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=-1.0 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_PASS 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 A6056C43381 for ; Wed, 27 Feb 2019 03:25:55 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 762D0218CD for ; Wed, 27 Feb 2019 03:25:55 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729550AbfB0DZy (ORCPT ); Tue, 26 Feb 2019 22:25:54 -0500 Received: from szxga06-in.huawei.com ([45.249.212.32]:42010 "EHLO huawei.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1729128AbfB0DZx (ORCPT ); Tue, 26 Feb 2019 22:25:53 -0500 Received: from DGGEMS413-HUB.china.huawei.com (unknown [172.30.72.60]) by Forcepoint Email with ESMTP id A38B7C429708B956B1C0; Wed, 27 Feb 2019 11:25:51 +0800 (CST) Received: from [127.0.0.1] (10.177.23.164) by DGGEMS413-HUB.china.huawei.com (10.3.19.213) with Microsoft SMTP Server id 14.3.408.0; Wed, 27 Feb 2019 11:25:45 +0800 Subject: Re: [PATCH 0/5] iommu/arm-smmu-v3: make smmu can be enabled in kdump kernel To: Jean-Philippe Brucker , Robin Murphy , Will Deacon , Joerg Roedel , linux-arm-kernel , iommu , linux-kernel References: <20190219075443.17732-1-thunder.leizhen@huawei.com> From: "Leizhen (ThunderTown)" Message-ID: <5C760337.2070504@huawei.com> Date: Wed, 27 Feb 2019 11:25:43 +0800 User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:38.0) Gecko/20100101 Thunderbird/38.5.1 MIME-Version: 1.0 In-Reply-To: <20190219075443.17732-1-thunder.leizhen@huawei.com> Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit X-Originating-IP: [10.177.23.164] X-CFilter-Loop: Reflected Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi Will, Robin: Do you have time to review these patches? Hope you can give me some opinions. On 2019/2/19 15:54, Zhen Lei wrote: > This patch series include two parts: > 1. Patch1-2 use dummy STE tables with "ste abort" hardware feature to abort unexpected > devices accessing. For more details, see the description in patch 2. > 2. If the "ste abort" feature is not support, force the unexpected devices in the > secondary kernel to use the memory maps which it used in the first kernel. For more > details, see patch 5. > > > Zhen Lei (5): > iommu/arm-smmu-v3: make sure the stale caching of L1STD are invalid > iommu/arm-smmu-v3: make smmu can be enabled in kdump kernel > iommu/arm-smmu-v3: add macro xxx_SIZE to replace xxx_DWORDS shift > iommu/arm-smmu-v3: move arm_smmu_get_step_for_sid() a little ahead > iommu/arm-smmu-v3: workaround for STE abort in kdump kernel > > drivers/iommu/arm-smmu-v3.c | 243 +++++++++++++++++++++++++++++++++++--------- > 1 file changed, 194 insertions(+), 49 deletions(-) > -- Thanks! BestRegards