On Mon, Apr 27, 2020 at 09:25:58AM -0700, Dave Jiang wrote: > > Also to avoid duplication, ie idxd proposes to have a char dev with a > > normal kernel driver interface and then an in-kernel emulated MMIO BAR > > version of that same capability for VFIO consumption. > > The char dev interface serves user apps on host (which we will deprecate and > move to the UACCE framework in near future). The point is the char dev or UACCE framework should provide enough capability to implement the emulation in user space. Jason