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Message-ID: <9c3f7b5c-b0c0-2c74-e32f-68fd3e1deee9@huawei.com>
Date:   Mon, 10 Jul 2023 20:12:46 +0800
From:   liulongfang <liulongfang@...wei.com>
To:     <alex.williamson@...hat.com>, <jgg@...dia.com>,
        <shameerali.kolothum.thodi@...wei.com>,
        <jonathan.cameron@...wei.com>
CC:     <cohuck@...hat.com>, <linux-kernel@...r.kernel.org>,
        <linuxarm@...neuler.org>
Subject: Re: [PATCH v11 0/4] add debugfs to migration driver

On 2023/6/30 17:24, liulongfang wrote:
> Add a debugfs function to the migration driver in VFIO to provide
> a step-by-step test function for the migration driver.
> 
> 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 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 (4):
>   vfio/migration: Add debugfs to live migration driver
>   hisi_acc_vfio_pci: extract public functions for container_of
>   hisi_acc_vfio_pci: register debugfs for hisilicon migration driver
>   Documentation: add debugfs description for vfio
> 
>  .../ABI/testing/debugfs-hisi-migration        |  32 +++
>  Documentation/ABI/testing/debugfs-vfio        |  25 +++
>  MAINTAINERS                                   |   2 +
>  drivers/vfio/Makefile                         |   1 +
>  .../vfio/pci/hisilicon/hisi_acc_vfio_pci.c    | 203 +++++++++++++++++-
>  .../vfio/pci/hisilicon/hisi_acc_vfio_pci.h    |  11 +
>  drivers/vfio/vfio.h                           |  14 ++
>  drivers/vfio/vfio_debugfs.c                   |  78 +++++++
>  drivers/vfio/vfio_main.c                      |   9 +-
>  include/linux/vfio.h                          |   7 +
>  10 files changed, 371 insertions(+), 11 deletions(-)
>  create mode 100644 Documentation/ABI/testing/debugfs-hisi-migration
>  create mode 100644 Documentation/ABI/testing/debugfs-vfio
>  create mode 100644 drivers/vfio/vfio_debugfs.c
> 

Hi, Alex
Can you help me to review these patches ?

Thanks,
Longfang.

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