| #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; |
| } |
| } |
