From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-2.5 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_PASS,USER_AGENT_MUTT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 075DBC4646D for ; Fri, 10 Aug 2018 21:44:55 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id AD2AD21B32 for ; Fri, 10 Aug 2018 21:44:54 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org AD2AD21B32 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=linux.intel.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727121AbeHKAQb (ORCPT ); Fri, 10 Aug 2018 20:16:31 -0400 Received: from mga06.intel.com ([134.134.136.31]:14467 "EHLO mga06.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725754AbeHKAQb (ORCPT ); Fri, 10 Aug 2018 20:16:31 -0400 X-Amp-Result: UNSCANNABLE X-Amp-File-Uploaded: False Received: from fmsmga001.fm.intel.com ([10.253.24.23]) by orsmga104.jf.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 10 Aug 2018 14:44:51 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.53,221,1531810800"; d="scan'208";a="80356178" Received: from jdrachal-mobl1.ger.corp.intel.com (HELO localhost) ([10.252.35.232]) by fmsmga001.fm.intel.com with ESMTP; 10 Aug 2018 14:44:49 -0700 Date: Sat, 11 Aug 2018 00:44:48 +0300 From: Jarkko Sakkinen To: Harlan Lieberman-Berg Cc: Peter Huewe , linux-integrity@vger.kernel.org, linux-kernel@vger.kernel.org, linux-security-module@vger.kernel.org Subject: Re: Fwd: PROBLEM: tpm_cpg can't request region with AMD/Dell fTPM Message-ID: <20180810214433.GA15044@linux.intel.com> References: <20180810165735.GT4692@linux.intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20180810165735.GT4692@linux.intel.com> Organization: Intel Finland Oy - BIC 0357606-4 - Westendinkatu 7, 02160 Espoo User-Agent: Mutt/1.9.4 (2018-02-28) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Fri, Aug 10, 2018 at 07:57:35PM +0300, Jarkko Sakkinen wrote: > On Tue, Aug 07, 2018 at 02:43:10PM -0400, Harlan Lieberman-Berg wrote: > > (Resending as it seems to have been spamfiltered out from the ml; > > sorry Peter, Jarkko for the duplicate) > > I came on Monday from four week leave and have been basically been > catching up with my emails :-) I'll look into this next week with > time. The error message is saying that someone else has reserved the resource (-EBUSY). This looks odd: e78bf000-e7bbefff : ACPI Non-volatile Storage e7bb6000-e7bb9fff : MSFT0101:00 e7bba000-e7bbdfff : MSFT0101:00 Why would be TPM registers mapped inside ACPI NV? I would *guess* that what is happening is that perhaps drivers/acpi/nvs.c maps the address space. This looks like a firmware bug, and such that we cannot do anything about it. I'm having a weird issue with the ACPI tables: $ acpixtract acpidump.txt Intel ACPI Component Architecture ACPI Binary Table Extraction Utility version 20180105 Copyright (c) 2000 - 2018 Intel Corporation DSDT - 31048 bytes written (0x00007948) - dsdt.dat SSDT - 349 bytes written (0x0000015D) - ssdt1.dat SSDT - 18086 bytes written (0x000046A6) - ssdt2.dat SSDT - 5225 bytes written (0x00001469) - ssdt3.dat SSDT - 1082 bytes written (0x0000043A) - ssdt4.dat SSDT - 1017 bytes written (0x000003F9) - ssdt5.dat SSDT - 5369 bytes written (0x000014F9) - ssdt6.dat $ iasl -d *.dat Intel ACPI Component Architecture ASL+ Optimizing Compiler/Disassembler version 20180105 Copyright (c) 2000 - 2018 Intel Corporation Input file dsdt.dat, Length 0x7948 (31048) bytes Table [DSDT] is too long for file - needs: 0x815D, remaining in file: 0x7948 Could not get ACPI tables from dsdt.dat, AE_BAD_HEADER This has not happened to me before. /Jarkko