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XCI - Xen Hypervisor for Client Devices

XCI is an embedded client hypervisor based on the Xen hypervisor using smaller libraries; giving a smaller memory and disk footprint than the standard Xen hypervisor. This product is intended for laptops or other mobile devices using standard Intel or AMD architecture. The project is an incubation project.

HXEN - Hosted Xen

Hosted Xen (HXEN) runs the Xen core hypervisor as a Type-2 VMM on top of a regular operating system instead of the usual Type-1 methodology that the Xen hypervisor is designed for. HXEN is capable of running on top of any operating system but is currently being developed for Windows and Mac OSX. The project has been archived. If you are interested in restarting the HXE project or starting a new project to port HXEN to another operating system, please contact your Community Manager.

Project Satori

Project Satori is the result of a collaborative agreement between XenSource and Microsoft, and was carried forward after XenSource was acquired by Citrix Systems. The base Satori components are released by Microsoft as the Linux Integration Components for Hyper-V, and provide support for paravirtualized XenLinux guests running on Hyper-V. The Linux Integration Components can be downloaded here.
The Project Satori home page on Xen.org is here and includes licensing information and code downloads. The project has completed and has thus been archived.

Xen Cloud Platform contains the Xen Hypervisor.