[qemu.git] / qemu-config.c

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

static 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,
            .help = "index 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,
            .help = "enable/disable snapshot mode",
        },{
            .name = "file",
            .type = QEMU_OPT_STRING,
            .help = "disk image",
        },{
            .name = "cache",
            .type = QEMU_OPT_STRING,
            .help = "host cache usage (none, writeback, writethrough, "
                    "directsync, 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,
            .help = "disk serial number",
        },{
            .name = "rerror",
            .type = QEMU_OPT_STRING,
            .help = "read error action",
        },{
            .name = "werror",
            .type = QEMU_OPT_STRING,
            .help = "write error action",
        },{
            .name = "addr",
            .type = QEMU_OPT_STRING,
            .help = "pci address (virtio only)",
        },{
            .name = "readonly",
            .type = QEMU_OPT_BOOL,
            .help = "open drive file as read-only",
        },{
            .name = "iops",
            .type = QEMU_OPT_NUMBER,
            .help = "limit total I/O operations per second",
        },{
            .name = "iops_rd",
            .type = QEMU_OPT_NUMBER,
            .help = "limit read operations per second",
        },{
            .name = "iops_wr",
            .type = QEMU_OPT_NUMBER,
            .help = "limit write operations per second",
        },{
            .name = "bps",
            .type = QEMU_OPT_NUMBER,
            .help = "limit total bytes per second",
        },{
            .name = "bps_rd",
            .type = QEMU_OPT_NUMBER,
            .help = "limit read bytes per second",
        },{
            .name = "bps_wr",
            .type = QEMU_OPT_NUMBER,
            .help = "limit write bytes per second",
        },{
            .name = "copy-on-read",
            .type = QEMU_OPT_BOOL,
            .help = "copy read data from backing file into image file",
        },
        { /* end of list */ }
    },
};

static 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,
        },{
            .name = "name",
            .type = QEMU_OPT_STRING,
        },{
            .name = "debug",
            .type = QEMU_OPT_NUMBER,
        },
        { /* end of list */ }
    },
};

QemuOptsList qemu_fsdev_opts = {
    .name = "fsdev",
    .implied_opt_name = "fsdriver",
    .head = QTAILQ_HEAD_INITIALIZER(qemu_fsdev_opts.head),
    .desc = {
        {
            .name = "fsdriver",
            .type = QEMU_OPT_STRING,
        }, {
            .name = "path",
            .type = QEMU_OPT_STRING,
        }, {
            .name = "security_model",
            .type = QEMU_OPT_STRING,
        }, {
            .name = "writeout",
            .type = QEMU_OPT_STRING,
        }, {
            .name = "readonly",
            .type = QEMU_OPT_BOOL,

        }, {
            .name = "socket",
            .type = QEMU_OPT_STRING,
        }, {
            .name = "sock_fd",
            .type = QEMU_OPT_NUMBER,
        },

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

QemuOptsList qemu_virtfs_opts = {
    .name = "virtfs",
    .implied_opt_name = "fsdriver",
    .head = QTAILQ_HEAD_INITIALIZER(qemu_virtfs_opts.head),
    .desc = {
        {
            .name = "fsdriver",
            .type = QEMU_OPT_STRING,
        }, {
            .name = "path",
            .type = QEMU_OPT_STRING,
        }, {
            .name = "mount_tag",
            .type = QEMU_OPT_STRING,
        }, {
            .name = "security_model",
            .type = QEMU_OPT_STRING,
        }, {
            .name = "writeout",
            .type = QEMU_OPT_STRING,
        }, {
            .name = "readonly",
            .type = QEMU_OPT_BOOL,
        }, {
            .name = "socket",
            .type = QEMU_OPT_STRING,
        }, {
            .name = "sock_fd",
            .type = QEMU_OPT_NUMBER,
        },

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

static 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 */ }
    },
};

static 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 */ }
    },
};

static 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 */ }
    },
};

static 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,
        },{
            .name = "driftfix",
            .type = QEMU_OPT_STRING,
        },
        { /* end of list */ }
    },
};

static 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 */ }
    },
};

static 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,
        },{
            .name = "pretty",
            .type = QEMU_OPT_BOOL,
        },
        { /* end of list */ }
    },
};

static QemuOptsList qemu_trace_opts = {
    .name = "trace",
    .implied_opt_name = "trace",
    .head = QTAILQ_HEAD_INITIALIZER(qemu_trace_opts.head),
    .desc = {
        {
            .name = "events",
            .type = QEMU_OPT_STRING,
        },{
            .name = "file",
            .type = QEMU_OPT_STRING,
        },
        { /* end of list */ }
    },
};

static 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 */ }
    },
};

QemuOptsList qemu_spice_opts = {
    .name = "spice",
    .head = QTAILQ_HEAD_INITIALIZER(qemu_spice_opts.head),
    .desc = {
        {
            .name = "port",
            .type = QEMU_OPT_NUMBER,
        },{
            .name = "tls-port",
            .type = QEMU_OPT_NUMBER,
        },{
            .name = "addr",
            .type = QEMU_OPT_STRING,
        },{
            .name = "ipv4",
            .type = QEMU_OPT_BOOL,
        },{
            .name = "ipv6",
            .type = QEMU_OPT_BOOL,
        },{
            .name = "password",
            .type = QEMU_OPT_STRING,
        },{
            .name = "disable-ticketing",
            .type = QEMU_OPT_BOOL,
        },{
            .name = "disable-copy-paste",
            .type = QEMU_OPT_BOOL,
        },{
            .name = "sasl",
            .type = QEMU_OPT_BOOL,
        },{
            .name = "x509-dir",
            .type = QEMU_OPT_STRING,
        },{
            .name = "x509-key-file",
            .type = QEMU_OPT_STRING,
        },{
            .name = "x509-key-password",
            .type = QEMU_OPT_STRING,
        },{
            .name = "x509-cert-file",
            .type = QEMU_OPT_STRING,
        },{
            .name = "x509-cacert-file",
            .type = QEMU_OPT_STRING,
        },{
            .name = "x509-dh-key-file",
            .type = QEMU_OPT_STRING,
        },{
            .name = "tls-ciphers",
            .type = QEMU_OPT_STRING,
        },{
            .name = "tls-channel",
            .type = QEMU_OPT_STRING,
        },{
            .name = "plaintext-channel",
            .type = QEMU_OPT_STRING,
        },{
            .name = "image-compression",
            .type = QEMU_OPT_STRING,
        },{
            .name = "jpeg-wan-compression",
            .type = QEMU_OPT_STRING,
        },{
            .name = "zlib-glz-wan-compression",
            .type = QEMU_OPT_STRING,
        },{
            .name = "streaming-video",
            .type = QEMU_OPT_STRING,
        },{
            .name = "agent-mouse",
            .type = QEMU_OPT_BOOL,
        },{
            .name = "playback-compression",
            .type = QEMU_OPT_BOOL,
        },
        { /* end of list */ }
    },
};

QemuOptsList qemu_option_rom_opts = {
    .name = "option-rom",
    .implied_opt_name = "romfile",
    .head = QTAILQ_HEAD_INITIALIZER(qemu_option_rom_opts.head),
    .desc = {
        {
            .name = "bootindex",
            .type = QEMU_OPT_NUMBER,
        }, {
            .name = "romfile",
            .type = QEMU_OPT_STRING,
        },
        { /* end of list */ }
    },
};

static QemuOptsList qemu_machine_opts = {
    .name = "machine",
    .implied_opt_name = "type",
    .head = QTAILQ_HEAD_INITIALIZER(qemu_machine_opts.head),
    .desc = {
        {
            .name = "type",
            .type = QEMU_OPT_STRING,
            .help = "emulated machine"
        }, {
            .name = "accel",
            .type = QEMU_OPT_STRING,
            .help = "accelerator list",
        }, {
            .name = "kernel_irqchip",
            .type = QEMU_OPT_BOOL,
            .help = "use KVM in-kernel irqchip",
        },
        { /* End of list */ }
    },
};

QemuOptsList qemu_boot_opts = {
    .name = "boot-opts",
    .head = QTAILQ_HEAD_INITIALIZER(qemu_boot_opts.head),
    .desc = {
        /* the three names below are not used now */
        {
            .name = "order",
            .type = QEMU_OPT_STRING,
        }, {
            .name = "once",
            .type = QEMU_OPT_STRING,
        }, {
            .name = "menu",
            .type = QEMU_OPT_STRING,
        /* following are really used */
        }, {
            .name = "splash",
            .type = QEMU_OPT_STRING,
        }, {
            .name = "splash-time",
            .type = QEMU_OPT_STRING,
        },
        { /*End of list */ }
    },
};

static QemuOptsList *vm_config_groups[32] = {
    &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,
    &qemu_trace_opts,
    &qemu_option_rom_opts,
    &qemu_machine_opts,
    &qemu_boot_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);
}

void qemu_add_opts(QemuOptsList *list)
{
    int entries, i;

    entries = ARRAY_SIZE(vm_config_groups);
    entries--; /* keep list NULL terminated */
    for (i = 0; i < entries; i++) {
        if (vm_config_groups[i] == NULL) {
            vm_config_groups[i] = list;
            return;
        }
    }
    fprintf(stderr, "ran out of space in vm_config_groups");
    abort();
}

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"
d0fef6fb	5	#include "hw/qdev.h"
7282a033	6
3329f07b	7	static QemuOptsList qemu_drive_opts = {
7282a033	8	.name = "drive",
72cf2d4f	9	.head = QTAILQ_HEAD_INITIALIZER(qemu_drive_opts.head),
7282a033 GH	10	.desc = {
	11	{
	12	.name = "bus",
	13	.type = QEMU_OPT_NUMBER,
	14	.help = "bus number",
	15	},{
	16	.name = "unit",
	17	.type = QEMU_OPT_NUMBER,
	18	.help = "unit number (i.e. lun for scsi)",
	19	},{
	20	.name = "if",
	21	.type = QEMU_OPT_STRING,
	22	.help = "interface (ide, scsi, sd, mtd, floppy, pflash, virtio)",
	23	},{
	24	.name = "index",
	25	.type = QEMU_OPT_NUMBER,
69d7e218	26	.help = "index number",
7282a033 GH	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,
69d7e218	50	.help = "enable/disable snapshot mode",
7282a033 GH	51	},{
	52	.name = "file",
	53	.type = QEMU_OPT_STRING,
	54	.help = "disk image",
	55	},{
	56	.name = "cache",
	57	.type = QEMU_OPT_STRING,
92196b2f SH	58	.help = "host cache usage (none, writeback, writethrough, "
92196b2f SH	59	"directsync, unsafe)",
5c6c3a6c CH	60	},{
	61	.name = "aio",
	62	.type = QEMU_OPT_STRING,
	63	.help = "host AIO implementation (threads, native)",
7282a033 GH	64	},{
	65	.name = "format",
	66	.type = QEMU_OPT_STRING,
	67	.help = "disk format (raw, qcow2, ...)",
	68	},{
	69	.name = "serial",
	70	.type = QEMU_OPT_STRING,
69d7e218	71	.help = "disk serial number",
e9b2e818 KW	72	},{
	73	.name = "rerror",
	74	.type = QEMU_OPT_STRING,
69d7e218	75	.help = "read error action",
7282a033 GH	76	},{
	77	.name = "werror",
	78	.type = QEMU_OPT_STRING,
69d7e218	79	.help = "write error action",
7282a033 GH	80	},{
	81	.name = "addr",
	82	.type = QEMU_OPT_STRING,
	83	.help = "pci address (virtio only)",
59f2689d NS	84	},{
	85	.name = "readonly",
	86	.type = QEMU_OPT_BOOL,
69d7e218	87	.help = "open drive file as read-only",
0563e191 ZYW	88	},{
	89	.name = "iops",
	90	.type = QEMU_OPT_NUMBER,
	91	.help = "limit total I/O operations per second",
	92	},{
	93	.name = "iops_rd",
	94	.type = QEMU_OPT_NUMBER,
	95	.help = "limit read operations per second",
	96	},{
	97	.name = "iops_wr",
	98	.type = QEMU_OPT_NUMBER,
	99	.help = "limit write operations per second",
	100	},{
	101	.name = "bps",
	102	.type = QEMU_OPT_NUMBER,
	103	.help = "limit total bytes per second",
	104	},{
	105	.name = "bps_rd",
	106	.type = QEMU_OPT_NUMBER,
	107	.help = "limit read bytes per second",
	108	},{
	109	.name = "bps_wr",
	110	.type = QEMU_OPT_NUMBER,
	111	.help = "limit write bytes per second",
fb0490f6 SH	112	},{
	113	.name = "copy-on-read",
	114	.type = QEMU_OPT_BOOL,
	115	.help = "copy read data from backing file into image file",
7282a033	116	},
26056e0c	117	{ /* end of list */ }
7282a033 GH	118	},
	119	};
	120
3329f07b	121	static QemuOptsList qemu_chardev_opts = {
191bc01b	122	.name = "chardev",
8212c64f	123	.implied_opt_name = "backend",
72cf2d4f	124	.head = QTAILQ_HEAD_INITIALIZER(qemu_chardev_opts.head),
191bc01b	125	.desc = {
7d31544f GH	126	{
	127	.name = "backend",
	128	.type = QEMU_OPT_STRING,
	129	},{
	130	.name = "path",
	131	.type = QEMU_OPT_STRING,
aeb2c47a GH	132	},{
	133	.name = "host",
	134	.type = QEMU_OPT_STRING,
	135	},{
	136	.name = "port",
	137	.type = QEMU_OPT_STRING,
7e1b35b4 GH	138	},{
	139	.name = "localaddr",
	140	.type = QEMU_OPT_STRING,
	141	},{
	142	.name = "localport",
	143	.type = QEMU_OPT_STRING,
aeb2c47a GH	144	},{
	145	.name = "to",
	146	.type = QEMU_OPT_NUMBER,
	147	},{
	148	.name = "ipv4",
	149	.type = QEMU_OPT_BOOL,
	150	},{
	151	.name = "ipv6",
	152	.type = QEMU_OPT_BOOL,
	153	},{
	154	.name = "wait",
	155	.type = QEMU_OPT_BOOL,
	156	},{
	157	.name = "server",
	158	.type = QEMU_OPT_BOOL,
	159	},{
	160	.name = "delay",
	161	.type = QEMU_OPT_BOOL,
	162	},{
	163	.name = "telnet",
	164	.type = QEMU_OPT_BOOL,
6ea314d9 GH	165	},{
	166	.name = "width",
	167	.type = QEMU_OPT_NUMBER,
	168	},{
	169	.name = "height",
	170	.type = QEMU_OPT_NUMBER,
	171	},{
	172	.name = "cols",
	173	.type = QEMU_OPT_NUMBER,
	174	},{
	175	.name = "rows",
	176	.type = QEMU_OPT_NUMBER,
c845f401 GH	177	},{
	178	.name = "mux",
	179	.type = QEMU_OPT_BOOL,
5989020b KK	180	},{
	181	.name = "signal",
	182	.type = QEMU_OPT_BOOL,
cbcc6336 AL	183	},{
	184	.name = "name",
	185	.type = QEMU_OPT_STRING,
	186	},{
	187	.name = "debug",
	188	.type = QEMU_OPT_NUMBER,
7d31544f	189	},
26056e0c	190	{ /* end of list */ }
191bc01b GH	191	},
	192	};
	193
74db920c GS	194	QemuOptsList qemu_fsdev_opts = {
74db920c GS	195	.name = "fsdev",
fbcbf101	196	.implied_opt_name = "fsdriver",
74db920c GS	197	.head = QTAILQ_HEAD_INITIALIZER(qemu_fsdev_opts.head),
	198	.desc = {
	199	{
fbcbf101	200	.name = "fsdriver",
74db920c GS	201	.type = QEMU_OPT_STRING,
	202	}, {
	203	.name = "path",
	204	.type = QEMU_OPT_STRING,
9ce56db6 VJ	205	}, {
	206	.name = "security_model",
	207	.type = QEMU_OPT_STRING,
d3ab98e6 AK	208	}, {
	209	.name = "writeout",
	210	.type = QEMU_OPT_STRING,
2c74c2cb MK	211	}, {
	212	.name = "readonly",
	213	.type = QEMU_OPT_BOOL,
84a87cc4 MK	214
	215	}, {
	216	.name = "socket",
	217	.type = QEMU_OPT_STRING,
4c793dda MK	218	}, {
	219	.name = "sock_fd",
	220	.type = QEMU_OPT_NUMBER,
74db920c	221	},
2c74c2cb	222
74db920c GS	223	{ /End of list / }
	224	},
	225	};
74db920c	226
3d54abc7 GS	227	QemuOptsList qemu_virtfs_opts = {
3d54abc7 GS	228	.name = "virtfs",
fbcbf101	229	.implied_opt_name = "fsdriver",
3d54abc7 GS	230	.head = QTAILQ_HEAD_INITIALIZER(qemu_virtfs_opts.head),
	231	.desc = {
	232	{
fbcbf101	233	.name = "fsdriver",
3d54abc7 GS	234	.type = QEMU_OPT_STRING,
	235	}, {
	236	.name = "path",
	237	.type = QEMU_OPT_STRING,
	238	}, {
	239	.name = "mount_tag",
	240	.type = QEMU_OPT_STRING,
9ce56db6 VJ	241	}, {
	242	.name = "security_model",
	243	.type = QEMU_OPT_STRING,
d3ab98e6 AK	244	}, {
	245	.name = "writeout",
	246	.type = QEMU_OPT_STRING,
2c74c2cb MK	247	}, {
	248	.name = "readonly",
	249	.type = QEMU_OPT_BOOL,
84a87cc4 MK	250	}, {
	251	.name = "socket",
	252	.type = QEMU_OPT_STRING,
4c793dda MK	253	}, {
	254	.name = "sock_fd",
	255	.type = QEMU_OPT_NUMBER,
3d54abc7 GS	256	},
	257
	258	{ /End of list / }
	259	},
	260	};
3d54abc7	261
3329f07b	262	static QemuOptsList qemu_device_opts = {
f31d07d1	263	.name = "device",
8212c64f	264	.implied_opt_name = "driver",
72cf2d4f	265	.head = QTAILQ_HEAD_INITIALIZER(qemu_device_opts.head),
f31d07d1 GH	266	.desc = {
	267	/*
	268	* no elements => accept any
	269	* sanity checking will happen later
	270	* when setting device properties
	271	*/
26056e0c	272	{ /* end of list */ }
f31d07d1 GH	273	},
	274	};
	275
3329f07b	276	static QemuOptsList qemu_netdev_opts = {
a1ea458f	277	.name = "netdev",
8212c64f	278	.implied_opt_name = "type",
a1ea458f MM	279	.head = QTAILQ_HEAD_INITIALIZER(qemu_netdev_opts.head),
	280	.desc = {
	281	/*
	282	* no elements => accept any params
	283	* validation will happen later
	284	*/
	285	{ /* end of list */ }
	286	},
	287	};
	288
3329f07b	289	static QemuOptsList qemu_net_opts = {
8119b33d	290	.name = "net",
8212c64f	291	.implied_opt_name = "type",
8119b33d MM	292	.head = QTAILQ_HEAD_INITIALIZER(qemu_net_opts.head),
	293	.desc = {
	294	/*
	295	* no elements => accept any params
	296	* validation will happen later
	297	*/
	298	{ /* end of list */ }
	299	},
	300	};
	301
3329f07b	302	static QemuOptsList qemu_rtc_opts = {
1ed2fc1f JK	303	.name = "rtc",
	304	.head = QTAILQ_HEAD_INITIALIZER(qemu_rtc_opts.head),
	305	.desc = {
	306	{
	307	.name = "base",
	308	.type = QEMU_OPT_STRING,
6875204c JK	309	},{
	310	.name = "clock",
	311	.type = QEMU_OPT_STRING,
1ed2fc1f JK	312	},{
	313	.name = "driftfix",
	314	.type = QEMU_OPT_STRING,
1ed2fc1f	315	},
26056e0c	316	{ /* end of list */ }
1ed2fc1f JK	317	},
	318	};
	319
3329f07b	320	static QemuOptsList qemu_global_opts = {
d0fef6fb GH	321	.name = "global",
	322	.head = QTAILQ_HEAD_INITIALIZER(qemu_global_opts.head),
	323	.desc = {
	324	{
	325	.name = "driver",
	326	.type = QEMU_OPT_STRING,
	327	},{
	328	.name = "property",
	329	.type = QEMU_OPT_STRING,
	330	},{
	331	.name = "value",
	332	.type = QEMU_OPT_STRING,
	333	},
26056e0c	334	{ /* end of list */ }
d0fef6fb GH	335	},
	336	};
	337
3329f07b	338	static QemuOptsList qemu_mon_opts = {
88589343	339	.name = "mon",
8212c64f	340	.implied_opt_name = "chardev",
88589343 GH	341	.head = QTAILQ_HEAD_INITIALIZER(qemu_mon_opts.head),
	342	.desc = {
	343	{
	344	.name = "mode",
	345	.type = QEMU_OPT_STRING,
	346	},{
	347	.name = "chardev",
	348	.type = QEMU_OPT_STRING,
	349	},{
	350	.name = "default",
	351	.type = QEMU_OPT_BOOL,
39eaab9a DB	352	},{
	353	.name = "pretty",
	354	.type = QEMU_OPT_BOOL,
88589343	355	},
26056e0c	356	{ /* end of list */ }
88589343 GH	357	},
	358	};
	359
ab6540d5 PS	360	static QemuOptsList qemu_trace_opts = {
	361	.name = "trace",
	362	.implied_opt_name = "trace",
	363	.head = QTAILQ_HEAD_INITIALIZER(qemu_trace_opts.head),
	364	.desc = {
	365	{
23d15e86 LV	366	.name = "events",
	367	.type = QEMU_OPT_STRING,
	368	},{
ab6540d5 PS	369	.name = "file",
	370	.type = QEMU_OPT_STRING,
	371	},
44bd6907	372	{ /* end of list */ }
ab6540d5 PS	373	},
ab6540d5 PS	374	};
ab6540d5	375
3329f07b	376	static QemuOptsList qemu_cpudef_opts = {
b5ec5ce0	377	.name = "cpudef",
	378	.head = QTAILQ_HEAD_INITIALIZER(qemu_cpudef_opts.head),
	379	.desc = {
	380	{
	381	.name = "name",
	382	.type = QEMU_OPT_STRING,
	383	},{
	384	.name = "level",
	385	.type = QEMU_OPT_NUMBER,
	386	},{
	387	.name = "vendor",
	388	.type = QEMU_OPT_STRING,
	389	},{
	390	.name = "family",
	391	.type = QEMU_OPT_NUMBER,
	392	},{
	393	.name = "model",
	394	.type = QEMU_OPT_NUMBER,
	395	},{
	396	.name = "stepping",
	397	.type = QEMU_OPT_NUMBER,
	398	},{
	399	.name = "feature_edx", /* cpuid 0000_0001.edx */
	400	.type = QEMU_OPT_STRING,
	401	},{
	402	.name = "feature_ecx", /* cpuid 0000_0001.ecx */
	403	.type = QEMU_OPT_STRING,
	404	},{
	405	.name = "extfeature_edx", /* cpuid 8000_0001.edx */
	406	.type = QEMU_OPT_STRING,
	407	},{
	408	.name = "extfeature_ecx", /* cpuid 8000_0001.ecx */
	409	.type = QEMU_OPT_STRING,
	410	},{
	411	.name = "xlevel",
	412	.type = QEMU_OPT_NUMBER,
	413	},{
	414	.name = "model_id",
	415	.type = QEMU_OPT_STRING,
	416	},{
	417	.name = "vendor_override",
	418	.type = QEMU_OPT_NUMBER,
	419	},
	420	{ /* end of list */ }
	421	},
	422	};
	423
29b0040b GH	424	QemuOptsList qemu_spice_opts = {
	425	.name = "spice",
	426	.head = QTAILQ_HEAD_INITIALIZER(qemu_spice_opts.head),
	427	.desc = {
	428	{
	429	.name = "port",
	430	.type = QEMU_OPT_NUMBER,
c448e855 GH	431	},{
	432	.name = "tls-port",
	433	.type = QEMU_OPT_NUMBER,
333b0eeb GH	434	},{
	435	.name = "addr",
	436	.type = QEMU_OPT_STRING,
	437	},{
	438	.name = "ipv4",
	439	.type = QEMU_OPT_BOOL,
	440	},{
	441	.name = "ipv6",
	442	.type = QEMU_OPT_BOOL,
29b0040b GH	443	},{
	444	.name = "password",
	445	.type = QEMU_OPT_STRING,
	446	},{
	447	.name = "disable-ticketing",
	448	.type = QEMU_OPT_BOOL,
d4970b07 HG	449	},{
	450	.name = "disable-copy-paste",
	451	.type = QEMU_OPT_BOOL,
48b3ed0a MAL	452	},{
	453	.name = "sasl",
	454	.type = QEMU_OPT_BOOL,
c448e855 GH	455	},{
	456	.name = "x509-dir",
	457	.type = QEMU_OPT_STRING,
	458	},{
	459	.name = "x509-key-file",
	460	.type = QEMU_OPT_STRING,
	461	},{
	462	.name = "x509-key-password",
	463	.type = QEMU_OPT_STRING,
	464	},{
	465	.name = "x509-cert-file",
	466	.type = QEMU_OPT_STRING,
	467	},{
	468	.name = "x509-cacert-file",
	469	.type = QEMU_OPT_STRING,
	470	},{
	471	.name = "x509-dh-key-file",
	472	.type = QEMU_OPT_STRING,
	473	},{
	474	.name = "tls-ciphers",
	475	.type = QEMU_OPT_STRING,
17b6dea0 GH	476	},{
	477	.name = "tls-channel",
	478	.type = QEMU_OPT_STRING,
	479	},{
	480	.name = "plaintext-channel",
	481	.type = QEMU_OPT_STRING,
9f04e09e YH	482	},{
	483	.name = "image-compression",
	484	.type = QEMU_OPT_STRING,
	485	},{
	486	.name = "jpeg-wan-compression",
	487	.type = QEMU_OPT_STRING,
	488	},{
	489	.name = "zlib-glz-wan-compression",
	490	.type = QEMU_OPT_STRING,
84a23f25 GH	491	},{
	492	.name = "streaming-video",
	493	.type = QEMU_OPT_STRING,
	494	},{
	495	.name = "agent-mouse",
	496	.type = QEMU_OPT_BOOL,
	497	},{
	498	.name = "playback-compression",
	499	.type = QEMU_OPT_BOOL,
29b0040b	500	},
44bd6907	501	{ /* end of list */ }
29b0040b GH	502	},
	503	};
	504
2e55e842 GN	505	QemuOptsList qemu_option_rom_opts = {
	506	.name = "option-rom",
	507	.implied_opt_name = "romfile",
	508	.head = QTAILQ_HEAD_INITIALIZER(qemu_option_rom_opts.head),
	509	.desc = {
	510	{
	511	.name = "bootindex",
	512	.type = QEMU_OPT_NUMBER,
	513	}, {
	514	.name = "romfile",
	515	.type = QEMU_OPT_STRING,
	516	},
44bd6907	517	{ /* end of list */ }
2e55e842 GN	518	},
	519	};
	520
303d4e86 AP	521	static QemuOptsList qemu_machine_opts = {
303d4e86 AP	522	.name = "machine",
9052ea6b	523	.implied_opt_name = "type",
303d4e86 AP	524	.head = QTAILQ_HEAD_INITIALIZER(qemu_machine_opts.head),
	525	.desc = {
	526	{
9052ea6b JK	527	.name = "type",
	528	.type = QEMU_OPT_STRING,
	529	.help = "emulated machine"
	530	}, {
303d4e86 AP	531	.name = "accel",
	532	.type = QEMU_OPT_STRING,
	533	.help = "accelerator list",
6a48ffaa JK	534	}, {
	535	.name = "kernel_irqchip",
	536	.type = QEMU_OPT_BOOL,
	537	.help = "use KVM in-kernel irqchip",
303d4e86 AP	538	},
	539	{ /* End of list */ }
	540	},
	541	};
	542
3d3b8303 WX	543	QemuOptsList qemu_boot_opts = {
	544	.name = "boot-opts",
	545	.head = QTAILQ_HEAD_INITIALIZER(qemu_boot_opts.head),
	546	.desc = {
	547	/* the three names below are not used now */
	548	{
	549	.name = "order",
	550	.type = QEMU_OPT_STRING,
	551	}, {
	552	.name = "once",
	553	.type = QEMU_OPT_STRING,
	554	}, {
	555	.name = "menu",
	556	.type = QEMU_OPT_STRING,
	557	/* following are really used */
	558	}, {
	559	.name = "splash",
	560	.type = QEMU_OPT_STRING,
	561	}, {
	562	.name = "splash-time",
	563	.type = QEMU_OPT_STRING,
	564	},
	565	{ /End of list / }
	566	},
	567	};
	568
dfe795e7	569	static QemuOptsList *vm_config_groups[32] = {
d058fe03	570	&qemu_drive_opts,
191bc01b	571	&qemu_chardev_opts,
f31d07d1	572	&qemu_device_opts,
a1ea458f	573	&qemu_netdev_opts,
8119b33d	574	&qemu_net_opts,
5fdfbf7e	575	&qemu_rtc_opts,
d0fef6fb	576	&qemu_global_opts,
88589343	577	&qemu_mon_opts,
b5ec5ce0	578	&qemu_cpudef_opts,
ab6540d5	579	&qemu_trace_opts,
2e55e842	580	&qemu_option_rom_opts,
303d4e86	581	&qemu_machine_opts,
3d3b8303	582	&qemu_boot_opts,
d058fe03 GH	583	NULL,
	584	};
	585
490b648e	586	static QemuOptsList find_list(QemuOptsList lists, const char group)
ddc97855 GH	587	{
	588	int i;
	589
	590	for (i = 0; lists[i] != NULL; i++) {
	591	if (strcmp(lists[i]->name, group) == 0)
	592	break;
	593	}
	594	if (lists[i] == NULL) {
1ecda02b	595	error_report("there is no option group \"%s\"", group);
ddc97855 GH	596	}
	597	return lists[i];
	598	}
	599
490b648e KW	600	QemuOptsList qemu_find_opts(const char group)
	601	{
	602	return find_list(vm_config_groups, group);
	603	}
	604
dfe795e7 GH	605	void qemu_add_opts(QemuOptsList *list)
	606	{
	607	int entries, i;
	608
	609	entries = ARRAY_SIZE(vm_config_groups);
	610	entries--; /* keep list NULL terminated */
	611	for (i = 0; i < entries; i++) {
	612	if (vm_config_groups[i] == NULL) {
	613	vm_config_groups[i] = list;
	614	return;
	615	}
	616	}
	617	fprintf(stderr, "ran out of space in vm_config_groups");
	618	abort();
	619	}
	620
d058fe03 GH	621	int qemu_set_option(const char *str)
	622	{
	623	char group[64], id[64], arg[64];
ddc97855	624	QemuOptsList *list;
d058fe03	625	QemuOpts *opts;
ddc97855	626	int rc, offset;
d058fe03 GH	627
	628	rc = sscanf(str, "%63[^.].%63[^.].%63[^=]%n", group, id, arg, &offset);
	629	if (rc < 3 \|\| str[offset] != '=') {
1ecda02b	630	error_report("can't parse: \"%s\"", str);
d058fe03 GH	631	return -1;
	632	}
	633
304329ee	634	list = qemu_find_opts(group);
ddc97855	635	if (list == NULL) {
d058fe03 GH	636	return -1;
	637	}
	638
ddc97855	639	opts = qemu_opts_find(list, id);
d058fe03	640	if (!opts) {
1ecda02b MA	641	error_report("there is no %s \"%s\" defined",
1ecda02b MA	642	list->name, id);
d058fe03 GH	643	return -1;
	644	}
	645
3df04ac3	646	if (qemu_opt_set(opts, arg, str+offset+1) == -1) {
d058fe03 GH	647	return -1;
	648	}
	649	return 0;
	650	}
	651
d0fef6fb GH	652	int qemu_global_option(const char *str)
	653	{
	654	char driver[64], property[64];
	655	QemuOpts *opts;
	656	int rc, offset;
	657
	658	rc = sscanf(str, "%63[^.].%63[^=]%n", driver, property, &offset);
	659	if (rc < 2 \|\| str[offset] != '=') {
1ecda02b	660	error_report("can't parse: \"%s\"", str);
d0fef6fb GH	661	return -1;
	662	}
	663
	664	opts = qemu_opts_create(&qemu_global_opts, NULL, 0);
	665	qemu_opt_set(opts, "driver", driver);
	666	qemu_opt_set(opts, "property", property);
	667	qemu_opt_set(opts, "value", str+offset+1);
	668	return 0;
	669	}
	670
9d993394 GH	671	struct ConfigWriteData {
	672	QemuOptsList *list;
	673	FILE *fp;
	674	};
	675
	676	static int config_write_opt(const char name, const char value, void *opaque)
	677	{
	678	struct ConfigWriteData *data = opaque;
	679
	680	fprintf(data->fp, " %s = \"%s\"\n", name, value);
	681	return 0;
	682	}
	683
	684	static int config_write_opts(QemuOpts opts, void opaque)
	685	{
	686	struct ConfigWriteData *data = opaque;
	687	const char *id = qemu_opts_id(opts);
	688
	689	if (id) {
	690	fprintf(data->fp, "[%s \"%s\"]\n", data->list->name, id);
	691	} else {
	692	fprintf(data->fp, "[%s]\n", data->list->name);
	693	}
	694	qemu_opt_foreach(opts, config_write_opt, data, 0);
	695	fprintf(data->fp, "\n");
	696	return 0;
	697	}
	698
	699	void qemu_config_write(FILE *fp)
	700	{
	701	struct ConfigWriteData data = { .fp = fp };
490b648e	702	QemuOptsList **lists = vm_config_groups;
9d993394 GH	703	int i;
	704
	705	fprintf(fp, "# qemu config file\n\n");
	706	for (i = 0; lists[i] != NULL; i++) {
	707	data.list = lists[i];
	708	qemu_opts_foreach(data.list, config_write_opts, &data, 0);
	709	}
	710	}
42262ba8	711
490b648e	712	int qemu_config_parse(FILE fp, QemuOptsList lists, const char fname)
42262ba8 GH	713	{
42262ba8 GH	714	char line[1024], group[64], id[64], arg[64], value[1024];
cf5a65aa	715	Location loc;
42262ba8 GH	716	QemuOptsList *list = NULL;
42262ba8 GH	717	QemuOpts *opts = NULL;
cf5a65aa	718	int res = -1, lno = 0;
42262ba8	719
cf5a65aa	720	loc_push_none(&loc);
42262ba8	721	while (fgets(line, sizeof(line), fp) != NULL) {
cf5a65aa	722	loc_set_file(fname, ++lno);
42262ba8 GH	723	if (line[0] == '\n') {
	724	/* skip empty lines */
	725	continue;
	726	}
	727	if (line[0] == '#') {
	728	/* comment */
	729	continue;
	730	}
	731	if (sscanf(line, "[%63s \"%63[^\"]\"]", group, id) == 2) {
	732	/* group with id */
490b648e	733	list = find_list(lists, group);
42262ba8	734	if (list == NULL)
cf5a65aa	735	goto out;
42262ba8 GH	736	opts = qemu_opts_create(list, id, 1);
	737	continue;
	738	}
	739	if (sscanf(line, "[%63[^]]]", group) == 1) {
	740	/* group without id */
490b648e	741	list = find_list(lists, group);
42262ba8	742	if (list == NULL)
cf5a65aa	743	goto out;
42262ba8 GH	744	opts = qemu_opts_create(list, NULL, 0);
	745	continue;
	746	}
	747	if (sscanf(line, " %63s = \"%1023[^\"]\"", arg, value) == 2) {
	748	/* arg = value */
	749	if (opts == NULL) {
cf5a65aa MA	750	error_report("no group defined");
cf5a65aa MA	751	goto out;
42262ba8 GH	752	}
42262ba8 GH	753	if (qemu_opt_set(opts, arg, value) != 0) {
cf5a65aa	754	goto out;
42262ba8 GH	755	}
	756	continue;
	757	}
cf5a65aa MA	758	error_report("parse error");
cf5a65aa MA	759	goto out;
42262ba8	760	}
ef82516d MA	761	if (ferror(fp)) {
	762	error_report("error reading file");
	763	goto out;
	764	}
cf5a65aa MA	765	res = 0;
	766	out:
	767	loc_pop(&loc);
	768	return res;
42262ba8	769	}
dcfb0939 KW	770
	771	int qemu_read_config_file(const char *filename)
	772	{
	773	FILE *f = fopen(filename, "r");
019e78ba KW	774	int ret;
019e78ba KW	775
dcfb0939 KW	776	if (f == NULL) {
	777	return -errno;
	778	}
	779
019e78ba	780	ret = qemu_config_parse(f, vm_config_groups, filename);
dcfb0939 KW	781	fclose(f);
dcfb0939 KW	782
019e78ba KW	783	if (ret == 0) {
	784	return 0;
	785	} else {
	786	return -EINVAL;
	787	}
dcfb0939	788	}