确保操作系统、BIOS和硬件之间的兼容性和高效能电源管理。" ACPI，即高级配置和电源管理接口，是一个开放标准，用于定义计算机硬件的电源管理以及配置方式。这个接口允许操作系统如Windows 2000更深入地参与到系统的电源管理和设备配置中，提高了系统性能和能效。通过ACPI，计算机可以智能地进入不同的电源状态，如休眠、睡眠或完全关闭，从而节约能源并延长电池寿命。在ACPI 5.0中，重要的更新可能包括对新技术的支持，比如更先进的处理器电源管理技术，以及对多核心处理器、USB设备、图形处理器等硬件的优化。此外，可能还涉及了错误修复，以消除可能导致系统不稳定或者硬件不兼容的问题。例如，可能会修正某些特定硬件设备在不同电源状态下无法正常工作的错误，或者解决某些设备在系统启动或恢复时的初始化问题。 Errata文档通常包含了对原始规范的修正和澄清，这可能是由于在实际应用中发现的问题或者是对某些条目的误解。在"Revision 5.0 Errata A"中，开发者和制造商可以找到详细的错误列表和建议的解决方案，帮助他们更新自己的产品以符合最新的ACPI标准，提高产品的质量和兼容性。尽管ACPI规范提供了许多知识产权的免责声明，但它仍然是硬件制造商和操作系统开发者的重要参考，因为它确保了跨平台的标准化，降低了开发成本，并提升了用户体验。对于那些希望了解如何正确实现ACPI功能的开发者，这份文档是不可或缺的资源，他们可以从中学习到如何避免潜在的问题，并提升其产品的电源管理性能。

x Hewlett-Packard/Intel/Microsoft/Phoenix/Toshiba

7.4 OSPM usage of _PTS, _TTS, and _WAK..................................................................... 379

8 

Processor Configuration and Control ......................................................381

8.1 Processor Power States ............................................................................................... 381

8.1.1 Processor Power State C0................................................................................ 383

8.1.2 Processor Power State C1................................................................................ 385

8.1.3 Processor Power State C2................................................................................ 385

8.1.4 Processor Power State C3................................................................................ 385

8.1.5 Additional Processor Power States................................................................... 386

8.2 Flushing Caches ........................................................................................................... 387

8.3 Power, Performance, and Throttling State Dependencies............................................ 388

8.4 Declaring Processors................................................................................................. 389

8.4.1 _PDC (Processor Driver Capabilities)............................................................... 389

8.4.2 Processor Power State Control......................................................................... 391

8.4.3 Processor Throttling Controls............................................................................ 396

8.4.4 Processor Performance Control........................................................................ 403

8.4.5 Collaborative Processor Performance Control.................................................. 410

8.4.6 _PPE (Polling for Platform Errors) .................................................................... 423

8.5 Processor Aggregator Device....................................................................................... 423

8.5.1 Logical Processor Idling.................................................................................... 424

8.5.2 OSPM _OST Evaluation ................................................................................... 425

9 

ACPI-Defined Devices and Device-Specific Objects.............................. 427

9.1 \_SI System Indicators.................................................................................................. 427

9.1.1 _SST (System Status)....................................................................................... 427

9.1.2 _MSG (Message).............................................................................................. 427

9.1.3 _BLT (Battery Level Threshold) ........................................................................ 428

9.2 Ambient Light Sensor Device........................................................................................ 428

9.2.1 Overview ........................................................................................................... 429

9.2.2 _ALI (Ambient Light Illuminance) ...................................................................... 429

9.2.3 _ALT (Ambient Light Temperature)................................................................... 430

9.2.4 _ALC (Ambient Light Color Chromaticity) ......................................................... 430

9.2.5 _ALR (Ambient Light Response)....................................................................... 431

9.2.6 _ALP (Ambient Light Polling) ............................................................................ 435

9.2.7 Ambient Light Sensor Events............................................................................ 435

9.2.8 Relationship to Backlight Control Methods ....................................................... 436

9.3 Battery Device............................................................................................................... 436

9.4 Control Method Lid Device............................................................................................ 436

9.4.1 _LID................................................................................................................... 436

9.5 Control Method Power and Sleep Button Devices........................................................ 437

9.6 Embedded Controller Device........................................................................................ 437

9.7 Generic Container Device............................................................................................. 437

9.8 ATA Controller Devices................................................................................................. 438

9.8.1 Objects for Both ATA and SATA Controllers..................................................... 438

9.8.2 IDE Controller Device........................................................................................ 439

9.8.3 Serial ATA (SATA) Controller Device................................................................ 442

Advanced Configuration and Power Interface Specification

Hewlett-Packard/Intel/Microsoft/Phoenix/Toshiba xi

9.9 Floppy Controller Device Objects ................................................................................. 444

9.9.1 _FDE (Floppy Disk Enumerate) ........................................................................ 444

9.9.2 _FDI (Floppy Disk Information) ......................................................................... 445

9.9.3 _FDM (Floppy Disk Drive Mode)....................................................................... 446

9.10 GPE Block Device....................................................................................................... 446

9.10.1 Matching Control Methods for Events in a GPE Block Device........................ 447

9.11 Module Device ............................................................................................................ 448

9.12 Memory Devices ......................................................................................................... 451

9.12.1 Address Decoding........................................................................................... 451

9.12.2 Memory Bandwidth Monitoring and Reporting................................................ 451

9.12.3 _OSC Definition for Memory Device ............................................................... 453

9.12.4 Example: Memory Device ............................................................................... 454

9.13 _UPC (USB Port Capabilities) .................................................................................... 454

9.13.1 USB 2.0 Host Controllers and _UPC and _PLD ............................................. 458

9.14 Device Object Name Collision .................................................................................... 460

9.14.1 _DSM (Device Specific Method) ..................................................................... 460

9.15 PC/AT RTC/CMOS Devices ....................................................................................... 463

9.15.1 PC/AT-compatible RTC/CMOS Devices (PNP0B00)...................................... 463

9.15.3 Dallas Semiconductor-compatible RTC/CMOS Devices (PNP0B02) ............. 465

9.16 User Presence Detection Device................................................................................ 465

9.16.1 _UPD (User Presence Detect)........................................................................ 466

9.16.2 _UPP (User Presence Polling)........................................................................ 466

9.16.3 User Presence Sensor Events........................................................................ 467

9.17 I/O APIC Device.......................................................................................................... 467

9.18 Time and Alarm Device............................................................................................... 467

9.18.2 _GCP (Get Capability) .................................................................................... 471

9.18.3 _GRT (Get Real Time).................................................................................... 472

9.18.4 _SRT (Set Real Time)..................................................................................... 472

9.18.5 _GWS (Get Wake alarm status)...................................................................... 474

9.18.6 _CWS (Clear Wake alarm status)................................................................... 474

9.18.7 _STP (Set Expired Timer Wake Policy) .......................................................... 474

9.18.8 _STV (Set Timer Value).................................................................................. 475

9.18.9 _TIP (Expired Timer Wake Policy).................................................................. 475

9.18.10 _TIV (Timer Values)...................................................................................... 476

9.18.11 ACPI Wakeup Alarm Events ......................................................................... 476

9.18.12 Relationship to Real Time Clock Alarm ....................................................... 476

9.18.13 Time and Alarm device as a replacement to the RTC .................................. 476

9.18.14 Relationship to UEFI time source.................................................................. 476

9.18.15 Example ASL code ....................................................................................... 477

10 

Power Source and Power Meter Devices .................................................483

10.1 Smart Battery Subsystems ......................................................................................... 483

10.1.1 ACPI Smart Battery Status Change Notification Requirements...................... 486

10.1.2 Smart Battery Objects..................................................................................... 487

10.1.3 _SBS (Smart Battery Subsystem) .................................................................. 488

10.2 Control Method Batteries ............................................................................................ 490

xii Hewlett-Packard/Intel/Microsoft/Phoenix/Toshiba

10.2.1 Battery Events................................................................................................. 491

10.2.2 Battery Control Methods ................................................................................. 491

10.3 AC Adapters and Power Source Objects.................................................................... 504

10.3.1 _PSR (Power Source)..................................................................................... 504

10.3.2 _PCL (Power Consumer List) ......................................................................... 505

10.3.3 _PIF (Power Source Information).................................................................... 505

10.3.4 _PRL (Power Source Redundancy List) ......................................................... 506

10.4 Power Meters.............................................................................................................. 506

10.4.1 _PMC (Power Meter Capabilities)................................................................... 507

10.4.2 _PTP (Power Trip Points) ............................................................................... 508

10.4.3 _PMM (Power Meter Measurement)............................................................... 509

10.4.4 _PAI (Power Averaging Interval)..................................................................... 509

10.4.5 _GAI (Get Averaging Interval)......................................................................... 510

10.4.6 _SHL (Set Hardware Limit) ............................................................................. 510

10.4.7 _GHL (Get Hardware Limit) ............................................................................ 511

10.4.8 _PMD (Power Metered Devices)..................................................................... 511

10.5 Example: Power Source and Power Meter Namespace............................................ 511

11 

Thermal Management.................................................................................513

11.1 Thermal Control .......................................................................................................... 513

11.1.1 Active, Passive, and Critical Policies .............................................................. 514

11.1.2 Dynamically Changing Cooling Temperature Trip Points ............................... 515

11.1.3 Detecting Temperature Changes.................................................................... 516

11.1.4 Active Cooling ................................................................................................ 518

11.1.5 Passive Cooling .............................................................................................. 519

11.1.6 Critical Shutdown ............................................................................................ 520

11.2 Cooling Preferences .................................................................................................. 521

11.2.1 Evaluating Thermal Device Lists..................................................................... 522

11.2.2 Evaluating Device Thermal Relationship Information ..................................... 523

11.3 Fan Device.................................................................................................................. 523

11.3.1 Fan Objects..................................................................................................... 524

11.4 Thermal Objects.......................................................................................................... 527

11.4.1 _ACx (Active Cooling)..................................................................................... 528

11.4.2 _ALx (Active List) ............................................................................................ 528

11.4.3 _ART (Active Cooling Relationship Table)...................................................... 529

11.4.4 _CRT (Critical Temperature)........................................................................... 532

11.4.5 _DTI (Device Temperature Indication)............................................................ 532

11.4.6 _HOT (Hot Temperature)................................................................................ 532

11.4.7 _NTT (Notification Temperature Threshold) ................................................... 533

11.4.8 _PSL (Passive List)......................................................................................... 533

11.4.9 _PSV (Passive)............................................................................................... 533

11.4.10 _RTV (Relative Temperature Values)........................................................... 534

11.4.11 _SCP (Set Cooling Policy) ............................................................................ 534

11.4.12 _TC1 (Thermal Constant 1) .......................................................................... 537

11.4.13 _TC2 (Thermal Constant 2) .......................................................................... 537

11.4.14 _TMP (Temperature)..................................................................................... 538

Advanced Configuration and Power Interface Specification

Hewlett-Packard/Intel/Microsoft/Phoenix/Toshiba xiii

11.4.15 _TPT (Trip Point Temperature)..................................................................... 538

11.4.16 _TRT (Thermal Relationship Table).............................................................. 538

11.4.17 _TSP (Thermal Sampling Period) ................................................................. 539

11.4.18 _TST (Temperature Sensor Threshold)........................................................ 539

11.4.19 _TZD (Thermal Zone Devices)...................................................................... 540

11.4.20 _TZM (Thermal Zone Member)..................................................................... 540

11.4.21 _TZP (Thermal Zone Polling)........................................................................ 540

11.5 Native OS Device Driver Thermal Interfaces.............................................................. 541

11.6 Thermal Zone Interface Requirements ....................................................................... 542

11.7 Thermal Zone Examples............................................................................................. 542

11.7.1 Example: The Basic Thermal Zone................................................................. 542

11.7.2 Example: Multiple-Speed Fans ....................................................................... 544

11.7.3 Example: Thermal Zone with Multiple Devices ............................................... 546

12 

ACPI Embedded Controller Interface Specification................................ 553

12.1 Embedded Controller Interface Description ................................................................ 553

12.2 Embedded Controller Register Descriptions............................................................... 557

12.2.1 Embedded Controller Status, EC_SC (R)....................................................... 557

12.2.2 Embedded Controller Command, EC_SC (W)................................................ 558

12.2.3 Embedded Controller Data, EC_DATA (R/W)................................................. 558

12.3 Embedded Controller Command Set .......................................................................... 558

12.3.1 Read Embedded Controller, RD_EC (0x80) ................................................... 559

12.3.2 Write Embedded Controller, WR_EC (0x81).................................................. 559

12.3.3 Burst Enable Embedded Controller, BE_EC (0x82)........................................ 559

12.3.4 Burst Disable Embedded Controller, BD_EC (0x83)....................................... 560

12.3.5 Query Embedded Controller, QR_EC (0x84).................................................. 560

12.4 SMBus Host Controller Notification Header (Optional), OS_SMB_EVT ..................... 560

12.5 Embedded Controller Firmware.................................................................................. 560

12.6 Interrupt Model............................................................................................................561

12.6.1 Event Interrupt Model...................................................................................... 561

12.6.2 Command Interrupt Model .............................................................................. 562

12.7 Embedded Controller Interfacing Algorithms .............................................................. 562

12.8 Embedded Controller Description Information ............................................................ 563

12.9 SMBus Host Controller Interface via Embedded Controller....................................... 563

12.9.1 Register Description........................................................................................ 564

12.9.2 Protocol Description........................................................................................ 568

12.10 SMBus Devices......................................................................................................... 573

12.10.1 SMBus Device Access Restrictions .............................................................. 574

12.10.2 SMBus Device Command Access Restriction .............................................. 574

12.11 Defining an Embedded Controller Device in ACPI Namespace ............................... 574

12.11.1 Example: EC Definition ASL Code ............................................................... 575

12.12 Defining an EC SMBus Host Controller in ACPI Namespace................................... 576

12.12.1 Example: EC SMBus Host Controller ASL-Code.......................................... 576

13 

ACPI System Management Bus Interface Specification.........................579

13.1 SMBus Overview ........................................................................................................ 579

xiv Hewlett-Packard/Intel/Microsoft/Phoenix/Toshiba

13.1.1 SMBus Slave Addresses................................................................................. 579

13.1.2 SMBus Protocols............................................................................................. 580

13.1.3 SMBus Status Codes...................................................................................... 581

13.1.4 SMBus Command Values............................................................................... 581

13.2 Accessing the SMBus from ASL Code ....................................................................... 581

13.2.1 Declaring SMBus Host Controller Objects ...................................................... 581

13.2.2 Declaring SMBus Devices............................................................................... 582

13.2.3 Declaring SMBus Operation Regions ............................................................. 582

13.2.4 Declaring SMBus Fields.................................................................................. 584

13.2.5 Declaring and Using an SMBus Data Buffer................................................... 586

13.3 Using the SMBus Protocols ........................................................................................ 587

13.3.1 Read/Write Quick (SMBQuick)........................................................................ 587

13.3.2 Send/Receive Byte (SMBSendReceive)......................................................... 588

13.3.3 Read/Write Byte (SMBByte)............................................................................ 589

13.3.4 Read/Write Word (SMBWord)......................................................................... 590

13.3.5 Read/Write Block (SMBBlock) ........................................................................ 590

13.3.6 Word Process Call (SMBProcessCall)............................................................ 591

13.3.7 Block Process Call (SMBBlockProcessCall)................................................... 592

14 

Platform Communications Channel (PCC)...............................................593

14.1 Platform Communications Channel Table .................................................................. 593

14.1.1 Platform Communications Channel Global Flags ........................................... 594

14.1.2 Platform Communications Channel Subspace Structures .............................. 594

14.1.3 Generic Communications Subspace Structure (type 0).................................. 594

14.2 Generic Communications Channel Shared Memory Region ...................................... 595

14.2.1 Generic Communications Channel Command Field....................................... 595

14.2.2 Generic Communications Channel Status Field ............................................. 596

14.3 Doorbell Protocol ........................................................................................................ 596

14.4 Platform Notification.................................................................................................... 597

14.5 Referencing the PCC address space.......................................................................... 597

15 

System Address Map Interfaces ...............................................................599

15.1 INT 15H, E820H - Query System Address Map ......................................................... 600

15.2 E820 Assumptions and Limitations............................................................................. 602

15.3 UEFI GetMemoryMap() Boot Services Function........................................................ 602

15.4 UEFI Assumptions and Limitations............................................................................ 604

15.5 Example Address Map................................................................................................ 604

15.6 Example: Operating System Usage............................................................................ 605

16 

Waking and Sleeping .................................................................................607

16.1 Sleeping States........................................................................................................... 609

16.1.1 S1 Sleeping State ........................................................................................... 611

16.1.2 S2 Sleeping State ........................................................................................... 612

16.1.3 S3 Sleeping State ........................................................................................... 612

16.1.4 S4 Sleeping State ........................................................................................... 613

剩余955页未读，继续阅读

day_dreaming

粉丝: 1
资源: 1

ACPI 5.0 Errata: Windows 2000电源与配置管理

ACPI6.0 Errata

ACPI规范6.2 Errata A英文原版[September 2017]

ACPI规范20201006Release 6.3 Errata A

ACPI IGD OPRegion

ACPI 相关基础知识

ACPI 6.2 spec 修订A

ACPI-6.2A intel

ACPI spec z最新下载

ACPI及UEFI相关规范最新英文原版（截至2014/11/13）

ACPI规范详解与BIOS修改指南

最新资源