[PATCH v2 1/1] arm64/cpufeature: Add arm64.nomte to override id-reg
yee.lee at mediatek.com
yee.lee at mediatek.com
Wed Jul 28 19:07:12 PDT 2021
From: Yee Lee <yee.lee at mediatek.com>
Add an alias, "arm64.nomte", to override id-reg and
suppress mte feature.
Suggested-by: Marc Zyngier <maz at kernel.org>
Suggested-by: Suzuki K Poulose <suzuki.poulose at arm.com>
Signed-off-by: Yee Lee <yee.lee at mediatek.com>
---
arch/arm64/kernel/idreg-override.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/arch/arm64/kernel/idreg-override.c b/arch/arm64/kernel/idreg-override.c
index 53a381a7f65d..d8e606fe3c21 100644
--- a/arch/arm64/kernel/idreg-override.c
+++ b/arch/arm64/kernel/idreg-override.c
@@ -54,6 +54,7 @@ static const struct ftr_set_desc pfr1 __initconst = {
.override = &id_aa64pfr1_override,
.fields = {
{ "bt", ID_AA64PFR1_BT_SHIFT },
+ { "mte", ID_AA64PFR1_MTE_SHIFT},
{}
},
};
@@ -100,6 +101,7 @@ static const struct {
{ "arm64.nopauth",
"id_aa64isar1.gpi=0 id_aa64isar1.gpa=0 "
"id_aa64isar1.api=0 id_aa64isar1.apa=0" },
+ { "arm64.nomte", "id_aa64pfr1.mte=0" },
{ "nokaslr", "kaslr.disabled=1" },
};
--
2.18.0
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