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SubjectRe: [PATCH v18 2/2] Documentation: add debugfs description for vfio
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On 10/28/23 09:54, Longfang Liu wrote:
> 1.Add an debugfs document description file to help users understand
> how to use the accelerator live migration driver's debugfs.
> 2.Update the file paths that need to be maintained in MAINTAINERS

Should we have 2 patches instead ?

Anyhow,

Reviewed-by: Cédric Le Goater <clg@redhat.com>

Thanks,

C.


>
> Signed-off-by: Longfang Liu <liulongfang@huawei.com>
> ---
> Documentation/ABI/testing/debugfs-vfio | 25 +++++++++++++++++++++++++
> MAINTAINERS | 1 +
> 2 files changed, 26 insertions(+)
> create mode 100644 Documentation/ABI/testing/debugfs-vfio
>
> diff --git a/Documentation/ABI/testing/debugfs-vfio b/Documentation/ABI/testing/debugfs-vfio
> new file mode 100644
> index 000000000000..445e9f58f924
> --- /dev/null
> +++ b/Documentation/ABI/testing/debugfs-vfio
> @@ -0,0 +1,25 @@
> +What: /sys/kernel/debug/vfio
> +Date: Oct 2023
> +KernelVersion: 6.7
> +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: Oct 2023
> +KernelVersion: 6.7
> +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: Oct 2023
> +KernelVersion: 6.7
> +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
> diff --git a/MAINTAINERS b/MAINTAINERS
> index b19995690904..a6be3b4219c7 100644
> --- a/MAINTAINERS
> +++ b/MAINTAINERS
> @@ -22591,6 +22591,7 @@ L: kvm@vger.kernel.org
> S: Maintained
> T: git https://github.com/awilliam/linux-vfio.git
> F: Documentation/ABI/testing/sysfs-devices-vfio-dev
> +F: Documentation/ABI/testing/debugfs-vfio
> F: Documentation/driver-api/vfio.rst
> F: drivers/vfio/
> F: include/linux/vfio.h

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