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From: Pavel Machek <pavel@ucw.cz>
To: rms <rms@gnu.org>
Cc: Theodore Tso <tytso@mit.edu>,
	joseph.cihula@intel.com, jmorris@namei.org,
	linux-kernel@vger.kernel.org, mingo@elte.hu,
	arjan@linux.intel.com, hpa@zytor.com, andi@firstfloor.org,
	chrisw@sous-sol.org, jbeulich@novell.com, peterm@redhat.com,
	gang.wei@intel.com, shane.wang@intel.com, gnu@toad.com
Subject: Re: [RFC v3][PATCH 2/2] intel_txt: Intel(R) TXT and tboot kernel support
Date: Fri, 29 May 2009 11:47:54 +0200	[thread overview]
Message-ID: <20090529094753.GA21928@elf.ucw.cz> (raw)
In-Reply-To: <E1M9Mig-0003Q4-S1@fencepost.gnu.org>

On Wed 2009-05-27 13:15:14, rms wrote:
> This scheme must be very different from anything I've heard of before.
> Can you tell me where to find a description?
> I want to study whether it really avoids being affected by GPLv3,
> and how we can fight against it.

Some description is here:
http://en.wikipedia.org/wiki/Trusted_Execution_Technology .

And yes, I believe it avoids GPLv3: TXT allows user (I _hope_ it is
root-only) to boot tamper-free sandbox. As long as Windows (or
something) runs in the sandbox, I believe even GPLv3 would allow that.

OTOH... I do not think mainline kernel should support this. It does
not add anything to the user's security, and allows all kinds of nasty
DRMs.
									Pavel
-- 
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html

  parent reply	other threads:[~2009-05-29  9:48 UTC|newest]

Thread overview: 22+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2009-05-08  4:49 [RFC v3][PATCH 2/2] intel_txt: Intel(R) TXT and tboot kernel support Joseph Cihula
2009-05-08  6:53 ` Andrew Morton
2009-05-29  1:02   ` Cihula, Joseph
2009-05-08  9:57 ` Ingo Molnar
2009-05-12  5:26   ` Cihula, Joseph
2009-05-12  9:45     ` Ingo Molnar
2009-05-12  9:55       ` Andi Kleen
2009-05-12 21:01 ` Theodore Tso
2009-05-14 15:52   ` Heinz Diehl
2009-05-15  0:17   ` James Morris
2009-05-15  1:45     ` Cihula, Joseph
2009-05-15  1:51       ` Joe Perches
2009-05-15  2:49         ` Cihula, Joseph
2009-05-28  1:12           ` James Morris
2009-05-15 12:07       ` Theodore Tso
2009-05-15 12:26         ` Theodore Tso
2009-05-24 19:42         ` Pavel Machek
2009-05-24 19:42       ` Pavel Machek
     [not found]         ` <E1M8kJQ-0000W3-TE@fencepost.gnu.org>
2009-05-26  2:31           ` Theodore Tso
     [not found]             ` <E1M9Mig-0003Q4-S1@fencepost.gnu.org>
2009-05-29  9:47               ` Pavel Machek [this message]
2009-05-19 20:30     ` Pavel Machek
2009-05-22 16:59       ` H. Peter Anvin

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