There's a related fix for enabling CPU feature flags that landed in upstream nova and charm-nova-compute via LP: #1750829 as a result of Meltdown.
There's mention in the upstream fix [1] that a future patch will allow disabling of CPU feature flag but I'm not sure if that has landed. I'll dig some more to see.
Fyi the config for the nova-compute charm that corresonds to this change is cpu-model-extra-flags, defined as a space delimited list of specific CPU flags for libvirt/
There's a related fix for enabling CPU feature flags that landed in upstream nova and charm-nova-compute via LP: #1750829 as a result of Meltdown.
There's mention in the upstream fix [1] that a future patch will allow disabling of CPU feature flag but I'm not sure if that has landed. I'll dig some more to see.
[1] https:/ /review. opendev. org/#/c/ 534384/
Fyi the config for the nova-compute charm that corresonds to this change is cpu-model- extra-flags, defined as a space delimited list of specific CPU flags for libvirt/