Commit f4617be3 authored Jun 24, 2020 by Sai Prakash Ranjan Committed by Will Deacon Jun 24, 2020

arm64: kpti: Add KRYO{3, 4}XX silver CPU cores to kpti safelist

QCOM KRYO{3,4}XX silver/LITTLE CPU cores are based on Cortex-A55
and are meltdown safe, hence add them to kpti_safe_list[].

Signed-off-by: Sai Prakash Ranjan <saiprakash.ranjan@codeaurora.org>
Link: https://lore.kernel.org/r/20200624123406.3472-1-saiprakash.ranjan@codeaurora.org

Signed-off-by: Will Deacon <will@kernel.org>

parent 2d21889f

arch/arm64/kernel/cpufeature.c

+2 −0

Original line number	Diff line number	Diff line
		@@ -1290,6 +1290,8 @@ 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_3XX_SILVER),
		MIDR_ALL_VERSIONS(MIDR_QCOM_KRYO_4XX_SILVER),
		{ /* sentinel */ }
		};
		char const *str = "kpti command line option";