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=-7.1 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,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 64C38C43463 for ; Mon, 21 Sep 2020 11:00:33 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 207DC207BC for ; Mon, 21 Sep 2020 11:00:33 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1600686033; bh=uXPte3OmIEx5H4vZeCdjgjUGW4WAufAICRuu1vTB99s=; h=Date:From:To:Cc:Subject:References:In-Reply-To:List-ID:From; b=VfR6XxgVWUQCwVfvBrzwzq0YlPitzYXykY0oZWl8TmeejmQ+fYpHHfIqCpUi+Alfo 5ZQ62i5lY9b0K0VPNc8VonI/LO2hDUBVl6rnnY32ewApxGppo0Uiu3yGsrjQycd8f9 HNI8TL4oyUdD1KPxQ3EkiEJU5j6IIjVurTomHaFk= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726589AbgIULAb (ORCPT ); Mon, 21 Sep 2020 07:00:31 -0400 Received: from mail.kernel.org ([198.145.29.99]:44146 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726347AbgIULA0 (ORCPT ); Mon, 21 Sep 2020 07:00:26 -0400 Received: from willie-the-truck (236.31.169.217.in-addr.arpa [217.169.31.236]) (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 2747A206E5; Mon, 21 Sep 2020 11:00:25 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1600686026; bh=uXPte3OmIEx5H4vZeCdjgjUGW4WAufAICRuu1vTB99s=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=SVxJivcTqGyjO6H4SS/0pbaQvKeD9XgwnaB3xcFy5zofHgVT9KYU14minzRFZ5g5p +G7Ls6v8hOfMmEFeO7sMRB11l9bTq+6x5ezjJcoQ4ZEItM+0R2PYJmYD0n0nIHWhgn DA9pE9Xa2BXPbWHMydmkNrjc+pl7FGsiKhCIBOXE= Date: Mon, 21 Sep 2020 12:00:21 +0100 From: Will Deacon To: Anthony Steinhauser Cc: LKML , catalin.marinas@arm.com, maz@kernel.org Subject: Re: [PATCH] PR_SPEC_DISABLE_NOEXEC support for arm64. Message-ID: <20200921110020.GA2139@willie-the-truck> References: <20200717110532.238533-1-asteinhauser@google.com> <20200907171825.GB13281@willie-the-truck> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.10.1 (2018-07-13) Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi Anthony, On Sun, Sep 20, 2020 at 03:25:23AM -0700, Anthony Steinhauser wrote: > > As a heads up: I'm currently reworking most of this, and hope to post > > something within the next two weeks. > > Sure. Let me know whether you want to implement the > PR_SPEC_DISABLE_NOEXEC support directly or whether this patch would be > relevant even after your rework. I posted a first cut at the rework on Friday: http://lists.infradead.org/pipermail/linux-arm-kernel/2020-September/602709.html so maybe you could take a look at implementing PR_SPEC_DISABLE_NOEXEC on top of that? If not, please let me know and I can look into it as I think it should be reasonably straightforward. Will