On Tue, Jun 04, 2019 at 10:10:22PM +0000, Xing, Cedric wrote: > A bit off topic here. This mmap()/mprotect() discussion reminds me a > question (guess for Jarkko): Now that vma->vm_file->private_data keeps > a pointer to the enclave, why do we store it again in vma->vm_private? > It isn't a big deal but non-NULL vm_private does prevent mprotect() > from merging adjacent VMAs. Same semantics as with a regular mmap i.e. you can close the file and still use the mapping. /Jarkko
