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Re: [PATCH v4 4/5] arm64: Verify CPU errata work arounds on hotplugged CPU

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On Fri, Apr 22, 2016 at 12:25:34PM +0100, Suzuki K. Poulose wrote:
> 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>
> Cc: Catalin Marinas <catalin.marinas@arm.com>
> Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com>

I think Will commented on this previously. Was a decision made to leave
this patch as it is and subsequently add support for enabling local
workarounds for hot-plugged CPUs? I'm fine with this given that most
per-CPU workarounds like undocumented bits are set by firmware. But I'd
like to see it done properly once we have a workaround that needs
per-CPU enabling.

Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>

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[PATCH v4 4/5] arm64: Verify CPU errata work arounds on hotplugged CPU Suzuki K Poulose <suzuki.poulose@arm.com> - 2016-04-22 13:30 +0200
  Re: [PATCH v4 4/5] arm64: Verify CPU errata work arounds on  hotplugged CPU Catalin Marinas <catalin.marinas@arm.com> - 2016-04-22 15:50 +0200
    Re: [PATCH v4 4/5] arm64: Verify CPU errata work arounds on  hotplugged CPU Suzuki K Poulose <Suzuki.Poulose@arm.com> - 2016-04-22 15:50 +0200

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