Abstract
In Mixed-Criticality Systems (MCSs), timely handling of I/O operations is a key for the system being successfully implemented and appropriately functioned. The I/O system for a MCS must simultaneously enable different features, including isolation/separation, timing-predictability, performance, scalability and energy-efficiency. Moreover, such I/O system also requires 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 mixed-criticality I/O management framework, termed MCSIOV. MCS-IOV is based on hardware-assisted virtualisation, which provides temporal and spatial isolation and prohibits fault propagation with limited extra overhead. 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-predictability and scalability. Finally, we introduce an energy management framework for MCS-IOV, ensuring the power-efficiency of the design. The MCS-IOV is the first systematical solution that fulfils all the requirements as a mixed-criticality I/O system.
Original language | English |
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Pages (from-to) | 320-333 |
Number of pages | 14 |
Journal | IEEE Transactions on Computer-Aided Design of Integrated Circuits and Systems |
Volume | 41 |
Issue number | 2 |
DOIs | |
Publication status | Published - 16 Feb 2021 |
Bibliographical note
Publisher Copyright:IEEE
Copyright:
Copyright 2021 Elsevier B.V., All rights reserved.
Keywords
- analysability
- Device drivers
- energy-efficiency.
- Hardware
- Input/Output (I/O)
- Program processors
- Real-time systems
- Resource management
- scalability
- Scalability
- system architecture
- Task analysis
- Timing