diff --git a/drivers/pci/iov.c b/drivers/pci/iov.c
index 64c46925c62d125bad4c3c4f3d4c7bf0e3a60818..ee0ebff103a412bc3db69c05f0a30ecc1872be48 100644
--- a/drivers/pci/iov.c
+++ b/drivers/pci/iov.c
@@ -569,6 +569,12 @@ int pci_iov_resource_bar(struct pci_dev *dev, int resno)
 		4 * (resno - PCI_IOV_RESOURCES);
 }
 
+resource_size_t __weak pcibios_iov_resource_alignment(struct pci_dev *dev,
+						      int resno)
+{
+	return pci_iov_resource_size(dev, resno);
+}
+
 /**
  * pci_sriov_resource_alignment - get resource alignment for VF BAR
  * @dev: the PCI device
@@ -581,7 +587,7 @@ int pci_iov_resource_bar(struct pci_dev *dev, int resno)
  */
 resource_size_t pci_sriov_resource_alignment(struct pci_dev *dev, int resno)
 {
-	return pci_iov_resource_size(dev, resno);
+	return pcibios_iov_resource_alignment(dev, resno);
 }
 
 /**
diff --git a/include/linux/pci.h b/include/linux/pci.h
index 99ea94835fb63be873603f9407f78a5916feacf8..4e1f17db1a81069c7898216cc79d9058b444546c 100644
--- a/include/linux/pci.h
+++ b/include/linux/pci.h
@@ -1174,6 +1174,7 @@ unsigned char pci_bus_max_busnr(struct pci_bus *bus);
 void pci_setup_bridge(struct pci_bus *bus);
 resource_size_t pcibios_window_alignment(struct pci_bus *bus,
 					 unsigned long type);
+resource_size_t pcibios_iov_resource_alignment(struct pci_dev *dev, int resno);
 
 #define PCI_VGA_STATE_CHANGE_BRIDGE (1 << 0)
 #define PCI_VGA_STATE_CHANGE_DECODES (1 << 1)