Path: blob/master/Documentation/ABI/testing/debugfs-hisi-migration
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What: /sys/kernel/debug/vfio/<device>/migration/hisi_acc/dev_data Date: Jan 2025 KernelVersion: 6.13 Contact: Longfang Liu <[email protected]> Description: Read the configuration data and some status data required for device live migration. These data include device status data, queue configuration data, some task configuration data and device attribute data. The output format of the data is defined by the live migration driver. What: /sys/kernel/debug/vfio/<device>/migration/hisi_acc/migf_data Date: Jan 2025 KernelVersion: 6.13 Contact: Longfang Liu <[email protected]> Description: Read the data from the last completed live migration. This data includes the same device status data as in "dev_data". The migf_data is the dev_data that is migrated. What: /sys/kernel/debug/vfio/<device>/migration/hisi_acc/cmd_state Date: Jan 2025 KernelVersion: 6.13 Contact: Longfang Liu <[email protected]> Description: Used to obtain the device command sending and receiving channel status. Returns failure or success logs based on the results.