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 7738CC433DF for ; Fri, 9 Oct 2020 10:58:23 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 34D60222C4 for ; Fri, 9 Oct 2020 10:58:23 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1602241103; bh=CMrGYTrcD+5IJHtI0bpuU46GnNpct5AbTTzXkmjepxA=; h=Date:From:To:Cc:Subject:References:In-Reply-To:List-ID:From; b=eO1c3BAcd5PHeH9FYqPrkvxzw+PUqHYBjA1sO9N4ZUlxxJa7Yrmi7/7ctuhlZjNFT k/xyabyzMuZti7wEjCNJNCNLJwEMmm9cE6Qeej8G9q9w4v+zPgr81sNNruTTxIvGlS ujpdRmUWDpbDA+oXn3nPqPkXYPW3vsGMKtxOMssE= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2387877AbgJIK6V (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: kvm@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