diff --git a/hw/ppc/e500.c b/hw/ppc/e500.c
index 757cfaa62f..32495d0123 100644
--- a/hw/ppc/e500.c
+++ b/hw/ppc/e500.c
@@ -17,6 +17,7 @@
 #include "qemu/osdep.h"
 #include "qemu/datadir.h"
 #include "qemu/units.h"
+#include "qemu/guest-random.h"
 #include "qapi/error.h"
 #include "e500.h"
 #include "e500-ccsr.h"
@@ -346,6 +347,7 @@ static int ppce500_load_device_tree(PPCE500MachineState *pms,
         };
     const char *dtb_file = machine->dtb;
     const char *toplevel_compat = machine->dt_compatible;
+    uint8_t rng_seed[32];
 
     if (dtb_file) {
         char *filename;
@@ -403,6 +405,9 @@ static int ppce500_load_device_tree(PPCE500MachineState *pms,
     if (ret < 0)
         fprintf(stderr, "couldn't set /chosen/bootargs\n");
 
+    qemu_guest_getrandom_nofail(rng_seed, sizeof(rng_seed));
+    qemu_fdt_setprop(fdt, "/chosen", "rng-seed", rng_seed, sizeof(rng_seed));
+
     if (kvm_enabled()) {
         /* Read out host's frequencies */
         clock_freq = kvmppc_get_clockfreq();
diff --git a/hw/ppc/spapr.c b/hw/ppc/spapr.c
index 9a5382d527..3a5112899e 100644
--- a/hw/ppc/spapr.c
+++ b/hw/ppc/spapr.c
@@ -27,6 +27,7 @@
 #include "qemu/osdep.h"
 #include "qemu/datadir.h"
 #include "qemu/memalign.h"
+#include "qemu/guest-random.h"
 #include "qapi/error.h"
 #include "qapi/qapi-events-machine.h"
 #include "qapi/qapi-events-qdev.h"
@@ -1014,6 +1015,7 @@ static void spapr_dt_chosen(SpaprMachineState *spapr, void *fdt, bool reset)
 {
     MachineState *machine = MACHINE(spapr);
     SpaprMachineClass *smc = SPAPR_MACHINE_GET_CLASS(machine);
+    uint8_t rng_seed[32];
     int chosen;
 
     _FDT(chosen = fdt_add_subnode(fdt, 0, "chosen"));
@@ -1091,6 +1093,9 @@ static void spapr_dt_chosen(SpaprMachineState *spapr, void *fdt, bool reset)
         spapr_dt_ov5_platform_support(spapr, fdt, chosen);
     }
 
+    qemu_guest_getrandom_nofail(rng_seed, sizeof(rng_seed));
+    _FDT(fdt_setprop(fdt, chosen, "rng-seed", rng_seed, sizeof(rng_seed)));
+
     _FDT(spapr_dt_ovec(fdt, chosen, spapr->ov5_cas, "ibm,architecture-vec-5"));
 }