[Xen-devel] [PATCH v6 21/36] ARM: GICv3: prepare for virtual ITS subnodes

[Andre Przywara <andre.przywara@xxxxxxx>]

When creating the device tree for a domain using an emulated GICv3,
we will later need to add the respective ITS subnodes as well.
Prepare a stub function to be later filled with the actual code.

Signed-off-by: Andre Przywara <andre.przywara@xxxxxxx>
---
 xen/arch/arm/gic-v3.c            | 4 +++-
 xen/include/asm-arm/gic_v3_its.h | 8 ++++++++
 2 files changed, 11 insertions(+), 1 deletion(-)

diff --git a/xen/arch/arm/gic-v3.c b/xen/arch/arm/gic-v3.c
index 54fbb19..2fbcf52 100644
--- a/xen/arch/arm/gic-v3.c
+++ b/xen/arch/arm/gic-v3.c
@@ -1172,8 +1172,10 @@ static int gicv3_make_hwdom_dt_node(const struct domain 
*d,
 
     res = fdt_property(fdt, "reg", new_cells, len);
     xfree(new_cells);
+    if ( res )
+        return res;
 
-    return res;
+    return gicv3_its_make_dt_nodes(NULL, d, gic, fdt);
 }
 
 static const hw_irq_controller gicv3_host_irq_type = {
diff --git a/xen/include/asm-arm/gic_v3_its.h b/xen/include/asm-arm/gic_v3_its.h
index 7470779..09c7117 100644
--- a/xen/include/asm-arm/gic_v3_its.h
+++ b/xen/include/asm-arm/gic_v3_its.h
@@ -220,6 +220,14 @@ static inline void vgic_v3_its_free_domain(struct domain 
*d)
 
 #endif /* CONFIG_HAS_ITS */
 
+static inline int gicv3_its_make_dt_nodes(struct list_head *its_list,
+                                          const struct domain *d,
+                                          const struct dt_device_node *gic,
+                                          void *fdt)
+{
+    return 0;
+}
+
 #endif
 
 /*
-- 
2.9.0


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