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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 | /* Needed early to override system queue definitions on BSD */ | |
35 | #include "sys-queue.h" | |
36 | ||
37 | #ifndef _WIN32 | |
38 | #include <libgen.h> | |
39 | #include <pwd.h> | |
40 | #include <sys/times.h> | |
41 | #include <sys/wait.h> | |
42 | #include <termios.h> | |
43 | #include <sys/mman.h> | |
44 | #include <sys/ioctl.h> | |
45 | #include <sys/resource.h> | |
46 | #include <sys/socket.h> | |
47 | #include <netinet/in.h> | |
48 | #include <net/if.h> | |
49 | #if defined(__NetBSD__) | |
50 | #include <net/if_tap.h> | |
51 | #endif | |
52 | #ifdef __linux__ | |
53 | #include <linux/if_tun.h> | |
54 | #endif | |
55 | #include <arpa/inet.h> | |
56 | #include <dirent.h> | |
57 | #include <netdb.h> | |
58 | #include <sys/select.h> | |
59 | #ifdef CONFIG_BSD | |
60 | #include <sys/stat.h> | |
61 | #if defined(__FreeBSD__) || defined(__DragonFly__) | |
62 | #include <libutil.h> | |
63 | #else | |
64 | #include <util.h> | |
65 | #endif | |
66 | #elif defined (__GLIBC__) && defined (__FreeBSD_kernel__) | |
67 | #include <freebsd/stdlib.h> | |
68 | #else | |
69 | #ifdef __linux__ | |
70 | #include <pty.h> | |
71 | #include <malloc.h> | |
72 | #include <linux/rtc.h> | |
73 | #include <sys/prctl.h> | |
74 | ||
75 | /* For the benefit of older linux systems which don't supply it, | |
76 | we use a local copy of hpet.h. */ | |
77 | /* #include <linux/hpet.h> */ | |
78 | #include "hpet.h" | |
79 | ||
80 | #include <linux/ppdev.h> | |
81 | #include <linux/parport.h> | |
82 | #endif | |
83 | #ifdef __sun__ | |
84 | #include <sys/stat.h> | |
85 | #include <sys/ethernet.h> | |
86 | #include <sys/sockio.h> | |
87 | #include <netinet/arp.h> | |
88 | #include <netinet/in.h> | |
89 | #include <netinet/in_systm.h> | |
90 | #include <netinet/ip.h> | |
91 | #include <netinet/ip_icmp.h> // must come after ip.h | |
92 | #include <netinet/udp.h> | |
93 | #include <netinet/tcp.h> | |
94 | #include <net/if.h> | |
95 | #include <syslog.h> | |
96 | #include <stropts.h> | |
97 | #endif | |
98 | #endif | |
99 | #endif | |
100 | ||
101 | #if defined(__OpenBSD__) | |
102 | #include <util.h> | |
103 | #endif | |
104 | ||
105 | #if defined(CONFIG_VDE) | |
106 | #include <libvdeplug.h> | |
107 | #endif | |
108 | ||
109 | #ifdef _WIN32 | |
110 | #include <windows.h> | |
111 | #include <mmsystem.h> | |
112 | #endif | |
113 | ||
114 | #ifdef CONFIG_SDL | |
115 | #if defined(__APPLE__) || defined(main) | |
116 | #include <SDL.h> | |
117 | int qemu_main(int argc, char **argv, char **envp); | |
118 | int main(int argc, char **argv) | |
119 | { | |
120 | return qemu_main(argc, argv, NULL); | |
121 | } | |
122 | #undef main | |
123 | #define main qemu_main | |
124 | #endif | |
125 | #endif /* CONFIG_SDL */ | |
126 | ||
127 | #ifdef CONFIG_COCOA | |
128 | #undef main | |
129 | #define main qemu_main | |
130 | #endif /* CONFIG_COCOA */ | |
131 | ||
132 | #include "hw/hw.h" | |
133 | #include "hw/boards.h" | |
134 | #include "hw/usb.h" | |
135 | #include "hw/pcmcia.h" | |
136 | #include "hw/pc.h" | |
137 | #include "hw/audiodev.h" | |
138 | #include "hw/isa.h" | |
139 | #include "hw/baum.h" | |
140 | #include "hw/bt.h" | |
141 | #include "hw/watchdog.h" | |
142 | #include "hw/smbios.h" | |
143 | #include "hw/xen.h" | |
144 | #include "hw/qdev.h" | |
145 | #include "bt-host.h" | |
146 | #include "net.h" | |
147 | #include "monitor.h" | |
148 | #include "console.h" | |
149 | #include "sysemu.h" | |
150 | #include "gdbstub.h" | |
151 | #include "qemu-timer.h" | |
152 | #include "qemu-char.h" | |
153 | #include "cache-utils.h" | |
154 | #include "block.h" | |
155 | #include "dma.h" | |
156 | #include "audio/audio.h" | |
157 | #include "migration.h" | |
158 | #include "kvm.h" | |
159 | #include "balloon.h" | |
160 | #include "qemu-option.h" | |
161 | #include "qemu-config.h" | |
162 | ||
163 | #include "disas.h" | |
164 | ||
165 | #include "exec-all.h" | |
166 | ||
167 | #include "qemu_socket.h" | |
168 | ||
169 | #include "slirp/libslirp.h" | |
170 | ||
171 | //#define DEBUG_NET | |
172 | //#define DEBUG_SLIRP | |
173 | ||
174 | #define DEFAULT_RAM_SIZE 128 | |
175 | ||
176 | static const char *data_dir; | |
177 | const char *bios_name = NULL; | |
178 | /* Note: drives_table[MAX_DRIVES] is a dummy block driver if none available | |
179 | to store the VM snapshots */ | |
180 | struct drivelist drives = TAILQ_HEAD_INITIALIZER(drives); | |
181 | struct driveoptlist driveopts = TAILQ_HEAD_INITIALIZER(driveopts); | |
182 | enum vga_retrace_method vga_retrace_method = VGA_RETRACE_DUMB; | |
183 | static DisplayState *display_state; | |
184 | DisplayType display_type = DT_DEFAULT; | |
185 | const char* keyboard_layout = NULL; | |
186 | int64_t ticks_per_sec; | |
187 | ram_addr_t ram_size; | |
188 | int nb_nics; | |
189 | NICInfo nd_table[MAX_NICS]; | |
190 | int vm_running; | |
191 | int autostart; | |
192 | static int rtc_utc = 1; | |
193 | static int rtc_date_offset = -1; /* -1 means no change */ | |
194 | int cirrus_vga_enabled = 1; | |
195 | int std_vga_enabled = 0; | |
196 | int vmsvga_enabled = 0; | |
197 | int xenfb_enabled = 0; | |
198 | #ifdef TARGET_SPARC | |
199 | int graphic_width = 1024; | |
200 | int graphic_height = 768; | |
201 | int graphic_depth = 8; | |
202 | #else | |
203 | int graphic_width = 800; | |
204 | int graphic_height = 600; | |
205 | int graphic_depth = 15; | |
206 | #endif | |
207 | static int full_screen = 0; | |
208 | #ifdef CONFIG_SDL | |
209 | static int no_frame = 0; | |
210 | #endif | |
211 | int no_quit = 0; | |
212 | CharDriverState *serial_hds[MAX_SERIAL_PORTS]; | |
213 | CharDriverState *parallel_hds[MAX_PARALLEL_PORTS]; | |
214 | CharDriverState *virtcon_hds[MAX_VIRTIO_CONSOLES]; | |
215 | #ifdef TARGET_I386 | |
216 | int win2k_install_hack = 0; | |
217 | int rtc_td_hack = 0; | |
218 | #endif | |
219 | int usb_enabled = 0; | |
220 | int singlestep = 0; | |
221 | int smp_cpus = 1; | |
222 | int max_cpus = 0; | |
223 | const char *vnc_display; | |
224 | int acpi_enabled = 1; | |
225 | int no_hpet = 0; | |
226 | int virtio_balloon = 1; | |
227 | const char *virtio_balloon_devaddr; | |
228 | int fd_bootchk = 1; | |
229 | int no_reboot = 0; | |
230 | int no_shutdown = 0; | |
231 | int cursor_hide = 1; | |
232 | int graphic_rotate = 0; | |
233 | #ifndef _WIN32 | |
234 | int daemonize = 0; | |
235 | #endif | |
236 | WatchdogTimerModel *watchdog = NULL; | |
237 | int watchdog_action = WDT_RESET; | |
238 | const char *option_rom[MAX_OPTION_ROMS]; | |
239 | int nb_option_roms; | |
240 | int semihosting_enabled = 0; | |
241 | #ifdef TARGET_ARM | |
242 | int old_param = 0; | |
243 | #endif | |
244 | const char *qemu_name; | |
245 | int alt_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 | /***********************************************************/ | |
275 | /* x86 ISA bus support */ | |
276 | ||
277 | target_phys_addr_t isa_mem_base = 0; | |
278 | PicState2 *isa_pic; | |
279 | ||
280 | /***********************************************************/ | |
281 | void hw_error(const char *fmt, ...) | |
282 | { | |
283 | va_list ap; | |
284 | CPUState *env; | |
285 | ||
286 | va_start(ap, fmt); | |
287 | fprintf(stderr, "qemu: hardware error: "); | |
288 | vfprintf(stderr, fmt, ap); | |
289 | fprintf(stderr, "\n"); | |
290 | for(env = first_cpu; env != NULL; env = env->next_cpu) { | |
291 | fprintf(stderr, "CPU #%d:\n", env->cpu_index); | |
292 | #ifdef TARGET_I386 | |
293 | cpu_dump_state(env, stderr, fprintf, X86_DUMP_FPU); | |
294 | #else | |
295 | cpu_dump_state(env, stderr, fprintf, 0); | |
296 | #endif | |
297 | } | |
298 | va_end(ap); | |
299 | abort(); | |
300 | } | |
301 | ||
302 | static void set_proc_name(const char *s) | |
303 | { | |
304 | #if defined(__linux__) && defined(PR_SET_NAME) | |
305 | char name[16]; | |
306 | if (!s) | |
307 | return; | |
308 | name[sizeof(name) - 1] = 0; | |
309 | strncpy(name, s, sizeof(name)); | |
310 | /* Could rewrite argv[0] too, but that's a bit more complicated. | |
311 | This simple way is enough for `top'. */ | |
312 | prctl(PR_SET_NAME, name); | |
313 | #endif | |
314 | } | |
315 | ||
316 | /***************/ | |
317 | /* ballooning */ | |
318 | ||
319 | static QEMUBalloonEvent *qemu_balloon_event; | |
320 | void *qemu_balloon_event_opaque; | |
321 | ||
322 | void qemu_add_balloon_handler(QEMUBalloonEvent *func, void *opaque) | |
323 | { | |
324 | qemu_balloon_event = func; | |
325 | qemu_balloon_event_opaque = opaque; | |
326 | } | |
327 | ||
328 | void qemu_balloon(ram_addr_t target) | |
329 | { | |
330 | if (qemu_balloon_event) | |
331 | qemu_balloon_event(qemu_balloon_event_opaque, target); | |
332 | } | |
333 | ||
334 | ram_addr_t qemu_balloon_status(void) | |
335 | { | |
336 | if (qemu_balloon_event) | |
337 | return qemu_balloon_event(qemu_balloon_event_opaque, 0); | |
338 | return 0; | |
339 | } | |
340 | ||
341 | /***********************************************************/ | |
342 | /* keyboard/mouse */ | |
343 | ||
344 | static QEMUPutKBDEvent *qemu_put_kbd_event; | |
345 | static void *qemu_put_kbd_event_opaque; | |
346 | static QEMUPutMouseEntry *qemu_put_mouse_event_head; | |
347 | static QEMUPutMouseEntry *qemu_put_mouse_event_current; | |
348 | ||
349 | void qemu_add_kbd_event_handler(QEMUPutKBDEvent *func, void *opaque) | |
350 | { | |
351 | qemu_put_kbd_event_opaque = opaque; | |
352 | qemu_put_kbd_event = func; | |
353 | } | |
354 | ||
355 | QEMUPutMouseEntry *qemu_add_mouse_event_handler(QEMUPutMouseEvent *func, | |
356 | void *opaque, int absolute, | |
357 | const char *name) | |
358 | { | |
359 | QEMUPutMouseEntry *s, *cursor; | |
360 | ||
361 | s = qemu_mallocz(sizeof(QEMUPutMouseEntry)); | |
362 | ||
363 | s->qemu_put_mouse_event = func; | |
364 | s->qemu_put_mouse_event_opaque = opaque; | |
365 | s->qemu_put_mouse_event_absolute = absolute; | |
366 | s->qemu_put_mouse_event_name = qemu_strdup(name); | |
367 | s->next = NULL; | |
368 | ||
369 | if (!qemu_put_mouse_event_head) { | |
370 | qemu_put_mouse_event_head = qemu_put_mouse_event_current = s; | |
371 | return s; | |
372 | } | |
373 | ||
374 | cursor = qemu_put_mouse_event_head; | |
375 | while (cursor->next != NULL) | |
376 | cursor = cursor->next; | |
377 | ||
378 | cursor->next = s; | |
379 | qemu_put_mouse_event_current = s; | |
380 | ||
381 | return s; | |
382 | } | |
383 | ||
384 | void qemu_remove_mouse_event_handler(QEMUPutMouseEntry *entry) | |
385 | { | |
386 | QEMUPutMouseEntry *prev = NULL, *cursor; | |
387 | ||
388 | if (!qemu_put_mouse_event_head || entry == NULL) | |
389 | return; | |
390 | ||
391 | cursor = qemu_put_mouse_event_head; | |
392 | while (cursor != NULL && cursor != entry) { | |
393 | prev = cursor; | |
394 | cursor = cursor->next; | |
395 | } | |
396 | ||
397 | if (cursor == NULL) // does not exist or list empty | |
398 | return; | |
399 | else if (prev == NULL) { // entry is head | |
400 | qemu_put_mouse_event_head = cursor->next; | |
401 | if (qemu_put_mouse_event_current == entry) | |
402 | qemu_put_mouse_event_current = cursor->next; | |
403 | qemu_free(entry->qemu_put_mouse_event_name); | |
404 | qemu_free(entry); | |
405 | return; | |
406 | } | |
407 | ||
408 | prev->next = entry->next; | |
409 | ||
410 | if (qemu_put_mouse_event_current == entry) | |
411 | qemu_put_mouse_event_current = prev; | |
412 | ||
413 | qemu_free(entry->qemu_put_mouse_event_name); | |
414 | qemu_free(entry); | |
415 | } | |
416 | ||
417 | void kbd_put_keycode(int keycode) | |
418 | { | |
419 | if (qemu_put_kbd_event) { | |
420 | qemu_put_kbd_event(qemu_put_kbd_event_opaque, keycode); | |
421 | } | |
422 | } | |
423 | ||
424 | void kbd_mouse_event(int dx, int dy, int dz, int buttons_state) | |
425 | { | |
426 | QEMUPutMouseEvent *mouse_event; | |
427 | void *mouse_event_opaque; | |
428 | int width; | |
429 | ||
430 | if (!qemu_put_mouse_event_current) { | |
431 | return; | |
432 | } | |
433 | ||
434 | mouse_event = | |
435 | qemu_put_mouse_event_current->qemu_put_mouse_event; | |
436 | mouse_event_opaque = | |
437 | qemu_put_mouse_event_current->qemu_put_mouse_event_opaque; | |
438 | ||
439 | if (mouse_event) { | |
440 | if (graphic_rotate) { | |
441 | if (qemu_put_mouse_event_current->qemu_put_mouse_event_absolute) | |
442 | width = 0x7fff; | |
443 | else | |
444 | width = graphic_width - 1; | |
445 | mouse_event(mouse_event_opaque, | |
446 | width - dy, dx, dz, buttons_state); | |
447 | } else | |
448 | mouse_event(mouse_event_opaque, | |
449 | dx, dy, dz, buttons_state); | |
450 | } | |
451 | } | |
452 | ||
453 | int kbd_mouse_is_absolute(void) | |
454 | { | |
455 | if (!qemu_put_mouse_event_current) | |
456 | return 0; | |
457 | ||
458 | return qemu_put_mouse_event_current->qemu_put_mouse_event_absolute; | |
459 | } | |
460 | ||
461 | void do_info_mice(Monitor *mon) | |
462 | { | |
463 | QEMUPutMouseEntry *cursor; | |
464 | int index = 0; | |
465 | ||
466 | if (!qemu_put_mouse_event_head) { | |
467 | monitor_printf(mon, "No mouse devices connected\n"); | |
468 | return; | |
469 | } | |
470 | ||
471 | monitor_printf(mon, "Mouse devices available:\n"); | |
472 | cursor = qemu_put_mouse_event_head; | |
473 | while (cursor != NULL) { | |
474 | monitor_printf(mon, "%c Mouse #%d: %s\n", | |
475 | (cursor == qemu_put_mouse_event_current ? '*' : ' '), | |
476 | index, cursor->qemu_put_mouse_event_name); | |
477 | index++; | |
478 | cursor = cursor->next; | |
479 | } | |
480 | } | |
481 | ||
482 | void do_mouse_set(Monitor *mon, int index) | |
483 | { | |
484 | QEMUPutMouseEntry *cursor; | |
485 | int i = 0; | |
486 | ||
487 | if (!qemu_put_mouse_event_head) { | |
488 | monitor_printf(mon, "No mouse devices connected\n"); | |
489 | return; | |
490 | } | |
491 | ||
492 | cursor = qemu_put_mouse_event_head; | |
493 | while (cursor != NULL && index != i) { | |
494 | i++; | |
495 | cursor = cursor->next; | |
496 | } | |
497 | ||
498 | if (cursor != NULL) | |
499 | qemu_put_mouse_event_current = cursor; | |
500 | else | |
501 | monitor_printf(mon, "Mouse at given index not found\n"); | |
502 | } | |
503 | ||
504 | /* compute with 96 bit intermediate result: (a*b)/c */ | |
505 | uint64_t muldiv64(uint64_t a, uint32_t b, uint32_t c) | |
506 | { | |
507 | union { | |
508 | uint64_t ll; | |
509 | struct { | |
510 | #ifdef HOST_WORDS_BIGENDIAN | |
511 | uint32_t high, low; | |
512 | #else | |
513 | uint32_t low, high; | |
514 | #endif | |
515 | } l; | |
516 | } u, res; | |
517 | uint64_t rl, rh; | |
518 | ||
519 | u.ll = a; | |
520 | rl = (uint64_t)u.l.low * (uint64_t)b; | |
521 | rh = (uint64_t)u.l.high * (uint64_t)b; | |
522 | rh += (rl >> 32); | |
523 | res.l.high = rh / c; | |
524 | res.l.low = (((rh % c) << 32) + (rl & 0xffffffff)) / c; | |
525 | return res.ll; | |
526 | } | |
527 | ||
528 | /***********************************************************/ | |
529 | /* real time host monotonic timer */ | |
530 | ||
531 | #define QEMU_TIMER_BASE 1000000000LL | |
532 | ||
533 | #ifdef WIN32 | |
534 | ||
535 | static int64_t clock_freq; | |
536 | ||
537 | static void init_get_clock(void) | |
538 | { | |
539 | LARGE_INTEGER freq; | |
540 | int ret; | |
541 | ret = QueryPerformanceFrequency(&freq); | |
542 | if (ret == 0) { | |
543 | fprintf(stderr, "Could not calibrate ticks\n"); | |
544 | exit(1); | |
545 | } | |
546 | clock_freq = freq.QuadPart; | |
547 | } | |
548 | ||
549 | static int64_t get_clock(void) | |
550 | { | |
551 | LARGE_INTEGER ti; | |
552 | QueryPerformanceCounter(&ti); | |
553 | return muldiv64(ti.QuadPart, QEMU_TIMER_BASE, clock_freq); | |
554 | } | |
555 | ||
556 | #else | |
557 | ||
558 | static int use_rt_clock; | |
559 | ||
560 | static void init_get_clock(void) | |
561 | { | |
562 | use_rt_clock = 0; | |
563 | #if defined(__linux__) || (defined(__FreeBSD__) && __FreeBSD_version >= 500000) \ | |
564 | || defined(__DragonFly__) | |
565 | { | |
566 | struct timespec ts; | |
567 | if (clock_gettime(CLOCK_MONOTONIC, &ts) == 0) { | |
568 | use_rt_clock = 1; | |
569 | } | |
570 | } | |
571 | #endif | |
572 | } | |
573 | ||
574 | static int64_t get_clock(void) | |
575 | { | |
576 | #if defined(__linux__) || (defined(__FreeBSD__) && __FreeBSD_version >= 500000) \ | |
577 | || defined(__DragonFly__) | |
578 | if (use_rt_clock) { | |
579 | struct timespec ts; | |
580 | clock_gettime(CLOCK_MONOTONIC, &ts); | |
581 | return ts.tv_sec * 1000000000LL + ts.tv_nsec; | |
582 | } else | |
583 | #endif | |
584 | { | |
585 | /* XXX: using gettimeofday leads to problems if the date | |
586 | changes, so it should be avoided. */ | |
587 | struct timeval tv; | |
588 | gettimeofday(&tv, NULL); | |
589 | return tv.tv_sec * 1000000000LL + (tv.tv_usec * 1000); | |
590 | } | |
591 | } | |
592 | #endif | |
593 | ||
594 | /* Return the virtual CPU time, based on the instruction counter. */ | |
595 | static int64_t cpu_get_icount(void) | |
596 | { | |
597 | int64_t icount; | |
598 | CPUState *env = cpu_single_env;; | |
599 | icount = qemu_icount; | |
600 | if (env) { | |
601 | if (!can_do_io(env)) | |
602 | fprintf(stderr, "Bad clock read\n"); | |
603 | icount -= (env->icount_decr.u16.low + env->icount_extra); | |
604 | } | |
605 | return qemu_icount_bias + (icount << icount_time_shift); | |
606 | } | |
607 | ||
608 | /***********************************************************/ | |
609 | /* guest cycle counter */ | |
610 | ||
611 | static int64_t cpu_ticks_prev; | |
612 | static int64_t cpu_ticks_offset; | |
613 | static int64_t cpu_clock_offset; | |
614 | static int cpu_ticks_enabled; | |
615 | ||
616 | /* return the host CPU cycle counter and handle stop/restart */ | |
617 | int64_t cpu_get_ticks(void) | |
618 | { | |
619 | if (use_icount) { | |
620 | return cpu_get_icount(); | |
621 | } | |
622 | if (!cpu_ticks_enabled) { | |
623 | return cpu_ticks_offset; | |
624 | } else { | |
625 | int64_t ticks; | |
626 | ticks = cpu_get_real_ticks(); | |
627 | if (cpu_ticks_prev > ticks) { | |
628 | /* Note: non increasing ticks may happen if the host uses | |
629 | software suspend */ | |
630 | cpu_ticks_offset += cpu_ticks_prev - ticks; | |
631 | } | |
632 | cpu_ticks_prev = ticks; | |
633 | return ticks + cpu_ticks_offset; | |
634 | } | |
635 | } | |
636 | ||
637 | /* return the host CPU monotonic timer and handle stop/restart */ | |
638 | static int64_t cpu_get_clock(void) | |
639 | { | |
640 | int64_t ti; | |
641 | if (!cpu_ticks_enabled) { | |
642 | return cpu_clock_offset; | |
643 | } else { | |
644 | ti = get_clock(); | |
645 | return ti + cpu_clock_offset; | |
646 | } | |
647 | } | |
648 | ||
649 | /* enable cpu_get_ticks() */ | |
650 | void cpu_enable_ticks(void) | |
651 | { | |
652 | if (!cpu_ticks_enabled) { | |
653 | cpu_ticks_offset -= cpu_get_real_ticks(); | |
654 | cpu_clock_offset -= get_clock(); | |
655 | cpu_ticks_enabled = 1; | |
656 | } | |
657 | } | |
658 | ||
659 | /* disable cpu_get_ticks() : the clock is stopped. You must not call | |
660 | cpu_get_ticks() after that. */ | |
661 | void cpu_disable_ticks(void) | |
662 | { | |
663 | if (cpu_ticks_enabled) { | |
664 | cpu_ticks_offset = cpu_get_ticks(); | |
665 | cpu_clock_offset = cpu_get_clock(); | |
666 | cpu_ticks_enabled = 0; | |
667 | } | |
668 | } | |
669 | ||
670 | /***********************************************************/ | |
671 | /* timers */ | |
672 | ||
673 | #define QEMU_TIMER_REALTIME 0 | |
674 | #define QEMU_TIMER_VIRTUAL 1 | |
675 | ||
676 | struct QEMUClock { | |
677 | int type; | |
678 | /* XXX: add frequency */ | |
679 | }; | |
680 | ||
681 | struct QEMUTimer { | |
682 | QEMUClock *clock; | |
683 | int64_t expire_time; | |
684 | QEMUTimerCB *cb; | |
685 | void *opaque; | |
686 | struct QEMUTimer *next; | |
687 | }; | |
688 | ||
689 | struct qemu_alarm_timer { | |
690 | char const *name; | |
691 | unsigned int flags; | |
692 | ||
693 | int (*start)(struct qemu_alarm_timer *t); | |
694 | void (*stop)(struct qemu_alarm_timer *t); | |
695 | void (*rearm)(struct qemu_alarm_timer *t); | |
696 | void *priv; | |
697 | }; | |
698 | ||
699 | #define ALARM_FLAG_DYNTICKS 0x1 | |
700 | #define ALARM_FLAG_EXPIRED 0x2 | |
701 | ||
702 | static inline int alarm_has_dynticks(struct qemu_alarm_timer *t) | |
703 | { | |
704 | return t && (t->flags & ALARM_FLAG_DYNTICKS); | |
705 | } | |
706 | ||
707 | static void qemu_rearm_alarm_timer(struct qemu_alarm_timer *t) | |
708 | { | |
709 | if (!alarm_has_dynticks(t)) | |
710 | return; | |
711 | ||
712 | t->rearm(t); | |
713 | } | |
714 | ||
715 | /* TODO: MIN_TIMER_REARM_US should be optimized */ | |
716 | #define MIN_TIMER_REARM_US 250 | |
717 | ||
718 | static struct qemu_alarm_timer *alarm_timer; | |
719 | ||
720 | #ifdef _WIN32 | |
721 | ||
722 | struct qemu_alarm_win32 { | |
723 | MMRESULT timerId; | |
724 | unsigned int period; | |
725 | } alarm_win32_data = {0, -1}; | |
726 | ||
727 | static int win32_start_timer(struct qemu_alarm_timer *t); | |
728 | static void win32_stop_timer(struct qemu_alarm_timer *t); | |
729 | static void win32_rearm_timer(struct qemu_alarm_timer *t); | |
730 | ||
731 | #else | |
732 | ||
733 | static int unix_start_timer(struct qemu_alarm_timer *t); | |
734 | static void unix_stop_timer(struct qemu_alarm_timer *t); | |
735 | ||
736 | #ifdef __linux__ | |
737 | ||
738 | static int dynticks_start_timer(struct qemu_alarm_timer *t); | |
739 | static void dynticks_stop_timer(struct qemu_alarm_timer *t); | |
740 | static void dynticks_rearm_timer(struct qemu_alarm_timer *t); | |
741 | ||
742 | static int hpet_start_timer(struct qemu_alarm_timer *t); | |
743 | static void hpet_stop_timer(struct qemu_alarm_timer *t); | |
744 | ||
745 | static int rtc_start_timer(struct qemu_alarm_timer *t); | |
746 | static void rtc_stop_timer(struct qemu_alarm_timer *t); | |
747 | ||
748 | #endif /* __linux__ */ | |
749 | ||
750 | #endif /* _WIN32 */ | |
751 | ||
752 | /* Correlation between real and virtual time is always going to be | |
753 | fairly approximate, so ignore small variation. | |
754 | When the guest is idle real and virtual time will be aligned in | |
755 | the IO wait loop. */ | |
756 | #define ICOUNT_WOBBLE (QEMU_TIMER_BASE / 10) | |
757 | ||
758 | static void icount_adjust(void) | |
759 | { | |
760 | int64_t cur_time; | |
761 | int64_t cur_icount; | |
762 | int64_t delta; | |
763 | static int64_t last_delta; | |
764 | /* If the VM is not running, then do nothing. */ | |
765 | if (!vm_running) | |
766 | return; | |
767 | ||
768 | cur_time = cpu_get_clock(); | |
769 | cur_icount = qemu_get_clock(vm_clock); | |
770 | delta = cur_icount - cur_time; | |
771 | /* FIXME: This is a very crude algorithm, somewhat prone to oscillation. */ | |
772 | if (delta > 0 | |
773 | && last_delta + ICOUNT_WOBBLE < delta * 2 | |
774 | && icount_time_shift > 0) { | |
775 | /* The guest is getting too far ahead. Slow time down. */ | |
776 | icount_time_shift--; | |
777 | } | |
778 | if (delta < 0 | |
779 | && last_delta - ICOUNT_WOBBLE > delta * 2 | |
780 | && icount_time_shift < MAX_ICOUNT_SHIFT) { | |
781 | /* The guest is getting too far behind. Speed time up. */ | |
782 | icount_time_shift++; | |
783 | } | |
784 | last_delta = delta; | |
785 | qemu_icount_bias = cur_icount - (qemu_icount << icount_time_shift); | |
786 | } | |
787 | ||
788 | static void icount_adjust_rt(void * opaque) | |
789 | { | |
790 | qemu_mod_timer(icount_rt_timer, | |
791 | qemu_get_clock(rt_clock) + 1000); | |
792 | icount_adjust(); | |
793 | } | |
794 | ||
795 | static void icount_adjust_vm(void * opaque) | |
796 | { | |
797 | qemu_mod_timer(icount_vm_timer, | |
798 | qemu_get_clock(vm_clock) + QEMU_TIMER_BASE / 10); | |
799 | icount_adjust(); | |
800 | } | |
801 | ||
802 | static void init_icount_adjust(void) | |
803 | { | |
804 | /* Have both realtime and virtual time triggers for speed adjustment. | |
805 | The realtime trigger catches emulated time passing too slowly, | |
806 | the virtual time trigger catches emulated time passing too fast. | |
807 | Realtime triggers occur even when idle, so use them less frequently | |
808 | than VM triggers. */ | |
809 | icount_rt_timer = qemu_new_timer(rt_clock, icount_adjust_rt, NULL); | |
810 | qemu_mod_timer(icount_rt_timer, | |
811 | qemu_get_clock(rt_clock) + 1000); | |
812 | icount_vm_timer = qemu_new_timer(vm_clock, icount_adjust_vm, NULL); | |
813 | qemu_mod_timer(icount_vm_timer, | |
814 | qemu_get_clock(vm_clock) + QEMU_TIMER_BASE / 10); | |
815 | } | |
816 | ||
817 | static struct qemu_alarm_timer alarm_timers[] = { | |
818 | #ifndef _WIN32 | |
819 | #ifdef __linux__ | |
820 | {"dynticks", ALARM_FLAG_DYNTICKS, dynticks_start_timer, | |
821 | dynticks_stop_timer, dynticks_rearm_timer, NULL}, | |
822 | /* HPET - if available - is preferred */ | |
823 | {"hpet", 0, hpet_start_timer, hpet_stop_timer, NULL, NULL}, | |
824 | /* ...otherwise try RTC */ | |
825 | {"rtc", 0, rtc_start_timer, rtc_stop_timer, NULL, NULL}, | |
826 | #endif | |
827 | {"unix", 0, unix_start_timer, unix_stop_timer, NULL, NULL}, | |
828 | #else | |
829 | {"dynticks", ALARM_FLAG_DYNTICKS, win32_start_timer, | |
830 | win32_stop_timer, win32_rearm_timer, &alarm_win32_data}, | |
831 | {"win32", 0, win32_start_timer, | |
832 | win32_stop_timer, NULL, &alarm_win32_data}, | |
833 | #endif | |
834 | {NULL, } | |
835 | }; | |
836 | ||
837 | static void show_available_alarms(void) | |
838 | { | |
839 | int i; | |
840 | ||
841 | printf("Available alarm timers, in order of precedence:\n"); | |
842 | for (i = 0; alarm_timers[i].name; i++) | |
843 | printf("%s\n", alarm_timers[i].name); | |
844 | } | |
845 | ||
846 | static void configure_alarms(char const *opt) | |
847 | { | |
848 | int i; | |
849 | int cur = 0; | |
850 | int count = ARRAY_SIZE(alarm_timers) - 1; | |
851 | char *arg; | |
852 | char *name; | |
853 | struct qemu_alarm_timer tmp; | |
854 | ||
855 | if (!strcmp(opt, "?")) { | |
856 | show_available_alarms(); | |
857 | exit(0); | |
858 | } | |
859 | ||
860 | arg = strdup(opt); | |
861 | ||
862 | /* Reorder the array */ | |
863 | name = strtok(arg, ","); | |
864 | while (name) { | |
865 | for (i = 0; i < count && alarm_timers[i].name; i++) { | |
866 | if (!strcmp(alarm_timers[i].name, name)) | |
867 | break; | |
868 | } | |
869 | ||
870 | if (i == count) { | |
871 | fprintf(stderr, "Unknown clock %s\n", name); | |
872 | goto next; | |
873 | } | |
874 | ||
875 | if (i < cur) | |
876 | /* Ignore */ | |
877 | goto next; | |
878 | ||
879 | /* Swap */ | |
880 | tmp = alarm_timers[i]; | |
881 | alarm_timers[i] = alarm_timers[cur]; | |
882 | alarm_timers[cur] = tmp; | |
883 | ||
884 | cur++; | |
885 | next: | |
886 | name = strtok(NULL, ","); | |
887 | } | |
888 | ||
889 | free(arg); | |
890 | ||
891 | if (cur) { | |
892 | /* Disable remaining timers */ | |
893 | for (i = cur; i < count; i++) | |
894 | alarm_timers[i].name = NULL; | |
895 | } else { | |
896 | show_available_alarms(); | |
897 | exit(1); | |
898 | } | |
899 | } | |
900 | ||
901 | QEMUClock *rt_clock; | |
902 | QEMUClock *vm_clock; | |
903 | ||
904 | static QEMUTimer *active_timers[2]; | |
905 | ||
906 | static QEMUClock *qemu_new_clock(int type) | |
907 | { | |
908 | QEMUClock *clock; | |
909 | clock = qemu_mallocz(sizeof(QEMUClock)); | |
910 | clock->type = type; | |
911 | return clock; | |
912 | } | |
913 | ||
914 | QEMUTimer *qemu_new_timer(QEMUClock *clock, QEMUTimerCB *cb, void *opaque) | |
915 | { | |
916 | QEMUTimer *ts; | |
917 | ||
918 | ts = qemu_mallocz(sizeof(QEMUTimer)); | |
919 | ts->clock = clock; | |
920 | ts->cb = cb; | |
921 | ts->opaque = opaque; | |
922 | return ts; | |
923 | } | |
924 | ||
925 | void qemu_free_timer(QEMUTimer *ts) | |
926 | { | |
927 | qemu_free(ts); | |
928 | } | |
929 | ||
930 | /* stop a timer, but do not dealloc it */ | |
931 | void qemu_del_timer(QEMUTimer *ts) | |
932 | { | |
933 | QEMUTimer **pt, *t; | |
934 | ||
935 | /* NOTE: this code must be signal safe because | |
936 | qemu_timer_expired() can be called from a signal. */ | |
937 | pt = &active_timers[ts->clock->type]; | |
938 | for(;;) { | |
939 | t = *pt; | |
940 | if (!t) | |
941 | break; | |
942 | if (t == ts) { | |
943 | *pt = t->next; | |
944 | break; | |
945 | } | |
946 | pt = &t->next; | |
947 | } | |
948 | } | |
949 | ||
950 | /* modify the current timer so that it will be fired when current_time | |
951 | >= expire_time. The corresponding callback will be called. */ | |
952 | void qemu_mod_timer(QEMUTimer *ts, int64_t expire_time) | |
953 | { | |
954 | QEMUTimer **pt, *t; | |
955 | ||
956 | qemu_del_timer(ts); | |
957 | ||
958 | /* add the timer in the sorted list */ | |
959 | /* NOTE: this code must be signal safe because | |
960 | qemu_timer_expired() can be called from a signal. */ | |
961 | pt = &active_timers[ts->clock->type]; | |
962 | for(;;) { | |
963 | t = *pt; | |
964 | if (!t) | |
965 | break; | |
966 | if (t->expire_time > expire_time) | |
967 | break; | |
968 | pt = &t->next; | |
969 | } | |
970 | ts->expire_time = expire_time; | |
971 | ts->next = *pt; | |
972 | *pt = ts; | |
973 | ||
974 | /* Rearm if necessary */ | |
975 | if (pt == &active_timers[ts->clock->type]) { | |
976 | if ((alarm_timer->flags & ALARM_FLAG_EXPIRED) == 0) { | |
977 | qemu_rearm_alarm_timer(alarm_timer); | |
978 | } | |
979 | /* Interrupt execution to force deadline recalculation. */ | |
980 | if (use_icount) | |
981 | qemu_notify_event(); | |
982 | } | |
983 | } | |
984 | ||
985 | int qemu_timer_pending(QEMUTimer *ts) | |
986 | { | |
987 | QEMUTimer *t; | |
988 | for(t = active_timers[ts->clock->type]; t != NULL; t = t->next) { | |
989 | if (t == ts) | |
990 | return 1; | |
991 | } | |
992 | return 0; | |
993 | } | |
994 | ||
995 | int qemu_timer_expired(QEMUTimer *timer_head, int64_t current_time) | |
996 | { | |
997 | if (!timer_head) | |
998 | return 0; | |
999 | return (timer_head->expire_time <= current_time); | |
1000 | } | |
1001 | ||
1002 | static void qemu_run_timers(QEMUTimer **ptimer_head, int64_t current_time) | |
1003 | { | |
1004 | QEMUTimer *ts; | |
1005 | ||
1006 | for(;;) { | |
1007 | ts = *ptimer_head; | |
1008 | if (!ts || ts->expire_time > current_time) | |
1009 | break; | |
1010 | /* remove timer from the list before calling the callback */ | |
1011 | *ptimer_head = ts->next; | |
1012 | ts->next = NULL; | |
1013 | ||
1014 | /* run the callback (the timer list can be modified) */ | |
1015 | ts->cb(ts->opaque); | |
1016 | } | |
1017 | } | |
1018 | ||
1019 | int64_t qemu_get_clock(QEMUClock *clock) | |
1020 | { | |
1021 | switch(clock->type) { | |
1022 | case QEMU_TIMER_REALTIME: | |
1023 | return get_clock() / 1000000; | |
1024 | default: | |
1025 | case QEMU_TIMER_VIRTUAL: | |
1026 | if (use_icount) { | |
1027 | return cpu_get_icount(); | |
1028 | } else { | |
1029 | return cpu_get_clock(); | |
1030 | } | |
1031 | } | |
1032 | } | |
1033 | ||
1034 | static void init_timers(void) | |
1035 | { | |
1036 | init_get_clock(); | |
1037 | ticks_per_sec = QEMU_TIMER_BASE; | |
1038 | rt_clock = qemu_new_clock(QEMU_TIMER_REALTIME); | |
1039 | vm_clock = qemu_new_clock(QEMU_TIMER_VIRTUAL); | |
1040 | } | |
1041 | ||
1042 | /* save a timer */ | |
1043 | void qemu_put_timer(QEMUFile *f, QEMUTimer *ts) | |
1044 | { | |
1045 | uint64_t expire_time; | |
1046 | ||
1047 | if (qemu_timer_pending(ts)) { | |
1048 | expire_time = ts->expire_time; | |
1049 | } else { | |
1050 | expire_time = -1; | |
1051 | } | |
1052 | qemu_put_be64(f, expire_time); | |
1053 | } | |
1054 | ||
1055 | void qemu_get_timer(QEMUFile *f, QEMUTimer *ts) | |
1056 | { | |
1057 | uint64_t expire_time; | |
1058 | ||
1059 | expire_time = qemu_get_be64(f); | |
1060 | if (expire_time != -1) { | |
1061 | qemu_mod_timer(ts, expire_time); | |
1062 | } else { | |
1063 | qemu_del_timer(ts); | |
1064 | } | |
1065 | } | |
1066 | ||
1067 | static void timer_save(QEMUFile *f, void *opaque) | |
1068 | { | |
1069 | if (cpu_ticks_enabled) { | |
1070 | hw_error("cannot save state if virtual timers are running"); | |
1071 | } | |
1072 | qemu_put_be64(f, cpu_ticks_offset); | |
1073 | qemu_put_be64(f, ticks_per_sec); | |
1074 | qemu_put_be64(f, cpu_clock_offset); | |
1075 | } | |
1076 | ||
1077 | static int timer_load(QEMUFile *f, void *opaque, int version_id) | |
1078 | { | |
1079 | if (version_id != 1 && version_id != 2) | |
1080 | return -EINVAL; | |
1081 | if (cpu_ticks_enabled) { | |
1082 | return -EINVAL; | |
1083 | } | |
1084 | cpu_ticks_offset=qemu_get_be64(f); | |
1085 | ticks_per_sec=qemu_get_be64(f); | |
1086 | if (version_id == 2) { | |
1087 | cpu_clock_offset=qemu_get_be64(f); | |
1088 | } | |
1089 | return 0; | |
1090 | } | |
1091 | ||
1092 | static void qemu_event_increment(void); | |
1093 | ||
1094 | #ifdef _WIN32 | |
1095 | static void CALLBACK host_alarm_handler(UINT uTimerID, UINT uMsg, | |
1096 | DWORD_PTR dwUser, DWORD_PTR dw1, | |
1097 | DWORD_PTR dw2) | |
1098 | #else | |
1099 | static void host_alarm_handler(int host_signum) | |
1100 | #endif | |
1101 | { | |
1102 | #if 0 | |
1103 | #define DISP_FREQ 1000 | |
1104 | { | |
1105 | static int64_t delta_min = INT64_MAX; | |
1106 | static int64_t delta_max, delta_cum, last_clock, delta, ti; | |
1107 | static int count; | |
1108 | ti = qemu_get_clock(vm_clock); | |
1109 | if (last_clock != 0) { | |
1110 | delta = ti - last_clock; | |
1111 | if (delta < delta_min) | |
1112 | delta_min = delta; | |
1113 | if (delta > delta_max) | |
1114 | delta_max = delta; | |
1115 | delta_cum += delta; | |
1116 | if (++count == DISP_FREQ) { | |
1117 | printf("timer: min=%" PRId64 " us max=%" PRId64 " us avg=%" PRId64 " us avg_freq=%0.3f Hz\n", | |
1118 | muldiv64(delta_min, 1000000, ticks_per_sec), | |
1119 | muldiv64(delta_max, 1000000, ticks_per_sec), | |
1120 | muldiv64(delta_cum, 1000000 / DISP_FREQ, ticks_per_sec), | |
1121 | (double)ticks_per_sec / ((double)delta_cum / DISP_FREQ)); | |
1122 | count = 0; | |
1123 | delta_min = INT64_MAX; | |
1124 | delta_max = 0; | |
1125 | delta_cum = 0; | |
1126 | } | |
1127 | } | |
1128 | last_clock = ti; | |
1129 | } | |
1130 | #endif | |
1131 | if (alarm_has_dynticks(alarm_timer) || | |
1132 | (!use_icount && | |
1133 | qemu_timer_expired(active_timers[QEMU_TIMER_VIRTUAL], | |
1134 | qemu_get_clock(vm_clock))) || | |
1135 | qemu_timer_expired(active_timers[QEMU_TIMER_REALTIME], | |
1136 | qemu_get_clock(rt_clock))) { | |
1137 | qemu_event_increment(); | |
1138 | if (alarm_timer) alarm_timer->flags |= ALARM_FLAG_EXPIRED; | |
1139 | ||
1140 | #ifndef CONFIG_IOTHREAD | |
1141 | if (next_cpu) { | |
1142 | /* stop the currently executing cpu because a timer occured */ | |
1143 | cpu_exit(next_cpu); | |
1144 | #ifdef CONFIG_KQEMU | |
1145 | if (next_cpu->kqemu_enabled) { | |
1146 | kqemu_cpu_interrupt(next_cpu); | |
1147 | } | |
1148 | #endif | |
1149 | } | |
1150 | #endif | |
1151 | timer_alarm_pending = 1; | |
1152 | qemu_notify_event(); | |
1153 | } | |
1154 | } | |
1155 | ||
1156 | static int64_t qemu_next_deadline(void) | |
1157 | { | |
1158 | int64_t delta; | |
1159 | ||
1160 | if (active_timers[QEMU_TIMER_VIRTUAL]) { | |
1161 | delta = active_timers[QEMU_TIMER_VIRTUAL]->expire_time - | |
1162 | qemu_get_clock(vm_clock); | |
1163 | } else { | |
1164 | /* To avoid problems with overflow limit this to 2^32. */ | |
1165 | delta = INT32_MAX; | |
1166 | } | |
1167 | ||
1168 | if (delta < 0) | |
1169 | delta = 0; | |
1170 | ||
1171 | return delta; | |
1172 | } | |
1173 | ||
1174 | #if defined(__linux__) || defined(_WIN32) | |
1175 | static uint64_t qemu_next_deadline_dyntick(void) | |
1176 | { | |
1177 | int64_t delta; | |
1178 | int64_t rtdelta; | |
1179 | ||
1180 | if (use_icount) | |
1181 | delta = INT32_MAX; | |
1182 | else | |
1183 | delta = (qemu_next_deadline() + 999) / 1000; | |
1184 | ||
1185 | if (active_timers[QEMU_TIMER_REALTIME]) { | |
1186 | rtdelta = (active_timers[QEMU_TIMER_REALTIME]->expire_time - | |
1187 | qemu_get_clock(rt_clock))*1000; | |
1188 | if (rtdelta < delta) | |
1189 | delta = rtdelta; | |
1190 | } | |
1191 | ||
1192 | if (delta < MIN_TIMER_REARM_US) | |
1193 | delta = MIN_TIMER_REARM_US; | |
1194 | ||
1195 | return delta; | |
1196 | } | |
1197 | #endif | |
1198 | ||
1199 | #ifndef _WIN32 | |
1200 | ||
1201 | /* Sets a specific flag */ | |
1202 | static int fcntl_setfl(int fd, int flag) | |
1203 | { | |
1204 | int flags; | |
1205 | ||
1206 | flags = fcntl(fd, F_GETFL); | |
1207 | if (flags == -1) | |
1208 | return -errno; | |
1209 | ||
1210 | if (fcntl(fd, F_SETFL, flags | flag) == -1) | |
1211 | return -errno; | |
1212 | ||
1213 | return 0; | |
1214 | } | |
1215 | ||
1216 | #if defined(__linux__) | |
1217 | ||
1218 | #define RTC_FREQ 1024 | |
1219 | ||
1220 | static void enable_sigio_timer(int fd) | |
1221 | { | |
1222 | struct sigaction act; | |
1223 | ||
1224 | /* timer signal */ | |
1225 | sigfillset(&act.sa_mask); | |
1226 | act.sa_flags = 0; | |
1227 | act.sa_handler = host_alarm_handler; | |
1228 | ||
1229 | sigaction(SIGIO, &act, NULL); | |
1230 | fcntl_setfl(fd, O_ASYNC); | |
1231 | fcntl(fd, F_SETOWN, getpid()); | |
1232 | } | |
1233 | ||
1234 | static int hpet_start_timer(struct qemu_alarm_timer *t) | |
1235 | { | |
1236 | struct hpet_info info; | |
1237 | int r, fd; | |
1238 | ||
1239 | fd = open("/dev/hpet", O_RDONLY); | |
1240 | if (fd < 0) | |
1241 | return -1; | |
1242 | ||
1243 | /* Set frequency */ | |
1244 | r = ioctl(fd, HPET_IRQFREQ, RTC_FREQ); | |
1245 | if (r < 0) { | |
1246 | fprintf(stderr, "Could not configure '/dev/hpet' to have a 1024Hz timer. This is not a fatal\n" | |
1247 | "error, but for better emulation accuracy type:\n" | |
1248 | "'echo 1024 > /proc/sys/dev/hpet/max-user-freq' as root.\n"); | |
1249 | goto fail; | |
1250 | } | |
1251 | ||
1252 | /* Check capabilities */ | |
1253 | r = ioctl(fd, HPET_INFO, &info); | |
1254 | if (r < 0) | |
1255 | goto fail; | |
1256 | ||
1257 | /* Enable periodic mode */ | |
1258 | r = ioctl(fd, HPET_EPI, 0); | |
1259 | if (info.hi_flags && (r < 0)) | |
1260 | goto fail; | |
1261 | ||
1262 | /* Enable interrupt */ | |
1263 | r = ioctl(fd, HPET_IE_ON, 0); | |
1264 | if (r < 0) | |
1265 | goto fail; | |
1266 | ||
1267 | enable_sigio_timer(fd); | |
1268 | t->priv = (void *)(long)fd; | |
1269 | ||
1270 | return 0; | |
1271 | fail: | |
1272 | close(fd); | |
1273 | return -1; | |
1274 | } | |
1275 | ||
1276 | static void hpet_stop_timer(struct qemu_alarm_timer *t) | |
1277 | { | |
1278 | int fd = (long)t->priv; | |
1279 | ||
1280 | close(fd); | |
1281 | } | |
1282 | ||
1283 | static int rtc_start_timer(struct qemu_alarm_timer *t) | |
1284 | { | |
1285 | int rtc_fd; | |
1286 | unsigned long current_rtc_freq = 0; | |
1287 | ||
1288 | TFR(rtc_fd = open("/dev/rtc", O_RDONLY)); | |
1289 | if (rtc_fd < 0) | |
1290 | return -1; | |
1291 | ioctl(rtc_fd, RTC_IRQP_READ, ¤t_rtc_freq); | |
1292 | if (current_rtc_freq != RTC_FREQ && | |
1293 | ioctl(rtc_fd, RTC_IRQP_SET, RTC_FREQ) < 0) { | |
1294 | fprintf(stderr, "Could not configure '/dev/rtc' to have a 1024 Hz timer. This is not a fatal\n" | |
1295 | "error, but for better emulation accuracy either use a 2.6 host Linux kernel or\n" | |
1296 | "type 'echo 1024 > /proc/sys/dev/rtc/max-user-freq' as root.\n"); | |
1297 | goto fail; | |
1298 | } | |
1299 | if (ioctl(rtc_fd, RTC_PIE_ON, 0) < 0) { | |
1300 | fail: | |
1301 | close(rtc_fd); | |
1302 | return -1; | |
1303 | } | |
1304 | ||
1305 | enable_sigio_timer(rtc_fd); | |
1306 | ||
1307 | t->priv = (void *)(long)rtc_fd; | |
1308 | ||
1309 | return 0; | |
1310 | } | |
1311 | ||
1312 | static void rtc_stop_timer(struct qemu_alarm_timer *t) | |
1313 | { | |
1314 | int rtc_fd = (long)t->priv; | |
1315 | ||
1316 | close(rtc_fd); | |
1317 | } | |
1318 | ||
1319 | static int dynticks_start_timer(struct qemu_alarm_timer *t) | |
1320 | { | |
1321 | struct sigevent ev; | |
1322 | timer_t host_timer; | |
1323 | struct sigaction act; | |
1324 | ||
1325 | sigfillset(&act.sa_mask); | |
1326 | act.sa_flags = 0; | |
1327 | act.sa_handler = host_alarm_handler; | |
1328 | ||
1329 | sigaction(SIGALRM, &act, NULL); | |
1330 | ||
1331 | /* | |
1332 | * Initialize ev struct to 0 to avoid valgrind complaining | |
1333 | * about uninitialized data in timer_create call | |
1334 | */ | |
1335 | memset(&ev, 0, sizeof(ev)); | |
1336 | ev.sigev_value.sival_int = 0; | |
1337 | ev.sigev_notify = SIGEV_SIGNAL; | |
1338 | ev.sigev_signo = SIGALRM; | |
1339 | ||
1340 | if (timer_create(CLOCK_REALTIME, &ev, &host_timer)) { | |
1341 | perror("timer_create"); | |
1342 | ||
1343 | /* disable dynticks */ | |
1344 | fprintf(stderr, "Dynamic Ticks disabled\n"); | |
1345 | ||
1346 | return -1; | |
1347 | } | |
1348 | ||
1349 | t->priv = (void *)(long)host_timer; | |
1350 | ||
1351 | return 0; | |
1352 | } | |
1353 | ||
1354 | static void dynticks_stop_timer(struct qemu_alarm_timer *t) | |
1355 | { | |
1356 | timer_t host_timer = (timer_t)(long)t->priv; | |
1357 | ||
1358 | timer_delete(host_timer); | |
1359 | } | |
1360 | ||
1361 | static void dynticks_rearm_timer(struct qemu_alarm_timer *t) | |
1362 | { | |
1363 | timer_t host_timer = (timer_t)(long)t->priv; | |
1364 | struct itimerspec timeout; | |
1365 | int64_t nearest_delta_us = INT64_MAX; | |
1366 | int64_t current_us; | |
1367 | ||
1368 | if (!active_timers[QEMU_TIMER_REALTIME] && | |
1369 | !active_timers[QEMU_TIMER_VIRTUAL]) | |
1370 | return; | |
1371 | ||
1372 | nearest_delta_us = qemu_next_deadline_dyntick(); | |
1373 | ||
1374 | /* check whether a timer is already running */ | |
1375 | if (timer_gettime(host_timer, &timeout)) { | |
1376 | perror("gettime"); | |
1377 | fprintf(stderr, "Internal timer error: aborting\n"); | |
1378 | exit(1); | |
1379 | } | |
1380 | current_us = timeout.it_value.tv_sec * 1000000 + timeout.it_value.tv_nsec/1000; | |
1381 | if (current_us && current_us <= nearest_delta_us) | |
1382 | return; | |
1383 | ||
1384 | timeout.it_interval.tv_sec = 0; | |
1385 | timeout.it_interval.tv_nsec = 0; /* 0 for one-shot timer */ | |
1386 | timeout.it_value.tv_sec = nearest_delta_us / 1000000; | |
1387 | timeout.it_value.tv_nsec = (nearest_delta_us % 1000000) * 1000; | |
1388 | if (timer_settime(host_timer, 0 /* RELATIVE */, &timeout, NULL)) { | |
1389 | perror("settime"); | |
1390 | fprintf(stderr, "Internal timer error: aborting\n"); | |
1391 | exit(1); | |
1392 | } | |
1393 | } | |
1394 | ||
1395 | #endif /* defined(__linux__) */ | |
1396 | ||
1397 | static int unix_start_timer(struct qemu_alarm_timer *t) | |
1398 | { | |
1399 | struct sigaction act; | |
1400 | struct itimerval itv; | |
1401 | int err; | |
1402 | ||
1403 | /* timer signal */ | |
1404 | sigfillset(&act.sa_mask); | |
1405 | act.sa_flags = 0; | |
1406 | act.sa_handler = host_alarm_handler; | |
1407 | ||
1408 | sigaction(SIGALRM, &act, NULL); | |
1409 | ||
1410 | itv.it_interval.tv_sec = 0; | |
1411 | /* for i386 kernel 2.6 to get 1 ms */ | |
1412 | itv.it_interval.tv_usec = 999; | |
1413 | itv.it_value.tv_sec = 0; | |
1414 | itv.it_value.tv_usec = 10 * 1000; | |
1415 | ||
1416 | err = setitimer(ITIMER_REAL, &itv, NULL); | |
1417 | if (err) | |
1418 | return -1; | |
1419 | ||
1420 | return 0; | |
1421 | } | |
1422 | ||
1423 | static void unix_stop_timer(struct qemu_alarm_timer *t) | |
1424 | { | |
1425 | struct itimerval itv; | |
1426 | ||
1427 | memset(&itv, 0, sizeof(itv)); | |
1428 | setitimer(ITIMER_REAL, &itv, NULL); | |
1429 | } | |
1430 | ||
1431 | #endif /* !defined(_WIN32) */ | |
1432 | ||
1433 | ||
1434 | #ifdef _WIN32 | |
1435 | ||
1436 | static int win32_start_timer(struct qemu_alarm_timer *t) | |
1437 | { | |
1438 | TIMECAPS tc; | |
1439 | struct qemu_alarm_win32 *data = t->priv; | |
1440 | UINT flags; | |
1441 | ||
1442 | memset(&tc, 0, sizeof(tc)); | |
1443 | timeGetDevCaps(&tc, sizeof(tc)); | |
1444 | ||
1445 | if (data->period < tc.wPeriodMin) | |
1446 | data->period = tc.wPeriodMin; | |
1447 | ||
1448 | timeBeginPeriod(data->period); | |
1449 | ||
1450 | flags = TIME_CALLBACK_FUNCTION; | |
1451 | if (alarm_has_dynticks(t)) | |
1452 | flags |= TIME_ONESHOT; | |
1453 | else | |
1454 | flags |= TIME_PERIODIC; | |
1455 | ||
1456 | data->timerId = timeSetEvent(1, // interval (ms) | |
1457 | data->period, // resolution | |
1458 | host_alarm_handler, // function | |
1459 | (DWORD)t, // parameter | |
1460 | flags); | |
1461 | ||
1462 | if (!data->timerId) { | |
1463 | perror("Failed to initialize win32 alarm timer"); | |
1464 | timeEndPeriod(data->period); | |
1465 | return -1; | |
1466 | } | |
1467 | ||
1468 | return 0; | |
1469 | } | |
1470 | ||
1471 | static void win32_stop_timer(struct qemu_alarm_timer *t) | |
1472 | { | |
1473 | struct qemu_alarm_win32 *data = t->priv; | |
1474 | ||
1475 | timeKillEvent(data->timerId); | |
1476 | timeEndPeriod(data->period); | |
1477 | } | |
1478 | ||
1479 | static void win32_rearm_timer(struct qemu_alarm_timer *t) | |
1480 | { | |
1481 | struct qemu_alarm_win32 *data = t->priv; | |
1482 | uint64_t nearest_delta_us; | |
1483 | ||
1484 | if (!active_timers[QEMU_TIMER_REALTIME] && | |
1485 | !active_timers[QEMU_TIMER_VIRTUAL]) | |
1486 | return; | |
1487 | ||
1488 | nearest_delta_us = qemu_next_deadline_dyntick(); | |
1489 | nearest_delta_us /= 1000; | |
1490 | ||
1491 | timeKillEvent(data->timerId); | |
1492 | ||
1493 | data->timerId = timeSetEvent(1, | |
1494 | data->period, | |
1495 | host_alarm_handler, | |
1496 | (DWORD)t, | |
1497 | TIME_ONESHOT | TIME_PERIODIC); | |
1498 | ||
1499 | if (!data->timerId) { | |
1500 | perror("Failed to re-arm win32 alarm timer"); | |
1501 | ||
1502 | timeEndPeriod(data->period); | |
1503 | exit(1); | |
1504 | } | |
1505 | } | |
1506 | ||
1507 | #endif /* _WIN32 */ | |
1508 | ||
1509 | static int init_timer_alarm(void) | |
1510 | { | |
1511 | struct qemu_alarm_timer *t = NULL; | |
1512 | int i, err = -1; | |
1513 | ||
1514 | for (i = 0; alarm_timers[i].name; i++) { | |
1515 | t = &alarm_timers[i]; | |
1516 | ||
1517 | err = t->start(t); | |
1518 | if (!err) | |
1519 | break; | |
1520 | } | |
1521 | ||
1522 | if (err) { | |
1523 | err = -ENOENT; | |
1524 | goto fail; | |
1525 | } | |
1526 | ||
1527 | alarm_timer = t; | |
1528 | ||
1529 | return 0; | |
1530 | ||
1531 | fail: | |
1532 | return err; | |
1533 | } | |
1534 | ||
1535 | static void quit_timers(void) | |
1536 | { | |
1537 | alarm_timer->stop(alarm_timer); | |
1538 | alarm_timer = NULL; | |
1539 | } | |
1540 | ||
1541 | /***********************************************************/ | |
1542 | /* host time/date access */ | |
1543 | void qemu_get_timedate(struct tm *tm, int offset) | |
1544 | { | |
1545 | time_t ti; | |
1546 | struct tm *ret; | |
1547 | ||
1548 | time(&ti); | |
1549 | ti += offset; | |
1550 | if (rtc_date_offset == -1) { | |
1551 | if (rtc_utc) | |
1552 | ret = gmtime(&ti); | |
1553 | else | |
1554 | ret = localtime(&ti); | |
1555 | } else { | |
1556 | ti -= rtc_date_offset; | |
1557 | ret = gmtime(&ti); | |
1558 | } | |
1559 | ||
1560 | memcpy(tm, ret, sizeof(struct tm)); | |
1561 | } | |
1562 | ||
1563 | int qemu_timedate_diff(struct tm *tm) | |
1564 | { | |
1565 | time_t seconds; | |
1566 | ||
1567 | if (rtc_date_offset == -1) | |
1568 | if (rtc_utc) | |
1569 | seconds = mktimegm(tm); | |
1570 | else | |
1571 | seconds = mktime(tm); | |
1572 | else | |
1573 | seconds = mktimegm(tm) + rtc_date_offset; | |
1574 | ||
1575 | return seconds - time(NULL); | |
1576 | } | |
1577 | ||
1578 | #ifdef _WIN32 | |
1579 | static void socket_cleanup(void) | |
1580 | { | |
1581 | WSACleanup(); | |
1582 | } | |
1583 | ||
1584 | static int socket_init(void) | |
1585 | { | |
1586 | WSADATA Data; | |
1587 | int ret, err; | |
1588 | ||
1589 | ret = WSAStartup(MAKEWORD(2,2), &Data); | |
1590 | if (ret != 0) { | |
1591 | err = WSAGetLastError(); | |
1592 | fprintf(stderr, "WSAStartup: %d\n", err); | |
1593 | return -1; | |
1594 | } | |
1595 | atexit(socket_cleanup); | |
1596 | return 0; | |
1597 | } | |
1598 | #endif | |
1599 | ||
1600 | /***********************************************************/ | |
1601 | /* Bluetooth support */ | |
1602 | static int nb_hcis; | |
1603 | static int cur_hci; | |
1604 | static struct HCIInfo *hci_table[MAX_NICS]; | |
1605 | ||
1606 | static struct bt_vlan_s { | |
1607 | struct bt_scatternet_s net; | |
1608 | int id; | |
1609 | struct bt_vlan_s *next; | |
1610 | } *first_bt_vlan; | |
1611 | ||
1612 | /* find or alloc a new bluetooth "VLAN" */ | |
1613 | static struct bt_scatternet_s *qemu_find_bt_vlan(int id) | |
1614 | { | |
1615 | struct bt_vlan_s **pvlan, *vlan; | |
1616 | for (vlan = first_bt_vlan; vlan != NULL; vlan = vlan->next) { | |
1617 | if (vlan->id == id) | |
1618 | return &vlan->net; | |
1619 | } | |
1620 | vlan = qemu_mallocz(sizeof(struct bt_vlan_s)); | |
1621 | vlan->id = id; | |
1622 | pvlan = &first_bt_vlan; | |
1623 | while (*pvlan != NULL) | |
1624 | pvlan = &(*pvlan)->next; | |
1625 | *pvlan = vlan; | |
1626 | return &vlan->net; | |
1627 | } | |
1628 | ||
1629 | static void null_hci_send(struct HCIInfo *hci, const uint8_t *data, int len) | |
1630 | { | |
1631 | } | |
1632 | ||
1633 | static int null_hci_addr_set(struct HCIInfo *hci, const uint8_t *bd_addr) | |
1634 | { | |
1635 | return -ENOTSUP; | |
1636 | } | |
1637 | ||
1638 | static struct HCIInfo null_hci = { | |
1639 | .cmd_send = null_hci_send, | |
1640 | .sco_send = null_hci_send, | |
1641 | .acl_send = null_hci_send, | |
1642 | .bdaddr_set = null_hci_addr_set, | |
1643 | }; | |
1644 | ||
1645 | struct HCIInfo *qemu_next_hci(void) | |
1646 | { | |
1647 | if (cur_hci == nb_hcis) | |
1648 | return &null_hci; | |
1649 | ||
1650 | return hci_table[cur_hci++]; | |
1651 | } | |
1652 | ||
1653 | static struct HCIInfo *hci_init(const char *str) | |
1654 | { | |
1655 | char *endp; | |
1656 | struct bt_scatternet_s *vlan = 0; | |
1657 | ||
1658 | if (!strcmp(str, "null")) | |
1659 | /* null */ | |
1660 | return &null_hci; | |
1661 | else if (!strncmp(str, "host", 4) && (str[4] == '\0' || str[4] == ':')) | |
1662 | /* host[:hciN] */ | |
1663 | return bt_host_hci(str[4] ? str + 5 : "hci0"); | |
1664 | else if (!strncmp(str, "hci", 3)) { | |
1665 | /* hci[,vlan=n] */ | |
1666 | if (str[3]) { | |
1667 | if (!strncmp(str + 3, ",vlan=", 6)) { | |
1668 | vlan = qemu_find_bt_vlan(strtol(str + 9, &endp, 0)); | |
1669 | if (*endp) | |
1670 | vlan = 0; | |
1671 | } | |
1672 | } else | |
1673 | vlan = qemu_find_bt_vlan(0); | |
1674 | if (vlan) | |
1675 | return bt_new_hci(vlan); | |
1676 | } | |
1677 | ||
1678 | fprintf(stderr, "qemu: Unknown bluetooth HCI `%s'.\n", str); | |
1679 | ||
1680 | return 0; | |
1681 | } | |
1682 | ||
1683 | static int bt_hci_parse(const char *str) | |
1684 | { | |
1685 | struct HCIInfo *hci; | |
1686 | bdaddr_t bdaddr; | |
1687 | ||
1688 | if (nb_hcis >= MAX_NICS) { | |
1689 | fprintf(stderr, "qemu: Too many bluetooth HCIs (max %i).\n", MAX_NICS); | |
1690 | return -1; | |
1691 | } | |
1692 | ||
1693 | hci = hci_init(str); | |
1694 | if (!hci) | |
1695 | return -1; | |
1696 | ||
1697 | bdaddr.b[0] = 0x52; | |
1698 | bdaddr.b[1] = 0x54; | |
1699 | bdaddr.b[2] = 0x00; | |
1700 | bdaddr.b[3] = 0x12; | |
1701 | bdaddr.b[4] = 0x34; | |
1702 | bdaddr.b[5] = 0x56 + nb_hcis; | |
1703 | hci->bdaddr_set(hci, bdaddr.b); | |
1704 | ||
1705 | hci_table[nb_hcis++] = hci; | |
1706 | ||
1707 | return 0; | |
1708 | } | |
1709 | ||
1710 | static void bt_vhci_add(int vlan_id) | |
1711 | { | |
1712 | struct bt_scatternet_s *vlan = qemu_find_bt_vlan(vlan_id); | |
1713 | ||
1714 | if (!vlan->slave) | |
1715 | fprintf(stderr, "qemu: warning: adding a VHCI to " | |
1716 | "an empty scatternet %i\n", vlan_id); | |
1717 | ||
1718 | bt_vhci_init(bt_new_hci(vlan)); | |
1719 | } | |
1720 | ||
1721 | static struct bt_device_s *bt_device_add(const char *opt) | |
1722 | { | |
1723 | struct bt_scatternet_s *vlan; | |
1724 | int vlan_id = 0; | |
1725 | char *endp = strstr(opt, ",vlan="); | |
1726 | int len = (endp ? endp - opt : strlen(opt)) + 1; | |
1727 | char devname[10]; | |
1728 | ||
1729 | pstrcpy(devname, MIN(sizeof(devname), len), opt); | |
1730 | ||
1731 | if (endp) { | |
1732 | vlan_id = strtol(endp + 6, &endp, 0); | |
1733 | if (*endp) { | |
1734 | fprintf(stderr, "qemu: unrecognised bluetooth vlan Id\n"); | |
1735 | return 0; | |
1736 | } | |
1737 | } | |
1738 | ||
1739 | vlan = qemu_find_bt_vlan(vlan_id); | |
1740 | ||
1741 | if (!vlan->slave) | |
1742 | fprintf(stderr, "qemu: warning: adding a slave device to " | |
1743 | "an empty scatternet %i\n", vlan_id); | |
1744 | ||
1745 | if (!strcmp(devname, "keyboard")) | |
1746 | return bt_keyboard_init(vlan); | |
1747 | ||
1748 | fprintf(stderr, "qemu: unsupported bluetooth device `%s'\n", devname); | |
1749 | return 0; | |
1750 | } | |
1751 | ||
1752 | static int bt_parse(const char *opt) | |
1753 | { | |
1754 | const char *endp, *p; | |
1755 | int vlan; | |
1756 | ||
1757 | if (strstart(opt, "hci", &endp)) { | |
1758 | if (!*endp || *endp == ',') { | |
1759 | if (*endp) | |
1760 | if (!strstart(endp, ",vlan=", 0)) | |
1761 | opt = endp + 1; | |
1762 | ||
1763 | return bt_hci_parse(opt); | |
1764 | } | |
1765 | } else if (strstart(opt, "vhci", &endp)) { | |
1766 | if (!*endp || *endp == ',') { | |
1767 | if (*endp) { | |
1768 | if (strstart(endp, ",vlan=", &p)) { | |
1769 | vlan = strtol(p, (char **) &endp, 0); | |
1770 | if (*endp) { | |
1771 | fprintf(stderr, "qemu: bad scatternet '%s'\n", p); | |
1772 | return 1; | |
1773 | } | |
1774 | } else { | |
1775 | fprintf(stderr, "qemu: bad parameter '%s'\n", endp + 1); | |
1776 | return 1; | |
1777 | } | |
1778 | } else | |
1779 | vlan = 0; | |
1780 | ||
1781 | bt_vhci_add(vlan); | |
1782 | return 0; | |
1783 | } | |
1784 | } else if (strstart(opt, "device:", &endp)) | |
1785 | return !bt_device_add(endp); | |
1786 | ||
1787 | fprintf(stderr, "qemu: bad bluetooth parameter '%s'\n", opt); | |
1788 | return 1; | |
1789 | } | |
1790 | ||
1791 | /***********************************************************/ | |
1792 | /* QEMU Block devices */ | |
1793 | ||
1794 | #define HD_ALIAS "index=%d,media=disk" | |
1795 | #define CDROM_ALIAS "index=2,media=cdrom" | |
1796 | #define FD_ALIAS "index=%d,if=floppy" | |
1797 | #define PFLASH_ALIAS "if=pflash" | |
1798 | #define MTD_ALIAS "if=mtd" | |
1799 | #define SD_ALIAS "index=0,if=sd" | |
1800 | ||
1801 | QemuOpts *drive_add(const char *file, const char *fmt, ...) | |
1802 | { | |
1803 | va_list ap; | |
1804 | char optstr[1024]; | |
1805 | QemuOpts *opts; | |
1806 | ||
1807 | va_start(ap, fmt); | |
1808 | vsnprintf(optstr, sizeof(optstr), fmt, ap); | |
1809 | va_end(ap); | |
1810 | ||
1811 | opts = qemu_opts_parse(&qemu_drive_opts, optstr, NULL); | |
1812 | if (!opts) { | |
1813 | fprintf(stderr, "%s: huh? duplicate? (%s)\n", | |
1814 | __FUNCTION__, optstr); | |
1815 | return NULL; | |
1816 | } | |
1817 | if (file) | |
1818 | qemu_opt_set(opts, "file", file); | |
1819 | return opts; | |
1820 | } | |
1821 | ||
1822 | DriveInfo *drive_get(BlockInterfaceType type, int bus, int unit) | |
1823 | { | |
1824 | DriveInfo *dinfo; | |
1825 | ||
1826 | /* seek interface, bus and unit */ | |
1827 | ||
1828 | TAILQ_FOREACH(dinfo, &drives, next) { | |
1829 | if (dinfo->type == type && | |
1830 | dinfo->bus == bus && | |
1831 | dinfo->unit == unit) | |
1832 | return dinfo; | |
1833 | } | |
1834 | ||
1835 | return NULL; | |
1836 | } | |
1837 | ||
1838 | DriveInfo *drive_get_by_id(const char *id) | |
1839 | { | |
1840 | DriveInfo *dinfo; | |
1841 | ||
1842 | TAILQ_FOREACH(dinfo, &drives, next) { | |
1843 | if (strcmp(id, dinfo->id)) | |
1844 | continue; | |
1845 | return dinfo; | |
1846 | } | |
1847 | return NULL; | |
1848 | } | |
1849 | ||
1850 | int drive_get_max_bus(BlockInterfaceType type) | |
1851 | { | |
1852 | int max_bus; | |
1853 | DriveInfo *dinfo; | |
1854 | ||
1855 | max_bus = -1; | |
1856 | TAILQ_FOREACH(dinfo, &drives, next) { | |
1857 | if(dinfo->type == type && | |
1858 | dinfo->bus > max_bus) | |
1859 | max_bus = dinfo->bus; | |
1860 | } | |
1861 | return max_bus; | |
1862 | } | |
1863 | ||
1864 | const char *drive_get_serial(BlockDriverState *bdrv) | |
1865 | { | |
1866 | DriveInfo *dinfo; | |
1867 | ||
1868 | TAILQ_FOREACH(dinfo, &drives, next) { | |
1869 | if (dinfo->bdrv == bdrv) | |
1870 | return dinfo->serial; | |
1871 | } | |
1872 | ||
1873 | return "\0"; | |
1874 | } | |
1875 | ||
1876 | BlockInterfaceErrorAction drive_get_onerror(BlockDriverState *bdrv) | |
1877 | { | |
1878 | DriveInfo *dinfo; | |
1879 | ||
1880 | TAILQ_FOREACH(dinfo, &drives, next) { | |
1881 | if (dinfo->bdrv == bdrv) | |
1882 | return dinfo->onerror; | |
1883 | } | |
1884 | ||
1885 | return BLOCK_ERR_STOP_ENOSPC; | |
1886 | } | |
1887 | ||
1888 | static void bdrv_format_print(void *opaque, const char *name) | |
1889 | { | |
1890 | fprintf(stderr, " %s", name); | |
1891 | } | |
1892 | ||
1893 | void drive_uninit(BlockDriverState *bdrv) | |
1894 | { | |
1895 | DriveInfo *dinfo; | |
1896 | ||
1897 | TAILQ_FOREACH(dinfo, &drives, next) { | |
1898 | if (dinfo->bdrv != bdrv) | |
1899 | continue; | |
1900 | qemu_opts_del(dinfo->opts); | |
1901 | TAILQ_REMOVE(&drives, dinfo, next); | |
1902 | qemu_free(dinfo); | |
1903 | break; | |
1904 | } | |
1905 | } | |
1906 | ||
1907 | DriveInfo *drive_init(QemuOpts *opts, void *opaque, | |
1908 | int *fatal_error) | |
1909 | { | |
1910 | const char *buf; | |
1911 | const char *file = NULL; | |
1912 | char devname[128]; | |
1913 | const char *serial; | |
1914 | const char *mediastr = ""; | |
1915 | BlockInterfaceType type; | |
1916 | enum { MEDIA_DISK, MEDIA_CDROM } media; | |
1917 | int bus_id, unit_id; | |
1918 | int cyls, heads, secs, translation; | |
1919 | BlockDriver *drv = NULL; | |
1920 | QEMUMachine *machine = opaque; | |
1921 | int max_devs; | |
1922 | int index; | |
1923 | int cache; | |
1924 | int bdrv_flags, onerror; | |
1925 | const char *devaddr; | |
1926 | DriveInfo *dinfo; | |
1927 | int snapshot = 0; | |
1928 | ||
1929 | *fatal_error = 1; | |
1930 | ||
1931 | translation = BIOS_ATA_TRANSLATION_AUTO; | |
1932 | cache = 1; | |
1933 | ||
1934 | if (machine->use_scsi) { | |
1935 | type = IF_SCSI; | |
1936 | max_devs = MAX_SCSI_DEVS; | |
1937 | pstrcpy(devname, sizeof(devname), "scsi"); | |
1938 | } else { | |
1939 | type = IF_IDE; | |
1940 | max_devs = MAX_IDE_DEVS; | |
1941 | pstrcpy(devname, sizeof(devname), "ide"); | |
1942 | } | |
1943 | media = MEDIA_DISK; | |
1944 | ||
1945 | /* extract parameters */ | |
1946 | bus_id = qemu_opt_get_number(opts, "bus", 0); | |
1947 | unit_id = qemu_opt_get_number(opts, "unit", -1); | |
1948 | index = qemu_opt_get_number(opts, "index", -1); | |
1949 | ||
1950 | cyls = qemu_opt_get_number(opts, "cyls", 0); | |
1951 | heads = qemu_opt_get_number(opts, "heads", 0); | |
1952 | secs = qemu_opt_get_number(opts, "secs", 0); | |
1953 | ||
1954 | snapshot = qemu_opt_get_bool(opts, "snapshot", 0); | |
1955 | ||
1956 | file = qemu_opt_get(opts, "file"); | |
1957 | serial = qemu_opt_get(opts, "serial"); | |
1958 | ||
1959 | if ((buf = qemu_opt_get(opts, "if")) != NULL) { | |
1960 | pstrcpy(devname, sizeof(devname), buf); | |
1961 | if (!strcmp(buf, "ide")) { | |
1962 | type = IF_IDE; | |
1963 | max_devs = MAX_IDE_DEVS; | |
1964 | } else if (!strcmp(buf, "scsi")) { | |
1965 | type = IF_SCSI; | |
1966 | max_devs = MAX_SCSI_DEVS; | |
1967 | } else if (!strcmp(buf, "floppy")) { | |
1968 | type = IF_FLOPPY; | |
1969 | max_devs = 0; | |
1970 | } else if (!strcmp(buf, "pflash")) { | |
1971 | type = IF_PFLASH; | |
1972 | max_devs = 0; | |
1973 | } else if (!strcmp(buf, "mtd")) { | |
1974 | type = IF_MTD; | |
1975 | max_devs = 0; | |
1976 | } else if (!strcmp(buf, "sd")) { | |
1977 | type = IF_SD; | |
1978 | max_devs = 0; | |
1979 | } else if (!strcmp(buf, "virtio")) { | |
1980 | type = IF_VIRTIO; | |
1981 | max_devs = 0; | |
1982 | } else if (!strcmp(buf, "xen")) { | |
1983 | type = IF_XEN; | |
1984 | max_devs = 0; | |
1985 | } else if (!strcmp(buf, "none")) { | |
1986 | type = IF_NONE; | |
1987 | max_devs = 0; | |
1988 | } else { | |
1989 | fprintf(stderr, "qemu: unsupported bus type '%s'\n", buf); | |
1990 | return NULL; | |
1991 | } | |
1992 | } | |
1993 | ||
1994 | if (cyls || heads || secs) { | |
1995 | if (cyls < 1 || cyls > 16383) { | |
1996 | fprintf(stderr, "qemu: '%s' invalid physical cyls number\n", buf); | |
1997 | return NULL; | |
1998 | } | |
1999 | if (heads < 1 || heads > 16) { | |
2000 | fprintf(stderr, "qemu: '%s' invalid physical heads number\n", buf); | |
2001 | return NULL; | |
2002 | } | |
2003 | if (secs < 1 || secs > 63) { | |
2004 | fprintf(stderr, "qemu: '%s' invalid physical secs number\n", buf); | |
2005 | return NULL; | |
2006 | } | |
2007 | } | |
2008 | ||
2009 | if ((buf = qemu_opt_get(opts, "trans")) != NULL) { | |
2010 | if (!cyls) { | |
2011 | fprintf(stderr, | |
2012 | "qemu: '%s' trans must be used with cyls,heads and secs\n", | |
2013 | buf); | |
2014 | return NULL; | |
2015 | } | |
2016 | if (!strcmp(buf, "none")) | |
2017 | translation = BIOS_ATA_TRANSLATION_NONE; | |
2018 | else if (!strcmp(buf, "lba")) | |
2019 | translation = BIOS_ATA_TRANSLATION_LBA; | |
2020 | else if (!strcmp(buf, "auto")) | |
2021 | translation = BIOS_ATA_TRANSLATION_AUTO; | |
2022 | else { | |
2023 | fprintf(stderr, "qemu: '%s' invalid translation type\n", buf); | |
2024 | return NULL; | |
2025 | } | |
2026 | } | |
2027 | ||
2028 | if ((buf = qemu_opt_get(opts, "media")) != NULL) { | |
2029 | if (!strcmp(buf, "disk")) { | |
2030 | media = MEDIA_DISK; | |
2031 | } else if (!strcmp(buf, "cdrom")) { | |
2032 | if (cyls || secs || heads) { | |
2033 | fprintf(stderr, | |
2034 | "qemu: '%s' invalid physical CHS format\n", buf); | |
2035 | return NULL; | |
2036 | } | |
2037 | media = MEDIA_CDROM; | |
2038 | } else { | |
2039 | fprintf(stderr, "qemu: '%s' invalid media\n", buf); | |
2040 | return NULL; | |
2041 | } | |
2042 | } | |
2043 | ||
2044 | if ((buf = qemu_opt_get(opts, "cache")) != NULL) { | |
2045 | if (!strcmp(buf, "off") || !strcmp(buf, "none")) | |
2046 | cache = 0; | |
2047 | else if (!strcmp(buf, "writethrough")) | |
2048 | cache = 1; | |
2049 | else if (!strcmp(buf, "writeback")) | |
2050 | cache = 2; | |
2051 | else { | |
2052 | fprintf(stderr, "qemu: invalid cache option\n"); | |
2053 | return NULL; | |
2054 | } | |
2055 | } | |
2056 | ||
2057 | if ((buf = qemu_opt_get(opts, "format")) != NULL) { | |
2058 | if (strcmp(buf, "?") == 0) { | |
2059 | fprintf(stderr, "qemu: Supported formats:"); | |
2060 | bdrv_iterate_format(bdrv_format_print, NULL); | |
2061 | fprintf(stderr, "\n"); | |
2062 | return NULL; | |
2063 | } | |
2064 | drv = bdrv_find_format(buf); | |
2065 | if (!drv) { | |
2066 | fprintf(stderr, "qemu: '%s' invalid format\n", buf); | |
2067 | return NULL; | |
2068 | } | |
2069 | } | |
2070 | ||
2071 | onerror = BLOCK_ERR_STOP_ENOSPC; | |
2072 | if ((buf = qemu_opt_get(opts, "werror")) != NULL) { | |
2073 | if (type != IF_IDE && type != IF_SCSI && type != IF_VIRTIO) { | |
2074 | fprintf(stderr, "werror is no supported by this format\n"); | |
2075 | return NULL; | |
2076 | } | |
2077 | if (!strcmp(buf, "ignore")) | |
2078 | onerror = BLOCK_ERR_IGNORE; | |
2079 | else if (!strcmp(buf, "enospc")) | |
2080 | onerror = BLOCK_ERR_STOP_ENOSPC; | |
2081 | else if (!strcmp(buf, "stop")) | |
2082 | onerror = BLOCK_ERR_STOP_ANY; | |
2083 | else if (!strcmp(buf, "report")) | |
2084 | onerror = BLOCK_ERR_REPORT; | |
2085 | else { | |
2086 | fprintf(stderr, "qemu: '%s' invalid write error action\n", buf); | |
2087 | return NULL; | |
2088 | } | |
2089 | } | |
2090 | ||
2091 | if ((devaddr = qemu_opt_get(opts, "addr")) != NULL) { | |
2092 | if (type != IF_VIRTIO) { | |
2093 | fprintf(stderr, "addr is not supported\n"); | |
2094 | return NULL; | |
2095 | } | |
2096 | } | |
2097 | ||
2098 | /* compute bus and unit according index */ | |
2099 | ||
2100 | if (index != -1) { | |
2101 | if (bus_id != 0 || unit_id != -1) { | |
2102 | fprintf(stderr, | |
2103 | "qemu: index cannot be used with bus and unit\n"); | |
2104 | return NULL; | |
2105 | } | |
2106 | if (max_devs == 0) | |
2107 | { | |
2108 | unit_id = index; | |
2109 | bus_id = 0; | |
2110 | } else { | |
2111 | unit_id = index % max_devs; | |
2112 | bus_id = index / max_devs; | |
2113 | } | |
2114 | } | |
2115 | ||
2116 | /* if user doesn't specify a unit_id, | |
2117 | * try to find the first free | |
2118 | */ | |
2119 | ||
2120 | if (unit_id == -1) { | |
2121 | unit_id = 0; | |
2122 | while (drive_get(type, bus_id, unit_id) != NULL) { | |
2123 | unit_id++; | |
2124 | if (max_devs && unit_id >= max_devs) { | |
2125 | unit_id -= max_devs; | |
2126 | bus_id++; | |
2127 | } | |
2128 | } | |
2129 | } | |
2130 | ||
2131 | /* check unit id */ | |
2132 | ||
2133 | if (max_devs && unit_id >= max_devs) { | |
2134 | fprintf(stderr, "qemu: unit %d too big (max is %d)\n", | |
2135 | unit_id, max_devs - 1); | |
2136 | return NULL; | |
2137 | } | |
2138 | ||
2139 | /* | |
2140 | * ignore multiple definitions | |
2141 | */ | |
2142 | ||
2143 | if (drive_get(type, bus_id, unit_id) != NULL) { | |
2144 | *fatal_error = 0; | |
2145 | return NULL; | |
2146 | } | |
2147 | ||
2148 | /* init */ | |
2149 | ||
2150 | dinfo = qemu_mallocz(sizeof(*dinfo)); | |
2151 | if ((buf = qemu_opts_id(opts)) != NULL) { | |
2152 | dinfo->id = qemu_strdup(buf); | |
2153 | } else { | |
2154 | /* no id supplied -> create one */ | |
2155 | dinfo->id = qemu_mallocz(32); | |
2156 | if (type == IF_IDE || type == IF_SCSI) | |
2157 | mediastr = (media == MEDIA_CDROM) ? "-cd" : "-hd"; | |
2158 | if (max_devs) | |
2159 | snprintf(dinfo->id, 32, "%s%i%s%i", | |
2160 | devname, bus_id, mediastr, unit_id); | |
2161 | else | |
2162 | snprintf(dinfo->id, 32, "%s%s%i", | |
2163 | devname, mediastr, unit_id); | |
2164 | } | |
2165 | dinfo->bdrv = bdrv_new(dinfo->id); | |
2166 | dinfo->devaddr = devaddr; | |
2167 | dinfo->type = type; | |
2168 | dinfo->bus = bus_id; | |
2169 | dinfo->unit = unit_id; | |
2170 | dinfo->onerror = onerror; | |
2171 | dinfo->opts = opts; | |
2172 | if (serial) | |
2173 | strncpy(dinfo->serial, serial, sizeof(serial)); | |
2174 | TAILQ_INSERT_TAIL(&drives, dinfo, next); | |
2175 | ||
2176 | switch(type) { | |
2177 | case IF_IDE: | |
2178 | case IF_SCSI: | |
2179 | case IF_XEN: | |
2180 | switch(media) { | |
2181 | case MEDIA_DISK: | |
2182 | if (cyls != 0) { | |
2183 | bdrv_set_geometry_hint(dinfo->bdrv, cyls, heads, secs); | |
2184 | bdrv_set_translation_hint(dinfo->bdrv, translation); | |
2185 | } | |
2186 | break; | |
2187 | case MEDIA_CDROM: | |
2188 | bdrv_set_type_hint(dinfo->bdrv, BDRV_TYPE_CDROM); | |
2189 | break; | |
2190 | } | |
2191 | break; | |
2192 | case IF_SD: | |
2193 | /* FIXME: This isn't really a floppy, but it's a reasonable | |
2194 | approximation. */ | |
2195 | case IF_FLOPPY: | |
2196 | bdrv_set_type_hint(dinfo->bdrv, BDRV_TYPE_FLOPPY); | |
2197 | break; | |
2198 | case IF_PFLASH: | |
2199 | case IF_MTD: | |
2200 | case IF_NONE: | |
2201 | break; | |
2202 | case IF_VIRTIO: | |
2203 | /* add virtio block device */ | |
2204 | opts = qemu_opts_create(&qemu_device_opts, NULL, 0); | |
2205 | qemu_opt_set(opts, "driver", "virtio-blk-pci"); | |
2206 | qemu_opt_set(opts, "drive", dinfo->id); | |
2207 | if (devaddr) | |
2208 | qemu_opt_set(opts, "addr", devaddr); | |
2209 | break; | |
2210 | case IF_COUNT: | |
2211 | abort(); | |
2212 | } | |
2213 | if (!file) { | |
2214 | *fatal_error = 0; | |
2215 | return NULL; | |
2216 | } | |
2217 | bdrv_flags = 0; | |
2218 | if (snapshot) { | |
2219 | bdrv_flags |= BDRV_O_SNAPSHOT; | |
2220 | cache = 2; /* always use write-back with snapshot */ | |
2221 | } | |
2222 | if (cache == 0) /* no caching */ | |
2223 | bdrv_flags |= BDRV_O_NOCACHE; | |
2224 | else if (cache == 2) /* write-back */ | |
2225 | bdrv_flags |= BDRV_O_CACHE_WB; | |
2226 | if (bdrv_open2(dinfo->bdrv, file, bdrv_flags, drv) < 0) { | |
2227 | fprintf(stderr, "qemu: could not open disk image %s\n", | |
2228 | file); | |
2229 | return NULL; | |
2230 | } | |
2231 | if (bdrv_key_required(dinfo->bdrv)) | |
2232 | autostart = 0; | |
2233 | *fatal_error = 0; | |
2234 | return dinfo; | |
2235 | } | |
2236 | ||
2237 | static int drive_init_func(QemuOpts *opts, void *opaque) | |
2238 | { | |
2239 | QEMUMachine *machine = opaque; | |
2240 | int fatal_error = 0; | |
2241 | ||
2242 | if (drive_init(opts, machine, &fatal_error) == NULL) { | |
2243 | if (fatal_error) | |
2244 | return 1; | |
2245 | } | |
2246 | return 0; | |
2247 | } | |
2248 | ||
2249 | static int drive_enable_snapshot(QemuOpts *opts, void *opaque) | |
2250 | { | |
2251 | if (NULL == qemu_opt_get(opts, "snapshot")) { | |
2252 | qemu_opt_set(opts, "snapshot", "on"); | |
2253 | } | |
2254 | return 0; | |
2255 | } | |
2256 | ||
2257 | void qemu_register_boot_set(QEMUBootSetHandler *func, void *opaque) | |
2258 | { | |
2259 | boot_set_handler = func; | |
2260 | boot_set_opaque = opaque; | |
2261 | } | |
2262 | ||
2263 | int qemu_boot_set(const char *boot_devices) | |
2264 | { | |
2265 | if (!boot_set_handler) { | |
2266 | return -EINVAL; | |
2267 | } | |
2268 | return boot_set_handler(boot_set_opaque, boot_devices); | |
2269 | } | |
2270 | ||
2271 | static int parse_bootdevices(char *devices) | |
2272 | { | |
2273 | /* We just do some generic consistency checks */ | |
2274 | const char *p; | |
2275 | int bitmap = 0; | |
2276 | ||
2277 | for (p = devices; *p != '\0'; p++) { | |
2278 | /* Allowed boot devices are: | |
2279 | * a-b: floppy disk drives | |
2280 | * c-f: IDE disk drives | |
2281 | * g-m: machine implementation dependant drives | |
2282 | * n-p: network devices | |
2283 | * It's up to each machine implementation to check if the given boot | |
2284 | * devices match the actual hardware implementation and firmware | |
2285 | * features. | |
2286 | */ | |
2287 | if (*p < 'a' || *p > 'p') { | |
2288 | fprintf(stderr, "Invalid boot device '%c'\n", *p); | |
2289 | exit(1); | |
2290 | } | |
2291 | if (bitmap & (1 << (*p - 'a'))) { | |
2292 | fprintf(stderr, "Boot device '%c' was given twice\n", *p); | |
2293 | exit(1); | |
2294 | } | |
2295 | bitmap |= 1 << (*p - 'a'); | |
2296 | } | |
2297 | return bitmap; | |
2298 | } | |
2299 | ||
2300 | static void restore_boot_devices(void *opaque) | |
2301 | { | |
2302 | char *standard_boot_devices = opaque; | |
2303 | ||
2304 | qemu_boot_set(standard_boot_devices); | |
2305 | ||
2306 | qemu_unregister_reset(restore_boot_devices, standard_boot_devices); | |
2307 | qemu_free(standard_boot_devices); | |
2308 | } | |
2309 | ||
2310 | static void numa_add(const char *optarg) | |
2311 | { | |
2312 | char option[128]; | |
2313 | char *endptr; | |
2314 | unsigned long long value, endvalue; | |
2315 | int nodenr; | |
2316 | ||
2317 | optarg = get_opt_name(option, 128, optarg, ',') + 1; | |
2318 | if (!strcmp(option, "node")) { | |
2319 | if (get_param_value(option, 128, "nodeid", optarg) == 0) { | |
2320 | nodenr = nb_numa_nodes; | |
2321 | } else { | |
2322 | nodenr = strtoull(option, NULL, 10); | |
2323 | } | |
2324 | ||
2325 | if (get_param_value(option, 128, "mem", optarg) == 0) { | |
2326 | node_mem[nodenr] = 0; | |
2327 | } else { | |
2328 | value = strtoull(option, &endptr, 0); | |
2329 | switch (*endptr) { | |
2330 | case 0: case 'M': case 'm': | |
2331 | value <<= 20; | |
2332 | break; | |
2333 | case 'G': case 'g': | |
2334 | value <<= 30; | |
2335 | break; | |
2336 | } | |
2337 | node_mem[nodenr] = value; | |
2338 | } | |
2339 | if (get_param_value(option, 128, "cpus", optarg) == 0) { | |
2340 | node_cpumask[nodenr] = 0; | |
2341 | } else { | |
2342 | value = strtoull(option, &endptr, 10); | |
2343 | if (value >= 64) { | |
2344 | value = 63; | |
2345 | fprintf(stderr, "only 64 CPUs in NUMA mode supported.\n"); | |
2346 | } else { | |
2347 | if (*endptr == '-') { | |
2348 | endvalue = strtoull(endptr+1, &endptr, 10); | |
2349 | if (endvalue >= 63) { | |
2350 | endvalue = 62; | |
2351 | fprintf(stderr, | |
2352 | "only 63 CPUs in NUMA mode supported.\n"); | |
2353 | } | |
2354 | value = (1 << (endvalue + 1)) - (1 << value); | |
2355 | } else { | |
2356 | value = 1 << value; | |
2357 | } | |
2358 | } | |
2359 | node_cpumask[nodenr] = value; | |
2360 | } | |
2361 | nb_numa_nodes++; | |
2362 | } | |
2363 | return; | |
2364 | } | |
2365 | ||
2366 | /***********************************************************/ | |
2367 | /* USB devices */ | |
2368 | ||
2369 | static USBPort *used_usb_ports; | |
2370 | static USBPort *free_usb_ports; | |
2371 | ||
2372 | /* ??? Maybe change this to register a hub to keep track of the topology. */ | |
2373 | void qemu_register_usb_port(USBPort *port, void *opaque, int index, | |
2374 | usb_attachfn attach) | |
2375 | { | |
2376 | port->opaque = opaque; | |
2377 | port->index = index; | |
2378 | port->attach = attach; | |
2379 | port->next = free_usb_ports; | |
2380 | free_usb_ports = port; | |
2381 | } | |
2382 | ||
2383 | int usb_device_add_dev(USBDevice *dev) | |
2384 | { | |
2385 | USBPort *port; | |
2386 | ||
2387 | /* Find a USB port to add the device to. */ | |
2388 | port = free_usb_ports; | |
2389 | if (!port->next) { | |
2390 | USBDevice *hub; | |
2391 | ||
2392 | /* Create a new hub and chain it on. */ | |
2393 | free_usb_ports = NULL; | |
2394 | port->next = used_usb_ports; | |
2395 | used_usb_ports = port; | |
2396 | ||
2397 | hub = usb_hub_init(VM_USB_HUB_SIZE); | |
2398 | usb_attach(port, hub); | |
2399 | port = free_usb_ports; | |
2400 | } | |
2401 | ||
2402 | free_usb_ports = port->next; | |
2403 | port->next = used_usb_ports; | |
2404 | used_usb_ports = port; | |
2405 | usb_attach(port, dev); | |
2406 | return 0; | |
2407 | } | |
2408 | ||
2409 | static void usb_msd_password_cb(void *opaque, int err) | |
2410 | { | |
2411 | USBDevice *dev = opaque; | |
2412 | ||
2413 | if (!err) | |
2414 | usb_device_add_dev(dev); | |
2415 | else | |
2416 | dev->handle_destroy(dev); | |
2417 | } | |
2418 | ||
2419 | static int usb_device_add(const char *devname, int is_hotplug) | |
2420 | { | |
2421 | const char *p; | |
2422 | USBDevice *dev; | |
2423 | ||
2424 | if (!free_usb_ports) | |
2425 | return -1; | |
2426 | ||
2427 | if (strstart(devname, "host:", &p)) { | |
2428 | dev = usb_host_device_open(p); | |
2429 | } else if (!strcmp(devname, "mouse")) { | |
2430 | dev = usb_mouse_init(); | |
2431 | } else if (!strcmp(devname, "tablet")) { | |
2432 | dev = usb_tablet_init(); | |
2433 | } else if (!strcmp(devname, "keyboard")) { | |
2434 | dev = usb_keyboard_init(); | |
2435 | } else if (strstart(devname, "disk:", &p)) { | |
2436 | BlockDriverState *bs; | |
2437 | ||
2438 | dev = usb_msd_init(p); | |
2439 | if (!dev) | |
2440 | return -1; | |
2441 | bs = usb_msd_get_bdrv(dev); | |
2442 | if (bdrv_key_required(bs)) { | |
2443 | autostart = 0; | |
2444 | if (is_hotplug) { | |
2445 | monitor_read_bdrv_key_start(cur_mon, bs, usb_msd_password_cb, | |
2446 | dev); | |
2447 | return 0; | |
2448 | } | |
2449 | } | |
2450 | } else if (!strcmp(devname, "wacom-tablet")) { | |
2451 | dev = usb_wacom_init(); | |
2452 | } else if (strstart(devname, "serial:", &p)) { | |
2453 | dev = usb_serial_init(p); | |
2454 | #ifdef CONFIG_BRLAPI | |
2455 | } else if (!strcmp(devname, "braille")) { | |
2456 | dev = usb_baum_init(); | |
2457 | #endif | |
2458 | } else if (strstart(devname, "net:", &p)) { | |
2459 | int nic = nb_nics; | |
2460 | ||
2461 | if (net_client_init(NULL, "nic", p) < 0) | |
2462 | return -1; | |
2463 | nd_table[nic].model = "usb"; | |
2464 | dev = usb_net_init(&nd_table[nic]); | |
2465 | } else if (!strcmp(devname, "bt") || strstart(devname, "bt:", &p)) { | |
2466 | dev = usb_bt_init(devname[2] ? hci_init(p) : | |
2467 | bt_new_hci(qemu_find_bt_vlan(0))); | |
2468 | } else { | |
2469 | return -1; | |
2470 | } | |
2471 | if (!dev) | |
2472 | return -1; | |
2473 | ||
2474 | return usb_device_add_dev(dev); | |
2475 | } | |
2476 | ||
2477 | int usb_device_del_addr(int bus_num, int addr) | |
2478 | { | |
2479 | USBPort *port; | |
2480 | USBPort **lastp; | |
2481 | USBDevice *dev; | |
2482 | ||
2483 | if (!used_usb_ports) | |
2484 | return -1; | |
2485 | ||
2486 | if (bus_num != 0) | |
2487 | return -1; | |
2488 | ||
2489 | lastp = &used_usb_ports; | |
2490 | port = used_usb_ports; | |
2491 | while (port && port->dev->addr != addr) { | |
2492 | lastp = &port->next; | |
2493 | port = port->next; | |
2494 | } | |
2495 | ||
2496 | if (!port) | |
2497 | return -1; | |
2498 | ||
2499 | dev = port->dev; | |
2500 | *lastp = port->next; | |
2501 | usb_attach(port, NULL); | |
2502 | dev->handle_destroy(dev); | |
2503 | port->next = free_usb_ports; | |
2504 | free_usb_ports = port; | |
2505 | return 0; | |
2506 | } | |
2507 | ||
2508 | static int usb_device_del(const char *devname) | |
2509 | { | |
2510 | int bus_num, addr; | |
2511 | const char *p; | |
2512 | ||
2513 | if (strstart(devname, "host:", &p)) | |
2514 | return usb_host_device_close(p); | |
2515 | ||
2516 | if (!used_usb_ports) | |
2517 | return -1; | |
2518 | ||
2519 | p = strchr(devname, '.'); | |
2520 | if (!p) | |
2521 | return -1; | |
2522 | bus_num = strtoul(devname, NULL, 0); | |
2523 | addr = strtoul(p + 1, NULL, 0); | |
2524 | ||
2525 | return usb_device_del_addr(bus_num, addr); | |
2526 | } | |
2527 | ||
2528 | static int usb_parse(const char *cmdline) | |
2529 | { | |
2530 | return usb_device_add(cmdline, 0); | |
2531 | } | |
2532 | ||
2533 | void do_usb_add(Monitor *mon, const char *devname) | |
2534 | { | |
2535 | usb_device_add(devname, 1); | |
2536 | } | |
2537 | ||
2538 | void do_usb_del(Monitor *mon, const char *devname) | |
2539 | { | |
2540 | usb_device_del(devname); | |
2541 | } | |
2542 | ||
2543 | void usb_info(Monitor *mon) | |
2544 | { | |
2545 | USBDevice *dev; | |
2546 | USBPort *port; | |
2547 | const char *speed_str; | |
2548 | ||
2549 | if (!usb_enabled) { | |
2550 | monitor_printf(mon, "USB support not enabled\n"); | |
2551 | return; | |
2552 | } | |
2553 | ||
2554 | for (port = used_usb_ports; port; port = port->next) { | |
2555 | dev = port->dev; | |
2556 | if (!dev) | |
2557 | continue; | |
2558 | switch(dev->speed) { | |
2559 | case USB_SPEED_LOW: | |
2560 | speed_str = "1.5"; | |
2561 | break; | |
2562 | case USB_SPEED_FULL: | |
2563 | speed_str = "12"; | |
2564 | break; | |
2565 | case USB_SPEED_HIGH: | |
2566 | speed_str = "480"; | |
2567 | break; | |
2568 | default: | |
2569 | speed_str = "?"; | |
2570 | break; | |
2571 | } | |
2572 | monitor_printf(mon, " Device %d.%d, Speed %s Mb/s, Product %s\n", | |
2573 | 0, dev->addr, speed_str, dev->devname); | |
2574 | } | |
2575 | } | |
2576 | ||
2577 | /***********************************************************/ | |
2578 | /* PCMCIA/Cardbus */ | |
2579 | ||
2580 | static struct pcmcia_socket_entry_s { | |
2581 | PCMCIASocket *socket; | |
2582 | struct pcmcia_socket_entry_s *next; | |
2583 | } *pcmcia_sockets = 0; | |
2584 | ||
2585 | void pcmcia_socket_register(PCMCIASocket *socket) | |
2586 | { | |
2587 | struct pcmcia_socket_entry_s *entry; | |
2588 | ||
2589 | entry = qemu_malloc(sizeof(struct pcmcia_socket_entry_s)); | |
2590 | entry->socket = socket; | |
2591 | entry->next = pcmcia_sockets; | |
2592 | pcmcia_sockets = entry; | |
2593 | } | |
2594 | ||
2595 | void pcmcia_socket_unregister(PCMCIASocket *socket) | |
2596 | { | |
2597 | struct pcmcia_socket_entry_s *entry, **ptr; | |
2598 | ||
2599 | ptr = &pcmcia_sockets; | |
2600 | for (entry = *ptr; entry; ptr = &entry->next, entry = *ptr) | |
2601 | if (entry->socket == socket) { | |
2602 | *ptr = entry->next; | |
2603 | qemu_free(entry); | |
2604 | } | |
2605 | } | |
2606 | ||
2607 | void pcmcia_info(Monitor *mon) | |
2608 | { | |
2609 | struct pcmcia_socket_entry_s *iter; | |
2610 | ||
2611 | if (!pcmcia_sockets) | |
2612 | monitor_printf(mon, "No PCMCIA sockets\n"); | |
2613 | ||
2614 | for (iter = pcmcia_sockets; iter; iter = iter->next) | |
2615 | monitor_printf(mon, "%s: %s\n", iter->socket->slot_string, | |
2616 | iter->socket->attached ? iter->socket->card_string : | |
2617 | "Empty"); | |
2618 | } | |
2619 | ||
2620 | /***********************************************************/ | |
2621 | /* register display */ | |
2622 | ||
2623 | struct DisplayAllocator default_allocator = { | |
2624 | defaultallocator_create_displaysurface, | |
2625 | defaultallocator_resize_displaysurface, | |
2626 | defaultallocator_free_displaysurface | |
2627 | }; | |
2628 | ||
2629 | void register_displaystate(DisplayState *ds) | |
2630 | { | |
2631 | DisplayState **s; | |
2632 | s = &display_state; | |
2633 | while (*s != NULL) | |
2634 | s = &(*s)->next; | |
2635 | ds->next = NULL; | |
2636 | *s = ds; | |
2637 | } | |
2638 | ||
2639 | DisplayState *get_displaystate(void) | |
2640 | { | |
2641 | return display_state; | |
2642 | } | |
2643 | ||
2644 | DisplayAllocator *register_displayallocator(DisplayState *ds, DisplayAllocator *da) | |
2645 | { | |
2646 | if(ds->allocator == &default_allocator) ds->allocator = da; | |
2647 | return ds->allocator; | |
2648 | } | |
2649 | ||
2650 | /* dumb display */ | |
2651 | ||
2652 | static void dumb_display_init(void) | |
2653 | { | |
2654 | DisplayState *ds = qemu_mallocz(sizeof(DisplayState)); | |
2655 | ds->allocator = &default_allocator; | |
2656 | ds->surface = qemu_create_displaysurface(ds, 640, 480); | |
2657 | register_displaystate(ds); | |
2658 | } | |
2659 | ||
2660 | /***********************************************************/ | |
2661 | /* I/O handling */ | |
2662 | ||
2663 | typedef struct IOHandlerRecord { | |
2664 | int fd; | |
2665 | IOCanRWHandler *fd_read_poll; | |
2666 | IOHandler *fd_read; | |
2667 | IOHandler *fd_write; | |
2668 | int deleted; | |
2669 | void *opaque; | |
2670 | /* temporary data */ | |
2671 | struct pollfd *ufd; | |
2672 | struct IOHandlerRecord *next; | |
2673 | } IOHandlerRecord; | |
2674 | ||
2675 | static IOHandlerRecord *first_io_handler; | |
2676 | ||
2677 | /* XXX: fd_read_poll should be suppressed, but an API change is | |
2678 | necessary in the character devices to suppress fd_can_read(). */ | |
2679 | int qemu_set_fd_handler2(int fd, | |
2680 | IOCanRWHandler *fd_read_poll, | |
2681 | IOHandler *fd_read, | |
2682 | IOHandler *fd_write, | |
2683 | void *opaque) | |
2684 | { | |
2685 | IOHandlerRecord **pioh, *ioh; | |
2686 | ||
2687 | if (!fd_read && !fd_write) { | |
2688 | pioh = &first_io_handler; | |
2689 | for(;;) { | |
2690 | ioh = *pioh; | |
2691 | if (ioh == NULL) | |
2692 | break; | |
2693 | if (ioh->fd == fd) { | |
2694 | ioh->deleted = 1; | |
2695 | break; | |
2696 | } | |
2697 | pioh = &ioh->next; | |
2698 | } | |
2699 | } else { | |
2700 | for(ioh = first_io_handler; ioh != NULL; ioh = ioh->next) { | |
2701 | if (ioh->fd == fd) | |
2702 | goto found; | |
2703 | } | |
2704 | ioh = qemu_mallocz(sizeof(IOHandlerRecord)); | |
2705 | ioh->next = first_io_handler; | |
2706 | first_io_handler = ioh; | |
2707 | found: | |
2708 | ioh->fd = fd; | |
2709 | ioh->fd_read_poll = fd_read_poll; | |
2710 | ioh->fd_read = fd_read; | |
2711 | ioh->fd_write = fd_write; | |
2712 | ioh->opaque = opaque; | |
2713 | ioh->deleted = 0; | |
2714 | } | |
2715 | return 0; | |
2716 | } | |
2717 | ||
2718 | int qemu_set_fd_handler(int fd, | |
2719 | IOHandler *fd_read, | |
2720 | IOHandler *fd_write, | |
2721 | void *opaque) | |
2722 | { | |
2723 | return qemu_set_fd_handler2(fd, NULL, fd_read, fd_write, opaque); | |
2724 | } | |
2725 | ||
2726 | #ifdef _WIN32 | |
2727 | /***********************************************************/ | |
2728 | /* Polling handling */ | |
2729 | ||
2730 | typedef struct PollingEntry { | |
2731 | PollingFunc *func; | |
2732 | void *opaque; | |
2733 | struct PollingEntry *next; | |
2734 | } PollingEntry; | |
2735 | ||
2736 | static PollingEntry *first_polling_entry; | |
2737 | ||
2738 | int qemu_add_polling_cb(PollingFunc *func, void *opaque) | |
2739 | { | |
2740 | PollingEntry **ppe, *pe; | |
2741 | pe = qemu_mallocz(sizeof(PollingEntry)); | |
2742 | pe->func = func; | |
2743 | pe->opaque = opaque; | |
2744 | for(ppe = &first_polling_entry; *ppe != NULL; ppe = &(*ppe)->next); | |
2745 | *ppe = pe; | |
2746 | return 0; | |
2747 | } | |
2748 | ||
2749 | void qemu_del_polling_cb(PollingFunc *func, void *opaque) | |
2750 | { | |
2751 | PollingEntry **ppe, *pe; | |
2752 | for(ppe = &first_polling_entry; *ppe != NULL; ppe = &(*ppe)->next) { | |
2753 | pe = *ppe; | |
2754 | if (pe->func == func && pe->opaque == opaque) { | |
2755 | *ppe = pe->next; | |
2756 | qemu_free(pe); | |
2757 | break; | |
2758 | } | |
2759 | } | |
2760 | } | |
2761 | ||
2762 | /***********************************************************/ | |
2763 | /* Wait objects support */ | |
2764 | typedef struct WaitObjects { | |
2765 | int num; | |
2766 | HANDLE events[MAXIMUM_WAIT_OBJECTS + 1]; | |
2767 | WaitObjectFunc *func[MAXIMUM_WAIT_OBJECTS + 1]; | |
2768 | void *opaque[MAXIMUM_WAIT_OBJECTS + 1]; | |
2769 | } WaitObjects; | |
2770 | ||
2771 | static WaitObjects wait_objects = {0}; | |
2772 | ||
2773 | int qemu_add_wait_object(HANDLE handle, WaitObjectFunc *func, void *opaque) | |
2774 | { | |
2775 | WaitObjects *w = &wait_objects; | |
2776 | ||
2777 | if (w->num >= MAXIMUM_WAIT_OBJECTS) | |
2778 | return -1; | |
2779 | w->events[w->num] = handle; | |
2780 | w->func[w->num] = func; | |
2781 | w->opaque[w->num] = opaque; | |
2782 | w->num++; | |
2783 | return 0; | |
2784 | } | |
2785 | ||
2786 | void qemu_del_wait_object(HANDLE handle, WaitObjectFunc *func, void *opaque) | |
2787 | { | |
2788 | int i, found; | |
2789 | WaitObjects *w = &wait_objects; | |
2790 | ||
2791 | found = 0; | |
2792 | for (i = 0; i < w->num; i++) { | |
2793 | if (w->events[i] == handle) | |
2794 | found = 1; | |
2795 | if (found) { | |
2796 | w->events[i] = w->events[i + 1]; | |
2797 | w->func[i] = w->func[i + 1]; | |
2798 | w->opaque[i] = w->opaque[i + 1]; | |
2799 | } | |
2800 | } | |
2801 | if (found) | |
2802 | w->num--; | |
2803 | } | |
2804 | #endif | |
2805 | ||
2806 | /***********************************************************/ | |
2807 | /* ram save/restore */ | |
2808 | ||
2809 | static int ram_get_page(QEMUFile *f, uint8_t *buf, int len) | |
2810 | { | |
2811 | int v; | |
2812 | ||
2813 | v = qemu_get_byte(f); | |
2814 | switch(v) { | |
2815 | case 0: | |
2816 | if (qemu_get_buffer(f, buf, len) != len) | |
2817 | return -EIO; | |
2818 | break; | |
2819 | case 1: | |
2820 | v = qemu_get_byte(f); | |
2821 | memset(buf, v, len); | |
2822 | break; | |
2823 | default: | |
2824 | return -EINVAL; | |
2825 | } | |
2826 | ||
2827 | if (qemu_file_has_error(f)) | |
2828 | return -EIO; | |
2829 | ||
2830 | return 0; | |
2831 | } | |
2832 | ||
2833 | static int ram_load_v1(QEMUFile *f, void *opaque) | |
2834 | { | |
2835 | int ret; | |
2836 | ram_addr_t i; | |
2837 | ||
2838 | if (qemu_get_be32(f) != last_ram_offset) | |
2839 | return -EINVAL; | |
2840 | for(i = 0; i < last_ram_offset; i+= TARGET_PAGE_SIZE) { | |
2841 | ret = ram_get_page(f, qemu_get_ram_ptr(i), TARGET_PAGE_SIZE); | |
2842 | if (ret) | |
2843 | return ret; | |
2844 | } | |
2845 | return 0; | |
2846 | } | |
2847 | ||
2848 | #define BDRV_HASH_BLOCK_SIZE 1024 | |
2849 | #define IOBUF_SIZE 4096 | |
2850 | #define RAM_CBLOCK_MAGIC 0xfabe | |
2851 | ||
2852 | typedef struct RamDecompressState { | |
2853 | z_stream zstream; | |
2854 | QEMUFile *f; | |
2855 | uint8_t buf[IOBUF_SIZE]; | |
2856 | } RamDecompressState; | |
2857 | ||
2858 | static int ram_decompress_open(RamDecompressState *s, QEMUFile *f) | |
2859 | { | |
2860 | int ret; | |
2861 | memset(s, 0, sizeof(*s)); | |
2862 | s->f = f; | |
2863 | ret = inflateInit(&s->zstream); | |
2864 | if (ret != Z_OK) | |
2865 | return -1; | |
2866 | return 0; | |
2867 | } | |
2868 | ||
2869 | static int ram_decompress_buf(RamDecompressState *s, uint8_t *buf, int len) | |
2870 | { | |
2871 | int ret, clen; | |
2872 | ||
2873 | s->zstream.avail_out = len; | |
2874 | s->zstream.next_out = buf; | |
2875 | while (s->zstream.avail_out > 0) { | |
2876 | if (s->zstream.avail_in == 0) { | |
2877 | if (qemu_get_be16(s->f) != RAM_CBLOCK_MAGIC) | |
2878 | return -1; | |
2879 | clen = qemu_get_be16(s->f); | |
2880 | if (clen > IOBUF_SIZE) | |
2881 | return -1; | |
2882 | qemu_get_buffer(s->f, s->buf, clen); | |
2883 | s->zstream.avail_in = clen; | |
2884 | s->zstream.next_in = s->buf; | |
2885 | } | |
2886 | ret = inflate(&s->zstream, Z_PARTIAL_FLUSH); | |
2887 | if (ret != Z_OK && ret != Z_STREAM_END) { | |
2888 | return -1; | |
2889 | } | |
2890 | } | |
2891 | return 0; | |
2892 | } | |
2893 | ||
2894 | static void ram_decompress_close(RamDecompressState *s) | |
2895 | { | |
2896 | inflateEnd(&s->zstream); | |
2897 | } | |
2898 | ||
2899 | #define RAM_SAVE_FLAG_FULL 0x01 | |
2900 | #define RAM_SAVE_FLAG_COMPRESS 0x02 | |
2901 | #define RAM_SAVE_FLAG_MEM_SIZE 0x04 | |
2902 | #define RAM_SAVE_FLAG_PAGE 0x08 | |
2903 | #define RAM_SAVE_FLAG_EOS 0x10 | |
2904 | ||
2905 | static int is_dup_page(uint8_t *page, uint8_t ch) | |
2906 | { | |
2907 | uint32_t val = ch << 24 | ch << 16 | ch << 8 | ch; | |
2908 | uint32_t *array = (uint32_t *)page; | |
2909 | int i; | |
2910 | ||
2911 | for (i = 0; i < (TARGET_PAGE_SIZE / 4); i++) { | |
2912 | if (array[i] != val) | |
2913 | return 0; | |
2914 | } | |
2915 | ||
2916 | return 1; | |
2917 | } | |
2918 | ||
2919 | static int ram_save_block(QEMUFile *f) | |
2920 | { | |
2921 | static ram_addr_t current_addr = 0; | |
2922 | ram_addr_t saved_addr = current_addr; | |
2923 | ram_addr_t addr = 0; | |
2924 | int found = 0; | |
2925 | ||
2926 | while (addr < last_ram_offset) { | |
2927 | if (cpu_physical_memory_get_dirty(current_addr, MIGRATION_DIRTY_FLAG)) { | |
2928 | uint8_t *p; | |
2929 | ||
2930 | cpu_physical_memory_reset_dirty(current_addr, | |
2931 | current_addr + TARGET_PAGE_SIZE, | |
2932 | MIGRATION_DIRTY_FLAG); | |
2933 | ||
2934 | p = qemu_get_ram_ptr(current_addr); | |
2935 | ||
2936 | if (is_dup_page(p, *p)) { | |
2937 | qemu_put_be64(f, current_addr | RAM_SAVE_FLAG_COMPRESS); | |
2938 | qemu_put_byte(f, *p); | |
2939 | } else { | |
2940 | qemu_put_be64(f, current_addr | RAM_SAVE_FLAG_PAGE); | |
2941 | qemu_put_buffer(f, p, TARGET_PAGE_SIZE); | |
2942 | } | |
2943 | ||
2944 | found = 1; | |
2945 | break; | |
2946 | } | |
2947 | addr += TARGET_PAGE_SIZE; | |
2948 | current_addr = (saved_addr + addr) % last_ram_offset; | |
2949 | } | |
2950 | ||
2951 | return found; | |
2952 | } | |
2953 | ||
2954 | static uint64_t bytes_transferred = 0; | |
2955 | ||
2956 | static ram_addr_t ram_save_remaining(void) | |
2957 | { | |
2958 | ram_addr_t addr; | |
2959 | ram_addr_t count = 0; | |
2960 | ||
2961 | for (addr = 0; addr < last_ram_offset; addr += TARGET_PAGE_SIZE) { | |
2962 | if (cpu_physical_memory_get_dirty(addr, MIGRATION_DIRTY_FLAG)) | |
2963 | count++; | |
2964 | } | |
2965 | ||
2966 | return count; | |
2967 | } | |
2968 | ||
2969 | uint64_t ram_bytes_remaining(void) | |
2970 | { | |
2971 | return ram_save_remaining() * TARGET_PAGE_SIZE; | |
2972 | } | |
2973 | ||
2974 | uint64_t ram_bytes_transferred(void) | |
2975 | { | |
2976 | return bytes_transferred; | |
2977 | } | |
2978 | ||
2979 | uint64_t ram_bytes_total(void) | |
2980 | { | |
2981 | return last_ram_offset; | |
2982 | } | |
2983 | ||
2984 | static int ram_save_live(QEMUFile *f, int stage, void *opaque) | |
2985 | { | |
2986 | ram_addr_t addr; | |
2987 | uint64_t bytes_transferred_last; | |
2988 | double bwidth = 0; | |
2989 | uint64_t expected_time = 0; | |
2990 | ||
2991 | if (cpu_physical_sync_dirty_bitmap(0, TARGET_PHYS_ADDR_MAX) != 0) { | |
2992 | qemu_file_set_error(f); | |
2993 | return 0; | |
2994 | } | |
2995 | ||
2996 | if (stage == 1) { | |
2997 | /* Make sure all dirty bits are set */ | |
2998 | for (addr = 0; addr < last_ram_offset; addr += TARGET_PAGE_SIZE) { | |
2999 | if (!cpu_physical_memory_get_dirty(addr, MIGRATION_DIRTY_FLAG)) | |
3000 | cpu_physical_memory_set_dirty(addr); | |
3001 | } | |
3002 | ||
3003 | /* Enable dirty memory tracking */ | |
3004 | cpu_physical_memory_set_dirty_tracking(1); | |
3005 | ||
3006 | qemu_put_be64(f, last_ram_offset | RAM_SAVE_FLAG_MEM_SIZE); | |
3007 | } | |
3008 | ||
3009 | bytes_transferred_last = bytes_transferred; | |
3010 | bwidth = get_clock(); | |
3011 | ||
3012 | while (!qemu_file_rate_limit(f)) { | |
3013 | int ret; | |
3014 | ||
3015 | ret = ram_save_block(f); | |
3016 | bytes_transferred += ret * TARGET_PAGE_SIZE; | |
3017 | if (ret == 0) /* no more blocks */ | |
3018 | break; | |
3019 | } | |
3020 | ||
3021 | bwidth = get_clock() - bwidth; | |
3022 | bwidth = (bytes_transferred - bytes_transferred_last) / bwidth; | |
3023 | ||
3024 | /* if we haven't transferred anything this round, force expected_time to a | |
3025 | * a very high value, but without crashing */ | |
3026 | if (bwidth == 0) | |
3027 | bwidth = 0.000001; | |
3028 | ||
3029 | /* try transferring iterative blocks of memory */ | |
3030 | ||
3031 | if (stage == 3) { | |
3032 | ||
3033 | /* flush all remaining blocks regardless of rate limiting */ | |
3034 | while (ram_save_block(f) != 0) { | |
3035 | bytes_transferred += TARGET_PAGE_SIZE; | |
3036 | } | |
3037 | cpu_physical_memory_set_dirty_tracking(0); | |
3038 | } | |
3039 | ||
3040 | qemu_put_be64(f, RAM_SAVE_FLAG_EOS); | |
3041 | ||
3042 | expected_time = ram_save_remaining() * TARGET_PAGE_SIZE / bwidth; | |
3043 | ||
3044 | return (stage == 2) && (expected_time <= migrate_max_downtime()); | |
3045 | } | |
3046 | ||
3047 | static int ram_load_dead(QEMUFile *f, void *opaque) | |
3048 | { | |
3049 | RamDecompressState s1, *s = &s1; | |
3050 | uint8_t buf[10]; | |
3051 | ram_addr_t i; | |
3052 | ||
3053 | if (ram_decompress_open(s, f) < 0) | |
3054 | return -EINVAL; | |
3055 | for(i = 0; i < last_ram_offset; i+= BDRV_HASH_BLOCK_SIZE) { | |
3056 | if (ram_decompress_buf(s, buf, 1) < 0) { | |
3057 | fprintf(stderr, "Error while reading ram block header\n"); | |
3058 | goto error; | |
3059 | } | |
3060 | if (buf[0] == 0) { | |
3061 | if (ram_decompress_buf(s, qemu_get_ram_ptr(i), | |
3062 | BDRV_HASH_BLOCK_SIZE) < 0) { | |
3063 | fprintf(stderr, "Error while reading ram block address=0x%08" PRIx64, (uint64_t)i); | |
3064 | goto error; | |
3065 | } | |
3066 | } else { | |
3067 | error: | |
3068 | printf("Error block header\n"); | |
3069 | return -EINVAL; | |
3070 | } | |
3071 | } | |
3072 | ram_decompress_close(s); | |
3073 | ||
3074 | return 0; | |
3075 | } | |
3076 | ||
3077 | static int ram_load(QEMUFile *f, void *opaque, int version_id) | |
3078 | { | |
3079 | ram_addr_t addr; | |
3080 | int flags; | |
3081 | ||
3082 | if (version_id == 1) | |
3083 | return ram_load_v1(f, opaque); | |
3084 | ||
3085 | if (version_id == 2) { | |
3086 | if (qemu_get_be32(f) != last_ram_offset) | |
3087 | return -EINVAL; | |
3088 | return ram_load_dead(f, opaque); | |
3089 | } | |
3090 | ||
3091 | if (version_id != 3) | |
3092 | return -EINVAL; | |
3093 | ||
3094 | do { | |
3095 | addr = qemu_get_be64(f); | |
3096 | ||
3097 | flags = addr & ~TARGET_PAGE_MASK; | |
3098 | addr &= TARGET_PAGE_MASK; | |
3099 | ||
3100 | if (flags & RAM_SAVE_FLAG_MEM_SIZE) { | |
3101 | if (addr != last_ram_offset) | |
3102 | return -EINVAL; | |
3103 | } | |
3104 | ||
3105 | if (flags & RAM_SAVE_FLAG_FULL) { | |
3106 | if (ram_load_dead(f, opaque) < 0) | |
3107 | return -EINVAL; | |
3108 | } | |
3109 | ||
3110 | if (flags & RAM_SAVE_FLAG_COMPRESS) { | |
3111 | uint8_t ch = qemu_get_byte(f); | |
3112 | memset(qemu_get_ram_ptr(addr), ch, TARGET_PAGE_SIZE); | |
3113 | #ifndef _WIN32 | |
3114 | if (ch == 0 && | |
3115 | (!kvm_enabled() || kvm_has_sync_mmu())) { | |
3116 | madvise(qemu_get_ram_ptr(addr), TARGET_PAGE_SIZE, MADV_DONTNEED); | |
3117 | } | |
3118 | #endif | |
3119 | } else if (flags & RAM_SAVE_FLAG_PAGE) | |
3120 | qemu_get_buffer(f, qemu_get_ram_ptr(addr), TARGET_PAGE_SIZE); | |
3121 | } while (!(flags & RAM_SAVE_FLAG_EOS)); | |
3122 | ||
3123 | return 0; | |
3124 | } | |
3125 | ||
3126 | void qemu_service_io(void) | |
3127 | { | |
3128 | qemu_notify_event(); | |
3129 | } | |
3130 | ||
3131 | /***********************************************************/ | |
3132 | /* bottom halves (can be seen as timers which expire ASAP) */ | |
3133 | ||
3134 | struct QEMUBH { | |
3135 | QEMUBHFunc *cb; | |
3136 | void *opaque; | |
3137 | int scheduled; | |
3138 | int idle; | |
3139 | int deleted; | |
3140 | QEMUBH *next; | |
3141 | }; | |
3142 | ||
3143 | static QEMUBH *first_bh = NULL; | |
3144 | ||
3145 | QEMUBH *qemu_bh_new(QEMUBHFunc *cb, void *opaque) | |
3146 | { | |
3147 | QEMUBH *bh; | |
3148 | bh = qemu_mallocz(sizeof(QEMUBH)); | |
3149 | bh->cb = cb; | |
3150 | bh->opaque = opaque; | |
3151 | bh->next = first_bh; | |
3152 | first_bh = bh; | |
3153 | return bh; | |
3154 | } | |
3155 | ||
3156 | int qemu_bh_poll(void) | |
3157 | { | |
3158 | QEMUBH *bh, **bhp; | |
3159 | int ret; | |
3160 | ||
3161 | ret = 0; | |
3162 | for (bh = first_bh; bh; bh = bh->next) { | |
3163 | if (!bh->deleted && bh->scheduled) { | |
3164 | bh->scheduled = 0; | |
3165 | if (!bh->idle) | |
3166 | ret = 1; | |
3167 | bh->idle = 0; | |
3168 | bh->cb(bh->opaque); | |
3169 | } | |
3170 | } | |
3171 | ||
3172 | /* remove deleted bhs */ | |
3173 | bhp = &first_bh; | |
3174 | while (*bhp) { | |
3175 | bh = *bhp; | |
3176 | if (bh->deleted) { | |
3177 | *bhp = bh->next; | |
3178 | qemu_free(bh); | |
3179 | } else | |
3180 | bhp = &bh->next; | |
3181 | } | |
3182 | ||
3183 | return ret; | |
3184 | } | |
3185 | ||
3186 | void qemu_bh_schedule_idle(QEMUBH *bh) | |
3187 | { | |
3188 | if (bh->scheduled) | |
3189 | return; | |
3190 | bh->scheduled = 1; | |
3191 | bh->idle = 1; | |
3192 | } | |
3193 | ||
3194 | void qemu_bh_schedule(QEMUBH *bh) | |
3195 | { | |
3196 | if (bh->scheduled) | |
3197 | return; | |
3198 | bh->scheduled = 1; | |
3199 | bh->idle = 0; | |
3200 | /* stop the currently executing CPU to execute the BH ASAP */ | |
3201 | qemu_notify_event(); | |
3202 | } | |
3203 | ||
3204 | void qemu_bh_cancel(QEMUBH *bh) | |
3205 | { | |
3206 | bh->scheduled = 0; | |
3207 | } | |
3208 | ||
3209 | void qemu_bh_delete(QEMUBH *bh) | |
3210 | { | |
3211 | bh->scheduled = 0; | |
3212 | bh->deleted = 1; | |
3213 | } | |
3214 | ||
3215 | static void qemu_bh_update_timeout(int *timeout) | |
3216 | { | |
3217 | QEMUBH *bh; | |
3218 | ||
3219 | for (bh = first_bh; bh; bh = bh->next) { | |
3220 | if (!bh->deleted && bh->scheduled) { | |
3221 | if (bh->idle) { | |
3222 | /* idle bottom halves will be polled at least | |
3223 | * every 10ms */ | |
3224 | *timeout = MIN(10, *timeout); | |
3225 | } else { | |
3226 | /* non-idle bottom halves will be executed | |
3227 | * immediately */ | |
3228 | *timeout = 0; | |
3229 | break; | |
3230 | } | |
3231 | } | |
3232 | } | |
3233 | } | |
3234 | ||
3235 | /***********************************************************/ | |
3236 | /* machine registration */ | |
3237 | ||
3238 | static QEMUMachine *first_machine = NULL; | |
3239 | QEMUMachine *current_machine = NULL; | |
3240 | ||
3241 | int qemu_register_machine(QEMUMachine *m) | |
3242 | { | |
3243 | QEMUMachine **pm; | |
3244 | pm = &first_machine; | |
3245 | while (*pm != NULL) | |
3246 | pm = &(*pm)->next; | |
3247 | m->next = NULL; | |
3248 | *pm = m; | |
3249 | return 0; | |
3250 | } | |
3251 | ||
3252 | static QEMUMachine *find_machine(const char *name) | |
3253 | { | |
3254 | QEMUMachine *m; | |
3255 | ||
3256 | for(m = first_machine; m != NULL; m = m->next) { | |
3257 | if (!strcmp(m->name, name)) | |
3258 | return m; | |
3259 | if (m->alias && !strcmp(m->alias, name)) | |
3260 | return m; | |
3261 | } | |
3262 | return NULL; | |
3263 | } | |
3264 | ||
3265 | static QEMUMachine *find_default_machine(void) | |
3266 | { | |
3267 | QEMUMachine *m; | |
3268 | ||
3269 | for(m = first_machine; m != NULL; m = m->next) { | |
3270 | if (m->is_default) { | |
3271 | return m; | |
3272 | } | |
3273 | } | |
3274 | return NULL; | |
3275 | } | |
3276 | ||
3277 | /***********************************************************/ | |
3278 | /* main execution loop */ | |
3279 | ||
3280 | static void gui_update(void *opaque) | |
3281 | { | |
3282 | uint64_t interval = GUI_REFRESH_INTERVAL; | |
3283 | DisplayState *ds = opaque; | |
3284 | DisplayChangeListener *dcl = ds->listeners; | |
3285 | ||
3286 | dpy_refresh(ds); | |
3287 | ||
3288 | while (dcl != NULL) { | |
3289 | if (dcl->gui_timer_interval && | |
3290 | dcl->gui_timer_interval < interval) | |
3291 | interval = dcl->gui_timer_interval; | |
3292 | dcl = dcl->next; | |
3293 | } | |
3294 | qemu_mod_timer(ds->gui_timer, interval + qemu_get_clock(rt_clock)); | |
3295 | } | |
3296 | ||
3297 | static void nographic_update(void *opaque) | |
3298 | { | |
3299 | uint64_t interval = GUI_REFRESH_INTERVAL; | |
3300 | ||
3301 | qemu_mod_timer(nographic_timer, interval + qemu_get_clock(rt_clock)); | |
3302 | } | |
3303 | ||
3304 | struct vm_change_state_entry { | |
3305 | VMChangeStateHandler *cb; | |
3306 | void *opaque; | |
3307 | LIST_ENTRY (vm_change_state_entry) entries; | |
3308 | }; | |
3309 | ||
3310 | static LIST_HEAD(vm_change_state_head, vm_change_state_entry) vm_change_state_head; | |
3311 | ||
3312 | VMChangeStateEntry *qemu_add_vm_change_state_handler(VMChangeStateHandler *cb, | |
3313 | void *opaque) | |
3314 | { | |
3315 | VMChangeStateEntry *e; | |
3316 | ||
3317 | e = qemu_mallocz(sizeof (*e)); | |
3318 | ||
3319 | e->cb = cb; | |
3320 | e->opaque = opaque; | |
3321 | LIST_INSERT_HEAD(&vm_change_state_head, e, entries); | |
3322 | return e; | |
3323 | } | |
3324 | ||
3325 | void qemu_del_vm_change_state_handler(VMChangeStateEntry *e) | |
3326 | { | |
3327 | LIST_REMOVE (e, entries); | |
3328 | qemu_free (e); | |
3329 | } | |
3330 | ||
3331 | static void vm_state_notify(int running, int reason) | |
3332 | { | |
3333 | VMChangeStateEntry *e; | |
3334 | ||
3335 | for (e = vm_change_state_head.lh_first; e; e = e->entries.le_next) { | |
3336 | e->cb(e->opaque, running, reason); | |
3337 | } | |
3338 | } | |
3339 | ||
3340 | static void resume_all_vcpus(void); | |
3341 | static void pause_all_vcpus(void); | |
3342 | ||
3343 | void vm_start(void) | |
3344 | { | |
3345 | if (!vm_running) { | |
3346 | cpu_enable_ticks(); | |
3347 | vm_running = 1; | |
3348 | vm_state_notify(1, 0); | |
3349 | qemu_rearm_alarm_timer(alarm_timer); | |
3350 | resume_all_vcpus(); | |
3351 | } | |
3352 | } | |
3353 | ||
3354 | /* reset/shutdown handler */ | |
3355 | ||
3356 | typedef struct QEMUResetEntry { | |
3357 | TAILQ_ENTRY(QEMUResetEntry) entry; | |
3358 | QEMUResetHandler *func; | |
3359 | void *opaque; | |
3360 | } QEMUResetEntry; | |
3361 | ||
3362 | static TAILQ_HEAD(reset_handlers, QEMUResetEntry) reset_handlers = | |
3363 | TAILQ_HEAD_INITIALIZER(reset_handlers); | |
3364 | static int reset_requested; | |
3365 | static int shutdown_requested; | |
3366 | static int powerdown_requested; | |
3367 | static int debug_requested; | |
3368 | static int vmstop_requested; | |
3369 | ||
3370 | int qemu_shutdown_requested(void) | |
3371 | { | |
3372 | int r = shutdown_requested; | |
3373 | shutdown_requested = 0; | |
3374 | return r; | |
3375 | } | |
3376 | ||
3377 | int qemu_reset_requested(void) | |
3378 | { | |
3379 | int r = reset_requested; | |
3380 | reset_requested = 0; | |
3381 | return r; | |
3382 | } | |
3383 | ||
3384 | int qemu_powerdown_requested(void) | |
3385 | { | |
3386 | int r = powerdown_requested; | |
3387 | powerdown_requested = 0; | |
3388 | return r; | |
3389 | } | |
3390 | ||
3391 | static int qemu_debug_requested(void) | |
3392 | { | |
3393 | int r = debug_requested; | |
3394 | debug_requested = 0; | |
3395 | return r; | |
3396 | } | |
3397 | ||
3398 | static int qemu_vmstop_requested(void) | |
3399 | { | |
3400 | int r = vmstop_requested; | |
3401 | vmstop_requested = 0; | |
3402 | return r; | |
3403 | } | |
3404 | ||
3405 | static void do_vm_stop(int reason) | |
3406 | { | |
3407 | if (vm_running) { | |
3408 | cpu_disable_ticks(); | |
3409 | vm_running = 0; | |
3410 | pause_all_vcpus(); | |
3411 | vm_state_notify(0, reason); | |
3412 | } | |
3413 | } | |
3414 | ||
3415 | void qemu_register_reset(QEMUResetHandler *func, void *opaque) | |
3416 | { | |
3417 | QEMUResetEntry *re = qemu_mallocz(sizeof(QEMUResetEntry)); | |
3418 | ||
3419 | re->func = func; | |
3420 | re->opaque = opaque; | |
3421 | TAILQ_INSERT_TAIL(&reset_handlers, re, entry); | |
3422 | } | |
3423 | ||
3424 | void qemu_unregister_reset(QEMUResetHandler *func, void *opaque) | |
3425 | { | |
3426 | QEMUResetEntry *re; | |
3427 | ||
3428 | TAILQ_FOREACH(re, &reset_handlers, entry) { | |
3429 | if (re->func == func && re->opaque == opaque) { | |
3430 | TAILQ_REMOVE(&reset_handlers, re, entry); | |
3431 | qemu_free(re); | |
3432 | return; | |
3433 | } | |
3434 | } | |
3435 | } | |
3436 | ||
3437 | void qemu_system_reset(void) | |
3438 | { | |
3439 | QEMUResetEntry *re, *nre; | |
3440 | ||
3441 | /* reset all devices */ | |
3442 | TAILQ_FOREACH_SAFE(re, &reset_handlers, entry, nre) { | |
3443 | re->func(re->opaque); | |
3444 | } | |
3445 | } | |
3446 | ||
3447 | void qemu_system_reset_request(void) | |
3448 | { | |
3449 | if (no_reboot) { | |
3450 | shutdown_requested = 1; | |
3451 | } else { | |
3452 | reset_requested = 1; | |
3453 | } | |
3454 | qemu_notify_event(); | |
3455 | } | |
3456 | ||
3457 | void qemu_system_shutdown_request(void) | |
3458 | { | |
3459 | shutdown_requested = 1; | |
3460 | qemu_notify_event(); | |
3461 | } | |
3462 | ||
3463 | void qemu_system_powerdown_request(void) | |
3464 | { | |
3465 | powerdown_requested = 1; | |
3466 | qemu_notify_event(); | |
3467 | } | |
3468 | ||
3469 | #ifdef CONFIG_IOTHREAD | |
3470 | static void qemu_system_vmstop_request(int reason) | |
3471 | { | |
3472 | vmstop_requested = reason; | |
3473 | qemu_notify_event(); | |
3474 | } | |
3475 | #endif | |
3476 | ||
3477 | #ifndef _WIN32 | |
3478 | static int io_thread_fd = -1; | |
3479 | ||
3480 | static void qemu_event_increment(void) | |
3481 | { | |
3482 | static const char byte = 0; | |
3483 | ||
3484 | if (io_thread_fd == -1) | |
3485 | return; | |
3486 | ||
3487 | write(io_thread_fd, &byte, sizeof(byte)); | |
3488 | } | |
3489 | ||
3490 | static void qemu_event_read(void *opaque) | |
3491 | { | |
3492 | int fd = (unsigned long)opaque; | |
3493 | ssize_t len; | |
3494 | ||
3495 | /* Drain the notify pipe */ | |
3496 | do { | |
3497 | char buffer[512]; | |
3498 | len = read(fd, buffer, sizeof(buffer)); | |
3499 | } while ((len == -1 && errno == EINTR) || len > 0); | |
3500 | } | |
3501 | ||
3502 | static int qemu_event_init(void) | |
3503 | { | |
3504 | int err; | |
3505 | int fds[2]; | |
3506 | ||
3507 | err = pipe(fds); | |
3508 | if (err == -1) | |
3509 | return -errno; | |
3510 | ||
3511 | err = fcntl_setfl(fds[0], O_NONBLOCK); | |
3512 | if (err < 0) | |
3513 | goto fail; | |
3514 | ||
3515 | err = fcntl_setfl(fds[1], O_NONBLOCK); | |
3516 | if (err < 0) | |
3517 | goto fail; | |
3518 | ||
3519 | qemu_set_fd_handler2(fds[0], NULL, qemu_event_read, NULL, | |
3520 | (void *)(unsigned long)fds[0]); | |
3521 | ||
3522 | io_thread_fd = fds[1]; | |
3523 | return 0; | |
3524 | ||
3525 | fail: | |
3526 | close(fds[0]); | |
3527 | close(fds[1]); | |
3528 | return err; | |
3529 | } | |
3530 | #else | |
3531 | HANDLE qemu_event_handle; | |
3532 | ||
3533 | static void dummy_event_handler(void *opaque) | |
3534 | { | |
3535 | } | |
3536 | ||
3537 | static int qemu_event_init(void) | |
3538 | { | |
3539 | qemu_event_handle = CreateEvent(NULL, FALSE, FALSE, NULL); | |
3540 | if (!qemu_event_handle) { | |
3541 | perror("Failed CreateEvent"); | |
3542 | return -1; | |
3543 | } | |
3544 | qemu_add_wait_object(qemu_event_handle, dummy_event_handler, NULL); | |
3545 | return 0; | |
3546 | } | |
3547 | ||
3548 | static void qemu_event_increment(void) | |
3549 | { | |
3550 | SetEvent(qemu_event_handle); | |
3551 | } | |
3552 | #endif | |
3553 | ||
3554 | static int cpu_can_run(CPUState *env) | |
3555 | { | |
3556 | if (env->stop) | |
3557 | return 0; | |
3558 | if (env->stopped) | |
3559 | return 0; | |
3560 | return 1; | |
3561 | } | |
3562 | ||
3563 | #ifndef CONFIG_IOTHREAD | |
3564 | static int qemu_init_main_loop(void) | |
3565 | { | |
3566 | return qemu_event_init(); | |
3567 | } | |
3568 | ||
3569 | void qemu_init_vcpu(void *_env) | |
3570 | { | |
3571 | CPUState *env = _env; | |
3572 | ||
3573 | if (kvm_enabled()) | |
3574 | kvm_init_vcpu(env); | |
3575 | return; | |
3576 | } | |
3577 | ||
3578 | int qemu_cpu_self(void *env) | |
3579 | { | |
3580 | return 1; | |
3581 | } | |
3582 | ||
3583 | static void resume_all_vcpus(void) | |
3584 | { | |
3585 | } | |
3586 | ||
3587 | static void pause_all_vcpus(void) | |
3588 | { | |
3589 | } | |
3590 | ||
3591 | void qemu_cpu_kick(void *env) | |
3592 | { | |
3593 | return; | |
3594 | } | |
3595 | ||
3596 | void qemu_notify_event(void) | |
3597 | { | |
3598 | CPUState *env = cpu_single_env; | |
3599 | ||
3600 | if (env) { | |
3601 | cpu_exit(env); | |
3602 | #ifdef USE_KQEMU | |
3603 | if (env->kqemu_enabled) | |
3604 | kqemu_cpu_interrupt(env); | |
3605 | #endif | |
3606 | } | |
3607 | } | |
3608 | ||
3609 | #define qemu_mutex_lock_iothread() do { } while (0) | |
3610 | #define qemu_mutex_unlock_iothread() do { } while (0) | |
3611 | ||
3612 | void vm_stop(int reason) | |
3613 | { | |
3614 | do_vm_stop(reason); | |
3615 | } | |
3616 | ||
3617 | #else /* CONFIG_IOTHREAD */ | |
3618 | ||
3619 | #include "qemu-thread.h" | |
3620 | ||
3621 | QemuMutex qemu_global_mutex; | |
3622 | static QemuMutex qemu_fair_mutex; | |
3623 | ||
3624 | static QemuThread io_thread; | |
3625 | ||
3626 | static QemuThread *tcg_cpu_thread; | |
3627 | static QemuCond *tcg_halt_cond; | |
3628 | ||
3629 | static int qemu_system_ready; | |
3630 | /* cpu creation */ | |
3631 | static QemuCond qemu_cpu_cond; | |
3632 | /* system init */ | |
3633 | static QemuCond qemu_system_cond; | |
3634 | static QemuCond qemu_pause_cond; | |
3635 | ||
3636 | static void block_io_signals(void); | |
3637 | static void unblock_io_signals(void); | |
3638 | static int tcg_has_work(void); | |
3639 | ||
3640 | static int qemu_init_main_loop(void) | |
3641 | { | |
3642 | int ret; | |
3643 | ||
3644 | ret = qemu_event_init(); | |
3645 | if (ret) | |
3646 | return ret; | |
3647 | ||
3648 | qemu_cond_init(&qemu_pause_cond); | |
3649 | qemu_mutex_init(&qemu_fair_mutex); | |
3650 | qemu_mutex_init(&qemu_global_mutex); | |
3651 | qemu_mutex_lock(&qemu_global_mutex); | |
3652 | ||
3653 | unblock_io_signals(); | |
3654 | qemu_thread_self(&io_thread); | |
3655 | ||
3656 | return 0; | |
3657 | } | |
3658 | ||
3659 | static void qemu_wait_io_event(CPUState *env) | |
3660 | { | |
3661 | while (!tcg_has_work()) | |
3662 | qemu_cond_timedwait(env->halt_cond, &qemu_global_mutex, 1000); | |
3663 | ||
3664 | qemu_mutex_unlock(&qemu_global_mutex); | |
3665 | ||
3666 | /* | |
3667 | * Users of qemu_global_mutex can be starved, having no chance | |
3668 | * to acquire it since this path will get to it first. | |
3669 | * So use another lock to provide fairness. | |
3670 | */ | |
3671 | qemu_mutex_lock(&qemu_fair_mutex); | |
3672 | qemu_mutex_unlock(&qemu_fair_mutex); | |
3673 | ||
3674 | qemu_mutex_lock(&qemu_global_mutex); | |
3675 | if (env->stop) { | |
3676 | env->stop = 0; | |
3677 | env->stopped = 1; | |
3678 | qemu_cond_signal(&qemu_pause_cond); | |
3679 | } | |
3680 | } | |
3681 | ||
3682 | static int qemu_cpu_exec(CPUState *env); | |
3683 | ||
3684 | static void *kvm_cpu_thread_fn(void *arg) | |
3685 | { | |
3686 | CPUState *env = arg; | |
3687 | ||
3688 | block_io_signals(); | |
3689 | qemu_thread_self(env->thread); | |
3690 | ||
3691 | /* signal CPU creation */ | |
3692 | qemu_mutex_lock(&qemu_global_mutex); | |
3693 | env->created = 1; | |
3694 | qemu_cond_signal(&qemu_cpu_cond); | |
3695 | ||
3696 | /* and wait for machine initialization */ | |
3697 | while (!qemu_system_ready) | |
3698 | qemu_cond_timedwait(&qemu_system_cond, &qemu_global_mutex, 100); | |
3699 | ||
3700 | while (1) { | |
3701 | if (cpu_can_run(env)) | |
3702 | qemu_cpu_exec(env); | |
3703 | qemu_wait_io_event(env); | |
3704 | } | |
3705 | ||
3706 | return NULL; | |
3707 | } | |
3708 | ||
3709 | static void tcg_cpu_exec(void); | |
3710 | ||
3711 | static void *tcg_cpu_thread_fn(void *arg) | |
3712 | { | |
3713 | CPUState *env = arg; | |
3714 | ||
3715 | block_io_signals(); | |
3716 | qemu_thread_self(env->thread); | |
3717 | ||
3718 | /* signal CPU creation */ | |
3719 | qemu_mutex_lock(&qemu_global_mutex); | |
3720 | for (env = first_cpu; env != NULL; env = env->next_cpu) | |
3721 | env->created = 1; | |
3722 | qemu_cond_signal(&qemu_cpu_cond); | |
3723 | ||
3724 | /* and wait for machine initialization */ | |
3725 | while (!qemu_system_ready) | |
3726 | qemu_cond_timedwait(&qemu_system_cond, &qemu_global_mutex, 100); | |
3727 | ||
3728 | while (1) { | |
3729 | tcg_cpu_exec(); | |
3730 | qemu_wait_io_event(cur_cpu); | |
3731 | } | |
3732 | ||
3733 | return NULL; | |
3734 | } | |
3735 | ||
3736 | void qemu_cpu_kick(void *_env) | |
3737 | { | |
3738 | CPUState *env = _env; | |
3739 | qemu_cond_broadcast(env->halt_cond); | |
3740 | if (kvm_enabled()) | |
3741 | qemu_thread_signal(env->thread, SIGUSR1); | |
3742 | } | |
3743 | ||
3744 | int qemu_cpu_self(void *env) | |
3745 | { | |
3746 | return (cpu_single_env != NULL); | |
3747 | } | |
3748 | ||
3749 | static void cpu_signal(int sig) | |
3750 | { | |
3751 | if (cpu_single_env) | |
3752 | cpu_exit(cpu_single_env); | |
3753 | } | |
3754 | ||
3755 | static void block_io_signals(void) | |
3756 | { | |
3757 | sigset_t set; | |
3758 | struct sigaction sigact; | |
3759 | ||
3760 | sigemptyset(&set); | |
3761 | sigaddset(&set, SIGUSR2); | |
3762 | sigaddset(&set, SIGIO); | |
3763 | sigaddset(&set, SIGALRM); | |
3764 | pthread_sigmask(SIG_BLOCK, &set, NULL); | |
3765 | ||
3766 | sigemptyset(&set); | |
3767 | sigaddset(&set, SIGUSR1); | |
3768 | pthread_sigmask(SIG_UNBLOCK, &set, NULL); | |
3769 | ||
3770 | memset(&sigact, 0, sizeof(sigact)); | |
3771 | sigact.sa_handler = cpu_signal; | |
3772 | sigaction(SIGUSR1, &sigact, NULL); | |
3773 | } | |
3774 | ||
3775 | static void unblock_io_signals(void) | |
3776 | { | |
3777 | sigset_t set; | |
3778 | ||
3779 | sigemptyset(&set); | |
3780 | sigaddset(&set, SIGUSR2); | |
3781 | sigaddset(&set, SIGIO); | |
3782 | sigaddset(&set, SIGALRM); | |
3783 | pthread_sigmask(SIG_UNBLOCK, &set, NULL); | |
3784 | ||
3785 | sigemptyset(&set); | |
3786 | sigaddset(&set, SIGUSR1); | |
3787 | pthread_sigmask(SIG_BLOCK, &set, NULL); | |
3788 | } | |
3789 | ||
3790 | static void qemu_signal_lock(unsigned int msecs) | |
3791 | { | |
3792 | qemu_mutex_lock(&qemu_fair_mutex); | |
3793 | ||
3794 | while (qemu_mutex_trylock(&qemu_global_mutex)) { | |
3795 | qemu_thread_signal(tcg_cpu_thread, SIGUSR1); | |
3796 | if (!qemu_mutex_timedlock(&qemu_global_mutex, msecs)) | |
3797 | break; | |
3798 | } | |
3799 | qemu_mutex_unlock(&qemu_fair_mutex); | |
3800 | } | |
3801 | ||
3802 | static void qemu_mutex_lock_iothread(void) | |
3803 | { | |
3804 | if (kvm_enabled()) { | |
3805 | qemu_mutex_lock(&qemu_fair_mutex); | |
3806 | qemu_mutex_lock(&qemu_global_mutex); | |
3807 | qemu_mutex_unlock(&qemu_fair_mutex); | |
3808 | } else | |
3809 | qemu_signal_lock(100); | |
3810 | } | |
3811 | ||
3812 | static void qemu_mutex_unlock_iothread(void) | |
3813 | { | |
3814 | qemu_mutex_unlock(&qemu_global_mutex); | |
3815 | } | |
3816 | ||
3817 | static int all_vcpus_paused(void) | |
3818 | { | |
3819 | CPUState *penv = first_cpu; | |
3820 | ||
3821 | while (penv) { | |
3822 | if (!penv->stopped) | |
3823 | return 0; | |
3824 | penv = (CPUState *)penv->next_cpu; | |
3825 | } | |
3826 | ||
3827 | return 1; | |
3828 | } | |
3829 | ||
3830 | static void pause_all_vcpus(void) | |
3831 | { | |
3832 | CPUState *penv = first_cpu; | |
3833 | ||
3834 | while (penv) { | |
3835 | penv->stop = 1; | |
3836 | qemu_thread_signal(penv->thread, SIGUSR1); | |
3837 | qemu_cpu_kick(penv); | |
3838 | penv = (CPUState *)penv->next_cpu; | |
3839 | } | |
3840 | ||
3841 | while (!all_vcpus_paused()) { | |
3842 | qemu_cond_timedwait(&qemu_pause_cond, &qemu_global_mutex, 100); | |
3843 | penv = first_cpu; | |
3844 | while (penv) { | |
3845 | qemu_thread_signal(penv->thread, SIGUSR1); | |
3846 | penv = (CPUState *)penv->next_cpu; | |
3847 | } | |
3848 | } | |
3849 | } | |
3850 | ||
3851 | static void resume_all_vcpus(void) | |
3852 | { | |
3853 | CPUState *penv = first_cpu; | |
3854 | ||
3855 | while (penv) { | |
3856 | penv->stop = 0; | |
3857 | penv->stopped = 0; | |
3858 | qemu_thread_signal(penv->thread, SIGUSR1); | |
3859 | qemu_cpu_kick(penv); | |
3860 | penv = (CPUState *)penv->next_cpu; | |
3861 | } | |
3862 | } | |
3863 | ||
3864 | static void tcg_init_vcpu(void *_env) | |
3865 | { | |
3866 | CPUState *env = _env; | |
3867 | /* share a single thread for all cpus with TCG */ | |
3868 | if (!tcg_cpu_thread) { | |
3869 | env->thread = qemu_mallocz(sizeof(QemuThread)); | |
3870 | env->halt_cond = qemu_mallocz(sizeof(QemuCond)); | |
3871 | qemu_cond_init(env->halt_cond); | |
3872 | qemu_thread_create(env->thread, tcg_cpu_thread_fn, env); | |
3873 | while (env->created == 0) | |
3874 | qemu_cond_timedwait(&qemu_cpu_cond, &qemu_global_mutex, 100); | |
3875 | tcg_cpu_thread = env->thread; | |
3876 | tcg_halt_cond = env->halt_cond; | |
3877 | } else { | |
3878 | env->thread = tcg_cpu_thread; | |
3879 | env->halt_cond = tcg_halt_cond; | |
3880 | } | |
3881 | } | |
3882 | ||
3883 | static void kvm_start_vcpu(CPUState *env) | |
3884 | { | |
3885 | kvm_init_vcpu(env); | |
3886 | env->thread = qemu_mallocz(sizeof(QemuThread)); | |
3887 | env->halt_cond = qemu_mallocz(sizeof(QemuCond)); | |
3888 | qemu_cond_init(env->halt_cond); | |
3889 | qemu_thread_create(env->thread, kvm_cpu_thread_fn, env); | |
3890 | while (env->created == 0) | |
3891 | qemu_cond_timedwait(&qemu_cpu_cond, &qemu_global_mutex, 100); | |
3892 | } | |
3893 | ||
3894 | void qemu_init_vcpu(void *_env) | |
3895 | { | |
3896 | CPUState *env = _env; | |
3897 | ||
3898 | if (kvm_enabled()) | |
3899 | kvm_start_vcpu(env); | |
3900 | else | |
3901 | tcg_init_vcpu(env); | |
3902 | } | |
3903 | ||
3904 | void qemu_notify_event(void) | |
3905 | { | |
3906 | qemu_event_increment(); | |
3907 | } | |
3908 | ||
3909 | void vm_stop(int reason) | |
3910 | { | |
3911 | QemuThread me; | |
3912 | qemu_thread_self(&me); | |
3913 | ||
3914 | if (!qemu_thread_equal(&me, &io_thread)) { | |
3915 | qemu_system_vmstop_request(reason); | |
3916 | /* | |
3917 | * FIXME: should not return to device code in case | |
3918 | * vm_stop() has been requested. | |
3919 | */ | |
3920 | if (cpu_single_env) { | |
3921 | cpu_exit(cpu_single_env); | |
3922 | cpu_single_env->stop = 1; | |
3923 | } | |
3924 | return; | |
3925 | } | |
3926 | do_vm_stop(reason); | |
3927 | } | |
3928 | ||
3929 | #endif | |
3930 | ||
3931 | ||
3932 | #ifdef _WIN32 | |
3933 | static void host_main_loop_wait(int *timeout) | |
3934 | { | |
3935 | int ret, ret2, i; | |
3936 | PollingEntry *pe; | |
3937 | ||
3938 | ||
3939 | /* XXX: need to suppress polling by better using win32 events */ | |
3940 | ret = 0; | |
3941 | for(pe = first_polling_entry; pe != NULL; pe = pe->next) { | |
3942 | ret |= pe->func(pe->opaque); | |
3943 | } | |
3944 | if (ret == 0) { | |
3945 | int err; | |
3946 | WaitObjects *w = &wait_objects; | |
3947 | ||
3948 | ret = WaitForMultipleObjects(w->num, w->events, FALSE, *timeout); | |
3949 | if (WAIT_OBJECT_0 + 0 <= ret && ret <= WAIT_OBJECT_0 + w->num - 1) { | |
3950 | if (w->func[ret - WAIT_OBJECT_0]) | |
3951 | w->func[ret - WAIT_OBJECT_0](w->opaque[ret - WAIT_OBJECT_0]); | |
3952 | ||
3953 | /* Check for additional signaled events */ | |
3954 | for(i = (ret - WAIT_OBJECT_0 + 1); i < w->num; i++) { | |
3955 | ||
3956 | /* Check if event is signaled */ | |
3957 | ret2 = WaitForSingleObject(w->events[i], 0); | |
3958 | if(ret2 == WAIT_OBJECT_0) { | |
3959 | if (w->func[i]) | |
3960 | w->func[i](w->opaque[i]); | |
3961 | } else if (ret2 == WAIT_TIMEOUT) { | |
3962 | } else { | |
3963 | err = GetLastError(); | |
3964 | fprintf(stderr, "WaitForSingleObject error %d %d\n", i, err); | |
3965 | } | |
3966 | } | |
3967 | } else if (ret == WAIT_TIMEOUT) { | |
3968 | } else { | |
3969 | err = GetLastError(); | |
3970 | fprintf(stderr, "WaitForMultipleObjects error %d %d\n", ret, err); | |
3971 | } | |
3972 | } | |
3973 | ||
3974 | *timeout = 0; | |
3975 | } | |
3976 | #else | |
3977 | static void host_main_loop_wait(int *timeout) | |
3978 | { | |
3979 | } | |
3980 | #endif | |
3981 | ||
3982 | void main_loop_wait(int timeout) | |
3983 | { | |
3984 | IOHandlerRecord *ioh; | |
3985 | fd_set rfds, wfds, xfds; | |
3986 | int ret, nfds; | |
3987 | struct timeval tv; | |
3988 | ||
3989 | qemu_bh_update_timeout(&timeout); | |
3990 | ||
3991 | host_main_loop_wait(&timeout); | |
3992 | ||
3993 | /* poll any events */ | |
3994 | /* XXX: separate device handlers from system ones */ | |
3995 | nfds = -1; | |
3996 | FD_ZERO(&rfds); | |
3997 | FD_ZERO(&wfds); | |
3998 | FD_ZERO(&xfds); | |
3999 | for(ioh = first_io_handler; ioh != NULL; ioh = ioh->next) { | |
4000 | if (ioh->deleted) | |
4001 | continue; | |
4002 | if (ioh->fd_read && | |
4003 | (!ioh->fd_read_poll || | |
4004 | ioh->fd_read_poll(ioh->opaque) != 0)) { | |
4005 | FD_SET(ioh->fd, &rfds); | |
4006 | if (ioh->fd > nfds) | |
4007 | nfds = ioh->fd; | |
4008 | } | |
4009 | if (ioh->fd_write) { | |
4010 | FD_SET(ioh->fd, &wfds); | |
4011 | if (ioh->fd > nfds) | |
4012 | nfds = ioh->fd; | |
4013 | } | |
4014 | } | |
4015 | ||
4016 | tv.tv_sec = timeout / 1000; | |
4017 | tv.tv_usec = (timeout % 1000) * 1000; | |
4018 | ||
4019 | slirp_select_fill(&nfds, &rfds, &wfds, &xfds); | |
4020 | ||
4021 | qemu_mutex_unlock_iothread(); | |
4022 | ret = select(nfds + 1, &rfds, &wfds, &xfds, &tv); | |
4023 | qemu_mutex_lock_iothread(); | |
4024 | if (ret > 0) { | |
4025 | IOHandlerRecord **pioh; | |
4026 | ||
4027 | for(ioh = first_io_handler; ioh != NULL; ioh = ioh->next) { | |
4028 | if (!ioh->deleted && ioh->fd_read && FD_ISSET(ioh->fd, &rfds)) { | |
4029 | ioh->fd_read(ioh->opaque); | |
4030 | } | |
4031 | if (!ioh->deleted && ioh->fd_write && FD_ISSET(ioh->fd, &wfds)) { | |
4032 | ioh->fd_write(ioh->opaque); | |
4033 | } | |
4034 | } | |
4035 | ||
4036 | /* remove deleted IO handlers */ | |
4037 | pioh = &first_io_handler; | |
4038 | while (*pioh) { | |
4039 | ioh = *pioh; | |
4040 | if (ioh->deleted) { | |
4041 | *pioh = ioh->next; | |
4042 | qemu_free(ioh); | |
4043 | } else | |
4044 | pioh = &ioh->next; | |
4045 | } | |
4046 | } | |
4047 | ||
4048 | slirp_select_poll(&rfds, &wfds, &xfds, (ret < 0)); | |
4049 | ||
4050 | /* rearm timer, if not periodic */ | |
4051 | if (alarm_timer->flags & ALARM_FLAG_EXPIRED) { | |
4052 | alarm_timer->flags &= ~ALARM_FLAG_EXPIRED; | |
4053 | qemu_rearm_alarm_timer(alarm_timer); | |
4054 | } | |
4055 | ||
4056 | /* vm time timers */ | |
4057 | if (vm_running) { | |
4058 | if (!cur_cpu || likely(!(cur_cpu->singlestep_enabled & SSTEP_NOTIMER))) | |
4059 | qemu_run_timers(&active_timers[QEMU_TIMER_VIRTUAL], | |
4060 | qemu_get_clock(vm_clock)); | |
4061 | } | |
4062 | ||
4063 | /* real time timers */ | |
4064 | qemu_run_timers(&active_timers[QEMU_TIMER_REALTIME], | |
4065 | qemu_get_clock(rt_clock)); | |
4066 | ||
4067 | /* Check bottom-halves last in case any of the earlier events triggered | |
4068 | them. */ | |
4069 | qemu_bh_poll(); | |
4070 | ||
4071 | } | |
4072 | ||
4073 | static int qemu_cpu_exec(CPUState *env) | |
4074 | { | |
4075 | int ret; | |
4076 | #ifdef CONFIG_PROFILER | |
4077 | int64_t ti; | |
4078 | #endif | |
4079 | ||
4080 | #ifdef CONFIG_PROFILER | |
4081 | ti = profile_getclock(); | |
4082 | #endif | |
4083 | if (use_icount) { | |
4084 | int64_t count; | |
4085 | int decr; | |
4086 | qemu_icount -= (env->icount_decr.u16.low + env->icount_extra); | |
4087 | env->icount_decr.u16.low = 0; | |
4088 | env->icount_extra = 0; | |
4089 | count = qemu_next_deadline(); | |
4090 | count = (count + (1 << icount_time_shift) - 1) | |
4091 | >> icount_time_shift; | |
4092 | qemu_icount += count; | |
4093 | decr = (count > 0xffff) ? 0xffff : count; | |
4094 | count -= decr; | |
4095 | env->icount_decr.u16.low = decr; | |
4096 | env->icount_extra = count; | |
4097 | } | |
4098 | ret = cpu_exec(env); | |
4099 | #ifdef CONFIG_PROFILER | |
4100 | qemu_time += profile_getclock() - ti; | |
4101 | #endif | |
4102 | if (use_icount) { | |
4103 | /* Fold pending instructions back into the | |
4104 | instruction counter, and clear the interrupt flag. */ | |
4105 | qemu_icount -= (env->icount_decr.u16.low | |
4106 | + env->icount_extra); | |
4107 | env->icount_decr.u32 = 0; | |
4108 | env->icount_extra = 0; | |
4109 | } | |
4110 | return ret; | |
4111 | } | |
4112 | ||
4113 | static void tcg_cpu_exec(void) | |
4114 | { | |
4115 | int ret = 0; | |
4116 | ||
4117 | if (next_cpu == NULL) | |
4118 | next_cpu = first_cpu; | |
4119 | for (; next_cpu != NULL; next_cpu = next_cpu->next_cpu) { | |
4120 | CPUState *env = cur_cpu = next_cpu; | |
4121 | ||
4122 | if (!vm_running) | |
4123 | break; | |
4124 | if (timer_alarm_pending) { | |
4125 | timer_alarm_pending = 0; | |
4126 | break; | |
4127 | } | |
4128 | if (cpu_can_run(env)) | |
4129 | ret = qemu_cpu_exec(env); | |
4130 | if (ret == EXCP_DEBUG) { | |
4131 | gdb_set_stop_cpu(env); | |
4132 | debug_requested = 1; | |
4133 | break; | |
4134 | } | |
4135 | } | |
4136 | } | |
4137 | ||
4138 | static int cpu_has_work(CPUState *env) | |
4139 | { | |
4140 | if (env->stop) | |
4141 | return 1; | |
4142 | if (env->stopped) | |
4143 | return 0; | |
4144 | if (!env->halted) | |
4145 | return 1; | |
4146 | if (qemu_cpu_has_work(env)) | |
4147 | return 1; | |
4148 | return 0; | |
4149 | } | |
4150 | ||
4151 | static int tcg_has_work(void) | |
4152 | { | |
4153 | CPUState *env; | |
4154 | ||
4155 | for (env = first_cpu; env != NULL; env = env->next_cpu) | |
4156 | if (cpu_has_work(env)) | |
4157 | return 1; | |
4158 | return 0; | |
4159 | } | |
4160 | ||
4161 | static int qemu_calculate_timeout(void) | |
4162 | { | |
4163 | #ifndef CONFIG_IOTHREAD | |
4164 | int timeout; | |
4165 | ||
4166 | if (!vm_running) | |
4167 | timeout = 5000; | |
4168 | else if (tcg_has_work()) | |
4169 | timeout = 0; | |
4170 | else if (!use_icount) | |
4171 | timeout = 5000; | |
4172 | else { | |
4173 | /* XXX: use timeout computed from timers */ | |
4174 | int64_t add; | |
4175 | int64_t delta; | |
4176 | /* Advance virtual time to the next event. */ | |
4177 | if (use_icount == 1) { | |
4178 | /* When not using an adaptive execution frequency | |
4179 | we tend to get badly out of sync with real time, | |
4180 | so just delay for a reasonable amount of time. */ | |
4181 | delta = 0; | |
4182 | } else { | |
4183 | delta = cpu_get_icount() - cpu_get_clock(); | |
4184 | } | |
4185 | if (delta > 0) { | |
4186 | /* If virtual time is ahead of real time then just | |
4187 | wait for IO. */ | |
4188 | timeout = (delta / 1000000) + 1; | |
4189 | } else { | |
4190 | /* Wait for either IO to occur or the next | |
4191 | timer event. */ | |
4192 | add = qemu_next_deadline(); | |
4193 | /* We advance the timer before checking for IO. | |
4194 | Limit the amount we advance so that early IO | |
4195 | activity won't get the guest too far ahead. */ | |
4196 | if (add > 10000000) | |
4197 | add = 10000000; | |
4198 | delta += add; | |
4199 | add = (add + (1 << icount_time_shift) - 1) | |
4200 | >> icount_time_shift; | |
4201 | qemu_icount += add; | |
4202 | timeout = delta / 1000000; | |
4203 | if (timeout < 0) | |
4204 | timeout = 0; | |
4205 | } | |
4206 | } | |
4207 | ||
4208 | return timeout; | |
4209 | #else /* CONFIG_IOTHREAD */ | |
4210 | return 1000; | |
4211 | #endif | |
4212 | } | |
4213 | ||
4214 | static int vm_can_run(void) | |
4215 | { | |
4216 | if (powerdown_requested) | |
4217 | return 0; | |
4218 | if (reset_requested) | |
4219 | return 0; | |
4220 | if (shutdown_requested) | |
4221 | return 0; | |
4222 | if (debug_requested) | |
4223 | return 0; | |
4224 | return 1; | |
4225 | } | |
4226 | ||
4227 | qemu_irq qemu_system_powerdown; | |
4228 | ||
4229 | static void main_loop(void) | |
4230 | { | |
4231 | int r; | |
4232 | ||
4233 | #ifdef CONFIG_IOTHREAD | |
4234 | qemu_system_ready = 1; | |
4235 | qemu_cond_broadcast(&qemu_system_cond); | |
4236 | #endif | |
4237 | ||
4238 | for (;;) { | |
4239 | do { | |
4240 | #ifdef CONFIG_PROFILER | |
4241 | int64_t ti; | |
4242 | #endif | |
4243 | #ifndef CONFIG_IOTHREAD | |
4244 | tcg_cpu_exec(); | |
4245 | #endif | |
4246 | #ifdef CONFIG_PROFILER | |
4247 | ti = profile_getclock(); | |
4248 | #endif | |
4249 | main_loop_wait(qemu_calculate_timeout()); | |
4250 | #ifdef CONFIG_PROFILER | |
4251 | dev_time += profile_getclock() - ti; | |
4252 | #endif | |
4253 | } while (vm_can_run()); | |
4254 | ||
4255 | if (qemu_debug_requested()) | |
4256 | vm_stop(EXCP_DEBUG); | |
4257 | if (qemu_shutdown_requested()) { | |
4258 | if (no_shutdown) { | |
4259 | vm_stop(0); | |
4260 | no_shutdown = 0; | |
4261 | } else | |
4262 | break; | |
4263 | } | |
4264 | if (qemu_reset_requested()) { | |
4265 | pause_all_vcpus(); | |
4266 | qemu_system_reset(); | |
4267 | resume_all_vcpus(); | |
4268 | } | |
4269 | if (qemu_powerdown_requested()) { | |
4270 | qemu_irq_raise(qemu_system_powerdown); | |
4271 | } | |
4272 | if ((r = qemu_vmstop_requested())) | |
4273 | vm_stop(r); | |
4274 | } | |
4275 | pause_all_vcpus(); | |
4276 | } | |
4277 | ||
4278 | static void version(void) | |
4279 | { | |
4280 | printf("QEMU PC emulator version " QEMU_VERSION QEMU_PKGVERSION ", Copyright (c) 2003-2008 Fabrice Bellard\n"); | |
4281 | } | |
4282 | ||
4283 | static void help(int exitcode) | |
4284 | { | |
4285 | version(); | |
4286 | printf("usage: %s [options] [disk_image]\n" | |
4287 | "\n" | |
4288 | "'disk_image' is a raw hard image image for IDE hard disk 0\n" | |
4289 | "\n" | |
4290 | #define DEF(option, opt_arg, opt_enum, opt_help) \ | |
4291 | opt_help | |
4292 | #define DEFHEADING(text) stringify(text) "\n" | |
4293 | #include "qemu-options.h" | |
4294 | #undef DEF | |
4295 | #undef DEFHEADING | |
4296 | #undef GEN_DOCS | |
4297 | "\n" | |
4298 | "During emulation, the following keys are useful:\n" | |
4299 | "ctrl-alt-f toggle full screen\n" | |
4300 | "ctrl-alt-n switch to virtual console 'n'\n" | |
4301 | "ctrl-alt toggle mouse and keyboard grab\n" | |
4302 | "\n" | |
4303 | "When using -nographic, press 'ctrl-a h' to get some help.\n" | |
4304 | , | |
4305 | "qemu", | |
4306 | DEFAULT_RAM_SIZE, | |
4307 | #ifndef _WIN32 | |
4308 | DEFAULT_NETWORK_SCRIPT, | |
4309 | DEFAULT_NETWORK_DOWN_SCRIPT, | |
4310 | #endif | |
4311 | DEFAULT_GDBSTUB_PORT, | |
4312 | "/tmp/qemu.log"); | |
4313 | exit(exitcode); | |
4314 | } | |
4315 | ||
4316 | #define HAS_ARG 0x0001 | |
4317 | ||
4318 | enum { | |
4319 | #define DEF(option, opt_arg, opt_enum, opt_help) \ | |
4320 | opt_enum, | |
4321 | #define DEFHEADING(text) | |
4322 | #include "qemu-options.h" | |
4323 | #undef DEF | |
4324 | #undef DEFHEADING | |
4325 | #undef GEN_DOCS | |
4326 | }; | |
4327 | ||
4328 | typedef struct QEMUOption { | |
4329 | const char *name; | |
4330 | int flags; | |
4331 | int index; | |
4332 | } QEMUOption; | |
4333 | ||
4334 | static const QEMUOption qemu_options[] = { | |
4335 | { "h", 0, QEMU_OPTION_h }, | |
4336 | #define DEF(option, opt_arg, opt_enum, opt_help) \ | |
4337 | { option, opt_arg, opt_enum }, | |
4338 | #define DEFHEADING(text) | |
4339 | #include "qemu-options.h" | |
4340 | #undef DEF | |
4341 | #undef DEFHEADING | |
4342 | #undef GEN_DOCS | |
4343 | { NULL }, | |
4344 | }; | |
4345 | ||
4346 | #ifdef HAS_AUDIO | |
4347 | struct soundhw soundhw[] = { | |
4348 | #ifdef HAS_AUDIO_CHOICE | |
4349 | #if defined(TARGET_I386) || defined(TARGET_MIPS) | |
4350 | { | |
4351 | "pcspk", | |
4352 | "PC speaker", | |
4353 | 0, | |
4354 | 1, | |
4355 | { .init_isa = pcspk_audio_init } | |
4356 | }, | |
4357 | #endif | |
4358 | ||
4359 | #ifdef CONFIG_SB16 | |
4360 | { | |
4361 | "sb16", | |
4362 | "Creative Sound Blaster 16", | |
4363 | 0, | |
4364 | 1, | |
4365 | { .init_isa = SB16_init } | |
4366 | }, | |
4367 | #endif | |
4368 | ||
4369 | #ifdef CONFIG_CS4231A | |
4370 | { | |
4371 | "cs4231a", | |
4372 | "CS4231A", | |
4373 | 0, | |
4374 | 1, | |
4375 | { .init_isa = cs4231a_init } | |
4376 | }, | |
4377 | #endif | |
4378 | ||
4379 | #ifdef CONFIG_ADLIB | |
4380 | { | |
4381 | "adlib", | |
4382 | #ifdef HAS_YMF262 | |
4383 | "Yamaha YMF262 (OPL3)", | |
4384 | #else | |
4385 | "Yamaha YM3812 (OPL2)", | |
4386 | #endif | |
4387 | 0, | |
4388 | 1, | |
4389 | { .init_isa = Adlib_init } | |
4390 | }, | |
4391 | #endif | |
4392 | ||
4393 | #ifdef CONFIG_GUS | |
4394 | { | |
4395 | "gus", | |
4396 | "Gravis Ultrasound GF1", | |
4397 | 0, | |
4398 | 1, | |
4399 | { .init_isa = GUS_init } | |
4400 | }, | |
4401 | #endif | |
4402 | ||
4403 | #ifdef CONFIG_AC97 | |
4404 | { | |
4405 | "ac97", | |
4406 | "Intel 82801AA AC97 Audio", | |
4407 | 0, | |
4408 | 0, | |
4409 | { .init_pci = ac97_init } | |
4410 | }, | |
4411 | #endif | |
4412 | ||
4413 | #ifdef CONFIG_ES1370 | |
4414 | { | |
4415 | "es1370", | |
4416 | "ENSONIQ AudioPCI ES1370", | |
4417 | 0, | |
4418 | 0, | |
4419 | { .init_pci = es1370_init } | |
4420 | }, | |
4421 | #endif | |
4422 | ||
4423 | #endif /* HAS_AUDIO_CHOICE */ | |
4424 | ||
4425 | { NULL, NULL, 0, 0, { NULL } } | |
4426 | }; | |
4427 | ||
4428 | static void select_soundhw (const char *optarg) | |
4429 | { | |
4430 | struct soundhw *c; | |
4431 | ||
4432 | if (*optarg == '?') { | |
4433 | show_valid_cards: | |
4434 | ||
4435 | printf ("Valid sound card names (comma separated):\n"); | |
4436 | for (c = soundhw; c->name; ++c) { | |
4437 | printf ("%-11s %s\n", c->name, c->descr); | |
4438 | } | |
4439 | printf ("\n-soundhw all will enable all of the above\n"); | |
4440 | exit (*optarg != '?'); | |
4441 | } | |
4442 | else { | |
4443 | size_t l; | |
4444 | const char *p; | |
4445 | char *e; | |
4446 | int bad_card = 0; | |
4447 | ||
4448 | if (!strcmp (optarg, "all")) { | |
4449 | for (c = soundhw; c->name; ++c) { | |
4450 | c->enabled = 1; | |
4451 | } | |
4452 | return; | |
4453 | } | |
4454 | ||
4455 | p = optarg; | |
4456 | while (*p) { | |
4457 | e = strchr (p, ','); | |
4458 | l = !e ? strlen (p) : (size_t) (e - p); | |
4459 | ||
4460 | for (c = soundhw; c->name; ++c) { | |
4461 | if (!strncmp (c->name, p, l)) { | |
4462 | c->enabled = 1; | |
4463 | break; | |
4464 | } | |
4465 | } | |
4466 | ||
4467 | if (!c->name) { | |
4468 | if (l > 80) { | |
4469 | fprintf (stderr, | |
4470 | "Unknown sound card name (too big to show)\n"); | |
4471 | } | |
4472 | else { | |
4473 | fprintf (stderr, "Unknown sound card name `%.*s'\n", | |
4474 | (int) l, p); | |
4475 | } | |
4476 | bad_card = 1; | |
4477 | } | |
4478 | p += l + (e != NULL); | |
4479 | } | |
4480 | ||
4481 | if (bad_card) | |
4482 | goto show_valid_cards; | |
4483 | } | |
4484 | } | |
4485 | #endif | |
4486 | ||
4487 | static void select_vgahw (const char *p) | |
4488 | { | |
4489 | const char *opts; | |
4490 | ||
4491 | cirrus_vga_enabled = 0; | |
4492 | std_vga_enabled = 0; | |
4493 | vmsvga_enabled = 0; | |
4494 | xenfb_enabled = 0; | |
4495 | if (strstart(p, "std", &opts)) { | |
4496 | std_vga_enabled = 1; | |
4497 | } else if (strstart(p, "cirrus", &opts)) { | |
4498 | cirrus_vga_enabled = 1; | |
4499 | } else if (strstart(p, "vmware", &opts)) { | |
4500 | vmsvga_enabled = 1; | |
4501 | } else if (strstart(p, "xenfb", &opts)) { | |
4502 | xenfb_enabled = 1; | |
4503 | } else if (!strstart(p, "none", &opts)) { | |
4504 | invalid_vga: | |
4505 | fprintf(stderr, "Unknown vga type: %s\n", p); | |
4506 | exit(1); | |
4507 | } | |
4508 | while (*opts) { | |
4509 | const char *nextopt; | |
4510 | ||
4511 | if (strstart(opts, ",retrace=", &nextopt)) { | |
4512 | opts = nextopt; | |
4513 | if (strstart(opts, "dumb", &nextopt)) | |
4514 | vga_retrace_method = VGA_RETRACE_DUMB; | |
4515 | else if (strstart(opts, "precise", &nextopt)) | |
4516 | vga_retrace_method = VGA_RETRACE_PRECISE; | |
4517 | else goto invalid_vga; | |
4518 | } else goto invalid_vga; | |
4519 | opts = nextopt; | |
4520 | } | |
4521 | } | |
4522 | ||
4523 | #ifdef TARGET_I386 | |
4524 | static int balloon_parse(const char *arg) | |
4525 | { | |
4526 | char buf[128]; | |
4527 | const char *p; | |
4528 | ||
4529 | if (!strcmp(arg, "none")) { | |
4530 | virtio_balloon = 0; | |
4531 | } else if (!strncmp(arg, "virtio", 6)) { | |
4532 | virtio_balloon = 1; | |
4533 | if (arg[6] == ',') { | |
4534 | p = arg + 7; | |
4535 | if (get_param_value(buf, sizeof(buf), "addr", p)) { | |
4536 | virtio_balloon_devaddr = strdup(buf); | |
4537 | } | |
4538 | } | |
4539 | } else { | |
4540 | return -1; | |
4541 | } | |
4542 | return 0; | |
4543 | } | |
4544 | #endif | |
4545 | ||
4546 | #ifdef _WIN32 | |
4547 | static BOOL WINAPI qemu_ctrl_handler(DWORD type) | |
4548 | { | |
4549 | exit(STATUS_CONTROL_C_EXIT); | |
4550 | return TRUE; | |
4551 | } | |
4552 | #endif | |
4553 | ||
4554 | int qemu_uuid_parse(const char *str, uint8_t *uuid) | |
4555 | { | |
4556 | int ret; | |
4557 | ||
4558 | if(strlen(str) != 36) | |
4559 | return -1; | |
4560 | ||
4561 | ret = sscanf(str, UUID_FMT, &uuid[0], &uuid[1], &uuid[2], &uuid[3], | |
4562 | &uuid[4], &uuid[5], &uuid[6], &uuid[7], &uuid[8], &uuid[9], | |
4563 | &uuid[10], &uuid[11], &uuid[12], &uuid[13], &uuid[14], &uuid[15]); | |
4564 | ||
4565 | if(ret != 16) | |
4566 | return -1; | |
4567 | ||
4568 | #ifdef TARGET_I386 | |
4569 | smbios_add_field(1, offsetof(struct smbios_type_1, uuid), 16, uuid); | |
4570 | #endif | |
4571 | ||
4572 | return 0; | |
4573 | } | |
4574 | ||
4575 | #define MAX_NET_CLIENTS 32 | |
4576 | ||
4577 | #ifndef _WIN32 | |
4578 | ||
4579 | static void termsig_handler(int signal) | |
4580 | { | |
4581 | qemu_system_shutdown_request(); | |
4582 | } | |
4583 | ||
4584 | static void sigchld_handler(int signal) | |
4585 | { | |
4586 | waitpid(-1, NULL, WNOHANG); | |
4587 | } | |
4588 | ||
4589 | static void sighandler_setup(void) | |
4590 | { | |
4591 | struct sigaction act; | |
4592 | ||
4593 | memset(&act, 0, sizeof(act)); | |
4594 | act.sa_handler = termsig_handler; | |
4595 | sigaction(SIGINT, &act, NULL); | |
4596 | sigaction(SIGHUP, &act, NULL); | |
4597 | sigaction(SIGTERM, &act, NULL); | |
4598 | ||
4599 | act.sa_handler = sigchld_handler; | |
4600 | act.sa_flags = SA_NOCLDSTOP; | |
4601 | sigaction(SIGCHLD, &act, NULL); | |
4602 | } | |
4603 | ||
4604 | #endif | |
4605 | ||
4606 | #ifdef _WIN32 | |
4607 | /* Look for support files in the same directory as the executable. */ | |
4608 | static char *find_datadir(const char *argv0) | |
4609 | { | |
4610 | char *p; | |
4611 | char buf[MAX_PATH]; | |
4612 | DWORD len; | |
4613 | ||
4614 | len = GetModuleFileName(NULL, buf, sizeof(buf) - 1); | |
4615 | if (len == 0) { | |
4616 | return NULL; | |
4617 | } | |
4618 | ||
4619 | buf[len] = 0; | |
4620 | p = buf + len - 1; | |
4621 | while (p != buf && *p != '\\') | |
4622 | p--; | |
4623 | *p = 0; | |
4624 | if (access(buf, R_OK) == 0) { | |
4625 | return qemu_strdup(buf); | |
4626 | } | |
4627 | return NULL; | |
4628 | } | |
4629 | #else /* !_WIN32 */ | |
4630 | ||
4631 | /* Find a likely location for support files using the location of the binary. | |
4632 | For installed binaries this will be "$bindir/../share/qemu". When | |
4633 | running from the build tree this will be "$bindir/../pc-bios". */ | |
4634 | #define SHARE_SUFFIX "/share/qemu" | |
4635 | #define BUILD_SUFFIX "/pc-bios" | |
4636 | static char *find_datadir(const char *argv0) | |
4637 | { | |
4638 | char *dir; | |
4639 | char *p = NULL; | |
4640 | char *res; | |
4641 | #ifdef PATH_MAX | |
4642 | char buf[PATH_MAX]; | |
4643 | #endif | |
4644 | size_t max_len; | |
4645 | ||
4646 | #if defined(__linux__) | |
4647 | { | |
4648 | int len; | |
4649 | len = readlink("/proc/self/exe", buf, sizeof(buf) - 1); | |
4650 | if (len > 0) { | |
4651 | buf[len] = 0; | |
4652 | p = buf; | |
4653 | } | |
4654 | } | |
4655 | #elif defined(__FreeBSD__) | |
4656 | { | |
4657 | int len; | |
4658 | len = readlink("/proc/curproc/file", buf, sizeof(buf) - 1); | |
4659 | if (len > 0) { | |
4660 | buf[len] = 0; | |
4661 | p = buf; | |
4662 | } | |
4663 | } | |
4664 | #endif | |
4665 | /* If we don't have any way of figuring out the actual executable | |
4666 | location then try argv[0]. */ | |
4667 | if (!p) { | |
4668 | #ifdef PATH_MAX | |
4669 | p = buf; | |
4670 | #endif | |
4671 | p = realpath(argv0, p); | |
4672 | if (!p) { | |
4673 | return NULL; | |
4674 | } | |
4675 | } | |
4676 | dir = dirname(p); | |
4677 | dir = dirname(dir); | |
4678 | ||
4679 | max_len = strlen(dir) + | |
4680 | MAX(strlen(SHARE_SUFFIX), strlen(BUILD_SUFFIX)) + 1; | |
4681 | res = qemu_mallocz(max_len); | |
4682 | snprintf(res, max_len, "%s%s", dir, SHARE_SUFFIX); | |
4683 | if (access(res, R_OK)) { | |
4684 | snprintf(res, max_len, "%s%s", dir, BUILD_SUFFIX); | |
4685 | if (access(res, R_OK)) { | |
4686 | qemu_free(res); | |
4687 | res = NULL; | |
4688 | } | |
4689 | } | |
4690 | #ifndef PATH_MAX | |
4691 | free(p); | |
4692 | #endif | |
4693 | return res; | |
4694 | } | |
4695 | #undef SHARE_SUFFIX | |
4696 | #undef BUILD_SUFFIX | |
4697 | #endif | |
4698 | ||
4699 | char *qemu_find_file(int type, const char *name) | |
4700 | { | |
4701 | int len; | |
4702 | const char *subdir; | |
4703 | char *buf; | |
4704 | ||
4705 | /* If name contains path separators then try it as a straight path. */ | |
4706 | if ((strchr(name, '/') || strchr(name, '\\')) | |
4707 | && access(name, R_OK) == 0) { | |
4708 | return strdup(name); | |
4709 | } | |
4710 | switch (type) { | |
4711 | case QEMU_FILE_TYPE_BIOS: | |
4712 | subdir = ""; | |
4713 | break; | |
4714 | case QEMU_FILE_TYPE_KEYMAP: | |
4715 | subdir = "keymaps/"; | |
4716 | break; | |
4717 | default: | |
4718 | abort(); | |
4719 | } | |
4720 | len = strlen(data_dir) + strlen(name) + strlen(subdir) + 2; | |
4721 | buf = qemu_mallocz(len); | |
4722 | snprintf(buf, len, "%s/%s%s", data_dir, subdir, name); | |
4723 | if (access(buf, R_OK)) { | |
4724 | qemu_free(buf); | |
4725 | return NULL; | |
4726 | } | |
4727 | return buf; | |
4728 | } | |
4729 | ||
4730 | static int device_init_func(QemuOpts *opts, void *opaque) | |
4731 | { | |
4732 | DeviceState *dev; | |
4733 | ||
4734 | dev = qdev_device_add(opts); | |
4735 | if (!dev) | |
4736 | return -1; | |
4737 | return 0; | |
4738 | } | |
4739 | ||
4740 | struct device_config { | |
4741 | enum { | |
4742 | DEV_USB, /* -usbdevice */ | |
4743 | DEV_BT, /* -bt */ | |
4744 | } type; | |
4745 | const char *cmdline; | |
4746 | TAILQ_ENTRY(device_config) next; | |
4747 | }; | |
4748 | TAILQ_HEAD(, device_config) device_configs = TAILQ_HEAD_INITIALIZER(device_configs); | |
4749 | ||
4750 | static void add_device_config(int type, const char *cmdline) | |
4751 | { | |
4752 | struct device_config *conf; | |
4753 | ||
4754 | conf = qemu_mallocz(sizeof(*conf)); | |
4755 | conf->type = type; | |
4756 | conf->cmdline = cmdline; | |
4757 | TAILQ_INSERT_TAIL(&device_configs, conf, next); | |
4758 | } | |
4759 | ||
4760 | static int foreach_device_config(int type, int (*func)(const char *cmdline)) | |
4761 | { | |
4762 | struct device_config *conf; | |
4763 | int rc; | |
4764 | ||
4765 | TAILQ_FOREACH(conf, &device_configs, next) { | |
4766 | if (conf->type != type) | |
4767 | continue; | |
4768 | rc = func(conf->cmdline); | |
4769 | if (0 != rc) | |
4770 | return rc; | |
4771 | } | |
4772 | return 0; | |
4773 | } | |
4774 | ||
4775 | int main(int argc, char **argv, char **envp) | |
4776 | { | |
4777 | const char *gdbstub_dev = NULL; | |
4778 | uint32_t boot_devices_bitmap = 0; | |
4779 | int i; | |
4780 | int snapshot, linux_boot, net_boot; | |
4781 | const char *initrd_filename; | |
4782 | const char *kernel_filename, *kernel_cmdline; | |
4783 | char boot_devices[33] = "cad"; /* default to HD->floppy->CD-ROM */ | |
4784 | DisplayState *ds; | |
4785 | DisplayChangeListener *dcl; | |
4786 | int cyls, heads, secs, translation; | |
4787 | const char *net_clients[MAX_NET_CLIENTS]; | |
4788 | int nb_net_clients; | |
4789 | QemuOpts *hda_opts = NULL, *opts; | |
4790 | int optind; | |
4791 | const char *r, *optarg; | |
4792 | CharDriverState *monitor_hd = NULL; | |
4793 | const char *monitor_device; | |
4794 | const char *serial_devices[MAX_SERIAL_PORTS]; | |
4795 | int serial_device_index; | |
4796 | const char *parallel_devices[MAX_PARALLEL_PORTS]; | |
4797 | int parallel_device_index; | |
4798 | const char *virtio_consoles[MAX_VIRTIO_CONSOLES]; | |
4799 | int virtio_console_index; | |
4800 | const char *loadvm = NULL; | |
4801 | QEMUMachine *machine; | |
4802 | const char *cpu_model; | |
4803 | #ifndef _WIN32 | |
4804 | int fds[2]; | |
4805 | #endif | |
4806 | int tb_size; | |
4807 | const char *pid_file = NULL; | |
4808 | const char *incoming = NULL; | |
4809 | #ifndef _WIN32 | |
4810 | int fd = 0; | |
4811 | struct passwd *pwd = NULL; | |
4812 | const char *chroot_dir = NULL; | |
4813 | const char *run_as = NULL; | |
4814 | #endif | |
4815 | CPUState *env; | |
4816 | int show_vnc_port = 0; | |
4817 | ||
4818 | qemu_cache_utils_init(envp); | |
4819 | ||
4820 | LIST_INIT (&vm_change_state_head); | |
4821 | #ifndef _WIN32 | |
4822 | { | |
4823 | struct sigaction act; | |
4824 | sigfillset(&act.sa_mask); | |
4825 | act.sa_flags = 0; | |
4826 | act.sa_handler = SIG_IGN; | |
4827 | sigaction(SIGPIPE, &act, NULL); | |
4828 | } | |
4829 | #else | |
4830 | SetConsoleCtrlHandler(qemu_ctrl_handler, TRUE); | |
4831 | /* Note: cpu_interrupt() is currently not SMP safe, so we force | |
4832 | QEMU to run on a single CPU */ | |
4833 | { | |
4834 | HANDLE h; | |
4835 | DWORD mask, smask; | |
4836 | int i; | |
4837 | h = GetCurrentProcess(); | |
4838 | if (GetProcessAffinityMask(h, &mask, &smask)) { | |
4839 | for(i = 0; i < 32; i++) { | |
4840 | if (mask & (1 << i)) | |
4841 | break; | |
4842 | } | |
4843 | if (i != 32) { | |
4844 | mask = 1 << i; | |
4845 | SetProcessAffinityMask(h, mask); | |
4846 | } | |
4847 | } | |
4848 | } | |
4849 | #endif | |
4850 | ||
4851 | module_call_init(MODULE_INIT_MACHINE); | |
4852 | machine = find_default_machine(); | |
4853 | cpu_model = NULL; | |
4854 | initrd_filename = NULL; | |
4855 | ram_size = 0; | |
4856 | snapshot = 0; | |
4857 | kernel_filename = NULL; | |
4858 | kernel_cmdline = ""; | |
4859 | cyls = heads = secs = 0; | |
4860 | translation = BIOS_ATA_TRANSLATION_AUTO; | |
4861 | monitor_device = "vc:80Cx24C"; | |
4862 | ||
4863 | serial_devices[0] = "vc:80Cx24C"; | |
4864 | for(i = 1; i < MAX_SERIAL_PORTS; i++) | |
4865 | serial_devices[i] = NULL; | |
4866 | serial_device_index = 0; | |
4867 | ||
4868 | parallel_devices[0] = "vc:80Cx24C"; | |
4869 | for(i = 1; i < MAX_PARALLEL_PORTS; i++) | |
4870 | parallel_devices[i] = NULL; | |
4871 | parallel_device_index = 0; | |
4872 | ||
4873 | for(i = 0; i < MAX_VIRTIO_CONSOLES; i++) | |
4874 | virtio_consoles[i] = NULL; | |
4875 | virtio_console_index = 0; | |
4876 | ||
4877 | for (i = 0; i < MAX_NODES; i++) { | |
4878 | node_mem[i] = 0; | |
4879 | node_cpumask[i] = 0; | |
4880 | } | |
4881 | ||
4882 | nb_net_clients = 0; | |
4883 | nb_numa_nodes = 0; | |
4884 | nb_nics = 0; | |
4885 | ||
4886 | tb_size = 0; | |
4887 | autostart= 1; | |
4888 | ||
4889 | register_watchdogs(); | |
4890 | ||
4891 | optind = 1; | |
4892 | for(;;) { | |
4893 | if (optind >= argc) | |
4894 | break; | |
4895 | r = argv[optind]; | |
4896 | if (r[0] != '-') { | |
4897 | hda_opts = drive_add(argv[optind++], HD_ALIAS, 0); | |
4898 | } else { | |
4899 | const QEMUOption *popt; | |
4900 | ||
4901 | optind++; | |
4902 | /* Treat --foo the same as -foo. */ | |
4903 | if (r[1] == '-') | |
4904 | r++; | |
4905 | popt = qemu_options; | |
4906 | for(;;) { | |
4907 | if (!popt->name) { | |
4908 | fprintf(stderr, "%s: invalid option -- '%s'\n", | |
4909 | argv[0], r); | |
4910 | exit(1); | |
4911 | } | |
4912 | if (!strcmp(popt->name, r + 1)) | |
4913 | break; | |
4914 | popt++; | |
4915 | } | |
4916 | if (popt->flags & HAS_ARG) { | |
4917 | if (optind >= argc) { | |
4918 | fprintf(stderr, "%s: option '%s' requires an argument\n", | |
4919 | argv[0], r); | |
4920 | exit(1); | |
4921 | } | |
4922 | optarg = argv[optind++]; | |
4923 | } else { | |
4924 | optarg = NULL; | |
4925 | } | |
4926 | ||
4927 | switch(popt->index) { | |
4928 | case QEMU_OPTION_M: | |
4929 | machine = find_machine(optarg); | |
4930 | if (!machine) { | |
4931 | QEMUMachine *m; | |
4932 | printf("Supported machines are:\n"); | |
4933 | for(m = first_machine; m != NULL; m = m->next) { | |
4934 | if (m->alias) | |
4935 | printf("%-10s %s (alias of %s)\n", | |
4936 | m->alias, m->desc, m->name); | |
4937 | printf("%-10s %s%s\n", | |
4938 | m->name, m->desc, | |
4939 | m->is_default ? " (default)" : ""); | |
4940 | } | |
4941 | exit(*optarg != '?'); | |
4942 | } | |
4943 | break; | |
4944 | case QEMU_OPTION_cpu: | |
4945 | /* hw initialization will check this */ | |
4946 | if (*optarg == '?') { | |
4947 | /* XXX: implement xxx_cpu_list for targets that still miss it */ | |
4948 | #if defined(cpu_list) | |
4949 | cpu_list(stdout, &fprintf); | |
4950 | #endif | |
4951 | exit(0); | |
4952 | } else { | |
4953 | cpu_model = optarg; | |
4954 | } | |
4955 | break; | |
4956 | case QEMU_OPTION_initrd: | |
4957 | initrd_filename = optarg; | |
4958 | break; | |
4959 | case QEMU_OPTION_hda: | |
4960 | if (cyls == 0) | |
4961 | hda_opts = drive_add(optarg, HD_ALIAS, 0); | |
4962 | else | |
4963 | hda_opts = drive_add(optarg, HD_ALIAS | |
4964 | ",cyls=%d,heads=%d,secs=%d%s", | |
4965 | 0, cyls, heads, secs, | |
4966 | translation == BIOS_ATA_TRANSLATION_LBA ? | |
4967 | ",trans=lba" : | |
4968 | translation == BIOS_ATA_TRANSLATION_NONE ? | |
4969 | ",trans=none" : ""); | |
4970 | break; | |
4971 | case QEMU_OPTION_hdb: | |
4972 | case QEMU_OPTION_hdc: | |
4973 | case QEMU_OPTION_hdd: | |
4974 | drive_add(optarg, HD_ALIAS, popt->index - QEMU_OPTION_hda); | |
4975 | break; | |
4976 | case QEMU_OPTION_drive: | |
4977 | drive_add(NULL, "%s", optarg); | |
4978 | break; | |
4979 | case QEMU_OPTION_set: | |
4980 | if (qemu_set_option(optarg) != 0) | |
4981 | exit(1); | |
4982 | break; | |
4983 | case QEMU_OPTION_mtdblock: | |
4984 | drive_add(optarg, MTD_ALIAS); | |
4985 | break; | |
4986 | case QEMU_OPTION_sd: | |
4987 | drive_add(optarg, SD_ALIAS); | |
4988 | break; | |
4989 | case QEMU_OPTION_pflash: | |
4990 | drive_add(optarg, PFLASH_ALIAS); | |
4991 | break; | |
4992 | case QEMU_OPTION_snapshot: | |
4993 | snapshot = 1; | |
4994 | break; | |
4995 | case QEMU_OPTION_hdachs: | |
4996 | { | |
4997 | const char *p; | |
4998 | p = optarg; | |
4999 | cyls = strtol(p, (char **)&p, 0); | |
5000 | if (cyls < 1 || cyls > 16383) | |
5001 | goto chs_fail; | |
5002 | if (*p != ',') | |
5003 | goto chs_fail; | |
5004 | p++; | |
5005 | heads = strtol(p, (char **)&p, 0); | |
5006 | if (heads < 1 || heads > 16) | |
5007 | goto chs_fail; | |
5008 | if (*p != ',') | |
5009 | goto chs_fail; | |
5010 | p++; | |
5011 | secs = strtol(p, (char **)&p, 0); | |
5012 | if (secs < 1 || secs > 63) | |
5013 | goto chs_fail; | |
5014 | if (*p == ',') { | |
5015 | p++; | |
5016 | if (!strcmp(p, "none")) | |
5017 | translation = BIOS_ATA_TRANSLATION_NONE; | |
5018 | else if (!strcmp(p, "lba")) | |
5019 | translation = BIOS_ATA_TRANSLATION_LBA; | |
5020 | else if (!strcmp(p, "auto")) | |
5021 | translation = BIOS_ATA_TRANSLATION_AUTO; | |
5022 | else | |
5023 | goto chs_fail; | |
5024 | } else if (*p != '\0') { | |
5025 | chs_fail: | |
5026 | fprintf(stderr, "qemu: invalid physical CHS format\n"); | |
5027 | exit(1); | |
5028 | } | |
5029 | if (hda_opts != NULL) { | |
5030 | char num[16]; | |
5031 | snprintf(num, sizeof(num), "%d", cyls); | |
5032 | qemu_opt_set(hda_opts, "cyls", num); | |
5033 | snprintf(num, sizeof(num), "%d", heads); | |
5034 | qemu_opt_set(hda_opts, "heads", num); | |
5035 | snprintf(num, sizeof(num), "%d", secs); | |
5036 | qemu_opt_set(hda_opts, "secs", num); | |
5037 | if (translation == BIOS_ATA_TRANSLATION_LBA) | |
5038 | qemu_opt_set(hda_opts, "trans", "lba"); | |
5039 | if (translation == BIOS_ATA_TRANSLATION_NONE) | |
5040 | qemu_opt_set(hda_opts, "trans", "none"); | |
5041 | } | |
5042 | } | |
5043 | break; | |
5044 | case QEMU_OPTION_numa: | |
5045 | if (nb_numa_nodes >= MAX_NODES) { | |
5046 | fprintf(stderr, "qemu: too many NUMA nodes\n"); | |
5047 | exit(1); | |
5048 | } | |
5049 | numa_add(optarg); | |
5050 | break; | |
5051 | case QEMU_OPTION_nographic: | |
5052 | display_type = DT_NOGRAPHIC; | |
5053 | break; | |
5054 | #ifdef CONFIG_CURSES | |
5055 | case QEMU_OPTION_curses: | |
5056 | display_type = DT_CURSES; | |
5057 | break; | |
5058 | #endif | |
5059 | case QEMU_OPTION_portrait: | |
5060 | graphic_rotate = 1; | |
5061 | break; | |
5062 | case QEMU_OPTION_kernel: | |
5063 | kernel_filename = optarg; | |
5064 | break; | |
5065 | case QEMU_OPTION_append: | |
5066 | kernel_cmdline = optarg; | |
5067 | break; | |
5068 | case QEMU_OPTION_cdrom: | |
5069 | drive_add(optarg, CDROM_ALIAS); | |
5070 | break; | |
5071 | case QEMU_OPTION_boot: | |
5072 | { | |
5073 | static const char * const params[] = { | |
5074 | "order", "once", "menu", NULL | |
5075 | }; | |
5076 | char buf[sizeof(boot_devices)]; | |
5077 | char *standard_boot_devices; | |
5078 | int legacy = 0; | |
5079 | ||
5080 | if (!strchr(optarg, '=')) { | |
5081 | legacy = 1; | |
5082 | pstrcpy(buf, sizeof(buf), optarg); | |
5083 | } else if (check_params(buf, sizeof(buf), params, optarg) < 0) { | |
5084 | fprintf(stderr, | |
5085 | "qemu: unknown boot parameter '%s' in '%s'\n", | |
5086 | buf, optarg); | |
5087 | exit(1); | |
5088 | } | |
5089 | ||
5090 | if (legacy || | |
5091 | get_param_value(buf, sizeof(buf), "order", optarg)) { | |
5092 | boot_devices_bitmap = parse_bootdevices(buf); | |
5093 | pstrcpy(boot_devices, sizeof(boot_devices), buf); | |
5094 | } | |
5095 | if (!legacy) { | |
5096 | if (get_param_value(buf, sizeof(buf), | |
5097 | "once", optarg)) { | |
5098 | boot_devices_bitmap |= parse_bootdevices(buf); | |
5099 | standard_boot_devices = qemu_strdup(boot_devices); | |
5100 | pstrcpy(boot_devices, sizeof(boot_devices), buf); | |
5101 | qemu_register_reset(restore_boot_devices, | |
5102 | standard_boot_devices); | |
5103 | } | |
5104 | if (get_param_value(buf, sizeof(buf), | |
5105 | "menu", optarg)) { | |
5106 | if (!strcmp(buf, "on")) { | |
5107 | boot_menu = 1; | |
5108 | } else if (!strcmp(buf, "off")) { | |
5109 | boot_menu = 0; | |
5110 | } else { | |
5111 | fprintf(stderr, | |
5112 | "qemu: invalid option value '%s'\n", | |
5113 | buf); | |
5114 | exit(1); | |
5115 | } | |
5116 | } | |
5117 | } | |
5118 | } | |
5119 | break; | |
5120 | case QEMU_OPTION_fda: | |
5121 | case QEMU_OPTION_fdb: | |
5122 | drive_add(optarg, FD_ALIAS, popt->index - QEMU_OPTION_fda); | |
5123 | break; | |
5124 | #ifdef TARGET_I386 | |
5125 | case QEMU_OPTION_no_fd_bootchk: | |
5126 | fd_bootchk = 0; | |
5127 | break; | |
5128 | #endif | |
5129 | case QEMU_OPTION_net: | |
5130 | if (nb_net_clients >= MAX_NET_CLIENTS) { | |
5131 | fprintf(stderr, "qemu: too many network clients\n"); | |
5132 | exit(1); | |
5133 | } | |
5134 | net_clients[nb_net_clients] = optarg; | |
5135 | nb_net_clients++; | |
5136 | break; | |
5137 | #ifdef CONFIG_SLIRP | |
5138 | case QEMU_OPTION_tftp: | |
5139 | legacy_tftp_prefix = optarg; | |
5140 | break; | |
5141 | case QEMU_OPTION_bootp: | |
5142 | legacy_bootp_filename = optarg; | |
5143 | break; | |
5144 | #ifndef _WIN32 | |
5145 | case QEMU_OPTION_smb: | |
5146 | net_slirp_smb(optarg); | |
5147 | break; | |
5148 | #endif | |
5149 | case QEMU_OPTION_redir: | |
5150 | net_slirp_redir(optarg); | |
5151 | break; | |
5152 | #endif | |
5153 | case QEMU_OPTION_bt: | |
5154 | add_device_config(DEV_BT, optarg); | |
5155 | break; | |
5156 | #ifdef HAS_AUDIO | |
5157 | case QEMU_OPTION_audio_help: | |
5158 | AUD_help (); | |
5159 | exit (0); | |
5160 | break; | |
5161 | case QEMU_OPTION_soundhw: | |
5162 | select_soundhw (optarg); | |
5163 | break; | |
5164 | #endif | |
5165 | case QEMU_OPTION_h: | |
5166 | help(0); | |
5167 | break; | |
5168 | case QEMU_OPTION_version: | |
5169 | version(); | |
5170 | exit(0); | |
5171 | break; | |
5172 | case QEMU_OPTION_m: { | |
5173 | uint64_t value; | |
5174 | char *ptr; | |
5175 | ||
5176 | value = strtoul(optarg, &ptr, 10); | |
5177 | switch (*ptr) { | |
5178 | case 0: case 'M': case 'm': | |
5179 | value <<= 20; | |
5180 | break; | |
5181 | case 'G': case 'g': | |
5182 | value <<= 30; | |
5183 | break; | |
5184 | default: | |
5185 | fprintf(stderr, "qemu: invalid ram size: %s\n", optarg); | |
5186 | exit(1); | |
5187 | } | |
5188 | ||
5189 | /* On 32-bit hosts, QEMU is limited by virtual address space */ | |
5190 | if (value > (2047 << 20) | |
5191 | #ifndef CONFIG_KQEMU | |
5192 | && HOST_LONG_BITS == 32 | |
5193 | #endif | |
5194 | ) { | |
5195 | fprintf(stderr, "qemu: at most 2047 MB RAM can be simulated\n"); | |
5196 | exit(1); | |
5197 | } | |
5198 | if (value != (uint64_t)(ram_addr_t)value) { | |
5199 | fprintf(stderr, "qemu: ram size too large\n"); | |
5200 | exit(1); | |
5201 | } | |
5202 | ram_size = value; | |
5203 | break; | |
5204 | } | |
5205 | case QEMU_OPTION_d: | |
5206 | { | |
5207 | int mask; | |
5208 | const CPULogItem *item; | |
5209 | ||
5210 | mask = cpu_str_to_log_mask(optarg); | |
5211 | if (!mask) { | |
5212 | printf("Log items (comma separated):\n"); | |
5213 | for(item = cpu_log_items; item->mask != 0; item++) { | |
5214 | printf("%-10s %s\n", item->name, item->help); | |
5215 | } | |
5216 | exit(1); | |
5217 | } | |
5218 | cpu_set_log(mask); | |
5219 | } | |
5220 | break; | |
5221 | case QEMU_OPTION_s: | |
5222 | gdbstub_dev = "tcp::" DEFAULT_GDBSTUB_PORT; | |
5223 | break; | |
5224 | case QEMU_OPTION_gdb: | |
5225 | gdbstub_dev = optarg; | |
5226 | break; | |
5227 | case QEMU_OPTION_L: | |
5228 | data_dir = optarg; | |
5229 | break; | |
5230 | case QEMU_OPTION_bios: | |
5231 | bios_name = optarg; | |
5232 | break; | |
5233 | case QEMU_OPTION_singlestep: | |
5234 | singlestep = 1; | |
5235 | break; | |
5236 | case QEMU_OPTION_S: | |
5237 | autostart = 0; | |
5238 | break; | |
5239 | #ifndef _WIN32 | |
5240 | case QEMU_OPTION_k: | |
5241 | keyboard_layout = optarg; | |
5242 | break; | |
5243 | #endif | |
5244 | case QEMU_OPTION_localtime: | |
5245 | rtc_utc = 0; | |
5246 | break; | |
5247 | case QEMU_OPTION_vga: | |
5248 | select_vgahw (optarg); | |
5249 | break; | |
5250 | #if defined(TARGET_PPC) || defined(TARGET_SPARC) | |
5251 | case QEMU_OPTION_g: | |
5252 | { | |
5253 | const char *p; | |
5254 | int w, h, depth; | |
5255 | p = optarg; | |
5256 | w = strtol(p, (char **)&p, 10); | |
5257 | if (w <= 0) { | |
5258 | graphic_error: | |
5259 | fprintf(stderr, "qemu: invalid resolution or depth\n"); | |
5260 | exit(1); | |
5261 | } | |
5262 | if (*p != 'x') | |
5263 | goto graphic_error; | |
5264 | p++; | |
5265 | h = strtol(p, (char **)&p, 10); | |
5266 | if (h <= 0) | |
5267 | goto graphic_error; | |
5268 | if (*p == 'x') { | |
5269 | p++; | |
5270 | depth = strtol(p, (char **)&p, 10); | |
5271 | if (depth != 8 && depth != 15 && depth != 16 && | |
5272 | depth != 24 && depth != 32) | |
5273 | goto graphic_error; | |
5274 | } else if (*p == '\0') { | |
5275 | depth = graphic_depth; | |
5276 | } else { | |
5277 | goto graphic_error; | |
5278 | } | |
5279 | ||
5280 | graphic_width = w; | |
5281 | graphic_height = h; | |
5282 | graphic_depth = depth; | |
5283 | } | |
5284 | break; | |
5285 | #endif | |
5286 | case QEMU_OPTION_echr: | |
5287 | { | |
5288 | char *r; | |
5289 | term_escape_char = strtol(optarg, &r, 0); | |
5290 | if (r == optarg) | |
5291 | printf("Bad argument to echr\n"); | |
5292 | break; | |
5293 | } | |
5294 | case QEMU_OPTION_monitor: | |
5295 | monitor_device = optarg; | |
5296 | break; | |
5297 | case QEMU_OPTION_serial: | |
5298 | if (serial_device_index >= MAX_SERIAL_PORTS) { | |
5299 | fprintf(stderr, "qemu: too many serial ports\n"); | |
5300 | exit(1); | |
5301 | } | |
5302 | serial_devices[serial_device_index] = optarg; | |
5303 | serial_device_index++; | |
5304 | break; | |
5305 | case QEMU_OPTION_watchdog: | |
5306 | i = select_watchdog(optarg); | |
5307 | if (i > 0) | |
5308 | exit (i == 1 ? 1 : 0); | |
5309 | break; | |
5310 | case QEMU_OPTION_watchdog_action: | |
5311 | if (select_watchdog_action(optarg) == -1) { | |
5312 | fprintf(stderr, "Unknown -watchdog-action parameter\n"); | |
5313 | exit(1); | |
5314 | } | |
5315 | break; | |
5316 | case QEMU_OPTION_virtiocon: | |
5317 | if (virtio_console_index >= MAX_VIRTIO_CONSOLES) { | |
5318 | fprintf(stderr, "qemu: too many virtio consoles\n"); | |
5319 | exit(1); | |
5320 | } | |
5321 | virtio_consoles[virtio_console_index] = optarg; | |
5322 | virtio_console_index++; | |
5323 | break; | |
5324 | case QEMU_OPTION_parallel: | |
5325 | if (parallel_device_index >= MAX_PARALLEL_PORTS) { | |
5326 | fprintf(stderr, "qemu: too many parallel ports\n"); | |
5327 | exit(1); | |
5328 | } | |
5329 | parallel_devices[parallel_device_index] = optarg; | |
5330 | parallel_device_index++; | |
5331 | break; | |
5332 | case QEMU_OPTION_loadvm: | |
5333 | loadvm = optarg; | |
5334 | break; | |
5335 | case QEMU_OPTION_full_screen: | |
5336 | full_screen = 1; | |
5337 | break; | |
5338 | #ifdef CONFIG_SDL | |
5339 | case QEMU_OPTION_no_frame: | |
5340 | no_frame = 1; | |
5341 | break; | |
5342 | case QEMU_OPTION_alt_grab: | |
5343 | alt_grab = 1; | |
5344 | break; | |
5345 | case QEMU_OPTION_no_quit: | |
5346 | no_quit = 1; | |
5347 | break; | |
5348 | case QEMU_OPTION_sdl: | |
5349 | display_type = DT_SDL; | |
5350 | break; | |
5351 | #endif | |
5352 | case QEMU_OPTION_pidfile: | |
5353 | pid_file = optarg; | |
5354 | break; | |
5355 | #ifdef TARGET_I386 | |
5356 | case QEMU_OPTION_win2k_hack: | |
5357 | win2k_install_hack = 1; | |
5358 | break; | |
5359 | case QEMU_OPTION_rtc_td_hack: | |
5360 | rtc_td_hack = 1; | |
5361 | break; | |
5362 | case QEMU_OPTION_acpitable: | |
5363 | if(acpi_table_add(optarg) < 0) { | |
5364 | fprintf(stderr, "Wrong acpi table provided\n"); | |
5365 | exit(1); | |
5366 | } | |
5367 | break; | |
5368 | case QEMU_OPTION_smbios: | |
5369 | if(smbios_entry_add(optarg) < 0) { | |
5370 | fprintf(stderr, "Wrong smbios provided\n"); | |
5371 | exit(1); | |
5372 | } | |
5373 | break; | |
5374 | #endif | |
5375 | #ifdef CONFIG_KQEMU | |
5376 | case QEMU_OPTION_enable_kqemu: | |
5377 | kqemu_allowed = 1; | |
5378 | break; | |
5379 | case QEMU_OPTION_kernel_kqemu: | |
5380 | kqemu_allowed = 2; | |
5381 | break; | |
5382 | #endif | |
5383 | #ifdef CONFIG_KVM | |
5384 | case QEMU_OPTION_enable_kvm: | |
5385 | kvm_allowed = 1; | |
5386 | #ifdef CONFIG_KQEMU | |
5387 | kqemu_allowed = 0; | |
5388 | #endif | |
5389 | break; | |
5390 | #endif | |
5391 | case QEMU_OPTION_usb: | |
5392 | usb_enabled = 1; | |
5393 | break; | |
5394 | case QEMU_OPTION_usbdevice: | |
5395 | usb_enabled = 1; | |
5396 | add_device_config(DEV_USB, optarg); | |
5397 | break; | |
5398 | case QEMU_OPTION_device: | |
5399 | opts = qemu_opts_parse(&qemu_device_opts, optarg, "driver"); | |
5400 | if (!opts) { | |
5401 | fprintf(stderr, "parse error: %s\n", optarg); | |
5402 | exit(1); | |
5403 | } | |
5404 | break; | |
5405 | case QEMU_OPTION_smp: | |
5406 | { | |
5407 | char *p; | |
5408 | char option[128]; | |
5409 | smp_cpus = strtol(optarg, &p, 10); | |
5410 | if (smp_cpus < 1) { | |
5411 | fprintf(stderr, "Invalid number of CPUs\n"); | |
5412 | exit(1); | |
5413 | } | |
5414 | if (*p++ != ',') | |
5415 | break; | |
5416 | if (get_param_value(option, 128, "maxcpus", p)) | |
5417 | max_cpus = strtol(option, NULL, 0); | |
5418 | if (max_cpus < smp_cpus) { | |
5419 | fprintf(stderr, "maxcpus must be equal to or greater than " | |
5420 | "smp\n"); | |
5421 | exit(1); | |
5422 | } | |
5423 | if (max_cpus > 255) { | |
5424 | fprintf(stderr, "Unsupported number of maxcpus\n"); | |
5425 | exit(1); | |
5426 | } | |
5427 | break; | |
5428 | } | |
5429 | case QEMU_OPTION_vnc: | |
5430 | display_type = DT_VNC; | |
5431 | vnc_display = optarg; | |
5432 | break; | |
5433 | #ifdef TARGET_I386 | |
5434 | case QEMU_OPTION_no_acpi: | |
5435 | acpi_enabled = 0; | |
5436 | break; | |
5437 | case QEMU_OPTION_no_hpet: | |
5438 | no_hpet = 1; | |
5439 | break; | |
5440 | case QEMU_OPTION_balloon: | |
5441 | if (balloon_parse(optarg) < 0) { | |
5442 | fprintf(stderr, "Unknown -balloon argument %s\n", optarg); | |
5443 | exit(1); | |
5444 | } | |
5445 | break; | |
5446 | #endif | |
5447 | case QEMU_OPTION_no_reboot: | |
5448 | no_reboot = 1; | |
5449 | break; | |
5450 | case QEMU_OPTION_no_shutdown: | |
5451 | no_shutdown = 1; | |
5452 | break; | |
5453 | case QEMU_OPTION_show_cursor: | |
5454 | cursor_hide = 0; | |
5455 | break; | |
5456 | case QEMU_OPTION_uuid: | |
5457 | if(qemu_uuid_parse(optarg, qemu_uuid) < 0) { | |
5458 | fprintf(stderr, "Fail to parse UUID string." | |
5459 | " Wrong format.\n"); | |
5460 | exit(1); | |
5461 | } | |
5462 | break; | |
5463 | #ifndef _WIN32 | |
5464 | case QEMU_OPTION_daemonize: | |
5465 | daemonize = 1; | |
5466 | break; | |
5467 | #endif | |
5468 | case QEMU_OPTION_option_rom: | |
5469 | if (nb_option_roms >= MAX_OPTION_ROMS) { | |
5470 | fprintf(stderr, "Too many option ROMs\n"); | |
5471 | exit(1); | |
5472 | } | |
5473 | option_rom[nb_option_roms] = optarg; | |
5474 | nb_option_roms++; | |
5475 | break; | |
5476 | #if defined(TARGET_ARM) || defined(TARGET_M68K) | |
5477 | case QEMU_OPTION_semihosting: | |
5478 | semihosting_enabled = 1; | |
5479 | break; | |
5480 | #endif | |
5481 | case QEMU_OPTION_name: | |
5482 | qemu_name = qemu_strdup(optarg); | |
5483 | { | |
5484 | char *p = strchr(qemu_name, ','); | |
5485 | if (p != NULL) { | |
5486 | *p++ = 0; | |
5487 | if (strncmp(p, "process=", 8)) { | |
5488 | fprintf(stderr, "Unknown subargument %s to -name", p); | |
5489 | exit(1); | |
5490 | } | |
5491 | p += 8; | |
5492 | set_proc_name(p); | |
5493 | } | |
5494 | } | |
5495 | break; | |
5496 | #if defined(TARGET_SPARC) || defined(TARGET_PPC) | |
5497 | case QEMU_OPTION_prom_env: | |
5498 | if (nb_prom_envs >= MAX_PROM_ENVS) { | |
5499 | fprintf(stderr, "Too many prom variables\n"); | |
5500 | exit(1); | |
5501 | } | |
5502 | prom_envs[nb_prom_envs] = optarg; | |
5503 | nb_prom_envs++; | |
5504 | break; | |
5505 | #endif | |
5506 | #ifdef TARGET_ARM | |
5507 | case QEMU_OPTION_old_param: | |
5508 | old_param = 1; | |
5509 | break; | |
5510 | #endif | |
5511 | case QEMU_OPTION_clock: | |
5512 | configure_alarms(optarg); | |
5513 | break; | |
5514 | case QEMU_OPTION_startdate: | |
5515 | { | |
5516 | struct tm tm; | |
5517 | time_t rtc_start_date; | |
5518 | if (!strcmp(optarg, "now")) { | |
5519 | rtc_date_offset = -1; | |
5520 | } else { | |
5521 | if (sscanf(optarg, "%d-%d-%dT%d:%d:%d", | |
5522 | &tm.tm_year, | |
5523 | &tm.tm_mon, | |
5524 | &tm.tm_mday, | |
5525 | &tm.tm_hour, | |
5526 | &tm.tm_min, | |
5527 | &tm.tm_sec) == 6) { | |
5528 | /* OK */ | |
5529 | } else if (sscanf(optarg, "%d-%d-%d", | |
5530 | &tm.tm_year, | |
5531 | &tm.tm_mon, | |
5532 | &tm.tm_mday) == 3) { | |
5533 | tm.tm_hour = 0; | |
5534 | tm.tm_min = 0; | |
5535 | tm.tm_sec = 0; | |
5536 | } else { | |
5537 | goto date_fail; | |
5538 | } | |
5539 | tm.tm_year -= 1900; | |
5540 | tm.tm_mon--; | |
5541 | rtc_start_date = mktimegm(&tm); | |
5542 | if (rtc_start_date == -1) { | |
5543 | date_fail: | |
5544 | fprintf(stderr, "Invalid date format. Valid format are:\n" | |
5545 | "'now' or '2006-06-17T16:01:21' or '2006-06-17'\n"); | |
5546 | exit(1); | |
5547 | } | |
5548 | rtc_date_offset = time(NULL) - rtc_start_date; | |
5549 | } | |
5550 | } | |
5551 | break; | |
5552 | case QEMU_OPTION_tb_size: | |
5553 | tb_size = strtol(optarg, NULL, 0); | |
5554 | if (tb_size < 0) | |
5555 | tb_size = 0; | |
5556 | break; | |
5557 | case QEMU_OPTION_icount: | |
5558 | use_icount = 1; | |
5559 | if (strcmp(optarg, "auto") == 0) { | |
5560 | icount_time_shift = -1; | |
5561 | } else { | |
5562 | icount_time_shift = strtol(optarg, NULL, 0); | |
5563 | } | |
5564 | break; | |
5565 | case QEMU_OPTION_incoming: | |
5566 | incoming = optarg; | |
5567 | break; | |
5568 | #ifndef _WIN32 | |
5569 | case QEMU_OPTION_chroot: | |
5570 | chroot_dir = optarg; | |
5571 | break; | |
5572 | case QEMU_OPTION_runas: | |
5573 | run_as = optarg; | |
5574 | break; | |
5575 | #endif | |
5576 | #ifdef CONFIG_XEN | |
5577 | case QEMU_OPTION_xen_domid: | |
5578 | xen_domid = atoi(optarg); | |
5579 | break; | |
5580 | case QEMU_OPTION_xen_create: | |
5581 | xen_mode = XEN_CREATE; | |
5582 | break; | |
5583 | case QEMU_OPTION_xen_attach: | |
5584 | xen_mode = XEN_ATTACH; | |
5585 | break; | |
5586 | #endif | |
5587 | } | |
5588 | } | |
5589 | } | |
5590 | ||
5591 | /* If no data_dir is specified then try to find it relative to the | |
5592 | executable path. */ | |
5593 | if (!data_dir) { | |
5594 | data_dir = find_datadir(argv[0]); | |
5595 | } | |
5596 | /* If all else fails use the install patch specified when building. */ | |
5597 | if (!data_dir) { | |
5598 | data_dir = CONFIG_QEMU_SHAREDIR; | |
5599 | } | |
5600 | ||
5601 | #if defined(CONFIG_KVM) && defined(CONFIG_KQEMU) | |
5602 | if (kvm_allowed && kqemu_allowed) { | |
5603 | fprintf(stderr, | |
5604 | "You can not enable both KVM and kqemu at the same time\n"); | |
5605 | exit(1); | |
5606 | } | |
5607 | #endif | |
5608 | ||
5609 | /* | |
5610 | * Default to max_cpus = smp_cpus, in case the user doesn't | |
5611 | * specify a max_cpus value. | |
5612 | */ | |
5613 | if (!max_cpus) | |
5614 | max_cpus = smp_cpus; | |
5615 | ||
5616 | machine->max_cpus = machine->max_cpus ?: 1; /* Default to UP */ | |
5617 | if (smp_cpus > machine->max_cpus) { | |
5618 | fprintf(stderr, "Number of SMP cpus requested (%d), exceeds max cpus " | |
5619 | "supported by machine `%s' (%d)\n", smp_cpus, machine->name, | |
5620 | machine->max_cpus); | |
5621 | exit(1); | |
5622 | } | |
5623 | ||
5624 | if (display_type == DT_NOGRAPHIC) { | |
5625 | if (serial_device_index == 0) | |
5626 | serial_devices[0] = "stdio"; | |
5627 | if (parallel_device_index == 0) | |
5628 | parallel_devices[0] = "null"; | |
5629 | if (strncmp(monitor_device, "vc", 2) == 0) | |
5630 | monitor_device = "stdio"; | |
5631 | } | |
5632 | ||
5633 | #ifndef _WIN32 | |
5634 | if (daemonize) { | |
5635 | pid_t pid; | |
5636 | ||
5637 | if (pipe(fds) == -1) | |
5638 | exit(1); | |
5639 | ||
5640 | pid = fork(); | |
5641 | if (pid > 0) { | |
5642 | uint8_t status; | |
5643 | ssize_t len; | |
5644 | ||
5645 | close(fds[1]); | |
5646 | ||
5647 | again: | |
5648 | len = read(fds[0], &status, 1); | |
5649 | if (len == -1 && (errno == EINTR)) | |
5650 | goto again; | |
5651 | ||
5652 | if (len != 1) | |
5653 | exit(1); | |
5654 | else if (status == 1) { | |
5655 | fprintf(stderr, "Could not acquire pidfile\n"); | |
5656 | exit(1); | |
5657 | } else | |
5658 | exit(0); | |
5659 | } else if (pid < 0) | |
5660 | exit(1); | |
5661 | ||
5662 | setsid(); | |
5663 | ||
5664 | pid = fork(); | |
5665 | if (pid > 0) | |
5666 | exit(0); | |
5667 | else if (pid < 0) | |
5668 | exit(1); | |
5669 | ||
5670 | umask(027); | |
5671 | ||
5672 | signal(SIGTSTP, SIG_IGN); | |
5673 | signal(SIGTTOU, SIG_IGN); | |
5674 | signal(SIGTTIN, SIG_IGN); | |
5675 | } | |
5676 | ||
5677 | if (pid_file && qemu_create_pidfile(pid_file) != 0) { | |
5678 | if (daemonize) { | |
5679 | uint8_t status = 1; | |
5680 | write(fds[1], &status, 1); | |
5681 | } else | |
5682 | fprintf(stderr, "Could not acquire pid file\n"); | |
5683 | exit(1); | |
5684 | } | |
5685 | #endif | |
5686 | ||
5687 | #ifdef CONFIG_KQEMU | |
5688 | if (smp_cpus > 1) | |
5689 | kqemu_allowed = 0; | |
5690 | #endif | |
5691 | if (qemu_init_main_loop()) { | |
5692 | fprintf(stderr, "qemu_init_main_loop failed\n"); | |
5693 | exit(1); | |
5694 | } | |
5695 | linux_boot = (kernel_filename != NULL); | |
5696 | ||
5697 | if (!linux_boot && *kernel_cmdline != '\0') { | |
5698 | fprintf(stderr, "-append only allowed with -kernel option\n"); | |
5699 | exit(1); | |
5700 | } | |
5701 | ||
5702 | if (!linux_boot && initrd_filename != NULL) { | |
5703 | fprintf(stderr, "-initrd only allowed with -kernel option\n"); | |
5704 | exit(1); | |
5705 | } | |
5706 | ||
5707 | #ifndef _WIN32 | |
5708 | /* Win32 doesn't support line-buffering and requires size >= 2 */ | |
5709 | setvbuf(stdout, NULL, _IOLBF, 0); | |
5710 | #endif | |
5711 | ||
5712 | init_timers(); | |
5713 | if (init_timer_alarm() < 0) { | |
5714 | fprintf(stderr, "could not initialize alarm timer\n"); | |
5715 | exit(1); | |
5716 | } | |
5717 | if (use_icount && icount_time_shift < 0) { | |
5718 | use_icount = 2; | |
5719 | /* 125MIPS seems a reasonable initial guess at the guest speed. | |
5720 | It will be corrected fairly quickly anyway. */ | |
5721 | icount_time_shift = 3; | |
5722 | init_icount_adjust(); | |
5723 | } | |
5724 | ||
5725 | #ifdef _WIN32 | |
5726 | socket_init(); | |
5727 | #endif | |
5728 | ||
5729 | /* init network clients */ | |
5730 | if (nb_net_clients == 0) { | |
5731 | /* if no clients, we use a default config */ | |
5732 | net_clients[nb_net_clients++] = "nic"; | |
5733 | #ifdef CONFIG_SLIRP | |
5734 | net_clients[nb_net_clients++] = "user"; | |
5735 | #endif | |
5736 | } | |
5737 | ||
5738 | for(i = 0;i < nb_net_clients; i++) { | |
5739 | if (net_client_parse(net_clients[i]) < 0) | |
5740 | exit(1); | |
5741 | } | |
5742 | ||
5743 | net_boot = (boot_devices_bitmap >> ('n' - 'a')) & 0xF; | |
5744 | net_set_boot_mask(net_boot); | |
5745 | ||
5746 | net_client_check(); | |
5747 | ||
5748 | /* init the bluetooth world */ | |
5749 | if (foreach_device_config(DEV_BT, bt_parse)) | |
5750 | exit(1); | |
5751 | ||
5752 | /* init the memory */ | |
5753 | if (ram_size == 0) | |
5754 | ram_size = DEFAULT_RAM_SIZE * 1024 * 1024; | |
5755 | ||
5756 | #ifdef CONFIG_KQEMU | |
5757 | /* FIXME: This is a nasty hack because kqemu can't cope with dynamic | |
5758 | guest ram allocation. It needs to go away. */ | |
5759 | if (kqemu_allowed) { | |
5760 | kqemu_phys_ram_size = ram_size + 8 * 1024 * 1024 + 4 * 1024 * 1024; | |
5761 | kqemu_phys_ram_base = qemu_vmalloc(kqemu_phys_ram_size); | |
5762 | if (!kqemu_phys_ram_base) { | |
5763 | fprintf(stderr, "Could not allocate physical memory\n"); | |
5764 | exit(1); | |
5765 | } | |
5766 | } | |
5767 | #endif | |
5768 | ||
5769 | /* init the dynamic translator */ | |
5770 | cpu_exec_init_all(tb_size * 1024 * 1024); | |
5771 | ||
5772 | bdrv_init(); | |
5773 | ||
5774 | /* we always create the cdrom drive, even if no disk is there */ | |
5775 | drive_add(NULL, CDROM_ALIAS); | |
5776 | ||
5777 | /* we always create at least one floppy */ | |
5778 | drive_add(NULL, FD_ALIAS, 0); | |
5779 | ||
5780 | /* we always create one sd slot, even if no card is in it */ | |
5781 | drive_add(NULL, SD_ALIAS); | |
5782 | ||
5783 | /* open the virtual block devices */ | |
5784 | if (snapshot) | |
5785 | qemu_opts_foreach(&qemu_drive_opts, drive_enable_snapshot, NULL, 0); | |
5786 | if (qemu_opts_foreach(&qemu_drive_opts, drive_init_func, machine, 1) != 0) | |
5787 | exit(1); | |
5788 | ||
5789 | register_savevm("timer", 0, 2, timer_save, timer_load, NULL); | |
5790 | register_savevm_live("ram", 0, 3, ram_save_live, NULL, ram_load, NULL); | |
5791 | ||
5792 | #ifndef _WIN32 | |
5793 | /* must be after terminal init, SDL library changes signal handlers */ | |
5794 | sighandler_setup(); | |
5795 | #endif | |
5796 | ||
5797 | /* Maintain compatibility with multiple stdio monitors */ | |
5798 | if (!strcmp(monitor_device,"stdio")) { | |
5799 | for (i = 0; i < MAX_SERIAL_PORTS; i++) { | |
5800 | const char *devname = serial_devices[i]; | |
5801 | if (devname && !strcmp(devname,"mon:stdio")) { | |
5802 | monitor_device = NULL; | |
5803 | break; | |
5804 | } else if (devname && !strcmp(devname,"stdio")) { | |
5805 | monitor_device = NULL; | |
5806 | serial_devices[i] = "mon:stdio"; | |
5807 | break; | |
5808 | } | |
5809 | } | |
5810 | } | |
5811 | ||
5812 | if (nb_numa_nodes > 0) { | |
5813 | int i; | |
5814 | ||
5815 | if (nb_numa_nodes > smp_cpus) { | |
5816 | nb_numa_nodes = smp_cpus; | |
5817 | } | |
5818 | ||
5819 | /* If no memory size if given for any node, assume the default case | |
5820 | * and distribute the available memory equally across all nodes | |
5821 | */ | |
5822 | for (i = 0; i < nb_numa_nodes; i++) { | |
5823 | if (node_mem[i] != 0) | |
5824 | break; | |
5825 | } | |
5826 | if (i == nb_numa_nodes) { | |
5827 | uint64_t usedmem = 0; | |
5828 | ||
5829 | /* On Linux, the each node's border has to be 8MB aligned, | |
5830 | * the final node gets the rest. | |
5831 | */ | |
5832 | for (i = 0; i < nb_numa_nodes - 1; i++) { | |
5833 | node_mem[i] = (ram_size / nb_numa_nodes) & ~((1 << 23UL) - 1); | |
5834 | usedmem += node_mem[i]; | |
5835 | } | |
5836 | node_mem[i] = ram_size - usedmem; | |
5837 | } | |
5838 | ||
5839 | for (i = 0; i < nb_numa_nodes; i++) { | |
5840 | if (node_cpumask[i] != 0) | |
5841 | break; | |
5842 | } | |
5843 | /* assigning the VCPUs round-robin is easier to implement, guest OSes | |
5844 | * must cope with this anyway, because there are BIOSes out there in | |
5845 | * real machines which also use this scheme. | |
5846 | */ | |
5847 | if (i == nb_numa_nodes) { | |
5848 | for (i = 0; i < smp_cpus; i++) { | |
5849 | node_cpumask[i % nb_numa_nodes] |= 1 << i; | |
5850 | } | |
5851 | } | |
5852 | } | |
5853 | ||
5854 | if (kvm_enabled()) { | |
5855 | int ret; | |
5856 | ||
5857 | ret = kvm_init(smp_cpus); | |
5858 | if (ret < 0) { | |
5859 | fprintf(stderr, "failed to initialize KVM\n"); | |
5860 | exit(1); | |
5861 | } | |
5862 | } | |
5863 | ||
5864 | if (monitor_device) { | |
5865 | monitor_hd = qemu_chr_open("monitor", monitor_device, NULL); | |
5866 | if (!monitor_hd) { | |
5867 | fprintf(stderr, "qemu: could not open monitor device '%s'\n", monitor_device); | |
5868 | exit(1); | |
5869 | } | |
5870 | } | |
5871 | ||
5872 | for(i = 0; i < MAX_SERIAL_PORTS; i++) { | |
5873 | const char *devname = serial_devices[i]; | |
5874 | if (devname && strcmp(devname, "none")) { | |
5875 | char label[32]; | |
5876 | snprintf(label, sizeof(label), "serial%d", i); | |
5877 | serial_hds[i] = qemu_chr_open(label, devname, NULL); | |
5878 | if (!serial_hds[i]) { | |
5879 | fprintf(stderr, "qemu: could not open serial device '%s'\n", | |
5880 | devname); | |
5881 | exit(1); | |
5882 | } | |
5883 | } | |
5884 | } | |
5885 | ||
5886 | for(i = 0; i < MAX_PARALLEL_PORTS; i++) { | |
5887 | const char *devname = parallel_devices[i]; | |
5888 | if (devname && strcmp(devname, "none")) { | |
5889 | char label[32]; | |
5890 | snprintf(label, sizeof(label), "parallel%d", i); | |
5891 | parallel_hds[i] = qemu_chr_open(label, devname, NULL); | |
5892 | if (!parallel_hds[i]) { | |
5893 | fprintf(stderr, "qemu: could not open parallel device '%s'\n", | |
5894 | devname); | |
5895 | exit(1); | |
5896 | } | |
5897 | } | |
5898 | } | |
5899 | ||
5900 | for(i = 0; i < MAX_VIRTIO_CONSOLES; i++) { | |
5901 | const char *devname = virtio_consoles[i]; | |
5902 | if (devname && strcmp(devname, "none")) { | |
5903 | char label[32]; | |
5904 | snprintf(label, sizeof(label), "virtcon%d", i); | |
5905 | virtcon_hds[i] = qemu_chr_open(label, devname, NULL); | |
5906 | if (!virtcon_hds[i]) { | |
5907 | fprintf(stderr, "qemu: could not open virtio console '%s'\n", | |
5908 | devname); | |
5909 | exit(1); | |
5910 | } | |
5911 | } | |
5912 | } | |
5913 | ||
5914 | module_call_init(MODULE_INIT_DEVICE); | |
5915 | ||
5916 | if (machine->compat_props) { | |
5917 | qdev_prop_register_compat(machine->compat_props); | |
5918 | } | |
5919 | machine->init(ram_size, boot_devices, | |
5920 | kernel_filename, kernel_cmdline, initrd_filename, cpu_model); | |
5921 | ||
5922 | ||
5923 | for (env = first_cpu; env != NULL; env = env->next_cpu) { | |
5924 | for (i = 0; i < nb_numa_nodes; i++) { | |
5925 | if (node_cpumask[i] & (1 << env->cpu_index)) { | |
5926 | env->numa_node = i; | |
5927 | } | |
5928 | } | |
5929 | } | |
5930 | ||
5931 | current_machine = machine; | |
5932 | ||
5933 | /* init USB devices */ | |
5934 | if (usb_enabled) { | |
5935 | foreach_device_config(DEV_USB, usb_parse); | |
5936 | } | |
5937 | ||
5938 | /* init generic devices */ | |
5939 | if (qemu_opts_foreach(&qemu_device_opts, device_init_func, NULL, 1) != 0) | |
5940 | exit(1); | |
5941 | ||
5942 | if (!display_state) | |
5943 | dumb_display_init(); | |
5944 | /* just use the first displaystate for the moment */ | |
5945 | ds = display_state; | |
5946 | ||
5947 | if (display_type == DT_DEFAULT) { | |
5948 | #if defined(CONFIG_SDL) || defined(CONFIG_COCOA) | |
5949 | display_type = DT_SDL; | |
5950 | #else | |
5951 | display_type = DT_VNC; | |
5952 | vnc_display = "localhost:0,to=99"; | |
5953 | show_vnc_port = 1; | |
5954 | #endif | |
5955 | } | |
5956 | ||
5957 | ||
5958 | switch (display_type) { | |
5959 | case DT_NOGRAPHIC: | |
5960 | break; | |
5961 | #if defined(CONFIG_CURSES) | |
5962 | case DT_CURSES: | |
5963 | curses_display_init(ds, full_screen); | |
5964 | break; | |
5965 | #endif | |
5966 | #if defined(CONFIG_SDL) | |
5967 | case DT_SDL: | |
5968 | sdl_display_init(ds, full_screen, no_frame); | |
5969 | break; | |
5970 | #elif defined(CONFIG_COCOA) | |
5971 | case DT_SDL: | |
5972 | cocoa_display_init(ds, full_screen); | |
5973 | break; | |
5974 | #endif | |
5975 | case DT_VNC: | |
5976 | vnc_display_init(ds); | |
5977 | if (vnc_display_open(ds, vnc_display) < 0) | |
5978 | exit(1); | |
5979 | ||
5980 | if (show_vnc_port) { | |
5981 | printf("VNC server running on `%s'\n", vnc_display_local_addr(ds)); | |
5982 | } | |
5983 | break; | |
5984 | default: | |
5985 | break; | |
5986 | } | |
5987 | dpy_resize(ds); | |
5988 | ||
5989 | dcl = ds->listeners; | |
5990 | while (dcl != NULL) { | |
5991 | if (dcl->dpy_refresh != NULL) { | |
5992 | ds->gui_timer = qemu_new_timer(rt_clock, gui_update, ds); | |
5993 | qemu_mod_timer(ds->gui_timer, qemu_get_clock(rt_clock)); | |
5994 | } | |
5995 | dcl = dcl->next; | |
5996 | } | |
5997 | ||
5998 | if (display_type == DT_NOGRAPHIC || display_type == DT_VNC) { | |
5999 | nographic_timer = qemu_new_timer(rt_clock, nographic_update, NULL); | |
6000 | qemu_mod_timer(nographic_timer, qemu_get_clock(rt_clock)); | |
6001 | } | |
6002 | ||
6003 | text_consoles_set_display(display_state); | |
6004 | qemu_chr_initial_reset(); | |
6005 | ||
6006 | if (monitor_device && monitor_hd) | |
6007 | monitor_init(monitor_hd, MONITOR_USE_READLINE | MONITOR_IS_DEFAULT); | |
6008 | ||
6009 | for(i = 0; i < MAX_SERIAL_PORTS; i++) { | |
6010 | const char *devname = serial_devices[i]; | |
6011 | if (devname && strcmp(devname, "none")) { | |
6012 | if (strstart(devname, "vc", 0)) | |
6013 | qemu_chr_printf(serial_hds[i], "serial%d console\r\n", i); | |
6014 | } | |
6015 | } | |
6016 | ||
6017 | for(i = 0; i < MAX_PARALLEL_PORTS; i++) { | |
6018 | const char *devname = parallel_devices[i]; | |
6019 | if (devname && strcmp(devname, "none")) { | |
6020 | if (strstart(devname, "vc", 0)) | |
6021 | qemu_chr_printf(parallel_hds[i], "parallel%d console\r\n", i); | |
6022 | } | |
6023 | } | |
6024 | ||
6025 | for(i = 0; i < MAX_VIRTIO_CONSOLES; i++) { | |
6026 | const char *devname = virtio_consoles[i]; | |
6027 | if (virtcon_hds[i] && devname) { | |
6028 | if (strstart(devname, "vc", 0)) | |
6029 | qemu_chr_printf(virtcon_hds[i], "virtio console%d\r\n", i); | |
6030 | } | |
6031 | } | |
6032 | ||
6033 | if (gdbstub_dev && gdbserver_start(gdbstub_dev) < 0) { | |
6034 | fprintf(stderr, "qemu: could not open gdbserver on device '%s'\n", | |
6035 | gdbstub_dev); | |
6036 | exit(1); | |
6037 | } | |
6038 | ||
6039 | if (loadvm) | |
6040 | do_loadvm(cur_mon, loadvm); | |
6041 | ||
6042 | if (incoming) { | |
6043 | autostart = 0; | |
6044 | qemu_start_incoming_migration(incoming); | |
6045 | } | |
6046 | ||
6047 | else if (autostart) | |
6048 | vm_start(); | |
6049 | ||
6050 | #ifndef _WIN32 | |
6051 | if (daemonize) { | |
6052 | uint8_t status = 0; | |
6053 | ssize_t len; | |
6054 | ||
6055 | again1: | |
6056 | len = write(fds[1], &status, 1); | |
6057 | if (len == -1 && (errno == EINTR)) | |
6058 | goto again1; | |
6059 | ||
6060 | if (len != 1) | |
6061 | exit(1); | |
6062 | ||
6063 | chdir("/"); | |
6064 | TFR(fd = open("/dev/null", O_RDWR)); | |
6065 | if (fd == -1) | |
6066 | exit(1); | |
6067 | } | |
6068 | ||
6069 | if (run_as) { | |
6070 | pwd = getpwnam(run_as); | |
6071 | if (!pwd) { | |
6072 | fprintf(stderr, "User \"%s\" doesn't exist\n", run_as); | |
6073 | exit(1); | |
6074 | } | |
6075 | } | |
6076 | ||
6077 | if (chroot_dir) { | |
6078 | if (chroot(chroot_dir) < 0) { | |
6079 | fprintf(stderr, "chroot failed\n"); | |
6080 | exit(1); | |
6081 | } | |
6082 | chdir("/"); | |
6083 | } | |
6084 | ||
6085 | if (run_as) { | |
6086 | if (setgid(pwd->pw_gid) < 0) { | |
6087 | fprintf(stderr, "Failed to setgid(%d)\n", pwd->pw_gid); | |
6088 | exit(1); | |
6089 | } | |
6090 | if (setuid(pwd->pw_uid) < 0) { | |
6091 | fprintf(stderr, "Failed to setuid(%d)\n", pwd->pw_uid); | |
6092 | exit(1); | |
6093 | } | |
6094 | if (setuid(0) != -1) { | |
6095 | fprintf(stderr, "Dropping privileges failed\n"); | |
6096 | exit(1); | |
6097 | } | |
6098 | } | |
6099 | ||
6100 | if (daemonize) { | |
6101 | dup2(fd, 0); | |
6102 | dup2(fd, 1); | |
6103 | dup2(fd, 2); | |
6104 | ||
6105 | close(fd); | |
6106 | } | |
6107 | #endif | |
6108 | ||
6109 | main_loop(); | |
6110 | quit_timers(); | |
6111 | net_cleanup(); | |
6112 | ||
6113 | return 0; | |
6114 | } |