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June 21-24, 2022
Austin, Texas, USA + Virtual
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Note: The schedule is subject to change.

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IMPORTANT NOTE: Timing of sessions and room locations are subject to change.

Thursday, June 23 • 2:55pm - 3:35pm
Static Partitioning with Xen, LinuxRT, and Zephyr: A Concrete End-to-end Example - Stefano Stabellini, AMD

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Static partitioning enables multiple domains to run alongside each other with no interference. They could be running Linux, an RTOS, or another OS, and all of them have direct access to different portions of the SoC. In the last five years, the Xen community introduced several new features to make Xen-based static partitioning possible. Dom0less to start multiple static domains in parallel at boot, and Cache Coloring to minimize cache interference effects are among them. Static inter-domain communications mechanisms were introduced this year, while "ImageBuilder" has been making system-wide configurations easier. An easy-to-use complete solution is within our grasp. This talk will show the progress made on Xen static partitioning. The audience will learn to configure a realistic reference design with multiple partitions: a LinuxRT partition, a Zephyr partition, and a larger Linux partition. The presentation will show how to set up communication channels and direct hardware access for the domains. It will explain how to measure interrupt latency and use cache coloring to zero cache interference effects. The talk will include a live demo of the reference design.

Speakers
avatar for Stefano Stabellini

Stefano Stabellini

Fellow, AMD
Stefano Stabellini is a Fellow at AMD, where he leads system software architecture and the virtualization team. Previously, at Aporeto, he created a virtualization-based security solution for containers and authored several security articles. Stefano has been involved in Xen development... Read More →


Thursday June 23, 2022 2:55pm - 3:35pm CDT
Room 203/204 (Level 2)