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arm64: Allow booting of late CPUs affected by erratum 1418040 

[ Upstream commit bf87bb0881 ]

As we can now switch from a system that isn't affected by 1418040
to a system that globally is affected, let's allow affected CPUs
to come in at a later time.

Signed-off-by: Marc Zyngier <maz@kernel.org>
Tested-by: Sai Prakash Ranjan <saiprakash.ranjan@codeaurora.org>
Reviewed-by: Stephen Boyd <swboyd@chromium.org>
Reviewed-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Acked-by: Will Deacon <will@kernel.org>
Link: https://lore.kernel.org/r/20200731173824.107480-3-maz@kernel.org
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
5.4-rM2-2.2.x-imx-squashed
Marc Zyngier 2020-07-31 18:38:24 +01:00 committed by Greg Kroah-Hartman
parent 82b05f0838
commit 2f4b202eb1
1 changed files with 2 additions and 0 deletions
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arch/arm64/kernel/cpu_errata.c
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@ -917,6 +917,8 @@ const struct arm64_cpu_capabilities arm64_errata[] = {
.desc = "ARM erratum 1418040",
.capability = ARM64_WORKAROUND_1418040,
ERRATA_MIDR_RANGE_LIST(erratum_1418040_list),
.type = (ARM64_CPUCAP_SCOPE_LOCAL_CPU |
ARM64_CPUCAP_PERMITTED_FOR_LATE_CPU),
},
#endif
#ifdef CONFIG_ARM64_ERRATUM_1165522