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=-15.2 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_SANE_1 autolearn=ham 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 0073CC433DB for ; Thu, 28 Jan 2021 10:34:40 +0000 (UTC) Received: from fraxinus.osuosl.org (smtp4.osuosl.org [140.211.166.137]) (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 7069964DCE for ; Thu, 28 Jan 2021 10:34:39 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 7069964DCE Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=8bytes.org Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=iommu-bounces@lists.linux-foundation.org Received: from localhost (localhost [127.0.0.1]) by fraxinus.osuosl.org (Postfix) with ESMTP id 0868D85277; Thu, 28 Jan 2021 10:34:39 +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 Zsn583W-f7Bg; Thu, 28 Jan 2021 10:34:37 +0000 (UTC) Received: from lists.linuxfoundation.org (lf-lists.osuosl.org [140.211.9.56]) by fraxinus.osuosl.org (Postfix) with ESMTP id ECF3D8629B; Thu, 28 Jan 2021 10:34:37 +0000 (UTC) Received: from lf-lists.osuosl.org (localhost [127.0.0.1]) by lists.linuxfoundation.org (Postfix) with ESMTP id CB146C08A1; Thu, 28 Jan 2021 10:34:37 +0000 (UTC) Received: from fraxinus.osuosl.org (smtp4.osuosl.org [140.211.166.137]) by lists.linuxfoundation.org (Postfix) with ESMTP id 475C8C013A for ; Thu, 28 Jan 2021 10:34:36 +0000 (UTC) Received: from localhost (localhost [127.0.0.1]) by fraxinus.osuosl.org (Postfix) with ESMTP id 4307685277 for ; Thu, 28 Jan 2021 10:34:36 +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 mg-uKGiWZ_-3 for ; Thu, 28 Jan 2021 10:34:34 +0000 (UTC) X-Greylist: from auto-whitelisted by SQLgrey-1.7.6 Received: from theia.8bytes.org (8bytes.org [81.169.241.247]) by fraxinus.osuosl.org (Postfix) with ESMTPS id 38B858466C for ; Thu, 28 Jan 2021 10:34:34 +0000 (UTC) Received: by theia.8bytes.org (Postfix, from userid 1000) id 7492351D; Thu, 28 Jan 2021 11:34:32 +0100 (CET) Date: Thu, 28 Jan 2021 11:34:31 +0100 From: Joerg Roedel To: Lu Baolu Subject: Re: [PATCH 1/1] iommu/vt-d: Preset Access/Dirty bits for IOVA over FL Message-ID: <20210128103430.GI32671@8bytes.org> References: <20210115004202.953965-1-baolu.lu@linux.intel.com> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <20210115004202.953965-1-baolu.lu@linux.intel.com> User-Agent: Mutt/1.10.1 (2018-07-13) Cc: iommu@lists.linux-foundation.org, Will Deacon , Ashok Raj , linux-kernel@vger.kernel.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 Fri, Jan 15, 2021 at 08:42:02AM +0800, Lu Baolu wrote: > The Access/Dirty bits in the first level page table entry will be set > whenever a page table entry was used for address translation or write > permission was successfully translated. This is always true when using > the first-level page table for kernel IOVA. Instead of wasting hardware > cycles to update the certain bits, it's better to set them up at the > beginning. > > Suggested-by: Ashok Raj > Signed-off-by: Lu Baolu > --- > drivers/iommu/intel/iommu.c | 14 ++++++++++++-- > include/linux/intel-iommu.h | 2 ++ > 2 files changed, 14 insertions(+), 2 deletions(-) Applied, thanks. _______________________________________________ iommu mailing list iommu@lists.linux-foundation.org https://lists.linuxfoundation.org/mailman/listinfo/iommu