Finally ARM SMMU declare that iommu-mapping for MSI-pages are not
set automatically and it should be set explicitly.
Signed-off-by: Bharat Bhushan <Bharat.Bhushan@xxxxxxxxxxxxx>
---
drivers/iommu/arm-smmu.c | 7 ++++++-
1 file changed, 6 insertions(+), 1 deletion(-)
diff --git a/drivers/iommu/arm-smmu.c b/drivers/iommu/arm-smmu.c
index a3956fb..9d37e72 100644
--- a/drivers/iommu/arm-smmu.c
+++ b/drivers/iommu/arm-smmu.c
@@ -1401,13 +1401,18 @@ static int arm_smmu_domain_get_attr(struct iommu_domain *domain,
enum iommu_attr attr, void *data)
{
struct arm_smmu_domain *smmu_domain = to_smmu_domain(domain);
+ struct iommu_domain_msi_maps *msi_maps;
switch (attr) {
case DOMAIN_ATTR_NESTING:
*(int *)data = (smmu_domain->stage == ARM_SMMU_DOMAIN_NESTED);
return 0;
case DOMAIN_ATTR_MSI_MAPPING:
- /* Dummy handling added */
+ msi_maps = data;
+
+ msi_maps->automap = false;
+ msi_maps->override_automap = true;
+
return 0;
default:
return -ENODEV;
--
1.9.3
--
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