genirq: Introduce irq_set_vcpu_affinity() to target an interrupt to a VCPU

[firefly-linux-kernel-4.4.55.git] / kernel / irq / chip.c

diff --git a/kernel/irq/chip.c b/kernel/irq/chip.c
index eb9a4ea394ab33fdde25420f11cb9021df384824..55016b2151f3b3d66db0ed2b838de481fbf99d57 100644 (file)
--- a/kernel/irq/chip.c
+++ b/kernel/irq/chip.c
@@ -949,6 +949,20 @@ int irq_chip_retrigger_hierarchy(struct irq_data *data)
        return -ENOSYS;
 }
 
+/**
+ * irq_chip_set_vcpu_affinity_parent - Set vcpu affinity on the parent interrupt
+ * @data:      Pointer to interrupt specific data
+ * @dest:      The vcpu affinity information
+ */
+int irq_chip_set_vcpu_affinity_parent(struct irq_data *data, void *vcpu_info)
+{
+       data = data->parent_data;
+       if (data->chip->irq_set_vcpu_affinity)
+               return data->chip->irq_set_vcpu_affinity(data, vcpu_info);
+
+       return -ENOSYS;
+}
+
 /**
  * irq_chip_set_wake_parent - Set/reset wake-up on the parent interrupt
  * @data:      Pointer to interrupt specific data