linux-kernel - Re: [PATCH 1/3] arm64: dts: meson-gx: add ATF BL32 reserved-memory region

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <517ef196-e622-7ed5-c3be-55ac3f054b74@baylibre.com>
Date:   Thu, 27 Jan 2022 11:46:08 +0100
From:   Neil Armstrong <narmstrong@...libre.com>
To:     Christian Hewitt <christianshewitt@...il.com>,
        Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Kevin Hilman <khilman@...libre.com>,
        devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-amlogic@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 1/3] arm64: dts: meson-gx: add ATF BL32 reserved-memory
 region

On 26/01/2022 05:49, Christian Hewitt wrote:
> Add an additional reserved memory region for the BL32 trusted firmware
> present in many devices that boot from Amlogic vendor u-boot.
> 
> Suggested-by: Mateusz Krzak <kszaquitto@...il.com>
> Signed-off-by: Christian Hewitt <christianshewitt@...il.com>
> ---
>  arch/arm64/boot/dts/amlogic/meson-gx.dtsi | 6 ++++++
>  1 file changed, 6 insertions(+)
> 
> diff --git a/arch/arm64/boot/dts/amlogic/meson-gx.dtsi b/arch/arm64/boot/dts/amlogic/meson-gx.dtsi
> index 6b457b2c30a4..aa14ea017a61 100644
> --- a/arch/arm64/boot/dts/amlogic/meson-gx.dtsi
> +++ b/arch/arm64/boot/dts/amlogic/meson-gx.dtsi
> @@ -49,6 +49,12 @@
>  			no-map;
>  		};
>  
> +		/* 32 MiB reserved for ARM Trusted Firmware (BL32) */
> +		secmon_reserved_bl32: secmon@...0000 {
> +			reg = <0x0 0x05300000 0x0 0x2000000>;
> +			no-map;
> +		};
> +
>  		linux,cma {
>  			compatible = "shared-dma-pool";
>  			reusable;
> 

Reviewed-by: Neil Armstrong <narmstrong@...libre.com>