## Description: add some description
## Origin/Author: add some origin or author
## Bug: bug URL
Index: qemu-4.2/hw/s390x/tod-kvm.c
===================================================================
--- qemu-4.2.orig/hw/s390x/tod-kvm.c
+++ qemu-4.2/hw/s390x/tod-kvm.c
@@ -13,6 +13,7 @@
 #include "qemu/module.h"
 #include "sysemu/runstate.h"
 #include "hw/s390x/tod.h"
+#include "hw/s390x/pv.h"
 #include "kvm_s390x.h"
 
 static void kvm_s390_get_tod_raw(S390TOD *tod, Error **errp)
@@ -84,6 +85,14 @@ static void kvm_s390_tod_vm_state_change
     S390TODState *td = opaque;
     Error *local_err = NULL;
 
+    /*
+     * Under PV, the clock is under ultravisor control, hence we cannot restore
+     * it on resume.
+     */
+    if (s390_is_pv()) {
+        return;
+    }
+
     if (running && td->stopped) {
         /* Set the old TOD when running the VM - start the TOD clock. */
         kvm_s390_set_tod_raw(&td->base, &local_err);