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
32 /* Needed early for CONFIG_BSD etc. */
33 #include "config-host.h"
37 #include <sys/times.h>
41 #include <sys/ioctl.h>
42 #include <sys/resource.h>
43 #include <sys/socket.h>
44 #include <netinet/in.h>
46 #include <arpa/inet.h>
49 #include <sys/select.h>
53 #if defined(__FreeBSD__) || defined(__FreeBSD_kernel__) || defined(__DragonFly__)
55 #include <sys/sysctl.h>
64 #include <linux/ppdev.h>
65 #include <linux/parport.h>
69 #include <sys/ethernet.h>
70 #include <sys/sockio.h>
71 #include <netinet/arp.h>
72 #include <netinet/in_systm.h>
73 #include <netinet/ip.h>
74 #include <netinet/ip_icmp.h> // must come after ip.h
75 #include <netinet/udp.h>
76 #include <netinet/tcp.h>
84 #if defined(__OpenBSD__)
88 #if defined(CONFIG_VDE)
89 #include <libvdeplug.h>
97 #if defined(__APPLE__) || defined(main)
99 int qemu_main(int argc, char **argv, char **envp);
100 int main(int argc, char **argv)
102 return qemu_main(argc, argv, NULL);
105 #define main qemu_main
107 #endif /* CONFIG_SDL */
111 #define main qemu_main
112 #endif /* CONFIG_COCOA */
117 #include "hw/boards.h"
119 #include "hw/pcmcia.h"
124 #include "hw/watchdog.h"
125 #include "hw/smbios.h"
128 #include "hw/loader.h"
131 #include "net/slirp.h"
136 #include "qemu-timer.h"
137 #include "qemu-char.h"
138 #include "cache-utils.h"
140 #include "blockdev.h"
141 #include "block-migration.h"
143 #include "audio/audio.h"
144 #include "migration.h"
147 #include "qemu-option.h"
148 #include "qemu-config.h"
149 #include "qemu-options.h"
150 #include "qmp-commands.h"
151 #include "main-loop.h"
153 #include "fsdev/qemu-fsdev.h"
158 #include "qemu_socket.h"
160 #include "slirp/libslirp.h"
163 #include "trace/control.h"
164 #include "qemu-queue.h"
166 #include "arch_init.h"
168 #include "ui/qemu-spice.h"
171 //#define DEBUG_SLIRP
173 #define DEFAULT_RAM_SIZE 128
175 #define MAX_VIRTIO_CONSOLES 1
177 static const char *data_dir;
178 const char *bios_name = NULL;
179 enum vga_retrace_method vga_retrace_method = VGA_RETRACE_DUMB;
180 DisplayType display_type = DT_DEFAULT;
181 int display_remote = 0;
182 const char* keyboard_layout = NULL;
184 const char *mem_path = NULL;
186 int mem_prealloc = 0; /* force preallocation of physical target memory */
189 NICInfo nd_table[MAX_NICS];
191 static int rtc_utc = 1;
192 static int rtc_date_offset = -1; /* -1 means no change */
193 QEMUClock *rtc_clock;
194 int vga_interface_type = VGA_NONE;
195 static int full_screen = 0;
197 static int no_frame = 0;
200 CharDriverState *serial_hds[MAX_SERIAL_PORTS];
201 CharDriverState *parallel_hds[MAX_PARALLEL_PORTS];
202 CharDriverState *virtcon_hds[MAX_VIRTIO_CONSOLES];
203 int win2k_install_hack = 0;
212 const char *vnc_display;
214 int acpi_enabled = 1;
220 int graphic_rotate = 0;
221 uint8_t irq0override = 1;
222 const char *watchdog;
223 QEMUOptionRom option_rom[MAX_OPTION_ROMS];
225 int semihosting_enabled = 0;
227 const char *qemu_name;
230 unsigned int nb_prom_envs = 0;
231 const char *prom_envs[MAX_PROM_ENVS];
233 uint8_t *boot_splash_filedata;
234 int boot_splash_filedata_size;
235 uint8_t qemu_extra_params_fw[2];
237 typedef struct FWBootEntry FWBootEntry;
240 QTAILQ_ENTRY(FWBootEntry) link;
246 QTAILQ_HEAD(, FWBootEntry) fw_boot_order = QTAILQ_HEAD_INITIALIZER(fw_boot_order);
249 uint64_t node_mem[MAX_NODES];
250 uint64_t node_cpumask[MAX_NODES];
252 uint8_t qemu_uuid[16];
254 static QEMUBootSetHandler *boot_set_handler;
255 static void *boot_set_opaque;
257 static NotifierList exit_notifiers =
258 NOTIFIER_LIST_INITIALIZER(exit_notifiers);
260 static NotifierList machine_init_done_notifiers =
261 NOTIFIER_LIST_INITIALIZER(machine_init_done_notifiers);
263 static int tcg_allowed = 1;
267 enum xen_mode xen_mode = XEN_EMULATE;
268 static int tcg_tb_size;
270 static int default_serial = 1;
271 static int default_parallel = 1;
272 static int default_virtcon = 1;
273 static int default_monitor = 1;
274 static int default_vga = 1;
275 static int default_floppy = 1;
276 static int default_cdrom = 1;
277 static int default_sdcard = 1;
283 { .driver = "isa-serial", .flag = &default_serial },
284 { .driver = "isa-parallel", .flag = &default_parallel },
285 { .driver = "isa-fdc", .flag = &default_floppy },
286 { .driver = "ide-cd", .flag = &default_cdrom },
287 { .driver = "ide-hd", .flag = &default_cdrom },
288 { .driver = "ide-drive", .flag = &default_cdrom },
289 { .driver = "scsi-cd", .flag = &default_cdrom },
290 { .driver = "virtio-serial-pci", .flag = &default_virtcon },
291 { .driver = "virtio-serial-s390", .flag = &default_virtcon },
292 { .driver = "virtio-serial", .flag = &default_virtcon },
293 { .driver = "VGA", .flag = &default_vga },
294 { .driver = "cirrus-vga", .flag = &default_vga },
295 { .driver = "vmware-svga", .flag = &default_vga },
296 { .driver = "isa-vga", .flag = &default_vga },
297 { .driver = "qxl-vga", .flag = &default_vga },
300 static void res_free(void)
302 if (boot_splash_filedata != NULL) {
303 g_free(boot_splash_filedata);
304 boot_splash_filedata = NULL;
308 static int default_driver_check(QemuOpts *opts, void *opaque)
310 const char *driver = qemu_opt_get(opts, "driver");
315 for (i = 0; i < ARRAY_SIZE(default_list); i++) {
316 if (strcmp(default_list[i].driver, driver) != 0)
318 *(default_list[i].flag) = 0;
323 /***********************************************************/
326 static RunState current_run_state = RUN_STATE_PRELAUNCH;
331 } RunStateTransition;
333 static const RunStateTransition runstate_transitions_def[] = {
335 { RUN_STATE_DEBUG, RUN_STATE_RUNNING },
337 { RUN_STATE_INMIGRATE, RUN_STATE_RUNNING },
338 { RUN_STATE_INMIGRATE, RUN_STATE_PRELAUNCH },
340 { RUN_STATE_INTERNAL_ERROR, RUN_STATE_PAUSED },
341 { RUN_STATE_INTERNAL_ERROR, RUN_STATE_FINISH_MIGRATE },
343 { RUN_STATE_IO_ERROR, RUN_STATE_RUNNING },
344 { RUN_STATE_IO_ERROR, RUN_STATE_FINISH_MIGRATE },
346 { RUN_STATE_PAUSED, RUN_STATE_RUNNING },
347 { RUN_STATE_PAUSED, RUN_STATE_FINISH_MIGRATE },
349 { RUN_STATE_POSTMIGRATE, RUN_STATE_RUNNING },
350 { RUN_STATE_POSTMIGRATE, RUN_STATE_FINISH_MIGRATE },
352 { RUN_STATE_PRELAUNCH, RUN_STATE_RUNNING },
353 { RUN_STATE_PRELAUNCH, RUN_STATE_FINISH_MIGRATE },
354 { RUN_STATE_PRELAUNCH, RUN_STATE_INMIGRATE },
356 { RUN_STATE_FINISH_MIGRATE, RUN_STATE_RUNNING },
357 { RUN_STATE_FINISH_MIGRATE, RUN_STATE_POSTMIGRATE },
359 { RUN_STATE_RESTORE_VM, RUN_STATE_RUNNING },
361 { RUN_STATE_RUNNING, RUN_STATE_DEBUG },
362 { RUN_STATE_RUNNING, RUN_STATE_INTERNAL_ERROR },
363 { RUN_STATE_RUNNING, RUN_STATE_IO_ERROR },
364 { RUN_STATE_RUNNING, RUN_STATE_PAUSED },
365 { RUN_STATE_RUNNING, RUN_STATE_FINISH_MIGRATE },
366 { RUN_STATE_RUNNING, RUN_STATE_RESTORE_VM },
367 { RUN_STATE_RUNNING, RUN_STATE_SAVE_VM },
368 { RUN_STATE_RUNNING, RUN_STATE_SHUTDOWN },
369 { RUN_STATE_RUNNING, RUN_STATE_WATCHDOG },
371 { RUN_STATE_SAVE_VM, RUN_STATE_RUNNING },
373 { RUN_STATE_SHUTDOWN, RUN_STATE_PAUSED },
374 { RUN_STATE_SHUTDOWN, RUN_STATE_FINISH_MIGRATE },
376 { RUN_STATE_WATCHDOG, RUN_STATE_RUNNING },
377 { RUN_STATE_WATCHDOG, RUN_STATE_FINISH_MIGRATE },
379 { RUN_STATE_MAX, RUN_STATE_MAX },
382 static bool runstate_valid_transitions[RUN_STATE_MAX][RUN_STATE_MAX];
384 bool runstate_check(RunState state)
386 return current_run_state == state;
389 void runstate_init(void)
391 const RunStateTransition *p;
393 memset(&runstate_valid_transitions, 0, sizeof(runstate_valid_transitions));
395 for (p = &runstate_transitions_def[0]; p->from != RUN_STATE_MAX; p++) {
396 runstate_valid_transitions[p->from][p->to] = true;
400 /* This function will abort() on invalid state transitions */
401 void runstate_set(RunState new_state)
403 assert(new_state < RUN_STATE_MAX);
405 if (!runstate_valid_transitions[current_run_state][new_state]) {
406 fprintf(stderr, "ERROR: invalid runstate transition: '%s' -> '%s'\n",
407 RunState_lookup[current_run_state],
408 RunState_lookup[new_state]);
412 current_run_state = new_state;
415 int runstate_is_running(void)
417 return runstate_check(RUN_STATE_RUNNING);
420 StatusInfo *qmp_query_status(Error **errp)
422 StatusInfo *info = g_malloc0(sizeof(*info));
424 info->running = runstate_is_running();
425 info->singlestep = singlestep;
426 info->status = current_run_state;
431 /***********************************************************/
432 /* real time host monotonic timer */
434 /***********************************************************/
435 /* host time/date access */
436 void qemu_get_timedate(struct tm *tm, int offset)
443 if (rtc_date_offset == -1) {
447 ret = localtime(&ti);
449 ti -= rtc_date_offset;
453 memcpy(tm, ret, sizeof(struct tm));
456 int qemu_timedate_diff(struct tm *tm)
460 if (rtc_date_offset == -1)
462 seconds = mktimegm(tm);
464 seconds = mktime(tm);
466 seconds = mktimegm(tm) + rtc_date_offset;
468 return seconds - time(NULL);
471 void rtc_change_mon_event(struct tm *tm)
475 data = qobject_from_jsonf("{ 'offset': %d }", qemu_timedate_diff(tm));
476 monitor_protocol_event(QEVENT_RTC_CHANGE, data);
477 qobject_decref(data);
480 static void configure_rtc_date_offset(const char *startdate, int legacy)
482 time_t rtc_start_date;
485 if (!strcmp(startdate, "now") && legacy) {
486 rtc_date_offset = -1;
488 if (sscanf(startdate, "%d-%d-%dT%d:%d:%d",
496 } else if (sscanf(startdate, "%d-%d-%d",
508 rtc_start_date = mktimegm(&tm);
509 if (rtc_start_date == -1) {
511 fprintf(stderr, "Invalid date format. Valid formats are:\n"
512 "'2006-06-17T16:01:21' or '2006-06-17'\n");
515 rtc_date_offset = time(NULL) - rtc_start_date;
519 static void configure_rtc(QemuOpts *opts)
523 value = qemu_opt_get(opts, "base");
525 if (!strcmp(value, "utc")) {
527 } else if (!strcmp(value, "localtime")) {
530 configure_rtc_date_offset(value, 0);
533 value = qemu_opt_get(opts, "clock");
535 if (!strcmp(value, "host")) {
536 rtc_clock = host_clock;
537 } else if (!strcmp(value, "vm")) {
538 rtc_clock = vm_clock;
540 fprintf(stderr, "qemu: invalid option value '%s'\n", value);
544 value = qemu_opt_get(opts, "driftfix");
546 if (!strcmp(value, "slew")) {
548 } else if (!strcmp(value, "none")) {
551 fprintf(stderr, "qemu: invalid option value '%s'\n", value);
557 /***********************************************************/
558 /* Bluetooth support */
561 static struct HCIInfo *hci_table[MAX_NICS];
563 static struct bt_vlan_s {
564 struct bt_scatternet_s net;
566 struct bt_vlan_s *next;
569 /* find or alloc a new bluetooth "VLAN" */
570 static struct bt_scatternet_s *qemu_find_bt_vlan(int id)
572 struct bt_vlan_s **pvlan, *vlan;
573 for (vlan = first_bt_vlan; vlan != NULL; vlan = vlan->next) {
577 vlan = g_malloc0(sizeof(struct bt_vlan_s));
579 pvlan = &first_bt_vlan;
580 while (*pvlan != NULL)
581 pvlan = &(*pvlan)->next;
586 static void null_hci_send(struct HCIInfo *hci, const uint8_t *data, int len)
590 static int null_hci_addr_set(struct HCIInfo *hci, const uint8_t *bd_addr)
595 static struct HCIInfo null_hci = {
596 .cmd_send = null_hci_send,
597 .sco_send = null_hci_send,
598 .acl_send = null_hci_send,
599 .bdaddr_set = null_hci_addr_set,
602 struct HCIInfo *qemu_next_hci(void)
604 if (cur_hci == nb_hcis)
607 return hci_table[cur_hci++];
610 static struct HCIInfo *hci_init(const char *str)
613 struct bt_scatternet_s *vlan = 0;
615 if (!strcmp(str, "null"))
618 else if (!strncmp(str, "host", 4) && (str[4] == '\0' || str[4] == ':'))
620 return bt_host_hci(str[4] ? str + 5 : "hci0");
621 else if (!strncmp(str, "hci", 3)) {
624 if (!strncmp(str + 3, ",vlan=", 6)) {
625 vlan = qemu_find_bt_vlan(strtol(str + 9, &endp, 0));
630 vlan = qemu_find_bt_vlan(0);
632 return bt_new_hci(vlan);
635 fprintf(stderr, "qemu: Unknown bluetooth HCI `%s'.\n", str);
640 static int bt_hci_parse(const char *str)
645 if (nb_hcis >= MAX_NICS) {
646 fprintf(stderr, "qemu: Too many bluetooth HCIs (max %i).\n", MAX_NICS);
659 bdaddr.b[5] = 0x56 + nb_hcis;
660 hci->bdaddr_set(hci, bdaddr.b);
662 hci_table[nb_hcis++] = hci;
667 static void bt_vhci_add(int vlan_id)
669 struct bt_scatternet_s *vlan = qemu_find_bt_vlan(vlan_id);
672 fprintf(stderr, "qemu: warning: adding a VHCI to "
673 "an empty scatternet %i\n", vlan_id);
675 bt_vhci_init(bt_new_hci(vlan));
678 static struct bt_device_s *bt_device_add(const char *opt)
680 struct bt_scatternet_s *vlan;
682 char *endp = strstr(opt, ",vlan=");
683 int len = (endp ? endp - opt : strlen(opt)) + 1;
686 pstrcpy(devname, MIN(sizeof(devname), len), opt);
689 vlan_id = strtol(endp + 6, &endp, 0);
691 fprintf(stderr, "qemu: unrecognised bluetooth vlan Id\n");
696 vlan = qemu_find_bt_vlan(vlan_id);
699 fprintf(stderr, "qemu: warning: adding a slave device to "
700 "an empty scatternet %i\n", vlan_id);
702 if (!strcmp(devname, "keyboard"))
703 return bt_keyboard_init(vlan);
705 fprintf(stderr, "qemu: unsupported bluetooth device `%s'\n", devname);
709 static int bt_parse(const char *opt)
711 const char *endp, *p;
714 if (strstart(opt, "hci", &endp)) {
715 if (!*endp || *endp == ',') {
717 if (!strstart(endp, ",vlan=", 0))
720 return bt_hci_parse(opt);
722 } else if (strstart(opt, "vhci", &endp)) {
723 if (!*endp || *endp == ',') {
725 if (strstart(endp, ",vlan=", &p)) {
726 vlan = strtol(p, (char **) &endp, 0);
728 fprintf(stderr, "qemu: bad scatternet '%s'\n", p);
732 fprintf(stderr, "qemu: bad parameter '%s'\n", endp + 1);
741 } else if (strstart(opt, "device:", &endp))
742 return !bt_device_add(endp);
744 fprintf(stderr, "qemu: bad bluetooth parameter '%s'\n", opt);
748 /***********************************************************/
749 /* QEMU Block devices */
751 #define HD_OPTS "media=disk"
752 #define CDROM_OPTS "media=cdrom"
754 #define PFLASH_OPTS ""
758 static int drive_init_func(QemuOpts *opts, void *opaque)
760 int *use_scsi = opaque;
762 return drive_init(opts, *use_scsi) == NULL;
765 static int drive_enable_snapshot(QemuOpts *opts, void *opaque)
767 if (NULL == qemu_opt_get(opts, "snapshot")) {
768 qemu_opt_set(opts, "snapshot", "on");
773 static void default_drive(int enable, int snapshot, int use_scsi,
774 BlockInterfaceType type, int index,
779 if (type == IF_DEFAULT) {
780 type = use_scsi ? IF_SCSI : IF_IDE;
783 if (!enable || drive_get_by_index(type, index)) {
787 opts = drive_add(type, index, NULL, optstr);
789 drive_enable_snapshot(opts, NULL);
791 if (!drive_init(opts, use_scsi)) {
796 void qemu_register_boot_set(QEMUBootSetHandler *func, void *opaque)
798 boot_set_handler = func;
799 boot_set_opaque = opaque;
802 int qemu_boot_set(const char *boot_devices)
804 if (!boot_set_handler) {
807 return boot_set_handler(boot_set_opaque, boot_devices);
810 static void validate_bootdevices(char *devices)
812 /* We just do some generic consistency checks */
816 for (p = devices; *p != '\0'; p++) {
817 /* Allowed boot devices are:
818 * a-b: floppy disk drives
819 * c-f: IDE disk drives
820 * g-m: machine implementation dependant drives
821 * n-p: network devices
822 * It's up to each machine implementation to check if the given boot
823 * devices match the actual hardware implementation and firmware
826 if (*p < 'a' || *p > 'p') {
827 fprintf(stderr, "Invalid boot device '%c'\n", *p);
830 if (bitmap & (1 << (*p - 'a'))) {
831 fprintf(stderr, "Boot device '%c' was given twice\n", *p);
834 bitmap |= 1 << (*p - 'a');
838 static void restore_boot_devices(void *opaque)
840 char *standard_boot_devices = opaque;
841 static int first = 1;
843 /* Restore boot order and remove ourselves after the first boot */
849 qemu_boot_set(standard_boot_devices);
851 qemu_unregister_reset(restore_boot_devices, standard_boot_devices);
852 g_free(standard_boot_devices);
855 void add_boot_device_path(int32_t bootindex, DeviceState *dev,
858 FWBootEntry *node, *i;
864 assert(dev != NULL || suffix != NULL);
866 node = g_malloc0(sizeof(FWBootEntry));
867 node->bootindex = bootindex;
868 node->suffix = suffix ? g_strdup(suffix) : NULL;
871 QTAILQ_FOREACH(i, &fw_boot_order, link) {
872 if (i->bootindex == bootindex) {
873 fprintf(stderr, "Two devices with same boot index %d\n", bootindex);
875 } else if (i->bootindex < bootindex) {
878 QTAILQ_INSERT_BEFORE(i, node, link);
881 QTAILQ_INSERT_TAIL(&fw_boot_order, node, link);
885 * This function returns null terminated string that consist of new line
886 * separated device paths.
888 * memory pointed by "size" is assigned total length of the array in bytes
891 char *get_boot_devices_list(uint32_t *size)
897 QTAILQ_FOREACH(i, &fw_boot_order, link) {
898 char *devpath = NULL, *bootpath;
902 devpath = qdev_get_fw_dev_path(i->dev);
906 if (i->suffix && devpath) {
907 size_t bootpathlen = strlen(devpath) + strlen(i->suffix) + 1;
909 bootpath = g_malloc(bootpathlen);
910 snprintf(bootpath, bootpathlen, "%s%s", devpath, i->suffix);
912 } else if (devpath) {
915 bootpath = g_strdup(i->suffix);
920 list[total-1] = '\n';
922 len = strlen(bootpath) + 1;
923 list = g_realloc(list, total + len);
924 memcpy(&list[total], bootpath, len);
934 static void numa_add(const char *optarg)
938 unsigned long long value, endvalue;
941 optarg = get_opt_name(option, 128, optarg, ',') + 1;
942 if (!strcmp(option, "node")) {
943 if (get_param_value(option, 128, "nodeid", optarg) == 0) {
944 nodenr = nb_numa_nodes;
946 nodenr = strtoull(option, NULL, 10);
949 if (get_param_value(option, 128, "mem", optarg) == 0) {
950 node_mem[nodenr] = 0;
953 sval = strtosz(option, NULL);
955 fprintf(stderr, "qemu: invalid numa mem size: %s\n", optarg);
958 node_mem[nodenr] = sval;
960 if (get_param_value(option, 128, "cpus", optarg) == 0) {
961 node_cpumask[nodenr] = 0;
963 value = strtoull(option, &endptr, 10);
966 fprintf(stderr, "only 64 CPUs in NUMA mode supported.\n");
968 if (*endptr == '-') {
969 endvalue = strtoull(endptr+1, &endptr, 10);
970 if (endvalue >= 63) {
973 "only 63 CPUs in NUMA mode supported.\n");
975 value = (2ULL << endvalue) - (1ULL << value);
977 value = 1ULL << value;
980 node_cpumask[nodenr] = value;
987 static void smp_parse(const char *optarg)
989 int smp, sockets = 0, threads = 0, cores = 0;
993 smp = strtoul(optarg, &endptr, 10);
994 if (endptr != optarg) {
995 if (*endptr == ',') {
999 if (get_param_value(option, 128, "sockets", endptr) != 0)
1000 sockets = strtoull(option, NULL, 10);
1001 if (get_param_value(option, 128, "cores", endptr) != 0)
1002 cores = strtoull(option, NULL, 10);
1003 if (get_param_value(option, 128, "threads", endptr) != 0)
1004 threads = strtoull(option, NULL, 10);
1005 if (get_param_value(option, 128, "maxcpus", endptr) != 0)
1006 max_cpus = strtoull(option, NULL, 10);
1008 /* compute missing values, prefer sockets over cores over threads */
1009 if (smp == 0 || sockets == 0) {
1010 sockets = sockets > 0 ? sockets : 1;
1011 cores = cores > 0 ? cores : 1;
1012 threads = threads > 0 ? threads : 1;
1014 smp = cores * threads * sockets;
1018 threads = threads > 0 ? threads : 1;
1019 cores = smp / (sockets * threads);
1021 threads = smp / (cores * sockets);
1025 smp_cores = cores > 0 ? cores : 1;
1026 smp_threads = threads > 0 ? threads : 1;
1028 max_cpus = smp_cpus;
1031 /***********************************************************/
1034 static int usb_device_add(const char *devname)
1037 USBDevice *dev = NULL;
1042 /* drivers with .usbdevice_name entry in USBDeviceInfo */
1043 dev = usbdevice_create(devname);
1047 /* the other ones */
1048 #ifndef CONFIG_LINUX
1049 /* only the linux version is qdev-ified, usb-bsd still needs this */
1050 if (strstart(devname, "host:", &p)) {
1051 dev = usb_host_device_open(p);
1054 if (!strcmp(devname, "bt") || strstart(devname, "bt:", &p)) {
1055 dev = usb_bt_init(devname[2] ? hci_init(p) :
1056 bt_new_hci(qemu_find_bt_vlan(0)));
1067 static int usb_device_del(const char *devname)
1072 if (strstart(devname, "host:", &p))
1073 return usb_host_device_close(p);
1078 p = strchr(devname, '.');
1081 bus_num = strtoul(devname, NULL, 0);
1082 addr = strtoul(p + 1, NULL, 0);
1084 return usb_device_delete_addr(bus_num, addr);
1087 static int usb_parse(const char *cmdline)
1090 r = usb_device_add(cmdline);
1092 fprintf(stderr, "qemu: could not add USB device '%s'\n", cmdline);
1097 void do_usb_add(Monitor *mon, const QDict *qdict)
1099 const char *devname = qdict_get_str(qdict, "devname");
1100 if (usb_device_add(devname) < 0) {
1101 error_report("could not add USB device '%s'", devname);
1105 void do_usb_del(Monitor *mon, const QDict *qdict)
1107 const char *devname = qdict_get_str(qdict, "devname");
1108 if (usb_device_del(devname) < 0) {
1109 error_report("could not delete USB device '%s'", devname);
1113 /***********************************************************/
1114 /* PCMCIA/Cardbus */
1116 static struct pcmcia_socket_entry_s {
1117 PCMCIASocket *socket;
1118 struct pcmcia_socket_entry_s *next;
1119 } *pcmcia_sockets = 0;
1121 void pcmcia_socket_register(PCMCIASocket *socket)
1123 struct pcmcia_socket_entry_s *entry;
1125 entry = g_malloc(sizeof(struct pcmcia_socket_entry_s));
1126 entry->socket = socket;
1127 entry->next = pcmcia_sockets;
1128 pcmcia_sockets = entry;
1131 void pcmcia_socket_unregister(PCMCIASocket *socket)
1133 struct pcmcia_socket_entry_s *entry, **ptr;
1135 ptr = &pcmcia_sockets;
1136 for (entry = *ptr; entry; ptr = &entry->next, entry = *ptr)
1137 if (entry->socket == socket) {
1143 void pcmcia_info(Monitor *mon)
1145 struct pcmcia_socket_entry_s *iter;
1147 if (!pcmcia_sockets)
1148 monitor_printf(mon, "No PCMCIA sockets\n");
1150 for (iter = pcmcia_sockets; iter; iter = iter->next)
1151 monitor_printf(mon, "%s: %s\n", iter->socket->slot_string,
1152 iter->socket->attached ? iter->socket->card_string :
1156 /***********************************************************/
1157 /* machine registration */
1159 static QEMUMachine *first_machine = NULL;
1160 QEMUMachine *current_machine = NULL;
1162 int qemu_register_machine(QEMUMachine *m)
1165 pm = &first_machine;
1173 static QEMUMachine *find_machine(const char *name)
1177 for(m = first_machine; m != NULL; m = m->next) {
1178 if (!strcmp(m->name, name))
1180 if (m->alias && !strcmp(m->alias, name))
1186 static QEMUMachine *find_default_machine(void)
1190 for(m = first_machine; m != NULL; m = m->next) {
1191 if (m->is_default) {
1198 /***********************************************************/
1199 /* main execution loop */
1201 static void gui_update(void *opaque)
1203 uint64_t interval = GUI_REFRESH_INTERVAL;
1204 DisplayState *ds = opaque;
1205 DisplayChangeListener *dcl = ds->listeners;
1209 while (dcl != NULL) {
1210 if (dcl->gui_timer_interval &&
1211 dcl->gui_timer_interval < interval)
1212 interval = dcl->gui_timer_interval;
1215 qemu_mod_timer(ds->gui_timer, interval + qemu_get_clock_ms(rt_clock));
1218 struct vm_change_state_entry {
1219 VMChangeStateHandler *cb;
1221 QLIST_ENTRY (vm_change_state_entry) entries;
1224 static QLIST_HEAD(vm_change_state_head, vm_change_state_entry) vm_change_state_head;
1226 VMChangeStateEntry *qemu_add_vm_change_state_handler(VMChangeStateHandler *cb,
1229 VMChangeStateEntry *e;
1231 e = g_malloc0(sizeof (*e));
1235 QLIST_INSERT_HEAD(&vm_change_state_head, e, entries);
1239 void qemu_del_vm_change_state_handler(VMChangeStateEntry *e)
1241 QLIST_REMOVE (e, entries);
1245 void vm_state_notify(int running, RunState state)
1247 VMChangeStateEntry *e;
1249 trace_vm_state_notify(running, state);
1251 for (e = vm_change_state_head.lh_first; e; e = e->entries.le_next) {
1252 e->cb(e->opaque, running, state);
1258 if (!runstate_is_running()) {
1260 runstate_set(RUN_STATE_RUNNING);
1261 vm_state_notify(1, RUN_STATE_RUNNING);
1263 monitor_protocol_event(QEVENT_RESUME, NULL);
1267 /* reset/shutdown handler */
1269 typedef struct QEMUResetEntry {
1270 QTAILQ_ENTRY(QEMUResetEntry) entry;
1271 QEMUResetHandler *func;
1275 static QTAILQ_HEAD(reset_handlers, QEMUResetEntry) reset_handlers =
1276 QTAILQ_HEAD_INITIALIZER(reset_handlers);
1277 static int reset_requested;
1278 static int shutdown_requested, shutdown_signal = -1;
1279 static pid_t shutdown_pid;
1280 static int powerdown_requested;
1281 static int debug_requested;
1282 static RunState vmstop_requested = RUN_STATE_MAX;
1284 int qemu_shutdown_requested_get(void)
1286 return shutdown_requested;
1289 int qemu_reset_requested_get(void)
1291 return reset_requested;
1294 int qemu_shutdown_requested(void)
1296 int r = shutdown_requested;
1297 shutdown_requested = 0;
1301 void qemu_kill_report(void)
1303 if (shutdown_signal != -1) {
1304 fprintf(stderr, "qemu: terminating on signal %d", shutdown_signal);
1305 if (shutdown_pid == 0) {
1306 /* This happens for eg ^C at the terminal, so it's worth
1307 * avoiding printing an odd message in that case.
1309 fputc('\n', stderr);
1311 fprintf(stderr, " from pid " FMT_pid "\n", shutdown_pid);
1313 shutdown_signal = -1;
1317 int qemu_reset_requested(void)
1319 int r = reset_requested;
1320 reset_requested = 0;
1324 int qemu_powerdown_requested(void)
1326 int r = powerdown_requested;
1327 powerdown_requested = 0;
1331 static int qemu_debug_requested(void)
1333 int r = debug_requested;
1334 debug_requested = 0;
1338 /* We use RUN_STATE_MAX but any invalid value will do */
1339 static bool qemu_vmstop_requested(RunState *r)
1341 if (vmstop_requested < RUN_STATE_MAX) {
1342 *r = vmstop_requested;
1343 vmstop_requested = RUN_STATE_MAX;
1350 void qemu_register_reset(QEMUResetHandler *func, void *opaque)
1352 QEMUResetEntry *re = g_malloc0(sizeof(QEMUResetEntry));
1355 re->opaque = opaque;
1356 QTAILQ_INSERT_TAIL(&reset_handlers, re, entry);
1359 void qemu_unregister_reset(QEMUResetHandler *func, void *opaque)
1363 QTAILQ_FOREACH(re, &reset_handlers, entry) {
1364 if (re->func == func && re->opaque == opaque) {
1365 QTAILQ_REMOVE(&reset_handlers, re, entry);
1372 void qemu_system_reset(bool report)
1374 QEMUResetEntry *re, *nre;
1376 /* reset all devices */
1377 QTAILQ_FOREACH_SAFE(re, &reset_handlers, entry, nre) {
1378 re->func(re->opaque);
1381 monitor_protocol_event(QEVENT_RESET, NULL);
1383 cpu_synchronize_all_post_reset();
1386 void qemu_system_reset_request(void)
1389 shutdown_requested = 1;
1391 reset_requested = 1;
1394 qemu_notify_event();
1397 void qemu_system_killed(int signal, pid_t pid)
1399 shutdown_signal = signal;
1402 qemu_system_shutdown_request();
1405 void qemu_system_shutdown_request(void)
1407 shutdown_requested = 1;
1408 qemu_notify_event();
1411 void qemu_system_powerdown_request(void)
1413 powerdown_requested = 1;
1414 qemu_notify_event();
1417 void qemu_system_debug_request(void)
1419 debug_requested = 1;
1420 qemu_notify_event();
1423 void qemu_system_vmstop_request(RunState state)
1425 vmstop_requested = state;
1426 qemu_notify_event();
1429 qemu_irq qemu_system_powerdown;
1431 static bool main_loop_should_exit(void)
1434 if (qemu_debug_requested()) {
1435 vm_stop(RUN_STATE_DEBUG);
1437 if (qemu_shutdown_requested()) {
1439 monitor_protocol_event(QEVENT_SHUTDOWN, NULL);
1441 vm_stop(RUN_STATE_SHUTDOWN);
1446 if (qemu_reset_requested()) {
1448 cpu_synchronize_all_states();
1449 qemu_system_reset(VMRESET_REPORT);
1451 if (runstate_check(RUN_STATE_INTERNAL_ERROR) ||
1452 runstate_check(RUN_STATE_SHUTDOWN)) {
1453 runstate_set(RUN_STATE_PAUSED);
1456 if (qemu_powerdown_requested()) {
1457 monitor_protocol_event(QEVENT_POWERDOWN, NULL);
1458 qemu_irq_raise(qemu_system_powerdown);
1460 if (qemu_vmstop_requested(&r)) {
1466 static void main_loop(void)
1470 #ifdef CONFIG_PROFILER
1474 nonblocking = !kvm_enabled() && last_io > 0;
1475 #ifdef CONFIG_PROFILER
1476 ti = profile_getclock();
1478 last_io = main_loop_wait(nonblocking);
1479 #ifdef CONFIG_PROFILER
1480 dev_time += profile_getclock() - ti;
1482 } while (!main_loop_should_exit());
1485 static void version(void)
1487 printf("QEMU emulator version " QEMU_VERSION QEMU_PKGVERSION ", Copyright (c) 2003-2008 Fabrice Bellard\n");
1490 static void help(int exitcode)
1492 const char *options_help =
1493 #define DEF(option, opt_arg, opt_enum, opt_help, arch_mask) \
1495 #define DEFHEADING(text) stringify(text) "\n"
1496 #include "qemu-options.def"
1502 printf("usage: %s [options] [disk_image]\n"
1504 "'disk_image' is a raw hard disk image for IDE hard disk 0\n"
1507 "During emulation, the following keys are useful:\n"
1508 "ctrl-alt-f toggle full screen\n"
1509 "ctrl-alt-n switch to virtual console 'n'\n"
1510 "ctrl-alt toggle mouse and keyboard grab\n"
1512 "When using -nographic, press 'ctrl-a h' to get some help.\n",
1518 #define HAS_ARG 0x0001
1520 typedef struct QEMUOption {
1527 static const QEMUOption qemu_options[] = {
1528 { "h", 0, QEMU_OPTION_h, QEMU_ARCH_ALL },
1529 #define DEF(option, opt_arg, opt_enum, opt_help, arch_mask) \
1530 { option, opt_arg, opt_enum, arch_mask },
1531 #define DEFHEADING(text)
1532 #include "qemu-options.def"
1538 static void select_vgahw (const char *p)
1543 vga_interface_type = VGA_NONE;
1544 if (strstart(p, "std", &opts)) {
1545 vga_interface_type = VGA_STD;
1546 } else if (strstart(p, "cirrus", &opts)) {
1547 vga_interface_type = VGA_CIRRUS;
1548 } else if (strstart(p, "vmware", &opts)) {
1549 vga_interface_type = VGA_VMWARE;
1550 } else if (strstart(p, "xenfb", &opts)) {
1551 vga_interface_type = VGA_XENFB;
1552 } else if (strstart(p, "qxl", &opts)) {
1553 vga_interface_type = VGA_QXL;
1554 } else if (!strstart(p, "none", &opts)) {
1556 fprintf(stderr, "Unknown vga type: %s\n", p);
1560 const char *nextopt;
1562 if (strstart(opts, ",retrace=", &nextopt)) {
1564 if (strstart(opts, "dumb", &nextopt))
1565 vga_retrace_method = VGA_RETRACE_DUMB;
1566 else if (strstart(opts, "precise", &nextopt))
1567 vga_retrace_method = VGA_RETRACE_PRECISE;
1568 else goto invalid_vga;
1569 } else goto invalid_vga;
1574 static DisplayType select_display(const char *p)
1577 DisplayType display = DT_DEFAULT;
1579 if (strstart(p, "sdl", &opts)) {
1583 const char *nextopt;
1585 if (strstart(opts, ",frame=", &nextopt)) {
1587 if (strstart(opts, "on", &nextopt)) {
1589 } else if (strstart(opts, "off", &nextopt)) {
1592 goto invalid_sdl_args;
1594 } else if (strstart(opts, ",alt_grab=", &nextopt)) {
1596 if (strstart(opts, "on", &nextopt)) {
1598 } else if (strstart(opts, "off", &nextopt)) {
1601 goto invalid_sdl_args;
1603 } else if (strstart(opts, ",ctrl_grab=", &nextopt)) {
1605 if (strstart(opts, "on", &nextopt)) {
1607 } else if (strstart(opts, "off", &nextopt)) {
1610 goto invalid_sdl_args;
1612 } else if (strstart(opts, ",window_close=", &nextopt)) {
1614 if (strstart(opts, "on", &nextopt)) {
1616 } else if (strstart(opts, "off", &nextopt)) {
1619 goto invalid_sdl_args;
1623 fprintf(stderr, "Invalid SDL option string: %s\n", p);
1629 fprintf(stderr, "SDL support is disabled\n");
1632 } else if (strstart(p, "vnc", &opts)) {
1637 const char *nextopt;
1639 if (strstart(opts, "=", &nextopt)) {
1640 vnc_display = nextopt;
1644 fprintf(stderr, "VNC requires a display argument vnc=<display>\n");
1648 fprintf(stderr, "VNC support is disabled\n");
1651 } else if (strstart(p, "curses", &opts)) {
1652 #ifdef CONFIG_CURSES
1653 display = DT_CURSES;
1655 fprintf(stderr, "Curses support is disabled\n");
1658 } else if (strstart(p, "none", &opts)) {
1661 fprintf(stderr, "Unknown display type: %s\n", p);
1668 static int balloon_parse(const char *arg)
1672 if (strcmp(arg, "none") == 0) {
1676 if (!strncmp(arg, "virtio", 6)) {
1677 if (arg[6] == ',') {
1678 /* have params -> parse them */
1679 opts = qemu_opts_parse(qemu_find_opts("device"), arg+7, 0);
1683 /* create empty opts */
1684 opts = qemu_opts_create(qemu_find_opts("device"), NULL, 0);
1686 qemu_opt_set(opts, "driver", "virtio-balloon");
1693 char *qemu_find_file(int type, const char *name)
1699 /* If name contains path separators then try it as a straight path. */
1700 if ((strchr(name, '/') || strchr(name, '\\'))
1701 && access(name, R_OK) == 0) {
1702 return g_strdup(name);
1705 case QEMU_FILE_TYPE_BIOS:
1708 case QEMU_FILE_TYPE_KEYMAP:
1709 subdir = "keymaps/";
1714 len = strlen(data_dir) + strlen(name) + strlen(subdir) + 2;
1715 buf = g_malloc0(len);
1716 snprintf(buf, len, "%s/%s%s", data_dir, subdir, name);
1717 if (access(buf, R_OK)) {
1724 static int device_help_func(QemuOpts *opts, void *opaque)
1726 return qdev_device_help(opts);
1729 static int device_init_func(QemuOpts *opts, void *opaque)
1733 dev = qdev_device_add(opts);
1739 static int chardev_init_func(QemuOpts *opts, void *opaque)
1741 CharDriverState *chr;
1743 chr = qemu_chr_new_from_opts(opts, NULL);
1749 #ifdef CONFIG_VIRTFS
1750 static int fsdev_init_func(QemuOpts *opts, void *opaque)
1753 ret = qemu_fsdev_add(opts);
1759 static int mon_init_func(QemuOpts *opts, void *opaque)
1761 CharDriverState *chr;
1762 const char *chardev;
1766 mode = qemu_opt_get(opts, "mode");
1770 if (strcmp(mode, "readline") == 0) {
1771 flags = MONITOR_USE_READLINE;
1772 } else if (strcmp(mode, "control") == 0) {
1773 flags = MONITOR_USE_CONTROL;
1775 fprintf(stderr, "unknown monitor mode \"%s\"\n", mode);
1779 if (qemu_opt_get_bool(opts, "pretty", 0))
1780 flags |= MONITOR_USE_PRETTY;
1782 if (qemu_opt_get_bool(opts, "default", 0))
1783 flags |= MONITOR_IS_DEFAULT;
1785 chardev = qemu_opt_get(opts, "chardev");
1786 chr = qemu_chr_find(chardev);
1788 fprintf(stderr, "chardev \"%s\" not found\n", chardev);
1792 monitor_init(chr, flags);
1796 static void monitor_parse(const char *optarg, const char *mode)
1798 static int monitor_device_index = 0;
1804 if (strstart(optarg, "chardev:", &p)) {
1805 snprintf(label, sizeof(label), "%s", p);
1807 snprintf(label, sizeof(label), "compat_monitor%d",
1808 monitor_device_index);
1809 if (monitor_device_index == 0) {
1812 opts = qemu_chr_parse_compat(label, optarg);
1814 fprintf(stderr, "parse error: %s\n", optarg);
1819 opts = qemu_opts_create(qemu_find_opts("mon"), label, 1);
1821 fprintf(stderr, "duplicate chardev: %s\n", label);
1824 qemu_opt_set(opts, "mode", mode);
1825 qemu_opt_set(opts, "chardev", label);
1827 qemu_opt_set(opts, "default", "on");
1828 monitor_device_index++;
1831 struct device_config {
1833 DEV_USB, /* -usbdevice */
1835 DEV_SERIAL, /* -serial */
1836 DEV_PARALLEL, /* -parallel */
1837 DEV_VIRTCON, /* -virtioconsole */
1838 DEV_DEBUGCON, /* -debugcon */
1840 const char *cmdline;
1841 QTAILQ_ENTRY(device_config) next;
1843 QTAILQ_HEAD(, device_config) device_configs = QTAILQ_HEAD_INITIALIZER(device_configs);
1845 static void add_device_config(int type, const char *cmdline)
1847 struct device_config *conf;
1849 conf = g_malloc0(sizeof(*conf));
1851 conf->cmdline = cmdline;
1852 QTAILQ_INSERT_TAIL(&device_configs, conf, next);
1855 static int foreach_device_config(int type, int (*func)(const char *cmdline))
1857 struct device_config *conf;
1860 QTAILQ_FOREACH(conf, &device_configs, next) {
1861 if (conf->type != type)
1863 rc = func(conf->cmdline);
1870 static int serial_parse(const char *devname)
1872 static int index = 0;
1875 if (strcmp(devname, "none") == 0)
1877 if (index == MAX_SERIAL_PORTS) {
1878 fprintf(stderr, "qemu: too many serial ports\n");
1881 snprintf(label, sizeof(label), "serial%d", index);
1882 serial_hds[index] = qemu_chr_new(label, devname, NULL);
1883 if (!serial_hds[index]) {
1884 fprintf(stderr, "qemu: could not open serial device '%s': %s\n",
1885 devname, strerror(errno));
1892 static int parallel_parse(const char *devname)
1894 static int index = 0;
1897 if (strcmp(devname, "none") == 0)
1899 if (index == MAX_PARALLEL_PORTS) {
1900 fprintf(stderr, "qemu: too many parallel ports\n");
1903 snprintf(label, sizeof(label), "parallel%d", index);
1904 parallel_hds[index] = qemu_chr_new(label, devname, NULL);
1905 if (!parallel_hds[index]) {
1906 fprintf(stderr, "qemu: could not open parallel device '%s': %s\n",
1907 devname, strerror(errno));
1914 static int virtcon_parse(const char *devname)
1916 QemuOptsList *device = qemu_find_opts("device");
1917 static int index = 0;
1919 QemuOpts *bus_opts, *dev_opts;
1921 if (strcmp(devname, "none") == 0)
1923 if (index == MAX_VIRTIO_CONSOLES) {
1924 fprintf(stderr, "qemu: too many virtio consoles\n");
1928 bus_opts = qemu_opts_create(device, NULL, 0);
1929 qemu_opt_set(bus_opts, "driver", "virtio-serial");
1931 dev_opts = qemu_opts_create(device, NULL, 0);
1932 qemu_opt_set(dev_opts, "driver", "virtconsole");
1934 snprintf(label, sizeof(label), "virtcon%d", index);
1935 virtcon_hds[index] = qemu_chr_new(label, devname, NULL);
1936 if (!virtcon_hds[index]) {
1937 fprintf(stderr, "qemu: could not open virtio console '%s': %s\n",
1938 devname, strerror(errno));
1941 qemu_opt_set(dev_opts, "chardev", label);
1947 static int debugcon_parse(const char *devname)
1951 if (!qemu_chr_new("debugcon", devname, NULL)) {
1954 opts = qemu_opts_create(qemu_find_opts("device"), "debugcon", 1);
1956 fprintf(stderr, "qemu: already have a debugcon device\n");
1959 qemu_opt_set(opts, "driver", "isa-debugcon");
1960 qemu_opt_set(opts, "chardev", "debugcon");
1964 static QEMUMachine *machine_parse(const char *name)
1966 QEMUMachine *m, *machine = NULL;
1969 machine = find_machine(name);
1974 printf("Supported machines are:\n");
1975 for (m = first_machine; m != NULL; m = m->next) {
1977 printf("%-10s %s (alias of %s)\n", m->alias, m->desc, m->name);
1979 printf("%-10s %s%s\n", m->name, m->desc,
1980 m->is_default ? " (default)" : "");
1982 exit(!name || *name != '?');
1985 static int tcg_init(void)
1987 tcg_exec_init(tcg_tb_size * 1024 * 1024);
1992 const char *opt_name;
1994 int (*available)(void);
1998 { "tcg", "tcg", tcg_available, tcg_init, &tcg_allowed },
1999 { "xen", "Xen", xen_available, xen_init, &xen_allowed },
2000 { "kvm", "KVM", kvm_available, kvm_init, &kvm_allowed },
2003 static int configure_accelerator(void)
2005 const char *p = NULL;
2008 bool accel_initalised = 0;
2009 bool init_failed = 0;
2011 QemuOptsList *list = qemu_find_opts("machine");
2012 if (!QTAILQ_EMPTY(&list->head)) {
2013 p = qemu_opt_get(QTAILQ_FIRST(&list->head), "accel");
2017 /* Use the default "accelerator", tcg */
2021 while (!accel_initalised && *p != '\0') {
2025 p = get_opt_name(buf, sizeof (buf), p, ':');
2026 for (i = 0; i < ARRAY_SIZE(accel_list); i++) {
2027 if (strcmp(accel_list[i].opt_name, buf) == 0) {
2028 *(accel_list[i].allowed) = 1;
2029 ret = accel_list[i].init();
2032 if (!accel_list[i].available()) {
2033 printf("%s not supported for this target\n",
2034 accel_list[i].name);
2036 fprintf(stderr, "failed to initialize %s: %s\n",
2040 *(accel_list[i].allowed) = 0;
2042 accel_initalised = 1;
2047 if (i == ARRAY_SIZE(accel_list)) {
2048 fprintf(stderr, "\"%s\" accelerator does not exist.\n", buf);
2052 if (!accel_initalised) {
2053 fprintf(stderr, "No accelerator found!\n");
2058 fprintf(stderr, "Back to %s accelerator.\n", accel_list[i].name);
2061 return !accel_initalised;
2064 void qemu_add_exit_notifier(Notifier *notify)
2066 notifier_list_add(&exit_notifiers, notify);
2069 void qemu_remove_exit_notifier(Notifier *notify)
2071 notifier_list_remove(&exit_notifiers, notify);
2074 static void qemu_run_exit_notifiers(void)
2076 notifier_list_notify(&exit_notifiers, NULL);
2079 void qemu_add_machine_init_done_notifier(Notifier *notify)
2081 notifier_list_add(&machine_init_done_notifiers, notify);
2084 static void qemu_run_machine_init_done_notifiers(void)
2086 notifier_list_notify(&machine_init_done_notifiers, NULL);
2089 static const QEMUOption *lookup_opt(int argc, char **argv,
2090 const char **poptarg, int *poptind)
2092 const QEMUOption *popt;
2093 int optind = *poptind;
2094 char *r = argv[optind];
2097 loc_set_cmdline(argv, optind, 1);
2099 /* Treat --foo the same as -foo. */
2102 popt = qemu_options;
2105 error_report("invalid option");
2108 if (!strcmp(popt->name, r + 1))
2112 if (popt->flags & HAS_ARG) {
2113 if (optind >= argc) {
2114 error_report("requires an argument");
2117 optarg = argv[optind++];
2118 loc_set_cmdline(argv, optind - 2, 2);
2129 static gpointer malloc_and_trace(gsize n_bytes)
2131 void *ptr = malloc(n_bytes);
2132 trace_g_malloc(n_bytes, ptr);
2136 static gpointer realloc_and_trace(gpointer mem, gsize n_bytes)
2138 void *ptr = realloc(mem, n_bytes);
2139 trace_g_realloc(mem, n_bytes, ptr);
2143 static void free_and_trace(gpointer mem)
2149 int main(int argc, char **argv, char **envp)
2151 const char *gdbstub_dev = NULL;
2153 int snapshot, linux_boot;
2154 const char *icount_option = NULL;
2155 const char *initrd_filename;
2156 const char *kernel_filename, *kernel_cmdline;
2157 char boot_devices[33] = "cad"; /* default to HD->floppy->CD-ROM */
2159 DisplayChangeListener *dcl;
2160 int cyls, heads, secs, translation;
2161 QemuOpts *hda_opts = NULL, *opts;
2162 QemuOptsList *olist;
2165 const char *loadvm = NULL;
2166 QEMUMachine *machine;
2167 const char *cpu_model;
2168 const char *pid_file = NULL;
2169 const char *incoming = NULL;
2171 int show_vnc_port = 0;
2174 const char *log_mask = NULL;
2175 const char *log_file = NULL;
2176 GMemVTable mem_trace = {
2177 .malloc = malloc_and_trace,
2178 .realloc = realloc_and_trace,
2179 .free = free_and_trace,
2181 const char *trace_events = NULL;
2182 const char *trace_file = NULL;
2184 atexit(qemu_run_exit_notifiers);
2185 error_set_progname(argv[0]);
2187 g_mem_set_vtable(&mem_trace);
2188 g_thread_init(NULL);
2193 rtc_clock = host_clock;
2195 qemu_cache_utils_init(envp);
2197 QLIST_INIT (&vm_change_state_head);
2198 os_setup_early_signal_handling();
2200 module_call_init(MODULE_INIT_MACHINE);
2201 machine = find_default_machine();
2203 initrd_filename = NULL;
2206 kernel_filename = NULL;
2207 kernel_cmdline = "";
2208 cyls = heads = secs = 0;
2209 translation = BIOS_ATA_TRANSLATION_AUTO;
2211 for (i = 0; i < MAX_NODES; i++) {
2213 node_cpumask[i] = 0;
2221 /* first pass of option parsing */
2223 while (optind < argc) {
2224 if (argv[optind][0] != '-') {
2229 const QEMUOption *popt;
2231 popt = lookup_opt(argc, argv, &optarg, &optind);
2232 switch (popt->index) {
2233 case QEMU_OPTION_nodefconfig:
2243 ret = qemu_read_config_file(CONFIG_QEMU_CONFDIR "/qemu.conf");
2244 if (ret < 0 && ret != -ENOENT) {
2248 ret = qemu_read_config_file(arch_config_name);
2249 if (ret < 0 && ret != -ENOENT) {
2255 /* second pass of option parsing */
2260 if (argv[optind][0] != '-') {
2261 hda_opts = drive_add(IF_DEFAULT, 0, argv[optind++], HD_OPTS);
2263 const QEMUOption *popt;
2265 popt = lookup_opt(argc, argv, &optarg, &optind);
2266 if (!(popt->arch_mask & arch_type)) {
2267 printf("Option %s not supported for this target\n", popt->name);
2270 switch(popt->index) {
2272 machine = machine_parse(optarg);
2274 case QEMU_OPTION_cpu:
2275 /* hw initialization will check this */
2276 if (*optarg == '?') {
2277 list_cpus(stdout, &fprintf, optarg);
2283 case QEMU_OPTION_initrd:
2284 initrd_filename = optarg;
2286 case QEMU_OPTION_hda:
2290 snprintf(buf, sizeof(buf), "%s", HD_OPTS);
2292 snprintf(buf, sizeof(buf),
2293 "%s,cyls=%d,heads=%d,secs=%d%s",
2294 HD_OPTS , cyls, heads, secs,
2295 translation == BIOS_ATA_TRANSLATION_LBA ?
2297 translation == BIOS_ATA_TRANSLATION_NONE ?
2298 ",trans=none" : "");
2299 drive_add(IF_DEFAULT, 0, optarg, buf);
2302 case QEMU_OPTION_hdb:
2303 case QEMU_OPTION_hdc:
2304 case QEMU_OPTION_hdd:
2305 drive_add(IF_DEFAULT, popt->index - QEMU_OPTION_hda, optarg,
2308 case QEMU_OPTION_drive:
2309 if (drive_def(optarg) == NULL) {
2313 case QEMU_OPTION_set:
2314 if (qemu_set_option(optarg) != 0)
2317 case QEMU_OPTION_global:
2318 if (qemu_global_option(optarg) != 0)
2321 case QEMU_OPTION_mtdblock:
2322 drive_add(IF_MTD, -1, optarg, MTD_OPTS);
2324 case QEMU_OPTION_sd:
2325 drive_add(IF_SD, 0, optarg, SD_OPTS);
2327 case QEMU_OPTION_pflash:
2328 drive_add(IF_PFLASH, -1, optarg, PFLASH_OPTS);
2330 case QEMU_OPTION_snapshot:
2333 case QEMU_OPTION_hdachs:
2337 cyls = strtol(p, (char **)&p, 0);
2338 if (cyls < 1 || cyls > 16383)
2343 heads = strtol(p, (char **)&p, 0);
2344 if (heads < 1 || heads > 16)
2349 secs = strtol(p, (char **)&p, 0);
2350 if (secs < 1 || secs > 63)
2354 if (!strcmp(p, "none"))
2355 translation = BIOS_ATA_TRANSLATION_NONE;
2356 else if (!strcmp(p, "lba"))
2357 translation = BIOS_ATA_TRANSLATION_LBA;
2358 else if (!strcmp(p, "auto"))
2359 translation = BIOS_ATA_TRANSLATION_AUTO;
2362 } else if (*p != '\0') {
2364 fprintf(stderr, "qemu: invalid physical CHS format\n");
2367 if (hda_opts != NULL) {
2369 snprintf(num, sizeof(num), "%d", cyls);
2370 qemu_opt_set(hda_opts, "cyls", num);
2371 snprintf(num, sizeof(num), "%d", heads);
2372 qemu_opt_set(hda_opts, "heads", num);
2373 snprintf(num, sizeof(num), "%d", secs);
2374 qemu_opt_set(hda_opts, "secs", num);
2375 if (translation == BIOS_ATA_TRANSLATION_LBA)
2376 qemu_opt_set(hda_opts, "trans", "lba");
2377 if (translation == BIOS_ATA_TRANSLATION_NONE)
2378 qemu_opt_set(hda_opts, "trans", "none");
2382 case QEMU_OPTION_numa:
2383 if (nb_numa_nodes >= MAX_NODES) {
2384 fprintf(stderr, "qemu: too many NUMA nodes\n");
2389 case QEMU_OPTION_display:
2390 display_type = select_display(optarg);
2392 case QEMU_OPTION_nographic:
2393 display_type = DT_NOGRAPHIC;
2395 case QEMU_OPTION_curses:
2396 #ifdef CONFIG_CURSES
2397 display_type = DT_CURSES;
2399 fprintf(stderr, "Curses support is disabled\n");
2403 case QEMU_OPTION_portrait:
2404 graphic_rotate = 90;
2406 case QEMU_OPTION_rotate:
2407 graphic_rotate = strtol(optarg, (char **) &optarg, 10);
2408 if (graphic_rotate != 0 && graphic_rotate != 90 &&
2409 graphic_rotate != 180 && graphic_rotate != 270) {
2411 "qemu: only 90, 180, 270 deg rotation is available\n");
2415 case QEMU_OPTION_kernel:
2416 kernel_filename = optarg;
2418 case QEMU_OPTION_append:
2419 kernel_cmdline = optarg;
2421 case QEMU_OPTION_cdrom:
2422 drive_add(IF_DEFAULT, 2, optarg, CDROM_OPTS);
2424 case QEMU_OPTION_boot:
2426 static const char * const params[] = {
2427 "order", "once", "menu",
2428 "splash", "splash-time", NULL
2430 char buf[sizeof(boot_devices)];
2431 char *standard_boot_devices;
2434 if (!strchr(optarg, '=')) {
2436 pstrcpy(buf, sizeof(buf), optarg);
2437 } else if (check_params(buf, sizeof(buf), params, optarg) < 0) {
2439 "qemu: unknown boot parameter '%s' in '%s'\n",
2445 get_param_value(buf, sizeof(buf), "order", optarg)) {
2446 validate_bootdevices(buf);
2447 pstrcpy(boot_devices, sizeof(boot_devices), buf);
2450 if (get_param_value(buf, sizeof(buf),
2452 validate_bootdevices(buf);
2453 standard_boot_devices = g_strdup(boot_devices);
2454 pstrcpy(boot_devices, sizeof(boot_devices), buf);
2455 qemu_register_reset(restore_boot_devices,
2456 standard_boot_devices);
2458 if (get_param_value(buf, sizeof(buf),
2460 if (!strcmp(buf, "on")) {
2462 } else if (!strcmp(buf, "off")) {
2466 "qemu: invalid option value '%s'\n",
2471 qemu_opts_parse(qemu_find_opts("boot-opts"),
2476 case QEMU_OPTION_fda:
2477 case QEMU_OPTION_fdb:
2478 drive_add(IF_FLOPPY, popt->index - QEMU_OPTION_fda,
2481 case QEMU_OPTION_no_fd_bootchk:
2484 case QEMU_OPTION_netdev:
2485 if (net_client_parse(qemu_find_opts("netdev"), optarg) == -1) {
2489 case QEMU_OPTION_net:
2490 if (net_client_parse(qemu_find_opts("net"), optarg) == -1) {
2495 case QEMU_OPTION_tftp:
2496 legacy_tftp_prefix = optarg;
2498 case QEMU_OPTION_bootp:
2499 legacy_bootp_filename = optarg;
2501 case QEMU_OPTION_redir:
2502 if (net_slirp_redir(optarg) < 0)
2506 case QEMU_OPTION_bt:
2507 add_device_config(DEV_BT, optarg);
2509 case QEMU_OPTION_audio_help:
2510 if (!(audio_available())) {
2511 printf("Option %s not supported for this target\n", popt->name);
2517 case QEMU_OPTION_soundhw:
2518 if (!(audio_available())) {
2519 printf("Option %s not supported for this target\n", popt->name);
2522 select_soundhw (optarg);
2527 case QEMU_OPTION_version:
2531 case QEMU_OPTION_m: {
2534 value = strtosz(optarg, NULL);
2536 fprintf(stderr, "qemu: invalid ram size: %s\n", optarg);
2540 if (value != (uint64_t)(ram_addr_t)value) {
2541 fprintf(stderr, "qemu: ram size too large\n");
2547 case QEMU_OPTION_mempath:
2551 case QEMU_OPTION_mem_prealloc:
2562 gdbstub_dev = "tcp::" DEFAULT_GDBSTUB_PORT;
2564 case QEMU_OPTION_gdb:
2565 gdbstub_dev = optarg;
2570 case QEMU_OPTION_bios:
2573 case QEMU_OPTION_singlestep:
2580 keyboard_layout = optarg;
2582 case QEMU_OPTION_localtime:
2585 case QEMU_OPTION_vga:
2586 select_vgahw (optarg);
2593 w = strtol(p, (char **)&p, 10);
2596 fprintf(stderr, "qemu: invalid resolution or depth\n");
2602 h = strtol(p, (char **)&p, 10);
2607 depth = strtol(p, (char **)&p, 10);
2608 if (depth != 8 && depth != 15 && depth != 16 &&
2609 depth != 24 && depth != 32)
2611 } else if (*p == '\0') {
2612 depth = graphic_depth;
2619 graphic_depth = depth;
2622 case QEMU_OPTION_echr:
2625 term_escape_char = strtol(optarg, &r, 0);
2627 printf("Bad argument to echr\n");
2630 case QEMU_OPTION_monitor:
2631 monitor_parse(optarg, "readline");
2632 default_monitor = 0;
2634 case QEMU_OPTION_qmp:
2635 monitor_parse(optarg, "control");
2636 default_monitor = 0;
2638 case QEMU_OPTION_mon:
2639 opts = qemu_opts_parse(qemu_find_opts("mon"), optarg, 1);
2643 default_monitor = 0;
2645 case QEMU_OPTION_chardev:
2646 opts = qemu_opts_parse(qemu_find_opts("chardev"), optarg, 1);
2651 case QEMU_OPTION_fsdev:
2652 olist = qemu_find_opts("fsdev");
2654 fprintf(stderr, "fsdev is not supported by this qemu build.\n");
2657 opts = qemu_opts_parse(olist, optarg, 1);
2659 fprintf(stderr, "parse error: %s\n", optarg);
2663 case QEMU_OPTION_virtfs: {
2666 const char *writeout;
2668 olist = qemu_find_opts("virtfs");
2670 fprintf(stderr, "virtfs is not supported by this qemu build.\n");
2673 opts = qemu_opts_parse(olist, optarg, 1);
2675 fprintf(stderr, "parse error: %s\n", optarg);
2679 if (qemu_opt_get(opts, "fsdriver") == NULL ||
2680 qemu_opt_get(opts, "mount_tag") == NULL ||
2681 qemu_opt_get(opts, "path") == NULL) {
2682 fprintf(stderr, "Usage: -virtfs fsdriver,path=/share_path/,"
2683 "[security_model={mapped|passthrough|none}],"
2684 "mount_tag=tag.\n");
2687 fsdev = qemu_opts_create(qemu_find_opts("fsdev"),
2688 qemu_opt_get(opts, "mount_tag"), 1);
2690 fprintf(stderr, "duplicate fsdev id: %s\n",
2691 qemu_opt_get(opts, "mount_tag"));
2695 writeout = qemu_opt_get(opts, "writeout");
2697 #ifdef CONFIG_SYNC_FILE_RANGE
2698 qemu_opt_set(fsdev, "writeout", writeout);
2700 fprintf(stderr, "writeout=immediate not supported on "
2705 qemu_opt_set(fsdev, "fsdriver", qemu_opt_get(opts, "fsdriver"));
2706 qemu_opt_set(fsdev, "path", qemu_opt_get(opts, "path"));
2707 qemu_opt_set(fsdev, "security_model",
2708 qemu_opt_get(opts, "security_model"));
2710 qemu_opt_set_bool(fsdev, "readonly",
2711 qemu_opt_get_bool(opts, "readonly", 0));
2712 device = qemu_opts_create(qemu_find_opts("device"), NULL, 0);
2713 qemu_opt_set(device, "driver", "virtio-9p-pci");
2714 qemu_opt_set(device, "fsdev",
2715 qemu_opt_get(opts, "mount_tag"));
2716 qemu_opt_set(device, "mount_tag",
2717 qemu_opt_get(opts, "mount_tag"));
2720 case QEMU_OPTION_virtfs_synth: {
2724 fsdev = qemu_opts_create(qemu_find_opts("fsdev"), "v_synth", 1);
2726 fprintf(stderr, "duplicate option: %s\n", "virtfs_synth");
2729 qemu_opt_set(fsdev, "fsdriver", "synth");
2730 qemu_opt_set(fsdev, "path", "/"); /* ignored */
2732 device = qemu_opts_create(qemu_find_opts("device"), NULL, 0);
2733 qemu_opt_set(device, "driver", "virtio-9p-pci");
2734 qemu_opt_set(device, "fsdev", "v_synth");
2735 qemu_opt_set(device, "mount_tag", "v_synth");
2738 case QEMU_OPTION_serial:
2739 add_device_config(DEV_SERIAL, optarg);
2741 if (strncmp(optarg, "mon:", 4) == 0) {
2742 default_monitor = 0;
2745 case QEMU_OPTION_watchdog:
2748 "qemu: only one watchdog option may be given\n");
2753 case QEMU_OPTION_watchdog_action:
2754 if (select_watchdog_action(optarg) == -1) {
2755 fprintf(stderr, "Unknown -watchdog-action parameter\n");
2759 case QEMU_OPTION_virtiocon:
2760 add_device_config(DEV_VIRTCON, optarg);
2761 default_virtcon = 0;
2762 if (strncmp(optarg, "mon:", 4) == 0) {
2763 default_monitor = 0;
2766 case QEMU_OPTION_parallel:
2767 add_device_config(DEV_PARALLEL, optarg);
2768 default_parallel = 0;
2769 if (strncmp(optarg, "mon:", 4) == 0) {
2770 default_monitor = 0;
2773 case QEMU_OPTION_debugcon:
2774 add_device_config(DEV_DEBUGCON, optarg);
2776 case QEMU_OPTION_loadvm:
2779 case QEMU_OPTION_full_screen:
2783 case QEMU_OPTION_no_frame:
2786 case QEMU_OPTION_alt_grab:
2789 case QEMU_OPTION_ctrl_grab:
2792 case QEMU_OPTION_no_quit:
2795 case QEMU_OPTION_sdl:
2796 display_type = DT_SDL;
2799 case QEMU_OPTION_no_frame:
2800 case QEMU_OPTION_alt_grab:
2801 case QEMU_OPTION_ctrl_grab:
2802 case QEMU_OPTION_no_quit:
2803 case QEMU_OPTION_sdl:
2804 fprintf(stderr, "SDL support is disabled\n");
2807 case QEMU_OPTION_pidfile:
2810 case QEMU_OPTION_win2k_hack:
2811 win2k_install_hack = 1;
2813 case QEMU_OPTION_rtc_td_hack:
2816 case QEMU_OPTION_acpitable:
2817 do_acpitable_option(optarg);
2819 case QEMU_OPTION_smbios:
2820 do_smbios_option(optarg);
2822 case QEMU_OPTION_enable_kvm:
2823 olist = qemu_find_opts("machine");
2824 qemu_opts_reset(olist);
2825 qemu_opts_parse(olist, "accel=kvm", 0);
2827 case QEMU_OPTION_machine:
2828 olist = qemu_find_opts("machine");
2829 qemu_opts_reset(olist);
2830 opts = qemu_opts_parse(olist, optarg, 1);
2832 fprintf(stderr, "parse error: %s\n", optarg);
2835 optarg = qemu_opt_get(opts, "type");
2837 machine = machine_parse(optarg);
2840 case QEMU_OPTION_usb:
2843 case QEMU_OPTION_usbdevice:
2845 add_device_config(DEV_USB, optarg);
2847 case QEMU_OPTION_device:
2848 if (!qemu_opts_parse(qemu_find_opts("device"), optarg, 1)) {
2852 case QEMU_OPTION_smp:
2855 fprintf(stderr, "Invalid number of CPUs\n");
2858 if (max_cpus < smp_cpus) {
2859 fprintf(stderr, "maxcpus must be equal to or greater than "
2863 if (max_cpus > 255) {
2864 fprintf(stderr, "Unsupported number of maxcpus\n");
2868 case QEMU_OPTION_vnc:
2871 vnc_display = optarg;
2873 fprintf(stderr, "VNC support is disabled\n");
2877 case QEMU_OPTION_no_acpi:
2880 case QEMU_OPTION_no_hpet:
2883 case QEMU_OPTION_balloon:
2884 if (balloon_parse(optarg) < 0) {
2885 fprintf(stderr, "Unknown -balloon argument %s\n", optarg);
2889 case QEMU_OPTION_no_reboot:
2892 case QEMU_OPTION_no_shutdown:
2895 case QEMU_OPTION_show_cursor:
2898 case QEMU_OPTION_uuid:
2899 if(qemu_uuid_parse(optarg, qemu_uuid) < 0) {
2900 fprintf(stderr, "Fail to parse UUID string."
2901 " Wrong format.\n");
2905 case QEMU_OPTION_option_rom:
2906 if (nb_option_roms >= MAX_OPTION_ROMS) {
2907 fprintf(stderr, "Too many option ROMs\n");
2910 opts = qemu_opts_parse(qemu_find_opts("option-rom"), optarg, 1);
2911 option_rom[nb_option_roms].name = qemu_opt_get(opts, "romfile");
2912 option_rom[nb_option_roms].bootindex =
2913 qemu_opt_get_number(opts, "bootindex", -1);
2914 if (!option_rom[nb_option_roms].name) {
2915 fprintf(stderr, "Option ROM file is not specified\n");
2920 case QEMU_OPTION_semihosting:
2921 semihosting_enabled = 1;
2923 case QEMU_OPTION_name:
2924 qemu_name = g_strdup(optarg);
2926 char *p = strchr(qemu_name, ',');
2929 if (strncmp(p, "process=", 8)) {
2930 fprintf(stderr, "Unknown subargument %s to -name\n", p);
2934 os_set_proc_name(p);
2938 case QEMU_OPTION_prom_env:
2939 if (nb_prom_envs >= MAX_PROM_ENVS) {
2940 fprintf(stderr, "Too many prom variables\n");
2943 prom_envs[nb_prom_envs] = optarg;
2946 case QEMU_OPTION_old_param:
2949 case QEMU_OPTION_clock:
2950 configure_alarms(optarg);
2952 case QEMU_OPTION_startdate:
2953 configure_rtc_date_offset(optarg, 1);
2955 case QEMU_OPTION_rtc:
2956 opts = qemu_opts_parse(qemu_find_opts("rtc"), optarg, 0);
2960 configure_rtc(opts);
2962 case QEMU_OPTION_tb_size:
2963 tcg_tb_size = strtol(optarg, NULL, 0);
2964 if (tcg_tb_size < 0) {
2968 case QEMU_OPTION_icount:
2969 icount_option = optarg;
2971 case QEMU_OPTION_incoming:
2974 case QEMU_OPTION_nodefaults:
2976 default_parallel = 0;
2977 default_virtcon = 0;
2978 default_monitor = 0;
2985 case QEMU_OPTION_xen_domid:
2986 if (!(xen_available())) {
2987 printf("Option %s not supported for this target\n", popt->name);
2990 xen_domid = atoi(optarg);
2992 case QEMU_OPTION_xen_create:
2993 if (!(xen_available())) {
2994 printf("Option %s not supported for this target\n", popt->name);
2997 xen_mode = XEN_CREATE;
2999 case QEMU_OPTION_xen_attach:
3000 if (!(xen_available())) {
3001 printf("Option %s not supported for this target\n", popt->name);
3004 xen_mode = XEN_ATTACH;
3006 case QEMU_OPTION_trace:
3008 opts = qemu_opts_parse(qemu_find_opts("trace"), optarg, 0);
3012 trace_events = qemu_opt_get(opts, "events");
3013 trace_file = qemu_opt_get(opts, "file");
3016 case QEMU_OPTION_readconfig:
3018 int ret = qemu_read_config_file(optarg);
3020 fprintf(stderr, "read config %s: %s\n", optarg,
3026 case QEMU_OPTION_spice:
3027 olist = qemu_find_opts("spice");
3029 fprintf(stderr, "spice is not supported by this qemu build.\n");
3032 opts = qemu_opts_parse(olist, optarg, 0);
3034 fprintf(stderr, "parse error: %s\n", optarg);
3038 case QEMU_OPTION_writeconfig:
3041 if (strcmp(optarg, "-") == 0) {
3044 fp = fopen(optarg, "w");
3046 fprintf(stderr, "open %s: %s\n", optarg, strerror(errno));
3050 qemu_config_write(fp);
3055 os_parse_cmd_args(popt->index, optarg);
3061 /* Open the logfile at this point, if necessary. We can't open the logfile
3062 * when encountering either of the logging options (-d or -D) because the
3063 * other one may be encountered later on the command line, changing the
3064 * location or level of logging.
3068 set_cpu_log_filename(log_file);
3070 set_cpu_log(log_mask);
3073 if (!trace_backend_init(trace_events, trace_file)) {
3077 /* If no data_dir is specified then try to find it relative to the
3080 data_dir = os_find_datadir(argv[0]);
3082 /* If all else fails use the install path specified when building. */
3084 data_dir = CONFIG_QEMU_DATADIR;
3088 * Default to max_cpus = smp_cpus, in case the user doesn't
3089 * specify a max_cpus value.
3092 max_cpus = smp_cpus;
3094 machine->max_cpus = machine->max_cpus ?: 1; /* Default to UP */
3095 if (smp_cpus > machine->max_cpus) {
3096 fprintf(stderr, "Number of SMP cpus requested (%d), exceeds max cpus "
3097 "supported by machine `%s' (%d)\n", smp_cpus, machine->name,
3103 * Get the default machine options from the machine if it is not already
3104 * specified either by the configuration file or by the command line.
3106 if (machine->default_machine_opts) {
3107 QemuOptsList *list = qemu_find_opts("machine");
3108 const char *p = NULL;
3110 if (!QTAILQ_EMPTY(&list->head)) {
3111 p = qemu_opt_get(QTAILQ_FIRST(&list->head), "accel");
3114 qemu_opts_reset(list);
3115 opts = qemu_opts_parse(list, machine->default_machine_opts, 0);
3117 fprintf(stderr, "parse error for machine %s: %s\n",
3118 machine->name, machine->default_machine_opts);
3124 qemu_opts_foreach(qemu_find_opts("device"), default_driver_check, NULL, 0);
3125 qemu_opts_foreach(qemu_find_opts("global"), default_driver_check, NULL, 0);
3127 if (machine->no_serial) {
3130 if (machine->no_parallel) {
3131 default_parallel = 0;
3133 if (!machine->use_virtcon) {
3134 default_virtcon = 0;
3136 if (machine->no_vga) {
3139 if (machine->no_floppy) {
3142 if (machine->no_cdrom) {
3145 if (machine->no_sdcard) {
3149 if (display_type == DT_NOGRAPHIC) {
3150 if (default_parallel)
3151 add_device_config(DEV_PARALLEL, "null");
3152 if (default_serial && default_monitor) {
3153 add_device_config(DEV_SERIAL, "mon:stdio");
3154 } else if (default_virtcon && default_monitor) {
3155 add_device_config(DEV_VIRTCON, "mon:stdio");
3158 add_device_config(DEV_SERIAL, "stdio");
3159 if (default_virtcon)
3160 add_device_config(DEV_VIRTCON, "stdio");
3161 if (default_monitor)
3162 monitor_parse("stdio", "readline");
3166 add_device_config(DEV_SERIAL, "vc:80Cx24C");
3167 if (default_parallel)
3168 add_device_config(DEV_PARALLEL, "vc:80Cx24C");
3169 if (default_monitor)
3170 monitor_parse("vc:80Cx24C", "readline");
3171 if (default_virtcon)
3172 add_device_config(DEV_VIRTCON, "vc:80Cx24C");
3175 vga_interface_type = VGA_CIRRUS;
3179 if (qemu_opts_foreach(qemu_find_opts("chardev"), chardev_init_func, NULL, 1) != 0)
3181 #ifdef CONFIG_VIRTFS
3182 if (qemu_opts_foreach(qemu_find_opts("fsdev"), fsdev_init_func, NULL, 1) != 0) {
3189 if (pid_file && qemu_create_pidfile(pid_file) != 0) {
3194 /* init the memory */
3195 if (ram_size == 0) {
3196 ram_size = DEFAULT_RAM_SIZE * 1024 * 1024;
3199 configure_accelerator();
3201 qemu_init_cpu_loop();
3202 if (qemu_init_main_loop()) {
3203 fprintf(stderr, "qemu_init_main_loop failed\n");
3206 linux_boot = (kernel_filename != NULL);
3208 if (!linux_boot && *kernel_cmdline != '\0') {
3209 fprintf(stderr, "-append only allowed with -kernel option\n");
3213 if (!linux_boot && initrd_filename != NULL) {
3214 fprintf(stderr, "-initrd only allowed with -kernel option\n");
3218 os_set_line_buffering();
3220 if (init_timer_alarm() < 0) {
3221 fprintf(stderr, "could not initialize alarm timer\n");
3224 configure_icount(icount_option);
3226 if (net_init_clients() < 0) {
3230 /* init the bluetooth world */
3231 if (foreach_device_config(DEV_BT, bt_parse))
3234 if (!xen_enabled()) {
3235 /* On 32-bit hosts, QEMU is limited by virtual address space */
3236 if (ram_size > (2047 << 20) && HOST_LONG_BITS == 32) {
3237 fprintf(stderr, "qemu: at most 2047 MB RAM can be simulated\n");
3242 cpu_exec_init_all();
3244 bdrv_init_with_whitelist();
3248 /* open the virtual block devices */
3250 qemu_opts_foreach(qemu_find_opts("drive"), drive_enable_snapshot, NULL, 0);
3251 if (qemu_opts_foreach(qemu_find_opts("drive"), drive_init_func, &machine->use_scsi, 1) != 0)
3254 default_drive(default_cdrom, snapshot, machine->use_scsi,
3255 IF_DEFAULT, 2, CDROM_OPTS);
3256 default_drive(default_floppy, snapshot, machine->use_scsi,
3257 IF_FLOPPY, 0, FD_OPTS);
3258 default_drive(default_sdcard, snapshot, machine->use_scsi,
3261 register_savevm_live(NULL, "ram", 0, 4, NULL, ram_save_live, NULL,
3264 if (nb_numa_nodes > 0) {
3267 if (nb_numa_nodes > MAX_NODES) {
3268 nb_numa_nodes = MAX_NODES;
3271 /* If no memory size if given for any node, assume the default case
3272 * and distribute the available memory equally across all nodes
3274 for (i = 0; i < nb_numa_nodes; i++) {
3275 if (node_mem[i] != 0)
3278 if (i == nb_numa_nodes) {
3279 uint64_t usedmem = 0;
3281 /* On Linux, the each node's border has to be 8MB aligned,
3282 * the final node gets the rest.
3284 for (i = 0; i < nb_numa_nodes - 1; i++) {
3285 node_mem[i] = (ram_size / nb_numa_nodes) & ~((1 << 23UL) - 1);
3286 usedmem += node_mem[i];
3288 node_mem[i] = ram_size - usedmem;
3291 for (i = 0; i < nb_numa_nodes; i++) {
3292 if (node_cpumask[i] != 0)
3295 /* assigning the VCPUs round-robin is easier to implement, guest OSes
3296 * must cope with this anyway, because there are BIOSes out there in
3297 * real machines which also use this scheme.
3299 if (i == nb_numa_nodes) {
3300 for (i = 0; i < smp_cpus; i++) {
3301 node_cpumask[i % nb_numa_nodes] |= 1 << i;
3306 if (qemu_opts_foreach(qemu_find_opts("mon"), mon_init_func, NULL, 1) != 0) {
3310 if (foreach_device_config(DEV_SERIAL, serial_parse) < 0)
3312 if (foreach_device_config(DEV_PARALLEL, parallel_parse) < 0)
3314 if (foreach_device_config(DEV_VIRTCON, virtcon_parse) < 0)
3316 if (foreach_device_config(DEV_DEBUGCON, debugcon_parse) < 0)
3319 module_call_init(MODULE_INIT_DEVICE);
3321 if (qemu_opts_foreach(qemu_find_opts("device"), device_help_func, NULL, 0) != 0)
3325 i = select_watchdog(watchdog);
3327 exit (i == 1 ? 1 : 0);
3330 if (machine->compat_props) {
3331 qdev_prop_register_global_list(machine->compat_props);
3335 machine->init(ram_size, boot_devices,
3336 kernel_filename, kernel_cmdline, initrd_filename, cpu_model);
3338 cpu_synchronize_all_post_init();
3342 current_machine = machine;
3344 /* init USB devices */
3346 if (foreach_device_config(DEV_USB, usb_parse) < 0)
3350 /* init generic devices */
3351 if (qemu_opts_foreach(qemu_find_opts("device"), device_init_func, NULL, 1) != 0)
3354 net_check_clients();
3356 /* just use the first displaystate for the moment */
3357 ds = get_displaystate();
3361 if (display_type == DT_DEFAULT && !display_remote) {
3362 #if defined(CONFIG_SDL) || defined(CONFIG_COCOA)
3363 display_type = DT_SDL;
3364 #elif defined(CONFIG_VNC)
3365 vnc_display = "localhost:0,to=99";
3368 display_type = DT_NONE;
3373 /* init local displays */
3374 switch (display_type) {
3377 #if defined(CONFIG_CURSES)
3379 curses_display_init(ds, full_screen);
3382 #if defined(CONFIG_SDL)
3384 sdl_display_init(ds, full_screen, no_frame);
3386 #elif defined(CONFIG_COCOA)
3388 cocoa_display_init(ds, full_screen);
3395 /* must be after terminal init, SDL library changes signal handlers */
3396 os_setup_signal_handling();
3399 /* init remote displays */
3401 vnc_display_init(ds);
3402 if (vnc_display_open(ds, vnc_display) < 0)
3405 if (show_vnc_port) {
3406 printf("VNC server running on `%s'\n", vnc_display_local_addr(ds));
3411 if (using_spice && !qxl_enabled) {
3412 qemu_spice_display_init(ds);
3418 dcl = ds->listeners;
3419 while (dcl != NULL) {
3420 if (dcl->dpy_refresh != NULL) {
3421 ds->gui_timer = qemu_new_timer_ms(rt_clock, gui_update, ds);
3422 qemu_mod_timer(ds->gui_timer, qemu_get_clock_ms(rt_clock));
3427 text_consoles_set_display(ds);
3429 if (gdbstub_dev && gdbserver_start(gdbstub_dev) < 0) {
3430 fprintf(stderr, "qemu: could not open gdbserver on device '%s'\n",
3435 qdev_machine_creation_done();
3437 if (rom_load_all() != 0) {
3438 fprintf(stderr, "rom loading failed\n");
3442 /* TODO: once all bus devices are qdevified, this should be done
3443 * when bus is created by qdev.c */
3444 qemu_register_reset(qbus_reset_all_fn, sysbus_get_default());
3445 qemu_run_machine_init_done_notifiers();
3447 qemu_system_reset(VMRESET_SILENT);
3449 if (load_vmstate(loadvm) < 0) {
3455 runstate_set(RUN_STATE_INMIGRATE);
3456 int ret = qemu_start_incoming_migration(incoming);
3458 fprintf(stderr, "Migration failed. Exit code %s(%d), exiting.\n",
3462 } else if (autostart) {