Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]

Groups > linux.kernel > #1541499 > unrolled thread

[RFC v4 16/16] iommu/arm-smmu: Do not advertise IOMMU_CAP_INTR_REMAP anymore

Back to article view | Back to linux.kernel

This discussion starts older than the indexed window; earlier articles aren't shown. The article labeled Started by below is the oldest one visible, not the original post.

Contents

  [RFC v4 16/16] iommu/arm-smmu: Do not advertise IOMMU_CAP_INTR_REMAP anymore Eric Auger <eric.auger@redhat.com> - 2016-12-13 21:40 +0100

#1541499 — [RFC v4 16/16] iommu/arm-smmu: Do not advertise IOMMU_CAP_INTR_REMAP anymore

IOMMU_CAP_INTR_REMAP has been advertised in arm-smmu(-v3) although
on ARM this property is not attached to the IOMMU but rather is
implemented in the MSI controller (GICv3 ITS).

Now vfio_iommu_type1 takes into account the MSI domain MSI remapping
capability, let's correct this.

Signed-off-by: Eric Auger <eric.auger@redhat.com>
---
 drivers/iommu/arm-smmu-v3.c | 2 --
 drivers/iommu/arm-smmu.c    | 2 --
 2 files changed, 4 deletions(-)

diff --git a/drivers/iommu/arm-smmu-v3.c b/drivers/iommu/arm-smmu-v3.c
index c9ee2f5..0d472c8 100644
--- a/drivers/iommu/arm-smmu-v3.c
+++ b/drivers/iommu/arm-smmu-v3.c
@@ -1373,8 +1373,6 @@ static bool arm_smmu_capable(enum iommu_cap cap)
 	switch (cap) {
 	case IOMMU_CAP_CACHE_COHERENCY:
 		return true;
-	case IOMMU_CAP_INTR_REMAP:
-		return true; /* MSIs are just memory writes */
 	case IOMMU_CAP_NOEXEC:
 		return true;
 	default:
diff --git a/drivers/iommu/arm-smmu.c b/drivers/iommu/arm-smmu.c
index d24a646..27a851e 100644
--- a/drivers/iommu/arm-smmu.c
+++ b/drivers/iommu/arm-smmu.c
@@ -1371,8 +1371,6 @@ static bool arm_smmu_capable(enum iommu_cap cap)
 		 * requests.
 		 */
 		return true;
-	case IOMMU_CAP_INTR_REMAP:
-		return true; /* MSIs are just memory writes */
 	case IOMMU_CAP_NOEXEC:
 		return true;
 	default:
-- 
1.9.1

[toc] | [standalone]

Back to top | Article view | linux.kernel

csiph-web