Merge tag 'for_upstream' of git://git.kernel.org/pub/scm/virt/kvm/mst/qemu into staging

virtio,pci,pc: bugfixes

Lots of small fixes all over the place.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
# gpg: Signature made Mon 29 Nov 2021 02:50:06 PM CET
# 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]

* tag 'for_upstream' of git://git.kernel.org/pub/scm/virt/kvm/mst/qemu:
  Fix bad overflow check in hw/pci/pcie.c
  intel-iommu: ignore leaf SNP bit in scalable mode
  virtio-balloon: correct used length
  virtio-balloon: process all in sgs for free_page_vq
  vdpa: Add dummy receive callback
  failover: fix unplug pending detection
  virtio-mmio : fix the crash in the vm shutdown

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>