> >> I wonder if it deserves a feature bit.
> > Not sure what that feature bit should govern; if it is not negotiated,
> > the device must assume that the driver considers the reset to be
> > complete right after writing? I'm not sure what the device is supposed
> > to do then.
>
>
> The (hardware) device can refuse the feature negotiation if driver
> doesn't support the feature.
>
> This makes sure the driver is not broken by the device.

Let me send the next patch with a new feature bit added. I guess I can use bit
40 for it (VIRTIO_F_MMIO_RESET_WAIT)?

- vatsa

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