From: Christoph Hellwig > Sent: 07 March 2022 15:57 > > 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. Is there any space in vma->vm_flags ? That would be better than an extra argument or function. David - Registered Address Lakeside, Bramley Road, Mount Farm, Milton Keynes, MK1 1PT, UK Registration No: 1397386 (Wales)
