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

Xen Dom0 Support May Come Back To Fedora

Fedora

Published on 24 November 2010 03:36 PM EST
Written by Michael Larabel in Fedora
10 Comments

With Xen Domain 0 support finally going into the mainline Linux kernel, those interested in virtualization atop Fedora are now looking at getting the Fedora Xen host support back up to speed for the next release (Fedora 15) or by the time that Fedora 16 rolls out. The Linux kernels since Fedora Core 8 have not been capable of Xen Dom0 hosting, but with the Linux 2.6.37 upstream merge that brings pvops-based support, work is getting underway within the Fedora community to better prepare this KVM alternative.

For the past two and a half weeks there has been a discussion on the fedora-virt mailing list for making Fedora's kernel capable of serving Xen guests again. The Xen Dom0 support is in the Linux 2.6.37 kernel, but there are some Xen drivers missing that will likely not be merged until the Linux 2.6.38 kernel, which may push back this goal to Fedora 16. There is some discussion, however, on possibly back-porting some of these newer Xen patches into Fedora's 2.6.37 kernel.

Besides the kernel side of things, there's also work to be done in ensuring Fedora's virtualization utilities (libvirt, virt-manager, etc) are still in good shape for Xen and that there's an easy way to enable the Xen kernel support from GRUB without manually editing the boot-loader's configuration file.

Red Hat will obviously continue to focus on KVM (the Kernel-based Virtual Machine) as their primary method of supporting Linux virtualization with it being the default with Red Hat Enterprise Linux 6.0 (RHEL6) and having played a large role in Fedora for many releases now. This will not change. There's just some Fedora users with hardware not capable of supporting KVM (older CPUs lacking Intel VT / AMD-V support) or having other reasons for using Xen over KVM and the other Linux virtualization solutions.

Besides the aforementioned mailing list thread, there's also this Fedora Wiki page regarding Xen Dom0 support. Fedora 15 is expected to be released next May.

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. 17-Way Linux Graphics Card Comparison With Civilization Beyond Earth
  2. AMD Kaveri: Open-Source Radeon Gallium3D vs. Catalyst 14.12 Omega Driver
  3. 12-Way AMD Catalyst 14.12 vs. NVIDIA 346 Series Linux GPU Comparison
  4. AMD Catalyst 14.12 Omega Driver Brings Mixed Results For Linux Users
Latest Linux News
  1. Intel 2.99.917 X.Org Driver Released, 3.0 Release Finally Near
  2. Server-Side XCB Is Being Discussed For The X.Org Server
  3. Adreno A4xx Rendering With Freedreno Takes Shape
  4. Linux 3.19-rc1 Kernel Released Ahead Of Schedule
  5. Civilization: Beyond Earth Linux GPU/Driver Benchmarks
  6. X.Org Server 1.16.3 Released To Fix Security Issues
  7. Linux 3.19 Merge Window Closes Ahead Of Schedule
  8. MIPS R6 Architecture Now Supported By GCC
  9. LowRISC To Feature Tagged Memory & Minion Cores
  10. Intel Skylake Audio Support For Linux 3.19
Latest Forum Discussions
  1. Speeding up systemd networking service
  2. Need some hand holding with upgrading xserver
  3. FPS capped on Linux (AMD fglrx drivers)
  4. Are there an app using HSA ?
  5. The New SuperTuxKart Looks Better, But Can Cause GPU/Driver Problems
  6. XLennart: A Game For Systemd Haters With Nothing Better To Do
  7. Updated and Optimized Ubuntu Free Graphics Drivers
  8. Debian init discussion in Phoenix Wright format