Description of problem:

today if you have a multi numa node guest then all pci devices are assocated with virtual guest numa node0. this if the sriov device is associated with the virtual numa node 1 on the host this lead to cross qpi traffic forcine all acess
to the device to go though virtual numa node 0.

to prevent this nova should create at leat 1 pci root complex per virual guest
numa node and map the pci device to the numa local pci root complex.

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