diff --git a/hw/ppc/spapr.c b/hw/ppc/spapr.c
index fbb4e0da15..e06321cf15 100644
--- a/hw/ppc/spapr.c
+++ b/hw/ppc/spapr.c
@@ -80,7 +80,6 @@
 #define TIMEBASE_FREQ           512000000ULL
 
 #define MAX_CPUS                256
-#define XICS_IRQS               1024
 
 #define PHANDLE_XICP            0x00001111
 
diff --git a/hw/ppc/spapr_pci.c b/hw/ppc/spapr_pci.c
index 3b01beadbb..988f8cb858 100644
--- a/hw/ppc/spapr_pci.c
+++ b/hw/ppc/spapr_pci.c
@@ -876,6 +876,7 @@ int spapr_populate_pci_dt(sPAPRPHBState *phb,
     _FDT(fdt_setprop(fdt, bus_off, "ranges", &ranges, sizeof(ranges)));
     _FDT(fdt_setprop(fdt, bus_off, "reg", &bus_reg, sizeof(bus_reg)));
     _FDT(fdt_setprop_cell(fdt, bus_off, "ibm,pci-config-space-type", 0x1));
+    _FDT(fdt_setprop_cell(fdt, bus_off, "ibm,pe-total-#msi", XICS_IRQS));
 
     /* Build the interrupt-map, this must matches what is done
      * in pci_spapr_map_irq
diff --git a/include/hw/ppc/xics.h b/include/hw/ppc/xics.h
index 0d7673de94..85e4c8a3dd 100644
--- a/include/hw/ppc/xics.h
+++ b/include/hw/ppc/xics.h
@@ -152,6 +152,8 @@ struct ICSIRQState {
     uint8_t status;
 };
 
+#define XICS_IRQS               1024
+
 qemu_irq xics_get_qirq(XICSState *icp, int irq);
 void xics_set_irq_type(XICSState *icp, int irq, bool lsi);