diff --git a/drivers/iommu/dma-iommu.c b/drivers/iommu/dma-iommu.c
index 4a91275bc221fa7d9175aef43ba7c55530d4cd2c..b3a70eb8a34965c12d51ac23d73688c814cf2ad8 100644
--- a/drivers/iommu/dma-iommu.c
+++ b/drivers/iommu/dma-iommu.c
@@ -581,6 +581,18 @@ int iova_reserve_domain_addr(struct iommu_domain *domain, dma_addr_t start, dma_
 }
 EXPORT_SYMBOL_GPL(iova_reserve_domain_addr);
 
+static int iova_reserve_pci_regions(struct device *dev, struct iommu_domain *domain)
+{
+	struct iommu_dma_cookie *cookie = domain->iova_cookie;
+	struct iova_domain *iovad = &cookie->iovad;
+	int ret = 0;
+
+	if (dev_is_pci(dev))
+		ret = iova_reserve_pci_windows(to_pci_dev(dev), iovad);
+
+	return ret;
+}
+
 static int iova_reserve_iommu_regions(struct device *dev,
 		struct iommu_domain *domain)
 {
@@ -590,12 +602,6 @@ static int iova_reserve_iommu_regions(struct device *dev,
 	LIST_HEAD(resv_regions);
 	int ret = 0;
 
-	if (dev_is_pci(dev)) {
-		ret = iova_reserve_pci_windows(to_pci_dev(dev), iovad);
-		if (ret)
-			return ret;
-	}
-
 	iommu_get_resv_regions(dev, &resv_regions);
 	list_for_each_entry(region, &resv_regions, list) {
 		unsigned long lo, hi;
@@ -727,7 +733,7 @@ static int iommu_dma_init_domain(struct iommu_domain *domain, dma_addr_t base,
 		}
 
 		ret = 0;
-		goto done_unlock;
+		goto iova_reserve_iommu;
 	}
 
 	init_iova_domain(iovad, 1UL << order, base_pfn);
@@ -742,6 +748,11 @@ static int iommu_dma_init_domain(struct iommu_domain *domain, dma_addr_t base,
 	    (!device_iommu_capable(dev, IOMMU_CAP_DEFERRED_FLUSH) || iommu_dma_init_fq(domain)))
 		domain->type = IOMMU_DOMAIN_DMA;
 
+	ret = iova_reserve_pci_regions(dev, domain);
+	if (ret)
+		goto done_unlock;
+
+iova_reserve_iommu:
 	ret = iova_reserve_iommu_regions(dev, domain);
 
 done_unlock: