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authorPaolo Bonzini <pbonzini@redhat.com>2020-10-06 09:01:22 +0200
committerPaolo Bonzini <pbonzini@redhat.com>2020-10-12 11:50:21 -0400
commit800d4deda04be016a95fbbf397c830a2d14ff9f6 (patch)
tree3079145f9804bb8c96deb3640fa51c5680ccae2a /softmmu/qdev-monitor.c
parent8d0bceba24cc0917d9c6c5252d78db3d9fd5c58d (diff)
softmmu: move more files to softmmu/
Keep most softmmu_ss files into the system-emulation-specific directory. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'softmmu/qdev-monitor.c')
-rw-r--r--softmmu/qdev-monitor.c993
1 files changed, 993 insertions, 0 deletions
diff --git a/softmmu/qdev-monitor.c b/softmmu/qdev-monitor.c
new file mode 100644
index 0000000000..e9b7228480
--- /dev/null
+++ b/softmmu/qdev-monitor.c
@@ -0,0 +1,993 @@
+/*
+ * 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;
+
+ if (strcmp(name, "driver") == 0)
+ return 0;
+ if (strcmp(name, "bus") == 0)
+ return 0;
+
+ if (!object_property_parse(obj, name, value, errp)) {
+ 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++) {
+ qemu_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;
+ 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, errp)) {
+ 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(errp, "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, errp)) {
+ goto err_del_dev;
+ }
+
+ dev->opts = opts;
+ if (!qdev_realize(DEVICE(dev), bus, errp)) {
+ dev->opts = NULL;
+ goto err_del_dev;
+ }
+ return dev;
+
+err_del_dev:
+ 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++) {
+ 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, NULL);
+ } else {
+ value = object_property_print(OBJECT(dev), props->name, true,
+ NULL);
+ }
+ g_free(legacy_name);
+
+ if (!value) {
+ continue;
+ }
+ qdev_printf("%s = %s\n", props->name,
+ *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)
+{
+ QemuOpts *opts;
+ DeviceState *dev;
+
+ opts = qemu_opts_from_qdict(qemu_find_opts("device"), qdict, errp);
+ if (!opts) {
+ return;
+ }
+ if (!monitor_cur_is_qmp() && qdev_device_help(opts)) {
+ qemu_opts_del(opts);
+ return;
+ }
+ dev = qdev_device_add(opts, errp);
+ if (!dev) {
+ 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;
+}