[PATCH 2/4] arm64: kpti: Add KRYO2XX gold/silver CPU cores to kpti safelist

From: Konrad Dybcio
Date: Wed Nov 04 2020 - 18:32:44 EST


QCOM KRYO2XX gold (big) silver (LITTLE) CPU cores are based on
Cortex-A73 and Cortex-A53 respectively and are meltdown safe,
hence add them to kpti_safe_list[].

Signed-off-by: Konrad Dybcio <konrad.dybcio@xxxxxxxxxxxxxx>
---
arch/arm64/kernel/cpufeature.c | 2 ++
1 file changed, 2 insertions(+)

diff --git a/arch/arm64/kernel/cpufeature.c b/arch/arm64/kernel/cpufeature.c
index dcc165b3fc04..6f36c4f62f69 100644
--- a/arch/arm64/kernel/cpufeature.c
+++ b/arch/arm64/kernel/cpufeature.c
@@ -1337,6 +1337,8 @@ static bool unmap_kernel_at_el0(const struct arm64_cpu_capabilities *entry,
MIDR_ALL_VERSIONS(MIDR_CORTEX_A73),
MIDR_ALL_VERSIONS(MIDR_HISI_TSV110),
MIDR_ALL_VERSIONS(MIDR_NVIDIA_CARMEL),
+ MIDR_ALL_VERSIONS(MIDR_QCOM_KRYO_2XX_GOLD),
+ MIDR_ALL_VERSIONS(MIDR_QCOM_KRYO_2XX_SILVER),
MIDR_ALL_VERSIONS(MIDR_QCOM_KRYO_3XX_SILVER),
MIDR_ALL_VERSIONS(MIDR_QCOM_KRYO_4XX_SILVER),
{ /* sentinel */ }
--
2.29.2