[virt-tools-list] domain-0 not showing up on virt-manager console

[Wayne Mills]

thanks Jim and Cole, sounds like I should not be concerned.

Thanks
Wayne

On Fri, Feb 6, 2015 at 8:49 PM, Jim Fehlig <jfehlig at suse.com> wrote:

> Wayne Mills wrote:
> > Hi,
> >
> > I've been following this website to create VM's:
> > http://wiki.xen.org/wiki/DomU_Install_with_Virt-Manager .  As shown,
> > when virt-manager is started, it shows domain-0 as one of the VM's.
> >
> > My virt-manager console does not show domain-0.  It only shows the VM
> > I created (ubuntu1404svr) based on amd64 ubuntu server ISO.  Yet, I do
> > see the qemu processes running for both the server and domain0 images:
> >
> > root     28243     1  0 04:20 ?        00:00:53
> > /usr/bin/qemu-system-i386 -xen-domid 14 -chardev
> > socket,id=libxl-cmd,path=/var/run/xen/qmp-libxl-14,server,nowait -mon
> > chardev=libxl-cmd,mode=control -nodefaults *-name ubuntu1404svr* -vnc
> > 127.0.0.1:0 <http://127.0.0.1:0> -k en-us -serial pty -device
> > cirrus-vga -global vga.vram_size_mb=9 -boot order=dc -device
> > rtl8139,id=nic0,netdev=net0,mac=00:16:3e:c3:44:fe -netdev
> > type=tap,id=net0,ifname=vif14.0-emu,script=no,downscript=no -machine
> > xenfv -m 4087 -drive
> >
> *file=/dev/vg0/ubuntu1401svr*,if=ide,index=0,media=disk,format=raw,cache=writeback
> > -drive if=ide,index=2,media=cdrom,cache=writeback,id=ide-5632
> >
> > root      1226     1  0 Feb05 ?        00:00:06
> > /usr/bin/qemu-system-i386 -xen-domid 0 -xen-attach *-name dom0*
> > -nographic -M xenpv -daemonize -monitor /dev/null -serial /dev/null
> > -parallel /dev/null -pidfile /var/run/qemu-dom0.pid
> >
> >
> > Before I go much further in my activities, I want to be sure domain-0
> > is up and running properly.  The lack of domain-0 visibility from
> > virt-manager has me concerned.
>
> I assume you are using Xen's libxl stack and libvirt's libxl driver?
> Currently the libxl driver ignores dom0, which has been the case since
> it was introduced in libvirt.  I have a stale patch that introduces dom0
> support in the libxl driver, but it needs some work to restrict what
> operations can be performed.  E.g. the old xen driver would not allow
> rebooting or destroying dom0.  Actually, xend disallowed these
> operations and reported an error when attempting something like 'virsh
> destroy 0'.  libxl wont destroy or reboot dom0, but it doesn't report an
> error either.  Failing these operations and reporting a proper error
> will need to be done in the libvirt libxl driver.
>
> Regards,
> Jim
>
>
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