Composable and predictable dynamic loading for time-critical partitioned systems on multiprocessor architectures

摘要

Time-critical systems for instance in avionics, isolate applications from each other to provide safety and timing guarantees. Resources are partitioned in time and space to create an isolated partition per application which facilitates fault containment and independent development, testing and verification of applications. Current partitioned systems do not allow dynamically adding applications. Applications are statically loaded in their respective partitions. However, dynamic loading can be useful or even necessary for scenarios such as on-board software updates, dynamic reconfiguration or re-loading applications in case of a fault. Multiprocessors offer higher performance and by integrating applications on different single-core chips onto a single multiprocessor chip, power consumption and weight of the system can be reduced. For these reasons, interest in using multiprocessor platforms for time-critical systems has recently increased.