9f117d4184
Provide a generic hotplug interface for hotplug handlers. Intended for replacing hotplug mechanism used by PCI/PCIE/SHPC code and will be used for memory hotplug. Signed-off-by: Igor Mammedov <imammedo@redhat.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
79 lines
2.0 KiB
C
79 lines
2.0 KiB
C
/*
|
|
* Hotplug handler interface.
|
|
*
|
|
* Copyright (c) 2014 Red Hat Inc.
|
|
*
|
|
* Authors:
|
|
* Igor Mammedov <imammedo@redhat.com>,
|
|
*
|
|
* This work is licensed under the terms of the GNU GPL, version 2 or later.
|
|
* See the COPYING file in the top-level directory.
|
|
*/
|
|
#ifndef HOTPLUG_H
|
|
#define HOTPLUG_H
|
|
|
|
#include "qom/object.h"
|
|
#include "qemu/typedefs.h"
|
|
|
|
#define TYPE_HOTPLUG_HANDLER "hotplug-handler"
|
|
|
|
#define HOTPLUG_HANDLER_CLASS(klass) \
|
|
OBJECT_CLASS_CHECK(HotplugHandlerClass, (klass), TYPE_HOTPLUG_HANDLER)
|
|
#define HOTPLUG_HANDLER_GET_CLASS(obj) \
|
|
OBJECT_GET_CLASS(HotplugHandlerClass, (obj), TYPE_HOTPLUG_HANDLER)
|
|
#define HOTPLUG_HANDLER(obj) \
|
|
INTERFACE_CHECK(HotplugHandler, (obj), TYPE_HOTPLUG_HANDLER)
|
|
|
|
|
|
typedef struct HotplugHandler {
|
|
/* <private> */
|
|
Object Parent;
|
|
} HotplugHandler;
|
|
|
|
/**
|
|
* hotplug_fn:
|
|
* @plug_handler: a device performing plug/uplug action
|
|
* @plugged_dev: a device that has been (un)plugged
|
|
* @errp: returns an error if this function fails
|
|
*/
|
|
typedef void (*hotplug_fn)(HotplugHandler *plug_handler,
|
|
DeviceState *plugged_dev, Error **errp);
|
|
|
|
/**
|
|
* HotplugDeviceClass:
|
|
*
|
|
* Interface to be implemented by a device performing
|
|
* hardware (un)plug functions.
|
|
*
|
|
* @parent: Opaque parent interface.
|
|
* @plug: plug callback.
|
|
* @unplug: unplug callback.
|
|
*/
|
|
typedef struct HotplugHandlerClass {
|
|
/* <private> */
|
|
InterfaceClass parent;
|
|
|
|
/* <public> */
|
|
hotplug_fn plug;
|
|
hotplug_fn unplug;
|
|
} HotplugHandlerClass;
|
|
|
|
/**
|
|
* hotplug_handler_plug:
|
|
*
|
|
* Call #HotplugHandlerClass.plug callback of @plug_handler.
|
|
*/
|
|
void hotplug_handler_plug(HotplugHandler *plug_handler,
|
|
DeviceState *plugged_dev,
|
|
Error **errp);
|
|
|
|
/**
|
|
* hotplug_handler_unplug:
|
|
*
|
|
* Call #HotplugHandlerClass.unplug callback of @plug_handler.
|
|
*/
|
|
void hotplug_handler_unplug(HotplugHandler *plug_handler,
|
|
DeviceState *plugged_dev,
|
|
Error **errp);
|
|
#endif
|