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[Balazs Gibizer <2115726@xxxxxxxxxxxxxxxxxx>]

Public bug reported:

This is a somewhat counter intuitive behavior for the user. But nova
uses the address and the vendor_id product_id fields as the filter for
matching devices while using the rest of the fields to enhance the
matched devices. This way and empty device_spec, or a device_spec with
only enhancing attributes will match all the devices on the hypervisor.

See the reproduction in
https://paste.opendev.org/show/bhtcbPjK4rJGL36JY3kI/

I think it worth nothing this to the doc.

Also PCI in Placement carries over this behavior as all the matched
devices reported to placement automatically.

** Affects: nova
     Importance: Undecided
         Status: New

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https://bugs.launchpad.net/bugs/2115726

Title:
  Clarify in the doc that [pci]device_spec = {} matches all PCI devices
  on the host

Status in OpenStack Compute (nova):
  New

Bug description:
  This is a somewhat counter intuitive behavior for the user. But nova
  uses the address and the vendor_id product_id fields as the filter for
  matching devices while using the rest of the fields to enhance the
  matched devices. This way and empty device_spec, or a device_spec with
  only enhancing attributes will match all the devices on the
  hypervisor.

  See the reproduction in
  https://paste.opendev.org/show/bhtcbPjK4rJGL36JY3kI/

  I think it worth nothing this to the doc.

  Also PCI in Placement carries over this behavior as all the matched
  devices reported to placement automatically.

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