On Fri, 9 Sep 2022 18:22:47 +0800 Kevin Tian <kevin.tian@xxxxxxxxx> wrote: > From: Yi Liu <yi.l.liu@xxxxxxxxx> > > and replace kref. With it a 'vfio-dev/vfioX' node is created under the > sysfs path of the parent, indicating the device is bound to a vfio > driver, e.g.: > > /sys/devices/pci0000\:6f/0000\:6f\:01.0/vfio-dev/vfio0 > > It is also a preparatory step toward adding cdev for supporting future > device-oriented uAPI. > > Add Documentation/ABI/testing/sysfs-devices-vfio-dev. > > Also take this chance to rename chardev 'vfio' to 'vfio-group' in > /proc/devices. What's the risk/reward here, is this just more aesthetically pleasing symmetry vs 'vfio-dev'? The char major number to name association in /proc/devices seems pretty obscure, but what due diligence have we done to make sure this doesn't break anyone? Thanks, Alex
