From mboxrd@z Thu Jan  1 00:00:00 1970
From: Roger Pau Monne <roger.pau@entel.upc.edu>
Subject: [PATCH] libxl: create pci backend only when there are
	pci devices
Date: Wed, 14 Sep 2011 14:19:23 +0200
Message-ID: <63e254468d6e8d81baea.1316002763@loki>
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# HG changeset patch
# User Roger Pau Monne <roger.pau@entel.upc.edu>
# Date 1316002720 -7200
# Node ID 63e254468d6e8d81baeafaed68f05791dc21eb4e
# Parent  ac33d68e89767d49113824e5661c49a5465a18e7
libxl: create pci backend only when there are pci devices.

Signed-off-by: Roger Pau Monne <roger.pau@entel.upc.edu>

diff -r ac33d68e8976 -r 63e254468d6e tools/libxl/libxl_create.c
--- a/tools/libxl/libxl_create.c	Thu Sep 08 15:13:06 2011 +0100
+++ b/tools/libxl/libxl_create.c	Wed Sep 14 14:18:40 2011 +0200
@@ -584,12 +584,14 @@ static int do_domain_create(libxl__gc *g
     for (i = 0; i < d_config->num_pcidevs; i++)
         libxl__device_pci_add(gc, domid, &d_config->pcidevs[i], 1);
 
-    ret = libxl__create_pci_backend(gc, domid, d_config->pcidevs,
-                                    d_config->num_pcidevs);
-    if (ret < 0) {
-        LIBXL__LOG(ctx, LIBXL__LOG_ERROR,
-                   "libxl_create_pci_backend failed: %d", ret);
-        goto error_out;
+    if (d_config->num_pcidevs > 0) {
+        ret = libxl__create_pci_backend(gc, domid, d_config->pcidevs,
+                                        d_config->num_pcidevs);
+        if (ret < 0) {
+            LIBXL__LOG(ctx, LIBXL__LOG_ERROR,
+                "libxl_create_pci_backend failed: %d", ret);
+            goto error_out;
+        }
     }
 
     if (d_config->c_info.type == LIBXL_DOMAIN_TYPE_PV &&