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   源码介绍

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ARM® Generic Interrupt Controller Architecture Specification Architecture version 2.0(IHI0048B_b_gic_architecture_specification_v2).pdf

Contents
ARM Generic Interrupt Controller Architecture
Specification
Preface
About this specification ............................................................................................. viii
Using this specification ............................................................................................... ix
Conventions ................................................................................................................. x
Additional reading ....................................................................................................... xi
Feedback ................................................................................................................... xii
Chapter 1 Introduction
1.1 About the Generic Interrupt Controller architecture ............................................... 1-14
1.2 Security Extensions support .................................................................................. 1-16
1.3 Virtualization support ............................................................................................. 1-17
1.4 Terminology ........................................................................................................... 1-18
Chapter 2 GIC Partitioning
2.1 About GIC partitioning ............................................................................................ 2-22
2.2 The Distributor ....................................................................................................... 2-24
2.3 CPU interfaces ....................................................................................................... 2-26
Chapter 3 Interrupt Handling and Prioritization
3.1 About interrupt handling and prioritization ............................................................. 3-34
3.2 General handling of interrupts ................................................................................ 3-37
3.3 Interrupt prioritization ............................................................................................. 3-44
3.4 The effect of interrupt grouping on interrupt handling ............................................ 3-48
3.5 Interrupt grouping and interrupt prioritization ......................................................... 3-53
3.6 Additional features of the GIC Security Extensions ............................................... 3-59
3.7 Pseudocode details of interrupt handling and prioritization ................................... 3-61
Contents
vi Copyright © 2008, 2011, 2013 ARM. All rights reserved. ARM IHI 0048B.b
Non-Confidential ID072613
3.8 The effect of the Virtualization Extensions on interrupt handling ........................... 3-67
3.9 Example GIC usage models ................................................................................... 3-68
Chapter 4 Programmers’ Model
4.1 About the programmers’ model .............................................................................. 4-74
4.2 Effect of the GIC Security Extensions on the programmers’ model ....................... 4-80
4.3 Distributor register descriptions .............................................................................. 4-84
4.4 CPU interface register descriptions ...................................................................... 4-124
4.5 Preserving and restoring GIC state ...................................................................... 4-155
Chapter 5 GIC Support for Virtualization
5.1 About implementing a GIC in a system with processor virtualization ................... 5-158
5.2 Managing the GIC virtual CPU interface .............................................................. 5-160
5.3 GIC virtual interface control registers ................................................................... 5-167
5.4 The virtual CPU interface ..................................................................................... 5-178
5.5 GIC virtual CPU interface registers ...................................................................... 5-179
Appendix A Pseudocode Index
A.1 Index of pseudocode functions ............................................................................ A-198
Appendix B Register Names
B.1 Alternative register names ................................................................................... B-202
B.2 Register name aliases ......................................................................................... B-203
B.3 Index of architectural names ............................................................................... B-204
Appendix C Revisions
Glossary