[libvirt-users] [help] How to modify the vgamem value ?

[Holger Schranz]

Hi Luo,

the vgamem is limited inside. Myself, I use QEMU 2.5/Virgil3D to expand
the vgamem.

May be someone have a better solution or an example to solve it.

Best regards,

Holger

=================================================================

example:

<domain type='kvm' xmlns:qemu='http://libvirt.org/schemas/domain/qemu/1.0'>

.
.
<!-- Begin device declaration -->
  <devices>
.
.
  <!-- Videocard -->
      <video>
        <model type='virtio' heads='1'/>
          <alias name='video0'/>
          <address type='pci' domain='0x0000' bus='0x00' slot='0x0b'
function='0x0'/>
      </video>

.
.
.
<!-- End device declaration -->
  </devices>

  <qemu:commandline>
.
.
    <qemu:arg value='-global'/>
    <qemu:arg value='VGA.vgamem_mb=128'/>    <--- here is the size
    <qemu:arg value='-set'/>
    <qemu:arg value='device.video0.driver=virtio-vga'/>
  </qemu:commandline>

=================================================================



Am 14.03.2016 um 09:20 schrieb hongzhen_luo at sina.com:
> Dear everyone
> 
>        Do you know how to modify  vgamem value in the .xml file ?  such as :
> 
> <video>
>       <model type='qxl' ram='65536' vram='65536' vgamem='16384'
> heads='1'/> // from  instance-0000015e.xml
> 
>       <address type='pci' domain='0x0000' bus='0x00' slot='0x02'
> function='0x0'/
> 
> </video>
> 
> I plan to increase the  volume of vgamem , but  it seems that always
> keep the original value ‘16384’. Was it limited by QEMU? or others？ 
> Please tell me how I can I modify it ? it's better that help me to make
> a example for modifing the vgamem..... 
> 
> 
> Thank you very much
> 
> Best Regards .
> 
> 
> 
> 
> 
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