Software update: Xen 3.4.0

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Xen is a “virtual machine hypervisor” for the x86 platform and allows multiple operating systems to run simultaneously on a single system without drastically impacting performance. For more information about Xen and its community, we refer you to this one and this one pages. Currently only Linux and NetBSD are supported as host systems, but work is underway to fully support other operating systems, such as Solaris. The developers have released Xen 3.4.0 with the following announcement:

Folks, We’re pleased to announce the official release of Xen 3.4.0!

This release contains a number of important new features and updates including:

  • Device passthrough improvements, with particular emphasis on support for client devices (further support is available as part of the XCI project at
  • RAS features: cpu and memory offline
  • Power management – improved frequency/voltage controls and deep-sleep support. Scheduler and timers optimized for peak power savings.
  • Support for the Viridian (Hyper-V) enlightenment interface
  • Many other x86 and ia64 enhancements and fixes

You can get the source using mercurial from:

A pre-prepared source tarball is available from:

Keir (on behalf of the whole Xen dev team)

Version number 3.4.0
Release status Final
Operating systems Linux
Website xen
License type GPL
CommunityDownloadFrequencyGPLHyper-VLinuxMachineManagementMemoryPerformanceSleepSoftwareSoftware UpdateSolarisTeamXen