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loop write in qemu_event_increment upon EINTR
[qemu/ar7.git] / vl.c
blob29f218987a4d4596c26cbf4ae1351833a02b2d85
1 /*
2 * QEMU System Emulator
3 *
4 * Copyright (c) 2003-2008 Fabrice Bellard
5 *
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:
12 *
13 * The above copyright notice and this permission notice shall be included in
14 * all copies or substantial portions of the Software.
15 *
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.
23 */
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
32 /* Needed early for CONFIG_BSD etc. */
33 #include "config-host.h"
34
35 #ifndef _WIN32
36 #include <libgen.h>
37 #include <pwd.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>
51 #ifdef CONFIG_BSD
52 #include <sys/stat.h>
53 #if defined(__FreeBSD__) || defined(__FreeBSD_kernel__) || defined(__DragonFly__)
54 #include <libutil.h>
55 #else
56 #include <util.h>
57 #endif
58 #else
59 #ifdef __linux__
60 #include <pty.h>
61 #include <malloc.h>
62 #include <linux/rtc.h>
63 #include <sys/prctl.h>
64
65 /* For the benefit of older linux systems which don't supply it,
66 we use a local copy of hpet.h. */
67 /* #include <linux/hpet.h> */
68 #include "hpet.h"
69
70 #include <linux/ppdev.h>
71 #include <linux/parport.h>
72 #endif
73 #ifdef __sun__
74 #include <sys/stat.h>
75 #include <sys/ethernet.h>
76 #include <sys/sockio.h>
77 #include <netinet/arp.h>
78 #include <netinet/in.h>
79 #include <netinet/in_systm.h>
80 #include <netinet/ip.h>
81 #include <netinet/ip_icmp.h> // must come after ip.h
82 #include <netinet/udp.h>
83 #include <netinet/tcp.h>
84 #include <net/if.h>
85 #include <syslog.h>
86 #include <stropts.h>
87 /* See MySQL bug #7156 (http://bugs.mysql.com/bug.php?id=7156) for
88 discussion about Solaris header problems */
89 extern int madvise(caddr_t, size_t, int);
90 #endif
91 #endif
92 #endif
93
94 #if defined(__OpenBSD__)
95 #include <util.h>
96 #endif
97
98 #if defined(CONFIG_VDE)
99 #include <libvdeplug.h>
100 #endif
101
102 #ifdef _WIN32
103 #include <windows.h>
104 #include <mmsystem.h>
105 #endif
106
107 #ifdef CONFIG_SDL
108 #if defined(__APPLE__) || defined(main)
109 #include <SDL.h>
110 int qemu_main(int argc, char **argv, char **envp);
111 int main(int argc, char **argv)
112 {
113 return qemu_main(argc, argv, NULL);
114 }
115 #undef main
116 #define main qemu_main
117 #endif
118 #endif /* CONFIG_SDL */
119
120 #ifdef CONFIG_COCOA
121 #undef main
122 #define main qemu_main
123 #endif /* CONFIG_COCOA */
124
125 #include "hw/hw.h"
126 #include "hw/boards.h"
127 #include "hw/usb.h"
128 #include "hw/pcmcia.h"
129 #include "hw/pc.h"
130 #include "hw/audiodev.h"
131 #include "hw/isa.h"
132 #include "hw/baum.h"
133 #include "hw/bt.h"
134 #include "hw/watchdog.h"
135 #include "hw/smbios.h"
136 #include "hw/xen.h"
137 #include "hw/qdev.h"
138 #include "hw/loader.h"
139 #include "bt-host.h"
140 #include "net.h"
141 #include "net/slirp.h"
142 #include "monitor.h"
143 #include "console.h"
144 #include "sysemu.h"
145 #include "gdbstub.h"
146 #include "qemu-timer.h"
147 #include "qemu-char.h"
148 #include "cache-utils.h"
149 #include "block.h"
150 #include "block_int.h"
151 #include "block-migration.h"
152 #include "dma.h"
153 #include "audio/audio.h"
154 #include "migration.h"
155 #include "kvm.h"
156 #include "balloon.h"
157 #include "qemu-option.h"
158 #include "qemu-config.h"
159 #include "qemu-objects.h"
160
161 #include "disas.h"
162
163 #include "exec-all.h"
164
165 #include "qemu_socket.h"
166
167 #include "slirp/libslirp.h"
168
169 #include "qemu-queue.h"
170
171 //#define DEBUG_NET
172 //#define DEBUG_SLIRP
173
174 #define DEFAULT_RAM_SIZE 128
175
176 #define MAX_VIRTIO_CONSOLES 1
177
178 static const char *data_dir;
179 const char *bios_name = NULL;
180 /* Note: drives_table[MAX_DRIVES] is a dummy block driver if none available
181 to store the VM snapshots */
182 struct drivelist drives = QTAILQ_HEAD_INITIALIZER(drives);
183 struct driveoptlist driveopts = QTAILQ_HEAD_INITIALIZER(driveopts);
184 enum vga_retrace_method vga_retrace_method = VGA_RETRACE_DUMB;
185 static DisplayState *display_state;
186 DisplayType display_type = DT_DEFAULT;
187 const char* keyboard_layout = NULL;
188 ram_addr_t ram_size;
189 int nb_nics;
190 NICInfo nd_table[MAX_NICS];
191 int vm_running;
192 int autostart;
193 static int rtc_utc = 1;
194 static int rtc_date_offset = -1; /* -1 means no change */
195 QEMUClock *rtc_clock;
196 int vga_interface_type = VGA_NONE;
197 #ifdef TARGET_SPARC
198 int graphic_width = 1024;
199 int graphic_height = 768;
200 int graphic_depth = 8;
201 #else
202 int graphic_width = 800;
203 int graphic_height = 600;
204 int graphic_depth = 15;
205 #endif
206 static int full_screen = 0;
207 #ifdef CONFIG_SDL
208 static int no_frame = 0;
209 #endif
210 int no_quit = 0;
211 CharDriverState *serial_hds[MAX_SERIAL_PORTS];
212 CharDriverState *parallel_hds[MAX_PARALLEL_PORTS];
213 CharDriverState *virtcon_hds[MAX_VIRTIO_CONSOLES];
214 #ifdef TARGET_I386
215 int win2k_install_hack = 0;
216 int rtc_td_hack = 0;
217 #endif
218 int usb_enabled = 0;
219 int singlestep = 0;
220 int smp_cpus = 1;
221 int max_cpus = 0;
222 int smp_cores = 1;
223 int smp_threads = 1;
224 const char *vnc_display;
225 int acpi_enabled = 1;
226 int no_hpet = 0;
227 int fd_bootchk = 1;
228 int no_reboot = 0;
229 int no_shutdown = 0;
230 int cursor_hide = 1;
231 int graphic_rotate = 0;
232 uint8_t irq0override = 1;
233 #ifndef _WIN32
234 int daemonize = 0;
235 #endif
236 const char *watchdog;
237 const char *option_rom[MAX_OPTION_ROMS];
238 int nb_option_roms;
239 int semihosting_enabled = 0;
240 #ifdef TARGET_ARM
241 int old_param = 0;
242 #endif
243 const char *qemu_name;
244 int alt_grab = 0;
245 int ctrl_grab = 0;
246 #if defined(TARGET_SPARC) || defined(TARGET_PPC)
247 unsigned int nb_prom_envs = 0;
248 const char *prom_envs[MAX_PROM_ENVS];
249 #endif
250 int boot_menu;
251
252 int nb_numa_nodes;
253 uint64_t node_mem[MAX_NODES];
254 uint64_t node_cpumask[MAX_NODES];
255
256 static CPUState *cur_cpu;
257 static CPUState *next_cpu;
258 static int timer_alarm_pending = 1;
259 /* Conversion factor from emulated instructions to virtual clock ticks. */
260 static int icount_time_shift;
261 /* Arbitrarily pick 1MIPS as the minimum allowable speed. */
262 #define MAX_ICOUNT_SHIFT 10
263 /* Compensate for varying guest execution speed. */
264 static int64_t qemu_icount_bias;
265 static QEMUTimer *icount_rt_timer;
266 static QEMUTimer *icount_vm_timer;
267 static QEMUTimer *nographic_timer;
268
269 uint8_t qemu_uuid[16];
270
271 static QEMUBootSetHandler *boot_set_handler;
272 static void *boot_set_opaque;
273
274 static int default_serial = 1;
275 static int default_parallel = 1;
276 static int default_virtcon = 1;
277 static int default_monitor = 1;
278 static int default_vga = 1;
279 static int default_floppy = 1;
280 static int default_cdrom = 1;
281 static int default_sdcard = 1;
282
283 static struct {
284 const char *driver;
285 int *flag;
286 } default_list[] = {
287 { .driver = "isa-serial", .flag = &default_serial },
288 { .driver = "isa-parallel", .flag = &default_parallel },
289 { .driver = "isa-fdc", .flag = &default_floppy },
290 { .driver = "ide-drive", .flag = &default_cdrom },
291 { .driver = "virtio-serial-pci", .flag = &default_virtcon },
292 { .driver = "virtio-serial-s390", .flag = &default_virtcon },
293 { .driver = "virtio-serial", .flag = &default_virtcon },
294 { .driver = "VGA", .flag = &default_vga },
295 { .driver = "cirrus-vga", .flag = &default_vga },
296 { .driver = "vmware-svga", .flag = &default_vga },
297 };
298
299 static int default_driver_check(QemuOpts *opts, void *opaque)
300 {
301 const char *driver = qemu_opt_get(opts, "driver");
302 int i;
303
304 if (!driver)
305 return 0;
306 for (i = 0; i < ARRAY_SIZE(default_list); i++) {
307 if (strcmp(default_list[i].driver, driver) != 0)
308 continue;
309 *(default_list[i].flag) = 0;
310 }
311 return 0;
312 }
313
314 /***********************************************************/
315 /* x86 ISA bus support */
316
317 target_phys_addr_t isa_mem_base = 0;
318 PicState2 *isa_pic;
319
320 /***********************************************************/
321 void hw_error(const char *fmt, ...)
322 {
323 va_list ap;
324 CPUState *env;
325
326 va_start(ap, fmt);
327 fprintf(stderr, "qemu: hardware error: ");
328 vfprintf(stderr, fmt, ap);
329 fprintf(stderr, "\n");
330 for(env = first_cpu; env != NULL; env = env->next_cpu) {
331 fprintf(stderr, "CPU #%d:\n", env->cpu_index);
332 #ifdef TARGET_I386
333 cpu_dump_state(env, stderr, fprintf, X86_DUMP_FPU);
334 #else
335 cpu_dump_state(env, stderr, fprintf, 0);
336 #endif
337 }
338 va_end(ap);
339 abort();
340 }
341
342 static void set_proc_name(const char *s)
343 {
344 #if defined(__linux__) && defined(PR_SET_NAME)
345 char name[16];
346 if (!s)
347 return;
348 name[sizeof(name) - 1] = 0;
349 strncpy(name, s, sizeof(name));
350 /* Could rewrite argv[0] too, but that's a bit more complicated.
351 This simple way is enough for `top'. */
352 prctl(PR_SET_NAME, name);
353 #endif
354 }
355
356 /***************/
357 /* ballooning */
358
359 static QEMUBalloonEvent *qemu_balloon_event;
360 void *qemu_balloon_event_opaque;
361
362 void qemu_add_balloon_handler(QEMUBalloonEvent *func, void *opaque)
363 {
364 qemu_balloon_event = func;
365 qemu_balloon_event_opaque = opaque;
366 }
367
368 int qemu_balloon(ram_addr_t target, MonitorCompletion cb, void *opaque)
369 {
370 if (qemu_balloon_event) {
371 qemu_balloon_event(qemu_balloon_event_opaque, target, cb, opaque);
372 return 1;
373 } else {
374 return 0;
375 }
376 }
377
378 int qemu_balloon_status(MonitorCompletion cb, void *opaque)
379 {
380 if (qemu_balloon_event) {
381 qemu_balloon_event(qemu_balloon_event_opaque, 0, cb, opaque);
382 return 1;
383 } else {
384 return 0;
385 }
386 }
387
388
389 /***********************************************************/
390 /* real time host monotonic timer */
391
392 /* compute with 96 bit intermediate result: (a*b)/c */
393 uint64_t muldiv64(uint64_t a, uint32_t b, uint32_t c)
394 {
395 union {
396 uint64_t ll;
397 struct {
398 #ifdef HOST_WORDS_BIGENDIAN
399 uint32_t high, low;
400 #else
401 uint32_t low, high;
402 #endif
403 } l;
404 } u, res;
405 uint64_t rl, rh;
406
407 u.ll = a;
408 rl = (uint64_t)u.l.low * (uint64_t)b;
409 rh = (uint64_t)u.l.high * (uint64_t)b;
410 rh += (rl >> 32);
411 res.l.high = rh / c;
412 res.l.low = (((rh % c) << 32) + (rl & 0xffffffff)) / c;
413 return res.ll;
414 }
415
416 static int64_t get_clock_realtime(void)
417 {
418 struct timeval tv;
419
420 gettimeofday(&tv, NULL);
421 return tv.tv_sec * 1000000000LL + (tv.tv_usec * 1000);
422 }
423
424 #ifdef WIN32
425
426 static int64_t clock_freq;
427
428 static void init_get_clock(void)
429 {
430 LARGE_INTEGER freq;
431 int ret;
432 ret = QueryPerformanceFrequency(&freq);
433 if (ret == 0) {
434 fprintf(stderr, "Could not calibrate ticks\n");
435 exit(1);
436 }
437 clock_freq = freq.QuadPart;
438 }
439
440 static int64_t get_clock(void)
441 {
442 LARGE_INTEGER ti;
443 QueryPerformanceCounter(&ti);
444 return muldiv64(ti.QuadPart, get_ticks_per_sec(), clock_freq);
445 }
446
447 #else
448
449 static int use_rt_clock;
450
451 static void init_get_clock(void)
452 {
453 use_rt_clock = 0;
454 #if defined(__linux__) || (defined(__FreeBSD__) && __FreeBSD_version >= 500000) \
455 || defined(__DragonFly__) || defined(__FreeBSD_kernel__)
456 {
457 struct timespec ts;
458 if (clock_gettime(CLOCK_MONOTONIC, &ts) == 0) {
459 use_rt_clock = 1;
460 }
461 }
462 #endif
463 }
464
465 static int64_t get_clock(void)
466 {
467 #if defined(__linux__) || (defined(__FreeBSD__) && __FreeBSD_version >= 500000) \
468 || defined(__DragonFly__) || defined(__FreeBSD_kernel__)
469 if (use_rt_clock) {
470 struct timespec ts;
471 clock_gettime(CLOCK_MONOTONIC, &ts);
472 return ts.tv_sec * 1000000000LL + ts.tv_nsec;
473 } else
474 #endif
475 {
476 /* XXX: using gettimeofday leads to problems if the date
477 changes, so it should be avoided. */
478 return get_clock_realtime();
479 }
480 }
481 #endif
482
483 /* Return the virtual CPU time, based on the instruction counter. */
484 static int64_t cpu_get_icount(void)
485 {
486 int64_t icount;
487 CPUState *env = cpu_single_env;;
488 icount = qemu_icount;
489 if (env) {
490 if (!can_do_io(env))
491 fprintf(stderr, "Bad clock read\n");
492 icount -= (env->icount_decr.u16.low + env->icount_extra);
493 }
494 return qemu_icount_bias + (icount << icount_time_shift);
495 }
496
497 /***********************************************************/
498 /* guest cycle counter */
499
500 typedef struct TimersState {
501 int64_t cpu_ticks_prev;
502 int64_t cpu_ticks_offset;
503 int64_t cpu_clock_offset;
504 int32_t cpu_ticks_enabled;
505 int64_t dummy;
506 } TimersState;
507
508 TimersState timers_state;
509
510 /* return the host CPU cycle counter and handle stop/restart */
511 int64_t cpu_get_ticks(void)
512 {
513 if (use_icount) {
514 return cpu_get_icount();
515 }
516 if (!timers_state.cpu_ticks_enabled) {
517 return timers_state.cpu_ticks_offset;
518 } else {
519 int64_t ticks;
520 ticks = cpu_get_real_ticks();
521 if (timers_state.cpu_ticks_prev > ticks) {
522 /* Note: non increasing ticks may happen if the host uses
523 software suspend */
524 timers_state.cpu_ticks_offset += timers_state.cpu_ticks_prev - ticks;
525 }
526 timers_state.cpu_ticks_prev = ticks;
527 return ticks + timers_state.cpu_ticks_offset;
528 }
529 }
530
531 /* return the host CPU monotonic timer and handle stop/restart */
532 static int64_t cpu_get_clock(void)
533 {
534 int64_t ti;
535 if (!timers_state.cpu_ticks_enabled) {
536 return timers_state.cpu_clock_offset;
537 } else {
538 ti = get_clock();
539 return ti + timers_state.cpu_clock_offset;
540 }
541 }
542
543 /* enable cpu_get_ticks() */
544 void cpu_enable_ticks(void)
545 {
546 if (!timers_state.cpu_ticks_enabled) {
547 timers_state.cpu_ticks_offset -= cpu_get_real_ticks();
548 timers_state.cpu_clock_offset -= get_clock();
549 timers_state.cpu_ticks_enabled = 1;
550 }
551 }
552
553 /* disable cpu_get_ticks() : the clock is stopped. You must not call
554 cpu_get_ticks() after that. */
555 void cpu_disable_ticks(void)
556 {
557 if (timers_state.cpu_ticks_enabled) {
558 timers_state.cpu_ticks_offset = cpu_get_ticks();
559 timers_state.cpu_clock_offset = cpu_get_clock();
560 timers_state.cpu_ticks_enabled = 0;
561 }
562 }
563
564 /***********************************************************/
565 /* timers */
566
567 #define QEMU_CLOCK_REALTIME 0
568 #define QEMU_CLOCK_VIRTUAL 1
569 #define QEMU_CLOCK_HOST 2
570
571 struct QEMUClock {
572 int type;
573 /* XXX: add frequency */
574 };
575
576 struct QEMUTimer {
577 QEMUClock *clock;
578 int64_t expire_time;
579 QEMUTimerCB *cb;
580 void *opaque;
581 struct QEMUTimer *next;
582 };
583
584 struct qemu_alarm_timer {
585 char const *name;
586 unsigned int flags;
587
588 int (*start)(struct qemu_alarm_timer *t);
589 void (*stop)(struct qemu_alarm_timer *t);
590 void (*rearm)(struct qemu_alarm_timer *t);
591 void *priv;
592 };
593
594 #define ALARM_FLAG_DYNTICKS 0x1
595 #define ALARM_FLAG_EXPIRED 0x2
596
597 static inline int alarm_has_dynticks(struct qemu_alarm_timer *t)
598 {
599 return t && (t->flags & ALARM_FLAG_DYNTICKS);
600 }
601
602 static void qemu_rearm_alarm_timer(struct qemu_alarm_timer *t)
603 {
604 if (!alarm_has_dynticks(t))
605 return;
606
607 t->rearm(t);
608 }
609
610 /* TODO: MIN_TIMER_REARM_US should be optimized */
611 #define MIN_TIMER_REARM_US 250
612
613 static struct qemu_alarm_timer *alarm_timer;
614
615 #ifdef _WIN32
616
617 struct qemu_alarm_win32 {
618 MMRESULT timerId;
619 unsigned int period;
620 } alarm_win32_data = {0, -1};
621
622 static int win32_start_timer(struct qemu_alarm_timer *t);
623 static void win32_stop_timer(struct qemu_alarm_timer *t);
624 static void win32_rearm_timer(struct qemu_alarm_timer *t);
625
626 #else
627
628 static int unix_start_timer(struct qemu_alarm_timer *t);
629 static void unix_stop_timer(struct qemu_alarm_timer *t);
630
631 #ifdef __linux__
632
633 static int dynticks_start_timer(struct qemu_alarm_timer *t);
634 static void dynticks_stop_timer(struct qemu_alarm_timer *t);
635 static void dynticks_rearm_timer(struct qemu_alarm_timer *t);
636
637 static int hpet_start_timer(struct qemu_alarm_timer *t);
638 static void hpet_stop_timer(struct qemu_alarm_timer *t);
639
640 static int rtc_start_timer(struct qemu_alarm_timer *t);
641 static void rtc_stop_timer(struct qemu_alarm_timer *t);
642
643 #endif /* __linux__ */
644
645 #endif /* _WIN32 */
646
647 /* Correlation between real and virtual time is always going to be
648 fairly approximate, so ignore small variation.
649 When the guest is idle real and virtual time will be aligned in
650 the IO wait loop. */
651 #define ICOUNT_WOBBLE (get_ticks_per_sec() / 10)
652
653 static void icount_adjust(void)
654 {
655 int64_t cur_time;
656 int64_t cur_icount;
657 int64_t delta;
658 static int64_t last_delta;
659 /* If the VM is not running, then do nothing. */
660 if (!vm_running)
661 return;
662
663 cur_time = cpu_get_clock();
664 cur_icount = qemu_get_clock(vm_clock);
665 delta = cur_icount - cur_time;
666 /* FIXME: This is a very crude algorithm, somewhat prone to oscillation. */
667 if (delta > 0
668 && last_delta + ICOUNT_WOBBLE < delta * 2
669 && icount_time_shift > 0) {
670 /* The guest is getting too far ahead. Slow time down. */
671 icount_time_shift--;
672 }
673 if (delta < 0
674 && last_delta - ICOUNT_WOBBLE > delta * 2
675 && icount_time_shift < MAX_ICOUNT_SHIFT) {
676 /* The guest is getting too far behind. Speed time up. */
677 icount_time_shift++;
678 }
679 last_delta = delta;
680 qemu_icount_bias = cur_icount - (qemu_icount << icount_time_shift);
681 }
682
683 static void icount_adjust_rt(void * opaque)
684 {
685 qemu_mod_timer(icount_rt_timer,
686 qemu_get_clock(rt_clock) + 1000);
687 icount_adjust();
688 }
689
690 static void icount_adjust_vm(void * opaque)
691 {
692 qemu_mod_timer(icount_vm_timer,
693 qemu_get_clock(vm_clock) + get_ticks_per_sec() / 10);
694 icount_adjust();
695 }
696
697 static void init_icount_adjust(void)
698 {
699 /* Have both realtime and virtual time triggers for speed adjustment.
700 The realtime trigger catches emulated time passing too slowly,
701 the virtual time trigger catches emulated time passing too fast.
702 Realtime triggers occur even when idle, so use them less frequently
703 than VM triggers. */
704 icount_rt_timer = qemu_new_timer(rt_clock, icount_adjust_rt, NULL);
705 qemu_mod_timer(icount_rt_timer,
706 qemu_get_clock(rt_clock) + 1000);
707 icount_vm_timer = qemu_new_timer(vm_clock, icount_adjust_vm, NULL);
708 qemu_mod_timer(icount_vm_timer,
709 qemu_get_clock(vm_clock) + get_ticks_per_sec() / 10);
710 }
711
712 static struct qemu_alarm_timer alarm_timers[] = {
713 #ifndef _WIN32
714 #ifdef __linux__
715 {"dynticks", ALARM_FLAG_DYNTICKS, dynticks_start_timer,
716 dynticks_stop_timer, dynticks_rearm_timer, NULL},
717 /* HPET - if available - is preferred */
718 {"hpet", 0, hpet_start_timer, hpet_stop_timer, NULL, NULL},
719 /* ...otherwise try RTC */
720 {"rtc", 0, rtc_start_timer, rtc_stop_timer, NULL, NULL},
721 #endif
722 {"unix", 0, unix_start_timer, unix_stop_timer, NULL, NULL},
723 #else
724 {"dynticks", ALARM_FLAG_DYNTICKS, win32_start_timer,
725 win32_stop_timer, win32_rearm_timer, &alarm_win32_data},
726 {"win32", 0, win32_start_timer,
727 win32_stop_timer, NULL, &alarm_win32_data},
728 #endif
729 {NULL, }
730 };
731
732 static void show_available_alarms(void)
733 {
734 int i;
735
736 printf("Available alarm timers, in order of precedence:\n");
737 for (i = 0; alarm_timers[i].name; i++)
738 printf("%s\n", alarm_timers[i].name);
739 }
740
741 static void configure_alarms(char const *opt)
742 {
743 int i;
744 int cur = 0;
745 int count = ARRAY_SIZE(alarm_timers) - 1;
746 char *arg;
747 char *name;
748 struct qemu_alarm_timer tmp;
749
750 if (!strcmp(opt, "?")) {
751 show_available_alarms();
752 exit(0);
753 }
754
755 arg = qemu_strdup(opt);
756
757 /* Reorder the array */
758 name = strtok(arg, ",");
759 while (name) {
760 for (i = 0; i < count && alarm_timers[i].name; i++) {
761 if (!strcmp(alarm_timers[i].name, name))
762 break;
763 }
764
765 if (i == count) {
766 fprintf(stderr, "Unknown clock %s\n", name);
767 goto next;
768 }
769
770 if (i < cur)
771 /* Ignore */
772 goto next;
773
774 /* Swap */
775 tmp = alarm_timers[i];
776 alarm_timers[i] = alarm_timers[cur];
777 alarm_timers[cur] = tmp;
778
779 cur++;
780 next:
781 name = strtok(NULL, ",");
782 }
783
784 qemu_free(arg);
785
786 if (cur) {
787 /* Disable remaining timers */
788 for (i = cur; i < count; i++)
789 alarm_timers[i].name = NULL;
790 } else {
791 show_available_alarms();
792 exit(1);
793 }
794 }
795
796 #define QEMU_NUM_CLOCKS 3
797
798 QEMUClock *rt_clock;
799 QEMUClock *vm_clock;
800 QEMUClock *host_clock;
801
802 static QEMUTimer *active_timers[QEMU_NUM_CLOCKS];
803
804 static QEMUClock *qemu_new_clock(int type)
805 {
806 QEMUClock *clock;
807 clock = qemu_mallocz(sizeof(QEMUClock));
808 clock->type = type;
809 return clock;
810 }
811
812 QEMUTimer *qemu_new_timer(QEMUClock *clock, QEMUTimerCB *cb, void *opaque)
813 {
814 QEMUTimer *ts;
815
816 ts = qemu_mallocz(sizeof(QEMUTimer));
817 ts->clock = clock;
818 ts->cb = cb;
819 ts->opaque = opaque;
820 return ts;
821 }
822
823 void qemu_free_timer(QEMUTimer *ts)
824 {
825 qemu_free(ts);
826 }
827
828 /* stop a timer, but do not dealloc it */
829 void qemu_del_timer(QEMUTimer *ts)
830 {
831 QEMUTimer **pt, *t;
832
833 /* NOTE: this code must be signal safe because
834 qemu_timer_expired() can be called from a signal. */
835 pt = &active_timers[ts->clock->type];
836 for(;;) {
837 t = *pt;
838 if (!t)
839 break;
840 if (t == ts) {
841 *pt = t->next;
842 break;
843 }
844 pt = &t->next;
845 }
846 }
847
848 /* modify the current timer so that it will be fired when current_time
849 >= expire_time. The corresponding callback will be called. */
850 void qemu_mod_timer(QEMUTimer *ts, int64_t expire_time)
851 {
852 QEMUTimer **pt, *t;
853
854 qemu_del_timer(ts);
855
856 /* add the timer in the sorted list */
857 /* NOTE: this code must be signal safe because
858 qemu_timer_expired() can be called from a signal. */
859 pt = &active_timers[ts->clock->type];
860 for(;;) {
861 t = *pt;
862 if (!t)
863 break;
864 if (t->expire_time > expire_time)
865 break;
866 pt = &t->next;
867 }
868 ts->expire_time = expire_time;
869 ts->next = *pt;
870 *pt = ts;
871
872 /* Rearm if necessary */
873 if (pt == &active_timers[ts->clock->type]) {
874 if ((alarm_timer->flags & ALARM_FLAG_EXPIRED) == 0) {
875 qemu_rearm_alarm_timer(alarm_timer);
876 }
877 /* Interrupt execution to force deadline recalculation. */
878 if (use_icount)
879 qemu_notify_event();
880 }
881 }
882
883 int qemu_timer_pending(QEMUTimer *ts)
884 {
885 QEMUTimer *t;
886 for(t = active_timers[ts->clock->type]; t != NULL; t = t->next) {
887 if (t == ts)
888 return 1;
889 }
890 return 0;
891 }
892
893 int qemu_timer_expired(QEMUTimer *timer_head, int64_t current_time)
894 {
895 if (!timer_head)
896 return 0;
897 return (timer_head->expire_time <= current_time);
898 }
899
900 static void qemu_run_timers(QEMUTimer **ptimer_head, int64_t current_time)
901 {
902 QEMUTimer *ts;
903
904 for(;;) {
905 ts = *ptimer_head;
906 if (!ts || ts->expire_time > current_time)
907 break;
908 /* remove timer from the list before calling the callback */
909 *ptimer_head = ts->next;
910 ts->next = NULL;
911
912 /* run the callback (the timer list can be modified) */
913 ts->cb(ts->opaque);
914 }
915 }
916
917 int64_t qemu_get_clock(QEMUClock *clock)
918 {
919 switch(clock->type) {
920 case QEMU_CLOCK_REALTIME:
921 return get_clock() / 1000000;
922 default:
923 case QEMU_CLOCK_VIRTUAL:
924 if (use_icount) {
925 return cpu_get_icount();
926 } else {
927 return cpu_get_clock();
928 }
929 case QEMU_CLOCK_HOST:
930 return get_clock_realtime();
931 }
932 }
933
934 int64_t qemu_get_clock_ns(QEMUClock *clock)
935 {
936 switch(clock->type) {
937 case QEMU_CLOCK_REALTIME:
938 return get_clock();
939 default:
940 case QEMU_CLOCK_VIRTUAL:
941 if (use_icount) {
942 return cpu_get_icount();
943 } else {
944 return cpu_get_clock();
945 }
946 case QEMU_CLOCK_HOST:
947 return get_clock_realtime();
948 }
949 }
950
951 static void init_clocks(void)
952 {
953 init_get_clock();
954 rt_clock = qemu_new_clock(QEMU_CLOCK_REALTIME);
955 vm_clock = qemu_new_clock(QEMU_CLOCK_VIRTUAL);
956 host_clock = qemu_new_clock(QEMU_CLOCK_HOST);
957
958 rtc_clock = host_clock;
959 }
960
961 /* save a timer */
962 void qemu_put_timer(QEMUFile *f, QEMUTimer *ts)
963 {
964 uint64_t expire_time;
965
966 if (qemu_timer_pending(ts)) {
967 expire_time = ts->expire_time;
968 } else {
969 expire_time = -1;
970 }
971 qemu_put_be64(f, expire_time);
972 }
973
974 void qemu_get_timer(QEMUFile *f, QEMUTimer *ts)
975 {
976 uint64_t expire_time;
977
978 expire_time = qemu_get_be64(f);
979 if (expire_time != -1) {
980 qemu_mod_timer(ts, expire_time);
981 } else {
982 qemu_del_timer(ts);
983 }
984 }
985
986 static const VMStateDescription vmstate_timers = {
987 .name = "timer",
988 .version_id = 2,
989 .minimum_version_id = 1,
990 .minimum_version_id_old = 1,
991 .fields = (VMStateField []) {
992 VMSTATE_INT64(cpu_ticks_offset, TimersState),
993 VMSTATE_INT64(dummy, TimersState),
994 VMSTATE_INT64_V(cpu_clock_offset, TimersState, 2),
995 VMSTATE_END_OF_LIST()
996 }
997 };
998
999 static void qemu_event_increment(void);
1000
1001 #ifdef _WIN32
1002 static void CALLBACK host_alarm_handler(UINT uTimerID, UINT uMsg,
1003 DWORD_PTR dwUser, DWORD_PTR dw1,
1004 DWORD_PTR dw2)
1005 #else
1006 static void host_alarm_handler(int host_signum)
1007 #endif
1008 {
1009 #if 0
1010 #define DISP_FREQ 1000
1011 {
1012 static int64_t delta_min = INT64_MAX;
1013 static int64_t delta_max, delta_cum, last_clock, delta, ti;
1014 static int count;
1015 ti = qemu_get_clock(vm_clock);
1016 if (last_clock != 0) {
1017 delta = ti - last_clock;
1018 if (delta < delta_min)
1019 delta_min = delta;
1020 if (delta > delta_max)
1021 delta_max = delta;
1022 delta_cum += delta;
1023 if (++count == DISP_FREQ) {
1024 printf("timer: min=%" PRId64 " us max=%" PRId64 " us avg=%" PRId64 " us avg_freq=%0.3f Hz\n",
1025 muldiv64(delta_min, 1000000, get_ticks_per_sec()),
1026 muldiv64(delta_max, 1000000, get_ticks_per_sec()),
1027 muldiv64(delta_cum, 1000000 / DISP_FREQ, get_ticks_per_sec()),
1028 (double)get_ticks_per_sec() / ((double)delta_cum / DISP_FREQ));
1029 count = 0;
1030 delta_min = INT64_MAX;
1031 delta_max = 0;
1032 delta_cum = 0;
1033 }
1034 }
1035 last_clock = ti;
1036 }
1037 #endif
1038 if (alarm_has_dynticks(alarm_timer) ||
1039 (!use_icount &&
1040 qemu_timer_expired(active_timers[QEMU_CLOCK_VIRTUAL],
1041 qemu_get_clock(vm_clock))) ||
1042 qemu_timer_expired(active_timers[QEMU_CLOCK_REALTIME],
1043 qemu_get_clock(rt_clock)) ||
1044 qemu_timer_expired(active_timers[QEMU_CLOCK_HOST],
1045 qemu_get_clock(host_clock))) {
1046 qemu_event_increment();
1047 if (alarm_timer) alarm_timer->flags |= ALARM_FLAG_EXPIRED;
1048
1049 #ifndef CONFIG_IOTHREAD
1050 if (next_cpu) {
1051 /* stop the currently executing cpu because a timer occured */
1052 cpu_exit(next_cpu);
1053 }
1054 #endif
1055 timer_alarm_pending = 1;
1056 qemu_notify_event();
1057 }
1058 }
1059
1060 static int64_t qemu_next_deadline(void)
1061 {
1062 /* To avoid problems with overflow limit this to 2^32. */
1063 int64_t delta = INT32_MAX;
1064
1065 if (active_timers[QEMU_CLOCK_VIRTUAL]) {
1066 delta = active_timers[QEMU_CLOCK_VIRTUAL]->expire_time -
1067 qemu_get_clock(vm_clock);
1068 }
1069 if (active_timers[QEMU_CLOCK_HOST]) {
1070 int64_t hdelta = active_timers[QEMU_CLOCK_HOST]->expire_time -
1071 qemu_get_clock(host_clock);
1072 if (hdelta < delta)
1073 delta = hdelta;
1074 }
1075
1076 if (delta < 0)
1077 delta = 0;
1078
1079 return delta;
1080 }
1081
1082 #if defined(__linux__)
1083 static uint64_t qemu_next_deadline_dyntick(void)
1084 {
1085 int64_t delta;
1086 int64_t rtdelta;
1087
1088 if (use_icount)
1089 delta = INT32_MAX;
1090 else
1091 delta = (qemu_next_deadline() + 999) / 1000;
1092
1093 if (active_timers[QEMU_CLOCK_REALTIME]) {
1094 rtdelta = (active_timers[QEMU_CLOCK_REALTIME]->expire_time -
1095 qemu_get_clock(rt_clock))*1000;
1096 if (rtdelta < delta)
1097 delta = rtdelta;
1098 }
1099
1100 if (delta < MIN_TIMER_REARM_US)
1101 delta = MIN_TIMER_REARM_US;
1102
1103 return delta;
1104 }
1105 #endif
1106
1107 #ifndef _WIN32
1108
1109 /* Sets a specific flag */
1110 static int fcntl_setfl(int fd, int flag)
1111 {
1112 int flags;
1113
1114 flags = fcntl(fd, F_GETFL);
1115 if (flags == -1)
1116 return -errno;
1117
1118 if (fcntl(fd, F_SETFL, flags | flag) == -1)
1119 return -errno;
1120
1121 return 0;
1122 }
1123
1124 #if defined(__linux__)
1125
1126 #define RTC_FREQ 1024
1127
1128 static void enable_sigio_timer(int fd)
1129 {
1130 struct sigaction act;
1131
1132 /* timer signal */
1133 sigfillset(&act.sa_mask);
1134 act.sa_flags = 0;
1135 act.sa_handler = host_alarm_handler;
1136
1137 sigaction(SIGIO, &act, NULL);
1138 fcntl_setfl(fd, O_ASYNC);
1139 fcntl(fd, F_SETOWN, getpid());
1140 }
1141
1142 static int hpet_start_timer(struct qemu_alarm_timer *t)
1143 {
1144 struct hpet_info info;
1145 int r, fd;
1146
1147 fd = qemu_open("/dev/hpet", O_RDONLY);
1148 if (fd < 0)
1149 return -1;
1150
1151 /* Set frequency */
1152 r = ioctl(fd, HPET_IRQFREQ, RTC_FREQ);
1153 if (r < 0) {
1154 fprintf(stderr, "Could not configure '/dev/hpet' to have a 1024Hz timer. This is not a fatal\n"
1155 "error, but for better emulation accuracy type:\n"
1156 "'echo 1024 > /proc/sys/dev/hpet/max-user-freq' as root.\n");
1157 goto fail;
1158 }
1159
1160 /* Check capabilities */
1161 r = ioctl(fd, HPET_INFO, &info);
1162 if (r < 0)
1163 goto fail;
1164
1165 /* Enable periodic mode */
1166 r = ioctl(fd, HPET_EPI, 0);
1167 if (info.hi_flags && (r < 0))
1168 goto fail;
1169
1170 /* Enable interrupt */
1171 r = ioctl(fd, HPET_IE_ON, 0);
1172 if (r < 0)
1173 goto fail;
1174
1175 enable_sigio_timer(fd);
1176 t->priv = (void *)(long)fd;
1177
1178 return 0;
1179 fail:
1180 close(fd);
1181 return -1;
1182 }
1183
1184 static void hpet_stop_timer(struct qemu_alarm_timer *t)
1185 {
1186 int fd = (long)t->priv;
1187
1188 close(fd);
1189 }
1190
1191 static int rtc_start_timer(struct qemu_alarm_timer *t)
1192 {
1193 int rtc_fd;
1194 unsigned long current_rtc_freq = 0;
1195
1196 TFR(rtc_fd = qemu_open("/dev/rtc", O_RDONLY));
1197 if (rtc_fd < 0)
1198 return -1;
1199 ioctl(rtc_fd, RTC_IRQP_READ, &current_rtc_freq);
1200 if (current_rtc_freq != RTC_FREQ &&
1201 ioctl(rtc_fd, RTC_IRQP_SET, RTC_FREQ) < 0) {
1202 fprintf(stderr, "Could not configure '/dev/rtc' to have a 1024 Hz timer. This is not a fatal\n"
1203 "error, but for better emulation accuracy either use a 2.6 host Linux kernel or\n"
1204 "type 'echo 1024 > /proc/sys/dev/rtc/max-user-freq' as root.\n");
1205 goto fail;
1206 }
1207 if (ioctl(rtc_fd, RTC_PIE_ON, 0) < 0) {
1208 fail:
1209 close(rtc_fd);
1210 return -1;
1211 }
1212
1213 enable_sigio_timer(rtc_fd);
1214
1215 t->priv = (void *)(long)rtc_fd;
1216
1217 return 0;
1218 }
1219
1220 static void rtc_stop_timer(struct qemu_alarm_timer *t)
1221 {
1222 int rtc_fd = (long)t->priv;
1223
1224 close(rtc_fd);
1225 }
1226
1227 static int dynticks_start_timer(struct qemu_alarm_timer *t)
1228 {
1229 struct sigevent ev;
1230 timer_t host_timer;
1231 struct sigaction act;
1232
1233 sigfillset(&act.sa_mask);
1234 act.sa_flags = 0;
1235 act.sa_handler = host_alarm_handler;
1236
1237 sigaction(SIGALRM, &act, NULL);
1238
1239 /*
1240 * Initialize ev struct to 0 to avoid valgrind complaining
1241 * about uninitialized data in timer_create call
1242 */
1243 memset(&ev, 0, sizeof(ev));
1244 ev.sigev_value.sival_int = 0;
1245 ev.sigev_notify = SIGEV_SIGNAL;
1246 ev.sigev_signo = SIGALRM;
1247
1248 if (timer_create(CLOCK_REALTIME, &ev, &host_timer)) {
1249 perror("timer_create");
1250
1251 /* disable dynticks */
1252 fprintf(stderr, "Dynamic Ticks disabled\n");
1253
1254 return -1;
1255 }
1256
1257 t->priv = (void *)(long)host_timer;
1258
1259 return 0;
1260 }
1261
1262 static void dynticks_stop_timer(struct qemu_alarm_timer *t)
1263 {
1264 timer_t host_timer = (timer_t)(long)t->priv;
1265
1266 timer_delete(host_timer);
1267 }
1268
1269 static void dynticks_rearm_timer(struct qemu_alarm_timer *t)
1270 {
1271 timer_t host_timer = (timer_t)(long)t->priv;
1272 struct itimerspec timeout;
1273 int64_t nearest_delta_us = INT64_MAX;
1274 int64_t current_us;
1275
1276 if (!active_timers[QEMU_CLOCK_REALTIME] &&
1277 !active_timers[QEMU_CLOCK_VIRTUAL] &&
1278 !active_timers[QEMU_CLOCK_HOST])
1279 return;
1280
1281 nearest_delta_us = qemu_next_deadline_dyntick();
1282
1283 /* check whether a timer is already running */
1284 if (timer_gettime(host_timer, &timeout)) {
1285 perror("gettime");
1286 fprintf(stderr, "Internal timer error: aborting\n");
1287 exit(1);
1288 }
1289 current_us = timeout.it_value.tv_sec * 1000000 + timeout.it_value.tv_nsec/1000;
1290 if (current_us && current_us <= nearest_delta_us)
1291 return;
1292
1293 timeout.it_interval.tv_sec = 0;
1294 timeout.it_interval.tv_nsec = 0; /* 0 for one-shot timer */
1295 timeout.it_value.tv_sec = nearest_delta_us / 1000000;
1296 timeout.it_value.tv_nsec = (nearest_delta_us % 1000000) * 1000;
1297 if (timer_settime(host_timer, 0 /* RELATIVE */, &timeout, NULL)) {
1298 perror("settime");
1299 fprintf(stderr, "Internal timer error: aborting\n");
1300 exit(1);
1301 }
1302 }
1303
1304 #endif /* defined(__linux__) */
1305
1306 static int unix_start_timer(struct qemu_alarm_timer *t)
1307 {
1308 struct sigaction act;
1309 struct itimerval itv;
1310 int err;
1311
1312 /* timer signal */
1313 sigfillset(&act.sa_mask);
1314 act.sa_flags = 0;
1315 act.sa_handler = host_alarm_handler;
1316
1317 sigaction(SIGALRM, &act, NULL);
1318
1319 itv.it_interval.tv_sec = 0;
1320 /* for i386 kernel 2.6 to get 1 ms */
1321 itv.it_interval.tv_usec = 999;
1322 itv.it_value.tv_sec = 0;
1323 itv.it_value.tv_usec = 10 * 1000;
1324
1325 err = setitimer(ITIMER_REAL, &itv, NULL);
1326 if (err)
1327 return -1;
1328
1329 return 0;
1330 }
1331
1332 static void unix_stop_timer(struct qemu_alarm_timer *t)
1333 {
1334 struct itimerval itv;
1335
1336 memset(&itv, 0, sizeof(itv));
1337 setitimer(ITIMER_REAL, &itv, NULL);
1338 }
1339
1340 #endif /* !defined(_WIN32) */
1341
1342
1343 #ifdef _WIN32
1344
1345 static int win32_start_timer(struct qemu_alarm_timer *t)
1346 {
1347 TIMECAPS tc;
1348 struct qemu_alarm_win32 *data = t->priv;
1349 UINT flags;
1350
1351 memset(&tc, 0, sizeof(tc));
1352 timeGetDevCaps(&tc, sizeof(tc));
1353
1354 if (data->period < tc.wPeriodMin)
1355 data->period = tc.wPeriodMin;
1356
1357 timeBeginPeriod(data->period);
1358
1359 flags = TIME_CALLBACK_FUNCTION;
1360 if (alarm_has_dynticks(t))
1361 flags |= TIME_ONESHOT;
1362 else
1363 flags |= TIME_PERIODIC;
1364
1365 data->timerId = timeSetEvent(1, // interval (ms)
1366 data->period, // resolution
1367 host_alarm_handler, // function
1368 (DWORD)t, // parameter
1369 flags);
1370
1371 if (!data->timerId) {
1372 fprintf(stderr, "Failed to initialize win32 alarm timer: %ld\n",
1373 GetLastError());
1374 timeEndPeriod(data->period);
1375 return -1;
1376 }
1377
1378 return 0;
1379 }
1380
1381 static void win32_stop_timer(struct qemu_alarm_timer *t)
1382 {
1383 struct qemu_alarm_win32 *data = t->priv;
1384
1385 timeKillEvent(data->timerId);
1386 timeEndPeriod(data->period);
1387 }
1388
1389 static void win32_rearm_timer(struct qemu_alarm_timer *t)
1390 {
1391 struct qemu_alarm_win32 *data = t->priv;
1392
1393 if (!active_timers[QEMU_CLOCK_REALTIME] &&
1394 !active_timers[QEMU_CLOCK_VIRTUAL] &&
1395 !active_timers[QEMU_CLOCK_HOST])
1396 return;
1397
1398 timeKillEvent(data->timerId);
1399
1400 data->timerId = timeSetEvent(1,
1401 data->period,
1402 host_alarm_handler,
1403 (DWORD)t,
1404 TIME_ONESHOT | TIME_PERIODIC);
1405
1406 if (!data->timerId) {
1407 fprintf(stderr, "Failed to re-arm win32 alarm timer %ld\n",
1408 GetLastError());
1409
1410 timeEndPeriod(data->period);
1411 exit(1);
1412 }
1413 }
1414
1415 #endif /* _WIN32 */
1416
1417 static int init_timer_alarm(void)
1418 {
1419 struct qemu_alarm_timer *t = NULL;
1420 int i, err = -1;
1421
1422 for (i = 0; alarm_timers[i].name; i++) {
1423 t = &alarm_timers[i];
1424
1425 err = t->start(t);
1426 if (!err)
1427 break;
1428 }
1429
1430 if (err) {
1431 err = -ENOENT;
1432 goto fail;
1433 }
1434
1435 alarm_timer = t;
1436
1437 return 0;
1438
1439 fail:
1440 return err;
1441 }
1442
1443 static void quit_timers(void)
1444 {
1445 alarm_timer->stop(alarm_timer);
1446 alarm_timer = NULL;
1447 }
1448
1449 /***********************************************************/
1450 /* host time/date access */
1451 void qemu_get_timedate(struct tm *tm, int offset)
1452 {
1453 time_t ti;
1454 struct tm *ret;
1455
1456 time(&ti);
1457 ti += offset;
1458 if (rtc_date_offset == -1) {
1459 if (rtc_utc)
1460 ret = gmtime(&ti);
1461 else
1462 ret = localtime(&ti);
1463 } else {
1464 ti -= rtc_date_offset;
1465 ret = gmtime(&ti);
1466 }
1467
1468 memcpy(tm, ret, sizeof(struct tm));
1469 }
1470
1471 int qemu_timedate_diff(struct tm *tm)
1472 {
1473 time_t seconds;
1474
1475 if (rtc_date_offset == -1)
1476 if (rtc_utc)
1477 seconds = mktimegm(tm);
1478 else
1479 seconds = mktime(tm);
1480 else
1481 seconds = mktimegm(tm) + rtc_date_offset;
1482
1483 return seconds - time(NULL);
1484 }
1485
1486 static void configure_rtc_date_offset(const char *startdate, int legacy)
1487 {
1488 time_t rtc_start_date;
1489 struct tm tm;
1490
1491 if (!strcmp(startdate, "now") && legacy) {
1492 rtc_date_offset = -1;
1493 } else {
1494 if (sscanf(startdate, "%d-%d-%dT%d:%d:%d",
1495 &tm.tm_year,
1496 &tm.tm_mon,
1497 &tm.tm_mday,
1498 &tm.tm_hour,
1499 &tm.tm_min,
1500 &tm.tm_sec) == 6) {
1501 /* OK */
1502 } else if (sscanf(startdate, "%d-%d-%d",
1503 &tm.tm_year,
1504 &tm.tm_mon,
1505 &tm.tm_mday) == 3) {
1506 tm.tm_hour = 0;
1507 tm.tm_min = 0;
1508 tm.tm_sec = 0;
1509 } else {
1510 goto date_fail;
1511 }
1512 tm.tm_year -= 1900;
1513 tm.tm_mon--;
1514 rtc_start_date = mktimegm(&tm);
1515 if (rtc_start_date == -1) {
1516 date_fail:
1517 fprintf(stderr, "Invalid date format. Valid formats are:\n"
1518 "'2006-06-17T16:01:21' or '2006-06-17'\n");
1519 exit(1);
1520 }
1521 rtc_date_offset = time(NULL) - rtc_start_date;
1522 }
1523 }
1524
1525 static void configure_rtc(QemuOpts *opts)
1526 {
1527 const char *value;
1528
1529 value = qemu_opt_get(opts, "base");
1530 if (value) {
1531 if (!strcmp(value, "utc")) {
1532 rtc_utc = 1;
1533 } else if (!strcmp(value, "localtime")) {
1534 rtc_utc = 0;
1535 } else {
1536 configure_rtc_date_offset(value, 0);
1537 }
1538 }
1539 value = qemu_opt_get(opts, "clock");
1540 if (value) {
1541 if (!strcmp(value, "host")) {
1542 rtc_clock = host_clock;
1543 } else if (!strcmp(value, "vm")) {
1544 rtc_clock = vm_clock;
1545 } else {
1546 fprintf(stderr, "qemu: invalid option value '%s'\n", value);
1547 exit(1);
1548 }
1549 }
1550 #ifdef CONFIG_TARGET_I386
1551 value = qemu_opt_get(opts, "driftfix");
1552 if (value) {
1553 if (!strcmp(buf, "slew")) {
1554 rtc_td_hack = 1;
1555 } else if (!strcmp(buf, "none")) {
1556 rtc_td_hack = 0;
1557 } else {
1558 fprintf(stderr, "qemu: invalid option value '%s'\n", value);
1559 exit(1);
1560 }
1561 }
1562 #endif
1563 }
1564
1565 #ifdef _WIN32
1566 static void socket_cleanup(void)
1567 {
1568 WSACleanup();
1569 }
1570
1571 static int socket_init(void)
1572 {
1573 WSADATA Data;
1574 int ret, err;
1575
1576 ret = WSAStartup(MAKEWORD(2,2), &Data);
1577 if (ret != 0) {
1578 err = WSAGetLastError();
1579 fprintf(stderr, "WSAStartup: %d\n", err);
1580 return -1;
1581 }
1582 atexit(socket_cleanup);
1583 return 0;
1584 }
1585 #endif
1586
1587 /***********************************************************/
1588 /* Bluetooth support */
1589 static int nb_hcis;
1590 static int cur_hci;
1591 static struct HCIInfo *hci_table[MAX_NICS];
1592
1593 static struct bt_vlan_s {
1594 struct bt_scatternet_s net;
1595 int id;
1596 struct bt_vlan_s *next;
1597 } *first_bt_vlan;
1598
1599 /* find or alloc a new bluetooth "VLAN" */
1600 static struct bt_scatternet_s *qemu_find_bt_vlan(int id)
1601 {
1602 struct bt_vlan_s **pvlan, *vlan;
1603 for (vlan = first_bt_vlan; vlan != NULL; vlan = vlan->next) {
1604 if (vlan->id == id)
1605 return &vlan->net;
1606 }
1607 vlan = qemu_mallocz(sizeof(struct bt_vlan_s));
1608 vlan->id = id;
1609 pvlan = &first_bt_vlan;
1610 while (*pvlan != NULL)
1611 pvlan = &(*pvlan)->next;
1612 *pvlan = vlan;
1613 return &vlan->net;
1614 }
1615
1616 static void null_hci_send(struct HCIInfo *hci, const uint8_t *data, int len)
1617 {
1618 }
1619
1620 static int null_hci_addr_set(struct HCIInfo *hci, const uint8_t *bd_addr)
1621 {
1622 return -ENOTSUP;
1623 }
1624
1625 static struct HCIInfo null_hci = {
1626 .cmd_send = null_hci_send,
1627 .sco_send = null_hci_send,
1628 .acl_send = null_hci_send,
1629 .bdaddr_set = null_hci_addr_set,
1630 };
1631
1632 struct HCIInfo *qemu_next_hci(void)
1633 {
1634 if (cur_hci == nb_hcis)
1635 return &null_hci;
1636
1637 return hci_table[cur_hci++];
1638 }
1639
1640 static struct HCIInfo *hci_init(const char *str)
1641 {
1642 char *endp;
1643 struct bt_scatternet_s *vlan = 0;
1644
1645 if (!strcmp(str, "null"))
1646 /* null */
1647 return &null_hci;
1648 else if (!strncmp(str, "host", 4) && (str[4] == '\0' || str[4] == ':'))
1649 /* host[:hciN] */
1650 return bt_host_hci(str[4] ? str + 5 : "hci0");
1651 else if (!strncmp(str, "hci", 3)) {
1652 /* hci[,vlan=n] */
1653 if (str[3]) {
1654 if (!strncmp(str + 3, ",vlan=", 6)) {
1655 vlan = qemu_find_bt_vlan(strtol(str + 9, &endp, 0));
1656 if (*endp)
1657 vlan = 0;
1658 }
1659 } else
1660 vlan = qemu_find_bt_vlan(0);
1661 if (vlan)
1662 return bt_new_hci(vlan);
1663 }
1664
1665 fprintf(stderr, "qemu: Unknown bluetooth HCI `%s'.\n", str);
1666
1667 return 0;
1668 }
1669
1670 static int bt_hci_parse(const char *str)
1671 {
1672 struct HCIInfo *hci;
1673 bdaddr_t bdaddr;
1674
1675 if (nb_hcis >= MAX_NICS) {
1676 fprintf(stderr, "qemu: Too many bluetooth HCIs (max %i).\n", MAX_NICS);
1677 return -1;
1678 }
1679
1680 hci = hci_init(str);
1681 if (!hci)
1682 return -1;
1683
1684 bdaddr.b[0] = 0x52;
1685 bdaddr.b[1] = 0x54;
1686 bdaddr.b[2] = 0x00;
1687 bdaddr.b[3] = 0x12;
1688 bdaddr.b[4] = 0x34;
1689 bdaddr.b[5] = 0x56 + nb_hcis;
1690 hci->bdaddr_set(hci, bdaddr.b);
1691
1692 hci_table[nb_hcis++] = hci;
1693
1694 return 0;
1695 }
1696
1697 static void bt_vhci_add(int vlan_id)
1698 {
1699 struct bt_scatternet_s *vlan = qemu_find_bt_vlan(vlan_id);
1700
1701 if (!vlan->slave)
1702 fprintf(stderr, "qemu: warning: adding a VHCI to "
1703 "an empty scatternet %i\n", vlan_id);
1704
1705 bt_vhci_init(bt_new_hci(vlan));
1706 }
1707
1708 static struct bt_device_s *bt_device_add(const char *opt)
1709 {
1710 struct bt_scatternet_s *vlan;
1711 int vlan_id = 0;
1712 char *endp = strstr(opt, ",vlan=");
1713 int len = (endp ? endp - opt : strlen(opt)) + 1;
1714 char devname[10];
1715
1716 pstrcpy(devname, MIN(sizeof(devname), len), opt);
1717
1718 if (endp) {
1719 vlan_id = strtol(endp + 6, &endp, 0);
1720 if (*endp) {
1721 fprintf(stderr, "qemu: unrecognised bluetooth vlan Id\n");
1722 return 0;
1723 }
1724 }
1725
1726 vlan = qemu_find_bt_vlan(vlan_id);
1727
1728 if (!vlan->slave)
1729 fprintf(stderr, "qemu: warning: adding a slave device to "
1730 "an empty scatternet %i\n", vlan_id);
1731
1732 if (!strcmp(devname, "keyboard"))
1733 return bt_keyboard_init(vlan);
1734
1735 fprintf(stderr, "qemu: unsupported bluetooth device `%s'\n", devname);
1736 return 0;
1737 }
1738
1739 static int bt_parse(const char *opt)
1740 {
1741 const char *endp, *p;
1742 int vlan;
1743
1744 if (strstart(opt, "hci", &endp)) {
1745 if (!*endp || *endp == ',') {
1746 if (*endp)
1747 if (!strstart(endp, ",vlan=", 0))
1748 opt = endp + 1;
1749
1750 return bt_hci_parse(opt);
1751 }
1752 } else if (strstart(opt, "vhci", &endp)) {
1753 if (!*endp || *endp == ',') {
1754 if (*endp) {
1755 if (strstart(endp, ",vlan=", &p)) {
1756 vlan = strtol(p, (char **) &endp, 0);
1757 if (*endp) {
1758 fprintf(stderr, "qemu: bad scatternet '%s'\n", p);
1759 return 1;
1760 }
1761 } else {
1762 fprintf(stderr, "qemu: bad parameter '%s'\n", endp + 1);
1763 return 1;
1764 }
1765 } else
1766 vlan = 0;
1767
1768 bt_vhci_add(vlan);
1769 return 0;
1770 }
1771 } else if (strstart(opt, "device:", &endp))
1772 return !bt_device_add(endp);
1773
1774 fprintf(stderr, "qemu: bad bluetooth parameter '%s'\n", opt);
1775 return 1;
1776 }
1777
1778 /***********************************************************/
1779 /* QEMU Block devices */
1780
1781 #define HD_ALIAS "index=%d,media=disk"
1782 #define CDROM_ALIAS "index=2,media=cdrom"
1783 #define FD_ALIAS "index=%d,if=floppy"
1784 #define PFLASH_ALIAS "if=pflash"
1785 #define MTD_ALIAS "if=mtd"
1786 #define SD_ALIAS "index=0,if=sd"
1787
1788 QemuOpts *drive_add(const char *file, const char *fmt, ...)
1789 {
1790 va_list ap;
1791 char optstr[1024];
1792 QemuOpts *opts;
1793
1794 va_start(ap, fmt);
1795 vsnprintf(optstr, sizeof(optstr), fmt, ap);
1796 va_end(ap);
1797
1798 opts = qemu_opts_parse(&qemu_drive_opts, optstr, NULL);
1799 if (!opts) {
1800 fprintf(stderr, "%s: huh? duplicate? (%s)\n",
1801 __FUNCTION__, optstr);
1802 return NULL;
1803 }
1804 if (file)
1805 qemu_opt_set(opts, "file", file);
1806 return opts;
1807 }
1808
1809 DriveInfo *drive_get(BlockInterfaceType type, int bus, int unit)
1810 {
1811 DriveInfo *dinfo;
1812
1813 /* seek interface, bus and unit */
1814
1815 QTAILQ_FOREACH(dinfo, &drives, next) {
1816 if (dinfo->type == type &&
1817 dinfo->bus == bus &&
1818 dinfo->unit == unit)
1819 return dinfo;
1820 }
1821
1822 return NULL;
1823 }
1824
1825 DriveInfo *drive_get_by_id(const char *id)
1826 {
1827 DriveInfo *dinfo;
1828
1829 QTAILQ_FOREACH(dinfo, &drives, next) {
1830 if (strcmp(id, dinfo->id))
1831 continue;
1832 return dinfo;
1833 }
1834 return NULL;
1835 }
1836
1837 int drive_get_max_bus(BlockInterfaceType type)
1838 {
1839 int max_bus;
1840 DriveInfo *dinfo;
1841
1842 max_bus = -1;
1843 QTAILQ_FOREACH(dinfo, &drives, next) {
1844 if(dinfo->type == type &&
1845 dinfo->bus > max_bus)
1846 max_bus = dinfo->bus;
1847 }
1848 return max_bus;
1849 }
1850
1851 const char *drive_get_serial(BlockDriverState *bdrv)
1852 {
1853 DriveInfo *dinfo;
1854
1855 QTAILQ_FOREACH(dinfo, &drives, next) {
1856 if (dinfo->bdrv == bdrv)
1857 return dinfo->serial;
1858 }
1859
1860 return "\0";
1861 }
1862
1863 BlockInterfaceErrorAction drive_get_on_error(
1864 BlockDriverState *bdrv, int is_read)
1865 {
1866 DriveInfo *dinfo;
1867
1868 QTAILQ_FOREACH(dinfo, &drives, next) {
1869 if (dinfo->bdrv == bdrv)
1870 return is_read ? dinfo->on_read_error : dinfo->on_write_error;
1871 }
1872
1873 return is_read ? BLOCK_ERR_REPORT : BLOCK_ERR_STOP_ENOSPC;
1874 }
1875
1876 static void bdrv_format_print(void *opaque, const char *name)
1877 {
1878 fprintf(stderr, " %s", name);
1879 }
1880
1881 void drive_uninit(DriveInfo *dinfo)
1882 {
1883 qemu_opts_del(dinfo->opts);
1884 bdrv_delete(dinfo->bdrv);
1885 QTAILQ_REMOVE(&drives, dinfo, next);
1886 qemu_free(dinfo);
1887 }
1888
1889 static int parse_block_error_action(const char *buf, int is_read)
1890 {
1891 if (!strcmp(buf, "ignore")) {
1892 return BLOCK_ERR_IGNORE;
1893 } else if (!is_read && !strcmp(buf, "enospc")) {
1894 return BLOCK_ERR_STOP_ENOSPC;
1895 } else if (!strcmp(buf, "stop")) {
1896 return BLOCK_ERR_STOP_ANY;
1897 } else if (!strcmp(buf, "report")) {
1898 return BLOCK_ERR_REPORT;
1899 } else {
1900 fprintf(stderr, "qemu: '%s' invalid %s error action\n",
1901 buf, is_read ? "read" : "write");
1902 return -1;
1903 }
1904 }
1905
1906 DriveInfo *drive_init(QemuOpts *opts, void *opaque,
1907 int *fatal_error)
1908 {
1909 const char *buf;
1910 const char *file = NULL;
1911 char devname[128];
1912 const char *serial;
1913 const char *mediastr = "";
1914 BlockInterfaceType type;
1915 enum { MEDIA_DISK, MEDIA_CDROM } media;
1916 int bus_id, unit_id;
1917 int cyls, heads, secs, translation;
1918 BlockDriver *drv = NULL;
1919 QEMUMachine *machine = opaque;
1920 int max_devs;
1921 int index;
1922 int cache;
1923 int aio = 0;
1924 int ro = 0;
1925 int bdrv_flags;
1926 int on_read_error, on_write_error;
1927 const char *devaddr;
1928 DriveInfo *dinfo;
1929 int snapshot = 0;
1930
1931 *fatal_error = 1;
1932
1933 translation = BIOS_ATA_TRANSLATION_AUTO;
1934 cache = 1;
1935
1936 if (machine && machine->use_scsi) {
1937 type = IF_SCSI;
1938 max_devs = MAX_SCSI_DEVS;
1939 pstrcpy(devname, sizeof(devname), "scsi");
1940 } else {
1941 type = IF_IDE;
1942 max_devs = MAX_IDE_DEVS;
1943 pstrcpy(devname, sizeof(devname), "ide");
1944 }
1945 media = MEDIA_DISK;
1946
1947 /* extract parameters */
1948 bus_id = qemu_opt_get_number(opts, "bus", 0);
1949 unit_id = qemu_opt_get_number(opts, "unit", -1);
1950 index = qemu_opt_get_number(opts, "index", -1);
1951
1952 cyls = qemu_opt_get_number(opts, "cyls", 0);
1953 heads = qemu_opt_get_number(opts, "heads", 0);
1954 secs = qemu_opt_get_number(opts, "secs", 0);
1955
1956 snapshot = qemu_opt_get_bool(opts, "snapshot", 0);
1957 ro = qemu_opt_get_bool(opts, "readonly", 0);
1958
1959 file = qemu_opt_get(opts, "file");
1960 serial = qemu_opt_get(opts, "serial");
1961
1962 if ((buf = qemu_opt_get(opts, "if")) != NULL) {
1963 pstrcpy(devname, sizeof(devname), buf);
1964 if (!strcmp(buf, "ide")) {
1965 type = IF_IDE;
1966 max_devs = MAX_IDE_DEVS;
1967 } else if (!strcmp(buf, "scsi")) {
1968 type = IF_SCSI;
1969 max_devs = MAX_SCSI_DEVS;
1970 } else if (!strcmp(buf, "floppy")) {
1971 type = IF_FLOPPY;
1972 max_devs = 0;
1973 } else if (!strcmp(buf, "pflash")) {
1974 type = IF_PFLASH;
1975 max_devs = 0;
1976 } else if (!strcmp(buf, "mtd")) {
1977 type = IF_MTD;
1978 max_devs = 0;
1979 } else if (!strcmp(buf, "sd")) {
1980 type = IF_SD;
1981 max_devs = 0;
1982 } else if (!strcmp(buf, "virtio")) {
1983 type = IF_VIRTIO;
1984 max_devs = 0;
1985 } else if (!strcmp(buf, "xen")) {
1986 type = IF_XEN;
1987 max_devs = 0;
1988 } else if (!strcmp(buf, "none")) {
1989 type = IF_NONE;
1990 max_devs = 0;
1991 } else {
1992 fprintf(stderr, "qemu: unsupported bus type '%s'\n", buf);
1993 return NULL;
1994 }
1995 }
1996
1997 if (cyls || heads || secs) {
1998 if (cyls < 1 || (type == IF_IDE && cyls > 16383)) {
1999 fprintf(stderr, "qemu: '%s' invalid physical cyls number\n", buf);
2000 return NULL;
2001 }
2002 if (heads < 1 || (type == IF_IDE && heads > 16)) {
2003 fprintf(stderr, "qemu: '%s' invalid physical heads number\n", buf);
2004 return NULL;
2005 }
2006 if (secs < 1 || (type == IF_IDE && secs > 63)) {
2007 fprintf(stderr, "qemu: '%s' invalid physical secs number\n", buf);
2008 return NULL;
2009 }
2010 }
2011
2012 if ((buf = qemu_opt_get(opts, "trans")) != NULL) {
2013 if (!cyls) {
2014 fprintf(stderr,
2015 "qemu: '%s' trans must be used with cyls,heads and secs\n",
2016 buf);
2017 return NULL;
2018 }
2019 if (!strcmp(buf, "none"))
2020 translation = BIOS_ATA_TRANSLATION_NONE;
2021 else if (!strcmp(buf, "lba"))
2022 translation = BIOS_ATA_TRANSLATION_LBA;
2023 else if (!strcmp(buf, "auto"))
2024 translation = BIOS_ATA_TRANSLATION_AUTO;
2025 else {
2026 fprintf(stderr, "qemu: '%s' invalid translation type\n", buf);
2027 return NULL;
2028 }
2029 }
2030
2031 if ((buf = qemu_opt_get(opts, "media")) != NULL) {
2032 if (!strcmp(buf, "disk")) {
2033 media = MEDIA_DISK;
2034 } else if (!strcmp(buf, "cdrom")) {
2035 if (cyls || secs || heads) {
2036 fprintf(stderr,
2037 "qemu: '%s' invalid physical CHS format\n", buf);
2038 return NULL;
2039 }
2040 media = MEDIA_CDROM;
2041 } else {
2042 fprintf(stderr, "qemu: '%s' invalid media\n", buf);
2043 return NULL;
2044 }
2045 }
2046
2047 if ((buf = qemu_opt_get(opts, "cache")) != NULL) {
2048 if (!strcmp(buf, "off") || !strcmp(buf, "none"))
2049 cache = 0;
2050 else if (!strcmp(buf, "writethrough"))
2051 cache = 1;
2052 else if (!strcmp(buf, "writeback"))
2053 cache = 2;
2054 else {
2055 fprintf(stderr, "qemu: invalid cache option\n");
2056 return NULL;
2057 }
2058 }
2059
2060 #ifdef CONFIG_LINUX_AIO
2061 if ((buf = qemu_opt_get(opts, "aio")) != NULL) {
2062 if (!strcmp(buf, "threads"))
2063 aio = 0;
2064 else if (!strcmp(buf, "native"))
2065 aio = 1;
2066 else {
2067 fprintf(stderr, "qemu: invalid aio option\n");
2068 return NULL;
2069 }
2070 }
2071 #endif
2072
2073 if ((buf = qemu_opt_get(opts, "format")) != NULL) {
2074 if (strcmp(buf, "?") == 0) {
2075 fprintf(stderr, "qemu: Supported formats:");
2076 bdrv_iterate_format(bdrv_format_print, NULL);
2077 fprintf(stderr, "\n");
2078 return NULL;
2079 }
2080 drv = bdrv_find_whitelisted_format(buf);
2081 if (!drv) {
2082 fprintf(stderr, "qemu: '%s' invalid format\n", buf);
2083 return NULL;
2084 }
2085 }
2086
2087 on_write_error = BLOCK_ERR_STOP_ENOSPC;
2088 if ((buf = qemu_opt_get(opts, "werror")) != NULL) {
2089 if (type != IF_IDE && type != IF_SCSI && type != IF_VIRTIO) {
2090 fprintf(stderr, "werror is no supported by this format\n");
2091 return NULL;
2092 }
2093
2094 on_write_error = parse_block_error_action(buf, 0);
2095 if (on_write_error < 0) {
2096 return NULL;
2097 }
2098 }
2099
2100 on_read_error = BLOCK_ERR_REPORT;
2101 if ((buf = qemu_opt_get(opts, "rerror")) != NULL) {
2102 if (type != IF_IDE && type != IF_VIRTIO) {
2103 fprintf(stderr, "rerror is no supported by this format\n");
2104 return NULL;
2105 }
2106
2107 on_read_error = parse_block_error_action(buf, 1);
2108 if (on_read_error < 0) {
2109 return NULL;
2110 }
2111 }
2112
2113 if ((devaddr = qemu_opt_get(opts, "addr")) != NULL) {
2114 if (type != IF_VIRTIO) {
2115 fprintf(stderr, "addr is not supported\n");
2116 return NULL;
2117 }
2118 }
2119
2120 /* compute bus and unit according index */
2121
2122 if (index != -1) {
2123 if (bus_id != 0 || unit_id != -1) {
2124 fprintf(stderr,
2125 "qemu: index cannot be used with bus and unit\n");
2126 return NULL;
2127 }
2128 if (max_devs == 0)
2129 {
2130 unit_id = index;
2131 bus_id = 0;
2132 } else {
2133 unit_id = index % max_devs;
2134 bus_id = index / max_devs;
2135 }
2136 }
2137
2138 /* if user doesn't specify a unit_id,
2139 * try to find the first free
2140 */
2141
2142 if (unit_id == -1) {
2143 unit_id = 0;
2144 while (drive_get(type, bus_id, unit_id) != NULL) {
2145 unit_id++;
2146 if (max_devs && unit_id >= max_devs) {
2147 unit_id -= max_devs;
2148 bus_id++;
2149 }
2150 }
2151 }
2152
2153 /* check unit id */
2154
2155 if (max_devs && unit_id >= max_devs) {
2156 fprintf(stderr, "qemu: unit %d too big (max is %d)\n",
2157 unit_id, max_devs - 1);
2158 return NULL;
2159 }
2160
2161 /*
2162 * ignore multiple definitions
2163 */
2164
2165 if (drive_get(type, bus_id, unit_id) != NULL) {
2166 *fatal_error = 0;
2167 return NULL;
2168 }
2169
2170 /* init */
2171
2172 dinfo = qemu_mallocz(sizeof(*dinfo));
2173 if ((buf = qemu_opts_id(opts)) != NULL) {
2174 dinfo->id = qemu_strdup(buf);
2175 } else {
2176 /* no id supplied -> create one */
2177 dinfo->id = qemu_mallocz(32);
2178 if (type == IF_IDE || type == IF_SCSI)
2179 mediastr = (media == MEDIA_CDROM) ? "-cd" : "-hd";
2180 if (max_devs)
2181 snprintf(dinfo->id, 32, "%s%i%s%i",
2182 devname, bus_id, mediastr, unit_id);
2183 else
2184 snprintf(dinfo->id, 32, "%s%s%i",
2185 devname, mediastr, unit_id);
2186 }
2187 dinfo->bdrv = bdrv_new(dinfo->id);
2188 dinfo->devaddr = devaddr;
2189 dinfo->type = type;
2190 dinfo->bus = bus_id;
2191 dinfo->unit = unit_id;
2192 dinfo->on_read_error = on_read_error;
2193 dinfo->on_write_error = on_write_error;
2194 dinfo->opts = opts;
2195 if (serial)
2196 strncpy(dinfo->serial, serial, sizeof(serial));
2197 QTAILQ_INSERT_TAIL(&drives, dinfo, next);
2198
2199 switch(type) {
2200 case IF_IDE:
2201 case IF_SCSI:
2202 case IF_XEN:
2203 case IF_NONE:
2204 switch(media) {
2205 case MEDIA_DISK:
2206 if (cyls != 0) {
2207 bdrv_set_geometry_hint(dinfo->bdrv, cyls, heads, secs);
2208 bdrv_set_translation_hint(dinfo->bdrv, translation);
2209 }
2210 break;
2211 case MEDIA_CDROM:
2212 bdrv_set_type_hint(dinfo->bdrv, BDRV_TYPE_CDROM);
2213 break;
2214 }
2215 break;
2216 case IF_SD:
2217 /* FIXME: This isn't really a floppy, but it's a reasonable
2218 approximation. */
2219 case IF_FLOPPY:
2220 bdrv_set_type_hint(dinfo->bdrv, BDRV_TYPE_FLOPPY);
2221 break;
2222 case IF_PFLASH:
2223 case IF_MTD:
2224 break;
2225 case IF_VIRTIO:
2226 /* add virtio block device */
2227 opts = qemu_opts_create(&qemu_device_opts, NULL, 0);
2228 qemu_opt_set(opts, "driver", "virtio-blk-pci");
2229 qemu_opt_set(opts, "drive", dinfo->id);
2230 if (devaddr)
2231 qemu_opt_set(opts, "addr", devaddr);
2232 break;
2233 case IF_COUNT:
2234 abort();
2235 }
2236 if (!file) {
2237 *fatal_error = 0;
2238 return NULL;
2239 }
2240 bdrv_flags = 0;
2241 if (snapshot) {
2242 bdrv_flags |= BDRV_O_SNAPSHOT;
2243 cache = 2; /* always use write-back with snapshot */
2244 }
2245 if (cache == 0) /* no caching */
2246 bdrv_flags |= BDRV_O_NOCACHE;
2247 else if (cache == 2) /* write-back */
2248 bdrv_flags |= BDRV_O_CACHE_WB;
2249
2250 if (aio == 1) {
2251 bdrv_flags |= BDRV_O_NATIVE_AIO;
2252 } else {
2253 bdrv_flags &= ~BDRV_O_NATIVE_AIO;
2254 }
2255
2256 if (ro == 1) {
2257 if (type != IF_SCSI && type != IF_VIRTIO && type != IF_FLOPPY) {
2258 fprintf(stderr, "qemu: readonly flag not supported for drive with this interface\n");
2259 return NULL;
2260 }
2261 }
2262 /*
2263 * cdrom is read-only. Set it now, after above interface checking
2264 * since readonly attribute not explicitly required, so no error.
2265 */
2266 if (media == MEDIA_CDROM) {
2267 ro = 1;
2268 }
2269 bdrv_flags |= ro ? 0 : BDRV_O_RDWR;
2270
2271 if (bdrv_open2(dinfo->bdrv, file, bdrv_flags, drv) < 0) {
2272 fprintf(stderr, "qemu: could not open disk image %s: %s\n",
2273 file, strerror(errno));
2274 return NULL;
2275 }
2276
2277 if (bdrv_key_required(dinfo->bdrv))
2278 autostart = 0;
2279 *fatal_error = 0;
2280 return dinfo;
2281 }
2282
2283 static int drive_init_func(QemuOpts *opts, void *opaque)
2284 {
2285 QEMUMachine *machine = opaque;
2286 int fatal_error = 0;
2287
2288 if (drive_init(opts, machine, &fatal_error) == NULL) {
2289 if (fatal_error)
2290 return 1;
2291 }
2292 return 0;
2293 }
2294
2295 static int drive_enable_snapshot(QemuOpts *opts, void *opaque)
2296 {
2297 if (NULL == qemu_opt_get(opts, "snapshot")) {
2298 qemu_opt_set(opts, "snapshot", "on");
2299 }
2300 return 0;
2301 }
2302
2303 void qemu_register_boot_set(QEMUBootSetHandler *func, void *opaque)
2304 {
2305 boot_set_handler = func;
2306 boot_set_opaque = opaque;
2307 }
2308
2309 int qemu_boot_set(const char *boot_devices)
2310 {
2311 if (!boot_set_handler) {
2312 return -EINVAL;
2313 }
2314 return boot_set_handler(boot_set_opaque, boot_devices);
2315 }
2316
2317 static int parse_bootdevices(char *devices)
2318 {
2319 /* We just do some generic consistency checks */
2320 const char *p;
2321 int bitmap = 0;
2322
2323 for (p = devices; *p != '\0'; p++) {
2324 /* Allowed boot devices are:
2325 * a-b: floppy disk drives
2326 * c-f: IDE disk drives
2327 * g-m: machine implementation dependant drives
2328 * n-p: network devices
2329 * It's up to each machine implementation to check if the given boot
2330 * devices match the actual hardware implementation and firmware
2331 * features.
2332 */
2333 if (*p < 'a' || *p > 'p') {
2334 fprintf(stderr, "Invalid boot device '%c'\n", *p);
2335 exit(1);
2336 }
2337 if (bitmap & (1 << (*p - 'a'))) {
2338 fprintf(stderr, "Boot device '%c' was given twice\n", *p);
2339 exit(1);
2340 }
2341 bitmap |= 1 << (*p - 'a');
2342 }
2343 return bitmap;
2344 }
2345
2346 static void restore_boot_devices(void *opaque)
2347 {
2348 char *standard_boot_devices = opaque;
2349
2350 qemu_boot_set(standard_boot_devices);
2351
2352 qemu_unregister_reset(restore_boot_devices, standard_boot_devices);
2353 qemu_free(standard_boot_devices);
2354 }
2355
2356 static void numa_add(const char *optarg)
2357 {
2358 char option[128];
2359 char *endptr;
2360 unsigned long long value, endvalue;
2361 int nodenr;
2362
2363 optarg = get_opt_name(option, 128, optarg, ',') + 1;
2364 if (!strcmp(option, "node")) {
2365 if (get_param_value(option, 128, "nodeid", optarg) == 0) {
2366 nodenr = nb_numa_nodes;
2367 } else {
2368 nodenr = strtoull(option, NULL, 10);
2369 }
2370
2371 if (get_param_value(option, 128, "mem", optarg) == 0) {
2372 node_mem[nodenr] = 0;
2373 } else {
2374 value = strtoull(option, &endptr, 0);
2375 switch (*endptr) {
2376 case 0: case 'M': case 'm':
2377 value <<= 20;
2378 break;
2379 case 'G': case 'g':
2380 value <<= 30;
2381 break;
2382 }
2383 node_mem[nodenr] = value;
2384 }
2385 if (get_param_value(option, 128, "cpus", optarg) == 0) {
2386 node_cpumask[nodenr] = 0;
2387 } else {
2388 value = strtoull(option, &endptr, 10);
2389 if (value >= 64) {
2390 value = 63;
2391 fprintf(stderr, "only 64 CPUs in NUMA mode supported.\n");
2392 } else {
2393 if (*endptr == '-') {
2394 endvalue = strtoull(endptr+1, &endptr, 10);
2395 if (endvalue >= 63) {
2396 endvalue = 62;
2397 fprintf(stderr,
2398 "only 63 CPUs in NUMA mode supported.\n");
2399 }
2400 value = (2ULL << endvalue) - (1ULL << value);
2401 } else {
2402 value = 1ULL << value;
2403 }
2404 }
2405 node_cpumask[nodenr] = value;
2406 }
2407 nb_numa_nodes++;
2408 }
2409 return;
2410 }
2411
2412 static void smp_parse(const char *optarg)
2413 {
2414 int smp, sockets = 0, threads = 0, cores = 0;
2415 char *endptr;
2416 char option[128];
2417
2418 smp = strtoul(optarg, &endptr, 10);
2419 if (endptr != optarg) {
2420 if (*endptr == ',') {
2421 endptr++;
2422 }
2423 }
2424 if (get_param_value(option, 128, "sockets", endptr) != 0)
2425 sockets = strtoull(option, NULL, 10);
2426 if (get_param_value(option, 128, "cores", endptr) != 0)
2427 cores = strtoull(option, NULL, 10);
2428 if (get_param_value(option, 128, "threads", endptr) != 0)
2429 threads = strtoull(option, NULL, 10);
2430 if (get_param_value(option, 128, "maxcpus", endptr) != 0)
2431 max_cpus = strtoull(option, NULL, 10);
2432
2433 /* compute missing values, prefer sockets over cores over threads */
2434 if (smp == 0 || sockets == 0) {
2435 sockets = sockets > 0 ? sockets : 1;
2436 cores = cores > 0 ? cores : 1;
2437 threads = threads > 0 ? threads : 1;
2438 if (smp == 0) {
2439 smp = cores * threads * sockets;
2440 }
2441 } else {
2442 if (cores == 0) {
2443 threads = threads > 0 ? threads : 1;
2444 cores = smp / (sockets * threads);
2445 } else {
2446 if (sockets) {
2447 threads = smp / (cores * sockets);
2448 }
2449 }
2450 }
2451 smp_cpus = smp;
2452 smp_cores = cores > 0 ? cores : 1;
2453 smp_threads = threads > 0 ? threads : 1;
2454 if (max_cpus == 0)
2455 max_cpus = smp_cpus;
2456 }
2457
2458 /***********************************************************/
2459 /* USB devices */
2460
2461 static int usb_device_add(const char *devname, int is_hotplug)
2462 {
2463 const char *p;
2464 USBDevice *dev = NULL;
2465
2466 if (!usb_enabled)
2467 return -1;
2468
2469 /* drivers with .usbdevice_name entry in USBDeviceInfo */
2470 dev = usbdevice_create(devname);
2471 if (dev)
2472 goto done;
2473
2474 /* the other ones */
2475 if (strstart(devname, "host:", &p)) {
2476 dev = usb_host_device_open(p);
2477 } else if (!strcmp(devname, "bt") || strstart(devname, "bt:", &p)) {
2478 dev = usb_bt_init(devname[2] ? hci_init(p) :
2479 bt_new_hci(qemu_find_bt_vlan(0)));
2480 } else {
2481 return -1;
2482 }
2483 if (!dev)
2484 return -1;
2485
2486 done:
2487 return 0;
2488 }
2489
2490 static int usb_device_del(const char *devname)
2491 {
2492 int bus_num, addr;
2493 const char *p;
2494
2495 if (strstart(devname, "host:", &p))
2496 return usb_host_device_close(p);
2497
2498 if (!usb_enabled)
2499 return -1;
2500
2501 p = strchr(devname, '.');
2502 if (!p)
2503 return -1;
2504 bus_num = strtoul(devname, NULL, 0);
2505 addr = strtoul(p + 1, NULL, 0);
2506
2507 return usb_device_delete_addr(bus_num, addr);
2508 }
2509
2510 static int usb_parse(const char *cmdline)
2511 {
2512 int r;
2513 r = usb_device_add(cmdline, 0);
2514 if (r < 0) {
2515 fprintf(stderr, "qemu: could not add USB device '%s'\n", cmdline);
2516 }
2517 return r;
2518 }
2519
2520 void do_usb_add(Monitor *mon, const QDict *qdict)
2521 {
2522 const char *devname = qdict_get_str(qdict, "devname");
2523 if (usb_device_add(devname, 1) < 0) {
2524 qemu_error("could not add USB device '%s'\n", devname);
2525 }
2526 }
2527
2528 void do_usb_del(Monitor *mon, const QDict *qdict)
2529 {
2530 const char *devname = qdict_get_str(qdict, "devname");
2531 if (usb_device_del(devname) < 0) {
2532 qemu_error("could not delete USB device '%s'\n", devname);
2533 }
2534 }
2535
2536 /***********************************************************/
2537 /* PCMCIA/Cardbus */
2538
2539 static struct pcmcia_socket_entry_s {
2540 PCMCIASocket *socket;
2541 struct pcmcia_socket_entry_s *next;
2542 } *pcmcia_sockets = 0;
2543
2544 void pcmcia_socket_register(PCMCIASocket *socket)
2545 {
2546 struct pcmcia_socket_entry_s *entry;
2547
2548 entry = qemu_malloc(sizeof(struct pcmcia_socket_entry_s));
2549 entry->socket = socket;
2550 entry->next = pcmcia_sockets;
2551 pcmcia_sockets = entry;
2552 }
2553
2554 void pcmcia_socket_unregister(PCMCIASocket *socket)
2555 {
2556 struct pcmcia_socket_entry_s *entry, **ptr;
2557
2558 ptr = &pcmcia_sockets;
2559 for (entry = *ptr; entry; ptr = &entry->next, entry = *ptr)
2560 if (entry->socket == socket) {
2561 *ptr = entry->next;
2562 qemu_free(entry);
2563 }
2564 }
2565
2566 void pcmcia_info(Monitor *mon)
2567 {
2568 struct pcmcia_socket_entry_s *iter;
2569
2570 if (!pcmcia_sockets)
2571 monitor_printf(mon, "No PCMCIA sockets\n");
2572
2573 for (iter = pcmcia_sockets; iter; iter = iter->next)
2574 monitor_printf(mon, "%s: %s\n", iter->socket->slot_string,
2575 iter->socket->attached ? iter->socket->card_string :
2576 "Empty");
2577 }
2578
2579 /***********************************************************/
2580 /* register display */
2581
2582 struct DisplayAllocator default_allocator = {
2583 defaultallocator_create_displaysurface,
2584 defaultallocator_resize_displaysurface,
2585 defaultallocator_free_displaysurface
2586 };
2587
2588 void register_displaystate(DisplayState *ds)
2589 {
2590 DisplayState **s;
2591 s = &display_state;
2592 while (*s != NULL)
2593 s = &(*s)->next;
2594 ds->next = NULL;
2595 *s = ds;
2596 }
2597
2598 DisplayState *get_displaystate(void)
2599 {
2600 return display_state;
2601 }
2602
2603 DisplayAllocator *register_displayallocator(DisplayState *ds, DisplayAllocator *da)
2604 {
2605 if(ds->allocator == &default_allocator) ds->allocator = da;
2606 return ds->allocator;
2607 }
2608
2609 /* dumb display */
2610
2611 static void dumb_display_init(void)
2612 {
2613 DisplayState *ds = qemu_mallocz(sizeof(DisplayState));
2614 ds->allocator = &default_allocator;
2615 ds->surface = qemu_create_displaysurface(ds, 640, 480);
2616 register_displaystate(ds);
2617 }
2618
2619 /***********************************************************/
2620 /* I/O handling */
2621
2622 typedef struct IOHandlerRecord {
2623 int fd;
2624 IOCanRWHandler *fd_read_poll;
2625 IOHandler *fd_read;
2626 IOHandler *fd_write;
2627 int deleted;
2628 void *opaque;
2629 /* temporary data */
2630 struct pollfd *ufd;
2631 struct IOHandlerRecord *next;
2632 } IOHandlerRecord;
2633
2634 static IOHandlerRecord *first_io_handler;
2635
2636 /* XXX: fd_read_poll should be suppressed, but an API change is
2637 necessary in the character devices to suppress fd_can_read(). */
2638 int qemu_set_fd_handler2(int fd,
2639 IOCanRWHandler *fd_read_poll,
2640 IOHandler *fd_read,
2641 IOHandler *fd_write,
2642 void *opaque)
2643 {
2644 IOHandlerRecord **pioh, *ioh;
2645
2646 if (!fd_read && !fd_write) {
2647 pioh = &first_io_handler;
2648 for(;;) {
2649 ioh = *pioh;
2650 if (ioh == NULL)
2651 break;
2652 if (ioh->fd == fd) {
2653 ioh->deleted = 1;
2654 break;
2655 }
2656 pioh = &ioh->next;
2657 }
2658 } else {
2659 for(ioh = first_io_handler; ioh != NULL; ioh = ioh->next) {
2660 if (ioh->fd == fd)
2661 goto found;
2662 }
2663 ioh = qemu_mallocz(sizeof(IOHandlerRecord));
2664 ioh->next = first_io_handler;
2665 first_io_handler = ioh;
2666 found:
2667 ioh->fd = fd;
2668 ioh->fd_read_poll = fd_read_poll;
2669 ioh->fd_read = fd_read;
2670 ioh->fd_write = fd_write;
2671 ioh->opaque = opaque;
2672 ioh->deleted = 0;
2673 }
2674 return 0;
2675 }
2676
2677 int qemu_set_fd_handler(int fd,
2678 IOHandler *fd_read,
2679 IOHandler *fd_write,
2680 void *opaque)
2681 {
2682 return qemu_set_fd_handler2(fd, NULL, fd_read, fd_write, opaque);
2683 }
2684
2685 #ifdef _WIN32
2686 /***********************************************************/
2687 /* Polling handling */
2688
2689 typedef struct PollingEntry {
2690 PollingFunc *func;
2691 void *opaque;
2692 struct PollingEntry *next;
2693 } PollingEntry;
2694
2695 static PollingEntry *first_polling_entry;
2696
2697 int qemu_add_polling_cb(PollingFunc *func, void *opaque)
2698 {
2699 PollingEntry **ppe, *pe;
2700 pe = qemu_mallocz(sizeof(PollingEntry));
2701 pe->func = func;
2702 pe->opaque = opaque;
2703 for(ppe = &first_polling_entry; *ppe != NULL; ppe = &(*ppe)->next);
2704 *ppe = pe;
2705 return 0;
2706 }
2707
2708 void qemu_del_polling_cb(PollingFunc *func, void *opaque)
2709 {
2710 PollingEntry **ppe, *pe;
2711 for(ppe = &first_polling_entry; *ppe != NULL; ppe = &(*ppe)->next) {
2712 pe = *ppe;
2713 if (pe->func == func && pe->opaque == opaque) {
2714 *ppe = pe->next;
2715 qemu_free(pe);
2716 break;
2717 }
2718 }
2719 }
2720
2721 /***********************************************************/
2722 /* Wait objects support */
2723 typedef struct WaitObjects {
2724 int num;
2725 HANDLE events[MAXIMUM_WAIT_OBJECTS + 1];
2726 WaitObjectFunc *func[MAXIMUM_WAIT_OBJECTS + 1];
2727 void *opaque[MAXIMUM_WAIT_OBJECTS + 1];
2728 } WaitObjects;
2729
2730 static WaitObjects wait_objects = {0};
2731
2732 int qemu_add_wait_object(HANDLE handle, WaitObjectFunc *func, void *opaque)
2733 {
2734 WaitObjects *w = &wait_objects;
2735
2736 if (w->num >= MAXIMUM_WAIT_OBJECTS)
2737 return -1;
2738 w->events[w->num] = handle;
2739 w->func[w->num] = func;
2740 w->opaque[w->num] = opaque;
2741 w->num++;
2742 return 0;
2743 }
2744
2745 void qemu_del_wait_object(HANDLE handle, WaitObjectFunc *func, void *opaque)
2746 {
2747 int i, found;
2748 WaitObjects *w = &wait_objects;
2749
2750 found = 0;
2751 for (i = 0; i < w->num; i++) {
2752 if (w->events[i] == handle)
2753 found = 1;
2754 if (found) {
2755 w->events[i] = w->events[i + 1];
2756 w->func[i] = w->func[i + 1];
2757 w->opaque[i] = w->opaque[i + 1];
2758 }
2759 }
2760 if (found)
2761 w->num--;
2762 }
2763 #endif
2764
2765 /***********************************************************/
2766 /* ram save/restore */
2767
2768 #define RAM_SAVE_FLAG_FULL 0x01 /* Obsolete, not used anymore */
2769 #define RAM_SAVE_FLAG_COMPRESS 0x02
2770 #define RAM_SAVE_FLAG_MEM_SIZE 0x04
2771 #define RAM_SAVE_FLAG_PAGE 0x08
2772 #define RAM_SAVE_FLAG_EOS 0x10
2773
2774 static int is_dup_page(uint8_t *page, uint8_t ch)
2775 {
2776 uint32_t val = ch << 24 | ch << 16 | ch << 8 | ch;
2777 uint32_t *array = (uint32_t *)page;
2778 int i;
2779
2780 for (i = 0; i < (TARGET_PAGE_SIZE / 4); i++) {
2781 if (array[i] != val)
2782 return 0;
2783 }
2784
2785 return 1;
2786 }
2787
2788 static int ram_save_block(QEMUFile *f)
2789 {
2790 static ram_addr_t current_addr = 0;
2791 ram_addr_t saved_addr = current_addr;
2792 ram_addr_t addr = 0;
2793 int found = 0;
2794
2795 while (addr < last_ram_offset) {
2796 if (cpu_physical_memory_get_dirty(current_addr, MIGRATION_DIRTY_FLAG)) {
2797 uint8_t *p;
2798
2799 cpu_physical_memory_reset_dirty(current_addr,
2800 current_addr + TARGET_PAGE_SIZE,
2801 MIGRATION_DIRTY_FLAG);
2802
2803 p = qemu_get_ram_ptr(current_addr);
2804
2805 if (is_dup_page(p, *p)) {
2806 qemu_put_be64(f, current_addr | RAM_SAVE_FLAG_COMPRESS);
2807 qemu_put_byte(f, *p);
2808 } else {
2809 qemu_put_be64(f, current_addr | RAM_SAVE_FLAG_PAGE);
2810 qemu_put_buffer(f, p, TARGET_PAGE_SIZE);
2811 }
2812
2813 found = 1;
2814 break;
2815 }
2816 addr += TARGET_PAGE_SIZE;
2817 current_addr = (saved_addr + addr) % last_ram_offset;
2818 }
2819
2820 return found;
2821 }
2822
2823 static uint64_t bytes_transferred;
2824
2825 static ram_addr_t ram_save_remaining(void)
2826 {
2827 ram_addr_t addr;
2828 ram_addr_t count = 0;
2829
2830 for (addr = 0; addr < last_ram_offset; addr += TARGET_PAGE_SIZE) {
2831 if (cpu_physical_memory_get_dirty(addr, MIGRATION_DIRTY_FLAG))
2832 count++;
2833 }
2834
2835 return count;
2836 }
2837
2838 uint64_t ram_bytes_remaining(void)
2839 {
2840 return ram_save_remaining() * TARGET_PAGE_SIZE;
2841 }
2842
2843 uint64_t ram_bytes_transferred(void)
2844 {
2845 return bytes_transferred;
2846 }
2847
2848 uint64_t ram_bytes_total(void)
2849 {
2850 return last_ram_offset;
2851 }
2852
2853 static int ram_save_live(Monitor *mon, QEMUFile *f, int stage, void *opaque)
2854 {
2855 ram_addr_t addr;
2856 uint64_t bytes_transferred_last;
2857 double bwidth = 0;
2858 uint64_t expected_time = 0;
2859
2860 if (stage < 0) {
2861 cpu_physical_memory_set_dirty_tracking(0);
2862 return 0;
2863 }
2864
2865 if (cpu_physical_sync_dirty_bitmap(0, TARGET_PHYS_ADDR_MAX) != 0) {
2866 qemu_file_set_error(f);
2867 return 0;
2868 }
2869
2870 if (stage == 1) {
2871 bytes_transferred = 0;
2872
2873 /* Make sure all dirty bits are set */
2874 for (addr = 0; addr < last_ram_offset; addr += TARGET_PAGE_SIZE) {
2875 if (!cpu_physical_memory_get_dirty(addr, MIGRATION_DIRTY_FLAG))
2876 cpu_physical_memory_set_dirty(addr);
2877 }
2878
2879 /* Enable dirty memory tracking */
2880 cpu_physical_memory_set_dirty_tracking(1);
2881
2882 qemu_put_be64(f, last_ram_offset | RAM_SAVE_FLAG_MEM_SIZE);
2883 }
2884
2885 bytes_transferred_last = bytes_transferred;
2886 bwidth = qemu_get_clock_ns(rt_clock);
2887
2888 while (!qemu_file_rate_limit(f)) {
2889 int ret;
2890
2891 ret = ram_save_block(f);
2892 bytes_transferred += ret * TARGET_PAGE_SIZE;
2893 if (ret == 0) /* no more blocks */
2894 break;
2895 }
2896
2897 bwidth = qemu_get_clock_ns(rt_clock) - bwidth;
2898 bwidth = (bytes_transferred - bytes_transferred_last) / bwidth;
2899
2900 /* if we haven't transferred anything this round, force expected_time to a
2901 * a very high value, but without crashing */
2902 if (bwidth == 0)
2903 bwidth = 0.000001;
2904
2905 /* try transferring iterative blocks of memory */
2906 if (stage == 3) {
2907 /* flush all remaining blocks regardless of rate limiting */
2908 while (ram_save_block(f) != 0) {
2909 bytes_transferred += TARGET_PAGE_SIZE;
2910 }
2911 cpu_physical_memory_set_dirty_tracking(0);
2912 }
2913
2914 qemu_put_be64(f, RAM_SAVE_FLAG_EOS);
2915
2916 expected_time = ram_save_remaining() * TARGET_PAGE_SIZE / bwidth;
2917
2918 return (stage == 2) && (expected_time <= migrate_max_downtime());
2919 }
2920
2921 static int ram_load(QEMUFile *f, void *opaque, int version_id)
2922 {
2923 ram_addr_t addr;
2924 int flags;
2925
2926 if (version_id != 3)
2927 return -EINVAL;
2928
2929 do {
2930 addr = qemu_get_be64(f);
2931
2932 flags = addr & ~TARGET_PAGE_MASK;
2933 addr &= TARGET_PAGE_MASK;
2934
2935 if (flags & RAM_SAVE_FLAG_MEM_SIZE) {
2936 if (addr != last_ram_offset)
2937 return -EINVAL;
2938 }
2939
2940 if (flags & RAM_SAVE_FLAG_COMPRESS) {
2941 uint8_t ch = qemu_get_byte(f);
2942 memset(qemu_get_ram_ptr(addr), ch, TARGET_PAGE_SIZE);
2943 #ifndef _WIN32
2944 if (ch == 0 &&
2945 (!kvm_enabled() || kvm_has_sync_mmu())) {
2946 madvise(qemu_get_ram_ptr(addr), TARGET_PAGE_SIZE, MADV_DONTNEED);
2947 }
2948 #endif
2949 } else if (flags & RAM_SAVE_FLAG_PAGE) {
2950 qemu_get_buffer(f, qemu_get_ram_ptr(addr), TARGET_PAGE_SIZE);
2951 }
2952 if (qemu_file_has_error(f)) {
2953 return -EIO;
2954 }
2955 } while (!(flags & RAM_SAVE_FLAG_EOS));
2956
2957 return 0;
2958 }
2959
2960 void qemu_service_io(void)
2961 {
2962 qemu_notify_event();
2963 }
2964
2965 /***********************************************************/
2966 /* machine registration */
2967
2968 static QEMUMachine *first_machine = NULL;
2969 QEMUMachine *current_machine = NULL;
2970
2971 int qemu_register_machine(QEMUMachine *m)
2972 {
2973 QEMUMachine **pm;
2974 pm = &first_machine;
2975 while (*pm != NULL)
2976 pm = &(*pm)->next;
2977 m->next = NULL;
2978 *pm = m;
2979 return 0;
2980 }
2981
2982 static QEMUMachine *find_machine(const char *name)
2983 {
2984 QEMUMachine *m;
2985
2986 for(m = first_machine; m != NULL; m = m->next) {
2987 if (!strcmp(m->name, name))
2988 return m;
2989 if (m->alias && !strcmp(m->alias, name))
2990 return m;
2991 }
2992 return NULL;
2993 }
2994
2995 static QEMUMachine *find_default_machine(void)
2996 {
2997 QEMUMachine *m;
2998
2999 for(m = first_machine; m != NULL; m = m->next) {
3000 if (m->is_default) {
3001 return m;
3002 }
3003 }
3004 return NULL;
3005 }
3006
3007 /***********************************************************/
3008 /* main execution loop */
3009
3010 static void gui_update(void *opaque)
3011 {
3012 uint64_t interval = GUI_REFRESH_INTERVAL;
3013 DisplayState *ds = opaque;
3014 DisplayChangeListener *dcl = ds->listeners;
3015
3016 qemu_flush_coalesced_mmio_buffer();
3017 dpy_refresh(ds);
3018
3019 while (dcl != NULL) {
3020 if (dcl->gui_timer_interval &&
3021 dcl->gui_timer_interval < interval)
3022 interval = dcl->gui_timer_interval;
3023 dcl = dcl->next;
3024 }
3025 qemu_mod_timer(ds->gui_timer, interval + qemu_get_clock(rt_clock));
3026 }
3027
3028 static void nographic_update(void *opaque)
3029 {
3030 uint64_t interval = GUI_REFRESH_INTERVAL;
3031
3032 qemu_flush_coalesced_mmio_buffer();
3033 qemu_mod_timer(nographic_timer, interval + qemu_get_clock(rt_clock));
3034 }
3035
3036 struct vm_change_state_entry {
3037 VMChangeStateHandler *cb;
3038 void *opaque;
3039 QLIST_ENTRY (vm_change_state_entry) entries;
3040 };
3041
3042 static QLIST_HEAD(vm_change_state_head, vm_change_state_entry) vm_change_state_head;
3043
3044 VMChangeStateEntry *qemu_add_vm_change_state_handler(VMChangeStateHandler *cb,
3045 void *opaque)
3046 {
3047 VMChangeStateEntry *e;
3048
3049 e = qemu_mallocz(sizeof (*e));
3050
3051 e->cb = cb;
3052 e->opaque = opaque;
3053 QLIST_INSERT_HEAD(&vm_change_state_head, e, entries);
3054 return e;
3055 }
3056
3057 void qemu_del_vm_change_state_handler(VMChangeStateEntry *e)
3058 {
3059 QLIST_REMOVE (e, entries);
3060 qemu_free (e);
3061 }
3062
3063 static void vm_state_notify(int running, int reason)
3064 {
3065 VMChangeStateEntry *e;
3066
3067 for (e = vm_change_state_head.lh_first; e; e = e->entries.le_next) {
3068 e->cb(e->opaque, running, reason);
3069 }
3070 }
3071
3072 static void resume_all_vcpus(void);
3073 static void pause_all_vcpus(void);
3074
3075 void vm_start(void)
3076 {
3077 if (!vm_running) {
3078 cpu_enable_ticks();
3079 vm_running = 1;
3080 vm_state_notify(1, 0);
3081 qemu_rearm_alarm_timer(alarm_timer);
3082 resume_all_vcpus();
3083 }
3084 }
3085
3086 /* reset/shutdown handler */
3087
3088 typedef struct QEMUResetEntry {
3089 QTAILQ_ENTRY(QEMUResetEntry) entry;
3090 QEMUResetHandler *func;
3091 void *opaque;
3092 } QEMUResetEntry;
3093
3094 static QTAILQ_HEAD(reset_handlers, QEMUResetEntry) reset_handlers =
3095 QTAILQ_HEAD_INITIALIZER(reset_handlers);
3096 static int reset_requested;
3097 static int shutdown_requested;
3098 static int powerdown_requested;
3099 static int debug_requested;
3100 static int vmstop_requested;
3101
3102 int qemu_shutdown_requested(void)
3103 {
3104 int r = shutdown_requested;
3105 shutdown_requested = 0;
3106 return r;
3107 }
3108
3109 int qemu_reset_requested(void)
3110 {
3111 int r = reset_requested;
3112 reset_requested = 0;
3113 return r;
3114 }
3115
3116 int qemu_powerdown_requested(void)
3117 {
3118 int r = powerdown_requested;
3119 powerdown_requested = 0;
3120 return r;
3121 }
3122
3123 static int qemu_debug_requested(void)
3124 {
3125 int r = debug_requested;
3126 debug_requested = 0;
3127 return r;
3128 }
3129
3130 static int qemu_vmstop_requested(void)
3131 {
3132 int r = vmstop_requested;
3133 vmstop_requested = 0;
3134 return r;
3135 }
3136
3137 static void do_vm_stop(int reason)
3138 {
3139 if (vm_running) {
3140 cpu_disable_ticks();
3141 vm_running = 0;
3142 pause_all_vcpus();
3143 vm_state_notify(0, reason);
3144 }
3145 }
3146
3147 void qemu_register_reset(QEMUResetHandler *func, void *opaque)
3148 {
3149 QEMUResetEntry *re = qemu_mallocz(sizeof(QEMUResetEntry));
3150
3151 re->func = func;
3152 re->opaque = opaque;
3153 QTAILQ_INSERT_TAIL(&reset_handlers, re, entry);
3154 }
3155
3156 void qemu_unregister_reset(QEMUResetHandler *func, void *opaque)
3157 {
3158 QEMUResetEntry *re;
3159
3160 QTAILQ_FOREACH(re, &reset_handlers, entry) {
3161 if (re->func == func && re->opaque == opaque) {
3162 QTAILQ_REMOVE(&reset_handlers, re, entry);
3163 qemu_free(re);
3164 return;
3165 }
3166 }
3167 }
3168
3169 void qemu_system_reset(void)
3170 {
3171 QEMUResetEntry *re, *nre;
3172
3173 /* reset all devices */
3174 QTAILQ_FOREACH_SAFE(re, &reset_handlers, entry, nre) {
3175 re->func(re->opaque);
3176 }
3177 }
3178
3179 void qemu_system_reset_request(void)
3180 {
3181 if (no_reboot) {
3182 shutdown_requested = 1;
3183 } else {
3184 reset_requested = 1;
3185 }
3186 qemu_notify_event();
3187 }
3188
3189 void qemu_system_shutdown_request(void)
3190 {
3191 shutdown_requested = 1;
3192 qemu_notify_event();
3193 }
3194
3195 void qemu_system_powerdown_request(void)
3196 {
3197 powerdown_requested = 1;
3198 qemu_notify_event();
3199 }
3200
3201 #ifdef CONFIG_IOTHREAD
3202 static void qemu_system_vmstop_request(int reason)
3203 {
3204 vmstop_requested = reason;
3205 qemu_notify_event();
3206 }
3207 #endif
3208
3209 #ifndef _WIN32
3210 static int io_thread_fd = -1;
3211
3212 static void qemu_event_increment(void)
3213 {
3214 static const char byte = 0;
3215 ssize_t ret;
3216
3217 if (io_thread_fd == -1)
3218 return;
3219
3220 do {
3221 ret = write(io_thread_fd, &byte, sizeof(byte));
3222 } while (ret < 0 && errno == EINTR);
3223
3224 /* EAGAIN is fine, a read must be pending. */
3225 if (ret < 0 && errno != EAGAIN) {
3226 fprintf(stderr, "qemu_event_increment: write() filed: %s\n",
3227 strerror(errno));
3228 exit (1);
3229 }
3230 }
3231
3232 static void qemu_event_read(void *opaque)
3233 {
3234 int fd = (unsigned long)opaque;
3235 ssize_t len;
3236 char buffer[512];
3237
3238 /* Drain the notify pipe */
3239 do {
3240 len = read(fd, buffer, sizeof(buffer));
3241 } while ((len == -1 && errno == EINTR) || len == sizeof(buffer));
3242 }
3243
3244 static int qemu_event_init(void)
3245 {
3246 int err;
3247 int fds[2];
3248
3249 err = qemu_pipe(fds);
3250 if (err == -1)
3251 return -errno;
3252
3253 err = fcntl_setfl(fds[0], O_NONBLOCK);
3254 if (err < 0)
3255 goto fail;
3256
3257 err = fcntl_setfl(fds[1], O_NONBLOCK);
3258 if (err < 0)
3259 goto fail;
3260
3261 qemu_set_fd_handler2(fds[0], NULL, qemu_event_read, NULL,
3262 (void *)(unsigned long)fds[0]);
3263
3264 io_thread_fd = fds[1];
3265 return 0;
3266
3267 fail:
3268 close(fds[0]);
3269 close(fds[1]);
3270 return err;
3271 }
3272 #else
3273 HANDLE qemu_event_handle;
3274
3275 static void dummy_event_handler(void *opaque)
3276 {
3277 }
3278
3279 static int qemu_event_init(void)
3280 {
3281 qemu_event_handle = CreateEvent(NULL, FALSE, FALSE, NULL);
3282 if (!qemu_event_handle) {
3283 fprintf(stderr, "Failed CreateEvent: %ld\n", GetLastError());
3284 return -1;
3285 }
3286 qemu_add_wait_object(qemu_event_handle, dummy_event_handler, NULL);
3287 return 0;
3288 }
3289
3290 static void qemu_event_increment(void)
3291 {
3292 if (!SetEvent(qemu_event_handle)) {
3293 fprintf(stderr, "qemu_event_increment: SetEvent failed: %ld\n",
3294 GetLastError());
3295 exit (1);
3296 }
3297 }
3298 #endif
3299
3300 static int cpu_can_run(CPUState *env)
3301 {
3302 if (env->stop)
3303 return 0;
3304 if (env->stopped)
3305 return 0;
3306 if (!vm_running)
3307 return 0;
3308 return 1;
3309 }
3310
3311 #ifndef CONFIG_IOTHREAD
3312 static int qemu_init_main_loop(void)
3313 {
3314 return qemu_event_init();
3315 }
3316
3317 void qemu_init_vcpu(void *_env)
3318 {
3319 CPUState *env = _env;
3320
3321 env->nr_cores = smp_cores;
3322 env->nr_threads = smp_threads;
3323 if (kvm_enabled())
3324 kvm_init_vcpu(env);
3325 return;
3326 }
3327
3328 int qemu_cpu_self(void *env)
3329 {
3330 return 1;
3331 }
3332
3333 static void resume_all_vcpus(void)
3334 {
3335 }
3336
3337 static void pause_all_vcpus(void)
3338 {
3339 }
3340
3341 void qemu_cpu_kick(void *env)
3342 {
3343 return;
3344 }
3345
3346 void qemu_notify_event(void)
3347 {
3348 CPUState *env = cpu_single_env;
3349
3350 if (env) {
3351 cpu_exit(env);
3352 }
3353 }
3354
3355 void qemu_mutex_lock_iothread(void) {}
3356 void qemu_mutex_unlock_iothread(void) {}
3357
3358 void vm_stop(int reason)
3359 {
3360 do_vm_stop(reason);
3361 }
3362
3363 #else /* CONFIG_IOTHREAD */
3364
3365 #include "qemu-thread.h"
3366
3367 QemuMutex qemu_global_mutex;
3368 static QemuMutex qemu_fair_mutex;
3369
3370 static QemuThread io_thread;
3371
3372 static QemuThread *tcg_cpu_thread;
3373 static QemuCond *tcg_halt_cond;
3374
3375 static int qemu_system_ready;
3376 /* cpu creation */
3377 static QemuCond qemu_cpu_cond;
3378 /* system init */
3379 static QemuCond qemu_system_cond;
3380 static QemuCond qemu_pause_cond;
3381
3382 static void block_io_signals(void);
3383 static void unblock_io_signals(void);
3384 static int tcg_has_work(void);
3385
3386 static int qemu_init_main_loop(void)
3387 {
3388 int ret;
3389
3390 ret = qemu_event_init();
3391 if (ret)
3392 return ret;
3393
3394 qemu_cond_init(&qemu_pause_cond);
3395 qemu_mutex_init(&qemu_fair_mutex);
3396 qemu_mutex_init(&qemu_global_mutex);
3397 qemu_mutex_lock(&qemu_global_mutex);
3398
3399 unblock_io_signals();
3400 qemu_thread_self(&io_thread);
3401
3402 return 0;
3403 }
3404
3405 static void qemu_wait_io_event(CPUState *env)
3406 {
3407 while (!tcg_has_work())
3408 qemu_cond_timedwait(env->halt_cond, &qemu_global_mutex, 1000);
3409
3410 qemu_mutex_unlock(&qemu_global_mutex);
3411
3412 /*
3413 * Users of qemu_global_mutex can be starved, having no chance
3414 * to acquire it since this path will get to it first.
3415 * So use another lock to provide fairness.
3416 */
3417 qemu_mutex_lock(&qemu_fair_mutex);
3418 qemu_mutex_unlock(&qemu_fair_mutex);
3419
3420 qemu_mutex_lock(&qemu_global_mutex);
3421 if (env->stop) {
3422 env->stop = 0;
3423 env->stopped = 1;
3424 qemu_cond_signal(&qemu_pause_cond);
3425 }
3426 }
3427
3428 static int qemu_cpu_exec(CPUState *env);
3429
3430 static void *kvm_cpu_thread_fn(void *arg)
3431 {
3432 CPUState *env = arg;
3433
3434 block_io_signals();
3435 qemu_thread_self(env->thread);
3436 if (kvm_enabled())
3437 kvm_init_vcpu(env);
3438
3439 /* signal CPU creation */
3440 qemu_mutex_lock(&qemu_global_mutex);
3441 env->created = 1;
3442 qemu_cond_signal(&qemu_cpu_cond);
3443
3444 /* and wait for machine initialization */
3445 while (!qemu_system_ready)
3446 qemu_cond_timedwait(&qemu_system_cond, &qemu_global_mutex, 100);
3447
3448 while (1) {
3449 if (cpu_can_run(env))
3450 qemu_cpu_exec(env);
3451 qemu_wait_io_event(env);
3452 }
3453
3454 return NULL;
3455 }
3456
3457 static void tcg_cpu_exec(void);
3458
3459 static void *tcg_cpu_thread_fn(void *arg)
3460 {
3461 CPUState *env = arg;
3462
3463 block_io_signals();
3464 qemu_thread_self(env->thread);
3465
3466 /* signal CPU creation */
3467 qemu_mutex_lock(&qemu_global_mutex);
3468 for (env = first_cpu; env != NULL; env = env->next_cpu)
3469 env->created = 1;
3470 qemu_cond_signal(&qemu_cpu_cond);
3471
3472 /* and wait for machine initialization */
3473 while (!qemu_system_ready)
3474 qemu_cond_timedwait(&qemu_system_cond, &qemu_global_mutex, 100);
3475
3476 while (1) {
3477 tcg_cpu_exec();
3478 qemu_wait_io_event(cur_cpu);
3479 }
3480
3481 return NULL;
3482 }
3483
3484 void qemu_cpu_kick(void *_env)
3485 {
3486 CPUState *env = _env;
3487 qemu_cond_broadcast(env->halt_cond);
3488 if (kvm_enabled())
3489 qemu_thread_signal(env->thread, SIGUSR1);
3490 }
3491
3492 int qemu_cpu_self(void *_env)
3493 {
3494 CPUState *env = _env;
3495 QemuThread this;
3496
3497 qemu_thread_self(&this);
3498
3499 return qemu_thread_equal(&this, env->thread);
3500 }
3501
3502 static void cpu_signal(int sig)
3503 {
3504 if (cpu_single_env)
3505 cpu_exit(cpu_single_env);
3506 }
3507
3508 static void block_io_signals(void)
3509 {
3510 sigset_t set;
3511 struct sigaction sigact;
3512
3513 sigemptyset(&set);
3514 sigaddset(&set, SIGUSR2);
3515 sigaddset(&set, SIGIO);
3516 sigaddset(&set, SIGALRM);
3517 pthread_sigmask(SIG_BLOCK, &set, NULL);
3518
3519 sigemptyset(&set);
3520 sigaddset(&set, SIGUSR1);
3521 pthread_sigmask(SIG_UNBLOCK, &set, NULL);
3522
3523 memset(&sigact, 0, sizeof(sigact));
3524 sigact.sa_handler = cpu_signal;
3525 sigaction(SIGUSR1, &sigact, NULL);
3526 }
3527
3528 static void unblock_io_signals(void)
3529 {
3530 sigset_t set;
3531
3532 sigemptyset(&set);
3533 sigaddset(&set, SIGUSR2);
3534 sigaddset(&set, SIGIO);
3535 sigaddset(&set, SIGALRM);
3536 pthread_sigmask(SIG_UNBLOCK, &set, NULL);
3537
3538 sigemptyset(&set);
3539 sigaddset(&set, SIGUSR1);
3540 pthread_sigmask(SIG_BLOCK, &set, NULL);
3541 }
3542
3543 static void qemu_signal_lock(unsigned int msecs)
3544 {
3545 qemu_mutex_lock(&qemu_fair_mutex);
3546
3547 while (qemu_mutex_trylock(&qemu_global_mutex)) {
3548 qemu_thread_signal(tcg_cpu_thread, SIGUSR1);
3549 if (!qemu_mutex_timedlock(&qemu_global_mutex, msecs))
3550 break;
3551 }
3552 qemu_mutex_unlock(&qemu_fair_mutex);
3553 }
3554
3555 void qemu_mutex_lock_iothread(void)
3556 {
3557 if (kvm_enabled()) {
3558 qemu_mutex_lock(&qemu_fair_mutex);
3559 qemu_mutex_lock(&qemu_global_mutex);
3560 qemu_mutex_unlock(&qemu_fair_mutex);
3561 } else
3562 qemu_signal_lock(100);
3563 }
3564
3565 void qemu_mutex_unlock_iothread(void)
3566 {
3567 qemu_mutex_unlock(&qemu_global_mutex);
3568 }
3569
3570 static int all_vcpus_paused(void)
3571 {
3572 CPUState *penv = first_cpu;
3573
3574 while (penv) {
3575 if (!penv->stopped)
3576 return 0;
3577 penv = (CPUState *)penv->next_cpu;
3578 }
3579
3580 return 1;
3581 }
3582
3583 static void pause_all_vcpus(void)
3584 {
3585 CPUState *penv = first_cpu;
3586
3587 while (penv) {
3588 penv->stop = 1;
3589 qemu_thread_signal(penv->thread, SIGUSR1);
3590 qemu_cpu_kick(penv);
3591 penv = (CPUState *)penv->next_cpu;
3592 }
3593
3594 while (!all_vcpus_paused()) {
3595 qemu_cond_timedwait(&qemu_pause_cond, &qemu_global_mutex, 100);
3596 penv = first_cpu;
3597 while (penv) {
3598 qemu_thread_signal(penv->thread, SIGUSR1);
3599 penv = (CPUState *)penv->next_cpu;
3600 }
3601 }
3602 }
3603
3604 static void resume_all_vcpus(void)
3605 {
3606 CPUState *penv = first_cpu;
3607
3608 while (penv) {
3609 penv->stop = 0;
3610 penv->stopped = 0;
3611 qemu_thread_signal(penv->thread, SIGUSR1);
3612 qemu_cpu_kick(penv);
3613 penv = (CPUState *)penv->next_cpu;
3614 }
3615 }
3616
3617 static void tcg_init_vcpu(void *_env)
3618 {
3619 CPUState *env = _env;
3620 /* share a single thread for all cpus with TCG */
3621 if (!tcg_cpu_thread) {
3622 env->thread = qemu_mallocz(sizeof(QemuThread));
3623 env->halt_cond = qemu_mallocz(sizeof(QemuCond));
3624 qemu_cond_init(env->halt_cond);
3625 qemu_thread_create(env->thread, tcg_cpu_thread_fn, env);
3626 while (env->created == 0)
3627 qemu_cond_timedwait(&qemu_cpu_cond, &qemu_global_mutex, 100);
3628 tcg_cpu_thread = env->thread;
3629 tcg_halt_cond = env->halt_cond;
3630 } else {
3631 env->thread = tcg_cpu_thread;
3632 env->halt_cond = tcg_halt_cond;
3633 }
3634 }
3635
3636 static void kvm_start_vcpu(CPUState *env)
3637 {
3638 env->thread = qemu_mallocz(sizeof(QemuThread));
3639 env->halt_cond = qemu_mallocz(sizeof(QemuCond));
3640 qemu_cond_init(env->halt_cond);
3641 qemu_thread_create(env->thread, kvm_cpu_thread_fn, env);
3642 while (env->created == 0)
3643 qemu_cond_timedwait(&qemu_cpu_cond, &qemu_global_mutex, 100);
3644 }
3645
3646 void qemu_init_vcpu(void *_env)
3647 {
3648 CPUState *env = _env;
3649
3650 env->nr_cores = smp_cores;
3651 env->nr_threads = smp_threads;
3652 if (kvm_enabled())
3653 kvm_start_vcpu(env);
3654 else
3655 tcg_init_vcpu(env);
3656 }
3657
3658 void qemu_notify_event(void)
3659 {
3660 qemu_event_increment();
3661 }
3662
3663 void vm_stop(int reason)
3664 {
3665 QemuThread me;
3666 qemu_thread_self(&me);
3667
3668 if (!qemu_thread_equal(&me, &io_thread)) {
3669 qemu_system_vmstop_request(reason);
3670 /*
3671 * FIXME: should not return to device code in case
3672 * vm_stop() has been requested.
3673 */
3674 if (cpu_single_env) {
3675 cpu_exit(cpu_single_env);
3676 cpu_single_env->stop = 1;
3677 }
3678 return;
3679 }
3680 do_vm_stop(reason);
3681 }
3682
3683 #endif
3684
3685
3686 #ifdef _WIN32
3687 static void host_main_loop_wait(int *timeout)
3688 {
3689 int ret, ret2, i;
3690 PollingEntry *pe;
3691
3692
3693 /* XXX: need to suppress polling by better using win32 events */
3694 ret = 0;
3695 for(pe = first_polling_entry; pe != NULL; pe = pe->next) {
3696 ret |= pe->func(pe->opaque);
3697 }
3698 if (ret == 0) {
3699 int err;
3700 WaitObjects *w = &wait_objects;
3701
3702 ret = WaitForMultipleObjects(w->num, w->events, FALSE, *timeout);
3703 if (WAIT_OBJECT_0 + 0 <= ret && ret <= WAIT_OBJECT_0 + w->num - 1) {
3704 if (w->func[ret - WAIT_OBJECT_0])
3705 w->func[ret - WAIT_OBJECT_0](w->opaque[ret - WAIT_OBJECT_0]);
3706
3707 /* Check for additional signaled events */
3708 for(i = (ret - WAIT_OBJECT_0 + 1); i < w->num; i++) {
3709
3710 /* Check if event is signaled */
3711 ret2 = WaitForSingleObject(w->events[i], 0);
3712 if(ret2 == WAIT_OBJECT_0) {
3713 if (w->func[i])
3714 w->func[i](w->opaque[i]);
3715 } else if (ret2 == WAIT_TIMEOUT) {
3716 } else {
3717 err = GetLastError();
3718 fprintf(stderr, "WaitForSingleObject error %d %d\n", i, err);
3719 }
3720 }
3721 } else if (ret == WAIT_TIMEOUT) {
3722 } else {
3723 err = GetLastError();
3724 fprintf(stderr, "WaitForMultipleObjects error %d %d\n", ret, err);
3725 }
3726 }
3727
3728 *timeout = 0;
3729 }
3730 #else
3731 static void host_main_loop_wait(int *timeout)
3732 {
3733 }
3734 #endif
3735
3736 void main_loop_wait(int timeout)
3737 {
3738 IOHandlerRecord *ioh;
3739 fd_set rfds, wfds, xfds;
3740 int ret, nfds;
3741 struct timeval tv;
3742
3743 qemu_bh_update_timeout(&timeout);
3744
3745 host_main_loop_wait(&timeout);
3746
3747 /* poll any events */
3748 /* XXX: separate device handlers from system ones */
3749 nfds = -1;
3750 FD_ZERO(&rfds);
3751 FD_ZERO(&wfds);
3752 FD_ZERO(&xfds);
3753 for(ioh = first_io_handler; ioh != NULL; ioh = ioh->next) {
3754 if (ioh->deleted)
3755 continue;
3756 if (ioh->fd_read &&
3757 (!ioh->fd_read_poll ||
3758 ioh->fd_read_poll(ioh->opaque) != 0)) {
3759 FD_SET(ioh->fd, &rfds);
3760 if (ioh->fd > nfds)
3761 nfds = ioh->fd;
3762 }
3763 if (ioh->fd_write) {
3764 FD_SET(ioh->fd, &wfds);
3765 if (ioh->fd > nfds)
3766 nfds = ioh->fd;
3767 }
3768 }
3769
3770 tv.tv_sec = timeout / 1000;
3771 tv.tv_usec = (timeout % 1000) * 1000;
3772
3773 slirp_select_fill(&nfds, &rfds, &wfds, &xfds);
3774
3775 qemu_mutex_unlock_iothread();
3776 ret = select(nfds + 1, &rfds, &wfds, &xfds, &tv);
3777 qemu_mutex_lock_iothread();
3778 if (ret > 0) {
3779 IOHandlerRecord **pioh;
3780
3781 for(ioh = first_io_handler; ioh != NULL; ioh = ioh->next) {
3782 if (!ioh->deleted && ioh->fd_read && FD_ISSET(ioh->fd, &rfds)) {
3783 ioh->fd_read(ioh->opaque);
3784 }
3785 if (!ioh->deleted && ioh->fd_write && FD_ISSET(ioh->fd, &wfds)) {
3786 ioh->fd_write(ioh->opaque);
3787 }
3788 }
3789
3790 /* remove deleted IO handlers */
3791 pioh = &first_io_handler;
3792 while (*pioh) {
3793 ioh = *pioh;
3794 if (ioh->deleted) {
3795 *pioh = ioh->next;
3796 qemu_free(ioh);
3797 } else
3798 pioh = &ioh->next;
3799 }
3800 }
3801
3802 slirp_select_poll(&rfds, &wfds, &xfds, (ret < 0));
3803
3804 /* rearm timer, if not periodic */
3805 if (alarm_timer->flags & ALARM_FLAG_EXPIRED) {
3806 alarm_timer->flags &= ~ALARM_FLAG_EXPIRED;
3807 qemu_rearm_alarm_timer(alarm_timer);
3808 }
3809
3810 /* vm time timers */
3811 if (vm_running) {
3812 if (!cur_cpu || likely(!(cur_cpu->singlestep_enabled & SSTEP_NOTIMER)))
3813 qemu_run_timers(&active_timers[QEMU_CLOCK_VIRTUAL],
3814 qemu_get_clock(vm_clock));
3815 }
3816
3817 /* real time timers */
3818 qemu_run_timers(&active_timers[QEMU_CLOCK_REALTIME],
3819 qemu_get_clock(rt_clock));
3820
3821 qemu_run_timers(&active_timers[QEMU_CLOCK_HOST],
3822 qemu_get_clock(host_clock));
3823
3824 /* Check bottom-halves last in case any of the earlier events triggered
3825 them. */
3826 qemu_bh_poll();
3827
3828 }
3829
3830 static int qemu_cpu_exec(CPUState *env)
3831 {
3832 int ret;
3833 #ifdef CONFIG_PROFILER
3834 int64_t ti;
3835 #endif
3836
3837 #ifdef CONFIG_PROFILER
3838 ti = profile_getclock();
3839 #endif
3840 if (use_icount) {
3841 int64_t count;
3842 int decr;
3843 qemu_icount -= (env->icount_decr.u16.low + env->icount_extra);
3844 env->icount_decr.u16.low = 0;
3845 env->icount_extra = 0;
3846 count = qemu_next_deadline();
3847 count = (count + (1 << icount_time_shift) - 1)
3848 >> icount_time_shift;
3849 qemu_icount += count;
3850 decr = (count > 0xffff) ? 0xffff : count;
3851 count -= decr;
3852 env->icount_decr.u16.low = decr;
3853 env->icount_extra = count;
3854 }
3855 ret = cpu_exec(env);
3856 #ifdef CONFIG_PROFILER
3857 qemu_time += profile_getclock() - ti;
3858 #endif
3859 if (use_icount) {
3860 /* Fold pending instructions back into the
3861 instruction counter, and clear the interrupt flag. */
3862 qemu_icount -= (env->icount_decr.u16.low
3863 + env->icount_extra);
3864 env->icount_decr.u32 = 0;
3865 env->icount_extra = 0;
3866 }
3867 return ret;
3868 }
3869
3870 static void tcg_cpu_exec(void)
3871 {
3872 int ret = 0;
3873
3874 if (next_cpu == NULL)
3875 next_cpu = first_cpu;
3876 for (; next_cpu != NULL; next_cpu = next_cpu->next_cpu) {
3877 CPUState *env = cur_cpu = next_cpu;
3878
3879 if (!vm_running)
3880 break;
3881 if (timer_alarm_pending) {
3882 timer_alarm_pending = 0;
3883 break;
3884 }
3885 if (cpu_can_run(env))
3886 ret = qemu_cpu_exec(env);
3887 if (ret == EXCP_DEBUG) {
3888 gdb_set_stop_cpu(env);
3889 debug_requested = 1;
3890 break;
3891 }
3892 }
3893 }
3894
3895 static int cpu_has_work(CPUState *env)
3896 {
3897 if (env->stop)
3898 return 1;
3899 if (env->stopped)
3900 return 0;
3901 if (!env->halted)
3902 return 1;
3903 if (qemu_cpu_has_work(env))
3904 return 1;
3905 return 0;
3906 }
3907
3908 static int tcg_has_work(void)
3909 {
3910 CPUState *env;
3911
3912 for (env = first_cpu; env != NULL; env = env->next_cpu)
3913 if (cpu_has_work(env))
3914 return 1;
3915 return 0;
3916 }
3917
3918 static int qemu_calculate_timeout(void)
3919 {
3920 #ifndef CONFIG_IOTHREAD
3921 int timeout;
3922
3923 if (!vm_running)
3924 timeout = 5000;
3925 else if (tcg_has_work())
3926 timeout = 0;
3927 else if (!use_icount)
3928 timeout = 5000;
3929 else {
3930 /* XXX: use timeout computed from timers */
3931 int64_t add;
3932 int64_t delta;
3933 /* Advance virtual time to the next event. */
3934 if (use_icount == 1) {
3935 /* When not using an adaptive execution frequency
3936 we tend to get badly out of sync with real time,
3937 so just delay for a reasonable amount of time. */
3938 delta = 0;
3939 } else {
3940 delta = cpu_get_icount() - cpu_get_clock();
3941 }
3942 if (delta > 0) {
3943 /* If virtual time is ahead of real time then just
3944 wait for IO. */
3945 timeout = (delta / 1000000) + 1;
3946 } else {
3947 /* Wait for either IO to occur or the next
3948 timer event. */
3949 add = qemu_next_deadline();
3950 /* We advance the timer before checking for IO.
3951 Limit the amount we advance so that early IO
3952 activity won't get the guest too far ahead. */
3953 if (add > 10000000)
3954 add = 10000000;
3955 delta += add;
3956 add = (add + (1 << icount_time_shift) - 1)
3957 >> icount_time_shift;
3958 qemu_icount += add;
3959 timeout = delta / 1000000;
3960 if (timeout < 0)
3961 timeout = 0;
3962 }
3963 }
3964
3965 return timeout;
3966 #else /* CONFIG_IOTHREAD */
3967 return 1000;
3968 #endif
3969 }
3970
3971 static int vm_can_run(void)
3972 {
3973 if (powerdown_requested)
3974 return 0;
3975 if (reset_requested)
3976 return 0;
3977 if (shutdown_requested)
3978 return 0;
3979 if (debug_requested)
3980 return 0;
3981 return 1;
3982 }
3983
3984 qemu_irq qemu_system_powerdown;
3985
3986 static void main_loop(void)
3987 {
3988 int r;
3989
3990 #ifdef CONFIG_IOTHREAD
3991 qemu_system_ready = 1;
3992 qemu_cond_broadcast(&qemu_system_cond);
3993 #endif
3994
3995 for (;;) {
3996 do {
3997 #ifdef CONFIG_PROFILER
3998 int64_t ti;
3999 #endif
4000 #ifndef CONFIG_IOTHREAD
4001 tcg_cpu_exec();
4002 #endif
4003 #ifdef CONFIG_PROFILER
4004 ti = profile_getclock();
4005 #endif
4006 main_loop_wait(qemu_calculate_timeout());
4007 #ifdef CONFIG_PROFILER
4008 dev_time += profile_getclock() - ti;
4009 #endif
4010 } while (vm_can_run());
4011
4012 if (qemu_debug_requested()) {
4013 monitor_protocol_event(QEVENT_DEBUG, NULL);
4014 vm_stop(EXCP_DEBUG);
4015 }
4016 if (qemu_shutdown_requested()) {
4017 monitor_protocol_event(QEVENT_SHUTDOWN, NULL);
4018 if (no_shutdown) {
4019 vm_stop(0);
4020 no_shutdown = 0;
4021 } else
4022 break;
4023 }
4024 if (qemu_reset_requested()) {
4025 monitor_protocol_event(QEVENT_RESET, NULL);
4026 pause_all_vcpus();
4027 qemu_system_reset();
4028 resume_all_vcpus();
4029 }
4030 if (qemu_powerdown_requested()) {
4031 monitor_protocol_event(QEVENT_POWERDOWN, NULL);
4032 qemu_irq_raise(qemu_system_powerdown);
4033 }
4034 if ((r = qemu_vmstop_requested())) {
4035 monitor_protocol_event(QEVENT_STOP, NULL);
4036 vm_stop(r);
4037 }
4038 }
4039 pause_all_vcpus();
4040 }
4041
4042 static void version(void)
4043 {
4044 printf("QEMU PC emulator version " QEMU_VERSION QEMU_PKGVERSION ", Copyright (c) 2003-2008 Fabrice Bellard\n");
4045 }
4046
4047 static void help(int exitcode)
4048 {
4049 const char *options_help =
4050 #define DEF(option, opt_arg, opt_enum, opt_help) \
4051 opt_help
4052 #define DEFHEADING(text) stringify(text) "\n"
4053 #include "qemu-options.h"
4054 #undef DEF
4055 #undef DEFHEADING
4056 #undef GEN_DOCS
4057 ;
4058 version();
4059 printf("usage: %s [options] [disk_image]\n"
4060 "\n"
4061 "'disk_image' is a raw hard image image for IDE hard disk 0\n"
4062 "\n"
4063 "%s\n"
4064 "During emulation, the following keys are useful:\n"
4065 "ctrl-alt-f toggle full screen\n"
4066 "ctrl-alt-n switch to virtual console 'n'\n"
4067 "ctrl-alt toggle mouse and keyboard grab\n"
4068 "\n"
4069 "When using -nographic, press 'ctrl-a h' to get some help.\n",
4070 "qemu",
4071 options_help);
4072 exit(exitcode);
4073 }
4074
4075 #define HAS_ARG 0x0001
4076
4077 enum {
4078 #define DEF(option, opt_arg, opt_enum, opt_help) \
4079 opt_enum,
4080 #define DEFHEADING(text)
4081 #include "qemu-options.h"
4082 #undef DEF
4083 #undef DEFHEADING
4084 #undef GEN_DOCS
4085 };
4086
4087 typedef struct QEMUOption {
4088 const char *name;
4089 int flags;
4090 int index;
4091 } QEMUOption;
4092
4093 static const QEMUOption qemu_options[] = {
4094 { "h", 0, QEMU_OPTION_h },
4095 #define DEF(option, opt_arg, opt_enum, opt_help) \
4096 { option, opt_arg, opt_enum },
4097 #define DEFHEADING(text)
4098 #include "qemu-options.h"
4099 #undef DEF
4100 #undef DEFHEADING
4101 #undef GEN_DOCS
4102 { NULL },
4103 };
4104
4105 #ifdef HAS_AUDIO
4106 struct soundhw soundhw[] = {
4107 #ifdef HAS_AUDIO_CHOICE
4108 #if defined(TARGET_I386) || defined(TARGET_MIPS)
4109 {
4110 "pcspk",
4111 "PC speaker",
4112 0,
4113 1,
4114 { .init_isa = pcspk_audio_init }
4115 },
4116 #endif
4117
4118 #ifdef CONFIG_SB16
4119 {
4120 "sb16",
4121 "Creative Sound Blaster 16",
4122 0,
4123 1,
4124 { .init_isa = SB16_init }
4125 },
4126 #endif
4127
4128 #ifdef CONFIG_CS4231A
4129 {
4130 "cs4231a",
4131 "CS4231A",
4132 0,
4133 1,
4134 { .init_isa = cs4231a_init }
4135 },
4136 #endif
4137
4138 #ifdef CONFIG_ADLIB
4139 {
4140 "adlib",
4141 #ifdef HAS_YMF262
4142 "Yamaha YMF262 (OPL3)",
4143 #else
4144 "Yamaha YM3812 (OPL2)",
4145 #endif
4146 0,
4147 1,
4148 { .init_isa = Adlib_init }
4149 },
4150 #endif
4151
4152 #ifdef CONFIG_GUS
4153 {
4154 "gus",
4155 "Gravis Ultrasound GF1",
4156 0,
4157 1,
4158 { .init_isa = GUS_init }
4159 },
4160 #endif
4161
4162 #ifdef CONFIG_AC97
4163 {
4164 "ac97",
4165 "Intel 82801AA AC97 Audio",
4166 0,
4167 0,
4168 { .init_pci = ac97_init }
4169 },
4170 #endif
4171
4172 #ifdef CONFIG_ES1370
4173 {
4174 "es1370",
4175 "ENSONIQ AudioPCI ES1370",
4176 0,
4177 0,
4178 { .init_pci = es1370_init }
4179 },
4180 #endif
4181
4182 #endif /* HAS_AUDIO_CHOICE */
4183
4184 { NULL, NULL, 0, 0, { NULL } }
4185 };
4186
4187 static void select_soundhw (const char *optarg)
4188 {
4189 struct soundhw *c;
4190
4191 if (*optarg == '?') {
4192 show_valid_cards:
4193
4194 printf ("Valid sound card names (comma separated):\n");
4195 for (c = soundhw; c->name; ++c) {
4196 printf ("%-11s %s\n", c->name, c->descr);
4197 }
4198 printf ("\n-soundhw all will enable all of the above\n");
4199 exit (*optarg != '?');
4200 }
4201 else {
4202 size_t l;
4203 const char *p;
4204 char *e;
4205 int bad_card = 0;
4206
4207 if (!strcmp (optarg, "all")) {
4208 for (c = soundhw; c->name; ++c) {
4209 c->enabled = 1;
4210 }
4211 return;
4212 }
4213
4214 p = optarg;
4215 while (*p) {
4216 e = strchr (p, ',');
4217 l = !e ? strlen (p) : (size_t) (e - p);
4218
4219 for (c = soundhw; c->name; ++c) {
4220 if (!strncmp (c->name, p, l) && !c->name[l]) {
4221 c->enabled = 1;
4222 break;
4223 }
4224 }
4225
4226 if (!c->name) {
4227 if (l > 80) {
4228 fprintf (stderr,
4229 "Unknown sound card name (too big to show)\n");
4230 }
4231 else {
4232 fprintf (stderr, "Unknown sound card name `%.*s'\n",
4233 (int) l, p);
4234 }
4235 bad_card = 1;
4236 }
4237 p += l + (e != NULL);
4238 }
4239
4240 if (bad_card)
4241 goto show_valid_cards;
4242 }
4243 }
4244 #endif
4245
4246 static void select_vgahw (const char *p)
4247 {
4248 const char *opts;
4249
4250 default_vga = 0;
4251 vga_interface_type = VGA_NONE;
4252 if (strstart(p, "std", &opts)) {
4253 vga_interface_type = VGA_STD;
4254 } else if (strstart(p, "cirrus", &opts)) {
4255 vga_interface_type = VGA_CIRRUS;
4256 } else if (strstart(p, "vmware", &opts)) {
4257 vga_interface_type = VGA_VMWARE;
4258 } else if (strstart(p, "xenfb", &opts)) {
4259 vga_interface_type = VGA_XENFB;
4260 } else if (!strstart(p, "none", &opts)) {
4261 invalid_vga:
4262 fprintf(stderr, "Unknown vga type: %s\n", p);
4263 exit(1);
4264 }
4265 while (*opts) {
4266 const char *nextopt;
4267
4268 if (strstart(opts, ",retrace=", &nextopt)) {
4269 opts = nextopt;
4270 if (strstart(opts, "dumb", &nextopt))
4271 vga_retrace_method = VGA_RETRACE_DUMB;
4272 else if (strstart(opts, "precise", &nextopt))
4273 vga_retrace_method = VGA_RETRACE_PRECISE;
4274 else goto invalid_vga;
4275 } else goto invalid_vga;
4276 opts = nextopt;
4277 }
4278 }
4279
4280 #ifdef TARGET_I386
4281 static int balloon_parse(const char *arg)
4282 {
4283 QemuOpts *opts;
4284
4285 if (strcmp(arg, "none") == 0) {
4286 return 0;
4287 }
4288
4289 if (!strncmp(arg, "virtio", 6)) {
4290 if (arg[6] == ',') {
4291 /* have params -> parse them */
4292 opts = qemu_opts_parse(&qemu_device_opts, arg+7, NULL);
4293 if (!opts)
4294 return -1;
4295 } else {
4296 /* create empty opts */
4297 opts = qemu_opts_create(&qemu_device_opts, NULL, 0);
4298 }
4299 qemu_opt_set(opts, "driver", "virtio-balloon-pci");
4300 return 0;
4301 }
4302
4303 return -1;
4304 }
4305 #endif
4306
4307 #ifdef _WIN32
4308 static BOOL WINAPI qemu_ctrl_handler(DWORD type)
4309 {
4310 exit(STATUS_CONTROL_C_EXIT);
4311 return TRUE;
4312 }
4313 #endif
4314
4315 int qemu_uuid_parse(const char *str, uint8_t *uuid)
4316 {
4317 int ret;
4318
4319 if(strlen(str) != 36)
4320 return -1;
4321
4322 ret = sscanf(str, UUID_FMT, &uuid[0], &uuid[1], &uuid[2], &uuid[3],
4323 &uuid[4], &uuid[5], &uuid[6], &uuid[7], &uuid[8], &uuid[9],
4324 &uuid[10], &uuid[11], &uuid[12], &uuid[13], &uuid[14], &uuid[15]);
4325
4326 if(ret != 16)
4327 return -1;
4328
4329 #ifdef TARGET_I386
4330 smbios_add_field(1, offsetof(struct smbios_type_1, uuid), 16, uuid);
4331 #endif
4332
4333 return 0;
4334 }
4335
4336 #ifndef _WIN32
4337
4338 static void termsig_handler(int signal)
4339 {
4340 qemu_system_shutdown_request();
4341 }
4342
4343 static void sigchld_handler(int signal)
4344 {
4345 waitpid(-1, NULL, WNOHANG);
4346 }
4347
4348 static void sighandler_setup(void)
4349 {
4350 struct sigaction act;
4351
4352 memset(&act, 0, sizeof(act));
4353 act.sa_handler = termsig_handler;
4354 sigaction(SIGINT, &act, NULL);
4355 sigaction(SIGHUP, &act, NULL);
4356 sigaction(SIGTERM, &act, NULL);
4357
4358 act.sa_handler = sigchld_handler;
4359 act.sa_flags = SA_NOCLDSTOP;
4360 sigaction(SIGCHLD, &act, NULL);
4361 }
4362
4363 #endif
4364
4365 #ifdef _WIN32
4366 /* Look for support files in the same directory as the executable. */
4367 static char *find_datadir(const char *argv0)
4368 {
4369 char *p;
4370 char buf[MAX_PATH];
4371 DWORD len;
4372
4373 len = GetModuleFileName(NULL, buf, sizeof(buf) - 1);
4374 if (len == 0) {
4375 return NULL;
4376 }
4377
4378 buf[len] = 0;
4379 p = buf + len - 1;
4380 while (p != buf && *p != '\\')
4381 p--;
4382 *p = 0;
4383 if (access(buf, R_OK) == 0) {
4384 return qemu_strdup(buf);
4385 }
4386 return NULL;
4387 }
4388 #else /* !_WIN32 */
4389
4390 /* Find a likely location for support files using the location of the binary.
4391 For installed binaries this will be "$bindir/../share/qemu". When
4392 running from the build tree this will be "$bindir/../pc-bios". */
4393 #define SHARE_SUFFIX "/share/qemu"
4394 #define BUILD_SUFFIX "/pc-bios"
4395 static char *find_datadir(const char *argv0)
4396 {
4397 char *dir;
4398 char *p = NULL;
4399 char *res;
4400 char buf[PATH_MAX];
4401 size_t max_len;
4402
4403 #if defined(__linux__)
4404 {
4405 int len;
4406 len = readlink("/proc/self/exe", buf, sizeof(buf) - 1);
4407 if (len > 0) {
4408 buf[len] = 0;
4409 p = buf;
4410 }
4411 }
4412 #elif defined(__FreeBSD__)
4413 {
4414 int len;
4415 len = readlink("/proc/curproc/file", buf, sizeof(buf) - 1);
4416 if (len > 0) {
4417 buf[len] = 0;
4418 p = buf;
4419 }
4420 }
4421 #endif
4422 /* If we don't have any way of figuring out the actual executable
4423 location then try argv[0]. */
4424 if (!p) {
4425 p = realpath(argv0, buf);
4426 if (!p) {
4427 return NULL;
4428 }
4429 }
4430 dir = dirname(p);
4431 dir = dirname(dir);
4432
4433 max_len = strlen(dir) +
4434 MAX(strlen(SHARE_SUFFIX), strlen(BUILD_SUFFIX)) + 1;
4435 res = qemu_mallocz(max_len);
4436 snprintf(res, max_len, "%s%s", dir, SHARE_SUFFIX);
4437 if (access(res, R_OK)) {
4438 snprintf(res, max_len, "%s%s", dir, BUILD_SUFFIX);
4439 if (access(res, R_OK)) {
4440 qemu_free(res);
4441 res = NULL;
4442 }
4443 }
4444
4445 return res;
4446 }
4447 #undef SHARE_SUFFIX
4448 #undef BUILD_SUFFIX
4449 #endif
4450
4451 char *qemu_find_file(int type, const char *name)
4452 {
4453 int len;
4454 const char *subdir;
4455 char *buf;
4456
4457 /* If name contains path separators then try it as a straight path. */
4458 if ((strchr(name, '/') || strchr(name, '\\'))
4459 && access(name, R_OK) == 0) {
4460 return qemu_strdup(name);
4461 }
4462 switch (type) {
4463 case QEMU_FILE_TYPE_BIOS:
4464 subdir = "";
4465 break;
4466 case QEMU_FILE_TYPE_KEYMAP:
4467 subdir = "keymaps/";
4468 break;
4469 default:
4470 abort();
4471 }
4472 len = strlen(data_dir) + strlen(name) + strlen(subdir) + 2;
4473 buf = qemu_mallocz(len);
4474 snprintf(buf, len, "%s/%s%s", data_dir, subdir, name);
4475 if (access(buf, R_OK)) {
4476 qemu_free(buf);
4477 return NULL;
4478 }
4479 return buf;
4480 }
4481
4482 static int device_help_func(QemuOpts *opts, void *opaque)
4483 {
4484 return qdev_device_help(opts);
4485 }
4486
4487 static int device_init_func(QemuOpts *opts, void *opaque)
4488 {
4489 DeviceState *dev;
4490
4491 dev = qdev_device_add(opts);
4492 if (!dev)
4493 return -1;
4494 return 0;
4495 }
4496
4497 static int chardev_init_func(QemuOpts *opts, void *opaque)
4498 {
4499 CharDriverState *chr;
4500
4501 chr = qemu_chr_open_opts(opts, NULL);
4502 if (!chr)
4503 return -1;
4504 return 0;
4505 }
4506
4507 static int mon_init_func(QemuOpts *opts, void *opaque)
4508 {
4509 CharDriverState *chr;
4510 const char *chardev;
4511 const char *mode;
4512 int flags;
4513
4514 mode = qemu_opt_get(opts, "mode");
4515 if (mode == NULL) {
4516 mode = "readline";
4517 }
4518 if (strcmp(mode, "readline") == 0) {
4519 flags = MONITOR_USE_READLINE;
4520 } else if (strcmp(mode, "control") == 0) {
4521 flags = MONITOR_USE_CONTROL;
4522 } else {
4523 fprintf(stderr, "unknown monitor mode \"%s\"\n", mode);
4524 exit(1);
4525 }
4526
4527 if (qemu_opt_get_bool(opts, "default", 0))
4528 flags |= MONITOR_IS_DEFAULT;
4529
4530 chardev = qemu_opt_get(opts, "chardev");
4531 chr = qemu_chr_find(chardev);
4532 if (chr == NULL) {
4533 fprintf(stderr, "chardev \"%s\" not found\n", chardev);
4534 exit(1);
4535 }
4536
4537 monitor_init(chr, flags);
4538 return 0;
4539 }
4540
4541 static void monitor_parse(const char *optarg, const char *mode)
4542 {
4543 static int monitor_device_index = 0;
4544 QemuOpts *opts;
4545 const char *p;
4546 char label[32];
4547 int def = 0;
4548
4549 if (strstart(optarg, "chardev:", &p)) {
4550 snprintf(label, sizeof(label), "%s", p);
4551 } else {
4552 if (monitor_device_index) {
4553 snprintf(label, sizeof(label), "monitor%d",
4554 monitor_device_index);
4555 } else {
4556 snprintf(label, sizeof(label), "monitor");
4557 def = 1;
4558 }
4559 opts = qemu_chr_parse_compat(label, optarg);
4560 if (!opts) {
4561 fprintf(stderr, "parse error: %s\n", optarg);
4562 exit(1);
4563 }
4564 }
4565
4566 opts = qemu_opts_create(&qemu_mon_opts, label, 1);
4567 if (!opts) {
4568 fprintf(stderr, "duplicate chardev: %s\n", label);
4569 exit(1);
4570 }
4571 qemu_opt_set(opts, "mode", mode);
4572 qemu_opt_set(opts, "chardev", label);
4573 if (def)
4574 qemu_opt_set(opts, "default", "on");
4575 monitor_device_index++;
4576 }
4577
4578 struct device_config {
4579 enum {
4580 DEV_USB, /* -usbdevice */
4581 DEV_BT, /* -bt */
4582 DEV_SERIAL, /* -serial */
4583 DEV_PARALLEL, /* -parallel */
4584 DEV_VIRTCON, /* -virtioconsole */
4585 DEV_DEBUGCON, /* -debugcon */
4586 } type;
4587 const char *cmdline;
4588 QTAILQ_ENTRY(device_config) next;
4589 };
4590 QTAILQ_HEAD(, device_config) device_configs = QTAILQ_HEAD_INITIALIZER(device_configs);
4591
4592 static void add_device_config(int type, const char *cmdline)
4593 {
4594 struct device_config *conf;
4595
4596 conf = qemu_mallocz(sizeof(*conf));
4597 conf->type = type;
4598 conf->cmdline = cmdline;
4599 QTAILQ_INSERT_TAIL(&device_configs, conf, next);
4600 }
4601
4602 static int foreach_device_config(int type, int (*func)(const char *cmdline))
4603 {
4604 struct device_config *conf;
4605 int rc;
4606
4607 QTAILQ_FOREACH(conf, &device_configs, next) {
4608 if (conf->type != type)
4609 continue;
4610 rc = func(conf->cmdline);
4611 if (0 != rc)
4612 return rc;
4613 }
4614 return 0;
4615 }
4616
4617 static int serial_parse(const char *devname)
4618 {
4619 static int index = 0;
4620 char label[32];
4621
4622 if (strcmp(devname, "none") == 0)
4623 return 0;
4624 if (index == MAX_SERIAL_PORTS) {
4625 fprintf(stderr, "qemu: too many serial ports\n");
4626 exit(1);
4627 }
4628 snprintf(label, sizeof(label), "serial%d", index);
4629 serial_hds[index] = qemu_chr_open(label, devname, NULL);
4630 if (!serial_hds[index]) {
4631 fprintf(stderr, "qemu: could not open serial device '%s': %s\n",
4632 devname, strerror(errno));
4633 return -1;
4634 }
4635 index++;
4636 return 0;
4637 }
4638
4639 static int parallel_parse(const char *devname)
4640 {
4641 static int index = 0;
4642 char label[32];
4643
4644 if (strcmp(devname, "none") == 0)
4645 return 0;
4646 if (index == MAX_PARALLEL_PORTS) {
4647 fprintf(stderr, "qemu: too many parallel ports\n");
4648 exit(1);
4649 }
4650 snprintf(label, sizeof(label), "parallel%d", index);
4651 parallel_hds[index] = qemu_chr_open(label, devname, NULL);
4652 if (!parallel_hds[index]) {
4653 fprintf(stderr, "qemu: could not open parallel device '%s': %s\n",
4654 devname, strerror(errno));
4655 return -1;
4656 }
4657 index++;
4658 return 0;
4659 }
4660
4661 static int virtcon_parse(const char *devname)
4662 {
4663 static int index = 0;
4664 char label[32];
4665 QemuOpts *bus_opts, *dev_opts;
4666
4667 if (strcmp(devname, "none") == 0)
4668 return 0;
4669 if (index == MAX_VIRTIO_CONSOLES) {
4670 fprintf(stderr, "qemu: too many virtio consoles\n");
4671 exit(1);
4672 }
4673
4674 bus_opts = qemu_opts_create(&qemu_device_opts, NULL, 0);
4675 qemu_opt_set(bus_opts, "driver", "virtio-serial");
4676
4677 dev_opts = qemu_opts_create(&qemu_device_opts, NULL, 0);
4678 qemu_opt_set(dev_opts, "driver", "virtconsole");
4679
4680 snprintf(label, sizeof(label), "virtcon%d", index);
4681 virtcon_hds[index] = qemu_chr_open(label, devname, NULL);
4682 if (!virtcon_hds[index]) {
4683 fprintf(stderr, "qemu: could not open virtio console '%s': %s\n",
4684 devname, strerror(errno));
4685 return -1;
4686 }
4687 qemu_opt_set(dev_opts, "chardev", label);
4688
4689 index++;
4690 return 0;
4691 }
4692
4693 static int debugcon_parse(const char *devname)
4694 {
4695 QemuOpts *opts;
4696
4697 if (!qemu_chr_open("debugcon", devname, NULL)) {
4698 exit(1);
4699 }
4700 opts = qemu_opts_create(&qemu_device_opts, "debugcon", 1);
4701 if (!opts) {
4702 fprintf(stderr, "qemu: already have a debugcon device\n");
4703 exit(1);
4704 }
4705 qemu_opt_set(opts, "driver", "isa-debugcon");
4706 qemu_opt_set(opts, "chardev", "debugcon");
4707 return 0;
4708 }
4709
4710 static const QEMUOption *lookup_opt(int argc, char **argv,
4711 const char **poptarg, int *poptind)
4712 {
4713 const QEMUOption *popt;
4714 int optind = *poptind;
4715 char *r = argv[optind];
4716 const char *optarg;
4717
4718 optind++;
4719 /* Treat --foo the same as -foo. */
4720 if (r[1] == '-')
4721 r++;
4722 popt = qemu_options;
4723 for(;;) {
4724 if (!popt->name) {
4725 fprintf(stderr, "%s: invalid option -- '%s'\n",
4726 argv[0], r);
4727 exit(1);
4728 }
4729 if (!strcmp(popt->name, r + 1))
4730 break;
4731 popt++;
4732 }
4733 if (popt->flags & HAS_ARG) {
4734 if (optind >= argc) {
4735 fprintf(stderr, "%s: option '%s' requires an argument\n",
4736 argv[0], r);
4737 exit(1);
4738 }
4739 optarg = argv[optind++];
4740 } else {
4741 optarg = NULL;
4742 }
4743
4744 *poptarg = optarg;
4745 *poptind = optind;
4746
4747 return popt;
4748 }
4749
4750 int main(int argc, char **argv, char **envp)
4751 {
4752 const char *gdbstub_dev = NULL;
4753 uint32_t boot_devices_bitmap = 0;
4754 int i;
4755 int snapshot, linux_boot, net_boot;
4756 const char *initrd_filename;
4757 const char *kernel_filename, *kernel_cmdline;
4758 char boot_devices[33] = "cad"; /* default to HD->floppy->CD-ROM */
4759 DisplayState *ds;
4760 DisplayChangeListener *dcl;
4761 int cyls, heads, secs, translation;
4762 QemuOpts *hda_opts = NULL, *opts;
4763 int optind;
4764 const char *optarg;
4765 const char *loadvm = NULL;
4766 QEMUMachine *machine;
4767 const char *cpu_model;
4768 #ifndef _WIN32
4769 int fds[2];
4770 #endif
4771 int tb_size;
4772 const char *pid_file = NULL;
4773 const char *incoming = NULL;
4774 #ifndef _WIN32
4775 int fd = 0;
4776 struct passwd *pwd = NULL;
4777 const char *chroot_dir = NULL;
4778 const char *run_as = NULL;
4779 #endif
4780 CPUState *env;
4781 int show_vnc_port = 0;
4782 int defconfig = 1;
4783
4784 init_clocks();
4785
4786 qemu_errors_to_file(stderr);
4787 qemu_cache_utils_init(envp);
4788
4789 QLIST_INIT (&vm_change_state_head);
4790 #ifndef _WIN32
4791 {
4792 struct sigaction act;
4793 sigfillset(&act.sa_mask);
4794 act.sa_flags = 0;
4795 act.sa_handler = SIG_IGN;
4796 sigaction(SIGPIPE, &act, NULL);
4797 }
4798 #else
4799 SetConsoleCtrlHandler(qemu_ctrl_handler, TRUE);
4800 /* Note: cpu_interrupt() is currently not SMP safe, so we force
4801 QEMU to run on a single CPU */
4802 {
4803 HANDLE h;
4804 DWORD mask, smask;
4805 int i;
4806 h = GetCurrentProcess();
4807 if (GetProcessAffinityMask(h, &mask, &smask)) {
4808 for(i = 0; i < 32; i++) {
4809 if (mask & (1 << i))
4810 break;
4811 }
4812 if (i != 32) {
4813 mask = 1 << i;
4814 SetProcessAffinityMask(h, mask);
4815 }
4816 }
4817 }
4818 #endif
4819
4820 module_call_init(MODULE_INIT_MACHINE);
4821 machine = find_default_machine();
4822 cpu_model = NULL;
4823 initrd_filename = NULL;
4824 ram_size = 0;
4825 snapshot = 0;
4826 kernel_filename = NULL;
4827 kernel_cmdline = "";
4828 cyls = heads = secs = 0;
4829 translation = BIOS_ATA_TRANSLATION_AUTO;
4830
4831 for (i = 0; i < MAX_NODES; i++) {
4832 node_mem[i] = 0;
4833 node_cpumask[i] = 0;
4834 }
4835
4836 nb_numa_nodes = 0;
4837 nb_nics = 0;
4838
4839 tb_size = 0;
4840 autostart= 1;
4841
4842 /* first pass of option parsing */
4843 optind = 1;
4844 while (optind < argc) {
4845 if (argv[optind][0] != '-') {
4846 /* disk image */
4847 optind++;
4848 continue;
4849 } else {
4850 const QEMUOption *popt;
4851
4852 popt = lookup_opt(argc, argv, &optarg, &optind);
4853 switch (popt->index) {
4854 case QEMU_OPTION_nodefconfig:
4855 defconfig=0;
4856 break;
4857 }
4858 }
4859 }
4860
4861 if (defconfig) {
4862 FILE *fp;
4863 fp = fopen(CONFIG_QEMU_CONFDIR "/qemu.conf", "r");
4864 if (fp) {
4865 if (qemu_config_parse(fp) != 0) {
4866 exit(1);
4867 }
4868 fclose(fp);
4869 }
4870
4871 fp = fopen(CONFIG_QEMU_CONFDIR "/target-" TARGET_ARCH ".conf", "r");
4872 if (fp) {
4873 if (qemu_config_parse(fp) != 0) {
4874 exit(1);
4875 }
4876 fclose(fp);
4877 }
4878 }
4879
4880 /* second pass of option parsing */
4881 optind = 1;
4882 for(;;) {
4883 if (optind >= argc)
4884 break;
4885 if (argv[optind][0] != '-') {
4886 hda_opts = drive_add(argv[optind++], HD_ALIAS, 0);
4887 } else {
4888 const QEMUOption *popt;
4889
4890 popt = lookup_opt(argc, argv, &optarg, &optind);
4891 switch(popt->index) {
4892 case QEMU_OPTION_M:
4893 machine = find_machine(optarg);
4894 if (!machine) {
4895 QEMUMachine *m;
4896 printf("Supported machines are:\n");
4897 for(m = first_machine; m != NULL; m = m->next) {
4898 if (m->alias)
4899 printf("%-10s %s (alias of %s)\n",
4900 m->alias, m->desc, m->name);
4901 printf("%-10s %s%s\n",
4902 m->name, m->desc,
4903 m->is_default ? " (default)" : "");
4904 }
4905 exit(*optarg != '?');
4906 }
4907 break;
4908 case QEMU_OPTION_cpu:
4909 /* hw initialization will check this */
4910 if (*optarg == '?') {
4911 /* XXX: implement xxx_cpu_list for targets that still miss it */
4912 #if defined(cpu_list)
4913 cpu_list(stdout, &fprintf);
4914 #endif
4915 exit(0);
4916 } else {
4917 cpu_model = optarg;
4918 }
4919 break;
4920 case QEMU_OPTION_initrd:
4921 initrd_filename = optarg;
4922 break;
4923 case QEMU_OPTION_hda:
4924 if (cyls == 0)
4925 hda_opts = drive_add(optarg, HD_ALIAS, 0);
4926 else
4927 hda_opts = drive_add(optarg, HD_ALIAS
4928 ",cyls=%d,heads=%d,secs=%d%s",
4929 0, cyls, heads, secs,
4930 translation == BIOS_ATA_TRANSLATION_LBA ?
4931 ",trans=lba" :
4932 translation == BIOS_ATA_TRANSLATION_NONE ?
4933 ",trans=none" : "");
4934 break;
4935 case QEMU_OPTION_hdb:
4936 case QEMU_OPTION_hdc:
4937 case QEMU_OPTION_hdd:
4938 drive_add(optarg, HD_ALIAS, popt->index - QEMU_OPTION_hda);
4939 break;
4940 case QEMU_OPTION_drive:
4941 drive_add(NULL, "%s", optarg);
4942 break;
4943 case QEMU_OPTION_set:
4944 if (qemu_set_option(optarg) != 0)
4945 exit(1);
4946 break;
4947 case QEMU_OPTION_global:
4948 if (qemu_global_option(optarg) != 0)
4949 exit(1);
4950 break;
4951 case QEMU_OPTION_mtdblock:
4952 drive_add(optarg, MTD_ALIAS);
4953 break;
4954 case QEMU_OPTION_sd:
4955 drive_add(optarg, SD_ALIAS);
4956 break;
4957 case QEMU_OPTION_pflash:
4958 drive_add(optarg, PFLASH_ALIAS);
4959 break;
4960 case QEMU_OPTION_snapshot:
4961 snapshot = 1;
4962 break;
4963 case QEMU_OPTION_hdachs:
4964 {
4965 const char *p;
4966 p = optarg;
4967 cyls = strtol(p, (char **)&p, 0);
4968 if (cyls < 1 || cyls > 16383)
4969 goto chs_fail;
4970 if (*p != ',')
4971 goto chs_fail;
4972 p++;
4973 heads = strtol(p, (char **)&p, 0);
4974 if (heads < 1 || heads > 16)
4975 goto chs_fail;
4976 if (*p != ',')
4977 goto chs_fail;
4978 p++;
4979 secs = strtol(p, (char **)&p, 0);
4980 if (secs < 1 || secs > 63)
4981 goto chs_fail;
4982 if (*p == ',') {
4983 p++;
4984 if (!strcmp(p, "none"))
4985 translation = BIOS_ATA_TRANSLATION_NONE;
4986 else if (!strcmp(p, "lba"))
4987 translation = BIOS_ATA_TRANSLATION_LBA;
4988 else if (!strcmp(p, "auto"))
4989 translation = BIOS_ATA_TRANSLATION_AUTO;
4990 else
4991 goto chs_fail;
4992 } else if (*p != '\0') {
4993 chs_fail:
4994 fprintf(stderr, "qemu: invalid physical CHS format\n");
4995 exit(1);
4996 }
4997 if (hda_opts != NULL) {
4998 char num[16];
4999 snprintf(num, sizeof(num), "%d", cyls);
5000 qemu_opt_set(hda_opts, "cyls", num);
5001 snprintf(num, sizeof(num), "%d", heads);
5002 qemu_opt_set(hda_opts, "heads", num);
5003 snprintf(num, sizeof(num), "%d", secs);
5004 qemu_opt_set(hda_opts, "secs", num);
5005 if (translation == BIOS_ATA_TRANSLATION_LBA)
5006 qemu_opt_set(hda_opts, "trans", "lba");
5007 if (translation == BIOS_ATA_TRANSLATION_NONE)
5008 qemu_opt_set(hda_opts, "trans", "none");
5009 }
5010 }
5011 break;
5012 case QEMU_OPTION_numa:
5013 if (nb_numa_nodes >= MAX_NODES) {
5014 fprintf(stderr, "qemu: too many NUMA nodes\n");
5015 exit(1);
5016 }
5017 numa_add(optarg);
5018 break;
5019 case QEMU_OPTION_nographic:
5020 display_type = DT_NOGRAPHIC;
5021 break;
5022 #ifdef CONFIG_CURSES
5023 case QEMU_OPTION_curses:
5024 display_type = DT_CURSES;
5025 break;
5026 #endif
5027 case QEMU_OPTION_portrait:
5028 graphic_rotate = 1;
5029 break;
5030 case QEMU_OPTION_kernel:
5031 kernel_filename = optarg;
5032 break;
5033 case QEMU_OPTION_append:
5034 kernel_cmdline = optarg;
5035 break;
5036 case QEMU_OPTION_cdrom:
5037 drive_add(optarg, CDROM_ALIAS);
5038 break;
5039 case QEMU_OPTION_boot:
5040 {
5041 static const char * const params[] = {
5042 "order", "once", "menu", NULL
5043 };
5044 char buf[sizeof(boot_devices)];
5045 char *standard_boot_devices;
5046 int legacy = 0;
5047
5048 if (!strchr(optarg, '=')) {
5049 legacy = 1;
5050 pstrcpy(buf, sizeof(buf), optarg);
5051 } else if (check_params(buf, sizeof(buf), params, optarg) < 0) {
5052 fprintf(stderr,
5053 "qemu: unknown boot parameter '%s' in '%s'\n",
5054 buf, optarg);
5055 exit(1);
5056 }
5057
5058 if (legacy ||
5059 get_param_value(buf, sizeof(buf), "order", optarg)) {
5060 boot_devices_bitmap = parse_bootdevices(buf);
5061 pstrcpy(boot_devices, sizeof(boot_devices), buf);
5062 }
5063 if (!legacy) {
5064 if (get_param_value(buf, sizeof(buf),
5065 "once", optarg)) {
5066 boot_devices_bitmap |= parse_bootdevices(buf);
5067 standard_boot_devices = qemu_strdup(boot_devices);
5068 pstrcpy(boot_devices, sizeof(boot_devices), buf);
5069 qemu_register_reset(restore_boot_devices,
5070 standard_boot_devices);
5071 }
5072 if (get_param_value(buf, sizeof(buf),
5073 "menu", optarg)) {
5074 if (!strcmp(buf, "on")) {
5075 boot_menu = 1;
5076 } else if (!strcmp(buf, "off")) {
5077 boot_menu = 0;
5078 } else {
5079 fprintf(stderr,
5080 "qemu: invalid option value '%s'\n",
5081 buf);
5082 exit(1);
5083 }
5084 }
5085 }
5086 }
5087 break;
5088 case QEMU_OPTION_fda:
5089 case QEMU_OPTION_fdb:
5090 drive_add(optarg, FD_ALIAS, popt->index - QEMU_OPTION_fda);
5091 break;
5092 #ifdef TARGET_I386
5093 case QEMU_OPTION_no_fd_bootchk:
5094 fd_bootchk = 0;
5095 break;
5096 #endif
5097 case QEMU_OPTION_netdev:
5098 if (net_client_parse(&qemu_netdev_opts, optarg) == -1) {
5099 exit(1);
5100 }
5101 break;
5102 case QEMU_OPTION_net:
5103 if (net_client_parse(&qemu_net_opts, optarg) == -1) {
5104 exit(1);
5105 }
5106 break;
5107 #ifdef CONFIG_SLIRP
5108 case QEMU_OPTION_tftp:
5109 legacy_tftp_prefix = optarg;
5110 break;
5111 case QEMU_OPTION_bootp:
5112 legacy_bootp_filename = optarg;
5113 break;
5114 #ifndef _WIN32
5115 case QEMU_OPTION_smb:
5116 if (net_slirp_smb(optarg) < 0)
5117 exit(1);
5118 break;
5119 #endif
5120 case QEMU_OPTION_redir:
5121 if (net_slirp_redir(optarg) < 0)
5122 exit(1);
5123 break;
5124 #endif
5125 case QEMU_OPTION_bt:
5126 add_device_config(DEV_BT, optarg);
5127 break;
5128 #ifdef HAS_AUDIO
5129 case QEMU_OPTION_audio_help:
5130 AUD_help ();
5131 exit (0);
5132 break;
5133 case QEMU_OPTION_soundhw:
5134 select_soundhw (optarg);
5135 break;
5136 #endif
5137 case QEMU_OPTION_h:
5138 help(0);
5139 break;
5140 case QEMU_OPTION_version:
5141 version();
5142 exit(0);
5143 break;
5144 case QEMU_OPTION_m: {
5145 uint64_t value;
5146 char *ptr;
5147
5148 value = strtoul(optarg, &ptr, 10);
5149 switch (*ptr) {
5150 case 0: case 'M': case 'm':
5151 value <<= 20;
5152 break;
5153 case 'G': case 'g':
5154 value <<= 30;
5155 break;
5156 default:
5157 fprintf(stderr, "qemu: invalid ram size: %s\n", optarg);
5158 exit(1);
5159 }
5160
5161 /* On 32-bit hosts, QEMU is limited by virtual address space */
5162 if (value > (2047 << 20) && HOST_LONG_BITS == 32) {
5163 fprintf(stderr, "qemu: at most 2047 MB RAM can be simulated\n");
5164 exit(1);
5165 }
5166 if (value != (uint64_t)(ram_addr_t)value) {
5167 fprintf(stderr, "qemu: ram size too large\n");
5168 exit(1);
5169 }
5170 ram_size = value;
5171 break;
5172 }
5173 case QEMU_OPTION_d:
5174 {
5175 int mask;
5176 const CPULogItem *item;
5177
5178 mask = cpu_str_to_log_mask(optarg);
5179 if (!mask) {
5180 printf("Log items (comma separated):\n");
5181 for(item = cpu_log_items; item->mask != 0; item++) {
5182 printf("%-10s %s\n", item->name, item->help);
5183 }
5184 exit(1);
5185 }
5186 cpu_set_log(mask);
5187 }
5188 break;
5189 case QEMU_OPTION_s:
5190 gdbstub_dev = "tcp::" DEFAULT_GDBSTUB_PORT;
5191 break;
5192 case QEMU_OPTION_gdb:
5193 gdbstub_dev = optarg;
5194 break;
5195 case QEMU_OPTION_L:
5196 data_dir = optarg;
5197 break;
5198 case QEMU_OPTION_bios:
5199 bios_name = optarg;
5200 break;
5201 case QEMU_OPTION_singlestep:
5202 singlestep = 1;
5203 break;
5204 case QEMU_OPTION_S:
5205 autostart = 0;
5206 break;
5207 case QEMU_OPTION_k:
5208 keyboard_layout = optarg;
5209 break;
5210 case QEMU_OPTION_localtime:
5211 rtc_utc = 0;
5212 break;
5213 case QEMU_OPTION_vga:
5214 select_vgahw (optarg);
5215 break;
5216 #if defined(TARGET_PPC) || defined(TARGET_SPARC)
5217 case QEMU_OPTION_g:
5218 {
5219 const char *p;
5220 int w, h, depth;
5221 p = optarg;
5222 w = strtol(p, (char **)&p, 10);
5223 if (w <= 0) {
5224 graphic_error:
5225 fprintf(stderr, "qemu: invalid resolution or depth\n");
5226 exit(1);
5227 }
5228 if (*p != 'x')
5229 goto graphic_error;
5230 p++;
5231 h = strtol(p, (char **)&p, 10);
5232 if (h <= 0)
5233 goto graphic_error;
5234 if (*p == 'x') {
5235 p++;
5236 depth = strtol(p, (char **)&p, 10);
5237 if (depth != 8 && depth != 15 && depth != 16 &&
5238 depth != 24 && depth != 32)
5239 goto graphic_error;
5240 } else if (*p == '\0') {
5241 depth = graphic_depth;
5242 } else {
5243 goto graphic_error;
5244 }
5245
5246 graphic_width = w;
5247 graphic_height = h;
5248 graphic_depth = depth;
5249 }
5250 break;
5251 #endif
5252 case QEMU_OPTION_echr:
5253 {
5254 char *r;
5255 term_escape_char = strtol(optarg, &r, 0);
5256 if (r == optarg)
5257 printf("Bad argument to echr\n");
5258 break;
5259 }
5260 case QEMU_OPTION_monitor:
5261 monitor_parse(optarg, "readline");
5262 default_monitor = 0;
5263 break;
5264 case QEMU_OPTION_qmp:
5265 monitor_parse(optarg, "control");
5266 default_monitor = 0;
5267 break;
5268 case QEMU_OPTION_mon:
5269 opts = qemu_opts_parse(&qemu_mon_opts, optarg, "chardev");
5270 if (!opts) {
5271 fprintf(stderr, "parse error: %s\n", optarg);
5272 exit(1);
5273 }
5274 default_monitor = 0;
5275 break;
5276 case QEMU_OPTION_chardev:
5277 opts = qemu_opts_parse(&qemu_chardev_opts, optarg, "backend");
5278 if (!opts) {
5279 fprintf(stderr, "parse error: %s\n", optarg);
5280 exit(1);
5281 }
5282 break;
5283 case QEMU_OPTION_serial:
5284 add_device_config(DEV_SERIAL, optarg);
5285 default_serial = 0;
5286 break;
5287 case QEMU_OPTION_watchdog:
5288 if (watchdog) {
5289 fprintf(stderr,
5290 "qemu: only one watchdog option may be given\n");
5291 return 1;
5292 }
5293 watchdog = optarg;
5294 break;
5295 case QEMU_OPTION_watchdog_action:
5296 if (select_watchdog_action(optarg) == -1) {
5297 fprintf(stderr, "Unknown -watchdog-action parameter\n");
5298 exit(1);
5299 }
5300 break;
5301 case QEMU_OPTION_virtiocon:
5302 add_device_config(DEV_VIRTCON, optarg);
5303 default_virtcon = 0;
5304 break;
5305 case QEMU_OPTION_parallel:
5306 add_device_config(DEV_PARALLEL, optarg);
5307 default_parallel = 0;
5308 break;
5309 case QEMU_OPTION_debugcon:
5310 add_device_config(DEV_DEBUGCON, optarg);
5311 break;
5312 case QEMU_OPTION_loadvm:
5313 loadvm = optarg;
5314 break;
5315 case QEMU_OPTION_full_screen:
5316 full_screen = 1;
5317 break;
5318 #ifdef CONFIG_SDL
5319 case QEMU_OPTION_no_frame:
5320 no_frame = 1;
5321 break;
5322 case QEMU_OPTION_alt_grab:
5323 alt_grab = 1;
5324 break;
5325 case QEMU_OPTION_ctrl_grab:
5326 ctrl_grab = 1;
5327 break;
5328 case QEMU_OPTION_no_quit:
5329 no_quit = 1;
5330 break;
5331 case QEMU_OPTION_sdl:
5332 display_type = DT_SDL;
5333 break;
5334 #endif
5335 case QEMU_OPTION_pidfile:
5336 pid_file = optarg;
5337 break;
5338 #ifdef TARGET_I386
5339 case QEMU_OPTION_win2k_hack:
5340 win2k_install_hack = 1;
5341 break;
5342 case QEMU_OPTION_rtc_td_hack:
5343 rtc_td_hack = 1;
5344 break;
5345 case QEMU_OPTION_acpitable:
5346 if(acpi_table_add(optarg) < 0) {
5347 fprintf(stderr, "Wrong acpi table provided\n");
5348 exit(1);
5349 }
5350 break;
5351 case QEMU_OPTION_smbios:
5352 if(smbios_entry_add(optarg) < 0) {
5353 fprintf(stderr, "Wrong smbios provided\n");
5354 exit(1);
5355 }
5356 break;
5357 #endif
5358 #ifdef CONFIG_KVM
5359 case QEMU_OPTION_enable_kvm:
5360 kvm_allowed = 1;
5361 break;
5362 #endif
5363 case QEMU_OPTION_usb:
5364 usb_enabled = 1;
5365 break;
5366 case QEMU_OPTION_usbdevice:
5367 usb_enabled = 1;
5368 add_device_config(DEV_USB, optarg);
5369 break;
5370 case QEMU_OPTION_device:
5371 if (!qemu_opts_parse(&qemu_device_opts, optarg, "driver")) {
5372 exit(1);
5373 }
5374 break;
5375 case QEMU_OPTION_smp:
5376 smp_parse(optarg);
5377 if (smp_cpus < 1) {
5378 fprintf(stderr, "Invalid number of CPUs\n");
5379 exit(1);
5380 }
5381 if (max_cpus < smp_cpus) {
5382 fprintf(stderr, "maxcpus must be equal to or greater than "
5383 "smp\n");
5384 exit(1);
5385 }
5386 if (max_cpus > 255) {
5387 fprintf(stderr, "Unsupported number of maxcpus\n");
5388 exit(1);
5389 }
5390 break;
5391 case QEMU_OPTION_vnc:
5392 display_type = DT_VNC;
5393 vnc_display = optarg;
5394 break;
5395 #ifdef TARGET_I386
5396 case QEMU_OPTION_no_acpi:
5397 acpi_enabled = 0;
5398 break;
5399 case QEMU_OPTION_no_hpet:
5400 no_hpet = 1;
5401 break;
5402 case QEMU_OPTION_balloon:
5403 if (balloon_parse(optarg) < 0) {
5404 fprintf(stderr, "Unknown -balloon argument %s\n", optarg);
5405 exit(1);
5406 }
5407 break;
5408 #endif
5409 case QEMU_OPTION_no_reboot:
5410 no_reboot = 1;
5411 break;
5412 case QEMU_OPTION_no_shutdown:
5413 no_shutdown = 1;
5414 break;
5415 case QEMU_OPTION_show_cursor:
5416 cursor_hide = 0;
5417 break;
5418 case QEMU_OPTION_uuid:
5419 if(qemu_uuid_parse(optarg, qemu_uuid) < 0) {
5420 fprintf(stderr, "Fail to parse UUID string."
5421 " Wrong format.\n");
5422 exit(1);
5423 }
5424 break;
5425 #ifndef _WIN32
5426 case QEMU_OPTION_daemonize:
5427 daemonize = 1;
5428 break;
5429 #endif
5430 case QEMU_OPTION_option_rom:
5431 if (nb_option_roms >= MAX_OPTION_ROMS) {
5432 fprintf(stderr, "Too many option ROMs\n");
5433 exit(1);
5434 }
5435 option_rom[nb_option_roms] = optarg;
5436 nb_option_roms++;
5437 break;
5438 #if defined(TARGET_ARM) || defined(TARGET_M68K)
5439 case QEMU_OPTION_semihosting:
5440 semihosting_enabled = 1;
5441 break;
5442 #endif
5443 case QEMU_OPTION_name:
5444 qemu_name = qemu_strdup(optarg);
5445 {
5446 char *p = strchr(qemu_name, ',');
5447 if (p != NULL) {
5448 *p++ = 0;
5449 if (strncmp(p, "process=", 8)) {
5450 fprintf(stderr, "Unknown subargument %s to -name", p);
5451 exit(1);
5452 }
5453 p += 8;
5454 set_proc_name(p);
5455 }
5456 }
5457 break;
5458 #if defined(TARGET_SPARC) || defined(TARGET_PPC)
5459 case QEMU_OPTION_prom_env:
5460 if (nb_prom_envs >= MAX_PROM_ENVS) {
5461 fprintf(stderr, "Too many prom variables\n");
5462 exit(1);
5463 }
5464 prom_envs[nb_prom_envs] = optarg;
5465 nb_prom_envs++;
5466 break;
5467 #endif
5468 #ifdef TARGET_ARM
5469 case QEMU_OPTION_old_param:
5470 old_param = 1;
5471 break;
5472 #endif
5473 case QEMU_OPTION_clock:
5474 configure_alarms(optarg);
5475 break;
5476 case QEMU_OPTION_startdate:
5477 configure_rtc_date_offset(optarg, 1);
5478 break;
5479 case QEMU_OPTION_rtc:
5480 opts = qemu_opts_parse(&qemu_rtc_opts, optarg, NULL);
5481 if (!opts) {
5482 fprintf(stderr, "parse error: %s\n", optarg);
5483 exit(1);
5484 }
5485 configure_rtc(opts);
5486 break;
5487 case QEMU_OPTION_tb_size:
5488 tb_size = strtol(optarg, NULL, 0);
5489 if (tb_size < 0)
5490 tb_size = 0;
5491 break;
5492 case QEMU_OPTION_icount:
5493 use_icount = 1;
5494 if (strcmp(optarg, "auto") == 0) {
5495 icount_time_shift = -1;
5496 } else {
5497 icount_time_shift = strtol(optarg, NULL, 0);
5498 }
5499 break;
5500 case QEMU_OPTION_incoming:
5501 incoming = optarg;
5502 break;
5503 case QEMU_OPTION_nodefaults:
5504 default_serial = 0;
5505 default_parallel = 0;
5506 default_virtcon = 0;
5507 default_monitor = 0;
5508 default_vga = 0;
5509 default_net = 0;
5510 default_floppy = 0;
5511 default_cdrom = 0;
5512 default_sdcard = 0;
5513 break;
5514 #ifndef _WIN32
5515 case QEMU_OPTION_chroot:
5516 chroot_dir = optarg;
5517 break;
5518 case QEMU_OPTION_runas:
5519 run_as = optarg;
5520 break;
5521 #endif
5522 #ifdef CONFIG_XEN
5523 case QEMU_OPTION_xen_domid:
5524 xen_domid = atoi(optarg);
5525 break;
5526 case QEMU_OPTION_xen_create:
5527 xen_mode = XEN_CREATE;
5528 break;
5529 case QEMU_OPTION_xen_attach:
5530 xen_mode = XEN_ATTACH;
5531 break;
5532 #endif
5533 case QEMU_OPTION_readconfig:
5534 {
5535 FILE *fp;
5536 fp = fopen(optarg, "r");
5537 if (fp == NULL) {
5538 fprintf(stderr, "open %s: %s\n", optarg, strerror(errno));
5539 exit(1);
5540 }
5541 if (qemu_config_parse(fp) != 0) {
5542 exit(1);
5543 }
5544 fclose(fp);
5545 break;
5546 }
5547 case QEMU_OPTION_writeconfig:
5548 {
5549 FILE *fp;
5550 if (strcmp(optarg, "-") == 0) {
5551 fp = stdout;
5552 } else {
5553 fp = fopen(optarg, "w");
5554 if (fp == NULL) {
5555 fprintf(stderr, "open %s: %s\n", optarg, strerror(errno));
5556 exit(1);
5557 }
5558 }
5559 qemu_config_write(fp);
5560 fclose(fp);
5561 break;
5562 }
5563 }
5564 }
5565 }
5566
5567 /* If no data_dir is specified then try to find it relative to the
5568 executable path. */
5569 if (!data_dir) {
5570 data_dir = find_datadir(argv[0]);
5571 }
5572 /* If all else fails use the install patch specified when building. */
5573 if (!data_dir) {
5574 data_dir = CONFIG_QEMU_SHAREDIR;
5575 }
5576
5577 /*
5578 * Default to max_cpus = smp_cpus, in case the user doesn't
5579 * specify a max_cpus value.
5580 */
5581 if (!max_cpus)
5582 max_cpus = smp_cpus;
5583
5584 machine->max_cpus = machine->max_cpus ?: 1; /* Default to UP */
5585 if (smp_cpus > machine->max_cpus) {
5586 fprintf(stderr, "Number of SMP cpus requested (%d), exceeds max cpus "
5587 "supported by machine `%s' (%d)\n", smp_cpus, machine->name,
5588 machine->max_cpus);
5589 exit(1);
5590 }
5591
5592 qemu_opts_foreach(&qemu_device_opts, default_driver_check, NULL, 0);
5593 qemu_opts_foreach(&qemu_global_opts, default_driver_check, NULL, 0);
5594
5595 if (machine->no_serial) {
5596 default_serial = 0;
5597 }
5598 if (machine->no_parallel) {
5599 default_parallel = 0;
5600 }
5601 if (!machine->use_virtcon) {
5602 default_virtcon = 0;
5603 }
5604 if (machine->no_vga) {
5605 default_vga = 0;
5606 }
5607 if (machine->no_floppy) {
5608 default_floppy = 0;
5609 }
5610 if (machine->no_cdrom) {
5611 default_cdrom = 0;
5612 }
5613 if (machine->no_sdcard) {
5614 default_sdcard = 0;
5615 }
5616
5617 if (display_type == DT_NOGRAPHIC) {
5618 if (default_parallel)
5619 add_device_config(DEV_PARALLEL, "null");
5620 if (default_serial && default_monitor) {
5621 add_device_config(DEV_SERIAL, "mon:stdio");
5622 } else if (default_virtcon && default_monitor) {
5623 add_device_config(DEV_VIRTCON, "mon:stdio");
5624 } else {
5625 if (default_serial)
5626 add_device_config(DEV_SERIAL, "stdio");
5627 if (default_virtcon)
5628 add_device_config(DEV_VIRTCON, "stdio");
5629 if (default_monitor)
5630 monitor_parse("stdio", "readline");
5631 }
5632 } else {
5633 if (default_serial)
5634 add_device_config(DEV_SERIAL, "vc:80Cx24C");
5635 if (default_parallel)
5636 add_device_config(DEV_PARALLEL, "vc:80Cx24C");
5637 if (default_monitor)
5638 monitor_parse("vc:80Cx24C", "readline");
5639 if (default_virtcon)
5640 add_device_config(DEV_VIRTCON, "vc:80Cx24C");
5641 }
5642 if (default_vga)
5643 vga_interface_type = VGA_CIRRUS;
5644
5645 if (qemu_opts_foreach(&qemu_chardev_opts, chardev_init_func, NULL, 1) != 0)
5646 exit(1);
5647
5648 #ifndef _WIN32
5649 if (daemonize) {
5650 pid_t pid;
5651
5652 if (pipe(fds) == -1)
5653 exit(1);
5654
5655 pid = fork();
5656 if (pid > 0) {
5657 uint8_t status;
5658 ssize_t len;
5659
5660 close(fds[1]);
5661
5662 again:
5663 len = read(fds[0], &status, 1);
5664 if (len == -1 && (errno == EINTR))
5665 goto again;
5666
5667 if (len != 1)
5668 exit(1);
5669 else if (status == 1) {
5670 fprintf(stderr, "Could not acquire pidfile: %s\n", strerror(errno));
5671 exit(1);
5672 } else
5673 exit(0);
5674 } else if (pid < 0)
5675 exit(1);
5676
5677 close(fds[0]);
5678 qemu_set_cloexec(fds[1]);
5679
5680 setsid();
5681
5682 pid = fork();
5683 if (pid > 0)
5684 exit(0);
5685 else if (pid < 0)
5686 exit(1);
5687
5688 umask(027);
5689
5690 signal(SIGTSTP, SIG_IGN);
5691 signal(SIGTTOU, SIG_IGN);
5692 signal(SIGTTIN, SIG_IGN);
5693 }
5694 #endif
5695
5696 if (pid_file && qemu_create_pidfile(pid_file) != 0) {
5697 #ifndef _WIN32
5698 if (daemonize) {
5699 uint8_t status = 1;
5700 if (write(fds[1], &status, 1) != 1) {
5701 perror("daemonize. Writing to pipe\n");
5702 }
5703 } else
5704 #endif
5705 fprintf(stderr, "Could not acquire pid file: %s\n", strerror(errno));
5706 exit(1);
5707 }
5708
5709 if (kvm_enabled()) {
5710 int ret;
5711
5712 ret = kvm_init(smp_cpus);
5713 if (ret < 0) {
5714 fprintf(stderr, "failed to initialize KVM\n");
5715 exit(1);
5716 }
5717 }
5718
5719 if (qemu_init_main_loop()) {
5720 fprintf(stderr, "qemu_init_main_loop failed\n");
5721 exit(1);
5722 }
5723 linux_boot = (kernel_filename != NULL);
5724
5725 if (!linux_boot && *kernel_cmdline != '\0') {
5726 fprintf(stderr, "-append only allowed with -kernel option\n");
5727 exit(1);
5728 }
5729
5730 if (!linux_boot && initrd_filename != NULL) {
5731 fprintf(stderr, "-initrd only allowed with -kernel option\n");
5732 exit(1);
5733 }
5734
5735 #ifndef _WIN32
5736 /* Win32 doesn't support line-buffering and requires size >= 2 */
5737 setvbuf(stdout, NULL, _IOLBF, 0);
5738 #endif
5739
5740 if (init_timer_alarm() < 0) {
5741 fprintf(stderr, "could not initialize alarm timer\n");
5742 exit(1);
5743 }
5744 if (use_icount && icount_time_shift < 0) {
5745 use_icount = 2;
5746 /* 125MIPS seems a reasonable initial guess at the guest speed.
5747 It will be corrected fairly quickly anyway. */
5748 icount_time_shift = 3;
5749 init_icount_adjust();
5750 }
5751
5752 #ifdef _WIN32
5753 socket_init();
5754 #endif
5755
5756 if (net_init_clients() < 0) {
5757 exit(1);
5758 }
5759
5760 net_boot = (boot_devices_bitmap >> ('n' - 'a')) & 0xF;
5761 net_set_boot_mask(net_boot);
5762
5763 /* init the bluetooth world */
5764 if (foreach_device_config(DEV_BT, bt_parse))
5765 exit(1);
5766
5767 /* init the memory */
5768 if (ram_size == 0)
5769 ram_size = DEFAULT_RAM_SIZE * 1024 * 1024;
5770
5771 /* init the dynamic translator */
5772 cpu_exec_init_all(tb_size * 1024 * 1024);
5773
5774 bdrv_init_with_whitelist();
5775
5776 blk_mig_init();
5777
5778 if (default_cdrom) {
5779 /* we always create the cdrom drive, even if no disk is there */
5780 drive_add(NULL, CDROM_ALIAS);
5781 }
5782
5783 if (default_floppy) {
5784 /* we always create at least one floppy */
5785 drive_add(NULL, FD_ALIAS, 0);
5786 }
5787
5788 if (default_sdcard) {
5789 /* we always create one sd slot, even if no card is in it */
5790 drive_add(NULL, SD_ALIAS);
5791 }
5792
5793 /* open the virtual block devices */
5794 if (snapshot)
5795 qemu_opts_foreach(&qemu_drive_opts, drive_enable_snapshot, NULL, 0);
5796 if (qemu_opts_foreach(&qemu_drive_opts, drive_init_func, machine, 1) != 0)
5797 exit(1);
5798
5799 vmstate_register(0, &vmstate_timers ,&timers_state);
5800 register_savevm_live("ram", 0, 3, NULL, ram_save_live, NULL,
5801 ram_load, NULL);
5802
5803 if (nb_numa_nodes > 0) {
5804 int i;
5805
5806 if (nb_numa_nodes > smp_cpus) {
5807 nb_numa_nodes = smp_cpus;
5808 }
5809
5810 /* If no memory size if given for any node, assume the default case
5811 * and distribute the available memory equally across all nodes
5812 */
5813 for (i = 0; i < nb_numa_nodes; i++) {
5814 if (node_mem[i] != 0)
5815 break;
5816 }
5817 if (i == nb_numa_nodes) {
5818 uint64_t usedmem = 0;
5819
5820 /* On Linux, the each node's border has to be 8MB aligned,
5821 * the final node gets the rest.
5822 */
5823 for (i = 0; i < nb_numa_nodes - 1; i++) {
5824 node_mem[i] = (ram_size / nb_numa_nodes) & ~((1 << 23UL) - 1);
5825 usedmem += node_mem[i];
5826 }
5827 node_mem[i] = ram_size - usedmem;
5828 }
5829
5830 for (i = 0; i < nb_numa_nodes; i++) {
5831 if (node_cpumask[i] != 0)
5832 break;
5833 }
5834 /* assigning the VCPUs round-robin is easier to implement, guest OSes
5835 * must cope with this anyway, because there are BIOSes out there in
5836 * real machines which also use this scheme.
5837 */
5838 if (i == nb_numa_nodes) {
5839 for (i = 0; i < smp_cpus; i++) {
5840 node_cpumask[i % nb_numa_nodes] |= 1 << i;
5841 }
5842 }
5843 }
5844
5845 if (foreach_device_config(DEV_SERIAL, serial_parse) < 0)
5846 exit(1);
5847 if (foreach_device_config(DEV_PARALLEL, parallel_parse) < 0)
5848 exit(1);
5849 if (foreach_device_config(DEV_VIRTCON, virtcon_parse) < 0)
5850 exit(1);
5851 if (foreach_device_config(DEV_DEBUGCON, debugcon_parse) < 0)
5852 exit(1);
5853
5854 module_call_init(MODULE_INIT_DEVICE);
5855
5856 if (qemu_opts_foreach(&qemu_device_opts, device_help_func, NULL, 0) != 0)
5857 exit(0);
5858
5859 if (watchdog) {
5860 i = select_watchdog(watchdog);
5861 if (i > 0)
5862 exit (i == 1 ? 1 : 0);
5863 }
5864
5865 if (machine->compat_props) {
5866 qdev_prop_register_global_list(machine->compat_props);
5867 }
5868 qemu_add_globals();
5869
5870 machine->init(ram_size, boot_devices,
5871 kernel_filename, kernel_cmdline, initrd_filename, cpu_model);
5872
5873
5874 #ifndef _WIN32
5875 /* must be after terminal init, SDL library changes signal handlers */
5876 sighandler_setup();
5877 #endif
5878
5879 for (env = first_cpu; env != NULL; env = env->next_cpu) {
5880 for (i = 0; i < nb_numa_nodes; i++) {
5881 if (node_cpumask[i] & (1 << env->cpu_index)) {
5882 env->numa_node = i;
5883 }
5884 }
5885 }
5886
5887 current_machine = machine;
5888
5889 /* init USB devices */
5890 if (usb_enabled) {
5891 if (foreach_device_config(DEV_USB, usb_parse) < 0)
5892 exit(1);
5893 }
5894
5895 /* init generic devices */
5896 if (qemu_opts_foreach(&qemu_device_opts, device_init_func, NULL, 1) != 0)
5897 exit(1);
5898
5899 if (!display_state)
5900 dumb_display_init();
5901 /* just use the first displaystate for the moment */
5902 ds = display_state;
5903
5904 if (display_type == DT_DEFAULT) {
5905 #if defined(CONFIG_SDL) || defined(CONFIG_COCOA)
5906 display_type = DT_SDL;
5907 #else
5908 display_type = DT_VNC;
5909 vnc_display = "localhost:0,to=99";
5910 show_vnc_port = 1;
5911 #endif
5912 }
5913
5914
5915 switch (display_type) {
5916 case DT_NOGRAPHIC:
5917 break;
5918 #if defined(CONFIG_CURSES)
5919 case DT_CURSES:
5920 curses_display_init(ds, full_screen);
5921 break;
5922 #endif
5923 #if defined(CONFIG_SDL)
5924 case DT_SDL:
5925 sdl_display_init(ds, full_screen, no_frame);
5926 break;
5927 #elif defined(CONFIG_COCOA)
5928 case DT_SDL:
5929 cocoa_display_init(ds, full_screen);
5930 break;
5931 #endif
5932 case DT_VNC:
5933 vnc_display_init(ds);
5934 if (vnc_display_open(ds, vnc_display) < 0)
5935 exit(1);
5936
5937 if (show_vnc_port) {
5938 printf("VNC server running on `%s'\n", vnc_display_local_addr(ds));
5939 }
5940 break;
5941 default:
5942 break;
5943 }
5944 dpy_resize(ds);
5945
5946 dcl = ds->listeners;
5947 while (dcl != NULL) {
5948 if (dcl->dpy_refresh != NULL) {
5949 ds->gui_timer = qemu_new_timer(rt_clock, gui_update, ds);
5950 qemu_mod_timer(ds->gui_timer, qemu_get_clock(rt_clock));
5951 }
5952 dcl = dcl->next;
5953 }
5954
5955 if (display_type == DT_NOGRAPHIC || display_type == DT_VNC) {
5956 nographic_timer = qemu_new_timer(rt_clock, nographic_update, NULL);
5957 qemu_mod_timer(nographic_timer, qemu_get_clock(rt_clock));
5958 }
5959
5960 text_consoles_set_display(display_state);
5961
5962 if (qemu_opts_foreach(&qemu_mon_opts, mon_init_func, NULL, 1) != 0)
5963 exit(1);
5964
5965 if (gdbstub_dev && gdbserver_start(gdbstub_dev) < 0) {
5966 fprintf(stderr, "qemu: could not open gdbserver on device '%s'\n",
5967 gdbstub_dev);
5968 exit(1);
5969 }
5970
5971 qdev_machine_creation_done();
5972
5973 if (rom_load_all() != 0) {
5974 fprintf(stderr, "rom loading failed\n");
5975 exit(1);
5976 }
5977
5978 qemu_system_reset();
5979 if (loadvm) {
5980 if (load_vmstate(cur_mon, loadvm) < 0) {
5981 autostart = 0;
5982 }
5983 }
5984
5985 if (incoming) {
5986 qemu_start_incoming_migration(incoming);
5987 } else if (autostart) {
5988 vm_start();
5989 }
5990
5991 #ifndef _WIN32
5992 if (daemonize) {
5993 uint8_t status = 0;
5994 ssize_t len;
5995
5996 again1:
5997 len = write(fds[1], &status, 1);
5998 if (len == -1 && (errno == EINTR))
5999 goto again1;
6000
6001 if (len != 1)
6002 exit(1);
6003
6004 if (chdir("/")) {
6005 perror("not able to chdir to /");
6006 exit(1);
6007 }
6008 TFR(fd = qemu_open("/dev/null", O_RDWR));
6009 if (fd == -1)
6010 exit(1);
6011 }
6012
6013 if (run_as) {
6014 pwd = getpwnam(run_as);
6015 if (!pwd) {
6016 fprintf(stderr, "User \"%s\" doesn't exist\n", run_as);
6017 exit(1);
6018 }
6019 }
6020
6021 if (chroot_dir) {
6022 if (chroot(chroot_dir) < 0) {
6023 fprintf(stderr, "chroot failed\n");
6024 exit(1);
6025 }
6026 if (chdir("/")) {
6027 perror("not able to chdir to /");
6028 exit(1);
6029 }
6030 }
6031
6032 if (run_as) {
6033 if (setgid(pwd->pw_gid) < 0) {
6034 fprintf(stderr, "Failed to setgid(%d)\n", pwd->pw_gid);
6035 exit(1);
6036 }
6037 if (setuid(pwd->pw_uid) < 0) {
6038 fprintf(stderr, "Failed to setuid(%d)\n", pwd->pw_uid);
6039 exit(1);
6040 }
6041 if (setuid(0) != -1) {
6042 fprintf(stderr, "Dropping privileges failed\n");
6043 exit(1);
6044 }
6045 }
6046
6047 if (daemonize) {
6048 dup2(fd, 0);
6049 dup2(fd, 1);
6050 dup2(fd, 2);
6051
6052 close(fd);
6053 }
6054 #endif
6055
6056 main_loop();
6057 quit_timers();
6058 net_cleanup();
6059
6060 return 0;
6061 }
AR7 emulation for QEMU