Subject: Re: xen & FPU
To: Christian Limpach <Christian.Limpach@cl.cam.ac.uk>
From: Manuel Bouyer <bouyer@antioche.eu.org>
List: port-xen
Date: 03/20/2005 14:14:32
On Sat, Mar 19, 2005 at 10:17:53AM -0000, Christian Limpach wrote:
> >This code handles FPU exceptions, correct? Will each domain see its on
> >exception or has domain0 to handle them all?
> 
> It handles FPU errors, the context switching part of FPU exception handling 
> is in npxdna_*.  Both types of exceptions get always passed up to the 
> domain causing the exception.  I would try removing the panic and also 
> commenting out the bus_space_write which is just following it.  The rest of 
> the code looks like it could just work...

It does. Now yorik is building properly, and the "fputest" program reports
that SIGFPE works as expected.

-- 
Manuel Bouyer <bouyer@antioche.eu.org>
     NetBSD: 26 ans d'experience feront toujours la difference
--