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