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RE: [Xen-devel] Trying fbcon in dom1,but take_over_console fails...

To: "Mark Hurenkamp" <mark.hurenkamp@xxxxxxxxx>, <xen-devel@xxxxxxxxxxxxxxxxxxx>
Subject: RE: [Xen-devel] Trying fbcon in dom1,but take_over_console fails...
From: "Ian Pratt" <m+Ian.Pratt@xxxxxxxxxxxx>
Date: Tue, 5 Apr 2005 01:26:38 +0100
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Thread-topic: [Xen-devel] Trying fbcon in dom1,but take_over_console fails...
 > Since it has been some time, I have started by getting a 
> recent xen-unstable installed on my system, and I must say, 
> it looks really good! It seems very stable, and I can use 
> SMP. I have some problems getting X to work with the mga 
> driver in domain 0, but it works great with framebuffer 
> driver, so I can continue my work for now :-)
> 
> So, I'm moving on to trying to get X up in dom1. Unpatched X 
> won't run in dom1 since Xen console is not true VT. So I 
> decided to give fbcon a try, expecting it to crash, but hey, 
> you never know ;-).
> Well, it does crash, from the oops it looks like the 
> take_over_console function (in linux/drivers/char/vt.c) can 
> not handle the request by fbcon.
> Would it be hard to get this to work? Anyone have tips on how 
> I can modify the Xen console to pass over control to fbcon so 
> that I have a true framebuffer console in my second domain? 
> This would be a great start to getting a X server up in dom1.

I suspect you'd be better off getting the xencons to register as ttyS0
(xencons=ttyS0) so that it doesn't go anywhere near the console, and
compile in  VT, VT_CONSOLE and DUMMY_CONSOLE.

Please let us know how you get on.

Ian

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