iommu/arm-smmu: Set domain geometry

For non-aperture-based IOMMUs, the domain geometry seems to have become
the de-facto way of indicating the input address space size. That is
quite a useful thing from the users' perspective, so let's do the same.

Reviewed-by: Eric Auger <eric.auger@redhat.com>
Tested-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Signed-off-by: Robin Murphy <robin.murphy@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>

1 files changed, 2 insertions, 0 deletions

diff --git a/drivers/iommu/arm-smmu.c b/drivers/iommu/arm-smmu.c
index fd6cc19c4ced..c841eb7a1a74 100644
--- a/drivers/iommu/arm-smmu.c
+++ b/drivers/iommu/arm-smmu.c
@@ -939,6 +939,8 @@ static int arm_smmu_init_domain_context(struct iommu_domain *domain,
 
         /* Update the domain's page sizes to reflect the page table format */
         domain->pgsize_bitmap = pgtbl_cfg.pgsize_bitmap;
+        domain->geometry.aperture_end = (1UL << ias) - 1;
+        domain->geometry.force_aperture = true;
 
         /* Initialise the context bank with our page table cfg */
         arm_smmu_init_context_bank(smmu_domain, &pgtbl_cfg);