linux-kernel - [PATCH v15 0/2] add debugfs to migration driver

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Date:   Fri, 1 Sep 2023 10:36:04 +0800
From:   liulongfang <liulongfang@...wei.com>
To:     <alex.williamson@...hat.com>, <jgg@...dia.com>,
        <shameerali.kolothum.thodi@...wei.com>,
        <jonathan.cameron@...wei.com>
CC:     <bcreeley@....com>, <kvm@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>, <linuxarm@...neuler.org>,
        <liulongfang@...wei.com>
Subject: [PATCH v15 0/2] add debugfs to migration driver

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