0f9668e0c1
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Message-Id: <20220323155743.1585078-33-marcandre.lureau@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
429 lines
11 KiB
C
429 lines
11 KiB
C
/*
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* QEMU Management Protocol commands
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*
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* Copyright IBM, Corp. 2011
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*
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* Authors:
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* Anthony Liguori <aliguori@us.ibm.com>
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*
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* This work is licensed under the terms of the GNU GPL, version 2. See
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* the COPYING file in the top-level directory.
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*
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* Contributions after 2012-01-13 are licensed under the terms of the
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* GNU GPL, version 2 or (at your option) any later version.
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*/
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#include "qemu/osdep.h"
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#include "qemu/cutils.h"
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#include "qemu/option.h"
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#include "monitor/monitor.h"
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#include "sysemu/sysemu.h"
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#include "qemu/config-file.h"
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#include "qemu/uuid.h"
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#include "chardev/char.h"
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#include "ui/qemu-spice.h"
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#include "ui/console.h"
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#include "ui/dbus-display.h"
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#include "sysemu/kvm.h"
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#include "sysemu/runstate.h"
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#include "sysemu/runstate-action.h"
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#include "sysemu/blockdev.h"
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#include "sysemu/block-backend.h"
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#include "qapi/error.h"
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#include "qapi/qapi-commands-acpi.h"
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#include "qapi/qapi-commands-block.h"
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#include "qapi/qapi-commands-control.h"
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#include "qapi/qapi-commands-machine.h"
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#include "qapi/qapi-commands-misc.h"
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#include "qapi/qapi-commands-ui.h"
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#include "qapi/type-helpers.h"
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#include "qapi/qmp/qerror.h"
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#include "exec/ramlist.h"
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#include "hw/mem/memory-device.h"
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#include "hw/acpi/acpi_dev_interface.h"
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#include "hw/intc/intc.h"
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#include "hw/rdma/rdma.h"
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NameInfo *qmp_query_name(Error **errp)
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{
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NameInfo *info = g_malloc0(sizeof(*info));
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if (qemu_name) {
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info->has_name = true;
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info->name = g_strdup(qemu_name);
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}
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return info;
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}
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KvmInfo *qmp_query_kvm(Error **errp)
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{
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KvmInfo *info = g_malloc0(sizeof(*info));
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info->enabled = kvm_enabled();
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info->present = accel_find("kvm");
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return info;
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}
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UuidInfo *qmp_query_uuid(Error **errp)
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{
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UuidInfo *info = g_malloc0(sizeof(*info));
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info->UUID = qemu_uuid_unparse_strdup(&qemu_uuid);
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return info;
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}
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void qmp_quit(Error **errp)
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{
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shutdown_action = SHUTDOWN_ACTION_POWEROFF;
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qemu_system_shutdown_request(SHUTDOWN_CAUSE_HOST_QMP_QUIT);
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}
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void qmp_stop(Error **errp)
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{
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/* if there is a dump in background, we should wait until the dump
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* finished */
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if (qemu_system_dump_in_progress()) {
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error_setg(errp, "There is a dump in process, please wait.");
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return;
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}
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if (runstate_check(RUN_STATE_INMIGRATE)) {
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autostart = 0;
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} else {
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vm_stop(RUN_STATE_PAUSED);
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}
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}
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void qmp_system_reset(Error **errp)
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{
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qemu_system_reset_request(SHUTDOWN_CAUSE_HOST_QMP_SYSTEM_RESET);
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}
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void qmp_system_powerdown(Error **errp)
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{
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qemu_system_powerdown_request();
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}
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void qmp_cont(Error **errp)
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{
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BlockBackend *blk;
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BlockJob *job;
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Error *local_err = NULL;
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/* if there is a dump in background, we should wait until the dump
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* finished */
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if (qemu_system_dump_in_progress()) {
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error_setg(errp, "There is a dump in process, please wait.");
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return;
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}
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if (runstate_needs_reset()) {
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error_setg(errp, "Resetting the Virtual Machine is required");
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return;
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} else if (runstate_check(RUN_STATE_SUSPENDED)) {
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return;
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} else if (runstate_check(RUN_STATE_FINISH_MIGRATE)) {
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error_setg(errp, "Migration is not finalized yet");
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return;
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}
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for (blk = blk_next(NULL); blk; blk = blk_next(blk)) {
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blk_iostatus_reset(blk);
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}
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for (job = block_job_next(NULL); job; job = block_job_next(job)) {
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block_job_iostatus_reset(job);
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}
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/* Continuing after completed migration. Images have been inactivated to
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* allow the destination to take control. Need to get control back now.
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*
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* If there are no inactive block nodes (e.g. because the VM was just
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* paused rather than completing a migration), bdrv_inactivate_all() simply
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* doesn't do anything. */
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bdrv_activate_all(&local_err);
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if (local_err) {
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error_propagate(errp, local_err);
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return;
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}
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if (runstate_check(RUN_STATE_INMIGRATE)) {
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autostart = 1;
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} else {
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vm_start();
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}
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}
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void qmp_system_wakeup(Error **errp)
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{
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if (!qemu_wakeup_suspend_enabled()) {
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error_setg(errp,
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"wake-up from suspend is not supported by this guest");
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return;
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}
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qemu_system_wakeup_request(QEMU_WAKEUP_REASON_OTHER, errp);
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}
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void qmp_set_password(SetPasswordOptions *opts, Error **errp)
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{
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int rc;
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if (opts->protocol == DISPLAY_PROTOCOL_SPICE) {
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if (!qemu_using_spice(errp)) {
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return;
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}
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rc = qemu_spice.set_passwd(opts->password,
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opts->connected == SET_PASSWORD_ACTION_FAIL,
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opts->connected == SET_PASSWORD_ACTION_DISCONNECT);
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} else {
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assert(opts->protocol == DISPLAY_PROTOCOL_VNC);
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if (opts->connected != SET_PASSWORD_ACTION_KEEP) {
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/* vnc supports "connected=keep" only */
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error_setg(errp, QERR_INVALID_PARAMETER, "connected");
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return;
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}
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/* Note that setting an empty password will not disable login through
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* this interface. */
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rc = vnc_display_password(opts->u.vnc.display, opts->password);
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}
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if (rc != 0) {
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error_setg(errp, "Could not set password");
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}
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}
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void qmp_expire_password(ExpirePasswordOptions *opts, Error **errp)
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{
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time_t when;
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int rc;
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const char *whenstr = opts->time;
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if (strcmp(whenstr, "now") == 0) {
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when = 0;
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} else if (strcmp(whenstr, "never") == 0) {
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when = TIME_MAX;
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} else if (whenstr[0] == '+') {
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when = time(NULL) + strtoull(whenstr+1, NULL, 10);
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} else {
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when = strtoull(whenstr, NULL, 10);
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}
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if (opts->protocol == DISPLAY_PROTOCOL_SPICE) {
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if (!qemu_using_spice(errp)) {
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return;
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}
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rc = qemu_spice.set_pw_expire(when);
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} else {
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assert(opts->protocol == DISPLAY_PROTOCOL_VNC);
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rc = vnc_display_pw_expire(opts->u.vnc.display, when);
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}
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if (rc != 0) {
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error_setg(errp, "Could not set password expire time");
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}
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}
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#ifdef CONFIG_VNC
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void qmp_change_vnc_password(const char *password, Error **errp)
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{
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if (vnc_display_password(NULL, password) < 0) {
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error_setg(errp, "Could not set password");
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}
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}
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#endif
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void qmp_add_client(const char *protocol, const char *fdname,
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bool has_skipauth, bool skipauth, bool has_tls, bool tls,
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Error **errp)
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{
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Chardev *s;
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int fd;
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fd = monitor_get_fd(monitor_cur(), fdname, errp);
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if (fd < 0) {
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return;
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}
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if (strcmp(protocol, "spice") == 0) {
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if (!qemu_using_spice(errp)) {
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close(fd);
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return;
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}
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skipauth = has_skipauth ? skipauth : false;
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tls = has_tls ? tls : false;
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if (qemu_spice.display_add_client(fd, skipauth, tls) < 0) {
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error_setg(errp, "spice failed to add client");
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close(fd);
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}
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return;
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#ifdef CONFIG_VNC
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} else if (strcmp(protocol, "vnc") == 0) {
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skipauth = has_skipauth ? skipauth : false;
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vnc_display_add_client(NULL, fd, skipauth);
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return;
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#endif
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#ifdef CONFIG_DBUS_DISPLAY
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} else if (strcmp(protocol, "@dbus-display") == 0) {
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if (!qemu_using_dbus_display(errp)) {
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close(fd);
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return;
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}
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if (!qemu_dbus_display.add_client(fd, errp)) {
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close(fd);
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return;
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}
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return;
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#endif
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} else if ((s = qemu_chr_find(protocol)) != NULL) {
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if (qemu_chr_add_client(s, fd) < 0) {
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error_setg(errp, "failed to add client");
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close(fd);
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return;
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}
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return;
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}
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error_setg(errp, "protocol '%s' is invalid", protocol);
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close(fd);
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}
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MemoryDeviceInfoList *qmp_query_memory_devices(Error **errp)
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{
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return qmp_memory_device_list();
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}
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ACPIOSTInfoList *qmp_query_acpi_ospm_status(Error **errp)
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{
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bool ambig;
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ACPIOSTInfoList *head = NULL;
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ACPIOSTInfoList **prev = &head;
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Object *obj = object_resolve_path_type("", TYPE_ACPI_DEVICE_IF, &ambig);
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if (obj) {
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AcpiDeviceIfClass *adevc = ACPI_DEVICE_IF_GET_CLASS(obj);
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AcpiDeviceIf *adev = ACPI_DEVICE_IF(obj);
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adevc->ospm_status(adev, &prev);
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} else {
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error_setg(errp, "command is not supported, missing ACPI device");
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}
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return head;
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}
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MemoryInfo *qmp_query_memory_size_summary(Error **errp)
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{
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MemoryInfo *mem_info = g_new0(MemoryInfo, 1);
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MachineState *ms = MACHINE(qdev_get_machine());
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mem_info->base_memory = ms->ram_size;
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mem_info->plugged_memory = get_plugged_memory_size();
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mem_info->has_plugged_memory =
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mem_info->plugged_memory != (uint64_t)-1;
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return mem_info;
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}
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void qmp_display_reload(DisplayReloadOptions *arg, Error **errp)
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{
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switch (arg->type) {
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case DISPLAY_RELOAD_TYPE_VNC:
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#ifdef CONFIG_VNC
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if (arg->u.vnc.has_tls_certs && arg->u.vnc.tls_certs) {
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vnc_display_reload_certs(NULL, errp);
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}
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#else
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error_setg(errp, "vnc is invalid, missing 'CONFIG_VNC'");
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#endif
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break;
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default:
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abort();
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}
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}
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static int qmp_x_query_rdma_foreach(Object *obj, void *opaque)
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{
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RdmaProvider *rdma;
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RdmaProviderClass *k;
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GString *buf = opaque;
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if (object_dynamic_cast(obj, INTERFACE_RDMA_PROVIDER)) {
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rdma = RDMA_PROVIDER(obj);
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k = RDMA_PROVIDER_GET_CLASS(obj);
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if (k->format_statistics) {
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k->format_statistics(rdma, buf);
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} else {
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g_string_append_printf(buf,
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"RDMA statistics not available for %s.\n",
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object_get_typename(obj));
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}
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}
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return 0;
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}
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HumanReadableText *qmp_x_query_rdma(Error **errp)
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{
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g_autoptr(GString) buf = g_string_new("");
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object_child_foreach_recursive(object_get_root(),
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qmp_x_query_rdma_foreach, buf);
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return human_readable_text_from_str(buf);
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}
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HumanReadableText *qmp_x_query_ramblock(Error **errp)
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{
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g_autoptr(GString) buf = ram_block_format();
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return human_readable_text_from_str(buf);
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}
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static int qmp_x_query_irq_foreach(Object *obj, void *opaque)
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{
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InterruptStatsProvider *intc;
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InterruptStatsProviderClass *k;
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GString *buf = opaque;
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if (object_dynamic_cast(obj, TYPE_INTERRUPT_STATS_PROVIDER)) {
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intc = INTERRUPT_STATS_PROVIDER(obj);
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k = INTERRUPT_STATS_PROVIDER_GET_CLASS(obj);
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uint64_t *irq_counts;
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unsigned int nb_irqs, i;
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if (k->get_statistics &&
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k->get_statistics(intc, &irq_counts, &nb_irqs)) {
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if (nb_irqs > 0) {
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g_string_append_printf(buf, "IRQ statistics for %s:\n",
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object_get_typename(obj));
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for (i = 0; i < nb_irqs; i++) {
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if (irq_counts[i] > 0) {
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g_string_append_printf(buf, "%2d: %" PRId64 "\n", i,
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irq_counts[i]);
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}
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}
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}
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} else {
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g_string_append_printf(buf,
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"IRQ statistics not available for %s.\n",
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object_get_typename(obj));
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}
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}
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return 0;
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}
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HumanReadableText *qmp_x_query_irq(Error **errp)
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{
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g_autoptr(GString) buf = g_string_new("");
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object_child_foreach_recursive(object_get_root(),
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qmp_x_query_irq_foreach, buf);
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return human_readable_text_from_str(buf);
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}
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