From daec6e3754620e8b0a4436ce7cc7fefc380c9e65 Mon Sep 17 00:00:00 2001
From: Acid Bong <acidbong@tilde.club>
Date: Fri, 14 Nov 2025 14:35:19 +0200
Subject: [PATCH] nixos/cpu/intel: allow customizing microcode package

follow-up to #434472
---
 nixos/modules/hardware/cpu/intel-microcode.nix | 9 ++++++---
 1 file changed, 6 insertions(+), 3 deletions(-)

diff --git a/nixos/modules/hardware/cpu/intel-microcode.nix b/nixos/modules/hardware/cpu/intel-microcode.nix
index 02eeed7695b8..53a5f1a1dc82 100644
--- a/nixos/modules/hardware/cpu/intel-microcode.nix
+++ b/nixos/modules/hardware/cpu/intel-microcode.nix
@@ -4,6 +4,9 @@
   pkgs,
   ...
 }:
+let
+  cfg = config.hardware.cpu.intel;
+in
 {
   ###### interface
   options = {
@@ -15,13 +18,13 @@
         Update the CPU microcode for Intel processors.
       '';
     };
-
+    hardware.cpu.intel.microcodePackage = lib.mkPackageOption pkgs "microcode-intel" { };
   };
 
   ###### implementation
-  config = lib.mkIf config.hardware.cpu.intel.updateMicrocode {
+  config = lib.mkIf cfg.updateMicrocode {
     # Microcode updates must be the first item prepended in the initrd
-    boot.initrd.prepend = lib.mkOrder 1 [ "${pkgs.microcode-intel}/intel-ucode.img" ];
+    boot.initrd.prepend = lib.mkOrder 1 [ "${cfg.microcodePackage}/intel-ucode.img" ];
   };
 
 }