> I guess we will drop the automatic io access entirely? Yes, I think it was always a stupid feature.
> Can I/O permission violations be catched in userspace, by emulating the > io_emulate exception? Then I guess we can just let the default > implementation return an error anyway. I'm not really sure what you are asking here. > We have a global lock for all the iopb mess. Actually, I think after > removing all the user space TSS and IO port list stuff, it's only the > device<->io_port_t lookup, the task bitmap and the ktss manipulation that > needs to be locked (the ktss manipulation when updating the current tasks > permissions, not when being in a task switch). I am right now using the > global lock exclusively, though. gnumach is never going to have SMP support anyway, so it's all moot (and the macros you are using expand to empty). In oskit-mach, I think we should get rid of the lookup table and just hang the data directly off the device_t. _______________________________________________ Bug-hurd mailing list [EMAIL PROTECTED] http://mail.gnu.org/mailman/listinfo/bug-hurd
