libvirt users - Oct 2019 - Reg: Adding "edu" device using XML file

Hi Team,

I am exploring "edu" device in QEMU to add my own custom device. I am
able
to add the device using the command line. Would it be possible to add the
device using XML file through libvirt?

-- 
Regards,
Bharath

On Tue, Oct 22, 2019 at 5:41 PM bharath paulraj <bharathpaul@gmail.com>
wrote:
> Hi Team,
>
> I am exploring "edu" device in QEMU to add my own custom device.
I am able
> to add the device using the command line. Would it be possible to add the
> device using XML file through libvirt?
>
Hello, edu device is not implemented to libvirt xml. However you can use it
via custom device in libvirt:
Just define a domain like following:
<domain type='qemu'
xmlns:qemu='http://libvirt.org/schemas/domain/qemu/1.0'>
...
 <qemu:commandline>
   <qemu:arg value='-device'/>
<qemu:arg value='edu'/>
 </qemu:commandline>
</domain>

More reference: https://libvirt.org/drvqemu.html#qemucommand
>
>
-- 
> Regards,
> Bharath
> _______________________________________________
> libvirt-users mailing list
> libvirt-users@redhat.com
> https://www.redhat.com/mailman/listinfo/libvirt-users


-- 
Best regards,
-----------------------------------
Han Han
Quality Engineer
Redhat.

Email: hhan@redhat.com
Phone: +861065339333

Hello Han,

Thanks for the response. The XML option with qemu:commandline works if the
device is added during the VM creation. But I would like to hot-plug the
device to the running VM. I can add the device using the command line
<virsh qemu-monitor-command --hmp VM-Name  device_add edu,id=edu0>

But I would like to add the device using the XML file, like <virsh
attach-device VM-Name xmlfile.xml>. If the XML support is not provided in
libvirt, Is there a document or pointers available to show how to add new
device in libvirt xml code?

Thanks,
Bharath

On Wed, Oct 23, 2019 at 12:57 PM Han Han <hhan@redhat.com> wrote:
>
>
> On Tue, Oct 22, 2019 at 5:41 PM bharath paulraj
<bharathpaul@gmail.com>
> wrote:
>
>> Hi Team,
>>
>> I am exploring "edu" device in QEMU to add my own custom
device. I am
>> able to add the device using the command line. Would it be possible to
add
>> the device using XML file through libvirt?
>>
> Hello, edu device is not implemented to libvirt xml. However you can use
> it via custom device in libvirt:
> Just define a domain like following:
> <domain type='qemu'
xmlns:qemu='http://libvirt.org/schemas/domain/qemu/1.0
> '>
> ...
>  <qemu:commandline>
>    <qemu:arg value='-device'/>
> <qemu:arg value='edu'/>
>  </qemu:commandline>
> </domain>
>
> More reference: https://libvirt.org/drvqemu.html#qemucommand
>
>>
>>
> --
>> Regards,
>> Bharath
>> _______________________________________________
>> libvirt-users mailing list
>> libvirt-users@redhat.com
>> https://www.redhat.com/mailman/listinfo/libvirt-users
>
>
>
> --
> Best regards,
> -----------------------------------
> Han Han
> Quality Engineer
> Redhat.
>
> Email: hhan@redhat.com
> Phone: +861065339333
>

-- 
Regards,
Bharath