linux-kernel - Re: [PATCH 8/8] arm64: cpufeature: Add an overview comment for the cpufeature framework

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Message-ID: <20200416115817.GB32443@willie-the-truck>
Date:   Thu, 16 Apr 2020 12:58:22 +0100
From:   Will Deacon <will@...nel.org>
To:     linux-arm-kernel@...ts.infradead.org, kvmarm@...ts.cs.columbia.edu
Cc:     linux-kernel@...r.kernel.org,
        Suzuki K Poulose <suzuki.poulose@....com>,
        Mark Rutland <mark.rutland@....com>,
        Marc Zyngier <maz@...nel.org>,
        Anshuman Khandual <anshuman.khandual@....com>,
        Catalin Marinas <catalin.marinas@....com>,
        Sai Prakash Ranjan <saiprakash.ranjan@...eaurora.org>,
        Doug Anderson <dianders@...omium.org>, kernel-team@...roid.com
Subject: Re: [PATCH 8/8] arm64: cpufeature: Add an overview comment for the
 cpufeature framework

Hi Suzuki,

On Tue, Apr 14, 2020 at 10:31:14PM +0100, Will Deacon wrote:
> Now that Suzuki isn't within throwing distance, I thought I'd better add
> a rough overview comment to cpufeature.c so that it doesn't take me days
> to remember how it works next time.
> 
> Signed-off-by: Will Deacon <will@...nel.org>
> ---
>  arch/arm64/kernel/cpufeature.c | 43 ++++++++++++++++++++++++++++++++++
>  1 file changed, 43 insertions(+)

Any chance you can look at this one, please? I don't trust myself to get
all of the details right here! I'm also wondering whether we should mention
something about KVM and the guest view of the registers.

What do you think?

Will