From c55fafc7c59d4a94dcd4fcdb7f48bc6c15982770 Mon Sep 17 00:00:00 2001
From: cnst <adam@cnst.dev>
Date: Sun, 13 Jul 2025 18:10:21 +0200
Subject: [PATCH] iommu fixes and such

---
 hosts/sobotka/hardware-configuration.nix | 4 ++--
 hosts/sobotka/modules.nix                | 7 ++++++-
 2 files changed, 8 insertions(+), 3 deletions(-)

diff --git a/hosts/sobotka/hardware-configuration.nix b/hosts/sobotka/hardware-configuration.nix
index fabc3d3c..be0b25df 100644
--- a/hosts/sobotka/hardware-configuration.nix
+++ b/hosts/sobotka/hardware-configuration.nix
@@ -13,8 +13,8 @@
   ];
 
   boot.initrd.availableKernelModules = ["nvme" "xhci_pci" "ahci" "usbhid" "usb_storage" "sd_mod"];
-  boot.initrd.kernelModules = [];
-  boot.kernelModules = ["amdgpu"];
+  boot.initrd.kernelModules = ["amdgpu"];
+  boot.kernelModules = [];
   boot.extraModulePackages = [];
 
   fileSystems."/" = {
diff --git a/hosts/sobotka/modules.nix b/hosts/sobotka/modules.nix
index 1249a67a..106d4820 100644
--- a/hosts/sobotka/modules.nix
+++ b/hosts/sobotka/modules.nix
@@ -4,7 +4,12 @@
       kernel = {
         variant = "latest";
         hardware = ["intel"];
-        extraKernelParams = ["fbcon=rotate:1"];
+        extraKernelParams = [
+          "fbcon=rotate:1"
+          "efi=keep_bootcon"
+          "amd_iommu=on"
+          "iommu=pt"
+        ];
       };
       loader = {
         default = {