evie/android_kernel_oneplus_msm8998
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

ARM: 8298/1: ARM_KERNMEM_PERMS only works with MMU enabled

Browse source 
The recently added ARM_KERNMEM_PERMS feature works by manipulating
the kernel page tables, which obviously requires an MMU. Trying
to enable this feature when the MMU is disabled results in a lot
of compile errors in mm/init.c, so let's add a Kconfig dependency
to avoid that case.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
This commit is contained in:
Arnd Bergmann 2015-01-28 17:58:33 +01:00 • committed by Russell King
parent ed46092518
commit fba289054f
1 changed files with 1 additions and 0 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

1
arch/arm/mm/Kconfig
View file

@ -1012,6 +1012,7 @@ config ARCH_SUPPORTS_BIG_ENDIAN
config ARM_KERNMEM_PERMS config ARM_KERNMEM_PERMS
bool "Restrict kernel memory permissions" bool "Restrict kernel memory permissions"
depends on MMU
help help
If this is set, kernel memory other than kernel text (and rodata) If this is set, kernel memory other than kernel text (and rodata)
will be made non-executable. The tradeoff is that each region is will be made non-executable. The tradeoff is that each region is