.

3 files changed, 73 insertions, 0 deletions

diff --git a/modules/coreboot/default.nix b/modules/coreboot/default.nix
new file mode 100644
index 000000000000..aeeb4426f6d4
--- /dev/null
+++ b/modules/coreboot/default.nix
@@ -0,0 +1,44 @@
+{ config, pkgs, lib, ... }:
+
+with lib;
+
+let
+  cfg = config.coreboot;
+in {
+  options.coreboot = {
+    extraFiles = mkOption {
+      type = types.attrs;
+    };
+    corebootConfig = mkOption {
+      type = types.attrs;
+    };
+    rom = mkOption {
+      readOnly = true;
+      type = types.path;
+    };
+  };
+
+  config = {
+    coreboot.rom = let
+      base = pkgs.coreboot.override {
+        inherit (cfg) corebootConfig;
+      };
+
+      filteredFiles = filterAttrs (k: v: v != null) cfg.extraFiles;
+      filesList = mapAttrsToList (k: v: v // { name = v; }) filteredFiles;
+
+      installCommands = concatMapStringsSep "\n" (file: ''
+        cbfstool $out add \
+          -f ${file.src} \
+          -n ${file.name} \
+          -t ${file.type}
+      '') filesList;
+
+    in runCommand "coreboot-rom" {
+      buildInputs = with pkgs; [ cbfstool ];
+    } ''
+      install -D ${base}/coreboot.rom -t $out
+      ${installCommands}
+    '';
+  };
+}
diff --git a/modules/default.nix b/modules/default.nix
new file mode 100644
index 000000000000..6012f715f372
--- /dev/null
+++ b/modules/default.nix
@@ -0,0 +1,9 @@
+{ ... }:
+
+{
+  imports = [
+    ./coreboot
+    ./grub2
+    #./tianocore
+  ];
+}
diff --git a/modules/grub2/default.nix b/modules/grub2/default.nix
new file mode 100644
index 000000000000..c8790b880081
--- /dev/null
+++ b/modules/grub2/default.nix
@@ -0,0 +1,20 @@
+{ lib, pkgs, ... }:
+
+with lib;
+
+let
+  cfg = config.grub2;
+in {
+  options.grub2 = {
+    enable = mkEnableOption "grub2 coreboot primary payload";
+  };
+
+  config = lib.mkIf cfg.enable {
+    coreboot.rom.extraFiles = {
+      "fallback/payload" = {
+        type = "payload";
+        src = "${pkgs.coreboot-payload-grub}/default_payload.elf";
+      };
+    };
+  };
+}