diff -r fab6deef7e87 -r 5be0b38a85b2 tools/python/xen/xend/XendDomainInfo.py
--- a/tools/python/xen/xend/XendDomainInfo.py	Fri Mar  3 14:05:25 2006
+++ b/tools/python/xen/xend/XendDomainInfo.py	Wed Mar  8 22:25:17 2006
@@ -1543,10 +1543,11 @@
     controllerClasses[device_class] = cls
 
 
-from xen.xend.server import blkif, netif, tpmif, pciif, iopif, usbif
+from xen.xend.server import blkif, netif, tpmif, pciif, iopif, irqif, usbif
 addControllerClass('vbd',  blkif.BlkifController)
 addControllerClass('vif',  netif.NetifController)
 addControllerClass('vtpm', tpmif.TPMifController)
 addControllerClass('pci',  pciif.PciController)
 addControllerClass('ioports', iopif.IOPortsController)
+addControllerClass('irq',  irqif.IRQController)
 addControllerClass('usb',  usbif.UsbifController)
diff -r fab6deef7e87 -r 5be0b38a85b2 tools/python/xen/xend/server/iopif.py
--- a/tools/python/xen/xend/server/iopif.py	Fri Mar  3 14:05:25 2006
+++ b/tools/python/xen/xend/server/iopif.py	Wed Mar  8 22:25:17 2006
@@ -83,4 +83,4 @@
                 'ioports: Failed to configure legacy i/o range: %s - %s' %
                 (io_from, io_to))
 
-        return (dev, {}, {})
+        return (None, {}, {})
diff -r fab6deef7e87 -r 5be0b38a85b2 tools/python/xen/xm/create.py
--- a/tools/python/xen/xm/create.py	Fri Mar  3 14:05:25 2006
+++ b/tools/python/xen/xm/create.py	Wed Mar  8 22:25:17 2006
@@ -252,14 +252,20 @@
 gopts.var('pci', val='BUS:DEV.FUNC',
           fn=append_value, default=[],
           use="""Add a PCI device to a domain, using given params (in hex).
-         For example '-pci c0:02.1a'.
+         For example 'pci=c0:02.1a'.
          The option may be repeated to add more than one pci device.""")
 
 gopts.var('ioports', val='FROM[-TO]',
           fn=append_value, default=[],
           use="""Add a legacy I/O range to a domain, using given params (in hex).
-         For example '-ioports 02f8-02ff'.
+         For example 'ioports=02f8-02ff'.
          The option may be repeated to add more than one i/o range.""")
+
+gopts.var('irq', val='IRQ',
+          fn=append_value, default=[],
+          use="""Add an IRQ (interrupt line) to a domain.
+         For example 'irq=7'.
+         This option may be repeated to add more than one IRQ.""")
 
 gopts.var('usb', val='PATH',
           fn=append_value, default=[],
@@ -487,6 +493,13 @@
     for (io_from, io_to) in vals.ioports:
         config_ioports = ['ioports', ['from', io_from], ['to', io_to]]
         config_devs.append(['device', config_ioports])
+
+def configure_irq(config_devs, vals):
+    """Create the config for irqs.
+    """
+    for irq in vals.irq:
+        config_irq = ['irq', ['irq', irq]]
+        config_devs.append(['device', config_irq])
 
 def configure_usb(config_devs, vals):
     for path in vals.usb:
@@ -615,6 +628,7 @@
     configure_disks(config_devs, vals)
     configure_pci(config_devs, vals)
     configure_ioports(config_devs, vals)
+    configure_irq(config_devs, vals)
     configure_vifs(config_devs, vals)
     configure_usb(config_devs, vals)
     configure_vtpm(config_devs, vals)
diff -r fab6deef7e87 -r 5be0b38a85b2 tools/python/xen/xend/server/irqif.py
--- /dev/null	Fri Mar  3 14:05:25 2006
+++ b/tools/python/xen/xend/server/irqif.py	Wed Mar  8 22:25:17 2006
@@ -0,0 +1,73 @@
+#============================================================================
+# This library is free software; you can redistribute it and/or
+# modify it under the terms of version 2.1 of the GNU Lesser General Public
+# License as published by the Free Software Foundation.
+#
+# This library is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+# Lesser General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public
+# License along with this library; if not, write to the Free Software
+# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+#============================================================================
+# Copyright (C) 2004, 2005 Mike Wray <mike.wray@xxxxxx>
+# Copyright (C) 2005 XenSource Ltd
+# Copyright (C) 2005 Jody Belka
+#============================================================================
+# This code based on tools/python/xen/xend/server/iopif.py and modified
+# to handle interrupts
+#============================================================================
+
+
+import types
+
+import xen.lowlevel.xc;
+
+from xen.xend import sxp
+from xen.xend.XendError import VmError
+
+from xen.xend.server.DevController import DevController
+
+
+xc = xen.lowlevel.xc.xc()
+
+
+class IRQController(DevController):
+
+    def __init__(self, vm):
+        DevController.__init__(self, vm)
+
+
+    def getDeviceDetails(self, config):
+        """@see DevController.getDeviceDetails"""
+
+        def get_param(field):
+            try:
+                val = sxp.child_value(config, field)
+
+                if not val:
+                    raise VmError('irq: Missing %s config setting' % field)
+
+                if isinstance(val, types.StringType):
+                    return int(val,10)
+                    radix = 10
+                else:
+                    return val
+            except:
+                raise VmError('irq: Invalid config setting %s: %s' %
+                              (field, val))
+       
+        pirq = get_param('irq')
+
+        rc = xc.domain_irq_permission(dom          = self.getDomid(),
+                                      pirq         = pirq,
+                                      allow_access = True)
+
+        if rc < 0:
+            #todo non-fatal
+            raise VmError(
+                'irq: Failed to configure irq: %d' % (pirq))
+
+        return (None, {}, {})