Merge remote-tracking branch 'remotes/dgibson/tags/ppc-for-5.2-20200908' into staging

ppc patch queue 2020-09-08

This supersedes ppc-for-5.2-20200904, it fixes a couple of bugs in
that PR and adds a few extra patches.

Next pull request for qemu-5.2.  The biggest thing here is the
generalization of ARM's start-powered-off machine property to all
targets.  This can fix a number of odd little edge cases where KVM
could run vcpus before they were properly initialized.  This does
include changes to a number of files that aren't normally in my
purview.  There are suitable Acked-by lines and Peter requested this
come in via my tree, since the most pressing requirement for it is in
pseries machines with the POWER secure virtual machine facility.

In addition we have:
 * Daniel Barboza's rework and clean up of pseries machine NUMA handling
 * Correction to behaviour of the nvdimm= generic machine property on
   pseries
 * An optimization to the allocation of XIVE interrupts on KVM
 * Some fixes for confused behaviour with kernel_irqchip when both
   XICS and XIVE are in play
 * Add HIOMAP comamnd to pnv flash
 * Properly advertise the fact that spapr_vscsi doesn't handle
   hotplugged disks
 * Some assorted minor enhancements

# gpg: Signature made Tue 08 Sep 2020 06:19:34 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-5.2-20200908: (33 commits)
  spapr_numa: use spapr_numa_get_vcpu_assoc() in home_node hcall
  spapr_numa: create a vcpu associativity helper
  spapr: move h_home_node_associativity to spapr_numa.c
  spapr_numa: move NVLink2 associativity handling to spapr_numa.c
  spapr, spapr_numa: move lookup-arrays handling to spapr_numa.c
  spapr, spapr_numa: handle vcpu ibm,associativity
  spapr: introduce SpaprMachineState::numa_assoc_array
  ppc/spapr_nvdimm: turn spapr_dt_nvdimm() static
  ppc: introducing spapr_numa.c NUMA code helper
  hw/ppc/ppc4xx_pci: Replace pointless warning by assert()
  hw/ppc/ppc4xx_pci: Use ARRAY_SIZE() instead of magic value
  target/s390x: Use start-powered-off CPUState property
  sparc/sun4m: Use start-powered-off CPUState property
  sparc/sun4m: Don't set cs->halted = 0 in main_cpu_reset()
  mips/cps: Use start-powered-off CPUState property
  ppc/e500: Use start-powered-off CPUState property
  ppc/spapr: Use start-powered-off CPUState property
  target/arm: Move setting of CPU halted state to generic code
  target/arm: Move start-powered-off property to generic CPUState
  ppc/spapr_nvdimm: do not enable support with 'nvdimm=off'
  ...

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

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