[RFC,v3,14/15] iommu/arm-smmu: do not advertise IOMMU_CAP_INTR_REMAP

Message ID 1455264797-2334-15-git-send-email-eric.auger@linaro.org
State New
Headers show

Commit Message

Auger Eric Feb. 12, 2016, 8:13 a.m.
Do not advertise IOMMU_CAP_INTR_REMAP for arm-smmu. Indeed the
irq_remapping capability is abstracted on irqchip side for ARM as
opposed to Intel IOMMU featuring IRQ remapping HW.

So to check IRQ remmapping capability, the msi domain needs to be
checked instead.

Signed-off-by: Eric Auger <eric.auger@linaro.org>

---
 drivers/iommu/arm-smmu.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

-- 
1.9.1

Patch

diff --git a/drivers/iommu/arm-smmu.c b/drivers/iommu/arm-smmu.c
index ae8a97d..9a83285 100644
--- a/drivers/iommu/arm-smmu.c
+++ b/drivers/iommu/arm-smmu.c
@@ -1354,7 +1354,7 @@  static bool arm_smmu_capable(enum iommu_cap cap)
 		 */
 		return true;
 	case IOMMU_CAP_INTR_REMAP:
-		return true; /* MSIs are just memory writes */
+		return false; /* MSIs are just memory writes */
 	case IOMMU_CAP_NOEXEC:
 		return true;
 	default: