From patchwork Thu Mar 7 06:03:49 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Longfang Liu X-Patchwork-Id: 13585101 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 BA62F1BC56; Thu, 7 Mar 2024 06:08:24 +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=1709791709; cv=none; b=s2GMTpqqsf1Hiy5e/QTmkBsVASF1poZnRvyReaepu4N+h/2k5CCrM5J6NgE+oCvYzQZYsdlXtdMNN9rS7kvUDq3XVMv8RK7q6ahUNEoOMRy/ktb0dk/Yp+4Af0RZ/IDunK3ql2nogGMouO+3AkzmK1ylH99xb7Nci8PGDrUmHOs= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1709791709; c=relaxed/simple; bh=uZnVujjLp3je8R0QvccPWIRlHY3nzJXYfC0KxKP4/Ec=; h=From:To:CC:Subject:Date:Message-ID:MIME-Version:Content-Type; b=JmAPjLdLe2rX1iPb49pO656Q8imxvYCNccSmOyeVs6x29k04tiOUeOyoOLlnyZt7/xngFUkpXRSutTc5AiyRDn0ERBezb2YC8mVbp7DKR7eCG2rwtgQuJcv/zwzl3d9paPBm7c/CutzL+hZ7CJwzMpLxdJ98SJDzDIaGCGEDY5Q= 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 4TqzMl3qg2z1xqN1; Thu, 7 Mar 2024 14:06:43 +0800 (CST) Received: from kwepemm600005.china.huawei.com (unknown [7.193.23.191]) by mail.maildlp.com (Postfix) with ESMTPS id 1A2F51A016C; Thu, 7 Mar 2024 14:08:22 +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; Thu, 7 Mar 2024 14:08:21 +0800 From: Longfang Liu To: , , , CC: , , , Subject: [PATCH v3 0/4] add debugfs to hisilicon migration driver Date: Thu, 7 Mar 2024 14:03:49 +0800 Message-ID: <20240307060353.16095-1-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: 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 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 | 280 +++++++++++++++--- .../vfio/pci/hisilicon/hisi_acc_vfio_pci.h | 14 + 4 files changed, 294 insertions(+), 35 deletions(-) create mode 100644 Documentation/ABI/testing/debugfs-hisi-migration