tests: vmstate static checker: remove a field
[qemu/cris-port.git] / vl.c
blob32887559bea87bd62a1e87df60d802f03d26a323
1 /*
2 * QEMU System Emulator
4 * Copyright (c) 2003-2008 Fabrice Bellard
6 * Permission is hereby granted, free of charge, to any person obtaining a copy
7 * of this software and associated documentation files (the "Software"), to deal
8 * in the Software without restriction, including without limitation the rights
9 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
10 * copies of the Software, and to permit persons to whom the Software is
11 * furnished to do so, subject to the following conditions:
13 * The above copyright notice and this permission notice shall be included in
14 * all copies or substantial portions of the Software.
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
19 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
21 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
22 * THE SOFTWARE.
24 #include <unistd.h>
25 #include <fcntl.h>
26 #include <signal.h>
27 #include <time.h>
28 #include <errno.h>
29 #include <sys/time.h>
31 #include "config-host.h"
33 #ifdef CONFIG_SECCOMP
34 #include "sysemu/seccomp.h"
35 #endif
37 #if defined(CONFIG_VDE)
38 #include <libvdeplug.h>
39 #endif
41 #ifdef CONFIG_SDL
42 #if defined(__APPLE__) || defined(main)
43 #include <SDL.h>
44 int qemu_main(int argc, char **argv, char **envp);
45 int main(int argc, char **argv)
47 return qemu_main(argc, argv, NULL);
49 #undef main
50 #define main qemu_main
51 #endif
52 #endif /* CONFIG_SDL */
54 #ifdef CONFIG_COCOA
55 #undef main
56 #define main qemu_main
57 #endif /* CONFIG_COCOA */
59 #include <glib.h>
61 #include "qemu/sockets.h"
62 #include "hw/hw.h"
63 #include "hw/boards.h"
64 #include "hw/usb.h"
65 #include "hw/pcmcia.h"
66 #include "hw/i386/pc.h"
67 #include "hw/isa/isa.h"
68 #include "hw/bt.h"
69 #include "sysemu/watchdog.h"
70 #include "hw/i386/smbios.h"
71 #include "hw/xen/xen.h"
72 #include "hw/qdev.h"
73 #include "hw/loader.h"
74 #include "monitor/qdev.h"
75 #include "sysemu/bt.h"
76 #include "net/net.h"
77 #include "net/slirp.h"
78 #include "monitor/monitor.h"
79 #include "ui/console.h"
80 #include "sysemu/sysemu.h"
81 #include "exec/gdbstub.h"
82 #include "qemu/timer.h"
83 #include "sysemu/char.h"
84 #include "qemu/bitmap.h"
85 #include "qemu/cache-utils.h"
86 #include "sysemu/blockdev.h"
87 #include "hw/block/block.h"
88 #include "migration/block.h"
89 #include "sysemu/tpm.h"
90 #include "sysemu/dma.h"
91 #include "audio/audio.h"
92 #include "migration/migration.h"
93 #include "sysemu/kvm.h"
94 #include "qapi/qmp/qjson.h"
95 #include "qemu/option.h"
96 #include "qemu/config-file.h"
97 #include "qemu-options.h"
98 #include "qmp-commands.h"
99 #include "qemu/main-loop.h"
100 #ifdef CONFIG_VIRTFS
101 #include "fsdev/qemu-fsdev.h"
102 #endif
103 #include "sysemu/qtest.h"
105 #include "disas/disas.h"
108 #include "slirp/libslirp.h"
110 #include "trace.h"
111 #include "trace/control.h"
112 #include "qemu/queue.h"
113 #include "sysemu/cpus.h"
114 #include "sysemu/arch_init.h"
115 #include "qemu/osdep.h"
117 #include "ui/qemu-spice.h"
118 #include "qapi/string-input-visitor.h"
119 #include "qapi/opts-visitor.h"
121 #define DEFAULT_RAM_SIZE 128
123 #define MAX_VIRTIO_CONSOLES 1
124 #define MAX_SCLP_CONSOLES 1
126 static const char *data_dir[16];
127 static int data_dir_idx;
128 const char *bios_name = NULL;
129 enum vga_retrace_method vga_retrace_method = VGA_RETRACE_DUMB;
130 DisplayType display_type = DT_DEFAULT;
131 static int display_remote;
132 const char* keyboard_layout = NULL;
133 ram_addr_t ram_size;
134 const char *mem_path = NULL;
135 int mem_prealloc = 0; /* force preallocation of physical target memory */
136 int nb_nics;
137 NICInfo nd_table[MAX_NICS];
138 int autostart;
139 static int rtc_utc = 1;
140 static int rtc_date_offset = -1; /* -1 means no change */
141 QEMUClockType rtc_clock;
142 int vga_interface_type = VGA_NONE;
143 static int full_screen = 0;
144 static int no_frame = 0;
145 int no_quit = 0;
146 #ifdef CONFIG_GTK
147 static bool grab_on_hover;
148 #endif
149 CharDriverState *serial_hds[MAX_SERIAL_PORTS];
150 CharDriverState *parallel_hds[MAX_PARALLEL_PORTS];
151 CharDriverState *virtcon_hds[MAX_VIRTIO_CONSOLES];
152 CharDriverState *sclp_hds[MAX_SCLP_CONSOLES];
153 int win2k_install_hack = 0;
154 int singlestep = 0;
155 int smp_cpus = 1;
156 int max_cpus = 0;
157 int smp_cores = 1;
158 int smp_threads = 1;
159 #ifdef CONFIG_VNC
160 const char *vnc_display;
161 #endif
162 int acpi_enabled = 1;
163 int no_hpet = 0;
164 int fd_bootchk = 1;
165 static int no_reboot;
166 int no_shutdown = 0;
167 int cursor_hide = 1;
168 int graphic_rotate = 0;
169 const char *watchdog;
170 QEMUOptionRom option_rom[MAX_OPTION_ROMS];
171 int nb_option_roms;
172 int semihosting_enabled = 0;
173 int old_param = 0;
174 const char *qemu_name;
175 int alt_grab = 0;
176 int ctrl_grab = 0;
177 unsigned int nb_prom_envs = 0;
178 const char *prom_envs[MAX_PROM_ENVS];
179 int boot_menu;
180 static bool boot_strict;
181 uint8_t *boot_splash_filedata;
182 size_t boot_splash_filedata_size;
183 uint8_t qemu_extra_params_fw[2];
185 typedef struct FWBootEntry FWBootEntry;
187 struct FWBootEntry {
188 QTAILQ_ENTRY(FWBootEntry) link;
189 int32_t bootindex;
190 DeviceState *dev;
191 char *suffix;
194 static QTAILQ_HEAD(, FWBootEntry) fw_boot_order =
195 QTAILQ_HEAD_INITIALIZER(fw_boot_order);
197 int nb_numa_nodes;
198 NodeInfo numa_info[MAX_NODES];
200 uint8_t qemu_uuid[16];
201 bool qemu_uuid_set;
203 static QEMUBootSetHandler *boot_set_handler;
204 static void *boot_set_opaque;
206 static NotifierList exit_notifiers =
207 NOTIFIER_LIST_INITIALIZER(exit_notifiers);
209 static NotifierList machine_init_done_notifiers =
210 NOTIFIER_LIST_INITIALIZER(machine_init_done_notifiers);
212 static bool tcg_allowed = true;
213 bool xen_allowed;
214 uint32_t xen_domid;
215 enum xen_mode xen_mode = XEN_EMULATE;
216 static int tcg_tb_size;
218 static int has_defaults = 1;
219 static int default_serial = 1;
220 static int default_parallel = 1;
221 static int default_virtcon = 1;
222 static int default_sclp = 1;
223 static int default_monitor = 1;
224 static int default_floppy = 1;
225 static int default_cdrom = 1;
226 static int default_sdcard = 1;
227 static int default_vga = 1;
229 static struct {
230 const char *driver;
231 int *flag;
232 } default_list[] = {
233 { .driver = "isa-serial", .flag = &default_serial },
234 { .driver = "isa-parallel", .flag = &default_parallel },
235 { .driver = "isa-fdc", .flag = &default_floppy },
236 { .driver = "ide-cd", .flag = &default_cdrom },
237 { .driver = "ide-hd", .flag = &default_cdrom },
238 { .driver = "ide-drive", .flag = &default_cdrom },
239 { .driver = "scsi-cd", .flag = &default_cdrom },
240 { .driver = "virtio-serial-pci", .flag = &default_virtcon },
241 { .driver = "virtio-serial-s390", .flag = &default_virtcon },
242 { .driver = "virtio-serial", .flag = &default_virtcon },
243 { .driver = "VGA", .flag = &default_vga },
244 { .driver = "isa-vga", .flag = &default_vga },
245 { .driver = "cirrus-vga", .flag = &default_vga },
246 { .driver = "isa-cirrus-vga", .flag = &default_vga },
247 { .driver = "vmware-svga", .flag = &default_vga },
248 { .driver = "qxl-vga", .flag = &default_vga },
251 static QemuOptsList qemu_rtc_opts = {
252 .name = "rtc",
253 .head = QTAILQ_HEAD_INITIALIZER(qemu_rtc_opts.head),
254 .desc = {
256 .name = "base",
257 .type = QEMU_OPT_STRING,
259 .name = "clock",
260 .type = QEMU_OPT_STRING,
262 .name = "driftfix",
263 .type = QEMU_OPT_STRING,
265 { /* end of list */ }
269 static QemuOptsList qemu_sandbox_opts = {
270 .name = "sandbox",
271 .implied_opt_name = "enable",
272 .head = QTAILQ_HEAD_INITIALIZER(qemu_sandbox_opts.head),
273 .desc = {
275 .name = "enable",
276 .type = QEMU_OPT_BOOL,
278 { /* end of list */ }
282 static QemuOptsList qemu_trace_opts = {
283 .name = "trace",
284 .implied_opt_name = "trace",
285 .head = QTAILQ_HEAD_INITIALIZER(qemu_trace_opts.head),
286 .desc = {
288 .name = "events",
289 .type = QEMU_OPT_STRING,
291 .name = "file",
292 .type = QEMU_OPT_STRING,
294 { /* end of list */ }
298 static QemuOptsList qemu_option_rom_opts = {
299 .name = "option-rom",
300 .implied_opt_name = "romfile",
301 .head = QTAILQ_HEAD_INITIALIZER(qemu_option_rom_opts.head),
302 .desc = {
304 .name = "bootindex",
305 .type = QEMU_OPT_NUMBER,
306 }, {
307 .name = "romfile",
308 .type = QEMU_OPT_STRING,
310 { /* end of list */ }
314 static QemuOptsList qemu_machine_opts = {
315 .name = "machine",
316 .implied_opt_name = "type",
317 .merge_lists = true,
318 .head = QTAILQ_HEAD_INITIALIZER(qemu_machine_opts.head),
319 .desc = {
321 .name = "type",
322 .type = QEMU_OPT_STRING,
323 .help = "emulated machine"
324 }, {
325 .name = "accel",
326 .type = QEMU_OPT_STRING,
327 .help = "accelerator list",
328 }, {
329 .name = "kernel_irqchip",
330 .type = QEMU_OPT_BOOL,
331 .help = "use KVM in-kernel irqchip",
332 }, {
333 .name = "kvm_shadow_mem",
334 .type = QEMU_OPT_SIZE,
335 .help = "KVM shadow MMU size",
336 }, {
337 .name = "kernel",
338 .type = QEMU_OPT_STRING,
339 .help = "Linux kernel image file",
340 }, {
341 .name = "initrd",
342 .type = QEMU_OPT_STRING,
343 .help = "Linux initial ramdisk file",
344 }, {
345 .name = "append",
346 .type = QEMU_OPT_STRING,
347 .help = "Linux kernel command line",
348 }, {
349 .name = "dtb",
350 .type = QEMU_OPT_STRING,
351 .help = "Linux kernel device tree file",
352 }, {
353 .name = "dumpdtb",
354 .type = QEMU_OPT_STRING,
355 .help = "Dump current dtb to a file and quit",
356 }, {
357 .name = "phandle_start",
358 .type = QEMU_OPT_NUMBER,
359 .help = "The first phandle ID we may generate dynamically",
360 }, {
361 .name = "dt_compatible",
362 .type = QEMU_OPT_STRING,
363 .help = "Overrides the \"compatible\" property of the dt root node",
364 }, {
365 .name = "dump-guest-core",
366 .type = QEMU_OPT_BOOL,
367 .help = "Include guest memory in a core dump",
368 }, {
369 .name = "mem-merge",
370 .type = QEMU_OPT_BOOL,
371 .help = "enable/disable memory merge support",
373 .name = "usb",
374 .type = QEMU_OPT_BOOL,
375 .help = "Set on/off to enable/disable usb",
377 .name = "firmware",
378 .type = QEMU_OPT_STRING,
379 .help = "firmware image",
381 .name = "kvm-type",
382 .type = QEMU_OPT_STRING,
383 .help = "Specifies the KVM virtualization mode (HV, PR)",
385 { /* End of list */ }
389 static QemuOptsList qemu_boot_opts = {
390 .name = "boot-opts",
391 .implied_opt_name = "order",
392 .merge_lists = true,
393 .head = QTAILQ_HEAD_INITIALIZER(qemu_boot_opts.head),
394 .desc = {
396 .name = "order",
397 .type = QEMU_OPT_STRING,
398 }, {
399 .name = "once",
400 .type = QEMU_OPT_STRING,
401 }, {
402 .name = "menu",
403 .type = QEMU_OPT_BOOL,
404 }, {
405 .name = "splash",
406 .type = QEMU_OPT_STRING,
407 }, {
408 .name = "splash-time",
409 .type = QEMU_OPT_STRING,
410 }, {
411 .name = "reboot-timeout",
412 .type = QEMU_OPT_STRING,
413 }, {
414 .name = "strict",
415 .type = QEMU_OPT_BOOL,
417 { /*End of list */ }
421 static QemuOptsList qemu_add_fd_opts = {
422 .name = "add-fd",
423 .head = QTAILQ_HEAD_INITIALIZER(qemu_add_fd_opts.head),
424 .desc = {
426 .name = "fd",
427 .type = QEMU_OPT_NUMBER,
428 .help = "file descriptor of which a duplicate is added to fd set",
430 .name = "set",
431 .type = QEMU_OPT_NUMBER,
432 .help = "ID of the fd set to add fd to",
434 .name = "opaque",
435 .type = QEMU_OPT_STRING,
436 .help = "free-form string used to describe fd",
438 { /* end of list */ }
442 static QemuOptsList qemu_object_opts = {
443 .name = "object",
444 .implied_opt_name = "qom-type",
445 .head = QTAILQ_HEAD_INITIALIZER(qemu_object_opts.head),
446 .desc = {
451 static QemuOptsList qemu_tpmdev_opts = {
452 .name = "tpmdev",
453 .implied_opt_name = "type",
454 .head = QTAILQ_HEAD_INITIALIZER(qemu_tpmdev_opts.head),
455 .desc = {
456 /* options are defined in the TPM backends */
457 { /* end of list */ }
461 static QemuOptsList qemu_realtime_opts = {
462 .name = "realtime",
463 .head = QTAILQ_HEAD_INITIALIZER(qemu_realtime_opts.head),
464 .desc = {
466 .name = "mlock",
467 .type = QEMU_OPT_BOOL,
469 { /* end of list */ }
473 static QemuOptsList qemu_msg_opts = {
474 .name = "msg",
475 .head = QTAILQ_HEAD_INITIALIZER(qemu_msg_opts.head),
476 .desc = {
478 .name = "timestamp",
479 .type = QEMU_OPT_BOOL,
481 { /* end of list */ }
485 static QemuOptsList qemu_name_opts = {
486 .name = "name",
487 .implied_opt_name = "guest",
488 .merge_lists = true,
489 .head = QTAILQ_HEAD_INITIALIZER(qemu_name_opts.head),
490 .desc = {
492 .name = "guest",
493 .type = QEMU_OPT_STRING,
494 .help = "Sets the name of the guest.\n"
495 "This name will be displayed in the SDL window caption.\n"
496 "The name will also be used for the VNC server",
497 }, {
498 .name = "process",
499 .type = QEMU_OPT_STRING,
500 .help = "Sets the name of the QEMU process, as shown in top etc",
501 }, {
502 .name = "debug-threads",
503 .type = QEMU_OPT_BOOL,
504 .help = "When enabled, name the individual threads; defaults off.\n"
505 "NOTE: The thread names are for debugging and not a\n"
506 "stable API.",
508 { /* End of list */ }
512 static QemuOptsList qemu_mem_opts = {
513 .name = "memory",
514 .implied_opt_name = "size",
515 .head = QTAILQ_HEAD_INITIALIZER(qemu_mem_opts.head),
516 .merge_lists = true,
517 .desc = {
519 .name = "size",
520 .type = QEMU_OPT_SIZE,
523 .name = "slots",
524 .type = QEMU_OPT_NUMBER,
527 .name = "maxmem",
528 .type = QEMU_OPT_SIZE,
530 { /* end of list */ }
535 * Get machine options
537 * Returns: machine options (never null).
539 QemuOpts *qemu_get_machine_opts(void)
541 return qemu_find_opts_singleton("machine");
544 const char *qemu_get_vm_name(void)
546 return qemu_name;
549 static void res_free(void)
551 if (boot_splash_filedata != NULL) {
552 g_free(boot_splash_filedata);
553 boot_splash_filedata = NULL;
557 static int default_driver_check(QemuOpts *opts, void *opaque)
559 const char *driver = qemu_opt_get(opts, "driver");
560 int i;
562 if (!driver)
563 return 0;
564 for (i = 0; i < ARRAY_SIZE(default_list); i++) {
565 if (strcmp(default_list[i].driver, driver) != 0)
566 continue;
567 *(default_list[i].flag) = 0;
569 return 0;
572 /***********************************************************/
573 /* QEMU state */
575 static RunState current_run_state = RUN_STATE_PRELAUNCH;
577 /* We use RUN_STATE_MAX but any invalid value will do */
578 static RunState vmstop_requested = RUN_STATE_MAX;
579 static QemuMutex vmstop_lock;
581 typedef struct {
582 RunState from;
583 RunState to;
584 } RunStateTransition;
586 static const RunStateTransition runstate_transitions_def[] = {
587 /* from -> to */
588 { RUN_STATE_DEBUG, RUN_STATE_RUNNING },
589 { RUN_STATE_DEBUG, RUN_STATE_FINISH_MIGRATE },
591 { RUN_STATE_INMIGRATE, RUN_STATE_RUNNING },
592 { RUN_STATE_INMIGRATE, RUN_STATE_PAUSED },
594 { RUN_STATE_INTERNAL_ERROR, RUN_STATE_PAUSED },
595 { RUN_STATE_INTERNAL_ERROR, RUN_STATE_FINISH_MIGRATE },
597 { RUN_STATE_IO_ERROR, RUN_STATE_RUNNING },
598 { RUN_STATE_IO_ERROR, RUN_STATE_FINISH_MIGRATE },
600 { RUN_STATE_PAUSED, RUN_STATE_RUNNING },
601 { RUN_STATE_PAUSED, RUN_STATE_FINISH_MIGRATE },
603 { RUN_STATE_POSTMIGRATE, RUN_STATE_RUNNING },
604 { RUN_STATE_POSTMIGRATE, RUN_STATE_FINISH_MIGRATE },
606 { RUN_STATE_PRELAUNCH, RUN_STATE_RUNNING },
607 { RUN_STATE_PRELAUNCH, RUN_STATE_FINISH_MIGRATE },
608 { RUN_STATE_PRELAUNCH, RUN_STATE_INMIGRATE },
610 { RUN_STATE_FINISH_MIGRATE, RUN_STATE_RUNNING },
611 { RUN_STATE_FINISH_MIGRATE, RUN_STATE_POSTMIGRATE },
613 { RUN_STATE_RESTORE_VM, RUN_STATE_RUNNING },
615 { RUN_STATE_RUNNING, RUN_STATE_DEBUG },
616 { RUN_STATE_RUNNING, RUN_STATE_INTERNAL_ERROR },
617 { RUN_STATE_RUNNING, RUN_STATE_IO_ERROR },
618 { RUN_STATE_RUNNING, RUN_STATE_PAUSED },
619 { RUN_STATE_RUNNING, RUN_STATE_FINISH_MIGRATE },
620 { RUN_STATE_RUNNING, RUN_STATE_RESTORE_VM },
621 { RUN_STATE_RUNNING, RUN_STATE_SAVE_VM },
622 { RUN_STATE_RUNNING, RUN_STATE_SHUTDOWN },
623 { RUN_STATE_RUNNING, RUN_STATE_WATCHDOG },
624 { RUN_STATE_RUNNING, RUN_STATE_GUEST_PANICKED },
626 { RUN_STATE_SAVE_VM, RUN_STATE_RUNNING },
628 { RUN_STATE_SHUTDOWN, RUN_STATE_PAUSED },
629 { RUN_STATE_SHUTDOWN, RUN_STATE_FINISH_MIGRATE },
631 { RUN_STATE_DEBUG, RUN_STATE_SUSPENDED },
632 { RUN_STATE_RUNNING, RUN_STATE_SUSPENDED },
633 { RUN_STATE_SUSPENDED, RUN_STATE_RUNNING },
634 { RUN_STATE_SUSPENDED, RUN_STATE_FINISH_MIGRATE },
636 { RUN_STATE_WATCHDOG, RUN_STATE_RUNNING },
637 { RUN_STATE_WATCHDOG, RUN_STATE_FINISH_MIGRATE },
639 { RUN_STATE_GUEST_PANICKED, RUN_STATE_RUNNING },
640 { RUN_STATE_GUEST_PANICKED, RUN_STATE_FINISH_MIGRATE },
642 { RUN_STATE_MAX, RUN_STATE_MAX },
645 static bool runstate_valid_transitions[RUN_STATE_MAX][RUN_STATE_MAX];
647 bool runstate_check(RunState state)
649 return current_run_state == state;
652 static void runstate_init(void)
654 const RunStateTransition *p;
656 memset(&runstate_valid_transitions, 0, sizeof(runstate_valid_transitions));
657 for (p = &runstate_transitions_def[0]; p->from != RUN_STATE_MAX; p++) {
658 runstate_valid_transitions[p->from][p->to] = true;
661 qemu_mutex_init(&vmstop_lock);
664 /* This function will abort() on invalid state transitions */
665 void runstate_set(RunState new_state)
667 assert(new_state < RUN_STATE_MAX);
669 if (!runstate_valid_transitions[current_run_state][new_state]) {
670 fprintf(stderr, "ERROR: invalid runstate transition: '%s' -> '%s'\n",
671 RunState_lookup[current_run_state],
672 RunState_lookup[new_state]);
673 abort();
675 trace_runstate_set(new_state);
676 current_run_state = new_state;
679 int runstate_is_running(void)
681 return runstate_check(RUN_STATE_RUNNING);
684 bool runstate_needs_reset(void)
686 return runstate_check(RUN_STATE_INTERNAL_ERROR) ||
687 runstate_check(RUN_STATE_SHUTDOWN);
690 StatusInfo *qmp_query_status(Error **errp)
692 StatusInfo *info = g_malloc0(sizeof(*info));
694 info->running = runstate_is_running();
695 info->singlestep = singlestep;
696 info->status = current_run_state;
698 return info;
701 static bool qemu_vmstop_requested(RunState *r)
703 qemu_mutex_lock(&vmstop_lock);
704 *r = vmstop_requested;
705 vmstop_requested = RUN_STATE_MAX;
706 qemu_mutex_unlock(&vmstop_lock);
707 return *r < RUN_STATE_MAX;
710 void qemu_system_vmstop_request_prepare(void)
712 qemu_mutex_lock(&vmstop_lock);
715 void qemu_system_vmstop_request(RunState state)
717 vmstop_requested = state;
718 qemu_mutex_unlock(&vmstop_lock);
719 qemu_notify_event();
722 void vm_start(void)
724 RunState requested;
726 qemu_vmstop_requested(&requested);
727 if (runstate_is_running() && requested == RUN_STATE_MAX) {
728 return;
731 /* Ensure that a STOP/RESUME pair of events is emitted if a
732 * vmstop request was pending. The BLOCK_IO_ERROR event, for
733 * example, according to documentation is always followed by
734 * the STOP event.
736 if (runstate_is_running()) {
737 monitor_protocol_event(QEVENT_STOP, NULL);
738 } else {
739 cpu_enable_ticks();
740 runstate_set(RUN_STATE_RUNNING);
741 vm_state_notify(1, RUN_STATE_RUNNING);
742 resume_all_vcpus();
745 monitor_protocol_event(QEVENT_RESUME, NULL);
749 /***********************************************************/
750 /* real time host monotonic timer */
752 /***********************************************************/
753 /* host time/date access */
754 void qemu_get_timedate(struct tm *tm, int offset)
756 time_t ti;
758 time(&ti);
759 ti += offset;
760 if (rtc_date_offset == -1) {
761 if (rtc_utc)
762 gmtime_r(&ti, tm);
763 else
764 localtime_r(&ti, tm);
765 } else {
766 ti -= rtc_date_offset;
767 gmtime_r(&ti, tm);
771 int qemu_timedate_diff(struct tm *tm)
773 time_t seconds;
775 if (rtc_date_offset == -1)
776 if (rtc_utc)
777 seconds = mktimegm(tm);
778 else {
779 struct tm tmp = *tm;
780 tmp.tm_isdst = -1; /* use timezone to figure it out */
781 seconds = mktime(&tmp);
783 else
784 seconds = mktimegm(tm) + rtc_date_offset;
786 return seconds - time(NULL);
789 void rtc_change_mon_event(struct tm *tm)
791 QObject *data;
793 data = qobject_from_jsonf("{ 'offset': %d }", qemu_timedate_diff(tm));
794 monitor_protocol_event(QEVENT_RTC_CHANGE, data);
795 qobject_decref(data);
798 static void configure_rtc_date_offset(const char *startdate, int legacy)
800 time_t rtc_start_date;
801 struct tm tm;
803 if (!strcmp(startdate, "now") && legacy) {
804 rtc_date_offset = -1;
805 } else {
806 if (sscanf(startdate, "%d-%d-%dT%d:%d:%d",
807 &tm.tm_year,
808 &tm.tm_mon,
809 &tm.tm_mday,
810 &tm.tm_hour,
811 &tm.tm_min,
812 &tm.tm_sec) == 6) {
813 /* OK */
814 } else if (sscanf(startdate, "%d-%d-%d",
815 &tm.tm_year,
816 &tm.tm_mon,
817 &tm.tm_mday) == 3) {
818 tm.tm_hour = 0;
819 tm.tm_min = 0;
820 tm.tm_sec = 0;
821 } else {
822 goto date_fail;
824 tm.tm_year -= 1900;
825 tm.tm_mon--;
826 rtc_start_date = mktimegm(&tm);
827 if (rtc_start_date == -1) {
828 date_fail:
829 fprintf(stderr, "Invalid date format. Valid formats are:\n"
830 "'2006-06-17T16:01:21' or '2006-06-17'\n");
831 exit(1);
833 rtc_date_offset = time(NULL) - rtc_start_date;
837 static void configure_rtc(QemuOpts *opts)
839 const char *value;
841 value = qemu_opt_get(opts, "base");
842 if (value) {
843 if (!strcmp(value, "utc")) {
844 rtc_utc = 1;
845 } else if (!strcmp(value, "localtime")) {
846 rtc_utc = 0;
847 } else {
848 configure_rtc_date_offset(value, 0);
851 value = qemu_opt_get(opts, "clock");
852 if (value) {
853 if (!strcmp(value, "host")) {
854 rtc_clock = QEMU_CLOCK_HOST;
855 } else if (!strcmp(value, "rt")) {
856 rtc_clock = QEMU_CLOCK_REALTIME;
857 } else if (!strcmp(value, "vm")) {
858 rtc_clock = QEMU_CLOCK_VIRTUAL;
859 } else {
860 fprintf(stderr, "qemu: invalid option value '%s'\n", value);
861 exit(1);
864 value = qemu_opt_get(opts, "driftfix");
865 if (value) {
866 if (!strcmp(value, "slew")) {
867 static GlobalProperty slew_lost_ticks[] = {
869 .driver = "mc146818rtc",
870 .property = "lost_tick_policy",
871 .value = "slew",
873 { /* end of list */ }
876 qdev_prop_register_global_list(slew_lost_ticks);
877 } else if (!strcmp(value, "none")) {
878 /* discard is default */
879 } else {
880 fprintf(stderr, "qemu: invalid option value '%s'\n", value);
881 exit(1);
886 /***********************************************************/
887 /* Bluetooth support */
888 static int nb_hcis;
889 static int cur_hci;
890 static struct HCIInfo *hci_table[MAX_NICS];
892 struct HCIInfo *qemu_next_hci(void)
894 if (cur_hci == nb_hcis)
895 return &null_hci;
897 return hci_table[cur_hci++];
900 static int bt_hci_parse(const char *str)
902 struct HCIInfo *hci;
903 bdaddr_t bdaddr;
905 if (nb_hcis >= MAX_NICS) {
906 fprintf(stderr, "qemu: Too many bluetooth HCIs (max %i).\n", MAX_NICS);
907 return -1;
910 hci = hci_init(str);
911 if (!hci)
912 return -1;
914 bdaddr.b[0] = 0x52;
915 bdaddr.b[1] = 0x54;
916 bdaddr.b[2] = 0x00;
917 bdaddr.b[3] = 0x12;
918 bdaddr.b[4] = 0x34;
919 bdaddr.b[5] = 0x56 + nb_hcis;
920 hci->bdaddr_set(hci, bdaddr.b);
922 hci_table[nb_hcis++] = hci;
924 return 0;
927 static void bt_vhci_add(int vlan_id)
929 struct bt_scatternet_s *vlan = qemu_find_bt_vlan(vlan_id);
931 if (!vlan->slave)
932 fprintf(stderr, "qemu: warning: adding a VHCI to "
933 "an empty scatternet %i\n", vlan_id);
935 bt_vhci_init(bt_new_hci(vlan));
938 static struct bt_device_s *bt_device_add(const char *opt)
940 struct bt_scatternet_s *vlan;
941 int vlan_id = 0;
942 char *endp = strstr(opt, ",vlan=");
943 int len = (endp ? endp - opt : strlen(opt)) + 1;
944 char devname[10];
946 pstrcpy(devname, MIN(sizeof(devname), len), opt);
948 if (endp) {
949 vlan_id = strtol(endp + 6, &endp, 0);
950 if (*endp) {
951 fprintf(stderr, "qemu: unrecognised bluetooth vlan Id\n");
952 return 0;
956 vlan = qemu_find_bt_vlan(vlan_id);
958 if (!vlan->slave)
959 fprintf(stderr, "qemu: warning: adding a slave device to "
960 "an empty scatternet %i\n", vlan_id);
962 if (!strcmp(devname, "keyboard"))
963 return bt_keyboard_init(vlan);
965 fprintf(stderr, "qemu: unsupported bluetooth device `%s'\n", devname);
966 return 0;
969 static int bt_parse(const char *opt)
971 const char *endp, *p;
972 int vlan;
974 if (strstart(opt, "hci", &endp)) {
975 if (!*endp || *endp == ',') {
976 if (*endp)
977 if (!strstart(endp, ",vlan=", 0))
978 opt = endp + 1;
980 return bt_hci_parse(opt);
982 } else if (strstart(opt, "vhci", &endp)) {
983 if (!*endp || *endp == ',') {
984 if (*endp) {
985 if (strstart(endp, ",vlan=", &p)) {
986 vlan = strtol(p, (char **) &endp, 0);
987 if (*endp) {
988 fprintf(stderr, "qemu: bad scatternet '%s'\n", p);
989 return 1;
991 } else {
992 fprintf(stderr, "qemu: bad parameter '%s'\n", endp + 1);
993 return 1;
995 } else
996 vlan = 0;
998 bt_vhci_add(vlan);
999 return 0;
1001 } else if (strstart(opt, "device:", &endp))
1002 return !bt_device_add(endp);
1004 fprintf(stderr, "qemu: bad bluetooth parameter '%s'\n", opt);
1005 return 1;
1008 static int parse_sandbox(QemuOpts *opts, void *opaque)
1010 /* FIXME: change this to true for 1.3 */
1011 if (qemu_opt_get_bool(opts, "enable", false)) {
1012 #ifdef CONFIG_SECCOMP
1013 if (seccomp_start() < 0) {
1014 qerror_report(ERROR_CLASS_GENERIC_ERROR,
1015 "failed to install seccomp syscall filter in the kernel");
1016 return -1;
1018 #else
1019 qerror_report(ERROR_CLASS_GENERIC_ERROR,
1020 "sandboxing request but seccomp is not compiled into this build");
1021 return -1;
1022 #endif
1025 return 0;
1028 static int parse_name(QemuOpts *opts, void *opaque)
1030 const char *proc_name;
1032 if (qemu_opt_get(opts, "debug-threads")) {
1033 qemu_thread_naming(qemu_opt_get_bool(opts, "debug-threads", false));
1035 qemu_name = qemu_opt_get(opts, "guest");
1037 proc_name = qemu_opt_get(opts, "process");
1038 if (proc_name) {
1039 os_set_proc_name(proc_name);
1042 return 0;
1045 bool usb_enabled(bool default_usb)
1047 return qemu_opt_get_bool(qemu_get_machine_opts(), "usb",
1048 has_defaults && default_usb);
1051 #ifndef _WIN32
1052 static int parse_add_fd(QemuOpts *opts, void *opaque)
1054 int fd, dupfd, flags;
1055 int64_t fdset_id;
1056 const char *fd_opaque = NULL;
1058 fd = qemu_opt_get_number(opts, "fd", -1);
1059 fdset_id = qemu_opt_get_number(opts, "set", -1);
1060 fd_opaque = qemu_opt_get(opts, "opaque");
1062 if (fd < 0) {
1063 qerror_report(ERROR_CLASS_GENERIC_ERROR,
1064 "fd option is required and must be non-negative");
1065 return -1;
1068 if (fd <= STDERR_FILENO) {
1069 qerror_report(ERROR_CLASS_GENERIC_ERROR,
1070 "fd cannot be a standard I/O stream");
1071 return -1;
1075 * All fds inherited across exec() necessarily have FD_CLOEXEC
1076 * clear, while qemu sets FD_CLOEXEC on all other fds used internally.
1078 flags = fcntl(fd, F_GETFD);
1079 if (flags == -1 || (flags & FD_CLOEXEC)) {
1080 qerror_report(ERROR_CLASS_GENERIC_ERROR,
1081 "fd is not valid or already in use");
1082 return -1;
1085 if (fdset_id < 0) {
1086 qerror_report(ERROR_CLASS_GENERIC_ERROR,
1087 "set option is required and must be non-negative");
1088 return -1;
1091 #ifdef F_DUPFD_CLOEXEC
1092 dupfd = fcntl(fd, F_DUPFD_CLOEXEC, 0);
1093 #else
1094 dupfd = dup(fd);
1095 if (dupfd != -1) {
1096 qemu_set_cloexec(dupfd);
1098 #endif
1099 if (dupfd == -1) {
1100 qerror_report(ERROR_CLASS_GENERIC_ERROR,
1101 "Error duplicating fd: %s", strerror(errno));
1102 return -1;
1105 /* add the duplicate fd, and optionally the opaque string, to the fd set */
1106 monitor_fdset_add_fd(dupfd, true, fdset_id, fd_opaque ? true : false,
1107 fd_opaque, NULL);
1109 return 0;
1112 static int cleanup_add_fd(QemuOpts *opts, void *opaque)
1114 int fd;
1116 fd = qemu_opt_get_number(opts, "fd", -1);
1117 close(fd);
1119 return 0;
1121 #endif
1123 /***********************************************************/
1124 /* QEMU Block devices */
1126 #define HD_OPTS "media=disk"
1127 #define CDROM_OPTS "media=cdrom"
1128 #define FD_OPTS ""
1129 #define PFLASH_OPTS ""
1130 #define MTD_OPTS ""
1131 #define SD_OPTS ""
1133 static int drive_init_func(QemuOpts *opts, void *opaque)
1135 BlockInterfaceType *block_default_type = opaque;
1137 return drive_new(opts, *block_default_type) == NULL;
1140 static int drive_enable_snapshot(QemuOpts *opts, void *opaque)
1142 if (NULL == qemu_opt_get(opts, "snapshot")) {
1143 qemu_opt_set(opts, "snapshot", "on");
1145 return 0;
1148 static void default_drive(int enable, int snapshot, BlockInterfaceType type,
1149 int index, const char *optstr)
1151 QemuOpts *opts;
1153 if (!enable || drive_get_by_index(type, index)) {
1154 return;
1157 opts = drive_add(type, index, NULL, optstr);
1158 if (snapshot) {
1159 drive_enable_snapshot(opts, NULL);
1161 if (!drive_new(opts, type)) {
1162 exit(1);
1166 void qemu_register_boot_set(QEMUBootSetHandler *func, void *opaque)
1168 boot_set_handler = func;
1169 boot_set_opaque = opaque;
1172 int qemu_boot_set(const char *boot_order)
1174 if (!boot_set_handler) {
1175 return -EINVAL;
1177 return boot_set_handler(boot_set_opaque, boot_order);
1180 static void validate_bootdevices(const char *devices)
1182 /* We just do some generic consistency checks */
1183 const char *p;
1184 int bitmap = 0;
1186 for (p = devices; *p != '\0'; p++) {
1187 /* Allowed boot devices are:
1188 * a-b: floppy disk drives
1189 * c-f: IDE disk drives
1190 * g-m: machine implementation dependent drives
1191 * n-p: network devices
1192 * It's up to each machine implementation to check if the given boot
1193 * devices match the actual hardware implementation and firmware
1194 * features.
1196 if (*p < 'a' || *p > 'p') {
1197 fprintf(stderr, "Invalid boot device '%c'\n", *p);
1198 exit(1);
1200 if (bitmap & (1 << (*p - 'a'))) {
1201 fprintf(stderr, "Boot device '%c' was given twice\n", *p);
1202 exit(1);
1204 bitmap |= 1 << (*p - 'a');
1208 static void restore_boot_order(void *opaque)
1210 char *normal_boot_order = opaque;
1211 static int first = 1;
1213 /* Restore boot order and remove ourselves after the first boot */
1214 if (first) {
1215 first = 0;
1216 return;
1219 qemu_boot_set(normal_boot_order);
1221 qemu_unregister_reset(restore_boot_order, normal_boot_order);
1222 g_free(normal_boot_order);
1225 void add_boot_device_path(int32_t bootindex, DeviceState *dev,
1226 const char *suffix)
1228 FWBootEntry *node, *i;
1230 if (bootindex < 0) {
1231 return;
1234 assert(dev != NULL || suffix != NULL);
1236 node = g_malloc0(sizeof(FWBootEntry));
1237 node->bootindex = bootindex;
1238 node->suffix = g_strdup(suffix);
1239 node->dev = dev;
1241 QTAILQ_FOREACH(i, &fw_boot_order, link) {
1242 if (i->bootindex == bootindex) {
1243 fprintf(stderr, "Two devices with same boot index %d\n", bootindex);
1244 exit(1);
1245 } else if (i->bootindex < bootindex) {
1246 continue;
1248 QTAILQ_INSERT_BEFORE(i, node, link);
1249 return;
1251 QTAILQ_INSERT_TAIL(&fw_boot_order, node, link);
1254 DeviceState *get_boot_device(uint32_t position)
1256 uint32_t counter = 0;
1257 FWBootEntry *i = NULL;
1258 DeviceState *res = NULL;
1260 if (!QTAILQ_EMPTY(&fw_boot_order)) {
1261 QTAILQ_FOREACH(i, &fw_boot_order, link) {
1262 if (counter == position) {
1263 res = i->dev;
1264 break;
1266 counter++;
1269 return res;
1273 * This function returns null terminated string that consist of new line
1274 * separated device paths.
1276 * memory pointed by "size" is assigned total length of the array in bytes
1279 char *get_boot_devices_list(size_t *size, bool ignore_suffixes)
1281 FWBootEntry *i;
1282 size_t total = 0;
1283 char *list = NULL;
1285 QTAILQ_FOREACH(i, &fw_boot_order, link) {
1286 char *devpath = NULL, *bootpath;
1287 size_t len;
1289 if (i->dev) {
1290 devpath = qdev_get_fw_dev_path(i->dev);
1291 assert(devpath);
1294 if (i->suffix && !ignore_suffixes && devpath) {
1295 size_t bootpathlen = strlen(devpath) + strlen(i->suffix) + 1;
1297 bootpath = g_malloc(bootpathlen);
1298 snprintf(bootpath, bootpathlen, "%s%s", devpath, i->suffix);
1299 g_free(devpath);
1300 } else if (devpath) {
1301 bootpath = devpath;
1302 } else if (!ignore_suffixes) {
1303 assert(i->suffix);
1304 bootpath = g_strdup(i->suffix);
1305 } else {
1306 bootpath = g_strdup("");
1309 if (total) {
1310 list[total-1] = '\n';
1312 len = strlen(bootpath) + 1;
1313 list = g_realloc(list, total + len);
1314 memcpy(&list[total], bootpath, len);
1315 total += len;
1316 g_free(bootpath);
1319 *size = total;
1321 if (boot_strict && *size > 0) {
1322 list[total-1] = '\n';
1323 list = g_realloc(list, total + 5);
1324 memcpy(&list[total], "HALT", 5);
1325 *size = total + 5;
1327 return list;
1330 static QemuOptsList qemu_smp_opts = {
1331 .name = "smp-opts",
1332 .implied_opt_name = "cpus",
1333 .merge_lists = true,
1334 .head = QTAILQ_HEAD_INITIALIZER(qemu_smp_opts.head),
1335 .desc = {
1337 .name = "cpus",
1338 .type = QEMU_OPT_NUMBER,
1339 }, {
1340 .name = "sockets",
1341 .type = QEMU_OPT_NUMBER,
1342 }, {
1343 .name = "cores",
1344 .type = QEMU_OPT_NUMBER,
1345 }, {
1346 .name = "threads",
1347 .type = QEMU_OPT_NUMBER,
1348 }, {
1349 .name = "maxcpus",
1350 .type = QEMU_OPT_NUMBER,
1352 { /*End of list */ }
1356 static void smp_parse(QemuOpts *opts)
1358 if (opts) {
1360 unsigned cpus = qemu_opt_get_number(opts, "cpus", 0);
1361 unsigned sockets = qemu_opt_get_number(opts, "sockets", 0);
1362 unsigned cores = qemu_opt_get_number(opts, "cores", 0);
1363 unsigned threads = qemu_opt_get_number(opts, "threads", 0);
1365 /* compute missing values, prefer sockets over cores over threads */
1366 if (cpus == 0 || sockets == 0) {
1367 sockets = sockets > 0 ? sockets : 1;
1368 cores = cores > 0 ? cores : 1;
1369 threads = threads > 0 ? threads : 1;
1370 if (cpus == 0) {
1371 cpus = cores * threads * sockets;
1373 } else {
1374 if (cores == 0) {
1375 threads = threads > 0 ? threads : 1;
1376 cores = cpus / (sockets * threads);
1377 } else {
1378 threads = cpus / (cores * sockets);
1382 max_cpus = qemu_opt_get_number(opts, "maxcpus", 0);
1384 smp_cpus = cpus;
1385 smp_cores = cores > 0 ? cores : 1;
1386 smp_threads = threads > 0 ? threads : 1;
1390 if (max_cpus == 0) {
1391 max_cpus = smp_cpus;
1394 if (max_cpus > MAX_CPUMASK_BITS) {
1395 fprintf(stderr, "Unsupported number of maxcpus\n");
1396 exit(1);
1398 if (max_cpus < smp_cpus) {
1399 fprintf(stderr, "maxcpus must be equal to or greater than smp\n");
1400 exit(1);
1405 static void configure_realtime(QemuOpts *opts)
1407 bool enable_mlock;
1409 enable_mlock = qemu_opt_get_bool(opts, "mlock", true);
1411 if (enable_mlock) {
1412 if (os_mlock() < 0) {
1413 fprintf(stderr, "qemu: locking memory failed\n");
1414 exit(1);
1420 static void configure_msg(QemuOpts *opts)
1422 enable_timestamp_msg = qemu_opt_get_bool(opts, "timestamp", true);
1425 /***********************************************************/
1426 /* USB devices */
1428 static int usb_device_add(const char *devname)
1430 USBDevice *dev = NULL;
1431 #ifndef CONFIG_LINUX
1432 const char *p;
1433 #endif
1435 if (!usb_enabled(false)) {
1436 return -1;
1439 /* drivers with .usbdevice_name entry in USBDeviceInfo */
1440 dev = usbdevice_create(devname);
1441 if (dev)
1442 goto done;
1444 /* the other ones */
1445 #ifndef CONFIG_LINUX
1446 /* only the linux version is qdev-ified, usb-bsd still needs this */
1447 if (strstart(devname, "host:", &p)) {
1448 dev = usb_host_device_open(usb_bus_find(-1), p);
1450 #endif
1451 if (!dev)
1452 return -1;
1454 done:
1455 return 0;
1458 static int usb_device_del(const char *devname)
1460 int bus_num, addr;
1461 const char *p;
1463 if (strstart(devname, "host:", &p)) {
1464 return -1;
1467 if (!usb_enabled(false)) {
1468 return -1;
1471 p = strchr(devname, '.');
1472 if (!p)
1473 return -1;
1474 bus_num = strtoul(devname, NULL, 0);
1475 addr = strtoul(p + 1, NULL, 0);
1477 return usb_device_delete_addr(bus_num, addr);
1480 static int usb_parse(const char *cmdline)
1482 int r;
1483 r = usb_device_add(cmdline);
1484 if (r < 0) {
1485 fprintf(stderr, "qemu: could not add USB device '%s'\n", cmdline);
1487 return r;
1490 void do_usb_add(Monitor *mon, const QDict *qdict)
1492 const char *devname = qdict_get_str(qdict, "devname");
1493 if (usb_device_add(devname) < 0) {
1494 error_report("could not add USB device '%s'", devname);
1498 void do_usb_del(Monitor *mon, const QDict *qdict)
1500 const char *devname = qdict_get_str(qdict, "devname");
1501 if (usb_device_del(devname) < 0) {
1502 error_report("could not delete USB device '%s'", devname);
1506 /***********************************************************/
1507 /* PCMCIA/Cardbus */
1509 static struct pcmcia_socket_entry_s {
1510 PCMCIASocket *socket;
1511 struct pcmcia_socket_entry_s *next;
1512 } *pcmcia_sockets = 0;
1514 void pcmcia_socket_register(PCMCIASocket *socket)
1516 struct pcmcia_socket_entry_s *entry;
1518 entry = g_malloc(sizeof(struct pcmcia_socket_entry_s));
1519 entry->socket = socket;
1520 entry->next = pcmcia_sockets;
1521 pcmcia_sockets = entry;
1524 void pcmcia_socket_unregister(PCMCIASocket *socket)
1526 struct pcmcia_socket_entry_s *entry, **ptr;
1528 ptr = &pcmcia_sockets;
1529 for (entry = *ptr; entry; ptr = &entry->next, entry = *ptr)
1530 if (entry->socket == socket) {
1531 *ptr = entry->next;
1532 g_free(entry);
1536 void pcmcia_info(Monitor *mon, const QDict *qdict)
1538 struct pcmcia_socket_entry_s *iter;
1540 if (!pcmcia_sockets)
1541 monitor_printf(mon, "No PCMCIA sockets\n");
1543 for (iter = pcmcia_sockets; iter; iter = iter->next)
1544 monitor_printf(mon, "%s: %s\n", iter->socket->slot_string,
1545 iter->socket->attached ? iter->socket->card_string :
1546 "Empty");
1549 /***********************************************************/
1550 /* machine registration */
1552 MachineState *current_machine;
1554 static void machine_class_init(ObjectClass *oc, void *data)
1556 MachineClass *mc = MACHINE_CLASS(oc);
1557 QEMUMachine *qm = data;
1559 mc->name = qm->name;
1560 mc->alias = qm->alias;
1561 mc->desc = qm->desc;
1562 mc->init = qm->init;
1563 mc->reset = qm->reset;
1564 mc->hot_add_cpu = qm->hot_add_cpu;
1565 mc->kvm_type = qm->kvm_type;
1566 mc->block_default_type = qm->block_default_type;
1567 mc->max_cpus = qm->max_cpus;
1568 mc->no_serial = qm->no_serial;
1569 mc->no_parallel = qm->no_parallel;
1570 mc->use_virtcon = qm->use_virtcon;
1571 mc->use_sclp = qm->use_sclp;
1572 mc->no_floppy = qm->no_floppy;
1573 mc->no_cdrom = qm->no_cdrom;
1574 mc->no_sdcard = qm->no_sdcard;
1575 mc->is_default = qm->is_default;
1576 mc->default_machine_opts = qm->default_machine_opts;
1577 mc->default_boot_order = qm->default_boot_order;
1578 mc->compat_props = qm->compat_props;
1579 mc->hw_version = qm->hw_version;
1582 int qemu_register_machine(QEMUMachine *m)
1584 char *name = g_strconcat(m->name, TYPE_MACHINE_SUFFIX, NULL);
1585 TypeInfo ti = {
1586 .name = name,
1587 .parent = TYPE_MACHINE,
1588 .class_init = machine_class_init,
1589 .class_data = (void *)m,
1592 type_register(&ti);
1593 g_free(name);
1595 return 0;
1598 static MachineClass *find_machine(const char *name)
1600 GSList *el, *machines = object_class_get_list(TYPE_MACHINE, false);
1601 MachineClass *mc = NULL;
1603 for (el = machines; el; el = el->next) {
1604 MachineClass *temp = el->data;
1606 if (!strcmp(temp->name, name)) {
1607 mc = temp;
1608 break;
1610 if (temp->alias &&
1611 !strcmp(temp->alias, name)) {
1612 mc = temp;
1613 break;
1617 g_slist_free(machines);
1618 return mc;
1621 MachineClass *find_default_machine(void)
1623 GSList *el, *machines = object_class_get_list(TYPE_MACHINE, false);
1624 MachineClass *mc = NULL;
1626 for (el = machines; el; el = el->next) {
1627 MachineClass *temp = el->data;
1629 if (temp->is_default) {
1630 mc = temp;
1631 break;
1635 g_slist_free(machines);
1636 return mc;
1639 MachineInfoList *qmp_query_machines(Error **errp)
1641 GSList *el, *machines = object_class_get_list(TYPE_MACHINE, false);
1642 MachineInfoList *mach_list = NULL;
1644 for (el = machines; el; el = el->next) {
1645 MachineClass *mc = el->data;
1646 MachineInfoList *entry;
1647 MachineInfo *info;
1649 info = g_malloc0(sizeof(*info));
1650 if (mc->is_default) {
1651 info->has_is_default = true;
1652 info->is_default = true;
1655 if (mc->alias) {
1656 info->has_alias = true;
1657 info->alias = g_strdup(mc->alias);
1660 info->name = g_strdup(mc->name);
1661 info->cpu_max = !mc->max_cpus ? 1 : mc->max_cpus;
1663 entry = g_malloc0(sizeof(*entry));
1664 entry->value = info;
1665 entry->next = mach_list;
1666 mach_list = entry;
1669 g_slist_free(machines);
1670 return mach_list;
1673 /***********************************************************/
1674 /* main execution loop */
1676 struct vm_change_state_entry {
1677 VMChangeStateHandler *cb;
1678 void *opaque;
1679 QLIST_ENTRY (vm_change_state_entry) entries;
1682 static QLIST_HEAD(vm_change_state_head, vm_change_state_entry) vm_change_state_head;
1684 VMChangeStateEntry *qemu_add_vm_change_state_handler(VMChangeStateHandler *cb,
1685 void *opaque)
1687 VMChangeStateEntry *e;
1689 e = g_malloc0(sizeof (*e));
1691 e->cb = cb;
1692 e->opaque = opaque;
1693 QLIST_INSERT_HEAD(&vm_change_state_head, e, entries);
1694 return e;
1697 void qemu_del_vm_change_state_handler(VMChangeStateEntry *e)
1699 QLIST_REMOVE (e, entries);
1700 g_free (e);
1703 void vm_state_notify(int running, RunState state)
1705 VMChangeStateEntry *e;
1707 trace_vm_state_notify(running, state);
1709 for (e = vm_change_state_head.lh_first; e; e = e->entries.le_next) {
1710 e->cb(e->opaque, running, state);
1714 /* reset/shutdown handler */
1716 typedef struct QEMUResetEntry {
1717 QTAILQ_ENTRY(QEMUResetEntry) entry;
1718 QEMUResetHandler *func;
1719 void *opaque;
1720 } QEMUResetEntry;
1722 static QTAILQ_HEAD(reset_handlers, QEMUResetEntry) reset_handlers =
1723 QTAILQ_HEAD_INITIALIZER(reset_handlers);
1724 static int reset_requested;
1725 static int shutdown_requested, shutdown_signal = -1;
1726 static pid_t shutdown_pid;
1727 static int powerdown_requested;
1728 static int debug_requested;
1729 static int suspend_requested;
1730 static WakeupReason wakeup_reason;
1731 static NotifierList powerdown_notifiers =
1732 NOTIFIER_LIST_INITIALIZER(powerdown_notifiers);
1733 static NotifierList suspend_notifiers =
1734 NOTIFIER_LIST_INITIALIZER(suspend_notifiers);
1735 static NotifierList wakeup_notifiers =
1736 NOTIFIER_LIST_INITIALIZER(wakeup_notifiers);
1737 static uint32_t wakeup_reason_mask = ~(1 << QEMU_WAKEUP_REASON_NONE);
1739 int qemu_shutdown_requested_get(void)
1741 return shutdown_requested;
1744 int qemu_reset_requested_get(void)
1746 return reset_requested;
1749 static int qemu_shutdown_requested(void)
1751 int r = shutdown_requested;
1752 shutdown_requested = 0;
1753 return r;
1756 static void qemu_kill_report(void)
1758 if (!qtest_driver() && shutdown_signal != -1) {
1759 fprintf(stderr, "qemu: terminating on signal %d", shutdown_signal);
1760 if (shutdown_pid == 0) {
1761 /* This happens for eg ^C at the terminal, so it's worth
1762 * avoiding printing an odd message in that case.
1764 fputc('\n', stderr);
1765 } else {
1766 fprintf(stderr, " from pid " FMT_pid "\n", shutdown_pid);
1768 shutdown_signal = -1;
1772 static int qemu_reset_requested(void)
1774 int r = reset_requested;
1775 reset_requested = 0;
1776 return r;
1779 static int qemu_suspend_requested(void)
1781 int r = suspend_requested;
1782 suspend_requested = 0;
1783 return r;
1786 static WakeupReason qemu_wakeup_requested(void)
1788 return wakeup_reason;
1791 static int qemu_powerdown_requested(void)
1793 int r = powerdown_requested;
1794 powerdown_requested = 0;
1795 return r;
1798 static int qemu_debug_requested(void)
1800 int r = debug_requested;
1801 debug_requested = 0;
1802 return r;
1805 void qemu_register_reset(QEMUResetHandler *func, void *opaque)
1807 QEMUResetEntry *re = g_malloc0(sizeof(QEMUResetEntry));
1809 re->func = func;
1810 re->opaque = opaque;
1811 QTAILQ_INSERT_TAIL(&reset_handlers, re, entry);
1814 void qemu_unregister_reset(QEMUResetHandler *func, void *opaque)
1816 QEMUResetEntry *re;
1818 QTAILQ_FOREACH(re, &reset_handlers, entry) {
1819 if (re->func == func && re->opaque == opaque) {
1820 QTAILQ_REMOVE(&reset_handlers, re, entry);
1821 g_free(re);
1822 return;
1827 void qemu_devices_reset(void)
1829 QEMUResetEntry *re, *nre;
1831 /* reset all devices */
1832 QTAILQ_FOREACH_SAFE(re, &reset_handlers, entry, nre) {
1833 re->func(re->opaque);
1837 void qemu_system_reset(bool report)
1839 MachineClass *mc;
1841 mc = current_machine ? MACHINE_GET_CLASS(current_machine) : NULL;
1843 if (mc && mc->reset) {
1844 mc->reset();
1845 } else {
1846 qemu_devices_reset();
1848 if (report) {
1849 monitor_protocol_event(QEVENT_RESET, NULL);
1851 cpu_synchronize_all_post_reset();
1854 void qemu_system_reset_request(void)
1856 if (no_reboot) {
1857 shutdown_requested = 1;
1858 } else {
1859 reset_requested = 1;
1861 cpu_stop_current();
1862 qemu_notify_event();
1865 static void qemu_system_suspend(void)
1867 pause_all_vcpus();
1868 notifier_list_notify(&suspend_notifiers, NULL);
1869 runstate_set(RUN_STATE_SUSPENDED);
1870 monitor_protocol_event(QEVENT_SUSPEND, NULL);
1873 void qemu_system_suspend_request(void)
1875 if (runstate_check(RUN_STATE_SUSPENDED)) {
1876 return;
1878 suspend_requested = 1;
1879 cpu_stop_current();
1880 qemu_notify_event();
1883 void qemu_register_suspend_notifier(Notifier *notifier)
1885 notifier_list_add(&suspend_notifiers, notifier);
1888 void qemu_system_wakeup_request(WakeupReason reason)
1890 trace_system_wakeup_request(reason);
1892 if (!runstate_check(RUN_STATE_SUSPENDED)) {
1893 return;
1895 if (!(wakeup_reason_mask & (1 << reason))) {
1896 return;
1898 runstate_set(RUN_STATE_RUNNING);
1899 wakeup_reason = reason;
1900 qemu_notify_event();
1903 void qemu_system_wakeup_enable(WakeupReason reason, bool enabled)
1905 if (enabled) {
1906 wakeup_reason_mask |= (1 << reason);
1907 } else {
1908 wakeup_reason_mask &= ~(1 << reason);
1912 void qemu_register_wakeup_notifier(Notifier *notifier)
1914 notifier_list_add(&wakeup_notifiers, notifier);
1917 void qemu_system_killed(int signal, pid_t pid)
1919 shutdown_signal = signal;
1920 shutdown_pid = pid;
1921 no_shutdown = 0;
1922 qemu_system_shutdown_request();
1925 void qemu_system_shutdown_request(void)
1927 shutdown_requested = 1;
1928 qemu_notify_event();
1931 static void qemu_system_powerdown(void)
1933 monitor_protocol_event(QEVENT_POWERDOWN, NULL);
1934 notifier_list_notify(&powerdown_notifiers, NULL);
1937 void qemu_system_powerdown_request(void)
1939 powerdown_requested = 1;
1940 qemu_notify_event();
1943 void qemu_register_powerdown_notifier(Notifier *notifier)
1945 notifier_list_add(&powerdown_notifiers, notifier);
1948 void qemu_system_debug_request(void)
1950 debug_requested = 1;
1951 qemu_notify_event();
1954 static bool main_loop_should_exit(void)
1956 RunState r;
1957 if (qemu_debug_requested()) {
1958 vm_stop(RUN_STATE_DEBUG);
1960 if (qemu_suspend_requested()) {
1961 qemu_system_suspend();
1963 if (qemu_shutdown_requested()) {
1964 qemu_kill_report();
1965 monitor_protocol_event(QEVENT_SHUTDOWN, NULL);
1966 if (no_shutdown) {
1967 vm_stop(RUN_STATE_SHUTDOWN);
1968 } else {
1969 return true;
1972 if (qemu_reset_requested()) {
1973 pause_all_vcpus();
1974 cpu_synchronize_all_states();
1975 qemu_system_reset(VMRESET_REPORT);
1976 resume_all_vcpus();
1977 if (runstate_needs_reset()) {
1978 runstate_set(RUN_STATE_PAUSED);
1981 if (qemu_wakeup_requested()) {
1982 pause_all_vcpus();
1983 cpu_synchronize_all_states();
1984 qemu_system_reset(VMRESET_SILENT);
1985 notifier_list_notify(&wakeup_notifiers, &wakeup_reason);
1986 wakeup_reason = QEMU_WAKEUP_REASON_NONE;
1987 resume_all_vcpus();
1988 monitor_protocol_event(QEVENT_WAKEUP, NULL);
1990 if (qemu_powerdown_requested()) {
1991 qemu_system_powerdown();
1993 if (qemu_vmstop_requested(&r)) {
1994 vm_stop(r);
1996 return false;
1999 static void main_loop(void)
2001 bool nonblocking;
2002 int last_io = 0;
2003 #ifdef CONFIG_PROFILER
2004 int64_t ti;
2005 #endif
2006 do {
2007 nonblocking = !kvm_enabled() && !xen_enabled() && last_io > 0;
2008 #ifdef CONFIG_PROFILER
2009 ti = profile_getclock();
2010 #endif
2011 last_io = main_loop_wait(nonblocking);
2012 #ifdef CONFIG_PROFILER
2013 dev_time += profile_getclock() - ti;
2014 #endif
2015 } while (!main_loop_should_exit());
2018 static void version(void)
2020 printf("QEMU emulator version " QEMU_VERSION QEMU_PKGVERSION ", Copyright (c) 2003-2008 Fabrice Bellard\n");
2023 static void help(int exitcode)
2025 version();
2026 printf("usage: %s [options] [disk_image]\n\n"
2027 "'disk_image' is a raw hard disk image for IDE hard disk 0\n\n",
2028 error_get_progname());
2030 #define QEMU_OPTIONS_GENERATE_HELP
2031 #include "qemu-options-wrapper.h"
2033 printf("\nDuring emulation, the following keys are useful:\n"
2034 "ctrl-alt-f toggle full screen\n"
2035 "ctrl-alt-n switch to virtual console 'n'\n"
2036 "ctrl-alt toggle mouse and keyboard grab\n"
2037 "\n"
2038 "When using -nographic, press 'ctrl-a h' to get some help.\n");
2040 exit(exitcode);
2043 #define HAS_ARG 0x0001
2045 typedef struct QEMUOption {
2046 const char *name;
2047 int flags;
2048 int index;
2049 uint32_t arch_mask;
2050 } QEMUOption;
2052 static const QEMUOption qemu_options[] = {
2053 { "h", 0, QEMU_OPTION_h, QEMU_ARCH_ALL },
2054 #define QEMU_OPTIONS_GENERATE_OPTIONS
2055 #include "qemu-options-wrapper.h"
2056 { NULL },
2059 static bool vga_available(void)
2061 return object_class_by_name("VGA") || object_class_by_name("isa-vga");
2064 static bool cirrus_vga_available(void)
2066 return object_class_by_name("cirrus-vga")
2067 || object_class_by_name("isa-cirrus-vga");
2070 static bool vmware_vga_available(void)
2072 return object_class_by_name("vmware-svga");
2075 static bool qxl_vga_available(void)
2077 return object_class_by_name("qxl-vga");
2080 static bool tcx_vga_available(void)
2082 return object_class_by_name("SUNW,tcx");
2085 static bool cg3_vga_available(void)
2087 return object_class_by_name("cgthree");
2090 static void select_vgahw (const char *p)
2092 const char *opts;
2094 assert(vga_interface_type == VGA_NONE);
2095 if (strstart(p, "std", &opts)) {
2096 if (vga_available()) {
2097 vga_interface_type = VGA_STD;
2098 } else {
2099 fprintf(stderr, "Error: standard VGA not available\n");
2100 exit(0);
2102 } else if (strstart(p, "cirrus", &opts)) {
2103 if (cirrus_vga_available()) {
2104 vga_interface_type = VGA_CIRRUS;
2105 } else {
2106 fprintf(stderr, "Error: Cirrus VGA not available\n");
2107 exit(0);
2109 } else if (strstart(p, "vmware", &opts)) {
2110 if (vmware_vga_available()) {
2111 vga_interface_type = VGA_VMWARE;
2112 } else {
2113 fprintf(stderr, "Error: VMWare SVGA not available\n");
2114 exit(0);
2116 } else if (strstart(p, "xenfb", &opts)) {
2117 vga_interface_type = VGA_XENFB;
2118 } else if (strstart(p, "qxl", &opts)) {
2119 if (qxl_vga_available()) {
2120 vga_interface_type = VGA_QXL;
2121 } else {
2122 fprintf(stderr, "Error: QXL VGA not available\n");
2123 exit(0);
2125 } else if (strstart(p, "tcx", &opts)) {
2126 if (tcx_vga_available()) {
2127 vga_interface_type = VGA_TCX;
2128 } else {
2129 fprintf(stderr, "Error: TCX framebuffer not available\n");
2130 exit(0);
2132 } else if (strstart(p, "cg3", &opts)) {
2133 if (cg3_vga_available()) {
2134 vga_interface_type = VGA_CG3;
2135 } else {
2136 fprintf(stderr, "Error: CG3 framebuffer not available\n");
2137 exit(0);
2139 } else if (!strstart(p, "none", &opts)) {
2140 invalid_vga:
2141 fprintf(stderr, "Unknown vga type: %s\n", p);
2142 exit(1);
2144 while (*opts) {
2145 const char *nextopt;
2147 if (strstart(opts, ",retrace=", &nextopt)) {
2148 opts = nextopt;
2149 if (strstart(opts, "dumb", &nextopt))
2150 vga_retrace_method = VGA_RETRACE_DUMB;
2151 else if (strstart(opts, "precise", &nextopt))
2152 vga_retrace_method = VGA_RETRACE_PRECISE;
2153 else goto invalid_vga;
2154 } else goto invalid_vga;
2155 opts = nextopt;
2159 static DisplayType select_display(const char *p)
2161 const char *opts;
2162 DisplayType display = DT_DEFAULT;
2164 if (strstart(p, "sdl", &opts)) {
2165 #ifdef CONFIG_SDL
2166 display = DT_SDL;
2167 while (*opts) {
2168 const char *nextopt;
2170 if (strstart(opts, ",frame=", &nextopt)) {
2171 opts = nextopt;
2172 if (strstart(opts, "on", &nextopt)) {
2173 no_frame = 0;
2174 } else if (strstart(opts, "off", &nextopt)) {
2175 no_frame = 1;
2176 } else {
2177 goto invalid_sdl_args;
2179 } else if (strstart(opts, ",alt_grab=", &nextopt)) {
2180 opts = nextopt;
2181 if (strstart(opts, "on", &nextopt)) {
2182 alt_grab = 1;
2183 } else if (strstart(opts, "off", &nextopt)) {
2184 alt_grab = 0;
2185 } else {
2186 goto invalid_sdl_args;
2188 } else if (strstart(opts, ",ctrl_grab=", &nextopt)) {
2189 opts = nextopt;
2190 if (strstart(opts, "on", &nextopt)) {
2191 ctrl_grab = 1;
2192 } else if (strstart(opts, "off", &nextopt)) {
2193 ctrl_grab = 0;
2194 } else {
2195 goto invalid_sdl_args;
2197 } else if (strstart(opts, ",window_close=", &nextopt)) {
2198 opts = nextopt;
2199 if (strstart(opts, "on", &nextopt)) {
2200 no_quit = 0;
2201 } else if (strstart(opts, "off", &nextopt)) {
2202 no_quit = 1;
2203 } else {
2204 goto invalid_sdl_args;
2206 } else {
2207 invalid_sdl_args:
2208 fprintf(stderr, "Invalid SDL option string: %s\n", p);
2209 exit(1);
2211 opts = nextopt;
2213 #else
2214 fprintf(stderr, "SDL support is disabled\n");
2215 exit(1);
2216 #endif
2217 } else if (strstart(p, "vnc", &opts)) {
2218 #ifdef CONFIG_VNC
2219 display_remote++;
2221 if (*opts) {
2222 const char *nextopt;
2224 if (strstart(opts, "=", &nextopt)) {
2225 vnc_display = nextopt;
2228 if (!vnc_display) {
2229 fprintf(stderr, "VNC requires a display argument vnc=<display>\n");
2230 exit(1);
2232 #else
2233 fprintf(stderr, "VNC support is disabled\n");
2234 exit(1);
2235 #endif
2236 } else if (strstart(p, "curses", &opts)) {
2237 #ifdef CONFIG_CURSES
2238 display = DT_CURSES;
2239 #else
2240 fprintf(stderr, "Curses support is disabled\n");
2241 exit(1);
2242 #endif
2243 } else if (strstart(p, "gtk", &opts)) {
2244 #ifdef CONFIG_GTK
2245 display = DT_GTK;
2246 while (*opts) {
2247 const char *nextopt;
2249 if (strstart(opts, ",grab_on_hover=", &nextopt)) {
2250 opts = nextopt;
2251 if (strstart(opts, "on", &nextopt)) {
2252 grab_on_hover = true;
2253 } else if (strstart(opts, "off", &nextopt)) {
2254 grab_on_hover = false;
2255 } else {
2256 goto invalid_gtk_args;
2258 } else {
2259 invalid_gtk_args:
2260 fprintf(stderr, "Invalid GTK option string: %s\n", p);
2261 exit(1);
2263 opts = nextopt;
2265 #else
2266 fprintf(stderr, "GTK support is disabled\n");
2267 exit(1);
2268 #endif
2269 } else if (strstart(p, "none", &opts)) {
2270 display = DT_NONE;
2271 } else {
2272 fprintf(stderr, "Unknown display type: %s\n", p);
2273 exit(1);
2276 return display;
2279 static int balloon_parse(const char *arg)
2281 QemuOpts *opts;
2283 if (strcmp(arg, "none") == 0) {
2284 return 0;
2287 if (!strncmp(arg, "virtio", 6)) {
2288 if (arg[6] == ',') {
2289 /* have params -> parse them */
2290 opts = qemu_opts_parse(qemu_find_opts("device"), arg+7, 0);
2291 if (!opts)
2292 return -1;
2293 } else {
2294 /* create empty opts */
2295 opts = qemu_opts_create(qemu_find_opts("device"), NULL, 0,
2296 &error_abort);
2298 qemu_opt_set(opts, "driver", "virtio-balloon");
2299 return 0;
2302 return -1;
2305 char *qemu_find_file(int type, const char *name)
2307 int i;
2308 const char *subdir;
2309 char *buf;
2311 /* Try the name as a straight path first */
2312 if (access(name, R_OK) == 0) {
2313 trace_load_file(name, name);
2314 return g_strdup(name);
2317 switch (type) {
2318 case QEMU_FILE_TYPE_BIOS:
2319 subdir = "";
2320 break;
2321 case QEMU_FILE_TYPE_KEYMAP:
2322 subdir = "keymaps/";
2323 break;
2324 default:
2325 abort();
2328 for (i = 0; i < data_dir_idx; i++) {
2329 buf = g_strdup_printf("%s/%s%s", data_dir[i], subdir, name);
2330 if (access(buf, R_OK) == 0) {
2331 trace_load_file(name, buf);
2332 return buf;
2334 g_free(buf);
2336 return NULL;
2339 static int device_help_func(QemuOpts *opts, void *opaque)
2341 return qdev_device_help(opts);
2344 static int device_init_func(QemuOpts *opts, void *opaque)
2346 DeviceState *dev;
2348 dev = qdev_device_add(opts);
2349 if (!dev)
2350 return -1;
2351 object_unref(OBJECT(dev));
2352 return 0;
2355 static int chardev_init_func(QemuOpts *opts, void *opaque)
2357 Error *local_err = NULL;
2359 qemu_chr_new_from_opts(opts, NULL, &local_err);
2360 if (local_err) {
2361 error_report("%s", error_get_pretty(local_err));
2362 error_free(local_err);
2363 return -1;
2365 return 0;
2368 #ifdef CONFIG_VIRTFS
2369 static int fsdev_init_func(QemuOpts *opts, void *opaque)
2371 int ret;
2372 ret = qemu_fsdev_add(opts);
2374 return ret;
2376 #endif
2378 static int mon_init_func(QemuOpts *opts, void *opaque)
2380 CharDriverState *chr;
2381 const char *chardev;
2382 const char *mode;
2383 int flags;
2385 mode = qemu_opt_get(opts, "mode");
2386 if (mode == NULL) {
2387 mode = "readline";
2389 if (strcmp(mode, "readline") == 0) {
2390 flags = MONITOR_USE_READLINE;
2391 } else if (strcmp(mode, "control") == 0) {
2392 flags = MONITOR_USE_CONTROL;
2393 } else {
2394 fprintf(stderr, "unknown monitor mode \"%s\"\n", mode);
2395 exit(1);
2398 if (qemu_opt_get_bool(opts, "pretty", 0))
2399 flags |= MONITOR_USE_PRETTY;
2401 if (qemu_opt_get_bool(opts, "default", 0))
2402 flags |= MONITOR_IS_DEFAULT;
2404 chardev = qemu_opt_get(opts, "chardev");
2405 chr = qemu_chr_find(chardev);
2406 if (chr == NULL) {
2407 fprintf(stderr, "chardev \"%s\" not found\n", chardev);
2408 exit(1);
2411 qemu_chr_fe_claim_no_fail(chr);
2412 monitor_init(chr, flags);
2413 return 0;
2416 static void monitor_parse(const char *optarg, const char *mode)
2418 static int monitor_device_index = 0;
2419 QemuOpts *opts;
2420 const char *p;
2421 char label[32];
2422 int def = 0;
2424 if (strstart(optarg, "chardev:", &p)) {
2425 snprintf(label, sizeof(label), "%s", p);
2426 } else {
2427 snprintf(label, sizeof(label), "compat_monitor%d",
2428 monitor_device_index);
2429 if (monitor_device_index == 0) {
2430 def = 1;
2432 opts = qemu_chr_parse_compat(label, optarg);
2433 if (!opts) {
2434 fprintf(stderr, "parse error: %s\n", optarg);
2435 exit(1);
2439 opts = qemu_opts_create(qemu_find_opts("mon"), label, 1, NULL);
2440 if (!opts) {
2441 fprintf(stderr, "duplicate chardev: %s\n", label);
2442 exit(1);
2444 qemu_opt_set(opts, "mode", mode);
2445 qemu_opt_set(opts, "chardev", label);
2446 if (def)
2447 qemu_opt_set(opts, "default", "on");
2448 monitor_device_index++;
2451 struct device_config {
2452 enum {
2453 DEV_USB, /* -usbdevice */
2454 DEV_BT, /* -bt */
2455 DEV_SERIAL, /* -serial */
2456 DEV_PARALLEL, /* -parallel */
2457 DEV_VIRTCON, /* -virtioconsole */
2458 DEV_DEBUGCON, /* -debugcon */
2459 DEV_GDB, /* -gdb, -s */
2460 DEV_SCLP, /* s390 sclp */
2461 } type;
2462 const char *cmdline;
2463 Location loc;
2464 QTAILQ_ENTRY(device_config) next;
2467 static QTAILQ_HEAD(, device_config) device_configs =
2468 QTAILQ_HEAD_INITIALIZER(device_configs);
2470 static void add_device_config(int type, const char *cmdline)
2472 struct device_config *conf;
2474 conf = g_malloc0(sizeof(*conf));
2475 conf->type = type;
2476 conf->cmdline = cmdline;
2477 loc_save(&conf->loc);
2478 QTAILQ_INSERT_TAIL(&device_configs, conf, next);
2481 static int foreach_device_config(int type, int (*func)(const char *cmdline))
2483 struct device_config *conf;
2484 int rc;
2486 QTAILQ_FOREACH(conf, &device_configs, next) {
2487 if (conf->type != type)
2488 continue;
2489 loc_push_restore(&conf->loc);
2490 rc = func(conf->cmdline);
2491 loc_pop(&conf->loc);
2492 if (0 != rc)
2493 return rc;
2495 return 0;
2498 static int serial_parse(const char *devname)
2500 static int index = 0;
2501 char label[32];
2503 if (strcmp(devname, "none") == 0)
2504 return 0;
2505 if (index == MAX_SERIAL_PORTS) {
2506 fprintf(stderr, "qemu: too many serial ports\n");
2507 exit(1);
2509 snprintf(label, sizeof(label), "serial%d", index);
2510 serial_hds[index] = qemu_chr_new(label, devname, NULL);
2511 if (!serial_hds[index]) {
2512 fprintf(stderr, "qemu: could not connect serial device"
2513 " to character backend '%s'\n", devname);
2514 return -1;
2516 index++;
2517 return 0;
2520 static int parallel_parse(const char *devname)
2522 static int index = 0;
2523 char label[32];
2525 if (strcmp(devname, "none") == 0)
2526 return 0;
2527 if (index == MAX_PARALLEL_PORTS) {
2528 fprintf(stderr, "qemu: too many parallel ports\n");
2529 exit(1);
2531 snprintf(label, sizeof(label), "parallel%d", index);
2532 parallel_hds[index] = qemu_chr_new(label, devname, NULL);
2533 if (!parallel_hds[index]) {
2534 fprintf(stderr, "qemu: could not connect parallel device"
2535 " to character backend '%s'\n", devname);
2536 return -1;
2538 index++;
2539 return 0;
2542 static int virtcon_parse(const char *devname)
2544 QemuOptsList *device = qemu_find_opts("device");
2545 static int index = 0;
2546 char label[32];
2547 QemuOpts *bus_opts, *dev_opts;
2549 if (strcmp(devname, "none") == 0)
2550 return 0;
2551 if (index == MAX_VIRTIO_CONSOLES) {
2552 fprintf(stderr, "qemu: too many virtio consoles\n");
2553 exit(1);
2556 bus_opts = qemu_opts_create(device, NULL, 0, &error_abort);
2557 if (arch_type == QEMU_ARCH_S390X) {
2558 qemu_opt_set(bus_opts, "driver", "virtio-serial-s390");
2559 } else {
2560 qemu_opt_set(bus_opts, "driver", "virtio-serial-pci");
2563 dev_opts = qemu_opts_create(device, NULL, 0, &error_abort);
2564 qemu_opt_set(dev_opts, "driver", "virtconsole");
2566 snprintf(label, sizeof(label), "virtcon%d", index);
2567 virtcon_hds[index] = qemu_chr_new(label, devname, NULL);
2568 if (!virtcon_hds[index]) {
2569 fprintf(stderr, "qemu: could not connect virtio console"
2570 " to character backend '%s'\n", devname);
2571 return -1;
2573 qemu_opt_set(dev_opts, "chardev", label);
2575 index++;
2576 return 0;
2579 static int sclp_parse(const char *devname)
2581 QemuOptsList *device = qemu_find_opts("device");
2582 static int index = 0;
2583 char label[32];
2584 QemuOpts *dev_opts;
2586 if (strcmp(devname, "none") == 0) {
2587 return 0;
2589 if (index == MAX_SCLP_CONSOLES) {
2590 fprintf(stderr, "qemu: too many sclp consoles\n");
2591 exit(1);
2594 assert(arch_type == QEMU_ARCH_S390X);
2596 dev_opts = qemu_opts_create(device, NULL, 0, NULL);
2597 qemu_opt_set(dev_opts, "driver", "sclpconsole");
2599 snprintf(label, sizeof(label), "sclpcon%d", index);
2600 sclp_hds[index] = qemu_chr_new(label, devname, NULL);
2601 if (!sclp_hds[index]) {
2602 fprintf(stderr, "qemu: could not connect sclp console"
2603 " to character backend '%s'\n", devname);
2604 return -1;
2606 qemu_opt_set(dev_opts, "chardev", label);
2608 index++;
2609 return 0;
2612 static int debugcon_parse(const char *devname)
2614 QemuOpts *opts;
2616 if (!qemu_chr_new("debugcon", devname, NULL)) {
2617 exit(1);
2619 opts = qemu_opts_create(qemu_find_opts("device"), "debugcon", 1, NULL);
2620 if (!opts) {
2621 fprintf(stderr, "qemu: already have a debugcon device\n");
2622 exit(1);
2624 qemu_opt_set(opts, "driver", "isa-debugcon");
2625 qemu_opt_set(opts, "chardev", "debugcon");
2626 return 0;
2629 static MachineClass *machine_parse(const char *name)
2631 MachineClass *mc = NULL;
2632 GSList *el, *machines = object_class_get_list(TYPE_MACHINE, false);
2634 if (name) {
2635 mc = find_machine(name);
2637 if (mc) {
2638 return mc;
2640 if (name && !is_help_option(name)) {
2641 error_report("Unsupported machine type");
2642 error_printf("Use -machine help to list supported machines!\n");
2643 } else {
2644 printf("Supported machines are:\n");
2645 for (el = machines; el; el = el->next) {
2646 MachineClass *mc = el->data;
2647 if (mc->alias) {
2648 printf("%-20s %s (alias of %s)\n", mc->alias, mc->desc, mc->name);
2650 printf("%-20s %s%s\n", mc->name, mc->desc,
2651 mc->is_default ? " (default)" : "");
2655 g_slist_free(machines);
2656 exit(!name || !is_help_option(name));
2659 static int tcg_init(MachineClass *mc)
2661 tcg_exec_init(tcg_tb_size * 1024 * 1024);
2662 return 0;
2665 static struct {
2666 const char *opt_name;
2667 const char *name;
2668 int (*available)(void);
2669 int (*init)(MachineClass *mc);
2670 bool *allowed;
2671 } accel_list[] = {
2672 { "tcg", "tcg", tcg_available, tcg_init, &tcg_allowed },
2673 { "xen", "Xen", xen_available, xen_init, &xen_allowed },
2674 { "kvm", "KVM", kvm_available, kvm_init, &kvm_allowed },
2675 { "qtest", "QTest", qtest_available, qtest_init_accel, &qtest_allowed },
2678 static int configure_accelerator(MachineClass *mc)
2680 const char *p;
2681 char buf[10];
2682 int i, ret;
2683 bool accel_initialised = false;
2684 bool init_failed = false;
2686 p = qemu_opt_get(qemu_get_machine_opts(), "accel");
2687 if (p == NULL) {
2688 /* Use the default "accelerator", tcg */
2689 p = "tcg";
2692 while (!accel_initialised && *p != '\0') {
2693 if (*p == ':') {
2694 p++;
2696 p = get_opt_name(buf, sizeof (buf), p, ':');
2697 for (i = 0; i < ARRAY_SIZE(accel_list); i++) {
2698 if (strcmp(accel_list[i].opt_name, buf) == 0) {
2699 if (!accel_list[i].available()) {
2700 printf("%s not supported for this target\n",
2701 accel_list[i].name);
2702 break;
2704 *(accel_list[i].allowed) = true;
2705 ret = accel_list[i].init(mc);
2706 if (ret < 0) {
2707 init_failed = true;
2708 fprintf(stderr, "failed to initialize %s: %s\n",
2709 accel_list[i].name,
2710 strerror(-ret));
2711 *(accel_list[i].allowed) = false;
2712 } else {
2713 accel_initialised = true;
2715 break;
2718 if (i == ARRAY_SIZE(accel_list)) {
2719 fprintf(stderr, "\"%s\" accelerator does not exist.\n", buf);
2723 if (!accel_initialised) {
2724 if (!init_failed) {
2725 fprintf(stderr, "No accelerator found!\n");
2727 exit(1);
2730 if (init_failed) {
2731 fprintf(stderr, "Back to %s accelerator.\n", accel_list[i].name);
2734 return !accel_initialised;
2737 void qemu_add_exit_notifier(Notifier *notify)
2739 notifier_list_add(&exit_notifiers, notify);
2742 void qemu_remove_exit_notifier(Notifier *notify)
2744 notifier_remove(notify);
2747 static void qemu_run_exit_notifiers(void)
2749 notifier_list_notify(&exit_notifiers, NULL);
2752 void qemu_add_machine_init_done_notifier(Notifier *notify)
2754 notifier_list_add(&machine_init_done_notifiers, notify);
2757 static void qemu_run_machine_init_done_notifiers(void)
2759 notifier_list_notify(&machine_init_done_notifiers, NULL);
2762 static const QEMUOption *lookup_opt(int argc, char **argv,
2763 const char **poptarg, int *poptind)
2765 const QEMUOption *popt;
2766 int optind = *poptind;
2767 char *r = argv[optind];
2768 const char *optarg;
2770 loc_set_cmdline(argv, optind, 1);
2771 optind++;
2772 /* Treat --foo the same as -foo. */
2773 if (r[1] == '-')
2774 r++;
2775 popt = qemu_options;
2776 for(;;) {
2777 if (!popt->name) {
2778 error_report("invalid option");
2779 exit(1);
2781 if (!strcmp(popt->name, r + 1))
2782 break;
2783 popt++;
2785 if (popt->flags & HAS_ARG) {
2786 if (optind >= argc) {
2787 error_report("requires an argument");
2788 exit(1);
2790 optarg = argv[optind++];
2791 loc_set_cmdline(argv, optind - 2, 2);
2792 } else {
2793 optarg = NULL;
2796 *poptarg = optarg;
2797 *poptind = optind;
2799 return popt;
2802 static gpointer malloc_and_trace(gsize n_bytes)
2804 void *ptr = malloc(n_bytes);
2805 trace_g_malloc(n_bytes, ptr);
2806 return ptr;
2809 static gpointer realloc_and_trace(gpointer mem, gsize n_bytes)
2811 void *ptr = realloc(mem, n_bytes);
2812 trace_g_realloc(mem, n_bytes, ptr);
2813 return ptr;
2816 static void free_and_trace(gpointer mem)
2818 trace_g_free(mem);
2819 free(mem);
2822 static int object_set_property(const char *name, const char *value, void *opaque)
2824 Object *obj = OBJECT(opaque);
2825 StringInputVisitor *siv;
2826 Error *local_err = NULL;
2828 if (strcmp(name, "qom-type") == 0 || strcmp(name, "id") == 0 ||
2829 strcmp(name, "type") == 0) {
2830 return 0;
2833 siv = string_input_visitor_new(value);
2834 object_property_set(obj, string_input_get_visitor(siv), name, &local_err);
2835 string_input_visitor_cleanup(siv);
2837 if (local_err) {
2838 qerror_report_err(local_err);
2839 error_free(local_err);
2840 return -1;
2843 return 0;
2846 static int object_create(QemuOpts *opts, void *opaque)
2848 Error *err = NULL;
2849 char *type = NULL;
2850 char *id = NULL;
2851 void *dummy = NULL;
2852 OptsVisitor *ov;
2853 QDict *pdict;
2855 ov = opts_visitor_new(opts);
2856 pdict = qemu_opts_to_qdict(opts, NULL);
2858 visit_start_struct(opts_get_visitor(ov), &dummy, NULL, NULL, 0, &err);
2859 if (err) {
2860 goto out;
2863 qdict_del(pdict, "qom-type");
2864 visit_type_str(opts_get_visitor(ov), &type, "qom-type", &err);
2865 if (err) {
2866 goto out;
2869 qdict_del(pdict, "id");
2870 visit_type_str(opts_get_visitor(ov), &id, "id", &err);
2871 if (err) {
2872 goto out;
2875 object_add(type, id, pdict, opts_get_visitor(ov), &err);
2876 if (err) {
2877 goto out;
2879 visit_end_struct(opts_get_visitor(ov), &err);
2880 if (err) {
2881 qmp_object_del(id, NULL);
2884 out:
2885 opts_visitor_cleanup(ov);
2887 QDECREF(pdict);
2888 g_free(id);
2889 g_free(type);
2890 g_free(dummy);
2891 if (err) {
2892 qerror_report_err(err);
2893 return -1;
2895 return 0;
2898 int main(int argc, char **argv, char **envp)
2900 int i;
2901 int snapshot, linux_boot;
2902 const char *icount_option = NULL;
2903 const char *initrd_filename;
2904 const char *kernel_filename, *kernel_cmdline;
2905 const char *boot_order;
2906 DisplayState *ds;
2907 int cyls, heads, secs, translation;
2908 QemuOpts *hda_opts = NULL, *opts, *machine_opts;
2909 QemuOptsList *olist;
2910 int optind;
2911 const char *optarg;
2912 const char *loadvm = NULL;
2913 MachineClass *machine_class;
2914 const char *cpu_model;
2915 const char *vga_model = NULL;
2916 const char *qtest_chrdev = NULL;
2917 const char *qtest_log = NULL;
2918 const char *pid_file = NULL;
2919 const char *incoming = NULL;
2920 #ifdef CONFIG_VNC
2921 int show_vnc_port = 0;
2922 #endif
2923 bool defconfig = true;
2924 bool userconfig = true;
2925 const char *log_mask = NULL;
2926 const char *log_file = NULL;
2927 GMemVTable mem_trace = {
2928 .malloc = malloc_and_trace,
2929 .realloc = realloc_and_trace,
2930 .free = free_and_trace,
2932 const char *trace_events = NULL;
2933 const char *trace_file = NULL;
2934 const ram_addr_t default_ram_size = (ram_addr_t)DEFAULT_RAM_SIZE *
2935 1024 * 1024;
2936 ram_addr_t maxram_size = default_ram_size;
2937 uint64_t ram_slots = 0;
2938 FILE *vmstate_dump_file = NULL;
2940 atexit(qemu_run_exit_notifiers);
2941 error_set_progname(argv[0]);
2942 qemu_init_exec_dir(argv[0]);
2944 g_mem_set_vtable(&mem_trace);
2946 module_call_init(MODULE_INIT_QOM);
2948 qemu_add_opts(&qemu_drive_opts);
2949 qemu_add_drive_opts(&qemu_legacy_drive_opts);
2950 qemu_add_drive_opts(&qemu_common_drive_opts);
2951 qemu_add_drive_opts(&qemu_drive_opts);
2952 qemu_add_opts(&qemu_chardev_opts);
2953 qemu_add_opts(&qemu_device_opts);
2954 qemu_add_opts(&qemu_netdev_opts);
2955 qemu_add_opts(&qemu_net_opts);
2956 qemu_add_opts(&qemu_rtc_opts);
2957 qemu_add_opts(&qemu_global_opts);
2958 qemu_add_opts(&qemu_mon_opts);
2959 qemu_add_opts(&qemu_trace_opts);
2960 qemu_add_opts(&qemu_option_rom_opts);
2961 qemu_add_opts(&qemu_machine_opts);
2962 qemu_add_opts(&qemu_mem_opts);
2963 qemu_add_opts(&qemu_smp_opts);
2964 qemu_add_opts(&qemu_boot_opts);
2965 qemu_add_opts(&qemu_sandbox_opts);
2966 qemu_add_opts(&qemu_add_fd_opts);
2967 qemu_add_opts(&qemu_object_opts);
2968 qemu_add_opts(&qemu_tpmdev_opts);
2969 qemu_add_opts(&qemu_realtime_opts);
2970 qemu_add_opts(&qemu_msg_opts);
2971 qemu_add_opts(&qemu_name_opts);
2972 qemu_add_opts(&qemu_numa_opts);
2974 runstate_init();
2976 rtc_clock = QEMU_CLOCK_HOST;
2978 qemu_init_auxval(envp);
2979 qemu_cache_utils_init();
2981 QLIST_INIT (&vm_change_state_head);
2982 os_setup_early_signal_handling();
2984 module_call_init(MODULE_INIT_MACHINE);
2985 machine_class = find_default_machine();
2986 cpu_model = NULL;
2987 ram_size = default_ram_size;
2988 snapshot = 0;
2989 cyls = heads = secs = 0;
2990 translation = BIOS_ATA_TRANSLATION_AUTO;
2992 for (i = 0; i < MAX_NODES; i++) {
2993 numa_info[i].node_mem = 0;
2994 bitmap_zero(numa_info[i].node_cpu, MAX_CPUMASK_BITS);
2997 nb_numa_nodes = 0;
2998 nb_nics = 0;
3000 bdrv_init_with_whitelist();
3002 autostart = 1;
3004 /* first pass of option parsing */
3005 optind = 1;
3006 while (optind < argc) {
3007 if (argv[optind][0] != '-') {
3008 /* disk image */
3009 optind++;
3010 } else {
3011 const QEMUOption *popt;
3013 popt = lookup_opt(argc, argv, &optarg, &optind);
3014 switch (popt->index) {
3015 case QEMU_OPTION_nodefconfig:
3016 defconfig = false;
3017 break;
3018 case QEMU_OPTION_nouserconfig:
3019 userconfig = false;
3020 break;
3025 if (defconfig) {
3026 int ret;
3027 ret = qemu_read_default_config_files(userconfig);
3028 if (ret < 0) {
3029 exit(1);
3033 /* second pass of option parsing */
3034 optind = 1;
3035 for(;;) {
3036 if (optind >= argc)
3037 break;
3038 if (argv[optind][0] != '-') {
3039 hda_opts = drive_add(IF_DEFAULT, 0, argv[optind++], HD_OPTS);
3040 } else {
3041 const QEMUOption *popt;
3043 popt = lookup_opt(argc, argv, &optarg, &optind);
3044 if (!(popt->arch_mask & arch_type)) {
3045 printf("Option %s not supported for this target\n", popt->name);
3046 exit(1);
3048 switch(popt->index) {
3049 case QEMU_OPTION_M:
3050 machine_class = machine_parse(optarg);
3051 break;
3052 case QEMU_OPTION_no_kvm_irqchip: {
3053 olist = qemu_find_opts("machine");
3054 qemu_opts_parse(olist, "kernel_irqchip=off", 0);
3055 break;
3057 case QEMU_OPTION_cpu:
3058 /* hw initialization will check this */
3059 cpu_model = optarg;
3060 break;
3061 case QEMU_OPTION_hda:
3063 char buf[256];
3064 if (cyls == 0)
3065 snprintf(buf, sizeof(buf), "%s", HD_OPTS);
3066 else
3067 snprintf(buf, sizeof(buf),
3068 "%s,cyls=%d,heads=%d,secs=%d%s",
3069 HD_OPTS , cyls, heads, secs,
3070 translation == BIOS_ATA_TRANSLATION_LBA ?
3071 ",trans=lba" :
3072 translation == BIOS_ATA_TRANSLATION_NONE ?
3073 ",trans=none" : "");
3074 drive_add(IF_DEFAULT, 0, optarg, buf);
3075 break;
3077 case QEMU_OPTION_hdb:
3078 case QEMU_OPTION_hdc:
3079 case QEMU_OPTION_hdd:
3080 drive_add(IF_DEFAULT, popt->index - QEMU_OPTION_hda, optarg,
3081 HD_OPTS);
3082 break;
3083 case QEMU_OPTION_drive:
3084 if (drive_def(optarg) == NULL) {
3085 exit(1);
3087 break;
3088 case QEMU_OPTION_set:
3089 if (qemu_set_option(optarg) != 0)
3090 exit(1);
3091 break;
3092 case QEMU_OPTION_global:
3093 if (qemu_global_option(optarg) != 0)
3094 exit(1);
3095 break;
3096 case QEMU_OPTION_mtdblock:
3097 drive_add(IF_MTD, -1, optarg, MTD_OPTS);
3098 break;
3099 case QEMU_OPTION_sd:
3100 drive_add(IF_SD, -1, optarg, SD_OPTS);
3101 break;
3102 case QEMU_OPTION_pflash:
3103 drive_add(IF_PFLASH, -1, optarg, PFLASH_OPTS);
3104 break;
3105 case QEMU_OPTION_snapshot:
3106 snapshot = 1;
3107 break;
3108 case QEMU_OPTION_hdachs:
3110 const char *p;
3111 p = optarg;
3112 cyls = strtol(p, (char **)&p, 0);
3113 if (cyls < 1 || cyls > 16383)
3114 goto chs_fail;
3115 if (*p != ',')
3116 goto chs_fail;
3117 p++;
3118 heads = strtol(p, (char **)&p, 0);
3119 if (heads < 1 || heads > 16)
3120 goto chs_fail;
3121 if (*p != ',')
3122 goto chs_fail;
3123 p++;
3124 secs = strtol(p, (char **)&p, 0);
3125 if (secs < 1 || secs > 63)
3126 goto chs_fail;
3127 if (*p == ',') {
3128 p++;
3129 if (!strcmp(p, "large")) {
3130 translation = BIOS_ATA_TRANSLATION_LARGE;
3131 } else if (!strcmp(p, "rechs")) {
3132 translation = BIOS_ATA_TRANSLATION_RECHS;
3133 } else if (!strcmp(p, "none")) {
3134 translation = BIOS_ATA_TRANSLATION_NONE;
3135 } else if (!strcmp(p, "lba")) {
3136 translation = BIOS_ATA_TRANSLATION_LBA;
3137 } else if (!strcmp(p, "auto")) {
3138 translation = BIOS_ATA_TRANSLATION_AUTO;
3139 } else {
3140 goto chs_fail;
3142 } else if (*p != '\0') {
3143 chs_fail:
3144 fprintf(stderr, "qemu: invalid physical CHS format\n");
3145 exit(1);
3147 if (hda_opts != NULL) {
3148 char num[16];
3149 snprintf(num, sizeof(num), "%d", cyls);
3150 qemu_opt_set(hda_opts, "cyls", num);
3151 snprintf(num, sizeof(num), "%d", heads);
3152 qemu_opt_set(hda_opts, "heads", num);
3153 snprintf(num, sizeof(num), "%d", secs);
3154 qemu_opt_set(hda_opts, "secs", num);
3155 if (translation == BIOS_ATA_TRANSLATION_LARGE) {
3156 qemu_opt_set(hda_opts, "trans", "large");
3157 } else if (translation == BIOS_ATA_TRANSLATION_RECHS) {
3158 qemu_opt_set(hda_opts, "trans", "rechs");
3159 } else if (translation == BIOS_ATA_TRANSLATION_LBA) {
3160 qemu_opt_set(hda_opts, "trans", "lba");
3161 } else if (translation == BIOS_ATA_TRANSLATION_NONE) {
3162 qemu_opt_set(hda_opts, "trans", "none");
3166 break;
3167 case QEMU_OPTION_numa:
3168 opts = qemu_opts_parse(qemu_find_opts("numa"), optarg, 1);
3169 if (!opts) {
3170 exit(1);
3172 break;
3173 case QEMU_OPTION_display:
3174 display_type = select_display(optarg);
3175 break;
3176 case QEMU_OPTION_nographic:
3177 display_type = DT_NOGRAPHIC;
3178 break;
3179 case QEMU_OPTION_curses:
3180 #ifdef CONFIG_CURSES
3181 display_type = DT_CURSES;
3182 #else
3183 fprintf(stderr, "Curses support is disabled\n");
3184 exit(1);
3185 #endif
3186 break;
3187 case QEMU_OPTION_portrait:
3188 graphic_rotate = 90;
3189 break;
3190 case QEMU_OPTION_rotate:
3191 graphic_rotate = strtol(optarg, (char **) &optarg, 10);
3192 if (graphic_rotate != 0 && graphic_rotate != 90 &&
3193 graphic_rotate != 180 && graphic_rotate != 270) {
3194 fprintf(stderr,
3195 "qemu: only 90, 180, 270 deg rotation is available\n");
3196 exit(1);
3198 break;
3199 case QEMU_OPTION_kernel:
3200 qemu_opts_set(qemu_find_opts("machine"), 0, "kernel", optarg);
3201 break;
3202 case QEMU_OPTION_initrd:
3203 qemu_opts_set(qemu_find_opts("machine"), 0, "initrd", optarg);
3204 break;
3205 case QEMU_OPTION_append:
3206 qemu_opts_set(qemu_find_opts("machine"), 0, "append", optarg);
3207 break;
3208 case QEMU_OPTION_dtb:
3209 qemu_opts_set(qemu_find_opts("machine"), 0, "dtb", optarg);
3210 break;
3211 case QEMU_OPTION_cdrom:
3212 drive_add(IF_DEFAULT, 2, optarg, CDROM_OPTS);
3213 break;
3214 case QEMU_OPTION_boot:
3215 opts = qemu_opts_parse(qemu_find_opts("boot-opts"), optarg, 1);
3216 if (!opts) {
3217 exit(1);
3219 break;
3220 case QEMU_OPTION_fda:
3221 case QEMU_OPTION_fdb:
3222 drive_add(IF_FLOPPY, popt->index - QEMU_OPTION_fda,
3223 optarg, FD_OPTS);
3224 break;
3225 case QEMU_OPTION_no_fd_bootchk:
3226 fd_bootchk = 0;
3227 break;
3228 case QEMU_OPTION_netdev:
3229 if (net_client_parse(qemu_find_opts("netdev"), optarg) == -1) {
3230 exit(1);
3232 break;
3233 case QEMU_OPTION_net:
3234 if (net_client_parse(qemu_find_opts("net"), optarg) == -1) {
3235 exit(1);
3237 break;
3238 #ifdef CONFIG_LIBISCSI
3239 case QEMU_OPTION_iscsi:
3240 opts = qemu_opts_parse(qemu_find_opts("iscsi"), optarg, 0);
3241 if (!opts) {
3242 exit(1);
3244 break;
3245 #endif
3246 #ifdef CONFIG_SLIRP
3247 case QEMU_OPTION_tftp:
3248 legacy_tftp_prefix = optarg;
3249 break;
3250 case QEMU_OPTION_bootp:
3251 legacy_bootp_filename = optarg;
3252 break;
3253 case QEMU_OPTION_redir:
3254 if (net_slirp_redir(optarg) < 0)
3255 exit(1);
3256 break;
3257 #endif
3258 case QEMU_OPTION_bt:
3259 add_device_config(DEV_BT, optarg);
3260 break;
3261 case QEMU_OPTION_audio_help:
3262 AUD_help ();
3263 exit (0);
3264 break;
3265 case QEMU_OPTION_soundhw:
3266 select_soundhw (optarg);
3267 break;
3268 case QEMU_OPTION_h:
3269 help(0);
3270 break;
3271 case QEMU_OPTION_version:
3272 version();
3273 exit(0);
3274 break;
3275 case QEMU_OPTION_m: {
3276 uint64_t sz;
3277 const char *mem_str;
3278 const char *maxmem_str, *slots_str;
3280 opts = qemu_opts_parse(qemu_find_opts("memory"),
3281 optarg, 1);
3282 if (!opts) {
3283 exit(EXIT_FAILURE);
3286 mem_str = qemu_opt_get(opts, "size");
3287 if (!mem_str) {
3288 error_report("invalid -m option, missing 'size' option");
3289 exit(EXIT_FAILURE);
3291 if (!*mem_str) {
3292 error_report("missing 'size' option value");
3293 exit(EXIT_FAILURE);
3296 sz = qemu_opt_get_size(opts, "size", ram_size);
3298 /* Fix up legacy suffix-less format */
3299 if (g_ascii_isdigit(mem_str[strlen(mem_str) - 1])) {
3300 uint64_t overflow_check = sz;
3302 sz <<= 20;
3303 if ((sz >> 20) != overflow_check) {
3304 error_report("too large 'size' option value");
3305 exit(EXIT_FAILURE);
3309 /* backward compatibility behaviour for case "-m 0" */
3310 if (sz == 0) {
3311 sz = default_ram_size;
3314 sz = QEMU_ALIGN_UP(sz, 8192);
3315 ram_size = sz;
3316 if (ram_size != sz) {
3317 error_report("ram size too large");
3318 exit(EXIT_FAILURE);
3321 maxmem_str = qemu_opt_get(opts, "maxmem");
3322 slots_str = qemu_opt_get(opts, "slots");
3323 if (maxmem_str && slots_str) {
3324 uint64_t slots;
3326 sz = qemu_opt_get_size(opts, "maxmem", 0);
3327 if (sz < ram_size) {
3328 fprintf(stderr, "qemu: invalid -m option value: maxmem "
3329 "(%" PRIu64 ") <= initial memory ("
3330 RAM_ADDR_FMT ")\n", sz, ram_size);
3331 exit(EXIT_FAILURE);
3334 slots = qemu_opt_get_number(opts, "slots", 0);
3335 if ((sz > ram_size) && !slots) {
3336 fprintf(stderr, "qemu: invalid -m option value: maxmem "
3337 "(%" PRIu64 ") more than initial memory ("
3338 RAM_ADDR_FMT ") but no hotplug slots where "
3339 "specified\n", sz, ram_size);
3340 exit(EXIT_FAILURE);
3343 if ((sz <= ram_size) && slots) {
3344 fprintf(stderr, "qemu: invalid -m option value: %"
3345 PRIu64 " hotplug slots where specified but "
3346 "maxmem (%" PRIu64 ") <= initial memory ("
3347 RAM_ADDR_FMT ")\n", slots, sz, ram_size);
3348 exit(EXIT_FAILURE);
3350 maxram_size = sz;
3351 ram_slots = slots;
3352 } else if ((!maxmem_str && slots_str) ||
3353 (maxmem_str && !slots_str)) {
3354 fprintf(stderr, "qemu: invalid -m option value: missing "
3355 "'%s' option\n", slots_str ? "maxmem" : "slots");
3356 exit(EXIT_FAILURE);
3358 break;
3360 #ifdef CONFIG_TPM
3361 case QEMU_OPTION_tpmdev:
3362 if (tpm_config_parse(qemu_find_opts("tpmdev"), optarg) < 0) {
3363 exit(1);
3365 break;
3366 #endif
3367 case QEMU_OPTION_mempath:
3368 mem_path = optarg;
3369 break;
3370 case QEMU_OPTION_mem_prealloc:
3371 mem_prealloc = 1;
3372 break;
3373 case QEMU_OPTION_d:
3374 log_mask = optarg;
3375 break;
3376 case QEMU_OPTION_D:
3377 log_file = optarg;
3378 break;
3379 case QEMU_OPTION_s:
3380 add_device_config(DEV_GDB, "tcp::" DEFAULT_GDBSTUB_PORT);
3381 break;
3382 case QEMU_OPTION_gdb:
3383 add_device_config(DEV_GDB, optarg);
3384 break;
3385 case QEMU_OPTION_L:
3386 if (data_dir_idx < ARRAY_SIZE(data_dir)) {
3387 data_dir[data_dir_idx++] = optarg;
3389 break;
3390 case QEMU_OPTION_bios:
3391 qemu_opts_set(qemu_find_opts("machine"), 0, "firmware", optarg);
3392 break;
3393 case QEMU_OPTION_singlestep:
3394 singlestep = 1;
3395 break;
3396 case QEMU_OPTION_S:
3397 autostart = 0;
3398 break;
3399 case QEMU_OPTION_k:
3400 keyboard_layout = optarg;
3401 break;
3402 case QEMU_OPTION_localtime:
3403 rtc_utc = 0;
3404 break;
3405 case QEMU_OPTION_vga:
3406 vga_model = optarg;
3407 default_vga = 0;
3408 break;
3409 case QEMU_OPTION_g:
3411 const char *p;
3412 int w, h, depth;
3413 p = optarg;
3414 w = strtol(p, (char **)&p, 10);
3415 if (w <= 0) {
3416 graphic_error:
3417 fprintf(stderr, "qemu: invalid resolution or depth\n");
3418 exit(1);
3420 if (*p != 'x')
3421 goto graphic_error;
3422 p++;
3423 h = strtol(p, (char **)&p, 10);
3424 if (h <= 0)
3425 goto graphic_error;
3426 if (*p == 'x') {
3427 p++;
3428 depth = strtol(p, (char **)&p, 10);
3429 if (depth != 8 && depth != 15 && depth != 16 &&
3430 depth != 24 && depth != 32)
3431 goto graphic_error;
3432 } else if (*p == '\0') {
3433 depth = graphic_depth;
3434 } else {
3435 goto graphic_error;
3438 graphic_width = w;
3439 graphic_height = h;
3440 graphic_depth = depth;
3442 break;
3443 case QEMU_OPTION_echr:
3445 char *r;
3446 term_escape_char = strtol(optarg, &r, 0);
3447 if (r == optarg)
3448 printf("Bad argument to echr\n");
3449 break;
3451 case QEMU_OPTION_monitor:
3452 default_monitor = 0;
3453 if (strncmp(optarg, "none", 4)) {
3454 monitor_parse(optarg, "readline");
3456 break;
3457 case QEMU_OPTION_qmp:
3458 monitor_parse(optarg, "control");
3459 default_monitor = 0;
3460 break;
3461 case QEMU_OPTION_mon:
3462 opts = qemu_opts_parse(qemu_find_opts("mon"), optarg, 1);
3463 if (!opts) {
3464 exit(1);
3466 default_monitor = 0;
3467 break;
3468 case QEMU_OPTION_chardev:
3469 opts = qemu_opts_parse(qemu_find_opts("chardev"), optarg, 1);
3470 if (!opts) {
3471 exit(1);
3473 break;
3474 case QEMU_OPTION_fsdev:
3475 olist = qemu_find_opts("fsdev");
3476 if (!olist) {
3477 fprintf(stderr, "fsdev is not supported by this qemu build.\n");
3478 exit(1);
3480 opts = qemu_opts_parse(olist, optarg, 1);
3481 if (!opts) {
3482 exit(1);
3484 break;
3485 case QEMU_OPTION_virtfs: {
3486 QemuOpts *fsdev;
3487 QemuOpts *device;
3488 const char *writeout, *sock_fd, *socket;
3490 olist = qemu_find_opts("virtfs");
3491 if (!olist) {
3492 fprintf(stderr, "virtfs is not supported by this qemu build.\n");
3493 exit(1);
3495 opts = qemu_opts_parse(olist, optarg, 1);
3496 if (!opts) {
3497 exit(1);
3500 if (qemu_opt_get(opts, "fsdriver") == NULL ||
3501 qemu_opt_get(opts, "mount_tag") == NULL) {
3502 fprintf(stderr, "Usage: -virtfs fsdriver,mount_tag=tag.\n");
3503 exit(1);
3505 fsdev = qemu_opts_create(qemu_find_opts("fsdev"),
3506 qemu_opt_get(opts, "mount_tag"),
3507 1, NULL);
3508 if (!fsdev) {
3509 fprintf(stderr, "duplicate fsdev id: %s\n",
3510 qemu_opt_get(opts, "mount_tag"));
3511 exit(1);
3514 writeout = qemu_opt_get(opts, "writeout");
3515 if (writeout) {
3516 #ifdef CONFIG_SYNC_FILE_RANGE
3517 qemu_opt_set(fsdev, "writeout", writeout);
3518 #else
3519 fprintf(stderr, "writeout=immediate not supported on "
3520 "this platform\n");
3521 exit(1);
3522 #endif
3524 qemu_opt_set(fsdev, "fsdriver", qemu_opt_get(opts, "fsdriver"));
3525 qemu_opt_set(fsdev, "path", qemu_opt_get(opts, "path"));
3526 qemu_opt_set(fsdev, "security_model",
3527 qemu_opt_get(opts, "security_model"));
3528 socket = qemu_opt_get(opts, "socket");
3529 if (socket) {
3530 qemu_opt_set(fsdev, "socket", socket);
3532 sock_fd = qemu_opt_get(opts, "sock_fd");
3533 if (sock_fd) {
3534 qemu_opt_set(fsdev, "sock_fd", sock_fd);
3537 qemu_opt_set_bool(fsdev, "readonly",
3538 qemu_opt_get_bool(opts, "readonly", 0));
3539 device = qemu_opts_create(qemu_find_opts("device"), NULL, 0,
3540 &error_abort);
3541 qemu_opt_set(device, "driver", "virtio-9p-pci");
3542 qemu_opt_set(device, "fsdev",
3543 qemu_opt_get(opts, "mount_tag"));
3544 qemu_opt_set(device, "mount_tag",
3545 qemu_opt_get(opts, "mount_tag"));
3546 break;
3548 case QEMU_OPTION_virtfs_synth: {
3549 QemuOpts *fsdev;
3550 QemuOpts *device;
3552 fsdev = qemu_opts_create(qemu_find_opts("fsdev"), "v_synth",
3553 1, NULL);
3554 if (!fsdev) {
3555 fprintf(stderr, "duplicate option: %s\n", "virtfs_synth");
3556 exit(1);
3558 qemu_opt_set(fsdev, "fsdriver", "synth");
3560 device = qemu_opts_create(qemu_find_opts("device"), NULL, 0,
3561 &error_abort);
3562 qemu_opt_set(device, "driver", "virtio-9p-pci");
3563 qemu_opt_set(device, "fsdev", "v_synth");
3564 qemu_opt_set(device, "mount_tag", "v_synth");
3565 break;
3567 case QEMU_OPTION_serial:
3568 add_device_config(DEV_SERIAL, optarg);
3569 default_serial = 0;
3570 if (strncmp(optarg, "mon:", 4) == 0) {
3571 default_monitor = 0;
3573 break;
3574 case QEMU_OPTION_watchdog:
3575 if (watchdog) {
3576 fprintf(stderr,
3577 "qemu: only one watchdog option may be given\n");
3578 return 1;
3580 watchdog = optarg;
3581 break;
3582 case QEMU_OPTION_watchdog_action:
3583 if (select_watchdog_action(optarg) == -1) {
3584 fprintf(stderr, "Unknown -watchdog-action parameter\n");
3585 exit(1);
3587 break;
3588 case QEMU_OPTION_virtiocon:
3589 add_device_config(DEV_VIRTCON, optarg);
3590 default_virtcon = 0;
3591 if (strncmp(optarg, "mon:", 4) == 0) {
3592 default_monitor = 0;
3594 break;
3595 case QEMU_OPTION_parallel:
3596 add_device_config(DEV_PARALLEL, optarg);
3597 default_parallel = 0;
3598 if (strncmp(optarg, "mon:", 4) == 0) {
3599 default_monitor = 0;
3601 break;
3602 case QEMU_OPTION_debugcon:
3603 add_device_config(DEV_DEBUGCON, optarg);
3604 break;
3605 case QEMU_OPTION_loadvm:
3606 loadvm = optarg;
3607 break;
3608 case QEMU_OPTION_full_screen:
3609 full_screen = 1;
3610 break;
3611 case QEMU_OPTION_no_frame:
3612 no_frame = 1;
3613 break;
3614 case QEMU_OPTION_alt_grab:
3615 alt_grab = 1;
3616 break;
3617 case QEMU_OPTION_ctrl_grab:
3618 ctrl_grab = 1;
3619 break;
3620 case QEMU_OPTION_no_quit:
3621 no_quit = 1;
3622 break;
3623 case QEMU_OPTION_sdl:
3624 #ifdef CONFIG_SDL
3625 display_type = DT_SDL;
3626 break;
3627 #else
3628 fprintf(stderr, "SDL support is disabled\n");
3629 exit(1);
3630 #endif
3631 case QEMU_OPTION_pidfile:
3632 pid_file = optarg;
3633 break;
3634 case QEMU_OPTION_win2k_hack:
3635 win2k_install_hack = 1;
3636 break;
3637 case QEMU_OPTION_rtc_td_hack: {
3638 static GlobalProperty slew_lost_ticks[] = {
3640 .driver = "mc146818rtc",
3641 .property = "lost_tick_policy",
3642 .value = "slew",
3644 { /* end of list */ }
3647 qdev_prop_register_global_list(slew_lost_ticks);
3648 break;
3650 case QEMU_OPTION_acpitable:
3651 opts = qemu_opts_parse(qemu_find_opts("acpi"), optarg, 1);
3652 if (!opts) {
3653 exit(1);
3655 do_acpitable_option(opts);
3656 break;
3657 case QEMU_OPTION_smbios:
3658 opts = qemu_opts_parse(qemu_find_opts("smbios"), optarg, 0);
3659 if (!opts) {
3660 exit(1);
3662 do_smbios_option(opts);
3663 break;
3664 case QEMU_OPTION_enable_kvm:
3665 olist = qemu_find_opts("machine");
3666 qemu_opts_parse(olist, "accel=kvm", 0);
3667 break;
3668 case QEMU_OPTION_machine:
3669 olist = qemu_find_opts("machine");
3670 opts = qemu_opts_parse(olist, optarg, 1);
3671 if (!opts) {
3672 exit(1);
3674 optarg = qemu_opt_get(opts, "type");
3675 if (optarg) {
3676 machine_class = machine_parse(optarg);
3678 break;
3679 case QEMU_OPTION_no_kvm:
3680 olist = qemu_find_opts("machine");
3681 qemu_opts_parse(olist, "accel=tcg", 0);
3682 break;
3683 case QEMU_OPTION_no_kvm_pit: {
3684 fprintf(stderr, "Warning: KVM PIT can no longer be disabled "
3685 "separately.\n");
3686 break;
3688 case QEMU_OPTION_no_kvm_pit_reinjection: {
3689 static GlobalProperty kvm_pit_lost_tick_policy[] = {
3691 .driver = "kvm-pit",
3692 .property = "lost_tick_policy",
3693 .value = "discard",
3695 { /* end of list */ }
3698 fprintf(stderr, "Warning: option deprecated, use "
3699 "lost_tick_policy property of kvm-pit instead.\n");
3700 qdev_prop_register_global_list(kvm_pit_lost_tick_policy);
3701 break;
3703 case QEMU_OPTION_usb:
3704 olist = qemu_find_opts("machine");
3705 qemu_opts_parse(olist, "usb=on", 0);
3706 break;
3707 case QEMU_OPTION_usbdevice:
3708 olist = qemu_find_opts("machine");
3709 qemu_opts_parse(olist, "usb=on", 0);
3710 add_device_config(DEV_USB, optarg);
3711 break;
3712 case QEMU_OPTION_device:
3713 if (!qemu_opts_parse(qemu_find_opts("device"), optarg, 1)) {
3714 exit(1);
3716 break;
3717 case QEMU_OPTION_smp:
3718 if (!qemu_opts_parse(qemu_find_opts("smp-opts"), optarg, 1)) {
3719 exit(1);
3721 break;
3722 case QEMU_OPTION_vnc:
3723 #ifdef CONFIG_VNC
3724 display_remote++;
3725 vnc_display = optarg;
3726 #else
3727 fprintf(stderr, "VNC support is disabled\n");
3728 exit(1);
3729 #endif
3730 break;
3731 case QEMU_OPTION_no_acpi:
3732 acpi_enabled = 0;
3733 break;
3734 case QEMU_OPTION_no_hpet:
3735 no_hpet = 1;
3736 break;
3737 case QEMU_OPTION_balloon:
3738 if (balloon_parse(optarg) < 0) {
3739 fprintf(stderr, "Unknown -balloon argument %s\n", optarg);
3740 exit(1);
3742 break;
3743 case QEMU_OPTION_no_reboot:
3744 no_reboot = 1;
3745 break;
3746 case QEMU_OPTION_no_shutdown:
3747 no_shutdown = 1;
3748 break;
3749 case QEMU_OPTION_show_cursor:
3750 cursor_hide = 0;
3751 break;
3752 case QEMU_OPTION_uuid:
3753 if(qemu_uuid_parse(optarg, qemu_uuid) < 0) {
3754 fprintf(stderr, "Fail to parse UUID string."
3755 " Wrong format.\n");
3756 exit(1);
3758 qemu_uuid_set = true;
3759 break;
3760 case QEMU_OPTION_option_rom:
3761 if (nb_option_roms >= MAX_OPTION_ROMS) {
3762 fprintf(stderr, "Too many option ROMs\n");
3763 exit(1);
3765 opts = qemu_opts_parse(qemu_find_opts("option-rom"), optarg, 1);
3766 if (!opts) {
3767 exit(1);
3769 option_rom[nb_option_roms].name = qemu_opt_get(opts, "romfile");
3770 option_rom[nb_option_roms].bootindex =
3771 qemu_opt_get_number(opts, "bootindex", -1);
3772 if (!option_rom[nb_option_roms].name) {
3773 fprintf(stderr, "Option ROM file is not specified\n");
3774 exit(1);
3776 nb_option_roms++;
3777 break;
3778 case QEMU_OPTION_semihosting:
3779 semihosting_enabled = 1;
3780 break;
3781 case QEMU_OPTION_tdf:
3782 fprintf(stderr, "Warning: user space PIT time drift fix "
3783 "is no longer supported.\n");
3784 break;
3785 case QEMU_OPTION_name:
3786 opts = qemu_opts_parse(qemu_find_opts("name"), optarg, 1);
3787 if (!opts) {
3788 exit(1);
3790 break;
3791 case QEMU_OPTION_prom_env:
3792 if (nb_prom_envs >= MAX_PROM_ENVS) {
3793 fprintf(stderr, "Too many prom variables\n");
3794 exit(1);
3796 prom_envs[nb_prom_envs] = optarg;
3797 nb_prom_envs++;
3798 break;
3799 case QEMU_OPTION_old_param:
3800 old_param = 1;
3801 break;
3802 case QEMU_OPTION_clock:
3803 /* Clock options no longer exist. Keep this option for
3804 * backward compatibility.
3806 break;
3807 case QEMU_OPTION_startdate:
3808 configure_rtc_date_offset(optarg, 1);
3809 break;
3810 case QEMU_OPTION_rtc:
3811 opts = qemu_opts_parse(qemu_find_opts("rtc"), optarg, 0);
3812 if (!opts) {
3813 exit(1);
3815 configure_rtc(opts);
3816 break;
3817 case QEMU_OPTION_tb_size:
3818 tcg_tb_size = strtol(optarg, NULL, 0);
3819 if (tcg_tb_size < 0) {
3820 tcg_tb_size = 0;
3822 break;
3823 case QEMU_OPTION_icount:
3824 icount_option = optarg;
3825 break;
3826 case QEMU_OPTION_incoming:
3827 incoming = optarg;
3828 runstate_set(RUN_STATE_INMIGRATE);
3829 break;
3830 case QEMU_OPTION_nodefaults:
3831 has_defaults = 0;
3832 break;
3833 case QEMU_OPTION_xen_domid:
3834 if (!(xen_available())) {
3835 printf("Option %s not supported for this target\n", popt->name);
3836 exit(1);
3838 xen_domid = atoi(optarg);
3839 break;
3840 case QEMU_OPTION_xen_create:
3841 if (!(xen_available())) {
3842 printf("Option %s not supported for this target\n", popt->name);
3843 exit(1);
3845 xen_mode = XEN_CREATE;
3846 break;
3847 case QEMU_OPTION_xen_attach:
3848 if (!(xen_available())) {
3849 printf("Option %s not supported for this target\n", popt->name);
3850 exit(1);
3852 xen_mode = XEN_ATTACH;
3853 break;
3854 case QEMU_OPTION_trace:
3856 opts = qemu_opts_parse(qemu_find_opts("trace"), optarg, 0);
3857 if (!opts) {
3858 exit(1);
3860 trace_events = qemu_opt_get(opts, "events");
3861 trace_file = qemu_opt_get(opts, "file");
3862 break;
3864 case QEMU_OPTION_readconfig:
3866 int ret = qemu_read_config_file(optarg);
3867 if (ret < 0) {
3868 fprintf(stderr, "read config %s: %s\n", optarg,
3869 strerror(-ret));
3870 exit(1);
3872 break;
3874 case QEMU_OPTION_spice:
3875 olist = qemu_find_opts("spice");
3876 if (!olist) {
3877 fprintf(stderr, "spice is not supported by this qemu build.\n");
3878 exit(1);
3880 opts = qemu_opts_parse(olist, optarg, 0);
3881 if (!opts) {
3882 exit(1);
3884 display_remote++;
3885 break;
3886 case QEMU_OPTION_writeconfig:
3888 FILE *fp;
3889 if (strcmp(optarg, "-") == 0) {
3890 fp = stdout;
3891 } else {
3892 fp = fopen(optarg, "w");
3893 if (fp == NULL) {
3894 fprintf(stderr, "open %s: %s\n", optarg, strerror(errno));
3895 exit(1);
3898 qemu_config_write(fp);
3899 if (fp != stdout) {
3900 fclose(fp);
3902 break;
3904 case QEMU_OPTION_qtest:
3905 qtest_chrdev = optarg;
3906 break;
3907 case QEMU_OPTION_qtest_log:
3908 qtest_log = optarg;
3909 break;
3910 case QEMU_OPTION_sandbox:
3911 opts = qemu_opts_parse(qemu_find_opts("sandbox"), optarg, 1);
3912 if (!opts) {
3913 exit(1);
3915 break;
3916 case QEMU_OPTION_add_fd:
3917 #ifndef _WIN32
3918 opts = qemu_opts_parse(qemu_find_opts("add-fd"), optarg, 0);
3919 if (!opts) {
3920 exit(1);
3922 #else
3923 error_report("File descriptor passing is disabled on this "
3924 "platform");
3925 exit(1);
3926 #endif
3927 break;
3928 case QEMU_OPTION_object:
3929 opts = qemu_opts_parse(qemu_find_opts("object"), optarg, 1);
3930 if (!opts) {
3931 exit(1);
3933 break;
3934 case QEMU_OPTION_realtime:
3935 opts = qemu_opts_parse(qemu_find_opts("realtime"), optarg, 0);
3936 if (!opts) {
3937 exit(1);
3939 configure_realtime(opts);
3940 break;
3941 case QEMU_OPTION_msg:
3942 opts = qemu_opts_parse(qemu_find_opts("msg"), optarg, 0);
3943 if (!opts) {
3944 exit(1);
3946 configure_msg(opts);
3947 break;
3948 case QEMU_OPTION_dump_vmstate:
3949 vmstate_dump_file = fopen(optarg, "w");
3950 if (vmstate_dump_file == NULL) {
3951 fprintf(stderr, "open %s: %s\n", optarg, strerror(errno));
3952 exit(1);
3954 break;
3955 default:
3956 os_parse_cmd_args(popt->index, optarg);
3960 loc_set_none();
3962 os_daemonize();
3964 if (qemu_init_main_loop()) {
3965 fprintf(stderr, "qemu_init_main_loop failed\n");
3966 exit(1);
3969 if (qemu_opts_foreach(qemu_find_opts("sandbox"), parse_sandbox, NULL, 0)) {
3970 exit(1);
3973 if (qemu_opts_foreach(qemu_find_opts("name"), parse_name, NULL, 1)) {
3974 exit(1);
3977 #ifndef _WIN32
3978 if (qemu_opts_foreach(qemu_find_opts("add-fd"), parse_add_fd, NULL, 1)) {
3979 exit(1);
3982 if (qemu_opts_foreach(qemu_find_opts("add-fd"), cleanup_add_fd, NULL, 1)) {
3983 exit(1);
3985 #endif
3987 if (machine_class == NULL) {
3988 fprintf(stderr, "No machine specified, and there is no default.\n"
3989 "Use -machine help to list supported machines!\n");
3990 exit(1);
3993 cpu_exec_init_all();
3995 current_machine = MACHINE(object_new(object_class_get_name(
3996 OBJECT_CLASS(machine_class))));
3997 object_property_add_child(object_get_root(), "machine",
3998 OBJECT(current_machine), &error_abort);
4000 if (machine_class->hw_version) {
4001 qemu_set_version(machine_class->hw_version);
4004 if (qemu_opts_foreach(qemu_find_opts("object"),
4005 object_create, NULL, 0) != 0) {
4006 exit(1);
4009 /* Init CPU def lists, based on config
4010 * - Must be called after all the qemu_read_config_file() calls
4011 * - Must be called before list_cpus()
4012 * - Must be called before machine->init()
4014 cpudef_init();
4016 if (cpu_model && is_help_option(cpu_model)) {
4017 list_cpus(stdout, &fprintf, cpu_model);
4018 exit(0);
4021 /* Open the logfile at this point, if necessary. We can't open the logfile
4022 * when encountering either of the logging options (-d or -D) because the
4023 * other one may be encountered later on the command line, changing the
4024 * location or level of logging.
4026 if (log_mask) {
4027 int mask;
4028 if (log_file) {
4029 qemu_set_log_filename(log_file);
4032 mask = qemu_str_to_log_mask(log_mask);
4033 if (!mask) {
4034 qemu_print_log_usage(stdout);
4035 exit(1);
4037 qemu_set_log(mask);
4040 if (!is_daemonized()) {
4041 if (!trace_init_backends(trace_events, trace_file)) {
4042 exit(1);
4046 /* If no data_dir is specified then try to find it relative to the
4047 executable path. */
4048 if (data_dir_idx < ARRAY_SIZE(data_dir)) {
4049 data_dir[data_dir_idx] = os_find_datadir();
4050 if (data_dir[data_dir_idx] != NULL) {
4051 data_dir_idx++;
4054 /* If all else fails use the install path specified when building. */
4055 if (data_dir_idx < ARRAY_SIZE(data_dir)) {
4056 data_dir[data_dir_idx++] = CONFIG_QEMU_DATADIR;
4059 smp_parse(qemu_opts_find(qemu_find_opts("smp-opts"), NULL));
4061 machine_class->max_cpus = machine_class->max_cpus ?: 1; /* Default to UP */
4062 if (smp_cpus > machine_class->max_cpus) {
4063 fprintf(stderr, "Number of SMP cpus requested (%d), exceeds max cpus "
4064 "supported by machine `%s' (%d)\n", smp_cpus,
4065 machine_class->name, machine_class->max_cpus);
4066 exit(1);
4070 * Get the default machine options from the machine if it is not already
4071 * specified either by the configuration file or by the command line.
4073 if (machine_class->default_machine_opts) {
4074 qemu_opts_set_defaults(qemu_find_opts("machine"),
4075 machine_class->default_machine_opts, 0);
4078 qemu_opts_foreach(qemu_find_opts("device"), default_driver_check, NULL, 0);
4079 qemu_opts_foreach(qemu_find_opts("global"), default_driver_check, NULL, 0);
4081 if (!vga_model && !default_vga) {
4082 vga_interface_type = VGA_DEVICE;
4084 if (!has_defaults || machine_class->no_serial) {
4085 default_serial = 0;
4087 if (!has_defaults || machine_class->no_parallel) {
4088 default_parallel = 0;
4090 if (!has_defaults || !machine_class->use_virtcon) {
4091 default_virtcon = 0;
4093 if (!has_defaults || !machine_class->use_sclp) {
4094 default_sclp = 0;
4096 if (!has_defaults || machine_class->no_floppy) {
4097 default_floppy = 0;
4099 if (!has_defaults || machine_class->no_cdrom) {
4100 default_cdrom = 0;
4102 if (!has_defaults || machine_class->no_sdcard) {
4103 default_sdcard = 0;
4105 if (!has_defaults) {
4106 default_monitor = 0;
4107 default_net = 0;
4108 default_vga = 0;
4111 if (is_daemonized()) {
4112 /* According to documentation and historically, -nographic redirects
4113 * serial port, parallel port and monitor to stdio, which does not work
4114 * with -daemonize. We can redirect these to null instead, but since
4115 * -nographic is legacy, let's just error out.
4116 * We disallow -nographic only if all other ports are not redirected
4117 * explicitly, to not break existing legacy setups which uses
4118 * -nographic _and_ redirects all ports explicitly - this is valid
4119 * usage, -nographic is just a no-op in this case.
4121 if (display_type == DT_NOGRAPHIC
4122 && (default_parallel || default_serial
4123 || default_monitor || default_virtcon)) {
4124 fprintf(stderr, "-nographic can not be used with -daemonize\n");
4125 exit(1);
4127 #ifdef CONFIG_CURSES
4128 if (display_type == DT_CURSES) {
4129 fprintf(stderr, "curses display can not be used with -daemonize\n");
4130 exit(1);
4132 #endif
4135 if (display_type == DT_NOGRAPHIC) {
4136 if (default_parallel)
4137 add_device_config(DEV_PARALLEL, "null");
4138 if (default_serial && default_monitor) {
4139 add_device_config(DEV_SERIAL, "mon:stdio");
4140 } else if (default_virtcon && default_monitor) {
4141 add_device_config(DEV_VIRTCON, "mon:stdio");
4142 } else if (default_sclp && default_monitor) {
4143 add_device_config(DEV_SCLP, "mon:stdio");
4144 } else {
4145 if (default_serial)
4146 add_device_config(DEV_SERIAL, "stdio");
4147 if (default_virtcon)
4148 add_device_config(DEV_VIRTCON, "stdio");
4149 if (default_sclp) {
4150 add_device_config(DEV_SCLP, "stdio");
4152 if (default_monitor)
4153 monitor_parse("stdio", "readline");
4155 } else {
4156 if (default_serial)
4157 add_device_config(DEV_SERIAL, "vc:80Cx24C");
4158 if (default_parallel)
4159 add_device_config(DEV_PARALLEL, "vc:80Cx24C");
4160 if (default_monitor)
4161 monitor_parse("vc:80Cx24C", "readline");
4162 if (default_virtcon)
4163 add_device_config(DEV_VIRTCON, "vc:80Cx24C");
4164 if (default_sclp) {
4165 add_device_config(DEV_SCLP, "vc:80Cx24C");
4169 if (display_type == DT_DEFAULT && !display_remote) {
4170 #if defined(CONFIG_GTK)
4171 display_type = DT_GTK;
4172 #elif defined(CONFIG_SDL) || defined(CONFIG_COCOA)
4173 display_type = DT_SDL;
4174 #elif defined(CONFIG_VNC)
4175 vnc_display = "localhost:0,to=99";
4176 show_vnc_port = 1;
4177 #else
4178 display_type = DT_NONE;
4179 #endif
4182 if ((no_frame || alt_grab || ctrl_grab) && display_type != DT_SDL) {
4183 fprintf(stderr, "-no-frame, -alt-grab and -ctrl-grab are only valid "
4184 "for SDL, ignoring option\n");
4186 if (no_quit && (display_type != DT_GTK && display_type != DT_SDL)) {
4187 fprintf(stderr, "-no-quit is only valid for GTK and SDL, "
4188 "ignoring option\n");
4191 #if defined(CONFIG_GTK)
4192 if (display_type == DT_GTK) {
4193 early_gtk_display_init();
4195 #endif
4197 socket_init();
4199 if (qemu_opts_foreach(qemu_find_opts("chardev"), chardev_init_func, NULL, 1) != 0)
4200 exit(1);
4201 #ifdef CONFIG_VIRTFS
4202 if (qemu_opts_foreach(qemu_find_opts("fsdev"), fsdev_init_func, NULL, 1) != 0) {
4203 exit(1);
4205 #endif
4207 if (pid_file && qemu_create_pidfile(pid_file) != 0) {
4208 os_pidfile_error();
4209 exit(1);
4212 /* store value for the future use */
4213 qemu_opt_set_number(qemu_find_opts_singleton("memory"), "size", ram_size);
4215 if (qemu_opts_foreach(qemu_find_opts("device"), device_help_func, NULL, 0)
4216 != 0) {
4217 exit(0);
4220 machine_opts = qemu_get_machine_opts();
4221 if (qemu_opt_foreach(machine_opts, object_set_property, current_machine,
4222 1) < 0) {
4223 object_unref(OBJECT(current_machine));
4224 exit(1);
4227 configure_accelerator(machine_class);
4229 if (qtest_chrdev) {
4230 Error *local_err = NULL;
4231 qtest_init(qtest_chrdev, qtest_log, &local_err);
4232 if (local_err) {
4233 error_report("%s", error_get_pretty(local_err));
4234 error_free(local_err);
4235 exit(1);
4239 machine_opts = qemu_get_machine_opts();
4240 kernel_filename = qemu_opt_get(machine_opts, "kernel");
4241 initrd_filename = qemu_opt_get(machine_opts, "initrd");
4242 kernel_cmdline = qemu_opt_get(machine_opts, "append");
4243 bios_name = qemu_opt_get(machine_opts, "firmware");
4245 boot_order = machine_class->default_boot_order;
4246 opts = qemu_opts_find(qemu_find_opts("boot-opts"), NULL);
4247 if (opts) {
4248 char *normal_boot_order;
4249 const char *order, *once;
4251 order = qemu_opt_get(opts, "order");
4252 if (order) {
4253 validate_bootdevices(order);
4254 boot_order = order;
4257 once = qemu_opt_get(opts, "once");
4258 if (once) {
4259 validate_bootdevices(once);
4260 normal_boot_order = g_strdup(boot_order);
4261 boot_order = once;
4262 qemu_register_reset(restore_boot_order, normal_boot_order);
4265 boot_menu = qemu_opt_get_bool(opts, "menu", boot_menu);
4266 boot_strict = qemu_opt_get_bool(opts, "strict", false);
4269 if (!kernel_cmdline) {
4270 kernel_cmdline = "";
4271 current_machine->kernel_cmdline = (char *)kernel_cmdline;
4274 linux_boot = (kernel_filename != NULL);
4276 if (!linux_boot && *kernel_cmdline != '\0') {
4277 fprintf(stderr, "-append only allowed with -kernel option\n");
4278 exit(1);
4281 if (!linux_boot && initrd_filename != NULL) {
4282 fprintf(stderr, "-initrd only allowed with -kernel option\n");
4283 exit(1);
4286 if (!linux_boot && qemu_opt_get(machine_opts, "dtb")) {
4287 fprintf(stderr, "-dtb only allowed with -kernel option\n");
4288 exit(1);
4291 os_set_line_buffering();
4293 qemu_init_cpu_loop();
4294 qemu_mutex_lock_iothread();
4296 #ifdef CONFIG_SPICE
4297 /* spice needs the timers to be initialized by this point */
4298 qemu_spice_init();
4299 #endif
4301 if (icount_option && (kvm_enabled() || xen_enabled())) {
4302 fprintf(stderr, "-icount is not allowed with kvm or xen\n");
4303 exit(1);
4305 configure_icount(icount_option);
4307 /* clean up network at qemu process termination */
4308 atexit(&net_cleanup);
4310 if (net_init_clients() < 0) {
4311 exit(1);
4314 #ifdef CONFIG_TPM
4315 if (tpm_init() < 0) {
4316 exit(1);
4318 #endif
4320 /* init the bluetooth world */
4321 if (foreach_device_config(DEV_BT, bt_parse))
4322 exit(1);
4324 if (!xen_enabled()) {
4325 /* On 32-bit hosts, QEMU is limited by virtual address space */
4326 if (ram_size > (2047 << 20) && HOST_LONG_BITS == 32) {
4327 fprintf(stderr, "qemu: at most 2047 MB RAM can be simulated\n");
4328 exit(1);
4332 blk_mig_init();
4333 ram_mig_init();
4335 /* open the virtual block devices */
4336 if (snapshot)
4337 qemu_opts_foreach(qemu_find_opts("drive"), drive_enable_snapshot, NULL, 0);
4338 if (qemu_opts_foreach(qemu_find_opts("drive"), drive_init_func,
4339 &machine_class->block_default_type, 1) != 0) {
4340 exit(1);
4343 default_drive(default_cdrom, snapshot, machine_class->block_default_type, 2,
4344 CDROM_OPTS);
4345 default_drive(default_floppy, snapshot, IF_FLOPPY, 0, FD_OPTS);
4346 default_drive(default_sdcard, snapshot, IF_SD, 0, SD_OPTS);
4348 if (qemu_opts_foreach(qemu_find_opts("numa"), numa_init_func,
4349 NULL, 1) != 0) {
4350 exit(1);
4353 set_numa_nodes();
4355 if (qemu_opts_foreach(qemu_find_opts("mon"), mon_init_func, NULL, 1) != 0) {
4356 exit(1);
4359 if (foreach_device_config(DEV_SERIAL, serial_parse) < 0)
4360 exit(1);
4361 if (foreach_device_config(DEV_PARALLEL, parallel_parse) < 0)
4362 exit(1);
4363 if (foreach_device_config(DEV_VIRTCON, virtcon_parse) < 0)
4364 exit(1);
4365 if (foreach_device_config(DEV_SCLP, sclp_parse) < 0) {
4366 exit(1);
4368 if (foreach_device_config(DEV_DEBUGCON, debugcon_parse) < 0)
4369 exit(1);
4371 /* If no default VGA is requested, the default is "none". */
4372 if (default_vga) {
4373 if (cirrus_vga_available()) {
4374 vga_model = "cirrus";
4375 } else if (vga_available()) {
4376 vga_model = "std";
4379 if (vga_model) {
4380 select_vgahw(vga_model);
4383 if (watchdog) {
4384 i = select_watchdog(watchdog);
4385 if (i > 0)
4386 exit (i == 1 ? 1 : 0);
4389 if (machine_class->compat_props) {
4390 qdev_prop_register_global_list(machine_class->compat_props);
4392 qemu_add_globals();
4394 qdev_machine_init();
4396 current_machine->ram_size = ram_size;
4397 current_machine->maxram_size = maxram_size;
4398 current_machine->ram_slots = ram_slots;
4399 current_machine->boot_order = boot_order;
4400 current_machine->cpu_model = cpu_model;
4402 machine_class->init(current_machine);
4404 audio_init();
4406 cpu_synchronize_all_post_init();
4408 set_numa_modes();
4410 /* init USB devices */
4411 if (usb_enabled(false)) {
4412 if (foreach_device_config(DEV_USB, usb_parse) < 0)
4413 exit(1);
4416 /* init generic devices */
4417 if (qemu_opts_foreach(qemu_find_opts("device"), device_init_func, NULL, 1) != 0)
4418 exit(1);
4420 net_check_clients();
4422 ds = init_displaystate();
4424 /* init local displays */
4425 switch (display_type) {
4426 case DT_NOGRAPHIC:
4427 (void)ds; /* avoid warning if no display is configured */
4428 break;
4429 #if defined(CONFIG_CURSES)
4430 case DT_CURSES:
4431 curses_display_init(ds, full_screen);
4432 break;
4433 #endif
4434 #if defined(CONFIG_SDL)
4435 case DT_SDL:
4436 sdl_display_init(ds, full_screen, no_frame);
4437 break;
4438 #elif defined(CONFIG_COCOA)
4439 case DT_SDL:
4440 cocoa_display_init(ds, full_screen);
4441 break;
4442 #endif
4443 #if defined(CONFIG_GTK)
4444 case DT_GTK:
4445 gtk_display_init(ds, full_screen, grab_on_hover);
4446 break;
4447 #endif
4448 default:
4449 break;
4452 /* must be after terminal init, SDL library changes signal handlers */
4453 os_setup_signal_handling();
4455 #ifdef CONFIG_VNC
4456 /* init remote displays */
4457 if (vnc_display) {
4458 Error *local_err = NULL;
4459 vnc_display_init(ds);
4460 vnc_display_open(ds, vnc_display, &local_err);
4461 if (local_err != NULL) {
4462 error_report("Failed to start VNC server on `%s': %s",
4463 vnc_display, error_get_pretty(local_err));
4464 error_free(local_err);
4465 exit(1);
4468 if (show_vnc_port) {
4469 printf("VNC server running on `%s'\n", vnc_display_local_addr(ds));
4472 #endif
4473 #ifdef CONFIG_SPICE
4474 if (using_spice) {
4475 qemu_spice_display_init();
4477 #endif
4479 if (foreach_device_config(DEV_GDB, gdbserver_start) < 0) {
4480 exit(1);
4483 qdev_machine_creation_done();
4485 if (rom_load_all() != 0) {
4486 fprintf(stderr, "rom loading failed\n");
4487 exit(1);
4490 /* TODO: once all bus devices are qdevified, this should be done
4491 * when bus is created by qdev.c */
4492 qemu_register_reset(qbus_reset_all_fn, sysbus_get_default());
4493 qemu_run_machine_init_done_notifiers();
4495 /* Done notifiers can load ROMs */
4496 rom_load_done();
4498 qemu_system_reset(VMRESET_SILENT);
4499 if (loadvm) {
4500 if (load_vmstate(loadvm) < 0) {
4501 autostart = 0;
4505 qdev_prop_check_global();
4506 if (vmstate_dump_file) {
4507 /* dump and exit */
4508 dump_vmstate_json_to_file(vmstate_dump_file);
4509 return 0;
4512 if (incoming) {
4513 Error *local_err = NULL;
4514 qemu_start_incoming_migration(incoming, &local_err);
4515 if (local_err) {
4516 error_report("-incoming %s: %s", incoming,
4517 error_get_pretty(local_err));
4518 error_free(local_err);
4519 exit(1);
4521 } else if (autostart) {
4522 vm_start();
4525 os_setup_post();
4527 if (is_daemonized()) {
4528 if (!trace_init_backends(trace_events, trace_file)) {
4529 exit(1);
4533 main_loop();
4534 bdrv_close_all();
4535 pause_all_vcpus();
4536 res_free();
4537 #ifdef CONFIG_TPM
4538 tpm_cleanup();
4539 #endif
4541 return 0;