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[PATCHv7,03/26] iommu/arm-smmu: add IOMMU_CAP_NOEXEC to the ARM SMMU driver

Message ID 1411483586-29304-4-git-send-email-a.motakis@virtualopensystems.com (mailing list archive)
State New, archived
Headers show

Commit Message

Antonios Motakis Sept. 23, 2014, 2:46 p.m. UTC 
The ARM SMMU supports the IOMMU_NOEXEC protection flag. Add the
corresponding IOMMU capability.

Signed-off-by: Antonios Motakis <a.motakis@virtualopensystems.com>
---
 drivers/iommu/arm-smmu.c | 2 ++
 1 file changed, 2 insertions(+)
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Patch

diff --git a/drivers/iommu/arm-smmu.c b/drivers/iommu/arm-smmu.c
index c7cbdda..7c0fa25 100644
--- a/drivers/iommu/arm-smmu.c
+++ b/drivers/iommu/arm-smmu.c
@@ -1539,6 +1539,8 @@  static int arm_smmu_domain_has_cap(struct iommu_domain *domain,
 		return features & ARM_SMMU_FEAT_COHERENT_WALK;
 	case IOMMU_CAP_INTR_REMAP:
 		return 1; /* MSIs are just memory writes */
+	case IOMMU_CAP_NOEXEC:
+		return 1;
 	default:
 		return 0;
 	}