On Sun, Mar 06, 2022 at 04:15:33AM +0200, Jarkko Sakkinen wrote: > Sometimes you might want to use MAP_POPULATE to ask a device driver to > initialize the device memory in some specific manner. SGX driver can use > this to request more memory by issuing ENCLS[EAUG] x86 opcode for each > page in the address range. > > Add f_ops->populate() with the same parameters as f_ops->mmap() and make > it conditionally called inside call_mmap(). Update call sites > accodingly. Your device driver has a ->mmap operation. Why does it need another one? More explanation required here.
