Atish Patra 19a0086902 RISC-V: Protect all kernel sections including init early ... Currently, .init.text & .init.data are intermixed which makes it impossible apply different permissions to them. .init.data shouldn't need exec permissions while .init.text shouldn't have write permission. Moreover, the strict permission are only enforced /init starts. This leaves the kernel vulnerable from possible buggy built-in modules. Keep .init.text & .data in separate sections so that different permissions are applied to each section. Apply permissions to individual sections as early as possible. This improves the kernel protection under CONFIG_STRICT_KERNEL_RWX. We also need to restore the permissions for the entire _init section after it is freed so that those pages can be used for other purpose. Signed-off-by: Atish Patra <atish.patra@wdc.com> Tested-by: Greentime Hu <greentime.hu@sifive.com> Signed-off-by: Palmer Dabbelt <palmerdabbelt@google.com>		2020-11-25 16:05:28 -08:00
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boot	riscv: Ignore Image.* and loader.bin	2020-11-09 11:54:46 -08:00
configs	RISC-V: Add EFI stub support.	2020-10-02 14:31:21 -07:00
include	RISC-V: Protect all kernel sections including init early	2020-11-25 16:05:28 -08:00
kernel	RISC-V: Protect all kernel sections including init early	2020-11-25 16:05:28 -08:00
lib	riscv: use memcpy based uaccess for nommu again	2020-10-04 10:27:07 -07:00
mm	RISC-V: Protect all kernel sections including init early	2020-11-25 16:05:28 -08:00
net	treewide: Use fallthrough pseudo-keyword	2020-08-23 17:36:59 -05:00
Kbuild	riscv: Allow device trees to be built into the kernel	2020-05-18 11:38:05 -07:00
Kconfig	riscv: Enable ARCH_STACKWALK	2020-11-25 16:03:59 -08:00
Kconfig.debug	RISC-V: Remove EARLY_PRINTK support	2018-12-17 10:23:46 -08:00
Kconfig.socs	RISC-V: Remove CLINT related code from timer and arch	2020-08-20 10:58:13 -07:00
Makefile	riscv: Clean up boot dir	2020-11-09 11:54:45 -08:00