nixpkgs/nixos/modules/system/boot/modprobe.nix
Silvan Mosberger 4f0dadbf38 treewide: format all inactive Nix files
After final improvements to the official formatter implementation,
this commit now performs the first treewide reformat of Nix files using it.
This is part of the implementation of RFC 166.

Only "inactive" files are reformatted, meaning only files that
aren't being touched by any PR with activity in the past 2 months.
This is to avoid conflicts for PRs that might soon be merged.
Later we can do a full treewide reformat to get the rest,
which should not cause as many conflicts.

A CI check has already been running for some time to ensure that new and
already-formatted files are formatted, so the files being reformatted here
should also stay formatted.

This commit was automatically created and can be verified using

    nix-build a08b3a4d19.tar.gz \
      --argstr baseRev b32a094368
    result/bin/apply-formatting $NIXPKGS_PATH
2024-12-10 20:26:33 +01:00

89 lines
2.2 KiB
Nix

{
config,
lib,
pkgs,
...
}:
with lib;
{
###### interface
options = {
boot.modprobeConfig.enable =
mkEnableOption "modprobe config. This is useful for systems like containers which do not require a kernel"
// {
default = true;
};
boot.modprobeConfig.useUbuntuModuleBlacklist =
mkEnableOption "Ubuntu distro's module blacklist"
// {
default = true;
};
boot.blacklistedKernelModules = mkOption {
type = types.listOf types.str;
default = [ ];
example = [
"cirrusfb"
"i2c_piix4"
];
description = ''
List of names of kernel modules that should not be loaded
automatically by the hardware probing code.
'';
};
boot.extraModprobeConfig = mkOption {
default = "";
example = ''
options parport_pc io=0x378 irq=7 dma=1
'';
description = ''
Any additional configuration to be appended to the generated
{file}`modprobe.conf`. This is typically used to
specify module options. See
{manpage}`modprobe.d(5)` for details.
'';
type = types.lines;
};
};
###### implementation
config = mkIf config.boot.modprobeConfig.enable {
environment.etc."modprobe.d/ubuntu.conf" =
mkIf config.boot.modprobeConfig.useUbuntuModuleBlacklist
{
source = "${pkgs.kmod-blacklist-ubuntu}/modprobe.conf";
};
environment.etc."modprobe.d/nixos.conf".text = ''
${flip concatMapStrings config.boot.blacklistedKernelModules (name: ''
blacklist ${name}
'')}
${config.boot.extraModprobeConfig}
'';
environment.etc."modprobe.d/debian.conf".source = pkgs.kmod-debian-aliases;
environment.etc."modprobe.d/systemd.conf".source =
"${config.systemd.package}/lib/modprobe.d/systemd.conf";
environment.systemPackages = [ pkgs.kmod ];
system.activationScripts.modprobe = stringAfter [ "specialfs" ] ''
# Allow the kernel to find our wrapped modprobe (which searches
# in the right location in the Nix store for kernel modules).
# We need this when the kernel (or some module) auto-loads a
# module.
echo ${pkgs.kmod}/bin/modprobe > /proc/sys/kernel/modprobe
'';
};
}