apic: QOM'ify APIC

Convert 'init' function to QOM's 'realize' for apic, kvm/apic and
xen/xen_apic.
Signed-off-by: Nxiaoqiang zhao <zxq_yx_007@163.com>
Signed-off-by: NAndreas Färber <afaerber@suse.de>

hw/i386/kvm/apic.c

@@ -171,8 +171,10 @@ static const MemoryRegionOps kvm_apic_io_ops = {
     .endianness = DEVICE_NATIVE_ENDIAN,
 };
 
-static void kvm_apic_init(APICCommonState *s)
+static void kvm_apic_realize(DeviceState *dev, Error **errp)
 {
+    APICCommonState *s = APIC_COMMON(dev);
+
     memory_region_init_io(&s->io_memory, NULL, &kvm_apic_io_ops, s, "kvm-apic-msi",
                           APIC_SPACE_SIZE);
 
@@ -185,7 +187,7 @@ static void kvm_apic_class_init(ObjectClass *klass, void *data)
 {
     APICCommonClass *k = APIC_COMMON_CLASS(klass);
 
-    k->init = kvm_apic_init;
+    k->realize = kvm_apic_realize;
     k->set_base = kvm_apic_set_base;
     k->set_tpr = kvm_apic_set_tpr;
     k->get_tpr = kvm_apic_get_tpr;

hw/intc/apic.c

@@ -871,8 +871,10 @@ static const MemoryRegionOps apic_io_ops = {
     .endianness = DEVICE_NATIVE_ENDIAN,
 };
 
-static void apic_init(APICCommonState *s)
+static void apic_realize(DeviceState *dev, Error **errp)
 {
+    APICCommonState *s = APIC_COMMON(dev);
+
     memory_region_init_io(&s->io_memory, OBJECT(s), &apic_io_ops, s, "apic-msi",
                           APIC_SPACE_SIZE);
 
@@ -886,7 +888,7 @@ static void apic_class_init(ObjectClass *klass, void *data)
 {
     APICCommonClass *k = APIC_COMMON_CLASS(klass);
 
-    k->init = apic_init;
+    k->realize = apic_realize;
     k->set_base = apic_set_base;
     k->set_tpr = apic_set_tpr;
     k->get_tpr = apic_get_tpr;

hw/intc/apic_common.c

@@ -298,7 +298,7 @@ static int apic_init_common(ICCDevice *dev)
     s->idx = apic_no++;
 
     info = APIC_COMMON_GET_CLASS(s);
-    info->init(s);
+    info->realize(DEVICE(dev), NULL);
     if (!mmio_registered) {
         ICCBus *b = ICC_BUS(qdev_get_parent_bus(DEVICE(dev)));
         memory_region_add_subregion(b->apic_address_space, 0, &s->io_memory);

hw/xen/xen_apic.c

@@ -36,8 +36,10 @@ static const MemoryRegionOps xen_apic_io_ops = {
     .endianness = DEVICE_NATIVE_ENDIAN,
 };
 
-static void xen_apic_init(APICCommonState *s)
+static void xen_apic_realize(DeviceState *dev, Error **errp)
 {
+    APICCommonState *s = APIC_COMMON(dev);
+
     memory_region_init_io(&s->io_memory, OBJECT(s), &xen_apic_io_ops, s,
                           "xen-apic-msi", APIC_SPACE_SIZE);
 
@@ -72,7 +74,7 @@ static void xen_apic_class_init(ObjectClass *klass, void *data)
 {
     APICCommonClass *k = APIC_COMMON_CLASS(klass);
 
-    k->init = xen_apic_init;
+    k->realize = xen_apic_realize;
     k->set_base = xen_apic_set_base;
     k->set_tpr = xen_apic_set_tpr;
     k->get_tpr = xen_apic_get_tpr;

include/hw/i386/apic_internal.h

@@ -80,7 +80,7 @@ typedef struct APICCommonClass
 {
     ICCDeviceClass parent_class;
 
-    void (*init)(APICCommonState *s);
+    DeviceRealize realize;
     void (*set_base)(APICCommonState *s, uint64_t val);
     void (*set_tpr)(APICCommonState *s, uint8_t val);
     uint8_t (*get_tpr)(APICCommonState *s);