[Xen-changelog] [xen master] xen/dts: Allow only IRQ translation that are mapped to main GIC

[patchbot@xxxxxxx]

commit fda2386ffc639db7a529429dcdf05348aa8b14e0
Author:     Julien Grall <julien.grall@xxxxxxxxxx>
AuthorDate: Wed Apr 1 17:21:35 2015 +0100
Commit:     Ian Campbell <ian.campbell@xxxxxxxxxx>
CommitDate: Thu Apr 2 10:42:34 2015 +0100

    xen/dts: Allow only IRQ translation that are mapped to main GIC
    
    Xen is only able to handle one GIC controller. Some platforms may contain
    other interrupt controllers.
    
    Make sure to only translate IRQ mapped into the GIC handled by Xen.
    
    Signed-off-by: Julien Grall <julien.grall@xxxxxxxxxx>
    Acked-by: Stefano Stabellini <stefano.stabellini@xxxxxxxxxxxxx>
    Acked-by: Ian Campbell <ian.campbell@xxxxxxxxxx>
---
 xen/common/device_tree.c |    8 +++++++-
 1 files changed, 7 insertions(+), 1 deletions(-)

diff --git a/xen/common/device_tree.c b/xen/common/device_tree.c
index d1c716f..26fa298 100644
--- a/xen/common/device_tree.c
+++ b/xen/common/device_tree.c
@@ -1058,8 +1058,14 @@ int dt_irq_translate(const struct dt_raw_irq *raw,
                      struct dt_irq *out_irq)
 {
     ASSERT(dt_irq_xlate != NULL);
+    ASSERT(dt_interrupt_controller != NULL);
 
-    /* TODO: Retrieve the right irq_xlate. This is only work for the gic */
+    /*
+     * TODO: Retrieve the right irq_xlate. This is only works for the primary
+     * interrupt controller.
+     */
+    if ( raw->controller != dt_interrupt_controller )
+        return -EINVAL;
 
     return dt_irq_xlate(raw->specifier, raw->size,
                         &out_irq->irq, &out_irq->type);
--
generated by git-patchbot for /home/xen/git/xen.git#master

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