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Virtual Event | September 15-16, 2021
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Wednesday, September 15 • 06:30 - 06:55
Passthrough/Headless GPU Gets Ahead - Tina Zhang & Vivek Kasireddy, Intel

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GPU passthrough technology guarantees users nearly full GPU performance within a virtual machine(VM), by giving a VM the direct access to GPU hardware. Since a passthrough GPU is fully controlled by guest, usually it’s non-trivial to share a passthrough GPU’s frame buffers with host-controlled devices. In the client virtualization field, there’s a trend to share guest applications’ or compositor’s frame buffers with the host display compositor, so that those guest frame buffers can be composited and posted to the display monitor. With a passthrough GPU, the guest frame buffer sharing could be very challenging, especially considering frame buffers 0-copy and synchronization between the guest applications and host display compositor. In this session, we’re going to present a solution that combines passthrough GPU with a paravirtualization display provided by virtio-gpu to achieve the frame buffers 0-copy goal as well as the synchronization. We will talk about the architecture design, the implementation challenges as well as some use cases based on the solution.


Tina Zhang

Software Engineer, Intel
Tina is a software engineer from Intel virtualization team. She has 6 years experience in embedded system software development and 8 years experience in system virtualization and GPU virtualization. Tina was a speaker of KVM Forum 2017.

Vivek Kasireddy

Graphics Software Engineer, Intel
Vivek works on multiple components of the Graphics stack in Intel's IOTG team. His recent focus has been on enabling novel Graphics Virtualization use-cases and features. He is currently working on augmenting and improving the performance of virtio-gpu drivers in the kernel and Q... Read More →

Wednesday September 15, 2021 06:30 - 06:55 UTC
  KVM Track 2
  • Presentation Slides Attached Yes