hw/s390x: support migration of CPI data

Register Control-Program Identification data with the live
migration infrastructure.

Signed-off-by: Shalini Chellathurai Saroja <shalini@linux.ibm.com>
Reviewed-by: Nina Schoetterl-Glausch <nsg@linux.ibm.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Message-ID: <20250616140107.990538-4-shalini@linux.ibm.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>

diff --git a/hw/s390x/sclpcpi.c b/hw/s390x/sclpcpi.c
index 440a5ff1eb64643a37162b5e03c6dc6341a3057f..7aa039d510035e33e51eaa2e30fcb183f15b72fa 100644 (file)
--- a/hw/s390x/sclpcpi.c
+++ b/hw/s390x/sclpcpi.c
@@ -54,6 +54,7 @@
 #include "hw/s390x/event-facility.h"
 #include "hw/s390x/ebcdic.h"
 #include "qapi/qapi-visit-machine.h"
+#include "migration/vmstate.h"
 
 typedef struct Data {
     uint8_t id_format;
@@ -145,12 +146,26 @@ static void get_timestamp(Object *obj, Visitor *v, const char *name,
     visit_type_uint64(v, name, &e->timestamp, errp);
 }
 
+static const VMStateDescription vmstate_sclpcpi = {
+    .name = "s390_control_program_id",
+    .version_id = 0,
+    .fields = (const VMStateField[]) {
+        VMSTATE_UINT8_ARRAY(system_type, SCLPEventCPI, 8),
+        VMSTATE_UINT8_ARRAY(system_name, SCLPEventCPI, 8),
+        VMSTATE_UINT64(system_level, SCLPEventCPI),
+        VMSTATE_UINT8_ARRAY(sysplex_name, SCLPEventCPI, 8),
+        VMSTATE_UINT64(timestamp, SCLPEventCPI),
+        VMSTATE_END_OF_LIST()
+    }
+};
+
 static void cpi_class_init(ObjectClass *klass, const void *data)
 {
     DeviceClass *dc = DEVICE_CLASS(klass);
     SCLPEventClass *k = SCLP_EVENT_CLASS(klass);
 
     dc->user_creatable = false;
+    dc->vmsd =  &vmstate_sclpcpi;
 
     k->can_handle_event = can_handle_event;
     k->get_send_mask = send_mask;