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

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{ lib, stdenv, fetchFromGitHub, libarchive, iucode-tool }:
stdenv.mkDerivation rec {
pname = "microcode-intel";
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version = "20210608";
src = fetchFromGitHub {
owner = "intel";
repo = "Intel-Linux-Processor-Microcode-Data-Files";
rev = "microcode-${version}";
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sha256 = "08nk353z2lcqsjbm2qdsfapfgrvlfw0rj7r9scr9pllzkjj5n9x3";
};
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nativeBuildInputs = [ iucode-tool libarchive ];
installPhase = ''
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runHook preInstall
mkdir -p $out kernel/x86/microcode
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iucode_tool -w kernel/x86/microcode/GenuineIntel.bin intel-ucode/
echo kernel/x86/microcode/GenuineIntel.bin | bsdcpio -o -H newc -R 0:0 > $out/intel-ucode.img
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runHook postInstall
'';
meta = with lib; {
homepage = "http://www.intel.com/";
description = "Microcode for Intel processors";
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license = licenses.unfreeRedistributableFirmware;
platforms = platforms.linux;
maintainers = with maintainers; [ andir ];
};
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}