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Re: [PATCH v2 3/8] hw/arm/virt: Use "msi-map" devicetree property for PC
From: |
Peter Maydell |
Subject: |
Re: [PATCH v2 3/8] hw/arm/virt: Use "msi-map" devicetree property for PCI |
Date: |
Tue, 27 Sep 2022 12:36:40 +0100 |
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
- Re: [PATCH v2 1/8] hw/arm/virt: Fix devicetree warning about the root node, (continued)
- [PATCH v2 2/8] hw/arm/virt: Fix devicetree warning about the GIC node, Jean-Philippe Brucker, 2022/09/27
- [PATCH v2 6/8] hw/arm/virt: Fix devicetree warning about the SMMU node, Jean-Philippe Brucker, 2022/09/27
- [PATCH v2 5/8] hw/arm/virt: Fix devicetree warnings about the GPIO node, Jean-Philippe Brucker, 2022/09/27
- [PATCH v2 3/8] hw/arm/virt: Use "msi-map" devicetree property for PCI, Jean-Philippe Brucker, 2022/09/27
- [PATCH v2 4/8] hw/arm/virt: Fix devicetree warning about the gpio-key node, Jean-Philippe Brucker, 2022/09/27
- [PATCH v2 7/8] hw/arm/virt: Fix devicetree warnings about the virtio-iommu node, Jean-Philippe Brucker, 2022/09/27
- [PATCH v2 8/8] hw/arm/virt: Fix devicetree warnings about node names, Jean-Philippe Brucker, 2022/09/27
- Re: [PATCH v2 0/8] hw/arm/virt: Fix dt-schema warnings, Peter Maydell, 2022/09/29