> If the server could install the > mapping directly into the user's task, that would probably be better for > performance
Why? Not only would this require a system trap, but there are many trust issues which you would need to resolve. Anyway, pager_memcpy only uses memcpy (as opposed to the far more efficient vm_map) for unaligned and non-full page reads and writes. > (is that how it will be done in L4?), When issuing a receive ipc (or send and receive ipc), the client provides a receive window. The server returns an fpage which the kernel installs into the receive window. _______________________________________________ Help-hurd mailing list [EMAIL PROTECTED] http://mail.gnu.org/mailman/listinfo/help-hurd
