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qdev: hotplug: Introduce HotplugHandler.pre_plug() callback

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pre_plug callback is to be called before device.realize() is executed.
This would allow to check/set device's properties from HotplugHandler.

Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Signed-off-by: Bharata B Rao <bharata@linux.vnet.ibm.com>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
This commit is contained in:
Igor Mammedov 2016-05-12 09:18:15 +05:30 • committed by David Gibson
parent 2e11b15dff
commit 41346263c4
3 changed files with 32 additions and 2 deletions
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14
include/hw/hotplug.h
View file

@ -45,7 +45,8 @@ typedef void (*hotplug_fn)(HotplugHandler *plug_handler,
* hardware (un)plug functions.
*
* @parent: Opaque parent interface.
* @plug: plug callback.
* @pre_plug: pre plug callback called at start of device.realize(true)
* @plug: plug callback called at end of device.realize(true).
* @unplug_request: unplug request callback.
* Used as a means to initiate device unplug for devices that
* require asynchronous unplug handling.
@ -58,6 +59,7 @@ typedef struct HotplugHandlerClass {
InterfaceClass parent;
/* <public> */
hotplug_fn pre_plug;
hotplug_fn plug;
hotplug_fn unplug_request;
hotplug_fn unplug;
@ -72,6 +74,16 @@ void hotplug_handler_plug(HotplugHandler *plug_handler,
DeviceState *plugged_dev,
Error **errp);
/**
* hotplug_handler_pre_plug:
*
* Call #HotplugHandlerClass.pre_plug callback of @plug_handler.
*/
void hotplug_handler_pre_plug(HotplugHandler *plug_handler,
DeviceState *plugged_dev,
Error **errp);
/**
* hotplug_handler_unplug_request:
*