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Integrerad modulär avionik med virtualisering
Linköping University, Department of Computer and Information Science. Linköping University, The Institute of Technology.
2013 (Swedish)Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesisAlternative title
Integrated modular avionics with virtualization (English)
Abstract [sv]

Det finns huvudsakligen tre olika sätt att konstruera ett partitionerat system på: Federerad arkitektur, Integrerad Modulär Avionik (IMA) med ARINC 653 eller IMA med virtualisering. I den här rapporten undersöks de olika arkitekturernas egenskaper och vilka möjligheter som finns för certifiering av dem. Efter den teoretiska undersökningen har Virtualisering, och framförallt Xen, valts ut för en testimplementation och tillförlitlighetstester.

Testimplementationen består av fyra partitioner där varje partition har sin specifika uppgift att lösa. Den fjärde partitionen används för att undersöka hur Xen hanterar en partition som aggressivt nyttjar I/O, processor eller arbetsminne.

Testerna visar att Xen har en svag punkt: all I/O hanteras via en egen, speciell, partition. Denna partition saknar dessutom möjligheter att prioritera I/O från specifika partitioner. Den slutgiltiga slutsatsen av de tester som genomförts är att ett system byggt på Xen inte kan lämna samma tillförlitlighet som ett system med en federerad arkitektur eller ett system som bygger på ARINC 653.

Abstract [en]

One can basically take three different approaches when designing a partitioned avionic system: Federated Architecture, Integrated Modular Avionics (IMA) with ARINC 653 or IMA with Virtualization. This report examines the different architectural characteristics and the possibilities for certifying them. After the theoretical investigation, Virtualization and, in particular, Xen has been selected for a trial implementation and reliability tests.

The implementation consists of four partitions where each partition has its own specific task to solve. The fourth partition is used to examine how Xen handles a partition that aggressively utilizes I/O, processor or memory resources.

Tests show that Xen has a weak point: all I/O is handled through a separate and unique partition. This partition also lacks the ability of prioritizing I/O from specific partitions. The final conclusion of the tests carried out in this thesis is that a system built on Xen cannot provide the same reliability as a system with a federated architecture or a system based on ARINC 653.

Place, publisher, year, edition, pages
2013. , p. 60
Keywords [sv]
Partitionerat system, Virtualisering, Xen, ARINC 653, DO-178C
National Category
Computer Sciences
Identifiers
URN: urn:nbn:se:liu:diva-98433ISRN: LIU-IDA/LITH-EX-A--13/046–SEOAI: oai:DiVA.org:liu-98433DiVA, id: diva2:654874
External cooperation
Saab Dynamics
Subject / course
Computer Engineering
Presentation
2013-09-18, Alan Turing, Linköpings universitet, 581 83, Linköping, 10:15 (Swedish)
Supervisors
Examiners
Available from: 2013-10-18 Created: 2013-10-08 Last updated: 2018-01-11Bibliographically approved

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CiteExportLink to record
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