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qdev: introduce reset call back for qbus level

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

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 18:56:00 +09:00 • committed by Michael S. Tsirkin
parent ec990eb622
commit b4694b7ce8
2 changed files with 11 additions and 1 deletions
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10
hw/qdev.c
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@ -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 */