Re: [PATCH v2 3/8] hw/arm/virt: Use "msi-map" devicetree property for PCI

[Peter Maydell]

On Tue, 27 Sept 2022 at 11:12, Jean-Philippe Brucker
<jean-philippe@linaro.org> wrote:
>
> The "msi-parent" property can be used on the PCI node when MSIs do not
> contain sideband data (device IDs) [1]. In QEMU, MSI transactions
> contain the requester ID, so the PCI node should use the "msi-map"
> property instead of "msi-parent". In our case the property describes an
> identity map between requester ID and sideband data.
>
> This fixes a warning when passing the DTB generated by QEMU to dtc,
> following a recent change to the GICv3 node:
>
>   Warning (msi_parent_property): /pcie@10000000:msi-parent: property size (4) 
> too small for cell size 1
>
> [1] linux/Documentation/devicetree/bindings/pci/pci-msi.txt
>
> Signed-off-by: Jean-Philippe Brucker <jean-philippe@linaro.org>

Reviewed-by: Peter Maydell <peter.maydell@linaro.org>

thanks
-- PMM