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. A Walkthrough Of The New 32 System Open-Source Linux Benchmarking Test Farm
  2. Habey MITX-6771: Mini-ITX Board With Quad-Core J1900 Bay Trail
  3. OCZ Vector 150 SSD On Linux
  4. Noctua i4 CPU Cooler: Great For Cooling High-End LGA-2011v3 CPUs
Latest Linux Articles
  1. AMD Kaveri: Open-Source Radeon Gallium3D vs. Catalyst 14.12 Omega Driver
  2. 12-Way AMD Catalyst 14.12 vs. NVIDIA 346 Series Linux GPU Comparison
  3. AMD Catalyst 14.12 Omega Driver Brings Mixed Results For Linux Users
  4. 6-Way Winter 2014 Linux Distribution Comparison
Latest Linux News
  1. After 10+ Years, NetworkManager Reaches v1.0
  2. VDPAU Updated To v0.9
  3. An Open Hardware Random Number Generator Proposed
  4. LLVM 3.6 Will Be Branched Next Month
  5. Opera Browser Puts Out Linux Updates For The Holidays
  6. GNOME Shell 3.15.3 Adds Support For High-Contrast Themes
  7. Linux 3.19: ThinkPad Muting Redone, New Dell Backlight Support, Acer Is Banging
  8. KVM Drops Support For IA64 While Adding Various x86 Improvements
  9. GCC 4.8.4 Officially Released
  10. FSF's High Priority Project List Now Has A Committee
Latest Forum Discussions
  1. XLennart: A Game For Systemd Haters With Nothing Better To Do
  2. Need some hand holding with upgrading xserver
  3. Debian init discussion in Phoenix Wright format
  4. The New SuperTuxKart Looks Better, But Can Cause GPU/Driver Problems
  5. FPS capped on Linux (AMD fglrx drivers)
  6. Are there an app using HSA ?
  7. Bench specific mount point
  8. Tool for measuring FPS in games