Move defaults/base-vm to nixos-modules/system/virtual-machine.nix

nixos-modules/system/virtual-machine.nix

@@ -0,0 +1,58 @@
+{
+  config,
+  lib,
+  ...
+}:
+let
+  cfg = config.qois.system.virtual-machine;
+in
+with lib;
+{
+  options.qois.system.virtual-machine.enable =
+    mkEnableOption "Enable qois system vm default configuration";
+
+  config = lib.mkIf cfg.enable {
+
+    boot.loader.grub.enable = true;
+
+    system.autoUpgrade.allowReboot = true;
+
+    services.qemuGuest.enable = true;
+
+    boot.initrd.availableKernelModules =
+      [
+        "ahci"
+        "xhci_pci"
+        "sr_mod"
+      ]
+      ++
+      # Taken from https://github.com/NixOS/nixpkgs/blob/master/nixos/modules/profiles/qemu-guest.nix
+      [
+        "virtio_net"
+        "virtio_pci"
+        "virtio_mmio"
+        "virtio_blk"
+        "virtio_scsi"
+        "9p"
+        "9pnet_virtio"
+      ];
+    boot.initrd.kernelModules = [
+      "virtio_balloon"
+      "virtio_console"
+      "virtio_rng"
+      "virtio_gpu"
+    ];
+
+    # Taken from https://github.com/NixOS/nixpkgs/blob/master/nixos/modules/profiles/minimal.nix
+    documentation.enable = lib.mkDefault false;
+
+    documentation.doc.enable = lib.mkDefault false;
+
+    documentation.info.enable = lib.mkDefault false;
+
+    documentation.man.enable = lib.mkDefault false;
+
+    documentation.nixos.enable = lib.mkDefault false;
+
+  };
+}