[PATCHES] Bits and pieces for Power7 support in HV mode

[Benjamin Herrenschmidt]

Here's a patch series which adds bits and pieces (and in some case
not directly related cleanups that will be useful for the upcoming
platform that uses that stuff) to allow running a recent CPU in
hypervisor mode.

It applies on top of the few cleanups and the XICS rewrite I've
already posted and is a pre-requisite for the upcoming KVM support
and the "non-virtualized" platform (still brewing).

I've also put them in my "test" branch

Cheers,
Ben.