/* * QEMU System Emulator * * Copyright (c) 2003-2008 Fabrice Bellard * * Permission is hereby granted, free of charge, to any person obtaining a copy * of this software and associated documentation files (the "Software"), to deal * in the Software without restriction, including without limitation the rights * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell * copies of the Software, and to permit persons to whom the Software is * furnished to do so, subject to the following conditions: * * The above copyright notice and this permission notice shall be included in * all copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN * THE SOFTWARE. */ #include "qemu/osdep.h" #include "qemu/help-texts.h" #include "qemu/datadir.h" #include "qemu/units.h" #include "exec/cpu-common.h" #include "exec/page-vary.h" #include "hw/qdev-properties.h" #include "qapi/compat-policy.h" #include "qapi/error.h" #include "qapi/qmp/qdict.h" #include "qapi/qmp/qstring.h" #include "qapi/qmp/qjson.h" #include "qemu-version.h" #include "qemu/cutils.h" #include "qemu/help_option.h" #include "qemu/hw-version.h" #include "qemu/uuid.h" #include "sysemu/reset.h" #include "sysemu/runstate.h" #include "sysemu/runstate-action.h" #include "sysemu/seccomp.h" #include "sysemu/tcg.h" #include "sysemu/xen.h" #include "qemu/error-report.h" #include "qemu/sockets.h" #include "qemu/accel.h" #include "qemu/async-teardown.h" #include "hw/usb.h" #include "hw/isa/isa.h" #include "hw/scsi/scsi.h" #include "hw/display/vga.h" #include "hw/firmware/smbios.h" #include "hw/acpi/acpi.h" #include "hw/xen/xen.h" #include "hw/loader.h" #include "monitor/qdev.h" #include "net/net.h" #include "net/slirp.h" #include "monitor/monitor.h" #include "ui/console.h" #include "ui/input.h" #include "sysemu/sysemu.h" #include "sysemu/numa.h" #include "sysemu/hostmem.h" #include "exec/gdbstub.h" #include "qemu/timer.h" #include "chardev/char.h" #include "qemu/bitmap.h" #include "qemu/log.h" #include "sysemu/blockdev.h" #include "hw/block/block.h" #include "hw/i386/x86.h" #include "hw/i386/pc.h" #include "migration/misc.h" #include "migration/snapshot.h" #include "sysemu/tpm.h" #include "sysemu/dma.h" #include "hw/audio/soundhw.h" #include "audio/audio.h" #include "sysemu/cpus.h" #include "sysemu/cpu-timers.h" #include "migration/colo.h" #include "migration/postcopy-ram.h" #include "sysemu/kvm.h" #include "qapi/qobject-input-visitor.h" #include "qemu/option.h" #include "qemu/config-file.h" #include "qemu/main-loop.h" #ifdef CONFIG_VIRTFS #include "fsdev/qemu-fsdev.h" #endif #include "sysemu/qtest.h" #ifdef CONFIG_TCG #include "accel/tcg/perf.h" #endif #include "disas/disas.h" #include "trace.h" #include "trace/control.h" #include "qemu/plugin.h" #include "qemu/queue.h" #include "sysemu/arch_init.h" #include "exec/confidential-guest-support.h" #include "ui/qemu-spice.h" #include "qapi/string-input-visitor.h" #include "qapi/opts-visitor.h" #include "qapi/clone-visitor.h" #include "qom/object_interfaces.h" #include "semihosting/semihost.h" #include "crypto/init.h" #include "sysemu/replay.h" #include "qapi/qapi-events-run-state.h" #include "qapi/qapi-types-audio.h" #include "qapi/qapi-visit-audio.h" #include "qapi/qapi-visit-block-core.h" #include "qapi/qapi-visit-compat.h" #include "qapi/qapi-visit-machine.h" #include "qapi/qapi-visit-ui.h" #include "qapi/qapi-commands-block-core.h" #include "qapi/qapi-commands-migration.h" #include "qapi/qapi-commands-misc.h" #include "qapi/qapi-visit-qom.h" #include "qapi/qapi-commands-ui.h" #include "block/qdict.h" #include "qapi/qmp/qerror.h" #include "sysemu/iothread.h" #include "qemu/guest-random.h" #include "qemu/keyval.h" #define MAX_VIRTIO_CONSOLES 1 typedef struct BlockdevOptionsQueueEntry { BlockdevOptions *bdo; Location loc; QSIMPLEQ_ENTRY(BlockdevOptionsQueueEntry) entry; } BlockdevOptionsQueueEntry; typedef QSIMPLEQ_HEAD(, BlockdevOptionsQueueEntry) BlockdevOptionsQueue; typedef struct ObjectOption { ObjectOptions *opts; QTAILQ_ENTRY(ObjectOption) next; } ObjectOption; typedef struct DeviceOption { QDict *opts; Location loc; QTAILQ_ENTRY(DeviceOption) next; } DeviceOption; static const char *cpu_option; static const char *mem_path; static const char *incoming; static const char *loadvm; static const char *accelerators; static bool have_custom_ram_size; static const char *ram_memdev_id; static QDict *machine_opts_dict; static QTAILQ_HEAD(, ObjectOption) object_opts = QTAILQ_HEAD_INITIALIZER(object_opts); static QTAILQ_HEAD(, DeviceOption) device_opts = QTAILQ_HEAD_INITIALIZER(device_opts); static int display_remote; static int snapshot; static bool preconfig_requested; static QemuPluginList plugin_list = QTAILQ_HEAD_INITIALIZER(plugin_list); static BlockdevOptionsQueue bdo_queue = QSIMPLEQ_HEAD_INITIALIZER(bdo_queue); static bool nographic = false; static int mem_prealloc; /* force preallocation of physical target memory */ static const char *vga_model = NULL; static DisplayOptions dpy; static int num_serial_hds; static Chardev **serial_hds; static const char *log_mask; static const char *log_file; static bool list_data_dirs; static const char *qtest_chrdev; static const char *qtest_log; static bool opt_one_insn_per_tb; static int has_defaults = 1; static int default_audio = 1; static int default_serial = 1; static int default_parallel = 1; static int default_monitor = 1; static int default_floppy = 1; static int default_cdrom = 1; static int default_sdcard = 1; static int default_vga = 1; static int default_net = 1; static struct { const char *driver; int *flag; } default_list[] = { { .driver = "isa-serial", .flag = &default_serial }, { .driver = "isa-parallel", .flag = &default_parallel }, { .driver = "isa-fdc", .flag = &default_floppy }, { .driver = "floppy", .flag = &default_floppy }, { .driver = "ide-cd", .flag = &default_cdrom }, { .driver = "ide-hd", .flag = &default_cdrom }, { .driver = "scsi-cd", .flag = &default_cdrom }, { .driver = "scsi-hd", .flag = &default_cdrom }, { .driver = "VGA", .flag = &default_vga }, { .driver = "isa-vga", .flag = &default_vga }, { .driver = "cirrus-vga", .flag = &default_vga }, { .driver = "isa-cirrus-vga", .flag = &default_vga }, { .driver = "vmware-svga", .flag = &default_vga }, { .driver = "qxl-vga", .flag = &default_vga }, { .driver = "virtio-vga", .flag = &default_vga }, { .driver = "ati-vga", .flag = &default_vga }, { .driver = "vhost-user-vga", .flag = &default_vga }, { .driver = "virtio-vga-gl", .flag = &default_vga }, { .driver = "virtio-vga-rutabaga", .flag = &default_vga }, }; static QemuOptsList qemu_rtc_opts = { .name = "rtc", .head = QTAILQ_HEAD_INITIALIZER(qemu_rtc_opts.head), .merge_lists = true, .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_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_accel_opts = { .name = "accel", .implied_opt_name = "accel", .head = QTAILQ_HEAD_INITIALIZER(qemu_accel_opts.head), .desc = { /* * no elements => accept any * sanity checking will happen later * when setting accelerator properties */ { } }, }; static QemuOptsList qemu_boot_opts = { .name = "boot-opts", .implied_opt_name = "order", .merge_lists = true, .head = QTAILQ_HEAD_INITIALIZER(qemu_boot_opts.head), .desc = { { .name = "order", .type = QEMU_OPT_STRING, }, { .name = "once", .type = QEMU_OPT_STRING, }, { .name = "menu", .type = QEMU_OPT_BOOL, }, { .name = "splash", .type = QEMU_OPT_STRING, }, { .name = "splash-time", .type = QEMU_OPT_NUMBER, }, { .name = "reboot-timeout", .type = QEMU_OPT_NUMBER, }, { .name = "strict", .type = QEMU_OPT_BOOL, }, { /*End of list */ } }, }; static QemuOptsList qemu_add_fd_opts = { .name = "add-fd", .head = QTAILQ_HEAD_INITIALIZER(qemu_add_fd_opts.head), .desc = { { .name = "fd", .type = QEMU_OPT_NUMBER, .help = "file descriptor of which a duplicate is added to fd set", },{ .name = "set", .type = QEMU_OPT_NUMBER, .help = "ID of the fd set to add fd to", },{ .name = "opaque", .type = QEMU_OPT_STRING, .help = "free-form string used to describe fd", }, { /* end of list */ } }, }; static QemuOptsList qemu_object_opts = { .name = "object", .implied_opt_name = "qom-type", .head = QTAILQ_HEAD_INITIALIZER(qemu_object_opts.head), .desc = { { } }, }; static QemuOptsList qemu_tpmdev_opts = { .name = "tpmdev", .implied_opt_name = "type", .head = QTAILQ_HEAD_INITIALIZER(qemu_tpmdev_opts.head), .desc = { /* options are defined in the TPM backends */ { /* end of list */ } }, }; static QemuOptsList qemu_overcommit_opts = { .name = "overcommit", .head = QTAILQ_HEAD_INITIALIZER(qemu_overcommit_opts.head), .desc = { { .name = "mem-lock", .type = QEMU_OPT_BOOL, }, { .name = "cpu-pm", .type = QEMU_OPT_BOOL, }, { /* end of list */ } }, }; static QemuOptsList qemu_msg_opts = { .name = "msg", .head = QTAILQ_HEAD_INITIALIZER(qemu_msg_opts.head), .desc = { { .name = "timestamp", .type = QEMU_OPT_BOOL, }, { .name = "guest-name", .type = QEMU_OPT_BOOL, .help = "Prepends guest name for error messages but only if " "-name guest is set otherwise option is ignored\n", }, { /* end of list */ } }, }; static QemuOptsList qemu_name_opts = { .name = "name", .implied_opt_name = "guest", .merge_lists = true, .head = QTAILQ_HEAD_INITIALIZER(qemu_name_opts.head), .desc = { { .name = "guest", .type = QEMU_OPT_STRING, .help = "Sets the name of the guest.\n" "This name will be displayed in the SDL window caption.\n" "The name will also be used for the VNC server", }, { .name = "process", .type = QEMU_OPT_STRING, .help = "Sets the name of the QEMU process, as shown in top etc", }, { .name = "debug-threads", .type = QEMU_OPT_BOOL, .help = "When enabled, name the individual threads; defaults off.\n" "NOTE: The thread names are for debugging and not a\n" "stable API.", }, { /* End of list */ } }, }; static QemuOptsList qemu_mem_opts = { .name = "memory", .implied_opt_name = "size", .head = QTAILQ_HEAD_INITIALIZER(qemu_mem_opts.head), .merge_lists = true, .desc = { { .name = "size", .type = QEMU_OPT_SIZE, }, { .name = "slots", .type = QEMU_OPT_NUMBER, }, { .name = "maxmem", .type = QEMU_OPT_SIZE, }, { /* end of list */ } }, }; static QemuOptsList qemu_icount_opts = { .name = "icount", .implied_opt_name = "shift", .merge_lists = true, .head = QTAILQ_HEAD_INITIALIZER(qemu_icount_opts.head), .desc = { { .name = "shift", .type = QEMU_OPT_STRING, }, { .name = "align", .type = QEMU_OPT_BOOL, }, { .name = "sleep", .type = QEMU_OPT_BOOL, }, { .name = "rr", .type = QEMU_OPT_STRING, }, { .name = "rrfile", .type = QEMU_OPT_STRING, }, { .name = "rrsnapshot", .type = QEMU_OPT_STRING, }, { /* end of list */ } }, }; static QemuOptsList qemu_fw_cfg_opts = { .name = "fw_cfg", .implied_opt_name = "name", .head = QTAILQ_HEAD_INITIALIZER(qemu_fw_cfg_opts.head), .desc = { { .name = "name", .type = QEMU_OPT_STRING, .help = "Sets the fw_cfg name of the blob to be inserted", }, { .name = "file", .type = QEMU_OPT_STRING, .help = "Sets the name of the file from which " "the fw_cfg blob will be loaded", }, { .name = "string", .type = QEMU_OPT_STRING, .help = "Sets content of the blob to be inserted from a string", }, { .name = "gen_id", .type = QEMU_OPT_STRING, .help = "Sets id of the object generating the fw_cfg blob " "to be inserted", }, { /* end of list */ } }, }; static QemuOptsList qemu_action_opts = { .name = "action", .merge_lists = true, .head = QTAILQ_HEAD_INITIALIZER(qemu_action_opts.head), .desc = { { .name = "shutdown", .type = QEMU_OPT_STRING, },{ .name = "reboot", .type = QEMU_OPT_STRING, },{ .name = "panic", .type = QEMU_OPT_STRING, },{ .name = "watchdog", .type = QEMU_OPT_STRING, }, { /* end of list */ } }, }; const char *qemu_get_vm_name(void) { return qemu_name; } static void default_driver_disable(const char *driver) { int i; if (!driver) { return; } for (i = 0; i < ARRAY_SIZE(default_list); i++) { if (strcmp(default_list[i].driver, driver) != 0) continue; *(default_list[i].flag) = 0; } } static int default_driver_check(void *opaque, QemuOpts *opts, Error **errp) { const char *driver = qemu_opt_get(opts, "driver"); default_driver_disable(driver); return 0; } static void default_driver_check_json(void) { DeviceOption *opt; QTAILQ_FOREACH(opt, &device_opts, next) { const char *driver = qdict_get_try_str(opt->opts, "driver"); default_driver_disable(driver); } } static int parse_name(void *opaque, QemuOpts *opts, Error **errp) { const char *proc_name; if (qemu_opt_get(opts, "debug-threads")) { qemu_thread_naming(qemu_opt_get_bool(opts, "debug-threads", false)); } qemu_name = qemu_opt_get(opts, "guest"); proc_name = qemu_opt_get(opts, "process"); if (proc_name) { os_set_proc_name(proc_name); } return 0; } bool defaults_enabled(void) { return has_defaults; } #ifndef _WIN32 static int parse_add_fd(void *opaque, QemuOpts *opts, Error **errp) { int fd, dupfd, flags; int64_t fdset_id; const char *fd_opaque = NULL; AddfdInfo *fdinfo; fd = qemu_opt_get_number(opts, "fd", -1); fdset_id = qemu_opt_get_number(opts, "set", -1); fd_opaque = qemu_opt_get(opts, "opaque"); if (fd < 0) { error_setg(errp, "fd option is required and must be non-negative"); return -1; } if (fd <= STDERR_FILENO) { error_setg(errp, "fd cannot be a standard I/O stream"); return -1; } /* * All fds inherited across exec() necessarily have FD_CLOEXEC * clear, while qemu sets FD_CLOEXEC on all other fds used internally. */ flags = fcntl(fd, F_GETFD); if (flags == -1 || (flags & FD_CLOEXEC)) { error_setg(errp, "fd is not valid or already in use"); return -1; } if (fdset_id < 0) { error_setg(errp, "set option is required and must be non-negative"); return -1; } #ifdef F_DUPFD_CLOEXEC dupfd = fcntl(fd, F_DUPFD_CLOEXEC, 0); #else dupfd = dup(fd); if (dupfd != -1) { qemu_set_cloexec(dupfd); } #endif if (dupfd == -1) { error_setg(errp, "error duplicating fd: %s", strerror(errno)); return -1; } /* add the duplicate fd, and optionally the opaque string, to the fd set */ fdinfo = monitor_fdset_add_fd(dupfd, true, fdset_id, fd_opaque, &error_abort); g_free(fdinfo); return 0; } static int cleanup_add_fd(void *opaque, QemuOpts *opts, Error **errp) { int fd; fd = qemu_opt_get_number(opts, "fd", -1); close(fd); return 0; } #endif /***********************************************************/ /* QEMU Block devices */ #define HD_OPTS "media=disk" #define CDROM_OPTS "media=cdrom" #define FD_OPTS "" #define PFLASH_OPTS "" #define MTD_OPTS "" #define SD_OPTS "" static int drive_init_func(void *opaque, QemuOpts *opts, Error **errp) { BlockInterfaceType *block_default_type = opaque; return drive_new(opts, *block_default_type, errp) == NULL; } static int drive_enable_snapshot(void *opaque, QemuOpts *opts, Error **errp) { if (qemu_opt_get(opts, "snapshot") == NULL) { qemu_opt_set(opts, "snapshot", "on", &error_abort); } return 0; } static void default_drive(int enable, int snapshot, BlockInterfaceType type, int index, const char *optstr) { QemuOpts *opts; DriveInfo *dinfo; if (!enable || drive_get_by_index(type, index)) { return; } opts = drive_add(type, index, NULL, optstr); if (snapshot) { drive_enable_snapshot(NULL, opts, NULL); } dinfo = drive_new(opts, type, &error_abort); dinfo->is_default = true; } static void configure_blockdev(BlockdevOptionsQueue *bdo_queue, MachineClass *machine_class, int snapshot) { /* * If the currently selected machine wishes to override the * units-per-bus property of its default HBA interface type, do so * now. */ if (machine_class->units_per_default_bus) { override_max_devs(machine_class->block_default_type, machine_class->units_per_default_bus); } /* open the virtual block devices */ while (!QSIMPLEQ_EMPTY(bdo_queue)) { BlockdevOptionsQueueEntry *bdo = QSIMPLEQ_FIRST(bdo_queue); QSIMPLEQ_REMOVE_HEAD(bdo_queue, entry); loc_push_restore(&bdo->loc); qmp_blockdev_add(bdo->bdo, &error_fatal); loc_pop(&bdo->loc); qapi_free_BlockdevOptions(bdo->bdo); g_free(bdo); } if (snapshot) { qemu_opts_foreach(qemu_find_opts("drive"), drive_enable_snapshot, NULL, NULL); } if (qemu_opts_foreach(qemu_find_opts("drive"), drive_init_func, &machine_class->block_default_type, &error_fatal)) { /* We printed help */ exit(0); } default_drive(default_cdrom, snapshot, machine_class->block_default_type, 2, CDROM_OPTS); default_drive(default_floppy, snapshot, IF_FLOPPY, 0, FD_OPTS); default_drive(default_sdcard, snapshot, IF_SD, 0, SD_OPTS); } static QemuOptsList qemu_smp_opts = { .name = "smp-opts", .implied_opt_name = "cpus", .merge_lists = true, .head = QTAILQ_HEAD_INITIALIZER(qemu_smp_opts.head), .desc = { { .name = "cpus", .type = QEMU_OPT_NUMBER, }, { .name = "drawers", .type = QEMU_OPT_NUMBER, }, { .name = "books", .type = QEMU_OPT_NUMBER, }, { .name = "sockets", .type = QEMU_OPT_NUMBER, }, { .name = "dies", .type = QEMU_OPT_NUMBER, }, { .name = "clusters", .type = QEMU_OPT_NUMBER, }, { .name = "cores", .type = QEMU_OPT_NUMBER, }, { .name = "threads", .type = QEMU_OPT_NUMBER, }, { .name = "maxcpus", .type = QEMU_OPT_NUMBER, }, { /*End of list */ } }, }; #if defined(CONFIG_POSIX) static QemuOptsList qemu_run_with_opts = { .name = "run-with", .head = QTAILQ_HEAD_INITIALIZER(qemu_run_with_opts.head), .desc = { #if defined(CONFIG_LINUX) { .name = "async-teardown", .type = QEMU_OPT_BOOL, }, #endif { .name = "chroot", .type = QEMU_OPT_STRING, }, { /* end of list */ } }, }; #define qemu_add_run_with_opts() qemu_add_opts(&qemu_run_with_opts) #else #define qemu_add_run_with_opts() #endif /* CONFIG_POSIX */ static void realtime_init(void) { if (enable_mlock) { if (os_mlock() < 0) { error_report("locking memory failed"); exit(1); } } } static void configure_msg(QemuOpts *opts) { message_with_timestamp = qemu_opt_get_bool(opts, "timestamp", false); error_with_guestname = qemu_opt_get_bool(opts, "guest-name", false); } /***********************************************************/ /* USB devices */ static int usb_device_add(const char *devname) { USBDevice *dev = NULL; if (!machine_usb(current_machine)) { return -1; } dev = usbdevice_create(devname); if (!dev) return -1; return 0; } static int usb_parse(const char *cmdline) { int r; r = usb_device_add(cmdline); if (r < 0) { error_report("could not add USB device '%s'", cmdline); } return r; } /***********************************************************/ /* machine registration */ static MachineClass *find_machine(const char *name, GSList *machines) { GSList *el; for (el = machines; el; el = el->next) { MachineClass *mc = el->data; if (!strcmp(mc->name, name) || !g_strcmp0(mc->alias, name)) { return mc; } } return NULL; } static MachineClass *find_default_machine(GSList *machines) { GSList *el; MachineClass *default_machineclass = NULL; for (el = machines; el; el = el->next) { MachineClass *mc = el->data; if (mc->is_default) { assert(default_machineclass == NULL && "Multiple default machines"); default_machineclass = mc; } } return default_machineclass; } static void version(void) { printf("QEMU emulator version " QEMU_FULL_VERSION "\n" QEMU_COPYRIGHT "\n"); } static void help(int exitcode) { version(); printf("usage: %s [options] [disk_image]\n\n" "'disk_image' is a raw hard disk image for IDE hard disk 0\n\n", g_get_prgname()); #define DEF(option, opt_arg, opt_enum, opt_help, arch_mask) \ if ((arch_mask) & arch_type) \ fputs(opt_help, stdout); #define ARCHHEADING(text, arch_mask) \ if ((arch_mask) & arch_type) \ puts(stringify(text)); #define DEFHEADING(text) ARCHHEADING(text, QEMU_ARCH_ALL) #include "qemu-options.def" printf("\nDuring emulation, the following keys are useful:\n" "ctrl-alt-f toggle full screen\n" "ctrl-alt-n switch to virtual console 'n'\n" "ctrl-alt toggle mouse and keyboard grab\n" "\n" "When using -nographic, press 'ctrl-a h' to get some help.\n" "\n" QEMU_HELP_BOTTOM "\n"); exit(exitcode); } enum { #define DEF(option, opt_arg, opt_enum, opt_help, arch_mask) \ opt_enum, #define DEFHEADING(text) #define ARCHHEADING(text, arch_mask) #include "qemu-options.def" }; #define HAS_ARG 0x0001 typedef struct QEMUOption { const char *name; int flags; int index; uint32_t arch_mask; } QEMUOption; static const QEMUOption qemu_options[] = { { "h", 0, QEMU_OPTION_h, QEMU_ARCH_ALL }, #define DEF(option, opt_arg, opt_enum, opt_help, arch_mask) \ { option, opt_arg, opt_enum, arch_mask }, #define DEFHEADING(text) #define ARCHHEADING(text, arch_mask) #include "qemu-options.def" { /* end of list */ } }; typedef struct VGAInterfaceInfo { const char *opt_name; /* option name */ const char *name; /* human-readable name */ /* Class names indicating that support is available. * If no class is specified, the interface is always available */ const char *class_names[2]; } VGAInterfaceInfo; static const VGAInterfaceInfo vga_interfaces[VGA_TYPE_MAX] = { [VGA_NONE] = { .opt_name = "none", .name = "no graphic card", }, [VGA_STD] = { .opt_name = "std", .name = "standard VGA", .class_names = { "VGA", "isa-vga" }, }, [VGA_CIRRUS] = { .opt_name = "cirrus", .name = "Cirrus VGA", .class_names = { "cirrus-vga", "isa-cirrus-vga" }, }, [VGA_VMWARE] = { .opt_name = "vmware", .name = "VMWare SVGA", .class_names = { "vmware-svga" }, }, [VGA_VIRTIO] = { .opt_name = "virtio", .name = "Virtio VGA", .class_names = { "virtio-vga" }, }, [VGA_QXL] = { .opt_name = "qxl", .name = "QXL VGA", .class_names = { "qxl-vga" }, }, [VGA_TCX] = { .opt_name = "tcx", .name = "TCX framebuffer", .class_names = { "sun-tcx" }, }, [VGA_CG3] = { .opt_name = "cg3", .name = "CG3 framebuffer", .class_names = { "cgthree" }, }, #ifdef CONFIG_XEN_BACKEND [VGA_XENFB] = { .opt_name = "xenfb", .name = "Xen paravirtualized framebuffer", }, #endif }; static bool vga_interface_available(VGAInterfaceType t) { const VGAInterfaceInfo *ti = &vga_interfaces[t]; assert(t < VGA_TYPE_MAX); return !ti->class_names[0] || module_object_class_by_name(ti->class_names[0]) || module_object_class_by_name(ti->class_names[1]); } static const char * get_default_vga_model(const MachineClass *machine_class) { if (machine_class->default_display) { for (int t = 0; t < VGA_TYPE_MAX; t++) { const VGAInterfaceInfo *ti = &vga_interfaces[t]; if (ti->opt_name && vga_interface_available(t) && g_str_equal(ti->opt_name, machine_class->default_display)) { return machine_class->default_display; } } warn_report_once("Default display '%s' is not available in this binary", machine_class->default_display); return NULL; } else if (vga_interface_available(VGA_CIRRUS)) { return "cirrus"; } else if (vga_interface_available(VGA_STD)) { return "std"; } return NULL; } static void select_vgahw(const MachineClass *machine_class, const char *p) { const char *opts; int t; if (g_str_equal(p, "help")) { const char *def = get_default_vga_model(machine_class); for (t = 0; t < VGA_TYPE_MAX; t++) { const VGAInterfaceInfo *ti = &vga_interfaces[t]; if (vga_interface_available(t) && ti->opt_name) { printf("%-20s %s%s\n", ti->opt_name, ti->name ?: "", (def && g_str_equal(ti->opt_name, def)) ? " (default)" : ""); } } exit(0); } assert(vga_interface_type == VGA_NONE); for (t = 0; t < VGA_TYPE_MAX; t++) { const VGAInterfaceInfo *ti = &vga_interfaces[t]; if (ti->opt_name && strstart(p, ti->opt_name, &opts)) { if (!vga_interface_available(t)) { error_report("%s not available", ti->name); exit(1); } vga_interface_type = t; break; } } if (t == VGA_TYPE_MAX) { invalid_vga: error_report("unknown vga type: %s", p); exit(1); } while (*opts) { const char *nextopt; if (strstart(opts, ",retrace=", &nextopt)) { opts = nextopt; if (strstart(opts, "dumb", &nextopt)) vga_retrace_method = VGA_RETRACE_DUMB; else if (strstart(opts, "precise", &nextopt)) vga_retrace_method = VGA_RETRACE_PRECISE; else goto invalid_vga; } else goto invalid_vga; opts = nextopt; } } static void parse_display_qapi(const char *str) { DisplayOptions *opts; Visitor *v; v = qobject_input_visitor_new_str(str, "type", &error_fatal); visit_type_DisplayOptions(v, NULL, &opts, &error_fatal); QAPI_CLONE_MEMBERS(DisplayOptions, &dpy, opts); qapi_free_DisplayOptions(opts); visit_free(v); } DisplayOptions *qmp_query_display_options(Error **errp) { return QAPI_CLONE(DisplayOptions, &dpy); } static void parse_display(const char *p) { const char *opts; if (is_help_option(p)) { qemu_display_help(); exit(0); } if (strstart(p, "vnc", &opts)) { /* * vnc isn't a (local) DisplayType but a protocol for remote * display access. */ if (*opts == '=') { vnc_parse(opts + 1); } else { error_report("VNC requires a display argument vnc="); exit(1); } } else { parse_display_qapi(p); } } static inline bool nonempty_str(const char *str) { return str && *str; } static int parse_fw_cfg(void *opaque, QemuOpts *opts, Error **errp) { gchar *buf; size_t size; const char *name, *file, *str, *gen_id; FWCfgState *fw_cfg = (FWCfgState *) opaque; if (fw_cfg == NULL) { error_setg(errp, "fw_cfg device not available"); return -1; } name = qemu_opt_get(opts, "name"); file = qemu_opt_get(opts, "file"); str = qemu_opt_get(opts, "string"); gen_id = qemu_opt_get(opts, "gen_id"); /* we need the name, and exactly one of: file, content string, gen_id */ if (!nonempty_str(name) || nonempty_str(file) + nonempty_str(str) + nonempty_str(gen_id) != 1) { error_setg(errp, "name, plus exactly one of file," " string and gen_id, are needed"); return -1; } if (strlen(name) > FW_CFG_MAX_FILE_PATH - 1) { error_setg(errp, "name too long (max. %d char)", FW_CFG_MAX_FILE_PATH - 1); return -1; } if (nonempty_str(gen_id)) { /* * In this particular case where the content is populated * internally, the "etc/" namespace protection is relaxed, * so do not emit a warning. */ } else if (strncmp(name, "opt/", 4) != 0) { warn_report("externally provided fw_cfg item names " "should be prefixed with \"opt/\""); } if (nonempty_str(str)) { size = strlen(str); /* NUL terminator NOT included in fw_cfg blob */ buf = g_memdup(str, size); } else if (nonempty_str(gen_id)) { if (!fw_cfg_add_from_generator(fw_cfg, name, gen_id, errp)) { return -1; } return 0; } else { GError *err = NULL; if (!g_file_get_contents(file, &buf, &size, &err)) { error_setg(errp, "can't load %s: %s", file, err->message); g_error_free(err); return -1; } } /* For legacy, keep user files in a specific global order. */ fw_cfg_set_order_override(fw_cfg, FW_CFG_ORDER_OVERRIDE_USER); fw_cfg_add_file(fw_cfg, name, buf, size); fw_cfg_reset_order_override(fw_cfg); return 0; } static int device_help_func(void *opaque, QemuOpts *opts, Error **errp) { return qdev_device_help(opts); } static int device_init_func(void *opaque, QemuOpts *opts, Error **errp) { DeviceState *dev; dev = qdev_device_add(opts, errp); if (!dev && *errp) { error_report_err(*errp); return -1; } else if (dev) { object_unref(OBJECT(dev)); } return 0; } static int chardev_init_func(void *opaque, QemuOpts *opts, Error **errp) { Error *local_err = NULL; if (!qemu_chr_new_from_opts(opts, NULL, &local_err)) { if (local_err) { error_propagate(errp, local_err); return -1; } exit(0); } return 0; } #ifdef CONFIG_VIRTFS static int fsdev_init_func(void *opaque, QemuOpts *opts, Error **errp) { return qemu_fsdev_add(opts, errp); } #endif static int mon_init_func(void *opaque, QemuOpts *opts, Error **errp) { return monitor_init_opts(opts, errp); } static void monitor_parse(const char *str, const char *mode, bool pretty) { static int monitor_device_index = 0; QemuOpts *opts; const char *p; char label[32]; if (strstart(str, "chardev:", &p)) { snprintf(label, sizeof(label), "%s", p); } else { snprintf(label, sizeof(label), "compat_monitor%d", monitor_device_index); opts = qemu_chr_parse_compat(label, str, true); if (!opts) { error_report("parse error: %s", str); exit(1); } } opts = qemu_opts_create(qemu_find_opts("mon"), label, 1, &error_fatal); qemu_opt_set(opts, "mode", mode, &error_abort); qemu_opt_set(opts, "chardev", label, &error_abort); if (!strcmp(mode, "control")) { qemu_opt_set_bool(opts, "pretty", pretty, &error_abort); } else { assert(pretty == false); } monitor_device_index++; } struct device_config { enum { DEV_USB, /* -usbdevice */ DEV_SERIAL, /* -serial */ DEV_PARALLEL, /* -parallel */ DEV_DEBUGCON, /* -debugcon */ DEV_GDB, /* -gdb, -s */ DEV_SCLP, /* s390 sclp */ } type; const char *cmdline; Location loc; QTAILQ_ENTRY(device_config) next; }; static QTAILQ_HEAD(, device_config) device_configs = QTAILQ_HEAD_INITIALIZER(device_configs); static void add_device_config(int type, const char *cmdline) { struct device_config *conf; conf = g_malloc0(sizeof(*conf)); conf->type = type; conf->cmdline = cmdline; loc_save(&conf->loc); QTAILQ_INSERT_TAIL(&device_configs, conf, next); } static int foreach_device_config(int type, int (*func)(const char *cmdline)) { struct device_config *conf; int rc; QTAILQ_FOREACH(conf, &device_configs, next) { if (conf->type != type) continue; loc_push_restore(&conf->loc); rc = func(conf->cmdline); loc_pop(&conf->loc); if (rc) { return rc; } } return 0; } static void qemu_disable_default_devices(void) { MachineClass *machine_class = MACHINE_GET_CLASS(current_machine); default_driver_check_json(); qemu_opts_foreach(qemu_find_opts("device"), default_driver_check, NULL, NULL); qemu_opts_foreach(qemu_find_opts("global"), default_driver_check, NULL, NULL); if (!vga_model && !default_vga) { vga_interface_type = VGA_DEVICE; vga_interface_created = true; } if (!has_defaults || machine_class->no_serial) { default_serial = 0; } if (!has_defaults || machine_class->no_parallel) { default_parallel = 0; } if (!has_defaults || machine_class->no_floppy) { default_floppy = 0; } if (!has_defaults || machine_class->no_cdrom) { default_cdrom = 0; } if (!has_defaults || machine_class->no_sdcard) { default_sdcard = 0; } if (!has_defaults) { default_audio = 0; default_monitor = 0; default_net = 0; default_vga = 0; } else { if (default_net && machine_class->default_nic && !module_object_class_by_name(machine_class->default_nic)) { warn_report("Default NIC '%s' is not available in this binary", machine_class->default_nic); default_net = 0; } } } static void qemu_create_default_devices(void) { MachineClass *machine_class = MACHINE_GET_CLASS(current_machine); if (is_daemonized()) { /* According to documentation and historically, -nographic redirects * serial port, parallel port and monitor to stdio, which does not work * with -daemonize. We can redirect these to null instead, but since * -nographic is legacy, let's just error out. * We disallow -nographic only if all other ports are not redirected * explicitly, to not break existing legacy setups which uses * -nographic _and_ redirects all ports explicitly - this is valid * usage, -nographic is just a no-op in this case. */ if (nographic && (default_parallel || default_serial || default_monitor)) { error_report("-nographic cannot be used with -daemonize"); exit(1); } } if (nographic) { if (default_parallel) add_device_config(DEV_PARALLEL, "null"); if (default_serial && default_monitor) { add_device_config(DEV_SERIAL, "mon:stdio"); } else { if (default_serial) add_device_config(DEV_SERIAL, "stdio"); if (default_monitor) monitor_parse("stdio", "readline", false); } } else { if (default_serial) add_device_config(DEV_SERIAL, "vc:80Cx24C"); if (default_parallel) add_device_config(DEV_PARALLEL, "vc:80Cx24C"); if (default_monitor) monitor_parse("vc:80Cx24C", "readline", false); } if (default_net) { QemuOptsList *net = qemu_find_opts("net"); qemu_opts_parse(net, "nic", true, &error_abort); #ifdef CONFIG_SLIRP qemu_opts_parse(net, "user", true, &error_abort); #endif } #if defined(CONFIG_VNC) if (!QTAILQ_EMPTY(&(qemu_find_opts("vnc")->head))) { display_remote++; } #endif if (dpy.type == DISPLAY_TYPE_DEFAULT && !display_remote) { if (!qemu_display_find_default(&dpy)) { dpy.type = DISPLAY_TYPE_NONE; #if defined(CONFIG_VNC) vnc_parse("localhost:0,to=99,id=default"); #endif } } if (dpy.type == DISPLAY_TYPE_DEFAULT) { dpy.type = DISPLAY_TYPE_NONE; } /* If no default VGA is requested, the default is "none". */ if (default_vga) { vga_model = get_default_vga_model(machine_class); } if (vga_model) { select_vgahw(machine_class, vga_model); } } static int serial_parse(const char *devname) { int index = num_serial_hds; char label[32]; if (strcmp(devname, "none") == 0) return 0; snprintf(label, sizeof(label), "serial%d", index); serial_hds = g_renew(Chardev *, serial_hds, index + 1); serial_hds[index] = qemu_chr_new_mux_mon(label, devname, NULL); if (!serial_hds[index]) { error_report("could not connect serial device" " to character backend '%s'", devname); return -1; } num_serial_hds++; return 0; } Chardev *serial_hd(int i) { assert(i >= 0); if (i < num_serial_hds) { return serial_hds[i]; } return NULL; } static int parallel_parse(const char *devname) { static int index = 0; char label[32]; if (strcmp(devname, "none") == 0) return 0; if (index == MAX_PARALLEL_PORTS) { error_report("too many parallel ports"); exit(1); } snprintf(label, sizeof(label), "parallel%d", index); parallel_hds[index] = qemu_chr_new_mux_mon(label, devname, NULL); if (!parallel_hds[index]) { error_report("could not connect parallel device" " to character backend '%s'", devname); return -1; } index++; return 0; } static int debugcon_parse(const char *devname) { QemuOpts *opts; if (!qemu_chr_new_mux_mon("debugcon", devname, NULL)) { error_report("invalid character backend '%s'", devname); exit(1); } opts = qemu_opts_create(qemu_find_opts("device"), "debugcon", 1, NULL); if (!opts) { error_report("already have a debugcon device"); exit(1); } qemu_opt_set(opts, "driver", "isa-debugcon", &error_abort); qemu_opt_set(opts, "chardev", "debugcon", &error_abort); return 0; } static gint machine_class_cmp(gconstpointer a, gconstpointer b) { const MachineClass *mc1 = a, *mc2 = b; int res; if (mc1->family == NULL) { if (mc2->family == NULL) { /* Compare standalone machine types against each other; they sort * in increasing order. */ return strcmp(object_class_get_name(OBJECT_CLASS(mc1)), object_class_get_name(OBJECT_CLASS(mc2))); } /* Standalone machine types sort after families. */ return 1; } if (mc2->family == NULL) { /* Families sort before standalone machine types. */ return -1; } /* Families sort between each other alphabetically increasingly. */ res = strcmp(mc1->family, mc2->family); if (res != 0) { return res; } /* Within the same family, machine types sort in decreasing order. */ return strcmp(object_class_get_name(OBJECT_CLASS(mc2)), object_class_get_name(OBJECT_CLASS(mc1))); } static void machine_help_func(const QDict *qdict) { GSList *machines, *el; const char *type = qdict_get_try_str(qdict, "type"); machines = object_class_get_list(TYPE_MACHINE, false); if (type) { ObjectClass *machine_class = OBJECT_CLASS(find_machine(type, machines)); if (machine_class) { type_print_class_properties(object_class_get_name(machine_class)); return; } } printf("Supported machines are:\n"); machines = g_slist_sort(machines, machine_class_cmp); for (el = machines; el; el = el->next) { MachineClass *mc = el->data; if (mc->alias) { printf("%-20s %s (alias of %s)\n", mc->alias, mc->desc, mc->name); } printf("%-20s %s%s%s\n", mc->name, mc->desc, mc->is_default ? " (default)" : "", mc->deprecation_reason ? " (deprecated)" : ""); } } static void machine_merge_property(const char *propname, QDict *prop, Error **errp) { QDict *opts; opts = qdict_new(); /* Preserve the caller's reference to prop. */ qobject_ref(prop); qdict_put(opts, propname, prop); keyval_merge(machine_opts_dict, opts, errp); qobject_unref(opts); } static void machine_parse_property_opt(QemuOptsList *opts_list, const char *propname, const char *arg) { QDict *prop = NULL; bool help = false; prop = keyval_parse(arg, opts_list->implied_opt_name, &help, &error_fatal); if (help) { qemu_opts_print_help(opts_list, true); exit(0); } machine_merge_property(propname, prop, &error_fatal); qobject_unref(prop); } static const char *pid_file; struct UnlinkPidfileNotifier { Notifier notifier; char *pid_file_realpath; }; static struct UnlinkPidfileNotifier qemu_unlink_pidfile_notifier; static void qemu_unlink_pidfile(Notifier *n, void *data) { struct UnlinkPidfileNotifier *upn; upn = DO_UPCAST(struct UnlinkPidfileNotifier, notifier, n); unlink(upn->pid_file_realpath); } static const QEMUOption *lookup_opt(int argc, char **argv, const char **poptarg, int *poptind) { const QEMUOption *popt; int optind = *poptind; char *r = argv[optind]; const char *optarg; loc_set_cmdline(argv, optind, 1); optind++; /* Treat --foo the same as -foo. */ if (r[1] == '-') r++; popt = qemu_options; for(;;) { if (!popt->name) { error_report("invalid option"); exit(1); } if (!strcmp(popt->name, r + 1)) break; popt++; } if (popt->flags & HAS_ARG) { if (optind >= argc) { error_report("requires an argument"); exit(1); } optarg = argv[optind++]; loc_set_cmdline(argv, optind - 2, 2); } else { optarg = NULL; } *poptarg = optarg; *poptind = optind; return popt; } static MachineClass *select_machine(QDict *qdict, Error **errp) { const char *machine_type = qdict_get_try_str(qdict, "type"); GSList *machines = object_class_get_list(TYPE_MACHINE, false); MachineClass *machine_class; Error *local_err = NULL; if (machine_type) { machine_class = find_machine(machine_type, machines); qdict_del(qdict, "type"); if (!machine_class) { error_setg(&local_err, "unsupported machine type"); } } else { machine_class = find_default_machine(machines); if (!machine_class) { error_setg(&local_err, "No machine specified, and there is no default"); } } g_slist_free(machines); if (local_err) { error_append_hint(&local_err, "Use -machine help to list supported machines\n"); error_propagate(errp, local_err); } return machine_class; } static int object_parse_property_opt(Object *obj, const char *name, const char *value, const char *skip, Error **errp) { if (g_str_equal(name, skip)) { return 0; } if (!object_property_parse(obj, name, value, errp)) { return -1; } return 0; } /* *Non*recursively replace underscores with dashes in QDict keys. */ static void keyval_dashify(QDict *qdict, Error **errp) { const QDictEntry *ent, *next; char *p; for (ent = qdict_first(qdict); ent; ent = next) { g_autofree char *new_key = NULL; next = qdict_next(qdict, ent); if (!strchr(ent->key, '_')) { continue; } new_key = g_strdup(ent->key); for (p = new_key; *p; p++) { if (*p == '_') { *p = '-'; } } if (qdict_haskey(qdict, new_key)) { error_setg(errp, "Conflict between '%s' and '%s'", ent->key, new_key); return; } qobject_ref(ent->value); qdict_put_obj(qdict, new_key, ent->value); qdict_del(qdict, ent->key); } } static void qemu_apply_legacy_machine_options(QDict *qdict) { const char *value; QObject *prop; keyval_dashify(qdict, &error_fatal); /* Legacy options do not correspond to MachineState properties. */ value = qdict_get_try_str(qdict, "accel"); if (value) { accelerators = g_strdup(value); qdict_del(qdict, "accel"); } value = qdict_get_try_str(qdict, "igd-passthru"); if (value) { object_register_sugar_prop(ACCEL_CLASS_NAME("xen"), "igd-passthru", value, false); qdict_del(qdict, "igd-passthru"); } value = qdict_get_try_str(qdict, "kvm-shadow-mem"); if (value) { object_register_sugar_prop(ACCEL_CLASS_NAME("kvm"), "kvm-shadow-mem", value, false); qdict_del(qdict, "kvm-shadow-mem"); } value = qdict_get_try_str(qdict, "kernel-irqchip"); if (value) { object_register_sugar_prop(ACCEL_CLASS_NAME("kvm"), "kernel-irqchip", value, false); object_register_sugar_prop(ACCEL_CLASS_NAME("whpx"), "kernel-irqchip", value, false); qdict_del(qdict, "kernel-irqchip"); } value = qdict_get_try_str(qdict, "memory-backend"); if (value) { if (mem_path) { error_report("'-mem-path' can't be used together with" "'-machine memory-backend'"); exit(EXIT_FAILURE); } /* Resolved later. */ ram_memdev_id = g_strdup(value); qdict_del(qdict, "memory-backend"); } prop = qdict_get(qdict, "memory"); if (prop) { have_custom_ram_size = qobject_type(prop) == QTYPE_QDICT && qdict_haskey(qobject_to(QDict, prop), "size"); } } static void object_option_foreach_add(bool (*type_opt_predicate)(const char *)) { ObjectOption *opt, *next; QTAILQ_FOREACH_SAFE(opt, &object_opts, next, next) { const char *type = ObjectType_str(opt->opts->qom_type); if (type_opt_predicate(type)) { user_creatable_add_qapi(opt->opts, &error_fatal); qapi_free_ObjectOptions(opt->opts); QTAILQ_REMOVE(&object_opts, opt, next); g_free(opt); } } } static void object_option_add_visitor(Visitor *v) { ObjectOption *opt = g_new0(ObjectOption, 1); visit_type_ObjectOptions(v, NULL, &opt->opts, &error_fatal); QTAILQ_INSERT_TAIL(&object_opts, opt, next); } static void object_option_parse(const char *str) { QemuOpts *opts; const char *type; Visitor *v; if (str[0] == '{') { QObject *obj = qobject_from_json(str, &error_fatal); v = qobject_input_visitor_new(obj); qobject_unref(obj); } else { opts = qemu_opts_parse_noisily(qemu_find_opts("object"), str, true); if (!opts) { exit(1); } type = qemu_opt_get(opts, "qom-type"); if (!type) { error_setg(&error_fatal, QERR_MISSING_PARAMETER, "qom-type"); } if (user_creatable_print_help(type, opts)) { exit(0); } v = opts_visitor_new(opts); } object_option_add_visitor(v); visit_free(v); } /* * Very early object creation, before the sandbox options have been activated. */ static bool object_create_pre_sandbox(const char *type) { /* * Objects should in general not get initialized "too early" without * a reason. If you add one, state the reason in a comment! */ /* * Reason: -sandbox on,resourcecontrol=deny disallows setting CPU * affinity of threads. */ if (g_str_equal(type, "thread-context")) { return true; } return false; } /* * Initial object creation happens before all other * QEMU data types are created. The majority of objects * can be created at this point. The rng-egd object * cannot be created here, as it depends on the chardev * already existing. */ static bool object_create_early(const char *type) { /* * Objects should not be made "delayed" without a reason. If you * add one, state the reason in a comment! */ /* Reason: already created. */ if (object_create_pre_sandbox(type)) { return false; } /* Reason: property "chardev" */ if (g_str_equal(type, "rng-egd") || g_str_equal(type, "qtest")) { return false; } #if defined(CONFIG_VHOST_USER) && defined(CONFIG_LINUX) /* Reason: cryptodev-vhost-user property "chardev" */ if (g_str_equal(type, "cryptodev-vhost-user")) { return false; } #endif /* Reason: vhost-user-blk-server property "node-name" */ if (g_str_equal(type, "vhost-user-blk-server")) { return false; } /* * Reason: filter-* property "netdev" etc. */ if (g_str_equal(type, "filter-buffer") || g_str_equal(type, "filter-dump") || g_str_equal(type, "filter-mirror") || g_str_equal(type, "filter-redirector") || g_str_equal(type, "colo-compare") || g_str_equal(type, "filter-rewriter") || g_str_equal(type, "filter-replay")) { return false; } /* * Allocation of large amounts of memory may delay * chardev initialization for too long, and trigger timeouts * on software that waits for a monitor socket to be created * (e.g. libvirt). */ if (g_str_has_prefix(type, "memory-backend-")) { return false; } return true; } static void qemu_apply_machine_options(QDict *qdict) { object_set_properties_from_keyval(OBJECT(current_machine), qdict, false, &error_fatal); if (semihosting_enabled(false) && !semihosting_get_argc()) { /* fall back to the -kernel/-append */ semihosting_arg_fallback(current_machine->kernel_filename, current_machine->kernel_cmdline); } if (current_machine->smp.cpus > 1) { replay_add_blocker("smp"); } } static void qemu_create_early_backends(void) { MachineClass *machine_class = MACHINE_GET_CLASS(current_machine); #if defined(CONFIG_SDL) const bool use_sdl = (dpy.type == DISPLAY_TYPE_SDL); #else const bool use_sdl = false; #endif #if defined(CONFIG_GTK) const bool use_gtk = (dpy.type == DISPLAY_TYPE_GTK); #else const bool use_gtk = false; #endif if (dpy.has_window_close && !use_gtk && !use_sdl) { error_report("window-close is only valid for GTK and SDL, " "ignoring option"); } qemu_display_early_init(&dpy); qemu_console_early_init(); if (dpy.has_gl && dpy.gl != DISPLAYGL_MODE_OFF && display_opengl == 0) { #if defined(CONFIG_OPENGL) error_report("OpenGL is not supported by the display"); #else error_report("OpenGL support is disabled"); #endif exit(1); } object_option_foreach_add(object_create_early); /* spice needs the timers to be initialized by this point */ /* spice must initialize before audio as it changes the default audiodev */ /* spice must initialize before chardevs (for spicevmc and spiceport) */ qemu_spice.init(); qemu_opts_foreach(qemu_find_opts("chardev"), chardev_init_func, NULL, &error_fatal); #ifdef CONFIG_VIRTFS qemu_opts_foreach(qemu_find_opts("fsdev"), fsdev_init_func, NULL, &error_fatal); #endif /* * Note: we need to create audio and block backends before * setting machine properties, so they can be referred to. */ configure_blockdev(&bdo_queue, machine_class, snapshot); audio_init_audiodevs(); if (default_audio) { audio_create_default_audiodevs(); } } /* * The remainder of object creation happens after the * creation of chardev, fsdev, net clients and device data types. */ static bool object_create_late(const char *type) { return !object_create_early(type) && !object_create_pre_sandbox(type); } static void qemu_create_late_backends(void) { if (qtest_chrdev) { qtest_server_init(qtest_chrdev, qtest_log, &error_fatal); } net_init_clients(); object_option_foreach_add(object_create_late); if (tpm_init() < 0) { exit(1); } qemu_opts_foreach(qemu_find_opts("mon"), mon_init_func, NULL, &error_fatal); if (foreach_device_config(DEV_SERIAL, serial_parse) < 0) exit(1); if (foreach_device_config(DEV_PARALLEL, parallel_parse) < 0) exit(1); if (foreach_device_config(DEV_DEBUGCON, debugcon_parse) < 0) exit(1); /* now chardevs have been created we may have semihosting to connect */ qemu_semihosting_chardev_init(); } static void qemu_resolve_machine_memdev(void) { if (ram_memdev_id) { Object *backend; ram_addr_t backend_size; backend = object_resolve_path_type(ram_memdev_id, TYPE_MEMORY_BACKEND, NULL); if (!backend) { error_report("Memory backend '%s' not found", ram_memdev_id); exit(EXIT_FAILURE); } if (!have_custom_ram_size) { backend_size = object_property_get_uint(backend, "size", &error_abort); current_machine->ram_size = backend_size; } object_property_set_link(OBJECT(current_machine), "memory-backend", backend, &error_fatal); } } static void parse_memory_options(void) { QemuOpts *opts = qemu_find_opts_singleton("memory"); QDict *dict, *prop; const char *mem_str; Location loc; loc_push_none(&loc); qemu_opts_loc_restore(opts); prop = qdict_new(); if (qemu_opt_get_size(opts, "size", 0) != 0) { /* Fix up legacy suffix-less format */ mem_str = qemu_opt_get(opts, "size"); if (g_ascii_isdigit(mem_str[strlen(mem_str) - 1])) { g_autofree char *mib_str = g_strdup_printf("%sM", mem_str); qdict_put_str(prop, "size", mib_str); } else { qdict_put_str(prop, "size", mem_str); } } if (qemu_opt_get(opts, "maxmem")) { qdict_put_str(prop, "max-size", qemu_opt_get(opts, "maxmem")); } if (qemu_opt_get(opts, "slots")) { qdict_put_str(prop, "slots", qemu_opt_get(opts, "slots")); } dict = qdict_new(); qdict_put(dict, "memory", prop); keyval_merge(machine_opts_dict, dict, &error_fatal); qobject_unref(dict); loc_pop(&loc); } static void qemu_create_machine(QDict *qdict) { MachineClass *machine_class = select_machine(qdict, &error_fatal); object_set_machine_compat_props(machine_class->compat_props); current_machine = MACHINE(object_new_with_class(OBJECT_CLASS(machine_class))); object_property_add_child(object_get_root(), "machine", OBJECT(current_machine)); object_property_add_child(container_get(OBJECT(current_machine), "/unattached"), "sysbus", OBJECT(sysbus_get_default())); if (machine_class->minimum_page_bits) { if (!set_preferred_target_page_bits(machine_class->minimum_page_bits)) { /* This would be a board error: specifying a minimum smaller than * a target's compile-time fixed setting. */ g_assert_not_reached(); } } cpu_exec_init_all(); page_size_init(); if (machine_class->hw_version) { qemu_set_hw_version(machine_class->hw_version); } /* * Get the default machine options from the machine if it is not already * specified either by the configuration file or by the command line. */ if (machine_class->default_machine_opts) { QDict *default_opts = keyval_parse(machine_class->default_machine_opts, NULL, NULL, &error_abort); qemu_apply_legacy_machine_options(default_opts); object_set_properties_from_keyval(OBJECT(current_machine), default_opts, false, &error_abort); qobject_unref(default_opts); } } static int global_init_func(void *opaque, QemuOpts *opts, Error **errp) { GlobalProperty *g; g = g_malloc0(sizeof(*g)); g->driver = qemu_opt_get(opts, "driver"); g->property = qemu_opt_get(opts, "property"); g->value = qemu_opt_get(opts, "value"); qdev_prop_register_global(g); return 0; } /* * Return whether configuration group @group is stored in QemuOpts, or * recorded as one or more QDicts by qemu_record_config_group. */ static bool is_qemuopts_group(const char *group) { if (g_str_equal(group, "object") || g_str_equal(group, "audiodev") || g_str_equal(group, "machine") || g_str_equal(group, "smp-opts") || g_str_equal(group, "boot-opts")) { return false; } return true; } static void qemu_record_config_group(const char *group, QDict *dict, bool from_json, Error **errp) { if (g_str_equal(group, "object")) { Visitor *v = qobject_input_visitor_new_keyval(QOBJECT(dict)); object_option_add_visitor(v); visit_free(v); } else if (g_str_equal(group, "audiodev")) { Audiodev *dev = NULL; Visitor *v = qobject_input_visitor_new_keyval(QOBJECT(dict)); if (visit_type_Audiodev(v, NULL, &dev, errp)) { audio_define(dev); } visit_free(v); } else if (g_str_equal(group, "machine")) { /* * Cannot merge string-valued and type-safe dictionaries, so JSON * is not accepted yet for -M. */ assert(!from_json); keyval_merge(machine_opts_dict, dict, errp); } else if (g_str_equal(group, "smp-opts")) { machine_merge_property("smp", dict, &error_fatal); } else if (g_str_equal(group, "boot-opts")) { machine_merge_property("boot", dict, &error_fatal); } else { abort(); } } /* * Parse non-QemuOpts config file groups, pass the rest to * qemu_config_do_parse. */ static void qemu_parse_config_group(const char *group, QDict *qdict, void *opaque, Error **errp) { QObject *crumpled; if (is_qemuopts_group(group)) { qemu_config_do_parse(group, qdict, opaque, errp); return; } crumpled = qdict_crumple(qdict, errp); if (!crumpled) { return; } switch (qobject_type(crumpled)) { case QTYPE_QDICT: qemu_record_config_group(group, qobject_to(QDict, crumpled), false, errp); break; case QTYPE_QLIST: error_setg(errp, "Lists cannot be at top level of a configuration section"); break; default: g_assert_not_reached(); } qobject_unref(crumpled); } static void qemu_read_default_config_file(Error **errp) { ERRP_GUARD(); int ret; g_autofree char *file = get_relocated_path(CONFIG_QEMU_CONFDIR "/qemu.conf"); ret = qemu_read_config_file(file, qemu_parse_config_group, errp); if (ret < 0) { if (ret == -ENOENT) { error_free(*errp); *errp = NULL; } } } static void qemu_set_option(const char *str, Error **errp) { 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_setg(errp, "can't parse: \"%s\"", str); return; } if (!is_qemuopts_group(group)) { error_setg(errp, "-set is not supported with %s", group); } else { list = qemu_find_opts_err(group, errp); if (list) { opts = qemu_opts_find(list, id); if (!opts) { error_setg(errp, "there is no %s \"%s\" defined", group, id); return; } qemu_opt_set(opts, arg, str + offset + 1, errp); } } } static void user_register_global_props(void) { qemu_opts_foreach(qemu_find_opts("global"), global_init_func, NULL, NULL); } static int do_configure_icount(void *opaque, QemuOpts *opts, Error **errp) { icount_configure(opts, errp); return 0; } static int accelerator_set_property(void *opaque, const char *name, const char *value, Error **errp) { return object_parse_property_opt(opaque, name, value, "accel", errp); } static int do_configure_accelerator(void *opaque, QemuOpts *opts, Error **errp) { bool *p_init_failed = opaque; const char *acc = qemu_opt_get(opts, "accel"); AccelClass *ac = accel_find(acc); AccelState *accel; int ret; bool qtest_with_kvm; if (!acc) { error_setg(errp, QERR_MISSING_PARAMETER, "accel"); goto bad; } qtest_with_kvm = g_str_equal(acc, "kvm") && qtest_chrdev != NULL; if (!ac) { if (!qtest_with_kvm) { error_report("invalid accelerator %s", acc); } goto bad; } accel = ACCEL(object_new_with_class(OBJECT_CLASS(ac))); object_apply_compat_props(OBJECT(accel)); qemu_opt_foreach(opts, accelerator_set_property, accel, &error_fatal); /* * If legacy -singlestep option is set, honour it for TCG and * silently ignore for any other accelerator (which is how this * option has always behaved). */ if (opt_one_insn_per_tb) { /* * This will always succeed for TCG, and we want to ignore * the error from trying to set a nonexistent property * on any other accelerator. */ object_property_set_bool(OBJECT(accel), "one-insn-per-tb", true, NULL); } ret = accel_init_machine(accel, current_machine); if (ret < 0) { if (!qtest_with_kvm || ret != -ENOENT) { error_report("failed to initialize %s: %s", acc, strerror(-ret)); } goto bad; } return 1; bad: *p_init_failed = true; return 0; } static void configure_accelerators(const char *progname) { bool init_failed = false; qemu_opts_foreach(qemu_find_opts("icount"), do_configure_icount, NULL, &error_fatal); if (QTAILQ_EMPTY(&qemu_accel_opts.head)) { char **accel_list, **tmp; if (accelerators == NULL) { /* Select the default accelerator */ bool have_tcg = accel_find("tcg"); bool have_kvm = accel_find("kvm"); if (have_tcg && have_kvm) { if (g_str_has_suffix(progname, "kvm")) { /* If the program name ends with "kvm", we prefer KVM */ accelerators = "kvm:tcg"; } else { accelerators = "tcg:kvm"; } } else if (have_kvm) { accelerators = "kvm"; } else if (have_tcg) { accelerators = "tcg"; } else { error_report("No accelerator selected and" " no default accelerator available"); exit(1); } } accel_list = g_strsplit(accelerators, ":", 0); for (tmp = accel_list; *tmp; tmp++) { /* * Filter invalid accelerators here, to prevent obscenities * such as "-machine accel=tcg,,thread=single". */ if (accel_find(*tmp)) { qemu_opts_parse_noisily(qemu_find_opts("accel"), *tmp, true); } else { init_failed = true; error_report("invalid accelerator %s", *tmp); } } g_strfreev(accel_list); } else { if (accelerators != NULL) { error_report("The -accel and \"-machine accel=\" options are incompatible"); exit(1); } } if (!qemu_opts_foreach(qemu_find_opts("accel"), do_configure_accelerator, &init_failed, &error_fatal)) { if (!init_failed) { error_report("no accelerator found"); } exit(1); } if (init_failed && !qtest_chrdev) { error_report("falling back to %s", current_accel_name()); } if (icount_enabled() && !tcg_enabled()) { error_report("-icount is not allowed with hardware virtualization"); exit(1); } } static void qemu_validate_options(const QDict *machine_opts) { const char *kernel_filename = qdict_get_try_str(machine_opts, "kernel"); const char *initrd_filename = qdict_get_try_str(machine_opts, "initrd"); const char *kernel_cmdline = qdict_get_try_str(machine_opts, "append"); if (kernel_filename == NULL) { if (kernel_cmdline != NULL) { error_report("-append only allowed with -kernel option"); exit(1); } if (initrd_filename != NULL) { error_report("-initrd only allowed with -kernel option"); exit(1); } } if (loadvm && preconfig_requested) { error_report("'preconfig' and 'loadvm' options are " "mutually exclusive"); exit(EXIT_FAILURE); } if (incoming && preconfig_requested && strcmp(incoming, "defer") != 0) { error_report("'preconfig' supports '-incoming defer' only"); exit(EXIT_FAILURE); } #ifdef CONFIG_CURSES if (is_daemonized() && dpy.type == DISPLAY_TYPE_CURSES) { error_report("curses display cannot be used with -daemonize"); exit(1); } #endif } static void qemu_process_sugar_options(void) { if (mem_prealloc) { QObject *smp = qdict_get(machine_opts_dict, "smp"); if (smp && qobject_type(smp) == QTYPE_QDICT) { QObject *cpus = qdict_get(qobject_to(QDict, smp), "cpus"); if (cpus && qobject_type(cpus) == QTYPE_QSTRING) { const char *val = qstring_get_str(qobject_to(QString, cpus)); object_register_sugar_prop("memory-backend", "prealloc-threads", val, false); } } object_register_sugar_prop("memory-backend", "prealloc", "on", false); } } /* -action processing */ /* * Process all the -action parameters parsed from cmdline. */ static int process_runstate_actions(void *opaque, QemuOpts *opts, Error **errp) { Error *local_err = NULL; QDict *qdict = qemu_opts_to_qdict(opts, NULL); QObject *ret = NULL; qmp_marshal_set_action(qdict, &ret, &local_err); qobject_unref(ret); qobject_unref(qdict); if (local_err) { error_propagate(errp, local_err); return 1; } return 0; } static void qemu_process_early_options(void) { qemu_opts_foreach(qemu_find_opts("name"), parse_name, NULL, &error_fatal); object_option_foreach_add(object_create_pre_sandbox); #ifdef CONFIG_SECCOMP QemuOptsList *olist = qemu_find_opts_err("sandbox", NULL); if (olist) { qemu_opts_foreach(olist, parse_sandbox, NULL, &error_fatal); } #endif if (qemu_opts_foreach(qemu_find_opts("action"), process_runstate_actions, NULL, &error_fatal)) { exit(1); } #ifndef _WIN32 qemu_opts_foreach(qemu_find_opts("add-fd"), parse_add_fd, NULL, &error_fatal); qemu_opts_foreach(qemu_find_opts("add-fd"), cleanup_add_fd, NULL, &error_fatal); #endif /* Open the logfile at this point and set the log mask if necessary. */ { int mask = 0; if (log_mask) { mask = qemu_str_to_log_mask(log_mask); if (!mask) { qemu_print_log_usage(stdout); exit(1); } } qemu_set_log_filename_flags(log_file, mask, &error_fatal); } qemu_add_default_firmwarepath(); } static void qemu_process_help_options(void) { /* * Check for -cpu help and -device help before we call select_machine(), * which will return an error if the architecture has no default machine * type and the user did not specify one, so that the user doesn't need * to say '-cpu help -machine something'. */ if (cpu_option && is_help_option(cpu_option)) { list_cpus(); exit(0); } if (qemu_opts_foreach(qemu_find_opts("device"), device_help_func, NULL, NULL)) { exit(0); } /* -L help lists the data directories and exits. */ if (list_data_dirs) { qemu_list_data_dirs(); exit(0); } } static void qemu_maybe_daemonize(const char *pid_file) { Error *err = NULL; os_daemonize(); rcu_disable_atfork(); if (pid_file) { char *pid_file_realpath = NULL; if (!qemu_write_pidfile(pid_file, &err)) { error_reportf_err(err, "cannot create PID file: "); exit(1); } pid_file_realpath = g_malloc0(PATH_MAX); if (!realpath(pid_file, pid_file_realpath)) { if (errno != ENOENT) { warn_report("not removing PID file on exit: cannot resolve PID " "file path: %s: %s", pid_file, strerror(errno)); } return; } qemu_unlink_pidfile_notifier = (struct UnlinkPidfileNotifier) { .notifier = { .notify = qemu_unlink_pidfile, }, .pid_file_realpath = pid_file_realpath, }; qemu_add_exit_notifier(&qemu_unlink_pidfile_notifier.notifier); } } static void qemu_init_displays(void) { DisplayState *ds; /* init local displays */ ds = init_displaystate(); qemu_display_init(ds, &dpy); /* must be after terminal init, SDL library changes signal handlers */ os_setup_signal_handling(); /* init remote displays */ #ifdef CONFIG_VNC qemu_opts_foreach(qemu_find_opts("vnc"), vnc_init_func, NULL, &error_fatal); #endif if (using_spice) { qemu_spice.display_init(); } } static void qemu_init_board(void) { /* process plugin before CPUs are created, but once -smp has been parsed */ qemu_plugin_load_list(&plugin_list, &error_fatal); /* From here on we enter MACHINE_PHASE_INITIALIZED. */ machine_run_board_init(current_machine, mem_path, &error_fatal); drive_check_orphaned(); realtime_init(); } static void qemu_create_cli_devices(void) { DeviceOption *opt; soundhw_init(); qemu_opts_foreach(qemu_find_opts("fw_cfg"), parse_fw_cfg, fw_cfg_find(), &error_fatal); /* init USB devices */ if (machine_usb(current_machine)) { if (foreach_device_config(DEV_USB, usb_parse) < 0) exit(1); } /* init generic devices */ rom_set_order_override(FW_CFG_ORDER_OVERRIDE_DEVICE); qemu_opts_foreach(qemu_find_opts("device"), device_init_func, NULL, &error_fatal); QTAILQ_FOREACH(opt, &device_opts, next) { DeviceState *dev; loc_push_restore(&opt->loc); /* * TODO Eventually we should call qmp_device_add() here to make sure it * behaves the same, but QMP still has to accept incorrectly typed * options until libvirt is fixed and we want to be strict on the CLI * from the start, so call qdev_device_add_from_qdict() directly for * now. */ dev = qdev_device_add_from_qdict(opt->opts, true, &error_fatal); object_unref(OBJECT(dev)); loc_pop(&opt->loc); } rom_reset_order_override(); } static void qemu_machine_creation_done(void) { MachineState *machine = MACHINE(qdev_get_machine()); /* Did we create any drives that we failed to create a device for? */ drive_check_orphaned(); /* Don't warn about the default network setup that you get if * no command line -net or -netdev options are specified. There * are two cases that we would otherwise complain about: * (1) board doesn't support a NIC but the implicit "-net nic" * requested one * (2) CONFIG_SLIRP not set, in which case the implicit "-net nic" * sets up a nic that isn't connected to anything. */ if (!default_net && (!qtest_enabled() || has_defaults)) { net_check_clients(); } qdev_prop_check_globals(); qdev_machine_creation_done(); if (machine->cgs) { /* * Verify that Confidential Guest Support has actually been initialized */ assert(machine->cgs->ready); } if (foreach_device_config(DEV_GDB, gdbserver_start) < 0) { exit(1); } if (!vga_interface_created && !default_vga && vga_interface_type != VGA_NONE) { warn_report("A -vga option was passed but this machine " "type does not use that option; " "No VGA device has been created"); } } void qmp_x_exit_preconfig(Error **errp) { if (phase_check(PHASE_MACHINE_INITIALIZED)) { error_setg(errp, "The command is permitted only before machine initialization"); return; } qemu_init_board(); qemu_create_cli_devices(); qemu_machine_creation_done(); if (loadvm) { load_snapshot(loadvm, NULL, false, NULL, &error_fatal); } if (replay_mode != REPLAY_MODE_NONE) { replay_vmstate_init(); } if (incoming) { Error *local_err = NULL; if (strcmp(incoming, "defer") != 0) { qmp_migrate_incoming(incoming, &local_err); if (local_err) { error_reportf_err(local_err, "-incoming %s: ", incoming); exit(1); } } } else if (autostart) { qmp_cont(NULL); } } void qemu_init(int argc, char **argv) { QemuOpts *opts; QemuOpts *icount_opts = NULL, *accel_opts = NULL; QemuOptsList *olist; int optind; const char *optarg; MachineClass *machine_class; bool userconfig = true; FILE *vmstate_dump_file = NULL; qemu_add_opts(&qemu_drive_opts); qemu_add_drive_opts(&qemu_legacy_drive_opts); qemu_add_drive_opts(&qemu_common_drive_opts); qemu_add_drive_opts(&qemu_drive_opts); qemu_add_drive_opts(&bdrv_runtime_opts); qemu_add_opts(&qemu_chardev_opts); qemu_add_opts(&qemu_device_opts); qemu_add_opts(&qemu_netdev_opts); qemu_add_opts(&qemu_nic_opts); qemu_add_opts(&qemu_net_opts); qemu_add_opts(&qemu_rtc_opts); qemu_add_opts(&qemu_global_opts); qemu_add_opts(&qemu_mon_opts); qemu_add_opts(&qemu_trace_opts); qemu_plugin_add_opts(); qemu_add_opts(&qemu_option_rom_opts); qemu_add_opts(&qemu_accel_opts); qemu_add_opts(&qemu_mem_opts); qemu_add_opts(&qemu_smp_opts); qemu_add_opts(&qemu_boot_opts); qemu_add_opts(&qemu_add_fd_opts); qemu_add_opts(&qemu_object_opts); qemu_add_opts(&qemu_tpmdev_opts); qemu_add_opts(&qemu_overcommit_opts); qemu_add_opts(&qemu_msg_opts); qemu_add_opts(&qemu_name_opts); qemu_add_opts(&qemu_numa_opts); qemu_add_opts(&qemu_icount_opts); qemu_add_opts(&qemu_semihosting_config_opts); qemu_add_opts(&qemu_fw_cfg_opts); qemu_add_opts(&qemu_action_opts); qemu_add_run_with_opts(); module_call_init(MODULE_INIT_OPTS); error_init(argv[0]); qemu_init_exec_dir(argv[0]); qemu_init_arch_modules(); qemu_init_subsystems(); /* first pass of option parsing */ optind = 1; while (optind < argc) { if (argv[optind][0] != '-') { /* disk image */ optind++; } else { const QEMUOption *popt; popt = lookup_opt(argc, argv, &optarg, &optind); switch (popt->index) { case QEMU_OPTION_nouserconfig: userconfig = false; break; } } } machine_opts_dict = qdict_new(); if (userconfig) { qemu_read_default_config_file(&error_fatal); } /* second pass of option parsing */ optind = 1; for(;;) { if (optind >= argc) break; if (argv[optind][0] != '-') { loc_set_cmdline(argv, optind, 1); drive_add(IF_DEFAULT, 0, argv[optind++], HD_OPTS); } else { const QEMUOption *popt; popt = lookup_opt(argc, argv, &optarg, &optind); if (!(popt->arch_mask & arch_type)) { error_report("Option not supported for this target"); exit(1); } switch(popt->index) { case QEMU_OPTION_cpu: /* hw initialization will check this */ cpu_option = optarg; break; case QEMU_OPTION_hda: case QEMU_OPTION_hdb: case QEMU_OPTION_hdc: case QEMU_OPTION_hdd: drive_add(IF_DEFAULT, popt->index - QEMU_OPTION_hda, optarg, HD_OPTS); break; case QEMU_OPTION_blockdev: { Visitor *v; BlockdevOptionsQueueEntry *bdo; v = qobject_input_visitor_new_str(optarg, "driver", &error_fatal); bdo = g_new(BlockdevOptionsQueueEntry, 1); visit_type_BlockdevOptions(v, NULL, &bdo->bdo, &error_fatal); visit_free(v); loc_save(&bdo->loc); QSIMPLEQ_INSERT_TAIL(&bdo_queue, bdo, entry); break; } case QEMU_OPTION_drive: opts = qemu_opts_parse_noisily(qemu_find_opts("drive"), optarg, false); if (opts == NULL) { exit(1); } break; case QEMU_OPTION_set: qemu_set_option(optarg, &error_fatal); break; case QEMU_OPTION_global: if (qemu_global_option(optarg) != 0) exit(1); break; case QEMU_OPTION_mtdblock: drive_add(IF_MTD, -1, optarg, MTD_OPTS); break; case QEMU_OPTION_sd: drive_add(IF_SD, -1, optarg, SD_OPTS); break; case QEMU_OPTION_pflash: drive_add(IF_PFLASH, -1, optarg, PFLASH_OPTS); break; case QEMU_OPTION_snapshot: snapshot = 1; replay_add_blocker("-snapshot"); break; case QEMU_OPTION_numa: opts = qemu_opts_parse_noisily(qemu_find_opts("numa"), optarg, true); if (!opts) { exit(1); } break; case QEMU_OPTION_display: parse_display(optarg); break; case QEMU_OPTION_nographic: qdict_put_str(machine_opts_dict, "graphics", "off"); nographic = true; dpy.type = DISPLAY_TYPE_NONE; break; case QEMU_OPTION_portrait: graphic_rotate = 90; break; case QEMU_OPTION_rotate: graphic_rotate = strtol(optarg, (char **) &optarg, 10); if (graphic_rotate != 0 && graphic_rotate != 90 && graphic_rotate != 180 && graphic_rotate != 270) { error_report("only 90, 180, 270 deg rotation is available"); exit(1); } break; case QEMU_OPTION_kernel: qdict_put_str(machine_opts_dict, "kernel", optarg); break; case QEMU_OPTION_initrd: qdict_put_str(machine_opts_dict, "initrd", optarg); break; case QEMU_OPTION_append: qdict_put_str(machine_opts_dict, "append", optarg); break; case QEMU_OPTION_dtb: qdict_put_str(machine_opts_dict, "dtb", optarg); break; case QEMU_OPTION_cdrom: drive_add(IF_DEFAULT, 2, optarg, CDROM_OPTS); break; case QEMU_OPTION_boot: machine_parse_property_opt(qemu_find_opts("boot-opts"), "boot", optarg); break; case QEMU_OPTION_fda: case QEMU_OPTION_fdb: drive_add(IF_FLOPPY, popt->index - QEMU_OPTION_fda, optarg, FD_OPTS); break; case QEMU_OPTION_no_fd_bootchk: fd_bootchk = 0; break; case QEMU_OPTION_netdev: default_net = 0; if (netdev_is_modern(optarg)) { netdev_parse_modern(optarg); } else { net_client_parse(qemu_find_opts("netdev"), optarg); } break; case QEMU_OPTION_nic: default_net = 0; net_client_parse(qemu_find_opts("nic"), optarg); break; case QEMU_OPTION_net: default_net = 0; net_client_parse(qemu_find_opts("net"), optarg); break; #ifdef CONFIG_LIBISCSI case QEMU_OPTION_iscsi: opts = qemu_opts_parse_noisily(qemu_find_opts("iscsi"), optarg, false); if (!opts) { exit(1); } break; #endif case QEMU_OPTION_audiodev: default_audio = 0; audio_parse_option(optarg); break; case QEMU_OPTION_audio: { bool help; char *model = NULL; Audiodev *dev = NULL; Visitor *v; QDict *dict = keyval_parse(optarg, "driver", &help, &error_fatal); default_audio = 0; if (help || (qdict_haskey(dict, "driver") && is_help_option(qdict_get_str(dict, "driver")))) { audio_help(); exit(EXIT_SUCCESS); } if (!qdict_haskey(dict, "id")) { qdict_put_str(dict, "id", "audiodev0"); } if (qdict_haskey(dict, "model")) { model = g_strdup(qdict_get_str(dict, "model")); qdict_del(dict, "model"); if (is_help_option(model)) { show_valid_soundhw(); exit(0); } } v = qobject_input_visitor_new_keyval(QOBJECT(dict)); qobject_unref(dict); visit_type_Audiodev(v, NULL, &dev, &error_fatal); visit_free(v); if (model) { audio_define(dev); select_soundhw(model, dev->id); g_free(model); } else { audio_define_default(dev, &error_fatal); } break; } case QEMU_OPTION_h: help(0); break; case QEMU_OPTION_version: version(); exit(0); break; case QEMU_OPTION_m: opts = qemu_opts_parse_noisily(qemu_find_opts("memory"), optarg, true); if (opts == NULL) { exit(1); } break; #ifdef CONFIG_TPM case QEMU_OPTION_tpmdev: if (tpm_config_parse(qemu_find_opts("tpmdev"), optarg) < 0) { exit(1); } break; #endif case QEMU_OPTION_mempath: mem_path = optarg; break; case QEMU_OPTION_mem_prealloc: mem_prealloc = 1; break; case QEMU_OPTION_d: log_mask = optarg; break; case QEMU_OPTION_D: log_file = optarg; break; case QEMU_OPTION_DFILTER: qemu_set_dfilter_ranges(optarg, &error_fatal); break; #if defined(CONFIG_TCG) && defined(CONFIG_LINUX) case QEMU_OPTION_perfmap: perf_enable_perfmap(); break; case QEMU_OPTION_jitdump: perf_enable_jitdump(); break; #endif case QEMU_OPTION_seed: qemu_guest_random_seed_main(optarg, &error_fatal); break; case QEMU_OPTION_s: add_device_config(DEV_GDB, "tcp::" DEFAULT_GDBSTUB_PORT); break; case QEMU_OPTION_gdb: add_device_config(DEV_GDB, optarg); break; case QEMU_OPTION_L: if (is_help_option(optarg)) { list_data_dirs = true; } else { qemu_add_data_dir(g_strdup(optarg)); } break; case QEMU_OPTION_bios: qdict_put_str(machine_opts_dict, "firmware", optarg); break; case QEMU_OPTION_singlestep: opt_one_insn_per_tb = true; break; case QEMU_OPTION_S: autostart = 0; break; case QEMU_OPTION_k: keyboard_layout = optarg; break; case QEMU_OPTION_vga: vga_model = optarg; default_vga = 0; break; case QEMU_OPTION_g: { const char *p; int w, h, depth; p = optarg; w = strtol(p, (char **)&p, 10); if (w <= 0) { graphic_error: error_report("invalid resolution or depth"); exit(1); } if (*p != 'x') goto graphic_error; p++; h = strtol(p, (char **)&p, 10); if (h <= 0) goto graphic_error; if (*p == 'x') { p++; depth = strtol(p, (char **)&p, 10); if (depth != 1 && depth != 2 && depth != 4 && depth != 8 && depth != 15 && depth != 16 && depth != 24 && depth != 32) goto graphic_error; } else if (*p == '\0') { depth = graphic_depth; } else { goto graphic_error; } graphic_width = w; graphic_height = h; graphic_depth = depth; } break; case QEMU_OPTION_echr: { char *r; term_escape_char = strtol(optarg, &r, 0); if (r == optarg) printf("Bad argument to echr\n"); break; } case QEMU_OPTION_monitor: default_monitor = 0; if (strncmp(optarg, "none", 4)) { monitor_parse(optarg, "readline", false); } break; case QEMU_OPTION_qmp: monitor_parse(optarg, "control", false); default_monitor = 0; break; case QEMU_OPTION_qmp_pretty: monitor_parse(optarg, "control", true); default_monitor = 0; break; case QEMU_OPTION_mon: opts = qemu_opts_parse_noisily(qemu_find_opts("mon"), optarg, true); if (!opts) { exit(1); } default_monitor = 0; break; case QEMU_OPTION_chardev: opts = qemu_opts_parse_noisily(qemu_find_opts("chardev"), optarg, true); if (!opts) { exit(1); } break; case QEMU_OPTION_fsdev: olist = qemu_find_opts("fsdev"); if (!olist) { error_report("fsdev support is disabled"); exit(1); } opts = qemu_opts_parse_noisily(olist, optarg, true); if (!opts) { exit(1); } break; case QEMU_OPTION_virtfs: { QemuOpts *fsdev; QemuOpts *device; const char *writeout, *sock_fd, *socket, *path, *security_model, *multidevs; olist = qemu_find_opts("virtfs"); if (!olist) { error_report("virtfs support is disabled"); exit(1); } opts = qemu_opts_parse_noisily(olist, optarg, true); if (!opts) { exit(1); } if (qemu_opt_get(opts, "fsdriver") == NULL || qemu_opt_get(opts, "mount_tag") == NULL) { error_report("Usage: -virtfs fsdriver,mount_tag=tag"); exit(1); } fsdev = qemu_opts_create(qemu_find_opts("fsdev"), qemu_opts_id(opts) ?: qemu_opt_get(opts, "mount_tag"), 1, NULL); if (!fsdev) { error_report("duplicate or invalid fsdev id: %s", qemu_opt_get(opts, "mount_tag")); exit(1); } writeout = qemu_opt_get(opts, "writeout"); if (writeout) { #ifdef CONFIG_SYNC_FILE_RANGE qemu_opt_set(fsdev, "writeout", writeout, &error_abort); #else error_report("writeout=immediate not supported " "on this platform"); exit(1); #endif } qemu_opt_set(fsdev, "fsdriver", qemu_opt_get(opts, "fsdriver"), &error_abort); path = qemu_opt_get(opts, "path"); if (path) { qemu_opt_set(fsdev, "path", path, &error_abort); } security_model = qemu_opt_get(opts, "security_model"); if (security_model) { qemu_opt_set(fsdev, "security_model", security_model, &error_abort); } socket = qemu_opt_get(opts, "socket"); if (socket) { qemu_opt_set(fsdev, "socket", socket, &error_abort); } sock_fd = qemu_opt_get(opts, "sock_fd"); if (sock_fd) { qemu_opt_set(fsdev, "sock_fd", sock_fd, &error_abort); } qemu_opt_set_bool(fsdev, "readonly", qemu_opt_get_bool(opts, "readonly", 0), &error_abort); multidevs = qemu_opt_get(opts, "multidevs"); if (multidevs) { qemu_opt_set(fsdev, "multidevs", multidevs, &error_abort); } device = qemu_opts_create(qemu_find_opts("device"), NULL, 0, &error_abort); qemu_opt_set(device, "driver", "virtio-9p-pci", &error_abort); qemu_opt_set(device, "fsdev", qemu_opts_id(fsdev), &error_abort); qemu_opt_set(device, "mount_tag", qemu_opt_get(opts, "mount_tag"), &error_abort); break; } case QEMU_OPTION_serial: add_device_config(DEV_SERIAL, optarg); default_serial = 0; if (strncmp(optarg, "mon:", 4) == 0) { default_monitor = 0; } break; case QEMU_OPTION_action: olist = qemu_find_opts("action"); if (!qemu_opts_parse_noisily(olist, optarg, false)) { exit(1); } break; case QEMU_OPTION_watchdog_action: { opts = qemu_opts_create(qemu_find_opts("action"), NULL, 0, &error_abort); qemu_opt_set(opts, "watchdog", optarg, &error_abort); break; } case QEMU_OPTION_parallel: add_device_config(DEV_PARALLEL, optarg); default_parallel = 0; if (strncmp(optarg, "mon:", 4) == 0) { default_monitor = 0; } break; case QEMU_OPTION_debugcon: add_device_config(DEV_DEBUGCON, optarg); break; case QEMU_OPTION_loadvm: loadvm = optarg; break; case QEMU_OPTION_full_screen: dpy.has_full_screen = true; dpy.full_screen = true; break; case QEMU_OPTION_pidfile: pid_file = optarg; break; case QEMU_OPTION_win2k_hack: win2k_install_hack = 1; break; case QEMU_OPTION_acpitable: opts = qemu_opts_parse_noisily(qemu_find_opts("acpi"), optarg, true); if (!opts) { exit(1); } acpi_table_add(opts, &error_fatal); break; case QEMU_OPTION_smbios: opts = qemu_opts_parse_noisily(qemu_find_opts("smbios"), optarg, false); if (!opts) { exit(1); } smbios_entry_add(opts, &error_fatal); break; case QEMU_OPTION_fwcfg: opts = qemu_opts_parse_noisily(qemu_find_opts("fw_cfg"), optarg, true); if (opts == NULL) { exit(1); } break; case QEMU_OPTION_preconfig: preconfig_requested = true; break; case QEMU_OPTION_enable_kvm: qdict_put_str(machine_opts_dict, "accel", "kvm"); break; case QEMU_OPTION_M: case QEMU_OPTION_machine: { bool help; keyval_parse_into(machine_opts_dict, optarg, "type", &help, &error_fatal); if (help) { machine_help_func(machine_opts_dict); exit(EXIT_SUCCESS); } break; } case QEMU_OPTION_accel: accel_opts = qemu_opts_parse_noisily(qemu_find_opts("accel"), optarg, true); optarg = qemu_opt_get(accel_opts, "accel"); if (!optarg || is_help_option(optarg)) { printf("Accelerators supported in QEMU binary:\n"); GSList *el, *accel_list = object_class_get_list(TYPE_ACCEL, false); for (el = accel_list; el; el = el->next) { gchar *typename = g_strdup(object_class_get_name( OBJECT_CLASS(el->data))); /* omit qtest which is used for tests only */ if (g_strcmp0(typename, ACCEL_CLASS_NAME("qtest")) && g_str_has_suffix(typename, ACCEL_CLASS_SUFFIX)) { gchar **optname = g_strsplit(typename, ACCEL_CLASS_SUFFIX, 0); printf("%s\n", optname[0]); g_strfreev(optname); } g_free(typename); } g_slist_free(accel_list); exit(0); } break; case QEMU_OPTION_usb: qdict_put_str(machine_opts_dict, "usb", "on"); break; case QEMU_OPTION_usbdevice: qdict_put_str(machine_opts_dict, "usb", "on"); add_device_config(DEV_USB, optarg); break; case QEMU_OPTION_device: if (optarg[0] == '{') { QObject *obj = qobject_from_json(optarg, &error_fatal); DeviceOption *opt = g_new0(DeviceOption, 1); opt->opts = qobject_to(QDict, obj); loc_save(&opt->loc); assert(opt->opts != NULL); QTAILQ_INSERT_TAIL(&device_opts, opt, next); } else { if (!qemu_opts_parse_noisily(qemu_find_opts("device"), optarg, true)) { exit(1); } } break; case QEMU_OPTION_smp: machine_parse_property_opt(qemu_find_opts("smp-opts"), "smp", optarg); break; case QEMU_OPTION_vnc: vnc_parse(optarg); break; case QEMU_OPTION_no_acpi: warn_report("-no-acpi is deprecated, use '-machine acpi=off' instead"); qdict_put_str(machine_opts_dict, "acpi", "off"); break; case QEMU_OPTION_no_hpet: warn_report("-no-hpet is deprecated, use '-machine hpet=off' instead"); qdict_put_str(machine_opts_dict, "hpet", "off"); break; case QEMU_OPTION_no_reboot: olist = qemu_find_opts("action"); qemu_opts_parse_noisily(olist, "reboot=shutdown", false); break; case QEMU_OPTION_no_shutdown: olist = qemu_find_opts("action"); qemu_opts_parse_noisily(olist, "shutdown=pause", false); break; case QEMU_OPTION_uuid: if (qemu_uuid_parse(optarg, &qemu_uuid) < 0) { error_report("failed to parse UUID string: wrong format"); exit(1); } qemu_uuid_set = true; break; case QEMU_OPTION_option_rom: if (nb_option_roms >= MAX_OPTION_ROMS) { error_report("too many option ROMs"); exit(1); } opts = qemu_opts_parse_noisily(qemu_find_opts("option-rom"), optarg, true); if (!opts) { exit(1); } option_rom[nb_option_roms].name = qemu_opt_get(opts, "romfile"); option_rom[nb_option_roms].bootindex = qemu_opt_get_number(opts, "bootindex", -1); if (!option_rom[nb_option_roms].name) { error_report("Option ROM file is not specified"); exit(1); } nb_option_roms++; break; case QEMU_OPTION_semihosting: qemu_semihosting_enable(); break; case QEMU_OPTION_semihosting_config: if (qemu_semihosting_config_options(optarg) != 0) { exit(1); } break; case QEMU_OPTION_name: opts = qemu_opts_parse_noisily(qemu_find_opts("name"), optarg, true); if (!opts) { exit(1); } /* Capture guest name if -msg guest-name is used later */ error_guest_name = qemu_opt_get(opts, "guest"); break; case QEMU_OPTION_prom_env: if (nb_prom_envs >= MAX_PROM_ENVS) { error_report("too many prom variables"); exit(1); } prom_envs[nb_prom_envs] = optarg; nb_prom_envs++; break; case QEMU_OPTION_old_param: old_param = 1; break; case QEMU_OPTION_rtc: opts = qemu_opts_parse_noisily(qemu_find_opts("rtc"), optarg, false); if (!opts) { exit(1); } break; case QEMU_OPTION_icount: icount_opts = qemu_opts_parse_noisily(qemu_find_opts("icount"), optarg, true); if (!icount_opts) { exit(1); } break; case QEMU_OPTION_incoming: if (!incoming) { runstate_set(RUN_STATE_INMIGRATE); } incoming = optarg; break; case QEMU_OPTION_only_migratable: only_migratable = 1; break; case QEMU_OPTION_nodefaults: has_defaults = 0; break; case QEMU_OPTION_xen_domid: if (!(accel_find("xen")) && !(accel_find("kvm"))) { error_report("Option not supported for this target"); exit(1); } xen_domid = atoi(optarg); break; case QEMU_OPTION_xen_attach: if (!(accel_find("xen"))) { error_report("Option not supported for this target"); exit(1); } xen_mode = XEN_ATTACH; break; case QEMU_OPTION_xen_domid_restrict: if (!(accel_find("xen"))) { error_report("Option not supported for this target"); exit(1); } xen_domid_restrict = true; break; case QEMU_OPTION_trace: trace_opt_parse(optarg); break; case QEMU_OPTION_plugin: qemu_plugin_opt_parse(optarg, &plugin_list); break; case QEMU_OPTION_readconfig: qemu_read_config_file(optarg, qemu_parse_config_group, &error_fatal); break; #ifdef CONFIG_SPICE case QEMU_OPTION_spice: olist = qemu_find_opts_err("spice", NULL); if (!olist) { error_report("spice support is disabled"); exit(1); } opts = qemu_opts_parse_noisily(olist, optarg, false); if (!opts) { exit(1); } display_remote++; break; #endif case QEMU_OPTION_qtest: qtest_chrdev = optarg; break; case QEMU_OPTION_qtest_log: qtest_log = optarg; break; case QEMU_OPTION_sandbox: olist = qemu_find_opts("sandbox"); if (!olist) { #ifndef CONFIG_SECCOMP error_report("-sandbox support is not enabled " "in this QEMU binary"); #endif exit(1); } opts = qemu_opts_parse_noisily(olist, optarg, true); if (!opts) { exit(1); } break; case QEMU_OPTION_add_fd: #ifndef _WIN32 opts = qemu_opts_parse_noisily(qemu_find_opts("add-fd"), optarg, false); if (!opts) { exit(1); } #else error_report("File descriptor passing is disabled on this " "platform"); exit(1); #endif break; case QEMU_OPTION_object: object_option_parse(optarg); break; case QEMU_OPTION_overcommit: opts = qemu_opts_parse_noisily(qemu_find_opts("overcommit"), optarg, false); if (!opts) { exit(1); } enable_mlock = qemu_opt_get_bool(opts, "mem-lock", false); enable_cpu_pm = qemu_opt_get_bool(opts, "cpu-pm", false); break; case QEMU_OPTION_compat: { CompatPolicy *opts_policy; Visitor *v; v = qobject_input_visitor_new_str(optarg, NULL, &error_fatal); visit_type_CompatPolicy(v, NULL, &opts_policy, &error_fatal); QAPI_CLONE_MEMBERS(CompatPolicy, &compat_policy, opts_policy); qapi_free_CompatPolicy(opts_policy); visit_free(v); break; } case QEMU_OPTION_msg: opts = qemu_opts_parse_noisily(qemu_find_opts("msg"), optarg, false); if (!opts) { exit(1); } configure_msg(opts); break; case QEMU_OPTION_dump_vmstate: if (vmstate_dump_file) { error_report("only one '-dump-vmstate' " "option may be given"); exit(1); } vmstate_dump_file = fopen(optarg, "w"); if (vmstate_dump_file == NULL) { error_report("open %s: %s", optarg, strerror(errno)); exit(1); } break; case QEMU_OPTION_enable_sync_profile: qsp_enable(); break; case QEMU_OPTION_nouserconfig: /* Nothing to be parsed here. Especially, do not error out below. */ break; #if defined(CONFIG_POSIX) case QEMU_OPTION_runas: if (!os_set_runas(optarg)) { error_report("User \"%s\" doesn't exist" " (and is not :)", optarg); exit(1); } break; case QEMU_OPTION_chroot: warn_report("option is deprecated," " use '-run-with chroot=...' instead"); os_set_chroot(optarg); break; case QEMU_OPTION_daemonize: os_set_daemonize(true); break; #if defined(CONFIG_LINUX) /* deprecated */ case QEMU_OPTION_asyncteardown: init_async_teardown(); break; #endif case QEMU_OPTION_run_with: { const char *str; opts = qemu_opts_parse_noisily(qemu_find_opts("run-with"), optarg, false); if (!opts) { exit(1); } #if defined(CONFIG_LINUX) if (qemu_opt_get_bool(opts, "async-teardown", false)) { init_async_teardown(); } #endif str = qemu_opt_get(opts, "chroot"); if (str) { os_set_chroot(str); } break; } #endif /* CONFIG_POSIX */ default: error_report("Option not supported in this build"); exit(1); } } } /* * Clear error location left behind by the loop. * Best done right after the loop. Do not insert code here! */ loc_set_none(); qemu_validate_options(machine_opts_dict); qemu_process_sugar_options(); /* * These options affect everything else and should be processed * before daemonizing. */ qemu_process_early_options(); qemu_process_help_options(); qemu_maybe_daemonize(pid_file); /* * The trace backend must be initialized after daemonizing. * trace_init_backends() will call st_init(), which will create the * trace thread in the parent, and also register st_flush_trace_buffer() * in atexit(). This function will force the parent to wait for the * writeout thread to finish, which will not occur, and the parent * process will be left in the host. */ if (!trace_init_backends()) { exit(1); } trace_init_file(); qemu_init_main_loop(&error_fatal); cpu_timers_init(); user_register_global_props(); replay_configure(icount_opts); configure_rtc(qemu_find_opts_singleton("rtc")); /* Transfer QemuOpts options into machine options */ parse_memory_options(); qemu_create_machine(machine_opts_dict); suspend_mux_open(); qemu_disable_default_devices(); qemu_create_default_devices(); qemu_create_early_backends(); qemu_apply_legacy_machine_options(machine_opts_dict); qemu_apply_machine_options(machine_opts_dict); qobject_unref(machine_opts_dict); phase_advance(PHASE_MACHINE_CREATED); /* * Note: uses machine properties such as kernel-irqchip, must run * after qemu_apply_machine_options. */ configure_accelerators(argv[0]); phase_advance(PHASE_ACCEL_CREATED); /* * Beware, QOM objects created before this point miss global and * compat properties. * * Global properties get set up by qdev_prop_register_global(), * called from user_register_global_props(), and certain option * desugaring. Also in CPU feature desugaring (buried in * parse_cpu_option()), which happens below this point, but may * only target the CPU type, which can only be created after * parse_cpu_option() returned the type. * * Machine compat properties: object_set_machine_compat_props(). * Accelerator compat props: object_set_accelerator_compat_props(), * called from do_configure_accelerator(). */ machine_class = MACHINE_GET_CLASS(current_machine); if (!qtest_enabled() && machine_class->deprecation_reason) { warn_report("Machine type '%s' is deprecated: %s", machine_class->name, machine_class->deprecation_reason); } /* * Create backends before creating migration objects, so that it can * check against compatibilities on the backend memories (e.g. postcopy * over memory-backend-file objects). */ qemu_create_late_backends(); /* * Note: creates a QOM object, must run only after global and * compat properties have been set up. */ migration_object_init(); /* parse features once if machine provides default cpu_type */ current_machine->cpu_type = machine_class->default_cpu_type; if (cpu_option) { current_machine->cpu_type = parse_cpu_option(cpu_option); } /* NB: for machine none cpu_type could STILL be NULL here! */ qemu_resolve_machine_memdev(); parse_numa_opts(current_machine); if (vmstate_dump_file) { /* dump and exit */ module_load_qom_all(); dump_vmstate_json_to_file(vmstate_dump_file); exit(0); } if (!preconfig_requested) { qmp_x_exit_preconfig(&error_fatal); } qemu_init_displays(); accel_setup_post(current_machine); os_setup_post(); resume_mux_open(); }