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=-3.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS 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 942E3C433ED for ; Thu, 8 Apr 2021 07:18:58 +0000 (UTC) Received: from smtp3.osuosl.org (smtp3.osuosl.org [140.211.166.136]) (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 01A3D6115B for ; Thu, 8 Apr 2021 07:18:57 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 01A3D6115B 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 smtp3.osuosl.org (Postfix) with ESMTP id BFB8A60703; Thu, 8 Apr 2021 07:18:57 +0000 (UTC) X-Virus-Scanned: amavisd-new at osuosl.org Received: from smtp3.osuosl.org ([127.0.0.1]) by localhost (smtp3.osuosl.org [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id Z4hwuDm9mjll; Thu, 8 Apr 2021 07:18:57 +0000 (UTC) Received: from lists.linuxfoundation.org (lf-lists.osuosl.org [IPv6:2605:bc80:3010:104::8cd3:938]) by smtp3.osuosl.org (Postfix) with ESMTP id C5C5D60A3B; Thu, 8 Apr 2021 07:18:56 +0000 (UTC) Received: from lf-lists.osuosl.org (localhost [127.0.0.1]) by lists.linuxfoundation.org (Postfix) with ESMTP id 8E2F2C000B; Thu, 8 Apr 2021 07:18:56 +0000 (UTC) Received: from smtp2.osuosl.org (smtp2.osuosl.org [IPv6:2605:bc80:3010::133]) by lists.linuxfoundation.org (Postfix) with ESMTP id 59506C000A for ; Thu, 8 Apr 2021 07:18:55 +0000 (UTC) Received: from localhost (localhost [127.0.0.1]) by smtp2.osuosl.org (Postfix) with ESMTP id 48795400DB for ; Thu, 8 Apr 2021 07:18:55 +0000 (UTC) X-Virus-Scanned: amavisd-new at osuosl.org Received: from smtp2.osuosl.org ([127.0.0.1]) by localhost (smtp2.osuosl.org [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id wBqoEyeVW1yx for ; Thu, 8 Apr 2021 07:18:54 +0000 (UTC) X-Greylist: from auto-whitelisted by SQLgrey-1.8.0 Received: from theia.8bytes.org (8bytes.org [81.169.241.247]) by smtp2.osuosl.org (Postfix) with ESMTPS id 1E781400D7 for ; Thu, 8 Apr 2021 07:18:53 +0000 (UTC) Received: by theia.8bytes.org (Postfix, from userid 1000) id EA26C426; Thu, 8 Apr 2021 09:18:49 +0200 (CEST) Date: Thu, 8 Apr 2021 09:18:48 +0200 From: Joerg Roedel To: Nadav Amit Subject: Re: [PATCH] iommu/amd: page-specific invalidations for more than one page Message-ID: References: <20210323210619.513069-1-namit@vmware.com> <71C74038-943D-4041-B6FF-09A8C40CA204@vmware.com> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <71C74038-943D-4041-B6FF-09A8C40CA204@vmware.com> Cc: "iommu@lists.linux-foundation.org" , Will Deacon , Jiajun Cao , "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" Hi Nadav, On Wed, Apr 07, 2021 at 05:57:31PM +0000, Nadav Amit wrote: > I tested it on real bare-metal hardware. I ran some basic I/O workloads > with the IOMMU enabled, checkers enabled/disabled, and so on. > > However, I only tested the IOMMU-flushes and I did not test that the > device-IOTLB flush work, since I did not have the hardware for that. > > If you can refer me to the old patches, I will have a look and see > whether I can see a difference in the logic or test them. If you want > me to run different tests - let me know. If you want me to remove > the device-IOTLB invalidations logic - that is also fine with me. Here is the patch-set, it is from 2010 and against a very old version of the AMD IOMMU driver: https://lore.kernel.org/lkml/1265898797-32183-1-git-send-email-joerg.roedel@amd.com/ Regards, Joerg _______________________________________________ iommu mailing list iommu@lists.linux-foundation.org https://lists.linuxfoundation.org/mailman/listinfo/iommu