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| author | Jean-Philippe Brucker | 2022-09-27 12:03:44 +0200 |
|---|---|---|
| committer | Peter Maydell | 2022-09-29 18:55:05 +0200 |
| commit | 6b2f3ac945b75f548ab7ca37ac239dc981f7dfc3 (patch) | |
| tree | 07914af9717d12803111cfaa8f925b5abd331ca2 /scripts/check_sparse.py | |
| parent | hw/arm/virt: Fix devicetree warning about the GIC node (diff) | |
| download | qemu-6b2f3ac945b75f548ab7ca37ac239dc981f7dfc3.tar.gz qemu-6b2f3ac945b75f548ab7ca37ac239dc981f7dfc3.tar.xz qemu-6b2f3ac945b75f548ab7ca37ac239dc981f7dfc3.zip | |
hw/arm/virt: Use "msi-map" devicetree property for PCI
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>
Reviewed-by: Eric Auger <eric.auger@redhat.com>
Message-id: 20220927100347.176606-4-jean-philippe@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Diffstat (limited to 'scripts/check_sparse.py')
0 files changed, 0 insertions, 0 deletions