From 7b994177805f4ef05913c3f242840b262ecf2fa1 Mon Sep 17 00:00:00 2001 From: Longfang Liu Date: Mon, 6 Nov 2023 15:22:24 +0800 Subject: Documentation: add debugfs description for vfio MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit 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 Reviewed-by: Cédric Le Goater Link: https://lore.kernel.org/r/20231106072225.28577-3-liulongfang@huawei.com Signed-off-by: Alex Williamson --- Documentation/ABI/testing/debugfs-vfio | 25 +++++++++++++++++++++++++ 1 file changed, 25 insertions(+) create mode 100644 Documentation/ABI/testing/debugfs-vfio (limited to 'Documentation/ABI') diff --git a/Documentation/ABI/testing/debugfs-vfio b/Documentation/ABI/testing/debugfs-vfio new file mode 100644 index 000000000000..90f7c262f591 --- /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 +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//migration +Date: December 2023 +KernelVersion: 6.8 +Contact: Longfang Liu +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//migration/state +Date: December 2023 +KernelVersion: 6.8 +Contact: Longfang Liu +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 -- cgit