Andi Kleen <[EMAIL PROTECTED]> writes: > [EMAIL PROTECTED] (Eric W. Biederman) writes: >> >> Do you know what code had problems having _PAGE_NX set. >> What are we doing with early_ioremap the requires execute >> permissions. It doesn't sound right that we would need >> this. > > The early EM64T CPUs didn't support NX and would GPF when > they hit the bit. That is why you always need to mask > with __supported_pte_mask when using _PAGE_NX.
Ok. Thanks. That explains that it. The NX bit itself causes the GPF not someone trying to execute data on a page. Eric _______________________________________________ fastboot mailing list [email protected] https://lists.osdl.org/mailman/listinfo/fastboot
