[XenPPC] virt-manager/virsh connection errors - fixed

[Christian Ehrhardt <ehrhardt@xxxxxxxxxxxxxxxxxx>]

After fixing the bad paddr stuff with the workaround the next issue I 
faced were connection errors:
virt-manager:
Unable to open connection to hypervisor URI 'xen':
virtsh:
virsh: error: failed to connect to the hypervisor

After debugging a bit the problem looks pretty trivial - libvirt tries 
to access
 /var/lib/xend/xend-socket
But according to netstat -eeapn we have only
 unix  2      [ ACC ]     STREAM     LISTENING     17684  3683/python 
/var/run/xend/xen-api.sock
 unix  2      [ ACC ]     STREAM     LISTENING     17687  3683/python 
/var/run/xend/xmlrpc.sock
Since there is now a api/rpc this might be a 3.1 change not reflected in 
libvirt or not configured locally.
In my libvirt src from cvs 01.07. it's still hardcoded in xend_internal.c:
 xenDaemonOpen_unix(conn, "/var/lib/xend/xend-socket");
Still that way in the latest cvs updated today.

The default config of xend as it is currently in the repostitory seems 
to have the config in /etc/xen/xend-config.sxp default to no and 
commented out:
 #(xend-unix-server no)
change this to
 (xend-unix-server yes)

--

Grüsse / regards, 
Christian Ehrhardt
IBM Linux Technology Center, Open Virtualization
+49 7031/16-3385
Ehrhardt@xxxxxxxxxxxxxxxxxx
Ehrhardt@xxxxxxxxxx

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