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[zhou zhong <2061346@xxxxxxxxxxxxxxxxxx>]

Public bug reported:

Dear all, sorry for this confusion:

By my test, an instance attaches interface/disk over than the max config
num_pcie_ports in arm, from [1], I know that the max of that config
num_pcie_ports=28 is limited by QEMU, however, the number of PCIs
attached on my instance has far exceeded this limit.

Does nova limitation num_pcie_ports=28 need to update to a larger
number? Could anyone give me some advice?


[1] https://github.com/openstack/nova/blob/c199becf52267ba37c5191f6f82e29bb5232b607/nova/conf/libvirt.py#L809


My Openstack Version: W
Libvirt Version: 8.0.0 
Qemu Version: 6.2.0

** Affects: nova
     Importance: Undecided
         Status: New

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https://bugs.launchpad.net/bugs/2061346

Title:
  Does nova really need to limit number of pcie port to 28?

Status in OpenStack Compute (nova):
  New

Bug description:
  Dear all, sorry for this confusion:

  By my test, an instance attaches interface/disk over than the max
  config num_pcie_ports in arm, from [1], I know that the max of that
  config num_pcie_ports=28 is limited by QEMU, however, the number of
  PCIs attached on my instance has far exceeded this limit.

  Does nova limitation num_pcie_ports=28 need to update to a larger
  number? Could anyone give me some advice?

  
  [1] https://github.com/openstack/nova/blob/c199becf52267ba37c5191f6f82e29bb5232b607/nova/conf/libvirt.py#L809

  
  My Openstack Version: W
  Libvirt Version: 8.0.0 
  Qemu Version: 6.2.0

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