Commit e3dd11a9 authored Nov 05, 2020 by Konrad Dybcio Committed by Will Deacon Nov 13, 2020

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>

parent 77473cff

arch/arm64/kernel/cpufeature.c

+2 −0

Original line number	Diff line number	Diff line
		@@ -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 */ }

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