diff --git a/drivers/iommu/iommu.c b/drivers/iommu/iommu.c
index 7f409e9eea4b..7cb3f400b378 100644
--- a/drivers/iommu/iommu.c
+++ b/drivers/iommu/iommu.c
@@ -2666,6 +2666,18 @@ static ssize_t __iommu_map_sg(struct iommu_domain *domain, unsigned long iova,
 	unsigned int i = 0;
 	int ret;
 
+	if (ops->map_sg) {
+		ret = ops->map_sg(domain, iova, sg, nents, prot, gfp, &mapped);
+
+		if (ops->iotlb_sync_map)
+			ops->iotlb_sync_map(domain, iova, mapped);
+
+		if (ret)
+			goto out_err;
+
+		return mapped;
+	}
+
 	while (i <= nents) {
 		phys_addr_t s_phys = sg_phys(sg);
 
diff --git a/include/linux/iommu.h b/include/linux/iommu.h
index e6d5961d27c2..1016c15f2447 100644
--- a/include/linux/iommu.h
+++ b/include/linux/iommu.h
@@ -212,6 +212,8 @@ struct iommu_iotlb_gather {
  * @map: map a physically contiguous memory region to an iommu domain
  * @map_pages: map a physically contiguous set of pages of the same size to
  *             an iommu domain.
+ * @map_sg: map a scatter-gather list of physically contiguous chunks to
+ *          an iommu domain.
  * @unmap: unmap a physically contiguous memory region from an iommu domain
  * @unmap_pages: unmap a number of pages of the same size from an iommu domain
  * @flush_iotlb_all: Synchronously flush all hardware TLBs for this domain
@@ -265,6 +267,9 @@ struct iommu_ops {
 	int (*map_pages)(struct iommu_domain *domain, unsigned long iova,
 			 phys_addr_t paddr, size_t pgsize, size_t pgcount,
 			 int prot, gfp_t gfp, size_t *mapped);
+	int (*map_sg)(struct iommu_domain *domain, unsigned long iova,
+		      struct scatterlist *sg, unsigned int nents, int prot,
+		      gfp_t gfp, size_t *mapped);
 	size_t (*unmap)(struct iommu_domain *domain, unsigned long iova,
 		     size_t size, struct iommu_iotlb_gather *iotlb_gather);
 	size_t (*unmap_pages)(struct iommu_domain *domain, unsigned long iova,