El 2019-05-24 15:22, Simone Tiraboschi escribió:
On Fri, May 24, 2019 at 3:48 PM <[email protected]> wrote:
El 2019-05-24 14:42, Simone Tiraboschi escribió:
On Fri, May 24, 2019 at 3:39 PM <[email protected]> wrote:
El 2019-05-24 14:30, Simone Tiraboschi escribió:
On Fri, May 24, 2019 at 2:56 PM <[email protected]> wrote:
El 2019-05-24 13:39, Simone Tiraboschi escribió:
On Fri, May 24, 2019 at 2:32 PM <[email protected]> wrote:
El 2019-05-24 13:22, Simone Tiraboschi escribió:
On Fri, May 24, 2019 at 1:51 PM <[email protected]> wrote:
El 2019-05-24 12:41, [email protected] escribió:
El 2019-05-14 08:19, Yedidyah Bar David escribió:
On Tue, May 14, 2019 at 10:02 AM <[email protected]>
wrote:
Please, any ideas about this?
Thanks.
El 2019-05-10 09:18, [email protected] 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 suppose so.
But which kind of software are you using on your L0? directly
libvirt
with virsh? virt-install? virt-manager? another oVirt isntance?
L0 is a physical host for oVirt 4.1.9 (cannot upgrade yet) with
vdsm. I
can try to destroy L1 and reinstall it now that L0 has nested
virtualization support and see how it goes, that will probably be
on
next monday, I'll send the result once I try.
Did you installed vdsm-hook-nestedvt on your L0 hosts?
if vdsm-hook-nestedvt is there and cat
/sys/module/kvm_intel/parameters/nested reports Y, shutting down
and restarting your L1 VMs from oVirt should be enough.
So that was the problem! The vdsm-hook-nestedvt was not installed on the
L0 host. I just enabled it and it works perfectly. Thanks so much for
the help.
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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--
Simone Tiraboschi
He / Him / His
Principal Software Engineer
Red Hat [7]
[email protected]
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--
Simone Tiraboschi
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Principal Software Engineer
Red Hat [7]
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--
Simone Tiraboschi
He / Him / His
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Red Hat [7]
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