qemu-config.c

   1 #include "qemu-common.h"
   2 #include "qemu-option.h"
   3 #include "qemu-config.h"
   4 #include "sysemu.h"
   5
   6 QemuOptsList qemu_drive_opts = {
   7     .name = "drive",
   8     .head = QTAILQ_HEAD_INITIALIZER(qemu_drive_opts.head),
   9     .desc = {
  10         {
  11             .name = "bus",
  12             .type = QEMU_OPT_NUMBER,
  13             .help = "bus number",
  14         },{
  15             .name = "unit",
  16             .type = QEMU_OPT_NUMBER,
  17             .help = "unit number (i.e. lun for scsi)",
  18         },{
  19             .name = "if",
  20             .type = QEMU_OPT_STRING,
  21             .help = "interface (ide, scsi, sd, mtd, floppy, pflash, virtio)",
  22         },{
  23             .name = "index",
  24             .type = QEMU_OPT_NUMBER,
  25         },{
  26             .name = "cyls",
  27             .type = QEMU_OPT_NUMBER,
  28             .help = "number of cylinders (ide disk geometry)",
  29         },{
  30             .name = "heads",
  31             .type = QEMU_OPT_NUMBER,
  32             .help = "number of heads (ide disk geometry)",
  33         },{
  34             .name = "secs",
  35             .type = QEMU_OPT_NUMBER,
  36             .help = "number of sectors (ide disk geometry)",
  37         },{
  38             .name = "trans",
  39             .type = QEMU_OPT_STRING,
  40             .help = "chs translation (auto, lba. none)",
  41         },{
  42             .name = "media",
  43             .type = QEMU_OPT_STRING,
  44             .help = "media type (disk, cdrom)",
  45         },{
  46             .name = "snapshot",
  47             .type = QEMU_OPT_BOOL,
  48         },{
  49             .name = "file",
  50             .type = QEMU_OPT_STRING,
  51             .help = "disk image",
  52         },{
  53             .name = "cache",
  54             .type = QEMU_OPT_STRING,
  55             .help = "host cache usage (none, writeback, writethrough)",
  56         },{
  57             .name = "aio",
  58             .type = QEMU_OPT_STRING,
  59             .help = "host AIO implementation (threads, native)",
  60         },{
  61             .name = "format",
  62             .type = QEMU_OPT_STRING,
  63             .help = "disk format (raw, qcow2, ...)",
  64         },{
  65             .name = "serial",
  66             .type = QEMU_OPT_STRING,
  67         },{
  68             .name = "werror",
  69             .type = QEMU_OPT_STRING,
  70         },{
  71             .name = "addr",
  72             .type = QEMU_OPT_STRING,
  73             .help = "pci address (virtio only)",
  74         },{
  75             .name = "readonly",
  76             .type = QEMU_OPT_BOOL,
  77         },{
  78             .name = "boot",
  79             .type = QEMU_OPT_BOOL,
  80             .help = "make this a boot drive",
  81         },
  82         { /* end if list */ }
  83     },
  84 };
  85
  86 QemuOptsList qemu_chardev_opts = {
  87     .name = "chardev",
  88     .head = QTAILQ_HEAD_INITIALIZER(qemu_chardev_opts.head),
  89     .desc = {
  90         {
  91             .name = "backend",
  92             .type = QEMU_OPT_STRING,
  93         },{
  94             .name = "path",
  95             .type = QEMU_OPT_STRING,
  96         },{
  97             .name = "host",
  98             .type = QEMU_OPT_STRING,
  99         },{
 100             .name = "port",
 101             .type = QEMU_OPT_STRING,
 102         },{
 103             .name = "localaddr",
 104             .type = QEMU_OPT_STRING,
 105         },{
 106             .name = "localport",
 107             .type = QEMU_OPT_STRING,
 108         },{
 109             .name = "to",
 110             .type = QEMU_OPT_NUMBER,
 111         },{
 112             .name = "ipv4",
 113             .type = QEMU_OPT_BOOL,
 114         },{
 115             .name = "ipv6",
 116             .type = QEMU_OPT_BOOL,
 117         },{
 118             .name = "wait",
 119             .type = QEMU_OPT_BOOL,
 120         },{
 121             .name = "server",
 122             .type = QEMU_OPT_BOOL,
 123         },{
 124             .name = "delay",
 125             .type = QEMU_OPT_BOOL,
 126         },{
 127             .name = "telnet",
 128             .type = QEMU_OPT_BOOL,
 129         },{
 130             .name = "width",
 131             .type = QEMU_OPT_NUMBER,
 132         },{
 133             .name = "height",
 134             .type = QEMU_OPT_NUMBER,
 135         },{
 136             .name = "cols",
 137             .type = QEMU_OPT_NUMBER,
 138         },{
 139             .name = "rows",
 140             .type = QEMU_OPT_NUMBER,
 141         },{
 142             .name = "mux",
 143             .type = QEMU_OPT_BOOL,
 144         },{
 145             .name = "signal",
 146             .type = QEMU_OPT_BOOL,
 147         },
 148         { /* end if list */ }
 149     },
 150 };
 151
 152 QemuOptsList qemu_device_opts = {
 153     .name = "device",
 154     .head = QTAILQ_HEAD_INITIALIZER(qemu_device_opts.head),
 155     .desc = {
 156         /*
 157          * no elements => accept any
 158          * sanity checking will happen later
 159          * when setting device properties
 160          */
 161         { /* end if list */ }
 162     },
 163 };
 164
 165 QemuOptsList qemu_netdev_opts = {
 166     .name = "netdev",
 167     .head = QTAILQ_HEAD_INITIALIZER(qemu_netdev_opts.head),
 168     .desc = {
 169         /*
 170          * no elements => accept any params
 171          * validation will happen later
 172          */
 173         { /* end of list */ }
 174     },
 175 };
 176
 177 QemuOptsList qemu_net_opts = {
 178     .name = "net",
 179     .head = QTAILQ_HEAD_INITIALIZER(qemu_net_opts.head),
 180     .desc = {
 181         /*
 182          * no elements => accept any params
 183          * validation will happen later
 184          */
 185         { /* end of list */ }
 186     },
 187 };
 188
 189 QemuOptsList qemu_rtc_opts = {
 190     .name = "rtc",
 191     .head = QTAILQ_HEAD_INITIALIZER(qemu_rtc_opts.head),
 192     .desc = {
 193         {
 194             .name = "base",
 195             .type = QEMU_OPT_STRING,
 196         },{
 197             .name = "clock",
 198             .type = QEMU_OPT_STRING,
 199 #ifdef TARGET_I386
 200         },{
 201             .name = "driftfix",
 202             .type = QEMU_OPT_STRING,
 203 #endif
 204         },
 205         { /* end if list */ }
 206     },
 207 };
 208
 209 static QemuOptsList *lists[] = {
 210     &qemu_drive_opts,
 211     &qemu_chardev_opts,
 212     &qemu_device_opts,
 213     &qemu_netdev_opts,
 214     &qemu_net_opts,
 215     &qemu_rtc_opts,
 216     NULL,
 217 };
 218
 219 int qemu_set_option(const char *str)
 220 {
 221     char group[64], id[64], arg[64];
 222     QemuOpts *opts;
 223     int i, rc, offset;
 224
 225     rc = sscanf(str, "%63[^.].%63[^.].%63[^=]%n", group, id, arg, &offset);
 226     if (rc < 3 || str[offset] != '=') {
 227         qemu_error("can't parse: \"%s\"\n", str);
 228         return -1;
 229     }
 230
 231     for (i = 0; lists[i] != NULL; i++) {
 232         if (strcmp(lists[i]->name, group) == 0)
 233             break;
 234     }
 235     if (lists[i] == NULL) {
 236         qemu_error("there is no option group \"%s\"\n", group);
 237         return -1;
 238     }
 239
 240     opts = qemu_opts_find(lists[i], id);
 241     if (!opts) {
 242         qemu_error("there is no %s \"%s\" defined\n",
 243                 lists[i]->name, id);
 244         return -1;
 245     }
 246
 247     if (qemu_opt_set(opts, arg, str+offset+1) == -1) {
 248         return -1;
 249     }
 250     return 0;
 251 }
 252