[PATCH AUTOSEL 5.4 38/38] arm64: Allow booting of late CPUs affected by erratum 1418040
From: Sasha Levin <sashal@kernel.org>
Date: 2020-08-24 17:00:37
Also in:
lkml, stable
Subsystem:
arm64 port (aarch64 architecture), the rest · Maintainers:
Catalin Marinas, Will Deacon, Linus Torvalds
From: Marc Zyngier <maz@kernel.org> [ Upstream commit bf87bb0881d0f59181fe3bbcf29c609f36483ff8 ] 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 <redacted> Reviewed-by: Stephen Boyd <redacted> 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 (local) Signed-off-by: Catalin Marinas <catalin.marinas@arm.com> Signed-off-by: Sasha Levin <sashal@kernel.org> --- arch/arm64/kernel/cpu_errata.c | 2 ++ 1 file changed, 2 insertions(+)
diff --git a/arch/arm64/kernel/cpu_errata.c b/arch/arm64/kernel/cpu_errata.c
index 0b2830379fe03..51462c59ab5da 100644
--- a/arch/arm64/kernel/cpu_errata.c
+++ b/arch/arm64/kernel/cpu_errata.c@@ -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
--
2.25.1
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