ppc patch queue for 2019-11-26 Here's the first 4.2 hard freeze pull request from me. This has: * A fix for some testcases that cause errors on older host kernels (e.g. RHEL7), with our new default configuration of VSMT mode * Changes to make VFIO devices interact properly with change of irq chip caused by PAPR feature negotiation. This is more involved than I would like, but it's a problem in real use cases and I can't see an easier way to handle it. * Fix an error with ms6522 counters for the g3beige machine * Fix a coverity warning