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qemu/vl.c
Ashijeet Acharya d15c05fc1f migration: Add a new option to enable only-migratable 
Add a new option "--only-migratable" in qemu which will allow to add
only those devices which will not fail qemu after migration. Devices
set with the flag 'unmigratable' cannot be added when this option will
be used.

Signed-off-by: Ashijeet Acharya <ashijeetacharya@gmail.com>
Message-Id: <1484566314-3987-3-git-send-email-ashijeetacharya@gmail.com>
Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Reviewed-by: Juan Quintela <quintela@redhat.com>
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
2017-01-24 17:54:47 +00:00

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/*
* 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-version.h"
#include "qemu/cutils.h"
#include "qemu/help_option.h"
#include "qemu/uuid.h"
#ifdef CONFIG_SECCOMP
#include "sysemu/seccomp.h"
#endif
#if defined(CONFIG_VDE)
#include <libvdeplug.h>
#endif
#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 "hw/hw.h"
#include "hw/boards.h"
#include "sysemu/accel.h"
#include "hw/usb.h"
#include "hw/i386/pc.h"
#include "hw/isa/isa.h"
#include "hw/bt.h"
#include "sysemu/watchdog.h"
#include "hw/smbios/smbios.h"
#include "hw/acpi/acpi.h"
#include "hw/xen/xen.h"
#include "hw/qdev.h"
#include "hw/loader.h"
#include "monitor/qdev.h"
#include "sysemu/bt.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 "sysemu/char.h"
#include "qemu/bitmap.h"
#include "qemu/log.h"
#include "sysemu/blockdev.h"
#include "hw/block/block.h"
#include "migration/block.h"
#include "sysemu/tpm.h"
#include "sysemu/dma.h"
#include "audio/audio.h"
#include "migration/migration.h"
#include "sysemu/cpus.h"
#include "migration/colo.h"
#include "sysemu/kvm.h"
#include "sysemu/hax.h"
#include "qapi/qmp/qjson.h"
#include "qemu/option.h"
#include "qemu/config-file.h"
#include "qemu-options.h"
#include "qmp-commands.h"
#include "qemu/main-loop.h"
#ifdef CONFIG_VIRTFS
#include "fsdev/qemu-fsdev.h"
#endif
#include "sysemu/qtest.h"
#include "disas/disas.h"
#include "slirp/libslirp.h"
#include "trace.h"
#include "trace/control.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 "qom/object_interfaces.h"
#include "qapi-event.h"
#include "exec/semihost.h"
#include "crypto/init.h"
#include "sysemu/replay.h"
#include "qapi/qmp/qerror.h"
#include "sysemu/iothread.h"
#define MAX_VIRTIO_CONSOLES 1
#define MAX_SCLP_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 request_opengl = -1;
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;
int nb_nics;
NICInfo nd_table[MAX_NICS];
int autostart;
static int rtc_utc = 1;
static int rtc_date_offset = -1; /* -1 means no change */
QEMUClockType rtc_clock;
int vga_interface_type = VGA_NONE;
static int full_screen = 0;
static int no_frame = 0;
int no_quit = 0;
static bool grab_on_hover;
CharDriverState *serial_hds[MAX_SERIAL_PORTS];
CharDriverState *parallel_hds[MAX_PARALLEL_PORTS];
CharDriverState *virtcon_hds[MAX_VIRTIO_CONSOLES];
CharDriverState *sclp_hds[MAX_SCLP_CONSOLES];
int win2k_install_hack = 0;
int singlestep = 0;
int smp_cpus = 1;
int max_cpus = 1;
int smp_cores = 1;
int smp_threads = 1;
int acpi_enabled = 1;
int no_hpet = 0;
int fd_bootchk = 1;
static int no_reboot;
int no_shutdown = 0;
int cursor_hide = 1;
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;
size_t boot_splash_filedata_size;
uint8_t qemu_extra_params_fw[2];
int only_migratable; /* turn it off unless user states otherwise */
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;
static int has_defaults = 1;
static int default_serial = 1;
static int default_parallel = 1;
static int default_virtcon = 1;
static int default_sclp = 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 = "virtio-serial-pci", .flag = &default_virtcon },
{ .driver = "virtio-serial", .flag = &default_virtcon },
{ .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 },
};
static QemuOptsList qemu_rtc_opts = {
.name = "rtc",
.head = QTAILQ_HEAD_INITIALIZER(qemu_rtc_opts.head),
.desc = {
{
.name = "base",
.type = QEMU_OPT_STRING,
},{
.name = "clock",
.type = QEMU_OPT_STRING,
},{
.name = "driftfix",
.type = QEMU_OPT_STRING,
},
{ /* end of list */ }
},
};
static QemuOptsList qemu_sandbox_opts = {
.name = "sandbox",
.implied_opt_name = "enable",
.head = QTAILQ_HEAD_INITIALIZER(qemu_sandbox_opts.head),
.desc = {
{
.name = "enable",
.type = QEMU_OPT_BOOL,
},
{ /* 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_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_STRING,
}, {
.name = "reboot-timeout",
.type = QEMU_OPT_STRING,
}, {
.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_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,
},
{ /* end of list */ }
},
};
static QemuOptsList qemu_semihosting_config_opts = {
.name = "semihosting-config",
.implied_opt_name = "enable",
.head = QTAILQ_HEAD_INITIALIZER(qemu_semihosting_config_opts.head),
.desc = {
{
.name = "enable",
.type = QEMU_OPT_BOOL,
}, {
.name = "target",
.type = QEMU_OPT_STRING,
}, {
.name = "arg",
.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\n"
"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 */ }
},
};
#ifdef CONFIG_LIBISCSI
static QemuOptsList qemu_iscsi_opts = {
.name = "iscsi",
.head = QTAILQ_HEAD_INITIALIZER(qemu_iscsi_opts.head),
.desc = {
{
.name = "user",
.type = QEMU_OPT_STRING,
.help = "username for CHAP authentication to target",
},{
.name = "password",
.type = QEMU_OPT_STRING,
.help = "password for CHAP authentication to target",
},{
.name = "password-secret",
.type = QEMU_OPT_STRING,
.help = "ID of the secret providing password for CHAP "
"authentication to target",
},{
.name = "header-digest",
.type = QEMU_OPT_STRING,
.help = "HeaderDigest setting. "
"{CRC32C|CRC32C-NONE|NONE-CRC32C|NONE}",
},{
.name = "initiator-name",
.type = QEMU_OPT_STRING,
.help = "Initiator iqn name to use when connecting",
},{
.name = "timeout",
.type = QEMU_OPT_NUMBER,
.help = "Request timeout in seconds (default 0 = no timeout)",
},
{ /* end of list */ }
},
};
#endif
/**
* 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_PRELAUNCH;
/* 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_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_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_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_lookup[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);
if (current_run_state == new_state) {
return;
}
if (!runstate_valid_transitions[current_run_state][new_state]) {
error_report("invalid runstate transition: '%s' -> '%s'",
RunState_lookup[current_run_state],
RunState_lookup[new_state]);
abort();
}
trace_runstate_set(new_state);
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;
}
static 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();
}
void vm_start(void)
{
RunState requested;
qemu_vmstop_requested(&requested);
if (runstate_is_running() && requested == RUN_STATE__MAX) {
return;
}
/* Ensure that a STOP/RESUME pair of events is emitted if a
* vmstop request was pending. The BLOCK_IO_ERROR event, for
* example, according to documentation is always followed by
* the STOP event.
*/
if (runstate_is_running()) {
qapi_event_send_stop(&error_abort);
} else {
replay_enable_events();
cpu_enable_ticks();
runstate_set(RUN_STATE_RUNNING);
vm_state_notify(1, RUN_STATE_RUNNING);
resume_all_vcpus();
}
qapi_event_send_resume(&error_abort);
}
/***********************************************************/
/* real time host monotonic timer */
static time_t qemu_time(void)
{
return qemu_clock_get_ms(QEMU_CLOCK_HOST) / 1000;
}
/***********************************************************/
/* host time/date access */
void qemu_get_timedate(struct tm *tm, int offset)
{
time_t ti = qemu_time();
ti += offset;
if (rtc_date_offset == -1) {
if (rtc_utc)
gmtime_r(&ti, tm);
else
localtime_r(&ti, tm);
} else {
ti -= rtc_date_offset;
gmtime_r(&ti, tm);
}
}
int qemu_timedate_diff(struct tm *tm)
{
time_t seconds;
if (rtc_date_offset == -1)
if (rtc_utc)
seconds = mktimegm(tm);
else {
struct tm tmp = *tm;
tmp.tm_isdst = -1; /* use timezone to figure it out */
seconds = mktime(&tmp);
}
else
seconds = mktimegm(tm) + rtc_date_offset;
return seconds - qemu_time();
}
static void configure_rtc_date_offset(const char *startdate, int legacy)
{
time_t rtc_start_date;
struct tm tm;
if (!strcmp(startdate, "now") && legacy) {
rtc_date_offset = -1;
} else {
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_date = mktimegm(&tm);
if (rtc_start_date == -1) {
date_fail:
error_report("invalid date format");
error_printf("valid formats: "
"'2006-06-17T16:01:21' or '2006-06-17'\n");
exit(1);
}
rtc_date_offset = qemu_time() - rtc_start_date;
}
}
static void configure_rtc(QemuOpts *opts)
{
const char *value;
value = qemu_opt_get(opts, "base");
if (value) {
if (!strcmp(value, "utc")) {
rtc_utc = 1;
} else if (!strcmp(value, "localtime")) {
Error *blocker = NULL;
rtc_utc = 0;
error_setg(&blocker, QERR_REPLAY_NOT_SUPPORTED,
"-rtc base=localtime");
replay_add_blocker(blocker);
} else {
configure_rtc_date_offset(value, 0);
}
}
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")) {
static GlobalProperty slew_lost_ticks = {
.driver = "mc146818rtc",
.property = "lost_tick_policy",
.value = "slew",
};
qdev_prop_register_global(&slew_lost_ticks);
} else if (!strcmp(value, "none")) {
/* discard is default */
} else {
error_report("invalid option value '%s'", value);
exit(1);
}
}
}
/***********************************************************/
/* Bluetooth support */
static int nb_hcis;
static int cur_hci;
static struct HCIInfo *hci_table[MAX_NICS];
struct HCIInfo *qemu_next_hci(void)
{
if (cur_hci == nb_hcis)
return &null_hci;
return hci_table[cur_hci++];
}
static int bt_hci_parse(const char *str)
{
struct HCIInfo *hci;
bdaddr_t bdaddr;
if (nb_hcis >= MAX_NICS) {
error_report("too many bluetooth HCIs (max %i)", MAX_NICS);
return -1;
}
hci = hci_init(str);
if (!hci)
return -1;
bdaddr.b[0] = 0x52;
bdaddr.b[1] = 0x54;
bdaddr.b[2] = 0x00;
bdaddr.b[3] = 0x12;
bdaddr.b[4] = 0x34;
bdaddr.b[5] = 0x56 + nb_hcis;
hci->bdaddr_set(hci, bdaddr.b);
hci_table[nb_hcis++] = hci;
return 0;
}
static void bt_vhci_add(int vlan_id)
{
struct bt_scatternet_s *vlan = qemu_find_bt_vlan(vlan_id);
if (!vlan->slave)
error_report("warning: adding a VHCI to an empty scatternet %i",
vlan_id);
bt_vhci_init(bt_new_hci(vlan));
}
static struct bt_device_s *bt_device_add(const char *opt)
{
struct bt_scatternet_s *vlan;
int vlan_id = 0;
char *endp = strstr(opt, ",vlan=");
int len = (endp ? endp - opt : strlen(opt)) + 1;
char devname[10];
pstrcpy(devname, MIN(sizeof(devname), len), opt);
if (endp) {
vlan_id = strtol(endp + 6, &endp, 0);
if (*endp) {
error_report("unrecognised bluetooth vlan Id");
return 0;
}
}
vlan = qemu_find_bt_vlan(vlan_id);
if (!vlan->slave)
error_report("warning: adding a slave device to an empty scatternet %i",
vlan_id);
if (!strcmp(devname, "keyboard"))
return bt_keyboard_init(vlan);
error_report("unsupported bluetooth device '%s'", devname);
return 0;
}
static int bt_parse(const char *opt)
{
const char *endp, *p;
int vlan;
if (strstart(opt, "hci", &endp)) {
if (!*endp || *endp == ',') {
if (*endp)
if (!strstart(endp, ",vlan=", 0))
opt = endp + 1;
return bt_hci_parse(opt);
}
} else if (strstart(opt, "vhci", &endp)) {
if (!*endp || *endp == ',') {
if (*endp) {
if (strstart(endp, ",vlan=", &p)) {
vlan = strtol(p, (char **) &endp, 0);
if (*endp) {
error_report("bad scatternet '%s'", p);
return 1;
}
} else {
error_report("bad parameter '%s'", endp + 1);
return 1;
}
} else
vlan = 0;
bt_vhci_add(vlan);
return 0;
}
} else if (strstart(opt, "device:", &endp))
return !bt_device_add(endp);
error_report("bad bluetooth parameter '%s'", opt);
return 1;
}
static int parse_sandbox(void *opaque, QemuOpts *opts, Error **errp)
{
/* FIXME: change this to true for 1.3 */
if (qemu_opt_get_bool(opts, "enable", false)) {
#ifdef CONFIG_SECCOMP
if (seccomp_start() < 0) {
error_report("failed to install seccomp syscall filter "
"in the kernel");
return -1;
}
#else
error_report("seccomp support is disabled");
return -1;
#endif
}
return 0;
}
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_report("fd option is required and must be non-negative");
return -1;
}
if (fd <= STDERR_FILENO) {
error_report("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_report("fd is not valid or already in use");
return -1;
}
if (fdset_id < 0) {
error_report("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_report("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) == 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);
if (!dinfo) {
exit(1);
}
dinfo->is_default = true;
}
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 = "cores",
.type = QEMU_OPT_NUMBER,
}, {
.name = "threads",
.type = QEMU_OPT_NUMBER,
}, {
.name = "maxcpus",
.type = QEMU_OPT_NUMBER,
},
{ /*End of list */ }
},
};
static void smp_parse(QemuOpts *opts)
{
if (opts) {
unsigned cpus = qemu_opt_get_number(opts, "cpus", 0);
unsigned sockets = qemu_opt_get_number(opts, "sockets", 0);
unsigned cores = qemu_opt_get_number(opts, "cores", 0);
unsigned threads = qemu_opt_get_number(opts, "threads", 0);
/* compute missing values, prefer sockets over cores over threads */
if (cpus == 0 || sockets == 0) {
sockets = sockets > 0 ? sockets : 1;
cores = cores > 0 ? cores : 1;
threads = threads > 0 ? threads : 1;
if (cpus == 0) {
cpus = cores * threads * sockets;
}
} else if (cores == 0) {
threads = threads > 0 ? threads : 1;
cores = cpus / (sockets * threads);
cores = cores > 0 ? cores : 1;
} else if (threads == 0) {
threads = cpus / (cores * sockets);
threads = threads > 0 ? threads : 1;
} else if (sockets * cores * threads < cpus) {
error_report("cpu topology: "
"sockets (%u) * cores (%u) * threads (%u) < "
"smp_cpus (%u)",
sockets, cores, threads, cpus);
exit(1);
}
max_cpus = qemu_opt_get_number(opts, "maxcpus", cpus);
if (max_cpus < cpus) {
error_report("maxcpus must be equal to or greater than smp");
exit(1);
}
if (sockets * cores * threads > max_cpus) {
error_report("cpu topology: "
"sockets (%u) * cores (%u) * threads (%u) > "
"maxcpus (%u)",
sockets, cores, threads, max_cpus);
exit(1);
}
smp_cpus = cpus;
smp_cores = cores;
smp_threads = threads;
}
if (smp_cpus > 1) {
Error *blocker = NULL;
error_setg(&blocker, QERR_REPLAY_NOT_SUPPORTED, "smp");
replay_add_blocker(blocker);
}
}
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)
{
enable_timestamp_msg = qemu_opt_get_bool(opts, "timestamp", true);
}
/***********************************************************/
/* Semihosting */
typedef struct SemihostingConfig {
bool enabled;
SemihostingTarget target;
const char **argv;
int argc;
const char *cmdline; /* concatenated argv */
} SemihostingConfig;
static SemihostingConfig semihosting;
bool semihosting_enabled(void)
{
return semihosting.enabled;
}
SemihostingTarget semihosting_get_target(void)
{
return semihosting.target;
}
const char *semihosting_get_arg(int i)
{
if (i >= semihosting.argc) {
return NULL;
}
return semihosting.argv[i];
}
int semihosting_get_argc(void)
{
return semihosting.argc;
}
const char *semihosting_get_cmdline(void)
{
if (semihosting.cmdline == NULL && semihosting.argc > 0) {
semihosting.cmdline = g_strjoinv(" ", (gchar **)semihosting.argv);
}
return semihosting.cmdline;
}
static int add_semihosting_arg(void *opaque,
const char *name, const char *val,
Error **errp)
{
SemihostingConfig *s = opaque;
if (strcmp(name, "arg") == 0) {
s->argc++;
/* one extra element as g_strjoinv() expects NULL-terminated array */
s->argv = g_realloc(s->argv, (s->argc + 1) * sizeof(void *));
s->argv[s->argc - 1] = val;
s->argv[s->argc] = NULL;
}
return 0;
}
/* Use strings passed via -kernel/-append to initialize semihosting.argv[] */
static inline void semihosting_arg_fallback(const char *file, const char *cmd)
{
char *cmd_token;
/* argv[0] */
add_semihosting_arg(&semihosting, "arg", file, NULL);
/* split -append and initialize argv[1..n] */
cmd_token = strtok(g_strdup(cmd), " ");
while (cmd_token) {
add_semihosting_arg(&semihosting, "arg", cmd_token, NULL);
cmd_token = strtok(NULL, " ");
}
}
/* Now we still need this for compatibility with XEN. */
bool has_igd_gfx_passthru;
static void igd_gfx_passthru(void)
{
has_igd_gfx_passthru = current_machine->igd_gfx_passthru;
}
/***********************************************************/
/* USB devices */
static int usb_device_add(const char *devname)
{
USBDevice *dev = NULL;
#ifndef CONFIG_LINUX
const char *p;
#endif
if (!machine_usb(current_machine)) {
return -1;
}
/* drivers with .usbdevice_name entry in USBDeviceInfo */
dev = usbdevice_create(devname);
if (dev)
goto done;
/* the other ones */
#ifndef CONFIG_LINUX
/* only the linux version is qdev-ified, usb-bsd still needs this */
if (strstart(devname, "host:", &p)) {
dev = usb_host_device_open(usb_bus_find(-1), p);
}
#endif
if (!dev)
return -1;
done:
return 0;
}
static int usb_device_del(const char *devname)
{
int bus_num, addr;
const char *p;
if (strstart(devname, "host:", &p)) {
return -1;
}
if (!machine_usb(current_machine)) {
return -1;
}
p = strchr(devname, '.');
if (!p)
return -1;
bus_num = strtoul(devname, NULL, 0);
addr = strtoul(p + 1, NULL, 0);
return usb_device_delete_addr(bus_num, addr);
}
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;
}
void hmp_usb_add(Monitor *mon, const QDict *qdict)
{
const char *devname = qdict_get_str(qdict, "devname");
if (usb_device_add(devname) < 0) {
error_report("could not add USB device '%s'", devname);
}
}
void hmp_usb_del(Monitor *mon, const QDict *qdict)
{
const char *devname = qdict_get_str(qdict, "devname");
if (usb_device_del(devname) < 0) {
error_report("could not delete USB device '%s'", devname);
}
}
/***********************************************************/
/* machine registration */
MachineState *current_machine;
static MachineClass *find_machine(const char *name)
{
GSList *el, *machines = object_class_get_list(TYPE_MACHINE, false);
MachineClass *mc = NULL;
for (el = machines; el; el = el->next) {
MachineClass *temp = el->data;
if (!strcmp(temp->name, name)) {
mc = temp;
break;
}
if (temp->alias &&
!strcmp(temp->alias, name)) {
mc = temp;
break;
}
}
g_slist_free(machines);
return mc;
}
MachineClass *find_default_machine(void)
{
GSList *el, *machines = object_class_get_list(TYPE_MACHINE, false);
MachineClass *mc = NULL;
for (el = machines; el; el = el->next) {
MachineClass *temp = el->data;
if (temp->is_default) {
mc = temp;
break;
}
}
g_slist_free(machines);
return mc;
}
MachineInfoList *qmp_query_machines(Error **errp)
{
GSList *el, *machines = object_class_get_list(TYPE_MACHINE, false);
MachineInfoList *mach_list = NULL;
for (el = machines; el; el = el->next) {
MachineClass *mc = el->data;
MachineInfoList *entry;
MachineInfo *info;
info = g_malloc0(sizeof(*info));
if (mc->is_default) {
info->has_is_default = true;
info->is_default = true;
}
if (mc->alias) {
info->has_alias = true;
info->alias = g_strdup(mc->alias);
}
info->name = g_strdup(mc->name);
info->cpu_max = !mc->max_cpus ? 1 : mc->max_cpus;
info->hotpluggable_cpus = !!mc->query_hotpluggable_cpus;
entry = g_malloc0(sizeof(*entry));
entry->value = info;
entry->next = mach_list;
mach_list = entry;
}
g_slist_free(machines);
return mach_list;
}
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;
}
error_printf("%s.%s=%s", MACHINE_GET_CLASS(machine)->name,
prop->name, prop->type);
if (prop->description) {
error_printf(" (%s)\n", prop->description);
} else {
error_printf("\n");
}
}
return 1;
}
/***********************************************************/
/* main execution loop */
struct vm_change_state_entry {
VMChangeStateHandler *cb;
void *opaque;
QLIST_ENTRY (vm_change_state_entry) entries;
};
static QLIST_HEAD(vm_change_state_head, vm_change_state_entry) vm_change_state_head;
VMChangeStateEntry *qemu_add_vm_change_state_handler(VMChangeStateHandler *cb,
void *opaque)
{
VMChangeStateEntry *e;
e = g_malloc0(sizeof (*e));
e->cb = cb;
e->opaque = opaque;
QLIST_INSERT_HEAD(&vm_change_state_head, e, entries);
return e;
}
void qemu_del_vm_change_state_handler(VMChangeStateEntry *e)
{
QLIST_REMOVE (e, entries);
g_free (e);
}
void vm_state_notify(int running, RunState state)
{
VMChangeStateEntry *e, *next;
trace_vm_state_notify(running, state);
QLIST_FOREACH_SAFE(e, &vm_change_state_head, entries, next) {
e->cb(e->opaque, running, state);
}
}
static int reset_requested;
static int shutdown_requested, shutdown_signal = -1;
static pid_t shutdown_pid;
static int powerdown_requested;
static int debug_requested;
static int suspend_requested;
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 uint32_t wakeup_reason_mask = ~(1 << QEMU_WAKEUP_REASON_NONE);
int qemu_shutdown_requested_get(void)
{
return shutdown_requested;
}
int qemu_reset_requested_get(void)
{
return reset_requested;
}
static int qemu_shutdown_requested(void)
{
return atomic_xchg(&shutdown_requested, 0);
}
static void qemu_kill_report(void)
{
if (!qtest_driver() && shutdown_signal != -1) {
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 = -1;
}
}
static int qemu_reset_requested(void)
{
int r = reset_requested;
if (r && replay_checkpoint(CHECKPOINT_RESET_REQUESTED)) {
reset_requested = 0;
return r;
}
return false;
}
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_system_reset(bool report)
{
MachineClass *mc;
mc = current_machine ? MACHINE_GET_CLASS(current_machine) : NULL;
cpu_synchronize_all_states();
if (mc && mc->reset) {
mc->reset();
} else {
qemu_devices_reset();
}
if (report) {
qapi_event_send_reset(&error_abort);
}
cpu_synchronize_all_post_reset();
}
void qemu_system_guest_panicked(void)
{
if (current_cpu) {
current_cpu->crash_occurred = true;
}
qapi_event_send_guest_panicked(GUEST_PANIC_ACTION_PAUSE, &error_abort);
vm_stop(RUN_STATE_GUEST_PANICKED);
if (!no_shutdown) {
qapi_event_send_guest_panicked(GUEST_PANIC_ACTION_POWEROFF,
&error_abort);
qemu_system_shutdown_request();
}
}
void qemu_system_reset_request(void)
{
if (no_reboot) {
shutdown_requested = 1;
} else {
reset_requested = 1;
}
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(&error_abort);
}
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)
{
trace_system_wakeup_request(reason);
if (!runstate_check(RUN_STATE_SUSPENDED)) {
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_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 = 1;
qemu_notify_event();
}
void qemu_system_shutdown_request(void)
{
trace_qemu_system_shutdown_request();
replay_shutdown_request();
shutdown_requested = 1;
qemu_notify_event();
}
static void qemu_system_powerdown(void)
{
qapi_event_send_powerdown(&error_abort);
notifier_list_notify(&powerdown_notifiers, NULL);
}
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_system_debug_request(void)
{
debug_requested = 1;
qemu_notify_event();
}
static bool main_loop_should_exit(void)
{
RunState r;
if (qemu_debug_requested()) {
vm_stop(RUN_STATE_DEBUG);
}
if (qemu_suspend_requested()) {
qemu_system_suspend();
}
if (qemu_shutdown_requested()) {
qemu_kill_report();
qapi_event_send_shutdown(&error_abort);
if (no_shutdown) {
vm_stop(RUN_STATE_SHUTDOWN);
} else {
return true;
}
}
if (qemu_reset_requested()) {
pause_all_vcpus();
qemu_system_reset(VMRESET_REPORT);
resume_all_vcpus();
if (!runstate_check(RUN_STATE_RUNNING) &&
!runstate_check(RUN_STATE_INMIGRATE)) {
runstate_set(RUN_STATE_PRELAUNCH);
}
}
if (qemu_wakeup_requested()) {
pause_all_vcpus();
qemu_system_reset(VMRESET_SILENT);
notifier_list_notify(&wakeup_notifiers, &wakeup_reason);
wakeup_reason = QEMU_WAKEUP_REASON_NONE;
resume_all_vcpus();
qapi_event_send_wakeup(&error_abort);
}
if (qemu_powerdown_requested()) {
qemu_system_powerdown();
}
if (qemu_vmstop_requested(&r)) {
vm_stop(r);
}
return false;
}
static void main_loop(void)
{
bool nonblocking;
int last_io = 0;
#ifdef CONFIG_PROFILER
int64_t ti;
#endif
do {
nonblocking = tcg_enabled() && last_io > 0;
#ifdef CONFIG_PROFILER
ti = profile_getclock();
#endif
last_io = main_loop_wait(nonblocking);
#ifdef CONFIG_PROFILER
dev_time += profile_getclock() - ti;
#endif
} while (!main_loop_should_exit());
}
static void version(void)
{
printf("QEMU emulator version " QEMU_VERSION QEMU_PKGVERSION "\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");
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 VGAInterfaceInfo vga_interfaces[VGA_TYPE_MAX] = {
[VGA_NONE] = {
.opt_name = "none",
},
[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",
},
};
static bool vga_interface_available(VGAInterfaceType t)
{
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 void select_vgahw(const char *p)
{
const char *opts;
int t;
assert(vga_interface_type == VGA_NONE);
for (t = 0; t < VGA_TYPE_MAX; t++) {
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;
}
}
typedef enum DisplayType {
DT_DEFAULT,
DT_CURSES,
DT_SDL,
DT_COCOA,
DT_GTK,
DT_NONE,
} DisplayType;
static DisplayType select_display(const char *p)
{
const char *opts;
DisplayType display = DT_DEFAULT;
if (strstart(p, "sdl", &opts)) {
#ifdef CONFIG_SDL
display = DT_SDL;
while (*opts) {
const char *nextopt;
if (strstart(opts, ",frame=", &nextopt)) {
opts = nextopt;
if (strstart(opts, "on", &nextopt)) {
no_frame = 0;
} else if (strstart(opts, "off", &nextopt)) {
no_frame = 1;
} else {
goto invalid_sdl_args;
}
} else 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;
if (strstart(opts, "on", &nextopt)) {
no_quit = 0;
} else if (strstart(opts, "off", &nextopt)) {
no_quit = 1;
} else {
goto invalid_sdl_args;
}
} else if (strstart(opts, ",gl=", &nextopt)) {
opts = nextopt;
if (strstart(opts, "on", &nextopt)) {
request_opengl = 1;
} else if (strstart(opts, "off", &nextopt)) {
request_opengl = 0;
} else {
goto invalid_sdl_args;
}
} else {
invalid_sdl_args:
error_report("invalid SDL option string");
exit(1);
}
opts = nextopt;
}
#else
error_report("SDL support is disabled");
exit(1);
#endif
} else if (strstart(p, "vnc", &opts)) {
if (*opts == '=') {
vnc_parse(opts + 1, &error_fatal);
} else {
error_report("VNC requires a display argument vnc=<display>");
exit(1);
}
} else if (strstart(p, "curses", &opts)) {
#ifdef CONFIG_CURSES
display = DT_CURSES;
#else
error_report("curses support is disabled");
exit(1);
#endif
} else if (strstart(p, "gtk", &opts)) {
#ifdef CONFIG_GTK
display = DT_GTK;
while (*opts) {
const char *nextopt;
if (strstart(opts, ",grab_on_hover=", &nextopt)) {
opts = nextopt;
if (strstart(opts, "on", &nextopt)) {
grab_on_hover = true;
} else if (strstart(opts, "off", &nextopt)) {
grab_on_hover = false;
} else {
goto invalid_gtk_args;
}
} else if (strstart(opts, ",gl=", &nextopt)) {
opts = nextopt;
if (strstart(opts, "on", &nextopt)) {
request_opengl = 1;
} else if (strstart(opts, "off", &nextopt)) {
request_opengl = 0;
} else {
goto invalid_gtk_args;
}
} else {
invalid_gtk_args:
error_report("invalid GTK option string");
exit(1);
}
opts = nextopt;
}
#else
error_report("GTK support is disabled");
exit(1);
#endif
} else if (strstart(p, "none", &opts)) {
display = DT_NONE;
} else {
error_report("unknown display type");
exit(1);
}
return display;
}
static int balloon_parse(const char *arg)
{
QemuOpts *opts;
if (strcmp(arg, "none") == 0) {
return 0;
}
if (!strncmp(arg, "virtio", 6)) {
if (arg[6] == ',') {
/* have params -> parse them */
opts = qemu_opts_parse_noisily(qemu_find_opts("device"), arg + 7,
false);
if (!opts)
return -1;
} else {
/* create empty opts */
opts = qemu_opts_create(qemu_find_opts("device"), NULL, 0,
&error_abort);
}
qemu_opt_set(opts, "driver", "virtio-balloon", &error_abort);
return 0;
}
return -1;
}
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 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_report("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_report("invalid argument(s)");
return -1;
}
if (nonempty_str(file) && nonempty_str(str)) {
error_report("file and string are mutually exclusive");
return -1;
}
if (strlen(name) > FW_CFG_MAX_FILE_PATH - 1) {
error_report("name too long (max. %d char)", FW_CFG_MAX_FILE_PATH - 1);
return -1;
}
if (strncmp(name, "opt/", 4) != 0) {
error_report("warning: externally provided fw_cfg item names "
"should be prefixed with \"opt/\"");
}
if (nonempty_str(str)) {
size = strlen(str); /* NUL terminator NOT included in fw_cfg blob */
buf = g_memdup(str, size);
} else {
if (!g_file_get_contents(file, &buf, &size, NULL)) {
error_report("can't load %s", file);
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)
{
Error *err = NULL;
DeviceState *dev;
dev = qdev_device_add(opts, &err);
if (!dev) {
error_report_err(err);
return -1;
}
object_unref(OBJECT(dev));
return 0;
}
static int chardev_init_func(void *opaque, QemuOpts *opts, Error **errp)
{
Error *local_err = NULL;
qemu_chr_new_from_opts(opts, &local_err);
if (local_err) {
error_report_err(local_err);
return -1;
}
return 0;
}
#ifdef CONFIG_VIRTFS
static int fsdev_init_func(void *opaque, QemuOpts *opts, Error **errp)
{
return qemu_fsdev_add(opts);
}
#endif
static int mon_init_func(void *opaque, QemuOpts *opts, Error **errp)
{
CharDriverState *chr;
const char *chardev;
const char *mode;
int flags;
mode = qemu_opt_get(opts, "mode");
if (mode == NULL) {
mode = "readline";
}
if (strcmp(mode, "readline") == 0) {
flags = MONITOR_USE_READLINE;
} else if (strcmp(mode, "control") == 0) {
flags = MONITOR_USE_CONTROL;
} else {
error_report("unknown monitor mode \"%s\"", mode);
exit(1);
}
if (qemu_opt_get_bool(opts, "pretty", 0))
flags |= MONITOR_USE_PRETTY;
if (qemu_opt_get_bool(opts, "default", 0)) {
error_report("option 'default' does nothing and is deprecated");
}
chardev = qemu_opt_get(opts, "chardev");
chr = qemu_chr_find(chardev);
if (chr == NULL) {
error_report("chardev \"%s\" not found", chardev);
exit(1);
}
monitor_init(chr, flags);
return 0;
}
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);
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);
qemu_opt_set_bool(opts, "pretty", pretty, &error_abort);
monitor_device_index++;
}
struct device_config {
enum {
DEV_USB, /* -usbdevice */
DEV_BT, /* -bt */
DEV_SERIAL, /* -serial */
DEV_PARALLEL, /* -parallel */
DEV_VIRTCON, /* -virtioconsole */
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)
{
static int index = 0;
char label[32];
if (strcmp(devname, "none") == 0)
return 0;
if (index == MAX_SERIAL_PORTS) {
error_report("too many serial ports");
exit(1);
}
snprintf(label, sizeof(label), "serial%d", index);
serial_hds[index] = qemu_chr_new(label, devname);
if (!serial_hds[index]) {
error_report("could not connect serial device"
" to character backend '%s'", devname);
return -1;
}
index++;
return 0;
}
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(label, devname);
if (!parallel_hds[index]) {
error_report("could not connect parallel device"
" to character backend '%s'", devname);
return -1;
}
index++;
return 0;
}
static int virtcon_parse(const char *devname)
{
QemuOptsList *device = qemu_find_opts("device");
static int index = 0;
char label[32];
QemuOpts *bus_opts, *dev_opts;
if (strcmp(devname, "none") == 0)
return 0;
if (index == MAX_VIRTIO_CONSOLES) {
error_report("too many virtio consoles");
exit(1);
}
bus_opts = qemu_opts_create(device, NULL, 0, &error_abort);
qemu_opt_set(bus_opts, "driver", "virtio-serial", &error_abort);
dev_opts = qemu_opts_create(device, NULL, 0, &error_abort);
qemu_opt_set(dev_opts, "driver", "virtconsole", &error_abort);
snprintf(label, sizeof(label), "virtcon%d", index);
virtcon_hds[index] = qemu_chr_new(label, devname);
if (!virtcon_hds[index]) {
error_report("could not connect virtio console"
" to character backend '%s'", devname);
return -1;
}
qemu_opt_set(dev_opts, "chardev", label, &error_abort);
index++;
return 0;
}
static int sclp_parse(const char *devname)
{
QemuOptsList *device = qemu_find_opts("device");
static int index = 0;
char label[32];
QemuOpts *dev_opts;
if (strcmp(devname, "none") == 0) {
return 0;
}
if (index == MAX_SCLP_CONSOLES) {
error_report("too many sclp consoles");
exit(1);
}
assert(arch_type == QEMU_ARCH_S390X);
dev_opts = qemu_opts_create(device, NULL, 0, NULL);
qemu_opt_set(dev_opts, "driver", "sclpconsole", &error_abort);
snprintf(label, sizeof(label), "sclpcon%d", index);
sclp_hds[index] = qemu_chr_new(label, devname);
if (!sclp_hds[index]) {
error_report("could not connect sclp console"
" to character backend '%s'", devname);
return -1;
}
qemu_opt_set(dev_opts, "chardev", label, &error_abort);
index++;
return 0;
}
static int debugcon_parse(const char *devname)
{
QemuOpts *opts;
if (!qemu_chr_new("debugcon", 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)
{
MachineClass *mc = NULL;
GSList *el, *machines = object_class_get_list(TYPE_MACHINE, false);
if (name) {
mc = find_machine(name);
}
if (mc) {
g_slist_free(machines);
return mc;
}
if (name && !is_help_option(name)) {
error_report("unsupported machine type");
error_printf("Use -machine help to list supported machines\n");
} else {
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\n", mc->name, mc->desc,
mc->is_default ? " (default)" : "");
}
}
g_slist_free(machines);
exit(!name || !is_help_option(name));
}
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 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)
{
notifier_list_notify(&machine_init_done_notifiers, NULL);
machine_init_done = true;
}
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)
{
MachineClass *machine_class = find_default_machine();
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);
}
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);
return machine_class;
}
static int machine_set_property(void *opaque,
const char *name, const char *value,
Error **errp)
{
Object *obj = OBJECT(opaque);
Error *local_err = NULL;
char *p, *qom_name;
if (strcmp(name, "type") == 0) {
return 0;
}
qom_name = g_strdup(name);
for (p = qom_name; *p; p++) {
if (*p == '_') {
*p = '-';
}
}
object_property_parse(obj, value, qom_name, &local_err);
g_free(qom_name);
if (local_err) {
error_report_err(local_err);
return -1;
}
return 0;
}
/*
* 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)
{
if (g_str_equal(type, "rng-egd")) {
return false;
}
/*
* return false for concrete netfilters since
* they depend on netdevs already existing
*/
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)
{
return !object_create_initial(type);
}
static void set_memory_options(uint64_t *ram_slots, ram_addr_t *maxram_size,
MachineClass *mc)
{
uint64_t sz;
const char *mem_str;
const char *maxmem_str, *slots_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 <<= 20;
if ((sz >> 20) != 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;
maxmem_str = qemu_opt_get(opts, "maxmem");
slots_str = qemu_opt_get(opts, "slots");
if (maxmem_str && slots_str) {
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 (sz > ram_size) {
if (!slots) {
error_report("invalid value of -m option: maxmem was "
"specified, but no hotplug slots were specified");
exit(EXIT_FAILURE);
}
} else if (slots) {
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 ((!maxmem_str && slots_str) ||
(maxmem_str && !slots_str)) {
error_report("invalid -m option value: missing "
"'%s' option", slots_str ? "maxmem" : "slots");
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");
g->user_provided = true;
g->errp = &error_fatal;
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;
}
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;
int cyls, heads, secs, translation;
QemuOpts *hda_opts = NULL, *opts, *machine_opts, *icount_opts = NULL;
QemuOptsList *olist;
int optind;
const char *optarg;
const char *loadvm = NULL;
MachineClass *machine_class;
const char *cpu_model;
const char *vga_model = NULL;
const char *qtest_chrdev = NULL;
const char *qtest_log = NULL;
const char *pid_file = NULL;
const char *incoming = NULL;
bool defconfig = true;
bool userconfig = true;
bool nographic = false;
DisplayType display_type = DT_DEFAULT;
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;
module_call_init(MODULE_INIT_TRACE);
qemu_init_cpu_list();
qemu_init_cpu_loop();
qemu_mutex_lock_iothread();
atexit(qemu_run_exit_notifiers);
error_set_progname(argv[0]);
qemu_init_exec_dir(argv[0]);
module_call_init(MODULE_INIT_QOM);
module_call_init(MODULE_INIT_QAPI);
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_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_add_opts(&qemu_option_rom_opts);
qemu_add_opts(&qemu_machine_opts);
qemu_add_opts(&qemu_mem_opts);
qemu_add_opts(&qemu_smp_opts);
qemu_add_opts(&qemu_boot_opts);
qemu_add_opts(&qemu_sandbox_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_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);
#ifdef CONFIG_LIBISCSI
qemu_add_opts(&qemu_iscsi_opts);
#endif
module_call_init(MODULE_INIT_OPTS);
runstate_init();
if (qcrypto_init(&err) < 0) {
error_reportf_err(err, "cannot initialize crypto: ");
exit(1);
}
rtc_clock = QEMU_CLOCK_HOST;
QLIST_INIT (&vm_change_state_head);
os_setup_early_signal_handling();
cpu_model = NULL;
snapshot = 0;
cyls = heads = secs = 0;
translation = BIOS_ATA_TRANSLATION_AUTO;
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_nodefconfig:
defconfig = false;
break;
case QEMU_OPTION_nouserconfig:
userconfig = false;
break;
}
}
}
if (defconfig && 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] != '-') {
hda_opts = 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_no_kvm_irqchip: {
olist = qemu_find_opts("machine");
qemu_opts_parse_noisily(olist, "kernel_irqchip=off", false);
break;
}
case QEMU_OPTION_cpu:
/* hw initialization will check this */
cpu_model = optarg;
break;
case QEMU_OPTION_hda:
{
char buf[256];
if (cyls == 0)
snprintf(buf, sizeof(buf), "%s", HD_OPTS);
else
snprintf(buf, sizeof(buf),
"%s,cyls=%d,heads=%d,secs=%d%s",
HD_OPTS , cyls, heads, secs,
translation == BIOS_ATA_TRANSLATION_LBA ?
",trans=lba" :
translation == BIOS_ATA_TRANSLATION_NONE ?
",trans=none" : "");
drive_add(IF_DEFAULT, 0, optarg, buf);
break;
}
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_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:
snapshot = 1;
break;
case QEMU_OPTION_hdachs:
{
const char *p;
p = optarg;
cyls = strtol(p, (char **)&p, 0);
if (cyls < 1 || cyls > 16383)
goto chs_fail;
if (*p != ',')
goto chs_fail;
p++;
heads = strtol(p, (char **)&p, 0);
if (heads < 1 || heads > 16)
goto chs_fail;
if (*p != ',')
goto chs_fail;
p++;
secs = strtol(p, (char **)&p, 0);
if (secs < 1 || secs > 63)
goto chs_fail;
if (*p == ',') {
p++;
if (!strcmp(p, "large")) {
translation = BIOS_ATA_TRANSLATION_LARGE;
} else if (!strcmp(p, "rechs")) {
translation = BIOS_ATA_TRANSLATION_RECHS;
} else if (!strcmp(p, "none")) {
translation = BIOS_ATA_TRANSLATION_NONE;
} else if (!strcmp(p, "lba")) {
translation = BIOS_ATA_TRANSLATION_LBA;
} else if (!strcmp(p, "auto")) {
translation = BIOS_ATA_TRANSLATION_AUTO;
} else {
goto chs_fail;
}
} else if (*p != '\0') {
chs_fail:
error_report("invalid physical CHS format");
exit(1);
}
if (hda_opts != NULL) {
qemu_opt_set_number(hda_opts, "cyls", cyls,
&error_abort);
qemu_opt_set_number(hda_opts, "heads", heads,
&error_abort);
qemu_opt_set_number(hda_opts, "secs", secs,
&error_abort);
if (translation == BIOS_ATA_TRANSLATION_LARGE) {
qemu_opt_set(hda_opts, "trans", "large",
&error_abort);
} else if (translation == BIOS_ATA_TRANSLATION_RECHS) {
qemu_opt_set(hda_opts, "trans", "rechs",
&error_abort);
} else if (translation == BIOS_ATA_TRANSLATION_LBA) {
qemu_opt_set(hda_opts, "trans", "lba",
&error_abort);
} else if (translation == BIOS_ATA_TRANSLATION_NONE) {
qemu_opt_set(hda_opts, "trans", "none",
&error_abort);
}
}
}
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:
display_type = select_display(optarg);
break;
case QEMU_OPTION_nographic:
olist = qemu_find_opts("machine");
qemu_opts_parse_noisily(olist, "graphics=off", false);
nographic = true;
display_type = DT_NONE;
break;
case QEMU_OPTION_curses:
#ifdef CONFIG_CURSES
display_type = DT_CURSES;
#else
error_report("curses 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_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
#ifdef CONFIG_SLIRP
case QEMU_OPTION_tftp:
error_report("The -tftp option is deprecated. "
"Please use '-netdev user,tftp=...' instead.");
legacy_tftp_prefix = optarg;
break;
case QEMU_OPTION_bootp:
error_report("The -bootp option is deprecated. "
"Please use '-netdev user,bootfile=...' instead.");
legacy_bootp_filename = optarg;
break;
case QEMU_OPTION_redir:
error_report("The -redir option is deprecated. "
"Please use '-netdev user,hostfwd=...' instead.");
if (net_slirp_redir(optarg) < 0)
exit(1);
break;
#endif
case QEMU_OPTION_bt:
add_device_config(DEV_BT, optarg);
break;
case QEMU_OPTION_audio_help:
AUD_help ();
exit (0);
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_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 if (data_dir_idx < ARRAY_SIZE(data_dir)) {
data_dir[data_dir_idx++] = 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_localtime:
rtc_utc = 0;
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 != 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;
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_opt_get(opts, "mount_tag"),
1, NULL);
if (!fsdev) {
error_report("duplicate 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);
qemu_opt_set(fsdev, "path", qemu_opt_get(opts, "path"),
&error_abort);
qemu_opt_set(fsdev, "security_model",
qemu_opt_get(opts, "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);
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_opt_get(opts, "mount_tag"), &error_abort);
qemu_opt_set(device, "mount_tag",
qemu_opt_get(opts, "mount_tag"), &error_abort);
break;
}
case QEMU_OPTION_virtfs_synth: {
QemuOpts *fsdev;
QemuOpts *device;
fsdev = qemu_opts_create(qemu_find_opts("fsdev"), "v_synth",
1, NULL);
if (!fsdev) {
error_report("duplicate option: %s", "virtfs_synth");
exit(1);
}
qemu_opt_set(fsdev, "fsdriver", "synth", &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", "v_synth", &error_abort);
qemu_opt_set(device, "mount_tag", "v_synth", &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_virtiocon:
add_device_config(DEV_VIRTCON, optarg);
default_virtcon = 0;
if (strncmp(optarg, "mon:", 4) == 0) {
default_monitor = 0;
}
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:
full_screen = 1;
break;
case QEMU_OPTION_no_frame:
no_frame = 1;
break;
case QEMU_OPTION_alt_grab:
alt_grab = 1;
break;
case QEMU_OPTION_ctrl_grab:
ctrl_grab = 1;
break;
case QEMU_OPTION_no_quit:
no_quit = 1;
break;
case QEMU_OPTION_sdl:
#ifdef CONFIG_SDL
display_type = DT_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_rtc_td_hack: {
static GlobalProperty slew_lost_ticks = {
.driver = "mc146818rtc",
.property = "lost_tick_policy",
.value = "slew",
};
qdev_prop_register_global(&slew_lost_ticks);
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_enable_kvm:
olist = qemu_find_opts("machine");
qemu_opts_parse_noisily(olist, "accel=kvm", false);
break;
case QEMU_OPTION_enable_hax:
olist = qemu_find_opts("machine");
qemu_opts_parse_noisily(olist, "accel=hax", 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_no_kvm_pit: {
error_report("warning: ignoring deprecated option");
break;
}
case QEMU_OPTION_no_kvm_pit_reinjection: {
static GlobalProperty kvm_pit_lost_tick_policy = {
.driver = "kvm-pit",
.property = "lost_tick_policy",
.value = "discard",
};
error_report("warning: deprecated, replaced by "
"-global kvm-pit.lost_tick_policy=discard");
qdev_prop_register_global(&kvm_pit_lost_tick_policy);
break;
}
case QEMU_OPTION_usb:
olist = qemu_find_opts("machine");
qemu_opts_parse_noisily(olist, "usb=on", false);
break;
case QEMU_OPTION_usbdevice:
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_balloon:
if (balloon_parse(optarg) < 0) {
error_report("unknown -balloon argument %s", optarg);
exit(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:
cursor_hide = 0;
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:
semihosting.enabled = true;
semihosting.target = SEMIHOSTING_TARGET_AUTO;
break;
case QEMU_OPTION_semihosting_config:
semihosting.enabled = true;
opts = qemu_opts_parse_noisily(qemu_find_opts("semihosting-config"),
optarg, false);
if (opts != NULL) {
semihosting.enabled = qemu_opt_get_bool(opts, "enable",
true);
const char *target = qemu_opt_get(opts, "target");
if (target != NULL) {
if (strcmp("native", target) == 0) {
semihosting.target = SEMIHOSTING_TARGET_NATIVE;
} else if (strcmp("gdb", target) == 0) {
semihosting.target = SEMIHOSTING_TARGET_GDB;
} else if (strcmp("auto", target) == 0) {
semihosting.target = SEMIHOSTING_TARGET_AUTO;
} else {
error_report("unsupported semihosting-config %s",
optarg);
exit(1);
}
} else {
semihosting.target = SEMIHOSTING_TARGET_AUTO;
}
/* Set semihosting argument count and vector */
qemu_opt_foreach(opts, add_semihosting_arg,
&semihosting, NULL);
} else {
error_report("unsupported semihosting-config %s", optarg);
exit(1);
}
break;
case QEMU_OPTION_tdf:
error_report("warning: ignoring deprecated option");
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_clock:
/* Clock options no longer exist. Keep this option for
* backward compatibility.
*/
break;
case QEMU_OPTION_startdate:
configure_rtc_date_offset(optarg, 1);
break;
case QEMU_OPTION_rtc:
opts = qemu_opts_parse_noisily(qemu_find_opts("rtc"), optarg,
false);
if (!opts) {
exit(1);
}
configure_rtc(opts);
break;
case QEMU_OPTION_tb_size:
tcg_tb_size = strtol(optarg, NULL, 0);
if (tcg_tb_size < 0) {
tcg_tb_size = 0;
}
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_create:
if (!(xen_available())) {
error_report("Option not supported for this target");
exit(1);
}
xen_mode = XEN_CREATE;
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_trace:
g_free(trace_file);
trace_file = trace_opt_parse(optarg);
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:
opts = qemu_opts_parse_noisily(qemu_find_opts("sandbox"),
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:
opts = qemu_opts_parse_noisily(qemu_find_opts("realtime"),
optarg, false);
if (!opts) {
exit(1);
}
enable_mlock = qemu_opt_get_bool(opts, "mlock", true);
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;
default:
os_parse_cmd_args(popt->index, optarg);
}
}
}
/*
* Clear error location left behind by the loop.
* Best done right after the loop. Do not insert code here!
*/
loc_set_none();
replay_configure(icount_opts);
machine_class = select_machine();
set_memory_options(&ram_slots, &maxram_size, machine_class);
os_daemonize();
if (pid_file && qemu_create_pidfile(pid_file) != 0) {
error_report("could not acquire pid file: %s", strerror(errno));
exit(1);
}
if (qemu_init_main_loop(&main_loop_err)) {
error_report_err(main_loop_err);
exit(1);
}
if (qemu_opts_foreach(qemu_find_opts("sandbox"),
parse_sandbox, NULL, NULL)) {
exit(1);
}
if (qemu_opts_foreach(qemu_find_opts("name"),
parse_name, NULL, NULL)) {
exit(1);
}
#ifndef _WIN32
if (qemu_opts_foreach(qemu_find_opts("add-fd"),
parse_add_fd, NULL, NULL)) {
exit(1);
}
if (qemu_opts_foreach(qemu_find_opts("add-fd"),
cleanup_add_fd, NULL, NULL)) {
exit(1);
}
#endif
current_machine = MACHINE(object_new(object_class_get_name(
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);
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_model && is_help_option(cpu_model)) {
list_cpus(stdout, &fprintf, cpu_model);
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.
*/
if (log_file) {
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);
}
/* If no data_dir is specified then try to find it relative to the
executable path. */
if (data_dir_idx < ARRAY_SIZE(data_dir)) {
data_dir[data_dir_idx] = os_find_datadir();
if (data_dir[data_dir_idx] != NULL) {
data_dir_idx++;
}
}
/* If all else fails use the install path specified when building. */
if (data_dir_idx < ARRAY_SIZE(data_dir)) {
data_dir[data_dir_idx++] = 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);
}
smp_parse(qemu_opts_find(qemu_find_opts("smp-opts"), NULL));
machine_class->max_cpus = machine_class->max_cpus ?: 1; /* Default to UP */
if (max_cpus > machine_class->max_cpus) {
error_report("Number of SMP CPUs requested (%d) exceeds max CPUs "
"supported by machine '%s' (%d)", 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);
}
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->use_virtcon) {
default_virtcon = 0;
}
if (!has_defaults || !machine_class->use_sclp) {
default_sclp = 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()) {
/* 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 || default_virtcon)) {
error_report("-nographic cannot be used with -daemonize");
exit(1);
}
#ifdef CONFIG_CURSES
if (display_type == DT_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_virtcon && default_monitor) {
add_device_config(DEV_VIRTCON, "mon:stdio");
} else if (default_sclp && default_monitor) {
add_device_config(DEV_SCLP, "mon:stdio");
} else {
if (default_serial)
add_device_config(DEV_SERIAL, "stdio");
if (default_virtcon)
add_device_config(DEV_VIRTCON, "stdio");
if (default_sclp) {
add_device_config(DEV_SCLP, "stdio");
}
if (default_monitor)
monitor_parse("stdio", "readline", false);
}
} else {
if (default_serial)
add_device_config(DEV_SERIAL, "vc:80Cx24C");
if (default_parallel)
add_device_config(DEV_PARALLEL, "vc:80Cx24C");
if (default_monitor)
monitor_parse("vc:80Cx24C", "readline", false);
if (default_virtcon)
add_device_config(DEV_VIRTCON, "vc:80Cx24C");
if (default_sclp) {
add_device_config(DEV_SCLP, "vc:80Cx24C");
}
}
#if defined(CONFIG_VNC)
if (!QTAILQ_EMPTY(&(qemu_find_opts("vnc")->head))) {
display_remote++;
}
#endif
if (display_type == DT_DEFAULT && !display_remote) {
#if defined(CONFIG_GTK)
display_type = DT_GTK;
#elif defined(CONFIG_SDL)
display_type = DT_SDL;
#elif defined(CONFIG_COCOA)
display_type = DT_COCOA;
#elif defined(CONFIG_VNC)
vnc_parse("localhost:0,to=99,id=default", &error_abort);
#else
display_type = DT_NONE;
#endif
}
if ((no_frame || alt_grab || ctrl_grab) && display_type != DT_SDL) {
error_report("-no-frame, -alt-grab and -ctrl-grab are only valid "
"for SDL, ignoring option");
}
if (no_quit && (display_type != DT_GTK && display_type != DT_SDL)) {
error_report("-no-quit is only valid for GTK and SDL, "
"ignoring option");
}
if (display_type == DT_GTK) {
early_gtk_display_init(request_opengl);
}
if (display_type == DT_SDL) {
sdl_display_early_init(request_opengl);
}
if (request_opengl == 1 && 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();
if (qemu_opts_foreach(qemu_find_opts("object"),
user_creatable_add_opts_foreach,
object_create_initial, NULL)) {
exit(1);
}
if (qemu_opts_foreach(qemu_find_opts("chardev"),
chardev_init_func, NULL, NULL)) {
exit(1);
}
#ifdef CONFIG_VIRTFS
if (qemu_opts_foreach(qemu_find_opts("fsdev"),
fsdev_init_func, NULL, NULL)) {
exit(1);
}
#endif
if (qemu_opts_foreach(qemu_find_opts("device"),
device_help_func, NULL, NULL)) {
exit(0);
}
machine_opts = qemu_get_machine_opts();
if (qemu_opt_foreach(machine_opts, machine_set_property, current_machine,
NULL)) {
object_unref(OBJECT(current_machine));
exit(1);
}
configure_accelerator(current_machine);
if (qtest_chrdev) {
qtest_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);
}
os_set_line_buffering();
/* spice needs the timers to be initialized by this point */
qemu_spice_init();
cpu_ticks_init();
if (icount_opts) {
if (!tcg_enabled()) {
error_report("-icount is not allowed with hardware virtualization");
exit(1);
}
configure_icount(icount_opts, &error_abort);
qemu_opts_del(icount_opts);
}
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
}
colo_info_init();
if (net_init_clients() < 0) {
exit(1);
}
if (qemu_opts_foreach(qemu_find_opts("object"),
user_creatable_add_opts_foreach,
object_create_delayed, NULL)) {
exit(1);
}
#ifdef CONFIG_TPM
if (tpm_init() < 0) {
exit(1);
}
#endif
/* init the bluetooth world */
if (foreach_device_config(DEV_BT, bt_parse))
exit(1);
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();
/* 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 */
if (snapshot || replay_mode != REPLAY_MODE_NONE) {
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, NULL)) {
exit(1);
}
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);
parse_numa_opts(machine_class);
if (qemu_opts_foreach(qemu_find_opts("mon"),
mon_init_func, NULL, NULL)) {
exit(1);
}
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_VIRTCON, virtcon_parse) < 0)
exit(1);
if (foreach_device_config(DEV_SCLP, sclp_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) {
if (machine_class->default_display) {
vga_model = machine_class->default_display;
} else if (vga_interface_available(VGA_CIRRUS)) {
vga_model = "cirrus";
} else if (vga_interface_available(VGA_STD)) {
vga_model = "std";
}
}
if (vga_model) {
select_vgahw(vga_model);
}
if (watchdog) {
i = select_watchdog(watchdog);
if (i > 0)
exit (i == 1 ? 1 : 0);
}
machine_register_compat_props(current_machine);
qemu_opts_foreach(qemu_find_opts("global"),
global_init_func, NULL, NULL);
/* 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->ram_size = ram_size;
current_machine->maxram_size = maxram_size;
current_machine->ram_slots = ram_slots;
current_machine->boot_order = boot_order;
current_machine->cpu_model = cpu_model;
machine_class->init(current_machine);
realtime_init();
audio_init();
cpu_synchronize_all_post_init();
if (hax_enabled()) {
hax_sync_vcpus();
}
if (qemu_opts_foreach(qemu_find_opts("fw_cfg"),
parse_fw_cfg, fw_cfg_find(), NULL) != 0) {
exit(1);
}
/* init USB devices */
if (machine_usb(current_machine)) {
if (foreach_device_config(DEV_USB, usb_parse) < 0)
exit(1);
}
/* Check if IGD GFX passthrough. */
igd_gfx_passthru();
/* init generic devices */
rom_set_order_override(FW_CFG_ORDER_OVERRIDE_DEVICE);
if (qemu_opts_foreach(qemu_find_opts("device"),
device_init_func, NULL, NULL)) {
exit(1);
}
numa_post_machine_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) {
net_check_clients();
}
if (boot_once) {
qemu_boot_set(boot_once, &error_fatal);
qemu_register_reset(restore_boot_order, g_strdup(boot_order));
}
ds = init_displaystate();
/* init local displays */
switch (display_type) {
case DT_CURSES:
curses_display_init(ds, full_screen);
break;
case DT_SDL:
sdl_display_init(ds, full_screen, no_frame);
break;
case DT_COCOA:
cocoa_display_init(ds, full_screen);
break;
case DT_GTK:
gtk_display_init(ds, full_screen, grab_on_hover);
break;
default:
break;
}
/* 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, NULL);
#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 */
qemu_register_reset(qbus_reset_all_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(VMRESET_SILENT);
register_global_state();
if (loadvm) {
if (load_vmstate(loadvm) < 0) {
autostart = 0;
}
}
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();
}
os_setup_post();
main_loop();
replay_disable_events();
iothread_stop_all();
bdrv_close_all();
pause_all_vcpus();
res_free();
/* vhost-user must be cleaned up before chardevs. */
net_cleanup();
audio_cleanup();
monitor_cleanup();
qemu_chr_cleanup();
return 0;
}
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