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] Regression in PCI pass-through from qemu-xen changeset "

To: Ian Jackson <Ian.Jackson@xxxxxxxxxxxxx>
Subject: Re: [Xen-devel] Regression in PCI pass-through from qemu-xen changeset "Fix hvm guest cirrus_vga hvm s3 resume failure"
From: Simon Horman <horms@xxxxxxxxxxxx>
Date: Sat, 2 May 2009 11:31:45 +1000
Cc: xen-devel@xxxxxxxxxxxxxxxxxxx, Keir Fraser <keir.fraser@xxxxxxxxxxxxx>, Ke Yu <ke.yu@xxxxxxxxx>, Liping Ke <liping.ke@xxxxxxxxx>
Delivery-date: Fri, 01 May 2009 18:32:15 -0700
Envelope-to: www-data@xxxxxxxxxxxxxxxxxxx
In-reply-to: <18939.3565.64740.886178@xxxxxxxxxxxxxxxxxxxxxxxx>
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: <20090501120342.GA19413@xxxxxxxxxxxx> <18939.3565.64740.886178@xxxxxxxxxxxxxxxxxxxxxxxx>
Sender: xen-devel-bounces@xxxxxxxxxxxxxxxxxxx
User-agent: Mutt/1.5.18 (2008-05-17)
On Fri, May 01, 2009 at 03:57:49PM +0100, Ian Jackson wrote:
> Simon Horman writes ("[Xen-devel] Regression in PCI pass-through from 
> qemu-xen changeset "Fix hvm guest cirrus_vga hvm s3 resume failure""):
> > Apologies if this has been reported elsewhere.
> 
> Not that I've seen.
> 
> > Changeset "Fix hvm guest cirrus_vga hvm s3 resume failure"
> > (08251d35eafe5bafff42d226ccd56277014b16e9) in qemu-xen-unstable.git
> > appears to cause a regression. This changeset was applied
> > between the xen-3.4.0-rc2 and xen-3.4.0-rc3 tags of qemu-xen-unstable.git.
> 
> You've definitely isolated it to this changeset ?
> 
> The symptoms you describe are very odd and don't seem to correspond
> meaningfully to anything in the changeset.  The changeset does two
> things:
> 
>  * Removes a memset to 0xff of the VGA screen memory.
>  * Moves forward vga_bios_init which just initialises a bunch
>    of the cirrus_vga registers, to put it before graphic_console_init.

Hi Ian,

you are right, that does seem somewhat odd. I will re-run my tests.

-- 
Simon Horman
  VA Linux Systems Japan K.K. Satellite Lab in Sydney, Australia
  H: www.vergenet.net/~horms/            W: www.valinux.co.jp/en


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