Comment 1 for bug 1999814

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Edward Hope-Morley (hopem) wrote : Re: Allow for specifying common baseline CPU model with disabled feature

The reason this doesn't currently work is because Nova does not take the cpu-extra-flags into consideration when checking the host cpu model against one provided in cpu-models [1]. I believe it should be safe to do that so we should try to get that added.

The point about capabilities vs. domcapabilities is interesting and if the latter is the more accurate source of information, Nova should probably be using it.

[1] https://github.com/openstack/nova/blob/8a476061c5e034016668cd9e5a20c4430ef6b68d/nova/virt/libvirt/driver.py#L987