[PATCH v2 0/1] Add option to disable mte support
From: yee.lee
Date: Wed Jul 28 2021 - 22:07:28 EST
From: Yee Lee <yee.lee@xxxxxxxxxxxx>
For some case of low-end devices with limited resources,
an option to disable mte support is necessary.
This patch Adds an alias in id-reg override mechanism
to suppress the mte feature via passing a param.
=== Test ===
QEMU5.2 + mte
passed "arm64.nomte" in cmdline
boot log:
..(skip)
[ 0.000000] CPU features: SYS_ID_AA64PFR1_EL1[11:8]: forced to 0
Changed since v2:
- Use id-reg override machanism to suppress feature.
Yee Lee (1):
arm64/cpufeature: Add arm64.nomte to override id-reg
arch/arm64/kernel/idreg-override.c | 2 ++
1 file changed, 2 insertions(+)
--
2.18.0