Messages in this thread Patch in this message | | | From | Jordan Crouse <> | Subject | [PATCH 5/7] iommu/arm-smmu: Support DOMAIN_ATTR_SPLIT_TABLES | Date | Tue, 20 Aug 2019 13:06:30 -0600 |
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Support the DOMAIN_ATTR_SPLIT_TABLES attribute to let the leaf driver know if split pagetables are enabled for the domain.
Signed-off-by: Jordan Crouse <jcrouse@codeaurora.org> ---
drivers/iommu/arm-smmu.c | 3 +++ 1 file changed, 3 insertions(+)
diff --git a/drivers/iommu/arm-smmu.c b/drivers/iommu/arm-smmu.c index 3f41cf7..6a512ff 100644 --- a/drivers/iommu/arm-smmu.c +++ b/drivers/iommu/arm-smmu.c @@ -1442,6 +1442,9 @@ static int arm_smmu_domain_get_attr(struct iommu_domain *domain, case DOMAIN_ATTR_NESTING: *(int *)data = (smmu_domain->stage == ARM_SMMU_DOMAIN_NESTED); return 0; + case DOMAIN_ATTR_SPLIT_TABLES: + *(int *)data = !!(smmu_domain->split_pagetables); + return 0; default: return -ENODEV; } -- 2.7.4
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