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[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
861 arg = strdup(opt);
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
890 free(arg);
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
c9b1ae2c 1931 if (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
0d92ed30
PB		 2437static USBPort *used_usb_ports;
2438static USBPort *free_usb_ports;
2439
2440/* ??? Maybe change this to register a hub to keep track of the topology. */
2441void qemu_register_usb_port(USBPort *port, void *opaque, int index,
2442 usb_attachfn attach)
2443{
2444 port->opaque = opaque;
2445 port->index = index;
2446 port->attach = attach;
2447 port->next = free_usb_ports;
2448 free_usb_ports = port;
2449}
2450
4b096fc9
AL		 2451int usb_device_add_dev(USBDevice *dev)
2452{
2453 USBPort *port;
2454
2455 /* Find a USB port to add the device to. */
2456 port = free_usb_ports;
2457 if (!port->next) {
2458 USBDevice *hub;
2459
2460 /* Create a new hub and chain it on. */
2461 free_usb_ports = NULL;
2462 port->next = used_usb_ports;
2463 used_usb_ports = port;
2464
2465 hub = usb_hub_init(VM_USB_HUB_SIZE);
2466 usb_attach(port, hub);
2467 port = free_usb_ports;
2468 }
2469
2470 free_usb_ports = port->next;
2471 port->next = used_usb_ports;
2472 used_usb_ports = port;
2473 usb_attach(port, dev);
2474 return 0;
2475}
2476
bb5fc20f
AL		 2477static void usb_msd_password_cb(void *opaque, int err)
2478{
2479 USBDevice *dev = opaque;
2480
2481 if (!err)
2482 usb_device_add_dev(dev);
2483 else
2484 dev->handle_destroy(dev);
2485}
2486
c0f4ce77 2487static int usb_device_add(const char *devname, int is_hotplug)
a594cfbf
FB		 2488{
2489 const char *p;
2490 USBDevice *dev;
a594cfbf 2491
0d92ed30 2492 if (!free_usb_ports)
a594cfbf
FB		 2493 return -1;
2494
2495 if (strstart(devname, "host:", &p)) {
2496 dev = usb_host_device_open(p);
a594cfbf
FB		 2497 } else if (!strcmp(devname, "mouse")) {
2498 dev = usb_mouse_init();
09b26c5e 2499 } else if (!strcmp(devname, "tablet")) {
47b2d338
AZ		 2500 dev = usb_tablet_init();
2501 } else if (!strcmp(devname, "keyboard")) {
2502 dev = usb_keyboard_init();
2e5d83bb 2503 } else if (strstart(devname, "disk:", &p)) {
c0f4ce77
AL		 2504 BlockDriverState *bs;
2505
bb5fc20f 2506 dev = usb_msd_init(p);
c0f4ce77
AL		 2507 if (!dev)
2508 return -1;
bb5fc20f 2509 bs = usb_msd_get_bdrv(dev);
c0f4ce77
AL		 2510 if (bdrv_key_required(bs)) {
2511 autostart = 0;
bb5fc20f 2512 if (is_hotplug) {
376253ec
AL		 2513 monitor_read_bdrv_key_start(cur_mon, bs, usb_msd_password_cb,
2514 dev);
bb5fc20f 2515 return 0;
c0f4ce77
AL		 2516 }
2517 }
f6d2a316
AZ		 2518 } else if (!strcmp(devname, "wacom-tablet")) {
2519 dev = usb_wacom_init();
a7954218
AZ		 2520 } else if (strstart(devname, "serial:", &p)) {
2521 dev = usb_serial_init(p);
2e4d9fb1
AJ		 2522#ifdef CONFIG_BRLAPI
2523 } else if (!strcmp(devname, "braille")) {
2524 dev = usb_baum_init();
2525#endif
6c9f886c 2526 } else if (strstart(devname, "net:", &p)) {
9ad97e65 2527 int nic = nb_nics;
6c9f886c 2528
10ae5a7a 2529 if (net_client_init(NULL, "nic", p) < 0)
6c9f886c 2530 return -1;
9ad97e65
AZ		 2531 nd_table[nic].model = "usb";
2532 dev = usb_net_init(&nd_table[nic]);
dc72ac14
AZ		 2533 } else if (!strcmp(devname, "bt") || strstart(devname, "bt:", &p)) {
2534 dev = usb_bt_init(devname[2] ? hci_init(p) :
2535 bt_new_hci(qemu_find_bt_vlan(0)));
a594cfbf
FB		 2536 } else {
2537 return -1;
2538 }
0d92ed30
PB		 2539 if (!dev)
2540 return -1;
2541
4b096fc9 2542 return usb_device_add_dev(dev);
a594cfbf
FB		 2543}
2544
1f3870ab 2545int usb_device_del_addr(int bus_num, int addr)
a594cfbf 2546{
0d92ed30
PB		 2547 USBPort *port;
2548 USBPort **lastp;
059809e4 2549 USBDevice *dev;
a594cfbf 2550
0d92ed30 2551 if (!used_usb_ports)
a594cfbf
FB		 2552 return -1;
2553
a594cfbf
FB		 2554 if (bus_num != 0)
2555 return -1;
0d92ed30
PB		 2556
2557 lastp = &used_usb_ports;
2558 port = used_usb_ports;
2559 while (port && port->dev->addr != addr) {
2560 lastp = &port->next;
2561 port = port->next;
a594cfbf 2562 }
0d92ed30
PB		 2563
2564 if (!port)
a594cfbf 2565 return -1;
0d92ed30 2566
059809e4 2567 dev = port->dev;
0d92ed30
PB		 2568 *lastp = port->next;
2569 usb_attach(port, NULL);
059809e4 2570 dev->handle_destroy(dev);
0d92ed30
PB		 2571 port->next = free_usb_ports;
2572 free_usb_ports = port;
a594cfbf
FB		 2573 return 0;
2574}
2575
1f3870ab
AL		 2576static int usb_device_del(const char *devname)
2577{
2578 int bus_num, addr;
2579 const char *p;
2580
5d0c5750
AL		 2581 if (strstart(devname, "host:", &p))
2582 return usb_host_device_close(p);
2583
1f3870ab
AL		 2584 if (!used_usb_ports)
2585 return -1;
2586
2587 p = strchr(devname, '.');
2588 if (!p)
2589 return -1;
2590 bus_num = strtoul(devname, NULL, 0);
2591 addr = strtoul(p + 1, NULL, 0);
2592
2593 return usb_device_del_addr(bus_num, addr);
2594}
2595
bd3c948d
GH		 2596static int usb_parse(const char *cmdline)
2597{
2598 return usb_device_add(cmdline, 0);
2599}
2600
d54908a5 2601void do_usb_add(Monitor *mon, const QDict *qdict)
a594cfbf 2602{
d54908a5 2603 usb_device_add(qdict_get_str(qdict, "devname"), 1);
a594cfbf
FB		 2604}
2605
d54908a5 2606void do_usb_del(Monitor *mon, const QDict *qdict)
a594cfbf 2607{
d54908a5 2608 usb_device_del(qdict_get_str(qdict, "devname"));
a594cfbf
FB		 2609}
2610
376253ec 2611void usb_info(Monitor *mon)
a594cfbf
FB		 2612{
2613 USBDevice *dev;
0d92ed30 2614 USBPort *port;
a594cfbf
FB		 2615 const char *speed_str;
2616
0d92ed30 2617 if (!usb_enabled) {
376253ec 2618 monitor_printf(mon, "USB support not enabled\n");
a594cfbf
FB		 2619 return;
2620 }
2621
0d92ed30
PB		 2622 for (port = used_usb_ports; port; port = port->next) {
2623 dev = port->dev;
2624 if (!dev)
2625 continue;
2626 switch(dev->speed) {
5fafdf24
TS		 2627 case USB_SPEED_LOW:
2628 speed_str = "1.5";
0d92ed30 2629 break;
5fafdf24
TS		 2630 case USB_SPEED_FULL:
2631 speed_str = "12";
0d92ed30 2632 break;
5fafdf24
TS		 2633 case USB_SPEED_HIGH:
2634 speed_str = "480";
0d92ed30
PB		 2635 break;
2636 default:
5fafdf24 2637 speed_str = "?";
0d92ed30 2638 break;
a594cfbf 2639 }
376253ec
AL		 2640 monitor_printf(mon, " Device %d.%d, Speed %s Mb/s, Product %s\n",
2641 0, dev->addr, speed_str, dev->devname);
a594cfbf
FB		 2642 }
2643}
2644
201a51fc
AZ		 2645/***********************************************************/
2646/* PCMCIA/Cardbus */
2647
2648static struct pcmcia_socket_entry_s {
bc24a225 2649 PCMCIASocket *socket;
201a51fc
AZ		 2650 struct pcmcia_socket_entry_s *next;
2651} *pcmcia_sockets = 0;
2652
bc24a225 2653void pcmcia_socket_register(PCMCIASocket *socket)
201a51fc
AZ		 2654{
2655 struct pcmcia_socket_entry_s *entry;
2656
2657 entry = qemu_malloc(sizeof(struct pcmcia_socket_entry_s));
2658 entry->socket = socket;
2659 entry->next = pcmcia_sockets;
2660 pcmcia_sockets = entry;
2661}
2662
bc24a225 2663void pcmcia_socket_unregister(PCMCIASocket *socket)
201a51fc
AZ		 2664{
2665 struct pcmcia_socket_entry_s *entry, **ptr;
2666
2667 ptr = &pcmcia_sockets;
2668 for (entry = *ptr; entry; ptr = &entry->next, entry = *ptr)
2669 if (entry->socket == socket) {
2670 *ptr = entry->next;
2671 qemu_free(entry);
2672 }
2673}
2674
376253ec 2675void pcmcia_info(Monitor *mon)
201a51fc
AZ		 2676{
2677 struct pcmcia_socket_entry_s *iter;
376253ec 2678
201a51fc 2679 if (!pcmcia_sockets)
376253ec 2680 monitor_printf(mon, "No PCMCIA sockets\n");
201a51fc
AZ		 2681
2682 for (iter = pcmcia_sockets; iter; iter = iter->next)
376253ec
AL		 2683 monitor_printf(mon, "%s: %s\n", iter->socket->slot_string,
2684 iter->socket->attached ? iter->socket->card_string :
2685 "Empty");
201a51fc
AZ		 2686}
2687
2ff89790 2688/***********************************************************/
3023f332
AL		 2689/* register display */
2690
7b5d76da
AL		 2691struct DisplayAllocator default_allocator = {
2692 defaultallocator_create_displaysurface,
2693 defaultallocator_resize_displaysurface,
2694 defaultallocator_free_displaysurface
2695};
2696
3023f332
AL		 2697void register_displaystate(DisplayState *ds)
2698{
2699 DisplayState **s;
2700 s = &display_state;
2701 while (*s != NULL)
2702 s = &(*s)->next;
2703 ds->next = NULL;
2704 *s = ds;
2705}
2706
2707DisplayState *get_displaystate(void)
2708{
2709 return display_state;
2710}
2711
7b5d76da
AL		 2712DisplayAllocator *register_displayallocator(DisplayState *ds, DisplayAllocator *da)
2713{
2714 if(ds->allocator == &default_allocator) ds->allocator = da;
2715 return ds->allocator;
2716}
2717
2ff89790
TS		 2718/* dumb display */
2719
8f391ab4 2720static void dumb_display_init(void)
2ff89790 2721{
8f391ab4 2722 DisplayState *ds = qemu_mallocz(sizeof(DisplayState));
7b5d76da
AL		 2723 ds->allocator = &default_allocator;
2724 ds->surface = qemu_create_displaysurface(ds, 640, 480);
8f391ab4 2725 register_displaystate(ds);
2ff89790
TS		 2726}
2727
8a7ddc38
FB		 2728/***********************************************************/
2729/* I/O handling */
0824d6fc 2730
c4b1fcc0
FB		 2731typedef struct IOHandlerRecord {
2732 int fd;
7c9d8e07
FB		 2733 IOCanRWHandler *fd_read_poll;
2734 IOHandler *fd_read;
2735 IOHandler *fd_write;
cafffd40 2736 int deleted;
c4b1fcc0
FB		 2737 void *opaque;
2738 /* temporary data */
2739 struct pollfd *ufd;
8a7ddc38 2740 struct IOHandlerRecord *next;
c4b1fcc0
FB		 2741} IOHandlerRecord;
2742
8a7ddc38 2743static IOHandlerRecord *first_io_handler;
c4b1fcc0 2744
7c9d8e07
FB		 2745/* XXX: fd_read_poll should be suppressed, but an API change is
2746 necessary in the character devices to suppress fd_can_read(). */
5fafdf24
TS		 2747int qemu_set_fd_handler2(int fd,
2748 IOCanRWHandler *fd_read_poll,
2749 IOHandler *fd_read,
2750 IOHandler *fd_write,
7c9d8e07 2751 void *opaque)
c4b1fcc0 2752{
7c9d8e07 2753 IOHandlerRecord **pioh, *ioh;
c4b1fcc0 2754
7c9d8e07
FB		 2755 if (!fd_read && !fd_write) {
2756 pioh = &first_io_handler;
2757 for(;;) {
2758 ioh = *pioh;
2759 if (ioh == NULL)
2760 break;
2761 if (ioh->fd == fd) {
cafffd40 2762 ioh->deleted = 1;
7c9d8e07
FB		 2763 break;
2764 }
2765 pioh = &ioh->next;
2766 }
2767 } else {
2768 for(ioh = first_io_handler; ioh != NULL; ioh = ioh->next) {
2769 if (ioh->fd == fd)
2770 goto found;
2771 }
2772 ioh = qemu_mallocz(sizeof(IOHandlerRecord));
7c9d8e07
FB		 2773 ioh->next = first_io_handler;
2774 first_io_handler = ioh;
2775 found:
2776 ioh->fd = fd;
2777 ioh->fd_read_poll = fd_read_poll;
2778 ioh->fd_read = fd_read;
2779 ioh->fd_write = fd_write;
2780 ioh->opaque = opaque;
cafffd40 2781 ioh->deleted = 0;
7c9d8e07 2782 }
c4b1fcc0
FB		 2783 return 0;
2784}
2785
5fafdf24
TS		 2786int qemu_set_fd_handler(int fd,
2787 IOHandler *fd_read,
2788 IOHandler *fd_write,
7c9d8e07 2789 void *opaque)
8a7ddc38 2790{
7c9d8e07 2791 return qemu_set_fd_handler2(fd, NULL, fd_read, fd_write, opaque);
8a7ddc38
FB		 2792}
2793
56f3a5d0 2794#ifdef _WIN32
f331110f
FB		 2795/***********************************************************/
2796/* Polling handling */
2797
2798typedef struct PollingEntry {
2799 PollingFunc *func;
2800 void *opaque;
2801 struct PollingEntry *next;
2802} PollingEntry;
2803
2804static PollingEntry *first_polling_entry;
2805
2806int qemu_add_polling_cb(PollingFunc *func, void *opaque)
2807{
2808 PollingEntry **ppe, *pe;
2809 pe = qemu_mallocz(sizeof(PollingEntry));
f331110f
FB		 2810 pe->func = func;
2811 pe->opaque = opaque;
2812 for(ppe = &first_polling_entry; *ppe != NULL; ppe = &(*ppe)->next);
2813 *ppe = pe;
2814 return 0;
2815}
2816
2817void qemu_del_polling_cb(PollingFunc *func, void *opaque)
2818{
2819 PollingEntry **ppe, *pe;
2820 for(ppe = &first_polling_entry; *ppe != NULL; ppe = &(*ppe)->next) {
2821 pe = *ppe;
2822 if (pe->func == func && pe->opaque == opaque) {
2823 *ppe = pe->next;
2824 qemu_free(pe);
2825 break;
2826 }
2827 }
2828}
2829
a18e524a
FB		 2830/***********************************************************/
2831/* Wait objects support */
2832typedef struct WaitObjects {
2833 int num;
2834 HANDLE events[MAXIMUM_WAIT_OBJECTS + 1];
2835 WaitObjectFunc *func[MAXIMUM_WAIT_OBJECTS + 1];
2836 void *opaque[MAXIMUM_WAIT_OBJECTS + 1];
2837} WaitObjects;
2838
2839static WaitObjects wait_objects = {0};
3b46e624 2840
a18e524a
FB		 2841int qemu_add_wait_object(HANDLE handle, WaitObjectFunc *func, void *opaque)
2842{
2843 WaitObjects *w = &wait_objects;
2844
2845 if (w->num >= MAXIMUM_WAIT_OBJECTS)
2846 return -1;
2847 w->events[w->num] = handle;
2848 w->func[w->num] = func;
2849 w->opaque[w->num] = opaque;
2850 w->num++;
2851 return 0;
2852}
2853
2854void qemu_del_wait_object(HANDLE handle, WaitObjectFunc *func, void *opaque)
2855{
2856 int i, found;
2857 WaitObjects *w = &wait_objects;
2858
2859 found = 0;
2860 for (i = 0; i < w->num; i++) {
2861 if (w->events[i] == handle)
2862 found = 1;
2863 if (found) {
2864 w->events[i] = w->events[i + 1];
2865 w->func[i] = w->func[i + 1];
2866 w->opaque[i] = w->opaque[i + 1];
3b46e624 2867 }
a18e524a
FB		 2868 }
2869 if (found)
2870 w->num--;
2871}
2872#endif
2873
8a7ddc38
FB		 2874/***********************************************************/
2875/* ram save/restore */
2876
8a7ddc38
FB		 2877static int ram_get_page(QEMUFile *f, uint8_t *buf, int len)
2878{
2879 int v;
2880
2881 v = qemu_get_byte(f);
2882 switch(v) {
2883 case 0:
2884 if (qemu_get_buffer(f, buf, len) != len)
2885 return -EIO;
2886 break;
2887 case 1:
2888 v = qemu_get_byte(f);
2889 memset(buf, v, len);
2890 break;
2891 default:
2892 return -EINVAL;
2893 }
871d2f07
AL		 2894
2895 if (qemu_file_has_error(f))
2896 return -EIO;
2897
8a7ddc38
FB		 2898 return 0;
2899}
2900
c88676f8
FB		 2901static int ram_load_v1(QEMUFile *f, void *opaque)
2902{
00f82b8a
AJ		 2903 int ret;
2904 ram_addr_t i;
c88676f8 2905
94a6b54f 2906 if (qemu_get_be32(f) != last_ram_offset)
c88676f8 2907 return -EINVAL;
94a6b54f 2908 for(i = 0; i < last_ram_offset; i+= TARGET_PAGE_SIZE) {
5579c7f3 2909 ret = ram_get_page(f, qemu_get_ram_ptr(i), TARGET_PAGE_SIZE);
c88676f8
FB		 2910 if (ret)
2911 return ret;
2912 }
2913 return 0;
2914}
2915
2916#define BDRV_HASH_BLOCK_SIZE 1024
2917#define IOBUF_SIZE 4096
2918#define RAM_CBLOCK_MAGIC 0xfabe
2919
c88676f8
FB		 2920typedef struct RamDecompressState {
2921 z_stream zstream;
2922 QEMUFile *f;
2923 uint8_t buf[IOBUF_SIZE];
2924} RamDecompressState;
2925
2926static int ram_decompress_open(RamDecompressState *s, QEMUFile *f)
2927{
2928 int ret;
2929 memset(s, 0, sizeof(*s));
2930 s->f = f;
2931 ret = inflateInit(&s->zstream);
2932 if (ret != Z_OK)
2933 return -1;
2934 return 0;
2935}
2936
2937static int ram_decompress_buf(RamDecompressState *s, uint8_t *buf, int len)
2938{
2939 int ret, clen;
2940
2941 s->zstream.avail_out = len;
2942 s->zstream.next_out = buf;
2943 while (s->zstream.avail_out > 0) {
2944 if (s->zstream.avail_in == 0) {
2945 if (qemu_get_be16(s->f) != RAM_CBLOCK_MAGIC)
2946 return -1;
2947 clen = qemu_get_be16(s->f);
2948 if (clen > IOBUF_SIZE)
2949 return -1;
2950 qemu_get_buffer(s->f, s->buf, clen);
2951 s->zstream.avail_in = clen;
2952 s->zstream.next_in = s->buf;
2953 }
2954 ret = inflate(&s->zstream, Z_PARTIAL_FLUSH);
2955 if (ret != Z_OK && ret != Z_STREAM_END) {
2956 return -1;
2957 }
2958 }
2959 return 0;
2960}
2961
2962static void ram_decompress_close(RamDecompressState *s)
2963{
2964 inflateEnd(&s->zstream);
2965}
2966
475e4277
AL		 2967#define RAM_SAVE_FLAG_FULL 0x01
2968#define RAM_SAVE_FLAG_COMPRESS 0x02
2969#define RAM_SAVE_FLAG_MEM_SIZE 0x04
2970#define RAM_SAVE_FLAG_PAGE 0x08
2971#define RAM_SAVE_FLAG_EOS 0x10
2972
2973static int is_dup_page(uint8_t *page, uint8_t ch)
8a7ddc38 2974{
475e4277
AL		 2975 uint32_t val = ch << 24 | ch << 16 | ch << 8 | ch;
2976 uint32_t *array = (uint32_t *)page;
2977 int i;
3b46e624 2978
475e4277
AL		 2979 for (i = 0; i < (TARGET_PAGE_SIZE / 4); i++) {
2980 if (array[i] != val)
2981 return 0;
2982 }
2983
2984 return 1;
2985}
2986
2987static int ram_save_block(QEMUFile *f)
2988{
2989 static ram_addr_t current_addr = 0;
2990 ram_addr_t saved_addr = current_addr;
2991 ram_addr_t addr = 0;
2992 int found = 0;
2993
94a6b54f 2994 while (addr < last_ram_offset) {
475e4277 2995 if (cpu_physical_memory_get_dirty(current_addr, MIGRATION_DIRTY_FLAG)) {
5579c7f3 2996 uint8_t *p;
475e4277
AL		 2997
2998 cpu_physical_memory_reset_dirty(current_addr,
2999 current_addr + TARGET_PAGE_SIZE,
3000 MIGRATION_DIRTY_FLAG);
3001
5579c7f3 3002 p = qemu_get_ram_ptr(current_addr);
475e4277 3003
5579c7f3 3004 if (is_dup_page(p, *p)) {
475e4277 3005 qemu_put_be64(f, current_addr | RAM_SAVE_FLAG_COMPRESS);
5579c7f3 3006 qemu_put_byte(f, *p);
475e4277
AL		 3007 } else {
3008 qemu_put_be64(f, current_addr | RAM_SAVE_FLAG_PAGE);
5579c7f3 3009 qemu_put_buffer(f, p, TARGET_PAGE_SIZE);
c88676f8 3010 }
475e4277
AL		 3011
3012 found = 1;
3013 break;
c88676f8 3014 }
475e4277 3015 addr += TARGET_PAGE_SIZE;
94a6b54f 3016 current_addr = (saved_addr + addr) % last_ram_offset;
8a7ddc38 3017 }
475e4277
AL		 3018
3019 return found;
8a7ddc38
FB		 3020}
3021
9f9e28cd 3022static uint64_t bytes_transferred = 0;
475e4277
AL		 3023
3024static ram_addr_t ram_save_remaining(void)
3025{
3026 ram_addr_t addr;
3027 ram_addr_t count = 0;
3028
94a6b54f 3029 for (addr = 0; addr < last_ram_offset; addr += TARGET_PAGE_SIZE) {
475e4277
AL		 3030 if (cpu_physical_memory_get_dirty(addr, MIGRATION_DIRTY_FLAG))
3031 count++;
3032 }
3033
3034 return count;
3035}
3036
9f9e28cd
GC		 3037uint64_t ram_bytes_remaining(void)
3038{
3039 return ram_save_remaining() * TARGET_PAGE_SIZE;
3040}
3041
3042uint64_t ram_bytes_transferred(void)
3043{
3044 return bytes_transferred;
3045}
3046
3047uint64_t ram_bytes_total(void)
3048{
3049 return last_ram_offset;
3050}
3051
475e4277
AL		 3052static int ram_save_live(QEMUFile *f, int stage, void *opaque)
3053{
3054 ram_addr_t addr;
a0a3fd60
GC		 3055 uint64_t bytes_transferred_last;
3056 double bwidth = 0;
3057 uint64_t expected_time = 0;
475e4277 3058
9fa06385 3059 if (cpu_physical_sync_dirty_bitmap(0, TARGET_PHYS_ADDR_MAX) != 0) {
b0a46a33
JK		 3060 qemu_file_set_error(f);
3061 return 0;
3062 }
3063
475e4277
AL		 3064 if (stage == 1) {
3065 /* Make sure all dirty bits are set */
94a6b54f 3066 for (addr = 0; addr < last_ram_offset; addr += TARGET_PAGE_SIZE) {
475e4277
AL		 3067 if (!cpu_physical_memory_get_dirty(addr, MIGRATION_DIRTY_FLAG))
3068 cpu_physical_memory_set_dirty(addr);
3069 }
b0a46a33 3070
475e4277
AL		 3071 /* Enable dirty memory tracking */
3072 cpu_physical_memory_set_dirty_tracking(1);
3073
94a6b54f 3074 qemu_put_be64(f, last_ram_offset | RAM_SAVE_FLAG_MEM_SIZE);
475e4277
AL		 3075 }
3076
a0a3fd60
GC		 3077 bytes_transferred_last = bytes_transferred;
3078 bwidth = get_clock();
3079
475e4277
AL		 3080 while (!qemu_file_rate_limit(f)) {
3081 int ret;
3082
3083 ret = ram_save_block(f);
9f9e28cd 3084 bytes_transferred += ret * TARGET_PAGE_SIZE;
475e4277
AL		 3085 if (ret == 0) /* no more blocks */
3086 break;
3087 }
3088
a0a3fd60
GC		 3089 bwidth = get_clock() - bwidth;
3090 bwidth = (bytes_transferred - bytes_transferred_last) / bwidth;
3091
3092 /* if we haven't transferred anything this round, force expected_time to a
3093 * a very high value, but without crashing */
3094 if (bwidth == 0)
3095 bwidth = 0.000001;
3096
475e4277
AL		 3097 /* try transferring iterative blocks of memory */
3098
3099 if (stage == 3) {
475e4277
AL		 3100
3101 /* flush all remaining blocks regardless of rate limiting */
9f9e28cd
GC		 3102 while (ram_save_block(f) != 0) {
3103 bytes_transferred += TARGET_PAGE_SIZE;
3104 }
8215e914 3105 cpu_physical_memory_set_dirty_tracking(0);
475e4277
AL		 3106 }
3107
3108 qemu_put_be64(f, RAM_SAVE_FLAG_EOS);
3109
a0a3fd60
GC		 3110 expected_time = ram_save_remaining() * TARGET_PAGE_SIZE / bwidth;
3111
3112 return (stage == 2) && (expected_time <= migrate_max_downtime());
475e4277
AL		 3113}
3114
3115static int ram_load_dead(QEMUFile *f, void *opaque)
8a7ddc38 3116{
c88676f8
FB		 3117 RamDecompressState s1, *s = &s1;
3118 uint8_t buf[10];
00f82b8a 3119 ram_addr_t i;
8a7ddc38 3120
c88676f8
FB		 3121 if (ram_decompress_open(s, f) < 0)
3122 return -EINVAL;
94a6b54f 3123 for(i = 0; i < last_ram_offset; i+= BDRV_HASH_BLOCK_SIZE) {
c88676f8
FB		 3124 if (ram_decompress_buf(s, buf, 1) < 0) {
3125 fprintf(stderr, "Error while reading ram block header\n");
3126 goto error;
3127 }
3128 if (buf[0] == 0) {
5579c7f3
PB		 3129 if (ram_decompress_buf(s, qemu_get_ram_ptr(i),
3130 BDRV_HASH_BLOCK_SIZE) < 0) {
00f82b8a 3131 fprintf(stderr, "Error while reading ram block address=0x%08" PRIx64, (uint64_t)i);
c88676f8
FB		 3132 goto error;
3133 }
475e4277 3134 } else {
c88676f8
FB		 3135 error:
3136 printf("Error block header\n");
3137 return -EINVAL;
3138 }
8a7ddc38 3139 }
c88676f8 3140 ram_decompress_close(s);
475e4277
AL		 3141
3142 return 0;
3143}
3144
3145static int ram_load(QEMUFile *f, void *opaque, int version_id)
3146{
3147 ram_addr_t addr;
3148 int flags;
3149
3150 if (version_id == 1)
3151 return ram_load_v1(f, opaque);
3152
3153 if (version_id == 2) {
94a6b54f 3154 if (qemu_get_be32(f) != last_ram_offset)
475e4277
AL		 3155 return -EINVAL;
3156 return ram_load_dead(f, opaque);
3157 }
3158
3159 if (version_id != 3)
3160 return -EINVAL;
3161
3162 do {
3163 addr = qemu_get_be64(f);
3164
3165 flags = addr & ~TARGET_PAGE_MASK;
3166 addr &= TARGET_PAGE_MASK;
3167
3168 if (flags & RAM_SAVE_FLAG_MEM_SIZE) {
94a6b54f 3169 if (addr != last_ram_offset)
475e4277
AL		 3170 return -EINVAL;
3171 }
3172
3173 if (flags & RAM_SAVE_FLAG_FULL) {
3174 if (ram_load_dead(f, opaque) < 0)
3175 return -EINVAL;
3176 }
3177
3178 if (flags & RAM_SAVE_FLAG_COMPRESS) {
3179 uint8_t ch = qemu_get_byte(f);
779c6bef
AL		 3180 memset(qemu_get_ram_ptr(addr), ch, TARGET_PAGE_SIZE);
3181#ifndef _WIN32
30868442
AL		 3182 if (ch == 0 &&
3183 (!kvm_enabled() || kvm_has_sync_mmu())) {
3184 madvise(qemu_get_ram_ptr(addr), TARGET_PAGE_SIZE, MADV_DONTNEED);
779c6bef 3185 }
30868442 3186#endif
475e4277 3187 } else if (flags & RAM_SAVE_FLAG_PAGE)
5579c7f3 3188 qemu_get_buffer(f, qemu_get_ram_ptr(addr), TARGET_PAGE_SIZE);
475e4277
AL		 3189 } while (!(flags & RAM_SAVE_FLAG_EOS));
3190
8a7ddc38
FB		 3191 return 0;
3192}
3193
9e472e10
AL		 3194void qemu_service_io(void)
3195{
d9f75a4e 3196 qemu_notify_event();
9e472e10
AL		 3197}
3198
83f64091
FB		 3199/***********************************************************/
3200/* bottom halves (can be seen as timers which expire ASAP) */
3201
3202struct QEMUBH {
3203 QEMUBHFunc *cb;
3204 void *opaque;
3205 int scheduled;
1b435b10
AL		 3206 int idle;
3207 int deleted;
83f64091
FB		 3208 QEMUBH *next;
3209};
3210
3211static QEMUBH *first_bh = NULL;
3212
3213QEMUBH *qemu_bh_new(QEMUBHFunc *cb, void *opaque)
3214{
3215 QEMUBH *bh;
3216 bh = qemu_mallocz(sizeof(QEMUBH));
83f64091
FB		 3217 bh->cb = cb;
3218 bh->opaque = opaque;
1b435b10
AL		 3219 bh->next = first_bh;
3220 first_bh = bh;
83f64091
FB		 3221 return bh;
3222}
3223
6eb5733a 3224int qemu_bh_poll(void)
83f64091 3225{
1b435b10 3226 QEMUBH *bh, **bhp;
6eb5733a 3227 int ret;
83f64091 3228
6eb5733a 3229 ret = 0;
1b435b10
AL		 3230 for (bh = first_bh; bh; bh = bh->next) {
3231 if (!bh->deleted && bh->scheduled) {
3232 bh->scheduled = 0;
3233 if (!bh->idle)
3234 ret = 1;
3235 bh->idle = 0;
3236 bh->cb(bh->opaque);
3237 }
83f64091 3238 }
1b435b10
AL		 3239
3240 /* remove deleted bhs */
3241 bhp = &first_bh;
3242 while (*bhp) {
3243 bh = *bhp;
3244 if (bh->deleted) {
3245 *bhp = bh->next;
3246 qemu_free(bh);
3247 } else
3248 bhp = &bh->next;
3249 }
3250
6eb5733a 3251 return ret;
83f64091
FB		 3252}
3253
1b435b10
AL		 3254void qemu_bh_schedule_idle(QEMUBH *bh)
3255{
3256 if (bh->scheduled)
3257 return;
3258 bh->scheduled = 1;
3259 bh->idle = 1;
3260}
3261
83f64091
FB		 3262void qemu_bh_schedule(QEMUBH *bh)
3263{
83f64091
FB		 3264 if (bh->scheduled)
3265 return;
3266 bh->scheduled = 1;
1b435b10 3267 bh->idle = 0;
83f64091 3268 /* stop the currently executing CPU to execute the BH ASAP */
d9f75a4e 3269 qemu_notify_event();
83f64091
FB		 3270}
3271
3272void qemu_bh_cancel(QEMUBH *bh)
3273{
1b435b10 3274 bh->scheduled = 0;
83f64091
FB		 3275}
3276
3277void qemu_bh_delete(QEMUBH *bh)
3278{
1b435b10
AL		 3279 bh->scheduled = 0;
3280 bh->deleted = 1;
83f64091
FB		 3281}
3282
56f3a5d0
AL		 3283static void qemu_bh_update_timeout(int *timeout)
3284{
3285 QEMUBH *bh;
3286
3287 for (bh = first_bh; bh; bh = bh->next) {
3288 if (!bh->deleted && bh->scheduled) {
3289 if (bh->idle) {
3290 /* idle bottom halves will be polled at least
3291 * every 10ms */
3292 *timeout = MIN(10, *timeout);
3293 } else {
3294 /* non-idle bottom halves will be executed
3295 * immediately */
3296 *timeout = 0;
3297 break;
3298 }
3299 }
3300 }
3301}
3302
cc1daa40
FB		 3303/***********************************************************/
3304/* machine registration */
3305
bdaf78e0 3306static QEMUMachine *first_machine = NULL;
6f338c34 3307QEMUMachine *current_machine = NULL;
cc1daa40
FB		 3308
3309int qemu_register_machine(QEMUMachine *m)
3310{
3311 QEMUMachine **pm;
3312 pm = &first_machine;
3313 while (*pm != NULL)
3314 pm = &(*pm)->next;
3315 m->next = NULL;
3316 *pm = m;
3317 return 0;
3318}
3319
9596ebb7 3320static QEMUMachine *find_machine(const char *name)
cc1daa40
FB		 3321{
3322 QEMUMachine *m;
3323
3324 for(m = first_machine; m != NULL; m = m->next) {
3325 if (!strcmp(m->name, name))
3326 return m;
3f6599e6
MM		 3327 if (m->alias && !strcmp(m->alias, name))
3328 return m;
cc1daa40
FB		 3329 }
3330 return NULL;
3331}
3332
0c257437
AL		 3333static QEMUMachine *find_default_machine(void)
3334{
3335 QEMUMachine *m;
3336
3337 for(m = first_machine; m != NULL; m = m->next) {
3338 if (m->is_default) {
3339 return m;
3340 }
3341 }
3342 return NULL;
3343}
3344
8a7ddc38
FB		 3345/***********************************************************/
3346/* main execution loop */
3347
9596ebb7 3348static void gui_update(void *opaque)
8a7ddc38 3349{
7d957bd8 3350 uint64_t interval = GUI_REFRESH_INTERVAL;
740733bb 3351 DisplayState *ds = opaque;
7d957bd8
AL		 3352 DisplayChangeListener *dcl = ds->listeners;
3353
3354 dpy_refresh(ds);
3355
3356 while (dcl != NULL) {
3357 if (dcl->gui_timer_interval &&
3358 dcl->gui_timer_interval < interval)
3359 interval = dcl->gui_timer_interval;
3360 dcl = dcl->next;
3361 }
3362 qemu_mod_timer(ds->gui_timer, interval + qemu_get_clock(rt_clock));
8a7ddc38
FB		 3363}
3364
9043b62d
BS		 3365static void nographic_update(void *opaque)
3366{
3367 uint64_t interval = GUI_REFRESH_INTERVAL;
3368
3369 qemu_mod_timer(nographic_timer, interval + qemu_get_clock(rt_clock));
3370}
3371
0bd48850
FB		 3372struct vm_change_state_entry {
3373 VMChangeStateHandler *cb;
3374 void *opaque;
3375 LIST_ENTRY (vm_change_state_entry) entries;
3376};
3377
3378static LIST_HEAD(vm_change_state_head, vm_change_state_entry) vm_change_state_head;
3379
3380VMChangeStateEntry *qemu_add_vm_change_state_handler(VMChangeStateHandler *cb,
3381 void *opaque)
3382{
3383 VMChangeStateEntry *e;
3384
3385 e = qemu_mallocz(sizeof (*e));
0bd48850
FB		 3386
3387 e->cb = cb;
3388 e->opaque = opaque;
3389 LIST_INSERT_HEAD(&vm_change_state_head, e, entries);
3390 return e;
3391}
3392
3393void qemu_del_vm_change_state_handler(VMChangeStateEntry *e)
3394{
3395 LIST_REMOVE (e, entries);
3396 qemu_free (e);
3397}
3398
9781e040 3399static void vm_state_notify(int running, int reason)
0bd48850
FB		 3400{
3401 VMChangeStateEntry *e;
3402
3403 for (e = vm_change_state_head.lh_first; e; e = e->entries.le_next) {
9781e040 3404 e->cb(e->opaque, running, reason);
0bd48850
FB		 3405 }
3406}
3407
d6dc3d42
AL		 3408static void resume_all_vcpus(void);
3409static void pause_all_vcpus(void);
3410
8a7ddc38
FB		 3411void vm_start(void)
3412{
3413 if (!vm_running) {
3414 cpu_enable_ticks();
3415 vm_running = 1;
9781e040 3416 vm_state_notify(1, 0);
efe75411 3417 qemu_rearm_alarm_timer(alarm_timer);
d6dc3d42 3418 resume_all_vcpus();
8a7ddc38
FB		 3419 }
3420}
3421
bb0c6722
FB		 3422/* reset/shutdown handler */
3423
3424typedef struct QEMUResetEntry {
55ddfe8e 3425 TAILQ_ENTRY(QEMUResetEntry) entry;
bb0c6722
FB		 3426 QEMUResetHandler *func;
3427 void *opaque;
bb0c6722
FB		 3428} QEMUResetEntry;
3429
55ddfe8e
JK		 3430static TAILQ_HEAD(reset_handlers, QEMUResetEntry) reset_handlers =
3431 TAILQ_HEAD_INITIALIZER(reset_handlers);
bb0c6722
FB		 3432static int reset_requested;
3433static int shutdown_requested;
3475187d 3434static int powerdown_requested;
e568902a 3435static int debug_requested;
6e29f5da 3436static int vmstop_requested;
bb0c6722 3437
cf7a2fe2
AJ		 3438int qemu_shutdown_requested(void)
3439{
3440 int r = shutdown_requested;
3441 shutdown_requested = 0;
3442 return r;
3443}
3444
3445int qemu_reset_requested(void)
3446{
3447 int r = reset_requested;
3448 reset_requested = 0;
3449 return r;
3450}
3451
3452int qemu_powerdown_requested(void)
3453{
3454 int r = powerdown_requested;
3455 powerdown_requested = 0;
3456 return r;
3457}
3458
e568902a
AL		 3459static int qemu_debug_requested(void)
3460{
3461 int r = debug_requested;
3462 debug_requested = 0;
3463 return r;
3464}
3465
6e29f5da
AL		 3466static int qemu_vmstop_requested(void)
3467{
3468 int r = vmstop_requested;
3469 vmstop_requested = 0;
3470 return r;
3471}
3472
3473static void do_vm_stop(int reason)
3474{
3475 if (vm_running) {
3476 cpu_disable_ticks();
3477 vm_running = 0;
d6dc3d42 3478 pause_all_vcpus();
6e29f5da
AL		 3479 vm_state_notify(0, reason);
3480 }
3481}
3482
a08d4367 3483void qemu_register_reset(QEMUResetHandler *func, void *opaque)
bb0c6722 3484{
55ddfe8e 3485 QEMUResetEntry *re = qemu_mallocz(sizeof(QEMUResetEntry));
bb0c6722 3486
bb0c6722
FB		 3487 re->func = func;
3488 re->opaque = opaque;
55ddfe8e 3489 TAILQ_INSERT_TAIL(&reset_handlers, re, entry);
bb0c6722
FB		 3490}
3491
dda9b29f 3492void qemu_unregister_reset(QEMUResetHandler *func, void *opaque)
bb0c6722
FB		 3493{
3494 QEMUResetEntry *re;
3495
55ddfe8e 3496 TAILQ_FOREACH(re, &reset_handlers, entry) {
dda9b29f
JK		 3497 if (re->func == func && re->opaque == opaque) {
3498 TAILQ_REMOVE(&reset_handlers, re, entry);
3499 qemu_free(re);
3500 return;
3501 }
3502 }
3503}
3504
3505void qemu_system_reset(void)
3506{
3507 QEMUResetEntry *re, *nre;
3508
3509 /* reset all devices */
3510 TAILQ_FOREACH_SAFE(re, &reset_handlers, entry, nre) {
bb0c6722
FB		 3511 re->func(re->opaque);
3512 }
3513}
3514
3515void qemu_system_reset_request(void)
3516{
d1beab82
FB		 3517 if (no_reboot) {
3518 shutdown_requested = 1;
3519 } else {
3520 reset_requested = 1;
3521 }
d9f75a4e 3522 qemu_notify_event();
bb0c6722
FB		 3523}
3524
3525void qemu_system_shutdown_request(void)
3526{
3527 shutdown_requested = 1;
d9f75a4e 3528 qemu_notify_event();
bb0c6722
FB		 3529}
3530
3475187d
FB		 3531void qemu_system_powerdown_request(void)
3532{
3533 powerdown_requested = 1;
d9f75a4e
AL		 3534 qemu_notify_event();
3535}
3536
d6dc3d42
AL		 3537#ifdef CONFIG_IOTHREAD
3538static void qemu_system_vmstop_request(int reason)
d9f75a4e 3539{
d6dc3d42
AL		 3540 vmstop_requested = reason;
3541 qemu_notify_event();
bb0c6722 3542}
d6dc3d42 3543#endif
bb0c6722 3544
50317c7f
AL		 3545#ifndef _WIN32
3546static int io_thread_fd = -1;
3547
3548static void qemu_event_increment(void)
3fcf7b6b 3549{
50317c7f
AL		 3550 static const char byte = 0;
3551
3552 if (io_thread_fd == -1)
3553 return;
3554
3555 write(io_thread_fd, &byte, sizeof(byte));
3556}
3557
3558static void qemu_event_read(void *opaque)
3559{
3560 int fd = (unsigned long)opaque;
3561 ssize_t len;
3562
3563 /* Drain the notify pipe */
3564 do {
3565 char buffer[512];
3566 len = read(fd, buffer, sizeof(buffer));
3567 } while ((len == -1 && errno == EINTR) || len > 0);
3568}
3569
3570static int qemu_event_init(void)
3571{
3572 int err;
3573 int fds[2];
3574
3575 err = pipe(fds);
3576 if (err == -1)
3577 return -errno;
3578
3579 err = fcntl_setfl(fds[0], O_NONBLOCK);
3580 if (err < 0)
3581 goto fail;
3582
3583 err = fcntl_setfl(fds[1], O_NONBLOCK);
3584 if (err < 0)
3585 goto fail;
3586
3587 qemu_set_fd_handler2(fds[0], NULL, qemu_event_read, NULL,
3588 (void *)(unsigned long)fds[0]);
3589
3590 io_thread_fd = fds[1];
a7e21219
JK		 3591 return 0;
3592
50317c7f
AL		 3593fail:
3594 close(fds[0]);
3595 close(fds[1]);
3596 return err;
3597}
3598#else
3599HANDLE qemu_event_handle;
3600
3601static void dummy_event_handler(void *opaque)
3602{
3603}
3604
3605static int qemu_event_init(void)
3606{
3607 qemu_event_handle = CreateEvent(NULL, FALSE, FALSE, NULL);
3608 if (!qemu_event_handle) {
3609 perror("Failed CreateEvent");
3610 return -1;
3611 }
3612 qemu_add_wait_object(qemu_event_handle, dummy_event_handler, NULL);
3fcf7b6b
AL		 3613 return 0;
3614}
3615
50317c7f
AL		 3616static void qemu_event_increment(void)
3617{
3618 SetEvent(qemu_event_handle);
3619}
3620#endif
3621
d6dc3d42
AL		 3622static int cpu_can_run(CPUState *env)
3623{
3624 if (env->stop)
3625 return 0;
3626 if (env->stopped)
3627 return 0;
3628 return 1;
3629}
3630
3631#ifndef CONFIG_IOTHREAD
50317c7f
AL		 3632static int qemu_init_main_loop(void)
3633{
3634 return qemu_event_init();
3635}
3636
0bf46a40
AL		 3637void qemu_init_vcpu(void *_env)
3638{
3639 CPUState *env = _env;
3640
3641 if (kvm_enabled())
3642 kvm_init_vcpu(env);
dc6b1c09
AP		 3643 env->nr_cores = smp_cores;
3644 env->nr_threads = smp_threads;
0bf46a40
AL		 3645 return;
3646}
3647
8edac960
AL		 3648int qemu_cpu_self(void *env)
3649{
3650 return 1;
3651}
3652
d6dc3d42
AL		 3653static void resume_all_vcpus(void)
3654{
3655}
3656
3657static void pause_all_vcpus(void)
3658{
3659}
3660
8edac960
AL		 3661void qemu_cpu_kick(void *env)
3662{
3663 return;
3664}
3665
d6dc3d42
AL		 3666void qemu_notify_event(void)
3667{
3668 CPUState *env = cpu_single_env;
3669
3670 if (env) {
3671 cpu_exit(env);
4a1418e0 3672 }
d6dc3d42
AL		 3673}
3674
4870852c
AL		 3675#define qemu_mutex_lock_iothread() do { } while (0)
3676#define qemu_mutex_unlock_iothread() do { } while (0)
3677
6e29f5da
AL		 3678void vm_stop(int reason)
3679{
3680 do_vm_stop(reason);
3681}
3682
d6dc3d42
AL		 3683#else /* CONFIG_IOTHREAD */
3684
3685#include "qemu-thread.h"
3686
3687QemuMutex qemu_global_mutex;
3688static QemuMutex qemu_fair_mutex;
3689
3690static QemuThread io_thread;
3691
3692static QemuThread *tcg_cpu_thread;
3693static QemuCond *tcg_halt_cond;
3694
3695static int qemu_system_ready;
3696/* cpu creation */
3697static QemuCond qemu_cpu_cond;
3698/* system init */
3699static QemuCond qemu_system_cond;
3700static QemuCond qemu_pause_cond;
3701
3702static void block_io_signals(void);
3703static void unblock_io_signals(void);
3704static int tcg_has_work(void);
3705
3706static int qemu_init_main_loop(void)
3707{
3708 int ret;
3709
3710 ret = qemu_event_init();
3711 if (ret)
3712 return ret;
3713
3714 qemu_cond_init(&qemu_pause_cond);
3715 qemu_mutex_init(&qemu_fair_mutex);
3716 qemu_mutex_init(&qemu_global_mutex);
3717 qemu_mutex_lock(&qemu_global_mutex);
3718
3719 unblock_io_signals();
3720 qemu_thread_self(&io_thread);
3721
3722 return 0;
3723}
3724
3725static void qemu_wait_io_event(CPUState *env)
3726{
3727 while (!tcg_has_work())
3728 qemu_cond_timedwait(env->halt_cond, &qemu_global_mutex, 1000);
3729
3730 qemu_mutex_unlock(&qemu_global_mutex);
3731
3732 /*
3733 * Users of qemu_global_mutex can be starved, having no chance
3734 * to acquire it since this path will get to it first.
3735 * So use another lock to provide fairness.
3736 */
3737 qemu_mutex_lock(&qemu_fair_mutex);
3738 qemu_mutex_unlock(&qemu_fair_mutex);
3739
3740 qemu_mutex_lock(&qemu_global_mutex);
3741 if (env->stop) {
3742 env->stop = 0;
3743 env->stopped = 1;
3744 qemu_cond_signal(&qemu_pause_cond);
3745 }
3746}
3747
3748static int qemu_cpu_exec(CPUState *env);
3749
3750static void *kvm_cpu_thread_fn(void *arg)
3751{
3752 CPUState *env = arg;
3753
3754 block_io_signals();
3755 qemu_thread_self(env->thread);
4e2f73ce 3756 kvm_init_vcpu(env);
d6dc3d42
AL		 3757
3758 /* signal CPU creation */
3759 qemu_mutex_lock(&qemu_global_mutex);
3760 env->created = 1;
3761 qemu_cond_signal(&qemu_cpu_cond);
3762
3763 /* and wait for machine initialization */
3764 while (!qemu_system_ready)
3765 qemu_cond_timedwait(&qemu_system_cond, &qemu_global_mutex, 100);
3766
3767 while (1) {
3768 if (cpu_can_run(env))
3769 qemu_cpu_exec(env);
3770 qemu_wait_io_event(env);
3771 }
3772
3773 return NULL;
3774}
3775
3776static void tcg_cpu_exec(void);
3777
3778static void *tcg_cpu_thread_fn(void *arg)
3779{
3780 CPUState *env = arg;
3781
3782 block_io_signals();
3783 qemu_thread_self(env->thread);
3784
3785 /* signal CPU creation */
3786 qemu_mutex_lock(&qemu_global_mutex);
3787 for (env = first_cpu; env != NULL; env = env->next_cpu)
3788 env->created = 1;
3789 qemu_cond_signal(&qemu_cpu_cond);
3790
3791 /* and wait for machine initialization */
3792 while (!qemu_system_ready)
3793 qemu_cond_timedwait(&qemu_system_cond, &qemu_global_mutex, 100);
3794
3795 while (1) {
3796 tcg_cpu_exec();
3797 qemu_wait_io_event(cur_cpu);
3798 }
3799
3800 return NULL;
3801}
3802
3803void qemu_cpu_kick(void *_env)
3804{
3805 CPUState *env = _env;
3806 qemu_cond_broadcast(env->halt_cond);
3807 if (kvm_enabled())
3808 qemu_thread_signal(env->thread, SIGUSR1);
3809}
3810
3811int qemu_cpu_self(void *env)
3812{
3813 return (cpu_single_env != NULL);
3814}
3815
3816static void cpu_signal(int sig)
3817{
3818 if (cpu_single_env)
3819 cpu_exit(cpu_single_env);
3820}
3821
3822static void block_io_signals(void)
3823{
3824 sigset_t set;
3825 struct sigaction sigact;
3826
3827 sigemptyset(&set);
3828 sigaddset(&set, SIGUSR2);
3829 sigaddset(&set, SIGIO);
3830 sigaddset(&set, SIGALRM);
3831 pthread_sigmask(SIG_BLOCK, &set, NULL);
3832
3833 sigemptyset(&set);
3834 sigaddset(&set, SIGUSR1);
3835 pthread_sigmask(SIG_UNBLOCK, &set, NULL);
3836
3837 memset(&sigact, 0, sizeof(sigact));
3838 sigact.sa_handler = cpu_signal;
3839 sigaction(SIGUSR1, &sigact, NULL);
3840}
3841
3842static void unblock_io_signals(void)
3843{
3844 sigset_t set;
3845
3846 sigemptyset(&set);
3847 sigaddset(&set, SIGUSR2);
3848 sigaddset(&set, SIGIO);
3849 sigaddset(&set, SIGALRM);
3850 pthread_sigmask(SIG_UNBLOCK, &set, NULL);
3851
3852 sigemptyset(&set);
3853 sigaddset(&set, SIGUSR1);
3854 pthread_sigmask(SIG_BLOCK, &set, NULL);
3855}
3856
3857static void qemu_signal_lock(unsigned int msecs)
3858{
3859 qemu_mutex_lock(&qemu_fair_mutex);
3860
3861 while (qemu_mutex_trylock(&qemu_global_mutex)) {
3862 qemu_thread_signal(tcg_cpu_thread, SIGUSR1);
3863 if (!qemu_mutex_timedlock(&qemu_global_mutex, msecs))
3864 break;
3865 }
3866 qemu_mutex_unlock(&qemu_fair_mutex);
3867}
3868
3869static void qemu_mutex_lock_iothread(void)
3870{
3871 if (kvm_enabled()) {
3872 qemu_mutex_lock(&qemu_fair_mutex);
3873 qemu_mutex_lock(&qemu_global_mutex);
3874 qemu_mutex_unlock(&qemu_fair_mutex);
3875 } else
3876 qemu_signal_lock(100);
3877}
3878
3879static void qemu_mutex_unlock_iothread(void)
3880{
3881 qemu_mutex_unlock(&qemu_global_mutex);
3882}
3883
3884static int all_vcpus_paused(void)
3885{
3886 CPUState *penv = first_cpu;
3887
3888 while (penv) {
3889 if (!penv->stopped)
3890 return 0;
3891 penv = (CPUState *)penv->next_cpu;
3892 }
3893
3894 return 1;
3895}
3896
3897static void pause_all_vcpus(void)
3898{
3899 CPUState *penv = first_cpu;
3900
3901 while (penv) {
3902 penv->stop = 1;
3903 qemu_thread_signal(penv->thread, SIGUSR1);
3904 qemu_cpu_kick(penv);
3905 penv = (CPUState *)penv->next_cpu;
3906 }
3907
3908 while (!all_vcpus_paused()) {
3909 qemu_cond_timedwait(&qemu_pause_cond, &qemu_global_mutex, 100);
3910 penv = first_cpu;
3911 while (penv) {
3912 qemu_thread_signal(penv->thread, SIGUSR1);
3913 penv = (CPUState *)penv->next_cpu;
3914 }
3915 }
3916}
3917
3918static void resume_all_vcpus(void)
3919{
3920 CPUState *penv = first_cpu;
3921
3922 while (penv) {
3923 penv->stop = 0;
3924 penv->stopped = 0;
3925 qemu_thread_signal(penv->thread, SIGUSR1);
3926 qemu_cpu_kick(penv);
3927 penv = (CPUState *)penv->next_cpu;
3928 }
3929}
3930
3931static void tcg_init_vcpu(void *_env)
3932{
3933 CPUState *env = _env;
3934 /* share a single thread for all cpus with TCG */
3935 if (!tcg_cpu_thread) {
3936 env->thread = qemu_mallocz(sizeof(QemuThread));
3937 env->halt_cond = qemu_mallocz(sizeof(QemuCond));
3938 qemu_cond_init(env->halt_cond);
3939 qemu_thread_create(env->thread, tcg_cpu_thread_fn, env);
3940 while (env->created == 0)
3941 qemu_cond_timedwait(&qemu_cpu_cond, &qemu_global_mutex, 100);
3942 tcg_cpu_thread = env->thread;
3943 tcg_halt_cond = env->halt_cond;
3944 } else {
3945 env->thread = tcg_cpu_thread;
3946 env->halt_cond = tcg_halt_cond;
3947 }
3948}
3949
3950static void kvm_start_vcpu(CPUState *env)
3951{
d6dc3d42
AL		 3952 env->thread = qemu_mallocz(sizeof(QemuThread));
3953 env->halt_cond = qemu_mallocz(sizeof(QemuCond));
3954 qemu_cond_init(env->halt_cond);
3955 qemu_thread_create(env->thread, kvm_cpu_thread_fn, env);
3956 while (env->created == 0)
3957 qemu_cond_timedwait(&qemu_cpu_cond, &qemu_global_mutex, 100);
3958}
3959
3960void qemu_init_vcpu(void *_env)
3961{
3962 CPUState *env = _env;
3963
3964 if (kvm_enabled())
3965 kvm_start_vcpu(env);
3966 else
3967 tcg_init_vcpu(env);
dc6b1c09
AP		 3968 env->nr_cores = smp_cores;
3969 env->nr_threads = smp_threads;
d6dc3d42
AL		 3970}
3971
3972void qemu_notify_event(void)
3973{
3974 qemu_event_increment();
3975}
3976
3977void vm_stop(int reason)
3978{
3979 QemuThread me;
3980 qemu_thread_self(&me);
3981
3982 if (!qemu_thread_equal(&me, &io_thread)) {
3983 qemu_system_vmstop_request(reason);
3984 /*
3985 * FIXME: should not return to device code in case
3986 * vm_stop() has been requested.
3987 */
3988 if (cpu_single_env) {
3989 cpu_exit(cpu_single_env);
3990 cpu_single_env->stop = 1;
3991 }
3992 return;
3993 }
3994 do_vm_stop(reason);
3995}
3996
3997#endif
3998
3999
877cf882 4000#ifdef _WIN32
69d6451c 4001static void host_main_loop_wait(int *timeout)
56f3a5d0
AL		 4002{
4003 int ret, ret2, i;
f331110f
FB		 4004 PollingEntry *pe;
4005
c4b1fcc0 4006
f331110f
FB		 4007 /* XXX: need to suppress polling by better using win32 events */
4008 ret = 0;
4009 for(pe = first_polling_entry; pe != NULL; pe = pe->next) {
4010 ret |= pe->func(pe->opaque);
4011 }
e6b1e558 4012 if (ret == 0) {
a18e524a
FB		 4013 int err;
4014 WaitObjects *w = &wait_objects;
3b46e624 4015
56f3a5d0 4016 ret = WaitForMultipleObjects(w->num, w->events, FALSE, *timeout);
a18e524a
FB		 4017 if (WAIT_OBJECT_0 + 0 <= ret && ret <= WAIT_OBJECT_0 + w->num - 1) {
4018 if (w->func[ret - WAIT_OBJECT_0])
4019 w->func[ret - WAIT_OBJECT_0](w->opaque[ret - WAIT_OBJECT_0]);
3b46e624 4020
5fafdf24 4021 /* Check for additional signaled events */
e6b1e558 4022 for(i = (ret - WAIT_OBJECT_0 + 1); i < w->num; i++) {
3b46e624 4023
e6b1e558
TS		 4024 /* Check if event is signaled */
4025 ret2 = WaitForSingleObject(w->events[i], 0);
4026 if(ret2 == WAIT_OBJECT_0) {
4027 if (w->func[i])
4028 w->func[i](w->opaque[i]);
4029 } else if (ret2 == WAIT_TIMEOUT) {
4030 } else {
4031 err = GetLastError();
4032 fprintf(stderr, "WaitForSingleObject error %d %d\n", i, err);
3b46e624
TS		 4033 }
4034 }
a18e524a
FB		 4035 } else if (ret == WAIT_TIMEOUT) {
4036 } else {
4037 err = GetLastError();
e6b1e558 4038 fprintf(stderr, "WaitForMultipleObjects error %d %d\n", ret, err);
a18e524a 4039 }
f331110f 4040 }
56f3a5d0
AL		 4041
4042 *timeout = 0;
4043}
4044#else
69d6451c 4045static void host_main_loop_wait(int *timeout)
56f3a5d0
AL		 4046{
4047}
fd1dff4b 4048#endif
56f3a5d0
AL		 4049
4050void main_loop_wait(int timeout)
4051{
4052 IOHandlerRecord *ioh;
4053 fd_set rfds, wfds, xfds;
4054 int ret, nfds;
4055 struct timeval tv;
4056
4057 qemu_bh_update_timeout(&timeout);
4058
4059 host_main_loop_wait(&timeout);
4060
fd1dff4b
FB		 4061 /* poll any events */
4062 /* XXX: separate device handlers from system ones */
6abfbd79 4063 nfds = -1;
fd1dff4b
FB		 4064 FD_ZERO(&rfds);
4065 FD_ZERO(&wfds);
e035649e 4066 FD_ZERO(&xfds);
fd1dff4b 4067 for(ioh = first_io_handler; ioh != NULL; ioh = ioh->next) {
cafffd40
TS		 4068 if (ioh->deleted)
4069 continue;
fd1dff4b
FB		 4070 if (ioh->fd_read &&
4071 (!ioh->fd_read_poll ||
4072 ioh->fd_read_poll(ioh->opaque) != 0)) {
4073 FD_SET(ioh->fd, &rfds);
4074 if (ioh->fd > nfds)
4075 nfds = ioh->fd;
4076 }
4077 if (ioh->fd_write) {
4078 FD_SET(ioh->fd, &wfds);
4079 if (ioh->fd > nfds)
4080 nfds = ioh->fd;
4081 }
4082 }
3b46e624 4083
56f3a5d0
AL		 4084 tv.tv_sec = timeout / 1000;
4085 tv.tv_usec = (timeout % 1000) * 1000;
4086
d918f23e
JK		 4087 slirp_select_fill(&nfds, &rfds, &wfds, &xfds);
4088
4870852c 4089 qemu_mutex_unlock_iothread();
e035649e 4090 ret = select(nfds + 1, &rfds, &wfds, &xfds, &tv);
4870852c 4091 qemu_mutex_lock_iothread();
fd1dff4b 4092 if (ret > 0) {
cafffd40
TS		 4093 IOHandlerRecord **pioh;
4094
4095 for(ioh = first_io_handler; ioh != NULL; ioh = ioh->next) {
6ab43fdc 4096 if (!ioh->deleted && ioh->fd_read && FD_ISSET(ioh->fd, &rfds)) {
fd1dff4b 4097 ioh->fd_read(ioh->opaque);
7c9d8e07 4098 }
6ab43fdc 4099 if (!ioh->deleted && ioh->fd_write && FD_ISSET(ioh->fd, &wfds)) {
fd1dff4b 4100 ioh->fd_write(ioh->opaque);
c4b1fcc0 4101 }
b4608c04 4102 }
cafffd40
TS		 4103
4104 /* remove deleted IO handlers */
4105 pioh = &first_io_handler;
4106 while (*pioh) {
4107 ioh = *pioh;
4108 if (ioh->deleted) {
4109 *pioh = ioh->next;
4110 qemu_free(ioh);
5fafdf24 4111 } else
cafffd40
TS		 4112 pioh = &ioh->next;
4113 }
fd1dff4b 4114 }
d918f23e
JK		 4115
4116 slirp_select_poll(&rfds, &wfds, &xfds, (ret < 0));
b4608c04 4117
50317c7f
AL		 4118 /* rearm timer, if not periodic */
4119 if (alarm_timer->flags & ALARM_FLAG_EXPIRED) {
4120 alarm_timer->flags &= ~ALARM_FLAG_EXPIRED;
4121 qemu_rearm_alarm_timer(alarm_timer);
4122 }
4123
357c692c 4124 /* vm time timers */
d6dc3d42
AL		 4125 if (vm_running) {
4126 if (!cur_cpu || likely(!(cur_cpu->singlestep_enabled & SSTEP_NOTIMER)))
4127 qemu_run_timers(&active_timers[QEMU_TIMER_VIRTUAL],
4128 qemu_get_clock(vm_clock));
4129 }
357c692c
AL		 4130
4131 /* real time timers */
4132 qemu_run_timers(&active_timers[QEMU_TIMER_REALTIME],
4133 qemu_get_clock(rt_clock));
4134
423f0742
PB		 4135 /* Check bottom-halves last in case any of the earlier events triggered
4136 them. */
4137 qemu_bh_poll();
3b46e624 4138
5905b2e5
FB		 4139}
4140
43b96858 4141static int qemu_cpu_exec(CPUState *env)
5905b2e5 4142{
43b96858 4143 int ret;
89bfc105
FB		 4144#ifdef CONFIG_PROFILER
4145 int64_t ti;
4146#endif
5905b2e5 4147
89bfc105 4148#ifdef CONFIG_PROFILER
43b96858 4149 ti = profile_getclock();
89bfc105 4150#endif
43b96858
AL		 4151 if (use_icount) {
4152 int64_t count;
4153 int decr;
4154 qemu_icount -= (env->icount_decr.u16.low + env->icount_extra);
4155 env->icount_decr.u16.low = 0;
4156 env->icount_extra = 0;
4157 count = qemu_next_deadline();
4158 count = (count + (1 << icount_time_shift) - 1)
4159 >> icount_time_shift;
4160 qemu_icount += count;
4161 decr = (count > 0xffff) ? 0xffff : count;
4162 count -= decr;
4163 env->icount_decr.u16.low = decr;
4164 env->icount_extra = count;
4165 }
4166 ret = cpu_exec(env);
89bfc105 4167#ifdef CONFIG_PROFILER
43b96858 4168 qemu_time += profile_getclock() - ti;
89bfc105 4169#endif
43b96858
AL		 4170 if (use_icount) {
4171 /* Fold pending instructions back into the
4172 instruction counter, and clear the interrupt flag. */
4173 qemu_icount -= (env->icount_decr.u16.low
4174 + env->icount_extra);
4175 env->icount_decr.u32 = 0;
4176 env->icount_extra = 0;
4177 }
4178 return ret;
4179}
4180
e6e35b1e
AL		 4181static void tcg_cpu_exec(void)
4182{
d6dc3d42 4183 int ret = 0;
e6e35b1e
AL		 4184
4185 if (next_cpu == NULL)
4186 next_cpu = first_cpu;
4187 for (; next_cpu != NULL; next_cpu = next_cpu->next_cpu) {
4188 CPUState *env = cur_cpu = next_cpu;
4189
4190 if (!vm_running)
4191 break;
4192 if (timer_alarm_pending) {
4193 timer_alarm_pending = 0;
4194 break;
4195 }
d6dc3d42
AL		 4196 if (cpu_can_run(env))
4197 ret = qemu_cpu_exec(env);
e6e35b1e
AL		 4198 if (ret == EXCP_DEBUG) {
4199 gdb_set_stop_cpu(env);
4200 debug_requested = 1;
4201 break;
4202 }
4203 }
4204}
4205
43b96858
AL		 4206static int cpu_has_work(CPUState *env)
4207{
d6dc3d42
AL		 4208 if (env->stop)
4209 return 1;
4210 if (env->stopped)
4211 return 0;
43b96858
AL		 4212 if (!env->halted)
4213 return 1;
4214 if (qemu_cpu_has_work(env))
4215 return 1;
4216 return 0;
4217}
4218
4219static int tcg_has_work(void)
4220{
4221 CPUState *env;
4222
4223 for (env = first_cpu; env != NULL; env = env->next_cpu)
4224 if (cpu_has_work(env))
4225 return 1;
4226 return 0;
4227}
4228
4229static int qemu_calculate_timeout(void)
4230{
b319820d 4231#ifndef CONFIG_IOTHREAD
43b96858
AL		 4232 int timeout;
4233
4234 if (!vm_running)
4235 timeout = 5000;
4236 else if (tcg_has_work())
4237 timeout = 0;
4238 else if (!use_icount)
4239 timeout = 5000;
4240 else {
4241 /* XXX: use timeout computed from timers */
4242 int64_t add;
4243 int64_t delta;
4244 /* Advance virtual time to the next event. */
4245 if (use_icount == 1) {
4246 /* When not using an adaptive execution frequency
4247 we tend to get badly out of sync with real time,
4248 so just delay for a reasonable amount of time. */
4249 delta = 0;
4250 } else {
4251 delta = cpu_get_icount() - cpu_get_clock();
4252 }
4253 if (delta > 0) {
4254 /* If virtual time is ahead of real time then just
4255 wait for IO. */
4256 timeout = (delta / 1000000) + 1;
4257 } else {
4258 /* Wait for either IO to occur or the next
4259 timer event. */
4260 add = qemu_next_deadline();
4261 /* We advance the timer before checking for IO.
4262 Limit the amount we advance so that early IO
4263 activity won't get the guest too far ahead. */
4264 if (add > 10000000)
4265 add = 10000000;
4266 delta += add;
4267 add = (add + (1 << icount_time_shift) - 1)
4268 >> icount_time_shift;
4269 qemu_icount += add;
4270 timeout = delta / 1000000;
4271 if (timeout < 0)
4272 timeout = 0;
4273 }
4274 }
4275
4276 return timeout;
b319820d
LC		 4277#else /* CONFIG_IOTHREAD */
4278 return 1000;
4279#endif
43b96858
AL		 4280}
4281
4282static int vm_can_run(void)
4283{
4284 if (powerdown_requested)
4285 return 0;
4286 if (reset_requested)
4287 return 0;
4288 if (shutdown_requested)
4289 return 0;
e568902a
AL		 4290 if (debug_requested)
4291 return 0;
43b96858
AL		 4292 return 1;
4293}
4294
d9c32310
BS		 4295qemu_irq qemu_system_powerdown;
4296
43b96858
AL		 4297static void main_loop(void)
4298{
6e29f5da 4299 int r;
e6e35b1e 4300
d6dc3d42
AL		 4301#ifdef CONFIG_IOTHREAD
4302 qemu_system_ready = 1;
4303 qemu_cond_broadcast(&qemu_system_cond);
4304#endif
4305
6e29f5da 4306 for (;;) {
43b96858 4307 do {
e6e35b1e
AL		 4308#ifdef CONFIG_PROFILER
4309 int64_t ti;
4310#endif
d6dc3d42 4311#ifndef CONFIG_IOTHREAD
e6e35b1e 4312 tcg_cpu_exec();
d6dc3d42 4313#endif
89bfc105 4314#ifdef CONFIG_PROFILER
43b96858 4315 ti = profile_getclock();
89bfc105 4316#endif
43b96858 4317 main_loop_wait(qemu_calculate_timeout());
89bfc105 4318#ifdef CONFIG_PROFILER
43b96858 4319 dev_time += profile_getclock() - ti;
89bfc105 4320#endif
e568902a 4321 } while (vm_can_run());
43b96858 4322
e568902a
AL		 4323 if (qemu_debug_requested())
4324 vm_stop(EXCP_DEBUG);
43b96858
AL		 4325 if (qemu_shutdown_requested()) {
4326 if (no_shutdown) {
4327 vm_stop(0);
4328 no_shutdown = 0;
4329 } else
4330 break;
4331 }
d6dc3d42
AL		 4332 if (qemu_reset_requested()) {
4333 pause_all_vcpus();
43b96858 4334 qemu_system_reset();
d6dc3d42
AL		 4335 resume_all_vcpus();
4336 }
d9c32310
BS		 4337 if (qemu_powerdown_requested()) {
4338 qemu_irq_raise(qemu_system_powerdown);
4339 }
6e29f5da
AL		 4340 if ((r = qemu_vmstop_requested()))
4341 vm_stop(r);
b4608c04 4342 }
d6dc3d42 4343 pause_all_vcpus();
b4608c04
FB		 4344}
4345
9bd7e6d9
PB		 4346static void version(void)
4347{
4a19f1ec 4348 printf("QEMU PC emulator version " QEMU_VERSION QEMU_PKGVERSION ", Copyright (c) 2003-2008 Fabrice Bellard\n");
9bd7e6d9
PB		 4349}
4350
15f82208 4351static void help(int exitcode)
0824d6fc 4352{
9bd7e6d9
PB		 4353 version();
4354 printf("usage: %s [options] [disk_image]\n"
0824d6fc 4355 "\n"
a20dd508 4356 "'disk_image' is a raw hard image image for IDE hard disk 0\n"
fc01f7e7 4357 "\n"
5824d651
BS		 4358#define DEF(option, opt_arg, opt_enum, opt_help) \
4359 opt_help
4360#define DEFHEADING(text) stringify(text) "\n"
4361#include "qemu-options.h"
4362#undef DEF
4363#undef DEFHEADING
4364#undef GEN_DOCS
0824d6fc 4365 "\n"
82c643ff 4366 "During emulation, the following keys are useful:\n"
032a8c9e
FB		 4367 "ctrl-alt-f toggle full screen\n"
4368 "ctrl-alt-n switch to virtual console 'n'\n"
4369 "ctrl-alt toggle mouse and keyboard grab\n"
82c643ff
FB		 4370 "\n"
4371 "When using -nographic, press 'ctrl-a h' to get some help.\n"
4372 ,
0db63474 4373 "qemu",
a00bad7e 4374 DEFAULT_RAM_SIZE,
7c9d8e07 4375#ifndef _WIN32
a00bad7e 4376 DEFAULT_NETWORK_SCRIPT,
b46a8906 4377 DEFAULT_NETWORK_DOWN_SCRIPT,
7c9d8e07 4378#endif
6e44ba7f 4379 DEFAULT_GDBSTUB_PORT,
bce61846 4380 "/tmp/qemu.log");
15f82208 4381 exit(exitcode);
0824d6fc
FB		 4382}
4383
cd6f1169
FB		 4384#define HAS_ARG 0x0001
4385
4386enum {
5824d651
BS		 4387#define DEF(option, opt_arg, opt_enum, opt_help) \
4388 opt_enum,
4389#define DEFHEADING(text)
4390#include "qemu-options.h"
4391#undef DEF
4392#undef DEFHEADING
4393#undef GEN_DOCS
cd6f1169
FB		 4394};
4395
4396typedef struct QEMUOption {
4397 const char *name;
4398 int flags;
4399 int index;
4400} QEMUOption;
4401
dbed7e40 4402static const QEMUOption qemu_options[] = {
cd6f1169 4403 { "h", 0, QEMU_OPTION_h },
5824d651
BS		 4404#define DEF(option, opt_arg, opt_enum, opt_help) \
4405 { option, opt_arg, opt_enum },
4406#define DEFHEADING(text)
4407#include "qemu-options.h"
4408#undef DEF
4409#undef DEFHEADING
4410#undef GEN_DOCS
cd6f1169 4411 { NULL },
fc01f7e7
FB		 4412};
4413
1d14ffa9 4414#ifdef HAS_AUDIO
6a36d84e 4415struct soundhw soundhw[] = {
b00052e4 4416#ifdef HAS_AUDIO_CHOICE
4ce7ff6e 4417#if defined(TARGET_I386) || defined(TARGET_MIPS)
fd06c375
FB		 4418 {
4419 "pcspk",
4420 "PC speaker",
4421 0,
4422 1,
4423 { .init_isa = pcspk_audio_init }
4424 },
4425#endif
4c9b53e3 4426
4427#ifdef CONFIG_SB16
6a36d84e
FB		 4428 {
4429 "sb16",
4430 "Creative Sound Blaster 16",
4431 0,
4432 1,
4433 { .init_isa = SB16_init }
4434 },
4c9b53e3 4435#endif
6a36d84e 4436
cc53d26d 4437#ifdef CONFIG_CS4231A
4438 {
4439 "cs4231a",
4440 "CS4231A",
4441 0,
4442 1,
4443 { .init_isa = cs4231a_init }
4444 },
4445#endif
4446
1d14ffa9 4447#ifdef CONFIG_ADLIB
6a36d84e
FB		 4448 {
4449 "adlib",
1d14ffa9 4450#ifdef HAS_YMF262
6a36d84e 4451 "Yamaha YMF262 (OPL3)",
1d14ffa9 4452#else
6a36d84e 4453 "Yamaha YM3812 (OPL2)",
1d14ffa9 4454#endif
6a36d84e
FB		 4455 0,
4456 1,
4457 { .init_isa = Adlib_init }
4458 },
1d14ffa9 4459#endif
6a36d84e 4460
1d14ffa9 4461#ifdef CONFIG_GUS
6a36d84e
FB		 4462 {
4463 "gus",
4464 "Gravis Ultrasound GF1",
4465 0,
4466 1,
4467 { .init_isa = GUS_init }
4468 },
1d14ffa9 4469#endif
6a36d84e 4470
4c9b53e3 4471#ifdef CONFIG_AC97
e5c9a13e
AZ		 4472 {
4473 "ac97",
4474 "Intel 82801AA AC97 Audio",
4475 0,
4476 0,
4477 { .init_pci = ac97_init }
4478 },
4c9b53e3 4479#endif
e5c9a13e 4480
4c9b53e3 4481#ifdef CONFIG_ES1370
6a36d84e
FB		 4482 {
4483 "es1370",
4484 "ENSONIQ AudioPCI ES1370",
4485 0,
4486 0,
4487 { .init_pci = es1370_init }
4488 },
b00052e4 4489#endif
6a36d84e 4490
4c9b53e3 4491#endif /* HAS_AUDIO_CHOICE */
4492
6a36d84e
FB		 4493 { NULL, NULL, 0, 0, { NULL } }
4494};
4495
4496static void select_soundhw (const char *optarg)
4497{
4498 struct soundhw *c;
4499
4500 if (*optarg == '?') {
4501 show_valid_cards:
4502
4503 printf ("Valid sound card names (comma separated):\n");
4504 for (c = soundhw; c->name; ++c) {
4505 printf ("%-11s %s\n", c->name, c->descr);
4506 }
4507 printf ("\n-soundhw all will enable all of the above\n");
1d14ffa9
FB		 4508 exit (*optarg != '?');
4509 }
4510 else {
6a36d84e 4511 size_t l;
1d14ffa9
FB		 4512 const char *p;
4513 char *e;
4514 int bad_card = 0;
4515
6a36d84e
FB		 4516 if (!strcmp (optarg, "all")) {
4517 for (c = soundhw; c->name; ++c) {
4518 c->enabled = 1;
4519 }
4520 return;
4521 }
1d14ffa9 4522
6a36d84e 4523 p = optarg;
1d14ffa9
FB		 4524 while (*p) {
4525 e = strchr (p, ',');
4526 l = !e ? strlen (p) : (size_t) (e - p);
6a36d84e
FB		 4527
4528 for (c = soundhw; c->name; ++c) {
4529 if (!strncmp (c->name, p, l)) {
4530 c->enabled = 1;
1d14ffa9
FB		 4531 break;
4532 }
4533 }
6a36d84e
FB		 4534
4535 if (!c->name) {
1d14ffa9
FB		 4536 if (l > 80) {
4537 fprintf (stderr,
4538 "Unknown sound card name (too big to show)\n");
4539 }
4540 else {
4541 fprintf (stderr, "Unknown sound card name `%.*s'\n",
4542 (int) l, p);
4543 }
4544 bad_card = 1;
4545 }
4546 p += l + (e != NULL);
4547 }
4548
4549 if (bad_card)
4550 goto show_valid_cards;
4551 }
4552}
4553#endif
4554
3893c124 4555static void select_vgahw (const char *p)
4556{
4557 const char *opts;
4558
86176759 4559 vga_interface_type = VGA_NONE;
3893c124 4560 if (strstart(p, "std", &opts)) {
86176759 4561 vga_interface_type = VGA_STD;
3893c124 4562 } else if (strstart(p, "cirrus", &opts)) {
86176759 4563 vga_interface_type = VGA_CIRRUS;
3893c124 4564 } else if (strstart(p, "vmware", &opts)) {
86176759 4565 vga_interface_type = VGA_VMWARE;
94909d9f 4566 } else if (strstart(p, "xenfb", &opts)) {
86176759 4567 vga_interface_type = VGA_XENFB;
28b85ed8 4568 } else if (!strstart(p, "none", &opts)) {
3893c124 4569 invalid_vga:
4570 fprintf(stderr, "Unknown vga type: %s\n", p);
4571 exit(1);
4572 }
cb5a7aa8 4573 while (*opts) {
4574 const char *nextopt;
4575
4576 if (strstart(opts, ",retrace=", &nextopt)) {
4577 opts = nextopt;
4578 if (strstart(opts, "dumb", &nextopt))
4579 vga_retrace_method = VGA_RETRACE_DUMB;
4580 else if (strstart(opts, "precise", &nextopt))
4581 vga_retrace_method = VGA_RETRACE_PRECISE;
4582 else goto invalid_vga;
4583 } else goto invalid_vga;
4584 opts = nextopt;
4585 }
3893c124 4586}
4587
7d4c3d53
MA		 4588#ifdef TARGET_I386
4589static int balloon_parse(const char *arg)
4590{
382f0743 4591 QemuOpts *opts;
7d4c3d53 4592
382f0743
GH		 4593 if (strcmp(arg, "none") == 0) {
4594 return 0;
4595 }
4596
4597 if (!strncmp(arg, "virtio", 6)) {
4598 if (arg[6] == ',') {
4599 /* have params -> parse them */
4600 opts = qemu_opts_parse(&qemu_device_opts, arg+7, NULL);
4601 if (!opts)
4602 return -1;
4603 } else {
4604 /* create empty opts */
4605 opts = qemu_opts_create(&qemu_device_opts, NULL, 0);
7d4c3d53 4606 }
382f0743
GH		 4607 qemu_opt_set(opts, "driver", "virtio-balloon-pci");
4608 return 0;
7d4c3d53 4609 }
382f0743
GH		 4610
4611 return -1;
7d4c3d53
MA		 4612}
4613#endif
4614
3587d7e6
FB		 4615#ifdef _WIN32
4616static BOOL WINAPI qemu_ctrl_handler(DWORD type)
4617{
4618 exit(STATUS_CONTROL_C_EXIT);
4619 return TRUE;
4620}
4621#endif
4622
c4be29ff 4623int qemu_uuid_parse(const char *str, uint8_t *uuid)
8fcb1b90
BS		 4624{
4625 int ret;
4626
4627 if(strlen(str) != 36)
4628 return -1;
4629
4630 ret = sscanf(str, UUID_FMT, &uuid[0], &uuid[1], &uuid[2], &uuid[3],
4631 &uuid[4], &uuid[5], &uuid[6], &uuid[7], &uuid[8], &uuid[9],
4632 &uuid[10], &uuid[11], &uuid[12], &uuid[13], &uuid[14], &uuid[15]);
4633
4634 if(ret != 16)
4635 return -1;
4636
b6f6e3d3
AL		 4637#ifdef TARGET_I386
4638 smbios_add_field(1, offsetof(struct smbios_type_1, uuid), 16, uuid);
4639#endif
4640
8fcb1b90
BS		 4641 return 0;
4642}
4643
7c9d8e07 4644#define MAX_NET_CLIENTS 32
c20709aa 4645
5b08fc10
AL		 4646#ifndef _WIN32
4647
4648static void termsig_handler(int signal)
4649{
4650 qemu_system_shutdown_request();
4651}
4652
7c3370d4
JK		 4653static void sigchld_handler(int signal)
4654{
4655 waitpid(-1, NULL, WNOHANG);
4656}
4657
4658static void sighandler_setup(void)
5b08fc10
AL		 4659{
4660 struct sigaction act;
4661
4662 memset(&act, 0, sizeof(act));
4663 act.sa_handler = termsig_handler;
4664 sigaction(SIGINT, &act, NULL);
4665 sigaction(SIGHUP, &act, NULL);
4666 sigaction(SIGTERM, &act, NULL);
7c3370d4
JK		 4667
4668 act.sa_handler = sigchld_handler;
4669 act.sa_flags = SA_NOCLDSTOP;
4670 sigaction(SIGCHLD, &act, NULL);
5b08fc10
AL		 4671}
4672
4673#endif
4674
5cea8590
PB		 4675#ifdef _WIN32
4676/* Look for support files in the same directory as the executable. */
4677static char *find_datadir(const char *argv0)
4678{
4679 char *p;
4680 char buf[MAX_PATH];
4681 DWORD len;
4682
4683 len = GetModuleFileName(NULL, buf, sizeof(buf) - 1);
4684 if (len == 0) {
c5947808 4685 return NULL;
5cea8590
PB		 4686 }
4687
4688 buf[len] = 0;
4689 p = buf + len - 1;
4690 while (p != buf && *p != '\\')
4691 p--;
4692 *p = 0;
4693 if (access(buf, R_OK) == 0) {
4694 return qemu_strdup(buf);
4695 }
4696 return NULL;
4697}
4698#else /* !_WIN32 */
4699
4700/* Find a likely location for support files using the location of the binary.
4701 For installed binaries this will be "$bindir/../share/qemu". When
4702 running from the build tree this will be "$bindir/../pc-bios". */
4703#define SHARE_SUFFIX "/share/qemu"
4704#define BUILD_SUFFIX "/pc-bios"
4705static char *find_datadir(const char *argv0)
4706{
4707 char *dir;
4708 char *p = NULL;
4709 char *res;
4710#ifdef PATH_MAX
4711 char buf[PATH_MAX];
4712#endif
3a41759d 4713 size_t max_len;
5cea8590
PB		 4714
4715#if defined(__linux__)
4716 {
4717 int len;
4718 len = readlink("/proc/self/exe", buf, sizeof(buf) - 1);
4719 if (len > 0) {
4720 buf[len] = 0;
4721 p = buf;
4722 }
4723 }
4724#elif defined(__FreeBSD__)
4725 {
4726 int len;
4727 len = readlink("/proc/curproc/file", buf, sizeof(buf) - 1);
4728 if (len > 0) {
4729 buf[len] = 0;
4730 p = buf;
4731 }
4732 }
4733#endif
4734 /* If we don't have any way of figuring out the actual executable
4735 location then try argv[0]. */
4736 if (!p) {
4737#ifdef PATH_MAX
4738 p = buf;
4739#endif
4740 p = realpath(argv0, p);
4741 if (!p) {
4742 return NULL;
4743 }
4744 }
4745 dir = dirname(p);
4746 dir = dirname(dir);
4747
3a41759d
BS		 4748 max_len = strlen(dir) +
4749 MAX(strlen(SHARE_SUFFIX), strlen(BUILD_SUFFIX)) + 1;
4750 res = qemu_mallocz(max_len);
4751 snprintf(res, max_len, "%s%s", dir, SHARE_SUFFIX);
5cea8590 4752 if (access(res, R_OK)) {
3a41759d 4753 snprintf(res, max_len, "%s%s", dir, BUILD_SUFFIX);
5cea8590
PB		 4754 if (access(res, R_OK)) {
4755 qemu_free(res);
4756 res = NULL;
4757 }
4758 }
4759#ifndef PATH_MAX
4760 free(p);
4761#endif
4762 return res;
4763}
4764#undef SHARE_SUFFIX
4765#undef BUILD_SUFFIX
4766#endif
4767
4768char *qemu_find_file(int type, const char *name)
4769{
4770 int len;
4771 const char *subdir;
4772 char *buf;
4773
4774 /* If name contains path separators then try it as a straight path. */
4775 if ((strchr(name, '/') || strchr(name, '\\'))
4776 && access(name, R_OK) == 0) {
4777 return strdup(name);
4778 }
4779 switch (type) {
4780 case QEMU_FILE_TYPE_BIOS:
4781 subdir = "";
4782 break;
4783 case QEMU_FILE_TYPE_KEYMAP:
4784 subdir = "keymaps/";
4785 break;
4786 default:
4787 abort();
4788 }
4789 len = strlen(data_dir) + strlen(name) + strlen(subdir) + 2;
4790 buf = qemu_mallocz(len);
3a41759d 4791 snprintf(buf, len, "%s/%s%s", data_dir, subdir, name);
5cea8590
PB		 4792 if (access(buf, R_OK)) {
4793 qemu_free(buf);
4794 return NULL;
4795 }
4796 return buf;
4797}
4798
f31d07d1
GH		 4799static int device_init_func(QemuOpts *opts, void *opaque)
4800{
4801 DeviceState *dev;
4802
4803 dev = qdev_device_add(opts);
4804 if (!dev)
4805 return -1;
4806 return 0;
4807}
4808
bd3c948d
GH		 4809struct device_config {
4810 enum {
bd3c948d
GH		 4811 DEV_USB, /* -usbdevice */
4812 DEV_BT, /* -bt */
4813 } type;
4814 const char *cmdline;
4815 TAILQ_ENTRY(device_config) next;
4816};
4817TAILQ_HEAD(, device_config) device_configs = TAILQ_HEAD_INITIALIZER(device_configs);
4818
4819static void add_device_config(int type, const char *cmdline)
4820{
4821 struct device_config *conf;
4822
4823 conf = qemu_mallocz(sizeof(*conf));
4824 conf->type = type;
4825 conf->cmdline = cmdline;
4826 TAILQ_INSERT_TAIL(&device_configs, conf, next);
4827}
4828
4829static int foreach_device_config(int type, int (*func)(const char *cmdline))
4830{
4831 struct device_config *conf;
4832 int rc;
4833
4834 TAILQ_FOREACH(conf, &device_configs, next) {
4835 if (conf->type != type)
4836 continue;
4837 rc = func(conf->cmdline);
4838 if (0 != rc)
4839 return rc;
4840 }
4841 return 0;
4842}
4843
902b3d5c 4844int main(int argc, char **argv, char **envp)
0824d6fc 4845{
59030a8c 4846 const char *gdbstub_dev = NULL;
28c5af54 4847 uint32_t boot_devices_bitmap = 0;
e4bcb14c 4848 int i;
28c5af54 4849 int snapshot, linux_boot, net_boot;
7f7f9873 4850 const char *initrd_filename;
a20dd508 4851 const char *kernel_filename, *kernel_cmdline;
ef3adf68 4852 char boot_devices[33] = "cad"; /* default to HD->floppy->CD-ROM */
3023f332 4853 DisplayState *ds;
7d957bd8 4854 DisplayChangeListener *dcl;
46d4767d 4855 int cyls, heads, secs, translation;
fd5f393a 4856 const char *net_clients[MAX_NET_CLIENTS];
7c9d8e07 4857 int nb_net_clients;
f31d07d1 4858 QemuOpts *hda_opts = NULL, *opts;
cd6f1169
FB		 4859 int optind;
4860 const char *r, *optarg;
ddd9bbd9
JK		 4861 CharDriverState *monitor_hds[MAX_MONITOR_DEVICES];
4862 const char *monitor_devices[MAX_MONITOR_DEVICES];
4863 int monitor_device_index;
fd5f393a 4864 const char *serial_devices[MAX_SERIAL_PORTS];
8d11df9e 4865 int serial_device_index;
fd5f393a 4866 const char *parallel_devices[MAX_PARALLEL_PORTS];
6508fe59 4867 int parallel_device_index;
9ede2fde
AL		 4868 const char *virtio_consoles[MAX_VIRTIO_CONSOLES];
4869 int virtio_console_index;
d63d307f 4870 const char *loadvm = NULL;
cc1daa40 4871 QEMUMachine *machine;
94fc95cd 4872 const char *cpu_model;
b9e82a59 4873#ifndef _WIN32
71e3ceb8 4874 int fds[2];
b9e82a59 4875#endif
26a5f13b 4876 int tb_size;
93815bc2 4877 const char *pid_file = NULL;
5bb7910a 4878 const char *incoming = NULL;
b9e82a59 4879#ifndef _WIN32
54042bcf
AL		 4880 int fd = 0;
4881 struct passwd *pwd = NULL;
0858532e
AL		 4882 const char *chroot_dir = NULL;
4883 const char *run_as = NULL;
b9e82a59 4884#endif
268a362c 4885 CPUState *env;
993fbfdb 4886 int show_vnc_port = 0;
0bd48850 4887
ac7531ec 4888 qemu_errors_to_file(stderr);
902b3d5c 4889 qemu_cache_utils_init(envp);
4890
0bd48850 4891 LIST_INIT (&vm_change_state_head);
be995c27
FB		 4892#ifndef _WIN32
4893 {
4894 struct sigaction act;
4895 sigfillset(&act.sa_mask);
4896 act.sa_flags = 0;
4897 act.sa_handler = SIG_IGN;
4898 sigaction(SIGPIPE, &act, NULL);
4899 }
3587d7e6
FB		 4900#else
4901 SetConsoleCtrlHandler(qemu_ctrl_handler, TRUE);
a8e5ac33
FB		 4902 /* Note: cpu_interrupt() is currently not SMP safe, so we force
4903 QEMU to run on a single CPU */
4904 {
4905 HANDLE h;
4906 DWORD mask, smask;
4907 int i;
4908 h = GetCurrentProcess();
4909 if (GetProcessAffinityMask(h, &mask, &smask)) {
4910 for(i = 0; i < 32; i++) {
4911 if (mask & (1 << i))
4912 break;
4913 }
4914 if (i != 32) {
4915 mask = 1 << i;
4916 SetProcessAffinityMask(h, mask);
4917 }
4918 }
4919 }
67b915a5 4920#endif
be995c27 4921
f80f9ec9 4922 module_call_init(MODULE_INIT_MACHINE);
0c257437 4923 machine = find_default_machine();
94fc95cd 4924 cpu_model = NULL;
fc01f7e7 4925 initrd_filename = NULL;
4fc5d071 4926 ram_size = 0;
33e3963e 4927 snapshot = 0;
a20dd508
FB		 4928 kernel_filename = NULL;
4929 kernel_cmdline = "";
c4b1fcc0 4930 cyls = heads = secs = 0;
46d4767d 4931 translation = BIOS_ATA_TRANSLATION_AUTO;
c4b1fcc0 4932
c75a823c 4933 serial_devices[0] = "vc:80Cx24C";
8d11df9e 4934 for(i = 1; i < MAX_SERIAL_PORTS; i++)
fd5f393a 4935 serial_devices[i] = NULL;
8d11df9e 4936 serial_device_index = 0;
3b46e624 4937
8290edda 4938 parallel_devices[0] = "vc:80Cx24C";
6508fe59 4939 for(i = 1; i < MAX_PARALLEL_PORTS; i++)
fd5f393a 4940 parallel_devices[i] = NULL;
6508fe59 4941 parallel_device_index = 0;
3b46e624 4942
1b8fc811 4943 for(i = 0; i < MAX_VIRTIO_CONSOLES; i++)
9ede2fde
AL		 4944 virtio_consoles[i] = NULL;
4945 virtio_console_index = 0;
4946
ddd9bbd9
JK		 4947 monitor_devices[0] = "vc:80Cx24C";
4948 for (i = 1; i < MAX_MONITOR_DEVICES; i++) {
4949 monitor_devices[i] = NULL;
4950 }
4951 monitor_device_index = 0;
4952
268a362c
AL		 4953 for (i = 0; i < MAX_NODES; i++) {
4954 node_mem[i] = 0;
4955 node_cpumask[i] = 0;
4956 }
4957
7c9d8e07 4958 nb_net_clients = 0;
268a362c 4959 nb_numa_nodes = 0;
7c9d8e07 4960 nb_nics = 0;
3b46e624 4961
26a5f13b 4962 tb_size = 0;
41bd639b
BS		 4963 autostart= 1;
4964
cd6f1169 4965 optind = 1;
0824d6fc 4966 for(;;) {
cd6f1169 4967 if (optind >= argc)
0824d6fc 4968 break;
cd6f1169
FB		 4969 r = argv[optind];
4970 if (r[0] != '-') {
9dfd7c7a 4971 hda_opts = drive_add(argv[optind++], HD_ALIAS, 0);
cd6f1169
FB		 4972 } else {
4973 const QEMUOption *popt;
4974
4975 optind++;
dff5efc8
PB		 4976 /* Treat --foo the same as -foo. */
4977 if (r[1] == '-')
4978 r++;
cd6f1169
FB		 4979 popt = qemu_options;
4980 for(;;) {
4981 if (!popt->name) {
5fafdf24 4982 fprintf(stderr, "%s: invalid option -- '%s'\n",
cd6f1169
FB		 4983 argv[0], r);
4984 exit(1);
4985 }
4986 if (!strcmp(popt->name, r + 1))
4987 break;
4988 popt++;
4989 }
4990 if (popt->flags & HAS_ARG) {
4991 if (optind >= argc) {
4992 fprintf(stderr, "%s: option '%s' requires an argument\n",
4993 argv[0], r);
4994 exit(1);
4995 }
4996 optarg = argv[optind++];
4997 } else {
4998 optarg = NULL;
4999 }
5000
5001 switch(popt->index) {
cc1daa40
FB		 5002 case QEMU_OPTION_M:
5003 machine = find_machine(optarg);
5004 if (!machine) {
5005 QEMUMachine *m;
5006 printf("Supported machines are:\n");
5007 for(m = first_machine; m != NULL; m = m->next) {
3f6599e6
MM		 5008 if (m->alias)
5009 printf("%-10s %s (alias of %s)\n",
5010 m->alias, m->desc, m->name);
cc1daa40 5011 printf("%-10s %s%s\n",
5fafdf24 5012 m->name, m->desc,
0c257437 5013 m->is_default ? " (default)" : "");
cc1daa40 5014 }
15f82208 5015 exit(*optarg != '?');
cc1daa40
FB		 5016 }
5017 break;
94fc95cd
JM		 5018 case QEMU_OPTION_cpu:
5019 /* hw initialization will check this */
15f82208 5020 if (*optarg == '?') {
c732abe2
JM		 5021/* XXX: implement xxx_cpu_list for targets that still miss it */
5022#if defined(cpu_list)
5023 cpu_list(stdout, &fprintf);
94fc95cd 5024#endif
15f82208 5025 exit(0);
94fc95cd
JM		 5026 } else {
5027 cpu_model = optarg;
5028 }
5029 break;
cd6f1169 5030 case QEMU_OPTION_initrd:
fc01f7e7
FB		 5031 initrd_filename = optarg;
5032 break;
cd6f1169 5033 case QEMU_OPTION_hda:
e4bcb14c 5034 if (cyls == 0)
9dfd7c7a 5035 hda_opts = drive_add(optarg, HD_ALIAS, 0);
e4bcb14c 5036 else
9dfd7c7a 5037 hda_opts = drive_add(optarg, HD_ALIAS
e4bcb14c 5038 ",cyls=%d,heads=%d,secs=%d%s",
609497ab 5039 0, cyls, heads, secs,
e4bcb14c
TS		 5040 translation == BIOS_ATA_TRANSLATION_LBA ?
5041 ",trans=lba" :
5042 translation == BIOS_ATA_TRANSLATION_NONE ?
5043 ",trans=none" : "");
5044 break;
cd6f1169 5045 case QEMU_OPTION_hdb:
cc1daa40
FB		 5046 case QEMU_OPTION_hdc:
5047 case QEMU_OPTION_hdd:
609497ab 5048 drive_add(optarg, HD_ALIAS, popt->index - QEMU_OPTION_hda);
fc01f7e7 5049 break;
e4bcb14c 5050 case QEMU_OPTION_drive:
609497ab 5051 drive_add(NULL, "%s", optarg);
e4bcb14c 5052 break;
d058fe03
GH		 5053 case QEMU_OPTION_set:
5054 if (qemu_set_option(optarg) != 0)
5055 exit(1);
5056 break;
3e3d5815 5057 case QEMU_OPTION_mtdblock:
609497ab 5058 drive_add(optarg, MTD_ALIAS);
3e3d5815 5059 break;
a1bb27b1 5060 case QEMU_OPTION_sd:
609497ab 5061 drive_add(optarg, SD_ALIAS);
a1bb27b1 5062 break;
86f55663 5063 case QEMU_OPTION_pflash:
609497ab 5064 drive_add(optarg, PFLASH_ALIAS);
86f55663 5065 break;
cd6f1169 5066 case QEMU_OPTION_snapshot:
33e3963e
FB		 5067 snapshot = 1;
5068 break;
cd6f1169 5069 case QEMU_OPTION_hdachs:
330d0414 5070 {
330d0414
FB		 5071 const char *p;
5072 p = optarg;
5073 cyls = strtol(p, (char **)&p, 0);
46d4767d
FB		 5074 if (cyls < 1 || cyls > 16383)
5075 goto chs_fail;
330d0414
FB		 5076 if (*p != ',')
5077 goto chs_fail;
5078 p++;
5079 heads = strtol(p, (char **)&p, 0);
46d4767d
FB		 5080 if (heads < 1 || heads > 16)
5081 goto chs_fail;
330d0414
FB		 5082 if (*p != ',')
5083 goto chs_fail;
5084 p++;
5085 secs = strtol(p, (char **)&p, 0);
46d4767d
FB		 5086 if (secs < 1 || secs > 63)
5087 goto chs_fail;
5088 if (*p == ',') {
5089 p++;
5090 if (!strcmp(p, "none"))
5091 translation = BIOS_ATA_TRANSLATION_NONE;
5092 else if (!strcmp(p, "lba"))
5093 translation = BIOS_ATA_TRANSLATION_LBA;
5094 else if (!strcmp(p, "auto"))
5095 translation = BIOS_ATA_TRANSLATION_AUTO;
5096 else
5097 goto chs_fail;
5098 } else if (*p != '\0') {
c4b1fcc0 5099 chs_fail:
46d4767d
FB		 5100 fprintf(stderr, "qemu: invalid physical CHS format\n");
5101 exit(1);
c4b1fcc0 5102 }
9dfd7c7a
GH		 5103 if (hda_opts != NULL) {
5104 char num[16];
5105 snprintf(num, sizeof(num), "%d", cyls);
5106 qemu_opt_set(hda_opts, "cyls", num);
5107 snprintf(num, sizeof(num), "%d", heads);
5108 qemu_opt_set(hda_opts, "heads", num);
5109 snprintf(num, sizeof(num), "%d", secs);
5110 qemu_opt_set(hda_opts, "secs", num);
5111 if (translation == BIOS_ATA_TRANSLATION_LBA)
5112 qemu_opt_set(hda_opts, "trans", "lba");
5113 if (translation == BIOS_ATA_TRANSLATION_NONE)
5114 qemu_opt_set(hda_opts, "trans", "none");
5115 }
330d0414
FB		 5116 }
5117 break;
268a362c
AL		 5118 case QEMU_OPTION_numa:
5119 if (nb_numa_nodes >= MAX_NODES) {
5120 fprintf(stderr, "qemu: too many NUMA nodes\n");
5121 exit(1);
5122 }
5123 numa_add(optarg);
5124 break;
cd6f1169 5125 case QEMU_OPTION_nographic:
993fbfdb 5126 display_type = DT_NOGRAPHIC;
a20dd508 5127 break;
4d3b6f6e
AZ		 5128#ifdef CONFIG_CURSES
5129 case QEMU_OPTION_curses:
993fbfdb 5130 display_type = DT_CURSES;
4d3b6f6e
AZ		 5131 break;
5132#endif
a171fe39
AZ		 5133 case QEMU_OPTION_portrait:
5134 graphic_rotate = 1;
5135 break;
cd6f1169 5136 case QEMU_OPTION_kernel:
a20dd508
FB		 5137 kernel_filename = optarg;
5138 break;
cd6f1169 5139 case QEMU_OPTION_append:
a20dd508 5140 kernel_cmdline = optarg;
313aa567 5141 break;
cd6f1169 5142 case QEMU_OPTION_cdrom:
609497ab 5143 drive_add(optarg, CDROM_ALIAS);
36b486bb 5144 break;
cd6f1169 5145 case QEMU_OPTION_boot:
28c5af54 5146 {
ef3adf68 5147 static const char * const params[] = {
95387491 5148 "order", "once", "menu", NULL
ef3adf68
JK		 5149 };
5150 char buf[sizeof(boot_devices)];
e0f084bf 5151 char *standard_boot_devices;
ef3adf68
JK		 5152 int legacy = 0;
5153
5154 if (!strchr(optarg, '=')) {
5155 legacy = 1;
5156 pstrcpy(buf, sizeof(buf), optarg);
5157 } else if (check_params(buf, sizeof(buf), params, optarg) < 0) {
5158 fprintf(stderr,
5159 "qemu: unknown boot parameter '%s' in '%s'\n",
5160 buf, optarg);
5161 exit(1);
5162 }
5163
5164 if (legacy ||
5165 get_param_value(buf, sizeof(buf), "order", optarg)) {
5166 boot_devices_bitmap = parse_bootdevices(buf);
5167 pstrcpy(boot_devices, sizeof(boot_devices), buf);
28c5af54 5168 }
e0f084bf
JK		 5169 if (!legacy) {
5170 if (get_param_value(buf, sizeof(buf),
5171 "once", optarg)) {
5172 boot_devices_bitmap |= parse_bootdevices(buf);
5173 standard_boot_devices = qemu_strdup(boot_devices);
5174 pstrcpy(boot_devices, sizeof(boot_devices), buf);
5175 qemu_register_reset(restore_boot_devices,
5176 standard_boot_devices);
5177 }
95387491
JK		 5178 if (get_param_value(buf, sizeof(buf),
5179 "menu", optarg)) {
5180 if (!strcmp(buf, "on")) {
5181 boot_menu = 1;
5182 } else if (!strcmp(buf, "off")) {
5183 boot_menu = 0;
5184 } else {
5185 fprintf(stderr,
5186 "qemu: invalid option value '%s'\n",
5187 buf);
5188 exit(1);
5189 }
5190 }
e0f084bf 5191 }
36b486bb
FB		 5192 }
5193 break;
cd6f1169 5194 case QEMU_OPTION_fda:
cd6f1169 5195 case QEMU_OPTION_fdb:
609497ab 5196 drive_add(optarg, FD_ALIAS, popt->index - QEMU_OPTION_fda);
c45886db 5197 break;
52ca8d6a
FB		 5198#ifdef TARGET_I386
5199 case QEMU_OPTION_no_fd_bootchk:
5200 fd_bootchk = 0;
5201 break;
5202#endif
7c9d8e07
FB		 5203 case QEMU_OPTION_net:
5204 if (nb_net_clients >= MAX_NET_CLIENTS) {
5205 fprintf(stderr, "qemu: too many network clients\n");
c4b1fcc0
FB		 5206 exit(1);
5207 }
fd5f393a 5208 net_clients[nb_net_clients] = optarg;
7c9d8e07 5209 nb_net_clients++;
702c651c 5210 break;
c7f74643
FB		 5211#ifdef CONFIG_SLIRP
5212 case QEMU_OPTION_tftp:
ad196a9d 5213 legacy_tftp_prefix = optarg;
9bf05444 5214 break;
47d5d01a 5215 case QEMU_OPTION_bootp:
ad196a9d 5216 legacy_bootp_filename = optarg;
47d5d01a 5217 break;
c94c8d64 5218#ifndef _WIN32
9d728e8c 5219 case QEMU_OPTION_smb:
ad196a9d 5220 net_slirp_smb(optarg);
9d728e8c 5221 break;
c94c8d64 5222#endif
9bf05444 5223 case QEMU_OPTION_redir:
f3546deb 5224 net_slirp_redir(optarg);
9bf05444 5225 break;
c7f74643 5226#endif
dc72ac14 5227 case QEMU_OPTION_bt:
bd3c948d 5228 add_device_config(DEV_BT, optarg);
dc72ac14 5229 break;
1d14ffa9 5230#ifdef HAS_AUDIO
1d14ffa9
FB		 5231 case QEMU_OPTION_audio_help:
5232 AUD_help ();
5233 exit (0);
5234 break;
5235 case QEMU_OPTION_soundhw:
5236 select_soundhw (optarg);
5237 break;
5238#endif
cd6f1169 5239 case QEMU_OPTION_h:
15f82208 5240 help(0);
cd6f1169 5241 break;
9bd7e6d9
PB		 5242 case QEMU_OPTION_version:
5243 version();
5244 exit(0);
5245 break;
00f82b8a
AJ		 5246 case QEMU_OPTION_m: {
5247 uint64_t value;
5248 char *ptr;
5249
5250 value = strtoul(optarg, &ptr, 10);
5251 switch (*ptr) {
5252 case 0: case 'M': case 'm':
5253 value <<= 20;
5254 break;
5255 case 'G': case 'g':
5256 value <<= 30;
5257 break;
5258 default:
5259 fprintf(stderr, "qemu: invalid ram size: %s\n", optarg);
cd6f1169
FB		 5260 exit(1);
5261 }
00f82b8a
AJ		 5262
5263 /* On 32-bit hosts, QEMU is limited by virtual address space */
4a1418e0 5264 if (value > (2047 << 20) && HOST_LONG_BITS == 32) {
00f82b8a
AJ		 5265 fprintf(stderr, "qemu: at most 2047 MB RAM can be simulated\n");
5266 exit(1);
5267 }
5268 if (value != (uint64_t)(ram_addr_t)value) {
5269 fprintf(stderr, "qemu: ram size too large\n");
5270 exit(1);
5271 }
5272 ram_size = value;
cd6f1169 5273 break;
00f82b8a 5274 }
cd6f1169
FB		 5275 case QEMU_OPTION_d:
5276 {
5277 int mask;
c7cd6a37 5278 const CPULogItem *item;
3b46e624 5279
cd6f1169
FB		 5280 mask = cpu_str_to_log_mask(optarg);
5281 if (!mask) {
5282 printf("Log items (comma separated):\n");
f193c797
FB		 5283 for(item = cpu_log_items; item->mask != 0; item++) {
5284 printf("%-10s %s\n", item->name, item->help);
5285 }
5286 exit(1);
cd6f1169
FB		 5287 }
5288 cpu_set_log(mask);
f193c797 5289 }
cd6f1169 5290 break;
cd6f1169 5291 case QEMU_OPTION_s:
59030a8c 5292 gdbstub_dev = "tcp::" DEFAULT_GDBSTUB_PORT;
cd6f1169 5293 break;
59030a8c
AL		 5294 case QEMU_OPTION_gdb:
5295 gdbstub_dev = optarg;
cd6f1169 5296 break;
cd6f1169 5297 case QEMU_OPTION_L:
5cea8590 5298 data_dir = optarg;
cd6f1169 5299 break;
1192dad8
JM		 5300 case QEMU_OPTION_bios:
5301 bios_name = optarg;
5302 break;
1b530a6d
AJ		 5303 case QEMU_OPTION_singlestep:
5304 singlestep = 1;
5305 break;
cd6f1169 5306 case QEMU_OPTION_S:
3c07f8e8 5307 autostart = 0;
cd6f1169 5308 break;
5824d651 5309#ifndef _WIN32
3d11d0eb
FB		 5310 case QEMU_OPTION_k:
5311 keyboard_layout = optarg;
5312 break;
5824d651 5313#endif
ee22c2f7
FB		 5314 case QEMU_OPTION_localtime:
5315 rtc_utc = 0;
5316 break;
3893c124 5317 case QEMU_OPTION_vga:
5318 select_vgahw (optarg);
1bfe856e 5319 break;
5824d651 5320#if defined(TARGET_PPC) || defined(TARGET_SPARC)
e9b137c2
FB		 5321 case QEMU_OPTION_g:
5322 {
5323 const char *p;
5324 int w, h, depth;
5325 p = optarg;
5326 w = strtol(p, (char **)&p, 10);
5327 if (w <= 0) {
5328 graphic_error:
5329 fprintf(stderr, "qemu: invalid resolution or depth\n");
5330 exit(1);
5331 }
5332 if (*p != 'x')
5333 goto graphic_error;
5334 p++;
5335 h = strtol(p, (char **)&p, 10);
5336 if (h <= 0)
5337 goto graphic_error;
5338 if (*p == 'x') {
5339 p++;
5340 depth = strtol(p, (char **)&p, 10);
5fafdf24 5341 if (depth != 8 && depth != 15 && depth != 16 &&
e9b137c2
FB		 5342 depth != 24 && depth != 32)
5343 goto graphic_error;
5344 } else if (*p == '\0') {
5345 depth = graphic_depth;
5346 } else {
5347 goto graphic_error;
5348 }
3b46e624 5349
e9b137c2
FB		 5350 graphic_width = w;
5351 graphic_height = h;
5352 graphic_depth = depth;
5353 }
5354 break;
5824d651 5355#endif
20d8a3ed
TS		 5356 case QEMU_OPTION_echr:
5357 {
5358 char *r;
5359 term_escape_char = strtol(optarg, &r, 0);
5360 if (r == optarg)
5361 printf("Bad argument to echr\n");
5362 break;
5363 }
82c643ff 5364 case QEMU_OPTION_monitor:
ddd9bbd9
JK		 5365 if (monitor_device_index >= MAX_MONITOR_DEVICES) {
5366 fprintf(stderr, "qemu: too many monitor devices\n");
5367 exit(1);
5368 }
5369 monitor_devices[monitor_device_index] = optarg;
5370 monitor_device_index++;
82c643ff
FB		 5371 break;
5372 case QEMU_OPTION_serial:
8d11df9e
FB		 5373 if (serial_device_index >= MAX_SERIAL_PORTS) {
5374 fprintf(stderr, "qemu: too many serial ports\n");
5375 exit(1);
5376 }
fd5f393a 5377 serial_devices[serial_device_index] = optarg;
8d11df9e 5378 serial_device_index++;
82c643ff 5379 break;
9dd986cc 5380 case QEMU_OPTION_watchdog:
09aaa160
MA		 5381 if (watchdog) {
5382 fprintf(stderr,
5383 "qemu: only one watchdog option may be given\n");
5384 return 1;
5385 }
5386 watchdog = optarg;
9dd986cc
RJ		 5387 break;
5388 case QEMU_OPTION_watchdog_action:
5389 if (select_watchdog_action(optarg) == -1) {
5390 fprintf(stderr, "Unknown -watchdog-action parameter\n");
5391 exit(1);
5392 }
5393 break;
51ecf136
AL		 5394 case QEMU_OPTION_virtiocon:
5395 if (virtio_console_index >= MAX_VIRTIO_CONSOLES) {
5396 fprintf(stderr, "qemu: too many virtio consoles\n");
5397 exit(1);
5398 }
5399 virtio_consoles[virtio_console_index] = optarg;
5400 virtio_console_index++;
5401 break;
6508fe59
FB		 5402 case QEMU_OPTION_parallel:
5403 if (parallel_device_index >= MAX_PARALLEL_PORTS) {
5404 fprintf(stderr, "qemu: too many parallel ports\n");
5405 exit(1);
5406 }
fd5f393a 5407 parallel_devices[parallel_device_index] = optarg;
6508fe59
FB		 5408 parallel_device_index++;
5409 break;
d63d307f
FB		 5410 case QEMU_OPTION_loadvm:
5411 loadvm = optarg;
5412 break;
5413 case QEMU_OPTION_full_screen:
5414 full_screen = 1;
5415 break;
667accab 5416#ifdef CONFIG_SDL
43523e93
TS		 5417 case QEMU_OPTION_no_frame:
5418 no_frame = 1;
5419 break;
3780e197
TS		 5420 case QEMU_OPTION_alt_grab:
5421 alt_grab = 1;
5422 break;
667accab
TS		 5423 case QEMU_OPTION_no_quit:
5424 no_quit = 1;
5425 break;
7d957bd8 5426 case QEMU_OPTION_sdl:
993fbfdb 5427 display_type = DT_SDL;
7d957bd8 5428 break;
667accab 5429#endif
f7cce898 5430 case QEMU_OPTION_pidfile:
93815bc2 5431 pid_file = optarg;
f7cce898 5432 break;
a09db21f
FB		 5433#ifdef TARGET_I386
5434 case QEMU_OPTION_win2k_hack:
5435 win2k_install_hack = 1;
5436 break;
73822ec8
AL		 5437 case QEMU_OPTION_rtc_td_hack:
5438 rtc_td_hack = 1;
5439 break;
8a92ea2f
AL		 5440 case QEMU_OPTION_acpitable:
5441 if(acpi_table_add(optarg) < 0) {
5442 fprintf(stderr, "Wrong acpi table provided\n");
5443 exit(1);
5444 }
5445 break;
b6f6e3d3
AL		 5446 case QEMU_OPTION_smbios:
5447 if(smbios_entry_add(optarg) < 0) {
5448 fprintf(stderr, "Wrong smbios provided\n");
5449 exit(1);
5450 }
5451 break;
a09db21f 5452#endif
7ba1e619
AL		 5453#ifdef CONFIG_KVM
5454 case QEMU_OPTION_enable_kvm:
5455 kvm_allowed = 1;
7ba1e619 5456 break;
d993e026 5457#endif
bb36d470
FB		 5458 case QEMU_OPTION_usb:
5459 usb_enabled = 1;
5460 break;
a594cfbf
FB		 5461 case QEMU_OPTION_usbdevice:
5462 usb_enabled = 1;
bd3c948d
GH		 5463 add_device_config(DEV_USB, optarg);
5464 break;
5465 case QEMU_OPTION_device:
f31d07d1
GH		 5466 opts = qemu_opts_parse(&qemu_device_opts, optarg, "driver");
5467 if (!opts) {
5468 fprintf(stderr, "parse error: %s\n", optarg);
5469 exit(1);
5470 }
a594cfbf 5471 break;
6a00d601 5472 case QEMU_OPTION_smp:
dc6b1c09 5473 smp_parse(optarg);
b2097003 5474 if (smp_cpus < 1) {
6a00d601
FB		 5475 fprintf(stderr, "Invalid number of CPUs\n");
5476 exit(1);
5477 }
6be68d7e
JS		 5478 if (max_cpus < smp_cpus) {
5479 fprintf(stderr, "maxcpus must be equal to or greater than "
5480 "smp\n");
5481 exit(1);
5482 }
5483 if (max_cpus > 255) {
5484 fprintf(stderr, "Unsupported number of maxcpus\n");
5485 exit(1);
5486 }
6a00d601 5487 break;
24236869 5488 case QEMU_OPTION_vnc:
993fbfdb 5489 display_type = DT_VNC;
73fc9742 5490 vnc_display = optarg;
24236869 5491 break;
5824d651 5492#ifdef TARGET_I386
6515b203
FB		 5493 case QEMU_OPTION_no_acpi:
5494 acpi_enabled = 0;
5495 break;
16b29ae1
AL		 5496 case QEMU_OPTION_no_hpet:
5497 no_hpet = 1;
5498 break;
7d4c3d53
MA		 5499 case QEMU_OPTION_balloon:
5500 if (balloon_parse(optarg) < 0) {
5501 fprintf(stderr, "Unknown -balloon argument %s\n", optarg);
5502 exit(1);
5503 }
df97b920 5504 break;
5824d651 5505#endif
d1beab82
FB		 5506 case QEMU_OPTION_no_reboot:
5507 no_reboot = 1;
5508 break;
b2f76161
AJ		 5509 case QEMU_OPTION_no_shutdown:
5510 no_shutdown = 1;
5511 break;
9467cd46
AZ		 5512 case QEMU_OPTION_show_cursor:
5513 cursor_hide = 0;
5514 break;
8fcb1b90
BS		 5515 case QEMU_OPTION_uuid:
5516 if(qemu_uuid_parse(optarg, qemu_uuid) < 0) {
5517 fprintf(stderr, "Fail to parse UUID string."
5518 " Wrong format.\n");
5519 exit(1);
5520 }
5521 break;
5824d651 5522#ifndef _WIN32
71e3ceb8
TS		 5523 case QEMU_OPTION_daemonize:
5524 daemonize = 1;
5525 break;
5824d651 5526#endif
9ae02555
TS		 5527 case QEMU_OPTION_option_rom:
5528 if (nb_option_roms >= MAX_OPTION_ROMS) {
5529 fprintf(stderr, "Too many option ROMs\n");
5530 exit(1);
5531 }
5532 option_rom[nb_option_roms] = optarg;
5533 nb_option_roms++;
5534 break;
5824d651 5535#if defined(TARGET_ARM) || defined(TARGET_M68K)
8e71621f
PB		 5536 case QEMU_OPTION_semihosting:
5537 semihosting_enabled = 1;
5538 break;
5824d651 5539#endif
c35734b2 5540 case QEMU_OPTION_name:
1889465a
AK		 5541 qemu_name = qemu_strdup(optarg);
5542 {
5543 char *p = strchr(qemu_name, ',');
5544 if (p != NULL) {
5545 *p++ = 0;
5546 if (strncmp(p, "process=", 8)) {
5547 fprintf(stderr, "Unknown subargument %s to -name", p);
5548 exit(1);
5549 }
5550 p += 8;
5551 set_proc_name(p);
5552 }
5553 }
c35734b2 5554 break;
95efd11c 5555#if defined(TARGET_SPARC) || defined(TARGET_PPC)
66508601
BS		 5556 case QEMU_OPTION_prom_env:
5557 if (nb_prom_envs >= MAX_PROM_ENVS) {
5558 fprintf(stderr, "Too many prom variables\n");
5559 exit(1);
5560 }
5561 prom_envs[nb_prom_envs] = optarg;
5562 nb_prom_envs++;
5563 break;
2b8f2d41
AZ		 5564#endif
5565#ifdef TARGET_ARM
5566 case QEMU_OPTION_old_param:
5567 old_param = 1;
05ebd537 5568 break;
66508601 5569#endif
f3dcfada
TS		 5570 case QEMU_OPTION_clock:
5571 configure_alarms(optarg);
5572 break;
7e0af5d0
FB		 5573 case QEMU_OPTION_startdate:
5574 {
5575 struct tm tm;
f6503059 5576 time_t rtc_start_date;
7e0af5d0 5577 if (!strcmp(optarg, "now")) {
f6503059 5578 rtc_date_offset = -1;
7e0af5d0
FB		 5579 } else {
5580 if (sscanf(optarg, "%d-%d-%dT%d:%d:%d",
5581 &tm.tm_year,
5582 &tm.tm_mon,
5583 &tm.tm_mday,
5584 &tm.tm_hour,
5585 &tm.tm_min,
5586 &tm.tm_sec) == 6) {
5587 /* OK */
5588 } else if (sscanf(optarg, "%d-%d-%d",
5589 &tm.tm_year,
5590 &tm.tm_mon,
5591 &tm.tm_mday) == 3) {
5592 tm.tm_hour = 0;
5593 tm.tm_min = 0;
5594 tm.tm_sec = 0;
5595 } else {
5596 goto date_fail;
5597 }
5598 tm.tm_year -= 1900;
5599 tm.tm_mon--;
3c6b2088 5600 rtc_start_date = mktimegm(&tm);
7e0af5d0
FB		 5601 if (rtc_start_date == -1) {
5602 date_fail:
5603 fprintf(stderr, "Invalid date format. Valid format are:\n"
5604 "'now' or '2006-06-17T16:01:21' or '2006-06-17'\n");
5605 exit(1);
5606 }
f6503059 5607 rtc_date_offset = time(NULL) - rtc_start_date;
7e0af5d0
FB		 5608 }
5609 }
5610 break;
26a5f13b
FB		 5611 case QEMU_OPTION_tb_size:
5612 tb_size = strtol(optarg, NULL, 0);
5613 if (tb_size < 0)
5614 tb_size = 0;
5615 break;
2e70f6ef
PB		 5616 case QEMU_OPTION_icount:
5617 use_icount = 1;
5618 if (strcmp(optarg, "auto") == 0) {
5619 icount_time_shift = -1;
5620 } else {
5621 icount_time_shift = strtol(optarg, NULL, 0);
5622 }
5623 break;
5bb7910a
AL		 5624 case QEMU_OPTION_incoming:
5625 incoming = optarg;
5626 break;
5824d651 5627#ifndef _WIN32
0858532e
AL		 5628 case QEMU_OPTION_chroot:
5629 chroot_dir = optarg;
5630 break;
5631 case QEMU_OPTION_runas:
5632 run_as = optarg;
5633 break;
e37630ca
AL		 5634#endif
5635#ifdef CONFIG_XEN
5636 case QEMU_OPTION_xen_domid:
5637 xen_domid = atoi(optarg);
5638 break;
5639 case QEMU_OPTION_xen_create:
5640 xen_mode = XEN_CREATE;
5641 break;
5642 case QEMU_OPTION_xen_attach:
5643 xen_mode = XEN_ATTACH;
5644 break;
5824d651 5645#endif
cd6f1169 5646 }
0824d6fc
FB		 5647 }
5648 }
330d0414 5649
5cea8590
PB		 5650 /* If no data_dir is specified then try to find it relative to the
5651 executable path. */
5652 if (!data_dir) {
5653 data_dir = find_datadir(argv[0]);
5654 }
5655 /* If all else fails use the install patch specified when building. */
5656 if (!data_dir) {
5657 data_dir = CONFIG_QEMU_SHAREDIR;
5658 }
5659
6be68d7e
JS		 5660 /*
5661 * Default to max_cpus = smp_cpus, in case the user doesn't
5662 * specify a max_cpus value.
5663 */
5664 if (!max_cpus)
5665 max_cpus = smp_cpus;
5666
3d878caa 5667 machine->max_cpus = machine->max_cpus ?: 1; /* Default to UP */
b2097003
AL		 5668 if (smp_cpus > machine->max_cpus) {
5669 fprintf(stderr, "Number of SMP cpus requested (%d), exceeds max cpus "
5670 "supported by machine `%s' (%d)\n", smp_cpus, machine->name,
5671 machine->max_cpus);
5672 exit(1);
5673 }
5674
993fbfdb 5675 if (display_type == DT_NOGRAPHIC) {
bc0129d9
AL		 5676 if (serial_device_index == 0)
5677 serial_devices[0] = "stdio";
5678 if (parallel_device_index == 0)
5679 parallel_devices[0] = "null";
ddd9bbd9
JK		 5680 if (strncmp(monitor_devices[0], "vc", 2) == 0) {
5681 monitor_devices[0] = "stdio";
5682 }
bc0129d9
AL		 5683 }
5684
71e3ceb8 5685#ifndef _WIN32
71e3ceb8
TS		 5686 if (daemonize) {
5687 pid_t pid;
5688
5689 if (pipe(fds) == -1)
5690 exit(1);
5691
5692 pid = fork();
5693 if (pid > 0) {
5694 uint8_t status;
5695 ssize_t len;
5696
5697 close(fds[1]);
5698
5699 again:
93815bc2
TS		 5700 len = read(fds[0], &status, 1);
5701 if (len == -1 && (errno == EINTR))
5702 goto again;
5703
5704 if (len != 1)
5705 exit(1);
5706 else if (status == 1) {
5707 fprintf(stderr, "Could not acquire pidfile\n");
5708 exit(1);
5709 } else
5710 exit(0);
71e3ceb8 5711 } else if (pid < 0)
93815bc2 5712 exit(1);
71e3ceb8
TS		 5713
5714 setsid();
5715
5716 pid = fork();
5717 if (pid > 0)
5718 exit(0);
5719 else if (pid < 0)
5720 exit(1);
5721
5722 umask(027);
71e3ceb8
TS		 5723
5724 signal(SIGTSTP, SIG_IGN);
5725 signal(SIGTTOU, SIG_IGN);
5726 signal(SIGTTIN, SIG_IGN);
5727 }
71e3ceb8 5728
aa26bb2d 5729 if (pid_file && qemu_create_pidfile(pid_file) != 0) {
93815bc2
TS		 5730 if (daemonize) {
5731 uint8_t status = 1;
5732 write(fds[1], &status, 1);
5733 } else
5734 fprintf(stderr, "Could not acquire pid file\n");
5735 exit(1);
5736 }
b9e82a59 5737#endif
93815bc2 5738
3fcf7b6b
AL		 5739 if (qemu_init_main_loop()) {
5740 fprintf(stderr, "qemu_init_main_loop failed\n");
5741 exit(1);
5742 }
a20dd508 5743 linux_boot = (kernel_filename != NULL);
6c41b272 5744
f8d39c01
TS		 5745 if (!linux_boot && *kernel_cmdline != '\0') {
5746 fprintf(stderr, "-append only allowed with -kernel option\n");
5747 exit(1);
5748 }
5749
5750 if (!linux_boot && initrd_filename != NULL) {
5751 fprintf(stderr, "-initrd only allowed with -kernel option\n");
5752 exit(1);
5753 }
5754
bf65f53f
FN		 5755#ifndef _WIN32
5756 /* Win32 doesn't support line-buffering and requires size >= 2 */
b118d61e 5757 setvbuf(stdout, NULL, _IOLBF, 0);
bf65f53f 5758#endif
3b46e624 5759
634fce96 5760 init_timers();
7183b4b4
AL		 5761 if (init_timer_alarm() < 0) {
5762 fprintf(stderr, "could not initialize alarm timer\n");
5763 exit(1);
5764 }
2e70f6ef
PB		 5765 if (use_icount && icount_time_shift < 0) {
5766 use_icount = 2;
5767 /* 125MIPS seems a reasonable initial guess at the guest speed.
5768 It will be corrected fairly quickly anyway. */
5769 icount_time_shift = 3;
5770 init_icount_adjust();
5771 }
634fce96 5772
fd1dff4b
FB		 5773#ifdef _WIN32
5774 socket_init();
5775#endif
5776
7c9d8e07
FB		 5777 /* init network clients */
5778 if (nb_net_clients == 0) {
5779 /* if no clients, we use a default config */
f441b28b
AL		 5780 net_clients[nb_net_clients++] = "nic";
5781#ifdef CONFIG_SLIRP
5782 net_clients[nb_net_clients++] = "user";
5783#endif
c20709aa
FB		 5784 }
5785
7c9d8e07 5786 for(i = 0;i < nb_net_clients; i++) {
9ad97e65 5787 if (net_client_parse(net_clients[i]) < 0)
7c9d8e07 5788 exit(1);
702c651c 5789 }
f1510b2c 5790
406c8df3
GC		 5791 net_boot = (boot_devices_bitmap >> ('n' - 'a')) & 0xF;
5792 net_set_boot_mask(net_boot);
5793
5794 net_client_check();
eec85c2a 5795
dc72ac14 5796 /* init the bluetooth world */
bd3c948d
GH		 5797 if (foreach_device_config(DEV_BT, bt_parse))
5798 exit(1);
dc72ac14 5799
0824d6fc 5800 /* init the memory */
94a6b54f
PB		 5801 if (ram_size == 0)
5802 ram_size = DEFAULT_RAM_SIZE * 1024 * 1024;
9ae02555 5803
26a5f13b
FB		 5804 /* init the dynamic translator */
5805 cpu_exec_init_all(tb_size * 1024 * 1024);
5806
5905b2e5 5807 bdrv_init();
c4b1fcc0 5808
e4bcb14c 5809 /* we always create the cdrom drive, even if no disk is there */
3b0ba927 5810 drive_add(NULL, CDROM_ALIAS);
c4b1fcc0 5811
9d413d1d 5812 /* we always create at least one floppy */
3b0ba927 5813 drive_add(NULL, FD_ALIAS, 0);
86f55663 5814
9d413d1d 5815 /* we always create one sd slot, even if no card is in it */
3b0ba927 5816 drive_add(NULL, SD_ALIAS);
9d413d1d 5817
e4bcb14c 5818 /* open the virtual block devices */
9dfd7c7a 5819 if (snapshot)
7282a033
GH		 5820 qemu_opts_foreach(&qemu_drive_opts, drive_enable_snapshot, NULL, 0);
5821 if (qemu_opts_foreach(&qemu_drive_opts, drive_init_func, machine, 1) != 0)
9dfd7c7a 5822 exit(1);
3e3d5815 5823
c88676f8 5824 register_savevm("timer", 0, 2, timer_save, timer_load, NULL);
475e4277 5825 register_savevm_live("ram", 0, 3, ram_save_live, NULL, ram_load, NULL);
8a7ddc38 5826
3023f332 5827 /* Maintain compatibility with multiple stdio monitors */
ddd9bbd9 5828 if (!strcmp(monitor_devices[0],"stdio")) {
3023f332
AL		 5829 for (i = 0; i < MAX_SERIAL_PORTS; i++) {
5830 const char *devname = serial_devices[i];
5831 if (devname && !strcmp(devname,"mon:stdio")) {
ddd9bbd9 5832 monitor_devices[0] = NULL;
3023f332
AL		 5833 break;
5834 } else if (devname && !strcmp(devname,"stdio")) {
ddd9bbd9 5835 monitor_devices[0] = NULL;
3023f332
AL		 5836 serial_devices[i] = "mon:stdio";
5837 break;
5838 }
5839 }
5840 }
5841
268a362c
AL		 5842 if (nb_numa_nodes > 0) {
5843 int i;
5844
5845 if (nb_numa_nodes > smp_cpus) {
5846 nb_numa_nodes = smp_cpus;
5847 }
5848
5849 /* If no memory size if given for any node, assume the default case
5850 * and distribute the available memory equally across all nodes
5851 */
5852 for (i = 0; i < nb_numa_nodes; i++) {
5853 if (node_mem[i] != 0)
5854 break;
5855 }
5856 if (i == nb_numa_nodes) {
5857 uint64_t usedmem = 0;
5858
5859 /* On Linux, the each node's border has to be 8MB aligned,
5860 * the final node gets the rest.
5861 */
5862 for (i = 0; i < nb_numa_nodes - 1; i++) {
5863 node_mem[i] = (ram_size / nb_numa_nodes) & ~((1 << 23UL) - 1);
5864 usedmem += node_mem[i];
5865 }
5866 node_mem[i] = ram_size - usedmem;
5867 }
5868
5869 for (i = 0; i < nb_numa_nodes; i++) {
5870 if (node_cpumask[i] != 0)
5871 break;
5872 }
5873 /* assigning the VCPUs round-robin is easier to implement, guest OSes
5874 * must cope with this anyway, because there are BIOSes out there in
5875 * real machines which also use this scheme.
5876 */
5877 if (i == nb_numa_nodes) {
5878 for (i = 0; i < smp_cpus; i++) {
5879 node_cpumask[i % nb_numa_nodes] |= 1 << i;
5880 }
5881 }
5882 }
5883
3023f332
AL		 5884 if (kvm_enabled()) {
5885 int ret;
5886
5887 ret = kvm_init(smp_cpus);
5888 if (ret < 0) {
5889 fprintf(stderr, "failed to initialize KVM\n");
5890 exit(1);
5891 }
5892 }
5893
ddd9bbd9
JK		 5894 for (i = 0; i < MAX_MONITOR_DEVICES; i++) {
5895 const char *devname = monitor_devices[i];
5896 if (devname && strcmp(devname, "none")) {
5897 char label[32];
5898 if (i == 0) {
5899 snprintf(label, sizeof(label), "monitor");
5900 } else {
5901 snprintf(label, sizeof(label), "monitor%d", i);
5902 }
5903 monitor_hds[i] = qemu_chr_open(label, devname, NULL);
5904 if (!monitor_hds[i]) {
5905 fprintf(stderr, "qemu: could not open monitor device '%s'\n",
5906 devname);
5907 exit(1);
5908 }
4c621805
AL		 5909 }
5910 }
5911
2796dae0
AL		 5912 for(i = 0; i < MAX_SERIAL_PORTS; i++) {
5913 const char *devname = serial_devices[i];
5914 if (devname && strcmp(devname, "none")) {
5915 char label[32];
5916 snprintf(label, sizeof(label), "serial%d", i);
ceecf1d1 5917 serial_hds[i] = qemu_chr_open(label, devname, NULL);
2796dae0
AL		 5918 if (!serial_hds[i]) {
5919 fprintf(stderr, "qemu: could not open serial device '%s'\n",
5920 devname);
5921 exit(1);
5922 }
5923 }
5924 }
5925
5926 for(i = 0; i < MAX_PARALLEL_PORTS; i++) {
5927 const char *devname = parallel_devices[i];
5928 if (devname && strcmp(devname, "none")) {
5929 char label[32];
5930 snprintf(label, sizeof(label), "parallel%d", i);
ceecf1d1 5931 parallel_hds[i] = qemu_chr_open(label, devname, NULL);
2796dae0
AL		 5932 if (!parallel_hds[i]) {
5933 fprintf(stderr, "qemu: could not open parallel device '%s'\n",
5934 devname);
5935 exit(1);
5936 }
5937 }
5938 }
5939
5940 for(i = 0; i < MAX_VIRTIO_CONSOLES; i++) {
5941 const char *devname = virtio_consoles[i];
5942 if (devname && strcmp(devname, "none")) {
5943 char label[32];
5944 snprintf(label, sizeof(label), "virtcon%d", i);
ceecf1d1 5945 virtcon_hds[i] = qemu_chr_open(label, devname, NULL);
2796dae0
AL		 5946 if (!virtcon_hds[i]) {
5947 fprintf(stderr, "qemu: could not open virtio console '%s'\n",
5948 devname);
5949 exit(1);
5950 }
5951 }
5952 }
5953
aae9460e
PB		 5954 module_call_init(MODULE_INIT_DEVICE);
5955
09aaa160
MA		 5956 if (watchdog) {
5957 i = select_watchdog(watchdog);
5958 if (i > 0)
5959 exit (i == 1 ? 1 : 0);
5960 }
5961
b6b61144
GH		 5962 if (machine->compat_props) {
5963 qdev_prop_register_compat(machine->compat_props);
5964 }
fbe1b595 5965 machine->init(ram_size, boot_devices,
3023f332
AL		 5966 kernel_filename, kernel_cmdline, initrd_filename, cpu_model);
5967
268a362c 5968
67b3b71d
JQ		 5969#ifndef _WIN32
5970 /* must be after terminal init, SDL library changes signal handlers */
5971 sighandler_setup();
5972#endif
5973
268a362c
AL		 5974 for (env = first_cpu; env != NULL; env = env->next_cpu) {
5975 for (i = 0; i < nb_numa_nodes; i++) {
5976 if (node_cpumask[i] & (1 << env->cpu_index)) {
5977 env->numa_node = i;
5978 }
5979 }
5980 }
5981
6f338c34
AL		 5982 current_machine = machine;
5983
3023f332
AL		 5984 /* init USB devices */
5985 if (usb_enabled) {
bd3c948d 5986 foreach_device_config(DEV_USB, usb_parse);
3023f332
AL		 5987 }
5988
bd3c948d 5989 /* init generic devices */
f31d07d1 5990 if (qemu_opts_foreach(&qemu_device_opts, device_init_func, NULL, 1) != 0)
bd3c948d
GH		 5991 exit(1);
5992
8f391ab4
AL		 5993 if (!display_state)
5994 dumb_display_init();
3023f332
AL		 5995 /* just use the first displaystate for the moment */
5996 ds = display_state;
993fbfdb
AL		 5997
5998 if (display_type == DT_DEFAULT) {
5999#if defined(CONFIG_SDL) || defined(CONFIG_COCOA)
6000 display_type = DT_SDL;
6001#else
6002 display_type = DT_VNC;
6003 vnc_display = "localhost:0,to=99";
6004 show_vnc_port = 1;
6005#endif
6006 }
6007
6008
6009 switch (display_type) {
6010 case DT_NOGRAPHIC:
6011 break;
4d3b6f6e 6012#if defined(CONFIG_CURSES)
993fbfdb
AL		 6013 case DT_CURSES:
6014 curses_display_init(ds, full_screen);
6015 break;
4d3b6f6e 6016#endif
5b0753e0 6017#if defined(CONFIG_SDL)
993fbfdb
AL		 6018 case DT_SDL:
6019 sdl_display_init(ds, full_screen, no_frame);
6020 break;
5b0753e0 6021#elif defined(CONFIG_COCOA)
993fbfdb
AL		 6022 case DT_SDL:
6023 cocoa_display_init(ds, full_screen);
6024 break;
313aa567 6025#endif
993fbfdb
AL		 6026 case DT_VNC:
6027 vnc_display_init(ds);
6028 if (vnc_display_open(ds, vnc_display) < 0)
6029 exit(1);
f92f8afe 6030
993fbfdb
AL		 6031 if (show_vnc_port) {
6032 printf("VNC server running on `%s'\n", vnc_display_local_addr(ds));
f92f8afe 6033 }
993fbfdb
AL		 6034 break;
6035 default:
6036 break;
313aa567 6037 }
7d957bd8 6038 dpy_resize(ds);
5b08fc10 6039
3023f332
AL		 6040 dcl = ds->listeners;
6041 while (dcl != NULL) {
6042 if (dcl->dpy_refresh != NULL) {
6043 ds->gui_timer = qemu_new_timer(rt_clock, gui_update, ds);
6044 qemu_mod_timer(ds->gui_timer, qemu_get_clock(rt_clock));
20d8a3ed 6045 }
3023f332 6046 dcl = dcl->next;
20d8a3ed 6047 }
3023f332 6048
993fbfdb 6049 if (display_type == DT_NOGRAPHIC || display_type == DT_VNC) {
9043b62d
BS		 6050 nographic_timer = qemu_new_timer(rt_clock, nographic_update, NULL);
6051 qemu_mod_timer(nographic_timer, qemu_get_clock(rt_clock));
6052 }
6053
2796dae0 6054 text_consoles_set_display(display_state);
2970a6c9 6055 qemu_chr_initial_reset();
2796dae0 6056
ddd9bbd9
JK		 6057 for (i = 0; i < MAX_MONITOR_DEVICES; i++) {
6058 if (monitor_devices[i] && monitor_hds[i]) {
6059 monitor_init(monitor_hds[i],
6060 MONITOR_USE_READLINE |
6061 ((i == 0) ? MONITOR_IS_DEFAULT : 0));
6062 }
6063 }
82c643ff 6064
8d11df9e 6065 for(i = 0; i < MAX_SERIAL_PORTS; i++) {
c03b0f0f 6066 const char *devname = serial_devices[i];
fd5f393a 6067 if (devname && strcmp(devname, "none")) {
af3a9031 6068 if (strstart(devname, "vc", 0))
7ba1260a 6069 qemu_chr_printf(serial_hds[i], "serial%d console\r\n", i);
8d11df9e 6070 }
82c643ff 6071 }
82c643ff 6072
6508fe59 6073 for(i = 0; i < MAX_PARALLEL_PORTS; i++) {
c03b0f0f 6074 const char *devname = parallel_devices[i];
fd5f393a 6075 if (devname && strcmp(devname, "none")) {
af3a9031 6076 if (strstart(devname, "vc", 0))
7ba1260a 6077 qemu_chr_printf(parallel_hds[i], "parallel%d console\r\n", i);
6508fe59
FB		 6078 }
6079 }
6080
9ede2fde
AL		 6081 for(i = 0; i < MAX_VIRTIO_CONSOLES; i++) {
6082 const char *devname = virtio_consoles[i];
2796dae0 6083 if (virtcon_hds[i] && devname) {
9ede2fde
AL		 6084 if (strstart(devname, "vc", 0))
6085 qemu_chr_printf(virtcon_hds[i], "virtio console%d\r\n", i);
6086 }
6087 }
6088
59030a8c
AL		 6089 if (gdbstub_dev && gdbserver_start(gdbstub_dev) < 0) {
6090 fprintf(stderr, "qemu: could not open gdbserver on device '%s'\n",
6091 gdbstub_dev);
6092 exit(1);
45669e00 6093 }
45669e00 6094
05f2401e
JQ		 6095 if (loadvm) {
6096 if (load_vmstate(cur_mon, loadvm) < 0) {
6097 autostart = 0;
6098 }
6099 }
d63d307f 6100
2bb8c10c 6101 if (incoming) {
5bb7910a 6102 qemu_start_incoming_migration(incoming);
6b99dadc 6103 } else if (autostart) {
c0f4ce77 6104 vm_start();
6b99dadc 6105 }
ffd843bc 6106
b9e82a59 6107#ifndef _WIN32
71e3ceb8
TS		 6108 if (daemonize) {
6109 uint8_t status = 0;
6110 ssize_t len;
71e3ceb8
TS		 6111
6112 again1:
6113 len = write(fds[1], &status, 1);
6114 if (len == -1 && (errno == EINTR))
6115 goto again1;
6116
6117 if (len != 1)
6118 exit(1);
6119
bd54b863 6120 chdir("/");
aeb30be6 6121 TFR(fd = open("/dev/null", O_RDWR));
71e3ceb8
TS		 6122 if (fd == -1)
6123 exit(1);
0858532e 6124 }
71e3ceb8 6125
0858532e
AL		 6126 if (run_as) {
6127 pwd = getpwnam(run_as);
6128 if (!pwd) {
6129 fprintf(stderr, "User \"%s\" doesn't exist\n", run_as);
6130 exit(1);
6131 }
6132 }
6133
6134 if (chroot_dir) {
6135 if (chroot(chroot_dir) < 0) {
6136 fprintf(stderr, "chroot failed\n");
6137 exit(1);
6138 }
6139 chdir("/");
6140 }
6141
6142 if (run_as) {
6143 if (setgid(pwd->pw_gid) < 0) {
6144 fprintf(stderr, "Failed to setgid(%d)\n", pwd->pw_gid);
6145 exit(1);
6146 }
6147 if (setuid(pwd->pw_uid) < 0) {
6148 fprintf(stderr, "Failed to setuid(%d)\n", pwd->pw_uid);
6149 exit(1);
6150 }
6151 if (setuid(0) != -1) {
6152 fprintf(stderr, "Dropping privileges failed\n");
6153 exit(1);
6154 }
6155 }
0858532e
AL		 6156
6157 if (daemonize) {
6158 dup2(fd, 0);
6159 dup2(fd, 1);
6160 dup2(fd, 2);
71e3ceb8 6161
0858532e 6162 close(fd);
71e3ceb8 6163 }
b9e82a59 6164#endif
71e3ceb8 6165
8a7ddc38 6166 main_loop();
40c3bac3 6167 quit_timers();
63a01ef8 6168 net_cleanup();
b46a8906 6169
0824d6fc
FB		 6170 return 0;
6171}
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