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=-0.8 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE, SPF_PASS,URIBL_BLOCKED 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 AA51AC433E0 for ; Thu, 18 Jun 2020 14:56:51 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 8752C20885 for ; Thu, 18 Jun 2020 14:56:51 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1592492211; bh=kuNcnjm0Q8W+waGxPF0G1vY00e5uDW5TVrJqCcu89jk=; h=Date:From:To:Cc:Subject:References:In-Reply-To:List-ID:From; b=nbXErcOEUhWQ9i8uzo436lg0ET6pcxPyq5zMfMajR9y6XTGyqX+q46vtLbyBGgImm x/Czo1PXQ7GRHylZtyabubnPUq4/PexWl22FsFOucokDJEIy/6ofiQ4/Qer4yAII75 y1S5WFza91q/wGML3ywrDih+3zxdx//jrMhIX84U= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1731281AbgFRO4q (ORCPT ); Thu, 18 Jun 2020 10:56:46 -0400 Received: from mail.kernel.org ([198.145.29.99]:44820 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1730949AbgFRO4p (ORCPT ); Thu, 18 Jun 2020 10:56:45 -0400 Received: from localhost (83-86-89-107.cable.dynamic.v4.ziggo.nl [83.86.89.107]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 968082075E; Thu, 18 Jun 2020 14:56:44 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1592492205; bh=kuNcnjm0Q8W+waGxPF0G1vY00e5uDW5TVrJqCcu89jk=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=uF5HmNrH6C78eYvYO3anenwMtz+JM2R17ifCoXsbUJ7zgjVgVKuqk1hdls42f7kLb /vs2q4SZEiKbfdPOb7DKVtz4odUZBWtA58q5dSzITtIpodtjfZQkS26R+alnnWaxDr iU5E67DYFsWib8kFh1TfzErJwFC5hPUmC637lCZU= Date: Thu, 18 Jun 2020 16:56:37 +0200 From: Greg Kroah-Hartman To: Andy Shevchenko Cc: Rajat Jain , Christoph Hellwig , David Woodhouse , Lu Baolu , Joerg Roedel , Bjorn Helgaas , "Rafael J. Wysocki" , Len Brown , iommu@lists.linux-foundation.org, Linux Kernel Mailing List , linux-pci , ACPI Devel Maling List , Raj Ashok , "Krishnakumar, Lalithambika" , Mika Westerberg , Jean-Philippe Brucker , Prashant Malani , Benson Leung , Todd Broch , Alex Levin , Mattias Nissler , Rajat Jain , Bernie Keany , Aaron Durbin , Diego Rivas , Duncan Laurie , Furquan Shaikh , Jesse Barnes , Christian Kellner , Alex Williamson , Oliver O'Halloran Subject: Re: [PATCH 4/4] pci: export untrusted attribute in sysfs Message-ID: <20200618145637.GA3017232@kroah.com> References: <20200616011742.138975-1-rajatja@google.com> <20200616011742.138975-4-rajatja@google.com> <20200616073249.GB30385@infradead.org> <20200617073100.GA14424@infradead.org> <20200618083646.GA1066967@kroah.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: Sender: linux-acpi-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-acpi@vger.kernel.org On Thu, Jun 18, 2020 at 12:14:41PM +0300, Andy Shevchenko wrote: > On Thu, Jun 18, 2020 at 11:36 AM Greg Kroah-Hartman > wrote: > > > > On Thu, Jun 18, 2020 at 11:12:56AM +0300, Andy Shevchenko wrote: > > > On Wed, Jun 17, 2020 at 10:56 PM Rajat Jain wrote: > > > > On Wed, Jun 17, 2020 at 12:31 AM Christoph Hellwig wrote: > > > > > > ... > > > > > > > (and likely call it "external" instead of "untrusted". > > > > > > Which is not okay. 'External' to what? 'untrusted' has been carefully > > > chosen by the meaning of it. > > > What external does mean for M.2. WWAN card in my laptop? It's in ACPI > > > tables, but I can replace it. > > > > Then your ACPI tables should show this, there is an attribute for it, > > right? > > There is a _PLD() method, but it's for the USB devices (or optional > for others, I don't remember by heart). So, most of the ACPI tables, > alas, don't show this. There is something like this for PCI as well, otherwise they wouldn't be getting this info from "the ether" :) thanks, greg k-h 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=-0.5 required=3.0 tests=DKIM_INVALID,DKIM_SIGNED, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, URIBL_BLOCKED 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 D40DEC433DF for ; Thu, 18 Jun 2020 14:56:48 +0000 (UTC) Received: from fraxinus.osuosl.org (smtp4.osuosl.org [140.211.166.137]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 84FD5208DB for ; Thu, 18 Jun 2020 14:56:48 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (1024-bit key) header.d=kernel.org header.i=@kernel.org header.b="uF5HmNrH" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 84FD5208DB Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=linuxfoundation.org Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=iommu-bounces@lists.linux-foundation.org Received: from localhost (localhost [127.0.0.1]) by fraxinus.osuosl.org (Postfix) with ESMTP id 5217F87B4B; Thu, 18 Jun 2020 14:56:48 +0000 (UTC) X-Virus-Scanned: amavisd-new at osuosl.org Received: from fraxinus.osuosl.org ([127.0.0.1]) by localhost (.osuosl.org [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id EvInKgc0P9sL; Thu, 18 Jun 2020 14:56:47 +0000 (UTC) Received: from lists.linuxfoundation.org (lf-lists.osuosl.org [140.211.9.56]) by fraxinus.osuosl.org (Postfix) with ESMTP id B28EC87A88; Thu, 18 Jun 2020 14:56:47 +0000 (UTC) Received: from lf-lists.osuosl.org (localhost [127.0.0.1]) by lists.linuxfoundation.org (Postfix) with ESMTP id 7F3A5C07FF; Thu, 18 Jun 2020 14:56:47 +0000 (UTC) Received: from whitealder.osuosl.org (smtp1.osuosl.org [140.211.166.138]) by lists.linuxfoundation.org (Postfix) with ESMTP id 31356C016E for ; Thu, 18 Jun 2020 14:56:46 +0000 (UTC) Received: from localhost (localhost [127.0.0.1]) by whitealder.osuosl.org (Postfix) with ESMTP id 1C3D0886B2 for ; Thu, 18 Jun 2020 14:56:46 +0000 (UTC) X-Virus-Scanned: amavisd-new at osuosl.org Received: from whitealder.osuosl.org ([127.0.0.1]) by localhost (.osuosl.org [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id JqgNdZ6NABb5 for ; Thu, 18 Jun 2020 14:56:45 +0000 (UTC) X-Greylist: from auto-whitelisted by SQLgrey-1.7.6 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by whitealder.osuosl.org (Postfix) with ESMTPS id 72F5E8869C for ; Thu, 18 Jun 2020 14:56:45 +0000 (UTC) Received: from localhost (83-86-89-107.cable.dynamic.v4.ziggo.nl [83.86.89.107]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 968082075E; Thu, 18 Jun 2020 14:56:44 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1592492205; bh=kuNcnjm0Q8W+waGxPF0G1vY00e5uDW5TVrJqCcu89jk=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=uF5HmNrH6C78eYvYO3anenwMtz+JM2R17ifCoXsbUJ7zgjVgVKuqk1hdls42f7kLb /vs2q4SZEiKbfdPOb7DKVtz4odUZBWtA58q5dSzITtIpodtjfZQkS26R+alnnWaxDr iU5E67DYFsWib8kFh1TfzErJwFC5hPUmC637lCZU= Date: Thu, 18 Jun 2020 16:56:37 +0200 From: Greg Kroah-Hartman To: Andy Shevchenko Subject: Re: [PATCH 4/4] pci: export untrusted attribute in sysfs Message-ID: <20200618145637.GA3017232@kroah.com> References: <20200616011742.138975-1-rajatja@google.com> <20200616011742.138975-4-rajatja@google.com> <20200616073249.GB30385@infradead.org> <20200617073100.GA14424@infradead.org> <20200618083646.GA1066967@kroah.com> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: Cc: Todd Broch , linux-pci , "Krishnakumar, Lalithambika" , Diego Rivas , Rajat Jain , Jean-Philippe Brucker , Furquan Shaikh , Raj Ashok , Christoph Hellwig , ACPI Devel Maling List , Christian Kellner , Mattias Nissler , Jesse Barnes , Len Brown , Rajat Jain , Prashant Malani , Aaron Durbin , Alex Williamson , Bjorn Helgaas , Mika Westerberg , Bernie Keany , Duncan Laurie , "Rafael J. Wysocki" , Linux Kernel Mailing List , iommu@lists.linux-foundation.org, Oliver O'Halloran , Benson Leung , David Woodhouse , Alex Levin X-BeenThere: iommu@lists.linux-foundation.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: Development issues for Linux IOMMU support List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: iommu-bounces@lists.linux-foundation.org Sender: "iommu" On Thu, Jun 18, 2020 at 12:14:41PM +0300, Andy Shevchenko wrote: > On Thu, Jun 18, 2020 at 11:36 AM Greg Kroah-Hartman > wrote: > > > > On Thu, Jun 18, 2020 at 11:12:56AM +0300, Andy Shevchenko wrote: > > > On Wed, Jun 17, 2020 at 10:56 PM Rajat Jain wrote: > > > > On Wed, Jun 17, 2020 at 12:31 AM Christoph Hellwig wrote: > > > > > > ... > > > > > > > (and likely call it "external" instead of "untrusted". > > > > > > Which is not okay. 'External' to what? 'untrusted' has been carefully > > > chosen by the meaning of it. > > > What external does mean for M.2. WWAN card in my laptop? It's in ACPI > > > tables, but I can replace it. > > > > Then your ACPI tables should show this, there is an attribute for it, > > right? > > There is a _PLD() method, but it's for the USB devices (or optional > for others, I don't remember by heart). So, most of the ACPI tables, > alas, don't show this. There is something like this for PCI as well, otherwise they wouldn't be getting this info from "the ether" :) thanks, greg k-h _______________________________________________ iommu mailing list iommu@lists.linux-foundation.org https://lists.linuxfoundation.org/mailman/listinfo/iommu