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/*
* QEMU Management Protocol 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 "qemu/sockets.h"
#include "monitor-internal.h"
#include "monitor/qdev.h"
#include "monitor/qmp-helpers.h"
#include "system/system.h"
#include "system/kvm.h"
#include "system/runstate.h"
#include "system/runstate-action.h"
#include "system/block-backend.h"
#include "qapi/error.h"
#include "qapi/qapi-init-commands.h"
#include "qapi/qapi-commands-control.h"
#include "qapi/qapi-commands-misc.h"
#include "qapi/qmp/qerror.h"
#include "qapi/type-helpers.h"
#include "hw/mem/memory-device.h"
#include "hw/intc/intc.h"
#include "migration/misc.h"
NameInfo *qmp_query_name(Error **errp)
{
NameInfo *info = g_malloc0(sizeof(*info));
info->name = g_strdup(qemu_name);
return info;
}
void qmp_quit(Error **errp)
{
shutdown_action = SHUTDOWN_ACTION_POWEROFF;
qemu_system_shutdown_request(SHUTDOWN_CAUSE_HOST_QMP_QUIT);
}
void qmp_stop(Error **errp)
{
/* if there is a dump in background, we should wait until the dump
* finished */
if (qemu_system_dump_in_progress()) {
error_setg(errp, "There is a dump in process, please wait.");
return;
}
if (runstate_check(RUN_STATE_INMIGRATE)) {
autostart = 0;
} else {
vm_stop(RUN_STATE_PAUSED);
}
}
void qmp_cont(Error **errp)
{
BlockBackend *blk;
BlockJob *job;
Error *local_err = NULL;
/* if there is a dump in background, we should wait until the dump
* finished */
if (qemu_system_dump_in_progress()) {
error_setg(errp, "There is a dump in process, please wait.");
return;
}
if (runstate_needs_reset()) {
error_setg(errp, "Resetting the Virtual Machine is required");
return;
} else if (runstate_check(RUN_STATE_SUSPENDED)) {
return;
} else if (runstate_check(RUN_STATE_FINISH_MIGRATE)) {
error_setg(errp, "Migration is not finalized yet");
return;
}
for (blk = blk_next(NULL); blk; blk = blk_next(blk)) {
blk_iostatus_reset(blk);
}
WITH_JOB_LOCK_GUARD() {
for (job = block_job_next_locked(NULL); job;
job = block_job_next_locked(job)) {
block_job_iostatus_reset_locked(job);
}
}
if (runstate_check(RUN_STATE_INMIGRATE)) {
autostart = 1;
} else {
/*
* Continuing after completed migration. Images have been
* inactivated to allow the destination to take control. Need to
* get control back now.
*/
if (!migration_block_activate(&local_err)) {
error_propagate(errp, local_err);
return;
}
vm_start();
}
}
void qmp_add_client(const char *protocol, const char *fdname,
bool has_skipauth, bool skipauth, bool has_tls, bool tls,
Error **errp)
{
static const struct {
const char *name;
bool (*add_client)(int fd, bool has_skipauth, bool skipauth,
bool has_tls, bool tls, Error **errp);
} protocol_table[] = {
{ "spice", qmp_add_client_spice },
#ifdef CONFIG_VNC
{ "vnc", qmp_add_client_vnc },
#endif
#ifdef CONFIG_DBUS_DISPLAY
{ "@dbus-display", qmp_add_client_dbus_display },
#endif
};
int fd, i;
fd = monitor_get_fd(monitor_cur(), fdname, errp);
if (fd < 0) {
return;
}
if (!fd_is_socket(fd)) {
error_setg(errp, "parameter @fdname must name a socket");
close(fd);
return;
}
for (i = 0; i < ARRAY_SIZE(protocol_table); i++) {
if (!strcmp(protocol, protocol_table[i].name)) {
if (!protocol_table[i].add_client(fd, has_skipauth, skipauth,
has_tls, tls, errp)) {
close(fd);
}
return;
}
}
if (!qmp_add_client_char(fd, has_skipauth, skipauth, has_tls, tls,
protocol, errp)) {
close(fd);
}
}
char *qmp_human_monitor_command(const char *command_line, bool has_cpu_index,
int64_t cpu_index, Error **errp)
{
char *output = NULL;
MonitorHMP hmp = {};
monitor_data_init(&hmp.common, false, true, false);
if (has_cpu_index) {
int ret = monitor_set_cpu(&hmp.common, cpu_index);
if (ret < 0) {
error_setg(errp, QERR_INVALID_PARAMETER_VALUE, "cpu-index",
"a CPU number");
goto out;
}
}
handle_hmp_command(&hmp, command_line);
WITH_QEMU_LOCK_GUARD(&hmp.common.mon_lock) {
output = g_strdup(hmp.common.outbuf->str);
}
out:
monitor_data_destroy(&hmp.common);
return output;
}
static void __attribute__((__constructor__)) monitor_init_qmp_commands(void)
{
/*
* Two command lists:
* - qmp_commands contains all QMP commands
* - qmp_cap_negotiation_commands contains just
* "qmp_capabilities", to enforce capability negotiation
*/
qmp_init_marshal(&qmp_commands);
qmp_register_command(&qmp_commands, "device_add",
qmp_device_add, 0, 0);
QTAILQ_INIT(&qmp_cap_negotiation_commands);
qmp_register_command(&qmp_cap_negotiation_commands, "qmp_capabilities",
qmp_marshal_qmp_capabilities,
QCO_ALLOW_PRECONFIG, 0);
}
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