xen: set num_processors

Someone's got to do it.

Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
Cc: Stephen Tweedie <sct@redhat.com>
Cc: Eduardo Habkost <ehabkost@redhat.com>
Cc: Mark McLoughlin <markmc@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

1 files changed, 3 insertions, 1 deletions

diff --git a/arch/x86/xen/smp.c b/arch/x86/xen/smp.c
index 800bb2191e2a..8310ca0ea375 100644
--- a/arch/x86/xen/smp.c
+++ b/arch/x86/xen/smp.c
@@ -155,8 +155,10 @@ static void __init xen_fill_possible_map(void)
 
         for (i = 0; i < NR_CPUS; i++) {
                 rc = HYPERVISOR_vcpu_op(VCPUOP_is_up, i, NULL);
-                if (rc >= 0)
+                if (rc >= 0) {
+                        num_processors++;
                         cpu_set(i, cpu_possible_map);
+                }
         }
 }