Re: [RFC] Xen Virtual Framebuffer

[Anthony Liguori <aliguori@us.ibm.com>]

I've made a page in the Wiki with more details:

http://wiki.xensource.com/xenwiki/VirtualFramebuffer

Regards,

Anthony Liguori

Anthony Liguori wrote:

> Now that's 3.0.0's out, I thought it would be a good time to bring up 
> the topic of framebuffer virtualization.
>
> I threw together a proof-of-concept over the weekend of a simple 
> virtual framebuffer/keyboard/mouse.  The basic design is have a 
> vmalloc()'d buffer in the guest exposed as /dev/fb0 and mmap()'d in 
> dom0.  There's also a simple message system for keyboard/mouse events.
>
> The first frontend is a GTK widget with python bindings (so it can 
> easily be embedded in a larger management app) and a small python 
> app.  Right now, the VT system seems to work fine and X starts quite 
> happily (using the fbdev driver).  Clicking in the app captures the 
> mouse/keyboard and ctrl+alt will release the capture.
>
> There's a readme and an hg bundle in the tarball below that explains 
> how to set things up.
>
> Some interesting topics in this area are acceleration, whether we 
> should implement our own X driver (or just enhance the fbdev driver 
> since it uses no acceleration right now), and how to properly expose 
> it over something like VNC.
>
> As always, feedback is greatly appreciated.
>
> http://www.cs.utexas.edu/users/aliguori/xen-vfb-20051205.tar.gz
>
> Regards,
>
> Anthony Liguori
>
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