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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 9148AC4332F for ; Sat, 17 Dec 2022 06:34:17 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229851AbiLQGeP (ORCPT ); Sat, 17 Dec 2022 01:34:15 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:47558 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229789AbiLQGeK (ORCPT ); Sat, 17 Dec 2022 01:34:10 -0500 Received: from szxga02-in.huawei.com (szxga02-in.huawei.com [45.249.212.188]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 5CF0222BF8 for ; Fri, 16 Dec 2022 22:34:06 -0800 (PST) Received: from kwepemm600005.china.huawei.com (unknown [172.30.72.54]) by szxga02-in.huawei.com (SkyGuard) with ESMTP id 4NYx3t3L4CzRq7C; Sat, 17 Dec 2022 14:32:58 +0800 (CST) Received: from huawei.com (10.67.164.66) by kwepemm600005.china.huawei.com (7.193.23.191) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2375.34; Sat, 17 Dec 2022 14:34:03 +0800 From: Longfang Liu To: , , , CC: , , , Subject: [PATCH v5 0/5] add debugfs to migration driver Date: Sat, 17 Dec 2022 14:32:43 +0800 Message-ID: <20221217063248.6735-1-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: [10.67.164.66] X-ClientProxiedBy: dggems704-chm.china.huawei.com (10.3.19.181) To kwepemm600005.china.huawei.com (7.193.23.191) X-CFilter-Loop: Reflected Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Add a debugfs function to the migration driver in VFIO to provide a step-by-step test function for the migration driver. When the execution of live migration fails, the user can view the status and data during the migration process separately from the source and the destination, which is convenient for users to analyze and locate problems. 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 (5): vfio/migration: Add debugfs to live migration driver hisi_acc_vfio_pci: extract public functions for container_of hisi_acc_vfio_pci: register debugfs for hisilicon migration driver Documentation: add debugfs description for hisi_acc_vfio_pci vfio: update live migration device status .../ABI/testing/debugfs-hisi-migration | 32 ++ drivers/vfio/pci/Makefile | 4 + .../vfio/pci/hisilicon/hisi_acc_vfio_pci.c | 300 +++++++++++++++++- .../vfio/pci/hisilicon/hisi_acc_vfio_pci.h | 11 + drivers/vfio/pci/mlx5/main.c | 3 + drivers/vfio/pci/vfio_pci_core.c | 3 + drivers/vfio/pci/vfio_pci_debugfs.c | 76 +++++ drivers/vfio/pci/vfio_pci_debugfs.h | 30 ++ include/linux/vfio.h | 6 + 9 files changed, 455 insertions(+), 10 deletions(-) create mode 100644 Documentation/ABI/testing/debugfs-hisi-migration create mode 100644 drivers/vfio/pci/vfio_pci_debugfs.c create mode 100644 drivers/vfio/pci/vfio_pci_debugfs.h -- 2.24.0