應該改 nova.conf 將 [libvirt] 內的 cpu_mode 改成 host-passthrough
應該只有影響 ocata
Ref. OpenStack KVM
[ocata] unsupported configuration: CPU mode ‘host-model’ for aarch64 kvm domain on aarch64 host is not supported by hypervisor
程式解法 aarch64: set default cpu_mode to host-passthrough
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