qemu/monitor/hmp-cmds.c

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/*
* 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 "exec/address-spaces.h"
#include "exec/gdbstub.h"
#include "exec/ioport.h"
#include "monitor/hmp.h"
#include "qemu/help_option.h"
#include "monitor/monitor-internal.h"
#include "qapi/error.h"
#include "qapi/qapi-commands-control.h"
#include "qapi/qapi-commands-misc.h"
#include "qapi/qmp/qdict.h"
#include "qemu/cutils.h"
#include "hw/intc/intc.h"
#include "qemu/log.h"
#include "sysemu/sysemu.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, "invalid parameter '%s',"
" expecting 'on', 'off', or 'reset'", 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;
qapi: add conditions to VNC type/commands/events on the schema Add #if defined(CONFIG_VNC) in generated code, and adjust the qmp/hmp code accordingly. query-qmp-schema no longer reports the command/events etc as available when disabled at compile. Commands made conditional: * query-vnc, query-vnc-servers, change-vnc-password Before the patch, the commands for !CONFIG_VNC are stubs that fail like this: {"error": {"class": "GenericError", "desc": "The feature 'vnc' is not enabled"}} Afterwards, they fail like this: {"error": {"class": "CommandNotFound", "desc": "The command FOO has not been found"}} I call that an improvement, because it lets clients distinguish between command unavailable (class CommandNotFound) and command failed (class GenericError). Events made conditional: * VNC_CONNECTED, VNC_INITIALIZED, VNC_DISCONNECTED HMP change: * info vnc Will return "unknown command: 'info vnc'" when VNC is compiled out (same as error for spice when --disable-spice) Occurrences of VNC (case insensitive) in the schema that aren't covered by this change: * add_client Command has other uses, including "socket bases character devices". These are unconditional as far as I can tell. * set_password, expire_password In theory, these commands could be used for managing any service's password. In practice, they're used for VNC and SPICE services. They're documented for "remote display session" / "remote display server". The service is selected by argument @protocol. The code special-cases protocol-specific argument checking, then calls a protocol-specific function to do the work. If it fails, the command fails with "Could not set password". It does when the service isn't compiled in (it's a stub then). We could make these commands conditional on the conjunction of all services [currently: defined(CONFIG_VNC) || defined(CONFIG_SPICE)], but I doubt it's worthwhile. * change Command has other uses, namely changing media. This patch inlines a stub; no functional change. Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Reviewed-by: Gerd Hoffmann <kraxel@redhat.com> Reviewed-by: Markus Armbruster <armbru@redhat.com> Message-Id: <20180703155648.11933-14-marcandre.lureau@redhat.com> Signed-off-by: Markus Armbruster <armbru@redhat.com>
2018-07-03 23:56:47 +08:00
#ifdef CONFIG_VNC
if (strcmp(device, "vnc") == 0) {
hmp_change_vnc(mon, device, target, arg, read_only, force, &err);
qapi: add conditions to VNC type/commands/events on the schema Add #if defined(CONFIG_VNC) in generated code, and adjust the qmp/hmp code accordingly. query-qmp-schema no longer reports the command/events etc as available when disabled at compile. Commands made conditional: * query-vnc, query-vnc-servers, change-vnc-password Before the patch, the commands for !CONFIG_VNC are stubs that fail like this: {"error": {"class": "GenericError", "desc": "The feature 'vnc' is not enabled"}} Afterwards, they fail like this: {"error": {"class": "CommandNotFound", "desc": "The command FOO has not been found"}} I call that an improvement, because it lets clients distinguish between command unavailable (class CommandNotFound) and command failed (class GenericError). Events made conditional: * VNC_CONNECTED, VNC_INITIALIZED, VNC_DISCONNECTED HMP change: * info vnc Will return "unknown command: 'info vnc'" when VNC is compiled out (same as error for spice when --disable-spice) Occurrences of VNC (case insensitive) in the schema that aren't covered by this change: * add_client Command has other uses, including "socket bases character devices". These are unconditional as far as I can tell. * set_password, expire_password In theory, these commands could be used for managing any service's password. In practice, they're used for VNC and SPICE services. They're documented for "remote display session" / "remote display server". The service is selected by argument @protocol. The code special-cases protocol-specific argument checking, then calls a protocol-specific function to do the work. If it fails, the command fails with "Could not set password". It does when the service isn't compiled in (it's a stub then). We could make these commands conditional on the conjunction of all services [currently: defined(CONFIG_VNC) || defined(CONFIG_SPICE)], but I doubt it's worthwhile. * change Command has other uses, namely changing media. This patch inlines a stub; no functional change. Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Reviewed-by: Gerd Hoffmann <kraxel@redhat.com> Reviewed-by: Markus Armbruster <armbru@redhat.com> Message-Id: <20180703155648.11933-14-marcandre.lureau@redhat.com> Signed-off-by: Markus Armbruster <armbru@redhat.com>
2018-07-03 23:56:47 +08:00
} else
#endif
{
hmp_change_medium(mon, device, target, arg, read_only, force, &err);
}
hmp_handle_error(mon, err);
}
#ifdef CONFIG_POSIX
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);
}
#endif
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);
}
void hmp_help(Monitor *mon, const QDict *qdict)
{
hmp_help_cmd(mon, qdict_get_try_str(qdict, "name"));
}
void hmp_info_help(Monitor *mon, const QDict *qdict)
{
hmp_help_cmd(mon, "info");
}
void hmp_info_sync_profile(Monitor *mon, const QDict *qdict)
{
int64_t max = qdict_get_try_int(qdict, "max", 10);
bool mean = qdict_get_try_bool(qdict, "mean", false);
bool coalesce = !qdict_get_try_bool(qdict, "no_coalesce", false);
enum QSPSortBy sort_by;
sort_by = mean ? QSP_SORT_BY_AVG_WAIT_TIME : QSP_SORT_BY_TOTAL_WAIT_TIME;
qsp_report(max, sort_by, coalesce);
}
void hmp_info_history(Monitor *mon, const QDict *qdict)
{
MonitorHMP *hmp_mon = container_of(mon, MonitorHMP, common);
int i;
const char *str;
if (!hmp_mon->rs) {
return;
}
i = 0;
for(;;) {
str = readline_get_history(hmp_mon->rs, i);
if (!str) {
break;
}
monitor_printf(mon, "%d: '%s'\n", i, str);
i++;
}
}
void hmp_logfile(Monitor *mon, const QDict *qdict)
{
Error *err = NULL;
if (!qemu_set_log_filename(qdict_get_str(qdict, "filename"), &err)) {
error_report_err(err);
}
}
void hmp_log(Monitor *mon, const QDict *qdict)
{
int mask;
const char *items = qdict_get_str(qdict, "items");
Error *err = NULL;
if (!strcmp(items, "none")) {
mask = 0;
} else {
mask = qemu_str_to_log_mask(items);
if (!mask) {
hmp_help_cmd(mon, "log");
return;
}
}
if (!qemu_set_log(mask, &err)) {
error_report_err(err);
}
}
void hmp_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);
}
}
void hmp_print(Monitor *mon, const QDict *qdict)
{
int format = qdict_get_int(qdict, "format");
hwaddr val = qdict_get_int(qdict, "val");
switch(format) {
case 'o':
monitor_printf(mon, "%#" HWADDR_PRIo, val);
break;
case 'x':
monitor_printf(mon, "%#" HWADDR_PRIx, val);
break;
case 'u':
monitor_printf(mon, "%" HWADDR_PRIu, val);
break;
default:
case 'd':
monitor_printf(mon, "%" HWADDR_PRId, val);
break;
case 'c':
monitor_printc(mon, val);
break;
}
monitor_printf(mon, "\n");
}
void hmp_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 = address_space_ldub(&address_space_memory, addr,
MEMTXATTRS_UNSPECIFIED, NULL);
/* BSD sum algorithm ('sum' Unix command) */
sum = (sum >> 1) | (sum << 15);
sum += val;
}
monitor_printf(mon, "%05d\n", sum);
}
void hmp_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] = 0x%0*x\n",
suffix, addr, size * 2, val);
}
void hmp_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;
}
}
void hmp_boot_set(Monitor *mon, const QDict *qdict)
{
Error *local_err = NULL;
const char *bootdevice = qdict_get_str(qdict, "bootdevice");
qemu_boot_set(bootdevice, &local_err);
if (local_err) {
error_report_err(local_err);
} else {
monitor_printf(mon, "boot device list now set to %s\n", bootdevice);
}
}
void hmp_info_mtree(Monitor *mon, const QDict *qdict)
{
bool flatview = qdict_get_try_bool(qdict, "flatview", false);
bool dispatch_tree = qdict_get_try_bool(qdict, "dispatch_tree", false);
bool owner = qdict_get_try_bool(qdict, "owner", false);
bool disabled = qdict_get_try_bool(qdict, "disabled", false);
mtree_info(flatview, dispatch_tree, owner, disabled);
}