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[Xen-devel] [PATCH v2] xen/dt: Allow only IRQ translation that are mapped to main GIC

Xen is only able to handle one GIC controller. Some platform may contain
other interrupt controller.

Make sure to only translate IRQ mapped into the GIC handled by Xen.

Signed-off-by: Julien Grall <julien.grall@xxxxxxxxxx>

    Changes in v2:
        - Fix compilation...
 xen/common/device_tree.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/xen/common/device_tree.c b/xen/common/device_tree.c
index 310635e..7178c77 100644
--- a/xen/common/device_tree.c
+++ b/xen/common/device_tree.c
@@ -1444,6 +1444,8 @@ int dt_irq_translate(const struct dt_raw_irq *raw,
     ASSERT(dt_irq_xlate != NULL);
     /* TODO: Retrieve the right irq_xlate. This is only work for the gic */
+    if ( raw->controller != dt_interrupt_controller )
+        return -EINVAL;
     return dt_irq_xlate(raw->specifier, raw->size,
                         &out_irq->irq, &out_irq->type);

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