Comment 4 for bug 1853200

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Corey Bryant (corey.bryant) wrote :

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/