Initialization of new domU config options via XenAPI

Many of the new domU config options related to hvm guests (e.g. hpet,
rtc_timeoffset, etc.) are not initialized with default values via
XenAPI, which prevents starting an hvm domU created through XenAPI.
This patch ensures the new options are set with appropriate default
values in XendConfig platform sanity check.

Signed-off-by: Jim Fehlig <jfehlig@novell.com>

tools/python/xen/xend/XendConfig.py

@@ -405,6 +405,12 @@ class XendConfig(dict):
                 self['platform']['device_model'] = xen.util.auxbin.pathTo("qemu-dm")
 
         if self.is_hvm():
+            if 'timer_mode' not in self['platform']:
+                self['platform']['timer_mode'] = 0
+            if 'rtc_timeoffset' not in self['platform']:
+                self['platform']['rtc_timeoffset'] = 0
+            if 'hpet' not in self['platform']:
+                self['platform']['hpet'] = 0
             if 'loader' not in self['platform']:
                 # Old configs may have hvmloader set as PV_kernel param
                 if self.has_key('PV_kernel') and re.search('hvmloader', self['PV_kernel']):