Re: [PATCH v3] arm64: dts: qcom: hamoa: Add remoteproc IOMMUS in EL2 device trees

[Konrad Dybcio]

On 2/3/26 7:32 AM, Xin Liu wrote:
> All the existing variants Hamoa boards are using Gunyah hypervisor
> which means that, so far, Linux-based OS could only boot in EL1 on
> those devices. However, it is possible for us to boot Linux at EL2
> on these devices [1].
> 
> When running under Gunyah, the remote processor firmware IOMMU streams
> are controlled by Gunyah. However, without Gunyah, the IOMMU is managed
> by the consumer of this DeviceTree. Therefore, describe the firmware
> streams for each remote processor.
> 
> Add remoteproc IOMMUS to the EL2 device trees to generate the
> corresponding -el2.dtb files.
> 
> [1]
> https://docs.qualcomm.com/bundle/publicresource/topics/80-70020-4/boot-developer-touchpoints.html#uefi
> 
> Reviewed-by: Abel Vesa <abel.vesa@xxxxxxxxxxxxxxxx>
> Signed-off-by: Xin Liu <xin.liu@xxxxxxxxxxxxxxxx>
> ---
> Changes in v3:
> - Modify the subject title

FWIW subject and title are the used interchangeably

Reviewed-by: Konrad Dybcio <konrad.dybcio@xxxxxxxxxxxxxxxx>

Konrad