1 What: /sys/kernel/debug/vfio 1 What: /sys/kernel/debug/vfio
2 Date: December 2023 2 Date: December 2023
3 KernelVersion: 6.8 3 KernelVersion: 6.8
4 Contact: Longfang Liu <liulongfang@huawe 4 Contact: Longfang Liu <liulongfang@huawei.com>
5 Description: This debugfs file directory is 5 Description: This debugfs file directory is used for debugging
6 of vfio devices, it's a common 6 of vfio devices, it's a common directory for all vfio devices.
7 Vfio core will create a device 7 Vfio core will create a device subdirectory under this
8 directory. 8 directory.
9 9
10 What: /sys/kernel/debug/vfio/<device 10 What: /sys/kernel/debug/vfio/<device>/migration
11 Date: December 2023 11 Date: December 2023
12 KernelVersion: 6.8 12 KernelVersion: 6.8
13 Contact: Longfang Liu <liulongfang@huawe 13 Contact: Longfang Liu <liulongfang@huawei.com>
14 Description: This debugfs file directory is 14 Description: This debugfs file directory is used for debugging
15 of vfio devices that support l 15 of vfio devices that support live migration.
16 The debugfs of each vfio devic 16 The debugfs of each vfio device that supports live migration
17 could be created under this di 17 could be created under this directory.
18 18
19 What: /sys/kernel/debug/vfio/<device 19 What: /sys/kernel/debug/vfio/<device>/migration/state
20 Date: December 2023 20 Date: December 2023
21 KernelVersion: 6.8 21 KernelVersion: 6.8
22 Contact: Longfang Liu <liulongfang@huawe 22 Contact: Longfang Liu <liulongfang@huawei.com>
23 Description: Read the live migration status 23 Description: Read the live migration status of the vfio device.
24 The contents of the state file 24 The contents of the state file reflects the migration state
25 relative to those defined in t 25 relative to those defined in the vfio_device_mig_state enum
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