Implement the Service-Call Logical Processor (SCLP) event
type Control-Program Identification (CPI) in QEMU.

Changed since v3:
- Add QOM object sclpcpi from ccw_init()
- Add SCLPEventCPI state to store the CPI data in the sclpcpi device
- Other minor changes

Changed since v2:
- Add SPDX license tag in the new file hw/s390x/sclpcpi.c
- Store the control-program Identification data in the sclpcpi device
- Update the description of CPI attributes
- Use ldq_be_p() intead of be64_to_cpu()
- Return the CPI attribute system-level as an integer in QMP
- Add compat handling for backward migration
- Other minor changes

Shalini Chellathurai Saroja (4):
  hw/s390x: add SCLP event type CPI
  hw/s390x: add Control-Program Identification to QOM
  hw/s390x: support migration of CPI data
  hw/s390x: compat handling for backward migration

 hw/s390x/event-facility.c          |   2 +
 hw/s390x/meson.build               |   1 +
 hw/s390x/s390-virtio-ccw.c         |  22 ++++
 hw/s390x/sclpcpi.c                 | 156 +++++++++++++++++++++++++++++
 include/hw/s390x/event-facility.h  |  22 ++++
 include/hw/s390x/s390-virtio-ccw.h |   1 +
 qapi/machine.json                  |  58 +++++++++++
 7 files changed, 262 insertions(+)
 create mode 100644 hw/s390x/sclpcpi.c

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2.49.0