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

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Date:   Tue, 30 Jun 2020 23:46:09 +0200
From:   Pavel Machek <pavel@...x.de>
To:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc:     Rajat Jain <rajatja@...gle.com>,
        Jesse Barnes <jsbarnes@...gle.com>,
        Rajat Jain <rajatxjain@...il.com>,
        Bjorn Helgaas <helgaas@...nel.org>,
        "Raj, Ashok" <ashok.raj@...el.com>,
        "Krishnakumar, Lalithambika" <lalithambika.krishnakumar@...el.com>,
        Bjorn Helgaas <bhelgaas@...gle.com>,
        linux-pci <linux-pci@...r.kernel.org>,
        Mika Westerberg <mika.westerberg@...ux.intel.com>,
        Jean-Philippe Brucker <jean-philippe@...aro.org>,
        Prashant Malani <pmalani@...gle.com>,
        Benson Leung <bleung@...gle.com>,
        Todd Broch <tbroch@...gle.com>,
        Alex Levin <levinale@...gle.com>,
        Mattias Nissler <mnissler@...gle.com>,
        Zubin Mithra <zsm@...gle.com>,
        Bernie Keany <bernie.keany@...el.com>,
        Aaron Durbin <adurbin@...gle.com>,
        Diego Rivas <diegorivas@...gle.com>,
        Duncan Laurie <dlaurie@...gle.com>,
        Furquan Shaikh <furquan@...gle.com>,
        Christian Kellner <christian@...lner.me>,
        Alex Williamson <alex.williamson@...hat.com>,
        Joerg Roedel <joro@...tes.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: [RFC] Restrict the untrusted devices, to bind to only a set of
 "whitelisted" drivers

Hi!

> > > 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.
> > 
> > Agree, we can work with our firmware teams to get that right, and then
> > expose it from kernel to userspace to help it implement the policy we
> > want.
> 
> This is already in the spec for USB, I suggest working to get this added
> to the other bus type specs that you care about as well (UEFI, PCI,
> etc.)

Note that "you can only use authorized SSD and authorized WIFI card in
this notebook" was done before, but is considered antisocial.

Best regards,
									Pavel
-- 
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html

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