Simone Tiraboschi
He / Him / His
Principal Software Engineer
 |  |
El 2019-05-24 14:30, Simone Tiraboschi escribió:
> On Fri, May 24, 2019 at 2:56 PM <nicolas@devels.es> wrote:
>
>> El 2019-05-24 13:39, Simone Tiraboschi escribió:
>>> On Fri, May 24, 2019 at 2:32 PM <nicolas@devels.es> wrote:
>>>
>>>> El 2019-05-24 13:22, Simone Tiraboschi escribió:
>>>>> On Fri, May 24, 2019 at 1:51 PM <nicolas@devels.es> wrote:
>>>>>
>>>>>> El 2019-05-24 12:41, nicolas@devels.es escribió:
>>>>>>> El 2019-05-14 08:19, Yedidyah Bar David escribió:
>>>>>>>> On Tue, May 14, 2019 at 10:02 AM <nicolas@devels.es> wrote:
>>>>>>>>>
>>>>>>>>> Please, any ideas about this?
>>>>>>>>>
>>>>>>>>> Thanks.
>>>>>>>>>
>>>>>>>>> El 2019-05-10 09:18, nicolas@devels.es escribió:
>>>>>>>>> > Hi,
>>>>>>>>> >
>>>>>>>>> > We're running oVirt version 4.3.3, and trying to
>> configure
>>>>>> one of the
>>>>>>>>> > hosts to support Nested Virtualization, but when
>> installing
>>>>>> the nested
>>>>>>>>> > host it claims it doesn't support hardware
>> virtualization.
>>>>>>>>> >
>>>>>>>>> > On the physical host, we've enabled nested
>> virtualization:
>>>>>>>>> >
>>>>>>>>> > # cat /sys/module/kvm_intel/parameters/nested
>>>>>>>>> > Y
>>>>>>>>> >
>>>>>>>>> > Content of /etc/modprobe.d/kvm.conf:
>>>>>>>>> >
>>>>>>>>> > options kvm_intel nested=1
>>>>>>>>> > options kvm_intel enable_shadow_vmcs=1
>>>>>>>>> > options kvm_intel enable_apicv=1
>>>>>>>>> > options kvm_intel ept=1
>>>>>>>>> >
>>>>>>>>> > I created a VM to run on that host, which will be the
>>>> nested
>>>>>> host. I
>>>>>>>>> > try to deploy it but the engine will show it failed
>>>> because:
>>>>>>>>> >
>>>>>>>>> > 2019-05-10 09:11:32,006+01 ERROR
>>>>>>>>> >
>>>>>>
>>>>>
>>>>
>>>
>>
> [org.ovirt.engine.core.dal.dbbroker.auditloghandling.AuditLogDirector]
>>>>>>>>> > (VdsDeploy) [6381e662] EVENT_ID:
>>>>>> VDS_INSTALL_IN_PROGRESS_ERROR(511),
>>>>>>>>> > An error has occurred during installation of Host host1:
>>>>>> Failed to
>>>>>>>>> > execute stage 'Setup validation': Hardware does not
>> support
>>>>>>>>> > virtualization.
>>>>>>>>
>>>>>>>
>>>>>>> Hi Yedidyah, sorry for the delayed answer.
>>>>>>>
>>>>>>>> You might find some more details in the host-deploy log,
>>>>>>>> which you should be able to find in
>>>>>> /var/log/ovirt-engine/host-deploy
>>>>>>>> (on the engine machine, it's copied there after deploy
>>>>>> finishes).
>>>>>>>>
>>>>>>>
>>>>>>> I had a look at it, but nothing relevant shows up besides
>> this
>>>>>> line:
>>>>>>>
>>>>>>> 2019-05-10 09:11:32,628+0100 DEBUG otopi.context
>>>>>>> context._executeMethod:145 method exception
>>>>>>> Traceback (most recent call last):
>>>>>>> File "/tmp/ovirt-qPjYkVy6Ys/pythonlib/otopi/context.py",
>>>> line
>>>>>> 132,
>>>>>>> in _executeMethod
>>>>>>> method['method']()
>>>>>>> File
>>>>>>>
>>>>>>
>>>>>
>>>>
>>>
>>
> "/tmp/ovirt-qPjYkVy6Ys/otopi-plugins/ovirt-host-deploy/vdsm/hardware.py",
>>>>>>> line 71, in _validate_virtualization
>>>>>>> _('Hardware does not support virtualization')
>>>>>>> RuntimeError: Hardware does not support virtualization
>>>>>>>
>>>>>>>> It's been some time since I configured this myself, so I do
>>>> not
>>>>>>>> remember
>>>>>>>> the details anymore. Did you check some guides/blog
>> posts/etc.
>>>>>> about
>>>>>>>> this?
>>>>>>>>
>>>>>>>
>>>>>>> I didn't. I just enabled nested virtualization in the host
>> and
>>>>>> tried to
>>>>>>> deploy.
>>>>>>>
>>>>>>>> What type of CPU did you configure in the VM (and cluster)?
>>>>>>>>
>>>>>>>
>>>>>>> In the Cluster I have the Intel Broadwell Family, and as the
>> VM
>>>>>> CPU I
>>>>>>> have the default cluster CPU which is the one I just
>>>> referenced.
>>>>>> Not
>>>>>>> sure if anything else should be done.
>>>>>>>
>>>>>>>> To see what checks the code does, you can read [1], although
>>>> the
>>>>>> log
>>>>>>>> should be enough IMO.
>>>>>>>>
>>>>>>>> [1]
>>>>>> /usr/lib/python2.7/site-packages/ovirt_host_deploy/hardware.py
>>>>>>
>>>>>> I just saw this in the log:
>>>>>>
>>>>>> 2019-05-24 12:44:56,000+0100 DEBUG
>>>> otopi.ovirt_host_deploy.hardware
>>>>>>
>>>>>> hardware._isVirtualizationEnabled:208 virtualization support
>>>>>> GenuineIntel (cpu: False, bios: True)
>>>>>>
>>>>>> So the CPU is not able to support virtualization. Why could be
>>>>>> that?
>>>>>
>>>>> Hi,
>>>>> can you please share the output of cat /proc/cpuinfo ?
>>>>>
>>>>
>>>> Hi Simone,
>>>>
>>>> Please find attached the output (assuming you meant the VM that
>> is
>>>> meant
>>>> to be added as a host). You'll probably see the model name as
>>>> Haswell
>>>> because I forced it to test, but the same happens with
>> Broadwell.
>>>
>>> OK,
>>> vmx flag is not there so this VM doesn't support virtualization
>> and
>>> for that you have to enable nested virt support on the underlying
>>> level. What (SW) are you using on the underlying layer?
>>>
>>> Let's try to recap:
>>> L0 is your physical machine
>>> L1 is the VM you are going to use as a virtualization host for
>> oVirt
>>> L2 are the VM you are going to create with oVirt
>>>
>>> In order to be able to start a L2 VM from oVirt, you have to
>> enable
>>> nested virtualization support on your L0 physical host.
>>>
>>
>> Ok, the output I sent in the previous e-mail was for L1. For L0 I'm
>>
>> sending the cpuinfo log now.
>>
>> I saw in the code, the flag that is returning false at deployment
>> of L1
>> is this:
>>
>> cpu_ok = self._cpu_has_vmx_support()
>>
>> Which calls the _cpu_has_vmx_support():
>>
>> def _cpu_has_vmx_support(self):
>> eax, ebx, ecx, edx = self._cpuid(1)
>> # CPUID.1:ECX.VMX[bit 5] -> VT
>> ret = ecx & (1 << 5) != 0
>> self.logger.debug('vmx support: %s', ret)
>> return ret
>>
>> From that, am I assuming well that vmx support should be enabled
>> also
>> for L1? If so, what could be the reason for not being enabled?
>
> Nested virtualization support on L0 is supposed to enable
> virtualization support (vmx flag) on L1.
> How you defined and started your L1 VMs?
>
I basically created the L1 VM when L0 had no nested support yet, I
enabled the nested support once the L1 machine was already created, can
that make a difference?
I defined the VM like any other, just with one special option enabled:
to be run on the L0 host which has the nested support enabled. I also
tried shutting down the VM and starting it again, but made no
difference.
>
>> Thanks again.
>>
>>>
>>>
>>>> Thanks.
>>>>
>>>>>
>>>>>>>>
>>>>>>>> Best regards,
>>>>>>>>
>>>>>>>>> >
>>>>>>>>> > Am I missing something here?
>>>>>>>>> >
>>>>>>>>> > Thanks.
>>>>>>>>> > _______________________________________________
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>>>>>> [1]
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>>>>>>>>> >
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>>>> [2]
>>>>>> [2]
>>>>>>>>> > List Archives:
>>>>>>>>> >
>>>>>>
>>>>>
>>>>
>>>
>>
> https://lists.ovirt.org/archives/list/users@ovirt.org/message/P7ZJB2NVO5DYARQTEHLMA4WR3T3P6N4N/
>> [3]
>>>> [3]
>>>>>> [3]
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> https://lists.ovirt.org/archives/list/users@ovirt.org/message/7LALMJF4SQQXLFZUXV2I53YRGX7J7FR6/
>> [4]
>>>> [4]
>>>>>> [4]
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>> [1]
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> https://lists.ovirt.org/archives/list/users@ovirt.org/message/4QMYFBJUMSO7XF2XID4UWY27RMKDV6C4/
>> [5]
>>>> [5]
>>>>>> [5]
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>>>>>> Privacy Statement: https://www.ovirt.org/site/privacy-policy/
>> [1]
>>>> [1] [1]
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>> [2] [2]
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>>>>>> List Archives:
>>>>>>
>>>>>
>>>>
>>>
>>
> https://lists.ovirt.org/archives/list/users@ovirt.org/message/6O7QPVYUHVE7BHHSOVRATSYWJA732RPF/
>> [6]
>>>> [6]
>>>>>> [6]
>>>>>
>>>>> --
>>>>>
>>>>> Simone Tiraboschi
>>>>>
>>>>> He / Him / His
>>>>>
>>>>> Principal Software Engineer
>>>>>
>>>>> Red Hat [7]
>>>>>
>>>>> stirabos@redhat.com
>>>>>
>>>>> @redhatjobs [8] redhatjobs [9] @redhatjobs [10]
>>>>>
>>>>> [11]
>>>>>
>>>>> [12]
>>>>>
>>>>>
>>>>>
>>>>> Links:
>>>>> ------
>>>>> [1] https://www.ovirt.org/site/privacy-policy/ [1] [1]
>>>>> [2] https://www.ovirt.org/community/about/community-guidelines/
>> [2]
>>>> [2]
>>>>> [3]
>>>>>
>>>>
>>>
>>
> https://lists.ovirt.org/archives/list/users@ovirt.org/message/P7ZJB2NVO5DYARQTEHLMA4WR3T3P6N4N/
>> [3]
>>>> [3]
>>>>> [4]
>>>>>
>>>>
>>>
>>
> https://lists.ovirt.org/archives/list/users@ovirt.org/message/7LALMJF4SQQXLFZUXV2I53YRGX7J7FR6/
>> [4]
>>>> [4]
>>>>> [5]
>>>>>
>>>>
>>>
>>
> https://lists.ovirt.org/archives/list/users@ovirt.org/message/4QMYFBJUMSO7XF2XID4UWY27RMKDV6C4/
>> [5]
>>>> [5]
>>>>> [6]
>>>>>
>>>>
>>>
>>
> https://lists.ovirt.org/archives/list/users@ovirt.org/message/6O7QPVYUHVE7BHHSOVRATSYWJA732RPF/
>> [6]
>>>> [6]
>>>>> [7] https://www.redhat.com/ [7] [7]
>>>>> [8] https://twitter.com/redhatjobs [8] [8]
>>>>> [9] https://www.facebook.com/redhatjobs [9] [9]
>>>>> [10] https://instagram.com/redhatjobs [10] [10]
>>>>> [11] https://red.ht/sig [11] [11]
>>>>> [12] https://redhat.com/summit [12] [12]
>>>
>>> --
>>>
>>> Simone Tiraboschi
>>>
>>> He / Him / His
>>>
>>> Principal Software Engineer
>>>
>>> Red Hat [7]
>>>
>>> stirabos@redhat.com
>>>
>>> @redhatjobs [8] redhatjobs [9] @redhatjobs [10]
>>>
>>> [11]
>>>
>>> [12]
>>>
>>>
>>>
>>> Links:
>>> ------
>>> [1] https://www.ovirt.org/site/privacy-policy/ [1]
>>> [2] https://www.ovirt.org/community/about/community-guidelines/
>> [2]
>>> [3]
>>>
>>
> https://lists.ovirt.org/archives/list/users@ovirt.org/message/P7ZJB2NVO5DYARQTEHLMA4WR3T3P6N4N/
>> [3]
>>> [4]
>>>
>>
> https://lists.ovirt.org/archives/list/users@ovirt.org/message/7LALMJF4SQQXLFZUXV2I53YRGX7J7FR6/
>> [4]
>>> [5]
>>>
>>
> https://lists.ovirt.org/archives/list/users@ovirt.org/message/4QMYFBJUMSO7XF2XID4UWY27RMKDV6C4/
>> [5]
>>> [6]
>>>
>>
> https://lists.ovirt.org/archives/list/users@ovirt.org/message/6O7QPVYUHVE7BHHSOVRATSYWJA732RPF/
>> [6]
>>> [7] https://www.redhat.com/ [7]
>>> [8] https://twitter.com/redhatjobs [8]
>>> [9] https://www.facebook.com/redhatjobs [9]
>>> [10] https://instagram.com/redhatjobs [10]
>>> [11] https://red.ht/sig [11]
>>> [12] https://redhat.com/summit [12]
>
> --
>
> Simone Tiraboschi
>
> He / Him / His
>
> Principal Software Engineer
>
> Red Hat [7]
>
> stirabos@redhat.com
>
> @redhatjobs [8] redhatjobs [9] @redhatjobs [10]
>
> [11]
>
> [12]
>
>
>
> Links:
> ------
> [1] https://www.ovirt.org/site/privacy-policy/
> [2] https://www.ovirt.org/community/about/community-guidelines/
> [3]
> https://lists.ovirt.org/archives/list/users@ovirt.org/message/P7ZJB2NVO5DYARQTEHLMA4WR3T3P6N4N/
> [4]
> https://lists.ovirt.org/archives/list/users@ovirt.org/message/7LALMJF4SQQXLFZUXV2I53YRGX7J7FR6/
> [5]
> https://lists.ovirt.org/archives/list/users@ovirt.org/message/4QMYFBJUMSO7XF2XID4UWY27RMKDV6C4/
> [6]
> https://lists.ovirt.org/archives/list/users@ovirt.org/message/6O7QPVYUHVE7BHHSOVRATSYWJA732RPF/
> [7] https://www.redhat.com/
> [8] https://twitter.com/redhatjobs
> [9] https://www.facebook.com/redhatjobs
> [10] https://instagram.com/redhatjobs
> [11] https://red.ht/sig
> [12] https://redhat.com/summit
Simone Tiraboschi
He / Him / His
Principal Software Engineer
| |