From: emellor@ewan <emellor@ewan>
Date: Mon, 3 Oct 2005 23:21:49 +0000 (+0100)
Subject: Added method XendDomain.privilegedDomain and use that inside DevController to
X-Git-Tag: archive/raspbian/4.8.0-1+rpi1~1^2~16763^2~56^2~9
X-Git-Url: https://dgit.raspbian.org/%22http:/www.example.com/cgi/%22https://%22%22/%22http:/www.example.com/cgi/%22https:/%22%22?a=commitdiff_plain;h=c9577eb490d71da71eaabdadb621ca33d1941f4b;p=xen.git

Added method XendDomain.privilegedDomain and use that inside DevController to
avoid hard-coding the domain ID 0.

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

diff --git a/tools/python/xen/xend/XendDomain.py b/tools/python/xen/xend/XendDomain.py
index f21d08edbb..81302ad031 100644
--- a/tools/python/xen/xend/XendDomain.py
+++ b/tools/python/xen/xend/XendDomain.py
@@ -284,6 +284,11 @@ class XendDomain:
                 pass
         return dominfo
 
+
+    def privilegedDomain(self):
+        return self.domains[PRIV_DOMAIN]
+
+ 
     def domain_unpause(self, id):
         """Unpause domain execution.
 
diff --git a/tools/python/xen/xend/server/DevController.py b/tools/python/xen/xend/server/DevController.py
index 0ede664ba0..c9fc72ebaa 100644
--- a/tools/python/xen/xend/server/DevController.py
+++ b/tools/python/xen/xend/server/DevController.py
@@ -189,8 +189,17 @@ class DevController:
         """
 
         import xen.xend.XendDomain
-        backdom = xen.xend.XendDomain.instance().domain_lookup_by_name(
-            sxp.child_value(config, 'backend', '0'))
+        xd = xen.xend.XendDomain.instance()
+
+        backdom_name = sxp.child_value(config, 'backend')
+        if backdom_name:
+            backdom = xd.domain_lookup_by_name(backdom_name)
+        else:
+            backdom = xd.privilegedDomain()
+
+        if not backdom:
+            raise VmError("Cannot configure device for unknown backend %s" %
+                          backdom_name)
 
         frontpath = self.frontendPath(devid)
         backpath  = self.backendPath(backdom, devid)