ppc/xics: remove set_nr_irqs() handler from XICSStateClass

Today, the ICS (Interrupt Controller Source) object is created and
realized by the init and realize routines of the XICS object, but some
of the parameters are only known at the machine level.

These parameters are passed from the sPAPR machine to the ICS object
in a rather convoluted way using property handlers and a class handler
of the XICS object. The number of irqs required to allocate the IRQ
state objects in the ICS realize routine is one of them.

Let's simplify the process by creating the ICS object along with the
XICS object at the machine level and link the ICS into the XICS list
of ICSs at this level also. In the sPAPR machine, there is only a
single ICS but that will change with the PowerNV machine.

Also, QOMify the creation of the objects and get rid of the
superfluous code.

Signed-off-by: Cédric Le Goater <clg@kaod.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>

1 files changed, 1 insertions, 35 deletions

diff --git a/hw/intc/xics_kvm.c b/hw/intc/xics_kvm.c
index 17694eaa87..e5ab00b223 100644
--- a/hw/intc/xics_kvm.c
+++ b/hw/intc/xics_kvm.c
@@ -308,7 +308,7 @@ static void ics_kvm_class_init(ObjectClass *klass, void *data)
     DeviceClass *dc = DEVICE_CLASS(klass);
     ICSStateClass *icsc = ICS_BASE_CLASS(klass);
 
-    dc->realize = ics_kvm_realize;
+    icsc->realize = ics_kvm_realize;
     dc->reset = ics_kvm_reset;
     icsc->pre_save = ics_get_kvm_state;
     icsc->post_load = ics_set_kvm_state;
@@ -358,18 +358,6 @@ static void xics_kvm_cpu_setup(XICSState *xics, PowerPCCPU *cpu)
     ss->cap_irq_xics_enabled = true;
 }
 
-static void xics_kvm_set_nr_irqs(XICSState *xics, uint32_t nr_irqs,
-                                 Error **errp)
-{
-    ICSState *ics = QLIST_FIRST(&xics->ics);
-
-    /* This needs to be deprecated ... */
-    xics->nr_irqs = nr_irqs;
-    if (ics) {
-        ics->nr_irqs = nr_irqs;
-    }
-}
-
 static void xics_kvm_set_nr_servers(XICSState *xics, uint32_t nr_servers,
                                     Error **errp)
 {
@@ -389,7 +377,6 @@ static void xics_kvm_realize(DeviceState *dev, Error **errp)
 {
     KVMXICSState *xicskvm = XICS_SPAPR_KVM(dev);
     XICSState *xics = XICS_COMMON(dev);
-    ICSState *ics;
     int i, rc;
     Error *error = NULL;
     struct kvm_create_device xics_create_device = {
@@ -441,14 +428,6 @@ static void xics_kvm_realize(DeviceState *dev, Error **errp)
 
     xicskvm->kernel_xics_fd = xics_create_device.fd;
 
-    QLIST_FOREACH(ics, &xics->ics, list) {
-        object_property_set_bool(OBJECT(ics), true, "realized", &error);
-        if (error) {
-            error_propagate(errp, error);
-            goto fail;
-        }
-    }
-
     assert(xics->nr_servers);
     for (i = 0; i < xics->nr_servers; i++) {
         object_property_set_bool(OBJECT(&xics->ss[i]), true, "realized",
@@ -472,17 +451,6 @@ fail:
     kvmppc_define_rtas_kernel_token(0, "ibm,int-off");
 }
 
-static void xics_kvm_initfn(Object *obj)
-{
-    XICSState *xics = XICS_COMMON(obj);
-    ICSState *ics;
-
-    ics = ICS_SIMPLE(object_new(TYPE_ICS_KVM));
-    object_property_add_child(obj, "ics", OBJECT(ics), NULL);
-    ics->xics = xics;
-    QLIST_INSERT_HEAD(&xics->ics, ics, list);
-}
-
 static void xics_kvm_class_init(ObjectClass *oc, void *data)
 {
     DeviceClass *dc = DEVICE_CLASS(oc);
@@ -490,7 +458,6 @@ static void xics_kvm_class_init(ObjectClass *oc, void *data)
 
     dc->realize = xics_kvm_realize;
     xsc->cpu_setup = xics_kvm_cpu_setup;
-    xsc->set_nr_irqs = xics_kvm_set_nr_irqs;
     xsc->set_nr_servers = xics_kvm_set_nr_servers;
 }
 
@@ -499,7 +466,6 @@ static const TypeInfo xics_spapr_kvm_info = {
     .parent        = TYPE_XICS_COMMON,
     .instance_size = sizeof(KVMXICSState),
     .class_init    = xics_kvm_class_init,
-    .instance_init = xics_kvm_initfn,
 };
 
 static void xics_kvm_register_types(void)