From 83b0c36b8a136042aa9209fc9ca2fab31d5fbe7c Mon Sep 17 00:00:00 2001 From: Sai Prakash Ranjan Date: Fri, 17 Jan 2020 01:33:53 +0530 Subject: arm64: Add KRYO{3,4}XX CPU cores to spectre-v2 safe list The "silver" KRYO3XX and KRYO4XX CPU cores are not affected by Spectre variant 2. Add them to spectre_v2 safe list to correct the spurious ARM_SMCCC_ARCH_WORKAROUND_1 warning and vulnerability status reported under sysfs. Reviewed-by: Stephen Boyd Tested-by: Stephen Boyd Signed-off-by: Sai Prakash Ranjan [will: tweaked commit message to remove stale mention of "gold" cores] Signed-off-by: Will Deacon --- arch/arm64/kernel/cpu_errata.c | 2 ++ 1 file changed, 2 insertions(+) (limited to 'arch/arm64/kernel') diff --git a/arch/arm64/kernel/cpu_errata.c b/arch/arm64/kernel/cpu_errata.c index 85f4bec22f6d..d661c7d0e6e2 100644 --- a/arch/arm64/kernel/cpu_errata.c +++ b/arch/arm64/kernel/cpu_errata.c @@ -548,6 +548,8 @@ static const struct midr_range spectre_v2_safe_list[] = { MIDR_ALL_VERSIONS(MIDR_CORTEX_A55), MIDR_ALL_VERSIONS(MIDR_BRAHMA_B53), MIDR_ALL_VERSIONS(MIDR_HISI_TSV110), + MIDR_ALL_VERSIONS(MIDR_QCOM_KRYO_3XX_SILVER), + MIDR_ALL_VERSIONS(MIDR_QCOM_KRYO_4XX_SILVER), { /* sentinel */ } }; -- cgit