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| author | Longfang Liu <liulongfang@huawei.com> | 2023-11-06 15:22:24 +0800 |
|---|---|---|
| committer | Alex Williamson <alex.williamson@redhat.com> | 2023-12-04 14:29:39 -0700 |
| commit | 7b994177805f4ef05913c3f242840b262ecf2fa1 (patch) | |
| tree | 899122d143bf266fa5980964d92e3f2cb461fc26 /Documentation/ABI | |
| parent | 2202844e4468c7539dba0c0b06577c93735af952 (diff) | |
| download | linux-7b994177805f4ef05913c3f242840b262ecf2fa1.tar.gz | |
Documentation: add debugfs description for vfio
Add an debugfs document description file to help users understand
how to use the accelerator live migration driver's debugfs.
Signed-off-by: Longfang Liu <liulongfang@huawei.com>
Reviewed-by: Cédric Le Goater <clg@redhat.com>
Link: https://lore.kernel.org/r/20231106072225.28577-3-liulongfang@huawei.com
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
Diffstat (limited to 'Documentation/ABI')
| -rw-r--r-- | Documentation/ABI/testing/debugfs-vfio | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/Documentation/ABI/testing/debugfs-vfio b/Documentation/ABI/testing/debugfs-vfio new file mode 100644 index 00000000000000..90f7c262f59130 --- /dev/null +++ b/Documentation/ABI/testing/debugfs-vfio @@ -0,0 +1,25 @@ +What: /sys/kernel/debug/vfio +Date: December 2023 +KernelVersion: 6.8 +Contact: Longfang Liu <liulongfang@huawei.com> +Description: This debugfs file directory is used for debugging + of vfio devices, it's a common directory for all vfio devices. + Vfio core will create a device subdirectory under this + directory. + +What: /sys/kernel/debug/vfio/<device>/migration +Date: December 2023 +KernelVersion: 6.8 +Contact: Longfang Liu <liulongfang@huawei.com> +Description: This debugfs file directory is used for debugging + of vfio devices that support live migration. + The debugfs of each vfio device that supports live migration + could be created under this directory. + +What: /sys/kernel/debug/vfio/<device>/migration/state +Date: December 2023 +KernelVersion: 6.8 +Contact: Longfang Liu <liulongfang@huawei.com> +Description: Read the live migration status of the vfio device. + The contents of the state file reflects the migration state + relative to those defined in the vfio_device_mig_state enum |