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[2620:137:e000::3:6]) by mx.google.com with ESMTPS id s201-20020a632cd2000000b005aa998ea599si1175128pgs.510.2023.10.13.02.07.53 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 13 Oct 2023 02:07:54 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::3:6 as permitted sender) client-ip=2620:137:e000::3:6; Authentication-Results: mx.google.com; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::3:6 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=fail (p=QUARANTINE sp=QUARANTINE dis=NONE) header.from=huawei.com Received: from out1.vger.email (depot.vger.email [IPv6:2620:137:e000::3:0]) by pete.vger.email (Postfix) with ESMTP id BE8E182069D0; Fri, 13 Oct 2023 02:07:51 -0700 (PDT) X-Virus-Status: Clean X-Virus-Scanned: clamav-milter 0.103.10 at pete.vger.email Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230374AbjJMJHl (ORCPT + 99 others); Fri, 13 Oct 2023 05:07:41 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:44620 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230386AbjJMJHi (ORCPT ); Fri, 13 Oct 2023 05:07:38 -0400 Received: from szxga03-in.huawei.com (szxga03-in.huawei.com [45.249.212.189]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 2412795; Fri, 13 Oct 2023 02:07:34 -0700 (PDT) Received: from kwepemm000005.china.huawei.com (unknown [172.30.72.57]) by szxga03-in.huawei.com (SkyGuard) with ESMTP id 4S6LC80xHzz1kv9N; Fri, 13 Oct 2023 17:03:32 +0800 (CST) Received: from huawei.com (10.50.163.32) by kwepemm000005.china.huawei.com (7.193.23.27) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2507.31; Fri, 13 Oct 2023 17:07:31 +0800 From: Longfang Liu To: , , , CC: , , , , Subject: [PATCH v17 0/2] add debugfs to migration driver Date: Fri, 13 Oct 2023 17:04:39 +0800 Message-ID: <20231013090441.36417-1-liulongfang@huawei.com> X-Mailer: git-send-email 2.24.0 MIME-Version: 1.0 Content-Transfer-Encoding: 7BIT Content-Type: text/plain; charset=US-ASCII X-Originating-IP: [10.50.163.32] X-ClientProxiedBy: dggems706-chm.china.huawei.com (10.3.19.183) To kwepemm000005.china.huawei.com (7.193.23.27) X-CFilter-Loop: Reflected X-Spam-Status: No, score=-0.8 required=5.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS autolearn=unavailable autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on pete.vger.email Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org X-Greylist: Sender passed SPF test, not delayed by milter-greylist-4.6.4 (pete.vger.email [0.0.0.0]); Fri, 13 Oct 2023 02:07:51 -0700 (PDT) Add a debugfs function to the migration driver in VFIO to provide a step-by-step debugfs information for the migration driver. Changes v16 -> v17 Add separate VFIO_DEBUGFS Kconfig entries. Changes v15 -> v16 Update the calling order of functions to maintain symmetry Changes v14 -> v15 Update the output status value of live migration. Changes v13 -> v14 Split the patchset and keep the vfio debugfs frame. Changes v12 -> v13 Solve the problem of open and close competition to debugfs. Changes v11 -> v12 Update loading conditions of vfio debugfs. Changes v10 -> v11 Delete the device restore function in debugfs. Changes v9 -> v10 Update the debugfs file of the live migration driver. Changes v8 -> v9 Update the debugfs directory structure of vfio. Changes v7 -> v8 Add support for platform devices. Changes v6 -> v7 Fix some code style issues. Changes v5 -> v6 Control the creation of debugfs through the CONFIG_DEBUG_FS. Changes v4 -> v5 Remove the newly added vfio_migration_ops and use seq_printf to optimize the implementation of debugfs. Changes v3 -> v4 Change the migration_debug_operate interface to debug_root file. Changes v2 -> v3 Extend the debugfs function from hisilicon device to vfio. Changes v1 -> v2 Change the registration method of root_debugfs to register with module initialization. Longfang Liu (2): vfio/migration: Add debugfs to live migration driver Documentation: add debugfs description for vfio Documentation/ABI/testing/debugfs-vfio | 25 +++++++ MAINTAINERS | 1 + drivers/vfio/Kconfig | 10 +++ drivers/vfio/Makefile | 1 + drivers/vfio/debugfs.c | 90 ++++++++++++++++++++++++++ drivers/vfio/vfio.h | 14 ++++ drivers/vfio/vfio_main.c | 14 +++- include/linux/vfio.h | 7 ++ include/uapi/linux/vfio.h | 1 + 9 files changed, 161 insertions(+), 2 deletions(-) create mode 100644 Documentation/ABI/testing/debugfs-vfio create mode 100644 drivers/vfio/debugfs.c -- 2.24.0