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/
Home Products Support Community News


Re: [Xen-devel] [PATCH 0/2] graphics passthrough with VT-d / keyboard an

To: Jean Guyader <jean.guyader@xxxxxxxxxx>
Subject: Re: [Xen-devel] [PATCH 0/2] graphics passthrough with VT-d / keyboard and mouse sharing patch
From: Pasi Kärkkäinen <pasik@xxxxxx>
Date: Sat, 13 Mar 2010 02:37:22 +0200
Cc: "Lin, Ben Y" <ben.y.lin@xxxxxxxxx>, "Kay, Allen M" <allen.m.kay@xxxxxxxxx>, "'xen-devel@xxxxxxxxxxxxxxxxxxx'" <xen-devel@xxxxxxxxxxxxxxxxxxx>, "Han, Weidong" <weidong.han@xxxxxxxxx>, "'bengheng@xxxxxxxxxxxxxx'" <bengheng@xxxxxxxxxxxxxx>
Delivery-date: Fri, 12 Mar 2010 16:37:44 -0800
Envelope-to: www-data@xxxxxxxxxxxxxxxxxxx
In-reply-to: <20090828082431.GA16003@xxxxxxxxxx>
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: <715D42877B251141A38726ABF5CABF2C054B533681@xxxxxxxxxxxxxxxxxxxxxxxxxxxx> <20090828082431.GA16003@xxxxxxxxxx>
Sender: xen-devel-bounces@xxxxxxxxxxxxxxxxxxx
User-agent: Mutt/1.5.18 (2008-05-17)
On Fri, Aug 28, 2009 at 09:24:31AM +0100, Jean Guyader wrote:
> On Fri, Aug 28, 2009 at 03:53:56AM -0400, Han, Weidong wrote:
> > Hi all,
> > 
> > Recently, more and more people are interesting in gfx passthrough. But now 
> > xen-unstable doesn't support it, although some guys (Jean Guyader, Beng 
> > Heng, Ng) posted gfx passthrough patches. If xen-unstable includes gfx 
> > passthrough support, people can be easy to try it.
> > 
> > gfx passthrough is more complicated than other PCI device passthrough such 
> > as NIC, and is hard to use a generic approach for all gfx passthrough. But 
> > there are some necessary changes for gfx passthrough:
> >   1. disable emulated VGA adapter, instead use passthroughed gfx
> >   2. load VGA bios of the gfx to guest
> >   3. passthrough legacy VGA IO ports and MMIOs to guest
> > 
> > This patchset implements above common changes. Based on the common changes, 
> > we are investigating to support more gfx cards and guest OSs. We will post 
> > the hacks in future.
> > 
> > The patchset supports to passthrough the primary gfx and discrete gfx. With 
> > the patchset, virtualization friendly gfx cards can be passthroughed (e.g. 
> > Nvidia FX3800), IGD and many discrete gfx cards are not supported yet. 
> > 
> > This is easy to use, the only difference from other PCI passthrough is to 
> > add following lines to hvm configure file:
> > 
> > #----------------------------------------------------------------------------------------
> > # 0: no gfx passthru, 1: IGD passthru, 2: discrete gfx passthru, default is > > 0
> > gfx_passthru=2
> > 
> > and also pls passthrough a USB controller for keyboard/mouse use in guest. 
> > (Now there are some issues on USB controller passthrough with pv-ops dom0, 
> > so currently prefer to use 2.6.18 dom0.)
> > 
> Once we have those patch inside xen-unstable, I could commit the patch we 
> have for XCI
> to share the host keyboard/mouse with multiple vms.


I just found this while going through the archives.

I don't remember seeing this keyboard/mouse sharing patch.. 
Can you send it now when xen-unstable has graphics passthru support?

-- Pasi

Xen-devel mailing list

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