Re: [RFC] Restrict the untrusted devices, to bind to only a set of "whitelisted" drivers

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On Mon, Jun 08, 2020 at 11:29:58AM -0700, Jesse Barnes wrote:
> > Now, as to you all getting some sort of "Hardware flag" to determine
> > "inside" vs. "outside" devices, hah, good luck!  It took us a long time
> > to get that for USB, and even then, BIOSes lie and get it wrong all the
> > time.  So you will have to also deal with that in some way, for your
> > userspace policy.
> 
> I think that's inherently platform specific to some extent.  We can do
> it with our coreboot based firmware, but there's no guarantee other
> vendors will adopt the same approach.  But I think at least for the
> ChromeOS ecosystem we can come up with something that'll work, and
> allow us to dtrt in userspace wrt driver binding.

Why not work with the UEFI group to add this to their spec so that it
will work for all future firmware releases, not just your
vendor-specific one?  :)

thanks,

greg k-h



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