[PATCH v6 09/29] iommu/vt-d: Set the IRTE delivery mode individually for each IRQ

[Ricardo Neri]

There are no hardware requirements to use the same delivery mode for all
interrupts. Use the mode specified in the provided IRQ hardware
configuration data. Since all IRQs are configured to use the delivery mode
of the APIC drive, the only functional changes are where IRQs are
configured to use a specific delivery mode.

Cc: Andi Kleen <ak@xxxxxxxxxxxxxxx>
Cc: David Woodhouse <dwmw2@xxxxxxxxxxxxx>
Cc: "Ravi V. Shankar" <ravi.v.shankar@xxxxxxxxx>
Cc: Lu Baolu <baolu.lu@xxxxxxxxxxxxxxx>
Cc: Stephane Eranian <eranian@xxxxxxxxxx>
Cc: iommu@xxxxxxxxxxxxxxxxxxxxxxxxxx
Cc: linuxppc-dev@xxxxxxxxxxxxxxxx
Cc: x86@xxxxxxxxxx
Reviewed-by: Tony Luck <tony.luck@xxxxxxxxx>
Reviewed-by: Lu Baolu <baolu.lu@xxxxxxxxxxxxxxx>
Signed-off-by: Ricardo Neri <ricardo.neri-calderon@xxxxxxxxxxxxxxx>
---
Changes since v5:
 * Introduced this patch.

Changes since v4:
 * N/A

Changes since v3:
 * N/A

Changes since v2:
 * N/A

Changes since v1:
 * N/A
---
 drivers/iommu/intel/irq_remapping.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/iommu/intel/irq_remapping.c b/drivers/iommu/intel/irq_remapping.c
index 66d37186ec28..fb2d71bea98d 100644
--- a/drivers/iommu/intel/irq_remapping.c
+++ b/drivers/iommu/intel/irq_remapping.c
@@ -1125,7 +1125,7 @@ static void prepare_irte(struct irte *irte, struct irq_cfg *irq_cfg)
 	 * irq migration in the presence of interrupt-remapping.
 	*/
 	irte->trigger_mode = 0;
-	irte->dlvry_mode = apic->delivery_mode;
+	irte->dlvry_mode = irq_cfg->delivery_mode;
 	irte->vector = irq_cfg->vector;
 	irte->dest_id = IRTE_DEST(irq_cfg->dest_apicid);
 
-- 
2.17.1