Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755357AbYJHNdo (ORCPT ); Wed, 8 Oct 2008 09:33:44 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1753399AbYJHNdg (ORCPT ); Wed, 8 Oct 2008 09:33:36 -0400 Received: from igw3.br.ibm.com ([32.104.18.26]:39154 "EHLO igw3.br.ibm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753381AbYJHNdf (ORCPT ); Wed, 8 Oct 2008 09:33:35 -0400 Subject: Re: [PATCH 1/4] integrity: TPM internel kernel interface From: Rajiv Andrade To: James Morris Cc: Mimi Zohar , linux-kernel@vger.kernel.org, Andrew Morton , Christoph Hellwig , David Safford , Serge Hallyn , paulmck@linux.vnet.ibm.com In-Reply-To: References: <98178f6ceb8fa8d23153c6e7f94757f406771859.1223401604.git.zohar@linux.vnet.ibm.com> Content-Type: text/plain Date: Wed, 08 Oct 2008 10:33:23 -0300 Message-Id: <1223472803.5742.21.camel@blackbox> Mime-Version: 1.0 X-Mailer: Evolution 2.22.3.1 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 937 Lines: 27 On Wed, 2008-10-08 at 16:00 +1100, James Morris wrote: > On Tue, 7 Oct 2008, Mimi Zohar wrote: > > > Based on discussions on the lkml mailing list, the TPM should be > > built in, but when it is not builtin, the internal TPM kernel > > interface did not protect itself from the removal of the TPM > > driver, while being used. > > If the TPM driver should be built in, why is there an option to make it > modular? > > - James Hi James, It's recommended that the TPM driver should be built-in when using IMA to make sure it's measuring the system as closely as possible to the start of the boot process, but it's not necessarily true when using it to store keys, for example. Rajiv -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/