On Mon, Jan 13, Boris Ostrovsky wrote: > On 01/13/2014 04:30 AM, Olaf Hering wrote: > >>Similarly, if xenbug_gather("discard-secure") fails, I think the code will > >>assume that secure discard has not been requested. I don't know what > >>security implications this will have but it sounds bad to me. > >There are no security implications, if the backend does not advertise it > >then its not present. > > Right. But my questions was what if the backend does advertise it and wants > the frontent to use it but xenbus_gather() in the frontend fails. Do we want > to silently continue without discard-secure? Is this safe?
The frontend can not know that the backend advertised discard-secure because the frontend just failed to read the property which indicates discard-secure should be enabled. Olaf -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/