nixos/modules/programs/cpu-energy-meter.nix


1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27

{ config
, lib
, pkgs
, ...
}: {
  options.programs.cpu-energy-meter = {
    enable = lib.mkEnableOption "CPU Energy Meter";
    package = lib.mkPackageOption pkgs "cpu-energy-meter" { };
  };

  config =
    let
      cfg = config.programs.cpu-energy-meter;
    in
    lib.mkIf cfg.enable {
      hardware.cpu.x86.msr.enable = true;

      security.wrappers.${cfg.package.meta.mainProgram} = {
        owner = "nobody";
        group = config.hardware.cpu.x86.msr.group;
        source = lib.getExe cfg.package;
        capabilities = "cap_sys_rawio=ep";
      };
    };

  meta.maintainers = with lib.maintainers; [ lorenzleutgeb ];
}