linux-kernel - Re: [PATCH 17/18] thunderbolt: Introduce USB only (SL4) security level

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Message-ID: <20180214100950.GM27191@lahna.fi.intel.com>
Date:   Wed, 14 Feb 2018 12:09:50 +0200
From:   Mika Westerberg <mika.westerberg@...ux.intel.com>
To:     Randy Dunlap <rdunlap@...radead.org>
Cc:     linux-kernel@...r.kernel.org,
        Andreas Noever <andreas.noever@...il.com>,
        Michael Jamet <michael.jamet@...el.com>,
        Yehezkel Bernat <yehezkel.bernat@...el.com>,
        Bjorn Helgaas <bhelgaas@...gle.com>,
        Mario.Limonciello@...l.com,
        Radion Mirchevsky <radion.mirchevsky@...el.com>
Subject: Re: [PATCH 17/18] thunderbolt: Introduce USB only (SL4) security
 level

On Tue, Feb 13, 2018 at 04:29:42PM -0800, Randy Dunlap wrote:
> On 02/13/2018 09:00 AM, Mika Westerberg wrote:
> > This new security level works so that it creates one PCIe tunnel to the
> > connected Thunderbolt dock, removing PCIe links downstream of the dock.
> > This leaves only the internal USB controller visible.
> > 
> > Display Port tunnels are created normally.
> > 
> > While there make sure security sysfs attribute returns "unknown" for any
> > future security level.
> > 
> > Signed-off-by: Mika Westerberg <mika.westerberg@...ux.intel.com>
> 
> Hi,
> 
> Also update Documentation/admin-guide/thunderbolt.rst ??

Good point. I'll do that in v2.