linux-kernel - Re: [PATCH 1/2] arm64: dts: qcom: agatti: Fix IOMMU DT properties

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: <176703895892.2173273.270267541659374260.robh@kernel.org>
Date: Mon, 29 Dec 2025 14:39:29 -0600
From: Rob Herring <robh@...nel.org>
To: Sumit Garg <sumit.garg@...nel.org>
Cc: krzk+dt@...nel.org, linux-arm-msm@...r.kernel.org, 
 Sumit Garg <sumit.garg@....qualcomm.com>, 
 Prakash Gupta <guptap@....qualcomm.com>, konradybcio@...nel.org, 
 vikash.garodia@....qualcomm.com, andersson@...nel.org, 
 dikshita.agarwal@....qualcomm.com, akhilpo@....qualcomm.com, 
 linux-kernel@...r.kernel.org, lumag@...nel.org, 
 robin.clark@....qualcomm.com, devicetree@...r.kernel.org, 
 conor+dt@...nel.org
Subject: Re: [PATCH 1/2] arm64: dts: qcom: agatti: Fix IOMMU DT properties


On Mon, 29 Dec 2025 12:42:57 +0530, Sumit Garg wrote:
> From: Sumit Garg <sumit.garg@....qualcomm.com>
> 
> Fix IOMMU DT propeties for GPU, display and video peripherals via
> dropping SMMU stream IDs which relates to secure context bank.
> 
> This problem only surfaced when the Gunyah based firmware stack is
> ported on Agatti replacing the legacy QHEE based firmware stack. Assigning
> Linux kernel (HLOS) VMID to secure context bank stream IDs is treated
> as a fault by Gunyah hypervisor which were previously ignored by QHEE
> hypervisor.
> 
> The DT changes should be backwards compatible with legacy QHEE based
> firmware stack too.
> 
> Suggested-by: Prakash Gupta <guptap@....qualcomm.com>
> Signed-off-by: Sumit Garg <sumit.garg@....qualcomm.com>
> ---
>  arch/arm64/boot/dts/qcom/agatti.dtsi | 11 +++--------
>  1 file changed, 3 insertions(+), 8 deletions(-)
> 


My bot found new DTB warnings on the .dts files added or changed in this
series.

Some warnings may be from an existing SoC .dtsi. Or perhaps the warnings
are fixed by another series. Ultimately, it is up to the platform
maintainer whether these warnings are acceptable or not. No need to reply
unless the platform maintainer has comments.

If you already ran DT checks and didn't see these error(s), then
make sure dt-schema is up to date:

  pip3 install dtschema --upgrade


This patch series was applied (using b4) to base:
 Base: attempting to guess base-commit...
 Base: tags/next-20251219 (exact match)
 Base: tags/next-20251219 (use --merge-base to override)

If this is not the correct base, please add 'base-commit' tag
(or use b4 which does this automatically)

New warnings running 'make CHECK_DTBS=y for arch/arm64/boot/dts/qcom/' for 20251229071258.456254-1-sumit.garg@...nel.org:

arch/arm64/boot/dts/qcom/qrb2210-rb1.dtb: display-subsystem@...0000 (qcom,qcm2290-mdss): iommus: [[38, 1056, 2]] is too short
	from schema $id: http://devicetree.org/schemas/display/msm/qcom,qcm2290-mdss.yaml
arch/arm64/boot/dts/qcom/qrb2210-rb1.dtb: video-codec@...0000 (qcom,qcm2290-venus): iommus: [[38, 2144, 0], [38, 2176, 0]] is too short
	from schema $id: http://devicetree.org/schemas/media/qcom,qcm2290-venus.yaml