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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 0F0ACC00140 for ; Wed, 24 Aug 2022 09:54:28 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235878AbiHXJy0 (ORCPT ); Wed, 24 Aug 2022 05:54:26 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:46318 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S236554AbiHXJyH (ORCPT ); Wed, 24 Aug 2022 05:54:07 -0400 Received: from frasgout.his.huawei.com (frasgout.his.huawei.com [185.176.79.56]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 588D297EE8; Wed, 24 Aug 2022 02:52:52 -0700 (PDT) Received: from fraeml705-chm.china.huawei.com (unknown [172.18.147.226]) by frasgout.his.huawei.com (SkyGuard) with ESMTP id 4MCLwl3Ssqz67ZDL; Wed, 24 Aug 2022 17:52:07 +0800 (CST) Received: from lhrpeml500005.china.huawei.com (7.191.163.240) by fraeml705-chm.china.huawei.com (10.206.15.54) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.2375.24; Wed, 24 Aug 2022 11:52:30 +0200 Received: from localhost (10.202.226.42) by lhrpeml500005.china.huawei.com (7.191.163.240) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2375.24; Wed, 24 Aug 2022 10:52:30 +0100 Date: Wed, 24 Aug 2022 10:52:29 +0100 From: Jonathan Cameron To: Dan Williams CC: Greg Kroah-Hartman , , Bjorn Helgaas , Alison Schofield , Vishal Verma , "Ben Widawsky" , , , , Lukas Wunner Subject: Re: [PATCH 1/2] PCI: Allow drivers to request exclusive config regions Message-ID: <20220824105229.00006c79@huawei.com> In-Reply-To: <6303dcb63e3e1_1b32294d9@dwillia2-xfh.jf.intel.com.notmuch> References: <20220822005237.540039-1-ira.weiny@intel.com> <20220822005237.540039-2-ira.weiny@intel.com> <6303dcb63e3e1_1b32294d9@dwillia2-xfh.jf.intel.com.notmuch> X-Mailer: Claws Mail 4.0.0 (GTK+ 3.24.29; i686-w64-mingw32) MIME-Version: 1.0 Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit X-Originating-IP: [10.202.226.42] X-ClientProxiedBy: lhrpeml100005.china.huawei.com (7.191.160.25) To lhrpeml500005.china.huawei.com (7.191.163.240) X-CFilter-Loop: Reflected Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org > > > What are you trying to protect yourself from, bogus bug reports by > > people doing bad things and then blaming you? That's easy to handle, > > just ignore them :) > > I asked Ira to push on this to protect the kernel from people like me, > :). So, there is this massively complicated specification for device > attestation and link integrity / encryption protection (SPDM and IDE) > that has applications to both PCIe and CXL. I do not see a path in the > near term to land that support in the kernel. > > DOE being user accessible though, lends itself to pure userspace > implementations of SPDM and IDE infrastructure. I want to develop that > infrastructure, but also have the kernel reserve the space / right to > obviate that implementation with kernel control of the DOE mailbox, SPDM > sessions, and IDE keys in the future. Can't resist... If anyone is at Plumbers (in person or virtually) the will be a BoF on SPDM etc. Not scheduled yet... https://lpc.events/event/16/contributions/1304/ Come join the Kernel vs Partly Kernel vs fully Userspace discussions. Thanks, Jonathan