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qdev: support to get a device firmware path directly

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commit 6b1566c (qdev: Introduce FWPathProvider interface) did a
good job for supproting to get firmware path on some different
architectures.

Moreover further more, we can use the interface to get firmware
path name for a device which isn't attached a specific bus,
such as virtio-bus, scsi-bus etc.

When the device (such as vhost-scsi) realize the TYPE_FW_PATH_PROVIDER
interface, we should introduce a new function to get the correct firmware
path name for it.

Signed-off-by: Gonglei <arei.gonglei@huawei.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Gonglei 2015-01-29 15:08:51 +08:00 • committed by Paolo Bonzini
parent edecf5eced
commit 0be63901d2
3 changed files with 25 additions and 14 deletions
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7
hw/core/qdev.c
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@ -818,6 +818,13 @@ static char *qdev_get_fw_dev_path_from_handler(BusState *bus, DeviceState *dev)
return d;
}
char *qdev_get_own_fw_dev_path_from_handler(BusState *bus, DeviceState *dev)
{
Object *obj = OBJECT(dev);
return fw_path_provider_try_get_dev_path(obj, bus, dev);
}
static int qdev_get_fw_dev_path_helper(DeviceState *dev, char *p, int size)
{
int l = 0;