linux-kernel - Re: [RFC v5][PATCH 0b/4] intel_txt: Intel(R) Trusted Execution Technology support for Linux

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Message-ID: <4A428E9D.7080509@linux.intel.com>
Date:	Wed, 24 Jun 2009 13:37:49 -0700
From:	Arjan van de Ven <arjan@...ux.intel.com>
To:	Dave Jones <davej@...hat.com>,
	Joseph Cihula <joseph.cihula@...el.com>,
	linux-kernel@...r.kernel.org, mingo@...e.hu, arjan@...ux.intel.com,
	hpa@...or.com, andi@...stfloor.org, chrisw@...s-sol.org,
	jmorris@...ei.org, jbeulich@...ell.com, peterm@...hat.com,
	gang.wei@...el.com, shane.wang@...el.com
Subject: Re: [RFC v5][PATCH 0b/4] intel_txt: Intel(R) Trusted Execution	Technology
 support for Linux - Details

Dave Jones wrote:
> On Mon, Jun 22, 2009 at 05:41:26PM -0700, Joseph Cihula wrote:
>  
>  > The Q35_SINIT_17.BIN file is what Intel TXT refers to as an
>  > Authenticated Code Module.  It is specific to the chipset in the system
>  > and can also be found on the Trusted Boot site.  It is a firmware module
>  > digitally signed by Intel that is used as part of the DRTM process to
>  > verify and configure the system.  
> 
> This seems a little disingenious.  Firmware isn't typically loaded by grub
> into main memory and executed by the host processor.
> 
> so, is this all worthless without the binary blob ?
> 
> "trust us, it's signed by intel" doesn't make me feel more secure.

how's that different from your normal bios ?
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