On 2023/2/17 16:48, Longfang Liu 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 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
>
Hi Alex:
please help to review this patchset.
thanks.
Longfang.