[libvirt] Fwd: Re: need your help about virito vmchannel

[Matthew Booth]

FYI for the list. I haven't looked at this yet.

Matt

-------- Original Message --------
Subject: Re: need your help about virito vmchannel
Date: Tue, 4 May 2010 18:00:02 +0530
From: Amit Shah <amit.shah at redhat.com>
To: Matthew Booth <mbooth at redhat.com>
CC: Jianlin Liu <jialiu at redhat.com>

On (Tue) May 04 2010 [13:18:30], Matthew Booth wrote:
> On 04/05/10 12:48, Jianlin Liu wrote:
> > Hi Matthew,
> > 
> >    I want to create a virtio vm channel in my guest. So I add the followiong to my guest xml file:
> > <channel type='pty'>
> >   <target type='virtio' name='org.linux-kvm.port.0'/>
> > </channel>
> 
> Jianlin,
> 
> While I wrote the libvirt->vmchannel glue, I'm not actually that
> familiar with vmchannel itself. I've cc'd Amit, who hopefully might
> recognise this problem and tell me how to fix it ;)
> 
> Amit,
> 
> Any idea what's going on here?

Yes:

> > Then I try to start the guest:
> > # virsh start winxp
> > error: Failed to start domain winxp
> > error: internal error Process exited while reading console log output: char device redirected to /dev/pts/4
> > char device redirected to /dev/pts/5
> > qemu-kvm: -device virtio-serial-pci,id=virtio-serial0,max_ports=0,vectors=0,bus=pci.0,addr=0x5: Device 'virtio-serial-pci' could not be initialized

With max_ports=0, the virtio-serial device doesn't get created and hence
this error.

		Amit