nixpkgs/nixos/modules/hardware/cpu/amd-microcode.nix
Franz Pletz bccac381b2
microcode updates: prepend first in initrd
Prevents crashing the kernel on boot if other blobs are prepended
before the microkernel update image.

Fixes #22674.
2017-02-27 17:12:33 +01:00

30 lines
517 B
Nix

{ config, lib, pkgs, ... }:
with lib;
{
###### interface
options = {
hardware.cpu.amd.updateMicrocode = mkOption {
default = false;
type = types.bool;
description = ''
Update the CPU microcode for AMD processors.
'';
};
};
###### implementation
config = mkIf config.hardware.cpu.amd.updateMicrocode {
# Microcode updates must be the first item prepended in the initrd
boot.initrd.prepend = mkOrder 1 [ "${pkgs.microcodeAmd}/amd-ucode.img" ];
};
}