b8e77deeef
When using the 'q35' machine type, by default, it allows only a single PCIe device to be hotplugged. Nova currently sets 'num_pcie_ports' to "0" (defaults to libvirt's "1"), which is not sufficient for hotplug use. The max value is 28, but 16 is enough in most cases. More info please check * [0] https://libvirt.org/pci-hotplug.html * [1] https://marcin.juszkiewicz.com.pl/2018/02/19/hotplug-in-vm-easy-to-say/ * [2] https://review.opendev.org/c/openstack/nova/+/545034 Co-Authored-By: Bartosz Bezak <bartosz@stackhpc.com> Change-Id: I7b8063566837aeb947927b7d6858417982b63deb Closes-Bug: 1909063
11 lines
352 B
YAML
11 lines
352 B
YAML
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upgrade:
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Configure Nova libvirt.num_pcie_ports to 16 by default. Nova currently
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sets 'num_pcie_ports' to "0" (defaults to libvirt's "1"), which is
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not sufficient for hotplug use with 'q35' machine type.
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fixes:
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Fixes an issue where 'q35' libvirt machine type VM could not hotplug
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more than one PCIe device at a time.
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