kvm: add error message for when SMP is requested

Right now, if you try e.g. '-smp 2' you just get 'failed to
initialize KVM'.

Signed-off-by: Mark McLoughlin <markmc@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>

diff --git a/kvm-all.c b/kvm-all.c
index 2b7d5350304450ae884ec0dc23414a206de1fd6c..7435d6794ce5065d7d1415eb32b501443fee88a5 100644 (file)
--- a/kvm-all.c
+++ b/kvm-all.c
@@ -286,8 +286,10 @@ int kvm_init(int smp_cpus)
     int ret;
     int i;
 
-    if (smp_cpus > 1)
+    if (smp_cpus > 1) {
+        fprintf(stderr, "No SMP KVM support, use '-smp 1'\n");
         return -EINVAL;
+    }
 
     s = qemu_mallocz(sizeof(KVMState));