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=-2.2 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 D95E5C433E0 for ; Wed, 8 Jul 2020 12:26:09 +0000 (UTC) Received: from hemlock.osuosl.org (smtp2.osuosl.org [140.211.166.133]) (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 B641920720 for ; Wed, 8 Jul 2020 12:26:09 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org B641920720 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 hemlock.osuosl.org (Postfix) with ESMTP id 8D2CE895AE; Wed, 8 Jul 2020 12:26:09 +0000 (UTC) X-Virus-Scanned: amavisd-new at osuosl.org Received: from hemlock.osuosl.org ([127.0.0.1]) by localhost (.osuosl.org [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id Us905RjNiAUD; Wed, 8 Jul 2020 12:26:08 +0000 (UTC) Received: from lists.linuxfoundation.org (lf-lists.osuosl.org [140.211.9.56]) by hemlock.osuosl.org (Postfix) with ESMTP id CED94896A0; Wed, 8 Jul 2020 12:26:08 +0000 (UTC) Received: from lf-lists.osuosl.org (localhost [127.0.0.1]) by lists.linuxfoundation.org (Postfix) with ESMTP id B0AD0C077B; Wed, 8 Jul 2020 12:26:08 +0000 (UTC) Received: from whitealder.osuosl.org (smtp1.osuosl.org [140.211.166.138]) by lists.linuxfoundation.org (Postfix) with ESMTP id 3F046C016F for ; Wed, 8 Jul 2020 12:26:07 +0000 (UTC) Received: from localhost (localhost [127.0.0.1]) by whitealder.osuosl.org (Postfix) with ESMTP id 2759687ED6 for ; Wed, 8 Jul 2020 12:26:07 +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 GpQQGD7RF1wj for ; Wed, 8 Jul 2020 12:26:06 +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 whitealder.osuosl.org (Postfix) with ESMTPS id D601B88D39 for ; Wed, 8 Jul 2020 12:26:05 +0000 (UTC) Received: by verein.lst.de (Postfix, from userid 2407) id 7232068AFE; Wed, 8 Jul 2020 14:26:01 +0200 (CEST) Date: Wed, 8 Jul 2020 14:26:01 +0200 From: Christoph Hellwig To: Robin Murphy Subject: Re: [PATCH 1/2] iommu/intel: Avoid SAC address trick for PCIe devices Message-ID: <20200708122601.GB19619@lst.de> References: MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.17 (2007-11-01) Cc: linux-pci@vger.kernel.org, linux-kernel@vger.kernel.org, iommu@lists.linux-foundation.org, jonathan.lemon@gmail.com, dwmw2@infradead.org, hch@lst.de, linux-arm-kernel@lists.infradead.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" Looks pretty sensible. > - if (!dmar_forcedac && dma_mask > DMA_BIT_MASK(32)) { > + if (!dmar_forcedac && dma_mask > DMA_BIT_MASK(32) && > + dev_is_pci(dev) && !pci_is_pcie(to_pci_dev(dev))) { The only thing I wonder is if it is worth to add a little helper for this check, but with everything moving to dma-iommu that might not be needed. Btw, does anyone know what the status of the intel-iommu conversion to dma-iommu is? _______________________________________________ iommu mailing list iommu@lists.linux-foundation.org https://lists.linuxfoundation.org/mailman/listinfo/iommu