This command is only used to test OOB functionality. It should not be used for any other purposes. Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com> Reviewed-by: Fam Zheng <famz@redhat.com> Signed-off-by: Peter Xu <peterx@redhat.com> Message-Id: <20180309090006.10018-22-peterx@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> [eblake: grammar tweak] Signed-off-by: Eric Blake <eblake@redhat.com>
789 lines
21 KiB
C
789 lines
21 KiB
C
/*
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* QEMU Management Protocol
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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-version.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/arch_init.h"
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#include "hw/qdev.h"
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#include "sysemu/blockdev.h"
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#include "sysemu/block-backend.h"
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#include "qom/qom-qobject.h"
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#include "qapi/error.h"
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#include "qapi/qapi-commands-block-core.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/qdict.h"
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#include "qapi/qmp/qerror.h"
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#include "qapi/qobject-input-visitor.h"
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#include "hw/boards.h"
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#include "qom/object_interfaces.h"
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#include "hw/mem/pc-dimm.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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VersionInfo *qmp_query_version(Error **errp)
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{
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VersionInfo *info = g_new0(VersionInfo, 1);
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info->qemu = g_new0(VersionTriple, 1);
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info->qemu->major = QEMU_VERSION_MAJOR;
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info->qemu->minor = QEMU_VERSION_MINOR;
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info->qemu->micro = QEMU_VERSION_MICRO;
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info->package = g_strdup(QEMU_PKGVERSION);
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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);
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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);
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}
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void qmp_system_powerdown(Error **erp)
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{
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qemu_system_powerdown_request();
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}
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void qmp_cpu_add(int64_t id, Error **errp)
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{
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MachineClass *mc;
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mc = MACHINE_GET_CLASS(current_machine);
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if (mc->hot_add_cpu) {
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mc->hot_add_cpu(id, errp);
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} else {
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error_setg(errp, "Not supported");
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}
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}
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#ifndef CONFIG_VNC
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/* If VNC support is enabled, the "true" query-vnc command is
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defined in the VNC subsystem */
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VncInfo *qmp_query_vnc(Error **errp)
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{
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error_setg(errp, QERR_FEATURE_DISABLED, "vnc");
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return NULL;
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};
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VncInfo2List *qmp_query_vnc_servers(Error **errp)
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{
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error_setg(errp, QERR_FEATURE_DISABLED, "vnc");
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return NULL;
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};
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#endif
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#ifndef CONFIG_SPICE
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/*
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* qmp_unregister_commands_hack() ensures that QMP command query-spice
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* exists only #ifdef CONFIG_SPICE. Necessary for an accurate
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* query-commands result. However, the QAPI schema is blissfully
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* unaware of that, and the QAPI code generator happily generates a
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* dead qmp_marshal_query_spice() that calls qmp_query_spice().
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* Provide it one, or else linking fails. FIXME Educate the QAPI
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* schema on CONFIG_SPICE.
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*/
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SpiceInfo *qmp_query_spice(Error **errp)
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{
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abort();
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};
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#endif
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void qmp_cont(Error **errp)
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{
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BlockBackend *blk;
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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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}
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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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/* 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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qemu_system_wakeup_request(QEMU_WAKEUP_REASON_OTHER);
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}
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ObjectPropertyInfoList *qmp_qom_list(const char *path, Error **errp)
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{
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Object *obj;
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bool ambiguous = false;
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ObjectPropertyInfoList *props = NULL;
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ObjectProperty *prop;
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ObjectPropertyIterator iter;
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obj = object_resolve_path(path, &ambiguous);
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if (obj == NULL) {
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if (ambiguous) {
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error_setg(errp, "Path '%s' is ambiguous", path);
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} else {
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error_set(errp, ERROR_CLASS_DEVICE_NOT_FOUND,
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"Device '%s' not found", path);
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}
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return NULL;
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}
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object_property_iter_init(&iter, obj);
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while ((prop = object_property_iter_next(&iter))) {
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ObjectPropertyInfoList *entry = g_malloc0(sizeof(*entry));
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entry->value = g_malloc0(sizeof(ObjectPropertyInfo));
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entry->next = props;
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props = entry;
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entry->value->name = g_strdup(prop->name);
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entry->value->type = g_strdup(prop->type);
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}
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return props;
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}
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void qmp_qom_set(const char *path, const char *property, QObject *value,
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Error **errp)
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{
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Object *obj;
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obj = object_resolve_path(path, NULL);
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if (!obj) {
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error_set(errp, ERROR_CLASS_DEVICE_NOT_FOUND,
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"Device '%s' not found", path);
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return;
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}
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object_property_set_qobject(obj, value, property, errp);
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}
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QObject *qmp_qom_get(const char *path, const char *property, Error **errp)
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{
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Object *obj;
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obj = object_resolve_path(path, NULL);
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if (!obj) {
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error_set(errp, ERROR_CLASS_DEVICE_NOT_FOUND,
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"Device '%s' not found", path);
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return NULL;
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}
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return object_property_get_qobject(obj, property, 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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#else
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void qmp_change_vnc_password(const char *password, Error **errp)
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{
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error_setg(errp, QERR_FEATURE_DISABLED, "vnc");
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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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error_setg(errp, QERR_FEATURE_DISABLED, "vnc");
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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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qmp_change_vnc(target, has_arg, arg, errp);
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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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static void qom_list_types_tramp(ObjectClass *klass, void *data)
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{
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ObjectTypeInfoList *e, **pret = data;
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ObjectTypeInfo *info;
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ObjectClass *parent = object_class_get_parent(klass);
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info = g_malloc0(sizeof(*info));
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info->name = g_strdup(object_class_get_name(klass));
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info->has_abstract = info->abstract = object_class_is_abstract(klass);
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if (parent) {
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info->has_parent = true;
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info->parent = g_strdup(object_class_get_name(parent));
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}
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e = g_malloc0(sizeof(*e));
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e->value = info;
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e->next = *pret;
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*pret = e;
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}
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ObjectTypeInfoList *qmp_qom_list_types(bool has_implements,
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const char *implements,
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bool has_abstract,
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bool abstract,
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Error **errp)
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{
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ObjectTypeInfoList *ret = NULL;
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object_class_foreach(qom_list_types_tramp, implements, abstract, &ret);
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return ret;
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}
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/* Return a DevicePropertyInfo for a qdev property.
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*
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* If a qdev property with the given name does not exist, use the given default
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* type. If the qdev property info should not be shown, return NULL.
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*
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* The caller must free the return value.
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*/
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static ObjectPropertyInfo *make_device_property_info(ObjectClass *klass,
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const char *name,
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const char *default_type,
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const char *description)
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{
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ObjectPropertyInfo *info;
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Property *prop;
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do {
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for (prop = DEVICE_CLASS(klass)->props; prop && prop->name; prop++) {
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if (strcmp(name, prop->name) != 0) {
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continue;
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}
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|
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/*
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* TODO Properties without a parser are just for dirty hacks.
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* qdev_prop_ptr is the only such PropertyInfo. It's marked
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* for removal. This conditional should be removed along with
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* it.
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*/
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if (!prop->info->set && !prop->info->create) {
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return NULL; /* no way to set it, don't show */
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}
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info = g_malloc0(sizeof(*info));
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info->name = g_strdup(prop->name);
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info->type = default_type ? g_strdup(default_type)
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: g_strdup(prop->info->name);
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info->has_description = !!prop->info->description;
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info->description = g_strdup(prop->info->description);
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return info;
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}
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klass = object_class_get_parent(klass);
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} while (klass != object_class_by_name(TYPE_DEVICE));
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|
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/* Not a qdev property, use the default type */
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info = g_malloc0(sizeof(*info));
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info->name = g_strdup(name);
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info->type = g_strdup(default_type);
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info->has_description = !!description;
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info->description = g_strdup(description);
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return info;
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}
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|
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ObjectPropertyInfoList *qmp_device_list_properties(const char *typename,
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Error **errp)
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{
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ObjectClass *klass;
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Object *obj;
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ObjectProperty *prop;
|
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ObjectPropertyIterator iter;
|
|
ObjectPropertyInfoList *prop_list = NULL;
|
|
|
|
klass = object_class_by_name(typename);
|
|
if (klass == NULL) {
|
|
error_set(errp, ERROR_CLASS_DEVICE_NOT_FOUND,
|
|
"Device '%s' not found", typename);
|
|
return NULL;
|
|
}
|
|
|
|
klass = object_class_dynamic_cast(klass, TYPE_DEVICE);
|
|
if (klass == NULL) {
|
|
error_setg(errp, QERR_INVALID_PARAMETER_VALUE, "typename", TYPE_DEVICE);
|
|
return NULL;
|
|
}
|
|
|
|
if (object_class_is_abstract(klass)) {
|
|
error_setg(errp, QERR_INVALID_PARAMETER_VALUE, "typename",
|
|
"non-abstract device type");
|
|
return NULL;
|
|
}
|
|
|
|
obj = object_new(typename);
|
|
|
|
object_property_iter_init(&iter, obj);
|
|
while ((prop = object_property_iter_next(&iter))) {
|
|
ObjectPropertyInfo *info;
|
|
ObjectPropertyInfoList *entry;
|
|
|
|
/* Skip Object and DeviceState properties */
|
|
if (strcmp(prop->name, "type") == 0 ||
|
|
strcmp(prop->name, "realized") == 0 ||
|
|
strcmp(prop->name, "hotpluggable") == 0 ||
|
|
strcmp(prop->name, "hotplugged") == 0 ||
|
|
strcmp(prop->name, "parent_bus") == 0) {
|
|
continue;
|
|
}
|
|
|
|
/* Skip legacy properties since they are just string versions of
|
|
* properties that we already list.
|
|
*/
|
|
if (strstart(prop->name, "legacy-", NULL)) {
|
|
continue;
|
|
}
|
|
|
|
info = make_device_property_info(klass, prop->name, prop->type,
|
|
prop->description);
|
|
if (!info) {
|
|
continue;
|
|
}
|
|
|
|
entry = g_malloc0(sizeof(*entry));
|
|
entry->value = info;
|
|
entry->next = prop_list;
|
|
prop_list = entry;
|
|
}
|
|
|
|
object_unref(obj);
|
|
|
|
return prop_list;
|
|
}
|
|
|
|
ObjectPropertyInfoList *qmp_qom_list_properties(const char *typename,
|
|
Error **errp)
|
|
{
|
|
ObjectClass *klass;
|
|
Object *obj = NULL;
|
|
ObjectProperty *prop;
|
|
ObjectPropertyIterator iter;
|
|
ObjectPropertyInfoList *prop_list = NULL;
|
|
|
|
klass = object_class_by_name(typename);
|
|
if (klass == NULL) {
|
|
error_set(errp, ERROR_CLASS_DEVICE_NOT_FOUND,
|
|
"Class '%s' not found", typename);
|
|
return NULL;
|
|
}
|
|
|
|
klass = object_class_dynamic_cast(klass, TYPE_OBJECT);
|
|
if (klass == NULL) {
|
|
error_setg(errp, QERR_INVALID_PARAMETER_VALUE, "typename", TYPE_OBJECT);
|
|
return NULL;
|
|
}
|
|
|
|
if (object_class_is_abstract(klass)) {
|
|
object_class_property_iter_init(&iter, klass);
|
|
} else {
|
|
obj = object_new(typename);
|
|
object_property_iter_init(&iter, obj);
|
|
}
|
|
while ((prop = object_property_iter_next(&iter))) {
|
|
ObjectPropertyInfo *info;
|
|
ObjectPropertyInfoList *entry;
|
|
|
|
info = g_malloc0(sizeof(*info));
|
|
info->name = g_strdup(prop->name);
|
|
info->type = g_strdup(prop->type);
|
|
info->has_description = !!prop->description;
|
|
info->description = g_strdup(prop->description);
|
|
|
|
entry = g_malloc0(sizeof(*entry));
|
|
entry->value = info;
|
|
entry->next = prop_list;
|
|
prop_list = entry;
|
|
}
|
|
|
|
object_unref(obj);
|
|
|
|
return prop_list;
|
|
}
|
|
|
|
CpuDefinitionInfoList *qmp_query_cpu_definitions(Error **errp)
|
|
{
|
|
return arch_query_cpu_definitions(errp);
|
|
}
|
|
|
|
CpuModelExpansionInfo *qmp_query_cpu_model_expansion(CpuModelExpansionType type,
|
|
CpuModelInfo *model,
|
|
Error **errp)
|
|
{
|
|
return arch_query_cpu_model_expansion(type, model, errp);
|
|
}
|
|
|
|
CpuModelCompareInfo *qmp_query_cpu_model_comparison(CpuModelInfo *modela,
|
|
CpuModelInfo *modelb,
|
|
Error **errp)
|
|
{
|
|
return arch_query_cpu_model_comparison(modela, modelb, errp);
|
|
}
|
|
|
|
CpuModelBaselineInfo *qmp_query_cpu_model_baseline(CpuModelInfo *modela,
|
|
CpuModelInfo *modelb,
|
|
Error **errp)
|
|
{
|
|
return arch_query_cpu_model_baseline(modela, modelb, errp);
|
|
}
|
|
|
|
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(cur_mon, 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
|
|
} 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);
|
|
}
|
|
|
|
|
|
void qmp_object_add(const char *type, const char *id,
|
|
bool has_props, QObject *props, Error **errp)
|
|
{
|
|
QDict *pdict;
|
|
Visitor *v;
|
|
Object *obj;
|
|
|
|
if (props) {
|
|
pdict = qobject_to(QDict, props);
|
|
if (!pdict) {
|
|
error_setg(errp, QERR_INVALID_PARAMETER_TYPE, "props", "dict");
|
|
return;
|
|
}
|
|
QINCREF(pdict);
|
|
} else {
|
|
pdict = qdict_new();
|
|
}
|
|
|
|
v = qobject_input_visitor_new(QOBJECT(pdict));
|
|
obj = user_creatable_add_type(type, id, pdict, v, errp);
|
|
visit_free(v);
|
|
if (obj) {
|
|
object_unref(obj);
|
|
}
|
|
QDECREF(pdict);
|
|
}
|
|
|
|
void qmp_object_del(const char *id, Error **errp)
|
|
{
|
|
user_creatable_del(id, errp);
|
|
}
|
|
|
|
MemoryDeviceInfoList *qmp_query_memory_devices(Error **errp)
|
|
{
|
|
MemoryDeviceInfoList *head = NULL;
|
|
MemoryDeviceInfoList **prev = &head;
|
|
|
|
qmp_pc_dimm_device_list(qdev_get_machine(), &prev);
|
|
|
|
return head;
|
|
}
|
|
|
|
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));
|
|
|
|
mem_info->base_memory = 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;
|
|
}
|
|
|
|
static QemuSemaphore x_oob_test_sem;
|
|
|
|
static void __attribute__((constructor)) x_oob_test_init(void)
|
|
{
|
|
qemu_sem_init(&x_oob_test_sem, 0);
|
|
}
|
|
|
|
void qmp_x_oob_test(bool lock, Error **errp)
|
|
{
|
|
if (lock) {
|
|
qemu_sem_wait(&x_oob_test_sem);
|
|
} else {
|
|
qemu_sem_post(&x_oob_test_sem);
|
|
}
|
|
}
|