input: qapi: add unmapped key
[qemu.git] / vl.c
blob685a7a9f45d96daea84aa501cf44101a0ce5c0cc
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 "hw/hw.h"
62 #include "hw/boards.h"
63 #include "hw/usb.h"
64 #include "hw/pcmcia.h"
65 #include "hw/i386/pc.h"
66 #include "hw/isa/isa.h"
67 #include "hw/bt.h"
68 #include "sysemu/watchdog.h"
69 #include "hw/i386/smbios.h"
70 #include "hw/xen/xen.h"
71 #include "hw/qdev.h"
72 #include "hw/loader.h"
73 #include "monitor/qdev.h"
74 #include "sysemu/bt.h"
75 #include "net/net.h"
76 #include "net/slirp.h"
77 #include "monitor/monitor.h"
78 #include "ui/console.h"
79 #include "sysemu/sysemu.h"
80 #include "exec/gdbstub.h"
81 #include "qemu/timer.h"
82 #include "sysemu/char.h"
83 #include "qemu/bitmap.h"
84 #include "qemu/cache-utils.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"
106 #include "qemu/sockets.h"
108 #include "slirp/libslirp.h"
110 #include "trace.h"
111 #include "trace/control.h"
112 #include "qemu/queue.h"
113 #include "sysemu/cpus.h"
114 #include "sysemu/arch_init.h"
115 #include "qemu/osdep.h"
117 #include "ui/qemu-spice.h"
118 #include "qapi/string-input-visitor.h"
119 #include "qom/object_interfaces.h"
121 #define DEFAULT_RAM_SIZE 128
123 #define MAX_VIRTIO_CONSOLES 1
124 #define MAX_SCLP_CONSOLES 1
126 static const char *data_dir[16];
127 static int data_dir_idx;
128 const char *bios_name = NULL;
129 enum vga_retrace_method vga_retrace_method = VGA_RETRACE_DUMB;
130 DisplayType display_type = DT_DEFAULT;
131 static int display_remote;
132 const char* keyboard_layout = NULL;
133 ram_addr_t ram_size;
134 const char *mem_path = NULL;
135 int mem_prealloc = 0; /* force preallocation of physical target memory */
136 int nb_nics;
137 NICInfo nd_table[MAX_NICS];
138 int autostart;
139 static int rtc_utc = 1;
140 static int rtc_date_offset = -1; /* -1 means no change */
141 QEMUClockType rtc_clock;
142 int vga_interface_type = VGA_NONE;
143 static int full_screen = 0;
144 static int no_frame = 0;
145 int no_quit = 0;
146 CharDriverState *serial_hds[MAX_SERIAL_PORTS];
147 CharDriverState *parallel_hds[MAX_PARALLEL_PORTS];
148 CharDriverState *virtcon_hds[MAX_VIRTIO_CONSOLES];
149 CharDriverState *sclp_hds[MAX_SCLP_CONSOLES];
150 int win2k_install_hack = 0;
151 int singlestep = 0;
152 int smp_cpus = 1;
153 int max_cpus = 0;
154 int smp_cores = 1;
155 int smp_threads = 1;
156 #ifdef CONFIG_VNC
157 const char *vnc_display;
158 #endif
159 int acpi_enabled = 1;
160 int no_hpet = 0;
161 int fd_bootchk = 1;
162 static int no_reboot;
163 int no_shutdown = 0;
164 int cursor_hide = 1;
165 int graphic_rotate = 0;
166 const char *watchdog;
167 QEMUOptionRom option_rom[MAX_OPTION_ROMS];
168 int nb_option_roms;
169 int semihosting_enabled = 0;
170 int old_param = 0;
171 const char *qemu_name;
172 int alt_grab = 0;
173 int ctrl_grab = 0;
174 unsigned int nb_prom_envs = 0;
175 const char *prom_envs[MAX_PROM_ENVS];
176 int boot_menu;
177 static bool boot_strict;
178 uint8_t *boot_splash_filedata;
179 size_t boot_splash_filedata_size;
180 uint8_t qemu_extra_params_fw[2];
182 typedef struct FWBootEntry FWBootEntry;
184 struct FWBootEntry {
185 QTAILQ_ENTRY(FWBootEntry) link;
186 int32_t bootindex;
187 DeviceState *dev;
188 char *suffix;
191 static QTAILQ_HEAD(, FWBootEntry) fw_boot_order =
192 QTAILQ_HEAD_INITIALIZER(fw_boot_order);
194 int nb_numa_nodes;
195 uint64_t node_mem[MAX_NODES];
196 unsigned long *node_cpumask[MAX_NODES];
198 uint8_t qemu_uuid[16];
199 bool qemu_uuid_set;
201 static QEMUBootSetHandler *boot_set_handler;
202 static void *boot_set_opaque;
204 static NotifierList exit_notifiers =
205 NOTIFIER_LIST_INITIALIZER(exit_notifiers);
207 static NotifierList machine_init_done_notifiers =
208 NOTIFIER_LIST_INITIALIZER(machine_init_done_notifiers);
210 static bool tcg_allowed = true;
211 bool xen_allowed;
212 uint32_t xen_domid;
213 enum xen_mode xen_mode = XEN_EMULATE;
214 static int tcg_tb_size;
216 static int default_serial = 1;
217 static int default_parallel = 1;
218 static int default_virtcon = 1;
219 static int default_sclp = 1;
220 static int default_monitor = 1;
221 static int default_floppy = 1;
222 static int default_cdrom = 1;
223 static int default_sdcard = 1;
224 static int default_vga = 1;
226 static struct {
227 const char *driver;
228 int *flag;
229 } default_list[] = {
230 { .driver = "isa-serial", .flag = &default_serial },
231 { .driver = "isa-parallel", .flag = &default_parallel },
232 { .driver = "isa-fdc", .flag = &default_floppy },
233 { .driver = "ide-cd", .flag = &default_cdrom },
234 { .driver = "ide-hd", .flag = &default_cdrom },
235 { .driver = "ide-drive", .flag = &default_cdrom },
236 { .driver = "scsi-cd", .flag = &default_cdrom },
237 { .driver = "virtio-serial-pci", .flag = &default_virtcon },
238 { .driver = "virtio-serial-s390", .flag = &default_virtcon },
239 { .driver = "virtio-serial", .flag = &default_virtcon },
240 { .driver = "VGA", .flag = &default_vga },
241 { .driver = "isa-vga", .flag = &default_vga },
242 { .driver = "cirrus-vga", .flag = &default_vga },
243 { .driver = "isa-cirrus-vga", .flag = &default_vga },
244 { .driver = "vmware-svga", .flag = &default_vga },
245 { .driver = "qxl-vga", .flag = &default_vga },
248 static QemuOptsList qemu_rtc_opts = {
249 .name = "rtc",
250 .head = QTAILQ_HEAD_INITIALIZER(qemu_rtc_opts.head),
251 .desc = {
253 .name = "base",
254 .type = QEMU_OPT_STRING,
256 .name = "clock",
257 .type = QEMU_OPT_STRING,
259 .name = "driftfix",
260 .type = QEMU_OPT_STRING,
262 { /* end of list */ }
266 static QemuOptsList qemu_sandbox_opts = {
267 .name = "sandbox",
268 .implied_opt_name = "enable",
269 .head = QTAILQ_HEAD_INITIALIZER(qemu_sandbox_opts.head),
270 .desc = {
272 .name = "enable",
273 .type = QEMU_OPT_BOOL,
275 { /* end of list */ }
279 static QemuOptsList qemu_trace_opts = {
280 .name = "trace",
281 .implied_opt_name = "trace",
282 .head = QTAILQ_HEAD_INITIALIZER(qemu_trace_opts.head),
283 .desc = {
285 .name = "events",
286 .type = QEMU_OPT_STRING,
288 .name = "file",
289 .type = QEMU_OPT_STRING,
291 { /* end of list */ }
295 static QemuOptsList qemu_option_rom_opts = {
296 .name = "option-rom",
297 .implied_opt_name = "romfile",
298 .head = QTAILQ_HEAD_INITIALIZER(qemu_option_rom_opts.head),
299 .desc = {
301 .name = "bootindex",
302 .type = QEMU_OPT_NUMBER,
303 }, {
304 .name = "romfile",
305 .type = QEMU_OPT_STRING,
307 { /* end of list */ }
311 static QemuOptsList qemu_machine_opts = {
312 .name = "machine",
313 .implied_opt_name = "type",
314 .merge_lists = true,
315 .head = QTAILQ_HEAD_INITIALIZER(qemu_machine_opts.head),
316 .desc = {
318 .name = "type",
319 .type = QEMU_OPT_STRING,
320 .help = "emulated machine"
321 }, {
322 .name = "accel",
323 .type = QEMU_OPT_STRING,
324 .help = "accelerator list",
325 }, {
326 .name = "kernel_irqchip",
327 .type = QEMU_OPT_BOOL,
328 .help = "use KVM in-kernel irqchip",
329 }, {
330 .name = "kvm_shadow_mem",
331 .type = QEMU_OPT_SIZE,
332 .help = "KVM shadow MMU size",
333 }, {
334 .name = "kernel",
335 .type = QEMU_OPT_STRING,
336 .help = "Linux kernel image file",
337 }, {
338 .name = "initrd",
339 .type = QEMU_OPT_STRING,
340 .help = "Linux initial ramdisk file",
341 }, {
342 .name = "append",
343 .type = QEMU_OPT_STRING,
344 .help = "Linux kernel command line",
345 }, {
346 .name = "dtb",
347 .type = QEMU_OPT_STRING,
348 .help = "Linux kernel device tree file",
349 }, {
350 .name = "dumpdtb",
351 .type = QEMU_OPT_STRING,
352 .help = "Dump current dtb to a file and quit",
353 }, {
354 .name = "phandle_start",
355 .type = QEMU_OPT_NUMBER,
356 .help = "The first phandle ID we may generate dynamically",
357 }, {
358 .name = "dt_compatible",
359 .type = QEMU_OPT_STRING,
360 .help = "Overrides the \"compatible\" property of the dt root node",
361 }, {
362 .name = "dump-guest-core",
363 .type = QEMU_OPT_BOOL,
364 .help = "Include guest memory in a core dump",
365 }, {
366 .name = "mem-merge",
367 .type = QEMU_OPT_BOOL,
368 .help = "enable/disable memory merge support",
370 .name = "usb",
371 .type = QEMU_OPT_BOOL,
372 .help = "Set on/off to enable/disable usb",
374 .name = "firmware",
375 .type = QEMU_OPT_STRING,
376 .help = "firmware image",
378 { /* End of list */ }
382 static QemuOptsList qemu_boot_opts = {
383 .name = "boot-opts",
384 .implied_opt_name = "order",
385 .merge_lists = true,
386 .head = QTAILQ_HEAD_INITIALIZER(qemu_boot_opts.head),
387 .desc = {
389 .name = "order",
390 .type = QEMU_OPT_STRING,
391 }, {
392 .name = "once",
393 .type = QEMU_OPT_STRING,
394 }, {
395 .name = "menu",
396 .type = QEMU_OPT_BOOL,
397 }, {
398 .name = "splash",
399 .type = QEMU_OPT_STRING,
400 }, {
401 .name = "splash-time",
402 .type = QEMU_OPT_STRING,
403 }, {
404 .name = "reboot-timeout",
405 .type = QEMU_OPT_STRING,
406 }, {
407 .name = "strict",
408 .type = QEMU_OPT_BOOL,
410 { /*End of list */ }
414 static QemuOptsList qemu_add_fd_opts = {
415 .name = "add-fd",
416 .head = QTAILQ_HEAD_INITIALIZER(qemu_add_fd_opts.head),
417 .desc = {
419 .name = "fd",
420 .type = QEMU_OPT_NUMBER,
421 .help = "file descriptor of which a duplicate is added to fd set",
423 .name = "set",
424 .type = QEMU_OPT_NUMBER,
425 .help = "ID of the fd set to add fd to",
427 .name = "opaque",
428 .type = QEMU_OPT_STRING,
429 .help = "free-form string used to describe fd",
431 { /* end of list */ }
435 static QemuOptsList qemu_object_opts = {
436 .name = "object",
437 .implied_opt_name = "qom-type",
438 .head = QTAILQ_HEAD_INITIALIZER(qemu_object_opts.head),
439 .desc = {
444 static QemuOptsList qemu_tpmdev_opts = {
445 .name = "tpmdev",
446 .implied_opt_name = "type",
447 .head = QTAILQ_HEAD_INITIALIZER(qemu_tpmdev_opts.head),
448 .desc = {
449 /* options are defined in the TPM backends */
450 { /* end of list */ }
454 static QemuOptsList qemu_realtime_opts = {
455 .name = "realtime",
456 .head = QTAILQ_HEAD_INITIALIZER(qemu_realtime_opts.head),
457 .desc = {
459 .name = "mlock",
460 .type = QEMU_OPT_BOOL,
462 { /* end of list */ }
466 static QemuOptsList qemu_msg_opts = {
467 .name = "msg",
468 .head = QTAILQ_HEAD_INITIALIZER(qemu_msg_opts.head),
469 .desc = {
471 .name = "timestamp",
472 .type = QEMU_OPT_BOOL,
474 { /* end of list */ }
479 * Get machine options
481 * Returns: machine options (never null).
483 QemuOpts *qemu_get_machine_opts(void)
485 QemuOptsList *list;
486 QemuOpts *opts;
488 list = qemu_find_opts("machine");
489 assert(list);
490 opts = qemu_opts_find(list, NULL);
491 if (!opts) {
492 opts = qemu_opts_create(list, NULL, 0, &error_abort);
494 return opts;
497 const char *qemu_get_vm_name(void)
499 return qemu_name;
502 static void res_free(void)
504 if (boot_splash_filedata != NULL) {
505 g_free(boot_splash_filedata);
506 boot_splash_filedata = NULL;
510 static int default_driver_check(QemuOpts *opts, void *opaque)
512 const char *driver = qemu_opt_get(opts, "driver");
513 int i;
515 if (!driver)
516 return 0;
517 for (i = 0; i < ARRAY_SIZE(default_list); i++) {
518 if (strcmp(default_list[i].driver, driver) != 0)
519 continue;
520 *(default_list[i].flag) = 0;
522 return 0;
525 /***********************************************************/
526 /* QEMU state */
528 static RunState current_run_state = RUN_STATE_PRELAUNCH;
530 typedef struct {
531 RunState from;
532 RunState to;
533 } RunStateTransition;
535 static const RunStateTransition runstate_transitions_def[] = {
536 /* from -> to */
537 { RUN_STATE_DEBUG, RUN_STATE_RUNNING },
538 { RUN_STATE_DEBUG, RUN_STATE_FINISH_MIGRATE },
540 { RUN_STATE_INMIGRATE, RUN_STATE_RUNNING },
541 { RUN_STATE_INMIGRATE, RUN_STATE_PAUSED },
543 { RUN_STATE_INTERNAL_ERROR, RUN_STATE_PAUSED },
544 { RUN_STATE_INTERNAL_ERROR, RUN_STATE_FINISH_MIGRATE },
546 { RUN_STATE_IO_ERROR, RUN_STATE_RUNNING },
547 { RUN_STATE_IO_ERROR, RUN_STATE_FINISH_MIGRATE },
549 { RUN_STATE_PAUSED, RUN_STATE_RUNNING },
550 { RUN_STATE_PAUSED, RUN_STATE_FINISH_MIGRATE },
552 { RUN_STATE_POSTMIGRATE, RUN_STATE_RUNNING },
553 { RUN_STATE_POSTMIGRATE, RUN_STATE_FINISH_MIGRATE },
555 { RUN_STATE_PRELAUNCH, RUN_STATE_RUNNING },
556 { RUN_STATE_PRELAUNCH, RUN_STATE_FINISH_MIGRATE },
557 { RUN_STATE_PRELAUNCH, RUN_STATE_INMIGRATE },
559 { RUN_STATE_FINISH_MIGRATE, RUN_STATE_RUNNING },
560 { RUN_STATE_FINISH_MIGRATE, RUN_STATE_POSTMIGRATE },
562 { RUN_STATE_RESTORE_VM, RUN_STATE_RUNNING },
564 { RUN_STATE_RUNNING, RUN_STATE_DEBUG },
565 { RUN_STATE_RUNNING, RUN_STATE_INTERNAL_ERROR },
566 { RUN_STATE_RUNNING, RUN_STATE_IO_ERROR },
567 { RUN_STATE_RUNNING, RUN_STATE_PAUSED },
568 { RUN_STATE_RUNNING, RUN_STATE_FINISH_MIGRATE },
569 { RUN_STATE_RUNNING, RUN_STATE_RESTORE_VM },
570 { RUN_STATE_RUNNING, RUN_STATE_SAVE_VM },
571 { RUN_STATE_RUNNING, RUN_STATE_SHUTDOWN },
572 { RUN_STATE_RUNNING, RUN_STATE_WATCHDOG },
573 { RUN_STATE_RUNNING, RUN_STATE_GUEST_PANICKED },
575 { RUN_STATE_SAVE_VM, RUN_STATE_RUNNING },
577 { RUN_STATE_SHUTDOWN, RUN_STATE_PAUSED },
578 { RUN_STATE_SHUTDOWN, RUN_STATE_FINISH_MIGRATE },
580 { RUN_STATE_DEBUG, RUN_STATE_SUSPENDED },
581 { RUN_STATE_RUNNING, RUN_STATE_SUSPENDED },
582 { RUN_STATE_SUSPENDED, RUN_STATE_RUNNING },
583 { RUN_STATE_SUSPENDED, RUN_STATE_FINISH_MIGRATE },
585 { RUN_STATE_WATCHDOG, RUN_STATE_RUNNING },
586 { RUN_STATE_WATCHDOG, RUN_STATE_FINISH_MIGRATE },
588 { RUN_STATE_GUEST_PANICKED, RUN_STATE_RUNNING },
589 { RUN_STATE_GUEST_PANICKED, RUN_STATE_FINISH_MIGRATE },
591 { RUN_STATE_MAX, RUN_STATE_MAX },
594 static bool runstate_valid_transitions[RUN_STATE_MAX][RUN_STATE_MAX];
596 bool runstate_check(RunState state)
598 return current_run_state == state;
601 static void runstate_init(void)
603 const RunStateTransition *p;
605 memset(&runstate_valid_transitions, 0, sizeof(runstate_valid_transitions));
607 for (p = &runstate_transitions_def[0]; p->from != RUN_STATE_MAX; p++) {
608 runstate_valid_transitions[p->from][p->to] = true;
612 /* This function will abort() on invalid state transitions */
613 void runstate_set(RunState new_state)
615 assert(new_state < RUN_STATE_MAX);
617 if (!runstate_valid_transitions[current_run_state][new_state]) {
618 fprintf(stderr, "ERROR: invalid runstate transition: '%s' -> '%s'\n",
619 RunState_lookup[current_run_state],
620 RunState_lookup[new_state]);
621 abort();
623 trace_runstate_set(new_state);
624 current_run_state = new_state;
627 int runstate_is_running(void)
629 return runstate_check(RUN_STATE_RUNNING);
632 bool runstate_needs_reset(void)
634 return runstate_check(RUN_STATE_INTERNAL_ERROR) ||
635 runstate_check(RUN_STATE_SHUTDOWN);
638 StatusInfo *qmp_query_status(Error **errp)
640 StatusInfo *info = g_malloc0(sizeof(*info));
642 info->running = runstate_is_running();
643 info->singlestep = singlestep;
644 info->status = current_run_state;
646 return info;
649 /***********************************************************/
650 /* real time host monotonic timer */
652 /***********************************************************/
653 /* host time/date access */
654 void qemu_get_timedate(struct tm *tm, int offset)
656 time_t ti;
658 time(&ti);
659 ti += offset;
660 if (rtc_date_offset == -1) {
661 if (rtc_utc)
662 gmtime_r(&ti, tm);
663 else
664 localtime_r(&ti, tm);
665 } else {
666 ti -= rtc_date_offset;
667 gmtime_r(&ti, tm);
671 int qemu_timedate_diff(struct tm *tm)
673 time_t seconds;
675 if (rtc_date_offset == -1)
676 if (rtc_utc)
677 seconds = mktimegm(tm);
678 else {
679 struct tm tmp = *tm;
680 tmp.tm_isdst = -1; /* use timezone to figure it out */
681 seconds = mktime(&tmp);
683 else
684 seconds = mktimegm(tm) + rtc_date_offset;
686 return seconds - time(NULL);
689 void rtc_change_mon_event(struct tm *tm)
691 QObject *data;
693 data = qobject_from_jsonf("{ 'offset': %d }", qemu_timedate_diff(tm));
694 monitor_protocol_event(QEVENT_RTC_CHANGE, data);
695 qobject_decref(data);
698 static void configure_rtc_date_offset(const char *startdate, int legacy)
700 time_t rtc_start_date;
701 struct tm tm;
703 if (!strcmp(startdate, "now") && legacy) {
704 rtc_date_offset = -1;
705 } else {
706 if (sscanf(startdate, "%d-%d-%dT%d:%d:%d",
707 &tm.tm_year,
708 &tm.tm_mon,
709 &tm.tm_mday,
710 &tm.tm_hour,
711 &tm.tm_min,
712 &tm.tm_sec) == 6) {
713 /* OK */
714 } else if (sscanf(startdate, "%d-%d-%d",
715 &tm.tm_year,
716 &tm.tm_mon,
717 &tm.tm_mday) == 3) {
718 tm.tm_hour = 0;
719 tm.tm_min = 0;
720 tm.tm_sec = 0;
721 } else {
722 goto date_fail;
724 tm.tm_year -= 1900;
725 tm.tm_mon--;
726 rtc_start_date = mktimegm(&tm);
727 if (rtc_start_date == -1) {
728 date_fail:
729 fprintf(stderr, "Invalid date format. Valid formats are:\n"
730 "'2006-06-17T16:01:21' or '2006-06-17'\n");
731 exit(1);
733 rtc_date_offset = time(NULL) - rtc_start_date;
737 static void configure_rtc(QemuOpts *opts)
739 const char *value;
741 value = qemu_opt_get(opts, "base");
742 if (value) {
743 if (!strcmp(value, "utc")) {
744 rtc_utc = 1;
745 } else if (!strcmp(value, "localtime")) {
746 rtc_utc = 0;
747 } else {
748 configure_rtc_date_offset(value, 0);
751 value = qemu_opt_get(opts, "clock");
752 if (value) {
753 if (!strcmp(value, "host")) {
754 rtc_clock = QEMU_CLOCK_HOST;
755 } else if (!strcmp(value, "rt")) {
756 rtc_clock = QEMU_CLOCK_REALTIME;
757 } else if (!strcmp(value, "vm")) {
758 rtc_clock = QEMU_CLOCK_VIRTUAL;
759 } else {
760 fprintf(stderr, "qemu: invalid option value '%s'\n", value);
761 exit(1);
764 value = qemu_opt_get(opts, "driftfix");
765 if (value) {
766 if (!strcmp(value, "slew")) {
767 static GlobalProperty slew_lost_ticks[] = {
769 .driver = "mc146818rtc",
770 .property = "lost_tick_policy",
771 .value = "slew",
773 { /* end of list */ }
776 qdev_prop_register_global_list(slew_lost_ticks);
777 } else if (!strcmp(value, "none")) {
778 /* discard is default */
779 } else {
780 fprintf(stderr, "qemu: invalid option value '%s'\n", value);
781 exit(1);
786 /***********************************************************/
787 /* Bluetooth support */
788 static int nb_hcis;
789 static int cur_hci;
790 static struct HCIInfo *hci_table[MAX_NICS];
792 struct HCIInfo *qemu_next_hci(void)
794 if (cur_hci == nb_hcis)
795 return &null_hci;
797 return hci_table[cur_hci++];
800 static int bt_hci_parse(const char *str)
802 struct HCIInfo *hci;
803 bdaddr_t bdaddr;
805 if (nb_hcis >= MAX_NICS) {
806 fprintf(stderr, "qemu: Too many bluetooth HCIs (max %i).\n", MAX_NICS);
807 return -1;
810 hci = hci_init(str);
811 if (!hci)
812 return -1;
814 bdaddr.b[0] = 0x52;
815 bdaddr.b[1] = 0x54;
816 bdaddr.b[2] = 0x00;
817 bdaddr.b[3] = 0x12;
818 bdaddr.b[4] = 0x34;
819 bdaddr.b[5] = 0x56 + nb_hcis;
820 hci->bdaddr_set(hci, bdaddr.b);
822 hci_table[nb_hcis++] = hci;
824 return 0;
827 static void bt_vhci_add(int vlan_id)
829 struct bt_scatternet_s *vlan = qemu_find_bt_vlan(vlan_id);
831 if (!vlan->slave)
832 fprintf(stderr, "qemu: warning: adding a VHCI to "
833 "an empty scatternet %i\n", vlan_id);
835 bt_vhci_init(bt_new_hci(vlan));
838 static struct bt_device_s *bt_device_add(const char *opt)
840 struct bt_scatternet_s *vlan;
841 int vlan_id = 0;
842 char *endp = strstr(opt, ",vlan=");
843 int len = (endp ? endp - opt : strlen(opt)) + 1;
844 char devname[10];
846 pstrcpy(devname, MIN(sizeof(devname), len), opt);
848 if (endp) {
849 vlan_id = strtol(endp + 6, &endp, 0);
850 if (*endp) {
851 fprintf(stderr, "qemu: unrecognised bluetooth vlan Id\n");
852 return 0;
856 vlan = qemu_find_bt_vlan(vlan_id);
858 if (!vlan->slave)
859 fprintf(stderr, "qemu: warning: adding a slave device to "
860 "an empty scatternet %i\n", vlan_id);
862 if (!strcmp(devname, "keyboard"))
863 return bt_keyboard_init(vlan);
865 fprintf(stderr, "qemu: unsupported bluetooth device `%s'\n", devname);
866 return 0;
869 static int bt_parse(const char *opt)
871 const char *endp, *p;
872 int vlan;
874 if (strstart(opt, "hci", &endp)) {
875 if (!*endp || *endp == ',') {
876 if (*endp)
877 if (!strstart(endp, ",vlan=", 0))
878 opt = endp + 1;
880 return bt_hci_parse(opt);
882 } else if (strstart(opt, "vhci", &endp)) {
883 if (!*endp || *endp == ',') {
884 if (*endp) {
885 if (strstart(endp, ",vlan=", &p)) {
886 vlan = strtol(p, (char **) &endp, 0);
887 if (*endp) {
888 fprintf(stderr, "qemu: bad scatternet '%s'\n", p);
889 return 1;
891 } else {
892 fprintf(stderr, "qemu: bad parameter '%s'\n", endp + 1);
893 return 1;
895 } else
896 vlan = 0;
898 bt_vhci_add(vlan);
899 return 0;
901 } else if (strstart(opt, "device:", &endp))
902 return !bt_device_add(endp);
904 fprintf(stderr, "qemu: bad bluetooth parameter '%s'\n", opt);
905 return 1;
908 static int parse_sandbox(QemuOpts *opts, void *opaque)
910 /* FIXME: change this to true for 1.3 */
911 if (qemu_opt_get_bool(opts, "enable", false)) {
912 #ifdef CONFIG_SECCOMP
913 if (seccomp_start() < 0) {
914 qerror_report(ERROR_CLASS_GENERIC_ERROR,
915 "failed to install seccomp syscall filter in the kernel");
916 return -1;
918 #else
919 qerror_report(ERROR_CLASS_GENERIC_ERROR,
920 "sandboxing request but seccomp is not compiled into this build");
921 return -1;
922 #endif
925 return 0;
928 bool usb_enabled(bool default_usb)
930 return qemu_opt_get_bool(qemu_get_machine_opts(), "usb", default_usb);
933 #ifndef _WIN32
934 static int parse_add_fd(QemuOpts *opts, void *opaque)
936 int fd, dupfd, flags;
937 int64_t fdset_id;
938 const char *fd_opaque = NULL;
940 fd = qemu_opt_get_number(opts, "fd", -1);
941 fdset_id = qemu_opt_get_number(opts, "set", -1);
942 fd_opaque = qemu_opt_get(opts, "opaque");
944 if (fd < 0) {
945 qerror_report(ERROR_CLASS_GENERIC_ERROR,
946 "fd option is required and must be non-negative");
947 return -1;
950 if (fd <= STDERR_FILENO) {
951 qerror_report(ERROR_CLASS_GENERIC_ERROR,
952 "fd cannot be a standard I/O stream");
953 return -1;
957 * All fds inherited across exec() necessarily have FD_CLOEXEC
958 * clear, while qemu sets FD_CLOEXEC on all other fds used internally.
960 flags = fcntl(fd, F_GETFD);
961 if (flags == -1 || (flags & FD_CLOEXEC)) {
962 qerror_report(ERROR_CLASS_GENERIC_ERROR,
963 "fd is not valid or already in use");
964 return -1;
967 if (fdset_id < 0) {
968 qerror_report(ERROR_CLASS_GENERIC_ERROR,
969 "set option is required and must be non-negative");
970 return -1;
973 #ifdef F_DUPFD_CLOEXEC
974 dupfd = fcntl(fd, F_DUPFD_CLOEXEC, 0);
975 #else
976 dupfd = dup(fd);
977 if (dupfd != -1) {
978 qemu_set_cloexec(dupfd);
980 #endif
981 if (dupfd == -1) {
982 qerror_report(ERROR_CLASS_GENERIC_ERROR,
983 "Error duplicating fd: %s", strerror(errno));
984 return -1;
987 /* add the duplicate fd, and optionally the opaque string, to the fd set */
988 monitor_fdset_add_fd(dupfd, true, fdset_id, fd_opaque ? true : false,
989 fd_opaque, NULL);
991 return 0;
994 static int cleanup_add_fd(QemuOpts *opts, void *opaque)
996 int fd;
998 fd = qemu_opt_get_number(opts, "fd", -1);
999 close(fd);
1001 return 0;
1003 #endif
1005 /***********************************************************/
1006 /* QEMU Block devices */
1008 #define HD_OPTS "media=disk"
1009 #define CDROM_OPTS "media=cdrom"
1010 #define FD_OPTS ""
1011 #define PFLASH_OPTS ""
1012 #define MTD_OPTS ""
1013 #define SD_OPTS ""
1015 static int drive_init_func(QemuOpts *opts, void *opaque)
1017 BlockInterfaceType *block_default_type = opaque;
1019 return drive_init(opts, *block_default_type) == NULL;
1022 static int drive_enable_snapshot(QemuOpts *opts, void *opaque)
1024 if (NULL == qemu_opt_get(opts, "snapshot")) {
1025 qemu_opt_set(opts, "snapshot", "on");
1027 return 0;
1030 static void default_drive(int enable, int snapshot, BlockInterfaceType type,
1031 int index, const char *optstr)
1033 QemuOpts *opts;
1035 if (!enable || drive_get_by_index(type, index)) {
1036 return;
1039 opts = drive_add(type, index, NULL, optstr);
1040 if (snapshot) {
1041 drive_enable_snapshot(opts, NULL);
1043 if (!drive_init(opts, type)) {
1044 exit(1);
1048 void qemu_register_boot_set(QEMUBootSetHandler *func, void *opaque)
1050 boot_set_handler = func;
1051 boot_set_opaque = opaque;
1054 int qemu_boot_set(const char *boot_order)
1056 if (!boot_set_handler) {
1057 return -EINVAL;
1059 return boot_set_handler(boot_set_opaque, boot_order);
1062 static void validate_bootdevices(const char *devices)
1064 /* We just do some generic consistency checks */
1065 const char *p;
1066 int bitmap = 0;
1068 for (p = devices; *p != '\0'; p++) {
1069 /* Allowed boot devices are:
1070 * a-b: floppy disk drives
1071 * c-f: IDE disk drives
1072 * g-m: machine implementation dependent drives
1073 * n-p: network devices
1074 * It's up to each machine implementation to check if the given boot
1075 * devices match the actual hardware implementation and firmware
1076 * features.
1078 if (*p < 'a' || *p > 'p') {
1079 fprintf(stderr, "Invalid boot device '%c'\n", *p);
1080 exit(1);
1082 if (bitmap & (1 << (*p - 'a'))) {
1083 fprintf(stderr, "Boot device '%c' was given twice\n", *p);
1084 exit(1);
1086 bitmap |= 1 << (*p - 'a');
1090 static void restore_boot_order(void *opaque)
1092 char *normal_boot_order = opaque;
1093 static int first = 1;
1095 /* Restore boot order and remove ourselves after the first boot */
1096 if (first) {
1097 first = 0;
1098 return;
1101 qemu_boot_set(normal_boot_order);
1103 qemu_unregister_reset(restore_boot_order, normal_boot_order);
1104 g_free(normal_boot_order);
1107 void add_boot_device_path(int32_t bootindex, DeviceState *dev,
1108 const char *suffix)
1110 FWBootEntry *node, *i;
1112 if (bootindex < 0) {
1113 return;
1116 assert(dev != NULL || suffix != NULL);
1118 node = g_malloc0(sizeof(FWBootEntry));
1119 node->bootindex = bootindex;
1120 node->suffix = g_strdup(suffix);
1121 node->dev = dev;
1123 QTAILQ_FOREACH(i, &fw_boot_order, link) {
1124 if (i->bootindex == bootindex) {
1125 fprintf(stderr, "Two devices with same boot index %d\n", bootindex);
1126 exit(1);
1127 } else if (i->bootindex < bootindex) {
1128 continue;
1130 QTAILQ_INSERT_BEFORE(i, node, link);
1131 return;
1133 QTAILQ_INSERT_TAIL(&fw_boot_order, node, link);
1136 DeviceState *get_boot_device(uint32_t position)
1138 uint32_t counter = 0;
1139 FWBootEntry *i = NULL;
1140 DeviceState *res = NULL;
1142 if (!QTAILQ_EMPTY(&fw_boot_order)) {
1143 QTAILQ_FOREACH(i, &fw_boot_order, link) {
1144 if (counter == position) {
1145 res = i->dev;
1146 break;
1148 counter++;
1151 return res;
1155 * This function returns null terminated string that consist of new line
1156 * separated device paths.
1158 * memory pointed by "size" is assigned total length of the array in bytes
1161 char *get_boot_devices_list(size_t *size)
1163 FWBootEntry *i;
1164 size_t total = 0;
1165 char *list = NULL;
1167 QTAILQ_FOREACH(i, &fw_boot_order, link) {
1168 char *devpath = NULL, *bootpath;
1169 size_t len;
1171 if (i->dev) {
1172 devpath = qdev_get_fw_dev_path(i->dev);
1173 assert(devpath);
1176 if (i->suffix && devpath) {
1177 size_t bootpathlen = strlen(devpath) + strlen(i->suffix) + 1;
1179 bootpath = g_malloc(bootpathlen);
1180 snprintf(bootpath, bootpathlen, "%s%s", devpath, i->suffix);
1181 g_free(devpath);
1182 } else if (devpath) {
1183 bootpath = devpath;
1184 } else {
1185 assert(i->suffix);
1186 bootpath = g_strdup(i->suffix);
1189 if (total) {
1190 list[total-1] = '\n';
1192 len = strlen(bootpath) + 1;
1193 list = g_realloc(list, total + len);
1194 memcpy(&list[total], bootpath, len);
1195 total += len;
1196 g_free(bootpath);
1199 *size = total;
1201 if (boot_strict && *size > 0) {
1202 list[total-1] = '\n';
1203 list = g_realloc(list, total + 5);
1204 memcpy(&list[total], "HALT", 5);
1205 *size = total + 5;
1207 return list;
1210 static void numa_node_parse_cpus(int nodenr, const char *cpus)
1212 char *endptr;
1213 unsigned long long value, endvalue;
1215 /* Empty CPU range strings will be considered valid, they will simply
1216 * not set any bit in the CPU bitmap.
1218 if (!*cpus) {
1219 return;
1222 if (parse_uint(cpus, &value, &endptr, 10) < 0) {
1223 goto error;
1225 if (*endptr == '-') {
1226 if (parse_uint_full(endptr + 1, &endvalue, 10) < 0) {
1227 goto error;
1229 } else if (*endptr == '\0') {
1230 endvalue = value;
1231 } else {
1232 goto error;
1235 if (endvalue >= MAX_CPUMASK_BITS) {
1236 endvalue = MAX_CPUMASK_BITS - 1;
1237 fprintf(stderr,
1238 "qemu: NUMA: A max of %d VCPUs are supported\n",
1239 MAX_CPUMASK_BITS);
1242 if (endvalue < value) {
1243 goto error;
1246 bitmap_set(node_cpumask[nodenr], value, endvalue-value+1);
1247 return;
1249 error:
1250 fprintf(stderr, "qemu: Invalid NUMA CPU range: %s\n", cpus);
1251 exit(1);
1254 static void numa_add(const char *optarg)
1256 char option[128];
1257 char *endptr;
1258 unsigned long long nodenr;
1260 optarg = get_opt_name(option, 128, optarg, ',');
1261 if (*optarg == ',') {
1262 optarg++;
1264 if (!strcmp(option, "node")) {
1266 if (nb_numa_nodes >= MAX_NODES) {
1267 fprintf(stderr, "qemu: too many NUMA nodes\n");
1268 exit(1);
1271 if (get_param_value(option, 128, "nodeid", optarg) == 0) {
1272 nodenr = nb_numa_nodes;
1273 } else {
1274 if (parse_uint_full(option, &nodenr, 10) < 0) {
1275 fprintf(stderr, "qemu: Invalid NUMA nodeid: %s\n", option);
1276 exit(1);
1280 if (nodenr >= MAX_NODES) {
1281 fprintf(stderr, "qemu: invalid NUMA nodeid: %llu\n", nodenr);
1282 exit(1);
1285 if (get_param_value(option, 128, "mem", optarg) == 0) {
1286 node_mem[nodenr] = 0;
1287 } else {
1288 int64_t sval;
1289 sval = strtosz(option, &endptr);
1290 if (sval < 0 || *endptr) {
1291 fprintf(stderr, "qemu: invalid numa mem size: %s\n", optarg);
1292 exit(1);
1294 node_mem[nodenr] = sval;
1296 if (get_param_value(option, 128, "cpus", optarg) != 0) {
1297 numa_node_parse_cpus(nodenr, option);
1299 nb_numa_nodes++;
1300 } else {
1301 fprintf(stderr, "Invalid -numa option: %s\n", option);
1302 exit(1);
1306 static QemuOptsList qemu_smp_opts = {
1307 .name = "smp-opts",
1308 .implied_opt_name = "cpus",
1309 .merge_lists = true,
1310 .head = QTAILQ_HEAD_INITIALIZER(qemu_smp_opts.head),
1311 .desc = {
1313 .name = "cpus",
1314 .type = QEMU_OPT_NUMBER,
1315 }, {
1316 .name = "sockets",
1317 .type = QEMU_OPT_NUMBER,
1318 }, {
1319 .name = "cores",
1320 .type = QEMU_OPT_NUMBER,
1321 }, {
1322 .name = "threads",
1323 .type = QEMU_OPT_NUMBER,
1324 }, {
1325 .name = "maxcpus",
1326 .type = QEMU_OPT_NUMBER,
1328 { /*End of list */ }
1332 static void smp_parse(QemuOpts *opts)
1334 if (opts) {
1336 unsigned cpus = qemu_opt_get_number(opts, "cpus", 0);
1337 unsigned sockets = qemu_opt_get_number(opts, "sockets", 0);
1338 unsigned cores = qemu_opt_get_number(opts, "cores", 0);
1339 unsigned threads = qemu_opt_get_number(opts, "threads", 0);
1341 /* compute missing values, prefer sockets over cores over threads */
1342 if (cpus == 0 || sockets == 0) {
1343 sockets = sockets > 0 ? sockets : 1;
1344 cores = cores > 0 ? cores : 1;
1345 threads = threads > 0 ? threads : 1;
1346 if (cpus == 0) {
1347 cpus = cores * threads * sockets;
1349 } else {
1350 if (cores == 0) {
1351 threads = threads > 0 ? threads : 1;
1352 cores = cpus / (sockets * threads);
1353 } else {
1354 threads = cpus / (cores * sockets);
1358 max_cpus = qemu_opt_get_number(opts, "maxcpus", 0);
1360 smp_cpus = cpus;
1361 smp_cores = cores > 0 ? cores : 1;
1362 smp_threads = threads > 0 ? threads : 1;
1366 if (max_cpus == 0) {
1367 max_cpus = smp_cpus;
1370 if (max_cpus > 255) {
1371 fprintf(stderr, "Unsupported number of maxcpus\n");
1372 exit(1);
1374 if (max_cpus < smp_cpus) {
1375 fprintf(stderr, "maxcpus must be equal to or greater than smp\n");
1376 exit(1);
1381 static void configure_realtime(QemuOpts *opts)
1383 bool enable_mlock;
1385 enable_mlock = qemu_opt_get_bool(opts, "mlock", true);
1387 if (enable_mlock) {
1388 if (os_mlock() < 0) {
1389 fprintf(stderr, "qemu: locking memory failed\n");
1390 exit(1);
1396 static void configure_msg(QemuOpts *opts)
1398 enable_timestamp_msg = qemu_opt_get_bool(opts, "timestamp", true);
1401 /***********************************************************/
1402 /* USB devices */
1404 static int usb_device_add(const char *devname)
1406 USBDevice *dev = NULL;
1407 #ifndef CONFIG_LINUX
1408 const char *p;
1409 #endif
1411 if (!usb_enabled(false)) {
1412 return -1;
1415 /* drivers with .usbdevice_name entry in USBDeviceInfo */
1416 dev = usbdevice_create(devname);
1417 if (dev)
1418 goto done;
1420 /* the other ones */
1421 #ifndef CONFIG_LINUX
1422 /* only the linux version is qdev-ified, usb-bsd still needs this */
1423 if (strstart(devname, "host:", &p)) {
1424 dev = usb_host_device_open(usb_bus_find(-1), p);
1426 #endif
1427 if (!dev)
1428 return -1;
1430 done:
1431 return 0;
1434 static int usb_device_del(const char *devname)
1436 int bus_num, addr;
1437 const char *p;
1439 if (strstart(devname, "host:", &p)) {
1440 return -1;
1443 if (!usb_enabled(false)) {
1444 return -1;
1447 p = strchr(devname, '.');
1448 if (!p)
1449 return -1;
1450 bus_num = strtoul(devname, NULL, 0);
1451 addr = strtoul(p + 1, NULL, 0);
1453 return usb_device_delete_addr(bus_num, addr);
1456 static int usb_parse(const char *cmdline)
1458 int r;
1459 r = usb_device_add(cmdline);
1460 if (r < 0) {
1461 fprintf(stderr, "qemu: could not add USB device '%s'\n", cmdline);
1463 return r;
1466 void do_usb_add(Monitor *mon, const QDict *qdict)
1468 const char *devname = qdict_get_str(qdict, "devname");
1469 if (usb_device_add(devname) < 0) {
1470 error_report("could not add USB device '%s'", devname);
1474 void do_usb_del(Monitor *mon, const QDict *qdict)
1476 const char *devname = qdict_get_str(qdict, "devname");
1477 if (usb_device_del(devname) < 0) {
1478 error_report("could not delete USB device '%s'", devname);
1482 /***********************************************************/
1483 /* PCMCIA/Cardbus */
1485 static struct pcmcia_socket_entry_s {
1486 PCMCIASocket *socket;
1487 struct pcmcia_socket_entry_s *next;
1488 } *pcmcia_sockets = 0;
1490 void pcmcia_socket_register(PCMCIASocket *socket)
1492 struct pcmcia_socket_entry_s *entry;
1494 entry = g_malloc(sizeof(struct pcmcia_socket_entry_s));
1495 entry->socket = socket;
1496 entry->next = pcmcia_sockets;
1497 pcmcia_sockets = entry;
1500 void pcmcia_socket_unregister(PCMCIASocket *socket)
1502 struct pcmcia_socket_entry_s *entry, **ptr;
1504 ptr = &pcmcia_sockets;
1505 for (entry = *ptr; entry; ptr = &entry->next, entry = *ptr)
1506 if (entry->socket == socket) {
1507 *ptr = entry->next;
1508 g_free(entry);
1512 void pcmcia_info(Monitor *mon, const QDict *qdict)
1514 struct pcmcia_socket_entry_s *iter;
1516 if (!pcmcia_sockets)
1517 monitor_printf(mon, "No PCMCIA sockets\n");
1519 for (iter = pcmcia_sockets; iter; iter = iter->next)
1520 monitor_printf(mon, "%s: %s\n", iter->socket->slot_string,
1521 iter->socket->attached ? iter->socket->card_string :
1522 "Empty");
1525 /***********************************************************/
1526 /* machine registration */
1528 static QEMUMachine *first_machine = NULL;
1529 QEMUMachine *current_machine = NULL;
1531 int qemu_register_machine(QEMUMachine *m)
1533 QEMUMachine **pm;
1534 pm = &first_machine;
1535 while (*pm != NULL)
1536 pm = &(*pm)->next;
1537 m->next = NULL;
1538 *pm = m;
1539 return 0;
1542 static QEMUMachine *find_machine(const char *name)
1544 QEMUMachine *m;
1546 for(m = first_machine; m != NULL; m = m->next) {
1547 if (!strcmp(m->name, name))
1548 return m;
1549 if (m->alias && !strcmp(m->alias, name))
1550 return m;
1552 return NULL;
1555 QEMUMachine *find_default_machine(void)
1557 QEMUMachine *m;
1559 for(m = first_machine; m != NULL; m = m->next) {
1560 if (m->is_default) {
1561 return m;
1564 return NULL;
1567 MachineInfoList *qmp_query_machines(Error **errp)
1569 MachineInfoList *mach_list = NULL;
1570 QEMUMachine *m;
1572 for (m = first_machine; m; m = m->next) {
1573 MachineInfoList *entry;
1574 MachineInfo *info;
1576 info = g_malloc0(sizeof(*info));
1577 if (m->is_default) {
1578 info->has_is_default = true;
1579 info->is_default = true;
1582 if (m->alias) {
1583 info->has_alias = true;
1584 info->alias = g_strdup(m->alias);
1587 info->name = g_strdup(m->name);
1588 info->cpu_max = !m->max_cpus ? 1 : m->max_cpus;
1590 entry = g_malloc0(sizeof(*entry));
1591 entry->value = info;
1592 entry->next = mach_list;
1593 mach_list = entry;
1596 return mach_list;
1599 /***********************************************************/
1600 /* main execution loop */
1602 struct vm_change_state_entry {
1603 VMChangeStateHandler *cb;
1604 void *opaque;
1605 QLIST_ENTRY (vm_change_state_entry) entries;
1608 static QLIST_HEAD(vm_change_state_head, vm_change_state_entry) vm_change_state_head;
1610 VMChangeStateEntry *qemu_add_vm_change_state_handler(VMChangeStateHandler *cb,
1611 void *opaque)
1613 VMChangeStateEntry *e;
1615 e = g_malloc0(sizeof (*e));
1617 e->cb = cb;
1618 e->opaque = opaque;
1619 QLIST_INSERT_HEAD(&vm_change_state_head, e, entries);
1620 return e;
1623 void qemu_del_vm_change_state_handler(VMChangeStateEntry *e)
1625 QLIST_REMOVE (e, entries);
1626 g_free (e);
1629 void vm_state_notify(int running, RunState state)
1631 VMChangeStateEntry *e;
1633 trace_vm_state_notify(running, state);
1635 for (e = vm_change_state_head.lh_first; e; e = e->entries.le_next) {
1636 e->cb(e->opaque, running, state);
1640 void vm_start(void)
1642 if (!runstate_is_running()) {
1643 cpu_enable_ticks();
1644 runstate_set(RUN_STATE_RUNNING);
1645 vm_state_notify(1, RUN_STATE_RUNNING);
1646 resume_all_vcpus();
1647 monitor_protocol_event(QEVENT_RESUME, NULL);
1651 /* reset/shutdown handler */
1653 typedef struct QEMUResetEntry {
1654 QTAILQ_ENTRY(QEMUResetEntry) entry;
1655 QEMUResetHandler *func;
1656 void *opaque;
1657 } QEMUResetEntry;
1659 static QTAILQ_HEAD(reset_handlers, QEMUResetEntry) reset_handlers =
1660 QTAILQ_HEAD_INITIALIZER(reset_handlers);
1661 static int reset_requested;
1662 static int shutdown_requested, shutdown_signal = -1;
1663 static pid_t shutdown_pid;
1664 static int powerdown_requested;
1665 static int debug_requested;
1666 static int suspend_requested;
1667 static WakeupReason wakeup_reason;
1668 static NotifierList powerdown_notifiers =
1669 NOTIFIER_LIST_INITIALIZER(powerdown_notifiers);
1670 static NotifierList suspend_notifiers =
1671 NOTIFIER_LIST_INITIALIZER(suspend_notifiers);
1672 static NotifierList wakeup_notifiers =
1673 NOTIFIER_LIST_INITIALIZER(wakeup_notifiers);
1674 static uint32_t wakeup_reason_mask = ~(1 << QEMU_WAKEUP_REASON_NONE);
1675 static RunState vmstop_requested = RUN_STATE_MAX;
1677 int qemu_shutdown_requested_get(void)
1679 return shutdown_requested;
1682 int qemu_reset_requested_get(void)
1684 return reset_requested;
1687 static int qemu_shutdown_requested(void)
1689 int r = shutdown_requested;
1690 shutdown_requested = 0;
1691 return r;
1694 static void qemu_kill_report(void)
1696 if (!qtest_driver() && shutdown_signal != -1) {
1697 fprintf(stderr, "qemu: terminating on signal %d", shutdown_signal);
1698 if (shutdown_pid == 0) {
1699 /* This happens for eg ^C at the terminal, so it's worth
1700 * avoiding printing an odd message in that case.
1702 fputc('\n', stderr);
1703 } else {
1704 fprintf(stderr, " from pid " FMT_pid "\n", shutdown_pid);
1706 shutdown_signal = -1;
1710 static int qemu_reset_requested(void)
1712 int r = reset_requested;
1713 reset_requested = 0;
1714 return r;
1717 static int qemu_suspend_requested(void)
1719 int r = suspend_requested;
1720 suspend_requested = 0;
1721 return r;
1724 static WakeupReason qemu_wakeup_requested(void)
1726 return wakeup_reason;
1729 static int qemu_powerdown_requested(void)
1731 int r = powerdown_requested;
1732 powerdown_requested = 0;
1733 return r;
1736 static int qemu_debug_requested(void)
1738 int r = debug_requested;
1739 debug_requested = 0;
1740 return r;
1743 /* We use RUN_STATE_MAX but any invalid value will do */
1744 static bool qemu_vmstop_requested(RunState *r)
1746 if (vmstop_requested < RUN_STATE_MAX) {
1747 *r = vmstop_requested;
1748 vmstop_requested = RUN_STATE_MAX;
1749 return true;
1752 return false;
1755 void qemu_register_reset(QEMUResetHandler *func, void *opaque)
1757 QEMUResetEntry *re = g_malloc0(sizeof(QEMUResetEntry));
1759 re->func = func;
1760 re->opaque = opaque;
1761 QTAILQ_INSERT_TAIL(&reset_handlers, re, entry);
1764 void qemu_unregister_reset(QEMUResetHandler *func, void *opaque)
1766 QEMUResetEntry *re;
1768 QTAILQ_FOREACH(re, &reset_handlers, entry) {
1769 if (re->func == func && re->opaque == opaque) {
1770 QTAILQ_REMOVE(&reset_handlers, re, entry);
1771 g_free(re);
1772 return;
1777 void qemu_devices_reset(void)
1779 QEMUResetEntry *re, *nre;
1781 /* reset all devices */
1782 QTAILQ_FOREACH_SAFE(re, &reset_handlers, entry, nre) {
1783 re->func(re->opaque);
1787 void qemu_system_reset(bool report)
1789 if (current_machine && current_machine->reset) {
1790 current_machine->reset();
1791 } else {
1792 qemu_devices_reset();
1794 if (report) {
1795 monitor_protocol_event(QEVENT_RESET, NULL);
1797 cpu_synchronize_all_post_reset();
1800 void qemu_system_reset_request(void)
1802 if (no_reboot) {
1803 shutdown_requested = 1;
1804 } else {
1805 reset_requested = 1;
1807 cpu_stop_current();
1808 qemu_notify_event();
1811 static void qemu_system_suspend(void)
1813 pause_all_vcpus();
1814 notifier_list_notify(&suspend_notifiers, NULL);
1815 runstate_set(RUN_STATE_SUSPENDED);
1816 monitor_protocol_event(QEVENT_SUSPEND, NULL);
1819 void qemu_system_suspend_request(void)
1821 if (runstate_check(RUN_STATE_SUSPENDED)) {
1822 return;
1824 suspend_requested = 1;
1825 cpu_stop_current();
1826 qemu_notify_event();
1829 void qemu_register_suspend_notifier(Notifier *notifier)
1831 notifier_list_add(&suspend_notifiers, notifier);
1834 void qemu_system_wakeup_request(WakeupReason reason)
1836 if (!runstate_check(RUN_STATE_SUSPENDED)) {
1837 return;
1839 if (!(wakeup_reason_mask & (1 << reason))) {
1840 return;
1842 runstate_set(RUN_STATE_RUNNING);
1843 wakeup_reason = reason;
1844 qemu_notify_event();
1847 void qemu_system_wakeup_enable(WakeupReason reason, bool enabled)
1849 if (enabled) {
1850 wakeup_reason_mask |= (1 << reason);
1851 } else {
1852 wakeup_reason_mask &= ~(1 << reason);
1856 void qemu_register_wakeup_notifier(Notifier *notifier)
1858 notifier_list_add(&wakeup_notifiers, notifier);
1861 void qemu_system_killed(int signal, pid_t pid)
1863 shutdown_signal = signal;
1864 shutdown_pid = pid;
1865 no_shutdown = 0;
1866 qemu_system_shutdown_request();
1869 void qemu_system_shutdown_request(void)
1871 shutdown_requested = 1;
1872 qemu_notify_event();
1875 static void qemu_system_powerdown(void)
1877 monitor_protocol_event(QEVENT_POWERDOWN, NULL);
1878 notifier_list_notify(&powerdown_notifiers, NULL);
1881 void qemu_system_powerdown_request(void)
1883 powerdown_requested = 1;
1884 qemu_notify_event();
1887 void qemu_register_powerdown_notifier(Notifier *notifier)
1889 notifier_list_add(&powerdown_notifiers, notifier);
1892 void qemu_system_debug_request(void)
1894 debug_requested = 1;
1895 qemu_notify_event();
1898 void qemu_system_vmstop_request(RunState state)
1900 vmstop_requested = state;
1901 qemu_notify_event();
1904 static bool main_loop_should_exit(void)
1906 RunState r;
1907 if (qemu_debug_requested()) {
1908 vm_stop(RUN_STATE_DEBUG);
1910 if (qemu_suspend_requested()) {
1911 qemu_system_suspend();
1913 if (qemu_shutdown_requested()) {
1914 qemu_kill_report();
1915 monitor_protocol_event(QEVENT_SHUTDOWN, NULL);
1916 if (no_shutdown) {
1917 vm_stop(RUN_STATE_SHUTDOWN);
1918 } else {
1919 return true;
1922 if (qemu_reset_requested()) {
1923 pause_all_vcpus();
1924 cpu_synchronize_all_states();
1925 qemu_system_reset(VMRESET_REPORT);
1926 resume_all_vcpus();
1927 if (runstate_needs_reset()) {
1928 runstate_set(RUN_STATE_PAUSED);
1931 if (qemu_wakeup_requested()) {
1932 pause_all_vcpus();
1933 cpu_synchronize_all_states();
1934 qemu_system_reset(VMRESET_SILENT);
1935 notifier_list_notify(&wakeup_notifiers, &wakeup_reason);
1936 wakeup_reason = QEMU_WAKEUP_REASON_NONE;
1937 resume_all_vcpus();
1938 monitor_protocol_event(QEVENT_WAKEUP, NULL);
1940 if (qemu_powerdown_requested()) {
1941 qemu_system_powerdown();
1943 if (qemu_vmstop_requested(&r)) {
1944 vm_stop(r);
1946 return false;
1949 static void main_loop(void)
1951 bool nonblocking;
1952 int last_io = 0;
1953 #ifdef CONFIG_PROFILER
1954 int64_t ti;
1955 #endif
1956 do {
1957 nonblocking = !kvm_enabled() && !xen_enabled() && last_io > 0;
1958 #ifdef CONFIG_PROFILER
1959 ti = profile_getclock();
1960 #endif
1961 last_io = main_loop_wait(nonblocking);
1962 #ifdef CONFIG_PROFILER
1963 dev_time += profile_getclock() - ti;
1964 #endif
1965 } while (!main_loop_should_exit());
1968 static void version(void)
1970 printf("QEMU emulator version " QEMU_VERSION QEMU_PKGVERSION ", Copyright (c) 2003-2008 Fabrice Bellard\n");
1973 static void help(int exitcode)
1975 version();
1976 printf("usage: %s [options] [disk_image]\n\n"
1977 "'disk_image' is a raw hard disk image for IDE hard disk 0\n\n",
1978 error_get_progname());
1980 #define QEMU_OPTIONS_GENERATE_HELP
1981 #include "qemu-options-wrapper.h"
1983 printf("\nDuring emulation, the following keys are useful:\n"
1984 "ctrl-alt-f toggle full screen\n"
1985 "ctrl-alt-n switch to virtual console 'n'\n"
1986 "ctrl-alt toggle mouse and keyboard grab\n"
1987 "\n"
1988 "When using -nographic, press 'ctrl-a h' to get some help.\n");
1990 exit(exitcode);
1993 #define HAS_ARG 0x0001
1995 typedef struct QEMUOption {
1996 const char *name;
1997 int flags;
1998 int index;
1999 uint32_t arch_mask;
2000 } QEMUOption;
2002 static const QEMUOption qemu_options[] = {
2003 { "h", 0, QEMU_OPTION_h, QEMU_ARCH_ALL },
2004 #define QEMU_OPTIONS_GENERATE_OPTIONS
2005 #include "qemu-options-wrapper.h"
2006 { NULL },
2009 static bool vga_available(void)
2011 return object_class_by_name("VGA") || object_class_by_name("isa-vga");
2014 static bool cirrus_vga_available(void)
2016 return object_class_by_name("cirrus-vga")
2017 || object_class_by_name("isa-cirrus-vga");
2020 static bool vmware_vga_available(void)
2022 return object_class_by_name("vmware-svga");
2025 static bool qxl_vga_available(void)
2027 return object_class_by_name("qxl-vga");
2030 static bool tcx_vga_available(void)
2032 return object_class_by_name("SUNW,tcx");
2035 static bool cg3_vga_available(void)
2037 return object_class_by_name("cgthree");
2040 static void select_vgahw (const char *p)
2042 const char *opts;
2044 vga_interface_type = VGA_NONE;
2045 if (strstart(p, "std", &opts)) {
2046 if (vga_available()) {
2047 vga_interface_type = VGA_STD;
2048 } else {
2049 fprintf(stderr, "Error: standard VGA not available\n");
2050 exit(0);
2052 } else if (strstart(p, "cirrus", &opts)) {
2053 if (cirrus_vga_available()) {
2054 vga_interface_type = VGA_CIRRUS;
2055 } else {
2056 fprintf(stderr, "Error: Cirrus VGA not available\n");
2057 exit(0);
2059 } else if (strstart(p, "vmware", &opts)) {
2060 if (vmware_vga_available()) {
2061 vga_interface_type = VGA_VMWARE;
2062 } else {
2063 fprintf(stderr, "Error: VMWare SVGA not available\n");
2064 exit(0);
2066 } else if (strstart(p, "xenfb", &opts)) {
2067 vga_interface_type = VGA_XENFB;
2068 } else if (strstart(p, "qxl", &opts)) {
2069 if (qxl_vga_available()) {
2070 vga_interface_type = VGA_QXL;
2071 } else {
2072 fprintf(stderr, "Error: QXL VGA not available\n");
2073 exit(0);
2075 } else if (strstart(p, "tcx", &opts)) {
2076 if (tcx_vga_available()) {
2077 vga_interface_type = VGA_TCX;
2078 } else {
2079 fprintf(stderr, "Error: TCX framebuffer not available\n");
2080 exit(0);
2082 } else if (strstart(p, "cg3", &opts)) {
2083 if (cg3_vga_available()) {
2084 vga_interface_type = VGA_CG3;
2085 } else {
2086 fprintf(stderr, "Error: CG3 framebuffer not available\n");
2087 exit(0);
2089 } else if (!strstart(p, "none", &opts)) {
2090 invalid_vga:
2091 fprintf(stderr, "Unknown vga type: %s\n", p);
2092 exit(1);
2094 while (*opts) {
2095 const char *nextopt;
2097 if (strstart(opts, ",retrace=", &nextopt)) {
2098 opts = nextopt;
2099 if (strstart(opts, "dumb", &nextopt))
2100 vga_retrace_method = VGA_RETRACE_DUMB;
2101 else if (strstart(opts, "precise", &nextopt))
2102 vga_retrace_method = VGA_RETRACE_PRECISE;
2103 else goto invalid_vga;
2104 } else goto invalid_vga;
2105 opts = nextopt;
2109 static DisplayType select_display(const char *p)
2111 const char *opts;
2112 DisplayType display = DT_DEFAULT;
2114 if (strstart(p, "sdl", &opts)) {
2115 #ifdef CONFIG_SDL
2116 display = DT_SDL;
2117 while (*opts) {
2118 const char *nextopt;
2120 if (strstart(opts, ",frame=", &nextopt)) {
2121 opts = nextopt;
2122 if (strstart(opts, "on", &nextopt)) {
2123 no_frame = 0;
2124 } else if (strstart(opts, "off", &nextopt)) {
2125 no_frame = 1;
2126 } else {
2127 goto invalid_sdl_args;
2129 } else if (strstart(opts, ",alt_grab=", &nextopt)) {
2130 opts = nextopt;
2131 if (strstart(opts, "on", &nextopt)) {
2132 alt_grab = 1;
2133 } else if (strstart(opts, "off", &nextopt)) {
2134 alt_grab = 0;
2135 } else {
2136 goto invalid_sdl_args;
2138 } else if (strstart(opts, ",ctrl_grab=", &nextopt)) {
2139 opts = nextopt;
2140 if (strstart(opts, "on", &nextopt)) {
2141 ctrl_grab = 1;
2142 } else if (strstart(opts, "off", &nextopt)) {
2143 ctrl_grab = 0;
2144 } else {
2145 goto invalid_sdl_args;
2147 } else if (strstart(opts, ",window_close=", &nextopt)) {
2148 opts = nextopt;
2149 if (strstart(opts, "on", &nextopt)) {
2150 no_quit = 0;
2151 } else if (strstart(opts, "off", &nextopt)) {
2152 no_quit = 1;
2153 } else {
2154 goto invalid_sdl_args;
2156 } else {
2157 invalid_sdl_args:
2158 fprintf(stderr, "Invalid SDL option string: %s\n", p);
2159 exit(1);
2161 opts = nextopt;
2163 #else
2164 fprintf(stderr, "SDL support is disabled\n");
2165 exit(1);
2166 #endif
2167 } else if (strstart(p, "vnc", &opts)) {
2168 #ifdef CONFIG_VNC
2169 display_remote++;
2171 if (*opts) {
2172 const char *nextopt;
2174 if (strstart(opts, "=", &nextopt)) {
2175 vnc_display = nextopt;
2178 if (!vnc_display) {
2179 fprintf(stderr, "VNC requires a display argument vnc=<display>\n");
2180 exit(1);
2182 #else
2183 fprintf(stderr, "VNC support is disabled\n");
2184 exit(1);
2185 #endif
2186 } else if (strstart(p, "curses", &opts)) {
2187 #ifdef CONFIG_CURSES
2188 display = DT_CURSES;
2189 #else
2190 fprintf(stderr, "Curses support is disabled\n");
2191 exit(1);
2192 #endif
2193 } else if (strstart(p, "gtk", &opts)) {
2194 #ifdef CONFIG_GTK
2195 display = DT_GTK;
2196 #else
2197 fprintf(stderr, "GTK support is disabled\n");
2198 exit(1);
2199 #endif
2200 } else if (strstart(p, "none", &opts)) {
2201 display = DT_NONE;
2202 } else {
2203 fprintf(stderr, "Unknown display type: %s\n", p);
2204 exit(1);
2207 return display;
2210 static int balloon_parse(const char *arg)
2212 QemuOpts *opts;
2214 if (strcmp(arg, "none") == 0) {
2215 return 0;
2218 if (!strncmp(arg, "virtio", 6)) {
2219 if (arg[6] == ',') {
2220 /* have params -> parse them */
2221 opts = qemu_opts_parse(qemu_find_opts("device"), arg+7, 0);
2222 if (!opts)
2223 return -1;
2224 } else {
2225 /* create empty opts */
2226 opts = qemu_opts_create(qemu_find_opts("device"), NULL, 0,
2227 &error_abort);
2229 qemu_opt_set(opts, "driver", "virtio-balloon");
2230 return 0;
2233 return -1;
2236 char *qemu_find_file(int type, const char *name)
2238 int i;
2239 const char *subdir;
2240 char *buf;
2242 /* Try the name as a straight path first */
2243 if (access(name, R_OK) == 0) {
2244 trace_load_file(name, name);
2245 return g_strdup(name);
2248 switch (type) {
2249 case QEMU_FILE_TYPE_BIOS:
2250 subdir = "";
2251 break;
2252 case QEMU_FILE_TYPE_KEYMAP:
2253 subdir = "keymaps/";
2254 break;
2255 default:
2256 abort();
2259 for (i = 0; i < data_dir_idx; i++) {
2260 buf = g_strdup_printf("%s/%s%s", data_dir[i], subdir, name);
2261 if (access(buf, R_OK) == 0) {
2262 trace_load_file(name, buf);
2263 return buf;
2265 g_free(buf);
2267 return NULL;
2270 static int device_help_func(QemuOpts *opts, void *opaque)
2272 return qdev_device_help(opts);
2275 static int device_init_func(QemuOpts *opts, void *opaque)
2277 DeviceState *dev;
2279 dev = qdev_device_add(opts);
2280 if (!dev)
2281 return -1;
2282 object_unref(OBJECT(dev));
2283 return 0;
2286 static int chardev_init_func(QemuOpts *opts, void *opaque)
2288 Error *local_err = NULL;
2290 qemu_chr_new_from_opts(opts, NULL, &local_err);
2291 if (local_err) {
2292 error_report("%s", error_get_pretty(local_err));
2293 error_free(local_err);
2294 return -1;
2296 return 0;
2299 #ifdef CONFIG_VIRTFS
2300 static int fsdev_init_func(QemuOpts *opts, void *opaque)
2302 int ret;
2303 ret = qemu_fsdev_add(opts);
2305 return ret;
2307 #endif
2309 static int mon_init_func(QemuOpts *opts, void *opaque)
2311 CharDriverState *chr;
2312 const char *chardev;
2313 const char *mode;
2314 int flags;
2316 mode = qemu_opt_get(opts, "mode");
2317 if (mode == NULL) {
2318 mode = "readline";
2320 if (strcmp(mode, "readline") == 0) {
2321 flags = MONITOR_USE_READLINE;
2322 } else if (strcmp(mode, "control") == 0) {
2323 flags = MONITOR_USE_CONTROL;
2324 } else {
2325 fprintf(stderr, "unknown monitor mode \"%s\"\n", mode);
2326 exit(1);
2329 if (qemu_opt_get_bool(opts, "pretty", 0))
2330 flags |= MONITOR_USE_PRETTY;
2332 if (qemu_opt_get_bool(opts, "default", 0))
2333 flags |= MONITOR_IS_DEFAULT;
2335 chardev = qemu_opt_get(opts, "chardev");
2336 chr = qemu_chr_find(chardev);
2337 if (chr == NULL) {
2338 fprintf(stderr, "chardev \"%s\" not found\n", chardev);
2339 exit(1);
2342 qemu_chr_fe_claim_no_fail(chr);
2343 monitor_init(chr, flags);
2344 return 0;
2347 static void monitor_parse(const char *optarg, const char *mode)
2349 static int monitor_device_index = 0;
2350 QemuOpts *opts;
2351 const char *p;
2352 char label[32];
2353 int def = 0;
2355 if (strstart(optarg, "chardev:", &p)) {
2356 snprintf(label, sizeof(label), "%s", p);
2357 } else {
2358 snprintf(label, sizeof(label), "compat_monitor%d",
2359 monitor_device_index);
2360 if (monitor_device_index == 0) {
2361 def = 1;
2363 opts = qemu_chr_parse_compat(label, optarg);
2364 if (!opts) {
2365 fprintf(stderr, "parse error: %s\n", optarg);
2366 exit(1);
2370 opts = qemu_opts_create(qemu_find_opts("mon"), label, 1, NULL);
2371 if (!opts) {
2372 fprintf(stderr, "duplicate chardev: %s\n", label);
2373 exit(1);
2375 qemu_opt_set(opts, "mode", mode);
2376 qemu_opt_set(opts, "chardev", label);
2377 if (def)
2378 qemu_opt_set(opts, "default", "on");
2379 monitor_device_index++;
2382 struct device_config {
2383 enum {
2384 DEV_USB, /* -usbdevice */
2385 DEV_BT, /* -bt */
2386 DEV_SERIAL, /* -serial */
2387 DEV_PARALLEL, /* -parallel */
2388 DEV_VIRTCON, /* -virtioconsole */
2389 DEV_DEBUGCON, /* -debugcon */
2390 DEV_GDB, /* -gdb, -s */
2391 DEV_SCLP, /* s390 sclp */
2392 } type;
2393 const char *cmdline;
2394 Location loc;
2395 QTAILQ_ENTRY(device_config) next;
2398 static QTAILQ_HEAD(, device_config) device_configs =
2399 QTAILQ_HEAD_INITIALIZER(device_configs);
2401 static void add_device_config(int type, const char *cmdline)
2403 struct device_config *conf;
2405 conf = g_malloc0(sizeof(*conf));
2406 conf->type = type;
2407 conf->cmdline = cmdline;
2408 loc_save(&conf->loc);
2409 QTAILQ_INSERT_TAIL(&device_configs, conf, next);
2412 static int foreach_device_config(int type, int (*func)(const char *cmdline))
2414 struct device_config *conf;
2415 int rc;
2417 QTAILQ_FOREACH(conf, &device_configs, next) {
2418 if (conf->type != type)
2419 continue;
2420 loc_push_restore(&conf->loc);
2421 rc = func(conf->cmdline);
2422 loc_pop(&conf->loc);
2423 if (0 != rc)
2424 return rc;
2426 return 0;
2429 static int serial_parse(const char *devname)
2431 static int index = 0;
2432 char label[32];
2434 if (strcmp(devname, "none") == 0)
2435 return 0;
2436 if (index == MAX_SERIAL_PORTS) {
2437 fprintf(stderr, "qemu: too many serial ports\n");
2438 exit(1);
2440 snprintf(label, sizeof(label), "serial%d", index);
2441 serial_hds[index] = qemu_chr_new(label, devname, NULL);
2442 if (!serial_hds[index]) {
2443 fprintf(stderr, "qemu: could not connect serial device"
2444 " to character backend '%s'\n", devname);
2445 return -1;
2447 index++;
2448 return 0;
2451 static int parallel_parse(const char *devname)
2453 static int index = 0;
2454 char label[32];
2456 if (strcmp(devname, "none") == 0)
2457 return 0;
2458 if (index == MAX_PARALLEL_PORTS) {
2459 fprintf(stderr, "qemu: too many parallel ports\n");
2460 exit(1);
2462 snprintf(label, sizeof(label), "parallel%d", index);
2463 parallel_hds[index] = qemu_chr_new(label, devname, NULL);
2464 if (!parallel_hds[index]) {
2465 fprintf(stderr, "qemu: could not connect parallel device"
2466 " to character backend '%s'\n", devname);
2467 return -1;
2469 index++;
2470 return 0;
2473 static int virtcon_parse(const char *devname)
2475 QemuOptsList *device = qemu_find_opts("device");
2476 static int index = 0;
2477 char label[32];
2478 QemuOpts *bus_opts, *dev_opts;
2480 if (strcmp(devname, "none") == 0)
2481 return 0;
2482 if (index == MAX_VIRTIO_CONSOLES) {
2483 fprintf(stderr, "qemu: too many virtio consoles\n");
2484 exit(1);
2487 bus_opts = qemu_opts_create(device, NULL, 0, &error_abort);
2488 if (arch_type == QEMU_ARCH_S390X) {
2489 qemu_opt_set(bus_opts, "driver", "virtio-serial-s390");
2490 } else {
2491 qemu_opt_set(bus_opts, "driver", "virtio-serial-pci");
2494 dev_opts = qemu_opts_create(device, NULL, 0, &error_abort);
2495 qemu_opt_set(dev_opts, "driver", "virtconsole");
2497 snprintf(label, sizeof(label), "virtcon%d", index);
2498 virtcon_hds[index] = qemu_chr_new(label, devname, NULL);
2499 if (!virtcon_hds[index]) {
2500 fprintf(stderr, "qemu: could not connect virtio console"
2501 " to character backend '%s'\n", devname);
2502 return -1;
2504 qemu_opt_set(dev_opts, "chardev", label);
2506 index++;
2507 return 0;
2510 static int sclp_parse(const char *devname)
2512 QemuOptsList *device = qemu_find_opts("device");
2513 static int index = 0;
2514 char label[32];
2515 QemuOpts *dev_opts;
2517 if (strcmp(devname, "none") == 0) {
2518 return 0;
2520 if (index == MAX_SCLP_CONSOLES) {
2521 fprintf(stderr, "qemu: too many sclp consoles\n");
2522 exit(1);
2525 assert(arch_type == QEMU_ARCH_S390X);
2527 dev_opts = qemu_opts_create(device, NULL, 0, NULL);
2528 qemu_opt_set(dev_opts, "driver", "sclpconsole");
2530 snprintf(label, sizeof(label), "sclpcon%d", index);
2531 sclp_hds[index] = qemu_chr_new(label, devname, NULL);
2532 if (!sclp_hds[index]) {
2533 fprintf(stderr, "qemu: could not connect sclp console"
2534 " to character backend '%s'\n", devname);
2535 return -1;
2537 qemu_opt_set(dev_opts, "chardev", label);
2539 index++;
2540 return 0;
2543 static int debugcon_parse(const char *devname)
2545 QemuOpts *opts;
2547 if (!qemu_chr_new("debugcon", devname, NULL)) {
2548 exit(1);
2550 opts = qemu_opts_create(qemu_find_opts("device"), "debugcon", 1, NULL);
2551 if (!opts) {
2552 fprintf(stderr, "qemu: already have a debugcon device\n");
2553 exit(1);
2555 qemu_opt_set(opts, "driver", "isa-debugcon");
2556 qemu_opt_set(opts, "chardev", "debugcon");
2557 return 0;
2560 static QEMUMachine *machine_parse(const char *name)
2562 QEMUMachine *m, *machine = NULL;
2564 if (name) {
2565 machine = find_machine(name);
2567 if (machine) {
2568 return machine;
2570 printf("Supported machines are:\n");
2571 for (m = first_machine; m != NULL; m = m->next) {
2572 if (m->alias) {
2573 printf("%-20s %s (alias of %s)\n", m->alias, m->desc, m->name);
2575 printf("%-20s %s%s\n", m->name, m->desc,
2576 m->is_default ? " (default)" : "");
2578 exit(!name || !is_help_option(name));
2581 static int tcg_init(void)
2583 tcg_exec_init(tcg_tb_size * 1024 * 1024);
2584 return 0;
2587 static struct {
2588 const char *opt_name;
2589 const char *name;
2590 int (*available)(void);
2591 int (*init)(void);
2592 bool *allowed;
2593 } accel_list[] = {
2594 { "tcg", "tcg", tcg_available, tcg_init, &tcg_allowed },
2595 { "xen", "Xen", xen_available, xen_init, &xen_allowed },
2596 { "kvm", "KVM", kvm_available, kvm_init, &kvm_allowed },
2597 { "qtest", "QTest", qtest_available, qtest_init_accel, &qtest_allowed },
2600 static int configure_accelerator(void)
2602 const char *p;
2603 char buf[10];
2604 int i, ret;
2605 bool accel_initialised = false;
2606 bool init_failed = false;
2608 p = qemu_opt_get(qemu_get_machine_opts(), "accel");
2609 if (p == NULL) {
2610 /* Use the default "accelerator", tcg */
2611 p = "tcg";
2614 while (!accel_initialised && *p != '\0') {
2615 if (*p == ':') {
2616 p++;
2618 p = get_opt_name(buf, sizeof (buf), p, ':');
2619 for (i = 0; i < ARRAY_SIZE(accel_list); i++) {
2620 if (strcmp(accel_list[i].opt_name, buf) == 0) {
2621 if (!accel_list[i].available()) {
2622 printf("%s not supported for this target\n",
2623 accel_list[i].name);
2624 continue;
2626 *(accel_list[i].allowed) = true;
2627 ret = accel_list[i].init();
2628 if (ret < 0) {
2629 init_failed = true;
2630 fprintf(stderr, "failed to initialize %s: %s\n",
2631 accel_list[i].name,
2632 strerror(-ret));
2633 *(accel_list[i].allowed) = false;
2634 } else {
2635 accel_initialised = true;
2637 break;
2640 if (i == ARRAY_SIZE(accel_list)) {
2641 fprintf(stderr, "\"%s\" accelerator does not exist.\n", buf);
2645 if (!accel_initialised) {
2646 if (!init_failed) {
2647 fprintf(stderr, "No accelerator found!\n");
2649 exit(1);
2652 if (init_failed) {
2653 fprintf(stderr, "Back to %s accelerator.\n", accel_list[i].name);
2656 return !accel_initialised;
2659 void qemu_add_exit_notifier(Notifier *notify)
2661 notifier_list_add(&exit_notifiers, notify);
2664 void qemu_remove_exit_notifier(Notifier *notify)
2666 notifier_remove(notify);
2669 static void qemu_run_exit_notifiers(void)
2671 notifier_list_notify(&exit_notifiers, NULL);
2674 void qemu_add_machine_init_done_notifier(Notifier *notify)
2676 notifier_list_add(&machine_init_done_notifiers, notify);
2679 static void qemu_run_machine_init_done_notifiers(void)
2681 notifier_list_notify(&machine_init_done_notifiers, NULL);
2684 static const QEMUOption *lookup_opt(int argc, char **argv,
2685 const char **poptarg, int *poptind)
2687 const QEMUOption *popt;
2688 int optind = *poptind;
2689 char *r = argv[optind];
2690 const char *optarg;
2692 loc_set_cmdline(argv, optind, 1);
2693 optind++;
2694 /* Treat --foo the same as -foo. */
2695 if (r[1] == '-')
2696 r++;
2697 popt = qemu_options;
2698 for(;;) {
2699 if (!popt->name) {
2700 error_report("invalid option");
2701 exit(1);
2703 if (!strcmp(popt->name, r + 1))
2704 break;
2705 popt++;
2707 if (popt->flags & HAS_ARG) {
2708 if (optind >= argc) {
2709 error_report("requires an argument");
2710 exit(1);
2712 optarg = argv[optind++];
2713 loc_set_cmdline(argv, optind - 2, 2);
2714 } else {
2715 optarg = NULL;
2718 *poptarg = optarg;
2719 *poptind = optind;
2721 return popt;
2724 static gpointer malloc_and_trace(gsize n_bytes)
2726 void *ptr = malloc(n_bytes);
2727 trace_g_malloc(n_bytes, ptr);
2728 return ptr;
2731 static gpointer realloc_and_trace(gpointer mem, gsize n_bytes)
2733 void *ptr = realloc(mem, n_bytes);
2734 trace_g_realloc(mem, n_bytes, ptr);
2735 return ptr;
2738 static void free_and_trace(gpointer mem)
2740 trace_g_free(mem);
2741 free(mem);
2744 static int object_set_property(const char *name, const char *value, void *opaque)
2746 Object *obj = OBJECT(opaque);
2747 StringInputVisitor *siv;
2748 Error *local_err = NULL;
2750 if (strcmp(name, "qom-type") == 0 || strcmp(name, "id") == 0) {
2751 return 0;
2754 siv = string_input_visitor_new(value);
2755 object_property_set(obj, string_input_get_visitor(siv), name, &local_err);
2756 string_input_visitor_cleanup(siv);
2758 if (local_err) {
2759 qerror_report_err(local_err);
2760 error_free(local_err);
2761 return -1;
2764 return 0;
2767 static int object_create(QemuOpts *opts, void *opaque)
2769 const char *type = qemu_opt_get(opts, "qom-type");
2770 const char *id = qemu_opts_id(opts);
2771 Error *local_err = NULL;
2772 Object *obj;
2774 g_assert(type != NULL);
2776 if (id == NULL) {
2777 qerror_report(QERR_MISSING_PARAMETER, "id");
2778 return -1;
2781 obj = object_new(type);
2782 if (qemu_opt_foreach(opts, object_set_property, obj, 1) < 0) {
2783 object_unref(obj);
2784 return -1;
2787 if (!object_dynamic_cast(obj, TYPE_USER_CREATABLE)) {
2788 error_setg(&local_err, "object '%s' isn't supported by -object",
2789 id);
2790 goto out;
2793 user_creatable_complete(obj, &local_err);
2794 if (local_err) {
2795 goto out;
2798 object_property_add_child(container_get(object_get_root(), "/objects"),
2799 id, obj, &local_err);
2801 out:
2802 object_unref(obj);
2803 if (local_err) {
2804 qerror_report_err(local_err);
2805 error_free(local_err);
2806 return -1;
2808 return 0;
2811 int main(int argc, char **argv, char **envp)
2813 int i;
2814 int snapshot, linux_boot;
2815 const char *icount_option = NULL;
2816 const char *initrd_filename;
2817 const char *kernel_filename, *kernel_cmdline;
2818 const char *boot_order;
2819 DisplayState *ds;
2820 int cyls, heads, secs, translation;
2821 QemuOpts *hda_opts = NULL, *opts, *machine_opts;
2822 QemuOptsList *olist;
2823 int optind;
2824 const char *optarg;
2825 const char *loadvm = NULL;
2826 QEMUMachine *machine;
2827 const char *cpu_model;
2828 const char *vga_model = "none";
2829 const char *qtest_chrdev = NULL;
2830 const char *qtest_log = NULL;
2831 const char *pid_file = NULL;
2832 const char *incoming = NULL;
2833 #ifdef CONFIG_VNC
2834 int show_vnc_port = 0;
2835 #endif
2836 bool defconfig = true;
2837 bool userconfig = true;
2838 const char *log_mask = NULL;
2839 const char *log_file = NULL;
2840 GMemVTable mem_trace = {
2841 .malloc = malloc_and_trace,
2842 .realloc = realloc_and_trace,
2843 .free = free_and_trace,
2845 const char *trace_events = NULL;
2846 const char *trace_file = NULL;
2848 atexit(qemu_run_exit_notifiers);
2849 error_set_progname(argv[0]);
2850 qemu_init_exec_dir(argv[0]);
2852 g_mem_set_vtable(&mem_trace);
2853 if (!g_thread_supported()) {
2854 #if !GLIB_CHECK_VERSION(2, 31, 0)
2855 g_thread_init(NULL);
2856 #else
2857 fprintf(stderr, "glib threading failed to initialize.\n");
2858 exit(1);
2859 #endif
2862 module_call_init(MODULE_INIT_QOM);
2864 qemu_add_opts(&qemu_drive_opts);
2865 qemu_add_drive_opts(&qemu_legacy_drive_opts);
2866 qemu_add_drive_opts(&qemu_common_drive_opts);
2867 qemu_add_drive_opts(&qemu_drive_opts);
2868 qemu_add_opts(&qemu_chardev_opts);
2869 qemu_add_opts(&qemu_device_opts);
2870 qemu_add_opts(&qemu_netdev_opts);
2871 qemu_add_opts(&qemu_net_opts);
2872 qemu_add_opts(&qemu_rtc_opts);
2873 qemu_add_opts(&qemu_global_opts);
2874 qemu_add_opts(&qemu_mon_opts);
2875 qemu_add_opts(&qemu_trace_opts);
2876 qemu_add_opts(&qemu_option_rom_opts);
2877 qemu_add_opts(&qemu_machine_opts);
2878 qemu_add_opts(&qemu_smp_opts);
2879 qemu_add_opts(&qemu_boot_opts);
2880 qemu_add_opts(&qemu_sandbox_opts);
2881 qemu_add_opts(&qemu_add_fd_opts);
2882 qemu_add_opts(&qemu_object_opts);
2883 qemu_add_opts(&qemu_tpmdev_opts);
2884 qemu_add_opts(&qemu_realtime_opts);
2885 qemu_add_opts(&qemu_msg_opts);
2887 runstate_init();
2889 init_clocks();
2890 rtc_clock = QEMU_CLOCK_HOST;
2892 qemu_init_auxval(envp);
2893 qemu_cache_utils_init();
2895 QLIST_INIT (&vm_change_state_head);
2896 os_setup_early_signal_handling();
2898 module_call_init(MODULE_INIT_MACHINE);
2899 machine = find_default_machine();
2900 cpu_model = NULL;
2901 ram_size = 0;
2902 snapshot = 0;
2903 cyls = heads = secs = 0;
2904 translation = BIOS_ATA_TRANSLATION_AUTO;
2906 for (i = 0; i < MAX_NODES; i++) {
2907 node_mem[i] = 0;
2908 node_cpumask[i] = bitmap_new(MAX_CPUMASK_BITS);
2911 nb_numa_nodes = 0;
2912 nb_nics = 0;
2914 bdrv_init_with_whitelist();
2916 autostart = 1;
2918 /* first pass of option parsing */
2919 optind = 1;
2920 while (optind < argc) {
2921 if (argv[optind][0] != '-') {
2922 /* disk image */
2923 optind++;
2924 continue;
2925 } else {
2926 const QEMUOption *popt;
2928 popt = lookup_opt(argc, argv, &optarg, &optind);
2929 switch (popt->index) {
2930 case QEMU_OPTION_nodefconfig:
2931 defconfig = false;
2932 break;
2933 case QEMU_OPTION_nouserconfig:
2934 userconfig = false;
2935 break;
2940 if (defconfig) {
2941 int ret;
2942 ret = qemu_read_default_config_files(userconfig);
2943 if (ret < 0) {
2944 exit(1);
2948 /* second pass of option parsing */
2949 optind = 1;
2950 for(;;) {
2951 if (optind >= argc)
2952 break;
2953 if (argv[optind][0] != '-') {
2954 hda_opts = drive_add(IF_DEFAULT, 0, argv[optind++], HD_OPTS);
2955 } else {
2956 const QEMUOption *popt;
2958 popt = lookup_opt(argc, argv, &optarg, &optind);
2959 if (!(popt->arch_mask & arch_type)) {
2960 printf("Option %s not supported for this target\n", popt->name);
2961 exit(1);
2963 switch(popt->index) {
2964 case QEMU_OPTION_M:
2965 machine = machine_parse(optarg);
2966 break;
2967 case QEMU_OPTION_no_kvm_irqchip: {
2968 olist = qemu_find_opts("machine");
2969 qemu_opts_parse(olist, "kernel_irqchip=off", 0);
2970 break;
2972 case QEMU_OPTION_cpu:
2973 /* hw initialization will check this */
2974 cpu_model = optarg;
2975 break;
2976 case QEMU_OPTION_hda:
2978 char buf[256];
2979 if (cyls == 0)
2980 snprintf(buf, sizeof(buf), "%s", HD_OPTS);
2981 else
2982 snprintf(buf, sizeof(buf),
2983 "%s,cyls=%d,heads=%d,secs=%d%s",
2984 HD_OPTS , cyls, heads, secs,
2985 translation == BIOS_ATA_TRANSLATION_LBA ?
2986 ",trans=lba" :
2987 translation == BIOS_ATA_TRANSLATION_NONE ?
2988 ",trans=none" : "");
2989 drive_add(IF_DEFAULT, 0, optarg, buf);
2990 break;
2992 case QEMU_OPTION_hdb:
2993 case QEMU_OPTION_hdc:
2994 case QEMU_OPTION_hdd:
2995 drive_add(IF_DEFAULT, popt->index - QEMU_OPTION_hda, optarg,
2996 HD_OPTS);
2997 break;
2998 case QEMU_OPTION_drive:
2999 if (drive_def(optarg) == NULL) {
3000 exit(1);
3002 break;
3003 case QEMU_OPTION_set:
3004 if (qemu_set_option(optarg) != 0)
3005 exit(1);
3006 break;
3007 case QEMU_OPTION_global:
3008 if (qemu_global_option(optarg) != 0)
3009 exit(1);
3010 break;
3011 case QEMU_OPTION_mtdblock:
3012 drive_add(IF_MTD, -1, optarg, MTD_OPTS);
3013 break;
3014 case QEMU_OPTION_sd:
3015 drive_add(IF_SD, -1, optarg, SD_OPTS);
3016 break;
3017 case QEMU_OPTION_pflash:
3018 drive_add(IF_PFLASH, -1, optarg, PFLASH_OPTS);
3019 break;
3020 case QEMU_OPTION_snapshot:
3021 snapshot = 1;
3022 break;
3023 case QEMU_OPTION_hdachs:
3025 const char *p;
3026 p = optarg;
3027 cyls = strtol(p, (char **)&p, 0);
3028 if (cyls < 1 || cyls > 16383)
3029 goto chs_fail;
3030 if (*p != ',')
3031 goto chs_fail;
3032 p++;
3033 heads = strtol(p, (char **)&p, 0);
3034 if (heads < 1 || heads > 16)
3035 goto chs_fail;
3036 if (*p != ',')
3037 goto chs_fail;
3038 p++;
3039 secs = strtol(p, (char **)&p, 0);
3040 if (secs < 1 || secs > 63)
3041 goto chs_fail;
3042 if (*p == ',') {
3043 p++;
3044 if (!strcmp(p, "large")) {
3045 translation = BIOS_ATA_TRANSLATION_LARGE;
3046 } else if (!strcmp(p, "rechs")) {
3047 translation = BIOS_ATA_TRANSLATION_RECHS;
3048 } else if (!strcmp(p, "none")) {
3049 translation = BIOS_ATA_TRANSLATION_NONE;
3050 } else if (!strcmp(p, "lba")) {
3051 translation = BIOS_ATA_TRANSLATION_LBA;
3052 } else if (!strcmp(p, "auto")) {
3053 translation = BIOS_ATA_TRANSLATION_AUTO;
3054 } else {
3055 goto chs_fail;
3057 } else if (*p != '\0') {
3058 chs_fail:
3059 fprintf(stderr, "qemu: invalid physical CHS format\n");
3060 exit(1);
3062 if (hda_opts != NULL) {
3063 char num[16];
3064 snprintf(num, sizeof(num), "%d", cyls);
3065 qemu_opt_set(hda_opts, "cyls", num);
3066 snprintf(num, sizeof(num), "%d", heads);
3067 qemu_opt_set(hda_opts, "heads", num);
3068 snprintf(num, sizeof(num), "%d", secs);
3069 qemu_opt_set(hda_opts, "secs", num);
3070 if (translation == BIOS_ATA_TRANSLATION_LARGE) {
3071 qemu_opt_set(hda_opts, "trans", "large");
3072 } else if (translation == BIOS_ATA_TRANSLATION_RECHS) {
3073 qemu_opt_set(hda_opts, "trans", "rechs");
3074 } else if (translation == BIOS_ATA_TRANSLATION_LBA) {
3075 qemu_opt_set(hda_opts, "trans", "lba");
3076 } else if (translation == BIOS_ATA_TRANSLATION_NONE) {
3077 qemu_opt_set(hda_opts, "trans", "none");
3081 break;
3082 case QEMU_OPTION_numa:
3083 numa_add(optarg);
3084 break;
3085 case QEMU_OPTION_display:
3086 display_type = select_display(optarg);
3087 break;
3088 case QEMU_OPTION_nographic:
3089 display_type = DT_NOGRAPHIC;
3090 break;
3091 case QEMU_OPTION_curses:
3092 #ifdef CONFIG_CURSES
3093 display_type = DT_CURSES;
3094 #else
3095 fprintf(stderr, "Curses support is disabled\n");
3096 exit(1);
3097 #endif
3098 break;
3099 case QEMU_OPTION_portrait:
3100 graphic_rotate = 90;
3101 break;
3102 case QEMU_OPTION_rotate:
3103 graphic_rotate = strtol(optarg, (char **) &optarg, 10);
3104 if (graphic_rotate != 0 && graphic_rotate != 90 &&
3105 graphic_rotate != 180 && graphic_rotate != 270) {
3106 fprintf(stderr,
3107 "qemu: only 90, 180, 270 deg rotation is available\n");
3108 exit(1);
3110 break;
3111 case QEMU_OPTION_kernel:
3112 qemu_opts_set(qemu_find_opts("machine"), 0, "kernel", optarg);
3113 break;
3114 case QEMU_OPTION_initrd:
3115 qemu_opts_set(qemu_find_opts("machine"), 0, "initrd", optarg);
3116 break;
3117 case QEMU_OPTION_append:
3118 qemu_opts_set(qemu_find_opts("machine"), 0, "append", optarg);
3119 break;
3120 case QEMU_OPTION_dtb:
3121 qemu_opts_set(qemu_find_opts("machine"), 0, "dtb", optarg);
3122 break;
3123 case QEMU_OPTION_cdrom:
3124 drive_add(IF_DEFAULT, 2, optarg, CDROM_OPTS);
3125 break;
3126 case QEMU_OPTION_boot:
3127 opts = qemu_opts_parse(qemu_find_opts("boot-opts"), optarg, 1);
3128 if (!opts) {
3129 exit(1);
3131 break;
3132 case QEMU_OPTION_fda:
3133 case QEMU_OPTION_fdb:
3134 drive_add(IF_FLOPPY, popt->index - QEMU_OPTION_fda,
3135 optarg, FD_OPTS);
3136 break;
3137 case QEMU_OPTION_no_fd_bootchk:
3138 fd_bootchk = 0;
3139 break;
3140 case QEMU_OPTION_netdev:
3141 if (net_client_parse(qemu_find_opts("netdev"), optarg) == -1) {
3142 exit(1);
3144 break;
3145 case QEMU_OPTION_net:
3146 if (net_client_parse(qemu_find_opts("net"), optarg) == -1) {
3147 exit(1);
3149 break;
3150 #ifdef CONFIG_LIBISCSI
3151 case QEMU_OPTION_iscsi:
3152 opts = qemu_opts_parse(qemu_find_opts("iscsi"), optarg, 0);
3153 if (!opts) {
3154 exit(1);
3156 break;
3157 #endif
3158 #ifdef CONFIG_SLIRP
3159 case QEMU_OPTION_tftp:
3160 legacy_tftp_prefix = optarg;
3161 break;
3162 case QEMU_OPTION_bootp:
3163 legacy_bootp_filename = optarg;
3164 break;
3165 case QEMU_OPTION_redir:
3166 if (net_slirp_redir(optarg) < 0)
3167 exit(1);
3168 break;
3169 #endif
3170 case QEMU_OPTION_bt:
3171 add_device_config(DEV_BT, optarg);
3172 break;
3173 case QEMU_OPTION_audio_help:
3174 AUD_help ();
3175 exit (0);
3176 break;
3177 case QEMU_OPTION_soundhw:
3178 select_soundhw (optarg);
3179 break;
3180 case QEMU_OPTION_h:
3181 help(0);
3182 break;
3183 case QEMU_OPTION_version:
3184 version();
3185 exit(0);
3186 break;
3187 case QEMU_OPTION_m: {
3188 int64_t value;
3189 uint64_t sz;
3190 char *end;
3192 value = strtosz(optarg, &end);
3193 if (value < 0 || *end) {
3194 fprintf(stderr, "qemu: invalid ram size: %s\n", optarg);
3195 exit(1);
3197 sz = QEMU_ALIGN_UP((uint64_t)value, 8192);
3198 ram_size = sz;
3199 if (ram_size != sz) {
3200 fprintf(stderr, "qemu: ram size too large\n");
3201 exit(1);
3203 break;
3205 #ifdef CONFIG_TPM
3206 case QEMU_OPTION_tpmdev:
3207 if (tpm_config_parse(qemu_find_opts("tpmdev"), optarg) < 0) {
3208 exit(1);
3210 break;
3211 #endif
3212 case QEMU_OPTION_mempath:
3213 mem_path = optarg;
3214 break;
3215 case QEMU_OPTION_mem_prealloc:
3216 mem_prealloc = 1;
3217 break;
3218 case QEMU_OPTION_d:
3219 log_mask = optarg;
3220 break;
3221 case QEMU_OPTION_D:
3222 log_file = optarg;
3223 break;
3224 case QEMU_OPTION_s:
3225 add_device_config(DEV_GDB, "tcp::" DEFAULT_GDBSTUB_PORT);
3226 break;
3227 case QEMU_OPTION_gdb:
3228 add_device_config(DEV_GDB, optarg);
3229 break;
3230 case QEMU_OPTION_L:
3231 if (data_dir_idx < ARRAY_SIZE(data_dir)) {
3232 data_dir[data_dir_idx++] = optarg;
3234 break;
3235 case QEMU_OPTION_bios:
3236 qemu_opts_set(qemu_find_opts("machine"), 0, "firmware", optarg);
3237 break;
3238 case QEMU_OPTION_singlestep:
3239 singlestep = 1;
3240 break;
3241 case QEMU_OPTION_S:
3242 autostart = 0;
3243 break;
3244 case QEMU_OPTION_k:
3245 keyboard_layout = optarg;
3246 break;
3247 case QEMU_OPTION_localtime:
3248 rtc_utc = 0;
3249 break;
3250 case QEMU_OPTION_vga:
3251 vga_model = optarg;
3252 default_vga = 0;
3253 break;
3254 case QEMU_OPTION_g:
3256 const char *p;
3257 int w, h, depth;
3258 p = optarg;
3259 w = strtol(p, (char **)&p, 10);
3260 if (w <= 0) {
3261 graphic_error:
3262 fprintf(stderr, "qemu: invalid resolution or depth\n");
3263 exit(1);
3265 if (*p != 'x')
3266 goto graphic_error;
3267 p++;
3268 h = strtol(p, (char **)&p, 10);
3269 if (h <= 0)
3270 goto graphic_error;
3271 if (*p == 'x') {
3272 p++;
3273 depth = strtol(p, (char **)&p, 10);
3274 if (depth != 8 && depth != 15 && depth != 16 &&
3275 depth != 24 && depth != 32)
3276 goto graphic_error;
3277 } else if (*p == '\0') {
3278 depth = graphic_depth;
3279 } else {
3280 goto graphic_error;
3283 graphic_width = w;
3284 graphic_height = h;
3285 graphic_depth = depth;
3287 break;
3288 case QEMU_OPTION_echr:
3290 char *r;
3291 term_escape_char = strtol(optarg, &r, 0);
3292 if (r == optarg)
3293 printf("Bad argument to echr\n");
3294 break;
3296 case QEMU_OPTION_monitor:
3297 default_monitor = 0;
3298 if (strncmp(optarg, "none", 4)) {
3299 monitor_parse(optarg, "readline");
3301 break;
3302 case QEMU_OPTION_qmp:
3303 monitor_parse(optarg, "control");
3304 default_monitor = 0;
3305 break;
3306 case QEMU_OPTION_mon:
3307 opts = qemu_opts_parse(qemu_find_opts("mon"), optarg, 1);
3308 if (!opts) {
3309 exit(1);
3311 default_monitor = 0;
3312 break;
3313 case QEMU_OPTION_chardev:
3314 opts = qemu_opts_parse(qemu_find_opts("chardev"), optarg, 1);
3315 if (!opts) {
3316 exit(1);
3318 break;
3319 case QEMU_OPTION_fsdev:
3320 olist = qemu_find_opts("fsdev");
3321 if (!olist) {
3322 fprintf(stderr, "fsdev is not supported by this qemu build.\n");
3323 exit(1);
3325 opts = qemu_opts_parse(olist, optarg, 1);
3326 if (!opts) {
3327 exit(1);
3329 break;
3330 case QEMU_OPTION_virtfs: {
3331 QemuOpts *fsdev;
3332 QemuOpts *device;
3333 const char *writeout, *sock_fd, *socket;
3335 olist = qemu_find_opts("virtfs");
3336 if (!olist) {
3337 fprintf(stderr, "virtfs is not supported by this qemu build.\n");
3338 exit(1);
3340 opts = qemu_opts_parse(olist, optarg, 1);
3341 if (!opts) {
3342 exit(1);
3345 if (qemu_opt_get(opts, "fsdriver") == NULL ||
3346 qemu_opt_get(opts, "mount_tag") == NULL) {
3347 fprintf(stderr, "Usage: -virtfs fsdriver,mount_tag=tag.\n");
3348 exit(1);
3350 fsdev = qemu_opts_create(qemu_find_opts("fsdev"),
3351 qemu_opt_get(opts, "mount_tag"),
3352 1, NULL);
3353 if (!fsdev) {
3354 fprintf(stderr, "duplicate fsdev id: %s\n",
3355 qemu_opt_get(opts, "mount_tag"));
3356 exit(1);
3359 writeout = qemu_opt_get(opts, "writeout");
3360 if (writeout) {
3361 #ifdef CONFIG_SYNC_FILE_RANGE
3362 qemu_opt_set(fsdev, "writeout", writeout);
3363 #else
3364 fprintf(stderr, "writeout=immediate not supported on "
3365 "this platform\n");
3366 exit(1);
3367 #endif
3369 qemu_opt_set(fsdev, "fsdriver", qemu_opt_get(opts, "fsdriver"));
3370 qemu_opt_set(fsdev, "path", qemu_opt_get(opts, "path"));
3371 qemu_opt_set(fsdev, "security_model",
3372 qemu_opt_get(opts, "security_model"));
3373 socket = qemu_opt_get(opts, "socket");
3374 if (socket) {
3375 qemu_opt_set(fsdev, "socket", socket);
3377 sock_fd = qemu_opt_get(opts, "sock_fd");
3378 if (sock_fd) {
3379 qemu_opt_set(fsdev, "sock_fd", sock_fd);
3382 qemu_opt_set_bool(fsdev, "readonly",
3383 qemu_opt_get_bool(opts, "readonly", 0));
3384 device = qemu_opts_create(qemu_find_opts("device"), NULL, 0,
3385 &error_abort);
3386 qemu_opt_set(device, "driver", "virtio-9p-pci");
3387 qemu_opt_set(device, "fsdev",
3388 qemu_opt_get(opts, "mount_tag"));
3389 qemu_opt_set(device, "mount_tag",
3390 qemu_opt_get(opts, "mount_tag"));
3391 break;
3393 case QEMU_OPTION_virtfs_synth: {
3394 QemuOpts *fsdev;
3395 QemuOpts *device;
3397 fsdev = qemu_opts_create(qemu_find_opts("fsdev"), "v_synth",
3398 1, NULL);
3399 if (!fsdev) {
3400 fprintf(stderr, "duplicate option: %s\n", "virtfs_synth");
3401 exit(1);
3403 qemu_opt_set(fsdev, "fsdriver", "synth");
3405 device = qemu_opts_create(qemu_find_opts("device"), NULL, 0,
3406 &error_abort);
3407 qemu_opt_set(device, "driver", "virtio-9p-pci");
3408 qemu_opt_set(device, "fsdev", "v_synth");
3409 qemu_opt_set(device, "mount_tag", "v_synth");
3410 break;
3412 case QEMU_OPTION_serial:
3413 add_device_config(DEV_SERIAL, optarg);
3414 default_serial = 0;
3415 if (strncmp(optarg, "mon:", 4) == 0) {
3416 default_monitor = 0;
3418 break;
3419 case QEMU_OPTION_watchdog:
3420 if (watchdog) {
3421 fprintf(stderr,
3422 "qemu: only one watchdog option may be given\n");
3423 return 1;
3425 watchdog = optarg;
3426 break;
3427 case QEMU_OPTION_watchdog_action:
3428 if (select_watchdog_action(optarg) == -1) {
3429 fprintf(stderr, "Unknown -watchdog-action parameter\n");
3430 exit(1);
3432 break;
3433 case QEMU_OPTION_virtiocon:
3434 add_device_config(DEV_VIRTCON, optarg);
3435 default_virtcon = 0;
3436 if (strncmp(optarg, "mon:", 4) == 0) {
3437 default_monitor = 0;
3439 break;
3440 case QEMU_OPTION_parallel:
3441 add_device_config(DEV_PARALLEL, optarg);
3442 default_parallel = 0;
3443 if (strncmp(optarg, "mon:", 4) == 0) {
3444 default_monitor = 0;
3446 break;
3447 case QEMU_OPTION_debugcon:
3448 add_device_config(DEV_DEBUGCON, optarg);
3449 break;
3450 case QEMU_OPTION_loadvm:
3451 loadvm = optarg;
3452 break;
3453 case QEMU_OPTION_full_screen:
3454 full_screen = 1;
3455 break;
3456 case QEMU_OPTION_no_frame:
3457 no_frame = 1;
3458 break;
3459 case QEMU_OPTION_alt_grab:
3460 alt_grab = 1;
3461 break;
3462 case QEMU_OPTION_ctrl_grab:
3463 ctrl_grab = 1;
3464 break;
3465 case QEMU_OPTION_no_quit:
3466 no_quit = 1;
3467 break;
3468 case QEMU_OPTION_sdl:
3469 #ifdef CONFIG_SDL
3470 display_type = DT_SDL;
3471 break;
3472 #else
3473 fprintf(stderr, "SDL support is disabled\n");
3474 exit(1);
3475 #endif
3476 case QEMU_OPTION_pidfile:
3477 pid_file = optarg;
3478 break;
3479 case QEMU_OPTION_win2k_hack:
3480 win2k_install_hack = 1;
3481 break;
3482 case QEMU_OPTION_rtc_td_hack: {
3483 static GlobalProperty slew_lost_ticks[] = {
3485 .driver = "mc146818rtc",
3486 .property = "lost_tick_policy",
3487 .value = "slew",
3489 { /* end of list */ }
3492 qdev_prop_register_global_list(slew_lost_ticks);
3493 break;
3495 case QEMU_OPTION_acpitable:
3496 opts = qemu_opts_parse(qemu_find_opts("acpi"), optarg, 1);
3497 if (!opts) {
3498 exit(1);
3500 do_acpitable_option(opts);
3501 break;
3502 case QEMU_OPTION_smbios:
3503 opts = qemu_opts_parse(qemu_find_opts("smbios"), optarg, 0);
3504 if (!opts) {
3505 exit(1);
3507 do_smbios_option(opts);
3508 break;
3509 case QEMU_OPTION_enable_kvm:
3510 olist = qemu_find_opts("machine");
3511 qemu_opts_parse(olist, "accel=kvm", 0);
3512 break;
3513 case QEMU_OPTION_machine:
3514 olist = qemu_find_opts("machine");
3515 opts = qemu_opts_parse(olist, optarg, 1);
3516 if (!opts) {
3517 exit(1);
3519 optarg = qemu_opt_get(opts, "type");
3520 if (optarg) {
3521 machine = machine_parse(optarg);
3523 break;
3524 case QEMU_OPTION_no_kvm:
3525 olist = qemu_find_opts("machine");
3526 qemu_opts_parse(olist, "accel=tcg", 0);
3527 break;
3528 case QEMU_OPTION_no_kvm_pit: {
3529 fprintf(stderr, "Warning: KVM PIT can no longer be disabled "
3530 "separately.\n");
3531 break;
3533 case QEMU_OPTION_no_kvm_pit_reinjection: {
3534 static GlobalProperty kvm_pit_lost_tick_policy[] = {
3536 .driver = "kvm-pit",
3537 .property = "lost_tick_policy",
3538 .value = "discard",
3540 { /* end of list */ }
3543 fprintf(stderr, "Warning: option deprecated, use "
3544 "lost_tick_policy property of kvm-pit instead.\n");
3545 qdev_prop_register_global_list(kvm_pit_lost_tick_policy);
3546 break;
3548 case QEMU_OPTION_usb:
3549 olist = qemu_find_opts("machine");
3550 qemu_opts_parse(olist, "usb=on", 0);
3551 break;
3552 case QEMU_OPTION_usbdevice:
3553 olist = qemu_find_opts("machine");
3554 qemu_opts_parse(olist, "usb=on", 0);
3555 add_device_config(DEV_USB, optarg);
3556 break;
3557 case QEMU_OPTION_device:
3558 if (!qemu_opts_parse(qemu_find_opts("device"), optarg, 1)) {
3559 exit(1);
3561 break;
3562 case QEMU_OPTION_smp:
3563 if (!qemu_opts_parse(qemu_find_opts("smp-opts"), optarg, 1)) {
3564 exit(1);
3566 break;
3567 case QEMU_OPTION_vnc:
3568 #ifdef CONFIG_VNC
3569 display_remote++;
3570 vnc_display = optarg;
3571 #else
3572 fprintf(stderr, "VNC support is disabled\n");
3573 exit(1);
3574 #endif
3575 break;
3576 case QEMU_OPTION_no_acpi:
3577 acpi_enabled = 0;
3578 break;
3579 case QEMU_OPTION_no_hpet:
3580 no_hpet = 1;
3581 break;
3582 case QEMU_OPTION_balloon:
3583 if (balloon_parse(optarg) < 0) {
3584 fprintf(stderr, "Unknown -balloon argument %s\n", optarg);
3585 exit(1);
3587 break;
3588 case QEMU_OPTION_no_reboot:
3589 no_reboot = 1;
3590 break;
3591 case QEMU_OPTION_no_shutdown:
3592 no_shutdown = 1;
3593 break;
3594 case QEMU_OPTION_show_cursor:
3595 cursor_hide = 0;
3596 break;
3597 case QEMU_OPTION_uuid:
3598 if(qemu_uuid_parse(optarg, qemu_uuid) < 0) {
3599 fprintf(stderr, "Fail to parse UUID string."
3600 " Wrong format.\n");
3601 exit(1);
3603 qemu_uuid_set = true;
3604 break;
3605 case QEMU_OPTION_option_rom:
3606 if (nb_option_roms >= MAX_OPTION_ROMS) {
3607 fprintf(stderr, "Too many option ROMs\n");
3608 exit(1);
3610 opts = qemu_opts_parse(qemu_find_opts("option-rom"), optarg, 1);
3611 if (!opts) {
3612 exit(1);
3614 option_rom[nb_option_roms].name = qemu_opt_get(opts, "romfile");
3615 option_rom[nb_option_roms].bootindex =
3616 qemu_opt_get_number(opts, "bootindex", -1);
3617 if (!option_rom[nb_option_roms].name) {
3618 fprintf(stderr, "Option ROM file is not specified\n");
3619 exit(1);
3621 nb_option_roms++;
3622 break;
3623 case QEMU_OPTION_semihosting:
3624 semihosting_enabled = 1;
3625 break;
3626 case QEMU_OPTION_tdf:
3627 fprintf(stderr, "Warning: user space PIT time drift fix "
3628 "is no longer supported.\n");
3629 break;
3630 case QEMU_OPTION_name:
3631 qemu_name = g_strdup(optarg);
3633 char *p = strchr(qemu_name, ',');
3634 if (p != NULL) {
3635 *p++ = 0;
3636 if (strncmp(p, "process=", 8)) {
3637 fprintf(stderr, "Unknown subargument %s to -name\n", p);
3638 exit(1);
3640 p += 8;
3641 os_set_proc_name(p);
3644 break;
3645 case QEMU_OPTION_prom_env:
3646 if (nb_prom_envs >= MAX_PROM_ENVS) {
3647 fprintf(stderr, "Too many prom variables\n");
3648 exit(1);
3650 prom_envs[nb_prom_envs] = optarg;
3651 nb_prom_envs++;
3652 break;
3653 case QEMU_OPTION_old_param:
3654 old_param = 1;
3655 break;
3656 case QEMU_OPTION_clock:
3657 /* Clock options no longer exist. Keep this option for
3658 * backward compatibility.
3660 break;
3661 case QEMU_OPTION_startdate:
3662 configure_rtc_date_offset(optarg, 1);
3663 break;
3664 case QEMU_OPTION_rtc:
3665 opts = qemu_opts_parse(qemu_find_opts("rtc"), optarg, 0);
3666 if (!opts) {
3667 exit(1);
3669 configure_rtc(opts);
3670 break;
3671 case QEMU_OPTION_tb_size:
3672 tcg_tb_size = strtol(optarg, NULL, 0);
3673 if (tcg_tb_size < 0) {
3674 tcg_tb_size = 0;
3676 break;
3677 case QEMU_OPTION_icount:
3678 icount_option = optarg;
3679 break;
3680 case QEMU_OPTION_incoming:
3681 incoming = optarg;
3682 runstate_set(RUN_STATE_INMIGRATE);
3683 break;
3684 case QEMU_OPTION_nodefaults:
3685 default_serial = 0;
3686 default_parallel = 0;
3687 default_virtcon = 0;
3688 default_sclp = 0;
3689 default_monitor = 0;
3690 default_net = 0;
3691 default_floppy = 0;
3692 default_cdrom = 0;
3693 default_sdcard = 0;
3694 default_vga = 0;
3695 break;
3696 case QEMU_OPTION_xen_domid:
3697 if (!(xen_available())) {
3698 printf("Option %s not supported for this target\n", popt->name);
3699 exit(1);
3701 xen_domid = atoi(optarg);
3702 break;
3703 case QEMU_OPTION_xen_create:
3704 if (!(xen_available())) {
3705 printf("Option %s not supported for this target\n", popt->name);
3706 exit(1);
3708 xen_mode = XEN_CREATE;
3709 break;
3710 case QEMU_OPTION_xen_attach:
3711 if (!(xen_available())) {
3712 printf("Option %s not supported for this target\n", popt->name);
3713 exit(1);
3715 xen_mode = XEN_ATTACH;
3716 break;
3717 case QEMU_OPTION_trace:
3719 opts = qemu_opts_parse(qemu_find_opts("trace"), optarg, 0);
3720 if (!opts) {
3721 exit(1);
3723 trace_events = qemu_opt_get(opts, "events");
3724 trace_file = qemu_opt_get(opts, "file");
3725 break;
3727 case QEMU_OPTION_readconfig:
3729 int ret = qemu_read_config_file(optarg);
3730 if (ret < 0) {
3731 fprintf(stderr, "read config %s: %s\n", optarg,
3732 strerror(-ret));
3733 exit(1);
3735 break;
3737 case QEMU_OPTION_spice:
3738 olist = qemu_find_opts("spice");
3739 if (!olist) {
3740 fprintf(stderr, "spice is not supported by this qemu build.\n");
3741 exit(1);
3743 opts = qemu_opts_parse(olist, optarg, 0);
3744 if (!opts) {
3745 exit(1);
3747 display_remote++;
3748 break;
3749 case QEMU_OPTION_writeconfig:
3751 FILE *fp;
3752 if (strcmp(optarg, "-") == 0) {
3753 fp = stdout;
3754 } else {
3755 fp = fopen(optarg, "w");
3756 if (fp == NULL) {
3757 fprintf(stderr, "open %s: %s\n", optarg, strerror(errno));
3758 exit(1);
3761 qemu_config_write(fp);
3762 fclose(fp);
3763 break;
3765 case QEMU_OPTION_qtest:
3766 qtest_chrdev = optarg;
3767 break;
3768 case QEMU_OPTION_qtest_log:
3769 qtest_log = optarg;
3770 break;
3771 case QEMU_OPTION_sandbox:
3772 opts = qemu_opts_parse(qemu_find_opts("sandbox"), optarg, 1);
3773 if (!opts) {
3774 exit(1);
3776 break;
3777 case QEMU_OPTION_add_fd:
3778 #ifndef _WIN32
3779 opts = qemu_opts_parse(qemu_find_opts("add-fd"), optarg, 0);
3780 if (!opts) {
3781 exit(1);
3783 #else
3784 error_report("File descriptor passing is disabled on this "
3785 "platform");
3786 exit(1);
3787 #endif
3788 break;
3789 case QEMU_OPTION_object:
3790 opts = qemu_opts_parse(qemu_find_opts("object"), optarg, 1);
3791 if (!opts) {
3792 exit(1);
3794 break;
3795 case QEMU_OPTION_realtime:
3796 opts = qemu_opts_parse(qemu_find_opts("realtime"), optarg, 0);
3797 if (!opts) {
3798 exit(1);
3800 configure_realtime(opts);
3801 break;
3802 case QEMU_OPTION_msg:
3803 opts = qemu_opts_parse(qemu_find_opts("msg"), optarg, 0);
3804 if (!opts) {
3805 exit(1);
3807 configure_msg(opts);
3808 break;
3809 default:
3810 os_parse_cmd_args(popt->index, optarg);
3814 loc_set_none();
3816 if (qemu_init_main_loop()) {
3817 fprintf(stderr, "qemu_init_main_loop failed\n");
3818 exit(1);
3821 if (qemu_opts_foreach(qemu_find_opts("sandbox"), parse_sandbox, NULL, 0)) {
3822 exit(1);
3825 #ifndef _WIN32
3826 if (qemu_opts_foreach(qemu_find_opts("add-fd"), parse_add_fd, NULL, 1)) {
3827 exit(1);
3830 if (qemu_opts_foreach(qemu_find_opts("add-fd"), cleanup_add_fd, NULL, 1)) {
3831 exit(1);
3833 #endif
3835 if (machine == NULL) {
3836 fprintf(stderr, "No machine found.\n");
3837 exit(1);
3840 if (machine->hw_version) {
3841 qemu_set_version(machine->hw_version);
3844 if (qemu_opts_foreach(qemu_find_opts("object"),
3845 object_create, NULL, 0) != 0) {
3846 exit(1);
3849 /* Init CPU def lists, based on config
3850 * - Must be called after all the qemu_read_config_file() calls
3851 * - Must be called before list_cpus()
3852 * - Must be called before machine->init()
3854 cpudef_init();
3856 if (cpu_model && is_help_option(cpu_model)) {
3857 list_cpus(stdout, &fprintf, cpu_model);
3858 exit(0);
3861 /* Open the logfile at this point, if necessary. We can't open the logfile
3862 * when encountering either of the logging options (-d or -D) because the
3863 * other one may be encountered later on the command line, changing the
3864 * location or level of logging.
3866 if (log_mask) {
3867 int mask;
3868 if (log_file) {
3869 qemu_set_log_filename(log_file);
3872 mask = qemu_str_to_log_mask(log_mask);
3873 if (!mask) {
3874 qemu_print_log_usage(stdout);
3875 exit(1);
3877 qemu_set_log(mask);
3880 if (!is_daemonized()) {
3881 if (!trace_backend_init(trace_events, trace_file)) {
3882 exit(1);
3886 /* If no data_dir is specified then try to find it relative to the
3887 executable path. */
3888 if (data_dir_idx < ARRAY_SIZE(data_dir)) {
3889 data_dir[data_dir_idx] = os_find_datadir();
3890 if (data_dir[data_dir_idx] != NULL) {
3891 data_dir_idx++;
3894 /* If all else fails use the install path specified when building. */
3895 if (data_dir_idx < ARRAY_SIZE(data_dir)) {
3896 data_dir[data_dir_idx++] = CONFIG_QEMU_DATADIR;
3899 smp_parse(qemu_opts_find(qemu_find_opts("smp-opts"), NULL));
3901 machine->max_cpus = machine->max_cpus ?: 1; /* Default to UP */
3902 if (smp_cpus > machine->max_cpus) {
3903 fprintf(stderr, "Number of SMP cpus requested (%d), exceeds max cpus "
3904 "supported by machine `%s' (%d)\n", smp_cpus, machine->name,
3905 machine->max_cpus);
3906 exit(1);
3910 * Get the default machine options from the machine if it is not already
3911 * specified either by the configuration file or by the command line.
3913 if (machine->default_machine_opts) {
3914 qemu_opts_set_defaults(qemu_find_opts("machine"),
3915 machine->default_machine_opts, 0);
3918 qemu_opts_foreach(qemu_find_opts("device"), default_driver_check, NULL, 0);
3919 qemu_opts_foreach(qemu_find_opts("global"), default_driver_check, NULL, 0);
3921 if (machine->no_serial) {
3922 default_serial = 0;
3924 if (machine->no_parallel) {
3925 default_parallel = 0;
3927 if (!machine->use_virtcon) {
3928 default_virtcon = 0;
3930 if (!machine->use_sclp) {
3931 default_sclp = 0;
3933 if (machine->no_floppy) {
3934 default_floppy = 0;
3936 if (machine->no_cdrom) {
3937 default_cdrom = 0;
3939 if (machine->no_sdcard) {
3940 default_sdcard = 0;
3943 if (is_daemonized()) {
3944 /* According to documentation and historically, -nographic redirects
3945 * serial port, parallel port and monitor to stdio, which does not work
3946 * with -daemonize. We can redirect these to null instead, but since
3947 * -nographic is legacy, let's just error out.
3948 * We disallow -nographic only if all other ports are not redirected
3949 * explicitly, to not break existing legacy setups which uses
3950 * -nographic _and_ redirects all ports explicitly - this is valid
3951 * usage, -nographic is just a no-op in this case.
3953 if (display_type == DT_NOGRAPHIC
3954 && (default_parallel || default_serial
3955 || default_monitor || default_virtcon)) {
3956 fprintf(stderr, "-nographic can not be used with -daemonize\n");
3957 exit(1);
3959 #ifdef CONFIG_CURSES
3960 if (display_type == DT_CURSES) {
3961 fprintf(stderr, "curses display can not be used with -daemonize\n");
3962 exit(1);
3964 #endif
3967 if (display_type == DT_NOGRAPHIC) {
3968 if (default_parallel)
3969 add_device_config(DEV_PARALLEL, "null");
3970 if (default_serial && default_monitor) {
3971 add_device_config(DEV_SERIAL, "mon:stdio");
3972 } else if (default_virtcon && default_monitor) {
3973 add_device_config(DEV_VIRTCON, "mon:stdio");
3974 } else if (default_sclp && default_monitor) {
3975 add_device_config(DEV_SCLP, "mon:stdio");
3976 } else {
3977 if (default_serial)
3978 add_device_config(DEV_SERIAL, "stdio");
3979 if (default_virtcon)
3980 add_device_config(DEV_VIRTCON, "stdio");
3981 if (default_sclp) {
3982 add_device_config(DEV_SCLP, "stdio");
3984 if (default_monitor)
3985 monitor_parse("stdio", "readline");
3987 } else {
3988 if (default_serial)
3989 add_device_config(DEV_SERIAL, "vc:80Cx24C");
3990 if (default_parallel)
3991 add_device_config(DEV_PARALLEL, "vc:80Cx24C");
3992 if (default_monitor)
3993 monitor_parse("vc:80Cx24C", "readline");
3994 if (default_virtcon)
3995 add_device_config(DEV_VIRTCON, "vc:80Cx24C");
3996 if (default_sclp) {
3997 add_device_config(DEV_SCLP, "vc:80Cx24C");
4001 if (display_type == DT_DEFAULT && !display_remote) {
4002 #if defined(CONFIG_GTK)
4003 display_type = DT_GTK;
4004 #elif defined(CONFIG_SDL) || defined(CONFIG_COCOA)
4005 display_type = DT_SDL;
4006 #elif defined(CONFIG_VNC)
4007 vnc_display = "localhost:0,to=99";
4008 show_vnc_port = 1;
4009 #else
4010 display_type = DT_NONE;
4011 #endif
4014 if ((no_frame || alt_grab || ctrl_grab) && display_type != DT_SDL) {
4015 fprintf(stderr, "-no-frame, -alt-grab and -ctrl-grab are only valid "
4016 "for SDL, ignoring option\n");
4018 if (no_quit && (display_type != DT_GTK && display_type != DT_SDL)) {
4019 fprintf(stderr, "-no-quit is only valid for GTK and SDL, "
4020 "ignoring option\n");
4023 #if defined(CONFIG_GTK)
4024 if (display_type == DT_GTK) {
4025 early_gtk_display_init();
4027 #endif
4029 socket_init();
4031 if (qemu_opts_foreach(qemu_find_opts("chardev"), chardev_init_func, NULL, 1) != 0)
4032 exit(1);
4033 #ifdef CONFIG_VIRTFS
4034 if (qemu_opts_foreach(qemu_find_opts("fsdev"), fsdev_init_func, NULL, 1) != 0) {
4035 exit(1);
4037 #endif
4039 os_daemonize();
4041 if (pid_file && qemu_create_pidfile(pid_file) != 0) {
4042 os_pidfile_error();
4043 exit(1);
4046 /* init the memory */
4047 if (ram_size == 0) {
4048 ram_size = DEFAULT_RAM_SIZE * 1024 * 1024;
4051 if (qemu_opts_foreach(qemu_find_opts("device"), device_help_func, NULL, 0)
4052 != 0) {
4053 exit(0);
4056 configure_accelerator();
4058 if (qtest_chrdev) {
4059 Error *local_err = NULL;
4060 qtest_init(qtest_chrdev, qtest_log, &local_err);
4061 if (local_err) {
4062 error_report("%s", error_get_pretty(local_err));
4063 error_free(local_err);
4064 exit(1);
4068 machine_opts = qemu_get_machine_opts();
4069 kernel_filename = qemu_opt_get(machine_opts, "kernel");
4070 initrd_filename = qemu_opt_get(machine_opts, "initrd");
4071 kernel_cmdline = qemu_opt_get(machine_opts, "append");
4072 bios_name = qemu_opt_get(machine_opts, "firmware");
4074 boot_order = machine->default_boot_order;
4075 opts = qemu_opts_find(qemu_find_opts("boot-opts"), NULL);
4076 if (opts) {
4077 char *normal_boot_order;
4078 const char *order, *once;
4080 order = qemu_opt_get(opts, "order");
4081 if (order) {
4082 validate_bootdevices(order);
4083 boot_order = order;
4086 once = qemu_opt_get(opts, "once");
4087 if (once) {
4088 validate_bootdevices(once);
4089 normal_boot_order = g_strdup(boot_order);
4090 boot_order = once;
4091 qemu_register_reset(restore_boot_order, normal_boot_order);
4094 boot_menu = qemu_opt_get_bool(opts, "menu", boot_menu);
4095 boot_strict = qemu_opt_get_bool(opts, "strict", false);
4098 if (!kernel_cmdline) {
4099 kernel_cmdline = "";
4102 linux_boot = (kernel_filename != NULL);
4104 if (!linux_boot && *kernel_cmdline != '\0') {
4105 fprintf(stderr, "-append only allowed with -kernel option\n");
4106 exit(1);
4109 if (!linux_boot && initrd_filename != NULL) {
4110 fprintf(stderr, "-initrd only allowed with -kernel option\n");
4111 exit(1);
4114 if (!linux_boot && qemu_opt_get(machine_opts, "dtb")) {
4115 fprintf(stderr, "-dtb only allowed with -kernel option\n");
4116 exit(1);
4119 os_set_line_buffering();
4121 qemu_init_cpu_loop();
4122 qemu_mutex_lock_iothread();
4124 #ifdef CONFIG_SPICE
4125 /* spice needs the timers to be initialized by this point */
4126 qemu_spice_init();
4127 #endif
4129 if (icount_option && (kvm_enabled() || xen_enabled())) {
4130 fprintf(stderr, "-icount is not allowed with kvm or xen\n");
4131 exit(1);
4133 configure_icount(icount_option);
4135 /* clean up network at qemu process termination */
4136 atexit(&net_cleanup);
4138 if (net_init_clients() < 0) {
4139 exit(1);
4142 #ifdef CONFIG_TPM
4143 if (tpm_init() < 0) {
4144 exit(1);
4146 #endif
4148 /* init the bluetooth world */
4149 if (foreach_device_config(DEV_BT, bt_parse))
4150 exit(1);
4152 if (!xen_enabled()) {
4153 /* On 32-bit hosts, QEMU is limited by virtual address space */
4154 if (ram_size > (2047 << 20) && HOST_LONG_BITS == 32) {
4155 fprintf(stderr, "qemu: at most 2047 MB RAM can be simulated\n");
4156 exit(1);
4160 cpu_exec_init_all();
4162 blk_mig_init();
4164 /* open the virtual block devices */
4165 if (snapshot)
4166 qemu_opts_foreach(qemu_find_opts("drive"), drive_enable_snapshot, NULL, 0);
4167 if (qemu_opts_foreach(qemu_find_opts("drive"), drive_init_func,
4168 &machine->block_default_type, 1) != 0) {
4169 exit(1);
4172 default_drive(default_cdrom, snapshot, machine->block_default_type, 2,
4173 CDROM_OPTS);
4174 default_drive(default_floppy, snapshot, IF_FLOPPY, 0, FD_OPTS);
4175 default_drive(default_sdcard, snapshot, IF_SD, 0, SD_OPTS);
4177 register_savevm_live(NULL, "ram", 0, 4, &savevm_ram_handlers, NULL);
4179 if (nb_numa_nodes > 0) {
4180 int i;
4182 if (nb_numa_nodes > MAX_NODES) {
4183 nb_numa_nodes = MAX_NODES;
4186 /* If no memory size if given for any node, assume the default case
4187 * and distribute the available memory equally across all nodes
4189 for (i = 0; i < nb_numa_nodes; i++) {
4190 if (node_mem[i] != 0)
4191 break;
4193 if (i == nb_numa_nodes) {
4194 uint64_t usedmem = 0;
4196 /* On Linux, the each node's border has to be 8MB aligned,
4197 * the final node gets the rest.
4199 for (i = 0; i < nb_numa_nodes - 1; i++) {
4200 node_mem[i] = (ram_size / nb_numa_nodes) & ~((1 << 23UL) - 1);
4201 usedmem += node_mem[i];
4203 node_mem[i] = ram_size - usedmem;
4206 for (i = 0; i < nb_numa_nodes; i++) {
4207 if (!bitmap_empty(node_cpumask[i], MAX_CPUMASK_BITS)) {
4208 break;
4211 /* assigning the VCPUs round-robin is easier to implement, guest OSes
4212 * must cope with this anyway, because there are BIOSes out there in
4213 * real machines which also use this scheme.
4215 if (i == nb_numa_nodes) {
4216 for (i = 0; i < max_cpus; i++) {
4217 set_bit(i, node_cpumask[i % nb_numa_nodes]);
4222 if (qemu_opts_foreach(qemu_find_opts("mon"), mon_init_func, NULL, 1) != 0) {
4223 exit(1);
4226 if (foreach_device_config(DEV_SERIAL, serial_parse) < 0)
4227 exit(1);
4228 if (foreach_device_config(DEV_PARALLEL, parallel_parse) < 0)
4229 exit(1);
4230 if (foreach_device_config(DEV_VIRTCON, virtcon_parse) < 0)
4231 exit(1);
4232 if (foreach_device_config(DEV_SCLP, sclp_parse) < 0) {
4233 exit(1);
4235 if (foreach_device_config(DEV_DEBUGCON, debugcon_parse) < 0)
4236 exit(1);
4238 /* If no default VGA is requested, the default is "none". */
4239 if (default_vga) {
4240 if (cirrus_vga_available()) {
4241 vga_model = "cirrus";
4242 } else if (vga_available()) {
4243 vga_model = "std";
4246 select_vgahw(vga_model);
4248 if (watchdog) {
4249 i = select_watchdog(watchdog);
4250 if (i > 0)
4251 exit (i == 1 ? 1 : 0);
4254 if (machine->compat_props) {
4255 qdev_prop_register_global_list(machine->compat_props);
4257 qemu_add_globals();
4259 qdev_machine_init();
4261 QEMUMachineInitArgs args = { .machine = machine,
4262 .ram_size = ram_size,
4263 .boot_order = boot_order,
4264 .kernel_filename = kernel_filename,
4265 .kernel_cmdline = kernel_cmdline,
4266 .initrd_filename = initrd_filename,
4267 .cpu_model = cpu_model };
4268 machine->init(&args);
4270 audio_init();
4272 cpu_synchronize_all_post_init();
4274 set_numa_modes();
4276 current_machine = machine;
4278 /* init USB devices */
4279 if (usb_enabled(false)) {
4280 if (foreach_device_config(DEV_USB, usb_parse) < 0)
4281 exit(1);
4284 /* init generic devices */
4285 if (qemu_opts_foreach(qemu_find_opts("device"), device_init_func, NULL, 1) != 0)
4286 exit(1);
4288 net_check_clients();
4290 ds = init_displaystate();
4292 /* init local displays */
4293 switch (display_type) {
4294 case DT_NOGRAPHIC:
4295 (void)ds; /* avoid warning if no display is configured */
4296 break;
4297 #if defined(CONFIG_CURSES)
4298 case DT_CURSES:
4299 curses_display_init(ds, full_screen);
4300 break;
4301 #endif
4302 #if defined(CONFIG_SDL)
4303 case DT_SDL:
4304 sdl_display_init(ds, full_screen, no_frame);
4305 break;
4306 #elif defined(CONFIG_COCOA)
4307 case DT_SDL:
4308 cocoa_display_init(ds, full_screen);
4309 break;
4310 #endif
4311 #if defined(CONFIG_GTK)
4312 case DT_GTK:
4313 gtk_display_init(ds, full_screen);
4314 break;
4315 #endif
4316 default:
4317 break;
4320 /* must be after terminal init, SDL library changes signal handlers */
4321 os_setup_signal_handling();
4323 #ifdef CONFIG_VNC
4324 /* init remote displays */
4325 if (vnc_display) {
4326 Error *local_err = NULL;
4327 vnc_display_init(ds);
4328 vnc_display_open(ds, vnc_display, &local_err);
4329 if (local_err != NULL) {
4330 error_report("Failed to start VNC server on `%s': %s",
4331 vnc_display, error_get_pretty(local_err));
4332 error_free(local_err);
4333 exit(1);
4336 if (show_vnc_port) {
4337 printf("VNC server running on `%s'\n", vnc_display_local_addr(ds));
4340 #endif
4341 #ifdef CONFIG_SPICE
4342 if (using_spice) {
4343 qemu_spice_display_init();
4345 #endif
4347 if (foreach_device_config(DEV_GDB, gdbserver_start) < 0) {
4348 exit(1);
4351 qdev_machine_creation_done();
4353 if (rom_load_all() != 0) {
4354 fprintf(stderr, "rom loading failed\n");
4355 exit(1);
4358 /* TODO: once all bus devices are qdevified, this should be done
4359 * when bus is created by qdev.c */
4360 qemu_register_reset(qbus_reset_all_fn, sysbus_get_default());
4361 qemu_run_machine_init_done_notifiers();
4363 /* Done notifiers can load ROMs */
4364 rom_load_done();
4366 qemu_system_reset(VMRESET_SILENT);
4367 if (loadvm) {
4368 if (load_vmstate(loadvm) < 0) {
4369 autostart = 0;
4373 if (incoming) {
4374 Error *local_err = NULL;
4375 qemu_start_incoming_migration(incoming, &local_err);
4376 if (local_err) {
4377 error_report("-incoming %s: %s", incoming,
4378 error_get_pretty(local_err));
4379 error_free(local_err);
4380 exit(1);
4382 } else if (autostart) {
4383 vm_start();
4386 os_setup_post();
4388 if (is_daemonized()) {
4389 if (!trace_backend_init(trace_events, trace_file)) {
4390 exit(1);
4394 main_loop();
4395 bdrv_close_all();
4396 pause_all_vcpus();
4397 res_free();
4398 #ifdef CONFIG_TPM
4399 tpm_cleanup();
4400 #endif
4402 return 0;