Add and use XendDomainInfo.getBackendFlags to decouple image.py from the

internals of XendDomainInfo, in preparation for changing the latter.

Signed-off-by: Ewan Mellor <ewan@xensource.com>

tools/python/xen/xend/XendDomainInfo.py

@@ -354,6 +354,10 @@ class XendDomainInfo:
         self.storeDom("store/ring-ref", ref)
 
 
+    def getBackendFlags(self):
+        return self.backend_flags
+
+
     def closeStoreChannel(self):
         """Close the store channel, if any.  Nothrow guarantee."""
         

tools/python/xen/xend/image.py

@@ -188,7 +188,7 @@ class ImageHandler:
             return
 
         # Set params and call buildDomain().
-        self.flags = self.vm.backend_flags
+        self.flags = self.vm.getBackendFlags()
 
         if not os.path.isfile(self.kernel):
             raise VmError('Kernel image does not exist: %s' % self.kernel)