qapi/machine-s390x: add QAPI event SCLP_CPI_INFO_AVAILABLE

Add QAPI event SCLP_CPI_INFO_AVAILABLE to notify the availability
of Control-Program Identification data in QOM.

Signed-off-by: Shalini Chellathurai Saroja <shalini@linux.ibm.com>
Suggested-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Hendrik Brueckner <brueckner@linux.ibm.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Message-ID: <20251016121708.334133-1-shalini@linux.ibm.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>

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 "qapi/qapi-events-machine-s390x.h"
 #include "migration/vmstate.h"
 
 typedef struct Data {
@@ -106,6 +107,9 @@ static int write_event_data(SCLPEvent *event, EventBufferHeader *evt_buf_hdr)
     e->timestamp = qemu_clock_get_ns(QEMU_CLOCK_HOST);
 
     cpim->ebh.flags = SCLP_EVENT_BUFFER_ACCEPTED;
+
+    qapi_event_send_sclp_cpi_info_available();
+
     return SCLP_RC_NORMAL_COMPLETION;
 }
 

qapi/machine-s390x.json

@@ -119,3 +119,24 @@
 { 'command': 'query-s390x-cpu-polarization', 'returns': 'CpuPolarizationInfo',
   'features': [ 'unstable' ]
 }
+
+##
+# @SCLP_CPI_INFO_AVAILABLE:
+#
+# Emitted when the Control-Program Identification data is available
+# in the QOM tree.
+#
+# Features:
+#
+# @unstable: This event is experimental.
+#
+# Since: 10.2
+#
+# .. qmp-example::
+#
+#     <- { "event": "SCLP_CPI_INFO_AVAILABLE",
+#          "timestamp": { "seconds": 1401385907, "microseconds": 422329 } }
+##
+{ 'event': 'SCLP_CPI_INFO_AVAILABLE',
+  'features': [ 'unstable' ]
+}