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=-6.8 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, SIGNED_OFF_BY,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 50A46C433E7 for ; Fri, 9 Oct 2020 10:58:22 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id EECA222284 for ; Fri, 9 Oct 2020 10:58:21 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1602241102; bh=CMrGYTrcD+5IJHtI0bpuU46GnNpct5AbTTzXkmjepxA=; h=Date:From:To:Cc:Subject:References:In-Reply-To:List-ID:From; b=b44mdCHo21ulbn19g9FW33YBvFduqo4DnTRtqRqTnxfcw/9Vlrty50WAy43bYRO2b id2MXFq2oNMlOgvLu1SMg68/DTDXvma5grmuJBlzSRO6x5h4KlhvKPy7VN7DexJs9e DpKDUYplmWdxxQOUkAtXMuwkkYODV7FUE1zUXJTU= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2387887AbgJIK6V (ORCPT ); Fri, 9 Oct 2020 06:58:21 -0400 Received: from mail.kernel.org ([198.145.29.99]:36200 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1731963AbgJIK6U (ORCPT ); Fri, 9 Oct 2020 06:58:20 -0400 Received: from localhost (83-86-74-64.cable.dynamic.v4.ziggo.nl [83.86.74.64]) (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 470C820709; Fri, 9 Oct 2020 10:58:19 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1602241099; bh=CMrGYTrcD+5IJHtI0bpuU46GnNpct5AbTTzXkmjepxA=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=p/je5FkxMfgA01Da0Dm48bbhGhmQ/tk5Ko0y4QC81AKGWRm6/6PVltQIK3ChH/raX vnNwpldAsv82zFBd7msHOjMz8e8LQfA2z+acOHddUxCfHeUYdNAiQhmqx2/qu92bLK /Kd1J1KcDZHKqheFRLHCZ6ZB51Ssvbuv+icZxCz8= Date: Fri, 9 Oct 2020 12:59:05 +0200 From: Greg Kroah-Hartman To: Daniel Vetter Cc: DRI Development , LKML , kvm@vger.kernel.org, linux-mm@kvack.org, linux-arm-kernel@lists.infradead.org, linux-samsung-soc@vger.kernel.org, linux-media@vger.kernel.org, linux-s390@vger.kernel.org, Daniel Vetter , Jason Gunthorpe , Kees Cook , Dan Williams , Andrew Morton , John Hubbard , =?iso-8859-1?B?Suly9G1l?= Glisse , Jan Kara , Arnd Bergmann , David Hildenbrand , "Rafael J. Wysocki" Subject: Re: [PATCH v2 14/17] resource: Move devmem revoke code to resource framework Message-ID: <20201009105905.GB505688@kroah.com> References: <20201009075934.3509076-1-daniel.vetter@ffwll.ch> <20201009075934.3509076-15-daniel.vetter@ffwll.ch> MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: <20201009075934.3509076-15-daniel.vetter@ffwll.ch> Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Fri, Oct 09, 2020 at 09:59:31AM +0200, Daniel Vetter wrote: > We want all iomem mmaps to consistently revoke ptes when the kernel > takes over and CONFIG_IO_STRICT_DEVMEM is enabled. This includes the > pci bar mmaps available through procfs and sysfs, which currently do > not revoke mappings. > > To prepare for this, move the code from the /dev/kmem driver to > kernel/resource.c. > > Signed-off-by: Daniel Vetter > Cc: Jason Gunthorpe > Cc: Kees Cook > Cc: Dan Williams > Cc: Andrew Morton > Cc: John Hubbard > Cc: Jérôme Glisse > Cc: Jan Kara > Cc: Dan Williams > Cc: linux-mm@kvack.org > Cc: linux-arm-kernel@lists.infradead.org > Cc: linux-samsung-soc@vger.kernel.org > Cc: linux-media@vger.kernel.org > Cc: Arnd Bergmann > Cc: Greg Kroah-Hartman > Cc: Daniel Vetter > Cc: David Hildenbrand > Cc: "Rafael J. Wysocki" Reviewed-by: Greg Kroah-Hartman From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail.kernel.org ([198.145.29.99]:36200 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1731963AbgJIK6U (ORCPT ); Fri, 9 Oct 2020 06:58:20 -0400 Date: Fri, 9 Oct 2020 12:59:05 +0200 From: Greg Kroah-Hartman Subject: Re: [PATCH v2 14/17] resource: Move devmem revoke code to resource framework Message-ID: <20201009105905.GB505688@kroah.com> References: <20201009075934.3509076-1-daniel.vetter@ffwll.ch> <20201009075934.3509076-15-daniel.vetter@ffwll.ch> MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Disposition: inline Content-Transfer-Encoding: quoted-printable In-Reply-To: <20201009075934.3509076-15-daniel.vetter@ffwll.ch> List-ID: To: Daniel Vetter Cc: DRI Development , LKML , kvm@vger.kernel.org, linux-mm@kvack.org, linux-arm-kernel@lists.infradead.org, linux-samsung-soc@vger.kernel.org, linux-media@vger.kernel.org, linux-s390@vger.kernel.org, Daniel Vetter , Jason Gunthorpe , Kees Cook , Dan Williams , Andrew Morton , John Hubbard , =?iso-8859-1?B?Suly9G1l?= Glisse , Jan Kara , Arnd Bergmann , David Hildenbrand , "Rafael J. Wysocki" On Fri, Oct 09, 2020 at 09:59:31AM +0200, Daniel Vetter wrote: > We want all iomem mmaps to consistently revoke ptes when the kernel > takes over and CONFIG_IO_STRICT_DEVMEM is enabled. This includes the > pci bar mmaps available through procfs and sysfs, which currently do > not revoke mappings. >=20 > To prepare for this, move the code from the /dev/kmem driver to > kernel/resource.c. >=20 > Signed-off-by: Daniel Vetter > Cc: Jason Gunthorpe > Cc: Kees Cook > Cc: Dan Williams > Cc: Andrew Morton > Cc: John Hubbard > Cc: J=EF=BF=BDr=EF=BF=BDme Glisse > Cc: Jan Kara > Cc: Dan Williams > Cc: linux-mm@kvack.org > Cc: linux-arm-kernel@lists.infradead.org > Cc: linux-samsung-soc@vger.kernel.org > Cc: linux-media@vger.kernel.org > Cc: Arnd Bergmann > Cc: Greg Kroah-Hartman > Cc: Daniel Vetter > Cc: David Hildenbrand > Cc: "Rafael J. Wysocki" Reviewed-by: Greg Kroah-Hartman 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=-6.8 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, SIGNED_OFF_BY,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 04598C433E7 for ; Fri, 9 Oct 2020 10:59:45 +0000 (UTC) Received: from merlin.infradead.org (merlin.infradead.org [205.233.59.134]) (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 90D9120709 for ; Fri, 9 Oct 2020 10:59:44 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="uW2veKlU"; dkim=fail reason="signature verification failed" (1024-bit key) header.d=kernel.org header.i=@kernel.org header.b="p/je5Fkx" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 90D9120709 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=linuxfoundation.org Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=merlin.20170209; h=Sender:Content-Transfer-Encoding: Content-Type:Cc:List-Subscribe:List-Help:List-Post:List-Archive: List-Unsubscribe:List-Id:In-Reply-To:MIME-Version:References:Message-ID: Subject:To:From:Date:Reply-To:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=8cmLhfyaNGPN1gklNDxZS6oAtYX/UTjt2564MigVv5U=; b=uW2veKlUUF2iLg1U7Wzs9wT3G UgF99y3FGAFUTcIniOlwtNHbij0NMsiUV1HvcfpLUrK7vIj32EOIycRLQ3DtVwsx0+j50k4cEYGYL 7awogE1mSxdEZmmnq4tBY8Bgi4l4eZp6cVIr7PMFuSD+gADEbA9QwqVjwCY1gZyz5NRi5GefSOZhk BJj3yeWzaG6DOKm2yK/Lhkf+gsPRdigD3usUgdsE9Lq1Y/8ofu1twqPC3hfJnbltwIJQzivNkuOhF hwizBtF8meFrQhF7x8Skf1Odb/UOKSjYV1pj4NxryvnRXPCArOEeQeF923GdgqfFbBAeWfHb1CYq2 2P+nqhXZg==; Received: from localhost ([::1] helo=merlin.infradead.org) by merlin.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1kQq6Q-0006K9-Pb; Fri, 09 Oct 2020 10:58:22 +0000 Received: from mail.kernel.org ([198.145.29.99]) by merlin.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1kQq6O-0006JN-Q5 for linux-arm-kernel@lists.infradead.org; Fri, 09 Oct 2020 10:58:21 +0000 Received: from localhost (83-86-74-64.cable.dynamic.v4.ziggo.nl [83.86.74.64]) (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 470C820709; Fri, 9 Oct 2020 10:58:19 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1602241099; bh=CMrGYTrcD+5IJHtI0bpuU46GnNpct5AbTTzXkmjepxA=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=p/je5FkxMfgA01Da0Dm48bbhGhmQ/tk5Ko0y4QC81AKGWRm6/6PVltQIK3ChH/raX vnNwpldAsv82zFBd7msHOjMz8e8LQfA2z+acOHddUxCfHeUYdNAiQhmqx2/qu92bLK /Kd1J1KcDZHKqheFRLHCZ6ZB51Ssvbuv+icZxCz8= Date: Fri, 9 Oct 2020 12:59:05 +0200 From: Greg Kroah-Hartman To: Daniel Vetter Subject: Re: [PATCH v2 14/17] resource: Move devmem revoke code to resource framework Message-ID: <20201009105905.GB505688@kroah.com> References: <20201009075934.3509076-1-daniel.vetter@ffwll.ch> <20201009075934.3509076-15-daniel.vetter@ffwll.ch> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <20201009075934.3509076-15-daniel.vetter@ffwll.ch> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20201009_065820_957947_B5E534DE X-CRM114-Status: GOOD ( 15.57 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: linux-s390@vger.kernel.org, linux-samsung-soc@vger.kernel.org, Jan Kara , Kees Cook , kvm@vger.kernel.org, Jason Gunthorpe , John Hubbard , David Hildenbrand , LKML , DRI Development , "Rafael J. Wysocki" , linux-mm@kvack.org, =?iso-8859-1?B?Suly9G1l?= Glisse , Arnd Bergmann , Daniel Vetter , Dan Williams , Andrew Morton , linux-arm-kernel@lists.infradead.org, linux-media@vger.kernel.org Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org On Fri, Oct 09, 2020 at 09:59:31AM +0200, Daniel Vetter wrote: > We want all iomem mmaps to consistently revoke ptes when the kernel > takes over and CONFIG_IO_STRICT_DEVMEM is enabled. This includes the > pci bar mmaps available through procfs and sysfs, which currently do > not revoke mappings. > = > To prepare for this, move the code from the /dev/kmem driver to > kernel/resource.c. > = > Signed-off-by: Daniel Vetter > Cc: Jason Gunthorpe > Cc: Kees Cook > Cc: Dan Williams > Cc: Andrew Morton > Cc: John Hubbard > Cc: J=E9r=F4me Glisse > Cc: Jan Kara > Cc: Dan Williams > Cc: linux-mm@kvack.org > Cc: linux-arm-kernel@lists.infradead.org > Cc: linux-samsung-soc@vger.kernel.org > Cc: linux-media@vger.kernel.org > Cc: Arnd Bergmann > Cc: Greg Kroah-Hartman > Cc: Daniel Vetter > Cc: David Hildenbrand > Cc: "Rafael J. Wysocki" Reviewed-by: Greg Kroah-Hartman _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel 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=-6.5 required=3.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SIGNED_OFF_BY, 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 9BDF6C43457 for ; Fri, 9 Oct 2020 10:58:22 +0000 (UTC) Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (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 216DA222B9 for ; Fri, 9 Oct 2020 10:58:21 +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="p/je5Fkx" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 216DA222B9 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=linuxfoundation.org Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=dri-devel-bounces@lists.freedesktop.org Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 1FE466ECBA; Fri, 9 Oct 2020 10:58:21 +0000 (UTC) Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by gabe.freedesktop.org (Postfix) with ESMTPS id 1BE446ECBA for ; Fri, 9 Oct 2020 10:58:20 +0000 (UTC) Received: from localhost (83-86-74-64.cable.dynamic.v4.ziggo.nl [83.86.74.64]) (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 470C820709; Fri, 9 Oct 2020 10:58:19 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1602241099; bh=CMrGYTrcD+5IJHtI0bpuU46GnNpct5AbTTzXkmjepxA=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=p/je5FkxMfgA01Da0Dm48bbhGhmQ/tk5Ko0y4QC81AKGWRm6/6PVltQIK3ChH/raX vnNwpldAsv82zFBd7msHOjMz8e8LQfA2z+acOHddUxCfHeUYdNAiQhmqx2/qu92bLK /Kd1J1KcDZHKqheFRLHCZ6ZB51Ssvbuv+icZxCz8= Date: Fri, 9 Oct 2020 12:59:05 +0200 From: Greg Kroah-Hartman To: Daniel Vetter Subject: Re: [PATCH v2 14/17] resource: Move devmem revoke code to resource framework Message-ID: <20201009105905.GB505688@kroah.com> References: <20201009075934.3509076-1-daniel.vetter@ffwll.ch> <20201009075934.3509076-15-daniel.vetter@ffwll.ch> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <20201009075934.3509076-15-daniel.vetter@ffwll.ch> X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: linux-s390@vger.kernel.org, linux-samsung-soc@vger.kernel.org, Jan Kara , Kees Cook , kvm@vger.kernel.org, Jason Gunthorpe , John Hubbard , David Hildenbrand , LKML , DRI Development , "Rafael J. Wysocki" , linux-mm@kvack.org, =?iso-8859-1?B?Suly9G1l?= Glisse , Arnd Bergmann , Daniel Vetter , Dan Williams , Andrew Morton , linux-arm-kernel@lists.infradead.org, linux-media@vger.kernel.org Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" On Fri, Oct 09, 2020 at 09:59:31AM +0200, Daniel Vetter wrote: > We want all iomem mmaps to consistently revoke ptes when the kernel > takes over and CONFIG_IO_STRICT_DEVMEM is enabled. This includes the > pci bar mmaps available through procfs and sysfs, which currently do > not revoke mappings. > = > To prepare for this, move the code from the /dev/kmem driver to > kernel/resource.c. > = > Signed-off-by: Daniel Vetter > Cc: Jason Gunthorpe > Cc: Kees Cook > Cc: Dan Williams > Cc: Andrew Morton > Cc: John Hubbard > Cc: J=E9r=F4me Glisse > Cc: Jan Kara > Cc: Dan Williams > Cc: linux-mm@kvack.org > Cc: linux-arm-kernel@lists.infradead.org > Cc: linux-samsung-soc@vger.kernel.org > Cc: linux-media@vger.kernel.org > Cc: Arnd Bergmann > Cc: Greg Kroah-Hartman > Cc: Daniel Vetter > Cc: David Hildenbrand > Cc: "Rafael J. Wysocki" Reviewed-by: Greg Kroah-Hartman _______________________________________________ dri-devel mailing list dri-devel@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/dri-devel