>Hi Pavel,
>I have to apologize. After your post I study the page again and I
>found your descrption.
>Best regards,
>Am 14.03.2016 um 10:20 schrieb Pavel Hrdina:
> On Mon, Mar 14, 2016 at 09:41:36AM +0100, Holger Schranz wrote:
>> Hi Luo,
>>
>> the vgamem is limited inside. Myself, I use QEMU 2.5/Virgil3D to expand
>> the vgamem.
>
> It's not limited and can be modified inside the xml, the only limitation is that
> the value has to be a power of 2 and for QXL the value must be at least 1024.
> There is an exception, qemu can and in some cases updates the value internally,
> libvirt after the guest is started will get the actual value from qemu and
> update live XML.
>
> Pavel
>