Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S934248AbdDGUNx (ORCPT ); Fri, 7 Apr 2017 16:13:53 -0400 Received: from mga02.intel.com ([134.134.136.20]:45000 "EHLO mga02.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755507AbdDGUNr (ORCPT ); Fri, 7 Apr 2017 16:13:47 -0400 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.37,167,1488873600"; d="scan'208";a="1132715660" Date: Fri, 7 Apr 2017 23:13:47 +0300 From: Jarkko Sakkinen To: Jason Gunthorpe Cc: Paul Menzel , "Maciej S. Szmigiero" , tpmdd-devel@lists.sourceforge.net, linux-kernel@vger.kernel.org, GNUtoo@no-log.org Subject: Re: [tpmdd-devel] Regression between Linux 3.16 and 4.8/4.9 on Lenovo X60 with coreboot Message-ID: <20170407201347.2qcyrdzgg2yikoen@intel.com> References: <20170406165557.GD7657@obsidianresearch.com> <3d62bd7d4addc020c2f8e3c2edf3280e@molgen.mpg.de> <20170406191013.GA25011@obsidianresearch.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20170406191013.GA25011@obsidianresearch.com> Organization: Intel Finland Oy - BIC 0357606-4 - Westendinkatu 7, 02160 Espoo User-Agent: Mutt/1.6.2-neo (2016-08-21) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 951 Lines: 24 On Thu, Apr 06, 2017 at 01:10:13PM -0600, Jason Gunthorpe wrote: > On Thu, Apr 06, 2017 at 08:26:22PM +0200, Paul Menzel wrote: > > >We added direct ACPI binding to the driver in addition to PNP, so if > > >you have an ACPI table it goes down that path and does some additional > > >validation of what is in the TPM. The BIOS must provide a > > >acpi_dev_resource_memory and a ACPI_SIG_TPM2 for the ACPI entry at a > > >minimum. > > > > Is it correct, that this is added in/for 4.11, so just recently? Testing > > with Linux 4.10.8, everything is detected just fine. > > No, it is quite a bit older.. And it should only go for TPM2, which I > don't think you have?? > > Maybe Jarkko has a guess, but sure sounds like something is recently > broken in 4.11 > > Jason I'll come back to this. I have to re-read the whole mail thread to get back into the context. Lots of multitasking because of release and so forth. Sorry for the latency! /Jarkko