arm64: Verify CPU errata work arounds on hotplugged CPU

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CPU Errata work arounds are detected and applied to the
kernel code at boot time and the data is then freed up.
If a new hotplugged CPU requires a work around which
was not applied at boot time, there is nothing we can
do but simply fail the booting.

Cc: Will Deacon <will.deacon@arm.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Andre Przywara <andre.przywara@arm.com>
Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>

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Suzuki K Poulose 2016-04-22 12:25:34 +01:00 • committed by Will Deacon

parent 25fc11aead

commit 6a6efbb45b

3 changed files with 22 additions and 0 deletions

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1

arch/arm64/include/asm/cpufeature.h

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arch/arm64/kernel/cpu_errata.c

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arch/arm64/kernel/cpufeature.c

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