From 6318113c7682c385411d5862a5f129712f2ed777 Mon Sep 17 00:00:00 2001
From: "Agatha V. Lovelace" <agatha@technogothic.net>
Date: Fri, 22 Nov 2024 17:31:21 +0100
Subject: [PATCH] Configure Windows VM

---
 common/fragments/virt.nix     | 39 +++++++++++++++++++++++++++++++++++
 hosts/tears/configuration.nix |  4 ++--
 2 files changed, 41 insertions(+), 2 deletions(-)
 create mode 100644 common/fragments/virt.nix

diff --git a/common/fragments/virt.nix b/common/fragments/virt.nix
new file mode 100644
index 0000000..c981e11
--- /dev/null
+++ b/common/fragments/virt.nix
@@ -0,0 +1,39 @@
+{ pkgs, lib, ... }:
+{
+  boot = {
+    initrd.kernelModules = [
+      "vfio_pci"
+      "vfio"
+      "vfio_iommu_type1"
+
+      "amdgpu"
+    ];
+
+    kernelParams =
+      let
+        gpuIDs = [
+          "1002:67df" # Graphics
+          "1002:aaf0" # Audio
+        ];
+      in
+      [
+        # enable IOMMU
+        "amd_iommu=on"
+        ("vfio-pci.ids=" + lib.concatStringsSep "," gpuIDs)
+      ];
+  };
+
+  hardware.opengl.enable = true;
+  virtualisation.spiceUSBRedirection.enable = true;
+  services.openssh.settings.X11Forwarding = true;
+
+  # Virtualization
+  virtualisation.libvirtd = {
+    enable = true;
+    onBoot = "start";
+    onShutdown = "shutdown";
+  };
+
+  programs.virt-manager.enable = true;
+  users.users.agatha.extraGroups = [ "libvirtd" ];
+}
diff --git a/hosts/tears/configuration.nix b/hosts/tears/configuration.nix
index 26dc2bd..b3cbcfb 100644
--- a/hosts/tears/configuration.nix
+++ b/hosts/tears/configuration.nix
@@ -1,8 +1,8 @@
 {
   imports = [
     ./hardware-configuration.nix
-    ../../common/fragments/graphical
-    ../../common/fragments/yubikey.nix
+    ../../common/fragments/graphical/barebones.nix
+    ../../common/fragments/virt.nix
     ../../common/home_manager/common.nix
   ];