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=-10.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,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 3C7D6C47080 for ; Tue, 1 Jun 2021 01:16:47 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 1F3946124B for ; Tue, 1 Jun 2021 01:16:47 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232448AbhFABS0 (ORCPT ); Mon, 31 May 2021 21:18:26 -0400 Received: from szxga03-in.huawei.com ([45.249.212.189]:3358 "EHLO szxga03-in.huawei.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232081AbhFABS0 (ORCPT ); Mon, 31 May 2021 21:18:26 -0400 Received: from dggemv703-chm.china.huawei.com (unknown [172.30.72.53]) by szxga03-in.huawei.com (SkyGuard) with ESMTP id 4FvDg11D2Cz678n; Tue, 1 Jun 2021 09:13:01 +0800 (CST) Received: from dggpemm000003.china.huawei.com (7.185.36.128) by dggemv703-chm.china.huawei.com (10.3.19.46) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2176.2; Tue, 1 Jun 2021 09:16:44 +0800 Received: from [10.174.187.224] (10.174.187.224) by dggpemm000003.china.huawei.com (7.185.36.128) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2176.2; Tue, 1 Jun 2021 09:16:43 +0800 Subject: Re: [PATCH v5 0/2] kvm/arm64: Try stage2 block mapping for host device MMIO To: Marc Zyngier References: <20210507110322.23348-1-zhukeqian1@huawei.com> CC: , , , From: Keqian Zhu Message-ID: Date: Tue, 1 Jun 2021 09:16:43 +0800 User-Agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:45.0) Gecko/20100101 Thunderbird/45.7.1 MIME-Version: 1.0 In-Reply-To: <20210507110322.23348-1-zhukeqian1@huawei.com> Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit X-Originating-IP: [10.174.187.224] X-ClientProxiedBy: dggems701-chm.china.huawei.com (10.3.19.178) To dggpemm000003.china.huawei.com (7.185.36.128) X-CFilter-Loop: Reflected Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org Hi Marc, Kindly remind. :) BRs, Keqian On 2021/5/7 19:03, Keqian Zhu wrote: > Hi Marc, > > This rebases to newest mainline kernel. > > Thanks, > Keqian > > > We have two pathes to build stage2 mapping for MMIO regions. > > Create time's path and stage2 fault path. > > Patch#1 removes the creation time's mapping of MMIO regions > Patch#2 tries stage2 block mapping for host device MMIO at fault path > > Changelog: > > v5: > - Rebase to newest mainline. > > v4: > - use get_vma_page_shift() handle all cases. (Marc) > - get rid of force_pte for device mapping. (Marc) > > v3: > - Do not need to check memslot boundary in device_rough_page_shift(). (Marc) > > > Keqian Zhu (2): > kvm/arm64: Remove the creation time's mapping of MMIO regions > kvm/arm64: Try stage2 block mapping for host device MMIO > > arch/arm64/kvm/mmu.c | 99 ++++++++++++++++++++++++-------------------- > 1 file changed, 54 insertions(+), 45 deletions(-) >