root / qdev-monitor.c @ 2fa4e56d
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/*
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* Dynamic device configuration and creation.
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*
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* Copyright (c) 2009 CodeSourcery
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, see <http://www.gnu.org/licenses/>.
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*/
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#include "hw/qdev.h" |
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#include "hw/sysbus.h" |
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#include "monitor/monitor.h" |
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#include "monitor/qdev.h" |
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#include "qmp-commands.h" |
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#include "sysemu/arch_init.h" |
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#include "qemu/config-file.h" |
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/*
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* Aliases were a bad idea from the start. Let's keep them
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* from spreading further.
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*/
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typedef struct QDevAlias |
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{ |
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const char *typename; |
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const char *alias; |
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uint32_t arch_mask; |
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} QDevAlias; |
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static const QDevAlias qdev_alias_table[] = { |
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{ "virtio-blk-pci", "virtio-blk", QEMU_ARCH_ALL & ~QEMU_ARCH_S390X }, |
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{ "virtio-net-pci", "virtio-net", QEMU_ARCH_ALL & ~QEMU_ARCH_S390X }, |
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{ "virtio-serial-pci", "virtio-serial", QEMU_ARCH_ALL & ~QEMU_ARCH_S390X }, |
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{ "virtio-balloon-pci", "virtio-balloon", |
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QEMU_ARCH_ALL & ~QEMU_ARCH_S390X }, |
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{ "virtio-blk-s390", "virtio-blk", QEMU_ARCH_S390X }, |
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{ "virtio-net-s390", "virtio-net", QEMU_ARCH_S390X }, |
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{ "virtio-serial-s390", "virtio-serial", QEMU_ARCH_S390X }, |
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{ "lsi53c895a", "lsi" }, |
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{ "ich9-ahci", "ahci" }, |
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{ "kvm-pci-assign", "pci-assign" }, |
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{ } |
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}; |
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static const char *qdev_class_get_alias(DeviceClass *dc) |
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{ |
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const char *typename = object_class_get_name(OBJECT_CLASS(dc)); |
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int i;
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for (i = 0; qdev_alias_table[i].typename; i++) { |
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if (qdev_alias_table[i].arch_mask &&
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!(qdev_alias_table[i].arch_mask & arch_type)) { |
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continue;
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} |
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if (strcmp(qdev_alias_table[i].typename, typename) == 0) { |
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return qdev_alias_table[i].alias;
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} |
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} |
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return NULL; |
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} |
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static bool qdev_class_has_alias(DeviceClass *dc) |
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{ |
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return (qdev_class_get_alias(dc) != NULL); |
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} |
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static void qdev_print_devinfo(DeviceClass *dc) |
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{ |
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error_printf("name \"%s\"", object_class_get_name(OBJECT_CLASS(dc)));
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if (dc->bus_type) {
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error_printf(", bus %s", dc->bus_type);
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} |
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if (qdev_class_has_alias(dc)) {
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error_printf(", alias \"%s\"", qdev_class_get_alias(dc));
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} |
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if (dc->desc) {
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error_printf(", desc \"%s\"", dc->desc);
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} |
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if (dc->no_user) {
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error_printf(", no-user");
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} |
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error_printf("\n");
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} |
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static gint devinfo_cmp(gconstpointer a, gconstpointer b)
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{ |
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return strcasecmp(object_class_get_name((ObjectClass *)a),
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object_class_get_name((ObjectClass *)b)); |
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} |
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static void qdev_print_devinfos(bool show_no_user) |
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{ |
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static const char *cat_name[DEVICE_CATEGORY_MAX + 1] = { |
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[DEVICE_CATEGORY_BRIDGE] = "Controller/Bridge/Hub",
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[DEVICE_CATEGORY_USB] = "USB",
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[DEVICE_CATEGORY_STORAGE] = "Storage",
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[DEVICE_CATEGORY_NETWORK] = "Network",
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[DEVICE_CATEGORY_INPUT] = "Input",
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[DEVICE_CATEGORY_DISPLAY] = "Display",
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[DEVICE_CATEGORY_SOUND] = "Sound",
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[DEVICE_CATEGORY_MISC] = "Misc",
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[DEVICE_CATEGORY_MAX] = "Uncategorized",
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}; |
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GSList *list, *elt; |
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int i;
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bool cat_printed;
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list = g_slist_sort(object_class_get_list(TYPE_DEVICE, false),
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devinfo_cmp); |
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for (i = 0; i <= DEVICE_CATEGORY_MAX; i++) { |
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cat_printed = false;
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for (elt = list; elt; elt = elt->next) {
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DeviceClass *dc = OBJECT_CLASS_CHECK(DeviceClass, elt->data, |
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TYPE_DEVICE); |
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if ((i < DEVICE_CATEGORY_MAX
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? !test_bit(i, dc->categories) |
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: !bitmap_empty(dc->categories, DEVICE_CATEGORY_MAX)) |
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|| (!show_no_user && dc->no_user)) { |
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continue;
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} |
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if (!cat_printed) {
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error_printf("%s%s devices:\n", i ? "\n" : "", |
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cat_name[i]); |
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cat_printed = true;
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} |
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qdev_print_devinfo(dc); |
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} |
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} |
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g_slist_free(list); |
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} |
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static int set_property(const char *name, const char *value, void *opaque) |
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{ |
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DeviceState *dev = opaque; |
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Error *err = NULL;
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if (strcmp(name, "driver") == 0) |
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return 0; |
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if (strcmp(name, "bus") == 0) |
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return 0; |
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qdev_prop_parse(dev, name, value, &err); |
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if (err != NULL) { |
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qerror_report_err(err); |
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error_free(err); |
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return -1; |
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} |
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return 0; |
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} |
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static const char *find_typename_by_alias(const char *alias) |
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{ |
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int i;
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for (i = 0; qdev_alias_table[i].alias; i++) { |
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if (qdev_alias_table[i].arch_mask &&
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!(qdev_alias_table[i].arch_mask & arch_type)) { |
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continue;
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} |
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if (strcmp(qdev_alias_table[i].alias, alias) == 0) { |
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return qdev_alias_table[i].typename;
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} |
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} |
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return NULL; |
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} |
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int qdev_device_help(QemuOpts *opts)
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{ |
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const char *driver; |
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Property *prop; |
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ObjectClass *klass; |
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driver = qemu_opt_get(opts, "driver");
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if (driver && is_help_option(driver)) {
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qdev_print_devinfos(false);
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return 1; |
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} |
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if (!driver || !qemu_opt_has_help_opt(opts)) {
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return 0; |
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} |
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klass = object_class_by_name(driver); |
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if (!klass) {
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const char *typename = find_typename_by_alias(driver); |
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if (typename) {
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driver = typename; |
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klass = object_class_by_name(driver); |
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} |
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} |
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if (!klass) {
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return 0; |
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} |
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do {
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for (prop = DEVICE_CLASS(klass)->props; prop && prop->name; prop++) {
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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) {
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continue; /* no way to set it, don't show */ |
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} |
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error_printf("%s.%s=%s\n", driver, prop->name,
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prop->info->legacy_name ?: prop->info->name); |
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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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return 1; |
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} |
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static Object *qdev_get_peripheral(void) |
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{ |
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static Object *dev;
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if (dev == NULL) { |
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dev = container_get(qdev_get_machine(), "/peripheral");
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} |
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return dev;
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} |
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static Object *qdev_get_peripheral_anon(void) |
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{ |
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static Object *dev;
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if (dev == NULL) { |
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dev = container_get(qdev_get_machine(), "/peripheral-anon");
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} |
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return dev;
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} |
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static void qbus_list_bus(DeviceState *dev) |
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{ |
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BusState *child; |
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const char *sep = " "; |
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error_printf("child busses at \"%s\":",
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dev->id ? dev->id : object_get_typename(OBJECT(dev))); |
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QLIST_FOREACH(child, &dev->child_bus, sibling) { |
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error_printf("%s\"%s\"", sep, child->name);
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sep = ", ";
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} |
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error_printf("\n");
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} |
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static void qbus_list_dev(BusState *bus) |
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{ |
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BusChild *kid; |
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const char *sep = " "; |
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error_printf("devices at \"%s\":", bus->name);
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QTAILQ_FOREACH(kid, &bus->children, sibling) { |
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DeviceState *dev = kid->child; |
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error_printf("%s\"%s\"", sep, object_get_typename(OBJECT(dev)));
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if (dev->id)
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error_printf("/\"%s\"", dev->id);
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sep = ", ";
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} |
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error_printf("\n");
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} |
281 |
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static BusState *qbus_find_bus(DeviceState *dev, char *elem) |
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{ |
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BusState *child; |
285 |
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QLIST_FOREACH(child, &dev->child_bus, sibling) { |
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if (strcmp(child->name, elem) == 0) { |
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return child;
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} |
290 |
} |
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return NULL; |
292 |
} |
293 |
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static DeviceState *qbus_find_dev(BusState *bus, char *elem) |
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{ |
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BusChild *kid; |
297 |
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/*
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* try to match in order:
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* (1) instance id, if present
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* (2) driver name
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* (3) driver alias, if present
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*/
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QTAILQ_FOREACH(kid, &bus->children, sibling) { |
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DeviceState *dev = kid->child; |
306 |
if (dev->id && strcmp(dev->id, elem) == 0) { |
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return dev;
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} |
309 |
} |
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QTAILQ_FOREACH(kid, &bus->children, sibling) { |
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DeviceState *dev = kid->child; |
312 |
if (strcmp(object_get_typename(OBJECT(dev)), elem) == 0) { |
313 |
return dev;
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} |
315 |
} |
316 |
QTAILQ_FOREACH(kid, &bus->children, sibling) { |
317 |
DeviceState *dev = kid->child; |
318 |
DeviceClass *dc = DEVICE_GET_CLASS(dev); |
319 |
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if (qdev_class_has_alias(dc) &&
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strcmp(qdev_class_get_alias(dc), elem) == 0) {
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return dev;
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} |
324 |
} |
325 |
return NULL; |
326 |
} |
327 |
|
328 |
static BusState *qbus_find_recursive(BusState *bus, const char *name, |
329 |
const char *bus_typename) |
330 |
{ |
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BusClass *bus_class = BUS_GET_CLASS(bus); |
332 |
BusChild *kid; |
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BusState *child, *ret; |
334 |
int match = 1; |
335 |
|
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if (name && (strcmp(bus->name, name) != 0)) { |
337 |
match = 0;
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} else if (bus_typename && !object_dynamic_cast(OBJECT(bus), bus_typename)) { |
339 |
match = 0;
|
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} else if ((bus_class->max_dev != 0) && (bus_class->max_dev <= bus->max_index)) { |
341 |
if (name != NULL) { |
342 |
/* bus was explicitly specified: return an error. */
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343 |
qerror_report(ERROR_CLASS_GENERIC_ERROR, "Bus '%s' is full",
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bus->name); |
345 |
return NULL; |
346 |
} else {
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347 |
/* bus was not specified: try to find another one. */
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match = 0;
|
349 |
} |
350 |
} |
351 |
if (match) {
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return bus;
|
353 |
} |
354 |
|
355 |
QTAILQ_FOREACH(kid, &bus->children, sibling) { |
356 |
DeviceState *dev = kid->child; |
357 |
QLIST_FOREACH(child, &dev->child_bus, sibling) { |
358 |
ret = qbus_find_recursive(child, name, bus_typename); |
359 |
if (ret) {
|
360 |
return ret;
|
361 |
} |
362 |
} |
363 |
} |
364 |
return NULL; |
365 |
} |
366 |
|
367 |
static BusState *qbus_find(const char *path) |
368 |
{ |
369 |
DeviceState *dev; |
370 |
BusState *bus; |
371 |
char elem[128]; |
372 |
int pos, len;
|
373 |
|
374 |
/* find start element */
|
375 |
if (path[0] == '/') { |
376 |
bus = sysbus_get_default(); |
377 |
pos = 0;
|
378 |
} else {
|
379 |
if (sscanf(path, "%127[^/]%n", elem, &len) != 1) { |
380 |
assert(!path[0]);
|
381 |
elem[0] = len = 0; |
382 |
} |
383 |
bus = qbus_find_recursive(sysbus_get_default(), elem, NULL);
|
384 |
if (!bus) {
|
385 |
qerror_report(QERR_BUS_NOT_FOUND, elem); |
386 |
return NULL; |
387 |
} |
388 |
pos = len; |
389 |
} |
390 |
|
391 |
for (;;) {
|
392 |
assert(path[pos] == '/' || !path[pos]);
|
393 |
while (path[pos] == '/') { |
394 |
pos++; |
395 |
} |
396 |
if (path[pos] == '\0') { |
397 |
return bus;
|
398 |
} |
399 |
|
400 |
/* find device */
|
401 |
if (sscanf(path+pos, "%127[^/]%n", elem, &len) != 1) { |
402 |
g_assert_not_reached(); |
403 |
elem[0] = len = 0; |
404 |
} |
405 |
pos += len; |
406 |
dev = qbus_find_dev(bus, elem); |
407 |
if (!dev) {
|
408 |
qerror_report(QERR_DEVICE_NOT_FOUND, elem); |
409 |
if (!monitor_cur_is_qmp()) {
|
410 |
qbus_list_dev(bus); |
411 |
} |
412 |
return NULL; |
413 |
} |
414 |
|
415 |
assert(path[pos] == '/' || !path[pos]);
|
416 |
while (path[pos] == '/') { |
417 |
pos++; |
418 |
} |
419 |
if (path[pos] == '\0') { |
420 |
/* last specified element is a device. If it has exactly
|
421 |
* one child bus accept it nevertheless */
|
422 |
switch (dev->num_child_bus) {
|
423 |
case 0: |
424 |
qerror_report(QERR_DEVICE_NO_BUS, elem); |
425 |
return NULL; |
426 |
case 1: |
427 |
return QLIST_FIRST(&dev->child_bus);
|
428 |
default:
|
429 |
qerror_report(QERR_DEVICE_MULTIPLE_BUSSES, elem); |
430 |
if (!monitor_cur_is_qmp()) {
|
431 |
qbus_list_bus(dev); |
432 |
} |
433 |
return NULL; |
434 |
} |
435 |
} |
436 |
|
437 |
/* find bus */
|
438 |
if (sscanf(path+pos, "%127[^/]%n", elem, &len) != 1) { |
439 |
g_assert_not_reached(); |
440 |
elem[0] = len = 0; |
441 |
} |
442 |
pos += len; |
443 |
bus = qbus_find_bus(dev, elem); |
444 |
if (!bus) {
|
445 |
qerror_report(QERR_BUS_NOT_FOUND, elem); |
446 |
if (!monitor_cur_is_qmp()) {
|
447 |
qbus_list_bus(dev); |
448 |
} |
449 |
return NULL; |
450 |
} |
451 |
} |
452 |
} |
453 |
|
454 |
DeviceState *qdev_device_add(QemuOpts *opts) |
455 |
{ |
456 |
ObjectClass *oc; |
457 |
DeviceClass *dc; |
458 |
const char *driver, *path, *id; |
459 |
DeviceState *qdev; |
460 |
BusState *bus = NULL;
|
461 |
|
462 |
driver = qemu_opt_get(opts, "driver");
|
463 |
if (!driver) {
|
464 |
qerror_report(QERR_MISSING_PARAMETER, "driver");
|
465 |
return NULL; |
466 |
} |
467 |
|
468 |
/* find driver */
|
469 |
oc = object_class_by_name(driver); |
470 |
if (!oc) {
|
471 |
const char *typename = find_typename_by_alias(driver); |
472 |
|
473 |
if (typename) {
|
474 |
driver = typename; |
475 |
oc = object_class_by_name(driver); |
476 |
} |
477 |
} |
478 |
|
479 |
if (!oc) {
|
480 |
qerror_report(QERR_INVALID_PARAMETER_VALUE, "driver", "device type"); |
481 |
return NULL; |
482 |
} |
483 |
|
484 |
if (object_class_is_abstract(oc)) {
|
485 |
qerror_report(QERR_INVALID_PARAMETER_VALUE, "driver",
|
486 |
"non-abstract device type");
|
487 |
return NULL; |
488 |
} |
489 |
|
490 |
dc = DEVICE_CLASS(oc); |
491 |
|
492 |
/* find bus */
|
493 |
path = qemu_opt_get(opts, "bus");
|
494 |
if (path != NULL) { |
495 |
bus = qbus_find(path); |
496 |
if (!bus) {
|
497 |
return NULL; |
498 |
} |
499 |
if (!object_dynamic_cast(OBJECT(bus), dc->bus_type)) {
|
500 |
qerror_report(QERR_BAD_BUS_FOR_DEVICE, |
501 |
driver, object_get_typename(OBJECT(bus))); |
502 |
return NULL; |
503 |
} |
504 |
} else if (dc->bus_type != NULL) { |
505 |
bus = qbus_find_recursive(sysbus_get_default(), NULL, dc->bus_type);
|
506 |
if (!bus) {
|
507 |
qerror_report(QERR_NO_BUS_FOR_DEVICE, |
508 |
dc->bus_type, driver); |
509 |
return NULL; |
510 |
} |
511 |
} |
512 |
if (qdev_hotplug && bus && !bus->allow_hotplug) {
|
513 |
qerror_report(QERR_BUS_NO_HOTPLUG, bus->name); |
514 |
return NULL; |
515 |
} |
516 |
|
517 |
/* create device, set properties */
|
518 |
qdev = DEVICE(object_new(driver)); |
519 |
|
520 |
if (bus) {
|
521 |
qdev_set_parent_bus(qdev, bus); |
522 |
} |
523 |
|
524 |
id = qemu_opts_id(opts); |
525 |
if (id) {
|
526 |
qdev->id = id; |
527 |
} |
528 |
if (qemu_opt_foreach(opts, set_property, qdev, 1) != 0) { |
529 |
qdev_free(qdev); |
530 |
return NULL; |
531 |
} |
532 |
if (qdev->id) {
|
533 |
object_property_add_child(qdev_get_peripheral(), qdev->id, |
534 |
OBJECT(qdev), NULL);
|
535 |
} else {
|
536 |
static int anon_count; |
537 |
gchar *name = g_strdup_printf("device[%d]", anon_count++);
|
538 |
object_property_add_child(qdev_get_peripheral_anon(), name, |
539 |
OBJECT(qdev), NULL);
|
540 |
g_free(name); |
541 |
} |
542 |
if (qdev_init(qdev) < 0) { |
543 |
qerror_report(QERR_DEVICE_INIT_FAILED, driver); |
544 |
return NULL; |
545 |
} |
546 |
qdev->opts = opts; |
547 |
return qdev;
|
548 |
} |
549 |
|
550 |
|
551 |
#define qdev_printf(fmt, ...) monitor_printf(mon, "%*s" fmt, indent, "", ## __VA_ARGS__) |
552 |
static void qbus_print(Monitor *mon, BusState *bus, int indent); |
553 |
|
554 |
static void qdev_print_props(Monitor *mon, DeviceState *dev, Property *props, |
555 |
int indent)
|
556 |
{ |
557 |
if (!props)
|
558 |
return;
|
559 |
for (; props->name; props++) {
|
560 |
Error *err = NULL;
|
561 |
char *value;
|
562 |
char *legacy_name = g_strdup_printf("legacy-%s", props->name); |
563 |
if (object_property_get_type(OBJECT(dev), legacy_name, NULL)) { |
564 |
value = object_property_get_str(OBJECT(dev), legacy_name, &err); |
565 |
} else {
|
566 |
value = object_property_print(OBJECT(dev), props->name, &err); |
567 |
} |
568 |
g_free(legacy_name); |
569 |
|
570 |
if (err) {
|
571 |
error_free(err); |
572 |
continue;
|
573 |
} |
574 |
qdev_printf("%s = %s\n", props->name,
|
575 |
value && *value ? value : "<null>");
|
576 |
g_free(value); |
577 |
} |
578 |
} |
579 |
|
580 |
static void bus_print_dev(BusState *bus, Monitor *mon, DeviceState *dev, int indent) |
581 |
{ |
582 |
BusClass *bc = BUS_GET_CLASS(bus); |
583 |
|
584 |
if (bc->print_dev) {
|
585 |
bc->print_dev(mon, dev, indent); |
586 |
} |
587 |
} |
588 |
|
589 |
static void qdev_print(Monitor *mon, DeviceState *dev, int indent) |
590 |
{ |
591 |
ObjectClass *class; |
592 |
BusState *child; |
593 |
qdev_printf("dev: %s, id \"%s\"\n", object_get_typename(OBJECT(dev)),
|
594 |
dev->id ? dev->id : "");
|
595 |
indent += 2;
|
596 |
if (dev->num_gpio_in) {
|
597 |
qdev_printf("gpio-in %d\n", dev->num_gpio_in);
|
598 |
} |
599 |
if (dev->num_gpio_out) {
|
600 |
qdev_printf("gpio-out %d\n", dev->num_gpio_out);
|
601 |
} |
602 |
class = object_get_class(OBJECT(dev)); |
603 |
do {
|
604 |
qdev_print_props(mon, dev, DEVICE_CLASS(class)->props, indent); |
605 |
class = object_class_get_parent(class); |
606 |
} while (class != object_class_by_name(TYPE_DEVICE));
|
607 |
bus_print_dev(dev->parent_bus, mon, dev, indent); |
608 |
QLIST_FOREACH(child, &dev->child_bus, sibling) { |
609 |
qbus_print(mon, child, indent); |
610 |
} |
611 |
} |
612 |
|
613 |
static void qbus_print(Monitor *mon, BusState *bus, int indent) |
614 |
{ |
615 |
BusChild *kid; |
616 |
|
617 |
qdev_printf("bus: %s\n", bus->name);
|
618 |
indent += 2;
|
619 |
qdev_printf("type %s\n", object_get_typename(OBJECT(bus)));
|
620 |
QTAILQ_FOREACH(kid, &bus->children, sibling) { |
621 |
DeviceState *dev = kid->child; |
622 |
qdev_print(mon, dev, indent); |
623 |
} |
624 |
} |
625 |
#undef qdev_printf
|
626 |
|
627 |
void do_info_qtree(Monitor *mon, const QDict *qdict) |
628 |
{ |
629 |
if (sysbus_get_default())
|
630 |
qbus_print(mon, sysbus_get_default(), 0);
|
631 |
} |
632 |
|
633 |
void do_info_qdm(Monitor *mon, const QDict *qdict) |
634 |
{ |
635 |
qdev_print_devinfos(true);
|
636 |
} |
637 |
|
638 |
int do_device_add(Monitor *mon, const QDict *qdict, QObject **ret_data) |
639 |
{ |
640 |
Error *local_err = NULL;
|
641 |
QemuOpts *opts; |
642 |
DeviceState *dev; |
643 |
|
644 |
opts = qemu_opts_from_qdict(qemu_find_opts("device"), qdict, &local_err);
|
645 |
if (error_is_set(&local_err)) {
|
646 |
qerror_report_err(local_err); |
647 |
error_free(local_err); |
648 |
return -1; |
649 |
} |
650 |
if (!monitor_cur_is_qmp() && qdev_device_help(opts)) {
|
651 |
qemu_opts_del(opts); |
652 |
return 0; |
653 |
} |
654 |
dev = qdev_device_add(opts); |
655 |
if (!dev) {
|
656 |
qemu_opts_del(opts); |
657 |
return -1; |
658 |
} |
659 |
object_unref(OBJECT(dev)); |
660 |
return 0; |
661 |
} |
662 |
|
663 |
void qmp_device_del(const char *id, Error **errp) |
664 |
{ |
665 |
DeviceState *dev; |
666 |
|
667 |
dev = qdev_find_recursive(sysbus_get_default(), id); |
668 |
if (NULL == dev) { |
669 |
error_set(errp, QERR_DEVICE_NOT_FOUND, id); |
670 |
return;
|
671 |
} |
672 |
|
673 |
qdev_unplug(dev, errp); |
674 |
} |
675 |
|
676 |
void qdev_machine_init(void) |
677 |
{ |
678 |
qdev_get_peripheral_anon(); |
679 |
qdev_get_peripheral(); |
680 |
} |
681 |
|
682 |
QemuOptsList qemu_device_opts = { |
683 |
.name = "device",
|
684 |
.implied_opt_name = "driver",
|
685 |
.head = QTAILQ_HEAD_INITIALIZER(qemu_device_opts.head), |
686 |
.desc = { |
687 |
/*
|
688 |
* no elements => accept any
|
689 |
* sanity checking will happen later
|
690 |
* when setting device properties
|
691 |
*/
|
692 |
{ /* end of list */ }
|
693 |
}, |
694 |
}; |
695 |
|
696 |
QemuOptsList qemu_global_opts = { |
697 |
.name = "global",
|
698 |
.head = QTAILQ_HEAD_INITIALIZER(qemu_global_opts.head), |
699 |
.desc = { |
700 |
{ |
701 |
.name = "driver",
|
702 |
.type = QEMU_OPT_STRING, |
703 |
},{ |
704 |
.name = "property",
|
705 |
.type = QEMU_OPT_STRING, |
706 |
},{ |
707 |
.name = "value",
|
708 |
.type = QEMU_OPT_STRING, |
709 |
}, |
710 |
{ /* end of list */ }
|
711 |
}, |
712 |
}; |
713 |
|
714 |
int qemu_global_option(const char *str) |
715 |
{ |
716 |
char driver[64], property[64]; |
717 |
QemuOpts *opts; |
718 |
int rc, offset;
|
719 |
|
720 |
rc = sscanf(str, "%63[^.].%63[^=]%n", driver, property, &offset);
|
721 |
if (rc < 2 || str[offset] != '=') { |
722 |
error_report("can't parse: \"%s\"", str);
|
723 |
return -1; |
724 |
} |
725 |
|
726 |
opts = qemu_opts_create_nofail(&qemu_global_opts); |
727 |
qemu_opt_set(opts, "driver", driver);
|
728 |
qemu_opt_set(opts, "property", property);
|
729 |
qemu_opt_set(opts, "value", str+offset+1); |
730 |
return 0; |
731 |
} |