+++ /dev/null
-/*
- * Dynamic device configuration and creation.
- *
- * Copyright (c) 2009 CodeSourcery
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with this library; if not, see <http://www.gnu.org/licenses/>.
- */
-
-#include "qemu/osdep.h"
-#include "hw/sysbus.h"
-#include "monitor/hmp.h"
-#include "monitor/monitor.h"
-#include "monitor/qdev.h"
-#include "sysemu/arch_init.h"
-#include "qapi/error.h"
-#include "qapi/qapi-commands-qdev.h"
-#include "qapi/qmp/qdict.h"
-#include "qapi/qmp/qerror.h"
-#include "qemu/config-file.h"
-#include "qemu/error-report.h"
-#include "qemu/help_option.h"
-#include "qemu/option.h"
-#include "qemu/qemu-print.h"
-#include "qemu/option_int.h"
-#include "sysemu/block-backend.h"
-#include "sysemu/sysemu.h"
-#include "migration/misc.h"
-#include "migration/migration.h"
-#include "qemu/cutils.h"
-#include "hw/clock.h"
-
-/*
- * Aliases were a bad idea from the start. Let's keep them
- * from spreading further.
- */
-typedef struct QDevAlias
-{
- const char *typename;
- const char *alias;
- uint32_t arch_mask;
-} QDevAlias;
-
-/* Please keep this table sorted by typename. */
-static const QDevAlias qdev_alias_table[] = {
- { "AC97", "ac97" }, /* -soundhw name */
- { "e1000", "e1000-82540em" },
- { "ES1370", "es1370" }, /* -soundhw name */
- { "ich9-ahci", "ahci" },
- { "lsi53c895a", "lsi" },
- { "virtio-9p-ccw", "virtio-9p", QEMU_ARCH_S390X },
- { "virtio-9p-pci", "virtio-9p", QEMU_ARCH_ALL & ~QEMU_ARCH_S390X },
- { "virtio-balloon-ccw", "virtio-balloon", QEMU_ARCH_S390X },
- { "virtio-balloon-pci", "virtio-balloon",
- QEMU_ARCH_ALL & ~QEMU_ARCH_S390X },
- { "virtio-blk-ccw", "virtio-blk", QEMU_ARCH_S390X },
- { "virtio-blk-pci", "virtio-blk", QEMU_ARCH_ALL & ~QEMU_ARCH_S390X },
- { "virtio-gpu-ccw", "virtio-gpu", QEMU_ARCH_S390X },
- { "virtio-gpu-pci", "virtio-gpu", QEMU_ARCH_ALL & ~QEMU_ARCH_S390X },
- { "virtio-input-host-ccw", "virtio-input-host", QEMU_ARCH_S390X },
- { "virtio-input-host-pci", "virtio-input-host",
- QEMU_ARCH_ALL & ~QEMU_ARCH_S390X },
- { "virtio-iommu-pci", "virtio-iommu", QEMU_ARCH_ALL & ~QEMU_ARCH_S390X },
- { "virtio-keyboard-ccw", "virtio-keyboard", QEMU_ARCH_S390X },
- { "virtio-keyboard-pci", "virtio-keyboard",
- QEMU_ARCH_ALL & ~QEMU_ARCH_S390X },
- { "virtio-mouse-ccw", "virtio-mouse", QEMU_ARCH_S390X },
- { "virtio-mouse-pci", "virtio-mouse", QEMU_ARCH_ALL & ~QEMU_ARCH_S390X },
- { "virtio-net-ccw", "virtio-net", QEMU_ARCH_S390X },
- { "virtio-net-pci", "virtio-net", QEMU_ARCH_ALL & ~QEMU_ARCH_S390X },
- { "virtio-rng-ccw", "virtio-rng", QEMU_ARCH_S390X },
- { "virtio-rng-pci", "virtio-rng", QEMU_ARCH_ALL & ~QEMU_ARCH_S390X },
- { "virtio-scsi-ccw", "virtio-scsi", QEMU_ARCH_S390X },
- { "virtio-scsi-pci", "virtio-scsi", QEMU_ARCH_ALL & ~QEMU_ARCH_S390X },
- { "virtio-serial-ccw", "virtio-serial", QEMU_ARCH_S390X },
- { "virtio-serial-pci", "virtio-serial", QEMU_ARCH_ALL & ~QEMU_ARCH_S390X },
- { "virtio-tablet-ccw", "virtio-tablet", QEMU_ARCH_S390X },
- { "virtio-tablet-pci", "virtio-tablet", QEMU_ARCH_ALL & ~QEMU_ARCH_S390X },
- { }
-};
-
-static const char *qdev_class_get_alias(DeviceClass *dc)
-{
- const char *typename = object_class_get_name(OBJECT_CLASS(dc));
- int i;
-
- for (i = 0; qdev_alias_table[i].typename; i++) {
- if (qdev_alias_table[i].arch_mask &&
- !(qdev_alias_table[i].arch_mask & arch_type)) {
- continue;
- }
-
- if (strcmp(qdev_alias_table[i].typename, typename) == 0) {
- return qdev_alias_table[i].alias;
- }
- }
-
- return NULL;
-}
-
-static bool qdev_class_has_alias(DeviceClass *dc)
-{
- return (qdev_class_get_alias(dc) != NULL);
-}
-
-static void qdev_print_devinfo(DeviceClass *dc)
-{
- qemu_printf("name \"%s\"", object_class_get_name(OBJECT_CLASS(dc)));
- if (dc->bus_type) {
- qemu_printf(", bus %s", dc->bus_type);
- }
- if (qdev_class_has_alias(dc)) {
- qemu_printf(", alias \"%s\"", qdev_class_get_alias(dc));
- }
- if (dc->desc) {
- qemu_printf(", desc \"%s\"", dc->desc);
- }
- if (!dc->user_creatable) {
- qemu_printf(", no-user");
- }
- qemu_printf("\n");
-}
-
-static void qdev_print_devinfos(bool show_no_user)
-{
- static const char *cat_name[DEVICE_CATEGORY_MAX + 1] = {
- [DEVICE_CATEGORY_BRIDGE] = "Controller/Bridge/Hub",
- [DEVICE_CATEGORY_USB] = "USB",
- [DEVICE_CATEGORY_STORAGE] = "Storage",
- [DEVICE_CATEGORY_NETWORK] = "Network",
- [DEVICE_CATEGORY_INPUT] = "Input",
- [DEVICE_CATEGORY_DISPLAY] = "Display",
- [DEVICE_CATEGORY_SOUND] = "Sound",
- [DEVICE_CATEGORY_MISC] = "Misc",
- [DEVICE_CATEGORY_CPU] = "CPU",
- [DEVICE_CATEGORY_MAX] = "Uncategorized",
- };
- GSList *list, *elt;
- int i;
- bool cat_printed;
-
- module_load_qom_all();
- list = object_class_get_list_sorted(TYPE_DEVICE, false);
-
- for (i = 0; i <= DEVICE_CATEGORY_MAX; i++) {
- cat_printed = false;
- for (elt = list; elt; elt = elt->next) {
- DeviceClass *dc = OBJECT_CLASS_CHECK(DeviceClass, elt->data,
- TYPE_DEVICE);
- if ((i < DEVICE_CATEGORY_MAX
- ? !test_bit(i, dc->categories)
- : !bitmap_empty(dc->categories, DEVICE_CATEGORY_MAX))
- || (!show_no_user
- && !dc->user_creatable)) {
- continue;
- }
- if (!cat_printed) {
- qemu_printf("%s%s devices:\n", i ? "\n" : "", cat_name[i]);
- cat_printed = true;
- }
- qdev_print_devinfo(dc);
- }
- }
-
- g_slist_free(list);
-}
-
-static int set_property(void *opaque, const char *name, const char *value,
- Error **errp)
-{
- Object *obj = opaque;
- Error *err = NULL;
-
- if (strcmp(name, "driver") == 0)
- return 0;
- if (strcmp(name, "bus") == 0)
- return 0;
-
- object_property_parse(obj, value, name, &err);
- if (err != NULL) {
- error_propagate(errp, err);
- return -1;
- }
- return 0;
-}
-
-static const char *find_typename_by_alias(const char *alias)
-{
- int i;
-
- for (i = 0; qdev_alias_table[i].alias; i++) {
- if (qdev_alias_table[i].arch_mask &&
- !(qdev_alias_table[i].arch_mask & arch_type)) {
- continue;
- }
-
- if (strcmp(qdev_alias_table[i].alias, alias) == 0) {
- return qdev_alias_table[i].typename;
- }
- }
-
- return NULL;
-}
-
-static DeviceClass *qdev_get_device_class(const char **driver, Error **errp)
-{
- ObjectClass *oc;
- DeviceClass *dc;
- const char *original_name = *driver;
-
- oc = module_object_class_by_name(*driver);
- if (!oc) {
- const char *typename = find_typename_by_alias(*driver);
-
- if (typename) {
- *driver = typename;
- oc = module_object_class_by_name(*driver);
- }
- }
-
- if (!object_class_dynamic_cast(oc, TYPE_DEVICE)) {
- if (*driver != original_name) {
- error_setg(errp, "'%s' (alias '%s') is not a valid device model"
- " name", original_name, *driver);
- } else {
- error_setg(errp, "'%s' is not a valid device model name", *driver);
- }
- return NULL;
- }
-
- if (object_class_is_abstract(oc)) {
- error_setg(errp, QERR_INVALID_PARAMETER_VALUE, "driver",
- "non-abstract device type");
- return NULL;
- }
-
- dc = DEVICE_CLASS(oc);
- if (!dc->user_creatable ||
- (qdev_hotplug && !dc->hotpluggable)) {
- error_setg(errp, QERR_INVALID_PARAMETER_VALUE, "driver",
- "pluggable device type");
- return NULL;
- }
-
- return dc;
-}
-
-
-int qdev_device_help(QemuOpts *opts)
-{
- Error *local_err = NULL;
- const char *driver;
- ObjectPropertyInfoList *prop_list;
- ObjectPropertyInfoList *prop;
- GPtrArray *array;
- int i;
-
- driver = qemu_opt_get(opts, "driver");
- if (driver && is_help_option(driver)) {
- qdev_print_devinfos(false);
- return 1;
- }
-
- if (!driver || !qemu_opt_has_help_opt(opts)) {
- return 0;
- }
-
- if (!object_class_by_name(driver)) {
- const char *typename = find_typename_by_alias(driver);
-
- if (typename) {
- driver = typename;
- }
- }
-
- prop_list = qmp_device_list_properties(driver, &local_err);
- if (local_err) {
- goto error;
- }
-
- if (prop_list) {
- qemu_printf("%s options:\n", driver);
- } else {
- qemu_printf("There are no options for %s.\n", driver);
- }
- array = g_ptr_array_new();
- for (prop = prop_list; prop; prop = prop->next) {
- g_ptr_array_add(array,
- object_property_help(prop->value->name,
- prop->value->type,
- prop->value->default_value,
- prop->value->description));
- }
- g_ptr_array_sort(array, (GCompareFunc)qemu_pstrcmp0);
- for (i = 0; i < array->len; i++) {
- printf("%s\n", (char *)array->pdata[i]);
- }
- g_ptr_array_set_free_func(array, g_free);
- g_ptr_array_free(array, true);
- qapi_free_ObjectPropertyInfoList(prop_list);
- return 1;
-
-error:
- error_report_err(local_err);
- return 1;
-}
-
-static Object *qdev_get_peripheral(void)
-{
- static Object *dev;
-
- if (dev == NULL) {
- dev = container_get(qdev_get_machine(), "/peripheral");
- }
-
- return dev;
-}
-
-static Object *qdev_get_peripheral_anon(void)
-{
- static Object *dev;
-
- if (dev == NULL) {
- dev = container_get(qdev_get_machine(), "/peripheral-anon");
- }
-
- return dev;
-}
-
-static void qbus_error_append_bus_list_hint(DeviceState *dev,
- Error *const *errp)
-{
- BusState *child;
- const char *sep = " ";
-
- error_append_hint(errp, "child buses at \"%s\":",
- dev->id ? dev->id : object_get_typename(OBJECT(dev)));
- QLIST_FOREACH(child, &dev->child_bus, sibling) {
- error_append_hint(errp, "%s\"%s\"", sep, child->name);
- sep = ", ";
- }
- error_append_hint(errp, "\n");
-}
-
-static void qbus_error_append_dev_list_hint(BusState *bus,
- Error *const *errp)
-{
- BusChild *kid;
- const char *sep = " ";
-
- error_append_hint(errp, "devices at \"%s\":", bus->name);
- QTAILQ_FOREACH(kid, &bus->children, sibling) {
- DeviceState *dev = kid->child;
- error_append_hint(errp, "%s\"%s\"", sep,
- object_get_typename(OBJECT(dev)));
- if (dev->id) {
- error_append_hint(errp, "/\"%s\"", dev->id);
- }
- sep = ", ";
- }
- error_append_hint(errp, "\n");
-}
-
-static BusState *qbus_find_bus(DeviceState *dev, char *elem)
-{
- BusState *child;
-
- QLIST_FOREACH(child, &dev->child_bus, sibling) {
- if (strcmp(child->name, elem) == 0) {
- return child;
- }
- }
- return NULL;
-}
-
-static DeviceState *qbus_find_dev(BusState *bus, char *elem)
-{
- BusChild *kid;
-
- /*
- * try to match in order:
- * (1) instance id, if present
- * (2) driver name
- * (3) driver alias, if present
- */
- QTAILQ_FOREACH(kid, &bus->children, sibling) {
- DeviceState *dev = kid->child;
- if (dev->id && strcmp(dev->id, elem) == 0) {
- return dev;
- }
- }
- QTAILQ_FOREACH(kid, &bus->children, sibling) {
- DeviceState *dev = kid->child;
- if (strcmp(object_get_typename(OBJECT(dev)), elem) == 0) {
- return dev;
- }
- }
- QTAILQ_FOREACH(kid, &bus->children, sibling) {
- DeviceState *dev = kid->child;
- DeviceClass *dc = DEVICE_GET_CLASS(dev);
-
- if (qdev_class_has_alias(dc) &&
- strcmp(qdev_class_get_alias(dc), elem) == 0) {
- return dev;
- }
- }
- return NULL;
-}
-
-static inline bool qbus_is_full(BusState *bus)
-{
- BusClass *bus_class = BUS_GET_CLASS(bus);
- return bus_class->max_dev && bus->num_children >= bus_class->max_dev;
-}
-
-/*
- * Search the tree rooted at @bus for a bus.
- * If @name, search for a bus with that name. Note that bus names
- * need not be unique. Yes, that's screwed up.
- * Else search for a bus that is a subtype of @bus_typename.
- * If more than one exists, prefer one that can take another device.
- * Return the bus if found, else %NULL.
- */
-static BusState *qbus_find_recursive(BusState *bus, const char *name,
- const char *bus_typename)
-{
- BusChild *kid;
- BusState *pick, *child, *ret;
- bool match;
-
- assert(name || bus_typename);
- if (name) {
- match = !strcmp(bus->name, name);
- } else {
- match = !!object_dynamic_cast(OBJECT(bus), bus_typename);
- }
-
- if (match && !qbus_is_full(bus)) {
- return bus; /* root matches and isn't full */
- }
-
- pick = match ? bus : NULL;
-
- QTAILQ_FOREACH(kid, &bus->children, sibling) {
- DeviceState *dev = kid->child;
- QLIST_FOREACH(child, &dev->child_bus, sibling) {
- ret = qbus_find_recursive(child, name, bus_typename);
- if (ret && !qbus_is_full(ret)) {
- return ret; /* a descendant matches and isn't full */
- }
- if (ret && !pick) {
- pick = ret;
- }
- }
- }
-
- /* root or a descendant matches, but is full */
- return pick;
-}
-
-static BusState *qbus_find(const char *path, Error **errp)
-{
- DeviceState *dev;
- BusState *bus;
- char elem[128];
- int pos, len;
-
- /* find start element */
- if (path[0] == '/') {
- bus = sysbus_get_default();
- pos = 0;
- } else {
- if (sscanf(path, "%127[^/]%n", elem, &len) != 1) {
- assert(!path[0]);
- elem[0] = len = 0;
- }
- bus = qbus_find_recursive(sysbus_get_default(), elem, NULL);
- if (!bus) {
- error_setg(errp, "Bus '%s' not found", elem);
- return NULL;
- }
- pos = len;
- }
-
- for (;;) {
- assert(path[pos] == '/' || !path[pos]);
- while (path[pos] == '/') {
- pos++;
- }
- if (path[pos] == '\0') {
- break;
- }
-
- /* find device */
- if (sscanf(path+pos, "%127[^/]%n", elem, &len) != 1) {
- g_assert_not_reached();
- elem[0] = len = 0;
- }
- pos += len;
- dev = qbus_find_dev(bus, elem);
- if (!dev) {
- error_set(errp, ERROR_CLASS_DEVICE_NOT_FOUND,
- "Device '%s' not found", elem);
- qbus_error_append_dev_list_hint(bus, errp);
- return NULL;
- }
-
- assert(path[pos] == '/' || !path[pos]);
- while (path[pos] == '/') {
- pos++;
- }
- if (path[pos] == '\0') {
- /* last specified element is a device. If it has exactly
- * one child bus accept it nevertheless */
- if (dev->num_child_bus == 1) {
- bus = QLIST_FIRST(&dev->child_bus);
- break;
- }
- if (dev->num_child_bus) {
- error_setg(errp, "Device '%s' has multiple child buses",
- elem);
- qbus_error_append_bus_list_hint(dev, errp);
- } else {
- error_setg(errp, "Device '%s' has no child bus", elem);
- }
- return NULL;
- }
-
- /* find bus */
- if (sscanf(path+pos, "%127[^/]%n", elem, &len) != 1) {
- g_assert_not_reached();
- elem[0] = len = 0;
- }
- pos += len;
- bus = qbus_find_bus(dev, elem);
- if (!bus) {
- error_setg(errp, "Bus '%s' not found", elem);
- qbus_error_append_bus_list_hint(dev, errp);
- return NULL;
- }
- }
-
- if (qbus_is_full(bus)) {
- error_setg(errp, "Bus '%s' is full", path);
- return NULL;
- }
- return bus;
-}
-
-void qdev_set_id(DeviceState *dev, const char *id)
-{
- if (id) {
- dev->id = id;
- }
-
- if (dev->id) {
- object_property_add_child(qdev_get_peripheral(), dev->id,
- OBJECT(dev));
- } else {
- static int anon_count;
- gchar *name = g_strdup_printf("device[%d]", anon_count++);
- object_property_add_child(qdev_get_peripheral_anon(), name,
- OBJECT(dev));
- g_free(name);
- }
-}
-
-static int is_failover_device(void *opaque, const char *name, const char *value,
- Error **errp)
-{
- if (strcmp(name, "failover_pair_id") == 0) {
- QemuOpts *opts = (QemuOpts *)opaque;
-
- if (qdev_should_hide_device(opts)) {
- return 1;
- }
- }
-
- return 0;
-}
-
-static bool should_hide_device(QemuOpts *opts)
-{
- if (qemu_opt_foreach(opts, is_failover_device, opts, NULL) == 0) {
- return false;
- }
- return true;
-}
-
-DeviceState *qdev_device_add(QemuOpts *opts, Error **errp)
-{
- DeviceClass *dc;
- const char *driver, *path;
- DeviceState *dev = NULL;
- BusState *bus = NULL;
- Error *err = NULL;
- bool hide;
-
- driver = qemu_opt_get(opts, "driver");
- if (!driver) {
- error_setg(errp, QERR_MISSING_PARAMETER, "driver");
- return NULL;
- }
-
- /* find driver */
- dc = qdev_get_device_class(&driver, errp);
- if (!dc) {
- return NULL;
- }
-
- /* find bus */
- path = qemu_opt_get(opts, "bus");
- if (path != NULL) {
- bus = qbus_find(path, errp);
- if (!bus) {
- return NULL;
- }
- if (!object_dynamic_cast(OBJECT(bus), dc->bus_type)) {
- error_setg(errp, "Device '%s' can't go on %s bus",
- driver, object_get_typename(OBJECT(bus)));
- return NULL;
- }
- } else if (dc->bus_type != NULL) {
- bus = qbus_find_recursive(sysbus_get_default(), NULL, dc->bus_type);
- if (!bus || qbus_is_full(bus)) {
- error_setg(errp, "No '%s' bus found for device '%s'",
- dc->bus_type, driver);
- return NULL;
- }
- }
- hide = should_hide_device(opts);
-
- if ((hide || qdev_hotplug) && bus && !qbus_is_hotpluggable(bus)) {
- error_setg(errp, QERR_BUS_NO_HOTPLUG, bus->name);
- return NULL;
- }
-
- if (hide) {
- return NULL;
- }
-
- if (!migration_is_idle()) {
- error_setg(errp, "device_add not allowed while migrating");
- return NULL;
- }
-
- /* create device */
- dev = qdev_new(driver);
-
- /* Check whether the hotplug is allowed by the machine */
- if (qdev_hotplug && !qdev_hotplug_allowed(dev, &err)) {
- /* Error must be set in the machine hook */
- assert(err);
- goto err_del_dev;
- }
-
- if (!bus && qdev_hotplug && !qdev_get_machine_hotplug_handler(dev)) {
- /* No bus, no machine hotplug handler --> device is not hotpluggable */
- error_setg(&err, "Device '%s' can not be hotplugged on this machine",
- driver);
- goto err_del_dev;
- }
-
- qdev_set_id(dev, qemu_opts_id(opts));
-
- /* set properties */
- if (qemu_opt_foreach(opts, set_property, dev, &err)) {
- goto err_del_dev;
- }
-
- dev->opts = opts;
- qdev_realize(DEVICE(dev), bus, &err);
- if (err != NULL) {
- dev->opts = NULL;
- goto err_del_dev;
- }
- return dev;
-
-err_del_dev:
- error_propagate(errp, err);
- if (dev) {
- object_unparent(OBJECT(dev));
- object_unref(OBJECT(dev));
- }
- return NULL;
-}
-
-
-#define qdev_printf(fmt, ...) monitor_printf(mon, "%*s" fmt, indent, "", ## __VA_ARGS__)
-static void qbus_print(Monitor *mon, BusState *bus, int indent);
-
-static void qdev_print_props(Monitor *mon, DeviceState *dev, Property *props,
- int indent)
-{
- if (!props)
- return;
- for (; props->name; props++) {
- Error *err = NULL;
- char *value;
- char *legacy_name = g_strdup_printf("legacy-%s", props->name);
- if (object_property_get_type(OBJECT(dev), legacy_name, NULL)) {
- value = object_property_get_str(OBJECT(dev), legacy_name, &err);
- } else {
- value = object_property_print(OBJECT(dev), props->name, true, &err);
- }
- g_free(legacy_name);
-
- if (err) {
- error_free(err);
- continue;
- }
- qdev_printf("%s = %s\n", props->name,
- value && *value ? value : "<null>");
- g_free(value);
- }
-}
-
-static void bus_print_dev(BusState *bus, Monitor *mon, DeviceState *dev, int indent)
-{
- BusClass *bc = BUS_GET_CLASS(bus);
-
- if (bc->print_dev) {
- bc->print_dev(mon, dev, indent);
- }
-}
-
-static void qdev_print(Monitor *mon, DeviceState *dev, int indent)
-{
- ObjectClass *class;
- BusState *child;
- NamedGPIOList *ngl;
- NamedClockList *ncl;
-
- qdev_printf("dev: %s, id \"%s\"\n", object_get_typename(OBJECT(dev)),
- dev->id ? dev->id : "");
- indent += 2;
- QLIST_FOREACH(ngl, &dev->gpios, node) {
- if (ngl->num_in) {
- qdev_printf("gpio-in \"%s\" %d\n", ngl->name ? ngl->name : "",
- ngl->num_in);
- }
- if (ngl->num_out) {
- qdev_printf("gpio-out \"%s\" %d\n", ngl->name ? ngl->name : "",
- ngl->num_out);
- }
- }
- QLIST_FOREACH(ncl, &dev->clocks, node) {
- qdev_printf("clock-%s%s \"%s\" freq_hz=%e\n",
- ncl->output ? "out" : "in",
- ncl->alias ? " (alias)" : "",
- ncl->name,
- CLOCK_PERIOD_TO_HZ(1.0 * clock_get(ncl->clock)));
- }
- class = object_get_class(OBJECT(dev));
- do {
- qdev_print_props(mon, dev, DEVICE_CLASS(class)->props_, indent);
- class = object_class_get_parent(class);
- } while (class != object_class_by_name(TYPE_DEVICE));
- bus_print_dev(dev->parent_bus, mon, dev, indent);
- QLIST_FOREACH(child, &dev->child_bus, sibling) {
- qbus_print(mon, child, indent);
- }
-}
-
-static void qbus_print(Monitor *mon, BusState *bus, int indent)
-{
- BusChild *kid;
-
- qdev_printf("bus: %s\n", bus->name);
- indent += 2;
- qdev_printf("type %s\n", object_get_typename(OBJECT(bus)));
- QTAILQ_FOREACH(kid, &bus->children, sibling) {
- DeviceState *dev = kid->child;
- qdev_print(mon, dev, indent);
- }
-}
-#undef qdev_printf
-
-void hmp_info_qtree(Monitor *mon, const QDict *qdict)
-{
- if (sysbus_get_default())
- qbus_print(mon, sysbus_get_default(), 0);
-}
-
-void hmp_info_qdm(Monitor *mon, const QDict *qdict)
-{
- qdev_print_devinfos(true);
-}
-
-void qmp_device_add(QDict *qdict, QObject **ret_data, Error **errp)
-{
- Error *local_err = NULL;
- QemuOpts *opts;
- DeviceState *dev;
-
- opts = qemu_opts_from_qdict(qemu_find_opts("device"), qdict, &local_err);
- if (local_err) {
- error_propagate(errp, local_err);
- return;
- }
- if (!monitor_cur_is_qmp() && qdev_device_help(opts)) {
- qemu_opts_del(opts);
- return;
- }
- dev = qdev_device_add(opts, &local_err);
- if (!dev) {
- error_propagate(errp, local_err);
- qemu_opts_del(opts);
- return;
- }
- object_unref(OBJECT(dev));
-}
-
-static DeviceState *find_device_state(const char *id, Error **errp)
-{
- Object *obj;
-
- if (id[0] == '/') {
- obj = object_resolve_path(id, NULL);
- } else {
- char *root_path = object_get_canonical_path(qdev_get_peripheral());
- char *path = g_strdup_printf("%s/%s", root_path, id);
-
- g_free(root_path);
- obj = object_resolve_path_type(path, TYPE_DEVICE, NULL);
- g_free(path);
- }
-
- if (!obj) {
- error_set(errp, ERROR_CLASS_DEVICE_NOT_FOUND,
- "Device '%s' not found", id);
- return NULL;
- }
-
- if (!object_dynamic_cast(obj, TYPE_DEVICE)) {
- error_setg(errp, "%s is not a hotpluggable device", id);
- return NULL;
- }
-
- return DEVICE(obj);
-}
-
-void qdev_unplug(DeviceState *dev, Error **errp)
-{
- DeviceClass *dc = DEVICE_GET_CLASS(dev);
- HotplugHandler *hotplug_ctrl;
- HotplugHandlerClass *hdc;
- Error *local_err = NULL;
-
- if (dev->parent_bus && !qbus_is_hotpluggable(dev->parent_bus)) {
- error_setg(errp, QERR_BUS_NO_HOTPLUG, dev->parent_bus->name);
- return;
- }
-
- if (!dc->hotpluggable) {
- error_setg(errp, QERR_DEVICE_NO_HOTPLUG,
- object_get_typename(OBJECT(dev)));
- return;
- }
-
- if (!migration_is_idle() && !dev->allow_unplug_during_migration) {
- error_setg(errp, "device_del not allowed while migrating");
- return;
- }
-
- qdev_hot_removed = true;
-
- hotplug_ctrl = qdev_get_hotplug_handler(dev);
- /* hotpluggable device MUST have HotplugHandler, if it doesn't
- * then something is very wrong with it */
- g_assert(hotplug_ctrl);
-
- /* If device supports async unplug just request it to be done,
- * otherwise just remove it synchronously */
- hdc = HOTPLUG_HANDLER_GET_CLASS(hotplug_ctrl);
- if (hdc->unplug_request) {
- hotplug_handler_unplug_request(hotplug_ctrl, dev, &local_err);
- } else {
- hotplug_handler_unplug(hotplug_ctrl, dev, &local_err);
- if (!local_err) {
- object_unparent(OBJECT(dev));
- }
- }
- error_propagate(errp, local_err);
-}
-
-void qmp_device_del(const char *id, Error **errp)
-{
- DeviceState *dev = find_device_state(id, errp);
- if (dev != NULL) {
- if (dev->pending_deleted_event) {
- error_setg(errp, "Device %s is already in the "
- "process of unplug", id);
- return;
- }
-
- qdev_unplug(dev, errp);
- }
-}
-
-void hmp_device_add(Monitor *mon, const QDict *qdict)
-{
- Error *err = NULL;
-
- qmp_device_add((QDict *)qdict, NULL, &err);
- hmp_handle_error(mon, err);
-}
-
-void hmp_device_del(Monitor *mon, const QDict *qdict)
-{
- const char *id = qdict_get_str(qdict, "id");
- Error *err = NULL;
-
- qmp_device_del(id, &err);
- hmp_handle_error(mon, err);
-}
-
-BlockBackend *blk_by_qdev_id(const char *id, Error **errp)
-{
- DeviceState *dev;
- BlockBackend *blk;
-
- dev = find_device_state(id, errp);
- if (dev == NULL) {
- return NULL;
- }
-
- blk = blk_by_dev(dev);
- if (!blk) {
- error_setg(errp, "Device does not have a block device backend");
- }
- return blk;
-}
-
-void qdev_machine_init(void)
-{
- qdev_get_peripheral_anon();
- qdev_get_peripheral();
-}
-
-QemuOptsList qemu_device_opts = {
- .name = "device",
- .implied_opt_name = "driver",
- .head = QTAILQ_HEAD_INITIALIZER(qemu_device_opts.head),
- .desc = {
- /*
- * no elements => accept any
- * sanity checking will happen later
- * when setting device properties
- */
- { /* end of list */ }
- },
-};
-
-QemuOptsList qemu_global_opts = {
- .name = "global",
- .head = QTAILQ_HEAD_INITIALIZER(qemu_global_opts.head),
- .desc = {
- {
- .name = "driver",
- .type = QEMU_OPT_STRING,
- },{
- .name = "property",
- .type = QEMU_OPT_STRING,
- },{
- .name = "value",
- .type = QEMU_OPT_STRING,
- },
- { /* end of list */ }
- },
-};
-
-int qemu_global_option(const char *str)
-{
- char driver[64], property[64];
- QemuOpts *opts;
- int rc, offset;
-
- rc = sscanf(str, "%63[^.=].%63[^=]%n", driver, property, &offset);
- if (rc == 2 && str[offset] == '=') {
- opts = qemu_opts_create(&qemu_global_opts, NULL, 0, &error_abort);
- qemu_opt_set(opts, "driver", driver, &error_abort);
- qemu_opt_set(opts, "property", property, &error_abort);
- qemu_opt_set(opts, "value", str + offset + 1, &error_abort);
- return 0;
- }
-
- opts = qemu_opts_parse_noisily(&qemu_global_opts, str, false);
- if (!opts) {
- return -1;
- }
-
- return 0;
-}
projects / mirror_qemu.git / blobdiff