Andre, Pavel,
On 08/03/2015 11:16 AM, Pavel Fedin wrote:

 Hello!

quoted

Again the case that leaves me uncomfortable is the one where the
userspace does not provide the devid whereas it must (GICv3 ITS case).

 Hypothetical broken userland which does not exist for now ?

Yes but that's the rule to be not confident in *any* userspace, isn't it?

As of now I prefer keeping the flags at uapi level and propagate it
downto the kernel, as long as I don't have any answer for the unset
devid discrimination question. Please apologize for my stubbornness ;-)

Best Regards

Eric

 IMHO the userland should just know, that if it supports ITS, it has to provide devIDs.

Kind regards,
Pavel Fedin
Expert Engineer
Samsung Electronics Research center Russia