arm64: kpti: Add KRYO2XX gold/silver CPU cores to kpti safelist

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@somainline.org>
Link: https://lore.kernel.org/r/20201104232218.198800-3-konrad.dybcio@somainline.org
Signed-off-by: Will Deacon <will@kernel.org>

diff --git a/arch/arm64/kernel/cpufeature.c b/arch/arm64/kernel/cpufeature.c
index dcc165b..6f36c4f 100644 (file)
--- 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 */ }