mirror of https://github.com/proxmox/mirror_qemu
qdev: HotplugHandler: Provide unplug callback
It is to be called for actual device removal and will allow to separate request and removal handling phases of x86-CPU devices and also it's a handler to be called for synchronously removable devices. Signed-off-by: Igor Mammedov <imammedo@redhat.com> Reviewed-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Andreas Färber <afaerber@suse.de>master
parent
14d5a28fb6
commit
181a2c6323
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@ -34,6 +34,17 @@ void hotplug_handler_unplug_request(HotplugHandler *plug_handler,
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}
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}
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}
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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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{
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HotplugHandlerClass *hdc = HOTPLUG_HANDLER_GET_CLASS(plug_handler);
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if (hdc->unplug) {
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hdc->unplug(plug_handler, plugged_dev, errp);
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}
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}
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static const TypeInfo hotplug_handler_info = {
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static const TypeInfo hotplug_handler_info = {
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.name = TYPE_HOTPLUG_HANDLER,
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.name = TYPE_HOTPLUG_HANDLER,
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.parent = TYPE_INTERFACE,
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.parent = TYPE_INTERFACE,
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@ -227,8 +227,17 @@ void qdev_unplug(DeviceState *dev, Error **errp)
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qdev_hot_removed = true;
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qdev_hot_removed = true;
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if (dev->parent_bus && dev->parent_bus->hotplug_handler) {
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if (dev->parent_bus && dev->parent_bus->hotplug_handler) {
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hotplug_handler_unplug_request(dev->parent_bus->hotplug_handler,
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HotplugHandlerClass *hdc;
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dev, errp);
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/* If device supports async unplug just request it to be done,
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* otherwise just remove it synchronously */
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hdc = HOTPLUG_HANDLER_GET_CLASS(dev->parent_bus->hotplug_handler);
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if (hdc->unplug_request) {
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hotplug_handler_unplug_request(dev->parent_bus->hotplug_handler,
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dev, errp);
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} else {
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hotplug_handler_unplug(dev->parent_bus->hotplug_handler, dev, errp);
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}
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} else {
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} else {
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assert(dc->unplug != NULL);
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assert(dc->unplug != NULL);
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if (dc->unplug(dev) < 0) { /* legacy handler */
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if (dc->unplug(dev) < 0) { /* legacy handler */
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@ -50,6 +50,9 @@ typedef void (*hotplug_fn)(HotplugHandler *plug_handler,
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* @unplug_request: unplug request callback.
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* @unplug_request: unplug request callback.
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* Used as a means to initiate device unplug for devices that
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* Used as a means to initiate device unplug for devices that
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* require asynchronous unplug handling.
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* require asynchronous unplug handling.
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* @unplug: unplug callback.
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* Used for device removal with devices that implement
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* asynchronous and synchronous (suprise) removal.
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*/
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*/
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typedef struct HotplugHandlerClass {
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typedef struct HotplugHandlerClass {
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/* <private> */
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/* <private> */
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@ -58,6 +61,7 @@ typedef struct HotplugHandlerClass {
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/* <public> */
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/* <public> */
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hotplug_fn plug;
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hotplug_fn plug;
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hotplug_fn unplug_request;
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hotplug_fn unplug_request;
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hotplug_fn unplug;
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} HotplugHandlerClass;
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} HotplugHandlerClass;
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/**
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/**
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@ -77,4 +81,12 @@ void hotplug_handler_plug(HotplugHandler *plug_handler,
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void hotplug_handler_unplug_request(HotplugHandler *plug_handler,
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void hotplug_handler_unplug_request(HotplugHandler *plug_handler,
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DeviceState *plugged_dev,
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DeviceState *plugged_dev,
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Error **errp);
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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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* Calls #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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#endif
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