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 C5443C10F25 for ; Wed, 11 Mar 2020 06:51:24 +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 8F459208C4 for ; Wed, 11 Mar 2020 06:51:24 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 8F459208C4 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=linux.intel.com 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 66588881BF; Wed, 11 Mar 2020 06:51:23 +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 mcSbbgQgR3Ve; Wed, 11 Mar 2020 06:51:14 +0000 (UTC) Received: from lists.linuxfoundation.org (lf-lists.osuosl.org [140.211.9.56]) by hemlock.osuosl.org (Postfix) with ESMTP id 8440088189; Wed, 11 Mar 2020 06:50:55 +0000 (UTC) Received: from lf-lists.osuosl.org (localhost [127.0.0.1]) by lists.linuxfoundation.org (Postfix) with ESMTP id 65A18C18D3; Wed, 11 Mar 2020 06:50:55 +0000 (UTC) Received: from whitealder.osuosl.org (smtp1.osuosl.org [140.211.166.138]) by lists.linuxfoundation.org (Postfix) with ESMTP id 5F860C0177 for ; Wed, 11 Mar 2020 06:50:53 +0000 (UTC) Received: from localhost (localhost [127.0.0.1]) by whitealder.osuosl.org (Postfix) with ESMTP id 4637C878F0 for ; Wed, 11 Mar 2020 06:50:53 +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 FbuZcpJgulGF for ; Wed, 11 Mar 2020 06:50:52 +0000 (UTC) X-Greylist: domain auto-whitelisted by SQLgrey-1.7.6 Received: from mga01.intel.com (mga01.intel.com [192.55.52.88]) by whitealder.osuosl.org (Postfix) with ESMTPS id 60B3C8742D for ; Wed, 11 Mar 2020 06:50:44 +0000 (UTC) X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from orsmga003.jf.intel.com ([10.7.209.27]) by fmsmga101.fm.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 10 Mar 2020 23:50:43 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.70,539,1574150400"; d="scan'208";a="242588178" Received: from blu2-mobl3.ccr.corp.intel.com (HELO [10.254.208.137]) ([10.254.208.137]) by orsmga003.jf.intel.com with ESMTP; 10 Mar 2020 23:50:40 -0700 Subject: Re: [PATCH 0/6] Replace private domain with per-group default To: Joerg Roedel References: <20200307062014.3288-1-baolu.lu@linux.intel.com> <20200310111503.GF3794@8bytes.org> From: Lu Baolu Message-ID: Date: Wed, 11 Mar 2020 14:50:39 +0800 User-Agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:68.0) Gecko/20100101 Thunderbird/68.5.0 MIME-Version: 1.0 In-Reply-To: <20200310111503.GF3794@8bytes.org> Content-Language: en-US Cc: kevin.tian@intel.com, ashok.raj@intel.com, linux-kernel@vger.kernel.org, Daniel Drake , iommu@lists.linux-foundation.org, Robin Murphy , Christoph Hellwig , Derrick Jonathan 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-Transfer-Encoding: 7bit Content-Type: text/plain; charset="us-ascii"; Format="flowed" Errors-To: iommu-bounces@lists.linux-foundation.org Sender: "iommu" Hi Joerg, On 2020/3/10 19:15, Joerg Roedel wrote: > Hi Baolu, > > On Sat, Mar 07, 2020 at 02:20:08PM +0800, Lu Baolu wrote: >> Lu Baolu (5): >> iommu: Configure default domain with dev_def_domain_type >> iommu/vt-d: Don't force 32bit devices to uses DMA domain >> iommu/vt-d: Don't force PCI sub-hierarchy to use DMA domain >> iommu/vt-d: Add dev_def_domain_type callback >> iommu/vt-d: Apply per-device dma_ops >> >> Sai Praneeth Prakhya (1): >> iommu: Add dev_def_domain_type() callback in iommu_ops > > I like this patch-set, but I fear some regressions from patch > "iommu/vt-d: Don't force 32bit devices to uses DMA domain". Have you > tested this series on a couple of machines, ideally even older ones from > the first generation of VT-d hardware? The oldest hardware I have is Ivy Bridge. :-) Actually, The effect of using identity domain for 32-bit devices is the same as that of adding intel_iommu=off in the kernel parameter. Hence, if there is any regression, people should also find it with intel_iommu=off. intel_iommu=off support is added at the very beginning of VT-d driver. Best regards, baolu _______________________________________________ iommu mailing list iommu@lists.linux-foundation.org https://lists.linuxfoundation.org/mailman/listinfo/iommu