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qdev: trigger reset from a given device

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Introduce a helper function which triggers reset from a given device.
Will be used by pci bus emulation.

Signed-off-by: Isaku Yamahata <yamahata@valinux.co.jp>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
This commit is contained in:
Isaku Yamahata 2010-11-19 18:56:01 +09:00 committed by Michael S. Tsirkin
parent b4694b7ce8
commit 5af0a04bea
2 changed files with 6 additions and 0 deletions
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5
hw/qdev.c
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@ -322,6 +322,11 @@ static int qbus_reset_one(BusState *bus, void *opaque)
return 0; return 0;
} }
void qdev_reset_all(DeviceState *dev)
{
qdev_walk_children(dev, qdev_reset_one, qbus_reset_one, NULL);
}
void qbus_reset_all(BusState *bus) void qbus_reset_all(BusState *bus)
{ {
qbus_walk_children(bus, qdev_reset_one, qbus_reset_one, NULL); qbus_walk_children(bus, qdev_reset_one, qbus_reset_one, NULL);

1
hw/qdev.h
View File

@ -189,6 +189,7 @@ int qbus_walk_children(BusState *bus, qdev_walkerfn *devfn,
qbus_walkerfn *busfn, void *opaque); qbus_walkerfn *busfn, void *opaque);
int qdev_walk_children(DeviceState *dev, qdev_walkerfn *devfn, int qdev_walk_children(DeviceState *dev, qdev_walkerfn *devfn,
qbus_walkerfn *busfn, void *opaque); qbus_walkerfn *busfn, void *opaque);
void qdev_reset_all(DeviceState *dev);
void qbus_reset_all(BusState *bus); void qbus_reset_all(BusState *bus);
void qbus_free(BusState *bus); void qbus_free(BusState *bus);