[libvirt] Libvirt Support Virtio-serail

[Pankaj Rawat]

Thanks for the input
Actually I wanted to have private communication channel b/w host and guest
By default I cannot have multiple console on guest through virsh console guestname ( they all are dependent on each other , if I execute a command on one shell its output is reflected on all of them ).
I wanted to login into guest from multiple shells(and the console should be independent of each other)

Virtio-serial have this feature ,I have gone through various install option on web , but they don't seem to work.


Our kernel version for host and guest is 2.6.32-220.4.1.el6.x86_64

We goes through the mentioned link
And edit our xml file by adding

<channel type='pty'>
   <target type='virtio' name='arbitrary.virtio.serial.port.name'/>
   <address type='virtio-serial' controller='0' bus='0' port='1'/>
</channel>

Then we tried to access the channel device through virsh console guest_name dev_name

It gives error :-

# virsh console serial vport0p1
Connected to domain serial
Escape character is ^]
error: internal error cannot find character device vport0p1

but the vport

#ls -l /dev/virtio-ports/arbitrary.virtio.serial.port.name
lrwxrwxrwx. 1 root root 11 May 14 05:01 /dev/virtio-ports/arbitrary.virtio.serial.port.name -> ../vport0p1


Regards
Pankaj Rawat



-----Original Message-----
From: Christophe Fergeau [mailto:cfergeau at redhat.com]
Sent: Monday, May 14, 2012 1:55 PM
To: Pankaj Rawat
Cc: libvir-list at redhat.com
Subject: Re: [libvirt] Libvirt Support Virtio-serail

Hi Pankaj,

On Mon, May 14, 2012 at 03:52:54AM +0000, Pankaj Rawat wrote:
> I wanted to know whether libvirt has any kind of support for virt-io
> serial or not If yes then how can I use it?

I think http://libvirt.org/formatdomain.html#elementCharChannel is what you are looking for, if it's not, please describe in more details what setup you want to achieve.

Christophe



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