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[Bug 1673467] [NEW] [ocata] unsupported configuration: CPU mode 'host-model' for aarch64 kvm domain on aarch64 host is not supported by hypervisor

To: yahoo-eng-team@xxxxxxxxxxxxxxxxxxx
From: Larry Michel <larry.michel@xxxxxxxxxxxxx>
Date: Thu, 16 Mar 2017 14:16:05 -0000
Reply-to: Bug 1673467 <1673467@xxxxxxxxxxxxxxxxxx>
Sender: bounces@xxxxxxxxxxxxx
Public bug reported:

We hit this error in Ocata while trying to launch an arm64 instance:

2017-03-16 08:01:42.329 144245 ERROR nova.virt.libvirt.guest [req-2ad2d5d9-696d-4baa-a071-756e460ca3de 8f431f83f7e44ef1a084e7e27b40a685 a904dd389c5d4817a4d95b8f3268cf4d - - -] Error launching a defined domain with XML: <domain type='kvm'>
  <name>instance-00000001</name>
  <uuid>220bec1b-8907-4da9-9862-9cc2354abf39</uuid>
  <metadata>
    <nova:instance xmlns:nova="http://openstack.org/xmlns/libvirt/nova/1.0";>
      <nova:package version="15.0.0"/>
      <nova:name>guestOS-test-arm64-kvm-xenial-ci_oil_slave14_0</nova:name>
      <nova:creationTime>2017-03-16 08:01:38</nova:creationTime>
      <nova:flavor name="m1.small">
        <nova:memory>2048</nova:memory>
        <nova:disk>20</nova:disk>
        <nova:swap>0</nova:swap>
        <nova:ephemeral>0</nova:ephemeral>
        <nova:vcpus>1</nova:vcpus>
      </nova:flavor>
      <nova:owner>
        <nova:user uuid="8f431f83f7e44ef1a084e7e27b40a685">admin</nova:user>
        <nova:project uuid="a904dd389c5d4817a4d95b8f3268cf4d">admin</nova:project>
      </nova:owner>
      <nova:root type="image" uuid="4e864421-efc0-4c39-8b49-d619356f72de"/>
    </nova:instance>
  </metadata>
  <memory unit='KiB'>2097152</memory>
  <currentMemory unit='KiB'>2097152</currentMemory>
  <vcpu placement='static'>1</vcpu>
  <cputune>
    <shares>1024</shares>
  </cputune>
  <os>
    <type arch='aarch64' machine='virt-2.8'>hvm</type>
    <loader readonly='yes' type='pflash'>/usr/share/AAVMF/AAVMF_CODE.fd</loader>
    <nvram>/var/lib/libvirt/qemu/nvram/instance-00000001_VARS.fd</nvram>
    <boot dev='hd'/>
  </os>
  <features>
    <acpi/>
    <apic/>
    <gic version='3'/>
  </features>
  <cpu mode='host-model'>
    <model fallback='allow'/>
    <topology sockets='1' cores='1' threads='1'/>
  </cpu>
  <clock offset='utc'>
    <timer name='pit' tickpolicy='delay'/>
    <timer name='rtc' tickpolicy='catchup'/>
  </clock>
  <on_poweroff>destroy</on_poweroff>
  <on_reboot>restart</on_reboot>
  <on_crash>destroy</on_crash>
  <devices>
    <emulator>/usr/bin/kvm</emulator>
    <disk type='file' device='disk'>
      <driver name='qemu' type='qcow2' cache='none'/>
      <source file='/var/lib/nova/instances/220bec1b-8907-4da9-9862-9cc2354abf39/disk'/>
      <target dev='vda' bus='virtio'/>
      <address type='virtio-mmio'/>
    </disk>
    <controller type='pci' index='0' model='pcie-root'/>
    <interface type='bridge'>
      <mac address='fa:16:3e:74:b0:97'/>
      <source bridge='qbr9a95f1e8-d5'/>
      <target dev='tap9a95f1e8-d5'/>
      <model type='virtio'/>
      <address type='virtio-mmio'/>
    </interface>
    <serial type='pty'>
      <log file='/var/lib/nova/instances/220bec1b-8907-4da9-9862-9cc2354abf39/console.log' append='off'/>
      <target port='0'/>
    </serial>
    <console type='pty'>
      <log file='/var/lib/nova/instances/220bec1b-8907-4da9-9862-9cc2354abf39/console.log' append='off'/>
      <target type='serial' port='0'/>
    </console>
    <memballoon model='virtio'>
      <stats period='10'/>
      <address type='virtio-mmio'/>
    </memballoon>
  </devices>
</domain>
             
2017-03-16 08:01:42.333 144245 ERROR nova.virt.libvirt.driver [req-2ad2d5d9-696d-4baa-a071-756e460ca3de 8f431f83f7e44ef1a084e7e27b40a685 a904dd389c5d4817a4d95b8f3268cf4d - - -] [instance: 220bec1b-8907-4da9-9862-9cc2354abf39] Failed to start libvirt guest
2017-03-16 08:01:43.522 144245 ERROR nova.compute.manager [instance: 220bec1b-8907-4da9-9862-9cc2354abf39]   File "/usr/lib/python2.7/dist-packages/nova/compute/manager.py", line 1930, in _build_and_run_instance
2017-03-16 08:01:43.522 144245 ERROR nova.compute.manager [instance: 220bec1b-8907-4da9-9862-9cc2354abf39]     block_device_info=block_device_info)
2017-03-16 08:01:43.522 144245 ERROR nova.compute.manager [instance: 220bec1b-8907-4da9-9862-9cc2354abf39]   File "/usr/lib/python2.7/dist-packages/nova/virt/libvirt/driver.py", line 2688, in spawn
2017-03-16 08:01:43.522 144245 ERROR nova.compute.manager [instance: 220bec1b-8907-4da9-9862-9cc2354abf39]     destroy_disks_on_failure=True)
2017-03-16 08:01:43.522 144245 ERROR nova.compute.manager [instance: 220bec1b-8907-4da9-9862-9cc2354abf39]   File "/usr/lib/python2.7/dist-packages/nova/virt/libvirt/driver.py", line 5099, in _create_domain_and_network
2017-03-16 08:01:43.522 144245 ERROR nova.compute.manager [instance: 220bec1b-8907-4da9-9862-9cc2354abf39]     destroy_disks_on_failure)
2017-03-16 08:01:43.522 144245 ERROR nova.compute.manager [instance: 220bec1b-8907-4da9-9862-9cc2354abf39]   File "/usr/lib/python2.7/dist-packages/oslo_utils/excutils.py", line 220, in __exit__
2017-03-16 08:01:43.522 144245 ERROR nova.compute.manager [instance: 220bec1b-8907-4da9-9862-9cc2354abf39]     self.force_reraise()
2017-03-16 08:01:43.522 144245 ERROR nova.compute.manager [instance: 220bec1b-8907-4da9-9862-9cc2354abf39]   File "/usr/lib/python2.7/dist-packages/oslo_utils/excutils.py", line 196, in force_reraise
2017-03-16 08:01:43.522 144245 ERROR nova.compute.manager [instance: 220bec1b-8907-4da9-9862-9cc2354abf39]     six.reraise(self.type_, self.value, self.tb)
2017-03-16 08:01:43.522 144245 ERROR nova.compute.manager [instance: 220bec1b-8907-4da9-9862-9cc2354abf39]   File "/usr/lib/python2.7/dist-packages/nova/virt/libvirt/driver.py", line 5071, in _create_domain_and_network
2017-03-16 08:01:43.522 144245 ERROR nova.compute.manager [instance: 220bec1b-8907-4da9-9862-9cc2354abf39]     post_xml_callback=post_xml_callback)
2017-03-16 08:01:43.522 144245 ERROR nova.compute.manager [instance: 220bec1b-8907-4da9-9862-9cc2354abf39]   File "/usr/lib/python2.7/dist-packages/nova/virt/libvirt/driver.py", line 4989, in _create_domain
2017-03-16 08:01:43.522 144245 ERROR nova.compute.manager [instance: 220bec1b-8907-4da9-9862-9cc2354abf39]     guest.launch(pause=pause)
2017-03-16 08:01:43.522 144245 ERROR nova.compute.manager [instance: 220bec1b-8907-4da9-9862-9cc2354abf39]     self._encoded_xml, errors='ignore')
2017-03-16 08:01:43.522 144245 ERROR nova.compute.manager [instance: 220bec1b-8907-4da9-9862-9cc2354abf39]   File "/usr/lib/python2.7/dist-packages/oslo_utils/excutils.py", line 220, in __exit__
2017-03-16 08:01:43.522 144245 ERROR nova.compute.manager [instance: 220bec1b-8907-4da9-9862-9cc2354abf39]     self.force_reraise()
2017-03-16 08:01:43.522 144245 ERROR nova.compute.manager [instance: 220bec1b-8907-4da9-9862-9cc2354abf39]   File "/usr/lib/python2.7/dist-packages/oslo_utils/excutils.py", line 196, in force_reraise
2017-03-16 08:01:43.522 144245 ERROR nova.compute.manager [instance: 220bec1b-8907-4da9-9862-9cc2354abf39]     six.reraise(self.type_, self.value, self.tb)
2017-03-16 08:01:43.522 144245 ERROR nova.compute.manager [instance: 220bec1b-8907-4da9-9862-9cc2354abf39]   File "/usr/lib/python2.7/dist-packages/nova/virt/libvirt/guest.py", line 140, in launch
2017-03-16 08:01:43.522 144245 ERROR nova.compute.manager [instance: 220bec1b-8907-4da9-9862-9cc2354abf39]     return self._domain.createWithFlags(flags)
2017-03-16 08:01:43.522 144245 ERROR nova.compute.manager [instance: 220bec1b-8907-4da9-9862-9cc2354abf39]   File "/usr/lib/python2.7/dist-packages/eventlet/tpool.py", line 186, in doit
2017-03-16 08:01:43.522 144245 ERROR nova.compute.manager [instance: 220bec1b-8907-4da9-9862-9cc2354abf39]     result = proxy_call(self._autowrap, f, *args, **kwargs)
2017-03-16 08:01:43.522 144245 ERROR nova.compute.manager [instance: 220bec1b-8907-4da9-9862-9cc2354abf39]   File "/usr/lib/python2.7/dist-packages/eventlet/tpool.py", line 144, in proxy_call
2017-03-16 08:01:43.522 144245 ERROR nova.compute.manager [instance: 220bec1b-8907-4da9-9862-9cc2354abf39]     rv = execute(f, *args, **kwargs)
2017-03-16 08:01:43.522 144245 ERROR nova.compute.manager [instance: 220bec1b-8907-4da9-9862-9cc2354abf39]   File "/usr/lib/python2.7/dist-packages/eventlet/tpool.py", line 125, in execute
2017-03-16 08:01:43.522 144245 ERROR nova.compute.manager [instance: 220bec1b-8907-4da9-9862-9cc2354abf39]     six.reraise(c, e, tb)
2017-03-16 08:01:43.522 144245 ERROR nova.compute.manager [instance: 220bec1b-8907-4da9-9862-9cc2354abf39]   File "/usr/lib/python2.7/dist-packages/eventlet/tpool.py", line 83, in tworker
2017-03-16 08:01:43.522 144245 ERROR nova.compute.manager [instance: 220bec1b-8907-4da9-9862-9cc2354abf39]     rv = meth(*args, **kwargs)
2017-03-16 08:01:43.522 144245 ERROR nova.compute.manager [instance: 220bec1b-8907-4da9-9862-9cc2354abf39]   File "/usr/lib/python2.7/dist-packages/libvirt.py", line 1065, in createWithFlags
2017-03-16 08:01:43.522 144245 ERROR nova.compute.manager [instance: 220bec1b-8907-4da9-9862-9cc2354abf39]     if ret == -1: raise libvirtError ('virDomainCreateWithFlags() failed', dom=self)
2017-03-16 08:01:43.522 144245 ERROR nova.compute.manager [instance: 220bec1b-8907-4da9-9862-9cc2354abf39] libvirtError: unsupported configuration: CPU mode 'host-model' for aarch64 kvm domain on aarch64 host is not supported by hypervisor
2017-03-16 08:01:43.522 144245 ERROR nova.compute.manager [instance: 220bec1b-8907-4da9-9862-9cc2354abf39]

** Affects: nova
     Importance: Undecided
         Status: New

** Affects: libvirt (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: oil

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

-- 
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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

Status in OpenStack Compute (nova):
  New
Status in libvirt package in Ubuntu:
  New

Bug description:
  We hit this error in Ocata while trying to launch an arm64 instance:

  2017-03-16 08:01:42.329 144245 ERROR nova.virt.libvirt.guest [req-2ad2d5d9-696d-4baa-a071-756e460ca3de 8f431f83f7e44ef1a084e7e27b40a685 a904dd389c5d4817a4d95b8f3268cf4d - - -] Error launching a defined domain with XML: <domain type='kvm'>
    <name>instance-00000001</name>
    <uuid>220bec1b-8907-4da9-9862-9cc2354abf39</uuid>
    <metadata>
      <nova:instance xmlns:nova="http://openstack.org/xmlns/libvirt/nova/1.0";>
        <nova:package version="15.0.0"/>
        <nova:name>guestOS-test-arm64-kvm-xenial-ci_oil_slave14_0</nova:name>
        <nova:creationTime>2017-03-16 08:01:38</nova:creationTime>
        <nova:flavor name="m1.small">
          <nova:memory>2048</nova:memory>
          <nova:disk>20</nova:disk>
          <nova:swap>0</nova:swap>
          <nova:ephemeral>0</nova:ephemeral>
          <nova:vcpus>1</nova:vcpus>
        </nova:flavor>
        <nova:owner>
          <nova:user uuid="8f431f83f7e44ef1a084e7e27b40a685">admin</nova:user>
          <nova:project uuid="a904dd389c5d4817a4d95b8f3268cf4d">admin</nova:project>
        </nova:owner>
        <nova:root type="image" uuid="4e864421-efc0-4c39-8b49-d619356f72de"/>
      </nova:instance>
    </metadata>
    <memory unit='KiB'>2097152</memory>
    <currentMemory unit='KiB'>2097152</currentMemory>
    <vcpu placement='static'>1</vcpu>
    <cputune>
      <shares>1024</shares>
    </cputune>
    <os>
      <type arch='aarch64' machine='virt-2.8'>hvm</type>
      <loader readonly='yes' type='pflash'>/usr/share/AAVMF/AAVMF_CODE.fd</loader>
      <nvram>/var/lib/libvirt/qemu/nvram/instance-00000001_VARS.fd</nvram>
      <boot dev='hd'/>
    </os>
    <features>
      <acpi/>
      <apic/>
      <gic version='3'/>
    </features>
    <cpu mode='host-model'>
      <model fallback='allow'/>
      <topology sockets='1' cores='1' threads='1'/>
    </cpu>
    <clock offset='utc'>
      <timer name='pit' tickpolicy='delay'/>
      <timer name='rtc' tickpolicy='catchup'/>
    </clock>
    <on_poweroff>destroy</on_poweroff>
    <on_reboot>restart</on_reboot>
    <on_crash>destroy</on_crash>
    <devices>
      <emulator>/usr/bin/kvm</emulator>
      <disk type='file' device='disk'>
        <driver name='qemu' type='qcow2' cache='none'/>
        <source file='/var/lib/nova/instances/220bec1b-8907-4da9-9862-9cc2354abf39/disk'/>
        <target dev='vda' bus='virtio'/>
        <address type='virtio-mmio'/>
      </disk>
      <controller type='pci' index='0' model='pcie-root'/>
      <interface type='bridge'>
        <mac address='fa:16:3e:74:b0:97'/>
        <source bridge='qbr9a95f1e8-d5'/>
        <target dev='tap9a95f1e8-d5'/>
        <model type='virtio'/>
        <address type='virtio-mmio'/>
      </interface>
      <serial type='pty'>
        <log file='/var/lib/nova/instances/220bec1b-8907-4da9-9862-9cc2354abf39/console.log' append='off'/>
        <target port='0'/>
      </serial>
      <console type='pty'>
        <log file='/var/lib/nova/instances/220bec1b-8907-4da9-9862-9cc2354abf39/console.log' append='off'/>
        <target type='serial' port='0'/>
      </console>
      <memballoon model='virtio'>
        <stats period='10'/>
        <address type='virtio-mmio'/>
      </memballoon>
    </devices>
  </domain>
               
  2017-03-16 08:01:42.333 144245 ERROR nova.virt.libvirt.driver [req-2ad2d5d9-696d-4baa-a071-756e460ca3de 8f431f83f7e44ef1a084e7e27b40a685 a904dd389c5d4817a4d95b8f3268cf4d - - -] [instance: 220bec1b-8907-4da9-9862-9cc2354abf39] Failed to start libvirt guest
  2017-03-16 08:01:43.522 144245 ERROR nova.compute.manager [instance: 220bec1b-8907-4da9-9862-9cc2354abf39]   File "/usr/lib/python2.7/dist-packages/nova/compute/manager.py", line 1930, in _build_and_run_instance
  2017-03-16 08:01:43.522 144245 ERROR nova.compute.manager [instance: 220bec1b-8907-4da9-9862-9cc2354abf39]     block_device_info=block_device_info)
  2017-03-16 08:01:43.522 144245 ERROR nova.compute.manager [instance: 220bec1b-8907-4da9-9862-9cc2354abf39]   File "/usr/lib/python2.7/dist-packages/nova/virt/libvirt/driver.py", line 2688, in spawn
  2017-03-16 08:01:43.522 144245 ERROR nova.compute.manager [instance: 220bec1b-8907-4da9-9862-9cc2354abf39]     destroy_disks_on_failure=True)
  2017-03-16 08:01:43.522 144245 ERROR nova.compute.manager [instance: 220bec1b-8907-4da9-9862-9cc2354abf39]   File "/usr/lib/python2.7/dist-packages/nova/virt/libvirt/driver.py", line 5099, in _create_domain_and_network
  2017-03-16 08:01:43.522 144245 ERROR nova.compute.manager [instance: 220bec1b-8907-4da9-9862-9cc2354abf39]     destroy_disks_on_failure)
  2017-03-16 08:01:43.522 144245 ERROR nova.compute.manager [instance: 220bec1b-8907-4da9-9862-9cc2354abf39]   File "/usr/lib/python2.7/dist-packages/oslo_utils/excutils.py", line 220, in __exit__
  2017-03-16 08:01:43.522 144245 ERROR nova.compute.manager [instance: 220bec1b-8907-4da9-9862-9cc2354abf39]     self.force_reraise()
  2017-03-16 08:01:43.522 144245 ERROR nova.compute.manager [instance: 220bec1b-8907-4da9-9862-9cc2354abf39]   File "/usr/lib/python2.7/dist-packages/oslo_utils/excutils.py", line 196, in force_reraise
  2017-03-16 08:01:43.522 144245 ERROR nova.compute.manager [instance: 220bec1b-8907-4da9-9862-9cc2354abf39]     six.reraise(self.type_, self.value, self.tb)
  2017-03-16 08:01:43.522 144245 ERROR nova.compute.manager [instance: 220bec1b-8907-4da9-9862-9cc2354abf39]   File "/usr/lib/python2.7/dist-packages/nova/virt/libvirt/driver.py", line 5071, in _create_domain_and_network
  2017-03-16 08:01:43.522 144245 ERROR nova.compute.manager [instance: 220bec1b-8907-4da9-9862-9cc2354abf39]     post_xml_callback=post_xml_callback)
  2017-03-16 08:01:43.522 144245 ERROR nova.compute.manager [instance: 220bec1b-8907-4da9-9862-9cc2354abf39]   File "/usr/lib/python2.7/dist-packages/nova/virt/libvirt/driver.py", line 4989, in _create_domain
  2017-03-16 08:01:43.522 144245 ERROR nova.compute.manager [instance: 220bec1b-8907-4da9-9862-9cc2354abf39]     guest.launch(pause=pause)
  2017-03-16 08:01:43.522 144245 ERROR nova.compute.manager [instance: 220bec1b-8907-4da9-9862-9cc2354abf39]     self._encoded_xml, errors='ignore')
  2017-03-16 08:01:43.522 144245 ERROR nova.compute.manager [instance: 220bec1b-8907-4da9-9862-9cc2354abf39]   File "/usr/lib/python2.7/dist-packages/oslo_utils/excutils.py", line 220, in __exit__
  2017-03-16 08:01:43.522 144245 ERROR nova.compute.manager [instance: 220bec1b-8907-4da9-9862-9cc2354abf39]     self.force_reraise()
  2017-03-16 08:01:43.522 144245 ERROR nova.compute.manager [instance: 220bec1b-8907-4da9-9862-9cc2354abf39]   File "/usr/lib/python2.7/dist-packages/oslo_utils/excutils.py", line 196, in force_reraise
  2017-03-16 08:01:43.522 144245 ERROR nova.compute.manager [instance: 220bec1b-8907-4da9-9862-9cc2354abf39]     six.reraise(self.type_, self.value, self.tb)
  2017-03-16 08:01:43.522 144245 ERROR nova.compute.manager [instance: 220bec1b-8907-4da9-9862-9cc2354abf39]   File "/usr/lib/python2.7/dist-packages/nova/virt/libvirt/guest.py", line 140, in launch
  2017-03-16 08:01:43.522 144245 ERROR nova.compute.manager [instance: 220bec1b-8907-4da9-9862-9cc2354abf39]     return self._domain.createWithFlags(flags)
  2017-03-16 08:01:43.522 144245 ERROR nova.compute.manager [instance: 220bec1b-8907-4da9-9862-9cc2354abf39]   File "/usr/lib/python2.7/dist-packages/eventlet/tpool.py", line 186, in doit
  2017-03-16 08:01:43.522 144245 ERROR nova.compute.manager [instance: 220bec1b-8907-4da9-9862-9cc2354abf39]     result = proxy_call(self._autowrap, f, *args, **kwargs)
  2017-03-16 08:01:43.522 144245 ERROR nova.compute.manager [instance: 220bec1b-8907-4da9-9862-9cc2354abf39]   File "/usr/lib/python2.7/dist-packages/eventlet/tpool.py", line 144, in proxy_call
  2017-03-16 08:01:43.522 144245 ERROR nova.compute.manager [instance: 220bec1b-8907-4da9-9862-9cc2354abf39]     rv = execute(f, *args, **kwargs)
  2017-03-16 08:01:43.522 144245 ERROR nova.compute.manager [instance: 220bec1b-8907-4da9-9862-9cc2354abf39]   File "/usr/lib/python2.7/dist-packages/eventlet/tpool.py", line 125, in execute
  2017-03-16 08:01:43.522 144245 ERROR nova.compute.manager [instance: 220bec1b-8907-4da9-9862-9cc2354abf39]     six.reraise(c, e, tb)
  2017-03-16 08:01:43.522 144245 ERROR nova.compute.manager [instance: 220bec1b-8907-4da9-9862-9cc2354abf39]   File "/usr/lib/python2.7/dist-packages/eventlet/tpool.py", line 83, in tworker
  2017-03-16 08:01:43.522 144245 ERROR nova.compute.manager [instance: 220bec1b-8907-4da9-9862-9cc2354abf39]     rv = meth(*args, **kwargs)
  2017-03-16 08:01:43.522 144245 ERROR nova.compute.manager [instance: 220bec1b-8907-4da9-9862-9cc2354abf39]   File "/usr/lib/python2.7/dist-packages/libvirt.py", line 1065, in createWithFlags
  2017-03-16 08:01:43.522 144245 ERROR nova.compute.manager [instance: 220bec1b-8907-4da9-9862-9cc2354abf39]     if ret == -1: raise libvirtError ('virDomainCreateWithFlags() failed', dom=self)
  2017-03-16 08:01:43.522 144245 ERROR nova.compute.manager [instance: 220bec1b-8907-4da9-9862-9cc2354abf39] libvirtError: unsupported configuration: CPU mode 'host-model' for aarch64 kvm domain on aarch64 host is not supported by hypervisor
  2017-03-16 08:01:43.522 144245 ERROR nova.compute.manager [instance: 220bec1b-8907-4da9-9862-9cc2354abf39]

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Follow ups

[Bug 1673467] Re: [ocata] unsupported configuration: CPU mode 'host-model' for aarch64 kvm domain on aarch64 host is not supported by hypervisor
From: James Page, 2017-09-12
[Bug 1673467] Re: [ocata] unsupported configuration: CPU mode 'host-model' for aarch64 kvm domain on aarch64 host is not supported by hypervisor
From: James Page, 2017-07-26
[Bug 1673467] Re: [ocata] unsupported configuration: CPU mode 'host-model' for aarch64 kvm domain on aarch64 host is not supported by hypervisor
From: Launchpad Bug Tracker, 2017-07-14
[Bug 1673467] Re: [ocata] unsupported configuration: CPU mode 'host-model' for aarch64 kvm domain on aarch64 host is not supported by hypervisor
From: ChristianEhrhardt, 2017-07-05
[Bug 1673467] Re: [ocata] unsupported configuration: CPU mode 'host-model' for aarch64 kvm domain on aarch64 host is not supported by hypervisor
From: Ryan Beisner, 2017-04-03
[Bug 1673467] Re: [ocata] unsupported configuration: CPU mode 'host-model' for aarch64 kvm domain on aarch64 host is not supported by hypervisor
From: Corey Bryant, 2017-03-23
[Bug 1673467] Re: [ocata] unsupported configuration: CPU mode 'host-model' for aarch64 kvm domain on aarch64 host is not supported by hypervisor
From: Sean Dague, 2017-03-17