From patchwork Tue Apr 2 03:24:28 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Longfang Liu X-Patchwork-Id: 13613300 Received: from szxga03-in.huawei.com (szxga03-in.huawei.com [45.249.212.189]) (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 B0C891759E; Tue, 2 Apr 2024 03:29:20 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=45.249.212.189 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1712028563; cv=none; b=mC/IiEQyhggewA79ZtCjHRYjKJcgD7spYjVFH/VlqhSmVZ3JwI/BT0ov6ypQn+xKfhxB6eh9AwpTvpqUOHSrBhYydDJDrjHTdCx7IR0CxxRWFLIKzbUKiJGH9Hdyupk99PYg/9MAkcVNLtqZT6qptLfqR03zfxdEYjTsasizNsE= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1712028563; c=relaxed/simple; bh=djyVy8+fPyGzZPzPF4SjSGy7AW26La7QUjqbjM1zzqc=; h=From:To:CC:Subject:Date:Message-ID:MIME-Version:Content-Type; b=SrPzxzmayTmzYzXLV1Yvakv/tBUjZS5027rGlayd5o5DFqTCpPh79bqJxqKMzsWn60TQpOxeFvmUfZrdLAFWR7BMsj2GaZwt7NsCERovyVUOx7zlE8r0i/iXKcS3BC7pRMI7zSj5ihfBPWkMyE9ic+q4GfCApjwMca1XR8Gyv2Q= 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=45.249.212.189 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 [172.19.88.194]) by szxga03-in.huawei.com (SkyGuard) with ESMTP id 4V7tbf6bY5zcbDt; Tue, 2 Apr 2024 11:27:10 +0800 (CST) Received: from kwepemm600005.china.huawei.com (unknown [7.193.23.191]) by mail.maildlp.com (Postfix) with ESMTPS id 05A45140154; Tue, 2 Apr 2024 11:29:18 +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 15.1.2507.35; Tue, 2 Apr 2024 11:29:17 +0800 From: Longfang Liu To: , , , CC: , , , Subject: [PATCH v4 0/4] add debugfs to hisilicon migration driver Date: Tue, 2 Apr 2024 11:24:28 +0800 Message-ID: <20240402032432.41004-1-liulongfang@huawei.com> X-Mailer: git-send-email 2.24.0 Precedence: bulk X-Mailing-List: kvm@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-ClientProxiedBy: dggems703-chm.china.huawei.com (10.3.19.180) 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 v3 -> v4 Rebased on kernel6.9 Changes v2 -> 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 | 34 +++ MAINTAINERS | 1 + .../vfio/pci/hisilicon/hisi_acc_vfio_pci.c | 281 ++++++++++++++++-- .../vfio/pci/hisilicon/hisi_acc_vfio_pci.h | 14 + 4 files changed, 298 insertions(+), 32 deletions(-) create mode 100644 Documentation/ABI/testing/debugfs-hisi-migration