17b994177SLongfang LiuWhat: /sys/kernel/debug/vfio 27b994177SLongfang LiuDate: December 2023 37b994177SLongfang LiuKernelVersion: 6.8 47b994177SLongfang LiuContact: Longfang Liu <liulongfang@huawei.com> 57b994177SLongfang LiuDescription: This debugfs file directory is used for debugging 67b994177SLongfang Liu of vfio devices, it's a common directory for all vfio devices. 77b994177SLongfang Liu Vfio core will create a device subdirectory under this 87b994177SLongfang Liu directory. 97b994177SLongfang Liu 107b994177SLongfang LiuWhat: /sys/kernel/debug/vfio/<device>/migration 117b994177SLongfang LiuDate: December 2023 127b994177SLongfang LiuKernelVersion: 6.8 137b994177SLongfang LiuContact: Longfang Liu <liulongfang@huawei.com> 147b994177SLongfang LiuDescription: This debugfs file directory is used for debugging 157b994177SLongfang Liu of vfio devices that support live migration. 167b994177SLongfang Liu The debugfs of each vfio device that supports live migration 177b994177SLongfang Liu could be created under this directory. 187b994177SLongfang Liu 197b994177SLongfang LiuWhat: /sys/kernel/debug/vfio/<device>/migration/state 207b994177SLongfang LiuDate: December 2023 217b994177SLongfang LiuKernelVersion: 6.8 227b994177SLongfang LiuContact: Longfang Liu <liulongfang@huawei.com> 237b994177SLongfang LiuDescription: Read the live migration status of the vfio device. 247b994177SLongfang Liu The contents of the state file reflects the migration state 257b994177SLongfang Liu relative to those defined in the vfio_device_mig_state enum 26*451bb963SCédric Le Goater 27*451bb963SCédric Le GoaterWhat: /sys/kernel/debug/vfio/<device>/migration/features 28*451bb963SCédric Le GoaterDate: Oct 2025 29*451bb963SCédric Le GoaterKernelVersion: 6.18 30*451bb963SCédric Le GoaterContact: Cédric Le Goater <clg@redhat.com> 31*451bb963SCédric Le GoaterDescription: Read the migration features of the vfio device. 32