Remove the reason code from the destroy action -- the reason is only of value

on a graceful shutdown.  Clarify the semantic difference between poweroff and
halt (we use halt to mean 'shutdown and stop' and poweroff to mean 'shutdown
and do whatever the configured behaviour is').

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

tools/python/xen/sv/DomInfo.py

@@ -139,7 +139,7 @@ class DomActionTab( ActionTab ):
         if not dom is None and dom != '0':
     	   if DEBUG: print ">DomShutDown %s" % dom
            try:
-    	   	server.xend_domain_shutdown( int( dom ), "halt" )
+    	   	server.xend_domain_shutdown( int( dom ), "poweroff" )
            except:
            	pass
     
@@ -175,7 +175,7 @@ class DomActionTab( ActionTab ):
         if not dom is None and dom != '0':
     	   if DEBUG: print ">DomDestroy %s" % dom
            try:
-           	server.xend_domain_destroy( int( dom ), "halt" )
+           	server.xend_domain_destroy(int( dom ))
            except:
            	pass
 

tools/python/xen/xend/XendClient.py

@@ -232,10 +232,9 @@ class Xend:
                              {'op'      : 'sysrq',
                               'key'     : key})
 
-    def xend_domain_destroy(self, id, reason):
+    def xend_domain_destroy(self, id):
         return self.xendPost(self.domainurl(id),
-                             {'op'      : 'destroy',
-                              'reason'  : reason })
+                             {'op'      : 'destroy' })
 
     def xend_domain_save(self, id, filename):
         return self.xendPost(self.domainurl(id),

tools/python/xen/xend/server/SrvDomain.py

@@ -71,8 +71,7 @@ class SrvDomain(SrvDir):
 
     def op_destroy(self, op, req):
         fn = FormFn(self.xd.domain_destroy,
-                    [['dom',    'int'],
-                     ['reason', 'str']])
+                    [['dom',    'int']])
         val = fn(req.args, {'dom': self.dom.domid})
         req.setHeader("Location", "%s/.." % req.prePathURL())
         return val
@@ -232,8 +231,6 @@ class SrvDomain(SrvDir):
 
         req.write('<form method="post" action="%s">' % url)
         req.write('<input type="submit" name="op" value="destroy">')
-        req.write('<input type="radio" name="reason" value="halt" checked>Halt')
-        req.write('<input type="radio" name="reason" value="reboot">Reboot')
         req.write('</form>')
 
         req.write('<form method="post" action="%s">' % url)