intel microcode update module

svn path=/nixos/trunk/; revision=32477

modules/hardware/cpu/intel-microcode.nix

@@ -0,0 +1,34 @@
+{pkgs, config, ...}:
+
+{
+
+  ###### interface
+
+  options = {
+
+    hardware.cpu.intel.updateMicrocode = pkgs.lib.mkOption {
+      default = false;
+      type = pkgs.lib.types.bool;
+      description = ''
+        Update the CPU microcode for intel processors.
+      '';
+    };
+
+  };
+
+
+  ###### implementation
+
+  config = pkgs.lib.mkIf config.hardware.cpu.intel.updateMicrocode {
+    hardware.firmware = [pkgs.microcodeIntel];
+    jobs.microcode = {
+      name = "microcode";
+      description = "load microcode";
+      startOn = "started udev";
+      exec = "modprobe microcode";
+      path = [config.system.sbin.modprobe];
+      task = true;
+    };
+  };
+
+}

modules/module-list.nix

@@ -14,6 +14,7 @@
   ./config/timezone.nix
   ./config/unix-odbc-drivers.nix
   ./config/users-groups.nix
+  ./hardware/cpu/intel-microcode.nix
   ./hardware/network/intel-2100bg.nix
   ./hardware/network/intel-2200bg.nix
   ./hardware/network/intel-3945abg.nix