diff options
Diffstat (limited to 'softmmu')
| -rw-r--r-- | softmmu/Makefile.objs | 2 | ||||
| -rw-r--r-- | softmmu/vl.c | 4447 |
2 files changed, 4449 insertions, 0 deletions
diff --git a/softmmu/Makefile.objs b/softmmu/Makefile.objs new file mode 100644 index 0000000000..d80a5ffe5a --- /dev/null +++ b/softmmu/Makefile.objs @@ -0,0 +1,2 @@ +obj-y += vl.o +vl.o-cflags := $(GPROF_CFLAGS) $(SDL_CFLAGS) diff --git a/softmmu/vl.c b/softmmu/vl.c new file mode 100644 index 0000000000..794f2e5733 --- /dev/null +++ b/softmmu/vl.c @@ -0,0 +1,4447 @@ +/* + * 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-common.h" +#include "qemu/units.h" +#include "hw/qdev-properties.h" +#include "qapi/error.h" +#include "qemu-version.h" +#include "qemu/cutils.h" +#include "qemu/help_option.h" +#include "qemu/uuid.h" +#include "sysemu/reset.h" +#include "sysemu/runstate.h" +#include "sysemu/seccomp.h" +#include "sysemu/tcg.h" + +#ifdef CONFIG_SDL +#if defined(__APPLE__) || defined(main) +#include <SDL.h> +int qemu_main(int argc, char **argv, char **envp); +int main(int argc, char **argv) +{ + return qemu_main(argc, argv, NULL); +} +#undef main +#define main qemu_main +#endif +#endif /* CONFIG_SDL */ + +#ifdef CONFIG_COCOA +#undef main +#define main qemu_main +#endif /* CONFIG_COCOA */ + + +#include "qemu/error-report.h" +#include "qemu/sockets.h" +#include "sysemu/accel.h" +#include "hw/usb.h" +#include "hw/isa/isa.h" +#include "hw/scsi/scsi.h" +#include "hw/display/vga.h" +#include "sysemu/watchdog.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 "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 "migration/misc.h" +#include "migration/snapshot.h" +#include "migration/global_state.h" +#include "sysemu/tpm.h" +#include "sysemu/dma.h" +#include "hw/audio/soundhw.h" +#include "audio/audio.h" +#include "sysemu/cpus.h" +#include "migration/colo.h" +#include "migration/postcopy-ram.h" +#include "sysemu/kvm.h" +#include "sysemu/hax.h" +#include "qapi/qobject-input-visitor.h" +#include "qemu/option.h" +#include "qemu/config-file.h" +#include "qemu-options.h" +#include "qemu/main-loop.h" +#ifdef CONFIG_VIRTFS +#include "fsdev/qemu-fsdev.h" +#endif +#include "sysemu/qtest.h" + +#include "disas/disas.h" + +#include "trace-root.h" +#include "trace/control.h" +#include "qemu/plugin.h" +#include "qemu/queue.h" +#include "sysemu/arch_init.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 "hw/semihosting/semihost.h" +#include "crypto/init.h" +#include "sysemu/replay.h" +#include "qapi/qapi-events-run-state.h" +#include "qapi/qapi-visit-block-core.h" +#include "qapi/qapi-visit-ui.h" +#include "qapi/qapi-commands-block-core.h" +#include "qapi/qapi-commands-run-state.h" +#include "qapi/qapi-commands-ui.h" +#include "qapi/qmp/qerror.h" +#include "sysemu/iothread.h" +#include "qemu/guest-random.h" + +#define MAX_VIRTIO_CONSOLES 1 + +static const char *data_dir[16]; +static int data_dir_idx; +const char *bios_name = NULL; +enum vga_retrace_method vga_retrace_method = VGA_RETRACE_DUMB; +int display_opengl; +const char* keyboard_layout = NULL; +ram_addr_t ram_size; +const char *mem_path = NULL; +int mem_prealloc = 0; /* force preallocation of physical target memory */ +bool enable_mlock = false; +bool enable_cpu_pm = false; +int nb_nics; +NICInfo nd_table[MAX_NICS]; +int autostart; +static enum { + RTC_BASE_UTC, + RTC_BASE_LOCALTIME, + RTC_BASE_DATETIME, +} rtc_base_type = RTC_BASE_UTC; +static time_t rtc_ref_start_datetime; +static int rtc_realtime_clock_offset; /* used only with QEMU_CLOCK_REALTIME */ +static int rtc_host_datetime_offset = -1; /* valid & used only with + RTC_BASE_DATETIME */ +QEMUClockType rtc_clock; +int vga_interface_type = VGA_NONE; +static DisplayOptions dpy; +static int num_serial_hds; +static Chardev **serial_hds; +Chardev *parallel_hds[MAX_PARALLEL_PORTS]; +int win2k_install_hack = 0; +int singlestep = 0; +int acpi_enabled = 1; +int no_hpet = 0; +int fd_bootchk = 1; +static int no_reboot; +int no_shutdown = 0; +int graphic_rotate = 0; +const char *watchdog; +QEMUOptionRom option_rom[MAX_OPTION_ROMS]; +int nb_option_roms; +int old_param = 0; +const char *qemu_name; +int alt_grab = 0; +int ctrl_grab = 0; +unsigned int nb_prom_envs = 0; +const char *prom_envs[MAX_PROM_ENVS]; +int boot_menu; +bool boot_strict; +uint8_t *boot_splash_filedata; +int only_migratable; /* turn it off unless user states otherwise */ +bool wakeup_suspend_enabled; + +int icount_align_option; + +/* The bytes in qemu_uuid are in the order specified by RFC4122, _not_ in the + * little-endian "wire format" described in the SMBIOS 2.6 specification. + */ +QemuUUID qemu_uuid; +bool qemu_uuid_set; + +static NotifierList exit_notifiers = + NOTIFIER_LIST_INITIALIZER(exit_notifiers); + +static NotifierList machine_init_done_notifiers = + NOTIFIER_LIST_INITIALIZER(machine_init_done_notifiers); + +bool xen_allowed; +uint32_t xen_domid; +enum xen_mode xen_mode = XEN_EMULATE; +bool xen_domid_restrict; + +static int has_defaults = 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 = "ide-drive", .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 }, +}; + +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_machine_opts = { + .name = "machine", + .implied_opt_name = "type", + .merge_lists = true, + .head = QTAILQ_HEAD_INITIALIZER(qemu_machine_opts.head), + .desc = { + /* + * no elements => accept any + * sanity checking will happen later + * when setting machine properties + */ + { } + }, +}; + +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_realtime_opts = { + .name = "realtime", + .head = QTAILQ_HEAD_INITIALIZER(qemu_realtime_opts.head), + .desc = { + { + .name = "mlock", + .type = QEMU_OPT_BOOL, + }, + { /* 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, + }, + { /* 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", + }, + { /* end of list */ } + }, +}; + +/** + * Get machine options + * + * Returns: machine options (never null). + */ +QemuOpts *qemu_get_machine_opts(void) +{ + return qemu_find_opts_singleton("machine"); +} + +const char *qemu_get_vm_name(void) +{ + return qemu_name; +} + +static void res_free(void) +{ + g_free(boot_splash_filedata); + boot_splash_filedata = NULL; +} + +static int default_driver_check(void *opaque, QemuOpts *opts, Error **errp) +{ + const char *driver = qemu_opt_get(opts, "driver"); + int i; + + if (!driver) + return 0; + for (i = 0; i < ARRAY_SIZE(default_list); i++) { + if (strcmp(default_list[i].driver, driver) != 0) + continue; + *(default_list[i].flag) = 0; + } + return 0; +} + +/***********************************************************/ +/* QEMU state */ + +static RunState current_run_state = RUN_STATE_PRECONFIG; + +/* We use RUN_STATE__MAX but any invalid value will do */ +static RunState vmstop_requested = RUN_STATE__MAX; +static QemuMutex vmstop_lock; + +typedef struct { + RunState from; + RunState to; +} RunStateTransition; + +static const RunStateTransition runstate_transitions_def[] = { + /* from -> to */ + { RUN_STATE_PRECONFIG, RUN_STATE_PRELAUNCH }, + /* Early switch to inmigrate state to allow -incoming CLI option work + * as it used to. TODO: delay actual switching to inmigrate state to + * the point after machine is built and remove this hack. + */ + { RUN_STATE_PRECONFIG, RUN_STATE_INMIGRATE }, + + { RUN_STATE_DEBUG, RUN_STATE_RUNNING }, + { RUN_STATE_DEBUG, RUN_STATE_FINISH_MIGRATE }, + { RUN_STATE_DEBUG, RUN_STATE_PRELAUNCH }, + + { RUN_STATE_INMIGRATE, RUN_STATE_INTERNAL_ERROR }, + { RUN_STATE_INMIGRATE, RUN_STATE_IO_ERROR }, + { RUN_STATE_INMIGRATE, RUN_STATE_PAUSED }, + { RUN_STATE_INMIGRATE, RUN_STATE_RUNNING }, + { RUN_STATE_INMIGRATE, RUN_STATE_SHUTDOWN }, + { RUN_STATE_INMIGRATE, RUN_STATE_SUSPENDED }, + { RUN_STATE_INMIGRATE, RUN_STATE_WATCHDOG }, + { RUN_STATE_INMIGRATE, RUN_STATE_GUEST_PANICKED }, + { RUN_STATE_INMIGRATE, RUN_STATE_FINISH_MIGRATE }, + { RUN_STATE_INMIGRATE, RUN_STATE_PRELAUNCH }, + { RUN_STATE_INMIGRATE, RUN_STATE_POSTMIGRATE }, + { RUN_STATE_INMIGRATE, RUN_STATE_COLO }, + + { RUN_STATE_INTERNAL_ERROR, RUN_STATE_PAUSED }, + { RUN_STATE_INTERNAL_ERROR, RUN_STATE_FINISH_MIGRATE }, + { RUN_STATE_INTERNAL_ERROR, RUN_STATE_PRELAUNCH }, + + { RUN_STATE_IO_ERROR, RUN_STATE_RUNNING }, + { RUN_STATE_IO_ERROR, RUN_STATE_FINISH_MIGRATE }, + { RUN_STATE_IO_ERROR, RUN_STATE_PRELAUNCH }, + + { RUN_STATE_PAUSED, RUN_STATE_RUNNING }, + { RUN_STATE_PAUSED, RUN_STATE_FINISH_MIGRATE }, + { RUN_STATE_PAUSED, RUN_STATE_POSTMIGRATE }, + { RUN_STATE_PAUSED, RUN_STATE_PRELAUNCH }, + { RUN_STATE_PAUSED, RUN_STATE_COLO}, + + { RUN_STATE_POSTMIGRATE, RUN_STATE_RUNNING }, + { RUN_STATE_POSTMIGRATE, RUN_STATE_FINISH_MIGRATE }, + { RUN_STATE_POSTMIGRATE, RUN_STATE_PRELAUNCH }, + + { RUN_STATE_PRELAUNCH, RUN_STATE_RUNNING }, + { RUN_STATE_PRELAUNCH, RUN_STATE_FINISH_MIGRATE }, + { RUN_STATE_PRELAUNCH, RUN_STATE_INMIGRATE }, + + { RUN_STATE_FINISH_MIGRATE, RUN_STATE_RUNNING }, + { RUN_STATE_FINISH_MIGRATE, RUN_STATE_PAUSED }, + { RUN_STATE_FINISH_MIGRATE, RUN_STATE_POSTMIGRATE }, + { RUN_STATE_FINISH_MIGRATE, RUN_STATE_PRELAUNCH }, + { RUN_STATE_FINISH_MIGRATE, RUN_STATE_COLO}, + + { RUN_STATE_RESTORE_VM, RUN_STATE_RUNNING }, + { RUN_STATE_RESTORE_VM, RUN_STATE_PRELAUNCH }, + + { RUN_STATE_COLO, RUN_STATE_RUNNING }, + + { RUN_STATE_RUNNING, RUN_STATE_DEBUG }, + { RUN_STATE_RUNNING, RUN_STATE_INTERNAL_ERROR }, + { RUN_STATE_RUNNING, RUN_STATE_IO_ERROR }, + { RUN_STATE_RUNNING, RUN_STATE_PAUSED }, + { RUN_STATE_RUNNING, RUN_STATE_FINISH_MIGRATE }, + { RUN_STATE_RUNNING, RUN_STATE_RESTORE_VM }, + { RUN_STATE_RUNNING, RUN_STATE_SAVE_VM }, + { RUN_STATE_RUNNING, RUN_STATE_SHUTDOWN }, + { RUN_STATE_RUNNING, RUN_STATE_WATCHDOG }, + { RUN_STATE_RUNNING, RUN_STATE_GUEST_PANICKED }, + { RUN_STATE_RUNNING, RUN_STATE_COLO}, + + { RUN_STATE_SAVE_VM, RUN_STATE_RUNNING }, + + { RUN_STATE_SHUTDOWN, RUN_STATE_PAUSED }, + { RUN_STATE_SHUTDOWN, RUN_STATE_FINISH_MIGRATE }, + { RUN_STATE_SHUTDOWN, RUN_STATE_PRELAUNCH }, + + { RUN_STATE_DEBUG, RUN_STATE_SUSPENDED }, + { RUN_STATE_RUNNING, RUN_STATE_SUSPENDED }, + { RUN_STATE_SUSPENDED, RUN_STATE_RUNNING }, + { RUN_STATE_SUSPENDED, RUN_STATE_FINISH_MIGRATE }, + { RUN_STATE_SUSPENDED, RUN_STATE_PRELAUNCH }, + { RUN_STATE_SUSPENDED, RUN_STATE_COLO}, + + { RUN_STATE_WATCHDOG, RUN_STATE_RUNNING }, + { RUN_STATE_WATCHDOG, RUN_STATE_FINISH_MIGRATE }, + { RUN_STATE_WATCHDOG, RUN_STATE_PRELAUNCH }, + { RUN_STATE_WATCHDOG, RUN_STATE_COLO}, + + { RUN_STATE_GUEST_PANICKED, RUN_STATE_RUNNING }, + { RUN_STATE_GUEST_PANICKED, RUN_STATE_FINISH_MIGRATE }, + { RUN_STATE_GUEST_PANICKED, RUN_STATE_PRELAUNCH }, + + { RUN_STATE__MAX, RUN_STATE__MAX }, +}; + +static bool runstate_valid_transitions[RUN_STATE__MAX][RUN_STATE__MAX]; + +bool runstate_check(RunState state) +{ + return current_run_state == state; +} + +bool runstate_store(char *str, size_t size) +{ + const char *state = RunState_str(current_run_state); + size_t len = strlen(state) + 1; + + if (len > size) { + return false; + } + memcpy(str, state, len); + return true; +} + +static void runstate_init(void) +{ + const RunStateTransition *p; + + memset(&runstate_valid_transitions, 0, sizeof(runstate_valid_transitions)); + for (p = &runstate_transitions_def[0]; p->from != RUN_STATE__MAX; p++) { + runstate_valid_transitions[p->from][p->to] = true; + } + + qemu_mutex_init(&vmstop_lock); +} + +/* This function will abort() on invalid state transitions */ +void runstate_set(RunState new_state) +{ + assert(new_state < RUN_STATE__MAX); + + trace_runstate_set(current_run_state, RunState_str(current_run_state), + new_state, RunState_str(new_state)); + + if (current_run_state == new_state) { + return; + } + + if (!runstate_valid_transitions[current_run_state][new_state]) { + error_report("invalid runstate transition: '%s' -> '%s'", + RunState_str(current_run_state), + RunState_str(new_state)); + abort(); + } + + current_run_state = new_state; +} + +int runstate_is_running(void) +{ + return runstate_check(RUN_STATE_RUNNING); +} + +bool runstate_needs_reset(void) +{ + return runstate_check(RUN_STATE_INTERNAL_ERROR) || + runstate_check(RUN_STATE_SHUTDOWN); +} + +StatusInfo *qmp_query_status(Error **errp) +{ + StatusInfo *info = g_malloc0(sizeof(*info)); + + info->running = runstate_is_running(); + info->singlestep = singlestep; + info->status = current_run_state; + + return info; +} + +bool qemu_vmstop_requested(RunState *r) +{ + qemu_mutex_lock(&vmstop_lock); + *r = vmstop_requested; + vmstop_requested = RUN_STATE__MAX; + qemu_mutex_unlock(&vmstop_lock); + return *r < RUN_STATE__MAX; +} + +void qemu_system_vmstop_request_prepare(void) +{ + qemu_mutex_lock(&vmstop_lock); +} + +void qemu_system_vmstop_request(RunState state) +{ + vmstop_requested = state; + qemu_mutex_unlock(&vmstop_lock); + qemu_notify_event(); +} + +/***********************************************************/ +/* RTC reference time/date access */ +static time_t qemu_ref_timedate(QEMUClockType clock) +{ + time_t value = qemu_clock_get_ms(clock) / 1000; + switch (clock) { + case QEMU_CLOCK_REALTIME: + value -= rtc_realtime_clock_offset; + /* fall through */ + case QEMU_CLOCK_VIRTUAL: + value += rtc_ref_start_datetime; + break; + case QEMU_CLOCK_HOST: + if (rtc_base_type == RTC_BASE_DATETIME) { + value -= rtc_host_datetime_offset; + } + break; + default: + assert(0); + } + return value; +} + +void qemu_get_timedate(struct tm *tm, int offset) +{ + time_t ti = qemu_ref_timedate(rtc_clock); + + ti += offset; + + switch (rtc_base_type) { + case RTC_BASE_DATETIME: + case RTC_BASE_UTC: + gmtime_r(&ti, tm); + break; + case RTC_BASE_LOCALTIME: + localtime_r(&ti, tm); + break; + } +} + +int qemu_timedate_diff(struct tm *tm) +{ + time_t seconds; + + switch (rtc_base_type) { + case RTC_BASE_DATETIME: + case RTC_BASE_UTC: + seconds = mktimegm(tm); + break; + case RTC_BASE_LOCALTIME: + { + struct tm tmp = *tm; + tmp.tm_isdst = -1; /* use timezone to figure it out */ + seconds = mktime(&tmp); + break; + } + default: + abort(); + } + + return seconds - qemu_ref_timedate(QEMU_CLOCK_HOST); +} + +static void configure_rtc_base_datetime(const char *startdate) +{ + time_t rtc_start_datetime; + struct tm tm; + + if (sscanf(startdate, "%d-%d-%dT%d:%d:%d", &tm.tm_year, &tm.tm_mon, + &tm.tm_mday, &tm.tm_hour, &tm.tm_min, &tm.tm_sec) == 6) { + /* OK */ + } else if (sscanf(startdate, "%d-%d-%d", + &tm.tm_year, &tm.tm_mon, &tm.tm_mday) == 3) { + tm.tm_hour = 0; + tm.tm_min = 0; + tm.tm_sec = 0; + } else { + goto date_fail; + } + tm.tm_year -= 1900; + tm.tm_mon--; + rtc_start_datetime = mktimegm(&tm); + if (rtc_start_datetime == -1) { + date_fail: + error_report("invalid datetime format"); + error_printf("valid formats: " + "'2006-06-17T16:01:21' or '2006-06-17'\n"); + exit(1); + } + rtc_host_datetime_offset = rtc_ref_start_datetime - rtc_start_datetime; + rtc_ref_start_datetime = rtc_start_datetime; +} + +static void configure_rtc(QemuOpts *opts) +{ + const char *value; + + /* Set defaults */ + rtc_clock = QEMU_CLOCK_HOST; + rtc_ref_start_datetime = qemu_clock_get_ms(QEMU_CLOCK_HOST) / 1000; + rtc_realtime_clock_offset = qemu_clock_get_ms(QEMU_CLOCK_REALTIME) / 1000; + + value = qemu_opt_get(opts, "base"); + if (value) { + if (!strcmp(value, "utc")) { + rtc_base_type = RTC_BASE_UTC; + } else if (!strcmp(value, "localtime")) { + Error *blocker = NULL; + rtc_base_type = RTC_BASE_LOCALTIME; + error_setg(&blocker, QERR_REPLAY_NOT_SUPPORTED, + "-rtc base=localtime"); + replay_add_blocker(blocker); + } else { + rtc_base_type = RTC_BASE_DATETIME; + configure_rtc_base_datetime(value); + } + } + value = qemu_opt_get(opts, "clock"); + if (value) { + if (!strcmp(value, "host")) { + rtc_clock = QEMU_CLOCK_HOST; + } else if (!strcmp(value, "rt")) { + rtc_clock = QEMU_CLOCK_REALTIME; + } else if (!strcmp(value, "vm")) { + rtc_clock = QEMU_CLOCK_VIRTUAL; + } else { + error_report("invalid option value '%s'", value); + exit(1); + } + } + value = qemu_opt_get(opts, "driftfix"); + if (value) { + if (!strcmp(value, "slew")) { + object_register_sugar_prop("mc146818rtc", + "lost_tick_policy", + "slew"); + } else if (!strcmp(value, "none")) { + /* discard is default */ + } else { + error_report("invalid option value '%s'", value); + exit(1); + } + } +} + +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, 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; + +} + +typedef struct BlockdevOptionsQueueEntry { + BlockdevOptions *bdo; + Location loc; + QSIMPLEQ_ENTRY(BlockdevOptionsQueueEntry) entry; +} BlockdevOptionsQueueEntry; + +typedef QSIMPLEQ_HEAD(, BlockdevOptionsQueueEntry) BlockdevOptionsQueue; + +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 = "cores", + .type = QEMU_OPT_NUMBER, + }, { + .name = "threads", + .type = QEMU_OPT_NUMBER, + }, { + .name = "maxcpus", + .type = QEMU_OPT_NUMBER, + }, + { /*End of list */ } + }, +}; + +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) +{ + error_with_timestamp = qemu_opt_get_bool(opts, "timestamp", 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 */ + +MachineState *current_machine; + +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; + + for (el = machines; el; el = el->next) { + MachineClass *mc = el->data; + + if (mc->is_default) { + return mc; + } + } + + return NULL; +} + +static int machine_help_func(QemuOpts *opts, MachineState *machine) +{ + ObjectProperty *prop; + ObjectPropertyIterator iter; + + if (!qemu_opt_has_help_opt(opts)) { + return 0; + } + + object_property_iter_init(&iter, OBJECT(machine)); + while ((prop = object_property_iter_next(&iter))) { + if (!prop->set) { + continue; + } + + printf("%s.%s=%s", MACHINE_GET_CLASS(machine)->name, + prop->name, prop->type); + if (prop->description) { + printf(" (%s)\n", prop->description); + } else { + printf("\n"); + } + } + + return 1; +} + +struct VMChangeStateEntry { + VMChangeStateHandler *cb; + void *opaque; + QTAILQ_ENTRY(VMChangeStateEntry) entries; + int priority; +}; + +static QTAILQ_HEAD(, VMChangeStateEntry) vm_change_state_head; + +/** + * qemu_add_vm_change_state_handler_prio: + * @cb: the callback to invoke + * @opaque: user data passed to the callback + * @priority: low priorities execute first when the vm runs and the reverse is + * true when the vm stops + * + * Register a callback function that is invoked when the vm starts or stops + * running. + * + * Returns: an entry to be freed using qemu_del_vm_change_state_handler() + */ +VMChangeStateEntry *qemu_add_vm_change_state_handler_prio( + VMChangeStateHandler *cb, void *opaque, int priority) +{ + VMChangeStateEntry *e; + VMChangeStateEntry *other; + + e = g_malloc0(sizeof(*e)); + e->cb = cb; + e->opaque = opaque; + e->priority = priority; + + /* Keep list sorted in ascending priority order */ + QTAILQ_FOREACH(other, &vm_change_state_head, entries) { + if (priority < other->priority) { + QTAILQ_INSERT_BEFORE(other, e, entries); + return e; + } + } + + QTAILQ_INSERT_TAIL(&vm_change_state_head, e, entries); + return e; +} + +VMChangeStateEntry *qemu_add_vm_change_state_handler(VMChangeStateHandler *cb, + void *opaque) +{ + return qemu_add_vm_change_state_handler_prio(cb, opaque, 0); +} + +void qemu_del_vm_change_state_handler(VMChangeStateEntry *e) +{ + QTAILQ_REMOVE(&vm_change_state_head, e, entries); + g_free(e); +} + +void vm_state_notify(int running, RunState state) +{ + VMChangeStateEntry *e, *next; + + trace_vm_state_notify(running, state, RunState_str(state)); + + if (running) { + QTAILQ_FOREACH_SAFE(e, &vm_change_state_head, entries, next) { + e->cb(e->opaque, running, state); + } + } else { + QTAILQ_FOREACH_REVERSE_SAFE(e, &vm_change_state_head, entries, next) { + e->cb(e->opaque, running, state); + } + } +} + +static ShutdownCause reset_requested; +static ShutdownCause shutdown_requested; +static int shutdown_signal; +static pid_t shutdown_pid; +static int powerdown_requested; +static int debug_requested; +static int suspend_requested; +static bool preconfig_exit_requested = true; +static WakeupReason wakeup_reason; +static NotifierList powerdown_notifiers = + NOTIFIER_LIST_INITIALIZER(powerdown_notifiers); +static NotifierList suspend_notifiers = + NOTIFIER_LIST_INITIALIZER(suspend_notifiers); +static NotifierList wakeup_notifiers = + NOTIFIER_LIST_INITIALIZER(wakeup_notifiers); +static NotifierList shutdown_notifiers = + NOTIFIER_LIST_INITIALIZER(shutdown_notifiers); +static uint32_t wakeup_reason_mask = ~(1 << QEMU_WAKEUP_REASON_NONE); + +ShutdownCause qemu_shutdown_requested_get(void) +{ + return shutdown_requested; +} + +ShutdownCause qemu_reset_requested_get(void) +{ + return reset_requested; +} + +static int qemu_shutdown_requested(void) +{ + return atomic_xchg(&shutdown_requested, SHUTDOWN_CAUSE_NONE); +} + +static void qemu_kill_report(void) +{ + if (!qtest_driver() && shutdown_signal) { + if (shutdown_pid == 0) { + /* This happens for eg ^C at the terminal, so it's worth + * avoiding printing an odd message in that case. + */ + error_report("terminating on signal %d", shutdown_signal); + } else { + char *shutdown_cmd = qemu_get_pid_name(shutdown_pid); + + error_report("terminating on signal %d from pid " FMT_pid " (%s)", + shutdown_signal, shutdown_pid, + shutdown_cmd ? shutdown_cmd : "<unknown process>"); + g_free(shutdown_cmd); + } + shutdown_signal = 0; + } +} + +static ShutdownCause qemu_reset_requested(void) +{ + ShutdownCause r = reset_requested; + + if (r && replay_checkpoint(CHECKPOINT_RESET_REQUESTED)) { + reset_requested = SHUTDOWN_CAUSE_NONE; + return r; + } + return SHUTDOWN_CAUSE_NONE; +} + +static int qemu_suspend_requested(void) +{ + int r = suspend_requested; + if (r && replay_checkpoint(CHECKPOINT_SUSPEND_REQUESTED)) { + suspend_requested = 0; + return r; + } + return false; +} + +static WakeupReason qemu_wakeup_requested(void) +{ + return wakeup_reason; +} + +static int qemu_powerdown_requested(void) +{ + int r = powerdown_requested; + powerdown_requested = 0; + return r; +} + +static int qemu_debug_requested(void) +{ + int r = debug_requested; + debug_requested = 0; + return r; +} + +void qemu_exit_preconfig_request(void) +{ + preconfig_exit_requested = true; +} + +/* + * Reset the VM. Issue an event unless @reason is SHUTDOWN_CAUSE_NONE. + */ +void qemu_system_reset(ShutdownCause reason) +{ + MachineClass *mc; + + mc = current_machine ? MACHINE_GET_CLASS(current_machine) : NULL; + + cpu_synchronize_all_states(); + + if (mc && mc->reset) { + mc->reset(current_machine); + } else { + qemu_devices_reset(); + } + if (reason && reason != SHUTDOWN_CAUSE_SUBSYSTEM_RESET) { + qapi_event_send_reset(shutdown_caused_by_guest(reason), reason); + } + cpu_synchronize_all_post_reset(); +} + +/* + * Wake the VM after suspend. + */ +static void qemu_system_wakeup(void) +{ + MachineClass *mc; + + mc = current_machine ? MACHINE_GET_CLASS(current_machine) : NULL; + + if (mc && mc->wakeup) { + mc->wakeup(current_machine); + } +} + +void qemu_system_guest_panicked(GuestPanicInformation *info) +{ + qemu_log_mask(LOG_GUEST_ERROR, "Guest crashed"); + + if (current_cpu) { + current_cpu->crash_occurred = true; + } + qapi_event_send_guest_panicked(GUEST_PANIC_ACTION_PAUSE, + !!info, info); + vm_stop(RUN_STATE_GUEST_PANICKED); + if (!no_shutdown) { + qapi_event_send_guest_panicked(GUEST_PANIC_ACTION_POWEROFF, + !!info, info); + qemu_system_shutdown_request(SHUTDOWN_CAUSE_GUEST_PANIC); + } + + if (info) { + if (info->type == GUEST_PANIC_INFORMATION_TYPE_HYPER_V) { + qemu_log_mask(LOG_GUEST_ERROR, "\nHV crash parameters: (%#"PRIx64 + " %#"PRIx64" %#"PRIx64" %#"PRIx64" %#"PRIx64")\n", + info->u.hyper_v.arg1, + info->u.hyper_v.arg2, + info->u.hyper_v.arg3, + info->u.hyper_v.arg4, + info->u.hyper_v.arg5); + } else if (info->type == GUEST_PANIC_INFORMATION_TYPE_S390) { + qemu_log_mask(LOG_GUEST_ERROR, " on cpu %d: %s\n" + "PSW: 0x%016" PRIx64 " 0x%016" PRIx64"\n", + info->u.s390.core, + S390CrashReason_str(info->u.s390.reason), + info->u.s390.psw_mask, + info->u.s390.psw_addr); + } + qapi_free_GuestPanicInformation(info); + } +} + +void qemu_system_guest_crashloaded(GuestPanicInformation *info) +{ + qemu_log_mask(LOG_GUEST_ERROR, "Guest crash loaded"); + + qapi_event_send_guest_crashloaded(GUEST_PANIC_ACTION_RUN, + !!info, info); + + if (info) { + qapi_free_GuestPanicInformation(info); + } +} + +void qemu_system_reset_request(ShutdownCause reason) +{ + if (no_reboot && reason != SHUTDOWN_CAUSE_SUBSYSTEM_RESET) { + shutdown_requested = reason; + } else { + reset_requested = reason; + } + cpu_stop_current(); + qemu_notify_event(); +} + +static void qemu_system_suspend(void) +{ + pause_all_vcpus(); + notifier_list_notify(&suspend_notifiers, NULL); + runstate_set(RUN_STATE_SUSPENDED); + qapi_event_send_suspend(); +} + +void qemu_system_suspend_request(void) +{ + if (runstate_check(RUN_STATE_SUSPENDED)) { + return; + } + suspend_requested = 1; + cpu_stop_current(); + qemu_notify_event(); +} + +void qemu_register_suspend_notifier(Notifier *notifier) +{ + notifier_list_add(&suspend_notifiers, notifier); +} + +void qemu_system_wakeup_request(WakeupReason reason, Error **errp) +{ + trace_system_wakeup_request(reason); + + if (!runstate_check(RUN_STATE_SUSPENDED)) { + error_setg(errp, + "Unable to wake up: guest is not in suspended state"); + return; + } + if (!(wakeup_reason_mask & (1 << reason))) { + return; + } + runstate_set(RUN_STATE_RUNNING); + wakeup_reason = reason; + qemu_notify_event(); +} + +void qemu_system_wakeup_enable(WakeupReason reason, bool enabled) +{ + if (enabled) { + wakeup_reason_mask |= (1 << reason); + } else { + wakeup_reason_mask &= ~(1 << reason); + } +} + +void qemu_register_wakeup_notifier(Notifier *notifier) +{ + notifier_list_add(&wakeup_notifiers, notifier); +} + +void qemu_register_wakeup_support(void) +{ + wakeup_suspend_enabled = true; +} + +bool qemu_wakeup_suspend_enabled(void) +{ + return wakeup_suspend_enabled; +} + +void qemu_system_killed(int signal, pid_t pid) +{ + shutdown_signal = signal; + shutdown_pid = pid; + no_shutdown = 0; + + /* Cannot call qemu_system_shutdown_request directly because + * we are in a signal handler. + */ + shutdown_requested = SHUTDOWN_CAUSE_HOST_SIGNAL; + qemu_notify_event(); +} + +void qemu_system_shutdown_request(ShutdownCause reason) +{ + trace_qemu_system_shutdown_request(reason); + replay_shutdown_request(reason); + shutdown_requested = reason; + qemu_notify_event(); +} + +static void qemu_system_powerdown(void) +{ + qapi_event_send_powerdown(); + notifier_list_notify(&powerdown_notifiers, NULL); +} + +static void qemu_system_shutdown(ShutdownCause cause) +{ + qapi_event_send_shutdown(shutdown_caused_by_guest(cause), cause); + notifier_list_notify(&shutdown_notifiers, &cause); +} + +void qemu_system_powerdown_request(void) +{ + trace_qemu_system_powerdown_request(); + powerdown_requested = 1; + qemu_notify_event(); +} + +void qemu_register_powerdown_notifier(Notifier *notifier) +{ + notifier_list_add(&powerdown_notifiers, notifier); +} + +void qemu_register_shutdown_notifier(Notifier *notifier) +{ + notifier_list_add(&shutdown_notifiers, notifier); +} + +void qemu_system_debug_request(void) +{ + debug_requested = 1; + qemu_notify_event(); +} + +static bool main_loop_should_exit(void) +{ + RunState r; + ShutdownCause request; + + if (preconfig_exit_requested) { + if (runstate_check(RUN_STATE_PRECONFIG)) { + runstate_set(RUN_STATE_PRELAUNCH); + } + preconfig_exit_requested = false; + return true; + } + if (qemu_debug_requested()) { + vm_stop(RUN_STATE_DEBUG); + } + if (qemu_suspend_requested()) { + qemu_system_suspend(); + } + request = qemu_shutdown_requested(); + if (request) { + qemu_kill_report(); + qemu_system_shutdown(request); + if (no_shutdown) { + vm_stop(RUN_STATE_SHUTDOWN); + } else { + return true; + } + } + request = qemu_reset_requested(); + if (request) { + pause_all_vcpus(); + qemu_system_reset(request); + resume_all_vcpus(); + /* + * runstate can change in pause_all_vcpus() + * as iothread mutex is unlocked + */ + if (!runstate_check(RUN_STATE_RUNNING) && + !runstate_check(RUN_STATE_INMIGRATE) && + !runstate_check(RUN_STATE_FINISH_MIGRATE)) { + runstate_set(RUN_STATE_PRELAUNCH); + } + } + if (qemu_wakeup_requested()) { + pause_all_vcpus(); + qemu_system_wakeup(); + notifier_list_notify(&wakeup_notifiers, &wakeup_reason); + wakeup_reason = QEMU_WAKEUP_REASON_NONE; + resume_all_vcpus(); + qapi_event_send_wakeup(); + } + if (qemu_powerdown_requested()) { + qemu_system_powerdown(); + } + if (qemu_vmstop_requested(&r)) { + vm_stop(r); + } + return false; +} + +static void main_loop(void) +{ +#ifdef CONFIG_PROFILER + int64_t ti; +#endif + while (!main_loop_should_exit()) { +#ifdef CONFIG_PROFILER + ti = profile_getclock(); +#endif + main_loop_wait(false); +#ifdef CONFIG_PROFILER + dev_time += profile_getclock() - ti; +#endif + } +} + +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", + error_get_progname()); + +#define QEMU_OPTIONS_GENERATE_HELP +#include "qemu-options-wrapper.h" + + 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); +} + +#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 QEMU_OPTIONS_GENERATE_OPTIONS +#include "qemu-options-wrapper.h" + { NULL }, +}; + +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 = { "SUNW,tcx" }, + }, + [VGA_CG3] = { + .opt_name = "cg3", + .name = "CG3 framebuffer", + .class_names = { "cgthree" }, + }, + [VGA_XENFB] = { + .opt_name = "xenfb", + .name = "Xen paravirtualized framebuffer", + }, +}; + +static bool vga_interface_available(VGAInterfaceType t) +{ + const VGAInterfaceInfo *ti = &vga_interfaces[t]; + + assert(t < VGA_TYPE_MAX); + return !ti->class_names[0] || + object_class_by_name(ti->class_names[0]) || + object_class_by_name(ti->class_names[1]); +} + +static const char * +get_default_vga_model(const MachineClass *machine_class) +{ + if (machine_class->default_display) { + return machine_class->default_display; + } 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 ?: "", + 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 *optarg) +{ + DisplayOptions *opts; + Visitor *v; + + v = qobject_input_visitor_new_str(optarg, "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, "sdl", &opts)) { + /* + * sdl DisplayType needs hand-crafted parser instead of + * parse_display_qapi() due to some options not in + * DisplayOptions, specifically: + * - frame + * Already deprecated. + * - ctrl_grab + alt_grab + * Not clear yet what happens to them long-term. Should + * replaced by something better or deprecated and dropped. + */ + dpy.type = DISPLAY_TYPE_SDL; + while (*opts) { + const char *nextopt; + + if (strstart(opts, ",alt_grab=", &nextopt)) { + opts = nextopt; + if (strstart(opts, "on", &nextopt)) { + alt_grab = 1; + } else if (strstart(opts, "off", &nextopt)) { + alt_grab = 0; + } else { + goto invalid_sdl_args; + } + } else if (strstart(opts, ",ctrl_grab=", &nextopt)) { + opts = nextopt; + if (strstart(opts, "on", &nextopt)) { + ctrl_grab = 1; + } else if (strstart(opts, "off", &nextopt)) { + ctrl_grab = 0; + } else { + goto invalid_sdl_args; + } + } else if (strstart(opts, ",window_close=", &nextopt)) { + opts = nextopt; + dpy.has_window_close = true; + if (strstart(opts, "on", &nextopt)) { + dpy.window_close = true; + } else if (strstart(opts, "off", &nextopt)) { + dpy.window_close = false; + } else { + goto invalid_sdl_args; + } + } else if (strstart(opts, ",show-cursor=", &nextopt)) { + opts = nextopt; + dpy.has_show_cursor = true; + if (strstart(opts, "on", &nextopt)) { + dpy.show_cursor = true; + } else if (strstart(opts, "off", &nextopt)) { + dpy.show_cursor = false; + } else { + goto invalid_sdl_args; + } + } else if (strstart(opts, ",gl=", &nextopt)) { + opts = nextopt; + dpy.has_gl = true; + if (strstart(opts, "on", &nextopt)) { + dpy.gl = DISPLAYGL_MODE_ON; + } else if (strstart(opts, "core", &nextopt)) { + dpy.gl = DISPLAYGL_MODE_CORE; + } else if (strstart(opts, "es", &nextopt)) { + dpy.gl = DISPLAYGL_MODE_ES; + } else if (strstart(opts, "off", &nextopt)) { + dpy.gl = DISPLAYGL_MODE_OFF; + } else { + goto invalid_sdl_args; + } + } else { + invalid_sdl_args: + error_report("invalid SDL option string"); + exit(1); + } + opts = nextopt; + } + } else if (strstart(p, "vnc", &opts)) { + /* + * vnc isn't a (local) DisplayType but a protocol for remote + * display access. + */ + if (*opts == '=') { + vnc_parse(opts + 1, &error_fatal); + } else { + error_report("VNC requires a display argument vnc=<display>"); + exit(1); + } + } else { + parse_display_qapi(p); + } +} + +char *qemu_find_file(int type, const char *name) +{ + int i; + const char *subdir; + char *buf; + + /* Try the name as a straight path first */ + if (access(name, R_OK) == 0) { + trace_load_file(name, name); + return g_strdup(name); + } + + switch (type) { + case QEMU_FILE_TYPE_BIOS: + subdir = ""; + break; + case QEMU_FILE_TYPE_KEYMAP: + subdir = "keymaps/"; + break; + default: + abort(); + } + + for (i = 0; i < data_dir_idx; i++) { + buf = g_strdup_printf("%s/%s%s", data_dir[i], subdir, name); + if (access(buf, R_OK) == 0) { + trace_load_file(name, buf); + return buf; + } + g_free(buf); + } + return NULL; +} + +static void qemu_add_data_dir(const char *path) +{ + int i; + + if (path == NULL) { + return; + } + if (data_dir_idx == ARRAY_SIZE(data_dir)) { + return; + } + for (i = 0; i < data_dir_idx; i++) { + if (strcmp(data_dir[i], path) == 0) { + return; /* duplicate */ + } + } + data_dir[data_dir_idx++] = g_strdup(path); +} + +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; + 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"); + + /* we need name and either a file or the content string */ + if (!(nonempty_str(name) && (nonempty_str(file) || nonempty_str(str)))) { + error_setg(errp, "invalid argument(s)"); + return -1; + } + if (nonempty_str(file) && nonempty_str(str)) { + error_setg(errp, "file and string are mutually exclusive"); + 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 (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 { + 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 *optarg, const char *mode, bool pretty) +{ + static int monitor_device_index = 0; + QemuOpts *opts; + const char *p; + char label[32]; + + if (strstart(optarg, "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, optarg, true); + if (!opts) { + error_report("parse error: %s", optarg); + 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 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; +} + +int serial_max_hds(void) +{ + return num_serial_hds; +} + +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 MachineClass *machine_parse(const char *name, GSList *machines) +{ + MachineClass *mc; + GSList *el; + + if (is_help_option(name)) { + 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)" : ""); + } + exit(0); + } + + mc = find_machine(name, machines); + if (!mc) { + error_report("unsupported machine type"); + error_printf("Use -machine help to list supported machines\n"); + exit(1); + } + return mc; +} + +void qemu_add_exit_notifier(Notifier *notify) +{ + notifier_list_add(&exit_notifiers, notify); +} + +void qemu_remove_exit_notifier(Notifier *notify) +{ + notifier_remove(notify); +} + +static void qemu_run_exit_notifiers(void) +{ + notifier_list_notify(&exit_notifiers, NULL); +} + +static const char *pid_file; +static Notifier qemu_unlink_pidfile_notifier; + +static void qemu_unlink_pidfile(Notifier *n, void *data) +{ + if (pid_file) { + unlink(pid_file); + } +} + +bool machine_init_done; + +void qemu_add_machine_init_done_notifier(Notifier *notify) +{ + notifier_list_add(&machine_init_done_notifiers, notify); + if (machine_init_done) { + notify->notify(notify, NULL); + } +} + +void qemu_remove_machine_init_done_notifier(Notifier *notify) +{ + notifier_remove(notify); +} + +static void qemu_run_machine_init_done_notifiers(void) +{ + machine_init_done = true; + notifier_list_notify(&machine_init_done_notifiers, NULL); +} + +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(void) +{ + GSList *machines = object_class_get_list(TYPE_MACHINE, false); + MachineClass *machine_class = find_default_machine(machines); + const char *optarg; + QemuOpts *opts; + Location loc; + + loc_push_none(&loc); + + opts = qemu_get_machine_opts(); + qemu_opts_loc_restore(opts); + + optarg = qemu_opt_get(opts, "type"); + if (optarg) { + machine_class = machine_parse(optarg, machines); + } + + if (!machine_class) { + error_report("No machine specified, and there is no default"); + error_printf("Use -machine help to list supported machines\n"); + exit(1); + } + + loc_pop(&loc); + g_slist_free(machines); + return machine_class; +} + +static int object_parse_property_opt(Object *obj, + const char *name, const char *value, + const char *skip, Error **errp) +{ + Error *local_err = NULL; + + if (g_str_equal(name, skip)) { + return 0; + } + + object_property_parse(obj, value, name, &local_err); + + if (local_err) { + error_propagate(errp, local_err); + return -1; + } + + return 0; +} + +static int machine_set_property(void *opaque, + const char *name, const char *value, + Error **errp) +{ + g_autofree char *qom_name = g_strdup(name); + char *p; + + for (p = qom_name; *p; p++) { + if (*p == '_') { + *p = '-'; + } + } + + /* Legacy options do not correspond to MachineState properties. */ + if (g_str_equal(qom_name, "accel")) { + return 0; + } + if (g_str_equal(qom_name, "igd-passthru")) { + object_register_sugar_prop(ACCEL_CLASS_NAME("xen"), qom_name, value); + return 0; + } + if (g_str_equal(qom_name, "kvm-shadow-mem") || + g_str_equal(qom_name, "kernel-irqchip")) { + object_register_sugar_prop(ACCEL_CLASS_NAME("kvm"), qom_name, value); + return 0; + } + + return object_parse_property_opt(opaque, name, value, "type", errp); +} + +/* + * 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_initial(const char *type, QemuOpts *opts) +{ + if (user_creatable_print_help(type, opts)) { + exit(0); + } + + /* + * Objects should not be made "delayed" without a reason. If you + * add one, state the reason in a comment! + */ + + /* Reason: rng-egd property "chardev" */ + if (g_str_equal(type, "rng-egd")) { + 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: 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; + } + + /* Memory allocation by backends needs to be done + * after configure_accelerator() (due to the tcg_enabled() + * checks at memory_region_init_*()). + * + * Also, 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; +} + + +/* + * The remainder of object creation happens after the + * creation of chardev, fsdev, net clients and device data types. + */ +static bool object_create_delayed(const char *type, QemuOpts *opts) +{ + return !object_create_initial(type, opts); +} + + +static void set_memory_options(uint64_t *ram_slots, ram_addr_t *maxram_size, + MachineClass *mc) +{ + uint64_t sz; + const char *mem_str; + const ram_addr_t default_ram_size = mc->default_ram_size; + QemuOpts *opts = qemu_find_opts_singleton("memory"); + Location loc; + + loc_push_none(&loc); + qemu_opts_loc_restore(opts); + + sz = 0; + mem_str = qemu_opt_get(opts, "size"); + if (mem_str) { + if (!*mem_str) { + error_report("missing 'size' option value"); + exit(EXIT_FAILURE); + } + + sz = qemu_opt_get_size(opts, "size", ram_size); + + /* Fix up legacy suffix-less format */ + if (g_ascii_isdigit(mem_str[strlen(mem_str) - 1])) { + uint64_t overflow_check = sz; + + sz *= MiB; + if (sz / MiB != overflow_check) { + error_report("too large 'size' option value"); + exit(EXIT_FAILURE); + } + } + } + + /* backward compatibility behaviour for case "-m 0" */ + if (sz == 0) { + sz = default_ram_size; + } + + sz = QEMU_ALIGN_UP(sz, 8192); + ram_size = sz; + if (ram_size != sz) { + error_report("ram size too large"); + exit(EXIT_FAILURE); + } + + /* store value for the future use */ + qemu_opt_set_number(opts, "size", ram_size, &error_abort); + *maxram_size = ram_size; + + if (qemu_opt_get(opts, "maxmem")) { + uint64_t slots; + + sz = qemu_opt_get_size(opts, "maxmem", 0); + slots = qemu_opt_get_number(opts, "slots", 0); + if (sz < ram_size) { + error_report("invalid value of -m option maxmem: " + "maximum memory size (0x%" PRIx64 ") must be at least " + "the initial memory size (0x" RAM_ADDR_FMT ")", + sz, ram_size); + exit(EXIT_FAILURE); + } else if (slots && sz == ram_size) { + error_report("invalid value of -m option maxmem: " + "memory slots were specified but maximum memory size " + "(0x%" PRIx64 ") is equal to the initial memory size " + "(0x" RAM_ADDR_FMT ")", sz, ram_size); + exit(EXIT_FAILURE); + } + + *maxram_size = sz; + *ram_slots = slots; + } else if (qemu_opt_get(opts, "slots")) { + error_report("invalid -m option value: missing 'maxmem' option"); + exit(EXIT_FAILURE); + } + + loc_pop(&loc); +} + +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; +} + +static int qemu_read_default_config_file(void) +{ + int ret; + + ret = qemu_read_config_file(CONFIG_QEMU_CONFDIR "/qemu.conf"); + if (ret < 0 && ret != -ENOENT) { + return ret; + } + + return 0; +} + +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) +{ + configure_icount(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; + + if (!ac) { + *p_init_failed = true; + error_report("invalid accelerator %s", acc); + return 0; + } + 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); + + ret = accel_init_machine(accel, current_machine); + if (ret < 0) { + *p_init_failed = true; + error_report("failed to initialize %s: %s", + acc, strerror(-ret)); + return 0; + } + + return 1; +} + +static void configure_accelerators(const char *progname) +{ + const char *accel; + bool init_failed = false; + + qemu_opts_foreach(qemu_find_opts("icount"), + do_configure_icount, NULL, &error_fatal); + + accel = qemu_opt_get(qemu_get_machine_opts(), "accel"); + if (QTAILQ_EMPTY(&qemu_accel_opts.head)) { + char **accel_list, **tmp; + + if (accel == 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 */ + accel = "kvm:tcg"; + } else { + accel = "tcg:kvm"; + } + } else if (have_kvm) { + accel = "kvm"; + } else if (have_tcg) { + accel = "tcg"; + } else { + error_report("No accelerator selected and" + " no default accelerator available"); + exit(1); + } + } + accel_list = g_strsplit(accel, ":", 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 (accel != 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) { + AccelClass *ac = ACCEL_GET_CLASS(current_accel()); + error_report("falling back to %s", ac->name); + } + + if (use_icount && !(tcg_enabled() || qtest_enabled())) { + error_report("-icount is not allowed with hardware virtualization"); + exit(1); + } +} + +int main(int argc, char **argv, char **envp) +{ + int i; + int snapshot, linux_boot; + const char *initrd_filename; + const char *kernel_filename, *kernel_cmdline; + const char *boot_order = NULL; + const char *boot_once = NULL; + DisplayState *ds; + QemuOpts *opts, *machine_opts; + QemuOpts *icount_opts = NULL, *accel_opts = NULL; + QemuOptsList *olist; + int optind; + const char *optarg; + const char *loadvm = NULL; + MachineClass *machine_class; + const char *cpu_option; + const char *vga_model = NULL; + const char *qtest_chrdev = NULL; + const char *qtest_log = NULL; + const char *incoming = NULL; + bool userconfig = true; + bool nographic = false; + int display_remote = 0; + const char *log_mask = NULL; + const char *log_file = NULL; + char *trace_file = NULL; + ram_addr_t maxram_size; + uint64_t ram_slots = 0; + FILE *vmstate_dump_file = NULL; + Error *main_loop_err = NULL; + Error *err = NULL; + bool list_data_dirs = false; + char *dir, **dirs; + BlockdevOptionsQueue bdo_queue = QSIMPLEQ_HEAD_INITIALIZER(bdo_queue); + QemuPluginList plugin_list = QTAILQ_HEAD_INITIALIZER(plugin_list); + + os_set_line_buffering(); + + error_init(argv[0]); + module_call_init(MODULE_INIT_TRACE); + + qemu_init_cpu_list(); + qemu_init_cpu_loop(); + + qemu_mutex_lock_iothread(); + + atexit(qemu_run_exit_notifiers); + qemu_init_exec_dir(argv[0]); + + module_call_init(MODULE_INIT_QOM); + + 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_machine_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_realtime_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); + module_call_init(MODULE_INIT_OPTS); + + runstate_init(); + precopy_infrastructure_init(); + postcopy_infrastructure_init(); + monitor_init_globals(); + + if (qcrypto_init(&err) < 0) { + error_reportf_err(err, "cannot initialize crypto: "); + exit(1); + } + + QTAILQ_INIT(&vm_change_state_head); + os_setup_early_signal_handling(); + + cpu_option = NULL; + snapshot = 0; + + nb_nics = 0; + + bdrv_init_with_whitelist(); + + autostart = 1; + + /* 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; + } + } + } + + if (userconfig) { + if (qemu_read_default_config_file() < 0) { + exit(1); + } + } + + /* 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: + if (drive_def(optarg) == NULL) { + exit(1); + } + break; + case QEMU_OPTION_set: + if (qemu_set_option(optarg) != 0) + exit(1); + 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: + { + Error *blocker = NULL; + snapshot = 1; + error_setg(&blocker, QERR_REPLAY_NOT_SUPPORTED, + "-snapshot"); + replay_add_blocker(blocker); + } + 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: + olist = qemu_find_opts("machine"); + qemu_opts_parse_noisily(olist, "graphics=off", false); + nographic = true; + dpy.type = DISPLAY_TYPE_NONE; + break; + case QEMU_OPTION_curses: +#ifdef CONFIG_CURSES + dpy.type = DISPLAY_TYPE_CURSES; +#else + error_report("curses or iconv support is disabled"); + exit(1); +#endif + 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: + qemu_opts_set(qemu_find_opts("machine"), 0, "kernel", optarg, + &error_abort); + break; + case QEMU_OPTION_initrd: + qemu_opts_set(qemu_find_opts("machine"), 0, "initrd", optarg, + &error_abort); + break; + case QEMU_OPTION_append: + qemu_opts_set(qemu_find_opts("machine"), 0, "append", optarg, + &error_abort); + break; + case QEMU_OPTION_dtb: + qemu_opts_set(qemu_find_opts("machine"), 0, "dtb", optarg, + &error_abort); + break; + case QEMU_OPTION_cdrom: + drive_add(IF_DEFAULT, 2, optarg, CDROM_OPTS); + break; + case QEMU_OPTION_boot: + opts = qemu_opts_parse_noisily(qemu_find_opts("boot-opts"), + optarg, true); + if (!opts) { + exit(1); + } + 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 (net_client_parse(qemu_find_opts("netdev"), optarg) == -1) { + exit(1); + } + break; + case QEMU_OPTION_nic: + default_net = 0; + if (net_client_parse(qemu_find_opts("nic"), optarg) == -1) { + exit(1); + } + break; + case QEMU_OPTION_net: + default_net = 0; + if (net_client_parse(qemu_find_opts("net"), optarg) == -1) { + exit(1); + } + 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_audio_help: + audio_legacy_help(); + exit (0); + break; + case QEMU_OPTION_audiodev: + audio_parse_option(optarg); + break; + case QEMU_OPTION_soundhw: + select_soundhw (optarg); + 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) { + exit(EXIT_FAILURE); + } + 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; + 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(optarg); + } + break; + case QEMU_OPTION_bios: + qemu_opts_set(qemu_find_opts("machine"), 0, "firmware", optarg, + &error_abort); + break; + case QEMU_OPTION_singlestep: + singlestep = 1; + 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_watchdog: + if (watchdog) { + error_report("only one watchdog option may be given"); + return 1; + } + watchdog = optarg; + break; + case QEMU_OPTION_watchdog_action: + if (select_watchdog_action(optarg) == -1) { + error_report("unknown -watchdog-action parameter"); + exit(1); + } + 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_alt_grab: + alt_grab = 1; + break; + case QEMU_OPTION_ctrl_grab: + ctrl_grab = 1; + break; + case QEMU_OPTION_no_quit: + dpy.has_window_close = true; + dpy.window_close = false; + break; + case QEMU_OPTION_sdl: +#ifdef CONFIG_SDL + dpy.type = DISPLAY_TYPE_SDL; + break; +#else + error_report("SDL support is disabled"); + exit(1); +#endif + 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_exit_requested = false; + break; + case QEMU_OPTION_enable_kvm: + olist = qemu_find_opts("machine"); + qemu_opts_parse_noisily(olist, "accel=kvm", false); + break; + case QEMU_OPTION_M: + case QEMU_OPTION_machine: + olist = qemu_find_opts("machine"); + opts = qemu_opts_parse_noisily(olist, optarg, true); + if (!opts) { + exit(1); + } + break; + case QEMU_OPTION_no_kvm: + olist = qemu_find_opts("machine"); + qemu_opts_parse_noisily(olist, "accel=tcg", false); + 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); + } + if (optarg && strchr(optarg, ':')) { + error_report("Don't use ':' with -accel, " + "use -M accel=... for now instead"); + exit(1); + } + break; + case QEMU_OPTION_usb: + olist = qemu_find_opts("machine"); + qemu_opts_parse_noisily(olist, "usb=on", false); + break; + case QEMU_OPTION_usbdevice: + error_report("'-usbdevice' is deprecated, please use " + "'-device usb-...' instead"); + olist = qemu_find_opts("machine"); + qemu_opts_parse_noisily(olist, "usb=on", false); + add_device_config(DEV_USB, optarg); + break; + case QEMU_OPTION_device: + if (!qemu_opts_parse_noisily(qemu_find_opts("device"), + optarg, true)) { + exit(1); + } + break; + case QEMU_OPTION_smp: + if (!qemu_opts_parse_noisily(qemu_find_opts("smp-opts"), + optarg, true)) { + exit(1); + } + break; + case QEMU_OPTION_vnc: + vnc_parse(optarg, &error_fatal); + break; + case QEMU_OPTION_no_acpi: + acpi_enabled = 0; + break; + case QEMU_OPTION_no_hpet: + no_hpet = 1; + break; + case QEMU_OPTION_no_reboot: + no_reboot = 1; + break; + case QEMU_OPTION_no_shutdown: + no_shutdown = 1; + break; + case QEMU_OPTION_show_cursor: + warn_report("The -show-cursor option is deprecated, " + "use -display {sdl,gtk},show-cursor=on instead"); + dpy.has_show_cursor = true; + dpy.show_cursor = true; + 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); + } + 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_tb_size: +#ifndef CONFIG_TCG + error_report("TCG is disabled"); + exit(1); +#endif + warn_report("The -tb-size option is deprecated, use -accel tcg,tb-size instead"); + object_register_sugar_prop(ACCEL_CLASS_NAME("tcg"), "tb-size", optarg); + 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 (!(xen_available())) { + error_report("Option not supported for this target"); + exit(1); + } + xen_domid = atoi(optarg); + break; + case QEMU_OPTION_xen_attach: + if (!(xen_available())) { + error_report("Option not supported for this target"); + exit(1); + } + xen_mode = XEN_ATTACH; + break; + case QEMU_OPTION_xen_domid_restrict: + if (!(xen_available())) { + error_report("Option not supported for this target"); + exit(1); + } + xen_domid_restrict = true; + break; + case QEMU_OPTION_trace: + g_free(trace_file); + trace_file = trace_opt_parse(optarg); + break; + case QEMU_OPTION_plugin: + qemu_plugin_opt_parse(optarg, &plugin_list); + break; + case QEMU_OPTION_readconfig: + { + int ret = qemu_read_config_file(optarg); + if (ret < 0) { + error_report("read config %s: %s", optarg, + strerror(-ret)); + exit(1); + } + break; + } + case QEMU_OPTION_spice: + olist = qemu_find_opts("spice"); + 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; + case QEMU_OPTION_writeconfig: + { + FILE *fp; + if (strcmp(optarg, "-") == 0) { + fp = stdout; + } else { + fp = fopen(optarg, "w"); + if (fp == NULL) { + error_report("open %s: %s", optarg, + strerror(errno)); + exit(1); + } + } + qemu_config_write(fp); + if (fp != stdout) { + fclose(fp); + } + break; + } + 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: + opts = qemu_opts_parse_noisily(qemu_find_opts("object"), + optarg, true); + if (!opts) { + exit(1); + } + break; + case QEMU_OPTION_realtime: + warn_report("'-realtime mlock=...' is deprecated, please use " + "'-overcommit mem-lock=...' instead"); + opts = qemu_opts_parse_noisily(qemu_find_opts("realtime"), + optarg, false); + if (!opts) { + exit(1); + } + /* Don't override the -overcommit option if set */ + enable_mlock = enable_mlock || + qemu_opt_get_bool(opts, "mlock", true); + break; + case QEMU_OPTION_overcommit: + opts = qemu_opts_parse_noisily(qemu_find_opts("overcommit"), + optarg, false); + if (!opts) { + exit(1); + } + /* Don't override the -realtime option if set */ + enable_mlock = 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_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; + default: + if (os_parse_cmd_args(popt->index, optarg)) { + 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(); + + user_register_global_props(); + + replay_configure(icount_opts); + + if (incoming && !preconfig_exit_requested) { + error_report("'preconfig' and 'incoming' options are " + "mutually exclusive"); + exit(EXIT_FAILURE); + } + + configure_rtc(qemu_find_opts_singleton("rtc")); + + machine_class = select_machine(); + object_set_machine_compat_props(machine_class->compat_props); + + set_memory_options(&ram_slots, &maxram_size, machine_class); + + os_daemonize(); + rcu_disable_atfork(); + + if (pid_file && !qemu_write_pidfile(pid_file, &err)) { + error_reportf_err(err, "cannot create PID file: "); + exit(1); + } + + qemu_unlink_pidfile_notifier.notify = qemu_unlink_pidfile; + qemu_add_exit_notifier(&qemu_unlink_pidfile_notifier); + + if (qemu_init_main_loop(&main_loop_err)) { + error_report_err(main_loop_err); + exit(1); + } + +#ifdef CONFIG_SECCOMP + olist = qemu_find_opts_err("sandbox", NULL); + if (olist) { + qemu_opts_foreach(olist, parse_sandbox, NULL, &error_fatal); + } +#endif + + qemu_opts_foreach(qemu_find_opts("name"), + parse_name, NULL, &error_fatal); + +#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 + + current_machine = MACHINE(object_new_with_class(OBJECT_CLASS(machine_class))); + if (machine_help_func(qemu_get_machine_opts(), current_machine)) { + exit(0); + } + object_property_add_child(object_get_root(), "machine", + OBJECT(current_machine), &error_abort); + object_property_add_child(container_get(OBJECT(current_machine), + "/unattached"), + "sysbus", OBJECT(sysbus_get_default()), + NULL); + + 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(); + + if (machine_class->hw_version) { + qemu_set_hw_version(machine_class->hw_version); + } + + if (cpu_option && is_help_option(cpu_option)) { + list_cpus(cpu_option); + exit(0); + } + + if (!trace_init_backends()) { + exit(1); + } + trace_init_file(trace_file); + + /* Open the logfile at this point and set the log mask if necessary. + */ + qemu_set_log_filename(log_file, &error_fatal); + if (log_mask) { + int mask; + mask = qemu_str_to_log_mask(log_mask); + if (!mask) { + qemu_print_log_usage(stdout); + exit(1); + } + qemu_set_log(mask); + } else { + qemu_set_log(0); + } + + /* add configured firmware directories */ + dirs = g_strsplit(CONFIG_QEMU_FIRMWAREPATH, G_SEARCHPATH_SEPARATOR_S, 0); + for (i = 0; dirs[i] != NULL; i++) { + qemu_add_data_dir(dirs[i]); + } + g_strfreev(dirs); + + /* try to find datadir relative to the executable path */ + dir = os_find_datadir(); + qemu_add_data_dir(dir); + g_free(dir); + + /* add the datadir specified when building */ + qemu_add_data_dir(CONFIG_QEMU_DATADIR); + + /* -L help lists the data directories and exits. */ + if (list_data_dirs) { + for (i = 0; i < data_dir_idx; i++) { + printf("%s\n", data_dir[i]); + } + exit(0); + } + + /* machine_class: default to UP */ + machine_class->max_cpus = machine_class->max_cpus ?: 1; + machine_class->min_cpus = machine_class->min_cpus ?: 1; + machine_class->default_cpus = machine_class->default_cpus ?: 1; + + /* default to machine_class->default_cpus */ + current_machine->smp.cpus = machine_class->default_cpus; + current_machine->smp.max_cpus = machine_class->default_cpus; + current_machine->smp.cores = 1; + current_machine->smp.threads = 1; + + machine_class->smp_parse(current_machine, + qemu_opts_find(qemu_find_opts("smp-opts"), NULL)); + + /* sanity-check smp_cpus and max_cpus against machine_class */ + if (current_machine->smp.cpus < machine_class->min_cpus) { + error_report("Invalid SMP CPUs %d. The min CPUs " + "supported by machine '%s' is %d", + current_machine->smp.cpus, + machine_class->name, machine_class->min_cpus); + exit(1); + } + if (current_machine->smp.max_cpus > machine_class->max_cpus) { + error_report("Invalid SMP CPUs %d. The max CPUs " + "supported by machine '%s' is %d", + current_machine->smp.max_cpus, + machine_class->name, machine_class->max_cpus); + exit(1); + } + + /* + * 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) { + qemu_opts_set_defaults(qemu_find_opts("machine"), + machine_class->default_machine_opts, 0); + } + + /* process plugin before CPUs are created, but once -smp has been parsed */ + if (qemu_plugin_load_list(&plugin_list)) { + exit(1); + } + + 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; + } + 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_monitor = 0; + default_net = 0; + default_vga = 0; + } + + if (is_daemonized()) { + if (!preconfig_exit_requested) { + error_report("'preconfig' and 'daemonize' options are " + "mutually exclusive"); + exit(EXIT_FAILURE); + } + + /* 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); + } +#ifdef CONFIG_CURSES + if (dpy.type == DISPLAY_TYPE_CURSES) { + error_report("curses display cannot be used with -daemonize"); + exit(1); + } +#endif + } + + 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 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", &error_abort); +#endif + } + } + if (dpy.type == DISPLAY_TYPE_DEFAULT) { + dpy.type = DISPLAY_TYPE_NONE; + } + + if ((alt_grab || ctrl_grab) && dpy.type != DISPLAY_TYPE_SDL) { + error_report("-alt-grab and -ctrl-grab are only valid " + "for SDL, ignoring option"); + } + if (dpy.has_window_close && + (dpy.type != DISPLAY_TYPE_GTK && dpy.type != DISPLAY_TYPE_SDL)) { + error_report("-no-quit 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); + } + + page_size_init(); + socket_init(); + + qemu_opts_foreach(qemu_find_opts("object"), + user_creatable_add_opts_foreach, + object_create_initial, &error_fatal); + + qemu_opts_foreach(qemu_find_opts("chardev"), + chardev_init_func, NULL, &error_fatal); + /* now chardevs have been created we may have semihosting to connect */ + qemu_semihosting_connect_chardevs(); + +#ifdef CONFIG_VIRTFS + qemu_opts_foreach(qemu_find_opts("fsdev"), + fsdev_init_func, NULL, &error_fatal); +#endif + + if (qemu_opts_foreach(qemu_find_opts("device"), + device_help_func, NULL, NULL)) { + exit(0); + } + + /* + * Note: we need to create block backends before + * machine_set_property(), so machine properties can refer to + * them. + */ + configure_blockdev(&bdo_queue, machine_class, snapshot); + + machine_opts = qemu_get_machine_opts(); + qemu_opt_foreach(machine_opts, machine_set_property, current_machine, + &error_fatal); + current_machine->ram_size = ram_size; + current_machine->maxram_size = maxram_size; + current_machine->ram_slots = ram_slots; + + /* + * Note: uses machine properties such as kernel-irqchip, must run + * after machine_set_property(). + */ + configure_accelerators(argv[0]); + + /* + * 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 configure_accelerator(). + */ + + if (!qtest_enabled() && machine_class->deprecation_reason) { + error_report("Machine type '%s' is deprecated: %s", + machine_class->name, machine_class->deprecation_reason); + } + + /* + * Note: creates a QOM object, must run only after global and + * compat properties have been set up. + */ + migration_object_init(); + + if (qtest_chrdev) { + qtest_server_init(qtest_chrdev, qtest_log, &error_fatal); + } + + machine_opts = qemu_get_machine_opts(); + kernel_filename = qemu_opt_get(machine_opts, "kernel"); + initrd_filename = qemu_opt_get(machine_opts, "initrd"); + kernel_cmdline = qemu_opt_get(machine_opts, "append"); + bios_name = qemu_opt_get(machine_opts, "firmware"); + + opts = qemu_opts_find(qemu_find_opts("boot-opts"), NULL); + if (opts) { + boot_order = qemu_opt_get(opts, "order"); + if (boot_order) { + validate_bootdevices(boot_order, &error_fatal); + } + + boot_once = qemu_opt_get(opts, "once"); + if (boot_once) { + validate_bootdevices(boot_once, &error_fatal); + } + + boot_menu = qemu_opt_get_bool(opts, "menu", boot_menu); + boot_strict = qemu_opt_get_bool(opts, "strict", false); + } + + if (!boot_order) { + boot_order = machine_class->default_boot_order; + } + + if (!kernel_cmdline) { + kernel_cmdline = ""; + current_machine->kernel_cmdline = (char *)kernel_cmdline; + } + + linux_boot = (kernel_filename != NULL); + + if (!linux_boot && *kernel_cmdline != '\0') { + error_report("-append only allowed with -kernel option"); + exit(1); + } + + if (!linux_boot && initrd_filename != NULL) { + error_report("-initrd only allowed with -kernel option"); + exit(1); + } + + if (semihosting_enabled() && !semihosting_get_argc() && kernel_filename) { + /* fall back to the -kernel/-append */ + semihosting_arg_fallback(kernel_filename, kernel_cmdline); + } + + /* spice needs the timers to be initialized by this point */ + qemu_spice_init(); + + cpu_ticks_init(); + + if (default_net) { + QemuOptsList *net = qemu_find_opts("net"); + qemu_opts_set(net, NULL, "type", "nic", &error_abort); +#ifdef CONFIG_SLIRP + qemu_opts_set(net, NULL, "type", "user", &error_abort); +#endif + } + + if (net_init_clients(&err) < 0) { + error_report_err(err); + exit(1); + } + + qemu_opts_foreach(qemu_find_opts("object"), + user_creatable_add_opts_foreach, + object_create_delayed, &error_fatal); + + tpm_init(); + + if (!xen_enabled()) { + /* On 32-bit hosts, QEMU is limited by virtual address space */ + if (ram_size > (2047 << 20) && HOST_LONG_BITS == 32) { + error_report("at most 2047 MB RAM can be simulated"); + exit(1); + } + } + + blk_mig_init(); + ram_mig_init(); + dirty_bitmap_mig_init(); + + qemu_opts_foreach(qemu_find_opts("mon"), + mon_init_func, NULL, &error_fatal); + + /* connect semihosting console input if requested */ + qemu_semihosting_console_init(); + + 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); + + /* 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); + } + + if (watchdog) { + i = select_watchdog(watchdog); + if (i > 0) + exit (i == 1 ? 1 : 0); + } + + /* This checkpoint is required by replay to separate prior clock + reading from the other reads, because timer polling functions query + clock values from the log. */ + replay_checkpoint(CHECKPOINT_INIT); + qdev_machine_init(); + + current_machine->boot_order = boot_order; + + /* 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); + } + parse_numa_opts(current_machine); + + /* do monitor/qmp handling at preconfig state if requested */ + main_loop(); + + audio_init_audiodevs(); + + /* from here on runstate is RUN_STATE_PRELAUNCH */ + machine_run_board_init(current_machine); + + realtime_init(); + + soundhw_init(); + + if (hax_enabled()) { + hax_sync_vcpus(); + } + + 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); + + cpu_synchronize_all_post_init(); + + rom_reset_order_override(); + + /* 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(); + } + + if (boot_once) { + qemu_boot_set(boot_once, &error_fatal); + qemu_register_reset(restore_boot_order, g_strdup(boot_order)); + } + + /* 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(); + } + + if (foreach_device_config(DEV_GDB, gdbserver_start) < 0) { + exit(1); + } + + qdev_machine_creation_done(); + + /* TODO: once all bus devices are qdevified, this should be done + * when bus is created by qdev.c */ + /* + * TODO: If we had a main 'reset container' that the whole system + * lived in, we could reset that using the multi-phase reset + * APIs. For the moment, we just reset the sysbus, which will cause + * all devices hanging off it (and all their child buses, recursively) + * to be reset. Note that this will *not* reset any Device objects + * which are not attached to some part of the qbus tree! + */ + qemu_register_reset(resettable_cold_reset_fn, sysbus_get_default()); + qemu_run_machine_init_done_notifiers(); + + if (rom_check_and_register_reset() != 0) { + error_report("rom check and register reset failed"); + exit(1); + } + + replay_start(); + + /* This checkpoint is required by replay to separate prior clock + reading from the other reads, because timer polling functions query + clock values from the log. */ + replay_checkpoint(CHECKPOINT_RESET); + qemu_system_reset(SHUTDOWN_CAUSE_NONE); + register_global_state(); + if (loadvm) { + Error *local_err = NULL; + if (load_snapshot(loadvm, &local_err) < 0) { + error_report_err(local_err); + autostart = 0; + exit(1); + } + } + if (replay_mode != REPLAY_MODE_NONE) { + replay_vmstate_init(); + } + + qdev_prop_check_globals(); + if (vmstate_dump_file) { + /* dump and exit */ + dump_vmstate_json_to_file(vmstate_dump_file); + return 0; + } + + if (incoming) { + Error *local_err = NULL; + qemu_start_incoming_migration(incoming, &local_err); + if (local_err) { + error_reportf_err(local_err, "-incoming %s: ", incoming); + exit(1); + } + } else if (autostart) { + vm_start(); + } + + accel_setup_post(current_machine); + os_setup_post(); + + main_loop(); + + gdbserver_cleanup(); + + /* + * cleaning up the migration object cancels any existing migration + * try to do this early so that it also stops using devices. + */ + migration_shutdown(); + + /* + * We must cancel all block jobs while the block layer is drained, + * or cancelling will be affected by throttling and thus may block + * for an extended period of time. + * vm_shutdown() will bdrv_drain_all(), so we may as well include + * it in the drained section. + * We do not need to end this section, because we do not want any + * requests happening from here on anyway. + */ + bdrv_drain_all_begin(); + + /* No more vcpu or device emulation activity beyond this point */ + vm_shutdown(); + replay_finish(); + + job_cancel_sync_all(); + bdrv_close_all(); + + res_free(); + + /* vhost-user must be cleaned up before chardevs. */ + tpm_cleanup(); + net_cleanup(); + audio_cleanup(); + monitor_cleanup(); + qemu_chr_cleanup(); + user_creatable_cleanup(); + /* TODO: unref root container, check all devices are ok */ + + return 0; +} |