1 files changed, 2 insertions, 0 deletions

diff --git a/drivers/acpi/pci_root.c b/drivers/acpi/pci_root.c
index 7aff6312ce7..ec54014c321 100644
--- a/drivers/acpi/pci_root.c
+++ b/drivers/acpi/pci_root.c
@@ -505,6 +505,8 @@ static int __devinit acpi_pci_root_add(struct acpi_device *device)
         strcpy(acpi_device_class(device), ACPI_PCI_ROOT_CLASS);
         device->driver_data = root;
 
+        root->mcfg_addr = acpi_pci_root_get_mcfg_addr(device->handle);
+
         /*
          * All supported architectures that use ACPI have support for
          * PCI domains, so we indicate this in _OSC support capabilities.