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

[Alexander G. <ag...@su...>]

Am 02.11.2009 um 23:32 schrieb Ondrej Zajicek <san...@cr...>:

> On Mon, Nov 02, 2009 at 11:09:19PM +0100, 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.
>
> Just a note: it might be useful to allow paravirtualized graphics to
> handle text mode. In that case, it can be done in fbdev layer using
> tileblit operations.

Is there any real driver implementing this already? I'd prefer to copy  
from working code instead of writing my own :-).

Also, we still need to keep the local frame buffer copy in sync so we  
can mmap and read from it, right? So it's not really worth it  
probably...

Alex