From 77c28ceb4ed18d80f575fe84ff7c09e2a7933960 Mon Sep 17 00:00:00 2001
From: stitchy <stitchy@stitchy.moe>
Date: Mon, 31 Mar 2025 04:46:03 -0700
Subject: [PATCH] fix(tanzanite): VM crashing under workloads

Refer to linked git issue, but the tldr is that AMD gpus have a crashing
issue when they are passed to a guest VM in linux host kernels greater
than 6.6.
---
 hosts/malachite/hardware-configuration.nix | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/hosts/malachite/hardware-configuration.nix b/hosts/malachite/hardware-configuration.nix
index b9202b5..0c23c7f 100644
--- a/hosts/malachite/hardware-configuration.nix
+++ b/hosts/malachite/hardware-configuration.nix
@@ -10,6 +10,10 @@
   boot.kernelModules = [ "kvm-intel" "vfio-pci" ];
   boot.extraModulePackages = lib.attrVals [ "rtl8812au" ] config.boot.kernelPackages;
 
+  # https://gitlab.com/qemu-project/qemu/-/issues/2574
+  # Might bisect or something if I get around to it
+  boot.kernelPackages = pkgs.linuxPackages_6_6;
+
   boot.kernelParams = [
     "loglevel=3"
     "iommu=pt"