xref: /openbmc/qemu/system/runstate-hmp-cmds.c (revision ed75658a)
1 /*
2  * HMP commands related to run state
3  *
4  * Copyright IBM, Corp. 2011
5  *
6  * Authors:
7  *  Anthony Liguori   <aliguori@us.ibm.com>
8  *
9  * This work is licensed under the terms of the GNU GPL, version 2.  See
10  * the COPYING file in the top-level directory.
11  *
12  * Contributions after 2012-01-13 are licensed under the terms of the
13  * GNU GPL, version 2 or (at your option) any later version.
14  */
15 
16 #include "qemu/osdep.h"
17 #include "exec/cpu-common.h"
18 #include "monitor/hmp.h"
19 #include "monitor/monitor.h"
20 #include "qapi/error.h"
21 #include "qapi/qapi-commands-run-state.h"
22 #include "qapi/qmp/qdict.h"
23 #include "qemu/accel.h"
24 
25 void hmp_info_status(Monitor *mon, const QDict *qdict)
26 {
27     StatusInfo *info;
28 
29     info = qmp_query_status(NULL);
30 
31     monitor_printf(mon, "VM status: %s",
32                    info->running ? "running" : "paused");
33 
34     if (!info->running && info->status != RUN_STATE_PAUSED) {
35         monitor_printf(mon, " (%s)", RunState_str(info->status));
36     }
37 
38     monitor_printf(mon, "\n");
39 
40     qapi_free_StatusInfo(info);
41 }
42 
43 void hmp_one_insn_per_tb(Monitor *mon, const QDict *qdict)
44 {
45     const char *option = qdict_get_try_str(qdict, "option");
46     AccelState *accel = current_accel();
47     bool newval;
48 
49     if (!object_property_find(OBJECT(accel), "one-insn-per-tb")) {
50         monitor_printf(mon,
51                        "This accelerator does not support setting one-insn-per-tb\n");
52         return;
53     }
54 
55     if (!option || !strcmp(option, "on")) {
56         newval = true;
57     } else if (!strcmp(option, "off")) {
58         newval = false;
59     } else {
60         monitor_printf(mon, "unexpected option %s\n", option);
61         return;
62     }
63     /* If the property exists then setting it can never fail */
64     object_property_set_bool(OBJECT(accel), "one-insn-per-tb",
65                              newval, &error_abort);
66 }
67 
68 void hmp_watchdog_action(Monitor *mon, const QDict *qdict)
69 {
70     Error *err = NULL;
71     WatchdogAction action;
72     char *qapi_value;
73 
74     qapi_value = g_ascii_strdown(qdict_get_str(qdict, "action"), -1);
75     action = qapi_enum_parse(&WatchdogAction_lookup, qapi_value, -1, &err);
76     g_free(qapi_value);
77     if (err) {
78         hmp_handle_error(mon, err);
79         return;
80     }
81     qmp_watchdog_set_action(action, &error_abort);
82 }
83 
84 void watchdog_action_completion(ReadLineState *rs, int nb_args, const char *str)
85 {
86     int i;
87 
88     if (nb_args != 2) {
89         return;
90     }
91     readline_set_completion_index(rs, strlen(str));
92     for (i = 0; i < WATCHDOG_ACTION__MAX; i++) {
93         readline_add_completion_of(rs, str, WatchdogAction_str(i));
94     }
95 }
96