[qemu.git] / hw / core / qdev-properties-system.c

/*
 * qdev property parsing and global properties
 * (parts specific for qemu-system-*)
 *
 * This file is based on code from hw/qdev-properties.c from
 * commit 074a86fccd185616469dfcdc0e157f438aebba18,
 * Copyright (c) Gerd Hoffmann <[email protected]> and other contributors.
 *
 * This work is licensed under the terms of the GNU GPL, version 2 or later.
 * See the COPYING file in the top-level directory.
 */

#include "qemu/osdep.h"
#include "net/net.h"
#include "hw/qdev.h"
#include "qapi/qmp/qerror.h"
#include "sysemu/block-backend.h"
#include "sysemu/blockdev.h"
#include "hw/block/block.h"
#include "net/hub.h"
#include "qapi/visitor.h"
#include "sysemu/char.h"
#include "sysemu/iothread.h"

static void get_pointer(Object *obj, Visitor *v, Property *prop,
                        char *(*print)(void *ptr),
                        const char *name, Error **errp)
{
    DeviceState *dev = DEVICE(obj);
    void **ptr = qdev_get_prop_ptr(dev, prop);
    char *p;

    p = *ptr ? print(*ptr) : g_strdup("");
    visit_type_str(v, name, &p, errp);
    g_free(p);
}

static void set_pointer(Object *obj, Visitor *v, Property *prop,
                        void (*parse)(DeviceState *dev, const char *str,
                                      void **ptr, const char *propname,
                                      Error **errp),
                        const char *name, Error **errp)
{
    DeviceState *dev = DEVICE(obj);
    Error *local_err = NULL;
    void **ptr = qdev_get_prop_ptr(dev, prop);
    char *str;

    if (dev->realized) {
        qdev_prop_set_after_realize(dev, name, errp);
        return;
    }

    visit_type_str(v, name, &str, &local_err);
    if (local_err) {
        error_propagate(errp, local_err);
        return;
    }
    if (!*str) {
        g_free(str);
        *ptr = NULL;
        return;
    }
    parse(dev, str, ptr, prop->name, errp);
    g_free(str);
}

/* --- drive --- */

static void parse_drive(DeviceState *dev, const char *str, void **ptr,
                        const char *propname, Error **errp)
{
    BlockBackend *blk;

    blk = blk_by_name(str);
    if (!blk) {
        error_setg(errp, "Property '%s.%s' can't find value '%s'",
                   object_get_typename(OBJECT(dev)), propname, str);
        return;
    }
    if (blk_attach_dev(blk, dev) < 0) {
        DriveInfo *dinfo = blk_legacy_dinfo(blk);

        if (dinfo->type != IF_NONE) {
            error_setg(errp, "Drive '%s' is already in use because "
                       "it has been automatically connected to another "
                       "device (did you need 'if=none' in the drive options?)",
                       str);
        } else {
            error_setg(errp, "Drive '%s' is already in use by another device",
                       str);
        }
        return;
    }
    *ptr = blk;
}

static void release_drive(Object *obj, const char *name, void *opaque)
{
    DeviceState *dev = DEVICE(obj);
    Property *prop = opaque;
    BlockBackend **ptr = qdev_get_prop_ptr(dev, prop);

    if (*ptr) {
        blk_detach_dev(*ptr, dev);
        blockdev_auto_del(*ptr);
    }
}

static char *print_drive(void *ptr)
{
    return g_strdup(blk_name(ptr));
}

static void get_drive(Object *obj, Visitor *v, const char *name, void *opaque,
                      Error **errp)
{
    get_pointer(obj, v, opaque, print_drive, name, errp);
}

static void set_drive(Object *obj, Visitor *v, const char *name, void *opaque,
                      Error **errp)
{
    set_pointer(obj, v, opaque, parse_drive, name, errp);
}

PropertyInfo qdev_prop_drive = {
    .name  = "str",
    .description = "ID of a drive to use as a backend",
    .get   = get_drive,
    .set   = set_drive,
    .release = release_drive,
};

/* --- character device --- */

static void parse_chr(DeviceState *dev, const char *str, void **ptr,
                      const char *propname, Error **errp)
{
    CharDriverState *chr = qemu_chr_find(str);
    if (chr == NULL) {
        error_setg(errp, "Property '%s.%s' can't find value '%s'",
                   object_get_typename(OBJECT(dev)), propname, str);
        return;
    }
    if (qemu_chr_fe_claim(chr) != 0) {
        error_setg(errp, "Property '%s.%s' can't take value '%s', it's in use",
                  object_get_typename(OBJECT(dev)), propname, str);
        return;
    }
    *ptr = chr;
}

static void release_chr(Object *obj, const char *name, void *opaque)
{
    DeviceState *dev = DEVICE(obj);
    Property *prop = opaque;
    CharDriverState **ptr = qdev_get_prop_ptr(dev, prop);
    CharDriverState *chr = *ptr;

    if (chr) {
        qemu_chr_add_handlers(chr, NULL, NULL, NULL, NULL);
        qemu_chr_fe_release(chr);
    }
}


static char *print_chr(void *ptr)
{
    CharDriverState *chr = ptr;
    const char *val = chr->label ? chr->label : "";

    return g_strdup(val);
}

static void get_chr(Object *obj, Visitor *v, const char *name, void *opaque,
                    Error **errp)
{
    get_pointer(obj, v, opaque, print_chr, name, errp);
}

static void set_chr(Object *obj, Visitor *v, const char *name, void *opaque,
                    Error **errp)
{
    set_pointer(obj, v, opaque, parse_chr, name, errp);
}

PropertyInfo qdev_prop_chr = {
    .name  = "str",
    .description = "ID of a chardev to use as a backend",
    .get   = get_chr,
    .set   = set_chr,
    .release = release_chr,
};

/* --- netdev device --- */
static void get_netdev(Object *obj, Visitor *v, const char *name,
                       void *opaque, Error **errp)
{
    DeviceState *dev = DEVICE(obj);
    Property *prop = opaque;
    NICPeers *peers_ptr = qdev_get_prop_ptr(dev, prop);
    char *p = g_strdup(peers_ptr->ncs[0] ? peers_ptr->ncs[0]->name : "");

    visit_type_str(v, name, &p, errp);
    g_free(p);
}

static void set_netdev(Object *obj, Visitor *v, const char *name,
                       void *opaque, Error **errp)
{
    DeviceState *dev = DEVICE(obj);
    Property *prop = opaque;
    NICPeers *peers_ptr = qdev_get_prop_ptr(dev, prop);
    NetClientState **ncs = peers_ptr->ncs;
    NetClientState *peers[MAX_QUEUE_NUM];
    Error *local_err = NULL;
    int queues, err = 0, i = 0;
    char *str;

    if (dev->realized) {
        qdev_prop_set_after_realize(dev, name, errp);
        return;
    }

    visit_type_str(v, name, &str, &local_err);
    if (local_err) {
        error_propagate(errp, local_err);
        return;
    }

    queues = qemu_find_net_clients_except(str, peers,
                                          NET_CLIENT_OPTIONS_KIND_NIC,
                                          MAX_QUEUE_NUM);
    if (queues == 0) {
        err = -ENOENT;
        goto out;
    }

    if (queues > MAX_QUEUE_NUM) {
        error_setg(errp, "queues of backend '%s'(%d) exceeds QEMU limitation(%d)",
                   str, queues, MAX_QUEUE_NUM);
        goto out;
    }

    for (i = 0; i < queues; i++) {
        if (peers[i] == NULL) {
            err = -ENOENT;
            goto out;
        }

        if (peers[i]->peer) {
            err = -EEXIST;
            goto out;
        }

        if (ncs[i]) {
            err = -EINVAL;
            goto out;
        }

        ncs[i] = peers[i];
        ncs[i]->queue_index = i;
    }

    peers_ptr->queues = queues;

out:
    error_set_from_qdev_prop_error(errp, err, dev, prop, str);
    g_free(str);
}

PropertyInfo qdev_prop_netdev = {
    .name  = "str",
    .description = "ID of a netdev to use as a backend",
    .get   = get_netdev,
    .set   = set_netdev,
};

/* --- vlan --- */

static int print_vlan(DeviceState *dev, Property *prop, char *dest, size_t len)
{
    NetClientState **ptr = qdev_get_prop_ptr(dev, prop);

    if (*ptr) {
        int id;
        if (!net_hub_id_for_client(*ptr, &id)) {
            return snprintf(dest, len, "%d", id);
        }
    }

    return snprintf(dest, len, "<null>");
}

static void get_vlan(Object *obj, Visitor *v, const char *name, void *opaque,
                     Error **errp)
{
    DeviceState *dev = DEVICE(obj);
    Property *prop = opaque;
    NetClientState **ptr = qdev_get_prop_ptr(dev, prop);
    int32_t id = -1;

    if (*ptr) {
        int hub_id;
        if (!net_hub_id_for_client(*ptr, &hub_id)) {
            id = hub_id;
        }
    }

    visit_type_int32(v, name, &id, errp);
}

static void set_vlan(Object *obj, Visitor *v, const char *name, void *opaque,
                     Error **errp)
{
    DeviceState *dev = DEVICE(obj);
    Property *prop = opaque;
    NICPeers *peers_ptr = qdev_get_prop_ptr(dev, prop);
    NetClientState **ptr = &peers_ptr->ncs[0];
    Error *local_err = NULL;
    int32_t id;
    NetClientState *hubport;

    if (dev->realized) {
        qdev_prop_set_after_realize(dev, name, errp);
        return;
    }

    visit_type_int32(v, name, &id, &local_err);
    if (local_err) {
        error_propagate(errp, local_err);
        return;
    }
    if (id == -1) {
        *ptr = NULL;
        return;
    }
    if (*ptr) {
        error_set_from_qdev_prop_error(errp, -EINVAL, dev, prop, name);
        return;
    }

    hubport = net_hub_port_find(id);
    if (!hubport) {
        error_setg(errp, QERR_INVALID_PARAMETER_VALUE,
                   name, prop->info->name);
        return;
    }
    *ptr = hubport;
}

PropertyInfo qdev_prop_vlan = {
    .name  = "int32",
    .description = "Integer VLAN id to connect to",
    .print = print_vlan,
    .get   = get_vlan,
    .set   = set_vlan,
};

void qdev_prop_set_drive(DeviceState *dev, const char *name,
                         BlockBackend *value, Error **errp)
{
    object_property_set_str(OBJECT(dev), value ? blk_name(value) : "",
                            name, errp);
}

void qdev_prop_set_chr(DeviceState *dev, const char *name,
                       CharDriverState *value)
{
    assert(!value || value->label);
    object_property_set_str(OBJECT(dev),
                            value ? value->label : "", name, &error_abort);
}

void qdev_prop_set_netdev(DeviceState *dev, const char *name,
                          NetClientState *value)
{
    assert(!value || value->name);
    object_property_set_str(OBJECT(dev),
                            value ? value->name : "", name, &error_abort);
}

void qdev_set_nic_properties(DeviceState *dev, NICInfo *nd)
{
    qdev_prop_set_macaddr(dev, "mac", nd->macaddr.a);
    if (nd->netdev) {
        qdev_prop_set_netdev(dev, "netdev", nd->netdev);
    }
    if (nd->nvectors != DEV_NVECTORS_UNSPECIFIED &&
        object_property_find(OBJECT(dev), "vectors", NULL)) {
        qdev_prop_set_uint32(dev, "vectors", nd->nvectors);
    }
    nd->instantiated = 1;
}

static int qdev_add_one_global(void *opaque, QemuOpts *opts, Error **errp)
{
    GlobalProperty *g;

    g = g_malloc0(sizeof(*g));
    g->driver   = qemu_opt_get(opts, "driver");
    g->property = qemu_opt_get(opts, "property");
    g->value    = qemu_opt_get(opts, "value");
    g->user_provided = true;
    qdev_prop_register_global(g);
    return 0;
}

void qemu_add_globals(void)
{
    qemu_opts_foreach(qemu_find_opts("global"),
                      qdev_add_one_global, NULL, NULL);
}
Commit	Line	Data
a404b612 EH	1	/*
	2	* qdev property parsing and global properties
	3	* (parts specific for qemu-system-*)
	4	*
	5	* This file is based on code from hw/qdev-properties.c from
	6	* commit 074a86fccd185616469dfcdc0e157f438aebba18,
	7	* Copyright (c) Gerd Hoffmann <[email protected]> and other contributors.
	8	*
	9	* This work is licensed under the terms of the GNU GPL, version 2 or later.
	10	* See the COPYING file in the top-level directory.
	11	*/
	12
18c86e2b	13	#include "qemu/osdep.h"
501a7ce7	14	#include "net/net.h"
83c9f4ca	15	#include "hw/qdev.h"
501a7ce7	16	#include "qapi/qmp/qerror.h"
4be74634	17	#include "sysemu/block-backend.h"
501a7ce7	18	#include "sysemu/blockdev.h"
0d09e41a	19	#include "hw/block/block.h"
a404b612	20	#include "net/hub.h"
501a7ce7	21	#include "qapi/visitor.h"
dccfcd0e	22	#include "sysemu/char.h"
6e4a876b	23	#include "sysemu/iothread.h"
a404b612 EH	24
a404b612 EH	25	static void get_pointer(Object obj, Visitor v, Property *prop,
7d1de464	26	char (print)(void *ptr),
a404b612 EH	27	const char name, Error *errp)
	28	{
	29	DeviceState *dev = DEVICE(obj);
	30	void **ptr = qdev_get_prop_ptr(dev, prop);
	31	char *p;
	32
7d1de464	33	p = ptr ? print(ptr) : g_strdup("");
51e72bc1	34	visit_type_str(v, name, &p, errp);
7d1de464	35	g_free(p);
a404b612 EH	36	}
	37
	38	static void set_pointer(Object obj, Visitor v, Property *prop,
f1fb9f0d PM	39	void (parse)(DeviceState dev, const char *str,
	40	void *ptr, const char propname,
	41	Error **errp),
a404b612 EH	42	const char name, Error *errp)
	43	{
	44	DeviceState *dev = DEVICE(obj);
	45	Error *local_err = NULL;
	46	void **ptr = qdev_get_prop_ptr(dev, prop);
	47	char *str;
a404b612	48
7983c8a3	49	if (dev->realized) {
b000dfbd	50	qdev_prop_set_after_realize(dev, name, errp);
a404b612 EH	51	return;
	52	}
	53
51e72bc1	54	visit_type_str(v, name, &str, &local_err);
a404b612 EH	55	if (local_err) {
	56	error_propagate(errp, local_err);
	57	return;
	58	}
	59	if (!*str) {
	60	g_free(str);
	61	*ptr = NULL;
	62	return;
	63	}
f1fb9f0d	64	parse(dev, str, ptr, prop->name, errp);
a404b612 EH	65	g_free(str);
	66	}
	67
	68	/* --- drive --- */
	69
f1fb9f0d PM	70	static void parse_drive(DeviceState dev, const char str, void **ptr,
f1fb9f0d PM	71	const char propname, Error *errp)
a404b612	72	{
4be74634	73	BlockBackend *blk;
a404b612	74
4be74634 MA	75	blk = blk_by_name(str);
4be74634 MA	76	if (!blk) {
f1fb9f0d PM	77	error_setg(errp, "Property '%s.%s' can't find value '%s'",
	78	object_get_typename(OBJECT(dev)), propname, str);
	79	return;
a404b612	80	}
4be74634	81	if (blk_attach_dev(blk, dev) < 0) {
62f7dbde PM	82	DriveInfo *dinfo = blk_legacy_dinfo(blk);
	83
	84	if (dinfo->type != IF_NONE) {
	85	error_setg(errp, "Drive '%s' is already in use because "
	86	"it has been automatically connected to another "
	87	"device (did you need 'if=none' in the drive options?)",
	88	str);
	89	} else {
	90	error_setg(errp, "Drive '%s' is already in use by another device",
	91	str);
	92	}
f1fb9f0d	93	return;
a404b612	94	}
4be74634	95	*ptr = blk;
a404b612 EH	96	}
	97
	98	static void release_drive(Object obj, const char name, void *opaque)
	99	{
	100	DeviceState *dev = DEVICE(obj);
	101	Property *prop = opaque;
4be74634	102	BlockBackend **ptr = qdev_get_prop_ptr(dev, prop);
a404b612 EH	103
a404b612 EH	104	if (*ptr) {
4be74634	105	blk_detach_dev(*ptr, dev);
a404b612 EH	106	blockdev_auto_del(*ptr);
	107	}
	108	}
	109
7d1de464	110	static char print_drive(void ptr)
a404b612	111	{
4be74634	112	return g_strdup(blk_name(ptr));
a404b612 EH	113	}
a404b612 EH	114
d7bce999 EB	115	static void get_drive(Object obj, Visitor v, const char name, void opaque,
d7bce999 EB	116	Error **errp)
a404b612 EH	117	{
	118	get_pointer(obj, v, opaque, print_drive, name, errp);
	119	}
	120
d7bce999 EB	121	static void set_drive(Object obj, Visitor v, const char name, void opaque,
d7bce999 EB	122	Error **errp)
a404b612 EH	123	{
	124	set_pointer(obj, v, opaque, parse_drive, name, errp);
	125	}
	126
	127	PropertyInfo qdev_prop_drive = {
85ca1202	128	.name = "str",
51b2e8c3	129	.description = "ID of a drive to use as a backend",
a404b612 EH	130	.get = get_drive,
	131	.set = set_drive,
	132	.release = release_drive,
	133	};
	134
	135	/* --- character device --- */
	136
f1fb9f0d PM	137	static void parse_chr(DeviceState dev, const char str, void **ptr,
f1fb9f0d PM	138	const char propname, Error *errp)
a404b612 EH	139	{
	140	CharDriverState *chr = qemu_chr_find(str);
	141	if (chr == NULL) {
f1fb9f0d PM	142	error_setg(errp, "Property '%s.%s' can't find value '%s'",
	143	object_get_typename(OBJECT(dev)), propname, str);
	144	return;
a404b612	145	}
44c473de	146	if (qemu_chr_fe_claim(chr) != 0) {
f1fb9f0d PM	147	error_setg(errp, "Property '%s.%s' can't take value '%s', it's in use",
	148	object_get_typename(OBJECT(dev)), propname, str);
	149	return;
a404b612 EH	150	}
a404b612 EH	151	*ptr = chr;
a404b612 EH	152	}
	153
	154	static void release_chr(Object obj, const char name, void *opaque)
	155	{
	156	DeviceState *dev = DEVICE(obj);
	157	Property *prop = opaque;
	158	CharDriverState **ptr = qdev_get_prop_ptr(dev, prop);
85d91e32	159	CharDriverState chr = ptr;
a404b612	160
85d91e32 HG	161	if (chr) {
85d91e32 HG	162	qemu_chr_add_handlers(chr, NULL, NULL, NULL, NULL);
44c473de	163	qemu_chr_fe_release(chr);
a404b612 EH	164	}
	165	}
	166
	167
7d1de464	168	static char print_chr(void ptr)
a404b612 EH	169	{
a404b612 EH	170	CharDriverState *chr = ptr;
7d1de464	171	const char *val = chr->label ? chr->label : "";
a404b612	172
7d1de464	173	return g_strdup(val);
a404b612 EH	174	}
a404b612 EH	175
d7bce999 EB	176	static void get_chr(Object obj, Visitor v, const char name, void opaque,
d7bce999 EB	177	Error **errp)
a404b612 EH	178	{
	179	get_pointer(obj, v, opaque, print_chr, name, errp);
	180	}
	181
d7bce999 EB	182	static void set_chr(Object obj, Visitor v, const char name, void opaque,
d7bce999 EB	183	Error **errp)
a404b612 EH	184	{
	185	set_pointer(obj, v, opaque, parse_chr, name, errp);
	186	}
	187
	188	PropertyInfo qdev_prop_chr = {
85ca1202	189	.name = "str",
51b2e8c3	190	.description = "ID of a chardev to use as a backend",
a404b612 EH	191	.get = get_chr,
	192	.set = set_chr,
	193	.release = release_chr,
	194	};
	195
	196	/* --- netdev device --- */
d7bce999 EB	197	static void get_netdev(Object obj, Visitor v, const char *name,
d7bce999 EB	198	void opaque, Error *errp)
23120b13 JW	199	{
	200	DeviceState *dev = DEVICE(obj);
	201	Property *prop = opaque;
	202	NICPeers *peers_ptr = qdev_get_prop_ptr(dev, prop);
	203	char *p = g_strdup(peers_ptr->ncs[0] ? peers_ptr->ncs[0]->name : "");
	204
51e72bc1	205	visit_type_str(v, name, &p, errp);
23120b13 JW	206	g_free(p);
23120b13 JW	207	}
a404b612	208
d7bce999 EB	209	static void set_netdev(Object obj, Visitor v, const char *name,
d7bce999 EB	210	void opaque, Error *errp)
a404b612	211	{
23120b13 JW	212	DeviceState *dev = DEVICE(obj);
	213	Property *prop = opaque;
	214	NICPeers *peers_ptr = qdev_get_prop_ptr(dev, prop);
1ceef9f2 JW	215	NetClientState **ncs = peers_ptr->ncs;
1ceef9f2 JW	216	NetClientState *peers[MAX_QUEUE_NUM];
23120b13 JW	217	Error *local_err = NULL;
	218	int queues, err = 0, i = 0;
	219	char *str;
	220
	221	if (dev->realized) {
	222	qdev_prop_set_after_realize(dev, name, errp);
	223	return;
	224	}
	225
51e72bc1	226	visit_type_str(v, name, &str, &local_err);
23120b13 JW	227	if (local_err) {
	228	error_propagate(errp, local_err);
	229	return;
	230	}
a404b612	231
1ceef9f2 JW	232	queues = qemu_find_net_clients_except(str, peers,
	233	NET_CLIENT_OPTIONS_KIND_NIC,
	234	MAX_QUEUE_NUM);
	235	if (queues == 0) {
23120b13 JW	236	err = -ENOENT;
23120b13 JW	237	goto out;
a404b612	238	}
1ceef9f2 JW	239
1ceef9f2 JW	240	if (queues > MAX_QUEUE_NUM) {
23120b13 JW	241	error_setg(errp, "queues of backend '%s'(%d) exceeds QEMU limitation(%d)",
	242	str, queues, MAX_QUEUE_NUM);
	243	goto out;
1ceef9f2 JW	244	}
	245
	246	for (i = 0; i < queues; i++) {
	247	if (peers[i] == NULL) {
23120b13 JW	248	err = -ENOENT;
23120b13 JW	249	goto out;
1ceef9f2 JW	250	}
	251
	252	if (peers[i]->peer) {
23120b13 JW	253	err = -EEXIST;
23120b13 JW	254	goto out;
1ceef9f2 JW	255	}
1ceef9f2 JW	256
30c367ed	257	if (ncs[i]) {
23120b13 JW	258	err = -EINVAL;
23120b13 JW	259	goto out;
30c367ed VY	260	}
30c367ed VY	261
1ceef9f2 JW	262	ncs[i] = peers[i];
1ceef9f2 JW	263	ncs[i]->queue_index = i;
a404b612	264	}
1ceef9f2	265
575a1c0e	266	peers_ptr->queues = queues;
1ceef9f2	267
23120b13 JW	268	out:
	269	error_set_from_qdev_prop_error(errp, err, dev, prop, str);
	270	g_free(str);
a404b612 EH	271	}
	272
	273	PropertyInfo qdev_prop_netdev = {
85ca1202	274	.name = "str",
51b2e8c3	275	.description = "ID of a netdev to use as a backend",
a404b612 EH	276	.get = get_netdev,
	277	.set = set_netdev,
	278	};
	279
	280	/* --- vlan --- */
	281
	282	static int print_vlan(DeviceState dev, Property prop, char *dest, size_t len)
	283	{
	284	NetClientState **ptr = qdev_get_prop_ptr(dev, prop);
	285
	286	if (*ptr) {
	287	int id;
	288	if (!net_hub_id_for_client(*ptr, &id)) {
	289	return snprintf(dest, len, "%d", id);
	290	}
	291	}
	292
	293	return snprintf(dest, len, "<null>");
	294	}
	295
d7bce999 EB	296	static void get_vlan(Object obj, Visitor v, const char name, void opaque,
d7bce999 EB	297	Error **errp)
a404b612 EH	298	{
	299	DeviceState *dev = DEVICE(obj);
	300	Property *prop = opaque;
	301	NetClientState **ptr = qdev_get_prop_ptr(dev, prop);
	302	int32_t id = -1;
	303
	304	if (*ptr) {
	305	int hub_id;
	306	if (!net_hub_id_for_client(*ptr, &hub_id)) {
	307	id = hub_id;
	308	}
	309	}
	310
51e72bc1	311	visit_type_int32(v, name, &id, errp);
a404b612 EH	312	}
a404b612 EH	313
d7bce999 EB	314	static void set_vlan(Object obj, Visitor v, const char name, void opaque,
d7bce999 EB	315	Error **errp)
a404b612 EH	316	{
	317	DeviceState *dev = DEVICE(obj);
	318	Property *prop = opaque;
1ceef9f2 JW	319	NICPeers *peers_ptr = qdev_get_prop_ptr(dev, prop);
1ceef9f2 JW	320	NetClientState **ptr = &peers_ptr->ncs[0];
a404b612 EH	321	Error *local_err = NULL;
	322	int32_t id;
	323	NetClientState *hubport;
	324
7983c8a3	325	if (dev->realized) {
b000dfbd	326	qdev_prop_set_after_realize(dev, name, errp);
a404b612 EH	327	return;
	328	}
	329
51e72bc1	330	visit_type_int32(v, name, &id, &local_err);
a404b612 EH	331	if (local_err) {
	332	error_propagate(errp, local_err);
	333	return;
	334	}
	335	if (id == -1) {
	336	*ptr = NULL;
	337	return;
	338	}
30c367ed VY	339	if (*ptr) {
	340	error_set_from_qdev_prop_error(errp, -EINVAL, dev, prop, name);
	341	return;
	342	}
a404b612 EH	343
	344	hubport = net_hub_port_find(id);
	345	if (!hubport) {
c6bd8c70 MA	346	error_setg(errp, QERR_INVALID_PARAMETER_VALUE,
c6bd8c70 MA	347	name, prop->info->name);
a404b612 EH	348	return;
	349	}
	350	*ptr = hubport;
	351	}
	352
	353	PropertyInfo qdev_prop_vlan = {
85ca1202	354	.name = "int32",
51b2e8c3	355	.description = "Integer VLAN id to connect to",
a404b612 EH	356	.print = print_vlan,
	357	.get = get_vlan,
	358	.set = set_vlan,
	359	};
	360
9b3d111a MA	361	void qdev_prop_set_drive(DeviceState dev, const char name,
9b3d111a MA	362	BlockBackend value, Error *errp)
a404b612	363	{
9b3d111a MA	364	object_property_set_str(OBJECT(dev), value ? blk_name(value) : "",
9b3d111a MA	365	name, errp);
a404b612 EH	366	}
a404b612 EH	367
a404b612 EH	368	void qdev_prop_set_chr(DeviceState dev, const char name,
	369	CharDriverState *value)
	370	{
a404b612 EH	371	assert(!value \|\| value->label);
a404b612 EH	372	object_property_set_str(OBJECT(dev),
5433a0a8	373	value ? value->label : "", name, &error_abort);
a404b612 EH	374	}
	375
	376	void qdev_prop_set_netdev(DeviceState dev, const char name,
	377	NetClientState *value)
	378	{
a404b612 EH	379	assert(!value \|\| value->name);
a404b612 EH	380	object_property_set_str(OBJECT(dev),
5433a0a8	381	value ? value->name : "", name, &error_abort);
a404b612 EH	382	}
	383
	384	void qdev_set_nic_properties(DeviceState dev, NICInfo nd)
	385	{
	386	qdev_prop_set_macaddr(dev, "mac", nd->macaddr.a);
	387	if (nd->netdev) {
	388	qdev_prop_set_netdev(dev, "netdev", nd->netdev);
	389	}
	390	if (nd->nvectors != DEV_NVECTORS_UNSPECIFIED &&
	391	object_property_find(OBJECT(dev), "vectors", NULL)) {
	392	qdev_prop_set_uint32(dev, "vectors", nd->nvectors);
	393	}
	394	nd->instantiated = 1;
	395	}
	396
28d0de7a	397	static int qdev_add_one_global(void opaque, QemuOpts opts, Error **errp)
a404b612 EH	398	{
	399	GlobalProperty *g;
	400
	401	g = g_malloc0(sizeof(*g));
	402	g->driver = qemu_opt_get(opts, "driver");
	403	g->property = qemu_opt_get(opts, "property");
	404	g->value = qemu_opt_get(opts, "value");
b3ce84fe	405	g->user_provided = true;
a404b612 EH	406	qdev_prop_register_global(g);
	407	return 0;
	408	}
	409
	410	void qemu_add_globals(void)
	411	{
28d0de7a MA	412	qemu_opts_foreach(qemu_find_opts("global"),
28d0de7a MA	413	qdev_add_one_global, NULL, NULL);
a404b612	414	}