[PATCH 0/6] Implement split core for POWER8

[Michael Neuling]

This patch series implements split core mode on POWER8.  This enables up to 4
subcores per core which can each independently run guests (per guest SPRs like
SDR1, LPIDR etc are replicated per subcore).  Lots more documentation on this
feature in the code and commit messages.

Most of this code is in the powernv platform but there's a couple of KVM
specific patches too.

Alex: If you're happy with the KVM patches, please ACK them and benh can hold
this series.

Patch series authored by mpe and me with a few bug fixes from others.