diff --git a/arch/x86/kernel/pci-swiotlb.c b/arch/x86/kernel/pci-swiotlb.c
index adf0392..844b89b 100644
--- a/arch/x86/kernel/pci-swiotlb.c
+++ b/arch/x86/kernel/pci-swiotlb.c
@@ -57,6 +57,9 @@ static struct dma_map_ops swiotlb_dma_ops = {
 	.unmap_sg = swiotlb_unmap_sg_attrs,
 	.map_page = swiotlb_map_page,
 	.unmap_page = swiotlb_unmap_page,
+#ifdef CONFIG_HAS_DMA_P2P
+	.map_peer_resource = swiotlb_map_peer_resource,
+#endif
 	.dma_supported = NULL,
 };