[PATCH AUTOSEL 5.9 20/21] arm64: kpti: Add KRYO2XX gold/silver CPU cores to kpti safelist

[Sasha Levin]

From: Konrad Dybcio <konrad.dybcio@xxxxxxxxxxxxxx>

[ Upstream commit e3dd11a9f2521cecbcf30c2fd17ecc5a445dfb94 ]

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>
Link: https://lore.kernel.org/r/20201104232218.198800-3-konrad.dybcio@xxxxxxxxxxxxxx
Signed-off-by: Will Deacon <will@xxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
 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 6424584be01e6..9d0e4afdc8caa 100644
--- a/arch/arm64/kernel/cpufeature.c
+++ b/arch/arm64/kernel/cpufeature.c
@@ -1333,6 +1333,8 @@ 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 */ }
-- 
2.27.0