[qemu.git] / qemu-config.c

#include "qemu-common.h"
#include "qemu-error.h"
#include "qemu-option.h"
#include "qemu-config.h"
#include "sysemu.h"
#include "hw/qdev.h"

QemuOptsList qemu_drive_opts = {
    .name = "drive",
    .head = QTAILQ_HEAD_INITIALIZER(qemu_drive_opts.head),
    .desc = {
        {
            .name = "bus",
            .type = QEMU_OPT_NUMBER,
            .help = "bus number",
        },{
            .name = "unit",
            .type = QEMU_OPT_NUMBER,
            .help = "unit number (i.e. lun for scsi)",
        },{
            .name = "if",
            .type = QEMU_OPT_STRING,
            .help = "interface (ide, scsi, sd, mtd, floppy, pflash, virtio)",
        },{
            .name = "index",
            .type = QEMU_OPT_NUMBER,
        },{
            .name = "cyls",
            .type = QEMU_OPT_NUMBER,
            .help = "number of cylinders (ide disk geometry)",
        },{
            .name = "heads",
            .type = QEMU_OPT_NUMBER,
            .help = "number of heads (ide disk geometry)",
        },{
            .name = "secs",
            .type = QEMU_OPT_NUMBER,
            .help = "number of sectors (ide disk geometry)",
        },{
            .name = "trans",
            .type = QEMU_OPT_STRING,
            .help = "chs translation (auto, lba. none)",
        },{
            .name = "media",
            .type = QEMU_OPT_STRING,
            .help = "media type (disk, cdrom)",
        },{
            .name = "snapshot",
            .type = QEMU_OPT_BOOL,
        },{
            .name = "file",
            .type = QEMU_OPT_STRING,
            .help = "disk image",
        },{
            .name = "cache",
            .type = QEMU_OPT_STRING,
            .help = "host cache usage (none, writeback, writethrough, unsafe)",
        },{
            .name = "aio",
            .type = QEMU_OPT_STRING,
            .help = "host AIO implementation (threads, native)",
        },{
            .name = "format",
            .type = QEMU_OPT_STRING,
            .help = "disk format (raw, qcow2, ...)",
        },{
            .name = "serial",
            .type = QEMU_OPT_STRING,
        },{
            .name = "rerror",
            .type = QEMU_OPT_STRING,
        },{
            .name = "werror",
            .type = QEMU_OPT_STRING,
        },{
            .name = "addr",
            .type = QEMU_OPT_STRING,
            .help = "pci address (virtio only)",
        },{
            .name = "readonly",
            .type = QEMU_OPT_BOOL,
        },
        { /* end if list */ }
    },
};

QemuOptsList qemu_chardev_opts = {
    .name = "chardev",
    .implied_opt_name = "backend",
    .head = QTAILQ_HEAD_INITIALIZER(qemu_chardev_opts.head),
    .desc = {
        {
            .name = "backend",
            .type = QEMU_OPT_STRING,
        },{
            .name = "path",
            .type = QEMU_OPT_STRING,
        },{
            .name = "host",
            .type = QEMU_OPT_STRING,
        },{
            .name = "port",
            .type = QEMU_OPT_STRING,
        },{
            .name = "localaddr",
            .type = QEMU_OPT_STRING,
        },{
            .name = "localport",
            .type = QEMU_OPT_STRING,
        },{
            .name = "to",
            .type = QEMU_OPT_NUMBER,
        },{
            .name = "ipv4",
            .type = QEMU_OPT_BOOL,
        },{
            .name = "ipv6",
            .type = QEMU_OPT_BOOL,
        },{
            .name = "wait",
            .type = QEMU_OPT_BOOL,
        },{
            .name = "server",
            .type = QEMU_OPT_BOOL,
        },{
            .name = "delay",
            .type = QEMU_OPT_BOOL,
        },{
            .name = "telnet",
            .type = QEMU_OPT_BOOL,
        },{
            .name = "width",
            .type = QEMU_OPT_NUMBER,
        },{
            .name = "height",
            .type = QEMU_OPT_NUMBER,
        },{
            .name = "cols",
            .type = QEMU_OPT_NUMBER,
        },{
            .name = "rows",
            .type = QEMU_OPT_NUMBER,
        },{
            .name = "mux",
            .type = QEMU_OPT_BOOL,
        },{
            .name = "signal",
            .type = QEMU_OPT_BOOL,
        },
        { /* end if list */ }
    },
};

#ifdef CONFIG_LINUX
QemuOptsList qemu_fsdev_opts = {
    .name = "fsdev",
    .implied_opt_name = "fstype",
    .head = QTAILQ_HEAD_INITIALIZER(qemu_fsdev_opts.head),
    .desc = {
        {
            .name = "fstype",
            .type = QEMU_OPT_STRING,
        }, {
            .name = "path",
            .type = QEMU_OPT_STRING,
        },
        { /*End of list */ }
    },
};
#endif

#ifdef CONFIG_LINUX
QemuOptsList qemu_virtfs_opts = {
    .name = "virtfs",
    .implied_opt_name = "fstype",
    .head = QTAILQ_HEAD_INITIALIZER(qemu_virtfs_opts.head),
    .desc = {
        {
            .name = "fstype",
            .type = QEMU_OPT_STRING,
        }, {
            .name = "path",
            .type = QEMU_OPT_STRING,
        }, {
            .name = "mount_tag",
            .type = QEMU_OPT_STRING,
        },

        { /*End of list */ }
    },
};
#endif

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 if list */ }
    },
};

QemuOptsList qemu_netdev_opts = {
    .name = "netdev",
    .implied_opt_name = "type",
    .head = QTAILQ_HEAD_INITIALIZER(qemu_netdev_opts.head),
    .desc = {
        /*
         * no elements => accept any params
         * validation will happen later
         */
        { /* end of list */ }
    },
};

QemuOptsList qemu_net_opts = {
    .name = "net",
    .implied_opt_name = "type",
    .head = QTAILQ_HEAD_INITIALIZER(qemu_net_opts.head),
    .desc = {
        /*
         * no elements => accept any params
         * validation will happen later
         */
        { /* end of list */ }
    },
};

QemuOptsList qemu_rtc_opts = {
    .name = "rtc",
    .head = QTAILQ_HEAD_INITIALIZER(qemu_rtc_opts.head),
    .desc = {
        {
            .name = "base",
            .type = QEMU_OPT_STRING,
        },{
            .name = "clock",
            .type = QEMU_OPT_STRING,
#ifdef TARGET_I386
        },{
            .name = "driftfix",
            .type = QEMU_OPT_STRING,
#endif
        },
        { /* end if 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 if list */ }
    },
};

QemuOptsList qemu_mon_opts = {
    .name = "mon",
    .implied_opt_name = "chardev",
    .head = QTAILQ_HEAD_INITIALIZER(qemu_mon_opts.head),
    .desc = {
        {
            .name = "mode",
            .type = QEMU_OPT_STRING,
        },{
            .name = "chardev",
            .type = QEMU_OPT_STRING,
        },{
            .name = "default",
            .type = QEMU_OPT_BOOL,
        },
        { /* end if list */ }
    },
};

QemuOptsList qemu_cpudef_opts = {
    .name = "cpudef",
    .head = QTAILQ_HEAD_INITIALIZER(qemu_cpudef_opts.head),
    .desc = {
        {
            .name = "name",
            .type = QEMU_OPT_STRING,
        },{
            .name = "level",
            .type = QEMU_OPT_NUMBER,
        },{
            .name = "vendor",
            .type = QEMU_OPT_STRING,
        },{
            .name = "family",
            .type = QEMU_OPT_NUMBER,
        },{
            .name = "model",
            .type = QEMU_OPT_NUMBER,
        },{
            .name = "stepping",
            .type = QEMU_OPT_NUMBER,
        },{
            .name = "feature_edx",      /* cpuid 0000_0001.edx */
            .type = QEMU_OPT_STRING,
        },{
            .name = "feature_ecx",      /* cpuid 0000_0001.ecx */
            .type = QEMU_OPT_STRING,
        },{
            .name = "extfeature_edx",   /* cpuid 8000_0001.edx */
            .type = QEMU_OPT_STRING,
        },{
            .name = "extfeature_ecx",   /* cpuid 8000_0001.ecx */
            .type = QEMU_OPT_STRING,
        },{
            .name = "xlevel",
            .type = QEMU_OPT_NUMBER,
        },{
            .name = "model_id",
            .type = QEMU_OPT_STRING,
        },{
            .name = "vendor_override",
            .type = QEMU_OPT_NUMBER,
        },
        { /* end of list */ }
    },
};

static QemuOptsList *vm_config_groups[] = {
    &qemu_drive_opts,
    &qemu_chardev_opts,
    &qemu_device_opts,
    &qemu_netdev_opts,
    &qemu_net_opts,
    &qemu_rtc_opts,
    &qemu_global_opts,
    &qemu_mon_opts,
    &qemu_cpudef_opts,
    NULL,
};

static QemuOptsList *find_list(QemuOptsList **lists, const char *group)
{
    int i;

    for (i = 0; lists[i] != NULL; i++) {
        if (strcmp(lists[i]->name, group) == 0)
            break;
    }
    if (lists[i] == NULL) {
        error_report("there is no option group \"%s\"", group);
    }
    return lists[i];
}

QemuOptsList *qemu_find_opts(const char *group)
{
    return find_list(vm_config_groups, group);
}

int qemu_set_option(const char *str)
{
    char group[64], id[64], arg[64];
    QemuOptsList *list;
    QemuOpts *opts;
    int rc, offset;

    rc = sscanf(str, "%63[^.].%63[^.].%63[^=]%n", group, id, arg, &offset);
    if (rc < 3 || str[offset] != '=') {
        error_report("can't parse: \"%s\"", str);
        return -1;
    }

    list = qemu_find_opts(group);
    if (list == NULL) {
        return -1;
    }

    opts = qemu_opts_find(list, id);
    if (!opts) {
        error_report("there is no %s \"%s\" defined",
                     list->name, id);
        return -1;
    }

    if (qemu_opt_set(opts, arg, str+offset+1) == -1) {
        return -1;
    }
    return 0;
}

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] != '=') {
        error_report("can't parse: \"%s\"", str);
        return -1;
    }

    opts = qemu_opts_create(&qemu_global_opts, NULL, 0);
    qemu_opt_set(opts, "driver", driver);
    qemu_opt_set(opts, "property", property);
    qemu_opt_set(opts, "value", str+offset+1);
    return 0;
}

struct ConfigWriteData {
    QemuOptsList *list;
    FILE *fp;
};

static int config_write_opt(const char *name, const char *value, void *opaque)
{
    struct ConfigWriteData *data = opaque;

    fprintf(data->fp, "  %s = \"%s\"\n", name, value);
    return 0;
}

static int config_write_opts(QemuOpts *opts, void *opaque)
{
    struct ConfigWriteData *data = opaque;
    const char *id = qemu_opts_id(opts);

    if (id) {
        fprintf(data->fp, "[%s \"%s\"]\n", data->list->name, id);
    } else {
        fprintf(data->fp, "[%s]\n", data->list->name);
    }
    qemu_opt_foreach(opts, config_write_opt, data, 0);
    fprintf(data->fp, "\n");
    return 0;
}

void qemu_config_write(FILE *fp)
{
    struct ConfigWriteData data = { .fp = fp };
    QemuOptsList **lists = vm_config_groups;
    int i;

    fprintf(fp, "# qemu config file\n\n");
    for (i = 0; lists[i] != NULL; i++) {
        data.list = lists[i];
        qemu_opts_foreach(data.list, config_write_opts, &data, 0);
    }
}

int qemu_config_parse(FILE *fp, QemuOptsList **lists, const char *fname)
{
    char line[1024], group[64], id[64], arg[64], value[1024];
    Location loc;
    QemuOptsList *list = NULL;
    QemuOpts *opts = NULL;
    int res = -1, lno = 0;

    loc_push_none(&loc);
    while (fgets(line, sizeof(line), fp) != NULL) {
        loc_set_file(fname, ++lno);
        if (line[0] == '\n') {
            /* skip empty lines */
            continue;
        }
        if (line[0] == '#') {
            /* comment */
            continue;
        }
        if (sscanf(line, "[%63s \"%63[^\"]\"]", group, id) == 2) {
            /* group with id */
            list = find_list(lists, group);
            if (list == NULL)
                goto out;
            opts = qemu_opts_create(list, id, 1);
            continue;
        }
        if (sscanf(line, "[%63[^]]]", group) == 1) {
            /* group without id */
            list = find_list(lists, group);
            if (list == NULL)
                goto out;
            opts = qemu_opts_create(list, NULL, 0);
            continue;
        }
        if (sscanf(line, " %63s = \"%1023[^\"]\"", arg, value) == 2) {
            /* arg = value */
            if (opts == NULL) {
                error_report("no group defined");
                goto out;
            }
            if (qemu_opt_set(opts, arg, value) != 0) {
                goto out;
            }
            continue;
        }
        error_report("parse error");
        goto out;
    }
    if (ferror(fp)) {
        error_report("error reading file");
        goto out;
    }
    res = 0;
out:
    loc_pop(&loc);
    return res;
}

int qemu_read_config_file(const char *filename)
{
    FILE *f = fopen(filename, "r");
    int ret;

    if (f == NULL) {
        return -errno;
    }

    ret = qemu_config_parse(f, vm_config_groups, filename);
    fclose(f);

    if (ret == 0) {
        return 0;
    } else {
        return -EINVAL;
    }
}
Commit	Line	Data
7282a033	1	#include "qemu-common.h"
2f792016	2	#include "qemu-error.h"
7282a033 GH	3	#include "qemu-option.h"
7282a033 GH	4	#include "qemu-config.h"
a861c453	5	#include "sysemu.h"
d0fef6fb	6	#include "hw/qdev.h"
7282a033 GH	7
	8	QemuOptsList qemu_drive_opts = {
	9	.name = "drive",
72cf2d4f	10	.head = QTAILQ_HEAD_INITIALIZER(qemu_drive_opts.head),
7282a033 GH	11	.desc = {
	12	{
	13	.name = "bus",
	14	.type = QEMU_OPT_NUMBER,
	15	.help = "bus number",
	16	},{
	17	.name = "unit",
	18	.type = QEMU_OPT_NUMBER,
	19	.help = "unit number (i.e. lun for scsi)",
	20	},{
	21	.name = "if",
	22	.type = QEMU_OPT_STRING,
	23	.help = "interface (ide, scsi, sd, mtd, floppy, pflash, virtio)",
	24	},{
	25	.name = "index",
	26	.type = QEMU_OPT_NUMBER,
	27	},{
	28	.name = "cyls",
	29	.type = QEMU_OPT_NUMBER,
	30	.help = "number of cylinders (ide disk geometry)",
	31	},{
	32	.name = "heads",
	33	.type = QEMU_OPT_NUMBER,
	34	.help = "number of heads (ide disk geometry)",
	35	},{
	36	.name = "secs",
	37	.type = QEMU_OPT_NUMBER,
	38	.help = "number of sectors (ide disk geometry)",
	39	},{
	40	.name = "trans",
	41	.type = QEMU_OPT_STRING,
	42	.help = "chs translation (auto, lba. none)",
	43	},{
	44	.name = "media",
	45	.type = QEMU_OPT_STRING,
	46	.help = "media type (disk, cdrom)",
	47	},{
	48	.name = "snapshot",
	49	.type = QEMU_OPT_BOOL,
	50	},{
	51	.name = "file",
	52	.type = QEMU_OPT_STRING,
	53	.help = "disk image",
	54	},{
	55	.name = "cache",
	56	.type = QEMU_OPT_STRING,
016f5cf6	57	.help = "host cache usage (none, writeback, writethrough, unsafe)",
5c6c3a6c CH	58	},{
	59	.name = "aio",
	60	.type = QEMU_OPT_STRING,
	61	.help = "host AIO implementation (threads, native)",
7282a033 GH	62	},{
	63	.name = "format",
	64	.type = QEMU_OPT_STRING,
	65	.help = "disk format (raw, qcow2, ...)",
	66	},{
	67	.name = "serial",
	68	.type = QEMU_OPT_STRING,
e9b2e818 KW	69	},{
	70	.name = "rerror",
	71	.type = QEMU_OPT_STRING,
7282a033 GH	72	},{
	73	.name = "werror",
	74	.type = QEMU_OPT_STRING,
	75	},{
	76	.name = "addr",
	77	.type = QEMU_OPT_STRING,
	78	.help = "pci address (virtio only)",
59f2689d NS	79	},{
	80	.name = "readonly",
	81	.type = QEMU_OPT_BOOL,
7282a033 GH	82	},
	83	{ /* end if list */ }
	84	},
	85	};
	86
191bc01b GH	87	QemuOptsList qemu_chardev_opts = {
191bc01b GH	88	.name = "chardev",
8212c64f	89	.implied_opt_name = "backend",
72cf2d4f	90	.head = QTAILQ_HEAD_INITIALIZER(qemu_chardev_opts.head),
191bc01b	91	.desc = {
7d31544f GH	92	{
	93	.name = "backend",
	94	.type = QEMU_OPT_STRING,
	95	},{
	96	.name = "path",
	97	.type = QEMU_OPT_STRING,
aeb2c47a GH	98	},{
	99	.name = "host",
	100	.type = QEMU_OPT_STRING,
	101	},{
	102	.name = "port",
	103	.type = QEMU_OPT_STRING,
7e1b35b4 GH	104	},{
	105	.name = "localaddr",
	106	.type = QEMU_OPT_STRING,
	107	},{
	108	.name = "localport",
	109	.type = QEMU_OPT_STRING,
aeb2c47a GH	110	},{
	111	.name = "to",
	112	.type = QEMU_OPT_NUMBER,
	113	},{
	114	.name = "ipv4",
	115	.type = QEMU_OPT_BOOL,
	116	},{
	117	.name = "ipv6",
	118	.type = QEMU_OPT_BOOL,
	119	},{
	120	.name = "wait",
	121	.type = QEMU_OPT_BOOL,
	122	},{
	123	.name = "server",
	124	.type = QEMU_OPT_BOOL,
	125	},{
	126	.name = "delay",
	127	.type = QEMU_OPT_BOOL,
	128	},{
	129	.name = "telnet",
	130	.type = QEMU_OPT_BOOL,
6ea314d9 GH	131	},{
	132	.name = "width",
	133	.type = QEMU_OPT_NUMBER,
	134	},{
	135	.name = "height",
	136	.type = QEMU_OPT_NUMBER,
	137	},{
	138	.name = "cols",
	139	.type = QEMU_OPT_NUMBER,
	140	},{
	141	.name = "rows",
	142	.type = QEMU_OPT_NUMBER,
c845f401 GH	143	},{
	144	.name = "mux",
	145	.type = QEMU_OPT_BOOL,
5989020b KK	146	},{
	147	.name = "signal",
	148	.type = QEMU_OPT_BOOL,
7d31544f	149	},
191bc01b GH	150	{ /* end if list */ }
	151	},
	152	};
	153
74db920c GS	154	#ifdef CONFIG_LINUX
	155	QemuOptsList qemu_fsdev_opts = {
	156	.name = "fsdev",
	157	.implied_opt_name = "fstype",
	158	.head = QTAILQ_HEAD_INITIALIZER(qemu_fsdev_opts.head),
	159	.desc = {
	160	{
	161	.name = "fstype",
	162	.type = QEMU_OPT_STRING,
	163	}, {
	164	.name = "path",
	165	.type = QEMU_OPT_STRING,
	166	},
	167	{ /End of list / }
	168	},
	169	};
	170	#endif
	171
3d54abc7 GS	172	#ifdef CONFIG_LINUX
	173	QemuOptsList qemu_virtfs_opts = {
	174	.name = "virtfs",
	175	.implied_opt_name = "fstype",
	176	.head = QTAILQ_HEAD_INITIALIZER(qemu_virtfs_opts.head),
	177	.desc = {
	178	{
	179	.name = "fstype",
	180	.type = QEMU_OPT_STRING,
	181	}, {
	182	.name = "path",
	183	.type = QEMU_OPT_STRING,
	184	}, {
	185	.name = "mount_tag",
	186	.type = QEMU_OPT_STRING,
	187	},
	188
	189	{ /End of list / }
	190	},
	191	};
	192	#endif
	193
f31d07d1 GH	194	QemuOptsList qemu_device_opts = {
f31d07d1 GH	195	.name = "device",
8212c64f	196	.implied_opt_name = "driver",
72cf2d4f	197	.head = QTAILQ_HEAD_INITIALIZER(qemu_device_opts.head),
f31d07d1 GH	198	.desc = {
	199	/*
	200	* no elements => accept any
	201	* sanity checking will happen later
	202	* when setting device properties
	203	*/
	204	{ /* end if list */ }
	205	},
	206	};
	207
a1ea458f MM	208	QemuOptsList qemu_netdev_opts = {
a1ea458f MM	209	.name = "netdev",
8212c64f	210	.implied_opt_name = "type",
a1ea458f MM	211	.head = QTAILQ_HEAD_INITIALIZER(qemu_netdev_opts.head),
	212	.desc = {
	213	/*
	214	* no elements => accept any params
	215	* validation will happen later
	216	*/
	217	{ /* end of list */ }
	218	},
	219	};
	220
8119b33d MM	221	QemuOptsList qemu_net_opts = {
8119b33d MM	222	.name = "net",
8212c64f	223	.implied_opt_name = "type",
8119b33d MM	224	.head = QTAILQ_HEAD_INITIALIZER(qemu_net_opts.head),
	225	.desc = {
	226	/*
	227	* no elements => accept any params
	228	* validation will happen later
	229	*/
	230	{ /* end of list */ }
	231	},
	232	};
	233
1ed2fc1f JK	234	QemuOptsList qemu_rtc_opts = {
	235	.name = "rtc",
	236	.head = QTAILQ_HEAD_INITIALIZER(qemu_rtc_opts.head),
	237	.desc = {
	238	{
	239	.name = "base",
	240	.type = QEMU_OPT_STRING,
6875204c JK	241	},{
	242	.name = "clock",
	243	.type = QEMU_OPT_STRING,
1ed2fc1f JK	244	#ifdef TARGET_I386
	245	},{
	246	.name = "driftfix",
	247	.type = QEMU_OPT_STRING,
	248	#endif
	249	},
	250	{ /* end if list */ }
	251	},
	252	};
	253
d0fef6fb GH	254	QemuOptsList qemu_global_opts = {
	255	.name = "global",
	256	.head = QTAILQ_HEAD_INITIALIZER(qemu_global_opts.head),
	257	.desc = {
	258	{
	259	.name = "driver",
	260	.type = QEMU_OPT_STRING,
	261	},{
	262	.name = "property",
	263	.type = QEMU_OPT_STRING,
	264	},{
	265	.name = "value",
	266	.type = QEMU_OPT_STRING,
	267	},
	268	{ /* end if list */ }
	269	},
	270	};
	271
88589343 GH	272	QemuOptsList qemu_mon_opts = {
88589343 GH	273	.name = "mon",
8212c64f	274	.implied_opt_name = "chardev",
88589343 GH	275	.head = QTAILQ_HEAD_INITIALIZER(qemu_mon_opts.head),
	276	.desc = {
	277	{
	278	.name = "mode",
	279	.type = QEMU_OPT_STRING,
	280	},{
	281	.name = "chardev",
	282	.type = QEMU_OPT_STRING,
	283	},{
	284	.name = "default",
	285	.type = QEMU_OPT_BOOL,
	286	},
	287	{ /* end if list */ }
	288	},
	289	};
	290
b5ec5ce0	291	QemuOptsList qemu_cpudef_opts = {
	292	.name = "cpudef",
	293	.head = QTAILQ_HEAD_INITIALIZER(qemu_cpudef_opts.head),
	294	.desc = {
	295	{
	296	.name = "name",
	297	.type = QEMU_OPT_STRING,
	298	},{
	299	.name = "level",
	300	.type = QEMU_OPT_NUMBER,
	301	},{
	302	.name = "vendor",
	303	.type = QEMU_OPT_STRING,
	304	},{
	305	.name = "family",
	306	.type = QEMU_OPT_NUMBER,
	307	},{
	308	.name = "model",
	309	.type = QEMU_OPT_NUMBER,
	310	},{
	311	.name = "stepping",
	312	.type = QEMU_OPT_NUMBER,
	313	},{
	314	.name = "feature_edx", /* cpuid 0000_0001.edx */
	315	.type = QEMU_OPT_STRING,
	316	},{
	317	.name = "feature_ecx", /* cpuid 0000_0001.ecx */
	318	.type = QEMU_OPT_STRING,
	319	},{
	320	.name = "extfeature_edx", /* cpuid 8000_0001.edx */
	321	.type = QEMU_OPT_STRING,
	322	},{
	323	.name = "extfeature_ecx", /* cpuid 8000_0001.ecx */
	324	.type = QEMU_OPT_STRING,
	325	},{
	326	.name = "xlevel",
	327	.type = QEMU_OPT_NUMBER,
	328	},{
	329	.name = "model_id",
	330	.type = QEMU_OPT_STRING,
	331	},{
	332	.name = "vendor_override",
	333	.type = QEMU_OPT_NUMBER,
	334	},
	335	{ /* end of list */ }
	336	},
	337	};
	338
490b648e	339	static QemuOptsList *vm_config_groups[] = {
d058fe03	340	&qemu_drive_opts,
191bc01b	341	&qemu_chardev_opts,
f31d07d1	342	&qemu_device_opts,
a1ea458f	343	&qemu_netdev_opts,
8119b33d	344	&qemu_net_opts,
5fdfbf7e	345	&qemu_rtc_opts,
d0fef6fb	346	&qemu_global_opts,
88589343	347	&qemu_mon_opts,
b5ec5ce0	348	&qemu_cpudef_opts,
d058fe03 GH	349	NULL,
	350	};
	351
490b648e	352	static QemuOptsList find_list(QemuOptsList lists, const char group)
ddc97855 GH	353	{
	354	int i;
	355
	356	for (i = 0; lists[i] != NULL; i++) {
	357	if (strcmp(lists[i]->name, group) == 0)
	358	break;
	359	}
	360	if (lists[i] == NULL) {
1ecda02b	361	error_report("there is no option group \"%s\"", group);
ddc97855 GH	362	}
	363	return lists[i];
	364	}
	365
490b648e KW	366	QemuOptsList qemu_find_opts(const char group)
	367	{
	368	return find_list(vm_config_groups, group);
	369	}
	370
d058fe03 GH	371	int qemu_set_option(const char *str)
	372	{
	373	char group[64], id[64], arg[64];
ddc97855	374	QemuOptsList *list;
d058fe03	375	QemuOpts *opts;
ddc97855	376	int rc, offset;
d058fe03 GH	377
	378	rc = sscanf(str, "%63[^.].%63[^.].%63[^=]%n", group, id, arg, &offset);
	379	if (rc < 3 \|\| str[offset] != '=') {
1ecda02b	380	error_report("can't parse: \"%s\"", str);
d058fe03 GH	381	return -1;
	382	}
	383
304329ee	384	list = qemu_find_opts(group);
ddc97855	385	if (list == NULL) {
d058fe03 GH	386	return -1;
	387	}
	388
ddc97855	389	opts = qemu_opts_find(list, id);
d058fe03	390	if (!opts) {
1ecda02b MA	391	error_report("there is no %s \"%s\" defined",
1ecda02b MA	392	list->name, id);
d058fe03 GH	393	return -1;
	394	}
	395
3df04ac3	396	if (qemu_opt_set(opts, arg, str+offset+1) == -1) {
d058fe03 GH	397	return -1;
	398	}
	399	return 0;
	400	}
	401
d0fef6fb GH	402	int qemu_global_option(const char *str)
	403	{
	404	char driver[64], property[64];
	405	QemuOpts *opts;
	406	int rc, offset;
	407
	408	rc = sscanf(str, "%63[^.].%63[^=]%n", driver, property, &offset);
	409	if (rc < 2 \|\| str[offset] != '=') {
1ecda02b	410	error_report("can't parse: \"%s\"", str);
d0fef6fb GH	411	return -1;
	412	}
	413
	414	opts = qemu_opts_create(&qemu_global_opts, NULL, 0);
	415	qemu_opt_set(opts, "driver", driver);
	416	qemu_opt_set(opts, "property", property);
	417	qemu_opt_set(opts, "value", str+offset+1);
	418	return 0;
	419	}
	420
9d993394 GH	421	struct ConfigWriteData {
	422	QemuOptsList *list;
	423	FILE *fp;
	424	};
	425
	426	static int config_write_opt(const char name, const char value, void *opaque)
	427	{
	428	struct ConfigWriteData *data = opaque;
	429
	430	fprintf(data->fp, " %s = \"%s\"\n", name, value);
	431	return 0;
	432	}
	433
	434	static int config_write_opts(QemuOpts opts, void opaque)
	435	{
	436	struct ConfigWriteData *data = opaque;
	437	const char *id = qemu_opts_id(opts);
	438
	439	if (id) {
	440	fprintf(data->fp, "[%s \"%s\"]\n", data->list->name, id);
	441	} else {
	442	fprintf(data->fp, "[%s]\n", data->list->name);
	443	}
	444	qemu_opt_foreach(opts, config_write_opt, data, 0);
	445	fprintf(data->fp, "\n");
	446	return 0;
	447	}
	448
	449	void qemu_config_write(FILE *fp)
	450	{
	451	struct ConfigWriteData data = { .fp = fp };
490b648e	452	QemuOptsList **lists = vm_config_groups;
9d993394 GH	453	int i;
	454
	455	fprintf(fp, "# qemu config file\n\n");
	456	for (i = 0; lists[i] != NULL; i++) {
	457	data.list = lists[i];
	458	qemu_opts_foreach(data.list, config_write_opts, &data, 0);
	459	}
	460	}
42262ba8	461
490b648e	462	int qemu_config_parse(FILE fp, QemuOptsList lists, const char fname)
42262ba8 GH	463	{
42262ba8 GH	464	char line[1024], group[64], id[64], arg[64], value[1024];
cf5a65aa	465	Location loc;
42262ba8 GH	466	QemuOptsList *list = NULL;
42262ba8 GH	467	QemuOpts *opts = NULL;
cf5a65aa	468	int res = -1, lno = 0;
42262ba8	469
cf5a65aa	470	loc_push_none(&loc);
42262ba8	471	while (fgets(line, sizeof(line), fp) != NULL) {
cf5a65aa	472	loc_set_file(fname, ++lno);
42262ba8 GH	473	if (line[0] == '\n') {
	474	/* skip empty lines */
	475	continue;
	476	}
	477	if (line[0] == '#') {
	478	/* comment */
	479	continue;
	480	}
	481	if (sscanf(line, "[%63s \"%63[^\"]\"]", group, id) == 2) {
	482	/* group with id */
490b648e	483	list = find_list(lists, group);
42262ba8	484	if (list == NULL)
cf5a65aa	485	goto out;
42262ba8 GH	486	opts = qemu_opts_create(list, id, 1);
	487	continue;
	488	}
	489	if (sscanf(line, "[%63[^]]]", group) == 1) {
	490	/* group without id */
490b648e	491	list = find_list(lists, group);
42262ba8	492	if (list == NULL)
cf5a65aa	493	goto out;
42262ba8 GH	494	opts = qemu_opts_create(list, NULL, 0);
	495	continue;
	496	}
	497	if (sscanf(line, " %63s = \"%1023[^\"]\"", arg, value) == 2) {
	498	/* arg = value */
	499	if (opts == NULL) {
cf5a65aa MA	500	error_report("no group defined");
cf5a65aa MA	501	goto out;
42262ba8 GH	502	}
42262ba8 GH	503	if (qemu_opt_set(opts, arg, value) != 0) {
cf5a65aa	504	goto out;
42262ba8 GH	505	}
	506	continue;
	507	}
cf5a65aa MA	508	error_report("parse error");
cf5a65aa MA	509	goto out;
42262ba8	510	}
ef82516d MA	511	if (ferror(fp)) {
	512	error_report("error reading file");
	513	goto out;
	514	}
cf5a65aa MA	515	res = 0;
	516	out:
	517	loc_pop(&loc);
	518	return res;
42262ba8	519	}
dcfb0939 KW	520
	521	int qemu_read_config_file(const char *filename)
	522	{
	523	FILE *f = fopen(filename, "r");
019e78ba KW	524	int ret;
019e78ba KW	525
dcfb0939 KW	526	if (f == NULL) {
	527	return -errno;
	528	}
	529
019e78ba	530	ret = qemu_config_parse(f, vm_config_groups, filename);
dcfb0939 KW	531	fclose(f);
dcfb0939 KW	532
019e78ba KW	533	if (ret == 0) {
	534	return 0;
	535	} else {
	536	return -EINVAL;
	537	}
dcfb0939	538	}