From 6dc50bdcfc3a3e58d3fadf314d41a54fd46c3110 Mon Sep 17 00:00:00 2001
From: kalle <kallistoteles@gmail.com>
Date: Fri, 9 Jan 2026 09:59:09 +0000
Subject: [PATCH] feat: enable virtio balloon driver for dynamic memory
 resizing

Adds virtio_balloon kernel module to support live memory resize
operations from the hypervisor without requiring VM reboot.

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
---
 configuration.nix | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/configuration.nix b/configuration.nix
index 61ed7e7..995b7a0 100644
--- a/configuration.nix
+++ b/configuration.nix
@@ -20,6 +20,9 @@
     "console=tty1"
   ];
 
+  # Enable virtio balloon driver for dynamic memory resizing
+  boot.kernelModules = [ "virtio_balloon" ];
+
   systemd.services."serial-getty@ttyS0" = {
     enable = true;
     wantedBy = [ "getty.target" ]; # to start at boot