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] getting debug output out of hvmloader and qemu-dm

To: "Kamala Narasimhan" <Kamala.Narasimhan@xxxxxxxxxx>, <xen-devel@xxxxxxxxxxxxxxxxxxx>
Subject: RE: [Xen-devel] getting debug output out of hvmloader and qemu-dm
From: "James Harper" <james.harper@xxxxxxxxxxxxxxxx>
Date: Thu, 3 Jul 2008 12:47:55 +1000
Cc:
Delivery-date: Wed, 02 Jul 2008 19:48:17 -0700
Envelope-to: www-data@xxxxxxxxxxxxxxxxxxx
In-reply-to: <0519110A9448BC429B231AD118D7270804461B85@xxxxxxxxxxxxxxxxxxxxxx>
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: <AEC6C66638C05B468B556EA548C1A77D0148FC8D@trantor> <0519110A9448BC429B231AD118D7270804461B85@xxxxxxxxxxxxxxxxxxxxxx>
Sender: xen-devel-bounces@xxxxxxxxxxxxxxxxxxx
Thread-index: AcjcqQ5xMS0OLYZTQCqWCWj0vXkbuAADIf9wAABe9iA=
Thread-topic: [Xen-devel] getting debug output out of hvmloader and qemu-dm
> If it is the *DEBUG* preprocessor flag in vgabios that you enabled,
did
> you check xen message buffer (xm dmesg) or serial output?

'xm dmesg' doesn't show me anything... how might I look at the serial
output?

Looking at vgabios.c, the 'printf' function that is used for debugging
appears to write to port 0xe9, but I can't see that anything actually
reads that.

James


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