commit 9785f2b6f203ad5f153e68829b95f0e8c30a1560
Author: Jim Fehlig <jfehlig@suse.com>
Date:   Tue Oct 23 11:18:20 2012 -0600

    Fix detection of Xen sysctl version 9
    
    In commit 371ddc98, I mistakenly added the check for sysctl
    version 9 after setting the hypercall version to 1, which will
    fail with
    
    error : xenHypervisorDoV1Op:967 : Unable to issue hypervisor
    ioctl 3166208: Function not implemented
    
    This check should be included along with the others that use
    hypercall version 2.

Index: libvirt-0.10.2/src/xen/xen_hypervisor.c
===================================================================
--- libvirt-0.10.2.orig/src/xen/xen_hypervisor.c
+++ libvirt-0.10.2/src/xen/xen_hypervisor.c
@@ -2157,13 +2157,6 @@ xenHypervisorInit(struct xenHypervisorVe
         }
     }
 
-    hv_versions.hypervisor = 1;
-    hv_versions.sys_interface = -1;
-    if (virXen_getdomaininfo(fd, 0, &info) == 1) {
-        VIR_DEBUG("Using hypervisor call v1");
-        goto done;
-    }
-
     /* Xen 4.2
      * sysctl version 9 -> xen-unstable c/s 24102:dc8e55c90604
      * domctl version 8 -> unchanged from Xen 4.1
@@ -2177,6 +2170,13 @@ xenHypervisorInit(struct xenHypervisorVe
         }
     }
 
+    hv_versions.hypervisor = 1;
+    hv_versions.sys_interface = -1;
+    if (virXen_getdomaininfo(fd, 0, &info) == 1) {
+        VIR_DEBUG("Using hypervisor call v1");
+        goto done;
+    }
+
     /*
      * we failed to make the getdomaininfolist hypercall
      */