ppc patch queue for 2016-05-31 Latest patch queue for ppc. Several significant things in here: * A bunch of patches from BenH fixing things in TCG - This should fix several regressions introduced by recent patches for better HV mode support - It also fixes some other bugs discovered along the way * Some fixes and cleanups for Mac machine types from Marc Cave-Ayland * Preliminary patches towards dynamic DMA window support from Alexey Kardashevskiy - This includes a patch to migration code code * Increase number of hotpluggable memory slots - Includes a change to KVM generic code, ACKed by Paolo * Another TCG fix for an SPE instruction