Re: [libvirt] Question about using cpu mode "host-model" while providing a cpu model name

Hi I have noticed something that may be misconstrued regarding the libvirt domain xml format for defining a cpu model. There seems to be a misalignment where the libvirt documentation states something that is not supported, but libvirt itself gives no clear indication of such. This is regarding the cpu mode "host-model" and providing a cpu model name between the <model> tags. >From the libvirt docs under header "CPU model and topology" paragraph "cpu" subparagraph "host-model", the following rule is defined (bolded or between asterisks): "... The match attribute can't be used in this mode. *Specifying CPU model is not supported* either, but model's fallback attribute may still be used. ..." https://libvirt.org/formatdomain.html#elementsCPU The above rule reads as "if mode is 'host-model' (and the architecture is not PowerPC) then specifying a model name should not be allowed". However, this is not the observed behavior. For example, I can define and start a guest with the following xml snippet without any issues: <cpu mode='host-model'> <model>cpu-name</model> </cpu> Which seems to contradict what the documentation states.