Exit the VM from OVM Console

Most of us are aware of this command

xm console {vm-name} to connect the VM from dom0

But once you have initiated, you wont be able to go back to dom0.These are the control commands that will help you to get back to dom0

ctrl + ]   "->" If you have initiated the command from the console
ctrl + 5  "->" If you have initiated the command via Putty Session