Category:Safety Certification
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This page links to documents, public discussions, meetings, etc. related to Safety Certification of Xen Project based products or code-lines.
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At this stage this category is primarily a place where to track various activities and also to see who is interested in certification efforts of Xen and who could perform which role. |
Industry Groups having a stake in certifying Open Source Stacks
- Automotive Grade Linux Virtualization Expert Group
- Genivi: Hyervisor Team (or a group that will eventually become one)
- Linaro: I am not sure whether there is a Linaro group yet, if so it would be worth adding it here
Relevant Presentations and Papers
Xen Specific
- Summary Table Comparing Different Hypervisors (March 2018)
- Xen and the Art of Certification - Nathan Studer, DornerWorks, 2014: video, slides
Industry Wide
- The AGL software defined connected car architecture, April 2018: whitepaper
- TSC Sponsored BoF: Can Linux and Automotive Functional Safety Mix ? Take 2: Towards an open source, industry acceptable high assurance OS, Robin Randhawa, 2017: slides
Automotive Requirements
Automotive functions requirements for virtualized ECUs (copied from the AGL whitepaper)
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To Do:
It would be good, if we could map these to specific Xen Features, such that we see where there are gaps. |
Computing
- C1: Static resource partitioning and flexible on-demand resource allocation (CPU, RAM, GPU and IO).
- C2: Memory/IO bus bandwidth allocation and rebalancing.
Peripherals sharing
- P1: GPU and displays shall be shared between execution environments supporting both fixed (each one talks to its own display or to a specified area on a single display) and flexible configurations (shape, z-order, position and assignment of surfaces from different execution environments may change at run time).
- P2: Inputs shall be routed to one or multiple execution environments depending on current mode, display configuration (for touchscreens), active application (for jog dials & buttons), etc.
- P3: Audio shall be shared between execution environments. Sound complex mixing policies for multiple audio streams and routing of dynamic source/sink devices (BT profiles, USB speakers/microphones, etc.) shall be supported.
- P4: Network shall be shared between execution environments. Virtual networks with different security characteristics shall be supported (e.g., traffic filtering and security mechanisms).
- P5: Storage shall support static or shared allocation, together with routing of dynamic storage devices (USB mass storage).
Security
- SE1: Root of Trust and Secure boot shall be supported for all execution environments.
- SE2: Trusted Computing (discrete TPM, Arm TrustZone or similar) shall be available and configurable for all execution environments.
- SE3: Hardware isolation shall be supported (cache, interrupts, IOMMUs, firewalls, etc.).
- SE4: Secure updates shall be supported.
Performance and Power consumption
- PP1: Virtualization performance overhead shall be minimal: 1-2% on CPU/memory benchmarks, up to 5% on GPU benchmarks.
- PP2: Predictability shall be guaranteed. Minimal performance requirements shall be met in any condition (unexpected events, system overload, etc.).
- PP3: Execution environments fast boot: Less than 2 seconds for safety critical applications, less than 5 seconds for Instrument Cluster, and 10 seconds for IVI. Hibernate and Suspend to RAM shall be supported.
- PP4: Execution environments startup order shall be predictable.
- PP5: Advanced power management shall be implemented with flexible policies for each execution environment.
Safety
- SA1: System monitoring shall be supported to attest and verify that the system is correctly running.
- SA2: Restart shall be possible for each execution environment in case of failure.
- SA3: Redundancy shall be supported for the highest level of fault tolerance with fallback solutions available to react in case of failure.
- SA4: Real time support shall be guaranteed together with predictive reaction time.
Functional Safety Requirements
Safety Certification
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To Do:
I left this out for now, but Safety Certification Challenges provides some initial pointers to groups of information. |
Code Size impacting the cost of Safety Certification
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To Do:
Add coarse analyses from misc e-mail threads. |
Products using Xen and OpenEmbedded that need/have a degree of Safety Certification
Products with a degree of Safety Certification
Automotive Products
Embedded/Other Products
Contributor Spotlights
Pages in category "Safety Certification"
The following 12 pages are in this category, out of 12 total.
