linux-kernel - Re: [RFC v6][PATCH 0b/4] intel_txt: Intel(R) Trusted Execution Technology support for Linux

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Message-ID: <4A82EE1E.5080001@linux.intel.com>
Date:	Wed, 12 Aug 2009 09:30:22 -0700
From:	Arjan van de Ven <arjan@...ux.intel.com>
To:	"H. Peter Anvin" <hpa@...or.com>
CC:	"Wang, Shane" <shane.wang@...el.com>, Ingo Molnar <mingo@...e.hu>,
	"Cihula, Joseph" <joseph.cihula@...el.com>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"andi@...stfloor.org" <andi@...stfloor.org>,
	"chrisw@...s-sol.org" <chrisw@...s-sol.org>,
	"jmorris@...ei.org" <jmorris@...ei.org>,
	"jbeulich@...ell.com" <jbeulich@...ell.com>,
	"peterm@...hat.com" <peterm@...hat.com>,
	"Wei, Gang" <gang.wei@...el.com>
Subject: Re: [RFC v6][PATCH 0b/4] intel_txt: Intel(R) Trusted Execution	Technology
 support for Linux - Details

H. Peter Anvin wrote:
> On 08/12/2009 08:42 AM, Wang, Shane wrote:
>> oh, S3 support by TXT is one of TXT support. We have code to secure S3 sleep and resume.
>> Without S3 support, TXT code is incomplete.
>>
> 
> That doesn't make any sense.
> 
> The question is: if the user doesn't want S3, do they still need to
> enable S3 in order to be able to use TXT?  Otherwise, this code needs to
> be properly conditionalized.
> 

it's the other way around
if you have S3 support, you also need the TXT S3 piece.
the S3 piece of TXT is irrelevant if you cannot do S3.
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