migration: Give one error if trying to set COMPRESSION and XBZRLE

Reviewed-by: Fabiano Rosas <farosas@suse.de>
Signed-off-by: Juan Quintela <quintela@redhat.com>
Message-ID: <20231019110724.15324-3-quintela@redhat.com>

migration/options.c

@@ -625,6 +625,13 @@ bool migrate_caps_check(bool *old_caps, bool *new_caps, Error **errp)
         }
     }
 
+    if (new_caps[MIGRATION_CAPABILITY_COMPRESS]) {
+        if (new_caps[MIGRATION_CAPABILITY_XBZRLE]) {
+            error_setg(errp, "Compression is not compatible with xbzrle");
+            return false;
+        }
+    }
+
     return true;
 }