nixos sedutil: module for setting up kernel parameters

nixos/modules/module-list.nix

@@ -100,6 +100,7 @@
   ./programs/qt5ct.nix
   ./programs/rootston.nix
   ./programs/screen.nix
+  ./programs/sedutil.nix
   ./programs/slock.nix
   ./programs/shadow.nix
   ./programs/shell.nix

nixos/modules/programs/sedutil.nix

@@ -0,0 +1,18 @@
+{ config, lib, pkgs, ... }:
+
+with lib;
+
+let
+  cfg = config.programs.sedutil;
+
+in {
+  options.programs.sedutil.enable = mkEnableOption "sedutil";
+
+  config = mkIf cfg.enable {
+    boot.kernelParams = [
+      "libata.allow_tpm=1"
+    ];
+
+    environment.systemPackages = with pkgs; [ sedutil ];
+  };
+}