pc: Update rtc_cmos in pc_cpu_plug
[qemu/rayw.git] / vl.c
blobd32efa0df062f853827761b83b22b1e20d0edf57
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->family = qm->family;
1420 mc->name = qm->name;
1421 mc->alias = qm->alias;
1422 mc->desc = qm->desc;
1423 mc->init = qm->init;
1424 mc->reset = qm->reset;
1425 mc->hot_add_cpu = qm->hot_add_cpu;
1426 mc->kvm_type = qm->kvm_type;
1427 mc->block_default_type = qm->block_default_type;
1428 mc->units_per_default_bus = qm->units_per_default_bus;
1429 mc->max_cpus = qm->max_cpus;
1430 mc->no_serial = qm->no_serial;
1431 mc->no_parallel = qm->no_parallel;
1432 mc->use_virtcon = qm->use_virtcon;
1433 mc->use_sclp = qm->use_sclp;
1434 mc->no_floppy = qm->no_floppy;
1435 mc->no_cdrom = qm->no_cdrom;
1436 mc->no_sdcard = qm->no_sdcard;
1437 mc->is_default = qm->is_default;
1438 mc->default_machine_opts = qm->default_machine_opts;
1439 mc->default_boot_order = qm->default_boot_order;
1440 mc->compat_props = qm->compat_props;
1441 mc->hw_version = qm->hw_version;
1444 int qemu_register_machine(QEMUMachine *m)
1446 char *name = g_strconcat(m->name, TYPE_MACHINE_SUFFIX, NULL);
1447 TypeInfo ti = {
1448 .name = name,
1449 .parent = TYPE_MACHINE,
1450 .class_init = machine_class_init,
1451 .class_data = (void *)m,
1454 type_register(&ti);
1455 g_free(name);
1457 return 0;
1460 static MachineClass *find_machine(const char *name)
1462 GSList *el, *machines = object_class_get_list(TYPE_MACHINE, false);
1463 MachineClass *mc = NULL;
1465 for (el = machines; el; el = el->next) {
1466 MachineClass *temp = el->data;
1468 if (!strcmp(temp->name, name)) {
1469 mc = temp;
1470 break;
1472 if (temp->alias &&
1473 !strcmp(temp->alias, name)) {
1474 mc = temp;
1475 break;
1479 g_slist_free(machines);
1480 return mc;
1483 MachineClass *find_default_machine(void)
1485 GSList *el, *machines = object_class_get_list(TYPE_MACHINE, false);
1486 MachineClass *mc = NULL;
1488 for (el = machines; el; el = el->next) {
1489 MachineClass *temp = el->data;
1491 if (temp->is_default) {
1492 mc = temp;
1493 break;
1497 g_slist_free(machines);
1498 return mc;
1501 MachineInfoList *qmp_query_machines(Error **errp)
1503 GSList *el, *machines = object_class_get_list(TYPE_MACHINE, false);
1504 MachineInfoList *mach_list = NULL;
1506 for (el = machines; el; el = el->next) {
1507 MachineClass *mc = el->data;
1508 MachineInfoList *entry;
1509 MachineInfo *info;
1511 info = g_malloc0(sizeof(*info));
1512 if (mc->is_default) {
1513 info->has_is_default = true;
1514 info->is_default = true;
1517 if (mc->alias) {
1518 info->has_alias = true;
1519 info->alias = g_strdup(mc->alias);
1522 info->name = g_strdup(mc->name);
1523 info->cpu_max = !mc->max_cpus ? 1 : mc->max_cpus;
1525 entry = g_malloc0(sizeof(*entry));
1526 entry->value = info;
1527 entry->next = mach_list;
1528 mach_list = entry;
1531 g_slist_free(machines);
1532 return mach_list;
1535 /***********************************************************/
1536 /* main execution loop */
1538 struct vm_change_state_entry {
1539 VMChangeStateHandler *cb;
1540 void *opaque;
1541 QLIST_ENTRY (vm_change_state_entry) entries;
1544 static QLIST_HEAD(vm_change_state_head, vm_change_state_entry) vm_change_state_head;
1546 VMChangeStateEntry *qemu_add_vm_change_state_handler(VMChangeStateHandler *cb,
1547 void *opaque)
1549 VMChangeStateEntry *e;
1551 e = g_malloc0(sizeof (*e));
1553 e->cb = cb;
1554 e->opaque = opaque;
1555 QLIST_INSERT_HEAD(&vm_change_state_head, e, entries);
1556 return e;
1559 void qemu_del_vm_change_state_handler(VMChangeStateEntry *e)
1561 QLIST_REMOVE (e, entries);
1562 g_free (e);
1565 void vm_state_notify(int running, RunState state)
1567 VMChangeStateEntry *e, *next;
1569 trace_vm_state_notify(running, state);
1571 QLIST_FOREACH_SAFE(e, &vm_change_state_head, entries, next) {
1572 e->cb(e->opaque, running, state);
1576 /* reset/shutdown handler */
1578 typedef struct QEMUResetEntry {
1579 QTAILQ_ENTRY(QEMUResetEntry) entry;
1580 QEMUResetHandler *func;
1581 void *opaque;
1582 } QEMUResetEntry;
1584 static QTAILQ_HEAD(reset_handlers, QEMUResetEntry) reset_handlers =
1585 QTAILQ_HEAD_INITIALIZER(reset_handlers);
1586 static int reset_requested;
1587 static int shutdown_requested, shutdown_signal = -1;
1588 static pid_t shutdown_pid;
1589 static int powerdown_requested;
1590 static int debug_requested;
1591 static int suspend_requested;
1592 static WakeupReason wakeup_reason;
1593 static NotifierList powerdown_notifiers =
1594 NOTIFIER_LIST_INITIALIZER(powerdown_notifiers);
1595 static NotifierList suspend_notifiers =
1596 NOTIFIER_LIST_INITIALIZER(suspend_notifiers);
1597 static NotifierList wakeup_notifiers =
1598 NOTIFIER_LIST_INITIALIZER(wakeup_notifiers);
1599 static uint32_t wakeup_reason_mask = ~(1 << QEMU_WAKEUP_REASON_NONE);
1601 int qemu_shutdown_requested_get(void)
1603 return shutdown_requested;
1606 int qemu_reset_requested_get(void)
1608 return reset_requested;
1611 static int qemu_shutdown_requested(void)
1613 return atomic_xchg(&shutdown_requested, 0);
1616 static void qemu_kill_report(void)
1618 if (!qtest_driver() && shutdown_signal != -1) {
1619 fprintf(stderr, "qemu: terminating on signal %d", shutdown_signal);
1620 if (shutdown_pid == 0) {
1621 /* This happens for eg ^C at the terminal, so it's worth
1622 * avoiding printing an odd message in that case.
1624 fputc('\n', stderr);
1625 } else {
1626 fprintf(stderr, " from pid " FMT_pid "\n", shutdown_pid);
1628 shutdown_signal = -1;
1632 static int qemu_reset_requested(void)
1634 int r = reset_requested;
1635 reset_requested = 0;
1636 return r;
1639 static int qemu_suspend_requested(void)
1641 int r = suspend_requested;
1642 suspend_requested = 0;
1643 return r;
1646 static WakeupReason qemu_wakeup_requested(void)
1648 return wakeup_reason;
1651 static int qemu_powerdown_requested(void)
1653 int r = powerdown_requested;
1654 powerdown_requested = 0;
1655 return r;
1658 static int qemu_debug_requested(void)
1660 int r = debug_requested;
1661 debug_requested = 0;
1662 return r;
1665 void qemu_register_reset(QEMUResetHandler *func, void *opaque)
1667 QEMUResetEntry *re = g_malloc0(sizeof(QEMUResetEntry));
1669 re->func = func;
1670 re->opaque = opaque;
1671 QTAILQ_INSERT_TAIL(&reset_handlers, re, entry);
1674 void qemu_unregister_reset(QEMUResetHandler *func, void *opaque)
1676 QEMUResetEntry *re;
1678 QTAILQ_FOREACH(re, &reset_handlers, entry) {
1679 if (re->func == func && re->opaque == opaque) {
1680 QTAILQ_REMOVE(&reset_handlers, re, entry);
1681 g_free(re);
1682 return;
1687 void qemu_devices_reset(void)
1689 QEMUResetEntry *re, *nre;
1691 /* reset all devices */
1692 QTAILQ_FOREACH_SAFE(re, &reset_handlers, entry, nre) {
1693 re->func(re->opaque);
1697 void qemu_system_reset(bool report)
1699 MachineClass *mc;
1701 mc = current_machine ? MACHINE_GET_CLASS(current_machine) : NULL;
1703 if (mc && mc->reset) {
1704 mc->reset();
1705 } else {
1706 qemu_devices_reset();
1708 if (report) {
1709 qapi_event_send_reset(&error_abort);
1711 cpu_synchronize_all_post_reset();
1714 void qemu_system_reset_request(void)
1716 if (no_reboot) {
1717 shutdown_requested = 1;
1718 } else {
1719 reset_requested = 1;
1721 cpu_stop_current();
1722 qemu_notify_event();
1725 static void qemu_system_suspend(void)
1727 pause_all_vcpus();
1728 notifier_list_notify(&suspend_notifiers, NULL);
1729 runstate_set(RUN_STATE_SUSPENDED);
1730 qapi_event_send_suspend(&error_abort);
1733 void qemu_system_suspend_request(void)
1735 if (runstate_check(RUN_STATE_SUSPENDED)) {
1736 return;
1738 suspend_requested = 1;
1739 cpu_stop_current();
1740 qemu_notify_event();
1743 void qemu_register_suspend_notifier(Notifier *notifier)
1745 notifier_list_add(&suspend_notifiers, notifier);
1748 void qemu_system_wakeup_request(WakeupReason reason)
1750 trace_system_wakeup_request(reason);
1752 if (!runstate_check(RUN_STATE_SUSPENDED)) {
1753 return;
1755 if (!(wakeup_reason_mask & (1 << reason))) {
1756 return;
1758 runstate_set(RUN_STATE_RUNNING);
1759 wakeup_reason = reason;
1760 qemu_notify_event();
1763 void qemu_system_wakeup_enable(WakeupReason reason, bool enabled)
1765 if (enabled) {
1766 wakeup_reason_mask |= (1 << reason);
1767 } else {
1768 wakeup_reason_mask &= ~(1 << reason);
1772 void qemu_register_wakeup_notifier(Notifier *notifier)
1774 notifier_list_add(&wakeup_notifiers, notifier);
1777 void qemu_system_killed(int signal, pid_t pid)
1779 shutdown_signal = signal;
1780 shutdown_pid = pid;
1781 no_shutdown = 0;
1782 qemu_system_shutdown_request();
1785 void qemu_system_shutdown_request(void)
1787 trace_qemu_system_shutdown_request();
1788 shutdown_requested = 1;
1789 qemu_notify_event();
1792 static void qemu_system_powerdown(void)
1794 qapi_event_send_powerdown(&error_abort);
1795 notifier_list_notify(&powerdown_notifiers, NULL);
1798 void qemu_system_powerdown_request(void)
1800 trace_qemu_system_powerdown_request();
1801 powerdown_requested = 1;
1802 qemu_notify_event();
1805 void qemu_register_powerdown_notifier(Notifier *notifier)
1807 notifier_list_add(&powerdown_notifiers, notifier);
1810 void qemu_system_debug_request(void)
1812 debug_requested = 1;
1813 qemu_notify_event();
1816 static bool main_loop_should_exit(void)
1818 RunState r;
1819 if (qemu_debug_requested()) {
1820 vm_stop(RUN_STATE_DEBUG);
1822 if (qemu_suspend_requested()) {
1823 qemu_system_suspend();
1825 if (qemu_shutdown_requested()) {
1826 qemu_kill_report();
1827 qapi_event_send_shutdown(&error_abort);
1828 if (no_shutdown) {
1829 vm_stop(RUN_STATE_SHUTDOWN);
1830 } else {
1831 return true;
1834 if (qemu_reset_requested()) {
1835 pause_all_vcpus();
1836 cpu_synchronize_all_states();
1837 qemu_system_reset(VMRESET_REPORT);
1838 resume_all_vcpus();
1839 if (runstate_needs_reset()) {
1840 runstate_set(RUN_STATE_PAUSED);
1843 if (qemu_wakeup_requested()) {
1844 pause_all_vcpus();
1845 cpu_synchronize_all_states();
1846 qemu_system_reset(VMRESET_SILENT);
1847 notifier_list_notify(&wakeup_notifiers, &wakeup_reason);
1848 wakeup_reason = QEMU_WAKEUP_REASON_NONE;
1849 resume_all_vcpus();
1850 qapi_event_send_wakeup(&error_abort);
1852 if (qemu_powerdown_requested()) {
1853 qemu_system_powerdown();
1855 if (qemu_vmstop_requested(&r)) {
1856 vm_stop(r);
1858 return false;
1861 static void main_loop(void)
1863 bool nonblocking;
1864 int last_io = 0;
1865 #ifdef CONFIG_PROFILER
1866 int64_t ti;
1867 #endif
1868 do {
1869 nonblocking = !kvm_enabled() && !xen_enabled() && last_io > 0;
1870 #ifdef CONFIG_PROFILER
1871 ti = profile_getclock();
1872 #endif
1873 last_io = main_loop_wait(nonblocking);
1874 #ifdef CONFIG_PROFILER
1875 dev_time += profile_getclock() - ti;
1876 #endif
1877 } while (!main_loop_should_exit());
1880 static void version(void)
1882 printf("QEMU emulator version " QEMU_VERSION QEMU_PKGVERSION ", Copyright (c) 2003-2008 Fabrice Bellard\n");
1885 static void help(int exitcode)
1887 version();
1888 printf("usage: %s [options] [disk_image]\n\n"
1889 "'disk_image' is a raw hard disk image for IDE hard disk 0\n\n",
1890 error_get_progname());
1892 #define QEMU_OPTIONS_GENERATE_HELP
1893 #include "qemu-options-wrapper.h"
1895 printf("\nDuring emulation, the following keys are useful:\n"
1896 "ctrl-alt-f toggle full screen\n"
1897 "ctrl-alt-n switch to virtual console 'n'\n"
1898 "ctrl-alt toggle mouse and keyboard grab\n"
1899 "\n"
1900 "When using -nographic, press 'ctrl-a h' to get some help.\n");
1902 exit(exitcode);
1905 #define HAS_ARG 0x0001
1907 typedef struct QEMUOption {
1908 const char *name;
1909 int flags;
1910 int index;
1911 uint32_t arch_mask;
1912 } QEMUOption;
1914 static const QEMUOption qemu_options[] = {
1915 { "h", 0, QEMU_OPTION_h, QEMU_ARCH_ALL },
1916 #define QEMU_OPTIONS_GENERATE_OPTIONS
1917 #include "qemu-options-wrapper.h"
1918 { NULL },
1921 static bool vga_available(void)
1923 return object_class_by_name("VGA") || object_class_by_name("isa-vga");
1926 static bool cirrus_vga_available(void)
1928 return object_class_by_name("cirrus-vga")
1929 || object_class_by_name("isa-cirrus-vga");
1932 static bool vmware_vga_available(void)
1934 return object_class_by_name("vmware-svga");
1937 static bool qxl_vga_available(void)
1939 return object_class_by_name("qxl-vga");
1942 static bool tcx_vga_available(void)
1944 return object_class_by_name("SUNW,tcx");
1947 static bool cg3_vga_available(void)
1949 return object_class_by_name("cgthree");
1952 static void select_vgahw (const char *p)
1954 const char *opts;
1956 assert(vga_interface_type == VGA_NONE);
1957 if (strstart(p, "std", &opts)) {
1958 if (vga_available()) {
1959 vga_interface_type = VGA_STD;
1960 } else {
1961 fprintf(stderr, "Error: standard VGA not available\n");
1962 exit(0);
1964 } else if (strstart(p, "cirrus", &opts)) {
1965 if (cirrus_vga_available()) {
1966 vga_interface_type = VGA_CIRRUS;
1967 } else {
1968 fprintf(stderr, "Error: Cirrus VGA not available\n");
1969 exit(0);
1971 } else if (strstart(p, "vmware", &opts)) {
1972 if (vmware_vga_available()) {
1973 vga_interface_type = VGA_VMWARE;
1974 } else {
1975 fprintf(stderr, "Error: VMWare SVGA not available\n");
1976 exit(0);
1978 } else if (strstart(p, "xenfb", &opts)) {
1979 vga_interface_type = VGA_XENFB;
1980 } else if (strstart(p, "qxl", &opts)) {
1981 if (qxl_vga_available()) {
1982 vga_interface_type = VGA_QXL;
1983 } else {
1984 fprintf(stderr, "Error: QXL VGA not available\n");
1985 exit(0);
1987 } else if (strstart(p, "tcx", &opts)) {
1988 if (tcx_vga_available()) {
1989 vga_interface_type = VGA_TCX;
1990 } else {
1991 fprintf(stderr, "Error: TCX framebuffer not available\n");
1992 exit(0);
1994 } else if (strstart(p, "cg3", &opts)) {
1995 if (cg3_vga_available()) {
1996 vga_interface_type = VGA_CG3;
1997 } else {
1998 fprintf(stderr, "Error: CG3 framebuffer not available\n");
1999 exit(0);
2001 } else if (!strstart(p, "none", &opts)) {
2002 invalid_vga:
2003 fprintf(stderr, "Unknown vga type: %s\n", p);
2004 exit(1);
2006 while (*opts) {
2007 const char *nextopt;
2009 if (strstart(opts, ",retrace=", &nextopt)) {
2010 opts = nextopt;
2011 if (strstart(opts, "dumb", &nextopt))
2012 vga_retrace_method = VGA_RETRACE_DUMB;
2013 else if (strstart(opts, "precise", &nextopt))
2014 vga_retrace_method = VGA_RETRACE_PRECISE;
2015 else goto invalid_vga;
2016 } else goto invalid_vga;
2017 opts = nextopt;
2021 static DisplayType select_display(const char *p)
2023 const char *opts;
2024 DisplayType display = DT_DEFAULT;
2026 if (strstart(p, "sdl", &opts)) {
2027 #ifdef CONFIG_SDL
2028 display = DT_SDL;
2029 while (*opts) {
2030 const char *nextopt;
2032 if (strstart(opts, ",frame=", &nextopt)) {
2033 opts = nextopt;
2034 if (strstart(opts, "on", &nextopt)) {
2035 no_frame = 0;
2036 } else if (strstart(opts, "off", &nextopt)) {
2037 no_frame = 1;
2038 } else {
2039 goto invalid_sdl_args;
2041 } else if (strstart(opts, ",alt_grab=", &nextopt)) {
2042 opts = nextopt;
2043 if (strstart(opts, "on", &nextopt)) {
2044 alt_grab = 1;
2045 } else if (strstart(opts, "off", &nextopt)) {
2046 alt_grab = 0;
2047 } else {
2048 goto invalid_sdl_args;
2050 } else if (strstart(opts, ",ctrl_grab=", &nextopt)) {
2051 opts = nextopt;
2052 if (strstart(opts, "on", &nextopt)) {
2053 ctrl_grab = 1;
2054 } else if (strstart(opts, "off", &nextopt)) {
2055 ctrl_grab = 0;
2056 } else {
2057 goto invalid_sdl_args;
2059 } else if (strstart(opts, ",window_close=", &nextopt)) {
2060 opts = nextopt;
2061 if (strstart(opts, "on", &nextopt)) {
2062 no_quit = 0;
2063 } else if (strstart(opts, "off", &nextopt)) {
2064 no_quit = 1;
2065 } else {
2066 goto invalid_sdl_args;
2068 } else {
2069 invalid_sdl_args:
2070 fprintf(stderr, "Invalid SDL option string: %s\n", p);
2071 exit(1);
2073 opts = nextopt;
2075 #else
2076 fprintf(stderr, "SDL support is disabled\n");
2077 exit(1);
2078 #endif
2079 } else if (strstart(p, "vnc", &opts)) {
2080 #ifdef CONFIG_VNC
2081 display_remote++;
2083 if (*opts) {
2084 const char *nextopt;
2086 if (strstart(opts, "=", &nextopt)) {
2087 vnc_display = nextopt;
2090 if (!vnc_display) {
2091 fprintf(stderr, "VNC requires a display argument vnc=<display>\n");
2092 exit(1);
2094 #else
2095 fprintf(stderr, "VNC support is disabled\n");
2096 exit(1);
2097 #endif
2098 } else if (strstart(p, "curses", &opts)) {
2099 #ifdef CONFIG_CURSES
2100 display = DT_CURSES;
2101 #else
2102 fprintf(stderr, "Curses support is disabled\n");
2103 exit(1);
2104 #endif
2105 } else if (strstart(p, "gtk", &opts)) {
2106 #ifdef CONFIG_GTK
2107 display = DT_GTK;
2108 while (*opts) {
2109 const char *nextopt;
2111 if (strstart(opts, ",grab_on_hover=", &nextopt)) {
2112 opts = nextopt;
2113 if (strstart(opts, "on", &nextopt)) {
2114 grab_on_hover = true;
2115 } else if (strstart(opts, "off", &nextopt)) {
2116 grab_on_hover = false;
2117 } else {
2118 goto invalid_gtk_args;
2120 } else {
2121 invalid_gtk_args:
2122 fprintf(stderr, "Invalid GTK option string: %s\n", p);
2123 exit(1);
2125 opts = nextopt;
2127 #else
2128 fprintf(stderr, "GTK support is disabled\n");
2129 exit(1);
2130 #endif
2131 } else if (strstart(p, "none", &opts)) {
2132 display = DT_NONE;
2133 } else {
2134 fprintf(stderr, "Unknown display type: %s\n", p);
2135 exit(1);
2138 return display;
2141 static int balloon_parse(const char *arg)
2143 QemuOpts *opts;
2145 if (strcmp(arg, "none") == 0) {
2146 return 0;
2149 if (!strncmp(arg, "virtio", 6)) {
2150 if (arg[6] == ',') {
2151 /* have params -> parse them */
2152 opts = qemu_opts_parse(qemu_find_opts("device"), arg+7, 0);
2153 if (!opts)
2154 return -1;
2155 } else {
2156 /* create empty opts */
2157 opts = qemu_opts_create(qemu_find_opts("device"), NULL, 0,
2158 &error_abort);
2160 qemu_opt_set(opts, "driver", "virtio-balloon");
2161 return 0;
2164 return -1;
2167 char *qemu_find_file(int type, const char *name)
2169 int i;
2170 const char *subdir;
2171 char *buf;
2173 /* Try the name as a straight path first */
2174 if (access(name, R_OK) == 0) {
2175 trace_load_file(name, name);
2176 return g_strdup(name);
2179 switch (type) {
2180 case QEMU_FILE_TYPE_BIOS:
2181 subdir = "";
2182 break;
2183 case QEMU_FILE_TYPE_KEYMAP:
2184 subdir = "keymaps/";
2185 break;
2186 default:
2187 abort();
2190 for (i = 0; i < data_dir_idx; i++) {
2191 buf = g_strdup_printf("%s/%s%s", data_dir[i], subdir, name);
2192 if (access(buf, R_OK) == 0) {
2193 trace_load_file(name, buf);
2194 return buf;
2196 g_free(buf);
2198 return NULL;
2201 static int device_help_func(QemuOpts *opts, void *opaque)
2203 return qdev_device_help(opts);
2206 static int device_init_func(QemuOpts *opts, void *opaque)
2208 DeviceState *dev;
2210 dev = qdev_device_add(opts);
2211 if (!dev)
2212 return -1;
2213 object_unref(OBJECT(dev));
2214 return 0;
2217 static int chardev_init_func(QemuOpts *opts, void *opaque)
2219 Error *local_err = NULL;
2221 qemu_chr_new_from_opts(opts, NULL, &local_err);
2222 if (local_err) {
2223 error_report("%s", error_get_pretty(local_err));
2224 error_free(local_err);
2225 return -1;
2227 return 0;
2230 #ifdef CONFIG_VIRTFS
2231 static int fsdev_init_func(QemuOpts *opts, void *opaque)
2233 int ret;
2234 ret = qemu_fsdev_add(opts);
2236 return ret;
2238 #endif
2240 static int mon_init_func(QemuOpts *opts, void *opaque)
2242 CharDriverState *chr;
2243 const char *chardev;
2244 const char *mode;
2245 int flags;
2247 mode = qemu_opt_get(opts, "mode");
2248 if (mode == NULL) {
2249 mode = "readline";
2251 if (strcmp(mode, "readline") == 0) {
2252 flags = MONITOR_USE_READLINE;
2253 } else if (strcmp(mode, "control") == 0) {
2254 flags = MONITOR_USE_CONTROL;
2255 } else {
2256 fprintf(stderr, "unknown monitor mode \"%s\"\n", mode);
2257 exit(1);
2260 if (qemu_opt_get_bool(opts, "pretty", 0))
2261 flags |= MONITOR_USE_PRETTY;
2263 if (qemu_opt_get_bool(opts, "default", 0))
2264 flags |= MONITOR_IS_DEFAULT;
2266 chardev = qemu_opt_get(opts, "chardev");
2267 chr = qemu_chr_find(chardev);
2268 if (chr == NULL) {
2269 fprintf(stderr, "chardev \"%s\" not found\n", chardev);
2270 exit(1);
2273 qemu_chr_fe_claim_no_fail(chr);
2274 monitor_init(chr, flags);
2275 return 0;
2278 static void monitor_parse(const char *optarg, const char *mode)
2280 static int monitor_device_index = 0;
2281 QemuOpts *opts;
2282 const char *p;
2283 char label[32];
2284 int def = 0;
2286 if (strstart(optarg, "chardev:", &p)) {
2287 snprintf(label, sizeof(label), "%s", p);
2288 } else {
2289 snprintf(label, sizeof(label), "compat_monitor%d",
2290 monitor_device_index);
2291 if (monitor_device_index == 0) {
2292 def = 1;
2294 opts = qemu_chr_parse_compat(label, optarg);
2295 if (!opts) {
2296 fprintf(stderr, "parse error: %s\n", optarg);
2297 exit(1);
2301 opts = qemu_opts_create(qemu_find_opts("mon"), label, 1, NULL);
2302 if (!opts) {
2303 fprintf(stderr, "duplicate chardev: %s\n", label);
2304 exit(1);
2306 qemu_opt_set(opts, "mode", mode);
2307 qemu_opt_set(opts, "chardev", label);
2308 if (def)
2309 qemu_opt_set(opts, "default", "on");
2310 monitor_device_index++;
2313 struct device_config {
2314 enum {
2315 DEV_USB, /* -usbdevice */
2316 DEV_BT, /* -bt */
2317 DEV_SERIAL, /* -serial */
2318 DEV_PARALLEL, /* -parallel */
2319 DEV_VIRTCON, /* -virtioconsole */
2320 DEV_DEBUGCON, /* -debugcon */
2321 DEV_GDB, /* -gdb, -s */
2322 DEV_SCLP, /* s390 sclp */
2323 } type;
2324 const char *cmdline;
2325 Location loc;
2326 QTAILQ_ENTRY(device_config) next;
2329 static QTAILQ_HEAD(, device_config) device_configs =
2330 QTAILQ_HEAD_INITIALIZER(device_configs);
2332 static void add_device_config(int type, const char *cmdline)
2334 struct device_config *conf;
2336 conf = g_malloc0(sizeof(*conf));
2337 conf->type = type;
2338 conf->cmdline = cmdline;
2339 loc_save(&conf->loc);
2340 QTAILQ_INSERT_TAIL(&device_configs, conf, next);
2343 static int foreach_device_config(int type, int (*func)(const char *cmdline))
2345 struct device_config *conf;
2346 int rc;
2348 QTAILQ_FOREACH(conf, &device_configs, next) {
2349 if (conf->type != type)
2350 continue;
2351 loc_push_restore(&conf->loc);
2352 rc = func(conf->cmdline);
2353 loc_pop(&conf->loc);
2354 if (rc) {
2355 return rc;
2358 return 0;
2361 static int serial_parse(const char *devname)
2363 static int index = 0;
2364 char label[32];
2366 if (strcmp(devname, "none") == 0)
2367 return 0;
2368 if (index == MAX_SERIAL_PORTS) {
2369 fprintf(stderr, "qemu: too many serial ports\n");
2370 exit(1);
2372 snprintf(label, sizeof(label), "serial%d", index);
2373 serial_hds[index] = qemu_chr_new(label, devname, NULL);
2374 if (!serial_hds[index]) {
2375 fprintf(stderr, "qemu: could not connect serial device"
2376 " to character backend '%s'\n", devname);
2377 return -1;
2379 index++;
2380 return 0;
2383 static int parallel_parse(const char *devname)
2385 static int index = 0;
2386 char label[32];
2388 if (strcmp(devname, "none") == 0)
2389 return 0;
2390 if (index == MAX_PARALLEL_PORTS) {
2391 fprintf(stderr, "qemu: too many parallel ports\n");
2392 exit(1);
2394 snprintf(label, sizeof(label), "parallel%d", index);
2395 parallel_hds[index] = qemu_chr_new(label, devname, NULL);
2396 if (!parallel_hds[index]) {
2397 fprintf(stderr, "qemu: could not connect parallel device"
2398 " to character backend '%s'\n", devname);
2399 return -1;
2401 index++;
2402 return 0;
2405 static int virtcon_parse(const char *devname)
2407 QemuOptsList *device = qemu_find_opts("device");
2408 static int index = 0;
2409 char label[32];
2410 QemuOpts *bus_opts, *dev_opts;
2412 if (strcmp(devname, "none") == 0)
2413 return 0;
2414 if (index == MAX_VIRTIO_CONSOLES) {
2415 fprintf(stderr, "qemu: too many virtio consoles\n");
2416 exit(1);
2419 bus_opts = qemu_opts_create(device, NULL, 0, &error_abort);
2420 if (arch_type == QEMU_ARCH_S390X) {
2421 qemu_opt_set(bus_opts, "driver", "virtio-serial-s390");
2422 } else {
2423 qemu_opt_set(bus_opts, "driver", "virtio-serial-pci");
2426 dev_opts = qemu_opts_create(device, NULL, 0, &error_abort);
2427 qemu_opt_set(dev_opts, "driver", "virtconsole");
2429 snprintf(label, sizeof(label), "virtcon%d", index);
2430 virtcon_hds[index] = qemu_chr_new(label, devname, NULL);
2431 if (!virtcon_hds[index]) {
2432 fprintf(stderr, "qemu: could not connect virtio console"
2433 " to character backend '%s'\n", devname);
2434 return -1;
2436 qemu_opt_set(dev_opts, "chardev", label);
2438 index++;
2439 return 0;
2442 static int sclp_parse(const char *devname)
2444 QemuOptsList *device = qemu_find_opts("device");
2445 static int index = 0;
2446 char label[32];
2447 QemuOpts *dev_opts;
2449 if (strcmp(devname, "none") == 0) {
2450 return 0;
2452 if (index == MAX_SCLP_CONSOLES) {
2453 fprintf(stderr, "qemu: too many sclp consoles\n");
2454 exit(1);
2457 assert(arch_type == QEMU_ARCH_S390X);
2459 dev_opts = qemu_opts_create(device, NULL, 0, NULL);
2460 qemu_opt_set(dev_opts, "driver", "sclpconsole");
2462 snprintf(label, sizeof(label), "sclpcon%d", index);
2463 sclp_hds[index] = qemu_chr_new(label, devname, NULL);
2464 if (!sclp_hds[index]) {
2465 fprintf(stderr, "qemu: could not connect sclp console"
2466 " to character backend '%s'\n", devname);
2467 return -1;
2469 qemu_opt_set(dev_opts, "chardev", label);
2471 index++;
2472 return 0;
2475 static int debugcon_parse(const char *devname)
2477 QemuOpts *opts;
2479 if (!qemu_chr_new("debugcon", devname, NULL)) {
2480 exit(1);
2482 opts = qemu_opts_create(qemu_find_opts("device"), "debugcon", 1, NULL);
2483 if (!opts) {
2484 fprintf(stderr, "qemu: already have a debugcon device\n");
2485 exit(1);
2487 qemu_opt_set(opts, "driver", "isa-debugcon");
2488 qemu_opt_set(opts, "chardev", "debugcon");
2489 return 0;
2492 static gint machine_class_cmp(gconstpointer a, gconstpointer b)
2494 const MachineClass *mc1 = a, *mc2 = b;
2495 int res;
2497 if (mc1->family == NULL) {
2498 if (mc2->family == NULL) {
2499 /* Compare standalone machine types against each other; they sort
2500 * in increasing order.
2502 return strcmp(object_class_get_name(OBJECT_CLASS(mc1)),
2503 object_class_get_name(OBJECT_CLASS(mc2)));
2506 /* Standalone machine types sort after families. */
2507 return 1;
2510 if (mc2->family == NULL) {
2511 /* Families sort before standalone machine types. */
2512 return -1;
2515 /* Families sort between each other alphabetically increasingly. */
2516 res = strcmp(mc1->family, mc2->family);
2517 if (res != 0) {
2518 return res;
2521 /* Within the same family, machine types sort in decreasing order. */
2522 return strcmp(object_class_get_name(OBJECT_CLASS(mc2)),
2523 object_class_get_name(OBJECT_CLASS(mc1)));
2526 static MachineClass *machine_parse(const char *name)
2528 MachineClass *mc = NULL;
2529 GSList *el, *machines = object_class_get_list(TYPE_MACHINE, false);
2531 if (name) {
2532 mc = find_machine(name);
2534 if (mc) {
2535 return mc;
2537 if (name && !is_help_option(name)) {
2538 error_report("Unsupported machine type");
2539 error_printf("Use -machine help to list supported machines!\n");
2540 } else {
2541 printf("Supported machines are:\n");
2542 machines = g_slist_sort(machines, machine_class_cmp);
2543 for (el = machines; el; el = el->next) {
2544 MachineClass *mc = el->data;
2545 if (mc->alias) {
2546 printf("%-20s %s (alias of %s)\n", mc->alias, mc->desc, mc->name);
2548 printf("%-20s %s%s\n", mc->name, mc->desc,
2549 mc->is_default ? " (default)" : "");
2553 g_slist_free(machines);
2554 exit(!name || !is_help_option(name));
2557 void qemu_add_exit_notifier(Notifier *notify)
2559 notifier_list_add(&exit_notifiers, notify);
2562 void qemu_remove_exit_notifier(Notifier *notify)
2564 notifier_remove(notify);
2567 static void qemu_run_exit_notifiers(void)
2569 notifier_list_notify(&exit_notifiers, NULL);
2572 void qemu_add_machine_init_done_notifier(Notifier *notify)
2574 notifier_list_add(&machine_init_done_notifiers, notify);
2577 static void qemu_run_machine_init_done_notifiers(void)
2579 notifier_list_notify(&machine_init_done_notifiers, NULL);
2582 static const QEMUOption *lookup_opt(int argc, char **argv,
2583 const char **poptarg, int *poptind)
2585 const QEMUOption *popt;
2586 int optind = *poptind;
2587 char *r = argv[optind];
2588 const char *optarg;
2590 loc_set_cmdline(argv, optind, 1);
2591 optind++;
2592 /* Treat --foo the same as -foo. */
2593 if (r[1] == '-')
2594 r++;
2595 popt = qemu_options;
2596 for(;;) {
2597 if (!popt->name) {
2598 error_report("invalid option");
2599 exit(1);
2601 if (!strcmp(popt->name, r + 1))
2602 break;
2603 popt++;
2605 if (popt->flags & HAS_ARG) {
2606 if (optind >= argc) {
2607 error_report("requires an argument");
2608 exit(1);
2610 optarg = argv[optind++];
2611 loc_set_cmdline(argv, optind - 2, 2);
2612 } else {
2613 optarg = NULL;
2616 *poptarg = optarg;
2617 *poptind = optind;
2619 return popt;
2622 static gpointer malloc_and_trace(gsize n_bytes)
2624 void *ptr = malloc(n_bytes);
2625 trace_g_malloc(n_bytes, ptr);
2626 return ptr;
2629 static gpointer realloc_and_trace(gpointer mem, gsize n_bytes)
2631 void *ptr = realloc(mem, n_bytes);
2632 trace_g_realloc(mem, n_bytes, ptr);
2633 return ptr;
2636 static void free_and_trace(gpointer mem)
2638 trace_g_free(mem);
2639 free(mem);
2642 static int machine_set_property(const char *name, const char *value,
2643 void *opaque)
2645 Object *obj = OBJECT(opaque);
2646 StringInputVisitor *siv;
2647 Error *local_err = NULL;
2648 char *c, *qom_name;
2650 if (strcmp(name, "type") == 0) {
2651 return 0;
2654 qom_name = g_strdup(name);
2655 c = qom_name;
2656 while (*c++) {
2657 if (*c == '_') {
2658 *c = '-';
2662 siv = string_input_visitor_new(value);
2663 object_property_set(obj, string_input_get_visitor(siv), qom_name, &local_err);
2664 string_input_visitor_cleanup(siv);
2665 g_free(qom_name);
2667 if (local_err) {
2668 qerror_report_err(local_err);
2669 error_free(local_err);
2670 return -1;
2673 return 0;
2676 static int object_create(QemuOpts *opts, void *opaque)
2678 Error *err = NULL;
2679 char *type = NULL;
2680 char *id = NULL;
2681 void *dummy = NULL;
2682 OptsVisitor *ov;
2683 QDict *pdict;
2685 ov = opts_visitor_new(opts);
2686 pdict = qemu_opts_to_qdict(opts, NULL);
2688 visit_start_struct(opts_get_visitor(ov), &dummy, NULL, NULL, 0, &err);
2689 if (err) {
2690 goto out;
2693 qdict_del(pdict, "qom-type");
2694 visit_type_str(opts_get_visitor(ov), &type, "qom-type", &err);
2695 if (err) {
2696 goto out;
2699 qdict_del(pdict, "id");
2700 visit_type_str(opts_get_visitor(ov), &id, "id", &err);
2701 if (err) {
2702 goto out;
2705 object_add(type, id, pdict, opts_get_visitor(ov), &err);
2706 if (err) {
2707 goto out;
2709 visit_end_struct(opts_get_visitor(ov), &err);
2710 if (err) {
2711 qmp_object_del(id, NULL);
2714 out:
2715 opts_visitor_cleanup(ov);
2717 QDECREF(pdict);
2718 g_free(id);
2719 g_free(type);
2720 g_free(dummy);
2721 if (err) {
2722 qerror_report_err(err);
2723 error_free(err);
2724 return -1;
2726 return 0;
2729 int main(int argc, char **argv, char **envp)
2731 int i;
2732 int snapshot, linux_boot;
2733 const char *initrd_filename;
2734 const char *kernel_filename, *kernel_cmdline;
2735 const char *boot_order;
2736 DisplayState *ds;
2737 int cyls, heads, secs, translation;
2738 QemuOpts *hda_opts = NULL, *opts, *machine_opts, *icount_opts = NULL;
2739 QemuOptsList *olist;
2740 int optind;
2741 const char *optarg;
2742 const char *loadvm = NULL;
2743 MachineClass *machine_class;
2744 const char *cpu_model;
2745 const char *vga_model = NULL;
2746 const char *qtest_chrdev = NULL;
2747 const char *qtest_log = NULL;
2748 const char *pid_file = NULL;
2749 const char *incoming = NULL;
2750 #ifdef CONFIG_VNC
2751 int show_vnc_port = 0;
2752 #endif
2753 bool defconfig = true;
2754 bool userconfig = true;
2755 const char *log_mask = NULL;
2756 const char *log_file = NULL;
2757 GMemVTable mem_trace = {
2758 .malloc = malloc_and_trace,
2759 .realloc = realloc_and_trace,
2760 .free = free_and_trace,
2762 const char *trace_events = NULL;
2763 const char *trace_file = NULL;
2764 const ram_addr_t default_ram_size = (ram_addr_t)DEFAULT_RAM_SIZE *
2765 1024 * 1024;
2766 ram_addr_t maxram_size = default_ram_size;
2767 uint64_t ram_slots = 0;
2768 FILE *vmstate_dump_file = NULL;
2769 Error *main_loop_err = NULL;
2771 atexit(qemu_run_exit_notifiers);
2772 error_set_progname(argv[0]);
2773 qemu_init_exec_dir(argv[0]);
2775 g_mem_set_vtable(&mem_trace);
2777 module_call_init(MODULE_INIT_QOM);
2779 qemu_add_opts(&qemu_drive_opts);
2780 qemu_add_drive_opts(&qemu_legacy_drive_opts);
2781 qemu_add_drive_opts(&qemu_common_drive_opts);
2782 qemu_add_drive_opts(&qemu_drive_opts);
2783 qemu_add_opts(&qemu_chardev_opts);
2784 qemu_add_opts(&qemu_device_opts);
2785 qemu_add_opts(&qemu_netdev_opts);
2786 qemu_add_opts(&qemu_net_opts);
2787 qemu_add_opts(&qemu_rtc_opts);
2788 qemu_add_opts(&qemu_global_opts);
2789 qemu_add_opts(&qemu_mon_opts);
2790 qemu_add_opts(&qemu_trace_opts);
2791 qemu_add_opts(&qemu_option_rom_opts);
2792 qemu_add_opts(&qemu_machine_opts);
2793 qemu_add_opts(&qemu_mem_opts);
2794 qemu_add_opts(&qemu_smp_opts);
2795 qemu_add_opts(&qemu_boot_opts);
2796 qemu_add_opts(&qemu_sandbox_opts);
2797 qemu_add_opts(&qemu_add_fd_opts);
2798 qemu_add_opts(&qemu_object_opts);
2799 qemu_add_opts(&qemu_tpmdev_opts);
2800 qemu_add_opts(&qemu_realtime_opts);
2801 qemu_add_opts(&qemu_msg_opts);
2802 qemu_add_opts(&qemu_name_opts);
2803 qemu_add_opts(&qemu_numa_opts);
2804 qemu_add_opts(&qemu_icount_opts);
2806 runstate_init();
2808 rtc_clock = QEMU_CLOCK_HOST;
2810 QLIST_INIT (&vm_change_state_head);
2811 os_setup_early_signal_handling();
2813 module_call_init(MODULE_INIT_MACHINE);
2814 machine_class = find_default_machine();
2815 cpu_model = NULL;
2816 ram_size = default_ram_size;
2817 snapshot = 0;
2818 cyls = heads = secs = 0;
2819 translation = BIOS_ATA_TRANSLATION_AUTO;
2821 for (i = 0; i < MAX_NODES; i++) {
2822 numa_info[i].node_mem = 0;
2823 numa_info[i].present = false;
2824 bitmap_zero(numa_info[i].node_cpu, MAX_CPUMASK_BITS);
2827 nb_numa_nodes = 0;
2828 max_numa_nodeid = 0;
2829 nb_nics = 0;
2831 bdrv_init_with_whitelist();
2833 autostart = 1;
2835 /* first pass of option parsing */
2836 optind = 1;
2837 while (optind < argc) {
2838 if (argv[optind][0] != '-') {
2839 /* disk image */
2840 optind++;
2841 } else {
2842 const QEMUOption *popt;
2844 popt = lookup_opt(argc, argv, &optarg, &optind);
2845 switch (popt->index) {
2846 case QEMU_OPTION_nodefconfig:
2847 defconfig = false;
2848 break;
2849 case QEMU_OPTION_nouserconfig:
2850 userconfig = false;
2851 break;
2856 if (defconfig) {
2857 int ret;
2858 ret = qemu_read_default_config_files(userconfig);
2859 if (ret < 0) {
2860 exit(1);
2864 /* second pass of option parsing */
2865 optind = 1;
2866 for(;;) {
2867 if (optind >= argc)
2868 break;
2869 if (argv[optind][0] != '-') {
2870 hda_opts = drive_add(IF_DEFAULT, 0, argv[optind++], HD_OPTS);
2871 } else {
2872 const QEMUOption *popt;
2874 popt = lookup_opt(argc, argv, &optarg, &optind);
2875 if (!(popt->arch_mask & arch_type)) {
2876 printf("Option %s not supported for this target\n", popt->name);
2877 exit(1);
2879 switch(popt->index) {
2880 case QEMU_OPTION_M:
2881 machine_class = machine_parse(optarg);
2882 break;
2883 case QEMU_OPTION_no_kvm_irqchip: {
2884 olist = qemu_find_opts("machine");
2885 qemu_opts_parse(olist, "kernel_irqchip=off", 0);
2886 break;
2888 case QEMU_OPTION_cpu:
2889 /* hw initialization will check this */
2890 cpu_model = optarg;
2891 break;
2892 case QEMU_OPTION_hda:
2894 char buf[256];
2895 if (cyls == 0)
2896 snprintf(buf, sizeof(buf), "%s", HD_OPTS);
2897 else
2898 snprintf(buf, sizeof(buf),
2899 "%s,cyls=%d,heads=%d,secs=%d%s",
2900 HD_OPTS , cyls, heads, secs,
2901 translation == BIOS_ATA_TRANSLATION_LBA ?
2902 ",trans=lba" :
2903 translation == BIOS_ATA_TRANSLATION_NONE ?
2904 ",trans=none" : "");
2905 drive_add(IF_DEFAULT, 0, optarg, buf);
2906 break;
2908 case QEMU_OPTION_hdb:
2909 case QEMU_OPTION_hdc:
2910 case QEMU_OPTION_hdd:
2911 drive_add(IF_DEFAULT, popt->index - QEMU_OPTION_hda, optarg,
2912 HD_OPTS);
2913 break;
2914 case QEMU_OPTION_drive:
2915 if (drive_def(optarg) == NULL) {
2916 exit(1);
2918 break;
2919 case QEMU_OPTION_set:
2920 if (qemu_set_option(optarg) != 0)
2921 exit(1);
2922 break;
2923 case QEMU_OPTION_global:
2924 if (qemu_global_option(optarg) != 0)
2925 exit(1);
2926 break;
2927 case QEMU_OPTION_mtdblock:
2928 drive_add(IF_MTD, -1, optarg, MTD_OPTS);
2929 break;
2930 case QEMU_OPTION_sd:
2931 drive_add(IF_SD, -1, optarg, SD_OPTS);
2932 break;
2933 case QEMU_OPTION_pflash:
2934 drive_add(IF_PFLASH, -1, optarg, PFLASH_OPTS);
2935 break;
2936 case QEMU_OPTION_snapshot:
2937 snapshot = 1;
2938 break;
2939 case QEMU_OPTION_hdachs:
2941 const char *p;
2942 p = optarg;
2943 cyls = strtol(p, (char **)&p, 0);
2944 if (cyls < 1 || cyls > 16383)
2945 goto chs_fail;
2946 if (*p != ',')
2947 goto chs_fail;
2948 p++;
2949 heads = strtol(p, (char **)&p, 0);
2950 if (heads < 1 || heads > 16)
2951 goto chs_fail;
2952 if (*p != ',')
2953 goto chs_fail;
2954 p++;
2955 secs = strtol(p, (char **)&p, 0);
2956 if (secs < 1 || secs > 63)
2957 goto chs_fail;
2958 if (*p == ',') {
2959 p++;
2960 if (!strcmp(p, "large")) {
2961 translation = BIOS_ATA_TRANSLATION_LARGE;
2962 } else if (!strcmp(p, "rechs")) {
2963 translation = BIOS_ATA_TRANSLATION_RECHS;
2964 } else if (!strcmp(p, "none")) {
2965 translation = BIOS_ATA_TRANSLATION_NONE;
2966 } else if (!strcmp(p, "lba")) {
2967 translation = BIOS_ATA_TRANSLATION_LBA;
2968 } else if (!strcmp(p, "auto")) {
2969 translation = BIOS_ATA_TRANSLATION_AUTO;
2970 } else {
2971 goto chs_fail;
2973 } else if (*p != '\0') {
2974 chs_fail:
2975 fprintf(stderr, "qemu: invalid physical CHS format\n");
2976 exit(1);
2978 if (hda_opts != NULL) {
2979 char num[16];
2980 snprintf(num, sizeof(num), "%d", cyls);
2981 qemu_opt_set(hda_opts, "cyls", num);
2982 snprintf(num, sizeof(num), "%d", heads);
2983 qemu_opt_set(hda_opts, "heads", num);
2984 snprintf(num, sizeof(num), "%d", secs);
2985 qemu_opt_set(hda_opts, "secs", num);
2986 if (translation == BIOS_ATA_TRANSLATION_LARGE) {
2987 qemu_opt_set(hda_opts, "trans", "large");
2988 } else if (translation == BIOS_ATA_TRANSLATION_RECHS) {
2989 qemu_opt_set(hda_opts, "trans", "rechs");
2990 } else if (translation == BIOS_ATA_TRANSLATION_LBA) {
2991 qemu_opt_set(hda_opts, "trans", "lba");
2992 } else if (translation == BIOS_ATA_TRANSLATION_NONE) {
2993 qemu_opt_set(hda_opts, "trans", "none");
2997 break;
2998 case QEMU_OPTION_numa:
2999 opts = qemu_opts_parse(qemu_find_opts("numa"), optarg, 1);
3000 if (!opts) {
3001 exit(1);
3003 break;
3004 case QEMU_OPTION_display:
3005 display_type = select_display(optarg);
3006 break;
3007 case QEMU_OPTION_nographic:
3008 display_type = DT_NOGRAPHIC;
3009 break;
3010 case QEMU_OPTION_curses:
3011 #ifdef CONFIG_CURSES
3012 display_type = DT_CURSES;
3013 #else
3014 fprintf(stderr, "Curses support is disabled\n");
3015 exit(1);
3016 #endif
3017 break;
3018 case QEMU_OPTION_portrait:
3019 graphic_rotate = 90;
3020 break;
3021 case QEMU_OPTION_rotate:
3022 graphic_rotate = strtol(optarg, (char **) &optarg, 10);
3023 if (graphic_rotate != 0 && graphic_rotate != 90 &&
3024 graphic_rotate != 180 && graphic_rotate != 270) {
3025 fprintf(stderr,
3026 "qemu: only 90, 180, 270 deg rotation is available\n");
3027 exit(1);
3029 break;
3030 case QEMU_OPTION_kernel:
3031 qemu_opts_set(qemu_find_opts("machine"), 0, "kernel", optarg);
3032 break;
3033 case QEMU_OPTION_initrd:
3034 qemu_opts_set(qemu_find_opts("machine"), 0, "initrd", optarg);
3035 break;
3036 case QEMU_OPTION_append:
3037 qemu_opts_set(qemu_find_opts("machine"), 0, "append", optarg);
3038 break;
3039 case QEMU_OPTION_dtb:
3040 qemu_opts_set(qemu_find_opts("machine"), 0, "dtb", optarg);
3041 break;
3042 case QEMU_OPTION_cdrom:
3043 drive_add(IF_DEFAULT, 2, optarg, CDROM_OPTS);
3044 break;
3045 case QEMU_OPTION_boot:
3046 opts = qemu_opts_parse(qemu_find_opts("boot-opts"), optarg, 1);
3047 if (!opts) {
3048 exit(1);
3050 break;
3051 case QEMU_OPTION_fda:
3052 case QEMU_OPTION_fdb:
3053 drive_add(IF_FLOPPY, popt->index - QEMU_OPTION_fda,
3054 optarg, FD_OPTS);
3055 break;
3056 case QEMU_OPTION_no_fd_bootchk:
3057 fd_bootchk = 0;
3058 break;
3059 case QEMU_OPTION_netdev:
3060 if (net_client_parse(qemu_find_opts("netdev"), optarg) == -1) {
3061 exit(1);
3063 break;
3064 case QEMU_OPTION_net:
3065 if (net_client_parse(qemu_find_opts("net"), optarg) == -1) {
3066 exit(1);
3068 break;
3069 #ifdef CONFIG_LIBISCSI
3070 case QEMU_OPTION_iscsi:
3071 opts = qemu_opts_parse(qemu_find_opts("iscsi"), optarg, 0);
3072 if (!opts) {
3073 exit(1);
3075 break;
3076 #endif
3077 #ifdef CONFIG_SLIRP
3078 case QEMU_OPTION_tftp:
3079 legacy_tftp_prefix = optarg;
3080 break;
3081 case QEMU_OPTION_bootp:
3082 legacy_bootp_filename = optarg;
3083 break;
3084 case QEMU_OPTION_redir:
3085 if (net_slirp_redir(optarg) < 0)
3086 exit(1);
3087 break;
3088 #endif
3089 case QEMU_OPTION_bt:
3090 add_device_config(DEV_BT, optarg);
3091 break;
3092 case QEMU_OPTION_audio_help:
3093 AUD_help ();
3094 exit (0);
3095 break;
3096 case QEMU_OPTION_soundhw:
3097 select_soundhw (optarg);
3098 break;
3099 case QEMU_OPTION_h:
3100 help(0);
3101 break;
3102 case QEMU_OPTION_version:
3103 version();
3104 exit(0);
3105 break;
3106 case QEMU_OPTION_m: {
3107 uint64_t sz;
3108 const char *mem_str;
3109 const char *maxmem_str, *slots_str;
3111 opts = qemu_opts_parse(qemu_find_opts("memory"),
3112 optarg, 1);
3113 if (!opts) {
3114 exit(EXIT_FAILURE);
3117 mem_str = qemu_opt_get(opts, "size");
3118 if (!mem_str) {
3119 error_report("invalid -m option, missing 'size' option");
3120 exit(EXIT_FAILURE);
3122 if (!*mem_str) {
3123 error_report("missing 'size' option value");
3124 exit(EXIT_FAILURE);
3127 sz = qemu_opt_get_size(opts, "size", ram_size);
3129 /* Fix up legacy suffix-less format */
3130 if (g_ascii_isdigit(mem_str[strlen(mem_str) - 1])) {
3131 uint64_t overflow_check = sz;
3133 sz <<= 20;
3134 if ((sz >> 20) != overflow_check) {
3135 error_report("too large 'size' option value");
3136 exit(EXIT_FAILURE);
3140 /* backward compatibility behaviour for case "-m 0" */
3141 if (sz == 0) {
3142 sz = default_ram_size;
3145 sz = QEMU_ALIGN_UP(sz, 8192);
3146 ram_size = sz;
3147 if (ram_size != sz) {
3148 error_report("ram size too large");
3149 exit(EXIT_FAILURE);
3151 maxram_size = ram_size;
3153 maxmem_str = qemu_opt_get(opts, "maxmem");
3154 slots_str = qemu_opt_get(opts, "slots");
3155 if (maxmem_str && slots_str) {
3156 uint64_t slots;
3158 sz = qemu_opt_get_size(opts, "maxmem", 0);
3159 if (sz < ram_size) {
3160 error_report("invalid -m option value: maxmem "
3161 "(0x%" PRIx64 ") <= initial memory (0x"
3162 RAM_ADDR_FMT ")", sz, ram_size);
3163 exit(EXIT_FAILURE);
3166 slots = qemu_opt_get_number(opts, "slots", 0);
3167 if ((sz > ram_size) && !slots) {
3168 error_report("invalid -m option value: maxmem "
3169 "(0x%" PRIx64 ") more than initial memory (0x"
3170 RAM_ADDR_FMT ") but no hotplug slots where "
3171 "specified", sz, ram_size);
3172 exit(EXIT_FAILURE);
3175 if ((sz <= ram_size) && slots) {
3176 error_report("invalid -m option value: %"
3177 PRIu64 " hotplug slots where specified but "
3178 "maxmem (0x%" PRIx64 ") <= initial memory (0x"
3179 RAM_ADDR_FMT ")", slots, sz, ram_size);
3180 exit(EXIT_FAILURE);
3182 maxram_size = sz;
3183 ram_slots = slots;
3184 } else if ((!maxmem_str && slots_str) ||
3185 (maxmem_str && !slots_str)) {
3186 error_report("invalid -m option value: missing "
3187 "'%s' option", slots_str ? "maxmem" : "slots");
3188 exit(EXIT_FAILURE);
3190 break;
3192 #ifdef CONFIG_TPM
3193 case QEMU_OPTION_tpmdev:
3194 if (tpm_config_parse(qemu_find_opts("tpmdev"), optarg) < 0) {
3195 exit(1);
3197 break;
3198 #endif
3199 case QEMU_OPTION_mempath:
3200 mem_path = optarg;
3201 break;
3202 case QEMU_OPTION_mem_prealloc:
3203 mem_prealloc = 1;
3204 break;
3205 case QEMU_OPTION_d:
3206 log_mask = optarg;
3207 break;
3208 case QEMU_OPTION_D:
3209 log_file = optarg;
3210 break;
3211 case QEMU_OPTION_s:
3212 add_device_config(DEV_GDB, "tcp::" DEFAULT_GDBSTUB_PORT);
3213 break;
3214 case QEMU_OPTION_gdb:
3215 add_device_config(DEV_GDB, optarg);
3216 break;
3217 case QEMU_OPTION_L:
3218 if (data_dir_idx < ARRAY_SIZE(data_dir)) {
3219 data_dir[data_dir_idx++] = optarg;
3221 break;
3222 case QEMU_OPTION_bios:
3223 qemu_opts_set(qemu_find_opts("machine"), 0, "firmware", optarg);
3224 break;
3225 case QEMU_OPTION_singlestep:
3226 singlestep = 1;
3227 break;
3228 case QEMU_OPTION_S:
3229 autostart = 0;
3230 break;
3231 case QEMU_OPTION_k:
3232 keyboard_layout = optarg;
3233 break;
3234 case QEMU_OPTION_localtime:
3235 rtc_utc = 0;
3236 break;
3237 case QEMU_OPTION_vga:
3238 vga_model = optarg;
3239 default_vga = 0;
3240 break;
3241 case QEMU_OPTION_g:
3243 const char *p;
3244 int w, h, depth;
3245 p = optarg;
3246 w = strtol(p, (char **)&p, 10);
3247 if (w <= 0) {
3248 graphic_error:
3249 fprintf(stderr, "qemu: invalid resolution or depth\n");
3250 exit(1);
3252 if (*p != 'x')
3253 goto graphic_error;
3254 p++;
3255 h = strtol(p, (char **)&p, 10);
3256 if (h <= 0)
3257 goto graphic_error;
3258 if (*p == 'x') {
3259 p++;
3260 depth = strtol(p, (char **)&p, 10);
3261 if (depth != 8 && depth != 15 && depth != 16 &&
3262 depth != 24 && depth != 32)
3263 goto graphic_error;
3264 } else if (*p == '\0') {
3265 depth = graphic_depth;
3266 } else {
3267 goto graphic_error;
3270 graphic_width = w;
3271 graphic_height = h;
3272 graphic_depth = depth;
3274 break;
3275 case QEMU_OPTION_echr:
3277 char *r;
3278 term_escape_char = strtol(optarg, &r, 0);
3279 if (r == optarg)
3280 printf("Bad argument to echr\n");
3281 break;
3283 case QEMU_OPTION_monitor:
3284 default_monitor = 0;
3285 if (strncmp(optarg, "none", 4)) {
3286 monitor_parse(optarg, "readline");
3288 break;
3289 case QEMU_OPTION_qmp:
3290 monitor_parse(optarg, "control");
3291 default_monitor = 0;
3292 break;
3293 case QEMU_OPTION_mon:
3294 opts = qemu_opts_parse(qemu_find_opts("mon"), optarg, 1);
3295 if (!opts) {
3296 exit(1);
3298 default_monitor = 0;
3299 break;
3300 case QEMU_OPTION_chardev:
3301 opts = qemu_opts_parse(qemu_find_opts("chardev"), optarg, 1);
3302 if (!opts) {
3303 exit(1);
3305 break;
3306 case QEMU_OPTION_fsdev:
3307 olist = qemu_find_opts("fsdev");
3308 if (!olist) {
3309 fprintf(stderr, "fsdev is not supported by this qemu build.\n");
3310 exit(1);
3312 opts = qemu_opts_parse(olist, optarg, 1);
3313 if (!opts) {
3314 exit(1);
3316 break;
3317 case QEMU_OPTION_virtfs: {
3318 QemuOpts *fsdev;
3319 QemuOpts *device;
3320 const char *writeout, *sock_fd, *socket;
3322 olist = qemu_find_opts("virtfs");
3323 if (!olist) {
3324 fprintf(stderr, "virtfs is not supported by this qemu build.\n");
3325 exit(1);
3327 opts = qemu_opts_parse(olist, optarg, 1);
3328 if (!opts) {
3329 exit(1);
3332 if (qemu_opt_get(opts, "fsdriver") == NULL ||
3333 qemu_opt_get(opts, "mount_tag") == NULL) {
3334 fprintf(stderr, "Usage: -virtfs fsdriver,mount_tag=tag.\n");
3335 exit(1);
3337 fsdev = qemu_opts_create(qemu_find_opts("fsdev"),
3338 qemu_opt_get(opts, "mount_tag"),
3339 1, NULL);
3340 if (!fsdev) {
3341 fprintf(stderr, "duplicate fsdev id: %s\n",
3342 qemu_opt_get(opts, "mount_tag"));
3343 exit(1);
3346 writeout = qemu_opt_get(opts, "writeout");
3347 if (writeout) {
3348 #ifdef CONFIG_SYNC_FILE_RANGE
3349 qemu_opt_set(fsdev, "writeout", writeout);
3350 #else
3351 fprintf(stderr, "writeout=immediate not supported on "
3352 "this platform\n");
3353 exit(1);
3354 #endif
3356 qemu_opt_set(fsdev, "fsdriver", qemu_opt_get(opts, "fsdriver"));
3357 qemu_opt_set(fsdev, "path", qemu_opt_get(opts, "path"));
3358 qemu_opt_set(fsdev, "security_model",
3359 qemu_opt_get(opts, "security_model"));
3360 socket = qemu_opt_get(opts, "socket");
3361 if (socket) {
3362 qemu_opt_set(fsdev, "socket", socket);
3364 sock_fd = qemu_opt_get(opts, "sock_fd");
3365 if (sock_fd) {
3366 qemu_opt_set(fsdev, "sock_fd", sock_fd);
3369 qemu_opt_set_bool(fsdev, "readonly",
3370 qemu_opt_get_bool(opts, "readonly", 0));
3371 device = qemu_opts_create(qemu_find_opts("device"), NULL, 0,
3372 &error_abort);
3373 qemu_opt_set(device, "driver", "virtio-9p-pci");
3374 qemu_opt_set(device, "fsdev",
3375 qemu_opt_get(opts, "mount_tag"));
3376 qemu_opt_set(device, "mount_tag",
3377 qemu_opt_get(opts, "mount_tag"));
3378 break;
3380 case QEMU_OPTION_virtfs_synth: {
3381 QemuOpts *fsdev;
3382 QemuOpts *device;
3384 fsdev = qemu_opts_create(qemu_find_opts("fsdev"), "v_synth",
3385 1, NULL);
3386 if (!fsdev) {
3387 fprintf(stderr, "duplicate option: %s\n", "virtfs_synth");
3388 exit(1);
3390 qemu_opt_set(fsdev, "fsdriver", "synth");
3392 device = qemu_opts_create(qemu_find_opts("device"), NULL, 0,
3393 &error_abort);
3394 qemu_opt_set(device, "driver", "virtio-9p-pci");
3395 qemu_opt_set(device, "fsdev", "v_synth");
3396 qemu_opt_set(device, "mount_tag", "v_synth");
3397 break;
3399 case QEMU_OPTION_serial:
3400 add_device_config(DEV_SERIAL, optarg);
3401 default_serial = 0;
3402 if (strncmp(optarg, "mon:", 4) == 0) {
3403 default_monitor = 0;
3405 break;
3406 case QEMU_OPTION_watchdog:
3407 if (watchdog) {
3408 fprintf(stderr,
3409 "qemu: only one watchdog option may be given\n");
3410 return 1;
3412 watchdog = optarg;
3413 break;
3414 case QEMU_OPTION_watchdog_action:
3415 if (select_watchdog_action(optarg) == -1) {
3416 fprintf(stderr, "Unknown -watchdog-action parameter\n");
3417 exit(1);
3419 break;
3420 case QEMU_OPTION_virtiocon:
3421 add_device_config(DEV_VIRTCON, optarg);
3422 default_virtcon = 0;
3423 if (strncmp(optarg, "mon:", 4) == 0) {
3424 default_monitor = 0;
3426 break;
3427 case QEMU_OPTION_parallel:
3428 add_device_config(DEV_PARALLEL, optarg);
3429 default_parallel = 0;
3430 if (strncmp(optarg, "mon:", 4) == 0) {
3431 default_monitor = 0;
3433 break;
3434 case QEMU_OPTION_debugcon:
3435 add_device_config(DEV_DEBUGCON, optarg);
3436 break;
3437 case QEMU_OPTION_loadvm:
3438 loadvm = optarg;
3439 break;
3440 case QEMU_OPTION_full_screen:
3441 full_screen = 1;
3442 break;
3443 case QEMU_OPTION_no_frame:
3444 no_frame = 1;
3445 break;
3446 case QEMU_OPTION_alt_grab:
3447 alt_grab = 1;
3448 break;
3449 case QEMU_OPTION_ctrl_grab:
3450 ctrl_grab = 1;
3451 break;
3452 case QEMU_OPTION_no_quit:
3453 no_quit = 1;
3454 break;
3455 case QEMU_OPTION_sdl:
3456 #ifdef CONFIG_SDL
3457 display_type = DT_SDL;
3458 break;
3459 #else
3460 fprintf(stderr, "SDL support is disabled\n");
3461 exit(1);
3462 #endif
3463 case QEMU_OPTION_pidfile:
3464 pid_file = optarg;
3465 break;
3466 case QEMU_OPTION_win2k_hack:
3467 win2k_install_hack = 1;
3468 break;
3469 case QEMU_OPTION_rtc_td_hack: {
3470 static GlobalProperty slew_lost_ticks[] = {
3472 .driver = "mc146818rtc",
3473 .property = "lost_tick_policy",
3474 .value = "slew",
3476 { /* end of list */ }
3479 qdev_prop_register_global_list(slew_lost_ticks);
3480 break;
3482 case QEMU_OPTION_acpitable:
3483 opts = qemu_opts_parse(qemu_find_opts("acpi"), optarg, 1);
3484 if (!opts) {
3485 exit(1);
3487 do_acpitable_option(opts);
3488 break;
3489 case QEMU_OPTION_smbios:
3490 opts = qemu_opts_parse(qemu_find_opts("smbios"), optarg, 0);
3491 if (!opts) {
3492 exit(1);
3494 do_smbios_option(opts);
3495 break;
3496 case QEMU_OPTION_enable_kvm:
3497 olist = qemu_find_opts("machine");
3498 qemu_opts_parse(olist, "accel=kvm", 0);
3499 break;
3500 case QEMU_OPTION_machine:
3501 olist = qemu_find_opts("machine");
3502 opts = qemu_opts_parse(olist, optarg, 1);
3503 if (!opts) {
3504 exit(1);
3506 optarg = qemu_opt_get(opts, "type");
3507 if (optarg) {
3508 machine_class = machine_parse(optarg);
3510 break;
3511 case QEMU_OPTION_no_kvm:
3512 olist = qemu_find_opts("machine");
3513 qemu_opts_parse(olist, "accel=tcg", 0);
3514 break;
3515 case QEMU_OPTION_no_kvm_pit: {
3516 fprintf(stderr, "Warning: KVM PIT can no longer be disabled "
3517 "separately.\n");
3518 break;
3520 case QEMU_OPTION_no_kvm_pit_reinjection: {
3521 static GlobalProperty kvm_pit_lost_tick_policy[] = {
3523 .driver = "kvm-pit",
3524 .property = "lost_tick_policy",
3525 .value = "discard",
3527 { /* end of list */ }
3530 fprintf(stderr, "Warning: option deprecated, use "
3531 "lost_tick_policy property of kvm-pit instead.\n");
3532 qdev_prop_register_global_list(kvm_pit_lost_tick_policy);
3533 break;
3535 case QEMU_OPTION_usb:
3536 olist = qemu_find_opts("machine");
3537 qemu_opts_parse(olist, "usb=on", 0);
3538 break;
3539 case QEMU_OPTION_usbdevice:
3540 olist = qemu_find_opts("machine");
3541 qemu_opts_parse(olist, "usb=on", 0);
3542 add_device_config(DEV_USB, optarg);
3543 break;
3544 case QEMU_OPTION_device:
3545 if (!qemu_opts_parse(qemu_find_opts("device"), optarg, 1)) {
3546 exit(1);
3548 break;
3549 case QEMU_OPTION_smp:
3550 if (!qemu_opts_parse(qemu_find_opts("smp-opts"), optarg, 1)) {
3551 exit(1);
3553 break;
3554 case QEMU_OPTION_vnc:
3555 #ifdef CONFIG_VNC
3556 display_remote++;
3557 vnc_display = optarg;
3558 #else
3559 fprintf(stderr, "VNC support is disabled\n");
3560 exit(1);
3561 #endif
3562 break;
3563 case QEMU_OPTION_no_acpi:
3564 acpi_enabled = 0;
3565 break;
3566 case QEMU_OPTION_no_hpet:
3567 no_hpet = 1;
3568 break;
3569 case QEMU_OPTION_balloon:
3570 if (balloon_parse(optarg) < 0) {
3571 fprintf(stderr, "Unknown -balloon argument %s\n", optarg);
3572 exit(1);
3574 break;
3575 case QEMU_OPTION_no_reboot:
3576 no_reboot = 1;
3577 break;
3578 case QEMU_OPTION_no_shutdown:
3579 no_shutdown = 1;
3580 break;
3581 case QEMU_OPTION_show_cursor:
3582 cursor_hide = 0;
3583 break;
3584 case QEMU_OPTION_uuid:
3585 if(qemu_uuid_parse(optarg, qemu_uuid) < 0) {
3586 fprintf(stderr, "Fail to parse UUID string."
3587 " Wrong format.\n");
3588 exit(1);
3590 qemu_uuid_set = true;
3591 break;
3592 case QEMU_OPTION_option_rom:
3593 if (nb_option_roms >= MAX_OPTION_ROMS) {
3594 fprintf(stderr, "Too many option ROMs\n");
3595 exit(1);
3597 opts = qemu_opts_parse(qemu_find_opts("option-rom"), optarg, 1);
3598 if (!opts) {
3599 exit(1);
3601 option_rom[nb_option_roms].name = qemu_opt_get(opts, "romfile");
3602 option_rom[nb_option_roms].bootindex =
3603 qemu_opt_get_number(opts, "bootindex", -1);
3604 if (!option_rom[nb_option_roms].name) {
3605 fprintf(stderr, "Option ROM file is not specified\n");
3606 exit(1);
3608 nb_option_roms++;
3609 break;
3610 case QEMU_OPTION_semihosting:
3611 semihosting_enabled = 1;
3612 break;
3613 case QEMU_OPTION_tdf:
3614 fprintf(stderr, "Warning: user space PIT time drift fix "
3615 "is no longer supported.\n");
3616 break;
3617 case QEMU_OPTION_name:
3618 opts = qemu_opts_parse(qemu_find_opts("name"), optarg, 1);
3619 if (!opts) {
3620 exit(1);
3622 break;
3623 case QEMU_OPTION_prom_env:
3624 if (nb_prom_envs >= MAX_PROM_ENVS) {
3625 fprintf(stderr, "Too many prom variables\n");
3626 exit(1);
3628 prom_envs[nb_prom_envs] = optarg;
3629 nb_prom_envs++;
3630 break;
3631 case QEMU_OPTION_old_param:
3632 old_param = 1;
3633 break;
3634 case QEMU_OPTION_clock:
3635 /* Clock options no longer exist. Keep this option for
3636 * backward compatibility.
3638 break;
3639 case QEMU_OPTION_startdate:
3640 configure_rtc_date_offset(optarg, 1);
3641 break;
3642 case QEMU_OPTION_rtc:
3643 opts = qemu_opts_parse(qemu_find_opts("rtc"), optarg, 0);
3644 if (!opts) {
3645 exit(1);
3647 configure_rtc(opts);
3648 break;
3649 case QEMU_OPTION_tb_size:
3650 tcg_tb_size = strtol(optarg, NULL, 0);
3651 if (tcg_tb_size < 0) {
3652 tcg_tb_size = 0;
3654 break;
3655 case QEMU_OPTION_icount:
3656 icount_opts = qemu_opts_parse(qemu_find_opts("icount"),
3657 optarg, 1);
3658 if (!icount_opts) {
3659 exit(1);
3661 break;
3662 case QEMU_OPTION_incoming:
3663 incoming = optarg;
3664 runstate_set(RUN_STATE_INMIGRATE);
3665 break;
3666 case QEMU_OPTION_nodefaults:
3667 has_defaults = 0;
3668 break;
3669 case QEMU_OPTION_xen_domid:
3670 if (!(xen_available())) {
3671 printf("Option %s not supported for this target\n", popt->name);
3672 exit(1);
3674 xen_domid = atoi(optarg);
3675 break;
3676 case QEMU_OPTION_xen_create:
3677 if (!(xen_available())) {
3678 printf("Option %s not supported for this target\n", popt->name);
3679 exit(1);
3681 xen_mode = XEN_CREATE;
3682 break;
3683 case QEMU_OPTION_xen_attach:
3684 if (!(xen_available())) {
3685 printf("Option %s not supported for this target\n", popt->name);
3686 exit(1);
3688 xen_mode = XEN_ATTACH;
3689 break;
3690 case QEMU_OPTION_trace:
3692 opts = qemu_opts_parse(qemu_find_opts("trace"), optarg, 0);
3693 if (!opts) {
3694 exit(1);
3696 trace_events = qemu_opt_get(opts, "events");
3697 trace_file = qemu_opt_get(opts, "file");
3698 break;
3700 case QEMU_OPTION_readconfig:
3702 int ret = qemu_read_config_file(optarg);
3703 if (ret < 0) {
3704 fprintf(stderr, "read config %s: %s\n", optarg,
3705 strerror(-ret));
3706 exit(1);
3708 break;
3710 case QEMU_OPTION_spice:
3711 olist = qemu_find_opts("spice");
3712 if (!olist) {
3713 fprintf(stderr, "spice is not supported by this qemu build.\n");
3714 exit(1);
3716 opts = qemu_opts_parse(olist, optarg, 0);
3717 if (!opts) {
3718 exit(1);
3720 display_remote++;
3721 break;
3722 case QEMU_OPTION_writeconfig:
3724 FILE *fp;
3725 if (strcmp(optarg, "-") == 0) {
3726 fp = stdout;
3727 } else {
3728 fp = fopen(optarg, "w");
3729 if (fp == NULL) {
3730 fprintf(stderr, "open %s: %s\n", optarg, strerror(errno));
3731 exit(1);
3734 qemu_config_write(fp);
3735 if (fp != stdout) {
3736 fclose(fp);
3738 break;
3740 case QEMU_OPTION_qtest:
3741 qtest_chrdev = optarg;
3742 break;
3743 case QEMU_OPTION_qtest_log:
3744 qtest_log = optarg;
3745 break;
3746 case QEMU_OPTION_sandbox:
3747 opts = qemu_opts_parse(qemu_find_opts("sandbox"), optarg, 1);
3748 if (!opts) {
3749 exit(1);
3751 break;
3752 case QEMU_OPTION_add_fd:
3753 #ifndef _WIN32
3754 opts = qemu_opts_parse(qemu_find_opts("add-fd"), optarg, 0);
3755 if (!opts) {
3756 exit(1);
3758 #else
3759 error_report("File descriptor passing is disabled on this "
3760 "platform");
3761 exit(1);
3762 #endif
3763 break;
3764 case QEMU_OPTION_object:
3765 opts = qemu_opts_parse(qemu_find_opts("object"), optarg, 1);
3766 if (!opts) {
3767 exit(1);
3769 break;
3770 case QEMU_OPTION_realtime:
3771 opts = qemu_opts_parse(qemu_find_opts("realtime"), optarg, 0);
3772 if (!opts) {
3773 exit(1);
3775 enable_mlock = qemu_opt_get_bool(opts, "mlock", true);
3776 break;
3777 case QEMU_OPTION_msg:
3778 opts = qemu_opts_parse(qemu_find_opts("msg"), optarg, 0);
3779 if (!opts) {
3780 exit(1);
3782 configure_msg(opts);
3783 break;
3784 case QEMU_OPTION_dump_vmstate:
3785 vmstate_dump_file = fopen(optarg, "w");
3786 if (vmstate_dump_file == NULL) {
3787 fprintf(stderr, "open %s: %s\n", optarg, strerror(errno));
3788 exit(1);
3790 break;
3791 default:
3792 os_parse_cmd_args(popt->index, optarg);
3796 loc_set_none();
3798 os_daemonize();
3800 if (qemu_init_main_loop(&main_loop_err)) {
3801 error_report("%s", error_get_pretty(main_loop_err));
3802 exit(1);
3805 if (qemu_opts_foreach(qemu_find_opts("sandbox"), parse_sandbox, NULL, 0)) {
3806 exit(1);
3809 if (qemu_opts_foreach(qemu_find_opts("name"), parse_name, NULL, 1)) {
3810 exit(1);
3813 #ifndef _WIN32
3814 if (qemu_opts_foreach(qemu_find_opts("add-fd"), parse_add_fd, NULL, 1)) {
3815 exit(1);
3818 if (qemu_opts_foreach(qemu_find_opts("add-fd"), cleanup_add_fd, NULL, 1)) {
3819 exit(1);
3821 #endif
3823 if (machine_class == NULL) {
3824 fprintf(stderr, "No machine specified, and there is no default.\n"
3825 "Use -machine help to list supported machines!\n");
3826 exit(1);
3829 current_machine = MACHINE(object_new(object_class_get_name(
3830 OBJECT_CLASS(machine_class))));
3831 object_property_add_child(object_get_root(), "machine",
3832 OBJECT(current_machine), &error_abort);
3833 cpu_exec_init_all();
3835 if (machine_class->hw_version) {
3836 qemu_set_version(machine_class->hw_version);
3839 /* Init CPU def lists, based on config
3840 * - Must be called after all the qemu_read_config_file() calls
3841 * - Must be called before list_cpus()
3842 * - Must be called before machine->init()
3844 cpudef_init();
3846 if (cpu_model && is_help_option(cpu_model)) {
3847 list_cpus(stdout, &fprintf, cpu_model);
3848 exit(0);
3851 /* Open the logfile at this point, if necessary. We can't open the logfile
3852 * when encountering either of the logging options (-d or -D) because the
3853 * other one may be encountered later on the command line, changing the
3854 * location or level of logging.
3856 if (log_mask) {
3857 int mask;
3858 if (log_file) {
3859 qemu_set_log_filename(log_file);
3862 mask = qemu_str_to_log_mask(log_mask);
3863 if (!mask) {
3864 qemu_print_log_usage(stdout);
3865 exit(1);
3867 qemu_set_log(mask);
3870 if (!is_daemonized()) {
3871 if (!trace_init_backends(trace_events, trace_file)) {
3872 exit(1);
3876 /* If no data_dir is specified then try to find it relative to the
3877 executable path. */
3878 if (data_dir_idx < ARRAY_SIZE(data_dir)) {
3879 data_dir[data_dir_idx] = os_find_datadir();
3880 if (data_dir[data_dir_idx] != NULL) {
3881 data_dir_idx++;
3884 /* If all else fails use the install path specified when building. */
3885 if (data_dir_idx < ARRAY_SIZE(data_dir)) {
3886 data_dir[data_dir_idx++] = CONFIG_QEMU_DATADIR;
3889 smp_parse(qemu_opts_find(qemu_find_opts("smp-opts"), NULL));
3891 machine_class->max_cpus = machine_class->max_cpus ?: 1; /* Default to UP */
3892 if (smp_cpus > machine_class->max_cpus) {
3893 fprintf(stderr, "Number of SMP cpus requested (%d), exceeds max cpus "
3894 "supported by machine `%s' (%d)\n", smp_cpus,
3895 machine_class->name, machine_class->max_cpus);
3896 exit(1);
3900 * Get the default machine options from the machine if it is not already
3901 * specified either by the configuration file or by the command line.
3903 if (machine_class->default_machine_opts) {
3904 qemu_opts_set_defaults(qemu_find_opts("machine"),
3905 machine_class->default_machine_opts, 0);
3908 qemu_opts_foreach(qemu_find_opts("device"), default_driver_check, NULL, 0);
3909 qemu_opts_foreach(qemu_find_opts("global"), default_driver_check, NULL, 0);
3911 if (!vga_model && !default_vga) {
3912 vga_interface_type = VGA_DEVICE;
3914 if (!has_defaults || machine_class->no_serial) {
3915 default_serial = 0;
3917 if (!has_defaults || machine_class->no_parallel) {
3918 default_parallel = 0;
3920 if (!has_defaults || !machine_class->use_virtcon) {
3921 default_virtcon = 0;
3923 if (!has_defaults || !machine_class->use_sclp) {
3924 default_sclp = 0;
3926 if (!has_defaults || machine_class->no_floppy) {
3927 default_floppy = 0;
3929 if (!has_defaults || machine_class->no_cdrom) {
3930 default_cdrom = 0;
3932 if (!has_defaults || machine_class->no_sdcard) {
3933 default_sdcard = 0;
3935 if (!has_defaults) {
3936 default_monitor = 0;
3937 default_net = 0;
3938 default_vga = 0;
3941 if (is_daemonized()) {
3942 /* According to documentation and historically, -nographic redirects
3943 * serial port, parallel port and monitor to stdio, which does not work
3944 * with -daemonize. We can redirect these to null instead, but since
3945 * -nographic is legacy, let's just error out.
3946 * We disallow -nographic only if all other ports are not redirected
3947 * explicitly, to not break existing legacy setups which uses
3948 * -nographic _and_ redirects all ports explicitly - this is valid
3949 * usage, -nographic is just a no-op in this case.
3951 if (display_type == DT_NOGRAPHIC
3952 && (default_parallel || default_serial
3953 || default_monitor || default_virtcon)) {
3954 fprintf(stderr, "-nographic can not be used with -daemonize\n");
3955 exit(1);
3957 #ifdef CONFIG_CURSES
3958 if (display_type == DT_CURSES) {
3959 fprintf(stderr, "curses display can not be used with -daemonize\n");
3960 exit(1);
3962 #endif
3965 if (display_type == DT_NOGRAPHIC) {
3966 if (default_parallel)
3967 add_device_config(DEV_PARALLEL, "null");
3968 if (default_serial && default_monitor) {
3969 add_device_config(DEV_SERIAL, "mon:stdio");
3970 } else if (default_virtcon && default_monitor) {
3971 add_device_config(DEV_VIRTCON, "mon:stdio");
3972 } else if (default_sclp && default_monitor) {
3973 add_device_config(DEV_SCLP, "mon:stdio");
3974 } else {
3975 if (default_serial)
3976 add_device_config(DEV_SERIAL, "stdio");
3977 if (default_virtcon)
3978 add_device_config(DEV_VIRTCON, "stdio");
3979 if (default_sclp) {
3980 add_device_config(DEV_SCLP, "stdio");
3982 if (default_monitor)
3983 monitor_parse("stdio", "readline");
3985 } else {
3986 if (default_serial)
3987 add_device_config(DEV_SERIAL, "vc:80Cx24C");
3988 if (default_parallel)
3989 add_device_config(DEV_PARALLEL, "vc:80Cx24C");
3990 if (default_monitor)
3991 monitor_parse("vc:80Cx24C", "readline");
3992 if (default_virtcon)
3993 add_device_config(DEV_VIRTCON, "vc:80Cx24C");
3994 if (default_sclp) {
3995 add_device_config(DEV_SCLP, "vc:80Cx24C");
3999 if (display_type == DT_DEFAULT && !display_remote) {
4000 #if defined(CONFIG_GTK)
4001 display_type = DT_GTK;
4002 #elif defined(CONFIG_SDL) || defined(CONFIG_COCOA)
4003 display_type = DT_SDL;
4004 #elif defined(CONFIG_VNC)
4005 vnc_display = "localhost:0,to=99";
4006 show_vnc_port = 1;
4007 #else
4008 display_type = DT_NONE;
4009 #endif
4012 if ((no_frame || alt_grab || ctrl_grab) && display_type != DT_SDL) {
4013 fprintf(stderr, "-no-frame, -alt-grab and -ctrl-grab are only valid "
4014 "for SDL, ignoring option\n");
4016 if (no_quit && (display_type != DT_GTK && display_type != DT_SDL)) {
4017 fprintf(stderr, "-no-quit is only valid for GTK and SDL, "
4018 "ignoring option\n");
4021 #if defined(CONFIG_GTK)
4022 if (display_type == DT_GTK) {
4023 early_gtk_display_init();
4025 #endif
4027 socket_init();
4029 if (qemu_opts_foreach(qemu_find_opts("chardev"), chardev_init_func, NULL, 1) != 0)
4030 exit(1);
4031 #ifdef CONFIG_VIRTFS
4032 if (qemu_opts_foreach(qemu_find_opts("fsdev"), fsdev_init_func, NULL, 1) != 0) {
4033 exit(1);
4035 #endif
4037 if (pid_file && qemu_create_pidfile(pid_file) != 0) {
4038 os_pidfile_error();
4039 exit(1);
4042 /* store value for the future use */
4043 qemu_opt_set_number(qemu_find_opts_singleton("memory"), "size", ram_size);
4045 if (qemu_opts_foreach(qemu_find_opts("device"), device_help_func, NULL, 0)
4046 != 0) {
4047 exit(0);
4050 if (qemu_opts_foreach(qemu_find_opts("object"),
4051 object_create, NULL, 0) != 0) {
4052 exit(1);
4055 machine_opts = qemu_get_machine_opts();
4056 if (qemu_opt_foreach(machine_opts, machine_set_property, current_machine,
4057 1) < 0) {
4058 object_unref(OBJECT(current_machine));
4059 exit(1);
4062 configure_accelerator(current_machine);
4064 if (qtest_chrdev) {
4065 Error *local_err = NULL;
4066 qtest_init(qtest_chrdev, qtest_log, &local_err);
4067 if (local_err) {
4068 error_report("%s", error_get_pretty(local_err));
4069 error_free(local_err);
4070 exit(1);
4074 machine_opts = qemu_get_machine_opts();
4075 kernel_filename = qemu_opt_get(machine_opts, "kernel");
4076 initrd_filename = qemu_opt_get(machine_opts, "initrd");
4077 kernel_cmdline = qemu_opt_get(machine_opts, "append");
4078 bios_name = qemu_opt_get(machine_opts, "firmware");
4080 boot_order = machine_class->default_boot_order;
4081 opts = qemu_opts_find(qemu_find_opts("boot-opts"), NULL);
4082 if (opts) {
4083 char *normal_boot_order;
4084 const char *order, *once;
4086 order = qemu_opt_get(opts, "order");
4087 if (order) {
4088 validate_bootdevices(order);
4089 boot_order = order;
4092 once = qemu_opt_get(opts, "once");
4093 if (once) {
4094 validate_bootdevices(once);
4095 normal_boot_order = g_strdup(boot_order);
4096 boot_order = once;
4097 qemu_register_reset(restore_boot_order, normal_boot_order);
4100 boot_menu = qemu_opt_get_bool(opts, "menu", boot_menu);
4101 boot_strict = qemu_opt_get_bool(opts, "strict", false);
4104 if (!kernel_cmdline) {
4105 kernel_cmdline = "";
4106 current_machine->kernel_cmdline = (char *)kernel_cmdline;
4109 linux_boot = (kernel_filename != NULL);
4111 if (!linux_boot && *kernel_cmdline != '\0') {
4112 fprintf(stderr, "-append only allowed with -kernel option\n");
4113 exit(1);
4116 if (!linux_boot && initrd_filename != NULL) {
4117 fprintf(stderr, "-initrd only allowed with -kernel option\n");
4118 exit(1);
4121 if (!linux_boot && qemu_opt_get(machine_opts, "dtb")) {
4122 fprintf(stderr, "-dtb only allowed with -kernel option\n");
4123 exit(1);
4126 os_set_line_buffering();
4128 qemu_init_cpu_loop();
4129 qemu_mutex_lock_iothread();
4131 #ifdef CONFIG_SPICE
4132 /* spice needs the timers to be initialized by this point */
4133 qemu_spice_init();
4134 #endif
4136 cpu_ticks_init();
4137 if (icount_opts) {
4138 if (kvm_enabled() || xen_enabled()) {
4139 fprintf(stderr, "-icount is not allowed with kvm or xen\n");
4140 exit(1);
4142 configure_icount(icount_opts, &error_abort);
4143 qemu_opts_del(icount_opts);
4146 /* clean up network at qemu process termination */
4147 atexit(&net_cleanup);
4149 if (net_init_clients() < 0) {
4150 exit(1);
4153 #ifdef CONFIG_TPM
4154 if (tpm_init() < 0) {
4155 exit(1);
4157 #endif
4159 /* init the bluetooth world */
4160 if (foreach_device_config(DEV_BT, bt_parse))
4161 exit(1);
4163 if (!xen_enabled()) {
4164 /* On 32-bit hosts, QEMU is limited by virtual address space */
4165 if (ram_size > (2047 << 20) && HOST_LONG_BITS == 32) {
4166 fprintf(stderr, "qemu: at most 2047 MB RAM can be simulated\n");
4167 exit(1);
4171 blk_mig_init();
4172 ram_mig_init();
4174 /* If the currently selected machine wishes to override the units-per-bus
4175 * property of its default HBA interface type, do so now. */
4176 if (machine_class->units_per_default_bus) {
4177 override_max_devs(machine_class->block_default_type,
4178 machine_class->units_per_default_bus);
4181 /* open the virtual block devices */
4182 if (snapshot)
4183 qemu_opts_foreach(qemu_find_opts("drive"), drive_enable_snapshot, NULL, 0);
4184 if (qemu_opts_foreach(qemu_find_opts("drive"), drive_init_func,
4185 &machine_class->block_default_type, 1) != 0) {
4186 exit(1);
4189 default_drive(default_cdrom, snapshot, machine_class->block_default_type, 2,
4190 CDROM_OPTS);
4191 default_drive(default_floppy, snapshot, IF_FLOPPY, 0, FD_OPTS);
4192 default_drive(default_sdcard, snapshot, IF_SD, 0, SD_OPTS);
4194 if (qemu_opts_foreach(qemu_find_opts("numa"), numa_init_func,
4195 NULL, 1) != 0) {
4196 exit(1);
4199 set_numa_nodes();
4201 if (qemu_opts_foreach(qemu_find_opts("mon"), mon_init_func, NULL, 1) != 0) {
4202 exit(1);
4205 if (foreach_device_config(DEV_SERIAL, serial_parse) < 0)
4206 exit(1);
4207 if (foreach_device_config(DEV_PARALLEL, parallel_parse) < 0)
4208 exit(1);
4209 if (foreach_device_config(DEV_VIRTCON, virtcon_parse) < 0)
4210 exit(1);
4211 if (foreach_device_config(DEV_SCLP, sclp_parse) < 0) {
4212 exit(1);
4214 if (foreach_device_config(DEV_DEBUGCON, debugcon_parse) < 0)
4215 exit(1);
4217 /* If no default VGA is requested, the default is "none". */
4218 if (default_vga) {
4219 if (cirrus_vga_available()) {
4220 vga_model = "cirrus";
4221 } else if (vga_available()) {
4222 vga_model = "std";
4225 if (vga_model) {
4226 select_vgahw(vga_model);
4229 if (watchdog) {
4230 i = select_watchdog(watchdog);
4231 if (i > 0)
4232 exit (i == 1 ? 1 : 0);
4235 if (machine_class->compat_props) {
4236 qdev_prop_register_global_list(machine_class->compat_props);
4238 qemu_add_globals();
4240 qdev_machine_init();
4242 current_machine->ram_size = ram_size;
4243 current_machine->maxram_size = maxram_size;
4244 current_machine->ram_slots = ram_slots;
4245 current_machine->boot_order = boot_order;
4246 current_machine->cpu_model = cpu_model;
4248 machine_class->init(current_machine);
4250 realtime_init();
4252 audio_init();
4254 cpu_synchronize_all_post_init();
4256 set_numa_modes();
4258 /* init USB devices */
4259 if (usb_enabled(false)) {
4260 if (foreach_device_config(DEV_USB, usb_parse) < 0)
4261 exit(1);
4264 /* init generic devices */
4265 if (qemu_opts_foreach(qemu_find_opts("device"), device_init_func, NULL, 1) != 0)
4266 exit(1);
4268 /* Did we create any drives that we failed to create a device for? */
4269 drive_check_orphaned();
4271 net_check_clients();
4273 ds = init_displaystate();
4275 /* init local displays */
4276 switch (display_type) {
4277 case DT_NOGRAPHIC:
4278 (void)ds; /* avoid warning if no display is configured */
4279 break;
4280 #if defined(CONFIG_CURSES)
4281 case DT_CURSES:
4282 curses_display_init(ds, full_screen);
4283 break;
4284 #endif
4285 #if defined(CONFIG_SDL)
4286 case DT_SDL:
4287 sdl_display_init(ds, full_screen, no_frame);
4288 break;
4289 #elif defined(CONFIG_COCOA)
4290 case DT_SDL:
4291 cocoa_display_init(ds, full_screen);
4292 break;
4293 #endif
4294 #if defined(CONFIG_GTK)
4295 case DT_GTK:
4296 gtk_display_init(ds, full_screen, grab_on_hover);
4297 break;
4298 #endif
4299 default:
4300 break;
4303 /* must be after terminal init, SDL library changes signal handlers */
4304 os_setup_signal_handling();
4306 #ifdef CONFIG_VNC
4307 /* init remote displays */
4308 if (vnc_display) {
4309 Error *local_err = NULL;
4310 vnc_display_init(ds);
4311 vnc_display_open(ds, vnc_display, &local_err);
4312 if (local_err != NULL) {
4313 error_report("Failed to start VNC server on `%s': %s",
4314 vnc_display, error_get_pretty(local_err));
4315 error_free(local_err);
4316 exit(1);
4319 if (show_vnc_port) {
4320 printf("VNC server running on `%s'\n", vnc_display_local_addr(ds));
4323 #endif
4324 #ifdef CONFIG_SPICE
4325 if (using_spice) {
4326 qemu_spice_display_init();
4328 #endif
4330 if (foreach_device_config(DEV_GDB, gdbserver_start) < 0) {
4331 exit(1);
4334 qdev_machine_creation_done();
4336 if (rom_load_all() != 0) {
4337 fprintf(stderr, "rom loading failed\n");
4338 exit(1);
4341 /* TODO: once all bus devices are qdevified, this should be done
4342 * when bus is created by qdev.c */
4343 qemu_register_reset(qbus_reset_all_fn, sysbus_get_default());
4344 qemu_run_machine_init_done_notifiers();
4346 /* Done notifiers can load ROMs */
4347 rom_load_done();
4349 qemu_system_reset(VMRESET_SILENT);
4350 if (loadvm) {
4351 if (load_vmstate(loadvm) < 0) {
4352 autostart = 0;
4356 qdev_prop_check_globals();
4357 if (vmstate_dump_file) {
4358 /* dump and exit */
4359 dump_vmstate_json_to_file(vmstate_dump_file);
4360 return 0;
4363 if (incoming) {
4364 Error *local_err = NULL;
4365 qemu_start_incoming_migration(incoming, &local_err);
4366 if (local_err) {
4367 error_report("-incoming %s: %s", incoming,
4368 error_get_pretty(local_err));
4369 error_free(local_err);
4370 exit(1);
4372 } else if (autostart) {
4373 vm_start();
4376 os_setup_post();
4378 if (is_daemonized()) {
4379 if (!trace_init_backends(trace_events, trace_file)) {
4380 exit(1);
4384 main_loop();
4385 bdrv_close_all();
4386 pause_all_vcpus();
4387 res_free();
4388 #ifdef CONFIG_TPM
4389 tpm_cleanup();
4390 #endif
4392 return 0;