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#include "qemu-common.h"
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#include "qemu-error.h"
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#include "qemu-option.h"
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#include "qemu-config.h"
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#include "hw/qdev.h"
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static QemuOptsList qemu_drive_opts = {
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    .name = "drive",
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    .head = QTAILQ_HEAD_INITIALIZER(qemu_drive_opts.head),
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    .desc = {
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        {
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            .name = "bus",
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            .type = QEMU_OPT_NUMBER,
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            .help = "bus number",
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        },{
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            .name = "unit",
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            .type = QEMU_OPT_NUMBER,
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            .help = "unit number (i.e. lun for scsi)",
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        },{
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            .name = "if",
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            .type = QEMU_OPT_STRING,
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            .help = "interface (ide, scsi, sd, mtd, floppy, pflash, virtio)",
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        },{
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            .name = "index",
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            .type = QEMU_OPT_NUMBER,
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            .help = "index number",
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        },{
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            .name = "cyls",
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            .type = QEMU_OPT_NUMBER,
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            .help = "number of cylinders (ide disk geometry)",
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        },{
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            .name = "heads",
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            .type = QEMU_OPT_NUMBER,
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            .help = "number of heads (ide disk geometry)",
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        },{
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            .name = "secs",
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            .type = QEMU_OPT_NUMBER,
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            .help = "number of sectors (ide disk geometry)",
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        },{
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            .name = "trans",
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            .type = QEMU_OPT_STRING,
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            .help = "chs translation (auto, lba. none)",
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        },{
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            .name = "media",
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            .type = QEMU_OPT_STRING,
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            .help = "media type (disk, cdrom)",
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        },{
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            .name = "snapshot",
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            .type = QEMU_OPT_BOOL,
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            .help = "enable/disable snapshot mode",
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        },{
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            .name = "file",
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            .type = QEMU_OPT_STRING,
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            .help = "disk image",
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        },{
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            .name = "cache",
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            .type = QEMU_OPT_STRING,
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            .help = "host cache usage (none, writeback, writethrough, "
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                    "directsync, unsafe)",
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        },{
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            .name = "aio",
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            .type = QEMU_OPT_STRING,
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            .help = "host AIO implementation (threads, native)",
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        },{
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            .name = "format",
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            .type = QEMU_OPT_STRING,
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            .help = "disk format (raw, qcow2, ...)",
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        },{
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            .name = "serial",
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            .type = QEMU_OPT_STRING,
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            .help = "disk serial number",
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        },{
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            .name = "rerror",
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            .type = QEMU_OPT_STRING,
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            .help = "read error action",
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        },{
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            .name = "werror",
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            .type = QEMU_OPT_STRING,
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            .help = "write error action",
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        },{
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            .name = "addr",
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            .type = QEMU_OPT_STRING,
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            .help = "pci address (virtio only)",
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        },{
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            .name = "readonly",
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            .type = QEMU_OPT_BOOL,
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            .help = "open drive file as read-only",
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        },
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        { /* end of list */ }
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    },
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};
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static QemuOptsList qemu_chardev_opts = {
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    .name = "chardev",
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    .implied_opt_name = "backend",
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    .head = QTAILQ_HEAD_INITIALIZER(qemu_chardev_opts.head),
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    .desc = {
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        {
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            .name = "backend",
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            .type = QEMU_OPT_STRING,
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        },{
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            .name = "path",
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            .type = QEMU_OPT_STRING,
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        },{
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            .name = "host",
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            .type = QEMU_OPT_STRING,
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        },{
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            .name = "port",
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            .type = QEMU_OPT_STRING,
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        },{
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            .name = "localaddr",
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            .type = QEMU_OPT_STRING,
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        },{
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            .name = "localport",
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            .type = QEMU_OPT_STRING,
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        },{
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            .name = "to",
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            .type = QEMU_OPT_NUMBER,
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        },{
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            .name = "ipv4",
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            .type = QEMU_OPT_BOOL,
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        },{
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            .name = "ipv6",
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            .type = QEMU_OPT_BOOL,
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        },{
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            .name = "wait",
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            .type = QEMU_OPT_BOOL,
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        },{
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            .name = "server",
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            .type = QEMU_OPT_BOOL,
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        },{
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            .name = "delay",
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            .type = QEMU_OPT_BOOL,
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        },{
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            .name = "telnet",
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            .type = QEMU_OPT_BOOL,
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        },{
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            .name = "width",
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            .type = QEMU_OPT_NUMBER,
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        },{
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            .name = "height",
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            .type = QEMU_OPT_NUMBER,
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        },{
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            .name = "cols",
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            .type = QEMU_OPT_NUMBER,
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        },{
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            .name = "rows",
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            .type = QEMU_OPT_NUMBER,
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        },{
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            .name = "mux",
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            .type = QEMU_OPT_BOOL,
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        },{
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            .name = "signal",
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            .type = QEMU_OPT_BOOL,
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        },{
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            .name = "name",
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            .type = QEMU_OPT_STRING,
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        },{
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            .name = "debug",
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            .type = QEMU_OPT_NUMBER,
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        },
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        { /* end of list */ }
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    },
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};
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QemuOptsList qemu_fsdev_opts = {
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    .name = "fsdev",
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    .implied_opt_name = "fsdriver",
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    .head = QTAILQ_HEAD_INITIALIZER(qemu_fsdev_opts.head),
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    .desc = {
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        {
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            .name = "fsdriver",
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            .type = QEMU_OPT_STRING,
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        }, {
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            .name = "path",
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            .type = QEMU_OPT_STRING,
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        }, {
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            .name = "security_model",
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            .type = QEMU_OPT_STRING,
180
        }, {
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            .name = "writeout",
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            .type = QEMU_OPT_STRING,
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        },
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        { /*End of list */ }
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    },
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};
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QemuOptsList qemu_virtfs_opts = {
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    .name = "virtfs",
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    .implied_opt_name = "fsdriver",
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    .head = QTAILQ_HEAD_INITIALIZER(qemu_virtfs_opts.head),
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    .desc = {
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        {
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            .name = "fsdriver",
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            .type = QEMU_OPT_STRING,
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        }, {
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            .name = "path",
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            .type = QEMU_OPT_STRING,
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        }, {
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            .name = "mount_tag",
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            .type = QEMU_OPT_STRING,
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        }, {
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            .name = "security_model",
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            .type = QEMU_OPT_STRING,
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        }, {
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            .name = "writeout",
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            .type = QEMU_OPT_STRING,
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        },
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        { /*End of list */ }
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    },
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};
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static QemuOptsList qemu_device_opts = {
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    .name = "device",
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    .implied_opt_name = "driver",
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    .head = QTAILQ_HEAD_INITIALIZER(qemu_device_opts.head),
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    .desc = {
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        /*
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         * no elements => accept any
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         * sanity checking will happen later
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         * when setting device properties
223
         */
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        { /* end of list */ }
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    },
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};
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static QemuOptsList qemu_netdev_opts = {
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    .name = "netdev",
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    .implied_opt_name = "type",
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    .head = QTAILQ_HEAD_INITIALIZER(qemu_netdev_opts.head),
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    .desc = {
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        /*
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         * no elements => accept any params
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         * validation will happen later
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         */
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        { /* end of list */ }
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    },
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};
240

    
241
static QemuOptsList qemu_net_opts = {
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    .name = "net",
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    .implied_opt_name = "type",
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    .head = QTAILQ_HEAD_INITIALIZER(qemu_net_opts.head),
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    .desc = {
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        /*
247
         * no elements => accept any params
248
         * validation will happen later
249
         */
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        { /* end of list */ }
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    },
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};
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254
static QemuOptsList qemu_rtc_opts = {
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    .name = "rtc",
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    .head = QTAILQ_HEAD_INITIALIZER(qemu_rtc_opts.head),
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    .desc = {
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        {
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            .name = "base",
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            .type = QEMU_OPT_STRING,
261
        },{
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            .name = "clock",
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            .type = QEMU_OPT_STRING,
264
        },{
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            .name = "driftfix",
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            .type = QEMU_OPT_STRING,
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        },
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        { /* end of list */ }
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    },
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};
271

    
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static QemuOptsList qemu_global_opts = {
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    .name = "global",
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    .head = QTAILQ_HEAD_INITIALIZER(qemu_global_opts.head),
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    .desc = {
276
        {
277
            .name = "driver",
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            .type = QEMU_OPT_STRING,
279
        },{
280
            .name = "property",
281
            .type = QEMU_OPT_STRING,
282
        },{
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            .name = "value",
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            .type = QEMU_OPT_STRING,
285
        },
286
        { /* end of list */ }
287
    },
288
};
289

    
290
static QemuOptsList qemu_mon_opts = {
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    .name = "mon",
292
    .implied_opt_name = "chardev",
293
    .head = QTAILQ_HEAD_INITIALIZER(qemu_mon_opts.head),
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    .desc = {
295
        {
296
            .name = "mode",
297
            .type = QEMU_OPT_STRING,
298
        },{
299
            .name = "chardev",
300
            .type = QEMU_OPT_STRING,
301
        },{
302
            .name = "default",
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            .type = QEMU_OPT_BOOL,
304
        },{
305
            .name = "pretty",
306
            .type = QEMU_OPT_BOOL,
307
        },
308
        { /* end of list */ }
309
    },
310
};
311

    
312
static QemuOptsList qemu_trace_opts = {
313
    .name = "trace",
314
    .implied_opt_name = "trace",
315
    .head = QTAILQ_HEAD_INITIALIZER(qemu_trace_opts.head),
316
    .desc = {
317
        {
318
            .name = "events",
319
            .type = QEMU_OPT_STRING,
320
        },{
321
            .name = "file",
322
            .type = QEMU_OPT_STRING,
323
        },
324
        { /* end of list */ }
325
    },
326
};
327

    
328
static QemuOptsList qemu_cpudef_opts = {
329
    .name = "cpudef",
330
    .head = QTAILQ_HEAD_INITIALIZER(qemu_cpudef_opts.head),
331
    .desc = {
332
        {
333
            .name = "name",
334
            .type = QEMU_OPT_STRING,
335
        },{
336
            .name = "level",
337
            .type = QEMU_OPT_NUMBER,
338
        },{
339
            .name = "vendor",
340
            .type = QEMU_OPT_STRING,
341
        },{
342
            .name = "family",
343
            .type = QEMU_OPT_NUMBER,
344
        },{
345
            .name = "model",
346
            .type = QEMU_OPT_NUMBER,
347
        },{
348
            .name = "stepping",
349
            .type = QEMU_OPT_NUMBER,
350
        },{
351
            .name = "feature_edx",      /* cpuid 0000_0001.edx */
352
            .type = QEMU_OPT_STRING,
353
        },{
354
            .name = "feature_ecx",      /* cpuid 0000_0001.ecx */
355
            .type = QEMU_OPT_STRING,
356
        },{
357
            .name = "extfeature_edx",   /* cpuid 8000_0001.edx */
358
            .type = QEMU_OPT_STRING,
359
        },{
360
            .name = "extfeature_ecx",   /* cpuid 8000_0001.ecx */
361
            .type = QEMU_OPT_STRING,
362
        },{
363
            .name = "xlevel",
364
            .type = QEMU_OPT_NUMBER,
365
        },{
366
            .name = "model_id",
367
            .type = QEMU_OPT_STRING,
368
        },{
369
            .name = "vendor_override",
370
            .type = QEMU_OPT_NUMBER,
371
        },
372
        { /* end of list */ }
373
    },
374
};
375

    
376
QemuOptsList qemu_spice_opts = {
377
    .name = "spice",
378
    .head = QTAILQ_HEAD_INITIALIZER(qemu_spice_opts.head),
379
    .desc = {
380
        {
381
            .name = "port",
382
            .type = QEMU_OPT_NUMBER,
383
        },{
384
            .name = "tls-port",
385
            .type = QEMU_OPT_NUMBER,
386
        },{
387
            .name = "addr",
388
            .type = QEMU_OPT_STRING,
389
        },{
390
            .name = "ipv4",
391
            .type = QEMU_OPT_BOOL,
392
        },{
393
            .name = "ipv6",
394
            .type = QEMU_OPT_BOOL,
395
        },{
396
            .name = "password",
397
            .type = QEMU_OPT_STRING,
398
        },{
399
            .name = "disable-ticketing",
400
            .type = QEMU_OPT_BOOL,
401
        },{
402
            .name = "disable-copy-paste",
403
            .type = QEMU_OPT_BOOL,
404
        },{
405
            .name = "sasl",
406
            .type = QEMU_OPT_BOOL,
407
        },{
408
            .name = "x509-dir",
409
            .type = QEMU_OPT_STRING,
410
        },{
411
            .name = "x509-key-file",
412
            .type = QEMU_OPT_STRING,
413
        },{
414
            .name = "x509-key-password",
415
            .type = QEMU_OPT_STRING,
416
        },{
417
            .name = "x509-cert-file",
418
            .type = QEMU_OPT_STRING,
419
        },{
420
            .name = "x509-cacert-file",
421
            .type = QEMU_OPT_STRING,
422
        },{
423
            .name = "x509-dh-key-file",
424
            .type = QEMU_OPT_STRING,
425
        },{
426
            .name = "tls-ciphers",
427
            .type = QEMU_OPT_STRING,
428
        },{
429
            .name = "tls-channel",
430
            .type = QEMU_OPT_STRING,
431
        },{
432
            .name = "plaintext-channel",
433
            .type = QEMU_OPT_STRING,
434
        },{
435
            .name = "image-compression",
436
            .type = QEMU_OPT_STRING,
437
        },{
438
            .name = "jpeg-wan-compression",
439
            .type = QEMU_OPT_STRING,
440
        },{
441
            .name = "zlib-glz-wan-compression",
442
            .type = QEMU_OPT_STRING,
443
        },{
444
            .name = "streaming-video",
445
            .type = QEMU_OPT_STRING,
446
        },{
447
            .name = "agent-mouse",
448
            .type = QEMU_OPT_BOOL,
449
        },{
450
            .name = "playback-compression",
451
            .type = QEMU_OPT_BOOL,
452
        },
453
        { /* end of list */ }
454
    },
455
};
456

    
457
QemuOptsList qemu_option_rom_opts = {
458
    .name = "option-rom",
459
    .implied_opt_name = "romfile",
460
    .head = QTAILQ_HEAD_INITIALIZER(qemu_option_rom_opts.head),
461
    .desc = {
462
        {
463
            .name = "bootindex",
464
            .type = QEMU_OPT_NUMBER,
465
        }, {
466
            .name = "romfile",
467
            .type = QEMU_OPT_STRING,
468
        },
469
        { /* end of list */ }
470
    },
471
};
472

    
473
static QemuOptsList qemu_machine_opts = {
474
    .name = "machine",
475
    .implied_opt_name = "type",
476
    .head = QTAILQ_HEAD_INITIALIZER(qemu_machine_opts.head),
477
    .desc = {
478
        {
479
            .name = "type",
480
            .type = QEMU_OPT_STRING,
481
            .help = "emulated machine"
482
        }, {
483
            .name = "accel",
484
            .type = QEMU_OPT_STRING,
485
            .help = "accelerator list",
486
        },
487
        { /* End of list */ }
488
    },
489
};
490

    
491
QemuOptsList qemu_boot_opts = {
492
    .name = "boot-opts",
493
    .head = QTAILQ_HEAD_INITIALIZER(qemu_boot_opts.head),
494
    .desc = {
495
        /* the three names below are not used now */
496
        {
497
            .name = "order",
498
            .type = QEMU_OPT_STRING,
499
        }, {
500
            .name = "once",
501
            .type = QEMU_OPT_STRING,
502
        }, {
503
            .name = "menu",
504
            .type = QEMU_OPT_STRING,
505
        /* following are really used */
506
        }, {
507
            .name = "splash",
508
            .type = QEMU_OPT_STRING,
509
        }, {
510
            .name = "splash-time",
511
            .type = QEMU_OPT_STRING,
512
        },
513
        { /*End of list */ }
514
    },
515
};
516

    
517
static QemuOptsList *vm_config_groups[32] = {
518
    &qemu_drive_opts,
519
    &qemu_chardev_opts,
520
    &qemu_device_opts,
521
    &qemu_netdev_opts,
522
    &qemu_net_opts,
523
    &qemu_rtc_opts,
524
    &qemu_global_opts,
525
    &qemu_mon_opts,
526
    &qemu_cpudef_opts,
527
    &qemu_trace_opts,
528
    &qemu_option_rom_opts,
529
    &qemu_machine_opts,
530
    &qemu_boot_opts,
531
    NULL,
532
};
533

    
534
static QemuOptsList *find_list(QemuOptsList **lists, const char *group)
535
{
536
    int i;
537

    
538
    for (i = 0; lists[i] != NULL; i++) {
539
        if (strcmp(lists[i]->name, group) == 0)
540
            break;
541
    }
542
    if (lists[i] == NULL) {
543
        error_report("there is no option group \"%s\"", group);
544
    }
545
    return lists[i];
546
}
547

    
548
QemuOptsList *qemu_find_opts(const char *group)
549
{
550
    return find_list(vm_config_groups, group);
551
}
552

    
553
void qemu_add_opts(QemuOptsList *list)
554
{
555
    int entries, i;
556

    
557
    entries = ARRAY_SIZE(vm_config_groups);
558
    entries--; /* keep list NULL terminated */
559
    for (i = 0; i < entries; i++) {
560
        if (vm_config_groups[i] == NULL) {
561
            vm_config_groups[i] = list;
562
            return;
563
        }
564
    }
565
    fprintf(stderr, "ran out of space in vm_config_groups");
566
    abort();
567
}
568

    
569
int qemu_set_option(const char *str)
570
{
571
    char group[64], id[64], arg[64];
572
    QemuOptsList *list;
573
    QemuOpts *opts;
574
    int rc, offset;
575

    
576
    rc = sscanf(str, "%63[^.].%63[^.].%63[^=]%n", group, id, arg, &offset);
577
    if (rc < 3 || str[offset] != '=') {
578
        error_report("can't parse: \"%s\"", str);
579
        return -1;
580
    }
581

    
582
    list = qemu_find_opts(group);
583
    if (list == NULL) {
584
        return -1;
585
    }
586

    
587
    opts = qemu_opts_find(list, id);
588
    if (!opts) {
589
        error_report("there is no %s \"%s\" defined",
590
                     list->name, id);
591
        return -1;
592
    }
593

    
594
    if (qemu_opt_set(opts, arg, str+offset+1) == -1) {
595
        return -1;
596
    }
597
    return 0;
598
}
599

    
600
int qemu_global_option(const char *str)
601
{
602
    char driver[64], property[64];
603
    QemuOpts *opts;
604
    int rc, offset;
605

    
606
    rc = sscanf(str, "%63[^.].%63[^=]%n", driver, property, &offset);
607
    if (rc < 2 || str[offset] != '=') {
608
        error_report("can't parse: \"%s\"", str);
609
        return -1;
610
    }
611

    
612
    opts = qemu_opts_create(&qemu_global_opts, NULL, 0);
613
    qemu_opt_set(opts, "driver", driver);
614
    qemu_opt_set(opts, "property", property);
615
    qemu_opt_set(opts, "value", str+offset+1);
616
    return 0;
617
}
618

    
619
struct ConfigWriteData {
620
    QemuOptsList *list;
621
    FILE *fp;
622
};
623

    
624
static int config_write_opt(const char *name, const char *value, void *opaque)
625
{
626
    struct ConfigWriteData *data = opaque;
627

    
628
    fprintf(data->fp, "  %s = \"%s\"\n", name, value);
629
    return 0;
630
}
631

    
632
static int config_write_opts(QemuOpts *opts, void *opaque)
633
{
634
    struct ConfigWriteData *data = opaque;
635
    const char *id = qemu_opts_id(opts);
636

    
637
    if (id) {
638
        fprintf(data->fp, "[%s \"%s\"]\n", data->list->name, id);
639
    } else {
640
        fprintf(data->fp, "[%s]\n", data->list->name);
641
    }
642
    qemu_opt_foreach(opts, config_write_opt, data, 0);
643
    fprintf(data->fp, "\n");
644
    return 0;
645
}
646

    
647
void qemu_config_write(FILE *fp)
648
{
649
    struct ConfigWriteData data = { .fp = fp };
650
    QemuOptsList **lists = vm_config_groups;
651
    int i;
652

    
653
    fprintf(fp, "# qemu config file\n\n");
654
    for (i = 0; lists[i] != NULL; i++) {
655
        data.list = lists[i];
656
        qemu_opts_foreach(data.list, config_write_opts, &data, 0);
657
    }
658
}
659

    
660
int qemu_config_parse(FILE *fp, QemuOptsList **lists, const char *fname)
661
{
662
    char line[1024], group[64], id[64], arg[64], value[1024];
663
    Location loc;
664
    QemuOptsList *list = NULL;
665
    QemuOpts *opts = NULL;
666
    int res = -1, lno = 0;
667

    
668
    loc_push_none(&loc);
669
    while (fgets(line, sizeof(line), fp) != NULL) {
670
        loc_set_file(fname, ++lno);
671
        if (line[0] == '\n') {
672
            /* skip empty lines */
673
            continue;
674
        }
675
        if (line[0] == '#') {
676
            /* comment */
677
            continue;
678
        }
679
        if (sscanf(line, "[%63s \"%63[^\"]\"]", group, id) == 2) {
680
            /* group with id */
681
            list = find_list(lists, group);
682
            if (list == NULL)
683
                goto out;
684
            opts = qemu_opts_create(list, id, 1);
685
            continue;
686
        }
687
        if (sscanf(line, "[%63[^]]]", group) == 1) {
688
            /* group without id */
689
            list = find_list(lists, group);
690
            if (list == NULL)
691
                goto out;
692
            opts = qemu_opts_create(list, NULL, 0);
693
            continue;
694
        }
695
        if (sscanf(line, " %63s = \"%1023[^\"]\"", arg, value) == 2) {
696
            /* arg = value */
697
            if (opts == NULL) {
698
                error_report("no group defined");
699
                goto out;
700
            }
701
            if (qemu_opt_set(opts, arg, value) != 0) {
702
                goto out;
703
            }
704
            continue;
705
        }
706
        error_report("parse error");
707
        goto out;
708
    }
709
    if (ferror(fp)) {
710
        error_report("error reading file");
711
        goto out;
712
    }
713
    res = 0;
714
out:
715
    loc_pop(&loc);
716
    return res;
717
}
718

    
719
int qemu_read_config_file(const char *filename)
720
{
721
    FILE *f = fopen(filename, "r");
722
    int ret;
723

    
724
    if (f == NULL) {
725
        return -errno;
726
    }
727

    
728
    ret = qemu_config_parse(f, vm_config_groups, filename);
729
    fclose(f);
730

    
731
    if (ret == 0) {
732
        return 0;
733
    } else {
734
        return -EINVAL;
735
    }
736
}