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=-15.3 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,NICE_REPLY_A,SPF_HELO_NONE,SPF_PASS,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 7A87EC433ED for ; Fri, 2 Apr 2021 03:41:25 +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 06E94610EA for ; Fri, 2 Apr 2021 03:41:24 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 06E94610EA Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=huawei.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 smtp3.osuosl.org (Postfix) with ESMTP id ABAA46061B; Fri, 2 Apr 2021 03:41:24 +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 HL2Eq5urzYDH; Fri, 2 Apr 2021 03:41:23 +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 5A29360905; Fri, 2 Apr 2021 03:41:23 +0000 (UTC) Received: from lf-lists.osuosl.org (localhost [127.0.0.1]) by lists.linuxfoundation.org (Postfix) with ESMTP id 28311C000B; Fri, 2 Apr 2021 03:41:23 +0000 (UTC) Received: from smtp1.osuosl.org (smtp1.osuosl.org [IPv6:2605:bc80:3010::138]) by lists.linuxfoundation.org (Postfix) with ESMTP id BACF1C000A for ; Fri, 2 Apr 2021 03:41:21 +0000 (UTC) Received: from localhost (localhost [127.0.0.1]) by smtp1.osuosl.org (Postfix) with ESMTP id A19BB84C0F for ; Fri, 2 Apr 2021 03:41:21 +0000 (UTC) X-Virus-Scanned: amavisd-new at osuosl.org Received: from smtp1.osuosl.org ([127.0.0.1]) by localhost (smtp1.osuosl.org [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id GztpL2D3VkkN for ; Fri, 2 Apr 2021 03:41:20 +0000 (UTC) X-Greylist: domain auto-whitelisted by SQLgrey-1.8.0 Received: from szxga05-in.huawei.com (szxga05-in.huawei.com [45.249.212.191]) by smtp1.osuosl.org (Postfix) with ESMTPS id 1611384C0D for ; Fri, 2 Apr 2021 03:41:19 +0000 (UTC) Received: from DGGEMS406-HUB.china.huawei.com (unknown [172.30.72.60]) by szxga05-in.huawei.com (SkyGuard) with ESMTP id 4FBQkb4pJ0zNsD0; Fri, 2 Apr 2021 11:38:31 +0800 (CST) Received: from [10.174.151.207] (10.174.151.207) by DGGEMS406-HUB.china.huawei.com (10.3.19.206) with Microsoft SMTP Server id 14.3.498.0; Fri, 2 Apr 2021 11:41:05 +0800 Subject: Re: [PATCH] iommu/vt-d: Force to flush iotlb before creating superpage To: Lu Baolu , , References: <20210401071834.1639-1-longpeng2@huawei.com> From: "Longpeng (Mike, Cloud Infrastructure Service Product Dept.)" Message-ID: Date: Fri, 2 Apr 2021 11:41:04 +0800 User-Agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:68.0) Gecko/20100101 Thunderbird/68.10.0 MIME-Version: 1.0 In-Reply-To: X-Originating-IP: [10.174.151.207] X-CFilter-Loop: Reflected Cc: Kevin Tian , David Woodhouse , stable@vger.kernel.org, Alex Williamson , Gonglei 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="utf-8" Content-Transfer-Encoding: base64 Errors-To: iommu-bounces@lists.linux-foundation.org Sender: "iommu" SGkgQmFvbHUsCgrlnKggMjAyMS80LzIgMTE6MDYsIEx1IEJhb2x1IOWGmemBkzoKPiBIaSBMb25n cGVuZywKPiAKPiBPbiA0LzEvMjEgMzoxOCBQTSwgTG9uZ3BlbmcoTWlrZSkgd3JvdGU6Cj4+IFRo ZSB0cmFuc2xhdGlvbiBjYWNoZXMgbWF5IHByZXNlcnZlIG9ic29sZXRlIGRhdGEgd2hlbiB0aGUK Pj4gbWFwcGluZyBzaXplIGlzIGNoYW5nZWQsIHN1cHBvc2UgdGhlIGZvbGxvd2luZyBzZXF1ZW5j 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