From cdf5828fc84b5cdb02569183af5e3b83f19c10da Mon Sep 17 00:00:00 2001
From: Satria <admin@satr14.my.id>
Date: Sun, 15 Mar 2026 10:53:33 +0700
Subject: [PATCH] cpu hotplug

---
 modules/hardware/homelab.nix          | 12 ++++++++++--
 modules/hardware/misc/cpu-hotplug.nix |  5 +++++
 2 files changed, 15 insertions(+), 2 deletions(-)
 create mode 100644 modules/hardware/misc/cpu-hotplug.nix

diff --git a/modules/hardware/homelab.nix b/modules/hardware/homelab.nix
index 08bfec3..ac3cb0c 100644
--- a/modules/hardware/homelab.nix
+++ b/modules/hardware/homelab.nix
@@ -2,11 +2,19 @@
   imports = [
     ./core/firmware.nix
     ./core/igpu.nix
-    ./misc/disks.nix
+    ./misc/cpu-hotplug.nix
     ./misc/serial.nix
+    ./misc/disks.nix
   ];
   
-  boot.initrd.availableKernelModules = [ "virtio_net" "virtio_pci" "virtio_mmio" "virtio_blk" "virtio_scsi" "virtio_console" ]; 
+  boot.initrd.availableKernelModules = [
+    "virtio_net"
+    "virtio_pci"
+    "virtio_mmio"
+    "virtio_blk"
+    "virtio_scsi"
+    "virtio_console"
+  ]; 
   services = {
     qemuGuest.enable = true;
     spice-vdagentd.enable = true;
diff --git a/modules/hardware/misc/cpu-hotplug.nix b/modules/hardware/misc/cpu-hotplug.nix
new file mode 100644
index 0000000..64cd3f9
--- /dev/null
+++ b/modules/hardware/misc/cpu-hotplug.nix
@@ -0,0 +1,5 @@
+{ ... }: {
+  services.udev.extraRules = ''
+    SUBSYSTEM=="cpu", ACTION=="add", TEST=="online", ATTR{online}=="0", ATTR{online}="1"
+  '';
+}
\ No newline at end of file