See commit e402463073 ("pci: allow 0 address for PCI IO/MEM
regions"), all sPAPR machines set this flag.

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
---
 hw/ppc/spapr.c     | 1 -
 hw/ppc/spapr_pci.c | 1 +
 2 files changed, 1 insertion(+), 1 deletion(-)

diff --git a/hw/ppc/spapr.c b/hw/ppc/spapr.c
index 5c02037c56..8af56bd68a 100644
--- a/hw/ppc/spapr.c
+++ b/hw/ppc/spapr.c
@@ -4600,7 +4600,6 @@ static void spapr_machine_class_init(ObjectClass *oc, void *data)
     mc->default_display = "std";
     mc->kvm_type = spapr_kvm_type;
     machine_class_allow_dynamic_sysbus_dev(mc, TYPE_SPAPR_PCI_HOST_BRIDGE);
-    mc->pci_allow_0_address = true;
     assert(!mc->get_hotplug_handler);
     mc->get_hotplug_handler = spapr_get_hotplug_handler;
     hc->pre_plug = spapr_machine_device_pre_plug;
diff --git a/hw/ppc/spapr_pci.c b/hw/ppc/spapr_pci.c
index 7e24084673..16f3a18d2e 100644
--- a/hw/ppc/spapr_pci.c
+++ b/hw/ppc/spapr_pci.c
@@ -1888,6 +1888,7 @@ static void spapr_phb_realize(DeviceState *dev, Error **errp)
                                 PCI_DEVFN(0, 0), PCI_NUM_PINS,
                                 TYPE_PCI_BUS);
 
+    bus->flags |= PCI_BUS_IO_ADDR0_ALLOWED;
     /*
      * Despite resembling a vanilla PCI bus in most ways, the PAPR
      * para-virtualized PCI bus *does* permit PCI-E extended config
-- 
2.45.2