static int cons_init(struct v3_vm_info * vm, v3_cfg_tree_t * cfg)
{
struct cons_state * state = NULL;
- v3_cfg_tree_t * frontend_cfg = v3_cfg_subtree(cfg, "frontend");
- const char * frontend_tag = v3_cfg_val(frontend_cfg, "tag");
- struct vm_device * frontend = v3_find_dev(vm, frontend_tag);
+ v3_cfg_tree_t * frontend_cfg;
+ const char * frontend_tag;
+ struct vm_device * frontend;
char * dev_id = v3_cfg_val(cfg, "ID");
/* read configuration */
- V3_ASSERT(frontend_cfg);
- V3_ASSERT(frontend_tag);
- V3_ASSERT(frontend);
+ frontend_cfg = v3_cfg_subtree(cfg, "frontend");
+ if (!frontend_cfg) {
+ PrintError("No frontend specification for curses console.\n");
+ return -1;
+ }
+
+ frontend_tag = v3_cfg_val(frontend_cfg, "tag");
+ if (!frontend_tag) {
+ PrintError("No frontend device tag specified for curses console.\n");
+ return -1;
+ }
+ frontend = v3_find_dev(vm, frontend_tag);
+ if (!frontend) {
+ PrintError("Could not find frontend device %s for curses console.\n",
+ frontend_tag);
+ return -1;
+ }
/* allocate state */
state = (struct cons_state *)V3_Malloc(sizeof(struct cons_state));