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-users

RE: [Xen-users] Need to Access 2 Serial Ports in HVM Win 2K3 server.

To: "'David Griswold'" <david.griswold@xxxxxxxxx>, <xen-users@xxxxxxxxxxxxxxxxxxx>
Subject: RE: [Xen-users] Need to Access 2 Serial Ports in HVM Win 2K3 server.
From: "Dustin Henning" <Dustin.Henning@xxxxxxxxxxx>
Date: Mon, 11 May 2009 09:39:37 -0400
Cc:
Delivery-date: Mon, 11 May 2009 06:40:38 -0700
Envelope-to: www-data@xxxxxxxxxxxxxxxxxxx
In-reply-to: <23463476.post@xxxxxxxxxxxxxxx>
List-help: <mailto:xen-users-request@lists.xensource.com?subject=help>
List-id: Xen user discussion <xen-users.lists.xensource.com>
List-post: <mailto:xen-users@lists.xensource.com>
List-subscribe: <http://lists.xensource.com/mailman/listinfo/xen-users>, <mailto:xen-users-request@lists.xensource.com?subject=subscribe>
List-unsubscribe: <http://lists.xensource.com/mailman/listinfo/xen-users>, <mailto:xen-users-request@lists.xensource.com?subject=unsubscribe>
Organization: PRD, Inc.
References: <23463476.post@xxxxxxxxxxxxxxx>
Reply-to: Dustin.Henning@xxxxxxxxxxx
Sender: xen-users-bounces@xxxxxxxxxxxxxxxxxxx
Thread-index: AcnRIjhGP1+PCVrqRUuL4syvWg/w6QBGvjLg
        This might not be something you want to mess with, but if you have
VT-D or IOMMU capability, you should be able to pass a PCI card through to
your guest, and I believe you can still get a PCI card that has serial
ports.  It may also be more plausible to make PCI passthrough work without
those than to add a second virtual one, but it should be noted that doing so
would be a security risk.  It should also be possible to somehow use serial
ports over the network, that may not work for you needs, but one example
would be to get a networked usb hub and connect to it, connecting usb ->
serial adapter ports to it.  I don't know if you'll be able to find one that
meets your needs, though, I have seen hit and miss functionality using usb
-> serial adapter ports for various serial functions.  I can't guarantee
that any of these ideas would work, but they might be worth a shot.
        Dustin

-----Original Message-----
From: xen-users-bounces@xxxxxxxxxxxxxxxxxxx
[mailto:xen-users-bounces@xxxxxxxxxxxxxxxxxxx] On Behalf Of David Griswold
Sent: Saturday, May 09, 2009 23:48
To: xen-users@xxxxxxxxxxxxxxxxxxx
Subject: [Xen-users] Need to Access 2 Serial Ports in HVM Win 2K3 server.


Here is my setup - CentOS 5.2, fully yum-updated and Xen 3.0.3.  I have a
working Windows 2003 Server HVM that has access to one serial port via
emulation (serial="/dev/ttySXX in the domU config file.)  I have tried,
without success, to give two serial ports to the HVM by modifying the config
file as follows:

serial = "/dev/ttys0"
serial = "/dev/ttys1"
(this did nothing - no serial ports in the HVM - I realize now this is the
wrong syntax)

or

serial = [ "/dev/ttys0", "/dev/ttys1" ]

This is the correct syntax, but the HVM won't start.

I have googled this until my eyes have bled, and the conclusion I have come
to is that the binaries are complied to support just one serial port per
HVM.  So here is my questions:  Can I modify the config and recompile the
source for xen and/or qemu to provide more than one serial port per HVM.

If I can just get someone to point me in the right direction, I would
greatly appreciate it.

Thanks,
David
-- 
View this message in context:
http://www.nabble.com/Need-to-Access-2-Serial-Ports-in-HVM-Win-2K3-server.-t
p23463476p23463476.html
Sent from the Xen - User mailing list archive at Nabble.com.


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



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