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Merge remote branch 'qemu-kvm/uq/master' into staging-tmp
[qemu/aliguori-queue.git] / vl.c
blob880bcd5943e9924938596c762a0d8190155de44f
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 static void init_clocks(void)
935 {
936 init_get_clock();
937 rt_clock = qemu_new_clock(QEMU_CLOCK_REALTIME);
938 vm_clock = qemu_new_clock(QEMU_CLOCK_VIRTUAL);
939 host_clock = qemu_new_clock(QEMU_CLOCK_HOST);
940
941 rtc_clock = host_clock;
942 }
943
944 /* save a timer */
945 void qemu_put_timer(QEMUFile *f, QEMUTimer *ts)
946 {
947 uint64_t expire_time;
948
949 if (qemu_timer_pending(ts)) {
950 expire_time = ts->expire_time;
951 } else {
952 expire_time = -1;
953 }
954 qemu_put_be64(f, expire_time);
955 }
956
957 void qemu_get_timer(QEMUFile *f, QEMUTimer *ts)
958 {
959 uint64_t expire_time;
960
961 expire_time = qemu_get_be64(f);
962 if (expire_time != -1) {
963 qemu_mod_timer(ts, expire_time);
964 } else {
965 qemu_del_timer(ts);
966 }
967 }
968
969 static const VMStateDescription vmstate_timers = {
970 .name = "timer",
971 .version_id = 2,
972 .minimum_version_id = 1,
973 .minimum_version_id_old = 1,
974 .fields = (VMStateField []) {
975 VMSTATE_INT64(cpu_ticks_offset, TimersState),
976 VMSTATE_INT64(dummy, TimersState),
977 VMSTATE_INT64_V(cpu_clock_offset, TimersState, 2),
978 VMSTATE_END_OF_LIST()
979 }
980 };
981
982 static void qemu_event_increment(void);
983
984 #ifdef _WIN32
985 static void CALLBACK host_alarm_handler(UINT uTimerID, UINT uMsg,
986 DWORD_PTR dwUser, DWORD_PTR dw1,
987 DWORD_PTR dw2)
988 #else
989 static void host_alarm_handler(int host_signum)
990 #endif
991 {
992 #if 0
993 #define DISP_FREQ 1000
994 {
995 static int64_t delta_min = INT64_MAX;
996 static int64_t delta_max, delta_cum, last_clock, delta, ti;
997 static int count;
998 ti = qemu_get_clock(vm_clock);
999 if (last_clock != 0) {
1000 delta = ti - last_clock;
1001 if (delta < delta_min)
1002 delta_min = delta;
1003 if (delta > delta_max)
1004 delta_max = delta;
1005 delta_cum += delta;
1006 if (++count == DISP_FREQ) {
1007 printf("timer: min=%" PRId64 " us max=%" PRId64 " us avg=%" PRId64 " us avg_freq=%0.3f Hz\n",
1008 muldiv64(delta_min, 1000000, get_ticks_per_sec()),
1009 muldiv64(delta_max, 1000000, get_ticks_per_sec()),
1010 muldiv64(delta_cum, 1000000 / DISP_FREQ, get_ticks_per_sec()),
1011 (double)get_ticks_per_sec() / ((double)delta_cum / DISP_FREQ));
1012 count = 0;
1013 delta_min = INT64_MAX;
1014 delta_max = 0;
1015 delta_cum = 0;
1016 }
1017 }
1018 last_clock = ti;
1019 }
1020 #endif
1021 if (alarm_has_dynticks(alarm_timer) ||
1022 (!use_icount &&
1023 qemu_timer_expired(active_timers[QEMU_CLOCK_VIRTUAL],
1024 qemu_get_clock(vm_clock))) ||
1025 qemu_timer_expired(active_timers[QEMU_CLOCK_REALTIME],
1026 qemu_get_clock(rt_clock)) ||
1027 qemu_timer_expired(active_timers[QEMU_CLOCK_HOST],
1028 qemu_get_clock(host_clock))) {
1029 qemu_event_increment();
1030 if (alarm_timer) alarm_timer->flags |= ALARM_FLAG_EXPIRED;
1031
1032 #ifndef CONFIG_IOTHREAD
1033 if (next_cpu) {
1034 /* stop the currently executing cpu because a timer occured */
1035 cpu_exit(next_cpu);
1036 }
1037 #endif
1038 timer_alarm_pending = 1;
1039 qemu_notify_event();
1040 }
1041 }
1042
1043 static int64_t qemu_next_deadline(void)
1044 {
1045 /* To avoid problems with overflow limit this to 2^32. */
1046 int64_t delta = INT32_MAX;
1047
1048 if (active_timers[QEMU_CLOCK_VIRTUAL]) {
1049 delta = active_timers[QEMU_CLOCK_VIRTUAL]->expire_time -
1050 qemu_get_clock(vm_clock);
1051 }
1052 if (active_timers[QEMU_CLOCK_HOST]) {
1053 int64_t hdelta = active_timers[QEMU_CLOCK_HOST]->expire_time -
1054 qemu_get_clock(host_clock);
1055 if (hdelta < delta)
1056 delta = hdelta;
1057 }
1058
1059 if (delta < 0)
1060 delta = 0;
1061
1062 return delta;
1063 }
1064
1065 #if defined(__linux__)
1066 static uint64_t qemu_next_deadline_dyntick(void)
1067 {
1068 int64_t delta;
1069 int64_t rtdelta;
1070
1071 if (use_icount)
1072 delta = INT32_MAX;
1073 else
1074 delta = (qemu_next_deadline() + 999) / 1000;
1075
1076 if (active_timers[QEMU_CLOCK_REALTIME]) {
1077 rtdelta = (active_timers[QEMU_CLOCK_REALTIME]->expire_time -
1078 qemu_get_clock(rt_clock))*1000;
1079 if (rtdelta < delta)
1080 delta = rtdelta;
1081 }
1082
1083 if (delta < MIN_TIMER_REARM_US)
1084 delta = MIN_TIMER_REARM_US;
1085
1086 return delta;
1087 }
1088 #endif
1089
1090 #ifndef _WIN32
1091
1092 /* Sets a specific flag */
1093 static int fcntl_setfl(int fd, int flag)
1094 {
1095 int flags;
1096
1097 flags = fcntl(fd, F_GETFL);
1098 if (flags == -1)
1099 return -errno;
1100
1101 if (fcntl(fd, F_SETFL, flags | flag) == -1)
1102 return -errno;
1103
1104 return 0;
1105 }
1106
1107 #if defined(__linux__)
1108
1109 #define RTC_FREQ 1024
1110
1111 static void enable_sigio_timer(int fd)
1112 {
1113 struct sigaction act;
1114
1115 /* timer signal */
1116 sigfillset(&act.sa_mask);
1117 act.sa_flags = 0;
1118 act.sa_handler = host_alarm_handler;
1119
1120 sigaction(SIGIO, &act, NULL);
1121 fcntl_setfl(fd, O_ASYNC);
1122 fcntl(fd, F_SETOWN, getpid());
1123 }
1124
1125 static int hpet_start_timer(struct qemu_alarm_timer *t)
1126 {
1127 struct hpet_info info;
1128 int r, fd;
1129
1130 fd = qemu_open("/dev/hpet", O_RDONLY);
1131 if (fd < 0)
1132 return -1;
1133
1134 /* Set frequency */
1135 r = ioctl(fd, HPET_IRQFREQ, RTC_FREQ);
1136 if (r < 0) {
1137 fprintf(stderr, "Could not configure '/dev/hpet' to have a 1024Hz timer. This is not a fatal\n"
1138 "error, but for better emulation accuracy type:\n"
1139 "'echo 1024 > /proc/sys/dev/hpet/max-user-freq' as root.\n");
1140 goto fail;
1141 }
1142
1143 /* Check capabilities */
1144 r = ioctl(fd, HPET_INFO, &info);
1145 if (r < 0)
1146 goto fail;
1147
1148 /* Enable periodic mode */
1149 r = ioctl(fd, HPET_EPI, 0);
1150 if (info.hi_flags && (r < 0))
1151 goto fail;
1152
1153 /* Enable interrupt */
1154 r = ioctl(fd, HPET_IE_ON, 0);
1155 if (r < 0)
1156 goto fail;
1157
1158 enable_sigio_timer(fd);
1159 t->priv = (void *)(long)fd;
1160
1161 return 0;
1162 fail:
1163 close(fd);
1164 return -1;
1165 }
1166
1167 static void hpet_stop_timer(struct qemu_alarm_timer *t)
1168 {
1169 int fd = (long)t->priv;
1170
1171 close(fd);
1172 }
1173
1174 static int rtc_start_timer(struct qemu_alarm_timer *t)
1175 {
1176 int rtc_fd;
1177 unsigned long current_rtc_freq = 0;
1178
1179 TFR(rtc_fd = qemu_open("/dev/rtc", O_RDONLY));
1180 if (rtc_fd < 0)
1181 return -1;
1182 ioctl(rtc_fd, RTC_IRQP_READ, &current_rtc_freq);
1183 if (current_rtc_freq != RTC_FREQ &&
1184 ioctl(rtc_fd, RTC_IRQP_SET, RTC_FREQ) < 0) {
1185 fprintf(stderr, "Could not configure '/dev/rtc' to have a 1024 Hz timer. This is not a fatal\n"
1186 "error, but for better emulation accuracy either use a 2.6 host Linux kernel or\n"
1187 "type 'echo 1024 > /proc/sys/dev/rtc/max-user-freq' as root.\n");
1188 goto fail;
1189 }
1190 if (ioctl(rtc_fd, RTC_PIE_ON, 0) < 0) {
1191 fail:
1192 close(rtc_fd);
1193 return -1;
1194 }
1195
1196 enable_sigio_timer(rtc_fd);
1197
1198 t->priv = (void *)(long)rtc_fd;
1199
1200 return 0;
1201 }
1202
1203 static void rtc_stop_timer(struct qemu_alarm_timer *t)
1204 {
1205 int rtc_fd = (long)t->priv;
1206
1207 close(rtc_fd);
1208 }
1209
1210 static int dynticks_start_timer(struct qemu_alarm_timer *t)
1211 {
1212 struct sigevent ev;
1213 timer_t host_timer;
1214 struct sigaction act;
1215
1216 sigfillset(&act.sa_mask);
1217 act.sa_flags = 0;
1218 act.sa_handler = host_alarm_handler;
1219
1220 sigaction(SIGALRM, &act, NULL);
1221
1222 /*
1223 * Initialize ev struct to 0 to avoid valgrind complaining
1224 * about uninitialized data in timer_create call
1225 */
1226 memset(&ev, 0, sizeof(ev));
1227 ev.sigev_value.sival_int = 0;
1228 ev.sigev_notify = SIGEV_SIGNAL;
1229 ev.sigev_signo = SIGALRM;
1230
1231 if (timer_create(CLOCK_REALTIME, &ev, &host_timer)) {
1232 perror("timer_create");
1233
1234 /* disable dynticks */
1235 fprintf(stderr, "Dynamic Ticks disabled\n");
1236
1237 return -1;
1238 }
1239
1240 t->priv = (void *)(long)host_timer;
1241
1242 return 0;
1243 }
1244
1245 static void dynticks_stop_timer(struct qemu_alarm_timer *t)
1246 {
1247 timer_t host_timer = (timer_t)(long)t->priv;
1248
1249 timer_delete(host_timer);
1250 }
1251
1252 static void dynticks_rearm_timer(struct qemu_alarm_timer *t)
1253 {
1254 timer_t host_timer = (timer_t)(long)t->priv;
1255 struct itimerspec timeout;
1256 int64_t nearest_delta_us = INT64_MAX;
1257 int64_t current_us;
1258
1259 if (!active_timers[QEMU_CLOCK_REALTIME] &&
1260 !active_timers[QEMU_CLOCK_VIRTUAL] &&
1261 !active_timers[QEMU_CLOCK_HOST])
1262 return;
1263
1264 nearest_delta_us = qemu_next_deadline_dyntick();
1265
1266 /* check whether a timer is already running */
1267 if (timer_gettime(host_timer, &timeout)) {
1268 perror("gettime");
1269 fprintf(stderr, "Internal timer error: aborting\n");
1270 exit(1);
1271 }
1272 current_us = timeout.it_value.tv_sec * 1000000 + timeout.it_value.tv_nsec/1000;
1273 if (current_us && current_us <= nearest_delta_us)
1274 return;
1275
1276 timeout.it_interval.tv_sec = 0;
1277 timeout.it_interval.tv_nsec = 0; /* 0 for one-shot timer */
1278 timeout.it_value.tv_sec = nearest_delta_us / 1000000;
1279 timeout.it_value.tv_nsec = (nearest_delta_us % 1000000) * 1000;
1280 if (timer_settime(host_timer, 0 /* RELATIVE */, &timeout, NULL)) {
1281 perror("settime");
1282 fprintf(stderr, "Internal timer error: aborting\n");
1283 exit(1);
1284 }
1285 }
1286
1287 #endif /* defined(__linux__) */
1288
1289 static int unix_start_timer(struct qemu_alarm_timer *t)
1290 {
1291 struct sigaction act;
1292 struct itimerval itv;
1293 int err;
1294
1295 /* timer signal */
1296 sigfillset(&act.sa_mask);
1297 act.sa_flags = 0;
1298 act.sa_handler = host_alarm_handler;
1299
1300 sigaction(SIGALRM, &act, NULL);
1301
1302 itv.it_interval.tv_sec = 0;
1303 /* for i386 kernel 2.6 to get 1 ms */
1304 itv.it_interval.tv_usec = 999;
1305 itv.it_value.tv_sec = 0;
1306 itv.it_value.tv_usec = 10 * 1000;
1307
1308 err = setitimer(ITIMER_REAL, &itv, NULL);
1309 if (err)
1310 return -1;
1311
1312 return 0;
1313 }
1314
1315 static void unix_stop_timer(struct qemu_alarm_timer *t)
1316 {
1317 struct itimerval itv;
1318
1319 memset(&itv, 0, sizeof(itv));
1320 setitimer(ITIMER_REAL, &itv, NULL);
1321 }
1322
1323 #endif /* !defined(_WIN32) */
1324
1325
1326 #ifdef _WIN32
1327
1328 static int win32_start_timer(struct qemu_alarm_timer *t)
1329 {
1330 TIMECAPS tc;
1331 struct qemu_alarm_win32 *data = t->priv;
1332 UINT flags;
1333
1334 memset(&tc, 0, sizeof(tc));
1335 timeGetDevCaps(&tc, sizeof(tc));
1336
1337 if (data->period < tc.wPeriodMin)
1338 data->period = tc.wPeriodMin;
1339
1340 timeBeginPeriod(data->period);
1341
1342 flags = TIME_CALLBACK_FUNCTION;
1343 if (alarm_has_dynticks(t))
1344 flags |= TIME_ONESHOT;
1345 else
1346 flags |= TIME_PERIODIC;
1347
1348 data->timerId = timeSetEvent(1, // interval (ms)
1349 data->period, // resolution
1350 host_alarm_handler, // function
1351 (DWORD)t, // parameter
1352 flags);
1353
1354 if (!data->timerId) {
1355 fprintf(stderr, "Failed to initialize win32 alarm timer: %ld\n",
1356 GetLastError());
1357 timeEndPeriod(data->period);
1358 return -1;
1359 }
1360
1361 return 0;
1362 }
1363
1364 static void win32_stop_timer(struct qemu_alarm_timer *t)
1365 {
1366 struct qemu_alarm_win32 *data = t->priv;
1367
1368 timeKillEvent(data->timerId);
1369 timeEndPeriod(data->period);
1370 }
1371
1372 static void win32_rearm_timer(struct qemu_alarm_timer *t)
1373 {
1374 struct qemu_alarm_win32 *data = t->priv;
1375
1376 if (!active_timers[QEMU_CLOCK_REALTIME] &&
1377 !active_timers[QEMU_CLOCK_VIRTUAL] &&
1378 !active_timers[QEMU_CLOCK_HOST])
1379 return;
1380
1381 timeKillEvent(data->timerId);
1382
1383 data->timerId = timeSetEvent(1,
1384 data->period,
1385 host_alarm_handler,
1386 (DWORD)t,
1387 TIME_ONESHOT | TIME_PERIODIC);
1388
1389 if (!data->timerId) {
1390 fprintf(stderr, "Failed to re-arm win32 alarm timer %ld\n",
1391 GetLastError());
1392
1393 timeEndPeriod(data->period);
1394 exit(1);
1395 }
1396 }
1397
1398 #endif /* _WIN32 */
1399
1400 static int init_timer_alarm(void)
1401 {
1402 struct qemu_alarm_timer *t = NULL;
1403 int i, err = -1;
1404
1405 for (i = 0; alarm_timers[i].name; i++) {
1406 t = &alarm_timers[i];
1407
1408 err = t->start(t);
1409 if (!err)
1410 break;
1411 }
1412
1413 if (err) {
1414 err = -ENOENT;
1415 goto fail;
1416 }
1417
1418 alarm_timer = t;
1419
1420 return 0;
1421
1422 fail:
1423 return err;
1424 }
1425
1426 static void quit_timers(void)
1427 {
1428 alarm_timer->stop(alarm_timer);
1429 alarm_timer = NULL;
1430 }
1431
1432 /***********************************************************/
1433 /* host time/date access */
1434 void qemu_get_timedate(struct tm *tm, int offset)
1435 {
1436 time_t ti;
1437 struct tm *ret;
1438
1439 time(&ti);
1440 ti += offset;
1441 if (rtc_date_offset == -1) {
1442 if (rtc_utc)
1443 ret = gmtime(&ti);
1444 else
1445 ret = localtime(&ti);
1446 } else {
1447 ti -= rtc_date_offset;
1448 ret = gmtime(&ti);
1449 }
1450
1451 memcpy(tm, ret, sizeof(struct tm));
1452 }
1453
1454 int qemu_timedate_diff(struct tm *tm)
1455 {
1456 time_t seconds;
1457
1458 if (rtc_date_offset == -1)
1459 if (rtc_utc)
1460 seconds = mktimegm(tm);
1461 else
1462 seconds = mktime(tm);
1463 else
1464 seconds = mktimegm(tm) + rtc_date_offset;
1465
1466 return seconds - time(NULL);
1467 }
1468
1469 static void configure_rtc_date_offset(const char *startdate, int legacy)
1470 {
1471 time_t rtc_start_date;
1472 struct tm tm;
1473
1474 if (!strcmp(startdate, "now") && legacy) {
1475 rtc_date_offset = -1;
1476 } else {
1477 if (sscanf(startdate, "%d-%d-%dT%d:%d:%d",
1478 &tm.tm_year,
1479 &tm.tm_mon,
1480 &tm.tm_mday,
1481 &tm.tm_hour,
1482 &tm.tm_min,
1483 &tm.tm_sec) == 6) {
1484 /* OK */
1485 } else if (sscanf(startdate, "%d-%d-%d",
1486 &tm.tm_year,
1487 &tm.tm_mon,
1488 &tm.tm_mday) == 3) {
1489 tm.tm_hour = 0;
1490 tm.tm_min = 0;
1491 tm.tm_sec = 0;
1492 } else {
1493 goto date_fail;
1494 }
1495 tm.tm_year -= 1900;
1496 tm.tm_mon--;
1497 rtc_start_date = mktimegm(&tm);
1498 if (rtc_start_date == -1) {
1499 date_fail:
1500 fprintf(stderr, "Invalid date format. Valid formats are:\n"
1501 "'2006-06-17T16:01:21' or '2006-06-17'\n");
1502 exit(1);
1503 }
1504 rtc_date_offset = time(NULL) - rtc_start_date;
1505 }
1506 }
1507
1508 static void configure_rtc(QemuOpts *opts)
1509 {
1510 const char *value;
1511
1512 value = qemu_opt_get(opts, "base");
1513 if (value) {
1514 if (!strcmp(value, "utc")) {
1515 rtc_utc = 1;
1516 } else if (!strcmp(value, "localtime")) {
1517 rtc_utc = 0;
1518 } else {
1519 configure_rtc_date_offset(value, 0);
1520 }
1521 }
1522 value = qemu_opt_get(opts, "clock");
1523 if (value) {
1524 if (!strcmp(value, "host")) {
1525 rtc_clock = host_clock;
1526 } else if (!strcmp(value, "vm")) {
1527 rtc_clock = vm_clock;
1528 } else {
1529 fprintf(stderr, "qemu: invalid option value '%s'\n", value);
1530 exit(1);
1531 }
1532 }
1533 #ifdef CONFIG_TARGET_I386
1534 value = qemu_opt_get(opts, "driftfix");
1535 if (value) {
1536 if (!strcmp(buf, "slew")) {
1537 rtc_td_hack = 1;
1538 } else if (!strcmp(buf, "none")) {
1539 rtc_td_hack = 0;
1540 } else {
1541 fprintf(stderr, "qemu: invalid option value '%s'\n", value);
1542 exit(1);
1543 }
1544 }
1545 #endif
1546 }
1547
1548 #ifdef _WIN32
1549 static void socket_cleanup(void)
1550 {
1551 WSACleanup();
1552 }
1553
1554 static int socket_init(void)
1555 {
1556 WSADATA Data;
1557 int ret, err;
1558
1559 ret = WSAStartup(MAKEWORD(2,2), &Data);
1560 if (ret != 0) {
1561 err = WSAGetLastError();
1562 fprintf(stderr, "WSAStartup: %d\n", err);
1563 return -1;
1564 }
1565 atexit(socket_cleanup);
1566 return 0;
1567 }
1568 #endif
1569
1570 /***********************************************************/
1571 /* Bluetooth support */
1572 static int nb_hcis;
1573 static int cur_hci;
1574 static struct HCIInfo *hci_table[MAX_NICS];
1575
1576 static struct bt_vlan_s {
1577 struct bt_scatternet_s net;
1578 int id;
1579 struct bt_vlan_s *next;
1580 } *first_bt_vlan;
1581
1582 /* find or alloc a new bluetooth "VLAN" */
1583 static struct bt_scatternet_s *qemu_find_bt_vlan(int id)
1584 {
1585 struct bt_vlan_s **pvlan, *vlan;
1586 for (vlan = first_bt_vlan; vlan != NULL; vlan = vlan->next) {
1587 if (vlan->id == id)
1588 return &vlan->net;
1589 }
1590 vlan = qemu_mallocz(sizeof(struct bt_vlan_s));
1591 vlan->id = id;
1592 pvlan = &first_bt_vlan;
1593 while (*pvlan != NULL)
1594 pvlan = &(*pvlan)->next;
1595 *pvlan = vlan;
1596 return &vlan->net;
1597 }
1598
1599 static void null_hci_send(struct HCIInfo *hci, const uint8_t *data, int len)
1600 {
1601 }
1602
1603 static int null_hci_addr_set(struct HCIInfo *hci, const uint8_t *bd_addr)
1604 {
1605 return -ENOTSUP;
1606 }
1607
1608 static struct HCIInfo null_hci = {
1609 .cmd_send = null_hci_send,
1610 .sco_send = null_hci_send,
1611 .acl_send = null_hci_send,
1612 .bdaddr_set = null_hci_addr_set,
1613 };
1614
1615 struct HCIInfo *qemu_next_hci(void)
1616 {
1617 if (cur_hci == nb_hcis)
1618 return &null_hci;
1619
1620 return hci_table[cur_hci++];
1621 }
1622
1623 static struct HCIInfo *hci_init(const char *str)
1624 {
1625 char *endp;
1626 struct bt_scatternet_s *vlan = 0;
1627
1628 if (!strcmp(str, "null"))
1629 /* null */
1630 return &null_hci;
1631 else if (!strncmp(str, "host", 4) && (str[4] == '\0' || str[4] == ':'))
1632 /* host[:hciN] */
1633 return bt_host_hci(str[4] ? str + 5 : "hci0");
1634 else if (!strncmp(str, "hci", 3)) {
1635 /* hci[,vlan=n] */
1636 if (str[3]) {
1637 if (!strncmp(str + 3, ",vlan=", 6)) {
1638 vlan = qemu_find_bt_vlan(strtol(str + 9, &endp, 0));
1639 if (*endp)
1640 vlan = 0;
1641 }
1642 } else
1643 vlan = qemu_find_bt_vlan(0);
1644 if (vlan)
1645 return bt_new_hci(vlan);
1646 }
1647
1648 fprintf(stderr, "qemu: Unknown bluetooth HCI `%s'.\n", str);
1649
1650 return 0;
1651 }
1652
1653 static int bt_hci_parse(const char *str)
1654 {
1655 struct HCIInfo *hci;
1656 bdaddr_t bdaddr;
1657
1658 if (nb_hcis >= MAX_NICS) {
1659 fprintf(stderr, "qemu: Too many bluetooth HCIs (max %i).\n", MAX_NICS);
1660 return -1;
1661 }
1662
1663 hci = hci_init(str);
1664 if (!hci)
1665 return -1;
1666
1667 bdaddr.b[0] = 0x52;
1668 bdaddr.b[1] = 0x54;
1669 bdaddr.b[2] = 0x00;
1670 bdaddr.b[3] = 0x12;
1671 bdaddr.b[4] = 0x34;
1672 bdaddr.b[5] = 0x56 + nb_hcis;
1673 hci->bdaddr_set(hci, bdaddr.b);
1674
1675 hci_table[nb_hcis++] = hci;
1676
1677 return 0;
1678 }
1679
1680 static void bt_vhci_add(int vlan_id)
1681 {
1682 struct bt_scatternet_s *vlan = qemu_find_bt_vlan(vlan_id);
1683
1684 if (!vlan->slave)
1685 fprintf(stderr, "qemu: warning: adding a VHCI to "
1686 "an empty scatternet %i\n", vlan_id);
1687
1688 bt_vhci_init(bt_new_hci(vlan));
1689 }
1690
1691 static struct bt_device_s *bt_device_add(const char *opt)
1692 {
1693 struct bt_scatternet_s *vlan;
1694 int vlan_id = 0;
1695 char *endp = strstr(opt, ",vlan=");
1696 int len = (endp ? endp - opt : strlen(opt)) + 1;
1697 char devname[10];
1698
1699 pstrcpy(devname, MIN(sizeof(devname), len), opt);
1700
1701 if (endp) {
1702 vlan_id = strtol(endp + 6, &endp, 0);
1703 if (*endp) {
1704 fprintf(stderr, "qemu: unrecognised bluetooth vlan Id\n");
1705 return 0;
1706 }
1707 }
1708
1709 vlan = qemu_find_bt_vlan(vlan_id);
1710
1711 if (!vlan->slave)
1712 fprintf(stderr, "qemu: warning: adding a slave device to "
1713 "an empty scatternet %i\n", vlan_id);
1714
1715 if (!strcmp(devname, "keyboard"))
1716 return bt_keyboard_init(vlan);
1717
1718 fprintf(stderr, "qemu: unsupported bluetooth device `%s'\n", devname);
1719 return 0;
1720 }
1721
1722 static int bt_parse(const char *opt)
1723 {
1724 const char *endp, *p;
1725 int vlan;
1726
1727 if (strstart(opt, "hci", &endp)) {
1728 if (!*endp || *endp == ',') {
1729 if (*endp)
1730 if (!strstart(endp, ",vlan=", 0))
1731 opt = endp + 1;
1732
1733 return bt_hci_parse(opt);
1734 }
1735 } else if (strstart(opt, "vhci", &endp)) {
1736 if (!*endp || *endp == ',') {
1737 if (*endp) {
1738 if (strstart(endp, ",vlan=", &p)) {
1739 vlan = strtol(p, (char **) &endp, 0);
1740 if (*endp) {
1741 fprintf(stderr, "qemu: bad scatternet '%s'\n", p);
1742 return 1;
1743 }
1744 } else {
1745 fprintf(stderr, "qemu: bad parameter '%s'\n", endp + 1);
1746 return 1;
1747 }
1748 } else
1749 vlan = 0;
1750
1751 bt_vhci_add(vlan);
1752 return 0;
1753 }
1754 } else if (strstart(opt, "device:", &endp))
1755 return !bt_device_add(endp);
1756
1757 fprintf(stderr, "qemu: bad bluetooth parameter '%s'\n", opt);
1758 return 1;
1759 }
1760
1761 /***********************************************************/
1762 /* QEMU Block devices */
1763
1764 #define HD_ALIAS "index=%d,media=disk"
1765 #define CDROM_ALIAS "index=2,media=cdrom"
1766 #define FD_ALIAS "index=%d,if=floppy"
1767 #define PFLASH_ALIAS "if=pflash"
1768 #define MTD_ALIAS "if=mtd"
1769 #define SD_ALIAS "index=0,if=sd"
1770
1771 QemuOpts *drive_add(const char *file, const char *fmt, ...)
1772 {
1773 va_list ap;
1774 char optstr[1024];
1775 QemuOpts *opts;
1776
1777 va_start(ap, fmt);
1778 vsnprintf(optstr, sizeof(optstr), fmt, ap);
1779 va_end(ap);
1780
1781 opts = qemu_opts_parse(&qemu_drive_opts, optstr, NULL);
1782 if (!opts) {
1783 fprintf(stderr, "%s: huh? duplicate? (%s)\n",
1784 __FUNCTION__, optstr);
1785 return NULL;
1786 }
1787 if (file)
1788 qemu_opt_set(opts, "file", file);
1789 return opts;
1790 }
1791
1792 DriveInfo *drive_get(BlockInterfaceType type, int bus, int unit)
1793 {
1794 DriveInfo *dinfo;
1795
1796 /* seek interface, bus and unit */
1797
1798 QTAILQ_FOREACH(dinfo, &drives, next) {
1799 if (dinfo->type == type &&
1800 dinfo->bus == bus &&
1801 dinfo->unit == unit)
1802 return dinfo;
1803 }
1804
1805 return NULL;
1806 }
1807
1808 DriveInfo *drive_get_by_id(const char *id)
1809 {
1810 DriveInfo *dinfo;
1811
1812 QTAILQ_FOREACH(dinfo, &drives, next) {
1813 if (strcmp(id, dinfo->id))
1814 continue;
1815 return dinfo;
1816 }
1817 return NULL;
1818 }
1819
1820 int drive_get_max_bus(BlockInterfaceType type)
1821 {
1822 int max_bus;
1823 DriveInfo *dinfo;
1824
1825 max_bus = -1;
1826 QTAILQ_FOREACH(dinfo, &drives, next) {
1827 if(dinfo->type == type &&
1828 dinfo->bus > max_bus)
1829 max_bus = dinfo->bus;
1830 }
1831 return max_bus;
1832 }
1833
1834 const char *drive_get_serial(BlockDriverState *bdrv)
1835 {
1836 DriveInfo *dinfo;
1837
1838 QTAILQ_FOREACH(dinfo, &drives, next) {
1839 if (dinfo->bdrv == bdrv)
1840 return dinfo->serial;
1841 }
1842
1843 return "\0";
1844 }
1845
1846 BlockInterfaceErrorAction drive_get_on_error(
1847 BlockDriverState *bdrv, int is_read)
1848 {
1849 DriveInfo *dinfo;
1850
1851 QTAILQ_FOREACH(dinfo, &drives, next) {
1852 if (dinfo->bdrv == bdrv)
1853 return is_read ? dinfo->on_read_error : dinfo->on_write_error;
1854 }
1855
1856 return is_read ? BLOCK_ERR_REPORT : BLOCK_ERR_STOP_ENOSPC;
1857 }
1858
1859 static void bdrv_format_print(void *opaque, const char *name)
1860 {
1861 fprintf(stderr, " %s", name);
1862 }
1863
1864 void drive_uninit(DriveInfo *dinfo)
1865 {
1866 qemu_opts_del(dinfo->opts);
1867 bdrv_delete(dinfo->bdrv);
1868 QTAILQ_REMOVE(&drives, dinfo, next);
1869 qemu_free(dinfo);
1870 }
1871
1872 static int parse_block_error_action(const char *buf, int is_read)
1873 {
1874 if (!strcmp(buf, "ignore")) {
1875 return BLOCK_ERR_IGNORE;
1876 } else if (!is_read && !strcmp(buf, "enospc")) {
1877 return BLOCK_ERR_STOP_ENOSPC;
1878 } else if (!strcmp(buf, "stop")) {
1879 return BLOCK_ERR_STOP_ANY;
1880 } else if (!strcmp(buf, "report")) {
1881 return BLOCK_ERR_REPORT;
1882 } else {
1883 fprintf(stderr, "qemu: '%s' invalid %s error action\n",
1884 buf, is_read ? "read" : "write");
1885 return -1;
1886 }
1887 }
1888
1889 DriveInfo *drive_init(QemuOpts *opts, void *opaque,
1890 int *fatal_error)
1891 {
1892 const char *buf;
1893 const char *file = NULL;
1894 char devname[128];
1895 const char *serial;
1896 const char *mediastr = "";
1897 BlockInterfaceType type;
1898 enum { MEDIA_DISK, MEDIA_CDROM } media;
1899 int bus_id, unit_id;
1900 int cyls, heads, secs, translation;
1901 BlockDriver *drv = NULL;
1902 QEMUMachine *machine = opaque;
1903 int max_devs;
1904 int index;
1905 int cache;
1906 int aio = 0;
1907 int ro = 0;
1908 int bdrv_flags;
1909 int on_read_error, on_write_error;
1910 const char *devaddr;
1911 DriveInfo *dinfo;
1912 int snapshot = 0;
1913
1914 *fatal_error = 1;
1915
1916 translation = BIOS_ATA_TRANSLATION_AUTO;
1917 cache = 1;
1918
1919 if (machine && machine->use_scsi) {
1920 type = IF_SCSI;
1921 max_devs = MAX_SCSI_DEVS;
1922 pstrcpy(devname, sizeof(devname), "scsi");
1923 } else {
1924 type = IF_IDE;
1925 max_devs = MAX_IDE_DEVS;
1926 pstrcpy(devname, sizeof(devname), "ide");
1927 }
1928 media = MEDIA_DISK;
1929
1930 /* extract parameters */
1931 bus_id = qemu_opt_get_number(opts, "bus", 0);
1932 unit_id = qemu_opt_get_number(opts, "unit", -1);
1933 index = qemu_opt_get_number(opts, "index", -1);
1934
1935 cyls = qemu_opt_get_number(opts, "cyls", 0);
1936 heads = qemu_opt_get_number(opts, "heads", 0);
1937 secs = qemu_opt_get_number(opts, "secs", 0);
1938
1939 snapshot = qemu_opt_get_bool(opts, "snapshot", 0);
1940 ro = qemu_opt_get_bool(opts, "readonly", 0);
1941
1942 file = qemu_opt_get(opts, "file");
1943 serial = qemu_opt_get(opts, "serial");
1944
1945 if ((buf = qemu_opt_get(opts, "if")) != NULL) {
1946 pstrcpy(devname, sizeof(devname), buf);
1947 if (!strcmp(buf, "ide")) {
1948 type = IF_IDE;
1949 max_devs = MAX_IDE_DEVS;
1950 } else if (!strcmp(buf, "scsi")) {
1951 type = IF_SCSI;
1952 max_devs = MAX_SCSI_DEVS;
1953 } else if (!strcmp(buf, "floppy")) {
1954 type = IF_FLOPPY;
1955 max_devs = 0;
1956 } else if (!strcmp(buf, "pflash")) {
1957 type = IF_PFLASH;
1958 max_devs = 0;
1959 } else if (!strcmp(buf, "mtd")) {
1960 type = IF_MTD;
1961 max_devs = 0;
1962 } else if (!strcmp(buf, "sd")) {
1963 type = IF_SD;
1964 max_devs = 0;
1965 } else if (!strcmp(buf, "virtio")) {
1966 type = IF_VIRTIO;
1967 max_devs = 0;
1968 } else if (!strcmp(buf, "xen")) {
1969 type = IF_XEN;
1970 max_devs = 0;
1971 } else if (!strcmp(buf, "none")) {
1972 type = IF_NONE;
1973 max_devs = 0;
1974 } else {
1975 fprintf(stderr, "qemu: unsupported bus type '%s'\n", buf);
1976 return NULL;
1977 }
1978 }
1979
1980 if (cyls || heads || secs) {
1981 if (cyls < 1 || (type == IF_IDE && cyls > 16383)) {
1982 fprintf(stderr, "qemu: '%s' invalid physical cyls number\n", buf);
1983 return NULL;
1984 }
1985 if (heads < 1 || (type == IF_IDE && heads > 16)) {
1986 fprintf(stderr, "qemu: '%s' invalid physical heads number\n", buf);
1987 return NULL;
1988 }
1989 if (secs < 1 || (type == IF_IDE && secs > 63)) {
1990 fprintf(stderr, "qemu: '%s' invalid physical secs number\n", buf);
1991 return NULL;
1992 }
1993 }
1994
1995 if ((buf = qemu_opt_get(opts, "trans")) != NULL) {
1996 if (!cyls) {
1997 fprintf(stderr,
1998 "qemu: '%s' trans must be used with cyls,heads and secs\n",
1999 buf);
2000 return NULL;
2001 }
2002 if (!strcmp(buf, "none"))
2003 translation = BIOS_ATA_TRANSLATION_NONE;
2004 else if (!strcmp(buf, "lba"))
2005 translation = BIOS_ATA_TRANSLATION_LBA;
2006 else if (!strcmp(buf, "auto"))
2007 translation = BIOS_ATA_TRANSLATION_AUTO;
2008 else {
2009 fprintf(stderr, "qemu: '%s' invalid translation type\n", buf);
2010 return NULL;
2011 }
2012 }
2013
2014 if ((buf = qemu_opt_get(opts, "media")) != NULL) {
2015 if (!strcmp(buf, "disk")) {
2016 media = MEDIA_DISK;
2017 } else if (!strcmp(buf, "cdrom")) {
2018 if (cyls || secs || heads) {
2019 fprintf(stderr,
2020 "qemu: '%s' invalid physical CHS format\n", buf);
2021 return NULL;
2022 }
2023 media = MEDIA_CDROM;
2024 } else {
2025 fprintf(stderr, "qemu: '%s' invalid media\n", buf);
2026 return NULL;
2027 }
2028 }
2029
2030 if ((buf = qemu_opt_get(opts, "cache")) != NULL) {
2031 if (!strcmp(buf, "off") || !strcmp(buf, "none"))
2032 cache = 0;
2033 else if (!strcmp(buf, "writethrough"))
2034 cache = 1;
2035 else if (!strcmp(buf, "writeback"))
2036 cache = 2;
2037 else {
2038 fprintf(stderr, "qemu: invalid cache option\n");
2039 return NULL;
2040 }
2041 }
2042
2043 #ifdef CONFIG_LINUX_AIO
2044 if ((buf = qemu_opt_get(opts, "aio")) != NULL) {
2045 if (!strcmp(buf, "threads"))
2046 aio = 0;
2047 else if (!strcmp(buf, "native"))
2048 aio = 1;
2049 else {
2050 fprintf(stderr, "qemu: invalid aio option\n");
2051 return NULL;
2052 }
2053 }
2054 #endif
2055
2056 if ((buf = qemu_opt_get(opts, "format")) != NULL) {
2057 if (strcmp(buf, "?") == 0) {
2058 fprintf(stderr, "qemu: Supported formats:");
2059 bdrv_iterate_format(bdrv_format_print, NULL);
2060 fprintf(stderr, "\n");
2061 return NULL;
2062 }
2063 drv = bdrv_find_whitelisted_format(buf);
2064 if (!drv) {
2065 fprintf(stderr, "qemu: '%s' invalid format\n", buf);
2066 return NULL;
2067 }
2068 }
2069
2070 on_write_error = BLOCK_ERR_STOP_ENOSPC;
2071 if ((buf = qemu_opt_get(opts, "werror")) != NULL) {
2072 if (type != IF_IDE && type != IF_SCSI && type != IF_VIRTIO) {
2073 fprintf(stderr, "werror is no supported by this format\n");
2074 return NULL;
2075 }
2076
2077 on_write_error = parse_block_error_action(buf, 0);
2078 if (on_write_error < 0) {
2079 return NULL;
2080 }
2081 }
2082
2083 on_read_error = BLOCK_ERR_REPORT;
2084 if ((buf = qemu_opt_get(opts, "rerror")) != NULL) {
2085 if (type != IF_IDE && type != IF_VIRTIO) {
2086 fprintf(stderr, "rerror is no supported by this format\n");
2087 return NULL;
2088 }
2089
2090 on_read_error = parse_block_error_action(buf, 1);
2091 if (on_read_error < 0) {
2092 return NULL;
2093 }
2094 }
2095
2096 if ((devaddr = qemu_opt_get(opts, "addr")) != NULL) {
2097 if (type != IF_VIRTIO) {
2098 fprintf(stderr, "addr is not supported\n");
2099 return NULL;
2100 }
2101 }
2102
2103 /* compute bus and unit according index */
2104
2105 if (index != -1) {
2106 if (bus_id != 0 || unit_id != -1) {
2107 fprintf(stderr,
2108 "qemu: index cannot be used with bus and unit\n");
2109 return NULL;
2110 }
2111 if (max_devs == 0)
2112 {
2113 unit_id = index;
2114 bus_id = 0;
2115 } else {
2116 unit_id = index % max_devs;
2117 bus_id = index / max_devs;
2118 }
2119 }
2120
2121 /* if user doesn't specify a unit_id,
2122 * try to find the first free
2123 */
2124
2125 if (unit_id == -1) {
2126 unit_id = 0;
2127 while (drive_get(type, bus_id, unit_id) != NULL) {
2128 unit_id++;
2129 if (max_devs && unit_id >= max_devs) {
2130 unit_id -= max_devs;
2131 bus_id++;
2132 }
2133 }
2134 }
2135
2136 /* check unit id */
2137
2138 if (max_devs && unit_id >= max_devs) {
2139 fprintf(stderr, "qemu: unit %d too big (max is %d)\n",
2140 unit_id, max_devs - 1);
2141 return NULL;
2142 }
2143
2144 /*
2145 * ignore multiple definitions
2146 */
2147
2148 if (drive_get(type, bus_id, unit_id) != NULL) {
2149 *fatal_error = 0;
2150 return NULL;
2151 }
2152
2153 /* init */
2154
2155 dinfo = qemu_mallocz(sizeof(*dinfo));
2156 if ((buf = qemu_opts_id(opts)) != NULL) {
2157 dinfo->id = qemu_strdup(buf);
2158 } else {
2159 /* no id supplied -> create one */
2160 dinfo->id = qemu_mallocz(32);
2161 if (type == IF_IDE || type == IF_SCSI)
2162 mediastr = (media == MEDIA_CDROM) ? "-cd" : "-hd";
2163 if (max_devs)
2164 snprintf(dinfo->id, 32, "%s%i%s%i",
2165 devname, bus_id, mediastr, unit_id);
2166 else
2167 snprintf(dinfo->id, 32, "%s%s%i",
2168 devname, mediastr, unit_id);
2169 }
2170 dinfo->bdrv = bdrv_new(dinfo->id);
2171 dinfo->devaddr = devaddr;
2172 dinfo->type = type;
2173 dinfo->bus = bus_id;
2174 dinfo->unit = unit_id;
2175 dinfo->on_read_error = on_read_error;
2176 dinfo->on_write_error = on_write_error;
2177 dinfo->opts = opts;
2178 if (serial)
2179 strncpy(dinfo->serial, serial, sizeof(serial));
2180 QTAILQ_INSERT_TAIL(&drives, dinfo, next);
2181
2182 switch(type) {
2183 case IF_IDE:
2184 case IF_SCSI:
2185 case IF_XEN:
2186 case IF_NONE:
2187 switch(media) {
2188 case MEDIA_DISK:
2189 if (cyls != 0) {
2190 bdrv_set_geometry_hint(dinfo->bdrv, cyls, heads, secs);
2191 bdrv_set_translation_hint(dinfo->bdrv, translation);
2192 }
2193 break;
2194 case MEDIA_CDROM:
2195 bdrv_set_type_hint(dinfo->bdrv, BDRV_TYPE_CDROM);
2196 break;
2197 }
2198 break;
2199 case IF_SD:
2200 /* FIXME: This isn't really a floppy, but it's a reasonable
2201 approximation. */
2202 case IF_FLOPPY:
2203 bdrv_set_type_hint(dinfo->bdrv, BDRV_TYPE_FLOPPY);
2204 break;
2205 case IF_PFLASH:
2206 case IF_MTD:
2207 break;
2208 case IF_VIRTIO:
2209 /* add virtio block device */
2210 opts = qemu_opts_create(&qemu_device_opts, NULL, 0);
2211 qemu_opt_set(opts, "driver", "virtio-blk-pci");
2212 qemu_opt_set(opts, "drive", dinfo->id);
2213 if (devaddr)
2214 qemu_opt_set(opts, "addr", devaddr);
2215 break;
2216 case IF_COUNT:
2217 abort();
2218 }
2219 if (!file) {
2220 *fatal_error = 0;
2221 return NULL;
2222 }
2223 bdrv_flags = 0;
2224 if (snapshot) {
2225 bdrv_flags |= BDRV_O_SNAPSHOT;
2226 cache = 2; /* always use write-back with snapshot */
2227 }
2228 if (cache == 0) /* no caching */
2229 bdrv_flags |= BDRV_O_NOCACHE;
2230 else if (cache == 2) /* write-back */
2231 bdrv_flags |= BDRV_O_CACHE_WB;
2232
2233 if (aio == 1) {
2234 bdrv_flags |= BDRV_O_NATIVE_AIO;
2235 } else {
2236 bdrv_flags &= ~BDRV_O_NATIVE_AIO;
2237 }
2238
2239 if (ro == 1) {
2240 if (type != IF_SCSI && type != IF_VIRTIO && type != IF_FLOPPY) {
2241 fprintf(stderr, "qemu: readonly flag not supported for drive with this interface\n");
2242 return NULL;
2243 }
2244 }
2245 /*
2246 * cdrom is read-only. Set it now, after above interface checking
2247 * since readonly attribute not explicitly required, so no error.
2248 */
2249 if (media == MEDIA_CDROM) {
2250 ro = 1;
2251 }
2252 bdrv_flags |= ro ? 0 : BDRV_O_RDWR;
2253
2254 if (bdrv_open2(dinfo->bdrv, file, bdrv_flags, drv) < 0) {
2255 fprintf(stderr, "qemu: could not open disk image %s: %s\n",
2256 file, strerror(errno));
2257 return NULL;
2258 }
2259
2260 if (bdrv_key_required(dinfo->bdrv))
2261 autostart = 0;
2262 *fatal_error = 0;
2263 return dinfo;
2264 }
2265
2266 static int drive_init_func(QemuOpts *opts, void *opaque)
2267 {
2268 QEMUMachine *machine = opaque;
2269 int fatal_error = 0;
2270
2271 if (drive_init(opts, machine, &fatal_error) == NULL) {
2272 if (fatal_error)
2273 return 1;
2274 }
2275 return 0;
2276 }
2277
2278 static int drive_enable_snapshot(QemuOpts *opts, void *opaque)
2279 {
2280 if (NULL == qemu_opt_get(opts, "snapshot")) {
2281 qemu_opt_set(opts, "snapshot", "on");
2282 }
2283 return 0;
2284 }
2285
2286 void qemu_register_boot_set(QEMUBootSetHandler *func, void *opaque)
2287 {
2288 boot_set_handler = func;
2289 boot_set_opaque = opaque;
2290 }
2291
2292 int qemu_boot_set(const char *boot_devices)
2293 {
2294 if (!boot_set_handler) {
2295 return -EINVAL;
2296 }
2297 return boot_set_handler(boot_set_opaque, boot_devices);
2298 }
2299
2300 static int parse_bootdevices(char *devices)
2301 {
2302 /* We just do some generic consistency checks */
2303 const char *p;
2304 int bitmap = 0;
2305
2306 for (p = devices; *p != '\0'; p++) {
2307 /* Allowed boot devices are:
2308 * a-b: floppy disk drives
2309 * c-f: IDE disk drives
2310 * g-m: machine implementation dependant drives
2311 * n-p: network devices
2312 * It's up to each machine implementation to check if the given boot
2313 * devices match the actual hardware implementation and firmware
2314 * features.
2315 */
2316 if (*p < 'a' || *p > 'p') {
2317 fprintf(stderr, "Invalid boot device '%c'\n", *p);
2318 exit(1);
2319 }
2320 if (bitmap & (1 << (*p - 'a'))) {
2321 fprintf(stderr, "Boot device '%c' was given twice\n", *p);
2322 exit(1);
2323 }
2324 bitmap |= 1 << (*p - 'a');
2325 }
2326 return bitmap;
2327 }
2328
2329 static void restore_boot_devices(void *opaque)
2330 {
2331 char *standard_boot_devices = opaque;
2332
2333 qemu_boot_set(standard_boot_devices);
2334
2335 qemu_unregister_reset(restore_boot_devices, standard_boot_devices);
2336 qemu_free(standard_boot_devices);
2337 }
2338
2339 static void numa_add(const char *optarg)
2340 {
2341 char option[128];
2342 char *endptr;
2343 unsigned long long value, endvalue;
2344 int nodenr;
2345
2346 optarg = get_opt_name(option, 128, optarg, ',') + 1;
2347 if (!strcmp(option, "node")) {
2348 if (get_param_value(option, 128, "nodeid", optarg) == 0) {
2349 nodenr = nb_numa_nodes;
2350 } else {
2351 nodenr = strtoull(option, NULL, 10);
2352 }
2353
2354 if (get_param_value(option, 128, "mem", optarg) == 0) {
2355 node_mem[nodenr] = 0;
2356 } else {
2357 value = strtoull(option, &endptr, 0);
2358 switch (*endptr) {
2359 case 0: case 'M': case 'm':
2360 value <<= 20;
2361 break;
2362 case 'G': case 'g':
2363 value <<= 30;
2364 break;
2365 }
2366 node_mem[nodenr] = value;
2367 }
2368 if (get_param_value(option, 128, "cpus", optarg) == 0) {
2369 node_cpumask[nodenr] = 0;
2370 } else {
2371 value = strtoull(option, &endptr, 10);
2372 if (value >= 64) {
2373 value = 63;
2374 fprintf(stderr, "only 64 CPUs in NUMA mode supported.\n");
2375 } else {
2376 if (*endptr == '-') {
2377 endvalue = strtoull(endptr+1, &endptr, 10);
2378 if (endvalue >= 63) {
2379 endvalue = 62;
2380 fprintf(stderr,
2381 "only 63 CPUs in NUMA mode supported.\n");
2382 }
2383 value = (2ULL << endvalue) - (1ULL << value);
2384 } else {
2385 value = 1ULL << value;
2386 }
2387 }
2388 node_cpumask[nodenr] = value;
2389 }
2390 nb_numa_nodes++;
2391 }
2392 return;
2393 }
2394
2395 static void smp_parse(const char *optarg)
2396 {
2397 int smp, sockets = 0, threads = 0, cores = 0;
2398 char *endptr;
2399 char option[128];
2400
2401 smp = strtoul(optarg, &endptr, 10);
2402 if (endptr != optarg) {
2403 if (*endptr == ',') {
2404 endptr++;
2405 }
2406 }
2407 if (get_param_value(option, 128, "sockets", endptr) != 0)
2408 sockets = strtoull(option, NULL, 10);
2409 if (get_param_value(option, 128, "cores", endptr) != 0)
2410 cores = strtoull(option, NULL, 10);
2411 if (get_param_value(option, 128, "threads", endptr) != 0)
2412 threads = strtoull(option, NULL, 10);
2413 if (get_param_value(option, 128, "maxcpus", endptr) != 0)
2414 max_cpus = strtoull(option, NULL, 10);
2415
2416 /* compute missing values, prefer sockets over cores over threads */
2417 if (smp == 0 || sockets == 0) {
2418 sockets = sockets > 0 ? sockets : 1;
2419 cores = cores > 0 ? cores : 1;
2420 threads = threads > 0 ? threads : 1;
2421 if (smp == 0) {
2422 smp = cores * threads * sockets;
2423 }
2424 } else {
2425 if (cores == 0) {
2426 threads = threads > 0 ? threads : 1;
2427 cores = smp / (sockets * threads);
2428 } else {
2429 if (sockets) {
2430 threads = smp / (cores * sockets);
2431 }
2432 }
2433 }
2434 smp_cpus = smp;
2435 smp_cores = cores > 0 ? cores : 1;
2436 smp_threads = threads > 0 ? threads : 1;
2437 if (max_cpus == 0)
2438 max_cpus = smp_cpus;
2439 }
2440
2441 /***********************************************************/
2442 /* USB devices */
2443
2444 static int usb_device_add(const char *devname, int is_hotplug)
2445 {
2446 const char *p;
2447 USBDevice *dev = NULL;
2448
2449 if (!usb_enabled)
2450 return -1;
2451
2452 /* drivers with .usbdevice_name entry in USBDeviceInfo */
2453 dev = usbdevice_create(devname);
2454 if (dev)
2455 goto done;
2456
2457 /* the other ones */
2458 if (strstart(devname, "host:", &p)) {
2459 dev = usb_host_device_open(p);
2460 } else if (!strcmp(devname, "bt") || strstart(devname, "bt:", &p)) {
2461 dev = usb_bt_init(devname[2] ? hci_init(p) :
2462 bt_new_hci(qemu_find_bt_vlan(0)));
2463 } else {
2464 return -1;
2465 }
2466 if (!dev)
2467 return -1;
2468
2469 done:
2470 return 0;
2471 }
2472
2473 static int usb_device_del(const char *devname)
2474 {
2475 int bus_num, addr;
2476 const char *p;
2477
2478 if (strstart(devname, "host:", &p))
2479 return usb_host_device_close(p);
2480
2481 if (!usb_enabled)
2482 return -1;
2483
2484 p = strchr(devname, '.');
2485 if (!p)
2486 return -1;
2487 bus_num = strtoul(devname, NULL, 0);
2488 addr = strtoul(p + 1, NULL, 0);
2489
2490 return usb_device_delete_addr(bus_num, addr);
2491 }
2492
2493 static int usb_parse(const char *cmdline)
2494 {
2495 int r;
2496 r = usb_device_add(cmdline, 0);
2497 if (r < 0) {
2498 fprintf(stderr, "qemu: could not add USB device '%s'\n", cmdline);
2499 }
2500 return r;
2501 }
2502
2503 void do_usb_add(Monitor *mon, const QDict *qdict)
2504 {
2505 const char *devname = qdict_get_str(qdict, "devname");
2506 if (usb_device_add(devname, 1) < 0) {
2507 qemu_error("could not add USB device '%s'\n", devname);
2508 }
2509 }
2510
2511 void do_usb_del(Monitor *mon, const QDict *qdict)
2512 {
2513 const char *devname = qdict_get_str(qdict, "devname");
2514 if (usb_device_del(devname) < 0) {
2515 qemu_error("could not delete USB device '%s'\n", devname);
2516 }
2517 }
2518
2519 /***********************************************************/
2520 /* PCMCIA/Cardbus */
2521
2522 static struct pcmcia_socket_entry_s {
2523 PCMCIASocket *socket;
2524 struct pcmcia_socket_entry_s *next;
2525 } *pcmcia_sockets = 0;
2526
2527 void pcmcia_socket_register(PCMCIASocket *socket)
2528 {
2529 struct pcmcia_socket_entry_s *entry;
2530
2531 entry = qemu_malloc(sizeof(struct pcmcia_socket_entry_s));
2532 entry->socket = socket;
2533 entry->next = pcmcia_sockets;
2534 pcmcia_sockets = entry;
2535 }
2536
2537 void pcmcia_socket_unregister(PCMCIASocket *socket)
2538 {
2539 struct pcmcia_socket_entry_s *entry, **ptr;
2540
2541 ptr = &pcmcia_sockets;
2542 for (entry = *ptr; entry; ptr = &entry->next, entry = *ptr)
2543 if (entry->socket == socket) {
2544 *ptr = entry->next;
2545 qemu_free(entry);
2546 }
2547 }
2548
2549 void pcmcia_info(Monitor *mon)
2550 {
2551 struct pcmcia_socket_entry_s *iter;
2552
2553 if (!pcmcia_sockets)
2554 monitor_printf(mon, "No PCMCIA sockets\n");
2555
2556 for (iter = pcmcia_sockets; iter; iter = iter->next)
2557 monitor_printf(mon, "%s: %s\n", iter->socket->slot_string,
2558 iter->socket->attached ? iter->socket->card_string :
2559 "Empty");
2560 }
2561
2562 /***********************************************************/
2563 /* register display */
2564
2565 struct DisplayAllocator default_allocator = {
2566 defaultallocator_create_displaysurface,
2567 defaultallocator_resize_displaysurface,
2568 defaultallocator_free_displaysurface
2569 };
2570
2571 void register_displaystate(DisplayState *ds)
2572 {
2573 DisplayState **s;
2574 s = &display_state;
2575 while (*s != NULL)
2576 s = &(*s)->next;
2577 ds->next = NULL;
2578 *s = ds;
2579 }
2580
2581 DisplayState *get_displaystate(void)
2582 {
2583 return display_state;
2584 }
2585
2586 DisplayAllocator *register_displayallocator(DisplayState *ds, DisplayAllocator *da)
2587 {
2588 if(ds->allocator == &default_allocator) ds->allocator = da;
2589 return ds->allocator;
2590 }
2591
2592 /* dumb display */
2593
2594 static void dumb_display_init(void)
2595 {
2596 DisplayState *ds = qemu_mallocz(sizeof(DisplayState));
2597 ds->allocator = &default_allocator;
2598 ds->surface = qemu_create_displaysurface(ds, 640, 480);
2599 register_displaystate(ds);
2600 }
2601
2602 /***********************************************************/
2603 /* I/O handling */
2604
2605 typedef struct IOHandlerRecord {
2606 int fd;
2607 IOCanRWHandler *fd_read_poll;
2608 IOHandler *fd_read;
2609 IOHandler *fd_write;
2610 int deleted;
2611 void *opaque;
2612 /* temporary data */
2613 struct pollfd *ufd;
2614 struct IOHandlerRecord *next;
2615 } IOHandlerRecord;
2616
2617 static IOHandlerRecord *first_io_handler;
2618
2619 /* XXX: fd_read_poll should be suppressed, but an API change is
2620 necessary in the character devices to suppress fd_can_read(). */
2621 int qemu_set_fd_handler2(int fd,
2622 IOCanRWHandler *fd_read_poll,
2623 IOHandler *fd_read,
2624 IOHandler *fd_write,
2625 void *opaque)
2626 {
2627 IOHandlerRecord **pioh, *ioh;
2628
2629 if (!fd_read && !fd_write) {
2630 pioh = &first_io_handler;
2631 for(;;) {
2632 ioh = *pioh;
2633 if (ioh == NULL)
2634 break;
2635 if (ioh->fd == fd) {
2636 ioh->deleted = 1;
2637 break;
2638 }
2639 pioh = &ioh->next;
2640 }
2641 } else {
2642 for(ioh = first_io_handler; ioh != NULL; ioh = ioh->next) {
2643 if (ioh->fd == fd)
2644 goto found;
2645 }
2646 ioh = qemu_mallocz(sizeof(IOHandlerRecord));
2647 ioh->next = first_io_handler;
2648 first_io_handler = ioh;
2649 found:
2650 ioh->fd = fd;
2651 ioh->fd_read_poll = fd_read_poll;
2652 ioh->fd_read = fd_read;
2653 ioh->fd_write = fd_write;
2654 ioh->opaque = opaque;
2655 ioh->deleted = 0;
2656 }
2657 return 0;
2658 }
2659
2660 int qemu_set_fd_handler(int fd,
2661 IOHandler *fd_read,
2662 IOHandler *fd_write,
2663 void *opaque)
2664 {
2665 return qemu_set_fd_handler2(fd, NULL, fd_read, fd_write, opaque);
2666 }
2667
2668 #ifdef _WIN32
2669 /***********************************************************/
2670 /* Polling handling */
2671
2672 typedef struct PollingEntry {
2673 PollingFunc *func;
2674 void *opaque;
2675 struct PollingEntry *next;
2676 } PollingEntry;
2677
2678 static PollingEntry *first_polling_entry;
2679
2680 int qemu_add_polling_cb(PollingFunc *func, void *opaque)
2681 {
2682 PollingEntry **ppe, *pe;
2683 pe = qemu_mallocz(sizeof(PollingEntry));
2684 pe->func = func;
2685 pe->opaque = opaque;
2686 for(ppe = &first_polling_entry; *ppe != NULL; ppe = &(*ppe)->next);
2687 *ppe = pe;
2688 return 0;
2689 }
2690
2691 void qemu_del_polling_cb(PollingFunc *func, void *opaque)
2692 {
2693 PollingEntry **ppe, *pe;
2694 for(ppe = &first_polling_entry; *ppe != NULL; ppe = &(*ppe)->next) {
2695 pe = *ppe;
2696 if (pe->func == func && pe->opaque == opaque) {
2697 *ppe = pe->next;
2698 qemu_free(pe);
2699 break;
2700 }
2701 }
2702 }
2703
2704 /***********************************************************/
2705 /* Wait objects support */
2706 typedef struct WaitObjects {
2707 int num;
2708 HANDLE events[MAXIMUM_WAIT_OBJECTS + 1];
2709 WaitObjectFunc *func[MAXIMUM_WAIT_OBJECTS + 1];
2710 void *opaque[MAXIMUM_WAIT_OBJECTS + 1];
2711 } WaitObjects;
2712
2713 static WaitObjects wait_objects = {0};
2714
2715 int qemu_add_wait_object(HANDLE handle, WaitObjectFunc *func, void *opaque)
2716 {
2717 WaitObjects *w = &wait_objects;
2718
2719 if (w->num >= MAXIMUM_WAIT_OBJECTS)
2720 return -1;
2721 w->events[w->num] = handle;
2722 w->func[w->num] = func;
2723 w->opaque[w->num] = opaque;
2724 w->num++;
2725 return 0;
2726 }
2727
2728 void qemu_del_wait_object(HANDLE handle, WaitObjectFunc *func, void *opaque)
2729 {
2730 int i, found;
2731 WaitObjects *w = &wait_objects;
2732
2733 found = 0;
2734 for (i = 0; i < w->num; i++) {
2735 if (w->events[i] == handle)
2736 found = 1;
2737 if (found) {
2738 w->events[i] = w->events[i + 1];
2739 w->func[i] = w->func[i + 1];
2740 w->opaque[i] = w->opaque[i + 1];
2741 }
2742 }
2743 if (found)
2744 w->num--;
2745 }
2746 #endif
2747
2748 /***********************************************************/
2749 /* ram save/restore */
2750
2751 #define RAM_SAVE_FLAG_FULL 0x01 /* Obsolete, not used anymore */
2752 #define RAM_SAVE_FLAG_COMPRESS 0x02
2753 #define RAM_SAVE_FLAG_MEM_SIZE 0x04
2754 #define RAM_SAVE_FLAG_PAGE 0x08
2755 #define RAM_SAVE_FLAG_EOS 0x10
2756
2757 static int is_dup_page(uint8_t *page, uint8_t ch)
2758 {
2759 uint32_t val = ch << 24 | ch << 16 | ch << 8 | ch;
2760 uint32_t *array = (uint32_t *)page;
2761 int i;
2762
2763 for (i = 0; i < (TARGET_PAGE_SIZE / 4); i++) {
2764 if (array[i] != val)
2765 return 0;
2766 }
2767
2768 return 1;
2769 }
2770
2771 static int ram_save_block(QEMUFile *f)
2772 {
2773 static ram_addr_t current_addr = 0;
2774 ram_addr_t saved_addr = current_addr;
2775 ram_addr_t addr = 0;
2776 int found = 0;
2777
2778 while (addr < last_ram_offset) {
2779 if (cpu_physical_memory_get_dirty(current_addr, MIGRATION_DIRTY_FLAG)) {
2780 uint8_t *p;
2781
2782 cpu_physical_memory_reset_dirty(current_addr,
2783 current_addr + TARGET_PAGE_SIZE,
2784 MIGRATION_DIRTY_FLAG);
2785
2786 p = qemu_get_ram_ptr(current_addr);
2787
2788 if (is_dup_page(p, *p)) {
2789 qemu_put_be64(f, current_addr | RAM_SAVE_FLAG_COMPRESS);
2790 qemu_put_byte(f, *p);
2791 } else {
2792 qemu_put_be64(f, current_addr | RAM_SAVE_FLAG_PAGE);
2793 qemu_put_buffer(f, p, TARGET_PAGE_SIZE);
2794 }
2795
2796 found = 1;
2797 break;
2798 }
2799 addr += TARGET_PAGE_SIZE;
2800 current_addr = (saved_addr + addr) % last_ram_offset;
2801 }
2802
2803 return found;
2804 }
2805
2806 static uint64_t bytes_transferred;
2807
2808 static ram_addr_t ram_save_remaining(void)
2809 {
2810 ram_addr_t addr;
2811 ram_addr_t count = 0;
2812
2813 for (addr = 0; addr < last_ram_offset; addr += TARGET_PAGE_SIZE) {
2814 if (cpu_physical_memory_get_dirty(addr, MIGRATION_DIRTY_FLAG))
2815 count++;
2816 }
2817
2818 return count;
2819 }
2820
2821 uint64_t ram_bytes_remaining(void)
2822 {
2823 return ram_save_remaining() * TARGET_PAGE_SIZE;
2824 }
2825
2826 uint64_t ram_bytes_transferred(void)
2827 {
2828 return bytes_transferred;
2829 }
2830
2831 uint64_t ram_bytes_total(void)
2832 {
2833 return last_ram_offset;
2834 }
2835
2836 static int ram_save_live(Monitor *mon, QEMUFile *f, int stage, void *opaque)
2837 {
2838 ram_addr_t addr;
2839 uint64_t bytes_transferred_last;
2840 double bwidth = 0;
2841 uint64_t expected_time = 0;
2842
2843 if (stage < 0) {
2844 cpu_physical_memory_set_dirty_tracking(0);
2845 return 0;
2846 }
2847
2848 if (cpu_physical_sync_dirty_bitmap(0, TARGET_PHYS_ADDR_MAX) != 0) {
2849 qemu_file_set_error(f);
2850 return 0;
2851 }
2852
2853 if (stage == 1) {
2854 bytes_transferred = 0;
2855
2856 /* Make sure all dirty bits are set */
2857 for (addr = 0; addr < last_ram_offset; addr += TARGET_PAGE_SIZE) {
2858 if (!cpu_physical_memory_get_dirty(addr, MIGRATION_DIRTY_FLAG))
2859 cpu_physical_memory_set_dirty(addr);
2860 }
2861
2862 /* Enable dirty memory tracking */
2863 cpu_physical_memory_set_dirty_tracking(1);
2864
2865 qemu_put_be64(f, last_ram_offset | RAM_SAVE_FLAG_MEM_SIZE);
2866 }
2867
2868 bytes_transferred_last = bytes_transferred;
2869 bwidth = get_clock();
2870
2871 while (!qemu_file_rate_limit(f)) {
2872 int ret;
2873
2874 ret = ram_save_block(f);
2875 bytes_transferred += ret * TARGET_PAGE_SIZE;
2876 if (ret == 0) /* no more blocks */
2877 break;
2878 }
2879
2880 bwidth = get_clock() - bwidth;
2881 bwidth = (bytes_transferred - bytes_transferred_last) / bwidth;
2882
2883 /* if we haven't transferred anything this round, force expected_time to a
2884 * a very high value, but without crashing */
2885 if (bwidth == 0)
2886 bwidth = 0.000001;
2887
2888 /* try transferring iterative blocks of memory */
2889 if (stage == 3) {
2890 /* flush all remaining blocks regardless of rate limiting */
2891 while (ram_save_block(f) != 0) {
2892 bytes_transferred += TARGET_PAGE_SIZE;
2893 }
2894 cpu_physical_memory_set_dirty_tracking(0);
2895 }
2896
2897 qemu_put_be64(f, RAM_SAVE_FLAG_EOS);
2898
2899 expected_time = ram_save_remaining() * TARGET_PAGE_SIZE / bwidth;
2900
2901 return (stage == 2) && (expected_time <= migrate_max_downtime());
2902 }
2903
2904 static int ram_load(QEMUFile *f, void *opaque, int version_id)
2905 {
2906 ram_addr_t addr;
2907 int flags;
2908
2909 if (version_id != 3)
2910 return -EINVAL;
2911
2912 do {
2913 addr = qemu_get_be64(f);
2914
2915 flags = addr & ~TARGET_PAGE_MASK;
2916 addr &= TARGET_PAGE_MASK;
2917
2918 if (flags & RAM_SAVE_FLAG_MEM_SIZE) {
2919 if (addr != last_ram_offset)
2920 return -EINVAL;
2921 }
2922
2923 if (flags & RAM_SAVE_FLAG_COMPRESS) {
2924 uint8_t ch = qemu_get_byte(f);
2925 memset(qemu_get_ram_ptr(addr), ch, TARGET_PAGE_SIZE);
2926 #ifndef _WIN32
2927 if (ch == 0 &&
2928 (!kvm_enabled() || kvm_has_sync_mmu())) {
2929 madvise(qemu_get_ram_ptr(addr), TARGET_PAGE_SIZE, MADV_DONTNEED);
2930 }
2931 #endif
2932 } else if (flags & RAM_SAVE_FLAG_PAGE) {
2933 qemu_get_buffer(f, qemu_get_ram_ptr(addr), TARGET_PAGE_SIZE);
2934 }
2935 if (qemu_file_has_error(f)) {
2936 return -EIO;
2937 }
2938 } while (!(flags & RAM_SAVE_FLAG_EOS));
2939
2940 return 0;
2941 }
2942
2943 void qemu_service_io(void)
2944 {
2945 qemu_notify_event();
2946 }
2947
2948 /***********************************************************/
2949 /* machine registration */
2950
2951 static QEMUMachine *first_machine = NULL;
2952 QEMUMachine *current_machine = NULL;
2953
2954 int qemu_register_machine(QEMUMachine *m)
2955 {
2956 QEMUMachine **pm;
2957 pm = &first_machine;
2958 while (*pm != NULL)
2959 pm = &(*pm)->next;
2960 m->next = NULL;
2961 *pm = m;
2962 return 0;
2963 }
2964
2965 static QEMUMachine *find_machine(const char *name)
2966 {
2967 QEMUMachine *m;
2968
2969 for(m = first_machine; m != NULL; m = m->next) {
2970 if (!strcmp(m->name, name))
2971 return m;
2972 if (m->alias && !strcmp(m->alias, name))
2973 return m;
2974 }
2975 return NULL;
2976 }
2977
2978 static QEMUMachine *find_default_machine(void)
2979 {
2980 QEMUMachine *m;
2981
2982 for(m = first_machine; m != NULL; m = m->next) {
2983 if (m->is_default) {
2984 return m;
2985 }
2986 }
2987 return NULL;
2988 }
2989
2990 /***********************************************************/
2991 /* main execution loop */
2992
2993 static void gui_update(void *opaque)
2994 {
2995 uint64_t interval = GUI_REFRESH_INTERVAL;
2996 DisplayState *ds = opaque;
2997 DisplayChangeListener *dcl = ds->listeners;
2998
2999 qemu_flush_coalesced_mmio_buffer();
3000 dpy_refresh(ds);
3001
3002 while (dcl != NULL) {
3003 if (dcl->gui_timer_interval &&
3004 dcl->gui_timer_interval < interval)
3005 interval = dcl->gui_timer_interval;
3006 dcl = dcl->next;
3007 }
3008 qemu_mod_timer(ds->gui_timer, interval + qemu_get_clock(rt_clock));
3009 }
3010
3011 static void nographic_update(void *opaque)
3012 {
3013 uint64_t interval = GUI_REFRESH_INTERVAL;
3014
3015 qemu_flush_coalesced_mmio_buffer();
3016 qemu_mod_timer(nographic_timer, interval + qemu_get_clock(rt_clock));
3017 }
3018
3019 struct vm_change_state_entry {
3020 VMChangeStateHandler *cb;
3021 void *opaque;
3022 QLIST_ENTRY (vm_change_state_entry) entries;
3023 };
3024
3025 static QLIST_HEAD(vm_change_state_head, vm_change_state_entry) vm_change_state_head;
3026
3027 VMChangeStateEntry *qemu_add_vm_change_state_handler(VMChangeStateHandler *cb,
3028 void *opaque)
3029 {
3030 VMChangeStateEntry *e;
3031
3032 e = qemu_mallocz(sizeof (*e));
3033
3034 e->cb = cb;
3035 e->opaque = opaque;
3036 QLIST_INSERT_HEAD(&vm_change_state_head, e, entries);
3037 return e;
3038 }
3039
3040 void qemu_del_vm_change_state_handler(VMChangeStateEntry *e)
3041 {
3042 QLIST_REMOVE (e, entries);
3043 qemu_free (e);
3044 }
3045
3046 static void vm_state_notify(int running, int reason)
3047 {
3048 VMChangeStateEntry *e;
3049
3050 for (e = vm_change_state_head.lh_first; e; e = e->entries.le_next) {
3051 e->cb(e->opaque, running, reason);
3052 }
3053 }
3054
3055 static void resume_all_vcpus(void);
3056 static void pause_all_vcpus(void);
3057
3058 void vm_start(void)
3059 {
3060 if (!vm_running) {
3061 cpu_enable_ticks();
3062 vm_running = 1;
3063 vm_state_notify(1, 0);
3064 qemu_rearm_alarm_timer(alarm_timer);
3065 resume_all_vcpus();
3066 }
3067 }
3068
3069 /* reset/shutdown handler */
3070
3071 typedef struct QEMUResetEntry {
3072 QTAILQ_ENTRY(QEMUResetEntry) entry;
3073 QEMUResetHandler *func;
3074 void *opaque;
3075 } QEMUResetEntry;
3076
3077 static QTAILQ_HEAD(reset_handlers, QEMUResetEntry) reset_handlers =
3078 QTAILQ_HEAD_INITIALIZER(reset_handlers);
3079 static int reset_requested;
3080 static int shutdown_requested;
3081 static int powerdown_requested;
3082 static int debug_requested;
3083 static int vmstop_requested;
3084
3085 int qemu_shutdown_requested(void)
3086 {
3087 int r = shutdown_requested;
3088 shutdown_requested = 0;
3089 return r;
3090 }
3091
3092 int qemu_reset_requested(void)
3093 {
3094 int r = reset_requested;
3095 reset_requested = 0;
3096 return r;
3097 }
3098
3099 int qemu_powerdown_requested(void)
3100 {
3101 int r = powerdown_requested;
3102 powerdown_requested = 0;
3103 return r;
3104 }
3105
3106 static int qemu_debug_requested(void)
3107 {
3108 int r = debug_requested;
3109 debug_requested = 0;
3110 return r;
3111 }
3112
3113 static int qemu_vmstop_requested(void)
3114 {
3115 int r = vmstop_requested;
3116 vmstop_requested = 0;
3117 return r;
3118 }
3119
3120 static void do_vm_stop(int reason)
3121 {
3122 if (vm_running) {
3123 cpu_disable_ticks();
3124 vm_running = 0;
3125 pause_all_vcpus();
3126 vm_state_notify(0, reason);
3127 }
3128 }
3129
3130 void qemu_register_reset(QEMUResetHandler *func, void *opaque)
3131 {
3132 QEMUResetEntry *re = qemu_mallocz(sizeof(QEMUResetEntry));
3133
3134 re->func = func;
3135 re->opaque = opaque;
3136 QTAILQ_INSERT_TAIL(&reset_handlers, re, entry);
3137 }
3138
3139 void qemu_unregister_reset(QEMUResetHandler *func, void *opaque)
3140 {
3141 QEMUResetEntry *re;
3142
3143 QTAILQ_FOREACH(re, &reset_handlers, entry) {
3144 if (re->func == func && re->opaque == opaque) {
3145 QTAILQ_REMOVE(&reset_handlers, re, entry);
3146 qemu_free(re);
3147 return;
3148 }
3149 }
3150 }
3151
3152 void qemu_system_reset(void)
3153 {
3154 QEMUResetEntry *re, *nre;
3155
3156 /* reset all devices */
3157 QTAILQ_FOREACH_SAFE(re, &reset_handlers, entry, nre) {
3158 re->func(re->opaque);
3159 }
3160 }
3161
3162 void qemu_system_reset_request(void)
3163 {
3164 if (no_reboot) {
3165 shutdown_requested = 1;
3166 } else {
3167 reset_requested = 1;
3168 }
3169 qemu_notify_event();
3170 }
3171
3172 void qemu_system_shutdown_request(void)
3173 {
3174 shutdown_requested = 1;
3175 qemu_notify_event();
3176 }
3177
3178 void qemu_system_powerdown_request(void)
3179 {
3180 powerdown_requested = 1;
3181 qemu_notify_event();
3182 }
3183
3184 #ifdef CONFIG_IOTHREAD
3185 static void qemu_system_vmstop_request(int reason)
3186 {
3187 vmstop_requested = reason;
3188 qemu_notify_event();
3189 }
3190 #endif
3191
3192 #ifndef _WIN32
3193 static int io_thread_fd = -1;
3194
3195 static void qemu_event_increment(void)
3196 {
3197 static const char byte = 0;
3198 ssize_t ret;
3199
3200 if (io_thread_fd == -1)
3201 return;
3202
3203 ret = write(io_thread_fd, &byte, sizeof(byte));
3204 if (ret < 0 && (errno != EINTR && errno != EAGAIN)) {
3205 fprintf(stderr, "qemu_event_increment: write() filed: %s\n",
3206 strerror(errno));
3207 exit (1);
3208 }
3209 }
3210
3211 static void qemu_event_read(void *opaque)
3212 {
3213 int fd = (unsigned long)opaque;
3214 ssize_t len;
3215
3216 /* Drain the notify pipe */
3217 do {
3218 char buffer[512];
3219 len = read(fd, buffer, sizeof(buffer));
3220 } while ((len == -1 && errno == EINTR) || len > 0);
3221 }
3222
3223 static int qemu_event_init(void)
3224 {
3225 int err;
3226 int fds[2];
3227
3228 err = qemu_pipe(fds);
3229 if (err == -1)
3230 return -errno;
3231
3232 err = fcntl_setfl(fds[0], O_NONBLOCK);
3233 if (err < 0)
3234 goto fail;
3235
3236 err = fcntl_setfl(fds[1], O_NONBLOCK);
3237 if (err < 0)
3238 goto fail;
3239
3240 qemu_set_fd_handler2(fds[0], NULL, qemu_event_read, NULL,
3241 (void *)(unsigned long)fds[0]);
3242
3243 io_thread_fd = fds[1];
3244 return 0;
3245
3246 fail:
3247 close(fds[0]);
3248 close(fds[1]);
3249 return err;
3250 }
3251 #else
3252 HANDLE qemu_event_handle;
3253
3254 static void dummy_event_handler(void *opaque)
3255 {
3256 }
3257
3258 static int qemu_event_init(void)
3259 {
3260 qemu_event_handle = CreateEvent(NULL, FALSE, FALSE, NULL);
3261 if (!qemu_event_handle) {
3262 fprintf(stderr, "Failed CreateEvent: %ld\n", GetLastError());
3263 return -1;
3264 }
3265 qemu_add_wait_object(qemu_event_handle, dummy_event_handler, NULL);
3266 return 0;
3267 }
3268
3269 static void qemu_event_increment(void)
3270 {
3271 if (!SetEvent(qemu_event_handle)) {
3272 fprintf(stderr, "qemu_event_increment: SetEvent failed: %ld\n",
3273 GetLastError());
3274 exit (1);
3275 }
3276 }
3277 #endif
3278
3279 static int cpu_can_run(CPUState *env)
3280 {
3281 if (env->stop)
3282 return 0;
3283 if (env->stopped)
3284 return 0;
3285 if (!vm_running)
3286 return 0;
3287 return 1;
3288 }
3289
3290 #ifndef CONFIG_IOTHREAD
3291 static int qemu_init_main_loop(void)
3292 {
3293 return qemu_event_init();
3294 }
3295
3296 void qemu_init_vcpu(void *_env)
3297 {
3298 CPUState *env = _env;
3299
3300 env->nr_cores = smp_cores;
3301 env->nr_threads = smp_threads;
3302 if (kvm_enabled())
3303 kvm_init_vcpu(env);
3304 return;
3305 }
3306
3307 int qemu_cpu_self(void *env)
3308 {
3309 return 1;
3310 }
3311
3312 static void resume_all_vcpus(void)
3313 {
3314 }
3315
3316 static void pause_all_vcpus(void)
3317 {
3318 }
3319
3320 void qemu_cpu_kick(void *env)
3321 {
3322 return;
3323 }
3324
3325 void qemu_notify_event(void)
3326 {
3327 CPUState *env = cpu_single_env;
3328
3329 if (env) {
3330 cpu_exit(env);
3331 }
3332 }
3333
3334 void qemu_mutex_lock_iothread(void) {}
3335 void qemu_mutex_unlock_iothread(void) {}
3336
3337 void vm_stop(int reason)
3338 {
3339 do_vm_stop(reason);
3340 }
3341
3342 #else /* CONFIG_IOTHREAD */
3343
3344 #include "qemu-thread.h"
3345
3346 QemuMutex qemu_global_mutex;
3347 static QemuMutex qemu_fair_mutex;
3348
3349 static QemuThread io_thread;
3350
3351 static QemuThread *tcg_cpu_thread;
3352 static QemuCond *tcg_halt_cond;
3353
3354 static int qemu_system_ready;
3355 /* cpu creation */
3356 static QemuCond qemu_cpu_cond;
3357 /* system init */
3358 static QemuCond qemu_system_cond;
3359 static QemuCond qemu_pause_cond;
3360
3361 static void block_io_signals(void);
3362 static void unblock_io_signals(void);
3363 static int tcg_has_work(void);
3364
3365 static int qemu_init_main_loop(void)
3366 {
3367 int ret;
3368
3369 ret = qemu_event_init();
3370 if (ret)
3371 return ret;
3372
3373 qemu_cond_init(&qemu_pause_cond);
3374 qemu_mutex_init(&qemu_fair_mutex);
3375 qemu_mutex_init(&qemu_global_mutex);
3376 qemu_mutex_lock(&qemu_global_mutex);
3377
3378 unblock_io_signals();
3379 qemu_thread_self(&io_thread);
3380
3381 return 0;
3382 }
3383
3384 static void qemu_wait_io_event(CPUState *env)
3385 {
3386 while (!tcg_has_work())
3387 qemu_cond_timedwait(env->halt_cond, &qemu_global_mutex, 1000);
3388
3389 qemu_mutex_unlock(&qemu_global_mutex);
3390
3391 /*
3392 * Users of qemu_global_mutex can be starved, having no chance
3393 * to acquire it since this path will get to it first.
3394 * So use another lock to provide fairness.
3395 */
3396 qemu_mutex_lock(&qemu_fair_mutex);
3397 qemu_mutex_unlock(&qemu_fair_mutex);
3398
3399 qemu_mutex_lock(&qemu_global_mutex);
3400 if (env->stop) {
3401 env->stop = 0;
3402 env->stopped = 1;
3403 qemu_cond_signal(&qemu_pause_cond);
3404 }
3405 }
3406
3407 static int qemu_cpu_exec(CPUState *env);
3408
3409 static void *kvm_cpu_thread_fn(void *arg)
3410 {
3411 CPUState *env = arg;
3412
3413 block_io_signals();
3414 qemu_thread_self(env->thread);
3415 if (kvm_enabled())
3416 kvm_init_vcpu(env);
3417
3418 /* signal CPU creation */
3419 qemu_mutex_lock(&qemu_global_mutex);
3420 env->created = 1;
3421 qemu_cond_signal(&qemu_cpu_cond);
3422
3423 /* and wait for machine initialization */
3424 while (!qemu_system_ready)
3425 qemu_cond_timedwait(&qemu_system_cond, &qemu_global_mutex, 100);
3426
3427 while (1) {
3428 if (cpu_can_run(env))
3429 qemu_cpu_exec(env);
3430 qemu_wait_io_event(env);
3431 }
3432
3433 return NULL;
3434 }
3435
3436 static void tcg_cpu_exec(void);
3437
3438 static void *tcg_cpu_thread_fn(void *arg)
3439 {
3440 CPUState *env = arg;
3441
3442 block_io_signals();
3443 qemu_thread_self(env->thread);
3444
3445 /* signal CPU creation */
3446 qemu_mutex_lock(&qemu_global_mutex);
3447 for (env = first_cpu; env != NULL; env = env->next_cpu)
3448 env->created = 1;
3449 qemu_cond_signal(&qemu_cpu_cond);
3450
3451 /* and wait for machine initialization */
3452 while (!qemu_system_ready)
3453 qemu_cond_timedwait(&qemu_system_cond, &qemu_global_mutex, 100);
3454
3455 while (1) {
3456 tcg_cpu_exec();
3457 qemu_wait_io_event(cur_cpu);
3458 }
3459
3460 return NULL;
3461 }
3462
3463 void qemu_cpu_kick(void *_env)
3464 {
3465 CPUState *env = _env;
3466 qemu_cond_broadcast(env->halt_cond);
3467 if (kvm_enabled())
3468 qemu_thread_signal(env->thread, SIGUSR1);
3469 }
3470
3471 int qemu_cpu_self(void *_env)
3472 {
3473 CPUState *env = _env;
3474 QemuThread this;
3475
3476 qemu_thread_self(&this);
3477
3478 return qemu_thread_equal(&this, env->thread);
3479 }
3480
3481 static void cpu_signal(int sig)
3482 {
3483 if (cpu_single_env)
3484 cpu_exit(cpu_single_env);
3485 }
3486
3487 static void block_io_signals(void)
3488 {
3489 sigset_t set;
3490 struct sigaction sigact;
3491
3492 sigemptyset(&set);
3493 sigaddset(&set, SIGUSR2);
3494 sigaddset(&set, SIGIO);
3495 sigaddset(&set, SIGALRM);
3496 pthread_sigmask(SIG_BLOCK, &set, NULL);
3497
3498 sigemptyset(&set);
3499 sigaddset(&set, SIGUSR1);
3500 pthread_sigmask(SIG_UNBLOCK, &set, NULL);
3501
3502 memset(&sigact, 0, sizeof(sigact));
3503 sigact.sa_handler = cpu_signal;
3504 sigaction(SIGUSR1, &sigact, NULL);
3505 }
3506
3507 static void unblock_io_signals(void)
3508 {
3509 sigset_t set;
3510
3511 sigemptyset(&set);
3512 sigaddset(&set, SIGUSR2);
3513 sigaddset(&set, SIGIO);
3514 sigaddset(&set, SIGALRM);
3515 pthread_sigmask(SIG_UNBLOCK, &set, NULL);
3516
3517 sigemptyset(&set);
3518 sigaddset(&set, SIGUSR1);
3519 pthread_sigmask(SIG_BLOCK, &set, NULL);
3520 }
3521
3522 static void qemu_signal_lock(unsigned int msecs)
3523 {
3524 qemu_mutex_lock(&qemu_fair_mutex);
3525
3526 while (qemu_mutex_trylock(&qemu_global_mutex)) {
3527 qemu_thread_signal(tcg_cpu_thread, SIGUSR1);
3528 if (!qemu_mutex_timedlock(&qemu_global_mutex, msecs))
3529 break;
3530 }
3531 qemu_mutex_unlock(&qemu_fair_mutex);
3532 }
3533
3534 void qemu_mutex_lock_iothread(void)
3535 {
3536 if (kvm_enabled()) {
3537 qemu_mutex_lock(&qemu_fair_mutex);
3538 qemu_mutex_lock(&qemu_global_mutex);
3539 qemu_mutex_unlock(&qemu_fair_mutex);
3540 } else
3541 qemu_signal_lock(100);
3542 }
3543
3544 void qemu_mutex_unlock_iothread(void)
3545 {
3546 qemu_mutex_unlock(&qemu_global_mutex);
3547 }
3548
3549 static int all_vcpus_paused(void)
3550 {
3551 CPUState *penv = first_cpu;
3552
3553 while (penv) {
3554 if (!penv->stopped)
3555 return 0;
3556 penv = (CPUState *)penv->next_cpu;
3557 }
3558
3559 return 1;
3560 }
3561
3562 static void pause_all_vcpus(void)
3563 {
3564 CPUState *penv = first_cpu;
3565
3566 while (penv) {
3567 penv->stop = 1;
3568 qemu_thread_signal(penv->thread, SIGUSR1);
3569 qemu_cpu_kick(penv);
3570 penv = (CPUState *)penv->next_cpu;
3571 }
3572
3573 while (!all_vcpus_paused()) {
3574 qemu_cond_timedwait(&qemu_pause_cond, &qemu_global_mutex, 100);
3575 penv = first_cpu;
3576 while (penv) {
3577 qemu_thread_signal(penv->thread, SIGUSR1);
3578 penv = (CPUState *)penv->next_cpu;
3579 }
3580 }
3581 }
3582
3583 static void resume_all_vcpus(void)
3584 {
3585 CPUState *penv = first_cpu;
3586
3587 while (penv) {
3588 penv->stop = 0;
3589 penv->stopped = 0;
3590 qemu_thread_signal(penv->thread, SIGUSR1);
3591 qemu_cpu_kick(penv);
3592 penv = (CPUState *)penv->next_cpu;
3593 }
3594 }
3595
3596 static void tcg_init_vcpu(void *_env)
3597 {
3598 CPUState *env = _env;
3599 /* share a single thread for all cpus with TCG */
3600 if (!tcg_cpu_thread) {
3601 env->thread = qemu_mallocz(sizeof(QemuThread));
3602 env->halt_cond = qemu_mallocz(sizeof(QemuCond));
3603 qemu_cond_init(env->halt_cond);
3604 qemu_thread_create(env->thread, tcg_cpu_thread_fn, env);
3605 while (env->created == 0)
3606 qemu_cond_timedwait(&qemu_cpu_cond, &qemu_global_mutex, 100);
3607 tcg_cpu_thread = env->thread;
3608 tcg_halt_cond = env->halt_cond;
3609 } else {
3610 env->thread = tcg_cpu_thread;
3611 env->halt_cond = tcg_halt_cond;
3612 }
3613 }
3614
3615 static void kvm_start_vcpu(CPUState *env)
3616 {
3617 env->thread = qemu_mallocz(sizeof(QemuThread));
3618 env->halt_cond = qemu_mallocz(sizeof(QemuCond));
3619 qemu_cond_init(env->halt_cond);
3620 qemu_thread_create(env->thread, kvm_cpu_thread_fn, env);
3621 while (env->created == 0)
3622 qemu_cond_timedwait(&qemu_cpu_cond, &qemu_global_mutex, 100);
3623 }
3624
3625 void qemu_init_vcpu(void *_env)
3626 {
3627 CPUState *env = _env;
3628
3629 env->nr_cores = smp_cores;
3630 env->nr_threads = smp_threads;
3631 if (kvm_enabled())
3632 kvm_start_vcpu(env);
3633 else
3634 tcg_init_vcpu(env);
3635 }
3636
3637 void qemu_notify_event(void)
3638 {
3639 qemu_event_increment();
3640 }
3641
3642 void vm_stop(int reason)
3643 {
3644 QemuThread me;
3645 qemu_thread_self(&me);
3646
3647 if (!qemu_thread_equal(&me, &io_thread)) {
3648 qemu_system_vmstop_request(reason);
3649 /*
3650 * FIXME: should not return to device code in case
3651 * vm_stop() has been requested.
3652 */
3653 if (cpu_single_env) {
3654 cpu_exit(cpu_single_env);
3655 cpu_single_env->stop = 1;
3656 }
3657 return;
3658 }
3659 do_vm_stop(reason);
3660 }
3661
3662 #endif
3663
3664
3665 #ifdef _WIN32
3666 static void host_main_loop_wait(int *timeout)
3667 {
3668 int ret, ret2, i;
3669 PollingEntry *pe;
3670
3671
3672 /* XXX: need to suppress polling by better using win32 events */
3673 ret = 0;
3674 for(pe = first_polling_entry; pe != NULL; pe = pe->next) {
3675 ret |= pe->func(pe->opaque);
3676 }
3677 if (ret == 0) {
3678 int err;
3679 WaitObjects *w = &wait_objects;
3680
3681 ret = WaitForMultipleObjects(w->num, w->events, FALSE, *timeout);
3682 if (WAIT_OBJECT_0 + 0 <= ret && ret <= WAIT_OBJECT_0 + w->num - 1) {
3683 if (w->func[ret - WAIT_OBJECT_0])
3684 w->func[ret - WAIT_OBJECT_0](w->opaque[ret - WAIT_OBJECT_0]);
3685
3686 /* Check for additional signaled events */
3687 for(i = (ret - WAIT_OBJECT_0 + 1); i < w->num; i++) {
3688
3689 /* Check if event is signaled */
3690 ret2 = WaitForSingleObject(w->events[i], 0);
3691 if(ret2 == WAIT_OBJECT_0) {
3692 if (w->func[i])
3693 w->func[i](w->opaque[i]);
3694 } else if (ret2 == WAIT_TIMEOUT) {
3695 } else {
3696 err = GetLastError();
3697 fprintf(stderr, "WaitForSingleObject error %d %d\n", i, err);
3698 }
3699 }
3700 } else if (ret == WAIT_TIMEOUT) {
3701 } else {
3702 err = GetLastError();
3703 fprintf(stderr, "WaitForMultipleObjects error %d %d\n", ret, err);
3704 }
3705 }
3706
3707 *timeout = 0;
3708 }
3709 #else
3710 static void host_main_loop_wait(int *timeout)
3711 {
3712 }
3713 #endif
3714
3715 void main_loop_wait(int timeout)
3716 {
3717 IOHandlerRecord *ioh;
3718 fd_set rfds, wfds, xfds;
3719 int ret, nfds;
3720 struct timeval tv;
3721
3722 qemu_bh_update_timeout(&timeout);
3723
3724 host_main_loop_wait(&timeout);
3725
3726 /* poll any events */
3727 /* XXX: separate device handlers from system ones */
3728 nfds = -1;
3729 FD_ZERO(&rfds);
3730 FD_ZERO(&wfds);
3731 FD_ZERO(&xfds);
3732 for(ioh = first_io_handler; ioh != NULL; ioh = ioh->next) {
3733 if (ioh->deleted)
3734 continue;
3735 if (ioh->fd_read &&
3736 (!ioh->fd_read_poll ||
3737 ioh->fd_read_poll(ioh->opaque) != 0)) {
3738 FD_SET(ioh->fd, &rfds);
3739 if (ioh->fd > nfds)
3740 nfds = ioh->fd;
3741 }
3742 if (ioh->fd_write) {
3743 FD_SET(ioh->fd, &wfds);
3744 if (ioh->fd > nfds)
3745 nfds = ioh->fd;
3746 }
3747 }
3748
3749 tv.tv_sec = timeout / 1000;
3750 tv.tv_usec = (timeout % 1000) * 1000;
3751
3752 slirp_select_fill(&nfds, &rfds, &wfds, &xfds);
3753
3754 qemu_mutex_unlock_iothread();
3755 ret = select(nfds + 1, &rfds, &wfds, &xfds, &tv);
3756 qemu_mutex_lock_iothread();
3757 if (ret > 0) {
3758 IOHandlerRecord **pioh;
3759
3760 for(ioh = first_io_handler; ioh != NULL; ioh = ioh->next) {
3761 if (!ioh->deleted && ioh->fd_read && FD_ISSET(ioh->fd, &rfds)) {
3762 ioh->fd_read(ioh->opaque);
3763 }
3764 if (!ioh->deleted && ioh->fd_write && FD_ISSET(ioh->fd, &wfds)) {
3765 ioh->fd_write(ioh->opaque);
3766 }
3767 }
3768
3769 /* remove deleted IO handlers */
3770 pioh = &first_io_handler;
3771 while (*pioh) {
3772 ioh = *pioh;
3773 if (ioh->deleted) {
3774 *pioh = ioh->next;
3775 qemu_free(ioh);
3776 } else
3777 pioh = &ioh->next;
3778 }
3779 }
3780
3781 slirp_select_poll(&rfds, &wfds, &xfds, (ret < 0));
3782
3783 /* rearm timer, if not periodic */
3784 if (alarm_timer->flags & ALARM_FLAG_EXPIRED) {
3785 alarm_timer->flags &= ~ALARM_FLAG_EXPIRED;
3786 qemu_rearm_alarm_timer(alarm_timer);
3787 }
3788
3789 /* vm time timers */
3790 if (vm_running) {
3791 if (!cur_cpu || likely(!(cur_cpu->singlestep_enabled & SSTEP_NOTIMER)))
3792 qemu_run_timers(&active_timers[QEMU_CLOCK_VIRTUAL],
3793 qemu_get_clock(vm_clock));
3794 }
3795
3796 /* real time timers */
3797 qemu_run_timers(&active_timers[QEMU_CLOCK_REALTIME],
3798 qemu_get_clock(rt_clock));
3799
3800 qemu_run_timers(&active_timers[QEMU_CLOCK_HOST],
3801 qemu_get_clock(host_clock));
3802
3803 /* Check bottom-halves last in case any of the earlier events triggered
3804 them. */
3805 qemu_bh_poll();
3806
3807 }
3808
3809 static int qemu_cpu_exec(CPUState *env)
3810 {
3811 int ret;
3812 #ifdef CONFIG_PROFILER
3813 int64_t ti;
3814 #endif
3815
3816 #ifdef CONFIG_PROFILER
3817 ti = profile_getclock();
3818 #endif
3819 if (use_icount) {
3820 int64_t count;
3821 int decr;
3822 qemu_icount -= (env->icount_decr.u16.low + env->icount_extra);
3823 env->icount_decr.u16.low = 0;
3824 env->icount_extra = 0;
3825 count = qemu_next_deadline();
3826 count = (count + (1 << icount_time_shift) - 1)
3827 >> icount_time_shift;
3828 qemu_icount += count;
3829 decr = (count > 0xffff) ? 0xffff : count;
3830 count -= decr;
3831 env->icount_decr.u16.low = decr;
3832 env->icount_extra = count;
3833 }
3834 ret = cpu_exec(env);
3835 #ifdef CONFIG_PROFILER
3836 qemu_time += profile_getclock() - ti;
3837 #endif
3838 if (use_icount) {
3839 /* Fold pending instructions back into the
3840 instruction counter, and clear the interrupt flag. */
3841 qemu_icount -= (env->icount_decr.u16.low
3842 + env->icount_extra);
3843 env->icount_decr.u32 = 0;
3844 env->icount_extra = 0;
3845 }
3846 return ret;
3847 }
3848
3849 static void tcg_cpu_exec(void)
3850 {
3851 int ret = 0;
3852
3853 if (next_cpu == NULL)
3854 next_cpu = first_cpu;
3855 for (; next_cpu != NULL; next_cpu = next_cpu->next_cpu) {
3856 CPUState *env = cur_cpu = next_cpu;
3857
3858 if (!vm_running)
3859 break;
3860 if (timer_alarm_pending) {
3861 timer_alarm_pending = 0;
3862 break;
3863 }
3864 if (cpu_can_run(env))
3865 ret = qemu_cpu_exec(env);
3866 if (ret == EXCP_DEBUG) {
3867 gdb_set_stop_cpu(env);
3868 debug_requested = 1;
3869 break;
3870 }
3871 }
3872 }
3873
3874 static int cpu_has_work(CPUState *env)
3875 {
3876 if (env->stop)
3877 return 1;
3878 if (env->stopped)
3879 return 0;
3880 if (!env->halted)
3881 return 1;
3882 if (qemu_cpu_has_work(env))
3883 return 1;
3884 return 0;
3885 }
3886
3887 static int tcg_has_work(void)
3888 {
3889 CPUState *env;
3890
3891 for (env = first_cpu; env != NULL; env = env->next_cpu)
3892 if (cpu_has_work(env))
3893 return 1;
3894 return 0;
3895 }
3896
3897 static int qemu_calculate_timeout(void)
3898 {
3899 #ifndef CONFIG_IOTHREAD
3900 int timeout;
3901
3902 if (!vm_running)
3903 timeout = 5000;
3904 else if (tcg_has_work())
3905 timeout = 0;
3906 else if (!use_icount)
3907 timeout = 5000;
3908 else {
3909 /* XXX: use timeout computed from timers */
3910 int64_t add;
3911 int64_t delta;
3912 /* Advance virtual time to the next event. */
3913 if (use_icount == 1) {
3914 /* When not using an adaptive execution frequency
3915 we tend to get badly out of sync with real time,
3916 so just delay for a reasonable amount of time. */
3917 delta = 0;
3918 } else {
3919 delta = cpu_get_icount() - cpu_get_clock();
3920 }
3921 if (delta > 0) {
3922 /* If virtual time is ahead of real time then just
3923 wait for IO. */
3924 timeout = (delta / 1000000) + 1;
3925 } else {
3926 /* Wait for either IO to occur or the next
3927 timer event. */
3928 add = qemu_next_deadline();
3929 /* We advance the timer before checking for IO.
3930 Limit the amount we advance so that early IO
3931 activity won't get the guest too far ahead. */
3932 if (add > 10000000)
3933 add = 10000000;
3934 delta += add;
3935 add = (add + (1 << icount_time_shift) - 1)
3936 >> icount_time_shift;
3937 qemu_icount += add;
3938 timeout = delta / 1000000;
3939 if (timeout < 0)
3940 timeout = 0;
3941 }
3942 }
3943
3944 return timeout;
3945 #else /* CONFIG_IOTHREAD */
3946 return 1000;
3947 #endif
3948 }
3949
3950 static int vm_can_run(void)
3951 {
3952 if (powerdown_requested)
3953 return 0;
3954 if (reset_requested)
3955 return 0;
3956 if (shutdown_requested)
3957 return 0;
3958 if (debug_requested)
3959 return 0;
3960 return 1;
3961 }
3962
3963 qemu_irq qemu_system_powerdown;
3964
3965 static void main_loop(void)
3966 {
3967 int r;
3968
3969 #ifdef CONFIG_IOTHREAD
3970 qemu_system_ready = 1;
3971 qemu_cond_broadcast(&qemu_system_cond);
3972 #endif
3973
3974 for (;;) {
3975 do {
3976 #ifdef CONFIG_PROFILER
3977 int64_t ti;
3978 #endif
3979 #ifndef CONFIG_IOTHREAD
3980 tcg_cpu_exec();
3981 #endif
3982 #ifdef CONFIG_PROFILER
3983 ti = profile_getclock();
3984 #endif
3985 main_loop_wait(qemu_calculate_timeout());
3986 #ifdef CONFIG_PROFILER
3987 dev_time += profile_getclock() - ti;
3988 #endif
3989 } while (vm_can_run());
3990
3991 if (qemu_debug_requested()) {
3992 monitor_protocol_event(QEVENT_DEBUG, NULL);
3993 vm_stop(EXCP_DEBUG);
3994 }
3995 if (qemu_shutdown_requested()) {
3996 monitor_protocol_event(QEVENT_SHUTDOWN, NULL);
3997 if (no_shutdown) {
3998 vm_stop(0);
3999 no_shutdown = 0;
4000 } else
4001 break;
4002 }
4003 if (qemu_reset_requested()) {
4004 monitor_protocol_event(QEVENT_RESET, NULL);
4005 pause_all_vcpus();
4006 qemu_system_reset();
4007 resume_all_vcpus();
4008 }
4009 if (qemu_powerdown_requested()) {
4010 monitor_protocol_event(QEVENT_POWERDOWN, NULL);
4011 qemu_irq_raise(qemu_system_powerdown);
4012 }
4013 if ((r = qemu_vmstop_requested())) {
4014 monitor_protocol_event(QEVENT_STOP, NULL);
4015 vm_stop(r);
4016 }
4017 }
4018 pause_all_vcpus();
4019 }
4020
4021 static void version(void)
4022 {
4023 printf("QEMU PC emulator version " QEMU_VERSION QEMU_PKGVERSION ", Copyright (c) 2003-2008 Fabrice Bellard\n");
4024 }
4025
4026 static void help(int exitcode)
4027 {
4028 const char *options_help =
4029 #define DEF(option, opt_arg, opt_enum, opt_help) \
4030 opt_help
4031 #define DEFHEADING(text) stringify(text) "\n"
4032 #include "qemu-options.h"
4033 #undef DEF
4034 #undef DEFHEADING
4035 #undef GEN_DOCS
4036 ;
4037 version();
4038 printf("usage: %s [options] [disk_image]\n"
4039 "\n"
4040 "'disk_image' is a raw hard image image for IDE hard disk 0\n"
4041 "\n"
4042 "%s\n"
4043 "During emulation, the following keys are useful:\n"
4044 "ctrl-alt-f toggle full screen\n"
4045 "ctrl-alt-n switch to virtual console 'n'\n"
4046 "ctrl-alt toggle mouse and keyboard grab\n"
4047 "\n"
4048 "When using -nographic, press 'ctrl-a h' to get some help.\n",
4049 "qemu",
4050 options_help);
4051 exit(exitcode);
4052 }
4053
4054 #define HAS_ARG 0x0001
4055
4056 enum {
4057 #define DEF(option, opt_arg, opt_enum, opt_help) \
4058 opt_enum,
4059 #define DEFHEADING(text)
4060 #include "qemu-options.h"
4061 #undef DEF
4062 #undef DEFHEADING
4063 #undef GEN_DOCS
4064 };
4065
4066 typedef struct QEMUOption {
4067 const char *name;
4068 int flags;
4069 int index;
4070 } QEMUOption;
4071
4072 static const QEMUOption qemu_options[] = {
4073 { "h", 0, QEMU_OPTION_h },
4074 #define DEF(option, opt_arg, opt_enum, opt_help) \
4075 { option, opt_arg, opt_enum },
4076 #define DEFHEADING(text)
4077 #include "qemu-options.h"
4078 #undef DEF
4079 #undef DEFHEADING
4080 #undef GEN_DOCS
4081 { NULL },
4082 };
4083
4084 #ifdef HAS_AUDIO
4085 struct soundhw soundhw[] = {
4086 #ifdef HAS_AUDIO_CHOICE
4087 #if defined(TARGET_I386) || defined(TARGET_MIPS)
4088 {
4089 "pcspk",
4090 "PC speaker",
4091 0,
4092 1,
4093 { .init_isa = pcspk_audio_init }
4094 },
4095 #endif
4096
4097 #ifdef CONFIG_SB16
4098 {
4099 "sb16",
4100 "Creative Sound Blaster 16",
4101 0,
4102 1,
4103 { .init_isa = SB16_init }
4104 },
4105 #endif
4106
4107 #ifdef CONFIG_CS4231A
4108 {
4109 "cs4231a",
4110 "CS4231A",
4111 0,
4112 1,
4113 { .init_isa = cs4231a_init }
4114 },
4115 #endif
4116
4117 #ifdef CONFIG_ADLIB
4118 {
4119 "adlib",
4120 #ifdef HAS_YMF262
4121 "Yamaha YMF262 (OPL3)",
4122 #else
4123 "Yamaha YM3812 (OPL2)",
4124 #endif
4125 0,
4126 1,
4127 { .init_isa = Adlib_init }
4128 },
4129 #endif
4130
4131 #ifdef CONFIG_GUS
4132 {
4133 "gus",
4134 "Gravis Ultrasound GF1",
4135 0,
4136 1,
4137 { .init_isa = GUS_init }
4138 },
4139 #endif
4140
4141 #ifdef CONFIG_AC97
4142 {
4143 "ac97",
4144 "Intel 82801AA AC97 Audio",
4145 0,
4146 0,
4147 { .init_pci = ac97_init }
4148 },
4149 #endif
4150
4151 #ifdef CONFIG_ES1370
4152 {
4153 "es1370",
4154 "ENSONIQ AudioPCI ES1370",
4155 0,
4156 0,
4157 { .init_pci = es1370_init }
4158 },
4159 #endif
4160
4161 #endif /* HAS_AUDIO_CHOICE */
4162
4163 { NULL, NULL, 0, 0, { NULL } }
4164 };
4165
4166 static void select_soundhw (const char *optarg)
4167 {
4168 struct soundhw *c;
4169
4170 if (*optarg == '?') {
4171 show_valid_cards:
4172
4173 printf ("Valid sound card names (comma separated):\n");
4174 for (c = soundhw; c->name; ++c) {
4175 printf ("%-11s %s\n", c->name, c->descr);
4176 }
4177 printf ("\n-soundhw all will enable all of the above\n");
4178 exit (*optarg != '?');
4179 }
4180 else {
4181 size_t l;
4182 const char *p;
4183 char *e;
4184 int bad_card = 0;
4185
4186 if (!strcmp (optarg, "all")) {
4187 for (c = soundhw; c->name; ++c) {
4188 c->enabled = 1;
4189 }
4190 return;
4191 }
4192
4193 p = optarg;
4194 while (*p) {
4195 e = strchr (p, ',');
4196 l = !e ? strlen (p) : (size_t) (e - p);
4197
4198 for (c = soundhw; c->name; ++c) {
4199 if (!strncmp (c->name, p, l) && !c->name[l]) {
4200 c->enabled = 1;
4201 break;
4202 }
4203 }
4204
4205 if (!c->name) {
4206 if (l > 80) {
4207 fprintf (stderr,
4208 "Unknown sound card name (too big to show)\n");
4209 }
4210 else {
4211 fprintf (stderr, "Unknown sound card name `%.*s'\n",
4212 (int) l, p);
4213 }
4214 bad_card = 1;
4215 }
4216 p += l + (e != NULL);
4217 }
4218
4219 if (bad_card)
4220 goto show_valid_cards;
4221 }
4222 }
4223 #endif
4224
4225 static void select_vgahw (const char *p)
4226 {
4227 const char *opts;
4228
4229 default_vga = 0;
4230 vga_interface_type = VGA_NONE;
4231 if (strstart(p, "std", &opts)) {
4232 vga_interface_type = VGA_STD;
4233 } else if (strstart(p, "cirrus", &opts)) {
4234 vga_interface_type = VGA_CIRRUS;
4235 } else if (strstart(p, "vmware", &opts)) {
4236 vga_interface_type = VGA_VMWARE;
4237 } else if (strstart(p, "xenfb", &opts)) {
4238 vga_interface_type = VGA_XENFB;
4239 } else if (!strstart(p, "none", &opts)) {
4240 invalid_vga:
4241 fprintf(stderr, "Unknown vga type: %s\n", p);
4242 exit(1);
4243 }
4244 while (*opts) {
4245 const char *nextopt;
4246
4247 if (strstart(opts, ",retrace=", &nextopt)) {
4248 opts = nextopt;
4249 if (strstart(opts, "dumb", &nextopt))
4250 vga_retrace_method = VGA_RETRACE_DUMB;
4251 else if (strstart(opts, "precise", &nextopt))
4252 vga_retrace_method = VGA_RETRACE_PRECISE;
4253 else goto invalid_vga;
4254 } else goto invalid_vga;
4255 opts = nextopt;
4256 }
4257 }
4258
4259 #ifdef TARGET_I386
4260 static int balloon_parse(const char *arg)
4261 {
4262 QemuOpts *opts;
4263
4264 if (strcmp(arg, "none") == 0) {
4265 return 0;
4266 }
4267
4268 if (!strncmp(arg, "virtio", 6)) {
4269 if (arg[6] == ',') {
4270 /* have params -> parse them */
4271 opts = qemu_opts_parse(&qemu_device_opts, arg+7, NULL);
4272 if (!opts)
4273 return -1;
4274 } else {
4275 /* create empty opts */
4276 opts = qemu_opts_create(&qemu_device_opts, NULL, 0);
4277 }
4278 qemu_opt_set(opts, "driver", "virtio-balloon-pci");
4279 return 0;
4280 }
4281
4282 return -1;
4283 }
4284 #endif
4285
4286 #ifdef _WIN32
4287 static BOOL WINAPI qemu_ctrl_handler(DWORD type)
4288 {
4289 exit(STATUS_CONTROL_C_EXIT);
4290 return TRUE;
4291 }
4292 #endif
4293
4294 int qemu_uuid_parse(const char *str, uint8_t *uuid)
4295 {
4296 int ret;
4297
4298 if(strlen(str) != 36)
4299 return -1;
4300
4301 ret = sscanf(str, UUID_FMT, &uuid[0], &uuid[1], &uuid[2], &uuid[3],
4302 &uuid[4], &uuid[5], &uuid[6], &uuid[7], &uuid[8], &uuid[9],
4303 &uuid[10], &uuid[11], &uuid[12], &uuid[13], &uuid[14], &uuid[15]);
4304
4305 if(ret != 16)
4306 return -1;
4307
4308 #ifdef TARGET_I386
4309 smbios_add_field(1, offsetof(struct smbios_type_1, uuid), 16, uuid);
4310 #endif
4311
4312 return 0;
4313 }
4314
4315 #ifndef _WIN32
4316
4317 static void termsig_handler(int signal)
4318 {
4319 qemu_system_shutdown_request();
4320 }
4321
4322 static void sigchld_handler(int signal)
4323 {
4324 waitpid(-1, NULL, WNOHANG);
4325 }
4326
4327 static void sighandler_setup(void)
4328 {
4329 struct sigaction act;
4330
4331 memset(&act, 0, sizeof(act));
4332 act.sa_handler = termsig_handler;
4333 sigaction(SIGINT, &act, NULL);
4334 sigaction(SIGHUP, &act, NULL);
4335 sigaction(SIGTERM, &act, NULL);
4336
4337 act.sa_handler = sigchld_handler;
4338 act.sa_flags = SA_NOCLDSTOP;
4339 sigaction(SIGCHLD, &act, NULL);
4340 }
4341
4342 #endif
4343
4344 #ifdef _WIN32
4345 /* Look for support files in the same directory as the executable. */
4346 static char *find_datadir(const char *argv0)
4347 {
4348 char *p;
4349 char buf[MAX_PATH];
4350 DWORD len;
4351
4352 len = GetModuleFileName(NULL, buf, sizeof(buf) - 1);
4353 if (len == 0) {
4354 return NULL;
4355 }
4356
4357 buf[len] = 0;
4358 p = buf + len - 1;
4359 while (p != buf && *p != '\\')
4360 p--;
4361 *p = 0;
4362 if (access(buf, R_OK) == 0) {
4363 return qemu_strdup(buf);
4364 }
4365 return NULL;
4366 }
4367 #else /* !_WIN32 */
4368
4369 /* Find a likely location for support files using the location of the binary.
4370 For installed binaries this will be "$bindir/../share/qemu". When
4371 running from the build tree this will be "$bindir/../pc-bios". */
4372 #define SHARE_SUFFIX "/share/qemu"
4373 #define BUILD_SUFFIX "/pc-bios"
4374 static char *find_datadir(const char *argv0)
4375 {
4376 char *dir;
4377 char *p = NULL;
4378 char *res;
4379 char buf[PATH_MAX];
4380 size_t max_len;
4381
4382 #if defined(__linux__)
4383 {
4384 int len;
4385 len = readlink("/proc/self/exe", buf, sizeof(buf) - 1);
4386 if (len > 0) {
4387 buf[len] = 0;
4388 p = buf;
4389 }
4390 }
4391 #elif defined(__FreeBSD__)
4392 {
4393 int len;
4394 len = readlink("/proc/curproc/file", buf, sizeof(buf) - 1);
4395 if (len > 0) {
4396 buf[len] = 0;
4397 p = buf;
4398 }
4399 }
4400 #endif
4401 /* If we don't have any way of figuring out the actual executable
4402 location then try argv[0]. */
4403 if (!p) {
4404 p = realpath(argv0, buf);
4405 if (!p) {
4406 return NULL;
4407 }
4408 }
4409 dir = dirname(p);
4410 dir = dirname(dir);
4411
4412 max_len = strlen(dir) +
4413 MAX(strlen(SHARE_SUFFIX), strlen(BUILD_SUFFIX)) + 1;
4414 res = qemu_mallocz(max_len);
4415 snprintf(res, max_len, "%s%s", dir, SHARE_SUFFIX);
4416 if (access(res, R_OK)) {
4417 snprintf(res, max_len, "%s%s", dir, BUILD_SUFFIX);
4418 if (access(res, R_OK)) {
4419 qemu_free(res);
4420 res = NULL;
4421 }
4422 }
4423
4424 return res;
4425 }
4426 #undef SHARE_SUFFIX
4427 #undef BUILD_SUFFIX
4428 #endif
4429
4430 char *qemu_find_file(int type, const char *name)
4431 {
4432 int len;
4433 const char *subdir;
4434 char *buf;
4435
4436 /* If name contains path separators then try it as a straight path. */
4437 if ((strchr(name, '/') || strchr(name, '\\'))
4438 && access(name, R_OK) == 0) {
4439 return qemu_strdup(name);
4440 }
4441 switch (type) {
4442 case QEMU_FILE_TYPE_BIOS:
4443 subdir = "";
4444 break;
4445 case QEMU_FILE_TYPE_KEYMAP:
4446 subdir = "keymaps/";
4447 break;
4448 default:
4449 abort();
4450 }
4451 len = strlen(data_dir) + strlen(name) + strlen(subdir) + 2;
4452 buf = qemu_mallocz(len);
4453 snprintf(buf, len, "%s/%s%s", data_dir, subdir, name);
4454 if (access(buf, R_OK)) {
4455 qemu_free(buf);
4456 return NULL;
4457 }
4458 return buf;
4459 }
4460
4461 static int device_help_func(QemuOpts *opts, void *opaque)
4462 {
4463 return qdev_device_help(opts);
4464 }
4465
4466 static int device_init_func(QemuOpts *opts, void *opaque)
4467 {
4468 DeviceState *dev;
4469
4470 dev = qdev_device_add(opts);
4471 if (!dev)
4472 return -1;
4473 return 0;
4474 }
4475
4476 static int chardev_init_func(QemuOpts *opts, void *opaque)
4477 {
4478 CharDriverState *chr;
4479
4480 chr = qemu_chr_open_opts(opts, NULL);
4481 if (!chr)
4482 return -1;
4483 return 0;
4484 }
4485
4486 static int mon_init_func(QemuOpts *opts, void *opaque)
4487 {
4488 CharDriverState *chr;
4489 const char *chardev;
4490 const char *mode;
4491 int flags;
4492
4493 mode = qemu_opt_get(opts, "mode");
4494 if (mode == NULL) {
4495 mode = "readline";
4496 }
4497 if (strcmp(mode, "readline") == 0) {
4498 flags = MONITOR_USE_READLINE;
4499 } else if (strcmp(mode, "control") == 0) {
4500 flags = MONITOR_USE_CONTROL;
4501 } else {
4502 fprintf(stderr, "unknown monitor mode \"%s\"\n", mode);
4503 exit(1);
4504 }
4505
4506 if (qemu_opt_get_bool(opts, "default", 0))
4507 flags |= MONITOR_IS_DEFAULT;
4508
4509 chardev = qemu_opt_get(opts, "chardev");
4510 chr = qemu_chr_find(chardev);
4511 if (chr == NULL) {
4512 fprintf(stderr, "chardev \"%s\" not found\n", chardev);
4513 exit(1);
4514 }
4515
4516 monitor_init(chr, flags);
4517 return 0;
4518 }
4519
4520 static void monitor_parse(const char *optarg, const char *mode)
4521 {
4522 static int monitor_device_index = 0;
4523 QemuOpts *opts;
4524 const char *p;
4525 char label[32];
4526 int def = 0;
4527
4528 if (strstart(optarg, "chardev:", &p)) {
4529 snprintf(label, sizeof(label), "%s", p);
4530 } else {
4531 if (monitor_device_index) {
4532 snprintf(label, sizeof(label), "monitor%d",
4533 monitor_device_index);
4534 } else {
4535 snprintf(label, sizeof(label), "monitor");
4536 def = 1;
4537 }
4538 opts = qemu_chr_parse_compat(label, optarg);
4539 if (!opts) {
4540 fprintf(stderr, "parse error: %s\n", optarg);
4541 exit(1);
4542 }
4543 }
4544
4545 opts = qemu_opts_create(&qemu_mon_opts, label, 1);
4546 if (!opts) {
4547 fprintf(stderr, "duplicate chardev: %s\n", label);
4548 exit(1);
4549 }
4550 qemu_opt_set(opts, "mode", mode);
4551 qemu_opt_set(opts, "chardev", label);
4552 if (def)
4553 qemu_opt_set(opts, "default", "on");
4554 monitor_device_index++;
4555 }
4556
4557 struct device_config {
4558 enum {
4559 DEV_USB, /* -usbdevice */
4560 DEV_BT, /* -bt */
4561 DEV_SERIAL, /* -serial */
4562 DEV_PARALLEL, /* -parallel */
4563 DEV_VIRTCON, /* -virtioconsole */
4564 DEV_DEBUGCON, /* -debugcon */
4565 } type;
4566 const char *cmdline;
4567 QTAILQ_ENTRY(device_config) next;
4568 };
4569 QTAILQ_HEAD(, device_config) device_configs = QTAILQ_HEAD_INITIALIZER(device_configs);
4570
4571 static void add_device_config(int type, const char *cmdline)
4572 {
4573 struct device_config *conf;
4574
4575 conf = qemu_mallocz(sizeof(*conf));
4576 conf->type = type;
4577 conf->cmdline = cmdline;
4578 QTAILQ_INSERT_TAIL(&device_configs, conf, next);
4579 }
4580
4581 static int foreach_device_config(int type, int (*func)(const char *cmdline))
4582 {
4583 struct device_config *conf;
4584 int rc;
4585
4586 QTAILQ_FOREACH(conf, &device_configs, next) {
4587 if (conf->type != type)
4588 continue;
4589 rc = func(conf->cmdline);
4590 if (0 != rc)
4591 return rc;
4592 }
4593 return 0;
4594 }
4595
4596 static int serial_parse(const char *devname)
4597 {
4598 static int index = 0;
4599 char label[32];
4600
4601 if (strcmp(devname, "none") == 0)
4602 return 0;
4603 if (index == MAX_SERIAL_PORTS) {
4604 fprintf(stderr, "qemu: too many serial ports\n");
4605 exit(1);
4606 }
4607 snprintf(label, sizeof(label), "serial%d", index);
4608 serial_hds[index] = qemu_chr_open(label, devname, NULL);
4609 if (!serial_hds[index]) {
4610 fprintf(stderr, "qemu: could not open serial device '%s': %s\n",
4611 devname, strerror(errno));
4612 return -1;
4613 }
4614 index++;
4615 return 0;
4616 }
4617
4618 static int parallel_parse(const char *devname)
4619 {
4620 static int index = 0;
4621 char label[32];
4622
4623 if (strcmp(devname, "none") == 0)
4624 return 0;
4625 if (index == MAX_PARALLEL_PORTS) {
4626 fprintf(stderr, "qemu: too many parallel ports\n");
4627 exit(1);
4628 }
4629 snprintf(label, sizeof(label), "parallel%d", index);
4630 parallel_hds[index] = qemu_chr_open(label, devname, NULL);
4631 if (!parallel_hds[index]) {
4632 fprintf(stderr, "qemu: could not open parallel device '%s': %s\n",
4633 devname, strerror(errno));
4634 return -1;
4635 }
4636 index++;
4637 return 0;
4638 }
4639
4640 static int virtcon_parse(const char *devname)
4641 {
4642 static int index = 0;
4643 char label[32];
4644 QemuOpts *bus_opts, *dev_opts;
4645
4646 if (strcmp(devname, "none") == 0)
4647 return 0;
4648 if (index == MAX_VIRTIO_CONSOLES) {
4649 fprintf(stderr, "qemu: too many virtio consoles\n");
4650 exit(1);
4651 }
4652
4653 bus_opts = qemu_opts_create(&qemu_device_opts, NULL, 0);
4654 qemu_opt_set(bus_opts, "driver", "virtio-serial");
4655
4656 dev_opts = qemu_opts_create(&qemu_device_opts, NULL, 0);
4657 qemu_opt_set(dev_opts, "driver", "virtconsole");
4658
4659 snprintf(label, sizeof(label), "virtcon%d", index);
4660 virtcon_hds[index] = qemu_chr_open(label, devname, NULL);
4661 if (!virtcon_hds[index]) {
4662 fprintf(stderr, "qemu: could not open virtio console '%s': %s\n",
4663 devname, strerror(errno));
4664 return -1;
4665 }
4666 qemu_opt_set(dev_opts, "chardev", label);
4667
4668 index++;
4669 return 0;
4670 }
4671
4672 static int debugcon_parse(const char *devname)
4673 {
4674 QemuOpts *opts;
4675
4676 if (!qemu_chr_open("debugcon", devname, NULL)) {
4677 exit(1);
4678 }
4679 opts = qemu_opts_create(&qemu_device_opts, "debugcon", 1);
4680 if (!opts) {
4681 fprintf(stderr, "qemu: already have a debugcon device\n");
4682 exit(1);
4683 }
4684 qemu_opt_set(opts, "driver", "isa-debugcon");
4685 qemu_opt_set(opts, "chardev", "debugcon");
4686 return 0;
4687 }
4688
4689 static const QEMUOption *lookup_opt(int argc, char **argv,
4690 const char **poptarg, int *poptind)
4691 {
4692 const QEMUOption *popt;
4693 int optind = *poptind;
4694 char *r = argv[optind];
4695 const char *optarg;
4696
4697 optind++;
4698 /* Treat --foo the same as -foo. */
4699 if (r[1] == '-')
4700 r++;
4701 popt = qemu_options;
4702 for(;;) {
4703 if (!popt->name) {
4704 fprintf(stderr, "%s: invalid option -- '%s'\n",
4705 argv[0], r);
4706 exit(1);
4707 }
4708 if (!strcmp(popt->name, r + 1))
4709 break;
4710 popt++;
4711 }
4712 if (popt->flags & HAS_ARG) {
4713 if (optind >= argc) {
4714 fprintf(stderr, "%s: option '%s' requires an argument\n",
4715 argv[0], r);
4716 exit(1);
4717 }
4718 optarg = argv[optind++];
4719 } else {
4720 optarg = NULL;
4721 }
4722
4723 *poptarg = optarg;
4724 *poptind = optind;
4725
4726 return popt;
4727 }
4728
4729 int main(int argc, char **argv, char **envp)
4730 {
4731 const char *gdbstub_dev = NULL;
4732 uint32_t boot_devices_bitmap = 0;
4733 int i;
4734 int snapshot, linux_boot, net_boot;
4735 const char *initrd_filename;
4736 const char *kernel_filename, *kernel_cmdline;
4737 char boot_devices[33] = "cad"; /* default to HD->floppy->CD-ROM */
4738 DisplayState *ds;
4739 DisplayChangeListener *dcl;
4740 int cyls, heads, secs, translation;
4741 QemuOpts *hda_opts = NULL, *opts;
4742 int optind;
4743 const char *optarg;
4744 const char *loadvm = NULL;
4745 QEMUMachine *machine;
4746 const char *cpu_model;
4747 #ifndef _WIN32
4748 int fds[2];
4749 #endif
4750 int tb_size;
4751 const char *pid_file = NULL;
4752 const char *incoming = NULL;
4753 #ifndef _WIN32
4754 int fd = 0;
4755 struct passwd *pwd = NULL;
4756 const char *chroot_dir = NULL;
4757 const char *run_as = NULL;
4758 #endif
4759 CPUState *env;
4760 int show_vnc_port = 0;
4761 int defconfig = 1;
4762
4763 init_clocks();
4764
4765 qemu_errors_to_file(stderr);
4766 qemu_cache_utils_init(envp);
4767
4768 QLIST_INIT (&vm_change_state_head);
4769 #ifndef _WIN32
4770 {
4771 struct sigaction act;
4772 sigfillset(&act.sa_mask);
4773 act.sa_flags = 0;
4774 act.sa_handler = SIG_IGN;
4775 sigaction(SIGPIPE, &act, NULL);
4776 }
4777 #else
4778 SetConsoleCtrlHandler(qemu_ctrl_handler, TRUE);
4779 /* Note: cpu_interrupt() is currently not SMP safe, so we force
4780 QEMU to run on a single CPU */
4781 {
4782 HANDLE h;
4783 DWORD mask, smask;
4784 int i;
4785 h = GetCurrentProcess();
4786 if (GetProcessAffinityMask(h, &mask, &smask)) {
4787 for(i = 0; i < 32; i++) {
4788 if (mask & (1 << i))
4789 break;
4790 }
4791 if (i != 32) {
4792 mask = 1 << i;
4793 SetProcessAffinityMask(h, mask);
4794 }
4795 }
4796 }
4797 #endif
4798
4799 module_call_init(MODULE_INIT_MACHINE);
4800 machine = find_default_machine();
4801 cpu_model = NULL;
4802 initrd_filename = NULL;
4803 ram_size = 0;
4804 snapshot = 0;
4805 kernel_filename = NULL;
4806 kernel_cmdline = "";
4807 cyls = heads = secs = 0;
4808 translation = BIOS_ATA_TRANSLATION_AUTO;
4809
4810 for (i = 0; i < MAX_NODES; i++) {
4811 node_mem[i] = 0;
4812 node_cpumask[i] = 0;
4813 }
4814
4815 nb_numa_nodes = 0;
4816 nb_nics = 0;
4817
4818 tb_size = 0;
4819 autostart= 1;
4820
4821 /* first pass of option parsing */
4822 optind = 1;
4823 while (optind < argc) {
4824 if (argv[optind][0] != '-') {
4825 /* disk image */
4826 optind++;
4827 continue;
4828 } else {
4829 const QEMUOption *popt;
4830
4831 popt = lookup_opt(argc, argv, &optarg, &optind);
4832 switch (popt->index) {
4833 case QEMU_OPTION_nodefconfig:
4834 defconfig=0;
4835 break;
4836 }
4837 }
4838 }
4839
4840 if (defconfig) {
4841 FILE *fp;
4842 fp = fopen(CONFIG_QEMU_CONFDIR "/qemu.conf", "r");
4843 if (fp) {
4844 if (qemu_config_parse(fp) != 0) {
4845 exit(1);
4846 }
4847 fclose(fp);
4848 }
4849
4850 fp = fopen(CONFIG_QEMU_CONFDIR "/target-" TARGET_ARCH ".conf", "r");
4851 if (fp) {
4852 if (qemu_config_parse(fp) != 0) {
4853 exit(1);
4854 }
4855 fclose(fp);
4856 }
4857 }
4858
4859 /* second pass of option parsing */
4860 optind = 1;
4861 for(;;) {
4862 if (optind >= argc)
4863 break;
4864 if (argv[optind][0] != '-') {
4865 hda_opts = drive_add(argv[optind++], HD_ALIAS, 0);
4866 } else {
4867 const QEMUOption *popt;
4868
4869 popt = lookup_opt(argc, argv, &optarg, &optind);
4870 switch(popt->index) {
4871 case QEMU_OPTION_M:
4872 machine = find_machine(optarg);
4873 if (!machine) {
4874 QEMUMachine *m;
4875 printf("Supported machines are:\n");
4876 for(m = first_machine; m != NULL; m = m->next) {
4877 if (m->alias)
4878 printf("%-10s %s (alias of %s)\n",
4879 m->alias, m->desc, m->name);
4880 printf("%-10s %s%s\n",
4881 m->name, m->desc,
4882 m->is_default ? " (default)" : "");
4883 }
4884 exit(*optarg != '?');
4885 }
4886 break;
4887 case QEMU_OPTION_cpu:
4888 /* hw initialization will check this */
4889 if (*optarg == '?') {
4890 /* XXX: implement xxx_cpu_list for targets that still miss it */
4891 #if defined(cpu_list)
4892 cpu_list(stdout, &fprintf);
4893 #endif
4894 exit(0);
4895 } else {
4896 cpu_model = optarg;
4897 }
4898 break;
4899 case QEMU_OPTION_initrd:
4900 initrd_filename = optarg;
4901 break;
4902 case QEMU_OPTION_hda:
4903 if (cyls == 0)
4904 hda_opts = drive_add(optarg, HD_ALIAS, 0);
4905 else
4906 hda_opts = drive_add(optarg, HD_ALIAS
4907 ",cyls=%d,heads=%d,secs=%d%s",
4908 0, cyls, heads, secs,
4909 translation == BIOS_ATA_TRANSLATION_LBA ?
4910 ",trans=lba" :
4911 translation == BIOS_ATA_TRANSLATION_NONE ?
4912 ",trans=none" : "");
4913 break;
4914 case QEMU_OPTION_hdb:
4915 case QEMU_OPTION_hdc:
4916 case QEMU_OPTION_hdd:
4917 drive_add(optarg, HD_ALIAS, popt->index - QEMU_OPTION_hda);
4918 break;
4919 case QEMU_OPTION_drive:
4920 drive_add(NULL, "%s", optarg);
4921 break;
4922 case QEMU_OPTION_set:
4923 if (qemu_set_option(optarg) != 0)
4924 exit(1);
4925 break;
4926 case QEMU_OPTION_global:
4927 if (qemu_global_option(optarg) != 0)
4928 exit(1);
4929 break;
4930 case QEMU_OPTION_mtdblock:
4931 drive_add(optarg, MTD_ALIAS);
4932 break;
4933 case QEMU_OPTION_sd:
4934 drive_add(optarg, SD_ALIAS);
4935 break;
4936 case QEMU_OPTION_pflash:
4937 drive_add(optarg, PFLASH_ALIAS);
4938 break;
4939 case QEMU_OPTION_snapshot:
4940 snapshot = 1;
4941 break;
4942 case QEMU_OPTION_hdachs:
4943 {
4944 const char *p;
4945 p = optarg;
4946 cyls = strtol(p, (char **)&p, 0);
4947 if (cyls < 1 || cyls > 16383)
4948 goto chs_fail;
4949 if (*p != ',')
4950 goto chs_fail;
4951 p++;
4952 heads = strtol(p, (char **)&p, 0);
4953 if (heads < 1 || heads > 16)
4954 goto chs_fail;
4955 if (*p != ',')
4956 goto chs_fail;
4957 p++;
4958 secs = strtol(p, (char **)&p, 0);
4959 if (secs < 1 || secs > 63)
4960 goto chs_fail;
4961 if (*p == ',') {
4962 p++;
4963 if (!strcmp(p, "none"))
4964 translation = BIOS_ATA_TRANSLATION_NONE;
4965 else if (!strcmp(p, "lba"))
4966 translation = BIOS_ATA_TRANSLATION_LBA;
4967 else if (!strcmp(p, "auto"))
4968 translation = BIOS_ATA_TRANSLATION_AUTO;
4969 else
4970 goto chs_fail;
4971 } else if (*p != '\0') {
4972 chs_fail:
4973 fprintf(stderr, "qemu: invalid physical CHS format\n");
4974 exit(1);
4975 }
4976 if (hda_opts != NULL) {
4977 char num[16];
4978 snprintf(num, sizeof(num), "%d", cyls);
4979 qemu_opt_set(hda_opts, "cyls", num);
4980 snprintf(num, sizeof(num), "%d", heads);
4981 qemu_opt_set(hda_opts, "heads", num);
4982 snprintf(num, sizeof(num), "%d", secs);
4983 qemu_opt_set(hda_opts, "secs", num);
4984 if (translation == BIOS_ATA_TRANSLATION_LBA)
4985 qemu_opt_set(hda_opts, "trans", "lba");
4986 if (translation == BIOS_ATA_TRANSLATION_NONE)
4987 qemu_opt_set(hda_opts, "trans", "none");
4988 }
4989 }
4990 break;
4991 case QEMU_OPTION_numa:
4992 if (nb_numa_nodes >= MAX_NODES) {
4993 fprintf(stderr, "qemu: too many NUMA nodes\n");
4994 exit(1);
4995 }
4996 numa_add(optarg);
4997 break;
4998 case QEMU_OPTION_nographic:
4999 display_type = DT_NOGRAPHIC;
5000 break;
5001 #ifdef CONFIG_CURSES
5002 case QEMU_OPTION_curses:
5003 display_type = DT_CURSES;
5004 break;
5005 #endif
5006 case QEMU_OPTION_portrait:
5007 graphic_rotate = 1;
5008 break;
5009 case QEMU_OPTION_kernel:
5010 kernel_filename = optarg;
5011 break;
5012 case QEMU_OPTION_append:
5013 kernel_cmdline = optarg;
5014 break;
5015 case QEMU_OPTION_cdrom:
5016 drive_add(optarg, CDROM_ALIAS);
5017 break;
5018 case QEMU_OPTION_boot:
5019 {
5020 static const char * const params[] = {
5021 "order", "once", "menu", NULL
5022 };
5023 char buf[sizeof(boot_devices)];
5024 char *standard_boot_devices;
5025 int legacy = 0;
5026
5027 if (!strchr(optarg, '=')) {
5028 legacy = 1;
5029 pstrcpy(buf, sizeof(buf), optarg);
5030 } else if (check_params(buf, sizeof(buf), params, optarg) < 0) {
5031 fprintf(stderr,
5032 "qemu: unknown boot parameter '%s' in '%s'\n",
5033 buf, optarg);
5034 exit(1);
5035 }
5036
5037 if (legacy ||
5038 get_param_value(buf, sizeof(buf), "order", optarg)) {
5039 boot_devices_bitmap = parse_bootdevices(buf);
5040 pstrcpy(boot_devices, sizeof(boot_devices), buf);
5041 }
5042 if (!legacy) {
5043 if (get_param_value(buf, sizeof(buf),
5044 "once", optarg)) {
5045 boot_devices_bitmap |= parse_bootdevices(buf);
5046 standard_boot_devices = qemu_strdup(boot_devices);
5047 pstrcpy(boot_devices, sizeof(boot_devices), buf);
5048 qemu_register_reset(restore_boot_devices,
5049 standard_boot_devices);
5050 }
5051 if (get_param_value(buf, sizeof(buf),
5052 "menu", optarg)) {
5053 if (!strcmp(buf, "on")) {
5054 boot_menu = 1;
5055 } else if (!strcmp(buf, "off")) {
5056 boot_menu = 0;
5057 } else {
5058 fprintf(stderr,
5059 "qemu: invalid option value '%s'\n",
5060 buf);
5061 exit(1);
5062 }
5063 }
5064 }
5065 }
5066 break;
5067 case QEMU_OPTION_fda:
5068 case QEMU_OPTION_fdb:
5069 drive_add(optarg, FD_ALIAS, popt->index - QEMU_OPTION_fda);
5070 break;
5071 #ifdef TARGET_I386
5072 case QEMU_OPTION_no_fd_bootchk:
5073 fd_bootchk = 0;
5074 break;
5075 #endif
5076 case QEMU_OPTION_netdev:
5077 if (net_client_parse(&qemu_netdev_opts, optarg) == -1) {
5078 exit(1);
5079 }
5080 break;
5081 case QEMU_OPTION_net:
5082 if (net_client_parse(&qemu_net_opts, optarg) == -1) {
5083 exit(1);
5084 }
5085 break;
5086 #ifdef CONFIG_SLIRP
5087 case QEMU_OPTION_tftp:
5088 legacy_tftp_prefix = optarg;
5089 break;
5090 case QEMU_OPTION_bootp:
5091 legacy_bootp_filename = optarg;
5092 break;
5093 #ifndef _WIN32
5094 case QEMU_OPTION_smb:
5095 if (net_slirp_smb(optarg) < 0)
5096 exit(1);
5097 break;
5098 #endif
5099 case QEMU_OPTION_redir:
5100 if (net_slirp_redir(optarg) < 0)
5101 exit(1);
5102 break;
5103 #endif
5104 case QEMU_OPTION_bt:
5105 add_device_config(DEV_BT, optarg);
5106 break;
5107 #ifdef HAS_AUDIO
5108 case QEMU_OPTION_audio_help:
5109 AUD_help ();
5110 exit (0);
5111 break;
5112 case QEMU_OPTION_soundhw:
5113 select_soundhw (optarg);
5114 break;
5115 #endif
5116 case QEMU_OPTION_h:
5117 help(0);
5118 break;
5119 case QEMU_OPTION_version:
5120 version();
5121 exit(0);
5122 break;
5123 case QEMU_OPTION_m: {
5124 uint64_t value;
5125 char *ptr;
5126
5127 value = strtoul(optarg, &ptr, 10);
5128 switch (*ptr) {
5129 case 0: case 'M': case 'm':
5130 value <<= 20;
5131 break;
5132 case 'G': case 'g':
5133 value <<= 30;
5134 break;
5135 default:
5136 fprintf(stderr, "qemu: invalid ram size: %s\n", optarg);
5137 exit(1);
5138 }
5139
5140 /* On 32-bit hosts, QEMU is limited by virtual address space */
5141 if (value > (2047 << 20) && HOST_LONG_BITS == 32) {
5142 fprintf(stderr, "qemu: at most 2047 MB RAM can be simulated\n");
5143 exit(1);
5144 }
5145 if (value != (uint64_t)(ram_addr_t)value) {
5146 fprintf(stderr, "qemu: ram size too large\n");
5147 exit(1);
5148 }
5149 ram_size = value;
5150 break;
5151 }
5152 case QEMU_OPTION_d:
5153 {
5154 int mask;
5155 const CPULogItem *item;
5156
5157 mask = cpu_str_to_log_mask(optarg);
5158 if (!mask) {
5159 printf("Log items (comma separated):\n");
5160 for(item = cpu_log_items; item->mask != 0; item++) {
5161 printf("%-10s %s\n", item->name, item->help);
5162 }
5163 exit(1);
5164 }
5165 cpu_set_log(mask);
5166 }
5167 break;
5168 case QEMU_OPTION_s:
5169 gdbstub_dev = "tcp::" DEFAULT_GDBSTUB_PORT;
5170 break;
5171 case QEMU_OPTION_gdb:
5172 gdbstub_dev = optarg;
5173 break;
5174 case QEMU_OPTION_L:
5175 data_dir = optarg;
5176 break;
5177 case QEMU_OPTION_bios:
5178 bios_name = optarg;
5179 break;
5180 case QEMU_OPTION_singlestep:
5181 singlestep = 1;
5182 break;
5183 case QEMU_OPTION_S:
5184 autostart = 0;
5185 break;
5186 case QEMU_OPTION_k:
5187 keyboard_layout = optarg;
5188 break;
5189 case QEMU_OPTION_localtime:
5190 rtc_utc = 0;
5191 break;
5192 case QEMU_OPTION_vga:
5193 select_vgahw (optarg);
5194 break;
5195 #if defined(TARGET_PPC) || defined(TARGET_SPARC)
5196 case QEMU_OPTION_g:
5197 {
5198 const char *p;
5199 int w, h, depth;
5200 p = optarg;
5201 w = strtol(p, (char **)&p, 10);
5202 if (w <= 0) {
5203 graphic_error:
5204 fprintf(stderr, "qemu: invalid resolution or depth\n");
5205 exit(1);
5206 }
5207 if (*p != 'x')
5208 goto graphic_error;
5209 p++;
5210 h = strtol(p, (char **)&p, 10);
5211 if (h <= 0)
5212 goto graphic_error;
5213 if (*p == 'x') {
5214 p++;
5215 depth = strtol(p, (char **)&p, 10);
5216 if (depth != 8 && depth != 15 && depth != 16 &&
5217 depth != 24 && depth != 32)
5218 goto graphic_error;
5219 } else if (*p == '\0') {
5220 depth = graphic_depth;
5221 } else {
5222 goto graphic_error;
5223 }
5224
5225 graphic_width = w;
5226 graphic_height = h;
5227 graphic_depth = depth;
5228 }
5229 break;
5230 #endif
5231 case QEMU_OPTION_echr:
5232 {
5233 char *r;
5234 term_escape_char = strtol(optarg, &r, 0);
5235 if (r == optarg)
5236 printf("Bad argument to echr\n");
5237 break;
5238 }
5239 case QEMU_OPTION_monitor:
5240 monitor_parse(optarg, "readline");
5241 default_monitor = 0;
5242 break;
5243 case QEMU_OPTION_qmp:
5244 monitor_parse(optarg, "control");
5245 default_monitor = 0;
5246 break;
5247 case QEMU_OPTION_mon:
5248 opts = qemu_opts_parse(&qemu_mon_opts, optarg, "chardev");
5249 if (!opts) {
5250 fprintf(stderr, "parse error: %s\n", optarg);
5251 exit(1);
5252 }
5253 default_monitor = 0;
5254 break;
5255 case QEMU_OPTION_chardev:
5256 opts = qemu_opts_parse(&qemu_chardev_opts, optarg, "backend");
5257 if (!opts) {
5258 fprintf(stderr, "parse error: %s\n", optarg);
5259 exit(1);
5260 }
5261 break;
5262 case QEMU_OPTION_serial:
5263 add_device_config(DEV_SERIAL, optarg);
5264 default_serial = 0;
5265 break;
5266 case QEMU_OPTION_watchdog:
5267 if (watchdog) {
5268 fprintf(stderr,
5269 "qemu: only one watchdog option may be given\n");
5270 return 1;
5271 }
5272 watchdog = optarg;
5273 break;
5274 case QEMU_OPTION_watchdog_action:
5275 if (select_watchdog_action(optarg) == -1) {
5276 fprintf(stderr, "Unknown -watchdog-action parameter\n");
5277 exit(1);
5278 }
5279 break;
5280 case QEMU_OPTION_virtiocon:
5281 add_device_config(DEV_VIRTCON, optarg);
5282 default_virtcon = 0;
5283 break;
5284 case QEMU_OPTION_parallel:
5285 add_device_config(DEV_PARALLEL, optarg);
5286 default_parallel = 0;
5287 break;
5288 case QEMU_OPTION_debugcon:
5289 add_device_config(DEV_DEBUGCON, optarg);
5290 break;
5291 case QEMU_OPTION_loadvm:
5292 loadvm = optarg;
5293 break;
5294 case QEMU_OPTION_full_screen:
5295 full_screen = 1;
5296 break;
5297 #ifdef CONFIG_SDL
5298 case QEMU_OPTION_no_frame:
5299 no_frame = 1;
5300 break;
5301 case QEMU_OPTION_alt_grab:
5302 alt_grab = 1;
5303 break;
5304 case QEMU_OPTION_ctrl_grab:
5305 ctrl_grab = 1;
5306 break;
5307 case QEMU_OPTION_no_quit:
5308 no_quit = 1;
5309 break;
5310 case QEMU_OPTION_sdl:
5311 display_type = DT_SDL;
5312 break;
5313 #endif
5314 case QEMU_OPTION_pidfile:
5315 pid_file = optarg;
5316 break;
5317 #ifdef TARGET_I386
5318 case QEMU_OPTION_win2k_hack:
5319 win2k_install_hack = 1;
5320 break;
5321 case QEMU_OPTION_rtc_td_hack:
5322 rtc_td_hack = 1;
5323 break;
5324 case QEMU_OPTION_acpitable:
5325 if(acpi_table_add(optarg) < 0) {
5326 fprintf(stderr, "Wrong acpi table provided\n");
5327 exit(1);
5328 }
5329 break;
5330 case QEMU_OPTION_smbios:
5331 if(smbios_entry_add(optarg) < 0) {
5332 fprintf(stderr, "Wrong smbios provided\n");
5333 exit(1);
5334 }
5335 break;
5336 #endif
5337 #ifdef CONFIG_KVM
5338 case QEMU_OPTION_enable_kvm:
5339 kvm_allowed = 1;
5340 break;
5341 #endif
5342 case QEMU_OPTION_usb:
5343 usb_enabled = 1;
5344 break;
5345 case QEMU_OPTION_usbdevice:
5346 usb_enabled = 1;
5347 add_device_config(DEV_USB, optarg);
5348 break;
5349 case QEMU_OPTION_device:
5350 if (!qemu_opts_parse(&qemu_device_opts, optarg, "driver")) {
5351 exit(1);
5352 }
5353 break;
5354 case QEMU_OPTION_smp:
5355 smp_parse(optarg);
5356 if (smp_cpus < 1) {
5357 fprintf(stderr, "Invalid number of CPUs\n");
5358 exit(1);
5359 }
5360 if (max_cpus < smp_cpus) {
5361 fprintf(stderr, "maxcpus must be equal to or greater than "
5362 "smp\n");
5363 exit(1);
5364 }
5365 if (max_cpus > 255) {
5366 fprintf(stderr, "Unsupported number of maxcpus\n");
5367 exit(1);
5368 }
5369 break;
5370 case QEMU_OPTION_vnc:
5371 display_type = DT_VNC;
5372 vnc_display = optarg;
5373 break;
5374 #ifdef TARGET_I386
5375 case QEMU_OPTION_no_acpi:
5376 acpi_enabled = 0;
5377 break;
5378 case QEMU_OPTION_no_hpet:
5379 no_hpet = 1;
5380 break;
5381 case QEMU_OPTION_balloon:
5382 if (balloon_parse(optarg) < 0) {
5383 fprintf(stderr, "Unknown -balloon argument %s\n", optarg);
5384 exit(1);
5385 }
5386 break;
5387 #endif
5388 case QEMU_OPTION_no_reboot:
5389 no_reboot = 1;
5390 break;
5391 case QEMU_OPTION_no_shutdown:
5392 no_shutdown = 1;
5393 break;
5394 case QEMU_OPTION_show_cursor:
5395 cursor_hide = 0;
5396 break;
5397 case QEMU_OPTION_uuid:
5398 if(qemu_uuid_parse(optarg, qemu_uuid) < 0) {
5399 fprintf(stderr, "Fail to parse UUID string."
5400 " Wrong format.\n");
5401 exit(1);
5402 }
5403 break;
5404 #ifndef _WIN32
5405 case QEMU_OPTION_daemonize:
5406 daemonize = 1;
5407 break;
5408 #endif
5409 case QEMU_OPTION_option_rom:
5410 if (nb_option_roms >= MAX_OPTION_ROMS) {
5411 fprintf(stderr, "Too many option ROMs\n");
5412 exit(1);
5413 }
5414 option_rom[nb_option_roms] = optarg;
5415 nb_option_roms++;
5416 break;
5417 #if defined(TARGET_ARM) || defined(TARGET_M68K)
5418 case QEMU_OPTION_semihosting:
5419 semihosting_enabled = 1;
5420 break;
5421 #endif
5422 case QEMU_OPTION_name:
5423 qemu_name = qemu_strdup(optarg);
5424 {
5425 char *p = strchr(qemu_name, ',');
5426 if (p != NULL) {
5427 *p++ = 0;
5428 if (strncmp(p, "process=", 8)) {
5429 fprintf(stderr, "Unknown subargument %s to -name", p);
5430 exit(1);
5431 }
5432 p += 8;
5433 set_proc_name(p);
5434 }
5435 }
5436 break;
5437 #if defined(TARGET_SPARC) || defined(TARGET_PPC)
5438 case QEMU_OPTION_prom_env:
5439 if (nb_prom_envs >= MAX_PROM_ENVS) {
5440 fprintf(stderr, "Too many prom variables\n");
5441 exit(1);
5442 }
5443 prom_envs[nb_prom_envs] = optarg;
5444 nb_prom_envs++;
5445 break;
5446 #endif
5447 #ifdef TARGET_ARM
5448 case QEMU_OPTION_old_param:
5449 old_param = 1;
5450 break;
5451 #endif
5452 case QEMU_OPTION_clock:
5453 configure_alarms(optarg);
5454 break;
5455 case QEMU_OPTION_startdate:
5456 configure_rtc_date_offset(optarg, 1);
5457 break;
5458 case QEMU_OPTION_rtc:
5459 opts = qemu_opts_parse(&qemu_rtc_opts, optarg, NULL);
5460 if (!opts) {
5461 fprintf(stderr, "parse error: %s\n", optarg);
5462 exit(1);
5463 }
5464 configure_rtc(opts);
5465 break;
5466 case QEMU_OPTION_tb_size:
5467 tb_size = strtol(optarg, NULL, 0);
5468 if (tb_size < 0)
5469 tb_size = 0;
5470 break;
5471 case QEMU_OPTION_icount:
5472 use_icount = 1;
5473 if (strcmp(optarg, "auto") == 0) {
5474 icount_time_shift = -1;
5475 } else {
5476 icount_time_shift = strtol(optarg, NULL, 0);
5477 }
5478 break;
5479 case QEMU_OPTION_incoming:
5480 incoming = optarg;
5481 break;
5482 case QEMU_OPTION_nodefaults:
5483 default_serial = 0;
5484 default_parallel = 0;
5485 default_virtcon = 0;
5486 default_monitor = 0;
5487 default_vga = 0;
5488 default_net = 0;
5489 default_floppy = 0;
5490 default_cdrom = 0;
5491 default_sdcard = 0;
5492 break;
5493 #ifndef _WIN32
5494 case QEMU_OPTION_chroot:
5495 chroot_dir = optarg;
5496 break;
5497 case QEMU_OPTION_runas:
5498 run_as = optarg;
5499 break;
5500 #endif
5501 #ifdef CONFIG_XEN
5502 case QEMU_OPTION_xen_domid:
5503 xen_domid = atoi(optarg);
5504 break;
5505 case QEMU_OPTION_xen_create:
5506 xen_mode = XEN_CREATE;
5507 break;
5508 case QEMU_OPTION_xen_attach:
5509 xen_mode = XEN_ATTACH;
5510 break;
5511 #endif
5512 case QEMU_OPTION_readconfig:
5513 {
5514 FILE *fp;
5515 fp = fopen(optarg, "r");
5516 if (fp == NULL) {
5517 fprintf(stderr, "open %s: %s\n", optarg, strerror(errno));
5518 exit(1);
5519 }
5520 if (qemu_config_parse(fp) != 0) {
5521 exit(1);
5522 }
5523 fclose(fp);
5524 break;
5525 }
5526 case QEMU_OPTION_writeconfig:
5527 {
5528 FILE *fp;
5529 if (strcmp(optarg, "-") == 0) {
5530 fp = stdout;
5531 } else {
5532 fp = fopen(optarg, "w");
5533 if (fp == NULL) {
5534 fprintf(stderr, "open %s: %s\n", optarg, strerror(errno));
5535 exit(1);
5536 }
5537 }
5538 qemu_config_write(fp);
5539 fclose(fp);
5540 break;
5541 }
5542 }
5543 }
5544 }
5545
5546 /* If no data_dir is specified then try to find it relative to the
5547 executable path. */
5548 if (!data_dir) {
5549 data_dir = find_datadir(argv[0]);
5550 }
5551 /* If all else fails use the install patch specified when building. */
5552 if (!data_dir) {
5553 data_dir = CONFIG_QEMU_SHAREDIR;
5554 }
5555
5556 /*
5557 * Default to max_cpus = smp_cpus, in case the user doesn't
5558 * specify a max_cpus value.
5559 */
5560 if (!max_cpus)
5561 max_cpus = smp_cpus;
5562
5563 machine->max_cpus = machine->max_cpus ?: 1; /* Default to UP */
5564 if (smp_cpus > machine->max_cpus) {
5565 fprintf(stderr, "Number of SMP cpus requested (%d), exceeds max cpus "
5566 "supported by machine `%s' (%d)\n", smp_cpus, machine->name,
5567 machine->max_cpus);
5568 exit(1);
5569 }
5570
5571 qemu_opts_foreach(&qemu_device_opts, default_driver_check, NULL, 0);
5572 qemu_opts_foreach(&qemu_global_opts, default_driver_check, NULL, 0);
5573
5574 if (machine->no_serial) {
5575 default_serial = 0;
5576 }
5577 if (machine->no_parallel) {
5578 default_parallel = 0;
5579 }
5580 if (!machine->use_virtcon) {
5581 default_virtcon = 0;
5582 }
5583 if (machine->no_vga) {
5584 default_vga = 0;
5585 }
5586 if (machine->no_floppy) {
5587 default_floppy = 0;
5588 }
5589 if (machine->no_cdrom) {
5590 default_cdrom = 0;
5591 }
5592 if (machine->no_sdcard) {
5593 default_sdcard = 0;
5594 }
5595
5596 if (display_type == DT_NOGRAPHIC) {
5597 if (default_parallel)
5598 add_device_config(DEV_PARALLEL, "null");
5599 if (default_serial && default_monitor) {
5600 add_device_config(DEV_SERIAL, "mon:stdio");
5601 } else if (default_virtcon && default_monitor) {
5602 add_device_config(DEV_VIRTCON, "mon:stdio");
5603 } else {
5604 if (default_serial)
5605 add_device_config(DEV_SERIAL, "stdio");
5606 if (default_virtcon)
5607 add_device_config(DEV_VIRTCON, "stdio");
5608 if (default_monitor)
5609 monitor_parse("stdio", "readline");
5610 }
5611 } else {
5612 if (default_serial)
5613 add_device_config(DEV_SERIAL, "vc:80Cx24C");
5614 if (default_parallel)
5615 add_device_config(DEV_PARALLEL, "vc:80Cx24C");
5616 if (default_monitor)
5617 monitor_parse("vc:80Cx24C", "readline");
5618 if (default_virtcon)
5619 add_device_config(DEV_VIRTCON, "vc:80Cx24C");
5620 }
5621 if (default_vga)
5622 vga_interface_type = VGA_CIRRUS;
5623
5624 if (qemu_opts_foreach(&qemu_chardev_opts, chardev_init_func, NULL, 1) != 0)
5625 exit(1);
5626
5627 #ifndef _WIN32
5628 if (daemonize) {
5629 pid_t pid;
5630
5631 if (pipe(fds) == -1)
5632 exit(1);
5633
5634 pid = fork();
5635 if (pid > 0) {
5636 uint8_t status;
5637 ssize_t len;
5638
5639 close(fds[1]);
5640
5641 again:
5642 len = read(fds[0], &status, 1);
5643 if (len == -1 && (errno == EINTR))
5644 goto again;
5645
5646 if (len != 1)
5647 exit(1);
5648 else if (status == 1) {
5649 fprintf(stderr, "Could not acquire pidfile: %s\n", strerror(errno));
5650 exit(1);
5651 } else
5652 exit(0);
5653 } else if (pid < 0)
5654 exit(1);
5655
5656 close(fds[0]);
5657 qemu_set_cloexec(fds[1]);
5658
5659 setsid();
5660
5661 pid = fork();
5662 if (pid > 0)
5663 exit(0);
5664 else if (pid < 0)
5665 exit(1);
5666
5667 umask(027);
5668
5669 signal(SIGTSTP, SIG_IGN);
5670 signal(SIGTTOU, SIG_IGN);
5671 signal(SIGTTIN, SIG_IGN);
5672 }
5673 #endif
5674
5675 if (pid_file && qemu_create_pidfile(pid_file) != 0) {
5676 #ifndef _WIN32
5677 if (daemonize) {
5678 uint8_t status = 1;
5679 if (write(fds[1], &status, 1) != 1) {
5680 perror("daemonize. Writing to pipe\n");
5681 }
5682 } else
5683 #endif
5684 fprintf(stderr, "Could not acquire pid file: %s\n", strerror(errno));
5685 exit(1);
5686 }
5687
5688 if (kvm_enabled()) {
5689 int ret;
5690
5691 ret = kvm_init(smp_cpus);
5692 if (ret < 0) {
5693 fprintf(stderr, "failed to initialize KVM\n");
5694 exit(1);
5695 }
5696 }
5697
5698 if (qemu_init_main_loop()) {
5699 fprintf(stderr, "qemu_init_main_loop failed\n");
5700 exit(1);
5701 }
5702 linux_boot = (kernel_filename != NULL);
5703
5704 if (!linux_boot && *kernel_cmdline != '\0') {
5705 fprintf(stderr, "-append only allowed with -kernel option\n");
5706 exit(1);
5707 }
5708
5709 if (!linux_boot && initrd_filename != NULL) {
5710 fprintf(stderr, "-initrd only allowed with -kernel option\n");
5711 exit(1);
5712 }
5713
5714 #ifndef _WIN32
5715 /* Win32 doesn't support line-buffering and requires size >= 2 */
5716 setvbuf(stdout, NULL, _IOLBF, 0);
5717 #endif
5718
5719 if (init_timer_alarm() < 0) {
5720 fprintf(stderr, "could not initialize alarm timer\n");
5721 exit(1);
5722 }
5723 if (use_icount && icount_time_shift < 0) {
5724 use_icount = 2;
5725 /* 125MIPS seems a reasonable initial guess at the guest speed.
5726 It will be corrected fairly quickly anyway. */
5727 icount_time_shift = 3;
5728 init_icount_adjust();
5729 }
5730
5731 #ifdef _WIN32
5732 socket_init();
5733 #endif
5734
5735 if (net_init_clients() < 0) {
5736 exit(1);
5737 }
5738
5739 net_boot = (boot_devices_bitmap >> ('n' - 'a')) & 0xF;
5740 net_set_boot_mask(net_boot);
5741
5742 /* init the bluetooth world */
5743 if (foreach_device_config(DEV_BT, bt_parse))
5744 exit(1);
5745
5746 /* init the memory */
5747 if (ram_size == 0)
5748 ram_size = DEFAULT_RAM_SIZE * 1024 * 1024;
5749
5750 /* init the dynamic translator */
5751 cpu_exec_init_all(tb_size * 1024 * 1024);
5752
5753 bdrv_init_with_whitelist();
5754
5755 blk_mig_init();
5756
5757 if (default_cdrom) {
5758 /* we always create the cdrom drive, even if no disk is there */
5759 drive_add(NULL, CDROM_ALIAS);
5760 }
5761
5762 if (default_floppy) {
5763 /* we always create at least one floppy */
5764 drive_add(NULL, FD_ALIAS, 0);
5765 }
5766
5767 if (default_sdcard) {
5768 /* we always create one sd slot, even if no card is in it */
5769 drive_add(NULL, SD_ALIAS);
5770 }
5771
5772 /* open the virtual block devices */
5773 if (snapshot)
5774 qemu_opts_foreach(&qemu_drive_opts, drive_enable_snapshot, NULL, 0);
5775 if (qemu_opts_foreach(&qemu_drive_opts, drive_init_func, machine, 1) != 0)
5776 exit(1);
5777
5778 vmstate_register(0, &vmstate_timers ,&timers_state);
5779 register_savevm_live("ram", 0, 3, NULL, ram_save_live, NULL,
5780 ram_load, NULL);
5781
5782 if (nb_numa_nodes > 0) {
5783 int i;
5784
5785 if (nb_numa_nodes > smp_cpus) {
5786 nb_numa_nodes = smp_cpus;
5787 }
5788
5789 /* If no memory size if given for any node, assume the default case
5790 * and distribute the available memory equally across all nodes
5791 */
5792 for (i = 0; i < nb_numa_nodes; i++) {
5793 if (node_mem[i] != 0)
5794 break;
5795 }
5796 if (i == nb_numa_nodes) {
5797 uint64_t usedmem = 0;
5798
5799 /* On Linux, the each node's border has to be 8MB aligned,
5800 * the final node gets the rest.
5801 */
5802 for (i = 0; i < nb_numa_nodes - 1; i++) {
5803 node_mem[i] = (ram_size / nb_numa_nodes) & ~((1 << 23UL) - 1);
5804 usedmem += node_mem[i];
5805 }
5806 node_mem[i] = ram_size - usedmem;
5807 }
5808
5809 for (i = 0; i < nb_numa_nodes; i++) {
5810 if (node_cpumask[i] != 0)
5811 break;
5812 }
5813 /* assigning the VCPUs round-robin is easier to implement, guest OSes
5814 * must cope with this anyway, because there are BIOSes out there in
5815 * real machines which also use this scheme.
5816 */
5817 if (i == nb_numa_nodes) {
5818 for (i = 0; i < smp_cpus; i++) {
5819 node_cpumask[i % nb_numa_nodes] |= 1 << i;
5820 }
5821 }
5822 }
5823
5824 if (foreach_device_config(DEV_SERIAL, serial_parse) < 0)
5825 exit(1);
5826 if (foreach_device_config(DEV_PARALLEL, parallel_parse) < 0)
5827 exit(1);
5828 if (foreach_device_config(DEV_VIRTCON, virtcon_parse) < 0)
5829 exit(1);
5830 if (foreach_device_config(DEV_DEBUGCON, debugcon_parse) < 0)
5831 exit(1);
5832
5833 module_call_init(MODULE_INIT_DEVICE);
5834
5835 if (qemu_opts_foreach(&qemu_device_opts, device_help_func, NULL, 0) != 0)
5836 exit(0);
5837
5838 if (watchdog) {
5839 i = select_watchdog(watchdog);
5840 if (i > 0)
5841 exit (i == 1 ? 1 : 0);
5842 }
5843
5844 if (machine->compat_props) {
5845 qdev_prop_register_global_list(machine->compat_props);
5846 }
5847 qemu_add_globals();
5848
5849 machine->init(ram_size, boot_devices,
5850 kernel_filename, kernel_cmdline, initrd_filename, cpu_model);
5851
5852
5853 #ifndef _WIN32
5854 /* must be after terminal init, SDL library changes signal handlers */
5855 sighandler_setup();
5856 #endif
5857
5858 for (env = first_cpu; env != NULL; env = env->next_cpu) {
5859 for (i = 0; i < nb_numa_nodes; i++) {
5860 if (node_cpumask[i] & (1 << env->cpu_index)) {
5861 env->numa_node = i;
5862 }
5863 }
5864 }
5865
5866 current_machine = machine;
5867
5868 /* init USB devices */
5869 if (usb_enabled) {
5870 if (foreach_device_config(DEV_USB, usb_parse) < 0)
5871 exit(1);
5872 }
5873
5874 /* init generic devices */
5875 if (qemu_opts_foreach(&qemu_device_opts, device_init_func, NULL, 1) != 0)
5876 exit(1);
5877
5878 if (!display_state)
5879 dumb_display_init();
5880 /* just use the first displaystate for the moment */
5881 ds = display_state;
5882
5883 if (display_type == DT_DEFAULT) {
5884 #if defined(CONFIG_SDL) || defined(CONFIG_COCOA)
5885 display_type = DT_SDL;
5886 #else
5887 display_type = DT_VNC;
5888 vnc_display = "localhost:0,to=99";
5889 show_vnc_port = 1;
5890 #endif
5891 }
5892
5893
5894 switch (display_type) {
5895 case DT_NOGRAPHIC:
5896 break;
5897 #if defined(CONFIG_CURSES)
5898 case DT_CURSES:
5899 curses_display_init(ds, full_screen);
5900 break;
5901 #endif
5902 #if defined(CONFIG_SDL)
5903 case DT_SDL:
5904 sdl_display_init(ds, full_screen, no_frame);
5905 break;
5906 #elif defined(CONFIG_COCOA)
5907 case DT_SDL:
5908 cocoa_display_init(ds, full_screen);
5909 break;
5910 #endif
5911 case DT_VNC:
5912 vnc_display_init(ds);
5913 if (vnc_display_open(ds, vnc_display) < 0)
5914 exit(1);
5915
5916 if (show_vnc_port) {
5917 printf("VNC server running on `%s'\n", vnc_display_local_addr(ds));
5918 }
5919 break;
5920 default:
5921 break;
5922 }
5923 dpy_resize(ds);
5924
5925 dcl = ds->listeners;
5926 while (dcl != NULL) {
5927 if (dcl->dpy_refresh != NULL) {
5928 ds->gui_timer = qemu_new_timer(rt_clock, gui_update, ds);
5929 qemu_mod_timer(ds->gui_timer, qemu_get_clock(rt_clock));
5930 }
5931 dcl = dcl->next;
5932 }
5933
5934 if (display_type == DT_NOGRAPHIC || display_type == DT_VNC) {
5935 nographic_timer = qemu_new_timer(rt_clock, nographic_update, NULL);
5936 qemu_mod_timer(nographic_timer, qemu_get_clock(rt_clock));
5937 }
5938
5939 text_consoles_set_display(display_state);
5940
5941 if (qemu_opts_foreach(&qemu_mon_opts, mon_init_func, NULL, 1) != 0)
5942 exit(1);
5943
5944 if (gdbstub_dev && gdbserver_start(gdbstub_dev) < 0) {
5945 fprintf(stderr, "qemu: could not open gdbserver on device '%s'\n",
5946 gdbstub_dev);
5947 exit(1);
5948 }
5949
5950 qdev_machine_creation_done();
5951
5952 if (rom_load_all() != 0) {
5953 fprintf(stderr, "rom loading failed\n");
5954 exit(1);
5955 }
5956
5957 qemu_system_reset();
5958 if (loadvm) {
5959 if (load_vmstate(cur_mon, loadvm) < 0) {
5960 autostart = 0;
5961 }
5962 }
5963
5964 if (incoming) {
5965 qemu_start_incoming_migration(incoming);
5966 } else if (autostart) {
5967 vm_start();
5968 }
5969
5970 #ifndef _WIN32
5971 if (daemonize) {
5972 uint8_t status = 0;
5973 ssize_t len;
5974
5975 again1:
5976 len = write(fds[1], &status, 1);
5977 if (len == -1 && (errno == EINTR))
5978 goto again1;
5979
5980 if (len != 1)
5981 exit(1);
5982
5983 if (chdir("/")) {
5984 perror("not able to chdir to /");
5985 exit(1);
5986 }
5987 TFR(fd = qemu_open("/dev/null", O_RDWR));
5988 if (fd == -1)
5989 exit(1);
5990 }
5991
5992 if (run_as) {
5993 pwd = getpwnam(run_as);
5994 if (!pwd) {
5995 fprintf(stderr, "User \"%s\" doesn't exist\n", run_as);
5996 exit(1);
5997 }
5998 }
5999
6000 if (chroot_dir) {
6001 if (chroot(chroot_dir) < 0) {
6002 fprintf(stderr, "chroot failed\n");
6003 exit(1);
6004 }
6005 if (chdir("/")) {
6006 perror("not able to chdir to /");
6007 exit(1);
6008 }
6009 }
6010
6011 if (run_as) {
6012 if (setgid(pwd->pw_gid) < 0) {
6013 fprintf(stderr, "Failed to setgid(%d)\n", pwd->pw_gid);
6014 exit(1);
6015 }
6016 if (setuid(pwd->pw_uid) < 0) {
6017 fprintf(stderr, "Failed to setuid(%d)\n", pwd->pw_uid);
6018 exit(1);
6019 }
6020 if (setuid(0) != -1) {
6021 fprintf(stderr, "Dropping privileges failed\n");
6022 exit(1);
6023 }
6024 }
6025
6026 if (daemonize) {
6027 dup2(fd, 0);
6028 dup2(fd, 1);
6029 dup2(fd, 2);
6030
6031 close(fd);
6032 }
6033 #endif
6034
6035 main_loop();
6036 quit_timers();
6037 net_cleanup();
6038
6039 return 0;
6040 }
Anthony Liguori's QEMU queue