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         { /* end if list */ }
  76     },
  77 };
  78
  79 QemuOptsList qemu_chardev_opts = {
  80     .name = "chardev",
  81     .head = QTAILQ_HEAD_INITIALIZER(qemu_chardev_opts.head),
  82     .desc = {
  83         {
  84             .name = "backend",
  85             .type = QEMU_OPT_STRING,
  86         },{
  87             .name = "path",
  88             .type = QEMU_OPT_STRING,
  89         },{
  90             .name = "host",
  91             .type = QEMU_OPT_STRING,
  92         },{
  93             .name = "port",
  94             .type = QEMU_OPT_STRING,
  95         },{
  96             .name = "localaddr",
  97             .type = QEMU_OPT_STRING,
  98         },{
  99             .name = "localport",
 100             .type = QEMU_OPT_STRING,
 101         },{
 102             .name = "to",
 103             .type = QEMU_OPT_NUMBER,
 104         },{
 105             .name = "ipv4",
 106             .type = QEMU_OPT_BOOL,
 107         },{
 108             .name = "ipv6",
 109             .type = QEMU_OPT_BOOL,
 110         },{
 111             .name = "wait",
 112             .type = QEMU_OPT_BOOL,
 113         },{
 114             .name = "server",
 115             .type = QEMU_OPT_BOOL,
 116         },{
 117             .name = "delay",
 118             .type = QEMU_OPT_BOOL,
 119         },{
 120             .name = "telnet",
 121             .type = QEMU_OPT_BOOL,
 122         },{
 123             .name = "width",
 124             .type = QEMU_OPT_NUMBER,
 125         },{
 126             .name = "height",
 127             .type = QEMU_OPT_NUMBER,
 128         },{
 129             .name = "cols",
 130             .type = QEMU_OPT_NUMBER,
 131         },{
 132             .name = "rows",
 133             .type = QEMU_OPT_NUMBER,
 134         },{
 135             .name = "mux",
 136             .type = QEMU_OPT_BOOL,
 137         },
 138         { /* end if list */ }
 139     },
 140 };
 141
 142 QemuOptsList qemu_device_opts = {
 143     .name = "device",
 144     .head = QTAILQ_HEAD_INITIALIZER(qemu_device_opts.head),
 145     .desc = {
 146         /*
 147          * no elements => accept any
 148          * sanity checking will happen later
 149          * when setting device properties
 150          */
 151         { /* end if list */ }
 152     },
 153 };
 154
 155 QemuOptsList qemu_rtc_opts = {
 156     .name = "rtc",
 157     .head = QTAILQ_HEAD_INITIALIZER(qemu_rtc_opts.head),
 158     .desc = {
 159         {
 160             .name = "base",
 161             .type = QEMU_OPT_STRING,
 162         },{
 163             .name = "clock",
 164             .type = QEMU_OPT_STRING,
 165 #ifdef TARGET_I386
 166         },{
 167             .name = "driftfix",
 168             .type = QEMU_OPT_STRING,
 169 #endif
 170         },
 171         { /* end if list */ }
 172     },
 173 };
 174
 175 static QemuOptsList *lists[] = {
 176     &qemu_drive_opts,
 177     &qemu_chardev_opts,
 178     &qemu_device_opts,
 179     &qemu_rtc_opts,
 180     NULL,
 181 };
 182
 183 int qemu_set_option(const char *str)
 184 {
 185     char group[64], id[64], arg[64];
 186     QemuOpts *opts;
 187     int i, rc, offset;
 188
 189     rc = sscanf(str, "%63[^.].%63[^.].%63[^=]%n", group, id, arg, &offset);
 190     if (rc < 3 || str[offset] != '=') {
 191         qemu_error("can't parse: \"%s\"\n", str);
 192         return -1;
 193     }
 194
 195     for (i = 0; lists[i] != NULL; i++) {
 196         if (strcmp(lists[i]->name, group) == 0)
 197             break;
 198     }
 199     if (lists[i] == NULL) {
 200         qemu_error("there is no option group \"%s\"\n", group);
 201         return -1;
 202     }
 203
 204     opts = qemu_opts_find(lists[i], id);
 205     if (!opts) {
 206         qemu_error("there is no %s \"%s\" defined\n",
 207                 lists[i]->name, id);
 208         return -1;
 209     }
 210
 211     if (qemu_opt_set(opts, arg, str+offset+1) == -1) {
 212         qemu_error("failed to set \"%s\" for %s \"%s\"\n",
 213                 arg, lists[i]->name, id);
 214         return -1;
 215     }
 216     return 0;
 217 }
 218