Script to start domU

#!/bin/bash

#
# This script executes the virtual machine defined by a configuration
# script in a passthrough environment.
#

#pci  = [ '01:00.0','01:00.1','00:1b.0','00:1a.0','00:1d.0' ]

# The name of the script defining the virtual machine to run.
declare VMscript;

# The list of PCI devices to be passed through.
declare -r PCIdevices="0000:01:00.0 0000:01:00.1 0000:00:1a.0 0000:00:1d.0";

# The list of PCI devices which are to be re-enabled.
declare -r EnableDevices="0000:01:00.0 0000:01:00.1";

# The list of PCI drivers which are to be re-bound and the devices which
# they are to be bound to.
declare -r PCIdrivers="ehci_hcd";
declare -r ehci_hcd="0000:00:1a.0";


#
# This function is responsible for unbinding and attaching the PCI
# devices to be passed through to the pciback driver.
#

function unbind_devices() {

        local dev;

        for dev in $PCIdevices;
        do
                [ ! -e /sys/bus/pci/devices/$dev/driver/unbind ] || \
                        echo -n $dev > /sys/bus/pci/devices/$dev/driver/unbind;
                echo -n $dev > /sys/bus/pci/drivers/pciback/new_slot;
                echo -n $dev > /sys/bus/pci/drivers/pciback/bind;
        done;

        return;

}

#
# Main program starts here.
#
if [ -z "$1" ]; then
        echo "No virtual machine script specified.";
        exit 1;
fi;
VMscript="$1";


#
# Unbind devices and start the virtual machine.
#
unbind_devices;
sleep 1s;

xl -f create $VMscript