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kvm: Fix eflags corruption in kvm mode
[qemu.git] / vl.c
blob1957018cf6765ef3fad1a5e9c1c6f747d73271a4
1 /*
2 * QEMU System Emulator
3 *
4 * Copyright (c) 2003-2008 Fabrice Bellard
5 *
6 * Permission is hereby granted, free of charge, to any person obtaining a copy
7 * of this software and associated documentation files (the "Software"), to deal
8 * in the Software without restriction, including without limitation the rights
9 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
10 * copies of the Software, and to permit persons to whom the Software is
11 * furnished to do so, subject to the following conditions:
12 *
13 * The above copyright notice and this permission notice shall be included in
14 * all copies or substantial portions of the Software.
15 *
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
19 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
21 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
22 * THE SOFTWARE.
23 */
24 #include <unistd.h>
25 #include <fcntl.h>
26 #include <signal.h>
27 #include <time.h>
28 #include <errno.h>
29 #include <sys/time.h>
30 #include <zlib.h>
31
32 /* Needed early for CONFIG_BSD etc. */
33 #include "config-host.h"
34
35 #ifndef _WIN32
36 #include <libgen.h>
37 #include <pwd.h>
38 #include <sys/times.h>
39 #include <sys/wait.h>
40 #include <termios.h>
41 #include <sys/mman.h>
42 #include <sys/ioctl.h>
43 #include <sys/resource.h>
44 #include <sys/socket.h>
45 #include <netinet/in.h>
46 #include <net/if.h>
47 #include <arpa/inet.h>
48 #include <dirent.h>
49 #include <netdb.h>
50 #include <sys/select.h>
51 #ifdef CONFIG_BSD
52 #include <sys/stat.h>
53 #if defined(__FreeBSD__) || defined(__FreeBSD_kernel__) || defined(__DragonFly__)
54 #include <libutil.h>
55 #else
56 #include <util.h>
57 #endif
58 #else
59 #ifdef __linux__
60 #include <pty.h>
61 #include <malloc.h>
62 #include <linux/rtc.h>
63 #include <sys/prctl.h>
64
65 /* For the benefit of older linux systems which don't supply it,
66 we use a local copy of hpet.h. */
67 /* #include <linux/hpet.h> */
68 #include "hpet.h"
69
70 #include <linux/ppdev.h>
71 #include <linux/parport.h>
72 #endif
73 #ifdef __sun__
74 #include <sys/stat.h>
75 #include <sys/ethernet.h>
76 #include <sys/sockio.h>
77 #include <netinet/arp.h>
78 #include <netinet/in.h>
79 #include <netinet/in_systm.h>
80 #include <netinet/ip.h>
81 #include <netinet/ip_icmp.h> // must come after ip.h
82 #include <netinet/udp.h>
83 #include <netinet/tcp.h>
84 #include <net/if.h>
85 #include <syslog.h>
86 #include <stropts.h>
87 /* See MySQL bug #7156 (http://bugs.mysql.com/bug.php?id=7156) for
88 discussion about Solaris header problems */
89 extern int madvise(caddr_t, size_t, int);
90 #endif
91 #endif
92 #endif
93
94 #if defined(__OpenBSD__)
95 #include <util.h>
96 #endif
97
98 #if defined(CONFIG_VDE)
99 #include <libvdeplug.h>
100 #endif
101
102 #ifdef _WIN32
103 #include <windows.h>
104 #include <mmsystem.h>
105 #endif
106
107 #ifdef CONFIG_SDL
108 #if defined(__APPLE__) || defined(main)
109 #include <SDL.h>
110 int qemu_main(int argc, char **argv, char **envp);
111 int main(int argc, char **argv)
112 {
113 return qemu_main(argc, argv, NULL);
114 }
115 #undef main
116 #define main qemu_main
117 #endif
118 #endif /* CONFIG_SDL */
119
120 #ifdef CONFIG_COCOA
121 #undef main
122 #define main qemu_main
123 #endif /* CONFIG_COCOA */
124
125 #include "hw/hw.h"
126 #include "hw/boards.h"
127 #include "hw/usb.h"
128 #include "hw/pcmcia.h"
129 #include "hw/pc.h"
130 #include "hw/audiodev.h"
131 #include "hw/isa.h"
132 #include "hw/baum.h"
133 #include "hw/bt.h"
134 #include "hw/watchdog.h"
135 #include "hw/smbios.h"
136 #include "hw/xen.h"
137 #include "hw/qdev.h"
138 #include "hw/loader.h"
139 #include "bt-host.h"
140 #include "net.h"
141 #include "net/slirp.h"
142 #include "monitor.h"
143 #include "console.h"
144 #include "sysemu.h"
145 #include "gdbstub.h"
146 #include "qemu-timer.h"
147 #include "qemu-char.h"
148 #include "cache-utils.h"
149 #include "block.h"
150 #include "block_int.h"
151 #include "block-migration.h"
152 #include "dma.h"
153 #include "audio/audio.h"
154 #include "migration.h"
155 #include "kvm.h"
156 #include "balloon.h"
157 #include "qemu-option.h"
158 #include "qemu-config.h"
159 #include "qemu-objects.h"
160
161 #include "disas.h"
162
163 #include "exec-all.h"
164
165 #include "qemu_socket.h"
166
167 #include "slirp/libslirp.h"
168
169 #include "qemu-queue.h"
170
171 //#define DEBUG_NET
172 //#define DEBUG_SLIRP
173
174 #define DEFAULT_RAM_SIZE 128
175
176 #define MAX_VIRTIO_CONSOLES 1
177
178 static const char *data_dir;
179 const char *bios_name = NULL;
180 /* Note: drives_table[MAX_DRIVES] is a dummy block driver if none available
181 to store the VM snapshots */
182 struct drivelist drives = QTAILQ_HEAD_INITIALIZER(drives);
183 struct driveoptlist driveopts = QTAILQ_HEAD_INITIALIZER(driveopts);
184 enum vga_retrace_method vga_retrace_method = VGA_RETRACE_DUMB;
185 static DisplayState *display_state;
186 DisplayType display_type = DT_DEFAULT;
187 const char* keyboard_layout = NULL;
188 ram_addr_t ram_size;
189 int nb_nics;
190 NICInfo nd_table[MAX_NICS];
191 int vm_running;
192 int autostart;
193 static int rtc_utc = 1;
194 static int rtc_date_offset = -1; /* -1 means no change */
195 QEMUClock *rtc_clock;
196 int vga_interface_type = VGA_NONE;
197 #ifdef TARGET_SPARC
198 int graphic_width = 1024;
199 int graphic_height = 768;
200 int graphic_depth = 8;
201 #else
202 int graphic_width = 800;
203 int graphic_height = 600;
204 int graphic_depth = 15;
205 #endif
206 static int full_screen = 0;
207 #ifdef CONFIG_SDL
208 static int no_frame = 0;
209 #endif
210 int no_quit = 0;
211 CharDriverState *serial_hds[MAX_SERIAL_PORTS];
212 CharDriverState *parallel_hds[MAX_PARALLEL_PORTS];
213 CharDriverState *virtcon_hds[MAX_VIRTIO_CONSOLES];
214 #ifdef TARGET_I386
215 int win2k_install_hack = 0;
216 int rtc_td_hack = 0;
217 #endif
218 int usb_enabled = 0;
219 int singlestep = 0;
220 int smp_cpus = 1;
221 int max_cpus = 0;
222 int smp_cores = 1;
223 int smp_threads = 1;
224 const char *vnc_display;
225 int acpi_enabled = 1;
226 int no_hpet = 0;
227 int fd_bootchk = 1;
228 int no_reboot = 0;
229 int no_shutdown = 0;
230 int cursor_hide = 1;
231 int graphic_rotate = 0;
232 uint8_t irq0override = 1;
233 #ifndef _WIN32
234 int daemonize = 0;
235 #endif
236 const char *watchdog;
237 const char *option_rom[MAX_OPTION_ROMS];
238 int nb_option_roms;
239 int semihosting_enabled = 0;
240 #ifdef TARGET_ARM
241 int old_param = 0;
242 #endif
243 const char *qemu_name;
244 int alt_grab = 0;
245 int ctrl_grab = 0;
246 #if defined(TARGET_SPARC) || defined(TARGET_PPC)
247 unsigned int nb_prom_envs = 0;
248 const char *prom_envs[MAX_PROM_ENVS];
249 #endif
250 int boot_menu;
251
252 int nb_numa_nodes;
253 uint64_t node_mem[MAX_NODES];
254 uint64_t node_cpumask[MAX_NODES];
255
256 static CPUState *cur_cpu;
257 static CPUState *next_cpu;
258 static int timer_alarm_pending = 1;
259 /* Conversion factor from emulated instructions to virtual clock ticks. */
260 static int icount_time_shift;
261 /* Arbitrarily pick 1MIPS as the minimum allowable speed. */
262 #define MAX_ICOUNT_SHIFT 10
263 /* Compensate for varying guest execution speed. */
264 static int64_t qemu_icount_bias;
265 static QEMUTimer *icount_rt_timer;
266 static QEMUTimer *icount_vm_timer;
267 static QEMUTimer *nographic_timer;
268
269 uint8_t qemu_uuid[16];
270
271 static QEMUBootSetHandler *boot_set_handler;
272 static void *boot_set_opaque;
273
274 static int default_serial = 1;
275 static int default_parallel = 1;
276 static int default_virtcon = 1;
277 static int default_monitor = 1;
278 static int default_vga = 1;
279 static int default_floppy = 1;
280 static int default_cdrom = 1;
281 static int default_sdcard = 1;
282
283 static struct {
284 const char *driver;
285 int *flag;
286 } default_list[] = {
287 { .driver = "isa-serial", .flag = &default_serial },
288 { .driver = "isa-parallel", .flag = &default_parallel },
289 { .driver = "isa-fdc", .flag = &default_floppy },
290 { .driver = "ide-drive", .flag = &default_cdrom },
291 { .driver = "virtio-serial-pci", .flag = &default_virtcon },
292 { .driver = "virtio-serial-s390", .flag = &default_virtcon },
293 { .driver = "virtio-serial", .flag = &default_virtcon },
294 { .driver = "VGA", .flag = &default_vga },
295 { .driver = "cirrus-vga", .flag = &default_vga },
296 { .driver = "vmware-svga", .flag = &default_vga },
297 };
298
299 static int default_driver_check(QemuOpts *opts, void *opaque)
300 {
301 const char *driver = qemu_opt_get(opts, "driver");
302 int i;
303
304 if (!driver)
305 return 0;
306 for (i = 0; i < ARRAY_SIZE(default_list); i++) {
307 if (strcmp(default_list[i].driver, driver) != 0)
308 continue;
309 *(default_list[i].flag) = 0;
310 }
311 return 0;
312 }
313
314 /***********************************************************/
315 /* x86 ISA bus support */
316
317 target_phys_addr_t isa_mem_base = 0;
318 PicState2 *isa_pic;
319
320 /***********************************************************/
321 void hw_error(const char *fmt, ...)
322 {
323 va_list ap;
324 CPUState *env;
325
326 va_start(ap, fmt);
327 fprintf(stderr, "qemu: hardware error: ");
328 vfprintf(stderr, fmt, ap);
329 fprintf(stderr, "\n");
330 for(env = first_cpu; env != NULL; env = env->next_cpu) {
331 fprintf(stderr, "CPU #%d:\n", env->cpu_index);
332 #ifdef TARGET_I386
333 cpu_dump_state(env, stderr, fprintf, X86_DUMP_FPU);
334 #else
335 cpu_dump_state(env, stderr, fprintf, 0);
336 #endif
337 }
338 va_end(ap);
339 abort();
340 }
341
342 static void set_proc_name(const char *s)
343 {
344 #if defined(__linux__) && defined(PR_SET_NAME)
345 char name[16];
346 if (!s)
347 return;
348 name[sizeof(name) - 1] = 0;
349 strncpy(name, s, sizeof(name));
350 /* Could rewrite argv[0] too, but that's a bit more complicated.
351 This simple way is enough for `top'. */
352 prctl(PR_SET_NAME, name);
353 #endif
354 }
355
356 /***************/
357 /* ballooning */
358
359 static QEMUBalloonEvent *qemu_balloon_event;
360 void *qemu_balloon_event_opaque;
361
362 void qemu_add_balloon_handler(QEMUBalloonEvent *func, void *opaque)
363 {
364 qemu_balloon_event = func;
365 qemu_balloon_event_opaque = opaque;
366 }
367
368 int qemu_balloon(ram_addr_t target, MonitorCompletion cb, void *opaque)
369 {
370 if (qemu_balloon_event) {
371 qemu_balloon_event(qemu_balloon_event_opaque, target, cb, opaque);
372 return 1;
373 } else {
374 return 0;
375 }
376 }
377
378 int qemu_balloon_status(MonitorCompletion cb, void *opaque)
379 {
380 if (qemu_balloon_event) {
381 qemu_balloon_event(qemu_balloon_event_opaque, 0, cb, opaque);
382 return 1;
383 } else {
384 return 0;
385 }
386 }
387
388
389 /***********************************************************/
390 /* real time host monotonic timer */
391
392 /* compute with 96 bit intermediate result: (a*b)/c */
393 uint64_t muldiv64(uint64_t a, uint32_t b, uint32_t c)
394 {
395 union {
396 uint64_t ll;
397 struct {
398 #ifdef HOST_WORDS_BIGENDIAN
399 uint32_t high, low;
400 #else
401 uint32_t low, high;
402 #endif
403 } l;
404 } u, res;
405 uint64_t rl, rh;
406
407 u.ll = a;
408 rl = (uint64_t)u.l.low * (uint64_t)b;
409 rh = (uint64_t)u.l.high * (uint64_t)b;
410 rh += (rl >> 32);
411 res.l.high = rh / c;
412 res.l.low = (((rh % c) << 32) + (rl & 0xffffffff)) / c;
413 return res.ll;
414 }
415
416 static int64_t get_clock_realtime(void)
417 {
418 struct timeval tv;
419
420 gettimeofday(&tv, NULL);
421 return tv.tv_sec * 1000000000LL + (tv.tv_usec * 1000);
422 }
423
424 #ifdef WIN32
425
426 static int64_t clock_freq;
427
428 static void init_get_clock(void)
429 {
430 LARGE_INTEGER freq;
431 int ret;
432 ret = QueryPerformanceFrequency(&freq);
433 if (ret == 0) {
434 fprintf(stderr, "Could not calibrate ticks\n");
435 exit(1);
436 }
437 clock_freq = freq.QuadPart;
438 }
439
440 static int64_t get_clock(void)
441 {
442 LARGE_INTEGER ti;
443 QueryPerformanceCounter(&ti);
444 return muldiv64(ti.QuadPart, get_ticks_per_sec(), clock_freq);
445 }
446
447 #else
448
449 static int use_rt_clock;
450
451 static void init_get_clock(void)
452 {
453 use_rt_clock = 0;
454 #if defined(__linux__) || (defined(__FreeBSD__) && __FreeBSD_version >= 500000) \
455 || defined(__DragonFly__) || defined(__FreeBSD_kernel__)
456 {
457 struct timespec ts;
458 if (clock_gettime(CLOCK_MONOTONIC, &ts) == 0) {
459 use_rt_clock = 1;
460 }
461 }
462 #endif
463 }
464
465 static int64_t get_clock(void)
466 {
467 #if defined(__linux__) || (defined(__FreeBSD__) && __FreeBSD_version >= 500000) \
468 || defined(__DragonFly__) || defined(__FreeBSD_kernel__)
469 if (use_rt_clock) {
470 struct timespec ts;
471 clock_gettime(CLOCK_MONOTONIC, &ts);
472 return ts.tv_sec * 1000000000LL + ts.tv_nsec;
473 } else
474 #endif
475 {
476 /* XXX: using gettimeofday leads to problems if the date
477 changes, so it should be avoided. */
478 return get_clock_realtime();
479 }
480 }
481 #endif
482
483 /* Return the virtual CPU time, based on the instruction counter. */
484 static int64_t cpu_get_icount(void)
485 {
486 int64_t icount;
487 CPUState *env = cpu_single_env;;
488 icount = qemu_icount;
489 if (env) {
490 if (!can_do_io(env))
491 fprintf(stderr, "Bad clock read\n");
492 icount -= (env->icount_decr.u16.low + env->icount_extra);
493 }
494 return qemu_icount_bias + (icount << icount_time_shift);
495 }
496
497 /***********************************************************/
498 /* guest cycle counter */
499
500 typedef struct TimersState {
501 int64_t cpu_ticks_prev;
502 int64_t cpu_ticks_offset;
503 int64_t cpu_clock_offset;
504 int32_t cpu_ticks_enabled;
505 int64_t dummy;
506 } TimersState;
507
508 TimersState timers_state;
509
510 /* return the host CPU cycle counter and handle stop/restart */
511 int64_t cpu_get_ticks(void)
512 {
513 if (use_icount) {
514 return cpu_get_icount();
515 }
516 if (!timers_state.cpu_ticks_enabled) {
517 return timers_state.cpu_ticks_offset;
518 } else {
519 int64_t ticks;
520 ticks = cpu_get_real_ticks();
521 if (timers_state.cpu_ticks_prev > ticks) {
522 /* Note: non increasing ticks may happen if the host uses
523 software suspend */
524 timers_state.cpu_ticks_offset += timers_state.cpu_ticks_prev - ticks;
525 }
526 timers_state.cpu_ticks_prev = ticks;
527 return ticks + timers_state.cpu_ticks_offset;
528 }
529 }
530
531 /* return the host CPU monotonic timer and handle stop/restart */
532 static int64_t cpu_get_clock(void)
533 {
534 int64_t ti;
535 if (!timers_state.cpu_ticks_enabled) {
536 return timers_state.cpu_clock_offset;
537 } else {
538 ti = get_clock();
539 return ti + timers_state.cpu_clock_offset;
540 }
541 }
542
543 /* enable cpu_get_ticks() */
544 void cpu_enable_ticks(void)
545 {
546 if (!timers_state.cpu_ticks_enabled) {
547 timers_state.cpu_ticks_offset -= cpu_get_real_ticks();
548 timers_state.cpu_clock_offset -= get_clock();
549 timers_state.cpu_ticks_enabled = 1;
550 }
551 }
552
553 /* disable cpu_get_ticks() : the clock is stopped. You must not call
554 cpu_get_ticks() after that. */
555 void cpu_disable_ticks(void)
556 {
557 if (timers_state.cpu_ticks_enabled) {
558 timers_state.cpu_ticks_offset = cpu_get_ticks();
559 timers_state.cpu_clock_offset = cpu_get_clock();
560 timers_state.cpu_ticks_enabled = 0;
561 }
562 }
563
564 /***********************************************************/
565 /* timers */
566
567 #define QEMU_CLOCK_REALTIME 0
568 #define QEMU_CLOCK_VIRTUAL 1
569 #define QEMU_CLOCK_HOST 2
570
571 struct QEMUClock {
572 int type;
573 /* XXX: add frequency */
574 };
575
576 struct QEMUTimer {
577 QEMUClock *clock;
578 int64_t expire_time;
579 QEMUTimerCB *cb;
580 void *opaque;
581 struct QEMUTimer *next;
582 };
583
584 struct qemu_alarm_timer {
585 char const *name;
586 unsigned int flags;
587
588 int (*start)(struct qemu_alarm_timer *t);
589 void (*stop)(struct qemu_alarm_timer *t);
590 void (*rearm)(struct qemu_alarm_timer *t);
591 void *priv;
592 };
593
594 #define ALARM_FLAG_DYNTICKS 0x1
595 #define ALARM_FLAG_EXPIRED 0x2
596
597 static inline int alarm_has_dynticks(struct qemu_alarm_timer *t)
598 {
599 return t && (t->flags & ALARM_FLAG_DYNTICKS);
600 }
601
602 static void qemu_rearm_alarm_timer(struct qemu_alarm_timer *t)
603 {
604 if (!alarm_has_dynticks(t))
605 return;
606
607 t->rearm(t);
608 }
609
610 /* TODO: MIN_TIMER_REARM_US should be optimized */
611 #define MIN_TIMER_REARM_US 250
612
613 static struct qemu_alarm_timer *alarm_timer;
614
615 #ifdef _WIN32
616
617 struct qemu_alarm_win32 {
618 MMRESULT timerId;
619 unsigned int period;
620 } alarm_win32_data = {0, -1};
621
622 static int win32_start_timer(struct qemu_alarm_timer *t);
623 static void win32_stop_timer(struct qemu_alarm_timer *t);
624 static void win32_rearm_timer(struct qemu_alarm_timer *t);
625
626 #else
627
628 static int unix_start_timer(struct qemu_alarm_timer *t);
629 static void unix_stop_timer(struct qemu_alarm_timer *t);
630
631 #ifdef __linux__
632
633 static int dynticks_start_timer(struct qemu_alarm_timer *t);
634 static void dynticks_stop_timer(struct qemu_alarm_timer *t);
635 static void dynticks_rearm_timer(struct qemu_alarm_timer *t);
636
637 static int hpet_start_timer(struct qemu_alarm_timer *t);
638 static void hpet_stop_timer(struct qemu_alarm_timer *t);
639
640 static int rtc_start_timer(struct qemu_alarm_timer *t);
641 static void rtc_stop_timer(struct qemu_alarm_timer *t);
642
643 #endif /* __linux__ */
644
645 #endif /* _WIN32 */
646
647 /* Correlation between real and virtual time is always going to be
648 fairly approximate, so ignore small variation.
649 When the guest is idle real and virtual time will be aligned in
650 the IO wait loop. */
651 #define ICOUNT_WOBBLE (get_ticks_per_sec() / 10)
652
653 static void icount_adjust(void)
654 {
655 int64_t cur_time;
656 int64_t cur_icount;
657 int64_t delta;
658 static int64_t last_delta;
659 /* If the VM is not running, then do nothing. */
660 if (!vm_running)
661 return;
662
663 cur_time = cpu_get_clock();
664 cur_icount = qemu_get_clock(vm_clock);
665 delta = cur_icount - cur_time;
666 /* FIXME: This is a very crude algorithm, somewhat prone to oscillation. */
667 if (delta > 0
668 && last_delta + ICOUNT_WOBBLE < delta * 2
669 && icount_time_shift > 0) {
670 /* The guest is getting too far ahead. Slow time down. */
671 icount_time_shift--;
672 }
673 if (delta < 0
674 && last_delta - ICOUNT_WOBBLE > delta * 2
675 && icount_time_shift < MAX_ICOUNT_SHIFT) {
676 /* The guest is getting too far behind. Speed time up. */
677 icount_time_shift++;
678 }
679 last_delta = delta;
680 qemu_icount_bias = cur_icount - (qemu_icount << icount_time_shift);
681 }
682
683 static void icount_adjust_rt(void * opaque)
684 {
685 qemu_mod_timer(icount_rt_timer,
686 qemu_get_clock(rt_clock) + 1000);
687 icount_adjust();
688 }
689
690 static void icount_adjust_vm(void * opaque)
691 {
692 qemu_mod_timer(icount_vm_timer,
693 qemu_get_clock(vm_clock) + get_ticks_per_sec() / 10);
694 icount_adjust();
695 }
696
697 static void init_icount_adjust(void)
698 {
699 /* Have both realtime and virtual time triggers for speed adjustment.
700 The realtime trigger catches emulated time passing too slowly,
701 the virtual time trigger catches emulated time passing too fast.
702 Realtime triggers occur even when idle, so use them less frequently
703 than VM triggers. */
704 icount_rt_timer = qemu_new_timer(rt_clock, icount_adjust_rt, NULL);
705 qemu_mod_timer(icount_rt_timer,
706 qemu_get_clock(rt_clock) + 1000);
707 icount_vm_timer = qemu_new_timer(vm_clock, icount_adjust_vm, NULL);
708 qemu_mod_timer(icount_vm_timer,
709 qemu_get_clock(vm_clock) + get_ticks_per_sec() / 10);
710 }
711
712 static struct qemu_alarm_timer alarm_timers[] = {
713 #ifndef _WIN32
714 #ifdef __linux__
715 {"dynticks", ALARM_FLAG_DYNTICKS, dynticks_start_timer,
716 dynticks_stop_timer, dynticks_rearm_timer, NULL},
717 /* HPET - if available - is preferred */
718 {"hpet", 0, hpet_start_timer, hpet_stop_timer, NULL, NULL},
719 /* ...otherwise try RTC */
720 {"rtc", 0, rtc_start_timer, rtc_stop_timer, NULL, NULL},
721 #endif
722 {"unix", 0, unix_start_timer, unix_stop_timer, NULL, NULL},
723 #else
724 {"dynticks", ALARM_FLAG_DYNTICKS, win32_start_timer,
725 win32_stop_timer, win32_rearm_timer, &alarm_win32_data},
726 {"win32", 0, win32_start_timer,
727 win32_stop_timer, NULL, &alarm_win32_data},
728 #endif
729 {NULL, }
730 };
731
732 static void show_available_alarms(void)
733 {
734 int i;
735
736 printf("Available alarm timers, in order of precedence:\n");
737 for (i = 0; alarm_timers[i].name; i++)
738 printf("%s\n", alarm_timers[i].name);
739 }
740
741 static void configure_alarms(char const *opt)
742 {
743 int i;
744 int cur = 0;
745 int count = ARRAY_SIZE(alarm_timers) - 1;
746 char *arg;
747 char *name;
748 struct qemu_alarm_timer tmp;
749
750 if (!strcmp(opt, "?")) {
751 show_available_alarms();
752 exit(0);
753 }
754
755 arg = qemu_strdup(opt);
756
757 /* Reorder the array */
758 name = strtok(arg, ",");
759 while (name) {
760 for (i = 0; i < count && alarm_timers[i].name; i++) {
761 if (!strcmp(alarm_timers[i].name, name))
762 break;
763 }
764
765 if (i == count) {
766 fprintf(stderr, "Unknown clock %s\n", name);
767 goto next;
768 }
769
770 if (i < cur)
771 /* Ignore */
772 goto next;
773
774 /* Swap */
775 tmp = alarm_timers[i];
776 alarm_timers[i] = alarm_timers[cur];
777 alarm_timers[cur] = tmp;
778
779 cur++;
780 next:
781 name = strtok(NULL, ",");
782 }
783
784 qemu_free(arg);
785
786 if (cur) {
787 /* Disable remaining timers */
788 for (i = cur; i < count; i++)
789 alarm_timers[i].name = NULL;
790 } else {
791 show_available_alarms();
792 exit(1);
793 }
794 }
795
796 #define QEMU_NUM_CLOCKS 3
797
798 QEMUClock *rt_clock;
799 QEMUClock *vm_clock;
800 QEMUClock *host_clock;
801
802 static QEMUTimer *active_timers[QEMU_NUM_CLOCKS];
803
804 static QEMUClock *qemu_new_clock(int type)
805 {
806 QEMUClock *clock;
807 clock = qemu_mallocz(sizeof(QEMUClock));
808 clock->type = type;
809 return clock;
810 }
811
812 QEMUTimer *qemu_new_timer(QEMUClock *clock, QEMUTimerCB *cb, void *opaque)
813 {
814 QEMUTimer *ts;
815
816 ts = qemu_mallocz(sizeof(QEMUTimer));
817 ts->clock = clock;
818 ts->cb = cb;
819 ts->opaque = opaque;
820 return ts;
821 }
822
823 void qemu_free_timer(QEMUTimer *ts)
824 {
825 qemu_free(ts);
826 }
827
828 /* stop a timer, but do not dealloc it */
829 void qemu_del_timer(QEMUTimer *ts)
830 {
831 QEMUTimer **pt, *t;
832
833 /* NOTE: this code must be signal safe because
834 qemu_timer_expired() can be called from a signal. */
835 pt = &active_timers[ts->clock->type];
836 for(;;) {
837 t = *pt;
838 if (!t)
839 break;
840 if (t == ts) {
841 *pt = t->next;
842 break;
843 }
844 pt = &t->next;
845 }
846 }
847
848 /* modify the current timer so that it will be fired when current_time
849 >= expire_time. The corresponding callback will be called. */
850 void qemu_mod_timer(QEMUTimer *ts, int64_t expire_time)
851 {
852 QEMUTimer **pt, *t;
853
854 qemu_del_timer(ts);
855
856 /* add the timer in the sorted list */
857 /* NOTE: this code must be signal safe because
858 qemu_timer_expired() can be called from a signal. */
859 pt = &active_timers[ts->clock->type];
860 for(;;) {
861 t = *pt;
862 if (!t)
863 break;
864 if (t->expire_time > expire_time)
865 break;
866 pt = &t->next;
867 }
868 ts->expire_time = expire_time;
869 ts->next = *pt;
870 *pt = ts;
871
872 /* Rearm if necessary */
873 if (pt == &active_timers[ts->clock->type]) {
874 if ((alarm_timer->flags & ALARM_FLAG_EXPIRED) == 0) {
875 qemu_rearm_alarm_timer(alarm_timer);
876 }
877 /* Interrupt execution to force deadline recalculation. */
878 if (use_icount)
879 qemu_notify_event();
880 }
881 }
882
883 int qemu_timer_pending(QEMUTimer *ts)
884 {
885 QEMUTimer *t;
886 for(t = active_timers[ts->clock->type]; t != NULL; t = t->next) {
887 if (t == ts)
888 return 1;
889 }
890 return 0;
891 }
892
893 int qemu_timer_expired(QEMUTimer *timer_head, int64_t current_time)
894 {
895 if (!timer_head)
896 return 0;
897 return (timer_head->expire_time <= current_time);
898 }
899
900 static void qemu_run_timers(QEMUTimer **ptimer_head, int64_t current_time)
901 {
902 QEMUTimer *ts;
903
904 for(;;) {
905 ts = *ptimer_head;
906 if (!ts || ts->expire_time > current_time)
907 break;
908 /* remove timer from the list before calling the callback */
909 *ptimer_head = ts->next;
910 ts->next = NULL;
911
912 /* run the callback (the timer list can be modified) */
913 ts->cb(ts->opaque);
914 }
915 }
916
917 int64_t qemu_get_clock(QEMUClock *clock)
918 {
919 switch(clock->type) {
920 case QEMU_CLOCK_REALTIME:
921 return get_clock() / 1000000;
922 default:
923 case QEMU_CLOCK_VIRTUAL:
924 if (use_icount) {
925 return cpu_get_icount();
926 } else {
927 return cpu_get_clock();
928 }
929 case QEMU_CLOCK_HOST:
930 return get_clock_realtime();
931 }
932 }
933
934 int64_t qemu_get_clock_ns(QEMUClock *clock)
935 {
936 switch(clock->type) {
937 case QEMU_CLOCK_REALTIME:
938 return get_clock();
939 default:
940 case QEMU_CLOCK_VIRTUAL:
941 if (use_icount) {
942 return cpu_get_icount();
943 } else {
944 return cpu_get_clock();
945 }
946 case QEMU_CLOCK_HOST:
947 return get_clock_realtime();
948 }
949 }
950
951 static void init_clocks(void)
952 {
953 init_get_clock();
954 rt_clock = qemu_new_clock(QEMU_CLOCK_REALTIME);
955 vm_clock = qemu_new_clock(QEMU_CLOCK_VIRTUAL);
956 host_clock = qemu_new_clock(QEMU_CLOCK_HOST);
957
958 rtc_clock = host_clock;
959 }
960
961 /* save a timer */
962 void qemu_put_timer(QEMUFile *f, QEMUTimer *ts)
963 {
964 uint64_t expire_time;
965
966 if (qemu_timer_pending(ts)) {
967 expire_time = ts->expire_time;
968 } else {
969 expire_time = -1;
970 }
971 qemu_put_be64(f, expire_time);
972 }
973
974 void qemu_get_timer(QEMUFile *f, QEMUTimer *ts)
975 {
976 uint64_t expire_time;
977
978 expire_time = qemu_get_be64(f);
979 if (expire_time != -1) {
980 qemu_mod_timer(ts, expire_time);
981 } else {
982 qemu_del_timer(ts);
983 }
984 }
985
986 static const VMStateDescription vmstate_timers = {
987 .name = "timer",
988 .version_id = 2,
989 .minimum_version_id = 1,
990 .minimum_version_id_old = 1,
991 .fields = (VMStateField []) {
992 VMSTATE_INT64(cpu_ticks_offset, TimersState),
993 VMSTATE_INT64(dummy, TimersState),
994 VMSTATE_INT64_V(cpu_clock_offset, TimersState, 2),
995 VMSTATE_END_OF_LIST()
996 }
997 };
998
999 static void qemu_event_increment(void);
1000
1001 #ifdef _WIN32
1002 static void CALLBACK host_alarm_handler(UINT uTimerID, UINT uMsg,
1003 DWORD_PTR dwUser, DWORD_PTR dw1,
1004 DWORD_PTR dw2)
1005 #else
1006 static void host_alarm_handler(int host_signum)
1007 #endif
1008 {
1009 #if 0
1010 #define DISP_FREQ 1000
1011 {
1012 static int64_t delta_min = INT64_MAX;
1013 static int64_t delta_max, delta_cum, last_clock, delta, ti;
1014 static int count;
1015 ti = qemu_get_clock(vm_clock);
1016 if (last_clock != 0) {
1017 delta = ti - last_clock;
1018 if (delta < delta_min)
1019 delta_min = delta;
1020 if (delta > delta_max)
1021 delta_max = delta;
1022 delta_cum += delta;
1023 if (++count == DISP_FREQ) {
1024 printf("timer: min=%" PRId64 " us max=%" PRId64 " us avg=%" PRId64 " us avg_freq=%0.3f Hz\n",
1025 muldiv64(delta_min, 1000000, get_ticks_per_sec()),
1026 muldiv64(delta_max, 1000000, get_ticks_per_sec()),
1027 muldiv64(delta_cum, 1000000 / DISP_FREQ, get_ticks_per_sec()),
1028 (double)get_ticks_per_sec() / ((double)delta_cum / DISP_FREQ));
1029 count = 0;
1030 delta_min = INT64_MAX;
1031 delta_max = 0;
1032 delta_cum = 0;
1033 }
1034 }
1035 last_clock = ti;
1036 }
1037 #endif
1038 if (alarm_has_dynticks(alarm_timer) ||
1039 (!use_icount &&
1040 qemu_timer_expired(active_timers[QEMU_CLOCK_VIRTUAL],
1041 qemu_get_clock(vm_clock))) ||
1042 qemu_timer_expired(active_timers[QEMU_CLOCK_REALTIME],
1043 qemu_get_clock(rt_clock)) ||
1044 qemu_timer_expired(active_timers[QEMU_CLOCK_HOST],
1045 qemu_get_clock(host_clock))) {
1046 qemu_event_increment();
1047 if (alarm_timer) alarm_timer->flags |= ALARM_FLAG_EXPIRED;
1048
1049 #ifndef CONFIG_IOTHREAD
1050 if (next_cpu) {
1051 /* stop the currently executing cpu because a timer occured */
1052 cpu_exit(next_cpu);
1053 }
1054 #endif
1055 timer_alarm_pending = 1;
1056 qemu_notify_event();
1057 }
1058 }
1059
1060 static int64_t qemu_next_deadline(void)
1061 {
1062 /* To avoid problems with overflow limit this to 2^32. */
1063 int64_t delta = INT32_MAX;
1064
1065 if (active_timers[QEMU_CLOCK_VIRTUAL]) {
1066 delta = active_timers[QEMU_CLOCK_VIRTUAL]->expire_time -
1067 qemu_get_clock(vm_clock);
1068 }
1069 if (active_timers[QEMU_CLOCK_HOST]) {
1070 int64_t hdelta = active_timers[QEMU_CLOCK_HOST]->expire_time -
1071 qemu_get_clock(host_clock);
1072 if (hdelta < delta)
1073 delta = hdelta;
1074 }
1075
1076 if (delta < 0)
1077 delta = 0;
1078
1079 return delta;
1080 }
1081
1082 #if defined(__linux__)
1083 static uint64_t qemu_next_deadline_dyntick(void)
1084 {
1085 int64_t delta;
1086 int64_t rtdelta;
1087
1088 if (use_icount)
1089 delta = INT32_MAX;
1090 else
1091 delta = (qemu_next_deadline() + 999) / 1000;
1092
1093 if (active_timers[QEMU_CLOCK_REALTIME]) {
1094 rtdelta = (active_timers[QEMU_CLOCK_REALTIME]->expire_time -
1095 qemu_get_clock(rt_clock))*1000;
1096 if (rtdelta < delta)
1097 delta = rtdelta;
1098 }
1099
1100 if (delta < MIN_TIMER_REARM_US)
1101 delta = MIN_TIMER_REARM_US;
1102
1103 return delta;
1104 }
1105 #endif
1106
1107 #ifndef _WIN32
1108
1109 /* Sets a specific flag */
1110 static int fcntl_setfl(int fd, int flag)
1111 {
1112 int flags;
1113
1114 flags = fcntl(fd, F_GETFL);
1115 if (flags == -1)
1116 return -errno;
1117
1118 if (fcntl(fd, F_SETFL, flags | flag) == -1)
1119 return -errno;
1120
1121 return 0;
1122 }
1123
1124 #if defined(__linux__)
1125
1126 #define RTC_FREQ 1024
1127
1128 static void enable_sigio_timer(int fd)
1129 {
1130 struct sigaction act;
1131
1132 /* timer signal */
1133 sigfillset(&act.sa_mask);
1134 act.sa_flags = 0;
1135 act.sa_handler = host_alarm_handler;
1136
1137 sigaction(SIGIO, &act, NULL);
1138 fcntl_setfl(fd, O_ASYNC);
1139 fcntl(fd, F_SETOWN, getpid());
1140 }
1141
1142 static int hpet_start_timer(struct qemu_alarm_timer *t)
1143 {
1144 struct hpet_info info;
1145 int r, fd;
1146
1147 fd = qemu_open("/dev/hpet", O_RDONLY);
1148 if (fd < 0)
1149 return -1;
1150
1151 /* Set frequency */
1152 r = ioctl(fd, HPET_IRQFREQ, RTC_FREQ);
1153 if (r < 0) {
1154 fprintf(stderr, "Could not configure '/dev/hpet' to have a 1024Hz timer. This is not a fatal\n"
1155 "error, but for better emulation accuracy type:\n"
1156 "'echo 1024 > /proc/sys/dev/hpet/max-user-freq' as root.\n");
1157 goto fail;
1158 }
1159
1160 /* Check capabilities */
1161 r = ioctl(fd, HPET_INFO, &info);
1162 if (r < 0)
1163 goto fail;
1164
1165 /* Enable periodic mode */
1166 r = ioctl(fd, HPET_EPI, 0);
1167 if (info.hi_flags && (r < 0))
1168 goto fail;
1169
1170 /* Enable interrupt */
1171 r = ioctl(fd, HPET_IE_ON, 0);
1172 if (r < 0)
1173 goto fail;
1174
1175 enable_sigio_timer(fd);
1176 t->priv = (void *)(long)fd;
1177
1178 return 0;
1179 fail:
1180 close(fd);
1181 return -1;
1182 }
1183
1184 static void hpet_stop_timer(struct qemu_alarm_timer *t)
1185 {
1186 int fd = (long)t->priv;
1187
1188 close(fd);
1189 }
1190
1191 static int rtc_start_timer(struct qemu_alarm_timer *t)
1192 {
1193 int rtc_fd;
1194 unsigned long current_rtc_freq = 0;
1195
1196 TFR(rtc_fd = qemu_open("/dev/rtc", O_RDONLY));
1197 if (rtc_fd < 0)
1198 return -1;
1199 ioctl(rtc_fd, RTC_IRQP_READ, &current_rtc_freq);
1200 if (current_rtc_freq != RTC_FREQ &&
1201 ioctl(rtc_fd, RTC_IRQP_SET, RTC_FREQ) < 0) {
1202 fprintf(stderr, "Could not configure '/dev/rtc' to have a 1024 Hz timer. This is not a fatal\n"
1203 "error, but for better emulation accuracy either use a 2.6 host Linux kernel or\n"
1204 "type 'echo 1024 > /proc/sys/dev/rtc/max-user-freq' as root.\n");
1205 goto fail;
1206 }
1207 if (ioctl(rtc_fd, RTC_PIE_ON, 0) < 0) {
1208 fail:
1209 close(rtc_fd);
1210 return -1;
1211 }
1212
1213 enable_sigio_timer(rtc_fd);
1214
1215 t->priv = (void *)(long)rtc_fd;
1216
1217 return 0;
1218 }
1219
1220 static void rtc_stop_timer(struct qemu_alarm_timer *t)
1221 {
1222 int rtc_fd = (long)t->priv;
1223
1224 close(rtc_fd);
1225 }
1226
1227 static int dynticks_start_timer(struct qemu_alarm_timer *t)
1228 {
1229 struct sigevent ev;
1230 timer_t host_timer;
1231 struct sigaction act;
1232
1233 sigfillset(&act.sa_mask);
1234 act.sa_flags = 0;
1235 act.sa_handler = host_alarm_handler;
1236
1237 sigaction(SIGALRM, &act, NULL);
1238
1239 /*
1240 * Initialize ev struct to 0 to avoid valgrind complaining
1241 * about uninitialized data in timer_create call
1242 */
1243 memset(&ev, 0, sizeof(ev));
1244 ev.sigev_value.sival_int = 0;
1245 ev.sigev_notify = SIGEV_SIGNAL;
1246 ev.sigev_signo = SIGALRM;
1247
1248 if (timer_create(CLOCK_REALTIME, &ev, &host_timer)) {
1249 perror("timer_create");
1250
1251 /* disable dynticks */
1252 fprintf(stderr, "Dynamic Ticks disabled\n");
1253
1254 return -1;
1255 }
1256
1257 t->priv = (void *)(long)host_timer;
1258
1259 return 0;
1260 }
1261
1262 static void dynticks_stop_timer(struct qemu_alarm_timer *t)
1263 {
1264 timer_t host_timer = (timer_t)(long)t->priv;
1265
1266 timer_delete(host_timer);
1267 }
1268
1269 static void dynticks_rearm_timer(struct qemu_alarm_timer *t)
1270 {
1271 timer_t host_timer = (timer_t)(long)t->priv;
1272 struct itimerspec timeout;
1273 int64_t nearest_delta_us = INT64_MAX;
1274 int64_t current_us;
1275
1276 if (!active_timers[QEMU_CLOCK_REALTIME] &&
1277 !active_timers[QEMU_CLOCK_VIRTUAL] &&
1278 !active_timers[QEMU_CLOCK_HOST])
1279 return;
1280
1281 nearest_delta_us = qemu_next_deadline_dyntick();
1282
1283 /* check whether a timer is already running */
1284 if (timer_gettime(host_timer, &timeout)) {
1285 perror("gettime");
1286 fprintf(stderr, "Internal timer error: aborting\n");
1287 exit(1);
1288 }
1289 current_us = timeout.it_value.tv_sec * 1000000 + timeout.it_value.tv_nsec/1000;
1290 if (current_us && current_us <= nearest_delta_us)
1291 return;
1292
1293 timeout.it_interval.tv_sec = 0;
1294 timeout.it_interval.tv_nsec = 0; /* 0 for one-shot timer */
1295 timeout.it_value.tv_sec = nearest_delta_us / 1000000;
1296 timeout.it_value.tv_nsec = (nearest_delta_us % 1000000) * 1000;
1297 if (timer_settime(host_timer, 0 /* RELATIVE */, &timeout, NULL)) {
1298 perror("settime");
1299 fprintf(stderr, "Internal timer error: aborting\n");
1300 exit(1);
1301 }
1302 }
1303
1304 #endif /* defined(__linux__) */
1305
1306 static int unix_start_timer(struct qemu_alarm_timer *t)
1307 {
1308 struct sigaction act;
1309 struct itimerval itv;
1310 int err;
1311
1312 /* timer signal */
1313 sigfillset(&act.sa_mask);
1314 act.sa_flags = 0;
1315 act.sa_handler = host_alarm_handler;
1316
1317 sigaction(SIGALRM, &act, NULL);
1318
1319 itv.it_interval.tv_sec = 0;
1320 /* for i386 kernel 2.6 to get 1 ms */
1321 itv.it_interval.tv_usec = 999;
1322 itv.it_value.tv_sec = 0;
1323 itv.it_value.tv_usec = 10 * 1000;
1324
1325 err = setitimer(ITIMER_REAL, &itv, NULL);
1326 if (err)
1327 return -1;
1328
1329 return 0;
1330 }
1331
1332 static void unix_stop_timer(struct qemu_alarm_timer *t)
1333 {
1334 struct itimerval itv;
1335
1336 memset(&itv, 0, sizeof(itv));
1337 setitimer(ITIMER_REAL, &itv, NULL);
1338 }
1339
1340 #endif /* !defined(_WIN32) */
1341
1342
1343 #ifdef _WIN32
1344
1345 static int win32_start_timer(struct qemu_alarm_timer *t)
1346 {
1347 TIMECAPS tc;
1348 struct qemu_alarm_win32 *data = t->priv;
1349 UINT flags;
1350
1351 memset(&tc, 0, sizeof(tc));
1352 timeGetDevCaps(&tc, sizeof(tc));
1353
1354 if (data->period < tc.wPeriodMin)
1355 data->period = tc.wPeriodMin;
1356
1357 timeBeginPeriod(data->period);
1358
1359 flags = TIME_CALLBACK_FUNCTION;
1360 if (alarm_has_dynticks(t))
1361 flags |= TIME_ONESHOT;
1362 else
1363 flags |= TIME_PERIODIC;
1364
1365 data->timerId = timeSetEvent(1, // interval (ms)
1366 data->period, // resolution
1367 host_alarm_handler, // function
1368 (DWORD)t, // parameter
1369 flags);
1370
1371 if (!data->timerId) {
1372 fprintf(stderr, "Failed to initialize win32 alarm timer: %ld\n",
1373 GetLastError());
1374 timeEndPeriod(data->period);
1375 return -1;
1376 }
1377
1378 return 0;
1379 }
1380
1381 static void win32_stop_timer(struct qemu_alarm_timer *t)
1382 {
1383 struct qemu_alarm_win32 *data = t->priv;
1384
1385 timeKillEvent(data->timerId);
1386 timeEndPeriod(data->period);
1387 }
1388
1389 static void win32_rearm_timer(struct qemu_alarm_timer *t)
1390 {
1391 struct qemu_alarm_win32 *data = t->priv;
1392
1393 if (!active_timers[QEMU_CLOCK_REALTIME] &&
1394 !active_timers[QEMU_CLOCK_VIRTUAL] &&
1395 !active_timers[QEMU_CLOCK_HOST])
1396 return;
1397
1398 timeKillEvent(data->timerId);
1399
1400 data->timerId = timeSetEvent(1,
1401 data->period,
1402 host_alarm_handler,
1403 (DWORD)t,
1404 TIME_ONESHOT | TIME_PERIODIC);
1405
1406 if (!data->timerId) {
1407 fprintf(stderr, "Failed to re-arm win32 alarm timer %ld\n",
1408 GetLastError());
1409
1410 timeEndPeriod(data->period);
1411 exit(1);
1412 }
1413 }
1414
1415 #endif /* _WIN32 */
1416
1417 static int init_timer_alarm(void)
1418 {
1419 struct qemu_alarm_timer *t = NULL;
1420 int i, err = -1;
1421
1422 for (i = 0; alarm_timers[i].name; i++) {
1423 t = &alarm_timers[i];
1424
1425 err = t->start(t);
1426 if (!err)
1427 break;
1428 }
1429
1430 if (err) {
1431 err = -ENOENT;
1432 goto fail;
1433 }
1434
1435 alarm_timer = t;
1436
1437 return 0;
1438
1439 fail:
1440 return err;
1441 }
1442
1443 static void quit_timers(void)
1444 {
1445 alarm_timer->stop(alarm_timer);
1446 alarm_timer = NULL;
1447 }
1448
1449 /***********************************************************/
1450 /* host time/date access */
1451 void qemu_get_timedate(struct tm *tm, int offset)
1452 {
1453 time_t ti;
1454 struct tm *ret;
1455
1456 time(&ti);
1457 ti += offset;
1458 if (rtc_date_offset == -1) {
1459 if (rtc_utc)
1460 ret = gmtime(&ti);
1461 else
1462 ret = localtime(&ti);
1463 } else {
1464 ti -= rtc_date_offset;
1465 ret = gmtime(&ti);
1466 }
1467
1468 memcpy(tm, ret, sizeof(struct tm));
1469 }
1470
1471 int qemu_timedate_diff(struct tm *tm)
1472 {
1473 time_t seconds;
1474
1475 if (rtc_date_offset == -1)
1476 if (rtc_utc)
1477 seconds = mktimegm(tm);
1478 else
1479 seconds = mktime(tm);
1480 else
1481 seconds = mktimegm(tm) + rtc_date_offset;
1482
1483 return seconds - time(NULL);
1484 }
1485
1486 static void configure_rtc_date_offset(const char *startdate, int legacy)
1487 {
1488 time_t rtc_start_date;
1489 struct tm tm;
1490
1491 if (!strcmp(startdate, "now") && legacy) {
1492 rtc_date_offset = -1;
1493 } else {
1494 if (sscanf(startdate, "%d-%d-%dT%d:%d:%d",
1495 &tm.tm_year,
1496 &tm.tm_mon,
1497 &tm.tm_mday,
1498 &tm.tm_hour,
1499 &tm.tm_min,
1500 &tm.tm_sec) == 6) {
1501 /* OK */
1502 } else if (sscanf(startdate, "%d-%d-%d",
1503 &tm.tm_year,
1504 &tm.tm_mon,
1505 &tm.tm_mday) == 3) {
1506 tm.tm_hour = 0;
1507 tm.tm_min = 0;
1508 tm.tm_sec = 0;
1509 } else {
1510 goto date_fail;
1511 }
1512 tm.tm_year -= 1900;
1513 tm.tm_mon--;
1514 rtc_start_date = mktimegm(&tm);
1515 if (rtc_start_date == -1) {
1516 date_fail:
1517 fprintf(stderr, "Invalid date format. Valid formats are:\n"
1518 "'2006-06-17T16:01:21' or '2006-06-17'\n");
1519 exit(1);
1520 }
1521 rtc_date_offset = time(NULL) - rtc_start_date;
1522 }
1523 }
1524
1525 static void configure_rtc(QemuOpts *opts)
1526 {
1527 const char *value;
1528
1529 value = qemu_opt_get(opts, "base");
1530 if (value) {
1531 if (!strcmp(value, "utc")) {
1532 rtc_utc = 1;
1533 } else if (!strcmp(value, "localtime")) {
1534 rtc_utc = 0;
1535 } else {
1536 configure_rtc_date_offset(value, 0);
1537 }
1538 }
1539 value = qemu_opt_get(opts, "clock");
1540 if (value) {
1541 if (!strcmp(value, "host")) {
1542 rtc_clock = host_clock;
1543 } else if (!strcmp(value, "vm")) {
1544 rtc_clock = vm_clock;
1545 } else {
1546 fprintf(stderr, "qemu: invalid option value '%s'\n", value);
1547 exit(1);
1548 }
1549 }
1550 #ifdef CONFIG_TARGET_I386
1551 value = qemu_opt_get(opts, "driftfix");
1552 if (value) {
1553 if (!strcmp(buf, "slew")) {
1554 rtc_td_hack = 1;
1555 } else if (!strcmp(buf, "none")) {
1556 rtc_td_hack = 0;
1557 } else {
1558 fprintf(stderr, "qemu: invalid option value '%s'\n", value);
1559 exit(1);
1560 }
1561 }
1562 #endif
1563 }
1564
1565 #ifdef _WIN32
1566 static void socket_cleanup(void)
1567 {
1568 WSACleanup();
1569 }
1570
1571 static int socket_init(void)
1572 {
1573 WSADATA Data;
1574 int ret, err;
1575
1576 ret = WSAStartup(MAKEWORD(2,2), &Data);
1577 if (ret != 0) {
1578 err = WSAGetLastError();
1579 fprintf(stderr, "WSAStartup: %d\n", err);
1580 return -1;
1581 }
1582 atexit(socket_cleanup);
1583 return 0;
1584 }
1585 #endif
1586
1587 /***********************************************************/
1588 /* Bluetooth support */
1589 static int nb_hcis;
1590 static int cur_hci;
1591 static struct HCIInfo *hci_table[MAX_NICS];
1592
1593 static struct bt_vlan_s {
1594 struct bt_scatternet_s net;
1595 int id;
1596 struct bt_vlan_s *next;
1597 } *first_bt_vlan;
1598
1599 /* find or alloc a new bluetooth "VLAN" */
1600 static struct bt_scatternet_s *qemu_find_bt_vlan(int id)
1601 {
1602 struct bt_vlan_s **pvlan, *vlan;
1603 for (vlan = first_bt_vlan; vlan != NULL; vlan = vlan->next) {
1604 if (vlan->id == id)
1605 return &vlan->net;
1606 }
1607 vlan = qemu_mallocz(sizeof(struct bt_vlan_s));
1608 vlan->id = id;
1609 pvlan = &first_bt_vlan;
1610 while (*pvlan != NULL)
1611 pvlan = &(*pvlan)->next;
1612 *pvlan = vlan;
1613 return &vlan->net;
1614 }
1615
1616 static void null_hci_send(struct HCIInfo *hci, const uint8_t *data, int len)
1617 {
1618 }
1619
1620 static int null_hci_addr_set(struct HCIInfo *hci, const uint8_t *bd_addr)
1621 {
1622 return -ENOTSUP;
1623 }
1624
1625 static struct HCIInfo null_hci = {
1626 .cmd_send = null_hci_send,
1627 .sco_send = null_hci_send,
1628 .acl_send = null_hci_send,
1629 .bdaddr_set = null_hci_addr_set,
1630 };
1631
1632 struct HCIInfo *qemu_next_hci(void)
1633 {
1634 if (cur_hci == nb_hcis)
1635 return &null_hci;
1636
1637 return hci_table[cur_hci++];
1638 }
1639
1640 static struct HCIInfo *hci_init(const char *str)
1641 {
1642 char *endp;
1643 struct bt_scatternet_s *vlan = 0;
1644
1645 if (!strcmp(str, "null"))
1646 /* null */
1647 return &null_hci;
1648 else if (!strncmp(str, "host", 4) && (str[4] == '\0' || str[4] == ':'))
1649 /* host[:hciN] */
1650 return bt_host_hci(str[4] ? str + 5 : "hci0");
1651 else if (!strncmp(str, "hci", 3)) {
1652 /* hci[,vlan=n] */
1653 if (str[3]) {
1654 if (!strncmp(str + 3, ",vlan=", 6)) {
1655 vlan = qemu_find_bt_vlan(strtol(str + 9, &endp, 0));
1656 if (*endp)
1657 vlan = 0;
1658 }
1659 } else
1660 vlan = qemu_find_bt_vlan(0);
1661 if (vlan)
1662 return bt_new_hci(vlan);
1663 }
1664
1665 fprintf(stderr, "qemu: Unknown bluetooth HCI `%s'.\n", str);
1666
1667 return 0;
1668 }
1669
1670 static int bt_hci_parse(const char *str)
1671 {
1672 struct HCIInfo *hci;
1673 bdaddr_t bdaddr;
1674
1675 if (nb_hcis >= MAX_NICS) {
1676 fprintf(stderr, "qemu: Too many bluetooth HCIs (max %i).\n", MAX_NICS);
1677 return -1;
1678 }
1679
1680 hci = hci_init(str);
1681 if (!hci)
1682 return -1;
1683
1684 bdaddr.b[0] = 0x52;
1685 bdaddr.b[1] = 0x54;
1686 bdaddr.b[2] = 0x00;
1687 bdaddr.b[3] = 0x12;
1688 bdaddr.b[4] = 0x34;
1689 bdaddr.b[5] = 0x56 + nb_hcis;
1690 hci->bdaddr_set(hci, bdaddr.b);
1691
1692 hci_table[nb_hcis++] = hci;
1693
1694 return 0;
1695 }
1696
1697 static void bt_vhci_add(int vlan_id)
1698 {
1699 struct bt_scatternet_s *vlan = qemu_find_bt_vlan(vlan_id);
1700
1701 if (!vlan->slave)
1702 fprintf(stderr, "qemu: warning: adding a VHCI to "
1703 "an empty scatternet %i\n", vlan_id);
1704
1705 bt_vhci_init(bt_new_hci(vlan));
1706 }
1707
1708 static struct bt_device_s *bt_device_add(const char *opt)
1709 {
1710 struct bt_scatternet_s *vlan;
1711 int vlan_id = 0;
1712 char *endp = strstr(opt, ",vlan=");
1713 int len = (endp ? endp - opt : strlen(opt)) + 1;
1714 char devname[10];
1715
1716 pstrcpy(devname, MIN(sizeof(devname), len), opt);
1717
1718 if (endp) {
1719 vlan_id = strtol(endp + 6, &endp, 0);
1720 if (*endp) {
1721 fprintf(stderr, "qemu: unrecognised bluetooth vlan Id\n");
1722 return 0;
1723 }
1724 }
1725
1726 vlan = qemu_find_bt_vlan(vlan_id);
1727
1728 if (!vlan->slave)
1729 fprintf(stderr, "qemu: warning: adding a slave device to "
1730 "an empty scatternet %i\n", vlan_id);
1731
1732 if (!strcmp(devname, "keyboard"))
1733 return bt_keyboard_init(vlan);
1734
1735 fprintf(stderr, "qemu: unsupported bluetooth device `%s'\n", devname);
1736 return 0;
1737 }
1738
1739 static int bt_parse(const char *opt)
1740 {
1741 const char *endp, *p;
1742 int vlan;
1743
1744 if (strstart(opt, "hci", &endp)) {
1745 if (!*endp || *endp == ',') {
1746 if (*endp)
1747 if (!strstart(endp, ",vlan=", 0))
1748 opt = endp + 1;
1749
1750 return bt_hci_parse(opt);
1751 }
1752 } else if (strstart(opt, "vhci", &endp)) {
1753 if (!*endp || *endp == ',') {
1754 if (*endp) {
1755 if (strstart(endp, ",vlan=", &p)) {
1756 vlan = strtol(p, (char **) &endp, 0);
1757 if (*endp) {
1758 fprintf(stderr, "qemu: bad scatternet '%s'\n", p);
1759 return 1;
1760 }
1761 } else {
1762 fprintf(stderr, "qemu: bad parameter '%s'\n", endp + 1);
1763 return 1;
1764 }
1765 } else
1766 vlan = 0;
1767
1768 bt_vhci_add(vlan);
1769 return 0;
1770 }
1771 } else if (strstart(opt, "device:", &endp))
1772 return !bt_device_add(endp);
1773
1774 fprintf(stderr, "qemu: bad bluetooth parameter '%s'\n", opt);
1775 return 1;
1776 }
1777
1778 /***********************************************************/
1779 /* QEMU Block devices */
1780
1781 #define HD_ALIAS "index=%d,media=disk"
1782 #define CDROM_ALIAS "index=2,media=cdrom"
1783 #define FD_ALIAS "index=%d,if=floppy"
1784 #define PFLASH_ALIAS "if=pflash"
1785 #define MTD_ALIAS "if=mtd"
1786 #define SD_ALIAS "index=0,if=sd"
1787
1788 QemuOpts *drive_add(const char *file, const char *fmt, ...)
1789 {
1790 va_list ap;
1791 char optstr[1024];
1792 QemuOpts *opts;
1793
1794 va_start(ap, fmt);
1795 vsnprintf(optstr, sizeof(optstr), fmt, ap);
1796 va_end(ap);
1797
1798 opts = qemu_opts_parse(&qemu_drive_opts, optstr, NULL);
1799 if (!opts) {
1800 fprintf(stderr, "%s: huh? duplicate? (%s)\n",
1801 __FUNCTION__, optstr);
1802 return NULL;
1803 }
1804 if (file)
1805 qemu_opt_set(opts, "file", file);
1806 return opts;
1807 }
1808
1809 DriveInfo *drive_get(BlockInterfaceType type, int bus, int unit)
1810 {
1811 DriveInfo *dinfo;
1812
1813 /* seek interface, bus and unit */
1814
1815 QTAILQ_FOREACH(dinfo, &drives, next) {
1816 if (dinfo->type == type &&
1817 dinfo->bus == bus &&
1818 dinfo->unit == unit)
1819 return dinfo;
1820 }
1821
1822 return NULL;
1823 }
1824
1825 DriveInfo *drive_get_by_id(const char *id)
1826 {
1827 DriveInfo *dinfo;
1828
1829 QTAILQ_FOREACH(dinfo, &drives, next) {
1830 if (strcmp(id, dinfo->id))
1831 continue;
1832 return dinfo;
1833 }
1834 return NULL;
1835 }
1836
1837 int drive_get_max_bus(BlockInterfaceType type)
1838 {
1839 int max_bus;
1840 DriveInfo *dinfo;
1841
1842 max_bus = -1;
1843 QTAILQ_FOREACH(dinfo, &drives, next) {
1844 if(dinfo->type == type &&
1845 dinfo->bus > max_bus)
1846 max_bus = dinfo->bus;
1847 }
1848 return max_bus;
1849 }
1850
1851 const char *drive_get_serial(BlockDriverState *bdrv)
1852 {
1853 DriveInfo *dinfo;
1854
1855 QTAILQ_FOREACH(dinfo, &drives, next) {
1856 if (dinfo->bdrv == bdrv)
1857 return dinfo->serial;
1858 }
1859
1860 return "\0";
1861 }
1862
1863 BlockInterfaceErrorAction drive_get_on_error(
1864 BlockDriverState *bdrv, int is_read)
1865 {
1866 DriveInfo *dinfo;
1867
1868 QTAILQ_FOREACH(dinfo, &drives, next) {
1869 if (dinfo->bdrv == bdrv)
1870 return is_read ? dinfo->on_read_error : dinfo->on_write_error;
1871 }
1872
1873 return is_read ? BLOCK_ERR_REPORT : BLOCK_ERR_STOP_ENOSPC;
1874 }
1875
1876 static void bdrv_format_print(void *opaque, const char *name)
1877 {
1878 fprintf(stderr, " %s", name);
1879 }
1880
1881 void drive_uninit(DriveInfo *dinfo)
1882 {
1883 qemu_opts_del(dinfo->opts);
1884 bdrv_delete(dinfo->bdrv);
1885 QTAILQ_REMOVE(&drives, dinfo, next);
1886 qemu_free(dinfo);
1887 }
1888
1889 static int parse_block_error_action(const char *buf, int is_read)
1890 {
1891 if (!strcmp(buf, "ignore")) {
1892 return BLOCK_ERR_IGNORE;
1893 } else if (!is_read && !strcmp(buf, "enospc")) {
1894 return BLOCK_ERR_STOP_ENOSPC;
1895 } else if (!strcmp(buf, "stop")) {
1896 return BLOCK_ERR_STOP_ANY;
1897 } else if (!strcmp(buf, "report")) {
1898 return BLOCK_ERR_REPORT;
1899 } else {
1900 fprintf(stderr, "qemu: '%s' invalid %s error action\n",
1901 buf, is_read ? "read" : "write");
1902 return -1;
1903 }
1904 }
1905
1906 DriveInfo *drive_init(QemuOpts *opts, void *opaque,
1907 int *fatal_error)
1908 {
1909 const char *buf;
1910 const char *file = NULL;
1911 char devname[128];
1912 const char *serial;
1913 const char *mediastr = "";
1914 BlockInterfaceType type;
1915 enum { MEDIA_DISK, MEDIA_CDROM } media;
1916 int bus_id, unit_id;
1917 int cyls, heads, secs, translation;
1918 BlockDriver *drv = NULL;
1919 QEMUMachine *machine = opaque;
1920 int max_devs;
1921 int index;
1922 int cache;
1923 int aio = 0;
1924 int ro = 0;
1925 int bdrv_flags;
1926 int on_read_error, on_write_error;
1927 const char *devaddr;
1928 DriveInfo *dinfo;
1929 int snapshot = 0;
1930
1931 *fatal_error = 1;
1932
1933 translation = BIOS_ATA_TRANSLATION_AUTO;
1934 cache = 1;
1935
1936 if (machine && machine->use_scsi) {
1937 type = IF_SCSI;
1938 max_devs = MAX_SCSI_DEVS;
1939 pstrcpy(devname, sizeof(devname), "scsi");
1940 } else {
1941 type = IF_IDE;
1942 max_devs = MAX_IDE_DEVS;
1943 pstrcpy(devname, sizeof(devname), "ide");
1944 }
1945 media = MEDIA_DISK;
1946
1947 /* extract parameters */
1948 bus_id = qemu_opt_get_number(opts, "bus", 0);
1949 unit_id = qemu_opt_get_number(opts, "unit", -1);
1950 index = qemu_opt_get_number(opts, "index", -1);
1951
1952 cyls = qemu_opt_get_number(opts, "cyls", 0);
1953 heads = qemu_opt_get_number(opts, "heads", 0);
1954 secs = qemu_opt_get_number(opts, "secs", 0);
1955
1956 snapshot = qemu_opt_get_bool(opts, "snapshot", 0);
1957 ro = qemu_opt_get_bool(opts, "readonly", 0);
1958
1959 file = qemu_opt_get(opts, "file");
1960 serial = qemu_opt_get(opts, "serial");
1961
1962 if ((buf = qemu_opt_get(opts, "if")) != NULL) {
1963 pstrcpy(devname, sizeof(devname), buf);
1964 if (!strcmp(buf, "ide")) {
1965 type = IF_IDE;
1966 max_devs = MAX_IDE_DEVS;
1967 } else if (!strcmp(buf, "scsi")) {
1968 type = IF_SCSI;
1969 max_devs = MAX_SCSI_DEVS;
1970 } else if (!strcmp(buf, "floppy")) {
1971 type = IF_FLOPPY;
1972 max_devs = 0;
1973 } else if (!strcmp(buf, "pflash")) {
1974 type = IF_PFLASH;
1975 max_devs = 0;
1976 } else if (!strcmp(buf, "mtd")) {
1977 type = IF_MTD;
1978 max_devs = 0;
1979 } else if (!strcmp(buf, "sd")) {
1980 type = IF_SD;
1981 max_devs = 0;
1982 } else if (!strcmp(buf, "virtio")) {
1983 type = IF_VIRTIO;
1984 max_devs = 0;
1985 } else if (!strcmp(buf, "xen")) {
1986 type = IF_XEN;
1987 max_devs = 0;
1988 } else if (!strcmp(buf, "none")) {
1989 type = IF_NONE;
1990 max_devs = 0;
1991 } else {
1992 fprintf(stderr, "qemu: unsupported bus type '%s'\n", buf);
1993 return NULL;
1994 }
1995 }
1996
1997 if (cyls || heads || secs) {
1998 if (cyls < 1 || (type == IF_IDE && cyls > 16383)) {
1999 fprintf(stderr, "qemu: '%s' invalid physical cyls number\n", buf);
2000 return NULL;
2001 }
2002 if (heads < 1 || (type == IF_IDE && heads > 16)) {
2003 fprintf(stderr, "qemu: '%s' invalid physical heads number\n", buf);
2004 return NULL;
2005 }
2006 if (secs < 1 || (type == IF_IDE && secs > 63)) {
2007 fprintf(stderr, "qemu: '%s' invalid physical secs number\n", buf);
2008 return NULL;
2009 }
2010 }
2011
2012 if ((buf = qemu_opt_get(opts, "trans")) != NULL) {
2013 if (!cyls) {
2014 fprintf(stderr,
2015 "qemu: '%s' trans must be used with cyls,heads and secs\n",
2016 buf);
2017 return NULL;
2018 }
2019 if (!strcmp(buf, "none"))
2020 translation = BIOS_ATA_TRANSLATION_NONE;
2021 else if (!strcmp(buf, "lba"))
2022 translation = BIOS_ATA_TRANSLATION_LBA;
2023 else if (!strcmp(buf, "auto"))
2024 translation = BIOS_ATA_TRANSLATION_AUTO;
2025 else {
2026 fprintf(stderr, "qemu: '%s' invalid translation type\n", buf);
2027 return NULL;
2028 }
2029 }
2030
2031 if ((buf = qemu_opt_get(opts, "media")) != NULL) {
2032 if (!strcmp(buf, "disk")) {
2033 media = MEDIA_DISK;
2034 } else if (!strcmp(buf, "cdrom")) {
2035 if (cyls || secs || heads) {
2036 fprintf(stderr,
2037 "qemu: '%s' invalid physical CHS format\n", buf);
2038 return NULL;
2039 }
2040 media = MEDIA_CDROM;
2041 } else {
2042 fprintf(stderr, "qemu: '%s' invalid media\n", buf);
2043 return NULL;
2044 }
2045 }
2046
2047 if ((buf = qemu_opt_get(opts, "cache")) != NULL) {
2048 if (!strcmp(buf, "off") || !strcmp(buf, "none"))
2049 cache = 0;
2050 else if (!strcmp(buf, "writethrough"))
2051 cache = 1;
2052 else if (!strcmp(buf, "writeback"))
2053 cache = 2;
2054 else {
2055 fprintf(stderr, "qemu: invalid cache option\n");
2056 return NULL;
2057 }
2058 }
2059
2060 #ifdef CONFIG_LINUX_AIO
2061 if ((buf = qemu_opt_get(opts, "aio")) != NULL) {
2062 if (!strcmp(buf, "threads"))
2063 aio = 0;
2064 else if (!strcmp(buf, "native"))
2065 aio = 1;
2066 else {
2067 fprintf(stderr, "qemu: invalid aio option\n");
2068 return NULL;
2069 }
2070 }
2071 #endif
2072
2073 if ((buf = qemu_opt_get(opts, "format")) != NULL) {
2074 if (strcmp(buf, "?") == 0) {
2075 fprintf(stderr, "qemu: Supported formats:");
2076 bdrv_iterate_format(bdrv_format_print, NULL);
2077 fprintf(stderr, "\n");
2078 return NULL;
2079 }
2080 drv = bdrv_find_whitelisted_format(buf);
2081 if (!drv) {
2082 fprintf(stderr, "qemu: '%s' invalid format\n", buf);
2083 return NULL;
2084 }
2085 }
2086
2087 on_write_error = BLOCK_ERR_STOP_ENOSPC;
2088 if ((buf = qemu_opt_get(opts, "werror")) != NULL) {
2089 if (type != IF_IDE && type != IF_SCSI && type != IF_VIRTIO) {
2090 fprintf(stderr, "werror is no supported by this format\n");
2091 return NULL;
2092 }
2093
2094 on_write_error = parse_block_error_action(buf, 0);
2095 if (on_write_error < 0) {
2096 return NULL;
2097 }
2098 }
2099
2100 on_read_error = BLOCK_ERR_REPORT;
2101 if ((buf = qemu_opt_get(opts, "rerror")) != NULL) {
2102 if (type != IF_IDE && type != IF_VIRTIO) {
2103 fprintf(stderr, "rerror is no supported by this format\n");
2104 return NULL;
2105 }
2106
2107 on_read_error = parse_block_error_action(buf, 1);
2108 if (on_read_error < 0) {
2109 return NULL;
2110 }
2111 }
2112
2113 if ((devaddr = qemu_opt_get(opts, "addr")) != NULL) {
2114 if (type != IF_VIRTIO) {
2115 fprintf(stderr, "addr is not supported\n");
2116 return NULL;
2117 }
2118 }
2119
2120 /* compute bus and unit according index */
2121
2122 if (index != -1) {
2123 if (bus_id != 0 || unit_id != -1) {
2124 fprintf(stderr,
2125 "qemu: index cannot be used with bus and unit\n");
2126 return NULL;
2127 }
2128 if (max_devs == 0)
2129 {
2130 unit_id = index;
2131 bus_id = 0;
2132 } else {
2133 unit_id = index % max_devs;
2134 bus_id = index / max_devs;
2135 }
2136 }
2137
2138 /* if user doesn't specify a unit_id,
2139 * try to find the first free
2140 */
2141
2142 if (unit_id == -1) {
2143 unit_id = 0;
2144 while (drive_get(type, bus_id, unit_id) != NULL) {
2145 unit_id++;
2146 if (max_devs && unit_id >= max_devs) {
2147 unit_id -= max_devs;
2148 bus_id++;
2149 }
2150 }
2151 }
2152
2153 /* check unit id */
2154
2155 if (max_devs && unit_id >= max_devs) {
2156 fprintf(stderr, "qemu: unit %d too big (max is %d)\n",
2157 unit_id, max_devs - 1);
2158 return NULL;
2159 }
2160
2161 /*
2162 * ignore multiple definitions
2163 */
2164
2165 if (drive_get(type, bus_id, unit_id) != NULL) {
2166 *fatal_error = 0;
2167 return NULL;
2168 }
2169
2170 /* init */
2171
2172 dinfo = qemu_mallocz(sizeof(*dinfo));
2173 if ((buf = qemu_opts_id(opts)) != NULL) {
2174 dinfo->id = qemu_strdup(buf);
2175 } else {
2176 /* no id supplied -> create one */
2177 dinfo->id = qemu_mallocz(32);
2178 if (type == IF_IDE || type == IF_SCSI)
2179 mediastr = (media == MEDIA_CDROM) ? "-cd" : "-hd";
2180 if (max_devs)
2181 snprintf(dinfo->id, 32, "%s%i%s%i",
2182 devname, bus_id, mediastr, unit_id);
2183 else
2184 snprintf(dinfo->id, 32, "%s%s%i",
2185 devname, mediastr, unit_id);
2186 }
2187 dinfo->bdrv = bdrv_new(dinfo->id);
2188 dinfo->devaddr = devaddr;
2189 dinfo->type = type;
2190 dinfo->bus = bus_id;
2191 dinfo->unit = unit_id;
2192 dinfo->on_read_error = on_read_error;
2193 dinfo->on_write_error = on_write_error;
2194 dinfo->opts = opts;
2195 if (serial)
2196 strncpy(dinfo->serial, serial, sizeof(serial));
2197 QTAILQ_INSERT_TAIL(&drives, dinfo, next);
2198
2199 switch(type) {
2200 case IF_IDE:
2201 case IF_SCSI:
2202 case IF_XEN:
2203 case IF_NONE:
2204 switch(media) {
2205 case MEDIA_DISK:
2206 if (cyls != 0) {
2207 bdrv_set_geometry_hint(dinfo->bdrv, cyls, heads, secs);
2208 bdrv_set_translation_hint(dinfo->bdrv, translation);
2209 }
2210 break;
2211 case MEDIA_CDROM:
2212 bdrv_set_type_hint(dinfo->bdrv, BDRV_TYPE_CDROM);
2213 break;
2214 }
2215 break;
2216 case IF_SD:
2217 /* FIXME: This isn't really a floppy, but it's a reasonable
2218 approximation. */
2219 case IF_FLOPPY:
2220 bdrv_set_type_hint(dinfo->bdrv, BDRV_TYPE_FLOPPY);
2221 break;
2222 case IF_PFLASH:
2223 case IF_MTD:
2224 break;
2225 case IF_VIRTIO:
2226 /* add virtio block device */
2227 opts = qemu_opts_create(&qemu_device_opts, NULL, 0);
2228 qemu_opt_set(opts, "driver", "virtio-blk-pci");
2229 qemu_opt_set(opts, "drive", dinfo->id);
2230 if (devaddr)
2231 qemu_opt_set(opts, "addr", devaddr);
2232 break;
2233 case IF_COUNT:
2234 abort();
2235 }
2236 if (!file) {
2237 *fatal_error = 0;
2238 return NULL;
2239 }
2240 bdrv_flags = 0;
2241 if (snapshot) {
2242 bdrv_flags |= BDRV_O_SNAPSHOT;
2243 cache = 2; /* always use write-back with snapshot */
2244 }
2245 if (cache == 0) /* no caching */
2246 bdrv_flags |= BDRV_O_NOCACHE;
2247 else if (cache == 2) /* write-back */
2248 bdrv_flags |= BDRV_O_CACHE_WB;
2249
2250 if (aio == 1) {
2251 bdrv_flags |= BDRV_O_NATIVE_AIO;
2252 } else {
2253 bdrv_flags &= ~BDRV_O_NATIVE_AIO;
2254 }
2255
2256 if (ro == 1) {
2257 if (type != IF_SCSI && type != IF_VIRTIO && type != IF_FLOPPY) {
2258 fprintf(stderr, "qemu: readonly flag not supported for drive with this interface\n");
2259 return NULL;
2260 }
2261 }
2262 /*
2263 * cdrom is read-only. Set it now, after above interface checking
2264 * since readonly attribute not explicitly required, so no error.
2265 */
2266 if (media == MEDIA_CDROM) {
2267 ro = 1;
2268 }
2269 bdrv_flags |= ro ? 0 : BDRV_O_RDWR;
2270
2271 if (bdrv_open2(dinfo->bdrv, file, bdrv_flags, drv) < 0) {
2272 fprintf(stderr, "qemu: could not open disk image %s: %s\n",
2273 file, strerror(errno));
2274 return NULL;
2275 }
2276
2277 if (bdrv_key_required(dinfo->bdrv))
2278 autostart = 0;
2279 *fatal_error = 0;
2280 return dinfo;
2281 }
2282
2283 static int drive_init_func(QemuOpts *opts, void *opaque)
2284 {
2285 QEMUMachine *machine = opaque;
2286 int fatal_error = 0;
2287
2288 if (drive_init(opts, machine, &fatal_error) == NULL) {
2289 if (fatal_error)
2290 return 1;
2291 }
2292 return 0;
2293 }
2294
2295 static int drive_enable_snapshot(QemuOpts *opts, void *opaque)
2296 {
2297 if (NULL == qemu_opt_get(opts, "snapshot")) {
2298 qemu_opt_set(opts, "snapshot", "on");
2299 }
2300 return 0;
2301 }
2302
2303 void qemu_register_boot_set(QEMUBootSetHandler *func, void *opaque)
2304 {
2305 boot_set_handler = func;
2306 boot_set_opaque = opaque;
2307 }
2308
2309 int qemu_boot_set(const char *boot_devices)
2310 {
2311 if (!boot_set_handler) {
2312 return -EINVAL;
2313 }
2314 return boot_set_handler(boot_set_opaque, boot_devices);
2315 }
2316
2317 static int parse_bootdevices(char *devices)
2318 {
2319 /* We just do some generic consistency checks */
2320 const char *p;
2321 int bitmap = 0;
2322
2323 for (p = devices; *p != '\0'; p++) {
2324 /* Allowed boot devices are:
2325 * a-b: floppy disk drives
2326 * c-f: IDE disk drives
2327 * g-m: machine implementation dependant drives
2328 * n-p: network devices
2329 * It's up to each machine implementation to check if the given boot
2330 * devices match the actual hardware implementation and firmware
2331 * features.
2332 */
2333 if (*p < 'a' || *p > 'p') {
2334 fprintf(stderr, "Invalid boot device '%c'\n", *p);
2335 exit(1);
2336 }
2337 if (bitmap & (1 << (*p - 'a'))) {
2338 fprintf(stderr, "Boot device '%c' was given twice\n", *p);
2339 exit(1);
2340 }
2341 bitmap |= 1 << (*p - 'a');
2342 }
2343 return bitmap;
2344 }
2345
2346 static void restore_boot_devices(void *opaque)
2347 {
2348 char *standard_boot_devices = opaque;
2349
2350 qemu_boot_set(standard_boot_devices);
2351
2352 qemu_unregister_reset(restore_boot_devices, standard_boot_devices);
2353 qemu_free(standard_boot_devices);
2354 }
2355
2356 static void numa_add(const char *optarg)
2357 {
2358 char option[128];
2359 char *endptr;
2360 unsigned long long value, endvalue;
2361 int nodenr;
2362
2363 optarg = get_opt_name(option, 128, optarg, ',') + 1;
2364 if (!strcmp(option, "node")) {
2365 if (get_param_value(option, 128, "nodeid", optarg) == 0) {
2366 nodenr = nb_numa_nodes;
2367 } else {
2368 nodenr = strtoull(option, NULL, 10);
2369 }
2370
2371 if (get_param_value(option, 128, "mem", optarg) == 0) {
2372 node_mem[nodenr] = 0;
2373 } else {
2374 value = strtoull(option, &endptr, 0);
2375 switch (*endptr) {
2376 case 0: case 'M': case 'm':
2377 value <<= 20;
2378 break;
2379 case 'G': case 'g':
2380 value <<= 30;
2381 break;
2382 }
2383 node_mem[nodenr] = value;
2384 }
2385 if (get_param_value(option, 128, "cpus", optarg) == 0) {
2386 node_cpumask[nodenr] = 0;
2387 } else {
2388 value = strtoull(option, &endptr, 10);
2389 if (value >= 64) {
2390 value = 63;
2391 fprintf(stderr, "only 64 CPUs in NUMA mode supported.\n");
2392 } else {
2393 if (*endptr == '-') {
2394 endvalue = strtoull(endptr+1, &endptr, 10);
2395 if (endvalue >= 63) {
2396 endvalue = 62;
2397 fprintf(stderr,
2398 "only 63 CPUs in NUMA mode supported.\n");
2399 }
2400 value = (2ULL << endvalue) - (1ULL << value);
2401 } else {
2402 value = 1ULL << value;
2403 }
2404 }
2405 node_cpumask[nodenr] = value;
2406 }
2407 nb_numa_nodes++;
2408 }
2409 return;
2410 }
2411
2412 static void smp_parse(const char *optarg)
2413 {
2414 int smp, sockets = 0, threads = 0, cores = 0;
2415 char *endptr;
2416 char option[128];
2417
2418 smp = strtoul(optarg, &endptr, 10);
2419 if (endptr != optarg) {
2420 if (*endptr == ',') {
2421 endptr++;
2422 }
2423 }
2424 if (get_param_value(option, 128, "sockets", endptr) != 0)
2425 sockets = strtoull(option, NULL, 10);
2426 if (get_param_value(option, 128, "cores", endptr) != 0)
2427 cores = strtoull(option, NULL, 10);
2428 if (get_param_value(option, 128, "threads", endptr) != 0)
2429 threads = strtoull(option, NULL, 10);
2430 if (get_param_value(option, 128, "maxcpus", endptr) != 0)
2431 max_cpus = strtoull(option, NULL, 10);
2432
2433 /* compute missing values, prefer sockets over cores over threads */
2434 if (smp == 0 || sockets == 0) {
2435 sockets = sockets > 0 ? sockets : 1;
2436 cores = cores > 0 ? cores : 1;
2437 threads = threads > 0 ? threads : 1;
2438 if (smp == 0) {
2439 smp = cores * threads * sockets;
2440 }
2441 } else {
2442 if (cores == 0) {
2443 threads = threads > 0 ? threads : 1;
2444 cores = smp / (sockets * threads);
2445 } else {
2446 if (sockets) {
2447 threads = smp / (cores * sockets);
2448 }
2449 }
2450 }
2451 smp_cpus = smp;
2452 smp_cores = cores > 0 ? cores : 1;
2453 smp_threads = threads > 0 ? threads : 1;
2454 if (max_cpus == 0)
2455 max_cpus = smp_cpus;
2456 }
2457
2458 /***********************************************************/
2459 /* USB devices */
2460
2461 static int usb_device_add(const char *devname, int is_hotplug)
2462 {
2463 const char *p;
2464 USBDevice *dev = NULL;
2465
2466 if (!usb_enabled)
2467 return -1;
2468
2469 /* drivers with .usbdevice_name entry in USBDeviceInfo */
2470 dev = usbdevice_create(devname);
2471 if (dev)
2472 goto done;
2473
2474 /* the other ones */
2475 if (strstart(devname, "host:", &p)) {
2476 dev = usb_host_device_open(p);
2477 } else if (!strcmp(devname, "bt") || strstart(devname, "bt:", &p)) {
2478 dev = usb_bt_init(devname[2] ? hci_init(p) :
2479 bt_new_hci(qemu_find_bt_vlan(0)));
2480 } else {
2481 return -1;
2482 }
2483 if (!dev)
2484 return -1;
2485
2486 done:
2487 return 0;
2488 }
2489
2490 static int usb_device_del(const char *devname)
2491 {
2492 int bus_num, addr;
2493 const char *p;
2494
2495 if (strstart(devname, "host:", &p))
2496 return usb_host_device_close(p);
2497
2498 if (!usb_enabled)
2499 return -1;
2500
2501 p = strchr(devname, '.');
2502 if (!p)
2503 return -1;
2504 bus_num = strtoul(devname, NULL, 0);
2505 addr = strtoul(p + 1, NULL, 0);
2506
2507 return usb_device_delete_addr(bus_num, addr);
2508 }
2509
2510 static int usb_parse(const char *cmdline)
2511 {
2512 int r;
2513 r = usb_device_add(cmdline, 0);
2514 if (r < 0) {
2515 fprintf(stderr, "qemu: could not add USB device '%s'\n", cmdline);
2516 }
2517 return r;
2518 }
2519
2520 void do_usb_add(Monitor *mon, const QDict *qdict)
2521 {
2522 const char *devname = qdict_get_str(qdict, "devname");
2523 if (usb_device_add(devname, 1) < 0) {
2524 qemu_error("could not add USB device '%s'\n", devname);
2525 }
2526 }
2527
2528 void do_usb_del(Monitor *mon, const QDict *qdict)
2529 {
2530 const char *devname = qdict_get_str(qdict, "devname");
2531 if (usb_device_del(devname) < 0) {
2532 qemu_error("could not delete USB device '%s'\n", devname);
2533 }
2534 }
2535
2536 /***********************************************************/
2537 /* PCMCIA/Cardbus */
2538
2539 static struct pcmcia_socket_entry_s {
2540 PCMCIASocket *socket;
2541 struct pcmcia_socket_entry_s *next;
2542 } *pcmcia_sockets = 0;
2543
2544 void pcmcia_socket_register(PCMCIASocket *socket)
2545 {
2546 struct pcmcia_socket_entry_s *entry;
2547
2548 entry = qemu_malloc(sizeof(struct pcmcia_socket_entry_s));
2549 entry->socket = socket;
2550 entry->next = pcmcia_sockets;
2551 pcmcia_sockets = entry;
2552 }
2553
2554 void pcmcia_socket_unregister(PCMCIASocket *socket)
2555 {
2556 struct pcmcia_socket_entry_s *entry, **ptr;
2557
2558 ptr = &pcmcia_sockets;
2559 for (entry = *ptr; entry; ptr = &entry->next, entry = *ptr)
2560 if (entry->socket == socket) {
2561 *ptr = entry->next;
2562 qemu_free(entry);
2563 }
2564 }
2565
2566 void pcmcia_info(Monitor *mon)
2567 {
2568 struct pcmcia_socket_entry_s *iter;
2569
2570 if (!pcmcia_sockets)
2571 monitor_printf(mon, "No PCMCIA sockets\n");
2572
2573 for (iter = pcmcia_sockets; iter; iter = iter->next)
2574 monitor_printf(mon, "%s: %s\n", iter->socket->slot_string,
2575 iter->socket->attached ? iter->socket->card_string :
2576 "Empty");
2577 }
2578
2579 /***********************************************************/
2580 /* register display */
2581
2582 struct DisplayAllocator default_allocator = {
2583 defaultallocator_create_displaysurface,
2584 defaultallocator_resize_displaysurface,
2585 defaultallocator_free_displaysurface
2586 };
2587
2588 void register_displaystate(DisplayState *ds)
2589 {
2590 DisplayState **s;
2591 s = &display_state;
2592 while (*s != NULL)
2593 s = &(*s)->next;
2594 ds->next = NULL;
2595 *s = ds;
2596 }
2597
2598 DisplayState *get_displaystate(void)
2599 {
2600 return display_state;
2601 }
2602
2603 DisplayAllocator *register_displayallocator(DisplayState *ds, DisplayAllocator *da)
2604 {
2605 if(ds->allocator == &default_allocator) ds->allocator = da;
2606 return ds->allocator;
2607 }
2608
2609 /* dumb display */
2610
2611 static void dumb_display_init(void)
2612 {
2613 DisplayState *ds = qemu_mallocz(sizeof(DisplayState));
2614 ds->allocator = &default_allocator;
2615 ds->surface = qemu_create_displaysurface(ds, 640, 480);
2616 register_displaystate(ds);
2617 }
2618
2619 /***********************************************************/
2620 /* I/O handling */
2621
2622 typedef struct IOHandlerRecord {
2623 int fd;
2624 IOCanRWHandler *fd_read_poll;
2625 IOHandler *fd_read;
2626 IOHandler *fd_write;
2627 int deleted;
2628 void *opaque;
2629 /* temporary data */
2630 struct pollfd *ufd;
2631 struct IOHandlerRecord *next;
2632 } IOHandlerRecord;
2633
2634 static IOHandlerRecord *first_io_handler;
2635
2636 /* XXX: fd_read_poll should be suppressed, but an API change is
2637 necessary in the character devices to suppress fd_can_read(). */
2638 int qemu_set_fd_handler2(int fd,
2639 IOCanRWHandler *fd_read_poll,
2640 IOHandler *fd_read,
2641 IOHandler *fd_write,
2642 void *opaque)
2643 {
2644 IOHandlerRecord **pioh, *ioh;
2645
2646 if (!fd_read && !fd_write) {
2647 pioh = &first_io_handler;
2648 for(;;) {
2649 ioh = *pioh;
2650 if (ioh == NULL)
2651 break;
2652 if (ioh->fd == fd) {
2653 ioh->deleted = 1;
2654 break;
2655 }
2656 pioh = &ioh->next;
2657 }
2658 } else {
2659 for(ioh = first_io_handler; ioh != NULL; ioh = ioh->next) {
2660 if (ioh->fd == fd)
2661 goto found;
2662 }
2663 ioh = qemu_mallocz(sizeof(IOHandlerRecord));
2664 ioh->next = first_io_handler;
2665 first_io_handler = ioh;
2666 found:
2667 ioh->fd = fd;
2668 ioh->fd_read_poll = fd_read_poll;
2669 ioh->fd_read = fd_read;
2670 ioh->fd_write = fd_write;
2671 ioh->opaque = opaque;
2672 ioh->deleted = 0;
2673 }
2674 return 0;
2675 }
2676
2677 int qemu_set_fd_handler(int fd,
2678 IOHandler *fd_read,
2679 IOHandler *fd_write,
2680 void *opaque)
2681 {
2682 return qemu_set_fd_handler2(fd, NULL, fd_read, fd_write, opaque);
2683 }
2684
2685 #ifdef _WIN32
2686 /***********************************************************/
2687 /* Polling handling */
2688
2689 typedef struct PollingEntry {
2690 PollingFunc *func;
2691 void *opaque;
2692 struct PollingEntry *next;
2693 } PollingEntry;
2694
2695 static PollingEntry *first_polling_entry;
2696
2697 int qemu_add_polling_cb(PollingFunc *func, void *opaque)
2698 {
2699 PollingEntry **ppe, *pe;
2700 pe = qemu_mallocz(sizeof(PollingEntry));
2701 pe->func = func;
2702 pe->opaque = opaque;
2703 for(ppe = &first_polling_entry; *ppe != NULL; ppe = &(*ppe)->next);
2704 *ppe = pe;
2705 return 0;
2706 }
2707
2708 void qemu_del_polling_cb(PollingFunc *func, void *opaque)
2709 {
2710 PollingEntry **ppe, *pe;
2711 for(ppe = &first_polling_entry; *ppe != NULL; ppe = &(*ppe)->next) {
2712 pe = *ppe;
2713 if (pe->func == func && pe->opaque == opaque) {
2714 *ppe = pe->next;
2715 qemu_free(pe);
2716 break;
2717 }
2718 }
2719 }
2720
2721 /***********************************************************/
2722 /* Wait objects support */
2723 typedef struct WaitObjects {
2724 int num;
2725 HANDLE events[MAXIMUM_WAIT_OBJECTS + 1];
2726 WaitObjectFunc *func[MAXIMUM_WAIT_OBJECTS + 1];
2727 void *opaque[MAXIMUM_WAIT_OBJECTS + 1];
2728 } WaitObjects;
2729
2730 static WaitObjects wait_objects = {0};
2731
2732 int qemu_add_wait_object(HANDLE handle, WaitObjectFunc *func, void *opaque)
2733 {
2734 WaitObjects *w = &wait_objects;
2735
2736 if (w->num >= MAXIMUM_WAIT_OBJECTS)
2737 return -1;
2738 w->events[w->num] = handle;
2739 w->func[w->num] = func;
2740 w->opaque[w->num] = opaque;
2741 w->num++;
2742 return 0;
2743 }
2744
2745 void qemu_del_wait_object(HANDLE handle, WaitObjectFunc *func, void *opaque)
2746 {
2747 int i, found;
2748 WaitObjects *w = &wait_objects;
2749
2750 found = 0;
2751 for (i = 0; i < w->num; i++) {
2752 if (w->events[i] == handle)
2753 found = 1;
2754 if (found) {
2755 w->events[i] = w->events[i + 1];
2756 w->func[i] = w->func[i + 1];
2757 w->opaque[i] = w->opaque[i + 1];
2758 }
2759 }
2760 if (found)
2761 w->num--;
2762 }
2763 #endif
2764
2765 /***********************************************************/
2766 /* ram save/restore */
2767
2768 #define RAM_SAVE_FLAG_FULL 0x01 /* Obsolete, not used anymore */
2769 #define RAM_SAVE_FLAG_COMPRESS 0x02
2770 #define RAM_SAVE_FLAG_MEM_SIZE 0x04
2771 #define RAM_SAVE_FLAG_PAGE 0x08
2772 #define RAM_SAVE_FLAG_EOS 0x10
2773
2774 static int is_dup_page(uint8_t *page, uint8_t ch)
2775 {
2776 uint32_t val = ch << 24 | ch << 16 | ch << 8 | ch;
2777 uint32_t *array = (uint32_t *)page;
2778 int i;
2779
2780 for (i = 0; i < (TARGET_PAGE_SIZE / 4); i++) {
2781 if (array[i] != val)
2782 return 0;
2783 }
2784
2785 return 1;
2786 }
2787
2788 static int ram_save_block(QEMUFile *f)
2789 {
2790 static ram_addr_t current_addr = 0;
2791 ram_addr_t saved_addr = current_addr;
2792 ram_addr_t addr = 0;
2793 int found = 0;
2794
2795 while (addr < last_ram_offset) {
2796 if (cpu_physical_memory_get_dirty(current_addr, MIGRATION_DIRTY_FLAG)) {
2797 uint8_t *p;
2798
2799 cpu_physical_memory_reset_dirty(current_addr,
2800 current_addr + TARGET_PAGE_SIZE,
2801 MIGRATION_DIRTY_FLAG);
2802
2803 p = qemu_get_ram_ptr(current_addr);
2804
2805 if (is_dup_page(p, *p)) {
2806 qemu_put_be64(f, current_addr | RAM_SAVE_FLAG_COMPRESS);
2807 qemu_put_byte(f, *p);
2808 } else {
2809 qemu_put_be64(f, current_addr | RAM_SAVE_FLAG_PAGE);
2810 qemu_put_buffer(f, p, TARGET_PAGE_SIZE);
2811 }
2812
2813 found = 1;
2814 break;
2815 }
2816 addr += TARGET_PAGE_SIZE;
2817 current_addr = (saved_addr + addr) % last_ram_offset;
2818 }
2819
2820 return found;
2821 }
2822
2823 static uint64_t bytes_transferred;
2824
2825 static ram_addr_t ram_save_remaining(void)
2826 {
2827 ram_addr_t addr;
2828 ram_addr_t count = 0;
2829
2830 for (addr = 0; addr < last_ram_offset; addr += TARGET_PAGE_SIZE) {
2831 if (cpu_physical_memory_get_dirty(addr, MIGRATION_DIRTY_FLAG))
2832 count++;
2833 }
2834
2835 return count;
2836 }
2837
2838 uint64_t ram_bytes_remaining(void)
2839 {
2840 return ram_save_remaining() * TARGET_PAGE_SIZE;
2841 }
2842
2843 uint64_t ram_bytes_transferred(void)
2844 {
2845 return bytes_transferred;
2846 }
2847
2848 uint64_t ram_bytes_total(void)
2849 {
2850 return last_ram_offset;
2851 }
2852
2853 static int ram_save_live(Monitor *mon, QEMUFile *f, int stage, void *opaque)
2854 {
2855 ram_addr_t addr;
2856 uint64_t bytes_transferred_last;
2857 double bwidth = 0;
2858 uint64_t expected_time = 0;
2859
2860 if (stage < 0) {
2861 cpu_physical_memory_set_dirty_tracking(0);
2862 return 0;
2863 }
2864
2865 if (cpu_physical_sync_dirty_bitmap(0, TARGET_PHYS_ADDR_MAX) != 0) {
2866 qemu_file_set_error(f);
2867 return 0;
2868 }
2869
2870 if (stage == 1) {
2871 bytes_transferred = 0;
2872
2873 /* Make sure all dirty bits are set */
2874 for (addr = 0; addr < last_ram_offset; addr += TARGET_PAGE_SIZE) {
2875 if (!cpu_physical_memory_get_dirty(addr, MIGRATION_DIRTY_FLAG))
2876 cpu_physical_memory_set_dirty(addr);
2877 }
2878
2879 /* Enable dirty memory tracking */
2880 cpu_physical_memory_set_dirty_tracking(1);
2881
2882 qemu_put_be64(f, last_ram_offset | RAM_SAVE_FLAG_MEM_SIZE);
2883 }
2884
2885 bytes_transferred_last = bytes_transferred;
2886 bwidth = qemu_get_clock_ns(rt_clock);
2887
2888 while (!qemu_file_rate_limit(f)) {
2889 int ret;
2890
2891 ret = ram_save_block(f);
2892 bytes_transferred += ret * TARGET_PAGE_SIZE;
2893 if (ret == 0) /* no more blocks */
2894 break;
2895 }
2896
2897 bwidth = qemu_get_clock_ns(rt_clock) - bwidth;
2898 bwidth = (bytes_transferred - bytes_transferred_last) / bwidth;
2899
2900 /* if we haven't transferred anything this round, force expected_time to a
2901 * a very high value, but without crashing */
2902 if (bwidth == 0)
2903 bwidth = 0.000001;
2904
2905 /* try transferring iterative blocks of memory */
2906 if (stage == 3) {
2907 /* flush all remaining blocks regardless of rate limiting */
2908 while (ram_save_block(f) != 0) {
2909 bytes_transferred += TARGET_PAGE_SIZE;
2910 }
2911 cpu_physical_memory_set_dirty_tracking(0);
2912 }
2913
2914 qemu_put_be64(f, RAM_SAVE_FLAG_EOS);
2915
2916 expected_time = ram_save_remaining() * TARGET_PAGE_SIZE / bwidth;
2917
2918 return (stage == 2) && (expected_time <= migrate_max_downtime());
2919 }
2920
2921 static int ram_load(QEMUFile *f, void *opaque, int version_id)
2922 {
2923 ram_addr_t addr;
2924 int flags;
2925
2926 if (version_id != 3)
2927 return -EINVAL;
2928
2929 do {
2930 addr = qemu_get_be64(f);
2931
2932 flags = addr & ~TARGET_PAGE_MASK;
2933 addr &= TARGET_PAGE_MASK;
2934
2935 if (flags & RAM_SAVE_FLAG_MEM_SIZE) {
2936 if (addr != last_ram_offset)
2937 return -EINVAL;
2938 }
2939
2940 if (flags & RAM_SAVE_FLAG_COMPRESS) {
2941 uint8_t ch = qemu_get_byte(f);
2942 memset(qemu_get_ram_ptr(addr), ch, TARGET_PAGE_SIZE);
2943 #ifndef _WIN32
2944 if (ch == 0 &&
2945 (!kvm_enabled() || kvm_has_sync_mmu())) {
2946 madvise(qemu_get_ram_ptr(addr), TARGET_PAGE_SIZE, MADV_DONTNEED);
2947 }
2948 #endif
2949 } else if (flags & RAM_SAVE_FLAG_PAGE) {
2950 qemu_get_buffer(f, qemu_get_ram_ptr(addr), TARGET_PAGE_SIZE);
2951 }
2952 if (qemu_file_has_error(f)) {
2953 return -EIO;
2954 }
2955 } while (!(flags & RAM_SAVE_FLAG_EOS));
2956
2957 return 0;
2958 }
2959
2960 void qemu_service_io(void)
2961 {
2962 qemu_notify_event();
2963 }
2964
2965 /***********************************************************/
2966 /* machine registration */
2967
2968 static QEMUMachine *first_machine = NULL;
2969 QEMUMachine *current_machine = NULL;
2970
2971 int qemu_register_machine(QEMUMachine *m)
2972 {
2973 QEMUMachine **pm;
2974 pm = &first_machine;
2975 while (*pm != NULL)
2976 pm = &(*pm)->next;
2977 m->next = NULL;
2978 *pm = m;
2979 return 0;
2980 }
2981
2982 static QEMUMachine *find_machine(const char *name)
2983 {
2984 QEMUMachine *m;
2985
2986 for(m = first_machine; m != NULL; m = m->next) {
2987 if (!strcmp(m->name, name))
2988 return m;
2989 if (m->alias && !strcmp(m->alias, name))
2990 return m;
2991 }
2992 return NULL;
2993 }
2994
2995 static QEMUMachine *find_default_machine(void)
2996 {
2997 QEMUMachine *m;
2998
2999 for(m = first_machine; m != NULL; m = m->next) {
3000 if (m->is_default) {
3001 return m;
3002 }
3003 }
3004 return NULL;
3005 }
3006
3007 /***********************************************************/
3008 /* main execution loop */
3009
3010 static void gui_update(void *opaque)
3011 {
3012 uint64_t interval = GUI_REFRESH_INTERVAL;
3013 DisplayState *ds = opaque;
3014 DisplayChangeListener *dcl = ds->listeners;
3015
3016 qemu_flush_coalesced_mmio_buffer();
3017 dpy_refresh(ds);
3018
3019 while (dcl != NULL) {
3020 if (dcl->gui_timer_interval &&
3021 dcl->gui_timer_interval < interval)
3022 interval = dcl->gui_timer_interval;
3023 dcl = dcl->next;
3024 }
3025 qemu_mod_timer(ds->gui_timer, interval + qemu_get_clock(rt_clock));
3026 }
3027
3028 static void nographic_update(void *opaque)
3029 {
3030 uint64_t interval = GUI_REFRESH_INTERVAL;
3031
3032 qemu_flush_coalesced_mmio_buffer();
3033 qemu_mod_timer(nographic_timer, interval + qemu_get_clock(rt_clock));
3034 }
3035
3036 struct vm_change_state_entry {
3037 VMChangeStateHandler *cb;
3038 void *opaque;
3039 QLIST_ENTRY (vm_change_state_entry) entries;
3040 };
3041
3042 static QLIST_HEAD(vm_change_state_head, vm_change_state_entry) vm_change_state_head;
3043
3044 VMChangeStateEntry *qemu_add_vm_change_state_handler(VMChangeStateHandler *cb,
3045 void *opaque)
3046 {
3047 VMChangeStateEntry *e;
3048
3049 e = qemu_mallocz(sizeof (*e));
3050
3051 e->cb = cb;
3052 e->opaque = opaque;
3053 QLIST_INSERT_HEAD(&vm_change_state_head, e, entries);
3054 return e;
3055 }
3056
3057 void qemu_del_vm_change_state_handler(VMChangeStateEntry *e)
3058 {
3059 QLIST_REMOVE (e, entries);
3060 qemu_free (e);
3061 }
3062
3063 static void vm_state_notify(int running, int reason)
3064 {
3065 VMChangeStateEntry *e;
3066
3067 for (e = vm_change_state_head.lh_first; e; e = e->entries.le_next) {
3068 e->cb(e->opaque, running, reason);
3069 }
3070 }
3071
3072 static void resume_all_vcpus(void);
3073 static void pause_all_vcpus(void);
3074
3075 void vm_start(void)
3076 {
3077 if (!vm_running) {
3078 cpu_enable_ticks();
3079 vm_running = 1;
3080 vm_state_notify(1, 0);
3081 qemu_rearm_alarm_timer(alarm_timer);
3082 resume_all_vcpus();
3083 }
3084 }
3085
3086 /* reset/shutdown handler */
3087
3088 typedef struct QEMUResetEntry {
3089 QTAILQ_ENTRY(QEMUResetEntry) entry;
3090 QEMUResetHandler *func;
3091 void *opaque;
3092 } QEMUResetEntry;
3093
3094 static QTAILQ_HEAD(reset_handlers, QEMUResetEntry) reset_handlers =
3095 QTAILQ_HEAD_INITIALIZER(reset_handlers);
3096 static int reset_requested;
3097 static int shutdown_requested;
3098 static int powerdown_requested;
3099 static int debug_requested;
3100 static int vmstop_requested;
3101
3102 int qemu_shutdown_requested(void)
3103 {
3104 int r = shutdown_requested;
3105 shutdown_requested = 0;
3106 return r;
3107 }
3108
3109 int qemu_reset_requested(void)
3110 {
3111 int r = reset_requested;
3112 reset_requested = 0;
3113 return r;
3114 }
3115
3116 int qemu_powerdown_requested(void)
3117 {
3118 int r = powerdown_requested;
3119 powerdown_requested = 0;
3120 return r;
3121 }
3122
3123 static int qemu_debug_requested(void)
3124 {
3125 int r = debug_requested;
3126 debug_requested = 0;
3127 return r;
3128 }
3129
3130 static int qemu_vmstop_requested(void)
3131 {
3132 int r = vmstop_requested;
3133 vmstop_requested = 0;
3134 return r;
3135 }
3136
3137 static void do_vm_stop(int reason)
3138 {
3139 if (vm_running) {
3140 cpu_disable_ticks();
3141 vm_running = 0;
3142 pause_all_vcpus();
3143 vm_state_notify(0, reason);
3144 }
3145 }
3146
3147 void qemu_register_reset(QEMUResetHandler *func, void *opaque)
3148 {
3149 QEMUResetEntry *re = qemu_mallocz(sizeof(QEMUResetEntry));
3150
3151 re->func = func;
3152 re->opaque = opaque;
3153 QTAILQ_INSERT_TAIL(&reset_handlers, re, entry);
3154 }
3155
3156 void qemu_unregister_reset(QEMUResetHandler *func, void *opaque)
3157 {
3158 QEMUResetEntry *re;
3159
3160 QTAILQ_FOREACH(re, &reset_handlers, entry) {
3161 if (re->func == func && re->opaque == opaque) {
3162 QTAILQ_REMOVE(&reset_handlers, re, entry);
3163 qemu_free(re);
3164 return;
3165 }
3166 }
3167 }
3168
3169 void qemu_system_reset(void)
3170 {
3171 QEMUResetEntry *re, *nre;
3172
3173 /* reset all devices */
3174 QTAILQ_FOREACH_SAFE(re, &reset_handlers, entry, nre) {
3175 re->func(re->opaque);
3176 }
3177 }
3178
3179 void qemu_system_reset_request(void)
3180 {
3181 if (no_reboot) {
3182 shutdown_requested = 1;
3183 } else {
3184 reset_requested = 1;
3185 }
3186 qemu_notify_event();
3187 }
3188
3189 void qemu_system_shutdown_request(void)
3190 {
3191 shutdown_requested = 1;
3192 qemu_notify_event();
3193 }
3194
3195 void qemu_system_powerdown_request(void)
3196 {
3197 powerdown_requested = 1;
3198 qemu_notify_event();
3199 }
3200
3201 #ifdef CONFIG_IOTHREAD
3202 static void qemu_system_vmstop_request(int reason)
3203 {
3204 vmstop_requested = reason;
3205 qemu_notify_event();
3206 }
3207 #endif
3208
3209 #ifndef _WIN32
3210 static int io_thread_fd = -1;
3211
3212 static void qemu_event_increment(void)
3213 {
3214 /* Write 8 bytes to be compatible with eventfd. */
3215 static uint64_t val = 1;
3216 ssize_t ret;
3217
3218 if (io_thread_fd == -1)
3219 return;
3220
3221 do {
3222 ret = write(io_thread_fd, &val, sizeof(val));
3223 } while (ret < 0 && errno == EINTR);
3224
3225 /* EAGAIN is fine, a read must be pending. */
3226 if (ret < 0 && errno != EAGAIN) {
3227 fprintf(stderr, "qemu_event_increment: write() filed: %s\n",
3228 strerror(errno));
3229 exit (1);
3230 }
3231 }
3232
3233 static void qemu_event_read(void *opaque)
3234 {
3235 int fd = (unsigned long)opaque;
3236 ssize_t len;
3237 char buffer[512];
3238
3239 /* Drain the notify pipe. For eventfd, only 8 bytes will be read. */
3240 do {
3241 len = read(fd, buffer, sizeof(buffer));
3242 } while ((len == -1 && errno == EINTR) || len == sizeof(buffer));
3243 }
3244
3245 static int qemu_event_init(void)
3246 {
3247 int err;
3248 int fds[2];
3249
3250 err = qemu_eventfd(fds);
3251 if (err == -1)
3252 return -errno;
3253
3254 err = fcntl_setfl(fds[0], O_NONBLOCK);
3255 if (err < 0)
3256 goto fail;
3257
3258 err = fcntl_setfl(fds[1], O_NONBLOCK);
3259 if (err < 0)
3260 goto fail;
3261
3262 qemu_set_fd_handler2(fds[0], NULL, qemu_event_read, NULL,
3263 (void *)(unsigned long)fds[0]);
3264
3265 io_thread_fd = fds[1];
3266 return 0;
3267
3268 fail:
3269 close(fds[0]);
3270 close(fds[1]);
3271 return err;
3272 }
3273 #else
3274 HANDLE qemu_event_handle;
3275
3276 static void dummy_event_handler(void *opaque)
3277 {
3278 }
3279
3280 static int qemu_event_init(void)
3281 {
3282 qemu_event_handle = CreateEvent(NULL, FALSE, FALSE, NULL);
3283 if (!qemu_event_handle) {
3284 fprintf(stderr, "Failed CreateEvent: %ld\n", GetLastError());
3285 return -1;
3286 }
3287 qemu_add_wait_object(qemu_event_handle, dummy_event_handler, NULL);
3288 return 0;
3289 }
3290
3291 static void qemu_event_increment(void)
3292 {
3293 if (!SetEvent(qemu_event_handle)) {
3294 fprintf(stderr, "qemu_event_increment: SetEvent failed: %ld\n",
3295 GetLastError());
3296 exit (1);
3297 }
3298 }
3299 #endif
3300
3301 static int cpu_can_run(CPUState *env)
3302 {
3303 if (env->stop)
3304 return 0;
3305 if (env->stopped)
3306 return 0;
3307 if (!vm_running)
3308 return 0;
3309 return 1;
3310 }
3311
3312 #ifndef CONFIG_IOTHREAD
3313 static int qemu_init_main_loop(void)
3314 {
3315 return qemu_event_init();
3316 }
3317
3318 void qemu_init_vcpu(void *_env)
3319 {
3320 CPUState *env = _env;
3321
3322 env->nr_cores = smp_cores;
3323 env->nr_threads = smp_threads;
3324 if (kvm_enabled())
3325 kvm_init_vcpu(env);
3326 return;
3327 }
3328
3329 int qemu_cpu_self(void *env)
3330 {
3331 return 1;
3332 }
3333
3334 static void resume_all_vcpus(void)
3335 {
3336 }
3337
3338 static void pause_all_vcpus(void)
3339 {
3340 }
3341
3342 void qemu_cpu_kick(void *env)
3343 {
3344 return;
3345 }
3346
3347 void qemu_notify_event(void)
3348 {
3349 CPUState *env = cpu_single_env;
3350
3351 if (env) {
3352 cpu_exit(env);
3353 }
3354 }
3355
3356 void qemu_mutex_lock_iothread(void) {}
3357 void qemu_mutex_unlock_iothread(void) {}
3358
3359 void vm_stop(int reason)
3360 {
3361 do_vm_stop(reason);
3362 }
3363
3364 #else /* CONFIG_IOTHREAD */
3365
3366 #include "qemu-thread.h"
3367
3368 QemuMutex qemu_global_mutex;
3369 static QemuMutex qemu_fair_mutex;
3370
3371 static QemuThread io_thread;
3372
3373 static QemuThread *tcg_cpu_thread;
3374 static QemuCond *tcg_halt_cond;
3375
3376 static int qemu_system_ready;
3377 /* cpu creation */
3378 static QemuCond qemu_cpu_cond;
3379 /* system init */
3380 static QemuCond qemu_system_cond;
3381 static QemuCond qemu_pause_cond;
3382
3383 static void block_io_signals(void);
3384 static void unblock_io_signals(void);
3385 static int tcg_has_work(void);
3386
3387 static int qemu_init_main_loop(void)
3388 {
3389 int ret;
3390
3391 ret = qemu_event_init();
3392 if (ret)
3393 return ret;
3394
3395 qemu_cond_init(&qemu_pause_cond);
3396 qemu_mutex_init(&qemu_fair_mutex);
3397 qemu_mutex_init(&qemu_global_mutex);
3398 qemu_mutex_lock(&qemu_global_mutex);
3399
3400 unblock_io_signals();
3401 qemu_thread_self(&io_thread);
3402
3403 return 0;
3404 }
3405
3406 static void qemu_wait_io_event(CPUState *env)
3407 {
3408 while (!tcg_has_work())
3409 qemu_cond_timedwait(env->halt_cond, &qemu_global_mutex, 1000);
3410
3411 qemu_mutex_unlock(&qemu_global_mutex);
3412
3413 /*
3414 * Users of qemu_global_mutex can be starved, having no chance
3415 * to acquire it since this path will get to it first.
3416 * So use another lock to provide fairness.
3417 */
3418 qemu_mutex_lock(&qemu_fair_mutex);
3419 qemu_mutex_unlock(&qemu_fair_mutex);
3420
3421 qemu_mutex_lock(&qemu_global_mutex);
3422 if (env->stop) {
3423 env->stop = 0;
3424 env->stopped = 1;
3425 qemu_cond_signal(&qemu_pause_cond);
3426 }
3427 }
3428
3429 static int qemu_cpu_exec(CPUState *env);
3430
3431 static void *kvm_cpu_thread_fn(void *arg)
3432 {
3433 CPUState *env = arg;
3434
3435 block_io_signals();
3436 qemu_thread_self(env->thread);
3437 if (kvm_enabled())
3438 kvm_init_vcpu(env);
3439
3440 /* signal CPU creation */
3441 qemu_mutex_lock(&qemu_global_mutex);
3442 env->created = 1;
3443 qemu_cond_signal(&qemu_cpu_cond);
3444
3445 /* and wait for machine initialization */
3446 while (!qemu_system_ready)
3447 qemu_cond_timedwait(&qemu_system_cond, &qemu_global_mutex, 100);
3448
3449 while (1) {
3450 if (cpu_can_run(env))
3451 qemu_cpu_exec(env);
3452 qemu_wait_io_event(env);
3453 }
3454
3455 return NULL;
3456 }
3457
3458 static void tcg_cpu_exec(void);
3459
3460 static void *tcg_cpu_thread_fn(void *arg)
3461 {
3462 CPUState *env = arg;
3463
3464 block_io_signals();
3465 qemu_thread_self(env->thread);
3466
3467 /* signal CPU creation */
3468 qemu_mutex_lock(&qemu_global_mutex);
3469 for (env = first_cpu; env != NULL; env = env->next_cpu)
3470 env->created = 1;
3471 qemu_cond_signal(&qemu_cpu_cond);
3472
3473 /* and wait for machine initialization */
3474 while (!qemu_system_ready)
3475 qemu_cond_timedwait(&qemu_system_cond, &qemu_global_mutex, 100);
3476
3477 while (1) {
3478 tcg_cpu_exec();
3479 qemu_wait_io_event(cur_cpu);
3480 }
3481
3482 return NULL;
3483 }
3484
3485 void qemu_cpu_kick(void *_env)
3486 {
3487 CPUState *env = _env;
3488 qemu_cond_broadcast(env->halt_cond);
3489 if (kvm_enabled())
3490 qemu_thread_signal(env->thread, SIGUSR1);
3491 }
3492
3493 int qemu_cpu_self(void *_env)
3494 {
3495 CPUState *env = _env;
3496 QemuThread this;
3497
3498 qemu_thread_self(&this);
3499
3500 return qemu_thread_equal(&this, env->thread);
3501 }
3502
3503 static void cpu_signal(int sig)
3504 {
3505 if (cpu_single_env)
3506 cpu_exit(cpu_single_env);
3507 }
3508
3509 static void block_io_signals(void)
3510 {
3511 sigset_t set;
3512 struct sigaction sigact;
3513
3514 sigemptyset(&set);
3515 sigaddset(&set, SIGUSR2);
3516 sigaddset(&set, SIGIO);
3517 sigaddset(&set, SIGALRM);
3518 pthread_sigmask(SIG_BLOCK, &set, NULL);
3519
3520 sigemptyset(&set);
3521 sigaddset(&set, SIGUSR1);
3522 pthread_sigmask(SIG_UNBLOCK, &set, NULL);
3523
3524 memset(&sigact, 0, sizeof(sigact));
3525 sigact.sa_handler = cpu_signal;
3526 sigaction(SIGUSR1, &sigact, NULL);
3527 }
3528
3529 static void unblock_io_signals(void)
3530 {
3531 sigset_t set;
3532
3533 sigemptyset(&set);
3534 sigaddset(&set, SIGUSR2);
3535 sigaddset(&set, SIGIO);
3536 sigaddset(&set, SIGALRM);
3537 pthread_sigmask(SIG_UNBLOCK, &set, NULL);
3538
3539 sigemptyset(&set);
3540 sigaddset(&set, SIGUSR1);
3541 pthread_sigmask(SIG_BLOCK, &set, NULL);
3542 }
3543
3544 static void qemu_signal_lock(unsigned int msecs)
3545 {
3546 qemu_mutex_lock(&qemu_fair_mutex);
3547
3548 while (qemu_mutex_trylock(&qemu_global_mutex)) {
3549 qemu_thread_signal(tcg_cpu_thread, SIGUSR1);
3550 if (!qemu_mutex_timedlock(&qemu_global_mutex, msecs))
3551 break;
3552 }
3553 qemu_mutex_unlock(&qemu_fair_mutex);
3554 }
3555
3556 void qemu_mutex_lock_iothread(void)
3557 {
3558 if (kvm_enabled()) {
3559 qemu_mutex_lock(&qemu_fair_mutex);
3560 qemu_mutex_lock(&qemu_global_mutex);
3561 qemu_mutex_unlock(&qemu_fair_mutex);
3562 } else
3563 qemu_signal_lock(100);
3564 }
3565
3566 void qemu_mutex_unlock_iothread(void)
3567 {
3568 qemu_mutex_unlock(&qemu_global_mutex);
3569 }
3570
3571 static int all_vcpus_paused(void)
3572 {
3573 CPUState *penv = first_cpu;
3574
3575 while (penv) {
3576 if (!penv->stopped)
3577 return 0;
3578 penv = (CPUState *)penv->next_cpu;
3579 }
3580
3581 return 1;
3582 }
3583
3584 static void pause_all_vcpus(void)
3585 {
3586 CPUState *penv = first_cpu;
3587
3588 while (penv) {
3589 penv->stop = 1;
3590 qemu_thread_signal(penv->thread, SIGUSR1);
3591 qemu_cpu_kick(penv);
3592 penv = (CPUState *)penv->next_cpu;
3593 }
3594
3595 while (!all_vcpus_paused()) {
3596 qemu_cond_timedwait(&qemu_pause_cond, &qemu_global_mutex, 100);
3597 penv = first_cpu;
3598 while (penv) {
3599 qemu_thread_signal(penv->thread, SIGUSR1);
3600 penv = (CPUState *)penv->next_cpu;
3601 }
3602 }
3603 }
3604
3605 static void resume_all_vcpus(void)
3606 {
3607 CPUState *penv = first_cpu;
3608
3609 while (penv) {
3610 penv->stop = 0;
3611 penv->stopped = 0;
3612 qemu_thread_signal(penv->thread, SIGUSR1);
3613 qemu_cpu_kick(penv);
3614 penv = (CPUState *)penv->next_cpu;
3615 }
3616 }
3617
3618 static void tcg_init_vcpu(void *_env)
3619 {
3620 CPUState *env = _env;
3621 /* share a single thread for all cpus with TCG */
3622 if (!tcg_cpu_thread) {
3623 env->thread = qemu_mallocz(sizeof(QemuThread));
3624 env->halt_cond = qemu_mallocz(sizeof(QemuCond));
3625 qemu_cond_init(env->halt_cond);
3626 qemu_thread_create(env->thread, tcg_cpu_thread_fn, env);
3627 while (env->created == 0)
3628 qemu_cond_timedwait(&qemu_cpu_cond, &qemu_global_mutex, 100);
3629 tcg_cpu_thread = env->thread;
3630 tcg_halt_cond = env->halt_cond;
3631 } else {
3632 env->thread = tcg_cpu_thread;
3633 env->halt_cond = tcg_halt_cond;
3634 }
3635 }
3636
3637 static void kvm_start_vcpu(CPUState *env)
3638 {
3639 env->thread = qemu_mallocz(sizeof(QemuThread));
3640 env->halt_cond = qemu_mallocz(sizeof(QemuCond));
3641 qemu_cond_init(env->halt_cond);
3642 qemu_thread_create(env->thread, kvm_cpu_thread_fn, env);
3643 while (env->created == 0)
3644 qemu_cond_timedwait(&qemu_cpu_cond, &qemu_global_mutex, 100);
3645 }
3646
3647 void qemu_init_vcpu(void *_env)
3648 {
3649 CPUState *env = _env;
3650
3651 env->nr_cores = smp_cores;
3652 env->nr_threads = smp_threads;
3653 if (kvm_enabled())
3654 kvm_start_vcpu(env);
3655 else
3656 tcg_init_vcpu(env);
3657 }
3658
3659 void qemu_notify_event(void)
3660 {
3661 qemu_event_increment();
3662 }
3663
3664 void vm_stop(int reason)
3665 {
3666 QemuThread me;
3667 qemu_thread_self(&me);
3668
3669 if (!qemu_thread_equal(&me, &io_thread)) {
3670 qemu_system_vmstop_request(reason);
3671 /*
3672 * FIXME: should not return to device code in case
3673 * vm_stop() has been requested.
3674 */
3675 if (cpu_single_env) {
3676 cpu_exit(cpu_single_env);
3677 cpu_single_env->stop = 1;
3678 }
3679 return;
3680 }
3681 do_vm_stop(reason);
3682 }
3683
3684 #endif
3685
3686
3687 #ifdef _WIN32
3688 static void host_main_loop_wait(int *timeout)
3689 {
3690 int ret, ret2, i;
3691 PollingEntry *pe;
3692
3693
3694 /* XXX: need to suppress polling by better using win32 events */
3695 ret = 0;
3696 for(pe = first_polling_entry; pe != NULL; pe = pe->next) {
3697 ret |= pe->func(pe->opaque);
3698 }
3699 if (ret == 0) {
3700 int err;
3701 WaitObjects *w = &wait_objects;
3702
3703 ret = WaitForMultipleObjects(w->num, w->events, FALSE, *timeout);
3704 if (WAIT_OBJECT_0 + 0 <= ret && ret <= WAIT_OBJECT_0 + w->num - 1) {
3705 if (w->func[ret - WAIT_OBJECT_0])
3706 w->func[ret - WAIT_OBJECT_0](w->opaque[ret - WAIT_OBJECT_0]);
3707
3708 /* Check for additional signaled events */
3709 for(i = (ret - WAIT_OBJECT_0 + 1); i < w->num; i++) {
3710
3711 /* Check if event is signaled */
3712 ret2 = WaitForSingleObject(w->events[i], 0);
3713 if(ret2 == WAIT_OBJECT_0) {
3714 if (w->func[i])
3715 w->func[i](w->opaque[i]);
3716 } else if (ret2 == WAIT_TIMEOUT) {
3717 } else {
3718 err = GetLastError();
3719 fprintf(stderr, "WaitForSingleObject error %d %d\n", i, err);
3720 }
3721 }
3722 } else if (ret == WAIT_TIMEOUT) {
3723 } else {
3724 err = GetLastError();
3725 fprintf(stderr, "WaitForMultipleObjects error %d %d\n", ret, err);
3726 }
3727 }
3728
3729 *timeout = 0;
3730 }
3731 #else
3732 static void host_main_loop_wait(int *timeout)
3733 {
3734 }
3735 #endif
3736
3737 void main_loop_wait(int timeout)
3738 {
3739 IOHandlerRecord *ioh;
3740 fd_set rfds, wfds, xfds;
3741 int ret, nfds;
3742 struct timeval tv;
3743
3744 qemu_bh_update_timeout(&timeout);
3745
3746 host_main_loop_wait(&timeout);
3747
3748 /* poll any events */
3749 /* XXX: separate device handlers from system ones */
3750 nfds = -1;
3751 FD_ZERO(&rfds);
3752 FD_ZERO(&wfds);
3753 FD_ZERO(&xfds);
3754 for(ioh = first_io_handler; ioh != NULL; ioh = ioh->next) {
3755 if (ioh->deleted)
3756 continue;
3757 if (ioh->fd_read &&
3758 (!ioh->fd_read_poll ||
3759 ioh->fd_read_poll(ioh->opaque) != 0)) {
3760 FD_SET(ioh->fd, &rfds);
3761 if (ioh->fd > nfds)
3762 nfds = ioh->fd;
3763 }
3764 if (ioh->fd_write) {
3765 FD_SET(ioh->fd, &wfds);
3766 if (ioh->fd > nfds)
3767 nfds = ioh->fd;
3768 }
3769 }
3770
3771 tv.tv_sec = timeout / 1000;
3772 tv.tv_usec = (timeout % 1000) * 1000;
3773
3774 slirp_select_fill(&nfds, &rfds, &wfds, &xfds);
3775
3776 qemu_mutex_unlock_iothread();
3777 ret = select(nfds + 1, &rfds, &wfds, &xfds, &tv);
3778 qemu_mutex_lock_iothread();
3779 if (ret > 0) {
3780 IOHandlerRecord **pioh;
3781
3782 for(ioh = first_io_handler; ioh != NULL; ioh = ioh->next) {
3783 if (!ioh->deleted && ioh->fd_read && FD_ISSET(ioh->fd, &rfds)) {
3784 ioh->fd_read(ioh->opaque);
3785 }
3786 if (!ioh->deleted && ioh->fd_write && FD_ISSET(ioh->fd, &wfds)) {
3787 ioh->fd_write(ioh->opaque);
3788 }
3789 }
3790
3791 /* remove deleted IO handlers */
3792 pioh = &first_io_handler;
3793 while (*pioh) {
3794 ioh = *pioh;
3795 if (ioh->deleted) {
3796 *pioh = ioh->next;
3797 qemu_free(ioh);
3798 } else
3799 pioh = &ioh->next;
3800 }
3801 }
3802
3803 slirp_select_poll(&rfds, &wfds, &xfds, (ret < 0));
3804
3805 /* rearm timer, if not periodic */
3806 if (alarm_timer->flags & ALARM_FLAG_EXPIRED) {
3807 alarm_timer->flags &= ~ALARM_FLAG_EXPIRED;
3808 qemu_rearm_alarm_timer(alarm_timer);
3809 }
3810
3811 /* vm time timers */
3812 if (vm_running) {
3813 if (!cur_cpu || likely(!(cur_cpu->singlestep_enabled & SSTEP_NOTIMER)))
3814 qemu_run_timers(&active_timers[QEMU_CLOCK_VIRTUAL],
3815 qemu_get_clock(vm_clock));
3816 }
3817
3818 /* real time timers */
3819 qemu_run_timers(&active_timers[QEMU_CLOCK_REALTIME],
3820 qemu_get_clock(rt_clock));
3821
3822 qemu_run_timers(&active_timers[QEMU_CLOCK_HOST],
3823 qemu_get_clock(host_clock));
3824
3825 /* Check bottom-halves last in case any of the earlier events triggered
3826 them. */
3827 qemu_bh_poll();
3828
3829 }
3830
3831 static int qemu_cpu_exec(CPUState *env)
3832 {
3833 int ret;
3834 #ifdef CONFIG_PROFILER
3835 int64_t ti;
3836 #endif
3837
3838 #ifdef CONFIG_PROFILER
3839 ti = profile_getclock();
3840 #endif
3841 if (use_icount) {
3842 int64_t count;
3843 int decr;
3844 qemu_icount -= (env->icount_decr.u16.low + env->icount_extra);
3845 env->icount_decr.u16.low = 0;
3846 env->icount_extra = 0;
3847 count = qemu_next_deadline();
3848 count = (count + (1 << icount_time_shift) - 1)
3849 >> icount_time_shift;
3850 qemu_icount += count;
3851 decr = (count > 0xffff) ? 0xffff : count;
3852 count -= decr;
3853 env->icount_decr.u16.low = decr;
3854 env->icount_extra = count;
3855 }
3856 ret = cpu_exec(env);
3857 #ifdef CONFIG_PROFILER
3858 qemu_time += profile_getclock() - ti;
3859 #endif
3860 if (use_icount) {
3861 /* Fold pending instructions back into the
3862 instruction counter, and clear the interrupt flag. */
3863 qemu_icount -= (env->icount_decr.u16.low
3864 + env->icount_extra);
3865 env->icount_decr.u32 = 0;
3866 env->icount_extra = 0;
3867 }
3868 return ret;
3869 }
3870
3871 static void tcg_cpu_exec(void)
3872 {
3873 int ret = 0;
3874
3875 if (next_cpu == NULL)
3876 next_cpu = first_cpu;
3877 for (; next_cpu != NULL; next_cpu = next_cpu->next_cpu) {
3878 CPUState *env = cur_cpu = next_cpu;
3879
3880 if (timer_alarm_pending) {
3881 timer_alarm_pending = 0;
3882 break;
3883 }
3884 if (cpu_can_run(env))
3885 ret = qemu_cpu_exec(env);
3886 else if (env->stop)
3887 break;
3888
3889 if (ret == EXCP_DEBUG) {
3890 gdb_set_stop_cpu(env);
3891 debug_requested = 1;
3892 break;
3893 }
3894 }
3895 }
3896
3897 static int cpu_has_work(CPUState *env)
3898 {
3899 if (env->stop)
3900 return 1;
3901 if (env->stopped)
3902 return 0;
3903 if (!env->halted)
3904 return 1;
3905 if (qemu_cpu_has_work(env))
3906 return 1;
3907 return 0;
3908 }
3909
3910 static int tcg_has_work(void)
3911 {
3912 CPUState *env;
3913
3914 for (env = first_cpu; env != NULL; env = env->next_cpu)
3915 if (cpu_has_work(env))
3916 return 1;
3917 return 0;
3918 }
3919
3920 static int qemu_calculate_timeout(void)
3921 {
3922 #ifndef CONFIG_IOTHREAD
3923 int timeout;
3924
3925 if (!vm_running)
3926 timeout = 5000;
3927 else if (tcg_has_work())
3928 timeout = 0;
3929 else if (!use_icount)
3930 timeout = 5000;
3931 else {
3932 /* XXX: use timeout computed from timers */
3933 int64_t add;
3934 int64_t delta;
3935 /* Advance virtual time to the next event. */
3936 if (use_icount == 1) {
3937 /* When not using an adaptive execution frequency
3938 we tend to get badly out of sync with real time,
3939 so just delay for a reasonable amount of time. */
3940 delta = 0;
3941 } else {
3942 delta = cpu_get_icount() - cpu_get_clock();
3943 }
3944 if (delta > 0) {
3945 /* If virtual time is ahead of real time then just
3946 wait for IO. */
3947 timeout = (delta / 1000000) + 1;
3948 } else {
3949 /* Wait for either IO to occur or the next
3950 timer event. */
3951 add = qemu_next_deadline();
3952 /* We advance the timer before checking for IO.
3953 Limit the amount we advance so that early IO
3954 activity won't get the guest too far ahead. */
3955 if (add > 10000000)
3956 add = 10000000;
3957 delta += add;
3958 add = (add + (1 << icount_time_shift) - 1)
3959 >> icount_time_shift;
3960 qemu_icount += add;
3961 timeout = delta / 1000000;
3962 if (timeout < 0)
3963 timeout = 0;
3964 }
3965 }
3966
3967 return timeout;
3968 #else /* CONFIG_IOTHREAD */
3969 return 1000;
3970 #endif
3971 }
3972
3973 static int vm_can_run(void)
3974 {
3975 if (powerdown_requested)
3976 return 0;
3977 if (reset_requested)
3978 return 0;
3979 if (shutdown_requested)
3980 return 0;
3981 if (debug_requested)
3982 return 0;
3983 return 1;
3984 }
3985
3986 qemu_irq qemu_system_powerdown;
3987
3988 static void main_loop(void)
3989 {
3990 int r;
3991
3992 #ifdef CONFIG_IOTHREAD
3993 qemu_system_ready = 1;
3994 qemu_cond_broadcast(&qemu_system_cond);
3995 #endif
3996
3997 for (;;) {
3998 do {
3999 #ifdef CONFIG_PROFILER
4000 int64_t ti;
4001 #endif
4002 #ifndef CONFIG_IOTHREAD
4003 tcg_cpu_exec();
4004 #endif
4005 #ifdef CONFIG_PROFILER
4006 ti = profile_getclock();
4007 #endif
4008 main_loop_wait(qemu_calculate_timeout());
4009 #ifdef CONFIG_PROFILER
4010 dev_time += profile_getclock() - ti;
4011 #endif
4012 } while (vm_can_run());
4013
4014 if (qemu_debug_requested()) {
4015 monitor_protocol_event(QEVENT_DEBUG, NULL);
4016 vm_stop(EXCP_DEBUG);
4017 }
4018 if (qemu_shutdown_requested()) {
4019 monitor_protocol_event(QEVENT_SHUTDOWN, NULL);
4020 if (no_shutdown) {
4021 vm_stop(0);
4022 no_shutdown = 0;
4023 } else
4024 break;
4025 }
4026 if (qemu_reset_requested()) {
4027 monitor_protocol_event(QEVENT_RESET, NULL);
4028 pause_all_vcpus();
4029 qemu_system_reset();
4030 resume_all_vcpus();
4031 }
4032 if (qemu_powerdown_requested()) {
4033 monitor_protocol_event(QEVENT_POWERDOWN, NULL);
4034 qemu_irq_raise(qemu_system_powerdown);
4035 }
4036 if ((r = qemu_vmstop_requested())) {
4037 monitor_protocol_event(QEVENT_STOP, NULL);
4038 vm_stop(r);
4039 }
4040 }
4041 pause_all_vcpus();
4042 }
4043
4044 static void version(void)
4045 {
4046 printf("QEMU PC emulator version " QEMU_VERSION QEMU_PKGVERSION ", Copyright (c) 2003-2008 Fabrice Bellard\n");
4047 }
4048
4049 static void help(int exitcode)
4050 {
4051 const char *options_help =
4052 #define DEF(option, opt_arg, opt_enum, opt_help) \
4053 opt_help
4054 #define DEFHEADING(text) stringify(text) "\n"
4055 #include "qemu-options.h"
4056 #undef DEF
4057 #undef DEFHEADING
4058 #undef GEN_DOCS
4059 ;
4060 version();
4061 printf("usage: %s [options] [disk_image]\n"
4062 "\n"
4063 "'disk_image' is a raw hard image image for IDE hard disk 0\n"
4064 "\n"
4065 "%s\n"
4066 "During emulation, the following keys are useful:\n"
4067 "ctrl-alt-f toggle full screen\n"
4068 "ctrl-alt-n switch to virtual console 'n'\n"
4069 "ctrl-alt toggle mouse and keyboard grab\n"
4070 "\n"
4071 "When using -nographic, press 'ctrl-a h' to get some help.\n",
4072 "qemu",
4073 options_help);
4074 exit(exitcode);
4075 }
4076
4077 #define HAS_ARG 0x0001
4078
4079 enum {
4080 #define DEF(option, opt_arg, opt_enum, opt_help) \
4081 opt_enum,
4082 #define DEFHEADING(text)
4083 #include "qemu-options.h"
4084 #undef DEF
4085 #undef DEFHEADING
4086 #undef GEN_DOCS
4087 };
4088
4089 typedef struct QEMUOption {
4090 const char *name;
4091 int flags;
4092 int index;
4093 } QEMUOption;
4094
4095 static const QEMUOption qemu_options[] = {
4096 { "h", 0, QEMU_OPTION_h },
4097 #define DEF(option, opt_arg, opt_enum, opt_help) \
4098 { option, opt_arg, opt_enum },
4099 #define DEFHEADING(text)
4100 #include "qemu-options.h"
4101 #undef DEF
4102 #undef DEFHEADING
4103 #undef GEN_DOCS
4104 { NULL },
4105 };
4106
4107 #ifdef HAS_AUDIO
4108 struct soundhw soundhw[] = {
4109 #ifdef HAS_AUDIO_CHOICE
4110 #if defined(TARGET_I386) || defined(TARGET_MIPS)
4111 {
4112 "pcspk",
4113 "PC speaker",
4114 0,
4115 1,
4116 { .init_isa = pcspk_audio_init }
4117 },
4118 #endif
4119
4120 #ifdef CONFIG_SB16
4121 {
4122 "sb16",
4123 "Creative Sound Blaster 16",
4124 0,
4125 1,
4126 { .init_isa = SB16_init }
4127 },
4128 #endif
4129
4130 #ifdef CONFIG_CS4231A
4131 {
4132 "cs4231a",
4133 "CS4231A",
4134 0,
4135 1,
4136 { .init_isa = cs4231a_init }
4137 },
4138 #endif
4139
4140 #ifdef CONFIG_ADLIB
4141 {
4142 "adlib",
4143 #ifdef HAS_YMF262
4144 "Yamaha YMF262 (OPL3)",
4145 #else
4146 "Yamaha YM3812 (OPL2)",
4147 #endif
4148 0,
4149 1,
4150 { .init_isa = Adlib_init }
4151 },
4152 #endif
4153
4154 #ifdef CONFIG_GUS
4155 {
4156 "gus",
4157 "Gravis Ultrasound GF1",
4158 0,
4159 1,
4160 { .init_isa = GUS_init }
4161 },
4162 #endif
4163
4164 #ifdef CONFIG_AC97
4165 {
4166 "ac97",
4167 "Intel 82801AA AC97 Audio",
4168 0,
4169 0,
4170 { .init_pci = ac97_init }
4171 },
4172 #endif
4173
4174 #ifdef CONFIG_ES1370
4175 {
4176 "es1370",
4177 "ENSONIQ AudioPCI ES1370",
4178 0,
4179 0,
4180 { .init_pci = es1370_init }
4181 },
4182 #endif
4183
4184 #endif /* HAS_AUDIO_CHOICE */
4185
4186 { NULL, NULL, 0, 0, { NULL } }
4187 };
4188
4189 static void select_soundhw (const char *optarg)
4190 {
4191 struct soundhw *c;
4192
4193 if (*optarg == '?') {
4194 show_valid_cards:
4195
4196 printf ("Valid sound card names (comma separated):\n");
4197 for (c = soundhw; c->name; ++c) {
4198 printf ("%-11s %s\n", c->name, c->descr);
4199 }
4200 printf ("\n-soundhw all will enable all of the above\n");
4201 exit (*optarg != '?');
4202 }
4203 else {
4204 size_t l;
4205 const char *p;
4206 char *e;
4207 int bad_card = 0;
4208
4209 if (!strcmp (optarg, "all")) {
4210 for (c = soundhw; c->name; ++c) {
4211 c->enabled = 1;
4212 }
4213 return;
4214 }
4215
4216 p = optarg;
4217 while (*p) {
4218 e = strchr (p, ',');
4219 l = !e ? strlen (p) : (size_t) (e - p);
4220
4221 for (c = soundhw; c->name; ++c) {
4222 if (!strncmp (c->name, p, l) && !c->name[l]) {
4223 c->enabled = 1;
4224 break;
4225 }
4226 }
4227
4228 if (!c->name) {
4229 if (l > 80) {
4230 fprintf (stderr,
4231 "Unknown sound card name (too big to show)\n");
4232 }
4233 else {
4234 fprintf (stderr, "Unknown sound card name `%.*s'\n",
4235 (int) l, p);
4236 }
4237 bad_card = 1;
4238 }
4239 p += l + (e != NULL);
4240 }
4241
4242 if (bad_card)
4243 goto show_valid_cards;
4244 }
4245 }
4246 #endif
4247
4248 static void select_vgahw (const char *p)
4249 {
4250 const char *opts;
4251
4252 default_vga = 0;
4253 vga_interface_type = VGA_NONE;
4254 if (strstart(p, "std", &opts)) {
4255 vga_interface_type = VGA_STD;
4256 } else if (strstart(p, "cirrus", &opts)) {
4257 vga_interface_type = VGA_CIRRUS;
4258 } else if (strstart(p, "vmware", &opts)) {
4259 vga_interface_type = VGA_VMWARE;
4260 } else if (strstart(p, "xenfb", &opts)) {
4261 vga_interface_type = VGA_XENFB;
4262 } else if (!strstart(p, "none", &opts)) {
4263 invalid_vga:
4264 fprintf(stderr, "Unknown vga type: %s\n", p);
4265 exit(1);
4266 }
4267 while (*opts) {
4268 const char *nextopt;
4269
4270 if (strstart(opts, ",retrace=", &nextopt)) {
4271 opts = nextopt;
4272 if (strstart(opts, "dumb", &nextopt))
4273 vga_retrace_method = VGA_RETRACE_DUMB;
4274 else if (strstart(opts, "precise", &nextopt))
4275 vga_retrace_method = VGA_RETRACE_PRECISE;
4276 else goto invalid_vga;
4277 } else goto invalid_vga;
4278 opts = nextopt;
4279 }
4280 }
4281
4282 #ifdef TARGET_I386
4283 static int balloon_parse(const char *arg)
4284 {
4285 QemuOpts *opts;
4286
4287 if (strcmp(arg, "none") == 0) {
4288 return 0;
4289 }
4290
4291 if (!strncmp(arg, "virtio", 6)) {
4292 if (arg[6] == ',') {
4293 /* have params -> parse them */
4294 opts = qemu_opts_parse(&qemu_device_opts, arg+7, NULL);
4295 if (!opts)
4296 return -1;
4297 } else {
4298 /* create empty opts */
4299 opts = qemu_opts_create(&qemu_device_opts, NULL, 0);
4300 }
4301 qemu_opt_set(opts, "driver", "virtio-balloon-pci");
4302 return 0;
4303 }
4304
4305 return -1;
4306 }
4307 #endif
4308
4309 #ifdef _WIN32
4310 static BOOL WINAPI qemu_ctrl_handler(DWORD type)
4311 {
4312 exit(STATUS_CONTROL_C_EXIT);
4313 return TRUE;
4314 }
4315 #endif
4316
4317 int qemu_uuid_parse(const char *str, uint8_t *uuid)
4318 {
4319 int ret;
4320
4321 if(strlen(str) != 36)
4322 return -1;
4323
4324 ret = sscanf(str, UUID_FMT, &uuid[0], &uuid[1], &uuid[2], &uuid[3],
4325 &uuid[4], &uuid[5], &uuid[6], &uuid[7], &uuid[8], &uuid[9],
4326 &uuid[10], &uuid[11], &uuid[12], &uuid[13], &uuid[14], &uuid[15]);
4327
4328 if(ret != 16)
4329 return -1;
4330
4331 #ifdef TARGET_I386
4332 smbios_add_field(1, offsetof(struct smbios_type_1, uuid), 16, uuid);
4333 #endif
4334
4335 return 0;
4336 }
4337
4338 #ifndef _WIN32
4339
4340 static void termsig_handler(int signal)
4341 {
4342 qemu_system_shutdown_request();
4343 }
4344
4345 static void sigchld_handler(int signal)
4346 {
4347 waitpid(-1, NULL, WNOHANG);
4348 }
4349
4350 static void sighandler_setup(void)
4351 {
4352 struct sigaction act;
4353
4354 memset(&act, 0, sizeof(act));
4355 act.sa_handler = termsig_handler;
4356 sigaction(SIGINT, &act, NULL);
4357 sigaction(SIGHUP, &act, NULL);
4358 sigaction(SIGTERM, &act, NULL);
4359
4360 act.sa_handler = sigchld_handler;
4361 act.sa_flags = SA_NOCLDSTOP;
4362 sigaction(SIGCHLD, &act, NULL);
4363 }
4364
4365 #endif
4366
4367 #ifdef _WIN32
4368 /* Look for support files in the same directory as the executable. */
4369 static char *find_datadir(const char *argv0)
4370 {
4371 char *p;
4372 char buf[MAX_PATH];
4373 DWORD len;
4374
4375 len = GetModuleFileName(NULL, buf, sizeof(buf) - 1);
4376 if (len == 0) {
4377 return NULL;
4378 }
4379
4380 buf[len] = 0;
4381 p = buf + len - 1;
4382 while (p != buf && *p != '\\')
4383 p--;
4384 *p = 0;
4385 if (access(buf, R_OK) == 0) {
4386 return qemu_strdup(buf);
4387 }
4388 return NULL;
4389 }
4390 #else /* !_WIN32 */
4391
4392 /* Find a likely location for support files using the location of the binary.
4393 For installed binaries this will be "$bindir/../share/qemu". When
4394 running from the build tree this will be "$bindir/../pc-bios". */
4395 #define SHARE_SUFFIX "/share/qemu"
4396 #define BUILD_SUFFIX "/pc-bios"
4397 static char *find_datadir(const char *argv0)
4398 {
4399 char *dir;
4400 char *p = NULL;
4401 char *res;
4402 char buf[PATH_MAX];
4403 size_t max_len;
4404
4405 #if defined(__linux__)
4406 {
4407 int len;
4408 len = readlink("/proc/self/exe", buf, sizeof(buf) - 1);
4409 if (len > 0) {
4410 buf[len] = 0;
4411 p = buf;
4412 }
4413 }
4414 #elif defined(__FreeBSD__)
4415 {
4416 int len;
4417 len = readlink("/proc/curproc/file", buf, sizeof(buf) - 1);
4418 if (len > 0) {
4419 buf[len] = 0;
4420 p = buf;
4421 }
4422 }
4423 #endif
4424 /* If we don't have any way of figuring out the actual executable
4425 location then try argv[0]. */
4426 if (!p) {
4427 p = realpath(argv0, buf);
4428 if (!p) {
4429 return NULL;
4430 }
4431 }
4432 dir = dirname(p);
4433 dir = dirname(dir);
4434
4435 max_len = strlen(dir) +
4436 MAX(strlen(SHARE_SUFFIX), strlen(BUILD_SUFFIX)) + 1;
4437 res = qemu_mallocz(max_len);
4438 snprintf(res, max_len, "%s%s", dir, SHARE_SUFFIX);
4439 if (access(res, R_OK)) {
4440 snprintf(res, max_len, "%s%s", dir, BUILD_SUFFIX);
4441 if (access(res, R_OK)) {
4442 qemu_free(res);
4443 res = NULL;
4444 }
4445 }
4446
4447 return res;
4448 }
4449 #undef SHARE_SUFFIX
4450 #undef BUILD_SUFFIX
4451 #endif
4452
4453 char *qemu_find_file(int type, const char *name)
4454 {
4455 int len;
4456 const char *subdir;
4457 char *buf;
4458
4459 /* If name contains path separators then try it as a straight path. */
4460 if ((strchr(name, '/') || strchr(name, '\\'))
4461 && access(name, R_OK) == 0) {
4462 return qemu_strdup(name);
4463 }
4464 switch (type) {
4465 case QEMU_FILE_TYPE_BIOS:
4466 subdir = "";
4467 break;
4468 case QEMU_FILE_TYPE_KEYMAP:
4469 subdir = "keymaps/";
4470 break;
4471 default:
4472 abort();
4473 }
4474 len = strlen(data_dir) + strlen(name) + strlen(subdir) + 2;
4475 buf = qemu_mallocz(len);
4476 snprintf(buf, len, "%s/%s%s", data_dir, subdir, name);
4477 if (access(buf, R_OK)) {
4478 qemu_free(buf);
4479 return NULL;
4480 }
4481 return buf;
4482 }
4483
4484 static int device_help_func(QemuOpts *opts, void *opaque)
4485 {
4486 return qdev_device_help(opts);
4487 }
4488
4489 static int device_init_func(QemuOpts *opts, void *opaque)
4490 {
4491 DeviceState *dev;
4492
4493 dev = qdev_device_add(opts);
4494 if (!dev)
4495 return -1;
4496 return 0;
4497 }
4498
4499 static int chardev_init_func(QemuOpts *opts, void *opaque)
4500 {
4501 CharDriverState *chr;
4502
4503 chr = qemu_chr_open_opts(opts, NULL);
4504 if (!chr)
4505 return -1;
4506 return 0;
4507 }
4508
4509 static int mon_init_func(QemuOpts *opts, void *opaque)
4510 {
4511 CharDriverState *chr;
4512 const char *chardev;
4513 const char *mode;
4514 int flags;
4515
4516 mode = qemu_opt_get(opts, "mode");
4517 if (mode == NULL) {
4518 mode = "readline";
4519 }
4520 if (strcmp(mode, "readline") == 0) {
4521 flags = MONITOR_USE_READLINE;
4522 } else if (strcmp(mode, "control") == 0) {
4523 flags = MONITOR_USE_CONTROL;
4524 } else {
4525 fprintf(stderr, "unknown monitor mode \"%s\"\n", mode);
4526 exit(1);
4527 }
4528
4529 if (qemu_opt_get_bool(opts, "default", 0))
4530 flags |= MONITOR_IS_DEFAULT;
4531
4532 chardev = qemu_opt_get(opts, "chardev");
4533 chr = qemu_chr_find(chardev);
4534 if (chr == NULL) {
4535 fprintf(stderr, "chardev \"%s\" not found\n", chardev);
4536 exit(1);
4537 }
4538
4539 monitor_init(chr, flags);
4540 return 0;
4541 }
4542
4543 static void monitor_parse(const char *optarg, const char *mode)
4544 {
4545 static int monitor_device_index = 0;
4546 QemuOpts *opts;
4547 const char *p;
4548 char label[32];
4549 int def = 0;
4550
4551 if (strstart(optarg, "chardev:", &p)) {
4552 snprintf(label, sizeof(label), "%s", p);
4553 } else {
4554 if (monitor_device_index) {
4555 snprintf(label, sizeof(label), "monitor%d",
4556 monitor_device_index);
4557 } else {
4558 snprintf(label, sizeof(label), "monitor");
4559 def = 1;
4560 }
4561 opts = qemu_chr_parse_compat(label, optarg);
4562 if (!opts) {
4563 fprintf(stderr, "parse error: %s\n", optarg);
4564 exit(1);
4565 }
4566 }
4567
4568 opts = qemu_opts_create(&qemu_mon_opts, label, 1);
4569 if (!opts) {
4570 fprintf(stderr, "duplicate chardev: %s\n", label);
4571 exit(1);
4572 }
4573 qemu_opt_set(opts, "mode", mode);
4574 qemu_opt_set(opts, "chardev", label);
4575 if (def)
4576 qemu_opt_set(opts, "default", "on");
4577 monitor_device_index++;
4578 }
4579
4580 struct device_config {
4581 enum {
4582 DEV_USB, /* -usbdevice */
4583 DEV_BT, /* -bt */
4584 DEV_SERIAL, /* -serial */
4585 DEV_PARALLEL, /* -parallel */
4586 DEV_VIRTCON, /* -virtioconsole */
4587 DEV_DEBUGCON, /* -debugcon */
4588 } type;
4589 const char *cmdline;
4590 QTAILQ_ENTRY(device_config) next;
4591 };
4592 QTAILQ_HEAD(, device_config) device_configs = QTAILQ_HEAD_INITIALIZER(device_configs);
4593
4594 static void add_device_config(int type, const char *cmdline)
4595 {
4596 struct device_config *conf;
4597
4598 conf = qemu_mallocz(sizeof(*conf));
4599 conf->type = type;
4600 conf->cmdline = cmdline;
4601 QTAILQ_INSERT_TAIL(&device_configs, conf, next);
4602 }
4603
4604 static int foreach_device_config(int type, int (*func)(const char *cmdline))
4605 {
4606 struct device_config *conf;
4607 int rc;
4608
4609 QTAILQ_FOREACH(conf, &device_configs, next) {
4610 if (conf->type != type)
4611 continue;
4612 rc = func(conf->cmdline);
4613 if (0 != rc)
4614 return rc;
4615 }
4616 return 0;
4617 }
4618
4619 static int serial_parse(const char *devname)
4620 {
4621 static int index = 0;
4622 char label[32];
4623
4624 if (strcmp(devname, "none") == 0)
4625 return 0;
4626 if (index == MAX_SERIAL_PORTS) {
4627 fprintf(stderr, "qemu: too many serial ports\n");
4628 exit(1);
4629 }
4630 snprintf(label, sizeof(label), "serial%d", index);
4631 serial_hds[index] = qemu_chr_open(label, devname, NULL);
4632 if (!serial_hds[index]) {
4633 fprintf(stderr, "qemu: could not open serial device '%s': %s\n",
4634 devname, strerror(errno));
4635 return -1;
4636 }
4637 index++;
4638 return 0;
4639 }
4640
4641 static int parallel_parse(const char *devname)
4642 {
4643 static int index = 0;
4644 char label[32];
4645
4646 if (strcmp(devname, "none") == 0)
4647 return 0;
4648 if (index == MAX_PARALLEL_PORTS) {
4649 fprintf(stderr, "qemu: too many parallel ports\n");
4650 exit(1);
4651 }
4652 snprintf(label, sizeof(label), "parallel%d", index);
4653 parallel_hds[index] = qemu_chr_open(label, devname, NULL);
4654 if (!parallel_hds[index]) {
4655 fprintf(stderr, "qemu: could not open parallel device '%s': %s\n",
4656 devname, strerror(errno));
4657 return -1;
4658 }
4659 index++;
4660 return 0;
4661 }
4662
4663 static int virtcon_parse(const char *devname)
4664 {
4665 static int index = 0;
4666 char label[32];
4667 QemuOpts *bus_opts, *dev_opts;
4668
4669 if (strcmp(devname, "none") == 0)
4670 return 0;
4671 if (index == MAX_VIRTIO_CONSOLES) {
4672 fprintf(stderr, "qemu: too many virtio consoles\n");
4673 exit(1);
4674 }
4675
4676 bus_opts = qemu_opts_create(&qemu_device_opts, NULL, 0);
4677 qemu_opt_set(bus_opts, "driver", "virtio-serial");
4678
4679 dev_opts = qemu_opts_create(&qemu_device_opts, NULL, 0);
4680 qemu_opt_set(dev_opts, "driver", "virtconsole");
4681
4682 snprintf(label, sizeof(label), "virtcon%d", index);
4683 virtcon_hds[index] = qemu_chr_open(label, devname, NULL);
4684 if (!virtcon_hds[index]) {
4685 fprintf(stderr, "qemu: could not open virtio console '%s': %s\n",
4686 devname, strerror(errno));
4687 return -1;
4688 }
4689 qemu_opt_set(dev_opts, "chardev", label);
4690
4691 index++;
4692 return 0;
4693 }
4694
4695 static int debugcon_parse(const char *devname)
4696 {
4697 QemuOpts *opts;
4698
4699 if (!qemu_chr_open("debugcon", devname, NULL)) {
4700 exit(1);
4701 }
4702 opts = qemu_opts_create(&qemu_device_opts, "debugcon", 1);
4703 if (!opts) {
4704 fprintf(stderr, "qemu: already have a debugcon device\n");
4705 exit(1);
4706 }
4707 qemu_opt_set(opts, "driver", "isa-debugcon");
4708 qemu_opt_set(opts, "chardev", "debugcon");
4709 return 0;
4710 }
4711
4712 static const QEMUOption *lookup_opt(int argc, char **argv,
4713 const char **poptarg, int *poptind)
4714 {
4715 const QEMUOption *popt;
4716 int optind = *poptind;
4717 char *r = argv[optind];
4718 const char *optarg;
4719
4720 optind++;
4721 /* Treat --foo the same as -foo. */
4722 if (r[1] == '-')
4723 r++;
4724 popt = qemu_options;
4725 for(;;) {
4726 if (!popt->name) {
4727 fprintf(stderr, "%s: invalid option -- '%s'\n",
4728 argv[0], r);
4729 exit(1);
4730 }
4731 if (!strcmp(popt->name, r + 1))
4732 break;
4733 popt++;
4734 }
4735 if (popt->flags & HAS_ARG) {
4736 if (optind >= argc) {
4737 fprintf(stderr, "%s: option '%s' requires an argument\n",
4738 argv[0], r);
4739 exit(1);
4740 }
4741 optarg = argv[optind++];
4742 } else {
4743 optarg = NULL;
4744 }
4745
4746 *poptarg = optarg;
4747 *poptind = optind;
4748
4749 return popt;
4750 }
4751
4752 int main(int argc, char **argv, char **envp)
4753 {
4754 const char *gdbstub_dev = NULL;
4755 uint32_t boot_devices_bitmap = 0;
4756 int i;
4757 int snapshot, linux_boot, net_boot;
4758 const char *initrd_filename;
4759 const char *kernel_filename, *kernel_cmdline;
4760 char boot_devices[33] = "cad"; /* default to HD->floppy->CD-ROM */
4761 DisplayState *ds;
4762 DisplayChangeListener *dcl;
4763 int cyls, heads, secs, translation;
4764 QemuOpts *hda_opts = NULL, *opts;
4765 int optind;
4766 const char *optarg;
4767 const char *loadvm = NULL;
4768 QEMUMachine *machine;
4769 const char *cpu_model;
4770 #ifndef _WIN32
4771 int fds[2];
4772 #endif
4773 int tb_size;
4774 const char *pid_file = NULL;
4775 const char *incoming = NULL;
4776 #ifndef _WIN32
4777 int fd = 0;
4778 struct passwd *pwd = NULL;
4779 const char *chroot_dir = NULL;
4780 const char *run_as = NULL;
4781 #endif
4782 CPUState *env;
4783 int show_vnc_port = 0;
4784 int defconfig = 1;
4785
4786 init_clocks();
4787
4788 qemu_errors_to_file(stderr);
4789 qemu_cache_utils_init(envp);
4790
4791 QLIST_INIT (&vm_change_state_head);
4792 #ifndef _WIN32
4793 {
4794 struct sigaction act;
4795 sigfillset(&act.sa_mask);
4796 act.sa_flags = 0;
4797 act.sa_handler = SIG_IGN;
4798 sigaction(SIGPIPE, &act, NULL);
4799 }
4800 #else
4801 SetConsoleCtrlHandler(qemu_ctrl_handler, TRUE);
4802 /* Note: cpu_interrupt() is currently not SMP safe, so we force
4803 QEMU to run on a single CPU */
4804 {
4805 HANDLE h;
4806 DWORD mask, smask;
4807 int i;
4808 h = GetCurrentProcess();
4809 if (GetProcessAffinityMask(h, &mask, &smask)) {
4810 for(i = 0; i < 32; i++) {
4811 if (mask & (1 << i))
4812 break;
4813 }
4814 if (i != 32) {
4815 mask = 1 << i;
4816 SetProcessAffinityMask(h, mask);
4817 }
4818 }
4819 }
4820 #endif
4821
4822 module_call_init(MODULE_INIT_MACHINE);
4823 machine = find_default_machine();
4824 cpu_model = NULL;
4825 initrd_filename = NULL;
4826 ram_size = 0;
4827 snapshot = 0;
4828 kernel_filename = NULL;
4829 kernel_cmdline = "";
4830 cyls = heads = secs = 0;
4831 translation = BIOS_ATA_TRANSLATION_AUTO;
4832
4833 for (i = 0; i < MAX_NODES; i++) {
4834 node_mem[i] = 0;
4835 node_cpumask[i] = 0;
4836 }
4837
4838 nb_numa_nodes = 0;
4839 nb_nics = 0;
4840
4841 tb_size = 0;
4842 autostart= 1;
4843
4844 /* first pass of option parsing */
4845 optind = 1;
4846 while (optind < argc) {
4847 if (argv[optind][0] != '-') {
4848 /* disk image */
4849 optind++;
4850 continue;
4851 } else {
4852 const QEMUOption *popt;
4853
4854 popt = lookup_opt(argc, argv, &optarg, &optind);
4855 switch (popt->index) {
4856 case QEMU_OPTION_nodefconfig:
4857 defconfig=0;
4858 break;
4859 }
4860 }
4861 }
4862
4863 if (defconfig) {
4864 FILE *fp;
4865 fp = fopen(CONFIG_QEMU_CONFDIR "/qemu.conf", "r");
4866 if (fp) {
4867 if (qemu_config_parse(fp) != 0) {
4868 exit(1);
4869 }
4870 fclose(fp);
4871 }
4872
4873 fp = fopen(CONFIG_QEMU_CONFDIR "/target-" TARGET_ARCH ".conf", "r");
4874 if (fp) {
4875 if (qemu_config_parse(fp) != 0) {
4876 exit(1);
4877 }
4878 fclose(fp);
4879 }
4880 }
4881
4882 /* second pass of option parsing */
4883 optind = 1;
4884 for(;;) {
4885 if (optind >= argc)
4886 break;
4887 if (argv[optind][0] != '-') {
4888 hda_opts = drive_add(argv[optind++], HD_ALIAS, 0);
4889 } else {
4890 const QEMUOption *popt;
4891
4892 popt = lookup_opt(argc, argv, &optarg, &optind);
4893 switch(popt->index) {
4894 case QEMU_OPTION_M:
4895 machine = find_machine(optarg);
4896 if (!machine) {
4897 QEMUMachine *m;
4898 printf("Supported machines are:\n");
4899 for(m = first_machine; m != NULL; m = m->next) {
4900 if (m->alias)
4901 printf("%-10s %s (alias of %s)\n",
4902 m->alias, m->desc, m->name);
4903 printf("%-10s %s%s\n",
4904 m->name, m->desc,
4905 m->is_default ? " (default)" : "");
4906 }
4907 exit(*optarg != '?');
4908 }
4909 break;
4910 case QEMU_OPTION_cpu:
4911 /* hw initialization will check this */
4912 if (*optarg == '?') {
4913 /* XXX: implement xxx_cpu_list for targets that still miss it */
4914 #if defined(cpu_list)
4915 cpu_list(stdout, &fprintf);
4916 #endif
4917 exit(0);
4918 } else {
4919 cpu_model = optarg;
4920 }
4921 break;
4922 case QEMU_OPTION_initrd:
4923 initrd_filename = optarg;
4924 break;
4925 case QEMU_OPTION_hda:
4926 if (cyls == 0)
4927 hda_opts = drive_add(optarg, HD_ALIAS, 0);
4928 else
4929 hda_opts = drive_add(optarg, HD_ALIAS
4930 ",cyls=%d,heads=%d,secs=%d%s",
4931 0, cyls, heads, secs,
4932 translation == BIOS_ATA_TRANSLATION_LBA ?
4933 ",trans=lba" :
4934 translation == BIOS_ATA_TRANSLATION_NONE ?
4935 ",trans=none" : "");
4936 break;
4937 case QEMU_OPTION_hdb:
4938 case QEMU_OPTION_hdc:
4939 case QEMU_OPTION_hdd:
4940 drive_add(optarg, HD_ALIAS, popt->index - QEMU_OPTION_hda);
4941 break;
4942 case QEMU_OPTION_drive:
4943 drive_add(NULL, "%s", optarg);
4944 break;
4945 case QEMU_OPTION_set:
4946 if (qemu_set_option(optarg) != 0)
4947 exit(1);
4948 break;
4949 case QEMU_OPTION_global:
4950 if (qemu_global_option(optarg) != 0)
4951 exit(1);
4952 break;
4953 case QEMU_OPTION_mtdblock:
4954 drive_add(optarg, MTD_ALIAS);
4955 break;
4956 case QEMU_OPTION_sd:
4957 drive_add(optarg, SD_ALIAS);
4958 break;
4959 case QEMU_OPTION_pflash:
4960 drive_add(optarg, PFLASH_ALIAS);
4961 break;
4962 case QEMU_OPTION_snapshot:
4963 snapshot = 1;
4964 break;
4965 case QEMU_OPTION_hdachs:
4966 {
4967 const char *p;
4968 p = optarg;
4969 cyls = strtol(p, (char **)&p, 0);
4970 if (cyls < 1 || cyls > 16383)
4971 goto chs_fail;
4972 if (*p != ',')
4973 goto chs_fail;
4974 p++;
4975 heads = strtol(p, (char **)&p, 0);
4976 if (heads < 1 || heads > 16)
4977 goto chs_fail;
4978 if (*p != ',')
4979 goto chs_fail;
4980 p++;
4981 secs = strtol(p, (char **)&p, 0);
4982 if (secs < 1 || secs > 63)
4983 goto chs_fail;
4984 if (*p == ',') {
4985 p++;
4986 if (!strcmp(p, "none"))
4987 translation = BIOS_ATA_TRANSLATION_NONE;
4988 else if (!strcmp(p, "lba"))
4989 translation = BIOS_ATA_TRANSLATION_LBA;
4990 else if (!strcmp(p, "auto"))
4991 translation = BIOS_ATA_TRANSLATION_AUTO;
4992 else
4993 goto chs_fail;
4994 } else if (*p != '\0') {
4995 chs_fail:
4996 fprintf(stderr, "qemu: invalid physical CHS format\n");
4997 exit(1);
4998 }
4999 if (hda_opts != NULL) {
5000 char num[16];
5001 snprintf(num, sizeof(num), "%d", cyls);
5002 qemu_opt_set(hda_opts, "cyls", num);
5003 snprintf(num, sizeof(num), "%d", heads);
5004 qemu_opt_set(hda_opts, "heads", num);
5005 snprintf(num, sizeof(num), "%d", secs);
5006 qemu_opt_set(hda_opts, "secs", num);
5007 if (translation == BIOS_ATA_TRANSLATION_LBA)
5008 qemu_opt_set(hda_opts, "trans", "lba");
5009 if (translation == BIOS_ATA_TRANSLATION_NONE)
5010 qemu_opt_set(hda_opts, "trans", "none");
5011 }
5012 }
5013 break;
5014 case QEMU_OPTION_numa:
5015 if (nb_numa_nodes >= MAX_NODES) {
5016 fprintf(stderr, "qemu: too many NUMA nodes\n");
5017 exit(1);
5018 }
5019 numa_add(optarg);
5020 break;
5021 case QEMU_OPTION_nographic:
5022 display_type = DT_NOGRAPHIC;
5023 break;
5024 #ifdef CONFIG_CURSES
5025 case QEMU_OPTION_curses:
5026 display_type = DT_CURSES;
5027 break;
5028 #endif
5029 case QEMU_OPTION_portrait:
5030 graphic_rotate = 1;
5031 break;
5032 case QEMU_OPTION_kernel:
5033 kernel_filename = optarg;
5034 break;
5035 case QEMU_OPTION_append:
5036 kernel_cmdline = optarg;
5037 break;
5038 case QEMU_OPTION_cdrom:
5039 drive_add(optarg, CDROM_ALIAS);
5040 break;
5041 case QEMU_OPTION_boot:
5042 {
5043 static const char * const params[] = {
5044 "order", "once", "menu", NULL
5045 };
5046 char buf[sizeof(boot_devices)];
5047 char *standard_boot_devices;
5048 int legacy = 0;
5049
5050 if (!strchr(optarg, '=')) {
5051 legacy = 1;
5052 pstrcpy(buf, sizeof(buf), optarg);
5053 } else if (check_params(buf, sizeof(buf), params, optarg) < 0) {
5054 fprintf(stderr,
5055 "qemu: unknown boot parameter '%s' in '%s'\n",
5056 buf, optarg);
5057 exit(1);
5058 }
5059
5060 if (legacy ||
5061 get_param_value(buf, sizeof(buf), "order", optarg)) {
5062 boot_devices_bitmap = parse_bootdevices(buf);
5063 pstrcpy(boot_devices, sizeof(boot_devices), buf);
5064 }
5065 if (!legacy) {
5066 if (get_param_value(buf, sizeof(buf),
5067 "once", optarg)) {
5068 boot_devices_bitmap |= parse_bootdevices(buf);
5069 standard_boot_devices = qemu_strdup(boot_devices);
5070 pstrcpy(boot_devices, sizeof(boot_devices), buf);
5071 qemu_register_reset(restore_boot_devices,
5072 standard_boot_devices);
5073 }
5074 if (get_param_value(buf, sizeof(buf),
5075 "menu", optarg)) {
5076 if (!strcmp(buf, "on")) {
5077 boot_menu = 1;
5078 } else if (!strcmp(buf, "off")) {
5079 boot_menu = 0;
5080 } else {
5081 fprintf(stderr,
5082 "qemu: invalid option value '%s'\n",
5083 buf);
5084 exit(1);
5085 }
5086 }
5087 }
5088 }
5089 break;
5090 case QEMU_OPTION_fda:
5091 case QEMU_OPTION_fdb:
5092 drive_add(optarg, FD_ALIAS, popt->index - QEMU_OPTION_fda);
5093 break;
5094 #ifdef TARGET_I386
5095 case QEMU_OPTION_no_fd_bootchk:
5096 fd_bootchk = 0;
5097 break;
5098 #endif
5099 case QEMU_OPTION_netdev:
5100 if (net_client_parse(&qemu_netdev_opts, optarg) == -1) {
5101 exit(1);
5102 }
5103 break;
5104 case QEMU_OPTION_net:
5105 if (net_client_parse(&qemu_net_opts, optarg) == -1) {
5106 exit(1);
5107 }
5108 break;
5109 #ifdef CONFIG_SLIRP
5110 case QEMU_OPTION_tftp:
5111 legacy_tftp_prefix = optarg;
5112 break;
5113 case QEMU_OPTION_bootp:
5114 legacy_bootp_filename = optarg;
5115 break;
5116 #ifndef _WIN32
5117 case QEMU_OPTION_smb:
5118 if (net_slirp_smb(optarg) < 0)
5119 exit(1);
5120 break;
5121 #endif
5122 case QEMU_OPTION_redir:
5123 if (net_slirp_redir(optarg) < 0)
5124 exit(1);
5125 break;
5126 #endif
5127 case QEMU_OPTION_bt:
5128 add_device_config(DEV_BT, optarg);
5129 break;
5130 #ifdef HAS_AUDIO
5131 case QEMU_OPTION_audio_help:
5132 AUD_help ();
5133 exit (0);
5134 break;
5135 case QEMU_OPTION_soundhw:
5136 select_soundhw (optarg);
5137 break;
5138 #endif
5139 case QEMU_OPTION_h:
5140 help(0);
5141 break;
5142 case QEMU_OPTION_version:
5143 version();
5144 exit(0);
5145 break;
5146 case QEMU_OPTION_m: {
5147 uint64_t value;
5148 char *ptr;
5149
5150 value = strtoul(optarg, &ptr, 10);
5151 switch (*ptr) {
5152 case 0: case 'M': case 'm':
5153 value <<= 20;
5154 break;
5155 case 'G': case 'g':
5156 value <<= 30;
5157 break;
5158 default:
5159 fprintf(stderr, "qemu: invalid ram size: %s\n", optarg);
5160 exit(1);
5161 }
5162
5163 /* On 32-bit hosts, QEMU is limited by virtual address space */
5164 if (value > (2047 << 20) && HOST_LONG_BITS == 32) {
5165 fprintf(stderr, "qemu: at most 2047 MB RAM can be simulated\n");
5166 exit(1);
5167 }
5168 if (value != (uint64_t)(ram_addr_t)value) {
5169 fprintf(stderr, "qemu: ram size too large\n");
5170 exit(1);
5171 }
5172 ram_size = value;
5173 break;
5174 }
5175 case QEMU_OPTION_d:
5176 {
5177 int mask;
5178 const CPULogItem *item;
5179
5180 mask = cpu_str_to_log_mask(optarg);
5181 if (!mask) {
5182 printf("Log items (comma separated):\n");
5183 for(item = cpu_log_items; item->mask != 0; item++) {
5184 printf("%-10s %s\n", item->name, item->help);
5185 }
5186 exit(1);
5187 }
5188 cpu_set_log(mask);
5189 }
5190 break;
5191 case QEMU_OPTION_s:
5192 gdbstub_dev = "tcp::" DEFAULT_GDBSTUB_PORT;
5193 break;
5194 case QEMU_OPTION_gdb:
5195 gdbstub_dev = optarg;
5196 break;
5197 case QEMU_OPTION_L:
5198 data_dir = optarg;
5199 break;
5200 case QEMU_OPTION_bios:
5201 bios_name = optarg;
5202 break;
5203 case QEMU_OPTION_singlestep:
5204 singlestep = 1;
5205 break;
5206 case QEMU_OPTION_S:
5207 autostart = 0;
5208 break;
5209 case QEMU_OPTION_k:
5210 keyboard_layout = optarg;
5211 break;
5212 case QEMU_OPTION_localtime:
5213 rtc_utc = 0;
5214 break;
5215 case QEMU_OPTION_vga:
5216 select_vgahw (optarg);
5217 break;
5218 #if defined(TARGET_PPC) || defined(TARGET_SPARC)
5219 case QEMU_OPTION_g:
5220 {
5221 const char *p;
5222 int w, h, depth;
5223 p = optarg;
5224 w = strtol(p, (char **)&p, 10);
5225 if (w <= 0) {
5226 graphic_error:
5227 fprintf(stderr, "qemu: invalid resolution or depth\n");
5228 exit(1);
5229 }
5230 if (*p != 'x')
5231 goto graphic_error;
5232 p++;
5233 h = strtol(p, (char **)&p, 10);
5234 if (h <= 0)
5235 goto graphic_error;
5236 if (*p == 'x') {
5237 p++;
5238 depth = strtol(p, (char **)&p, 10);
5239 if (depth != 8 && depth != 15 && depth != 16 &&
5240 depth != 24 && depth != 32)
5241 goto graphic_error;
5242 } else if (*p == '\0') {
5243 depth = graphic_depth;
5244 } else {
5245 goto graphic_error;
5246 }
5247
5248 graphic_width = w;
5249 graphic_height = h;
5250 graphic_depth = depth;
5251 }
5252 break;
5253 #endif
5254 case QEMU_OPTION_echr:
5255 {
5256 char *r;
5257 term_escape_char = strtol(optarg, &r, 0);
5258 if (r == optarg)
5259 printf("Bad argument to echr\n");
5260 break;
5261 }
5262 case QEMU_OPTION_monitor:
5263 monitor_parse(optarg, "readline");
5264 default_monitor = 0;
5265 break;
5266 case QEMU_OPTION_qmp:
5267 monitor_parse(optarg, "control");
5268 default_monitor = 0;
5269 break;
5270 case QEMU_OPTION_mon:
5271 opts = qemu_opts_parse(&qemu_mon_opts, optarg, "chardev");
5272 if (!opts) {
5273 fprintf(stderr, "parse error: %s\n", optarg);
5274 exit(1);
5275 }
5276 default_monitor = 0;
5277 break;
5278 case QEMU_OPTION_chardev:
5279 opts = qemu_opts_parse(&qemu_chardev_opts, optarg, "backend");
5280 if (!opts) {
5281 fprintf(stderr, "parse error: %s\n", optarg);
5282 exit(1);
5283 }
5284 break;
5285 case QEMU_OPTION_serial:
5286 add_device_config(DEV_SERIAL, optarg);
5287 default_serial = 0;
5288 break;
5289 case QEMU_OPTION_watchdog:
5290 if (watchdog) {
5291 fprintf(stderr,
5292 "qemu: only one watchdog option may be given\n");
5293 return 1;
5294 }
5295 watchdog = optarg;
5296 break;
5297 case QEMU_OPTION_watchdog_action:
5298 if (select_watchdog_action(optarg) == -1) {
5299 fprintf(stderr, "Unknown -watchdog-action parameter\n");
5300 exit(1);
5301 }
5302 break;
5303 case QEMU_OPTION_virtiocon:
5304 add_device_config(DEV_VIRTCON, optarg);
5305 default_virtcon = 0;
5306 break;
5307 case QEMU_OPTION_parallel:
5308 add_device_config(DEV_PARALLEL, optarg);
5309 default_parallel = 0;
5310 break;
5311 case QEMU_OPTION_debugcon:
5312 add_device_config(DEV_DEBUGCON, optarg);
5313 break;
5314 case QEMU_OPTION_loadvm:
5315 loadvm = optarg;
5316 break;
5317 case QEMU_OPTION_full_screen:
5318 full_screen = 1;
5319 break;
5320 #ifdef CONFIG_SDL
5321 case QEMU_OPTION_no_frame:
5322 no_frame = 1;
5323 break;
5324 case QEMU_OPTION_alt_grab:
5325 alt_grab = 1;
5326 break;
5327 case QEMU_OPTION_ctrl_grab:
5328 ctrl_grab = 1;
5329 break;
5330 case QEMU_OPTION_no_quit:
5331 no_quit = 1;
5332 break;
5333 case QEMU_OPTION_sdl:
5334 display_type = DT_SDL;
5335 break;
5336 #endif
5337 case QEMU_OPTION_pidfile:
5338 pid_file = optarg;
5339 break;
5340 #ifdef TARGET_I386
5341 case QEMU_OPTION_win2k_hack:
5342 win2k_install_hack = 1;
5343 break;
5344 case QEMU_OPTION_rtc_td_hack:
5345 rtc_td_hack = 1;
5346 break;
5347 case QEMU_OPTION_acpitable:
5348 if(acpi_table_add(optarg) < 0) {
5349 fprintf(stderr, "Wrong acpi table provided\n");
5350 exit(1);
5351 }
5352 break;
5353 case QEMU_OPTION_smbios:
5354 if(smbios_entry_add(optarg) < 0) {
5355 fprintf(stderr, "Wrong smbios provided\n");
5356 exit(1);
5357 }
5358 break;
5359 #endif
5360 #ifdef CONFIG_KVM
5361 case QEMU_OPTION_enable_kvm:
5362 kvm_allowed = 1;
5363 break;
5364 #endif
5365 case QEMU_OPTION_usb:
5366 usb_enabled = 1;
5367 break;
5368 case QEMU_OPTION_usbdevice:
5369 usb_enabled = 1;
5370 add_device_config(DEV_USB, optarg);
5371 break;
5372 case QEMU_OPTION_device:
5373 if (!qemu_opts_parse(&qemu_device_opts, optarg, "driver")) {
5374 exit(1);
5375 }
5376 break;
5377 case QEMU_OPTION_smp:
5378 smp_parse(optarg);
5379 if (smp_cpus < 1) {
5380 fprintf(stderr, "Invalid number of CPUs\n");
5381 exit(1);
5382 }
5383 if (max_cpus < smp_cpus) {
5384 fprintf(stderr, "maxcpus must be equal to or greater than "
5385 "smp\n");
5386 exit(1);
5387 }
5388 if (max_cpus > 255) {
5389 fprintf(stderr, "Unsupported number of maxcpus\n");
5390 exit(1);
5391 }
5392 break;
5393 case QEMU_OPTION_vnc:
5394 display_type = DT_VNC;
5395 vnc_display = optarg;
5396 break;
5397 #ifdef TARGET_I386
5398 case QEMU_OPTION_no_acpi:
5399 acpi_enabled = 0;
5400 break;
5401 case QEMU_OPTION_no_hpet:
5402 no_hpet = 1;
5403 break;
5404 case QEMU_OPTION_balloon:
5405 if (balloon_parse(optarg) < 0) {
5406 fprintf(stderr, "Unknown -balloon argument %s\n", optarg);
5407 exit(1);
5408 }
5409 break;
5410 #endif
5411 case QEMU_OPTION_no_reboot:
5412 no_reboot = 1;
5413 break;
5414 case QEMU_OPTION_no_shutdown:
5415 no_shutdown = 1;
5416 break;
5417 case QEMU_OPTION_show_cursor:
5418 cursor_hide = 0;
5419 break;
5420 case QEMU_OPTION_uuid:
5421 if(qemu_uuid_parse(optarg, qemu_uuid) < 0) {
5422 fprintf(stderr, "Fail to parse UUID string."
5423 " Wrong format.\n");
5424 exit(1);
5425 }
5426 break;
5427 #ifndef _WIN32
5428 case QEMU_OPTION_daemonize:
5429 daemonize = 1;
5430 break;
5431 #endif
5432 case QEMU_OPTION_option_rom:
5433 if (nb_option_roms >= MAX_OPTION_ROMS) {
5434 fprintf(stderr, "Too many option ROMs\n");
5435 exit(1);
5436 }
5437 option_rom[nb_option_roms] = optarg;
5438 nb_option_roms++;
5439 break;
5440 #if defined(TARGET_ARM) || defined(TARGET_M68K)
5441 case QEMU_OPTION_semihosting:
5442 semihosting_enabled = 1;
5443 break;
5444 #endif
5445 case QEMU_OPTION_name:
5446 qemu_name = qemu_strdup(optarg);
5447 {
5448 char *p = strchr(qemu_name, ',');
5449 if (p != NULL) {
5450 *p++ = 0;
5451 if (strncmp(p, "process=", 8)) {
5452 fprintf(stderr, "Unknown subargument %s to -name", p);
5453 exit(1);
5454 }
5455 p += 8;
5456 set_proc_name(p);
5457 }
5458 }
5459 break;
5460 #if defined(TARGET_SPARC) || defined(TARGET_PPC)
5461 case QEMU_OPTION_prom_env:
5462 if (nb_prom_envs >= MAX_PROM_ENVS) {
5463 fprintf(stderr, "Too many prom variables\n");
5464 exit(1);
5465 }
5466 prom_envs[nb_prom_envs] = optarg;
5467 nb_prom_envs++;
5468 break;
5469 #endif
5470 #ifdef TARGET_ARM
5471 case QEMU_OPTION_old_param:
5472 old_param = 1;
5473 break;
5474 #endif
5475 case QEMU_OPTION_clock:
5476 configure_alarms(optarg);
5477 break;
5478 case QEMU_OPTION_startdate:
5479 configure_rtc_date_offset(optarg, 1);
5480 break;
5481 case QEMU_OPTION_rtc:
5482 opts = qemu_opts_parse(&qemu_rtc_opts, optarg, NULL);
5483 if (!opts) {
5484 fprintf(stderr, "parse error: %s\n", optarg);
5485 exit(1);
5486 }
5487 configure_rtc(opts);
5488 break;
5489 case QEMU_OPTION_tb_size:
5490 tb_size = strtol(optarg, NULL, 0);
5491 if (tb_size < 0)
5492 tb_size = 0;
5493 break;
5494 case QEMU_OPTION_icount:
5495 use_icount = 1;
5496 if (strcmp(optarg, "auto") == 0) {
5497 icount_time_shift = -1;
5498 } else {
5499 icount_time_shift = strtol(optarg, NULL, 0);
5500 }
5501 break;
5502 case QEMU_OPTION_incoming:
5503 incoming = optarg;
5504 break;
5505 case QEMU_OPTION_nodefaults:
5506 default_serial = 0;
5507 default_parallel = 0;
5508 default_virtcon = 0;
5509 default_monitor = 0;
5510 default_vga = 0;
5511 default_net = 0;
5512 default_floppy = 0;
5513 default_cdrom = 0;
5514 default_sdcard = 0;
5515 break;
5516 #ifndef _WIN32
5517 case QEMU_OPTION_chroot:
5518 chroot_dir = optarg;
5519 break;
5520 case QEMU_OPTION_runas:
5521 run_as = optarg;
5522 break;
5523 #endif
5524 #ifdef CONFIG_XEN
5525 case QEMU_OPTION_xen_domid:
5526 xen_domid = atoi(optarg);
5527 break;
5528 case QEMU_OPTION_xen_create:
5529 xen_mode = XEN_CREATE;
5530 break;
5531 case QEMU_OPTION_xen_attach:
5532 xen_mode = XEN_ATTACH;
5533 break;
5534 #endif
5535 case QEMU_OPTION_readconfig:
5536 {
5537 FILE *fp;
5538 fp = fopen(optarg, "r");
5539 if (fp == NULL) {
5540 fprintf(stderr, "open %s: %s\n", optarg, strerror(errno));
5541 exit(1);
5542 }
5543 if (qemu_config_parse(fp) != 0) {
5544 exit(1);
5545 }
5546 fclose(fp);
5547 break;
5548 }
5549 case QEMU_OPTION_writeconfig:
5550 {
5551 FILE *fp;
5552 if (strcmp(optarg, "-") == 0) {
5553 fp = stdout;
5554 } else {
5555 fp = fopen(optarg, "w");
5556 if (fp == NULL) {
5557 fprintf(stderr, "open %s: %s\n", optarg, strerror(errno));
5558 exit(1);
5559 }
5560 }
5561 qemu_config_write(fp);
5562 fclose(fp);
5563 break;
5564 }
5565 }
5566 }
5567 }
5568
5569 /* If no data_dir is specified then try to find it relative to the
5570 executable path. */
5571 if (!data_dir) {
5572 data_dir = find_datadir(argv[0]);
5573 }
5574 /* If all else fails use the install patch specified when building. */
5575 if (!data_dir) {
5576 data_dir = CONFIG_QEMU_SHAREDIR;
5577 }
5578
5579 /*
5580 * Default to max_cpus = smp_cpus, in case the user doesn't
5581 * specify a max_cpus value.
5582 */
5583 if (!max_cpus)
5584 max_cpus = smp_cpus;
5585
5586 machine->max_cpus = machine->max_cpus ?: 1; /* Default to UP */
5587 if (smp_cpus > machine->max_cpus) {
5588 fprintf(stderr, "Number of SMP cpus requested (%d), exceeds max cpus "
5589 "supported by machine `%s' (%d)\n", smp_cpus, machine->name,
5590 machine->max_cpus);
5591 exit(1);
5592 }
5593
5594 qemu_opts_foreach(&qemu_device_opts, default_driver_check, NULL, 0);
5595 qemu_opts_foreach(&qemu_global_opts, default_driver_check, NULL, 0);
5596
5597 if (machine->no_serial) {
5598 default_serial = 0;
5599 }
5600 if (machine->no_parallel) {
5601 default_parallel = 0;
5602 }
5603 if (!machine->use_virtcon) {
5604 default_virtcon = 0;
5605 }
5606 if (machine->no_vga) {
5607 default_vga = 0;
5608 }
5609 if (machine->no_floppy) {
5610 default_floppy = 0;
5611 }
5612 if (machine->no_cdrom) {
5613 default_cdrom = 0;
5614 }
5615 if (machine->no_sdcard) {
5616 default_sdcard = 0;
5617 }
5618
5619 if (display_type == DT_NOGRAPHIC) {
5620 if (default_parallel)
5621 add_device_config(DEV_PARALLEL, "null");
5622 if (default_serial && default_monitor) {
5623 add_device_config(DEV_SERIAL, "mon:stdio");
5624 } else if (default_virtcon && default_monitor) {
5625 add_device_config(DEV_VIRTCON, "mon:stdio");
5626 } else {
5627 if (default_serial)
5628 add_device_config(DEV_SERIAL, "stdio");
5629 if (default_virtcon)
5630 add_device_config(DEV_VIRTCON, "stdio");
5631 if (default_monitor)
5632 monitor_parse("stdio", "readline");
5633 }
5634 } else {
5635 if (default_serial)
5636 add_device_config(DEV_SERIAL, "vc:80Cx24C");
5637 if (default_parallel)
5638 add_device_config(DEV_PARALLEL, "vc:80Cx24C");
5639 if (default_monitor)
5640 monitor_parse("vc:80Cx24C", "readline");
5641 if (default_virtcon)
5642 add_device_config(DEV_VIRTCON, "vc:80Cx24C");
5643 }
5644 if (default_vga)
5645 vga_interface_type = VGA_CIRRUS;
5646
5647 if (qemu_opts_foreach(&qemu_chardev_opts, chardev_init_func, NULL, 1) != 0)
5648 exit(1);
5649
5650 #ifndef _WIN32
5651 if (daemonize) {
5652 pid_t pid;
5653
5654 if (pipe(fds) == -1)
5655 exit(1);
5656
5657 pid = fork();
5658 if (pid > 0) {
5659 uint8_t status;
5660 ssize_t len;
5661
5662 close(fds[1]);
5663
5664 again:
5665 len = read(fds[0], &status, 1);
5666 if (len == -1 && (errno == EINTR))
5667 goto again;
5668
5669 if (len != 1)
5670 exit(1);
5671 else if (status == 1) {
5672 fprintf(stderr, "Could not acquire pidfile: %s\n", strerror(errno));
5673 exit(1);
5674 } else
5675 exit(0);
5676 } else if (pid < 0)
5677 exit(1);
5678
5679 close(fds[0]);
5680 qemu_set_cloexec(fds[1]);
5681
5682 setsid();
5683
5684 pid = fork();
5685 if (pid > 0)
5686 exit(0);
5687 else if (pid < 0)
5688 exit(1);
5689
5690 umask(027);
5691
5692 signal(SIGTSTP, SIG_IGN);
5693 signal(SIGTTOU, SIG_IGN);
5694 signal(SIGTTIN, SIG_IGN);
5695 }
5696 #endif
5697
5698 if (pid_file && qemu_create_pidfile(pid_file) != 0) {
5699 #ifndef _WIN32
5700 if (daemonize) {
5701 uint8_t status = 1;
5702 if (write(fds[1], &status, 1) != 1) {
5703 perror("daemonize. Writing to pipe\n");
5704 }
5705 } else
5706 #endif
5707 fprintf(stderr, "Could not acquire pid file: %s\n", strerror(errno));
5708 exit(1);
5709 }
5710
5711 if (kvm_enabled()) {
5712 int ret;
5713
5714 ret = kvm_init(smp_cpus);
5715 if (ret < 0) {
5716 fprintf(stderr, "failed to initialize KVM\n");
5717 exit(1);
5718 }
5719 }
5720
5721 if (qemu_init_main_loop()) {
5722 fprintf(stderr, "qemu_init_main_loop failed\n");
5723 exit(1);
5724 }
5725 linux_boot = (kernel_filename != NULL);
5726
5727 if (!linux_boot && *kernel_cmdline != '\0') {
5728 fprintf(stderr, "-append only allowed with -kernel option\n");
5729 exit(1);
5730 }
5731
5732 if (!linux_boot && initrd_filename != NULL) {
5733 fprintf(stderr, "-initrd only allowed with -kernel option\n");
5734 exit(1);
5735 }
5736
5737 #ifndef _WIN32
5738 /* Win32 doesn't support line-buffering and requires size >= 2 */
5739 setvbuf(stdout, NULL, _IOLBF, 0);
5740 #endif
5741
5742 if (init_timer_alarm() < 0) {
5743 fprintf(stderr, "could not initialize alarm timer\n");
5744 exit(1);
5745 }
5746 if (use_icount && icount_time_shift < 0) {
5747 use_icount = 2;
5748 /* 125MIPS seems a reasonable initial guess at the guest speed.
5749 It will be corrected fairly quickly anyway. */
5750 icount_time_shift = 3;
5751 init_icount_adjust();
5752 }
5753
5754 #ifdef _WIN32
5755 socket_init();
5756 #endif
5757
5758 if (net_init_clients() < 0) {
5759 exit(1);
5760 }
5761
5762 net_boot = (boot_devices_bitmap >> ('n' - 'a')) & 0xF;
5763 net_set_boot_mask(net_boot);
5764
5765 /* init the bluetooth world */
5766 if (foreach_device_config(DEV_BT, bt_parse))
5767 exit(1);
5768
5769 /* init the memory */
5770 if (ram_size == 0)
5771 ram_size = DEFAULT_RAM_SIZE * 1024 * 1024;
5772
5773 /* init the dynamic translator */
5774 cpu_exec_init_all(tb_size * 1024 * 1024);
5775
5776 bdrv_init_with_whitelist();
5777
5778 blk_mig_init();
5779
5780 if (default_cdrom) {
5781 /* we always create the cdrom drive, even if no disk is there */
5782 drive_add(NULL, CDROM_ALIAS);
5783 }
5784
5785 if (default_floppy) {
5786 /* we always create at least one floppy */
5787 drive_add(NULL, FD_ALIAS, 0);
5788 }
5789
5790 if (default_sdcard) {
5791 /* we always create one sd slot, even if no card is in it */
5792 drive_add(NULL, SD_ALIAS);
5793 }
5794
5795 /* open the virtual block devices */
5796 if (snapshot)
5797 qemu_opts_foreach(&qemu_drive_opts, drive_enable_snapshot, NULL, 0);
5798 if (qemu_opts_foreach(&qemu_drive_opts, drive_init_func, machine, 1) != 0)
5799 exit(1);
5800
5801 vmstate_register(0, &vmstate_timers ,&timers_state);
5802 register_savevm_live("ram", 0, 3, NULL, ram_save_live, NULL,
5803 ram_load, NULL);
5804
5805 if (nb_numa_nodes > 0) {
5806 int i;
5807
5808 if (nb_numa_nodes > smp_cpus) {
5809 nb_numa_nodes = smp_cpus;
5810 }
5811
5812 /* If no memory size if given for any node, assume the default case
5813 * and distribute the available memory equally across all nodes
5814 */
5815 for (i = 0; i < nb_numa_nodes; i++) {
5816 if (node_mem[i] != 0)
5817 break;
5818 }
5819 if (i == nb_numa_nodes) {
5820 uint64_t usedmem = 0;
5821
5822 /* On Linux, the each node's border has to be 8MB aligned,
5823 * the final node gets the rest.
5824 */
5825 for (i = 0; i < nb_numa_nodes - 1; i++) {
5826 node_mem[i] = (ram_size / nb_numa_nodes) & ~((1 << 23UL) - 1);
5827 usedmem += node_mem[i];
5828 }
5829 node_mem[i] = ram_size - usedmem;
5830 }
5831
5832 for (i = 0; i < nb_numa_nodes; i++) {
5833 if (node_cpumask[i] != 0)
5834 break;
5835 }
5836 /* assigning the VCPUs round-robin is easier to implement, guest OSes
5837 * must cope with this anyway, because there are BIOSes out there in
5838 * real machines which also use this scheme.
5839 */
5840 if (i == nb_numa_nodes) {
5841 for (i = 0; i < smp_cpus; i++) {
5842 node_cpumask[i % nb_numa_nodes] |= 1 << i;
5843 }
5844 }
5845 }
5846
5847 if (foreach_device_config(DEV_SERIAL, serial_parse) < 0)
5848 exit(1);
5849 if (foreach_device_config(DEV_PARALLEL, parallel_parse) < 0)
5850 exit(1);
5851 if (foreach_device_config(DEV_VIRTCON, virtcon_parse) < 0)
5852 exit(1);
5853 if (foreach_device_config(DEV_DEBUGCON, debugcon_parse) < 0)
5854 exit(1);
5855
5856 module_call_init(MODULE_INIT_DEVICE);
5857
5858 if (qemu_opts_foreach(&qemu_device_opts, device_help_func, NULL, 0) != 0)
5859 exit(0);
5860
5861 if (watchdog) {
5862 i = select_watchdog(watchdog);
5863 if (i > 0)
5864 exit (i == 1 ? 1 : 0);
5865 }
5866
5867 if (machine->compat_props) {
5868 qdev_prop_register_global_list(machine->compat_props);
5869 }
5870 qemu_add_globals();
5871
5872 machine->init(ram_size, boot_devices,
5873 kernel_filename, kernel_cmdline, initrd_filename, cpu_model);
5874
5875
5876 #ifndef _WIN32
5877 /* must be after terminal init, SDL library changes signal handlers */
5878 sighandler_setup();
5879 #endif
5880
5881 for (env = first_cpu; env != NULL; env = env->next_cpu) {
5882 for (i = 0; i < nb_numa_nodes; i++) {
5883 if (node_cpumask[i] & (1 << env->cpu_index)) {
5884 env->numa_node = i;
5885 }
5886 }
5887 }
5888
5889 current_machine = machine;
5890
5891 /* init USB devices */
5892 if (usb_enabled) {
5893 if (foreach_device_config(DEV_USB, usb_parse) < 0)
5894 exit(1);
5895 }
5896
5897 /* init generic devices */
5898 if (qemu_opts_foreach(&qemu_device_opts, device_init_func, NULL, 1) != 0)
5899 exit(1);
5900
5901 if (!display_state)
5902 dumb_display_init();
5903 /* just use the first displaystate for the moment */
5904 ds = display_state;
5905
5906 if (display_type == DT_DEFAULT) {
5907 #if defined(CONFIG_SDL) || defined(CONFIG_COCOA)
5908 display_type = DT_SDL;
5909 #else
5910 display_type = DT_VNC;
5911 vnc_display = "localhost:0,to=99";
5912 show_vnc_port = 1;
5913 #endif
5914 }
5915
5916
5917 switch (display_type) {
5918 case DT_NOGRAPHIC:
5919 break;
5920 #if defined(CONFIG_CURSES)
5921 case DT_CURSES:
5922 curses_display_init(ds, full_screen);
5923 break;
5924 #endif
5925 #if defined(CONFIG_SDL)
5926 case DT_SDL:
5927 sdl_display_init(ds, full_screen, no_frame);
5928 break;
5929 #elif defined(CONFIG_COCOA)
5930 case DT_SDL:
5931 cocoa_display_init(ds, full_screen);
5932 break;
5933 #endif
5934 case DT_VNC:
5935 vnc_display_init(ds);
5936 if (vnc_display_open(ds, vnc_display) < 0)
5937 exit(1);
5938
5939 if (show_vnc_port) {
5940 printf("VNC server running on `%s'\n", vnc_display_local_addr(ds));
5941 }
5942 break;
5943 default:
5944 break;
5945 }
5946 dpy_resize(ds);
5947
5948 dcl = ds->listeners;
5949 while (dcl != NULL) {
5950 if (dcl->dpy_refresh != NULL) {
5951 ds->gui_timer = qemu_new_timer(rt_clock, gui_update, ds);
5952 qemu_mod_timer(ds->gui_timer, qemu_get_clock(rt_clock));
5953 }
5954 dcl = dcl->next;
5955 }
5956
5957 if (display_type == DT_NOGRAPHIC || display_type == DT_VNC) {
5958 nographic_timer = qemu_new_timer(rt_clock, nographic_update, NULL);
5959 qemu_mod_timer(nographic_timer, qemu_get_clock(rt_clock));
5960 }
5961
5962 text_consoles_set_display(display_state);
5963
5964 if (qemu_opts_foreach(&qemu_mon_opts, mon_init_func, NULL, 1) != 0)
5965 exit(1);
5966
5967 if (gdbstub_dev && gdbserver_start(gdbstub_dev) < 0) {
5968 fprintf(stderr, "qemu: could not open gdbserver on device '%s'\n",
5969 gdbstub_dev);
5970 exit(1);
5971 }
5972
5973 qdev_machine_creation_done();
5974
5975 if (rom_load_all() != 0) {
5976 fprintf(stderr, "rom loading failed\n");
5977 exit(1);
5978 }
5979
5980 qemu_system_reset();
5981 if (loadvm) {
5982 if (load_vmstate(cur_mon, loadvm) < 0) {
5983 autostart = 0;
5984 }
5985 }
5986
5987 if (incoming) {
5988 qemu_start_incoming_migration(incoming);
5989 } else if (autostart) {
5990 vm_start();
5991 }
5992
5993 #ifndef _WIN32
5994 if (daemonize) {
5995 uint8_t status = 0;
5996 ssize_t len;
5997
5998 again1:
5999 len = write(fds[1], &status, 1);
6000 if (len == -1 && (errno == EINTR))
6001 goto again1;
6002
6003 if (len != 1)
6004 exit(1);
6005
6006 if (chdir("/")) {
6007 perror("not able to chdir to /");
6008 exit(1);
6009 }
6010 TFR(fd = qemu_open("/dev/null", O_RDWR));
6011 if (fd == -1)
6012 exit(1);
6013 }
6014
6015 if (run_as) {
6016 pwd = getpwnam(run_as);
6017 if (!pwd) {
6018 fprintf(stderr, "User \"%s\" doesn't exist\n", run_as);
6019 exit(1);
6020 }
6021 }
6022
6023 if (chroot_dir) {
6024 if (chroot(chroot_dir) < 0) {
6025 fprintf(stderr, "chroot failed\n");
6026 exit(1);
6027 }
6028 if (chdir("/")) {
6029 perror("not able to chdir to /");
6030 exit(1);
6031 }
6032 }
6033
6034 if (run_as) {
6035 if (setgid(pwd->pw_gid) < 0) {
6036 fprintf(stderr, "Failed to setgid(%d)\n", pwd->pw_gid);
6037 exit(1);
6038 }
6039 if (setuid(pwd->pw_uid) < 0) {
6040 fprintf(stderr, "Failed to setuid(%d)\n", pwd->pw_uid);
6041 exit(1);
6042 }
6043 if (setuid(0) != -1) {
6044 fprintf(stderr, "Dropping privileges failed\n");
6045 exit(1);
6046 }
6047 }
6048
6049 if (daemonize) {
6050 dup2(fd, 0);
6051 dup2(fd, 1);
6052 dup2(fd, 2);
6053
6054 close(fd);
6055 }
6056 #endif
6057
6058 main_loop();
6059 quit_timers();
6060 net_cleanup();
6061
6062 return 0;
6063 }
QEmu