diff options
| author | Jean-Philippe Brucker <jean-philippe@linaro.org> | 2022-09-27 11:03:44 +0100 |
|---|---|---|
| committer | Peter Maydell <peter.maydell@linaro.org> | 2022-09-29 17:55:05 +0100 |
| commit | 6b2f3ac945b75f548ab7ca37ac239dc981f7dfc3 (patch) | |
| tree | 07914af9717d12803111cfaa8f925b5abd331ca2 | |
| parent | a312a530076cb24414f193d3e6279b882a8288ff (diff) | |
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>
| -rw-r--r-- | hw/arm/virt.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/hw/arm/virt.c b/hw/arm/virt.c index 41b88dd144..b67ba0f2a1 100644 --- a/hw/arm/virt.c +++ b/hw/arm/virt.c @@ -1490,8 +1490,8 @@ static void create_pcie(VirtMachineState *vms) qemu_fdt_setprop(ms->fdt, nodename, "dma-coherent", NULL, 0); if (vms->msi_phandle) { - qemu_fdt_setprop_cells(ms->fdt, nodename, "msi-parent", - vms->msi_phandle); + qemu_fdt_setprop_cells(ms->fdt, nodename, "msi-map", + 0, vms->msi_phandle, 0, 0x10000); } qemu_fdt_setprop_sized_cells(ms->fdt, nodename, "reg", |