Microcode for intel processors (put in firmware, and 'modprobe microcode')

svn path=/nixpkgs/trunk/; revision=31957

pkgs/os-specific/linux/microcode/intel.nix

···
+{ stdenv, fetchurl }:
+
+let version = "20111110";
+    num = "20728";
+in stdenv.mkDerivation {
+  name = "microcode-intel-${version}";
+  src = fetchurl {
+    url = "http://downloadmirror.intel.com/${num}/eng/microcode-${version}.tgz";
+    sha256 = "16f532cdf9cce03e01e714619ad9406a465aa965bbd1288035398db79921cbc1";
+  };
+
+#  setSourceRoot = ''
+#    sourceRoot=.
+#  '';
+
+  sourceRoot = ".";
+
+  dontBuild = true;
+  installPhase = ''
+    ensureDir $out
+    cp microcode.dat "$out/"
+  '';
+
+  meta = {
+    homepage = http://www.intel.com;
+    description = "Microcode for Intel processors";
+  };
+}