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The Xen ARM Project

In recent months, Xen.org has seen an increased interest in Xen for the ARM architecture. To help channel the interest in Xen for the ARM architecture, Xen.org is working with Samsung and others to augment the continuing work of Samsung on the Xen ARM Project. The main goal of this work is to ensure that Xen ARM can support future ARM based clients and servers, to merge ARM support into mainline Xen by 2012 and to incubate a diverse and sustainable community around ARM support for Xen. ARM is supportive of the initiative.

The Xen ARM Project, led by Samsung, is responsible for the direct port of the Xen hypervisor to the ARM processor. So far the focus of the project has been to use Xen Paravirtualization (PV) for a range of processors (ARM v5 - v7). The project is also working on problems such as solving real-time guarantees in a virtualized environment and multi-processor support. The project is led by Sang-bum Suh from Samsung and can be monitored on the Xen ARM Wiki or the project mailing list.

A number of discussions with interested parties have started to see how ARM support can be added into mainstream Xen. A set of preliminary goals has been discussed, which will likely evolve as more momentum builds:

  • Provide a focalpoint for building a sustainable community for Xen ARM .
  • Investigate how support for full ARM virtualization to Xen (using ARMv7 virtualization extensions for the Cortex A15) can be added to mainline Xen and establish a plan.
  • Establish a plan for merging the functionality delivered in the Xen ARM project into mainstream Xen.
  • Investigate how functionality such as multi-core support, real-time extensions and other functionality that is important to embedded developers can be merged into mainstream Xen.
  • Deliver on the plan: in other words add Xen ARM support to mainline Xen.
If you are interested in participating please get in touch with the project via the Xen ARM Mailing List. Should this not be possible at this stage (we do understand that this is not always possible), please contact all of the following people: Sang-bum Suh, Keir Fraser and Lars Kurth.

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