megasas: add MegaRAID SAS 2108 emulation
[qemu/ar7.git] / vl.c
blobf6b35469428f46660a4a418a9029e77247988d5e
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 "sysemu/accel.h"
65 #include "hw/usb.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 "sysemu/blockdev.h"
86 #include "hw/block/block.h"
87 #include "migration/block.h"
88 #include "sysemu/tpm.h"
89 #include "sysemu/dma.h"
90 #include "audio/audio.h"
91 #include "migration/migration.h"
92 #include "sysemu/kvm.h"
93 #include "qapi/qmp/qjson.h"
94 #include "qemu/option.h"
95 #include "qemu/config-file.h"
96 #include "qemu-options.h"
97 #include "qmp-commands.h"
98 #include "qemu/main-loop.h"
99 #ifdef CONFIG_VIRTFS
100 #include "fsdev/qemu-fsdev.h"
101 #endif
102 #include "sysemu/qtest.h"
104 #include "disas/disas.h"
107 #include "slirp/libslirp.h"
109 #include "trace.h"
110 #include "trace/control.h"
111 #include "qemu/queue.h"
112 #include "sysemu/cpus.h"
113 #include "sysemu/arch_init.h"
114 #include "qemu/osdep.h"
116 #include "ui/qemu-spice.h"
117 #include "qapi/string-input-visitor.h"
118 #include "qapi/opts-visitor.h"
119 #include "qom/object_interfaces.h"
120 #include "qapi-event.h"
122 #define DEFAULT_RAM_SIZE 128
124 #define MAX_VIRTIO_CONSOLES 1
125 #define MAX_SCLP_CONSOLES 1
127 static const char *data_dir[16];
128 static int data_dir_idx;
129 const char *bios_name = NULL;
130 enum vga_retrace_method vga_retrace_method = VGA_RETRACE_DUMB;
131 DisplayType display_type = DT_DEFAULT;
132 static int display_remote;
133 const char* keyboard_layout = NULL;
134 ram_addr_t ram_size;
135 const char *mem_path = NULL;
136 int mem_prealloc = 0; /* force preallocation of physical target memory */
137 bool enable_mlock = false;
138 int nb_nics;
139 NICInfo nd_table[MAX_NICS];
140 int autostart;
141 static int rtc_utc = 1;
142 static int rtc_date_offset = -1; /* -1 means no change */
143 QEMUClockType rtc_clock;
144 int vga_interface_type = VGA_NONE;
145 static int full_screen = 0;
146 static int no_frame = 0;
147 int no_quit = 0;
148 #ifdef CONFIG_GTK
149 static bool grab_on_hover;
150 #endif
151 CharDriverState *serial_hds[MAX_SERIAL_PORTS];
152 CharDriverState *parallel_hds[MAX_PARALLEL_PORTS];
153 CharDriverState *virtcon_hds[MAX_VIRTIO_CONSOLES];
154 CharDriverState *sclp_hds[MAX_SCLP_CONSOLES];
155 int win2k_install_hack = 0;
156 int singlestep = 0;
157 int smp_cpus = 1;
158 int max_cpus = 0;
159 int smp_cores = 1;
160 int smp_threads = 1;
161 #ifdef CONFIG_VNC
162 const char *vnc_display;
163 #endif
164 int acpi_enabled = 1;
165 int no_hpet = 0;
166 int fd_bootchk = 1;
167 static int no_reboot;
168 int no_shutdown = 0;
169 int cursor_hide = 1;
170 int graphic_rotate = 0;
171 const char *watchdog;
172 QEMUOptionRom option_rom[MAX_OPTION_ROMS];
173 int nb_option_roms;
174 int semihosting_enabled = 0;
175 int old_param = 0;
176 const char *qemu_name;
177 int alt_grab = 0;
178 int ctrl_grab = 0;
179 unsigned int nb_prom_envs = 0;
180 const char *prom_envs[MAX_PROM_ENVS];
181 int boot_menu;
182 bool boot_strict;
183 uint8_t *boot_splash_filedata;
184 size_t boot_splash_filedata_size;
185 uint8_t qemu_extra_params_fw[2];
187 int icount_align_option;
189 int nb_numa_nodes;
190 int max_numa_nodeid;
191 NodeInfo numa_info[MAX_NODES];
193 uint8_t qemu_uuid[16];
194 bool qemu_uuid_set;
196 static QEMUBootSetHandler *boot_set_handler;
197 static void *boot_set_opaque;
199 static NotifierList exit_notifiers =
200 NOTIFIER_LIST_INITIALIZER(exit_notifiers);
202 static NotifierList machine_init_done_notifiers =
203 NOTIFIER_LIST_INITIALIZER(machine_init_done_notifiers);
205 bool xen_allowed;
206 uint32_t xen_domid;
207 enum xen_mode xen_mode = XEN_EMULATE;
209 static int has_defaults = 1;
210 static int default_serial = 1;
211 static int default_parallel = 1;
212 static int default_virtcon = 1;
213 static int default_sclp = 1;
214 static int default_monitor = 1;
215 static int default_floppy = 1;
216 static int default_cdrom = 1;
217 static int default_sdcard = 1;
218 static int default_vga = 1;
220 static struct {
221 const char *driver;
222 int *flag;
223 } default_list[] = {
224 { .driver = "isa-serial", .flag = &default_serial },
225 { .driver = "isa-parallel", .flag = &default_parallel },
226 { .driver = "isa-fdc", .flag = &default_floppy },
227 { .driver = "ide-cd", .flag = &default_cdrom },
228 { .driver = "ide-hd", .flag = &default_cdrom },
229 { .driver = "ide-drive", .flag = &default_cdrom },
230 { .driver = "scsi-cd", .flag = &default_cdrom },
231 { .driver = "virtio-serial-pci", .flag = &default_virtcon },
232 { .driver = "virtio-serial-s390", .flag = &default_virtcon },
233 { .driver = "virtio-serial", .flag = &default_virtcon },
234 { .driver = "VGA", .flag = &default_vga },
235 { .driver = "isa-vga", .flag = &default_vga },
236 { .driver = "cirrus-vga", .flag = &default_vga },
237 { .driver = "isa-cirrus-vga", .flag = &default_vga },
238 { .driver = "vmware-svga", .flag = &default_vga },
239 { .driver = "qxl-vga", .flag = &default_vga },
242 static QemuOptsList qemu_rtc_opts = {
243 .name = "rtc",
244 .head = QTAILQ_HEAD_INITIALIZER(qemu_rtc_opts.head),
245 .desc = {
247 .name = "base",
248 .type = QEMU_OPT_STRING,
250 .name = "clock",
251 .type = QEMU_OPT_STRING,
253 .name = "driftfix",
254 .type = QEMU_OPT_STRING,
256 { /* end of list */ }
260 static QemuOptsList qemu_sandbox_opts = {
261 .name = "sandbox",
262 .implied_opt_name = "enable",
263 .head = QTAILQ_HEAD_INITIALIZER(qemu_sandbox_opts.head),
264 .desc = {
266 .name = "enable",
267 .type = QEMU_OPT_BOOL,
269 { /* end of list */ }
273 static QemuOptsList qemu_trace_opts = {
274 .name = "trace",
275 .implied_opt_name = "trace",
276 .head = QTAILQ_HEAD_INITIALIZER(qemu_trace_opts.head),
277 .desc = {
279 .name = "events",
280 .type = QEMU_OPT_STRING,
282 .name = "file",
283 .type = QEMU_OPT_STRING,
285 { /* end of list */ }
289 static QemuOptsList qemu_option_rom_opts = {
290 .name = "option-rom",
291 .implied_opt_name = "romfile",
292 .head = QTAILQ_HEAD_INITIALIZER(qemu_option_rom_opts.head),
293 .desc = {
295 .name = "bootindex",
296 .type = QEMU_OPT_NUMBER,
297 }, {
298 .name = "romfile",
299 .type = QEMU_OPT_STRING,
301 { /* end of list */ }
305 static QemuOptsList qemu_machine_opts = {
306 .name = "machine",
307 .implied_opt_name = "type",
308 .merge_lists = true,
309 .head = QTAILQ_HEAD_INITIALIZER(qemu_machine_opts.head),
310 .desc = {
312 .name = "type",
313 .type = QEMU_OPT_STRING,
314 .help = "emulated machine"
315 }, {
316 .name = "accel",
317 .type = QEMU_OPT_STRING,
318 .help = "accelerator list",
319 }, {
320 .name = "kernel_irqchip",
321 .type = QEMU_OPT_BOOL,
322 .help = "use KVM in-kernel irqchip",
323 }, {
324 .name = "kvm_shadow_mem",
325 .type = QEMU_OPT_SIZE,
326 .help = "KVM shadow MMU size",
327 }, {
328 .name = "kernel",
329 .type = QEMU_OPT_STRING,
330 .help = "Linux kernel image file",
331 }, {
332 .name = "initrd",
333 .type = QEMU_OPT_STRING,
334 .help = "Linux initial ramdisk file",
335 }, {
336 .name = "append",
337 .type = QEMU_OPT_STRING,
338 .help = "Linux kernel command line",
339 }, {
340 .name = "dtb",
341 .type = QEMU_OPT_STRING,
342 .help = "Linux kernel device tree file",
343 }, {
344 .name = "dumpdtb",
345 .type = QEMU_OPT_STRING,
346 .help = "Dump current dtb to a file and quit",
347 }, {
348 .name = "phandle_start",
349 .type = QEMU_OPT_NUMBER,
350 .help = "The first phandle ID we may generate dynamically",
351 }, {
352 .name = "dt_compatible",
353 .type = QEMU_OPT_STRING,
354 .help = "Overrides the \"compatible\" property of the dt root node",
355 }, {
356 .name = "dump-guest-core",
357 .type = QEMU_OPT_BOOL,
358 .help = "Include guest memory in a core dump",
359 }, {
360 .name = "mem-merge",
361 .type = QEMU_OPT_BOOL,
362 .help = "enable/disable memory merge support",
364 .name = "usb",
365 .type = QEMU_OPT_BOOL,
366 .help = "Set on/off to enable/disable usb",
368 .name = "firmware",
369 .type = QEMU_OPT_STRING,
370 .help = "firmware image",
372 .name = "kvm-type",
373 .type = QEMU_OPT_STRING,
374 .help = "Specifies the KVM virtualization mode (HV, PR)",
376 .name = PC_MACHINE_MAX_RAM_BELOW_4G,
377 .type = QEMU_OPT_SIZE,
378 .help = "maximum ram below the 4G boundary (32bit boundary)",
380 .name = "iommu",
381 .type = QEMU_OPT_BOOL,
382 .help = "Set on/off to enable/disable Intel IOMMU (VT-d)",
384 { /* End of list */ }
388 static QemuOptsList qemu_boot_opts = {
389 .name = "boot-opts",
390 .implied_opt_name = "order",
391 .merge_lists = true,
392 .head = QTAILQ_HEAD_INITIALIZER(qemu_boot_opts.head),
393 .desc = {
395 .name = "order",
396 .type = QEMU_OPT_STRING,
397 }, {
398 .name = "once",
399 .type = QEMU_OPT_STRING,
400 }, {
401 .name = "menu",
402 .type = QEMU_OPT_BOOL,
403 }, {
404 .name = "splash",
405 .type = QEMU_OPT_STRING,
406 }, {
407 .name = "splash-time",
408 .type = QEMU_OPT_STRING,
409 }, {
410 .name = "reboot-timeout",
411 .type = QEMU_OPT_STRING,
412 }, {
413 .name = "strict",
414 .type = QEMU_OPT_BOOL,
416 { /*End of list */ }
420 static QemuOptsList qemu_add_fd_opts = {
421 .name = "add-fd",
422 .head = QTAILQ_HEAD_INITIALIZER(qemu_add_fd_opts.head),
423 .desc = {
425 .name = "fd",
426 .type = QEMU_OPT_NUMBER,
427 .help = "file descriptor of which a duplicate is added to fd set",
429 .name = "set",
430 .type = QEMU_OPT_NUMBER,
431 .help = "ID of the fd set to add fd to",
433 .name = "opaque",
434 .type = QEMU_OPT_STRING,
435 .help = "free-form string used to describe fd",
437 { /* end of list */ }
441 static QemuOptsList qemu_object_opts = {
442 .name = "object",
443 .implied_opt_name = "qom-type",
444 .head = QTAILQ_HEAD_INITIALIZER(qemu_object_opts.head),
445 .desc = {
450 static QemuOptsList qemu_tpmdev_opts = {
451 .name = "tpmdev",
452 .implied_opt_name = "type",
453 .head = QTAILQ_HEAD_INITIALIZER(qemu_tpmdev_opts.head),
454 .desc = {
455 /* options are defined in the TPM backends */
456 { /* end of list */ }
460 static QemuOptsList qemu_realtime_opts = {
461 .name = "realtime",
462 .head = QTAILQ_HEAD_INITIALIZER(qemu_realtime_opts.head),
463 .desc = {
465 .name = "mlock",
466 .type = QEMU_OPT_BOOL,
468 { /* end of list */ }
472 static QemuOptsList qemu_msg_opts = {
473 .name = "msg",
474 .head = QTAILQ_HEAD_INITIALIZER(qemu_msg_opts.head),
475 .desc = {
477 .name = "timestamp",
478 .type = QEMU_OPT_BOOL,
480 { /* end of list */ }
484 static QemuOptsList qemu_name_opts = {
485 .name = "name",
486 .implied_opt_name = "guest",
487 .merge_lists = true,
488 .head = QTAILQ_HEAD_INITIALIZER(qemu_name_opts.head),
489 .desc = {
491 .name = "guest",
492 .type = QEMU_OPT_STRING,
493 .help = "Sets the name of the guest.\n"
494 "This name will be displayed in the SDL window caption.\n"
495 "The name will also be used for the VNC server",
496 }, {
497 .name = "process",
498 .type = QEMU_OPT_STRING,
499 .help = "Sets the name of the QEMU process, as shown in top etc",
500 }, {
501 .name = "debug-threads",
502 .type = QEMU_OPT_BOOL,
503 .help = "When enabled, name the individual threads; defaults off.\n"
504 "NOTE: The thread names are for debugging and not a\n"
505 "stable API.",
507 { /* End of list */ }
511 static QemuOptsList qemu_mem_opts = {
512 .name = "memory",
513 .implied_opt_name = "size",
514 .head = QTAILQ_HEAD_INITIALIZER(qemu_mem_opts.head),
515 .merge_lists = true,
516 .desc = {
518 .name = "size",
519 .type = QEMU_OPT_SIZE,
522 .name = "slots",
523 .type = QEMU_OPT_NUMBER,
526 .name = "maxmem",
527 .type = QEMU_OPT_SIZE,
529 { /* end of list */ }
533 static QemuOptsList qemu_icount_opts = {
534 .name = "icount",
535 .implied_opt_name = "shift",
536 .merge_lists = true,
537 .head = QTAILQ_HEAD_INITIALIZER(qemu_icount_opts.head),
538 .desc = {
540 .name = "shift",
541 .type = QEMU_OPT_STRING,
542 }, {
543 .name = "align",
544 .type = QEMU_OPT_BOOL,
546 { /* end of list */ }
551 * Get machine options
553 * Returns: machine options (never null).
555 QemuOpts *qemu_get_machine_opts(void)
557 return qemu_find_opts_singleton("machine");
560 const char *qemu_get_vm_name(void)
562 return qemu_name;
565 static void res_free(void)
567 if (boot_splash_filedata != NULL) {
568 g_free(boot_splash_filedata);
569 boot_splash_filedata = NULL;
573 static int default_driver_check(QemuOpts *opts, void *opaque)
575 const char *driver = qemu_opt_get(opts, "driver");
576 int i;
578 if (!driver)
579 return 0;
580 for (i = 0; i < ARRAY_SIZE(default_list); i++) {
581 if (strcmp(default_list[i].driver, driver) != 0)
582 continue;
583 *(default_list[i].flag) = 0;
585 return 0;
588 /***********************************************************/
589 /* QEMU state */
591 static RunState current_run_state = RUN_STATE_PRELAUNCH;
593 /* We use RUN_STATE_MAX but any invalid value will do */
594 static RunState vmstop_requested = RUN_STATE_MAX;
595 static QemuMutex vmstop_lock;
597 typedef struct {
598 RunState from;
599 RunState to;
600 } RunStateTransition;
602 static const RunStateTransition runstate_transitions_def[] = {
603 /* from -> to */
604 { RUN_STATE_DEBUG, RUN_STATE_RUNNING },
605 { RUN_STATE_DEBUG, RUN_STATE_FINISH_MIGRATE },
607 { RUN_STATE_INMIGRATE, RUN_STATE_RUNNING },
608 { RUN_STATE_INMIGRATE, RUN_STATE_PAUSED },
610 { RUN_STATE_INTERNAL_ERROR, RUN_STATE_PAUSED },
611 { RUN_STATE_INTERNAL_ERROR, RUN_STATE_FINISH_MIGRATE },
613 { RUN_STATE_IO_ERROR, RUN_STATE_RUNNING },
614 { RUN_STATE_IO_ERROR, RUN_STATE_FINISH_MIGRATE },
616 { RUN_STATE_PAUSED, RUN_STATE_RUNNING },
617 { RUN_STATE_PAUSED, RUN_STATE_FINISH_MIGRATE },
619 { RUN_STATE_POSTMIGRATE, RUN_STATE_RUNNING },
620 { RUN_STATE_POSTMIGRATE, RUN_STATE_FINISH_MIGRATE },
622 { RUN_STATE_PRELAUNCH, RUN_STATE_RUNNING },
623 { RUN_STATE_PRELAUNCH, RUN_STATE_FINISH_MIGRATE },
624 { RUN_STATE_PRELAUNCH, RUN_STATE_INMIGRATE },
626 { RUN_STATE_FINISH_MIGRATE, RUN_STATE_RUNNING },
627 { RUN_STATE_FINISH_MIGRATE, RUN_STATE_POSTMIGRATE },
629 { RUN_STATE_RESTORE_VM, RUN_STATE_RUNNING },
631 { RUN_STATE_RUNNING, RUN_STATE_DEBUG },
632 { RUN_STATE_RUNNING, RUN_STATE_INTERNAL_ERROR },
633 { RUN_STATE_RUNNING, RUN_STATE_IO_ERROR },
634 { RUN_STATE_RUNNING, RUN_STATE_PAUSED },
635 { RUN_STATE_RUNNING, RUN_STATE_FINISH_MIGRATE },
636 { RUN_STATE_RUNNING, RUN_STATE_RESTORE_VM },
637 { RUN_STATE_RUNNING, RUN_STATE_SAVE_VM },
638 { RUN_STATE_RUNNING, RUN_STATE_SHUTDOWN },
639 { RUN_STATE_RUNNING, RUN_STATE_WATCHDOG },
640 { RUN_STATE_RUNNING, RUN_STATE_GUEST_PANICKED },
642 { RUN_STATE_SAVE_VM, RUN_STATE_RUNNING },
644 { RUN_STATE_SHUTDOWN, RUN_STATE_PAUSED },
645 { RUN_STATE_SHUTDOWN, RUN_STATE_FINISH_MIGRATE },
647 { RUN_STATE_DEBUG, RUN_STATE_SUSPENDED },
648 { RUN_STATE_RUNNING, RUN_STATE_SUSPENDED },
649 { RUN_STATE_SUSPENDED, RUN_STATE_RUNNING },
650 { RUN_STATE_SUSPENDED, RUN_STATE_FINISH_MIGRATE },
652 { RUN_STATE_WATCHDOG, RUN_STATE_RUNNING },
653 { RUN_STATE_WATCHDOG, RUN_STATE_FINISH_MIGRATE },
655 { RUN_STATE_GUEST_PANICKED, RUN_STATE_RUNNING },
656 { RUN_STATE_GUEST_PANICKED, RUN_STATE_FINISH_MIGRATE },
658 { RUN_STATE_MAX, RUN_STATE_MAX },
661 static bool runstate_valid_transitions[RUN_STATE_MAX][RUN_STATE_MAX];
663 bool runstate_check(RunState state)
665 return current_run_state == state;
668 static void runstate_init(void)
670 const RunStateTransition *p;
672 memset(&runstate_valid_transitions, 0, sizeof(runstate_valid_transitions));
673 for (p = &runstate_transitions_def[0]; p->from != RUN_STATE_MAX; p++) {
674 runstate_valid_transitions[p->from][p->to] = true;
677 qemu_mutex_init(&vmstop_lock);
680 /* This function will abort() on invalid state transitions */
681 void runstate_set(RunState new_state)
683 assert(new_state < RUN_STATE_MAX);
685 if (!runstate_valid_transitions[current_run_state][new_state]) {
686 fprintf(stderr, "ERROR: invalid runstate transition: '%s' -> '%s'\n",
687 RunState_lookup[current_run_state],
688 RunState_lookup[new_state]);
689 abort();
691 trace_runstate_set(new_state);
692 current_run_state = new_state;
695 int runstate_is_running(void)
697 return runstate_check(RUN_STATE_RUNNING);
700 bool runstate_needs_reset(void)
702 return runstate_check(RUN_STATE_INTERNAL_ERROR) ||
703 runstate_check(RUN_STATE_SHUTDOWN);
706 StatusInfo *qmp_query_status(Error **errp)
708 StatusInfo *info = g_malloc0(sizeof(*info));
710 info->running = runstate_is_running();
711 info->singlestep = singlestep;
712 info->status = current_run_state;
714 return info;
717 static bool qemu_vmstop_requested(RunState *r)
719 qemu_mutex_lock(&vmstop_lock);
720 *r = vmstop_requested;
721 vmstop_requested = RUN_STATE_MAX;
722 qemu_mutex_unlock(&vmstop_lock);
723 return *r < RUN_STATE_MAX;
726 void qemu_system_vmstop_request_prepare(void)
728 qemu_mutex_lock(&vmstop_lock);
731 void qemu_system_vmstop_request(RunState state)
733 vmstop_requested = state;
734 qemu_mutex_unlock(&vmstop_lock);
735 qemu_notify_event();
738 void vm_start(void)
740 RunState requested;
742 qemu_vmstop_requested(&requested);
743 if (runstate_is_running() && requested == RUN_STATE_MAX) {
744 return;
747 /* Ensure that a STOP/RESUME pair of events is emitted if a
748 * vmstop request was pending. The BLOCK_IO_ERROR event, for
749 * example, according to documentation is always followed by
750 * the STOP event.
752 if (runstate_is_running()) {
753 qapi_event_send_stop(&error_abort);
754 } else {
755 cpu_enable_ticks();
756 runstate_set(RUN_STATE_RUNNING);
757 vm_state_notify(1, RUN_STATE_RUNNING);
758 resume_all_vcpus();
761 qapi_event_send_resume(&error_abort);
765 /***********************************************************/
766 /* real time host monotonic timer */
768 /***********************************************************/
769 /* host time/date access */
770 void qemu_get_timedate(struct tm *tm, int offset)
772 time_t ti;
774 time(&ti);
775 ti += offset;
776 if (rtc_date_offset == -1) {
777 if (rtc_utc)
778 gmtime_r(&ti, tm);
779 else
780 localtime_r(&ti, tm);
781 } else {
782 ti -= rtc_date_offset;
783 gmtime_r(&ti, tm);
787 int qemu_timedate_diff(struct tm *tm)
789 time_t seconds;
791 if (rtc_date_offset == -1)
792 if (rtc_utc)
793 seconds = mktimegm(tm);
794 else {
795 struct tm tmp = *tm;
796 tmp.tm_isdst = -1; /* use timezone to figure it out */
797 seconds = mktime(&tmp);
799 else
800 seconds = mktimegm(tm) + rtc_date_offset;
802 return seconds - time(NULL);
805 static void configure_rtc_date_offset(const char *startdate, int legacy)
807 time_t rtc_start_date;
808 struct tm tm;
810 if (!strcmp(startdate, "now") && legacy) {
811 rtc_date_offset = -1;
812 } else {
813 if (sscanf(startdate, "%d-%d-%dT%d:%d:%d",
814 &tm.tm_year,
815 &tm.tm_mon,
816 &tm.tm_mday,
817 &tm.tm_hour,
818 &tm.tm_min,
819 &tm.tm_sec) == 6) {
820 /* OK */
821 } else if (sscanf(startdate, "%d-%d-%d",
822 &tm.tm_year,
823 &tm.tm_mon,
824 &tm.tm_mday) == 3) {
825 tm.tm_hour = 0;
826 tm.tm_min = 0;
827 tm.tm_sec = 0;
828 } else {
829 goto date_fail;
831 tm.tm_year -= 1900;
832 tm.tm_mon--;
833 rtc_start_date = mktimegm(&tm);
834 if (rtc_start_date == -1) {
835 date_fail:
836 fprintf(stderr, "Invalid date format. Valid formats are:\n"
837 "'2006-06-17T16:01:21' or '2006-06-17'\n");
838 exit(1);
840 rtc_date_offset = time(NULL) - rtc_start_date;
844 static void configure_rtc(QemuOpts *opts)
846 const char *value;
848 value = qemu_opt_get(opts, "base");
849 if (value) {
850 if (!strcmp(value, "utc")) {
851 rtc_utc = 1;
852 } else if (!strcmp(value, "localtime")) {
853 rtc_utc = 0;
854 } else {
855 configure_rtc_date_offset(value, 0);
858 value = qemu_opt_get(opts, "clock");
859 if (value) {
860 if (!strcmp(value, "host")) {
861 rtc_clock = QEMU_CLOCK_HOST;
862 } else if (!strcmp(value, "rt")) {
863 rtc_clock = QEMU_CLOCK_REALTIME;
864 } else if (!strcmp(value, "vm")) {
865 rtc_clock = QEMU_CLOCK_VIRTUAL;
866 } else {
867 fprintf(stderr, "qemu: invalid option value '%s'\n", value);
868 exit(1);
871 value = qemu_opt_get(opts, "driftfix");
872 if (value) {
873 if (!strcmp(value, "slew")) {
874 static GlobalProperty slew_lost_ticks[] = {
876 .driver = "mc146818rtc",
877 .property = "lost_tick_policy",
878 .value = "slew",
880 { /* end of list */ }
883 qdev_prop_register_global_list(slew_lost_ticks);
884 } else if (!strcmp(value, "none")) {
885 /* discard is default */
886 } else {
887 fprintf(stderr, "qemu: invalid option value '%s'\n", value);
888 exit(1);
893 /***********************************************************/
894 /* Bluetooth support */
895 static int nb_hcis;
896 static int cur_hci;
897 static struct HCIInfo *hci_table[MAX_NICS];
899 struct HCIInfo *qemu_next_hci(void)
901 if (cur_hci == nb_hcis)
902 return &null_hci;
904 return hci_table[cur_hci++];
907 static int bt_hci_parse(const char *str)
909 struct HCIInfo *hci;
910 bdaddr_t bdaddr;
912 if (nb_hcis >= MAX_NICS) {
913 fprintf(stderr, "qemu: Too many bluetooth HCIs (max %i).\n", MAX_NICS);
914 return -1;
917 hci = hci_init(str);
918 if (!hci)
919 return -1;
921 bdaddr.b[0] = 0x52;
922 bdaddr.b[1] = 0x54;
923 bdaddr.b[2] = 0x00;
924 bdaddr.b[3] = 0x12;
925 bdaddr.b[4] = 0x34;
926 bdaddr.b[5] = 0x56 + nb_hcis;
927 hci->bdaddr_set(hci, bdaddr.b);
929 hci_table[nb_hcis++] = hci;
931 return 0;
934 static void bt_vhci_add(int vlan_id)
936 struct bt_scatternet_s *vlan = qemu_find_bt_vlan(vlan_id);
938 if (!vlan->slave)
939 fprintf(stderr, "qemu: warning: adding a VHCI to "
940 "an empty scatternet %i\n", vlan_id);
942 bt_vhci_init(bt_new_hci(vlan));
945 static struct bt_device_s *bt_device_add(const char *opt)
947 struct bt_scatternet_s *vlan;
948 int vlan_id = 0;
949 char *endp = strstr(opt, ",vlan=");
950 int len = (endp ? endp - opt : strlen(opt)) + 1;
951 char devname[10];
953 pstrcpy(devname, MIN(sizeof(devname), len), opt);
955 if (endp) {
956 vlan_id = strtol(endp + 6, &endp, 0);
957 if (*endp) {
958 fprintf(stderr, "qemu: unrecognised bluetooth vlan Id\n");
959 return 0;
963 vlan = qemu_find_bt_vlan(vlan_id);
965 if (!vlan->slave)
966 fprintf(stderr, "qemu: warning: adding a slave device to "
967 "an empty scatternet %i\n", vlan_id);
969 if (!strcmp(devname, "keyboard"))
970 return bt_keyboard_init(vlan);
972 fprintf(stderr, "qemu: unsupported bluetooth device `%s'\n", devname);
973 return 0;
976 static int bt_parse(const char *opt)
978 const char *endp, *p;
979 int vlan;
981 if (strstart(opt, "hci", &endp)) {
982 if (!*endp || *endp == ',') {
983 if (*endp)
984 if (!strstart(endp, ",vlan=", 0))
985 opt = endp + 1;
987 return bt_hci_parse(opt);
989 } else if (strstart(opt, "vhci", &endp)) {
990 if (!*endp || *endp == ',') {
991 if (*endp) {
992 if (strstart(endp, ",vlan=", &p)) {
993 vlan = strtol(p, (char **) &endp, 0);
994 if (*endp) {
995 fprintf(stderr, "qemu: bad scatternet '%s'\n", p);
996 return 1;
998 } else {
999 fprintf(stderr, "qemu: bad parameter '%s'\n", endp + 1);
1000 return 1;
1002 } else
1003 vlan = 0;
1005 bt_vhci_add(vlan);
1006 return 0;
1008 } else if (strstart(opt, "device:", &endp))
1009 return !bt_device_add(endp);
1011 fprintf(stderr, "qemu: bad bluetooth parameter '%s'\n", opt);
1012 return 1;
1015 static int parse_sandbox(QemuOpts *opts, void *opaque)
1017 /* FIXME: change this to true for 1.3 */
1018 if (qemu_opt_get_bool(opts, "enable", false)) {
1019 #ifdef CONFIG_SECCOMP
1020 if (seccomp_start() < 0) {
1021 qerror_report(ERROR_CLASS_GENERIC_ERROR,
1022 "failed to install seccomp syscall filter in the kernel");
1023 return -1;
1025 #else
1026 qerror_report(ERROR_CLASS_GENERIC_ERROR,
1027 "sandboxing request but seccomp is not compiled into this build");
1028 return -1;
1029 #endif
1032 return 0;
1035 static int parse_name(QemuOpts *opts, void *opaque)
1037 const char *proc_name;
1039 if (qemu_opt_get(opts, "debug-threads")) {
1040 qemu_thread_naming(qemu_opt_get_bool(opts, "debug-threads", false));
1042 qemu_name = qemu_opt_get(opts, "guest");
1044 proc_name = qemu_opt_get(opts, "process");
1045 if (proc_name) {
1046 os_set_proc_name(proc_name);
1049 return 0;
1052 bool usb_enabled(bool default_usb)
1054 return qemu_opt_get_bool(qemu_get_machine_opts(), "usb",
1055 has_defaults && default_usb);
1058 #ifndef _WIN32
1059 static int parse_add_fd(QemuOpts *opts, void *opaque)
1061 int fd, dupfd, flags;
1062 int64_t fdset_id;
1063 const char *fd_opaque = NULL;
1065 fd = qemu_opt_get_number(opts, "fd", -1);
1066 fdset_id = qemu_opt_get_number(opts, "set", -1);
1067 fd_opaque = qemu_opt_get(opts, "opaque");
1069 if (fd < 0) {
1070 qerror_report(ERROR_CLASS_GENERIC_ERROR,
1071 "fd option is required and must be non-negative");
1072 return -1;
1075 if (fd <= STDERR_FILENO) {
1076 qerror_report(ERROR_CLASS_GENERIC_ERROR,
1077 "fd cannot be a standard I/O stream");
1078 return -1;
1082 * All fds inherited across exec() necessarily have FD_CLOEXEC
1083 * clear, while qemu sets FD_CLOEXEC on all other fds used internally.
1085 flags = fcntl(fd, F_GETFD);
1086 if (flags == -1 || (flags & FD_CLOEXEC)) {
1087 qerror_report(ERROR_CLASS_GENERIC_ERROR,
1088 "fd is not valid or already in use");
1089 return -1;
1092 if (fdset_id < 0) {
1093 qerror_report(ERROR_CLASS_GENERIC_ERROR,
1094 "set option is required and must be non-negative");
1095 return -1;
1098 #ifdef F_DUPFD_CLOEXEC
1099 dupfd = fcntl(fd, F_DUPFD_CLOEXEC, 0);
1100 #else
1101 dupfd = dup(fd);
1102 if (dupfd != -1) {
1103 qemu_set_cloexec(dupfd);
1105 #endif
1106 if (dupfd == -1) {
1107 qerror_report(ERROR_CLASS_GENERIC_ERROR,
1108 "Error duplicating fd: %s", strerror(errno));
1109 return -1;
1112 /* add the duplicate fd, and optionally the opaque string, to the fd set */
1113 monitor_fdset_add_fd(dupfd, true, fdset_id, fd_opaque ? true : false,
1114 fd_opaque, NULL);
1116 return 0;
1119 static int cleanup_add_fd(QemuOpts *opts, void *opaque)
1121 int fd;
1123 fd = qemu_opt_get_number(opts, "fd", -1);
1124 close(fd);
1126 return 0;
1128 #endif
1130 /***********************************************************/
1131 /* QEMU Block devices */
1133 #define HD_OPTS "media=disk"
1134 #define CDROM_OPTS "media=cdrom"
1135 #define FD_OPTS ""
1136 #define PFLASH_OPTS ""
1137 #define MTD_OPTS ""
1138 #define SD_OPTS ""
1140 static int drive_init_func(QemuOpts *opts, void *opaque)
1142 BlockInterfaceType *block_default_type = opaque;
1144 return drive_new(opts, *block_default_type) == NULL;
1147 static int drive_enable_snapshot(QemuOpts *opts, void *opaque)
1149 if (qemu_opt_get(opts, "snapshot") == NULL) {
1150 qemu_opt_set(opts, "snapshot", "on");
1152 return 0;
1155 static void default_drive(int enable, int snapshot, BlockInterfaceType type,
1156 int index, const char *optstr)
1158 QemuOpts *opts;
1159 DriveInfo *dinfo;
1161 if (!enable || drive_get_by_index(type, index)) {
1162 return;
1165 opts = drive_add(type, index, NULL, optstr);
1166 if (snapshot) {
1167 drive_enable_snapshot(opts, NULL);
1170 dinfo = drive_new(opts, type);
1171 if (!dinfo) {
1172 exit(1);
1174 dinfo->is_default = true;
1178 void qemu_register_boot_set(QEMUBootSetHandler *func, void *opaque)
1180 boot_set_handler = func;
1181 boot_set_opaque = opaque;
1184 int qemu_boot_set(const char *boot_order)
1186 if (!boot_set_handler) {
1187 return -EINVAL;
1189 return boot_set_handler(boot_set_opaque, boot_order);
1192 static void validate_bootdevices(const char *devices)
1194 /* We just do some generic consistency checks */
1195 const char *p;
1196 int bitmap = 0;
1198 for (p = devices; *p != '\0'; p++) {
1199 /* Allowed boot devices are:
1200 * a-b: floppy disk drives
1201 * c-f: IDE disk drives
1202 * g-m: machine implementation dependent drives
1203 * n-p: network devices
1204 * It's up to each machine implementation to check if the given boot
1205 * devices match the actual hardware implementation and firmware
1206 * features.
1208 if (*p < 'a' || *p > 'p') {
1209 fprintf(stderr, "Invalid boot device '%c'\n", *p);
1210 exit(1);
1212 if (bitmap & (1 << (*p - 'a'))) {
1213 fprintf(stderr, "Boot device '%c' was given twice\n", *p);
1214 exit(1);
1216 bitmap |= 1 << (*p - 'a');
1220 static void restore_boot_order(void *opaque)
1222 char *normal_boot_order = opaque;
1223 static int first = 1;
1225 /* Restore boot order and remove ourselves after the first boot */
1226 if (first) {
1227 first = 0;
1228 return;
1231 qemu_boot_set(normal_boot_order);
1233 qemu_unregister_reset(restore_boot_order, normal_boot_order);
1234 g_free(normal_boot_order);
1237 static QemuOptsList qemu_smp_opts = {
1238 .name = "smp-opts",
1239 .implied_opt_name = "cpus",
1240 .merge_lists = true,
1241 .head = QTAILQ_HEAD_INITIALIZER(qemu_smp_opts.head),
1242 .desc = {
1244 .name = "cpus",
1245 .type = QEMU_OPT_NUMBER,
1246 }, {
1247 .name = "sockets",
1248 .type = QEMU_OPT_NUMBER,
1249 }, {
1250 .name = "cores",
1251 .type = QEMU_OPT_NUMBER,
1252 }, {
1253 .name = "threads",
1254 .type = QEMU_OPT_NUMBER,
1255 }, {
1256 .name = "maxcpus",
1257 .type = QEMU_OPT_NUMBER,
1259 { /*End of list */ }
1263 static void smp_parse(QemuOpts *opts)
1265 if (opts) {
1267 unsigned cpus = qemu_opt_get_number(opts, "cpus", 0);
1268 unsigned sockets = qemu_opt_get_number(opts, "sockets", 0);
1269 unsigned cores = qemu_opt_get_number(opts, "cores", 0);
1270 unsigned threads = qemu_opt_get_number(opts, "threads", 0);
1272 /* compute missing values, prefer sockets over cores over threads */
1273 if (cpus == 0 || sockets == 0) {
1274 sockets = sockets > 0 ? sockets : 1;
1275 cores = cores > 0 ? cores : 1;
1276 threads = threads > 0 ? threads : 1;
1277 if (cpus == 0) {
1278 cpus = cores * threads * sockets;
1280 } else {
1281 if (cores == 0) {
1282 threads = threads > 0 ? threads : 1;
1283 cores = cpus / (sockets * threads);
1284 } else {
1285 threads = cpus / (cores * sockets);
1289 max_cpus = qemu_opt_get_number(opts, "maxcpus", 0);
1291 smp_cpus = cpus;
1292 smp_cores = cores > 0 ? cores : 1;
1293 smp_threads = threads > 0 ? threads : 1;
1297 if (max_cpus == 0) {
1298 max_cpus = smp_cpus;
1301 if (max_cpus > MAX_CPUMASK_BITS) {
1302 fprintf(stderr, "Unsupported number of maxcpus\n");
1303 exit(1);
1305 if (max_cpus < smp_cpus) {
1306 fprintf(stderr, "maxcpus must be equal to or greater than smp\n");
1307 exit(1);
1312 static void realtime_init(void)
1314 if (enable_mlock) {
1315 if (os_mlock() < 0) {
1316 fprintf(stderr, "qemu: locking memory failed\n");
1317 exit(1);
1323 static void configure_msg(QemuOpts *opts)
1325 enable_timestamp_msg = qemu_opt_get_bool(opts, "timestamp", true);
1328 /***********************************************************/
1329 /* USB devices */
1331 static int usb_device_add(const char *devname)
1333 USBDevice *dev = NULL;
1334 #ifndef CONFIG_LINUX
1335 const char *p;
1336 #endif
1338 if (!usb_enabled(false)) {
1339 return -1;
1342 /* drivers with .usbdevice_name entry in USBDeviceInfo */
1343 dev = usbdevice_create(devname);
1344 if (dev)
1345 goto done;
1347 /* the other ones */
1348 #ifndef CONFIG_LINUX
1349 /* only the linux version is qdev-ified, usb-bsd still needs this */
1350 if (strstart(devname, "host:", &p)) {
1351 dev = usb_host_device_open(usb_bus_find(-1), p);
1353 #endif
1354 if (!dev)
1355 return -1;
1357 done:
1358 return 0;
1361 static int usb_device_del(const char *devname)
1363 int bus_num, addr;
1364 const char *p;
1366 if (strstart(devname, "host:", &p)) {
1367 return -1;
1370 if (!usb_enabled(false)) {
1371 return -1;
1374 p = strchr(devname, '.');
1375 if (!p)
1376 return -1;
1377 bus_num = strtoul(devname, NULL, 0);
1378 addr = strtoul(p + 1, NULL, 0);
1380 return usb_device_delete_addr(bus_num, addr);
1383 static int usb_parse(const char *cmdline)
1385 int r;
1386 r = usb_device_add(cmdline);
1387 if (r < 0) {
1388 fprintf(stderr, "qemu: could not add USB device '%s'\n", cmdline);
1390 return r;
1393 void do_usb_add(Monitor *mon, const QDict *qdict)
1395 const char *devname = qdict_get_str(qdict, "devname");
1396 if (usb_device_add(devname) < 0) {
1397 error_report("could not add USB device '%s'", devname);
1401 void do_usb_del(Monitor *mon, const QDict *qdict)
1403 const char *devname = qdict_get_str(qdict, "devname");
1404 if (usb_device_del(devname) < 0) {
1405 error_report("could not delete USB device '%s'", devname);
1409 /***********************************************************/
1410 /* machine registration */
1412 MachineState *current_machine;
1414 static void machine_class_init(ObjectClass *oc, void *data)
1416 MachineClass *mc = MACHINE_CLASS(oc);
1417 QEMUMachine *qm = data;
1419 mc->name = qm->name;
1420 mc->alias = qm->alias;
1421 mc->desc = qm->desc;
1422 mc->init = qm->init;
1423 mc->reset = qm->reset;
1424 mc->hot_add_cpu = qm->hot_add_cpu;
1425 mc->kvm_type = qm->kvm_type;
1426 mc->block_default_type = qm->block_default_type;
1427 mc->units_per_default_bus = qm->units_per_default_bus;
1428 mc->max_cpus = qm->max_cpus;
1429 mc->no_serial = qm->no_serial;
1430 mc->no_parallel = qm->no_parallel;
1431 mc->use_virtcon = qm->use_virtcon;
1432 mc->use_sclp = qm->use_sclp;
1433 mc->no_floppy = qm->no_floppy;
1434 mc->no_cdrom = qm->no_cdrom;
1435 mc->no_sdcard = qm->no_sdcard;
1436 mc->is_default = qm->is_default;
1437 mc->default_machine_opts = qm->default_machine_opts;
1438 mc->default_boot_order = qm->default_boot_order;
1439 mc->compat_props = qm->compat_props;
1440 mc->hw_version = qm->hw_version;
1443 int qemu_register_machine(QEMUMachine *m)
1445 char *name = g_strconcat(m->name, TYPE_MACHINE_SUFFIX, NULL);
1446 TypeInfo ti = {
1447 .name = name,
1448 .parent = TYPE_MACHINE,
1449 .class_init = machine_class_init,
1450 .class_data = (void *)m,
1453 type_register(&ti);
1454 g_free(name);
1456 return 0;
1459 static MachineClass *find_machine(const char *name)
1461 GSList *el, *machines = object_class_get_list(TYPE_MACHINE, false);
1462 MachineClass *mc = NULL;
1464 for (el = machines; el; el = el->next) {
1465 MachineClass *temp = el->data;
1467 if (!strcmp(temp->name, name)) {
1468 mc = temp;
1469 break;
1471 if (temp->alias &&
1472 !strcmp(temp->alias, name)) {
1473 mc = temp;
1474 break;
1478 g_slist_free(machines);
1479 return mc;
1482 MachineClass *find_default_machine(void)
1484 GSList *el, *machines = object_class_get_list(TYPE_MACHINE, false);
1485 MachineClass *mc = NULL;
1487 for (el = machines; el; el = el->next) {
1488 MachineClass *temp = el->data;
1490 if (temp->is_default) {
1491 mc = temp;
1492 break;
1496 g_slist_free(machines);
1497 return mc;
1500 MachineInfoList *qmp_query_machines(Error **errp)
1502 GSList *el, *machines = object_class_get_list(TYPE_MACHINE, false);
1503 MachineInfoList *mach_list = NULL;
1505 for (el = machines; el; el = el->next) {
1506 MachineClass *mc = el->data;
1507 MachineInfoList *entry;
1508 MachineInfo *info;
1510 info = g_malloc0(sizeof(*info));
1511 if (mc->is_default) {
1512 info->has_is_default = true;
1513 info->is_default = true;
1516 if (mc->alias) {
1517 info->has_alias = true;
1518 info->alias = g_strdup(mc->alias);
1521 info->name = g_strdup(mc->name);
1522 info->cpu_max = !mc->max_cpus ? 1 : mc->max_cpus;
1524 entry = g_malloc0(sizeof(*entry));
1525 entry->value = info;
1526 entry->next = mach_list;
1527 mach_list = entry;
1530 g_slist_free(machines);
1531 return mach_list;
1534 /***********************************************************/
1535 /* main execution loop */
1537 struct vm_change_state_entry {
1538 VMChangeStateHandler *cb;
1539 void *opaque;
1540 QLIST_ENTRY (vm_change_state_entry) entries;
1543 static QLIST_HEAD(vm_change_state_head, vm_change_state_entry) vm_change_state_head;
1545 VMChangeStateEntry *qemu_add_vm_change_state_handler(VMChangeStateHandler *cb,
1546 void *opaque)
1548 VMChangeStateEntry *e;
1550 e = g_malloc0(sizeof (*e));
1552 e->cb = cb;
1553 e->opaque = opaque;
1554 QLIST_INSERT_HEAD(&vm_change_state_head, e, entries);
1555 return e;
1558 void qemu_del_vm_change_state_handler(VMChangeStateEntry *e)
1560 QLIST_REMOVE (e, entries);
1561 g_free (e);
1564 void vm_state_notify(int running, RunState state)
1566 VMChangeStateEntry *e, *next;
1568 trace_vm_state_notify(running, state);
1570 QLIST_FOREACH_SAFE(e, &vm_change_state_head, entries, next) {
1571 e->cb(e->opaque, running, state);
1575 /* reset/shutdown handler */
1577 typedef struct QEMUResetEntry {
1578 QTAILQ_ENTRY(QEMUResetEntry) entry;
1579 QEMUResetHandler *func;
1580 void *opaque;
1581 } QEMUResetEntry;
1583 static QTAILQ_HEAD(reset_handlers, QEMUResetEntry) reset_handlers =
1584 QTAILQ_HEAD_INITIALIZER(reset_handlers);
1585 static int reset_requested;
1586 static int shutdown_requested, shutdown_signal = -1;
1587 static pid_t shutdown_pid;
1588 static int powerdown_requested;
1589 static int debug_requested;
1590 static int suspend_requested;
1591 static WakeupReason wakeup_reason;
1592 static NotifierList powerdown_notifiers =
1593 NOTIFIER_LIST_INITIALIZER(powerdown_notifiers);
1594 static NotifierList suspend_notifiers =
1595 NOTIFIER_LIST_INITIALIZER(suspend_notifiers);
1596 static NotifierList wakeup_notifiers =
1597 NOTIFIER_LIST_INITIALIZER(wakeup_notifiers);
1598 static uint32_t wakeup_reason_mask = ~(1 << QEMU_WAKEUP_REASON_NONE);
1600 int qemu_shutdown_requested_get(void)
1602 return shutdown_requested;
1605 int qemu_reset_requested_get(void)
1607 return reset_requested;
1610 static int qemu_shutdown_requested(void)
1612 return atomic_xchg(&shutdown_requested, 0);
1615 static void qemu_kill_report(void)
1617 if (!qtest_driver() && shutdown_signal != -1) {
1618 fprintf(stderr, "qemu: terminating on signal %d", shutdown_signal);
1619 if (shutdown_pid == 0) {
1620 /* This happens for eg ^C at the terminal, so it's worth
1621 * avoiding printing an odd message in that case.
1623 fputc('\n', stderr);
1624 } else {
1625 fprintf(stderr, " from pid " FMT_pid "\n", shutdown_pid);
1627 shutdown_signal = -1;
1631 static int qemu_reset_requested(void)
1633 int r = reset_requested;
1634 reset_requested = 0;
1635 return r;
1638 static int qemu_suspend_requested(void)
1640 int r = suspend_requested;
1641 suspend_requested = 0;
1642 return r;
1645 static WakeupReason qemu_wakeup_requested(void)
1647 return wakeup_reason;
1650 static int qemu_powerdown_requested(void)
1652 int r = powerdown_requested;
1653 powerdown_requested = 0;
1654 return r;
1657 static int qemu_debug_requested(void)
1659 int r = debug_requested;
1660 debug_requested = 0;
1661 return r;
1664 void qemu_register_reset(QEMUResetHandler *func, void *opaque)
1666 QEMUResetEntry *re = g_malloc0(sizeof(QEMUResetEntry));
1668 re->func = func;
1669 re->opaque = opaque;
1670 QTAILQ_INSERT_TAIL(&reset_handlers, re, entry);
1673 void qemu_unregister_reset(QEMUResetHandler *func, void *opaque)
1675 QEMUResetEntry *re;
1677 QTAILQ_FOREACH(re, &reset_handlers, entry) {
1678 if (re->func == func && re->opaque == opaque) {
1679 QTAILQ_REMOVE(&reset_handlers, re, entry);
1680 g_free(re);
1681 return;
1686 void qemu_devices_reset(void)
1688 QEMUResetEntry *re, *nre;
1690 /* reset all devices */
1691 QTAILQ_FOREACH_SAFE(re, &reset_handlers, entry, nre) {
1692 re->func(re->opaque);
1696 void qemu_system_reset(bool report)
1698 MachineClass *mc;
1700 mc = current_machine ? MACHINE_GET_CLASS(current_machine) : NULL;
1702 if (mc && mc->reset) {
1703 mc->reset();
1704 } else {
1705 qemu_devices_reset();
1707 if (report) {
1708 qapi_event_send_reset(&error_abort);
1710 cpu_synchronize_all_post_reset();
1713 void qemu_system_reset_request(void)
1715 if (no_reboot) {
1716 shutdown_requested = 1;
1717 } else {
1718 reset_requested = 1;
1720 cpu_stop_current();
1721 qemu_notify_event();
1724 static void qemu_system_suspend(void)
1726 pause_all_vcpus();
1727 notifier_list_notify(&suspend_notifiers, NULL);
1728 runstate_set(RUN_STATE_SUSPENDED);
1729 qapi_event_send_suspend(&error_abort);
1732 void qemu_system_suspend_request(void)
1734 if (runstate_check(RUN_STATE_SUSPENDED)) {
1735 return;
1737 suspend_requested = 1;
1738 cpu_stop_current();
1739 qemu_notify_event();
1742 void qemu_register_suspend_notifier(Notifier *notifier)
1744 notifier_list_add(&suspend_notifiers, notifier);
1747 void qemu_system_wakeup_request(WakeupReason reason)
1749 trace_system_wakeup_request(reason);
1751 if (!runstate_check(RUN_STATE_SUSPENDED)) {
1752 return;
1754 if (!(wakeup_reason_mask & (1 << reason))) {
1755 return;
1757 runstate_set(RUN_STATE_RUNNING);
1758 wakeup_reason = reason;
1759 qemu_notify_event();
1762 void qemu_system_wakeup_enable(WakeupReason reason, bool enabled)
1764 if (enabled) {
1765 wakeup_reason_mask |= (1 << reason);
1766 } else {
1767 wakeup_reason_mask &= ~(1 << reason);
1771 void qemu_register_wakeup_notifier(Notifier *notifier)
1773 notifier_list_add(&wakeup_notifiers, notifier);
1776 void qemu_system_killed(int signal, pid_t pid)
1778 shutdown_signal = signal;
1779 shutdown_pid = pid;
1780 no_shutdown = 0;
1781 qemu_system_shutdown_request();
1784 void qemu_system_shutdown_request(void)
1786 trace_qemu_system_shutdown_request();
1787 shutdown_requested = 1;
1788 qemu_notify_event();
1791 static void qemu_system_powerdown(void)
1793 qapi_event_send_powerdown(&error_abort);
1794 notifier_list_notify(&powerdown_notifiers, NULL);
1797 void qemu_system_powerdown_request(void)
1799 trace_qemu_system_powerdown_request();
1800 powerdown_requested = 1;
1801 qemu_notify_event();
1804 void qemu_register_powerdown_notifier(Notifier *notifier)
1806 notifier_list_add(&powerdown_notifiers, notifier);
1809 void qemu_system_debug_request(void)
1811 debug_requested = 1;
1812 qemu_notify_event();
1815 static bool main_loop_should_exit(void)
1817 RunState r;
1818 if (qemu_debug_requested()) {
1819 vm_stop(RUN_STATE_DEBUG);
1821 if (qemu_suspend_requested()) {
1822 qemu_system_suspend();
1824 if (qemu_shutdown_requested()) {
1825 qemu_kill_report();
1826 qapi_event_send_shutdown(&error_abort);
1827 if (no_shutdown) {
1828 vm_stop(RUN_STATE_SHUTDOWN);
1829 } else {
1830 return true;
1833 if (qemu_reset_requested()) {
1834 pause_all_vcpus();
1835 cpu_synchronize_all_states();
1836 qemu_system_reset(VMRESET_REPORT);
1837 resume_all_vcpus();
1838 if (runstate_needs_reset()) {
1839 runstate_set(RUN_STATE_PAUSED);
1842 if (qemu_wakeup_requested()) {
1843 pause_all_vcpus();
1844 cpu_synchronize_all_states();
1845 qemu_system_reset(VMRESET_SILENT);
1846 notifier_list_notify(&wakeup_notifiers, &wakeup_reason);
1847 wakeup_reason = QEMU_WAKEUP_REASON_NONE;
1848 resume_all_vcpus();
1849 qapi_event_send_wakeup(&error_abort);
1851 if (qemu_powerdown_requested()) {
1852 qemu_system_powerdown();
1854 if (qemu_vmstop_requested(&r)) {
1855 vm_stop(r);
1857 return false;
1860 static void main_loop(void)
1862 bool nonblocking;
1863 int last_io = 0;
1864 #ifdef CONFIG_PROFILER
1865 int64_t ti;
1866 #endif
1867 do {
1868 nonblocking = !kvm_enabled() && !xen_enabled() && last_io > 0;
1869 #ifdef CONFIG_PROFILER
1870 ti = profile_getclock();
1871 #endif
1872 last_io = main_loop_wait(nonblocking);
1873 #ifdef CONFIG_PROFILER
1874 dev_time += profile_getclock() - ti;
1875 #endif
1876 } while (!main_loop_should_exit());
1879 static void version(void)
1881 printf("QEMU emulator version " QEMU_VERSION QEMU_PKGVERSION ", Copyright (c) 2003-2008 Fabrice Bellard\n");
1884 static void help(int exitcode)
1886 version();
1887 printf("usage: %s [options] [disk_image]\n\n"
1888 "'disk_image' is a raw hard disk image for IDE hard disk 0\n\n",
1889 error_get_progname());
1891 #define QEMU_OPTIONS_GENERATE_HELP
1892 #include "qemu-options-wrapper.h"
1894 printf("\nDuring emulation, the following keys are useful:\n"
1895 "ctrl-alt-f toggle full screen\n"
1896 "ctrl-alt-n switch to virtual console 'n'\n"
1897 "ctrl-alt toggle mouse and keyboard grab\n"
1898 "\n"
1899 "When using -nographic, press 'ctrl-a h' to get some help.\n");
1901 exit(exitcode);
1904 #define HAS_ARG 0x0001
1906 typedef struct QEMUOption {
1907 const char *name;
1908 int flags;
1909 int index;
1910 uint32_t arch_mask;
1911 } QEMUOption;
1913 static const QEMUOption qemu_options[] = {
1914 { "h", 0, QEMU_OPTION_h, QEMU_ARCH_ALL },
1915 #define QEMU_OPTIONS_GENERATE_OPTIONS
1916 #include "qemu-options-wrapper.h"
1917 { NULL },
1920 static bool vga_available(void)
1922 return object_class_by_name("VGA") || object_class_by_name("isa-vga");
1925 static bool cirrus_vga_available(void)
1927 return object_class_by_name("cirrus-vga")
1928 || object_class_by_name("isa-cirrus-vga");
1931 static bool vmware_vga_available(void)
1933 return object_class_by_name("vmware-svga");
1936 static bool qxl_vga_available(void)
1938 return object_class_by_name("qxl-vga");
1941 static bool tcx_vga_available(void)
1943 return object_class_by_name("SUNW,tcx");
1946 static bool cg3_vga_available(void)
1948 return object_class_by_name("cgthree");
1951 static void select_vgahw (const char *p)
1953 const char *opts;
1955 assert(vga_interface_type == VGA_NONE);
1956 if (strstart(p, "std", &opts)) {
1957 if (vga_available()) {
1958 vga_interface_type = VGA_STD;
1959 } else {
1960 fprintf(stderr, "Error: standard VGA not available\n");
1961 exit(0);
1963 } else if (strstart(p, "cirrus", &opts)) {
1964 if (cirrus_vga_available()) {
1965 vga_interface_type = VGA_CIRRUS;
1966 } else {
1967 fprintf(stderr, "Error: Cirrus VGA not available\n");
1968 exit(0);
1970 } else if (strstart(p, "vmware", &opts)) {
1971 if (vmware_vga_available()) {
1972 vga_interface_type = VGA_VMWARE;
1973 } else {
1974 fprintf(stderr, "Error: VMWare SVGA not available\n");
1975 exit(0);
1977 } else if (strstart(p, "xenfb", &opts)) {
1978 vga_interface_type = VGA_XENFB;
1979 } else if (strstart(p, "qxl", &opts)) {
1980 if (qxl_vga_available()) {
1981 vga_interface_type = VGA_QXL;
1982 } else {
1983 fprintf(stderr, "Error: QXL VGA not available\n");
1984 exit(0);
1986 } else if (strstart(p, "tcx", &opts)) {
1987 if (tcx_vga_available()) {
1988 vga_interface_type = VGA_TCX;
1989 } else {
1990 fprintf(stderr, "Error: TCX framebuffer not available\n");
1991 exit(0);
1993 } else if (strstart(p, "cg3", &opts)) {
1994 if (cg3_vga_available()) {
1995 vga_interface_type = VGA_CG3;
1996 } else {
1997 fprintf(stderr, "Error: CG3 framebuffer not available\n");
1998 exit(0);
2000 } else if (!strstart(p, "none", &opts)) {
2001 invalid_vga:
2002 fprintf(stderr, "Unknown vga type: %s\n", p);
2003 exit(1);
2005 while (*opts) {
2006 const char *nextopt;
2008 if (strstart(opts, ",retrace=", &nextopt)) {
2009 opts = nextopt;
2010 if (strstart(opts, "dumb", &nextopt))
2011 vga_retrace_method = VGA_RETRACE_DUMB;
2012 else if (strstart(opts, "precise", &nextopt))
2013 vga_retrace_method = VGA_RETRACE_PRECISE;
2014 else goto invalid_vga;
2015 } else goto invalid_vga;
2016 opts = nextopt;
2020 static DisplayType select_display(const char *p)
2022 const char *opts;
2023 DisplayType display = DT_DEFAULT;
2025 if (strstart(p, "sdl", &opts)) {
2026 #ifdef CONFIG_SDL
2027 display = DT_SDL;
2028 while (*opts) {
2029 const char *nextopt;
2031 if (strstart(opts, ",frame=", &nextopt)) {
2032 opts = nextopt;
2033 if (strstart(opts, "on", &nextopt)) {
2034 no_frame = 0;
2035 } else if (strstart(opts, "off", &nextopt)) {
2036 no_frame = 1;
2037 } else {
2038 goto invalid_sdl_args;
2040 } else if (strstart(opts, ",alt_grab=", &nextopt)) {
2041 opts = nextopt;
2042 if (strstart(opts, "on", &nextopt)) {
2043 alt_grab = 1;
2044 } else if (strstart(opts, "off", &nextopt)) {
2045 alt_grab = 0;
2046 } else {
2047 goto invalid_sdl_args;
2049 } else if (strstart(opts, ",ctrl_grab=", &nextopt)) {
2050 opts = nextopt;
2051 if (strstart(opts, "on", &nextopt)) {
2052 ctrl_grab = 1;
2053 } else if (strstart(opts, "off", &nextopt)) {
2054 ctrl_grab = 0;
2055 } else {
2056 goto invalid_sdl_args;
2058 } else if (strstart(opts, ",window_close=", &nextopt)) {
2059 opts = nextopt;
2060 if (strstart(opts, "on", &nextopt)) {
2061 no_quit = 0;
2062 } else if (strstart(opts, "off", &nextopt)) {
2063 no_quit = 1;
2064 } else {
2065 goto invalid_sdl_args;
2067 } else {
2068 invalid_sdl_args:
2069 fprintf(stderr, "Invalid SDL option string: %s\n", p);
2070 exit(1);
2072 opts = nextopt;
2074 #else
2075 fprintf(stderr, "SDL support is disabled\n");
2076 exit(1);
2077 #endif
2078 } else if (strstart(p, "vnc", &opts)) {
2079 #ifdef CONFIG_VNC
2080 display_remote++;
2082 if (*opts) {
2083 const char *nextopt;
2085 if (strstart(opts, "=", &nextopt)) {
2086 vnc_display = nextopt;
2089 if (!vnc_display) {
2090 fprintf(stderr, "VNC requires a display argument vnc=<display>\n");
2091 exit(1);
2093 #else
2094 fprintf(stderr, "VNC support is disabled\n");
2095 exit(1);
2096 #endif
2097 } else if (strstart(p, "curses", &opts)) {
2098 #ifdef CONFIG_CURSES
2099 display = DT_CURSES;
2100 #else
2101 fprintf(stderr, "Curses support is disabled\n");
2102 exit(1);
2103 #endif
2104 } else if (strstart(p, "gtk", &opts)) {
2105 #ifdef CONFIG_GTK
2106 display = DT_GTK;
2107 while (*opts) {
2108 const char *nextopt;
2110 if (strstart(opts, ",grab_on_hover=", &nextopt)) {
2111 opts = nextopt;
2112 if (strstart(opts, "on", &nextopt)) {
2113 grab_on_hover = true;
2114 } else if (strstart(opts, "off", &nextopt)) {
2115 grab_on_hover = false;
2116 } else {
2117 goto invalid_gtk_args;
2119 } else {
2120 invalid_gtk_args:
2121 fprintf(stderr, "Invalid GTK option string: %s\n", p);
2122 exit(1);
2124 opts = nextopt;
2126 #else
2127 fprintf(stderr, "GTK support is disabled\n");
2128 exit(1);
2129 #endif
2130 } else if (strstart(p, "none", &opts)) {
2131 display = DT_NONE;
2132 } else {
2133 fprintf(stderr, "Unknown display type: %s\n", p);
2134 exit(1);
2137 return display;
2140 static int balloon_parse(const char *arg)
2142 QemuOpts *opts;
2144 if (strcmp(arg, "none") == 0) {
2145 return 0;
2148 if (!strncmp(arg, "virtio", 6)) {
2149 if (arg[6] == ',') {
2150 /* have params -> parse them */
2151 opts = qemu_opts_parse(qemu_find_opts("device"), arg+7, 0);
2152 if (!opts)
2153 return -1;
2154 } else {
2155 /* create empty opts */
2156 opts = qemu_opts_create(qemu_find_opts("device"), NULL, 0,
2157 &error_abort);
2159 qemu_opt_set(opts, "driver", "virtio-balloon");
2160 return 0;
2163 return -1;
2166 char *qemu_find_file(int type, const char *name)
2168 int i;
2169 const char *subdir;
2170 char *buf;
2172 /* Try the name as a straight path first */
2173 if (access(name, R_OK) == 0) {
2174 trace_load_file(name, name);
2175 return g_strdup(name);
2178 switch (type) {
2179 case QEMU_FILE_TYPE_BIOS:
2180 subdir = "";
2181 break;
2182 case QEMU_FILE_TYPE_KEYMAP:
2183 subdir = "keymaps/";
2184 break;
2185 default:
2186 abort();
2189 for (i = 0; i < data_dir_idx; i++) {
2190 buf = g_strdup_printf("%s/%s%s", data_dir[i], subdir, name);
2191 if (access(buf, R_OK) == 0) {
2192 trace_load_file(name, buf);
2193 return buf;
2195 g_free(buf);
2197 return NULL;
2200 static int device_help_func(QemuOpts *opts, void *opaque)
2202 return qdev_device_help(opts);
2205 static int device_init_func(QemuOpts *opts, void *opaque)
2207 DeviceState *dev;
2209 dev = qdev_device_add(opts);
2210 if (!dev)
2211 return -1;
2212 object_unref(OBJECT(dev));
2213 return 0;
2216 static int chardev_init_func(QemuOpts *opts, void *opaque)
2218 Error *local_err = NULL;
2220 qemu_chr_new_from_opts(opts, NULL, &local_err);
2221 if (local_err) {
2222 error_report("%s", error_get_pretty(local_err));
2223 error_free(local_err);
2224 return -1;
2226 return 0;
2229 #ifdef CONFIG_VIRTFS
2230 static int fsdev_init_func(QemuOpts *opts, void *opaque)
2232 int ret;
2233 ret = qemu_fsdev_add(opts);
2235 return ret;
2237 #endif
2239 static int mon_init_func(QemuOpts *opts, void *opaque)
2241 CharDriverState *chr;
2242 const char *chardev;
2243 const char *mode;
2244 int flags;
2246 mode = qemu_opt_get(opts, "mode");
2247 if (mode == NULL) {
2248 mode = "readline";
2250 if (strcmp(mode, "readline") == 0) {
2251 flags = MONITOR_USE_READLINE;
2252 } else if (strcmp(mode, "control") == 0) {
2253 flags = MONITOR_USE_CONTROL;
2254 } else {
2255 fprintf(stderr, "unknown monitor mode \"%s\"\n", mode);
2256 exit(1);
2259 if (qemu_opt_get_bool(opts, "pretty", 0))
2260 flags |= MONITOR_USE_PRETTY;
2262 if (qemu_opt_get_bool(opts, "default", 0))
2263 flags |= MONITOR_IS_DEFAULT;
2265 chardev = qemu_opt_get(opts, "chardev");
2266 chr = qemu_chr_find(chardev);
2267 if (chr == NULL) {
2268 fprintf(stderr, "chardev \"%s\" not found\n", chardev);
2269 exit(1);
2272 qemu_chr_fe_claim_no_fail(chr);
2273 monitor_init(chr, flags);
2274 return 0;
2277 static void monitor_parse(const char *optarg, const char *mode)
2279 static int monitor_device_index = 0;
2280 QemuOpts *opts;
2281 const char *p;
2282 char label[32];
2283 int def = 0;
2285 if (strstart(optarg, "chardev:", &p)) {
2286 snprintf(label, sizeof(label), "%s", p);
2287 } else {
2288 snprintf(label, sizeof(label), "compat_monitor%d",
2289 monitor_device_index);
2290 if (monitor_device_index == 0) {
2291 def = 1;
2293 opts = qemu_chr_parse_compat(label, optarg);
2294 if (!opts) {
2295 fprintf(stderr, "parse error: %s\n", optarg);
2296 exit(1);
2300 opts = qemu_opts_create(qemu_find_opts("mon"), label, 1, NULL);
2301 if (!opts) {
2302 fprintf(stderr, "duplicate chardev: %s\n", label);
2303 exit(1);
2305 qemu_opt_set(opts, "mode", mode);
2306 qemu_opt_set(opts, "chardev", label);
2307 if (def)
2308 qemu_opt_set(opts, "default", "on");
2309 monitor_device_index++;
2312 struct device_config {
2313 enum {
2314 DEV_USB, /* -usbdevice */
2315 DEV_BT, /* -bt */
2316 DEV_SERIAL, /* -serial */
2317 DEV_PARALLEL, /* -parallel */
2318 DEV_VIRTCON, /* -virtioconsole */
2319 DEV_DEBUGCON, /* -debugcon */
2320 DEV_GDB, /* -gdb, -s */
2321 DEV_SCLP, /* s390 sclp */
2322 } type;
2323 const char *cmdline;
2324 Location loc;
2325 QTAILQ_ENTRY(device_config) next;
2328 static QTAILQ_HEAD(, device_config) device_configs =
2329 QTAILQ_HEAD_INITIALIZER(device_configs);
2331 static void add_device_config(int type, const char *cmdline)
2333 struct device_config *conf;
2335 conf = g_malloc0(sizeof(*conf));
2336 conf->type = type;
2337 conf->cmdline = cmdline;
2338 loc_save(&conf->loc);
2339 QTAILQ_INSERT_TAIL(&device_configs, conf, next);
2342 static int foreach_device_config(int type, int (*func)(const char *cmdline))
2344 struct device_config *conf;
2345 int rc;
2347 QTAILQ_FOREACH(conf, &device_configs, next) {
2348 if (conf->type != type)
2349 continue;
2350 loc_push_restore(&conf->loc);
2351 rc = func(conf->cmdline);
2352 loc_pop(&conf->loc);
2353 if (rc) {
2354 return rc;
2357 return 0;
2360 static int serial_parse(const char *devname)
2362 static int index = 0;
2363 char label[32];
2365 if (strcmp(devname, "none") == 0)
2366 return 0;
2367 if (index == MAX_SERIAL_PORTS) {
2368 fprintf(stderr, "qemu: too many serial ports\n");
2369 exit(1);
2371 snprintf(label, sizeof(label), "serial%d", index);
2372 serial_hds[index] = qemu_chr_new(label, devname, NULL);
2373 if (!serial_hds[index]) {
2374 fprintf(stderr, "qemu: could not connect serial device"
2375 " to character backend '%s'\n", devname);
2376 return -1;
2378 index++;
2379 return 0;
2382 static int parallel_parse(const char *devname)
2384 static int index = 0;
2385 char label[32];
2387 if (strcmp(devname, "none") == 0)
2388 return 0;
2389 if (index == MAX_PARALLEL_PORTS) {
2390 fprintf(stderr, "qemu: too many parallel ports\n");
2391 exit(1);
2393 snprintf(label, sizeof(label), "parallel%d", index);
2394 parallel_hds[index] = qemu_chr_new(label, devname, NULL);
2395 if (!parallel_hds[index]) {
2396 fprintf(stderr, "qemu: could not connect parallel device"
2397 " to character backend '%s'\n", devname);
2398 return -1;
2400 index++;
2401 return 0;
2404 static int virtcon_parse(const char *devname)
2406 QemuOptsList *device = qemu_find_opts("device");
2407 static int index = 0;
2408 char label[32];
2409 QemuOpts *bus_opts, *dev_opts;
2411 if (strcmp(devname, "none") == 0)
2412 return 0;
2413 if (index == MAX_VIRTIO_CONSOLES) {
2414 fprintf(stderr, "qemu: too many virtio consoles\n");
2415 exit(1);
2418 bus_opts = qemu_opts_create(device, NULL, 0, &error_abort);
2419 if (arch_type == QEMU_ARCH_S390X) {
2420 qemu_opt_set(bus_opts, "driver", "virtio-serial-s390");
2421 } else {
2422 qemu_opt_set(bus_opts, "driver", "virtio-serial-pci");
2425 dev_opts = qemu_opts_create(device, NULL, 0, &error_abort);
2426 qemu_opt_set(dev_opts, "driver", "virtconsole");
2428 snprintf(label, sizeof(label), "virtcon%d", index);
2429 virtcon_hds[index] = qemu_chr_new(label, devname, NULL);
2430 if (!virtcon_hds[index]) {
2431 fprintf(stderr, "qemu: could not connect virtio console"
2432 " to character backend '%s'\n", devname);
2433 return -1;
2435 qemu_opt_set(dev_opts, "chardev", label);
2437 index++;
2438 return 0;
2441 static int sclp_parse(const char *devname)
2443 QemuOptsList *device = qemu_find_opts("device");
2444 static int index = 0;
2445 char label[32];
2446 QemuOpts *dev_opts;
2448 if (strcmp(devname, "none") == 0) {
2449 return 0;
2451 if (index == MAX_SCLP_CONSOLES) {
2452 fprintf(stderr, "qemu: too many sclp consoles\n");
2453 exit(1);
2456 assert(arch_type == QEMU_ARCH_S390X);
2458 dev_opts = qemu_opts_create(device, NULL, 0, NULL);
2459 qemu_opt_set(dev_opts, "driver", "sclpconsole");
2461 snprintf(label, sizeof(label), "sclpcon%d", index);
2462 sclp_hds[index] = qemu_chr_new(label, devname, NULL);
2463 if (!sclp_hds[index]) {
2464 fprintf(stderr, "qemu: could not connect sclp console"
2465 " to character backend '%s'\n", devname);
2466 return -1;
2468 qemu_opt_set(dev_opts, "chardev", label);
2470 index++;
2471 return 0;
2474 static int debugcon_parse(const char *devname)
2476 QemuOpts *opts;
2478 if (!qemu_chr_new("debugcon", devname, NULL)) {
2479 exit(1);
2481 opts = qemu_opts_create(qemu_find_opts("device"), "debugcon", 1, NULL);
2482 if (!opts) {
2483 fprintf(stderr, "qemu: already have a debugcon device\n");
2484 exit(1);
2486 qemu_opt_set(opts, "driver", "isa-debugcon");
2487 qemu_opt_set(opts, "chardev", "debugcon");
2488 return 0;
2491 static MachineClass *machine_parse(const char *name)
2493 MachineClass *mc = NULL;
2494 GSList *el, *machines = object_class_get_list(TYPE_MACHINE, false);
2496 if (name) {
2497 mc = find_machine(name);
2499 if (mc) {
2500 return mc;
2502 if (name && !is_help_option(name)) {
2503 error_report("Unsupported machine type");
2504 error_printf("Use -machine help to list supported machines!\n");
2505 } else {
2506 printf("Supported machines are:\n");
2507 for (el = machines; el; el = el->next) {
2508 MachineClass *mc = el->data;
2509 if (mc->alias) {
2510 printf("%-20s %s (alias of %s)\n", mc->alias, mc->desc, mc->name);
2512 printf("%-20s %s%s\n", mc->name, mc->desc,
2513 mc->is_default ? " (default)" : "");
2517 g_slist_free(machines);
2518 exit(!name || !is_help_option(name));
2521 void qemu_add_exit_notifier(Notifier *notify)
2523 notifier_list_add(&exit_notifiers, notify);
2526 void qemu_remove_exit_notifier(Notifier *notify)
2528 notifier_remove(notify);
2531 static void qemu_run_exit_notifiers(void)
2533 notifier_list_notify(&exit_notifiers, NULL);
2536 void qemu_add_machine_init_done_notifier(Notifier *notify)
2538 notifier_list_add(&machine_init_done_notifiers, notify);
2541 static void qemu_run_machine_init_done_notifiers(void)
2543 notifier_list_notify(&machine_init_done_notifiers, NULL);
2546 static const QEMUOption *lookup_opt(int argc, char **argv,
2547 const char **poptarg, int *poptind)
2549 const QEMUOption *popt;
2550 int optind = *poptind;
2551 char *r = argv[optind];
2552 const char *optarg;
2554 loc_set_cmdline(argv, optind, 1);
2555 optind++;
2556 /* Treat --foo the same as -foo. */
2557 if (r[1] == '-')
2558 r++;
2559 popt = qemu_options;
2560 for(;;) {
2561 if (!popt->name) {
2562 error_report("invalid option");
2563 exit(1);
2565 if (!strcmp(popt->name, r + 1))
2566 break;
2567 popt++;
2569 if (popt->flags & HAS_ARG) {
2570 if (optind >= argc) {
2571 error_report("requires an argument");
2572 exit(1);
2574 optarg = argv[optind++];
2575 loc_set_cmdline(argv, optind - 2, 2);
2576 } else {
2577 optarg = NULL;
2580 *poptarg = optarg;
2581 *poptind = optind;
2583 return popt;
2586 static gpointer malloc_and_trace(gsize n_bytes)
2588 void *ptr = malloc(n_bytes);
2589 trace_g_malloc(n_bytes, ptr);
2590 return ptr;
2593 static gpointer realloc_and_trace(gpointer mem, gsize n_bytes)
2595 void *ptr = realloc(mem, n_bytes);
2596 trace_g_realloc(mem, n_bytes, ptr);
2597 return ptr;
2600 static void free_and_trace(gpointer mem)
2602 trace_g_free(mem);
2603 free(mem);
2606 static int machine_set_property(const char *name, const char *value,
2607 void *opaque)
2609 Object *obj = OBJECT(opaque);
2610 StringInputVisitor *siv;
2611 Error *local_err = NULL;
2612 char *c, *qom_name;
2614 if (strcmp(name, "type") == 0) {
2615 return 0;
2618 qom_name = g_strdup(name);
2619 c = qom_name;
2620 while (*c++) {
2621 if (*c == '_') {
2622 *c = '-';
2626 siv = string_input_visitor_new(value);
2627 object_property_set(obj, string_input_get_visitor(siv), qom_name, &local_err);
2628 string_input_visitor_cleanup(siv);
2629 g_free(qom_name);
2631 if (local_err) {
2632 qerror_report_err(local_err);
2633 error_free(local_err);
2634 return -1;
2637 return 0;
2640 static int object_create(QemuOpts *opts, void *opaque)
2642 Error *err = NULL;
2643 char *type = NULL;
2644 char *id = NULL;
2645 void *dummy = NULL;
2646 OptsVisitor *ov;
2647 QDict *pdict;
2649 ov = opts_visitor_new(opts);
2650 pdict = qemu_opts_to_qdict(opts, NULL);
2652 visit_start_struct(opts_get_visitor(ov), &dummy, NULL, NULL, 0, &err);
2653 if (err) {
2654 goto out;
2657 qdict_del(pdict, "qom-type");
2658 visit_type_str(opts_get_visitor(ov), &type, "qom-type", &err);
2659 if (err) {
2660 goto out;
2663 qdict_del(pdict, "id");
2664 visit_type_str(opts_get_visitor(ov), &id, "id", &err);
2665 if (err) {
2666 goto out;
2669 object_add(type, id, pdict, opts_get_visitor(ov), &err);
2670 if (err) {
2671 goto out;
2673 visit_end_struct(opts_get_visitor(ov), &err);
2674 if (err) {
2675 qmp_object_del(id, NULL);
2678 out:
2679 opts_visitor_cleanup(ov);
2681 QDECREF(pdict);
2682 g_free(id);
2683 g_free(type);
2684 g_free(dummy);
2685 if (err) {
2686 qerror_report_err(err);
2687 error_free(err);
2688 return -1;
2690 return 0;
2693 int main(int argc, char **argv, char **envp)
2695 int i;
2696 int snapshot, linux_boot;
2697 const char *initrd_filename;
2698 const char *kernel_filename, *kernel_cmdline;
2699 const char *boot_order;
2700 DisplayState *ds;
2701 int cyls, heads, secs, translation;
2702 QemuOpts *hda_opts = NULL, *opts, *machine_opts, *icount_opts = NULL;
2703 QemuOptsList *olist;
2704 int optind;
2705 const char *optarg;
2706 const char *loadvm = NULL;
2707 MachineClass *machine_class;
2708 const char *cpu_model;
2709 const char *vga_model = NULL;
2710 const char *qtest_chrdev = NULL;
2711 const char *qtest_log = NULL;
2712 const char *pid_file = NULL;
2713 const char *incoming = NULL;
2714 #ifdef CONFIG_VNC
2715 int show_vnc_port = 0;
2716 #endif
2717 bool defconfig = true;
2718 bool userconfig = true;
2719 const char *log_mask = NULL;
2720 const char *log_file = NULL;
2721 GMemVTable mem_trace = {
2722 .malloc = malloc_and_trace,
2723 .realloc = realloc_and_trace,
2724 .free = free_and_trace,
2726 const char *trace_events = NULL;
2727 const char *trace_file = NULL;
2728 const ram_addr_t default_ram_size = (ram_addr_t)DEFAULT_RAM_SIZE *
2729 1024 * 1024;
2730 ram_addr_t maxram_size = default_ram_size;
2731 uint64_t ram_slots = 0;
2732 FILE *vmstate_dump_file = NULL;
2733 Error *main_loop_err = NULL;
2735 atexit(qemu_run_exit_notifiers);
2736 error_set_progname(argv[0]);
2737 qemu_init_exec_dir(argv[0]);
2739 g_mem_set_vtable(&mem_trace);
2741 module_call_init(MODULE_INIT_QOM);
2743 qemu_add_opts(&qemu_drive_opts);
2744 qemu_add_drive_opts(&qemu_legacy_drive_opts);
2745 qemu_add_drive_opts(&qemu_common_drive_opts);
2746 qemu_add_drive_opts(&qemu_drive_opts);
2747 qemu_add_opts(&qemu_chardev_opts);
2748 qemu_add_opts(&qemu_device_opts);
2749 qemu_add_opts(&qemu_netdev_opts);
2750 qemu_add_opts(&qemu_net_opts);
2751 qemu_add_opts(&qemu_rtc_opts);
2752 qemu_add_opts(&qemu_global_opts);
2753 qemu_add_opts(&qemu_mon_opts);
2754 qemu_add_opts(&qemu_trace_opts);
2755 qemu_add_opts(&qemu_option_rom_opts);
2756 qemu_add_opts(&qemu_machine_opts);
2757 qemu_add_opts(&qemu_mem_opts);
2758 qemu_add_opts(&qemu_smp_opts);
2759 qemu_add_opts(&qemu_boot_opts);
2760 qemu_add_opts(&qemu_sandbox_opts);
2761 qemu_add_opts(&qemu_add_fd_opts);
2762 qemu_add_opts(&qemu_object_opts);
2763 qemu_add_opts(&qemu_tpmdev_opts);
2764 qemu_add_opts(&qemu_realtime_opts);
2765 qemu_add_opts(&qemu_msg_opts);
2766 qemu_add_opts(&qemu_name_opts);
2767 qemu_add_opts(&qemu_numa_opts);
2768 qemu_add_opts(&qemu_icount_opts);
2770 runstate_init();
2772 rtc_clock = QEMU_CLOCK_HOST;
2774 QLIST_INIT (&vm_change_state_head);
2775 os_setup_early_signal_handling();
2777 module_call_init(MODULE_INIT_MACHINE);
2778 machine_class = find_default_machine();
2779 cpu_model = NULL;
2780 ram_size = default_ram_size;
2781 snapshot = 0;
2782 cyls = heads = secs = 0;
2783 translation = BIOS_ATA_TRANSLATION_AUTO;
2785 for (i = 0; i < MAX_NODES; i++) {
2786 numa_info[i].node_mem = 0;
2787 numa_info[i].present = false;
2788 bitmap_zero(numa_info[i].node_cpu, MAX_CPUMASK_BITS);
2791 nb_numa_nodes = 0;
2792 max_numa_nodeid = 0;
2793 nb_nics = 0;
2795 bdrv_init_with_whitelist();
2797 autostart = 1;
2799 /* first pass of option parsing */
2800 optind = 1;
2801 while (optind < argc) {
2802 if (argv[optind][0] != '-') {
2803 /* disk image */
2804 optind++;
2805 } else {
2806 const QEMUOption *popt;
2808 popt = lookup_opt(argc, argv, &optarg, &optind);
2809 switch (popt->index) {
2810 case QEMU_OPTION_nodefconfig:
2811 defconfig = false;
2812 break;
2813 case QEMU_OPTION_nouserconfig:
2814 userconfig = false;
2815 break;
2820 if (defconfig) {
2821 int ret;
2822 ret = qemu_read_default_config_files(userconfig);
2823 if (ret < 0) {
2824 exit(1);
2828 /* second pass of option parsing */
2829 optind = 1;
2830 for(;;) {
2831 if (optind >= argc)
2832 break;
2833 if (argv[optind][0] != '-') {
2834 hda_opts = drive_add(IF_DEFAULT, 0, argv[optind++], HD_OPTS);
2835 } else {
2836 const QEMUOption *popt;
2838 popt = lookup_opt(argc, argv, &optarg, &optind);
2839 if (!(popt->arch_mask & arch_type)) {
2840 printf("Option %s not supported for this target\n", popt->name);
2841 exit(1);
2843 switch(popt->index) {
2844 case QEMU_OPTION_M:
2845 machine_class = machine_parse(optarg);
2846 break;
2847 case QEMU_OPTION_no_kvm_irqchip: {
2848 olist = qemu_find_opts("machine");
2849 qemu_opts_parse(olist, "kernel_irqchip=off", 0);
2850 break;
2852 case QEMU_OPTION_cpu:
2853 /* hw initialization will check this */
2854 cpu_model = optarg;
2855 break;
2856 case QEMU_OPTION_hda:
2858 char buf[256];
2859 if (cyls == 0)
2860 snprintf(buf, sizeof(buf), "%s", HD_OPTS);
2861 else
2862 snprintf(buf, sizeof(buf),
2863 "%s,cyls=%d,heads=%d,secs=%d%s",
2864 HD_OPTS , cyls, heads, secs,
2865 translation == BIOS_ATA_TRANSLATION_LBA ?
2866 ",trans=lba" :
2867 translation == BIOS_ATA_TRANSLATION_NONE ?
2868 ",trans=none" : "");
2869 drive_add(IF_DEFAULT, 0, optarg, buf);
2870 break;
2872 case QEMU_OPTION_hdb:
2873 case QEMU_OPTION_hdc:
2874 case QEMU_OPTION_hdd:
2875 drive_add(IF_DEFAULT, popt->index - QEMU_OPTION_hda, optarg,
2876 HD_OPTS);
2877 break;
2878 case QEMU_OPTION_drive:
2879 if (drive_def(optarg) == NULL) {
2880 exit(1);
2882 break;
2883 case QEMU_OPTION_set:
2884 if (qemu_set_option(optarg) != 0)
2885 exit(1);
2886 break;
2887 case QEMU_OPTION_global:
2888 if (qemu_global_option(optarg) != 0)
2889 exit(1);
2890 break;
2891 case QEMU_OPTION_mtdblock:
2892 drive_add(IF_MTD, -1, optarg, MTD_OPTS);
2893 break;
2894 case QEMU_OPTION_sd:
2895 drive_add(IF_SD, -1, optarg, SD_OPTS);
2896 break;
2897 case QEMU_OPTION_pflash:
2898 drive_add(IF_PFLASH, -1, optarg, PFLASH_OPTS);
2899 break;
2900 case QEMU_OPTION_snapshot:
2901 snapshot = 1;
2902 break;
2903 case QEMU_OPTION_hdachs:
2905 const char *p;
2906 p = optarg;
2907 cyls = strtol(p, (char **)&p, 0);
2908 if (cyls < 1 || cyls > 16383)
2909 goto chs_fail;
2910 if (*p != ',')
2911 goto chs_fail;
2912 p++;
2913 heads = strtol(p, (char **)&p, 0);
2914 if (heads < 1 || heads > 16)
2915 goto chs_fail;
2916 if (*p != ',')
2917 goto chs_fail;
2918 p++;
2919 secs = strtol(p, (char **)&p, 0);
2920 if (secs < 1 || secs > 63)
2921 goto chs_fail;
2922 if (*p == ',') {
2923 p++;
2924 if (!strcmp(p, "large")) {
2925 translation = BIOS_ATA_TRANSLATION_LARGE;
2926 } else if (!strcmp(p, "rechs")) {
2927 translation = BIOS_ATA_TRANSLATION_RECHS;
2928 } else if (!strcmp(p, "none")) {
2929 translation = BIOS_ATA_TRANSLATION_NONE;
2930 } else if (!strcmp(p, "lba")) {
2931 translation = BIOS_ATA_TRANSLATION_LBA;
2932 } else if (!strcmp(p, "auto")) {
2933 translation = BIOS_ATA_TRANSLATION_AUTO;
2934 } else {
2935 goto chs_fail;
2937 } else if (*p != '\0') {
2938 chs_fail:
2939 fprintf(stderr, "qemu: invalid physical CHS format\n");
2940 exit(1);
2942 if (hda_opts != NULL) {
2943 char num[16];
2944 snprintf(num, sizeof(num), "%d", cyls);
2945 qemu_opt_set(hda_opts, "cyls", num);
2946 snprintf(num, sizeof(num), "%d", heads);
2947 qemu_opt_set(hda_opts, "heads", num);
2948 snprintf(num, sizeof(num), "%d", secs);
2949 qemu_opt_set(hda_opts, "secs", num);
2950 if (translation == BIOS_ATA_TRANSLATION_LARGE) {
2951 qemu_opt_set(hda_opts, "trans", "large");
2952 } else if (translation == BIOS_ATA_TRANSLATION_RECHS) {
2953 qemu_opt_set(hda_opts, "trans", "rechs");
2954 } else if (translation == BIOS_ATA_TRANSLATION_LBA) {
2955 qemu_opt_set(hda_opts, "trans", "lba");
2956 } else if (translation == BIOS_ATA_TRANSLATION_NONE) {
2957 qemu_opt_set(hda_opts, "trans", "none");
2961 break;
2962 case QEMU_OPTION_numa:
2963 opts = qemu_opts_parse(qemu_find_opts("numa"), optarg, 1);
2964 if (!opts) {
2965 exit(1);
2967 break;
2968 case QEMU_OPTION_display:
2969 display_type = select_display(optarg);
2970 break;
2971 case QEMU_OPTION_nographic:
2972 display_type = DT_NOGRAPHIC;
2973 break;
2974 case QEMU_OPTION_curses:
2975 #ifdef CONFIG_CURSES
2976 display_type = DT_CURSES;
2977 #else
2978 fprintf(stderr, "Curses support is disabled\n");
2979 exit(1);
2980 #endif
2981 break;
2982 case QEMU_OPTION_portrait:
2983 graphic_rotate = 90;
2984 break;
2985 case QEMU_OPTION_rotate:
2986 graphic_rotate = strtol(optarg, (char **) &optarg, 10);
2987 if (graphic_rotate != 0 && graphic_rotate != 90 &&
2988 graphic_rotate != 180 && graphic_rotate != 270) {
2989 fprintf(stderr,
2990 "qemu: only 90, 180, 270 deg rotation is available\n");
2991 exit(1);
2993 break;
2994 case QEMU_OPTION_kernel:
2995 qemu_opts_set(qemu_find_opts("machine"), 0, "kernel", optarg);
2996 break;
2997 case QEMU_OPTION_initrd:
2998 qemu_opts_set(qemu_find_opts("machine"), 0, "initrd", optarg);
2999 break;
3000 case QEMU_OPTION_append:
3001 qemu_opts_set(qemu_find_opts("machine"), 0, "append", optarg);
3002 break;
3003 case QEMU_OPTION_dtb:
3004 qemu_opts_set(qemu_find_opts("machine"), 0, "dtb", optarg);
3005 break;
3006 case QEMU_OPTION_cdrom:
3007 drive_add(IF_DEFAULT, 2, optarg, CDROM_OPTS);
3008 break;
3009 case QEMU_OPTION_boot:
3010 opts = qemu_opts_parse(qemu_find_opts("boot-opts"), optarg, 1);
3011 if (!opts) {
3012 exit(1);
3014 break;
3015 case QEMU_OPTION_fda:
3016 case QEMU_OPTION_fdb:
3017 drive_add(IF_FLOPPY, popt->index - QEMU_OPTION_fda,
3018 optarg, FD_OPTS);
3019 break;
3020 case QEMU_OPTION_no_fd_bootchk:
3021 fd_bootchk = 0;
3022 break;
3023 case QEMU_OPTION_netdev:
3024 if (net_client_parse(qemu_find_opts("netdev"), optarg) == -1) {
3025 exit(1);
3027 break;
3028 case QEMU_OPTION_net:
3029 if (net_client_parse(qemu_find_opts("net"), optarg) == -1) {
3030 exit(1);
3032 break;
3033 #ifdef CONFIG_LIBISCSI
3034 case QEMU_OPTION_iscsi:
3035 opts = qemu_opts_parse(qemu_find_opts("iscsi"), optarg, 0);
3036 if (!opts) {
3037 exit(1);
3039 break;
3040 #endif
3041 #ifdef CONFIG_SLIRP
3042 case QEMU_OPTION_tftp:
3043 legacy_tftp_prefix = optarg;
3044 break;
3045 case QEMU_OPTION_bootp:
3046 legacy_bootp_filename = optarg;
3047 break;
3048 case QEMU_OPTION_redir:
3049 if (net_slirp_redir(optarg) < 0)
3050 exit(1);
3051 break;
3052 #endif
3053 case QEMU_OPTION_bt:
3054 add_device_config(DEV_BT, optarg);
3055 break;
3056 case QEMU_OPTION_audio_help:
3057 AUD_help ();
3058 exit (0);
3059 break;
3060 case QEMU_OPTION_soundhw:
3061 select_soundhw (optarg);
3062 break;
3063 case QEMU_OPTION_h:
3064 help(0);
3065 break;
3066 case QEMU_OPTION_version:
3067 version();
3068 exit(0);
3069 break;
3070 case QEMU_OPTION_m: {
3071 uint64_t sz;
3072 const char *mem_str;
3073 const char *maxmem_str, *slots_str;
3075 opts = qemu_opts_parse(qemu_find_opts("memory"),
3076 optarg, 1);
3077 if (!opts) {
3078 exit(EXIT_FAILURE);
3081 mem_str = qemu_opt_get(opts, "size");
3082 if (!mem_str) {
3083 error_report("invalid -m option, missing 'size' option");
3084 exit(EXIT_FAILURE);
3086 if (!*mem_str) {
3087 error_report("missing 'size' option value");
3088 exit(EXIT_FAILURE);
3091 sz = qemu_opt_get_size(opts, "size", ram_size);
3093 /* Fix up legacy suffix-less format */
3094 if (g_ascii_isdigit(mem_str[strlen(mem_str) - 1])) {
3095 uint64_t overflow_check = sz;
3097 sz <<= 20;
3098 if ((sz >> 20) != overflow_check) {
3099 error_report("too large 'size' option value");
3100 exit(EXIT_FAILURE);
3104 /* backward compatibility behaviour for case "-m 0" */
3105 if (sz == 0) {
3106 sz = default_ram_size;
3109 sz = QEMU_ALIGN_UP(sz, 8192);
3110 ram_size = sz;
3111 if (ram_size != sz) {
3112 error_report("ram size too large");
3113 exit(EXIT_FAILURE);
3115 maxram_size = ram_size;
3117 maxmem_str = qemu_opt_get(opts, "maxmem");
3118 slots_str = qemu_opt_get(opts, "slots");
3119 if (maxmem_str && slots_str) {
3120 uint64_t slots;
3122 sz = qemu_opt_get_size(opts, "maxmem", 0);
3123 if (sz < ram_size) {
3124 error_report("invalid -m option value: maxmem "
3125 "(0x%" PRIx64 ") <= initial memory (0x"
3126 RAM_ADDR_FMT ")", sz, ram_size);
3127 exit(EXIT_FAILURE);
3130 slots = qemu_opt_get_number(opts, "slots", 0);
3131 if ((sz > ram_size) && !slots) {
3132 error_report("invalid -m option value: maxmem "
3133 "(0x%" PRIx64 ") more than initial memory (0x"
3134 RAM_ADDR_FMT ") but no hotplug slots where "
3135 "specified", sz, ram_size);
3136 exit(EXIT_FAILURE);
3139 if ((sz <= ram_size) && slots) {
3140 error_report("invalid -m option value: %"
3141 PRIu64 " hotplug slots where specified but "
3142 "maxmem (0x%" PRIx64 ") <= initial memory (0x"
3143 RAM_ADDR_FMT ")", slots, sz, ram_size);
3144 exit(EXIT_FAILURE);
3146 maxram_size = sz;
3147 ram_slots = slots;
3148 } else if ((!maxmem_str && slots_str) ||
3149 (maxmem_str && !slots_str)) {
3150 error_report("invalid -m option value: missing "
3151 "'%s' option", slots_str ? "maxmem" : "slots");
3152 exit(EXIT_FAILURE);
3154 break;
3156 #ifdef CONFIG_TPM
3157 case QEMU_OPTION_tpmdev:
3158 if (tpm_config_parse(qemu_find_opts("tpmdev"), optarg) < 0) {
3159 exit(1);
3161 break;
3162 #endif
3163 case QEMU_OPTION_mempath:
3164 mem_path = optarg;
3165 break;
3166 case QEMU_OPTION_mem_prealloc:
3167 mem_prealloc = 1;
3168 break;
3169 case QEMU_OPTION_d:
3170 log_mask = optarg;
3171 break;
3172 case QEMU_OPTION_D:
3173 log_file = optarg;
3174 break;
3175 case QEMU_OPTION_s:
3176 add_device_config(DEV_GDB, "tcp::" DEFAULT_GDBSTUB_PORT);
3177 break;
3178 case QEMU_OPTION_gdb:
3179 add_device_config(DEV_GDB, optarg);
3180 break;
3181 case QEMU_OPTION_L:
3182 if (data_dir_idx < ARRAY_SIZE(data_dir)) {
3183 data_dir[data_dir_idx++] = optarg;
3185 break;
3186 case QEMU_OPTION_bios:
3187 qemu_opts_set(qemu_find_opts("machine"), 0, "firmware", optarg);
3188 break;
3189 case QEMU_OPTION_singlestep:
3190 singlestep = 1;
3191 break;
3192 case QEMU_OPTION_S:
3193 autostart = 0;
3194 break;
3195 case QEMU_OPTION_k:
3196 keyboard_layout = optarg;
3197 break;
3198 case QEMU_OPTION_localtime:
3199 rtc_utc = 0;
3200 break;
3201 case QEMU_OPTION_vga:
3202 vga_model = optarg;
3203 default_vga = 0;
3204 break;
3205 case QEMU_OPTION_g:
3207 const char *p;
3208 int w, h, depth;
3209 p = optarg;
3210 w = strtol(p, (char **)&p, 10);
3211 if (w <= 0) {
3212 graphic_error:
3213 fprintf(stderr, "qemu: invalid resolution or depth\n");
3214 exit(1);
3216 if (*p != 'x')
3217 goto graphic_error;
3218 p++;
3219 h = strtol(p, (char **)&p, 10);
3220 if (h <= 0)
3221 goto graphic_error;
3222 if (*p == 'x') {
3223 p++;
3224 depth = strtol(p, (char **)&p, 10);
3225 if (depth != 8 && depth != 15 && depth != 16 &&
3226 depth != 24 && depth != 32)
3227 goto graphic_error;
3228 } else if (*p == '\0') {
3229 depth = graphic_depth;
3230 } else {
3231 goto graphic_error;
3234 graphic_width = w;
3235 graphic_height = h;
3236 graphic_depth = depth;
3238 break;
3239 case QEMU_OPTION_echr:
3241 char *r;
3242 term_escape_char = strtol(optarg, &r, 0);
3243 if (r == optarg)
3244 printf("Bad argument to echr\n");
3245 break;
3247 case QEMU_OPTION_monitor:
3248 default_monitor = 0;
3249 if (strncmp(optarg, "none", 4)) {
3250 monitor_parse(optarg, "readline");
3252 break;
3253 case QEMU_OPTION_qmp:
3254 monitor_parse(optarg, "control");
3255 default_monitor = 0;
3256 break;
3257 case QEMU_OPTION_mon:
3258 opts = qemu_opts_parse(qemu_find_opts("mon"), optarg, 1);
3259 if (!opts) {
3260 exit(1);
3262 default_monitor = 0;
3263 break;
3264 case QEMU_OPTION_chardev:
3265 opts = qemu_opts_parse(qemu_find_opts("chardev"), optarg, 1);
3266 if (!opts) {
3267 exit(1);
3269 break;
3270 case QEMU_OPTION_fsdev:
3271 olist = qemu_find_opts("fsdev");
3272 if (!olist) {
3273 fprintf(stderr, "fsdev is not supported by this qemu build.\n");
3274 exit(1);
3276 opts = qemu_opts_parse(olist, optarg, 1);
3277 if (!opts) {
3278 exit(1);
3280 break;
3281 case QEMU_OPTION_virtfs: {
3282 QemuOpts *fsdev;
3283 QemuOpts *device;
3284 const char *writeout, *sock_fd, *socket;
3286 olist = qemu_find_opts("virtfs");
3287 if (!olist) {
3288 fprintf(stderr, "virtfs is not supported by this qemu build.\n");
3289 exit(1);
3291 opts = qemu_opts_parse(olist, optarg, 1);
3292 if (!opts) {
3293 exit(1);
3296 if (qemu_opt_get(opts, "fsdriver") == NULL ||
3297 qemu_opt_get(opts, "mount_tag") == NULL) {
3298 fprintf(stderr, "Usage: -virtfs fsdriver,mount_tag=tag.\n");
3299 exit(1);
3301 fsdev = qemu_opts_create(qemu_find_opts("fsdev"),
3302 qemu_opt_get(opts, "mount_tag"),
3303 1, NULL);
3304 if (!fsdev) {
3305 fprintf(stderr, "duplicate fsdev id: %s\n",
3306 qemu_opt_get(opts, "mount_tag"));
3307 exit(1);
3310 writeout = qemu_opt_get(opts, "writeout");
3311 if (writeout) {
3312 #ifdef CONFIG_SYNC_FILE_RANGE
3313 qemu_opt_set(fsdev, "writeout", writeout);
3314 #else
3315 fprintf(stderr, "writeout=immediate not supported on "
3316 "this platform\n");
3317 exit(1);
3318 #endif
3320 qemu_opt_set(fsdev, "fsdriver", qemu_opt_get(opts, "fsdriver"));
3321 qemu_opt_set(fsdev, "path", qemu_opt_get(opts, "path"));
3322 qemu_opt_set(fsdev, "security_model",
3323 qemu_opt_get(opts, "security_model"));
3324 socket = qemu_opt_get(opts, "socket");
3325 if (socket) {
3326 qemu_opt_set(fsdev, "socket", socket);
3328 sock_fd = qemu_opt_get(opts, "sock_fd");
3329 if (sock_fd) {
3330 qemu_opt_set(fsdev, "sock_fd", sock_fd);
3333 qemu_opt_set_bool(fsdev, "readonly",
3334 qemu_opt_get_bool(opts, "readonly", 0));
3335 device = qemu_opts_create(qemu_find_opts("device"), NULL, 0,
3336 &error_abort);
3337 qemu_opt_set(device, "driver", "virtio-9p-pci");
3338 qemu_opt_set(device, "fsdev",
3339 qemu_opt_get(opts, "mount_tag"));
3340 qemu_opt_set(device, "mount_tag",
3341 qemu_opt_get(opts, "mount_tag"));
3342 break;
3344 case QEMU_OPTION_virtfs_synth: {
3345 QemuOpts *fsdev;
3346 QemuOpts *device;
3348 fsdev = qemu_opts_create(qemu_find_opts("fsdev"), "v_synth",
3349 1, NULL);
3350 if (!fsdev) {
3351 fprintf(stderr, "duplicate option: %s\n", "virtfs_synth");
3352 exit(1);
3354 qemu_opt_set(fsdev, "fsdriver", "synth");
3356 device = qemu_opts_create(qemu_find_opts("device"), NULL, 0,
3357 &error_abort);
3358 qemu_opt_set(device, "driver", "virtio-9p-pci");
3359 qemu_opt_set(device, "fsdev", "v_synth");
3360 qemu_opt_set(device, "mount_tag", "v_synth");
3361 break;
3363 case QEMU_OPTION_serial:
3364 add_device_config(DEV_SERIAL, optarg);
3365 default_serial = 0;
3366 if (strncmp(optarg, "mon:", 4) == 0) {
3367 default_monitor = 0;
3369 break;
3370 case QEMU_OPTION_watchdog:
3371 if (watchdog) {
3372 fprintf(stderr,
3373 "qemu: only one watchdog option may be given\n");
3374 return 1;
3376 watchdog = optarg;
3377 break;
3378 case QEMU_OPTION_watchdog_action:
3379 if (select_watchdog_action(optarg) == -1) {
3380 fprintf(stderr, "Unknown -watchdog-action parameter\n");
3381 exit(1);
3383 break;
3384 case QEMU_OPTION_virtiocon:
3385 add_device_config(DEV_VIRTCON, optarg);
3386 default_virtcon = 0;
3387 if (strncmp(optarg, "mon:", 4) == 0) {
3388 default_monitor = 0;
3390 break;
3391 case QEMU_OPTION_parallel:
3392 add_device_config(DEV_PARALLEL, optarg);
3393 default_parallel = 0;
3394 if (strncmp(optarg, "mon:", 4) == 0) {
3395 default_monitor = 0;
3397 break;
3398 case QEMU_OPTION_debugcon:
3399 add_device_config(DEV_DEBUGCON, optarg);
3400 break;
3401 case QEMU_OPTION_loadvm:
3402 loadvm = optarg;
3403 break;
3404 case QEMU_OPTION_full_screen:
3405 full_screen = 1;
3406 break;
3407 case QEMU_OPTION_no_frame:
3408 no_frame = 1;
3409 break;
3410 case QEMU_OPTION_alt_grab:
3411 alt_grab = 1;
3412 break;
3413 case QEMU_OPTION_ctrl_grab:
3414 ctrl_grab = 1;
3415 break;
3416 case QEMU_OPTION_no_quit:
3417 no_quit = 1;
3418 break;
3419 case QEMU_OPTION_sdl:
3420 #ifdef CONFIG_SDL
3421 display_type = DT_SDL;
3422 break;
3423 #else
3424 fprintf(stderr, "SDL support is disabled\n");
3425 exit(1);
3426 #endif
3427 case QEMU_OPTION_pidfile:
3428 pid_file = optarg;
3429 break;
3430 case QEMU_OPTION_win2k_hack:
3431 win2k_install_hack = 1;
3432 break;
3433 case QEMU_OPTION_rtc_td_hack: {
3434 static GlobalProperty slew_lost_ticks[] = {
3436 .driver = "mc146818rtc",
3437 .property = "lost_tick_policy",
3438 .value = "slew",
3440 { /* end of list */ }
3443 qdev_prop_register_global_list(slew_lost_ticks);
3444 break;
3446 case QEMU_OPTION_acpitable:
3447 opts = qemu_opts_parse(qemu_find_opts("acpi"), optarg, 1);
3448 if (!opts) {
3449 exit(1);
3451 do_acpitable_option(opts);
3452 break;
3453 case QEMU_OPTION_smbios:
3454 opts = qemu_opts_parse(qemu_find_opts("smbios"), optarg, 0);
3455 if (!opts) {
3456 exit(1);
3458 do_smbios_option(opts);
3459 break;
3460 case QEMU_OPTION_enable_kvm:
3461 olist = qemu_find_opts("machine");
3462 qemu_opts_parse(olist, "accel=kvm", 0);
3463 break;
3464 case QEMU_OPTION_machine:
3465 olist = qemu_find_opts("machine");
3466 opts = qemu_opts_parse(olist, optarg, 1);
3467 if (!opts) {
3468 exit(1);
3470 optarg = qemu_opt_get(opts, "type");
3471 if (optarg) {
3472 machine_class = machine_parse(optarg);
3474 break;
3475 case QEMU_OPTION_no_kvm:
3476 olist = qemu_find_opts("machine");
3477 qemu_opts_parse(olist, "accel=tcg", 0);
3478 break;
3479 case QEMU_OPTION_no_kvm_pit: {
3480 fprintf(stderr, "Warning: KVM PIT can no longer be disabled "
3481 "separately.\n");
3482 break;
3484 case QEMU_OPTION_no_kvm_pit_reinjection: {
3485 static GlobalProperty kvm_pit_lost_tick_policy[] = {
3487 .driver = "kvm-pit",
3488 .property = "lost_tick_policy",
3489 .value = "discard",
3491 { /* end of list */ }
3494 fprintf(stderr, "Warning: option deprecated, use "
3495 "lost_tick_policy property of kvm-pit instead.\n");
3496 qdev_prop_register_global_list(kvm_pit_lost_tick_policy);
3497 break;
3499 case QEMU_OPTION_usb:
3500 olist = qemu_find_opts("machine");
3501 qemu_opts_parse(olist, "usb=on", 0);
3502 break;
3503 case QEMU_OPTION_usbdevice:
3504 olist = qemu_find_opts("machine");
3505 qemu_opts_parse(olist, "usb=on", 0);
3506 add_device_config(DEV_USB, optarg);
3507 break;
3508 case QEMU_OPTION_device:
3509 if (!qemu_opts_parse(qemu_find_opts("device"), optarg, 1)) {
3510 exit(1);
3512 break;
3513 case QEMU_OPTION_smp:
3514 if (!qemu_opts_parse(qemu_find_opts("smp-opts"), optarg, 1)) {
3515 exit(1);
3517 break;
3518 case QEMU_OPTION_vnc:
3519 #ifdef CONFIG_VNC
3520 display_remote++;
3521 vnc_display = optarg;
3522 #else
3523 fprintf(stderr, "VNC support is disabled\n");
3524 exit(1);
3525 #endif
3526 break;
3527 case QEMU_OPTION_no_acpi:
3528 acpi_enabled = 0;
3529 break;
3530 case QEMU_OPTION_no_hpet:
3531 no_hpet = 1;
3532 break;
3533 case QEMU_OPTION_balloon:
3534 if (balloon_parse(optarg) < 0) {
3535 fprintf(stderr, "Unknown -balloon argument %s\n", optarg);
3536 exit(1);
3538 break;
3539 case QEMU_OPTION_no_reboot:
3540 no_reboot = 1;
3541 break;
3542 case QEMU_OPTION_no_shutdown:
3543 no_shutdown = 1;
3544 break;
3545 case QEMU_OPTION_show_cursor:
3546 cursor_hide = 0;
3547 break;
3548 case QEMU_OPTION_uuid:
3549 if(qemu_uuid_parse(optarg, qemu_uuid) < 0) {
3550 fprintf(stderr, "Fail to parse UUID string."
3551 " Wrong format.\n");
3552 exit(1);
3554 qemu_uuid_set = true;
3555 break;
3556 case QEMU_OPTION_option_rom:
3557 if (nb_option_roms >= MAX_OPTION_ROMS) {
3558 fprintf(stderr, "Too many option ROMs\n");
3559 exit(1);
3561 opts = qemu_opts_parse(qemu_find_opts("option-rom"), optarg, 1);
3562 if (!opts) {
3563 exit(1);
3565 option_rom[nb_option_roms].name = qemu_opt_get(opts, "romfile");
3566 option_rom[nb_option_roms].bootindex =
3567 qemu_opt_get_number(opts, "bootindex", -1);
3568 if (!option_rom[nb_option_roms].name) {
3569 fprintf(stderr, "Option ROM file is not specified\n");
3570 exit(1);
3572 nb_option_roms++;
3573 break;
3574 case QEMU_OPTION_semihosting:
3575 semihosting_enabled = 1;
3576 break;
3577 case QEMU_OPTION_tdf:
3578 fprintf(stderr, "Warning: user space PIT time drift fix "
3579 "is no longer supported.\n");
3580 break;
3581 case QEMU_OPTION_name:
3582 opts = qemu_opts_parse(qemu_find_opts("name"), optarg, 1);
3583 if (!opts) {
3584 exit(1);
3586 break;
3587 case QEMU_OPTION_prom_env:
3588 if (nb_prom_envs >= MAX_PROM_ENVS) {
3589 fprintf(stderr, "Too many prom variables\n");
3590 exit(1);
3592 prom_envs[nb_prom_envs] = optarg;
3593 nb_prom_envs++;
3594 break;
3595 case QEMU_OPTION_old_param:
3596 old_param = 1;
3597 break;
3598 case QEMU_OPTION_clock:
3599 /* Clock options no longer exist. Keep this option for
3600 * backward compatibility.
3602 break;
3603 case QEMU_OPTION_startdate:
3604 configure_rtc_date_offset(optarg, 1);
3605 break;
3606 case QEMU_OPTION_rtc:
3607 opts = qemu_opts_parse(qemu_find_opts("rtc"), optarg, 0);
3608 if (!opts) {
3609 exit(1);
3611 configure_rtc(opts);
3612 break;
3613 case QEMU_OPTION_tb_size:
3614 tcg_tb_size = strtol(optarg, NULL, 0);
3615 if (tcg_tb_size < 0) {
3616 tcg_tb_size = 0;
3618 break;
3619 case QEMU_OPTION_icount:
3620 icount_opts = qemu_opts_parse(qemu_find_opts("icount"),
3621 optarg, 1);
3622 if (!icount_opts) {
3623 exit(1);
3625 break;
3626 case QEMU_OPTION_incoming:
3627 incoming = optarg;
3628 runstate_set(RUN_STATE_INMIGRATE);
3629 break;
3630 case QEMU_OPTION_nodefaults:
3631 has_defaults = 0;
3632 break;
3633 case QEMU_OPTION_xen_domid:
3634 if (!(xen_available())) {
3635 printf("Option %s not supported for this target\n", popt->name);
3636 exit(1);
3638 xen_domid = atoi(optarg);
3639 break;
3640 case QEMU_OPTION_xen_create:
3641 if (!(xen_available())) {
3642 printf("Option %s not supported for this target\n", popt->name);
3643 exit(1);
3645 xen_mode = XEN_CREATE;
3646 break;
3647 case QEMU_OPTION_xen_attach:
3648 if (!(xen_available())) {
3649 printf("Option %s not supported for this target\n", popt->name);
3650 exit(1);
3652 xen_mode = XEN_ATTACH;
3653 break;
3654 case QEMU_OPTION_trace:
3656 opts = qemu_opts_parse(qemu_find_opts("trace"), optarg, 0);
3657 if (!opts) {
3658 exit(1);
3660 trace_events = qemu_opt_get(opts, "events");
3661 trace_file = qemu_opt_get(opts, "file");
3662 break;
3664 case QEMU_OPTION_readconfig:
3666 int ret = qemu_read_config_file(optarg);
3667 if (ret < 0) {
3668 fprintf(stderr, "read config %s: %s\n", optarg,
3669 strerror(-ret));
3670 exit(1);
3672 break;
3674 case QEMU_OPTION_spice:
3675 olist = qemu_find_opts("spice");
3676 if (!olist) {
3677 fprintf(stderr, "spice is not supported by this qemu build.\n");
3678 exit(1);
3680 opts = qemu_opts_parse(olist, optarg, 0);
3681 if (!opts) {
3682 exit(1);
3684 display_remote++;
3685 break;
3686 case QEMU_OPTION_writeconfig:
3688 FILE *fp;
3689 if (strcmp(optarg, "-") == 0) {
3690 fp = stdout;
3691 } else {
3692 fp = fopen(optarg, "w");
3693 if (fp == NULL) {
3694 fprintf(stderr, "open %s: %s\n", optarg, strerror(errno));
3695 exit(1);
3698 qemu_config_write(fp);
3699 if (fp != stdout) {
3700 fclose(fp);
3702 break;
3704 case QEMU_OPTION_qtest:
3705 qtest_chrdev = optarg;
3706 break;
3707 case QEMU_OPTION_qtest_log:
3708 qtest_log = optarg;
3709 break;
3710 case QEMU_OPTION_sandbox:
3711 opts = qemu_opts_parse(qemu_find_opts("sandbox"), optarg, 1);
3712 if (!opts) {
3713 exit(1);
3715 break;
3716 case QEMU_OPTION_add_fd:
3717 #ifndef _WIN32
3718 opts = qemu_opts_parse(qemu_find_opts("add-fd"), optarg, 0);
3719 if (!opts) {
3720 exit(1);
3722 #else
3723 error_report("File descriptor passing is disabled on this "
3724 "platform");
3725 exit(1);
3726 #endif
3727 break;
3728 case QEMU_OPTION_object:
3729 opts = qemu_opts_parse(qemu_find_opts("object"), optarg, 1);
3730 if (!opts) {
3731 exit(1);
3733 break;
3734 case QEMU_OPTION_realtime:
3735 opts = qemu_opts_parse(qemu_find_opts("realtime"), optarg, 0);
3736 if (!opts) {
3737 exit(1);
3739 enable_mlock = qemu_opt_get_bool(opts, "mlock", true);
3740 break;
3741 case QEMU_OPTION_msg:
3742 opts = qemu_opts_parse(qemu_find_opts("msg"), optarg, 0);
3743 if (!opts) {
3744 exit(1);
3746 configure_msg(opts);
3747 break;
3748 case QEMU_OPTION_dump_vmstate:
3749 vmstate_dump_file = fopen(optarg, "w");
3750 if (vmstate_dump_file == NULL) {
3751 fprintf(stderr, "open %s: %s\n", optarg, strerror(errno));
3752 exit(1);
3754 break;
3755 default:
3756 os_parse_cmd_args(popt->index, optarg);
3760 loc_set_none();
3762 os_daemonize();
3764 if (qemu_init_main_loop(&main_loop_err)) {
3765 error_report("%s", error_get_pretty(main_loop_err));
3766 exit(1);
3769 if (qemu_opts_foreach(qemu_find_opts("sandbox"), parse_sandbox, NULL, 0)) {
3770 exit(1);
3773 if (qemu_opts_foreach(qemu_find_opts("name"), parse_name, NULL, 1)) {
3774 exit(1);
3777 #ifndef _WIN32
3778 if (qemu_opts_foreach(qemu_find_opts("add-fd"), parse_add_fd, NULL, 1)) {
3779 exit(1);
3782 if (qemu_opts_foreach(qemu_find_opts("add-fd"), cleanup_add_fd, NULL, 1)) {
3783 exit(1);
3785 #endif
3787 if (machine_class == NULL) {
3788 fprintf(stderr, "No machine specified, and there is no default.\n"
3789 "Use -machine help to list supported machines!\n");
3790 exit(1);
3793 current_machine = MACHINE(object_new(object_class_get_name(
3794 OBJECT_CLASS(machine_class))));
3795 object_property_add_child(object_get_root(), "machine",
3796 OBJECT(current_machine), &error_abort);
3797 cpu_exec_init_all();
3799 if (machine_class->hw_version) {
3800 qemu_set_version(machine_class->hw_version);
3803 /* Init CPU def lists, based on config
3804 * - Must be called after all the qemu_read_config_file() calls
3805 * - Must be called before list_cpus()
3806 * - Must be called before machine->init()
3808 cpudef_init();
3810 if (cpu_model && is_help_option(cpu_model)) {
3811 list_cpus(stdout, &fprintf, cpu_model);
3812 exit(0);
3815 /* Open the logfile at this point, if necessary. We can't open the logfile
3816 * when encountering either of the logging options (-d or -D) because the
3817 * other one may be encountered later on the command line, changing the
3818 * location or level of logging.
3820 if (log_mask) {
3821 int mask;
3822 if (log_file) {
3823 qemu_set_log_filename(log_file);
3826 mask = qemu_str_to_log_mask(log_mask);
3827 if (!mask) {
3828 qemu_print_log_usage(stdout);
3829 exit(1);
3831 qemu_set_log(mask);
3834 if (!is_daemonized()) {
3835 if (!trace_init_backends(trace_events, trace_file)) {
3836 exit(1);
3840 /* If no data_dir is specified then try to find it relative to the
3841 executable path. */
3842 if (data_dir_idx < ARRAY_SIZE(data_dir)) {
3843 data_dir[data_dir_idx] = os_find_datadir();
3844 if (data_dir[data_dir_idx] != NULL) {
3845 data_dir_idx++;
3848 /* If all else fails use the install path specified when building. */
3849 if (data_dir_idx < ARRAY_SIZE(data_dir)) {
3850 data_dir[data_dir_idx++] = CONFIG_QEMU_DATADIR;
3853 smp_parse(qemu_opts_find(qemu_find_opts("smp-opts"), NULL));
3855 machine_class->max_cpus = machine_class->max_cpus ?: 1; /* Default to UP */
3856 if (smp_cpus > machine_class->max_cpus) {
3857 fprintf(stderr, "Number of SMP cpus requested (%d), exceeds max cpus "
3858 "supported by machine `%s' (%d)\n", smp_cpus,
3859 machine_class->name, machine_class->max_cpus);
3860 exit(1);
3864 * Get the default machine options from the machine if it is not already
3865 * specified either by the configuration file or by the command line.
3867 if (machine_class->default_machine_opts) {
3868 qemu_opts_set_defaults(qemu_find_opts("machine"),
3869 machine_class->default_machine_opts, 0);
3872 qemu_opts_foreach(qemu_find_opts("device"), default_driver_check, NULL, 0);
3873 qemu_opts_foreach(qemu_find_opts("global"), default_driver_check, NULL, 0);
3875 if (!vga_model && !default_vga) {
3876 vga_interface_type = VGA_DEVICE;
3878 if (!has_defaults || machine_class->no_serial) {
3879 default_serial = 0;
3881 if (!has_defaults || machine_class->no_parallel) {
3882 default_parallel = 0;
3884 if (!has_defaults || !machine_class->use_virtcon) {
3885 default_virtcon = 0;
3887 if (!has_defaults || !machine_class->use_sclp) {
3888 default_sclp = 0;
3890 if (!has_defaults || machine_class->no_floppy) {
3891 default_floppy = 0;
3893 if (!has_defaults || machine_class->no_cdrom) {
3894 default_cdrom = 0;
3896 if (!has_defaults || machine_class->no_sdcard) {
3897 default_sdcard = 0;
3899 if (!has_defaults) {
3900 default_monitor = 0;
3901 default_net = 0;
3902 default_vga = 0;
3905 if (is_daemonized()) {
3906 /* According to documentation and historically, -nographic redirects
3907 * serial port, parallel port and monitor to stdio, which does not work
3908 * with -daemonize. We can redirect these to null instead, but since
3909 * -nographic is legacy, let's just error out.
3910 * We disallow -nographic only if all other ports are not redirected
3911 * explicitly, to not break existing legacy setups which uses
3912 * -nographic _and_ redirects all ports explicitly - this is valid
3913 * usage, -nographic is just a no-op in this case.
3915 if (display_type == DT_NOGRAPHIC
3916 && (default_parallel || default_serial
3917 || default_monitor || default_virtcon)) {
3918 fprintf(stderr, "-nographic can not be used with -daemonize\n");
3919 exit(1);
3921 #ifdef CONFIG_CURSES
3922 if (display_type == DT_CURSES) {
3923 fprintf(stderr, "curses display can not be used with -daemonize\n");
3924 exit(1);
3926 #endif
3929 if (display_type == DT_NOGRAPHIC) {
3930 if (default_parallel)
3931 add_device_config(DEV_PARALLEL, "null");
3932 if (default_serial && default_monitor) {
3933 add_device_config(DEV_SERIAL, "mon:stdio");
3934 } else if (default_virtcon && default_monitor) {
3935 add_device_config(DEV_VIRTCON, "mon:stdio");
3936 } else if (default_sclp && default_monitor) {
3937 add_device_config(DEV_SCLP, "mon:stdio");
3938 } else {
3939 if (default_serial)
3940 add_device_config(DEV_SERIAL, "stdio");
3941 if (default_virtcon)
3942 add_device_config(DEV_VIRTCON, "stdio");
3943 if (default_sclp) {
3944 add_device_config(DEV_SCLP, "stdio");
3946 if (default_monitor)
3947 monitor_parse("stdio", "readline");
3949 } else {
3950 if (default_serial)
3951 add_device_config(DEV_SERIAL, "vc:80Cx24C");
3952 if (default_parallel)
3953 add_device_config(DEV_PARALLEL, "vc:80Cx24C");
3954 if (default_monitor)
3955 monitor_parse("vc:80Cx24C", "readline");
3956 if (default_virtcon)
3957 add_device_config(DEV_VIRTCON, "vc:80Cx24C");
3958 if (default_sclp) {
3959 add_device_config(DEV_SCLP, "vc:80Cx24C");
3963 if (display_type == DT_DEFAULT && !display_remote) {
3964 #if defined(CONFIG_GTK)
3965 display_type = DT_GTK;
3966 #elif defined(CONFIG_SDL) || defined(CONFIG_COCOA)
3967 display_type = DT_SDL;
3968 #elif defined(CONFIG_VNC)
3969 vnc_display = "localhost:0,to=99";
3970 show_vnc_port = 1;
3971 #else
3972 display_type = DT_NONE;
3973 #endif
3976 if ((no_frame || alt_grab || ctrl_grab) && display_type != DT_SDL) {
3977 fprintf(stderr, "-no-frame, -alt-grab and -ctrl-grab are only valid "
3978 "for SDL, ignoring option\n");
3980 if (no_quit && (display_type != DT_GTK && display_type != DT_SDL)) {
3981 fprintf(stderr, "-no-quit is only valid for GTK and SDL, "
3982 "ignoring option\n");
3985 #if defined(CONFIG_GTK)
3986 if (display_type == DT_GTK) {
3987 early_gtk_display_init();
3989 #endif
3991 socket_init();
3993 if (qemu_opts_foreach(qemu_find_opts("chardev"), chardev_init_func, NULL, 1) != 0)
3994 exit(1);
3995 #ifdef CONFIG_VIRTFS
3996 if (qemu_opts_foreach(qemu_find_opts("fsdev"), fsdev_init_func, NULL, 1) != 0) {
3997 exit(1);
3999 #endif
4001 if (pid_file && qemu_create_pidfile(pid_file) != 0) {
4002 os_pidfile_error();
4003 exit(1);
4006 /* store value for the future use */
4007 qemu_opt_set_number(qemu_find_opts_singleton("memory"), "size", ram_size);
4009 if (qemu_opts_foreach(qemu_find_opts("device"), device_help_func, NULL, 0)
4010 != 0) {
4011 exit(0);
4014 if (qemu_opts_foreach(qemu_find_opts("object"),
4015 object_create, NULL, 0) != 0) {
4016 exit(1);
4019 machine_opts = qemu_get_machine_opts();
4020 if (qemu_opt_foreach(machine_opts, machine_set_property, current_machine,
4021 1) < 0) {
4022 object_unref(OBJECT(current_machine));
4023 exit(1);
4026 configure_accelerator(current_machine);
4028 if (qtest_chrdev) {
4029 Error *local_err = NULL;
4030 qtest_init(qtest_chrdev, qtest_log, &local_err);
4031 if (local_err) {
4032 error_report("%s", error_get_pretty(local_err));
4033 error_free(local_err);
4034 exit(1);
4038 machine_opts = qemu_get_machine_opts();
4039 kernel_filename = qemu_opt_get(machine_opts, "kernel");
4040 initrd_filename = qemu_opt_get(machine_opts, "initrd");
4041 kernel_cmdline = qemu_opt_get(machine_opts, "append");
4042 bios_name = qemu_opt_get(machine_opts, "firmware");
4044 boot_order = machine_class->default_boot_order;
4045 opts = qemu_opts_find(qemu_find_opts("boot-opts"), NULL);
4046 if (opts) {
4047 char *normal_boot_order;
4048 const char *order, *once;
4050 order = qemu_opt_get(opts, "order");
4051 if (order) {
4052 validate_bootdevices(order);
4053 boot_order = order;
4056 once = qemu_opt_get(opts, "once");
4057 if (once) {
4058 validate_bootdevices(once);
4059 normal_boot_order = g_strdup(boot_order);
4060 boot_order = once;
4061 qemu_register_reset(restore_boot_order, normal_boot_order);
4064 boot_menu = qemu_opt_get_bool(opts, "menu", boot_menu);
4065 boot_strict = qemu_opt_get_bool(opts, "strict", false);
4068 if (!kernel_cmdline) {
4069 kernel_cmdline = "";
4070 current_machine->kernel_cmdline = (char *)kernel_cmdline;
4073 linux_boot = (kernel_filename != NULL);
4075 if (!linux_boot && *kernel_cmdline != '\0') {
4076 fprintf(stderr, "-append only allowed with -kernel option\n");
4077 exit(1);
4080 if (!linux_boot && initrd_filename != NULL) {
4081 fprintf(stderr, "-initrd only allowed with -kernel option\n");
4082 exit(1);
4085 if (!linux_boot && qemu_opt_get(machine_opts, "dtb")) {
4086 fprintf(stderr, "-dtb only allowed with -kernel option\n");
4087 exit(1);
4090 os_set_line_buffering();
4092 qemu_init_cpu_loop();
4093 qemu_mutex_lock_iothread();
4095 #ifdef CONFIG_SPICE
4096 /* spice needs the timers to be initialized by this point */
4097 qemu_spice_init();
4098 #endif
4100 cpu_ticks_init();
4101 if (icount_opts) {
4102 if (kvm_enabled() || xen_enabled()) {
4103 fprintf(stderr, "-icount is not allowed with kvm or xen\n");
4104 exit(1);
4106 configure_icount(icount_opts, &error_abort);
4107 qemu_opts_del(icount_opts);
4110 /* clean up network at qemu process termination */
4111 atexit(&net_cleanup);
4113 if (net_init_clients() < 0) {
4114 exit(1);
4117 #ifdef CONFIG_TPM
4118 if (tpm_init() < 0) {
4119 exit(1);
4121 #endif
4123 /* init the bluetooth world */
4124 if (foreach_device_config(DEV_BT, bt_parse))
4125 exit(1);
4127 if (!xen_enabled()) {
4128 /* On 32-bit hosts, QEMU is limited by virtual address space */
4129 if (ram_size > (2047 << 20) && HOST_LONG_BITS == 32) {
4130 fprintf(stderr, "qemu: at most 2047 MB RAM can be simulated\n");
4131 exit(1);
4135 blk_mig_init();
4136 ram_mig_init();
4138 /* If the currently selected machine wishes to override the units-per-bus
4139 * property of its default HBA interface type, do so now. */
4140 if (machine_class->units_per_default_bus) {
4141 override_max_devs(machine_class->block_default_type,
4142 machine_class->units_per_default_bus);
4145 /* open the virtual block devices */
4146 if (snapshot)
4147 qemu_opts_foreach(qemu_find_opts("drive"), drive_enable_snapshot, NULL, 0);
4148 if (qemu_opts_foreach(qemu_find_opts("drive"), drive_init_func,
4149 &machine_class->block_default_type, 1) != 0) {
4150 exit(1);
4153 default_drive(default_cdrom, snapshot, machine_class->block_default_type, 2,
4154 CDROM_OPTS);
4155 default_drive(default_floppy, snapshot, IF_FLOPPY, 0, FD_OPTS);
4156 default_drive(default_sdcard, snapshot, IF_SD, 0, SD_OPTS);
4158 if (qemu_opts_foreach(qemu_find_opts("numa"), numa_init_func,
4159 NULL, 1) != 0) {
4160 exit(1);
4163 set_numa_nodes();
4165 if (qemu_opts_foreach(qemu_find_opts("mon"), mon_init_func, NULL, 1) != 0) {
4166 exit(1);
4169 if (foreach_device_config(DEV_SERIAL, serial_parse) < 0)
4170 exit(1);
4171 if (foreach_device_config(DEV_PARALLEL, parallel_parse) < 0)
4172 exit(1);
4173 if (foreach_device_config(DEV_VIRTCON, virtcon_parse) < 0)
4174 exit(1);
4175 if (foreach_device_config(DEV_SCLP, sclp_parse) < 0) {
4176 exit(1);
4178 if (foreach_device_config(DEV_DEBUGCON, debugcon_parse) < 0)
4179 exit(1);
4181 /* If no default VGA is requested, the default is "none". */
4182 if (default_vga) {
4183 if (cirrus_vga_available()) {
4184 vga_model = "cirrus";
4185 } else if (vga_available()) {
4186 vga_model = "std";
4189 if (vga_model) {
4190 select_vgahw(vga_model);
4193 if (watchdog) {
4194 i = select_watchdog(watchdog);
4195 if (i > 0)
4196 exit (i == 1 ? 1 : 0);
4199 if (machine_class->compat_props) {
4200 qdev_prop_register_global_list(machine_class->compat_props);
4202 qemu_add_globals();
4204 qdev_machine_init();
4206 current_machine->ram_size = ram_size;
4207 current_machine->maxram_size = maxram_size;
4208 current_machine->ram_slots = ram_slots;
4209 current_machine->boot_order = boot_order;
4210 current_machine->cpu_model = cpu_model;
4212 machine_class->init(current_machine);
4214 realtime_init();
4216 audio_init();
4218 cpu_synchronize_all_post_init();
4220 set_numa_modes();
4222 /* init USB devices */
4223 if (usb_enabled(false)) {
4224 if (foreach_device_config(DEV_USB, usb_parse) < 0)
4225 exit(1);
4228 /* init generic devices */
4229 if (qemu_opts_foreach(qemu_find_opts("device"), device_init_func, NULL, 1) != 0)
4230 exit(1);
4232 /* Did we create any drives that we failed to create a device for? */
4233 drive_check_orphaned();
4235 net_check_clients();
4237 ds = init_displaystate();
4239 /* init local displays */
4240 switch (display_type) {
4241 case DT_NOGRAPHIC:
4242 (void)ds; /* avoid warning if no display is configured */
4243 break;
4244 #if defined(CONFIG_CURSES)
4245 case DT_CURSES:
4246 curses_display_init(ds, full_screen);
4247 break;
4248 #endif
4249 #if defined(CONFIG_SDL)
4250 case DT_SDL:
4251 sdl_display_init(ds, full_screen, no_frame);
4252 break;
4253 #elif defined(CONFIG_COCOA)
4254 case DT_SDL:
4255 cocoa_display_init(ds, full_screen);
4256 break;
4257 #endif
4258 #if defined(CONFIG_GTK)
4259 case DT_GTK:
4260 gtk_display_init(ds, full_screen, grab_on_hover);
4261 break;
4262 #endif
4263 default:
4264 break;
4267 /* must be after terminal init, SDL library changes signal handlers */
4268 os_setup_signal_handling();
4270 #ifdef CONFIG_VNC
4271 /* init remote displays */
4272 if (vnc_display) {
4273 Error *local_err = NULL;
4274 vnc_display_init(ds);
4275 vnc_display_open(ds, vnc_display, &local_err);
4276 if (local_err != NULL) {
4277 error_report("Failed to start VNC server on `%s': %s",
4278 vnc_display, error_get_pretty(local_err));
4279 error_free(local_err);
4280 exit(1);
4283 if (show_vnc_port) {
4284 printf("VNC server running on `%s'\n", vnc_display_local_addr(ds));
4287 #endif
4288 #ifdef CONFIG_SPICE
4289 if (using_spice) {
4290 qemu_spice_display_init();
4292 #endif
4294 if (foreach_device_config(DEV_GDB, gdbserver_start) < 0) {
4295 exit(1);
4298 qdev_machine_creation_done();
4300 if (rom_load_all() != 0) {
4301 fprintf(stderr, "rom loading failed\n");
4302 exit(1);
4305 /* TODO: once all bus devices are qdevified, this should be done
4306 * when bus is created by qdev.c */
4307 qemu_register_reset(qbus_reset_all_fn, sysbus_get_default());
4308 qemu_run_machine_init_done_notifiers();
4310 /* Done notifiers can load ROMs */
4311 rom_load_done();
4313 qemu_system_reset(VMRESET_SILENT);
4314 if (loadvm) {
4315 if (load_vmstate(loadvm) < 0) {
4316 autostart = 0;
4320 qdev_prop_check_globals();
4321 if (vmstate_dump_file) {
4322 /* dump and exit */
4323 dump_vmstate_json_to_file(vmstate_dump_file);
4324 return 0;
4327 if (incoming) {
4328 Error *local_err = NULL;
4329 qemu_start_incoming_migration(incoming, &local_err);
4330 if (local_err) {
4331 error_report("-incoming %s: %s", incoming,
4332 error_get_pretty(local_err));
4333 error_free(local_err);
4334 exit(1);
4336 } else if (autostart) {
4337 vm_start();
4340 os_setup_post();
4342 if (is_daemonized()) {
4343 if (!trace_init_backends(trace_events, trace_file)) {
4344 exit(1);
4348 main_loop();
4349 bdrv_close_all();
4350 pause_all_vcpus();
4351 res_free();
4352 #ifdef CONFIG_TPM
4353 tpm_cleanup();
4354 #endif
4356 return 0;