Subject: Re: Missing functions for MTRR causing random X crashes
To: Jason Thorpe <>
From: Manuel Bouyer <>
List: port-xen
Date: 03/15/2005 20:43:56
On Tue, Mar 15, 2005 at 11:32:22AM -0800, Jason Thorpe wrote:
> On Mar 15, 2005, at 11:14 AM, Manuel Bouyer wrote:
> >Most probably. But as I don't know exactly what MTRR is, I can't be 
> >sure :)
> Memory Type Range Register, if I remember correctly.  Allows you to set 
> caching attributes, etc. for memory ranges.

OK. So it may need hypervisor calls, and also physical address convertions.
It should not be too hard to fix.

Manuel Bouyer <>
     NetBSD: 26 ans d'experience feront toujours la difference