linux-arm.git - Russell King's ARM Linux kernel tree

Age	Commit message (Collapse)	Author
2016-05-13	MIPS: Kernel: Implement KASLR using CONFIG_RELOCATABLE	Matt Redfearn
	This patch adds KASLR to the MIPS kernel. Entropy is derived from the banner, which will change every build and random_get_entropy() which should provide additional runtime entropy. Additionally the bootloader may pass entropy via the /chosen/kaslr-seed node in device tree. The kernel is relocated by up to RANDOMIZE_BASE_MAX_OFFSET bytes from its link address (PHYSICAL_START). Because relocation happens so early in the kernel boot, the amount of physical memory has not yet been determined. This means the only way to limit relocation within the available memory is via Kconfig. Signed-off-by: Matt Redfearn <matt.redfearn@imgtec.com> Cc: linux-mips@linux-mips.org Cc: kernel-hardening@lists.openwall.com Cc: linux-kernel@vger.kernel.org Patchwork: https://patchwork.linux-mips.org/patch/12990/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2016-05-13	MIPS: Kernel: Add relocate.c	Matt Redfearn
	arch/mips/kernel/relocate.c contains the functions necessary to relocate the kernel elsewhere in memory The kernel makes a copy of itself at the new address. It uses the relocation table inserted by the relocs tool to fix symbol references within the new image. If copy/relocation is sucessful then the entry point of the new kernel is returned, otherwise fall back to starting the kernel in place. Signed-off-by: Matt Redfearn <matt.redfearn@imgtec.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: James Hogan <james.hogan@imgtec.com> Cc: Paul Burton <paul.burton@imgtec.com> Cc: linux-mips@linux-mips.org Cc: kernel-hardening@lists.openwall.com Cc: linux-kernel@vger.kernel.org Patchwork: https://patchwork.linux-mips.org/patch/12985/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>