Re: [Xen-devel] Qestion to gfx-passthrough to HVM linux domU

To:	"Timothy J. Moore" <Timothy.Moore@xxxxxxxxxxx>
Subject:	Re: [Xen-devel] Qestion to gfx-passthrough to HVM linux domU
From:	Dietmar Hahn <dietmar.hahn@xxxxxxxxxxxxxx>
Date:	Wed, 27 Jan 2010 15:26:24 +0100
Cc:	"xen-devel@xxxxxxxxxxxxxxxxxxx" <xen-devel@xxxxxxxxxxxxxxxxxxx>
Delivery-date:	Wed, 27 Jan 2010 06:26:50 -0800
Dkim-signature:	v=1; a=rsa-sha256; c=simple/simple; d=ts.fujitsu.com; i=dietmar.hahn@xxxxxxxxxxxxxx; q=dns/txt; s=s1536b; t=1264602388; x=1296138388; h=from:sender:reply-to:subject:date:message-id:to:cc: mime-version:content-transfer-encoding:content-id: content-description:resent-date:resent-from:resent-sender: resent-to:resent-cc:resent-message-id:in-reply-to: references:list-id:list-help:list-unsubscribe: list-subscribe:list-post:list-owner:list-archive; z=From:=20Dietmar=20Hahn=20<dietmar.hahn@xxxxxxxxxxxxxx> \|Subject:=20Re:=20[Xen-devel]=20Qestion=20to=20gfx-passth rough=20to=20HVM=20linux=20domU\|Date:=20Wed,=2027=20Jan =202010=2015:26:24=20+0100\|Message-Id:=20<201001271526.24 838.dietmar.hahn@xxxxxxxxxxxxxx>\|To:=20"Timothy=20J.=20Mo ore"=20<Timothy.Moore@xxxxxxxxxxx>\|Cc:=20"xen-devel@lists .xensource.com"=20<xen-devel@xxxxxxxxxxxxxxxxxxx> \|MIME-Version:=201.0\|Content-Transfer-Encoding:=207bit \|In-Reply-To:=20<E5E913F540B51B4C997F7A299316873596A56FC1 90@xxxxxxxxxxxxxxxxxx>\|References:=20<201001271345.41232. dietmar.hahn@xxxxxxxxxxxxxx>=20<E5E913F540B51B4C997F7A299 316873596A56FC190@xxxxxxxxxxxxxxxxxx>; bh=9ovf94PnUmXNU3jZvzXd2kZnOGDiX5IkCBc5LyXxEVE=; b=rzlMQG3cSBc/+M9l4Q8PfKwo34pjM/jiTV0HvtuBM++Mhn+8SDGSVl9z nbusEODrlcr//BLk7tuuULPehv6aCHIT68n8ytGHhvYcF8S4biu43Dzal gF/1Bmw1ENQIw+GRlDrWhIXZh96XwCtjVcrjX5VBvdxSocx8pouOwUGgE 8XHG2D+/rxfdaGF5HWJ7KJsCbyV8RREAlxTQnSlseZ2BfH5LxgXxHhf5Y 9Chpw06DjZ2ubU4xtlauw10CMPo1A;
Domainkey-signature:	s=s1536a; d=ts.fujitsu.com; c=nofws; q=dns; h=X-SBRSScore:X-IronPort-AV:Received:X-IronPort-AV: Received:Received:From:To:Subject:Date:User-Agent:Cc: References:In-Reply-To:MIME-Version:Content-Type: Content-Transfer-Encoding:Message-Id; b=Xs/jx/XPFFYZXPqEcneNCnvJKgP1TF/vO9sRKaMUtlHR7XgHss3DIQrA SvtaVQ0dlsTTPkTeQeGjLldDAuZPN9qaucarQU5wB4nRxOCD8wKRkPudQ AWZ6PE5USLI2s5ieDH3v356P+B8tg/SR4acffv4OshigGJJ7/2tBPHuCL afPeaV8ajYxgF04SglwLKZDaMSXN3XeDUzUdCF16DYXkKX7u+QHsdLeoC iqArqAyq5MwMIjBArGFgc6xE87cT7;
Envelope-to:	www-data@xxxxxxxxxxxxxxxxxxx
In-reply-to:	<E5E913F540B51B4C997F7A299316873596A56FC190@xxxxxxxxxxxxxxxxxx>
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:	<201001271345.41232.dietmar.hahn@xxxxxxxxxxxxxx> <E5E913F540B51B4C997F7A299316873596A56FC190@xxxxxxxxxxxxxxxxxx>
Sender:	xen-devel-bounces@xxxxxxxxxxxxxxxxxxx
User-agent:	KMail/1.12.3 (Linux/2.6.31.8-0.1-pae; KDE/4.3.3; i686; ; )

Hi Timothy,

Am 27.01.2010 schrieb Timothy J. Moore:
> Hi Dietmar,
> 
> Your card does not support FLR, but it should still work - the 1 time and 
> then Dom0 will need rebooting to reset the VGA card.

I never see the boot loader screen, not either after a dom0 reboot and starting 
the domU.

> 
> Sometimes TEXTMODE on the VGA does not work, then kdm loads with VGA mode and 
> you see DomU gfx. Ok!

Yes, this is what I see.

> Try creating a Serial port in DomU and using minicom etc in Dom0 (or via SSH 
> to Dom0) and debug via the Serial port.
>
I have access via a serial console in domU and the "xm console ..." in dom0.
 
> Which patches did you apply?

xen-vBAR-pBAR.patch
qemu-change-for-vBAR-pBAR.patch
qemu-change-for-vBAR-pBAR.patch
parts of xen-load-vbios-file.patch
parts of xen-gfx-passthrough-v2.patch

I use SLES11 SP1 Beta2 with a xen-4.0.0-pre version.

Dietmar.

> 
> Tim
> 
> -----Original Message-----
> From: xen-devel-bounces@xxxxxxxxxxxxxxxxxxx 
> [mailto:xen-devel-bounces@xxxxxxxxxxxxxxxxxxx] On Behalf Of Dietmar Hahn
> Sent: 27 January 2010 12:46
> To: xen-devel@xxxxxxxxxxxxxxxxxxx
> Subject: [Xen-devel] Qestion to gfx-passthrough to HVM linux domU
> 
> Hi list,
> 
> I try to get gfx-passthrough on a laptop. I inserted some patches from
> Weidong Han and I'am able to passthrough the primary card (the only gfx
> card) to the domU (Linux HVM). To connect to the domU I use the serial 
> console.
> I boot the domU but can't see the boot loader (grub) screen.
> Later the kernel messages are printed (not on every boot!).
> I can start X11 on the console (with the passthroughed card) and see the
> kdm screen on the console.
> If I read the vga-bios from /dev/mem within the domU it's the same as
> in dom0.
> My questions:
> Where to search for the missing boot console messages?
> Has this to do with the FLR?
> How can I debug this?
> 
> gfx: VGA compatible controller: nVidia Corporation G96M [Quadro FX 770M]
> 
> Thanks.
> 
> Dietmar.
> 
> 
-- 
Company details: http://ts.fujitsu.com/imprint.html

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

WARNING - OLD ARCHIVES

xen-devel

Re: [Xen-devel] Qestion to gfx-passthrough to HVM linux domU