Re: [Qemu-devel] Re: [PATCH] Add VirtIO Frame Buffer Support

Anthony Liguori
2009-11-06T03:05:09Z

Jamie Lokier wrote:
> Avi Kivity wrote:
>
>> On 11/03/2009 12:09 AM, Alexander Graf wrote:
>>
>>> When we want to create a full VirtIO based machine, we're still missing
>>> graphics output. Fortunately, Linux provides us with most of the frameworks
>>> to render text and everything, we only need to implement a transport.
>>>
>>> So this is a frame buffer backend written for VirtIO. Using this and my
>>> patch to qemu, you can use paravirtualized graphics.
>>>
>> What does this do that cirrus and/or vmware-vga don't?
>>
>
> *This* virtio-fb doesn't, but one feature I think a lot of users
> (including me) would like is:
>
> Option to resize the guest desktop when the host desktop / host
> window / VNC client resizes.
>
> Tell the guest to provide multiple desktops when the host has
> multiple desktops, so things like twin monitors work nicely with
> guests.
>
> Relay EDID/Xrandr information and updates from host to guest, and
> generally handle hotplugging host monitors nicely.
>
> Are there any real hardware standards worth emulating which do that?
>

vmware-vga.

If you have a little tool in a guest that uses the X extension that
vmware vga implements, it actually works in qemu too.

Regards,

Anthony Liguoru