cur_mon really needs to be coroutine-local as soon as we move monitor command handlers to coroutines and let them yield. As a first step, just remove all direct accesses to cur_mon so that we can implement this in the getter function later. Signed-off-by: Kevin Wolf <kwolf@redhat.com> Message-Id: <20201005155855.256490-4-kwolf@redhat.com> Reviewed-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com> Signed-off-by: Markus Armbruster <armbru@redhat.com>
404 lines
10 KiB
C
404 lines
10 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-common.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/vnc.h"
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#include "sysemu/kvm.h"
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#include "sysemu/runstate.h"
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#include "sysemu/arch_init.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/qmp/qerror.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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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 = kvm_available();
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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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no_shutdown = 0;
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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 (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_x_exit_preconfig(Error **errp)
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{
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if (!runstate_check(RUN_STATE_PRECONFIG)) {
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error_setg(errp, "The command is permitted only in '%s' state",
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RunState_str(RUN_STATE_PRECONFIG));
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return;
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}
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qemu_exit_preconfig_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 (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_invalidate_cache_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(const char *protocol, const char *password,
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bool has_connected, const char *connected, Error **errp)
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{
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int disconnect_if_connected = 0;
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int fail_if_connected = 0;
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int rc;
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if (has_connected) {
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if (strcmp(connected, "fail") == 0) {
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fail_if_connected = 1;
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} else if (strcmp(connected, "disconnect") == 0) {
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disconnect_if_connected = 1;
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} else if (strcmp(connected, "keep") == 0) {
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/* nothing */
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} else {
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error_setg(errp, QERR_INVALID_PARAMETER, "connected");
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return;
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}
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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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return;
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}
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rc = qemu_spice_set_passwd(password, fail_if_connected,
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disconnect_if_connected);
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if (rc != 0) {
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error_setg(errp, QERR_SET_PASSWD_FAILED);
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}
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return;
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}
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if (strcmp(protocol, "vnc") == 0) {
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if (fail_if_connected || disconnect_if_connected) {
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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(NULL, password);
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if (rc < 0) {
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error_setg(errp, QERR_SET_PASSWD_FAILED);
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}
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return;
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}
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error_setg(errp, QERR_INVALID_PARAMETER, "protocol");
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}
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void qmp_expire_password(const char *protocol, const char *whenstr,
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Error **errp)
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{
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time_t when;
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int rc;
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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 (strcmp(protocol, "spice") == 0) {
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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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if (rc != 0) {
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error_setg(errp, QERR_SET_PASSWD_FAILED);
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}
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return;
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}
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if (strcmp(protocol, "vnc") == 0) {
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rc = vnc_display_pw_expire(NULL, when);
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if (rc != 0) {
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error_setg(errp, QERR_SET_PASSWD_FAILED);
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}
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return;
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}
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error_setg(errp, QERR_INVALID_PARAMETER, "protocol");
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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, QERR_SET_PASSWD_FAILED);
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}
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}
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static void qmp_change_vnc_listen(const char *target, Error **errp)
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{
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QemuOptsList *olist = qemu_find_opts("vnc");
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QemuOpts *opts;
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if (strstr(target, "id=")) {
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error_setg(errp, "id not supported");
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return;
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}
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opts = qemu_opts_find(olist, "default");
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if (opts) {
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qemu_opts_del(opts);
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}
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opts = vnc_parse(target, errp);
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if (!opts) {
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return;
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}
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vnc_display_open("default", errp);
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}
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static void qmp_change_vnc(const char *target, bool has_arg, const char *arg,
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Error **errp)
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{
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if (strcmp(target, "passwd") == 0 || strcmp(target, "password") == 0) {
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if (!has_arg) {
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error_setg(errp, QERR_MISSING_PARAMETER, "password");
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} else {
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qmp_change_vnc_password(arg, errp);
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}
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} else {
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qmp_change_vnc_listen(target, errp);
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}
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}
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#endif /* !CONFIG_VNC */
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void qmp_change(const char *device, const char *target,
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bool has_arg, const char *arg, Error **errp)
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{
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if (strcmp(device, "vnc") == 0) {
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#ifdef CONFIG_VNC
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qmp_change_vnc(target, has_arg, arg, errp);
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#else
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error_setg(errp, QERR_FEATURE_DISABLED, "vnc");
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#endif
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} else {
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qmp_blockdev_change_medium(true, device, false, NULL, target,
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has_arg, arg, false, 0, errp);
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}
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}
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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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} 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_malloc0(sizeof(MemoryInfo));
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mem_info->base_memory = 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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