linux-kernel - Re: [PATCH] arm64: dts: qcom: sa8775p: add symbols to dtb

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]

Date:   Mon, 13 Mar 2023 05:49:23 -0700
From:   Bjorn Andersson <andersson@...nel.org>
To:     Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>
Cc:     Eric Chanudet <echanude@...hat.com>,
        Andy Gross <agross@...nel.org>,
        Konrad Dybcio <konrad.dybcio@...aro.org>,
        linux-arm-msm@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH] arm64: dts: qcom: sa8775p: add symbols to dtb

On Thu, Mar 09, 2023 at 06:39:48PM -0500, Eric Chanudet wrote:
> ABL uses the __symbols__ section to process the DTB before passing it
> forward. Without it, the bootstrap is interrupted.
> 
> Signed-off-by: Eric Chanudet <echanude@...hat.com>

@Rob, @Krzysztof, it seems useful to be able to use the upstream
generated DTBs with overlays.

Do you suggest that we enable this on a per-board basis when it's being
requested, across all devices, or tell the users that they have to
re-generate the dtbs themselves?

Thanks,
Bjorn

> ---
> Depends on initial sa8775p-ride.dts:
> https://lore.kernel.org/all/20230214092713.211054-3-brgl@bgdev.pl/
> 
>  arch/arm64/boot/dts/qcom/Makefile | 4 ++++
>  1 file changed, 4 insertions(+)
> 
> diff --git a/arch/arm64/boot/dts/qcom/Makefile b/arch/arm64/boot/dts/qcom/Makefile
> index b63cd1861e68..72e85ab31d74 100644
> --- a/arch/arm64/boot/dts/qcom/Makefile
> +++ b/arch/arm64/boot/dts/qcom/Makefile
> @@ -1,4 +1,8 @@
>  # SPDX-License-Identifier: GPL-2.0
> +
> +# Enable support for device-tree overlays required on sa8775p-ride.
> +DTC_FLAGS_sa8775p-ride := -@
> +
>  dtb-$(CONFIG_ARCH_QCOM)	+= apq8016-sbc.dtb
>  dtb-$(CONFIG_ARCH_QCOM)	+= apq8094-sony-xperia-kitakami-karin_windy.dtb
>  dtb-$(CONFIG_ARCH_QCOM)	+= apq8096-db820c.dtb
> -- 
> 2.39.1
>