Mixed-Criticality Embedded Systems -- A Balance Ensuring Partitioning and Performance

2015 ◽  
Author(s):  
Michael Paulitsch ◽  
Oscar Medina Duarte ◽  
Hassen Karray ◽  
Kevin Mueller ◽  
Daniel Muench ◽  
...  
Keyword(s):  
Embedded Systems ◽  
And Performance ◽  
Mixed Criticality

scholarly journals Self Diagnostics and Isolation Mechanisms for Mixed Criticality Systems

2019 ◽  
Vol 15 (4) ◽  
Author(s):  
Asmaa Tellabi ◽  
Christoph Ruland ◽  
Karl Waedt ◽  
Abdelbast Sabri
Keyword(s):  
Critical Systems ◽  
Security Measures ◽  
Gate Arrays ◽  
Test Application ◽  
Self Test ◽  
And Performance ◽  
And Control ◽  
Isolation Mechanisms ◽  
Mixed Criticality

Virtualization is a technology that is frequently employed in computers and servers to provide isolation for execution environments, and to support the execution of multiple Operating Systems (OS) on the same hardware platform. In the embedded systems´ world, virtualization has been a rising trend, essentially because it offers an isolation mechanism that provides hardware manufacturer´ independence and it avoids obsolescence issues. The isolation mechanism supports safety and security measures, and assists in the certification of safety-critical systems. Virtualization offers improved performances, better transparency, portability and interoperability by integrating hardware and software resources, and also networking services into one computing entity. It makes the integration process of Mixed Criticality Systems (MCS) easier. For industries, FieldProgrammable Gate Arrays (FPGAs) hardware solutions provide the needed level of flexibility and performance. In this paper, a Self-test application is integrated in the hardware and also in the software level. The importance of self-test applications for Instrumentation and Control (I&C) systems will be discussed in the context of virtualization. For this implementation a type 1 hypervisor called Xtratum is used. An analysis of inter-partition communication channels´ performance will be provided including the implications multicore approaches will have on communication. The novelty of this work is to study the isolation impact multicore approaches can have on inter-partitions communications in Xtratum. Another novel aspect is the implementation of a self-test application in the hypervisor and the board as well. 

SystemC Platform Modeling for Behavioral Simulation and Performance Estimation of Embedded Systems

2010 ◽  
pp. 219-243 ◽  
Author(s):  
Hector Posadas ◽  
Juan Castillo ◽  
David Quijano ◽  
Victor Fernandez ◽  
Eugenio Villar ◽  
...  
Keyword(s):  
Embedded Systems ◽  
Design Space Exploration ◽  
Performance Metrics ◽  
System Modeling ◽  
Performance Estimation ◽  
Behavioral Simulation ◽  
Close Interaction ◽  
Accurate Performance ◽  
And Performance ◽  
On Chip

Currently, embedded systems make use of large, multiprocessing systems on chip integrating complex application software running on the different processors in close interaction with the application-specific hardware. These systems demand new modeling, simulation, and performance estimation tools and methodologies for system architecture evaluation and design exploration. Recently approved as IEEE 1666 standard, SystemC has proven to be a powerful language for system modeling and simulation. In this chapter, SCoPE, a SystemC framework for platform modeling, SW source-code behavioral simulation and performance estimation of embedded systems is presented. Using SCoPE, the application SW running on the different processors of the platform can be simulated efficiently in close interaction with the rest of the platform components. In this way, fast and sufficiently accurate performance metrics are obtained for design-space exploration.

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