** Changed in: nova
     Assignee: Stephen Finucane (stephenfinucane) => Marcin Juszkiewicz (hrw)

** Changed in: nova
   Importance: Undecided => Medium

** Also affects: nova/pike
   Importance: Undecided
       Status: New

** Changed in: nova/pike
     Assignee: (unassigned) => Marcin Juszkiewicz (hrw)

** Changed in: nova/pike
       Status: New => In Progress

** Changed in: nova/pike
   Importance: Undecided => Medium

** Tags added: aarch64 libvirt

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  libvirt: use 'host-passthrough' as default on AArch64

Status in OpenStack Compute (nova):
  Fix Released
Status in OpenStack Compute (nova) pike series:
  In Progress

Bug description:
  At Linaro we have several instances of OpenStack running. Some are
  public, some private. Some at Newton, some at Pike and now some on

  And always we have to set cpu_mode = 'host-passthrough' in [libvirt]
  section of nova.conf file.

  As we use Kolla to build and deploy Queens I added workaround there
  which sets cpu_mode in proper way for AArch64. But this is

  So I looked at code of Nova and created some quick hack:

  It works for us but may not be proper way of doing it.

  We use Debian 'stretch' as host system with libvirt 3.10.0 backported
  from 'testing'.

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