From: David Woodhouse <d...@amazon.co.uk>

Signed-off-by: David Woodhouse <d...@amazon.co.uk>
---
 drivers/iommu/intel/irq_remapping.c | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/drivers/iommu/intel/irq_remapping.c 
b/drivers/iommu/intel/irq_remapping.c
index 511dfb4884bc..40c2fec122b8 100644
--- a/drivers/iommu/intel/irq_remapping.c
+++ b/drivers/iommu/intel/irq_remapping.c
@@ -1435,7 +1435,20 @@ static void intel_irq_remapping_deactivate(struct 
irq_domain *domain,
        modify_irte(&data->irq_2_iommu, &entry);
 }
 
+static int intel_irq_remapping_select(struct irq_domain *d,
+                                     struct irq_fwspec *fwspec,
+                                     enum irq_domain_bus_token bus_token)
+{
+       if (x86_fwspec_is_ioapic(fwspec))
+               return d == map_ioapic_to_ir(fwspec->param[0]);
+       else if (x86_fwspec_is_hpet(fwspec))
+               return d == map_hpet_to_ir(fwspec->param[0]);
+
+       return 0;
+}
+
 static const struct irq_domain_ops intel_ir_domain_ops = {
+       .select = intel_irq_remapping_select,
        .alloc = intel_irq_remapping_alloc,
        .free = intel_irq_remapping_free,
        .activate = intel_irq_remapping_activate,
-- 
2.26.2

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