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qdev: add qbus_reset_all 

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
This commit is contained in:
Paolo Bonzini 2013-01-10 15:49:07 +01:00 committed by Anthony Liguori
parent 8c43a6f05d
commit d0508c3664
2 changed files with 18 additions and 1 deletions
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12
hw/qdev-core.h
View File

@ -182,6 +182,18 @@ int qbus_walk_children(BusState *bus, qdev_walkerfn *devfn,
int qdev_walk_children(DeviceState *dev, qdev_walkerfn *devfn,
qbus_walkerfn *busfn, void *opaque);
void qdev_reset_all(DeviceState *dev);
/**
* @qbus_reset_all:
* @bus: Bus to be reset.
*
* Reset @bus and perform a bus-level ("hard") reset of all devices connected
* to it, including recursive processing of all buses below @bus itself. A
* hard reset means that qbus_reset_all will reset all state of the device.
* For PCI devices, for example, this will include the base address registers
* or configuration space.
*/
void qbus_reset_all(BusState *bus);
void qbus_reset_all_fn(void *opaque);
void qbus_free(BusState *bus);

7
hw/qdev.c
View File

@ -228,10 +228,15 @@ void qdev_reset_all(DeviceState *dev)
qdev_walk_children(dev, qdev_reset_one, qbus_reset_one, NULL);
}
void qbus_reset_all(BusState *bus)
{
qbus_walk_children(bus, qdev_reset_one, qbus_reset_one, NULL);
}
void qbus_reset_all_fn(void *opaque)
{
BusState *bus = opaque;
qbus_walk_children(bus, qdev_reset_one, qbus_reset_one, NULL);
qbus_reset_all(bus);
}
/* can be used as ->unplug() callback for the simple cases */