pseries: Convert VIO code to QOM style type safe(ish) casts
Curerntly the pseries VIO device code contains quite a few explicituses of DO_UPCAST and plain C casts. This is (obviously) type unsafe,and not the conventional way of doing things in the QOM model. This...
hw: move NVRAM interfaces to hw/nvram/, configure with default-configs/
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
hw: move target-independent files to subdirectories
This patch tackles all files that are compiled once, movingthem to subdirectories of hw/.
hw: make subdirectories for devices
Prepare the new directory structure.