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qdev: Add a get_dev_path() function to BusInfo 

This function is meant to provide a stable device path for buses
which are able to implement it.  If a bus has a globally unique
addresses scheme, one address level may be sufficient to provide
a path.  Other buses may need to recursively traverse up the
qdev tree.

Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
This commit is contained in:
Alex Williamson 2010-06-25 11:08:52 -06:00 committed by Anthony Liguori
parent 44ae28f315
commit 6772b9364a
1 changed files with 3 additions and 0 deletions
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3
hw/qdev.h
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@ -49,10 +49,13 @@ struct DeviceState {
};
typedef void (*bus_dev_printfn)(Monitor *mon, DeviceState *dev, int indent);
typedef char *(*bus_get_dev_path)(DeviceState *dev);
struct BusInfo {
const char *name;
size_t size;
bus_dev_printfn print_dev;
bus_get_dev_path get_dev_path;
Property *props;
};