3 commits

Author	SHA1	Message	Date
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
Jonas 'Sortie' Termansen	a099f82890	Update kernel memory management to current coding conventions.	2014-03-01 14:37:40 +01:00
Jonas 'Sortie' Termansen	98a87fa1e5	Rename Sortix kernel directory to kernel.	2014-03-01 14:37:39 +01:00

Renamed from sortix/x86-family/memorymanagement.h (Browse further)