On 2023/10/30 14:51, Cédric Le Goater write: > 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 ? > It is also good to add a separate patch. Thanks, Longfang. > Anyhow, > > Reviewed-by: Cédric Le Goater <clg@xxxxxxxxxx> > > Thanks, > > C. > > >> >> Signed-off-by: Longfang Liu <liulongfang@xxxxxxxxxx> >> --- >> 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@xxxxxxxxxx> >> +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@xxxxxxxxxx> >> +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@xxxxxxxxxx> >> +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@xxxxxxxxxxxxxxx >> 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 > > . >
