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[PATCH] xen/arm: vITS: add #msi-cells property
- To: <xen-devel@xxxxxxxxxxxxxxxxxxxx>
- From: Stewart Hildebrand <stewart.hildebrand@xxxxxxx>
- Date: Fri, 2 Aug 2024 14:26:52 -0400
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- Cc: Stewart Hildebrand <stewart.hildebrand@xxxxxxx>, Stefano Stabellini <sstabellini@xxxxxxxxxx>, Julien Grall <julien@xxxxxxx>, Bertrand Marquis <bertrand.marquis@xxxxxxx>, Michal Orzel <michal.orzel@xxxxxxx>, "Volodymyr Babchuk" <Volodymyr_Babchuk@xxxxxxxx>
- Delivery-date: Fri, 02 Aug 2024 18:27:28 +0000
- List-id: Xen developer discussion <xen-devel.lists.xenproject.org>
Non-PCI platform devices may use the ITS. Dom0 Linux drivers for such
devices are failing to register IRQs due to a missing #msi-cells
property. Add the missing #msi-cells property.
Signed-off-by: Stewart Hildebrand <stewart.hildebrand@xxxxxxx>
---
See Linux dc4dae00d82f ("Docs: dt: add #msi-cells to GICv3 ITS binding")
---
xen/arch/arm/gic-v3-its.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/xen/arch/arm/gic-v3-its.c b/xen/arch/arm/gic-v3-its.c
index 8afcd9783bc8..55bed3fe87d0 100644
--- a/xen/arch/arm/gic-v3-its.c
+++ b/xen/arch/arm/gic-v3-its.c
@@ -951,6 +951,10 @@ int gicv3_its_make_hwdom_dt_nodes(const struct domain *d,
if ( res )
return res;
+ res = fdt_property_cell(fdt, "#msi-cells", 1);
+ if ( res )
+ return res;
+
if ( its->phandle )
{
res = fdt_property_cell(fdt, "phandle", its->phandle);
base-commit: 984cb316cb27b53704c607e640a7dd2763b898ab
--
2.45.2
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