Commit cb883c36 authored by Jörg Thalheim's avatar Jörg Thalheim
Browse files

nixos/facter: add boot and storage detection 

This adds automatic kernel module detection for boot-critical hardware:

- disk.nix: Detects and loads kernel modules for storage controllers
  Auto-detects modules for: disk controllers, storage controllers,
  and FireWire controllers (for FireWire-attached disks).
  Modules are automatically added to boot.initrd.availableKernelModules.

- keyboard.nix: Detects USB controller drivers for keyboard support
  Ensures USB HID drivers are loaded in initrd for keyboard access
  during boot (critical for LUKS password entry, etc.).

Follow up to #454237.
Part of incremental upstreaming from nixos-facter-modules.
parent 368ed53d

nixos/modules/hardware/facter/default.nix

+2 −0
Original line number Diff line number Diff line
@@ -5,6 +5,8 @@ 
}:

{

  imports = [

    ./disk.nix

    ./keyboard.nix

    ./system.nix

  ];

nixos/modules/hardware/facter/disk.nix

0 → 100644
+28 −0
Original line number Diff line number Diff line 
{ lib, config, ... }:

let

  facterLib = import ./lib.nix lib;



  inherit (config.hardware.facter) report;

in

{

  options.hardware.facter.detected.boot.disk.kernelModules = lib.mkOption {

    type = lib.types.listOf lib.types.str;

    default = lib.uniqueStrings (

      facterLib.collectDrivers (

        # A disk might be attached.

        (report.hardware.firewire_controller or [ ])

        # definitely important

        ++ (report.hardware.disk or [ ])

        ++ (report.hardware.storage_controller or [ ])

      )

    );

    defaultText = "hardware dependent";

    description = ''

      List of kernel modules that are needed to access the disk.

    '';

  };



  config = {

    boot.initrd.availableKernelModules = config.hardware.facter.detected.boot.disk.kernelModules;

  };

}

nixos/modules/hardware/facter/keyboard.nix

0 → 100644
+21 −0
Original line number Diff line number Diff line 
{ lib, config, ... }:

let

  facterLib = import ./lib.nix lib;



  inherit (config.hardware.facter) report;

in

{

  options.hardware.facter.detected.boot.keyboard.kernelModules = lib.mkOption {

    type = lib.types.listOf lib.types.str;

    default = lib.uniqueStrings (facterLib.collectDrivers (report.hardware.usb_controller or [ ]));

    defaultText = "hardware dependent";

    example = [ "usbhid" ];

    description = ''

      List of kernel modules to include in the initrd to support the keyboard.

    '';

  };



  config = {

    boot.initrd.availableKernelModules = config.hardware.facter.detected.boot.keyboard.kernelModules;

  };

}