diff --git a/lib/nvmf/vfio_user.c b/lib/nvmf/vfio_user.c
index dde650924..e0a9aeaba 100644
--- a/lib/nvmf/vfio_user.c
+++ b/lib/nvmf/vfio_user.c
@@ -1528,7 +1528,7 @@ vfio_user_dev_info_fill(struct nvmf_vfio_user_transport *vu_transport,
 	}
 
 	ret = vfu_setup_region(vfu_ctx, VFU_PCI_DEV_CFG_REGION_IDX, NVME_REG_CFG_SIZE,
-			       access_pci_config, VFU_REGION_FLAG_RW, NULL, 0, -1);
+			       access_pci_config, VFU_REGION_FLAG_RW, NULL, 0, -1, 0);
 	if (ret < 0) {
 		SPDK_ERRLOG("vfu_ctx %p failed to setup cfg\n", vfu_ctx);
 		return ret;
@@ -1537,11 +1537,11 @@ vfio_user_dev_info_fill(struct nvmf_vfio_user_transport *vu_transport,
 	if (vu_transport->transport_opts.disable_mappable_bar0) {
 		ret = vfu_setup_region(vfu_ctx, VFU_PCI_DEV_BAR0_REGION_IDX, NVME_REG_BAR0_SIZE,
 				       access_bar0_fn, VFU_REGION_FLAG_RW | VFU_REGION_FLAG_MEM,
-				       NULL, 0, -1);
+				       NULL, 0, -1, 0);
 	} else {
 		ret = vfu_setup_region(vfu_ctx, VFU_PCI_DEV_BAR0_REGION_IDX, NVME_REG_BAR0_SIZE,
 				       access_bar0_fn, VFU_REGION_FLAG_RW | VFU_REGION_FLAG_MEM,
-				       sparse_mmap, 1, endpoint->fd);
+				       sparse_mmap, 1, endpoint->fd, 0);
 	}
 
 	if (ret < 0) {
@@ -1550,14 +1550,14 @@ vfio_user_dev_info_fill(struct nvmf_vfio_user_transport *vu_transport,
 	}
 
 	ret = vfu_setup_region(vfu_ctx, VFU_PCI_DEV_BAR4_REGION_IDX, PAGE_SIZE,
-			       NULL, VFU_REGION_FLAG_RW, NULL, 0, -1);
+			       NULL, VFU_REGION_FLAG_RW, NULL, 0, -1, 0);
 	if (ret < 0) {
 		SPDK_ERRLOG("vfu_ctx %p failed to setup bar 4\n", vfu_ctx);
 		return ret;
 	}
 
 	ret = vfu_setup_region(vfu_ctx, VFU_PCI_DEV_BAR5_REGION_IDX, PAGE_SIZE,
-			       NULL, VFU_REGION_FLAG_RW, NULL, 0, -1);
+			       NULL, VFU_REGION_FLAG_RW, NULL, 0, -1, 0);
 	if (ret < 0) {
 		SPDK_ERRLOG("vfu_ctx %p failed to setup bar 5\n", vfu_ctx);
 		return ret;
diff --git a/libvfio-user b/libvfio-user
index cfe990191..7443fbedd 160000
--- a/libvfio-user
+++ b/libvfio-user
@@ -1 +1 @@
-Subproject commit cfe9901919943f14961e1da1c4a823336ff79555
+Subproject commit 7443fbedd1f94288fbe0d3563b72c4938aa9ff2f