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-rw-r--r--hw/s390x/cpu-topology.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/hw/s390x/cpu-topology.c b/hw/s390x/cpu-topology.c
index f3771f5045..327bccea4f 100644
--- a/hw/s390x/cpu-topology.c
+++ b/hw/s390x/cpu-topology.c
@@ -24,6 +24,7 @@
 #include "hw/s390x/s390-virtio-ccw.h"
 #include "hw/s390x/cpu-topology.h"
 #include "qapi/qapi-commands-machine-target.h"
+#include "qapi/qapi-events-machine-target.h"
 
 /*
  * s390_topology is used to keep the topology information.
@@ -136,6 +137,7 @@ void s390_handle_ptf(S390CPU *cpu, uint8_t r1, uintptr_t ra)
         } else {
             s390_topology.polarization = polarization;
             s390_cpu_topology_set_changed(true);
+            qapi_event_send_cpu_polarization_change(polarization);
             setcc(cpu, 0);
         }
         break;