diff --git a/hw/ppc/e500.c b/hw/ppc/e500.c
index ebb6d96689e847ede6fc935344a567b2ee355d8e..564f6548e4287b3b7ca524bc41a4928833c31bf3 100644
--- a/hw/ppc/e500.c
+++ b/hw/ppc/e500.c
@@ -339,7 +339,8 @@ static int ppce500_load_device_tree(CPUPPCState *env,
     qemu_devtree_setprop_cells(fdt, pci, "interrupt-map-mask", 0xf800, 0x0,
                                0x0, 0x7);
     pci_map = pci_map_create(fdt, qemu_devtree_get_phandle(fdt, mpic),
-                             0x11, 2, &len);
+                             params->pci_first_slot, params->pci_nr_slots,
+                             &len);
     qemu_devtree_setprop(fdt, pci, "interrupt-map", pci_map, len);
     qemu_devtree_setprop_phandle(fdt, pci, "interrupt-parent", mpic);
     qemu_devtree_setprop_cells(fdt, pci, "interrupts", 24, 2);
@@ -569,6 +570,7 @@ void ppce500_init(PPCE500Params *params)
 
     /* PCI */
     dev = qdev_create(NULL, "e500-pcihost");
+    qdev_prop_set_uint32(dev, "first_slot", params->pci_first_slot);
     qdev_init_nofail(dev);
     s = SYS_BUS_DEVICE(dev);
     sysbus_connect_irq(s, 0, mpic[pci_irq_nrs[0]]);
diff --git a/hw/ppc/e500.h b/hw/ppc/e500.h
index 7ae87f4e214ca391db37fbbd96bf9cea292433d2..f5ff27385b89010e94015bc9da3b661d7691d6ec 100644
--- a/hw/ppc/e500.h
+++ b/hw/ppc/e500.h
@@ -9,6 +9,8 @@ typedef struct PPCE500Params {
     const char *kernel_cmdline;
     const char *initrd_filename;
     const char *cpu_model;
+    int pci_first_slot;
+    int pci_nr_slots;
 
     /* e500-specific params */
 
diff --git a/hw/ppc/e500plat.c b/hw/ppc/e500plat.c
index 4cfb94061adb2f05e1a5ce5ac0230aa950c9093e..9365213aff879472b1ae48d5bcd9e172b2a58ec0 100644
--- a/hw/ppc/e500plat.c
+++ b/hw/ppc/e500plat.c
@@ -40,6 +40,8 @@ static void e500plat_init(QEMUMachineInitArgs *args)
         .kernel_cmdline = kernel_cmdline,
         .initrd_filename = initrd_filename,
         .cpu_model = cpu_model,
+        .pci_first_slot = 0x11,
+        .pci_nr_slots = 2,
         .fixup_devtree = e500plat_fixup_devtree,
     };
 
diff --git a/hw/ppc/mpc8544ds.c b/hw/ppc/mpc8544ds.c
index e6516619416687843ec82d4938b7e01d35f9c1c8..7e1761d20c4d365095065c715d989e2af75554c0 100644
--- a/hw/ppc/mpc8544ds.c
+++ b/hw/ppc/mpc8544ds.c
@@ -40,6 +40,8 @@ static void mpc8544ds_init(QEMUMachineInitArgs *args)
         .kernel_cmdline = kernel_cmdline,
         .initrd_filename = initrd_filename,
         .cpu_model = cpu_model,
+        .pci_first_slot = 0x11,
+        .pci_nr_slots = 2,
         .fixup_devtree = mpc8544ds_fixup_devtree,
     };