OK - some updates
I've tested with 2.5.0 and 3.5.0 of libvirt using OpenStack Ocata.
2.5.0 libvirt/qemu does not support host-model - only host-passthrough
so I agree that we should just being doing the right thing either in the
charm (as we've done for other non-x86 arch) or the nova codebase - my
preference is for the first as we avoid to much magic behaviour.
3.5.0 has the same limitation; I'm actually bumping into a different
issue for which I'll raise another bug for arm64 instances using that
libvirt stack.
tl;dr - lets just use host-passthrough and move on.
** Changed in: charm-nova-compute
Status: Confirmed => Triaged
** Changed in: charm-nova-compute
Importance: Critical => High
** Changed in: qemu (Ubuntu)
Status: Triaged => Won't Fix
** Changed in: libvirt (Ubuntu)
Status: Fix Released => Invalid
** Changed in: libvirt (Ubuntu)
Status: Invalid => Won't Fix
** Changed in: nova
Status: New => Invalid
** Changed in: charm-nova-compute
Assignee: Andrew McLeod (admcleod) => James Page (james-page)
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https://bugs.launchpad.net/bugs/1673467
Title:
[ocata] unsupported configuration: CPU mode 'host-model' for aarch64
kvm domain on aarch64 host is not supported by hypervisor
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