On Mon, Mar 07, 2022 at 03:29:35PM +0200, Jarkko Sakkinen wrote: > So what would you suggest to sort out the issue? I'm happy to go with > ioctl if nothing else is acceptable. PLenty of drivers treat all mmaps as if MAP_POPULATE was specified, typically by using (io_)remap_pfn_range. If there any reason to only optionally have the pre-fault semantics for sgx? If not this should be really simple. And if we have a real need for it to be optional we'll just need to find a sane way to pass that information to ->mmap.
