[Qemu-ppc] [PATCH 01/25] ppc/xics: introduce an icp_create() helper

[Cédric Le Goater]

The sPAPR and the PowerNV core objects create the interrupt presenter
object of the CPUs in a very similar way. Let's provide a common
routine in which we use the presenter 'type' as a child identifier.

Signed-off-by: Cédric Le Goater <address@hidden>
---
 hw/intc/xics.c          | 22 ++++++++++++++++++++++
 hw/ppc/pnv_core.c       | 10 +---------
 hw/ppc/spapr_cpu_core.c | 13 ++-----------
 include/hw/ppc/xics.h   |  3 +++
 4 files changed, 28 insertions(+), 20 deletions(-)

diff --git a/hw/intc/xics.c b/hw/intc/xics.c
index a1cc0e420c98..e4ccdff8f577 100644
--- a/hw/intc/xics.c
+++ b/hw/intc/xics.c
@@ -384,6 +384,28 @@ static const TypeInfo icp_info = {
     .class_size = sizeof(ICPStateClass),
 };
 
+Object *icp_create(CPUState *cs, const char *type, XICSFabric *xi, Error 
**errp)
+{
+    Object *child = OBJECT(cs);
+    Error *local_err = NULL;
+    Object *obj;
+
+    obj = object_new(type);
+    object_property_add_child(child, type, obj, &error_abort);
+    object_unref(obj);
+    object_property_add_const_link(obj, ICP_PROP_XICS, OBJECT(xi),
+                                   &error_abort);
+    object_property_add_const_link(obj, ICP_PROP_CPU, child, &error_abort);
+    object_property_set_bool(obj, true, "realized", &local_err);
+    if (local_err) {
+        object_unparent(obj);
+        error_propagate(errp, local_err);
+        obj = NULL;
+    }
+
+    return obj;
+}
+
 /*
  * ICS: Source layer
  */
diff --git a/hw/ppc/pnv_core.c b/hw/ppc/pnv_core.c
index 82ff440b3334..a066736846f8 100644
--- a/hw/ppc/pnv_core.c
+++ b/hw/ppc/pnv_core.c
@@ -126,7 +126,6 @@ static void pnv_core_realize_child(Object *child, 
XICSFabric *xi, Error **errp)
     Error *local_err = NULL;
     CPUState *cs = CPU(child);
     PowerPCCPU *cpu = POWERPC_CPU(cs);
-    Object *obj;
 
     object_property_set_bool(child, true, "realized", &local_err);
     if (local_err) {
@@ -134,13 +133,7 @@ static void pnv_core_realize_child(Object *child, 
XICSFabric *xi, Error **errp)
         return;
     }
 
-    obj = object_new(TYPE_PNV_ICP);
-    object_property_add_child(child, "icp", obj, NULL);
-    object_unref(obj);
-    object_property_add_const_link(obj, ICP_PROP_XICS, OBJECT(xi),
-                                   &error_abort);
-    object_property_add_const_link(obj, ICP_PROP_CPU, child, &error_abort);
-    object_property_set_bool(obj, true, "realized", &local_err);
+    icp_create(cs, TYPE_PNV_ICP, xi, &local_err);
     if (local_err) {
         error_propagate(errp, local_err);
         return;
@@ -148,7 +141,6 @@ static void pnv_core_realize_child(Object *child, 
XICSFabric *xi, Error **errp)
 
     powernv_cpu_init(cpu, &local_err);
     if (local_err) {
-        object_unparent(obj);
         error_propagate(errp, local_err);
         return;
     }
diff --git a/hw/ppc/spapr_cpu_core.c b/hw/ppc/spapr_cpu_core.c
index 4ba8563d49e4..f8a520a2fa2d 100644
--- a/hw/ppc/spapr_cpu_core.c
+++ b/hw/ppc/spapr_cpu_core.c
@@ -111,7 +111,6 @@ static void spapr_cpu_core_realize_child(Object *child,
     Error *local_err = NULL;
     CPUState *cs = CPU(child);
     PowerPCCPU *cpu = POWERPC_CPU(cs);
-    Object *obj;
 
     object_property_set_bool(child, true, "realized", &local_err);
     if (local_err) {
@@ -123,21 +122,13 @@ static void spapr_cpu_core_realize_child(Object *child,
         goto error;
     }
 
-    obj = object_new(spapr->icp_type);
-    object_property_add_child(child, "icp", obj, &error_abort);
-    object_unref(obj);
-    object_property_add_const_link(obj, ICP_PROP_XICS, OBJECT(spapr),
-                                   &error_abort);
-    object_property_add_const_link(obj, ICP_PROP_CPU, child, &error_abort);
-    object_property_set_bool(obj, true, "realized", &local_err);
+    icp_create(cs, spapr->icp_type, XICS_FABRIC(spapr), &local_err);
     if (local_err) {
-        goto free_icp;
+        goto error;
     }
 
     return;
 
-free_icp:
-    object_unparent(obj);
 error:
     error_propagate(errp, local_err);
 }
diff --git a/include/hw/ppc/xics.h b/include/hw/ppc/xics.h
index 2df99be111ce..126b47dec38b 100644
--- a/include/hw/ppc/xics.h
+++ b/include/hw/ppc/xics.h
@@ -212,4 +212,7 @@ typedef struct sPAPRMachineState sPAPRMachineState;
 int xics_kvm_init(sPAPRMachineState *spapr, Error **errp);
 void xics_spapr_init(sPAPRMachineState *spapr);
 
+Object *icp_create(CPUState *cs, const char *type, XICSFabric *xi,
+                   Error **errp);
+
 #endif /* XICS_H */
-- 
2.13.6