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

From: Kees Cook
Date: Tue Jan 02 2018 - 13:09:57 EST


On Wed, Dec 27, 2017 at 11:38 PM, <zhuoweizhang@xxxxxxxxx> wrote:
> From: Zhuowei Zhang <zhuoweizhang@xxxxxxxxx>
>
> 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@xxxxxxxxx>

Reviewed-by: Kees Cook <keescook@xxxxxxxxxxxx>

-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@1fe00000 {
> + 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