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

Talk Of A Brand New API For KVM Virtualization

Virtualization

Published on 05 February 2012 02:45 AM EST
Written by Michael Larabel in Virtualization
Comment On This Article

A discussion has been started about a next-generation API for Linux KVM (Kernel-based Virtual Machine) virtualization.

Avi Kivity of Red Hat has written to the KVM developers in a proposal for a brand new API for KVM. The API would rework syscalls, state accessors, KVM's device model, ioeventfd/irqfd, guest memory management, and the vCPU FD mmap area, among other potential improvements over the existing API.

The existing KVM API can't be abandoned immediately, but this would be incremental and both APIs would be supported over several years. Here is Avi's reasoning for the need for a new API:
The kvm api has been accumulating cruft for several years now. This is due to feature creep, fixing mistakes, experience gained by the maintainers and developers on how to do things, ports to new architectures, and simply as a side effect of a code base that is developed slowly and incrementally.

While I don't think we can justify a complete revamp of the API now, I'm writing this as a thought experiment to see where a from-scratch API can take us. Of course, if we do implement this, the new and old APIs will have to be supported side by side for several years.

The feedback to this proposal for a new KVM API has been largely positive among other KVM virtualization developers.

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. AMD Radeon R9 290: Gallium3D vs. Catalyst Drivers
  2. AMD Radeon R9 290 Open-Source Driver Works, But Has A Ways To Go
  3. Trying The Configurable 45 Watt TDP With AMD's A10-7800 / A6-7400K
  4. Sumo's Omni Gets Reloaded
Latest Linux Articles
  1. 20-Way Radeon Comparison With Open-Source Graphics For Steam On Linux Gaming
  2. Preview: OS X 10.10 Yosemite vs. Ubuntu Linux GPU Performance
  3. Radeon Graphics Yield Mixed Results With Linux 3.17 Kernel
  4. AMD's RadeonSI Driver Sped Up A Lot This Summer
Latest Linux News
  1. Re-Clocking Your NVIDIA GPU With Nouveau On Linux 3.17
  2. Radeon DRM Queues More Changes, RV6xx UVD For Linux 3.18
  3. Nouveau On Oibaf PPA Is Back To Running Well
  4. Metro 2033 Redux Will Hopefully Hit Linux Real Soon
  5. New Virtual Monitor Software Might End Up On Linux
  6. Company of Heroes 2 Might Be Coming Out For Linux
  7. NIR Still Being Discussed For Mesa, LLVM Gets Brought Up Again
  8. Plasma Active Is Mostly Ported To KDE Frameworks 5
  9. Google Chrome 37 Brings Many Security Fixes
  10. MenuetOS Updated With SMP Threads & Onscreen Keyboard
Latest Forum Discussions
  1. Updated and Optimized Ubuntu Free Graphics Drivers
  2. Canonical Joined The Khronos Group To Help Mir/Wayland Drivers
  3. AMD Releases UVD Video Decode Support For R600 GPUs
  4. Announcing radeontop, a tool for viewing the GPU usage
  5. [DB] BIOS - ACPI - data collecting
  6. It's Now Possible To Play Netflix Natively On Linux Without Wine Plug-Ins
  7. Users defect to Linux as OpenBSD removes Lynx from base system
  8. Chinese People Try To Patent Wine On ARM