target/s390x: Register CPUClass:list_cpus

Both s390_cpu_list() and s390_set_qemu_cpu_model() are
defined in cpu_models.c, move their declarations in the
related "cpu_models.h" header. Use full path to header
in s390-virtio-ccw.c file.

Register s390_cpu_list() as CPUClass:list_cpus callback
and remove the cpu_list definition.

Reviewed-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Zhao Liu <zhao1.liu@intel.com>
Reviewed-by: Eric Farman <farman@linux.ibm.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-Id: <20250324185837.46506-6-philmd@linaro.org>

hw/s390x/s390-virtio-ccw.c

@@ -35,7 +35,7 @@
 #include "hw/s390x/css-bridge.h"
 #include "hw/s390x/ap-bridge.h"
 #include "migration/register.h"
-#include "cpu_models.h"
+#include "target/s390x/cpu_models.h"
 #include "hw/nmi.h"
 #include "hw/qdev-properties.h"
 #include "hw/s390x/tod.h"

target/s390x/cpu.c

@@ -386,6 +386,7 @@ static void s390_cpu_class_init(ObjectClass *oc, void *data)
                                        &scc->parent_phases);
 
     cc->class_by_name = s390_cpu_class_by_name;
+    cc->list_cpus = s390_cpu_list;
     cc->dump_state = s390_cpu_dump_state;
     cc->query_cpu_fast = s390_query_cpu_fast;
     cc->set_pc = s390_cpu_set_pc;

target/s390x/cpu.h

@@ -900,13 +900,6 @@ static inline uint8_t s390_cpu_get_state(S390CPU *cpu)
 }
 
 
-/* cpu_models.c */
-void s390_cpu_list(void);
-#define cpu_list s390_cpu_list
-void s390_set_qemu_cpu_model(uint16_t type, uint8_t gen, uint8_t ec_ga,
-                             const S390FeatInit feat_init);
-
-
 /* helper.c */
 #define CPU_RESOLVING_TYPE TYPE_S390_CPU
 

target/s390x/cpu_models.h

@@ -113,6 +113,9 @@ static inline uint64_t s390_cpuid_from_cpu_model(const S390CPUModel *model)
 }
 S390CPUDef const *s390_find_cpu_def(uint16_t type, uint8_t gen, uint8_t ec_ga,
                                     S390FeatBitmap features);
+void s390_set_qemu_cpu_model(uint16_t type, uint8_t gen, uint8_t ec_ga,
+                             const S390FeatInit feat_init);
+void s390_cpu_list(void);
 
 bool kvm_s390_cpu_models_supported(void);
 bool kvm_s390_get_host_cpu_model(S390CPUModel *model, Error **errp);