[Xen-devel] [RFC] Disallowing xm operations on HVM domains

[Stefan Berger <stefanb@xxxxxxxxxx>]

Certain operations, such as for example
'xm block-attach' don't work on HVM domains and should be intercepted in
xend. The following patch shows an example of how this could be done. When
run, unfortunately the usage of block-detach is still shown.

  Stefan

diff -r 38f9bd7a4ce6 tools/python/xen/xend/XendDomainInfo.py
--- a/tools/python/xen/xend/XendDomainInfo.py        
        Tue Oct  3 10:39:22 2006
+++ b/tools/python/xen/xend/XendDomainInfo.py        
        Tue Oct  3 21:05:11 2006
@@ -1081,8 +1081,14 @@
 
 
     ## private:
+    
+    def disallowHVM(self):
+        if self.info['image'][0] == "hvm":
+           raise XendError("Operation not
allow on HVM-type domain.")
+            
 
     def createDevice(self, deviceClass, devconfig):
+        self.disallowHVM()
         return self.getDeviceController(deviceClass).createDevice(devconfig)
 
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