qemu/monitor/hmp-cmds.c

/*
 * Human Monitor Interface commands
 *
 * Copyright IBM, Corp. 2011
 *
 * Authors:
 *  Anthony Liguori   <aliguori@us.ibm.com>
 *
 * This work is licensed under the terms of the GNU GPL, version 2.  See
 * the COPYING file in the top-level directory.
 *
 * Contributions after 2012-01-13 are licensed under the terms of the
 * GNU GPL, version 2 or (at your option) any later version.
 */

#include "qemu/osdep.h"
#include "monitor/hmp.h"
#include "qemu/help_option.h"
#include "monitor/monitor.h"
#include "qapi/error.h"
#include "qapi/qapi-commands-control.h"
#include "qapi/qapi-commands-misc.h"
#include "qapi/qmp/qdict.h"
#include "qapi/qmp/qerror.h"
#include "qemu/cutils.h"
#include "hw/intc/intc.h"

bool hmp_handle_error(Monitor *mon, Error *err)
{
    if (err) {
        error_reportf_err(err, "Error: ");
        return true;
    }
    return false;
}

/*
 * Split @str at comma.
 * A null @str defaults to "".
 */
strList *hmp_split_at_comma(const char *str)
{
    char **split = g_strsplit(str ?: "", ",", -1);
    strList *res = NULL;
    strList **tail = &res;
    int i;

    for (i = 0; split[i]; i++) {
        QAPI_LIST_APPEND(tail, split[i]);
    }

    g_free(split);
    return res;
}

void hmp_info_name(Monitor *mon, const QDict *qdict)
{
    NameInfo *info;

    info = qmp_query_name(NULL);
    if (info->name) {
        monitor_printf(mon, "%s\n", info->name);
    }
    qapi_free_NameInfo(info);
}

void hmp_info_version(Monitor *mon, const QDict *qdict)
{
    VersionInfo *info;

    info = qmp_query_version(NULL);

    monitor_printf(mon, "%" PRId64 ".%" PRId64 ".%" PRId64 "%s\n",
                   info->qemu->major, info->qemu->minor, info->qemu->micro,
                   info->package);

    qapi_free_VersionInfo(info);
}

static int hmp_info_pic_foreach(Object *obj, void *opaque)
{
    InterruptStatsProvider *intc;
    InterruptStatsProviderClass *k;
    Monitor *mon = opaque;

    if (object_dynamic_cast(obj, TYPE_INTERRUPT_STATS_PROVIDER)) {
        intc = INTERRUPT_STATS_PROVIDER(obj);
        k = INTERRUPT_STATS_PROVIDER_GET_CLASS(obj);
        if (k->print_info) {
            k->print_info(intc, mon);
        } else {
            monitor_printf(mon, "Interrupt controller information not available for %s.\n",
                           object_get_typename(obj));
        }
    }

    return 0;
}

void hmp_info_pic(Monitor *mon, const QDict *qdict)
{
    object_child_foreach_recursive(object_get_root(),
                                   hmp_info_pic_foreach, mon);
}

void hmp_quit(Monitor *mon, const QDict *qdict)
{
    monitor_suspend(mon);
    qmp_quit(NULL);
}

void hmp_stop(Monitor *mon, const QDict *qdict)
{
    qmp_stop(NULL);
}

void hmp_sync_profile(Monitor *mon, const QDict *qdict)
{
    const char *op = qdict_get_try_str(qdict, "op");

    if (op == NULL) {
        bool on = qsp_is_enabled();

        monitor_printf(mon, "sync-profile is %s\n", on ? "on" : "off");
        return;
    }
    if (!strcmp(op, "on")) {
        qsp_enable();
    } else if (!strcmp(op, "off")) {
        qsp_disable();
    } else if (!strcmp(op, "reset")) {
        qsp_reset();
    } else {
        Error *err = NULL;

        error_setg(&err, QERR_INVALID_PARAMETER, op);
        hmp_handle_error(mon, err);
    }
}

void hmp_exit_preconfig(Monitor *mon, const QDict *qdict)
{
    Error *err = NULL;

    qmp_x_exit_preconfig(&err);
    hmp_handle_error(mon, err);
}

void hmp_cpu(Monitor *mon, const QDict *qdict)
{
    int64_t cpu_index;

    /* XXX: drop the monitor_set_cpu() usage when all HMP commands that
            use it are converted to the QAPI */
    cpu_index = qdict_get_int(qdict, "index");
    if (monitor_set_cpu(mon, cpu_index) < 0) {
        monitor_printf(mon, "invalid CPU index\n");
    }
}

void hmp_cont(Monitor *mon, const QDict *qdict)
{
    Error *err = NULL;

    qmp_cont(&err);
    hmp_handle_error(mon, err);
}

void hmp_change(Monitor *mon, const QDict *qdict)
{
    const char *device = qdict_get_str(qdict, "device");
    const char *target = qdict_get_str(qdict, "target");
    const char *arg = qdict_get_try_str(qdict, "arg");
    const char *read_only = qdict_get_try_str(qdict, "read-only-mode");
    bool force = qdict_get_try_bool(qdict, "force", false);
    Error *err = NULL;

#ifdef CONFIG_VNC
    if (strcmp(device, "vnc") == 0) {
        hmp_change_vnc(mon, device, target, arg, read_only, force, &err);
    } else
#endif
    {
        hmp_change_medium(mon, device, target, arg, read_only, force, &err);
    }

    hmp_handle_error(mon, err);
}

void hmp_getfd(Monitor *mon, const QDict *qdict)
{
    const char *fdname = qdict_get_str(qdict, "fdname");
    Error *err = NULL;

    qmp_getfd(fdname, &err);
    hmp_handle_error(mon, err);
}

void hmp_closefd(Monitor *mon, const QDict *qdict)
{
    const char *fdname = qdict_get_str(qdict, "fdname");
    Error *err = NULL;

    qmp_closefd(fdname, &err);
    hmp_handle_error(mon, err);
}

void hmp_info_iothreads(Monitor *mon, const QDict *qdict)
{
    IOThreadInfoList *info_list = qmp_query_iothreads(NULL);
    IOThreadInfoList *info;
    IOThreadInfo *value;

    for (info = info_list; info; info = info->next) {
        value = info->value;
        monitor_printf(mon, "%s:\n", value->id);
        monitor_printf(mon, "  thread_id=%" PRId64 "\n", value->thread_id);
        monitor_printf(mon, "  poll-max-ns=%" PRId64 "\n", value->poll_max_ns);
        monitor_printf(mon, "  poll-grow=%" PRId64 "\n", value->poll_grow);
        monitor_printf(mon, "  poll-shrink=%" PRId64 "\n", value->poll_shrink);
        monitor_printf(mon, "  aio-max-batch=%" PRId64 "\n",
                       value->aio_max_batch);
    }

    qapi_free_IOThreadInfoList(info_list);
}