Messages in this thread | | | From | <> | Subject | [PATCH v3 0/1] arm64/cpufeature: Support optionally disable MTE | Date | Fri, 30 Jul 2021 22:49:52 +0800 |
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From: Yee Lee <yee.lee@mediatek.com>
For some case of low-end devices with limited resources, an option to disable MTE support is necessary.
This patch supoorts to override id-reg on the shadow capability via comandline and suppress MTE feature.
=== 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 v3: - Add documentation text
Changed since v2: - Use id-reg override machanism to suppress feature.
Yee Lee (1): arm64/cpufeature: Optionally disable MTE via command-line
Documentation/admin-guide/kernel-parameters.txt | 3 +++ arch/arm64/kernel/idreg-override.c | 2 ++ 2 files changed, 5 insertions(+)
-- 2.18.0
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