Messages in this thread | | | Subject | Re: [PATCH 4/5] arm64: Verify CPU errata work arounds on hotplugged CPU | From | Suzuki K Poulose <> | Date | Fri, 15 Apr 2016 15:10:27 +0100 |
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On 14/04/16 18:49, Suzuki K Poulose wrote: > On 14/04/16 18:39, Will Deacon wrote: >> On Wed, Apr 06, 2016 at 12:24:13PM +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. >> >> Hmm, wouldn't it be better not to free the alternative text for errata >> workarounds instead? > > We could. I don't have a strong opinion. If there are no objections, I could > adopt it.
The alternatives have been merged to .init by :
commit 9aa4ec1571da6236 ("arm64: mm: fold alternatives into .init")
Mark,
Do you have any concerns on applying alternatives for CPUs turned online later ? We have to revert the patch above to get going
Suzuki
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