linux-kernel - Re: [PATCH v2 0/3] arm64: cpufeature: Fix handling of CTR

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Date:   Tue, 16 Oct 2018 12:00:26 +0100
From:   Catalin Marinas <catalin.marinas@....com>
To:     Suzuki K Poulose <suzuki.poulose@....com>
Cc:     linux-arm-kernel@...ts.infradead.org, mark.rutland@....com,
        pelcan@...eaurora.org, will.deacon@....com,
        linux-kernel@...r.kernel.org, shankerd@...eaurora.org
Subject: Re: [PATCH v2 0/3] arm64: cpufeature: Fix handling of CTR_EL0

On Tue, Oct 09, 2018 at 02:47:03PM +0100, Suzuki K. Poulose wrote:
> This series makes sure that we handle the CTR_EL0 field mismatches
> properly, especially for the IDC field. Also, skip trapping CTR
> accesses on a CPU if it matches the safe value.
> 
> Applies on arm64 for-next/core.
> 
> Changes since v1
>  - Fix wrong hunk in has_cache_idc()
>  - Allow a late secondary CPU with raw CTR_EL0.IDC = 0 and effective
>    CTR_EL0.IDC = 1, to boot on a system without IDC available.
> 
> Suzuki K Poulose (3):
>   arm64: cpufeature: ctr: Fix cpu capability check for late CPUs
>   arm64: cpufeature: Fix handling of CTR_EL0.IDC field
>   arm64: cpufeature: Trap CTR_EL0 access only where it is necessary

Queued for 4.20. Thanks.

-- 
Catalin