rdma: rename 'x-rdma' => 'rdma'
[qemu/kevin.git] / vl.c
blob1d27b34301e9d377a28c0bede658f1d75b9f3d53
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 _WIN32
42 #include <windows.h>
43 #endif
45 #ifdef CONFIG_SDL
46 #if defined(__APPLE__) || defined(main)
47 #include <SDL.h>
48 int qemu_main(int argc, char **argv, char **envp);
49 int main(int argc, char **argv)
51 return qemu_main(argc, argv, NULL);
53 #undef main
54 #define main qemu_main
55 #endif
56 #endif /* CONFIG_SDL */
58 #ifdef CONFIG_COCOA
59 #undef main
60 #define main qemu_main
61 #endif /* CONFIG_COCOA */
63 #include <glib.h>
65 #include "hw/hw.h"
66 #include "hw/boards.h"
67 #include "hw/usb.h"
68 #include "hw/pcmcia.h"
69 #include "hw/i386/pc.h"
70 #include "hw/isa/isa.h"
71 #include "hw/bt.h"
72 #include "sysemu/watchdog.h"
73 #include "hw/i386/smbios.h"
74 #include "hw/xen/xen.h"
75 #include "hw/qdev.h"
76 #include "hw/loader.h"
77 #include "monitor/qdev.h"
78 #include "sysemu/bt.h"
79 #include "net/net.h"
80 #include "net/slirp.h"
81 #include "monitor/monitor.h"
82 #include "ui/console.h"
83 #include "sysemu/sysemu.h"
84 #include "exec/gdbstub.h"
85 #include "qemu/timer.h"
86 #include "sysemu/char.h"
87 #include "qemu/bitmap.h"
88 #include "qemu/cache-utils.h"
89 #include "sysemu/blockdev.h"
90 #include "hw/block/block.h"
91 #include "migration/block.h"
92 #include "sysemu/tpm.h"
93 #include "sysemu/dma.h"
94 #include "audio/audio.h"
95 #include "migration/migration.h"
96 #include "sysemu/kvm.h"
97 #include "qapi/qmp/qjson.h"
98 #include "qemu/option.h"
99 #include "qemu/config-file.h"
100 #include "qemu-options.h"
101 #include "qmp-commands.h"
102 #include "qemu/main-loop.h"
103 #ifdef CONFIG_VIRTFS
104 #include "fsdev/qemu-fsdev.h"
105 #endif
106 #include "sysemu/qtest.h"
108 #include "disas/disas.h"
110 #include "qemu/sockets.h"
112 #include "slirp/libslirp.h"
114 #include "trace.h"
115 #include "trace/control.h"
116 #include "qemu/queue.h"
117 #include "sysemu/cpus.h"
118 #include "sysemu/arch_init.h"
119 #include "qemu/osdep.h"
121 #include "ui/qemu-spice.h"
122 #include "qapi/string-input-visitor.h"
123 #include "qom/object_interfaces.h"
125 #define DEFAULT_RAM_SIZE 128
127 #define MAX_VIRTIO_CONSOLES 1
128 #define MAX_SCLP_CONSOLES 1
130 static const char *data_dir[16];
131 static int data_dir_idx;
132 const char *bios_name = NULL;
133 enum vga_retrace_method vga_retrace_method = VGA_RETRACE_DUMB;
134 DisplayType display_type = DT_DEFAULT;
135 static int display_remote;
136 const char* keyboard_layout = NULL;
137 ram_addr_t ram_size;
138 const char *mem_path = NULL;
139 int mem_prealloc = 0; /* force preallocation of physical target memory */
140 int nb_nics;
141 NICInfo nd_table[MAX_NICS];
142 int autostart;
143 static int rtc_utc = 1;
144 static int rtc_date_offset = -1; /* -1 means no change */
145 QEMUClockType rtc_clock;
146 int vga_interface_type = VGA_NONE;
147 static int full_screen = 0;
148 static int no_frame = 0;
149 int no_quit = 0;
150 CharDriverState *serial_hds[MAX_SERIAL_PORTS];
151 CharDriverState *parallel_hds[MAX_PARALLEL_PORTS];
152 CharDriverState *virtcon_hds[MAX_VIRTIO_CONSOLES];
153 CharDriverState *sclp_hds[MAX_SCLP_CONSOLES];
154 int win2k_install_hack = 0;
155 int singlestep = 0;
156 int smp_cpus = 1;
157 int max_cpus = 0;
158 int smp_cores = 1;
159 int smp_threads = 1;
160 #ifdef CONFIG_VNC
161 const char *vnc_display;
162 #endif
163 int acpi_enabled = 1;
164 int no_hpet = 0;
165 int fd_bootchk = 1;
166 static int no_reboot;
167 int no_shutdown = 0;
168 int cursor_hide = 1;
169 int graphic_rotate = 0;
170 const char *watchdog;
171 QEMUOptionRom option_rom[MAX_OPTION_ROMS];
172 int nb_option_roms;
173 int semihosting_enabled = 0;
174 int old_param = 0;
175 const char *qemu_name;
176 int alt_grab = 0;
177 int ctrl_grab = 0;
178 unsigned int nb_prom_envs = 0;
179 const char *prom_envs[MAX_PROM_ENVS];
180 int boot_menu;
181 static bool boot_strict;
182 uint8_t *boot_splash_filedata;
183 size_t boot_splash_filedata_size;
184 uint8_t qemu_extra_params_fw[2];
186 typedef struct FWBootEntry FWBootEntry;
188 struct FWBootEntry {
189 QTAILQ_ENTRY(FWBootEntry) link;
190 int32_t bootindex;
191 DeviceState *dev;
192 char *suffix;
195 static QTAILQ_HEAD(, FWBootEntry) fw_boot_order =
196 QTAILQ_HEAD_INITIALIZER(fw_boot_order);
198 int nb_numa_nodes;
199 uint64_t node_mem[MAX_NODES];
200 unsigned long *node_cpumask[MAX_NODES];
202 uint8_t qemu_uuid[16];
203 bool qemu_uuid_set;
205 static QEMUBootSetHandler *boot_set_handler;
206 static void *boot_set_opaque;
208 static NotifierList exit_notifiers =
209 NOTIFIER_LIST_INITIALIZER(exit_notifiers);
211 static NotifierList machine_init_done_notifiers =
212 NOTIFIER_LIST_INITIALIZER(machine_init_done_notifiers);
214 static bool tcg_allowed = true;
215 bool xen_allowed;
216 uint32_t xen_domid;
217 enum xen_mode xen_mode = XEN_EMULATE;
218 static int tcg_tb_size;
220 static int default_serial = 1;
221 static int default_parallel = 1;
222 static int default_virtcon = 1;
223 static int default_sclp = 1;
224 static int default_monitor = 1;
225 static int default_floppy = 1;
226 static int default_cdrom = 1;
227 static int default_sdcard = 1;
228 static int default_vga = 1;
230 static struct {
231 const char *driver;
232 int *flag;
233 } default_list[] = {
234 { .driver = "isa-serial", .flag = &default_serial },
235 { .driver = "isa-parallel", .flag = &default_parallel },
236 { .driver = "isa-fdc", .flag = &default_floppy },
237 { .driver = "ide-cd", .flag = &default_cdrom },
238 { .driver = "ide-hd", .flag = &default_cdrom },
239 { .driver = "ide-drive", .flag = &default_cdrom },
240 { .driver = "scsi-cd", .flag = &default_cdrom },
241 { .driver = "virtio-serial-pci", .flag = &default_virtcon },
242 { .driver = "virtio-serial-s390", .flag = &default_virtcon },
243 { .driver = "virtio-serial", .flag = &default_virtcon },
244 { .driver = "VGA", .flag = &default_vga },
245 { .driver = "isa-vga", .flag = &default_vga },
246 { .driver = "cirrus-vga", .flag = &default_vga },
247 { .driver = "isa-cirrus-vga", .flag = &default_vga },
248 { .driver = "vmware-svga", .flag = &default_vga },
249 { .driver = "qxl-vga", .flag = &default_vga },
252 static QemuOptsList qemu_rtc_opts = {
253 .name = "rtc",
254 .head = QTAILQ_HEAD_INITIALIZER(qemu_rtc_opts.head),
255 .desc = {
257 .name = "base",
258 .type = QEMU_OPT_STRING,
260 .name = "clock",
261 .type = QEMU_OPT_STRING,
263 .name = "driftfix",
264 .type = QEMU_OPT_STRING,
266 { /* end of list */ }
270 static QemuOptsList qemu_sandbox_opts = {
271 .name = "sandbox",
272 .implied_opt_name = "enable",
273 .head = QTAILQ_HEAD_INITIALIZER(qemu_sandbox_opts.head),
274 .desc = {
276 .name = "enable",
277 .type = QEMU_OPT_BOOL,
279 { /* end of list */ }
283 static QemuOptsList qemu_trace_opts = {
284 .name = "trace",
285 .implied_opt_name = "trace",
286 .head = QTAILQ_HEAD_INITIALIZER(qemu_trace_opts.head),
287 .desc = {
289 .name = "events",
290 .type = QEMU_OPT_STRING,
292 .name = "file",
293 .type = QEMU_OPT_STRING,
295 { /* end of list */ }
299 static QemuOptsList qemu_option_rom_opts = {
300 .name = "option-rom",
301 .implied_opt_name = "romfile",
302 .head = QTAILQ_HEAD_INITIALIZER(qemu_option_rom_opts.head),
303 .desc = {
305 .name = "bootindex",
306 .type = QEMU_OPT_NUMBER,
307 }, {
308 .name = "romfile",
309 .type = QEMU_OPT_STRING,
311 { /* end of list */ }
315 static QemuOptsList qemu_machine_opts = {
316 .name = "machine",
317 .implied_opt_name = "type",
318 .merge_lists = true,
319 .head = QTAILQ_HEAD_INITIALIZER(qemu_machine_opts.head),
320 .desc = {
322 .name = "type",
323 .type = QEMU_OPT_STRING,
324 .help = "emulated machine"
325 }, {
326 .name = "accel",
327 .type = QEMU_OPT_STRING,
328 .help = "accelerator list",
329 }, {
330 .name = "kernel_irqchip",
331 .type = QEMU_OPT_BOOL,
332 .help = "use KVM in-kernel irqchip",
333 }, {
334 .name = "kvm_shadow_mem",
335 .type = QEMU_OPT_SIZE,
336 .help = "KVM shadow MMU size",
337 }, {
338 .name = "kernel",
339 .type = QEMU_OPT_STRING,
340 .help = "Linux kernel image file",
341 }, {
342 .name = "initrd",
343 .type = QEMU_OPT_STRING,
344 .help = "Linux initial ramdisk file",
345 }, {
346 .name = "append",
347 .type = QEMU_OPT_STRING,
348 .help = "Linux kernel command line",
349 }, {
350 .name = "dtb",
351 .type = QEMU_OPT_STRING,
352 .help = "Linux kernel device tree file",
353 }, {
354 .name = "dumpdtb",
355 .type = QEMU_OPT_STRING,
356 .help = "Dump current dtb to a file and quit",
357 }, {
358 .name = "phandle_start",
359 .type = QEMU_OPT_NUMBER,
360 .help = "The first phandle ID we may generate dynamically",
361 }, {
362 .name = "dt_compatible",
363 .type = QEMU_OPT_STRING,
364 .help = "Overrides the \"compatible\" property of the dt root node",
365 }, {
366 .name = "dump-guest-core",
367 .type = QEMU_OPT_BOOL,
368 .help = "Include guest memory in a core dump",
369 }, {
370 .name = "mem-merge",
371 .type = QEMU_OPT_BOOL,
372 .help = "enable/disable memory merge support",
374 .name = "usb",
375 .type = QEMU_OPT_BOOL,
376 .help = "Set on/off to enable/disable usb",
378 .name = "firmware",
379 .type = QEMU_OPT_STRING,
380 .help = "firmware image",
382 { /* End of list */ }
386 static QemuOptsList qemu_boot_opts = {
387 .name = "boot-opts",
388 .implied_opt_name = "order",
389 .merge_lists = true,
390 .head = QTAILQ_HEAD_INITIALIZER(qemu_boot_opts.head),
391 .desc = {
393 .name = "order",
394 .type = QEMU_OPT_STRING,
395 }, {
396 .name = "once",
397 .type = QEMU_OPT_STRING,
398 }, {
399 .name = "menu",
400 .type = QEMU_OPT_BOOL,
401 }, {
402 .name = "splash",
403 .type = QEMU_OPT_STRING,
404 }, {
405 .name = "splash-time",
406 .type = QEMU_OPT_STRING,
407 }, {
408 .name = "reboot-timeout",
409 .type = QEMU_OPT_STRING,
410 }, {
411 .name = "strict",
412 .type = QEMU_OPT_BOOL,
414 { /*End of list */ }
418 static QemuOptsList qemu_add_fd_opts = {
419 .name = "add-fd",
420 .head = QTAILQ_HEAD_INITIALIZER(qemu_add_fd_opts.head),
421 .desc = {
423 .name = "fd",
424 .type = QEMU_OPT_NUMBER,
425 .help = "file descriptor of which a duplicate is added to fd set",
427 .name = "set",
428 .type = QEMU_OPT_NUMBER,
429 .help = "ID of the fd set to add fd to",
431 .name = "opaque",
432 .type = QEMU_OPT_STRING,
433 .help = "free-form string used to describe fd",
435 { /* end of list */ }
439 static QemuOptsList qemu_object_opts = {
440 .name = "object",
441 .implied_opt_name = "qom-type",
442 .head = QTAILQ_HEAD_INITIALIZER(qemu_object_opts.head),
443 .desc = {
448 static QemuOptsList qemu_tpmdev_opts = {
449 .name = "tpmdev",
450 .implied_opt_name = "type",
451 .head = QTAILQ_HEAD_INITIALIZER(qemu_tpmdev_opts.head),
452 .desc = {
453 /* options are defined in the TPM backends */
454 { /* end of list */ }
458 static QemuOptsList qemu_realtime_opts = {
459 .name = "realtime",
460 .head = QTAILQ_HEAD_INITIALIZER(qemu_realtime_opts.head),
461 .desc = {
463 .name = "mlock",
464 .type = QEMU_OPT_BOOL,
466 { /* end of list */ }
470 static QemuOptsList qemu_msg_opts = {
471 .name = "msg",
472 .head = QTAILQ_HEAD_INITIALIZER(qemu_msg_opts.head),
473 .desc = {
475 .name = "timestamp",
476 .type = QEMU_OPT_BOOL,
478 { /* end of list */ }
483 * Get machine options
485 * Returns: machine options (never null).
487 QemuOpts *qemu_get_machine_opts(void)
489 QemuOptsList *list;
490 QemuOpts *opts;
492 list = qemu_find_opts("machine");
493 assert(list);
494 opts = qemu_opts_find(list, NULL);
495 if (!opts) {
496 opts = qemu_opts_create(list, NULL, 0, &error_abort);
498 return opts;
501 const char *qemu_get_vm_name(void)
503 return qemu_name;
506 static void res_free(void)
508 if (boot_splash_filedata != NULL) {
509 g_free(boot_splash_filedata);
510 boot_splash_filedata = NULL;
514 static int default_driver_check(QemuOpts *opts, void *opaque)
516 const char *driver = qemu_opt_get(opts, "driver");
517 int i;
519 if (!driver)
520 return 0;
521 for (i = 0; i < ARRAY_SIZE(default_list); i++) {
522 if (strcmp(default_list[i].driver, driver) != 0)
523 continue;
524 *(default_list[i].flag) = 0;
526 return 0;
529 /***********************************************************/
530 /* QEMU state */
532 static RunState current_run_state = RUN_STATE_PRELAUNCH;
534 typedef struct {
535 RunState from;
536 RunState to;
537 } RunStateTransition;
539 static const RunStateTransition runstate_transitions_def[] = {
540 /* from -> to */
541 { RUN_STATE_DEBUG, RUN_STATE_RUNNING },
542 { RUN_STATE_DEBUG, RUN_STATE_FINISH_MIGRATE },
544 { RUN_STATE_INMIGRATE, RUN_STATE_RUNNING },
545 { RUN_STATE_INMIGRATE, RUN_STATE_PAUSED },
547 { RUN_STATE_INTERNAL_ERROR, RUN_STATE_PAUSED },
548 { RUN_STATE_INTERNAL_ERROR, RUN_STATE_FINISH_MIGRATE },
550 { RUN_STATE_IO_ERROR, RUN_STATE_RUNNING },
551 { RUN_STATE_IO_ERROR, RUN_STATE_FINISH_MIGRATE },
553 { RUN_STATE_PAUSED, RUN_STATE_RUNNING },
554 { RUN_STATE_PAUSED, RUN_STATE_FINISH_MIGRATE },
556 { RUN_STATE_POSTMIGRATE, RUN_STATE_RUNNING },
557 { RUN_STATE_POSTMIGRATE, RUN_STATE_FINISH_MIGRATE },
559 { RUN_STATE_PRELAUNCH, RUN_STATE_RUNNING },
560 { RUN_STATE_PRELAUNCH, RUN_STATE_FINISH_MIGRATE },
561 { RUN_STATE_PRELAUNCH, RUN_STATE_INMIGRATE },
563 { RUN_STATE_FINISH_MIGRATE, RUN_STATE_RUNNING },
564 { RUN_STATE_FINISH_MIGRATE, RUN_STATE_POSTMIGRATE },
566 { RUN_STATE_RESTORE_VM, RUN_STATE_RUNNING },
568 { RUN_STATE_RUNNING, RUN_STATE_DEBUG },
569 { RUN_STATE_RUNNING, RUN_STATE_INTERNAL_ERROR },
570 { RUN_STATE_RUNNING, RUN_STATE_IO_ERROR },
571 { RUN_STATE_RUNNING, RUN_STATE_PAUSED },
572 { RUN_STATE_RUNNING, RUN_STATE_FINISH_MIGRATE },
573 { RUN_STATE_RUNNING, RUN_STATE_RESTORE_VM },
574 { RUN_STATE_RUNNING, RUN_STATE_SAVE_VM },
575 { RUN_STATE_RUNNING, RUN_STATE_SHUTDOWN },
576 { RUN_STATE_RUNNING, RUN_STATE_WATCHDOG },
577 { RUN_STATE_RUNNING, RUN_STATE_GUEST_PANICKED },
579 { RUN_STATE_SAVE_VM, RUN_STATE_RUNNING },
581 { RUN_STATE_SHUTDOWN, RUN_STATE_PAUSED },
582 { RUN_STATE_SHUTDOWN, RUN_STATE_FINISH_MIGRATE },
584 { RUN_STATE_DEBUG, RUN_STATE_SUSPENDED },
585 { RUN_STATE_RUNNING, RUN_STATE_SUSPENDED },
586 { RUN_STATE_SUSPENDED, RUN_STATE_RUNNING },
587 { RUN_STATE_SUSPENDED, RUN_STATE_FINISH_MIGRATE },
589 { RUN_STATE_WATCHDOG, RUN_STATE_RUNNING },
590 { RUN_STATE_WATCHDOG, RUN_STATE_FINISH_MIGRATE },
592 { RUN_STATE_GUEST_PANICKED, RUN_STATE_RUNNING },
593 { RUN_STATE_GUEST_PANICKED, RUN_STATE_FINISH_MIGRATE },
595 { RUN_STATE_MAX, RUN_STATE_MAX },
598 static bool runstate_valid_transitions[RUN_STATE_MAX][RUN_STATE_MAX];
600 bool runstate_check(RunState state)
602 return current_run_state == state;
605 static void runstate_init(void)
607 const RunStateTransition *p;
609 memset(&runstate_valid_transitions, 0, sizeof(runstate_valid_transitions));
611 for (p = &runstate_transitions_def[0]; p->from != RUN_STATE_MAX; p++) {
612 runstate_valid_transitions[p->from][p->to] = true;
616 /* This function will abort() on invalid state transitions */
617 void runstate_set(RunState new_state)
619 assert(new_state < RUN_STATE_MAX);
621 if (!runstate_valid_transitions[current_run_state][new_state]) {
622 fprintf(stderr, "ERROR: invalid runstate transition: '%s' -> '%s'\n",
623 RunState_lookup[current_run_state],
624 RunState_lookup[new_state]);
625 abort();
627 trace_runstate_set(new_state);
628 current_run_state = new_state;
631 int runstate_is_running(void)
633 return runstate_check(RUN_STATE_RUNNING);
636 bool runstate_needs_reset(void)
638 return runstate_check(RUN_STATE_INTERNAL_ERROR) ||
639 runstate_check(RUN_STATE_SHUTDOWN);
642 StatusInfo *qmp_query_status(Error **errp)
644 StatusInfo *info = g_malloc0(sizeof(*info));
646 info->running = runstate_is_running();
647 info->singlestep = singlestep;
648 info->status = current_run_state;
650 return info;
653 /***********************************************************/
654 /* real time host monotonic timer */
656 /***********************************************************/
657 /* host time/date access */
658 void qemu_get_timedate(struct tm *tm, int offset)
660 time_t ti;
662 time(&ti);
663 ti += offset;
664 if (rtc_date_offset == -1) {
665 if (rtc_utc)
666 gmtime_r(&ti, tm);
667 else
668 localtime_r(&ti, tm);
669 } else {
670 ti -= rtc_date_offset;
671 gmtime_r(&ti, tm);
675 int qemu_timedate_diff(struct tm *tm)
677 time_t seconds;
679 if (rtc_date_offset == -1)
680 if (rtc_utc)
681 seconds = mktimegm(tm);
682 else {
683 struct tm tmp = *tm;
684 tmp.tm_isdst = -1; /* use timezone to figure it out */
685 seconds = mktime(&tmp);
687 else
688 seconds = mktimegm(tm) + rtc_date_offset;
690 return seconds - time(NULL);
693 void rtc_change_mon_event(struct tm *tm)
695 QObject *data;
697 data = qobject_from_jsonf("{ 'offset': %d }", qemu_timedate_diff(tm));
698 monitor_protocol_event(QEVENT_RTC_CHANGE, data);
699 qobject_decref(data);
702 static void configure_rtc_date_offset(const char *startdate, int legacy)
704 time_t rtc_start_date;
705 struct tm tm;
707 if (!strcmp(startdate, "now") && legacy) {
708 rtc_date_offset = -1;
709 } else {
710 if (sscanf(startdate, "%d-%d-%dT%d:%d:%d",
711 &tm.tm_year,
712 &tm.tm_mon,
713 &tm.tm_mday,
714 &tm.tm_hour,
715 &tm.tm_min,
716 &tm.tm_sec) == 6) {
717 /* OK */
718 } else if (sscanf(startdate, "%d-%d-%d",
719 &tm.tm_year,
720 &tm.tm_mon,
721 &tm.tm_mday) == 3) {
722 tm.tm_hour = 0;
723 tm.tm_min = 0;
724 tm.tm_sec = 0;
725 } else {
726 goto date_fail;
728 tm.tm_year -= 1900;
729 tm.tm_mon--;
730 rtc_start_date = mktimegm(&tm);
731 if (rtc_start_date == -1) {
732 date_fail:
733 fprintf(stderr, "Invalid date format. Valid formats are:\n"
734 "'2006-06-17T16:01:21' or '2006-06-17'\n");
735 exit(1);
737 rtc_date_offset = time(NULL) - rtc_start_date;
741 static void configure_rtc(QemuOpts *opts)
743 const char *value;
745 value = qemu_opt_get(opts, "base");
746 if (value) {
747 if (!strcmp(value, "utc")) {
748 rtc_utc = 1;
749 } else if (!strcmp(value, "localtime")) {
750 rtc_utc = 0;
751 } else {
752 configure_rtc_date_offset(value, 0);
755 value = qemu_opt_get(opts, "clock");
756 if (value) {
757 if (!strcmp(value, "host")) {
758 rtc_clock = QEMU_CLOCK_HOST;
759 } else if (!strcmp(value, "rt")) {
760 rtc_clock = QEMU_CLOCK_REALTIME;
761 } else if (!strcmp(value, "vm")) {
762 rtc_clock = QEMU_CLOCK_VIRTUAL;
763 } else {
764 fprintf(stderr, "qemu: invalid option value '%s'\n", value);
765 exit(1);
768 value = qemu_opt_get(opts, "driftfix");
769 if (value) {
770 if (!strcmp(value, "slew")) {
771 static GlobalProperty slew_lost_ticks[] = {
773 .driver = "mc146818rtc",
774 .property = "lost_tick_policy",
775 .value = "slew",
777 { /* end of list */ }
780 qdev_prop_register_global_list(slew_lost_ticks);
781 } else if (!strcmp(value, "none")) {
782 /* discard is default */
783 } else {
784 fprintf(stderr, "qemu: invalid option value '%s'\n", value);
785 exit(1);
790 /***********************************************************/
791 /* Bluetooth support */
792 static int nb_hcis;
793 static int cur_hci;
794 static struct HCIInfo *hci_table[MAX_NICS];
796 struct HCIInfo *qemu_next_hci(void)
798 if (cur_hci == nb_hcis)
799 return &null_hci;
801 return hci_table[cur_hci++];
804 static int bt_hci_parse(const char *str)
806 struct HCIInfo *hci;
807 bdaddr_t bdaddr;
809 if (nb_hcis >= MAX_NICS) {
810 fprintf(stderr, "qemu: Too many bluetooth HCIs (max %i).\n", MAX_NICS);
811 return -1;
814 hci = hci_init(str);
815 if (!hci)
816 return -1;
818 bdaddr.b[0] = 0x52;
819 bdaddr.b[1] = 0x54;
820 bdaddr.b[2] = 0x00;
821 bdaddr.b[3] = 0x12;
822 bdaddr.b[4] = 0x34;
823 bdaddr.b[5] = 0x56 + nb_hcis;
824 hci->bdaddr_set(hci, bdaddr.b);
826 hci_table[nb_hcis++] = hci;
828 return 0;
831 static void bt_vhci_add(int vlan_id)
833 struct bt_scatternet_s *vlan = qemu_find_bt_vlan(vlan_id);
835 if (!vlan->slave)
836 fprintf(stderr, "qemu: warning: adding a VHCI to "
837 "an empty scatternet %i\n", vlan_id);
839 bt_vhci_init(bt_new_hci(vlan));
842 static struct bt_device_s *bt_device_add(const char *opt)
844 struct bt_scatternet_s *vlan;
845 int vlan_id = 0;
846 char *endp = strstr(opt, ",vlan=");
847 int len = (endp ? endp - opt : strlen(opt)) + 1;
848 char devname[10];
850 pstrcpy(devname, MIN(sizeof(devname), len), opt);
852 if (endp) {
853 vlan_id = strtol(endp + 6, &endp, 0);
854 if (*endp) {
855 fprintf(stderr, "qemu: unrecognised bluetooth vlan Id\n");
856 return 0;
860 vlan = qemu_find_bt_vlan(vlan_id);
862 if (!vlan->slave)
863 fprintf(stderr, "qemu: warning: adding a slave device to "
864 "an empty scatternet %i\n", vlan_id);
866 if (!strcmp(devname, "keyboard"))
867 return bt_keyboard_init(vlan);
869 fprintf(stderr, "qemu: unsupported bluetooth device `%s'\n", devname);
870 return 0;
873 static int bt_parse(const char *opt)
875 const char *endp, *p;
876 int vlan;
878 if (strstart(opt, "hci", &endp)) {
879 if (!*endp || *endp == ',') {
880 if (*endp)
881 if (!strstart(endp, ",vlan=", 0))
882 opt = endp + 1;
884 return bt_hci_parse(opt);
886 } else if (strstart(opt, "vhci", &endp)) {
887 if (!*endp || *endp == ',') {
888 if (*endp) {
889 if (strstart(endp, ",vlan=", &p)) {
890 vlan = strtol(p, (char **) &endp, 0);
891 if (*endp) {
892 fprintf(stderr, "qemu: bad scatternet '%s'\n", p);
893 return 1;
895 } else {
896 fprintf(stderr, "qemu: bad parameter '%s'\n", endp + 1);
897 return 1;
899 } else
900 vlan = 0;
902 bt_vhci_add(vlan);
903 return 0;
905 } else if (strstart(opt, "device:", &endp))
906 return !bt_device_add(endp);
908 fprintf(stderr, "qemu: bad bluetooth parameter '%s'\n", opt);
909 return 1;
912 static int parse_sandbox(QemuOpts *opts, void *opaque)
914 /* FIXME: change this to true for 1.3 */
915 if (qemu_opt_get_bool(opts, "enable", false)) {
916 #ifdef CONFIG_SECCOMP
917 if (seccomp_start() < 0) {
918 qerror_report(ERROR_CLASS_GENERIC_ERROR,
919 "failed to install seccomp syscall filter in the kernel");
920 return -1;
922 #else
923 qerror_report(ERROR_CLASS_GENERIC_ERROR,
924 "sandboxing request but seccomp is not compiled into this build");
925 return -1;
926 #endif
929 return 0;
932 bool usb_enabled(bool default_usb)
934 return qemu_opt_get_bool(qemu_get_machine_opts(), "usb", default_usb);
937 #ifndef _WIN32
938 static int parse_add_fd(QemuOpts *opts, void *opaque)
940 int fd, dupfd, flags;
941 int64_t fdset_id;
942 const char *fd_opaque = NULL;
944 fd = qemu_opt_get_number(opts, "fd", -1);
945 fdset_id = qemu_opt_get_number(opts, "set", -1);
946 fd_opaque = qemu_opt_get(opts, "opaque");
948 if (fd < 0) {
949 qerror_report(ERROR_CLASS_GENERIC_ERROR,
950 "fd option is required and must be non-negative");
951 return -1;
954 if (fd <= STDERR_FILENO) {
955 qerror_report(ERROR_CLASS_GENERIC_ERROR,
956 "fd cannot be a standard I/O stream");
957 return -1;
961 * All fds inherited across exec() necessarily have FD_CLOEXEC
962 * clear, while qemu sets FD_CLOEXEC on all other fds used internally.
964 flags = fcntl(fd, F_GETFD);
965 if (flags == -1 || (flags & FD_CLOEXEC)) {
966 qerror_report(ERROR_CLASS_GENERIC_ERROR,
967 "fd is not valid or already in use");
968 return -1;
971 if (fdset_id < 0) {
972 qerror_report(ERROR_CLASS_GENERIC_ERROR,
973 "set option is required and must be non-negative");
974 return -1;
977 #ifdef F_DUPFD_CLOEXEC
978 dupfd = fcntl(fd, F_DUPFD_CLOEXEC, 0);
979 #else
980 dupfd = dup(fd);
981 if (dupfd != -1) {
982 qemu_set_cloexec(dupfd);
984 #endif
985 if (dupfd == -1) {
986 qerror_report(ERROR_CLASS_GENERIC_ERROR,
987 "Error duplicating fd: %s", strerror(errno));
988 return -1;
991 /* add the duplicate fd, and optionally the opaque string, to the fd set */
992 monitor_fdset_add_fd(dupfd, true, fdset_id, fd_opaque ? true : false,
993 fd_opaque, NULL);
995 return 0;
998 static int cleanup_add_fd(QemuOpts *opts, void *opaque)
1000 int fd;
1002 fd = qemu_opt_get_number(opts, "fd", -1);
1003 close(fd);
1005 return 0;
1007 #endif
1009 /***********************************************************/
1010 /* QEMU Block devices */
1012 #define HD_OPTS "media=disk"
1013 #define CDROM_OPTS "media=cdrom"
1014 #define FD_OPTS ""
1015 #define PFLASH_OPTS ""
1016 #define MTD_OPTS ""
1017 #define SD_OPTS ""
1019 static int drive_init_func(QemuOpts *opts, void *opaque)
1021 BlockInterfaceType *block_default_type = opaque;
1023 return drive_init(opts, *block_default_type) == NULL;
1026 static int drive_enable_snapshot(QemuOpts *opts, void *opaque)
1028 if (NULL == qemu_opt_get(opts, "snapshot")) {
1029 qemu_opt_set(opts, "snapshot", "on");
1031 return 0;
1034 static void default_drive(int enable, int snapshot, BlockInterfaceType type,
1035 int index, const char *optstr)
1037 QemuOpts *opts;
1039 if (!enable || drive_get_by_index(type, index)) {
1040 return;
1043 opts = drive_add(type, index, NULL, optstr);
1044 if (snapshot) {
1045 drive_enable_snapshot(opts, NULL);
1047 if (!drive_init(opts, type)) {
1048 exit(1);
1052 void qemu_register_boot_set(QEMUBootSetHandler *func, void *opaque)
1054 boot_set_handler = func;
1055 boot_set_opaque = opaque;
1058 int qemu_boot_set(const char *boot_order)
1060 if (!boot_set_handler) {
1061 return -EINVAL;
1063 return boot_set_handler(boot_set_opaque, boot_order);
1066 static void validate_bootdevices(const char *devices)
1068 /* We just do some generic consistency checks */
1069 const char *p;
1070 int bitmap = 0;
1072 for (p = devices; *p != '\0'; p++) {
1073 /* Allowed boot devices are:
1074 * a-b: floppy disk drives
1075 * c-f: IDE disk drives
1076 * g-m: machine implementation dependent drives
1077 * n-p: network devices
1078 * It's up to each machine implementation to check if the given boot
1079 * devices match the actual hardware implementation and firmware
1080 * features.
1082 if (*p < 'a' || *p > 'p') {
1083 fprintf(stderr, "Invalid boot device '%c'\n", *p);
1084 exit(1);
1086 if (bitmap & (1 << (*p - 'a'))) {
1087 fprintf(stderr, "Boot device '%c' was given twice\n", *p);
1088 exit(1);
1090 bitmap |= 1 << (*p - 'a');
1094 static void restore_boot_order(void *opaque)
1096 char *normal_boot_order = opaque;
1097 static int first = 1;
1099 /* Restore boot order and remove ourselves after the first boot */
1100 if (first) {
1101 first = 0;
1102 return;
1105 qemu_boot_set(normal_boot_order);
1107 qemu_unregister_reset(restore_boot_order, normal_boot_order);
1108 g_free(normal_boot_order);
1111 void add_boot_device_path(int32_t bootindex, DeviceState *dev,
1112 const char *suffix)
1114 FWBootEntry *node, *i;
1116 if (bootindex < 0) {
1117 return;
1120 assert(dev != NULL || suffix != NULL);
1122 node = g_malloc0(sizeof(FWBootEntry));
1123 node->bootindex = bootindex;
1124 node->suffix = g_strdup(suffix);
1125 node->dev = dev;
1127 QTAILQ_FOREACH(i, &fw_boot_order, link) {
1128 if (i->bootindex == bootindex) {
1129 fprintf(stderr, "Two devices with same boot index %d\n", bootindex);
1130 exit(1);
1131 } else if (i->bootindex < bootindex) {
1132 continue;
1134 QTAILQ_INSERT_BEFORE(i, node, link);
1135 return;
1137 QTAILQ_INSERT_TAIL(&fw_boot_order, node, link);
1140 DeviceState *get_boot_device(uint32_t position)
1142 uint32_t counter = 0;
1143 FWBootEntry *i = NULL;
1144 DeviceState *res = NULL;
1146 if (!QTAILQ_EMPTY(&fw_boot_order)) {
1147 QTAILQ_FOREACH(i, &fw_boot_order, link) {
1148 if (counter == position) {
1149 res = i->dev;
1150 break;
1152 counter++;
1155 return res;
1159 * This function returns null terminated string that consist of new line
1160 * separated device paths.
1162 * memory pointed by "size" is assigned total length of the array in bytes
1165 char *get_boot_devices_list(size_t *size)
1167 FWBootEntry *i;
1168 size_t total = 0;
1169 char *list = NULL;
1171 QTAILQ_FOREACH(i, &fw_boot_order, link) {
1172 char *devpath = NULL, *bootpath;
1173 size_t len;
1175 if (i->dev) {
1176 devpath = qdev_get_fw_dev_path(i->dev);
1177 assert(devpath);
1180 if (i->suffix && devpath) {
1181 size_t bootpathlen = strlen(devpath) + strlen(i->suffix) + 1;
1183 bootpath = g_malloc(bootpathlen);
1184 snprintf(bootpath, bootpathlen, "%s%s", devpath, i->suffix);
1185 g_free(devpath);
1186 } else if (devpath) {
1187 bootpath = devpath;
1188 } else {
1189 assert(i->suffix);
1190 bootpath = g_strdup(i->suffix);
1193 if (total) {
1194 list[total-1] = '\n';
1196 len = strlen(bootpath) + 1;
1197 list = g_realloc(list, total + len);
1198 memcpy(&list[total], bootpath, len);
1199 total += len;
1200 g_free(bootpath);
1203 *size = total;
1205 if (boot_strict && *size > 0) {
1206 list[total-1] = '\n';
1207 list = g_realloc(list, total + 5);
1208 memcpy(&list[total], "HALT", 5);
1209 *size = total + 5;
1211 return list;
1214 static void numa_node_parse_cpus(int nodenr, const char *cpus)
1216 char *endptr;
1217 unsigned long long value, endvalue;
1219 /* Empty CPU range strings will be considered valid, they will simply
1220 * not set any bit in the CPU bitmap.
1222 if (!*cpus) {
1223 return;
1226 if (parse_uint(cpus, &value, &endptr, 10) < 0) {
1227 goto error;
1229 if (*endptr == '-') {
1230 if (parse_uint_full(endptr + 1, &endvalue, 10) < 0) {
1231 goto error;
1233 } else if (*endptr == '\0') {
1234 endvalue = value;
1235 } else {
1236 goto error;
1239 if (endvalue >= MAX_CPUMASK_BITS) {
1240 endvalue = MAX_CPUMASK_BITS - 1;
1241 fprintf(stderr,
1242 "qemu: NUMA: A max of %d VCPUs are supported\n",
1243 MAX_CPUMASK_BITS);
1246 if (endvalue < value) {
1247 goto error;
1250 bitmap_set(node_cpumask[nodenr], value, endvalue-value+1);
1251 return;
1253 error:
1254 fprintf(stderr, "qemu: Invalid NUMA CPU range: %s\n", cpus);
1255 exit(1);
1258 static void numa_add(const char *optarg)
1260 char option[128];
1261 char *endptr;
1262 unsigned long long nodenr;
1264 optarg = get_opt_name(option, 128, optarg, ',');
1265 if (*optarg == ',') {
1266 optarg++;
1268 if (!strcmp(option, "node")) {
1270 if (nb_numa_nodes >= MAX_NODES) {
1271 fprintf(stderr, "qemu: too many NUMA nodes\n");
1272 exit(1);
1275 if (get_param_value(option, 128, "nodeid", optarg) == 0) {
1276 nodenr = nb_numa_nodes;
1277 } else {
1278 if (parse_uint_full(option, &nodenr, 10) < 0) {
1279 fprintf(stderr, "qemu: Invalid NUMA nodeid: %s\n", option);
1280 exit(1);
1284 if (nodenr >= MAX_NODES) {
1285 fprintf(stderr, "qemu: invalid NUMA nodeid: %llu\n", nodenr);
1286 exit(1);
1289 if (get_param_value(option, 128, "mem", optarg) == 0) {
1290 node_mem[nodenr] = 0;
1291 } else {
1292 int64_t sval;
1293 sval = strtosz(option, &endptr);
1294 if (sval < 0 || *endptr) {
1295 fprintf(stderr, "qemu: invalid numa mem size: %s\n", optarg);
1296 exit(1);
1298 node_mem[nodenr] = sval;
1300 if (get_param_value(option, 128, "cpus", optarg) != 0) {
1301 numa_node_parse_cpus(nodenr, option);
1303 nb_numa_nodes++;
1304 } else {
1305 fprintf(stderr, "Invalid -numa option: %s\n", option);
1306 exit(1);
1310 static QemuOptsList qemu_smp_opts = {
1311 .name = "smp-opts",
1312 .implied_opt_name = "cpus",
1313 .merge_lists = true,
1314 .head = QTAILQ_HEAD_INITIALIZER(qemu_smp_opts.head),
1315 .desc = {
1317 .name = "cpus",
1318 .type = QEMU_OPT_NUMBER,
1319 }, {
1320 .name = "sockets",
1321 .type = QEMU_OPT_NUMBER,
1322 }, {
1323 .name = "cores",
1324 .type = QEMU_OPT_NUMBER,
1325 }, {
1326 .name = "threads",
1327 .type = QEMU_OPT_NUMBER,
1328 }, {
1329 .name = "maxcpus",
1330 .type = QEMU_OPT_NUMBER,
1332 { /*End of list */ }
1336 static void smp_parse(QemuOpts *opts)
1338 if (opts) {
1340 unsigned cpus = qemu_opt_get_number(opts, "cpus", 0);
1341 unsigned sockets = qemu_opt_get_number(opts, "sockets", 0);
1342 unsigned cores = qemu_opt_get_number(opts, "cores", 0);
1343 unsigned threads = qemu_opt_get_number(opts, "threads", 0);
1345 /* compute missing values, prefer sockets over cores over threads */
1346 if (cpus == 0 || sockets == 0) {
1347 sockets = sockets > 0 ? sockets : 1;
1348 cores = cores > 0 ? cores : 1;
1349 threads = threads > 0 ? threads : 1;
1350 if (cpus == 0) {
1351 cpus = cores * threads * sockets;
1353 } else {
1354 if (cores == 0) {
1355 threads = threads > 0 ? threads : 1;
1356 cores = cpus / (sockets * threads);
1357 } else {
1358 threads = cpus / (cores * sockets);
1362 max_cpus = qemu_opt_get_number(opts, "maxcpus", 0);
1364 smp_cpus = cpus;
1365 smp_cores = cores > 0 ? cores : 1;
1366 smp_threads = threads > 0 ? threads : 1;
1370 if (max_cpus == 0) {
1371 max_cpus = smp_cpus;
1374 if (max_cpus > 255) {
1375 fprintf(stderr, "Unsupported number of maxcpus\n");
1376 exit(1);
1378 if (max_cpus < smp_cpus) {
1379 fprintf(stderr, "maxcpus must be equal to or greater than smp\n");
1380 exit(1);
1385 static void configure_realtime(QemuOpts *opts)
1387 bool enable_mlock;
1389 enable_mlock = qemu_opt_get_bool(opts, "mlock", true);
1391 if (enable_mlock) {
1392 if (os_mlock() < 0) {
1393 fprintf(stderr, "qemu: locking memory failed\n");
1394 exit(1);
1400 static void configure_msg(QemuOpts *opts)
1402 enable_timestamp_msg = qemu_opt_get_bool(opts, "timestamp", true);
1405 /***********************************************************/
1406 /* USB devices */
1408 static int usb_device_add(const char *devname)
1410 USBDevice *dev = NULL;
1411 #ifndef CONFIG_LINUX
1412 const char *p;
1413 #endif
1415 if (!usb_enabled(false)) {
1416 return -1;
1419 /* drivers with .usbdevice_name entry in USBDeviceInfo */
1420 dev = usbdevice_create(devname);
1421 if (dev)
1422 goto done;
1424 /* the other ones */
1425 #ifndef CONFIG_LINUX
1426 /* only the linux version is qdev-ified, usb-bsd still needs this */
1427 if (strstart(devname, "host:", &p)) {
1428 dev = usb_host_device_open(usb_bus_find(-1), p);
1430 #endif
1431 if (!dev)
1432 return -1;
1434 done:
1435 return 0;
1438 static int usb_device_del(const char *devname)
1440 int bus_num, addr;
1441 const char *p;
1443 if (strstart(devname, "host:", &p)) {
1444 return -1;
1447 if (!usb_enabled(false)) {
1448 return -1;
1451 p = strchr(devname, '.');
1452 if (!p)
1453 return -1;
1454 bus_num = strtoul(devname, NULL, 0);
1455 addr = strtoul(p + 1, NULL, 0);
1457 return usb_device_delete_addr(bus_num, addr);
1460 static int usb_parse(const char *cmdline)
1462 int r;
1463 r = usb_device_add(cmdline);
1464 if (r < 0) {
1465 fprintf(stderr, "qemu: could not add USB device '%s'\n", cmdline);
1467 return r;
1470 void do_usb_add(Monitor *mon, const QDict *qdict)
1472 const char *devname = qdict_get_str(qdict, "devname");
1473 if (usb_device_add(devname) < 0) {
1474 error_report("could not add USB device '%s'", devname);
1478 void do_usb_del(Monitor *mon, const QDict *qdict)
1480 const char *devname = qdict_get_str(qdict, "devname");
1481 if (usb_device_del(devname) < 0) {
1482 error_report("could not delete USB device '%s'", devname);
1486 /***********************************************************/
1487 /* PCMCIA/Cardbus */
1489 static struct pcmcia_socket_entry_s {
1490 PCMCIASocket *socket;
1491 struct pcmcia_socket_entry_s *next;
1492 } *pcmcia_sockets = 0;
1494 void pcmcia_socket_register(PCMCIASocket *socket)
1496 struct pcmcia_socket_entry_s *entry;
1498 entry = g_malloc(sizeof(struct pcmcia_socket_entry_s));
1499 entry->socket = socket;
1500 entry->next = pcmcia_sockets;
1501 pcmcia_sockets = entry;
1504 void pcmcia_socket_unregister(PCMCIASocket *socket)
1506 struct pcmcia_socket_entry_s *entry, **ptr;
1508 ptr = &pcmcia_sockets;
1509 for (entry = *ptr; entry; ptr = &entry->next, entry = *ptr)
1510 if (entry->socket == socket) {
1511 *ptr = entry->next;
1512 g_free(entry);
1516 void pcmcia_info(Monitor *mon, const QDict *qdict)
1518 struct pcmcia_socket_entry_s *iter;
1520 if (!pcmcia_sockets)
1521 monitor_printf(mon, "No PCMCIA sockets\n");
1523 for (iter = pcmcia_sockets; iter; iter = iter->next)
1524 monitor_printf(mon, "%s: %s\n", iter->socket->slot_string,
1525 iter->socket->attached ? iter->socket->card_string :
1526 "Empty");
1529 /***********************************************************/
1530 /* machine registration */
1532 static QEMUMachine *first_machine = NULL;
1533 QEMUMachine *current_machine = NULL;
1535 int qemu_register_machine(QEMUMachine *m)
1537 QEMUMachine **pm;
1538 pm = &first_machine;
1539 while (*pm != NULL)
1540 pm = &(*pm)->next;
1541 m->next = NULL;
1542 *pm = m;
1543 return 0;
1546 static QEMUMachine *find_machine(const char *name)
1548 QEMUMachine *m;
1550 for(m = first_machine; m != NULL; m = m->next) {
1551 if (!strcmp(m->name, name))
1552 return m;
1553 if (m->alias && !strcmp(m->alias, name))
1554 return m;
1556 return NULL;
1559 QEMUMachine *find_default_machine(void)
1561 QEMUMachine *m;
1563 for(m = first_machine; m != NULL; m = m->next) {
1564 if (m->is_default) {
1565 return m;
1568 return NULL;
1571 MachineInfoList *qmp_query_machines(Error **errp)
1573 MachineInfoList *mach_list = NULL;
1574 QEMUMachine *m;
1576 for (m = first_machine; m; m = m->next) {
1577 MachineInfoList *entry;
1578 MachineInfo *info;
1580 info = g_malloc0(sizeof(*info));
1581 if (m->is_default) {
1582 info->has_is_default = true;
1583 info->is_default = true;
1586 if (m->alias) {
1587 info->has_alias = true;
1588 info->alias = g_strdup(m->alias);
1591 info->name = g_strdup(m->name);
1592 info->cpu_max = !m->max_cpus ? 1 : m->max_cpus;
1594 entry = g_malloc0(sizeof(*entry));
1595 entry->value = info;
1596 entry->next = mach_list;
1597 mach_list = entry;
1600 return mach_list;
1603 /***********************************************************/
1604 /* main execution loop */
1606 struct vm_change_state_entry {
1607 VMChangeStateHandler *cb;
1608 void *opaque;
1609 QLIST_ENTRY (vm_change_state_entry) entries;
1612 static QLIST_HEAD(vm_change_state_head, vm_change_state_entry) vm_change_state_head;
1614 VMChangeStateEntry *qemu_add_vm_change_state_handler(VMChangeStateHandler *cb,
1615 void *opaque)
1617 VMChangeStateEntry *e;
1619 e = g_malloc0(sizeof (*e));
1621 e->cb = cb;
1622 e->opaque = opaque;
1623 QLIST_INSERT_HEAD(&vm_change_state_head, e, entries);
1624 return e;
1627 void qemu_del_vm_change_state_handler(VMChangeStateEntry *e)
1629 QLIST_REMOVE (e, entries);
1630 g_free (e);
1633 void vm_state_notify(int running, RunState state)
1635 VMChangeStateEntry *e;
1637 trace_vm_state_notify(running, state);
1639 for (e = vm_change_state_head.lh_first; e; e = e->entries.le_next) {
1640 e->cb(e->opaque, running, state);
1644 void vm_start(void)
1646 if (!runstate_is_running()) {
1647 cpu_enable_ticks();
1648 runstate_set(RUN_STATE_RUNNING);
1649 vm_state_notify(1, RUN_STATE_RUNNING);
1650 resume_all_vcpus();
1651 monitor_protocol_event(QEVENT_RESUME, NULL);
1655 /* reset/shutdown handler */
1657 typedef struct QEMUResetEntry {
1658 QTAILQ_ENTRY(QEMUResetEntry) entry;
1659 QEMUResetHandler *func;
1660 void *opaque;
1661 } QEMUResetEntry;
1663 static QTAILQ_HEAD(reset_handlers, QEMUResetEntry) reset_handlers =
1664 QTAILQ_HEAD_INITIALIZER(reset_handlers);
1665 static int reset_requested;
1666 static int shutdown_requested, shutdown_signal = -1;
1667 static pid_t shutdown_pid;
1668 static int powerdown_requested;
1669 static int debug_requested;
1670 static int suspend_requested;
1671 static WakeupReason wakeup_reason;
1672 static NotifierList powerdown_notifiers =
1673 NOTIFIER_LIST_INITIALIZER(powerdown_notifiers);
1674 static NotifierList suspend_notifiers =
1675 NOTIFIER_LIST_INITIALIZER(suspend_notifiers);
1676 static NotifierList wakeup_notifiers =
1677 NOTIFIER_LIST_INITIALIZER(wakeup_notifiers);
1678 static uint32_t wakeup_reason_mask = ~(1 << QEMU_WAKEUP_REASON_NONE);
1679 static RunState vmstop_requested = RUN_STATE_MAX;
1681 int qemu_shutdown_requested_get(void)
1683 return shutdown_requested;
1686 int qemu_reset_requested_get(void)
1688 return reset_requested;
1691 static int qemu_shutdown_requested(void)
1693 int r = shutdown_requested;
1694 shutdown_requested = 0;
1695 return r;
1698 static void qemu_kill_report(void)
1700 if (!qtest_driver() && shutdown_signal != -1) {
1701 fprintf(stderr, "qemu: terminating on signal %d", shutdown_signal);
1702 if (shutdown_pid == 0) {
1703 /* This happens for eg ^C at the terminal, so it's worth
1704 * avoiding printing an odd message in that case.
1706 fputc('\n', stderr);
1707 } else {
1708 fprintf(stderr, " from pid " FMT_pid "\n", shutdown_pid);
1710 shutdown_signal = -1;
1714 static int qemu_reset_requested(void)
1716 int r = reset_requested;
1717 reset_requested = 0;
1718 return r;
1721 static int qemu_suspend_requested(void)
1723 int r = suspend_requested;
1724 suspend_requested = 0;
1725 return r;
1728 static WakeupReason qemu_wakeup_requested(void)
1730 return wakeup_reason;
1733 static int qemu_powerdown_requested(void)
1735 int r = powerdown_requested;
1736 powerdown_requested = 0;
1737 return r;
1740 static int qemu_debug_requested(void)
1742 int r = debug_requested;
1743 debug_requested = 0;
1744 return r;
1747 /* We use RUN_STATE_MAX but any invalid value will do */
1748 static bool qemu_vmstop_requested(RunState *r)
1750 if (vmstop_requested < RUN_STATE_MAX) {
1751 *r = vmstop_requested;
1752 vmstop_requested = RUN_STATE_MAX;
1753 return true;
1756 return false;
1759 void qemu_register_reset(QEMUResetHandler *func, void *opaque)
1761 QEMUResetEntry *re = g_malloc0(sizeof(QEMUResetEntry));
1763 re->func = func;
1764 re->opaque = opaque;
1765 QTAILQ_INSERT_TAIL(&reset_handlers, re, entry);
1768 void qemu_unregister_reset(QEMUResetHandler *func, void *opaque)
1770 QEMUResetEntry *re;
1772 QTAILQ_FOREACH(re, &reset_handlers, entry) {
1773 if (re->func == func && re->opaque == opaque) {
1774 QTAILQ_REMOVE(&reset_handlers, re, entry);
1775 g_free(re);
1776 return;
1781 void qemu_devices_reset(void)
1783 QEMUResetEntry *re, *nre;
1785 /* reset all devices */
1786 QTAILQ_FOREACH_SAFE(re, &reset_handlers, entry, nre) {
1787 re->func(re->opaque);
1791 void qemu_system_reset(bool report)
1793 if (current_machine && current_machine->reset) {
1794 current_machine->reset();
1795 } else {
1796 qemu_devices_reset();
1798 if (report) {
1799 monitor_protocol_event(QEVENT_RESET, NULL);
1801 cpu_synchronize_all_post_reset();
1804 void qemu_system_reset_request(void)
1806 if (no_reboot) {
1807 shutdown_requested = 1;
1808 } else {
1809 reset_requested = 1;
1811 cpu_stop_current();
1812 qemu_notify_event();
1815 static void qemu_system_suspend(void)
1817 pause_all_vcpus();
1818 notifier_list_notify(&suspend_notifiers, NULL);
1819 runstate_set(RUN_STATE_SUSPENDED);
1820 monitor_protocol_event(QEVENT_SUSPEND, NULL);
1823 void qemu_system_suspend_request(void)
1825 if (runstate_check(RUN_STATE_SUSPENDED)) {
1826 return;
1828 suspend_requested = 1;
1829 cpu_stop_current();
1830 qemu_notify_event();
1833 void qemu_register_suspend_notifier(Notifier *notifier)
1835 notifier_list_add(&suspend_notifiers, notifier);
1838 void qemu_system_wakeup_request(WakeupReason reason)
1840 if (!runstate_check(RUN_STATE_SUSPENDED)) {
1841 return;
1843 if (!(wakeup_reason_mask & (1 << reason))) {
1844 return;
1846 runstate_set(RUN_STATE_RUNNING);
1847 wakeup_reason = reason;
1848 qemu_notify_event();
1851 void qemu_system_wakeup_enable(WakeupReason reason, bool enabled)
1853 if (enabled) {
1854 wakeup_reason_mask |= (1 << reason);
1855 } else {
1856 wakeup_reason_mask &= ~(1 << reason);
1860 void qemu_register_wakeup_notifier(Notifier *notifier)
1862 notifier_list_add(&wakeup_notifiers, notifier);
1865 void qemu_system_killed(int signal, pid_t pid)
1867 shutdown_signal = signal;
1868 shutdown_pid = pid;
1869 no_shutdown = 0;
1870 qemu_system_shutdown_request();
1873 void qemu_system_shutdown_request(void)
1875 shutdown_requested = 1;
1876 qemu_notify_event();
1879 static void qemu_system_powerdown(void)
1881 monitor_protocol_event(QEVENT_POWERDOWN, NULL);
1882 notifier_list_notify(&powerdown_notifiers, NULL);
1885 void qemu_system_powerdown_request(void)
1887 powerdown_requested = 1;
1888 qemu_notify_event();
1891 void qemu_register_powerdown_notifier(Notifier *notifier)
1893 notifier_list_add(&powerdown_notifiers, notifier);
1896 void qemu_system_debug_request(void)
1898 debug_requested = 1;
1899 qemu_notify_event();
1902 void qemu_system_vmstop_request(RunState state)
1904 vmstop_requested = state;
1905 qemu_notify_event();
1908 static bool main_loop_should_exit(void)
1910 RunState r;
1911 if (qemu_debug_requested()) {
1912 vm_stop(RUN_STATE_DEBUG);
1914 if (qemu_suspend_requested()) {
1915 qemu_system_suspend();
1917 if (qemu_shutdown_requested()) {
1918 qemu_kill_report();
1919 monitor_protocol_event(QEVENT_SHUTDOWN, NULL);
1920 if (no_shutdown) {
1921 vm_stop(RUN_STATE_SHUTDOWN);
1922 } else {
1923 return true;
1926 if (qemu_reset_requested()) {
1927 pause_all_vcpus();
1928 cpu_synchronize_all_states();
1929 qemu_system_reset(VMRESET_REPORT);
1930 resume_all_vcpus();
1931 if (runstate_needs_reset()) {
1932 runstate_set(RUN_STATE_PAUSED);
1935 if (qemu_wakeup_requested()) {
1936 pause_all_vcpus();
1937 cpu_synchronize_all_states();
1938 qemu_system_reset(VMRESET_SILENT);
1939 notifier_list_notify(&wakeup_notifiers, &wakeup_reason);
1940 wakeup_reason = QEMU_WAKEUP_REASON_NONE;
1941 resume_all_vcpus();
1942 monitor_protocol_event(QEVENT_WAKEUP, NULL);
1944 if (qemu_powerdown_requested()) {
1945 qemu_system_powerdown();
1947 if (qemu_vmstop_requested(&r)) {
1948 vm_stop(r);
1950 return false;
1953 static void main_loop(void)
1955 bool nonblocking;
1956 int last_io = 0;
1957 #ifdef CONFIG_PROFILER
1958 int64_t ti;
1959 #endif
1960 do {
1961 nonblocking = !kvm_enabled() && !xen_enabled() && last_io > 0;
1962 #ifdef CONFIG_PROFILER
1963 ti = profile_getclock();
1964 #endif
1965 last_io = main_loop_wait(nonblocking);
1966 #ifdef CONFIG_PROFILER
1967 dev_time += profile_getclock() - ti;
1968 #endif
1969 } while (!main_loop_should_exit());
1972 static void version(void)
1974 printf("QEMU emulator version " QEMU_VERSION QEMU_PKGVERSION ", Copyright (c) 2003-2008 Fabrice Bellard\n");
1977 static void help(int exitcode)
1979 version();
1980 printf("usage: %s [options] [disk_image]\n\n"
1981 "'disk_image' is a raw hard disk image for IDE hard disk 0\n\n",
1982 error_get_progname());
1984 #define QEMU_OPTIONS_GENERATE_HELP
1985 #include "qemu-options-wrapper.h"
1987 printf("\nDuring emulation, the following keys are useful:\n"
1988 "ctrl-alt-f toggle full screen\n"
1989 "ctrl-alt-n switch to virtual console 'n'\n"
1990 "ctrl-alt toggle mouse and keyboard grab\n"
1991 "\n"
1992 "When using -nographic, press 'ctrl-a h' to get some help.\n");
1994 exit(exitcode);
1997 #define HAS_ARG 0x0001
1999 typedef struct QEMUOption {
2000 const char *name;
2001 int flags;
2002 int index;
2003 uint32_t arch_mask;
2004 } QEMUOption;
2006 static const QEMUOption qemu_options[] = {
2007 { "h", 0, QEMU_OPTION_h, QEMU_ARCH_ALL },
2008 #define QEMU_OPTIONS_GENERATE_OPTIONS
2009 #include "qemu-options-wrapper.h"
2010 { NULL },
2013 static bool vga_available(void)
2015 return object_class_by_name("VGA") || object_class_by_name("isa-vga");
2018 static bool cirrus_vga_available(void)
2020 return object_class_by_name("cirrus-vga")
2021 || object_class_by_name("isa-cirrus-vga");
2024 static bool vmware_vga_available(void)
2026 return object_class_by_name("vmware-svga");
2029 static bool qxl_vga_available(void)
2031 return object_class_by_name("qxl-vga");
2034 static void select_vgahw (const char *p)
2036 const char *opts;
2038 vga_interface_type = VGA_NONE;
2039 if (strstart(p, "std", &opts)) {
2040 if (vga_available()) {
2041 vga_interface_type = VGA_STD;
2042 } else {
2043 fprintf(stderr, "Error: standard VGA not available\n");
2044 exit(0);
2046 } else if (strstart(p, "cirrus", &opts)) {
2047 if (cirrus_vga_available()) {
2048 vga_interface_type = VGA_CIRRUS;
2049 } else {
2050 fprintf(stderr, "Error: Cirrus VGA not available\n");
2051 exit(0);
2053 } else if (strstart(p, "vmware", &opts)) {
2054 if (vmware_vga_available()) {
2055 vga_interface_type = VGA_VMWARE;
2056 } else {
2057 fprintf(stderr, "Error: VMWare SVGA not available\n");
2058 exit(0);
2060 } else if (strstart(p, "xenfb", &opts)) {
2061 vga_interface_type = VGA_XENFB;
2062 } else if (strstart(p, "qxl", &opts)) {
2063 if (qxl_vga_available()) {
2064 vga_interface_type = VGA_QXL;
2065 } else {
2066 fprintf(stderr, "Error: QXL VGA not available\n");
2067 exit(0);
2069 } else if (!strstart(p, "none", &opts)) {
2070 invalid_vga:
2071 fprintf(stderr, "Unknown vga type: %s\n", p);
2072 exit(1);
2074 while (*opts) {
2075 const char *nextopt;
2077 if (strstart(opts, ",retrace=", &nextopt)) {
2078 opts = nextopt;
2079 if (strstart(opts, "dumb", &nextopt))
2080 vga_retrace_method = VGA_RETRACE_DUMB;
2081 else if (strstart(opts, "precise", &nextopt))
2082 vga_retrace_method = VGA_RETRACE_PRECISE;
2083 else goto invalid_vga;
2084 } else goto invalid_vga;
2085 opts = nextopt;
2089 static DisplayType select_display(const char *p)
2091 const char *opts;
2092 DisplayType display = DT_DEFAULT;
2094 if (strstart(p, "sdl", &opts)) {
2095 #ifdef CONFIG_SDL
2096 display = DT_SDL;
2097 while (*opts) {
2098 const char *nextopt;
2100 if (strstart(opts, ",frame=", &nextopt)) {
2101 opts = nextopt;
2102 if (strstart(opts, "on", &nextopt)) {
2103 no_frame = 0;
2104 } else if (strstart(opts, "off", &nextopt)) {
2105 no_frame = 1;
2106 } else {
2107 goto invalid_sdl_args;
2109 } else if (strstart(opts, ",alt_grab=", &nextopt)) {
2110 opts = nextopt;
2111 if (strstart(opts, "on", &nextopt)) {
2112 alt_grab = 1;
2113 } else if (strstart(opts, "off", &nextopt)) {
2114 alt_grab = 0;
2115 } else {
2116 goto invalid_sdl_args;
2118 } else if (strstart(opts, ",ctrl_grab=", &nextopt)) {
2119 opts = nextopt;
2120 if (strstart(opts, "on", &nextopt)) {
2121 ctrl_grab = 1;
2122 } else if (strstart(opts, "off", &nextopt)) {
2123 ctrl_grab = 0;
2124 } else {
2125 goto invalid_sdl_args;
2127 } else if (strstart(opts, ",window_close=", &nextopt)) {
2128 opts = nextopt;
2129 if (strstart(opts, "on", &nextopt)) {
2130 no_quit = 0;
2131 } else if (strstart(opts, "off", &nextopt)) {
2132 no_quit = 1;
2133 } else {
2134 goto invalid_sdl_args;
2136 } else {
2137 invalid_sdl_args:
2138 fprintf(stderr, "Invalid SDL option string: %s\n", p);
2139 exit(1);
2141 opts = nextopt;
2143 #else
2144 fprintf(stderr, "SDL support is disabled\n");
2145 exit(1);
2146 #endif
2147 } else if (strstart(p, "vnc", &opts)) {
2148 #ifdef CONFIG_VNC
2149 display_remote++;
2151 if (*opts) {
2152 const char *nextopt;
2154 if (strstart(opts, "=", &nextopt)) {
2155 vnc_display = nextopt;
2158 if (!vnc_display) {
2159 fprintf(stderr, "VNC requires a display argument vnc=<display>\n");
2160 exit(1);
2162 #else
2163 fprintf(stderr, "VNC support is disabled\n");
2164 exit(1);
2165 #endif
2166 } else if (strstart(p, "curses", &opts)) {
2167 #ifdef CONFIG_CURSES
2168 display = DT_CURSES;
2169 #else
2170 fprintf(stderr, "Curses support is disabled\n");
2171 exit(1);
2172 #endif
2173 } else if (strstart(p, "gtk", &opts)) {
2174 #ifdef CONFIG_GTK
2175 display = DT_GTK;
2176 #else
2177 fprintf(stderr, "GTK support is disabled\n");
2178 exit(1);
2179 #endif
2180 } else if (strstart(p, "none", &opts)) {
2181 display = DT_NONE;
2182 } else {
2183 fprintf(stderr, "Unknown display type: %s\n", p);
2184 exit(1);
2187 return display;
2190 static int balloon_parse(const char *arg)
2192 QemuOpts *opts;
2194 if (strcmp(arg, "none") == 0) {
2195 return 0;
2198 if (!strncmp(arg, "virtio", 6)) {
2199 if (arg[6] == ',') {
2200 /* have params -> parse them */
2201 opts = qemu_opts_parse(qemu_find_opts("device"), arg+7, 0);
2202 if (!opts)
2203 return -1;
2204 } else {
2205 /* create empty opts */
2206 opts = qemu_opts_create(qemu_find_opts("device"), NULL, 0,
2207 &error_abort);
2209 qemu_opt_set(opts, "driver", "virtio-balloon");
2210 return 0;
2213 return -1;
2216 char *qemu_find_file(int type, const char *name)
2218 int i;
2219 const char *subdir;
2220 char *buf;
2222 /* Try the name as a straight path first */
2223 if (access(name, R_OK) == 0) {
2224 trace_load_file(name, name);
2225 return g_strdup(name);
2228 switch (type) {
2229 case QEMU_FILE_TYPE_BIOS:
2230 subdir = "";
2231 break;
2232 case QEMU_FILE_TYPE_KEYMAP:
2233 subdir = "keymaps/";
2234 break;
2235 default:
2236 abort();
2239 for (i = 0; i < data_dir_idx; i++) {
2240 buf = g_strdup_printf("%s/%s%s", data_dir[i], subdir, name);
2241 if (access(buf, R_OK) == 0) {
2242 trace_load_file(name, buf);
2243 return buf;
2245 g_free(buf);
2247 return NULL;
2250 static int device_help_func(QemuOpts *opts, void *opaque)
2252 return qdev_device_help(opts);
2255 static int device_init_func(QemuOpts *opts, void *opaque)
2257 DeviceState *dev;
2259 dev = qdev_device_add(opts);
2260 if (!dev)
2261 return -1;
2262 object_unref(OBJECT(dev));
2263 return 0;
2266 static int chardev_init_func(QemuOpts *opts, void *opaque)
2268 Error *local_err = NULL;
2270 qemu_chr_new_from_opts(opts, NULL, &local_err);
2271 if (local_err) {
2272 error_report("%s", error_get_pretty(local_err));
2273 error_free(local_err);
2274 return -1;
2276 return 0;
2279 #ifdef CONFIG_VIRTFS
2280 static int fsdev_init_func(QemuOpts *opts, void *opaque)
2282 int ret;
2283 ret = qemu_fsdev_add(opts);
2285 return ret;
2287 #endif
2289 static int mon_init_func(QemuOpts *opts, void *opaque)
2291 CharDriverState *chr;
2292 const char *chardev;
2293 const char *mode;
2294 int flags;
2296 mode = qemu_opt_get(opts, "mode");
2297 if (mode == NULL) {
2298 mode = "readline";
2300 if (strcmp(mode, "readline") == 0) {
2301 flags = MONITOR_USE_READLINE;
2302 } else if (strcmp(mode, "control") == 0) {
2303 flags = MONITOR_USE_CONTROL;
2304 } else {
2305 fprintf(stderr, "unknown monitor mode \"%s\"\n", mode);
2306 exit(1);
2309 if (qemu_opt_get_bool(opts, "pretty", 0))
2310 flags |= MONITOR_USE_PRETTY;
2312 if (qemu_opt_get_bool(opts, "default", 0))
2313 flags |= MONITOR_IS_DEFAULT;
2315 chardev = qemu_opt_get(opts, "chardev");
2316 chr = qemu_chr_find(chardev);
2317 if (chr == NULL) {
2318 fprintf(stderr, "chardev \"%s\" not found\n", chardev);
2319 exit(1);
2322 qemu_chr_fe_claim_no_fail(chr);
2323 monitor_init(chr, flags);
2324 return 0;
2327 static void monitor_parse(const char *optarg, const char *mode)
2329 static int monitor_device_index = 0;
2330 QemuOpts *opts;
2331 const char *p;
2332 char label[32];
2333 int def = 0;
2335 if (strstart(optarg, "chardev:", &p)) {
2336 snprintf(label, sizeof(label), "%s", p);
2337 } else {
2338 snprintf(label, sizeof(label), "compat_monitor%d",
2339 monitor_device_index);
2340 if (monitor_device_index == 0) {
2341 def = 1;
2343 opts = qemu_chr_parse_compat(label, optarg);
2344 if (!opts) {
2345 fprintf(stderr, "parse error: %s\n", optarg);
2346 exit(1);
2350 opts = qemu_opts_create(qemu_find_opts("mon"), label, 1, NULL);
2351 if (!opts) {
2352 fprintf(stderr, "duplicate chardev: %s\n", label);
2353 exit(1);
2355 qemu_opt_set(opts, "mode", mode);
2356 qemu_opt_set(opts, "chardev", label);
2357 if (def)
2358 qemu_opt_set(opts, "default", "on");
2359 monitor_device_index++;
2362 struct device_config {
2363 enum {
2364 DEV_USB, /* -usbdevice */
2365 DEV_BT, /* -bt */
2366 DEV_SERIAL, /* -serial */
2367 DEV_PARALLEL, /* -parallel */
2368 DEV_VIRTCON, /* -virtioconsole */
2369 DEV_DEBUGCON, /* -debugcon */
2370 DEV_GDB, /* -gdb, -s */
2371 DEV_SCLP, /* s390 sclp */
2372 } type;
2373 const char *cmdline;
2374 Location loc;
2375 QTAILQ_ENTRY(device_config) next;
2378 static QTAILQ_HEAD(, device_config) device_configs =
2379 QTAILQ_HEAD_INITIALIZER(device_configs);
2381 static void add_device_config(int type, const char *cmdline)
2383 struct device_config *conf;
2385 conf = g_malloc0(sizeof(*conf));
2386 conf->type = type;
2387 conf->cmdline = cmdline;
2388 loc_save(&conf->loc);
2389 QTAILQ_INSERT_TAIL(&device_configs, conf, next);
2392 static int foreach_device_config(int type, int (*func)(const char *cmdline))
2394 struct device_config *conf;
2395 int rc;
2397 QTAILQ_FOREACH(conf, &device_configs, next) {
2398 if (conf->type != type)
2399 continue;
2400 loc_push_restore(&conf->loc);
2401 rc = func(conf->cmdline);
2402 loc_pop(&conf->loc);
2403 if (0 != rc)
2404 return rc;
2406 return 0;
2409 static int serial_parse(const char *devname)
2411 static int index = 0;
2412 char label[32];
2414 if (strcmp(devname, "none") == 0)
2415 return 0;
2416 if (index == MAX_SERIAL_PORTS) {
2417 fprintf(stderr, "qemu: too many serial ports\n");
2418 exit(1);
2420 snprintf(label, sizeof(label), "serial%d", index);
2421 serial_hds[index] = qemu_chr_new(label, devname, NULL);
2422 if (!serial_hds[index]) {
2423 fprintf(stderr, "qemu: could not connect serial device"
2424 " to character backend '%s'\n", devname);
2425 return -1;
2427 index++;
2428 return 0;
2431 static int parallel_parse(const char *devname)
2433 static int index = 0;
2434 char label[32];
2436 if (strcmp(devname, "none") == 0)
2437 return 0;
2438 if (index == MAX_PARALLEL_PORTS) {
2439 fprintf(stderr, "qemu: too many parallel ports\n");
2440 exit(1);
2442 snprintf(label, sizeof(label), "parallel%d", index);
2443 parallel_hds[index] = qemu_chr_new(label, devname, NULL);
2444 if (!parallel_hds[index]) {
2445 fprintf(stderr, "qemu: could not connect parallel device"
2446 " to character backend '%s'\n", devname);
2447 return -1;
2449 index++;
2450 return 0;
2453 static int virtcon_parse(const char *devname)
2455 QemuOptsList *device = qemu_find_opts("device");
2456 static int index = 0;
2457 char label[32];
2458 QemuOpts *bus_opts, *dev_opts;
2460 if (strcmp(devname, "none") == 0)
2461 return 0;
2462 if (index == MAX_VIRTIO_CONSOLES) {
2463 fprintf(stderr, "qemu: too many virtio consoles\n");
2464 exit(1);
2467 bus_opts = qemu_opts_create(device, NULL, 0, &error_abort);
2468 if (arch_type == QEMU_ARCH_S390X) {
2469 qemu_opt_set(bus_opts, "driver", "virtio-serial-s390");
2470 } else {
2471 qemu_opt_set(bus_opts, "driver", "virtio-serial-pci");
2474 dev_opts = qemu_opts_create(device, NULL, 0, &error_abort);
2475 qemu_opt_set(dev_opts, "driver", "virtconsole");
2477 snprintf(label, sizeof(label), "virtcon%d", index);
2478 virtcon_hds[index] = qemu_chr_new(label, devname, NULL);
2479 if (!virtcon_hds[index]) {
2480 fprintf(stderr, "qemu: could not connect virtio console"
2481 " to character backend '%s'\n", devname);
2482 return -1;
2484 qemu_opt_set(dev_opts, "chardev", label);
2486 index++;
2487 return 0;
2490 static int sclp_parse(const char *devname)
2492 QemuOptsList *device = qemu_find_opts("device");
2493 static int index = 0;
2494 char label[32];
2495 QemuOpts *dev_opts;
2497 if (strcmp(devname, "none") == 0) {
2498 return 0;
2500 if (index == MAX_SCLP_CONSOLES) {
2501 fprintf(stderr, "qemu: too many sclp consoles\n");
2502 exit(1);
2505 assert(arch_type == QEMU_ARCH_S390X);
2507 dev_opts = qemu_opts_create(device, NULL, 0, NULL);
2508 qemu_opt_set(dev_opts, "driver", "sclpconsole");
2510 snprintf(label, sizeof(label), "sclpcon%d", index);
2511 sclp_hds[index] = qemu_chr_new(label, devname, NULL);
2512 if (!sclp_hds[index]) {
2513 fprintf(stderr, "qemu: could not connect sclp console"
2514 " to character backend '%s'\n", devname);
2515 return -1;
2517 qemu_opt_set(dev_opts, "chardev", label);
2519 index++;
2520 return 0;
2523 static int debugcon_parse(const char *devname)
2525 QemuOpts *opts;
2527 if (!qemu_chr_new("debugcon", devname, NULL)) {
2528 exit(1);
2530 opts = qemu_opts_create(qemu_find_opts("device"), "debugcon", 1, NULL);
2531 if (!opts) {
2532 fprintf(stderr, "qemu: already have a debugcon device\n");
2533 exit(1);
2535 qemu_opt_set(opts, "driver", "isa-debugcon");
2536 qemu_opt_set(opts, "chardev", "debugcon");
2537 return 0;
2540 static QEMUMachine *machine_parse(const char *name)
2542 QEMUMachine *m, *machine = NULL;
2544 if (name) {
2545 machine = find_machine(name);
2547 if (machine) {
2548 return machine;
2550 printf("Supported machines are:\n");
2551 for (m = first_machine; m != NULL; m = m->next) {
2552 if (m->alias) {
2553 printf("%-20s %s (alias of %s)\n", m->alias, m->desc, m->name);
2555 printf("%-20s %s%s\n", m->name, m->desc,
2556 m->is_default ? " (default)" : "");
2558 exit(!name || !is_help_option(name));
2561 static int tcg_init(void)
2563 tcg_exec_init(tcg_tb_size * 1024 * 1024);
2564 return 0;
2567 static struct {
2568 const char *opt_name;
2569 const char *name;
2570 int (*available)(void);
2571 int (*init)(void);
2572 bool *allowed;
2573 } accel_list[] = {
2574 { "tcg", "tcg", tcg_available, tcg_init, &tcg_allowed },
2575 { "xen", "Xen", xen_available, xen_init, &xen_allowed },
2576 { "kvm", "KVM", kvm_available, kvm_init, &kvm_allowed },
2577 { "qtest", "QTest", qtest_available, qtest_init_accel, &qtest_allowed },
2580 static int configure_accelerator(void)
2582 const char *p;
2583 char buf[10];
2584 int i, ret;
2585 bool accel_initialised = false;
2586 bool init_failed = false;
2588 p = qemu_opt_get(qemu_get_machine_opts(), "accel");
2589 if (p == NULL) {
2590 /* Use the default "accelerator", tcg */
2591 p = "tcg";
2594 while (!accel_initialised && *p != '\0') {
2595 if (*p == ':') {
2596 p++;
2598 p = get_opt_name(buf, sizeof (buf), p, ':');
2599 for (i = 0; i < ARRAY_SIZE(accel_list); i++) {
2600 if (strcmp(accel_list[i].opt_name, buf) == 0) {
2601 if (!accel_list[i].available()) {
2602 printf("%s not supported for this target\n",
2603 accel_list[i].name);
2604 continue;
2606 *(accel_list[i].allowed) = true;
2607 ret = accel_list[i].init();
2608 if (ret < 0) {
2609 init_failed = true;
2610 fprintf(stderr, "failed to initialize %s: %s\n",
2611 accel_list[i].name,
2612 strerror(-ret));
2613 *(accel_list[i].allowed) = false;
2614 } else {
2615 accel_initialised = true;
2617 break;
2620 if (i == ARRAY_SIZE(accel_list)) {
2621 fprintf(stderr, "\"%s\" accelerator does not exist.\n", buf);
2625 if (!accel_initialised) {
2626 if (!init_failed) {
2627 fprintf(stderr, "No accelerator found!\n");
2629 exit(1);
2632 if (init_failed) {
2633 fprintf(stderr, "Back to %s accelerator.\n", accel_list[i].name);
2636 return !accel_initialised;
2639 void qemu_add_exit_notifier(Notifier *notify)
2641 notifier_list_add(&exit_notifiers, notify);
2644 void qemu_remove_exit_notifier(Notifier *notify)
2646 notifier_remove(notify);
2649 static void qemu_run_exit_notifiers(void)
2651 notifier_list_notify(&exit_notifiers, NULL);
2654 void qemu_add_machine_init_done_notifier(Notifier *notify)
2656 notifier_list_add(&machine_init_done_notifiers, notify);
2659 static void qemu_run_machine_init_done_notifiers(void)
2661 notifier_list_notify(&machine_init_done_notifiers, NULL);
2664 static const QEMUOption *lookup_opt(int argc, char **argv,
2665 const char **poptarg, int *poptind)
2667 const QEMUOption *popt;
2668 int optind = *poptind;
2669 char *r = argv[optind];
2670 const char *optarg;
2672 loc_set_cmdline(argv, optind, 1);
2673 optind++;
2674 /* Treat --foo the same as -foo. */
2675 if (r[1] == '-')
2676 r++;
2677 popt = qemu_options;
2678 for(;;) {
2679 if (!popt->name) {
2680 error_report("invalid option");
2681 exit(1);
2683 if (!strcmp(popt->name, r + 1))
2684 break;
2685 popt++;
2687 if (popt->flags & HAS_ARG) {
2688 if (optind >= argc) {
2689 error_report("requires an argument");
2690 exit(1);
2692 optarg = argv[optind++];
2693 loc_set_cmdline(argv, optind - 2, 2);
2694 } else {
2695 optarg = NULL;
2698 *poptarg = optarg;
2699 *poptind = optind;
2701 return popt;
2704 static gpointer malloc_and_trace(gsize n_bytes)
2706 void *ptr = malloc(n_bytes);
2707 trace_g_malloc(n_bytes, ptr);
2708 return ptr;
2711 static gpointer realloc_and_trace(gpointer mem, gsize n_bytes)
2713 void *ptr = realloc(mem, n_bytes);
2714 trace_g_realloc(mem, n_bytes, ptr);
2715 return ptr;
2718 static void free_and_trace(gpointer mem)
2720 trace_g_free(mem);
2721 free(mem);
2724 static int object_set_property(const char *name, const char *value, void *opaque)
2726 Object *obj = OBJECT(opaque);
2727 StringInputVisitor *siv;
2728 Error *local_err = NULL;
2730 if (strcmp(name, "qom-type") == 0 || strcmp(name, "id") == 0) {
2731 return 0;
2734 siv = string_input_visitor_new(value);
2735 object_property_set(obj, string_input_get_visitor(siv), name, &local_err);
2736 string_input_visitor_cleanup(siv);
2738 if (local_err) {
2739 qerror_report_err(local_err);
2740 error_free(local_err);
2741 return -1;
2744 return 0;
2747 static int object_create(QemuOpts *opts, void *opaque)
2749 const char *type = qemu_opt_get(opts, "qom-type");
2750 const char *id = qemu_opts_id(opts);
2751 Error *local_err = NULL;
2752 Object *obj;
2754 g_assert(type != NULL);
2756 if (id == NULL) {
2757 qerror_report(QERR_MISSING_PARAMETER, "id");
2758 return -1;
2761 obj = object_new(type);
2762 if (qemu_opt_foreach(opts, object_set_property, obj, 1) < 0) {
2763 object_unref(obj);
2764 return -1;
2767 if (!object_dynamic_cast(obj, TYPE_USER_CREATABLE)) {
2768 error_setg(&local_err, "object '%s' isn't supported by -object",
2769 id);
2770 goto out;
2773 user_creatable_complete(obj, &local_err);
2774 if (local_err) {
2775 goto out;
2778 object_property_add_child(container_get(object_get_root(), "/objects"),
2779 id, obj, &local_err);
2781 out:
2782 object_unref(obj);
2783 if (local_err) {
2784 qerror_report_err(local_err);
2785 error_free(local_err);
2786 return -1;
2788 return 0;
2791 int main(int argc, char **argv, char **envp)
2793 int i;
2794 int snapshot, linux_boot;
2795 const char *icount_option = NULL;
2796 const char *initrd_filename;
2797 const char *kernel_filename, *kernel_cmdline;
2798 const char *boot_order;
2799 DisplayState *ds;
2800 int cyls, heads, secs, translation;
2801 QemuOpts *hda_opts = NULL, *opts, *machine_opts;
2802 QemuOptsList *olist;
2803 int optind;
2804 const char *optarg;
2805 const char *loadvm = NULL;
2806 QEMUMachine *machine;
2807 const char *cpu_model;
2808 const char *vga_model = "none";
2809 const char *qtest_chrdev = NULL;
2810 const char *qtest_log = NULL;
2811 const char *pid_file = NULL;
2812 const char *incoming = NULL;
2813 #ifdef CONFIG_VNC
2814 int show_vnc_port = 0;
2815 #endif
2816 bool defconfig = true;
2817 bool userconfig = true;
2818 const char *log_mask = NULL;
2819 const char *log_file = NULL;
2820 GMemVTable mem_trace = {
2821 .malloc = malloc_and_trace,
2822 .realloc = realloc_and_trace,
2823 .free = free_and_trace,
2825 const char *trace_events = NULL;
2826 const char *trace_file = NULL;
2828 atexit(qemu_run_exit_notifiers);
2829 error_set_progname(argv[0]);
2830 qemu_init_exec_dir(argv[0]);
2832 g_mem_set_vtable(&mem_trace);
2833 if (!g_thread_supported()) {
2834 #if !GLIB_CHECK_VERSION(2, 31, 0)
2835 g_thread_init(NULL);
2836 #else
2837 fprintf(stderr, "glib threading failed to initialize.\n");
2838 exit(1);
2839 #endif
2842 module_call_init(MODULE_INIT_QOM);
2844 qemu_add_opts(&qemu_drive_opts);
2845 qemu_add_drive_opts(&qemu_legacy_drive_opts);
2846 qemu_add_drive_opts(&qemu_common_drive_opts);
2847 qemu_add_drive_opts(&qemu_drive_opts);
2848 qemu_add_opts(&qemu_chardev_opts);
2849 qemu_add_opts(&qemu_device_opts);
2850 qemu_add_opts(&qemu_netdev_opts);
2851 qemu_add_opts(&qemu_net_opts);
2852 qemu_add_opts(&qemu_rtc_opts);
2853 qemu_add_opts(&qemu_global_opts);
2854 qemu_add_opts(&qemu_mon_opts);
2855 qemu_add_opts(&qemu_trace_opts);
2856 qemu_add_opts(&qemu_option_rom_opts);
2857 qemu_add_opts(&qemu_machine_opts);
2858 qemu_add_opts(&qemu_smp_opts);
2859 qemu_add_opts(&qemu_boot_opts);
2860 qemu_add_opts(&qemu_sandbox_opts);
2861 qemu_add_opts(&qemu_add_fd_opts);
2862 qemu_add_opts(&qemu_object_opts);
2863 qemu_add_opts(&qemu_tpmdev_opts);
2864 qemu_add_opts(&qemu_realtime_opts);
2865 qemu_add_opts(&qemu_msg_opts);
2867 runstate_init();
2869 init_clocks();
2870 rtc_clock = QEMU_CLOCK_HOST;
2872 qemu_init_auxval(envp);
2873 qemu_cache_utils_init();
2875 QLIST_INIT (&vm_change_state_head);
2876 os_setup_early_signal_handling();
2878 module_call_init(MODULE_INIT_MACHINE);
2879 machine = find_default_machine();
2880 cpu_model = NULL;
2881 ram_size = 0;
2882 snapshot = 0;
2883 cyls = heads = secs = 0;
2884 translation = BIOS_ATA_TRANSLATION_AUTO;
2886 for (i = 0; i < MAX_NODES; i++) {
2887 node_mem[i] = 0;
2888 node_cpumask[i] = bitmap_new(MAX_CPUMASK_BITS);
2891 nb_numa_nodes = 0;
2892 nb_nics = 0;
2894 bdrv_init_with_whitelist();
2896 autostart = 1;
2898 /* first pass of option parsing */
2899 optind = 1;
2900 while (optind < argc) {
2901 if (argv[optind][0] != '-') {
2902 /* disk image */
2903 optind++;
2904 continue;
2905 } else {
2906 const QEMUOption *popt;
2908 popt = lookup_opt(argc, argv, &optarg, &optind);
2909 switch (popt->index) {
2910 case QEMU_OPTION_nodefconfig:
2911 defconfig = false;
2912 break;
2913 case QEMU_OPTION_nouserconfig:
2914 userconfig = false;
2915 break;
2920 if (defconfig) {
2921 int ret;
2922 ret = qemu_read_default_config_files(userconfig);
2923 if (ret < 0) {
2924 exit(1);
2928 /* second pass of option parsing */
2929 optind = 1;
2930 for(;;) {
2931 if (optind >= argc)
2932 break;
2933 if (argv[optind][0] != '-') {
2934 hda_opts = drive_add(IF_DEFAULT, 0, argv[optind++], HD_OPTS);
2935 } else {
2936 const QEMUOption *popt;
2938 popt = lookup_opt(argc, argv, &optarg, &optind);
2939 if (!(popt->arch_mask & arch_type)) {
2940 printf("Option %s not supported for this target\n", popt->name);
2941 exit(1);
2943 switch(popt->index) {
2944 case QEMU_OPTION_M:
2945 machine = machine_parse(optarg);
2946 break;
2947 case QEMU_OPTION_no_kvm_irqchip: {
2948 olist = qemu_find_opts("machine");
2949 qemu_opts_parse(olist, "kernel_irqchip=off", 0);
2950 break;
2952 case QEMU_OPTION_cpu:
2953 /* hw initialization will check this */
2954 cpu_model = optarg;
2955 break;
2956 case QEMU_OPTION_hda:
2958 char buf[256];
2959 if (cyls == 0)
2960 snprintf(buf, sizeof(buf), "%s", HD_OPTS);
2961 else
2962 snprintf(buf, sizeof(buf),
2963 "%s,cyls=%d,heads=%d,secs=%d%s",
2964 HD_OPTS , cyls, heads, secs,
2965 translation == BIOS_ATA_TRANSLATION_LBA ?
2966 ",trans=lba" :
2967 translation == BIOS_ATA_TRANSLATION_NONE ?
2968 ",trans=none" : "");
2969 drive_add(IF_DEFAULT, 0, optarg, buf);
2970 break;
2972 case QEMU_OPTION_hdb:
2973 case QEMU_OPTION_hdc:
2974 case QEMU_OPTION_hdd:
2975 drive_add(IF_DEFAULT, popt->index - QEMU_OPTION_hda, optarg,
2976 HD_OPTS);
2977 break;
2978 case QEMU_OPTION_drive:
2979 if (drive_def(optarg) == NULL) {
2980 exit(1);
2982 break;
2983 case QEMU_OPTION_set:
2984 if (qemu_set_option(optarg) != 0)
2985 exit(1);
2986 break;
2987 case QEMU_OPTION_global:
2988 if (qemu_global_option(optarg) != 0)
2989 exit(1);
2990 break;
2991 case QEMU_OPTION_mtdblock:
2992 drive_add(IF_MTD, -1, optarg, MTD_OPTS);
2993 break;
2994 case QEMU_OPTION_sd:
2995 drive_add(IF_SD, -1, optarg, SD_OPTS);
2996 break;
2997 case QEMU_OPTION_pflash:
2998 drive_add(IF_PFLASH, -1, optarg, PFLASH_OPTS);
2999 break;
3000 case QEMU_OPTION_snapshot:
3001 snapshot = 1;
3002 break;
3003 case QEMU_OPTION_hdachs:
3005 const char *p;
3006 p = optarg;
3007 cyls = strtol(p, (char **)&p, 0);
3008 if (cyls < 1 || cyls > 16383)
3009 goto chs_fail;
3010 if (*p != ',')
3011 goto chs_fail;
3012 p++;
3013 heads = strtol(p, (char **)&p, 0);
3014 if (heads < 1 || heads > 16)
3015 goto chs_fail;
3016 if (*p != ',')
3017 goto chs_fail;
3018 p++;
3019 secs = strtol(p, (char **)&p, 0);
3020 if (secs < 1 || secs > 63)
3021 goto chs_fail;
3022 if (*p == ',') {
3023 p++;
3024 if (!strcmp(p, "large")) {
3025 translation = BIOS_ATA_TRANSLATION_LARGE;
3026 } else if (!strcmp(p, "rechs")) {
3027 translation = BIOS_ATA_TRANSLATION_RECHS;
3028 } else if (!strcmp(p, "none")) {
3029 translation = BIOS_ATA_TRANSLATION_NONE;
3030 } else if (!strcmp(p, "lba")) {
3031 translation = BIOS_ATA_TRANSLATION_LBA;
3032 } else if (!strcmp(p, "auto")) {
3033 translation = BIOS_ATA_TRANSLATION_AUTO;
3034 } else {
3035 goto chs_fail;
3037 } else if (*p != '\0') {
3038 chs_fail:
3039 fprintf(stderr, "qemu: invalid physical CHS format\n");
3040 exit(1);
3042 if (hda_opts != NULL) {
3043 char num[16];
3044 snprintf(num, sizeof(num), "%d", cyls);
3045 qemu_opt_set(hda_opts, "cyls", num);
3046 snprintf(num, sizeof(num), "%d", heads);
3047 qemu_opt_set(hda_opts, "heads", num);
3048 snprintf(num, sizeof(num), "%d", secs);
3049 qemu_opt_set(hda_opts, "secs", num);
3050 if (translation == BIOS_ATA_TRANSLATION_LARGE) {
3051 qemu_opt_set(hda_opts, "trans", "large");
3052 } else if (translation == BIOS_ATA_TRANSLATION_RECHS) {
3053 qemu_opt_set(hda_opts, "trans", "rechs");
3054 } else if (translation == BIOS_ATA_TRANSLATION_LBA) {
3055 qemu_opt_set(hda_opts, "trans", "lba");
3056 } else if (translation == BIOS_ATA_TRANSLATION_NONE) {
3057 qemu_opt_set(hda_opts, "trans", "none");
3061 break;
3062 case QEMU_OPTION_numa:
3063 numa_add(optarg);
3064 break;
3065 case QEMU_OPTION_display:
3066 display_type = select_display(optarg);
3067 break;
3068 case QEMU_OPTION_nographic:
3069 display_type = DT_NOGRAPHIC;
3070 break;
3071 case QEMU_OPTION_curses:
3072 #ifdef CONFIG_CURSES
3073 display_type = DT_CURSES;
3074 #else
3075 fprintf(stderr, "Curses support is disabled\n");
3076 exit(1);
3077 #endif
3078 break;
3079 case QEMU_OPTION_portrait:
3080 graphic_rotate = 90;
3081 break;
3082 case QEMU_OPTION_rotate:
3083 graphic_rotate = strtol(optarg, (char **) &optarg, 10);
3084 if (graphic_rotate != 0 && graphic_rotate != 90 &&
3085 graphic_rotate != 180 && graphic_rotate != 270) {
3086 fprintf(stderr,
3087 "qemu: only 90, 180, 270 deg rotation is available\n");
3088 exit(1);
3090 break;
3091 case QEMU_OPTION_kernel:
3092 qemu_opts_set(qemu_find_opts("machine"), 0, "kernel", optarg);
3093 break;
3094 case QEMU_OPTION_initrd:
3095 qemu_opts_set(qemu_find_opts("machine"), 0, "initrd", optarg);
3096 break;
3097 case QEMU_OPTION_append:
3098 qemu_opts_set(qemu_find_opts("machine"), 0, "append", optarg);
3099 break;
3100 case QEMU_OPTION_dtb:
3101 qemu_opts_set(qemu_find_opts("machine"), 0, "dtb", optarg);
3102 break;
3103 case QEMU_OPTION_cdrom:
3104 drive_add(IF_DEFAULT, 2, optarg, CDROM_OPTS);
3105 break;
3106 case QEMU_OPTION_boot:
3107 opts = qemu_opts_parse(qemu_find_opts("boot-opts"), optarg, 1);
3108 if (!opts) {
3109 exit(1);
3111 break;
3112 case QEMU_OPTION_fda:
3113 case QEMU_OPTION_fdb:
3114 drive_add(IF_FLOPPY, popt->index - QEMU_OPTION_fda,
3115 optarg, FD_OPTS);
3116 break;
3117 case QEMU_OPTION_no_fd_bootchk:
3118 fd_bootchk = 0;
3119 break;
3120 case QEMU_OPTION_netdev:
3121 if (net_client_parse(qemu_find_opts("netdev"), optarg) == -1) {
3122 exit(1);
3124 break;
3125 case QEMU_OPTION_net:
3126 if (net_client_parse(qemu_find_opts("net"), optarg) == -1) {
3127 exit(1);
3129 break;
3130 #ifdef CONFIG_LIBISCSI
3131 case QEMU_OPTION_iscsi:
3132 opts = qemu_opts_parse(qemu_find_opts("iscsi"), optarg, 0);
3133 if (!opts) {
3134 exit(1);
3136 break;
3137 #endif
3138 #ifdef CONFIG_SLIRP
3139 case QEMU_OPTION_tftp:
3140 legacy_tftp_prefix = optarg;
3141 break;
3142 case QEMU_OPTION_bootp:
3143 legacy_bootp_filename = optarg;
3144 break;
3145 case QEMU_OPTION_redir:
3146 if (net_slirp_redir(optarg) < 0)
3147 exit(1);
3148 break;
3149 #endif
3150 case QEMU_OPTION_bt:
3151 add_device_config(DEV_BT, optarg);
3152 break;
3153 case QEMU_OPTION_audio_help:
3154 AUD_help ();
3155 exit (0);
3156 break;
3157 case QEMU_OPTION_soundhw:
3158 select_soundhw (optarg);
3159 break;
3160 case QEMU_OPTION_h:
3161 help(0);
3162 break;
3163 case QEMU_OPTION_version:
3164 version();
3165 exit(0);
3166 break;
3167 case QEMU_OPTION_m: {
3168 int64_t value;
3169 uint64_t sz;
3170 char *end;
3172 value = strtosz(optarg, &end);
3173 if (value < 0 || *end) {
3174 fprintf(stderr, "qemu: invalid ram size: %s\n", optarg);
3175 exit(1);
3177 sz = QEMU_ALIGN_UP((uint64_t)value, 8192);
3178 ram_size = sz;
3179 if (ram_size != sz) {
3180 fprintf(stderr, "qemu: ram size too large\n");
3181 exit(1);
3183 break;
3185 #ifdef CONFIG_TPM
3186 case QEMU_OPTION_tpmdev:
3187 if (tpm_config_parse(qemu_find_opts("tpmdev"), optarg) < 0) {
3188 exit(1);
3190 break;
3191 #endif
3192 case QEMU_OPTION_mempath:
3193 mem_path = optarg;
3194 break;
3195 case QEMU_OPTION_mem_prealloc:
3196 mem_prealloc = 1;
3197 break;
3198 case QEMU_OPTION_d:
3199 log_mask = optarg;
3200 break;
3201 case QEMU_OPTION_D:
3202 log_file = optarg;
3203 break;
3204 case QEMU_OPTION_s:
3205 add_device_config(DEV_GDB, "tcp::" DEFAULT_GDBSTUB_PORT);
3206 break;
3207 case QEMU_OPTION_gdb:
3208 add_device_config(DEV_GDB, optarg);
3209 break;
3210 case QEMU_OPTION_L:
3211 if (data_dir_idx < ARRAY_SIZE(data_dir)) {
3212 data_dir[data_dir_idx++] = optarg;
3214 break;
3215 case QEMU_OPTION_bios:
3216 qemu_opts_set(qemu_find_opts("machine"), 0, "firmware", optarg);
3217 break;
3218 case QEMU_OPTION_singlestep:
3219 singlestep = 1;
3220 break;
3221 case QEMU_OPTION_S:
3222 autostart = 0;
3223 break;
3224 case QEMU_OPTION_k:
3225 keyboard_layout = optarg;
3226 break;
3227 case QEMU_OPTION_localtime:
3228 rtc_utc = 0;
3229 break;
3230 case QEMU_OPTION_vga:
3231 vga_model = optarg;
3232 default_vga = 0;
3233 break;
3234 case QEMU_OPTION_g:
3236 const char *p;
3237 int w, h, depth;
3238 p = optarg;
3239 w = strtol(p, (char **)&p, 10);
3240 if (w <= 0) {
3241 graphic_error:
3242 fprintf(stderr, "qemu: invalid resolution or depth\n");
3243 exit(1);
3245 if (*p != 'x')
3246 goto graphic_error;
3247 p++;
3248 h = strtol(p, (char **)&p, 10);
3249 if (h <= 0)
3250 goto graphic_error;
3251 if (*p == 'x') {
3252 p++;
3253 depth = strtol(p, (char **)&p, 10);
3254 if (depth != 8 && depth != 15 && depth != 16 &&
3255 depth != 24 && depth != 32)
3256 goto graphic_error;
3257 } else if (*p == '\0') {
3258 depth = graphic_depth;
3259 } else {
3260 goto graphic_error;
3263 graphic_width = w;
3264 graphic_height = h;
3265 graphic_depth = depth;
3267 break;
3268 case QEMU_OPTION_echr:
3270 char *r;
3271 term_escape_char = strtol(optarg, &r, 0);
3272 if (r == optarg)
3273 printf("Bad argument to echr\n");
3274 break;
3276 case QEMU_OPTION_monitor:
3277 default_monitor = 0;
3278 if (strncmp(optarg, "none", 4)) {
3279 monitor_parse(optarg, "readline");
3281 break;
3282 case QEMU_OPTION_qmp:
3283 monitor_parse(optarg, "control");
3284 default_monitor = 0;
3285 break;
3286 case QEMU_OPTION_mon:
3287 opts = qemu_opts_parse(qemu_find_opts("mon"), optarg, 1);
3288 if (!opts) {
3289 exit(1);
3291 default_monitor = 0;
3292 break;
3293 case QEMU_OPTION_chardev:
3294 opts = qemu_opts_parse(qemu_find_opts("chardev"), optarg, 1);
3295 if (!opts) {
3296 exit(1);
3298 break;
3299 case QEMU_OPTION_fsdev:
3300 olist = qemu_find_opts("fsdev");
3301 if (!olist) {
3302 fprintf(stderr, "fsdev is not supported by this qemu build.\n");
3303 exit(1);
3305 opts = qemu_opts_parse(olist, optarg, 1);
3306 if (!opts) {
3307 exit(1);
3309 break;
3310 case QEMU_OPTION_virtfs: {
3311 QemuOpts *fsdev;
3312 QemuOpts *device;
3313 const char *writeout, *sock_fd, *socket;
3315 olist = qemu_find_opts("virtfs");
3316 if (!olist) {
3317 fprintf(stderr, "virtfs is not supported by this qemu build.\n");
3318 exit(1);
3320 opts = qemu_opts_parse(olist, optarg, 1);
3321 if (!opts) {
3322 exit(1);
3325 if (qemu_opt_get(opts, "fsdriver") == NULL ||
3326 qemu_opt_get(opts, "mount_tag") == NULL) {
3327 fprintf(stderr, "Usage: -virtfs fsdriver,mount_tag=tag.\n");
3328 exit(1);
3330 fsdev = qemu_opts_create(qemu_find_opts("fsdev"),
3331 qemu_opt_get(opts, "mount_tag"),
3332 1, NULL);
3333 if (!fsdev) {
3334 fprintf(stderr, "duplicate fsdev id: %s\n",
3335 qemu_opt_get(opts, "mount_tag"));
3336 exit(1);
3339 writeout = qemu_opt_get(opts, "writeout");
3340 if (writeout) {
3341 #ifdef CONFIG_SYNC_FILE_RANGE
3342 qemu_opt_set(fsdev, "writeout", writeout);
3343 #else
3344 fprintf(stderr, "writeout=immediate not supported on "
3345 "this platform\n");
3346 exit(1);
3347 #endif
3349 qemu_opt_set(fsdev, "fsdriver", qemu_opt_get(opts, "fsdriver"));
3350 qemu_opt_set(fsdev, "path", qemu_opt_get(opts, "path"));
3351 qemu_opt_set(fsdev, "security_model",
3352 qemu_opt_get(opts, "security_model"));
3353 socket = qemu_opt_get(opts, "socket");
3354 if (socket) {
3355 qemu_opt_set(fsdev, "socket", socket);
3357 sock_fd = qemu_opt_get(opts, "sock_fd");
3358 if (sock_fd) {
3359 qemu_opt_set(fsdev, "sock_fd", sock_fd);
3362 qemu_opt_set_bool(fsdev, "readonly",
3363 qemu_opt_get_bool(opts, "readonly", 0));
3364 device = qemu_opts_create(qemu_find_opts("device"), NULL, 0,
3365 &error_abort);
3366 qemu_opt_set(device, "driver", "virtio-9p-pci");
3367 qemu_opt_set(device, "fsdev",
3368 qemu_opt_get(opts, "mount_tag"));
3369 qemu_opt_set(device, "mount_tag",
3370 qemu_opt_get(opts, "mount_tag"));
3371 break;
3373 case QEMU_OPTION_virtfs_synth: {
3374 QemuOpts *fsdev;
3375 QemuOpts *device;
3377 fsdev = qemu_opts_create(qemu_find_opts("fsdev"), "v_synth",
3378 1, NULL);
3379 if (!fsdev) {
3380 fprintf(stderr, "duplicate option: %s\n", "virtfs_synth");
3381 exit(1);
3383 qemu_opt_set(fsdev, "fsdriver", "synth");
3385 device = qemu_opts_create(qemu_find_opts("device"), NULL, 0,
3386 &error_abort);
3387 qemu_opt_set(device, "driver", "virtio-9p-pci");
3388 qemu_opt_set(device, "fsdev", "v_synth");
3389 qemu_opt_set(device, "mount_tag", "v_synth");
3390 break;
3392 case QEMU_OPTION_serial:
3393 add_device_config(DEV_SERIAL, optarg);
3394 default_serial = 0;
3395 if (strncmp(optarg, "mon:", 4) == 0) {
3396 default_monitor = 0;
3398 break;
3399 case QEMU_OPTION_watchdog:
3400 if (watchdog) {
3401 fprintf(stderr,
3402 "qemu: only one watchdog option may be given\n");
3403 return 1;
3405 watchdog = optarg;
3406 break;
3407 case QEMU_OPTION_watchdog_action:
3408 if (select_watchdog_action(optarg) == -1) {
3409 fprintf(stderr, "Unknown -watchdog-action parameter\n");
3410 exit(1);
3412 break;
3413 case QEMU_OPTION_virtiocon:
3414 add_device_config(DEV_VIRTCON, optarg);
3415 default_virtcon = 0;
3416 if (strncmp(optarg, "mon:", 4) == 0) {
3417 default_monitor = 0;
3419 break;
3420 case QEMU_OPTION_parallel:
3421 add_device_config(DEV_PARALLEL, optarg);
3422 default_parallel = 0;
3423 if (strncmp(optarg, "mon:", 4) == 0) {
3424 default_monitor = 0;
3426 break;
3427 case QEMU_OPTION_debugcon:
3428 add_device_config(DEV_DEBUGCON, optarg);
3429 break;
3430 case QEMU_OPTION_loadvm:
3431 loadvm = optarg;
3432 break;
3433 case QEMU_OPTION_full_screen:
3434 full_screen = 1;
3435 break;
3436 case QEMU_OPTION_no_frame:
3437 no_frame = 1;
3438 break;
3439 case QEMU_OPTION_alt_grab:
3440 alt_grab = 1;
3441 break;
3442 case QEMU_OPTION_ctrl_grab:
3443 ctrl_grab = 1;
3444 break;
3445 case QEMU_OPTION_no_quit:
3446 no_quit = 1;
3447 break;
3448 case QEMU_OPTION_sdl:
3449 #ifdef CONFIG_SDL
3450 display_type = DT_SDL;
3451 break;
3452 #else
3453 fprintf(stderr, "SDL support is disabled\n");
3454 exit(1);
3455 #endif
3456 case QEMU_OPTION_pidfile:
3457 pid_file = optarg;
3458 break;
3459 case QEMU_OPTION_win2k_hack:
3460 win2k_install_hack = 1;
3461 break;
3462 case QEMU_OPTION_rtc_td_hack: {
3463 static GlobalProperty slew_lost_ticks[] = {
3465 .driver = "mc146818rtc",
3466 .property = "lost_tick_policy",
3467 .value = "slew",
3469 { /* end of list */ }
3472 qdev_prop_register_global_list(slew_lost_ticks);
3473 break;
3475 case QEMU_OPTION_acpitable:
3476 opts = qemu_opts_parse(qemu_find_opts("acpi"), optarg, 1);
3477 if (!opts) {
3478 exit(1);
3480 do_acpitable_option(opts);
3481 break;
3482 case QEMU_OPTION_smbios:
3483 opts = qemu_opts_parse(qemu_find_opts("smbios"), optarg, 0);
3484 if (!opts) {
3485 exit(1);
3487 do_smbios_option(opts);
3488 break;
3489 case QEMU_OPTION_enable_kvm:
3490 olist = qemu_find_opts("machine");
3491 qemu_opts_parse(olist, "accel=kvm", 0);
3492 break;
3493 case QEMU_OPTION_machine:
3494 olist = qemu_find_opts("machine");
3495 opts = qemu_opts_parse(olist, optarg, 1);
3496 if (!opts) {
3497 exit(1);
3499 optarg = qemu_opt_get(opts, "type");
3500 if (optarg) {
3501 machine = machine_parse(optarg);
3503 break;
3504 case QEMU_OPTION_no_kvm:
3505 olist = qemu_find_opts("machine");
3506 qemu_opts_parse(olist, "accel=tcg", 0);
3507 break;
3508 case QEMU_OPTION_no_kvm_pit: {
3509 fprintf(stderr, "Warning: KVM PIT can no longer be disabled "
3510 "separately.\n");
3511 break;
3513 case QEMU_OPTION_no_kvm_pit_reinjection: {
3514 static GlobalProperty kvm_pit_lost_tick_policy[] = {
3516 .driver = "kvm-pit",
3517 .property = "lost_tick_policy",
3518 .value = "discard",
3520 { /* end of list */ }
3523 fprintf(stderr, "Warning: option deprecated, use "
3524 "lost_tick_policy property of kvm-pit instead.\n");
3525 qdev_prop_register_global_list(kvm_pit_lost_tick_policy);
3526 break;
3528 case QEMU_OPTION_usb:
3529 olist = qemu_find_opts("machine");
3530 qemu_opts_parse(olist, "usb=on", 0);
3531 break;
3532 case QEMU_OPTION_usbdevice:
3533 olist = qemu_find_opts("machine");
3534 qemu_opts_parse(olist, "usb=on", 0);
3535 add_device_config(DEV_USB, optarg);
3536 break;
3537 case QEMU_OPTION_device:
3538 if (!qemu_opts_parse(qemu_find_opts("device"), optarg, 1)) {
3539 exit(1);
3541 break;
3542 case QEMU_OPTION_smp:
3543 if (!qemu_opts_parse(qemu_find_opts("smp-opts"), optarg, 1)) {
3544 exit(1);
3546 break;
3547 case QEMU_OPTION_vnc:
3548 #ifdef CONFIG_VNC
3549 display_remote++;
3550 vnc_display = optarg;
3551 #else
3552 fprintf(stderr, "VNC support is disabled\n");
3553 exit(1);
3554 #endif
3555 break;
3556 case QEMU_OPTION_no_acpi:
3557 acpi_enabled = 0;
3558 break;
3559 case QEMU_OPTION_no_hpet:
3560 no_hpet = 1;
3561 break;
3562 case QEMU_OPTION_balloon:
3563 if (balloon_parse(optarg) < 0) {
3564 fprintf(stderr, "Unknown -balloon argument %s\n", optarg);
3565 exit(1);
3567 break;
3568 case QEMU_OPTION_no_reboot:
3569 no_reboot = 1;
3570 break;
3571 case QEMU_OPTION_no_shutdown:
3572 no_shutdown = 1;
3573 break;
3574 case QEMU_OPTION_show_cursor:
3575 cursor_hide = 0;
3576 break;
3577 case QEMU_OPTION_uuid:
3578 if(qemu_uuid_parse(optarg, qemu_uuid) < 0) {
3579 fprintf(stderr, "Fail to parse UUID string."
3580 " Wrong format.\n");
3581 exit(1);
3583 qemu_uuid_set = true;
3584 break;
3585 case QEMU_OPTION_option_rom:
3586 if (nb_option_roms >= MAX_OPTION_ROMS) {
3587 fprintf(stderr, "Too many option ROMs\n");
3588 exit(1);
3590 opts = qemu_opts_parse(qemu_find_opts("option-rom"), optarg, 1);
3591 if (!opts) {
3592 exit(1);
3594 option_rom[nb_option_roms].name = qemu_opt_get(opts, "romfile");
3595 option_rom[nb_option_roms].bootindex =
3596 qemu_opt_get_number(opts, "bootindex", -1);
3597 if (!option_rom[nb_option_roms].name) {
3598 fprintf(stderr, "Option ROM file is not specified\n");
3599 exit(1);
3601 nb_option_roms++;
3602 break;
3603 case QEMU_OPTION_semihosting:
3604 semihosting_enabled = 1;
3605 break;
3606 case QEMU_OPTION_tdf:
3607 fprintf(stderr, "Warning: user space PIT time drift fix "
3608 "is no longer supported.\n");
3609 break;
3610 case QEMU_OPTION_name:
3611 qemu_name = g_strdup(optarg);
3613 char *p = strchr(qemu_name, ',');
3614 if (p != NULL) {
3615 *p++ = 0;
3616 if (strncmp(p, "process=", 8)) {
3617 fprintf(stderr, "Unknown subargument %s to -name\n", p);
3618 exit(1);
3620 p += 8;
3621 os_set_proc_name(p);
3624 break;
3625 case QEMU_OPTION_prom_env:
3626 if (nb_prom_envs >= MAX_PROM_ENVS) {
3627 fprintf(stderr, "Too many prom variables\n");
3628 exit(1);
3630 prom_envs[nb_prom_envs] = optarg;
3631 nb_prom_envs++;
3632 break;
3633 case QEMU_OPTION_old_param:
3634 old_param = 1;
3635 break;
3636 case QEMU_OPTION_clock:
3637 /* Clock options no longer exist. Keep this option for
3638 * backward compatibility.
3640 break;
3641 case QEMU_OPTION_startdate:
3642 configure_rtc_date_offset(optarg, 1);
3643 break;
3644 case QEMU_OPTION_rtc:
3645 opts = qemu_opts_parse(qemu_find_opts("rtc"), optarg, 0);
3646 if (!opts) {
3647 exit(1);
3649 configure_rtc(opts);
3650 break;
3651 case QEMU_OPTION_tb_size:
3652 tcg_tb_size = strtol(optarg, NULL, 0);
3653 if (tcg_tb_size < 0) {
3654 tcg_tb_size = 0;
3656 break;
3657 case QEMU_OPTION_icount:
3658 icount_option = optarg;
3659 break;
3660 case QEMU_OPTION_incoming:
3661 incoming = optarg;
3662 runstate_set(RUN_STATE_INMIGRATE);
3663 break;
3664 case QEMU_OPTION_nodefaults:
3665 default_serial = 0;
3666 default_parallel = 0;
3667 default_virtcon = 0;
3668 default_sclp = 0;
3669 default_monitor = 0;
3670 default_net = 0;
3671 default_floppy = 0;
3672 default_cdrom = 0;
3673 default_sdcard = 0;
3674 default_vga = 0;
3675 break;
3676 case QEMU_OPTION_xen_domid:
3677 if (!(xen_available())) {
3678 printf("Option %s not supported for this target\n", popt->name);
3679 exit(1);
3681 xen_domid = atoi(optarg);
3682 break;
3683 case QEMU_OPTION_xen_create:
3684 if (!(xen_available())) {
3685 printf("Option %s not supported for this target\n", popt->name);
3686 exit(1);
3688 xen_mode = XEN_CREATE;
3689 break;
3690 case QEMU_OPTION_xen_attach:
3691 if (!(xen_available())) {
3692 printf("Option %s not supported for this target\n", popt->name);
3693 exit(1);
3695 xen_mode = XEN_ATTACH;
3696 break;
3697 case QEMU_OPTION_trace:
3699 opts = qemu_opts_parse(qemu_find_opts("trace"), optarg, 0);
3700 if (!opts) {
3701 exit(1);
3703 trace_events = qemu_opt_get(opts, "events");
3704 trace_file = qemu_opt_get(opts, "file");
3705 break;
3707 case QEMU_OPTION_readconfig:
3709 int ret = qemu_read_config_file(optarg);
3710 if (ret < 0) {
3711 fprintf(stderr, "read config %s: %s\n", optarg,
3712 strerror(-ret));
3713 exit(1);
3715 break;
3717 case QEMU_OPTION_spice:
3718 olist = qemu_find_opts("spice");
3719 if (!olist) {
3720 fprintf(stderr, "spice is not supported by this qemu build.\n");
3721 exit(1);
3723 opts = qemu_opts_parse(olist, optarg, 0);
3724 if (!opts) {
3725 exit(1);
3727 display_remote++;
3728 break;
3729 case QEMU_OPTION_writeconfig:
3731 FILE *fp;
3732 if (strcmp(optarg, "-") == 0) {
3733 fp = stdout;
3734 } else {
3735 fp = fopen(optarg, "w");
3736 if (fp == NULL) {
3737 fprintf(stderr, "open %s: %s\n", optarg, strerror(errno));
3738 exit(1);
3741 qemu_config_write(fp);
3742 fclose(fp);
3743 break;
3745 case QEMU_OPTION_qtest:
3746 qtest_chrdev = optarg;
3747 break;
3748 case QEMU_OPTION_qtest_log:
3749 qtest_log = optarg;
3750 break;
3751 case QEMU_OPTION_sandbox:
3752 opts = qemu_opts_parse(qemu_find_opts("sandbox"), optarg, 1);
3753 if (!opts) {
3754 exit(1);
3756 break;
3757 case QEMU_OPTION_add_fd:
3758 #ifndef _WIN32
3759 opts = qemu_opts_parse(qemu_find_opts("add-fd"), optarg, 0);
3760 if (!opts) {
3761 exit(1);
3763 #else
3764 error_report("File descriptor passing is disabled on this "
3765 "platform");
3766 exit(1);
3767 #endif
3768 break;
3769 case QEMU_OPTION_object:
3770 opts = qemu_opts_parse(qemu_find_opts("object"), optarg, 1);
3771 if (!opts) {
3772 exit(1);
3774 break;
3775 case QEMU_OPTION_realtime:
3776 opts = qemu_opts_parse(qemu_find_opts("realtime"), optarg, 0);
3777 if (!opts) {
3778 exit(1);
3780 configure_realtime(opts);
3781 break;
3782 case QEMU_OPTION_msg:
3783 opts = qemu_opts_parse(qemu_find_opts("msg"), optarg, 0);
3784 if (!opts) {
3785 exit(1);
3787 configure_msg(opts);
3788 break;
3789 default:
3790 os_parse_cmd_args(popt->index, optarg);
3794 loc_set_none();
3796 if (qemu_init_main_loop()) {
3797 fprintf(stderr, "qemu_init_main_loop failed\n");
3798 exit(1);
3801 if (qemu_opts_foreach(qemu_find_opts("sandbox"), parse_sandbox, NULL, 0)) {
3802 exit(1);
3805 #ifndef _WIN32
3806 if (qemu_opts_foreach(qemu_find_opts("add-fd"), parse_add_fd, NULL, 1)) {
3807 exit(1);
3810 if (qemu_opts_foreach(qemu_find_opts("add-fd"), cleanup_add_fd, NULL, 1)) {
3811 exit(1);
3813 #endif
3815 if (machine == NULL) {
3816 fprintf(stderr, "No machine found.\n");
3817 exit(1);
3820 if (machine->hw_version) {
3821 qemu_set_version(machine->hw_version);
3824 if (qemu_opts_foreach(qemu_find_opts("object"),
3825 object_create, NULL, 0) != 0) {
3826 exit(1);
3829 /* Init CPU def lists, based on config
3830 * - Must be called after all the qemu_read_config_file() calls
3831 * - Must be called before list_cpus()
3832 * - Must be called before machine->init()
3834 cpudef_init();
3836 if (cpu_model && is_help_option(cpu_model)) {
3837 list_cpus(stdout, &fprintf, cpu_model);
3838 exit(0);
3841 /* Open the logfile at this point, if necessary. We can't open the logfile
3842 * when encountering either of the logging options (-d or -D) because the
3843 * other one may be encountered later on the command line, changing the
3844 * location or level of logging.
3846 if (log_mask) {
3847 int mask;
3848 if (log_file) {
3849 qemu_set_log_filename(log_file);
3852 mask = qemu_str_to_log_mask(log_mask);
3853 if (!mask) {
3854 qemu_print_log_usage(stdout);
3855 exit(1);
3857 qemu_set_log(mask);
3860 if (!is_daemonized()) {
3861 if (!trace_backend_init(trace_events, trace_file)) {
3862 exit(1);
3866 /* If no data_dir is specified then try to find it relative to the
3867 executable path. */
3868 if (data_dir_idx < ARRAY_SIZE(data_dir)) {
3869 data_dir[data_dir_idx] = os_find_datadir();
3870 if (data_dir[data_dir_idx] != NULL) {
3871 data_dir_idx++;
3874 /* If all else fails use the install path specified when building. */
3875 if (data_dir_idx < ARRAY_SIZE(data_dir)) {
3876 data_dir[data_dir_idx++] = CONFIG_QEMU_DATADIR;
3879 smp_parse(qemu_opts_find(qemu_find_opts("smp-opts"), NULL));
3881 machine->max_cpus = machine->max_cpus ?: 1; /* Default to UP */
3882 if (smp_cpus > machine->max_cpus) {
3883 fprintf(stderr, "Number of SMP cpus requested (%d), exceeds max cpus "
3884 "supported by machine `%s' (%d)\n", smp_cpus, machine->name,
3885 machine->max_cpus);
3886 exit(1);
3890 * Get the default machine options from the machine if it is not already
3891 * specified either by the configuration file or by the command line.
3893 if (machine->default_machine_opts) {
3894 qemu_opts_set_defaults(qemu_find_opts("machine"),
3895 machine->default_machine_opts, 0);
3898 qemu_opts_foreach(qemu_find_opts("device"), default_driver_check, NULL, 0);
3899 qemu_opts_foreach(qemu_find_opts("global"), default_driver_check, NULL, 0);
3901 if (machine->no_serial) {
3902 default_serial = 0;
3904 if (machine->no_parallel) {
3905 default_parallel = 0;
3907 if (!machine->use_virtcon) {
3908 default_virtcon = 0;
3910 if (!machine->use_sclp) {
3911 default_sclp = 0;
3913 if (machine->no_floppy) {
3914 default_floppy = 0;
3916 if (machine->no_cdrom) {
3917 default_cdrom = 0;
3919 if (machine->no_sdcard) {
3920 default_sdcard = 0;
3923 if (is_daemonized()) {
3924 /* According to documentation and historically, -nographic redirects
3925 * serial port, parallel port and monitor to stdio, which does not work
3926 * with -daemonize. We can redirect these to null instead, but since
3927 * -nographic is legacy, let's just error out.
3928 * We disallow -nographic only if all other ports are not redirected
3929 * explicitly, to not break existing legacy setups which uses
3930 * -nographic _and_ redirects all ports explicitly - this is valid
3931 * usage, -nographic is just a no-op in this case.
3933 if (display_type == DT_NOGRAPHIC
3934 && (default_parallel || default_serial
3935 || default_monitor || default_virtcon)) {
3936 fprintf(stderr, "-nographic can not be used with -daemonize\n");
3937 exit(1);
3939 #ifdef CONFIG_CURSES
3940 if (display_type == DT_CURSES) {
3941 fprintf(stderr, "curses display can not be used with -daemonize\n");
3942 exit(1);
3944 #endif
3947 if (display_type == DT_NOGRAPHIC) {
3948 if (default_parallel)
3949 add_device_config(DEV_PARALLEL, "null");
3950 if (default_serial && default_monitor) {
3951 add_device_config(DEV_SERIAL, "mon:stdio");
3952 } else if (default_virtcon && default_monitor) {
3953 add_device_config(DEV_VIRTCON, "mon:stdio");
3954 } else if (default_sclp && default_monitor) {
3955 add_device_config(DEV_SCLP, "mon:stdio");
3956 } else {
3957 if (default_serial)
3958 add_device_config(DEV_SERIAL, "stdio");
3959 if (default_virtcon)
3960 add_device_config(DEV_VIRTCON, "stdio");
3961 if (default_sclp) {
3962 add_device_config(DEV_SCLP, "stdio");
3964 if (default_monitor)
3965 monitor_parse("stdio", "readline");
3967 } else {
3968 if (default_serial)
3969 add_device_config(DEV_SERIAL, "vc:80Cx24C");
3970 if (default_parallel)
3971 add_device_config(DEV_PARALLEL, "vc:80Cx24C");
3972 if (default_monitor)
3973 monitor_parse("vc:80Cx24C", "readline");
3974 if (default_virtcon)
3975 add_device_config(DEV_VIRTCON, "vc:80Cx24C");
3976 if (default_sclp) {
3977 add_device_config(DEV_SCLP, "vc:80Cx24C");
3981 if (display_type == DT_DEFAULT && !display_remote) {
3982 #if defined(CONFIG_GTK)
3983 display_type = DT_GTK;
3984 #elif defined(CONFIG_SDL) || defined(CONFIG_COCOA)
3985 display_type = DT_SDL;
3986 #elif defined(CONFIG_VNC)
3987 vnc_display = "localhost:0,to=99";
3988 show_vnc_port = 1;
3989 #else
3990 display_type = DT_NONE;
3991 #endif
3994 if ((no_frame || alt_grab || ctrl_grab) && display_type != DT_SDL) {
3995 fprintf(stderr, "-no-frame, -alt-grab and -ctrl-grab are only valid "
3996 "for SDL, ignoring option\n");
3998 if (no_quit && (display_type != DT_GTK && display_type != DT_SDL)) {
3999 fprintf(stderr, "-no-quit is only valid for GTK and SDL, "
4000 "ignoring option\n");
4003 #if defined(CONFIG_GTK)
4004 if (display_type == DT_GTK) {
4005 early_gtk_display_init();
4007 #endif
4009 socket_init();
4011 if (qemu_opts_foreach(qemu_find_opts("chardev"), chardev_init_func, NULL, 1) != 0)
4012 exit(1);
4013 #ifdef CONFIG_VIRTFS
4014 if (qemu_opts_foreach(qemu_find_opts("fsdev"), fsdev_init_func, NULL, 1) != 0) {
4015 exit(1);
4017 #endif
4019 os_daemonize();
4021 if (pid_file && qemu_create_pidfile(pid_file) != 0) {
4022 os_pidfile_error();
4023 exit(1);
4026 /* init the memory */
4027 if (ram_size == 0) {
4028 ram_size = DEFAULT_RAM_SIZE * 1024 * 1024;
4031 if (qemu_opts_foreach(qemu_find_opts("device"), device_help_func, NULL, 0)
4032 != 0) {
4033 exit(0);
4036 configure_accelerator();
4038 if (qtest_chrdev) {
4039 Error *local_err = NULL;
4040 qtest_init(qtest_chrdev, qtest_log, &local_err);
4041 if (local_err) {
4042 error_report("%s", error_get_pretty(local_err));
4043 error_free(local_err);
4044 exit(1);
4048 machine_opts = qemu_get_machine_opts();
4049 kernel_filename = qemu_opt_get(machine_opts, "kernel");
4050 initrd_filename = qemu_opt_get(machine_opts, "initrd");
4051 kernel_cmdline = qemu_opt_get(machine_opts, "append");
4052 bios_name = qemu_opt_get(machine_opts, "firmware");
4054 boot_order = machine->default_boot_order;
4055 opts = qemu_opts_find(qemu_find_opts("boot-opts"), NULL);
4056 if (opts) {
4057 char *normal_boot_order;
4058 const char *order, *once;
4060 order = qemu_opt_get(opts, "order");
4061 if (order) {
4062 validate_bootdevices(order);
4063 boot_order = order;
4066 once = qemu_opt_get(opts, "once");
4067 if (once) {
4068 validate_bootdevices(once);
4069 normal_boot_order = g_strdup(boot_order);
4070 boot_order = once;
4071 qemu_register_reset(restore_boot_order, normal_boot_order);
4074 boot_menu = qemu_opt_get_bool(opts, "menu", boot_menu);
4075 boot_strict = qemu_opt_get_bool(opts, "strict", false);
4078 if (!kernel_cmdline) {
4079 kernel_cmdline = "";
4082 linux_boot = (kernel_filename != NULL);
4084 if (!linux_boot && *kernel_cmdline != '\0') {
4085 fprintf(stderr, "-append only allowed with -kernel option\n");
4086 exit(1);
4089 if (!linux_boot && initrd_filename != NULL) {
4090 fprintf(stderr, "-initrd only allowed with -kernel option\n");
4091 exit(1);
4094 if (!linux_boot && qemu_opt_get(machine_opts, "dtb")) {
4095 fprintf(stderr, "-dtb only allowed with -kernel option\n");
4096 exit(1);
4099 os_set_line_buffering();
4101 qemu_init_cpu_loop();
4102 qemu_mutex_lock_iothread();
4104 #ifdef CONFIG_SPICE
4105 /* spice needs the timers to be initialized by this point */
4106 qemu_spice_init();
4107 #endif
4109 if (icount_option && (kvm_enabled() || xen_enabled())) {
4110 fprintf(stderr, "-icount is not allowed with kvm or xen\n");
4111 exit(1);
4113 configure_icount(icount_option);
4115 /* clean up network at qemu process termination */
4116 atexit(&net_cleanup);
4118 if (net_init_clients() < 0) {
4119 exit(1);
4122 #ifdef CONFIG_TPM
4123 if (tpm_init() < 0) {
4124 exit(1);
4126 #endif
4128 /* init the bluetooth world */
4129 if (foreach_device_config(DEV_BT, bt_parse))
4130 exit(1);
4132 if (!xen_enabled()) {
4133 /* On 32-bit hosts, QEMU is limited by virtual address space */
4134 if (ram_size > (2047 << 20) && HOST_LONG_BITS == 32) {
4135 fprintf(stderr, "qemu: at most 2047 MB RAM can be simulated\n");
4136 exit(1);
4140 cpu_exec_init_all();
4142 blk_mig_init();
4144 /* open the virtual block devices */
4145 if (snapshot)
4146 qemu_opts_foreach(qemu_find_opts("drive"), drive_enable_snapshot, NULL, 0);
4147 if (qemu_opts_foreach(qemu_find_opts("drive"), drive_init_func,
4148 &machine->block_default_type, 1) != 0) {
4149 exit(1);
4152 default_drive(default_cdrom, snapshot, machine->block_default_type, 2,
4153 CDROM_OPTS);
4154 default_drive(default_floppy, snapshot, IF_FLOPPY, 0, FD_OPTS);
4155 default_drive(default_sdcard, snapshot, IF_SD, 0, SD_OPTS);
4157 register_savevm_live(NULL, "ram", 0, 4, &savevm_ram_handlers, NULL);
4159 if (nb_numa_nodes > 0) {
4160 int i;
4162 if (nb_numa_nodes > MAX_NODES) {
4163 nb_numa_nodes = MAX_NODES;
4166 /* If no memory size if given for any node, assume the default case
4167 * and distribute the available memory equally across all nodes
4169 for (i = 0; i < nb_numa_nodes; i++) {
4170 if (node_mem[i] != 0)
4171 break;
4173 if (i == nb_numa_nodes) {
4174 uint64_t usedmem = 0;
4176 /* On Linux, the each node's border has to be 8MB aligned,
4177 * the final node gets the rest.
4179 for (i = 0; i < nb_numa_nodes - 1; i++) {
4180 node_mem[i] = (ram_size / nb_numa_nodes) & ~((1 << 23UL) - 1);
4181 usedmem += node_mem[i];
4183 node_mem[i] = ram_size - usedmem;
4186 for (i = 0; i < nb_numa_nodes; i++) {
4187 if (!bitmap_empty(node_cpumask[i], MAX_CPUMASK_BITS)) {
4188 break;
4191 /* assigning the VCPUs round-robin is easier to implement, guest OSes
4192 * must cope with this anyway, because there are BIOSes out there in
4193 * real machines which also use this scheme.
4195 if (i == nb_numa_nodes) {
4196 for (i = 0; i < max_cpus; i++) {
4197 set_bit(i, node_cpumask[i % nb_numa_nodes]);
4202 if (qemu_opts_foreach(qemu_find_opts("mon"), mon_init_func, NULL, 1) != 0) {
4203 exit(1);
4206 if (foreach_device_config(DEV_SERIAL, serial_parse) < 0)
4207 exit(1);
4208 if (foreach_device_config(DEV_PARALLEL, parallel_parse) < 0)
4209 exit(1);
4210 if (foreach_device_config(DEV_VIRTCON, virtcon_parse) < 0)
4211 exit(1);
4212 if (foreach_device_config(DEV_SCLP, sclp_parse) < 0) {
4213 exit(1);
4215 if (foreach_device_config(DEV_DEBUGCON, debugcon_parse) < 0)
4216 exit(1);
4218 /* If no default VGA is requested, the default is "none". */
4219 if (default_vga) {
4220 if (cirrus_vga_available()) {
4221 vga_model = "cirrus";
4222 } else if (vga_available()) {
4223 vga_model = "std";
4226 select_vgahw(vga_model);
4228 if (watchdog) {
4229 i = select_watchdog(watchdog);
4230 if (i > 0)
4231 exit (i == 1 ? 1 : 0);
4234 if (machine->compat_props) {
4235 qdev_prop_register_global_list(machine->compat_props);
4237 qemu_add_globals();
4239 qdev_machine_init();
4241 QEMUMachineInitArgs args = { .machine = machine,
4242 .ram_size = ram_size,
4243 .boot_order = boot_order,
4244 .kernel_filename = kernel_filename,
4245 .kernel_cmdline = kernel_cmdline,
4246 .initrd_filename = initrd_filename,
4247 .cpu_model = cpu_model };
4248 machine->init(&args);
4250 audio_init();
4252 cpu_synchronize_all_post_init();
4254 set_numa_modes();
4256 current_machine = machine;
4258 /* init USB devices */
4259 if (usb_enabled(false)) {
4260 if (foreach_device_config(DEV_USB, usb_parse) < 0)
4261 exit(1);
4264 /* init generic devices */
4265 if (qemu_opts_foreach(qemu_find_opts("device"), device_init_func, NULL, 1) != 0)
4266 exit(1);
4268 net_check_clients();
4270 ds = init_displaystate();
4272 /* init local displays */
4273 switch (display_type) {
4274 case DT_NOGRAPHIC:
4275 (void)ds; /* avoid warning if no display is configured */
4276 break;
4277 #if defined(CONFIG_CURSES)
4278 case DT_CURSES:
4279 curses_display_init(ds, full_screen);
4280 break;
4281 #endif
4282 #if defined(CONFIG_SDL)
4283 case DT_SDL:
4284 sdl_display_init(ds, full_screen, no_frame);
4285 break;
4286 #elif defined(CONFIG_COCOA)
4287 case DT_SDL:
4288 cocoa_display_init(ds, full_screen);
4289 break;
4290 #endif
4291 #if defined(CONFIG_GTK)
4292 case DT_GTK:
4293 gtk_display_init(ds, full_screen);
4294 break;
4295 #endif
4296 default:
4297 break;
4300 /* must be after terminal init, SDL library changes signal handlers */
4301 os_setup_signal_handling();
4303 #ifdef CONFIG_VNC
4304 /* init remote displays */
4305 if (vnc_display) {
4306 Error *local_err = NULL;
4307 vnc_display_init(ds);
4308 vnc_display_open(ds, vnc_display, &local_err);
4309 if (local_err != NULL) {
4310 error_report("Failed to start VNC server on `%s': %s",
4311 vnc_display, error_get_pretty(local_err));
4312 error_free(local_err);
4313 exit(1);
4316 if (show_vnc_port) {
4317 printf("VNC server running on `%s'\n", vnc_display_local_addr(ds));
4320 #endif
4321 #ifdef CONFIG_SPICE
4322 if (using_spice) {
4323 qemu_spice_display_init();
4325 #endif
4327 if (foreach_device_config(DEV_GDB, gdbserver_start) < 0) {
4328 exit(1);
4331 qdev_machine_creation_done();
4333 if (rom_load_all() != 0) {
4334 fprintf(stderr, "rom loading failed\n");
4335 exit(1);
4338 /* TODO: once all bus devices are qdevified, this should be done
4339 * when bus is created by qdev.c */
4340 qemu_register_reset(qbus_reset_all_fn, sysbus_get_default());
4341 qemu_run_machine_init_done_notifiers();
4343 /* Done notifiers can load ROMs */
4344 rom_load_done();
4346 qemu_system_reset(VMRESET_SILENT);
4347 if (loadvm) {
4348 if (load_vmstate(loadvm) < 0) {
4349 autostart = 0;
4353 if (incoming) {
4354 Error *local_err = NULL;
4355 qemu_start_incoming_migration(incoming, &local_err);
4356 if (local_err) {
4357 error_report("-incoming %s: %s", incoming,
4358 error_get_pretty(local_err));
4359 error_free(local_err);
4360 exit(1);
4362 } else if (autostart) {
4363 vm_start();
4366 os_setup_post();
4368 if (is_daemonized()) {
4369 if (!trace_backend_init(trace_events, trace_file)) {
4370 exit(1);
4374 main_loop();
4375 bdrv_close_all();
4376 pause_all_vcpus();
4377 res_free();
4378 #ifdef CONFIG_TPM
4379 tpm_cleanup();
4380 #endif
4382 return 0;