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vfio: Dump migration features under debugfs

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A debugfs directory was recently added for VFIO devices. Add a new
"features" file under the migration sub-directory to expose which
features the device supports.

Signed-off-by: Cédric Le Goater <clg@redhat.com>
Link: https://lore.kernel.org/r/20250918121928.1921871-1-clg@redhat.com
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
This commit is contained in:
Cédric Le Goater
2025-09-18 14:19:28 +02:00
committed by Alex Williamson
parent d14de5b925
commit 451bb96328
2 changed files with 25 additions and 0 deletions
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6
Documentation/ABI/testing/debugfs-vfio
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@@ -23,3 +23,9 @@ 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
What: /sys/kernel/debug/vfio/<device>/migration/features
Date: Oct 2025
KernelVersion: 6.18
Contact: Cédric Le Goater <clg@redhat.com>
Description: Read the migration features of the vfio device.