The GNU libc maintainer writes: "People are starting to realize how broken the Xen model is with its privileged Dom0 domain. But the actions they want to take are simply ridiculous: they want to add the drivers back into the hypervisor. There are many technical reasons why this is a terrible idea. You'd have to add all the PCI handling and lots of other lowlevel code which is now maintained as part of the Linux kernel. But this is of course also the direction of VMWare who loudly proclaim that in the future we won't have OS as they exist today."