From mboxrd@z Thu Jan  1 00:00:00 1970
From: Marek Marczykowski <marmarek@mimuw.edu.pl>
Subject: [PATCH 02 of 10] libxl: Do not start stubdom when not
	needed
Date: Fri, 03 Jun 2011 00:35:32 +0200
Message-ID: <59cff6b471f3f0c1e913.1307054132@devel14>
References: <patchbomb.1307054130@devel14>
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# HG changeset patch
# User Marek Marczykowski <marmarek@mimuw.edu.pl>
# Date 1306962900 -7200
# Node ID 59cff6b471f3f0c1e91349ed6653a47a40d4fd55
# Parent  e3a3f5cc95349e92b7cb8b1448e999ffc16bd060
libxl: Do not start stubdom when not needed

Do not start stubdom when there is any disk - only when there are disks
requiring it.

Signed-off-by: Marek Marczykowski <marmarek@mimuw.edu.pl>

diff --git a/tools/libxl/libxl_dm.c b/tools/libxl/libxl_dm.c
--- a/tools/libxl/libxl_dm.c
+++ b/tools/libxl/libxl_dm.c
@@ -828,8 +828,14 @@
         goto out;
     }
 
-    if (nr_disks > 0 && !libxl__blktap_enabled(&gc))
-        ret = 1;
+    if (nr_disks > 0 && !libxl__blktap_enabled(&gc)) {
+        for (i = 0; i < nr_disks; i++) {
+            if (disks[i].backend == DISK_BACKEND_TAP || disks[i].backend == DISK_BACKEND_QDISK) {
+                ret = 1;
+                goto out;
+            }
+        }
+    }
 
 out:
     libxl__free_all(&gc);