Here in 11.1 and 11.2 we suggest "sudo podman exec -it nova_libvirt virsh cpu-models <arch>":

https://access.redhat.com/documentation/en-us/red_hat_openstack_platform/17.1/html/configuring_the_compute_service_for_instance_creation/assembly_configuring-cpu-feature-flags-for-instances_instance-cpu-feature-flags

Engineering suggests using "nova_virtqemud" container to run virsh commands now.

Additionally, in 15.1 we suggest to run "virsh dumpxml" without mentioning podman with any container first:

https://access.redhat.com/documentation/en-us/red_hat_openstack_platform/17.1/html/configuring_the_compute_service_for_instance_creation/assembly_configuring-virtual-gpus-for-instances_vgpu

This is shown in 17.0 docs too but I can't choose it below in "Affects Versions" and I'm not sure if it does worth fixing it.