Marcin Juszkiewicz 8bc7b950b7 libvirt: use 'host-passthrough' as default on AArch64 ... Nova is assuming 'host-model' for KVM/QEMU setup. On AArch64 it results in "libvirtError: unsupported configuration: CPU mode 'host-model' for aarch64 kvm domain on aarch64 host is not supported by hypervisor" message. AArch64 lacks 'host-model' support because neither libvirt nor QEMU are able to tell what the host CPU model exactly is. And there is no CPU description code for ARM(64) at this point. So instead we fallback to 'host-passthrough' to get VM instances running. This will completely break live migration, *unless* all the Compute nodes (running libvirtd) have *identical* CPUs. Small summary: https://marcin.juszkiewicz.com.pl/2018/01/04/today-i-was-fighting-with-nova-no-idea-who-won/ Closes-bug: #1741230 Co-authored-by: Kevin Zhao <Kevin.Zhao@arm.com> Co-authored-by: Marcin Juszkiewicz <marcin.juszkiewicz@linaro.org> Change-Id: Iafb5f1790d68489db73b9f0549333108c6426a00		2018-01-09 09:49:34 +00:00
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notes	libvirt: use 'host-passthrough' as default on AArch64	2018-01-09 09:49:34 +00:00
source	Remove setting of version/release from releasenotes	2017-11-16 19:35:53 +00:00