Paper Info
Title
MCS-IOV: Real-Time I/O Virtualization for Mixed-Criticality Systems
Abstract
In mixed-criticality systems, timely handling of I/O is a key for the system being successfully implemented and functioning appropriately. The criticality levels of functions and sometimes the whole system are often dependent on the state of the I/O. An I/O system for a MCS must provide simultaneously isolation/separation, performance/efficiency and timing-predictability, as well as being able to manage I/O resource in an adaptive manner to facilitate efficient yet safe resource sharing among components of different criticality levels. Existing approaches cannot achieve all of these requirements simultaneously. This paper presents a MCS I/O management framework, termed MCS-IOV. MCS-IOV is based on hardware assisted virtualisation, which provides temporal and spatial isolation and prohibits fault propagation with small extra overhead in performance. MCS-IOV extends a real-time I/O virtualisation system, by supporting the concept of mixed criticalities and customised interfaces for schedulers, which offers good timing-preditability. MCS-IOV supports I/O driven criticality mode switch (the mode switch can be triggered by detection of unexpected I/O behaviors, e.g., a higher I/O utilization than expected) and timely I/O resource reconfiguration up on that. Finally, We evaluated and demonstrate MCS-IOV in different aspects.
Year
DOI
Venue
2019
10.1109/RTSS46320.2019.00037
2019 IEEE Real-Time Systems Symposium (RTSS)
Keywords
DocType
ISSN
mixed criticality system,real time system,virtualization,safety critical system
Conference
1052-8725
ISBN
Citations 
PageRank 
978-1-7281-6464-9
3
0.39
References 
Authors
18
6
Name
Order
Citations
PageRank
Zhe Jiang130.73
N. C. Audsley229529.55
Pan Dong363.20
Nan Guan49521.53
Xiaotian Dai5102.53
Lifeng Wei630.39