Received: by 2002:a05:7412:3210:b0:e2:908c:2ebd with SMTP id eu16csp791306rdb; Fri, 1 Sep 2023 04:32:41 -0700 (PDT) X-Google-Smtp-Source: AGHT+IF6AiISbENJm6gl7dfzncBWYk3ew1ntgWMPTByGqzgR5Wx1p6B9vfTfYIVXHxLZ6oTb6nsw X-Received: by 2002:a05:6a00:895:b0:68b:ed83:9005 with SMTP id q21-20020a056a00089500b0068bed839005mr2386070pfj.28.1693567960768; Fri, 01 Sep 2023 04:32:40 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1693567960; cv=none; d=google.com; s=arc-20160816; b=x0hv1+/kiCcZYmgtf8ZXJZMra94vXjFWDZ/HSqcbw5jv3vQzRdRX+P6MICIs5RUyLy buLKtf/IHGDVLI3/gcnTLaoULQ4lJQYVIxKlDmLxi1oQmITTBrMo82IeRV+i3QRxvp2m K1zbsbQM5cmnRaBH4Y5o1TLaxdfyyLu9FqbipO9+Z9E/aoJeaZEiCDFwUkPbdy6CyXNi MJ6Mdg9e4lYpG6rjB/qQmRwSuLubzSadNstIRZUKhjp/pQJYanFZkbJ+OVPUW+zmm99q K+4nWMWe6BAXyU4vL1Ng6NFTcxeRmiW99AtWSI3ws0Z9NtiKb7RRqJbP0MJR3By0G0Ks 1JcA== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:content-transfer-encoding:mime-version :message-id:date:subject:cc:to:from; bh=Vazj01X2EDQ9xRNQFa3oMKDSLabqLS9GgpZwvAbQ2TM=; fh=6RjYAQ34uDeYKm0rLOoNcFiQikSk6+SaiM0Axnq7aoY=; b=Sr5QpHzAw4h4FHffKeTOrvnhVJr5k8GvBG0TBRmCzzpFNG/Tfy+ed7zJcodKDriGzM 6H/dUZMaWRikxD/0ts7g3pvCChNQMG1h2GM7HzfuwA9ZQke/k1jXzG43DV4CJUUlQ2GL zWbeJ3bOsis3BCOLzGlUXr/K9b2KSVpQjIqIIw7OfiXXnjbwekZtXNtava5QH1PFnxJR RIH3JIXFg97VesNfrbvIbYbhdJgolJbRPc5sEPYyRm8KfMjU9LOj7xfa7HpCf1IhPpwO QU1tVtrmXxu9jpZ66/3Cv8TutYgabmbu0MO3SBXqMqL3ACQ04m3qLOECCmTerxUNL/cU kG6g== ARC-Authentication-Results: i=1; mx.google.com; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=fail (p=QUARANTINE sp=QUARANTINE dis=NONE) header.from=huawei.com Return-Path: Received: from out1.vger.email (out1.vger.email. [2620:137:e000::1:20]) by mx.google.com with ESMTP id u12-20020aa7838c000000b006871a42e1e5si2746636pfm.50.2023.09.01.04.32.26; Fri, 01 Sep 2023 04:32:40 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20; Authentication-Results: mx.google.com; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=fail (p=QUARANTINE sp=QUARANTINE dis=NONE) header.from=huawei.com Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1348141AbjIACip (ORCPT + 99 others); Thu, 31 Aug 2023 22:38:45 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:33298 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231431AbjIACio (ORCPT ); Thu, 31 Aug 2023 22:38:44 -0400 Received: from szxga08-in.huawei.com (szxga08-in.huawei.com [45.249.212.255]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 34894E6E; Thu, 31 Aug 2023 19:38:38 -0700 (PDT) Received: from kwepemm600005.china.huawei.com (unknown [172.30.72.56]) by szxga08-in.huawei.com (SkyGuard) with ESMTP id 4RcMcR3tP1z1L9L5; Fri, 1 Sep 2023 10:36:55 +0800 (CST) Received: from huawei.com (10.50.163.32) 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 15.1.2507.31; Fri, 1 Sep 2023 10:38:35 +0800 From: liulongfang To: , , , CC: , , , , Subject: [PATCH v15 0/2] add debugfs to migration driver Date: Fri, 1 Sep 2023 10:36:04 +0800 Message-ID: <20230901023606.47587-1-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: dggems705-chm.china.huawei.com (10.3.19.182) To kwepemm600005.china.huawei.com (7.193.23.191) X-CFilter-Loop: Reflected X-Spam-Status: No, score=-4.2 required=5.0 tests=BAYES_00,RCVD_IN_DNSWL_MED, SPF_HELO_NONE,SPF_PASS autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net 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 debugfs information for the migration driver. 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/Makefile | 1 + drivers/vfio/vfio.h | 14 +++++ drivers/vfio/vfio_debugfs.c | 80 ++++++++++++++++++++++++++ drivers/vfio/vfio_main.c | 5 +- include/linux/vfio.h | 7 +++ 7 files changed, 132 insertions(+), 1 deletion(-) create mode 100644 Documentation/ABI/testing/debugfs-vfio create mode 100644 drivers/vfio/vfio_debugfs.c -- 2.24.0