Jonas 'Sortie' Termansen 2e3d7c45af Add paging no-execute and write protection support. ... Enable the NX bit on x86_64 and set if not PROT_EXEC and enable the write protection mode (CR0.WP) that disables the default behavior where the kernel is able to write to read-only memory. Fix kernel broken assumptions it can access read-only memory and take care to never set PROT_KWRITE on user-space pages unless PROT_WRITE is also set, otherwise user-space will be able to write to read-only memory. This achieves X^W in the whole system except for the core kernel itself as it is currently don't know the purpose of pages when identity mapping the first 4 MiB.		2016-01-25 17:39:57 +01:00
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boot.S	Add paging no-execute and write protection support.	2016-01-25 17:39:57 +01:00
crti.S
crtn.S
interrupt.S	Fix x86 Alignment Check and Security Exception handlers.	2016-01-07 19:17:04 +01:00
kthread.S
memorymanagement.cpp	Initialize paging before KernelInit.	2015-08-21 21:25:00 +02:00
memorymanagement.h
syscall.S	Clear registers after system calls.	2015-08-26 16:29:18 +02:00