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qdev: Document qdev_unrealize() 

Add a doc comment for qdev_unrealize(), to go with the new
documentation for the realize part of the qdev lifecycle.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20200711142425.16283-3-peter.maydell@linaro.org
This commit is contained in:
Peter Maydell 2020-07-11 15:24:24 +01:00
parent b51238e251
commit 46ea1be1ee
1 changed files with 19 additions and 0 deletions
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19
include/hw/qdev-core.h
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@ -381,6 +381,25 @@ bool qdev_realize(DeviceState *dev, BusState *bus, Error **errp);
* would be incorrect. For that use case you want qdev_realize().
*/
bool qdev_realize_and_unref(DeviceState *dev, BusState *bus, Error **errp);
/**
* qdev_unrealize: Unrealize a device
* @dev: device to unrealize
*
* This function will "unrealize" a device, which is the first phase
* of correctly destroying a device that has been realized. It will:
*
* - unrealize any child buses by calling qbus_unrealize()
* (this will recursively unrealize any devices on those buses)
* - call the the unrealize method of @dev
*
* The device can then be freed by causing its reference count to go
* to zero.
*
* Warning: most devices in QEMU do not expect to be unrealized. Only
* devices which are hot-unpluggable should be unrealized (as part of
* the unplugging process); all other devices are expected to last for
* the life of the simulation and should not be unrealized and freed.
*/
void qdev_unrealize(DeviceState *dev);
void qdev_set_legacy_instance_id(DeviceState *dev, int alias_id,
int required_for_version);