The Xen Project develops Xen, an open-source hypervisor for infrastructure, embedded systems and security-sensitive virtualisation platforms, where clear separation and long-term control matter. Xen is a virtualisation layer between the hardware and the guest operating systems. It is distributed as source code and packages for operators who run their own virtualisation hosts.
The project is a Linux Foundation project with published governance documents, and the software is released under the GNU General Public License version 2. The Linux Foundation is a non-profit with a mailing address in San Francisco, California, so the institutional home is in the United States. The source code can nevertheless be audited, forked and run on European infrastructure. Organisations that want full control of their virtualisation stack can operate Xen themselves; commercial products built on Xen are a separate choice, with their own owners and jurisdictions.