diff --git a/poky/scripts/runqemu b/poky/scripts/runqemu
index edd17d0..e2dc529 100755
--- a/poky/scripts/runqemu
+++ b/poky/scripts/runqemu
@@ -540,13 +540,13 @@
     def check_kvm(self):
         """Check kvm and kvm-host"""
         if not (self.kvm_enabled or self.vhost_enabled):
-            self.qemu_opt_script += ' %s %s' % (self.get('QB_MACHINE'), self.get('QB_CPU'))
+            self.qemu_opt_script += ' %s %s %s' % (self.get('QB_MACHINE'), self.get('QB_CPU'), self.get('QB_SMP'))
             return
 
         if not self.get('QB_CPU_KVM'):
             raise RunQemuError("QB_CPU_KVM is NULL, this board doesn't support kvm")
 
-        self.qemu_opt_script += ' %s %s' % (self.get('QB_MACHINE'), self.get('QB_CPU_KVM'))
+        self.qemu_opt_script += ' %s %s %s' % (self.get('QB_MACHINE'), self.get('QB_CPU_KVM'), self.get('QB_SMP'))
         yocto_kvm_wiki = "https://wiki.yoctoproject.org/wiki/How_to_enable_KVM_for_Poky_qemu"
         yocto_paravirt_kvm_wiki = "https://wiki.yoctoproject.org/wiki/Running_an_x86_Yocto_Linux_image_under_QEMU_KVM"
         dev_kvm = '/dev/kvm'