[Xen-changelog] [xen-unstable] xl: support backend domid in config file for vifs

[Xen patchbot-unstable <patchbot-unstable@xxxxxxxxxxxxxxxxxxx>]

# HG changeset patch
# User Stefano Stabellini <sstabellini@xxxxxxxxxxxxx>
# Date 1281372241 -3600
# Node ID 36c9f6ea97827a26e06b5a6abc3003597b9e9292
# Parent  1d67dd785ef465da73181f26db4d468932fe61e7
xl: support backend domid in config file for vifs

Allow specification of backend domains for vifs, either in the config
file or via network-attach.

Signed-off-by: Mihir Nanavati <mihirn@xxxxxxxxx>
Signed-off-by: Stefano Stabellini <stefano.stabellini@xxxxxxxxxxxxx>
---
 tools/libxl/xl_cmdimpl.c |   12 ++++++++----
 1 files changed, 8 insertions(+), 4 deletions(-)

diff -r 1d67dd785ef4 -r 36c9f6ea9782 tools/libxl/xl_cmdimpl.c
--- a/tools/libxl/xl_cmdimpl.c  Mon Aug 09 17:43:18 2010 +0100
+++ b/tools/libxl/xl_cmdimpl.c  Mon Aug 09 17:44:01 2010 +0100
@@ -833,6 +833,11 @@ static void parse_config_data(const char
                     nic->script = strdup(p2 + 1);
                 } else if (!strcmp(p, "vifname")) {
                     nic->ifname = strdup(p2 + 1);
+                } else if (!strcmp(p, "backend")) {
+                    if(libxl_name_to_domid(&ctx, (p2 + 1), 
&(nic->backend_domid))) {
+                        fprintf(stderr, "Specified backend domain does not 
exist, defaulting to Dom0\n");
+                        nic->backend_domid = 0;
+                    }
                 } else if (!strcmp(p, "rate")) {
                     fprintf(stderr, "the rate parameter for vifs is currently 
not supported\n");
                 } else if (!strcmp(p, "accel")) {
@@ -4012,10 +4017,9 @@ int main_networkattach(int argc, char **
         } else if (!strncmp("script=", *argv, 6)) {
             nic.script = (*argv) + 6;
         } else if (!strncmp("backend=", *argv, 8)) {
-            val = strtoul((*argv) + 8, &endptr, 10);
-            if (((*argv) + 8) == endptr) {
-                fprintf(stderr, "Invalid parameter `backend'.\n");
-                return 1;
+            if(libxl_name_to_domid(&ctx, ((*argv) + 8), &val)) {
+                fprintf(stderr, "Specified backend domain does not exist, 
defaulting to Dom0\n");
+                val = 0;
             }
             nic.backend_domid = val;
         } else if (!strncmp("vifname=", *argv, 8)) {

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