--- /dev/null
+<?xml version="1.0"?>
+<facility name="xen">
+ <description>The Xen facility containts hypervisor events.</description>
+
+ <event name="wtrace0">
+ <field name="event"><uint size="4"/></field>
+ </event>
+
+ <event name="wtrace1">
+ <field name="event"><uint size="4"/></field>
+ <field name="data1"><ulong/></field>
+ </event>
+
+ <event name="wtrace2">
+ <field name="event"><uint size="4"/></field>
+ <field name="data1"><ulong/></field>
+ <field name="data2"><ulong/></field>
+ </event>
+
+ <event name="wtrace3">
+ <field name="event"><uint size="4"/></field>
+ <field name="data1"><ulong/></field>
+ <field name="data2"><ulong/></field>
+ <field name="data3"><ulong/></field>
+ </event>
+
+ <event name="wtrace4">
+ <field name="event"><uint size="4"/></field>
+ <field name="data1"><ulong/></field>
+ <field name="data2"><ulong/></field>
+ <field name="data3"><ulong/></field>
+ <field name="data4"><ulong/></field>
+ </event>
+
+ <event name="wtrace5">
+ <field name="event"><uint size="4"/></field>
+ <field name="data1"><ulong/></field>
+ <field name="data2"><ulong/></field>
+ <field name="data3"><ulong/></field>
+ <field name="data4"><ulong/></field>
+ <field name="data5"><ulong/></field>
+ </event>
+
+</facility>