1 files changed, 14 insertions, 0 deletions

diff --git a/drivers/firmware/efi/libstub/fdt.c b/drivers/firmware/efi/libstub/fdt.c
index cf7b7d46302a..6dba78aef337 100644
--- a/drivers/firmware/efi/libstub/fdt.c
+++ b/drivers/firmware/efi/libstub/fdt.c
@@ -147,6 +147,20 @@ efi_status_t update_fdt(efi_system_table_t *sys_table, void *orig_fdt,
         if (status)
                 goto fdt_set_fail;
 
+        if (IS_ENABLED(CONFIG_RANDOMIZE_BASE)) {
+                efi_status_t efi_status;
+
+                efi_status = efi_get_random_bytes(sys_table, sizeof(fdt_val64),
+                                                  (u8 *)&fdt_val64);
+                if (efi_status == EFI_SUCCESS) {
+                        status = fdt_setprop(fdt, node, "kaslr-seed",
+                                             &fdt_val64, sizeof(fdt_val64));
+                        if (status)
+                                goto fdt_set_fail;
+                } else if (efi_status != EFI_NOT_FOUND) {
+                        return efi_status;
+                }
+        }
         return EFI_SUCCESS;
 
 fdt_set_fail: