Self-Integration for Virtualization of Embedded Many-Core Systems

S. Wildermann, J. Teich
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引用次数: 3

Abstract

Virtualization of embedded systems enables the integration of various independent and isolated virtual environments on the same hardware. It is therefore seen as a key enabler for implementing mixed-criticality systems on future many-core technology. However, a challenge is that such systems are increasingly exposed to dynamic workloads, e.g., due to the "openness" of modern mobile devices or the execution of varying application mixes. As a remedy, run-time management enables the dynamic allocation of system resources to the virtual environments according to their current requirements. This paper investigates self-integration of such dynamic environments in virtualized embedded systems by providing management strategies for re-partitioning shared resources at run time. We formulate and analyze the underlying optimization problem with the particular focus on security and scalability as two important factors for managing embedded systems in the many-core era. The evaluation of the theoretical results by means of a case study shows the improvements with respect to scalability and security, and leads to a discussion of the most important future trends for paving the road to self-integrating virtualized embedded systems.
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嵌入式多核系统虚拟化的自集成
嵌入式系统的虚拟化允许在同一硬件上集成各种独立和隔离的虚拟环境。因此,它被视为在未来多核心技术上实现混合临界系统的关键推动者。然而,一个挑战是,这些系统越来越多地暴露于动态工作负载,例如,由于现代移动设备的“开放性”或不同应用程序组合的执行。作为补救措施,运行时管理允许根据虚拟环境的当前需求动态地将系统资源分配给虚拟环境。本文通过提供在运行时重新划分共享资源的管理策略,研究了虚拟化嵌入式系统中这种动态环境的自集成。我们制定并分析了潜在的优化问题,特别关注安全性和可扩展性作为管理多核时代嵌入式系统的两个重要因素。通过案例研究对理论结果进行了评估,显示了在可扩展性和安全性方面的改进,并引发了对自集成虚拟化嵌入式系统铺平道路的最重要的未来趋势的讨论。
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