Heterogeneous MPSoCs for Mixed-Criticality Systems: Challenges and Opportunities

Abstract

Abstract-Due to their cost, performance, area, and energy efficiency, MPSoCs offer appealing architecture for emerging mixed criticality systems (MCS) such as driverless cars, smart power grids, and healthcare devices. Furthermore, heterogeneity of MPSoCs presents exceptional opportunities to satisfy the conflicting requirements of MCS. Seizing these opportunities is unattainable without addressing the associated challenges. We focus on four aspects of MCS that we believe are of most importance upon adopting MPSoCs: theoretical model, interference, data sharing, and security. We outline existing solutions, highlight the necessary considerations for MPSoCs including both opportunities they create and research directions yet to be explored.

Safety and security collaborative analysis framework for high-performance embedded computing devices

“…Nowadays a number of multicore safety devices are available in the market, designed mainly for the automotive domain, compliant with IEC 61508 or ISO 26262 standards up to ASIL D, and potentially applicable to other domains (Pérez et al, 2020). However, when these devices are used to integrate mixed-criticality applications, the certification of systems with independence of execution and predictability are still open research challenges that are aggravated with increasing platform complexity (Hassan, 2018). For this reason, in the last decade there have been extensive research in this direction (Pérez et al, 2020;Martinez et al, 2018) and cer-tification experts and standardization bodies have started to include multicore architectures explicitly in standards and guidelines (e.g., automotive domain specific standard ISO 26262 part 11, AU-TOSAR's guide for multicore systems (AUTOSAR, 2014;Hassan, 2018), Certification Authorities Software Team (CAST)-32A position paper for multicore processors in avionics (CAST, 2016;Agirre et al, 2017)).…”

Employing the Concept of Multilevel Security to Generate Access Protection Configurations for Automotive On-Board Networks

“…A strict physical partitioning of the on-board network can help protect vehicles against successful attacks, but it is possible only to a certain extent as the ECUs are generally required to exchange data [1]. In fact, the ongoing consolidation of computing resources will even increase the need for on-board connectivity [5]: Future electric/electronic (E/E) architectures are expected to be centralized in the sense that a limited number of powerful processing platforms, often based on a multiprocessor system-on-chip (MPSoC), will tightly integrate a variety of different functions [6]. In the design of such systems, on-chip interconnects should therefore be treated as an integral part of the on-board network.…”

A Formal Model for the Automatic Configuration of Access Protection Units in MPSoC-Based Embedded Systems

“…They integrate multiple processing cores along with memory hierarchies, input/output (I/O) controllers, and similar peripherals on a single chip. Especially heterogeneous MPSoCs, which comprise diverse processing cores, are promising platforms for the cost-, area-, and power-efficient implementation of applications with high performance requirements [1]. Due to the tight integration and the fact that their cores share many of the on-chip resources, however, their use in safety-and security-critical systems is a challenging endeavor.…”