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=unavailable 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 92602C43444 for ; Thu, 3 Jan 2019 13:41:55 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 6122421479 for ; Thu, 3 Jan 2019 13:41:55 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1730798AbfACNly (ORCPT ); Thu, 3 Jan 2019 08:41:54 -0500 Received: from mga04.intel.com ([192.55.52.120]:24787 "EHLO mga04.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728233AbfACNlx (ORCPT ); Thu, 3 Jan 2019 08:41:53 -0500 X-Amp-Result: UNKNOWN X-Amp-Original-Verdict: FILE UNKNOWN X-Amp-File-Uploaded: False Received: from orsmga005.jf.intel.com ([10.7.209.41]) by fmsmga104.fm.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 03 Jan 2019 05:41:53 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.56,435,1539673200"; d="scan'208";a="288553679" Received: from tmuluk-mobl4.ger.corp.intel.com (HELO localhost) ([10.249.254.238]) by orsmga005.jf.intel.com with ESMTP; 03 Jan 2019 05:41:48 -0800 Date: Thu, 3 Jan 2019 15:41:47 +0200 From: Jarkko Sakkinen To: Michael =?iso-8859-1?Q?Niew=F6hner?= Cc: Mimi Zohar , James Bottomley , peterhuewe@gmx.de, jgg@ziepe.ca, arnd@arndb.de, linux-integrity@vger.kernel.org, linux-kernel , Nayna Jain , Ken Goldman Subject: Re: tpm_tis TPM2.0 not detected on cold boot Message-ID: <20190103134147.GE10491@linux.intel.com> References: MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: Organization: Intel Finland Oy - BIC 0357606-4 - Westendinkatu 7, 02160 Espoo User-Agent: Mutt/1.10.1 (2018-07-13) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Sun, Dec 16, 2018 at 02:32:38PM +0100, Michael Niewöhner wrote: > dmesg cold boot with tpm_tis.interrupts=0 tpm_tis.force=1: > ---------------------------------------------------------- > > dmesg | grep -i tpm > [ 0.000000] Command line: initrd=\initrd-test console=ttyS0,115200n8 > break=premount tpm_tis.interrupts=0 tpm_tis.force=1 > [ 0.000000] efi: ACPI > 2.0=0x9e07e000 ACPI=0x9e07e000 SMBIOS=0x9ebeb000 SMBIOS > 3.0=0x9ebea000 MEMATTR=0x98fb2018 TPMEventLog=0x972bb018 > [ 0.003531] ACPI: TPM2 0x000000009E0B7F70 000034 (v03 LENOVO TC- > S06 00001260 AMI 00000000) > [ 0.162005] Kernel command line: initrd=\initrd-test console=ttyS0,115200n8 > break=premount tpm_tis.interrupts=0 tpm_tis.force=1 > [ 3.616806] tpm_tis MSFT0101:00: 2.0 TPM (device-id 0xFE, rev-id 2) > [ 3.683117] tpm_tis tpm_tis: can't request region for resource [mem > 0xfed40000-0xfed44fff] > [ 3.691378] tpm_tis: probe of tpm_tis failed with error -16 > [ 4.572539] ima: Error Communicating to TPM chip Wonder why this happens. What does /proc/iomem show? /Jarkko