Finalize guest boot and exec runtime updates

tests/test_runtime_boot_check.py

@@ -0,0 +1,21 @@
+from __future__ import annotations
+
+from pyro_mcp.runtime_boot_check import _classify_result
+
+
+def test_classify_result_reports_kernel_panic() -> None:
+    reason = _classify_result(
+        firecracker_log="Successfully started microvm",
+        serial_log="Kernel panic - not syncing: VFS: Unable to mount root fs",
+        vm_alive=False,
+    )
+    assert reason == "guest kernel panic during boot"
+
+
+def test_classify_result_reports_success_when_vm_stays_alive() -> None:
+    reason = _classify_result(
+        firecracker_log="Successfully started microvm",
+        serial_log="boot log",
+        vm_alive=True,
+    )
+    assert reason is None

tests/test_vm_firecracker.py

@@ -47,6 +47,7 @@ def test_build_launch_plan_writes_expected_files(tmp_path: Path) -> None:
     rendered = json.loads(plan.config_path.read_text(encoding="utf-8"))
     assert rendered["machine-config"]["vcpu_count"] == 2
     assert rendered["network-interfaces"][0]["host_dev_name"] == "pyroabcdef12"
+    assert "acpi=off" in rendered["boot-source"]["boot_args"]
     assert "init=/opt/pyro/bin/pyro-init" in rendered["boot-source"]["boot_args"]
     assert "pyro.guest_ip=172.29.100.2" in rendered["boot-source"]["boot_args"]
     assert "pyro.gateway_ip=172.29.100.1" in rendered["boot-source"]["boot_args"]