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    Subject[PATCH v8 0/5] add debugfs to migration driver
    Date
    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 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 (5):
    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
    vfio: update live migration device status

    .../ABI/testing/debugfs-hisi-migration | 28 ++
    Documentation/ABI/testing/debugfs-vfio | 17 +
    drivers/vfio/Makefile | 2 +-
    .../vfio/pci/hisilicon/hisi_acc_vfio_pci.c | 306 +++++++++++++++++-
    .../vfio/pci/hisilicon/hisi_acc_vfio_pci.h | 11 +
    drivers/vfio/pci/mlx5/main.c | 3 +
    drivers/vfio/vfio.h | 14 +
    drivers/vfio/vfio_debugfs.c | 82 +++++
    drivers/vfio/vfio_main.c | 5 +
    include/linux/vfio.h | 8 +
    10 files changed, 465 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

    --
    2.24.0

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