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=-2.3 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,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 26735C2BA16 for ; Wed, 8 Apr 2020 15:33:00 +0000 (UTC) Received: from whitealder.osuosl.org (smtp1.osuosl.org [140.211.166.138]) (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 EA72820769 for ; Wed, 8 Apr 2020 15:32:59 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org EA72820769 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=lst.de Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=iommu-bounces@lists.linux-foundation.org Received: from localhost (localhost [127.0.0.1]) by whitealder.osuosl.org (Postfix) with ESMTP id C140587FCE; Wed, 8 Apr 2020 15:32:59 +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 Fi9lTnzOGnAl; Wed, 8 Apr 2020 15:32:58 +0000 (UTC) Received: from lists.linuxfoundation.org (lf-lists.osuosl.org [140.211.9.56]) by whitealder.osuosl.org (Postfix) with ESMTP id 863A287FC2; Wed, 8 Apr 2020 15:32:58 +0000 (UTC) Received: from lf-lists.osuosl.org (localhost [127.0.0.1]) by lists.linuxfoundation.org (Postfix) with ESMTP id 7AE84C1AE8; Wed, 8 Apr 2020 15:32:58 +0000 (UTC) Received: from fraxinus.osuosl.org (smtp4.osuosl.org [140.211.166.137]) by lists.linuxfoundation.org (Postfix) with ESMTP id 6DE89C0177 for ; Wed, 8 Apr 2020 15:32:56 +0000 (UTC) Received: from localhost (localhost [127.0.0.1]) by fraxinus.osuosl.org (Postfix) with ESMTP id 5AA2C859F4 for ; Wed, 8 Apr 2020 15:32:56 +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 Td7yZFm2q1XK for ; Wed, 8 Apr 2020 15:32:55 +0000 (UTC) X-Greylist: from auto-whitelisted by SQLgrey-1.7.6 Received: from verein.lst.de (verein.lst.de [213.95.11.211]) by fraxinus.osuosl.org (Postfix) with ESMTPS id 13DB1859D2 for ; Wed, 8 Apr 2020 15:32:55 +0000 (UTC) Received: by verein.lst.de (Postfix, from userid 2407) id 7D40368CEC; Wed, 8 Apr 2020 17:32:45 +0200 (CEST) Date: Wed, 8 Apr 2020 17:32:44 +0200 From: Christoph Hellwig To: Mark Rutland Subject: Re: [PATCH 18/28] mm: enforce that vmap can't map pages executable Message-ID: <20200408153244.GA27818@lst.de> References: <20200408115926.1467567-1-hch@lst.de> <20200408115926.1467567-19-hch@lst.de> <20200408123835.GB36478@lakrids.cambridge.arm.com> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <20200408123835.GB36478@lakrids.cambridge.arm.com> User-Agent: Mutt/1.5.17 (2007-11-01) Cc: linux-hyperv@vger.kernel.org, David Airlie , Catalin marinas , dri-devel@lists.freedesktop.org, linux-mm@kvack.org, "K. Y. Srinivasan" , Will Deacon , Sumit Semwal , linux-arch@vger.kernel.org, linux-s390@vger.kernel.org, Wei Liu , Stephen Hemminger , x86@kernel.org, Christoph Hellwig , Peter Zijlstra , Laura Abbott , Nitin Gupta , Daniel Vetter , Haiyang Zhang , linaro-mm-sig@lists.linaro.org, bpf@vger.kernel.org, linux-arm-kernel@lists.infradead.org, Christophe Leroy , Robin Murphy , linux-kernel@vger.kernel.org, Minchan Kim , iommu@lists.linux-foundation.org, Andrew Morton , linuxppc-dev@lists.ozlabs.org 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 Wed, Apr 08, 2020 at 01:38:36PM +0100, Mark Rutland wrote: > > +static inline pgprot_t pgprot_nx(pgprot_t prot) > > +{ > > + return __pgprot(pgprot_val(prot) | _PAGE_NX); > > +} > > +#define pgprot_nx pgprot_nx > > + > > #ifdef CONFIG_X86_PAE > > I reckon for arm64 we can do similar in our : > > #define pgprot_nx(pgprot_t prot) \ > __pgprot_modify(prot, 0, PTE_PXN) > > ... matching the style of our existing pgprot_*() modifier helpers. I've added that for the next version with attribution to you. _______________________________________________ iommu mailing list iommu@lists.linux-foundation.org https://lists.linuxfoundation.org/mailman/listinfo/iommu