Merge remote-tracking branch 'dgibson/tags/ppc-for-2.8-20161123' into staging

Merge remote-tracking branch 'dgibson/tags/ppc-for-2.8-20161123' into staging

ppc patch queue 2016-11-23

Here's the first set of 2.8 hard freeze bugfixes for ppc.

The biggest thing here is a batch of fixes for migration breakages in
both 2.7 and current 2.8.  Alas, there is at least one more migration
problem, which prevents memory unplug after a migration.  I hoped to
include a fix for that here, but it turned out to have some problems
bigger than those it was solving.  So, I expect at least one more hard
freeze pull request.

There are also a few other assorted bug fixes.

# gpg: Signature made Wed 23 Nov 2016 02:25:42 AM GMT
# gpg:                using RSA key 0x6C38CACA20D9B392
# gpg: Good signature from "David Gibson <david@gibson.dropbear.id.au>"
# gpg:                 aka "David Gibson (kernel.org) <dwg@kernel.org>"
# gpg:                 aka "David Gibson (Red Hat) <dgibson@redhat.com>"
# gpg:                 aka "David Gibson (ozlabs.org) <dgibson@ozlabs.org>"
# Primary key fingerprint: 75F4 6586 AE61 A66C C44E  87DC 6C38 CACA 20D9 B392

* dgibson/tags/ppc-for-2.8-20161123:
  spapr: Fix 2.7<->2.8 migration of PCI host bridge
  Revert "spapr: Fix migration of PCI host bridges from qemu-2.7"
  target-ppc: Allow eventual removal of old migration mistakes
  migration: Add VMSTATE_UINTTL_TEST()
  target-ppc: Fix CPU migration from qemu-2.6 <-> later versions
  ppc: Make uninorth interrupt swizzling identical to Grackle
  target-ppc: fix index array of national digits
  hw/char/spapr_vty: Return amount of free buffer entries in vty_can_receive()
  ppc: BOOK3E: nothing should be done when MSR:PR is set
  spapr: migration support for CAS-negotiated option vectors
  tests/postcopy: Use KVM on ppc64 only if it is KVM-HV

Message-id: 1479869383-16162-1-git-send-email-david@gibson.dropbear.id.au
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>