Re: [PATCH v3 1/2] qapi/machine-s390x: add QAPI event SCLP_CPI_INFO_AVAILABLE

[Thomas Huth]

On 16/10/2025 14.17, Shalini Chellathurai Saroja wrote:

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

Signed-off-by: Shalini Chellathurai Saroja <shal...@linux.ibm.com>
Suggested-by: Thomas Huth <th...@redhat.com>
---
  hw/s390x/sclpcpi.c      |  4 ++++
  qapi/machine-s390x.json | 21 +++++++++++++++++++++
  2 files changed, 25 insertions(+)

diff --git a/hw/s390x/sclpcpi.c b/hw/s390x/sclpcpi.c
index 7aa039d510..68fc1b809b 100644
--- 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 "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;
  }

diff --git a/qapi/machine-s390x.json b/qapi/machine-s390x.json

index 966dbd61d2..8412668b67 100644
--- a/qapi/machine-s390x.json
+++ b/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' ]
+}

Reviewed-by: Thomas Huth <th...@redhat.com>