Commit b4694b7c authored by Isaku Yamahata's avatar Isaku Yamahata Committed by Michael S. Tsirkin
Browse files

qdev: introduce reset call back for qbus level 



and make it called via qbus_reset_all().
The qbus reset callback will be used by pci bus reset.

Signed-off-by: default avatarIsaku Yamahata <yamahata@valinux.co.jp>
Signed-off-by: default avatarAnthony Liguori <aliguori@us.ibm.com>
Signed-off-by: default avatarMichael S. Tsirkin <mst@redhat.com>
parent ec990eb6

hw/qdev.c

+9 −1
Original line number Diff line number Diff line
@@ -314,9 +314,17 @@ BusState *sysbus_get_default(void) 
    return main_system_bus;

}



static int qbus_reset_one(BusState *bus, void *opaque)

{

    if (bus->info->reset) {

        return bus->info->reset(bus);

    }

    return 0;

}



void qbus_reset_all(BusState *bus)

{

    qbus_walk_children(bus, qdev_reset_one, NULL, NULL);

    qbus_walk_children(bus, qdev_reset_one, qbus_reset_one, NULL);

}



/* can be used as ->unplug() callback for the simple cases */

hw/qdev.h

+2 −0
Original line number Diff line number Diff line
@@ -49,12 +49,14 @@ struct DeviceState { 


typedef void (*bus_dev_printfn)(Monitor *mon, DeviceState *dev, int indent);

typedef char *(*bus_get_dev_path)(DeviceState *dev);

typedef int (qbus_resetfn)(BusState *bus);



struct BusInfo {

    const char *name;

    size_t size;

    bus_dev_printfn print_dev;

    bus_get_dev_path get_dev_path;

    qbus_resetfn *reset;

    Property *props;

};