Automatic start Xen guests after Dom0 reboot

We can start virtual machines using "xm create". However after rebooting the xen host machine, the virtual machines (xen guests) are not started automatically. 

We can make a xen guest start automatically after xen host reboot. 

Let's say the configuration for the virtual machine is in /etc/xen/XenGuest1.cfg

So we can do like this:

mkdir -p /etc/xen/auto
cd /etc/xen/auto
ln -s /etc/xen/XenGuest1.cfg .
cd -

This creates a link to autostart the virtual machine.

and "XenGuest1.cfg" file must contain the following entries:

on_xend_stop  = 'shutdown'
on_xend_start = 'start'