|   | 
      | 
  
  
      | 
      | 
  
 
     | 
    | 
  
  
     | 
    | 
  
  
    |   | 
      | 
  
  
    | 
         
xen-devel
Re: [Xen-devel] [PATCH 1/2] graphics passthrough with VT-d
 
| 
To:  | 
"Han, Weidong" <weidong.han@xxxxxxxxx> | 
 
| 
Subject:  | 
Re: [Xen-devel] [PATCH 1/2] graphics passthrough with VT-d | 
 
| 
From:  | 
Jean Guyader <jean.guyader@xxxxxxxxxx> | 
 
| 
Date:  | 
Fri, 28 Aug 2009 09:12:32 +0100 | 
 
| 
Cc:  | 
"'xen-devel@xxxxxxxxxxxxxxxxxxx'" <xen-devel@xxxxxxxxxxxxxxxxxxx>, "Lin,	Ben Y" <ben.y.lin@xxxxxxxxx>, "Kay, Allen M" <allen.m.kay@xxxxxxxxx>,	Fraser <Keir.Fraser@xxxxxxxxxxxxx>, Keir,	"'bengheng@xxxxxxxxxxxxxx'" <bengheng@xxxxxxxxxxxxxx> | 
 
| 
Delivery-date:  | 
Fri, 28 Aug 2009 01:13:14 -0700 | 
 
| 
Envelope-to:  | 
www-data@xxxxxxxxxxxxxxxxxxx | 
 
| 
In-reply-to:  | 
<715D42877B251141A38726ABF5CABF2C054B533682@xxxxxxxxxxxxxxxxxxxxxxxxxxxx> | 
 
| 
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/mailman/listinfo/xen-devel>,	<mailto:xen-devel-request@lists.xensource.com?subject=subscribe> | 
 
| 
List-unsubscribe:  | 
<http://lists.xensource.com/mailman/listinfo/xen-devel>,	<mailto:xen-devel-request@lists.xensource.com?subject=unsubscribe> | 
 
| 
References:  | 
<715D42877B251141A38726ABF5CABF2C054B533682@xxxxxxxxxxxxxxxxxxxxxxxxxxxx> | 
 
| 
Sender:  | 
xen-devel-bounces@xxxxxxxxxxxxxxxxxxx | 
 
| 
User-agent:  | 
Mutt/1.5.20 (2009-06-14) | 
 
 
 
On Fri, Aug 28, 2009 at 03:54:05AM -0400, Han, Weidong wrote:
> This patch supports basic gfx passthrough on xen side:
>   - retrieves VGA bios from host VGA BIOS address (0xC0000), then load it to 
> guest VGA BIOS address (This is the same with XCI).
>   - Enlarge guest MMIO range to contain gfx card's large memory 
>   - add a config option 'gfx_passthru' for gfx passthrough
> 
> Signed-off-by: Ben Lin <ben.y.lin@xxxxxxxxx>
> Signed-off-by: Weidong Han <weidong.han@xxxxxxxxx>
Hi,
First thanks for taking the time to upstream those patch
that will help a lot.
I think the patch will be let intrusive if we could do all
that bios mapping + copying inside qemu so we don't need to
modify the xc_hvm_build function.
Qemu starts before the bios so that should be doable.
Thanks,
Jean
_______________________________________________
Xen-devel mailing list
Xen-devel@xxxxxxxxxxxxxxxxxxx
http://lists.xensource.com/xen-devel
 
 |   
 
 | 
    | 
  
  
    |   | 
    |