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August 22nd - 24th in Toronto, Canada
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Wednesday, August 24 • 3:35pm - 4:25pm
An Introduction to PCI Device Assignment with VFIO - Alex Williamson, Red Hat

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VFIO is a Linux kernel userspace driver framework used by QEMU to make devices directly assignable to virtual machines. This model replaces the now deprecated Legacy KVM device assignment driver. In this talk, Alex Williamson will give an overview of how VFIO works, how a device, in particular a PCI device, is decomposed and exported to userspace, and how a userspace application like QEMU recomposes the device into a virtual machine. Additionally, Alex will highlight the interfaces used to accelerate VFIO through KVM to achieve performance parity with legacy device assignment, while not creating hard dependencies to KVM.

Speakers
avatar for Alex Williamson

Alex Williamson

Senior Principal Software Engineer, Red Hat
Alex Williamson is a Senior Principal Software Engineer with Red Hat, maintainer of VFIO, Linux’s secure userspace driver framework, for both the kernel and QEMU components, and regular contributor to the Linux kernel IOMMU and PCI subsystems. Alex has given previous talks on VFIO... Read More →


Wednesday August 24, 2016 3:35pm - 4:25pm
Harbour A

Attendees (17)