releasenotes/notes/fix-q35-pcie-hotplug-libvirt-50b1879d61b1df72.yaml


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---
upgrade:
  - |
    Configure Nova libvirt.num_pcie_ports to 16 by default. Nova currently
    sets 'num_pcie_ports' to "0" (defaults to libvirt's "1"), which is
    not sufficient for hotplug use with 'q35' machine type.
fixes:
  - |
    Fixes an issue where 'q35' libvirt machine type VM could not hotplug
    more than one PCIe device at a time.