vDriver Writer’s Guide for UEFI 2.3.1
Version 1.01 3/8/2012 iii
Contents
Revision History ...................................................................................................................... ii
Contents iii
1 Introduction ...................................................................................................... 1
1.1 Overview ................................................................................................ 1
1.1.1 Assumptions .............................................................................. 1
1.2 Organization of this document .................................................................. 2
1.3 Related information ................................................................................. 3
1.3.1 UEFI Specifications ..................................................................... 3
1.3.2 Industry Standard Bus Specifications ............................................ 3
1.3.3 Other specifications .................................................................... 4
1.3.4 EDK II and UDK2010 Development Kit .......................................... 5
1.4 Typographic conventions .......................................................................... 5
2 UEFI Driver Implementation Checklist .................................................................. 7
2.1 Design and implementation of UEFI drivers ................................................ 9
2.2 How to implement features in EDK II ........................................................ 12
3 Foundation....................................................................................................... 15
3.1 Basic programming model ....................................................................... 15
3.2 Objects managed by UEFI-based firmware ................................................ 16
3.3 UEFI system table .................................................................................. 17
3.4 Handle database .................................................................................... 18
3.5 GUIDs ................................................................................................... 22
3.6 Protocols and handles ............................................................................. 23
3.6.1 Protocols are produced and consumed ......................................... 24
3.6.2 Protocol interface structure ......................................................... 25
3.6.3 Protocols provided in addition to the UEFI Specification .................. 26
3.6.4 Multiple protocol instances.......................................................... 27
3.6.5 Tag GUID ................................................................................. 27
3.7 UEFI images .......................................................................................... 27
3.7.1 Applications .............................................................................. 31
3.7.2 Drivers ..................................................................................... 31
3.8 Events and task priority levels ................................................................. 32
3.8.1 Defining priority ........................................................................ 35
3.8.2 Creating locks ........................................................................... 35
3.8.3 Using callbacks ......................................................................... 35
3.9 UEFI device paths .................................................................................. 36
3.9.1 How drivers use device paths ...................................................... 39
3.9.2 IPF Considerations for device path data structures ......................... 40
3.9.3 Environment variables ............................................................... 40
3.10 UEFI driver model .................................................................................. 41
3.10.1 Device driver ............................................................................ 42
3.10.2 Bus driver ................................................................................ 44
3.10.3 Hybrid driver ............................................................................ 46
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2012-06-18
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deng_5552013-10-28写的挺好 很有效！！！！！！！！！！
