Merge remote-tracking branch 'remotes/dgibson/tags/ppc-for-4.2-20191024' into staging

Merge remote-tracking branch 'remotes/dgibson/tags/ppc-for-4.2-20191024' into staging

ppc patch queue 2019-10-24

Last pull request before soft freeze.
  * Lots of fixes and cleanups for spapr interrupt controllers
  * More SLOF updates to fix problems with full FDT rendering at CAS
    time (alas, more yet are to come)
  * A few other assorted changes

This isn't quite as well tested as I usually try to do before a pull
request.  But I've been sick and running into some other difficulties,
and wanted to get this sent out before heading towards KVM forum.

# gpg: Signature made Thu 24 Oct 2019 09:14:31 BST
# gpg:                using RSA key 75F46586AE61A66CC44E87DC6C38CACA20D9B392
# gpg: Good signature from "David Gibson <david@gibson.dropbear.id.au>" [full]
# gpg:                 aka "David Gibson (Red Hat) <dgibson@redhat.com>" [full]
# gpg:                 aka "David Gibson (ozlabs.org) <dgibson@ozlabs.org>" [full]
# gpg:                 aka "David Gibson (kernel.org) <dwg@kernel.org>" [unknown]
# Primary key fingerprint: 75F4 6586 AE61 A66C C44E  87DC 6C38 CACA 20D9 B392

* remotes/dgibson/tags/ppc-for-4.2-20191024: (28 commits)
  spapr/xive: Set the OS CAM line at reset
  ppc/pnv: Fix naming of routines realizing the CPUs
  ppc: Reset the interrupt presenter from the CPU reset handler
  ppc/pnv: Add a PnvChip pointer to PnvCore
  ppc/pnv: Introduce a PnvCore reset handler
  spapr_cpu_core: Implement DeviceClass::reset
  spapr: move CPU reset after presenter creation
  spapr: Don't request to unplug the same core twice
  pseries: Update SLOF firmware image
  spapr: Move SpaprIrq::nr_xirqs to SpaprMachineClass
  spapr: Remove SpaprIrq::nr_msis
  spapr, xics, xive: Move SpaprIrq::post_load hook to backends
  spapr, xics, xive: Move SpaprIrq::reset hook logic into activate/deactivate
  spapr: Remove SpaprIrq::init_kvm hook
  spapr, xics, xive: Match signatures for XICS and XIVE KVM connect routines
  spapr, xics, xive: Move dt_populate from SpaprIrq to SpaprInterruptController
  spapr, xics, xive: Move print_info from SpaprIrq to SpaprInterruptController
  spapr, xics, xive: Move set_irq from SpaprIrq to SpaprInterruptController
  spapr: Formalize notion of active interrupt controller
  spapr, xics, xive: Move irq claim and free from SpaprIrq to SpaprInterruptController
  ...

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