Which Openstack release supports PCI expander?

Solution In Progress - Updated -


  • The customer wants to learn here is which openstack release supports PCI expander. Could you please share which openstack release supports this ?

PXB is a "light-weight" host bridge in the same PCI domain
as the main host bridge whose purpose is to enable
the main host bridge to support multiple PCI root buses.
It is implemented only for i440fx and can be placed only
on bus 0 (pci.0).

As opposed to PCI-2-PCI bridge's secondary bus, PXB's bus
is a primary bus and can be associated with a NUMA node
(different from the main host bridge) allowing the guest OS
to recognize the proximity of a pass-through device to
other resources as RAM and CPUs.


  • Red Hat OpenStack Platform 13.0 (RHOSP)

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