rbd: Fix use after free in rbd_open()
[qemu/kevin.git] / vl.c
blob2e0d1a744cf48373a21e74a849c803da2e0a776f
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>
30 #include <zlib.h>
31 #include "qemu/bitmap.h"
33 /* Needed early for CONFIG_BSD etc. */
34 #include "config-host.h"
36 #ifndef _WIN32
37 #include <libgen.h>
38 #include <sys/times.h>
39 #include <sys/wait.h>
40 #include <termios.h>
41 #include <sys/mman.h>
42 #include <sys/ioctl.h>
43 #include <sys/resource.h>
44 #include <sys/socket.h>
45 #include <netinet/in.h>
46 #include <net/if.h>
47 #include <arpa/inet.h>
48 #include <dirent.h>
49 #include <netdb.h>
50 #include <sys/select.h>
52 #ifdef CONFIG_BSD
53 #include <sys/stat.h>
54 #if defined(__FreeBSD__) || defined(__FreeBSD_kernel__) || defined(__DragonFly__)
55 #include <sys/sysctl.h>
56 #else
57 #include <util.h>
58 #endif
59 #else
60 #ifdef __linux__
61 #include <malloc.h>
63 #include <linux/ppdev.h>
64 #include <linux/parport.h>
65 #endif
67 #ifdef CONFIG_SECCOMP
68 #include "sysemu/seccomp.h"
69 #endif
71 #ifdef __sun__
72 #include <sys/stat.h>
73 #include <sys/ethernet.h>
74 #include <sys/sockio.h>
75 #include <netinet/arp.h>
76 #include <netinet/in_systm.h>
77 #include <netinet/ip.h>
78 #include <netinet/ip_icmp.h> // must come after ip.h
79 #include <netinet/udp.h>
80 #include <netinet/tcp.h>
81 #include <net/if.h>
82 #include <syslog.h>
83 #include <stropts.h>
84 #endif
85 #endif
86 #endif
88 #if defined(CONFIG_VDE)
89 #include <libvdeplug.h>
90 #endif
92 #ifdef _WIN32
93 #include <windows.h>
94 #endif
96 #ifdef CONFIG_SDL
97 #if defined(__APPLE__) || defined(main)
98 #include <SDL.h>
99 int qemu_main(int argc, char **argv, char **envp);
100 int main(int argc, char **argv)
102 return qemu_main(argc, argv, NULL);
104 #undef main
105 #define main qemu_main
106 #endif
107 #endif /* CONFIG_SDL */
109 #ifdef CONFIG_COCOA
110 #undef main
111 #define main qemu_main
112 #endif /* CONFIG_COCOA */
114 #include <glib.h>
116 #include "hw/hw.h"
117 #include "hw/boards.h"
118 #include "hw/usb.h"
119 #include "hw/pcmcia.h"
120 #include "hw/i386/pc.h"
121 #include "hw/isa/isa.h"
122 #include "hw/bt.h"
123 #include "sysemu/watchdog.h"
124 #include "hw/i386/smbios.h"
125 #include "hw/xen/xen.h"
126 #include "hw/qdev.h"
127 #include "hw/loader.h"
128 #include "monitor/qdev.h"
129 #include "sysemu/bt.h"
130 #include "net/net.h"
131 #include "net/slirp.h"
132 #include "monitor/monitor.h"
133 #include "ui/console.h"
134 #include "sysemu/sysemu.h"
135 #include "exec/gdbstub.h"
136 #include "qemu/timer.h"
137 #include "sysemu/char.h"
138 #include "qemu/cache-utils.h"
139 #include "sysemu/blockdev.h"
140 #include "hw/block/block.h"
141 #include "migration/block.h"
142 #include "sysemu/tpm.h"
143 #include "sysemu/dma.h"
144 #include "audio/audio.h"
145 #include "migration/migration.h"
146 #include "sysemu/kvm.h"
147 #include "qapi/qmp/qjson.h"
148 #include "qemu/option.h"
149 #include "qemu/config-file.h"
150 #include "qemu-options.h"
151 #include "qmp-commands.h"
152 #include "qemu/main-loop.h"
153 #ifdef CONFIG_VIRTFS
154 #include "fsdev/qemu-fsdev.h"
155 #endif
156 #include "sysemu/qtest.h"
158 #include "disas/disas.h"
160 #include "qemu/sockets.h"
162 #include "slirp/libslirp.h"
164 #include "trace.h"
165 #include "trace/control.h"
166 #include "qemu/queue.h"
167 #include "sysemu/cpus.h"
168 #include "sysemu/arch_init.h"
169 #include "qemu/osdep.h"
171 #include "ui/qemu-spice.h"
172 #include "qapi/string-input-visitor.h"
174 //#define DEBUG_NET
175 //#define DEBUG_SLIRP
177 #define DEFAULT_RAM_SIZE 128
179 #define MAX_VIRTIO_CONSOLES 1
180 #define MAX_SCLP_CONSOLES 1
182 static const char *data_dir[16];
183 static int data_dir_idx;
184 const char *bios_name = NULL;
185 enum vga_retrace_method vga_retrace_method = VGA_RETRACE_DUMB;
186 DisplayType display_type = DT_DEFAULT;
187 static int display_remote;
188 const char* keyboard_layout = NULL;
189 ram_addr_t ram_size;
190 const char *mem_path = NULL;
191 #ifdef MAP_POPULATE
192 int mem_prealloc = 0; /* force preallocation of physical target memory */
193 #endif
194 int nb_nics;
195 NICInfo nd_table[MAX_NICS];
196 int autostart;
197 static int rtc_utc = 1;
198 static int rtc_date_offset = -1; /* -1 means no change */
199 QEMUClock *rtc_clock;
200 int vga_interface_type = VGA_NONE;
201 static int full_screen = 0;
202 #ifdef CONFIG_SDL
203 static int no_frame = 0;
204 #endif
205 int no_quit = 0;
206 CharDriverState *serial_hds[MAX_SERIAL_PORTS];
207 CharDriverState *parallel_hds[MAX_PARALLEL_PORTS];
208 CharDriverState *virtcon_hds[MAX_VIRTIO_CONSOLES];
209 CharDriverState *sclp_hds[MAX_SCLP_CONSOLES];
210 int win2k_install_hack = 0;
211 int singlestep = 0;
212 int smp_cpus = 1;
213 int max_cpus = 0;
214 int smp_cores = 1;
215 int smp_threads = 1;
216 #ifdef CONFIG_VNC
217 const char *vnc_display;
218 #endif
219 int acpi_enabled = 1;
220 int no_hpet = 0;
221 int fd_bootchk = 1;
222 static int no_reboot;
223 int no_shutdown = 0;
224 int cursor_hide = 1;
225 int graphic_rotate = 0;
226 const char *watchdog;
227 QEMUOptionRom option_rom[MAX_OPTION_ROMS];
228 int nb_option_roms;
229 int semihosting_enabled = 0;
230 int old_param = 0;
231 const char *qemu_name;
232 int alt_grab = 0;
233 int ctrl_grab = 0;
234 unsigned int nb_prom_envs = 0;
235 const char *prom_envs[MAX_PROM_ENVS];
236 int boot_menu;
237 bool boot_strict;
238 uint8_t *boot_splash_filedata;
239 size_t boot_splash_filedata_size;
240 uint8_t qemu_extra_params_fw[2];
242 typedef struct FWBootEntry FWBootEntry;
244 struct FWBootEntry {
245 QTAILQ_ENTRY(FWBootEntry) link;
246 int32_t bootindex;
247 DeviceState *dev;
248 char *suffix;
251 static QTAILQ_HEAD(, FWBootEntry) fw_boot_order =
252 QTAILQ_HEAD_INITIALIZER(fw_boot_order);
254 int nb_numa_nodes;
255 uint64_t node_mem[MAX_NODES];
256 unsigned long *node_cpumask[MAX_NODES];
258 uint8_t qemu_uuid[16];
260 static QEMUBootSetHandler *boot_set_handler;
261 static void *boot_set_opaque;
263 static NotifierList exit_notifiers =
264 NOTIFIER_LIST_INITIALIZER(exit_notifiers);
266 static NotifierList machine_init_done_notifiers =
267 NOTIFIER_LIST_INITIALIZER(machine_init_done_notifiers);
269 static bool tcg_allowed = true;
270 bool kvm_allowed;
271 bool xen_allowed;
272 uint32_t xen_domid;
273 enum xen_mode xen_mode = XEN_EMULATE;
274 static int tcg_tb_size;
276 static int default_serial = 1;
277 static int default_parallel = 1;
278 static int default_virtcon = 1;
279 static int default_sclp = 1;
280 static int default_monitor = 1;
281 static int default_floppy = 1;
282 static int default_cdrom = 1;
283 static int default_sdcard = 1;
284 static int default_vga = 1;
286 static struct {
287 const char *driver;
288 int *flag;
289 } default_list[] = {
290 { .driver = "isa-serial", .flag = &default_serial },
291 { .driver = "isa-parallel", .flag = &default_parallel },
292 { .driver = "isa-fdc", .flag = &default_floppy },
293 { .driver = "ide-cd", .flag = &default_cdrom },
294 { .driver = "ide-hd", .flag = &default_cdrom },
295 { .driver = "ide-drive", .flag = &default_cdrom },
296 { .driver = "scsi-cd", .flag = &default_cdrom },
297 { .driver = "virtio-serial-pci", .flag = &default_virtcon },
298 { .driver = "virtio-serial-s390", .flag = &default_virtcon },
299 { .driver = "virtio-serial", .flag = &default_virtcon },
300 { .driver = "VGA", .flag = &default_vga },
301 { .driver = "isa-vga", .flag = &default_vga },
302 { .driver = "cirrus-vga", .flag = &default_vga },
303 { .driver = "isa-cirrus-vga", .flag = &default_vga },
304 { .driver = "vmware-svga", .flag = &default_vga },
305 { .driver = "qxl-vga", .flag = &default_vga },
308 static QemuOptsList qemu_rtc_opts = {
309 .name = "rtc",
310 .head = QTAILQ_HEAD_INITIALIZER(qemu_rtc_opts.head),
311 .desc = {
313 .name = "base",
314 .type = QEMU_OPT_STRING,
316 .name = "clock",
317 .type = QEMU_OPT_STRING,
319 .name = "driftfix",
320 .type = QEMU_OPT_STRING,
322 { /* end of list */ }
326 static QemuOptsList qemu_sandbox_opts = {
327 .name = "sandbox",
328 .implied_opt_name = "enable",
329 .head = QTAILQ_HEAD_INITIALIZER(qemu_sandbox_opts.head),
330 .desc = {
332 .name = "enable",
333 .type = QEMU_OPT_BOOL,
335 { /* end of list */ }
339 static QemuOptsList qemu_trace_opts = {
340 .name = "trace",
341 .implied_opt_name = "trace",
342 .head = QTAILQ_HEAD_INITIALIZER(qemu_trace_opts.head),
343 .desc = {
345 .name = "events",
346 .type = QEMU_OPT_STRING,
348 .name = "file",
349 .type = QEMU_OPT_STRING,
351 { /* end of list */ }
355 static QemuOptsList qemu_option_rom_opts = {
356 .name = "option-rom",
357 .implied_opt_name = "romfile",
358 .head = QTAILQ_HEAD_INITIALIZER(qemu_option_rom_opts.head),
359 .desc = {
361 .name = "bootindex",
362 .type = QEMU_OPT_NUMBER,
363 }, {
364 .name = "romfile",
365 .type = QEMU_OPT_STRING,
367 { /* end of list */ }
371 static QemuOptsList qemu_machine_opts = {
372 .name = "machine",
373 .implied_opt_name = "type",
374 .merge_lists = true,
375 .head = QTAILQ_HEAD_INITIALIZER(qemu_machine_opts.head),
376 .desc = {
378 .name = "type",
379 .type = QEMU_OPT_STRING,
380 .help = "emulated machine"
381 }, {
382 .name = "accel",
383 .type = QEMU_OPT_STRING,
384 .help = "accelerator list",
385 }, {
386 .name = "kernel_irqchip",
387 .type = QEMU_OPT_BOOL,
388 .help = "use KVM in-kernel irqchip",
389 }, {
390 .name = "kvm_shadow_mem",
391 .type = QEMU_OPT_SIZE,
392 .help = "KVM shadow MMU size",
393 }, {
394 .name = "kernel",
395 .type = QEMU_OPT_STRING,
396 .help = "Linux kernel image file",
397 }, {
398 .name = "initrd",
399 .type = QEMU_OPT_STRING,
400 .help = "Linux initial ramdisk file",
401 }, {
402 .name = "append",
403 .type = QEMU_OPT_STRING,
404 .help = "Linux kernel command line",
405 }, {
406 .name = "dtb",
407 .type = QEMU_OPT_STRING,
408 .help = "Linux kernel device tree file",
409 }, {
410 .name = "dumpdtb",
411 .type = QEMU_OPT_STRING,
412 .help = "Dump current dtb to a file and quit",
413 }, {
414 .name = "phandle_start",
415 .type = QEMU_OPT_STRING,
416 .help = "The first phandle ID we may generate dynamically",
417 }, {
418 .name = "dt_compatible",
419 .type = QEMU_OPT_STRING,
420 .help = "Overrides the \"compatible\" property of the dt root node",
421 }, {
422 .name = "dump-guest-core",
423 .type = QEMU_OPT_BOOL,
424 .help = "Include guest memory in a core dump",
425 }, {
426 .name = "mem-merge",
427 .type = QEMU_OPT_BOOL,
428 .help = "enable/disable memory merge support",
430 .name = "usb",
431 .type = QEMU_OPT_BOOL,
432 .help = "Set on/off to enable/disable usb",
434 { /* End of list */ }
438 static QemuOptsList qemu_boot_opts = {
439 .name = "boot-opts",
440 .head = QTAILQ_HEAD_INITIALIZER(qemu_boot_opts.head),
441 .desc = {
442 /* the three names below are not used now */
444 .name = "order",
445 .type = QEMU_OPT_STRING,
446 }, {
447 .name = "once",
448 .type = QEMU_OPT_STRING,
449 }, {
450 .name = "menu",
451 .type = QEMU_OPT_STRING,
452 /* following are really used */
453 }, {
454 .name = "splash",
455 .type = QEMU_OPT_STRING,
456 }, {
457 .name = "splash-time",
458 .type = QEMU_OPT_STRING,
459 }, {
460 .name = "reboot-timeout",
461 .type = QEMU_OPT_STRING,
462 }, {
463 .name = "strict",
464 .type = QEMU_OPT_STRING,
466 { /*End of list */ }
470 static QemuOptsList qemu_add_fd_opts = {
471 .name = "add-fd",
472 .head = QTAILQ_HEAD_INITIALIZER(qemu_add_fd_opts.head),
473 .desc = {
475 .name = "fd",
476 .type = QEMU_OPT_NUMBER,
477 .help = "file descriptor of which a duplicate is added to fd set",
479 .name = "set",
480 .type = QEMU_OPT_NUMBER,
481 .help = "ID of the fd set to add fd to",
483 .name = "opaque",
484 .type = QEMU_OPT_STRING,
485 .help = "free-form string used to describe fd",
487 { /* end of list */ }
491 static QemuOptsList qemu_object_opts = {
492 .name = "object",
493 .implied_opt_name = "qom-type",
494 .head = QTAILQ_HEAD_INITIALIZER(qemu_object_opts.head),
495 .desc = {
500 static QemuOptsList qemu_tpmdev_opts = {
501 .name = "tpmdev",
502 .implied_opt_name = "type",
503 .head = QTAILQ_HEAD_INITIALIZER(qemu_tpmdev_opts.head),
504 .desc = {
505 /* options are defined in the TPM backends */
506 { /* end of list */ }
510 static QemuOptsList qemu_realtime_opts = {
511 .name = "realtime",
512 .head = QTAILQ_HEAD_INITIALIZER(qemu_realtime_opts.head),
513 .desc = {
515 .name = "mlock",
516 .type = QEMU_OPT_BOOL,
518 { /* end of list */ }
522 const char *qemu_get_vm_name(void)
524 return qemu_name;
527 static void res_free(void)
529 if (boot_splash_filedata != NULL) {
530 g_free(boot_splash_filedata);
531 boot_splash_filedata = NULL;
535 static int default_driver_check(QemuOpts *opts, void *opaque)
537 const char *driver = qemu_opt_get(opts, "driver");
538 int i;
540 if (!driver)
541 return 0;
542 for (i = 0; i < ARRAY_SIZE(default_list); i++) {
543 if (strcmp(default_list[i].driver, driver) != 0)
544 continue;
545 *(default_list[i].flag) = 0;
547 return 0;
550 /***********************************************************/
551 /* QEMU state */
553 static RunState current_run_state = RUN_STATE_PRELAUNCH;
555 typedef struct {
556 RunState from;
557 RunState to;
558 } RunStateTransition;
560 static const RunStateTransition runstate_transitions_def[] = {
561 /* from -> to */
562 { RUN_STATE_DEBUG, RUN_STATE_RUNNING },
564 { RUN_STATE_INMIGRATE, RUN_STATE_RUNNING },
565 { RUN_STATE_INMIGRATE, RUN_STATE_PAUSED },
567 { RUN_STATE_INTERNAL_ERROR, RUN_STATE_PAUSED },
568 { RUN_STATE_INTERNAL_ERROR, RUN_STATE_FINISH_MIGRATE },
570 { RUN_STATE_IO_ERROR, RUN_STATE_RUNNING },
571 { RUN_STATE_IO_ERROR, RUN_STATE_FINISH_MIGRATE },
573 { RUN_STATE_PAUSED, RUN_STATE_RUNNING },
574 { RUN_STATE_PAUSED, RUN_STATE_FINISH_MIGRATE },
576 { RUN_STATE_POSTMIGRATE, RUN_STATE_RUNNING },
577 { RUN_STATE_POSTMIGRATE, RUN_STATE_FINISH_MIGRATE },
579 { RUN_STATE_PRELAUNCH, RUN_STATE_RUNNING },
580 { RUN_STATE_PRELAUNCH, RUN_STATE_FINISH_MIGRATE },
581 { RUN_STATE_PRELAUNCH, RUN_STATE_INMIGRATE },
583 { RUN_STATE_FINISH_MIGRATE, RUN_STATE_RUNNING },
584 { RUN_STATE_FINISH_MIGRATE, RUN_STATE_POSTMIGRATE },
586 { RUN_STATE_RESTORE_VM, RUN_STATE_RUNNING },
588 { RUN_STATE_RUNNING, RUN_STATE_DEBUG },
589 { RUN_STATE_RUNNING, RUN_STATE_INTERNAL_ERROR },
590 { RUN_STATE_RUNNING, RUN_STATE_IO_ERROR },
591 { RUN_STATE_RUNNING, RUN_STATE_PAUSED },
592 { RUN_STATE_RUNNING, RUN_STATE_FINISH_MIGRATE },
593 { RUN_STATE_RUNNING, RUN_STATE_RESTORE_VM },
594 { RUN_STATE_RUNNING, RUN_STATE_SAVE_VM },
595 { RUN_STATE_RUNNING, RUN_STATE_SHUTDOWN },
596 { RUN_STATE_RUNNING, RUN_STATE_WATCHDOG },
598 { RUN_STATE_SAVE_VM, RUN_STATE_RUNNING },
600 { RUN_STATE_SHUTDOWN, RUN_STATE_PAUSED },
601 { RUN_STATE_SHUTDOWN, RUN_STATE_FINISH_MIGRATE },
603 { RUN_STATE_DEBUG, RUN_STATE_SUSPENDED },
604 { RUN_STATE_RUNNING, RUN_STATE_SUSPENDED },
605 { RUN_STATE_SUSPENDED, RUN_STATE_RUNNING },
606 { RUN_STATE_SUSPENDED, RUN_STATE_FINISH_MIGRATE },
608 { RUN_STATE_WATCHDOG, RUN_STATE_RUNNING },
609 { RUN_STATE_WATCHDOG, RUN_STATE_FINISH_MIGRATE },
611 { RUN_STATE_MAX, RUN_STATE_MAX },
614 static bool runstate_valid_transitions[RUN_STATE_MAX][RUN_STATE_MAX];
616 bool runstate_check(RunState state)
618 return current_run_state == state;
621 static void runstate_init(void)
623 const RunStateTransition *p;
625 memset(&runstate_valid_transitions, 0, sizeof(runstate_valid_transitions));
627 for (p = &runstate_transitions_def[0]; p->from != RUN_STATE_MAX; p++) {
628 runstate_valid_transitions[p->from][p->to] = true;
632 /* This function will abort() on invalid state transitions */
633 void runstate_set(RunState new_state)
635 assert(new_state < RUN_STATE_MAX);
637 if (!runstate_valid_transitions[current_run_state][new_state]) {
638 fprintf(stderr, "ERROR: invalid runstate transition: '%s' -> '%s'\n",
639 RunState_lookup[current_run_state],
640 RunState_lookup[new_state]);
641 abort();
643 trace_runstate_set(new_state);
644 current_run_state = new_state;
647 int runstate_is_running(void)
649 return runstate_check(RUN_STATE_RUNNING);
652 StatusInfo *qmp_query_status(Error **errp)
654 StatusInfo *info = g_malloc0(sizeof(*info));
656 info->running = runstate_is_running();
657 info->singlestep = singlestep;
658 info->status = current_run_state;
660 return info;
663 /***********************************************************/
664 /* real time host monotonic timer */
666 /***********************************************************/
667 /* host time/date access */
668 void qemu_get_timedate(struct tm *tm, int offset)
670 time_t ti;
672 time(&ti);
673 ti += offset;
674 if (rtc_date_offset == -1) {
675 if (rtc_utc)
676 gmtime_r(&ti, tm);
677 else
678 localtime_r(&ti, tm);
679 } else {
680 ti -= rtc_date_offset;
681 gmtime_r(&ti, tm);
685 int qemu_timedate_diff(struct tm *tm)
687 time_t seconds;
689 if (rtc_date_offset == -1)
690 if (rtc_utc)
691 seconds = mktimegm(tm);
692 else {
693 struct tm tmp = *tm;
694 tmp.tm_isdst = -1; /* use timezone to figure it out */
695 seconds = mktime(&tmp);
697 else
698 seconds = mktimegm(tm) + rtc_date_offset;
700 return seconds - time(NULL);
703 void rtc_change_mon_event(struct tm *tm)
705 QObject *data;
707 data = qobject_from_jsonf("{ 'offset': %d }", qemu_timedate_diff(tm));
708 monitor_protocol_event(QEVENT_RTC_CHANGE, data);
709 qobject_decref(data);
712 static void configure_rtc_date_offset(const char *startdate, int legacy)
714 time_t rtc_start_date;
715 struct tm tm;
717 if (!strcmp(startdate, "now") && legacy) {
718 rtc_date_offset = -1;
719 } else {
720 if (sscanf(startdate, "%d-%d-%dT%d:%d:%d",
721 &tm.tm_year,
722 &tm.tm_mon,
723 &tm.tm_mday,
724 &tm.tm_hour,
725 &tm.tm_min,
726 &tm.tm_sec) == 6) {
727 /* OK */
728 } else if (sscanf(startdate, "%d-%d-%d",
729 &tm.tm_year,
730 &tm.tm_mon,
731 &tm.tm_mday) == 3) {
732 tm.tm_hour = 0;
733 tm.tm_min = 0;
734 tm.tm_sec = 0;
735 } else {
736 goto date_fail;
738 tm.tm_year -= 1900;
739 tm.tm_mon--;
740 rtc_start_date = mktimegm(&tm);
741 if (rtc_start_date == -1) {
742 date_fail:
743 fprintf(stderr, "Invalid date format. Valid formats are:\n"
744 "'2006-06-17T16:01:21' or '2006-06-17'\n");
745 exit(1);
747 rtc_date_offset = time(NULL) - rtc_start_date;
751 static void configure_rtc(QemuOpts *opts)
753 const char *value;
755 value = qemu_opt_get(opts, "base");
756 if (value) {
757 if (!strcmp(value, "utc")) {
758 rtc_utc = 1;
759 } else if (!strcmp(value, "localtime")) {
760 rtc_utc = 0;
761 } else {
762 configure_rtc_date_offset(value, 0);
765 value = qemu_opt_get(opts, "clock");
766 if (value) {
767 if (!strcmp(value, "host")) {
768 rtc_clock = host_clock;
769 } else if (!strcmp(value, "rt")) {
770 rtc_clock = rt_clock;
771 } else if (!strcmp(value, "vm")) {
772 rtc_clock = vm_clock;
773 } else {
774 fprintf(stderr, "qemu: invalid option value '%s'\n", value);
775 exit(1);
778 value = qemu_opt_get(opts, "driftfix");
779 if (value) {
780 if (!strcmp(value, "slew")) {
781 static GlobalProperty slew_lost_ticks[] = {
783 .driver = "mc146818rtc",
784 .property = "lost_tick_policy",
785 .value = "slew",
787 { /* end of list */ }
790 qdev_prop_register_global_list(slew_lost_ticks);
791 } else if (!strcmp(value, "none")) {
792 /* discard is default */
793 } else {
794 fprintf(stderr, "qemu: invalid option value '%s'\n", value);
795 exit(1);
800 /***********************************************************/
801 /* Bluetooth support */
802 static int nb_hcis;
803 static int cur_hci;
804 static struct HCIInfo *hci_table[MAX_NICS];
806 static struct bt_vlan_s {
807 struct bt_scatternet_s net;
808 int id;
809 struct bt_vlan_s *next;
810 } *first_bt_vlan;
812 /* find or alloc a new bluetooth "VLAN" */
813 static struct bt_scatternet_s *qemu_find_bt_vlan(int id)
815 struct bt_vlan_s **pvlan, *vlan;
816 for (vlan = first_bt_vlan; vlan != NULL; vlan = vlan->next) {
817 if (vlan->id == id)
818 return &vlan->net;
820 vlan = g_malloc0(sizeof(struct bt_vlan_s));
821 vlan->id = id;
822 pvlan = &first_bt_vlan;
823 while (*pvlan != NULL)
824 pvlan = &(*pvlan)->next;
825 *pvlan = vlan;
826 return &vlan->net;
829 static void null_hci_send(struct HCIInfo *hci, const uint8_t *data, int len)
833 static int null_hci_addr_set(struct HCIInfo *hci, const uint8_t *bd_addr)
835 return -ENOTSUP;
838 static struct HCIInfo null_hci = {
839 .cmd_send = null_hci_send,
840 .sco_send = null_hci_send,
841 .acl_send = null_hci_send,
842 .bdaddr_set = null_hci_addr_set,
845 struct HCIInfo *qemu_next_hci(void)
847 if (cur_hci == nb_hcis)
848 return &null_hci;
850 return hci_table[cur_hci++];
853 static struct HCIInfo *hci_init(const char *str)
855 char *endp;
856 struct bt_scatternet_s *vlan = 0;
858 if (!strcmp(str, "null"))
859 /* null */
860 return &null_hci;
861 else if (!strncmp(str, "host", 4) && (str[4] == '\0' || str[4] == ':'))
862 /* host[:hciN] */
863 return bt_host_hci(str[4] ? str + 5 : "hci0");
864 else if (!strncmp(str, "hci", 3)) {
865 /* hci[,vlan=n] */
866 if (str[3]) {
867 if (!strncmp(str + 3, ",vlan=", 6)) {
868 vlan = qemu_find_bt_vlan(strtol(str + 9, &endp, 0));
869 if (*endp)
870 vlan = 0;
872 } else
873 vlan = qemu_find_bt_vlan(0);
874 if (vlan)
875 return bt_new_hci(vlan);
878 fprintf(stderr, "qemu: Unknown bluetooth HCI `%s'.\n", str);
880 return 0;
883 static int bt_hci_parse(const char *str)
885 struct HCIInfo *hci;
886 bdaddr_t bdaddr;
888 if (nb_hcis >= MAX_NICS) {
889 fprintf(stderr, "qemu: Too many bluetooth HCIs (max %i).\n", MAX_NICS);
890 return -1;
893 hci = hci_init(str);
894 if (!hci)
895 return -1;
897 bdaddr.b[0] = 0x52;
898 bdaddr.b[1] = 0x54;
899 bdaddr.b[2] = 0x00;
900 bdaddr.b[3] = 0x12;
901 bdaddr.b[4] = 0x34;
902 bdaddr.b[5] = 0x56 + nb_hcis;
903 hci->bdaddr_set(hci, bdaddr.b);
905 hci_table[nb_hcis++] = hci;
907 return 0;
910 static void bt_vhci_add(int vlan_id)
912 struct bt_scatternet_s *vlan = qemu_find_bt_vlan(vlan_id);
914 if (!vlan->slave)
915 fprintf(stderr, "qemu: warning: adding a VHCI to "
916 "an empty scatternet %i\n", vlan_id);
918 bt_vhci_init(bt_new_hci(vlan));
921 static struct bt_device_s *bt_device_add(const char *opt)
923 struct bt_scatternet_s *vlan;
924 int vlan_id = 0;
925 char *endp = strstr(opt, ",vlan=");
926 int len = (endp ? endp - opt : strlen(opt)) + 1;
927 char devname[10];
929 pstrcpy(devname, MIN(sizeof(devname), len), opt);
931 if (endp) {
932 vlan_id = strtol(endp + 6, &endp, 0);
933 if (*endp) {
934 fprintf(stderr, "qemu: unrecognised bluetooth vlan Id\n");
935 return 0;
939 vlan = qemu_find_bt_vlan(vlan_id);
941 if (!vlan->slave)
942 fprintf(stderr, "qemu: warning: adding a slave device to "
943 "an empty scatternet %i\n", vlan_id);
945 if (!strcmp(devname, "keyboard"))
946 return bt_keyboard_init(vlan);
948 fprintf(stderr, "qemu: unsupported bluetooth device `%s'\n", devname);
949 return 0;
952 static int bt_parse(const char *opt)
954 const char *endp, *p;
955 int vlan;
957 if (strstart(opt, "hci", &endp)) {
958 if (!*endp || *endp == ',') {
959 if (*endp)
960 if (!strstart(endp, ",vlan=", 0))
961 opt = endp + 1;
963 return bt_hci_parse(opt);
965 } else if (strstart(opt, "vhci", &endp)) {
966 if (!*endp || *endp == ',') {
967 if (*endp) {
968 if (strstart(endp, ",vlan=", &p)) {
969 vlan = strtol(p, (char **) &endp, 0);
970 if (*endp) {
971 fprintf(stderr, "qemu: bad scatternet '%s'\n", p);
972 return 1;
974 } else {
975 fprintf(stderr, "qemu: bad parameter '%s'\n", endp + 1);
976 return 1;
978 } else
979 vlan = 0;
981 bt_vhci_add(vlan);
982 return 0;
984 } else if (strstart(opt, "device:", &endp))
985 return !bt_device_add(endp);
987 fprintf(stderr, "qemu: bad bluetooth parameter '%s'\n", opt);
988 return 1;
991 static int parse_sandbox(QemuOpts *opts, void *opaque)
993 /* FIXME: change this to true for 1.3 */
994 if (qemu_opt_get_bool(opts, "enable", false)) {
995 #ifdef CONFIG_SECCOMP
996 if (seccomp_start() < 0) {
997 qerror_report(ERROR_CLASS_GENERIC_ERROR,
998 "failed to install seccomp syscall filter in the kernel");
999 return -1;
1001 #else
1002 qerror_report(ERROR_CLASS_GENERIC_ERROR,
1003 "sandboxing request but seccomp is not compiled into this build");
1004 return -1;
1005 #endif
1008 return 0;
1011 /*********QEMU USB setting******/
1012 bool usb_enabled(bool default_usb)
1014 QemuOpts *mach_opts;
1015 mach_opts = qemu_opts_find(qemu_find_opts("machine"), 0);
1016 if (mach_opts) {
1017 return qemu_opt_get_bool(mach_opts, "usb", default_usb);
1019 return default_usb;
1022 #ifndef _WIN32
1023 static int parse_add_fd(QemuOpts *opts, void *opaque)
1025 int fd, dupfd, flags;
1026 int64_t fdset_id;
1027 const char *fd_opaque = NULL;
1029 fd = qemu_opt_get_number(opts, "fd", -1);
1030 fdset_id = qemu_opt_get_number(opts, "set", -1);
1031 fd_opaque = qemu_opt_get(opts, "opaque");
1033 if (fd < 0) {
1034 qerror_report(ERROR_CLASS_GENERIC_ERROR,
1035 "fd option is required and must be non-negative");
1036 return -1;
1039 if (fd <= STDERR_FILENO) {
1040 qerror_report(ERROR_CLASS_GENERIC_ERROR,
1041 "fd cannot be a standard I/O stream");
1042 return -1;
1046 * All fds inherited across exec() necessarily have FD_CLOEXEC
1047 * clear, while qemu sets FD_CLOEXEC on all other fds used internally.
1049 flags = fcntl(fd, F_GETFD);
1050 if (flags == -1 || (flags & FD_CLOEXEC)) {
1051 qerror_report(ERROR_CLASS_GENERIC_ERROR,
1052 "fd is not valid or already in use");
1053 return -1;
1056 if (fdset_id < 0) {
1057 qerror_report(ERROR_CLASS_GENERIC_ERROR,
1058 "set option is required and must be non-negative");
1059 return -1;
1062 #ifdef F_DUPFD_CLOEXEC
1063 dupfd = fcntl(fd, F_DUPFD_CLOEXEC, 0);
1064 #else
1065 dupfd = dup(fd);
1066 if (dupfd != -1) {
1067 qemu_set_cloexec(dupfd);
1069 #endif
1070 if (dupfd == -1) {
1071 qerror_report(ERROR_CLASS_GENERIC_ERROR,
1072 "Error duplicating fd: %s", strerror(errno));
1073 return -1;
1076 /* add the duplicate fd, and optionally the opaque string, to the fd set */
1077 monitor_fdset_add_fd(dupfd, true, fdset_id, fd_opaque ? true : false,
1078 fd_opaque, NULL);
1080 return 0;
1083 static int cleanup_add_fd(QemuOpts *opts, void *opaque)
1085 int fd;
1087 fd = qemu_opt_get_number(opts, "fd", -1);
1088 close(fd);
1090 return 0;
1092 #endif
1094 /***********************************************************/
1095 /* QEMU Block devices */
1097 #define HD_OPTS "media=disk"
1098 #define CDROM_OPTS "media=cdrom"
1099 #define FD_OPTS ""
1100 #define PFLASH_OPTS ""
1101 #define MTD_OPTS ""
1102 #define SD_OPTS ""
1104 static int drive_init_func(QemuOpts *opts, void *opaque)
1106 BlockInterfaceType *block_default_type = opaque;
1108 return drive_init(opts, *block_default_type) == NULL;
1111 static int drive_enable_snapshot(QemuOpts *opts, void *opaque)
1113 if (NULL == qemu_opt_get(opts, "snapshot")) {
1114 qemu_opt_set(opts, "snapshot", "on");
1116 return 0;
1119 static void default_drive(int enable, int snapshot, BlockInterfaceType type,
1120 int index, const char *optstr)
1122 QemuOpts *opts;
1124 if (!enable || drive_get_by_index(type, index)) {
1125 return;
1128 opts = drive_add(type, index, NULL, optstr);
1129 if (snapshot) {
1130 drive_enable_snapshot(opts, NULL);
1132 if (!drive_init(opts, type)) {
1133 exit(1);
1137 void qemu_register_boot_set(QEMUBootSetHandler *func, void *opaque)
1139 boot_set_handler = func;
1140 boot_set_opaque = opaque;
1143 int qemu_boot_set(const char *boot_devices)
1145 if (!boot_set_handler) {
1146 return -EINVAL;
1148 return boot_set_handler(boot_set_opaque, boot_devices);
1151 static void validate_bootdevices(char *devices)
1153 /* We just do some generic consistency checks */
1154 const char *p;
1155 int bitmap = 0;
1157 for (p = devices; *p != '\0'; p++) {
1158 /* Allowed boot devices are:
1159 * a-b: floppy disk drives
1160 * c-f: IDE disk drives
1161 * g-m: machine implementation dependent drives
1162 * n-p: network devices
1163 * It's up to each machine implementation to check if the given boot
1164 * devices match the actual hardware implementation and firmware
1165 * features.
1167 if (*p < 'a' || *p > 'p') {
1168 fprintf(stderr, "Invalid boot device '%c'\n", *p);
1169 exit(1);
1171 if (bitmap & (1 << (*p - 'a'))) {
1172 fprintf(stderr, "Boot device '%c' was given twice\n", *p);
1173 exit(1);
1175 bitmap |= 1 << (*p - 'a');
1179 static void restore_boot_devices(void *opaque)
1181 char *standard_boot_devices = opaque;
1182 static int first = 1;
1184 /* Restore boot order and remove ourselves after the first boot */
1185 if (first) {
1186 first = 0;
1187 return;
1190 qemu_boot_set(standard_boot_devices);
1192 qemu_unregister_reset(restore_boot_devices, standard_boot_devices);
1193 g_free(standard_boot_devices);
1196 void add_boot_device_path(int32_t bootindex, DeviceState *dev,
1197 const char *suffix)
1199 FWBootEntry *node, *i;
1201 if (bootindex < 0) {
1202 return;
1205 assert(dev != NULL || suffix != NULL);
1207 node = g_malloc0(sizeof(FWBootEntry));
1208 node->bootindex = bootindex;
1209 node->suffix = suffix ? g_strdup(suffix) : NULL;
1210 node->dev = dev;
1212 QTAILQ_FOREACH(i, &fw_boot_order, link) {
1213 if (i->bootindex == bootindex) {
1214 fprintf(stderr, "Two devices with same boot index %d\n", bootindex);
1215 exit(1);
1216 } else if (i->bootindex < bootindex) {
1217 continue;
1219 QTAILQ_INSERT_BEFORE(i, node, link);
1220 return;
1222 QTAILQ_INSERT_TAIL(&fw_boot_order, node, link);
1226 * This function returns null terminated string that consist of new line
1227 * separated device paths.
1229 * memory pointed by "size" is assigned total length of the array in bytes
1232 char *get_boot_devices_list(size_t *size)
1234 FWBootEntry *i;
1235 size_t total = 0;
1236 char *list = NULL;
1238 QTAILQ_FOREACH(i, &fw_boot_order, link) {
1239 char *devpath = NULL, *bootpath;
1240 size_t len;
1242 if (i->dev) {
1243 devpath = qdev_get_fw_dev_path(i->dev);
1244 assert(devpath);
1247 if (i->suffix && devpath) {
1248 size_t bootpathlen = strlen(devpath) + strlen(i->suffix) + 1;
1250 bootpath = g_malloc(bootpathlen);
1251 snprintf(bootpath, bootpathlen, "%s%s", devpath, i->suffix);
1252 g_free(devpath);
1253 } else if (devpath) {
1254 bootpath = devpath;
1255 } else {
1256 assert(i->suffix);
1257 bootpath = g_strdup(i->suffix);
1260 if (total) {
1261 list[total-1] = '\n';
1263 len = strlen(bootpath) + 1;
1264 list = g_realloc(list, total + len);
1265 memcpy(&list[total], bootpath, len);
1266 total += len;
1267 g_free(bootpath);
1270 *size = total;
1272 if (boot_strict && *size > 0) {
1273 list[total-1] = '\n';
1274 list = g_realloc(list, total + 5);
1275 memcpy(&list[total], "HALT", 5);
1276 *size = total + 5;
1278 return list;
1281 static void numa_node_parse_cpus(int nodenr, const char *cpus)
1283 char *endptr;
1284 unsigned long long value, endvalue;
1286 /* Empty CPU range strings will be considered valid, they will simply
1287 * not set any bit in the CPU bitmap.
1289 if (!*cpus) {
1290 return;
1293 if (parse_uint(cpus, &value, &endptr, 10) < 0) {
1294 goto error;
1296 if (*endptr == '-') {
1297 if (parse_uint_full(endptr + 1, &endvalue, 10) < 0) {
1298 goto error;
1300 } else if (*endptr == '\0') {
1301 endvalue = value;
1302 } else {
1303 goto error;
1306 if (endvalue >= MAX_CPUMASK_BITS) {
1307 endvalue = MAX_CPUMASK_BITS - 1;
1308 fprintf(stderr,
1309 "qemu: NUMA: A max of %d VCPUs are supported\n",
1310 MAX_CPUMASK_BITS);
1313 if (endvalue < value) {
1314 goto error;
1317 bitmap_set(node_cpumask[nodenr], value, endvalue-value+1);
1318 return;
1320 error:
1321 fprintf(stderr, "qemu: Invalid NUMA CPU range: %s\n", cpus);
1322 exit(1);
1325 static void numa_add(const char *optarg)
1327 char option[128];
1328 char *endptr;
1329 unsigned long long nodenr;
1331 optarg = get_opt_name(option, 128, optarg, ',');
1332 if (*optarg == ',') {
1333 optarg++;
1335 if (!strcmp(option, "node")) {
1337 if (nb_numa_nodes >= MAX_NODES) {
1338 fprintf(stderr, "qemu: too many NUMA nodes\n");
1339 exit(1);
1342 if (get_param_value(option, 128, "nodeid", optarg) == 0) {
1343 nodenr = nb_numa_nodes;
1344 } else {
1345 if (parse_uint_full(option, &nodenr, 10) < 0) {
1346 fprintf(stderr, "qemu: Invalid NUMA nodeid: %s\n", option);
1347 exit(1);
1351 if (nodenr >= MAX_NODES) {
1352 fprintf(stderr, "qemu: invalid NUMA nodeid: %llu\n", nodenr);
1353 exit(1);
1356 if (get_param_value(option, 128, "mem", optarg) == 0) {
1357 node_mem[nodenr] = 0;
1358 } else {
1359 int64_t sval;
1360 sval = strtosz(option, &endptr);
1361 if (sval < 0 || *endptr) {
1362 fprintf(stderr, "qemu: invalid numa mem size: %s\n", optarg);
1363 exit(1);
1365 node_mem[nodenr] = sval;
1367 if (get_param_value(option, 128, "cpus", optarg) != 0) {
1368 numa_node_parse_cpus(nodenr, option);
1370 nb_numa_nodes++;
1371 } else {
1372 fprintf(stderr, "Invalid -numa option: %s\n", option);
1373 exit(1);
1377 static void smp_parse(const char *optarg)
1379 int smp, sockets = 0, threads = 0, cores = 0;
1380 char *endptr;
1381 char option[128];
1383 smp = strtoul(optarg, &endptr, 10);
1384 if (endptr != optarg) {
1385 if (*endptr == ',') {
1386 endptr++;
1389 if (get_param_value(option, 128, "sockets", endptr) != 0)
1390 sockets = strtoull(option, NULL, 10);
1391 if (get_param_value(option, 128, "cores", endptr) != 0)
1392 cores = strtoull(option, NULL, 10);
1393 if (get_param_value(option, 128, "threads", endptr) != 0)
1394 threads = strtoull(option, NULL, 10);
1395 if (get_param_value(option, 128, "maxcpus", endptr) != 0)
1396 max_cpus = strtoull(option, NULL, 10);
1398 /* compute missing values, prefer sockets over cores over threads */
1399 if (smp == 0 || sockets == 0) {
1400 sockets = sockets > 0 ? sockets : 1;
1401 cores = cores > 0 ? cores : 1;
1402 threads = threads > 0 ? threads : 1;
1403 if (smp == 0) {
1404 smp = cores * threads * sockets;
1406 } else {
1407 if (cores == 0) {
1408 threads = threads > 0 ? threads : 1;
1409 cores = smp / (sockets * threads);
1410 } else {
1411 threads = smp / (cores * sockets);
1414 smp_cpus = smp;
1415 smp_cores = cores > 0 ? cores : 1;
1416 smp_threads = threads > 0 ? threads : 1;
1417 if (max_cpus == 0)
1418 max_cpus = smp_cpus;
1421 static void configure_realtime(QemuOpts *opts)
1423 bool enable_mlock;
1425 enable_mlock = qemu_opt_get_bool(opts, "mlock", true);
1427 if (enable_mlock) {
1428 if (os_mlock() < 0) {
1429 fprintf(stderr, "qemu: locking memory failed\n");
1430 exit(1);
1435 /***********************************************************/
1436 /* USB devices */
1438 static int usb_device_add(const char *devname)
1440 const char *p;
1441 USBDevice *dev = NULL;
1443 if (!usb_enabled(false)) {
1444 return -1;
1447 /* drivers with .usbdevice_name entry in USBDeviceInfo */
1448 dev = usbdevice_create(devname);
1449 if (dev)
1450 goto done;
1452 /* the other ones */
1453 #ifndef CONFIG_LINUX
1454 /* only the linux version is qdev-ified, usb-bsd still needs this */
1455 if (strstart(devname, "host:", &p)) {
1456 dev = usb_host_device_open(usb_bus_find(-1), p);
1457 } else
1458 #endif
1459 if (!strcmp(devname, "bt") || strstart(devname, "bt:", &p)) {
1460 dev = usb_bt_init(usb_bus_find(-1),
1461 devname[2] ? hci_init(p)
1462 : bt_new_hci(qemu_find_bt_vlan(0)));
1463 } else {
1464 return -1;
1466 if (!dev)
1467 return -1;
1469 done:
1470 return 0;
1473 static int usb_device_del(const char *devname)
1475 int bus_num, addr;
1476 const char *p;
1478 if (strstart(devname, "host:", &p)) {
1479 return -1;
1482 if (!usb_enabled(false)) {
1483 return -1;
1486 p = strchr(devname, '.');
1487 if (!p)
1488 return -1;
1489 bus_num = strtoul(devname, NULL, 0);
1490 addr = strtoul(p + 1, NULL, 0);
1492 return usb_device_delete_addr(bus_num, addr);
1495 static int usb_parse(const char *cmdline)
1497 int r;
1498 r = usb_device_add(cmdline);
1499 if (r < 0) {
1500 fprintf(stderr, "qemu: could not add USB device '%s'\n", cmdline);
1502 return r;
1505 void do_usb_add(Monitor *mon, const QDict *qdict)
1507 const char *devname = qdict_get_str(qdict, "devname");
1508 if (usb_device_add(devname) < 0) {
1509 error_report("could not add USB device '%s'", devname);
1513 void do_usb_del(Monitor *mon, const QDict *qdict)
1515 const char *devname = qdict_get_str(qdict, "devname");
1516 if (usb_device_del(devname) < 0) {
1517 error_report("could not delete USB device '%s'", devname);
1521 /***********************************************************/
1522 /* PCMCIA/Cardbus */
1524 static struct pcmcia_socket_entry_s {
1525 PCMCIASocket *socket;
1526 struct pcmcia_socket_entry_s *next;
1527 } *pcmcia_sockets = 0;
1529 void pcmcia_socket_register(PCMCIASocket *socket)
1531 struct pcmcia_socket_entry_s *entry;
1533 entry = g_malloc(sizeof(struct pcmcia_socket_entry_s));
1534 entry->socket = socket;
1535 entry->next = pcmcia_sockets;
1536 pcmcia_sockets = entry;
1539 void pcmcia_socket_unregister(PCMCIASocket *socket)
1541 struct pcmcia_socket_entry_s *entry, **ptr;
1543 ptr = &pcmcia_sockets;
1544 for (entry = *ptr; entry; ptr = &entry->next, entry = *ptr)
1545 if (entry->socket == socket) {
1546 *ptr = entry->next;
1547 g_free(entry);
1551 void pcmcia_info(Monitor *mon, const QDict *qdict)
1553 struct pcmcia_socket_entry_s *iter;
1555 if (!pcmcia_sockets)
1556 monitor_printf(mon, "No PCMCIA sockets\n");
1558 for (iter = pcmcia_sockets; iter; iter = iter->next)
1559 monitor_printf(mon, "%s: %s\n", iter->socket->slot_string,
1560 iter->socket->attached ? iter->socket->card_string :
1561 "Empty");
1564 /***********************************************************/
1565 /* machine registration */
1567 static QEMUMachine *first_machine = NULL;
1568 QEMUMachine *current_machine = NULL;
1570 int qemu_register_machine(QEMUMachine *m)
1572 QEMUMachine **pm;
1573 pm = &first_machine;
1574 while (*pm != NULL)
1575 pm = &(*pm)->next;
1576 m->next = NULL;
1577 *pm = m;
1578 return 0;
1581 static QEMUMachine *find_machine(const char *name)
1583 QEMUMachine *m;
1585 for(m = first_machine; m != NULL; m = m->next) {
1586 if (!strcmp(m->name, name))
1587 return m;
1588 if (m->alias && !strcmp(m->alias, name))
1589 return m;
1591 return NULL;
1594 QEMUMachine *find_default_machine(void)
1596 QEMUMachine *m;
1598 for(m = first_machine; m != NULL; m = m->next) {
1599 if (m->is_default) {
1600 return m;
1603 return NULL;
1606 MachineInfoList *qmp_query_machines(Error **errp)
1608 MachineInfoList *mach_list = NULL;
1609 QEMUMachine *m;
1611 for (m = first_machine; m; m = m->next) {
1612 MachineInfoList *entry;
1613 MachineInfo *info;
1615 info = g_malloc0(sizeof(*info));
1616 if (m->is_default) {
1617 info->has_is_default = true;
1618 info->is_default = true;
1621 if (m->alias) {
1622 info->has_alias = true;
1623 info->alias = g_strdup(m->alias);
1626 info->name = g_strdup(m->name);
1627 info->cpu_max = !m->max_cpus ? 1 : m->max_cpus;
1629 entry = g_malloc0(sizeof(*entry));
1630 entry->value = info;
1631 entry->next = mach_list;
1632 mach_list = entry;
1635 return mach_list;
1638 /***********************************************************/
1639 /* main execution loop */
1641 struct vm_change_state_entry {
1642 VMChangeStateHandler *cb;
1643 void *opaque;
1644 QLIST_ENTRY (vm_change_state_entry) entries;
1647 static QLIST_HEAD(vm_change_state_head, vm_change_state_entry) vm_change_state_head;
1649 VMChangeStateEntry *qemu_add_vm_change_state_handler(VMChangeStateHandler *cb,
1650 void *opaque)
1652 VMChangeStateEntry *e;
1654 e = g_malloc0(sizeof (*e));
1656 e->cb = cb;
1657 e->opaque = opaque;
1658 QLIST_INSERT_HEAD(&vm_change_state_head, e, entries);
1659 return e;
1662 void qemu_del_vm_change_state_handler(VMChangeStateEntry *e)
1664 QLIST_REMOVE (e, entries);
1665 g_free (e);
1668 void vm_state_notify(int running, RunState state)
1670 VMChangeStateEntry *e;
1672 trace_vm_state_notify(running, state);
1674 for (e = vm_change_state_head.lh_first; e; e = e->entries.le_next) {
1675 e->cb(e->opaque, running, state);
1679 void vm_start(void)
1681 if (!runstate_is_running()) {
1682 cpu_enable_ticks();
1683 runstate_set(RUN_STATE_RUNNING);
1684 vm_state_notify(1, RUN_STATE_RUNNING);
1685 resume_all_vcpus();
1686 monitor_protocol_event(QEVENT_RESUME, NULL);
1690 /* reset/shutdown handler */
1692 typedef struct QEMUResetEntry {
1693 QTAILQ_ENTRY(QEMUResetEntry) entry;
1694 QEMUResetHandler *func;
1695 void *opaque;
1696 } QEMUResetEntry;
1698 static QTAILQ_HEAD(reset_handlers, QEMUResetEntry) reset_handlers =
1699 QTAILQ_HEAD_INITIALIZER(reset_handlers);
1700 static int reset_requested;
1701 static int shutdown_requested, shutdown_signal = -1;
1702 static pid_t shutdown_pid;
1703 static int powerdown_requested;
1704 static int debug_requested;
1705 static int suspend_requested;
1706 static int wakeup_requested;
1707 static NotifierList powerdown_notifiers =
1708 NOTIFIER_LIST_INITIALIZER(powerdown_notifiers);
1709 static NotifierList suspend_notifiers =
1710 NOTIFIER_LIST_INITIALIZER(suspend_notifiers);
1711 static NotifierList wakeup_notifiers =
1712 NOTIFIER_LIST_INITIALIZER(wakeup_notifiers);
1713 static uint32_t wakeup_reason_mask = ~0;
1714 static RunState vmstop_requested = RUN_STATE_MAX;
1716 int qemu_shutdown_requested_get(void)
1718 return shutdown_requested;
1721 int qemu_reset_requested_get(void)
1723 return reset_requested;
1726 static int qemu_shutdown_requested(void)
1728 int r = shutdown_requested;
1729 shutdown_requested = 0;
1730 return r;
1733 static void qemu_kill_report(void)
1735 if (!qtest_enabled() && shutdown_signal != -1) {
1736 fprintf(stderr, "qemu: terminating on signal %d", shutdown_signal);
1737 if (shutdown_pid == 0) {
1738 /* This happens for eg ^C at the terminal, so it's worth
1739 * avoiding printing an odd message in that case.
1741 fputc('\n', stderr);
1742 } else {
1743 fprintf(stderr, " from pid " FMT_pid "\n", shutdown_pid);
1745 shutdown_signal = -1;
1749 static int qemu_reset_requested(void)
1751 int r = reset_requested;
1752 reset_requested = 0;
1753 return r;
1756 static int qemu_suspend_requested(void)
1758 int r = suspend_requested;
1759 suspend_requested = 0;
1760 return r;
1763 static int qemu_wakeup_requested(void)
1765 int r = wakeup_requested;
1766 wakeup_requested = 0;
1767 return r;
1770 static int qemu_powerdown_requested(void)
1772 int r = powerdown_requested;
1773 powerdown_requested = 0;
1774 return r;
1777 static int qemu_debug_requested(void)
1779 int r = debug_requested;
1780 debug_requested = 0;
1781 return r;
1784 /* We use RUN_STATE_MAX but any invalid value will do */
1785 static bool qemu_vmstop_requested(RunState *r)
1787 if (vmstop_requested < RUN_STATE_MAX) {
1788 *r = vmstop_requested;
1789 vmstop_requested = RUN_STATE_MAX;
1790 return true;
1793 return false;
1796 void qemu_register_reset(QEMUResetHandler *func, void *opaque)
1798 QEMUResetEntry *re = g_malloc0(sizeof(QEMUResetEntry));
1800 re->func = func;
1801 re->opaque = opaque;
1802 QTAILQ_INSERT_TAIL(&reset_handlers, re, entry);
1805 void qemu_unregister_reset(QEMUResetHandler *func, void *opaque)
1807 QEMUResetEntry *re;
1809 QTAILQ_FOREACH(re, &reset_handlers, entry) {
1810 if (re->func == func && re->opaque == opaque) {
1811 QTAILQ_REMOVE(&reset_handlers, re, entry);
1812 g_free(re);
1813 return;
1818 void qemu_devices_reset(void)
1820 QEMUResetEntry *re, *nre;
1822 /* reset all devices */
1823 QTAILQ_FOREACH_SAFE(re, &reset_handlers, entry, nre) {
1824 re->func(re->opaque);
1828 void qemu_system_reset(bool report)
1830 if (current_machine && current_machine->reset) {
1831 current_machine->reset();
1832 } else {
1833 qemu_devices_reset();
1835 if (report) {
1836 monitor_protocol_event(QEVENT_RESET, NULL);
1838 cpu_synchronize_all_post_reset();
1841 void qemu_system_reset_request(void)
1843 if (no_reboot) {
1844 shutdown_requested = 1;
1845 } else {
1846 reset_requested = 1;
1848 cpu_stop_current();
1849 qemu_notify_event();
1852 static void qemu_system_suspend(void)
1854 pause_all_vcpus();
1855 notifier_list_notify(&suspend_notifiers, NULL);
1856 runstate_set(RUN_STATE_SUSPENDED);
1857 monitor_protocol_event(QEVENT_SUSPEND, NULL);
1860 void qemu_system_suspend_request(void)
1862 if (runstate_check(RUN_STATE_SUSPENDED)) {
1863 return;
1865 suspend_requested = 1;
1866 cpu_stop_current();
1867 qemu_notify_event();
1870 void qemu_register_suspend_notifier(Notifier *notifier)
1872 notifier_list_add(&suspend_notifiers, notifier);
1875 void qemu_system_wakeup_request(WakeupReason reason)
1877 if (!runstate_check(RUN_STATE_SUSPENDED)) {
1878 return;
1880 if (!(wakeup_reason_mask & (1 << reason))) {
1881 return;
1883 runstate_set(RUN_STATE_RUNNING);
1884 notifier_list_notify(&wakeup_notifiers, &reason);
1885 wakeup_requested = 1;
1886 qemu_notify_event();
1889 void qemu_system_wakeup_enable(WakeupReason reason, bool enabled)
1891 if (enabled) {
1892 wakeup_reason_mask |= (1 << reason);
1893 } else {
1894 wakeup_reason_mask &= ~(1 << reason);
1898 void qemu_register_wakeup_notifier(Notifier *notifier)
1900 notifier_list_add(&wakeup_notifiers, notifier);
1903 void qemu_system_killed(int signal, pid_t pid)
1905 shutdown_signal = signal;
1906 shutdown_pid = pid;
1907 no_shutdown = 0;
1908 qemu_system_shutdown_request();
1911 void qemu_system_shutdown_request(void)
1913 shutdown_requested = 1;
1914 qemu_notify_event();
1917 static void qemu_system_powerdown(void)
1919 monitor_protocol_event(QEVENT_POWERDOWN, NULL);
1920 notifier_list_notify(&powerdown_notifiers, NULL);
1923 void qemu_system_powerdown_request(void)
1925 powerdown_requested = 1;
1926 qemu_notify_event();
1929 void qemu_register_powerdown_notifier(Notifier *notifier)
1931 notifier_list_add(&powerdown_notifiers, notifier);
1934 void qemu_system_debug_request(void)
1936 debug_requested = 1;
1937 qemu_notify_event();
1940 void qemu_system_vmstop_request(RunState state)
1942 vmstop_requested = state;
1943 qemu_notify_event();
1946 static bool main_loop_should_exit(void)
1948 RunState r;
1949 if (qemu_debug_requested()) {
1950 vm_stop(RUN_STATE_DEBUG);
1952 if (qemu_suspend_requested()) {
1953 qemu_system_suspend();
1955 if (qemu_shutdown_requested()) {
1956 qemu_kill_report();
1957 monitor_protocol_event(QEVENT_SHUTDOWN, NULL);
1958 if (no_shutdown) {
1959 vm_stop(RUN_STATE_SHUTDOWN);
1960 } else {
1961 return true;
1964 if (qemu_reset_requested()) {
1965 pause_all_vcpus();
1966 cpu_synchronize_all_states();
1967 qemu_system_reset(VMRESET_REPORT);
1968 resume_all_vcpus();
1969 if (runstate_check(RUN_STATE_INTERNAL_ERROR) ||
1970 runstate_check(RUN_STATE_SHUTDOWN)) {
1971 runstate_set(RUN_STATE_PAUSED);
1974 if (qemu_wakeup_requested()) {
1975 pause_all_vcpus();
1976 cpu_synchronize_all_states();
1977 qemu_system_reset(VMRESET_SILENT);
1978 resume_all_vcpus();
1979 monitor_protocol_event(QEVENT_WAKEUP, NULL);
1981 if (qemu_powerdown_requested()) {
1982 qemu_system_powerdown();
1984 if (qemu_vmstop_requested(&r)) {
1985 vm_stop(r);
1987 return false;
1990 static void main_loop(void)
1992 bool nonblocking;
1993 int last_io = 0;
1994 #ifdef CONFIG_PROFILER
1995 int64_t ti;
1996 #endif
1997 do {
1998 nonblocking = !kvm_enabled() && last_io > 0;
1999 #ifdef CONFIG_PROFILER
2000 ti = profile_getclock();
2001 #endif
2002 last_io = main_loop_wait(nonblocking);
2003 #ifdef CONFIG_PROFILER
2004 dev_time += profile_getclock() - ti;
2005 #endif
2006 } while (!main_loop_should_exit());
2009 static void version(void)
2011 printf("QEMU emulator version " QEMU_VERSION QEMU_PKGVERSION ", Copyright (c) 2003-2008 Fabrice Bellard\n");
2014 static void help(int exitcode)
2016 version();
2017 printf("usage: %s [options] [disk_image]\n\n"
2018 "'disk_image' is a raw hard disk image for IDE hard disk 0\n\n",
2019 error_get_progname());
2021 #define QEMU_OPTIONS_GENERATE_HELP
2022 #include "qemu-options-wrapper.h"
2024 printf("\nDuring emulation, the following keys are useful:\n"
2025 "ctrl-alt-f toggle full screen\n"
2026 "ctrl-alt-n switch to virtual console 'n'\n"
2027 "ctrl-alt toggle mouse and keyboard grab\n"
2028 "\n"
2029 "When using -nographic, press 'ctrl-a h' to get some help.\n");
2031 exit(exitcode);
2034 #define HAS_ARG 0x0001
2036 typedef struct QEMUOption {
2037 const char *name;
2038 int flags;
2039 int index;
2040 uint32_t arch_mask;
2041 } QEMUOption;
2043 static const QEMUOption qemu_options[] = {
2044 { "h", 0, QEMU_OPTION_h, QEMU_ARCH_ALL },
2045 #define QEMU_OPTIONS_GENERATE_OPTIONS
2046 #include "qemu-options-wrapper.h"
2047 { NULL },
2050 static bool vga_available(void)
2052 return object_class_by_name("VGA") || object_class_by_name("isa-vga");
2055 static bool cirrus_vga_available(void)
2057 return object_class_by_name("cirrus-vga")
2058 || object_class_by_name("isa-cirrus-vga");
2061 static bool vmware_vga_available(void)
2063 return object_class_by_name("vmware-svga");
2066 static bool qxl_vga_available(void)
2068 return object_class_by_name("qxl-vga");
2071 static void select_vgahw (const char *p)
2073 const char *opts;
2075 vga_interface_type = VGA_NONE;
2076 if (strstart(p, "std", &opts)) {
2077 if (vga_available()) {
2078 vga_interface_type = VGA_STD;
2079 } else {
2080 fprintf(stderr, "Error: standard VGA not available\n");
2081 exit(0);
2083 } else if (strstart(p, "cirrus", &opts)) {
2084 if (cirrus_vga_available()) {
2085 vga_interface_type = VGA_CIRRUS;
2086 } else {
2087 fprintf(stderr, "Error: Cirrus VGA not available\n");
2088 exit(0);
2090 } else if (strstart(p, "vmware", &opts)) {
2091 if (vmware_vga_available()) {
2092 vga_interface_type = VGA_VMWARE;
2093 } else {
2094 fprintf(stderr, "Error: VMWare SVGA not available\n");
2095 exit(0);
2097 } else if (strstart(p, "xenfb", &opts)) {
2098 vga_interface_type = VGA_XENFB;
2099 } else if (strstart(p, "qxl", &opts)) {
2100 if (qxl_vga_available()) {
2101 vga_interface_type = VGA_QXL;
2102 } else {
2103 fprintf(stderr, "Error: QXL VGA not available\n");
2104 exit(0);
2106 } else if (!strstart(p, "none", &opts)) {
2107 invalid_vga:
2108 fprintf(stderr, "Unknown vga type: %s\n", p);
2109 exit(1);
2111 while (*opts) {
2112 const char *nextopt;
2114 if (strstart(opts, ",retrace=", &nextopt)) {
2115 opts = nextopt;
2116 if (strstart(opts, "dumb", &nextopt))
2117 vga_retrace_method = VGA_RETRACE_DUMB;
2118 else if (strstart(opts, "precise", &nextopt))
2119 vga_retrace_method = VGA_RETRACE_PRECISE;
2120 else goto invalid_vga;
2121 } else goto invalid_vga;
2122 opts = nextopt;
2126 static DisplayType select_display(const char *p)
2128 const char *opts;
2129 DisplayType display = DT_DEFAULT;
2131 if (strstart(p, "sdl", &opts)) {
2132 #ifdef CONFIG_SDL
2133 display = DT_SDL;
2134 while (*opts) {
2135 const char *nextopt;
2137 if (strstart(opts, ",frame=", &nextopt)) {
2138 opts = nextopt;
2139 if (strstart(opts, "on", &nextopt)) {
2140 no_frame = 0;
2141 } else if (strstart(opts, "off", &nextopt)) {
2142 no_frame = 1;
2143 } else {
2144 goto invalid_sdl_args;
2146 } else if (strstart(opts, ",alt_grab=", &nextopt)) {
2147 opts = nextopt;
2148 if (strstart(opts, "on", &nextopt)) {
2149 alt_grab = 1;
2150 } else if (strstart(opts, "off", &nextopt)) {
2151 alt_grab = 0;
2152 } else {
2153 goto invalid_sdl_args;
2155 } else if (strstart(opts, ",ctrl_grab=", &nextopt)) {
2156 opts = nextopt;
2157 if (strstart(opts, "on", &nextopt)) {
2158 ctrl_grab = 1;
2159 } else if (strstart(opts, "off", &nextopt)) {
2160 ctrl_grab = 0;
2161 } else {
2162 goto invalid_sdl_args;
2164 } else if (strstart(opts, ",window_close=", &nextopt)) {
2165 opts = nextopt;
2166 if (strstart(opts, "on", &nextopt)) {
2167 no_quit = 0;
2168 } else if (strstart(opts, "off", &nextopt)) {
2169 no_quit = 1;
2170 } else {
2171 goto invalid_sdl_args;
2173 } else {
2174 invalid_sdl_args:
2175 fprintf(stderr, "Invalid SDL option string: %s\n", p);
2176 exit(1);
2178 opts = nextopt;
2180 #else
2181 fprintf(stderr, "SDL support is disabled\n");
2182 exit(1);
2183 #endif
2184 } else if (strstart(p, "vnc", &opts)) {
2185 #ifdef CONFIG_VNC
2186 display_remote++;
2188 if (*opts) {
2189 const char *nextopt;
2191 if (strstart(opts, "=", &nextopt)) {
2192 vnc_display = nextopt;
2195 if (!vnc_display) {
2196 fprintf(stderr, "VNC requires a display argument vnc=<display>\n");
2197 exit(1);
2199 #else
2200 fprintf(stderr, "VNC support is disabled\n");
2201 exit(1);
2202 #endif
2203 } else if (strstart(p, "curses", &opts)) {
2204 #ifdef CONFIG_CURSES
2205 display = DT_CURSES;
2206 #else
2207 fprintf(stderr, "Curses support is disabled\n");
2208 exit(1);
2209 #endif
2210 } else if (strstart(p, "gtk", &opts)) {
2211 #ifdef CONFIG_GTK
2212 display = DT_GTK;
2213 #else
2214 fprintf(stderr, "GTK support is disabled\n");
2215 exit(1);
2216 #endif
2217 } else if (strstart(p, "none", &opts)) {
2218 display = DT_NONE;
2219 } else {
2220 fprintf(stderr, "Unknown display type: %s\n", p);
2221 exit(1);
2224 return display;
2227 static int balloon_parse(const char *arg)
2229 QemuOpts *opts;
2231 if (strcmp(arg, "none") == 0) {
2232 return 0;
2235 if (!strncmp(arg, "virtio", 6)) {
2236 if (arg[6] == ',') {
2237 /* have params -> parse them */
2238 opts = qemu_opts_parse(qemu_find_opts("device"), arg+7, 0);
2239 if (!opts)
2240 return -1;
2241 } else {
2242 /* create empty opts */
2243 opts = qemu_opts_create_nofail(qemu_find_opts("device"));
2245 qemu_opt_set(opts, "driver", "virtio-balloon");
2246 return 0;
2249 return -1;
2252 char *qemu_find_file(int type, const char *name)
2254 int i;
2255 const char *subdir;
2256 char *buf;
2258 /* Try the name as a straight path first */
2259 if (access(name, R_OK) == 0) {
2260 trace_load_file(name, name);
2261 return g_strdup(name);
2264 switch (type) {
2265 case QEMU_FILE_TYPE_BIOS:
2266 subdir = "";
2267 break;
2268 case QEMU_FILE_TYPE_KEYMAP:
2269 subdir = "keymaps/";
2270 break;
2271 default:
2272 abort();
2275 for (i = 0; i < data_dir_idx; i++) {
2276 buf = g_strdup_printf("%s/%s%s", data_dir[i], subdir, name);
2277 if (access(buf, R_OK) == 0) {
2278 trace_load_file(name, buf);
2279 return buf;
2281 g_free(buf);
2283 return NULL;
2286 static int device_help_func(QemuOpts *opts, void *opaque)
2288 return qdev_device_help(opts);
2291 static int device_init_func(QemuOpts *opts, void *opaque)
2293 DeviceState *dev;
2295 dev = qdev_device_add(opts);
2296 if (!dev)
2297 return -1;
2298 object_unref(OBJECT(dev));
2299 return 0;
2302 static int chardev_init_func(QemuOpts *opts, void *opaque)
2304 Error *local_err = NULL;
2306 qemu_chr_new_from_opts(opts, NULL, &local_err);
2307 if (error_is_set(&local_err)) {
2308 fprintf(stderr, "%s\n", error_get_pretty(local_err));
2309 error_free(local_err);
2310 return -1;
2312 return 0;
2315 #ifdef CONFIG_VIRTFS
2316 static int fsdev_init_func(QemuOpts *opts, void *opaque)
2318 int ret;
2319 ret = qemu_fsdev_add(opts);
2321 return ret;
2323 #endif
2325 static int mon_init_func(QemuOpts *opts, void *opaque)
2327 CharDriverState *chr;
2328 const char *chardev;
2329 const char *mode;
2330 int flags;
2332 mode = qemu_opt_get(opts, "mode");
2333 if (mode == NULL) {
2334 mode = "readline";
2336 if (strcmp(mode, "readline") == 0) {
2337 flags = MONITOR_USE_READLINE;
2338 } else if (strcmp(mode, "control") == 0) {
2339 flags = MONITOR_USE_CONTROL;
2340 } else {
2341 fprintf(stderr, "unknown monitor mode \"%s\"\n", mode);
2342 exit(1);
2345 if (qemu_opt_get_bool(opts, "pretty", 0))
2346 flags |= MONITOR_USE_PRETTY;
2348 if (qemu_opt_get_bool(opts, "default", 0))
2349 flags |= MONITOR_IS_DEFAULT;
2351 chardev = qemu_opt_get(opts, "chardev");
2352 chr = qemu_chr_find(chardev);
2353 if (chr == NULL) {
2354 fprintf(stderr, "chardev \"%s\" not found\n", chardev);
2355 exit(1);
2358 qemu_chr_fe_claim_no_fail(chr);
2359 monitor_init(chr, flags);
2360 return 0;
2363 static void monitor_parse(const char *optarg, const char *mode)
2365 static int monitor_device_index = 0;
2366 QemuOpts *opts;
2367 const char *p;
2368 char label[32];
2369 int def = 0;
2371 if (strstart(optarg, "chardev:", &p)) {
2372 snprintf(label, sizeof(label), "%s", p);
2373 } else {
2374 snprintf(label, sizeof(label), "compat_monitor%d",
2375 monitor_device_index);
2376 if (monitor_device_index == 0) {
2377 def = 1;
2379 opts = qemu_chr_parse_compat(label, optarg);
2380 if (!opts) {
2381 fprintf(stderr, "parse error: %s\n", optarg);
2382 exit(1);
2386 opts = qemu_opts_create(qemu_find_opts("mon"), label, 1, NULL);
2387 if (!opts) {
2388 fprintf(stderr, "duplicate chardev: %s\n", label);
2389 exit(1);
2391 qemu_opt_set(opts, "mode", mode);
2392 qemu_opt_set(opts, "chardev", label);
2393 if (def)
2394 qemu_opt_set(opts, "default", "on");
2395 monitor_device_index++;
2398 struct device_config {
2399 enum {
2400 DEV_USB, /* -usbdevice */
2401 DEV_BT, /* -bt */
2402 DEV_SERIAL, /* -serial */
2403 DEV_PARALLEL, /* -parallel */
2404 DEV_VIRTCON, /* -virtioconsole */
2405 DEV_DEBUGCON, /* -debugcon */
2406 DEV_GDB, /* -gdb, -s */
2407 DEV_SCLP, /* s390 sclp */
2408 } type;
2409 const char *cmdline;
2410 Location loc;
2411 QTAILQ_ENTRY(device_config) next;
2414 static QTAILQ_HEAD(, device_config) device_configs =
2415 QTAILQ_HEAD_INITIALIZER(device_configs);
2417 static void add_device_config(int type, const char *cmdline)
2419 struct device_config *conf;
2421 conf = g_malloc0(sizeof(*conf));
2422 conf->type = type;
2423 conf->cmdline = cmdline;
2424 loc_save(&conf->loc);
2425 QTAILQ_INSERT_TAIL(&device_configs, conf, next);
2428 static int foreach_device_config(int type, int (*func)(const char *cmdline))
2430 struct device_config *conf;
2431 int rc;
2433 QTAILQ_FOREACH(conf, &device_configs, next) {
2434 if (conf->type != type)
2435 continue;
2436 loc_push_restore(&conf->loc);
2437 rc = func(conf->cmdline);
2438 loc_pop(&conf->loc);
2439 if (0 != rc)
2440 return rc;
2442 return 0;
2445 static int serial_parse(const char *devname)
2447 static int index = 0;
2448 char label[32];
2450 if (strcmp(devname, "none") == 0)
2451 return 0;
2452 if (index == MAX_SERIAL_PORTS) {
2453 fprintf(stderr, "qemu: too many serial ports\n");
2454 exit(1);
2456 snprintf(label, sizeof(label), "serial%d", index);
2457 serial_hds[index] = qemu_chr_new(label, devname, NULL);
2458 if (!serial_hds[index]) {
2459 fprintf(stderr, "qemu: could not connect serial device"
2460 " to character backend '%s'\n", devname);
2461 return -1;
2463 index++;
2464 return 0;
2467 static int parallel_parse(const char *devname)
2469 static int index = 0;
2470 char label[32];
2472 if (strcmp(devname, "none") == 0)
2473 return 0;
2474 if (index == MAX_PARALLEL_PORTS) {
2475 fprintf(stderr, "qemu: too many parallel ports\n");
2476 exit(1);
2478 snprintf(label, sizeof(label), "parallel%d", index);
2479 parallel_hds[index] = qemu_chr_new(label, devname, NULL);
2480 if (!parallel_hds[index]) {
2481 fprintf(stderr, "qemu: could not connect parallel device"
2482 " to character backend '%s'\n", devname);
2483 return -1;
2485 index++;
2486 return 0;
2489 static int virtcon_parse(const char *devname)
2491 QemuOptsList *device = qemu_find_opts("device");
2492 static int index = 0;
2493 char label[32];
2494 QemuOpts *bus_opts, *dev_opts;
2496 if (strcmp(devname, "none") == 0)
2497 return 0;
2498 if (index == MAX_VIRTIO_CONSOLES) {
2499 fprintf(stderr, "qemu: too many virtio consoles\n");
2500 exit(1);
2503 bus_opts = qemu_opts_create_nofail(device);
2504 if (arch_type == QEMU_ARCH_S390X) {
2505 qemu_opt_set(bus_opts, "driver", "virtio-serial-s390");
2506 } else {
2507 qemu_opt_set(bus_opts, "driver", "virtio-serial-pci");
2510 dev_opts = qemu_opts_create_nofail(device);
2511 qemu_opt_set(dev_opts, "driver", "virtconsole");
2513 snprintf(label, sizeof(label), "virtcon%d", index);
2514 virtcon_hds[index] = qemu_chr_new(label, devname, NULL);
2515 if (!virtcon_hds[index]) {
2516 fprintf(stderr, "qemu: could not connect virtio console"
2517 " to character backend '%s'\n", devname);
2518 return -1;
2520 qemu_opt_set(dev_opts, "chardev", label);
2522 index++;
2523 return 0;
2526 static int sclp_parse(const char *devname)
2528 QemuOptsList *device = qemu_find_opts("device");
2529 static int index = 0;
2530 char label[32];
2531 QemuOpts *dev_opts;
2533 if (strcmp(devname, "none") == 0) {
2534 return 0;
2536 if (index == MAX_SCLP_CONSOLES) {
2537 fprintf(stderr, "qemu: too many sclp consoles\n");
2538 exit(1);
2541 assert(arch_type == QEMU_ARCH_S390X);
2543 dev_opts = qemu_opts_create(device, NULL, 0, NULL);
2544 qemu_opt_set(dev_opts, "driver", "sclpconsole");
2546 snprintf(label, sizeof(label), "sclpcon%d", index);
2547 sclp_hds[index] = qemu_chr_new(label, devname, NULL);
2548 if (!sclp_hds[index]) {
2549 fprintf(stderr, "qemu: could not connect sclp console"
2550 " to character backend '%s'\n", devname);
2551 return -1;
2553 qemu_opt_set(dev_opts, "chardev", label);
2555 index++;
2556 return 0;
2559 static int debugcon_parse(const char *devname)
2561 QemuOpts *opts;
2563 if (!qemu_chr_new("debugcon", devname, NULL)) {
2564 exit(1);
2566 opts = qemu_opts_create(qemu_find_opts("device"), "debugcon", 1, NULL);
2567 if (!opts) {
2568 fprintf(stderr, "qemu: already have a debugcon device\n");
2569 exit(1);
2571 qemu_opt_set(opts, "driver", "isa-debugcon");
2572 qemu_opt_set(opts, "chardev", "debugcon");
2573 return 0;
2576 static QEMUMachine *machine_parse(const char *name)
2578 QEMUMachine *m, *machine = NULL;
2580 if (name) {
2581 machine = find_machine(name);
2583 if (machine) {
2584 return machine;
2586 printf("Supported machines are:\n");
2587 for (m = first_machine; m != NULL; m = m->next) {
2588 if (m->alias) {
2589 printf("%-20s %s (alias of %s)\n", m->alias, m->desc, m->name);
2591 printf("%-20s %s%s\n", m->name, m->desc,
2592 m->is_default ? " (default)" : "");
2594 exit(!name || !is_help_option(name));
2597 static int tcg_init(void)
2599 tcg_exec_init(tcg_tb_size * 1024 * 1024);
2600 return 0;
2603 static struct {
2604 const char *opt_name;
2605 const char *name;
2606 int (*available)(void);
2607 int (*init)(void);
2608 bool *allowed;
2609 } accel_list[] = {
2610 { "tcg", "tcg", tcg_available, tcg_init, &tcg_allowed },
2611 { "xen", "Xen", xen_available, xen_init, &xen_allowed },
2612 { "kvm", "KVM", kvm_available, kvm_init, &kvm_allowed },
2613 { "qtest", "QTest", qtest_available, qtest_init, &qtest_allowed },
2616 static int configure_accelerator(void)
2618 const char *p = NULL;
2619 char buf[10];
2620 int i, ret;
2621 bool accel_initialised = false;
2622 bool init_failed = false;
2624 QemuOptsList *list = qemu_find_opts("machine");
2625 if (!QTAILQ_EMPTY(&list->head)) {
2626 p = qemu_opt_get(QTAILQ_FIRST(&list->head), "accel");
2629 if (p == NULL) {
2630 /* Use the default "accelerator", tcg */
2631 p = "tcg";
2634 while (!accel_initialised && *p != '\0') {
2635 if (*p == ':') {
2636 p++;
2638 p = get_opt_name(buf, sizeof (buf), p, ':');
2639 for (i = 0; i < ARRAY_SIZE(accel_list); i++) {
2640 if (strcmp(accel_list[i].opt_name, buf) == 0) {
2641 if (!accel_list[i].available()) {
2642 printf("%s not supported for this target\n",
2643 accel_list[i].name);
2644 continue;
2646 *(accel_list[i].allowed) = true;
2647 ret = accel_list[i].init();
2648 if (ret < 0) {
2649 init_failed = true;
2650 fprintf(stderr, "failed to initialize %s: %s\n",
2651 accel_list[i].name,
2652 strerror(-ret));
2653 *(accel_list[i].allowed) = false;
2654 } else {
2655 accel_initialised = true;
2657 break;
2660 if (i == ARRAY_SIZE(accel_list)) {
2661 fprintf(stderr, "\"%s\" accelerator does not exist.\n", buf);
2665 if (!accel_initialised) {
2666 if (!init_failed) {
2667 fprintf(stderr, "No accelerator found!\n");
2669 exit(1);
2672 if (init_failed) {
2673 fprintf(stderr, "Back to %s accelerator.\n", accel_list[i].name);
2676 return !accel_initialised;
2679 void qemu_add_exit_notifier(Notifier *notify)
2681 notifier_list_add(&exit_notifiers, notify);
2684 void qemu_remove_exit_notifier(Notifier *notify)
2686 notifier_remove(notify);
2689 static void qemu_run_exit_notifiers(void)
2691 notifier_list_notify(&exit_notifiers, NULL);
2694 void qemu_add_machine_init_done_notifier(Notifier *notify)
2696 notifier_list_add(&machine_init_done_notifiers, notify);
2699 static void qemu_run_machine_init_done_notifiers(void)
2701 notifier_list_notify(&machine_init_done_notifiers, NULL);
2704 static const QEMUOption *lookup_opt(int argc, char **argv,
2705 const char **poptarg, int *poptind)
2707 const QEMUOption *popt;
2708 int optind = *poptind;
2709 char *r = argv[optind];
2710 const char *optarg;
2712 loc_set_cmdline(argv, optind, 1);
2713 optind++;
2714 /* Treat --foo the same as -foo. */
2715 if (r[1] == '-')
2716 r++;
2717 popt = qemu_options;
2718 for(;;) {
2719 if (!popt->name) {
2720 error_report("invalid option");
2721 exit(1);
2723 if (!strcmp(popt->name, r + 1))
2724 break;
2725 popt++;
2727 if (popt->flags & HAS_ARG) {
2728 if (optind >= argc) {
2729 error_report("requires an argument");
2730 exit(1);
2732 optarg = argv[optind++];
2733 loc_set_cmdline(argv, optind - 2, 2);
2734 } else {
2735 optarg = NULL;
2738 *poptarg = optarg;
2739 *poptind = optind;
2741 return popt;
2744 static gpointer malloc_and_trace(gsize n_bytes)
2746 void *ptr = malloc(n_bytes);
2747 trace_g_malloc(n_bytes, ptr);
2748 return ptr;
2751 static gpointer realloc_and_trace(gpointer mem, gsize n_bytes)
2753 void *ptr = realloc(mem, n_bytes);
2754 trace_g_realloc(mem, n_bytes, ptr);
2755 return ptr;
2758 static void free_and_trace(gpointer mem)
2760 trace_g_free(mem);
2761 free(mem);
2764 static int object_set_property(const char *name, const char *value, void *opaque)
2766 Object *obj = OBJECT(opaque);
2767 StringInputVisitor *siv;
2768 Error *local_err = NULL;
2770 if (strcmp(name, "qom-type") == 0 || strcmp(name, "id") == 0) {
2771 return 0;
2774 siv = string_input_visitor_new(value);
2775 object_property_set(obj, string_input_get_visitor(siv), name, &local_err);
2776 string_input_visitor_cleanup(siv);
2778 if (local_err) {
2779 qerror_report_err(local_err);
2780 error_free(local_err);
2781 return -1;
2784 return 0;
2787 static int object_create(QemuOpts *opts, void *opaque)
2789 const char *type = qemu_opt_get(opts, "qom-type");
2790 const char *id = qemu_opts_id(opts);
2791 Object *obj;
2793 g_assert(type != NULL);
2795 if (id == NULL) {
2796 qerror_report(QERR_MISSING_PARAMETER, "id");
2797 return -1;
2800 obj = object_new(type);
2801 if (qemu_opt_foreach(opts, object_set_property, obj, 1) < 0) {
2802 return -1;
2805 object_property_add_child(container_get(object_get_root(), "/objects"),
2806 id, obj, NULL);
2808 return 0;
2811 int main(int argc, char **argv, char **envp)
2813 int i;
2814 int snapshot, linux_boot;
2815 const char *icount_option = NULL;
2816 const char *initrd_filename;
2817 const char *kernel_filename, *kernel_cmdline;
2818 char boot_devices[33] = "";
2819 DisplayState *ds;
2820 int cyls, heads, secs, translation;
2821 QemuOpts *hda_opts = NULL, *opts, *machine_opts;
2822 QemuOptsList *olist;
2823 int optind;
2824 const char *optarg;
2825 const char *loadvm = NULL;
2826 QEMUMachine *machine;
2827 const char *cpu_model;
2828 const char *vga_model = "none";
2829 const char *pid_file = NULL;
2830 const char *incoming = NULL;
2831 #ifdef CONFIG_VNC
2832 int show_vnc_port = 0;
2833 #endif
2834 bool defconfig = true;
2835 bool userconfig = true;
2836 const char *log_mask = NULL;
2837 const char *log_file = NULL;
2838 GMemVTable mem_trace = {
2839 .malloc = malloc_and_trace,
2840 .realloc = realloc_and_trace,
2841 .free = free_and_trace,
2843 const char *trace_events = NULL;
2844 const char *trace_file = NULL;
2846 atexit(qemu_run_exit_notifiers);
2847 error_set_progname(argv[0]);
2849 g_mem_set_vtable(&mem_trace);
2850 if (!g_thread_supported()) {
2851 #if !GLIB_CHECK_VERSION(2, 31, 0)
2852 g_thread_init(NULL);
2853 #else
2854 fprintf(stderr, "glib threading failed to initialize.\n");
2855 exit(1);
2856 #endif
2859 module_call_init(MODULE_INIT_QOM);
2861 qemu_add_opts(&qemu_drive_opts);
2862 qemu_add_opts(&qemu_chardev_opts);
2863 qemu_add_opts(&qemu_device_opts);
2864 qemu_add_opts(&qemu_netdev_opts);
2865 qemu_add_opts(&qemu_net_opts);
2866 qemu_add_opts(&qemu_rtc_opts);
2867 qemu_add_opts(&qemu_global_opts);
2868 qemu_add_opts(&qemu_mon_opts);
2869 qemu_add_opts(&qemu_trace_opts);
2870 qemu_add_opts(&qemu_option_rom_opts);
2871 qemu_add_opts(&qemu_machine_opts);
2872 qemu_add_opts(&qemu_boot_opts);
2873 qemu_add_opts(&qemu_sandbox_opts);
2874 qemu_add_opts(&qemu_add_fd_opts);
2875 qemu_add_opts(&qemu_object_opts);
2876 qemu_add_opts(&qemu_tpmdev_opts);
2877 qemu_add_opts(&qemu_realtime_opts);
2879 runstate_init();
2881 init_clocks();
2882 rtc_clock = host_clock;
2884 qemu_cache_utils_init(envp);
2886 QLIST_INIT (&vm_change_state_head);
2887 os_setup_early_signal_handling();
2889 module_call_init(MODULE_INIT_MACHINE);
2890 machine = find_default_machine();
2891 cpu_model = NULL;
2892 ram_size = 0;
2893 snapshot = 0;
2894 cyls = heads = secs = 0;
2895 translation = BIOS_ATA_TRANSLATION_AUTO;
2897 for (i = 0; i < MAX_NODES; i++) {
2898 node_mem[i] = 0;
2899 node_cpumask[i] = bitmap_new(MAX_CPUMASK_BITS);
2902 nb_numa_nodes = 0;
2903 nb_nics = 0;
2905 bdrv_init_with_whitelist();
2907 autostart= 1;
2909 /* first pass of option parsing */
2910 optind = 1;
2911 while (optind < argc) {
2912 if (argv[optind][0] != '-') {
2913 /* disk image */
2914 optind++;
2915 continue;
2916 } else {
2917 const QEMUOption *popt;
2919 popt = lookup_opt(argc, argv, &optarg, &optind);
2920 switch (popt->index) {
2921 case QEMU_OPTION_nodefconfig:
2922 defconfig = false;
2923 break;
2924 case QEMU_OPTION_nouserconfig:
2925 userconfig = false;
2926 break;
2931 if (defconfig) {
2932 int ret;
2933 ret = qemu_read_default_config_files(userconfig);
2934 if (ret < 0) {
2935 exit(1);
2939 /* second pass of option parsing */
2940 optind = 1;
2941 for(;;) {
2942 if (optind >= argc)
2943 break;
2944 if (argv[optind][0] != '-') {
2945 hda_opts = drive_add(IF_DEFAULT, 0, argv[optind++], HD_OPTS);
2946 } else {
2947 const QEMUOption *popt;
2949 popt = lookup_opt(argc, argv, &optarg, &optind);
2950 if (!(popt->arch_mask & arch_type)) {
2951 printf("Option %s not supported for this target\n", popt->name);
2952 exit(1);
2954 switch(popt->index) {
2955 case QEMU_OPTION_M:
2956 machine = machine_parse(optarg);
2957 break;
2958 case QEMU_OPTION_no_kvm_irqchip: {
2959 olist = qemu_find_opts("machine");
2960 qemu_opts_parse(olist, "kernel_irqchip=off", 0);
2961 break;
2963 case QEMU_OPTION_cpu:
2964 /* hw initialization will check this */
2965 cpu_model = optarg;
2966 break;
2967 case QEMU_OPTION_hda:
2969 char buf[256];
2970 if (cyls == 0)
2971 snprintf(buf, sizeof(buf), "%s", HD_OPTS);
2972 else
2973 snprintf(buf, sizeof(buf),
2974 "%s,cyls=%d,heads=%d,secs=%d%s",
2975 HD_OPTS , cyls, heads, secs,
2976 translation == BIOS_ATA_TRANSLATION_LBA ?
2977 ",trans=lba" :
2978 translation == BIOS_ATA_TRANSLATION_NONE ?
2979 ",trans=none" : "");
2980 drive_add(IF_DEFAULT, 0, optarg, buf);
2981 break;
2983 case QEMU_OPTION_hdb:
2984 case QEMU_OPTION_hdc:
2985 case QEMU_OPTION_hdd:
2986 drive_add(IF_DEFAULT, popt->index - QEMU_OPTION_hda, optarg,
2987 HD_OPTS);
2988 break;
2989 case QEMU_OPTION_drive:
2990 if (drive_def(optarg) == NULL) {
2991 exit(1);
2993 break;
2994 case QEMU_OPTION_set:
2995 if (qemu_set_option(optarg) != 0)
2996 exit(1);
2997 break;
2998 case QEMU_OPTION_global:
2999 if (qemu_global_option(optarg) != 0)
3000 exit(1);
3001 break;
3002 case QEMU_OPTION_mtdblock:
3003 drive_add(IF_MTD, -1, optarg, MTD_OPTS);
3004 break;
3005 case QEMU_OPTION_sd:
3006 drive_add(IF_SD, -1, optarg, SD_OPTS);
3007 break;
3008 case QEMU_OPTION_pflash:
3009 drive_add(IF_PFLASH, -1, optarg, PFLASH_OPTS);
3010 break;
3011 case QEMU_OPTION_snapshot:
3012 snapshot = 1;
3013 break;
3014 case QEMU_OPTION_hdachs:
3016 const char *p;
3017 p = optarg;
3018 cyls = strtol(p, (char **)&p, 0);
3019 if (cyls < 1 || cyls > 16383)
3020 goto chs_fail;
3021 if (*p != ',')
3022 goto chs_fail;
3023 p++;
3024 heads = strtol(p, (char **)&p, 0);
3025 if (heads < 1 || heads > 16)
3026 goto chs_fail;
3027 if (*p != ',')
3028 goto chs_fail;
3029 p++;
3030 secs = strtol(p, (char **)&p, 0);
3031 if (secs < 1 || secs > 63)
3032 goto chs_fail;
3033 if (*p == ',') {
3034 p++;
3035 if (!strcmp(p, "none"))
3036 translation = BIOS_ATA_TRANSLATION_NONE;
3037 else if (!strcmp(p, "lba"))
3038 translation = BIOS_ATA_TRANSLATION_LBA;
3039 else if (!strcmp(p, "auto"))
3040 translation = BIOS_ATA_TRANSLATION_AUTO;
3041 else
3042 goto chs_fail;
3043 } else if (*p != '\0') {
3044 chs_fail:
3045 fprintf(stderr, "qemu: invalid physical CHS format\n");
3046 exit(1);
3048 if (hda_opts != NULL) {
3049 char num[16];
3050 snprintf(num, sizeof(num), "%d", cyls);
3051 qemu_opt_set(hda_opts, "cyls", num);
3052 snprintf(num, sizeof(num), "%d", heads);
3053 qemu_opt_set(hda_opts, "heads", num);
3054 snprintf(num, sizeof(num), "%d", secs);
3055 qemu_opt_set(hda_opts, "secs", num);
3056 if (translation == BIOS_ATA_TRANSLATION_LBA)
3057 qemu_opt_set(hda_opts, "trans", "lba");
3058 if (translation == BIOS_ATA_TRANSLATION_NONE)
3059 qemu_opt_set(hda_opts, "trans", "none");
3062 break;
3063 case QEMU_OPTION_numa:
3064 numa_add(optarg);
3065 break;
3066 case QEMU_OPTION_display:
3067 display_type = select_display(optarg);
3068 break;
3069 case QEMU_OPTION_nographic:
3070 display_type = DT_NOGRAPHIC;
3071 break;
3072 case QEMU_OPTION_curses:
3073 #ifdef CONFIG_CURSES
3074 display_type = DT_CURSES;
3075 #else
3076 fprintf(stderr, "Curses support is disabled\n");
3077 exit(1);
3078 #endif
3079 break;
3080 case QEMU_OPTION_portrait:
3081 graphic_rotate = 90;
3082 break;
3083 case QEMU_OPTION_rotate:
3084 graphic_rotate = strtol(optarg, (char **) &optarg, 10);
3085 if (graphic_rotate != 0 && graphic_rotate != 90 &&
3086 graphic_rotate != 180 && graphic_rotate != 270) {
3087 fprintf(stderr,
3088 "qemu: only 90, 180, 270 deg rotation is available\n");
3089 exit(1);
3091 break;
3092 case QEMU_OPTION_kernel:
3093 qemu_opts_set(qemu_find_opts("machine"), 0, "kernel", optarg);
3094 break;
3095 case QEMU_OPTION_initrd:
3096 qemu_opts_set(qemu_find_opts("machine"), 0, "initrd", optarg);
3097 break;
3098 case QEMU_OPTION_append:
3099 qemu_opts_set(qemu_find_opts("machine"), 0, "append", optarg);
3100 break;
3101 case QEMU_OPTION_dtb:
3102 qemu_opts_set(qemu_find_opts("machine"), 0, "dtb", optarg);
3103 break;
3104 case QEMU_OPTION_cdrom:
3105 drive_add(IF_DEFAULT, 2, optarg, CDROM_OPTS);
3106 break;
3107 case QEMU_OPTION_boot:
3109 static const char * const params[] = {
3110 "order", "once", "menu",
3111 "splash", "splash-time",
3112 "reboot-timeout", "strict", NULL
3114 char buf[sizeof(boot_devices)];
3115 char *standard_boot_devices;
3116 int legacy = 0;
3118 if (!strchr(optarg, '=')) {
3119 legacy = 1;
3120 pstrcpy(buf, sizeof(buf), optarg);
3121 } else if (check_params(buf, sizeof(buf), params, optarg) < 0) {
3122 fprintf(stderr,
3123 "qemu: unknown boot parameter '%s' in '%s'\n",
3124 buf, optarg);
3125 exit(1);
3128 if (legacy ||
3129 get_param_value(buf, sizeof(buf), "order", optarg)) {
3130 validate_bootdevices(buf);
3131 pstrcpy(boot_devices, sizeof(boot_devices), buf);
3133 if (!legacy) {
3134 if (get_param_value(buf, sizeof(buf),
3135 "once", optarg)) {
3136 validate_bootdevices(buf);
3137 standard_boot_devices = g_strdup(boot_devices);
3138 pstrcpy(boot_devices, sizeof(boot_devices), buf);
3139 qemu_register_reset(restore_boot_devices,
3140 standard_boot_devices);
3142 if (get_param_value(buf, sizeof(buf),
3143 "menu", optarg)) {
3144 if (!strcmp(buf, "on")) {
3145 boot_menu = 1;
3146 } else if (!strcmp(buf, "off")) {
3147 boot_menu = 0;
3148 } else {
3149 fprintf(stderr,
3150 "qemu: invalid option value '%s'\n",
3151 buf);
3152 exit(1);
3155 if (get_param_value(buf, sizeof(buf),
3156 "strict", optarg)) {
3157 if (!strcmp(buf, "on")) {
3158 boot_strict = true;
3159 } else if (!strcmp(buf, "off")) {
3160 boot_strict = false;
3161 } else {
3162 fprintf(stderr,
3163 "qemu: invalid option value '%s'\n",
3164 buf);
3165 exit(1);
3168 if (!qemu_opts_parse(qemu_find_opts("boot-opts"),
3169 optarg, 0)) {
3170 exit(1);
3174 break;
3175 case QEMU_OPTION_fda:
3176 case QEMU_OPTION_fdb:
3177 drive_add(IF_FLOPPY, popt->index - QEMU_OPTION_fda,
3178 optarg, FD_OPTS);
3179 break;
3180 case QEMU_OPTION_no_fd_bootchk:
3181 fd_bootchk = 0;
3182 break;
3183 case QEMU_OPTION_netdev:
3184 if (net_client_parse(qemu_find_opts("netdev"), optarg) == -1) {
3185 exit(1);
3187 break;
3188 case QEMU_OPTION_net:
3189 if (net_client_parse(qemu_find_opts("net"), optarg) == -1) {
3190 exit(1);
3192 break;
3193 #ifdef CONFIG_LIBISCSI
3194 case QEMU_OPTION_iscsi:
3195 opts = qemu_opts_parse(qemu_find_opts("iscsi"), optarg, 0);
3196 if (!opts) {
3197 exit(1);
3199 break;
3200 #endif
3201 #ifdef CONFIG_SLIRP
3202 case QEMU_OPTION_tftp:
3203 legacy_tftp_prefix = optarg;
3204 break;
3205 case QEMU_OPTION_bootp:
3206 legacy_bootp_filename = optarg;
3207 break;
3208 case QEMU_OPTION_redir:
3209 if (net_slirp_redir(optarg) < 0)
3210 exit(1);
3211 break;
3212 #endif
3213 case QEMU_OPTION_bt:
3214 add_device_config(DEV_BT, optarg);
3215 break;
3216 case QEMU_OPTION_audio_help:
3217 if (!(audio_available())) {
3218 printf("Option %s not supported for this target\n", popt->name);
3219 exit(1);
3221 AUD_help ();
3222 exit (0);
3223 break;
3224 case QEMU_OPTION_soundhw:
3225 if (!(audio_available())) {
3226 printf("Option %s not supported for this target\n", popt->name);
3227 exit(1);
3229 select_soundhw (optarg);
3230 break;
3231 case QEMU_OPTION_h:
3232 help(0);
3233 break;
3234 case QEMU_OPTION_version:
3235 version();
3236 exit(0);
3237 break;
3238 case QEMU_OPTION_m: {
3239 int64_t value;
3240 uint64_t sz;
3241 char *end;
3243 value = strtosz(optarg, &end);
3244 if (value < 0 || *end) {
3245 fprintf(stderr, "qemu: invalid ram size: %s\n", optarg);
3246 exit(1);
3248 sz = QEMU_ALIGN_UP((uint64_t)value, 8192);
3249 ram_size = sz;
3250 if (ram_size != sz) {
3251 fprintf(stderr, "qemu: ram size too large\n");
3252 exit(1);
3254 break;
3256 #ifdef CONFIG_TPM
3257 case QEMU_OPTION_tpmdev:
3258 if (tpm_config_parse(qemu_find_opts("tpmdev"), optarg) < 0) {
3259 exit(1);
3261 break;
3262 #endif
3263 case QEMU_OPTION_mempath:
3264 mem_path = optarg;
3265 break;
3266 #ifdef MAP_POPULATE
3267 case QEMU_OPTION_mem_prealloc:
3268 mem_prealloc = 1;
3269 break;
3270 #endif
3271 case QEMU_OPTION_d:
3272 log_mask = optarg;
3273 break;
3274 case QEMU_OPTION_D:
3275 log_file = optarg;
3276 break;
3277 case QEMU_OPTION_s:
3278 add_device_config(DEV_GDB, "tcp::" DEFAULT_GDBSTUB_PORT);
3279 break;
3280 case QEMU_OPTION_gdb:
3281 add_device_config(DEV_GDB, optarg);
3282 break;
3283 case QEMU_OPTION_L:
3284 if (data_dir_idx < ARRAY_SIZE(data_dir)) {
3285 data_dir[data_dir_idx++] = optarg;
3287 break;
3288 case QEMU_OPTION_bios:
3289 bios_name = optarg;
3290 break;
3291 case QEMU_OPTION_singlestep:
3292 singlestep = 1;
3293 break;
3294 case QEMU_OPTION_S:
3295 autostart = 0;
3296 break;
3297 case QEMU_OPTION_k:
3298 keyboard_layout = optarg;
3299 break;
3300 case QEMU_OPTION_localtime:
3301 rtc_utc = 0;
3302 break;
3303 case QEMU_OPTION_vga:
3304 vga_model = optarg;
3305 default_vga = 0;
3306 break;
3307 case QEMU_OPTION_g:
3309 const char *p;
3310 int w, h, depth;
3311 p = optarg;
3312 w = strtol(p, (char **)&p, 10);
3313 if (w <= 0) {
3314 graphic_error:
3315 fprintf(stderr, "qemu: invalid resolution or depth\n");
3316 exit(1);
3318 if (*p != 'x')
3319 goto graphic_error;
3320 p++;
3321 h = strtol(p, (char **)&p, 10);
3322 if (h <= 0)
3323 goto graphic_error;
3324 if (*p == 'x') {
3325 p++;
3326 depth = strtol(p, (char **)&p, 10);
3327 if (depth != 8 && depth != 15 && depth != 16 &&
3328 depth != 24 && depth != 32)
3329 goto graphic_error;
3330 } else if (*p == '\0') {
3331 depth = graphic_depth;
3332 } else {
3333 goto graphic_error;
3336 graphic_width = w;
3337 graphic_height = h;
3338 graphic_depth = depth;
3340 break;
3341 case QEMU_OPTION_echr:
3343 char *r;
3344 term_escape_char = strtol(optarg, &r, 0);
3345 if (r == optarg)
3346 printf("Bad argument to echr\n");
3347 break;
3349 case QEMU_OPTION_monitor:
3350 monitor_parse(optarg, "readline");
3351 default_monitor = 0;
3352 break;
3353 case QEMU_OPTION_qmp:
3354 monitor_parse(optarg, "control");
3355 default_monitor = 0;
3356 break;
3357 case QEMU_OPTION_mon:
3358 opts = qemu_opts_parse(qemu_find_opts("mon"), optarg, 1);
3359 if (!opts) {
3360 exit(1);
3362 default_monitor = 0;
3363 break;
3364 case QEMU_OPTION_chardev:
3365 opts = qemu_opts_parse(qemu_find_opts("chardev"), optarg, 1);
3366 if (!opts) {
3367 exit(1);
3369 break;
3370 case QEMU_OPTION_fsdev:
3371 olist = qemu_find_opts("fsdev");
3372 if (!olist) {
3373 fprintf(stderr, "fsdev is not supported by this qemu build.\n");
3374 exit(1);
3376 opts = qemu_opts_parse(olist, optarg, 1);
3377 if (!opts) {
3378 exit(1);
3380 break;
3381 case QEMU_OPTION_virtfs: {
3382 QemuOpts *fsdev;
3383 QemuOpts *device;
3384 const char *writeout, *sock_fd, *socket;
3386 olist = qemu_find_opts("virtfs");
3387 if (!olist) {
3388 fprintf(stderr, "virtfs is not supported by this qemu build.\n");
3389 exit(1);
3391 opts = qemu_opts_parse(olist, optarg, 1);
3392 if (!opts) {
3393 exit(1);
3396 if (qemu_opt_get(opts, "fsdriver") == NULL ||
3397 qemu_opt_get(opts, "mount_tag") == NULL) {
3398 fprintf(stderr, "Usage: -virtfs fsdriver,mount_tag=tag.\n");
3399 exit(1);
3401 fsdev = qemu_opts_create(qemu_find_opts("fsdev"),
3402 qemu_opt_get(opts, "mount_tag"),
3403 1, NULL);
3404 if (!fsdev) {
3405 fprintf(stderr, "duplicate fsdev id: %s\n",
3406 qemu_opt_get(opts, "mount_tag"));
3407 exit(1);
3410 writeout = qemu_opt_get(opts, "writeout");
3411 if (writeout) {
3412 #ifdef CONFIG_SYNC_FILE_RANGE
3413 qemu_opt_set(fsdev, "writeout", writeout);
3414 #else
3415 fprintf(stderr, "writeout=immediate not supported on "
3416 "this platform\n");
3417 exit(1);
3418 #endif
3420 qemu_opt_set(fsdev, "fsdriver", qemu_opt_get(opts, "fsdriver"));
3421 qemu_opt_set(fsdev, "path", qemu_opt_get(opts, "path"));
3422 qemu_opt_set(fsdev, "security_model",
3423 qemu_opt_get(opts, "security_model"));
3424 socket = qemu_opt_get(opts, "socket");
3425 if (socket) {
3426 qemu_opt_set(fsdev, "socket", socket);
3428 sock_fd = qemu_opt_get(opts, "sock_fd");
3429 if (sock_fd) {
3430 qemu_opt_set(fsdev, "sock_fd", sock_fd);
3433 qemu_opt_set_bool(fsdev, "readonly",
3434 qemu_opt_get_bool(opts, "readonly", 0));
3435 device = qemu_opts_create_nofail(qemu_find_opts("device"));
3436 qemu_opt_set(device, "driver", "virtio-9p-pci");
3437 qemu_opt_set(device, "fsdev",
3438 qemu_opt_get(opts, "mount_tag"));
3439 qemu_opt_set(device, "mount_tag",
3440 qemu_opt_get(opts, "mount_tag"));
3441 break;
3443 case QEMU_OPTION_virtfs_synth: {
3444 QemuOpts *fsdev;
3445 QemuOpts *device;
3447 fsdev = qemu_opts_create(qemu_find_opts("fsdev"), "v_synth",
3448 1, NULL);
3449 if (!fsdev) {
3450 fprintf(stderr, "duplicate option: %s\n", "virtfs_synth");
3451 exit(1);
3453 qemu_opt_set(fsdev, "fsdriver", "synth");
3455 device = qemu_opts_create_nofail(qemu_find_opts("device"));
3456 qemu_opt_set(device, "driver", "virtio-9p-pci");
3457 qemu_opt_set(device, "fsdev", "v_synth");
3458 qemu_opt_set(device, "mount_tag", "v_synth");
3459 break;
3461 case QEMU_OPTION_serial:
3462 add_device_config(DEV_SERIAL, optarg);
3463 default_serial = 0;
3464 if (strncmp(optarg, "mon:", 4) == 0) {
3465 default_monitor = 0;
3467 break;
3468 case QEMU_OPTION_watchdog:
3469 if (watchdog) {
3470 fprintf(stderr,
3471 "qemu: only one watchdog option may be given\n");
3472 return 1;
3474 watchdog = optarg;
3475 break;
3476 case QEMU_OPTION_watchdog_action:
3477 if (select_watchdog_action(optarg) == -1) {
3478 fprintf(stderr, "Unknown -watchdog-action parameter\n");
3479 exit(1);
3481 break;
3482 case QEMU_OPTION_virtiocon:
3483 add_device_config(DEV_VIRTCON, optarg);
3484 default_virtcon = 0;
3485 if (strncmp(optarg, "mon:", 4) == 0) {
3486 default_monitor = 0;
3488 break;
3489 case QEMU_OPTION_parallel:
3490 add_device_config(DEV_PARALLEL, optarg);
3491 default_parallel = 0;
3492 if (strncmp(optarg, "mon:", 4) == 0) {
3493 default_monitor = 0;
3495 break;
3496 case QEMU_OPTION_debugcon:
3497 add_device_config(DEV_DEBUGCON, optarg);
3498 break;
3499 case QEMU_OPTION_loadvm:
3500 loadvm = optarg;
3501 break;
3502 case QEMU_OPTION_full_screen:
3503 full_screen = 1;
3504 break;
3505 #ifdef CONFIG_SDL
3506 case QEMU_OPTION_no_frame:
3507 no_frame = 1;
3508 break;
3509 case QEMU_OPTION_alt_grab:
3510 alt_grab = 1;
3511 break;
3512 case QEMU_OPTION_ctrl_grab:
3513 ctrl_grab = 1;
3514 break;
3515 case QEMU_OPTION_no_quit:
3516 no_quit = 1;
3517 break;
3518 case QEMU_OPTION_sdl:
3519 display_type = DT_SDL;
3520 break;
3521 #else
3522 case QEMU_OPTION_no_frame:
3523 case QEMU_OPTION_alt_grab:
3524 case QEMU_OPTION_ctrl_grab:
3525 case QEMU_OPTION_no_quit:
3526 case QEMU_OPTION_sdl:
3527 fprintf(stderr, "SDL support is disabled\n");
3528 exit(1);
3529 #endif
3530 case QEMU_OPTION_pidfile:
3531 pid_file = optarg;
3532 break;
3533 case QEMU_OPTION_win2k_hack:
3534 win2k_install_hack = 1;
3535 break;
3536 case QEMU_OPTION_rtc_td_hack: {
3537 static GlobalProperty slew_lost_ticks[] = {
3539 .driver = "mc146818rtc",
3540 .property = "lost_tick_policy",
3541 .value = "slew",
3543 { /* end of list */ }
3546 qdev_prop_register_global_list(slew_lost_ticks);
3547 break;
3549 case QEMU_OPTION_acpitable:
3550 opts = qemu_opts_parse(qemu_find_opts("acpi"), optarg, 1);
3551 g_assert(opts != NULL);
3552 do_acpitable_option(opts);
3553 break;
3554 case QEMU_OPTION_smbios:
3555 do_smbios_option(optarg);
3556 break;
3557 case QEMU_OPTION_enable_kvm:
3558 olist = qemu_find_opts("machine");
3559 qemu_opts_parse(olist, "accel=kvm", 0);
3560 break;
3561 case QEMU_OPTION_machine:
3562 olist = qemu_find_opts("machine");
3563 opts = qemu_opts_parse(olist, optarg, 1);
3564 if (!opts) {
3565 exit(1);
3567 optarg = qemu_opt_get(opts, "type");
3568 if (optarg) {
3569 machine = machine_parse(optarg);
3571 break;
3572 case QEMU_OPTION_no_kvm:
3573 olist = qemu_find_opts("machine");
3574 qemu_opts_parse(olist, "accel=tcg", 0);
3575 break;
3576 case QEMU_OPTION_no_kvm_pit: {
3577 fprintf(stderr, "Warning: KVM PIT can no longer be disabled "
3578 "separately.\n");
3579 break;
3581 case QEMU_OPTION_no_kvm_pit_reinjection: {
3582 static GlobalProperty kvm_pit_lost_tick_policy[] = {
3584 .driver = "kvm-pit",
3585 .property = "lost_tick_policy",
3586 .value = "discard",
3588 { /* end of list */ }
3591 fprintf(stderr, "Warning: option deprecated, use "
3592 "lost_tick_policy property of kvm-pit instead.\n");
3593 qdev_prop_register_global_list(kvm_pit_lost_tick_policy);
3594 break;
3596 case QEMU_OPTION_usb:
3597 olist = qemu_find_opts("machine");
3598 qemu_opts_parse(olist, "usb=on", 0);
3599 break;
3600 case QEMU_OPTION_usbdevice:
3601 olist = qemu_find_opts("machine");
3602 qemu_opts_parse(olist, "usb=on", 0);
3603 add_device_config(DEV_USB, optarg);
3604 break;
3605 case QEMU_OPTION_device:
3606 if (!qemu_opts_parse(qemu_find_opts("device"), optarg, 1)) {
3607 exit(1);
3609 break;
3610 case QEMU_OPTION_smp:
3611 smp_parse(optarg);
3612 if (smp_cpus < 1) {
3613 fprintf(stderr, "Invalid number of CPUs\n");
3614 exit(1);
3616 if (max_cpus < smp_cpus) {
3617 fprintf(stderr, "maxcpus must be equal to or greater than "
3618 "smp\n");
3619 exit(1);
3621 if (max_cpus > 255) {
3622 fprintf(stderr, "Unsupported number of maxcpus\n");
3623 exit(1);
3625 break;
3626 case QEMU_OPTION_vnc:
3627 #ifdef CONFIG_VNC
3628 display_remote++;
3629 vnc_display = optarg;
3630 #else
3631 fprintf(stderr, "VNC support is disabled\n");
3632 exit(1);
3633 #endif
3634 break;
3635 case QEMU_OPTION_no_acpi:
3636 acpi_enabled = 0;
3637 break;
3638 case QEMU_OPTION_no_hpet:
3639 no_hpet = 1;
3640 break;
3641 case QEMU_OPTION_balloon:
3642 if (balloon_parse(optarg) < 0) {
3643 fprintf(stderr, "Unknown -balloon argument %s\n", optarg);
3644 exit(1);
3646 break;
3647 case QEMU_OPTION_no_reboot:
3648 no_reboot = 1;
3649 break;
3650 case QEMU_OPTION_no_shutdown:
3651 no_shutdown = 1;
3652 break;
3653 case QEMU_OPTION_show_cursor:
3654 cursor_hide = 0;
3655 break;
3656 case QEMU_OPTION_uuid:
3657 if(qemu_uuid_parse(optarg, qemu_uuid) < 0) {
3658 fprintf(stderr, "Fail to parse UUID string."
3659 " Wrong format.\n");
3660 exit(1);
3662 break;
3663 case QEMU_OPTION_option_rom:
3664 if (nb_option_roms >= MAX_OPTION_ROMS) {
3665 fprintf(stderr, "Too many option ROMs\n");
3666 exit(1);
3668 opts = qemu_opts_parse(qemu_find_opts("option-rom"), optarg, 1);
3669 if (!opts) {
3670 exit(1);
3672 option_rom[nb_option_roms].name = qemu_opt_get(opts, "romfile");
3673 option_rom[nb_option_roms].bootindex =
3674 qemu_opt_get_number(opts, "bootindex", -1);
3675 if (!option_rom[nb_option_roms].name) {
3676 fprintf(stderr, "Option ROM file is not specified\n");
3677 exit(1);
3679 nb_option_roms++;
3680 break;
3681 case QEMU_OPTION_semihosting:
3682 semihosting_enabled = 1;
3683 break;
3684 case QEMU_OPTION_tdf:
3685 fprintf(stderr, "Warning: user space PIT time drift fix "
3686 "is no longer supported.\n");
3687 break;
3688 case QEMU_OPTION_name:
3689 qemu_name = g_strdup(optarg);
3691 char *p = strchr(qemu_name, ',');
3692 if (p != NULL) {
3693 *p++ = 0;
3694 if (strncmp(p, "process=", 8)) {
3695 fprintf(stderr, "Unknown subargument %s to -name\n", p);
3696 exit(1);
3698 p += 8;
3699 os_set_proc_name(p);
3702 break;
3703 case QEMU_OPTION_prom_env:
3704 if (nb_prom_envs >= MAX_PROM_ENVS) {
3705 fprintf(stderr, "Too many prom variables\n");
3706 exit(1);
3708 prom_envs[nb_prom_envs] = optarg;
3709 nb_prom_envs++;
3710 break;
3711 case QEMU_OPTION_old_param:
3712 old_param = 1;
3713 break;
3714 case QEMU_OPTION_clock:
3715 configure_alarms(optarg);
3716 break;
3717 case QEMU_OPTION_startdate:
3718 configure_rtc_date_offset(optarg, 1);
3719 break;
3720 case QEMU_OPTION_rtc:
3721 opts = qemu_opts_parse(qemu_find_opts("rtc"), optarg, 0);
3722 if (!opts) {
3723 exit(1);
3725 configure_rtc(opts);
3726 break;
3727 case QEMU_OPTION_tb_size:
3728 tcg_tb_size = strtol(optarg, NULL, 0);
3729 if (tcg_tb_size < 0) {
3730 tcg_tb_size = 0;
3732 break;
3733 case QEMU_OPTION_icount:
3734 icount_option = optarg;
3735 break;
3736 case QEMU_OPTION_incoming:
3737 incoming = optarg;
3738 runstate_set(RUN_STATE_INMIGRATE);
3739 break;
3740 case QEMU_OPTION_nodefaults:
3741 default_serial = 0;
3742 default_parallel = 0;
3743 default_virtcon = 0;
3744 default_sclp = 0;
3745 default_monitor = 0;
3746 default_net = 0;
3747 default_floppy = 0;
3748 default_cdrom = 0;
3749 default_sdcard = 0;
3750 default_vga = 0;
3751 break;
3752 case QEMU_OPTION_xen_domid:
3753 if (!(xen_available())) {
3754 printf("Option %s not supported for this target\n", popt->name);
3755 exit(1);
3757 xen_domid = atoi(optarg);
3758 break;
3759 case QEMU_OPTION_xen_create:
3760 if (!(xen_available())) {
3761 printf("Option %s not supported for this target\n", popt->name);
3762 exit(1);
3764 xen_mode = XEN_CREATE;
3765 break;
3766 case QEMU_OPTION_xen_attach:
3767 if (!(xen_available())) {
3768 printf("Option %s not supported for this target\n", popt->name);
3769 exit(1);
3771 xen_mode = XEN_ATTACH;
3772 break;
3773 case QEMU_OPTION_trace:
3775 opts = qemu_opts_parse(qemu_find_opts("trace"), optarg, 0);
3776 if (!opts) {
3777 exit(1);
3779 trace_events = qemu_opt_get(opts, "events");
3780 trace_file = qemu_opt_get(opts, "file");
3781 break;
3783 case QEMU_OPTION_readconfig:
3785 int ret = qemu_read_config_file(optarg);
3786 if (ret < 0) {
3787 fprintf(stderr, "read config %s: %s\n", optarg,
3788 strerror(-ret));
3789 exit(1);
3791 break;
3793 case QEMU_OPTION_spice:
3794 olist = qemu_find_opts("spice");
3795 if (!olist) {
3796 fprintf(stderr, "spice is not supported by this qemu build.\n");
3797 exit(1);
3799 opts = qemu_opts_parse(olist, optarg, 0);
3800 if (!opts) {
3801 exit(1);
3803 display_remote++;
3804 break;
3805 case QEMU_OPTION_writeconfig:
3807 FILE *fp;
3808 if (strcmp(optarg, "-") == 0) {
3809 fp = stdout;
3810 } else {
3811 fp = fopen(optarg, "w");
3812 if (fp == NULL) {
3813 fprintf(stderr, "open %s: %s\n", optarg, strerror(errno));
3814 exit(1);
3817 qemu_config_write(fp);
3818 fclose(fp);
3819 break;
3821 case QEMU_OPTION_qtest:
3822 qtest_chrdev = optarg;
3823 break;
3824 case QEMU_OPTION_qtest_log:
3825 qtest_log = optarg;
3826 break;
3827 case QEMU_OPTION_sandbox:
3828 opts = qemu_opts_parse(qemu_find_opts("sandbox"), optarg, 1);
3829 if (!opts) {
3830 exit(1);
3832 break;
3833 case QEMU_OPTION_add_fd:
3834 #ifndef _WIN32
3835 opts = qemu_opts_parse(qemu_find_opts("add-fd"), optarg, 0);
3836 if (!opts) {
3837 exit(1);
3839 #else
3840 error_report("File descriptor passing is disabled on this "
3841 "platform");
3842 exit(1);
3843 #endif
3844 break;
3845 case QEMU_OPTION_object:
3846 opts = qemu_opts_parse(qemu_find_opts("object"), optarg, 1);
3847 if (!opts) {
3848 exit(1);
3850 break;
3851 case QEMU_OPTION_realtime:
3852 opts = qemu_opts_parse(qemu_find_opts("realtime"), optarg, 0);
3853 if (!opts) {
3854 exit(1);
3856 configure_realtime(opts);
3857 break;
3858 default:
3859 os_parse_cmd_args(popt->index, optarg);
3863 loc_set_none();
3865 if (qemu_init_main_loop()) {
3866 fprintf(stderr, "qemu_init_main_loop failed\n");
3867 exit(1);
3870 if (qemu_opts_foreach(qemu_find_opts("sandbox"), parse_sandbox, NULL, 0)) {
3871 exit(1);
3874 #ifndef _WIN32
3875 if (qemu_opts_foreach(qemu_find_opts("add-fd"), parse_add_fd, NULL, 1)) {
3876 exit(1);
3879 if (qemu_opts_foreach(qemu_find_opts("add-fd"), cleanup_add_fd, NULL, 1)) {
3880 exit(1);
3882 #endif
3884 if (machine == NULL) {
3885 fprintf(stderr, "No machine found.\n");
3886 exit(1);
3889 if (machine->hw_version) {
3890 qemu_set_version(machine->hw_version);
3893 if (qemu_opts_foreach(qemu_find_opts("object"),
3894 object_create, NULL, 0) != 0) {
3895 exit(1);
3898 /* Init CPU def lists, based on config
3899 * - Must be called after all the qemu_read_config_file() calls
3900 * - Must be called before list_cpus()
3901 * - Must be called before machine->init()
3903 cpudef_init();
3905 if (cpu_model && is_help_option(cpu_model)) {
3906 list_cpus(stdout, &fprintf, cpu_model);
3907 exit(0);
3910 /* Open the logfile at this point, if necessary. We can't open the logfile
3911 * when encountering either of the logging options (-d or -D) because the
3912 * other one may be encountered later on the command line, changing the
3913 * location or level of logging.
3915 if (log_mask) {
3916 int mask;
3917 if (log_file) {
3918 qemu_set_log_filename(log_file);
3921 mask = qemu_str_to_log_mask(log_mask);
3922 if (!mask) {
3923 qemu_print_log_usage(stdout);
3924 exit(1);
3926 qemu_set_log(mask);
3929 if (!trace_backend_init(trace_events, trace_file)) {
3930 exit(1);
3933 /* If no data_dir is specified then try to find it relative to the
3934 executable path. */
3935 if (data_dir_idx < ARRAY_SIZE(data_dir)) {
3936 data_dir[data_dir_idx] = os_find_datadir(argv[0]);
3937 if (data_dir[data_dir_idx] != NULL) {
3938 data_dir_idx++;
3941 /* If all else fails use the install path specified when building. */
3942 if (data_dir_idx < ARRAY_SIZE(data_dir)) {
3943 data_dir[data_dir_idx++] = CONFIG_QEMU_DATADIR;
3947 * Default to max_cpus = smp_cpus, in case the user doesn't
3948 * specify a max_cpus value.
3950 if (!max_cpus)
3951 max_cpus = smp_cpus;
3953 machine->max_cpus = machine->max_cpus ?: 1; /* Default to UP */
3954 if (smp_cpus > machine->max_cpus) {
3955 fprintf(stderr, "Number of SMP cpus requested (%d), exceeds max cpus "
3956 "supported by machine `%s' (%d)\n", smp_cpus, machine->name,
3957 machine->max_cpus);
3958 exit(1);
3962 * Get the default machine options from the machine if it is not already
3963 * specified either by the configuration file or by the command line.
3965 if (machine->default_machine_opts) {
3966 qemu_opts_set_defaults(qemu_find_opts("machine"),
3967 machine->default_machine_opts, 0);
3970 qemu_opts_foreach(qemu_find_opts("device"), default_driver_check, NULL, 0);
3971 qemu_opts_foreach(qemu_find_opts("global"), default_driver_check, NULL, 0);
3973 if (machine->no_serial) {
3974 default_serial = 0;
3976 if (machine->no_parallel) {
3977 default_parallel = 0;
3979 if (!machine->use_virtcon) {
3980 default_virtcon = 0;
3982 if (!machine->use_sclp) {
3983 default_sclp = 0;
3985 if (machine->no_floppy) {
3986 default_floppy = 0;
3988 if (machine->no_cdrom) {
3989 default_cdrom = 0;
3991 if (machine->no_sdcard) {
3992 default_sdcard = 0;
3995 if (is_daemonized()) {
3996 /* According to documentation and historically, -nographic redirects
3997 * serial port, parallel port and monitor to stdio, which does not work
3998 * with -daemonize. We can redirect these to null instead, but since
3999 * -nographic is legacy, let's just error out.
4000 * We disallow -nographic only if all other ports are not redirected
4001 * explicitly, to not break existing legacy setups which uses
4002 * -nographic _and_ redirects all ports explicitly - this is valid
4003 * usage, -nographic is just a no-op in this case.
4005 if (display_type == DT_NOGRAPHIC
4006 && (default_parallel || default_serial
4007 || default_monitor || default_virtcon)) {
4008 fprintf(stderr, "-nographic can not be used with -daemonize\n");
4009 exit(1);
4011 #ifdef CONFIG_CURSES
4012 if (display_type == DT_CURSES) {
4013 fprintf(stderr, "curses display can not be used with -daemonize\n");
4014 exit(1);
4016 #endif
4019 if (display_type == DT_NOGRAPHIC) {
4020 if (default_parallel)
4021 add_device_config(DEV_PARALLEL, "null");
4022 if (default_serial && default_monitor) {
4023 add_device_config(DEV_SERIAL, "mon:stdio");
4024 } else if (default_virtcon && default_monitor) {
4025 add_device_config(DEV_VIRTCON, "mon:stdio");
4026 } else if (default_sclp && default_monitor) {
4027 add_device_config(DEV_SCLP, "mon:stdio");
4028 } else {
4029 if (default_serial)
4030 add_device_config(DEV_SERIAL, "stdio");
4031 if (default_virtcon)
4032 add_device_config(DEV_VIRTCON, "stdio");
4033 if (default_sclp) {
4034 add_device_config(DEV_SCLP, "stdio");
4036 if (default_monitor)
4037 monitor_parse("stdio", "readline");
4039 } else {
4040 if (default_serial)
4041 add_device_config(DEV_SERIAL, "vc:80Cx24C");
4042 if (default_parallel)
4043 add_device_config(DEV_PARALLEL, "vc:80Cx24C");
4044 if (default_monitor)
4045 monitor_parse("vc:80Cx24C", "readline");
4046 if (default_virtcon)
4047 add_device_config(DEV_VIRTCON, "vc:80Cx24C");
4048 if (default_sclp) {
4049 add_device_config(DEV_SCLP, "vc:80Cx24C");
4053 if (display_type == DT_DEFAULT && !display_remote) {
4054 #if defined(CONFIG_GTK)
4055 display_type = DT_GTK;
4056 #elif defined(CONFIG_SDL) || defined(CONFIG_COCOA)
4057 display_type = DT_SDL;
4058 #elif defined(CONFIG_VNC)
4059 vnc_display = "localhost:0,to=99";
4060 show_vnc_port = 1;
4061 #else
4062 display_type = DT_NONE;
4063 #endif
4066 #if defined(CONFIG_GTK)
4067 if (display_type == DT_GTK) {
4068 early_gtk_display_init();
4070 #endif
4072 socket_init();
4074 if (qemu_opts_foreach(qemu_find_opts("chardev"), chardev_init_func, NULL, 1) != 0)
4075 exit(1);
4076 #ifdef CONFIG_VIRTFS
4077 if (qemu_opts_foreach(qemu_find_opts("fsdev"), fsdev_init_func, NULL, 1) != 0) {
4078 exit(1);
4080 #endif
4082 os_daemonize();
4084 if (pid_file && qemu_create_pidfile(pid_file) != 0) {
4085 os_pidfile_error();
4086 exit(1);
4089 /* init the memory */
4090 if (ram_size == 0) {
4091 ram_size = DEFAULT_RAM_SIZE * 1024 * 1024;
4094 if (qemu_opts_foreach(qemu_find_opts("device"), device_help_func, NULL, 0)
4095 != 0) {
4096 exit(0);
4099 configure_accelerator();
4101 if (!qtest_enabled() && qtest_chrdev) {
4102 qtest_init();
4105 machine_opts = qemu_opts_find(qemu_find_opts("machine"), 0);
4106 if (machine_opts) {
4107 kernel_filename = qemu_opt_get(machine_opts, "kernel");
4108 initrd_filename = qemu_opt_get(machine_opts, "initrd");
4109 kernel_cmdline = qemu_opt_get(machine_opts, "append");
4110 } else {
4111 kernel_filename = initrd_filename = kernel_cmdline = NULL;
4114 if (!kernel_cmdline) {
4115 kernel_cmdline = "";
4118 linux_boot = (kernel_filename != NULL);
4120 if (!linux_boot && *kernel_cmdline != '\0') {
4121 fprintf(stderr, "-append only allowed with -kernel option\n");
4122 exit(1);
4125 if (!linux_boot && initrd_filename != NULL) {
4126 fprintf(stderr, "-initrd only allowed with -kernel option\n");
4127 exit(1);
4130 if (!linux_boot && machine_opts && qemu_opt_get(machine_opts, "dtb")) {
4131 fprintf(stderr, "-dtb only allowed with -kernel option\n");
4132 exit(1);
4135 os_set_line_buffering();
4137 qemu_init_cpu_loop();
4138 qemu_mutex_lock_iothread();
4140 #ifdef CONFIG_SPICE
4141 /* spice needs the timers to be initialized by this point */
4142 qemu_spice_init();
4143 #endif
4145 if (icount_option && (kvm_enabled() || xen_enabled())) {
4146 fprintf(stderr, "-icount is not allowed with kvm or xen\n");
4147 exit(1);
4149 configure_icount(icount_option);
4151 /* clean up network at qemu process termination */
4152 atexit(&net_cleanup);
4154 if (net_init_clients() < 0) {
4155 exit(1);
4158 #ifdef CONFIG_TPM
4159 if (tpm_init() < 0) {
4160 exit(1);
4162 #endif
4164 /* init the bluetooth world */
4165 if (foreach_device_config(DEV_BT, bt_parse))
4166 exit(1);
4168 if (!xen_enabled()) {
4169 /* On 32-bit hosts, QEMU is limited by virtual address space */
4170 if (ram_size > (2047 << 20) && HOST_LONG_BITS == 32) {
4171 fprintf(stderr, "qemu: at most 2047 MB RAM can be simulated\n");
4172 exit(1);
4176 cpu_exec_init_all();
4178 blk_mig_init();
4180 /* open the virtual block devices */
4181 if (snapshot)
4182 qemu_opts_foreach(qemu_find_opts("drive"), drive_enable_snapshot, NULL, 0);
4183 if (qemu_opts_foreach(qemu_find_opts("drive"), drive_init_func,
4184 &machine->block_default_type, 1) != 0) {
4185 exit(1);
4188 default_drive(default_cdrom, snapshot, machine->block_default_type, 2,
4189 CDROM_OPTS);
4190 default_drive(default_floppy, snapshot, IF_FLOPPY, 0, FD_OPTS);
4191 default_drive(default_sdcard, snapshot, IF_SD, 0, SD_OPTS);
4193 register_savevm_live(NULL, "ram", 0, 4, &savevm_ram_handlers, NULL);
4195 if (nb_numa_nodes > 0) {
4196 int i;
4198 if (nb_numa_nodes > MAX_NODES) {
4199 nb_numa_nodes = MAX_NODES;
4202 /* If no memory size if given for any node, assume the default case
4203 * and distribute the available memory equally across all nodes
4205 for (i = 0; i < nb_numa_nodes; i++) {
4206 if (node_mem[i] != 0)
4207 break;
4209 if (i == nb_numa_nodes) {
4210 uint64_t usedmem = 0;
4212 /* On Linux, the each node's border has to be 8MB aligned,
4213 * the final node gets the rest.
4215 for (i = 0; i < nb_numa_nodes - 1; i++) {
4216 node_mem[i] = (ram_size / nb_numa_nodes) & ~((1 << 23UL) - 1);
4217 usedmem += node_mem[i];
4219 node_mem[i] = ram_size - usedmem;
4222 for (i = 0; i < nb_numa_nodes; i++) {
4223 if (!bitmap_empty(node_cpumask[i], MAX_CPUMASK_BITS)) {
4224 break;
4227 /* assigning the VCPUs round-robin is easier to implement, guest OSes
4228 * must cope with this anyway, because there are BIOSes out there in
4229 * real machines which also use this scheme.
4231 if (i == nb_numa_nodes) {
4232 for (i = 0; i < max_cpus; i++) {
4233 set_bit(i, node_cpumask[i % nb_numa_nodes]);
4238 if (qemu_opts_foreach(qemu_find_opts("mon"), mon_init_func, NULL, 1) != 0) {
4239 exit(1);
4242 if (foreach_device_config(DEV_SERIAL, serial_parse) < 0)
4243 exit(1);
4244 if (foreach_device_config(DEV_PARALLEL, parallel_parse) < 0)
4245 exit(1);
4246 if (foreach_device_config(DEV_VIRTCON, virtcon_parse) < 0)
4247 exit(1);
4248 if (foreach_device_config(DEV_SCLP, sclp_parse) < 0) {
4249 exit(1);
4251 if (foreach_device_config(DEV_DEBUGCON, debugcon_parse) < 0)
4252 exit(1);
4254 /* If no default VGA is requested, the default is "none". */
4255 if (default_vga) {
4256 if (cirrus_vga_available()) {
4257 vga_model = "cirrus";
4258 } else if (vga_available()) {
4259 vga_model = "std";
4262 select_vgahw(vga_model);
4264 if (watchdog) {
4265 i = select_watchdog(watchdog);
4266 if (i > 0)
4267 exit (i == 1 ? 1 : 0);
4270 if (machine->compat_props) {
4271 qdev_prop_register_global_list(machine->compat_props);
4273 qemu_add_globals();
4275 qdev_machine_init();
4277 QEMUMachineInitArgs args = { .ram_size = ram_size,
4278 .boot_device = (boot_devices[0] == '\0') ?
4279 machine->boot_order :
4280 boot_devices,
4281 .kernel_filename = kernel_filename,
4282 .kernel_cmdline = kernel_cmdline,
4283 .initrd_filename = initrd_filename,
4284 .cpu_model = cpu_model };
4285 machine->init(&args);
4287 cpu_synchronize_all_post_init();
4289 set_numa_modes();
4291 current_machine = machine;
4293 /* init USB devices */
4294 if (usb_enabled(false)) {
4295 if (foreach_device_config(DEV_USB, usb_parse) < 0)
4296 exit(1);
4299 /* init generic devices */
4300 if (qemu_opts_foreach(qemu_find_opts("device"), device_init_func, NULL, 1) != 0)
4301 exit(1);
4303 net_check_clients();
4305 ds = init_displaystate();
4307 /* init local displays */
4308 switch (display_type) {
4309 case DT_NOGRAPHIC:
4310 break;
4311 #if defined(CONFIG_CURSES)
4312 case DT_CURSES:
4313 curses_display_init(ds, full_screen);
4314 break;
4315 #endif
4316 #if defined(CONFIG_SDL)
4317 case DT_SDL:
4318 sdl_display_init(ds, full_screen, no_frame);
4319 break;
4320 #elif defined(CONFIG_COCOA)
4321 case DT_SDL:
4322 cocoa_display_init(ds, full_screen);
4323 break;
4324 #endif
4325 #if defined(CONFIG_GTK)
4326 case DT_GTK:
4327 gtk_display_init(ds);
4328 break;
4329 #endif
4330 default:
4331 break;
4334 /* must be after terminal init, SDL library changes signal handlers */
4335 os_setup_signal_handling();
4337 #ifdef CONFIG_VNC
4338 /* init remote displays */
4339 if (vnc_display) {
4340 Error *local_err = NULL;
4341 vnc_display_init(ds);
4342 vnc_display_open(ds, vnc_display, &local_err);
4343 if (local_err != NULL) {
4344 fprintf(stderr, "Failed to start VNC server on `%s': %s\n",
4345 vnc_display, error_get_pretty(local_err));
4346 error_free(local_err);
4347 exit(1);
4350 if (show_vnc_port) {
4351 printf("VNC server running on `%s'\n", vnc_display_local_addr(ds));
4354 #endif
4355 #ifdef CONFIG_SPICE
4356 if (using_spice && !qxl_enabled) {
4357 qemu_spice_display_init(ds);
4359 #endif
4361 if (foreach_device_config(DEV_GDB, gdbserver_start) < 0) {
4362 exit(1);
4365 qdev_machine_creation_done();
4367 if (rom_load_all() != 0) {
4368 fprintf(stderr, "rom loading failed\n");
4369 exit(1);
4372 /* TODO: once all bus devices are qdevified, this should be done
4373 * when bus is created by qdev.c */
4374 qemu_register_reset(qbus_reset_all_fn, sysbus_get_default());
4375 qemu_run_machine_init_done_notifiers();
4377 qemu_system_reset(VMRESET_SILENT);
4378 if (loadvm) {
4379 if (load_vmstate(loadvm) < 0) {
4380 autostart = 0;
4384 if (incoming) {
4385 Error *local_err = NULL;
4386 qemu_start_incoming_migration(incoming, &local_err);
4387 if (local_err) {
4388 fprintf(stderr, "-incoming %s: %s\n", incoming, error_get_pretty(local_err));
4389 error_free(local_err);
4390 exit(1);
4392 } else if (autostart) {
4393 vm_start();
4396 os_setup_post();
4398 resume_all_vcpus();
4399 main_loop();
4400 bdrv_close_all();
4401 pause_all_vcpus();
4402 res_free();
4403 #ifdef CONFIG_TPM
4404 tpm_cleanup();
4405 #endif
4407 return 0;