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October 24-26, 2018 - Edinburgh, Scotland, UK
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Thursday, October 25 • 14:45 - 15:15
Device Assignment with Nested Guests and DPDK - Peter Xu, Red Hat

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I/O virtualization is one of the most important aspect of virtualization technology. Generally speaking we can have three types of I/O devices in a virtual machine: emulated, para-virtualized, and device assignment. Here device assignment plays a vital role in performance critical scenarios, which allows a guest to seamlessly manipulate a real hardware device. However it was never safe to run DPDK with such a device before in the guest, and even impossible for nested virtualization due to lack of IO page mapping mechanism. In this presentation, Peter Xu will introduce his work on QEMU/KVM vIOMMU to enable these scenarios. It will contain not only how new users can start using the new feature, but also technical details and challenges on the project.

Speakers
avatar for Peter Xu

Peter Xu

Senior Software Engineer, Red Hat
Peter Xu works for Red Hat virtualization team. He is working on QEMU/KVM project with vIOMMUs, migrations, interrupts and other miscelleneous stuff. He has given a talk in KVM Forum 2016 together with Wei Xu on vhost DMA Remapping.



Thursday October 25, 2018 14:45 - 15:15
Fintry Auditorium