XenAPI Admin Project has the goal to make using XenAPI systems easier. Currently this entails writing documentation (manpages, howtos) and tools for the command line. Later his project may morph into something else, only time will tell.
Requires VT-d support in the CPU (and motherboard). See:VTd HowTo
Xen PCI Passthrough
Xen VGA Passthrough
Secondary GPU Passthrough
YouTube - Gaming on Xen
YouTube - PCI passthrough with Xen
YouTube - Xenserver GPU Passthough gaming Battlefield 4
Mirage OS is a library operating system that constructs unikernels for secure, high-performance network applications across a variety of cloud computing and mobile platforms. Code can be developed on a normal OS such as Linux or MacOS X, and then compiled into a fully-standalone, specialised unikernel that runs under the Xen hypervisor.
The Haskell Lightweight Virtual Machine (HaLVM) is a port of the Glasgow Haskell Compiler toolsuite that enables developers to write high-level, lightweight virtual machines that can run directly on the Xen hypervisor.
Erlang on Xen a.k.a. LING
OpenXenManager
XenWebManager (dead project)
YouTube - 2014 SouthEast LinuxFest - Russell Pavlicek - Xen Project 4 4: Features and Futures
YouTube - 2014 SouthEast LinuxFest - Russell Pavlicek - Intro to the Security Features of Xen
Linux.com - Open Source Security Process Part 1: A Cloud Security Introduction
Linux.com - Open Source Security Process Part 2: Containers vs. Hypervisors - Protecting Your Attack Surface
Linux.com - Open Source Security Process Part 3: Are Today’s Open Source Security Practices Robust Enough in the Cloud Era?
Linux.com - Open Source Security Process Part 4: Xen Project's Policy for Responsible Disclosure with Maximum Fairness and Transparency