pci: fix bridge update

bridge config write should trigger updates
on the secondary bus. never on the primary bus.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>

1 files changed, 3 insertions, 1 deletions

diff --git a/hw/pci.c b/hw/pci.c
index fbba6e38fe..a98d6f3ad1 100644
--- a/hw/pci.c
+++ b/hw/pci.c
@@ -1568,7 +1568,9 @@ static void pci_bridge_write_config(PCIDevice *d,
         /* memory base/limit, prefetchable base/limit and
            io base/limit upper 16 */
         ranges_overlap(address, len, PCI_MEMORY_BASE, 20)) {
-        pci_bridge_update_mappings(d->bus);
+        PCIBridge *s = container_of(d, PCIBridge, dev);
+        PCIBus *secondary_bus = &s->bus;
+        pci_bridge_update_mappings(secondary_bus);
     }
 }