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1 | /* | |
2 | * QEMU System Emulator | |
3 | * | |
4 | * Copyright (c) 2003-2004 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 "vl.h" | |
25 | ||
26 | #include <unistd.h> | |
27 | #include <fcntl.h> | |
28 | #include <signal.h> | |
29 | #include <time.h> | |
30 | #include <errno.h> | |
31 | #include <sys/time.h> | |
32 | ||
33 | #ifndef _WIN32 | |
34 | #include <sys/times.h> | |
35 | #include <sys/wait.h> | |
36 | #include <termios.h> | |
37 | #include <sys/poll.h> | |
38 | #include <sys/mman.h> | |
39 | #include <sys/ioctl.h> | |
40 | #include <sys/socket.h> | |
41 | #ifdef _BSD | |
42 | #include <sys/stat.h> | |
43 | #include <libutil.h> | |
44 | #else | |
45 | #include <linux/if.h> | |
46 | #include <linux/if_tun.h> | |
47 | #include <pty.h> | |
48 | #include <malloc.h> | |
49 | #include <linux/rtc.h> | |
50 | #endif | |
51 | #endif | |
52 | ||
53 | #if defined(CONFIG_SLIRP) | |
54 | #include "libslirp.h" | |
55 | #endif | |
56 | ||
57 | #ifdef _WIN32 | |
58 | #include <malloc.h> | |
59 | #include <sys/timeb.h> | |
60 | #include <windows.h> | |
61 | #define getopt_long_only getopt_long | |
62 | #define memalign(align, size) malloc(size) | |
63 | #endif | |
64 | ||
65 | #ifdef CONFIG_SDL | |
66 | #if defined(__linux__) | |
67 | /* SDL use the pthreads and they modify sigaction. We don't | |
68 | want that. */ | |
69 | #if (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 2)) | |
70 | extern void __libc_sigaction(); | |
71 | #define sigaction(sig, act, oact) __libc_sigaction(sig, act, oact) | |
72 | #else | |
73 | extern void __sigaction(); | |
74 | #define sigaction(sig, act, oact) __sigaction(sig, act, oact) | |
75 | #endif | |
76 | #endif /* __linux__ */ | |
77 | #endif /* CONFIG_SDL */ | |
78 | ||
79 | #include "disas.h" | |
80 | ||
81 | #include "exec-all.h" | |
82 | ||
83 | //#define DO_TB_FLUSH | |
84 | ||
85 | #define DEFAULT_NETWORK_SCRIPT "/etc/qemu-ifup" | |
86 | ||
87 | //#define DEBUG_UNUSED_IOPORT | |
88 | //#define DEBUG_IOPORT | |
89 | ||
90 | #if !defined(CONFIG_SOFTMMU) | |
91 | #define PHYS_RAM_MAX_SIZE (256 * 1024 * 1024) | |
92 | #else | |
93 | #define PHYS_RAM_MAX_SIZE (2047 * 1024 * 1024) | |
94 | #endif | |
95 | ||
96 | #ifdef TARGET_PPC | |
97 | #define DEFAULT_RAM_SIZE 144 | |
98 | #else | |
99 | #define DEFAULT_RAM_SIZE 32 | |
100 | #endif | |
101 | /* in ms */ | |
102 | #define GUI_REFRESH_INTERVAL 30 | |
103 | ||
104 | /* XXX: use a two level table to limit memory usage */ | |
105 | #define MAX_IOPORTS 65536 | |
106 | ||
107 | const char *bios_dir = CONFIG_QEMU_SHAREDIR; | |
108 | char phys_ram_file[1024]; | |
109 | CPUState *global_env; | |
110 | CPUState *cpu_single_env; | |
111 | void *ioport_opaque[MAX_IOPORTS]; | |
112 | IOPortReadFunc *ioport_read_table[3][MAX_IOPORTS]; | |
113 | IOPortWriteFunc *ioport_write_table[3][MAX_IOPORTS]; | |
114 | BlockDriverState *bs_table[MAX_DISKS], *fd_table[MAX_FD]; | |
115 | int vga_ram_size; | |
116 | int bios_size; | |
117 | static DisplayState display_state; | |
118 | int nographic; | |
119 | int64_t ticks_per_sec; | |
120 | int boot_device = 'c'; | |
121 | int ram_size; | |
122 | static char network_script[1024]; | |
123 | int pit_min_timer_count = 0; | |
124 | int nb_nics; | |
125 | NetDriverState nd_table[MAX_NICS]; | |
126 | SerialState *serial_console; | |
127 | QEMUTimer *gui_timer; | |
128 | int vm_running; | |
129 | int audio_enabled = 0; | |
130 | int pci_enabled = 1; | |
131 | int prep_enabled = 0; | |
132 | int rtc_utc = 1; | |
133 | int cirrus_vga_enabled = 0; | |
134 | int graphic_width = 640; | |
135 | int graphic_height = 480; | |
136 | int graphic_depth = 15; | |
137 | ||
138 | /***********************************************************/ | |
139 | /* x86 ISA bus support */ | |
140 | ||
141 | target_phys_addr_t isa_mem_base = 0; | |
142 | ||
143 | uint32_t default_ioport_readb(void *opaque, uint32_t address) | |
144 | { | |
145 | #ifdef DEBUG_UNUSED_IOPORT | |
146 | fprintf(stderr, "inb: port=0x%04x\n", address); | |
147 | #endif | |
148 | return 0xff; | |
149 | } | |
150 | ||
151 | void default_ioport_writeb(void *opaque, uint32_t address, uint32_t data) | |
152 | { | |
153 | #ifdef DEBUG_UNUSED_IOPORT | |
154 | fprintf(stderr, "outb: port=0x%04x data=0x%02x\n", address, data); | |
155 | #endif | |
156 | } | |
157 | ||
158 | /* default is to make two byte accesses */ | |
159 | uint32_t default_ioport_readw(void *opaque, uint32_t address) | |
160 | { | |
161 | uint32_t data; | |
162 | data = ioport_read_table[0][address](ioport_opaque[address], address); | |
163 | address = (address + 1) & (MAX_IOPORTS - 1); | |
164 | data |= ioport_read_table[0][address](ioport_opaque[address], address) << 8; | |
165 | return data; | |
166 | } | |
167 | ||
168 | void default_ioport_writew(void *opaque, uint32_t address, uint32_t data) | |
169 | { | |
170 | ioport_write_table[0][address](ioport_opaque[address], address, data & 0xff); | |
171 | address = (address + 1) & (MAX_IOPORTS - 1); | |
172 | ioport_write_table[0][address](ioport_opaque[address], address, (data >> 8) & 0xff); | |
173 | } | |
174 | ||
175 | uint32_t default_ioport_readl(void *opaque, uint32_t address) | |
176 | { | |
177 | #ifdef DEBUG_UNUSED_IOPORT | |
178 | fprintf(stderr, "inl: port=0x%04x\n", address); | |
179 | #endif | |
180 | return 0xffffffff; | |
181 | } | |
182 | ||
183 | void default_ioport_writel(void *opaque, uint32_t address, uint32_t data) | |
184 | { | |
185 | #ifdef DEBUG_UNUSED_IOPORT | |
186 | fprintf(stderr, "outl: port=0x%04x data=0x%02x\n", address, data); | |
187 | #endif | |
188 | } | |
189 | ||
190 | void init_ioports(void) | |
191 | { | |
192 | int i; | |
193 | ||
194 | for(i = 0; i < MAX_IOPORTS; i++) { | |
195 | ioport_read_table[0][i] = default_ioport_readb; | |
196 | ioport_write_table[0][i] = default_ioport_writeb; | |
197 | ioport_read_table[1][i] = default_ioport_readw; | |
198 | ioport_write_table[1][i] = default_ioport_writew; | |
199 | ioport_read_table[2][i] = default_ioport_readl; | |
200 | ioport_write_table[2][i] = default_ioport_writel; | |
201 | } | |
202 | } | |
203 | ||
204 | /* size is the word size in byte */ | |
205 | int register_ioport_read(int start, int length, int size, | |
206 | IOPortReadFunc *func, void *opaque) | |
207 | { | |
208 | int i, bsize; | |
209 | ||
210 | if (size == 1) { | |
211 | bsize = 0; | |
212 | } else if (size == 2) { | |
213 | bsize = 1; | |
214 | } else if (size == 4) { | |
215 | bsize = 2; | |
216 | } else { | |
217 | hw_error("register_ioport_read: invalid size"); | |
218 | return -1; | |
219 | } | |
220 | for(i = start; i < start + length; i += size) { | |
221 | ioport_read_table[bsize][i] = func; | |
222 | if (ioport_opaque[i] != NULL && ioport_opaque[i] != opaque) | |
223 | hw_error("register_ioport_read: invalid opaque"); | |
224 | ioport_opaque[i] = opaque; | |
225 | } | |
226 | return 0; | |
227 | } | |
228 | ||
229 | /* size is the word size in byte */ | |
230 | int register_ioport_write(int start, int length, int size, | |
231 | IOPortWriteFunc *func, void *opaque) | |
232 | { | |
233 | int i, bsize; | |
234 | ||
235 | if (size == 1) { | |
236 | bsize = 0; | |
237 | } else if (size == 2) { | |
238 | bsize = 1; | |
239 | } else if (size == 4) { | |
240 | bsize = 2; | |
241 | } else { | |
242 | hw_error("register_ioport_write: invalid size"); | |
243 | return -1; | |
244 | } | |
245 | for(i = start; i < start + length; i += size) { | |
246 | ioport_write_table[bsize][i] = func; | |
247 | if (ioport_opaque[i] != NULL && ioport_opaque[i] != opaque) | |
248 | hw_error("register_ioport_read: invalid opaque"); | |
249 | ioport_opaque[i] = opaque; | |
250 | } | |
251 | return 0; | |
252 | } | |
253 | ||
254 | void isa_unassign_ioport(int start, int length) | |
255 | { | |
256 | int i; | |
257 | ||
258 | for(i = start; i < start + length; i++) { | |
259 | ioport_read_table[0][i] = default_ioport_readb; | |
260 | ioport_read_table[1][i] = default_ioport_readw; | |
261 | ioport_read_table[2][i] = default_ioport_readl; | |
262 | ||
263 | ioport_write_table[0][i] = default_ioport_writeb; | |
264 | ioport_write_table[1][i] = default_ioport_writew; | |
265 | ioport_write_table[2][i] = default_ioport_writel; | |
266 | } | |
267 | } | |
268 | ||
269 | void pstrcpy(char *buf, int buf_size, const char *str) | |
270 | { | |
271 | int c; | |
272 | char *q = buf; | |
273 | ||
274 | if (buf_size <= 0) | |
275 | return; | |
276 | ||
277 | for(;;) { | |
278 | c = *str++; | |
279 | if (c == 0 || q >= buf + buf_size - 1) | |
280 | break; | |
281 | *q++ = c; | |
282 | } | |
283 | *q = '\0'; | |
284 | } | |
285 | ||
286 | /* strcat and truncate. */ | |
287 | char *pstrcat(char *buf, int buf_size, const char *s) | |
288 | { | |
289 | int len; | |
290 | len = strlen(buf); | |
291 | if (len < buf_size) | |
292 | pstrcpy(buf + len, buf_size - len, s); | |
293 | return buf; | |
294 | } | |
295 | ||
296 | /* return the size or -1 if error */ | |
297 | int get_image_size(const char *filename) | |
298 | { | |
299 | int fd, size; | |
300 | fd = open(filename, O_RDONLY | O_BINARY); | |
301 | if (fd < 0) | |
302 | return -1; | |
303 | size = lseek(fd, 0, SEEK_END); | |
304 | close(fd); | |
305 | return size; | |
306 | } | |
307 | ||
308 | /* return the size or -1 if error */ | |
309 | int load_image(const char *filename, uint8_t *addr) | |
310 | { | |
311 | int fd, size; | |
312 | fd = open(filename, O_RDONLY | O_BINARY); | |
313 | if (fd < 0) | |
314 | return -1; | |
315 | size = lseek(fd, 0, SEEK_END); | |
316 | lseek(fd, 0, SEEK_SET); | |
317 | if (read(fd, addr, size) != size) { | |
318 | close(fd); | |
319 | return -1; | |
320 | } | |
321 | close(fd); | |
322 | return size; | |
323 | } | |
324 | ||
325 | void cpu_outb(CPUState *env, int addr, int val) | |
326 | { | |
327 | #ifdef DEBUG_IOPORT | |
328 | if (loglevel & CPU_LOG_IOPORT) | |
329 | fprintf(logfile, "outb: %04x %02x\n", addr, val); | |
330 | #endif | |
331 | ioport_write_table[0][addr](ioport_opaque[addr], addr, val); | |
332 | } | |
333 | ||
334 | void cpu_outw(CPUState *env, int addr, int val) | |
335 | { | |
336 | #ifdef DEBUG_IOPORT | |
337 | if (loglevel & CPU_LOG_IOPORT) | |
338 | fprintf(logfile, "outw: %04x %04x\n", addr, val); | |
339 | #endif | |
340 | ioport_write_table[1][addr](ioport_opaque[addr], addr, val); | |
341 | } | |
342 | ||
343 | void cpu_outl(CPUState *env, int addr, int val) | |
344 | { | |
345 | #ifdef DEBUG_IOPORT | |
346 | if (loglevel & CPU_LOG_IOPORT) | |
347 | fprintf(logfile, "outl: %04x %08x\n", addr, val); | |
348 | #endif | |
349 | ioport_write_table[2][addr](ioport_opaque[addr], addr, val); | |
350 | } | |
351 | ||
352 | int cpu_inb(CPUState *env, int addr) | |
353 | { | |
354 | int val; | |
355 | val = ioport_read_table[0][addr](ioport_opaque[addr], addr); | |
356 | #ifdef DEBUG_IOPORT | |
357 | if (loglevel & CPU_LOG_IOPORT) | |
358 | fprintf(logfile, "inb : %04x %02x\n", addr, val); | |
359 | #endif | |
360 | return val; | |
361 | } | |
362 | ||
363 | int cpu_inw(CPUState *env, int addr) | |
364 | { | |
365 | int val; | |
366 | val = ioport_read_table[1][addr](ioport_opaque[addr], addr); | |
367 | #ifdef DEBUG_IOPORT | |
368 | if (loglevel & CPU_LOG_IOPORT) | |
369 | fprintf(logfile, "inw : %04x %04x\n", addr, val); | |
370 | #endif | |
371 | return val; | |
372 | } | |
373 | ||
374 | int cpu_inl(CPUState *env, int addr) | |
375 | { | |
376 | int val; | |
377 | val = ioport_read_table[2][addr](ioport_opaque[addr], addr); | |
378 | #ifdef DEBUG_IOPORT | |
379 | if (loglevel & CPU_LOG_IOPORT) | |
380 | fprintf(logfile, "inl : %04x %08x\n", addr, val); | |
381 | #endif | |
382 | return val; | |
383 | } | |
384 | ||
385 | /***********************************************************/ | |
386 | void hw_error(const char *fmt, ...) | |
387 | { | |
388 | va_list ap; | |
389 | ||
390 | va_start(ap, fmt); | |
391 | fprintf(stderr, "qemu: hardware error: "); | |
392 | vfprintf(stderr, fmt, ap); | |
393 | fprintf(stderr, "\n"); | |
394 | #ifdef TARGET_I386 | |
395 | cpu_x86_dump_state(global_env, stderr, X86_DUMP_FPU | X86_DUMP_CCOP); | |
396 | #else | |
397 | cpu_dump_state(global_env, stderr, 0); | |
398 | #endif | |
399 | va_end(ap); | |
400 | abort(); | |
401 | } | |
402 | ||
403 | /***********************************************************/ | |
404 | /* keyboard/mouse */ | |
405 | ||
406 | static QEMUPutKBDEvent *qemu_put_kbd_event; | |
407 | static void *qemu_put_kbd_event_opaque; | |
408 | static QEMUPutMouseEvent *qemu_put_mouse_event; | |
409 | static void *qemu_put_mouse_event_opaque; | |
410 | ||
411 | void qemu_add_kbd_event_handler(QEMUPutKBDEvent *func, void *opaque) | |
412 | { | |
413 | qemu_put_kbd_event_opaque = opaque; | |
414 | qemu_put_kbd_event = func; | |
415 | } | |
416 | ||
417 | void qemu_add_mouse_event_handler(QEMUPutMouseEvent *func, void *opaque) | |
418 | { | |
419 | qemu_put_mouse_event_opaque = opaque; | |
420 | qemu_put_mouse_event = func; | |
421 | } | |
422 | ||
423 | void kbd_put_keycode(int keycode) | |
424 | { | |
425 | if (qemu_put_kbd_event) { | |
426 | qemu_put_kbd_event(qemu_put_kbd_event_opaque, keycode); | |
427 | } | |
428 | } | |
429 | ||
430 | void kbd_mouse_event(int dx, int dy, int dz, int buttons_state) | |
431 | { | |
432 | if (qemu_put_mouse_event) { | |
433 | qemu_put_mouse_event(qemu_put_mouse_event_opaque, | |
434 | dx, dy, dz, buttons_state); | |
435 | } | |
436 | } | |
437 | ||
438 | /***********************************************************/ | |
439 | /* timers */ | |
440 | ||
441 | #if defined(__powerpc__) | |
442 | ||
443 | static inline uint32_t get_tbl(void) | |
444 | { | |
445 | uint32_t tbl; | |
446 | asm volatile("mftb %0" : "=r" (tbl)); | |
447 | return tbl; | |
448 | } | |
449 | ||
450 | static inline uint32_t get_tbu(void) | |
451 | { | |
452 | uint32_t tbl; | |
453 | asm volatile("mftbu %0" : "=r" (tbl)); | |
454 | return tbl; | |
455 | } | |
456 | ||
457 | int64_t cpu_get_real_ticks(void) | |
458 | { | |
459 | uint32_t l, h, h1; | |
460 | /* NOTE: we test if wrapping has occurred */ | |
461 | do { | |
462 | h = get_tbu(); | |
463 | l = get_tbl(); | |
464 | h1 = get_tbu(); | |
465 | } while (h != h1); | |
466 | return ((int64_t)h << 32) | l; | |
467 | } | |
468 | ||
469 | #elif defined(__i386__) | |
470 | ||
471 | int64_t cpu_get_real_ticks(void) | |
472 | { | |
473 | int64_t val; | |
474 | asm volatile ("rdtsc" : "=A" (val)); | |
475 | return val; | |
476 | } | |
477 | ||
478 | #elif defined(__x86_64__) | |
479 | ||
480 | int64_t cpu_get_real_ticks(void) | |
481 | { | |
482 | uint32_t low,high; | |
483 | int64_t val; | |
484 | asm volatile("rdtsc" : "=a" (low), "=d" (high)); | |
485 | val = high; | |
486 | val <<= 32; | |
487 | val |= low; | |
488 | return val; | |
489 | } | |
490 | ||
491 | #else | |
492 | #error unsupported CPU | |
493 | #endif | |
494 | ||
495 | static int64_t cpu_ticks_offset; | |
496 | static int cpu_ticks_enabled; | |
497 | ||
498 | static inline int64_t cpu_get_ticks(void) | |
499 | { | |
500 | if (!cpu_ticks_enabled) { | |
501 | return cpu_ticks_offset; | |
502 | } else { | |
503 | return cpu_get_real_ticks() + cpu_ticks_offset; | |
504 | } | |
505 | } | |
506 | ||
507 | /* enable cpu_get_ticks() */ | |
508 | void cpu_enable_ticks(void) | |
509 | { | |
510 | if (!cpu_ticks_enabled) { | |
511 | cpu_ticks_offset -= cpu_get_real_ticks(); | |
512 | cpu_ticks_enabled = 1; | |
513 | } | |
514 | } | |
515 | ||
516 | /* disable cpu_get_ticks() : the clock is stopped. You must not call | |
517 | cpu_get_ticks() after that. */ | |
518 | void cpu_disable_ticks(void) | |
519 | { | |
520 | if (cpu_ticks_enabled) { | |
521 | cpu_ticks_offset = cpu_get_ticks(); | |
522 | cpu_ticks_enabled = 0; | |
523 | } | |
524 | } | |
525 | ||
526 | static int64_t get_clock(void) | |
527 | { | |
528 | #ifdef _WIN32 | |
529 | struct _timeb tb; | |
530 | _ftime(&tb); | |
531 | return ((int64_t)tb.time * 1000 + (int64_t)tb.millitm) * 1000; | |
532 | #else | |
533 | struct timeval tv; | |
534 | gettimeofday(&tv, NULL); | |
535 | return tv.tv_sec * 1000000LL + tv.tv_usec; | |
536 | #endif | |
537 | } | |
538 | ||
539 | void cpu_calibrate_ticks(void) | |
540 | { | |
541 | int64_t usec, ticks; | |
542 | ||
543 | usec = get_clock(); | |
544 | ticks = cpu_get_real_ticks(); | |
545 | #ifdef _WIN32 | |
546 | Sleep(50); | |
547 | #else | |
548 | usleep(50 * 1000); | |
549 | #endif | |
550 | usec = get_clock() - usec; | |
551 | ticks = cpu_get_real_ticks() - ticks; | |
552 | ticks_per_sec = (ticks * 1000000LL + (usec >> 1)) / usec; | |
553 | } | |
554 | ||
555 | /* compute with 96 bit intermediate result: (a*b)/c */ | |
556 | uint64_t muldiv64(uint64_t a, uint32_t b, uint32_t c) | |
557 | { | |
558 | union { | |
559 | uint64_t ll; | |
560 | struct { | |
561 | #ifdef WORDS_BIGENDIAN | |
562 | uint32_t high, low; | |
563 | #else | |
564 | uint32_t low, high; | |
565 | #endif | |
566 | } l; | |
567 | } u, res; | |
568 | uint64_t rl, rh; | |
569 | ||
570 | u.ll = a; | |
571 | rl = (uint64_t)u.l.low * (uint64_t)b; | |
572 | rh = (uint64_t)u.l.high * (uint64_t)b; | |
573 | rh += (rl >> 32); | |
574 | res.l.high = rh / c; | |
575 | res.l.low = (((rh % c) << 32) + (rl & 0xffffffff)) / c; | |
576 | return res.ll; | |
577 | } | |
578 | ||
579 | #define QEMU_TIMER_REALTIME 0 | |
580 | #define QEMU_TIMER_VIRTUAL 1 | |
581 | ||
582 | struct QEMUClock { | |
583 | int type; | |
584 | /* XXX: add frequency */ | |
585 | }; | |
586 | ||
587 | struct QEMUTimer { | |
588 | QEMUClock *clock; | |
589 | int64_t expire_time; | |
590 | QEMUTimerCB *cb; | |
591 | void *opaque; | |
592 | struct QEMUTimer *next; | |
593 | }; | |
594 | ||
595 | QEMUClock *rt_clock; | |
596 | QEMUClock *vm_clock; | |
597 | ||
598 | static QEMUTimer *active_timers[2]; | |
599 | #ifdef _WIN32 | |
600 | static MMRESULT timerID; | |
601 | #else | |
602 | /* frequency of the times() clock tick */ | |
603 | static int timer_freq; | |
604 | #endif | |
605 | ||
606 | QEMUClock *qemu_new_clock(int type) | |
607 | { | |
608 | QEMUClock *clock; | |
609 | clock = qemu_mallocz(sizeof(QEMUClock)); | |
610 | if (!clock) | |
611 | return NULL; | |
612 | clock->type = type; | |
613 | return clock; | |
614 | } | |
615 | ||
616 | QEMUTimer *qemu_new_timer(QEMUClock *clock, QEMUTimerCB *cb, void *opaque) | |
617 | { | |
618 | QEMUTimer *ts; | |
619 | ||
620 | ts = qemu_mallocz(sizeof(QEMUTimer)); | |
621 | ts->clock = clock; | |
622 | ts->cb = cb; | |
623 | ts->opaque = opaque; | |
624 | return ts; | |
625 | } | |
626 | ||
627 | void qemu_free_timer(QEMUTimer *ts) | |
628 | { | |
629 | qemu_free(ts); | |
630 | } | |
631 | ||
632 | /* stop a timer, but do not dealloc it */ | |
633 | void qemu_del_timer(QEMUTimer *ts) | |
634 | { | |
635 | QEMUTimer **pt, *t; | |
636 | ||
637 | /* NOTE: this code must be signal safe because | |
638 | qemu_timer_expired() can be called from a signal. */ | |
639 | pt = &active_timers[ts->clock->type]; | |
640 | for(;;) { | |
641 | t = *pt; | |
642 | if (!t) | |
643 | break; | |
644 | if (t == ts) { | |
645 | *pt = t->next; | |
646 | break; | |
647 | } | |
648 | pt = &t->next; | |
649 | } | |
650 | } | |
651 | ||
652 | /* modify the current timer so that it will be fired when current_time | |
653 | >= expire_time. The corresponding callback will be called. */ | |
654 | void qemu_mod_timer(QEMUTimer *ts, int64_t expire_time) | |
655 | { | |
656 | QEMUTimer **pt, *t; | |
657 | ||
658 | qemu_del_timer(ts); | |
659 | ||
660 | /* add the timer in the sorted list */ | |
661 | /* NOTE: this code must be signal safe because | |
662 | qemu_timer_expired() can be called from a signal. */ | |
663 | pt = &active_timers[ts->clock->type]; | |
664 | for(;;) { | |
665 | t = *pt; | |
666 | if (!t) | |
667 | break; | |
668 | if (t->expire_time > expire_time) | |
669 | break; | |
670 | pt = &t->next; | |
671 | } | |
672 | ts->expire_time = expire_time; | |
673 | ts->next = *pt; | |
674 | *pt = ts; | |
675 | } | |
676 | ||
677 | int qemu_timer_pending(QEMUTimer *ts) | |
678 | { | |
679 | QEMUTimer *t; | |
680 | for(t = active_timers[ts->clock->type]; t != NULL; t = t->next) { | |
681 | if (t == ts) | |
682 | return 1; | |
683 | } | |
684 | return 0; | |
685 | } | |
686 | ||
687 | static inline int qemu_timer_expired(QEMUTimer *timer_head, int64_t current_time) | |
688 | { | |
689 | if (!timer_head) | |
690 | return 0; | |
691 | return (timer_head->expire_time <= current_time); | |
692 | } | |
693 | ||
694 | static void qemu_run_timers(QEMUTimer **ptimer_head, int64_t current_time) | |
695 | { | |
696 | QEMUTimer *ts; | |
697 | ||
698 | for(;;) { | |
699 | ts = *ptimer_head; | |
700 | if (ts->expire_time > current_time) | |
701 | break; | |
702 | /* remove timer from the list before calling the callback */ | |
703 | *ptimer_head = ts->next; | |
704 | ts->next = NULL; | |
705 | ||
706 | /* run the callback (the timer list can be modified) */ | |
707 | ts->cb(ts->opaque); | |
708 | } | |
709 | } | |
710 | ||
711 | int64_t qemu_get_clock(QEMUClock *clock) | |
712 | { | |
713 | switch(clock->type) { | |
714 | case QEMU_TIMER_REALTIME: | |
715 | #ifdef _WIN32 | |
716 | return GetTickCount(); | |
717 | #else | |
718 | { | |
719 | struct tms tp; | |
720 | ||
721 | /* Note that using gettimeofday() is not a good solution | |
722 | for timers because its value change when the date is | |
723 | modified. */ | |
724 | if (timer_freq == 100) { | |
725 | return times(&tp) * 10; | |
726 | } else { | |
727 | return ((int64_t)times(&tp) * 1000) / timer_freq; | |
728 | } | |
729 | } | |
730 | #endif | |
731 | default: | |
732 | case QEMU_TIMER_VIRTUAL: | |
733 | return cpu_get_ticks(); | |
734 | } | |
735 | } | |
736 | ||
737 | /* save a timer */ | |
738 | void qemu_put_timer(QEMUFile *f, QEMUTimer *ts) | |
739 | { | |
740 | uint64_t expire_time; | |
741 | ||
742 | if (qemu_timer_pending(ts)) { | |
743 | expire_time = ts->expire_time; | |
744 | } else { | |
745 | expire_time = -1; | |
746 | } | |
747 | qemu_put_be64(f, expire_time); | |
748 | } | |
749 | ||
750 | void qemu_get_timer(QEMUFile *f, QEMUTimer *ts) | |
751 | { | |
752 | uint64_t expire_time; | |
753 | ||
754 | expire_time = qemu_get_be64(f); | |
755 | if (expire_time != -1) { | |
756 | qemu_mod_timer(ts, expire_time); | |
757 | } else { | |
758 | qemu_del_timer(ts); | |
759 | } | |
760 | } | |
761 | ||
762 | static void timer_save(QEMUFile *f, void *opaque) | |
763 | { | |
764 | if (cpu_ticks_enabled) { | |
765 | hw_error("cannot save state if virtual timers are running"); | |
766 | } | |
767 | qemu_put_be64s(f, &cpu_ticks_offset); | |
768 | qemu_put_be64s(f, &ticks_per_sec); | |
769 | } | |
770 | ||
771 | static int timer_load(QEMUFile *f, void *opaque, int version_id) | |
772 | { | |
773 | if (version_id != 1) | |
774 | return -EINVAL; | |
775 | if (cpu_ticks_enabled) { | |
776 | return -EINVAL; | |
777 | } | |
778 | qemu_get_be64s(f, &cpu_ticks_offset); | |
779 | qemu_get_be64s(f, &ticks_per_sec); | |
780 | return 0; | |
781 | } | |
782 | ||
783 | #ifdef _WIN32 | |
784 | void CALLBACK host_alarm_handler(UINT uTimerID, UINT uMsg, | |
785 | DWORD_PTR dwUser, DWORD_PTR dw1, DWORD_PTR dw2) | |
786 | #else | |
787 | static void host_alarm_handler(int host_signum) | |
788 | #endif | |
789 | { | |
790 | if (qemu_timer_expired(active_timers[QEMU_TIMER_VIRTUAL], | |
791 | qemu_get_clock(vm_clock)) || | |
792 | qemu_timer_expired(active_timers[QEMU_TIMER_REALTIME], | |
793 | qemu_get_clock(rt_clock))) { | |
794 | /* stop the cpu because a timer occured */ | |
795 | cpu_interrupt(global_env, CPU_INTERRUPT_EXIT); | |
796 | } | |
797 | } | |
798 | ||
799 | #ifndef _WIN32 | |
800 | ||
801 | #if defined(__linux__) | |
802 | ||
803 | #define RTC_FREQ 1024 | |
804 | ||
805 | static int rtc_fd; | |
806 | ||
807 | static int start_rtc_timer(void) | |
808 | { | |
809 | rtc_fd = open("/dev/rtc", O_RDONLY); | |
810 | if (rtc_fd < 0) | |
811 | return -1; | |
812 | if (ioctl(rtc_fd, RTC_IRQP_SET, RTC_FREQ) < 0) { | |
813 | fprintf(stderr, "Could not configure '/dev/rtc' to have a 1024 Hz timer. This is not a fatal\n" | |
814 | "error, but for better emulation accuracy either use a 2.6 host Linux kernel or\n" | |
815 | "type 'echo 1024 > /proc/sys/dev/rtc/max-user-freq' as root.\n"); | |
816 | goto fail; | |
817 | } | |
818 | if (ioctl(rtc_fd, RTC_PIE_ON, 0) < 0) { | |
819 | fail: | |
820 | close(rtc_fd); | |
821 | return -1; | |
822 | } | |
823 | pit_min_timer_count = PIT_FREQ / RTC_FREQ; | |
824 | return 0; | |
825 | } | |
826 | ||
827 | #else | |
828 | ||
829 | static int start_rtc_timer(void) | |
830 | { | |
831 | return -1; | |
832 | } | |
833 | ||
834 | #endif /* !defined(__linux__) */ | |
835 | ||
836 | #endif /* !defined(_WIN32) */ | |
837 | ||
838 | static void init_timers(void) | |
839 | { | |
840 | rt_clock = qemu_new_clock(QEMU_TIMER_REALTIME); | |
841 | vm_clock = qemu_new_clock(QEMU_TIMER_VIRTUAL); | |
842 | ||
843 | #ifdef _WIN32 | |
844 | { | |
845 | int count=0; | |
846 | timerID = timeSetEvent(10, // interval (ms) | |
847 | 0, // resolution | |
848 | host_alarm_handler, // function | |
849 | (DWORD)&count, // user parameter | |
850 | TIME_PERIODIC | TIME_CALLBACK_FUNCTION); | |
851 | if( !timerID ) { | |
852 | perror("failed timer alarm"); | |
853 | exit(1); | |
854 | } | |
855 | } | |
856 | pit_min_timer_count = ((uint64_t)10000 * PIT_FREQ) / 1000000; | |
857 | #else | |
858 | { | |
859 | struct sigaction act; | |
860 | struct itimerval itv; | |
861 | ||
862 | /* get times() syscall frequency */ | |
863 | timer_freq = sysconf(_SC_CLK_TCK); | |
864 | ||
865 | /* timer signal */ | |
866 | sigfillset(&act.sa_mask); | |
867 | act.sa_flags = 0; | |
868 | #if defined (TARGET_I386) && defined(USE_CODE_COPY) | |
869 | act.sa_flags |= SA_ONSTACK; | |
870 | #endif | |
871 | act.sa_handler = host_alarm_handler; | |
872 | sigaction(SIGALRM, &act, NULL); | |
873 | ||
874 | itv.it_interval.tv_sec = 0; | |
875 | itv.it_interval.tv_usec = 1000; | |
876 | itv.it_value.tv_sec = 0; | |
877 | itv.it_value.tv_usec = 10 * 1000; | |
878 | setitimer(ITIMER_REAL, &itv, NULL); | |
879 | /* we probe the tick duration of the kernel to inform the user if | |
880 | the emulated kernel requested a too high timer frequency */ | |
881 | getitimer(ITIMER_REAL, &itv); | |
882 | ||
883 | if (itv.it_interval.tv_usec > 1000) { | |
884 | /* try to use /dev/rtc to have a faster timer */ | |
885 | if (start_rtc_timer() < 0) | |
886 | goto use_itimer; | |
887 | /* disable itimer */ | |
888 | itv.it_interval.tv_sec = 0; | |
889 | itv.it_interval.tv_usec = 0; | |
890 | itv.it_value.tv_sec = 0; | |
891 | itv.it_value.tv_usec = 0; | |
892 | setitimer(ITIMER_REAL, &itv, NULL); | |
893 | ||
894 | /* use the RTC */ | |
895 | sigaction(SIGIO, &act, NULL); | |
896 | fcntl(rtc_fd, F_SETFL, O_ASYNC); | |
897 | fcntl(rtc_fd, F_SETOWN, getpid()); | |
898 | } else { | |
899 | use_itimer: | |
900 | pit_min_timer_count = ((uint64_t)itv.it_interval.tv_usec * | |
901 | PIT_FREQ) / 1000000; | |
902 | } | |
903 | } | |
904 | #endif | |
905 | } | |
906 | ||
907 | void quit_timers(void) | |
908 | { | |
909 | #ifdef _WIN32 | |
910 | timeKillEvent(timerID); | |
911 | #endif | |
912 | } | |
913 | ||
914 | /***********************************************************/ | |
915 | /* serial device */ | |
916 | ||
917 | #ifdef _WIN32 | |
918 | ||
919 | int serial_open_device(void) | |
920 | { | |
921 | return -1; | |
922 | } | |
923 | ||
924 | #else | |
925 | ||
926 | int serial_open_device(void) | |
927 | { | |
928 | char slave_name[1024]; | |
929 | int master_fd, slave_fd; | |
930 | ||
931 | if (serial_console == NULL && nographic) { | |
932 | /* use console for serial port */ | |
933 | return 0; | |
934 | } else { | |
935 | #if 0 | |
936 | /* Not satisfying */ | |
937 | if (openpty(&master_fd, &slave_fd, slave_name, NULL, NULL) < 0) { | |
938 | fprintf(stderr, "warning: could not create pseudo terminal for serial port\n"); | |
939 | return -1; | |
940 | } | |
941 | fprintf(stderr, "Serial port redirected to %s\n", slave_name); | |
942 | return master_fd; | |
943 | #else | |
944 | return -1; | |
945 | #endif | |
946 | } | |
947 | } | |
948 | ||
949 | #endif | |
950 | ||
951 | /***********************************************************/ | |
952 | /* Linux network device redirectors */ | |
953 | ||
954 | void hex_dump(FILE *f, const uint8_t *buf, int size) | |
955 | { | |
956 | int len, i, j, c; | |
957 | ||
958 | for(i=0;i<size;i+=16) { | |
959 | len = size - i; | |
960 | if (len > 16) | |
961 | len = 16; | |
962 | fprintf(f, "%08x ", i); | |
963 | for(j=0;j<16;j++) { | |
964 | if (j < len) | |
965 | fprintf(f, " %02x", buf[i+j]); | |
966 | else | |
967 | fprintf(f, " "); | |
968 | } | |
969 | fprintf(f, " "); | |
970 | for(j=0;j<len;j++) { | |
971 | c = buf[i+j]; | |
972 | if (c < ' ' || c > '~') | |
973 | c = '.'; | |
974 | fprintf(f, "%c", c); | |
975 | } | |
976 | fprintf(f, "\n"); | |
977 | } | |
978 | } | |
979 | ||
980 | void qemu_send_packet(NetDriverState *nd, const uint8_t *buf, int size) | |
981 | { | |
982 | nd->send_packet(nd, buf, size); | |
983 | } | |
984 | ||
985 | void qemu_add_read_packet(NetDriverState *nd, IOCanRWHandler *fd_can_read, | |
986 | IOReadHandler *fd_read, void *opaque) | |
987 | { | |
988 | nd->add_read_packet(nd, fd_can_read, fd_read, opaque); | |
989 | } | |
990 | ||
991 | /* dummy network adapter */ | |
992 | ||
993 | static void dummy_send_packet(NetDriverState *nd, const uint8_t *buf, int size) | |
994 | { | |
995 | } | |
996 | ||
997 | static void dummy_add_read_packet(NetDriverState *nd, | |
998 | IOCanRWHandler *fd_can_read, | |
999 | IOReadHandler *fd_read, void *opaque) | |
1000 | { | |
1001 | } | |
1002 | ||
1003 | static int net_dummy_init(NetDriverState *nd) | |
1004 | { | |
1005 | nd->send_packet = dummy_send_packet; | |
1006 | nd->add_read_packet = dummy_add_read_packet; | |
1007 | pstrcpy(nd->ifname, sizeof(nd->ifname), "dummy"); | |
1008 | return 0; | |
1009 | } | |
1010 | ||
1011 | #if defined(CONFIG_SLIRP) | |
1012 | ||
1013 | /* slirp network adapter */ | |
1014 | ||
1015 | static void *slirp_fd_opaque; | |
1016 | static IOCanRWHandler *slirp_fd_can_read; | |
1017 | static IOReadHandler *slirp_fd_read; | |
1018 | static int slirp_inited; | |
1019 | ||
1020 | int slirp_can_output(void) | |
1021 | { | |
1022 | return slirp_fd_can_read(slirp_fd_opaque); | |
1023 | } | |
1024 | ||
1025 | void slirp_output(const uint8_t *pkt, int pkt_len) | |
1026 | { | |
1027 | #if 0 | |
1028 | printf("output:\n"); | |
1029 | hex_dump(stdout, pkt, pkt_len); | |
1030 | #endif | |
1031 | slirp_fd_read(slirp_fd_opaque, pkt, pkt_len); | |
1032 | } | |
1033 | ||
1034 | static void slirp_send_packet(NetDriverState *nd, const uint8_t *buf, int size) | |
1035 | { | |
1036 | #if 0 | |
1037 | printf("input:\n"); | |
1038 | hex_dump(stdout, buf, size); | |
1039 | #endif | |
1040 | slirp_input(buf, size); | |
1041 | } | |
1042 | ||
1043 | static void slirp_add_read_packet(NetDriverState *nd, | |
1044 | IOCanRWHandler *fd_can_read, | |
1045 | IOReadHandler *fd_read, void *opaque) | |
1046 | { | |
1047 | slirp_fd_opaque = opaque; | |
1048 | slirp_fd_can_read = fd_can_read; | |
1049 | slirp_fd_read = fd_read; | |
1050 | } | |
1051 | ||
1052 | static int net_slirp_init(NetDriverState *nd) | |
1053 | { | |
1054 | if (!slirp_inited) { | |
1055 | slirp_inited = 1; | |
1056 | slirp_init(); | |
1057 | } | |
1058 | nd->send_packet = slirp_send_packet; | |
1059 | nd->add_read_packet = slirp_add_read_packet; | |
1060 | pstrcpy(nd->ifname, sizeof(nd->ifname), "slirp"); | |
1061 | return 0; | |
1062 | } | |
1063 | ||
1064 | #endif /* CONFIG_SLIRP */ | |
1065 | ||
1066 | #if !defined(_WIN32) | |
1067 | #ifdef _BSD | |
1068 | static int tun_open(char *ifname, int ifname_size) | |
1069 | { | |
1070 | int fd; | |
1071 | char *dev; | |
1072 | struct stat s; | |
1073 | ||
1074 | fd = open("/dev/tap", O_RDWR); | |
1075 | if (fd < 0) { | |
1076 | fprintf(stderr, "warning: could not open /dev/tap: no virtual network emulation\n"); | |
1077 | return -1; | |
1078 | } | |
1079 | ||
1080 | fstat(fd, &s); | |
1081 | dev = devname(s.st_rdev, S_IFCHR); | |
1082 | pstrcpy(ifname, ifname_size, dev); | |
1083 | ||
1084 | fcntl(fd, F_SETFL, O_NONBLOCK); | |
1085 | return fd; | |
1086 | } | |
1087 | #else | |
1088 | static int tun_open(char *ifname, int ifname_size) | |
1089 | { | |
1090 | struct ifreq ifr; | |
1091 | int fd, ret; | |
1092 | ||
1093 | fd = open("/dev/net/tun", O_RDWR); | |
1094 | if (fd < 0) { | |
1095 | fprintf(stderr, "warning: could not open /dev/net/tun: no virtual network emulation\n"); | |
1096 | return -1; | |
1097 | } | |
1098 | memset(&ifr, 0, sizeof(ifr)); | |
1099 | ifr.ifr_flags = IFF_TAP | IFF_NO_PI; | |
1100 | pstrcpy(ifr.ifr_name, IFNAMSIZ, "tun%d"); | |
1101 | ret = ioctl(fd, TUNSETIFF, (void *) &ifr); | |
1102 | if (ret != 0) { | |
1103 | fprintf(stderr, "warning: could not configure /dev/net/tun: no virtual network emulation\n"); | |
1104 | close(fd); | |
1105 | return -1; | |
1106 | } | |
1107 | printf("Connected to host network interface: %s\n", ifr.ifr_name); | |
1108 | pstrcpy(ifname, ifname_size, ifr.ifr_name); | |
1109 | fcntl(fd, F_SETFL, O_NONBLOCK); | |
1110 | return fd; | |
1111 | } | |
1112 | #endif | |
1113 | ||
1114 | static void tun_send_packet(NetDriverState *nd, const uint8_t *buf, int size) | |
1115 | { | |
1116 | write(nd->fd, buf, size); | |
1117 | } | |
1118 | ||
1119 | static void tun_add_read_packet(NetDriverState *nd, | |
1120 | IOCanRWHandler *fd_can_read, | |
1121 | IOReadHandler *fd_read, void *opaque) | |
1122 | { | |
1123 | qemu_add_fd_read_handler(nd->fd, fd_can_read, fd_read, opaque); | |
1124 | } | |
1125 | ||
1126 | static int net_tun_init(NetDriverState *nd) | |
1127 | { | |
1128 | int pid, status; | |
1129 | char *args[3]; | |
1130 | char **parg; | |
1131 | ||
1132 | nd->fd = tun_open(nd->ifname, sizeof(nd->ifname)); | |
1133 | if (nd->fd < 0) | |
1134 | return -1; | |
1135 | ||
1136 | /* try to launch network init script */ | |
1137 | pid = fork(); | |
1138 | if (pid >= 0) { | |
1139 | if (pid == 0) { | |
1140 | parg = args; | |
1141 | *parg++ = network_script; | |
1142 | *parg++ = nd->ifname; | |
1143 | *parg++ = NULL; | |
1144 | execv(network_script, args); | |
1145 | exit(1); | |
1146 | } | |
1147 | while (waitpid(pid, &status, 0) != pid); | |
1148 | if (!WIFEXITED(status) || | |
1149 | WEXITSTATUS(status) != 0) { | |
1150 | fprintf(stderr, "%s: could not launch network script\n", | |
1151 | network_script); | |
1152 | } | |
1153 | } | |
1154 | nd->send_packet = tun_send_packet; | |
1155 | nd->add_read_packet = tun_add_read_packet; | |
1156 | return 0; | |
1157 | } | |
1158 | ||
1159 | static int net_fd_init(NetDriverState *nd, int fd) | |
1160 | { | |
1161 | nd->fd = fd; | |
1162 | nd->send_packet = tun_send_packet; | |
1163 | nd->add_read_packet = tun_add_read_packet; | |
1164 | pstrcpy(nd->ifname, sizeof(nd->ifname), "tunfd"); | |
1165 | return 0; | |
1166 | } | |
1167 | ||
1168 | #endif /* !_WIN32 */ | |
1169 | ||
1170 | /***********************************************************/ | |
1171 | /* dumb display */ | |
1172 | ||
1173 | #ifdef _WIN32 | |
1174 | ||
1175 | static void term_exit(void) | |
1176 | { | |
1177 | } | |
1178 | ||
1179 | static void term_init(void) | |
1180 | { | |
1181 | } | |
1182 | ||
1183 | #else | |
1184 | ||
1185 | /* init terminal so that we can grab keys */ | |
1186 | static struct termios oldtty; | |
1187 | ||
1188 | static void term_exit(void) | |
1189 | { | |
1190 | tcsetattr (0, TCSANOW, &oldtty); | |
1191 | } | |
1192 | ||
1193 | static void term_init(void) | |
1194 | { | |
1195 | struct termios tty; | |
1196 | ||
1197 | tcgetattr (0, &tty); | |
1198 | oldtty = tty; | |
1199 | ||
1200 | tty.c_iflag &= ~(IGNBRK|BRKINT|PARMRK|ISTRIP | |
1201 | |INLCR|IGNCR|ICRNL|IXON); | |
1202 | tty.c_oflag |= OPOST; | |
1203 | tty.c_lflag &= ~(ECHO|ECHONL|ICANON|IEXTEN); | |
1204 | /* if graphical mode, we allow Ctrl-C handling */ | |
1205 | if (nographic) | |
1206 | tty.c_lflag &= ~ISIG; | |
1207 | tty.c_cflag &= ~(CSIZE|PARENB); | |
1208 | tty.c_cflag |= CS8; | |
1209 | tty.c_cc[VMIN] = 1; | |
1210 | tty.c_cc[VTIME] = 0; | |
1211 | ||
1212 | tcsetattr (0, TCSANOW, &tty); | |
1213 | ||
1214 | atexit(term_exit); | |
1215 | ||
1216 | fcntl(0, F_SETFL, O_NONBLOCK); | |
1217 | } | |
1218 | ||
1219 | #endif | |
1220 | ||
1221 | static void dumb_update(DisplayState *ds, int x, int y, int w, int h) | |
1222 | { | |
1223 | } | |
1224 | ||
1225 | static void dumb_resize(DisplayState *ds, int w, int h) | |
1226 | { | |
1227 | } | |
1228 | ||
1229 | static void dumb_refresh(DisplayState *ds) | |
1230 | { | |
1231 | vga_update_display(); | |
1232 | } | |
1233 | ||
1234 | void dumb_display_init(DisplayState *ds) | |
1235 | { | |
1236 | ds->data = NULL; | |
1237 | ds->linesize = 0; | |
1238 | ds->depth = 0; | |
1239 | ds->dpy_update = dumb_update; | |
1240 | ds->dpy_resize = dumb_resize; | |
1241 | ds->dpy_refresh = dumb_refresh; | |
1242 | } | |
1243 | ||
1244 | #if !defined(CONFIG_SOFTMMU) | |
1245 | /***********************************************************/ | |
1246 | /* cpu signal handler */ | |
1247 | static void host_segv_handler(int host_signum, siginfo_t *info, | |
1248 | void *puc) | |
1249 | { | |
1250 | if (cpu_signal_handler(host_signum, info, puc)) | |
1251 | return; | |
1252 | term_exit(); | |
1253 | abort(); | |
1254 | } | |
1255 | #endif | |
1256 | ||
1257 | /***********************************************************/ | |
1258 | /* I/O handling */ | |
1259 | ||
1260 | #define MAX_IO_HANDLERS 64 | |
1261 | ||
1262 | typedef struct IOHandlerRecord { | |
1263 | int fd; | |
1264 | IOCanRWHandler *fd_can_read; | |
1265 | IOReadHandler *fd_read; | |
1266 | void *opaque; | |
1267 | /* temporary data */ | |
1268 | struct pollfd *ufd; | |
1269 | int max_size; | |
1270 | struct IOHandlerRecord *next; | |
1271 | } IOHandlerRecord; | |
1272 | ||
1273 | static IOHandlerRecord *first_io_handler; | |
1274 | ||
1275 | int qemu_add_fd_read_handler(int fd, IOCanRWHandler *fd_can_read, | |
1276 | IOReadHandler *fd_read, void *opaque) | |
1277 | { | |
1278 | IOHandlerRecord *ioh; | |
1279 | ||
1280 | ioh = qemu_mallocz(sizeof(IOHandlerRecord)); | |
1281 | if (!ioh) | |
1282 | return -1; | |
1283 | ioh->fd = fd; | |
1284 | ioh->fd_can_read = fd_can_read; | |
1285 | ioh->fd_read = fd_read; | |
1286 | ioh->opaque = opaque; | |
1287 | ioh->next = first_io_handler; | |
1288 | first_io_handler = ioh; | |
1289 | return 0; | |
1290 | } | |
1291 | ||
1292 | void qemu_del_fd_read_handler(int fd) | |
1293 | { | |
1294 | IOHandlerRecord **pioh, *ioh; | |
1295 | ||
1296 | pioh = &first_io_handler; | |
1297 | for(;;) { | |
1298 | ioh = *pioh; | |
1299 | if (ioh == NULL) | |
1300 | break; | |
1301 | if (ioh->fd == fd) { | |
1302 | *pioh = ioh->next; | |
1303 | break; | |
1304 | } | |
1305 | pioh = &ioh->next; | |
1306 | } | |
1307 | } | |
1308 | ||
1309 | /***********************************************************/ | |
1310 | /* savevm/loadvm support */ | |
1311 | ||
1312 | void qemu_put_buffer(QEMUFile *f, const uint8_t *buf, int size) | |
1313 | { | |
1314 | fwrite(buf, 1, size, f); | |
1315 | } | |
1316 | ||
1317 | void qemu_put_byte(QEMUFile *f, int v) | |
1318 | { | |
1319 | fputc(v, f); | |
1320 | } | |
1321 | ||
1322 | void qemu_put_be16(QEMUFile *f, unsigned int v) | |
1323 | { | |
1324 | qemu_put_byte(f, v >> 8); | |
1325 | qemu_put_byte(f, v); | |
1326 | } | |
1327 | ||
1328 | void qemu_put_be32(QEMUFile *f, unsigned int v) | |
1329 | { | |
1330 | qemu_put_byte(f, v >> 24); | |
1331 | qemu_put_byte(f, v >> 16); | |
1332 | qemu_put_byte(f, v >> 8); | |
1333 | qemu_put_byte(f, v); | |
1334 | } | |
1335 | ||
1336 | void qemu_put_be64(QEMUFile *f, uint64_t v) | |
1337 | { | |
1338 | qemu_put_be32(f, v >> 32); | |
1339 | qemu_put_be32(f, v); | |
1340 | } | |
1341 | ||
1342 | int qemu_get_buffer(QEMUFile *f, uint8_t *buf, int size) | |
1343 | { | |
1344 | return fread(buf, 1, size, f); | |
1345 | } | |
1346 | ||
1347 | int qemu_get_byte(QEMUFile *f) | |
1348 | { | |
1349 | int v; | |
1350 | v = fgetc(f); | |
1351 | if (v == EOF) | |
1352 | return 0; | |
1353 | else | |
1354 | return v; | |
1355 | } | |
1356 | ||
1357 | unsigned int qemu_get_be16(QEMUFile *f) | |
1358 | { | |
1359 | unsigned int v; | |
1360 | v = qemu_get_byte(f) << 8; | |
1361 | v |= qemu_get_byte(f); | |
1362 | return v; | |
1363 | } | |
1364 | ||
1365 | unsigned int qemu_get_be32(QEMUFile *f) | |
1366 | { | |
1367 | unsigned int v; | |
1368 | v = qemu_get_byte(f) << 24; | |
1369 | v |= qemu_get_byte(f) << 16; | |
1370 | v |= qemu_get_byte(f) << 8; | |
1371 | v |= qemu_get_byte(f); | |
1372 | return v; | |
1373 | } | |
1374 | ||
1375 | uint64_t qemu_get_be64(QEMUFile *f) | |
1376 | { | |
1377 | uint64_t v; | |
1378 | v = (uint64_t)qemu_get_be32(f) << 32; | |
1379 | v |= qemu_get_be32(f); | |
1380 | return v; | |
1381 | } | |
1382 | ||
1383 | int64_t qemu_ftell(QEMUFile *f) | |
1384 | { | |
1385 | return ftell(f); | |
1386 | } | |
1387 | ||
1388 | int64_t qemu_fseek(QEMUFile *f, int64_t pos, int whence) | |
1389 | { | |
1390 | if (fseek(f, pos, whence) < 0) | |
1391 | return -1; | |
1392 | return ftell(f); | |
1393 | } | |
1394 | ||
1395 | typedef struct SaveStateEntry { | |
1396 | char idstr[256]; | |
1397 | int instance_id; | |
1398 | int version_id; | |
1399 | SaveStateHandler *save_state; | |
1400 | LoadStateHandler *load_state; | |
1401 | void *opaque; | |
1402 | struct SaveStateEntry *next; | |
1403 | } SaveStateEntry; | |
1404 | ||
1405 | static SaveStateEntry *first_se; | |
1406 | ||
1407 | int register_savevm(const char *idstr, | |
1408 | int instance_id, | |
1409 | int version_id, | |
1410 | SaveStateHandler *save_state, | |
1411 | LoadStateHandler *load_state, | |
1412 | void *opaque) | |
1413 | { | |
1414 | SaveStateEntry *se, **pse; | |
1415 | ||
1416 | se = qemu_malloc(sizeof(SaveStateEntry)); | |
1417 | if (!se) | |
1418 | return -1; | |
1419 | pstrcpy(se->idstr, sizeof(se->idstr), idstr); | |
1420 | se->instance_id = instance_id; | |
1421 | se->version_id = version_id; | |
1422 | se->save_state = save_state; | |
1423 | se->load_state = load_state; | |
1424 | se->opaque = opaque; | |
1425 | se->next = NULL; | |
1426 | ||
1427 | /* add at the end of list */ | |
1428 | pse = &first_se; | |
1429 | while (*pse != NULL) | |
1430 | pse = &(*pse)->next; | |
1431 | *pse = se; | |
1432 | return 0; | |
1433 | } | |
1434 | ||
1435 | #define QEMU_VM_FILE_MAGIC 0x5145564d | |
1436 | #define QEMU_VM_FILE_VERSION 0x00000001 | |
1437 | ||
1438 | int qemu_savevm(const char *filename) | |
1439 | { | |
1440 | SaveStateEntry *se; | |
1441 | QEMUFile *f; | |
1442 | int len, len_pos, cur_pos, saved_vm_running, ret; | |
1443 | ||
1444 | saved_vm_running = vm_running; | |
1445 | vm_stop(0); | |
1446 | ||
1447 | f = fopen(filename, "wb"); | |
1448 | if (!f) { | |
1449 | ret = -1; | |
1450 | goto the_end; | |
1451 | } | |
1452 | ||
1453 | qemu_put_be32(f, QEMU_VM_FILE_MAGIC); | |
1454 | qemu_put_be32(f, QEMU_VM_FILE_VERSION); | |
1455 | ||
1456 | for(se = first_se; se != NULL; se = se->next) { | |
1457 | /* ID string */ | |
1458 | len = strlen(se->idstr); | |
1459 | qemu_put_byte(f, len); | |
1460 | qemu_put_buffer(f, se->idstr, len); | |
1461 | ||
1462 | qemu_put_be32(f, se->instance_id); | |
1463 | qemu_put_be32(f, se->version_id); | |
1464 | ||
1465 | /* record size: filled later */ | |
1466 | len_pos = ftell(f); | |
1467 | qemu_put_be32(f, 0); | |
1468 | ||
1469 | se->save_state(f, se->opaque); | |
1470 | ||
1471 | /* fill record size */ | |
1472 | cur_pos = ftell(f); | |
1473 | len = ftell(f) - len_pos - 4; | |
1474 | fseek(f, len_pos, SEEK_SET); | |
1475 | qemu_put_be32(f, len); | |
1476 | fseek(f, cur_pos, SEEK_SET); | |
1477 | } | |
1478 | ||
1479 | fclose(f); | |
1480 | ret = 0; | |
1481 | the_end: | |
1482 | if (saved_vm_running) | |
1483 | vm_start(); | |
1484 | return ret; | |
1485 | } | |
1486 | ||
1487 | static SaveStateEntry *find_se(const char *idstr, int instance_id) | |
1488 | { | |
1489 | SaveStateEntry *se; | |
1490 | ||
1491 | for(se = first_se; se != NULL; se = se->next) { | |
1492 | if (!strcmp(se->idstr, idstr) && | |
1493 | instance_id == se->instance_id) | |
1494 | return se; | |
1495 | } | |
1496 | return NULL; | |
1497 | } | |
1498 | ||
1499 | int qemu_loadvm(const char *filename) | |
1500 | { | |
1501 | SaveStateEntry *se; | |
1502 | QEMUFile *f; | |
1503 | int len, cur_pos, ret, instance_id, record_len, version_id; | |
1504 | int saved_vm_running; | |
1505 | unsigned int v; | |
1506 | char idstr[256]; | |
1507 | ||
1508 | saved_vm_running = vm_running; | |
1509 | vm_stop(0); | |
1510 | ||
1511 | f = fopen(filename, "rb"); | |
1512 | if (!f) { | |
1513 | ret = -1; | |
1514 | goto the_end; | |
1515 | } | |
1516 | ||
1517 | v = qemu_get_be32(f); | |
1518 | if (v != QEMU_VM_FILE_MAGIC) | |
1519 | goto fail; | |
1520 | v = qemu_get_be32(f); | |
1521 | if (v != QEMU_VM_FILE_VERSION) { | |
1522 | fail: | |
1523 | fclose(f); | |
1524 | ret = -1; | |
1525 | goto the_end; | |
1526 | } | |
1527 | for(;;) { | |
1528 | #if defined (DO_TB_FLUSH) | |
1529 | tb_flush(global_env); | |
1530 | #endif | |
1531 | len = qemu_get_byte(f); | |
1532 | if (feof(f)) | |
1533 | break; | |
1534 | qemu_get_buffer(f, idstr, len); | |
1535 | idstr[len] = '\0'; | |
1536 | instance_id = qemu_get_be32(f); | |
1537 | version_id = qemu_get_be32(f); | |
1538 | record_len = qemu_get_be32(f); | |
1539 | #if 0 | |
1540 | printf("idstr=%s instance=0x%x version=%d len=%d\n", | |
1541 | idstr, instance_id, version_id, record_len); | |
1542 | #endif | |
1543 | cur_pos = ftell(f); | |
1544 | se = find_se(idstr, instance_id); | |
1545 | if (!se) { | |
1546 | fprintf(stderr, "qemu: warning: instance 0x%x of device '%s' not present in current VM\n", | |
1547 | instance_id, idstr); | |
1548 | } else { | |
1549 | ret = se->load_state(f, se->opaque, version_id); | |
1550 | if (ret < 0) { | |
1551 | fprintf(stderr, "qemu: warning: error while loading state for instance 0x%x of device '%s'\n", | |
1552 | instance_id, idstr); | |
1553 | } | |
1554 | } | |
1555 | /* always seek to exact end of record */ | |
1556 | qemu_fseek(f, cur_pos + record_len, SEEK_SET); | |
1557 | } | |
1558 | fclose(f); | |
1559 | ret = 0; | |
1560 | the_end: | |
1561 | if (saved_vm_running) | |
1562 | vm_start(); | |
1563 | return ret; | |
1564 | } | |
1565 | ||
1566 | /***********************************************************/ | |
1567 | /* cpu save/restore */ | |
1568 | ||
1569 | #if defined(TARGET_I386) | |
1570 | ||
1571 | static void cpu_put_seg(QEMUFile *f, SegmentCache *dt) | |
1572 | { | |
1573 | qemu_put_be32(f, (uint32_t)dt->base); | |
1574 | qemu_put_be32(f, dt->limit); | |
1575 | qemu_put_be32(f, dt->flags); | |
1576 | } | |
1577 | ||
1578 | static void cpu_get_seg(QEMUFile *f, SegmentCache *dt) | |
1579 | { | |
1580 | dt->base = (uint8_t *)qemu_get_be32(f); | |
1581 | dt->limit = qemu_get_be32(f); | |
1582 | dt->flags = qemu_get_be32(f); | |
1583 | } | |
1584 | ||
1585 | void cpu_save(QEMUFile *f, void *opaque) | |
1586 | { | |
1587 | CPUState *env = opaque; | |
1588 | uint16_t fptag, fpus, fpuc; | |
1589 | uint32_t hflags; | |
1590 | int i; | |
1591 | ||
1592 | for(i = 0; i < 8; i++) | |
1593 | qemu_put_be32s(f, &env->regs[i]); | |
1594 | qemu_put_be32s(f, &env->eip); | |
1595 | qemu_put_be32s(f, &env->eflags); | |
1596 | qemu_put_be32s(f, &env->eflags); | |
1597 | hflags = env->hflags; /* XXX: suppress most of the redundant hflags */ | |
1598 | qemu_put_be32s(f, &hflags); | |
1599 | ||
1600 | /* FPU */ | |
1601 | fpuc = env->fpuc; | |
1602 | fpus = (env->fpus & ~0x3800) | (env->fpstt & 0x7) << 11; | |
1603 | fptag = 0; | |
1604 | for (i=7; i>=0; i--) { | |
1605 | fptag <<= 2; | |
1606 | if (env->fptags[i]) { | |
1607 | fptag |= 3; | |
1608 | } | |
1609 | } | |
1610 | ||
1611 | qemu_put_be16s(f, &fpuc); | |
1612 | qemu_put_be16s(f, &fpus); | |
1613 | qemu_put_be16s(f, &fptag); | |
1614 | ||
1615 | for(i = 0; i < 8; i++) { | |
1616 | uint64_t mant; | |
1617 | uint16_t exp; | |
1618 | cpu_get_fp80(&mant, &exp, env->fpregs[i]); | |
1619 | qemu_put_be64(f, mant); | |
1620 | qemu_put_be16(f, exp); | |
1621 | } | |
1622 | ||
1623 | for(i = 0; i < 6; i++) | |
1624 | cpu_put_seg(f, &env->segs[i]); | |
1625 | cpu_put_seg(f, &env->ldt); | |
1626 | cpu_put_seg(f, &env->tr); | |
1627 | cpu_put_seg(f, &env->gdt); | |
1628 | cpu_put_seg(f, &env->idt); | |
1629 | ||
1630 | qemu_put_be32s(f, &env->sysenter_cs); | |
1631 | qemu_put_be32s(f, &env->sysenter_esp); | |
1632 | qemu_put_be32s(f, &env->sysenter_eip); | |
1633 | ||
1634 | qemu_put_be32s(f, &env->cr[0]); | |
1635 | qemu_put_be32s(f, &env->cr[2]); | |
1636 | qemu_put_be32s(f, &env->cr[3]); | |
1637 | qemu_put_be32s(f, &env->cr[4]); | |
1638 | ||
1639 | for(i = 0; i < 8; i++) | |
1640 | qemu_put_be32s(f, &env->dr[i]); | |
1641 | ||
1642 | /* MMU */ | |
1643 | qemu_put_be32s(f, &env->a20_mask); | |
1644 | } | |
1645 | ||
1646 | int cpu_load(QEMUFile *f, void *opaque, int version_id) | |
1647 | { | |
1648 | CPUState *env = opaque; | |
1649 | int i; | |
1650 | uint32_t hflags; | |
1651 | uint16_t fpus, fpuc, fptag; | |
1652 | ||
1653 | if (version_id != 1) | |
1654 | return -EINVAL; | |
1655 | for(i = 0; i < 8; i++) | |
1656 | qemu_get_be32s(f, &env->regs[i]); | |
1657 | qemu_get_be32s(f, &env->eip); | |
1658 | qemu_get_be32s(f, &env->eflags); | |
1659 | qemu_get_be32s(f, &env->eflags); | |
1660 | qemu_get_be32s(f, &hflags); | |
1661 | ||
1662 | qemu_get_be16s(f, &fpuc); | |
1663 | qemu_get_be16s(f, &fpus); | |
1664 | qemu_get_be16s(f, &fptag); | |
1665 | ||
1666 | for(i = 0; i < 8; i++) { | |
1667 | uint64_t mant; | |
1668 | uint16_t exp; | |
1669 | mant = qemu_get_be64(f); | |
1670 | exp = qemu_get_be16(f); | |
1671 | env->fpregs[i] = cpu_set_fp80(mant, exp); | |
1672 | } | |
1673 | ||
1674 | env->fpuc = fpuc; | |
1675 | env->fpstt = (fpus >> 11) & 7; | |
1676 | env->fpus = fpus & ~0x3800; | |
1677 | for(i = 0; i < 8; i++) { | |
1678 | env->fptags[i] = ((fptag & 3) == 3); | |
1679 | fptag >>= 2; | |
1680 | } | |
1681 | ||
1682 | for(i = 0; i < 6; i++) | |
1683 | cpu_get_seg(f, &env->segs[i]); | |
1684 | cpu_get_seg(f, &env->ldt); | |
1685 | cpu_get_seg(f, &env->tr); | |
1686 | cpu_get_seg(f, &env->gdt); | |
1687 | cpu_get_seg(f, &env->idt); | |
1688 | ||
1689 | qemu_get_be32s(f, &env->sysenter_cs); | |
1690 | qemu_get_be32s(f, &env->sysenter_esp); | |
1691 | qemu_get_be32s(f, &env->sysenter_eip); | |
1692 | ||
1693 | qemu_get_be32s(f, &env->cr[0]); | |
1694 | qemu_get_be32s(f, &env->cr[2]); | |
1695 | qemu_get_be32s(f, &env->cr[3]); | |
1696 | qemu_get_be32s(f, &env->cr[4]); | |
1697 | ||
1698 | for(i = 0; i < 8; i++) | |
1699 | qemu_get_be32s(f, &env->dr[i]); | |
1700 | ||
1701 | /* MMU */ | |
1702 | qemu_get_be32s(f, &env->a20_mask); | |
1703 | ||
1704 | /* XXX: compute hflags from scratch, except for CPL and IIF */ | |
1705 | env->hflags = hflags; | |
1706 | tlb_flush(env, 1); | |
1707 | return 0; | |
1708 | } | |
1709 | ||
1710 | #elif defined(TARGET_PPC) | |
1711 | void cpu_save(QEMUFile *f, void *opaque) | |
1712 | { | |
1713 | } | |
1714 | ||
1715 | int cpu_load(QEMUFile *f, void *opaque, int version_id) | |
1716 | { | |
1717 | return 0; | |
1718 | } | |
1719 | #else | |
1720 | ||
1721 | #warning No CPU save/restore functions | |
1722 | ||
1723 | #endif | |
1724 | ||
1725 | /***********************************************************/ | |
1726 | /* ram save/restore */ | |
1727 | ||
1728 | /* we just avoid storing empty pages */ | |
1729 | static void ram_put_page(QEMUFile *f, const uint8_t *buf, int len) | |
1730 | { | |
1731 | int i, v; | |
1732 | ||
1733 | v = buf[0]; | |
1734 | for(i = 1; i < len; i++) { | |
1735 | if (buf[i] != v) | |
1736 | goto normal_save; | |
1737 | } | |
1738 | qemu_put_byte(f, 1); | |
1739 | qemu_put_byte(f, v); | |
1740 | return; | |
1741 | normal_save: | |
1742 | qemu_put_byte(f, 0); | |
1743 | qemu_put_buffer(f, buf, len); | |
1744 | } | |
1745 | ||
1746 | static int ram_get_page(QEMUFile *f, uint8_t *buf, int len) | |
1747 | { | |
1748 | int v; | |
1749 | ||
1750 | v = qemu_get_byte(f); | |
1751 | switch(v) { | |
1752 | case 0: | |
1753 | if (qemu_get_buffer(f, buf, len) != len) | |
1754 | return -EIO; | |
1755 | break; | |
1756 | case 1: | |
1757 | v = qemu_get_byte(f); | |
1758 | memset(buf, v, len); | |
1759 | break; | |
1760 | default: | |
1761 | return -EINVAL; | |
1762 | } | |
1763 | return 0; | |
1764 | } | |
1765 | ||
1766 | static void ram_save(QEMUFile *f, void *opaque) | |
1767 | { | |
1768 | int i; | |
1769 | qemu_put_be32(f, phys_ram_size); | |
1770 | for(i = 0; i < phys_ram_size; i+= TARGET_PAGE_SIZE) { | |
1771 | ram_put_page(f, phys_ram_base + i, TARGET_PAGE_SIZE); | |
1772 | } | |
1773 | } | |
1774 | ||
1775 | static int ram_load(QEMUFile *f, void *opaque, int version_id) | |
1776 | { | |
1777 | int i, ret; | |
1778 | ||
1779 | if (version_id != 1) | |
1780 | return -EINVAL; | |
1781 | if (qemu_get_be32(f) != phys_ram_size) | |
1782 | return -EINVAL; | |
1783 | for(i = 0; i < phys_ram_size; i+= TARGET_PAGE_SIZE) { | |
1784 | ret = ram_get_page(f, phys_ram_base + i, TARGET_PAGE_SIZE); | |
1785 | if (ret) | |
1786 | return ret; | |
1787 | } | |
1788 | return 0; | |
1789 | } | |
1790 | ||
1791 | /***********************************************************/ | |
1792 | /* main execution loop */ | |
1793 | ||
1794 | void gui_update(void *opaque) | |
1795 | { | |
1796 | display_state.dpy_refresh(&display_state); | |
1797 | qemu_mod_timer(gui_timer, GUI_REFRESH_INTERVAL + qemu_get_clock(rt_clock)); | |
1798 | } | |
1799 | ||
1800 | /* XXX: support several handlers */ | |
1801 | VMStopHandler *vm_stop_cb; | |
1802 | VMStopHandler *vm_stop_opaque; | |
1803 | ||
1804 | int qemu_add_vm_stop_handler(VMStopHandler *cb, void *opaque) | |
1805 | { | |
1806 | vm_stop_cb = cb; | |
1807 | vm_stop_opaque = opaque; | |
1808 | return 0; | |
1809 | } | |
1810 | ||
1811 | void qemu_del_vm_stop_handler(VMStopHandler *cb, void *opaque) | |
1812 | { | |
1813 | vm_stop_cb = NULL; | |
1814 | } | |
1815 | ||
1816 | void vm_start(void) | |
1817 | { | |
1818 | if (!vm_running) { | |
1819 | cpu_enable_ticks(); | |
1820 | vm_running = 1; | |
1821 | } | |
1822 | } | |
1823 | ||
1824 | void vm_stop(int reason) | |
1825 | { | |
1826 | if (vm_running) { | |
1827 | cpu_disable_ticks(); | |
1828 | vm_running = 0; | |
1829 | if (reason != 0) { | |
1830 | if (vm_stop_cb) { | |
1831 | vm_stop_cb(vm_stop_opaque, reason); | |
1832 | } | |
1833 | } | |
1834 | } | |
1835 | } | |
1836 | ||
1837 | /* reset/shutdown handler */ | |
1838 | ||
1839 | typedef struct QEMUResetEntry { | |
1840 | QEMUResetHandler *func; | |
1841 | void *opaque; | |
1842 | struct QEMUResetEntry *next; | |
1843 | } QEMUResetEntry; | |
1844 | ||
1845 | static QEMUResetEntry *first_reset_entry; | |
1846 | static int reset_requested; | |
1847 | static int shutdown_requested; | |
1848 | ||
1849 | void qemu_register_reset(QEMUResetHandler *func, void *opaque) | |
1850 | { | |
1851 | QEMUResetEntry **pre, *re; | |
1852 | ||
1853 | pre = &first_reset_entry; | |
1854 | while (*pre != NULL) | |
1855 | pre = &(*pre)->next; | |
1856 | re = qemu_mallocz(sizeof(QEMUResetEntry)); | |
1857 | re->func = func; | |
1858 | re->opaque = opaque; | |
1859 | re->next = NULL; | |
1860 | *pre = re; | |
1861 | } | |
1862 | ||
1863 | void qemu_system_reset(void) | |
1864 | { | |
1865 | QEMUResetEntry *re; | |
1866 | ||
1867 | /* reset all devices */ | |
1868 | for(re = first_reset_entry; re != NULL; re = re->next) { | |
1869 | re->func(re->opaque); | |
1870 | } | |
1871 | } | |
1872 | ||
1873 | void qemu_system_reset_request(void) | |
1874 | { | |
1875 | reset_requested = 1; | |
1876 | cpu_interrupt(cpu_single_env, CPU_INTERRUPT_EXIT); | |
1877 | } | |
1878 | ||
1879 | void qemu_system_shutdown_request(void) | |
1880 | { | |
1881 | shutdown_requested = 1; | |
1882 | cpu_interrupt(cpu_single_env, CPU_INTERRUPT_EXIT); | |
1883 | } | |
1884 | ||
1885 | static void main_cpu_reset(void *opaque) | |
1886 | { | |
1887 | #ifdef TARGET_I386 | |
1888 | CPUState *env = opaque; | |
1889 | cpu_reset(env); | |
1890 | #endif | |
1891 | } | |
1892 | ||
1893 | int main_loop(void) | |
1894 | { | |
1895 | #ifndef _WIN32 | |
1896 | struct pollfd ufds[MAX_IO_HANDLERS + 1], *pf; | |
1897 | IOHandlerRecord *ioh, *ioh_next; | |
1898 | uint8_t buf[4096]; | |
1899 | int n, max_size; | |
1900 | #endif | |
1901 | int ret, timeout; | |
1902 | CPUState *env = global_env; | |
1903 | ||
1904 | for(;;) { | |
1905 | if (vm_running) { | |
1906 | ret = cpu_exec(env); | |
1907 | if (shutdown_requested) { | |
1908 | ret = EXCP_INTERRUPT; | |
1909 | break; | |
1910 | } | |
1911 | if (reset_requested) { | |
1912 | reset_requested = 0; | |
1913 | qemu_system_reset(); | |
1914 | ret = EXCP_INTERRUPT; | |
1915 | } | |
1916 | if (ret == EXCP_DEBUG) { | |
1917 | vm_stop(EXCP_DEBUG); | |
1918 | } | |
1919 | /* if hlt instruction, we wait until the next IRQ */ | |
1920 | /* XXX: use timeout computed from timers */ | |
1921 | if (ret == EXCP_HLT) | |
1922 | timeout = 10; | |
1923 | else | |
1924 | timeout = 0; | |
1925 | } else { | |
1926 | timeout = 10; | |
1927 | } | |
1928 | ||
1929 | #ifdef _WIN32 | |
1930 | if (timeout > 0) | |
1931 | Sleep(timeout); | |
1932 | #else | |
1933 | ||
1934 | /* poll any events */ | |
1935 | /* XXX: separate device handlers from system ones */ | |
1936 | pf = ufds; | |
1937 | for(ioh = first_io_handler; ioh != NULL; ioh = ioh->next) { | |
1938 | if (!ioh->fd_can_read) { | |
1939 | max_size = 0; | |
1940 | pf->fd = ioh->fd; | |
1941 | pf->events = POLLIN; | |
1942 | ioh->ufd = pf; | |
1943 | pf++; | |
1944 | } else { | |
1945 | max_size = ioh->fd_can_read(ioh->opaque); | |
1946 | if (max_size > 0) { | |
1947 | if (max_size > sizeof(buf)) | |
1948 | max_size = sizeof(buf); | |
1949 | pf->fd = ioh->fd; | |
1950 | pf->events = POLLIN; | |
1951 | ioh->ufd = pf; | |
1952 | pf++; | |
1953 | } else { | |
1954 | ioh->ufd = NULL; | |
1955 | } | |
1956 | } | |
1957 | ioh->max_size = max_size; | |
1958 | } | |
1959 | ||
1960 | ret = poll(ufds, pf - ufds, timeout); | |
1961 | if (ret > 0) { | |
1962 | /* XXX: better handling of removal */ | |
1963 | for(ioh = first_io_handler; ioh != NULL; ioh = ioh_next) { | |
1964 | ioh_next = ioh->next; | |
1965 | pf = ioh->ufd; | |
1966 | if (pf) { | |
1967 | if (pf->revents & POLLIN) { | |
1968 | if (ioh->max_size == 0) { | |
1969 | /* just a read event */ | |
1970 | ioh->fd_read(ioh->opaque, NULL, 0); | |
1971 | } else { | |
1972 | n = read(ioh->fd, buf, ioh->max_size); | |
1973 | if (n >= 0) { | |
1974 | ioh->fd_read(ioh->opaque, buf, n); | |
1975 | } else if (errno != EAGAIN) { | |
1976 | ioh->fd_read(ioh->opaque, NULL, -errno); | |
1977 | } | |
1978 | } | |
1979 | } | |
1980 | } | |
1981 | } | |
1982 | } | |
1983 | ||
1984 | #if defined(CONFIG_SLIRP) | |
1985 | /* XXX: merge with poll() */ | |
1986 | if (slirp_inited) { | |
1987 | fd_set rfds, wfds, xfds; | |
1988 | int nfds; | |
1989 | struct timeval tv; | |
1990 | ||
1991 | nfds = -1; | |
1992 | FD_ZERO(&rfds); | |
1993 | FD_ZERO(&wfds); | |
1994 | FD_ZERO(&xfds); | |
1995 | slirp_select_fill(&nfds, &rfds, &wfds, &xfds); | |
1996 | tv.tv_sec = 0; | |
1997 | tv.tv_usec = 0; | |
1998 | ret = select(nfds + 1, &rfds, &wfds, &xfds, &tv); | |
1999 | if (ret >= 0) { | |
2000 | slirp_select_poll(&rfds, &wfds, &xfds); | |
2001 | } | |
2002 | } | |
2003 | #endif | |
2004 | ||
2005 | #endif | |
2006 | ||
2007 | if (vm_running) { | |
2008 | qemu_run_timers(&active_timers[QEMU_TIMER_VIRTUAL], | |
2009 | qemu_get_clock(vm_clock)); | |
2010 | ||
2011 | if (audio_enabled) { | |
2012 | /* XXX: add explicit timer */ | |
2013 | SB16_run(); | |
2014 | } | |
2015 | ||
2016 | /* run dma transfers, if any */ | |
2017 | DMA_run(); | |
2018 | } | |
2019 | ||
2020 | /* real time timers */ | |
2021 | qemu_run_timers(&active_timers[QEMU_TIMER_REALTIME], | |
2022 | qemu_get_clock(rt_clock)); | |
2023 | } | |
2024 | cpu_disable_ticks(); | |
2025 | return ret; | |
2026 | } | |
2027 | ||
2028 | void help(void) | |
2029 | { | |
2030 | printf("QEMU PC emulator version " QEMU_VERSION ", Copyright (c) 2003-2004 Fabrice Bellard\n" | |
2031 | "usage: %s [options] [disk_image]\n" | |
2032 | "\n" | |
2033 | "'disk_image' is a raw hard image image for IDE hard disk 0\n" | |
2034 | "\n" | |
2035 | "Standard options:\n" | |
2036 | "-fda/-fdb file use 'file' as floppy disk 0/1 image\n" | |
2037 | "-hda/-hdb file use 'file' as IDE hard disk 0/1 image\n" | |
2038 | "-hdc/-hdd file use 'file' as IDE hard disk 2/3 image\n" | |
2039 | "-cdrom file use 'file' as IDE cdrom image (cdrom is ide1 master)\n" | |
2040 | "-boot [a|b|c|d] boot on floppy (a, b), hard disk (c) or CD-ROM (d)\n" | |
2041 | "-snapshot write to temporary files instead of disk image files\n" | |
2042 | "-m megs set virtual RAM size to megs MB [default=%d]\n" | |
2043 | "-nographic disable graphical output and redirect serial I/Os to console\n" | |
2044 | "-enable-audio enable audio support\n" | |
2045 | "-localtime set the real time clock to local time [default=utc]\n" | |
2046 | #ifdef TARGET_PPC | |
2047 | "-prep Simulate a PREP system (default is PowerMAC)\n" | |
2048 | "-g WxH[xDEPTH] Set the initial VGA graphic mode\n" | |
2049 | #endif | |
2050 | "\n" | |
2051 | "Network options:\n" | |
2052 | "-nics n simulate 'n' network cards [default=1]\n" | |
2053 | "-macaddr addr set the mac address of the first interface\n" | |
2054 | "-n script set tap/tun network init script [default=%s]\n" | |
2055 | "-tun-fd fd use this fd as already opened tap/tun interface\n" | |
2056 | #ifdef CONFIG_SLIRP | |
2057 | "-user-net use user mode network stack [default if no tap/tun script]\n" | |
2058 | #endif | |
2059 | "-dummy-net use dummy network stack\n" | |
2060 | "\n" | |
2061 | "Linux boot specific:\n" | |
2062 | "-kernel bzImage use 'bzImage' as kernel image\n" | |
2063 | "-append cmdline use 'cmdline' as kernel command line\n" | |
2064 | "-initrd file use 'file' as initial ram disk\n" | |
2065 | "\n" | |
2066 | "Debug/Expert options:\n" | |
2067 | "-S freeze CPU at startup (use 'c' to start execution)\n" | |
2068 | "-s wait gdb connection to port %d\n" | |
2069 | "-p port change gdb connection port\n" | |
2070 | "-d item1,... output log to %s (use -d ? for a list of log items)\n" | |
2071 | "-hdachs c,h,s force hard disk 0 geometry (usually qemu can guess it)\n" | |
2072 | "-L path set the directory for the BIOS and VGA BIOS\n" | |
2073 | #ifdef USE_CODE_COPY | |
2074 | "-no-code-copy disable code copy acceleration\n" | |
2075 | #endif | |
2076 | #ifdef TARGET_I386 | |
2077 | "-isa simulate an ISA-only system (default is PCI system)\n" | |
2078 | #endif | |
2079 | "\n" | |
2080 | "During emulation, use C-a h to get terminal commands:\n", | |
2081 | #ifdef CONFIG_SOFTMMU | |
2082 | "qemu", | |
2083 | #else | |
2084 | "qemu-fast", | |
2085 | #endif | |
2086 | DEFAULT_RAM_SIZE, | |
2087 | DEFAULT_NETWORK_SCRIPT, | |
2088 | DEFAULT_GDBSTUB_PORT, | |
2089 | "/tmp/qemu.log"); | |
2090 | term_print_help(); | |
2091 | #ifndef CONFIG_SOFTMMU | |
2092 | printf("\n" | |
2093 | "NOTE: this version of QEMU is faster but it needs slightly patched OSes to\n" | |
2094 | "work. Please use the 'qemu' executable to have a more accurate (but slower)\n" | |
2095 | "PC emulation.\n"); | |
2096 | #endif | |
2097 | exit(1); | |
2098 | } | |
2099 | ||
2100 | #define HAS_ARG 0x0001 | |
2101 | ||
2102 | enum { | |
2103 | QEMU_OPTION_h, | |
2104 | ||
2105 | QEMU_OPTION_fda, | |
2106 | QEMU_OPTION_fdb, | |
2107 | QEMU_OPTION_hda, | |
2108 | QEMU_OPTION_hdb, | |
2109 | QEMU_OPTION_hdc, | |
2110 | QEMU_OPTION_hdd, | |
2111 | QEMU_OPTION_cdrom, | |
2112 | QEMU_OPTION_boot, | |
2113 | QEMU_OPTION_snapshot, | |
2114 | QEMU_OPTION_m, | |
2115 | QEMU_OPTION_nographic, | |
2116 | QEMU_OPTION_enable_audio, | |
2117 | ||
2118 | QEMU_OPTION_nics, | |
2119 | QEMU_OPTION_macaddr, | |
2120 | QEMU_OPTION_n, | |
2121 | QEMU_OPTION_tun_fd, | |
2122 | QEMU_OPTION_user_net, | |
2123 | QEMU_OPTION_dummy_net, | |
2124 | ||
2125 | QEMU_OPTION_kernel, | |
2126 | QEMU_OPTION_append, | |
2127 | QEMU_OPTION_initrd, | |
2128 | ||
2129 | QEMU_OPTION_S, | |
2130 | QEMU_OPTION_s, | |
2131 | QEMU_OPTION_p, | |
2132 | QEMU_OPTION_d, | |
2133 | QEMU_OPTION_hdachs, | |
2134 | QEMU_OPTION_L, | |
2135 | QEMU_OPTION_no_code_copy, | |
2136 | QEMU_OPTION_pci, | |
2137 | QEMU_OPTION_isa, | |
2138 | QEMU_OPTION_prep, | |
2139 | QEMU_OPTION_localtime, | |
2140 | QEMU_OPTION_cirrusvga, | |
2141 | QEMU_OPTION_g, | |
2142 | }; | |
2143 | ||
2144 | typedef struct QEMUOption { | |
2145 | const char *name; | |
2146 | int flags; | |
2147 | int index; | |
2148 | } QEMUOption; | |
2149 | ||
2150 | const QEMUOption qemu_options[] = { | |
2151 | { "h", 0, QEMU_OPTION_h }, | |
2152 | ||
2153 | { "fda", HAS_ARG, QEMU_OPTION_fda }, | |
2154 | { "fdb", HAS_ARG, QEMU_OPTION_fdb }, | |
2155 | { "hda", HAS_ARG, QEMU_OPTION_hda }, | |
2156 | { "hdb", HAS_ARG, QEMU_OPTION_hdb }, | |
2157 | { "hdc", HAS_ARG, QEMU_OPTION_hdc }, | |
2158 | { "hdd", HAS_ARG, QEMU_OPTION_hdd }, | |
2159 | { "cdrom", HAS_ARG, QEMU_OPTION_cdrom }, | |
2160 | { "boot", HAS_ARG, QEMU_OPTION_boot }, | |
2161 | { "snapshot", 0, QEMU_OPTION_snapshot }, | |
2162 | { "m", HAS_ARG, QEMU_OPTION_m }, | |
2163 | { "nographic", 0, QEMU_OPTION_nographic }, | |
2164 | { "enable-audio", 0, QEMU_OPTION_enable_audio }, | |
2165 | ||
2166 | { "nics", HAS_ARG, QEMU_OPTION_nics}, | |
2167 | { "macaddr", HAS_ARG, QEMU_OPTION_macaddr}, | |
2168 | { "n", HAS_ARG, QEMU_OPTION_n }, | |
2169 | { "tun-fd", HAS_ARG, QEMU_OPTION_tun_fd }, | |
2170 | #ifdef CONFIG_SLIRP | |
2171 | { "user-net", 0, QEMU_OPTION_user_net }, | |
2172 | #endif | |
2173 | { "dummy-net", 0, QEMU_OPTION_dummy_net }, | |
2174 | ||
2175 | { "kernel", HAS_ARG, QEMU_OPTION_kernel }, | |
2176 | { "append", HAS_ARG, QEMU_OPTION_append }, | |
2177 | { "initrd", HAS_ARG, QEMU_OPTION_initrd }, | |
2178 | ||
2179 | { "S", 0, QEMU_OPTION_S }, | |
2180 | { "s", 0, QEMU_OPTION_s }, | |
2181 | { "p", HAS_ARG, QEMU_OPTION_p }, | |
2182 | { "d", HAS_ARG, QEMU_OPTION_d }, | |
2183 | { "hdachs", HAS_ARG, QEMU_OPTION_hdachs }, | |
2184 | { "L", HAS_ARG, QEMU_OPTION_L }, | |
2185 | { "no-code-copy", 0, QEMU_OPTION_no_code_copy }, | |
2186 | #ifdef TARGET_PPC | |
2187 | { "prep", 0, QEMU_OPTION_prep }, | |
2188 | { "g", 1, QEMU_OPTION_g }, | |
2189 | #endif | |
2190 | { "localtime", 0, QEMU_OPTION_localtime }, | |
2191 | { "isa", 0, QEMU_OPTION_isa }, | |
2192 | ||
2193 | /* temporary options */ | |
2194 | { "pci", 0, QEMU_OPTION_pci }, | |
2195 | { "cirrusvga", 0, QEMU_OPTION_cirrusvga }, | |
2196 | { NULL }, | |
2197 | }; | |
2198 | ||
2199 | #if defined (TARGET_I386) && defined(USE_CODE_COPY) | |
2200 | ||
2201 | /* this stack is only used during signal handling */ | |
2202 | #define SIGNAL_STACK_SIZE 32768 | |
2203 | ||
2204 | static uint8_t *signal_stack; | |
2205 | ||
2206 | #endif | |
2207 | ||
2208 | #define NET_IF_TUN 0 | |
2209 | #define NET_IF_USER 1 | |
2210 | #define NET_IF_DUMMY 2 | |
2211 | ||
2212 | int main(int argc, char **argv) | |
2213 | { | |
2214 | #ifdef CONFIG_GDBSTUB | |
2215 | int use_gdbstub, gdbstub_port; | |
2216 | #endif | |
2217 | int i, has_cdrom; | |
2218 | int snapshot, linux_boot; | |
2219 | CPUState *env; | |
2220 | const char *initrd_filename; | |
2221 | const char *hd_filename[MAX_DISKS], *fd_filename[MAX_FD]; | |
2222 | const char *kernel_filename, *kernel_cmdline; | |
2223 | DisplayState *ds = &display_state; | |
2224 | int cyls, heads, secs; | |
2225 | int start_emulation = 1; | |
2226 | uint8_t macaddr[6]; | |
2227 | int net_if_type, nb_tun_fds, tun_fds[MAX_NICS]; | |
2228 | int optind; | |
2229 | const char *r, *optarg; | |
2230 | ||
2231 | #if !defined(CONFIG_SOFTMMU) | |
2232 | /* we never want that malloc() uses mmap() */ | |
2233 | mallopt(M_MMAP_THRESHOLD, 4096 * 1024); | |
2234 | #endif | |
2235 | initrd_filename = NULL; | |
2236 | for(i = 0; i < MAX_FD; i++) | |
2237 | fd_filename[i] = NULL; | |
2238 | for(i = 0; i < MAX_DISKS; i++) | |
2239 | hd_filename[i] = NULL; | |
2240 | ram_size = DEFAULT_RAM_SIZE * 1024 * 1024; | |
2241 | vga_ram_size = VGA_RAM_SIZE; | |
2242 | bios_size = BIOS_SIZE; | |
2243 | pstrcpy(network_script, sizeof(network_script), DEFAULT_NETWORK_SCRIPT); | |
2244 | #ifdef CONFIG_GDBSTUB | |
2245 | use_gdbstub = 0; | |
2246 | gdbstub_port = DEFAULT_GDBSTUB_PORT; | |
2247 | #endif | |
2248 | snapshot = 0; | |
2249 | nographic = 0; | |
2250 | kernel_filename = NULL; | |
2251 | kernel_cmdline = ""; | |
2252 | has_cdrom = 1; | |
2253 | cyls = heads = secs = 0; | |
2254 | ||
2255 | nb_tun_fds = 0; | |
2256 | net_if_type = -1; | |
2257 | nb_nics = 1; | |
2258 | /* default mac address of the first network interface */ | |
2259 | macaddr[0] = 0x52; | |
2260 | macaddr[1] = 0x54; | |
2261 | macaddr[2] = 0x00; | |
2262 | macaddr[3] = 0x12; | |
2263 | macaddr[4] = 0x34; | |
2264 | macaddr[5] = 0x56; | |
2265 | ||
2266 | optind = 1; | |
2267 | for(;;) { | |
2268 | if (optind >= argc) | |
2269 | break; | |
2270 | r = argv[optind]; | |
2271 | if (r[0] != '-') { | |
2272 | hd_filename[0] = argv[optind++]; | |
2273 | } else { | |
2274 | const QEMUOption *popt; | |
2275 | ||
2276 | optind++; | |
2277 | popt = qemu_options; | |
2278 | for(;;) { | |
2279 | if (!popt->name) { | |
2280 | fprintf(stderr, "%s: invalid option -- '%s'\n", | |
2281 | argv[0], r); | |
2282 | exit(1); | |
2283 | } | |
2284 | if (!strcmp(popt->name, r + 1)) | |
2285 | break; | |
2286 | popt++; | |
2287 | } | |
2288 | if (popt->flags & HAS_ARG) { | |
2289 | if (optind >= argc) { | |
2290 | fprintf(stderr, "%s: option '%s' requires an argument\n", | |
2291 | argv[0], r); | |
2292 | exit(1); | |
2293 | } | |
2294 | optarg = argv[optind++]; | |
2295 | } else { | |
2296 | optarg = NULL; | |
2297 | } | |
2298 | ||
2299 | switch(popt->index) { | |
2300 | case QEMU_OPTION_initrd: | |
2301 | initrd_filename = optarg; | |
2302 | break; | |
2303 | case QEMU_OPTION_hda: | |
2304 | hd_filename[0] = optarg; | |
2305 | break; | |
2306 | case QEMU_OPTION_hdb: | |
2307 | hd_filename[1] = optarg; | |
2308 | break; | |
2309 | case QEMU_OPTION_snapshot: | |
2310 | snapshot = 1; | |
2311 | break; | |
2312 | case QEMU_OPTION_hdachs: | |
2313 | { | |
2314 | const char *p; | |
2315 | p = optarg; | |
2316 | cyls = strtol(p, (char **)&p, 0); | |
2317 | if (*p != ',') | |
2318 | goto chs_fail; | |
2319 | p++; | |
2320 | heads = strtol(p, (char **)&p, 0); | |
2321 | if (*p != ',') | |
2322 | goto chs_fail; | |
2323 | p++; | |
2324 | secs = strtol(p, (char **)&p, 0); | |
2325 | if (*p != '\0') { | |
2326 | chs_fail: | |
2327 | cyls = 0; | |
2328 | } | |
2329 | } | |
2330 | break; | |
2331 | case QEMU_OPTION_nographic: | |
2332 | nographic = 1; | |
2333 | break; | |
2334 | case QEMU_OPTION_kernel: | |
2335 | kernel_filename = optarg; | |
2336 | break; | |
2337 | case QEMU_OPTION_append: | |
2338 | kernel_cmdline = optarg; | |
2339 | break; | |
2340 | case QEMU_OPTION_tun_fd: | |
2341 | { | |
2342 | const char *p; | |
2343 | int fd; | |
2344 | net_if_type = NET_IF_TUN; | |
2345 | if (nb_tun_fds < MAX_NICS) { | |
2346 | fd = strtol(optarg, (char **)&p, 0); | |
2347 | if (*p != '\0') { | |
2348 | fprintf(stderr, "qemu: invalid fd for network interface %d\n", nb_tun_fds); | |
2349 | exit(1); | |
2350 | } | |
2351 | tun_fds[nb_tun_fds++] = fd; | |
2352 | } | |
2353 | } | |
2354 | break; | |
2355 | case QEMU_OPTION_hdc: | |
2356 | hd_filename[2] = optarg; | |
2357 | has_cdrom = 0; | |
2358 | break; | |
2359 | case QEMU_OPTION_hdd: | |
2360 | hd_filename[3] = optarg; | |
2361 | break; | |
2362 | case QEMU_OPTION_cdrom: | |
2363 | hd_filename[2] = optarg; | |
2364 | has_cdrom = 1; | |
2365 | break; | |
2366 | case QEMU_OPTION_boot: | |
2367 | boot_device = optarg[0]; | |
2368 | if (boot_device != 'a' && boot_device != 'b' && | |
2369 | boot_device != 'c' && boot_device != 'd') { | |
2370 | fprintf(stderr, "qemu: invalid boot device '%c'\n", boot_device); | |
2371 | exit(1); | |
2372 | } | |
2373 | break; | |
2374 | case QEMU_OPTION_fda: | |
2375 | fd_filename[0] = optarg; | |
2376 | break; | |
2377 | case QEMU_OPTION_fdb: | |
2378 | fd_filename[1] = optarg; | |
2379 | break; | |
2380 | case QEMU_OPTION_no_code_copy: | |
2381 | code_copy_enabled = 0; | |
2382 | break; | |
2383 | case QEMU_OPTION_nics: | |
2384 | nb_nics = atoi(optarg); | |
2385 | if (nb_nics < 0 || nb_nics > MAX_NICS) { | |
2386 | fprintf(stderr, "qemu: invalid number of network interfaces\n"); | |
2387 | exit(1); | |
2388 | } | |
2389 | break; | |
2390 | case QEMU_OPTION_macaddr: | |
2391 | { | |
2392 | const char *p; | |
2393 | int i; | |
2394 | p = optarg; | |
2395 | for(i = 0; i < 6; i++) { | |
2396 | macaddr[i] = strtol(p, (char **)&p, 16); | |
2397 | if (i == 5) { | |
2398 | if (*p != '\0') | |
2399 | goto macaddr_error; | |
2400 | } else { | |
2401 | if (*p != ':') { | |
2402 | macaddr_error: | |
2403 | fprintf(stderr, "qemu: invalid syntax for ethernet address\n"); | |
2404 | exit(1); | |
2405 | } | |
2406 | p++; | |
2407 | } | |
2408 | } | |
2409 | } | |
2410 | break; | |
2411 | case QEMU_OPTION_user_net: | |
2412 | net_if_type = NET_IF_USER; | |
2413 | break; | |
2414 | case QEMU_OPTION_dummy_net: | |
2415 | net_if_type = NET_IF_DUMMY; | |
2416 | break; | |
2417 | case QEMU_OPTION_enable_audio: | |
2418 | audio_enabled = 1; | |
2419 | break; | |
2420 | case QEMU_OPTION_h: | |
2421 | help(); | |
2422 | break; | |
2423 | case QEMU_OPTION_m: | |
2424 | ram_size = atoi(optarg) * 1024 * 1024; | |
2425 | if (ram_size <= 0) | |
2426 | help(); | |
2427 | if (ram_size > PHYS_RAM_MAX_SIZE) { | |
2428 | fprintf(stderr, "qemu: at most %d MB RAM can be simulated\n", | |
2429 | PHYS_RAM_MAX_SIZE / (1024 * 1024)); | |
2430 | exit(1); | |
2431 | } | |
2432 | break; | |
2433 | case QEMU_OPTION_d: | |
2434 | { | |
2435 | int mask; | |
2436 | CPULogItem *item; | |
2437 | ||
2438 | mask = cpu_str_to_log_mask(optarg); | |
2439 | if (!mask) { | |
2440 | printf("Log items (comma separated):\n"); | |
2441 | for(item = cpu_log_items; item->mask != 0; item++) { | |
2442 | printf("%-10s %s\n", item->name, item->help); | |
2443 | } | |
2444 | exit(1); | |
2445 | } | |
2446 | cpu_set_log(mask); | |
2447 | } | |
2448 | break; | |
2449 | case QEMU_OPTION_n: | |
2450 | pstrcpy(network_script, sizeof(network_script), optarg); | |
2451 | break; | |
2452 | #ifdef CONFIG_GDBSTUB | |
2453 | case QEMU_OPTION_s: | |
2454 | use_gdbstub = 1; | |
2455 | break; | |
2456 | case QEMU_OPTION_p: | |
2457 | gdbstub_port = atoi(optarg); | |
2458 | break; | |
2459 | #endif | |
2460 | case QEMU_OPTION_L: | |
2461 | bios_dir = optarg; | |
2462 | break; | |
2463 | case QEMU_OPTION_S: | |
2464 | start_emulation = 0; | |
2465 | break; | |
2466 | case QEMU_OPTION_pci: | |
2467 | pci_enabled = 1; | |
2468 | break; | |
2469 | case QEMU_OPTION_isa: | |
2470 | pci_enabled = 0; | |
2471 | break; | |
2472 | case QEMU_OPTION_prep: | |
2473 | prep_enabled = 1; | |
2474 | break; | |
2475 | case QEMU_OPTION_localtime: | |
2476 | rtc_utc = 0; | |
2477 | break; | |
2478 | case QEMU_OPTION_cirrusvga: | |
2479 | cirrus_vga_enabled = 1; | |
2480 | break; | |
2481 | case QEMU_OPTION_g: | |
2482 | { | |
2483 | const char *p; | |
2484 | int w, h, depth; | |
2485 | p = optarg; | |
2486 | w = strtol(p, (char **)&p, 10); | |
2487 | if (w <= 0) { | |
2488 | graphic_error: | |
2489 | fprintf(stderr, "qemu: invalid resolution or depth\n"); | |
2490 | exit(1); | |
2491 | } | |
2492 | if (*p != 'x') | |
2493 | goto graphic_error; | |
2494 | p++; | |
2495 | h = strtol(p, (char **)&p, 10); | |
2496 | if (h <= 0) | |
2497 | goto graphic_error; | |
2498 | if (*p == 'x') { | |
2499 | p++; | |
2500 | depth = strtol(p, (char **)&p, 10); | |
2501 | if (depth != 8 && depth != 15 && depth != 16 && | |
2502 | depth != 24 && depth != 32) | |
2503 | goto graphic_error; | |
2504 | } else if (*p == '\0') { | |
2505 | depth = graphic_depth; | |
2506 | } else { | |
2507 | goto graphic_error; | |
2508 | } | |
2509 | ||
2510 | graphic_width = w; | |
2511 | graphic_height = h; | |
2512 | graphic_depth = depth; | |
2513 | } | |
2514 | break; | |
2515 | } | |
2516 | } | |
2517 | } | |
2518 | ||
2519 | linux_boot = (kernel_filename != NULL); | |
2520 | ||
2521 | if (!linux_boot && hd_filename[0] == '\0' && hd_filename[2] == '\0' && | |
2522 | fd_filename[0] == '\0') | |
2523 | help(); | |
2524 | ||
2525 | /* boot to cd by default if no hard disk */ | |
2526 | if (hd_filename[0] == '\0' && boot_device == 'c') { | |
2527 | if (fd_filename[0] != '\0') | |
2528 | boot_device = 'a'; | |
2529 | else | |
2530 | boot_device = 'd'; | |
2531 | } | |
2532 | ||
2533 | #if !defined(CONFIG_SOFTMMU) | |
2534 | /* must avoid mmap() usage of glibc by setting a buffer "by hand" */ | |
2535 | { | |
2536 | static uint8_t stdout_buf[4096]; | |
2537 | setvbuf(stdout, stdout_buf, _IOLBF, sizeof(stdout_buf)); | |
2538 | } | |
2539 | #else | |
2540 | setvbuf(stdout, NULL, _IOLBF, 0); | |
2541 | #endif | |
2542 | ||
2543 | /* init host network redirectors */ | |
2544 | if (net_if_type == -1) { | |
2545 | net_if_type = NET_IF_TUN; | |
2546 | #if defined(CONFIG_SLIRP) | |
2547 | if (access(network_script, R_OK) < 0) { | |
2548 | net_if_type = NET_IF_USER; | |
2549 | } | |
2550 | #endif | |
2551 | } | |
2552 | ||
2553 | for(i = 0; i < nb_nics; i++) { | |
2554 | NetDriverState *nd = &nd_table[i]; | |
2555 | nd->index = i; | |
2556 | /* init virtual mac address */ | |
2557 | nd->macaddr[0] = macaddr[0]; | |
2558 | nd->macaddr[1] = macaddr[1]; | |
2559 | nd->macaddr[2] = macaddr[2]; | |
2560 | nd->macaddr[3] = macaddr[3]; | |
2561 | nd->macaddr[4] = macaddr[4]; | |
2562 | nd->macaddr[5] = macaddr[5] + i; | |
2563 | switch(net_if_type) { | |
2564 | #if defined(CONFIG_SLIRP) | |
2565 | case NET_IF_USER: | |
2566 | net_slirp_init(nd); | |
2567 | break; | |
2568 | #endif | |
2569 | #if !defined(_WIN32) | |
2570 | case NET_IF_TUN: | |
2571 | if (i < nb_tun_fds) { | |
2572 | net_fd_init(nd, tun_fds[i]); | |
2573 | } else { | |
2574 | if (net_tun_init(nd) < 0) | |
2575 | net_dummy_init(nd); | |
2576 | } | |
2577 | break; | |
2578 | #endif | |
2579 | case NET_IF_DUMMY: | |
2580 | default: | |
2581 | net_dummy_init(nd); | |
2582 | break; | |
2583 | } | |
2584 | } | |
2585 | ||
2586 | /* init the memory */ | |
2587 | phys_ram_size = ram_size + vga_ram_size + bios_size; | |
2588 | ||
2589 | #ifdef CONFIG_SOFTMMU | |
2590 | #ifdef _BSD | |
2591 | /* mallocs are always aligned on BSD. */ | |
2592 | phys_ram_base = malloc(phys_ram_size); | |
2593 | #else | |
2594 | phys_ram_base = memalign(TARGET_PAGE_SIZE, phys_ram_size); | |
2595 | #endif | |
2596 | if (!phys_ram_base) { | |
2597 | fprintf(stderr, "Could not allocate physical memory\n"); | |
2598 | exit(1); | |
2599 | } | |
2600 | #else | |
2601 | /* as we must map the same page at several addresses, we must use | |
2602 | a fd */ | |
2603 | { | |
2604 | const char *tmpdir; | |
2605 | ||
2606 | tmpdir = getenv("QEMU_TMPDIR"); | |
2607 | if (!tmpdir) | |
2608 | tmpdir = "/tmp"; | |
2609 | snprintf(phys_ram_file, sizeof(phys_ram_file), "%s/vlXXXXXX", tmpdir); | |
2610 | if (mkstemp(phys_ram_file) < 0) { | |
2611 | fprintf(stderr, "Could not create temporary memory file '%s'\n", | |
2612 | phys_ram_file); | |
2613 | exit(1); | |
2614 | } | |
2615 | phys_ram_fd = open(phys_ram_file, O_CREAT | O_TRUNC | O_RDWR, 0600); | |
2616 | if (phys_ram_fd < 0) { | |
2617 | fprintf(stderr, "Could not open temporary memory file '%s'\n", | |
2618 | phys_ram_file); | |
2619 | exit(1); | |
2620 | } | |
2621 | ftruncate(phys_ram_fd, phys_ram_size); | |
2622 | unlink(phys_ram_file); | |
2623 | phys_ram_base = mmap(get_mmap_addr(phys_ram_size), | |
2624 | phys_ram_size, | |
2625 | PROT_WRITE | PROT_READ, MAP_SHARED | MAP_FIXED, | |
2626 | phys_ram_fd, 0); | |
2627 | if (phys_ram_base == MAP_FAILED) { | |
2628 | fprintf(stderr, "Could not map physical memory\n"); | |
2629 | exit(1); | |
2630 | } | |
2631 | } | |
2632 | #endif | |
2633 | ||
2634 | /* we always create the cdrom drive, even if no disk is there */ | |
2635 | if (has_cdrom) { | |
2636 | bs_table[2] = bdrv_new("cdrom"); | |
2637 | bdrv_set_type_hint(bs_table[2], BDRV_TYPE_CDROM); | |
2638 | } | |
2639 | ||
2640 | /* open the virtual block devices */ | |
2641 | for(i = 0; i < MAX_DISKS; i++) { | |
2642 | if (hd_filename[i]) { | |
2643 | if (!bs_table[i]) { | |
2644 | char buf[64]; | |
2645 | snprintf(buf, sizeof(buf), "hd%c", i + 'a'); | |
2646 | bs_table[i] = bdrv_new(buf); | |
2647 | } | |
2648 | if (bdrv_open(bs_table[i], hd_filename[i], snapshot) < 0) { | |
2649 | fprintf(stderr, "qemu: could not open hard disk image '%s\n", | |
2650 | hd_filename[i]); | |
2651 | exit(1); | |
2652 | } | |
2653 | if (i == 0 && cyls != 0) | |
2654 | bdrv_set_geometry_hint(bs_table[i], cyls, heads, secs); | |
2655 | } | |
2656 | } | |
2657 | ||
2658 | /* we always create at least one floppy disk */ | |
2659 | fd_table[0] = bdrv_new("fda"); | |
2660 | bdrv_set_type_hint(fd_table[0], BDRV_TYPE_FLOPPY); | |
2661 | ||
2662 | for(i = 0; i < MAX_FD; i++) { | |
2663 | if (fd_filename[i]) { | |
2664 | if (!fd_table[i]) { | |
2665 | char buf[64]; | |
2666 | snprintf(buf, sizeof(buf), "fd%c", i + 'a'); | |
2667 | fd_table[i] = bdrv_new(buf); | |
2668 | bdrv_set_type_hint(fd_table[i], BDRV_TYPE_FLOPPY); | |
2669 | } | |
2670 | if (fd_filename[i] != '\0') { | |
2671 | if (bdrv_open(fd_table[i], fd_filename[i], snapshot) < 0) { | |
2672 | fprintf(stderr, "qemu: could not open floppy disk image '%s'\n", | |
2673 | fd_filename[i]); | |
2674 | exit(1); | |
2675 | } | |
2676 | } | |
2677 | } | |
2678 | } | |
2679 | ||
2680 | /* init CPU state */ | |
2681 | env = cpu_init(); | |
2682 | global_env = env; | |
2683 | cpu_single_env = env; | |
2684 | ||
2685 | register_savevm("timer", 0, 1, timer_save, timer_load, env); | |
2686 | register_savevm("cpu", 0, 1, cpu_save, cpu_load, env); | |
2687 | register_savevm("ram", 0, 1, ram_save, ram_load, NULL); | |
2688 | qemu_register_reset(main_cpu_reset, global_env); | |
2689 | ||
2690 | init_ioports(); | |
2691 | cpu_calibrate_ticks(); | |
2692 | ||
2693 | /* terminal init */ | |
2694 | if (nographic) { | |
2695 | dumb_display_init(ds); | |
2696 | } else { | |
2697 | #ifdef CONFIG_SDL | |
2698 | sdl_display_init(ds); | |
2699 | #else | |
2700 | dumb_display_init(ds); | |
2701 | #endif | |
2702 | } | |
2703 | ||
2704 | /* setup cpu signal handlers for MMU / self modifying code handling */ | |
2705 | #if !defined(CONFIG_SOFTMMU) | |
2706 | ||
2707 | #if defined (TARGET_I386) && defined(USE_CODE_COPY) | |
2708 | { | |
2709 | stack_t stk; | |
2710 | signal_stack = memalign(16, SIGNAL_STACK_SIZE); | |
2711 | stk.ss_sp = signal_stack; | |
2712 | stk.ss_size = SIGNAL_STACK_SIZE; | |
2713 | stk.ss_flags = 0; | |
2714 | ||
2715 | if (sigaltstack(&stk, NULL) < 0) { | |
2716 | perror("sigaltstack"); | |
2717 | exit(1); | |
2718 | } | |
2719 | } | |
2720 | #endif | |
2721 | { | |
2722 | struct sigaction act; | |
2723 | ||
2724 | sigfillset(&act.sa_mask); | |
2725 | act.sa_flags = SA_SIGINFO; | |
2726 | #if defined (TARGET_I386) && defined(USE_CODE_COPY) | |
2727 | act.sa_flags |= SA_ONSTACK; | |
2728 | #endif | |
2729 | act.sa_sigaction = host_segv_handler; | |
2730 | sigaction(SIGSEGV, &act, NULL); | |
2731 | sigaction(SIGBUS, &act, NULL); | |
2732 | #if defined (TARGET_I386) && defined(USE_CODE_COPY) | |
2733 | sigaction(SIGFPE, &act, NULL); | |
2734 | #endif | |
2735 | } | |
2736 | #endif | |
2737 | ||
2738 | #ifndef _WIN32 | |
2739 | { | |
2740 | struct sigaction act; | |
2741 | sigfillset(&act.sa_mask); | |
2742 | act.sa_flags = 0; | |
2743 | act.sa_handler = SIG_IGN; | |
2744 | sigaction(SIGPIPE, &act, NULL); | |
2745 | } | |
2746 | #endif | |
2747 | init_timers(); | |
2748 | ||
2749 | #if defined(TARGET_I386) | |
2750 | pc_init(ram_size, vga_ram_size, boot_device, | |
2751 | ds, fd_filename, snapshot, | |
2752 | kernel_filename, kernel_cmdline, initrd_filename); | |
2753 | #elif defined(TARGET_PPC) | |
2754 | ppc_init(ram_size, vga_ram_size, boot_device, | |
2755 | ds, fd_filename, snapshot, | |
2756 | kernel_filename, kernel_cmdline, initrd_filename); | |
2757 | #endif | |
2758 | ||
2759 | /* launched after the device init so that it can display or not a | |
2760 | banner */ | |
2761 | monitor_init(); | |
2762 | ||
2763 | gui_timer = qemu_new_timer(rt_clock, gui_update, NULL); | |
2764 | qemu_mod_timer(gui_timer, qemu_get_clock(rt_clock)); | |
2765 | ||
2766 | #ifdef CONFIG_GDBSTUB | |
2767 | if (use_gdbstub) { | |
2768 | if (gdbserver_start(gdbstub_port) < 0) { | |
2769 | fprintf(stderr, "Could not open gdbserver socket on port %d\n", | |
2770 | gdbstub_port); | |
2771 | exit(1); | |
2772 | } else { | |
2773 | printf("Waiting gdb connection on port %d\n", gdbstub_port); | |
2774 | } | |
2775 | } else | |
2776 | #endif | |
2777 | if (start_emulation) | |
2778 | { | |
2779 | vm_start(); | |
2780 | } | |
2781 | term_init(); | |
2782 | main_loop(); | |
2783 | quit_timers(); | |
2784 | return 0; | |
2785 | } |