linux-kernel - Re: [PATCH 0/4] Add KRYO2XX Errata / mitigations data

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Date:   Tue, 10 Nov 2020 12:30:11 +0530
From:   Sai Prakash Ranjan <saiprakash.ranjan@...eaurora.org>
To:     Will Deacon <will@...nel.org>
Cc:     Konrad Dybcio <konrad.dybcio@...ainline.org>,
        Jeffrey Hugo <jhugo@...eaurora.org>,
        phone-devel@...r.kernel.org, ~postmarketos/upstreaming@...ts.sr.ht,
        martin.botka@...ainline.org,
        angelogioacchino.delregno@...ainline.org,
        marijn.suijten@...ainline.org,
        Catalin Marinas <catalin.marinas@....com>,
        Stephen Boyd <swboyd@...omium.org>,
        Rob Herring <robh@...nel.org>, Marc Zyngier <maz@...nel.org>,
        Suzuki K Poulose <suzuki.poulose@....com>,
        Steven Price <steven.price@....com>,
        Mark Brown <broonie@...nel.org>,
        Andrew Scull <ascull@...gle.com>,
        Anshuman Khandual <anshuman.khandual@....com>,
        Amit Daniel Kachhap <amit.kachhap@....com>,
        Ionela Voinescu <ionela.voinescu@....com>,
        Kristina Martsenko <kristina.martsenko@....com>,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 0/4] Add KRYO2XX Errata / mitigations data

On 2020-11-05 15:03, Will Deacon wrote:
> Hi Konrad,
> 
> [+Jeffrey]
> 
> On Thu, Nov 05, 2020 at 12:22:09AM +0100, Konrad Dybcio wrote:
>> This series adds Spectre mitigations and errata data for
>> Qualcomm KRYO2XX Gold (big) and Silver (LITTLE) series of
>> CPU cores, used for example in MSM8998 and SDM660-series SoCs.
>> 
>> Konrad Dybcio (4):
>>   arm64: Add MIDR value for KRYO2XX gold/silver CPU cores
>>   arm64: kpti: Add KRYO2XX gold/silver CPU cores to kpti safelist
>>   arm64: proton-pack: Add KRYO2XX silver CPUs to spectre-v2 safe-list
>>   arm64: cpu_errata: Apply Erratum 845719 to KRYO2XX Silver
> 
> This mostly looks fine to me, but I've added Jeffrey to check the MIDRs
> because he's my go-to person for the Qualcomm numbering scheme.
> 
> Jeffrey -- please can you check these patches [1], especially the last 
> patch
> which has some cryptic revision number in there too?

Jeffrey can confirm this, but the MIDR is right and the cryptic revision
maps to cortex r0p4.

Thanks,
Sai

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