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qemu-option.h include protectors
[mirror_qemu.git] / vl.c
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0824d6fc 1/*
80cabfad 2 * QEMU System Emulator
5fafdf24 3 *
68d0f70e 4 * Copyright (c) 2003-2008 Fabrice Bellard
5fafdf24 5 *
1df912cf
FB		 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.
0824d6fc 23 */
0824d6fc 24#include <unistd.h>
0824d6fc
FB		 25#include <fcntl.h>
26#include <signal.h>
27#include <time.h>
0824d6fc 28#include <errno.h>
67b915a5 29#include <sys/time.h>
c88676f8 30#include <zlib.h>
67b915a5 31
71e72a19 32/* Needed early for CONFIG_BSD etc. */
d40cdb10 33#include "config-host.h"
96555a96
BS		 34/* Needed early to override system queue definitions on BSD */
35#include "sys-queue.h"
d40cdb10 36
67b915a5 37#ifndef _WIN32
5cea8590 38#include <libgen.h>
0858532e 39#include <pwd.h>
67b915a5 40#include <sys/times.h>
f1510b2c 41#include <sys/wait.h>
67b915a5 42#include <termios.h>
67b915a5 43#include <sys/mman.h>
f1510b2c 44#include <sys/ioctl.h>
24646c7e 45#include <sys/resource.h>
f1510b2c 46#include <sys/socket.h>
c94c8d64 47#include <netinet/in.h>
24646c7e
BS		 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>
9d728e8c 56#include <dirent.h>
7c9d8e07 57#include <netdb.h>
cb4b976b 58#include <sys/select.h>
71e72a19 59#ifdef CONFIG_BSD
7d3505c5 60#include <sys/stat.h>
c5e97233 61#if defined(__FreeBSD__) || defined(__DragonFly__)
7d3505c5 62#include <libutil.h>
24646c7e
BS		 63#else
64#include <util.h>
128ab2ff 65#endif
5c40d2bd
TS		 66#elif defined (__GLIBC__) && defined (__FreeBSD_kernel__)
67#include <freebsd/stdlib.h>
7d3505c5 68#else
223f0d72 69#ifdef __linux__
7d3505c5
FB		 70#include <pty.h>
71#include <malloc.h>
fd872598 72#include <linux/rtc.h>
1889465a 73#include <sys/prctl.h>
bd494f4c
TS		 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
e57a8c0e 80#include <linux/ppdev.h>
5867c88a 81#include <linux/parport.h>
223f0d72
BS		 82#endif
83#ifdef __sun__
d5d10bc3
TS		 84#include <sys/stat.h>
85#include <sys/ethernet.h>
86#include <sys/sockio.h>
d5d10bc3
TS		 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>
67b915a5 97#endif
7d3505c5 98#endif
ec530c81 99#endif
67b915a5 100
9892fbfb
BS		 101#if defined(__OpenBSD__)
102#include <util.h>
103#endif
104
8a16d273
TS		 105#if defined(CONFIG_VDE)
106#include <libvdeplug.h>
107#endif
108
67b915a5 109#ifdef _WIN32
49dc768d 110#include <windows.h>
4fddf62a 111#include <mmsystem.h>
67b915a5
FB		 112#endif
113
73332e5c 114#ifdef CONFIG_SDL
59a36a2f 115#if defined(__APPLE__) || defined(main)
6693665a 116#include <SDL.h>
880fec5d 117int qemu_main(int argc, char **argv, char **envp);
118int main(int argc, char **argv)
119{
59a36a2f 120 return qemu_main(argc, argv, NULL);
880fec5d 121}
122#undef main
123#define main qemu_main
96bcd4f8 124#endif
73332e5c 125#endif /* CONFIG_SDL */
0824d6fc 126
5b0753e0
FB		 127#ifdef CONFIG_COCOA
128#undef main
129#define main qemu_main
130#endif /* CONFIG_COCOA */
131
511d2b14
BS		 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"
9dd986cc 141#include "hw/watchdog.h"
b6f6e3d3 142#include "hw/smbios.h"
e37630ca 143#include "hw/xen.h"
bd3c948d 144#include "hw/qdev.h"
5ef4efa4 145#include "bt-host.h"
511d2b14
BS		 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"
a718acec 155#include "dma.h"
511d2b14
BS		 156#include "audio/audio.h"
157#include "migration.h"
158#include "kvm.h"
159#include "balloon.h"
d3f24367 160#include "qemu-option.h"
7282a033 161#include "qemu-config.h"
511d2b14 162
0824d6fc 163#include "disas.h"
fc01f7e7 164
8a7ddc38 165#include "exec-all.h"
0824d6fc 166
511d2b14
BS		 167#include "qemu_socket.h"
168
d918f23e 169#include "slirp/libslirp.h"
511d2b14 170
9dc63a1e
BS		 171//#define DEBUG_NET
172//#define DEBUG_SLIRP
330d0414 173
1bfe856e 174#define DEFAULT_RAM_SIZE 128
313aa567 175
ddd9bbd9
JK		 176/* Maximum number of monitor devices */
177#define MAX_MONITOR_DEVICES 10
178
5cea8590 179static const char *data_dir;
1192dad8 180const char *bios_name = NULL;
e4bcb14c 181/* Note: drives_table[MAX_DRIVES] is a dummy block driver if none available
faea38e7 182 to store the VM snapshots */
751c6a17 183struct drivelist drives = TAILQ_HEAD_INITIALIZER(drives);
3b0ba927 184struct driveoptlist driveopts = TAILQ_HEAD_INITIALIZER(driveopts);
cb5a7aa8 185enum vga_retrace_method vga_retrace_method = VGA_RETRACE_DUMB;
3023f332 186static DisplayState *display_state;
993fbfdb 187DisplayType display_type = DT_DEFAULT;
3d11d0eb 188const char* keyboard_layout = NULL;
313aa567 189int64_t ticks_per_sec;
00f82b8a 190ram_addr_t ram_size;
c4b1fcc0 191int nb_nics;
7c9d8e07 192NICInfo nd_table[MAX_NICS];
8a7ddc38 193int vm_running;
d399f677 194int autostart;
f6503059
AZ		 195static int rtc_utc = 1;
196static int rtc_date_offset = -1; /* -1 means no change */
86176759 197int vga_interface_type = VGA_CIRRUS;
d827220b
FB		 198#ifdef TARGET_SPARC
199int graphic_width = 1024;
200int graphic_height = 768;
eee0b836 201int graphic_depth = 8;
d827220b 202#else
1bfe856e
FB		 203int graphic_width = 800;
204int graphic_height = 600;
e9b137c2 205int graphic_depth = 15;
eee0b836 206#endif
dbed7e40 207static int full_screen = 0;
634a21f6 208#ifdef CONFIG_SDL
dbed7e40 209static int no_frame = 0;
634a21f6 210#endif
667accab 211int no_quit = 0;
8d11df9e 212CharDriverState *serial_hds[MAX_SERIAL_PORTS];
6508fe59 213CharDriverState *parallel_hds[MAX_PARALLEL_PORTS];
9ede2fde 214CharDriverState *virtcon_hds[MAX_VIRTIO_CONSOLES];
a09db21f
FB		 215#ifdef TARGET_I386
216int win2k_install_hack = 0;
73822ec8 217int rtc_td_hack = 0;
a09db21f 218#endif
bb36d470 219int usb_enabled = 0;
1b530a6d 220int singlestep = 0;
6a00d601 221int smp_cpus = 1;
6be68d7e 222int max_cpus = 0;
dc6b1c09
AP		 223int smp_cores = 1;
224int smp_threads = 1;
73fc9742 225const char *vnc_display;
6515b203 226int acpi_enabled = 1;
16b29ae1 227int no_hpet = 0;
52ca8d6a 228int fd_bootchk = 1;
d1beab82 229int no_reboot = 0;
b2f76161 230int no_shutdown = 0;
9467cd46 231int cursor_hide = 1;
a171fe39 232int graphic_rotate = 0;
6b35e7bf 233uint8_t irq0override = 1;
b9e82a59 234#ifndef _WIN32
71e3ceb8 235int daemonize = 0;
b9e82a59 236#endif
09aaa160 237const char *watchdog;
9ae02555
TS		 238const char *option_rom[MAX_OPTION_ROMS];
239int nb_option_roms;
8e71621f 240int semihosting_enabled = 0;
2b8f2d41
AZ		 241#ifdef TARGET_ARM
242int old_param = 0;
243#endif
c35734b2 244const char *qemu_name;
3780e197 245int alt_grab = 0;
95efd11c 246#if defined(TARGET_SPARC) || defined(TARGET_PPC)
66508601
BS		 247unsigned int nb_prom_envs = 0;
248const char *prom_envs[MAX_PROM_ENVS];
249#endif
95387491 250int boot_menu;
0824d6fc 251
268a362c
AL		 252int nb_numa_nodes;
253uint64_t node_mem[MAX_NODES];
254uint64_t node_cpumask[MAX_NODES];
255
ee5605e5
AZ		 256static CPUState *cur_cpu;
257static CPUState *next_cpu;
43b96858 258static int timer_alarm_pending = 1;
bf20dc07 259/* Conversion factor from emulated instructions to virtual clock ticks. */
2e70f6ef 260static int icount_time_shift;
bf20dc07 261/* Arbitrarily pick 1MIPS as the minimum allowable speed. */
2e70f6ef
PB		 262#define MAX_ICOUNT_SHIFT 10
263/* Compensate for varying guest execution speed. */
264static int64_t qemu_icount_bias;
dbed7e40
BS		 265static QEMUTimer *icount_rt_timer;
266static QEMUTimer *icount_vm_timer;
9043b62d 267static QEMUTimer *nographic_timer;
ee5605e5 268
8fcb1b90
BS		 269uint8_t qemu_uuid[16];
270
76e30d0f
JK		 271static QEMUBootSetHandler *boot_set_handler;
272static void *boot_set_opaque;
273
0824d6fc 274/***********************************************************/
26aa7d72
FB		 275/* x86 ISA bus support */
276
277target_phys_addr_t isa_mem_base = 0;
3de388f6 278PicState2 *isa_pic;
0824d6fc 279
0824d6fc 280/***********************************************************/
0824d6fc
FB		 281void hw_error(const char *fmt, ...)
282{
283 va_list ap;
6a00d601 284 CPUState *env;
0824d6fc
FB		 285
286 va_start(ap, fmt);
287 fprintf(stderr, "qemu: hardware error: ");
288 vfprintf(stderr, fmt, ap);
289 fprintf(stderr, "\n");
6a00d601
FB		 290 for(env = first_cpu; env != NULL; env = env->next_cpu) {
291 fprintf(stderr, "CPU #%d:\n", env->cpu_index);
0824d6fc 292#ifdef TARGET_I386
6a00d601 293 cpu_dump_state(env, stderr, fprintf, X86_DUMP_FPU);
c45886db 294#else
6a00d601 295 cpu_dump_state(env, stderr, fprintf, 0);
0824d6fc 296#endif
6a00d601 297 }
0824d6fc
FB		 298 va_end(ap);
299 abort();
300}
1889465a
AK		 301
302static void set_proc_name(const char *s)
303{
6ca8d0fd 304#if defined(__linux__) && defined(PR_SET_NAME)
1889465a
AK		 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}
df751fa8
AL		 315
316/***************/
317/* ballooning */
318
319static QEMUBalloonEvent *qemu_balloon_event;
320void *qemu_balloon_event_opaque;
321
322void qemu_add_balloon_handler(QEMUBalloonEvent *func, void *opaque)
323{
324 qemu_balloon_event = func;
325 qemu_balloon_event_opaque = opaque;
326}
327
328void qemu_balloon(ram_addr_t target)
329{
330 if (qemu_balloon_event)
331 qemu_balloon_event(qemu_balloon_event_opaque, target);
332}
333
334ram_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}
0824d6fc 340
63066f4f
FB		 341/***********************************************************/
342/* keyboard/mouse */
343
344static QEMUPutKBDEvent *qemu_put_kbd_event;
345static void *qemu_put_kbd_event_opaque;
455204eb
TS		 346static QEMUPutMouseEntry *qemu_put_mouse_event_head;
347static QEMUPutMouseEntry *qemu_put_mouse_event_current;
63066f4f
FB		 348
349void 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
455204eb
TS		 355QEMUPutMouseEntry *qemu_add_mouse_event_handler(QEMUPutMouseEvent *func,
356 void *opaque, int absolute,
357 const char *name)
63066f4f 358{
455204eb
TS		 359 QEMUPutMouseEntry *s, *cursor;
360
361 s = qemu_mallocz(sizeof(QEMUPutMouseEntry));
455204eb
TS		 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
384void 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);
63066f4f
FB		 415}
416
417void 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
424void kbd_mouse_event(int dx, int dy, int dz, int buttons_state)
425{
455204eb
TS		 426 QEMUPutMouseEvent *mouse_event;
427 void *mouse_event_opaque;
a171fe39 428 int width;
455204eb
TS		 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) {
a171fe39
AZ		 440 if (graphic_rotate) {
441 if (qemu_put_mouse_event_current->qemu_put_mouse_event_absolute)
442 width = 0x7fff;
443 else
b94ed577 444 width = graphic_width - 1;
a171fe39
AZ		 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);
63066f4f
FB		 450 }
451}
452
09b26c5e
FB		 453int kbd_mouse_is_absolute(void)
454{
455204eb
TS		 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
376253ec 461void do_info_mice(Monitor *mon)
455204eb
TS		 462{
463 QEMUPutMouseEntry *cursor;
464 int index = 0;
465
466 if (!qemu_put_mouse_event_head) {
376253ec 467 monitor_printf(mon, "No mouse devices connected\n");
455204eb
TS		 468 return;
469 }
470
376253ec 471 monitor_printf(mon, "Mouse devices available:\n");
455204eb
TS		 472 cursor = qemu_put_mouse_event_head;
473 while (cursor != NULL) {
376253ec
AL		 474 monitor_printf(mon, "%c Mouse #%d: %s\n",
475 (cursor == qemu_put_mouse_event_current ? '*' : ' '),
476 index, cursor->qemu_put_mouse_event_name);
455204eb
TS		 477 index++;
478 cursor = cursor->next;
479 }
480}
481
d54908a5 482void do_mouse_set(Monitor *mon, const QDict *qdict)
455204eb
TS		 483{
484 QEMUPutMouseEntry *cursor;
485 int i = 0;
d54908a5 486 int index = qdict_get_int(qdict, "index");
455204eb
TS		 487
488 if (!qemu_put_mouse_event_head) {
376253ec 489 monitor_printf(mon, "No mouse devices connected\n");
455204eb
TS		 490 return;
491 }
492
493 cursor = qemu_put_mouse_event_head;
494 while (cursor != NULL && index != i) {
495 i++;
496 cursor = cursor->next;
497 }
498
499 if (cursor != NULL)
500 qemu_put_mouse_event_current = cursor;
501 else
376253ec 502 monitor_printf(mon, "Mouse at given index not found\n");
09b26c5e
FB		 503}
504
1dce7c3c
FB		 505/* compute with 96 bit intermediate result: (a*b)/c */
506uint64_t muldiv64(uint64_t a, uint32_t b, uint32_t c)
0824d6fc 507{
1dce7c3c
FB		 508 union {
509 uint64_t ll;
510 struct {
e2542fe2 511#ifdef HOST_WORDS_BIGENDIAN
1dce7c3c
FB		 512 uint32_t high, low;
513#else
514 uint32_t low, high;
3b46e624 515#endif
1dce7c3c
FB		 516 } l;
517 } u, res;
518 uint64_t rl, rh;
0824d6fc 519
1dce7c3c
FB		 520 u.ll = a;
521 rl = (uint64_t)u.l.low * (uint64_t)b;
522 rh = (uint64_t)u.l.high * (uint64_t)b;
523 rh += (rl >> 32);
524 res.l.high = rh / c;
525 res.l.low = (((rh % c) << 32) + (rl & 0xffffffff)) / c;
526 return res.ll;
34865134
FB		 527}
528
1dce7c3c
FB		 529/***********************************************************/
530/* real time host monotonic timer */
34865134 531
1dce7c3c 532#define QEMU_TIMER_BASE 1000000000LL
34865134 533
1dce7c3c 534#ifdef WIN32
0824d6fc 535
1dce7c3c 536static int64_t clock_freq;
1115dde7 537
1dce7c3c 538static void init_get_clock(void)
1115dde7 539{
a8e5ac33
FB		 540 LARGE_INTEGER freq;
541 int ret;
1dce7c3c
FB		 542 ret = QueryPerformanceFrequency(&freq);
543 if (ret == 0) {
544 fprintf(stderr, "Could not calibrate ticks\n");
545 exit(1);
546 }
547 clock_freq = freq.QuadPart;
1115dde7
FB		 548}
549
1dce7c3c 550static int64_t get_clock(void)
b8076a74 551{
1dce7c3c
FB		 552 LARGE_INTEGER ti;
553 QueryPerformanceCounter(&ti);
554 return muldiv64(ti.QuadPart, QEMU_TIMER_BASE, clock_freq);
b8076a74
FB		 555}
556
1dce7c3c 557#else
90cb9493 558
1dce7c3c
FB		 559static int use_rt_clock;
560
561static void init_get_clock(void)
90cb9493 562{
1dce7c3c 563 use_rt_clock = 0;
c5e97233
BS		 564#if defined(__linux__) || (defined(__FreeBSD__) && __FreeBSD_version >= 500000) \
565 || defined(__DragonFly__)
1dce7c3c
FB		 566 {
567 struct timespec ts;
568 if (clock_gettime(CLOCK_MONOTONIC, &ts) == 0) {
569 use_rt_clock = 1;
570 }
571 }
572#endif
90cb9493
FB		 573}
574
1dce7c3c 575static int64_t get_clock(void)
fdbb4691 576{
c5e97233
BS		 577#if defined(__linux__) || (defined(__FreeBSD__) && __FreeBSD_version >= 500000) \
578 || defined(__DragonFly__)
1dce7c3c
FB		 579 if (use_rt_clock) {
580 struct timespec ts;
581 clock_gettime(CLOCK_MONOTONIC, &ts);
582 return ts.tv_sec * 1000000000LL + ts.tv_nsec;
5fafdf24 583 } else
fdbb4691 584#endif
1dce7c3c
FB		 585 {
586 /* XXX: using gettimeofday leads to problems if the date
587 changes, so it should be avoided. */
588 struct timeval tv;
589 gettimeofday(&tv, NULL);
590 return tv.tv_sec * 1000000000LL + (tv.tv_usec * 1000);
591 }
fdbb4691 592}
34865134
FB		 593#endif
594
2e70f6ef
PB		 595/* Return the virtual CPU time, based on the instruction counter. */
596static int64_t cpu_get_icount(void)
597{
598 int64_t icount;
599 CPUState *env = cpu_single_env;;
600 icount = qemu_icount;
601 if (env) {
602 if (!can_do_io(env))
603 fprintf(stderr, "Bad clock read\n");
604 icount -= (env->icount_decr.u16.low + env->icount_extra);
605 }
606 return qemu_icount_bias + (icount << icount_time_shift);
607}
608
1dce7c3c
FB		 609/***********************************************************/
610/* guest cycle counter */
611
eade0f19 612static int64_t cpu_ticks_prev;
34865134 613static int64_t cpu_ticks_offset;
1dce7c3c 614static int64_t cpu_clock_offset;
8a7ddc38 615static int cpu_ticks_enabled;
34865134 616
1dce7c3c
FB		 617/* return the host CPU cycle counter and handle stop/restart */
618int64_t cpu_get_ticks(void)
34865134 619{
2e70f6ef
PB		 620 if (use_icount) {
621 return cpu_get_icount();
622 }
8a7ddc38
FB		 623 if (!cpu_ticks_enabled) {
624 return cpu_ticks_offset;
625 } else {
eade0f19
FB		 626 int64_t ticks;
627 ticks = cpu_get_real_ticks();
628 if (cpu_ticks_prev > ticks) {
629 /* Note: non increasing ticks may happen if the host uses
630 software suspend */
631 cpu_ticks_offset += cpu_ticks_prev - ticks;
632 }
633 cpu_ticks_prev = ticks;
634 return ticks + cpu_ticks_offset;
8a7ddc38 635 }
34865134
FB		 636}
637
1dce7c3c
FB		 638/* return the host CPU monotonic timer and handle stop/restart */
639static int64_t cpu_get_clock(void)
640{
641 int64_t ti;
642 if (!cpu_ticks_enabled) {
643 return cpu_clock_offset;
644 } else {
645 ti = get_clock();
646 return ti + cpu_clock_offset;
647 }
648}
649
34865134
FB		 650/* enable cpu_get_ticks() */
651void cpu_enable_ticks(void)
652{
8a7ddc38
FB		 653 if (!cpu_ticks_enabled) {
654 cpu_ticks_offset -= cpu_get_real_ticks();
1dce7c3c 655 cpu_clock_offset -= get_clock();
8a7ddc38
FB		 656 cpu_ticks_enabled = 1;
657 }
34865134
FB		 658}
659
660/* disable cpu_get_ticks() : the clock is stopped. You must not call
661 cpu_get_ticks() after that. */
662void cpu_disable_ticks(void)
663{
8a7ddc38
FB		 664 if (cpu_ticks_enabled) {
665 cpu_ticks_offset = cpu_get_ticks();
1dce7c3c 666 cpu_clock_offset = cpu_get_clock();
8a7ddc38
FB		 667 cpu_ticks_enabled = 0;
668 }
34865134
FB		 669}
670
1dce7c3c
FB		 671/***********************************************************/
672/* timers */
5fafdf24 673
8a7ddc38
FB		 674#define QEMU_TIMER_REALTIME 0
675#define QEMU_TIMER_VIRTUAL 1
676
677struct QEMUClock {
678 int type;
679 /* XXX: add frequency */
680};
681
682struct QEMUTimer {
683 QEMUClock *clock;
684 int64_t expire_time;
685 QEMUTimerCB *cb;
686 void *opaque;
687 struct QEMUTimer *next;
688};
689
c8994013
TS		 690struct qemu_alarm_timer {
691 char const *name;
efe75411 692 unsigned int flags;
c8994013
TS		 693
694 int (*start)(struct qemu_alarm_timer *t);
695 void (*stop)(struct qemu_alarm_timer *t);
efe75411 696 void (*rearm)(struct qemu_alarm_timer *t);
c8994013
TS		 697 void *priv;
698};
699
efe75411 700#define ALARM_FLAG_DYNTICKS 0x1
d5d08334 701#define ALARM_FLAG_EXPIRED 0x2
efe75411
TS		 702
703static inline int alarm_has_dynticks(struct qemu_alarm_timer *t)
704{
e332340a 705 return t && (t->flags & ALARM_FLAG_DYNTICKS);
efe75411
TS		 706}
707
708static void qemu_rearm_alarm_timer(struct qemu_alarm_timer *t)
709{
710 if (!alarm_has_dynticks(t))
711 return;
712
713 t->rearm(t);
714}
715
716/* TODO: MIN_TIMER_REARM_US should be optimized */
717#define MIN_TIMER_REARM_US 250
718
c8994013 719static struct qemu_alarm_timer *alarm_timer;
8a7ddc38 720
40c3bac3 721#ifdef _WIN32
c8994013
TS		 722
723struct qemu_alarm_win32 {
724 MMRESULT timerId;
c8994013 725 unsigned int period;
ef28c4b0 726} alarm_win32_data = {0, -1};
c8994013
TS		 727
728static int win32_start_timer(struct qemu_alarm_timer *t);
729static void win32_stop_timer(struct qemu_alarm_timer *t);
efe75411 730static void win32_rearm_timer(struct qemu_alarm_timer *t);
c8994013 731
40c3bac3 732#else
c8994013
TS		 733
734static int unix_start_timer(struct qemu_alarm_timer *t);
735static void unix_stop_timer(struct qemu_alarm_timer *t);
736
231c6586
TS		 737#ifdef __linux__
738
efe75411
TS		 739static int dynticks_start_timer(struct qemu_alarm_timer *t);
740static void dynticks_stop_timer(struct qemu_alarm_timer *t);
741static void dynticks_rearm_timer(struct qemu_alarm_timer *t);
742
c40ec5a9
TS		 743static int hpet_start_timer(struct qemu_alarm_timer *t);
744static void hpet_stop_timer(struct qemu_alarm_timer *t);
745
c8994013
TS		 746static int rtc_start_timer(struct qemu_alarm_timer *t);
747static void rtc_stop_timer(struct qemu_alarm_timer *t);
748
efe75411 749#endif /* __linux__ */
8a7ddc38 750
c8994013
TS		 751#endif /* _WIN32 */
752
2e70f6ef 753/* Correlation between real and virtual time is always going to be
bf20dc07 754 fairly approximate, so ignore small variation.
2e70f6ef
PB		 755 When the guest is idle real and virtual time will be aligned in
756 the IO wait loop. */
757#define ICOUNT_WOBBLE (QEMU_TIMER_BASE / 10)
758
759static void icount_adjust(void)
760{
761 int64_t cur_time;
762 int64_t cur_icount;
763 int64_t delta;
764 static int64_t last_delta;
765 /* If the VM is not running, then do nothing. */
766 if (!vm_running)
767 return;
768
769 cur_time = cpu_get_clock();
770 cur_icount = qemu_get_clock(vm_clock);
771 delta = cur_icount - cur_time;
772 /* FIXME: This is a very crude algorithm, somewhat prone to oscillation. */
773 if (delta > 0
774 && last_delta + ICOUNT_WOBBLE < delta * 2
775 && icount_time_shift > 0) {
776 /* The guest is getting too far ahead. Slow time down. */
777 icount_time_shift--;
778 }
779 if (delta < 0
780 && last_delta - ICOUNT_WOBBLE > delta * 2
781 && icount_time_shift < MAX_ICOUNT_SHIFT) {
782 /* The guest is getting too far behind. Speed time up. */
783 icount_time_shift++;
784 }
785 last_delta = delta;
786 qemu_icount_bias = cur_icount - (qemu_icount << icount_time_shift);
787}
788
789static void icount_adjust_rt(void * opaque)
790{
791 qemu_mod_timer(icount_rt_timer,
792 qemu_get_clock(rt_clock) + 1000);
793 icount_adjust();
794}
795
796static void icount_adjust_vm(void * opaque)
797{
798 qemu_mod_timer(icount_vm_timer,
799 qemu_get_clock(vm_clock) + QEMU_TIMER_BASE / 10);
800 icount_adjust();
801}
802
803static void init_icount_adjust(void)
804{
805 /* Have both realtime and virtual time triggers for speed adjustment.
806 The realtime trigger catches emulated time passing too slowly,
807 the virtual time trigger catches emulated time passing too fast.
808 Realtime triggers occur even when idle, so use them less frequently
809 than VM triggers. */
810 icount_rt_timer = qemu_new_timer(rt_clock, icount_adjust_rt, NULL);
811 qemu_mod_timer(icount_rt_timer,
812 qemu_get_clock(rt_clock) + 1000);
813 icount_vm_timer = qemu_new_timer(vm_clock, icount_adjust_vm, NULL);
814 qemu_mod_timer(icount_vm_timer,
815 qemu_get_clock(vm_clock) + QEMU_TIMER_BASE / 10);
816}
817
c8994013 818static struct qemu_alarm_timer alarm_timers[] = {
efe75411 819#ifndef _WIN32
231c6586 820#ifdef __linux__
efe75411
TS		 821 {"dynticks", ALARM_FLAG_DYNTICKS, dynticks_start_timer,
822 dynticks_stop_timer, dynticks_rearm_timer, NULL},
c40ec5a9 823 /* HPET - if available - is preferred */
efe75411 824 {"hpet", 0, hpet_start_timer, hpet_stop_timer, NULL, NULL},
c40ec5a9 825 /* ...otherwise try RTC */
efe75411 826 {"rtc", 0, rtc_start_timer, rtc_stop_timer, NULL, NULL},
c8994013 827#endif
efe75411 828 {"unix", 0, unix_start_timer, unix_stop_timer, NULL, NULL},
c8994013 829#else
efe75411
TS		 830 {"dynticks", ALARM_FLAG_DYNTICKS, win32_start_timer,
831 win32_stop_timer, win32_rearm_timer, &alarm_win32_data},
832 {"win32", 0, win32_start_timer,
833 win32_stop_timer, NULL, &alarm_win32_data},
c8994013
TS		 834#endif
835 {NULL, }
836};
837
3f47aa8c 838static void show_available_alarms(void)
f3dcfada
TS		 839{
840 int i;
841
842 printf("Available alarm timers, in order of precedence:\n");
843 for (i = 0; alarm_timers[i].name; i++)
844 printf("%s\n", alarm_timers[i].name);
845}
846
847static void configure_alarms(char const *opt)
848{
849 int i;
850 int cur = 0;
b1503cda 851 int count = ARRAY_SIZE(alarm_timers) - 1;
f3dcfada
TS		 852 char *arg;
853 char *name;
2e70f6ef 854 struct qemu_alarm_timer tmp;
f3dcfada 855
3adda04c 856 if (!strcmp(opt, "?")) {
f3dcfada
TS		 857 show_available_alarms();
858 exit(0);
859 }
860
73ffc805 861 arg = qemu_strdup(opt);
f3dcfada
TS		 862
863 /* Reorder the array */
864 name = strtok(arg, ",");
865 while (name) {
e2b577e5 866 for (i = 0; i < count && alarm_timers[i].name; i++) {
f3dcfada
TS		 867 if (!strcmp(alarm_timers[i].name, name))
868 break;
869 }
870
871 if (i == count) {
872 fprintf(stderr, "Unknown clock %s\n", name);
873 goto next;
874 }
875
876 if (i < cur)
877 /* Ignore */
878 goto next;
879
880 /* Swap */
881 tmp = alarm_timers[i];
882 alarm_timers[i] = alarm_timers[cur];
883 alarm_timers[cur] = tmp;
884
885 cur++;
886next:
887 name = strtok(NULL, ",");
888 }
889
73ffc805 890 qemu_free(arg);
f3dcfada
TS		 891
892 if (cur) {
2e70f6ef 893 /* Disable remaining timers */
f3dcfada
TS		 894 for (i = cur; i < count; i++)
895 alarm_timers[i].name = NULL;
3adda04c
AJ		 896 } else {
897 show_available_alarms();
898 exit(1);
f3dcfada 899 }
f3dcfada
TS		 900}
901
c8994013
TS		 902QEMUClock *rt_clock;
903QEMUClock *vm_clock;
904
905static QEMUTimer *active_timers[2];
906
9596ebb7 907static QEMUClock *qemu_new_clock(int type)
8a7ddc38
FB		 908{
909 QEMUClock *clock;
910 clock = qemu_mallocz(sizeof(QEMUClock));
8a7ddc38
FB		 911 clock->type = type;
912 return clock;
913}
914
915QEMUTimer *qemu_new_timer(QEMUClock *clock, QEMUTimerCB *cb, void *opaque)
916{
917 QEMUTimer *ts;
918
919 ts = qemu_mallocz(sizeof(QEMUTimer));
920 ts->clock = clock;
921 ts->cb = cb;
922 ts->opaque = opaque;
923 return ts;
924}
925
926void qemu_free_timer(QEMUTimer *ts)
927{
928 qemu_free(ts);
929}
930
931/* stop a timer, but do not dealloc it */
932void qemu_del_timer(QEMUTimer *ts)
933{
934 QEMUTimer **pt, *t;
935
936 /* NOTE: this code must be signal safe because
937 qemu_timer_expired() can be called from a signal. */
938 pt = &active_timers[ts->clock->type];
939 for(;;) {
940 t = *pt;
941 if (!t)
942 break;
943 if (t == ts) {
944 *pt = t->next;
945 break;
946 }
947 pt = &t->next;
948 }
949}
950
951/* modify the current timer so that it will be fired when current_time
952 >= expire_time. The corresponding callback will be called. */
953void qemu_mod_timer(QEMUTimer *ts, int64_t expire_time)
954{
955 QEMUTimer **pt, *t;
956
957 qemu_del_timer(ts);
958
959 /* add the timer in the sorted list */
960 /* NOTE: this code must be signal safe because
961 qemu_timer_expired() can be called from a signal. */
962 pt = &active_timers[ts->clock->type];
963 for(;;) {
964 t = *pt;
965 if (!t)
966 break;
5fafdf24 967 if (t->expire_time > expire_time)
8a7ddc38
FB		 968 break;
969 pt = &t->next;
970 }
971 ts->expire_time = expire_time;
972 ts->next = *pt;
973 *pt = ts;
d5d08334
AZ		 974
975 /* Rearm if necessary */
2e70f6ef
PB		 976 if (pt == &active_timers[ts->clock->type]) {
977 if ((alarm_timer->flags & ALARM_FLAG_EXPIRED) == 0) {
978 qemu_rearm_alarm_timer(alarm_timer);
979 }
980 /* Interrupt execution to force deadline recalculation. */
d9f75a4e
AL		 981 if (use_icount)
982 qemu_notify_event();
2e70f6ef 983 }
8a7ddc38
FB		 984}
985
986int qemu_timer_pending(QEMUTimer *ts)
987{
988 QEMUTimer *t;
989 for(t = active_timers[ts->clock->type]; t != NULL; t = t->next) {
990 if (t == ts)
991 return 1;
992 }
993 return 0;
994}
995
2430ffe4 996int qemu_timer_expired(QEMUTimer *timer_head, int64_t current_time)
8a7ddc38
FB		 997{
998 if (!timer_head)
999 return 0;
1000 return (timer_head->expire_time <= current_time);
1001}
1002
1003static void qemu_run_timers(QEMUTimer **ptimer_head, int64_t current_time)
1004{
1005 QEMUTimer *ts;
3b46e624 1006
8a7ddc38
FB		 1007 for(;;) {
1008 ts = *ptimer_head;
e95c8d51 1009 if (!ts || ts->expire_time > current_time)
8a7ddc38
FB		 1010 break;
1011 /* remove timer from the list before calling the callback */
1012 *ptimer_head = ts->next;
1013 ts->next = NULL;
3b46e624 1014
8a7ddc38
FB		 1015 /* run the callback (the timer list can be modified) */
1016 ts->cb(ts->opaque);
1017 }
1018}
1019
1020int64_t qemu_get_clock(QEMUClock *clock)
1021{
1022 switch(clock->type) {
1023 case QEMU_TIMER_REALTIME:
1dce7c3c 1024 return get_clock() / 1000000;
8a7ddc38
FB		 1025 default:
1026 case QEMU_TIMER_VIRTUAL:
2e70f6ef
PB		 1027 if (use_icount) {
1028 return cpu_get_icount();
1029 } else {
1030 return cpu_get_clock();
1031 }
8a7ddc38
FB		 1032 }
1033}
1034
1dce7c3c
FB		 1035static void init_timers(void)
1036{
1037 init_get_clock();
1038 ticks_per_sec = QEMU_TIMER_BASE;
1039 rt_clock = qemu_new_clock(QEMU_TIMER_REALTIME);
1040 vm_clock = qemu_new_clock(QEMU_TIMER_VIRTUAL);
1041}
1042
8a7ddc38
FB		 1043/* save a timer */
1044void qemu_put_timer(QEMUFile *f, QEMUTimer *ts)
1045{
1046 uint64_t expire_time;
1047
1048 if (qemu_timer_pending(ts)) {
1049 expire_time = ts->expire_time;
1050 } else {
1051 expire_time = -1;
1052 }
1053 qemu_put_be64(f, expire_time);
1054}
1055
1056void qemu_get_timer(QEMUFile *f, QEMUTimer *ts)
1057{
1058 uint64_t expire_time;
1059
1060 expire_time = qemu_get_be64(f);
1061 if (expire_time != -1) {
1062 qemu_mod_timer(ts, expire_time);
1063 } else {
1064 qemu_del_timer(ts);
1065 }
1066}
1067
1068static void timer_save(QEMUFile *f, void *opaque)
1069{
1070 if (cpu_ticks_enabled) {
1071 hw_error("cannot save state if virtual timers are running");
1072 }
bee8d684
TS		 1073 qemu_put_be64(f, cpu_ticks_offset);
1074 qemu_put_be64(f, ticks_per_sec);
1075 qemu_put_be64(f, cpu_clock_offset);
8a7ddc38
FB		 1076}
1077
1078static int timer_load(QEMUFile *f, void *opaque, int version_id)
1079{
c88676f8 1080 if (version_id != 1 && version_id != 2)
8a7ddc38
FB		 1081 return -EINVAL;
1082 if (cpu_ticks_enabled) {
1083 return -EINVAL;
1084 }
bee8d684
TS		 1085 cpu_ticks_offset=qemu_get_be64(f);
1086 ticks_per_sec=qemu_get_be64(f);
c88676f8 1087 if (version_id == 2) {
bee8d684 1088 cpu_clock_offset=qemu_get_be64(f);
c88676f8 1089 }
8a7ddc38
FB		 1090 return 0;
1091}
1092
50317c7f
AL		 1093static void qemu_event_increment(void);
1094
67b915a5 1095#ifdef _WIN32
b9e82a59
BS		 1096static void CALLBACK host_alarm_handler(UINT uTimerID, UINT uMsg,
1097 DWORD_PTR dwUser, DWORD_PTR dw1,
1098 DWORD_PTR dw2)
67b915a5 1099#else
8a7ddc38 1100static void host_alarm_handler(int host_signum)
67b915a5 1101#endif
8a7ddc38 1102{
02ba45c5
FB		 1103#if 0
1104#define DISP_FREQ 1000
1105 {
1106 static int64_t delta_min = INT64_MAX;
1107 static int64_t delta_max, delta_cum, last_clock, delta, ti;
1108 static int count;
1109 ti = qemu_get_clock(vm_clock);
1110 if (last_clock != 0) {
1111 delta = ti - last_clock;
1112 if (delta < delta_min)
1113 delta_min = delta;
1114 if (delta > delta_max)
1115 delta_max = delta;
1116 delta_cum += delta;
1117 if (++count == DISP_FREQ) {
26a76461 1118 printf("timer: min=%" PRId64 " us max=%" PRId64 " us avg=%" PRId64 " us avg_freq=%0.3f Hz\n",
02ba45c5
FB		 1119 muldiv64(delta_min, 1000000, ticks_per_sec),
1120 muldiv64(delta_max, 1000000, ticks_per_sec),
1121 muldiv64(delta_cum, 1000000 / DISP_FREQ, ticks_per_sec),
1122 (double)ticks_per_sec / ((double)delta_cum / DISP_FREQ));
1123 count = 0;
1124 delta_min = INT64_MAX;
1125 delta_max = 0;
1126 delta_cum = 0;
1127 }
1128 }
1129 last_clock = ti;
1130 }
1131#endif
efe75411 1132 if (alarm_has_dynticks(alarm_timer) ||
2e70f6ef
PB		 1133 (!use_icount &&
1134 qemu_timer_expired(active_timers[QEMU_TIMER_VIRTUAL],
1135 qemu_get_clock(vm_clock))) ||
8a7ddc38
FB		 1136 qemu_timer_expired(active_timers[QEMU_TIMER_REALTIME],
1137 qemu_get_clock(rt_clock))) {
50317c7f 1138 qemu_event_increment();
e332340a 1139 if (alarm_timer) alarm_timer->flags |= ALARM_FLAG_EXPIRED;
d5d08334 1140
d6dc3d42
AL		 1141#ifndef CONFIG_IOTHREAD
1142 if (next_cpu) {
4f8eb8da 1143 /* stop the currently executing cpu because a timer occured */
d6dc3d42 1144 cpu_exit(next_cpu);
4f8eb8da 1145 }
d6dc3d42 1146#endif
43b96858 1147 timer_alarm_pending = 1;
d9f75a4e 1148 qemu_notify_event();
8a7ddc38
FB		 1149 }
1150}
1151
2e70f6ef 1152static int64_t qemu_next_deadline(void)
efe75411 1153{
2e70f6ef 1154 int64_t delta;
efe75411
TS		 1155
1156 if (active_timers[QEMU_TIMER_VIRTUAL]) {
2e70f6ef
PB		 1157 delta = active_timers[QEMU_TIMER_VIRTUAL]->expire_time -
1158 qemu_get_clock(vm_clock);
1159 } else {
1160 /* To avoid problems with overflow limit this to 2^32. */
1161 delta = INT32_MAX;
efe75411
TS		 1162 }
1163
2e70f6ef
PB		 1164 if (delta < 0)
1165 delta = 0;
efe75411 1166
2e70f6ef
PB		 1167 return delta;
1168}
1169
8632fb9a 1170#if defined(__linux__) || defined(_WIN32)
2e70f6ef
PB		 1171static uint64_t qemu_next_deadline_dyntick(void)
1172{
1173 int64_t delta;
1174 int64_t rtdelta;
1175
1176 if (use_icount)
1177 delta = INT32_MAX;
1178 else
1179 delta = (qemu_next_deadline() + 999) / 1000;
1180
1181 if (active_timers[QEMU_TIMER_REALTIME]) {
1182 rtdelta = (active_timers[QEMU_TIMER_REALTIME]->expire_time -
1183 qemu_get_clock(rt_clock))*1000;
1184 if (rtdelta < delta)
1185 delta = rtdelta;
1186 }
1187
1188 if (delta < MIN_TIMER_REARM_US)
1189 delta = MIN_TIMER_REARM_US;
1190
1191 return delta;
efe75411 1192}
8632fb9a 1193#endif
efe75411 1194
fd872598
FB		 1195#ifndef _WIN32
1196
7183b4b4
AL		 1197/* Sets a specific flag */
1198static int fcntl_setfl(int fd, int flag)
1199{
1200 int flags;
1201
1202 flags = fcntl(fd, F_GETFL);
1203 if (flags == -1)
1204 return -errno;
1205
1206 if (fcntl(fd, F_SETFL, flags | flag) == -1)
1207 return -errno;
1208
1209 return 0;
1210}
1211
829309c7
FB		 1212#if defined(__linux__)
1213
fd872598
FB		 1214#define RTC_FREQ 1024
1215
de9a95f0 1216static void enable_sigio_timer(int fd)
c8994013
TS		 1217{
1218 struct sigaction act;
1219
1220 /* timer signal */
1221 sigfillset(&act.sa_mask);
1222 act.sa_flags = 0;
c8994013
TS		 1223 act.sa_handler = host_alarm_handler;
1224
1225 sigaction(SIGIO, &act, NULL);
7183b4b4 1226 fcntl_setfl(fd, O_ASYNC);
c8994013
TS		 1227 fcntl(fd, F_SETOWN, getpid());
1228}
829309c7 1229
c40ec5a9
TS		 1230static int hpet_start_timer(struct qemu_alarm_timer *t)
1231{
1232 struct hpet_info info;
1233 int r, fd;
1234
1235 fd = open("/dev/hpet", O_RDONLY);
1236 if (fd < 0)
1237 return -1;
1238
1239 /* Set frequency */
1240 r = ioctl(fd, HPET_IRQFREQ, RTC_FREQ);
1241 if (r < 0) {
1242 fprintf(stderr, "Could not configure '/dev/hpet' to have a 1024Hz timer. This is not a fatal\n"
1243 "error, but for better emulation accuracy type:\n"
1244 "'echo 1024 > /proc/sys/dev/hpet/max-user-freq' as root.\n");
1245 goto fail;
1246 }
1247
1248 /* Check capabilities */
1249 r = ioctl(fd, HPET_INFO, &info);
1250 if (r < 0)
1251 goto fail;
1252
1253 /* Enable periodic mode */
1254 r = ioctl(fd, HPET_EPI, 0);
1255 if (info.hi_flags && (r < 0))
1256 goto fail;
1257
1258 /* Enable interrupt */
1259 r = ioctl(fd, HPET_IE_ON, 0);
1260 if (r < 0)
1261 goto fail;
1262
1263 enable_sigio_timer(fd);
fcdc2129 1264 t->priv = (void *)(long)fd;
c40ec5a9
TS		 1265
1266 return 0;
1267fail:
1268 close(fd);
1269 return -1;
1270}
1271
1272static void hpet_stop_timer(struct qemu_alarm_timer *t)
1273{
fcdc2129 1274 int fd = (long)t->priv;
c40ec5a9
TS		 1275
1276 close(fd);
1277}
1278
c8994013 1279static int rtc_start_timer(struct qemu_alarm_timer *t)
fd872598 1280{
c8994013 1281 int rtc_fd;
b5a23ad4 1282 unsigned long current_rtc_freq = 0;
c8994013 1283
aeb30be6 1284 TFR(rtc_fd = open("/dev/rtc", O_RDONLY));
fd872598
FB		 1285 if (rtc_fd < 0)
1286 return -1;
b5a23ad4
AZ		 1287 ioctl(rtc_fd, RTC_IRQP_READ, &current_rtc_freq);
1288 if (current_rtc_freq != RTC_FREQ &&
1289 ioctl(rtc_fd, RTC_IRQP_SET, RTC_FREQ) < 0) {
fd872598
FB		 1290 fprintf(stderr, "Could not configure '/dev/rtc' to have a 1024 Hz timer. This is not a fatal\n"
1291 "error, but for better emulation accuracy either use a 2.6 host Linux kernel or\n"
1292 "type 'echo 1024 > /proc/sys/dev/rtc/max-user-freq' as root.\n");
1293 goto fail;
1294 }
1295 if (ioctl(rtc_fd, RTC_PIE_ON, 0) < 0) {
1296 fail:
1297 close(rtc_fd);
1298 return -1;
1299 }
c8994013
TS		 1300
1301 enable_sigio_timer(rtc_fd);
1302
fcdc2129 1303 t->priv = (void *)(long)rtc_fd;
c8994013 1304
fd872598
FB		 1305 return 0;
1306}
1307
c8994013 1308static void rtc_stop_timer(struct qemu_alarm_timer *t)
829309c7 1309{
fcdc2129 1310 int rtc_fd = (long)t->priv;
c8994013
TS		 1311
1312 close(rtc_fd);
829309c7
FB		 1313}
1314
efe75411
TS		 1315static int dynticks_start_timer(struct qemu_alarm_timer *t)
1316{
1317 struct sigevent ev;
1318 timer_t host_timer;
1319 struct sigaction act;
1320
1321 sigfillset(&act.sa_mask);
1322 act.sa_flags = 0;
efe75411
TS		 1323 act.sa_handler = host_alarm_handler;
1324
1325 sigaction(SIGALRM, &act, NULL);
1326
9ed415b2
JCD		 1327 /*
1328 * Initialize ev struct to 0 to avoid valgrind complaining
1329 * about uninitialized data in timer_create call
1330 */
1331 memset(&ev, 0, sizeof(ev));
efe75411
TS		 1332 ev.sigev_value.sival_int = 0;
1333 ev.sigev_notify = SIGEV_SIGNAL;
1334 ev.sigev_signo = SIGALRM;
1335
1336 if (timer_create(CLOCK_REALTIME, &ev, &host_timer)) {
1337 perror("timer_create");
1338
1339 /* disable dynticks */
1340 fprintf(stderr, "Dynamic Ticks disabled\n");
1341
1342 return -1;
1343 }
1344
0399bfe0 1345 t->priv = (void *)(long)host_timer;
efe75411
TS		 1346
1347 return 0;
1348}
1349
1350static void dynticks_stop_timer(struct qemu_alarm_timer *t)
1351{
0399bfe0 1352 timer_t host_timer = (timer_t)(long)t->priv;
efe75411
TS		 1353
1354 timer_delete(host_timer);
1355}
1356
1357static void dynticks_rearm_timer(struct qemu_alarm_timer *t)
1358{
0399bfe0 1359 timer_t host_timer = (timer_t)(long)t->priv;
efe75411
TS		 1360 struct itimerspec timeout;
1361 int64_t nearest_delta_us = INT64_MAX;
1362 int64_t current_us;
1363
1364 if (!active_timers[QEMU_TIMER_REALTIME] &&
1365 !active_timers[QEMU_TIMER_VIRTUAL])
d5d08334 1366 return;
efe75411 1367
2e70f6ef 1368 nearest_delta_us = qemu_next_deadline_dyntick();
efe75411
TS		 1369
1370 /* check whether a timer is already running */
1371 if (timer_gettime(host_timer, &timeout)) {
1372 perror("gettime");
1373 fprintf(stderr, "Internal timer error: aborting\n");
1374 exit(1);
1375 }
1376 current_us = timeout.it_value.tv_sec * 1000000 + timeout.it_value.tv_nsec/1000;
1377 if (current_us && current_us <= nearest_delta_us)
1378 return;
1379
1380 timeout.it_interval.tv_sec = 0;
1381 timeout.it_interval.tv_nsec = 0; /* 0 for one-shot timer */
1382 timeout.it_value.tv_sec = nearest_delta_us / 1000000;
1383 timeout.it_value.tv_nsec = (nearest_delta_us % 1000000) * 1000;
1384 if (timer_settime(host_timer, 0 /* RELATIVE */, &timeout, NULL)) {
1385 perror("settime");
1386 fprintf(stderr, "Internal timer error: aborting\n");
1387 exit(1);
1388 }
1389}
1390
70744b3a 1391#endif /* defined(__linux__) */
231c6586 1392
c8994013
TS		 1393static int unix_start_timer(struct qemu_alarm_timer *t)
1394{
1395 struct sigaction act;
1396 struct itimerval itv;
1397 int err;
1398
1399 /* timer signal */
1400 sigfillset(&act.sa_mask);
1401 act.sa_flags = 0;
c8994013
TS		 1402 act.sa_handler = host_alarm_handler;
1403
1404 sigaction(SIGALRM, &act, NULL);
1405
1406 itv.it_interval.tv_sec = 0;
1407 /* for i386 kernel 2.6 to get 1 ms */
1408 itv.it_interval.tv_usec = 999;
1409 itv.it_value.tv_sec = 0;
1410 itv.it_value.tv_usec = 10 * 1000;
1411
1412 err = setitimer(ITIMER_REAL, &itv, NULL);
1413 if (err)
1414 return -1;
1415
1416 return 0;
1417}
1418
1419static void unix_stop_timer(struct qemu_alarm_timer *t)
1420{
1421 struct itimerval itv;
1422
1423 memset(&itv, 0, sizeof(itv));
1424 setitimer(ITIMER_REAL, &itv, NULL);
1425}
1426
829309c7 1427#endif /* !defined(_WIN32) */
fd872598 1428
f49e58dc 1429
c8994013
TS		 1430#ifdef _WIN32
1431
1432static int win32_start_timer(struct qemu_alarm_timer *t)
1433{
1434 TIMECAPS tc;
1435 struct qemu_alarm_win32 *data = t->priv;
efe75411 1436 UINT flags;
c8994013 1437
c8994013
TS		 1438 memset(&tc, 0, sizeof(tc));
1439 timeGetDevCaps(&tc, sizeof(tc));
1440
1441 if (data->period < tc.wPeriodMin)
1442 data->period = tc.wPeriodMin;
1443
1444 timeBeginPeriod(data->period);
1445
efe75411
TS		 1446 flags = TIME_CALLBACK_FUNCTION;
1447 if (alarm_has_dynticks(t))
1448 flags |= TIME_ONESHOT;
1449 else
1450 flags |= TIME_PERIODIC;
1451
c8994013
TS		 1452 data->timerId = timeSetEvent(1, // interval (ms)
1453 data->period, // resolution
1454 host_alarm_handler, // function
1455 (DWORD)t, // parameter
efe75411 1456 flags);
c8994013
TS		 1457
1458 if (!data->timerId) {
1459 perror("Failed to initialize win32 alarm timer");
c8994013 1460 timeEndPeriod(data->period);
c8994013
TS		 1461 return -1;
1462 }
1463
c8994013
TS		 1464 return 0;
1465}
1466
1467static void win32_stop_timer(struct qemu_alarm_timer *t)
1468{
1469 struct qemu_alarm_win32 *data = t->priv;
1470
1471 timeKillEvent(data->timerId);
1472 timeEndPeriod(data->period);
c8994013
TS		 1473}
1474
efe75411
TS		 1475static void win32_rearm_timer(struct qemu_alarm_timer *t)
1476{
1477 struct qemu_alarm_win32 *data = t->priv;
1478 uint64_t nearest_delta_us;
1479
1480 if (!active_timers[QEMU_TIMER_REALTIME] &&
1481 !active_timers[QEMU_TIMER_VIRTUAL])
d5d08334 1482 return;
efe75411 1483
2e70f6ef 1484 nearest_delta_us = qemu_next_deadline_dyntick();
efe75411
TS		 1485 nearest_delta_us /= 1000;
1486
1487 timeKillEvent(data->timerId);
1488
1489 data->timerId = timeSetEvent(1,
1490 data->period,
1491 host_alarm_handler,
1492 (DWORD)t,
1493 TIME_ONESHOT | TIME_PERIODIC);
1494
1495 if (!data->timerId) {
1496 perror("Failed to re-arm win32 alarm timer");
1497
1498 timeEndPeriod(data->period);
efe75411
TS		 1499 exit(1);
1500 }
1501}
1502
c8994013
TS		 1503#endif /* _WIN32 */
1504
7183b4b4 1505static int init_timer_alarm(void)
8a7ddc38 1506{
223f0d72 1507 struct qemu_alarm_timer *t = NULL;
c8994013 1508 int i, err = -1;
f49e58dc 1509
c8994013
TS		 1510 for (i = 0; alarm_timers[i].name; i++) {
1511 t = &alarm_timers[i];
1512
c8994013
TS		 1513 err = t->start(t);
1514 if (!err)
1515 break;
67b915a5 1516 }
fd872598 1517
c8994013 1518 if (err) {
7183b4b4
AL		 1519 err = -ENOENT;
1520 goto fail;
67b915a5 1521 }
c8994013
TS		 1522
1523 alarm_timer = t;
7183b4b4 1524
6abfbd79 1525 return 0;
7183b4b4
AL		 1526
1527fail:
7183b4b4 1528 return err;
8a7ddc38
FB		 1529}
1530
9596ebb7 1531static void quit_timers(void)
40c3bac3 1532{
c8994013
TS		 1533 alarm_timer->stop(alarm_timer);
1534 alarm_timer = NULL;
40c3bac3
FB		 1535}
1536
f6503059
AZ		 1537/***********************************************************/
1538/* host time/date access */
1539void qemu_get_timedate(struct tm *tm, int offset)
1540{
1541 time_t ti;
1542 struct tm *ret;
1543
1544 time(&ti);
1545 ti += offset;
1546 if (rtc_date_offset == -1) {
1547 if (rtc_utc)
1548 ret = gmtime(&ti);
1549 else
1550 ret = localtime(&ti);
1551 } else {
1552 ti -= rtc_date_offset;
1553 ret = gmtime(&ti);
1554 }
1555
1556 memcpy(tm, ret, sizeof(struct tm));
1557}
1558
1559int qemu_timedate_diff(struct tm *tm)
1560{
1561 time_t seconds;
1562
1563 if (rtc_date_offset == -1)
1564 if (rtc_utc)
1565 seconds = mktimegm(tm);
1566 else
1567 seconds = mktime(tm);
1568 else
1569 seconds = mktimegm(tm) + rtc_date_offset;
1570
1571 return seconds - time(NULL);
1572}
1573
fd1dff4b 1574#ifdef _WIN32
fd1dff4b
FB		 1575static void socket_cleanup(void)
1576{
1577 WSACleanup();
1578}
82c643ff 1579
fd1dff4b
FB		 1580static int socket_init(void)
1581{
1582 WSADATA Data;
1583 int ret, err;
1584
1585 ret = WSAStartup(MAKEWORD(2,2), &Data);
1586 if (ret != 0) {
1587 err = WSAGetLastError();
1588 fprintf(stderr, "WSAStartup: %d\n", err);
1589 return -1;
1590 }
1591 atexit(socket_cleanup);
1592 return 0;
1593}
64b7b733
AJ		 1594#endif
1595
1ae26a18
AZ		 1596/***********************************************************/
1597/* Bluetooth support */
1598static int nb_hcis;
1599static int cur_hci;
1600static struct HCIInfo *hci_table[MAX_NICS];
dc72ac14 1601
1ae26a18
AZ		 1602static struct bt_vlan_s {
1603 struct bt_scatternet_s net;
1604 int id;
1605 struct bt_vlan_s *next;
1606} *first_bt_vlan;
1607
1608/* find or alloc a new bluetooth "VLAN" */
674bb261 1609static struct bt_scatternet_s *qemu_find_bt_vlan(int id)
1ae26a18
AZ		 1610{
1611 struct bt_vlan_s **pvlan, *vlan;
1612 for (vlan = first_bt_vlan; vlan != NULL; vlan = vlan->next) {
1613 if (vlan->id == id)
1614 return &vlan->net;
1615 }
1616 vlan = qemu_mallocz(sizeof(struct bt_vlan_s));
1617 vlan->id = id;
1618 pvlan = &first_bt_vlan;
1619 while (*pvlan != NULL)
1620 pvlan = &(*pvlan)->next;
1621 *pvlan = vlan;
1622 return &vlan->net;
1623}
1624
1625static void null_hci_send(struct HCIInfo *hci, const uint8_t *data, int len)
1626{
1627}
1628
1629static int null_hci_addr_set(struct HCIInfo *hci, const uint8_t *bd_addr)
1630{
1631 return -ENOTSUP;
1632}
1633
1634static struct HCIInfo null_hci = {
1635 .cmd_send = null_hci_send,
1636 .sco_send = null_hci_send,
1637 .acl_send = null_hci_send,
1638 .bdaddr_set = null_hci_addr_set,
1639};
1640
1641struct HCIInfo *qemu_next_hci(void)
1642{
1643 if (cur_hci == nb_hcis)
1644 return &null_hci;
1645
1646 return hci_table[cur_hci++];
1647}
1648
dc72ac14
AZ		 1649static struct HCIInfo *hci_init(const char *str)
1650{
1651 char *endp;
1652 struct bt_scatternet_s *vlan = 0;
1653
1654 if (!strcmp(str, "null"))
1655 /* null */
1656 return &null_hci;
1657 else if (!strncmp(str, "host", 4) && (str[4] == '\0' || str[4] == ':'))
1658 /* host[:hciN] */
1659 return bt_host_hci(str[4] ? str + 5 : "hci0");
1660 else if (!strncmp(str, "hci", 3)) {
1661 /* hci[,vlan=n] */
1662 if (str[3]) {
1663 if (!strncmp(str + 3, ",vlan=", 6)) {
1664 vlan = qemu_find_bt_vlan(strtol(str + 9, &endp, 0));
1665 if (*endp)
1666 vlan = 0;
1667 }
1668 } else
1669 vlan = qemu_find_bt_vlan(0);
1670 if (vlan)
1671 return bt_new_hci(vlan);
1672 }
1673
1674 fprintf(stderr, "qemu: Unknown bluetooth HCI `%s'.\n", str);
1675
1676 return 0;
1677}
1678
1679static int bt_hci_parse(const char *str)
1680{
1681 struct HCIInfo *hci;
1682 bdaddr_t bdaddr;
1683
1684 if (nb_hcis >= MAX_NICS) {
1685 fprintf(stderr, "qemu: Too many bluetooth HCIs (max %i).\n", MAX_NICS);
1686 return -1;
1687 }
1688
1689 hci = hci_init(str);
1690 if (!hci)
1691 return -1;
1692
1693 bdaddr.b[0] = 0x52;
1694 bdaddr.b[1] = 0x54;
1695 bdaddr.b[2] = 0x00;
1696 bdaddr.b[3] = 0x12;
1697 bdaddr.b[4] = 0x34;
1698 bdaddr.b[5] = 0x56 + nb_hcis;
1699 hci->bdaddr_set(hci, bdaddr.b);
1700
1701 hci_table[nb_hcis++] = hci;
1702
1703 return 0;
1704}
1705
1706static void bt_vhci_add(int vlan_id)
1707{
1708 struct bt_scatternet_s *vlan = qemu_find_bt_vlan(vlan_id);
1709
1710 if (!vlan->slave)
1711 fprintf(stderr, "qemu: warning: adding a VHCI to "
1712 "an empty scatternet %i\n", vlan_id);
1713
1714 bt_vhci_init(bt_new_hci(vlan));
1715}
1716
1717static struct bt_device_s *bt_device_add(const char *opt)
1718{
1719 struct bt_scatternet_s *vlan;
1720 int vlan_id = 0;
1721 char *endp = strstr(opt, ",vlan=");
1722 int len = (endp ? endp - opt : strlen(opt)) + 1;
1723 char devname[10];
1724
1725 pstrcpy(devname, MIN(sizeof(devname), len), opt);
1726
1727 if (endp) {
1728 vlan_id = strtol(endp + 6, &endp, 0);
1729 if (*endp) {
1730 fprintf(stderr, "qemu: unrecognised bluetooth vlan Id\n");
1731 return 0;
1732 }
1733 }
1734
1735 vlan = qemu_find_bt_vlan(vlan_id);
1736
1737 if (!vlan->slave)
1738 fprintf(stderr, "qemu: warning: adding a slave device to "
1739 "an empty scatternet %i\n", vlan_id);
1740
1741 if (!strcmp(devname, "keyboard"))
1742 return bt_keyboard_init(vlan);
1743
1744 fprintf(stderr, "qemu: unsupported bluetooth device `%s'\n", devname);
1745 return 0;
1746}
1747
1748static int bt_parse(const char *opt)
1749{
1750 const char *endp, *p;
1751 int vlan;
1752
1753 if (strstart(opt, "hci", &endp)) {
1754 if (!*endp || *endp == ',') {
1755 if (*endp)
1756 if (!strstart(endp, ",vlan=", 0))
1757 opt = endp + 1;
1758
1759 return bt_hci_parse(opt);
1760 }
1761 } else if (strstart(opt, "vhci", &endp)) {
1762 if (!*endp || *endp == ',') {
1763 if (*endp) {
1764 if (strstart(endp, ",vlan=", &p)) {
1765 vlan = strtol(p, (char **) &endp, 0);
1766 if (*endp) {
1767 fprintf(stderr, "qemu: bad scatternet '%s'\n", p);
1768 return 1;
1769 }
1770 } else {
1771 fprintf(stderr, "qemu: bad parameter '%s'\n", endp + 1);
1772 return 1;
1773 }
1774 } else
1775 vlan = 0;
1776
1777 bt_vhci_add(vlan);
1778 return 0;
1779 }
1780 } else if (strstart(opt, "device:", &endp))
1781 return !bt_device_add(endp);
1782
1783 fprintf(stderr, "qemu: bad bluetooth parameter '%s'\n", opt);
1784 return 1;
1785}
1786
1ae26a18
AZ		 1787/***********************************************************/
1788/* QEMU Block devices */
1789
609497ab 1790#define HD_ALIAS "index=%d,media=disk"
e4bcb14c 1791#define CDROM_ALIAS "index=2,media=cdrom"
e4bcb14c 1792#define FD_ALIAS "index=%d,if=floppy"
609497ab
AZ		 1793#define PFLASH_ALIAS "if=pflash"
1794#define MTD_ALIAS "if=mtd"
9d413d1d 1795#define SD_ALIAS "index=0,if=sd"
e4bcb14c 1796
9dfd7c7a 1797QemuOpts *drive_add(const char *file, const char *fmt, ...)
e4bcb14c
TS		 1798{
1799 va_list ap;
9dfd7c7a
GH		 1800 char optstr[1024];
1801 QemuOpts *opts;
e4bcb14c 1802
e4bcb14c 1803 va_start(ap, fmt);
9dfd7c7a 1804 vsnprintf(optstr, sizeof(optstr), fmt, ap);
e4bcb14c
TS		 1805 va_end(ap);
1806
7282a033 1807 opts = qemu_opts_parse(&qemu_drive_opts, optstr, NULL);
9dfd7c7a
GH		 1808 if (!opts) {
1809 fprintf(stderr, "%s: huh? duplicate? (%s)\n",
1810 __FUNCTION__, optstr);
1811 return NULL;
1812 }
1813 if (file)
1814 qemu_opt_set(opts, "file", file);
1815 return opts;
b01b1111
AL		 1816}
1817
751c6a17 1818DriveInfo *drive_get(BlockInterfaceType type, int bus, int unit)
e4bcb14c 1819{
751c6a17 1820 DriveInfo *dinfo;
e4bcb14c
TS		 1821
1822 /* seek interface, bus and unit */
1823
751c6a17
GH		 1824 TAILQ_FOREACH(dinfo, &drives, next) {
1825 if (dinfo->type == type &&
1826 dinfo->bus == bus &&
1827 dinfo->unit == unit)
1828 return dinfo;
1829 }
e4bcb14c 1830
751c6a17 1831 return NULL;
e4bcb14c
TS		 1832}
1833
2e810b36 1834DriveInfo *drive_get_by_id(const char *id)
1dae12e6
GH		 1835{
1836 DriveInfo *dinfo;
1837
1838 TAILQ_FOREACH(dinfo, &drives, next) {
1839 if (strcmp(id, dinfo->id))
1840 continue;
1841 return dinfo;
1842 }
1843 return NULL;
1844}
1845
f60d39bc 1846int drive_get_max_bus(BlockInterfaceType type)
e4bcb14c
TS		 1847{
1848 int max_bus;
751c6a17 1849 DriveInfo *dinfo;
e4bcb14c
TS		 1850
1851 max_bus = -1;
751c6a17
GH		 1852 TAILQ_FOREACH(dinfo, &drives, next) {
1853 if(dinfo->type == type &&
1854 dinfo->bus > max_bus)
1855 max_bus = dinfo->bus;
e4bcb14c
TS		 1856 }
1857 return max_bus;
1858}
1859
fa879c64
AL		 1860const char *drive_get_serial(BlockDriverState *bdrv)
1861{
751c6a17 1862 DriveInfo *dinfo;
fa879c64 1863
751c6a17
GH		 1864 TAILQ_FOREACH(dinfo, &drives, next) {
1865 if (dinfo->bdrv == bdrv)
1866 return dinfo->serial;
1867 }
fa879c64
AL		 1868
1869 return "\0";
1870}
1871
428c5705
AL		 1872BlockInterfaceErrorAction drive_get_onerror(BlockDriverState *bdrv)
1873{
751c6a17 1874 DriveInfo *dinfo;
428c5705 1875
751c6a17
GH		 1876 TAILQ_FOREACH(dinfo, &drives, next) {
1877 if (dinfo->bdrv == bdrv)
1878 return dinfo->onerror;
1879 }
428c5705 1880
cdad4bd8 1881 return BLOCK_ERR_STOP_ENOSPC;
428c5705
AL		 1882}
1883
a1620fac
AJ		 1884static void bdrv_format_print(void *opaque, const char *name)
1885{
1886 fprintf(stderr, " %s", name);
1887}
1888
b01b1111
AL		 1889void drive_uninit(BlockDriverState *bdrv)
1890{
751c6a17 1891 DriveInfo *dinfo;
b01b1111 1892
751c6a17
GH		 1893 TAILQ_FOREACH(dinfo, &drives, next) {
1894 if (dinfo->bdrv != bdrv)
1895 continue;
9dfd7c7a 1896 qemu_opts_del(dinfo->opts);
751c6a17
GH		 1897 TAILQ_REMOVE(&drives, dinfo, next);
1898 qemu_free(dinfo);
1899 break;
1900 }
b01b1111
AL		 1901}
1902
9dfd7c7a 1903DriveInfo *drive_init(QemuOpts *opts, void *opaque,
751c6a17 1904 int *fatal_error)
e4bcb14c 1905{
9dfd7c7a
GH		 1906 const char *buf;
1907 const char *file = NULL;
c8522bdf 1908 char devname[128];
9dfd7c7a 1909 const char *serial;
c8522bdf 1910 const char *mediastr = "";
f60d39bc 1911 BlockInterfaceType type;
e4bcb14c
TS		 1912 enum { MEDIA_DISK, MEDIA_CDROM } media;
1913 int bus_id, unit_id;
1914 int cyls, heads, secs, translation;
1e72d3b7 1915 BlockDriver *drv = NULL;
4d73cd3b 1916 QEMUMachine *machine = opaque;
e4bcb14c
TS		 1917 int max_devs;
1918 int index;
33f00271 1919 int cache;
5c6c3a6c 1920 int aio = 0;
428c5705 1921 int bdrv_flags, onerror;
c2cc47a4 1922 const char *devaddr;
751c6a17 1923 DriveInfo *dinfo;
9dfd7c7a 1924 int snapshot = 0;
e4bcb14c 1925
9dfd7c7a 1926 *fatal_error = 1;
e4bcb14c 1927
e4bcb14c 1928 translation = BIOS_ATA_TRANSLATION_AUTO;
0aa217e4 1929 cache = 1;
e4bcb14c 1930
4d007814 1931 if (machine && machine->use_scsi) {
f60d39bc 1932 type = IF_SCSI;
e4bcb14c 1933 max_devs = MAX_SCSI_DEVS;
363a37d5 1934 pstrcpy(devname, sizeof(devname), "scsi");
e4bcb14c 1935 } else {
f60d39bc 1936 type = IF_IDE;
e4bcb14c 1937 max_devs = MAX_IDE_DEVS;
363a37d5 1938 pstrcpy(devname, sizeof(devname), "ide");
e4bcb14c
TS		 1939 }
1940 media = MEDIA_DISK;
1941
1942 /* extract parameters */
9dfd7c7a
GH		 1943 bus_id = qemu_opt_get_number(opts, "bus", 0);
1944 unit_id = qemu_opt_get_number(opts, "unit", -1);
1945 index = qemu_opt_get_number(opts, "index", -1);
e4bcb14c 1946
9dfd7c7a
GH		 1947 cyls = qemu_opt_get_number(opts, "cyls", 0);
1948 heads = qemu_opt_get_number(opts, "heads", 0);
1949 secs = qemu_opt_get_number(opts, "secs", 0);
e4bcb14c 1950
9dfd7c7a 1951 snapshot = qemu_opt_get_bool(opts, "snapshot", 0);
e4bcb14c 1952
9dfd7c7a
GH		 1953 file = qemu_opt_get(opts, "file");
1954 serial = qemu_opt_get(opts, "serial");
1955
1956 if ((buf = qemu_opt_get(opts, "if")) != NULL) {
ae45d369 1957 pstrcpy(devname, sizeof(devname), buf);
e4bcb14c 1958 if (!strcmp(buf, "ide")) {
f60d39bc 1959 type = IF_IDE;
e4bcb14c
TS		 1960 max_devs = MAX_IDE_DEVS;
1961 } else if (!strcmp(buf, "scsi")) {
f60d39bc 1962 type = IF_SCSI;
e4bcb14c
TS		 1963 max_devs = MAX_SCSI_DEVS;
1964 } else if (!strcmp(buf, "floppy")) {
f60d39bc 1965 type = IF_FLOPPY;
e4bcb14c
TS		 1966 max_devs = 0;
1967 } else if (!strcmp(buf, "pflash")) {
f60d39bc 1968 type = IF_PFLASH;
e4bcb14c
TS		 1969 max_devs = 0;
1970 } else if (!strcmp(buf, "mtd")) {
f60d39bc 1971 type = IF_MTD;
e4bcb14c
TS		 1972 max_devs = 0;
1973 } else if (!strcmp(buf, "sd")) {
f60d39bc 1974 type = IF_SD;
e4bcb14c 1975 max_devs = 0;
6e02c38d
AL		 1976 } else if (!strcmp(buf, "virtio")) {
1977 type = IF_VIRTIO;
1978 max_devs = 0;
62d23efa
AL		 1979 } else if (!strcmp(buf, "xen")) {
1980 type = IF_XEN;
1981 max_devs = 0;
a8659e90
GH		 1982 } else if (!strcmp(buf, "none")) {
1983 type = IF_NONE;
1984 max_devs = 0;
62d23efa 1985 } else {
9dfd7c7a 1986 fprintf(stderr, "qemu: unsupported bus type '%s'\n", buf);
751c6a17 1987 return NULL;
e4bcb14c
TS		 1988 }
1989 }
1990
e4bcb14c
TS		 1991 if (cyls || heads || secs) {
1992 if (cyls < 1 || cyls > 16383) {
9dfd7c7a 1993 fprintf(stderr, "qemu: '%s' invalid physical cyls number\n", buf);
751c6a17 1994 return NULL;
e4bcb14c
TS		 1995 }
1996 if (heads < 1 || heads > 16) {
9dfd7c7a 1997 fprintf(stderr, "qemu: '%s' invalid physical heads number\n", buf);
751c6a17 1998 return NULL;
e4bcb14c
TS		 1999 }
2000 if (secs < 1 || secs > 63) {
9dfd7c7a 2001 fprintf(stderr, "qemu: '%s' invalid physical secs number\n", buf);
751c6a17 2002 return NULL;
e4bcb14c
TS		 2003 }
2004 }
2005
9dfd7c7a 2006 if ((buf = qemu_opt_get(opts, "trans")) != NULL) {
e4bcb14c
TS		 2007 if (!cyls) {
2008 fprintf(stderr,
2009 "qemu: '%s' trans must be used with cyls,heads and secs\n",
9dfd7c7a 2010 buf);
751c6a17 2011 return NULL;
e4bcb14c
TS		 2012 }
2013 if (!strcmp(buf, "none"))
2014 translation = BIOS_ATA_TRANSLATION_NONE;
2015 else if (!strcmp(buf, "lba"))
2016 translation = BIOS_ATA_TRANSLATION_LBA;
2017 else if (!strcmp(buf, "auto"))
2018 translation = BIOS_ATA_TRANSLATION_AUTO;
2019 else {
9dfd7c7a 2020 fprintf(stderr, "qemu: '%s' invalid translation type\n", buf);
751c6a17 2021 return NULL;
e4bcb14c
TS		 2022 }
2023 }
2024
9dfd7c7a 2025 if ((buf = qemu_opt_get(opts, "media")) != NULL) {
e4bcb14c
TS		 2026 if (!strcmp(buf, "disk")) {
2027 media = MEDIA_DISK;
2028 } else if (!strcmp(buf, "cdrom")) {
2029 if (cyls || secs || heads) {
2030 fprintf(stderr,
9dfd7c7a 2031 "qemu: '%s' invalid physical CHS format\n", buf);
751c6a17 2032 return NULL;
e4bcb14c
TS		 2033 }
2034 media = MEDIA_CDROM;
2035 } else {
9dfd7c7a 2036 fprintf(stderr, "qemu: '%s' invalid media\n", buf);
751c6a17 2037 return NULL;
e4bcb14c
TS		 2038 }
2039 }
2040
9dfd7c7a 2041 if ((buf = qemu_opt_get(opts, "cache")) != NULL) {
9f7965c7 2042 if (!strcmp(buf, "off") || !strcmp(buf, "none"))
33f00271 2043 cache = 0;
9f7965c7 2044 else if (!strcmp(buf, "writethrough"))
33f00271 2045 cache = 1;
9f7965c7
AL		 2046 else if (!strcmp(buf, "writeback"))
2047 cache = 2;
33f00271
AZ		 2048 else {
2049 fprintf(stderr, "qemu: invalid cache option\n");
751c6a17 2050 return NULL;
33f00271
AZ		 2051 }
2052 }
2053
5c6c3a6c
CH		 2054#ifdef CONFIG_LINUX_AIO
2055 if ((buf = qemu_opt_get(opts, "aio")) != NULL) {
2056 if (!strcmp(buf, "threads"))
2057 aio = 0;
2058 else if (!strcmp(buf, "native"))
2059 aio = 1;
2060 else {
2061 fprintf(stderr, "qemu: invalid aio option\n");
2062 return NULL;
2063 }
2064 }
2065#endif
2066
9dfd7c7a 2067 if ((buf = qemu_opt_get(opts, "format")) != NULL) {
a1620fac
AJ		 2068 if (strcmp(buf, "?") == 0) {
2069 fprintf(stderr, "qemu: Supported formats:");
2070 bdrv_iterate_format(bdrv_format_print, NULL);
2071 fprintf(stderr, "\n");
751c6a17 2072 return NULL;
a1620fac 2073 }
1e72d3b7
AJ		 2074 drv = bdrv_find_format(buf);
2075 if (!drv) {
2076 fprintf(stderr, "qemu: '%s' invalid format\n", buf);
751c6a17 2077 return NULL;
1e72d3b7
AJ		 2078 }
2079 }
2080
cdad4bd8 2081 onerror = BLOCK_ERR_STOP_ENOSPC;
9dfd7c7a 2082 if ((buf = qemu_opt_get(opts, "werror")) != NULL) {
869a5c6d 2083 if (type != IF_IDE && type != IF_SCSI && type != IF_VIRTIO) {
ea8a5d7f 2084 fprintf(stderr, "werror is no supported by this format\n");
751c6a17 2085 return NULL;
428c5705
AL		 2086 }
2087 if (!strcmp(buf, "ignore"))
2088 onerror = BLOCK_ERR_IGNORE;
2089 else if (!strcmp(buf, "enospc"))
2090 onerror = BLOCK_ERR_STOP_ENOSPC;
2091 else if (!strcmp(buf, "stop"))
2092 onerror = BLOCK_ERR_STOP_ANY;
2093 else if (!strcmp(buf, "report"))
2094 onerror = BLOCK_ERR_REPORT;
2095 else {
2096 fprintf(stderr, "qemu: '%s' invalid write error action\n", buf);
751c6a17 2097 return NULL;
428c5705
AL		 2098 }
2099 }
2100
9dfd7c7a 2101 if ((devaddr = qemu_opt_get(opts, "addr")) != NULL) {
c2cc47a4 2102 if (type != IF_VIRTIO) {
9dfd7c7a 2103 fprintf(stderr, "addr is not supported\n");
751c6a17 2104 return NULL;
c2cc47a4 2105 }
c2cc47a4
MA		 2106 }
2107
e4bcb14c
TS		 2108 /* compute bus and unit according index */
2109
2110 if (index != -1) {
2111 if (bus_id != 0 || unit_id != -1) {
2112 fprintf(stderr,
9dfd7c7a 2113 "qemu: index cannot be used with bus and unit\n");
751c6a17 2114 return NULL;
e4bcb14c
TS		 2115 }
2116 if (max_devs == 0)
2117 {
2118 unit_id = index;
2119 bus_id = 0;
2120 } else {
2121 unit_id = index % max_devs;
2122 bus_id = index / max_devs;
2123 }
2124 }
2125
2126 /* if user doesn't specify a unit_id,
2127 * try to find the first free
2128 */
2129
2130 if (unit_id == -1) {
2131 unit_id = 0;
751c6a17 2132 while (drive_get(type, bus_id, unit_id) != NULL) {
e4bcb14c
TS		 2133 unit_id++;
2134 if (max_devs && unit_id >= max_devs) {
2135 unit_id -= max_devs;
2136 bus_id++;
2137 }
2138 }
2139 }
2140
2141 /* check unit id */
2142
2143 if (max_devs && unit_id >= max_devs) {
9dfd7c7a
GH		 2144 fprintf(stderr, "qemu: unit %d too big (max is %d)\n",
2145 unit_id, max_devs - 1);
751c6a17 2146 return NULL;
e4bcb14c
TS		 2147 }
2148
2149 /*
2150 * ignore multiple definitions
2151 */
2152
751c6a17
GH		 2153 if (drive_get(type, bus_id, unit_id) != NULL) {
2154 *fatal_error = 0;
2155 return NULL;
2156 }
e4bcb14c
TS		 2157
2158 /* init */
2159
751c6a17 2160 dinfo = qemu_mallocz(sizeof(*dinfo));
e23d9c4d 2161 if ((buf = qemu_opts_id(opts)) != NULL) {
9dfd7c7a
GH		 2162 dinfo->id = qemu_strdup(buf);
2163 } else {
1dae12e6 2164 /* no id supplied -> create one */
9dfd7c7a 2165 dinfo->id = qemu_mallocz(32);
1dae12e6
GH		 2166 if (type == IF_IDE || type == IF_SCSI)
2167 mediastr = (media == MEDIA_CDROM) ? "-cd" : "-hd";
2168 if (max_devs)
9dfd7c7a 2169 snprintf(dinfo->id, 32, "%s%i%s%i",
1dae12e6
GH		 2170 devname, bus_id, mediastr, unit_id);
2171 else
9dfd7c7a 2172 snprintf(dinfo->id, 32, "%s%s%i",
1dae12e6
GH		 2173 devname, mediastr, unit_id);
2174 }
1dae12e6 2175 dinfo->bdrv = bdrv_new(dinfo->id);
751c6a17
GH		 2176 dinfo->devaddr = devaddr;
2177 dinfo->type = type;
2178 dinfo->bus = bus_id;
2179 dinfo->unit = unit_id;
2180 dinfo->onerror = onerror;
9dfd7c7a
GH		 2181 dinfo->opts = opts;
2182 if (serial)
2183 strncpy(dinfo->serial, serial, sizeof(serial));
751c6a17 2184 TAILQ_INSERT_TAIL(&drives, dinfo, next);
e4bcb14c 2185
f60d39bc 2186 switch(type) {
e4bcb14c
TS		 2187 case IF_IDE:
2188 case IF_SCSI:
62d23efa 2189 case IF_XEN:
e4bcb14c
TS		 2190 switch(media) {
2191 case MEDIA_DISK:
2192 if (cyls != 0) {
1dae12e6
GH		 2193 bdrv_set_geometry_hint(dinfo->bdrv, cyls, heads, secs);
2194 bdrv_set_translation_hint(dinfo->bdrv, translation);
e4bcb14c
TS		 2195 }
2196 break;
2197 case MEDIA_CDROM:
1dae12e6 2198 bdrv_set_type_hint(dinfo->bdrv, BDRV_TYPE_CDROM);
e4bcb14c
TS		 2199 break;
2200 }
2201 break;
2202 case IF_SD:
2203 /* FIXME: This isn't really a floppy, but it's a reasonable
2204 approximation. */
2205 case IF_FLOPPY:
1dae12e6 2206 bdrv_set_type_hint(dinfo->bdrv, BDRV_TYPE_FLOPPY);
e4bcb14c
TS		 2207 break;
2208 case IF_PFLASH:
2209 case IF_MTD:
a8659e90 2210 case IF_NONE:
e4bcb14c 2211 break;
d176c495
GH		 2212 case IF_VIRTIO:
2213 /* add virtio block device */
2214 opts = qemu_opts_create(&qemu_device_opts, NULL, 0);
2215 qemu_opt_set(opts, "driver", "virtio-blk-pci");
2216 qemu_opt_set(opts, "drive", dinfo->id);
2217 if (devaddr)
2218 qemu_opt_set(opts, "addr", devaddr);
2219 break;
aae9460e
PB		 2220 case IF_COUNT:
2221 abort();
e4bcb14c 2222 }
9dfd7c7a 2223 if (!file) {
751c6a17
GH		 2224 *fatal_error = 0;
2225 return NULL;
2226 }
33f00271 2227 bdrv_flags = 0;
9f7965c7 2228 if (snapshot) {
33f00271 2229 bdrv_flags |= BDRV_O_SNAPSHOT;
9f7965c7
AL		 2230 cache = 2; /* always use write-back with snapshot */
2231 }
2232 if (cache == 0) /* no caching */
2233 bdrv_flags |= BDRV_O_NOCACHE;
2234 else if (cache == 2) /* write-back */
2235 bdrv_flags |= BDRV_O_CACHE_WB;
5c6c3a6c
CH		 2236
2237 if (aio == 1) {
2238 bdrv_flags |= BDRV_O_NATIVE_AIO;
2239 } else {
2240 bdrv_flags &= ~BDRV_O_NATIVE_AIO;
2241 }
2242
1dae12e6 2243 if (bdrv_open2(dinfo->bdrv, file, bdrv_flags, drv) < 0) {
e4bcb14c
TS		 2244 fprintf(stderr, "qemu: could not open disk image %s\n",
2245 file);
751c6a17 2246 return NULL;
e4bcb14c 2247 }
5c6c3a6c 2248
1dae12e6 2249 if (bdrv_key_required(dinfo->bdrv))
c0f4ce77 2250 autostart = 0;
751c6a17
GH		 2251 *fatal_error = 0;
2252 return dinfo;
e4bcb14c
TS		 2253}
2254
9dfd7c7a
GH		 2255static int drive_init_func(QemuOpts *opts, void *opaque)
2256{
2257 QEMUMachine *machine = opaque;
2258 int fatal_error = 0;
2259
2260 if (drive_init(opts, machine, &fatal_error) == NULL) {
2261 if (fatal_error)
2262 return 1;
2263 }
2264 return 0;
2265}
2266
2267static int drive_enable_snapshot(QemuOpts *opts, void *opaque)
2268{
2269 if (NULL == qemu_opt_get(opts, "snapshot")) {
2270 qemu_opt_set(opts, "snapshot", "on");
2271 }
2272 return 0;
2273}
2274
76e30d0f
JK		 2275void qemu_register_boot_set(QEMUBootSetHandler *func, void *opaque)
2276{
2277 boot_set_handler = func;
2278 boot_set_opaque = opaque;
2279}
2280
2281int qemu_boot_set(const char *boot_devices)
2282{
2283 if (!boot_set_handler) {
2284 return -EINVAL;
2285 }
2286 return boot_set_handler(boot_set_opaque, boot_devices);
2287}
2288
ef3adf68
JK		 2289static int parse_bootdevices(char *devices)
2290{
2291 /* We just do some generic consistency checks */
2292 const char *p;
2293 int bitmap = 0;
2294
2295 for (p = devices; *p != '\0'; p++) {
2296 /* Allowed boot devices are:
2297 * a-b: floppy disk drives
2298 * c-f: IDE disk drives
2299 * g-m: machine implementation dependant drives
2300 * n-p: network devices
2301 * It's up to each machine implementation to check if the given boot
2302 * devices match the actual hardware implementation and firmware
2303 * features.
2304 */
2305 if (*p < 'a' || *p > 'p') {
2306 fprintf(stderr, "Invalid boot device '%c'\n", *p);
2307 exit(1);
2308 }
2309 if (bitmap & (1 << (*p - 'a'))) {
2310 fprintf(stderr, "Boot device '%c' was given twice\n", *p);
2311 exit(1);
2312 }
2313 bitmap |= 1 << (*p - 'a');
2314 }
2315 return bitmap;
2316}
2317
e0f084bf
JK		 2318static void restore_boot_devices(void *opaque)
2319{
2320 char *standard_boot_devices = opaque;
2321
2322 qemu_boot_set(standard_boot_devices);
2323
2324 qemu_unregister_reset(restore_boot_devices, standard_boot_devices);
2325 qemu_free(standard_boot_devices);
2326}
2327
268a362c
AL		 2328static void numa_add(const char *optarg)
2329{
2330 char option[128];
2331 char *endptr;
2332 unsigned long long value, endvalue;
2333 int nodenr;
2334
2335 optarg = get_opt_name(option, 128, optarg, ',') + 1;
2336 if (!strcmp(option, "node")) {
2337 if (get_param_value(option, 128, "nodeid", optarg) == 0) {
2338 nodenr = nb_numa_nodes;
2339 } else {
2340 nodenr = strtoull(option, NULL, 10);
2341 }
2342
2343 if (get_param_value(option, 128, "mem", optarg) == 0) {
2344 node_mem[nodenr] = 0;
2345 } else {
2346 value = strtoull(option, &endptr, 0);
2347 switch (*endptr) {
2348 case 0: case 'M': case 'm':
2349 value <<= 20;
2350 break;
2351 case 'G': case 'g':
2352 value <<= 30;
2353 break;
2354 }
2355 node_mem[nodenr] = value;
2356 }
2357 if (get_param_value(option, 128, "cpus", optarg) == 0) {
2358 node_cpumask[nodenr] = 0;
2359 } else {
2360 value = strtoull(option, &endptr, 10);
2361 if (value >= 64) {
2362 value = 63;
2363 fprintf(stderr, "only 64 CPUs in NUMA mode supported.\n");
2364 } else {
2365 if (*endptr == '-') {
2366 endvalue = strtoull(endptr+1, &endptr, 10);
2367 if (endvalue >= 63) {
2368 endvalue = 62;
2369 fprintf(stderr,
2370 "only 63 CPUs in NUMA mode supported.\n");
2371 }
2372 value = (1 << (endvalue + 1)) - (1 << value);
2373 } else {
2374 value = 1 << value;
2375 }
2376 }
2377 node_cpumask[nodenr] = value;
2378 }
2379 nb_numa_nodes++;
2380 }
2381 return;
2382}
2383
dc6b1c09
AP		 2384static void smp_parse(const char *optarg)
2385{
2386 int smp, sockets = 0, threads = 0, cores = 0;
2387 char *endptr;
2388 char option[128];
2389
2390 smp = strtoul(optarg, &endptr, 10);
2391 if (endptr != optarg) {
2392 if (*endptr == ',') {
2393 endptr++;
2394 }
2395 }
2396 if (get_param_value(option, 128, "sockets", endptr) != 0)
2397 sockets = strtoull(option, NULL, 10);
2398 if (get_param_value(option, 128, "cores", endptr) != 0)
2399 cores = strtoull(option, NULL, 10);
2400 if (get_param_value(option, 128, "threads", endptr) != 0)
2401 threads = strtoull(option, NULL, 10);
2402 if (get_param_value(option, 128, "maxcpus", endptr) != 0)
2403 max_cpus = strtoull(option, NULL, 10);
2404
2405 /* compute missing values, prefer sockets over cores over threads */
2406 if (smp == 0 || sockets == 0) {
2407 sockets = sockets > 0 ? sockets : 1;
2408 cores = cores > 0 ? cores : 1;
2409 threads = threads > 0 ? threads : 1;
2410 if (smp == 0) {
2411 smp = cores * threads * sockets;
2412 } else {
2413 sockets = smp / (cores * threads);
2414 }
2415 } else {
2416 if (cores == 0) {
2417 threads = threads > 0 ? threads : 1;
2418 cores = smp / (sockets * threads);
2419 } else {
2420 if (sockets == 0) {
2421 sockets = smp / (cores * threads);
2422 } else {
2423 threads = smp / (cores * sockets);
2424 }
2425 }
2426 }
2427 smp_cpus = smp;
2428 smp_cores = cores > 0 ? cores : 1;
2429 smp_threads = threads > 0 ? threads : 1;
2430 if (max_cpus == 0)
2431 max_cpus = smp_cpus;
2432}
2433
a594cfbf
FB		 2434/***********************************************************/
2435/* USB devices */
2436
bb5fc20f
AL		 2437static void usb_msd_password_cb(void *opaque, int err)
2438{
2439 USBDevice *dev = opaque;
2440
2441 if (!err)
a5d2f727 2442 usb_device_attach(dev);
bb5fc20f 2443 else
806b6024 2444 dev->info->handle_destroy(dev);
bb5fc20f
AL		 2445}
2446
a5d2f727
GH		 2447static struct {
2448 const char *name;
2449 const char *qdev;
2450} usbdevs[] = {
2451 {
2452 .name = "mouse",
2453 .qdev = "QEMU USB Mouse",
2454 },{
2455 .name = "tablet",
2456 .qdev = "QEMU USB Tablet",
2457 },{
2458 .name = "keyboard",
2459 .qdev = "QEMU USB Keyboard",
2460 },{
2461 .name = "wacom-tablet",
2462 .qdev = "QEMU PenPartner Tablet",
2463 }
2464};
2465
c0f4ce77 2466static int usb_device_add(const char *devname, int is_hotplug)
a594cfbf
FB		 2467{
2468 const char *p;
a5d2f727
GH		 2469 USBBus *bus = usb_bus_find(-1 /* any */);
2470 USBDevice *dev = NULL;
2471 int i;
a594cfbf 2472
a5d2f727 2473 if (!usb_enabled)
a594cfbf
FB		 2474 return -1;
2475
a5d2f727
GH		 2476 /* simple devices which don't need extra care */
2477 for (i = 0; i < ARRAY_SIZE(usbdevs); i++) {
2478 if (strcmp(devname, usbdevs[i].name) != 0)
2479 continue;
2480 dev = usb_create_simple(bus, usbdevs[i].qdev);
2481 goto done;
2482 }
2483
2484 /* the other ones */
a594cfbf
FB		 2485 if (strstart(devname, "host:", &p)) {
2486 dev = usb_host_device_open(p);
2e5d83bb 2487 } else if (strstart(devname, "disk:", &p)) {
c0f4ce77
AL		 2488 BlockDriverState *bs;
2489
bb5fc20f 2490 dev = usb_msd_init(p);
c0f4ce77
AL		 2491 if (!dev)
2492 return -1;
bb5fc20f 2493 bs = usb_msd_get_bdrv(dev);
c0f4ce77
AL		 2494 if (bdrv_key_required(bs)) {
2495 autostart = 0;
bb5fc20f 2496 if (is_hotplug) {
376253ec
AL		 2497 monitor_read_bdrv_key_start(cur_mon, bs, usb_msd_password_cb,
2498 dev);
bb5fc20f 2499 return 0;
c0f4ce77
AL		 2500 }
2501 }
a7954218
AZ		 2502 } else if (strstart(devname, "serial:", &p)) {
2503 dev = usb_serial_init(p);
2e4d9fb1
AJ		 2504#ifdef CONFIG_BRLAPI
2505 } else if (!strcmp(devname, "braille")) {
2506 dev = usb_baum_init();
2507#endif
6c9f886c 2508 } else if (strstart(devname, "net:", &p)) {
9ad97e65 2509 int nic = nb_nics;
6c9f886c 2510
10ae5a7a 2511 if (net_client_init(NULL, "nic", p) < 0)
6c9f886c 2512 return -1;
9ad97e65
AZ		 2513 nd_table[nic].model = "usb";
2514 dev = usb_net_init(&nd_table[nic]);
dc72ac14
AZ		 2515 } else if (!strcmp(devname, "bt") || strstart(devname, "bt:", &p)) {
2516 dev = usb_bt_init(devname[2] ? hci_init(p) :
2517 bt_new_hci(qemu_find_bt_vlan(0)));
a594cfbf
FB		 2518 } else {
2519 return -1;
2520 }
0d92ed30
PB		 2521 if (!dev)
2522 return -1;
2523
a5d2f727 2524done:
a594cfbf
FB		 2525 return 0;
2526}
2527
1f3870ab
AL		 2528static int usb_device_del(const char *devname)
2529{
2530 int bus_num, addr;
2531 const char *p;
2532
5d0c5750
AL		 2533 if (strstart(devname, "host:", &p))
2534 return usb_host_device_close(p);
2535
a5d2f727 2536 if (!usb_enabled)
1f3870ab
AL		 2537 return -1;
2538
2539 p = strchr(devname, '.');
2540 if (!p)
2541 return -1;
2542 bus_num = strtoul(devname, NULL, 0);
2543 addr = strtoul(p + 1, NULL, 0);
2544
a5d2f727 2545 return usb_device_delete_addr(bus_num, addr);
1f3870ab
AL		 2546}
2547
bd3c948d
GH		 2548static int usb_parse(const char *cmdline)
2549{
2550 return usb_device_add(cmdline, 0);
2551}
2552
d54908a5 2553void do_usb_add(Monitor *mon, const QDict *qdict)
a594cfbf 2554{
d54908a5 2555 usb_device_add(qdict_get_str(qdict, "devname"), 1);
a594cfbf
FB		 2556}
2557
d54908a5 2558void do_usb_del(Monitor *mon, const QDict *qdict)
a594cfbf 2559{
d54908a5 2560 usb_device_del(qdict_get_str(qdict, "devname"));
a594cfbf
FB		 2561}
2562
201a51fc
AZ		 2563/***********************************************************/
2564/* PCMCIA/Cardbus */
2565
2566static struct pcmcia_socket_entry_s {
bc24a225 2567 PCMCIASocket *socket;
201a51fc
AZ		 2568 struct pcmcia_socket_entry_s *next;
2569} *pcmcia_sockets = 0;
2570
bc24a225 2571void pcmcia_socket_register(PCMCIASocket *socket)
201a51fc
AZ		 2572{
2573 struct pcmcia_socket_entry_s *entry;
2574
2575 entry = qemu_malloc(sizeof(struct pcmcia_socket_entry_s));
2576 entry->socket = socket;
2577 entry->next = pcmcia_sockets;
2578 pcmcia_sockets = entry;
2579}
2580
bc24a225 2581void pcmcia_socket_unregister(PCMCIASocket *socket)
201a51fc
AZ		 2582{
2583 struct pcmcia_socket_entry_s *entry, **ptr;
2584
2585 ptr = &pcmcia_sockets;
2586 for (entry = *ptr; entry; ptr = &entry->next, entry = *ptr)
2587 if (entry->socket == socket) {
2588 *ptr = entry->next;
2589 qemu_free(entry);
2590 }
2591}
2592
376253ec 2593void pcmcia_info(Monitor *mon)
201a51fc
AZ		 2594{
2595 struct pcmcia_socket_entry_s *iter;
376253ec 2596
201a51fc 2597 if (!pcmcia_sockets)
376253ec 2598 monitor_printf(mon, "No PCMCIA sockets\n");
201a51fc
AZ		 2599
2600 for (iter = pcmcia_sockets; iter; iter = iter->next)
376253ec
AL		 2601 monitor_printf(mon, "%s: %s\n", iter->socket->slot_string,
2602 iter->socket->attached ? iter->socket->card_string :
2603 "Empty");
201a51fc
AZ		 2604}
2605
2ff89790 2606/***********************************************************/
3023f332
AL		 2607/* register display */
2608
7b5d76da
AL		 2609struct DisplayAllocator default_allocator = {
2610 defaultallocator_create_displaysurface,
2611 defaultallocator_resize_displaysurface,
2612 defaultallocator_free_displaysurface
2613};
2614
3023f332
AL		 2615void register_displaystate(DisplayState *ds)
2616{
2617 DisplayState **s;
2618 s = &display_state;
2619 while (*s != NULL)
2620 s = &(*s)->next;
2621 ds->next = NULL;
2622 *s = ds;
2623}
2624
2625DisplayState *get_displaystate(void)
2626{
2627 return display_state;
2628}
2629
7b5d76da
AL		 2630DisplayAllocator *register_displayallocator(DisplayState *ds, DisplayAllocator *da)
2631{
2632 if(ds->allocator == &default_allocator) ds->allocator = da;
2633 return ds->allocator;
2634}
2635
2ff89790
TS		 2636/* dumb display */
2637
8f391ab4 2638static void dumb_display_init(void)
2ff89790 2639{
8f391ab4 2640 DisplayState *ds = qemu_mallocz(sizeof(DisplayState));
7b5d76da
AL		 2641 ds->allocator = &default_allocator;
2642 ds->surface = qemu_create_displaysurface(ds, 640, 480);
8f391ab4 2643 register_displaystate(ds);
2ff89790
TS		 2644}
2645
8a7ddc38
FB		 2646/***********************************************************/
2647/* I/O handling */
0824d6fc 2648
c4b1fcc0
FB		 2649typedef struct IOHandlerRecord {
2650 int fd;
7c9d8e07
FB		 2651 IOCanRWHandler *fd_read_poll;
2652 IOHandler *fd_read;
2653 IOHandler *fd_write;
cafffd40 2654 int deleted;
c4b1fcc0
FB		 2655 void *opaque;
2656 /* temporary data */
2657 struct pollfd *ufd;
8a7ddc38 2658 struct IOHandlerRecord *next;
c4b1fcc0
FB		 2659} IOHandlerRecord;
2660
8a7ddc38 2661static IOHandlerRecord *first_io_handler;
c4b1fcc0 2662
7c9d8e07
FB		 2663/* XXX: fd_read_poll should be suppressed, but an API change is
2664 necessary in the character devices to suppress fd_can_read(). */
5fafdf24
TS		 2665int qemu_set_fd_handler2(int fd,
2666 IOCanRWHandler *fd_read_poll,
2667 IOHandler *fd_read,
2668 IOHandler *fd_write,
7c9d8e07 2669 void *opaque)
c4b1fcc0 2670{
7c9d8e07 2671 IOHandlerRecord **pioh, *ioh;
c4b1fcc0 2672
7c9d8e07
FB		 2673 if (!fd_read && !fd_write) {
2674 pioh = &first_io_handler;
2675 for(;;) {
2676 ioh = *pioh;
2677 if (ioh == NULL)
2678 break;
2679 if (ioh->fd == fd) {
cafffd40 2680 ioh->deleted = 1;
7c9d8e07
FB		 2681 break;
2682 }
2683 pioh = &ioh->next;
2684 }
2685 } else {
2686 for(ioh = first_io_handler; ioh != NULL; ioh = ioh->next) {
2687 if (ioh->fd == fd)
2688 goto found;
2689 }
2690 ioh = qemu_mallocz(sizeof(IOHandlerRecord));
7c9d8e07
FB		 2691 ioh->next = first_io_handler;
2692 first_io_handler = ioh;
2693 found:
2694 ioh->fd = fd;
2695 ioh->fd_read_poll = fd_read_poll;
2696 ioh->fd_read = fd_read;
2697 ioh->fd_write = fd_write;
2698 ioh->opaque = opaque;
cafffd40 2699 ioh->deleted = 0;
7c9d8e07 2700 }
c4b1fcc0
FB		 2701 return 0;
2702}
2703
5fafdf24
TS		 2704int qemu_set_fd_handler(int fd,
2705 IOHandler *fd_read,
2706 IOHandler *fd_write,
7c9d8e07 2707 void *opaque)
8a7ddc38 2708{
7c9d8e07 2709 return qemu_set_fd_handler2(fd, NULL, fd_read, fd_write, opaque);
8a7ddc38
FB		 2710}
2711
56f3a5d0 2712#ifdef _WIN32
f331110f
FB		 2713/***********************************************************/
2714/* Polling handling */
2715
2716typedef struct PollingEntry {
2717 PollingFunc *func;
2718 void *opaque;
2719 struct PollingEntry *next;
2720} PollingEntry;
2721
2722static PollingEntry *first_polling_entry;
2723
2724int qemu_add_polling_cb(PollingFunc *func, void *opaque)
2725{
2726 PollingEntry **ppe, *pe;
2727 pe = qemu_mallocz(sizeof(PollingEntry));
f331110f
FB		 2728 pe->func = func;
2729 pe->opaque = opaque;
2730 for(ppe = &first_polling_entry; *ppe != NULL; ppe = &(*ppe)->next);
2731 *ppe = pe;
2732 return 0;
2733}
2734
2735void qemu_del_polling_cb(PollingFunc *func, void *opaque)
2736{
2737 PollingEntry **ppe, *pe;
2738 for(ppe = &first_polling_entry; *ppe != NULL; ppe = &(*ppe)->next) {
2739 pe = *ppe;
2740 if (pe->func == func && pe->opaque == opaque) {
2741 *ppe = pe->next;
2742 qemu_free(pe);
2743 break;
2744 }
2745 }
2746}
2747
a18e524a
FB		 2748/***********************************************************/
2749/* Wait objects support */
2750typedef struct WaitObjects {
2751 int num;
2752 HANDLE events[MAXIMUM_WAIT_OBJECTS + 1];
2753 WaitObjectFunc *func[MAXIMUM_WAIT_OBJECTS + 1];
2754 void *opaque[MAXIMUM_WAIT_OBJECTS + 1];
2755} WaitObjects;
2756
2757static WaitObjects wait_objects = {0};
3b46e624 2758
a18e524a
FB		 2759int qemu_add_wait_object(HANDLE handle, WaitObjectFunc *func, void *opaque)
2760{
2761 WaitObjects *w = &wait_objects;
2762
2763 if (w->num >= MAXIMUM_WAIT_OBJECTS)
2764 return -1;
2765 w->events[w->num] = handle;
2766 w->func[w->num] = func;
2767 w->opaque[w->num] = opaque;
2768 w->num++;
2769 return 0;
2770}
2771
2772void qemu_del_wait_object(HANDLE handle, WaitObjectFunc *func, void *opaque)
2773{
2774 int i, found;
2775 WaitObjects *w = &wait_objects;
2776
2777 found = 0;
2778 for (i = 0; i < w->num; i++) {
2779 if (w->events[i] == handle)
2780 found = 1;
2781 if (found) {
2782 w->events[i] = w->events[i + 1];
2783 w->func[i] = w->func[i + 1];
2784 w->opaque[i] = w->opaque[i + 1];
3b46e624 2785 }
a18e524a
FB		 2786 }
2787 if (found)
2788 w->num--;
2789}
2790#endif
2791
8a7ddc38
FB		 2792/***********************************************************/
2793/* ram save/restore */
2794
8a7ddc38
FB		 2795static int ram_get_page(QEMUFile *f, uint8_t *buf, int len)
2796{
2797 int v;
2798
2799 v = qemu_get_byte(f);
2800 switch(v) {
2801 case 0:
2802 if (qemu_get_buffer(f, buf, len) != len)
2803 return -EIO;
2804 break;
2805 case 1:
2806 v = qemu_get_byte(f);
2807 memset(buf, v, len);
2808 break;
2809 default:
2810 return -EINVAL;
2811 }
871d2f07
AL		 2812
2813 if (qemu_file_has_error(f))
2814 return -EIO;
2815
8a7ddc38
FB		 2816 return 0;
2817}
2818
c88676f8
FB		 2819static int ram_load_v1(QEMUFile *f, void *opaque)
2820{
00f82b8a
AJ		 2821 int ret;
2822 ram_addr_t i;
c88676f8 2823
94a6b54f 2824 if (qemu_get_be32(f) != last_ram_offset)
c88676f8 2825 return -EINVAL;
94a6b54f 2826 for(i = 0; i < last_ram_offset; i+= TARGET_PAGE_SIZE) {
5579c7f3 2827 ret = ram_get_page(f, qemu_get_ram_ptr(i), TARGET_PAGE_SIZE);
c88676f8
FB		 2828 if (ret)
2829 return ret;
2830 }
2831 return 0;
2832}
2833
2834#define BDRV_HASH_BLOCK_SIZE 1024
2835#define IOBUF_SIZE 4096
2836#define RAM_CBLOCK_MAGIC 0xfabe
2837
c88676f8
FB		 2838typedef struct RamDecompressState {
2839 z_stream zstream;
2840 QEMUFile *f;
2841 uint8_t buf[IOBUF_SIZE];
2842} RamDecompressState;
2843
2844static int ram_decompress_open(RamDecompressState *s, QEMUFile *f)
2845{
2846 int ret;
2847 memset(s, 0, sizeof(*s));
2848 s->f = f;
2849 ret = inflateInit(&s->zstream);
2850 if (ret != Z_OK)
2851 return -1;
2852 return 0;
2853}
2854
2855static int ram_decompress_buf(RamDecompressState *s, uint8_t *buf, int len)
2856{
2857 int ret, clen;
2858
2859 s->zstream.avail_out = len;
2860 s->zstream.next_out = buf;
2861 while (s->zstream.avail_out > 0) {
2862 if (s->zstream.avail_in == 0) {
2863 if (qemu_get_be16(s->f) != RAM_CBLOCK_MAGIC)
2864 return -1;
2865 clen = qemu_get_be16(s->f);
2866 if (clen > IOBUF_SIZE)
2867 return -1;
2868 qemu_get_buffer(s->f, s->buf, clen);
2869 s->zstream.avail_in = clen;
2870 s->zstream.next_in = s->buf;
2871 }
2872 ret = inflate(&s->zstream, Z_PARTIAL_FLUSH);
2873 if (ret != Z_OK && ret != Z_STREAM_END) {
2874 return -1;
2875 }
2876 }
2877 return 0;
2878}
2879
2880static void ram_decompress_close(RamDecompressState *s)
2881{
2882 inflateEnd(&s->zstream);
2883}
2884
475e4277
AL		 2885#define RAM_SAVE_FLAG_FULL 0x01
2886#define RAM_SAVE_FLAG_COMPRESS 0x02
2887#define RAM_SAVE_FLAG_MEM_SIZE 0x04
2888#define RAM_SAVE_FLAG_PAGE 0x08
2889#define RAM_SAVE_FLAG_EOS 0x10
2890
2891static int is_dup_page(uint8_t *page, uint8_t ch)
8a7ddc38 2892{
475e4277
AL		 2893 uint32_t val = ch << 24 | ch << 16 | ch << 8 | ch;
2894 uint32_t *array = (uint32_t *)page;
2895 int i;
3b46e624 2896
475e4277
AL		 2897 for (i = 0; i < (TARGET_PAGE_SIZE / 4); i++) {
2898 if (array[i] != val)
2899 return 0;
2900 }
2901
2902 return 1;
2903}
2904
2905static int ram_save_block(QEMUFile *f)
2906{
2907 static ram_addr_t current_addr = 0;
2908 ram_addr_t saved_addr = current_addr;
2909 ram_addr_t addr = 0;
2910 int found = 0;
2911
94a6b54f 2912 while (addr < last_ram_offset) {
475e4277 2913 if (cpu_physical_memory_get_dirty(current_addr, MIGRATION_DIRTY_FLAG)) {
5579c7f3 2914 uint8_t *p;
475e4277
AL		 2915
2916 cpu_physical_memory_reset_dirty(current_addr,
2917 current_addr + TARGET_PAGE_SIZE,
2918 MIGRATION_DIRTY_FLAG);
2919
5579c7f3 2920 p = qemu_get_ram_ptr(current_addr);
475e4277 2921
5579c7f3 2922 if (is_dup_page(p, *p)) {
475e4277 2923 qemu_put_be64(f, current_addr | RAM_SAVE_FLAG_COMPRESS);
5579c7f3 2924 qemu_put_byte(f, *p);
475e4277
AL		 2925 } else {
2926 qemu_put_be64(f, current_addr | RAM_SAVE_FLAG_PAGE);
5579c7f3 2927 qemu_put_buffer(f, p, TARGET_PAGE_SIZE);
c88676f8 2928 }
475e4277
AL		 2929
2930 found = 1;
2931 break;
c88676f8 2932 }
475e4277 2933 addr += TARGET_PAGE_SIZE;
94a6b54f 2934 current_addr = (saved_addr + addr) % last_ram_offset;
8a7ddc38 2935 }
475e4277
AL		 2936
2937 return found;
8a7ddc38
FB		 2938}
2939
9f9e28cd 2940static uint64_t bytes_transferred = 0;
475e4277
AL		 2941
2942static ram_addr_t ram_save_remaining(void)
2943{
2944 ram_addr_t addr;
2945 ram_addr_t count = 0;
2946
94a6b54f 2947 for (addr = 0; addr < last_ram_offset; addr += TARGET_PAGE_SIZE) {
475e4277
AL		 2948 if (cpu_physical_memory_get_dirty(addr, MIGRATION_DIRTY_FLAG))
2949 count++;
2950 }
2951
2952 return count;
2953}
2954
9f9e28cd
GC		 2955uint64_t ram_bytes_remaining(void)
2956{
2957 return ram_save_remaining() * TARGET_PAGE_SIZE;
2958}
2959
2960uint64_t ram_bytes_transferred(void)
2961{
2962 return bytes_transferred;
2963}
2964
2965uint64_t ram_bytes_total(void)
2966{
2967 return last_ram_offset;
2968}
2969
475e4277
AL		 2970static int ram_save_live(QEMUFile *f, int stage, void *opaque)
2971{
2972 ram_addr_t addr;
a0a3fd60
GC		 2973 uint64_t bytes_transferred_last;
2974 double bwidth = 0;
2975 uint64_t expected_time = 0;
475e4277 2976
9fa06385 2977 if (cpu_physical_sync_dirty_bitmap(0, TARGET_PHYS_ADDR_MAX) != 0) {
b0a46a33
JK		 2978 qemu_file_set_error(f);
2979 return 0;
2980 }
2981
475e4277
AL		 2982 if (stage == 1) {
2983 /* Make sure all dirty bits are set */
94a6b54f 2984 for (addr = 0; addr < last_ram_offset; addr += TARGET_PAGE_SIZE) {
475e4277
AL		 2985 if (!cpu_physical_memory_get_dirty(addr, MIGRATION_DIRTY_FLAG))
2986 cpu_physical_memory_set_dirty(addr);
2987 }
b0a46a33 2988
475e4277
AL		 2989 /* Enable dirty memory tracking */
2990 cpu_physical_memory_set_dirty_tracking(1);
2991
94a6b54f 2992 qemu_put_be64(f, last_ram_offset | RAM_SAVE_FLAG_MEM_SIZE);
475e4277
AL		 2993 }
2994
a0a3fd60
GC		 2995 bytes_transferred_last = bytes_transferred;
2996 bwidth = get_clock();
2997
475e4277
AL		 2998 while (!qemu_file_rate_limit(f)) {
2999 int ret;
3000
3001 ret = ram_save_block(f);
9f9e28cd 3002 bytes_transferred += ret * TARGET_PAGE_SIZE;
475e4277
AL		 3003 if (ret == 0) /* no more blocks */
3004 break;
3005 }
3006
a0a3fd60
GC		 3007 bwidth = get_clock() - bwidth;
3008 bwidth = (bytes_transferred - bytes_transferred_last) / bwidth;
3009
3010 /* if we haven't transferred anything this round, force expected_time to a
3011 * a very high value, but without crashing */
3012 if (bwidth == 0)
3013 bwidth = 0.000001;
3014
475e4277
AL		 3015 /* try transferring iterative blocks of memory */
3016
3017 if (stage == 3) {
475e4277
AL		 3018
3019 /* flush all remaining blocks regardless of rate limiting */
9f9e28cd
GC		 3020 while (ram_save_block(f) != 0) {
3021 bytes_transferred += TARGET_PAGE_SIZE;
3022 }
8215e914 3023 cpu_physical_memory_set_dirty_tracking(0);
475e4277
AL		 3024 }
3025
3026 qemu_put_be64(f, RAM_SAVE_FLAG_EOS);
3027
a0a3fd60
GC		 3028 expected_time = ram_save_remaining() * TARGET_PAGE_SIZE / bwidth;
3029
3030 return (stage == 2) && (expected_time <= migrate_max_downtime());
475e4277
AL		 3031}
3032
3033static int ram_load_dead(QEMUFile *f, void *opaque)
8a7ddc38 3034{
c88676f8
FB		 3035 RamDecompressState s1, *s = &s1;
3036 uint8_t buf[10];
00f82b8a 3037 ram_addr_t i;
8a7ddc38 3038
c88676f8
FB		 3039 if (ram_decompress_open(s, f) < 0)
3040 return -EINVAL;
94a6b54f 3041 for(i = 0; i < last_ram_offset; i+= BDRV_HASH_BLOCK_SIZE) {
c88676f8
FB		 3042 if (ram_decompress_buf(s, buf, 1) < 0) {
3043 fprintf(stderr, "Error while reading ram block header\n");
3044 goto error;
3045 }
3046 if (buf[0] == 0) {
5579c7f3
PB		 3047 if (ram_decompress_buf(s, qemu_get_ram_ptr(i),
3048 BDRV_HASH_BLOCK_SIZE) < 0) {
00f82b8a 3049 fprintf(stderr, "Error while reading ram block address=0x%08" PRIx64, (uint64_t)i);
c88676f8
FB		 3050 goto error;
3051 }
475e4277 3052 } else {
c88676f8
FB		 3053 error:
3054 printf("Error block header\n");
3055 return -EINVAL;
3056 }
8a7ddc38 3057 }
c88676f8 3058 ram_decompress_close(s);
475e4277
AL		 3059
3060 return 0;
3061}
3062
3063static int ram_load(QEMUFile *f, void *opaque, int version_id)
3064{
3065 ram_addr_t addr;
3066 int flags;
3067
3068 if (version_id == 1)
3069 return ram_load_v1(f, opaque);
3070
3071 if (version_id == 2) {
94a6b54f 3072 if (qemu_get_be32(f) != last_ram_offset)
475e4277
AL		 3073 return -EINVAL;
3074 return ram_load_dead(f, opaque);
3075 }
3076
3077 if (version_id != 3)
3078 return -EINVAL;
3079
3080 do {
3081 addr = qemu_get_be64(f);
3082
3083 flags = addr & ~TARGET_PAGE_MASK;
3084 addr &= TARGET_PAGE_MASK;
3085
3086 if (flags & RAM_SAVE_FLAG_MEM_SIZE) {
94a6b54f 3087 if (addr != last_ram_offset)
475e4277
AL		 3088 return -EINVAL;
3089 }
3090
3091 if (flags & RAM_SAVE_FLAG_FULL) {
3092 if (ram_load_dead(f, opaque) < 0)
3093 return -EINVAL;
3094 }
3095
3096 if (flags & RAM_SAVE_FLAG_COMPRESS) {
3097 uint8_t ch = qemu_get_byte(f);
779c6bef
AL		 3098 memset(qemu_get_ram_ptr(addr), ch, TARGET_PAGE_SIZE);
3099#ifndef _WIN32
30868442
AL		 3100 if (ch == 0 &&
3101 (!kvm_enabled() || kvm_has_sync_mmu())) {
3102 madvise(qemu_get_ram_ptr(addr), TARGET_PAGE_SIZE, MADV_DONTNEED);
779c6bef 3103 }
30868442 3104#endif
475e4277 3105 } else if (flags & RAM_SAVE_FLAG_PAGE)
5579c7f3 3106 qemu_get_buffer(f, qemu_get_ram_ptr(addr), TARGET_PAGE_SIZE);
475e4277
AL		 3107 } while (!(flags & RAM_SAVE_FLAG_EOS));
3108
8a7ddc38
FB		 3109 return 0;
3110}
3111
9e472e10
AL		 3112void qemu_service_io(void)
3113{
d9f75a4e 3114 qemu_notify_event();
9e472e10
AL		 3115}
3116
83f64091
FB		 3117/***********************************************************/
3118/* bottom halves (can be seen as timers which expire ASAP) */
3119
3120struct QEMUBH {
3121 QEMUBHFunc *cb;
3122 void *opaque;
3123 int scheduled;
1b435b10
AL		 3124 int idle;
3125 int deleted;
83f64091
FB		 3126 QEMUBH *next;
3127};
3128
3129static QEMUBH *first_bh = NULL;
3130
3131QEMUBH *qemu_bh_new(QEMUBHFunc *cb, void *opaque)
3132{
3133 QEMUBH *bh;
3134 bh = qemu_mallocz(sizeof(QEMUBH));
83f64091
FB		 3135 bh->cb = cb;
3136 bh->opaque = opaque;
1b435b10
AL		 3137 bh->next = first_bh;
3138 first_bh = bh;
83f64091
FB		 3139 return bh;
3140}
3141
6eb5733a 3142int qemu_bh_poll(void)
83f64091 3143{
1b435b10 3144 QEMUBH *bh, **bhp;
6eb5733a 3145 int ret;
83f64091 3146
6eb5733a 3147 ret = 0;
1b435b10
AL		 3148 for (bh = first_bh; bh; bh = bh->next) {
3149 if (!bh->deleted && bh->scheduled) {
3150 bh->scheduled = 0;
3151 if (!bh->idle)
3152 ret = 1;
3153 bh->idle = 0;
3154 bh->cb(bh->opaque);
3155 }
83f64091 3156 }
1b435b10
AL		 3157
3158 /* remove deleted bhs */
3159 bhp = &first_bh;
3160 while (*bhp) {
3161 bh = *bhp;
3162 if (bh->deleted) {
3163 *bhp = bh->next;
3164 qemu_free(bh);
3165 } else
3166 bhp = &bh->next;
3167 }
3168
6eb5733a 3169 return ret;
83f64091
FB		 3170}
3171
1b435b10
AL		 3172void qemu_bh_schedule_idle(QEMUBH *bh)
3173{
3174 if (bh->scheduled)
3175 return;
3176 bh->scheduled = 1;
3177 bh->idle = 1;
3178}
3179
83f64091
FB		 3180void qemu_bh_schedule(QEMUBH *bh)
3181{
83f64091
FB		 3182 if (bh->scheduled)
3183 return;
3184 bh->scheduled = 1;
1b435b10 3185 bh->idle = 0;
83f64091 3186 /* stop the currently executing CPU to execute the BH ASAP */
d9f75a4e 3187 qemu_notify_event();
83f64091
FB		 3188}
3189
3190void qemu_bh_cancel(QEMUBH *bh)
3191{
1b435b10 3192 bh->scheduled = 0;
83f64091
FB		 3193}
3194
3195void qemu_bh_delete(QEMUBH *bh)
3196{
1b435b10
AL		 3197 bh->scheduled = 0;
3198 bh->deleted = 1;
83f64091
FB		 3199}
3200
56f3a5d0
AL		 3201static void qemu_bh_update_timeout(int *timeout)
3202{
3203 QEMUBH *bh;
3204
3205 for (bh = first_bh; bh; bh = bh->next) {
3206 if (!bh->deleted && bh->scheduled) {
3207 if (bh->idle) {
3208 /* idle bottom halves will be polled at least
3209 * every 10ms */
3210 *timeout = MIN(10, *timeout);
3211 } else {
3212 /* non-idle bottom halves will be executed
3213 * immediately */
3214 *timeout = 0;
3215 break;
3216 }
3217 }
3218 }
3219}
3220
cc1daa40
FB		 3221/***********************************************************/
3222/* machine registration */
3223
bdaf78e0 3224static QEMUMachine *first_machine = NULL;
6f338c34 3225QEMUMachine *current_machine = NULL;
cc1daa40
FB		 3226
3227int qemu_register_machine(QEMUMachine *m)
3228{
3229 QEMUMachine **pm;
3230 pm = &first_machine;
3231 while (*pm != NULL)
3232 pm = &(*pm)->next;
3233 m->next = NULL;
3234 *pm = m;
3235 return 0;
3236}
3237
9596ebb7 3238static QEMUMachine *find_machine(const char *name)
cc1daa40
FB		 3239{
3240 QEMUMachine *m;
3241
3242 for(m = first_machine; m != NULL; m = m->next) {
3243 if (!strcmp(m->name, name))
3244 return m;
3f6599e6
MM		 3245 if (m->alias && !strcmp(m->alias, name))
3246 return m;
cc1daa40
FB		 3247 }
3248 return NULL;
3249}
3250
0c257437
AL		 3251static QEMUMachine *find_default_machine(void)
3252{
3253 QEMUMachine *m;
3254
3255 for(m = first_machine; m != NULL; m = m->next) {
3256 if (m->is_default) {
3257 return m;
3258 }
3259 }
3260 return NULL;
3261}
3262
8a7ddc38
FB		 3263/***********************************************************/
3264/* main execution loop */
3265
9596ebb7 3266static void gui_update(void *opaque)
8a7ddc38 3267{
7d957bd8 3268 uint64_t interval = GUI_REFRESH_INTERVAL;
740733bb 3269 DisplayState *ds = opaque;
7d957bd8
AL		 3270 DisplayChangeListener *dcl = ds->listeners;
3271
3272 dpy_refresh(ds);
3273
3274 while (dcl != NULL) {
3275 if (dcl->gui_timer_interval &&
3276 dcl->gui_timer_interval < interval)
3277 interval = dcl->gui_timer_interval;
3278 dcl = dcl->next;
3279 }
3280 qemu_mod_timer(ds->gui_timer, interval + qemu_get_clock(rt_clock));
8a7ddc38
FB		 3281}
3282
9043b62d
BS		 3283static void nographic_update(void *opaque)
3284{
3285 uint64_t interval = GUI_REFRESH_INTERVAL;
3286
3287 qemu_mod_timer(nographic_timer, interval + qemu_get_clock(rt_clock));
3288}
3289
0bd48850
FB		 3290struct vm_change_state_entry {
3291 VMChangeStateHandler *cb;
3292 void *opaque;
3293 LIST_ENTRY (vm_change_state_entry) entries;
3294};
3295
3296static LIST_HEAD(vm_change_state_head, vm_change_state_entry) vm_change_state_head;
3297
3298VMChangeStateEntry *qemu_add_vm_change_state_handler(VMChangeStateHandler *cb,
3299 void *opaque)
3300{
3301 VMChangeStateEntry *e;
3302
3303 e = qemu_mallocz(sizeof (*e));
0bd48850
FB		 3304
3305 e->cb = cb;
3306 e->opaque = opaque;
3307 LIST_INSERT_HEAD(&vm_change_state_head, e, entries);
3308 return e;
3309}
3310
3311void qemu_del_vm_change_state_handler(VMChangeStateEntry *e)
3312{
3313 LIST_REMOVE (e, entries);
3314 qemu_free (e);
3315}
3316
9781e040 3317static void vm_state_notify(int running, int reason)
0bd48850
FB		 3318{
3319 VMChangeStateEntry *e;
3320
3321 for (e = vm_change_state_head.lh_first; e; e = e->entries.le_next) {
9781e040 3322 e->cb(e->opaque, running, reason);
0bd48850
FB		 3323 }
3324}
3325
d6dc3d42
AL		 3326static void resume_all_vcpus(void);
3327static void pause_all_vcpus(void);
3328
8a7ddc38
FB		 3329void vm_start(void)
3330{
3331 if (!vm_running) {
3332 cpu_enable_ticks();
3333 vm_running = 1;
9781e040 3334 vm_state_notify(1, 0);
efe75411 3335 qemu_rearm_alarm_timer(alarm_timer);
d6dc3d42 3336 resume_all_vcpus();
8a7ddc38
FB		 3337 }
3338}
3339
bb0c6722
FB		 3340/* reset/shutdown handler */
3341
3342typedef struct QEMUResetEntry {
55ddfe8e 3343 TAILQ_ENTRY(QEMUResetEntry) entry;
bb0c6722
FB		 3344 QEMUResetHandler *func;
3345 void *opaque;
bb0c6722
FB		 3346} QEMUResetEntry;
3347
55ddfe8e
JK		 3348static TAILQ_HEAD(reset_handlers, QEMUResetEntry) reset_handlers =
3349 TAILQ_HEAD_INITIALIZER(reset_handlers);
bb0c6722
FB		 3350static int reset_requested;
3351static int shutdown_requested;
3475187d 3352static int powerdown_requested;
e568902a 3353static int debug_requested;
6e29f5da 3354static int vmstop_requested;
bb0c6722 3355
cf7a2fe2
AJ		 3356int qemu_shutdown_requested(void)
3357{
3358 int r = shutdown_requested;
3359 shutdown_requested = 0;
3360 return r;
3361}
3362
3363int qemu_reset_requested(void)
3364{
3365 int r = reset_requested;
3366 reset_requested = 0;
3367 return r;
3368}
3369
3370int qemu_powerdown_requested(void)
3371{
3372 int r = powerdown_requested;
3373 powerdown_requested = 0;
3374 return r;
3375}
3376
e568902a
AL		 3377static int qemu_debug_requested(void)
3378{
3379 int r = debug_requested;
3380 debug_requested = 0;
3381 return r;
3382}
3383
6e29f5da
AL		 3384static int qemu_vmstop_requested(void)
3385{
3386 int r = vmstop_requested;
3387 vmstop_requested = 0;
3388 return r;
3389}
3390
3391static void do_vm_stop(int reason)
3392{
3393 if (vm_running) {
3394 cpu_disable_ticks();
3395 vm_running = 0;
d6dc3d42 3396 pause_all_vcpus();
6e29f5da
AL		 3397 vm_state_notify(0, reason);
3398 }
3399}
3400
a08d4367 3401void qemu_register_reset(QEMUResetHandler *func, void *opaque)
bb0c6722 3402{
55ddfe8e 3403 QEMUResetEntry *re = qemu_mallocz(sizeof(QEMUResetEntry));
bb0c6722 3404
bb0c6722
FB		 3405 re->func = func;
3406 re->opaque = opaque;
55ddfe8e 3407 TAILQ_INSERT_TAIL(&reset_handlers, re, entry);
bb0c6722
FB		 3408}
3409
dda9b29f 3410void qemu_unregister_reset(QEMUResetHandler *func, void *opaque)
bb0c6722
FB		 3411{
3412 QEMUResetEntry *re;
3413
55ddfe8e 3414 TAILQ_FOREACH(re, &reset_handlers, entry) {
dda9b29f
JK		 3415 if (re->func == func && re->opaque == opaque) {
3416 TAILQ_REMOVE(&reset_handlers, re, entry);
3417 qemu_free(re);
3418 return;
3419 }
3420 }
3421}
3422
3423void qemu_system_reset(void)
3424{
3425 QEMUResetEntry *re, *nre;
3426
3427 /* reset all devices */
3428 TAILQ_FOREACH_SAFE(re, &reset_handlers, entry, nre) {
bb0c6722
FB		 3429 re->func(re->opaque);
3430 }
3431}
3432
3433void qemu_system_reset_request(void)
3434{
d1beab82
FB		 3435 if (no_reboot) {
3436 shutdown_requested = 1;
3437 } else {
3438 reset_requested = 1;
3439 }
d9f75a4e 3440 qemu_notify_event();
bb0c6722
FB		 3441}
3442
3443void qemu_system_shutdown_request(void)
3444{
3445 shutdown_requested = 1;
d9f75a4e 3446 qemu_notify_event();
bb0c6722
FB		 3447}
3448
3475187d
FB		 3449void qemu_system_powerdown_request(void)
3450{
3451 powerdown_requested = 1;
d9f75a4e
AL		 3452 qemu_notify_event();
3453}
3454
d6dc3d42
AL		 3455#ifdef CONFIG_IOTHREAD
3456static void qemu_system_vmstop_request(int reason)
d9f75a4e 3457{
d6dc3d42
AL		 3458 vmstop_requested = reason;
3459 qemu_notify_event();
bb0c6722 3460}
d6dc3d42 3461#endif
bb0c6722 3462
50317c7f
AL		 3463#ifndef _WIN32
3464static int io_thread_fd = -1;
3465
3466static void qemu_event_increment(void)
3fcf7b6b 3467{
50317c7f
AL		 3468 static const char byte = 0;
3469
3470 if (io_thread_fd == -1)
3471 return;
3472
3473 write(io_thread_fd, &byte, sizeof(byte));
3474}
3475
3476static void qemu_event_read(void *opaque)
3477{
3478 int fd = (unsigned long)opaque;
3479 ssize_t len;
3480
3481 /* Drain the notify pipe */
3482 do {
3483 char buffer[512];
3484 len = read(fd, buffer, sizeof(buffer));
3485 } while ((len == -1 && errno == EINTR) || len > 0);
3486}
3487
3488static int qemu_event_init(void)
3489{
3490 int err;
3491 int fds[2];
3492
3493 err = pipe(fds);
3494 if (err == -1)
3495 return -errno;
3496
3497 err = fcntl_setfl(fds[0], O_NONBLOCK);
3498 if (err < 0)
3499 goto fail;
3500
3501 err = fcntl_setfl(fds[1], O_NONBLOCK);
3502 if (err < 0)
3503 goto fail;
3504
3505 qemu_set_fd_handler2(fds[0], NULL, qemu_event_read, NULL,
3506 (void *)(unsigned long)fds[0]);
3507
3508 io_thread_fd = fds[1];
a7e21219
JK		 3509 return 0;
3510
50317c7f
AL		 3511fail:
3512 close(fds[0]);
3513 close(fds[1]);
3514 return err;
3515}
3516#else
3517HANDLE qemu_event_handle;
3518
3519static void dummy_event_handler(void *opaque)
3520{
3521}
3522
3523static int qemu_event_init(void)
3524{
3525 qemu_event_handle = CreateEvent(NULL, FALSE, FALSE, NULL);
3526 if (!qemu_event_handle) {
3527 perror("Failed CreateEvent");
3528 return -1;
3529 }
3530 qemu_add_wait_object(qemu_event_handle, dummy_event_handler, NULL);
3fcf7b6b
AL		 3531 return 0;
3532}
3533
50317c7f
AL		 3534static void qemu_event_increment(void)
3535{
3536 SetEvent(qemu_event_handle);
3537}
3538#endif
3539
d6dc3d42
AL		 3540static int cpu_can_run(CPUState *env)
3541{
3542 if (env->stop)
3543 return 0;
3544 if (env->stopped)
3545 return 0;
3546 return 1;
3547}
3548
3549#ifndef CONFIG_IOTHREAD
50317c7f
AL		 3550static int qemu_init_main_loop(void)
3551{
3552 return qemu_event_init();
3553}
3554
0bf46a40
AL		 3555void qemu_init_vcpu(void *_env)
3556{
3557 CPUState *env = _env;
3558
3559 if (kvm_enabled())
3560 kvm_init_vcpu(env);
dc6b1c09
AP		 3561 env->nr_cores = smp_cores;
3562 env->nr_threads = smp_threads;
0bf46a40
AL		 3563 return;
3564}
3565
8edac960
AL		 3566int qemu_cpu_self(void *env)
3567{
3568 return 1;
3569}
3570
d6dc3d42
AL		 3571static void resume_all_vcpus(void)
3572{
3573}
3574
3575static void pause_all_vcpus(void)
3576{
3577}
3578
8edac960
AL		 3579void qemu_cpu_kick(void *env)
3580{
3581 return;
3582}
3583
d6dc3d42
AL		 3584void qemu_notify_event(void)
3585{
3586 CPUState *env = cpu_single_env;
3587
3588 if (env) {
3589 cpu_exit(env);
4a1418e0 3590 }
d6dc3d42
AL		 3591}
3592
4870852c
AL		 3593#define qemu_mutex_lock_iothread() do { } while (0)
3594#define qemu_mutex_unlock_iothread() do { } while (0)
3595
6e29f5da
AL		 3596void vm_stop(int reason)
3597{
3598 do_vm_stop(reason);
3599}
3600
d6dc3d42
AL		 3601#else /* CONFIG_IOTHREAD */
3602
3603#include "qemu-thread.h"
3604
3605QemuMutex qemu_global_mutex;
3606static QemuMutex qemu_fair_mutex;
3607
3608static QemuThread io_thread;
3609
3610static QemuThread *tcg_cpu_thread;
3611static QemuCond *tcg_halt_cond;
3612
3613static int qemu_system_ready;
3614/* cpu creation */
3615static QemuCond qemu_cpu_cond;
3616/* system init */
3617static QemuCond qemu_system_cond;
3618static QemuCond qemu_pause_cond;
3619
3620static void block_io_signals(void);
3621static void unblock_io_signals(void);
3622static int tcg_has_work(void);
3623
3624static int qemu_init_main_loop(void)
3625{
3626 int ret;
3627
3628 ret = qemu_event_init();
3629 if (ret)
3630 return ret;
3631
3632 qemu_cond_init(&qemu_pause_cond);
3633 qemu_mutex_init(&qemu_fair_mutex);
3634 qemu_mutex_init(&qemu_global_mutex);
3635 qemu_mutex_lock(&qemu_global_mutex);
3636
3637 unblock_io_signals();
3638 qemu_thread_self(&io_thread);
3639
3640 return 0;
3641}
3642
3643static void qemu_wait_io_event(CPUState *env)
3644{
3645 while (!tcg_has_work())
3646 qemu_cond_timedwait(env->halt_cond, &qemu_global_mutex, 1000);
3647
3648 qemu_mutex_unlock(&qemu_global_mutex);
3649
3650 /*
3651 * Users of qemu_global_mutex can be starved, having no chance
3652 * to acquire it since this path will get to it first.
3653 * So use another lock to provide fairness.
3654 */
3655 qemu_mutex_lock(&qemu_fair_mutex);
3656 qemu_mutex_unlock(&qemu_fair_mutex);
3657
3658 qemu_mutex_lock(&qemu_global_mutex);
3659 if (env->stop) {
3660 env->stop = 0;
3661 env->stopped = 1;
3662 qemu_cond_signal(&qemu_pause_cond);
3663 }
3664}
3665
3666static int qemu_cpu_exec(CPUState *env);
3667
3668static void *kvm_cpu_thread_fn(void *arg)
3669{
3670 CPUState *env = arg;
3671
3672 block_io_signals();
3673 qemu_thread_self(env->thread);
321c1cb1
JCD		 3674 if (kvm_enabled())
3675 kvm_init_vcpu(env);
d6dc3d42
AL		 3676
3677 /* signal CPU creation */
3678 qemu_mutex_lock(&qemu_global_mutex);
3679 env->created = 1;
3680 qemu_cond_signal(&qemu_cpu_cond);
3681
3682 /* and wait for machine initialization */
3683 while (!qemu_system_ready)
3684 qemu_cond_timedwait(&qemu_system_cond, &qemu_global_mutex, 100);
3685
3686 while (1) {
3687 if (cpu_can_run(env))
3688 qemu_cpu_exec(env);
1c3173b9 3689 qemu_wait_io_event(env);
d6dc3d42
AL		 3690 }
3691
3692 return NULL;
3693}
3694
3695static void tcg_cpu_exec(void);
3696
3697static void *tcg_cpu_thread_fn(void *arg)
3698{
3699 CPUState *env = arg;
3700
3701 block_io_signals();
3702 qemu_thread_self(env->thread);
3703
3704 /* signal CPU creation */
3705 qemu_mutex_lock(&qemu_global_mutex);
3706 for (env = first_cpu; env != NULL; env = env->next_cpu)
3707 env->created = 1;
3708 qemu_cond_signal(&qemu_cpu_cond);
3709
3710 /* and wait for machine initialization */
3711 while (!qemu_system_ready)
3712 qemu_cond_timedwait(&qemu_system_cond, &qemu_global_mutex, 100);
3713
3714 while (1) {
3715 tcg_cpu_exec();
3716 qemu_wait_io_event(cur_cpu);
3717 }
3718
3719 return NULL;
3720}
3721
3722void qemu_cpu_kick(void *_env)
3723{
3724 CPUState *env = _env;
3725 qemu_cond_broadcast(env->halt_cond);
3726 if (kvm_enabled())
3727 qemu_thread_signal(env->thread, SIGUSR1);
3728}
3729
3730int qemu_cpu_self(void *env)
3731{
3732 return (cpu_single_env != NULL);
3733}
3734
3735static void cpu_signal(int sig)
3736{
3737 if (cpu_single_env)
3738 cpu_exit(cpu_single_env);
3739}
3740
3741static void block_io_signals(void)
3742{
3743 sigset_t set;
3744 struct sigaction sigact;
3745
3746 sigemptyset(&set);
3747 sigaddset(&set, SIGUSR2);
3748 sigaddset(&set, SIGIO);
3749 sigaddset(&set, SIGALRM);
3750 pthread_sigmask(SIG_BLOCK, &set, NULL);
3751
3752 sigemptyset(&set);
3753 sigaddset(&set, SIGUSR1);
3754 pthread_sigmask(SIG_UNBLOCK, &set, NULL);
3755
3756 memset(&sigact, 0, sizeof(sigact));
3757 sigact.sa_handler = cpu_signal;
3758 sigaction(SIGUSR1, &sigact, NULL);
3759}
3760
3761static void unblock_io_signals(void)
3762{
3763 sigset_t set;
3764
3765 sigemptyset(&set);
3766 sigaddset(&set, SIGUSR2);
3767 sigaddset(&set, SIGIO);
3768 sigaddset(&set, SIGALRM);
3769 pthread_sigmask(SIG_UNBLOCK, &set, NULL);
3770
3771 sigemptyset(&set);
3772 sigaddset(&set, SIGUSR1);
3773 pthread_sigmask(SIG_BLOCK, &set, NULL);
3774}
3775
3776static void qemu_signal_lock(unsigned int msecs)
3777{
3778 qemu_mutex_lock(&qemu_fair_mutex);
3779
3780 while (qemu_mutex_trylock(&qemu_global_mutex)) {
3781 qemu_thread_signal(tcg_cpu_thread, SIGUSR1);
3782 if (!qemu_mutex_timedlock(&qemu_global_mutex, msecs))
3783 break;
3784 }
3785 qemu_mutex_unlock(&qemu_fair_mutex);
3786}
3787
3788static void qemu_mutex_lock_iothread(void)
3789{
3790 if (kvm_enabled()) {
3791 qemu_mutex_lock(&qemu_fair_mutex);
3792 qemu_mutex_lock(&qemu_global_mutex);
3793 qemu_mutex_unlock(&qemu_fair_mutex);
3794 } else
3795 qemu_signal_lock(100);
3796}
3797
3798static void qemu_mutex_unlock_iothread(void)
3799{
3800 qemu_mutex_unlock(&qemu_global_mutex);
3801}
3802
3803static int all_vcpus_paused(void)
3804{
3805 CPUState *penv = first_cpu;
3806
3807 while (penv) {
3808 if (!penv->stopped)
3809 return 0;
3810 penv = (CPUState *)penv->next_cpu;
3811 }
3812
3813 return 1;
3814}
3815
3816static void pause_all_vcpus(void)
3817{
3818 CPUState *penv = first_cpu;
3819
3820 while (penv) {
3821 penv->stop = 1;
3822 qemu_thread_signal(penv->thread, SIGUSR1);
3823 qemu_cpu_kick(penv);
3824 penv = (CPUState *)penv->next_cpu;
3825 }
3826
3827 while (!all_vcpus_paused()) {
3828 qemu_cond_timedwait(&qemu_pause_cond, &qemu_global_mutex, 100);
3829 penv = first_cpu;
3830 while (penv) {
3831 qemu_thread_signal(penv->thread, SIGUSR1);
3832 penv = (CPUState *)penv->next_cpu;
3833 }
3834 }
3835}
3836
3837static void resume_all_vcpus(void)
3838{
3839 CPUState *penv = first_cpu;
3840
3841 while (penv) {
3842 penv->stop = 0;
3843 penv->stopped = 0;
3844 qemu_thread_signal(penv->thread, SIGUSR1);
3845 qemu_cpu_kick(penv);
3846 penv = (CPUState *)penv->next_cpu;
3847 }
3848}
3849
3850static void tcg_init_vcpu(void *_env)
3851{
3852 CPUState *env = _env;
3853 /* share a single thread for all cpus with TCG */
3854 if (!tcg_cpu_thread) {
3855 env->thread = qemu_mallocz(sizeof(QemuThread));
3856 env->halt_cond = qemu_mallocz(sizeof(QemuCond));
3857 qemu_cond_init(env->halt_cond);
3858 qemu_thread_create(env->thread, tcg_cpu_thread_fn, env);
3859 while (env->created == 0)
3860 qemu_cond_timedwait(&qemu_cpu_cond, &qemu_global_mutex, 100);
3861 tcg_cpu_thread = env->thread;
3862 tcg_halt_cond = env->halt_cond;
3863 } else {
3864 env->thread = tcg_cpu_thread;
3865 env->halt_cond = tcg_halt_cond;
3866 }
3867}
3868
3869static void kvm_start_vcpu(CPUState *env)
3870{
d6dc3d42
AL		 3871 env->thread = qemu_mallocz(sizeof(QemuThread));
3872 env->halt_cond = qemu_mallocz(sizeof(QemuCond));
3873 qemu_cond_init(env->halt_cond);
3874 qemu_thread_create(env->thread, kvm_cpu_thread_fn, env);
3875 while (env->created == 0)
3876 qemu_cond_timedwait(&qemu_cpu_cond, &qemu_global_mutex, 100);
3877}
3878
3879void qemu_init_vcpu(void *_env)
3880{
3881 CPUState *env = _env;
3882
3883 if (kvm_enabled())
3884 kvm_start_vcpu(env);
3885 else
3886 tcg_init_vcpu(env);
dc6b1c09
AP		 3887 env->nr_cores = smp_cores;
3888 env->nr_threads = smp_threads;
d6dc3d42
AL		 3889}
3890
3891void qemu_notify_event(void)
3892{
3893 qemu_event_increment();
3894}
3895
3896void vm_stop(int reason)
3897{
3898 QemuThread me;
3899 qemu_thread_self(&me);
3900
3901 if (!qemu_thread_equal(&me, &io_thread)) {
3902 qemu_system_vmstop_request(reason);
3903 /*
3904 * FIXME: should not return to device code in case
3905 * vm_stop() has been requested.
3906 */
3907 if (cpu_single_env) {
3908 cpu_exit(cpu_single_env);
3909 cpu_single_env->stop = 1;
3910 }
3911 return;
3912 }
3913 do_vm_stop(reason);
3914}
3915
3916#endif
3917
3918
877cf882 3919#ifdef _WIN32
69d6451c 3920static void host_main_loop_wait(int *timeout)
56f3a5d0
AL		 3921{
3922 int ret, ret2, i;
f331110f
FB		 3923 PollingEntry *pe;
3924
c4b1fcc0 3925
f331110f
FB		 3926 /* XXX: need to suppress polling by better using win32 events */
3927 ret = 0;
3928 for(pe = first_polling_entry; pe != NULL; pe = pe->next) {
3929 ret |= pe->func(pe->opaque);
3930 }
e6b1e558 3931 if (ret == 0) {
a18e524a
FB		 3932 int err;
3933 WaitObjects *w = &wait_objects;
3b46e624 3934
56f3a5d0 3935 ret = WaitForMultipleObjects(w->num, w->events, FALSE, *timeout);
a18e524a
FB		 3936 if (WAIT_OBJECT_0 + 0 <= ret && ret <= WAIT_OBJECT_0 + w->num - 1) {
3937 if (w->func[ret - WAIT_OBJECT_0])
3938 w->func[ret - WAIT_OBJECT_0](w->opaque[ret - WAIT_OBJECT_0]);
3b46e624 3939
5fafdf24 3940 /* Check for additional signaled events */
e6b1e558 3941 for(i = (ret - WAIT_OBJECT_0 + 1); i < w->num; i++) {
3b46e624 3942
e6b1e558
TS		 3943 /* Check if event is signaled */
3944 ret2 = WaitForSingleObject(w->events[i], 0);
3945 if(ret2 == WAIT_OBJECT_0) {
3946 if (w->func[i])
3947 w->func[i](w->opaque[i]);
3948 } else if (ret2 == WAIT_TIMEOUT) {
3949 } else {
3950 err = GetLastError();
3951 fprintf(stderr, "WaitForSingleObject error %d %d\n", i, err);
3b46e624
TS		 3952 }
3953 }
a18e524a
FB		 3954 } else if (ret == WAIT_TIMEOUT) {
3955 } else {
3956 err = GetLastError();
e6b1e558 3957 fprintf(stderr, "WaitForMultipleObjects error %d %d\n", ret, err);
a18e524a 3958 }
f331110f 3959 }
56f3a5d0
AL		 3960
3961 *timeout = 0;
3962}
3963#else
69d6451c 3964static void host_main_loop_wait(int *timeout)
56f3a5d0
AL		 3965{
3966}
fd1dff4b 3967#endif
56f3a5d0
AL		 3968
3969void main_loop_wait(int timeout)
3970{
3971 IOHandlerRecord *ioh;
3972 fd_set rfds, wfds, xfds;
3973 int ret, nfds;
3974 struct timeval tv;
3975
3976 qemu_bh_update_timeout(&timeout);
3977
3978 host_main_loop_wait(&timeout);
3979
fd1dff4b
FB		 3980 /* poll any events */
3981 /* XXX: separate device handlers from system ones */
6abfbd79 3982 nfds = -1;
fd1dff4b
FB		 3983 FD_ZERO(&rfds);
3984 FD_ZERO(&wfds);
e035649e 3985 FD_ZERO(&xfds);
fd1dff4b 3986 for(ioh = first_io_handler; ioh != NULL; ioh = ioh->next) {
cafffd40
TS		 3987 if (ioh->deleted)
3988 continue;
fd1dff4b
FB		 3989 if (ioh->fd_read &&
3990 (!ioh->fd_read_poll ||
3991 ioh->fd_read_poll(ioh->opaque) != 0)) {
3992 FD_SET(ioh->fd, &rfds);
3993 if (ioh->fd > nfds)
3994 nfds = ioh->fd;
3995 }
3996 if (ioh->fd_write) {
3997 FD_SET(ioh->fd, &wfds);
3998 if (ioh->fd > nfds)
3999 nfds = ioh->fd;
4000 }
4001 }
3b46e624 4002
56f3a5d0
AL		 4003 tv.tv_sec = timeout / 1000;
4004 tv.tv_usec = (timeout % 1000) * 1000;
4005
d918f23e
JK		 4006 slirp_select_fill(&nfds, &rfds, &wfds, &xfds);
4007
4870852c 4008 qemu_mutex_unlock_iothread();
e035649e 4009 ret = select(nfds + 1, &rfds, &wfds, &xfds, &tv);
4870852c 4010 qemu_mutex_lock_iothread();
fd1dff4b 4011 if (ret > 0) {
cafffd40
TS		 4012 IOHandlerRecord **pioh;
4013
4014 for(ioh = first_io_handler; ioh != NULL; ioh = ioh->next) {
6ab43fdc 4015 if (!ioh->deleted && ioh->fd_read && FD_ISSET(ioh->fd, &rfds)) {
fd1dff4b 4016 ioh->fd_read(ioh->opaque);
7c9d8e07 4017 }
6ab43fdc 4018 if (!ioh->deleted && ioh->fd_write && FD_ISSET(ioh->fd, &wfds)) {
fd1dff4b 4019 ioh->fd_write(ioh->opaque);
c4b1fcc0 4020 }
b4608c04 4021 }
cafffd40
TS		 4022
4023 /* remove deleted IO handlers */
4024 pioh = &first_io_handler;
4025 while (*pioh) {
4026 ioh = *pioh;
4027 if (ioh->deleted) {
4028 *pioh = ioh->next;
4029 qemu_free(ioh);
5fafdf24 4030 } else
cafffd40
TS		 4031 pioh = &ioh->next;
4032 }
fd1dff4b 4033 }
d918f23e
JK		 4034
4035 slirp_select_poll(&rfds, &wfds, &xfds, (ret < 0));
b4608c04 4036
50317c7f
AL		 4037 /* rearm timer, if not periodic */
4038 if (alarm_timer->flags & ALARM_FLAG_EXPIRED) {
4039 alarm_timer->flags &= ~ALARM_FLAG_EXPIRED;
4040 qemu_rearm_alarm_timer(alarm_timer);
4041 }
4042
357c692c 4043 /* vm time timers */
d6dc3d42
AL		 4044 if (vm_running) {
4045 if (!cur_cpu || likely(!(cur_cpu->singlestep_enabled & SSTEP_NOTIMER)))
4046 qemu_run_timers(&active_timers[QEMU_TIMER_VIRTUAL],
4047 qemu_get_clock(vm_clock));
4048 }
357c692c
AL		 4049
4050 /* real time timers */
4051 qemu_run_timers(&active_timers[QEMU_TIMER_REALTIME],
4052 qemu_get_clock(rt_clock));
4053
423f0742
PB		 4054 /* Check bottom-halves last in case any of the earlier events triggered
4055 them. */
4056 qemu_bh_poll();
3b46e624 4057
5905b2e5
FB		 4058}
4059
43b96858 4060static int qemu_cpu_exec(CPUState *env)
5905b2e5 4061{
43b96858 4062 int ret;
89bfc105
FB		 4063#ifdef CONFIG_PROFILER
4064 int64_t ti;
4065#endif
5905b2e5 4066
89bfc105 4067#ifdef CONFIG_PROFILER
43b96858 4068 ti = profile_getclock();
89bfc105 4069#endif
43b96858
AL		 4070 if (use_icount) {
4071 int64_t count;
4072 int decr;
4073 qemu_icount -= (env->icount_decr.u16.low + env->icount_extra);
4074 env->icount_decr.u16.low = 0;
4075 env->icount_extra = 0;
4076 count = qemu_next_deadline();
4077 count = (count + (1 << icount_time_shift) - 1)
4078 >> icount_time_shift;
4079 qemu_icount += count;
4080 decr = (count > 0xffff) ? 0xffff : count;
4081 count -= decr;
4082 env->icount_decr.u16.low = decr;
4083 env->icount_extra = count;
4084 }
4085 ret = cpu_exec(env);
89bfc105 4086#ifdef CONFIG_PROFILER
43b96858 4087 qemu_time += profile_getclock() - ti;
89bfc105 4088#endif
43b96858
AL		 4089 if (use_icount) {
4090 /* Fold pending instructions back into the
4091 instruction counter, and clear the interrupt flag. */
4092 qemu_icount -= (env->icount_decr.u16.low
4093 + env->icount_extra);
4094 env->icount_decr.u32 = 0;
4095 env->icount_extra = 0;
4096 }
4097 return ret;
4098}
4099
e6e35b1e
AL		 4100static void tcg_cpu_exec(void)
4101{
d6dc3d42 4102 int ret = 0;
e6e35b1e
AL		 4103
4104 if (next_cpu == NULL)
4105 next_cpu = first_cpu;
4106 for (; next_cpu != NULL; next_cpu = next_cpu->next_cpu) {
4107 CPUState *env = cur_cpu = next_cpu;
4108
4109 if (!vm_running)
4110 break;
4111 if (timer_alarm_pending) {
4112 timer_alarm_pending = 0;
4113 break;
4114 }
d6dc3d42
AL		 4115 if (cpu_can_run(env))
4116 ret = qemu_cpu_exec(env);
e6e35b1e
AL		 4117 if (ret == EXCP_DEBUG) {
4118 gdb_set_stop_cpu(env);
4119 debug_requested = 1;
4120 break;
4121 }
4122 }
4123}
4124
43b96858
AL		 4125static int cpu_has_work(CPUState *env)
4126{
d6dc3d42
AL		 4127 if (env->stop)
4128 return 1;
4129 if (env->stopped)
4130 return 0;
43b96858
AL		 4131 if (!env->halted)
4132 return 1;
4133 if (qemu_cpu_has_work(env))
4134 return 1;
4135 return 0;
4136}
4137
4138static int tcg_has_work(void)
4139{
4140 CPUState *env;
4141
4142 for (env = first_cpu; env != NULL; env = env->next_cpu)
4143 if (cpu_has_work(env))
4144 return 1;
4145 return 0;
4146}
4147
4148static int qemu_calculate_timeout(void)
4149{
b319820d 4150#ifndef CONFIG_IOTHREAD
43b96858
AL		 4151 int timeout;
4152
4153 if (!vm_running)
4154 timeout = 5000;
4155 else if (tcg_has_work())
4156 timeout = 0;
4157 else if (!use_icount)
4158 timeout = 5000;
4159 else {
4160 /* XXX: use timeout computed from timers */
4161 int64_t add;
4162 int64_t delta;
4163 /* Advance virtual time to the next event. */
4164 if (use_icount == 1) {
4165 /* When not using an adaptive execution frequency
4166 we tend to get badly out of sync with real time,
4167 so just delay for a reasonable amount of time. */
4168 delta = 0;
4169 } else {
4170 delta = cpu_get_icount() - cpu_get_clock();
4171 }
4172 if (delta > 0) {
4173 /* If virtual time is ahead of real time then just
4174 wait for IO. */
4175 timeout = (delta / 1000000) + 1;
4176 } else {
4177 /* Wait for either IO to occur or the next
4178 timer event. */
4179 add = qemu_next_deadline();
4180 /* We advance the timer before checking for IO.
4181 Limit the amount we advance so that early IO
4182 activity won't get the guest too far ahead. */
4183 if (add > 10000000)
4184 add = 10000000;
4185 delta += add;
4186 add = (add + (1 << icount_time_shift) - 1)
4187 >> icount_time_shift;
4188 qemu_icount += add;
4189 timeout = delta / 1000000;
4190 if (timeout < 0)
4191 timeout = 0;
4192 }
4193 }
4194
4195 return timeout;
b319820d
LC		 4196#else /* CONFIG_IOTHREAD */
4197 return 1000;
4198#endif
43b96858
AL		 4199}
4200
4201static int vm_can_run(void)
4202{
4203 if (powerdown_requested)
4204 return 0;
4205 if (reset_requested)
4206 return 0;
4207 if (shutdown_requested)
4208 return 0;
e568902a
AL		 4209 if (debug_requested)
4210 return 0;
43b96858
AL		 4211 return 1;
4212}
4213
d9c32310
BS		 4214qemu_irq qemu_system_powerdown;
4215
43b96858
AL		 4216static void main_loop(void)
4217{
6e29f5da 4218 int r;
e6e35b1e 4219
d6dc3d42
AL		 4220#ifdef CONFIG_IOTHREAD
4221 qemu_system_ready = 1;
4222 qemu_cond_broadcast(&qemu_system_cond);
4223#endif
4224
6e29f5da 4225 for (;;) {
43b96858 4226 do {
e6e35b1e
AL		 4227#ifdef CONFIG_PROFILER
4228 int64_t ti;
4229#endif
d6dc3d42 4230#ifndef CONFIG_IOTHREAD
e6e35b1e 4231 tcg_cpu_exec();
d6dc3d42 4232#endif
89bfc105 4233#ifdef CONFIG_PROFILER
43b96858 4234 ti = profile_getclock();
89bfc105 4235#endif
43b96858 4236 main_loop_wait(qemu_calculate_timeout());
89bfc105 4237#ifdef CONFIG_PROFILER
43b96858 4238 dev_time += profile_getclock() - ti;
89bfc105 4239#endif
e568902a 4240 } while (vm_can_run());
43b96858 4241
e568902a
AL		 4242 if (qemu_debug_requested())
4243 vm_stop(EXCP_DEBUG);
43b96858
AL		 4244 if (qemu_shutdown_requested()) {
4245 if (no_shutdown) {
4246 vm_stop(0);
4247 no_shutdown = 0;
4248 } else
4249 break;
4250 }
d6dc3d42
AL		 4251 if (qemu_reset_requested()) {
4252 pause_all_vcpus();
43b96858 4253 qemu_system_reset();
d6dc3d42
AL		 4254 resume_all_vcpus();
4255 }
d9c32310
BS		 4256 if (qemu_powerdown_requested()) {
4257 qemu_irq_raise(qemu_system_powerdown);
4258 }
6e29f5da
AL		 4259 if ((r = qemu_vmstop_requested()))
4260 vm_stop(r);
b4608c04 4261 }
d6dc3d42 4262 pause_all_vcpus();
b4608c04
FB		 4263}
4264
9bd7e6d9
PB		 4265static void version(void)
4266{
4a19f1ec 4267 printf("QEMU PC emulator version " QEMU_VERSION QEMU_PKGVERSION ", Copyright (c) 2003-2008 Fabrice Bellard\n");
9bd7e6d9
PB		 4268}
4269
15f82208 4270static void help(int exitcode)
0824d6fc 4271{
9bd7e6d9
PB		 4272 version();
4273 printf("usage: %s [options] [disk_image]\n"
0824d6fc 4274 "\n"
a20dd508 4275 "'disk_image' is a raw hard image image for IDE hard disk 0\n"
fc01f7e7 4276 "\n"
5824d651
BS		 4277#define DEF(option, opt_arg, opt_enum, opt_help) \
4278 opt_help
4279#define DEFHEADING(text) stringify(text) "\n"
4280#include "qemu-options.h"
4281#undef DEF
4282#undef DEFHEADING
4283#undef GEN_DOCS
0824d6fc 4284 "\n"
82c643ff 4285 "During emulation, the following keys are useful:\n"
032a8c9e
FB		 4286 "ctrl-alt-f toggle full screen\n"
4287 "ctrl-alt-n switch to virtual console 'n'\n"
4288 "ctrl-alt toggle mouse and keyboard grab\n"
82c643ff
FB		 4289 "\n"
4290 "When using -nographic, press 'ctrl-a h' to get some help.\n"
4291 ,
0db63474 4292 "qemu",
a00bad7e 4293 DEFAULT_RAM_SIZE,
7c9d8e07 4294#ifndef _WIN32
a00bad7e 4295 DEFAULT_NETWORK_SCRIPT,
b46a8906 4296 DEFAULT_NETWORK_DOWN_SCRIPT,
7c9d8e07 4297#endif
6e44ba7f 4298 DEFAULT_GDBSTUB_PORT,
bce61846 4299 "/tmp/qemu.log");
15f82208 4300 exit(exitcode);
0824d6fc
FB		 4301}
4302
cd6f1169
FB		 4303#define HAS_ARG 0x0001
4304
4305enum {
5824d651
BS		 4306#define DEF(option, opt_arg, opt_enum, opt_help) \
4307 opt_enum,
4308#define DEFHEADING(text)
4309#include "qemu-options.h"
4310#undef DEF
4311#undef DEFHEADING
4312#undef GEN_DOCS
cd6f1169
FB		 4313};
4314
4315typedef struct QEMUOption {
4316 const char *name;
4317 int flags;
4318 int index;
4319} QEMUOption;
4320
dbed7e40 4321static const QEMUOption qemu_options[] = {
cd6f1169 4322 { "h", 0, QEMU_OPTION_h },
5824d651
BS		 4323#define DEF(option, opt_arg, opt_enum, opt_help) \
4324 { option, opt_arg, opt_enum },
4325#define DEFHEADING(text)
4326#include "qemu-options.h"
4327#undef DEF
4328#undef DEFHEADING
4329#undef GEN_DOCS
cd6f1169 4330 { NULL },
fc01f7e7
FB		 4331};
4332
1d14ffa9 4333#ifdef HAS_AUDIO
6a36d84e 4334struct soundhw soundhw[] = {
b00052e4 4335#ifdef HAS_AUDIO_CHOICE
4ce7ff6e 4336#if defined(TARGET_I386) || defined(TARGET_MIPS)
fd06c375
FB		 4337 {
4338 "pcspk",
4339 "PC speaker",
4340 0,
4341 1,
4342 { .init_isa = pcspk_audio_init }
4343 },
4344#endif
4c9b53e3 4345
4346#ifdef CONFIG_SB16
6a36d84e
FB		 4347 {
4348 "sb16",
4349 "Creative Sound Blaster 16",
4350 0,
4351 1,
4352 { .init_isa = SB16_init }
4353 },
4c9b53e3 4354#endif
6a36d84e 4355
cc53d26d 4356#ifdef CONFIG_CS4231A
4357 {
4358 "cs4231a",
4359 "CS4231A",
4360 0,
4361 1,
4362 { .init_isa = cs4231a_init }
4363 },
4364#endif
4365
1d14ffa9 4366#ifdef CONFIG_ADLIB
6a36d84e
FB		 4367 {
4368 "adlib",
1d14ffa9 4369#ifdef HAS_YMF262
6a36d84e 4370 "Yamaha YMF262 (OPL3)",
1d14ffa9 4371#else
6a36d84e 4372 "Yamaha YM3812 (OPL2)",
1d14ffa9 4373#endif
6a36d84e
FB		 4374 0,
4375 1,
4376 { .init_isa = Adlib_init }
4377 },
1d14ffa9 4378#endif
6a36d84e 4379
1d14ffa9 4380#ifdef CONFIG_GUS
6a36d84e
FB		 4381 {
4382 "gus",
4383 "Gravis Ultrasound GF1",
4384 0,
4385 1,
4386 { .init_isa = GUS_init }
4387 },
1d14ffa9 4388#endif
6a36d84e 4389
4c9b53e3 4390#ifdef CONFIG_AC97
e5c9a13e
AZ		 4391 {
4392 "ac97",
4393 "Intel 82801AA AC97 Audio",
4394 0,
4395 0,
4396 { .init_pci = ac97_init }
4397 },
4c9b53e3 4398#endif
e5c9a13e 4399
4c9b53e3 4400#ifdef CONFIG_ES1370
6a36d84e
FB		 4401 {
4402 "es1370",
4403 "ENSONIQ AudioPCI ES1370",
4404 0,
4405 0,
4406 { .init_pci = es1370_init }
4407 },
b00052e4 4408#endif
6a36d84e 4409
4c9b53e3 4410#endif /* HAS_AUDIO_CHOICE */
4411
6a36d84e
FB		 4412 { NULL, NULL, 0, 0, { NULL } }
4413};
4414
4415static void select_soundhw (const char *optarg)
4416{
4417 struct soundhw *c;
4418
4419 if (*optarg == '?') {
4420 show_valid_cards:
4421
4422 printf ("Valid sound card names (comma separated):\n");
4423 for (c = soundhw; c->name; ++c) {
4424 printf ("%-11s %s\n", c->name, c->descr);
4425 }
4426 printf ("\n-soundhw all will enable all of the above\n");
1d14ffa9
FB		 4427 exit (*optarg != '?');
4428 }
4429 else {
6a36d84e 4430 size_t l;
1d14ffa9
FB		 4431 const char *p;
4432 char *e;
4433 int bad_card = 0;
4434
6a36d84e
FB		 4435 if (!strcmp (optarg, "all")) {
4436 for (c = soundhw; c->name; ++c) {
4437 c->enabled = 1;
4438 }
4439 return;
4440 }
1d14ffa9 4441
6a36d84e 4442 p = optarg;
1d14ffa9
FB		 4443 while (*p) {
4444 e = strchr (p, ',');
4445 l = !e ? strlen (p) : (size_t) (e - p);
6a36d84e
FB		 4446
4447 for (c = soundhw; c->name; ++c) {
b3d6fb4a 4448 if (!strncmp (c->name, p, l) && !c->name[l]) {
6a36d84e 4449 c->enabled = 1;
1d14ffa9
FB		 4450 break;
4451 }
4452 }
6a36d84e
FB		 4453
4454 if (!c->name) {
1d14ffa9
FB		 4455 if (l > 80) {
4456 fprintf (stderr,
4457 "Unknown sound card name (too big to show)\n");
4458 }
4459 else {
4460 fprintf (stderr, "Unknown sound card name `%.*s'\n",
4461 (int) l, p);
4462 }
4463 bad_card = 1;
4464 }
4465 p += l + (e != NULL);
4466 }
4467
4468 if (bad_card)
4469 goto show_valid_cards;
4470 }
4471}
4472#endif
4473
3893c124 4474static void select_vgahw (const char *p)
4475{
4476 const char *opts;
4477
86176759 4478 vga_interface_type = VGA_NONE;
3893c124 4479 if (strstart(p, "std", &opts)) {
86176759 4480 vga_interface_type = VGA_STD;
3893c124 4481 } else if (strstart(p, "cirrus", &opts)) {
86176759 4482 vga_interface_type = VGA_CIRRUS;
3893c124 4483 } else if (strstart(p, "vmware", &opts)) {
86176759 4484 vga_interface_type = VGA_VMWARE;
94909d9f 4485 } else if (strstart(p, "xenfb", &opts)) {
86176759 4486 vga_interface_type = VGA_XENFB;
28b85ed8 4487 } else if (!strstart(p, "none", &opts)) {
3893c124 4488 invalid_vga:
4489 fprintf(stderr, "Unknown vga type: %s\n", p);
4490 exit(1);
4491 }
cb5a7aa8 4492 while (*opts) {
4493 const char *nextopt;
4494
4495 if (strstart(opts, ",retrace=", &nextopt)) {
4496 opts = nextopt;
4497 if (strstart(opts, "dumb", &nextopt))
4498 vga_retrace_method = VGA_RETRACE_DUMB;
4499 else if (strstart(opts, "precise", &nextopt))
4500 vga_retrace_method = VGA_RETRACE_PRECISE;
4501 else goto invalid_vga;
4502 } else goto invalid_vga;
4503 opts = nextopt;
4504 }
3893c124 4505}
4506
7d4c3d53
MA		 4507#ifdef TARGET_I386
4508static int balloon_parse(const char *arg)
4509{
382f0743 4510 QemuOpts *opts;
7d4c3d53 4511
382f0743
GH		 4512 if (strcmp(arg, "none") == 0) {
4513 return 0;
4514 }
4515
4516 if (!strncmp(arg, "virtio", 6)) {
4517 if (arg[6] == ',') {
4518 /* have params -> parse them */
4519 opts = qemu_opts_parse(&qemu_device_opts, arg+7, NULL);
4520 if (!opts)
4521 return -1;
4522 } else {
4523 /* create empty opts */
4524 opts = qemu_opts_create(&qemu_device_opts, NULL, 0);
7d4c3d53 4525 }
382f0743
GH		 4526 qemu_opt_set(opts, "driver", "virtio-balloon-pci");
4527 return 0;
7d4c3d53 4528 }
382f0743
GH		 4529
4530 return -1;
7d4c3d53
MA		 4531}
4532#endif
4533
3587d7e6
FB		 4534#ifdef _WIN32
4535static BOOL WINAPI qemu_ctrl_handler(DWORD type)
4536{
4537 exit(STATUS_CONTROL_C_EXIT);
4538 return TRUE;
4539}
4540#endif
4541
c4be29ff 4542int qemu_uuid_parse(const char *str, uint8_t *uuid)
8fcb1b90
BS		 4543{
4544 int ret;
4545
4546 if(strlen(str) != 36)
4547 return -1;
4548
4549 ret = sscanf(str, UUID_FMT, &uuid[0], &uuid[1], &uuid[2], &uuid[3],
4550 &uuid[4], &uuid[5], &uuid[6], &uuid[7], &uuid[8], &uuid[9],
4551 &uuid[10], &uuid[11], &uuid[12], &uuid[13], &uuid[14], &uuid[15]);
4552
4553 if(ret != 16)
4554 return -1;
4555
b6f6e3d3
AL		 4556#ifdef TARGET_I386
4557 smbios_add_field(1, offsetof(struct smbios_type_1, uuid), 16, uuid);
4558#endif
4559
8fcb1b90
BS		 4560 return 0;
4561}
4562
7c9d8e07 4563#define MAX_NET_CLIENTS 32
c20709aa 4564
5b08fc10
AL		 4565#ifndef _WIN32
4566
4567static void termsig_handler(int signal)
4568{
4569 qemu_system_shutdown_request();
4570}
4571
7c3370d4
JK		 4572static void sigchld_handler(int signal)
4573{
4574 waitpid(-1, NULL, WNOHANG);
4575}
4576
4577static void sighandler_setup(void)
5b08fc10
AL		 4578{
4579 struct sigaction act;
4580
4581 memset(&act, 0, sizeof(act));
4582 act.sa_handler = termsig_handler;
4583 sigaction(SIGINT, &act, NULL);
4584 sigaction(SIGHUP, &act, NULL);
4585 sigaction(SIGTERM, &act, NULL);
7c3370d4
JK		 4586
4587 act.sa_handler = sigchld_handler;
4588 act.sa_flags = SA_NOCLDSTOP;
4589 sigaction(SIGCHLD, &act, NULL);
5b08fc10
AL		 4590}
4591
4592#endif
4593
5cea8590
PB		 4594#ifdef _WIN32
4595/* Look for support files in the same directory as the executable. */
4596static char *find_datadir(const char *argv0)
4597{
4598 char *p;
4599 char buf[MAX_PATH];
4600 DWORD len;
4601
4602 len = GetModuleFileName(NULL, buf, sizeof(buf) - 1);
4603 if (len == 0) {
c5947808 4604 return NULL;
5cea8590
PB		 4605 }
4606
4607 buf[len] = 0;
4608 p = buf + len - 1;
4609 while (p != buf && *p != '\\')
4610 p--;
4611 *p = 0;
4612 if (access(buf, R_OK) == 0) {
4613 return qemu_strdup(buf);
4614 }
4615 return NULL;
4616}
4617#else /* !_WIN32 */
4618
4619/* Find a likely location for support files using the location of the binary.
4620 For installed binaries this will be "$bindir/../share/qemu". When
4621 running from the build tree this will be "$bindir/../pc-bios". */
4622#define SHARE_SUFFIX "/share/qemu"
4623#define BUILD_SUFFIX "/pc-bios"
4624static char *find_datadir(const char *argv0)
4625{
4626 char *dir;
4627 char *p = NULL;
4628 char *res;
5cea8590 4629 char buf[PATH_MAX];
3a41759d 4630 size_t max_len;
5cea8590
PB		 4631
4632#if defined(__linux__)
4633 {
4634 int len;
4635 len = readlink("/proc/self/exe", buf, sizeof(buf) - 1);
4636 if (len > 0) {
4637 buf[len] = 0;
4638 p = buf;
4639 }
4640 }
4641#elif defined(__FreeBSD__)
4642 {
4643 int len;
4644 len = readlink("/proc/curproc/file", buf, sizeof(buf) - 1);
4645 if (len > 0) {
4646 buf[len] = 0;
4647 p = buf;
4648 }
4649 }
4650#endif
4651 /* If we don't have any way of figuring out the actual executable
4652 location then try argv[0]. */
4653 if (!p) {
4d224196 4654 p = realpath(argv0, buf);
5cea8590
PB		 4655 if (!p) {
4656 return NULL;
4657 }
4658 }
4659 dir = dirname(p);
4660 dir = dirname(dir);
4661
3a41759d
BS		 4662 max_len = strlen(dir) +
4663 MAX(strlen(SHARE_SUFFIX), strlen(BUILD_SUFFIX)) + 1;
4664 res = qemu_mallocz(max_len);
4665 snprintf(res, max_len, "%s%s", dir, SHARE_SUFFIX);
5cea8590 4666 if (access(res, R_OK)) {
3a41759d 4667 snprintf(res, max_len, "%s%s", dir, BUILD_SUFFIX);
5cea8590
PB		 4668 if (access(res, R_OK)) {
4669 qemu_free(res);
4670 res = NULL;
4671 }
4672 }
4d224196 4673
5cea8590
PB		 4674 return res;
4675}
4676#undef SHARE_SUFFIX
4677#undef BUILD_SUFFIX
4678#endif
4679
4680char *qemu_find_file(int type, const char *name)
4681{
4682 int len;
4683 const char *subdir;
4684 char *buf;
4685
4686 /* If name contains path separators then try it as a straight path. */
4687 if ((strchr(name, '/') || strchr(name, '\\'))
4688 && access(name, R_OK) == 0) {
73ffc805 4689 return qemu_strdup(name);
5cea8590
PB		 4690 }
4691 switch (type) {
4692 case QEMU_FILE_TYPE_BIOS:
4693 subdir = "";
4694 break;
4695 case QEMU_FILE_TYPE_KEYMAP:
4696 subdir = "keymaps/";
4697 break;
4698 default:
4699 abort();
4700 }
4701 len = strlen(data_dir) + strlen(name) + strlen(subdir) + 2;
4702 buf = qemu_mallocz(len);
3a41759d 4703 snprintf(buf, len, "%s/%s%s", data_dir, subdir, name);
5cea8590
PB		 4704 if (access(buf, R_OK)) {
4705 qemu_free(buf);
4706 return NULL;
4707 }
4708 return buf;
4709}
4710
f31d07d1
GH		 4711static int device_init_func(QemuOpts *opts, void *opaque)
4712{
4713 DeviceState *dev;
4714
4715 dev = qdev_device_add(opts);
4716 if (!dev)
4717 return -1;
4718 return 0;
4719}
4720
bd3c948d
GH		 4721struct device_config {
4722 enum {
bd3c948d
GH		 4723 DEV_USB, /* -usbdevice */
4724 DEV_BT, /* -bt */
4725 } type;
4726 const char *cmdline;
4727 TAILQ_ENTRY(device_config) next;
4728};
4729TAILQ_HEAD(, device_config) device_configs = TAILQ_HEAD_INITIALIZER(device_configs);
4730
4731static void add_device_config(int type, const char *cmdline)
4732{
4733 struct device_config *conf;
4734
4735 conf = qemu_mallocz(sizeof(*conf));
4736 conf->type = type;
4737 conf->cmdline = cmdline;
4738 TAILQ_INSERT_TAIL(&device_configs, conf, next);
4739}
4740
4741static int foreach_device_config(int type, int (*func)(const char *cmdline))
4742{
4743 struct device_config *conf;
4744 int rc;
4745
4746 TAILQ_FOREACH(conf, &device_configs, next) {
4747 if (conf->type != type)
4748 continue;
4749 rc = func(conf->cmdline);
4750 if (0 != rc)
4751 return rc;
4752 }
4753 return 0;
4754}
4755
902b3d5c 4756int main(int argc, char **argv, char **envp)
0824d6fc 4757{
59030a8c 4758 const char *gdbstub_dev = NULL;
28c5af54 4759 uint32_t boot_devices_bitmap = 0;
e4bcb14c 4760 int i;
28c5af54 4761 int snapshot, linux_boot, net_boot;
7f7f9873 4762 const char *initrd_filename;
a20dd508 4763 const char *kernel_filename, *kernel_cmdline;
ef3adf68 4764 char boot_devices[33] = "cad"; /* default to HD->floppy->CD-ROM */
3023f332 4765 DisplayState *ds;
7d957bd8 4766 DisplayChangeListener *dcl;
46d4767d 4767 int cyls, heads, secs, translation;
fd5f393a 4768 const char *net_clients[MAX_NET_CLIENTS];
7c9d8e07 4769 int nb_net_clients;
f31d07d1 4770 QemuOpts *hda_opts = NULL, *opts;
cd6f1169
FB		 4771 int optind;
4772 const char *r, *optarg;
ddd9bbd9
JK		 4773 CharDriverState *monitor_hds[MAX_MONITOR_DEVICES];
4774 const char *monitor_devices[MAX_MONITOR_DEVICES];
4775 int monitor_device_index;
fd5f393a 4776 const char *serial_devices[MAX_SERIAL_PORTS];
8d11df9e 4777 int serial_device_index;
fd5f393a 4778 const char *parallel_devices[MAX_PARALLEL_PORTS];
6508fe59 4779 int parallel_device_index;
9ede2fde
AL		 4780 const char *virtio_consoles[MAX_VIRTIO_CONSOLES];
4781 int virtio_console_index;
d63d307f 4782 const char *loadvm = NULL;
cc1daa40 4783 QEMUMachine *machine;
94fc95cd 4784 const char *cpu_model;
b9e82a59 4785#ifndef _WIN32
71e3ceb8 4786 int fds[2];
b9e82a59 4787#endif
26a5f13b 4788 int tb_size;
93815bc2 4789 const char *pid_file = NULL;
5bb7910a 4790 const char *incoming = NULL;
b9e82a59 4791#ifndef _WIN32
54042bcf
AL		 4792 int fd = 0;
4793 struct passwd *pwd = NULL;
0858532e
AL		 4794 const char *chroot_dir = NULL;
4795 const char *run_as = NULL;
b9e82a59 4796#endif
268a362c 4797 CPUState *env;
993fbfdb 4798 int show_vnc_port = 0;
0bd48850 4799
ac7531ec 4800 qemu_errors_to_file(stderr);
902b3d5c 4801 qemu_cache_utils_init(envp);
4802
0bd48850 4803 LIST_INIT (&vm_change_state_head);
be995c27
FB		 4804#ifndef _WIN32
4805 {
4806 struct sigaction act;
4807 sigfillset(&act.sa_mask);
4808 act.sa_flags = 0;
4809 act.sa_handler = SIG_IGN;
4810 sigaction(SIGPIPE, &act, NULL);
4811 }
3587d7e6
FB		 4812#else
4813 SetConsoleCtrlHandler(qemu_ctrl_handler, TRUE);
a8e5ac33
FB		 4814 /* Note: cpu_interrupt() is currently not SMP safe, so we force
4815 QEMU to run on a single CPU */
4816 {
4817 HANDLE h;
4818 DWORD mask, smask;
4819 int i;
4820 h = GetCurrentProcess();
4821 if (GetProcessAffinityMask(h, &mask, &smask)) {
4822 for(i = 0; i < 32; i++) {
4823 if (mask & (1 << i))
4824 break;
4825 }
4826 if (i != 32) {
4827 mask = 1 << i;
4828 SetProcessAffinityMask(h, mask);
4829 }
4830 }
4831 }
67b915a5 4832#endif
be995c27 4833
f80f9ec9 4834 module_call_init(MODULE_INIT_MACHINE);
0c257437 4835 machine = find_default_machine();
94fc95cd 4836 cpu_model = NULL;
fc01f7e7 4837 initrd_filename = NULL;
4fc5d071 4838 ram_size = 0;
33e3963e 4839 snapshot = 0;
a20dd508
FB		 4840 kernel_filename = NULL;
4841 kernel_cmdline = "";
c4b1fcc0 4842 cyls = heads = secs = 0;
46d4767d 4843 translation = BIOS_ATA_TRANSLATION_AUTO;
c4b1fcc0 4844
c75a823c 4845 serial_devices[0] = "vc:80Cx24C";
8d11df9e 4846 for(i = 1; i < MAX_SERIAL_PORTS; i++)
fd5f393a 4847 serial_devices[i] = NULL;
8d11df9e 4848 serial_device_index = 0;
3b46e624 4849
8290edda 4850 parallel_devices[0] = "vc:80Cx24C";
6508fe59 4851 for(i = 1; i < MAX_PARALLEL_PORTS; i++)
fd5f393a 4852 parallel_devices[i] = NULL;
6508fe59 4853 parallel_device_index = 0;
3b46e624 4854
1b8fc811 4855 for(i = 0; i < MAX_VIRTIO_CONSOLES; i++)
9ede2fde
AL		 4856 virtio_consoles[i] = NULL;
4857 virtio_console_index = 0;
4858
ddd9bbd9
JK		 4859 monitor_devices[0] = "vc:80Cx24C";
4860 for (i = 1; i < MAX_MONITOR_DEVICES; i++) {
4861 monitor_devices[i] = NULL;
4862 }
4863 monitor_device_index = 0;
4864
268a362c
AL		 4865 for (i = 0; i < MAX_NODES; i++) {
4866 node_mem[i] = 0;
4867 node_cpumask[i] = 0;
4868 }
4869
7c9d8e07 4870 nb_net_clients = 0;
268a362c 4871 nb_numa_nodes = 0;
7c9d8e07 4872 nb_nics = 0;
3b46e624 4873
26a5f13b 4874 tb_size = 0;
41bd639b
BS		 4875 autostart= 1;
4876
cd6f1169 4877 optind = 1;
0824d6fc 4878 for(;;) {
cd6f1169 4879 if (optind >= argc)
0824d6fc 4880 break;
cd6f1169
FB		 4881 r = argv[optind];
4882 if (r[0] != '-') {
9dfd7c7a 4883 hda_opts = drive_add(argv[optind++], HD_ALIAS, 0);
cd6f1169
FB		 4884 } else {
4885 const QEMUOption *popt;
4886
4887 optind++;
dff5efc8
PB		 4888 /* Treat --foo the same as -foo. */
4889 if (r[1] == '-')
4890 r++;
cd6f1169
FB		 4891 popt = qemu_options;
4892 for(;;) {
4893 if (!popt->name) {
5fafdf24 4894 fprintf(stderr, "%s: invalid option -- '%s'\n",
cd6f1169
FB		 4895 argv[0], r);
4896 exit(1);
4897 }
4898 if (!strcmp(popt->name, r + 1))
4899 break;
4900 popt++;
4901 }
4902 if (popt->flags & HAS_ARG) {
4903 if (optind >= argc) {
4904 fprintf(stderr, "%s: option '%s' requires an argument\n",
4905 argv[0], r);
4906 exit(1);
4907 }
4908 optarg = argv[optind++];
4909 } else {
4910 optarg = NULL;
4911 }
4912
4913 switch(popt->index) {
cc1daa40
FB		 4914 case QEMU_OPTION_M:
4915 machine = find_machine(optarg);
4916 if (!machine) {
4917 QEMUMachine *m;
4918 printf("Supported machines are:\n");
4919 for(m = first_machine; m != NULL; m = m->next) {
3f6599e6
MM		 4920 if (m->alias)
4921 printf("%-10s %s (alias of %s)\n",
4922 m->alias, m->desc, m->name);
cc1daa40 4923 printf("%-10s %s%s\n",
5fafdf24 4924 m->name, m->desc,
0c257437 4925 m->is_default ? " (default)" : "");
cc1daa40 4926 }
15f82208 4927 exit(*optarg != '?');
cc1daa40
FB		 4928 }
4929 break;
94fc95cd
JM		 4930 case QEMU_OPTION_cpu:
4931 /* hw initialization will check this */
15f82208 4932 if (*optarg == '?') {
c732abe2
JM		 4933/* XXX: implement xxx_cpu_list for targets that still miss it */
4934#if defined(cpu_list)
4935 cpu_list(stdout, &fprintf);
94fc95cd 4936#endif
15f82208 4937 exit(0);
94fc95cd
JM		 4938 } else {
4939 cpu_model = optarg;
4940 }
4941 break;
cd6f1169 4942 case QEMU_OPTION_initrd:
fc01f7e7
FB		 4943 initrd_filename = optarg;
4944 break;
cd6f1169 4945 case QEMU_OPTION_hda:
e4bcb14c 4946 if (cyls == 0)
9dfd7c7a 4947 hda_opts = drive_add(optarg, HD_ALIAS, 0);
e4bcb14c 4948 else
9dfd7c7a 4949 hda_opts = drive_add(optarg, HD_ALIAS
e4bcb14c 4950 ",cyls=%d,heads=%d,secs=%d%s",
609497ab 4951 0, cyls, heads, secs,
e4bcb14c
TS		 4952 translation == BIOS_ATA_TRANSLATION_LBA ?
4953 ",trans=lba" :
4954 translation == BIOS_ATA_TRANSLATION_NONE ?
4955 ",trans=none" : "");
4956 break;
cd6f1169 4957 case QEMU_OPTION_hdb:
cc1daa40
FB		 4958 case QEMU_OPTION_hdc:
4959 case QEMU_OPTION_hdd:
609497ab 4960 drive_add(optarg, HD_ALIAS, popt->index - QEMU_OPTION_hda);
fc01f7e7 4961 break;
e4bcb14c 4962 case QEMU_OPTION_drive:
609497ab 4963 drive_add(NULL, "%s", optarg);
e4bcb14c 4964 break;
d058fe03
GH		 4965 case QEMU_OPTION_set:
4966 if (qemu_set_option(optarg) != 0)
4967 exit(1);
4968 break;
3e3d5815 4969 case QEMU_OPTION_mtdblock:
609497ab 4970 drive_add(optarg, MTD_ALIAS);
3e3d5815 4971 break;
a1bb27b1 4972 case QEMU_OPTION_sd:
609497ab 4973 drive_add(optarg, SD_ALIAS);
a1bb27b1 4974 break;
86f55663 4975 case QEMU_OPTION_pflash:
609497ab 4976 drive_add(optarg, PFLASH_ALIAS);
86f55663 4977 break;
cd6f1169 4978 case QEMU_OPTION_snapshot:
33e3963e
FB		 4979 snapshot = 1;
4980 break;
cd6f1169 4981 case QEMU_OPTION_hdachs:
330d0414 4982 {
330d0414
FB		 4983 const char *p;
4984 p = optarg;
4985 cyls = strtol(p, (char **)&p, 0);
46d4767d
FB		 4986 if (cyls < 1 || cyls > 16383)
4987 goto chs_fail;
330d0414
FB		 4988 if (*p != ',')
4989 goto chs_fail;
4990 p++;
4991 heads = strtol(p, (char **)&p, 0);
46d4767d
FB		 4992 if (heads < 1 || heads > 16)
4993 goto chs_fail;
330d0414
FB		 4994 if (*p != ',')
4995 goto chs_fail;
4996 p++;
4997 secs = strtol(p, (char **)&p, 0);
46d4767d
FB		 4998 if (secs < 1 || secs > 63)
4999 goto chs_fail;
5000 if (*p == ',') {
5001 p++;
5002 if (!strcmp(p, "none"))
5003 translation = BIOS_ATA_TRANSLATION_NONE;
5004 else if (!strcmp(p, "lba"))
5005 translation = BIOS_ATA_TRANSLATION_LBA;
5006 else if (!strcmp(p, "auto"))
5007 translation = BIOS_ATA_TRANSLATION_AUTO;
5008 else
5009 goto chs_fail;
5010 } else if (*p != '\0') {
c4b1fcc0 5011 chs_fail:
46d4767d
FB		 5012 fprintf(stderr, "qemu: invalid physical CHS format\n");
5013 exit(1);
c4b1fcc0 5014 }
9dfd7c7a
GH		 5015 if (hda_opts != NULL) {
5016 char num[16];
5017 snprintf(num, sizeof(num), "%d", cyls);
5018 qemu_opt_set(hda_opts, "cyls", num);
5019 snprintf(num, sizeof(num), "%d", heads);
5020 qemu_opt_set(hda_opts, "heads", num);
5021 snprintf(num, sizeof(num), "%d", secs);
5022 qemu_opt_set(hda_opts, "secs", num);
5023 if (translation == BIOS_ATA_TRANSLATION_LBA)
5024 qemu_opt_set(hda_opts, "trans", "lba");
5025 if (translation == BIOS_ATA_TRANSLATION_NONE)
5026 qemu_opt_set(hda_opts, "trans", "none");
5027 }
330d0414
FB		 5028 }
5029 break;
268a362c
AL		 5030 case QEMU_OPTION_numa:
5031 if (nb_numa_nodes >= MAX_NODES) {
5032 fprintf(stderr, "qemu: too many NUMA nodes\n");
5033 exit(1);
5034 }
5035 numa_add(optarg);
5036 break;
cd6f1169 5037 case QEMU_OPTION_nographic:
993fbfdb 5038 display_type = DT_NOGRAPHIC;
a20dd508 5039 break;
4d3b6f6e
AZ		 5040#ifdef CONFIG_CURSES
5041 case QEMU_OPTION_curses:
993fbfdb 5042 display_type = DT_CURSES;
4d3b6f6e
AZ		 5043 break;
5044#endif
a171fe39
AZ		 5045 case QEMU_OPTION_portrait:
5046 graphic_rotate = 1;
5047 break;
cd6f1169 5048 case QEMU_OPTION_kernel:
a20dd508
FB		 5049 kernel_filename = optarg;
5050 break;
cd6f1169 5051 case QEMU_OPTION_append:
a20dd508 5052 kernel_cmdline = optarg;
313aa567 5053 break;
cd6f1169 5054 case QEMU_OPTION_cdrom:
609497ab 5055 drive_add(optarg, CDROM_ALIAS);
36b486bb 5056 break;
cd6f1169 5057 case QEMU_OPTION_boot:
28c5af54 5058 {
ef3adf68 5059 static const char * const params[] = {
95387491 5060 "order", "once", "menu", NULL
ef3adf68
JK		 5061 };
5062 char buf[sizeof(boot_devices)];
e0f084bf 5063 char *standard_boot_devices;
ef3adf68
JK		 5064 int legacy = 0;
5065
5066 if (!strchr(optarg, '=')) {
5067 legacy = 1;
5068 pstrcpy(buf, sizeof(buf), optarg);
5069 } else if (check_params(buf, sizeof(buf), params, optarg) < 0) {
5070 fprintf(stderr,
5071 "qemu: unknown boot parameter '%s' in '%s'\n",
5072 buf, optarg);
5073 exit(1);
5074 }
5075
5076 if (legacy ||
5077 get_param_value(buf, sizeof(buf), "order", optarg)) {
5078 boot_devices_bitmap = parse_bootdevices(buf);
5079 pstrcpy(boot_devices, sizeof(boot_devices), buf);
28c5af54 5080 }
e0f084bf
JK		 5081 if (!legacy) {
5082 if (get_param_value(buf, sizeof(buf),
5083 "once", optarg)) {
5084 boot_devices_bitmap |= parse_bootdevices(buf);
5085 standard_boot_devices = qemu_strdup(boot_devices);
5086 pstrcpy(boot_devices, sizeof(boot_devices), buf);
5087 qemu_register_reset(restore_boot_devices,
5088 standard_boot_devices);
5089 }
95387491
JK		 5090 if (get_param_value(buf, sizeof(buf),
5091 "menu", optarg)) {
5092 if (!strcmp(buf, "on")) {
5093 boot_menu = 1;
5094 } else if (!strcmp(buf, "off")) {
5095 boot_menu = 0;
5096 } else {
5097 fprintf(stderr,
5098 "qemu: invalid option value '%s'\n",
5099 buf);
5100 exit(1);
5101 }
5102 }
e0f084bf 5103 }
36b486bb
FB		 5104 }
5105 break;
cd6f1169 5106 case QEMU_OPTION_fda:
cd6f1169 5107 case QEMU_OPTION_fdb:
609497ab 5108 drive_add(optarg, FD_ALIAS, popt->index - QEMU_OPTION_fda);
c45886db 5109 break;
52ca8d6a
FB		 5110#ifdef TARGET_I386
5111 case QEMU_OPTION_no_fd_bootchk:
5112 fd_bootchk = 0;
5113 break;
5114#endif
7c9d8e07
FB		 5115 case QEMU_OPTION_net:
5116 if (nb_net_clients >= MAX_NET_CLIENTS) {
5117 fprintf(stderr, "qemu: too many network clients\n");
c4b1fcc0
FB		 5118 exit(1);
5119 }
fd5f393a 5120 net_clients[nb_net_clients] = optarg;
7c9d8e07 5121 nb_net_clients++;
702c651c 5122 break;
c7f74643
FB		 5123#ifdef CONFIG_SLIRP
5124 case QEMU_OPTION_tftp:
ad196a9d 5125 legacy_tftp_prefix = optarg;
9bf05444 5126 break;
47d5d01a 5127 case QEMU_OPTION_bootp:
ad196a9d 5128 legacy_bootp_filename = optarg;
47d5d01a 5129 break;
c94c8d64 5130#ifndef _WIN32
9d728e8c 5131 case QEMU_OPTION_smb:
ad196a9d 5132 net_slirp_smb(optarg);
9d728e8c 5133 break;
c94c8d64 5134#endif
9bf05444 5135 case QEMU_OPTION_redir:
f3546deb 5136 net_slirp_redir(optarg);
9bf05444 5137 break;
c7f74643 5138#endif
dc72ac14 5139 case QEMU_OPTION_bt:
bd3c948d 5140 add_device_config(DEV_BT, optarg);
dc72ac14 5141 break;
1d14ffa9 5142#ifdef HAS_AUDIO
1d14ffa9
FB		 5143 case QEMU_OPTION_audio_help:
5144 AUD_help ();
5145 exit (0);
5146 break;
5147 case QEMU_OPTION_soundhw:
5148 select_soundhw (optarg);
5149 break;
5150#endif
cd6f1169 5151 case QEMU_OPTION_h:
15f82208 5152 help(0);
cd6f1169 5153 break;
9bd7e6d9
PB		 5154 case QEMU_OPTION_version:
5155 version();
5156 exit(0);
5157 break;
00f82b8a
AJ		 5158 case QEMU_OPTION_m: {
5159 uint64_t value;
5160 char *ptr;
5161
5162 value = strtoul(optarg, &ptr, 10);
5163 switch (*ptr) {
5164 case 0: case 'M': case 'm':
5165 value <<= 20;
5166 break;
5167 case 'G': case 'g':
5168 value <<= 30;
5169 break;
5170 default:
5171 fprintf(stderr, "qemu: invalid ram size: %s\n", optarg);
cd6f1169
FB		 5172 exit(1);
5173 }
00f82b8a
AJ		 5174
5175 /* On 32-bit hosts, QEMU is limited by virtual address space */
4a1418e0 5176 if (value > (2047 << 20) && HOST_LONG_BITS == 32) {
00f82b8a
AJ		 5177 fprintf(stderr, "qemu: at most 2047 MB RAM can be simulated\n");
5178 exit(1);
5179 }
5180 if (value != (uint64_t)(ram_addr_t)value) {
5181 fprintf(stderr, "qemu: ram size too large\n");
5182 exit(1);
5183 }
5184 ram_size = value;
cd6f1169 5185 break;
00f82b8a 5186 }
cd6f1169
FB		 5187 case QEMU_OPTION_d:
5188 {
5189 int mask;
c7cd6a37 5190 const CPULogItem *item;
3b46e624 5191
cd6f1169
FB		 5192 mask = cpu_str_to_log_mask(optarg);
5193 if (!mask) {
5194 printf("Log items (comma separated):\n");
f193c797
FB		 5195 for(item = cpu_log_items; item->mask != 0; item++) {
5196 printf("%-10s %s\n", item->name, item->help);
5197 }
5198 exit(1);
cd6f1169
FB		 5199 }
5200 cpu_set_log(mask);
f193c797 5201 }
cd6f1169 5202 break;
cd6f1169 5203 case QEMU_OPTION_s:
59030a8c 5204 gdbstub_dev = "tcp::" DEFAULT_GDBSTUB_PORT;
cd6f1169 5205 break;
59030a8c
AL		 5206 case QEMU_OPTION_gdb:
5207 gdbstub_dev = optarg;
cd6f1169 5208 break;
cd6f1169 5209 case QEMU_OPTION_L:
5cea8590 5210 data_dir = optarg;
cd6f1169 5211 break;
1192dad8
JM		 5212 case QEMU_OPTION_bios:
5213 bios_name = optarg;
5214 break;
1b530a6d
AJ		 5215 case QEMU_OPTION_singlestep:
5216 singlestep = 1;
5217 break;
cd6f1169 5218 case QEMU_OPTION_S:
3c07f8e8 5219 autostart = 0;
cd6f1169 5220 break;
5824d651 5221#ifndef _WIN32
3d11d0eb
FB		 5222 case QEMU_OPTION_k:
5223 keyboard_layout = optarg;
5224 break;
5824d651 5225#endif
ee22c2f7
FB		 5226 case QEMU_OPTION_localtime:
5227 rtc_utc = 0;
5228 break;
3893c124 5229 case QEMU_OPTION_vga:
5230 select_vgahw (optarg);
1bfe856e 5231 break;
5824d651 5232#if defined(TARGET_PPC) || defined(TARGET_SPARC)
e9b137c2
FB		 5233 case QEMU_OPTION_g:
5234 {
5235 const char *p;
5236 int w, h, depth;
5237 p = optarg;
5238 w = strtol(p, (char **)&p, 10);
5239 if (w <= 0) {
5240 graphic_error:
5241 fprintf(stderr, "qemu: invalid resolution or depth\n");
5242 exit(1);
5243 }
5244 if (*p != 'x')
5245 goto graphic_error;
5246 p++;
5247 h = strtol(p, (char **)&p, 10);
5248 if (h <= 0)
5249 goto graphic_error;
5250 if (*p == 'x') {
5251 p++;
5252 depth = strtol(p, (char **)&p, 10);
5fafdf24 5253 if (depth != 8 && depth != 15 && depth != 16 &&
e9b137c2
FB		 5254 depth != 24 && depth != 32)
5255 goto graphic_error;
5256 } else if (*p == '\0') {
5257 depth = graphic_depth;
5258 } else {
5259 goto graphic_error;
5260 }
3b46e624 5261
e9b137c2
FB		 5262 graphic_width = w;
5263 graphic_height = h;
5264 graphic_depth = depth;
5265 }
5266 break;
5824d651 5267#endif
20d8a3ed
TS		 5268 case QEMU_OPTION_echr:
5269 {
5270 char *r;
5271 term_escape_char = strtol(optarg, &r, 0);
5272 if (r == optarg)
5273 printf("Bad argument to echr\n");
5274 break;
5275 }
82c643ff 5276 case QEMU_OPTION_monitor:
ddd9bbd9
JK		 5277 if (monitor_device_index >= MAX_MONITOR_DEVICES) {
5278 fprintf(stderr, "qemu: too many monitor devices\n");
5279 exit(1);
5280 }
5281 monitor_devices[monitor_device_index] = optarg;
5282 monitor_device_index++;
82c643ff
FB		 5283 break;
5284 case QEMU_OPTION_serial:
8d11df9e
FB		 5285 if (serial_device_index >= MAX_SERIAL_PORTS) {
5286 fprintf(stderr, "qemu: too many serial ports\n");
5287 exit(1);
5288 }
fd5f393a 5289 serial_devices[serial_device_index] = optarg;
8d11df9e 5290 serial_device_index++;
82c643ff 5291 break;
9dd986cc 5292 case QEMU_OPTION_watchdog:
09aaa160
MA		 5293 if (watchdog) {
5294 fprintf(stderr,
5295 "qemu: only one watchdog option may be given\n");
5296 return 1;
5297 }
5298 watchdog = optarg;
9dd986cc
RJ		 5299 break;
5300 case QEMU_OPTION_watchdog_action:
5301 if (select_watchdog_action(optarg) == -1) {
5302 fprintf(stderr, "Unknown -watchdog-action parameter\n");
5303 exit(1);
5304 }
5305 break;
51ecf136
AL		 5306 case QEMU_OPTION_virtiocon:
5307 if (virtio_console_index >= MAX_VIRTIO_CONSOLES) {
5308 fprintf(stderr, "qemu: too many virtio consoles\n");
5309 exit(1);
5310 }
5311 virtio_consoles[virtio_console_index] = optarg;
5312 virtio_console_index++;
5313 break;
6508fe59
FB		 5314 case QEMU_OPTION_parallel:
5315 if (parallel_device_index >= MAX_PARALLEL_PORTS) {
5316 fprintf(stderr, "qemu: too many parallel ports\n");
5317 exit(1);
5318 }
fd5f393a 5319 parallel_devices[parallel_device_index] = optarg;
6508fe59
FB		 5320 parallel_device_index++;
5321 break;
d63d307f
FB		 5322 case QEMU_OPTION_loadvm:
5323 loadvm = optarg;
5324 break;
5325 case QEMU_OPTION_full_screen:
5326 full_screen = 1;
5327 break;
667accab 5328#ifdef CONFIG_SDL
43523e93
TS		 5329 case QEMU_OPTION_no_frame:
5330 no_frame = 1;
5331 break;
3780e197
TS		 5332 case QEMU_OPTION_alt_grab:
5333 alt_grab = 1;
5334 break;
667accab
TS		 5335 case QEMU_OPTION_no_quit:
5336 no_quit = 1;
5337 break;
7d957bd8 5338 case QEMU_OPTION_sdl:
993fbfdb 5339 display_type = DT_SDL;
7d957bd8 5340 break;
667accab 5341#endif
f7cce898 5342 case QEMU_OPTION_pidfile:
93815bc2 5343 pid_file = optarg;
f7cce898 5344 break;
a09db21f
FB		 5345#ifdef TARGET_I386
5346 case QEMU_OPTION_win2k_hack:
5347 win2k_install_hack = 1;
5348 break;
73822ec8
AL		 5349 case QEMU_OPTION_rtc_td_hack:
5350 rtc_td_hack = 1;
5351 break;
8a92ea2f
AL		 5352 case QEMU_OPTION_acpitable:
5353 if(acpi_table_add(optarg) < 0) {
5354 fprintf(stderr, "Wrong acpi table provided\n");
5355 exit(1);
5356 }
5357 break;
b6f6e3d3
AL		 5358 case QEMU_OPTION_smbios:
5359 if(smbios_entry_add(optarg) < 0) {
5360 fprintf(stderr, "Wrong smbios provided\n");
5361 exit(1);
5362 }
5363 break;
a09db21f 5364#endif
7ba1e619
AL		 5365#ifdef CONFIG_KVM
5366 case QEMU_OPTION_enable_kvm:
5367 kvm_allowed = 1;
7ba1e619 5368 break;
d993e026 5369#endif
bb36d470
FB		 5370 case QEMU_OPTION_usb:
5371 usb_enabled = 1;
5372 break;
a594cfbf
FB		 5373 case QEMU_OPTION_usbdevice:
5374 usb_enabled = 1;
bd3c948d
GH		 5375 add_device_config(DEV_USB, optarg);
5376 break;
5377 case QEMU_OPTION_device:
f31d07d1
GH		 5378 opts = qemu_opts_parse(&qemu_device_opts, optarg, "driver");
5379 if (!opts) {
5380 fprintf(stderr, "parse error: %s\n", optarg);
5381 exit(1);
5382 }
a594cfbf 5383 break;
6a00d601 5384 case QEMU_OPTION_smp:
dc6b1c09 5385 smp_parse(optarg);
b2097003 5386 if (smp_cpus < 1) {
6a00d601
FB		 5387 fprintf(stderr, "Invalid number of CPUs\n");
5388 exit(1);
5389 }
6be68d7e
JS		 5390 if (max_cpus < smp_cpus) {
5391 fprintf(stderr, "maxcpus must be equal to or greater than "
5392 "smp\n");
5393 exit(1);
5394 }
5395 if (max_cpus > 255) {
5396 fprintf(stderr, "Unsupported number of maxcpus\n");
5397 exit(1);
5398 }
6a00d601 5399 break;
24236869 5400 case QEMU_OPTION_vnc:
993fbfdb 5401 display_type = DT_VNC;
73fc9742 5402 vnc_display = optarg;
24236869 5403 break;
5824d651 5404#ifdef TARGET_I386
6515b203
FB		 5405 case QEMU_OPTION_no_acpi:
5406 acpi_enabled = 0;
5407 break;
16b29ae1
AL		 5408 case QEMU_OPTION_no_hpet:
5409 no_hpet = 1;
5410 break;
7d4c3d53
MA		 5411 case QEMU_OPTION_balloon:
5412 if (balloon_parse(optarg) < 0) {
5413 fprintf(stderr, "Unknown -balloon argument %s\n", optarg);
5414 exit(1);
5415 }
df97b920 5416 break;
5824d651 5417#endif
d1beab82
FB		 5418 case QEMU_OPTION_no_reboot:
5419 no_reboot = 1;
5420 break;
b2f76161
AJ		 5421 case QEMU_OPTION_no_shutdown:
5422 no_shutdown = 1;
5423 break;
9467cd46
AZ		 5424 case QEMU_OPTION_show_cursor:
5425 cursor_hide = 0;
5426 break;
8fcb1b90
BS		 5427 case QEMU_OPTION_uuid:
5428 if(qemu_uuid_parse(optarg, qemu_uuid) < 0) {
5429 fprintf(stderr, "Fail to parse UUID string."
5430 " Wrong format.\n");
5431 exit(1);
5432 }
5433 break;
5824d651 5434#ifndef _WIN32
71e3ceb8
TS		 5435 case QEMU_OPTION_daemonize:
5436 daemonize = 1;
5437 break;
5824d651 5438#endif
9ae02555
TS		 5439 case QEMU_OPTION_option_rom:
5440 if (nb_option_roms >= MAX_OPTION_ROMS) {
5441 fprintf(stderr, "Too many option ROMs\n");
5442 exit(1);
5443 }
5444 option_rom[nb_option_roms] = optarg;
5445 nb_option_roms++;
5446 break;
5824d651 5447#if defined(TARGET_ARM) || defined(TARGET_M68K)
8e71621f
PB		 5448 case QEMU_OPTION_semihosting:
5449 semihosting_enabled = 1;
5450 break;
5824d651 5451#endif
c35734b2 5452 case QEMU_OPTION_name:
1889465a
AK		 5453 qemu_name = qemu_strdup(optarg);
5454 {
5455 char *p = strchr(qemu_name, ',');
5456 if (p != NULL) {
5457 *p++ = 0;
5458 if (strncmp(p, "process=", 8)) {
5459 fprintf(stderr, "Unknown subargument %s to -name", p);
5460 exit(1);
5461 }
5462 p += 8;
5463 set_proc_name(p);
5464 }
5465 }
c35734b2 5466 break;
95efd11c 5467#if defined(TARGET_SPARC) || defined(TARGET_PPC)
66508601
BS		 5468 case QEMU_OPTION_prom_env:
5469 if (nb_prom_envs >= MAX_PROM_ENVS) {
5470 fprintf(stderr, "Too many prom variables\n");
5471 exit(1);
5472 }
5473 prom_envs[nb_prom_envs] = optarg;
5474 nb_prom_envs++;
5475 break;
2b8f2d41
AZ		 5476#endif
5477#ifdef TARGET_ARM
5478 case QEMU_OPTION_old_param:
5479 old_param = 1;
05ebd537 5480 break;
66508601 5481#endif
f3dcfada
TS		 5482 case QEMU_OPTION_clock:
5483 configure_alarms(optarg);
5484 break;
7e0af5d0
FB		 5485 case QEMU_OPTION_startdate:
5486 {
5487 struct tm tm;
f6503059 5488 time_t rtc_start_date;
7e0af5d0 5489 if (!strcmp(optarg, "now")) {
f6503059 5490 rtc_date_offset = -1;
7e0af5d0
FB		 5491 } else {
5492 if (sscanf(optarg, "%d-%d-%dT%d:%d:%d",
5493 &tm.tm_year,
5494 &tm.tm_mon,
5495 &tm.tm_mday,
5496 &tm.tm_hour,
5497 &tm.tm_min,
5498 &tm.tm_sec) == 6) {
5499 /* OK */
5500 } else if (sscanf(optarg, "%d-%d-%d",
5501 &tm.tm_year,
5502 &tm.tm_mon,
5503 &tm.tm_mday) == 3) {
5504 tm.tm_hour = 0;
5505 tm.tm_min = 0;
5506 tm.tm_sec = 0;
5507 } else {
5508 goto date_fail;
5509 }
5510 tm.tm_year -= 1900;
5511 tm.tm_mon--;
3c6b2088 5512 rtc_start_date = mktimegm(&tm);
7e0af5d0
FB		 5513 if (rtc_start_date == -1) {
5514 date_fail:
5515 fprintf(stderr, "Invalid date format. Valid format are:\n"
5516 "'now' or '2006-06-17T16:01:21' or '2006-06-17'\n");
5517 exit(1);
5518 }
f6503059 5519 rtc_date_offset = time(NULL) - rtc_start_date;
7e0af5d0
FB		 5520 }
5521 }
5522 break;
26a5f13b
FB		 5523 case QEMU_OPTION_tb_size:
5524 tb_size = strtol(optarg, NULL, 0);
5525 if (tb_size < 0)
5526 tb_size = 0;
5527 break;
2e70f6ef
PB		 5528 case QEMU_OPTION_icount:
5529 use_icount = 1;
5530 if (strcmp(optarg, "auto") == 0) {
5531 icount_time_shift = -1;
5532 } else {
5533 icount_time_shift = strtol(optarg, NULL, 0);
5534 }
5535 break;
5bb7910a
AL		 5536 case QEMU_OPTION_incoming:
5537 incoming = optarg;
5538 break;
5824d651 5539#ifndef _WIN32
0858532e
AL		 5540 case QEMU_OPTION_chroot:
5541 chroot_dir = optarg;
5542 break;
5543 case QEMU_OPTION_runas:
5544 run_as = optarg;
5545 break;
e37630ca
AL		 5546#endif
5547#ifdef CONFIG_XEN
5548 case QEMU_OPTION_xen_domid:
5549 xen_domid = atoi(optarg);
5550 break;
5551 case QEMU_OPTION_xen_create:
5552 xen_mode = XEN_CREATE;
5553 break;
5554 case QEMU_OPTION_xen_attach:
5555 xen_mode = XEN_ATTACH;
5556 break;
5824d651 5557#endif
cd6f1169 5558 }
0824d6fc
FB		 5559 }
5560 }
330d0414 5561
e09a5267
DK		 5562 if (kvm_enabled()) {
5563 int ret;
5564
5565 ret = kvm_init(smp_cpus);
5566 if (ret < 0) {
5567 fprintf(stderr, "failed to initialize KVM\n");
5568 exit(1);
5569 }
5570 }
5571
5cea8590
PB		 5572 /* If no data_dir is specified then try to find it relative to the
5573 executable path. */
5574 if (!data_dir) {
5575 data_dir = find_datadir(argv[0]);
5576 }
5577 /* If all else fails use the install patch specified when building. */
5578 if (!data_dir) {
5579 data_dir = CONFIG_QEMU_SHAREDIR;
5580 }
5581
6be68d7e
JS		 5582 /*
5583 * Default to max_cpus = smp_cpus, in case the user doesn't
5584 * specify a max_cpus value.
5585 */
5586 if (!max_cpus)
5587 max_cpus = smp_cpus;
5588
3d878caa 5589 machine->max_cpus = machine->max_cpus ?: 1; /* Default to UP */
b2097003
AL		 5590 if (smp_cpus > machine->max_cpus) {
5591 fprintf(stderr, "Number of SMP cpus requested (%d), exceeds max cpus "
5592 "supported by machine `%s' (%d)\n", smp_cpus, machine->name,
5593 machine->max_cpus);
5594 exit(1);
5595 }
5596
993fbfdb 5597 if (display_type == DT_NOGRAPHIC) {
bc0129d9
AL		 5598 if (serial_device_index == 0)
5599 serial_devices[0] = "stdio";
5600 if (parallel_device_index == 0)
5601 parallel_devices[0] = "null";
ddd9bbd9
JK		 5602 if (strncmp(monitor_devices[0], "vc", 2) == 0) {
5603 monitor_devices[0] = "stdio";
5604 }
bc0129d9
AL		 5605 }
5606
71e3ceb8 5607#ifndef _WIN32
71e3ceb8
TS		 5608 if (daemonize) {
5609 pid_t pid;
5610
5611 if (pipe(fds) == -1)
5612 exit(1);
5613
5614 pid = fork();
5615 if (pid > 0) {
5616 uint8_t status;
5617 ssize_t len;
5618
5619 close(fds[1]);
5620
5621 again:
93815bc2
TS		 5622 len = read(fds[0], &status, 1);
5623 if (len == -1 && (errno == EINTR))
5624 goto again;
5625
5626 if (len != 1)
5627 exit(1);
5628 else if (status == 1) {
5629 fprintf(stderr, "Could not acquire pidfile\n");
5630 exit(1);
5631 } else
5632 exit(0);
71e3ceb8 5633 } else if (pid < 0)
93815bc2 5634 exit(1);
71e3ceb8
TS		 5635
5636 setsid();
5637
5638 pid = fork();
5639 if (pid > 0)
5640 exit(0);
5641 else if (pid < 0)
5642 exit(1);
5643
5644 umask(027);
71e3ceb8
TS		 5645
5646 signal(SIGTSTP, SIG_IGN);
5647 signal(SIGTTOU, SIG_IGN);
5648 signal(SIGTTIN, SIG_IGN);
5649 }
71e3ceb8 5650
aa26bb2d 5651 if (pid_file && qemu_create_pidfile(pid_file) != 0) {
93815bc2
TS		 5652 if (daemonize) {
5653 uint8_t status = 1;
5654 write(fds[1], &status, 1);
5655 } else
5656 fprintf(stderr, "Could not acquire pid file\n");
5657 exit(1);
5658 }
b9e82a59 5659#endif
93815bc2 5660
3fcf7b6b
AL		 5661 if (qemu_init_main_loop()) {
5662 fprintf(stderr, "qemu_init_main_loop failed\n");
5663 exit(1);
5664 }
a20dd508 5665 linux_boot = (kernel_filename != NULL);
6c41b272 5666
f8d39c01
TS		 5667 if (!linux_boot && *kernel_cmdline != '\0') {
5668 fprintf(stderr, "-append only allowed with -kernel option\n");
5669 exit(1);
5670 }
5671
5672 if (!linux_boot && initrd_filename != NULL) {
5673 fprintf(stderr, "-initrd only allowed with -kernel option\n");
5674 exit(1);
5675 }
5676
bf65f53f
FN		 5677#ifndef _WIN32
5678 /* Win32 doesn't support line-buffering and requires size >= 2 */
b118d61e 5679 setvbuf(stdout, NULL, _IOLBF, 0);
bf65f53f 5680#endif
3b46e624 5681
634fce96 5682 init_timers();
7183b4b4
AL		 5683 if (init_timer_alarm() < 0) {
5684 fprintf(stderr, "could not initialize alarm timer\n");
5685 exit(1);
5686 }
2e70f6ef
PB		 5687 if (use_icount && icount_time_shift < 0) {
5688 use_icount = 2;
5689 /* 125MIPS seems a reasonable initial guess at the guest speed.
5690 It will be corrected fairly quickly anyway. */
5691 icount_time_shift = 3;
5692 init_icount_adjust();
5693 }
634fce96 5694
fd1dff4b
FB		 5695#ifdef _WIN32
5696 socket_init();
5697#endif
5698
7c9d8e07
FB		 5699 /* init network clients */
5700 if (nb_net_clients == 0) {
5701 /* if no clients, we use a default config */
f441b28b
AL		 5702 net_clients[nb_net_clients++] = "nic";
5703#ifdef CONFIG_SLIRP
5704 net_clients[nb_net_clients++] = "user";
5705#endif
c20709aa
FB		 5706 }
5707
7c9d8e07 5708 for(i = 0;i < nb_net_clients; i++) {
9ad97e65 5709 if (net_client_parse(net_clients[i]) < 0)
7c9d8e07 5710 exit(1);
702c651c 5711 }
f1510b2c 5712
406c8df3
GC		 5713 net_boot = (boot_devices_bitmap >> ('n' - 'a')) & 0xF;
5714 net_set_boot_mask(net_boot);
5715
5716 net_client_check();
eec85c2a 5717
dc72ac14 5718 /* init the bluetooth world */
bd3c948d
GH		 5719 if (foreach_device_config(DEV_BT, bt_parse))
5720 exit(1);
dc72ac14 5721
0824d6fc 5722 /* init the memory */
94a6b54f
PB		 5723 if (ram_size == 0)
5724 ram_size = DEFAULT_RAM_SIZE * 1024 * 1024;
9ae02555 5725
26a5f13b
FB		 5726 /* init the dynamic translator */
5727 cpu_exec_init_all(tb_size * 1024 * 1024);
5728
5905b2e5 5729 bdrv_init();
c4b1fcc0 5730
e4bcb14c 5731 /* we always create the cdrom drive, even if no disk is there */
3b0ba927 5732 drive_add(NULL, CDROM_ALIAS);
c4b1fcc0 5733
9d413d1d 5734 /* we always create at least one floppy */
3b0ba927 5735 drive_add(NULL, FD_ALIAS, 0);
86f55663 5736
9d413d1d 5737 /* we always create one sd slot, even if no card is in it */
3b0ba927 5738 drive_add(NULL, SD_ALIAS);
9d413d1d 5739
e4bcb14c 5740 /* open the virtual block devices */
9dfd7c7a 5741 if (snapshot)
7282a033
GH		 5742 qemu_opts_foreach(&qemu_drive_opts, drive_enable_snapshot, NULL, 0);
5743 if (qemu_opts_foreach(&qemu_drive_opts, drive_init_func, machine, 1) != 0)
9dfd7c7a 5744 exit(1);
3e3d5815 5745
c88676f8 5746 register_savevm("timer", 0, 2, timer_save, timer_load, NULL);
475e4277 5747 register_savevm_live("ram", 0, 3, ram_save_live, NULL, ram_load, NULL);
8a7ddc38 5748
3023f332 5749 /* Maintain compatibility with multiple stdio monitors */
ddd9bbd9 5750 if (!strcmp(monitor_devices[0],"stdio")) {
3023f332
AL		 5751 for (i = 0; i < MAX_SERIAL_PORTS; i++) {
5752 const char *devname = serial_devices[i];
5753 if (devname && !strcmp(devname,"mon:stdio")) {
ddd9bbd9 5754 monitor_devices[0] = NULL;
3023f332
AL		 5755 break;
5756 } else if (devname && !strcmp(devname,"stdio")) {
ddd9bbd9 5757 monitor_devices[0] = NULL;
3023f332
AL		 5758 serial_devices[i] = "mon:stdio";
5759 break;
5760 }
5761 }
5762 }
5763
268a362c
AL		 5764 if (nb_numa_nodes > 0) {
5765 int i;
5766
5767 if (nb_numa_nodes > smp_cpus) {
5768 nb_numa_nodes = smp_cpus;
5769 }
5770
5771 /* If no memory size if given for any node, assume the default case
5772 * and distribute the available memory equally across all nodes
5773 */
5774 for (i = 0; i < nb_numa_nodes; i++) {
5775 if (node_mem[i] != 0)
5776 break;
5777 }
5778 if (i == nb_numa_nodes) {
5779 uint64_t usedmem = 0;
5780
5781 /* On Linux, the each node's border has to be 8MB aligned,
5782 * the final node gets the rest.
5783 */
5784 for (i = 0; i < nb_numa_nodes - 1; i++) {
5785 node_mem[i] = (ram_size / nb_numa_nodes) & ~((1 << 23UL) - 1);
5786 usedmem += node_mem[i];
5787 }
5788 node_mem[i] = ram_size - usedmem;
5789 }
5790
5791 for (i = 0; i < nb_numa_nodes; i++) {
5792 if (node_cpumask[i] != 0)
5793 break;
5794 }
5795 /* assigning the VCPUs round-robin is easier to implement, guest OSes
5796 * must cope with this anyway, because there are BIOSes out there in
5797 * real machines which also use this scheme.
5798 */
5799 if (i == nb_numa_nodes) {
5800 for (i = 0; i < smp_cpus; i++) {
5801 node_cpumask[i % nb_numa_nodes] |= 1 << i;
5802 }
5803 }
5804 }
5805
ddd9bbd9
JK		 5806 for (i = 0; i < MAX_MONITOR_DEVICES; i++) {
5807 const char *devname = monitor_devices[i];
5808 if (devname && strcmp(devname, "none")) {
5809 char label[32];
5810 if (i == 0) {
5811 snprintf(label, sizeof(label), "monitor");
5812 } else {
5813 snprintf(label, sizeof(label), "monitor%d", i);
5814 }
5815 monitor_hds[i] = qemu_chr_open(label, devname, NULL);
5816 if (!monitor_hds[i]) {
5817 fprintf(stderr, "qemu: could not open monitor device '%s'\n",
5818 devname);
5819 exit(1);
5820 }
4c621805
AL		 5821 }
5822 }
5823
2796dae0
AL		 5824 for(i = 0; i < MAX_SERIAL_PORTS; i++) {
5825 const char *devname = serial_devices[i];
5826 if (devname && strcmp(devname, "none")) {
5827 char label[32];
5828 snprintf(label, sizeof(label), "serial%d", i);
ceecf1d1 5829 serial_hds[i] = qemu_chr_open(label, devname, NULL);
2796dae0
AL		 5830 if (!serial_hds[i]) {
5831 fprintf(stderr, "qemu: could not open serial device '%s'\n",
5832 devname);
5833 exit(1);
5834 }
5835 }
5836 }
5837
5838 for(i = 0; i < MAX_PARALLEL_PORTS; i++) {
5839 const char *devname = parallel_devices[i];
5840 if (devname && strcmp(devname, "none")) {
5841 char label[32];
5842 snprintf(label, sizeof(label), "parallel%d", i);
ceecf1d1 5843 parallel_hds[i] = qemu_chr_open(label, devname, NULL);
2796dae0
AL		 5844 if (!parallel_hds[i]) {
5845 fprintf(stderr, "qemu: could not open parallel device '%s'\n",
5846 devname);
5847 exit(1);
5848 }
5849 }
5850 }
5851
5852 for(i = 0; i < MAX_VIRTIO_CONSOLES; i++) {
5853 const char *devname = virtio_consoles[i];
5854 if (devname && strcmp(devname, "none")) {
5855 char label[32];
5856 snprintf(label, sizeof(label), "virtcon%d", i);
ceecf1d1 5857 virtcon_hds[i] = qemu_chr_open(label, devname, NULL);
2796dae0
AL		 5858 if (!virtcon_hds[i]) {
5859 fprintf(stderr, "qemu: could not open virtio console '%s'\n",
5860 devname);
5861 exit(1);
5862 }
5863 }
5864 }
5865
aae9460e
PB		 5866 module_call_init(MODULE_INIT_DEVICE);
5867
09aaa160
MA		 5868 if (watchdog) {
5869 i = select_watchdog(watchdog);
5870 if (i > 0)
5871 exit (i == 1 ? 1 : 0);
5872 }
5873
b6b61144
GH		 5874 if (machine->compat_props) {
5875 qdev_prop_register_compat(machine->compat_props);
5876 }
fbe1b595 5877 machine->init(ram_size, boot_devices,
3023f332
AL		 5878 kernel_filename, kernel_cmdline, initrd_filename, cpu_model);
5879
268a362c 5880
67b3b71d
JQ		 5881#ifndef _WIN32
5882 /* must be after terminal init, SDL library changes signal handlers */
5883 sighandler_setup();
5884#endif
5885
268a362c
AL		 5886 for (env = first_cpu; env != NULL; env = env->next_cpu) {
5887 for (i = 0; i < nb_numa_nodes; i++) {
5888 if (node_cpumask[i] & (1 << env->cpu_index)) {
5889 env->numa_node = i;
5890 }
5891 }
5892 }
5893
6f338c34
AL		 5894 current_machine = machine;
5895
3023f332
AL		 5896 /* init USB devices */
5897 if (usb_enabled) {
bd3c948d 5898 foreach_device_config(DEV_USB, usb_parse);
3023f332
AL		 5899 }
5900
bd3c948d 5901 /* init generic devices */
f31d07d1 5902 if (qemu_opts_foreach(&qemu_device_opts, device_init_func, NULL, 1) != 0)
bd3c948d
GH		 5903 exit(1);
5904
8f391ab4
AL		 5905 if (!display_state)
5906 dumb_display_init();
3023f332
AL		 5907 /* just use the first displaystate for the moment */
5908 ds = display_state;
993fbfdb
AL		 5909
5910 if (display_type == DT_DEFAULT) {
5911#if defined(CONFIG_SDL) || defined(CONFIG_COCOA)
5912 display_type = DT_SDL;
5913#else
5914 display_type = DT_VNC;
5915 vnc_display = "localhost:0,to=99";
5916 show_vnc_port = 1;
5917#endif
5918 }
5919
5920
5921 switch (display_type) {
5922 case DT_NOGRAPHIC:
5923 break;
4d3b6f6e 5924#if defined(CONFIG_CURSES)
993fbfdb
AL		 5925 case DT_CURSES:
5926 curses_display_init(ds, full_screen);
5927 break;
4d3b6f6e 5928#endif
5b0753e0 5929#if defined(CONFIG_SDL)
993fbfdb
AL		 5930 case DT_SDL:
5931 sdl_display_init(ds, full_screen, no_frame);
5932 break;
5b0753e0 5933#elif defined(CONFIG_COCOA)
993fbfdb
AL		 5934 case DT_SDL:
5935 cocoa_display_init(ds, full_screen);
5936 break;
313aa567 5937#endif
993fbfdb
AL		 5938 case DT_VNC:
5939 vnc_display_init(ds);
5940 if (vnc_display_open(ds, vnc_display) < 0)
5941 exit(1);
f92f8afe 5942
993fbfdb
AL		 5943 if (show_vnc_port) {
5944 printf("VNC server running on `%s'\n", vnc_display_local_addr(ds));
f92f8afe 5945 }
993fbfdb
AL		 5946 break;
5947 default:
5948 break;
313aa567 5949 }
7d957bd8 5950 dpy_resize(ds);
5b08fc10 5951
3023f332
AL		 5952 dcl = ds->listeners;
5953 while (dcl != NULL) {
5954 if (dcl->dpy_refresh != NULL) {
5955 ds->gui_timer = qemu_new_timer(rt_clock, gui_update, ds);
5956 qemu_mod_timer(ds->gui_timer, qemu_get_clock(rt_clock));
20d8a3ed 5957 }
3023f332 5958 dcl = dcl->next;
20d8a3ed 5959 }
3023f332 5960
993fbfdb 5961 if (display_type == DT_NOGRAPHIC || display_type == DT_VNC) {
9043b62d
BS		 5962 nographic_timer = qemu_new_timer(rt_clock, nographic_update, NULL);
5963 qemu_mod_timer(nographic_timer, qemu_get_clock(rt_clock));
5964 }
5965
2796dae0 5966 text_consoles_set_display(display_state);
2970a6c9 5967 qemu_chr_initial_reset();
2796dae0 5968
ddd9bbd9
JK		 5969 for (i = 0; i < MAX_MONITOR_DEVICES; i++) {
5970 if (monitor_devices[i] && monitor_hds[i]) {
5971 monitor_init(monitor_hds[i],
5972 MONITOR_USE_READLINE |
5973 ((i == 0) ? MONITOR_IS_DEFAULT : 0));
5974 }
5975 }
82c643ff 5976
8d11df9e 5977 for(i = 0; i < MAX_SERIAL_PORTS; i++) {
c03b0f0f 5978 const char *devname = serial_devices[i];
fd5f393a 5979 if (devname && strcmp(devname, "none")) {
af3a9031 5980 if (strstart(devname, "vc", 0))
7ba1260a 5981 qemu_chr_printf(serial_hds[i], "serial%d console\r\n", i);
8d11df9e 5982 }
82c643ff 5983 }
82c643ff 5984
6508fe59 5985 for(i = 0; i < MAX_PARALLEL_PORTS; i++) {
c03b0f0f 5986 const char *devname = parallel_devices[i];
fd5f393a 5987 if (devname && strcmp(devname, "none")) {
af3a9031 5988 if (strstart(devname, "vc", 0))
7ba1260a 5989 qemu_chr_printf(parallel_hds[i], "parallel%d console\r\n", i);
6508fe59
FB		 5990 }
5991 }
5992
9ede2fde
AL		 5993 for(i = 0; i < MAX_VIRTIO_CONSOLES; i++) {
5994 const char *devname = virtio_consoles[i];
2796dae0 5995 if (virtcon_hds[i] && devname) {
9ede2fde
AL		 5996 if (strstart(devname, "vc", 0))
5997 qemu_chr_printf(virtcon_hds[i], "virtio console%d\r\n", i);
5998 }
5999 }
6000
59030a8c
AL		 6001 if (gdbstub_dev && gdbserver_start(gdbstub_dev) < 0) {
6002 fprintf(stderr, "qemu: could not open gdbserver on device '%s'\n",
6003 gdbstub_dev);
6004 exit(1);
45669e00 6005 }
45669e00 6006
05f2401e
JQ		 6007 if (loadvm) {
6008 if (load_vmstate(cur_mon, loadvm) < 0) {
6009 autostart = 0;
6010 }
6011 }
d63d307f 6012
2bb8c10c 6013 if (incoming) {
5bb7910a 6014 qemu_start_incoming_migration(incoming);
6b99dadc 6015 } else if (autostart) {
c0f4ce77 6016 vm_start();
6b99dadc 6017 }
ffd843bc 6018
b9e82a59 6019#ifndef _WIN32
71e3ceb8
TS		 6020 if (daemonize) {
6021 uint8_t status = 0;
6022 ssize_t len;
71e3ceb8
TS		 6023
6024 again1:
6025 len = write(fds[1], &status, 1);
6026 if (len == -1 && (errno == EINTR))
6027 goto again1;
6028
6029 if (len != 1)
6030 exit(1);
6031
bd54b863 6032 chdir("/");
aeb30be6 6033 TFR(fd = open("/dev/null", O_RDWR));
71e3ceb8
TS		 6034 if (fd == -1)
6035 exit(1);
0858532e 6036 }
71e3ceb8 6037
0858532e
AL		 6038 if (run_as) {
6039 pwd = getpwnam(run_as);
6040 if (!pwd) {
6041 fprintf(stderr, "User \"%s\" doesn't exist\n", run_as);
6042 exit(1);
6043 }
6044 }
6045
6046 if (chroot_dir) {
6047 if (chroot(chroot_dir) < 0) {
6048 fprintf(stderr, "chroot failed\n");
6049 exit(1);
6050 }
6051 chdir("/");
6052 }
6053
6054 if (run_as) {
6055 if (setgid(pwd->pw_gid) < 0) {
6056 fprintf(stderr, "Failed to setgid(%d)\n", pwd->pw_gid);
6057 exit(1);
6058 }
6059 if (setuid(pwd->pw_uid) < 0) {
6060 fprintf(stderr, "Failed to setuid(%d)\n", pwd->pw_uid);
6061 exit(1);
6062 }
6063 if (setuid(0) != -1) {
6064 fprintf(stderr, "Dropping privileges failed\n");
6065 exit(1);
6066 }
6067 }
0858532e
AL		 6068
6069 if (daemonize) {
6070 dup2(fd, 0);
6071 dup2(fd, 1);
6072 dup2(fd, 2);
71e3ceb8 6073
0858532e 6074 close(fd);
71e3ceb8 6075 }
b9e82a59 6076#endif
71e3ceb8 6077
8a7ddc38 6078 main_loop();
40c3bac3 6079 quit_timers();
63a01ef8 6080 net_cleanup();
b46a8906 6081
0824d6fc
FB		 6082 return 0;
6083}
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