monitor.c - qemu - Git at Google

 /*
  * QEMU monitor
  *
  * Copyright (c) 2003-2004 Fabrice Bellard
  *
  * Permission is hereby granted, free of charge, to any person obtaining a copy
  * of this software and associated documentation files (the "Software"), to deal
  * in the Software without restriction, including without limitation the rights
  * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
  * copies of the Software, and to permit persons to whom the Software is
  * furnished to do so, subject to the following conditions:
  *
  * The above copyright notice and this permission notice shall be included in
  * all copies or substantial portions of the Software.
  *
  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
  * THE SOFTWARE.
  */
 #include <dirent.h>
 #include "hw/hw.h"
 #include "hw/qdev.h"
 #include "hw/usb.h"
 #include "hw/pcmcia.h"
 #include "hw/pc.h"
 #include "hw/pci.h"
 #include "hw/watchdog.h"
 #include "hw/loader.h"
 #include "gdbstub.h"
 #include "net.h"
 #include "net/slirp.h"
 #include "qemu-char.h"
 #include "ui/qemu-spice.h"
 #include "sysemu.h"
 #include "monitor.h"
 #include "readline.h"
 #include "console.h"
 #include "blockdev.h"
 #include "audio/audio.h"
 #include "disas.h"
 #include "balloon.h"
 #include "qemu-timer.h"
 #include "migration.h"
 #include "kvm.h"
 #include "acl.h"
 #include "qint.h"
 #include "qfloat.h"
 #include "qlist.h"
 #include "qbool.h"
 #include "qstring.h"
 #include "qjson.h"
 #include "json-streamer.h"
 #include "json-parser.h"
 #include "osdep.h"
 #include "cpu.h"
 #include "trace.h"
 #include "trace/control.h"
 #ifdef CONFIG_TRACE_SIMPLE
 #include "trace/simple.h"
 #endif
 #include "ui/qemu-spice.h"
 #include "memory.h"
 #include "qmp-commands.h"
 #include "hmp.h"

 /* for pic/irq_info */
 #if defined(TARGET_SPARC)
 #include "hw/sun4m.h"
 #endif
 #include "hw/lm32_pic.h"

 //#define DEBUG
 //#define DEBUG_COMPLETION

 /*
  * Supported types:
  *
  * 'F'          filename
  * 'B'          block device name
  * 's'          string (accept optional quote)
  * 'O'          option string of the form NAME=VALUE,...
  *              parsed according to QemuOptsList given by its name
  *              Example: 'device:O' uses qemu_device_opts.
  *              Restriction: only lists with empty desc are supported
  *              TODO lift the restriction
  * 'i'          32 bit integer
  * 'l'          target long (32 or 64 bit)
  * 'M'          just like 'l', except in user mode the value is
  *              multiplied by 2^20 (think Mebibyte)
  * 'o'          octets (aka bytes)
  *              user mode accepts an optional T, t, G, g, M, m, K, k
  *              suffix, which multiplies the value by 2^40 for
  *              suffixes T and t, 2^30 for suffixes G and g, 2^20 for
  *              M and m, 2^10 for K and k
  * 'T'          double
  *              user mode accepts an optional ms, us, ns suffix,
  *              which divides the value by 1e3, 1e6, 1e9, respectively
  * '/'          optional gdb-like print format (like "/10x")
  *
  * '?'          optional type (for all types, except '/')
  * '.'          other form of optional type (for 'i' and 'l')
  * 'b'          boolean
  *              user mode accepts "on" or "off"
  * '-'          optional parameter (eg. '-f')
  *
  */

 typedef struct MonitorCompletionData MonitorCompletionData;
 struct MonitorCompletionData {
     Monitor *mon;
     void (*user_print)(Monitor *mon, const QObject *data);
 };

 typedef struct mon_cmd_t {
     const char *name;
     const char *args_type;
     const char *params;
     const char *help;
     void (*user_print)(Monitor *mon, const QObject *data);
     union {
         void (*info)(Monitor *mon);
         void (*cmd)(Monitor *mon, const QDict *qdict);
         int  (*cmd_new)(Monitor *mon, const QDict *params, QObject **ret_data);
         int  (*cmd_async)(Monitor *mon, const QDict *params,
                           MonitorCompletion *cb, void *opaque);
     } mhandler;
     bool qapi;
     int flags;
 } mon_cmd_t;

 /* file descriptors passed via SCM_RIGHTS */
 typedef struct mon_fd_t mon_fd_t;
 struct mon_fd_t {
     char *name;
     int fd;
     QLIST_ENTRY(mon_fd_t) next;
 };

 typedef struct MonitorControl {
     QObject *id;
     JSONMessageParser parser;
     int command_mode;
 } MonitorControl;

 struct Monitor {
     CharDriverState *chr;
     int mux_out;
     int reset_seen;
     int flags;
     int suspend_cnt;
     uint8_t outbuf[1024];
     int outbuf_index;
     ReadLineState *rs;
     MonitorControl *mc;
     CPUState *mon_cpu;
     BlockDriverCompletionFunc *password_completion_cb;
     void *password_opaque;
 #ifdef CONFIG_DEBUG_MONITOR
     int print_calls_nr;
 #endif
     QError *error;
     QLIST_HEAD(,mon_fd_t) fds;
     QLIST_ENTRY(Monitor) entry;
 };

 #ifdef CONFIG_DEBUG_MONITOR
 #define MON_DEBUG(fmt, ...) do {    \
     fprintf(stderr, "Monitor: ");       \
     fprintf(stderr, fmt, ## __VA_ARGS__); } while (0)

 static inline void mon_print_count_inc(Monitor *mon)
 {
     mon->print_calls_nr++;
 }

 static inline void mon_print_count_init(Monitor *mon)
 {
     mon->print_calls_nr = 0;
 }

 static inline int mon_print_count_get(const Monitor *mon)
 {
     return mon->print_calls_nr;
 }

 #else /* !CONFIG_DEBUG_MONITOR */
 #define MON_DEBUG(fmt, ...) do { } while (0)
 static inline void mon_print_count_inc(Monitor *mon) { }
 static inline void mon_print_count_init(Monitor *mon) { }
 static inline int mon_print_count_get(const Monitor *mon) { return 0; }
 #endif /* CONFIG_DEBUG_MONITOR */

 /* QMP checker flags */
 #define QMP_ACCEPT_UNKNOWNS 1

 static QLIST_HEAD(mon_list, Monitor) mon_list;

 static mon_cmd_t mon_cmds[];
 static mon_cmd_t info_cmds[];

 static const mon_cmd_t qmp_cmds[];

 Monitor *cur_mon;
 Monitor *default_mon;

 static void monitor_command_cb(Monitor *mon, const char *cmdline,
                                void *opaque);

 static inline int qmp_cmd_mode(const Monitor *mon)
 {
     return (mon->mc ? mon->mc->command_mode : 0);
 }

 /* Return true if in control mode, false otherwise */
 static inline int monitor_ctrl_mode(const Monitor *mon)
 {
     return (mon->flags & MONITOR_USE_CONTROL);
 }

 /* Return non-zero iff we have a current monitor, and it is in QMP mode.  */
 int monitor_cur_is_qmp(void)
 {
     return cur_mon && monitor_ctrl_mode(cur_mon);
 }

 void monitor_read_command(Monitor *mon, int show_prompt)
 {
     if (!mon->rs)
         return;

     readline_start(mon->rs, "(qemu) ", 0, monitor_command_cb, NULL);
     if (show_prompt)
         readline_show_prompt(mon->rs);
 }

 int monitor_read_password(Monitor *mon, ReadLineFunc *readline_func,
                           void *opaque)
 {
     if (monitor_ctrl_mode(mon)) {
         qerror_report(QERR_MISSING_PARAMETER, "password");
         return -EINVAL;
     } else if (mon->rs) {
         readline_start(mon->rs, "Password: ", 1, readline_func, opaque);
         /* prompt is printed on return from the command handler */
         return 0;
     } else {
         monitor_printf(mon, "terminal does not support password prompting\n");
         return -ENOTTY;
     }
 }

 void monitor_flush(Monitor *mon)
 {
     if (mon && mon->outbuf_index != 0 && !mon->mux_out) {
         qemu_chr_fe_write(mon->chr, mon->outbuf, mon->outbuf_index);
         mon->outbuf_index = 0;
     }
 }

 /* flush at every end of line or if the buffer is full */
 static void monitor_puts(Monitor *mon, const char *str)
 {
     char c;

     for(;;) {
         c = *str++;
         if (c == '\0')
             break;
         if (c == '\n')
             mon->outbuf[mon->outbuf_index++] = '\r';
         mon->outbuf[mon->outbuf_index++] = c;
         if (mon->outbuf_index >= (sizeof(mon->outbuf) - 1)
             || c == '\n')
             monitor_flush(mon);
     }
 }

 void monitor_vprintf(Monitor *mon, const char *fmt, va_list ap)
 {
     char buf[4096];

     if (!mon)
         return;

     mon_print_count_inc(mon);

     if (monitor_ctrl_mode(mon)) {
         return;
     }

     vsnprintf(buf, sizeof(buf), fmt, ap);
     monitor_puts(mon, buf);
 }

 void monitor_printf(Monitor *mon, const char *fmt, ...)
 {
     va_list ap;
     va_start(ap, fmt);
     monitor_vprintf(mon, fmt, ap);
     va_end(ap);
 }

 void monitor_print_filename(Monitor *mon, const char *filename)
 {
     int i;

     for (i = 0; filename[i]; i++) {
         switch (filename[i]) {
         case ' ':
         case '"':
         case '\\':
             monitor_printf(mon, "\\%c", filename[i]);
             break;
         case '\t':
             monitor_printf(mon, "\\t");
             break;
         case '\r':
             monitor_printf(mon, "\\r");
             break;
         case '\n':
             monitor_printf(mon, "\\n");
             break;
         default:
             monitor_printf(mon, "%c", filename[i]);
             break;
         }
     }
 }

 static int GCC_FMT_ATTR(2, 3) monitor_fprintf(FILE *stream,
                                               const char *fmt, ...)
 {
     va_list ap;
     va_start(ap, fmt);
     monitor_vprintf((Monitor *)stream, fmt, ap);
     va_end(ap);
     return 0;
 }

 static void monitor_user_noop(Monitor *mon, const QObject *data) { }

 static inline int handler_is_qobject(const mon_cmd_t *cmd)
 {
     return cmd->user_print != NULL;
 }

 static inline bool handler_is_async(const mon_cmd_t *cmd)
 {
     return cmd->flags & MONITOR_CMD_ASYNC;
 }

 static inline int monitor_has_error(const Monitor *mon)
 {
     return mon->error != NULL;
 }

 static void monitor_json_emitter(Monitor *mon, const QObject *data)
 {
     QString *json;

     json = mon->flags & MONITOR_USE_PRETTY ? qobject_to_json_pretty(data) :
                                              qobject_to_json(data);
     assert(json != NULL);

     qstring_append_chr(json, '\n');
     monitor_puts(mon, qstring_get_str(json));

     QDECREF(json);
 }

 static void monitor_protocol_emitter(Monitor *mon, QObject *data)
 {
     QDict *qmp;

     trace_monitor_protocol_emitter(mon);

     qmp = qdict_new();

     if (!monitor_has_error(mon)) {
         /* success response */
         if (data) {
             qobject_incref(data);
             qdict_put_obj(qmp, "return", data);
         } else {
             /* return an empty QDict by default */
             qdict_put(qmp, "return", qdict_new());
         }
     } else {
         /* error response */
         qdict_put(mon->error->error, "desc", qerror_human(mon->error));
         qdict_put(qmp, "error", mon->error->error);
         QINCREF(mon->error->error);
         QDECREF(mon->error);
         mon->error = NULL;
     }

     if (mon->mc->id) {
         qdict_put_obj(qmp, "id", mon->mc->id);
         mon->mc->id = NULL;
     }

     monitor_json_emitter(mon, QOBJECT(qmp));
     QDECREF(qmp);
 }

 static void timestamp_put(QDict *qdict)
 {
     int err;
     QObject *obj;
     qemu_timeval tv;

     err = qemu_gettimeofday(&tv);
     if (err < 0)
         return;

     obj = qobject_from_jsonf("{ 'seconds': %" PRId64 ", "
                                 "'microseconds': %" PRId64 " }",
                                 (int64_t) tv.tv_sec, (int64_t) tv.tv_usec);
     qdict_put_obj(qdict, "timestamp", obj);
 }

 /**
  * monitor_protocol_event(): Generate a Monitor event
  *
  * Event-specific data can be emitted through the (optional) 'data' parameter.
  */
 void monitor_protocol_event(MonitorEvent event, QObject *data)
 {
     QDict *qmp;
     const char *event_name;
     Monitor *mon;

     assert(event < QEVENT_MAX);

     switch (event) {
         case QEVENT_SHUTDOWN:
             event_name = "SHUTDOWN";
             break;
         case QEVENT_RESET:
             event_name = "RESET";
             break;
         case QEVENT_POWERDOWN:
             event_name = "POWERDOWN";
             break;
         case QEVENT_STOP:
             event_name = "STOP";
             break;
         case QEVENT_RESUME:
             event_name = "RESUME";
             break;
         case QEVENT_VNC_CONNECTED:
             event_name = "VNC_CONNECTED";
             break;
         case QEVENT_VNC_INITIALIZED:
             event_name = "VNC_INITIALIZED";
             break;
         case QEVENT_VNC_DISCONNECTED:
             event_name = "VNC_DISCONNECTED";
             break;
         case QEVENT_BLOCK_IO_ERROR:
             event_name = "BLOCK_IO_ERROR";
             break;
         case QEVENT_RTC_CHANGE:
             event_name = "RTC_CHANGE";
             break;
         case QEVENT_WATCHDOG:
             event_name = "WATCHDOG";
             break;
         case QEVENT_SPICE_CONNECTED:
             event_name = "SPICE_CONNECTED";
             break;
         case QEVENT_SPICE_INITIALIZED:
             event_name = "SPICE_INITIALIZED";
             break;
         case QEVENT_SPICE_DISCONNECTED:
             event_name = "SPICE_DISCONNECTED";
             break;
         case QEVENT_BLOCK_JOB_COMPLETED:
             event_name = "BLOCK_JOB_COMPLETED";
             break;
         case QEVENT_BLOCK_JOB_CANCELLED:
             event_name = "BLOCK_JOB_CANCELLED";
             break;
         case QEVENT_DEVICE_TRAY_MOVED:
              event_name = "DEVICE_TRAY_MOVED";
             break;
         case QEVENT_SUSPEND:
             event_name = "SUSPEND";
             break;
         case QEVENT_WAKEUP:
             event_name = "WAKEUP";
             break;
         default:
             abort();
             break;
     }

     qmp = qdict_new();
     timestamp_put(qmp);
     qdict_put(qmp, "event", qstring_from_str(event_name));
     if (data) {
         qobject_incref(data);
         qdict_put_obj(qmp, "data", data);
     }

     QLIST_FOREACH(mon, &mon_list, entry) {
         if (monitor_ctrl_mode(mon) && qmp_cmd_mode(mon)) {
             monitor_json_emitter(mon, QOBJECT(qmp));
         }
     }
     QDECREF(qmp);
 }

 static int do_qmp_capabilities(Monitor *mon, const QDict *params,
                                QObject **ret_data)
 {
     /* Will setup QMP capabilities in the future */
     if (monitor_ctrl_mode(mon)) {
         mon->mc->command_mode = 1;
     }

     return 0;
 }

 static void handle_user_command(Monitor *mon, const char *cmdline);

 char *qmp_human_monitor_command(const char *command_line, bool has_cpu_index,
                                 int64_t cpu_index, Error **errp)
 {
     char *output = NULL;
     Monitor *old_mon, hmp;
     CharDriverState mchar;

     memset(&hmp, 0, sizeof(hmp));
     qemu_chr_init_mem(&mchar);
     hmp.chr = &mchar;

     old_mon = cur_mon;
     cur_mon = &hmp;

     if (has_cpu_index) {
         int ret = monitor_set_cpu(cpu_index);
         if (ret < 0) {
             cur_mon = old_mon;
             error_set(errp, QERR_INVALID_PARAMETER_VALUE, "cpu-index",
                       "a CPU number");
             goto out;
         }
     }

     handle_user_command(&hmp, command_line);
     cur_mon = old_mon;

     if (qemu_chr_mem_osize(hmp.chr) > 0) {
         QString *str = qemu_chr_mem_to_qs(hmp.chr);
         output = g_strdup(qstring_get_str(str));
         QDECREF(str);
     } else {
         output = g_strdup("");
     }

 out:
     qemu_chr_close_mem(hmp.chr);
     return output;
 }

 static int compare_cmd(const char *name, const char *list)
 {
     const char *p, *pstart;
     int len;
     len = strlen(name);
     p = list;
     for(;;) {
         pstart = p;
         p = strchr(p, '|');
         if (!p)
             p = pstart + strlen(pstart);
         if ((p - pstart) == len && !memcmp(pstart, name, len))
             return 1;
         if (*p == '\0')
             break;
         p++;
     }
     return 0;
 }

 static void help_cmd_dump(Monitor *mon, const mon_cmd_t *cmds,
                           const char *prefix, const char *name)
 {
     const mon_cmd_t *cmd;

     for(cmd = cmds; cmd->name != NULL; cmd++) {
         if (!name || !strcmp(name, cmd->name))
             monitor_printf(mon, "%s%s %s -- %s\n", prefix, cmd->name,
                            cmd->params, cmd->help);
     }
 }

 static void help_cmd(Monitor *mon, const char *name)
 {
     if (name && !strcmp(name, "info")) {
         help_cmd_dump(mon, info_cmds, "info ", NULL);
     } else {
         help_cmd_dump(mon, mon_cmds, "", name);
         if (name && !strcmp(name, "log")) {
             const CPULogItem *item;
             monitor_printf(mon, "Log items (comma separated):\n");
             monitor_printf(mon, "%-10s %s\n", "none", "remove all logs");
             for(item = cpu_log_items; item->mask != 0; item++) {
                 monitor_printf(mon, "%-10s %s\n", item->name, item->help);
             }
         }
     }
 }

 static void do_help_cmd(Monitor *mon, const QDict *qdict)
 {
     help_cmd(mon, qdict_get_try_str(qdict, "name"));
 }

 static void do_trace_event_set_state(Monitor *mon, const QDict *qdict)
 {
     const char *tp_name = qdict_get_str(qdict, "name");
     bool new_state = qdict_get_bool(qdict, "option");
     int ret = trace_event_set_state(tp_name, new_state);

     if (!ret) {
         monitor_printf(mon, "unknown event name \"%s\"\n", tp_name);
     }
 }

 #ifdef CONFIG_TRACE_SIMPLE
 static void do_trace_file(Monitor *mon, const QDict *qdict)
 {
     const char *op = qdict_get_try_str(qdict, "op");
     const char *arg = qdict_get_try_str(qdict, "arg");

     if (!op) {
         st_print_trace_file_status((FILE *)mon, &monitor_fprintf);
     } else if (!strcmp(op, "on")) {
         st_set_trace_file_enabled(true);
     } else if (!strcmp(op, "off")) {
         st_set_trace_file_enabled(false);
     } else if (!strcmp(op, "flush")) {
         st_flush_trace_buffer();
     } else if (!strcmp(op, "set")) {
         if (arg) {
             st_set_trace_file(arg);
         }
     } else {
         monitor_printf(mon, "unexpected argument \"%s\"\n", op);
         help_cmd(mon, "trace-file");
     }
 }
 #endif

 static void user_monitor_complete(void *opaque, QObject *ret_data)
 {
     MonitorCompletionData *data = (MonitorCompletionData *)opaque;

     if (ret_data) {
         data->user_print(data->mon, ret_data);
     }
     monitor_resume(data->mon);
     g_free(data);
 }

 static void qmp_monitor_complete(void *opaque, QObject *ret_data)
 {
     monitor_protocol_emitter(opaque, ret_data);
 }

 static int qmp_async_cmd_handler(Monitor *mon, const mon_cmd_t *cmd,
                                  const QDict *params)
 {
     return cmd->mhandler.cmd_async(mon, params, qmp_monitor_complete, mon);
 }

 static void user_async_cmd_handler(Monitor *mon, const mon_cmd_t *cmd,
                                    const QDict *params)
 {
     int ret;

     MonitorCompletionData *cb_data = g_malloc(sizeof(*cb_data));
     cb_data->mon = mon;
     cb_data->user_print = cmd->user_print;
     monitor_suspend(mon);
     ret = cmd->mhandler.cmd_async(mon, params,
                                   user_monitor_complete, cb_data);
     if (ret < 0) {
         monitor_resume(mon);
         g_free(cb_data);
     }
 }

 static void do_info(Monitor *mon, const QDict *qdict)
 {
     const mon_cmd_t *cmd;
     const char *item = qdict_get_try_str(qdict, "item");

     if (!item) {
         goto help;
     }

     for (cmd = info_cmds; cmd->name != NULL; cmd++) {
         if (compare_cmd(item, cmd->name))
             break;
     }

     if (cmd->name == NULL) {
         goto help;
     }

     cmd->mhandler.info(mon);
     return;

 help:
     help_cmd(mon, "info");
 }

 CommandInfoList *qmp_query_commands(Error **errp)
 {
     CommandInfoList *info, *cmd_list = NULL;
     const mon_cmd_t *cmd;

     for (cmd = qmp_cmds; cmd->name != NULL; cmd++) {
         info = g_malloc0(sizeof(*info));
         info->value = g_malloc0(sizeof(*info->value));
         info->value->name = g_strdup(cmd->name);

         info->next = cmd_list;
         cmd_list = info;
     }

     return cmd_list;
 }

 /* set the current CPU defined by the user */
 int monitor_set_cpu(int cpu_index)
 {
     CPUState *env;

     for(env = first_cpu; env != NULL; env = env->next_cpu) {
         if (env->cpu_index == cpu_index) {
             cur_mon->mon_cpu = env;
             return 0;
         }
     }
     return -1;
 }

 static CPUState *mon_get_cpu(void)
 {
     if (!cur_mon->mon_cpu) {
         monitor_set_cpu(0);
     }
     cpu_synchronize_state(cur_mon->mon_cpu);
     return cur_mon->mon_cpu;
 }

 int monitor_get_cpu_index(void)
 {
     return mon_get_cpu()->cpu_index;
 }

 static void do_info_registers(Monitor *mon)
 {
     CPUState *env;
     env = mon_get_cpu();
 #ifdef TARGET_I386
     cpu_dump_state(env, (FILE *)mon, monitor_fprintf,
                    X86_DUMP_FPU);
 #else
     cpu_dump_state(env, (FILE *)mon, monitor_fprintf,
                    0);
 #endif
 }

 static void do_info_jit(Monitor *mon)
 {
     dump_exec_info((FILE *)mon, monitor_fprintf);
 }

 static void do_info_history(Monitor *mon)
 {
     int i;
     const char *str;

     if (!mon->rs)
         return;
     i = 0;
     for(;;) {
         str = readline_get_history(mon->rs, i);
         if (!str)
             break;
         monitor_printf(mon, "%d: '%s'\n", i, str);
         i++;
     }
 }

 #if defined(TARGET_PPC)
 /* XXX: not implemented in other targets */
 static void do_info_cpu_stats(Monitor *mon)
 {
     CPUState *env;

     env = mon_get_cpu();
     cpu_dump_statistics(env, (FILE *)mon, &monitor_fprintf, 0);
 }
 #endif

 #if defined(CONFIG_TRACE_SIMPLE)
 static void do_info_trace(Monitor *mon)
 {
     st_print_trace((FILE *)mon, &monitor_fprintf);
 }
 #endif

 static void do_trace_print_events(Monitor *mon)
 {
     trace_print_events((FILE *)mon, &monitor_fprintf);
 }

 static int add_graphics_client(Monitor *mon, const QDict *qdict, QObject **ret_data)
 {
     const char *protocol  = qdict_get_str(qdict, "protocol");
     const char *fdname = qdict_get_str(qdict, "fdname");
     CharDriverState *s;

     if (strcmp(protocol, "spice") == 0) {
         int fd = monitor_get_fd(mon, fdname);
         int skipauth = qdict_get_try_bool(qdict, "skipauth", 0);
         int tls = qdict_get_try_bool(qdict, "tls", 0);
         if (!using_spice) {
             /* correct one? spice isn't a device ,,, */
             qerror_report(QERR_DEVICE_NOT_ACTIVE, "spice");
             return -1;
         }
         if (qemu_spice_display_add_client(fd, skipauth, tls) < 0) {
             close(fd);
         }
         return 0;
 #ifdef CONFIG_VNC
     } else if (strcmp(protocol, "vnc") == 0) {
 	int fd = monitor_get_fd(mon, fdname);
         int skipauth = qdict_get_try_bool(qdict, "skipauth", 0);
 	vnc_display_add_client(NULL, fd, skipauth);
 	return 0;
 #endif
     } else if ((s = qemu_chr_find(protocol)) != NULL) {
 	int fd = monitor_get_fd(mon, fdname);
 	if (qemu_chr_add_client(s, fd) < 0) {
 	    qerror_report(QERR_ADD_CLIENT_FAILED);
 	    return -1;
 	}
 	return 0;
     }

     qerror_report(QERR_INVALID_PARAMETER, "protocol");
     return -1;
 }

 static int client_migrate_info(Monitor *mon, const QDict *qdict,
                                MonitorCompletion cb, void *opaque)
 {
     const char *protocol = qdict_get_str(qdict, "protocol");
     const char *hostname = qdict_get_str(qdict, "hostname");
     const char *subject  = qdict_get_try_str(qdict, "cert-subject");
     int port             = qdict_get_try_int(qdict, "port", -1);
     int tls_port         = qdict_get_try_int(qdict, "tls-port", -1);
     int ret;

     if (strcmp(protocol, "spice") == 0) {
         if (!using_spice) {
             qerror_report(QERR_DEVICE_NOT_ACTIVE, "spice");
             return -1;
         }

         ret = qemu_spice_migrate_info(hostname, port, tls_port, subject,
                                       cb, opaque);
         if (ret != 0) {
             qerror_report(QERR_UNDEFINED_ERROR);
             return -1;
         }
         return 0;
     }

     qerror_report(QERR_INVALID_PARAMETER, "protocol");
     return -1;
 }

 static int do_screen_dump(Monitor *mon, const QDict *qdict, QObject **ret_data)
 {
     vga_hw_screen_dump(qdict_get_str(qdict, "filename"));
     return 0;
 }

 static void do_logfile(Monitor *mon, const QDict *qdict)
 {
     cpu_set_log_filename(qdict_get_str(qdict, "filename"));
 }

 static void do_log(Monitor *mon, const QDict *qdict)
 {
     int mask;
     const char *items = qdict_get_str(qdict, "items");

     if (!strcmp(items, "none")) {
         mask = 0;
     } else {
         mask = cpu_str_to_log_mask(items);
         if (!mask) {
             help_cmd(mon, "log");
             return;
         }
     }
     cpu_set_log(mask);
 }

 static void do_singlestep(Monitor *mon, const QDict *qdict)
 {
     const char *option = qdict_get_try_str(qdict, "option");
     if (!option || !strcmp(option, "on")) {
         singlestep = 1;
     } else if (!strcmp(option, "off")) {
         singlestep = 0;
     } else {
         monitor_printf(mon, "unexpected option %s\n", option);
     }
 }

 static void do_gdbserver(Monitor *mon, const QDict *qdict)
 {
     const char *device = qdict_get_try_str(qdict, "device");
     if (!device)
         device = "tcp::" DEFAULT_GDBSTUB_PORT;
     if (gdbserver_start(device) < 0) {
         monitor_printf(mon, "Could not open gdbserver on device '%s'\n",
                        device);
     } else if (strcmp(device, "none") == 0) {
         monitor_printf(mon, "Disabled gdbserver\n");
     } else {
         monitor_printf(mon, "Waiting for gdb connection on device '%s'\n",
                        device);
     }
 }

 static void do_watchdog_action(Monitor *mon, const QDict *qdict)
 {
     const char *action = qdict_get_str(qdict, "action");
     if (select_watchdog_action(action) == -1) {
         monitor_printf(mon, "Unknown watchdog action '%s'\n", action);
     }
 }

 static void monitor_printc(Monitor *mon, int c)
 {
     monitor_printf(mon, "'");
     switch(c) {
     case '\'':
         monitor_printf(mon, "\\'");
         break;
     case '\\':
         monitor_printf(mon, "\\\\");
         break;
     case '\n':
         monitor_printf(mon, "\\n");
         break;
     case '\r':
         monitor_printf(mon, "\\r");
         break;
     default:
         if (c >= 32 && c <= 126) {
             monitor_printf(mon, "%c", c);
         } else {
             monitor_printf(mon, "\\x%02x", c);
         }
         break;
     }
     monitor_printf(mon, "'");
 }

 static void memory_dump(Monitor *mon, int count, int format, int wsize,
                         target_phys_addr_t addr, int is_physical)
 {
     CPUState *env;
     int l, line_size, i, max_digits, len;
     uint8_t buf[16];
     uint64_t v;

     if (format == 'i') {
         int flags;
         flags = 0;
         env = mon_get_cpu();
 #ifdef TARGET_I386
         if (wsize == 2) {
             flags = 1;
         } else if (wsize == 4) {
             flags = 0;
         } else {
             /* as default we use the current CS size */
             flags = 0;
             if (env) {
 #ifdef TARGET_X86_64
                 if ((env->efer & MSR_EFER_LMA) &&
                     (env->segs[R_CS].flags & DESC_L_MASK))
                     flags = 2;
                 else
 #endif
                 if (!(env->segs[R_CS].flags & DESC_B_MASK))
                     flags = 1;
             }
         }
 #endif
         monitor_disas(mon, env, addr, count, is_physical, flags);
         return;
     }

     len = wsize * count;
     if (wsize == 1)
         line_size = 8;
     else
         line_size = 16;
     max_digits = 0;

     switch(format) {
     case 'o':
         max_digits = (wsize * 8 + 2) / 3;
         break;
     default:
     case 'x':
         max_digits = (wsize * 8) / 4;
         break;
     case 'u':
     case 'd':
         max_digits = (wsize * 8 * 10 + 32) / 33;
         break;
     case 'c':
         wsize = 1;
         break;
     }

     while (len > 0) {
         if (is_physical)
             monitor_printf(mon, TARGET_FMT_plx ":", addr);
         else
             monitor_printf(mon, TARGET_FMT_lx ":", (target_ulong)addr);
         l = len;
         if (l > line_size)
             l = line_size;
         if (is_physical) {
             cpu_physical_memory_read(addr, buf, l);
         } else {
             env = mon_get_cpu();
             if (cpu_memory_rw_debug(env, addr, buf, l, 0) < 0) {
                 monitor_printf(mon, " Cannot access memory\n");
                 break;
             }
         }
         i = 0;
         while (i < l) {
             switch(wsize) {
             default:
             case 1:
                 v = ldub_raw(buf + i);
                 break;
             case 2:
                 v = lduw_raw(buf + i);
                 break;
             case 4:
                 v = (uint32_t)ldl_raw(buf + i);
                 break;
             case 8:
                 v = ldq_raw(buf + i);
                 break;
             }
             monitor_printf(mon, " ");
             switch(format) {
             case 'o':
                 monitor_printf(mon, "%#*" PRIo64, max_digits, v);
                 break;
             case 'x':
                 monitor_printf(mon, "0x%0*" PRIx64, max_digits, v);
                 break;
             case 'u':
                 monitor_printf(mon, "%*" PRIu64, max_digits, v);
                 break;
             case 'd':
                 monitor_printf(mon, "%*" PRId64, max_digits, v);
                 break;
             case 'c':
                 monitor_printc(mon, v);
                 break;
             }
             i += wsize;
         }
         monitor_printf(mon, "\n");
         addr += l;
         len -= l;
     }
 }

 static void do_memory_dump(Monitor *mon, const QDict *qdict)
 {
     int count = qdict_get_int(qdict, "count");
     int format = qdict_get_int(qdict, "format");
     int size = qdict_get_int(qdict, "size");
     target_long addr = qdict_get_int(qdict, "addr");

     memory_dump(mon, count, format, size, addr, 0);
 }

 static void do_physical_memory_dump(Monitor *mon, const QDict *qdict)
 {
     int count = qdict_get_int(qdict, "count");
     int format = qdict_get_int(qdict, "format");
     int size = qdict_get_int(qdict, "size");
     target_phys_addr_t addr = qdict_get_int(qdict, "addr");

     memory_dump(mon, count, format, size, addr, 1);
 }

 static void do_print(Monitor *mon, const QDict *qdict)
 {
     int format = qdict_get_int(qdict, "format");
     target_phys_addr_t val = qdict_get_int(qdict, "val");

 #if TARGET_PHYS_ADDR_BITS == 32
     switch(format) {
     case 'o':
         monitor_printf(mon, "%#o", val);
         break;
     case 'x':
         monitor_printf(mon, "%#x", val);
         break;
     case 'u':
         monitor_printf(mon, "%u", val);
         break;
     default:
     case 'd':
         monitor_printf(mon, "%d", val);
         break;
     case 'c':
         monitor_printc(mon, val);
         break;
     }
 #else
     switch(format) {
     case 'o':
         monitor_printf(mon, "%#" PRIo64, val);
         break;
     case 'x':
         monitor_printf(mon, "%#" PRIx64, val);
         break;
     case 'u':
         monitor_printf(mon, "%" PRIu64, val);
         break;
     default:
     case 'd':
         monitor_printf(mon, "%" PRId64, val);
         break;
     case 'c':
         monitor_printc(mon, val);
         break;
     }
 #endif
     monitor_printf(mon, "\n");
 }

 static void do_sum(Monitor *mon, const QDict *qdict)
 {
     uint32_t addr;
     uint16_t sum;
     uint32_t start = qdict_get_int(qdict, "start");
     uint32_t size = qdict_get_int(qdict, "size");

     sum = 0;
     for(addr = start; addr < (start + size); addr++) {
         uint8_t val = ldub_phys(addr);
         /* BSD sum algorithm ('sum' Unix command) */
         sum = (sum >> 1) | (sum << 15);
         sum += val;
     }
     monitor_printf(mon, "%05d\n", sum);
 }

 typedef struct {
     int keycode;
     const char *name;
 } KeyDef;

 static const KeyDef key_defs[] = {
     { 0x2a, "shift" },
     { 0x36, "shift_r" },

     { 0x38, "alt" },
     { 0xb8, "alt_r" },
     { 0x64, "altgr" },
     { 0xe4, "altgr_r" },
     { 0x1d, "ctrl" },
     { 0x9d, "ctrl_r" },

     { 0xdd, "menu" },

     { 0x01, "esc" },

     { 0x02, "1" },
     { 0x03, "2" },
     { 0x04, "3" },
     { 0x05, "4" },
     { 0x06, "5" },
     { 0x07, "6" },
     { 0x08, "7" },
     { 0x09, "8" },
     { 0x0a, "9" },
     { 0x0b, "0" },
     { 0x0c, "minus" },
     { 0x0d, "equal" },
     { 0x0e, "backspace" },

     { 0x0f, "tab" },
     { 0x10, "q" },
     { 0x11, "w" },
     { 0x12, "e" },
     { 0x13, "r" },
     { 0x14, "t" },
     { 0x15, "y" },
     { 0x16, "u" },
     { 0x17, "i" },
     { 0x18, "o" },
     { 0x19, "p" },
     { 0x1a, "bracket_left" },
     { 0x1b, "bracket_right" },
     { 0x1c, "ret" },

     { 0x1e, "a" },
     { 0x1f, "s" },
     { 0x20, "d" },
     { 0x21, "f" },
     { 0x22, "g" },
     { 0x23, "h" },
     { 0x24, "j" },
     { 0x25, "k" },
     { 0x26, "l" },
     { 0x27, "semicolon" },
     { 0x28, "apostrophe" },
     { 0x29, "grave_accent" },

     { 0x2b, "backslash" },
     { 0x2c, "z" },
     { 0x2d, "x" },
     { 0x2e, "c" },
     { 0x2f, "v" },
     { 0x30, "b" },
     { 0x31, "n" },
     { 0x32, "m" },
     { 0x33, "comma" },
     { 0x34, "dot" },
     { 0x35, "slash" },

     { 0x37, "asterisk" },

     { 0x39, "spc" },
     { 0x3a, "caps_lock" },
     { 0x3b, "f1" },
     { 0x3c, "f2" },
     { 0x3d, "f3" },
     { 0x3e, "f4" },
     { 0x3f, "f5" },
     { 0x40, "f6" },
     { 0x41, "f7" },
     { 0x42, "f8" },
     { 0x43, "f9" },
     { 0x44, "f10" },
     { 0x45, "num_lock" },
     { 0x46, "scroll_lock" },

     { 0xb5, "kp_divide" },
     { 0x37, "kp_multiply" },
     { 0x4a, "kp_subtract" },
     { 0x4e, "kp_add" },
     { 0x9c, "kp_enter" },
     { 0x53, "kp_decimal" },
     { 0x54, "sysrq" },

     { 0x52, "kp_0" },
     { 0x4f, "kp_1" },
     { 0x50, "kp_2" },
     { 0x51, "kp_3" },
     { 0x4b, "kp_4" },
     { 0x4c, "kp_5" },
     { 0x4d, "kp_6" },
     { 0x47, "kp_7" },
     { 0x48, "kp_8" },
     { 0x49, "kp_9" },

     { 0x56, "<" },

     { 0x57, "f11" },
     { 0x58, "f12" },

     { 0xb7, "print" },

     { 0xc7, "home" },
     { 0xc9, "pgup" },
     { 0xd1, "pgdn" },
     { 0xcf, "end" },

     { 0xcb, "left" },
     { 0xc8, "up" },
     { 0xd0, "down" },
     { 0xcd, "right" },

     { 0xd2, "insert" },
     { 0xd3, "delete" },
 #if defined(TARGET_SPARC) && !defined(TARGET_SPARC64)
     { 0xf0, "stop" },
     { 0xf1, "again" },
     { 0xf2, "props" },
     { 0xf3, "undo" },
     { 0xf4, "front" },
     { 0xf5, "copy" },
     { 0xf6, "open" },
     { 0xf7, "paste" },
     { 0xf8, "find" },
     { 0xf9, "cut" },
     { 0xfa, "lf" },
     { 0xfb, "help" },
     { 0xfc, "meta_l" },
     { 0xfd, "meta_r" },
     { 0xfe, "compose" },
 #endif
     { 0, NULL },
 };

 static int get_keycode(const char *key)
 {
     const KeyDef *p;
     char *endp;
     int ret;

     for(p = key_defs; p->name != NULL; p++) {
         if (!strcmp(key, p->name))
             return p->keycode;
     }
     if (strstart(key, "0x", NULL)) {
         ret = strtoul(key, &endp, 0);
         if (*endp == '\0' && ret >= 0x01 && ret <= 0xff)
             return ret;
     }
     return -1;
 }

 #define MAX_KEYCODES 16
 static uint8_t keycodes[MAX_KEYCODES];
 static int nb_pending_keycodes;
 static QEMUTimer *key_timer;

 static void release_keys(void *opaque)
 {
     int keycode;

     while (nb_pending_keycodes > 0) {
         nb_pending_keycodes--;
         keycode = keycodes[nb_pending_keycodes];
         if (keycode & 0x80)
             kbd_put_keycode(0xe0);
         kbd_put_keycode(keycode | 0x80);
     }
 }

 static void do_sendkey(Monitor *mon, const QDict *qdict)
 {
     char keyname_buf[16];
     char *separator;
     int keyname_len, keycode, i;
     const char *string = qdict_get_str(qdict, "string");
     int has_hold_time = qdict_haskey(qdict, "hold_time");
     int hold_time = qdict_get_try_int(qdict, "hold_time", -1);

     if (nb_pending_keycodes > 0) {
         qemu_del_timer(key_timer);
         release_keys(NULL);
     }
     if (!has_hold_time)
         hold_time = 100;
     i = 0;
     while (1) {
         separator = strchr(string, '-');
         keyname_len = separator ? separator - string : strlen(string);
         if (keyname_len > 0) {
             pstrcpy(keyname_buf, sizeof(keyname_buf), string);
             if (keyname_len > sizeof(keyname_buf) - 1) {
                 monitor_printf(mon, "invalid key: '%s...'\n", keyname_buf);
                 return;
             }
             if (i == MAX_KEYCODES) {
                 monitor_printf(mon, "too many keys\n");
                 return;
             }
             keyname_buf[keyname_len] = 0;
             keycode = get_keycode(keyname_buf);
             if (keycode < 0) {
                 monitor_printf(mon, "unknown key: '%s'\n", keyname_buf);
                 return;
             }
             keycodes[i++] = keycode;
         }
         if (!separator)
             break;
         string = separator + 1;
     }
     nb_pending_keycodes = i;
     /* key down events */
     for (i = 0; i < nb_pending_keycodes; i++) {
         keycode = keycodes[i];
         if (keycode & 0x80)
             kbd_put_keycode(0xe0);
         kbd_put_keycode(keycode & 0x7f);
     }
     /* delayed key up events */
     qemu_mod_timer(key_timer, qemu_get_clock_ns(vm_clock) +
                    muldiv64(get_ticks_per_sec(), hold_time, 1000));
 }

 static int mouse_button_state;

 static void do_mouse_move(Monitor *mon, const QDict *qdict)
 {
     int dx, dy, dz;
     const char *dx_str = qdict_get_str(qdict, "dx_str");
     const char *dy_str = qdict_get_str(qdict, "dy_str");
     const char *dz_str = qdict_get_try_str(qdict, "dz_str");
     dx = strtol(dx_str, NULL, 0);
     dy = strtol(dy_str, NULL, 0);
     dz = 0;
     if (dz_str)
         dz = strtol(dz_str, NULL, 0);
     kbd_mouse_event(dx, dy, dz, mouse_button_state);
 }

 static void do_mouse_button(Monitor *mon, const QDict *qdict)
 {
     int button_state = qdict_get_int(qdict, "button_state");
     mouse_button_state = button_state;
     kbd_mouse_event(0, 0, 0, mouse_button_state);
 }

 static void do_ioport_read(Monitor *mon, const QDict *qdict)
 {
     int size = qdict_get_int(qdict, "size");
     int addr = qdict_get_int(qdict, "addr");
     int has_index = qdict_haskey(qdict, "index");
     uint32_t val;
     int suffix;

     if (has_index) {
         int index = qdict_get_int(qdict, "index");
         cpu_outb(addr & IOPORTS_MASK, index & 0xff);
         addr++;
     }
     addr &= 0xffff;

     switch(size) {
     default:
     case 1:
         val = cpu_inb(addr);
         suffix = 'b';
         break;
     case 2:
         val = cpu_inw(addr);
         suffix = 'w';
         break;
     case 4:
         val = cpu_inl(addr);
         suffix = 'l';
         break;
     }
     monitor_printf(mon, "port%c[0x%04x] = %#0*x\n",
                    suffix, addr, size * 2, val);
 }

 static void do_ioport_write(Monitor *mon, const QDict *qdict)
 {
     int size = qdict_get_int(qdict, "size");
     int addr = qdict_get_int(qdict, "addr");
     int val = qdict_get_int(qdict, "val");

     addr &= IOPORTS_MASK;

     switch (size) {
     default:
     case 1:
         cpu_outb(addr, val);
         break;
     case 2:
         cpu_outw(addr, val);
         break;
     case 4:
         cpu_outl(addr, val);
         break;
     }
 }

 static void do_boot_set(Monitor *mon, const QDict *qdict)
 {
     int res;
     const char *bootdevice = qdict_get_str(qdict, "bootdevice");

     res = qemu_boot_set(bootdevice);
     if (res == 0) {
         monitor_printf(mon, "boot device list now set to %s\n", bootdevice);
     } else if (res > 0) {
         monitor_printf(mon, "setting boot device list failed\n");
     } else {
         monitor_printf(mon, "no function defined to set boot device list for "
                        "this architecture\n");
     }
 }

 #if defined(TARGET_I386)
 static void print_pte(Monitor *mon, target_phys_addr_t addr,
                       target_phys_addr_t pte,
                       target_phys_addr_t mask)
 {
 #ifdef TARGET_X86_64
     if (addr & (1ULL << 47)) {
         addr |= -1LL << 48;
     }
 #endif
     monitor_printf(mon, TARGET_FMT_plx ": " TARGET_FMT_plx
                    " %c%c%c%c%c%c%c%c%c\n",
                    addr,
                    pte & mask,
                    pte & PG_NX_MASK ? 'X' : '-',
                    pte & PG_GLOBAL_MASK ? 'G' : '-',
                    pte & PG_PSE_MASK ? 'P' : '-',
                    pte & PG_DIRTY_MASK ? 'D' : '-',
                    pte & PG_ACCESSED_MASK ? 'A' : '-',
                    pte & PG_PCD_MASK ? 'C' : '-',
                    pte & PG_PWT_MASK ? 'T' : '-',
                    pte & PG_USER_MASK ? 'U' : '-',
                    pte & PG_RW_MASK ? 'W' : '-');
 }

 static void tlb_info_32(Monitor *mon, CPUState *env)
 {
     unsigned int l1, l2;
     uint32_t pgd, pde, pte;

     pgd = env->cr[3] & ~0xfff;
     for(l1 = 0; l1 < 1024; l1++) {
         cpu_physical_memory_read(pgd + l1 * 4, &pde, 4);
         pde = le32_to_cpu(pde);
         if (pde & PG_PRESENT_MASK) {
             if ((pde & PG_PSE_MASK) && (env->cr[4] & CR4_PSE_MASK)) {
                 /* 4M pages */
                 print_pte(mon, (l1 << 22), pde, ~((1 << 21) - 1));
             } else {
                 for(l2 = 0; l2 < 1024; l2++) {
                     cpu_physical_memory_read((pde & ~0xfff) + l2 * 4, &pte, 4);
                     pte = le32_to_cpu(pte);
                     if (pte & PG_PRESENT_MASK) {
                         print_pte(mon, (l1 << 22) + (l2 << 12),
                                   pte & ~PG_PSE_MASK,
                                   ~0xfff);
                     }
                 }
             }
         }
     }
 }

 static void tlb_info_pae32(Monitor *mon, CPUState *env)
 {
     unsigned int l1, l2, l3;
     uint64_t pdpe, pde, pte;
     uint64_t pdp_addr, pd_addr, pt_addr;

     pdp_addr = env->cr[3] & ~0x1f;
     for (l1 = 0; l1 < 4; l1++) {
         cpu_physical_memory_read(pdp_addr + l1 * 8, &pdpe, 8);
         pdpe = le64_to_cpu(pdpe);
         if (pdpe & PG_PRESENT_MASK) {
             pd_addr = pdpe & 0x3fffffffff000ULL;
             for (l2 = 0; l2 < 512; l2++) {
                 cpu_physical_memory_read(pd_addr + l2 * 8, &pde, 8);
                 pde = le64_to_cpu(pde);
                 if (pde & PG_PRESENT_MASK) {
                     if (pde & PG_PSE_MASK) {
                         /* 2M pages with PAE, CR4.PSE is ignored */
                         print_pte(mon, (l1 << 30 ) + (l2 << 21), pde,
                                   ~((target_phys_addr_t)(1 << 20) - 1));
                     } else {
                         pt_addr = pde & 0x3fffffffff000ULL;
                         for (l3 = 0; l3 < 512; l3++) {
                             cpu_physical_memory_read(pt_addr + l3 * 8, &pte, 8);
                             pte = le64_to_cpu(pte);
                             if (pte & PG_PRESENT_MASK) {
                                 print_pte(mon, (l1 << 30 ) + (l2 << 21)
                                           + (l3 << 12),
                                           pte & ~PG_PSE_MASK,
                                           ~(target_phys_addr_t)0xfff);
                             }
                         }
                     }
                 }
             }
         }
     }
 }

 #ifdef TARGET_X86_64
 static void tlb_info_64(Monitor *mon, CPUState *env)
 {
     uint64_t l1, l2, l3, l4;
     uint64_t pml4e, pdpe, pde, pte;
     uint64_t pml4_addr, pdp_addr, pd_addr, pt_addr;

     pml4_addr = env->cr[3] & 0x3fffffffff000ULL;
     for (l1 = 0; l1 < 512; l1++) {
         cpu_physical_memory_read(pml4_addr + l1 * 8, &pml4e, 8);
         pml4e = le64_to_cpu(pml4e);
         if (pml4e & PG_PRESENT_MASK) {
             pdp_addr = pml4e & 0x3fffffffff000ULL;
             for (l2 = 0; l2 < 512; l2++) {
                 cpu_physical_memory_read(pdp_addr + l2 * 8, &pdpe, 8);
                 pdpe = le64_to_cpu(pdpe);
                 if (pdpe & PG_PRESENT_MASK) {
                     if (pdpe & PG_PSE_MASK) {
                         /* 1G pages, CR4.PSE is ignored */
                         print_pte(mon, (l1 << 39) + (l2 << 30), pdpe,
                                   0x3ffffc0000000ULL);
                     } else {
                         pd_addr = pdpe & 0x3fffffffff000ULL;
                         for (l3 = 0; l3 < 512; l3++) {
                             cpu_physical_memory_read(pd_addr + l3 * 8, &pde, 8);
                             pde = le64_to_cpu(pde);
                             if (pde & PG_PRESENT_MASK) {
                                 if (pde & PG_PSE_MASK) {
                                     /* 2M pages, CR4.PSE is ignored */
                                     print_pte(mon, (l1 << 39) + (l2 << 30) +
                                               (l3 << 21), pde,
                                               0x3ffffffe00000ULL);
                                 } else {
                                     pt_addr = pde & 0x3fffffffff000ULL;
                                     for (l4 = 0; l4 < 512; l4++) {
                                         cpu_physical_memory_read(pt_addr
                                                                  + l4 * 8,
                                                                  &pte, 8);
                                         pte = le64_to_cpu(pte);
                                         if (pte & PG_PRESENT_MASK) {
                                             print_pte(mon, (l1 << 39) +
                                                       (l2 << 30) +
                                                       (l3 << 21) + (l4 << 12),
                                                       pte & ~PG_PSE_MASK,
                                                       0x3fffffffff000ULL);
                                         }
                                     }
                                 }
                             }
                         }
                     }
                 }
             }
         }
     }
 }
 #endif

 static void tlb_info(Monitor *mon)
 {
     CPUState *env;

     env = mon_get_cpu();

     if (!(env->cr[0] & CR0_PG_MASK)) {
         monitor_printf(mon, "PG disabled\n");
         return;
     }
     if (env->cr[4] & CR4_PAE_MASK) {
 #ifdef TARGET_X86_64
         if (env->hflags & HF_LMA_MASK) {
             tlb_info_64(mon, env);
         } else
 #endif
         {
             tlb_info_pae32(mon, env);
         }
     } else {
         tlb_info_32(mon, env);
     }
 }

 static void mem_print(Monitor *mon, target_phys_addr_t *pstart,
                       int *plast_prot,
                       target_phys_addr_t end, int prot)
 {
     int prot1;
     prot1 = *plast_prot;
     if (prot != prot1) {
         if (*pstart != -1) {
             monitor_printf(mon, TARGET_FMT_plx "-" TARGET_FMT_plx " "
                            TARGET_FMT_plx " %c%c%c\n",
                            *pstart, end, end - *pstart,
                            prot1 & PG_USER_MASK ? 'u' : '-',
                            'r',
                            prot1 & PG_RW_MASK ? 'w' : '-');
         }
         if (prot != 0)
             *pstart = end;
         else
             *pstart = -1;
         *plast_prot = prot;
     }
 }

 static void mem_info_32(Monitor *mon, CPUState *env)
 {
     unsigned int l1, l2;
     int prot, last_prot;
     uint32_t pgd, pde, pte;
     target_phys_addr_t start, end;

     pgd = env->cr[3] & ~0xfff;
     last_prot = 0;
     start = -1;
     for(l1 = 0; l1 < 1024; l1++) {
         cpu_physical_memory_read(pgd + l1 * 4, &pde, 4);
         pde = le32_to_cpu(pde);
         end = l1 << 22;
         if (pde & PG_PRESENT_MASK) {
             if ((pde & PG_PSE_MASK) && (env->cr[4] & CR4_PSE_MASK)) {
                 prot = pde & (PG_USER_MASK | PG_RW_MASK | PG_PRESENT_MASK);
                 mem_print(mon, &start, &last_prot, end, prot);
             } else {
                 for(l2 = 0; l2 < 1024; l2++) {
                     cpu_physical_memory_read((pde & ~0xfff) + l2 * 4, &pte, 4);
                     pte = le32_to_cpu(pte);
                     end = (l1 << 22) + (l2 << 12);
                     if (pte & PG_PRESENT_MASK) {
                         prot = pte & pde &
                             (PG_USER_MASK | PG_RW_MASK | PG_PRESENT_MASK);
                     } else {
                         prot = 0;
                     }
                     mem_print(mon, &start, &last_prot, end, prot);
                 }
             }
         } else {
             prot = 0;
             mem_print(mon, &start, &last_prot, end, prot);
         }
     }
     /* Flush last range */
     mem_print(mon, &start, &last_prot, (target_phys_addr_t)1 << 32, 0);
 }

 static void mem_info_pae32(Monitor *mon, CPUState *env)
 {
     unsigned int l1, l2, l3;
     int prot, last_prot;
     uint64_t pdpe, pde, pte;
     uint64_t pdp_addr, pd_addr, pt_addr;
     target_phys_addr_t start, end;

     pdp_addr = env->cr[3] & ~0x1f;
     last_prot = 0;
     start = -1;
     for (l1 = 0; l1 < 4; l1++) {
         cpu_physical_memory_read(pdp_addr + l1 * 8, &pdpe, 8);
         pdpe = le64_to_cpu(pdpe);
         end = l1 << 30;
         if (pdpe & PG_PRESENT_MASK) {
             pd_addr = pdpe & 0x3fffffffff000ULL;
             for (l2 = 0; l2 < 512; l2++) {
                 cpu_physical_memory_read(pd_addr + l2 * 8, &pde, 8);
                 pde = le64_to_cpu(pde);
                 end = (l1 << 30) + (l2 << 21);
                 if (pde & PG_PRESENT_MASK) {
                     if (pde & PG_PSE_MASK) {
                         prot = pde & (PG_USER_MASK | PG_RW_MASK |
                                       PG_PRESENT_MASK);
                         mem_print(mon, &start, &last_prot, end, prot);
                     } else {
                         pt_addr = pde & 0x3fffffffff000ULL;
                         for (l3 = 0; l3 < 512; l3++) {
                             cpu_physical_memory_read(pt_addr + l3 * 8, &pte, 8);
                             pte = le64_to_cpu(pte);
                             end = (l1 << 30) + (l2 << 21) + (l3 << 12);
                             if (pte & PG_PRESENT_MASK) {
                                 prot = pte & pde & (PG_USER_MASK | PG_RW_MASK |
                                                     PG_PRESENT_MASK);
                             } else {
                                 prot = 0;
                             }
                             mem_print(mon, &start, &last_prot, end, prot);
                         }
                     }
                 } else {
                     prot = 0;
                     mem_print(mon, &start, &last_prot, end, prot);
                 }
             }
         } else {
             prot = 0;
             mem_print(mon, &start, &last_prot, end, prot);
         }
     }
     /* Flush last range */
     mem_print(mon, &start, &last_prot, (target_phys_addr_t)1 << 32, 0);
 }


 #ifdef TARGET_X86_64
 static void mem_info_64(Monitor *mon, CPUState *env)
 {
     int prot, last_prot;
     uint64_t l1, l2, l3, l4;
     uint64_t pml4e, pdpe, pde, pte;
     uint64_t pml4_addr, pdp_addr, pd_addr, pt_addr, start, end;

     pml4_addr = env->cr[3] & 0x3fffffffff000ULL;
     last_prot = 0;
     start = -1;
     for (l1 = 0; l1 < 512; l1++) {
         cpu_physical_memory_read(pml4_addr + l1 * 8, &pml4e, 8);
         pml4e = le64_to_cpu(pml4e);
         end = l1 << 39;
         if (pml4e & PG_PRESENT_MASK) {
             pdp_addr = pml4e & 0x3fffffffff000ULL;
             for (l2 = 0; l2 < 512; l2++) {
                 cpu_physical_memory_read(pdp_addr + l2 * 8, &pdpe, 8);
                 pdpe = le64_to_cpu(pdpe);
                 end = (l1 << 39) + (l2 << 30);
                 if (pdpe & PG_PRESENT_MASK) {
                     if (pdpe & PG_PSE_MASK) {
                         prot = pdpe & (PG_USER_MASK | PG_RW_MASK |
                                        PG_PRESENT_MASK);
                         prot &= pml4e;
                         mem_print(mon, &start, &last_prot, end, prot);
                     } else {
                         pd_addr = pdpe & 0x3fffffffff000ULL;
                         for (l3 = 0; l3 < 512; l3++) {
                             cpu_physical_memory_read(pd_addr + l3 * 8, &pde, 8);
                             pde = le64_to_cpu(pde);
                             end = (l1 << 39) + (l2 << 30) + (l3 << 21);
                             if (pde & PG_PRESENT_MASK) {
                                 if (pde & PG_PSE_MASK) {
                                     prot = pde & (PG_USER_MASK | PG_RW_MASK |
                                                   PG_PRESENT_MASK);
                                     prot &= pml4e & pdpe;
                                     mem_print(mon, &start, &last_prot, end, prot);
                                 } else {
                                     pt_addr = pde & 0x3fffffffff000ULL;
                                     for (l4 = 0; l4 < 512; l4++) {
                                         cpu_physical_memory_read(pt_addr
                                                                  + l4 * 8,
                                                                  &pte, 8);
                                         pte = le64_to_cpu(pte);
                                         end = (l1 << 39) + (l2 << 30) +
                                             (l3 << 21) + (l4 << 12);
                                         if (pte & PG_PRESENT_MASK) {
                                             prot = pte & (PG_USER_MASK | PG_RW_MASK |
                                                           PG_PRESENT_MASK);
                                             prot &= pml4e & pdpe & pde;
                                         } else {
                                             prot = 0;
                                         }
                                         mem_print(mon, &start, &last_prot, end, prot);
                                     }
                                 }
                             } else {
                                 prot = 0;
                                 mem_print(mon, &start, &last_prot, end, prot);
                             }
                         }
                     }
                 } else {
                     prot = 0;
                     mem_print(mon, &start, &last_prot, end, prot);
                 }
             }
         } else {
             prot = 0;
             mem_print(mon, &start, &last_prot, end, prot);
         }
     }
     /* Flush last range */
     mem_print(mon, &start, &last_prot, (target_phys_addr_t)1 << 48, 0);
 }
 #endif

 static void mem_info(Monitor *mon)
 {
     CPUState *env;

     env = mon_get_cpu();

     if (!(env->cr[0] & CR0_PG_MASK)) {
         monitor_printf(mon, "PG disabled\n");
         return;
     }
     if (env->cr[4] & CR4_PAE_MASK) {
 #ifdef TARGET_X86_64
         if (env->hflags & HF_LMA_MASK) {
             mem_info_64(mon, env);
         } else
 #endif
         {
             mem_info_pae32(mon, env);
         }
     } else {
         mem_info_32(mon, env);
     }
 }
 #endif

 #if defined(TARGET_SH4)

 static void print_tlb(Monitor *mon, int idx, tlb_t *tlb)
 {
     monitor_printf(mon, " tlb%i:\t"
                    "asid=%hhu vpn=%x\tppn=%x\tsz=%hhu size=%u\t"
                    "v=%hhu shared=%hhu cached=%hhu prot=%hhu "
                    "dirty=%hhu writethrough=%hhu\n",
                    idx,
                    tlb->asid, tlb->vpn, tlb->ppn, tlb->sz, tlb->size,
                    tlb->v, tlb->sh, tlb->c, tlb->pr,
                    tlb->d, tlb->wt);
 }

 static void tlb_info(Monitor *mon)
 {
     CPUState *env = mon_get_cpu();
     int i;

     monitor_printf (mon, "ITLB:\n");
     for (i = 0 ; i < ITLB_SIZE ; i++)
         print_tlb (mon, i, &env->itlb[i]);
     monitor_printf (mon, "UTLB:\n");
     for (i = 0 ; i < UTLB_SIZE ; i++)
         print_tlb (mon, i, &env->utlb[i]);
 }

 #endif

 #if defined(TARGET_SPARC) || defined(TARGET_PPC)
 static void tlb_info(Monitor *mon)
 {
     CPUState *env1 = mon_get_cpu();

     dump_mmu((FILE*)mon, (fprintf_function)monitor_printf, env1);
 }
 #endif

 static void do_info_mtree(Monitor *mon)
 {
     mtree_info((fprintf_function)monitor_printf, mon);
 }

 static void do_info_numa(Monitor *mon)
 {
     int i;
     CPUState *env;

     monitor_printf(mon, "%d nodes\n", nb_numa_nodes);
     for (i = 0; i < nb_numa_nodes; i++) {
         monitor_printf(mon, "node %d cpus:", i);
         for (env = first_cpu; env != NULL; env = env->next_cpu) {
             if (env->numa_node == i) {
                 monitor_printf(mon, " %d", env->cpu_index);
             }
         }
         monitor_printf(mon, "\n");
         monitor_printf(mon, "node %d size: %" PRId64 " MB\n", i,
             node_mem[i] >> 20);
     }
 }

 #ifdef CONFIG_PROFILER

 int64_t qemu_time;
 int64_t dev_time;

 static void do_info_profile(Monitor *mon)
 {
     int64_t total;
     total = qemu_time;
     if (total == 0)
         total = 1;
     monitor_printf(mon, "async time  %" PRId64 " (%0.3f)\n",
                    dev_time, dev_time / (double)get_ticks_per_sec());
     monitor_printf(mon, "qemu time   %" PRId64 " (%0.3f)\n",
                    qemu_time, qemu_time / (double)get_ticks_per_sec());
     qemu_time = 0;
     dev_time = 0;
 }
 #else
 static void do_info_profile(Monitor *mon)
 {
     monitor_printf(mon, "Internal profiler not compiled\n");
 }
 #endif

 /* Capture support */
 static QLIST_HEAD (capture_list_head, CaptureState) capture_head;

 static void do_info_capture(Monitor *mon)
 {
     int i;
     CaptureState *s;

     for (s = capture_head.lh_first, i = 0; s; s = s->entries.le_next, ++i) {
         monitor_printf(mon, "[%d]: ", i);
         s->ops.info (s->opaque);
     }
 }

 #ifdef HAS_AUDIO
 static void do_stop_capture(Monitor *mon, const QDict *qdict)
 {
     int i;
     int n = qdict_get_int(qdict, "n");
     CaptureState *s;

     for (s = capture_head.lh_first, i = 0; s; s = s->entries.le_next, ++i) {
         if (i == n) {
             s->ops.destroy (s->opaque);
             QLIST_REMOVE (s, entries);
             g_free (s);
             return;
         }
     }
 }

 static void do_wav_capture(Monitor *mon, const QDict *qdict)
 {
     const char *path = qdict_get_str(qdict, "path");
     int has_freq = qdict_haskey(qdict, "freq");
     int freq = qdict_get_try_int(qdict, "freq", -1);
     int has_bits = qdict_haskey(qdict, "bits");
     int bits = qdict_get_try_int(qdict, "bits", -1);
     int has_channels = qdict_haskey(qdict, "nchannels");
     int nchannels = qdict_get_try_int(qdict, "nchannels", -1);
     CaptureState *s;

     s = g_malloc0 (sizeof (*s));

     freq = has_freq ? freq : 44100;
     bits = has_bits ? bits : 16;
     nchannels = has_channels ? nchannels : 2;

     if (wav_start_capture (s, path, freq, bits, nchannels)) {
         monitor_printf(mon, "Failed to add wave capture\n");
         g_free (s);
         return;
     }
     QLIST_INSERT_HEAD (&capture_head, s, entries);
 }
 #endif

 static qemu_acl *find_acl(Monitor *mon, const char *name)
 {
     qemu_acl *acl = qemu_acl_find(name);

     if (!acl) {
         monitor_printf(mon, "acl: unknown list '%s'\n", name);
     }
     return acl;
 }

 static void do_acl_show(Monitor *mon, const QDict *qdict)
 {
     const char *aclname = qdict_get_str(qdict, "aclname");
     qemu_acl *acl = find_acl(mon, aclname);
     qemu_acl_entry *entry;
     int i = 0;

     if (acl) {
         monitor_printf(mon, "policy: %s\n",
                        acl->defaultDeny ? "deny" : "allow");
         QTAILQ_FOREACH(entry, &acl->entries, next) {
             i++;
             monitor_printf(mon, "%d: %s %s\n", i,
                            entry->deny ? "deny" : "allow", entry->match);
         }
     }
 }

 static void do_acl_reset(Monitor *mon, const QDict *qdict)
 {
     const char *aclname = qdict_get_str(qdict, "aclname");
     qemu_acl *acl = find_acl(mon, aclname);

     if (acl) {
         qemu_acl_reset(acl);
         monitor_printf(mon, "acl: removed all rules\n");
     }
 }

 static void do_acl_policy(Monitor *mon, const QDict *qdict)
 {
     const char *aclname = qdict_get_str(qdict, "aclname");
     const char *policy = qdict_get_str(qdict, "policy");
     qemu_acl *acl = find_acl(mon, aclname);

     if (acl) {
         if (strcmp(policy, "allow") == 0) {
             acl->defaultDeny = 0;
             monitor_printf(mon, "acl: policy set to 'allow'\n");
         } else if (strcmp(policy, "deny") == 0) {
             acl->defaultDeny = 1;
             monitor_printf(mon, "acl: policy set to 'deny'\n");
         } else {
             monitor_printf(mon, "acl: unknown policy '%s', "
                            "expected 'deny' or 'allow'\n", policy);
         }
     }
 }

 static void do_acl_add(Monitor *mon, const QDict *qdict)
 {
     const char *aclname = qdict_get_str(qdict, "aclname");
     const char *match = qdict_get_str(qdict, "match");
     const char *policy = qdict_get_str(qdict, "policy");
     int has_index = qdict_haskey(qdict, "index");
     int index = qdict_get_try_int(qdict, "index", -1);
     qemu_acl *acl = find_acl(mon, aclname);
     int deny, ret;

     if (acl) {
         if (strcmp(policy, "allow") == 0) {
             deny = 0;
         } else if (strcmp(policy, "deny") == 0) {
             deny = 1;
         } else {
             monitor_printf(mon, "acl: unknown policy '%s', "
                            "expected 'deny' or 'allow'\n", policy);
             return;
         }
         if (has_index)
             ret = qemu_acl_insert(acl, deny, match, index);
         else
             ret = qemu_acl_append(acl, deny, match);
         if (ret < 0)
             monitor_printf(mon, "acl: unable to add acl entry\n");
         else
             monitor_printf(mon, "acl: added rule at position %d\n", ret);
     }
 }

 static void do_acl_remove(Monitor *mon, const QDict *qdict)
 {
     const char *aclname = qdict_get_str(qdict, "aclname");
     const char *match = qdict_get_str(qdict, "match");
     qemu_acl *acl = find_acl(mon, aclname);
     int ret;

     if (acl) {
         ret = qemu_acl_remove(acl, match);
         if (ret < 0)
             monitor_printf(mon, "acl: no matching acl entry\n");
         else
             monitor_printf(mon, "acl: removed rule at position %d\n", ret);
     }
 }

 #if defined(TARGET_I386)
 static void do_inject_mce(Monitor *mon, const QDict *qdict)
 {
     CPUState *cenv;
     int cpu_index = qdict_get_int(qdict, "cpu_index");
     int bank = qdict_get_int(qdict, "bank");
     uint64_t status = qdict_get_int(qdict, "status");
     uint64_t mcg_status = qdict_get_int(qdict, "mcg_status");
     uint64_t addr = qdict_get_int(qdict, "addr");
     uint64_t misc = qdict_get_int(qdict, "misc");
     int flags = MCE_INJECT_UNCOND_AO;

     if (qdict_get_try_bool(qdict, "broadcast", 0)) {
         flags |= MCE_INJECT_BROADCAST;
     }
     for (cenv = first_cpu; cenv != NULL; cenv = cenv->next_cpu) {
         if (cenv->cpu_index == cpu_index) {
             cpu_x86_inject_mce(mon, cenv, bank, status, mcg_status, addr, misc,
                                flags);
             break;
         }
     }
 }
 #endif

 static int do_getfd(Monitor *mon, const QDict *qdict, QObject **ret_data)
 {
     const char *fdname = qdict_get_str(qdict, "fdname");
     mon_fd_t *monfd;
     int fd;

     fd = qemu_chr_fe_get_msgfd(mon->chr);
     if (fd == -1) {
         qerror_report(QERR_FD_NOT_SUPPLIED);
         return -1;
     }

     if (qemu_isdigit(fdname[0])) {
         qerror_report(QERR_INVALID_PARAMETER_VALUE, "fdname",
                       "a name not starting with a digit");
         return -1;
     }

     QLIST_FOREACH(monfd, &mon->fds, next) {
         if (strcmp(monfd->name, fdname) != 0) {
             continue;
         }

         close(monfd->fd);
         monfd->fd = fd;
         return 0;
     }

     monfd = g_malloc0(sizeof(mon_fd_t));
     monfd->name = g_strdup(fdname);
     monfd->fd = fd;

     QLIST_INSERT_HEAD(&mon->fds, monfd, next);
     return 0;
 }

 static int do_closefd(Monitor *mon, const QDict *qdict, QObject **ret_data)
 {
     const char *fdname = qdict_get_str(qdict, "fdname");
     mon_fd_t *monfd;

     QLIST_FOREACH(monfd, &mon->fds, next) {
         if (strcmp(monfd->name, fdname) != 0) {
             continue;
         }

         QLIST_REMOVE(monfd, next);
         close(monfd->fd);
         g_free(monfd->name);
         g_free(monfd);
         return 0;
     }

     qerror_report(QERR_FD_NOT_FOUND, fdname);
     return -1;
 }

 static void do_loadvm(Monitor *mon, const QDict *qdict)
 {
     int saved_vm_running  = runstate_is_running();
     const char *name = qdict_get_str(qdict, "name");

     vm_stop(RUN_STATE_RESTORE_VM);

     if (load_vmstate(name) == 0 && saved_vm_running) {
         vm_start();
     }
 }

 int monitor_get_fd(Monitor *mon, const char *fdname)
 {
     mon_fd_t *monfd;

     QLIST_FOREACH(monfd, &mon->fds, next) {
         int fd;

         if (strcmp(monfd->name, fdname) != 0) {
             continue;
         }

         fd = monfd->fd;

         /* caller takes ownership of fd */
         QLIST_REMOVE(monfd, next);
         g_free(monfd->name);
         g_free(monfd);

         return fd;
     }

     return -1;
 }

 /* mon_cmds and info_cmds would be sorted at runtime */
 static mon_cmd_t mon_cmds[] = {
 #include "hmp-commands.h"
     { NULL, NULL, },
 };

 /* Please update hmp-commands.hx when adding or changing commands */
 static mon_cmd_t info_cmds[] = {
     {
         .name       = "version",
         .args_type  = "",
         .params     = "",
         .help       = "show the version of QEMU",
         .mhandler.info = hmp_info_version,
     },
     {
         .name       = "network",
         .args_type  = "",
         .params     = "",
         .help       = "show the network state",
         .mhandler.info = do_info_network,
     },
     {
         .name       = "chardev",
         .args_type  = "",
         .params     = "",
         .help       = "show the character devices",
         .mhandler.info = hmp_info_chardev,
     },
     {
         .name       = "block",
         .args_type  = "",
         .params     = "",
         .help       = "show the block devices",
         .mhandler.info = hmp_info_block,
     },
     {
         .name       = "blockstats",
         .args_type  = "",
         .params     = "",
         .help       = "show block device statistics",
         .mhandler.info = hmp_info_blockstats,
     },
     {
         .name       = "block-jobs",
         .args_type  = "",
         .params     = "",
         .help       = "show progress of ongoing block device operations",
         .mhandler.info = hmp_info_block_jobs,
     },
     {
         .name       = "registers",
         .args_type  = "",
         .params     = "",
         .help       = "show the cpu registers",
         .mhandler.info = do_info_registers,
     },
     {
         .name       = "cpus",
         .args_type  = "",
         .params     = "",
         .help       = "show infos for each CPU",
         .mhandler.info = hmp_info_cpus,
     },
     {
         .name       = "history",
         .args_type  = "",
         .params     = "",
         .help       = "show the command line history",
         .mhandler.info = do_info_history,
     },
 #if defined(TARGET_I386) || defined(TARGET_PPC) || defined(TARGET_MIPS) || \
     defined(TARGET_LM32) || (defined(TARGET_SPARC) && !defined(TARGET_SPARC64))
     {
         .name       = "irq",
         .args_type  = "",
         .params     = "",
         .help       = "show the interrupts statistics (if available)",
 #ifdef TARGET_SPARC
         .mhandler.info = sun4m_irq_info,
 #elif defined(TARGET_LM32)
         .mhandler.info = lm32_irq_info,
 #else
         .mhandler.info = irq_info,
 #endif
     },
     {
         .name       = "pic",
         .args_type  = "",
         .params     = "",
         .help       = "show i8259 (PIC) state",
 #ifdef TARGET_SPARC
         .mhandler.info = sun4m_pic_info,
 #elif defined(TARGET_LM32)
         .mhandler.info = lm32_do_pic_info,
 #else
         .mhandler.info = pic_info,
 #endif
     },
 #endif
     {
         .name       = "pci",
         .args_type  = "",
         .params     = "",
         .help       = "show PCI info",
         .mhandler.info = hmp_info_pci,
     },
 #if defined(TARGET_I386) || defined(TARGET_SH4) || defined(TARGET_SPARC) || \
     defined(TARGET_PPC)
     {
         .name       = "tlb",
         .args_type  = "",
         .params     = "",
         .help       = "show virtual to physical memory mappings",
         .mhandler.info = tlb_info,
     },
 #endif
 #if defined(TARGET_I386)
     {
         .name       = "mem",
         .args_type  = "",
         .params     = "",
         .help       = "show the active virtual memory mappings",
         .mhandler.info = mem_info,
     },
 #endif
     {
         .name       = "mtree",
         .args_type  = "",
         .params     = "",
         .help       = "show memory tree",
         .mhandler.info = do_info_mtree,
     },
     {
         .name       = "jit",
         .args_type  = "",
         .params     = "",
         .help       = "show dynamic compiler info",
         .mhandler.info = do_info_jit,
     },
     {
         .name       = "kvm",
         .args_type  = "",
         .params     = "",
         .help       = "show KVM information",
         .mhandler.info = hmp_info_kvm,
     },
     {
         .name       = "numa",
         .args_type  = "",
         .params     = "",
         .help       = "show NUMA information",
         .mhandler.info = do_info_numa,
     },
     {
         .name       = "usb",
         .args_type  = "",
         .params     = "",
         .help       = "show guest USB devices",
         .mhandler.info = usb_info,
     },
     {
         .name       = "usbhost",
         .args_type  = "",
         .params     = "",
         .help       = "show host USB devices",
         .mhandler.info = usb_host_info,
     },
     {
         .name       = "profile",
         .args_type  = "",
         .params     = "",
         .help       = "show profiling information",
         .mhandler.info = do_info_profile,
     },
     {
         .name       = "capture",
         .args_type  = "",
         .params     = "",
         .help       = "show capture information",
         .mhandler.info = do_info_capture,
     },
     {
         .name       = "snapshots",
         .args_type  = "",
         .params     = "",
         .help       = "show the currently saved VM snapshots",
         .mhandler.info = do_info_snapshots,
     },
     {
         .name       = "status",
         .args_type  = "",
         .params     = "",
         .help       = "show the current VM status (running|paused)",
         .mhandler.info = hmp_info_status,
     },
     {
         .name       = "pcmcia",
         .args_type  = "",
         .params     = "",
         .help       = "show guest PCMCIA status",
         .mhandler.info = pcmcia_info,
     },
     {
         .name       = "mice",
         .args_type  = "",
         .params     = "",
         .help       = "show which guest mouse is receiving events",
         .mhandler.info = hmp_info_mice,
     },
     {
         .name       = "vnc",
         .args_type  = "",
         .params     = "",
         .help       = "show the vnc server status",
         .mhandler.info = hmp_info_vnc,
     },
 #if defined(CONFIG_SPICE)
     {
         .name       = "spice",
         .args_type  = "",
         .params     = "",
         .help       = "show the spice server status",
         .mhandler.info = hmp_info_spice,
     },
 #endif
     {
         .name       = "name",
         .args_type  = "",
         .params     = "",
         .help       = "show the current VM name",
         .mhandler.info = hmp_info_name,
     },
     {
         .name       = "uuid",
         .args_type  = "",
         .params     = "",
         .help       = "show the current VM UUID",
         .mhandler.info = hmp_info_uuid,
     },
 #if defined(TARGET_PPC)
     {
         .name       = "cpustats",
         .args_type  = "",
         .params     = "",
         .help       = "show CPU statistics",
         .mhandler.info = do_info_cpu_stats,
     },
 #endif
 #if defined(CONFIG_SLIRP)
     {
         .name       = "usernet",
         .args_type  = "",
         .params     = "",
         .help       = "show user network stack connection states",
         .mhandler.info = do_info_usernet,
     },
 #endif
     {
         .name       = "migrate",
         .args_type  = "",
         .params     = "",
         .help       = "show migration status",
         .mhandler.info = hmp_info_migrate,
     },
     {
         .name       = "balloon",
         .args_type  = "",
         .params     = "",
         .help       = "show balloon information",
         .mhandler.info = hmp_info_balloon,
     },
     {
         .name       = "qtree",
         .args_type  = "",
         .params     = "",
         .help       = "show device tree",
         .mhandler.info = do_info_qtree,
     },
     {
         .name       = "qdm",
         .args_type  = "",
         .params     = "",
         .help       = "show qdev device model list",
         .mhandler.info = do_info_qdm,
     },
     {
         .name       = "roms",
         .args_type  = "",
         .params     = "",
         .help       = "show roms",
         .mhandler.info = do_info_roms,
     },
 #if defined(CONFIG_TRACE_SIMPLE)
     {
         .name       = "trace",
         .args_type  = "",
         .params     = "",
         .help       = "show current contents of trace buffer",
         .mhandler.info = do_info_trace,
     },
 #endif
     {
         .name       = "trace-events",
         .args_type  = "",
         .params     = "",
         .help       = "show available trace-events & their state",
         .mhandler.info = do_trace_print_events,
     },
     {
         .name       = NULL,
     },
 };

 static const mon_cmd_t qmp_cmds[] = {
 #include "qmp-commands-old.h"
     { /* NULL */ },
 };

 /*******************************************************************/

 static const char *pch;
 static jmp_buf expr_env;

 #define MD_TLONG 0
 #define MD_I32   1

 typedef struct MonitorDef {
     const char *name;
     int offset;
     target_long (*get_value)(const struct MonitorDef *md, int val);
     int type;
 } MonitorDef;

 #if defined(TARGET_I386)
 static target_long monitor_get_pc (const struct MonitorDef *md, int val)
 {
     CPUState *env = mon_get_cpu();
     return env->eip + env->segs[R_CS].base;
 }
 #endif

 #if defined(TARGET_PPC)
 static target_long monitor_get_ccr (const struct MonitorDef *md, int val)
 {
     CPUState *env = mon_get_cpu();
     unsigned int u;
     int i;

     u = 0;
     for (i = 0; i < 8; i++)
         u |= env->crf[i] << (32 - (4 * i));

     return u;
 }

 static target_long monitor_get_msr (const struct MonitorDef *md, int val)
 {
     CPUState *env = mon_get_cpu();
     return env->msr;
 }

 static target_long monitor_get_xer (const struct MonitorDef *md, int val)
 {
     CPUState *env = mon_get_cpu();
     return env->xer;
 }

 static target_long monitor_get_decr (const struct MonitorDef *md, int val)
 {
     CPUState *env = mon_get_cpu();
     return cpu_ppc_load_decr(env);
 }

 static target_long monitor_get_tbu (const struct MonitorDef *md, int val)
 {
     CPUState *env = mon_get_cpu();
     return cpu_ppc_load_tbu(env);
 }

 static target_long monitor_get_tbl (const struct MonitorDef *md, int val)
 {
     CPUState *env = mon_get_cpu();
     return cpu_ppc_load_tbl(env);
 }
 #endif

 #if defined(TARGET_SPARC)
 #ifndef TARGET_SPARC64
 static target_long monitor_get_psr (const struct MonitorDef *md, int val)
 {
     CPUState *env = mon_get_cpu();

     return cpu_get_psr(env);
 }
 #endif

 static target_long monitor_get_reg(const struct MonitorDef *md, int val)
 {
     CPUState *env = mon_get_cpu();
     return env->regwptr[val];
 }
 #endif

 static const MonitorDef monitor_defs[] = {
 #ifdef TARGET_I386

 #define SEG(name, seg) \
     { name, offsetof(CPUState, segs[seg].selector), NULL, MD_I32 },\
     { name ".base", offsetof(CPUState, segs[seg].base) },\
     { name ".limit", offsetof(CPUState, segs[seg].limit), NULL, MD_I32 },

     { "eax", offsetof(CPUState, regs[0]) },
     { "ecx", offsetof(CPUState, regs[1]) },
     { "edx", offsetof(CPUState, regs[2]) },
     { "ebx", offsetof(CPUState, regs[3]) },
     { "esp|sp", offsetof(CPUState, regs[4]) },
     { "ebp|fp", offsetof(CPUState, regs[5]) },
     { "esi", offsetof(CPUState, regs[6]) },
     { "edi", offsetof(CPUState, regs[7]) },
 #ifdef TARGET_X86_64
     { "r8", offsetof(CPUState, regs[8]) },
     { "r9", offsetof(CPUState, regs[9]) },
     { "r10", offsetof(CPUState, regs[10]) },
     { "r11", offsetof(CPUState, regs[11]) },
     { "r12", offsetof(CPUState, regs[12]) },
     { "r13", offsetof(CPUState, regs[13]) },
     { "r14", offsetof(CPUState, regs[14]) },
     { "r15", offsetof(CPUState, regs[15]) },
 #endif
     { "eflags", offsetof(CPUState, eflags) },
     { "eip", offsetof(CPUState, eip) },
     SEG("cs", R_CS)
     SEG("ds", R_DS)
     SEG("es", R_ES)
     SEG("ss", R_SS)
     SEG("fs", R_FS)
     SEG("gs", R_GS)
     { "pc", 0, monitor_get_pc, },
 #elif defined(TARGET_PPC)
     /* General purpose registers */
     { "r0", offsetof(CPUState, gpr[0]) },
     { "r1", offsetof(CPUState, gpr[1]) },
     { "r2", offsetof(CPUState, gpr[2]) },
     { "r3", offsetof(CPUState, gpr[3]) },
     { "r4", offsetof(CPUState, gpr[4]) },
     { "r5", offsetof(CPUState, gpr[5]) },
     { "r6", offsetof(CPUState, gpr[6]) },
     { "r7", offsetof(CPUState, gpr[7]) },
     { "r8", offsetof(CPUState, gpr[8]) },
     { "r9", offsetof(CPUState, gpr[9]) },
     { "r10", offsetof(CPUState, gpr[10]) },
     { "r11", offsetof(CPUState, gpr[11]) },
     { "r12", offsetof(CPUState, gpr[12]) },
     { "r13", offsetof(CPUState, gpr[13]) },
     { "r14", offsetof(CPUState, gpr[14]) },
     { "r15", offsetof(CPUState, gpr[15]) },
     { "r16", offsetof(CPUState, gpr[16]) },
     { "r17", offsetof(CPUState, gpr[17]) },
     { "r18", offsetof(CPUState, gpr[18]) },
     { "r19", offsetof(CPUState, gpr[19]) },
     { "r20", offsetof(CPUState, gpr[20]) },
     { "r21", offsetof(CPUState, gpr[21]) },
     { "r22", offsetof(CPUState, gpr[22]) },
     { "r23", offsetof(CPUState, gpr[23]) },
     { "r24", offsetof(CPUState, gpr[24]) },
     { "r25", offsetof(CPUState, gpr[25]) },
     { "r26", offsetof(CPUState, gpr[26]) },
     { "r27", offsetof(CPUState, gpr[27]) },
     { "r28", offsetof(CPUState, gpr[28]) },
     { "r29", offsetof(CPUState, gpr[29]) },
     { "r30", offsetof(CPUState, gpr[30]) },
     { "r31", offsetof(CPUState, gpr[31]) },
     /* Floating point registers */
     { "f0", offsetof(CPUState, fpr[0]) },
     { "f1", offsetof(CPUState, fpr[1]) },
     { "f2", offsetof(CPUState, fpr[2]) },
     { "f3", offsetof(CPUState, fpr[3]) },
     { "f4", offsetof(CPUState, fpr[4]) },
     { "f5", offsetof(CPUState, fpr[5]) },
     { "f6", offsetof(CPUState, fpr[6]) },
     { "f7", offsetof(CPUState, fpr[7]) },
     { "f8", offsetof(CPUState, fpr[8]) },
     { "f9", offsetof(CPUState, fpr[9]) },
     { "f10", offsetof(CPUState, fpr[10]) },
     { "f11", offsetof(CPUState, fpr[11]) },
     { "f12", offsetof(CPUState, fpr[12]) },
     { "f13", offsetof(CPUState, fpr[13]) },
     { "f14", offsetof(CPUState, fpr[14]) },
     { "f15", offsetof(CPUState, fpr[15]) },
     { "f16", offsetof(CPUState, fpr[16]) },
     { "f17", offsetof(CPUState, fpr[17]) },
     { "f18", offsetof(CPUState, fpr[18]) },
     { "f19", offsetof(CPUState, fpr[19]) },
     { "f20", offsetof(CPUState, fpr[20]) },
     { "f21", offsetof(CPUState, fpr[21]) },
     { "f22", offsetof(CPUState, fpr[22]) },
     { "f23", offsetof(CPUState, fpr[23]) },
     { "f24", offsetof(CPUState, fpr[24]) },
     { "f25", offsetof(CPUState, fpr[25]) },
     { "f26", offsetof(CPUState, fpr[26]) },
     { "f27", offsetof(CPUState, fpr[27]) },
     { "f28", offsetof(CPUState, fpr[28]) },
     { "f29", offsetof(CPUState, fpr[29]) },
     { "f30", offsetof(CPUState, fpr[30]) },
     { "f31", offsetof(CPUState, fpr[31]) },
     { "fpscr", offsetof(CPUState, fpscr) },
     /* Next instruction pointer */
     { "nip|pc", offsetof(CPUState, nip) },
     { "lr", offsetof(CPUState, lr) },
     { "ctr", offsetof(CPUState, ctr) },
     { "decr", 0, &monitor_get_decr, },
     { "ccr", 0, &monitor_get_ccr, },
     /* Machine state register */
     { "msr", 0, &monitor_get_msr, },
     { "xer", 0, &monitor_get_xer, },
     { "tbu", 0, &monitor_get_tbu, },
     { "tbl", 0, &monitor_get_tbl, },
 #if defined(TARGET_PPC64)
     /* Address space register */
     { "asr", offsetof(CPUState, asr) },
 #endif
     /* Segment registers */
     { "sdr1", offsetof(CPUState, spr[SPR_SDR1]) },
     { "sr0", offsetof(CPUState, sr[0]) },
     { "sr1", offsetof(CPUState, sr[1]) },
     { "sr2", offsetof(CPUState, sr[2]) },
     { "sr3", offsetof(CPUState, sr[3]) },
     { "sr4", offsetof(CPUState, sr[4]) },
     { "sr5", offsetof(CPUState, sr[5]) },
     { "sr6", offsetof(CPUState, sr[6]) },
     { "sr7", offsetof(CPUState, sr[7]) },
     { "sr8", offsetof(CPUState, sr[8]) },
     { "sr9", offsetof(CPUState, sr[9]) },
     { "sr10", offsetof(CPUState, sr[10]) },
     { "sr11", offsetof(CPUState, sr[11]) },
     { "sr12", offsetof(CPUState, sr[12]) },
     { "sr13", offsetof(CPUState, sr[13]) },
     { "sr14", offsetof(CPUState, sr[14]) },
     { "sr15", offsetof(CPUState, sr[15]) },
     /* Too lazy to put BATs... */
     { "pvr", offsetof(CPUState, spr[SPR_PVR]) },

     { "srr0", offsetof(CPUState, spr[SPR_SRR0]) },
     { "srr1", offsetof(CPUState, spr[SPR_SRR1]) },
     { "sprg0", offsetof(CPUState, spr[SPR_SPRG0]) },
     { "sprg1", offsetof(CPUState, spr[SPR_SPRG1]) },
     { "sprg2", offsetof(CPUState, spr[SPR_SPRG2]) },
     { "sprg3", offsetof(CPUState, spr[SPR_SPRG3]) },
     { "sprg4", offsetof(CPUState, spr[SPR_SPRG4]) },
     { "sprg5", offsetof(CPUState, spr[SPR_SPRG5]) },
     { "sprg6", offsetof(CPUState, spr[SPR_SPRG6]) },
     { "sprg7", offsetof(CPUState, spr[SPR_SPRG7]) },
     { "pid", offsetof(CPUState, spr[SPR_BOOKE_PID]) },
     { "csrr0", offsetof(CPUState, spr[SPR_BOOKE_CSRR0]) },
     { "csrr1", offsetof(CPUState, spr[SPR_BOOKE_CSRR1]) },
     { "esr", offsetof(CPUState, spr[SPR_BOOKE_ESR]) },
     { "dear", offsetof(CPUState, spr[SPR_BOOKE_DEAR]) },
     { "mcsr", offsetof(CPUState, spr[SPR_BOOKE_MCSR]) },
     { "tsr", offsetof(CPUState, spr[SPR_BOOKE_TSR]) },
     { "tcr", offsetof(CPUState, spr[SPR_BOOKE_TCR]) },
     { "vrsave", offsetof(CPUState, spr[SPR_VRSAVE]) },
     { "pir", offsetof(CPUState, spr[SPR_BOOKE_PIR]) },
     { "mcsrr0", offsetof(CPUState, spr[SPR_BOOKE_MCSRR0]) },
     { "mcsrr1", offsetof(CPUState, spr[SPR_BOOKE_MCSRR1]) },
     { "decar", offsetof(CPUState, spr[SPR_BOOKE_DECAR]) },
     { "ivpr", offsetof(CPUState, spr[SPR_BOOKE_IVPR]) },
     { "epcr", offsetof(CPUState, spr[SPR_BOOKE_EPCR]) },
     { "sprg8", offsetof(CPUState, spr[SPR_BOOKE_SPRG8]) },
     { "ivor0", offsetof(CPUState, spr[SPR_BOOKE_IVOR0]) },
     { "ivor1", offsetof(CPUState, spr[SPR_BOOKE_IVOR1]) },
     { "ivor2", offsetof(CPUState, spr[SPR_BOOKE_IVOR2]) },
     { "ivor3", offsetof(CPUState, spr[SPR_BOOKE_IVOR3]) },
     { "ivor4", offsetof(CPUState, spr[SPR_BOOKE_IVOR4]) },
     { "ivor5", offsetof(CPUState, spr[SPR_BOOKE_IVOR5]) },
     { "ivor6", offsetof(CPUState, spr[SPR_BOOKE_IVOR6]) },
     { "ivor7", offsetof(CPUState, spr[SPR_BOOKE_IVOR7]) },
     { "ivor8", offsetof(CPUState, spr[SPR_BOOKE_IVOR8]) },
     { "ivor9", offsetof(CPUState, spr[SPR_BOOKE_IVOR9]) },
     { "ivor10", offsetof(CPUState, spr[SPR_BOOKE_IVOR10]) },
     { "ivor11", offsetof(CPUState, spr[SPR_BOOKE_IVOR11]) },
     { "ivor12", offsetof(CPUState, spr[SPR_BOOKE_IVOR12]) },
     { "ivor13", offsetof(CPUState, spr[SPR_BOOKE_IVOR13]) },
     { "ivor14", offsetof(CPUState, spr[SPR_BOOKE_IVOR14]) },
     { "ivor15", offsetof(CPUState, spr[SPR_BOOKE_IVOR15]) },
     { "ivor32", offsetof(CPUState, spr[SPR_BOOKE_IVOR32]) },
     { "ivor33", offsetof(CPUState, spr[SPR_BOOKE_IVOR33]) },
     { "ivor34", offsetof(CPUState, spr[SPR_BOOKE_IVOR34]) },
     { "ivor35", offsetof(CPUState, spr[SPR_BOOKE_IVOR35]) },
     { "ivor36", offsetof(CPUState, spr[SPR_BOOKE_IVOR36]) },
     { "ivor37", offsetof(CPUState, spr[SPR_BOOKE_IVOR37]) },
     { "mas0", offsetof(CPUState, spr[SPR_BOOKE_MAS0]) },
     { "mas1", offsetof(CPUState, spr[SPR_BOOKE_MAS1]) },
     { "mas2", offsetof(CPUState, spr[SPR_BOOKE_MAS2]) },
     { "mas3", offsetof(CPUState, spr[SPR_BOOKE_MAS3]) },
     { "mas4", offsetof(CPUState, spr[SPR_BOOKE_MAS4]) },
     { "mas6", offsetof(CPUState, spr[SPR_BOOKE_MAS6]) },
     { "mas7", offsetof(CPUState, spr[SPR_BOOKE_MAS7]) },
     { "mmucfg", offsetof(CPUState, spr[SPR_MMUCFG]) },
     { "tlb0cfg", offsetof(CPUState, spr[SPR_BOOKE_TLB0CFG]) },
     { "tlb1cfg", offsetof(CPUState, spr[SPR_BOOKE_TLB1CFG]) },
     { "epr", offsetof(CPUState, spr[SPR_BOOKE_EPR]) },
     { "eplc", offsetof(CPUState, spr[SPR_BOOKE_EPLC]) },
     { "epsc", offsetof(CPUState, spr[SPR_BOOKE_EPSC]) },
     { "svr", offsetof(CPUState, spr[SPR_E500_SVR]) },
     { "mcar", offsetof(CPUState, spr[SPR_Exxx_MCAR]) },
     { "pid1", offsetof(CPUState, spr[SPR_BOOKE_PID1]) },
     { "pid2", offsetof(CPUState, spr[SPR_BOOKE_PID2]) },
     { "hid0", offsetof(CPUState, spr[SPR_HID0]) },

 #elif defined(TARGET_SPARC)
     { "g0", offsetof(CPUState, gregs[0]) },
     { "g1", offsetof(CPUState, gregs[1]) },
     { "g2", offsetof(CPUState, gregs[2]) },
     { "g3", offsetof(CPUState, gregs[3]) },
     { "g4", offsetof(CPUState, gregs[4]) },
     { "g5", offsetof(CPUState, gregs[5]) },
     { "g6", offsetof(CPUState, gregs[6]) },
     { "g7", offsetof(CPUState, gregs[7]) },
     { "o0", 0, monitor_get_reg },
     { "o1", 1, monitor_get_reg },
     { "o2", 2, monitor_get_reg },
     { "o3", 3, monitor_get_reg },
     { "o4", 4, monitor_get_reg },
     { "o5", 5, monitor_get_reg },
     { "o6", 6, monitor_get_reg },
     { "o7", 7, monitor_get_reg },
     { "l0", 8, monitor_get_reg },
     { "l1", 9, monitor_get_reg },
     { "l2", 10, monitor_get_reg },
     { "l3", 11, monitor_get_reg },
     { "l4", 12, monitor_get_reg },
     { "l5", 13, monitor_get_reg },
     { "l6", 14, monitor_get_reg },
     { "l7", 15, monitor_get_reg },
     { "i0", 16, monitor_get_reg },
     { "i1", 17, monitor_get_reg },
     { "i2", 18, monitor_get_reg },
     { "i3", 19, monitor_get_reg },
     { "i4", 20, monitor_get_reg },
     { "i5", 21, monitor_get_reg },
     { "i6", 22, monitor_get_reg },
     { "i7", 23, monitor_get_reg },
     { "pc", offsetof(CPUState, pc) },
     { "npc", offsetof(CPUState, npc) },
     { "y", offsetof(CPUState, y) },
 #ifndef TARGET_SPARC64
     { "psr", 0, &monitor_get_psr, },
     { "wim", offsetof(CPUState, wim) },
 #endif
     { "tbr", offsetof(CPUState, tbr) },
     { "fsr", offsetof(CPUState, fsr) },
     { "f0", offsetof(CPUState, fpr[0].l.upper) },
     { "f1", offsetof(CPUState, fpr[0].l.lower) },
     { "f2", offsetof(CPUState, fpr[1].l.upper) },
     { "f3", offsetof(CPUState, fpr[1].l.lower) },
     { "f4", offsetof(CPUState, fpr[2].l.upper) },
     { "f5", offsetof(CPUState, fpr[2].l.lower) },
     { "f6", offsetof(CPUState, fpr[3].l.upper) },
     { "f7", offsetof(CPUState, fpr[3].l.lower) },
     { "f8", offsetof(CPUState, fpr[4].l.upper) },
     { "f9", offsetof(CPUState, fpr[4].l.lower) },
     { "f10", offsetof(CPUState, fpr[5].l.upper) },
     { "f11", offsetof(CPUState, fpr[5].l.lower) },
     { "f12", offsetof(CPUState, fpr[6].l.upper) },
     { "f13", offsetof(CPUState, fpr[6].l.lower) },
     { "f14", offsetof(CPUState, fpr[7].l.upper) },
     { "f15", offsetof(CPUState, fpr[7].l.lower) },
     { "f16", offsetof(CPUState, fpr[8].l.upper) },
     { "f17", offsetof(CPUState, fpr[8].l.lower) },
     { "f18", offsetof(CPUState, fpr[9].l.upper) },
     { "f19", offsetof(CPUState, fpr[9].l.lower) },
     { "f20", offsetof(CPUState, fpr[10].l.upper) },
     { "f21", offsetof(CPUState, fpr[10].l.lower) },
     { "f22", offsetof(CPUState, fpr[11].l.upper) },
     { "f23", offsetof(CPUState, fpr[11].l.lower) },
     { "f24", offsetof(CPUState, fpr[12].l.upper) },
     { "f25", offsetof(CPUState, fpr[12].l.lower) },
     { "f26", offsetof(CPUState, fpr[13].l.upper) },
     { "f27", offsetof(CPUState, fpr[13].l.lower) },
     { "f28", offsetof(CPUState, fpr[14].l.upper) },
     { "f29", offsetof(CPUState, fpr[14].l.lower) },
     { "f30", offsetof(CPUState, fpr[15].l.upper) },
     { "f31", offsetof(CPUState, fpr[15].l.lower) },
 #ifdef TARGET_SPARC64
     { "f32", offsetof(CPUState, fpr[16]) },
     { "f34", offsetof(CPUState, fpr[17]) },
     { "f36", offsetof(CPUState, fpr[18]) },
     { "f38", offsetof(CPUState, fpr[19]) },
     { "f40", offsetof(CPUState, fpr[20]) },
     { "f42", offsetof(CPUState, fpr[21]) },
     { "f44", offsetof(CPUState, fpr[22]) },
     { "f46", offsetof(CPUState, fpr[23]) },
     { "f48", offsetof(CPUState, fpr[24]) },
     { "f50", offsetof(CPUState, fpr[25]) },
     { "f52", offsetof(CPUState, fpr[26]) },
     { "f54", offsetof(CPUState, fpr[27]) },
     { "f56", offsetof(CPUState, fpr[28]) },
     { "f58", offsetof(CPUState, fpr[29]) },
     { "f60", offsetof(CPUState, fpr[30]) },
     { "f62", offsetof(CPUState, fpr[31]) },
     { "asi", offsetof(CPUState, asi) },
     { "pstate", offsetof(CPUState, pstate) },
     { "cansave", offsetof(CPUState, cansave) },
     { "canrestore", offsetof(CPUState, canrestore) },
     { "otherwin", offsetof(CPUState, otherwin) },
     { "wstate", offsetof(CPUState, wstate) },
     { "cleanwin", offsetof(CPUState, cleanwin) },
     { "fprs", offsetof(CPUState, fprs) },
 #endif
 #endif
     { NULL },
 };

 static void expr_error(Monitor *mon, const char *msg)
 {
     monitor_printf(mon, "%s\n", msg);
     longjmp(expr_env, 1);
 }

 /* return 0 if OK, -1 if not found */
 static int get_monitor_def(target_long *pval, const char *name)
 {
     const MonitorDef *md;
     void *ptr;

     for(md = monitor_defs; md->name != NULL; md++) {
         if (compare_cmd(name, md->name)) {
             if (md->get_value) {
                 *pval = md->get_value(md, md->offset);
             } else {
                 CPUState *env = mon_get_cpu();
                 ptr = (uint8_t *)env + md->offset;
                 switch(md->type) {
                 case MD_I32:
                     *pval = *(int32_t *)ptr;
                     break;
                 case MD_TLONG:
                     *pval = *(target_long *)ptr;
                     break;
                 default:
                     *pval = 0;
                     break;
                 }
             }
             return 0;
         }
     }
     return -1;
 }

 static void next(void)
 {
     if (*pch != '\0') {
         pch++;
         while (qemu_isspace(*pch))
             pch++;
     }
 }

 static int64_t expr_sum(Monitor *mon);

 static int64_t expr_unary(Monitor *mon)
 {
     int64_t n;
     char *p;
     int ret;

     switch(*pch) {
     case '+':
         next();
         n = expr_unary(mon);
         break;
     case '-':
         next();
         n = -expr_unary(mon);
         break;
     case '~':
         next();
         n = ~expr_unary(mon);
         break;
     case '(':
         next();
         n = expr_sum(mon);
         if (*pch != ')') {
             expr_error(mon, "')' expected");
         }
         next();
         break;
     case '\'':
         pch++;
         if (*pch == '\0')
             expr_error(mon, "character constant expected");
         n = *pch;
         pch++;
         if (*pch != '\'')
             expr_error(mon, "missing terminating \' character");
         next();
         break;
     case '$':
         {
             char buf[128], *q;
             target_long reg=0;

             pch++;
             q = buf;
             while ((*pch >= 'a' && *pch <= 'z') ||
                    (*pch >= 'A' && *pch <= 'Z') ||
                    (*pch >= '0' && *pch <= '9') ||
                    *pch == '_' || *pch == '.') {
                 if ((q - buf) < sizeof(buf) - 1)
                     *q++ = *pch;
                 pch++;
             }
             while (qemu_isspace(*pch))
                 pch++;
             *q = 0;
             ret = get_monitor_def(&reg, buf);
             if (ret < 0)
                 expr_error(mon, "unknown register");
             n = reg;
         }
         break;
     case '\0':
         expr_error(mon, "unexpected end of expression");
         n = 0;
         break;
     default:
 #if TARGET_PHYS_ADDR_BITS > 32
         n = strtoull(pch, &p, 0);
 #else
         n = strtoul(pch, &p, 0);
 #endif
         if (pch == p) {
             expr_error(mon, "invalid char in expression");
         }
         pch = p;
         while (qemu_isspace(*pch))
             pch++;
         break;
     }
     return n;
 }


 static int64_t expr_prod(Monitor *mon)
 {
     int64_t val, val2;
     int op;

     val = expr_unary(mon);
     for(;;) {
         op = *pch;
         if (op != '*' && op != '/' && op != '%')
             break;
         next();
         val2 = expr_unary(mon);
         switch(op) {
         default:
         case '*':
             val *= val2;
             break;
         case '/':
         case '%':
             if (val2 == 0)
                 expr_error(mon, "division by zero");
             if (op == '/')
                 val /= val2;
             else
                 val %= val2;
             break;
         }
     }
     return val;
 }

 static int64_t expr_logic(Monitor *mon)
 {
     int64_t val, val2;
     int op;

     val = expr_prod(mon);
     for(;;) {
         op = *pch;
         if (op != '&' && op != '|' && op != '^')
             break;
         next();
         val2 = expr_prod(mon);
         switch(op) {
         default:
         case '&':
             val &= val2;
             break;
         case '|':
             val |= val2;
             break;
         case '^':
             val ^= val2;
             break;
         }
     }
     return val;
 }

 static int64_t expr_sum(Monitor *mon)
 {
     int64_t val, val2;
     int op;

     val = expr_logic(mon);
     for(;;) {
         op = *pch;
         if (op != '+' && op != '-')
             break;
         next();
         val2 = expr_logic(mon);
         if (op == '+')
             val += val2;
         else
             val -= val2;
     }
     return val;
 }

 static int get_expr(Monitor *mon, int64_t *pval, const char **pp)
 {
     pch = *pp;
     if (setjmp(expr_env)) {
         *pp = pch;
         return -1;
     }
     while (qemu_isspace(*pch))
         pch++;
     *pval = expr_sum(mon);
     *pp = pch;
     return 0;
 }

 static int get_double(Monitor *mon, double *pval, const char **pp)
 {
     const char *p = *pp;
     char *tailp;
     double d;

     d = strtod(p, &tailp);
     if (tailp == p) {
         monitor_printf(mon, "Number expected\n");
         return -1;
     }
     if (d != d || d - d != 0) {
         /* NaN or infinity */
         monitor_printf(mon, "Bad number\n");
         return -1;
     }
     *pval = d;
     *pp = tailp;
     return 0;
 }

 static int get_str(char *buf, int buf_size, const char **pp)
 {
     const char *p;
     char *q;
     int c;

     q = buf;
     p = *pp;
     while (qemu_isspace(*p))
         p++;
     if (*p == '\0') {
     fail:
         *q = '\0';
         *pp = p;
         return -1;
     }
     if (*p == '\"') {
         p++;
         while (*p != '\0' && *p != '\"') {
             if (*p == '\\') {
                 p++;
                 c = *p++;
                 switch(c) {
                 case 'n':
                     c = '\n';
                     break;
                 case 'r':
                     c = '\r';
                     break;
                 case '\\':
                 case '\'':
                 case '\"':
                     break;
                 default:
                     qemu_printf("unsupported escape code: '\\%c'\n", c);
                     goto fail;
                 }
                 if ((q - buf) < buf_size - 1) {
                     *q++ = c;
                 }
             } else {
                 if ((q - buf) < buf_size - 1) {
                     *q++ = *p;
                 }
                 p++;
             }
         }
         if (*p != '\"') {
             qemu_printf("unterminated string\n");
             goto fail;
         }
         p++;
     } else {
         while (*p != '\0' && !qemu_isspace(*p)) {
             if ((q - buf) < buf_size - 1) {
                 *q++ = *p;
             }
             p++;
         }
     }
     *q = '\0';
     *pp = p;
     return 0;
 }

 /*
  * Store the command-name in cmdname, and return a pointer to
  * the remaining of the command string.
  */
 static const char *get_command_name(const char *cmdline,
                                     char *cmdname, size_t nlen)
 {
     size_t len;
     const char *p, *pstart;

     p = cmdline;
     while (qemu_isspace(*p))
         p++;
     if (*p == '\0')
         return NULL;
     pstart = p;
     while (*p != '\0' && *p != '/' && !qemu_isspace(*p))
         p++;
     len = p - pstart;
     if (len > nlen - 1)
         len = nlen - 1;
     memcpy(cmdname, pstart, len);
     cmdname[len] = '\0';
     return p;
 }

 /**
  * Read key of 'type' into 'key' and return the current
  * 'type' pointer.
  */
 static char *key_get_info(const char *type, char **key)
 {
     size_t len;
     char *p, *str;

     if (*type == ',')
         type++;

     p = strchr(type, ':');
     if (!p) {
         *key = NULL;
         return NULL;
     }
     len = p - type;

     str = g_malloc(len + 1);
     memcpy(str, type, len);
     str[len] = '\0';

     *key = str;
     return ++p;
 }

 static int default_fmt_format = 'x';
 static int default_fmt_size = 4;

 #define MAX_ARGS 16

 static int is_valid_option(const char *c, const char *typestr)
 {
     char option[3];

     option[0] = '-';
     option[1] = *c;
     option[2] = '\0';

     typestr = strstr(typestr, option);
     return (typestr != NULL);
 }

 static const mon_cmd_t *search_dispatch_table(const mon_cmd_t *disp_table,
                                               const char *cmdname)
 {
     const mon_cmd_t *cmd;

     for (cmd = disp_table; cmd->name != NULL; cmd++) {
         if (compare_cmd(cmdname, cmd->name)) {
             return cmd;
         }
     }

     return NULL;
 }

 static const mon_cmd_t *monitor_find_command(const char *cmdname)
 {
     return search_dispatch_table(mon_cmds, cmdname);
 }

 static const mon_cmd_t *qmp_find_cmd(const char *cmdname)
 {
     return search_dispatch_table(qmp_cmds, cmdname);
 }

 static const mon_cmd_t *monitor_parse_command(Monitor *mon,
                                               const char *cmdline,
                                               QDict *qdict)
 {
     const char *p, *typestr;
     int c;
     const mon_cmd_t *cmd;
     char cmdname[256];
     char buf[1024];
     char *key;

 #ifdef DEBUG
     monitor_printf(mon, "command='%s'\n", cmdline);
 #endif

     /* extract the command name */
     p = get_command_name(cmdline, cmdname, sizeof(cmdname));
     if (!p)
         return NULL;

     cmd = monitor_find_command(cmdname);
     if (!cmd) {
         monitor_printf(mon, "unknown command: '%s'\n", cmdname);
         return NULL;
     }

     /* parse the parameters */
     typestr = cmd->args_type;
     for(;;) {
         typestr = key_get_info(typestr, &key);
         if (!typestr)
             break;
         c = *typestr;
         typestr++;
         switch(c) {
         case 'F':
         case 'B':
         case 's':
             {
                 int ret;

                 while (qemu_isspace(*p))
                     p++;
                 if (*typestr == '?') {
                     typestr++;
                     if (*p == '\0') {
                         /* no optional string: NULL argument */
                         break;
                     }
                 }
                 ret = get_str(buf, sizeof(buf), &p);
                 if (ret < 0) {
                     switch(c) {
                     case 'F':
                         monitor_printf(mon, "%s: filename expected\n",
                                        cmdname);
                         break;
                     case 'B':
                         monitor_printf(mon, "%s: block device name expected\n",
                                        cmdname);
                         break;
                     default:
                         monitor_printf(mon, "%s: string expected\n", cmdname);
                         break;
                     }
                     goto fail;
                 }
                 qdict_put(qdict, key, qstring_from_str(buf));
             }
             break;
         case 'O':
             {
                 QemuOptsList *opts_list;
                 QemuOpts *opts;

                 opts_list = qemu_find_opts(key);
                 if (!opts_list || opts_list->desc->name) {
                     goto bad_type;
                 }
                 while (qemu_isspace(*p)) {
                     p++;
                 }
                 if (!*p)
                     break;
                 if (get_str(buf, sizeof(buf), &p) < 0) {
                     goto fail;
                 }
                 opts = qemu_opts_parse(opts_list, buf, 1);
                 if (!opts) {
                     goto fail;
                 }
                 qemu_opts_to_qdict(opts, qdict);
                 qemu_opts_del(opts);
             }
             break;
         case '/':
             {
                 int count, format, size;

                 while (qemu_isspace(*p))
                     p++;
                 if (*p == '/') {
                     /* format found */
                     p++;
                     count = 1;
                     if (qemu_isdigit(*p)) {
                         count = 0;
                         while (qemu_isdigit(*p)) {
                             count = count * 10 + (*p - '0');
                             p++;
                         }
                     }
                     size = -1;
                     format = -1;
                     for(;;) {
                         switch(*p) {
                         case 'o':
                         case 'd':
                         case 'u':
                         case 'x':
                         case 'i':
                         case 'c':
                             format = *p++;
                             break;
                         case 'b':
                             size = 1;
                             p++;
                             break;
                         case 'h':
                             size = 2;
                             p++;
                             break;
                         case 'w':
                             size = 4;
                             p++;
                             break;
                         case 'g':
                         case 'L':
                             size = 8;
                             p++;
                             break;
                         default:
                             goto next;
                         }
                     }
                 next:
                     if (*p != '\0' && !qemu_isspace(*p)) {
                         monitor_printf(mon, "invalid char in format: '%c'\n",
                                        *p);
                         goto fail;
                     }
                     if (format < 0)
                         format = default_fmt_format;
                     if (format != 'i') {
                         /* for 'i', not specifying a size gives -1 as size */
                         if (size < 0)
                             size = default_fmt_size;
                         default_fmt_size = size;
                     }
                     default_fmt_format = format;
                 } else {
                     count = 1;
                     format = default_fmt_format;
                     if (format != 'i') {
                         size = default_fmt_size;
                     } else {
                         size = -1;
                     }
                 }
                 qdict_put(qdict, "count", qint_from_int(count));
                 qdict_put(qdict, "format", qint_from_int(format));
                 qdict_put(qdict, "size", qint_from_int(size));
             }
             break;
         case 'i':
         case 'l':
         case 'M':
             {
                 int64_t val;

                 while (qemu_isspace(*p))
                     p++;
                 if (*typestr == '?' || *typestr == '.') {
                     if (*typestr == '?') {
                         if (*p == '\0') {
                             typestr++;
                             break;
                         }
                     } else {
                         if (*p == '.') {
                             p++;
                             while (qemu_isspace(*p))
                                 p++;
                         } else {
                             typestr++;
                             break;
                         }
                     }
                     typestr++;
                 }
                 if (get_expr(mon, &val, &p))
                     goto fail;
                 /* Check if 'i' is greater than 32-bit */
                 if ((c == 'i') && ((val >> 32) & 0xffffffff)) {
                     monitor_printf(mon, "\'%s\' has failed: ", cmdname);
                     monitor_printf(mon, "integer is for 32-bit values\n");
                     goto fail;
                 } else if (c == 'M') {
                     val <<= 20;
                 }
                 qdict_put(qdict, key, qint_from_int(val));
             }
             break;
         case 'o':
             {
                 int64_t val;
                 char *end;

                 while (qemu_isspace(*p)) {
                     p++;
                 }
                 if (*typestr == '?') {
                     typestr++;
                     if (*p == '\0') {
                         break;
                     }
                 }
                 val = strtosz(p, &end);
                 if (val < 0) {
                     monitor_printf(mon, "invalid size\n");
                     goto fail;
                 }
                 qdict_put(qdict, key, qint_from_int(val));
                 p = end;
             }
             break;
         case 'T':
             {
                 double val;

                 while (qemu_isspace(*p))
                     p++;
                 if (*typestr == '?') {
                     typestr++;
                     if (*p == '\0') {
                         break;
                     }
                 }
                 if (get_double(mon, &val, &p) < 0) {
                     goto fail;
                 }
                 if (p[0] && p[1] == 's') {
                     switch (*p) {
                     case 'm':
                         val /= 1e3; p += 2; break;
                     case 'u':
                         val /= 1e6; p += 2; break;
                     case 'n':
                         val /= 1e9; p += 2; break;
                     }
                 }
                 if (*p && !qemu_isspace(*p)) {
                     monitor_printf(mon, "Unknown unit suffix\n");
                     goto fail;
                 }
                 qdict_put(qdict, key, qfloat_from_double(val));
             }
             break;
         case 'b':
             {
                 const char *beg;
                 int val;

                 while (qemu_isspace(*p)) {
                     p++;
                 }
                 beg = p;
                 while (qemu_isgraph(*p)) {
                     p++;
                 }
                 if (p - beg == 2 && !memcmp(beg, "on", p - beg)) {
                     val = 1;
                 } else if (p - beg == 3 && !memcmp(beg, "off", p - beg)) {
                     val = 0;
                 } else {
                     monitor_printf(mon, "Expected 'on' or 'off'\n");
                     goto fail;
                 }
                 qdict_put(qdict, key, qbool_from_int(val));
             }
             break;
         case '-':
             {
                 const char *tmp = p;
                 int skip_key = 0;
                 /* option */

                 c = *typestr++;
                 if (c == '\0')
                     goto bad_type;
                 while (qemu_isspace(*p))
                     p++;
                 if (*p == '-') {
                     p++;
                     if(c != *p) {
                         if(!is_valid_option(p, typestr)) {

                             monitor_printf(mon, "%s: unsupported option -%c\n",
                                            cmdname, *p);
                             goto fail;
                         } else {
                             skip_key = 1;
                         }
                     }
                     if(skip_key) {
                         p = tmp;
                     } else {
                         /* has option */
                         p++;
                         qdict_put(qdict, key, qbool_from_int(1));
                     }
                 }
             }
             break;
         default:
         bad_type:
             monitor_printf(mon, "%s: unknown type '%c'\n", cmdname, c);
             goto fail;
         }
         g_free(key);
         key = NULL;
     }
     /* check that all arguments were parsed */
     while (qemu_isspace(*p))
         p++;
     if (*p != '\0') {
         monitor_printf(mon, "%s: extraneous characters at the end of line\n",
                        cmdname);
         goto fail;
     }

     return cmd;

 fail:
     g_free(key);
     return NULL;
 }

 void monitor_set_error(Monitor *mon, QError *qerror)
 {
     /* report only the first error */
     if (!mon->error) {
         mon->error = qerror;
     } else {
         MON_DEBUG("Additional error report at %s:%d\n",
                   qerror->file, qerror->linenr);
         QDECREF(qerror);
     }
 }

 static void handler_audit(Monitor *mon, const mon_cmd_t *cmd, int ret)
 {
     if (ret && !monitor_has_error(mon)) {
         /*
          * If it returns failure, it must have passed on error.
          *
          * Action: Report an internal error to the client if in QMP.
          */
         qerror_report(QERR_UNDEFINED_ERROR);
         MON_DEBUG("command '%s' returned failure but did not pass an error\n",
                   cmd->name);
     }

 #ifdef CONFIG_DEBUG_MONITOR
     if (!ret && monitor_has_error(mon)) {
         /*
          * If it returns success, it must not have passed an error.
          *
          * Action: Report the passed error to the client.
          */
         MON_DEBUG("command '%s' returned success but passed an error\n",
                   cmd->name);
     }

     if (mon_print_count_get(mon) > 0 && strcmp(cmd->name, "info") != 0) {
         /*
          * Handlers should not call Monitor print functions.
          *
          * Action: Ignore them in QMP.
          *
          * (XXX: we don't check any 'info' or 'query' command here
          * because the user print function _is_ called by do_info(), hence
          * we will trigger this check. This problem will go away when we
          * make 'query' commands real and kill do_info())
          */
         MON_DEBUG("command '%s' called print functions %d time(s)\n",
                   cmd->name, mon_print_count_get(mon));
     }
 #endif
 }

 static void handle_user_command(Monitor *mon, const char *cmdline)
 {
     QDict *qdict;
     const mon_cmd_t *cmd;

     qdict = qdict_new();

     cmd = monitor_parse_command(mon, cmdline, qdict);
     if (!cmd)
         goto out;

     if (handler_is_async(cmd)) {
         user_async_cmd_handler(mon, cmd, qdict);
     } else if (handler_is_qobject(cmd)) {
         QObject *data = NULL;

         /* XXX: ignores the error code */
         cmd->mhandler.cmd_new(mon, qdict, &data);
         assert(!monitor_has_error(mon));
         if (data) {
             cmd->user_print(mon, data);
             qobject_decref(data);
         }
     } else {
         cmd->mhandler.cmd(mon, qdict);
     }

 out:
     QDECREF(qdict);
 }

 static void cmd_completion(const char *name, const char *list)
 {
     const char *p, *pstart;
     char cmd[128];
     int len;

     p = list;
     for(;;) {
         pstart = p;
         p = strchr(p, '|');
         if (!p)
             p = pstart + strlen(pstart);
         len = p - pstart;
         if (len > sizeof(cmd) - 2)
             len = sizeof(cmd) - 2;
         memcpy(cmd, pstart, len);
         cmd[len] = '\0';
         if (name[0] == '\0' || !strncmp(name, cmd, strlen(name))) {
             readline_add_completion(cur_mon->rs, cmd);
         }
         if (*p == '\0')
             break;
         p++;
     }
 }

 static void file_completion(const char *input)
 {
     DIR *ffs;
     struct dirent *d;
     char path[1024];
     char file[1024], file_prefix[1024];
     int input_path_len;
     const char *p;

     p = strrchr(input, '/');
     if (!p) {
         input_path_len = 0;
         pstrcpy(file_prefix, sizeof(file_prefix), input);
         pstrcpy(path, sizeof(path), ".");
     } else {
         input_path_len = p - input + 1;
         memcpy(path, input, input_path_len);
         if (input_path_len > sizeof(path) - 1)
             input_path_len = sizeof(path) - 1;
         path[input_path_len] = '\0';
         pstrcpy(file_prefix, sizeof(file_prefix), p + 1);
     }
 #ifdef DEBUG_COMPLETION
     monitor_printf(cur_mon, "input='%s' path='%s' prefix='%s'\n",
                    input, path, file_prefix);
 #endif
     ffs = opendir(path);
     if (!ffs)
         return;
     for(;;) {
         struct stat sb;
         d = readdir(ffs);
         if (!d)
             break;

         if (strcmp(d->d_name, ".") == 0 || strcmp(d->d_name, "..") == 0) {
             continue;
         }

         if (strstart(d->d_name, file_prefix, NULL)) {
             memcpy(file, input, input_path_len);
             if (input_path_len < sizeof(file))
                 pstrcpy(file + input_path_len, sizeof(file) - input_path_len,
                         d->d_name);
             /* stat the file to find out if it's a directory.
              * In that case add a slash to speed up typing long paths
              */
             if (stat(file, &sb) == 0 && S_ISDIR(sb.st_mode)) {
                 pstrcat(file, sizeof(file), "/");
             }
             readline_add_completion(cur_mon->rs, file);
         }
     }
     closedir(ffs);
 }

 static void block_completion_it(void *opaque, BlockDriverState *bs)
 {
     const char *name = bdrv_get_device_name(bs);
     const char *input = opaque;

     if (input[0] == '\0' ||
         !strncmp(name, (char *)input, strlen(input))) {
         readline_add_completion(cur_mon->rs, name);
     }
 }

 /* NOTE: this parser is an approximate form of the real command parser */
 static void parse_cmdline(const char *cmdline,
                          int *pnb_args, char **args)
 {
     const char *p;
     int nb_args, ret;
     char buf[1024];

     p = cmdline;
     nb_args = 0;
     for(;;) {
         while (qemu_isspace(*p))
             p++;
         if (*p == '\0')
             break;
         if (nb_args >= MAX_ARGS)
             break;
         ret = get_str(buf, sizeof(buf), &p);
         args[nb_args] = g_strdup(buf);
         nb_args++;
         if (ret < 0)
             break;
     }
     *pnb_args = nb_args;
 }

 static const char *next_arg_type(const char *typestr)
 {
     const char *p = strchr(typestr, ':');
     return (p != NULL ? ++p : typestr);
 }

 static void monitor_find_completion(const char *cmdline)
 {
     const char *cmdname;
     char *args[MAX_ARGS];
     int nb_args, i, len;
     const char *ptype, *str;
     const mon_cmd_t *cmd;
     const KeyDef *key;

     parse_cmdline(cmdline, &nb_args, args);
 #ifdef DEBUG_COMPLETION
     for(i = 0; i < nb_args; i++) {
         monitor_printf(cur_mon, "arg%d = '%s'\n", i, (char *)args[i]);
     }
 #endif

     /* if the line ends with a space, it means we want to complete the
        next arg */
     len = strlen(cmdline);
     if (len > 0 && qemu_isspace(cmdline[len - 1])) {
         if (nb_args >= MAX_ARGS) {
             goto cleanup;
         }
         args[nb_args++] = g_strdup("");
     }
     if (nb_args <= 1) {
         /* command completion */
         if (nb_args == 0)
             cmdname = "";
         else
             cmdname = args[0];
         readline_set_completion_index(cur_mon->rs, strlen(cmdname));
         for(cmd = mon_cmds; cmd->name != NULL; cmd++) {
             cmd_completion(cmdname, cmd->name);
         }
     } else {
         /* find the command */
         for (cmd = mon_cmds; cmd->name != NULL; cmd++) {
             if (compare_cmd(args[0], cmd->name)) {
                 break;
             }
         }
         if (!cmd->name) {
             goto cleanup;
         }

         ptype = next_arg_type(cmd->args_type);
         for(i = 0; i < nb_args - 2; i++) {
             if (*ptype != '\0') {
                 ptype = next_arg_type(ptype);
                 while (*ptype == '?')
                     ptype = next_arg_type(ptype);
             }
         }
         str = args[nb_args - 1];
         if (*ptype == '-' && ptype[1] != '\0') {
             ptype = next_arg_type(ptype);
         }
         switch(*ptype) {
         case 'F':
             /* file completion */
             readline_set_completion_index(cur_mon->rs, strlen(str));
             file_completion(str);
             break;
         case 'B':
             /* block device name completion */
             readline_set_completion_index(cur_mon->rs, strlen(str));
             bdrv_iterate(block_completion_it, (void *)str);
             break;
         case 's':
             /* XXX: more generic ? */
             if (!strcmp(cmd->name, "info")) {
                 readline_set_completion_index(cur_mon->rs, strlen(str));
                 for(cmd = info_cmds; cmd->name != NULL; cmd++) {
                     cmd_completion(str, cmd->name);
                 }
             } else if (!strcmp(cmd->name, "sendkey")) {
                 char *sep = strrchr(str, '-');
                 if (sep)
                     str = sep + 1;
                 readline_set_completion_index(cur_mon->rs, strlen(str));
                 for(key = key_defs; key->name != NULL; key++) {
                     cmd_completion(str, key->name);
                 }
             } else if (!strcmp(cmd->name, "help|?")) {
                 readline_set_completion_index(cur_mon->rs, strlen(str));
                 for (cmd = mon_cmds; cmd->name != NULL; cmd++) {
                     cmd_completion(str, cmd->name);
                 }
             }
             break;
         default:
             break;
         }
     }

 cleanup:
     for (i = 0; i < nb_args; i++) {
         g_free(args[i]);
     }
 }

 static int monitor_can_read(void *opaque)
 {
     Monitor *mon = opaque;

     return (mon->suspend_cnt == 0) ? 1 : 0;
 }

 static int invalid_qmp_mode(const Monitor *mon, const char *cmd_name)
 {
     int is_cap = compare_cmd(cmd_name, "qmp_capabilities");
     return (qmp_cmd_mode(mon) ? is_cap : !is_cap);
 }

 /*
  * Argument validation rules:
  *
  * 1. The argument must exist in cmd_args qdict
  * 2. The argument type must be the expected one
  *
  * Special case: If the argument doesn't exist in cmd_args and
  *               the QMP_ACCEPT_UNKNOWNS flag is set, then the
  *               checking is skipped for it.
  */
 static int check_client_args_type(const QDict *client_args,
                                   const QDict *cmd_args, int flags)
 {
     const QDictEntry *ent;

     for (ent = qdict_first(client_args); ent;ent = qdict_next(client_args,ent)){
         QObject *obj;
         QString *arg_type;
         const QObject *client_arg = qdict_entry_value(ent);
         const char *client_arg_name = qdict_entry_key(ent);

         obj = qdict_get(cmd_args, client_arg_name);
         if (!obj) {
             if (flags & QMP_ACCEPT_UNKNOWNS) {
                 /* handler accepts unknowns */
                 continue;
             }
             /* client arg doesn't exist */
             qerror_report(QERR_INVALID_PARAMETER, client_arg_name);
             return -1;
         }

         arg_type = qobject_to_qstring(obj);
         assert(arg_type != NULL);

         /* check if argument's type is correct */
         switch (qstring_get_str(arg_type)[0]) {
         case 'F':
         case 'B':
         case 's':
             if (qobject_type(client_arg) != QTYPE_QSTRING) {
                 qerror_report(QERR_INVALID_PARAMETER_TYPE, client_arg_name,
                               "string");
                 return -1;
             }
         break;
         case 'i':
         case 'l':
         case 'M':
         case 'o':
             if (qobject_type(client_arg) != QTYPE_QINT) {
                 qerror_report(QERR_INVALID_PARAMETER_TYPE, client_arg_name,
                               "int");
                 return -1;
             }
             break;
         case 'T':
             if (qobject_type(client_arg) != QTYPE_QINT &&
                 qobject_type(client_arg) != QTYPE_QFLOAT) {
                 qerror_report(QERR_INVALID_PARAMETER_TYPE, client_arg_name,
                               "number");
                return -1;
             }
             break;
         case 'b':
         case '-':
             if (qobject_type(client_arg) != QTYPE_QBOOL) {
                 qerror_report(QERR_INVALID_PARAMETER_TYPE, client_arg_name,
                               "bool");
                return -1;
             }
             break;
         case 'O':
             assert(flags & QMP_ACCEPT_UNKNOWNS);
             break;
         case '/':
         case '.':
             /*
              * These types are not supported by QMP and thus are not
              * handled here. Fall through.
              */
         default:
             abort();
         }
     }

     return 0;
 }

 /*
  * - Check if the client has passed all mandatory args
  * - Set special flags for argument validation
  */
 static int check_mandatory_args(const QDict *cmd_args,
                                 const QDict *client_args, int *flags)
 {
     const QDictEntry *ent;

     for (ent = qdict_first(cmd_args); ent; ent = qdict_next(cmd_args, ent)) {
         const char *cmd_arg_name = qdict_entry_key(ent);
         QString *type = qobject_to_qstring(qdict_entry_value(ent));
         assert(type != NULL);

         if (qstring_get_str(type)[0] == 'O') {
             assert((*flags & QMP_ACCEPT_UNKNOWNS) == 0);
             *flags |= QMP_ACCEPT_UNKNOWNS;
         } else if (qstring_get_str(type)[0] != '-' &&
                    qstring_get_str(type)[1] != '?' &&
                    !qdict_haskey(client_args, cmd_arg_name)) {
             qerror_report(QERR_MISSING_PARAMETER, cmd_arg_name);
             return -1;
         }
     }

     return 0;
 }

 static QDict *qdict_from_args_type(const char *args_type)
 {
     int i;
     QDict *qdict;
     QString *key, *type, *cur_qs;

     assert(args_type != NULL);

     qdict = qdict_new();

     if (args_type == NULL || args_type[0] == '\0') {
         /* no args, empty qdict */
         goto out;
     }

     key = qstring_new();
     type = qstring_new();

     cur_qs = key;

     for (i = 0;; i++) {
         switch (args_type[i]) {
             case ',':
             case '\0':
                 qdict_put(qdict, qstring_get_str(key), type);
                 QDECREF(key);
                 if (args_type[i] == '\0') {
                     goto out;
                 }
                 type = qstring_new(); /* qdict has ref */
                 cur_qs = key = qstring_new();
                 break;
             case ':':
                 cur_qs = type;
                 break;
             default:
                 qstring_append_chr(cur_qs, args_type[i]);
                 break;
         }
     }

 out:
     return qdict;
 }

 /*
  * Client argument checking rules:
  *
  * 1. Client must provide all mandatory arguments
  * 2. Each argument provided by the client must be expected
  * 3. Each argument provided by the client must have the type expected
  *    by the command
  */
 static int qmp_check_client_args(const mon_cmd_t *cmd, QDict *client_args)
 {
     int flags, err;
     QDict *cmd_args;

     cmd_args = qdict_from_args_type(cmd->args_type);

     flags = 0;
     err = check_mandatory_args(cmd_args, client_args, &flags);
     if (err) {
         goto out;
     }

     err = check_client_args_type(client_args, cmd_args, flags);

 out:
     QDECREF(cmd_args);
     return err;
 }

 /*
  * Input object checking rules
  *
  * 1. Input object must be a dict
  * 2. The "execute" key must exist
  * 3. The "execute" key must be a string
  * 4. If the "arguments" key exists, it must be a dict
  * 5. If the "id" key exists, it can be anything (ie. json-value)
  * 6. Any argument not listed above is considered invalid
  */
 static QDict *qmp_check_input_obj(QObject *input_obj)
 {
     const QDictEntry *ent;
     int has_exec_key = 0;
     QDict *input_dict;

     if (qobject_type(input_obj) != QTYPE_QDICT) {
         qerror_report(QERR_QMP_BAD_INPUT_OBJECT, "object");
         return NULL;
     }

     input_dict = qobject_to_qdict(input_obj);

     for (ent = qdict_first(input_dict); ent; ent = qdict_next(input_dict, ent)){
         const char *arg_name = qdict_entry_key(ent);
         const QObject *arg_obj = qdict_entry_value(ent);

         if (!strcmp(arg_name, "execute")) {
             if (qobject_type(arg_obj) != QTYPE_QSTRING) {
                 qerror_report(QERR_QMP_BAD_INPUT_OBJECT_MEMBER, "execute",
                               "string");
                 return NULL;
             }
             has_exec_key = 1;
         } else if (!strcmp(arg_name, "arguments")) {
             if (qobject_type(arg_obj) != QTYPE_QDICT) {
                 qerror_report(QERR_QMP_BAD_INPUT_OBJECT_MEMBER, "arguments",
                               "object");
                 return NULL;
             }
         } else if (!strcmp(arg_name, "id")) {
             /* FIXME: check duplicated IDs for async commands */
         } else {
             qerror_report(QERR_QMP_EXTRA_MEMBER, arg_name);
             return NULL;
         }
     }

     if (!has_exec_key) {
         qerror_report(QERR_QMP_BAD_INPUT_OBJECT, "execute");
         return NULL;
     }

     return input_dict;
 }

 static void qmp_call_cmd(Monitor *mon, const mon_cmd_t *cmd,
                          const QDict *params)
 {
     int ret;
     QObject *data = NULL;

     mon_print_count_init(mon);

     ret = cmd->mhandler.cmd_new(mon, params, &data);
     handler_audit(mon, cmd, ret);
     monitor_protocol_emitter(mon, data);
     qobject_decref(data);
 }

 static void handle_qmp_command(JSONMessageParser *parser, QList *tokens)
 {
     int err;
     QObject *obj;
     QDict *input, *args;
     const mon_cmd_t *cmd;
     const char *cmd_name;
     Monitor *mon = cur_mon;

     args = input = NULL;

     obj = json_parser_parse(tokens, NULL);
     if (!obj) {
         // FIXME: should be triggered in json_parser_parse()
         qerror_report(QERR_JSON_PARSING);
         goto err_out;
     }

     input = qmp_check_input_obj(obj);
     if (!input) {
         qobject_decref(obj);
         goto err_out;
     }

     mon->mc->id = qdict_get(input, "id");
     qobject_incref(mon->mc->id);

     cmd_name = qdict_get_str(input, "execute");
     trace_handle_qmp_command(mon, cmd_name);
     if (invalid_qmp_mode(mon, cmd_name)) {
         qerror_report(QERR_COMMAND_NOT_FOUND, cmd_name);
         goto err_out;
     }

     cmd = qmp_find_cmd(cmd_name);
     if (!cmd) {
         qerror_report(QERR_COMMAND_NOT_FOUND, cmd_name);
         goto err_out;
     }

     obj = qdict_get(input, "arguments");
     if (!obj) {
         args = qdict_new();
     } else {
         args = qobject_to_qdict(obj);
         QINCREF(args);
     }

     err = qmp_check_client_args(cmd, args);
     if (err < 0) {
         goto err_out;
     }

     if (handler_is_async(cmd)) {
         err = qmp_async_cmd_handler(mon, cmd, args);
         if (err) {
             /* emit the error response */
             goto err_out;
         }
     } else {
         qmp_call_cmd(mon, cmd, args);
     }

     goto out;

 err_out:
     monitor_protocol_emitter(mon, NULL);
 out:
     QDECREF(input);
     QDECREF(args);
 }

 /**
  * monitor_control_read(): Read and handle QMP input
  */
 static void monitor_control_read(void *opaque, const uint8_t *buf, int size)
 {
     Monitor *old_mon = cur_mon;

     cur_mon = opaque;

     json_message_parser_feed(&cur_mon->mc->parser, (const char *) buf, size);

     cur_mon = old_mon;
 }

 static void monitor_read(void *opaque, const uint8_t *buf, int size)
 {
     Monitor *old_mon = cur_mon;
     int i;

     cur_mon = opaque;

     if (cur_mon->rs) {
         for (i = 0; i < size; i++)
             readline_handle_byte(cur_mon->rs, buf[i]);
     } else {
         if (size == 0 || buf[size - 1] != 0)
             monitor_printf(cur_mon, "corrupted command\n");
         else
             handle_user_command(cur_mon, (char *)buf);
     }

     cur_mon = old_mon;
 }

 static void monitor_command_cb(Monitor *mon, const char *cmdline, void *opaque)
 {
     monitor_suspend(mon);
     handle_user_command(mon, cmdline);
     monitor_resume(mon);
 }

 int monitor_suspend(Monitor *mon)
 {
     if (!mon->rs)
         return -ENOTTY;
     mon->suspend_cnt++;
     return 0;
 }

 void monitor_resume(Monitor *mon)
 {
     if (!mon->rs)
         return;
     if (--mon->suspend_cnt == 0)
         readline_show_prompt(mon->rs);
 }

 static QObject *get_qmp_greeting(void)
 {
     QObject *ver = NULL;

     qmp_marshal_input_query_version(NULL, NULL, &ver);
     return qobject_from_jsonf("{'QMP':{'version': %p,'capabilities': []}}",ver);
 }

 /**
  * monitor_control_event(): Print QMP gretting
  */
 static void monitor_control_event(void *opaque, int event)
 {
     QObject *data;
     Monitor *mon = opaque;

     switch (event) {
     case CHR_EVENT_OPENED:
         mon->mc->command_mode = 0;
         json_message_parser_init(&mon->mc->parser, handle_qmp_command);
         data = get_qmp_greeting();
         monitor_json_emitter(mon, data);
         qobject_decref(data);
         break;
     case CHR_EVENT_CLOSED:
         json_message_parser_destroy(&mon->mc->parser);
         break;
     }
 }

 static void monitor_event(void *opaque, int event)
 {
     Monitor *mon = opaque;

     switch (event) {
     case CHR_EVENT_MUX_IN:
         mon->mux_out = 0;
         if (mon->reset_seen) {
             readline_restart(mon->rs);
             monitor_resume(mon);
             monitor_flush(mon);
         } else {
             mon->suspend_cnt = 0;
         }
         break;

     case CHR_EVENT_MUX_OUT:
         if (mon->reset_seen) {
             if (mon->suspend_cnt == 0) {
                 monitor_printf(mon, "\n");
             }
             monitor_flush(mon);
             monitor_suspend(mon);
         } else {
             mon->suspend_cnt++;
         }
         mon->mux_out = 1;
         break;

     case CHR_EVENT_OPENED:
         monitor_printf(mon, "QEMU %s monitor - type 'help' for more "
                        "information\n", QEMU_VERSION);
         if (!mon->mux_out) {
             readline_show_prompt(mon->rs);
         }
         mon->reset_seen = 1;
         break;
     }
 }

 static int
 compare_mon_cmd(const void *a, const void *b)
 {
     return strcmp(((const mon_cmd_t *)a)->name,
             ((const mon_cmd_t *)b)->name);
 }

 static void sortcmdlist(void)
 {
     int array_num;
     int elem_size = sizeof(mon_cmd_t);

     array_num = sizeof(mon_cmds)/elem_size-1;
     qsort((void *)mon_cmds, array_num, elem_size, compare_mon_cmd);

     array_num = sizeof(info_cmds)/elem_size-1;
     qsort((void *)info_cmds, array_num, elem_size, compare_mon_cmd);
 }


 /*
  * Local variables:
  *  c-indent-level: 4
  *  c-basic-offset: 4
  *  tab-width: 8
  * End:
  */

 void monitor_init(CharDriverState *chr, int flags)
 {
     static int is_first_init = 1;
     Monitor *mon;

     if (is_first_init) {
         key_timer = qemu_new_timer_ns(vm_clock, release_keys, NULL);
         is_first_init = 0;
     }

     mon = g_malloc0(sizeof(*mon));

     mon->chr = chr;
     mon->flags = flags;
     if (flags & MONITOR_USE_READLINE) {
         mon->rs = readline_init(mon, monitor_find_completion);
         monitor_read_command(mon, 0);
     }

     if (monitor_ctrl_mode(mon)) {
         mon->mc = g_malloc0(sizeof(MonitorControl));
         /* Control mode requires special handlers */
         qemu_chr_add_handlers(chr, monitor_can_read, monitor_control_read,
                               monitor_control_event, mon);
         qemu_chr_fe_set_echo(chr, true);
     } else {
         qemu_chr_add_handlers(chr, monitor_can_read, monitor_read,
                               monitor_event, mon);
     }

     QLIST_INSERT_HEAD(&mon_list, mon, entry);
     if (!default_mon || (flags & MONITOR_IS_DEFAULT))
         default_mon = mon;

     sortcmdlist();
 }

 static void bdrv_password_cb(Monitor *mon, const char *password, void *opaque)
 {
     BlockDriverState *bs = opaque;
     int ret = 0;

     if (bdrv_set_key(bs, password) != 0) {
         monitor_printf(mon, "invalid password\n");
         ret = -EPERM;
     }
     if (mon->password_completion_cb)
         mon->password_completion_cb(mon->password_opaque, ret);

     monitor_read_command(mon, 1);
 }

 ReadLineState *monitor_get_rs(Monitor *mon)
 {
     return mon->rs;
 }

 int monitor_read_bdrv_key_start(Monitor *mon, BlockDriverState *bs,
                                 BlockDriverCompletionFunc *completion_cb,
                                 void *opaque)
 {
     int err;

     if (!bdrv_key_required(bs)) {
         if (completion_cb)
             completion_cb(opaque, 0);
         return 0;
     }

     if (monitor_ctrl_mode(mon)) {
         qerror_report(QERR_DEVICE_ENCRYPTED, bdrv_get_device_name(bs),
                       bdrv_get_encrypted_filename(bs));
         return -1;
     }

     monitor_printf(mon, "%s (%s) is encrypted.\n", bdrv_get_device_name(bs),
                    bdrv_get_encrypted_filename(bs));

     mon->password_completion_cb = completion_cb;
     mon->password_opaque = opaque;

     err = monitor_read_password(mon, bdrv_password_cb, bs);

     if (err && completion_cb)
         completion_cb(opaque, err);

     return err;
 }

 int monitor_read_block_device_key(Monitor *mon, const char *device,
                                   BlockDriverCompletionFunc *completion_cb,
                                   void *opaque)
 {
     BlockDriverState *bs;

     bs = bdrv_find(device);
     if (!bs) {
         monitor_printf(mon, "Device not found %s\n", device);
         return -1;
     }

     return monitor_read_bdrv_key_start(mon, bs, completion_cb, opaque);
 }