Paper Info
Title
Toward compositional verification of interruptible OS kernels and device drivers.
Abstract
An operating system (OS) kernel forms the lowest level of any system software stack. The correctness of the OS kernel is the basis for the correctness of the entire system. Recent efforts have demonstrated the feasibility of building formally verified general-purpose kernels, but it is unclear how to extend their work to verify the functional correctness of device drivers, due to the non-local effects of interrupts. In this paper, we present a novel compositional framework for building certified interruptible OS kernels with device drivers. We provide a general device model that can be instantiated with various hardware devices, and a realistic formal model of interrupts, which can be used to reason about interruptible code. We have realized this framework in the Coq proof assistant. To demonstrate the effectiveness of our new approach, we have successfully extended an existing verified non-interruptible kernel with our framework and turned it into an interruptible kernel with verified device drivers. To the best of our knowledge, this is the first verified interruptible operating system with device drivers.
Year
DOI
Venue
2018
10.1007/s10817-017-9446-0
J. Autom. Reasoning
Keywords
DocType
Volume
Program verification,Certified OS kernels,Interrupts,Device drivers,Abstraction layer,Modularity
Journal
61
Issue
ISSN
Citations 
1-4
0168-7433
5
PageRank 
References 
Authors
0.44
27
5
Name
Order
Citations
PageRank
Hao Chen1362.26
Xiongnan (Newman) Wu2493.58
Zhong Shao389768.80
Joshua Lockerman450.44
Ronghui Gu5647.82