Hi Experts Release: Wallaby Distribution: Openstack-ansible I am working on enabling GPU computes through PCIpassthrough: I managed to test the GPU PCI passthrough with the direct configuration below. *GPU compute:* /etc/nova/nova.conf [pci] device_spec = { "vendor_id": "10de", "product_id": "25b6" } passthrough_whitelist = { "vendor_id": "10de", "product_id": "25b6" } alias = { "vendor_id": "10de", "product_id": "25b6", "device_type": "type-PCI", "name": "nvidia" } *Nova API container:* /etc/nova/nova.conf enabled_filters = AvailabilityZoneFilter,ComputeFilter,AggregateNumInstancesFilter,AggregateIoOpsFilter,ComputeCapabilitiesFilter,ImagePropertiesFilter,ServerGroupAntiAffinityFilter,ServerGroupAffinityFilter,NUMATopologyFilter, *PciPassthroughFilter* [pci] alias = { "vendor_id": "10de", "product_id": "25b6", "device_type": "type-PF", "name": "nvidia" } Now I need to put the configuration through openstack-ansible. So I need support for the same. *compute:* I intend to use hostvar for the compute configuration: /etc/openstack_deploy/host_vars/compute-<>.yml Can someone please confirm the parameters I need to set in this file and how to implement it? device_spec = ? passthrough_whitelist = ? nova_pci_alias: - '{ "name": "nvidia", "product_id": "25b6", "vendor_id": "10de" }' =====> how can I add *device_type field* here as per the mail.yaml it only have name,product_id and vendor_id field? Run openstack-ansible os-nova-install.yml --tags nova-config --limit <compute name> *For nova_api configuration,* I intend to use below: Below parameter in the user_variable file nova_scheduler_default_filters: - AvailabilityZoneFilter - ComputeFilter - AggregateInstanceExtraSpecsFilter - AggregateNumInstancesFilter - AggregateIoOpsFilter - ComputeCapabilitiesFilter - ImagePropertiesFilter - ServerGroupAntiAffinityFilter - ServerGroupAffinityFilter - NUMATopologyFilter - PciPassthroughFilter nova_pci_alias: - '{ "name": "nvidia", "product_id": "25b6", "vendor_id": "10de" }' =====> how can I add *device_type field here* as per the mail.yaml it only have name,product_id and vendor_id field? Execute: openstack-ansible os-nova-install.yml --tags nova-config --limit <nova api containers> Regards