nova/releasenotes/notes/socket-pci-numa-affinity-policy-70b95b57b9f8f0c4.yaml
Artom Lifshitz b2471dd578 pci: implement the 'socket' NUMA affinity policy
This patch enables the 'socket' PCI NUMA affinity policy. The PCI
manager gets a new method to implement it, and the libvirt driver
starts reporting the necessary trait, enabling it to receive
instances with the 'socket' policy.

Implements: blueprint pci-socket-affinity
Change-Id: Ia875c9c3542ef4138d0d7a2c26c0cf49dcca0761
2021-03-10 17:06:03 -05:00

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---
features:
- |
A new PCI NUMA affinity policy is available. The
``hw:pci_numa_affinity_policy`` flavor extra spec and
``hw_pci_numa_affinity_policy`` image metadata property now accept a
``socket`` policy value. This value indicates that the PCI device must be
affined to the same host socket as at least one of the guest NUMA nodes.
For more information, see the `PCI Passthrough`__ guide.
.. __: https://docs.openstack.org/nova/latest/admin/pci-passthrough.html