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-devel

Re: [Xen-devel] Questions about direct hardware access, DMA, etc

To: David Stone <unclestoner@xxxxxxxxx>
Subject: Re: [Xen-devel] Questions about direct hardware access, DMA, etc
From: Keir Fraser <Keir.Fraser@xxxxxxxxxxxx>
Date: Wed, 24 Oct 2007 15:04:41 +0100
Cc: xen-devel@xxxxxxxxxxxxxxxxxxx, Mark Williamson <mark.williamson@xxxxxxxxxxxx>
Delivery-date: Wed, 24 Oct 2007 07:05:27 -0700
Envelope-to: www-data@xxxxxxxxxxxxxxxxxx
In-reply-to: <1a74a8410710240648j448b3697wb64018df3e343f36@xxxxxxxxxxxxxx>
List-help: <mailto:xen-devel-request@lists.xensource.com?subject=help>
List-id: Xen developer discussion <xen-devel.lists.xensource.com>
List-post: <mailto:xen-devel@lists.xensource.com>
List-subscribe: <http://lists.xensource.com/cgi-bin/mailman/listinfo/xen-devel>, <mailto:xen-devel-request@lists.xensource.com?subject=subscribe>
List-unsubscribe: <http://lists.xensource.com/cgi-bin/mailman/listinfo/xen-devel>, <mailto:xen-devel-request@lists.xensource.com?subject=unsubscribe>
Sender: xen-devel-bounces@xxxxxxxxxxxxxxxxxxx
Thread-index: AcgWRtIwEIAokII6Edy0vQAX8io7RQ==
Thread-topic: [Xen-devel] Questions about direct hardware access, DMA, etc
User-agent: Microsoft-Entourage/11.3.6.070618


On 24/10/07 14:48, "David Stone" <unclestoner@xxxxxxxxx> wrote:

> And finally a similar question for AMD's IOMMU...you said there was
> support for AMD IOMMU/passthru...does that mean support for a chipset
> implementing the AMD IOMMU spec?  Do any such chipsets even exist yet?
>  Or do you mean using the GART as an IOMMU?

The AMD code is quite new. I don't think it actually supports passthru as
yet. As you say, no chipsets are publicly available yet anyway.

 -- Keir



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