On 13/11/13 18:20, Vladimir 'φ-coder/phcoder' Serbinenko wrote:
> Hello, all. I see something strange: apparently it was intended that
> dom0 kernels would have feature "dom0". But vmlinu[xz] even with dom0
> doesn't have such feature set. Does that mean that xen has a bug in not
> checking it and vmlinu[xz] has a bug in not having this feature?


There is (almost) no code difference between a PVops dom0 and domU, and certainly nothing now that requires recompiling.

dom0/domU is really just a permissions distinction.  dom0 is permitted full control of all hardware and all other domUs.

~Andrew