tests: Use "command -v" instead of which(1) in shell scripts
[qemu/ar7.git] / vl.c
blobf1a5d66cb6b2b8b0bdc8d912b835c128ed699f26
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 /* The bytes in qemu_uuid[] are in the order specified by RFC4122, _not_ in the
194 * little-endian "wire format" described in the SMBIOS 2.6 specification.
196 uint8_t qemu_uuid[16];
197 bool qemu_uuid_set;
199 static QEMUBootSetHandler *boot_set_handler;
200 static void *boot_set_opaque;
202 static NotifierList exit_notifiers =
203 NOTIFIER_LIST_INITIALIZER(exit_notifiers);
205 static NotifierList machine_init_done_notifiers =
206 NOTIFIER_LIST_INITIALIZER(machine_init_done_notifiers);
208 bool xen_allowed;
209 uint32_t xen_domid;
210 enum xen_mode xen_mode = XEN_EMULATE;
212 static int has_defaults = 1;
213 static int default_serial = 1;
214 static int default_parallel = 1;
215 static int default_virtcon = 1;
216 static int default_sclp = 1;
217 static int default_monitor = 1;
218 static int default_floppy = 1;
219 static int default_cdrom = 1;
220 static int default_sdcard = 1;
221 static int default_vga = 1;
223 static struct {
224 const char *driver;
225 int *flag;
226 } default_list[] = {
227 { .driver = "isa-serial", .flag = &default_serial },
228 { .driver = "isa-parallel", .flag = &default_parallel },
229 { .driver = "isa-fdc", .flag = &default_floppy },
230 { .driver = "ide-cd", .flag = &default_cdrom },
231 { .driver = "ide-hd", .flag = &default_cdrom },
232 { .driver = "ide-drive", .flag = &default_cdrom },
233 { .driver = "scsi-cd", .flag = &default_cdrom },
234 { .driver = "virtio-serial-pci", .flag = &default_virtcon },
235 { .driver = "virtio-serial-s390", .flag = &default_virtcon },
236 { .driver = "virtio-serial", .flag = &default_virtcon },
237 { .driver = "VGA", .flag = &default_vga },
238 { .driver = "isa-vga", .flag = &default_vga },
239 { .driver = "cirrus-vga", .flag = &default_vga },
240 { .driver = "isa-cirrus-vga", .flag = &default_vga },
241 { .driver = "vmware-svga", .flag = &default_vga },
242 { .driver = "qxl-vga", .flag = &default_vga },
245 static QemuOptsList qemu_rtc_opts = {
246 .name = "rtc",
247 .head = QTAILQ_HEAD_INITIALIZER(qemu_rtc_opts.head),
248 .desc = {
250 .name = "base",
251 .type = QEMU_OPT_STRING,
253 .name = "clock",
254 .type = QEMU_OPT_STRING,
256 .name = "driftfix",
257 .type = QEMU_OPT_STRING,
259 { /* end of list */ }
263 static QemuOptsList qemu_sandbox_opts = {
264 .name = "sandbox",
265 .implied_opt_name = "enable",
266 .head = QTAILQ_HEAD_INITIALIZER(qemu_sandbox_opts.head),
267 .desc = {
269 .name = "enable",
270 .type = QEMU_OPT_BOOL,
272 { /* end of list */ }
276 static QemuOptsList qemu_trace_opts = {
277 .name = "trace",
278 .implied_opt_name = "trace",
279 .head = QTAILQ_HEAD_INITIALIZER(qemu_trace_opts.head),
280 .desc = {
282 .name = "events",
283 .type = QEMU_OPT_STRING,
285 .name = "file",
286 .type = QEMU_OPT_STRING,
288 { /* end of list */ }
292 static QemuOptsList qemu_option_rom_opts = {
293 .name = "option-rom",
294 .implied_opt_name = "romfile",
295 .head = QTAILQ_HEAD_INITIALIZER(qemu_option_rom_opts.head),
296 .desc = {
298 .name = "bootindex",
299 .type = QEMU_OPT_NUMBER,
300 }, {
301 .name = "romfile",
302 .type = QEMU_OPT_STRING,
304 { /* end of list */ }
308 static QemuOptsList qemu_machine_opts = {
309 .name = "machine",
310 .implied_opt_name = "type",
311 .merge_lists = true,
312 .head = QTAILQ_HEAD_INITIALIZER(qemu_machine_opts.head),
313 .desc = {
315 .name = "type",
316 .type = QEMU_OPT_STRING,
317 .help = "emulated machine"
318 }, {
319 .name = "accel",
320 .type = QEMU_OPT_STRING,
321 .help = "accelerator list",
322 }, {
323 .name = "kernel_irqchip",
324 .type = QEMU_OPT_BOOL,
325 .help = "use KVM in-kernel irqchip",
326 }, {
327 .name = "kvm_shadow_mem",
328 .type = QEMU_OPT_SIZE,
329 .help = "KVM shadow MMU size",
330 }, {
331 .name = "kernel",
332 .type = QEMU_OPT_STRING,
333 .help = "Linux kernel image file",
334 }, {
335 .name = "initrd",
336 .type = QEMU_OPT_STRING,
337 .help = "Linux initial ramdisk file",
338 }, {
339 .name = "append",
340 .type = QEMU_OPT_STRING,
341 .help = "Linux kernel command line",
342 }, {
343 .name = "dtb",
344 .type = QEMU_OPT_STRING,
345 .help = "Linux kernel device tree file",
346 }, {
347 .name = "dumpdtb",
348 .type = QEMU_OPT_STRING,
349 .help = "Dump current dtb to a file and quit",
350 }, {
351 .name = "phandle_start",
352 .type = QEMU_OPT_NUMBER,
353 .help = "The first phandle ID we may generate dynamically",
354 }, {
355 .name = "dt_compatible",
356 .type = QEMU_OPT_STRING,
357 .help = "Overrides the \"compatible\" property of the dt root node",
358 }, {
359 .name = "dump-guest-core",
360 .type = QEMU_OPT_BOOL,
361 .help = "Include guest memory in a core dump",
362 }, {
363 .name = "mem-merge",
364 .type = QEMU_OPT_BOOL,
365 .help = "enable/disable memory merge support",
367 .name = "usb",
368 .type = QEMU_OPT_BOOL,
369 .help = "Set on/off to enable/disable usb",
371 .name = "firmware",
372 .type = QEMU_OPT_STRING,
373 .help = "firmware image",
375 .name = "kvm-type",
376 .type = QEMU_OPT_STRING,
377 .help = "Specifies the KVM virtualization mode (HV, PR)",
379 .name = PC_MACHINE_MAX_RAM_BELOW_4G,
380 .type = QEMU_OPT_SIZE,
381 .help = "maximum ram below the 4G boundary (32bit boundary)",
382 }, {
383 .name = PC_MACHINE_VMPORT,
384 .type = QEMU_OPT_STRING,
385 .help = "Enable vmport (pc & q35)",
387 .name = "iommu",
388 .type = QEMU_OPT_BOOL,
389 .help = "Set on/off to enable/disable Intel IOMMU (VT-d)",
391 { /* End of list */ }
395 static QemuOptsList qemu_boot_opts = {
396 .name = "boot-opts",
397 .implied_opt_name = "order",
398 .merge_lists = true,
399 .head = QTAILQ_HEAD_INITIALIZER(qemu_boot_opts.head),
400 .desc = {
402 .name = "order",
403 .type = QEMU_OPT_STRING,
404 }, {
405 .name = "once",
406 .type = QEMU_OPT_STRING,
407 }, {
408 .name = "menu",
409 .type = QEMU_OPT_BOOL,
410 }, {
411 .name = "splash",
412 .type = QEMU_OPT_STRING,
413 }, {
414 .name = "splash-time",
415 .type = QEMU_OPT_STRING,
416 }, {
417 .name = "reboot-timeout",
418 .type = QEMU_OPT_STRING,
419 }, {
420 .name = "strict",
421 .type = QEMU_OPT_BOOL,
423 { /*End of list */ }
427 static QemuOptsList qemu_add_fd_opts = {
428 .name = "add-fd",
429 .head = QTAILQ_HEAD_INITIALIZER(qemu_add_fd_opts.head),
430 .desc = {
432 .name = "fd",
433 .type = QEMU_OPT_NUMBER,
434 .help = "file descriptor of which a duplicate is added to fd set",
436 .name = "set",
437 .type = QEMU_OPT_NUMBER,
438 .help = "ID of the fd set to add fd to",
440 .name = "opaque",
441 .type = QEMU_OPT_STRING,
442 .help = "free-form string used to describe fd",
444 { /* end of list */ }
448 static QemuOptsList qemu_object_opts = {
449 .name = "object",
450 .implied_opt_name = "qom-type",
451 .head = QTAILQ_HEAD_INITIALIZER(qemu_object_opts.head),
452 .desc = {
457 static QemuOptsList qemu_tpmdev_opts = {
458 .name = "tpmdev",
459 .implied_opt_name = "type",
460 .head = QTAILQ_HEAD_INITIALIZER(qemu_tpmdev_opts.head),
461 .desc = {
462 /* options are defined in the TPM backends */
463 { /* end of list */ }
467 static QemuOptsList qemu_realtime_opts = {
468 .name = "realtime",
469 .head = QTAILQ_HEAD_INITIALIZER(qemu_realtime_opts.head),
470 .desc = {
472 .name = "mlock",
473 .type = QEMU_OPT_BOOL,
475 { /* end of list */ }
479 static QemuOptsList qemu_msg_opts = {
480 .name = "msg",
481 .head = QTAILQ_HEAD_INITIALIZER(qemu_msg_opts.head),
482 .desc = {
484 .name = "timestamp",
485 .type = QEMU_OPT_BOOL,
487 { /* end of list */ }
491 static QemuOptsList qemu_name_opts = {
492 .name = "name",
493 .implied_opt_name = "guest",
494 .merge_lists = true,
495 .head = QTAILQ_HEAD_INITIALIZER(qemu_name_opts.head),
496 .desc = {
498 .name = "guest",
499 .type = QEMU_OPT_STRING,
500 .help = "Sets the name of the guest.\n"
501 "This name will be displayed in the SDL window caption.\n"
502 "The name will also be used for the VNC server",
503 }, {
504 .name = "process",
505 .type = QEMU_OPT_STRING,
506 .help = "Sets the name of the QEMU process, as shown in top etc",
507 }, {
508 .name = "debug-threads",
509 .type = QEMU_OPT_BOOL,
510 .help = "When enabled, name the individual threads; defaults off.\n"
511 "NOTE: The thread names are for debugging and not a\n"
512 "stable API.",
514 { /* End of list */ }
518 static QemuOptsList qemu_mem_opts = {
519 .name = "memory",
520 .implied_opt_name = "size",
521 .head = QTAILQ_HEAD_INITIALIZER(qemu_mem_opts.head),
522 .merge_lists = true,
523 .desc = {
525 .name = "size",
526 .type = QEMU_OPT_SIZE,
529 .name = "slots",
530 .type = QEMU_OPT_NUMBER,
533 .name = "maxmem",
534 .type = QEMU_OPT_SIZE,
536 { /* end of list */ }
540 static QemuOptsList qemu_icount_opts = {
541 .name = "icount",
542 .implied_opt_name = "shift",
543 .merge_lists = true,
544 .head = QTAILQ_HEAD_INITIALIZER(qemu_icount_opts.head),
545 .desc = {
547 .name = "shift",
548 .type = QEMU_OPT_STRING,
549 }, {
550 .name = "align",
551 .type = QEMU_OPT_BOOL,
553 { /* end of list */ }
558 * Get machine options
560 * Returns: machine options (never null).
562 QemuOpts *qemu_get_machine_opts(void)
564 return qemu_find_opts_singleton("machine");
567 const char *qemu_get_vm_name(void)
569 return qemu_name;
572 static void res_free(void)
574 if (boot_splash_filedata != NULL) {
575 g_free(boot_splash_filedata);
576 boot_splash_filedata = NULL;
580 static int default_driver_check(QemuOpts *opts, void *opaque)
582 const char *driver = qemu_opt_get(opts, "driver");
583 int i;
585 if (!driver)
586 return 0;
587 for (i = 0; i < ARRAY_SIZE(default_list); i++) {
588 if (strcmp(default_list[i].driver, driver) != 0)
589 continue;
590 *(default_list[i].flag) = 0;
592 return 0;
595 /***********************************************************/
596 /* QEMU state */
598 static RunState current_run_state = RUN_STATE_PRELAUNCH;
600 /* We use RUN_STATE_MAX but any invalid value will do */
601 static RunState vmstop_requested = RUN_STATE_MAX;
602 static QemuMutex vmstop_lock;
604 typedef struct {
605 RunState from;
606 RunState to;
607 } RunStateTransition;
609 static const RunStateTransition runstate_transitions_def[] = {
610 /* from -> to */
611 { RUN_STATE_DEBUG, RUN_STATE_RUNNING },
612 { RUN_STATE_DEBUG, RUN_STATE_FINISH_MIGRATE },
614 { RUN_STATE_INMIGRATE, RUN_STATE_RUNNING },
615 { RUN_STATE_INMIGRATE, RUN_STATE_PAUSED },
617 { RUN_STATE_INTERNAL_ERROR, RUN_STATE_PAUSED },
618 { RUN_STATE_INTERNAL_ERROR, RUN_STATE_FINISH_MIGRATE },
620 { RUN_STATE_IO_ERROR, RUN_STATE_RUNNING },
621 { RUN_STATE_IO_ERROR, RUN_STATE_FINISH_MIGRATE },
623 { RUN_STATE_PAUSED, RUN_STATE_RUNNING },
624 { RUN_STATE_PAUSED, RUN_STATE_FINISH_MIGRATE },
626 { RUN_STATE_POSTMIGRATE, RUN_STATE_RUNNING },
627 { RUN_STATE_POSTMIGRATE, RUN_STATE_FINISH_MIGRATE },
629 { RUN_STATE_PRELAUNCH, RUN_STATE_RUNNING },
630 { RUN_STATE_PRELAUNCH, RUN_STATE_FINISH_MIGRATE },
631 { RUN_STATE_PRELAUNCH, RUN_STATE_INMIGRATE },
633 { RUN_STATE_FINISH_MIGRATE, RUN_STATE_RUNNING },
634 { RUN_STATE_FINISH_MIGRATE, RUN_STATE_POSTMIGRATE },
636 { RUN_STATE_RESTORE_VM, RUN_STATE_RUNNING },
638 { RUN_STATE_RUNNING, RUN_STATE_DEBUG },
639 { RUN_STATE_RUNNING, RUN_STATE_INTERNAL_ERROR },
640 { RUN_STATE_RUNNING, RUN_STATE_IO_ERROR },
641 { RUN_STATE_RUNNING, RUN_STATE_PAUSED },
642 { RUN_STATE_RUNNING, RUN_STATE_FINISH_MIGRATE },
643 { RUN_STATE_RUNNING, RUN_STATE_RESTORE_VM },
644 { RUN_STATE_RUNNING, RUN_STATE_SAVE_VM },
645 { RUN_STATE_RUNNING, RUN_STATE_SHUTDOWN },
646 { RUN_STATE_RUNNING, RUN_STATE_WATCHDOG },
647 { RUN_STATE_RUNNING, RUN_STATE_GUEST_PANICKED },
649 { RUN_STATE_SAVE_VM, RUN_STATE_RUNNING },
651 { RUN_STATE_SHUTDOWN, RUN_STATE_PAUSED },
652 { RUN_STATE_SHUTDOWN, RUN_STATE_FINISH_MIGRATE },
654 { RUN_STATE_DEBUG, RUN_STATE_SUSPENDED },
655 { RUN_STATE_RUNNING, RUN_STATE_SUSPENDED },
656 { RUN_STATE_SUSPENDED, RUN_STATE_RUNNING },
657 { RUN_STATE_SUSPENDED, RUN_STATE_FINISH_MIGRATE },
659 { RUN_STATE_WATCHDOG, RUN_STATE_RUNNING },
660 { RUN_STATE_WATCHDOG, RUN_STATE_FINISH_MIGRATE },
662 { RUN_STATE_GUEST_PANICKED, RUN_STATE_RUNNING },
663 { RUN_STATE_GUEST_PANICKED, RUN_STATE_FINISH_MIGRATE },
665 { RUN_STATE_MAX, RUN_STATE_MAX },
668 static bool runstate_valid_transitions[RUN_STATE_MAX][RUN_STATE_MAX];
670 bool runstate_check(RunState state)
672 return current_run_state == state;
675 static void runstate_init(void)
677 const RunStateTransition *p;
679 memset(&runstate_valid_transitions, 0, sizeof(runstate_valid_transitions));
680 for (p = &runstate_transitions_def[0]; p->from != RUN_STATE_MAX; p++) {
681 runstate_valid_transitions[p->from][p->to] = true;
684 qemu_mutex_init(&vmstop_lock);
687 /* This function will abort() on invalid state transitions */
688 void runstate_set(RunState new_state)
690 assert(new_state < RUN_STATE_MAX);
692 if (!runstate_valid_transitions[current_run_state][new_state]) {
693 fprintf(stderr, "ERROR: invalid runstate transition: '%s' -> '%s'\n",
694 RunState_lookup[current_run_state],
695 RunState_lookup[new_state]);
696 abort();
698 trace_runstate_set(new_state);
699 current_run_state = new_state;
702 int runstate_is_running(void)
704 return runstate_check(RUN_STATE_RUNNING);
707 bool runstate_needs_reset(void)
709 return runstate_check(RUN_STATE_INTERNAL_ERROR) ||
710 runstate_check(RUN_STATE_SHUTDOWN);
713 StatusInfo *qmp_query_status(Error **errp)
715 StatusInfo *info = g_malloc0(sizeof(*info));
717 info->running = runstate_is_running();
718 info->singlestep = singlestep;
719 info->status = current_run_state;
721 return info;
724 static bool qemu_vmstop_requested(RunState *r)
726 qemu_mutex_lock(&vmstop_lock);
727 *r = vmstop_requested;
728 vmstop_requested = RUN_STATE_MAX;
729 qemu_mutex_unlock(&vmstop_lock);
730 return *r < RUN_STATE_MAX;
733 void qemu_system_vmstop_request_prepare(void)
735 qemu_mutex_lock(&vmstop_lock);
738 void qemu_system_vmstop_request(RunState state)
740 vmstop_requested = state;
741 qemu_mutex_unlock(&vmstop_lock);
742 qemu_notify_event();
745 void vm_start(void)
747 RunState requested;
749 qemu_vmstop_requested(&requested);
750 if (runstate_is_running() && requested == RUN_STATE_MAX) {
751 return;
754 /* Ensure that a STOP/RESUME pair of events is emitted if a
755 * vmstop request was pending. The BLOCK_IO_ERROR event, for
756 * example, according to documentation is always followed by
757 * the STOP event.
759 if (runstate_is_running()) {
760 qapi_event_send_stop(&error_abort);
761 } else {
762 cpu_enable_ticks();
763 runstate_set(RUN_STATE_RUNNING);
764 vm_state_notify(1, RUN_STATE_RUNNING);
765 resume_all_vcpus();
768 qapi_event_send_resume(&error_abort);
772 /***********************************************************/
773 /* real time host monotonic timer */
775 /***********************************************************/
776 /* host time/date access */
777 void qemu_get_timedate(struct tm *tm, int offset)
779 time_t ti;
781 time(&ti);
782 ti += offset;
783 if (rtc_date_offset == -1) {
784 if (rtc_utc)
785 gmtime_r(&ti, tm);
786 else
787 localtime_r(&ti, tm);
788 } else {
789 ti -= rtc_date_offset;
790 gmtime_r(&ti, tm);
794 int qemu_timedate_diff(struct tm *tm)
796 time_t seconds;
798 if (rtc_date_offset == -1)
799 if (rtc_utc)
800 seconds = mktimegm(tm);
801 else {
802 struct tm tmp = *tm;
803 tmp.tm_isdst = -1; /* use timezone to figure it out */
804 seconds = mktime(&tmp);
806 else
807 seconds = mktimegm(tm) + rtc_date_offset;
809 return seconds - time(NULL);
812 static void configure_rtc_date_offset(const char *startdate, int legacy)
814 time_t rtc_start_date;
815 struct tm tm;
817 if (!strcmp(startdate, "now") && legacy) {
818 rtc_date_offset = -1;
819 } else {
820 if (sscanf(startdate, "%d-%d-%dT%d:%d:%d",
821 &tm.tm_year,
822 &tm.tm_mon,
823 &tm.tm_mday,
824 &tm.tm_hour,
825 &tm.tm_min,
826 &tm.tm_sec) == 6) {
827 /* OK */
828 } else if (sscanf(startdate, "%d-%d-%d",
829 &tm.tm_year,
830 &tm.tm_mon,
831 &tm.tm_mday) == 3) {
832 tm.tm_hour = 0;
833 tm.tm_min = 0;
834 tm.tm_sec = 0;
835 } else {
836 goto date_fail;
838 tm.tm_year -= 1900;
839 tm.tm_mon--;
840 rtc_start_date = mktimegm(&tm);
841 if (rtc_start_date == -1) {
842 date_fail:
843 fprintf(stderr, "Invalid date format. Valid formats are:\n"
844 "'2006-06-17T16:01:21' or '2006-06-17'\n");
845 exit(1);
847 rtc_date_offset = time(NULL) - rtc_start_date;
851 static void configure_rtc(QemuOpts *opts)
853 const char *value;
855 value = qemu_opt_get(opts, "base");
856 if (value) {
857 if (!strcmp(value, "utc")) {
858 rtc_utc = 1;
859 } else if (!strcmp(value, "localtime")) {
860 rtc_utc = 0;
861 } else {
862 configure_rtc_date_offset(value, 0);
865 value = qemu_opt_get(opts, "clock");
866 if (value) {
867 if (!strcmp(value, "host")) {
868 rtc_clock = QEMU_CLOCK_HOST;
869 } else if (!strcmp(value, "rt")) {
870 rtc_clock = QEMU_CLOCK_REALTIME;
871 } else if (!strcmp(value, "vm")) {
872 rtc_clock = QEMU_CLOCK_VIRTUAL;
873 } else {
874 fprintf(stderr, "qemu: invalid option value '%s'\n", value);
875 exit(1);
878 value = qemu_opt_get(opts, "driftfix");
879 if (value) {
880 if (!strcmp(value, "slew")) {
881 static GlobalProperty slew_lost_ticks[] = {
883 .driver = "mc146818rtc",
884 .property = "lost_tick_policy",
885 .value = "slew",
887 { /* end of list */ }
890 qdev_prop_register_global_list(slew_lost_ticks);
891 } else if (!strcmp(value, "none")) {
892 /* discard is default */
893 } else {
894 fprintf(stderr, "qemu: invalid option value '%s'\n", value);
895 exit(1);
900 /***********************************************************/
901 /* Bluetooth support */
902 static int nb_hcis;
903 static int cur_hci;
904 static struct HCIInfo *hci_table[MAX_NICS];
906 struct HCIInfo *qemu_next_hci(void)
908 if (cur_hci == nb_hcis)
909 return &null_hci;
911 return hci_table[cur_hci++];
914 static int bt_hci_parse(const char *str)
916 struct HCIInfo *hci;
917 bdaddr_t bdaddr;
919 if (nb_hcis >= MAX_NICS) {
920 fprintf(stderr, "qemu: Too many bluetooth HCIs (max %i).\n", MAX_NICS);
921 return -1;
924 hci = hci_init(str);
925 if (!hci)
926 return -1;
928 bdaddr.b[0] = 0x52;
929 bdaddr.b[1] = 0x54;
930 bdaddr.b[2] = 0x00;
931 bdaddr.b[3] = 0x12;
932 bdaddr.b[4] = 0x34;
933 bdaddr.b[5] = 0x56 + nb_hcis;
934 hci->bdaddr_set(hci, bdaddr.b);
936 hci_table[nb_hcis++] = hci;
938 return 0;
941 static void bt_vhci_add(int vlan_id)
943 struct bt_scatternet_s *vlan = qemu_find_bt_vlan(vlan_id);
945 if (!vlan->slave)
946 fprintf(stderr, "qemu: warning: adding a VHCI to "
947 "an empty scatternet %i\n", vlan_id);
949 bt_vhci_init(bt_new_hci(vlan));
952 static struct bt_device_s *bt_device_add(const char *opt)
954 struct bt_scatternet_s *vlan;
955 int vlan_id = 0;
956 char *endp = strstr(opt, ",vlan=");
957 int len = (endp ? endp - opt : strlen(opt)) + 1;
958 char devname[10];
960 pstrcpy(devname, MIN(sizeof(devname), len), opt);
962 if (endp) {
963 vlan_id = strtol(endp + 6, &endp, 0);
964 if (*endp) {
965 fprintf(stderr, "qemu: unrecognised bluetooth vlan Id\n");
966 return 0;
970 vlan = qemu_find_bt_vlan(vlan_id);
972 if (!vlan->slave)
973 fprintf(stderr, "qemu: warning: adding a slave device to "
974 "an empty scatternet %i\n", vlan_id);
976 if (!strcmp(devname, "keyboard"))
977 return bt_keyboard_init(vlan);
979 fprintf(stderr, "qemu: unsupported bluetooth device `%s'\n", devname);
980 return 0;
983 static int bt_parse(const char *opt)
985 const char *endp, *p;
986 int vlan;
988 if (strstart(opt, "hci", &endp)) {
989 if (!*endp || *endp == ',') {
990 if (*endp)
991 if (!strstart(endp, ",vlan=", 0))
992 opt = endp + 1;
994 return bt_hci_parse(opt);
996 } else if (strstart(opt, "vhci", &endp)) {
997 if (!*endp || *endp == ',') {
998 if (*endp) {
999 if (strstart(endp, ",vlan=", &p)) {
1000 vlan = strtol(p, (char **) &endp, 0);
1001 if (*endp) {
1002 fprintf(stderr, "qemu: bad scatternet '%s'\n", p);
1003 return 1;
1005 } else {
1006 fprintf(stderr, "qemu: bad parameter '%s'\n", endp + 1);
1007 return 1;
1009 } else
1010 vlan = 0;
1012 bt_vhci_add(vlan);
1013 return 0;
1015 } else if (strstart(opt, "device:", &endp))
1016 return !bt_device_add(endp);
1018 fprintf(stderr, "qemu: bad bluetooth parameter '%s'\n", opt);
1019 return 1;
1022 static int parse_sandbox(QemuOpts *opts, void *opaque)
1024 /* FIXME: change this to true for 1.3 */
1025 if (qemu_opt_get_bool(opts, "enable", false)) {
1026 #ifdef CONFIG_SECCOMP
1027 if (seccomp_start() < 0) {
1028 qerror_report(ERROR_CLASS_GENERIC_ERROR,
1029 "failed to install seccomp syscall filter in the kernel");
1030 return -1;
1032 #else
1033 qerror_report(ERROR_CLASS_GENERIC_ERROR,
1034 "sandboxing request but seccomp is not compiled into this build");
1035 return -1;
1036 #endif
1039 return 0;
1042 static int parse_name(QemuOpts *opts, void *opaque)
1044 const char *proc_name;
1046 if (qemu_opt_get(opts, "debug-threads")) {
1047 qemu_thread_naming(qemu_opt_get_bool(opts, "debug-threads", false));
1049 qemu_name = qemu_opt_get(opts, "guest");
1051 proc_name = qemu_opt_get(opts, "process");
1052 if (proc_name) {
1053 os_set_proc_name(proc_name);
1056 return 0;
1059 bool usb_enabled(bool default_usb)
1061 return qemu_opt_get_bool(qemu_get_machine_opts(), "usb",
1062 has_defaults && default_usb);
1065 #ifndef _WIN32
1066 static int parse_add_fd(QemuOpts *opts, void *opaque)
1068 int fd, dupfd, flags;
1069 int64_t fdset_id;
1070 const char *fd_opaque = NULL;
1072 fd = qemu_opt_get_number(opts, "fd", -1);
1073 fdset_id = qemu_opt_get_number(opts, "set", -1);
1074 fd_opaque = qemu_opt_get(opts, "opaque");
1076 if (fd < 0) {
1077 qerror_report(ERROR_CLASS_GENERIC_ERROR,
1078 "fd option is required and must be non-negative");
1079 return -1;
1082 if (fd <= STDERR_FILENO) {
1083 qerror_report(ERROR_CLASS_GENERIC_ERROR,
1084 "fd cannot be a standard I/O stream");
1085 return -1;
1089 * All fds inherited across exec() necessarily have FD_CLOEXEC
1090 * clear, while qemu sets FD_CLOEXEC on all other fds used internally.
1092 flags = fcntl(fd, F_GETFD);
1093 if (flags == -1 || (flags & FD_CLOEXEC)) {
1094 qerror_report(ERROR_CLASS_GENERIC_ERROR,
1095 "fd is not valid or already in use");
1096 return -1;
1099 if (fdset_id < 0) {
1100 qerror_report(ERROR_CLASS_GENERIC_ERROR,
1101 "set option is required and must be non-negative");
1102 return -1;
1105 #ifdef F_DUPFD_CLOEXEC
1106 dupfd = fcntl(fd, F_DUPFD_CLOEXEC, 0);
1107 #else
1108 dupfd = dup(fd);
1109 if (dupfd != -1) {
1110 qemu_set_cloexec(dupfd);
1112 #endif
1113 if (dupfd == -1) {
1114 qerror_report(ERROR_CLASS_GENERIC_ERROR,
1115 "Error duplicating fd: %s", strerror(errno));
1116 return -1;
1119 /* add the duplicate fd, and optionally the opaque string, to the fd set */
1120 monitor_fdset_add_fd(dupfd, true, fdset_id, fd_opaque ? true : false,
1121 fd_opaque, NULL);
1123 return 0;
1126 static int cleanup_add_fd(QemuOpts *opts, void *opaque)
1128 int fd;
1130 fd = qemu_opt_get_number(opts, "fd", -1);
1131 close(fd);
1133 return 0;
1135 #endif
1137 /***********************************************************/
1138 /* QEMU Block devices */
1140 #define HD_OPTS "media=disk"
1141 #define CDROM_OPTS "media=cdrom"
1142 #define FD_OPTS ""
1143 #define PFLASH_OPTS ""
1144 #define MTD_OPTS ""
1145 #define SD_OPTS ""
1147 static int drive_init_func(QemuOpts *opts, void *opaque)
1149 BlockInterfaceType *block_default_type = opaque;
1151 return drive_new(opts, *block_default_type) == NULL;
1154 static int drive_enable_snapshot(QemuOpts *opts, void *opaque)
1156 if (qemu_opt_get(opts, "snapshot") == NULL) {
1157 qemu_opt_set(opts, "snapshot", "on");
1159 return 0;
1162 static void default_drive(int enable, int snapshot, BlockInterfaceType type,
1163 int index, const char *optstr)
1165 QemuOpts *opts;
1166 DriveInfo *dinfo;
1168 if (!enable || drive_get_by_index(type, index)) {
1169 return;
1172 opts = drive_add(type, index, NULL, optstr);
1173 if (snapshot) {
1174 drive_enable_snapshot(opts, NULL);
1177 dinfo = drive_new(opts, type);
1178 if (!dinfo) {
1179 exit(1);
1181 dinfo->is_default = true;
1185 void qemu_register_boot_set(QEMUBootSetHandler *func, void *opaque)
1187 boot_set_handler = func;
1188 boot_set_opaque = opaque;
1191 int qemu_boot_set(const char *boot_order)
1193 if (!boot_set_handler) {
1194 return -EINVAL;
1196 return boot_set_handler(boot_set_opaque, boot_order);
1199 static void validate_bootdevices(const char *devices)
1201 /* We just do some generic consistency checks */
1202 const char *p;
1203 int bitmap = 0;
1205 for (p = devices; *p != '\0'; p++) {
1206 /* Allowed boot devices are:
1207 * a-b: floppy disk drives
1208 * c-f: IDE disk drives
1209 * g-m: machine implementation dependent drives
1210 * n-p: network devices
1211 * It's up to each machine implementation to check if the given boot
1212 * devices match the actual hardware implementation and firmware
1213 * features.
1215 if (*p < 'a' || *p > 'p') {
1216 fprintf(stderr, "Invalid boot device '%c'\n", *p);
1217 exit(1);
1219 if (bitmap & (1 << (*p - 'a'))) {
1220 fprintf(stderr, "Boot device '%c' was given twice\n", *p);
1221 exit(1);
1223 bitmap |= 1 << (*p - 'a');
1227 static void restore_boot_order(void *opaque)
1229 char *normal_boot_order = opaque;
1230 static int first = 1;
1232 /* Restore boot order and remove ourselves after the first boot */
1233 if (first) {
1234 first = 0;
1235 return;
1238 qemu_boot_set(normal_boot_order);
1240 qemu_unregister_reset(restore_boot_order, normal_boot_order);
1241 g_free(normal_boot_order);
1244 static QemuOptsList qemu_smp_opts = {
1245 .name = "smp-opts",
1246 .implied_opt_name = "cpus",
1247 .merge_lists = true,
1248 .head = QTAILQ_HEAD_INITIALIZER(qemu_smp_opts.head),
1249 .desc = {
1251 .name = "cpus",
1252 .type = QEMU_OPT_NUMBER,
1253 }, {
1254 .name = "sockets",
1255 .type = QEMU_OPT_NUMBER,
1256 }, {
1257 .name = "cores",
1258 .type = QEMU_OPT_NUMBER,
1259 }, {
1260 .name = "threads",
1261 .type = QEMU_OPT_NUMBER,
1262 }, {
1263 .name = "maxcpus",
1264 .type = QEMU_OPT_NUMBER,
1266 { /*End of list */ }
1270 static void smp_parse(QemuOpts *opts)
1272 if (opts) {
1274 unsigned cpus = qemu_opt_get_number(opts, "cpus", 0);
1275 unsigned sockets = qemu_opt_get_number(opts, "sockets", 0);
1276 unsigned cores = qemu_opt_get_number(opts, "cores", 0);
1277 unsigned threads = qemu_opt_get_number(opts, "threads", 0);
1279 /* compute missing values, prefer sockets over cores over threads */
1280 if (cpus == 0 || sockets == 0) {
1281 sockets = sockets > 0 ? sockets : 1;
1282 cores = cores > 0 ? cores : 1;
1283 threads = threads > 0 ? threads : 1;
1284 if (cpus == 0) {
1285 cpus = cores * threads * sockets;
1287 } else {
1288 if (cores == 0) {
1289 threads = threads > 0 ? threads : 1;
1290 cores = cpus / (sockets * threads);
1291 } else {
1292 threads = cpus / (cores * sockets);
1296 max_cpus = qemu_opt_get_number(opts, "maxcpus", 0);
1298 smp_cpus = cpus;
1299 smp_cores = cores > 0 ? cores : 1;
1300 smp_threads = threads > 0 ? threads : 1;
1304 if (max_cpus == 0) {
1305 max_cpus = smp_cpus;
1308 if (max_cpus > MAX_CPUMASK_BITS) {
1309 fprintf(stderr, "Unsupported number of maxcpus\n");
1310 exit(1);
1312 if (max_cpus < smp_cpus) {
1313 fprintf(stderr, "maxcpus must be equal to or greater than smp\n");
1314 exit(1);
1319 static void realtime_init(void)
1321 if (enable_mlock) {
1322 if (os_mlock() < 0) {
1323 fprintf(stderr, "qemu: locking memory failed\n");
1324 exit(1);
1330 static void configure_msg(QemuOpts *opts)
1332 enable_timestamp_msg = qemu_opt_get_bool(opts, "timestamp", true);
1335 /***********************************************************/
1336 /* USB devices */
1338 static int usb_device_add(const char *devname)
1340 USBDevice *dev = NULL;
1341 #ifndef CONFIG_LINUX
1342 const char *p;
1343 #endif
1345 if (!usb_enabled(false)) {
1346 return -1;
1349 /* drivers with .usbdevice_name entry in USBDeviceInfo */
1350 dev = usbdevice_create(devname);
1351 if (dev)
1352 goto done;
1354 /* the other ones */
1355 #ifndef CONFIG_LINUX
1356 /* only the linux version is qdev-ified, usb-bsd still needs this */
1357 if (strstart(devname, "host:", &p)) {
1358 dev = usb_host_device_open(usb_bus_find(-1), p);
1360 #endif
1361 if (!dev)
1362 return -1;
1364 done:
1365 return 0;
1368 static int usb_device_del(const char *devname)
1370 int bus_num, addr;
1371 const char *p;
1373 if (strstart(devname, "host:", &p)) {
1374 return -1;
1377 if (!usb_enabled(false)) {
1378 return -1;
1381 p = strchr(devname, '.');
1382 if (!p)
1383 return -1;
1384 bus_num = strtoul(devname, NULL, 0);
1385 addr = strtoul(p + 1, NULL, 0);
1387 return usb_device_delete_addr(bus_num, addr);
1390 static int usb_parse(const char *cmdline)
1392 int r;
1393 r = usb_device_add(cmdline);
1394 if (r < 0) {
1395 fprintf(stderr, "qemu: could not add USB device '%s'\n", cmdline);
1397 return r;
1400 void do_usb_add(Monitor *mon, const QDict *qdict)
1402 const char *devname = qdict_get_str(qdict, "devname");
1403 if (usb_device_add(devname) < 0) {
1404 error_report("could not add USB device '%s'", devname);
1408 void do_usb_del(Monitor *mon, const QDict *qdict)
1410 const char *devname = qdict_get_str(qdict, "devname");
1411 if (usb_device_del(devname) < 0) {
1412 error_report("could not delete USB device '%s'", devname);
1416 /***********************************************************/
1417 /* machine registration */
1419 MachineState *current_machine;
1421 static void machine_class_init(ObjectClass *oc, void *data)
1423 MachineClass *mc = MACHINE_CLASS(oc);
1424 QEMUMachine *qm = data;
1426 mc->family = qm->family;
1427 mc->name = qm->name;
1428 mc->alias = qm->alias;
1429 mc->desc = qm->desc;
1430 mc->init = qm->init;
1431 mc->reset = qm->reset;
1432 mc->hot_add_cpu = qm->hot_add_cpu;
1433 mc->kvm_type = qm->kvm_type;
1434 mc->block_default_type = qm->block_default_type;
1435 mc->units_per_default_bus = qm->units_per_default_bus;
1436 mc->max_cpus = qm->max_cpus;
1437 mc->no_serial = qm->no_serial;
1438 mc->no_parallel = qm->no_parallel;
1439 mc->use_virtcon = qm->use_virtcon;
1440 mc->use_sclp = qm->use_sclp;
1441 mc->no_floppy = qm->no_floppy;
1442 mc->no_cdrom = qm->no_cdrom;
1443 mc->no_sdcard = qm->no_sdcard;
1444 mc->has_dynamic_sysbus = qm->has_dynamic_sysbus;
1445 mc->is_default = qm->is_default;
1446 mc->default_machine_opts = qm->default_machine_opts;
1447 mc->default_boot_order = qm->default_boot_order;
1448 mc->default_display = qm->default_display;
1449 mc->compat_props = qm->compat_props;
1450 mc->hw_version = qm->hw_version;
1453 int qemu_register_machine(QEMUMachine *m)
1455 char *name = g_strconcat(m->name, TYPE_MACHINE_SUFFIX, NULL);
1456 TypeInfo ti = {
1457 .name = name,
1458 .parent = TYPE_MACHINE,
1459 .class_init = machine_class_init,
1460 .class_data = (void *)m,
1463 type_register(&ti);
1464 g_free(name);
1466 return 0;
1469 static MachineClass *find_machine(const char *name)
1471 GSList *el, *machines = object_class_get_list(TYPE_MACHINE, false);
1472 MachineClass *mc = NULL;
1474 for (el = machines; el; el = el->next) {
1475 MachineClass *temp = el->data;
1477 if (!strcmp(temp->name, name)) {
1478 mc = temp;
1479 break;
1481 if (temp->alias &&
1482 !strcmp(temp->alias, name)) {
1483 mc = temp;
1484 break;
1488 g_slist_free(machines);
1489 return mc;
1492 MachineClass *find_default_machine(void)
1494 GSList *el, *machines = object_class_get_list(TYPE_MACHINE, false);
1495 MachineClass *mc = NULL;
1497 for (el = machines; el; el = el->next) {
1498 MachineClass *temp = el->data;
1500 if (temp->is_default) {
1501 mc = temp;
1502 break;
1506 g_slist_free(machines);
1507 return mc;
1510 MachineInfoList *qmp_query_machines(Error **errp)
1512 GSList *el, *machines = object_class_get_list(TYPE_MACHINE, false);
1513 MachineInfoList *mach_list = NULL;
1515 for (el = machines; el; el = el->next) {
1516 MachineClass *mc = el->data;
1517 MachineInfoList *entry;
1518 MachineInfo *info;
1520 info = g_malloc0(sizeof(*info));
1521 if (mc->is_default) {
1522 info->has_is_default = true;
1523 info->is_default = true;
1526 if (mc->alias) {
1527 info->has_alias = true;
1528 info->alias = g_strdup(mc->alias);
1531 info->name = g_strdup(mc->name);
1532 info->cpu_max = !mc->max_cpus ? 1 : mc->max_cpus;
1534 entry = g_malloc0(sizeof(*entry));
1535 entry->value = info;
1536 entry->next = mach_list;
1537 mach_list = entry;
1540 g_slist_free(machines);
1541 return mach_list;
1544 /***********************************************************/
1545 /* main execution loop */
1547 struct vm_change_state_entry {
1548 VMChangeStateHandler *cb;
1549 void *opaque;
1550 QLIST_ENTRY (vm_change_state_entry) entries;
1553 static QLIST_HEAD(vm_change_state_head, vm_change_state_entry) vm_change_state_head;
1555 VMChangeStateEntry *qemu_add_vm_change_state_handler(VMChangeStateHandler *cb,
1556 void *opaque)
1558 VMChangeStateEntry *e;
1560 e = g_malloc0(sizeof (*e));
1562 e->cb = cb;
1563 e->opaque = opaque;
1564 QLIST_INSERT_HEAD(&vm_change_state_head, e, entries);
1565 return e;
1568 void qemu_del_vm_change_state_handler(VMChangeStateEntry *e)
1570 QLIST_REMOVE (e, entries);
1571 g_free (e);
1574 void vm_state_notify(int running, RunState state)
1576 VMChangeStateEntry *e, *next;
1578 trace_vm_state_notify(running, state);
1580 QLIST_FOREACH_SAFE(e, &vm_change_state_head, entries, next) {
1581 e->cb(e->opaque, running, state);
1585 /* reset/shutdown handler */
1587 typedef struct QEMUResetEntry {
1588 QTAILQ_ENTRY(QEMUResetEntry) entry;
1589 QEMUResetHandler *func;
1590 void *opaque;
1591 } QEMUResetEntry;
1593 static QTAILQ_HEAD(reset_handlers, QEMUResetEntry) reset_handlers =
1594 QTAILQ_HEAD_INITIALIZER(reset_handlers);
1595 static int reset_requested;
1596 static int shutdown_requested, shutdown_signal = -1;
1597 static pid_t shutdown_pid;
1598 static int powerdown_requested;
1599 static int debug_requested;
1600 static int suspend_requested;
1601 static WakeupReason wakeup_reason;
1602 static NotifierList powerdown_notifiers =
1603 NOTIFIER_LIST_INITIALIZER(powerdown_notifiers);
1604 static NotifierList suspend_notifiers =
1605 NOTIFIER_LIST_INITIALIZER(suspend_notifiers);
1606 static NotifierList wakeup_notifiers =
1607 NOTIFIER_LIST_INITIALIZER(wakeup_notifiers);
1608 static uint32_t wakeup_reason_mask = ~(1 << QEMU_WAKEUP_REASON_NONE);
1610 int qemu_shutdown_requested_get(void)
1612 return shutdown_requested;
1615 int qemu_reset_requested_get(void)
1617 return reset_requested;
1620 static int qemu_shutdown_requested(void)
1622 return atomic_xchg(&shutdown_requested, 0);
1625 static void qemu_kill_report(void)
1627 if (!qtest_driver() && shutdown_signal != -1) {
1628 fprintf(stderr, "qemu: terminating on signal %d", shutdown_signal);
1629 if (shutdown_pid == 0) {
1630 /* This happens for eg ^C at the terminal, so it's worth
1631 * avoiding printing an odd message in that case.
1633 fputc('\n', stderr);
1634 } else {
1635 fprintf(stderr, " from pid " FMT_pid "\n", shutdown_pid);
1637 shutdown_signal = -1;
1641 static int qemu_reset_requested(void)
1643 int r = reset_requested;
1644 reset_requested = 0;
1645 return r;
1648 static int qemu_suspend_requested(void)
1650 int r = suspend_requested;
1651 suspend_requested = 0;
1652 return r;
1655 static WakeupReason qemu_wakeup_requested(void)
1657 return wakeup_reason;
1660 static int qemu_powerdown_requested(void)
1662 int r = powerdown_requested;
1663 powerdown_requested = 0;
1664 return r;
1667 static int qemu_debug_requested(void)
1669 int r = debug_requested;
1670 debug_requested = 0;
1671 return r;
1674 void qemu_register_reset(QEMUResetHandler *func, void *opaque)
1676 QEMUResetEntry *re = g_malloc0(sizeof(QEMUResetEntry));
1678 re->func = func;
1679 re->opaque = opaque;
1680 QTAILQ_INSERT_TAIL(&reset_handlers, re, entry);
1683 void qemu_unregister_reset(QEMUResetHandler *func, void *opaque)
1685 QEMUResetEntry *re;
1687 QTAILQ_FOREACH(re, &reset_handlers, entry) {
1688 if (re->func == func && re->opaque == opaque) {
1689 QTAILQ_REMOVE(&reset_handlers, re, entry);
1690 g_free(re);
1691 return;
1696 void qemu_devices_reset(void)
1698 QEMUResetEntry *re, *nre;
1700 /* reset all devices */
1701 QTAILQ_FOREACH_SAFE(re, &reset_handlers, entry, nre) {
1702 re->func(re->opaque);
1706 void qemu_system_reset(bool report)
1708 MachineClass *mc;
1710 mc = current_machine ? MACHINE_GET_CLASS(current_machine) : NULL;
1712 if (mc && mc->reset) {
1713 mc->reset();
1714 } else {
1715 qemu_devices_reset();
1717 if (report) {
1718 qapi_event_send_reset(&error_abort);
1720 cpu_synchronize_all_post_reset();
1723 void qemu_system_reset_request(void)
1725 if (no_reboot) {
1726 shutdown_requested = 1;
1727 } else {
1728 reset_requested = 1;
1730 cpu_stop_current();
1731 qemu_notify_event();
1734 static void qemu_system_suspend(void)
1736 pause_all_vcpus();
1737 notifier_list_notify(&suspend_notifiers, NULL);
1738 runstate_set(RUN_STATE_SUSPENDED);
1739 qapi_event_send_suspend(&error_abort);
1742 void qemu_system_suspend_request(void)
1744 if (runstate_check(RUN_STATE_SUSPENDED)) {
1745 return;
1747 suspend_requested = 1;
1748 cpu_stop_current();
1749 qemu_notify_event();
1752 void qemu_register_suspend_notifier(Notifier *notifier)
1754 notifier_list_add(&suspend_notifiers, notifier);
1757 void qemu_system_wakeup_request(WakeupReason reason)
1759 trace_system_wakeup_request(reason);
1761 if (!runstate_check(RUN_STATE_SUSPENDED)) {
1762 return;
1764 if (!(wakeup_reason_mask & (1 << reason))) {
1765 return;
1767 runstate_set(RUN_STATE_RUNNING);
1768 wakeup_reason = reason;
1769 qemu_notify_event();
1772 void qemu_system_wakeup_enable(WakeupReason reason, bool enabled)
1774 if (enabled) {
1775 wakeup_reason_mask |= (1 << reason);
1776 } else {
1777 wakeup_reason_mask &= ~(1 << reason);
1781 void qemu_register_wakeup_notifier(Notifier *notifier)
1783 notifier_list_add(&wakeup_notifiers, notifier);
1786 void qemu_system_killed(int signal, pid_t pid)
1788 shutdown_signal = signal;
1789 shutdown_pid = pid;
1790 no_shutdown = 0;
1791 qemu_system_shutdown_request();
1794 void qemu_system_shutdown_request(void)
1796 trace_qemu_system_shutdown_request();
1797 shutdown_requested = 1;
1798 qemu_notify_event();
1801 static void qemu_system_powerdown(void)
1803 qapi_event_send_powerdown(&error_abort);
1804 notifier_list_notify(&powerdown_notifiers, NULL);
1807 void qemu_system_powerdown_request(void)
1809 trace_qemu_system_powerdown_request();
1810 powerdown_requested = 1;
1811 qemu_notify_event();
1814 void qemu_register_powerdown_notifier(Notifier *notifier)
1816 notifier_list_add(&powerdown_notifiers, notifier);
1819 void qemu_system_debug_request(void)
1821 debug_requested = 1;
1822 qemu_notify_event();
1825 static bool main_loop_should_exit(void)
1827 RunState r;
1828 if (qemu_debug_requested()) {
1829 vm_stop(RUN_STATE_DEBUG);
1831 if (qemu_suspend_requested()) {
1832 qemu_system_suspend();
1834 if (qemu_shutdown_requested()) {
1835 qemu_kill_report();
1836 qapi_event_send_shutdown(&error_abort);
1837 if (no_shutdown) {
1838 vm_stop(RUN_STATE_SHUTDOWN);
1839 } else {
1840 return true;
1843 if (qemu_reset_requested()) {
1844 pause_all_vcpus();
1845 cpu_synchronize_all_states();
1846 qemu_system_reset(VMRESET_REPORT);
1847 resume_all_vcpus();
1848 if (runstate_needs_reset()) {
1849 runstate_set(RUN_STATE_PAUSED);
1852 if (qemu_wakeup_requested()) {
1853 pause_all_vcpus();
1854 cpu_synchronize_all_states();
1855 qemu_system_reset(VMRESET_SILENT);
1856 notifier_list_notify(&wakeup_notifiers, &wakeup_reason);
1857 wakeup_reason = QEMU_WAKEUP_REASON_NONE;
1858 resume_all_vcpus();
1859 qapi_event_send_wakeup(&error_abort);
1861 if (qemu_powerdown_requested()) {
1862 qemu_system_powerdown();
1864 if (qemu_vmstop_requested(&r)) {
1865 vm_stop(r);
1867 return false;
1870 static void main_loop(void)
1872 bool nonblocking;
1873 int last_io = 0;
1874 #ifdef CONFIG_PROFILER
1875 int64_t ti;
1876 #endif
1877 do {
1878 nonblocking = !kvm_enabled() && !xen_enabled() && last_io > 0;
1879 #ifdef CONFIG_PROFILER
1880 ti = profile_getclock();
1881 #endif
1882 last_io = main_loop_wait(nonblocking);
1883 #ifdef CONFIG_PROFILER
1884 dev_time += profile_getclock() - ti;
1885 #endif
1886 } while (!main_loop_should_exit());
1889 static void version(void)
1891 printf("QEMU emulator version " QEMU_VERSION QEMU_PKGVERSION ", Copyright (c) 2003-2008 Fabrice Bellard\n");
1894 static void help(int exitcode)
1896 version();
1897 printf("usage: %s [options] [disk_image]\n\n"
1898 "'disk_image' is a raw hard disk image for IDE hard disk 0\n\n",
1899 error_get_progname());
1901 #define QEMU_OPTIONS_GENERATE_HELP
1902 #include "qemu-options-wrapper.h"
1904 printf("\nDuring emulation, the following keys are useful:\n"
1905 "ctrl-alt-f toggle full screen\n"
1906 "ctrl-alt-n switch to virtual console 'n'\n"
1907 "ctrl-alt toggle mouse and keyboard grab\n"
1908 "\n"
1909 "When using -nographic, press 'ctrl-a h' to get some help.\n");
1911 exit(exitcode);
1914 #define HAS_ARG 0x0001
1916 typedef struct QEMUOption {
1917 const char *name;
1918 int flags;
1919 int index;
1920 uint32_t arch_mask;
1921 } QEMUOption;
1923 static const QEMUOption qemu_options[] = {
1924 { "h", 0, QEMU_OPTION_h, QEMU_ARCH_ALL },
1925 #define QEMU_OPTIONS_GENERATE_OPTIONS
1926 #include "qemu-options-wrapper.h"
1927 { NULL },
1930 static bool vga_available(void)
1932 return object_class_by_name("VGA") || object_class_by_name("isa-vga");
1935 static bool cirrus_vga_available(void)
1937 return object_class_by_name("cirrus-vga")
1938 || object_class_by_name("isa-cirrus-vga");
1941 static bool vmware_vga_available(void)
1943 return object_class_by_name("vmware-svga");
1946 static bool qxl_vga_available(void)
1948 return object_class_by_name("qxl-vga");
1951 static bool tcx_vga_available(void)
1953 return object_class_by_name("SUNW,tcx");
1956 static bool cg3_vga_available(void)
1958 return object_class_by_name("cgthree");
1961 static void select_vgahw (const char *p)
1963 const char *opts;
1965 assert(vga_interface_type == VGA_NONE);
1966 if (strstart(p, "std", &opts)) {
1967 if (vga_available()) {
1968 vga_interface_type = VGA_STD;
1969 } else {
1970 fprintf(stderr, "Error: standard VGA not available\n");
1971 exit(0);
1973 } else if (strstart(p, "cirrus", &opts)) {
1974 if (cirrus_vga_available()) {
1975 vga_interface_type = VGA_CIRRUS;
1976 } else {
1977 fprintf(stderr, "Error: Cirrus VGA not available\n");
1978 exit(0);
1980 } else if (strstart(p, "vmware", &opts)) {
1981 if (vmware_vga_available()) {
1982 vga_interface_type = VGA_VMWARE;
1983 } else {
1984 fprintf(stderr, "Error: VMWare SVGA not available\n");
1985 exit(0);
1987 } else if (strstart(p, "xenfb", &opts)) {
1988 vga_interface_type = VGA_XENFB;
1989 } else if (strstart(p, "qxl", &opts)) {
1990 if (qxl_vga_available()) {
1991 vga_interface_type = VGA_QXL;
1992 } else {
1993 fprintf(stderr, "Error: QXL VGA not available\n");
1994 exit(0);
1996 } else if (strstart(p, "tcx", &opts)) {
1997 if (tcx_vga_available()) {
1998 vga_interface_type = VGA_TCX;
1999 } else {
2000 fprintf(stderr, "Error: TCX framebuffer not available\n");
2001 exit(0);
2003 } else if (strstart(p, "cg3", &opts)) {
2004 if (cg3_vga_available()) {
2005 vga_interface_type = VGA_CG3;
2006 } else {
2007 fprintf(stderr, "Error: CG3 framebuffer not available\n");
2008 exit(0);
2010 } else if (!strstart(p, "none", &opts)) {
2011 invalid_vga:
2012 fprintf(stderr, "Unknown vga type: %s\n", p);
2013 exit(1);
2015 while (*opts) {
2016 const char *nextopt;
2018 if (strstart(opts, ",retrace=", &nextopt)) {
2019 opts = nextopt;
2020 if (strstart(opts, "dumb", &nextopt))
2021 vga_retrace_method = VGA_RETRACE_DUMB;
2022 else if (strstart(opts, "precise", &nextopt))
2023 vga_retrace_method = VGA_RETRACE_PRECISE;
2024 else goto invalid_vga;
2025 } else goto invalid_vga;
2026 opts = nextopt;
2030 static DisplayType select_display(const char *p)
2032 const char *opts;
2033 DisplayType display = DT_DEFAULT;
2035 if (strstart(p, "sdl", &opts)) {
2036 #ifdef CONFIG_SDL
2037 display = DT_SDL;
2038 while (*opts) {
2039 const char *nextopt;
2041 if (strstart(opts, ",frame=", &nextopt)) {
2042 opts = nextopt;
2043 if (strstart(opts, "on", &nextopt)) {
2044 no_frame = 0;
2045 } else if (strstart(opts, "off", &nextopt)) {
2046 no_frame = 1;
2047 } else {
2048 goto invalid_sdl_args;
2050 } else if (strstart(opts, ",alt_grab=", &nextopt)) {
2051 opts = nextopt;
2052 if (strstart(opts, "on", &nextopt)) {
2053 alt_grab = 1;
2054 } else if (strstart(opts, "off", &nextopt)) {
2055 alt_grab = 0;
2056 } else {
2057 goto invalid_sdl_args;
2059 } else if (strstart(opts, ",ctrl_grab=", &nextopt)) {
2060 opts = nextopt;
2061 if (strstart(opts, "on", &nextopt)) {
2062 ctrl_grab = 1;
2063 } else if (strstart(opts, "off", &nextopt)) {
2064 ctrl_grab = 0;
2065 } else {
2066 goto invalid_sdl_args;
2068 } else if (strstart(opts, ",window_close=", &nextopt)) {
2069 opts = nextopt;
2070 if (strstart(opts, "on", &nextopt)) {
2071 no_quit = 0;
2072 } else if (strstart(opts, "off", &nextopt)) {
2073 no_quit = 1;
2074 } else {
2075 goto invalid_sdl_args;
2077 } else {
2078 invalid_sdl_args:
2079 fprintf(stderr, "Invalid SDL option string: %s\n", p);
2080 exit(1);
2082 opts = nextopt;
2084 #else
2085 fprintf(stderr, "SDL support is disabled\n");
2086 exit(1);
2087 #endif
2088 } else if (strstart(p, "vnc", &opts)) {
2089 #ifdef CONFIG_VNC
2090 display_remote++;
2092 if (*opts) {
2093 const char *nextopt;
2095 if (strstart(opts, "=", &nextopt)) {
2096 vnc_display = nextopt;
2099 if (!vnc_display) {
2100 fprintf(stderr, "VNC requires a display argument vnc=<display>\n");
2101 exit(1);
2103 #else
2104 fprintf(stderr, "VNC support is disabled\n");
2105 exit(1);
2106 #endif
2107 } else if (strstart(p, "curses", &opts)) {
2108 #ifdef CONFIG_CURSES
2109 display = DT_CURSES;
2110 #else
2111 fprintf(stderr, "Curses support is disabled\n");
2112 exit(1);
2113 #endif
2114 } else if (strstart(p, "gtk", &opts)) {
2115 #ifdef CONFIG_GTK
2116 display = DT_GTK;
2117 while (*opts) {
2118 const char *nextopt;
2120 if (strstart(opts, ",grab_on_hover=", &nextopt)) {
2121 opts = nextopt;
2122 if (strstart(opts, "on", &nextopt)) {
2123 grab_on_hover = true;
2124 } else if (strstart(opts, "off", &nextopt)) {
2125 grab_on_hover = false;
2126 } else {
2127 goto invalid_gtk_args;
2129 } else {
2130 invalid_gtk_args:
2131 fprintf(stderr, "Invalid GTK option string: %s\n", p);
2132 exit(1);
2134 opts = nextopt;
2136 #else
2137 fprintf(stderr, "GTK support is disabled\n");
2138 exit(1);
2139 #endif
2140 } else if (strstart(p, "none", &opts)) {
2141 display = DT_NONE;
2142 } else {
2143 fprintf(stderr, "Unknown display type: %s\n", p);
2144 exit(1);
2147 return display;
2150 static int balloon_parse(const char *arg)
2152 QemuOpts *opts;
2154 if (strcmp(arg, "none") == 0) {
2155 return 0;
2158 if (!strncmp(arg, "virtio", 6)) {
2159 if (arg[6] == ',') {
2160 /* have params -> parse them */
2161 opts = qemu_opts_parse(qemu_find_opts("device"), arg+7, 0);
2162 if (!opts)
2163 return -1;
2164 } else {
2165 /* create empty opts */
2166 opts = qemu_opts_create(qemu_find_opts("device"), NULL, 0,
2167 &error_abort);
2169 qemu_opt_set(opts, "driver", "virtio-balloon");
2170 return 0;
2173 return -1;
2176 char *qemu_find_file(int type, const char *name)
2178 int i;
2179 const char *subdir;
2180 char *buf;
2182 /* Try the name as a straight path first */
2183 if (access(name, R_OK) == 0) {
2184 trace_load_file(name, name);
2185 return g_strdup(name);
2188 switch (type) {
2189 case QEMU_FILE_TYPE_BIOS:
2190 subdir = "";
2191 break;
2192 case QEMU_FILE_TYPE_KEYMAP:
2193 subdir = "keymaps/";
2194 break;
2195 default:
2196 abort();
2199 for (i = 0; i < data_dir_idx; i++) {
2200 buf = g_strdup_printf("%s/%s%s", data_dir[i], subdir, name);
2201 if (access(buf, R_OK) == 0) {
2202 trace_load_file(name, buf);
2203 return buf;
2205 g_free(buf);
2207 return NULL;
2210 static int device_help_func(QemuOpts *opts, void *opaque)
2212 return qdev_device_help(opts);
2215 static int device_init_func(QemuOpts *opts, void *opaque)
2217 DeviceState *dev;
2219 dev = qdev_device_add(opts);
2220 if (!dev)
2221 return -1;
2222 object_unref(OBJECT(dev));
2223 return 0;
2226 static int chardev_init_func(QemuOpts *opts, void *opaque)
2228 Error *local_err = NULL;
2230 qemu_chr_new_from_opts(opts, NULL, &local_err);
2231 if (local_err) {
2232 error_report("%s", error_get_pretty(local_err));
2233 error_free(local_err);
2234 return -1;
2236 return 0;
2239 #ifdef CONFIG_VIRTFS
2240 static int fsdev_init_func(QemuOpts *opts, void *opaque)
2242 int ret;
2243 ret = qemu_fsdev_add(opts);
2245 return ret;
2247 #endif
2249 static int mon_init_func(QemuOpts *opts, void *opaque)
2251 CharDriverState *chr;
2252 const char *chardev;
2253 const char *mode;
2254 int flags;
2256 mode = qemu_opt_get(opts, "mode");
2257 if (mode == NULL) {
2258 mode = "readline";
2260 if (strcmp(mode, "readline") == 0) {
2261 flags = MONITOR_USE_READLINE;
2262 } else if (strcmp(mode, "control") == 0) {
2263 flags = MONITOR_USE_CONTROL;
2264 } else {
2265 fprintf(stderr, "unknown monitor mode \"%s\"\n", mode);
2266 exit(1);
2269 if (qemu_opt_get_bool(opts, "pretty", 0))
2270 flags |= MONITOR_USE_PRETTY;
2272 if (qemu_opt_get_bool(opts, "default", 0))
2273 flags |= MONITOR_IS_DEFAULT;
2275 chardev = qemu_opt_get(opts, "chardev");
2276 chr = qemu_chr_find(chardev);
2277 if (chr == NULL) {
2278 fprintf(stderr, "chardev \"%s\" not found\n", chardev);
2279 exit(1);
2282 qemu_chr_fe_claim_no_fail(chr);
2283 monitor_init(chr, flags);
2284 return 0;
2287 static void monitor_parse(const char *optarg, const char *mode, bool pretty)
2289 static int monitor_device_index = 0;
2290 QemuOpts *opts;
2291 const char *p;
2292 char label[32];
2293 int def = 0;
2295 if (strstart(optarg, "chardev:", &p)) {
2296 snprintf(label, sizeof(label), "%s", p);
2297 } else {
2298 snprintf(label, sizeof(label), "compat_monitor%d",
2299 monitor_device_index);
2300 if (monitor_device_index == 0) {
2301 def = 1;
2303 opts = qemu_chr_parse_compat(label, optarg);
2304 if (!opts) {
2305 fprintf(stderr, "parse error: %s\n", optarg);
2306 exit(1);
2310 opts = qemu_opts_create(qemu_find_opts("mon"), label, 1, NULL);
2311 if (!opts) {
2312 fprintf(stderr, "duplicate chardev: %s\n", label);
2313 exit(1);
2315 qemu_opt_set(opts, "mode", mode);
2316 qemu_opt_set(opts, "chardev", label);
2317 qemu_opt_set_bool(opts, "pretty", pretty);
2318 if (def)
2319 qemu_opt_set(opts, "default", "on");
2320 monitor_device_index++;
2323 struct device_config {
2324 enum {
2325 DEV_USB, /* -usbdevice */
2326 DEV_BT, /* -bt */
2327 DEV_SERIAL, /* -serial */
2328 DEV_PARALLEL, /* -parallel */
2329 DEV_VIRTCON, /* -virtioconsole */
2330 DEV_DEBUGCON, /* -debugcon */
2331 DEV_GDB, /* -gdb, -s */
2332 DEV_SCLP, /* s390 sclp */
2333 } type;
2334 const char *cmdline;
2335 Location loc;
2336 QTAILQ_ENTRY(device_config) next;
2339 static QTAILQ_HEAD(, device_config) device_configs =
2340 QTAILQ_HEAD_INITIALIZER(device_configs);
2342 static void add_device_config(int type, const char *cmdline)
2344 struct device_config *conf;
2346 conf = g_malloc0(sizeof(*conf));
2347 conf->type = type;
2348 conf->cmdline = cmdline;
2349 loc_save(&conf->loc);
2350 QTAILQ_INSERT_TAIL(&device_configs, conf, next);
2353 static int foreach_device_config(int type, int (*func)(const char *cmdline))
2355 struct device_config *conf;
2356 int rc;
2358 QTAILQ_FOREACH(conf, &device_configs, next) {
2359 if (conf->type != type)
2360 continue;
2361 loc_push_restore(&conf->loc);
2362 rc = func(conf->cmdline);
2363 loc_pop(&conf->loc);
2364 if (rc) {
2365 return rc;
2368 return 0;
2371 static int serial_parse(const char *devname)
2373 static int index = 0;
2374 char label[32];
2376 if (strcmp(devname, "none") == 0)
2377 return 0;
2378 if (index == MAX_SERIAL_PORTS) {
2379 fprintf(stderr, "qemu: too many serial ports\n");
2380 exit(1);
2382 snprintf(label, sizeof(label), "serial%d", index);
2383 serial_hds[index] = qemu_chr_new(label, devname, NULL);
2384 if (!serial_hds[index]) {
2385 fprintf(stderr, "qemu: could not connect serial device"
2386 " to character backend '%s'\n", devname);
2387 return -1;
2389 index++;
2390 return 0;
2393 static int parallel_parse(const char *devname)
2395 static int index = 0;
2396 char label[32];
2398 if (strcmp(devname, "none") == 0)
2399 return 0;
2400 if (index == MAX_PARALLEL_PORTS) {
2401 fprintf(stderr, "qemu: too many parallel ports\n");
2402 exit(1);
2404 snprintf(label, sizeof(label), "parallel%d", index);
2405 parallel_hds[index] = qemu_chr_new(label, devname, NULL);
2406 if (!parallel_hds[index]) {
2407 fprintf(stderr, "qemu: could not connect parallel device"
2408 " to character backend '%s'\n", devname);
2409 return -1;
2411 index++;
2412 return 0;
2415 static int virtcon_parse(const char *devname)
2417 QemuOptsList *device = qemu_find_opts("device");
2418 static int index = 0;
2419 char label[32];
2420 QemuOpts *bus_opts, *dev_opts;
2422 if (strcmp(devname, "none") == 0)
2423 return 0;
2424 if (index == MAX_VIRTIO_CONSOLES) {
2425 fprintf(stderr, "qemu: too many virtio consoles\n");
2426 exit(1);
2429 bus_opts = qemu_opts_create(device, NULL, 0, &error_abort);
2430 if (arch_type == QEMU_ARCH_S390X) {
2431 qemu_opt_set(bus_opts, "driver", "virtio-serial-s390");
2432 } else {
2433 qemu_opt_set(bus_opts, "driver", "virtio-serial-pci");
2436 dev_opts = qemu_opts_create(device, NULL, 0, &error_abort);
2437 qemu_opt_set(dev_opts, "driver", "virtconsole");
2439 snprintf(label, sizeof(label), "virtcon%d", index);
2440 virtcon_hds[index] = qemu_chr_new(label, devname, NULL);
2441 if (!virtcon_hds[index]) {
2442 fprintf(stderr, "qemu: could not connect virtio console"
2443 " to character backend '%s'\n", devname);
2444 return -1;
2446 qemu_opt_set(dev_opts, "chardev", label);
2448 index++;
2449 return 0;
2452 static int sclp_parse(const char *devname)
2454 QemuOptsList *device = qemu_find_opts("device");
2455 static int index = 0;
2456 char label[32];
2457 QemuOpts *dev_opts;
2459 if (strcmp(devname, "none") == 0) {
2460 return 0;
2462 if (index == MAX_SCLP_CONSOLES) {
2463 fprintf(stderr, "qemu: too many sclp consoles\n");
2464 exit(1);
2467 assert(arch_type == QEMU_ARCH_S390X);
2469 dev_opts = qemu_opts_create(device, NULL, 0, NULL);
2470 qemu_opt_set(dev_opts, "driver", "sclpconsole");
2472 snprintf(label, sizeof(label), "sclpcon%d", index);
2473 sclp_hds[index] = qemu_chr_new(label, devname, NULL);
2474 if (!sclp_hds[index]) {
2475 fprintf(stderr, "qemu: could not connect sclp console"
2476 " to character backend '%s'\n", devname);
2477 return -1;
2479 qemu_opt_set(dev_opts, "chardev", label);
2481 index++;
2482 return 0;
2485 static int debugcon_parse(const char *devname)
2487 QemuOpts *opts;
2489 if (!qemu_chr_new("debugcon", devname, NULL)) {
2490 exit(1);
2492 opts = qemu_opts_create(qemu_find_opts("device"), "debugcon", 1, NULL);
2493 if (!opts) {
2494 fprintf(stderr, "qemu: already have a debugcon device\n");
2495 exit(1);
2497 qemu_opt_set(opts, "driver", "isa-debugcon");
2498 qemu_opt_set(opts, "chardev", "debugcon");
2499 return 0;
2502 static gint machine_class_cmp(gconstpointer a, gconstpointer b)
2504 const MachineClass *mc1 = a, *mc2 = b;
2505 int res;
2507 if (mc1->family == NULL) {
2508 if (mc2->family == NULL) {
2509 /* Compare standalone machine types against each other; they sort
2510 * in increasing order.
2512 return strcmp(object_class_get_name(OBJECT_CLASS(mc1)),
2513 object_class_get_name(OBJECT_CLASS(mc2)));
2516 /* Standalone machine types sort after families. */
2517 return 1;
2520 if (mc2->family == NULL) {
2521 /* Families sort before standalone machine types. */
2522 return -1;
2525 /* Families sort between each other alphabetically increasingly. */
2526 res = strcmp(mc1->family, mc2->family);
2527 if (res != 0) {
2528 return res;
2531 /* Within the same family, machine types sort in decreasing order. */
2532 return strcmp(object_class_get_name(OBJECT_CLASS(mc2)),
2533 object_class_get_name(OBJECT_CLASS(mc1)));
2536 static MachineClass *machine_parse(const char *name)
2538 MachineClass *mc = NULL;
2539 GSList *el, *machines = object_class_get_list(TYPE_MACHINE, false);
2541 if (name) {
2542 mc = find_machine(name);
2544 if (mc) {
2545 return mc;
2547 if (name && !is_help_option(name)) {
2548 error_report("Unsupported machine type");
2549 error_printf("Use -machine help to list supported machines!\n");
2550 } else {
2551 printf("Supported machines are:\n");
2552 machines = g_slist_sort(machines, machine_class_cmp);
2553 for (el = machines; el; el = el->next) {
2554 MachineClass *mc = el->data;
2555 if (mc->alias) {
2556 printf("%-20s %s (alias of %s)\n", mc->alias, mc->desc, mc->name);
2558 printf("%-20s %s%s\n", mc->name, mc->desc,
2559 mc->is_default ? " (default)" : "");
2563 g_slist_free(machines);
2564 exit(!name || !is_help_option(name));
2567 void qemu_add_exit_notifier(Notifier *notify)
2569 notifier_list_add(&exit_notifiers, notify);
2572 void qemu_remove_exit_notifier(Notifier *notify)
2574 notifier_remove(notify);
2577 static void qemu_run_exit_notifiers(void)
2579 notifier_list_notify(&exit_notifiers, NULL);
2582 void qemu_add_machine_init_done_notifier(Notifier *notify)
2584 notifier_list_add(&machine_init_done_notifiers, notify);
2587 static void qemu_run_machine_init_done_notifiers(void)
2589 notifier_list_notify(&machine_init_done_notifiers, NULL);
2592 static const QEMUOption *lookup_opt(int argc, char **argv,
2593 const char **poptarg, int *poptind)
2595 const QEMUOption *popt;
2596 int optind = *poptind;
2597 char *r = argv[optind];
2598 const char *optarg;
2600 loc_set_cmdline(argv, optind, 1);
2601 optind++;
2602 /* Treat --foo the same as -foo. */
2603 if (r[1] == '-')
2604 r++;
2605 popt = qemu_options;
2606 for(;;) {
2607 if (!popt->name) {
2608 error_report("invalid option");
2609 exit(1);
2611 if (!strcmp(popt->name, r + 1))
2612 break;
2613 popt++;
2615 if (popt->flags & HAS_ARG) {
2616 if (optind >= argc) {
2617 error_report("requires an argument");
2618 exit(1);
2620 optarg = argv[optind++];
2621 loc_set_cmdline(argv, optind - 2, 2);
2622 } else {
2623 optarg = NULL;
2626 *poptarg = optarg;
2627 *poptind = optind;
2629 return popt;
2632 static gpointer malloc_and_trace(gsize n_bytes)
2634 void *ptr = malloc(n_bytes);
2635 trace_g_malloc(n_bytes, ptr);
2636 return ptr;
2639 static gpointer realloc_and_trace(gpointer mem, gsize n_bytes)
2641 void *ptr = realloc(mem, n_bytes);
2642 trace_g_realloc(mem, n_bytes, ptr);
2643 return ptr;
2646 static void free_and_trace(gpointer mem)
2648 trace_g_free(mem);
2649 free(mem);
2652 static int machine_set_property(const char *name, const char *value,
2653 void *opaque)
2655 Object *obj = OBJECT(opaque);
2656 StringInputVisitor *siv;
2657 Error *local_err = NULL;
2658 char *c, *qom_name;
2660 if (strcmp(name, "type") == 0) {
2661 return 0;
2664 qom_name = g_strdup(name);
2665 c = qom_name;
2666 while (*c++) {
2667 if (*c == '_') {
2668 *c = '-';
2672 siv = string_input_visitor_new(value);
2673 object_property_set(obj, string_input_get_visitor(siv), qom_name, &local_err);
2674 string_input_visitor_cleanup(siv);
2675 g_free(qom_name);
2677 if (local_err) {
2678 qerror_report_err(local_err);
2679 error_free(local_err);
2680 return -1;
2683 return 0;
2686 static int object_create(QemuOpts *opts, void *opaque)
2688 Error *err = NULL;
2689 char *type = NULL;
2690 char *id = NULL;
2691 void *dummy = NULL;
2692 OptsVisitor *ov;
2693 QDict *pdict;
2695 ov = opts_visitor_new(opts);
2696 pdict = qemu_opts_to_qdict(opts, NULL);
2698 visit_start_struct(opts_get_visitor(ov), &dummy, NULL, NULL, 0, &err);
2699 if (err) {
2700 goto out;
2703 qdict_del(pdict, "qom-type");
2704 visit_type_str(opts_get_visitor(ov), &type, "qom-type", &err);
2705 if (err) {
2706 goto out;
2709 qdict_del(pdict, "id");
2710 visit_type_str(opts_get_visitor(ov), &id, "id", &err);
2711 if (err) {
2712 goto out;
2715 object_add(type, id, pdict, opts_get_visitor(ov), &err);
2716 if (err) {
2717 goto out;
2719 visit_end_struct(opts_get_visitor(ov), &err);
2720 if (err) {
2721 qmp_object_del(id, NULL);
2724 out:
2725 opts_visitor_cleanup(ov);
2727 QDECREF(pdict);
2728 g_free(id);
2729 g_free(type);
2730 g_free(dummy);
2731 if (err) {
2732 qerror_report_err(err);
2733 error_free(err);
2734 return -1;
2736 return 0;
2739 int main(int argc, char **argv, char **envp)
2741 int i;
2742 int snapshot, linux_boot;
2743 const char *initrd_filename;
2744 const char *kernel_filename, *kernel_cmdline;
2745 const char *boot_order;
2746 DisplayState *ds;
2747 int cyls, heads, secs, translation;
2748 QemuOpts *hda_opts = NULL, *opts, *machine_opts, *icount_opts = NULL;
2749 QemuOptsList *olist;
2750 int optind;
2751 const char *optarg;
2752 const char *loadvm = NULL;
2753 MachineClass *machine_class;
2754 const char *cpu_model;
2755 const char *vga_model = NULL;
2756 const char *qtest_chrdev = NULL;
2757 const char *qtest_log = NULL;
2758 const char *pid_file = NULL;
2759 const char *incoming = NULL;
2760 #ifdef CONFIG_VNC
2761 int show_vnc_port = 0;
2762 #endif
2763 bool defconfig = true;
2764 bool userconfig = true;
2765 const char *log_mask = NULL;
2766 const char *log_file = NULL;
2767 GMemVTable mem_trace = {
2768 .malloc = malloc_and_trace,
2769 .realloc = realloc_and_trace,
2770 .free = free_and_trace,
2772 const char *trace_events = NULL;
2773 const char *trace_file = NULL;
2774 const ram_addr_t default_ram_size = (ram_addr_t)DEFAULT_RAM_SIZE *
2775 1024 * 1024;
2776 ram_addr_t maxram_size = default_ram_size;
2777 uint64_t ram_slots = 0;
2778 FILE *vmstate_dump_file = NULL;
2779 Error *main_loop_err = NULL;
2781 atexit(qemu_run_exit_notifiers);
2782 error_set_progname(argv[0]);
2783 qemu_init_exec_dir(argv[0]);
2785 g_mem_set_vtable(&mem_trace);
2787 module_call_init(MODULE_INIT_QOM);
2789 qemu_add_opts(&qemu_drive_opts);
2790 qemu_add_drive_opts(&qemu_legacy_drive_opts);
2791 qemu_add_drive_opts(&qemu_common_drive_opts);
2792 qemu_add_drive_opts(&qemu_drive_opts);
2793 qemu_add_opts(&qemu_chardev_opts);
2794 qemu_add_opts(&qemu_device_opts);
2795 qemu_add_opts(&qemu_netdev_opts);
2796 qemu_add_opts(&qemu_net_opts);
2797 qemu_add_opts(&qemu_rtc_opts);
2798 qemu_add_opts(&qemu_global_opts);
2799 qemu_add_opts(&qemu_mon_opts);
2800 qemu_add_opts(&qemu_trace_opts);
2801 qemu_add_opts(&qemu_option_rom_opts);
2802 qemu_add_opts(&qemu_machine_opts);
2803 qemu_add_opts(&qemu_mem_opts);
2804 qemu_add_opts(&qemu_smp_opts);
2805 qemu_add_opts(&qemu_boot_opts);
2806 qemu_add_opts(&qemu_sandbox_opts);
2807 qemu_add_opts(&qemu_add_fd_opts);
2808 qemu_add_opts(&qemu_object_opts);
2809 qemu_add_opts(&qemu_tpmdev_opts);
2810 qemu_add_opts(&qemu_realtime_opts);
2811 qemu_add_opts(&qemu_msg_opts);
2812 qemu_add_opts(&qemu_name_opts);
2813 qemu_add_opts(&qemu_numa_opts);
2814 qemu_add_opts(&qemu_icount_opts);
2816 runstate_init();
2818 rtc_clock = QEMU_CLOCK_HOST;
2820 QLIST_INIT (&vm_change_state_head);
2821 os_setup_early_signal_handling();
2823 module_call_init(MODULE_INIT_MACHINE);
2824 machine_class = find_default_machine();
2825 cpu_model = NULL;
2826 ram_size = default_ram_size;
2827 snapshot = 0;
2828 cyls = heads = secs = 0;
2829 translation = BIOS_ATA_TRANSLATION_AUTO;
2831 for (i = 0; i < MAX_NODES; i++) {
2832 numa_info[i].node_mem = 0;
2833 numa_info[i].present = false;
2834 bitmap_zero(numa_info[i].node_cpu, MAX_CPUMASK_BITS);
2837 nb_numa_nodes = 0;
2838 max_numa_nodeid = 0;
2839 nb_nics = 0;
2841 bdrv_init_with_whitelist();
2843 autostart = 1;
2845 /* first pass of option parsing */
2846 optind = 1;
2847 while (optind < argc) {
2848 if (argv[optind][0] != '-') {
2849 /* disk image */
2850 optind++;
2851 } else {
2852 const QEMUOption *popt;
2854 popt = lookup_opt(argc, argv, &optarg, &optind);
2855 switch (popt->index) {
2856 case QEMU_OPTION_nodefconfig:
2857 defconfig = false;
2858 break;
2859 case QEMU_OPTION_nouserconfig:
2860 userconfig = false;
2861 break;
2866 if (defconfig) {
2867 int ret;
2868 ret = qemu_read_default_config_files(userconfig);
2869 if (ret < 0) {
2870 exit(1);
2874 /* second pass of option parsing */
2875 optind = 1;
2876 for(;;) {
2877 if (optind >= argc)
2878 break;
2879 if (argv[optind][0] != '-') {
2880 hda_opts = drive_add(IF_DEFAULT, 0, argv[optind++], HD_OPTS);
2881 } else {
2882 const QEMUOption *popt;
2884 popt = lookup_opt(argc, argv, &optarg, &optind);
2885 if (!(popt->arch_mask & arch_type)) {
2886 printf("Option %s not supported for this target\n", popt->name);
2887 exit(1);
2889 switch(popt->index) {
2890 case QEMU_OPTION_M:
2891 machine_class = machine_parse(optarg);
2892 break;
2893 case QEMU_OPTION_no_kvm_irqchip: {
2894 olist = qemu_find_opts("machine");
2895 qemu_opts_parse(olist, "kernel_irqchip=off", 0);
2896 break;
2898 case QEMU_OPTION_cpu:
2899 /* hw initialization will check this */
2900 cpu_model = optarg;
2901 break;
2902 case QEMU_OPTION_hda:
2904 char buf[256];
2905 if (cyls == 0)
2906 snprintf(buf, sizeof(buf), "%s", HD_OPTS);
2907 else
2908 snprintf(buf, sizeof(buf),
2909 "%s,cyls=%d,heads=%d,secs=%d%s",
2910 HD_OPTS , cyls, heads, secs,
2911 translation == BIOS_ATA_TRANSLATION_LBA ?
2912 ",trans=lba" :
2913 translation == BIOS_ATA_TRANSLATION_NONE ?
2914 ",trans=none" : "");
2915 drive_add(IF_DEFAULT, 0, optarg, buf);
2916 break;
2918 case QEMU_OPTION_hdb:
2919 case QEMU_OPTION_hdc:
2920 case QEMU_OPTION_hdd:
2921 drive_add(IF_DEFAULT, popt->index - QEMU_OPTION_hda, optarg,
2922 HD_OPTS);
2923 break;
2924 case QEMU_OPTION_drive:
2925 if (drive_def(optarg) == NULL) {
2926 exit(1);
2928 break;
2929 case QEMU_OPTION_set:
2930 if (qemu_set_option(optarg) != 0)
2931 exit(1);
2932 break;
2933 case QEMU_OPTION_global:
2934 if (qemu_global_option(optarg) != 0)
2935 exit(1);
2936 break;
2937 case QEMU_OPTION_mtdblock:
2938 drive_add(IF_MTD, -1, optarg, MTD_OPTS);
2939 break;
2940 case QEMU_OPTION_sd:
2941 drive_add(IF_SD, -1, optarg, SD_OPTS);
2942 break;
2943 case QEMU_OPTION_pflash:
2944 drive_add(IF_PFLASH, -1, optarg, PFLASH_OPTS);
2945 break;
2946 case QEMU_OPTION_snapshot:
2947 snapshot = 1;
2948 break;
2949 case QEMU_OPTION_hdachs:
2951 const char *p;
2952 p = optarg;
2953 cyls = strtol(p, (char **)&p, 0);
2954 if (cyls < 1 || cyls > 16383)
2955 goto chs_fail;
2956 if (*p != ',')
2957 goto chs_fail;
2958 p++;
2959 heads = strtol(p, (char **)&p, 0);
2960 if (heads < 1 || heads > 16)
2961 goto chs_fail;
2962 if (*p != ',')
2963 goto chs_fail;
2964 p++;
2965 secs = strtol(p, (char **)&p, 0);
2966 if (secs < 1 || secs > 63)
2967 goto chs_fail;
2968 if (*p == ',') {
2969 p++;
2970 if (!strcmp(p, "large")) {
2971 translation = BIOS_ATA_TRANSLATION_LARGE;
2972 } else if (!strcmp(p, "rechs")) {
2973 translation = BIOS_ATA_TRANSLATION_RECHS;
2974 } else if (!strcmp(p, "none")) {
2975 translation = BIOS_ATA_TRANSLATION_NONE;
2976 } else if (!strcmp(p, "lba")) {
2977 translation = BIOS_ATA_TRANSLATION_LBA;
2978 } else if (!strcmp(p, "auto")) {
2979 translation = BIOS_ATA_TRANSLATION_AUTO;
2980 } else {
2981 goto chs_fail;
2983 } else if (*p != '\0') {
2984 chs_fail:
2985 fprintf(stderr, "qemu: invalid physical CHS format\n");
2986 exit(1);
2988 if (hda_opts != NULL) {
2989 char num[16];
2990 snprintf(num, sizeof(num), "%d", cyls);
2991 qemu_opt_set(hda_opts, "cyls", num);
2992 snprintf(num, sizeof(num), "%d", heads);
2993 qemu_opt_set(hda_opts, "heads", num);
2994 snprintf(num, sizeof(num), "%d", secs);
2995 qemu_opt_set(hda_opts, "secs", num);
2996 if (translation == BIOS_ATA_TRANSLATION_LARGE) {
2997 qemu_opt_set(hda_opts, "trans", "large");
2998 } else if (translation == BIOS_ATA_TRANSLATION_RECHS) {
2999 qemu_opt_set(hda_opts, "trans", "rechs");
3000 } else if (translation == BIOS_ATA_TRANSLATION_LBA) {
3001 qemu_opt_set(hda_opts, "trans", "lba");
3002 } else if (translation == BIOS_ATA_TRANSLATION_NONE) {
3003 qemu_opt_set(hda_opts, "trans", "none");
3007 break;
3008 case QEMU_OPTION_numa:
3009 opts = qemu_opts_parse(qemu_find_opts("numa"), optarg, 1);
3010 if (!opts) {
3011 exit(1);
3013 break;
3014 case QEMU_OPTION_display:
3015 display_type = select_display(optarg);
3016 break;
3017 case QEMU_OPTION_nographic:
3018 display_type = DT_NOGRAPHIC;
3019 break;
3020 case QEMU_OPTION_curses:
3021 #ifdef CONFIG_CURSES
3022 display_type = DT_CURSES;
3023 #else
3024 fprintf(stderr, "Curses support is disabled\n");
3025 exit(1);
3026 #endif
3027 break;
3028 case QEMU_OPTION_portrait:
3029 graphic_rotate = 90;
3030 break;
3031 case QEMU_OPTION_rotate:
3032 graphic_rotate = strtol(optarg, (char **) &optarg, 10);
3033 if (graphic_rotate != 0 && graphic_rotate != 90 &&
3034 graphic_rotate != 180 && graphic_rotate != 270) {
3035 fprintf(stderr,
3036 "qemu: only 90, 180, 270 deg rotation is available\n");
3037 exit(1);
3039 break;
3040 case QEMU_OPTION_kernel:
3041 qemu_opts_set(qemu_find_opts("machine"), 0, "kernel", optarg);
3042 break;
3043 case QEMU_OPTION_initrd:
3044 qemu_opts_set(qemu_find_opts("machine"), 0, "initrd", optarg);
3045 break;
3046 case QEMU_OPTION_append:
3047 qemu_opts_set(qemu_find_opts("machine"), 0, "append", optarg);
3048 break;
3049 case QEMU_OPTION_dtb:
3050 qemu_opts_set(qemu_find_opts("machine"), 0, "dtb", optarg);
3051 break;
3052 case QEMU_OPTION_cdrom:
3053 drive_add(IF_DEFAULT, 2, optarg, CDROM_OPTS);
3054 break;
3055 case QEMU_OPTION_boot:
3056 opts = qemu_opts_parse(qemu_find_opts("boot-opts"), optarg, 1);
3057 if (!opts) {
3058 exit(1);
3060 break;
3061 case QEMU_OPTION_fda:
3062 case QEMU_OPTION_fdb:
3063 drive_add(IF_FLOPPY, popt->index - QEMU_OPTION_fda,
3064 optarg, FD_OPTS);
3065 break;
3066 case QEMU_OPTION_no_fd_bootchk:
3067 fd_bootchk = 0;
3068 break;
3069 case QEMU_OPTION_netdev:
3070 if (net_client_parse(qemu_find_opts("netdev"), optarg) == -1) {
3071 exit(1);
3073 break;
3074 case QEMU_OPTION_net:
3075 if (net_client_parse(qemu_find_opts("net"), optarg) == -1) {
3076 exit(1);
3078 break;
3079 #ifdef CONFIG_LIBISCSI
3080 case QEMU_OPTION_iscsi:
3081 opts = qemu_opts_parse(qemu_find_opts("iscsi"), optarg, 0);
3082 if (!opts) {
3083 exit(1);
3085 break;
3086 #endif
3087 #ifdef CONFIG_SLIRP
3088 case QEMU_OPTION_tftp:
3089 legacy_tftp_prefix = optarg;
3090 break;
3091 case QEMU_OPTION_bootp:
3092 legacy_bootp_filename = optarg;
3093 break;
3094 case QEMU_OPTION_redir:
3095 if (net_slirp_redir(optarg) < 0)
3096 exit(1);
3097 break;
3098 #endif
3099 case QEMU_OPTION_bt:
3100 add_device_config(DEV_BT, optarg);
3101 break;
3102 case QEMU_OPTION_audio_help:
3103 AUD_help ();
3104 exit (0);
3105 break;
3106 case QEMU_OPTION_soundhw:
3107 select_soundhw (optarg);
3108 break;
3109 case QEMU_OPTION_h:
3110 help(0);
3111 break;
3112 case QEMU_OPTION_version:
3113 version();
3114 exit(0);
3115 break;
3116 case QEMU_OPTION_m: {
3117 uint64_t sz;
3118 const char *mem_str;
3119 const char *maxmem_str, *slots_str;
3121 opts = qemu_opts_parse(qemu_find_opts("memory"),
3122 optarg, 1);
3123 if (!opts) {
3124 exit(EXIT_FAILURE);
3127 mem_str = qemu_opt_get(opts, "size");
3128 if (!mem_str) {
3129 error_report("invalid -m option, missing 'size' option");
3130 exit(EXIT_FAILURE);
3132 if (!*mem_str) {
3133 error_report("missing 'size' option value");
3134 exit(EXIT_FAILURE);
3137 sz = qemu_opt_get_size(opts, "size", ram_size);
3139 /* Fix up legacy suffix-less format */
3140 if (g_ascii_isdigit(mem_str[strlen(mem_str) - 1])) {
3141 uint64_t overflow_check = sz;
3143 sz <<= 20;
3144 if ((sz >> 20) != overflow_check) {
3145 error_report("too large 'size' option value");
3146 exit(EXIT_FAILURE);
3150 /* backward compatibility behaviour for case "-m 0" */
3151 if (sz == 0) {
3152 sz = default_ram_size;
3155 sz = QEMU_ALIGN_UP(sz, 8192);
3156 ram_size = sz;
3157 if (ram_size != sz) {
3158 error_report("ram size too large");
3159 exit(EXIT_FAILURE);
3161 maxram_size = ram_size;
3163 maxmem_str = qemu_opt_get(opts, "maxmem");
3164 slots_str = qemu_opt_get(opts, "slots");
3165 if (maxmem_str && slots_str) {
3166 uint64_t slots;
3168 sz = qemu_opt_get_size(opts, "maxmem", 0);
3169 if (sz < ram_size) {
3170 error_report("invalid -m option value: maxmem "
3171 "(0x%" PRIx64 ") <= initial memory (0x"
3172 RAM_ADDR_FMT ")", sz, ram_size);
3173 exit(EXIT_FAILURE);
3176 slots = qemu_opt_get_number(opts, "slots", 0);
3177 if ((sz > ram_size) && !slots) {
3178 error_report("invalid -m option value: maxmem "
3179 "(0x%" PRIx64 ") more than initial memory (0x"
3180 RAM_ADDR_FMT ") but no hotplug slots where "
3181 "specified", sz, ram_size);
3182 exit(EXIT_FAILURE);
3185 if ((sz <= ram_size) && slots) {
3186 error_report("invalid -m option value: %"
3187 PRIu64 " hotplug slots where specified but "
3188 "maxmem (0x%" PRIx64 ") <= initial memory (0x"
3189 RAM_ADDR_FMT ")", slots, sz, ram_size);
3190 exit(EXIT_FAILURE);
3192 maxram_size = sz;
3193 ram_slots = slots;
3194 } else if ((!maxmem_str && slots_str) ||
3195 (maxmem_str && !slots_str)) {
3196 error_report("invalid -m option value: missing "
3197 "'%s' option", slots_str ? "maxmem" : "slots");
3198 exit(EXIT_FAILURE);
3200 break;
3202 #ifdef CONFIG_TPM
3203 case QEMU_OPTION_tpmdev:
3204 if (tpm_config_parse(qemu_find_opts("tpmdev"), optarg) < 0) {
3205 exit(1);
3207 break;
3208 #endif
3209 case QEMU_OPTION_mempath:
3210 mem_path = optarg;
3211 break;
3212 case QEMU_OPTION_mem_prealloc:
3213 mem_prealloc = 1;
3214 break;
3215 case QEMU_OPTION_d:
3216 log_mask = optarg;
3217 break;
3218 case QEMU_OPTION_D:
3219 log_file = optarg;
3220 break;
3221 case QEMU_OPTION_s:
3222 add_device_config(DEV_GDB, "tcp::" DEFAULT_GDBSTUB_PORT);
3223 break;
3224 case QEMU_OPTION_gdb:
3225 add_device_config(DEV_GDB, optarg);
3226 break;
3227 case QEMU_OPTION_L:
3228 if (data_dir_idx < ARRAY_SIZE(data_dir)) {
3229 data_dir[data_dir_idx++] = optarg;
3231 break;
3232 case QEMU_OPTION_bios:
3233 qemu_opts_set(qemu_find_opts("machine"), 0, "firmware", optarg);
3234 break;
3235 case QEMU_OPTION_singlestep:
3236 singlestep = 1;
3237 break;
3238 case QEMU_OPTION_S:
3239 autostart = 0;
3240 break;
3241 case QEMU_OPTION_k:
3242 keyboard_layout = optarg;
3243 break;
3244 case QEMU_OPTION_localtime:
3245 rtc_utc = 0;
3246 break;
3247 case QEMU_OPTION_vga:
3248 vga_model = optarg;
3249 default_vga = 0;
3250 break;
3251 case QEMU_OPTION_g:
3253 const char *p;
3254 int w, h, depth;
3255 p = optarg;
3256 w = strtol(p, (char **)&p, 10);
3257 if (w <= 0) {
3258 graphic_error:
3259 fprintf(stderr, "qemu: invalid resolution or depth\n");
3260 exit(1);
3262 if (*p != 'x')
3263 goto graphic_error;
3264 p++;
3265 h = strtol(p, (char **)&p, 10);
3266 if (h <= 0)
3267 goto graphic_error;
3268 if (*p == 'x') {
3269 p++;
3270 depth = strtol(p, (char **)&p, 10);
3271 if (depth != 8 && depth != 15 && depth != 16 &&
3272 depth != 24 && depth != 32)
3273 goto graphic_error;
3274 } else if (*p == '\0') {
3275 depth = graphic_depth;
3276 } else {
3277 goto graphic_error;
3280 graphic_width = w;
3281 graphic_height = h;
3282 graphic_depth = depth;
3284 break;
3285 case QEMU_OPTION_echr:
3287 char *r;
3288 term_escape_char = strtol(optarg, &r, 0);
3289 if (r == optarg)
3290 printf("Bad argument to echr\n");
3291 break;
3293 case QEMU_OPTION_monitor:
3294 default_monitor = 0;
3295 if (strncmp(optarg, "none", 4)) {
3296 monitor_parse(optarg, "readline", false);
3298 break;
3299 case QEMU_OPTION_qmp:
3300 monitor_parse(optarg, "control", false);
3301 default_monitor = 0;
3302 break;
3303 case QEMU_OPTION_qmp_pretty:
3304 monitor_parse(optarg, "control", true);
3305 default_monitor = 0;
3306 break;
3307 case QEMU_OPTION_mon:
3308 opts = qemu_opts_parse(qemu_find_opts("mon"), optarg, 1);
3309 if (!opts) {
3310 exit(1);
3312 default_monitor = 0;
3313 break;
3314 case QEMU_OPTION_chardev:
3315 opts = qemu_opts_parse(qemu_find_opts("chardev"), optarg, 1);
3316 if (!opts) {
3317 exit(1);
3319 break;
3320 case QEMU_OPTION_fsdev:
3321 olist = qemu_find_opts("fsdev");
3322 if (!olist) {
3323 fprintf(stderr, "fsdev is not supported by this qemu build.\n");
3324 exit(1);
3326 opts = qemu_opts_parse(olist, optarg, 1);
3327 if (!opts) {
3328 exit(1);
3330 break;
3331 case QEMU_OPTION_virtfs: {
3332 QemuOpts *fsdev;
3333 QemuOpts *device;
3334 const char *writeout, *sock_fd, *socket;
3336 olist = qemu_find_opts("virtfs");
3337 if (!olist) {
3338 fprintf(stderr, "virtfs is not supported by this qemu build.\n");
3339 exit(1);
3341 opts = qemu_opts_parse(olist, optarg, 1);
3342 if (!opts) {
3343 exit(1);
3346 if (qemu_opt_get(opts, "fsdriver") == NULL ||
3347 qemu_opt_get(opts, "mount_tag") == NULL) {
3348 fprintf(stderr, "Usage: -virtfs fsdriver,mount_tag=tag.\n");
3349 exit(1);
3351 fsdev = qemu_opts_create(qemu_find_opts("fsdev"),
3352 qemu_opt_get(opts, "mount_tag"),
3353 1, NULL);
3354 if (!fsdev) {
3355 fprintf(stderr, "duplicate fsdev id: %s\n",
3356 qemu_opt_get(opts, "mount_tag"));
3357 exit(1);
3360 writeout = qemu_opt_get(opts, "writeout");
3361 if (writeout) {
3362 #ifdef CONFIG_SYNC_FILE_RANGE
3363 qemu_opt_set(fsdev, "writeout", writeout);
3364 #else
3365 fprintf(stderr, "writeout=immediate not supported on "
3366 "this platform\n");
3367 exit(1);
3368 #endif
3370 qemu_opt_set(fsdev, "fsdriver", qemu_opt_get(opts, "fsdriver"));
3371 qemu_opt_set(fsdev, "path", qemu_opt_get(opts, "path"));
3372 qemu_opt_set(fsdev, "security_model",
3373 qemu_opt_get(opts, "security_model"));
3374 socket = qemu_opt_get(opts, "socket");
3375 if (socket) {
3376 qemu_opt_set(fsdev, "socket", socket);
3378 sock_fd = qemu_opt_get(opts, "sock_fd");
3379 if (sock_fd) {
3380 qemu_opt_set(fsdev, "sock_fd", sock_fd);
3383 qemu_opt_set_bool(fsdev, "readonly",
3384 qemu_opt_get_bool(opts, "readonly", 0));
3385 device = qemu_opts_create(qemu_find_opts("device"), NULL, 0,
3386 &error_abort);
3387 qemu_opt_set(device, "driver", "virtio-9p-pci");
3388 qemu_opt_set(device, "fsdev",
3389 qemu_opt_get(opts, "mount_tag"));
3390 qemu_opt_set(device, "mount_tag",
3391 qemu_opt_get(opts, "mount_tag"));
3392 break;
3394 case QEMU_OPTION_virtfs_synth: {
3395 QemuOpts *fsdev;
3396 QemuOpts *device;
3398 fsdev = qemu_opts_create(qemu_find_opts("fsdev"), "v_synth",
3399 1, NULL);
3400 if (!fsdev) {
3401 fprintf(stderr, "duplicate option: %s\n", "virtfs_synth");
3402 exit(1);
3404 qemu_opt_set(fsdev, "fsdriver", "synth");
3406 device = qemu_opts_create(qemu_find_opts("device"), NULL, 0,
3407 &error_abort);
3408 qemu_opt_set(device, "driver", "virtio-9p-pci");
3409 qemu_opt_set(device, "fsdev", "v_synth");
3410 qemu_opt_set(device, "mount_tag", "v_synth");
3411 break;
3413 case QEMU_OPTION_serial:
3414 add_device_config(DEV_SERIAL, optarg);
3415 default_serial = 0;
3416 if (strncmp(optarg, "mon:", 4) == 0) {
3417 default_monitor = 0;
3419 break;
3420 case QEMU_OPTION_watchdog:
3421 if (watchdog) {
3422 fprintf(stderr,
3423 "qemu: only one watchdog option may be given\n");
3424 return 1;
3426 watchdog = optarg;
3427 break;
3428 case QEMU_OPTION_watchdog_action:
3429 if (select_watchdog_action(optarg) == -1) {
3430 fprintf(stderr, "Unknown -watchdog-action parameter\n");
3431 exit(1);
3433 break;
3434 case QEMU_OPTION_virtiocon:
3435 add_device_config(DEV_VIRTCON, optarg);
3436 default_virtcon = 0;
3437 if (strncmp(optarg, "mon:", 4) == 0) {
3438 default_monitor = 0;
3440 break;
3441 case QEMU_OPTION_parallel:
3442 add_device_config(DEV_PARALLEL, optarg);
3443 default_parallel = 0;
3444 if (strncmp(optarg, "mon:", 4) == 0) {
3445 default_monitor = 0;
3447 break;
3448 case QEMU_OPTION_debugcon:
3449 add_device_config(DEV_DEBUGCON, optarg);
3450 break;
3451 case QEMU_OPTION_loadvm:
3452 loadvm = optarg;
3453 break;
3454 case QEMU_OPTION_full_screen:
3455 full_screen = 1;
3456 break;
3457 case QEMU_OPTION_no_frame:
3458 no_frame = 1;
3459 break;
3460 case QEMU_OPTION_alt_grab:
3461 alt_grab = 1;
3462 break;
3463 case QEMU_OPTION_ctrl_grab:
3464 ctrl_grab = 1;
3465 break;
3466 case QEMU_OPTION_no_quit:
3467 no_quit = 1;
3468 break;
3469 case QEMU_OPTION_sdl:
3470 #ifdef CONFIG_SDL
3471 display_type = DT_SDL;
3472 break;
3473 #else
3474 fprintf(stderr, "SDL support is disabled\n");
3475 exit(1);
3476 #endif
3477 case QEMU_OPTION_pidfile:
3478 pid_file = optarg;
3479 break;
3480 case QEMU_OPTION_win2k_hack:
3481 win2k_install_hack = 1;
3482 break;
3483 case QEMU_OPTION_rtc_td_hack: {
3484 static GlobalProperty slew_lost_ticks[] = {
3486 .driver = "mc146818rtc",
3487 .property = "lost_tick_policy",
3488 .value = "slew",
3490 { /* end of list */ }
3493 qdev_prop_register_global_list(slew_lost_ticks);
3494 break;
3496 case QEMU_OPTION_acpitable:
3497 opts = qemu_opts_parse(qemu_find_opts("acpi"), optarg, 1);
3498 if (!opts) {
3499 exit(1);
3501 do_acpitable_option(opts);
3502 break;
3503 case QEMU_OPTION_smbios:
3504 opts = qemu_opts_parse(qemu_find_opts("smbios"), optarg, 0);
3505 if (!opts) {
3506 exit(1);
3508 do_smbios_option(opts);
3509 break;
3510 case QEMU_OPTION_enable_kvm:
3511 olist = qemu_find_opts("machine");
3512 qemu_opts_parse(olist, "accel=kvm", 0);
3513 break;
3514 case QEMU_OPTION_machine:
3515 olist = qemu_find_opts("machine");
3516 opts = qemu_opts_parse(olist, optarg, 1);
3517 if (!opts) {
3518 exit(1);
3520 optarg = qemu_opt_get(opts, "type");
3521 if (optarg) {
3522 machine_class = machine_parse(optarg);
3524 break;
3525 case QEMU_OPTION_no_kvm:
3526 olist = qemu_find_opts("machine");
3527 qemu_opts_parse(olist, "accel=tcg", 0);
3528 break;
3529 case QEMU_OPTION_no_kvm_pit: {
3530 fprintf(stderr, "Warning: KVM PIT can no longer be disabled "
3531 "separately.\n");
3532 break;
3534 case QEMU_OPTION_no_kvm_pit_reinjection: {
3535 static GlobalProperty kvm_pit_lost_tick_policy[] = {
3537 .driver = "kvm-pit",
3538 .property = "lost_tick_policy",
3539 .value = "discard",
3541 { /* end of list */ }
3544 fprintf(stderr, "Warning: option deprecated, use "
3545 "lost_tick_policy property of kvm-pit instead.\n");
3546 qdev_prop_register_global_list(kvm_pit_lost_tick_policy);
3547 break;
3549 case QEMU_OPTION_usb:
3550 olist = qemu_find_opts("machine");
3551 qemu_opts_parse(olist, "usb=on", 0);
3552 break;
3553 case QEMU_OPTION_usbdevice:
3554 olist = qemu_find_opts("machine");
3555 qemu_opts_parse(olist, "usb=on", 0);
3556 add_device_config(DEV_USB, optarg);
3557 break;
3558 case QEMU_OPTION_device:
3559 if (!qemu_opts_parse(qemu_find_opts("device"), optarg, 1)) {
3560 exit(1);
3562 break;
3563 case QEMU_OPTION_smp:
3564 if (!qemu_opts_parse(qemu_find_opts("smp-opts"), optarg, 1)) {
3565 exit(1);
3567 break;
3568 case QEMU_OPTION_vnc:
3569 #ifdef CONFIG_VNC
3570 display_remote++;
3571 vnc_display = optarg;
3572 #else
3573 fprintf(stderr, "VNC support is disabled\n");
3574 exit(1);
3575 #endif
3576 break;
3577 case QEMU_OPTION_no_acpi:
3578 acpi_enabled = 0;
3579 break;
3580 case QEMU_OPTION_no_hpet:
3581 no_hpet = 1;
3582 break;
3583 case QEMU_OPTION_balloon:
3584 if (balloon_parse(optarg) < 0) {
3585 fprintf(stderr, "Unknown -balloon argument %s\n", optarg);
3586 exit(1);
3588 break;
3589 case QEMU_OPTION_no_reboot:
3590 no_reboot = 1;
3591 break;
3592 case QEMU_OPTION_no_shutdown:
3593 no_shutdown = 1;
3594 break;
3595 case QEMU_OPTION_show_cursor:
3596 cursor_hide = 0;
3597 break;
3598 case QEMU_OPTION_uuid:
3599 if(qemu_uuid_parse(optarg, qemu_uuid) < 0) {
3600 fprintf(stderr, "Fail to parse UUID string."
3601 " Wrong format.\n");
3602 exit(1);
3604 qemu_uuid_set = true;
3605 break;
3606 case QEMU_OPTION_option_rom:
3607 if (nb_option_roms >= MAX_OPTION_ROMS) {
3608 fprintf(stderr, "Too many option ROMs\n");
3609 exit(1);
3611 opts = qemu_opts_parse(qemu_find_opts("option-rom"), optarg, 1);
3612 if (!opts) {
3613 exit(1);
3615 option_rom[nb_option_roms].name = qemu_opt_get(opts, "romfile");
3616 option_rom[nb_option_roms].bootindex =
3617 qemu_opt_get_number(opts, "bootindex", -1);
3618 if (!option_rom[nb_option_roms].name) {
3619 fprintf(stderr, "Option ROM file is not specified\n");
3620 exit(1);
3622 nb_option_roms++;
3623 break;
3624 case QEMU_OPTION_semihosting:
3625 semihosting_enabled = 1;
3626 break;
3627 case QEMU_OPTION_tdf:
3628 fprintf(stderr, "Warning: user space PIT time drift fix "
3629 "is no longer supported.\n");
3630 break;
3631 case QEMU_OPTION_name:
3632 opts = qemu_opts_parse(qemu_find_opts("name"), optarg, 1);
3633 if (!opts) {
3634 exit(1);
3636 break;
3637 case QEMU_OPTION_prom_env:
3638 if (nb_prom_envs >= MAX_PROM_ENVS) {
3639 fprintf(stderr, "Too many prom variables\n");
3640 exit(1);
3642 prom_envs[nb_prom_envs] = optarg;
3643 nb_prom_envs++;
3644 break;
3645 case QEMU_OPTION_old_param:
3646 old_param = 1;
3647 break;
3648 case QEMU_OPTION_clock:
3649 /* Clock options no longer exist. Keep this option for
3650 * backward compatibility.
3652 break;
3653 case QEMU_OPTION_startdate:
3654 configure_rtc_date_offset(optarg, 1);
3655 break;
3656 case QEMU_OPTION_rtc:
3657 opts = qemu_opts_parse(qemu_find_opts("rtc"), optarg, 0);
3658 if (!opts) {
3659 exit(1);
3661 configure_rtc(opts);
3662 break;
3663 case QEMU_OPTION_tb_size:
3664 tcg_tb_size = strtol(optarg, NULL, 0);
3665 if (tcg_tb_size < 0) {
3666 tcg_tb_size = 0;
3668 break;
3669 case QEMU_OPTION_icount:
3670 icount_opts = qemu_opts_parse(qemu_find_opts("icount"),
3671 optarg, 1);
3672 if (!icount_opts) {
3673 exit(1);
3675 break;
3676 case QEMU_OPTION_incoming:
3677 incoming = optarg;
3678 runstate_set(RUN_STATE_INMIGRATE);
3679 break;
3680 case QEMU_OPTION_nodefaults:
3681 has_defaults = 0;
3682 break;
3683 case QEMU_OPTION_xen_domid:
3684 if (!(xen_available())) {
3685 printf("Option %s not supported for this target\n", popt->name);
3686 exit(1);
3688 xen_domid = atoi(optarg);
3689 break;
3690 case QEMU_OPTION_xen_create:
3691 if (!(xen_available())) {
3692 printf("Option %s not supported for this target\n", popt->name);
3693 exit(1);
3695 xen_mode = XEN_CREATE;
3696 break;
3697 case QEMU_OPTION_xen_attach:
3698 if (!(xen_available())) {
3699 printf("Option %s not supported for this target\n", popt->name);
3700 exit(1);
3702 xen_mode = XEN_ATTACH;
3703 break;
3704 case QEMU_OPTION_trace:
3706 opts = qemu_opts_parse(qemu_find_opts("trace"), optarg, 0);
3707 if (!opts) {
3708 exit(1);
3710 trace_events = qemu_opt_get(opts, "events");
3711 trace_file = qemu_opt_get(opts, "file");
3712 break;
3714 case QEMU_OPTION_readconfig:
3716 int ret = qemu_read_config_file(optarg);
3717 if (ret < 0) {
3718 fprintf(stderr, "read config %s: %s\n", optarg,
3719 strerror(-ret));
3720 exit(1);
3722 break;
3724 case QEMU_OPTION_spice:
3725 olist = qemu_find_opts("spice");
3726 if (!olist) {
3727 fprintf(stderr, "spice is not supported by this qemu build.\n");
3728 exit(1);
3730 opts = qemu_opts_parse(olist, optarg, 0);
3731 if (!opts) {
3732 exit(1);
3734 display_remote++;
3735 break;
3736 case QEMU_OPTION_writeconfig:
3738 FILE *fp;
3739 if (strcmp(optarg, "-") == 0) {
3740 fp = stdout;
3741 } else {
3742 fp = fopen(optarg, "w");
3743 if (fp == NULL) {
3744 fprintf(stderr, "open %s: %s\n", optarg, strerror(errno));
3745 exit(1);
3748 qemu_config_write(fp);
3749 if (fp != stdout) {
3750 fclose(fp);
3752 break;
3754 case QEMU_OPTION_qtest:
3755 qtest_chrdev = optarg;
3756 break;
3757 case QEMU_OPTION_qtest_log:
3758 qtest_log = optarg;
3759 break;
3760 case QEMU_OPTION_sandbox:
3761 opts = qemu_opts_parse(qemu_find_opts("sandbox"), optarg, 1);
3762 if (!opts) {
3763 exit(1);
3765 break;
3766 case QEMU_OPTION_add_fd:
3767 #ifndef _WIN32
3768 opts = qemu_opts_parse(qemu_find_opts("add-fd"), optarg, 0);
3769 if (!opts) {
3770 exit(1);
3772 #else
3773 error_report("File descriptor passing is disabled on this "
3774 "platform");
3775 exit(1);
3776 #endif
3777 break;
3778 case QEMU_OPTION_object:
3779 opts = qemu_opts_parse(qemu_find_opts("object"), optarg, 1);
3780 if (!opts) {
3781 exit(1);
3783 break;
3784 case QEMU_OPTION_realtime:
3785 opts = qemu_opts_parse(qemu_find_opts("realtime"), optarg, 0);
3786 if (!opts) {
3787 exit(1);
3789 enable_mlock = qemu_opt_get_bool(opts, "mlock", true);
3790 break;
3791 case QEMU_OPTION_msg:
3792 opts = qemu_opts_parse(qemu_find_opts("msg"), optarg, 0);
3793 if (!opts) {
3794 exit(1);
3796 configure_msg(opts);
3797 break;
3798 case QEMU_OPTION_dump_vmstate:
3799 if (vmstate_dump_file) {
3800 fprintf(stderr, "qemu: only one '-dump-vmstate' "
3801 "option may be given\n");
3802 exit(1);
3804 vmstate_dump_file = fopen(optarg, "w");
3805 if (vmstate_dump_file == NULL) {
3806 fprintf(stderr, "open %s: %s\n", optarg, strerror(errno));
3807 exit(1);
3809 break;
3810 default:
3811 os_parse_cmd_args(popt->index, optarg);
3815 loc_set_none();
3817 os_daemonize();
3819 if (qemu_init_main_loop(&main_loop_err)) {
3820 error_report("%s", error_get_pretty(main_loop_err));
3821 exit(1);
3824 if (qemu_opts_foreach(qemu_find_opts("sandbox"), parse_sandbox, NULL, 0)) {
3825 exit(1);
3828 if (qemu_opts_foreach(qemu_find_opts("name"), parse_name, NULL, 1)) {
3829 exit(1);
3832 #ifndef _WIN32
3833 if (qemu_opts_foreach(qemu_find_opts("add-fd"), parse_add_fd, NULL, 1)) {
3834 exit(1);
3837 if (qemu_opts_foreach(qemu_find_opts("add-fd"), cleanup_add_fd, NULL, 1)) {
3838 exit(1);
3840 #endif
3842 if (machine_class == NULL) {
3843 fprintf(stderr, "No machine specified, and there is no default.\n"
3844 "Use -machine help to list supported machines!\n");
3845 exit(1);
3848 current_machine = MACHINE(object_new(object_class_get_name(
3849 OBJECT_CLASS(machine_class))));
3850 object_property_add_child(object_get_root(), "machine",
3851 OBJECT(current_machine), &error_abort);
3852 cpu_exec_init_all();
3854 if (machine_class->hw_version) {
3855 qemu_set_version(machine_class->hw_version);
3858 /* Init CPU def lists, based on config
3859 * - Must be called after all the qemu_read_config_file() calls
3860 * - Must be called before list_cpus()
3861 * - Must be called before machine->init()
3863 cpudef_init();
3865 if (cpu_model && is_help_option(cpu_model)) {
3866 list_cpus(stdout, &fprintf, cpu_model);
3867 exit(0);
3870 /* Open the logfile at this point, if necessary. We can't open the logfile
3871 * when encountering either of the logging options (-d or -D) because the
3872 * other one may be encountered later on the command line, changing the
3873 * location or level of logging.
3875 if (log_mask) {
3876 int mask;
3877 if (log_file) {
3878 qemu_set_log_filename(log_file);
3881 mask = qemu_str_to_log_mask(log_mask);
3882 if (!mask) {
3883 qemu_print_log_usage(stdout);
3884 exit(1);
3886 qemu_set_log(mask);
3889 if (!is_daemonized()) {
3890 if (!trace_init_backends(trace_events, trace_file)) {
3891 exit(1);
3895 /* If no data_dir is specified then try to find it relative to the
3896 executable path. */
3897 if (data_dir_idx < ARRAY_SIZE(data_dir)) {
3898 data_dir[data_dir_idx] = os_find_datadir();
3899 if (data_dir[data_dir_idx] != NULL) {
3900 data_dir_idx++;
3903 /* If all else fails use the install path specified when building. */
3904 if (data_dir_idx < ARRAY_SIZE(data_dir)) {
3905 data_dir[data_dir_idx++] = CONFIG_QEMU_DATADIR;
3908 smp_parse(qemu_opts_find(qemu_find_opts("smp-opts"), NULL));
3910 machine_class->max_cpus = machine_class->max_cpus ?: 1; /* Default to UP */
3911 if (smp_cpus > machine_class->max_cpus) {
3912 fprintf(stderr, "Number of SMP cpus requested (%d), exceeds max cpus "
3913 "supported by machine `%s' (%d)\n", smp_cpus,
3914 machine_class->name, machine_class->max_cpus);
3915 exit(1);
3919 * Get the default machine options from the machine if it is not already
3920 * specified either by the configuration file or by the command line.
3922 if (machine_class->default_machine_opts) {
3923 qemu_opts_set_defaults(qemu_find_opts("machine"),
3924 machine_class->default_machine_opts, 0);
3927 qemu_opts_foreach(qemu_find_opts("device"), default_driver_check, NULL, 0);
3928 qemu_opts_foreach(qemu_find_opts("global"), default_driver_check, NULL, 0);
3930 if (!vga_model && !default_vga) {
3931 vga_interface_type = VGA_DEVICE;
3933 if (!has_defaults || machine_class->no_serial) {
3934 default_serial = 0;
3936 if (!has_defaults || machine_class->no_parallel) {
3937 default_parallel = 0;
3939 if (!has_defaults || !machine_class->use_virtcon) {
3940 default_virtcon = 0;
3942 if (!has_defaults || !machine_class->use_sclp) {
3943 default_sclp = 0;
3945 if (!has_defaults || machine_class->no_floppy) {
3946 default_floppy = 0;
3948 if (!has_defaults || machine_class->no_cdrom) {
3949 default_cdrom = 0;
3951 if (!has_defaults || machine_class->no_sdcard) {
3952 default_sdcard = 0;
3954 if (!has_defaults) {
3955 default_monitor = 0;
3956 default_net = 0;
3957 default_vga = 0;
3960 if (is_daemonized()) {
3961 /* According to documentation and historically, -nographic redirects
3962 * serial port, parallel port and monitor to stdio, which does not work
3963 * with -daemonize. We can redirect these to null instead, but since
3964 * -nographic is legacy, let's just error out.
3965 * We disallow -nographic only if all other ports are not redirected
3966 * explicitly, to not break existing legacy setups which uses
3967 * -nographic _and_ redirects all ports explicitly - this is valid
3968 * usage, -nographic is just a no-op in this case.
3970 if (display_type == DT_NOGRAPHIC
3971 && (default_parallel || default_serial
3972 || default_monitor || default_virtcon)) {
3973 fprintf(stderr, "-nographic can not be used with -daemonize\n");
3974 exit(1);
3976 #ifdef CONFIG_CURSES
3977 if (display_type == DT_CURSES) {
3978 fprintf(stderr, "curses display can not be used with -daemonize\n");
3979 exit(1);
3981 #endif
3984 if (display_type == DT_NOGRAPHIC) {
3985 if (default_parallel)
3986 add_device_config(DEV_PARALLEL, "null");
3987 if (default_serial && default_monitor) {
3988 add_device_config(DEV_SERIAL, "mon:stdio");
3989 } else if (default_virtcon && default_monitor) {
3990 add_device_config(DEV_VIRTCON, "mon:stdio");
3991 } else if (default_sclp && default_monitor) {
3992 add_device_config(DEV_SCLP, "mon:stdio");
3993 } else {
3994 if (default_serial)
3995 add_device_config(DEV_SERIAL, "stdio");
3996 if (default_virtcon)
3997 add_device_config(DEV_VIRTCON, "stdio");
3998 if (default_sclp) {
3999 add_device_config(DEV_SCLP, "stdio");
4001 if (default_monitor)
4002 monitor_parse("stdio", "readline", false);
4004 } else {
4005 if (default_serial)
4006 add_device_config(DEV_SERIAL, "vc:80Cx24C");
4007 if (default_parallel)
4008 add_device_config(DEV_PARALLEL, "vc:80Cx24C");
4009 if (default_monitor)
4010 monitor_parse("vc:80Cx24C", "readline", false);
4011 if (default_virtcon)
4012 add_device_config(DEV_VIRTCON, "vc:80Cx24C");
4013 if (default_sclp) {
4014 add_device_config(DEV_SCLP, "vc:80Cx24C");
4018 if (display_type == DT_DEFAULT && !display_remote) {
4019 #if defined(CONFIG_GTK)
4020 display_type = DT_GTK;
4021 #elif defined(CONFIG_SDL) || defined(CONFIG_COCOA)
4022 display_type = DT_SDL;
4023 #elif defined(CONFIG_VNC)
4024 vnc_display = "localhost:0,to=99";
4025 show_vnc_port = 1;
4026 #else
4027 display_type = DT_NONE;
4028 #endif
4031 if ((no_frame || alt_grab || ctrl_grab) && display_type != DT_SDL) {
4032 fprintf(stderr, "-no-frame, -alt-grab and -ctrl-grab are only valid "
4033 "for SDL, ignoring option\n");
4035 if (no_quit && (display_type != DT_GTK && display_type != DT_SDL)) {
4036 fprintf(stderr, "-no-quit is only valid for GTK and SDL, "
4037 "ignoring option\n");
4040 #if defined(CONFIG_GTK)
4041 if (display_type == DT_GTK) {
4042 early_gtk_display_init();
4044 #endif
4046 socket_init();
4048 if (qemu_opts_foreach(qemu_find_opts("chardev"), chardev_init_func, NULL, 1) != 0)
4049 exit(1);
4050 #ifdef CONFIG_VIRTFS
4051 if (qemu_opts_foreach(qemu_find_opts("fsdev"), fsdev_init_func, NULL, 1) != 0) {
4052 exit(1);
4054 #endif
4056 if (pid_file && qemu_create_pidfile(pid_file) != 0) {
4057 fprintf(stderr, "Could not acquire pid file: %s\n", strerror(errno));
4058 exit(1);
4061 /* store value for the future use */
4062 qemu_opt_set_number(qemu_find_opts_singleton("memory"), "size", ram_size);
4064 if (qemu_opts_foreach(qemu_find_opts("device"), device_help_func, NULL, 0)
4065 != 0) {
4066 exit(0);
4069 if (qemu_opts_foreach(qemu_find_opts("object"),
4070 object_create, NULL, 0) != 0) {
4071 exit(1);
4074 machine_opts = qemu_get_machine_opts();
4075 if (qemu_opt_foreach(machine_opts, machine_set_property, current_machine,
4076 1) < 0) {
4077 object_unref(OBJECT(current_machine));
4078 exit(1);
4081 configure_accelerator(current_machine);
4083 if (qtest_chrdev) {
4084 Error *local_err = NULL;
4085 qtest_init(qtest_chrdev, qtest_log, &local_err);
4086 if (local_err) {
4087 error_report("%s", error_get_pretty(local_err));
4088 error_free(local_err);
4089 exit(1);
4093 machine_opts = qemu_get_machine_opts();
4094 kernel_filename = qemu_opt_get(machine_opts, "kernel");
4095 initrd_filename = qemu_opt_get(machine_opts, "initrd");
4096 kernel_cmdline = qemu_opt_get(machine_opts, "append");
4097 bios_name = qemu_opt_get(machine_opts, "firmware");
4099 boot_order = machine_class->default_boot_order;
4100 opts = qemu_opts_find(qemu_find_opts("boot-opts"), NULL);
4101 if (opts) {
4102 char *normal_boot_order;
4103 const char *order, *once;
4105 order = qemu_opt_get(opts, "order");
4106 if (order) {
4107 validate_bootdevices(order);
4108 boot_order = order;
4111 once = qemu_opt_get(opts, "once");
4112 if (once) {
4113 validate_bootdevices(once);
4114 normal_boot_order = g_strdup(boot_order);
4115 boot_order = once;
4116 qemu_register_reset(restore_boot_order, normal_boot_order);
4119 boot_menu = qemu_opt_get_bool(opts, "menu", boot_menu);
4120 boot_strict = qemu_opt_get_bool(opts, "strict", false);
4123 if (!kernel_cmdline) {
4124 kernel_cmdline = "";
4125 current_machine->kernel_cmdline = (char *)kernel_cmdline;
4128 linux_boot = (kernel_filename != NULL);
4130 if (!linux_boot && *kernel_cmdline != '\0') {
4131 fprintf(stderr, "-append only allowed with -kernel option\n");
4132 exit(1);
4135 if (!linux_boot && initrd_filename != NULL) {
4136 fprintf(stderr, "-initrd only allowed with -kernel option\n");
4137 exit(1);
4140 if (!linux_boot && qemu_opt_get(machine_opts, "dtb")) {
4141 fprintf(stderr, "-dtb only allowed with -kernel option\n");
4142 exit(1);
4145 os_set_line_buffering();
4147 qemu_init_cpu_loop();
4148 qemu_mutex_lock_iothread();
4150 #ifdef CONFIG_SPICE
4151 /* spice needs the timers to be initialized by this point */
4152 qemu_spice_init();
4153 #endif
4155 cpu_ticks_init();
4156 if (icount_opts) {
4157 if (kvm_enabled() || xen_enabled()) {
4158 fprintf(stderr, "-icount is not allowed with kvm or xen\n");
4159 exit(1);
4161 configure_icount(icount_opts, &error_abort);
4162 qemu_opts_del(icount_opts);
4165 /* clean up network at qemu process termination */
4166 atexit(&net_cleanup);
4168 if (net_init_clients() < 0) {
4169 exit(1);
4172 #ifdef CONFIG_TPM
4173 if (tpm_init() < 0) {
4174 exit(1);
4176 #endif
4178 /* init the bluetooth world */
4179 if (foreach_device_config(DEV_BT, bt_parse))
4180 exit(1);
4182 if (!xen_enabled()) {
4183 /* On 32-bit hosts, QEMU is limited by virtual address space */
4184 if (ram_size > (2047 << 20) && HOST_LONG_BITS == 32) {
4185 fprintf(stderr, "qemu: at most 2047 MB RAM can be simulated\n");
4186 exit(1);
4190 blk_mig_init();
4191 ram_mig_init();
4193 /* If the currently selected machine wishes to override the units-per-bus
4194 * property of its default HBA interface type, do so now. */
4195 if (machine_class->units_per_default_bus) {
4196 override_max_devs(machine_class->block_default_type,
4197 machine_class->units_per_default_bus);
4200 /* open the virtual block devices */
4201 if (snapshot)
4202 qemu_opts_foreach(qemu_find_opts("drive"), drive_enable_snapshot, NULL, 0);
4203 if (qemu_opts_foreach(qemu_find_opts("drive"), drive_init_func,
4204 &machine_class->block_default_type, 1) != 0) {
4205 exit(1);
4208 default_drive(default_cdrom, snapshot, machine_class->block_default_type, 2,
4209 CDROM_OPTS);
4210 default_drive(default_floppy, snapshot, IF_FLOPPY, 0, FD_OPTS);
4211 default_drive(default_sdcard, snapshot, IF_SD, 0, SD_OPTS);
4213 if (qemu_opts_foreach(qemu_find_opts("numa"), numa_init_func,
4214 NULL, 1) != 0) {
4215 exit(1);
4218 set_numa_nodes();
4220 if (qemu_opts_foreach(qemu_find_opts("mon"), mon_init_func, NULL, 1) != 0) {
4221 exit(1);
4224 if (foreach_device_config(DEV_SERIAL, serial_parse) < 0)
4225 exit(1);
4226 if (foreach_device_config(DEV_PARALLEL, parallel_parse) < 0)
4227 exit(1);
4228 if (foreach_device_config(DEV_VIRTCON, virtcon_parse) < 0)
4229 exit(1);
4230 if (foreach_device_config(DEV_SCLP, sclp_parse) < 0) {
4231 exit(1);
4233 if (foreach_device_config(DEV_DEBUGCON, debugcon_parse) < 0)
4234 exit(1);
4236 /* If no default VGA is requested, the default is "none". */
4237 if (default_vga) {
4238 if (machine_class->default_display) {
4239 vga_model = machine_class->default_display;
4240 } else if (cirrus_vga_available()) {
4241 vga_model = "cirrus";
4242 } else if (vga_available()) {
4243 vga_model = "std";
4246 if (vga_model) {
4247 select_vgahw(vga_model);
4250 if (watchdog) {
4251 i = select_watchdog(watchdog);
4252 if (i > 0)
4253 exit (i == 1 ? 1 : 0);
4256 if (machine_class->compat_props) {
4257 qdev_prop_register_global_list(machine_class->compat_props);
4259 qemu_add_globals();
4261 qdev_machine_init();
4263 current_machine->ram_size = ram_size;
4264 current_machine->maxram_size = maxram_size;
4265 current_machine->ram_slots = ram_slots;
4266 current_machine->boot_order = boot_order;
4267 current_machine->cpu_model = cpu_model;
4269 machine_class->init(current_machine);
4271 realtime_init();
4273 audio_init();
4275 cpu_synchronize_all_post_init();
4277 set_numa_modes();
4279 /* init USB devices */
4280 if (usb_enabled(false)) {
4281 if (foreach_device_config(DEV_USB, usb_parse) < 0)
4282 exit(1);
4285 /* init generic devices */
4286 if (qemu_opts_foreach(qemu_find_opts("device"), device_init_func, NULL, 1) != 0)
4287 exit(1);
4289 /* Did we create any drives that we failed to create a device for? */
4290 drive_check_orphaned();
4292 net_check_clients();
4294 ds = init_displaystate();
4296 /* init local displays */
4297 switch (display_type) {
4298 case DT_NOGRAPHIC:
4299 (void)ds; /* avoid warning if no display is configured */
4300 break;
4301 #if defined(CONFIG_CURSES)
4302 case DT_CURSES:
4303 curses_display_init(ds, full_screen);
4304 break;
4305 #endif
4306 #if defined(CONFIG_SDL)
4307 case DT_SDL:
4308 sdl_display_init(ds, full_screen, no_frame);
4309 break;
4310 #elif defined(CONFIG_COCOA)
4311 case DT_SDL:
4312 cocoa_display_init(ds, full_screen);
4313 break;
4314 #endif
4315 #if defined(CONFIG_GTK)
4316 case DT_GTK:
4317 gtk_display_init(ds, full_screen, grab_on_hover);
4318 break;
4319 #endif
4320 default:
4321 break;
4324 /* must be after terminal init, SDL library changes signal handlers */
4325 os_setup_signal_handling();
4327 #ifdef CONFIG_VNC
4328 /* init remote displays */
4329 if (vnc_display) {
4330 Error *local_err = NULL;
4331 vnc_display_init(ds);
4332 vnc_display_open(ds, vnc_display, &local_err);
4333 if (local_err != NULL) {
4334 error_report("Failed to start VNC server on `%s': %s",
4335 vnc_display, error_get_pretty(local_err));
4336 error_free(local_err);
4337 exit(1);
4340 if (show_vnc_port) {
4341 printf("VNC server running on `%s'\n", vnc_display_local_addr(ds));
4344 #endif
4345 #ifdef CONFIG_SPICE
4346 if (using_spice) {
4347 qemu_spice_display_init();
4349 #endif
4351 if (foreach_device_config(DEV_GDB, gdbserver_start) < 0) {
4352 exit(1);
4355 qdev_machine_creation_done();
4357 if (rom_load_all() != 0) {
4358 fprintf(stderr, "rom loading failed\n");
4359 exit(1);
4362 /* TODO: once all bus devices are qdevified, this should be done
4363 * when bus is created by qdev.c */
4364 qemu_register_reset(qbus_reset_all_fn, sysbus_get_default());
4365 qemu_run_machine_init_done_notifiers();
4367 /* Done notifiers can load ROMs */
4368 rom_load_done();
4370 qemu_system_reset(VMRESET_SILENT);
4371 if (loadvm) {
4372 if (load_vmstate(loadvm) < 0) {
4373 autostart = 0;
4377 qdev_prop_check_globals();
4378 if (vmstate_dump_file) {
4379 /* dump and exit */
4380 dump_vmstate_json_to_file(vmstate_dump_file);
4381 return 0;
4384 if (incoming) {
4385 Error *local_err = NULL;
4386 qemu_start_incoming_migration(incoming, &local_err);
4387 if (local_err) {
4388 error_report("-incoming %s: %s", incoming,
4389 error_get_pretty(local_err));
4390 error_free(local_err);
4391 exit(1);
4393 } else if (autostart) {
4394 vm_start();
4397 os_setup_post();
4399 if (is_daemonized()) {
4400 if (!trace_init_backends(trace_events, trace_file)) {
4401 exit(1);
4405 main_loop();
4406 bdrv_close_all();
4407 pause_all_vcpus();
4408 res_free();
4409 #ifdef CONFIG_TPM
4410 tpm_cleanup();
4411 #endif
4413 return 0;