diff options
| author | Wang Kefeng <wangkefeng.wang@huawei.com> | 2021-12-03 10:26:33 +0100 |
|---|---|---|
| committer | Russell King (Oracle) <rmk+kernel@armlinux.org.uk> | 2021-12-17 11:34:38 +0000 |
| commit | 75969686ec0df23157afe24dc818d7bddb087d78 (patch) | |
| tree | 75c494737cde3df0c91fcacb3de1d67ff5a89108 /arch/arm/Kconfig | |
| parent | 3c341b217414d1d63718438f2b2fa588cf2b73fc (diff) | |
ARM: 9166/1: Support KFENCE for ARM
Add architecture specific implementation details for KFENCE and enable
KFENCE on ARM. In particular, this implements the required interface in
<asm/kfence.h>.
KFENCE requires that attributes for pages from its memory pool can
individually be set. Therefore, force the kfence pool to be mapped
at page granularity.
Testing this patch using the testcases in kfence_test.c and all passed
with or without ARM_LPAE.
Acked-by: Marco Elver <elver@google.com>
Signed-off-by: Kefeng Wang <wangkefeng.wang@huawei.com>
Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Diffstat (limited to 'arch/arm/Kconfig')
| -rw-r--r-- | arch/arm/Kconfig | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig index f0f9e8bec83a..321b0a1c2820 100644 --- a/arch/arm/Kconfig +++ b/arch/arm/Kconfig @@ -69,6 +69,7 @@ config ARM select HAVE_ARCH_AUDITSYSCALL if AEABI && !OABI_COMPAT select HAVE_ARCH_BITREVERSE if (CPU_32v7M || CPU_32v7) && !CPU_32v6 select HAVE_ARCH_JUMP_LABEL if !XIP_KERNEL && !CPU_ENDIAN_BE32 && MMU + select HAVE_ARCH_KFENCE if MMU && !XIP_KERNEL select HAVE_ARCH_KGDB if !CPU_ENDIAN_BE32 && MMU select HAVE_ARCH_KASAN if MMU && !XIP_KERNEL select HAVE_ARCH_MMAP_RND_BITS if MMU |