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authorIgor Mammedov <imammedo@redhat.com>2016-05-12 09:18:15 +0530
committerDavid Gibson <david@gibson.dropbear.id.au>2016-06-17 16:33:48 +1000
commit41346263c4039fd2edca61c031c9396577693036 (patch)
treee20fa96388bb62c967490408973ccb7e58e51b21 /include/hw
parent2e11b15dff0bed8f29e844940f127e6e89cd766c (diff)
downloadqemu-41346263c4039fd2edca61c031c9396577693036.tar.gz
qdev: hotplug: Introduce HotplugHandler.pre_plug() callback
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>
Diffstat (limited to 'include/hw')
-rw-r--r--include/hw/hotplug.h14
1 files changed, 13 insertions, 1 deletions
diff --git a/include/hw/hotplug.h b/include/hw/hotplug.h
index da1d0e4ab8..c0db869f85 100644
--- a/include/hw/hotplug.h
+++ b/include/hw/hotplug.h
@@ -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;
@@ -73,6 +75,16 @@ void hotplug_handler_plug(HotplugHandler *plug_handler,
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:
*
* Calls #HotplugHandlerClass.unplug_request callback of @plug_handler.