linux-kernel - Re: [PATCH] arm64: dts: angler: add pstore-ramoops support

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Message-ID: <CAGXu5jJ2YNqbT_n-=K9tYqAc4JDDN+GHDfWbLDQcQxYKawSXuQ@mail.gmail.com>
Date:   Tue, 2 Jan 2018 10:09:49 -0800
From:   Kees Cook <keescook@...omium.org>
To:     zhuoweizhang@...oo.com
Cc:     jeremymc@...hat.com, Andy Gross <andy.gross@...aro.org>,
        David Brown <david.brown@...aro.org>,
        Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Catalin Marinas <catalin.marinas@....com>,
        Will Deacon <will.deacon@....com>,
        Anton Vorontsov <anton@...msg.org>,
        Colin Cross <ccross@...roid.com>,
        Tony Luck <tony.luck@...el.com>, linux-arm-msm@...r.kernel.org,
        linux-soc@...r.kernel.org, devicetree@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org,
        LKML <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] arm64: dts: angler: add pstore-ramoops support

On Wed, Dec 27, 2017 at 11:38 PM,  <zhuoweizhang@...oo.com> wrote:
> From: Zhuowei Zhang <zhuoweizhang@...oo.com>
>
> Support pstore-ramoops for retrieving kernel oops and panics after reboot.
>
> The address and configs are taken from the downstream kernel's device tree.
>
> Signed-off-by: Zhuowei Zhang <zhuoweizhang@...oo.com>

Reviewed-by: Kees Cook <keescook@...omium.org>

-Kees

> ---
>  arch/arm64/boot/dts/qcom/msm8994-angler-rev-101.dts | 15 +++++++++++++++
>  1 file changed, 15 insertions(+)
>
> diff --git a/arch/arm64/boot/dts/qcom/msm8994-angler-rev-101.dts b/arch/arm64/boot/dts/qcom/msm8994-angler-rev-101.dts
> index dfa08f5..9ce3a6e 100644
> --- a/arch/arm64/boot/dts/qcom/msm8994-angler-rev-101.dts
> +++ b/arch/arm64/boot/dts/qcom/msm8994-angler-rev-101.dts
> @@ -37,4 +37,19 @@
>                         pinctrl-1 = <&blsp1_uart2_sleep>;
>                 };
>         };
> +
> +       reserved-memory {
> +               #address-cells = <2>;
> +               #size-cells = <2>;
> +               ranges;
> +
> +               ramoops@...00000 {
> +                       compatible = "ramoops";
> +                       reg = <0 0x1fe00000 0 0x00200000>;
> +                       console-size = <0x100000>;
> +                       record-size = <0x10000>;
> +                       ftrace-size = <0x10000>;
> +                       pmsg-size = <0x80000>;
> +               };
> +       };
>  };
> --
> 1.9.1
>



-- 
Kees Cook
Pixel Security