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Re: port-xen/52016: Mismatch between mem_clusters and pmap_enter bounds check



The following reply was made to PR port-xen/52016; it has been noted by GNATS.

From: Martin Husemann <martin%duskware.de@localhost>
To: gnats-bugs%NetBSD.org@localhost
Cc: 
Subject: Re: port-xen/52016: Mismatch between mem_clusters and pmap_enter
 bounds check
Date: Wed, 1 Mar 2017 12:18:18 +0100

 On Wed, Mar 01, 2017 at 11:15:01AM +0000, Manuel Bouyer wrote:
 >  No, it works because the hypervisor allows mapping the video
 >  harware address. I don't know why it rejects the addresses used by dmidecode
 
 There should be a fixed list of "forbidden" addresses, probably something
 like 0xc0000 - 0xfffff. We need to find out the details and mirror the
 behvaiour in the access check.
 
 Unless there is a way to query the hypervisor for this details...
 
 Martin
 


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