5:52 a.m.
Hi,
I am doing PCI Passthrough for GPUs.
Is it possible somehow to disable/remove default video qxl?
thanks,
Arman,.
***********************************************************
Dr. Arman Khalatyan eScience -SuperComputing
Leibniz-Institut für Astrophysik Potsdam (AIP)
An der Sternwarte 16, 14482 Potsdam, Germany
***********************************************************
8:25 a.m.
Adding spice-list.
Yaniv Dary
Technical Product Manager
Red Hat Israel Ltd.
34 Jerusalem Road
Building A, 4th floor
Ra'anana, Israel 4350109
Tel : +972 (9) 7692306
8272306
Email: ydary(a)redhat.com
IRC : ydary
On Mon, Jul 4, 2016 at 12:52 PM, Arman Khalatyan <arm2arm(a)gmail.com> wrote:
Hi,
I am doing PCI Passthrough for GPUs.
Is it possible somehow to disable/remove default video qxl?
thanks,
Arman,.
***********************************************************
Dr. Arman Khalatyan eScience -SuperComputing
Leibniz-Institut für Astrophysik Potsdam (AIP)
An der Sternwarte 16, 14482 Potsdam, Germany
***********************************************************
_______________________________________________
Users mailing list
Users(a)ovirt.org
http://lists.ovirt.org/mailman/listinfo/users
4:56 a.m.
New subject: [Spice-devel] Is it possible to disable qxl video?
--UlxN1C6awaFNesUv
Content-Type: text/plain; charset=us-ascii
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On Mon, Jul 4, 2016 at 12:52 PM, Arman Khalatyan
<arm2arm(a)gmail.com> wrot=
e:
=20
>
> Hi,
> I am doing PCI Passthrough for GPUs.
> Is it possible somehow to disable/remove default video qxl?
> thanks,
> Arman,.
On Tue, Jul 05, 2016 at 03:25:26PM +0300, Yaniv Dary wrote:
Adding spice-list.
If this is a VM configuration question ("How do I remove the QXL video
device from the VM definition"), this is something for ovirt people to
answer. If the QXL device is not present in the VM definition, it should
not matter whether the QXL drivers are installed in the VM or not.
Christophe
--UlxN1C6awaFNesUv
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------=_Part_2842831_1076017042.1467806764674
Content-Type: text/plain; charset=utf-8
Content-Transfer-Encoding: 7bit
----- Original Message -----
From: "Arman Khalatyan" <arm2arm(a)gmail.com>
To: "users" <users(a)ovirt.org>
Sent: Monday, July 4, 2016 11:52:24 AM
Subject: [ovirt-users] Is it possible to disable qxl video?
Hi,
I am doing PCI Passthrough for GPUs.
Is it possible somehow to disable/remove default video qxl?
thanks,
Arman,.
Hi,
The 4.0 Vdsm allows you to run a headless VM, meaning a VM without graphic
device/frontend.
Not sure Engine allows you that however. I'm afraid you will need to write a Vdsm
hook.
There could be simpler solutions depending on the Engine
Bests,
--
Francesco Romani
RedHat Engineering Virtualization R & D
Phone: 8261328
IRC: fromani
------=_Part_2842831_1076017042.1467806764674
Content-Type: text/html; charset=utf-8
Content-Transfer-Encoding: quoted-printable
<html><body><div style=3D"font-family: times new roman, new york,
times, se=
rif; font-size: 12pt; color: #000000"><div><br></div><hr
id=3D"zwchr"><bloc=
kquote style=3D"border-left:2px solid #1010FF;margin-left:5px;padding-left:=
5px;color:#000;font-weight:normal;font-style:normal;text-decoration:none;fo=
nt-family:Helvetica,Arial,sans-serif;font-size:12pt;"><b>From:
</b>"Arman K=
halatyan" &lt;arm2arm(a)gmail.com&gt;<br><b>To:
</b>"users" &lt;users(a)ovirt.o=
rg><br><b>Sent: </b>Monday, July 4, 2016 11:52:24
AM<br><b>Subject: </b>=
[ovirt-users] Is it possible to disable qxl
video?<br><div><br></div><div d=
ir=3D"ltr"><div><div><div><div><div><br></div>Hi,<br></div>I
am doing PCI P=
assthrough for GPUs.<br></div>Is it possible somehow to disable/remove defa=
ult video
qxl?<br></div>thanks,<br></div>Arman,.</div></blockquote><div>Hi,=
<br></div><div><br></div><div>The 4.0 Vdsm allows you
to run a headless VM,=
meaning a VM without graphic device/frontend.<br></div><div>Not sure
Engin=
e allows you that however. I'm afraid you will need to write a Vdsm hook.<b=
r></div><div><br></div><div>There could be simpler
solutions depending on t=
he
Engine<br></div><div><br></div><div>Bests,<br></div><div><br></div><div>=
-- <br></div><div><span
name=3D"x"></span>Francesco Romani<br>RedHat Engine=
ering Virtualization R & D<br>Phone: 8261328<br>IRC: fromani<span
name=
=3D"x"></span><br></div></div></body></html>
------=_Part_2842831_1076017042.1467806764674--
5:29 a.m.
--Apple-Mail=_DC1F42EC-AB98-47CB-ACC9-8293C9AD0C4F
Content-Transfer-Encoding: quoted-printable
Content-Type: text/plain;
charset=utf-8
On 06 Jul 2016, at 14:06, Francesco Romani <fromani(a)redhat.com>
wrote:
=20
=20
From: "Arman Khalatyan" <arm2arm(a)gmail.com>
To: "users" <users(a)ovirt.org>
Sent: Monday, July 4, 2016 11:52:24 AM
Subject: [ovirt-users] Is it possible to disable qxl video?
=20
=20
Hi,
I am doing PCI Passthrough for GPUs.
Is it possible somehow to disable/remove default video qxl?
thanks,
Arman,.
Hi,
=20
The 4.0 Vdsm allows you to run a headless VM, meaning a VM without =
graphic
device/frontend.
Not sure Engine allows you that however.
no it doesn=E2=80=99t
However, if QXL is the problem (why is that so?) then you can switch to =
VGA(or CIRRUS if this is still 3.6)
I'm afraid you will need to write a Vdsm hook.
=20
There could be simpler solutions depending on the Engine
=20
Bests,
=20
--=20
Francesco Romani
RedHat Engineering Virtualization R & D
Phone: 8261328
IRC: fromani
_______________________________________________
Users mailing list
Users(a)ovirt.org <mailto:Users@ovirt.org>
http://lists.ovirt.org/mailman/listinfo/users =
<http://lists.ovirt.org/mailman/listinfo/users>
--Apple-Mail=_DC1F42EC-AB98-47CB-ACC9-8293C9AD0C4F
Content-Transfer-Encoding: quoted-printable
Content-Type: text/html;
charset=utf-8
<html><head><meta http-equiv=3D"Content-Type"
content=3D"text/html =
charset=3Dutf-8"></head><body style=3D"word-wrap: break-word; =
-webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" =
class=3D""><br class=3D""><div><blockquote
type=3D"cite" class=3D""><div =
class=3D"">On 06 Jul 2016, at 14:06, Francesco Romani <<a =
href=3D"mailto:fromani@redhat.com"
class=3D"">fromani(a)redhat.com</a>&gt; =
wrote:</div><br class=3D"Apple-interchange-newline"><div
class=3D""><div =
style=3D"font-style: normal; font-variant-caps: normal; font-weight: =
normal; letter-spacing: normal; orphans: auto; text-align: start; =
text-indent: 0px; text-transform: none; white-space: normal; widows: =
auto; word-spacing: 0px; -webkit-text-stroke-width: 0px; font-family: =
'times new roman', 'new york', times, serif; font-size: 12pt;" =
class=3D""><br class=3D"Apple-interchange-newline"><hr
id=3D"zwchr" =
class=3D""><blockquote style=3D"border-left-width: 2px; =
border-left-style: solid; border-left-color: rgb(16, 16, 255); =
margin-left: 5px; padding-left: 5px; font-weight: normal; font-style: =
normal; text-decoration: none; font-family: Helvetica, Arial, =
sans-serif; font-size: 12pt;" class=3D""><b
class=3D"">From:<span =
class=3D"Apple-converted-space"> </span></b>"Arman
Khalatyan" =
<<a href=3D"mailto:arm2arm@gmail.com" =
class=3D"">arm2arm(a)gmail.com</a>&gt;<br
class=3D""><b class=3D"">To:<span =
class=3D"Apple-converted-space"> </span></b>"users"
<<a =
href=3D"mailto:users@ovirt.org"
class=3D"">users(a)ovirt.org</a>&gt;<br =
class=3D""><b class=3D"">Sent:<span =
class=3D"Apple-converted-space"> </span></b>Monday, July
4, 2016 =
11:52:24 AM<br class=3D""><b class=3D"">Subject:<span
=
class=3D"Apple-converted-space"> </span></b>[ovirt-users]
Is it =
possible to disable qxl video?<br class=3D""><div
class=3D""><br =
class=3D""></div><div dir=3D"ltr"
class=3D""><div class=3D""><div =
class=3D""><div class=3D""><div
class=3D""><div class=3D""><br =
class=3D""></div>Hi,<br class=3D""></div>I am
doing PCI Passthrough for =
GPUs.<br class=3D""></div>Is it possible somehow to disable/remove
=
default video qxl?<br class=3D""></div>thanks,<br =
class=3D""></div>Arman,.</div></blockquote><div
class=3D"">Hi,<br =
class=3D""></div><div class=3D""><br
class=3D""></div><div class=3D"">The =
4.0 Vdsm allows you to run a headless VM, meaning a VM without graphic =
device/frontend.<br class=3D""></div><div
class=3D"">Not sure Engine =
allows you that
however.</div></div></div></blockquote><div><br =
class=3D""></div><div>no it
doesn=E2=80=99t</div><div>However, if QXL is =
the problem (why is that so?) then you can switch to VGA(or CIRRUS if =
this is still 3.6)</div><div><br
class=3D""></div><blockquote =
type=3D"cite" class=3D""><div class=3D""><div
style=3D"font-style: =
normal; font-variant-caps: normal; font-weight: normal; letter-spacing: =
normal; orphans: auto; text-align: start; text-indent: 0px; =
text-transform: none; white-space: normal; widows: auto; word-spacing: =
0px; -webkit-text-stroke-width: 0px; font-family: 'times new roman', =
'new york', times, serif; font-size: 12pt;" class=3D""><div
class=3D""> =
I'm afraid you will need to write a Vdsm hook.<br
class=3D""></div><div =
class=3D""><br class=3D""></div><div
class=3D"">There could be simpler =
solutions depending on the Engine<br class=3D""></div><div
class=3D""><br =
class=3D""></div><div class=3D"">Bests,<br
class=3D""></div><div =
class=3D""><br class=3D""></div><div
class=3D"">--<span =
class=3D"Apple-converted-space"> </span><br
class=3D""></div><div =
class=3D""><span name=3D"x"
class=3D""></span>Francesco Romani<br =
class=3D"">RedHat Engineering Virtualization R & D<br =
class=3D"">Phone: 8261328<br class=3D"">IRC: fromani<span
name=3D"x" =
class=3D""></span><br
class=3D""></div></div><span style=3D"font-family: =
Helvetica; font-size: 12px; font-style: normal; font-variant-caps: =
normal; font-weight: normal; letter-spacing: normal; orphans: auto; =
text-align: start; text-indent: 0px; text-transform: none; white-space: =
normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px; =
float: none; display: inline !important;" =
class=3D"">_______________________________________________</span><br
=
style=3D"font-family: Helvetica; font-size: 12px; font-style: normal; =
font-variant-caps: normal; font-weight: normal; letter-spacing: normal; =
orphans: auto; text-align: start; text-indent: 0px; text-transform: =
none; white-space: normal; widows: auto; word-spacing: 0px; =
-webkit-text-stroke-width: 0px;" class=3D""><span
style=3D"font-family: =
Helvetica; font-size: 12px; font-style: normal; font-variant-caps: =
normal; font-weight: normal; letter-spacing: normal; orphans: auto; =
text-align: start; text-indent: 0px; text-transform: none; white-space: =
normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px; =
float: none; display: inline !important;" class=3D"">Users mailing =
list</span><br style=3D"font-family: Helvetica; font-size: 12px; =
font-style: normal; font-variant-caps: normal; font-weight: normal; =
letter-spacing: normal; orphans: auto; text-align: start; text-indent: =
0px; text-transform: none; white-space: normal; widows: auto; =
word-spacing: 0px; -webkit-text-stroke-width: 0px;" class=3D""><a =
href=3D"mailto:Users@ovirt.org" style=3D"font-family: Helvetica; =
font-size: 12px; font-style: normal; font-variant-caps: normal; =
font-weight: normal; letter-spacing: normal; orphans: auto; text-align: =
start; text-indent: 0px; text-transform: none; white-space: normal; =
widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px;" =
class=3D"">Users(a)ovirt.org</a><br style=3D"font-family:
Helvetica; =
font-size: 12px; font-style: normal; font-variant-caps: normal; =
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class=3D""><a
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style=3D"font-family: Helvetica; font-size: 12px; font-style: normal; =
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uote></div><br class=3D""></body></html>=
--Apple-Mail=_DC1F42EC-AB98-47CB-ACC9-8293C9AD0C4F--
3:06 a.m.
On 08/07/16 11:29 +0200, Michal Skrivanek wrote:
> On 06 Jul 2016, at 14:06, Francesco Romani <fromani(a)redhat.com> wrote:
>
>
> From: "Arman Khalatyan" <arm2arm(a)gmail.com>
> To: "users" <users(a)ovirt.org>
> Sent: Monday, July 4, 2016 11:52:24 AM
> Subject: [ovirt-users] Is it possible to disable qxl video?
>
>
> Hi,
> I am doing PCI Passthrough for GPUs.
> Is it possible somehow to disable/remove default video qxl?
> thanks,
> Arman,.
> Hi,
>
> The 4.0 Vdsm allows you to run a headless VM, meaning a VM without graphic
device/frontend.
> Not sure Engine allows you that however.
no it doesn’t
Even if engine allowed that, it may not be the correct solution.
Running headless with PCI passthrough is considered primary VGA
passthrough[1]. Using primary VGA passthrough without OVMF could cause
(will cause) quite a bit of headaches.
If you really want to try that, I assume using before_vm_start hook to
remove the video device should be enough.
[1] http://wiki.xenproject.org/wiki/Xen_VGA_Passthrough - it's
possible to read about primary and secondary passthrough between the
lines
However, if QXL is the problem (why is that so?) then you can switch
to VGA(or CIRRUS if this is still 3.6)
> I'm afraid you will need to write a Vdsm hook.
>
> There could be simpler solutions depending on the Engine
>
> Bests,
>
> --
> Francesco Romani
> RedHat Engineering Virtualization R & D
> Phone: 8261328
> IRC: fromani
> _______________________________________________
> Users mailing list
> Users(a)ovirt.org <mailto:Users@ovirt.org>
> http://lists.ovirt.org/mailman/listinfo/users
<http://lists.ovirt.org/mailman/listinfo/users>
_______________________________________________
Users mailing list
Users(a)ovirt.org
http://lists.ovirt.org/mailman/listinfo/users
5:36 a.m.
I just testing several GPUs with pci-passthrough: GTX630, Tesla 2050 and
FX5800.
None of them I got running with opengl/direct rendering inside the virtual
machine.
I was thinking something to do with qxl driver, but after blacklisting it
in the VMs kernel nothing was changed.
The VMs Xorg claiming always no display found even if I configure it with
headless option: nvidia-xconfig -a --use-display-device=None
--virtual=1280x1024
But with nvidia-smi I can see the GPU status, and I can run all cuda tests
where opengl/X11 is not involved.
My test system is CentOS 7 with ovirt 4.
BTW If I clone VM which was not running, to real host on bare metal,
everything is running as expecting.
***********************************************************
Dr. Arman Khalatyan eScience -SuperComputing
Leibniz-Institut für Astrophysik Potsdam (AIP)
An der Sternwarte 16, 14482 Potsdam, Germany
***********************************************************
On Mon, Jul 11, 2016 at 9:06 AM, Martin Polednik <mpolednik(a)redhat.com>
wrote:
On 08/07/16 11:29 +0200, Michal Skrivanek wrote:
>
> On 06 Jul 2016, at 14:06, Francesco Romani <fromani(a)redhat.com> wrote:
>>
>>
>> From: "Arman Khalatyan" <arm2arm(a)gmail.com>
>> To: "users" <users(a)ovirt.org>
>> Sent: Monday, July 4, 2016 11:52:24 AM
>> Subject: [ovirt-users] Is it possible to disable qxl video?
>>
>>
>> Hi,
>> I am doing PCI Passthrough for GPUs.
>> Is it possible somehow to disable/remove default video qxl?
>> thanks,
>> Arman,.
>> Hi,
>>
>> The 4.0 Vdsm allows you to run a headless VM, meaning a VM without
>> graphic device/frontend.
>> Not sure Engine allows you that however.
>>
>
> no it doesn’t
>
Even if engine allowed that, it may not be the correct solution.
Running headless with PCI passthrough is considered primary VGA
passthrough[1]. Using primary VGA passthrough without OVMF could cause
(will cause) quite a bit of headaches.
If you really want to try that, I assume using before_vm_start hook to
remove the video device should be enough.
[1] http://wiki.xenproject.org/wiki/Xen_VGA_Passthrough - it's
possible to read about primary and secondary passthrough between the
lines
However, if QXL is the problem (why is that so?) then you can switch to
> VGA(or CIRRUS if this is still 3.6)
>
> I'm afraid you will need to write a Vdsm hook.
>>
>> There could be simpler solutions depending on the Engine
>>
>> Bests,
>>
>> --
>> Francesco Romani
>> RedHat Engineering Virtualization R & D
>> Phone: 8261328
>> IRC: fromani
>> _______________________________________________
>> Users mailing list
>> Users(a)ovirt.org <mailto:Users@ovirt.org>
>> http://lists.ovirt.org/mailman/listinfo/users <
>> http://lists.ovirt.org/mailman/listinfo/users>
>>
>
_______________________________________________
> Users mailing list
> Users(a)ovirt.org
> http://lists.ovirt.org/mailman/listinfo/users
>
3092
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3099
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6 comments
6 participants
participants (6)
-
Arman Khalatyan -
Christophe Fergeau -
Francesco Romani -
Martin Polednik -
Michal Skrivanek -
Yaniv Dary