target-i386: Introduce ICC bus/device/bridge

Provides a hotpluggable bus for APIC and CPU.

* icc-bridge will serve as a parent for icc-bus and provide
  mmio mapping services to child icc-devices.
* icc-device will replace SysBusDevice as a parent of APIC
  and IOAPIC devices.

Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Signed-off-by: Andreas Färber <afaerber@suse.de>

include/hw/cpu/icc_bus.h

@@ -0,0 +1,79 @@
+/* icc_bus.h
+ * emulate x86 ICC (Interrupt Controller Communications) bus
+ *
+ * Copyright (c) 2013 Red Hat, Inc
+ *
+ * Authors:
+ *     Igor Mammedov <imammedo@redhat.com>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, see <http://www.gnu.org/licenses/>
+ */
+#ifndef ICC_BUS_H
+#define ICC_BUS_H
+
+#include "hw/qdev-core.h"
+
+#define TYPE_ICC_BUS "icc-bus"
+
+#ifndef CONFIG_USER_ONLY
+
+/**
+ * ICCBus:
+ *
+ * ICC bus
+ */
+typedef struct ICCBus {
+    /*< private >*/
+    BusState parent_obj;
+    /*< public >*/
+} ICCBus;
+
+#define ICC_BUS(obj) OBJECT_CHECK(ICCBus, (obj), TYPE_ICC_BUS)
+
+/**
+ * ICCDevice:
+ *
+ * ICC device
+ */
+typedef struct ICCDevice {
+    /*< private >*/
+    DeviceState qdev;
+    /*< public >*/
+} ICCDevice;
+
+/**
+ * ICCDeviceClass:
+ * @init: Initialization callback for derived classes.
+ *
+ * ICC device class
+ */
+typedef struct ICCDeviceClass {
+    /*< private >*/
+    DeviceClass parent_class;
+    /*< public >*/
+
+    int (*init)(ICCDevice *dev); /* TODO replace with QOM realize */
+} ICCDeviceClass;
+
+#define TYPE_ICC_DEVICE "icc-device"
+#define ICC_DEVICE(obj) OBJECT_CHECK(ICCDevice, (obj), TYPE_ICC_DEVICE)
+#define ICC_DEVICE_CLASS(klass) \
+     OBJECT_CLASS_CHECK(ICCDeviceClass, (klass), TYPE_ICC_DEVICE)
+#define ICC_DEVICE_GET_CLASS(obj) \
+     OBJECT_GET_CLASS(ICCDeviceClass, (obj), TYPE_ICC_DEVICE)
+
+#define TYPE_ICC_BRIDGE "icc-bridge"
+
+#endif /* CONFIG_USER_ONLY */
+#endif