The Linux Kernel should also be a Hypervisor…

As a Linux developer, it’s hard for me to be that interested in Xen…
When you think about it, it is really quite silly. We advocate Linux for
everything from embedded systems to systems requiring real-time
performance, to high-end mainframes. I trust Linux to run on my dvd
player, my laptop, and to run on the servers that manage my 401k.
Is virtualization so much harder than every other problem in the
industry that Linux is somehow incompatible of doing it well on its own?
Of course not.
— Anthony Liguori, Qemu maintainer