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mirror of https://github.com/NixOS/mobile-nixos.git synced 2024-12-15 11:03:37 +03:00
mobile-nixos/modules/initrd-vendor.nix
2020-03-29 15:23:26 -04:00

32 lines
935 B
Nix

# This module handles well-known "vendor" partitions.
#
# Relevant upstream documentation:
# * https://www.kernel.org/doc/html/v4.14/driver-api/firmware/fw_search_path.html
#
# Note that we'll be using `firmware_class.path=/vendor/firmware` on the
# command-line to make the firmware path known ASAP without requiring run-time
# configuration. The NixOS stage-2 will configure `/sys/module/firmware_class/parameters/path`
# as expected.
{ config, lib, ... }:
let
device_info = config.mobile.device.info;
vendor_device =
if device_info ? vendor_partition
then device_info.vendor_partition
else null
;
in
lib.mkMerge [
(lib.mkIf (vendor_device != null) {
# FIXME: add "firmware_class.path=/vendor/firmware" to kernel cmdline
boot.specialFileSystems = {
"/vendor" = {
device = vendor_device;
fsType = "ext4";
options = [ "ro" "nosuid" "noexec" "nodev" ];
};
};
})
]