| /* |
| * 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-common.h" |
| #include "qemu/cutils.h" |
| #include "qemu/option.h" |
| #include "monitor/monitor.h" |
| #include "sysemu/sysemu.h" |
| #include "qemu/config-file.h" |
| #include "qemu/uuid.h" |
| #include "chardev/char.h" |
| #include "ui/qemu-spice.h" |
| #include "ui/console.h" |
| #include "ui/dbus-display.h" |
| #include "sysemu/kvm.h" |
| #include "sysemu/runstate.h" |
| #include "sysemu/runstate-action.h" |
| #include "sysemu/blockdev.h" |
| #include "sysemu/block-backend.h" |
| #include "qapi/error.h" |
| #include "qapi/qapi-commands-acpi.h" |
| #include "qapi/qapi-commands-block.h" |
| #include "qapi/qapi-commands-control.h" |
| #include "qapi/qapi-commands-machine.h" |
| #include "qapi/qapi-commands-misc.h" |
| #include "qapi/qapi-commands-ui.h" |
| #include "qapi/type-helpers.h" |
| #include "qapi/qmp/qerror.h" |
| #include "exec/ramlist.h" |
| #include "hw/mem/memory-device.h" |
| #include "hw/acpi/acpi_dev_interface.h" |
| #include "hw/intc/intc.h" |
| #include "hw/rdma/rdma.h" |
| |
| NameInfo *qmp_query_name(Error **errp) |
| { |
| NameInfo *info = g_malloc0(sizeof(*info)); |
| |
| if (qemu_name) { |
| info->has_name = true; |
| info->name = g_strdup(qemu_name); |
| } |
| |
| return info; |
| } |
| |
| KvmInfo *qmp_query_kvm(Error **errp) |
| { |
| KvmInfo *info = g_malloc0(sizeof(*info)); |
| |
| info->enabled = kvm_enabled(); |
| info->present = accel_find("kvm"); |
| |
| return info; |
| } |
| |
| UuidInfo *qmp_query_uuid(Error **errp) |
| { |
| UuidInfo *info = g_malloc0(sizeof(*info)); |
| |
| info->UUID = qemu_uuid_unparse_strdup(&qemu_uuid); |
| 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 (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_system_reset(Error **errp) |
| { |
| qemu_system_reset_request(SHUTDOWN_CAUSE_HOST_QMP_SYSTEM_RESET); |
| } |
| |
| void qmp_system_powerdown(Error **errp) |
| { |
| qemu_system_powerdown_request(); |
| } |
| |
| 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 (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); |
| } |
| |
| for (job = block_job_next(NULL); job; job = block_job_next(job)) { |
| block_job_iostatus_reset(job); |
| } |
| |
| /* Continuing after completed migration. Images have been inactivated to |
| * allow the destination to take control. Need to get control back now. |
| * |
| * If there are no inactive block nodes (e.g. because the VM was just |
| * paused rather than completing a migration), bdrv_inactivate_all() simply |
| * doesn't do anything. */ |
| bdrv_invalidate_cache_all(&local_err); |
| if (local_err) { |
| error_propagate(errp, local_err); |
| return; |
| } |
| |
| if (runstate_check(RUN_STATE_INMIGRATE)) { |
| autostart = 1; |
| } else { |
| vm_start(); |
| } |
| } |
| |
| void qmp_system_wakeup(Error **errp) |
| { |
| if (!qemu_wakeup_suspend_enabled()) { |
| error_setg(errp, |
| "wake-up from suspend is not supported by this guest"); |
| return; |
| } |
| |
| qemu_system_wakeup_request(QEMU_WAKEUP_REASON_OTHER, errp); |
| } |
| |
| void qmp_set_password(const char *protocol, const char *password, |
| bool has_connected, const char *connected, Error **errp) |
| { |
| int disconnect_if_connected = 0; |
| int fail_if_connected = 0; |
| int rc; |
| |
| if (has_connected) { |
| if (strcmp(connected, "fail") == 0) { |
| fail_if_connected = 1; |
| } else if (strcmp(connected, "disconnect") == 0) { |
| disconnect_if_connected = 1; |
| } else if (strcmp(connected, "keep") == 0) { |
| /* nothing */ |
| } else { |
| error_setg(errp, QERR_INVALID_PARAMETER, "connected"); |
| return; |
| } |
| } |
| |
| if (strcmp(protocol, "spice") == 0) { |
| if (!qemu_using_spice(errp)) { |
| return; |
| } |
| rc = qemu_spice.set_passwd(password, fail_if_connected, |
| disconnect_if_connected); |
| } else if (strcmp(protocol, "vnc") == 0) { |
| if (fail_if_connected || disconnect_if_connected) { |
| /* vnc supports "connected=keep" only */ |
| error_setg(errp, QERR_INVALID_PARAMETER, "connected"); |
| return; |
| } |
| /* Note that setting an empty password will not disable login through |
| * this interface. */ |
| rc = vnc_display_password(NULL, password); |
| } else { |
| error_setg(errp, QERR_INVALID_PARAMETER_VALUE, "protocol", |
| "'vnc' or 'spice'"); |
| return; |
| } |
| |
| if (rc != 0) { |
| error_setg(errp, "Could not set password"); |
| } |
| } |
| |
| void qmp_expire_password(const char *protocol, const char *whenstr, |
| Error **errp) |
| { |
| time_t when; |
| int rc; |
| |
| if (strcmp(whenstr, "now") == 0) { |
| when = 0; |
| } else if (strcmp(whenstr, "never") == 0) { |
| when = TIME_MAX; |
| } else if (whenstr[0] == '+') { |
| when = time(NULL) + strtoull(whenstr+1, NULL, 10); |
| } else { |
| when = strtoull(whenstr, NULL, 10); |
| } |
| |
| if (strcmp(protocol, "spice") == 0) { |
| if (!qemu_using_spice(errp)) { |
| return; |
| } |
| rc = qemu_spice.set_pw_expire(when); |
| } else if (strcmp(protocol, "vnc") == 0) { |
| rc = vnc_display_pw_expire(NULL, when); |
| } else { |
| error_setg(errp, QERR_INVALID_PARAMETER_VALUE, "protocol", |
| "'vnc' or 'spice'"); |
| return; |
| } |
| |
| if (rc != 0) { |
| error_setg(errp, "Could not set password expire time"); |
| } |
| } |
| |
| #ifdef CONFIG_VNC |
| void qmp_change_vnc_password(const char *password, Error **errp) |
| { |
| if (vnc_display_password(NULL, password) < 0) { |
| error_setg(errp, "Could not set password"); |
| } |
| } |
| #endif |
| |
| void qmp_add_client(const char *protocol, const char *fdname, |
| bool has_skipauth, bool skipauth, bool has_tls, bool tls, |
| Error **errp) |
| { |
| Chardev *s; |
| int fd; |
| |
| fd = monitor_get_fd(monitor_cur(), fdname, errp); |
| if (fd < 0) { |
| return; |
| } |
| |
| if (strcmp(protocol, "spice") == 0) { |
| if (!qemu_using_spice(errp)) { |
| close(fd); |
| return; |
| } |
| skipauth = has_skipauth ? skipauth : false; |
| tls = has_tls ? tls : false; |
| if (qemu_spice.display_add_client(fd, skipauth, tls) < 0) { |
| error_setg(errp, "spice failed to add client"); |
| close(fd); |
| } |
| return; |
| #ifdef CONFIG_VNC |
| } else if (strcmp(protocol, "vnc") == 0) { |
| skipauth = has_skipauth ? skipauth : false; |
| vnc_display_add_client(NULL, fd, skipauth); |
| return; |
| #endif |
| #ifdef CONFIG_DBUS_DISPLAY |
| } else if (strcmp(protocol, "@dbus-display") == 0) { |
| if (!qemu_using_dbus_display(errp)) { |
| close(fd); |
| return; |
| } |
| if (!qemu_dbus_display.add_client(fd, errp)) { |
| close(fd); |
| return; |
| } |
| return; |
| #endif |
| } else if ((s = qemu_chr_find(protocol)) != NULL) { |
| if (qemu_chr_add_client(s, fd) < 0) { |
| error_setg(errp, "failed to add client"); |
| close(fd); |
| return; |
| } |
| return; |
| } |
| |
| error_setg(errp, "protocol '%s' is invalid", protocol); |
| close(fd); |
| } |
| |
| |
| MemoryDeviceInfoList *qmp_query_memory_devices(Error **errp) |
| { |
| return qmp_memory_device_list(); |
| } |
| |
| ACPIOSTInfoList *qmp_query_acpi_ospm_status(Error **errp) |
| { |
| bool ambig; |
| ACPIOSTInfoList *head = NULL; |
| ACPIOSTInfoList **prev = &head; |
| Object *obj = object_resolve_path_type("", TYPE_ACPI_DEVICE_IF, &ambig); |
| |
| if (obj) { |
| AcpiDeviceIfClass *adevc = ACPI_DEVICE_IF_GET_CLASS(obj); |
| AcpiDeviceIf *adev = ACPI_DEVICE_IF(obj); |
| |
| adevc->ospm_status(adev, &prev); |
| } else { |
| error_setg(errp, "command is not supported, missing ACPI device"); |
| } |
| |
| return head; |
| } |
| |
| MemoryInfo *qmp_query_memory_size_summary(Error **errp) |
| { |
| MemoryInfo *mem_info = g_malloc0(sizeof(MemoryInfo)); |
| MachineState *ms = MACHINE(qdev_get_machine()); |
| |
| mem_info->base_memory = ms->ram_size; |
| |
| mem_info->plugged_memory = get_plugged_memory_size(); |
| mem_info->has_plugged_memory = |
| mem_info->plugged_memory != (uint64_t)-1; |
| |
| return mem_info; |
| } |
| |
| void qmp_display_reload(DisplayReloadOptions *arg, Error **errp) |
| { |
| switch (arg->type) { |
| case DISPLAY_RELOAD_TYPE_VNC: |
| #ifdef CONFIG_VNC |
| if (arg->u.vnc.has_tls_certs && arg->u.vnc.tls_certs) { |
| vnc_display_reload_certs(NULL, errp); |
| } |
| #else |
| error_setg(errp, "vnc is invalid, missing 'CONFIG_VNC'"); |
| #endif |
| break; |
| default: |
| abort(); |
| } |
| } |
| |
| #ifdef CONFIG_PROFILER |
| |
| int64_t dev_time; |
| |
| HumanReadableText *qmp_x_query_profile(Error **errp) |
| { |
| g_autoptr(GString) buf = g_string_new(""); |
| static int64_t last_cpu_exec_time; |
| int64_t cpu_exec_time; |
| int64_t delta; |
| |
| cpu_exec_time = tcg_cpu_exec_time(); |
| delta = cpu_exec_time - last_cpu_exec_time; |
| |
| g_string_append_printf(buf, "async time %" PRId64 " (%0.3f)\n", |
| dev_time, dev_time / (double)NANOSECONDS_PER_SECOND); |
| g_string_append_printf(buf, "qemu time %" PRId64 " (%0.3f)\n", |
| delta, delta / (double)NANOSECONDS_PER_SECOND); |
| last_cpu_exec_time = cpu_exec_time; |
| dev_time = 0; |
| |
| return human_readable_text_from_str(buf); |
| } |
| #else |
| HumanReadableText *qmp_x_query_profile(Error **errp) |
| { |
| error_setg(errp, "Internal profiler not compiled"); |
| return NULL; |
| } |
| #endif |
| |
| static int qmp_x_query_rdma_foreach(Object *obj, void *opaque) |
| { |
| RdmaProvider *rdma; |
| RdmaProviderClass *k; |
| GString *buf = opaque; |
| |
| if (object_dynamic_cast(obj, INTERFACE_RDMA_PROVIDER)) { |
| rdma = RDMA_PROVIDER(obj); |
| k = RDMA_PROVIDER_GET_CLASS(obj); |
| if (k->format_statistics) { |
| k->format_statistics(rdma, buf); |
| } else { |
| g_string_append_printf(buf, |
| "RDMA statistics not available for %s.\n", |
| object_get_typename(obj)); |
| } |
| } |
| |
| return 0; |
| } |
| |
| HumanReadableText *qmp_x_query_rdma(Error **errp) |
| { |
| g_autoptr(GString) buf = g_string_new(""); |
| |
| object_child_foreach_recursive(object_get_root(), |
| qmp_x_query_rdma_foreach, buf); |
| |
| return human_readable_text_from_str(buf); |
| } |
| |
| HumanReadableText *qmp_x_query_ramblock(Error **errp) |
| { |
| g_autoptr(GString) buf = ram_block_format(); |
| |
| return human_readable_text_from_str(buf); |
| } |
| |
| static int qmp_x_query_irq_foreach(Object *obj, void *opaque) |
| { |
| InterruptStatsProvider *intc; |
| InterruptStatsProviderClass *k; |
| GString *buf = opaque; |
| |
| if (object_dynamic_cast(obj, TYPE_INTERRUPT_STATS_PROVIDER)) { |
| intc = INTERRUPT_STATS_PROVIDER(obj); |
| k = INTERRUPT_STATS_PROVIDER_GET_CLASS(obj); |
| uint64_t *irq_counts; |
| unsigned int nb_irqs, i; |
| if (k->get_statistics && |
| k->get_statistics(intc, &irq_counts, &nb_irqs)) { |
| if (nb_irqs > 0) { |
| g_string_append_printf(buf, "IRQ statistics for %s:\n", |
| object_get_typename(obj)); |
| for (i = 0; i < nb_irqs; i++) { |
| if (irq_counts[i] > 0) { |
| g_string_append_printf(buf, "%2d: %" PRId64 "\n", i, |
| irq_counts[i]); |
| } |
| } |
| } |
| } else { |
| g_string_append_printf(buf, |
| "IRQ statistics not available for %s.\n", |
| object_get_typename(obj)); |
| } |
| } |
| |
| return 0; |
| } |
| |
| HumanReadableText *qmp_x_query_irq(Error **errp) |
| { |
| g_autoptr(GString) buf = g_string_new(""); |
| |
| object_child_foreach_recursive(object_get_root(), |
| qmp_x_query_irq_foreach, buf); |
| |
| return human_readable_text_from_str(buf); |
| } |
