Merge remote-tracking branch 'remotes/dgibson/tags/ppc-for-4.0-20190109' into staging

ppc patch queue 2019-01-09

Second main pull request for qemu-4.0.  Highlights are:
 * Final parts of XIVE support for pseries (without KVM)
 * Preliminary work for PHB hotplug
 * Starting to use TCG vector operations

This includes some changes in the PCI core, which Michael Tsirkin
requested come through this tree, since they're primarily of interest
for ppc.

# gpg: Signature made Tue 08 Jan 2019 22:44:10 GMT
# gpg:                using RSA key 6C38CACA20D9B392
# gpg: Good signature from "David Gibson <david@gibson.dropbear.id.au>"
# gpg:                 aka "David Gibson (Red Hat) <dgibson@redhat.com>"
# gpg:                 aka "David Gibson (ozlabs.org) <dgibson@ozlabs.org>"
# gpg:                 aka "David Gibson (kernel.org) <dwg@kernel.org>"
# Primary key fingerprint: 75F4 6586 AE61 A66C C44E  87DC 6C38 CACA 20D9 B392

* remotes/dgibson/tags/ppc-for-4.0-20190109: (29 commits)
  spapr: enable XIVE MMIOs at reset
  spapr: introduce a new sPAPR IRQ backend supporting XIVE and XICS
  ppc/xics: allow ICSState to have an offset 0
  spapr: move the qemu_irq array under the machine
  pnv/psi: move the ICSState qemu_irq array under the PSI device model
  ppc: export the XICS and XIVE set_irq handlers
  spapr: return from post_load method when RTC import fails
  ppc: replace the 'Object *intc' by a 'ICPState *icp' pointer under the CPU
  ppc/xive: introduce a XiveTCTX pointer under PowerPCCPU
  spapr: modify the prototype of the cpu_intc_create() method
  spapr/xive: simplify the sPAPR IRQ qirq method for XIVE
  spapr_pci: Define SPAPR_MAX_PHBS in hw/pci-host/spapr.h
  pci: allow cleanup/unregistration of PCI root buses
  spapr: move spapr_create_phb() to core machine code
  MAINTAINERS: add qemu_vga.ndrv file entry for Mac machines
  MAINTAINERS: Add some missing ppc-related files
  target/ppc: replace AVR* macros with Vsr* macros
  target/ppc: move FP and VMX registers into aligned vsr register array
  target/ppc: merge ppc_vsr_t and ppc_avr_t union types
  target/ppc: switch FPR, VMX and VSX helpers to access data directly from cpu_env
  ...

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>