From 196c486c24c63b3695351af3b7afffc76f8a123f Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Dav=C3=AD=C3=B0=20Steinn=20Geirsson?= <david@dsg.is>
Date: Wed, 18 Mar 2026 19:34:05 +0000
Subject: [PATCH] fix: add required max_vcpus to cloud-hypervisor cpus config

cloud-hypervisor's CpusConfig requires max_vcpus when the cpus object
is present in JSON. Set it equal to boot_vcpus (no CPU hotplug).

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
---
 modules/scripts.nix | 1 +
 1 file changed, 1 insertion(+)

diff --git a/modules/scripts.nix b/modules/scripts.nix
index 5e6681b..4a4a850 100644
--- a/modules/scripts.nix
+++ b/modules/scripts.nix
@@ -946,6 +946,7 @@ let
         };
         cpus = {
           boot_vcpus = vm.cpus;
+          max_vcpus = vm.cpus;
           core_scheduling = coreScheduling;
         };
         balloon = {