From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from szxga04-in.huawei.com (szxga04-in.huawei.com [45.249.212.190]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 048E41D86F1; Fri, 13 Sep 2024 10:01:39 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=45.249.212.190 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1726221702; cv=none; b=aHu32qF4Fv+OflpnBrGuZ5n0unfjALyU1kNTcbRAMCvnjeUtTOspH56awWIac7NYIbmYhWvzT5zRq7bKAl5c8El3DKK7/G3UZu1W/7YZoK3xquHLevXlEx1NjrI8lOFG3PF1QIofwy9z+CXhpJNLvG+zwGEHyzSU91hQFg5w+MQ= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1726221702; c=relaxed/simple; bh=YYvpzTPY2m18FxCbhJH/7tdTgRuRWqPZn75ucKrhD/E=; h=From:To:CC:Subject:Date:Message-ID:MIME-Version:Content-Type; b=cvIEbzytYskA7bpOUNPB3pGqkDV7M6KpSdiDvUQe/ANQbQb2QUCBqKGmxeqjMByq1+8F/Qol14e+PaWDMPBeMh1KsUzRZtPjq9926PHvpK95wUHkTfeRMasg8oTEDt2BjbdGA+/+O7tsC6L1JCNp+jt0IkKNocIbJrzSvhZohKo= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=huawei.com; spf=pass smtp.mailfrom=huawei.com; arc=none smtp.client-ip=45.249.212.190 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=huawei.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=huawei.com Received: from mail.maildlp.com (unknown [172.19.88.214]) by szxga04-in.huawei.com (SkyGuard) with ESMTP id 4X4qZT4Hmzz2CpWB; Fri, 13 Sep 2024 18:01:05 +0800 (CST) Received: from kwepemm600005.china.huawei.com (unknown [7.193.23.191]) by mail.maildlp.com (Postfix) with ESMTPS id 766951A016C; Fri, 13 Sep 2024 18:01:37 +0800 (CST) Received: from huawei.com (10.50.165.33) by kwepemm600005.china.huawei.com (7.193.23.191) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.1.2507.39; Fri, 13 Sep 2024 18:01:36 +0800 From: Longfang Liu To: , , , CC: , , , Subject: [PATCH v9 0/4] debugfs to hisilicon migration driver Date: Fri, 13 Sep 2024 17:54:58 +0800 Message-ID: <20240913095502.22940-1-liulongfang@huawei.com> X-Mailer: git-send-email 2.24.0 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Content-Type: text/plain X-ClientProxiedBy: dggems705-chm.china.huawei.com (10.3.19.182) To kwepemm600005.china.huawei.com (7.193.23.191) Add a debugfs function to the hisilicon migration driver in VFIO to provide intermediate state values and data during device migration. 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 v8 -> v9 Added device enable mutex Changes v7 -> v8 Delete unnecessary information Changes v6 -> v7 Remove redundant kernel error log printing and remove unrelated bugfix code Changes v5 -> v6 Modify log output calling error Changes v4 -> v5 Adjust the descriptioniptionbugfs file directory Changes v3 -> v4 Rebased on kernel6.9 Changes 2 -> v3 Solve debugfs serialization problem. Changes v1 -> v2 Solve the racy problem of io_base. Longfang Liu (4): hisi_acc_vfio_pci: extract public functions for container_of hisi_acc_vfio_pci: create subfunction for data reading hisi_acc_vfio_pci: register debugfs for hisilicon migration driver Documentation: add debugfs description for hisi migration .../ABI/testing/debugfs-hisi-migration | 25 ++ .../vfio/pci/hisilicon/hisi_acc_vfio_pci.c | 279 ++++++++++++++++-- .../vfio/pci/hisilicon/hisi_acc_vfio_pci.h | 7 + 3 files changed, 280 insertions(+), 31 deletions(-) create mode 100644 Documentation/ABI/testing/debugfs-hisi-migration -- 2.24.0