From de86a3c1a4c8d8e66d871a659e697456ae64db74 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Marek=20Marczykowski-G=C3=B3recki?=
 <marmarek@invisiblethingslab.com>
Date: Sun, 3 Apr 2016 03:45:05 +0200
Subject: [PATCH] tools/qvm_prefs: reject invalid properties instead of
 ignoring silently

---
 qubes/tools/qvm_prefs.py | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/qubes/tools/qvm_prefs.py b/qubes/tools/qvm_prefs.py
index 336b319a..df7295e7 100644
--- a/qubes/tools/qvm_prefs.py
+++ b/qubes/tools/qvm_prefs.py
@@ -83,6 +83,8 @@ def main(args=None):
 
         return 0
 
+    if args.property not in [prop.__name__ for prop in args.vm.property_list()]:
+        parser.error('no such property: {!r}'.format(args.property))
 
     if args.value is not None:
         setattr(args.vm, args.property, args.value)