Re: [Xen-devel] Status of ioemu code in unstable?

[Anthony Liguori <aliguori@xxxxxxxxxx>]

John Byrne wrote:

> > There is an item on the TODO list to implement a para-virtualized 
> > framebuffer.  That would provide this sort of functionality.  I don't 
> > know if anyone is actively working on it but I know there's at least 
> > been some discussion abou tit.
> > Regards,
> >
> > Anthony Liguori
>
>
> Thanks.
>
> A few more questions. Does the VGA emulation require VT-x? (Qemu has 
> been around for a while, so I suspect not.) Could the xen console 
> changes be removed and a consistent model for the console be used?
Something that might be interesting is providing a virtual CGA buffer 
for para-virtual guests.  This would be a reasonable step in the right 
direction as then we could implement a pretty reasonable VNC client that 
showed either the CGA buffer or the VNC buffer (once Xvnc started).
Considering the typical usage model this would probably be more than 
enough for most Linux users and saves a lot of cycles rendering the 
fonts (over a VGA solution).  Actually, I guess a virtual VGA device 
that also had a CGA mode would be the best of both worlds.
Regards,

Anthony Liguori

> (I'd guess the console was done the way it was because something was 
> needed and it was easiest to do it the way it is done, but is it 
> necessary now that the emulation code is available?) If there is a 
> requirement that the text mode console talk via a xen channel to the 
> xen tools, can it be done in addition to the emulation?
> John Byrne
>
>
> > > My undertanding is that the xen changes to the Linux kernel include 
> > > changes to the console driver to talk to the xen tools and that is 
> > > you want and X server, you run Xvnc. So, looking at the text console 
> > > and the X server require different tools.
> > > If I were trying to manage virtual machines, I'd want a solution 
> > > that didn't care about what kind of kernel I was running.
> > > John Byrne
> > >
> > >
> > >
> > > _______________________________________________
> > > Xen-devel mailing list
> > > Xen-devel@xxxxxxxxxxxxxxxxxxx
> > > http://lists.xensource.com/xen-devel

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