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Diffstat (limited to 'system/vl.c')
| -rw-r--r-- | system/vl.c | 3740 |
1 files changed, 3740 insertions, 0 deletions
diff --git a/system/vl.c b/system/vl.c new file mode 100644 index 0000000000..ba83040675 --- /dev/null +++ b/system/vl.c @@ -0,0 +1,3740 @@ +/* + * 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 }, +}; + +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 = "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=<display>"); + 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 <uid>:<gid>)", + 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(); +} |