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

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

pc,virtio,pci: fixes, tests

Fixes all over the place, a new test.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
# gpg: Signature made Tue 23 Feb 2021 16:00:29 GMT
# gpg:                using RSA key 5D09FD0871C8F85B94CA8A0D281F0DB8D28D5469
# gpg:                issuer "mst@redhat.com"
# 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:
  qtest/acpi/bios-tables-test: update acpi tables
  acpi: add test case for -no-hpet
  i386: acpi: Don't build HPET ACPI entry if HPET is disabled
  hw/i386: declare ACPI mother board resource for MMCONFIG region
  acpi: add test case for smm unsupported -machine smm=off
  acpi: set fadt.smi_cmd to zero when SMM is not supported
  acpi/core: always set SCI_EN when SMM isn't supported
  ich9, piix4: add property, smm-compat, to keep compatibility of SMM
  qtest: update tests/qtest/bios-tables-test-allowed-diff.h
  checkpatch: don't emit warning on newly created acpi data files
  tests/data/acpi/virt/DSDT.pxb: update with _CCA
  acpi/gpex: Fix cca attribute check for pxb device
  acpi: Allow pxb DSDT acpi table changes
  pcie: don't set link state active if the slot is empty
  failover: really display a warning when the primary device is not found
  virtio-net: add missing object_unref()
  pci: cleanup failover sanity check

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