From KVM

Downloads[edit]

Most Linux distros already have KVM kernel modules and userspace tools available through their packaging systems. This is the easiest and recommended way of using KVM.

  • KVM kernel modules are part of the Linux kernel package
  • Userspace tools are usually called "qemu-kvm" or "kvm"
  • Linux guest drivers are part of the Linux kernel package
  • Windows guest drivers are available here

Please try your distro's packages first. Normally you do not need to patch anything or build from source.

Getting old versions of KVM[edit]

If you want to use specific versions of KVM kernel modules and supporting userspace, you can download the latest version from http://sourceforge.net/project/showfiles.php?group_id=180599. Note that as of QEMU 1.3, the userspace code comes straight from http://wiki.qemu.org/Download.

For the userspace components, you will find both qemu-kvm-<version> and kvm-<version> there. qemu-kvm is the stable branch of kvm, it's based off of qemu's point releases with the kvm extras on top; kvm-NN releases were previously known as the development releases, but are deprecated today and should not be used.

The kernel modules can be found in kvm-kmod-<kernel version>. A kernel version of 2.6.32.3 means that these are the same modules as those included with the 2.6.32.3 kernel from http://www.kernel.org

You can consult the changelog files included in the download-directory with each qemu-kvm and kvm-kmod release on Sourceforge for changes in the releases.

If you use a kernel from http://www.kernel.org or one provided from your distribution and do not use the modules provided by kvm-kmod releases:

  • your kernel has to be 2.6.29 or newer to run any version of qemu-kvm (kernel 2.6.27/2.6.28 with kvm-kmod 2.6.29 will also work)
  • your kernel has to be 2.6.25 or newer to run the kvm 76 userspace (or any newer kvm-XX release)
  • the modules provided by Linux 2.6.22 or later require kvm-22 or any later version. Some features are available only with newer kernels or userspace. It is recommended to use the latest available version.
  • the modules provided by Linux 2.6.21 require kvm-17. If you use the external module, use the latest available version.
  • the modules provided by Linux 2.6.20 require kvm-12. If you use the external module, use the latest available version.

Refer to choose the right kvm & kernel version for more information.