WARNING - OLD ARCHIVES

This is an archived copy of the Xen.org mailing list, which we have preserved to ensure that existing links to archives are not broken. The live archive, which contains the latest emails, can be found at http://lists.xen.org/
   
 
 
Xen 
 
Home Products Support Community News
 
   
 

xen-ia64-devel

Re: [Xen-ia64-devel] [PATCH][RFC][TAKE4] the P2M/VP patches

To: "Tian, Kevin" <kevin.tian@xxxxxxxxx>, "Isaku Yamahata" <yamahata@xxxxxxxxxxxxx>
Subject: Re: [Xen-ia64-devel] [PATCH][RFC][TAKE4] the P2M/VP patches
From: Tristan Gingold <Tristan.Gingold@xxxxxxxx>
Date: Wed, 12 Apr 2006 08:08:29 +0100
Cc: xen-ia64-devel@xxxxxxxxxxxxxxxxxxx
Delivery-date: Wed, 12 Apr 2006 00:04:43 -0700
Envelope-to: www-data@xxxxxxxxxxxxxxxxxx
In-reply-to: <571ACEFD467F7749BC50E0A98C17CDD8094E7AFD@pdsmsx403>
List-help: <mailto:xen-ia64-devel-request@lists.xensource.com?subject=help>
List-id: Discussion of the ia64 port of Xen <xen-ia64-devel.lists.xensource.com>
List-post: <mailto:xen-ia64-devel@lists.xensource.com>
List-subscribe: <http://lists.xensource.com/cgi-bin/mailman/listinfo/xen-ia64-devel>, <mailto:xen-ia64-devel-request@lists.xensource.com?subject=subscribe>
List-unsubscribe: <http://lists.xensource.com/cgi-bin/mailman/listinfo/xen-ia64-devel>, <mailto:xen-ia64-devel-request@lists.xensource.com?subject=unsubscribe>
References: <571ACEFD467F7749BC50E0A98C17CDD8094E7AFD@pdsmsx403>
Sender: xen-ia64-devel-bounces@xxxxxxxxxxxxxxxxxxx
User-agent: KMail/1.5
Le Mercredi 12 Avril 2006 08:12, Tian, Kevin a écrit :
> From: Isaku Yamahata [mailto:yamahata@xxxxxxxxxxxxx]
[...]
> >That's an access to keyboard port possibly because now xen0/xenU
> >
> >> is compiled as one image with more drivers added. Maybe it's better
> >> for us to map all 64M mmio area of domU to a dummy page at current
> >> stage, to remove warnings and walk around some native drivers
> >> within domU. Later when driver domain is added, we can map specific
> >> mmio page to machine mmio range per configuration.
> >
> >I agree with you.
> >But this issues isn't specific to the P2M/VP patch.
I don't agree with this solution.  I really prefer to have warnings because it 
means something got wrong.  domU shouldn't access to mmio.

If you use a dummy page, a device driver may loop.

Tristan.


_______________________________________________
Xen-ia64-devel mailing list
Xen-ia64-devel@xxxxxxxxxxxxxxxxxxx
http://lists.xensource.com/xen-ia64-devel

<Prev in Thread] Current Thread [Next in Thread>