1. Computers
  2. Display Drivers
  3. Graphics Cards
  4. Memory
  5. Motherboards
  6. Processors
  7. Software
  8. Storage
  9. Operating Systems


Facebook RSS Twitter Twitter Google Plus


Phoronix Test Suite

OpenBenchmarking.org

KVM/QEMU 3D Support Still Being Figured Out

Red Hat

Published on 10 December 2013 08:58 AM EST
Written by Michael Larabel in Red Hat
3 Comments

David Airlie of Red Hat has provided a status update concerning his Virgil3D project for allowing guest 3D/OpenGL acceleration support within KVM/QEMU virtualized instances.

The latest stumbling block that's been encountered by David in his pursuit of 3D virtual support emulation to match that of the 3D driver offerings of VMware and VirtualBox is how to handle disconnected VM operations. Libvirt-based virtualization solutions like virt-manager don't depend upon the current running user session (or its X.Org Server) when running a VM but effectively run as their own user.

Other virtualization software like GNOME Boxes is also run differently from being a traditional end-user application. David Airlie has been trying to figure out all the implications and how to effectively design a 3D driver for these environments given that the commonly-used GLX interface to OpenGL is contingent upon having an X.Org Server connection.

There are some possibilities to handle the situation using DRM-render nodes and making use of EGL rather than GLX for doing off-screen rendering. However, the issue here is that NVIDIA still only has limited EGL support. NVIDIA's 32-bit driver supports EGL (but not the 64-bit build at the moment) and it's only for OpenGL ES.

There's also been other challenges involved like how to deal with the VM lifecycle when the GPU goes away, etc. David Airlie is slowly but surely working through the 3D VM situation, but long story short don't look for something that's ready for QEMU/KVM in the immediate future. If you need 3D support in a VM now, I highly recommend checking out VMware's (proprietary) virtualization products and do use it on my main system daily.

More details on David's 3D virtualization struggles can be found via his blog post.

About The Author
Michael Larabel is the principal author of Phoronix.com and founded the web-site in 2004 with a focus on enriching the Linux hardware experience and being the largest web-site devoted to Linux hardware reviews, particularly for products relevant to Linux gamers and enthusiasts but also commonly reviewing servers/workstations and embedded Linux devices. Michael has written more than 10,000 articles covering the state of Linux hardware support, Linux performance, graphics hardware drivers, and other topics. Michael is also the lead developer of the Phoronix Test Suite, Phoromatic, and OpenBenchmarking.org automated testing software. He can be followed via and or contacted via .
Latest Linux Hardware Reviews
  1. Scythe Mugen MAX
  2. Intel Core i7 5960X Haswell-E On Linux
  3. Intel 80GB 530 Series M.2 SSD On Linux
  4. With A New Motherboard, The Core i7 5960X Haswell-E Lights Up
Latest Linux Articles
  1. Counter-Strike: Global Offensive NVIDIA/AMD Benchmarks On Linux
  2. Running Fedora 20 On Intel's Core i7 Haswell-E Platform
  3. A Tour Of The New Phoronix Office
  4. 7-Way Linux Desktop Gaming Comparison On Ubuntu 14.10
Latest Linux News
  1. The Features Coming For Fedora 21
  2. Counter-Strike: Global Offensive Starts Rolling Out To Linux Users
  3. The Gestures Support Of GNOME 3.14
  4. Linux 3.17 Has Basic Support For The Xbox One Controller
  5. openSUSE 13.2 Beta Still Using Btrfs By Default, & KDE Plasma 5 For Testing
  6. GTK+ 3.14 Brings Much Better Wayland Support, Multi-Touch, New Theme
  7. DisplayPort Comes To USB's Type-C Connector
  8. NSS Updated On Ubuntu 12.04/14.04 To Allow Netflix Support
  9. Linux 3.17-rc6 Released; Linux 3.17 Final Might Come In One Week
  10. X.Org Server 1.16.1 Released
Latest Forum Discussions
  1. X.Org Women Outreach Program Only Turns Up Two Applicants So Far
  2. Uselessd: A Stripped Down Version Of Systemd
  3. State of Nouveau now and in the near future?
  4. Updated and Optimized Ubuntu Free Graphics Drivers
  5. Wasteland 2 Officially Launched Today, Including For Linux Gamers
  6. NVIDIA GTX 770/780 -works ?
  7. New stress testing utility for GPU's
  8. How to get Catalyst 14.4 working on Ubuntu 14.04