add seabios

4 files changed, 90 insertions, 18 deletions

diff --git a/modules/coreinfo/default.nix b/modules/coreinfo/default.nix
index d163b021204e..775bb11cb56e 100644
--- a/modules/coreinfo/default.nix
+++ b/modules/coreinfo/default.nix
@@ -7,6 +7,7 @@ let
 in {
   options.coreinfo = {
     enable = mkEnableOption "coreinfo coreboot secondary payload";
+
     coreinfoConfig = mkOption {
       type = types.attrsOf (types.nullOr types.str);
       default = {};
diff --git a/modules/corenix/default.nix b/modules/corenix/default.nix
index 3586cf0a904b..94698782f62e 100644
--- a/modules/corenix/default.nix
+++ b/modules/corenix/default.nix
@@ -9,6 +9,7 @@ let
     src = mkOption {
       type = types.path;
     };
+
     type = mkOption {
       type = types.str;
       default = "raw";
@@ -16,13 +17,19 @@ let
   };
 in {
   options.corenix = {
+    installCommands = mkOption {
+      type = types.lines;
+    };
+
     extraFiles = mkOption {
       type = types.attrsOf (types.submodule fileOptions);
     };
+
     corebootConfig = mkOption {
       type = types.attrsOf (types.nullOr types.str);
       default = {};
     };
+
     rom = mkOption {
       readOnly = true;
       type = types.path;
@@ -30,32 +37,31 @@ in {
   };
 
   config = {
+    corenix.installCommands = let
+      filteredFiles = filterAttrs (k: v: v != null) cfg.extraFiles;
+      filesList = mapAttrsToList (k: v: v // { name = k; }) filteredFiles;
+    in concatMapStringsSep "\n" (file: 
+      if file.type == "payload" then ''
+        cbfstool $out/coreboot.rom add-payload \
+          -f "${file.src}" \
+          -n "${file.name}" \
+      '' else ''
+        cbfstool $out/coreboot.rom add \
+          -f "${file.src}" \
+          -n "${file.name}" \
+          -t "${file.type}"
+      ''
+    ) filesList;
+
     corenix.rom = let
       base = pkgs.coreboot.override {
         inherit (cfg) corebootConfig;
       };
-
-      filteredFiles = filterAttrs (k: v: v != null) cfg.extraFiles;
-      filesList = mapAttrsToList (k: v: v // { name = k; }) filteredFiles;
-
-      installCommands = concatMapStringsSep "\n" (file: 
-        if file.type == "payload" then ''
-          cbfstool $out/coreboot.rom add-payload \
-            -f "${file.src}" \
-            -n "${file.name}" \
-        '' else ''
-          cbfstool $out/coreboot.rom add \
-            -f "${file.src}" \
-            -n "${file.name}" \
-            -t "${file.type}"
-        ''
-      ) filesList;
-
     in pkgs.runCommand "coreboot-rom" {
       buildInputs = with pkgs; [ cbfstool ];
     } ''
       install -D ${base}/coreboot.rom -t $out
-      ${installCommands}
+      ${cfg.installCommands}
     '';
   };
 }
diff --git a/modules/default.nix b/modules/default.nix
index b42465acdbd3..c35a9ebc4caa 100644
--- a/modules/default.nix
+++ b/modules/default.nix
@@ -5,6 +5,7 @@
     ./corenix
     ./grub2
     ./tianocore
+    ./seabios
     ./tint
     ./nvramcui
     ./coreinfo
diff --git a/modules/seabios/default.nix b/modules/seabios/default.nix
new file mode 100644
index 000000000000..d48e36387442
--- /dev/null
+++ b/modules/seabios/default.nix
@@ -0,0 +1,64 @@
+{ config, lib, pkgs, ... }:
+
+with lib;
+
+let
+  cfg = config.seabios;
+  payloadName = if cfg.asSecondaryPayload then
+    "img/seabios"
+  else
+    "fallback/payload";
+
+in {
+  options.seabios = {
+    enable = mkEnableOption "seabios coreboot primary payload";
+
+    withVgaBios = mkOption {
+      type = types.bool;
+      default = true;
+    };
+
+    asSecondaryPayload = mkOption {
+      type = types.bool;
+      default = false;
+    };
+
+    ps2Timeout = mkOption {
+      type = types.int;
+      default = 0;
+    };
+
+    seabiosConfig = mkOption {
+      type = types.attrsOf (types.nullOr types.str);
+      default = {};
+    };
+  };
+
+  config = mkIf cfg.enable {
+    seabios.seabiosConfig = {
+      CONFIG_COREBOOT = "y";
+    } // (lib.optionalAttrs cfg.withVgaBios {
+      CONFIG_VGA_COREBOOT = "y";
+      CONFIG_BUILD_VGABIOS = "y";
+    });
+
+    corenix.extraFiles = let
+      package = pkgs.coreboot-payload-seabios.override {
+        inherit (cfg) seabiosConfig;
+      };
+    in {
+      ${payloadName} = {
+        type = "payload";
+        src = "${package}/bios.bin.elf";
+      };
+    } // (optionalAttrs cfg.withVgaBios {
+      "vgaroms/seavgabios.bin".src = "${package}/vgabios.bin";
+    });
+
+    corenix.installCommands = optionalString (cfg.ps2Timeout != 0) ''
+      cbfstool $out/coreboot.rom add-int \
+        -i ${toString cfg.ps2Timeout} \
+        -n etc/ps2-keyboard-spinup
+    '';
+  };
+}