nixos/cpu-energy-meter: init

2 files changed, 28 insertions, 0 deletions

diff --git a/nixos/modules/module-list.nix b/nixos/modules/module-list.nix
index 76ccf5a341094..63dd799699837 100644
--- a/nixos/modules/module-list.nix
+++ b/nixos/modules/module-list.nix
@@ -167,6 +167,7 @@
   ./programs/chromium.nix
   ./programs/clash-verge.nix
   ./programs/cnping.nix
+  ./programs/cpu-energy-meter.nix
   ./programs/command-not-found/command-not-found.nix
   ./programs/coolercontrol.nix
   ./programs/criu.nix
diff --git a/nixos/modules/programs/cpu-energy-meter.nix b/nixos/modules/programs/cpu-energy-meter.nix
new file mode 100644
index 0000000000000..653ec067492d7
--- /dev/null
+++ b/nixos/modules/programs/cpu-energy-meter.nix
@@ -0,0 +1,27 @@
+{ 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 ];
+}