[Libvir] PATCH: Fix qemu-dm path in capabilities info

[Daniel P. Berrange]

The current Xen capabilities XML data chooses between /usr/lib/xen/bin/qemu-dm
and /usr/lib64/xen/bin/qemu-dm based on whether the guest arch is 64 bit.
This is incorrect because the path is actually determined based on the host
OS. Only x86_64 uses /usr/lib64, all other arches just use /usr/lib - even
on ia64. So this patch changes the logic so that /usr/lib64 is only used if
we see an x86_64 guest present - this implies host is x86_64 and that all
guests whether 32 or 64bit shoudl use /usr/lib64

Dan.

diff -r 38f2abccef9b src/xen_internal.c
--- a/src/xen_internal.c	Sun Jan 20 11:28:37 2008 -0500
+++ b/src/xen_internal.c	Sun Jan 20 12:36:23 2008 -0500
@@ -2186,6 +2186,7 @@ xenHypervisorMakeCapabilitiesXML(virConn
         int ia64_be;
     } guest_archs[32];
     int nr_guest_archs = 0;
+    int lib64 = 0;
 
     virBufferPtr xml;
     char *xml_str;
@@ -2261,6 +2262,7 @@ xenHypervisorMakeCapabilitiesXML(virConn
                 else if (strncmp (&token[subs[2].rm_so], "x86_64", 6) == 0) {
                     model = "x86_64";
                     bits = 64;
+                    lib64 = 1;
                 }
                 else if (strncmp (&token[subs[2].rm_so], "ia64", 4) == 0) {
                     model = "ia64";
@@ -2376,7 +2378,7 @@ xenHypervisorMakeCapabilitiesXML(virConn
       <machine>pc</machine>\n\
       <machine>isapc</machine>\n\
       <loader>/usr/lib/xen/boot/hvmloader</loader>\n",
-                                   guest_archs[i].bits == 64 ? "64" : "");
+                                   lib64 ? "64" : "");
             if (r == -1) goto vir_buffer_failed;
         }
         r = virBufferAdd (xml,


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