qemu-config.c

   1 #include "qemu-common.h"
   2 #include "qemu-option.h"
   3 #include "qemu-config.h"
   4
   5 QemuOptsList qemu_drive_opts = {
   6     .name = "drive",
   7     .head = QTAILQ_HEAD_INITIALIZER(qemu_drive_opts.head),
   8     .desc = {
   9         {
  10             .name = "bus",
  11             .type = QEMU_OPT_NUMBER,
  12             .help = "bus number",
  13         },{
  14             .name = "unit",
  15             .type = QEMU_OPT_NUMBER,
  16             .help = "unit number (i.e. lun for scsi)",
  17         },{
  18             .name = "if",
  19             .type = QEMU_OPT_STRING,
  20             .help = "interface (ide, scsi, sd, mtd, floppy, pflash, virtio)",
  21         },{
  22             .name = "index",
  23             .type = QEMU_OPT_NUMBER,
  24         },{
  25             .name = "cyls",
  26             .type = QEMU_OPT_NUMBER,
  27             .help = "number of cylinders (ide disk geometry)",
  28         },{
  29             .name = "heads",
  30             .type = QEMU_OPT_NUMBER,
  31             .help = "number of heads (ide disk geometry)",
  32         },{
  33             .name = "secs",
  34             .type = QEMU_OPT_NUMBER,
  35             .help = "number of sectors (ide disk geometry)",
  36         },{
  37             .name = "trans",
  38             .type = QEMU_OPT_STRING,
  39             .help = "chs translation (auto, lba. none)",
  40         },{
  41             .name = "media",
  42             .type = QEMU_OPT_STRING,
  43             .help = "media type (disk, cdrom)",
  44         },{
  45             .name = "snapshot",
  46             .type = QEMU_OPT_BOOL,
  47         },{
  48             .name = "file",
  49             .type = QEMU_OPT_STRING,
  50             .help = "disk image",
  51         },{
  52             .name = "cache",
  53             .type = QEMU_OPT_STRING,
  54             .help = "host cache usage (none, writeback, writethrough)",
  55         },{
  56             .name = "aio",
  57             .type = QEMU_OPT_STRING,
  58             .help = "host AIO implementation (threads, native)",
  59         },{
  60             .name = "format",
  61             .type = QEMU_OPT_STRING,
  62             .help = "disk format (raw, qcow2, ...)",
  63         },{
  64             .name = "serial",
  65             .type = QEMU_OPT_STRING,
  66         },{
  67             .name = "werror",
  68             .type = QEMU_OPT_STRING,
  69         },{
  70             .name = "addr",
  71             .type = QEMU_OPT_STRING,
  72             .help = "pci address (virtio only)",
  73         },{
  74             .name = "boot",
  75             .type = QEMU_OPT_BOOL,
  76             .help = "make this a boot drive",
  77         },
  78         { /* end if list */ }
  79     },
  80 };
  81
  82 QemuOptsList qemu_chardev_opts = {
  83     .name = "chardev",
  84     .head = QTAILQ_HEAD_INITIALIZER(qemu_chardev_opts.head),
  85     .desc = {
  86         {
  87             .name = "backend",
  88             .type = QEMU_OPT_STRING,
  89         },{
  90             .name = "path",
  91             .type = QEMU_OPT_STRING,
  92         },{
  93             .name = "host",
  94             .type = QEMU_OPT_STRING,
  95         },{
  96             .name = "port",
  97             .type = QEMU_OPT_STRING,
  98         },{
  99             .name = "localaddr",
 100             .type = QEMU_OPT_STRING,
 101         },{
 102             .name = "localport",
 103             .type = QEMU_OPT_STRING,
 104         },{
 105             .name = "to",
 106             .type = QEMU_OPT_NUMBER,
 107         },{
 108             .name = "ipv4",
 109             .type = QEMU_OPT_BOOL,
 110         },{
 111             .name = "ipv6",
 112             .type = QEMU_OPT_BOOL,
 113         },{
 114             .name = "wait",
 115             .type = QEMU_OPT_BOOL,
 116         },{
 117             .name = "server",
 118             .type = QEMU_OPT_BOOL,
 119         },{
 120             .name = "delay",
 121             .type = QEMU_OPT_BOOL,
 122         },{
 123             .name = "telnet",
 124             .type = QEMU_OPT_BOOL,
 125         },{
 126             .name = "width",
 127             .type = QEMU_OPT_NUMBER,
 128         },{
 129             .name = "height",
 130             .type = QEMU_OPT_NUMBER,
 131         },{
 132             .name = "cols",
 133             .type = QEMU_OPT_NUMBER,
 134         },{
 135             .name = "rows",
 136             .type = QEMU_OPT_NUMBER,
 137         },{
 138             .name = "mux",
 139             .type = QEMU_OPT_BOOL,
 140         },
 141         { /* end if list */ }
 142     },
 143 };
 144
 145 QemuOptsList qemu_device_opts = {
 146     .name = "device",
 147     .head = QTAILQ_HEAD_INITIALIZER(qemu_device_opts.head),
 148     .desc = {
 149         /*
 150          * no elements => accept any
 151          * sanity checking will happen later
 152          * when setting device properties
 153          */
 154         { /* end if list */ }
 155     },
 156 };
 157
 158 static QemuOptsList *lists[] = {
 159     &qemu_drive_opts,
 160     &qemu_chardev_opts,
 161     &qemu_device_opts,
 162     NULL,
 163 };
 164
 165 int qemu_set_option(const char *str)
 166 {
 167     char group[64], id[64], arg[64];
 168     QemuOpts *opts;
 169     int i, rc, offset;
 170
 171     rc = sscanf(str, "%63[^.].%63[^.].%63[^=]%n", group, id, arg, &offset);
 172     if (rc < 3 || str[offset] != '=') {
 173         fprintf(stderr, "can't parse: \"%s\"\n", str);
 174         return -1;
 175     }
 176
 177     for (i = 0; lists[i] != NULL; i++) {
 178         if (strcmp(lists[i]->name, group) == 0)
 179             break;
 180     }
 181     if (lists[i] == NULL) {
 182         fprintf(stderr, "there is no option group \"%s\"\n", group);
 183         return -1;
 184     }
 185
 186     opts = qemu_opts_find(lists[i], id);
 187     if (!opts) {
 188         fprintf(stderr, "there is no %s \"%s\" defined\n",
 189                 lists[i]->name, id);
 190         return -1;
 191     }
 192
 193     if (-1 == qemu_opt_set(opts, arg, str+offset+1)) {
 194         fprintf(stderr, "failed to set \"%s\" for %s \"%s\"\n",
 195                 arg, lists[i]->name, id);
 196         return -1;
 197     }
 198     return 0;
 199 }
 200