Merge remote-tracking branch 'remotes/mst/tags/for_upstream' into staging

virtio, pc, pci: fixes, cleanups, tests

A bunch of fixes all over the place.
ACPI tests will now run on more systems: might
introduce new failure reports but that's for
the best, isn't it?

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>

# gpg: Signature made Fri 12 Jul 2019 15:57:40 BST
# gpg:                using RSA key 281F0DB8D28D5469
# gpg: Good signature from "Michael S. Tsirkin <mst@kernel.org>" [full]
# gpg:                 aka "Michael S. Tsirkin <mst@redhat.com>" [full]
# Primary key fingerprint: 0270 606B 6F3C DF3D 0B17  0970 C350 3912 AFBE 8E67
#      Subkey fingerprint: 5D09 FD08 71C8 F85B 94CA  8A0D 281F 0DB8 D28D 5469

* remotes/mst/tags/for_upstream:
  virtio pmem: remove transitional names
  virtio pmem: remove memdev null check
  virtio pmem: fix wrong mem region condition
  tests: acpi: do not skip tests when IASL is not installed
  tests: acpi: do not require IASL for dumping AML blobs
  virtio-balloon: fix QEMU 4.0 config size migration incompatibility
  pcie: consistent names for function args
  xio3130_downstream: typo fix

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