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=-2.2 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_SANE_1 autolearn=no 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 25525C19759 for ; Sun, 4 Aug 2019 20:45:26 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id EDC9A2070D for ; Sun, 4 Aug 2019 20:45:25 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726587AbfHDUpZ (ORCPT ); Sun, 4 Aug 2019 16:45:25 -0400 Received: from mga03.intel.com ([134.134.136.65]:3654 "EHLO mga03.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726561AbfHDUpZ (ORCPT ); Sun, 4 Aug 2019 16:45:25 -0400 X-Amp-Result: UNKNOWN X-Amp-Original-Verdict: FILE UNKNOWN X-Amp-File-Uploaded: False Received: from fmsmga007.fm.intel.com ([10.253.24.52]) by orsmga103.jf.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 04 Aug 2019 13:44:59 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.64,347,1559545200"; d="scan'208";a="175408009" Received: from rmohamed-mobl1.ger.corp.intel.com (HELO localhost) ([10.252.37.16]) by fmsmga007.fm.intel.com with ESMTP; 04 Aug 2019 13:44:57 -0700 Date: Sun, 4 Aug 2019 23:44:55 +0300 From: Jarkko Sakkinen To: Zach Kubinski Cc: linux-integrity@vger.kernel.org Subject: Re: A Request for your Expertise: tpm_crb: probe of MSFT0101:00 failed with error -16 Message-ID: <20190804204400.kr4zhqalik7u64u6@linux.intel.com> References: <504710714.386603.1564694480182.JavaMail.zimbra@xes-inc.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <504710714.386603.1564694480182.JavaMail.zimbra@xes-inc.com> Organization: Intel Finland Oy - BIC 0357606-4 - Westendinkatu 7, 02160 Espoo User-Agent: NeoMutt/20180716 Sender: linux-integrity-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-integrity@vger.kernel.org Hi On Thu, Aug 01, 2019 at 04:21:20PM -0500, Zach Kubinski wrote: > Hi Jarkko, > I'm working on what I believe is a bug with our BIOS here at X-ES > which gives the following error in dmesg: > tpm_crb MSFT0101:00: can't request region for resource [mem > 0x7be54000-0x7be5402f] > tpm_crb: probe of MSFT0101:00 failed with error -16 > I've seen your name in many forums spanning the last couple years on > this > issue and related issues but I can't seem to find a thread that > accurately > describes and fixes the issue. > I wanted to reach out to see if you would be willing to help clarify a > thread or point me to one that could assist me in fixing this issue. > Currently, I believe that > this issue stems from the TPM attempting to allocate the Control > Area(CONA) in the ACPI_NVS region, shown in the e820 table, which > returns > the Linux error code -16 "EBUSY". > From what I read, the entire ACPI_NVS region has this flag which leads > me > to believe that there should be somewhere else to allocate the Control > Area. > I am using Linux Kernel 4-19-34 and my BIOS is UEFI Grangeville. If > you > would like any further information please let me know, I hope this > message > reaches you and I'm looking forward to hearing from you. > Best, > Zach Kubinski I would ask you to read https://www.kernel.org/doc/html/latest/process/email-clients.html and then configure your email client accordingly. Also go through this with time https://kernelnewbies.org/PatchCulture. Especially I would suggest to read email etiquette part carefully. Thank you. /Jarkko