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microblaze: Trap if QEMU finds an unknown insns.
[qemu.git] / vl.c
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0824d6fc 1/*
80cabfad 2 * QEMU System Emulator
5fafdf24 3 *
68d0f70e 4 * Copyright (c) 2003-2008 Fabrice Bellard
5fafdf24 5 *
1df912cf
FB		 6 * Permission is hereby granted, free of charge, to any person obtaining a copy
7 * of this software and associated documentation files (the "Software"), to deal
8 * in the Software without restriction, including without limitation the rights
9 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
10 * copies of the Software, and to permit persons to whom the Software is
11 * furnished to do so, subject to the following conditions:
12 *
13 * The above copyright notice and this permission notice shall be included in
14 * all copies or substantial portions of the Software.
15 *
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
19 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
21 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
22 * THE SOFTWARE.
0824d6fc 23 */
0824d6fc 24#include <unistd.h>
0824d6fc
FB		 25#include <fcntl.h>
26#include <signal.h>
27#include <time.h>
0824d6fc 28#include <errno.h>
67b915a5 29#include <sys/time.h>
c88676f8 30#include <zlib.h>
67b915a5 31
71e72a19 32/* Needed early for CONFIG_BSD etc. */
d40cdb10 33#include "config-host.h"
96555a96
BS		 34/* Needed early to override system queue definitions on BSD */
35#include "sys-queue.h"
d40cdb10 36
67b915a5 37#ifndef _WIN32
5cea8590 38#include <libgen.h>
0858532e 39#include <pwd.h>
67b915a5 40#include <sys/times.h>
f1510b2c 41#include <sys/wait.h>
67b915a5 42#include <termios.h>
67b915a5 43#include <sys/mman.h>
f1510b2c 44#include <sys/ioctl.h>
24646c7e 45#include <sys/resource.h>
f1510b2c 46#include <sys/socket.h>
c94c8d64 47#include <netinet/in.h>
24646c7e
BS		 48#include <net/if.h>
49#if defined(__NetBSD__)
50#include <net/if_tap.h>
51#endif
52#ifdef __linux__
53#include <linux/if_tun.h>
54#endif
55#include <arpa/inet.h>
9d728e8c 56#include <dirent.h>
7c9d8e07 57#include <netdb.h>
cb4b976b 58#include <sys/select.h>
71e72a19 59#ifdef CONFIG_BSD
7d3505c5 60#include <sys/stat.h>
c5e97233 61#if defined(__FreeBSD__) || defined(__DragonFly__)
7d3505c5 62#include <libutil.h>
24646c7e
BS		 63#else
64#include <util.h>
128ab2ff 65#endif
5c40d2bd
TS		 66#elif defined (__GLIBC__) && defined (__FreeBSD_kernel__)
67#include <freebsd/stdlib.h>
7d3505c5 68#else
223f0d72 69#ifdef __linux__
7d3505c5
FB		 70#include <pty.h>
71#include <malloc.h>
fd872598 72#include <linux/rtc.h>
1889465a 73#include <sys/prctl.h>
bd494f4c
TS		 74
75/* For the benefit of older linux systems which don't supply it,
76 we use a local copy of hpet.h. */
77/* #include <linux/hpet.h> */
78#include "hpet.h"
79
e57a8c0e 80#include <linux/ppdev.h>
5867c88a 81#include <linux/parport.h>
223f0d72
BS		 82#endif
83#ifdef __sun__
d5d10bc3
TS		 84#include <sys/stat.h>
85#include <sys/ethernet.h>
86#include <sys/sockio.h>
d5d10bc3
TS		 87#include <netinet/arp.h>
88#include <netinet/in.h>
89#include <netinet/in_systm.h>
90#include <netinet/ip.h>
91#include <netinet/ip_icmp.h> // must come after ip.h
92#include <netinet/udp.h>
93#include <netinet/tcp.h>
94#include <net/if.h>
95#include <syslog.h>
96#include <stropts.h>
67b915a5 97#endif
7d3505c5 98#endif
ec530c81 99#endif
67b915a5 100
9892fbfb
BS		 101#if defined(__OpenBSD__)
102#include <util.h>
103#endif
104
8a16d273
TS		 105#if defined(CONFIG_VDE)
106#include <libvdeplug.h>
107#endif
108
67b915a5 109#ifdef _WIN32
49dc768d 110#include <windows.h>
4fddf62a 111#include <mmsystem.h>
67b915a5
FB		 112#endif
113
73332e5c 114#ifdef CONFIG_SDL
59a36a2f 115#if defined(__APPLE__) || defined(main)
6693665a 116#include <SDL.h>
880fec5d 117int qemu_main(int argc, char **argv, char **envp);
118int main(int argc, char **argv)
119{
59a36a2f 120 return qemu_main(argc, argv, NULL);
880fec5d 121}
122#undef main
123#define main qemu_main
96bcd4f8 124#endif
73332e5c 125#endif /* CONFIG_SDL */
0824d6fc 126
5b0753e0
FB		 127#ifdef CONFIG_COCOA
128#undef main
129#define main qemu_main
130#endif /* CONFIG_COCOA */
131
511d2b14
BS		 132#include "hw/hw.h"
133#include "hw/boards.h"
134#include "hw/usb.h"
135#include "hw/pcmcia.h"
136#include "hw/pc.h"
137#include "hw/audiodev.h"
138#include "hw/isa.h"
139#include "hw/baum.h"
140#include "hw/bt.h"
9dd986cc 141#include "hw/watchdog.h"
b6f6e3d3 142#include "hw/smbios.h"
e37630ca 143#include "hw/xen.h"
bd3c948d 144#include "hw/qdev.h"
5ef4efa4 145#include "bt-host.h"
511d2b14
BS		 146#include "net.h"
147#include "monitor.h"
148#include "console.h"
149#include "sysemu.h"
150#include "gdbstub.h"
151#include "qemu-timer.h"
152#include "qemu-char.h"
153#include "cache-utils.h"
154#include "block.h"
a718acec 155#include "dma.h"
511d2b14
BS		 156#include "audio/audio.h"
157#include "migration.h"
158#include "kvm.h"
159#include "balloon.h"
d3f24367 160#include "qemu-option.h"
7282a033 161#include "qemu-config.h"
511d2b14 162
0824d6fc 163#include "disas.h"
fc01f7e7 164
8a7ddc38 165#include "exec-all.h"
0824d6fc 166
511d2b14
BS		 167#include "qemu_socket.h"
168
d918f23e 169#include "slirp/libslirp.h"
511d2b14 170
9dc63a1e
BS		 171//#define DEBUG_NET
172//#define DEBUG_SLIRP
330d0414 173
1bfe856e 174#define DEFAULT_RAM_SIZE 128
313aa567 175
ddd9bbd9
JK		 176/* Maximum number of monitor devices */
177#define MAX_MONITOR_DEVICES 10
178
5cea8590 179static const char *data_dir;
1192dad8 180const char *bios_name = NULL;
e4bcb14c 181/* Note: drives_table[MAX_DRIVES] is a dummy block driver if none available
faea38e7 182 to store the VM snapshots */
751c6a17 183struct drivelist drives = TAILQ_HEAD_INITIALIZER(drives);
3b0ba927 184struct driveoptlist driveopts = TAILQ_HEAD_INITIALIZER(driveopts);
cb5a7aa8 185enum vga_retrace_method vga_retrace_method = VGA_RETRACE_DUMB;
3023f332 186static DisplayState *display_state;
993fbfdb 187DisplayType display_type = DT_DEFAULT;
3d11d0eb 188const char* keyboard_layout = NULL;
313aa567 189int64_t ticks_per_sec;
00f82b8a 190ram_addr_t ram_size;
c4b1fcc0 191int nb_nics;
7c9d8e07 192NICInfo nd_table[MAX_NICS];
8a7ddc38 193int vm_running;
d399f677 194int autostart;
f6503059
AZ		 195static int rtc_utc = 1;
196static int rtc_date_offset = -1; /* -1 means no change */
86176759 197int vga_interface_type = VGA_CIRRUS;
d827220b
FB		 198#ifdef TARGET_SPARC
199int graphic_width = 1024;
200int graphic_height = 768;
eee0b836 201int graphic_depth = 8;
d827220b 202#else
1bfe856e
FB		 203int graphic_width = 800;
204int graphic_height = 600;
e9b137c2 205int graphic_depth = 15;
eee0b836 206#endif
dbed7e40 207static int full_screen = 0;
634a21f6 208#ifdef CONFIG_SDL
dbed7e40 209static int no_frame = 0;
634a21f6 210#endif
667accab 211int no_quit = 0;
8d11df9e 212CharDriverState *serial_hds[MAX_SERIAL_PORTS];
6508fe59 213CharDriverState *parallel_hds[MAX_PARALLEL_PORTS];
9ede2fde 214CharDriverState *virtcon_hds[MAX_VIRTIO_CONSOLES];
a09db21f
FB		 215#ifdef TARGET_I386
216int win2k_install_hack = 0;
73822ec8 217int rtc_td_hack = 0;
a09db21f 218#endif
bb36d470 219int usb_enabled = 0;
1b530a6d 220int singlestep = 0;
6a00d601 221int smp_cpus = 1;
6be68d7e 222int max_cpus = 0;
dc6b1c09
AP		 223int smp_cores = 1;
224int smp_threads = 1;
73fc9742 225const char *vnc_display;
6515b203 226int acpi_enabled = 1;
16b29ae1 227int no_hpet = 0;
52ca8d6a 228int fd_bootchk = 1;
d1beab82 229int no_reboot = 0;
b2f76161 230int no_shutdown = 0;
9467cd46 231int cursor_hide = 1;
a171fe39 232int graphic_rotate = 0;
6b35e7bf 233uint8_t irq0override = 1;
b9e82a59 234#ifndef _WIN32
71e3ceb8 235int daemonize = 0;
b9e82a59 236#endif
09aaa160 237const char *watchdog;
9ae02555
TS		 238const char *option_rom[MAX_OPTION_ROMS];
239int nb_option_roms;
8e71621f 240int semihosting_enabled = 0;
2b8f2d41
AZ		 241#ifdef TARGET_ARM
242int old_param = 0;
243#endif
c35734b2 244const char *qemu_name;
3780e197 245int alt_grab = 0;
95efd11c 246#if defined(TARGET_SPARC) || defined(TARGET_PPC)
66508601
BS		 247unsigned int nb_prom_envs = 0;
248const char *prom_envs[MAX_PROM_ENVS];
249#endif
95387491 250int boot_menu;
0824d6fc 251
268a362c
AL		 252int nb_numa_nodes;
253uint64_t node_mem[MAX_NODES];
254uint64_t node_cpumask[MAX_NODES];
255
ee5605e5
AZ		 256static CPUState *cur_cpu;
257static CPUState *next_cpu;
43b96858 258static int timer_alarm_pending = 1;
bf20dc07 259/* Conversion factor from emulated instructions to virtual clock ticks. */
2e70f6ef 260static int icount_time_shift;
bf20dc07 261/* Arbitrarily pick 1MIPS as the minimum allowable speed. */
2e70f6ef
PB		 262#define MAX_ICOUNT_SHIFT 10
263/* Compensate for varying guest execution speed. */
264static int64_t qemu_icount_bias;
dbed7e40
BS		 265static QEMUTimer *icount_rt_timer;
266static QEMUTimer *icount_vm_timer;
9043b62d 267static QEMUTimer *nographic_timer;
ee5605e5 268
8fcb1b90
BS		 269uint8_t qemu_uuid[16];
270
76e30d0f
JK		 271static QEMUBootSetHandler *boot_set_handler;
272static void *boot_set_opaque;
273
0824d6fc 274/***********************************************************/
26aa7d72
FB		 275/* x86 ISA bus support */
276
277target_phys_addr_t isa_mem_base = 0;
3de388f6 278PicState2 *isa_pic;
0824d6fc 279
0824d6fc 280/***********************************************************/
0824d6fc
FB		 281void hw_error(const char *fmt, ...)
282{
283 va_list ap;
6a00d601 284 CPUState *env;
0824d6fc
FB		 285
286 va_start(ap, fmt);
287 fprintf(stderr, "qemu: hardware error: ");
288 vfprintf(stderr, fmt, ap);
289 fprintf(stderr, "\n");
6a00d601
FB		 290 for(env = first_cpu; env != NULL; env = env->next_cpu) {
291 fprintf(stderr, "CPU #%d:\n", env->cpu_index);
0824d6fc 292#ifdef TARGET_I386
6a00d601 293 cpu_dump_state(env, stderr, fprintf, X86_DUMP_FPU);
c45886db 294#else
6a00d601 295 cpu_dump_state(env, stderr, fprintf, 0);
0824d6fc 296#endif
6a00d601 297 }
0824d6fc
FB		 298 va_end(ap);
299 abort();
300}
1889465a
AK		 301
302static void set_proc_name(const char *s)
303{
6ca8d0fd 304#if defined(__linux__) && defined(PR_SET_NAME)
1889465a
AK		 305 char name[16];
306 if (!s)
307 return;
308 name[sizeof(name) - 1] = 0;
309 strncpy(name, s, sizeof(name));
310 /* Could rewrite argv[0] too, but that's a bit more complicated.
311 This simple way is enough for `top'. */
312 prctl(PR_SET_NAME, name);
313#endif
314}
df751fa8
AL		 315
316/***************/
317/* ballooning */
318
319static QEMUBalloonEvent *qemu_balloon_event;
320void *qemu_balloon_event_opaque;
321
322void qemu_add_balloon_handler(QEMUBalloonEvent *func, void *opaque)
323{
324 qemu_balloon_event = func;
325 qemu_balloon_event_opaque = opaque;
326}
327
328void qemu_balloon(ram_addr_t target)
329{
330 if (qemu_balloon_event)
331 qemu_balloon_event(qemu_balloon_event_opaque, target);
332}
333
334ram_addr_t qemu_balloon_status(void)
335{
336 if (qemu_balloon_event)
337 return qemu_balloon_event(qemu_balloon_event_opaque, 0);
338 return 0;
339}
0824d6fc 340
63066f4f
FB		 341/***********************************************************/
342/* keyboard/mouse */
343
344static QEMUPutKBDEvent *qemu_put_kbd_event;
345static void *qemu_put_kbd_event_opaque;
455204eb
TS		 346static QEMUPutMouseEntry *qemu_put_mouse_event_head;
347static QEMUPutMouseEntry *qemu_put_mouse_event_current;
63066f4f
FB		 348
349void qemu_add_kbd_event_handler(QEMUPutKBDEvent *func, void *opaque)
350{
351 qemu_put_kbd_event_opaque = opaque;
352 qemu_put_kbd_event = func;
353}
354
455204eb
TS		 355QEMUPutMouseEntry *qemu_add_mouse_event_handler(QEMUPutMouseEvent *func,
356 void *opaque, int absolute,
357 const char *name)
63066f4f 358{
455204eb
TS		 359 QEMUPutMouseEntry *s, *cursor;
360
361 s = qemu_mallocz(sizeof(QEMUPutMouseEntry));
455204eb
TS		 362
363 s->qemu_put_mouse_event = func;
364 s->qemu_put_mouse_event_opaque = opaque;
365 s->qemu_put_mouse_event_absolute = absolute;
366 s->qemu_put_mouse_event_name = qemu_strdup(name);
367 s->next = NULL;
368
369 if (!qemu_put_mouse_event_head) {
370 qemu_put_mouse_event_head = qemu_put_mouse_event_current = s;
371 return s;
372 }
373
374 cursor = qemu_put_mouse_event_head;
375 while (cursor->next != NULL)
376 cursor = cursor->next;
377
378 cursor->next = s;
379 qemu_put_mouse_event_current = s;
380
381 return s;
382}
383
384void qemu_remove_mouse_event_handler(QEMUPutMouseEntry *entry)
385{
386 QEMUPutMouseEntry *prev = NULL, *cursor;
387
388 if (!qemu_put_mouse_event_head || entry == NULL)
389 return;
390
391 cursor = qemu_put_mouse_event_head;
392 while (cursor != NULL && cursor != entry) {
393 prev = cursor;
394 cursor = cursor->next;
395 }
396
397 if (cursor == NULL) // does not exist or list empty
398 return;
399 else if (prev == NULL) { // entry is head
400 qemu_put_mouse_event_head = cursor->next;
401 if (qemu_put_mouse_event_current == entry)
402 qemu_put_mouse_event_current = cursor->next;
403 qemu_free(entry->qemu_put_mouse_event_name);
404 qemu_free(entry);
405 return;
406 }
407
408 prev->next = entry->next;
409
410 if (qemu_put_mouse_event_current == entry)
411 qemu_put_mouse_event_current = prev;
412
413 qemu_free(entry->qemu_put_mouse_event_name);
414 qemu_free(entry);
63066f4f
FB		 415}
416
417void kbd_put_keycode(int keycode)
418{
419 if (qemu_put_kbd_event) {
420 qemu_put_kbd_event(qemu_put_kbd_event_opaque, keycode);
421 }
422}
423
424void kbd_mouse_event(int dx, int dy, int dz, int buttons_state)
425{
455204eb
TS		 426 QEMUPutMouseEvent *mouse_event;
427 void *mouse_event_opaque;
a171fe39 428 int width;
455204eb
TS		 429
430 if (!qemu_put_mouse_event_current) {
431 return;
432 }
433
434 mouse_event =
435 qemu_put_mouse_event_current->qemu_put_mouse_event;
436 mouse_event_opaque =
437 qemu_put_mouse_event_current->qemu_put_mouse_event_opaque;
438
439 if (mouse_event) {
a171fe39
AZ		 440 if (graphic_rotate) {
441 if (qemu_put_mouse_event_current->qemu_put_mouse_event_absolute)
442 width = 0x7fff;
443 else
b94ed577 444 width = graphic_width - 1;
a171fe39
AZ		 445 mouse_event(mouse_event_opaque,
446 width - dy, dx, dz, buttons_state);
447 } else
448 mouse_event(mouse_event_opaque,
449 dx, dy, dz, buttons_state);
63066f4f
FB		 450 }
451}
452
09b26c5e
FB		 453int kbd_mouse_is_absolute(void)
454{
455204eb
TS		 455 if (!qemu_put_mouse_event_current)
456 return 0;
457
458 return qemu_put_mouse_event_current->qemu_put_mouse_event_absolute;
459}
460
376253ec 461void do_info_mice(Monitor *mon)
455204eb
TS		 462{
463 QEMUPutMouseEntry *cursor;
464 int index = 0;
465
466 if (!qemu_put_mouse_event_head) {
376253ec 467 monitor_printf(mon, "No mouse devices connected\n");
455204eb
TS		 468 return;
469 }
470
376253ec 471 monitor_printf(mon, "Mouse devices available:\n");
455204eb
TS		 472 cursor = qemu_put_mouse_event_head;
473 while (cursor != NULL) {
376253ec
AL		 474 monitor_printf(mon, "%c Mouse #%d: %s\n",
475 (cursor == qemu_put_mouse_event_current ? '*' : ' '),
476 index, cursor->qemu_put_mouse_event_name);
455204eb
TS		 477 index++;
478 cursor = cursor->next;
479 }
480}
481
d54908a5 482void do_mouse_set(Monitor *mon, const QDict *qdict)
455204eb
TS		 483{
484 QEMUPutMouseEntry *cursor;
485 int i = 0;
d54908a5 486 int index = qdict_get_int(qdict, "index");
455204eb
TS		 487
488 if (!qemu_put_mouse_event_head) {
376253ec 489 monitor_printf(mon, "No mouse devices connected\n");
455204eb
TS		 490 return;
491 }
492
493 cursor = qemu_put_mouse_event_head;
494 while (cursor != NULL && index != i) {
495 i++;
496 cursor = cursor->next;
497 }
498
499 if (cursor != NULL)
500 qemu_put_mouse_event_current = cursor;
501 else
376253ec 502 monitor_printf(mon, "Mouse at given index not found\n");
09b26c5e
FB		 503}
504
1dce7c3c
FB		 505/* compute with 96 bit intermediate result: (a*b)/c */
506uint64_t muldiv64(uint64_t a, uint32_t b, uint32_t c)
0824d6fc 507{
1dce7c3c
FB		 508 union {
509 uint64_t ll;
510 struct {
e2542fe2 511#ifdef HOST_WORDS_BIGENDIAN
1dce7c3c
FB		 512 uint32_t high, low;
513#else
514 uint32_t low, high;
3b46e624 515#endif
1dce7c3c
FB		 516 } l;
517 } u, res;
518 uint64_t rl, rh;
0824d6fc 519
1dce7c3c
FB		 520 u.ll = a;
521 rl = (uint64_t)u.l.low * (uint64_t)b;
522 rh = (uint64_t)u.l.high * (uint64_t)b;
523 rh += (rl >> 32);
524 res.l.high = rh / c;
525 res.l.low = (((rh % c) << 32) + (rl & 0xffffffff)) / c;
526 return res.ll;
34865134
FB		 527}
528
1dce7c3c
FB		 529/***********************************************************/
530/* real time host monotonic timer */
34865134 531
1dce7c3c 532#define QEMU_TIMER_BASE 1000000000LL
34865134 533
1dce7c3c 534#ifdef WIN32
0824d6fc 535
1dce7c3c 536static int64_t clock_freq;
1115dde7 537
1dce7c3c 538static void init_get_clock(void)
1115dde7 539{
a8e5ac33
FB		 540 LARGE_INTEGER freq;
541 int ret;
1dce7c3c
FB		 542 ret = QueryPerformanceFrequency(&freq);
543 if (ret == 0) {
544 fprintf(stderr, "Could not calibrate ticks\n");
545 exit(1);
546 }
547 clock_freq = freq.QuadPart;
1115dde7
FB		 548}
549
1dce7c3c 550static int64_t get_clock(void)
b8076a74 551{
1dce7c3c
FB		 552 LARGE_INTEGER ti;
553 QueryPerformanceCounter(&ti);
554 return muldiv64(ti.QuadPart, QEMU_TIMER_BASE, clock_freq);
b8076a74
FB		 555}
556
1dce7c3c 557#else
90cb9493 558
1dce7c3c
FB		 559static int use_rt_clock;
560
561static void init_get_clock(void)
90cb9493 562{
1dce7c3c 563 use_rt_clock = 0;
c5e97233
BS		 564#if defined(__linux__) || (defined(__FreeBSD__) && __FreeBSD_version >= 500000) \
565 || defined(__DragonFly__)
1dce7c3c
FB		 566 {
567 struct timespec ts;
568 if (clock_gettime(CLOCK_MONOTONIC, &ts) == 0) {
569 use_rt_clock = 1;
570 }
571 }
572#endif
90cb9493
FB		 573}
574
1dce7c3c 575static int64_t get_clock(void)
fdbb4691 576{
c5e97233
BS		 577#if defined(__linux__) || (defined(__FreeBSD__) && __FreeBSD_version >= 500000) \
578 || defined(__DragonFly__)
1dce7c3c
FB		 579 if (use_rt_clock) {
580 struct timespec ts;
581 clock_gettime(CLOCK_MONOTONIC, &ts);
582 return ts.tv_sec * 1000000000LL + ts.tv_nsec;
5fafdf24 583 } else
fdbb4691 584#endif
1dce7c3c
FB		 585 {
586 /* XXX: using gettimeofday leads to problems if the date
587 changes, so it should be avoided. */
588 struct timeval tv;
589 gettimeofday(&tv, NULL);
590 return tv.tv_sec * 1000000000LL + (tv.tv_usec * 1000);
591 }
fdbb4691 592}
34865134
FB		 593#endif
594
2e70f6ef
PB		 595/* Return the virtual CPU time, based on the instruction counter. */
596static int64_t cpu_get_icount(void)
597{
598 int64_t icount;
599 CPUState *env = cpu_single_env;;
600 icount = qemu_icount;
601 if (env) {
602 if (!can_do_io(env))
603 fprintf(stderr, "Bad clock read\n");
604 icount -= (env->icount_decr.u16.low + env->icount_extra);
605 }
606 return qemu_icount_bias + (icount << icount_time_shift);
607}
608
1dce7c3c
FB		 609/***********************************************************/
610/* guest cycle counter */
611
eade0f19 612static int64_t cpu_ticks_prev;
34865134 613static int64_t cpu_ticks_offset;
1dce7c3c 614static int64_t cpu_clock_offset;
8a7ddc38 615static int cpu_ticks_enabled;
34865134 616
1dce7c3c
FB		 617/* return the host CPU cycle counter and handle stop/restart */
618int64_t cpu_get_ticks(void)
34865134 619{
2e70f6ef
PB		 620 if (use_icount) {
621 return cpu_get_icount();
622 }
8a7ddc38
FB		 623 if (!cpu_ticks_enabled) {
624 return cpu_ticks_offset;
625 } else {
eade0f19
FB		 626 int64_t ticks;
627 ticks = cpu_get_real_ticks();
628 if (cpu_ticks_prev > ticks) {
629 /* Note: non increasing ticks may happen if the host uses
630 software suspend */
631 cpu_ticks_offset += cpu_ticks_prev - ticks;
632 }
633 cpu_ticks_prev = ticks;
634 return ticks + cpu_ticks_offset;
8a7ddc38 635 }
34865134
FB		 636}
637
1dce7c3c
FB		 638/* return the host CPU monotonic timer and handle stop/restart */
639static int64_t cpu_get_clock(void)
640{
641 int64_t ti;
642 if (!cpu_ticks_enabled) {
643 return cpu_clock_offset;
644 } else {
645 ti = get_clock();
646 return ti + cpu_clock_offset;
647 }
648}
649
34865134
FB		 650/* enable cpu_get_ticks() */
651void cpu_enable_ticks(void)
652{
8a7ddc38
FB		 653 if (!cpu_ticks_enabled) {
654 cpu_ticks_offset -= cpu_get_real_ticks();
1dce7c3c 655 cpu_clock_offset -= get_clock();
8a7ddc38
FB		 656 cpu_ticks_enabled = 1;
657 }
34865134
FB		 658}
659
660/* disable cpu_get_ticks() : the clock is stopped. You must not call
661 cpu_get_ticks() after that. */
662void cpu_disable_ticks(void)
663{
8a7ddc38
FB		 664 if (cpu_ticks_enabled) {
665 cpu_ticks_offset = cpu_get_ticks();
1dce7c3c 666 cpu_clock_offset = cpu_get_clock();
8a7ddc38
FB		 667 cpu_ticks_enabled = 0;
668 }
34865134
FB		 669}
670
1dce7c3c
FB		 671/***********************************************************/
672/* timers */
5fafdf24 673
8a7ddc38
FB		 674#define QEMU_TIMER_REALTIME 0
675#define QEMU_TIMER_VIRTUAL 1
676
677struct QEMUClock {
678 int type;
679 /* XXX: add frequency */
680};
681
682struct QEMUTimer {
683 QEMUClock *clock;
684 int64_t expire_time;
685 QEMUTimerCB *cb;
686 void *opaque;
687 struct QEMUTimer *next;
688};
689
c8994013
TS		 690struct qemu_alarm_timer {
691 char const *name;
efe75411 692 unsigned int flags;
c8994013
TS		 693
694 int (*start)(struct qemu_alarm_timer *t);
695 void (*stop)(struct qemu_alarm_timer *t);
efe75411 696 void (*rearm)(struct qemu_alarm_timer *t);
c8994013
TS		 697 void *priv;
698};
699
efe75411 700#define ALARM_FLAG_DYNTICKS 0x1
d5d08334 701#define ALARM_FLAG_EXPIRED 0x2
efe75411
TS		 702
703static inline int alarm_has_dynticks(struct qemu_alarm_timer *t)
704{
e332340a 705 return t && (t->flags & ALARM_FLAG_DYNTICKS);
efe75411
TS		 706}
707
708static void qemu_rearm_alarm_timer(struct qemu_alarm_timer *t)
709{
710 if (!alarm_has_dynticks(t))
711 return;
712
713 t->rearm(t);
714}
715
716/* TODO: MIN_TIMER_REARM_US should be optimized */
717#define MIN_TIMER_REARM_US 250
718
c8994013 719static struct qemu_alarm_timer *alarm_timer;
8a7ddc38 720
40c3bac3 721#ifdef _WIN32
c8994013
TS		 722
723struct qemu_alarm_win32 {
724 MMRESULT timerId;
c8994013 725 unsigned int period;
ef28c4b0 726} alarm_win32_data = {0, -1};
c8994013
TS		 727
728static int win32_start_timer(struct qemu_alarm_timer *t);
729static void win32_stop_timer(struct qemu_alarm_timer *t);
efe75411 730static void win32_rearm_timer(struct qemu_alarm_timer *t);
c8994013 731
40c3bac3 732#else
c8994013
TS		 733
734static int unix_start_timer(struct qemu_alarm_timer *t);
735static void unix_stop_timer(struct qemu_alarm_timer *t);
736
231c6586
TS		 737#ifdef __linux__
738
efe75411
TS		 739static int dynticks_start_timer(struct qemu_alarm_timer *t);
740static void dynticks_stop_timer(struct qemu_alarm_timer *t);
741static void dynticks_rearm_timer(struct qemu_alarm_timer *t);
742
c40ec5a9
TS		 743static int hpet_start_timer(struct qemu_alarm_timer *t);
744static void hpet_stop_timer(struct qemu_alarm_timer *t);
745
c8994013
TS		 746static int rtc_start_timer(struct qemu_alarm_timer *t);
747static void rtc_stop_timer(struct qemu_alarm_timer *t);
748
efe75411 749#endif /* __linux__ */
8a7ddc38 750
c8994013
TS		 751#endif /* _WIN32 */
752
2e70f6ef 753/* Correlation between real and virtual time is always going to be
bf20dc07 754 fairly approximate, so ignore small variation.
2e70f6ef
PB		 755 When the guest is idle real and virtual time will be aligned in
756 the IO wait loop. */
757#define ICOUNT_WOBBLE (QEMU_TIMER_BASE / 10)
758
759static void icount_adjust(void)
760{
761 int64_t cur_time;
762 int64_t cur_icount;
763 int64_t delta;
764 static int64_t last_delta;
765 /* If the VM is not running, then do nothing. */
766 if (!vm_running)
767 return;
768
769 cur_time = cpu_get_clock();
770 cur_icount = qemu_get_clock(vm_clock);
771 delta = cur_icount - cur_time;
772 /* FIXME: This is a very crude algorithm, somewhat prone to oscillation. */
773 if (delta > 0
774 && last_delta + ICOUNT_WOBBLE < delta * 2
775 && icount_time_shift > 0) {
776 /* The guest is getting too far ahead. Slow time down. */
777 icount_time_shift--;
778 }
779 if (delta < 0
780 && last_delta - ICOUNT_WOBBLE > delta * 2
781 && icount_time_shift < MAX_ICOUNT_SHIFT) {
782 /* The guest is getting too far behind. Speed time up. */
783 icount_time_shift++;
784 }
785 last_delta = delta;
786 qemu_icount_bias = cur_icount - (qemu_icount << icount_time_shift);
787}
788
789static void icount_adjust_rt(void * opaque)
790{
791 qemu_mod_timer(icount_rt_timer,
792 qemu_get_clock(rt_clock) + 1000);
793 icount_adjust();
794}
795
796static void icount_adjust_vm(void * opaque)
797{
798 qemu_mod_timer(icount_vm_timer,
799 qemu_get_clock(vm_clock) + QEMU_TIMER_BASE / 10);
800 icount_adjust();
801}
802
803static void init_icount_adjust(void)
804{
805 /* Have both realtime and virtual time triggers for speed adjustment.
806 The realtime trigger catches emulated time passing too slowly,
807 the virtual time trigger catches emulated time passing too fast.
808 Realtime triggers occur even when idle, so use them less frequently
809 than VM triggers. */
810 icount_rt_timer = qemu_new_timer(rt_clock, icount_adjust_rt, NULL);
811 qemu_mod_timer(icount_rt_timer,
812 qemu_get_clock(rt_clock) + 1000);
813 icount_vm_timer = qemu_new_timer(vm_clock, icount_adjust_vm, NULL);
814 qemu_mod_timer(icount_vm_timer,
815 qemu_get_clock(vm_clock) + QEMU_TIMER_BASE / 10);
816}
817
c8994013 818static struct qemu_alarm_timer alarm_timers[] = {
efe75411 819#ifndef _WIN32
231c6586 820#ifdef __linux__
efe75411
TS		 821 {"dynticks", ALARM_FLAG_DYNTICKS, dynticks_start_timer,
822 dynticks_stop_timer, dynticks_rearm_timer, NULL},
c40ec5a9 823 /* HPET - if available - is preferred */
efe75411 824 {"hpet", 0, hpet_start_timer, hpet_stop_timer, NULL, NULL},
c40ec5a9 825 /* ...otherwise try RTC */
efe75411 826 {"rtc", 0, rtc_start_timer, rtc_stop_timer, NULL, NULL},
c8994013 827#endif
efe75411 828 {"unix", 0, unix_start_timer, unix_stop_timer, NULL, NULL},
c8994013 829#else
efe75411
TS		 830 {"dynticks", ALARM_FLAG_DYNTICKS, win32_start_timer,
831 win32_stop_timer, win32_rearm_timer, &alarm_win32_data},
832 {"win32", 0, win32_start_timer,
833 win32_stop_timer, NULL, &alarm_win32_data},
c8994013
TS		 834#endif
835 {NULL, }
836};
837
3f47aa8c 838static void show_available_alarms(void)
f3dcfada
TS		 839{
840 int i;
841
842 printf("Available alarm timers, in order of precedence:\n");
843 for (i = 0; alarm_timers[i].name; i++)
844 printf("%s\n", alarm_timers[i].name);
845}
846
847static void configure_alarms(char const *opt)
848{
849 int i;
850 int cur = 0;
b1503cda 851 int count = ARRAY_SIZE(alarm_timers) - 1;
f3dcfada
TS		 852 char *arg;
853 char *name;
2e70f6ef 854 struct qemu_alarm_timer tmp;
f3dcfada 855
3adda04c 856 if (!strcmp(opt, "?")) {
f3dcfada
TS		 857 show_available_alarms();
858 exit(0);
859 }
860
73ffc805 861 arg = qemu_strdup(opt);
f3dcfada
TS		 862
863 /* Reorder the array */
864 name = strtok(arg, ",");
865 while (name) {
e2b577e5 866 for (i = 0; i < count && alarm_timers[i].name; i++) {
f3dcfada
TS		 867 if (!strcmp(alarm_timers[i].name, name))
868 break;
869 }
870
871 if (i == count) {
872 fprintf(stderr, "Unknown clock %s\n", name);
873 goto next;
874 }
875
876 if (i < cur)
877 /* Ignore */
878 goto next;
879
880 /* Swap */
881 tmp = alarm_timers[i];
882 alarm_timers[i] = alarm_timers[cur];
883 alarm_timers[cur] = tmp;
884
885 cur++;
886next:
887 name = strtok(NULL, ",");
888 }
889
73ffc805 890 qemu_free(arg);
f3dcfada
TS		 891
892 if (cur) {
2e70f6ef 893 /* Disable remaining timers */
f3dcfada
TS		 894 for (i = cur; i < count; i++)
895 alarm_timers[i].name = NULL;
3adda04c
AJ		 896 } else {
897 show_available_alarms();
898 exit(1);
f3dcfada 899 }
f3dcfada
TS		 900}
901
c8994013
TS		 902QEMUClock *rt_clock;
903QEMUClock *vm_clock;
904
905static QEMUTimer *active_timers[2];
906
9596ebb7 907static QEMUClock *qemu_new_clock(int type)
8a7ddc38
FB		 908{
909 QEMUClock *clock;
910 clock = qemu_mallocz(sizeof(QEMUClock));
8a7ddc38
FB		 911 clock->type = type;
912 return clock;
913}
914
915QEMUTimer *qemu_new_timer(QEMUClock *clock, QEMUTimerCB *cb, void *opaque)
916{
917 QEMUTimer *ts;
918
919 ts = qemu_mallocz(sizeof(QEMUTimer));
920 ts->clock = clock;
921 ts->cb = cb;
922 ts->opaque = opaque;
923 return ts;
924}
925
926void qemu_free_timer(QEMUTimer *ts)
927{
928 qemu_free(ts);
929}
930
931/* stop a timer, but do not dealloc it */
932void qemu_del_timer(QEMUTimer *ts)
933{
934 QEMUTimer **pt, *t;
935
936 /* NOTE: this code must be signal safe because
937 qemu_timer_expired() can be called from a signal. */
938 pt = &active_timers[ts->clock->type];
939 for(;;) {
940 t = *pt;
941 if (!t)
942 break;
943 if (t == ts) {
944 *pt = t->next;
945 break;
946 }
947 pt = &t->next;
948 }
949}
950
951/* modify the current timer so that it will be fired when current_time
952 >= expire_time. The corresponding callback will be called. */
953void qemu_mod_timer(QEMUTimer *ts, int64_t expire_time)
954{
955 QEMUTimer **pt, *t;
956
957 qemu_del_timer(ts);
958
959 /* add the timer in the sorted list */
960 /* NOTE: this code must be signal safe because
961 qemu_timer_expired() can be called from a signal. */
962 pt = &active_timers[ts->clock->type];
963 for(;;) {
964 t = *pt;
965 if (!t)
966 break;
5fafdf24 967 if (t->expire_time > expire_time)
8a7ddc38
FB		 968 break;
969 pt = &t->next;
970 }
971 ts->expire_time = expire_time;
972 ts->next = *pt;
973 *pt = ts;
d5d08334
AZ		 974
975 /* Rearm if necessary */
2e70f6ef
PB		 976 if (pt == &active_timers[ts->clock->type]) {
977 if ((alarm_timer->flags & ALARM_FLAG_EXPIRED) == 0) {
978 qemu_rearm_alarm_timer(alarm_timer);
979 }
980 /* Interrupt execution to force deadline recalculation. */
d9f75a4e
AL		 981 if (use_icount)
982 qemu_notify_event();
2e70f6ef 983 }
8a7ddc38
FB		 984}
985
986int qemu_timer_pending(QEMUTimer *ts)
987{
988 QEMUTimer *t;
989 for(t = active_timers[ts->clock->type]; t != NULL; t = t->next) {
990 if (t == ts)
991 return 1;
992 }
993 return 0;
994}
995
2430ffe4 996int qemu_timer_expired(QEMUTimer *timer_head, int64_t current_time)
8a7ddc38
FB		 997{
998 if (!timer_head)
999 return 0;
1000 return (timer_head->expire_time <= current_time);
1001}
1002
1003static void qemu_run_timers(QEMUTimer **ptimer_head, int64_t current_time)
1004{
1005 QEMUTimer *ts;
3b46e624 1006
8a7ddc38
FB		 1007 for(;;) {
1008 ts = *ptimer_head;
e95c8d51 1009 if (!ts || ts->expire_time > current_time)
8a7ddc38
FB		 1010 break;
1011 /* remove timer from the list before calling the callback */
1012 *ptimer_head = ts->next;
1013 ts->next = NULL;
3b46e624 1014
8a7ddc38
FB		 1015 /* run the callback (the timer list can be modified) */
1016 ts->cb(ts->opaque);
1017 }
1018}
1019
1020int64_t qemu_get_clock(QEMUClock *clock)
1021{
1022 switch(clock->type) {
1023 case QEMU_TIMER_REALTIME:
1dce7c3c 1024 return get_clock() / 1000000;
8a7ddc38
FB		 1025 default:
1026 case QEMU_TIMER_VIRTUAL:
2e70f6ef
PB		 1027 if (use_icount) {
1028 return cpu_get_icount();
1029 } else {
1030 return cpu_get_clock();
1031 }
8a7ddc38
FB		 1032 }
1033}
1034
1dce7c3c
FB		 1035static void init_timers(void)
1036{
1037 init_get_clock();
1038 ticks_per_sec = QEMU_TIMER_BASE;
1039 rt_clock = qemu_new_clock(QEMU_TIMER_REALTIME);
1040 vm_clock = qemu_new_clock(QEMU_TIMER_VIRTUAL);
1041}
1042
8a7ddc38
FB		 1043/* save a timer */
1044void qemu_put_timer(QEMUFile *f, QEMUTimer *ts)
1045{
1046 uint64_t expire_time;
1047
1048 if (qemu_timer_pending(ts)) {
1049 expire_time = ts->expire_time;
1050 } else {
1051 expire_time = -1;
1052 }
1053 qemu_put_be64(f, expire_time);
1054}
1055
1056void qemu_get_timer(QEMUFile *f, QEMUTimer *ts)
1057{
1058 uint64_t expire_time;
1059
1060 expire_time = qemu_get_be64(f);
1061 if (expire_time != -1) {
1062 qemu_mod_timer(ts, expire_time);
1063 } else {
1064 qemu_del_timer(ts);
1065 }
1066}
1067
1068static void timer_save(QEMUFile *f, void *opaque)
1069{
1070 if (cpu_ticks_enabled) {
1071 hw_error("cannot save state if virtual timers are running");
1072 }
bee8d684
TS		 1073 qemu_put_be64(f, cpu_ticks_offset);
1074 qemu_put_be64(f, ticks_per_sec);
1075 qemu_put_be64(f, cpu_clock_offset);
8a7ddc38
FB		 1076}
1077
1078static int timer_load(QEMUFile *f, void *opaque, int version_id)
1079{
c88676f8 1080 if (version_id != 1 && version_id != 2)
8a7ddc38
FB		 1081 return -EINVAL;
1082 if (cpu_ticks_enabled) {
1083 return -EINVAL;
1084 }
bee8d684
TS		 1085 cpu_ticks_offset=qemu_get_be64(f);
1086 ticks_per_sec=qemu_get_be64(f);
c88676f8 1087 if (version_id == 2) {
bee8d684 1088 cpu_clock_offset=qemu_get_be64(f);
c88676f8 1089 }
8a7ddc38
FB		 1090 return 0;
1091}
1092
50317c7f
AL		 1093static void qemu_event_increment(void);
1094
67b915a5 1095#ifdef _WIN32
b9e82a59
BS		 1096static void CALLBACK host_alarm_handler(UINT uTimerID, UINT uMsg,
1097 DWORD_PTR dwUser, DWORD_PTR dw1,
1098 DWORD_PTR dw2)
67b915a5 1099#else
8a7ddc38 1100static void host_alarm_handler(int host_signum)
67b915a5 1101#endif
8a7ddc38 1102{
02ba45c5
FB		 1103#if 0
1104#define DISP_FREQ 1000
1105 {
1106 static int64_t delta_min = INT64_MAX;
1107 static int64_t delta_max, delta_cum, last_clock, delta, ti;
1108 static int count;
1109 ti = qemu_get_clock(vm_clock);
1110 if (last_clock != 0) {
1111 delta = ti - last_clock;
1112 if (delta < delta_min)
1113 delta_min = delta;
1114 if (delta > delta_max)
1115 delta_max = delta;
1116 delta_cum += delta;
1117 if (++count == DISP_FREQ) {
26a76461 1118 printf("timer: min=%" PRId64 " us max=%" PRId64 " us avg=%" PRId64 " us avg_freq=%0.3f Hz\n",
02ba45c5
FB		 1119 muldiv64(delta_min, 1000000, ticks_per_sec),
1120 muldiv64(delta_max, 1000000, ticks_per_sec),
1121 muldiv64(delta_cum, 1000000 / DISP_FREQ, ticks_per_sec),
1122 (double)ticks_per_sec / ((double)delta_cum / DISP_FREQ));
1123 count = 0;
1124 delta_min = INT64_MAX;
1125 delta_max = 0;
1126 delta_cum = 0;
1127 }
1128 }
1129 last_clock = ti;
1130 }
1131#endif
efe75411 1132 if (alarm_has_dynticks(alarm_timer) ||
2e70f6ef
PB		 1133 (!use_icount &&
1134 qemu_timer_expired(active_timers[QEMU_TIMER_VIRTUAL],
1135 qemu_get_clock(vm_clock))) ||
8a7ddc38
FB		 1136 qemu_timer_expired(active_timers[QEMU_TIMER_REALTIME],
1137 qemu_get_clock(rt_clock))) {
50317c7f 1138 qemu_event_increment();
e332340a 1139 if (alarm_timer) alarm_timer->flags |= ALARM_FLAG_EXPIRED;
d5d08334 1140
d6dc3d42
AL		 1141#ifndef CONFIG_IOTHREAD
1142 if (next_cpu) {
4f8eb8da 1143 /* stop the currently executing cpu because a timer occured */
d6dc3d42 1144 cpu_exit(next_cpu);
4f8eb8da 1145 }
d6dc3d42 1146#endif
43b96858 1147 timer_alarm_pending = 1;
d9f75a4e 1148 qemu_notify_event();
8a7ddc38
FB		 1149 }
1150}
1151
2e70f6ef 1152static int64_t qemu_next_deadline(void)
efe75411 1153{
2e70f6ef 1154 int64_t delta;
efe75411
TS		 1155
1156 if (active_timers[QEMU_TIMER_VIRTUAL]) {
2e70f6ef
PB		 1157 delta = active_timers[QEMU_TIMER_VIRTUAL]->expire_time -
1158 qemu_get_clock(vm_clock);
1159 } else {
1160 /* To avoid problems with overflow limit this to 2^32. */
1161 delta = INT32_MAX;
efe75411
TS		 1162 }
1163
2e70f6ef
PB		 1164 if (delta < 0)
1165 delta = 0;
efe75411 1166
2e70f6ef
PB		 1167 return delta;
1168}
1169
8632fb9a 1170#if defined(__linux__) || defined(_WIN32)
2e70f6ef
PB		 1171static uint64_t qemu_next_deadline_dyntick(void)
1172{
1173 int64_t delta;
1174 int64_t rtdelta;
1175
1176 if (use_icount)
1177 delta = INT32_MAX;
1178 else
1179 delta = (qemu_next_deadline() + 999) / 1000;
1180
1181 if (active_timers[QEMU_TIMER_REALTIME]) {
1182 rtdelta = (active_timers[QEMU_TIMER_REALTIME]->expire_time -
1183 qemu_get_clock(rt_clock))*1000;
1184 if (rtdelta < delta)
1185 delta = rtdelta;
1186 }
1187
1188 if (delta < MIN_TIMER_REARM_US)
1189 delta = MIN_TIMER_REARM_US;
1190
1191 return delta;
efe75411 1192}
8632fb9a 1193#endif
efe75411 1194
fd872598
FB		 1195#ifndef _WIN32
1196
7183b4b4
AL		 1197/* Sets a specific flag */
1198static int fcntl_setfl(int fd, int flag)
1199{
1200 int flags;
1201
1202 flags = fcntl(fd, F_GETFL);
1203 if (flags == -1)
1204 return -errno;
1205
1206 if (fcntl(fd, F_SETFL, flags | flag) == -1)
1207 return -errno;
1208
1209 return 0;
1210}
1211
829309c7
FB		 1212#if defined(__linux__)
1213
fd872598
FB		 1214#define RTC_FREQ 1024
1215
de9a95f0 1216static void enable_sigio_timer(int fd)
c8994013
TS		 1217{
1218 struct sigaction act;
1219
1220 /* timer signal */
1221 sigfillset(&act.sa_mask);
1222 act.sa_flags = 0;
c8994013
TS		 1223 act.sa_handler = host_alarm_handler;
1224
1225 sigaction(SIGIO, &act, NULL);
7183b4b4 1226 fcntl_setfl(fd, O_ASYNC);
c8994013
TS		 1227 fcntl(fd, F_SETOWN, getpid());
1228}
829309c7 1229
c40ec5a9
TS		 1230static int hpet_start_timer(struct qemu_alarm_timer *t)
1231{
1232 struct hpet_info info;
1233 int r, fd;
1234
1235 fd = open("/dev/hpet", O_RDONLY);
1236 if (fd < 0)
1237 return -1;
1238
1239 /* Set frequency */
1240 r = ioctl(fd, HPET_IRQFREQ, RTC_FREQ);
1241 if (r < 0) {
1242 fprintf(stderr, "Could not configure '/dev/hpet' to have a 1024Hz timer. This is not a fatal\n"
1243 "error, but for better emulation accuracy type:\n"
1244 "'echo 1024 > /proc/sys/dev/hpet/max-user-freq' as root.\n");
1245 goto fail;
1246 }
1247
1248 /* Check capabilities */
1249 r = ioctl(fd, HPET_INFO, &info);
1250 if (r < 0)
1251 goto fail;
1252
1253 /* Enable periodic mode */
1254 r = ioctl(fd, HPET_EPI, 0);
1255 if (info.hi_flags && (r < 0))
1256 goto fail;
1257
1258 /* Enable interrupt */
1259 r = ioctl(fd, HPET_IE_ON, 0);
1260 if (r < 0)
1261 goto fail;
1262
1263 enable_sigio_timer(fd);
fcdc2129 1264 t->priv = (void *)(long)fd;
c40ec5a9
TS		 1265
1266 return 0;
1267fail:
1268 close(fd);
1269 return -1;
1270}
1271
1272static void hpet_stop_timer(struct qemu_alarm_timer *t)
1273{
fcdc2129 1274 int fd = (long)t->priv;
c40ec5a9
TS		 1275
1276 close(fd);
1277}
1278
c8994013 1279static int rtc_start_timer(struct qemu_alarm_timer *t)
fd872598 1280{
c8994013 1281 int rtc_fd;
b5a23ad4 1282 unsigned long current_rtc_freq = 0;
c8994013 1283
aeb30be6 1284 TFR(rtc_fd = open("/dev/rtc", O_RDONLY));
fd872598
FB		 1285 if (rtc_fd < 0)
1286 return -1;
b5a23ad4
AZ		 1287 ioctl(rtc_fd, RTC_IRQP_READ, &current_rtc_freq);
1288 if (current_rtc_freq != RTC_FREQ &&
1289 ioctl(rtc_fd, RTC_IRQP_SET, RTC_FREQ) < 0) {
fd872598
FB		 1290 fprintf(stderr, "Could not configure '/dev/rtc' to have a 1024 Hz timer. This is not a fatal\n"
1291 "error, but for better emulation accuracy either use a 2.6 host Linux kernel or\n"
1292 "type 'echo 1024 > /proc/sys/dev/rtc/max-user-freq' as root.\n");
1293 goto fail;
1294 }
1295 if (ioctl(rtc_fd, RTC_PIE_ON, 0) < 0) {
1296 fail:
1297 close(rtc_fd);
1298 return -1;
1299 }
c8994013
TS		 1300
1301 enable_sigio_timer(rtc_fd);
1302
fcdc2129 1303 t->priv = (void *)(long)rtc_fd;
c8994013 1304
fd872598
FB		 1305 return 0;
1306}
1307
c8994013 1308static void rtc_stop_timer(struct qemu_alarm_timer *t)
829309c7 1309{
fcdc2129 1310 int rtc_fd = (long)t->priv;
c8994013
TS		 1311
1312 close(rtc_fd);
829309c7
FB		 1313}
1314
efe75411
TS		 1315static int dynticks_start_timer(struct qemu_alarm_timer *t)
1316{
1317 struct sigevent ev;
1318 timer_t host_timer;
1319 struct sigaction act;
1320
1321 sigfillset(&act.sa_mask);
1322 act.sa_flags = 0;
efe75411
TS		 1323 act.sa_handler = host_alarm_handler;
1324
1325 sigaction(SIGALRM, &act, NULL);
1326
9ed415b2
JCD		 1327 /*
1328 * Initialize ev struct to 0 to avoid valgrind complaining
1329 * about uninitialized data in timer_create call
1330 */
1331 memset(&ev, 0, sizeof(ev));
efe75411
TS		 1332 ev.sigev_value.sival_int = 0;
1333 ev.sigev_notify = SIGEV_SIGNAL;
1334 ev.sigev_signo = SIGALRM;
1335
1336 if (timer_create(CLOCK_REALTIME, &ev, &host_timer)) {
1337 perror("timer_create");
1338
1339 /* disable dynticks */
1340 fprintf(stderr, "Dynamic Ticks disabled\n");
1341
1342 return -1;
1343 }
1344
0399bfe0 1345 t->priv = (void *)(long)host_timer;
efe75411
TS		 1346
1347 return 0;
1348}
1349
1350static void dynticks_stop_timer(struct qemu_alarm_timer *t)
1351{
0399bfe0 1352 timer_t host_timer = (timer_t)(long)t->priv;
efe75411
TS		 1353
1354 timer_delete(host_timer);
1355}
1356
1357static void dynticks_rearm_timer(struct qemu_alarm_timer *t)
1358{
0399bfe0 1359 timer_t host_timer = (timer_t)(long)t->priv;
efe75411
TS		 1360 struct itimerspec timeout;
1361 int64_t nearest_delta_us = INT64_MAX;
1362 int64_t current_us;
1363
1364 if (!active_timers[QEMU_TIMER_REALTIME] &&
1365 !active_timers[QEMU_TIMER_VIRTUAL])
d5d08334 1366 return;
efe75411 1367
2e70f6ef 1368 nearest_delta_us = qemu_next_deadline_dyntick();
efe75411
TS		 1369
1370 /* check whether a timer is already running */
1371 if (timer_gettime(host_timer, &timeout)) {
1372 perror("gettime");
1373 fprintf(stderr, "Internal timer error: aborting\n");
1374 exit(1);
1375 }
1376 current_us = timeout.it_value.tv_sec * 1000000 + timeout.it_value.tv_nsec/1000;
1377 if (current_us && current_us <= nearest_delta_us)
1378 return;
1379
1380 timeout.it_interval.tv_sec = 0;
1381 timeout.it_interval.tv_nsec = 0; /* 0 for one-shot timer */
1382 timeout.it_value.tv_sec = nearest_delta_us / 1000000;
1383 timeout.it_value.tv_nsec = (nearest_delta_us % 1000000) * 1000;
1384 if (timer_settime(host_timer, 0 /* RELATIVE */, &timeout, NULL)) {
1385 perror("settime");
1386 fprintf(stderr, "Internal timer error: aborting\n");
1387 exit(1);
1388 }
1389}
1390
70744b3a 1391#endif /* defined(__linux__) */
231c6586 1392
c8994013
TS		 1393static int unix_start_timer(struct qemu_alarm_timer *t)
1394{
1395 struct sigaction act;
1396 struct itimerval itv;
1397 int err;
1398
1399 /* timer signal */
1400 sigfillset(&act.sa_mask);
1401 act.sa_flags = 0;
c8994013
TS		 1402 act.sa_handler = host_alarm_handler;
1403
1404 sigaction(SIGALRM, &act, NULL);
1405
1406 itv.it_interval.tv_sec = 0;
1407 /* for i386 kernel 2.6 to get 1 ms */
1408 itv.it_interval.tv_usec = 999;
1409 itv.it_value.tv_sec = 0;
1410 itv.it_value.tv_usec = 10 * 1000;
1411
1412 err = setitimer(ITIMER_REAL, &itv, NULL);
1413 if (err)
1414 return -1;
1415
1416 return 0;
1417}
1418
1419static void unix_stop_timer(struct qemu_alarm_timer *t)
1420{
1421 struct itimerval itv;
1422
1423 memset(&itv, 0, sizeof(itv));
1424 setitimer(ITIMER_REAL, &itv, NULL);
1425}
1426
829309c7 1427#endif /* !defined(_WIN32) */
fd872598 1428
f49e58dc 1429
c8994013
TS		 1430#ifdef _WIN32
1431
1432static int win32_start_timer(struct qemu_alarm_timer *t)
1433{
1434 TIMECAPS tc;
1435 struct qemu_alarm_win32 *data = t->priv;
efe75411 1436 UINT flags;
c8994013 1437
c8994013
TS		 1438 memset(&tc, 0, sizeof(tc));
1439 timeGetDevCaps(&tc, sizeof(tc));
1440
1441 if (data->period < tc.wPeriodMin)
1442 data->period = tc.wPeriodMin;
1443
1444 timeBeginPeriod(data->period);
1445
efe75411
TS		 1446 flags = TIME_CALLBACK_FUNCTION;
1447 if (alarm_has_dynticks(t))
1448 flags |= TIME_ONESHOT;
1449 else
1450 flags |= TIME_PERIODIC;
1451
c8994013
TS		 1452 data->timerId = timeSetEvent(1, // interval (ms)
1453 data->period, // resolution
1454 host_alarm_handler, // function
1455 (DWORD)t, // parameter
efe75411 1456 flags);
c8994013
TS		 1457
1458 if (!data->timerId) {
1459 perror("Failed to initialize win32 alarm timer");
c8994013 1460 timeEndPeriod(data->period);
c8994013
TS		 1461 return -1;
1462 }
1463
c8994013
TS		 1464 return 0;
1465}
1466
1467static void win32_stop_timer(struct qemu_alarm_timer *t)
1468{
1469 struct qemu_alarm_win32 *data = t->priv;
1470
1471 timeKillEvent(data->timerId);
1472 timeEndPeriod(data->period);
c8994013
TS		 1473}
1474
efe75411
TS		 1475static void win32_rearm_timer(struct qemu_alarm_timer *t)
1476{
1477 struct qemu_alarm_win32 *data = t->priv;
1478 uint64_t nearest_delta_us;
1479
1480 if (!active_timers[QEMU_TIMER_REALTIME] &&
1481 !active_timers[QEMU_TIMER_VIRTUAL])
d5d08334 1482 return;
efe75411 1483
2e70f6ef 1484 nearest_delta_us = qemu_next_deadline_dyntick();
efe75411
TS		 1485 nearest_delta_us /= 1000;
1486
1487 timeKillEvent(data->timerId);
1488
1489 data->timerId = timeSetEvent(1,
1490 data->period,
1491 host_alarm_handler,
1492 (DWORD)t,
1493 TIME_ONESHOT | TIME_PERIODIC);
1494
1495 if (!data->timerId) {
1496 perror("Failed to re-arm win32 alarm timer");
1497
1498 timeEndPeriod(data->period);
efe75411
TS		 1499 exit(1);
1500 }
1501}
1502
c8994013
TS		 1503#endif /* _WIN32 */
1504
7183b4b4 1505static int init_timer_alarm(void)
8a7ddc38 1506{
223f0d72 1507 struct qemu_alarm_timer *t = NULL;
c8994013 1508 int i, err = -1;
f49e58dc 1509
c8994013
TS		 1510 for (i = 0; alarm_timers[i].name; i++) {
1511 t = &alarm_timers[i];
1512
c8994013
TS		 1513 err = t->start(t);
1514 if (!err)
1515 break;
67b915a5 1516 }
fd872598 1517
c8994013 1518 if (err) {
7183b4b4
AL		 1519 err = -ENOENT;
1520 goto fail;
67b915a5 1521 }
c8994013
TS		 1522
1523 alarm_timer = t;
7183b4b4 1524
6abfbd79 1525 return 0;
7183b4b4
AL		 1526
1527fail:
7183b4b4 1528 return err;
8a7ddc38
FB		 1529}
1530
9596ebb7 1531static void quit_timers(void)
40c3bac3 1532{
c8994013
TS		 1533 alarm_timer->stop(alarm_timer);
1534 alarm_timer = NULL;
40c3bac3
FB		 1535}
1536
f6503059
AZ		 1537/***********************************************************/
1538/* host time/date access */
1539void qemu_get_timedate(struct tm *tm, int offset)
1540{
1541 time_t ti;
1542 struct tm *ret;
1543
1544 time(&ti);
1545 ti += offset;
1546 if (rtc_date_offset == -1) {
1547 if (rtc_utc)
1548 ret = gmtime(&ti);
1549 else
1550 ret = localtime(&ti);
1551 } else {
1552 ti -= rtc_date_offset;
1553 ret = gmtime(&ti);
1554 }
1555
1556 memcpy(tm, ret, sizeof(struct tm));
1557}
1558
1559int qemu_timedate_diff(struct tm *tm)
1560{
1561 time_t seconds;
1562
1563 if (rtc_date_offset == -1)
1564 if (rtc_utc)
1565 seconds = mktimegm(tm);
1566 else
1567 seconds = mktime(tm);
1568 else
1569 seconds = mktimegm(tm) + rtc_date_offset;
1570
1571 return seconds - time(NULL);
1572}
1573
fd1dff4b 1574#ifdef _WIN32
fd1dff4b
FB		 1575static void socket_cleanup(void)
1576{
1577 WSACleanup();
1578}
82c643ff 1579
fd1dff4b
FB		 1580static int socket_init(void)
1581{
1582 WSADATA Data;
1583 int ret, err;
1584
1585 ret = WSAStartup(MAKEWORD(2,2), &Data);
1586 if (ret != 0) {
1587 err = WSAGetLastError();
1588 fprintf(stderr, "WSAStartup: %d\n", err);
1589 return -1;
1590 }
1591 atexit(socket_cleanup);
1592 return 0;
1593}
64b7b733
AJ		 1594#endif
1595
1ae26a18
AZ		 1596/***********************************************************/
1597/* Bluetooth support */
1598static int nb_hcis;
1599static int cur_hci;
1600static struct HCIInfo *hci_table[MAX_NICS];
dc72ac14 1601
1ae26a18
AZ		 1602static struct bt_vlan_s {
1603 struct bt_scatternet_s net;
1604 int id;
1605 struct bt_vlan_s *next;
1606} *first_bt_vlan;
1607
1608/* find or alloc a new bluetooth "VLAN" */
674bb261 1609static struct bt_scatternet_s *qemu_find_bt_vlan(int id)
1ae26a18
AZ		 1610{
1611 struct bt_vlan_s **pvlan, *vlan;
1612 for (vlan = first_bt_vlan; vlan != NULL; vlan = vlan->next) {
1613 if (vlan->id == id)
1614 return &vlan->net;
1615 }
1616 vlan = qemu_mallocz(sizeof(struct bt_vlan_s));
1617 vlan->id = id;
1618 pvlan = &first_bt_vlan;
1619 while (*pvlan != NULL)
1620 pvlan = &(*pvlan)->next;
1621 *pvlan = vlan;
1622 return &vlan->net;
1623}
1624
1625static void null_hci_send(struct HCIInfo *hci, const uint8_t *data, int len)
1626{
1627}
1628
1629static int null_hci_addr_set(struct HCIInfo *hci, const uint8_t *bd_addr)
1630{
1631 return -ENOTSUP;
1632}
1633
1634static struct HCIInfo null_hci = {
1635 .cmd_send = null_hci_send,
1636 .sco_send = null_hci_send,
1637 .acl_send = null_hci_send,
1638 .bdaddr_set = null_hci_addr_set,
1639};
1640
1641struct HCIInfo *qemu_next_hci(void)
1642{
1643 if (cur_hci == nb_hcis)
1644 return &null_hci;
1645
1646 return hci_table[cur_hci++];
1647}
1648
dc72ac14
AZ		 1649static struct HCIInfo *hci_init(const char *str)
1650{
1651 char *endp;
1652 struct bt_scatternet_s *vlan = 0;
1653
1654 if (!strcmp(str, "null"))
1655 /* null */
1656 return &null_hci;
1657 else if (!strncmp(str, "host", 4) && (str[4] == '\0' || str[4] == ':'))
1658 /* host[:hciN] */
1659 return bt_host_hci(str[4] ? str + 5 : "hci0");
1660 else if (!strncmp(str, "hci", 3)) {
1661 /* hci[,vlan=n] */
1662 if (str[3]) {
1663 if (!strncmp(str + 3, ",vlan=", 6)) {
1664 vlan = qemu_find_bt_vlan(strtol(str + 9, &endp, 0));
1665 if (*endp)
1666 vlan = 0;
1667 }
1668 } else
1669 vlan = qemu_find_bt_vlan(0);
1670 if (vlan)
1671 return bt_new_hci(vlan);
1672 }
1673
1674 fprintf(stderr, "qemu: Unknown bluetooth HCI `%s'.\n", str);
1675
1676 return 0;
1677}
1678
1679static int bt_hci_parse(const char *str)
1680{
1681 struct HCIInfo *hci;
1682 bdaddr_t bdaddr;
1683
1684 if (nb_hcis >= MAX_NICS) {
1685 fprintf(stderr, "qemu: Too many bluetooth HCIs (max %i).\n", MAX_NICS);
1686 return -1;
1687 }
1688
1689 hci = hci_init(str);
1690 if (!hci)
1691 return -1;
1692
1693 bdaddr.b[0] = 0x52;
1694 bdaddr.b[1] = 0x54;
1695 bdaddr.b[2] = 0x00;
1696 bdaddr.b[3] = 0x12;
1697 bdaddr.b[4] = 0x34;
1698 bdaddr.b[5] = 0x56 + nb_hcis;
1699 hci->bdaddr_set(hci, bdaddr.b);
1700
1701 hci_table[nb_hcis++] = hci;
1702
1703 return 0;
1704}
1705
1706static void bt_vhci_add(int vlan_id)
1707{
1708 struct bt_scatternet_s *vlan = qemu_find_bt_vlan(vlan_id);
1709
1710 if (!vlan->slave)
1711 fprintf(stderr, "qemu: warning: adding a VHCI to "
1712 "an empty scatternet %i\n", vlan_id);
1713
1714 bt_vhci_init(bt_new_hci(vlan));
1715}
1716
1717static struct bt_device_s *bt_device_add(const char *opt)
1718{
1719 struct bt_scatternet_s *vlan;
1720 int vlan_id = 0;
1721 char *endp = strstr(opt, ",vlan=");
1722 int len = (endp ? endp - opt : strlen(opt)) + 1;
1723 char devname[10];
1724
1725 pstrcpy(devname, MIN(sizeof(devname), len), opt);
1726
1727 if (endp) {
1728 vlan_id = strtol(endp + 6, &endp, 0);
1729 if (*endp) {
1730 fprintf(stderr, "qemu: unrecognised bluetooth vlan Id\n");
1731 return 0;
1732 }
1733 }
1734
1735 vlan = qemu_find_bt_vlan(vlan_id);
1736
1737 if (!vlan->slave)
1738 fprintf(stderr, "qemu: warning: adding a slave device to "
1739 "an empty scatternet %i\n", vlan_id);
1740
1741 if (!strcmp(devname, "keyboard"))
1742 return bt_keyboard_init(vlan);
1743
1744 fprintf(stderr, "qemu: unsupported bluetooth device `%s'\n", devname);
1745 return 0;
1746}
1747
1748static int bt_parse(const char *opt)
1749{
1750 const char *endp, *p;
1751 int vlan;
1752
1753 if (strstart(opt, "hci", &endp)) {
1754 if (!*endp || *endp == ',') {
1755 if (*endp)
1756 if (!strstart(endp, ",vlan=", 0))
1757 opt = endp + 1;
1758
1759 return bt_hci_parse(opt);
1760 }
1761 } else if (strstart(opt, "vhci", &endp)) {
1762 if (!*endp || *endp == ',') {
1763 if (*endp) {
1764 if (strstart(endp, ",vlan=", &p)) {
1765 vlan = strtol(p, (char **) &endp, 0);
1766 if (*endp) {
1767 fprintf(stderr, "qemu: bad scatternet '%s'\n", p);
1768 return 1;
1769 }
1770 } else {
1771 fprintf(stderr, "qemu: bad parameter '%s'\n", endp + 1);
1772 return 1;
1773 }
1774 } else
1775 vlan = 0;
1776
1777 bt_vhci_add(vlan);
1778 return 0;
1779 }
1780 } else if (strstart(opt, "device:", &endp))
1781 return !bt_device_add(endp);
1782
1783 fprintf(stderr, "qemu: bad bluetooth parameter '%s'\n", opt);
1784 return 1;
1785}
1786
1ae26a18
AZ		 1787/***********************************************************/
1788/* QEMU Block devices */
1789
609497ab 1790#define HD_ALIAS "index=%d,media=disk"
e4bcb14c 1791#define CDROM_ALIAS "index=2,media=cdrom"
e4bcb14c 1792#define FD_ALIAS "index=%d,if=floppy"
609497ab
AZ		 1793#define PFLASH_ALIAS "if=pflash"
1794#define MTD_ALIAS "if=mtd"
9d413d1d 1795#define SD_ALIAS "index=0,if=sd"
e4bcb14c 1796
9dfd7c7a 1797QemuOpts *drive_add(const char *file, const char *fmt, ...)
e4bcb14c
TS		 1798{
1799 va_list ap;
9dfd7c7a
GH		 1800 char optstr[1024];
1801 QemuOpts *opts;
e4bcb14c 1802
e4bcb14c 1803 va_start(ap, fmt);
9dfd7c7a 1804 vsnprintf(optstr, sizeof(optstr), fmt, ap);
e4bcb14c
TS		 1805 va_end(ap);
1806
7282a033 1807 opts = qemu_opts_parse(&qemu_drive_opts, optstr, NULL);
9dfd7c7a
GH		 1808 if (!opts) {
1809 fprintf(stderr, "%s: huh? duplicate? (%s)\n",
1810 __FUNCTION__, optstr);
1811 return NULL;
1812 }
1813 if (file)
1814 qemu_opt_set(opts, "file", file);
1815 return opts;
b01b1111
AL		 1816}
1817
751c6a17 1818DriveInfo *drive_get(BlockInterfaceType type, int bus, int unit)
e4bcb14c 1819{
751c6a17 1820 DriveInfo *dinfo;
e4bcb14c
TS		 1821
1822 /* seek interface, bus and unit */
1823
751c6a17
GH		 1824 TAILQ_FOREACH(dinfo, &drives, next) {
1825 if (dinfo->type == type &&
1826 dinfo->bus == bus &&
1827 dinfo->unit == unit)
1828 return dinfo;
1829 }
e4bcb14c 1830
751c6a17 1831 return NULL;
e4bcb14c
TS		 1832}
1833
2e810b36 1834DriveInfo *drive_get_by_id(const char *id)
1dae12e6
GH		 1835{
1836 DriveInfo *dinfo;
1837
1838 TAILQ_FOREACH(dinfo, &drives, next) {
1839 if (strcmp(id, dinfo->id))
1840 continue;
1841 return dinfo;
1842 }
1843 return NULL;
1844}
1845
f60d39bc 1846int drive_get_max_bus(BlockInterfaceType type)
e4bcb14c
TS		 1847{
1848 int max_bus;
751c6a17 1849 DriveInfo *dinfo;
e4bcb14c
TS		 1850
1851 max_bus = -1;
751c6a17
GH		 1852 TAILQ_FOREACH(dinfo, &drives, next) {
1853 if(dinfo->type == type &&
1854 dinfo->bus > max_bus)
1855 max_bus = dinfo->bus;
e4bcb14c
TS		 1856 }
1857 return max_bus;
1858}
1859
fa879c64
AL		 1860const char *drive_get_serial(BlockDriverState *bdrv)
1861{
751c6a17 1862 DriveInfo *dinfo;
fa879c64 1863
751c6a17
GH		 1864 TAILQ_FOREACH(dinfo, &drives, next) {
1865 if (dinfo->bdrv == bdrv)
1866 return dinfo->serial;
1867 }
fa879c64
AL		 1868
1869 return "\0";
1870}
1871
428c5705
AL		 1872BlockInterfaceErrorAction drive_get_onerror(BlockDriverState *bdrv)
1873{
751c6a17 1874 DriveInfo *dinfo;
428c5705 1875
751c6a17
GH		 1876 TAILQ_FOREACH(dinfo, &drives, next) {
1877 if (dinfo->bdrv == bdrv)
1878 return dinfo->onerror;
1879 }
428c5705 1880
cdad4bd8 1881 return BLOCK_ERR_STOP_ENOSPC;
428c5705
AL		 1882}
1883
a1620fac
AJ		 1884static void bdrv_format_print(void *opaque, const char *name)
1885{
1886 fprintf(stderr, " %s", name);
1887}
1888
b01b1111
AL		 1889void drive_uninit(BlockDriverState *bdrv)
1890{
751c6a17 1891 DriveInfo *dinfo;
b01b1111 1892
751c6a17
GH		 1893 TAILQ_FOREACH(dinfo, &drives, next) {
1894 if (dinfo->bdrv != bdrv)
1895 continue;
9dfd7c7a 1896 qemu_opts_del(dinfo->opts);
751c6a17
GH		 1897 TAILQ_REMOVE(&drives, dinfo, next);
1898 qemu_free(dinfo);
1899 break;
1900 }
b01b1111
AL		 1901}
1902
9dfd7c7a 1903DriveInfo *drive_init(QemuOpts *opts, void *opaque,
751c6a17 1904 int *fatal_error)
e4bcb14c 1905{
9dfd7c7a
GH		 1906 const char *buf;
1907 const char *file = NULL;
c8522bdf 1908 char devname[128];
9dfd7c7a 1909 const char *serial;
c8522bdf 1910 const char *mediastr = "";
f60d39bc 1911 BlockInterfaceType type;
e4bcb14c
TS		 1912 enum { MEDIA_DISK, MEDIA_CDROM } media;
1913 int bus_id, unit_id;
1914 int cyls, heads, secs, translation;
1e72d3b7 1915 BlockDriver *drv = NULL;
4d73cd3b 1916 QEMUMachine *machine = opaque;
e4bcb14c
TS		 1917 int max_devs;
1918 int index;
33f00271 1919 int cache;
5c6c3a6c 1920 int aio = 0;
428c5705 1921 int bdrv_flags, onerror;
c2cc47a4 1922 const char *devaddr;
751c6a17 1923 DriveInfo *dinfo;
9dfd7c7a 1924 int snapshot = 0;
e4bcb14c 1925
9dfd7c7a 1926 *fatal_error = 1;
e4bcb14c 1927
e4bcb14c 1928 translation = BIOS_ATA_TRANSLATION_AUTO;
0aa217e4 1929 cache = 1;
e4bcb14c 1930
4d007814 1931 if (machine && machine->use_scsi) {
f60d39bc 1932 type = IF_SCSI;
e4bcb14c 1933 max_devs = MAX_SCSI_DEVS;
363a37d5 1934 pstrcpy(devname, sizeof(devname), "scsi");
e4bcb14c 1935 } else {
f60d39bc 1936 type = IF_IDE;
e4bcb14c 1937 max_devs = MAX_IDE_DEVS;
363a37d5 1938 pstrcpy(devname, sizeof(devname), "ide");
e4bcb14c
TS		 1939 }
1940 media = MEDIA_DISK;
1941
1942 /* extract parameters */
9dfd7c7a
GH		 1943 bus_id = qemu_opt_get_number(opts, "bus", 0);
1944 unit_id = qemu_opt_get_number(opts, "unit", -1);
1945 index = qemu_opt_get_number(opts, "index", -1);
e4bcb14c 1946
9dfd7c7a
GH		 1947 cyls = qemu_opt_get_number(opts, "cyls", 0);
1948 heads = qemu_opt_get_number(opts, "heads", 0);
1949 secs = qemu_opt_get_number(opts, "secs", 0);
e4bcb14c 1950
9dfd7c7a 1951 snapshot = qemu_opt_get_bool(opts, "snapshot", 0);
e4bcb14c 1952
9dfd7c7a
GH		 1953 file = qemu_opt_get(opts, "file");
1954 serial = qemu_opt_get(opts, "serial");
1955
1956 if ((buf = qemu_opt_get(opts, "if")) != NULL) {
ae45d369 1957 pstrcpy(devname, sizeof(devname), buf);
e4bcb14c 1958 if (!strcmp(buf, "ide")) {
f60d39bc 1959 type = IF_IDE;
e4bcb14c
TS		 1960 max_devs = MAX_IDE_DEVS;
1961 } else if (!strcmp(buf, "scsi")) {
f60d39bc 1962 type = IF_SCSI;
e4bcb14c
TS		 1963 max_devs = MAX_SCSI_DEVS;
1964 } else if (!strcmp(buf, "floppy")) {
f60d39bc 1965 type = IF_FLOPPY;
e4bcb14c
TS		 1966 max_devs = 0;
1967 } else if (!strcmp(buf, "pflash")) {
f60d39bc 1968 type = IF_PFLASH;
e4bcb14c
TS		 1969 max_devs = 0;
1970 } else if (!strcmp(buf, "mtd")) {
f60d39bc 1971 type = IF_MTD;
e4bcb14c
TS		 1972 max_devs = 0;
1973 } else if (!strcmp(buf, "sd")) {
f60d39bc 1974 type = IF_SD;
e4bcb14c 1975 max_devs = 0;
6e02c38d
AL		 1976 } else if (!strcmp(buf, "virtio")) {
1977 type = IF_VIRTIO;
1978 max_devs = 0;
62d23efa
AL		 1979 } else if (!strcmp(buf, "xen")) {
1980 type = IF_XEN;
1981 max_devs = 0;
a8659e90
GH		 1982 } else if (!strcmp(buf, "none")) {
1983 type = IF_NONE;
1984 max_devs = 0;
62d23efa 1985 } else {
9dfd7c7a 1986 fprintf(stderr, "qemu: unsupported bus type '%s'\n", buf);
751c6a17 1987 return NULL;
e4bcb14c
TS		 1988 }
1989 }
1990
e4bcb14c
TS		 1991 if (cyls || heads || secs) {
1992 if (cyls < 1 || cyls > 16383) {
9dfd7c7a 1993 fprintf(stderr, "qemu: '%s' invalid physical cyls number\n", buf);
751c6a17 1994 return NULL;
e4bcb14c
TS		 1995 }
1996 if (heads < 1 || heads > 16) {
9dfd7c7a 1997 fprintf(stderr, "qemu: '%s' invalid physical heads number\n", buf);
751c6a17 1998 return NULL;
e4bcb14c
TS		 1999 }
2000 if (secs < 1 || secs > 63) {
9dfd7c7a 2001 fprintf(stderr, "qemu: '%s' invalid physical secs number\n", buf);
751c6a17 2002 return NULL;
e4bcb14c
TS		 2003 }
2004 }
2005
9dfd7c7a 2006 if ((buf = qemu_opt_get(opts, "trans")) != NULL) {
e4bcb14c
TS		 2007 if (!cyls) {
2008 fprintf(stderr,
2009 "qemu: '%s' trans must be used with cyls,heads and secs\n",
9dfd7c7a 2010 buf);
751c6a17 2011 return NULL;
e4bcb14c
TS		 2012 }
2013 if (!strcmp(buf, "none"))
2014 translation = BIOS_ATA_TRANSLATION_NONE;
2015 else if (!strcmp(buf, "lba"))
2016 translation = BIOS_ATA_TRANSLATION_LBA;
2017 else if (!strcmp(buf, "auto"))
2018 translation = BIOS_ATA_TRANSLATION_AUTO;
2019 else {
9dfd7c7a 2020 fprintf(stderr, "qemu: '%s' invalid translation type\n", buf);
751c6a17 2021 return NULL;
e4bcb14c
TS		 2022 }
2023 }
2024
9dfd7c7a 2025 if ((buf = qemu_opt_get(opts, "media")) != NULL) {
e4bcb14c
TS		 2026 if (!strcmp(buf, "disk")) {
2027 media = MEDIA_DISK;
2028 } else if (!strcmp(buf, "cdrom")) {
2029 if (cyls || secs || heads) {
2030 fprintf(stderr,
9dfd7c7a 2031 "qemu: '%s' invalid physical CHS format\n", buf);
751c6a17 2032 return NULL;
e4bcb14c
TS		 2033 }
2034 media = MEDIA_CDROM;
2035 } else {
9dfd7c7a 2036 fprintf(stderr, "qemu: '%s' invalid media\n", buf);
751c6a17 2037 return NULL;
e4bcb14c
TS		 2038 }
2039 }
2040
9dfd7c7a 2041 if ((buf = qemu_opt_get(opts, "cache")) != NULL) {
9f7965c7 2042 if (!strcmp(buf, "off") || !strcmp(buf, "none"))
33f00271 2043 cache = 0;
9f7965c7 2044 else if (!strcmp(buf, "writethrough"))
33f00271 2045 cache = 1;
9f7965c7
AL		 2046 else if (!strcmp(buf, "writeback"))
2047 cache = 2;
33f00271
AZ		 2048 else {
2049 fprintf(stderr, "qemu: invalid cache option\n");
751c6a17 2050 return NULL;
33f00271
AZ		 2051 }
2052 }
2053
5c6c3a6c
CH		 2054#ifdef CONFIG_LINUX_AIO
2055 if ((buf = qemu_opt_get(opts, "aio")) != NULL) {
2056 if (!strcmp(buf, "threads"))
2057 aio = 0;
2058 else if (!strcmp(buf, "native"))
2059 aio = 1;
2060 else {
2061 fprintf(stderr, "qemu: invalid aio option\n");
2062 return NULL;
2063 }
2064 }
2065#endif
2066
9dfd7c7a 2067 if ((buf = qemu_opt_get(opts, "format")) != NULL) {
a1620fac
AJ		 2068 if (strcmp(buf, "?") == 0) {
2069 fprintf(stderr, "qemu: Supported formats:");
2070 bdrv_iterate_format(bdrv_format_print, NULL);
2071 fprintf(stderr, "\n");
751c6a17 2072 return NULL;
a1620fac 2073 }
1e72d3b7
AJ		 2074 drv = bdrv_find_format(buf);
2075 if (!drv) {
2076 fprintf(stderr, "qemu: '%s' invalid format\n", buf);
751c6a17 2077 return NULL;
1e72d3b7
AJ		 2078 }
2079 }
2080
cdad4bd8 2081 onerror = BLOCK_ERR_STOP_ENOSPC;
9dfd7c7a 2082 if ((buf = qemu_opt_get(opts, "werror")) != NULL) {
869a5c6d 2083 if (type != IF_IDE && type != IF_SCSI && type != IF_VIRTIO) {
ea8a5d7f 2084 fprintf(stderr, "werror is no supported by this format\n");
751c6a17 2085 return NULL;
428c5705
AL		 2086 }
2087 if (!strcmp(buf, "ignore"))
2088 onerror = BLOCK_ERR_IGNORE;
2089 else if (!strcmp(buf, "enospc"))
2090 onerror = BLOCK_ERR_STOP_ENOSPC;
2091 else if (!strcmp(buf, "stop"))
2092 onerror = BLOCK_ERR_STOP_ANY;
2093 else if (!strcmp(buf, "report"))
2094 onerror = BLOCK_ERR_REPORT;
2095 else {
2096 fprintf(stderr, "qemu: '%s' invalid write error action\n", buf);
751c6a17 2097 return NULL;
428c5705
AL		 2098 }
2099 }
2100
9dfd7c7a 2101 if ((devaddr = qemu_opt_get(opts, "addr")) != NULL) {
c2cc47a4 2102 if (type != IF_VIRTIO) {
9dfd7c7a 2103 fprintf(stderr, "addr is not supported\n");
751c6a17 2104 return NULL;
c2cc47a4 2105 }
c2cc47a4
MA		 2106 }
2107
e4bcb14c
TS		 2108 /* compute bus and unit according index */
2109
2110 if (index != -1) {
2111 if (bus_id != 0 || unit_id != -1) {
2112 fprintf(stderr,
9dfd7c7a 2113 "qemu: index cannot be used with bus and unit\n");
751c6a17 2114 return NULL;
e4bcb14c
TS		 2115 }
2116 if (max_devs == 0)
2117 {
2118 unit_id = index;
2119 bus_id = 0;
2120 } else {
2121 unit_id = index % max_devs;
2122 bus_id = index / max_devs;
2123 }
2124 }
2125
2126 /* if user doesn't specify a unit_id,
2127 * try to find the first free
2128 */
2129
2130 if (unit_id == -1) {
2131 unit_id = 0;
751c6a17 2132 while (drive_get(type, bus_id, unit_id) != NULL) {
e4bcb14c
TS		 2133 unit_id++;
2134 if (max_devs && unit_id >= max_devs) {
2135 unit_id -= max_devs;
2136 bus_id++;
2137 }
2138 }
2139 }
2140
2141 /* check unit id */
2142
2143 if (max_devs && unit_id >= max_devs) {
9dfd7c7a
GH		 2144 fprintf(stderr, "qemu: unit %d too big (max is %d)\n",
2145 unit_id, max_devs - 1);
751c6a17 2146 return NULL;
e4bcb14c
TS		 2147 }
2148
2149 /*
2150 * ignore multiple definitions
2151 */
2152
751c6a17
GH		 2153 if (drive_get(type, bus_id, unit_id) != NULL) {
2154 *fatal_error = 0;
2155 return NULL;
2156 }
e4bcb14c
TS		 2157
2158 /* init */
2159
751c6a17 2160 dinfo = qemu_mallocz(sizeof(*dinfo));
e23d9c4d 2161 if ((buf = qemu_opts_id(opts)) != NULL) {
9dfd7c7a
GH		 2162 dinfo->id = qemu_strdup(buf);
2163 } else {
1dae12e6 2164 /* no id supplied -> create one */
9dfd7c7a 2165 dinfo->id = qemu_mallocz(32);
1dae12e6
GH		 2166 if (type == IF_IDE || type == IF_SCSI)
2167 mediastr = (media == MEDIA_CDROM) ? "-cd" : "-hd";
2168 if (max_devs)
9dfd7c7a 2169 snprintf(dinfo->id, 32, "%s%i%s%i",
1dae12e6
GH		 2170 devname, bus_id, mediastr, unit_id);
2171 else
9dfd7c7a 2172 snprintf(dinfo->id, 32, "%s%s%i",
1dae12e6
GH		 2173 devname, mediastr, unit_id);
2174 }
1dae12e6 2175 dinfo->bdrv = bdrv_new(dinfo->id);
751c6a17
GH		 2176 dinfo->devaddr = devaddr;
2177 dinfo->type = type;
2178 dinfo->bus = bus_id;
2179 dinfo->unit = unit_id;
2180 dinfo->onerror = onerror;
9dfd7c7a
GH		 2181 dinfo->opts = opts;
2182 if (serial)
2183 strncpy(dinfo->serial, serial, sizeof(serial));
751c6a17 2184 TAILQ_INSERT_TAIL(&drives, dinfo, next);
e4bcb14c 2185
f60d39bc 2186 switch(type) {
e4bcb14c
TS		 2187 case IF_IDE:
2188 case IF_SCSI:
62d23efa 2189 case IF_XEN:
e4bcb14c
TS		 2190 switch(media) {
2191 case MEDIA_DISK:
2192 if (cyls != 0) {
1dae12e6
GH		 2193 bdrv_set_geometry_hint(dinfo->bdrv, cyls, heads, secs);
2194 bdrv_set_translation_hint(dinfo->bdrv, translation);
e4bcb14c
TS		 2195 }
2196 break;
2197 case MEDIA_CDROM:
1dae12e6 2198 bdrv_set_type_hint(dinfo->bdrv, BDRV_TYPE_CDROM);
e4bcb14c
TS		 2199 break;
2200 }
2201 break;
2202 case IF_SD:
2203 /* FIXME: This isn't really a floppy, but it's a reasonable
2204 approximation. */
2205 case IF_FLOPPY:
1dae12e6 2206 bdrv_set_type_hint(dinfo->bdrv, BDRV_TYPE_FLOPPY);
e4bcb14c
TS		 2207 break;
2208 case IF_PFLASH:
2209 case IF_MTD:
a8659e90 2210 case IF_NONE:
e4bcb14c 2211 break;
d176c495
GH		 2212 case IF_VIRTIO:
2213 /* add virtio block device */
2214 opts = qemu_opts_create(&qemu_device_opts, NULL, 0);
2215 qemu_opt_set(opts, "driver", "virtio-blk-pci");
2216 qemu_opt_set(opts, "drive", dinfo->id);
2217 if (devaddr)
2218 qemu_opt_set(opts, "addr", devaddr);
2219 break;
aae9460e
PB		 2220 case IF_COUNT:
2221 abort();
e4bcb14c 2222 }
9dfd7c7a 2223 if (!file) {
751c6a17
GH		 2224 *fatal_error = 0;
2225 return NULL;
2226 }
33f00271 2227 bdrv_flags = 0;
9f7965c7 2228 if (snapshot) {
33f00271 2229 bdrv_flags |= BDRV_O_SNAPSHOT;
9f7965c7
AL		 2230 cache = 2; /* always use write-back with snapshot */
2231 }
2232 if (cache == 0) /* no caching */
2233 bdrv_flags |= BDRV_O_NOCACHE;
2234 else if (cache == 2) /* write-back */
2235 bdrv_flags |= BDRV_O_CACHE_WB;
5c6c3a6c
CH		 2236
2237 if (aio == 1) {
2238 bdrv_flags |= BDRV_O_NATIVE_AIO;
2239 } else {
2240 bdrv_flags &= ~BDRV_O_NATIVE_AIO;
2241 }
2242
1dae12e6 2243 if (bdrv_open2(dinfo->bdrv, file, bdrv_flags, drv) < 0) {
e4bcb14c
TS		 2244 fprintf(stderr, "qemu: could not open disk image %s\n",
2245 file);
751c6a17 2246 return NULL;
e4bcb14c 2247 }
5c6c3a6c 2248
1dae12e6 2249 if (bdrv_key_required(dinfo->bdrv))
c0f4ce77 2250 autostart = 0;
751c6a17
GH		 2251 *fatal_error = 0;
2252 return dinfo;
e4bcb14c
TS		 2253}
2254
9dfd7c7a
GH		 2255static int drive_init_func(QemuOpts *opts, void *opaque)
2256{
2257 QEMUMachine *machine = opaque;
2258 int fatal_error = 0;
2259
2260 if (drive_init(opts, machine, &fatal_error) == NULL) {
2261 if (fatal_error)
2262 return 1;
2263 }
2264 return 0;
2265}
2266
2267static int drive_enable_snapshot(QemuOpts *opts, void *opaque)
2268{
2269 if (NULL == qemu_opt_get(opts, "snapshot")) {
2270 qemu_opt_set(opts, "snapshot", "on");
2271 }
2272 return 0;
2273}
2274
76e30d0f
JK		 2275void qemu_register_boot_set(QEMUBootSetHandler *func, void *opaque)
2276{
2277 boot_set_handler = func;
2278 boot_set_opaque = opaque;
2279}
2280
2281int qemu_boot_set(const char *boot_devices)
2282{
2283 if (!boot_set_handler) {
2284 return -EINVAL;
2285 }
2286 return boot_set_handler(boot_set_opaque, boot_devices);
2287}
2288
ef3adf68
JK		 2289static int parse_bootdevices(char *devices)
2290{
2291 /* We just do some generic consistency checks */
2292 const char *p;
2293 int bitmap = 0;
2294
2295 for (p = devices; *p != '\0'; p++) {
2296 /* Allowed boot devices are:
2297 * a-b: floppy disk drives
2298 * c-f: IDE disk drives
2299 * g-m: machine implementation dependant drives
2300 * n-p: network devices
2301 * It's up to each machine implementation to check if the given boot
2302 * devices match the actual hardware implementation and firmware
2303 * features.
2304 */
2305 if (*p < 'a' || *p > 'p') {
2306 fprintf(stderr, "Invalid boot device '%c'\n", *p);
2307 exit(1);
2308 }
2309 if (bitmap & (1 << (*p - 'a'))) {
2310 fprintf(stderr, "Boot device '%c' was given twice\n", *p);
2311 exit(1);
2312 }
2313 bitmap |= 1 << (*p - 'a');
2314 }
2315 return bitmap;
2316}
2317
e0f084bf
JK		 2318static void restore_boot_devices(void *opaque)
2319{
2320 char *standard_boot_devices = opaque;
2321
2322 qemu_boot_set(standard_boot_devices);
2323
2324 qemu_unregister_reset(restore_boot_devices, standard_boot_devices);
2325 qemu_free(standard_boot_devices);
2326}
2327
268a362c
AL		 2328static void numa_add(const char *optarg)
2329{
2330 char option[128];
2331 char *endptr;
2332 unsigned long long value, endvalue;
2333 int nodenr;
2334
2335 optarg = get_opt_name(option, 128, optarg, ',') + 1;
2336 if (!strcmp(option, "node")) {
2337 if (get_param_value(option, 128, "nodeid", optarg) == 0) {
2338 nodenr = nb_numa_nodes;
2339 } else {
2340 nodenr = strtoull(option, NULL, 10);
2341 }
2342
2343 if (get_param_value(option, 128, "mem", optarg) == 0) {
2344 node_mem[nodenr] = 0;
2345 } else {
2346 value = strtoull(option, &endptr, 0);
2347 switch (*endptr) {
2348 case 0: case 'M': case 'm':
2349 value <<= 20;
2350 break;
2351 case 'G': case 'g':
2352 value <<= 30;
2353 break;
2354 }
2355 node_mem[nodenr] = value;
2356 }
2357 if (get_param_value(option, 128, "cpus", optarg) == 0) {
2358 node_cpumask[nodenr] = 0;
2359 } else {
2360 value = strtoull(option, &endptr, 10);
2361 if (value >= 64) {
2362 value = 63;
2363 fprintf(stderr, "only 64 CPUs in NUMA mode supported.\n");
2364 } else {
2365 if (*endptr == '-') {
2366 endvalue = strtoull(endptr+1, &endptr, 10);
2367 if (endvalue >= 63) {
2368 endvalue = 62;
2369 fprintf(stderr,
2370 "only 63 CPUs in NUMA mode supported.\n");
2371 }
2372 value = (1 << (endvalue + 1)) - (1 << value);
2373 } else {
2374 value = 1 << value;
2375 }
2376 }
2377 node_cpumask[nodenr] = value;
2378 }
2379 nb_numa_nodes++;
2380 }
2381 return;
2382}
2383
dc6b1c09
AP		 2384static void smp_parse(const char *optarg)
2385{
2386 int smp, sockets = 0, threads = 0, cores = 0;
2387 char *endptr;
2388 char option[128];
2389
2390 smp = strtoul(optarg, &endptr, 10);
2391 if (endptr != optarg) {
2392 if (*endptr == ',') {
2393 endptr++;
2394 }
2395 }
2396 if (get_param_value(option, 128, "sockets", endptr) != 0)
2397 sockets = strtoull(option, NULL, 10);
2398 if (get_param_value(option, 128, "cores", endptr) != 0)
2399 cores = strtoull(option, NULL, 10);
2400 if (get_param_value(option, 128, "threads", endptr) != 0)
2401 threads = strtoull(option, NULL, 10);
2402 if (get_param_value(option, 128, "maxcpus", endptr) != 0)
2403 max_cpus = strtoull(option, NULL, 10);
2404
2405 /* compute missing values, prefer sockets over cores over threads */
2406 if (smp == 0 || sockets == 0) {
2407 sockets = sockets > 0 ? sockets : 1;
2408 cores = cores > 0 ? cores : 1;
2409 threads = threads > 0 ? threads : 1;
2410 if (smp == 0) {
2411 smp = cores * threads * sockets;
2412 } else {
2413 sockets = smp / (cores * threads);
2414 }
2415 } else {
2416 if (cores == 0) {
2417 threads = threads > 0 ? threads : 1;
2418 cores = smp / (sockets * threads);
2419 } else {
2420 if (sockets == 0) {
2421 sockets = smp / (cores * threads);
2422 } else {
2423 threads = smp / (cores * sockets);
2424 }
2425 }
2426 }
2427 smp_cpus = smp;
2428 smp_cores = cores > 0 ? cores : 1;
2429 smp_threads = threads > 0 ? threads : 1;
2430 if (max_cpus == 0)
2431 max_cpus = smp_cpus;
2432}
2433
a594cfbf
FB		 2434/***********************************************************/
2435/* USB devices */
2436
bb5fc20f
AL		 2437static void usb_msd_password_cb(void *opaque, int err)
2438{
2439 USBDevice *dev = opaque;
2440
2441 if (!err)
a5d2f727 2442 usb_device_attach(dev);
bb5fc20f 2443 else
806b6024 2444 dev->info->handle_destroy(dev);
bb5fc20f
AL		 2445}
2446
a5d2f727
GH		 2447static struct {
2448 const char *name;
2449 const char *qdev;
2450} usbdevs[] = {
2451 {
2452 .name = "mouse",
2453 .qdev = "QEMU USB Mouse",
2454 },{
2455 .name = "tablet",
2456 .qdev = "QEMU USB Tablet",
2457 },{
2458 .name = "keyboard",
2459 .qdev = "QEMU USB Keyboard",
2460 },{
2461 .name = "wacom-tablet",
2462 .qdev = "QEMU PenPartner Tablet",
2463 }
2464};
2465
c0f4ce77 2466static int usb_device_add(const char *devname, int is_hotplug)
a594cfbf
FB		 2467{
2468 const char *p;
a5d2f727
GH		 2469 USBBus *bus = usb_bus_find(-1 /* any */);
2470 USBDevice *dev = NULL;
2471 int i;
a594cfbf 2472
a5d2f727 2473 if (!usb_enabled)
a594cfbf
FB		 2474 return -1;
2475
a5d2f727
GH		 2476 /* simple devices which don't need extra care */
2477 for (i = 0; i < ARRAY_SIZE(usbdevs); i++) {
2478 if (strcmp(devname, usbdevs[i].name) != 0)
2479 continue;
2480 dev = usb_create_simple(bus, usbdevs[i].qdev);
2481 goto done;
2482 }
2483
2484 /* the other ones */
a594cfbf
FB		 2485 if (strstart(devname, "host:", &p)) {
2486 dev = usb_host_device_open(p);
2e5d83bb 2487 } else if (strstart(devname, "disk:", &p)) {
c0f4ce77
AL		 2488 BlockDriverState *bs;
2489
bb5fc20f 2490 dev = usb_msd_init(p);
c0f4ce77
AL		 2491 if (!dev)
2492 return -1;
bb5fc20f 2493 bs = usb_msd_get_bdrv(dev);
c0f4ce77
AL		 2494 if (bdrv_key_required(bs)) {
2495 autostart = 0;
bb5fc20f 2496 if (is_hotplug) {
376253ec
AL		 2497 monitor_read_bdrv_key_start(cur_mon, bs, usb_msd_password_cb,
2498 dev);
bb5fc20f 2499 return 0;
c0f4ce77
AL		 2500 }
2501 }
a7954218
AZ		 2502 } else if (strstart(devname, "serial:", &p)) {
2503 dev = usb_serial_init(p);
2e4d9fb1
AJ		 2504#ifdef CONFIG_BRLAPI
2505 } else if (!strcmp(devname, "braille")) {
2506 dev = usb_baum_init();
2507#endif
6c9f886c 2508 } else if (strstart(devname, "net:", &p)) {
9ad97e65 2509 int nic = nb_nics;
6c9f886c 2510
10ae5a7a 2511 if (net_client_init(NULL, "nic", p) < 0)
6c9f886c 2512 return -1;
9ad97e65
AZ		 2513 nd_table[nic].model = "usb";
2514 dev = usb_net_init(&nd_table[nic]);
dc72ac14
AZ		 2515 } else if (!strcmp(devname, "bt") || strstart(devname, "bt:", &p)) {
2516 dev = usb_bt_init(devname[2] ? hci_init(p) :
2517 bt_new_hci(qemu_find_bt_vlan(0)));
a594cfbf
FB		 2518 } else {
2519 return -1;
2520 }
0d92ed30
PB		 2521 if (!dev)
2522 return -1;
2523
a5d2f727 2524done:
a594cfbf
FB		 2525 return 0;
2526}
2527
1f3870ab
AL		 2528static int usb_device_del(const char *devname)
2529{
2530 int bus_num, addr;
2531 const char *p;
2532
5d0c5750
AL		 2533 if (strstart(devname, "host:", &p))
2534 return usb_host_device_close(p);
2535
a5d2f727 2536 if (!usb_enabled)
1f3870ab
AL		 2537 return -1;
2538
2539 p = strchr(devname, '.');
2540 if (!p)
2541 return -1;
2542 bus_num = strtoul(devname, NULL, 0);
2543 addr = strtoul(p + 1, NULL, 0);
2544
a5d2f727 2545 return usb_device_delete_addr(bus_num, addr);
1f3870ab
AL		 2546}
2547
bd3c948d
GH		 2548static int usb_parse(const char *cmdline)
2549{
2550 return usb_device_add(cmdline, 0);
2551}
2552
d54908a5 2553void do_usb_add(Monitor *mon, const QDict *qdict)
a594cfbf 2554{
d54908a5 2555 usb_device_add(qdict_get_str(qdict, "devname"), 1);
a594cfbf
FB		 2556}
2557
d54908a5 2558void do_usb_del(Monitor *mon, const QDict *qdict)
a594cfbf 2559{
d54908a5 2560 usb_device_del(qdict_get_str(qdict, "devname"));
a594cfbf
FB		 2561}
2562
201a51fc
AZ		 2563/***********************************************************/
2564/* PCMCIA/Cardbus */
2565
2566static struct pcmcia_socket_entry_s {
bc24a225 2567 PCMCIASocket *socket;
201a51fc
AZ		 2568 struct pcmcia_socket_entry_s *next;
2569} *pcmcia_sockets = 0;
2570
bc24a225 2571void pcmcia_socket_register(PCMCIASocket *socket)
201a51fc
AZ		 2572{
2573 struct pcmcia_socket_entry_s *entry;
2574
2575 entry = qemu_malloc(sizeof(struct pcmcia_socket_entry_s));
2576 entry->socket = socket;
2577 entry->next = pcmcia_sockets;
2578 pcmcia_sockets = entry;
2579}
2580
bc24a225 2581void pcmcia_socket_unregister(PCMCIASocket *socket)
201a51fc
AZ		 2582{
2583 struct pcmcia_socket_entry_s *entry, **ptr;
2584
2585 ptr = &pcmcia_sockets;
2586 for (entry = *ptr; entry; ptr = &entry->next, entry = *ptr)
2587 if (entry->socket == socket) {
2588 *ptr = entry->next;
2589 qemu_free(entry);
2590 }
2591}
2592
376253ec 2593void pcmcia_info(Monitor *mon)
201a51fc
AZ		 2594{
2595 struct pcmcia_socket_entry_s *iter;
376253ec 2596
201a51fc 2597 if (!pcmcia_sockets)
376253ec 2598 monitor_printf(mon, "No PCMCIA sockets\n");
201a51fc
AZ		 2599
2600 for (iter = pcmcia_sockets; iter; iter = iter->next)
376253ec
AL		 2601 monitor_printf(mon, "%s: %s\n", iter->socket->slot_string,
2602 iter->socket->attached ? iter->socket->card_string :
2603 "Empty");
201a51fc
AZ		 2604}
2605
2ff89790 2606/***********************************************************/
3023f332
AL		 2607/* register display */
2608
7b5d76da
AL		 2609struct DisplayAllocator default_allocator = {
2610 defaultallocator_create_displaysurface,
2611 defaultallocator_resize_displaysurface,
2612 defaultallocator_free_displaysurface
2613};
2614
3023f332
AL		 2615void register_displaystate(DisplayState *ds)
2616{
2617 DisplayState **s;
2618 s = &display_state;
2619 while (*s != NULL)
2620 s = &(*s)->next;
2621 ds->next = NULL;
2622 *s = ds;
2623}
2624
2625DisplayState *get_displaystate(void)
2626{
2627 return display_state;
2628}
2629
7b5d76da
AL		 2630DisplayAllocator *register_displayallocator(DisplayState *ds, DisplayAllocator *da)
2631{
2632 if(ds->allocator == &default_allocator) ds->allocator = da;
2633 return ds->allocator;
2634}
2635
2ff89790
TS		 2636/* dumb display */
2637
8f391ab4 2638static void dumb_display_init(void)
2ff89790 2639{
8f391ab4 2640 DisplayState *ds = qemu_mallocz(sizeof(DisplayState));
7b5d76da
AL		 2641 ds->allocator = &default_allocator;
2642 ds->surface = qemu_create_displaysurface(ds, 640, 480);
8f391ab4 2643 register_displaystate(ds);
2ff89790
TS		 2644}
2645
8a7ddc38
FB		 2646/***********************************************************/
2647/* I/O handling */
0824d6fc 2648
c4b1fcc0
FB		 2649typedef struct IOHandlerRecord {
2650 int fd;
7c9d8e07
FB		 2651 IOCanRWHandler *fd_read_poll;
2652 IOHandler *fd_read;
2653 IOHandler *fd_write;
cafffd40 2654 int deleted;
c4b1fcc0
FB		 2655 void *opaque;
2656 /* temporary data */
2657 struct pollfd *ufd;
8a7ddc38 2658 struct IOHandlerRecord *next;
c4b1fcc0
FB		 2659} IOHandlerRecord;
2660
8a7ddc38 2661static IOHandlerRecord *first_io_handler;
c4b1fcc0 2662
7c9d8e07
FB		 2663/* XXX: fd_read_poll should be suppressed, but an API change is
2664 necessary in the character devices to suppress fd_can_read(). */
5fafdf24
TS		 2665int qemu_set_fd_handler2(int fd,
2666 IOCanRWHandler *fd_read_poll,
2667 IOHandler *fd_read,
2668 IOHandler *fd_write,
7c9d8e07 2669 void *opaque)
c4b1fcc0 2670{
7c9d8e07 2671 IOHandlerRecord **pioh, *ioh;
c4b1fcc0 2672
7c9d8e07
FB		 2673 if (!fd_read && !fd_write) {
2674 pioh = &first_io_handler;
2675 for(;;) {
2676 ioh = *pioh;
2677 if (ioh == NULL)
2678 break;
2679 if (ioh->fd == fd) {
cafffd40 2680 ioh->deleted = 1;
7c9d8e07
FB		 2681 break;
2682 }
2683 pioh = &ioh->next;
2684 }
2685 } else {
2686 for(ioh = first_io_handler; ioh != NULL; ioh = ioh->next) {
2687 if (ioh->fd == fd)
2688 goto found;
2689 }
2690 ioh = qemu_mallocz(sizeof(IOHandlerRecord));
7c9d8e07
FB		 2691 ioh->next = first_io_handler;
2692 first_io_handler = ioh;
2693 found:
2694 ioh->fd = fd;
2695 ioh->fd_read_poll = fd_read_poll;
2696 ioh->fd_read = fd_read;
2697 ioh->fd_write = fd_write;
2698 ioh->opaque = opaque;
cafffd40 2699 ioh->deleted = 0;
7c9d8e07 2700 }
c4b1fcc0
FB		 2701 return 0;
2702}
2703
5fafdf24
TS		 2704int qemu_set_fd_handler(int fd,
2705 IOHandler *fd_read,
2706 IOHandler *fd_write,
7c9d8e07 2707 void *opaque)
8a7ddc38 2708{
7c9d8e07 2709 return qemu_set_fd_handler2(fd, NULL, fd_read, fd_write, opaque);
8a7ddc38
FB		 2710}
2711
56f3a5d0 2712#ifdef _WIN32
f331110f
FB		 2713/***********************************************************/
2714/* Polling handling */
2715
2716typedef struct PollingEntry {
2717 PollingFunc *func;
2718 void *opaque;
2719 struct PollingEntry *next;
2720} PollingEntry;
2721
2722static PollingEntry *first_polling_entry;
2723
2724int qemu_add_polling_cb(PollingFunc *func, void *opaque)
2725{
2726 PollingEntry **ppe, *pe;
2727 pe = qemu_mallocz(sizeof(PollingEntry));
f331110f
FB		 2728 pe->func = func;
2729 pe->opaque = opaque;
2730 for(ppe = &first_polling_entry; *ppe != NULL; ppe = &(*ppe)->next);
2731 *ppe = pe;
2732 return 0;
2733}
2734
2735void qemu_del_polling_cb(PollingFunc *func, void *opaque)
2736{
2737 PollingEntry **ppe, *pe;
2738 for(ppe = &first_polling_entry; *ppe != NULL; ppe = &(*ppe)->next) {
2739 pe = *ppe;
2740 if (pe->func == func && pe->opaque == opaque) {
2741 *ppe = pe->next;
2742 qemu_free(pe);
2743 break;
2744 }
2745 }
2746}
2747
a18e524a
FB		 2748/***********************************************************/
2749/* Wait objects support */
2750typedef struct WaitObjects {
2751 int num;
2752 HANDLE events[MAXIMUM_WAIT_OBJECTS + 1];
2753 WaitObjectFunc *func[MAXIMUM_WAIT_OBJECTS + 1];
2754 void *opaque[MAXIMUM_WAIT_OBJECTS + 1];
2755} WaitObjects;
2756
2757static WaitObjects wait_objects = {0};
3b46e624 2758
a18e524a
FB		 2759int qemu_add_wait_object(HANDLE handle, WaitObjectFunc *func, void *opaque)
2760{
2761 WaitObjects *w = &wait_objects;
2762
2763 if (w->num >= MAXIMUM_WAIT_OBJECTS)
2764 return -1;
2765 w->events[w->num] = handle;
2766 w->func[w->num] = func;
2767 w->opaque[w->num] = opaque;
2768 w->num++;
2769 return 0;
2770}
2771
2772void qemu_del_wait_object(HANDLE handle, WaitObjectFunc *func, void *opaque)
2773{
2774 int i, found;
2775 WaitObjects *w = &wait_objects;
2776
2777 found = 0;
2778 for (i = 0; i < w->num; i++) {
2779 if (w->events[i] == handle)
2780 found = 1;
2781 if (found) {
2782 w->events[i] = w->events[i + 1];
2783 w->func[i] = w->func[i + 1];
2784 w->opaque[i] = w->opaque[i + 1];
3b46e624 2785 }
a18e524a
FB		 2786 }
2787 if (found)
2788 w->num--;
2789}
2790#endif
2791
8a7ddc38
FB		 2792/***********************************************************/
2793/* ram save/restore */
2794
8a7ddc38
FB		 2795static int ram_get_page(QEMUFile *f, uint8_t *buf, int len)
2796{
2797 int v;
2798
2799 v = qemu_get_byte(f);
2800 switch(v) {
2801 case 0:
2802 if (qemu_get_buffer(f, buf, len) != len)
2803 return -EIO;
2804 break;
2805 case 1:
2806 v = qemu_get_byte(f);
2807 memset(buf, v, len);
2808 break;
2809 default:
2810 return -EINVAL;
2811 }
871d2f07
AL		 2812
2813 if (qemu_file_has_error(f))
2814 return -EIO;
2815
8a7ddc38
FB		 2816 return 0;
2817}
2818
c88676f8
FB		 2819static int ram_load_v1(QEMUFile *f, void *opaque)
2820{
00f82b8a
AJ		 2821 int ret;
2822 ram_addr_t i;
c88676f8 2823
94a6b54f 2824 if (qemu_get_be32(f) != last_ram_offset)
c88676f8 2825 return -EINVAL;
94a6b54f 2826 for(i = 0; i < last_ram_offset; i+= TARGET_PAGE_SIZE) {
5579c7f3 2827 ret = ram_get_page(f, qemu_get_ram_ptr(i), TARGET_PAGE_SIZE);
c88676f8
FB		 2828 if (ret)
2829 return ret;
2830 }
2831 return 0;
2832}
2833
2834#define BDRV_HASH_BLOCK_SIZE 1024
2835#define IOBUF_SIZE 4096
2836#define RAM_CBLOCK_MAGIC 0xfabe
2837
c88676f8
FB		 2838typedef struct RamDecompressState {
2839 z_stream zstream;
2840 QEMUFile *f;
2841 uint8_t buf[IOBUF_SIZE];
2842} RamDecompressState;
2843
2844static int ram_decompress_open(RamDecompressState *s, QEMUFile *f)
2845{
2846 int ret;
2847 memset(s, 0, sizeof(*s));
2848 s->f = f;
2849 ret = inflateInit(&s->zstream);
2850 if (ret != Z_OK)
2851 return -1;
2852 return 0;
2853}
2854
2855static int ram_decompress_buf(RamDecompressState *s, uint8_t *buf, int len)
2856{
2857 int ret, clen;
2858
2859 s->zstream.avail_out = len;
2860 s->zstream.next_out = buf;
2861 while (s->zstream.avail_out > 0) {
2862 if (s->zstream.avail_in == 0) {
2863 if (qemu_get_be16(s->f) != RAM_CBLOCK_MAGIC)
2864 return -1;
2865 clen = qemu_get_be16(s->f);
2866 if (clen > IOBUF_SIZE)
2867 return -1;
2868 qemu_get_buffer(s->f, s->buf, clen);
2869 s->zstream.avail_in = clen;
2870 s->zstream.next_in = s->buf;
2871 }
2872 ret = inflate(&s->zstream, Z_PARTIAL_FLUSH);
2873 if (ret != Z_OK && ret != Z_STREAM_END) {
2874 return -1;
2875 }
2876 }
2877 return 0;
2878}
2879
2880static void ram_decompress_close(RamDecompressState *s)
2881{
2882 inflateEnd(&s->zstream);
2883}
2884
475e4277
AL		 2885#define RAM_SAVE_FLAG_FULL 0x01
2886#define RAM_SAVE_FLAG_COMPRESS 0x02
2887#define RAM_SAVE_FLAG_MEM_SIZE 0x04
2888#define RAM_SAVE_FLAG_PAGE 0x08
2889#define RAM_SAVE_FLAG_EOS 0x10
2890
2891static int is_dup_page(uint8_t *page, uint8_t ch)
8a7ddc38 2892{
475e4277
AL		 2893 uint32_t val = ch << 24 | ch << 16 | ch << 8 | ch;
2894 uint32_t *array = (uint32_t *)page;
2895 int i;
3b46e624 2896
475e4277
AL		 2897 for (i = 0; i < (TARGET_PAGE_SIZE / 4); i++) {
2898 if (array[i] != val)
2899 return 0;
2900 }
2901
2902 return 1;
2903}
2904
2905static int ram_save_block(QEMUFile *f)
2906{
2907 static ram_addr_t current_addr = 0;
2908 ram_addr_t saved_addr = current_addr;
2909 ram_addr_t addr = 0;
2910 int found = 0;
2911
94a6b54f 2912 while (addr < last_ram_offset) {
475e4277 2913 if (cpu_physical_memory_get_dirty(current_addr, MIGRATION_DIRTY_FLAG)) {
5579c7f3 2914 uint8_t *p;
475e4277
AL		 2915
2916 cpu_physical_memory_reset_dirty(current_addr,
2917 current_addr + TARGET_PAGE_SIZE,
2918 MIGRATION_DIRTY_FLAG);
2919
5579c7f3 2920 p = qemu_get_ram_ptr(current_addr);
475e4277 2921
5579c7f3 2922 if (is_dup_page(p, *p)) {
475e4277 2923 qemu_put_be64(f, current_addr | RAM_SAVE_FLAG_COMPRESS);
5579c7f3 2924 qemu_put_byte(f, *p);
475e4277
AL		 2925 } else {
2926 qemu_put_be64(f, current_addr | RAM_SAVE_FLAG_PAGE);
5579c7f3 2927 qemu_put_buffer(f, p, TARGET_PAGE_SIZE);
c88676f8 2928 }
475e4277
AL		 2929
2930 found = 1;
2931 break;
c88676f8 2932 }
475e4277 2933 addr += TARGET_PAGE_SIZE;
94a6b54f 2934 current_addr = (saved_addr + addr) % last_ram_offset;
8a7ddc38 2935 }
475e4277
AL		 2936
2937 return found;
8a7ddc38
FB		 2938}
2939
9f9e28cd 2940static uint64_t bytes_transferred = 0;
475e4277
AL		 2941
2942static ram_addr_t ram_save_remaining(void)
2943{
2944 ram_addr_t addr;
2945 ram_addr_t count = 0;
2946
94a6b54f 2947 for (addr = 0; addr < last_ram_offset; addr += TARGET_PAGE_SIZE) {
475e4277
AL		 2948 if (cpu_physical_memory_get_dirty(addr, MIGRATION_DIRTY_FLAG))
2949 count++;
2950 }
2951
2952 return count;
2953}
2954
9f9e28cd
GC		 2955uint64_t ram_bytes_remaining(void)
2956{
2957 return ram_save_remaining() * TARGET_PAGE_SIZE;
2958}
2959
2960uint64_t ram_bytes_transferred(void)
2961{
2962 return bytes_transferred;
2963}
2964
2965uint64_t ram_bytes_total(void)
2966{
2967 return last_ram_offset;
2968}
2969
475e4277
AL		 2970static int ram_save_live(QEMUFile *f, int stage, void *opaque)
2971{
2972 ram_addr_t addr;
a0a3fd60
GC		 2973 uint64_t bytes_transferred_last;
2974 double bwidth = 0;
2975 uint64_t expected_time = 0;
475e4277 2976
9fa06385 2977 if (cpu_physical_sync_dirty_bitmap(0, TARGET_PHYS_ADDR_MAX) != 0) {
b0a46a33
JK		 2978 qemu_file_set_error(f);
2979 return 0;
2980 }
2981
475e4277
AL		 2982 if (stage == 1) {
2983 /* Make sure all dirty bits are set */
94a6b54f 2984 for (addr = 0; addr < last_ram_offset; addr += TARGET_PAGE_SIZE) {
475e4277
AL		 2985 if (!cpu_physical_memory_get_dirty(addr, MIGRATION_DIRTY_FLAG))
2986 cpu_physical_memory_set_dirty(addr);
2987 }
b0a46a33 2988
475e4277
AL		 2989 /* Enable dirty memory tracking */
2990 cpu_physical_memory_set_dirty_tracking(1);
2991
94a6b54f 2992 qemu_put_be64(f, last_ram_offset | RAM_SAVE_FLAG_MEM_SIZE);
475e4277
AL		 2993 }
2994
a0a3fd60
GC		 2995 bytes_transferred_last = bytes_transferred;
2996 bwidth = get_clock();
2997
475e4277
AL		 2998 while (!qemu_file_rate_limit(f)) {
2999 int ret;
3000
3001 ret = ram_save_block(f);
9f9e28cd 3002 bytes_transferred += ret * TARGET_PAGE_SIZE;
475e4277
AL		 3003 if (ret == 0) /* no more blocks */
3004 break;
3005 }
3006
a0a3fd60
GC		 3007 bwidth = get_clock() - bwidth;
3008 bwidth = (bytes_transferred - bytes_transferred_last) / bwidth;
3009
3010 /* if we haven't transferred anything this round, force expected_time to a
3011 * a very high value, but without crashing */
3012 if (bwidth == 0)
3013 bwidth = 0.000001;
3014
475e4277
AL		 3015 /* try transferring iterative blocks of memory */
3016
3017 if (stage == 3) {
475e4277
AL		 3018
3019 /* flush all remaining blocks regardless of rate limiting */
9f9e28cd
GC		 3020 while (ram_save_block(f) != 0) {
3021 bytes_transferred += TARGET_PAGE_SIZE;
3022 }
8215e914 3023 cpu_physical_memory_set_dirty_tracking(0);
475e4277
AL		 3024 }
3025
3026 qemu_put_be64(f, RAM_SAVE_FLAG_EOS);
3027
a0a3fd60
GC		 3028 expected_time = ram_save_remaining() * TARGET_PAGE_SIZE / bwidth;
3029
3030 return (stage == 2) && (expected_time <= migrate_max_downtime());
475e4277
AL		 3031}
3032
3033static int ram_load_dead(QEMUFile *f, void *opaque)
8a7ddc38 3034{
c88676f8
FB		 3035 RamDecompressState s1, *s = &s1;
3036 uint8_t buf[10];
00f82b8a 3037 ram_addr_t i;
8a7ddc38 3038
c88676f8
FB		 3039 if (ram_decompress_open(s, f) < 0)
3040 return -EINVAL;
94a6b54f 3041 for(i = 0; i < last_ram_offset; i+= BDRV_HASH_BLOCK_SIZE) {
c88676f8
FB		 3042 if (ram_decompress_buf(s, buf, 1) < 0) {
3043 fprintf(stderr, "Error while reading ram block header\n");
3044 goto error;
3045 }
3046 if (buf[0] == 0) {
5579c7f3
PB		 3047 if (ram_decompress_buf(s, qemu_get_ram_ptr(i),
3048 BDRV_HASH_BLOCK_SIZE) < 0) {
00f82b8a 3049 fprintf(stderr, "Error while reading ram block address=0x%08" PRIx64, (uint64_t)i);
c88676f8
FB		 3050 goto error;
3051 }
475e4277 3052 } else {
c88676f8
FB		 3053 error:
3054 printf("Error block header\n");
3055 return -EINVAL;
3056 }
8a7ddc38 3057 }
c88676f8 3058 ram_decompress_close(s);
475e4277
AL		 3059
3060 return 0;
3061}
3062
3063static int ram_load(QEMUFile *f, void *opaque, int version_id)
3064{
3065 ram_addr_t addr;
3066 int flags;
3067
3068 if (version_id == 1)
3069 return ram_load_v1(f, opaque);
3070
3071 if (version_id == 2) {
94a6b54f 3072 if (qemu_get_be32(f) != last_ram_offset)
475e4277
AL		 3073 return -EINVAL;
3074 return ram_load_dead(f, opaque);
3075 }
3076
3077 if (version_id != 3)
3078 return -EINVAL;
3079
3080 do {
3081 addr = qemu_get_be64(f);
3082
3083 flags = addr & ~TARGET_PAGE_MASK;
3084 addr &= TARGET_PAGE_MASK;
3085
3086 if (flags & RAM_SAVE_FLAG_MEM_SIZE) {
94a6b54f 3087 if (addr != last_ram_offset)
475e4277
AL		 3088 return -EINVAL;
3089 }
3090
3091 if (flags & RAM_SAVE_FLAG_FULL) {
3092 if (ram_load_dead(f, opaque) < 0)
3093 return -EINVAL;
3094 }
3095
3096 if (flags & RAM_SAVE_FLAG_COMPRESS) {
3097 uint8_t ch = qemu_get_byte(f);
779c6bef
AL		 3098 memset(qemu_get_ram_ptr(addr), ch, TARGET_PAGE_SIZE);
3099#ifndef _WIN32
30868442
AL		 3100 if (ch == 0 &&
3101 (!kvm_enabled() || kvm_has_sync_mmu())) {
3102 madvise(qemu_get_ram_ptr(addr), TARGET_PAGE_SIZE, MADV_DONTNEED);
779c6bef 3103 }
30868442 3104#endif
475e4277 3105 } else if (flags & RAM_SAVE_FLAG_PAGE)
5579c7f3 3106 qemu_get_buffer(f, qemu_get_ram_ptr(addr), TARGET_PAGE_SIZE);
475e4277
AL		 3107 } while (!(flags & RAM_SAVE_FLAG_EOS));
3108
8a7ddc38
FB		 3109 return 0;
3110}
3111
9e472e10
AL		 3112void qemu_service_io(void)
3113{
d9f75a4e 3114 qemu_notify_event();
9e472e10
AL		 3115}
3116
83f64091
FB		 3117/***********************************************************/
3118/* bottom halves (can be seen as timers which expire ASAP) */
3119
3120struct QEMUBH {
3121 QEMUBHFunc *cb;
3122 void *opaque;
3123 int scheduled;
1b435b10
AL		 3124 int idle;
3125 int deleted;
83f64091
FB		 3126 QEMUBH *next;
3127};
3128
3129static QEMUBH *first_bh = NULL;
3130
3131QEMUBH *qemu_bh_new(QEMUBHFunc *cb, void *opaque)
3132{
3133 QEMUBH *bh;
3134 bh = qemu_mallocz(sizeof(QEMUBH));
83f64091
FB		 3135 bh->cb = cb;
3136 bh->opaque = opaque;
1b435b10
AL		 3137 bh->next = first_bh;
3138 first_bh = bh;
83f64091
FB		 3139 return bh;
3140}
3141
6eb5733a 3142int qemu_bh_poll(void)
83f64091 3143{
1b435b10 3144 QEMUBH *bh, **bhp;
6eb5733a 3145 int ret;
83f64091 3146
6eb5733a 3147 ret = 0;
1b435b10
AL		 3148 for (bh = first_bh; bh; bh = bh->next) {
3149 if (!bh->deleted && bh->scheduled) {
3150 bh->scheduled = 0;
3151 if (!bh->idle)
3152 ret = 1;
3153 bh->idle = 0;
3154 bh->cb(bh->opaque);
3155 }
83f64091 3156 }
1b435b10
AL		 3157
3158 /* remove deleted bhs */
3159 bhp = &first_bh;
3160 while (*bhp) {
3161 bh = *bhp;
3162 if (bh->deleted) {
3163 *bhp = bh->next;
3164 qemu_free(bh);
3165 } else
3166 bhp = &bh->next;
3167 }
3168
6eb5733a 3169 return ret;
83f64091
FB		 3170}
3171
1b435b10
AL		 3172void qemu_bh_schedule_idle(QEMUBH *bh)
3173{
3174 if (bh->scheduled)
3175 return;
3176 bh->scheduled = 1;
3177 bh->idle = 1;
3178}
3179
83f64091
FB		 3180void qemu_bh_schedule(QEMUBH *bh)
3181{
83f64091
FB		 3182 if (bh->scheduled)
3183 return;
3184 bh->scheduled = 1;
1b435b10 3185 bh->idle = 0;
83f64091 3186 /* stop the currently executing CPU to execute the BH ASAP */
d9f75a4e 3187 qemu_notify_event();
83f64091
FB		 3188}
3189
3190void qemu_bh_cancel(QEMUBH *bh)
3191{
1b435b10 3192 bh->scheduled = 0;
83f64091
FB		 3193}
3194
3195void qemu_bh_delete(QEMUBH *bh)
3196{
1b435b10
AL		 3197 bh->scheduled = 0;
3198 bh->deleted = 1;
83f64091
FB		 3199}
3200
56f3a5d0
AL		 3201static void qemu_bh_update_timeout(int *timeout)
3202{
3203 QEMUBH *bh;
3204
3205 for (bh = first_bh; bh; bh = bh->next) {
3206 if (!bh->deleted && bh->scheduled) {
3207 if (bh->idle) {
3208 /* idle bottom halves will be polled at least
3209 * every 10ms */
3210 *timeout = MIN(10, *timeout);
3211 } else {
3212 /* non-idle bottom halves will be executed
3213 * immediately */
3214 *timeout = 0;
3215 break;
3216 }
3217 }
3218 }
3219}
3220
cc1daa40
FB		 3221/***********************************************************/
3222/* machine registration */
3223
bdaf78e0 3224static QEMUMachine *first_machine = NULL;
6f338c34 3225QEMUMachine *current_machine = NULL;
cc1daa40
FB		 3226
3227int qemu_register_machine(QEMUMachine *m)
3228{
3229 QEMUMachine **pm;
3230 pm = &first_machine;
3231 while (*pm != NULL)
3232 pm = &(*pm)->next;
3233 m->next = NULL;
3234 *pm = m;
3235 return 0;
3236}
3237
9596ebb7 3238static QEMUMachine *find_machine(const char *name)
cc1daa40
FB		 3239{
3240 QEMUMachine *m;
3241
3242 for(m = first_machine; m != NULL; m = m->next) {
3243 if (!strcmp(m->name, name))
3244 return m;
3f6599e6
MM		 3245 if (m->alias && !strcmp(m->alias, name))
3246 return m;
cc1daa40
FB		 3247 }
3248 return NULL;
3249}
3250
0c257437
AL		 3251static QEMUMachine *find_default_machine(void)
3252{
3253 QEMUMachine *m;
3254
3255 for(m = first_machine; m != NULL; m = m->next) {
3256 if (m->is_default) {
3257 return m;
3258 }
3259 }
3260 return NULL;
3261}
3262
8a7ddc38
FB		 3263/***********************************************************/
3264/* main execution loop */
3265
9596ebb7 3266static void gui_update(void *opaque)
8a7ddc38 3267{
7d957bd8 3268 uint64_t interval = GUI_REFRESH_INTERVAL;
740733bb 3269 DisplayState *ds = opaque;
7d957bd8
AL		 3270 DisplayChangeListener *dcl = ds->listeners;
3271
3272 dpy_refresh(ds);
3273
3274 while (dcl != NULL) {
3275 if (dcl->gui_timer_interval &&
3276 dcl->gui_timer_interval < interval)
3277 interval = dcl->gui_timer_interval;
3278 dcl = dcl->next;
3279 }
3280 qemu_mod_timer(ds->gui_timer, interval + qemu_get_clock(rt_clock));
8a7ddc38
FB		 3281}
3282
9043b62d
BS		 3283static void nographic_update(void *opaque)
3284{
3285 uint64_t interval = GUI_REFRESH_INTERVAL;
3286
3287 qemu_mod_timer(nographic_timer, interval + qemu_get_clock(rt_clock));
3288}
3289
0bd48850
FB		 3290struct vm_change_state_entry {
3291 VMChangeStateHandler *cb;
3292 void *opaque;
3293 LIST_ENTRY (vm_change_state_entry) entries;
3294};
3295
3296static LIST_HEAD(vm_change_state_head, vm_change_state_entry) vm_change_state_head;
3297
3298VMChangeStateEntry *qemu_add_vm_change_state_handler(VMChangeStateHandler *cb,
3299 void *opaque)
3300{
3301 VMChangeStateEntry *e;
3302
3303 e = qemu_mallocz(sizeof (*e));
0bd48850
FB		 3304
3305 e->cb = cb;
3306 e->opaque = opaque;
3307 LIST_INSERT_HEAD(&vm_change_state_head, e, entries);
3308 return e;
3309}
3310
3311void qemu_del_vm_change_state_handler(VMChangeStateEntry *e)
3312{
3313 LIST_REMOVE (e, entries);
3314 qemu_free (e);
3315}
3316
9781e040 3317static void vm_state_notify(int running, int reason)
0bd48850
FB		 3318{
3319 VMChangeStateEntry *e;
3320
3321 for (e = vm_change_state_head.lh_first; e; e = e->entries.le_next) {
9781e040 3322 e->cb(e->opaque, running, reason);
0bd48850
FB		 3323 }
3324}
3325
d6dc3d42
AL		 3326static void resume_all_vcpus(void);
3327static void pause_all_vcpus(void);
3328
8a7ddc38
FB		 3329void vm_start(void)
3330{
3331 if (!vm_running) {
3332 cpu_enable_ticks();
3333 vm_running = 1;
9781e040 3334 vm_state_notify(1, 0);
efe75411 3335 qemu_rearm_alarm_timer(alarm_timer);
d6dc3d42 3336 resume_all_vcpus();
8a7ddc38
FB		 3337 }
3338}
3339
bb0c6722
FB		 3340/* reset/shutdown handler */
3341
3342typedef struct QEMUResetEntry {
55ddfe8e 3343 TAILQ_ENTRY(QEMUResetEntry) entry;
bb0c6722
FB		 3344 QEMUResetHandler *func;
3345 void *opaque;
bb0c6722
FB		 3346} QEMUResetEntry;
3347
55ddfe8e
JK		 3348static TAILQ_HEAD(reset_handlers, QEMUResetEntry) reset_handlers =
3349 TAILQ_HEAD_INITIALIZER(reset_handlers);
bb0c6722
FB		 3350static int reset_requested;
3351static int shutdown_requested;
3475187d 3352static int powerdown_requested;
e568902a 3353static int debug_requested;
6e29f5da 3354static int vmstop_requested;
bb0c6722 3355
cf7a2fe2
AJ		 3356int qemu_shutdown_requested(void)
3357{
3358 int r = shutdown_requested;
3359 shutdown_requested = 0;
3360 return r;
3361}
3362
3363int qemu_reset_requested(void)
3364{
3365 int r = reset_requested;
3366 reset_requested = 0;
3367 return r;
3368}
3369
3370int qemu_powerdown_requested(void)
3371{
3372 int r = powerdown_requested;
3373 powerdown_requested = 0;
3374 return r;
3375}
3376
e568902a
AL		 3377static int qemu_debug_requested(void)
3378{
3379 int r = debug_requested;
3380 debug_requested = 0;
3381 return r;
3382}
3383
6e29f5da
AL		 3384static int qemu_vmstop_requested(void)
3385{
3386 int r = vmstop_requested;
3387 vmstop_requested = 0;
3388 return r;
3389}
3390
3391static void do_vm_stop(int reason)
3392{
3393 if (vm_running) {
3394 cpu_disable_ticks();
3395 vm_running = 0;
d6dc3d42 3396 pause_all_vcpus();
6e29f5da
AL		 3397 vm_state_notify(0, reason);
3398 }
3399}
3400
a08d4367 3401void qemu_register_reset(QEMUResetHandler *func, void *opaque)
bb0c6722 3402{
55ddfe8e 3403 QEMUResetEntry *re = qemu_mallocz(sizeof(QEMUResetEntry));
bb0c6722 3404
bb0c6722
FB		 3405 re->func = func;
3406 re->opaque = opaque;
55ddfe8e 3407 TAILQ_INSERT_TAIL(&reset_handlers, re, entry);
bb0c6722
FB		 3408}
3409
dda9b29f 3410void qemu_unregister_reset(QEMUResetHandler *func, void *opaque)
bb0c6722
FB		 3411{
3412 QEMUResetEntry *re;
3413
55ddfe8e 3414 TAILQ_FOREACH(re, &reset_handlers, entry) {
dda9b29f
JK		 3415 if (re->func == func && re->opaque == opaque) {
3416 TAILQ_REMOVE(&reset_handlers, re, entry);
3417 qemu_free(re);
3418 return;
3419 }
3420 }
3421}
3422
3423void qemu_system_reset(void)
3424{
3425 QEMUResetEntry *re, *nre;
3426
3427 /* reset all devices */
3428 TAILQ_FOREACH_SAFE(re, &reset_handlers, entry, nre) {
bb0c6722
FB		 3429 re->func(re->opaque);
3430 }
3431}
3432
3433void qemu_system_reset_request(void)
3434{
d1beab82
FB		 3435 if (no_reboot) {
3436 shutdown_requested = 1;
3437 } else {
3438 reset_requested = 1;
3439 }
d9f75a4e 3440 qemu_notify_event();
bb0c6722
FB		 3441}
3442
3443void qemu_system_shutdown_request(void)
3444{
3445 shutdown_requested = 1;
d9f75a4e 3446 qemu_notify_event();
bb0c6722
FB		 3447}
3448
3475187d
FB		 3449void qemu_system_powerdown_request(void)
3450{
3451 powerdown_requested = 1;
d9f75a4e
AL		 3452 qemu_notify_event();
3453}
3454
d6dc3d42
AL		 3455#ifdef CONFIG_IOTHREAD
3456static void qemu_system_vmstop_request(int reason)
d9f75a4e 3457{
d6dc3d42
AL		 3458 vmstop_requested = reason;
3459 qemu_notify_event();
bb0c6722 3460}
d6dc3d42 3461#endif
bb0c6722 3462
50317c7f
AL		 3463#ifndef _WIN32
3464static int io_thread_fd = -1;
3465
3466static void qemu_event_increment(void)
3fcf7b6b 3467{
50317c7f
AL		 3468 static const char byte = 0;
3469
3470 if (io_thread_fd == -1)
3471 return;
3472
3473 write(io_thread_fd, &byte, sizeof(byte));
3474}
3475
3476static void qemu_event_read(void *opaque)
3477{
3478 int fd = (unsigned long)opaque;
3479 ssize_t len;
3480
3481 /* Drain the notify pipe */
3482 do {
3483 char buffer[512];
3484 len = read(fd, buffer, sizeof(buffer));
3485 } while ((len == -1 && errno == EINTR) || len > 0);
3486}
3487
3488static int qemu_event_init(void)
3489{
3490 int err;
3491 int fds[2];
3492
3493 err = pipe(fds);
3494 if (err == -1)
3495 return -errno;
3496
3497 err = fcntl_setfl(fds[0], O_NONBLOCK);
3498 if (err < 0)
3499 goto fail;
3500
3501 err = fcntl_setfl(fds[1], O_NONBLOCK);
3502 if (err < 0)
3503 goto fail;
3504
3505 qemu_set_fd_handler2(fds[0], NULL, qemu_event_read, NULL,
3506 (void *)(unsigned long)fds[0]);
3507
3508 io_thread_fd = fds[1];
a7e21219
JK		 3509 return 0;
3510
50317c7f
AL		 3511fail:
3512 close(fds[0]);
3513 close(fds[1]);
3514 return err;
3515}
3516#else
3517HANDLE qemu_event_handle;
3518
3519static void dummy_event_handler(void *opaque)
3520{
3521}
3522
3523static int qemu_event_init(void)
3524{
3525 qemu_event_handle = CreateEvent(NULL, FALSE, FALSE, NULL);
3526 if (!qemu_event_handle) {
3527 perror("Failed CreateEvent");
3528 return -1;
3529 }
3530 qemu_add_wait_object(qemu_event_handle, dummy_event_handler, NULL);
3fcf7b6b
AL		 3531 return 0;
3532}
3533
50317c7f
AL		 3534static void qemu_event_increment(void)
3535{
3536 SetEvent(qemu_event_handle);
3537}
3538#endif
3539
d6dc3d42
AL		 3540static int cpu_can_run(CPUState *env)
3541{
3542 if (env->stop)
3543 return 0;
3544 if (env->stopped)
3545 return 0;
3546 return 1;
3547}
3548
3549#ifndef CONFIG_IOTHREAD
50317c7f
AL		 3550static int qemu_init_main_loop(void)
3551{
3552 return qemu_event_init();
3553}
3554
0bf46a40
AL		 3555void qemu_init_vcpu(void *_env)
3556{
3557 CPUState *env = _env;
3558
3559 if (kvm_enabled())
3560 kvm_init_vcpu(env);
dc6b1c09
AP		 3561 env->nr_cores = smp_cores;
3562 env->nr_threads = smp_threads;
0bf46a40
AL		 3563 return;
3564}
3565
8edac960
AL		 3566int qemu_cpu_self(void *env)
3567{
3568 return 1;
3569}
3570
d6dc3d42
AL		 3571static void resume_all_vcpus(void)
3572{
3573}
3574
3575static void pause_all_vcpus(void)
3576{
3577}
3578
8edac960
AL		 3579void qemu_cpu_kick(void *env)
3580{
3581 return;
3582}
3583
d6dc3d42
AL		 3584void qemu_notify_event(void)
3585{
3586 CPUState *env = cpu_single_env;
3587
3588 if (env) {
3589 cpu_exit(env);
4a1418e0 3590 }
d6dc3d42
AL		 3591}
3592
4870852c
AL		 3593#define qemu_mutex_lock_iothread() do { } while (0)
3594#define qemu_mutex_unlock_iothread() do { } while (0)
3595
6e29f5da
AL		 3596void vm_stop(int reason)
3597{
3598 do_vm_stop(reason);
3599}
3600
d6dc3d42
AL		 3601#else /* CONFIG_IOTHREAD */
3602
3603#include "qemu-thread.h"
3604
3605QemuMutex qemu_global_mutex;
3606static QemuMutex qemu_fair_mutex;
3607
3608static QemuThread io_thread;
3609
3610static QemuThread *tcg_cpu_thread;
3611static QemuCond *tcg_halt_cond;
3612
3613static int qemu_system_ready;
3614/* cpu creation */
3615static QemuCond qemu_cpu_cond;
3616/* system init */
3617static QemuCond qemu_system_cond;
3618static QemuCond qemu_pause_cond;
3619
3620static void block_io_signals(void);
3621static void unblock_io_signals(void);
3622static int tcg_has_work(void);
3623
3624static int qemu_init_main_loop(void)
3625{
3626 int ret;
3627
3628 ret = qemu_event_init();
3629 if (ret)
3630 return ret;
3631
3632 qemu_cond_init(&qemu_pause_cond);
3633 qemu_mutex_init(&qemu_fair_mutex);
3634 qemu_mutex_init(&qemu_global_mutex);
3635 qemu_mutex_lock(&qemu_global_mutex);
3636
3637 unblock_io_signals();
3638 qemu_thread_self(&io_thread);
3639
3640 return 0;
3641}
3642
3643static void qemu_wait_io_event(CPUState *env)
3644{
3645 while (!tcg_has_work())
3646 qemu_cond_timedwait(env->halt_cond, &qemu_global_mutex, 1000);
3647
3648 qemu_mutex_unlock(&qemu_global_mutex);
3649
3650 /*
3651 * Users of qemu_global_mutex can be starved, having no chance
3652 * to acquire it since this path will get to it first.
3653 * So use another lock to provide fairness.
3654 */
3655 qemu_mutex_lock(&qemu_fair_mutex);
3656 qemu_mutex_unlock(&qemu_fair_mutex);
3657
3658 qemu_mutex_lock(&qemu_global_mutex);
3659 if (env->stop) {
3660 env->stop = 0;
3661 env->stopped = 1;
3662 qemu_cond_signal(&qemu_pause_cond);
3663 }
3664}
3665
3666static int qemu_cpu_exec(CPUState *env);
3667
3668static void *kvm_cpu_thread_fn(void *arg)
3669{
3670 CPUState *env = arg;
3671
3672 block_io_signals();
3673 qemu_thread_self(env->thread);
321c1cb1
JCD		 3674 if (kvm_enabled())
3675 kvm_init_vcpu(env);
d6dc3d42
AL		 3676
3677 /* signal CPU creation */
3678 qemu_mutex_lock(&qemu_global_mutex);
3679 env->created = 1;
3680 qemu_cond_signal(&qemu_cpu_cond);
3681
3682 /* and wait for machine initialization */
3683 while (!qemu_system_ready)
3684 qemu_cond_timedwait(&qemu_system_cond, &qemu_global_mutex, 100);
3685
733318ea
GC		 3686 cpu_synchronize_state(env);
3687
d6dc3d42 3688 while (1) {
733318ea 3689 qemu_wait_io_event(env);
d6dc3d42
AL		 3690 if (cpu_can_run(env))
3691 qemu_cpu_exec(env);
d6dc3d42
AL		 3692 }
3693
3694 return NULL;
3695}
3696
3697static void tcg_cpu_exec(void);
3698
3699static void *tcg_cpu_thread_fn(void *arg)
3700{
3701 CPUState *env = arg;
3702
3703 block_io_signals();
3704 qemu_thread_self(env->thread);
3705
3706 /* signal CPU creation */
3707 qemu_mutex_lock(&qemu_global_mutex);
3708 for (env = first_cpu; env != NULL; env = env->next_cpu)
3709 env->created = 1;
3710 qemu_cond_signal(&qemu_cpu_cond);
3711
3712 /* and wait for machine initialization */
3713 while (!qemu_system_ready)
3714 qemu_cond_timedwait(&qemu_system_cond, &qemu_global_mutex, 100);
3715
733318ea
GC		 3716 for (env = first_cpu; env != NULL; env = env->next_cpu) {
3717 cpu_synchronize_state(env);
3718 }
d6dc3d42
AL		 3719 while (1) {
3720 tcg_cpu_exec();
3721 qemu_wait_io_event(cur_cpu);
3722 }
3723
3724 return NULL;
3725}
3726
3727void qemu_cpu_kick(void *_env)
3728{
3729 CPUState *env = _env;
3730 qemu_cond_broadcast(env->halt_cond);
3731 if (kvm_enabled())
3732 qemu_thread_signal(env->thread, SIGUSR1);
3733}
3734
3735int qemu_cpu_self(void *env)
3736{
3737 return (cpu_single_env != NULL);
3738}
3739
3740static void cpu_signal(int sig)
3741{
3742 if (cpu_single_env)
3743 cpu_exit(cpu_single_env);
3744}
3745
3746static void block_io_signals(void)
3747{
3748 sigset_t set;
3749 struct sigaction sigact;
3750
3751 sigemptyset(&set);
3752 sigaddset(&set, SIGUSR2);
3753 sigaddset(&set, SIGIO);
3754 sigaddset(&set, SIGALRM);
3755 pthread_sigmask(SIG_BLOCK, &set, NULL);
3756
3757 sigemptyset(&set);
3758 sigaddset(&set, SIGUSR1);
3759 pthread_sigmask(SIG_UNBLOCK, &set, NULL);
3760
3761 memset(&sigact, 0, sizeof(sigact));
3762 sigact.sa_handler = cpu_signal;
3763 sigaction(SIGUSR1, &sigact, NULL);
3764}
3765
3766static void unblock_io_signals(void)
3767{
3768 sigset_t set;
3769
3770 sigemptyset(&set);
3771 sigaddset(&set, SIGUSR2);
3772 sigaddset(&set, SIGIO);
3773 sigaddset(&set, SIGALRM);
3774 pthread_sigmask(SIG_UNBLOCK, &set, NULL);
3775
3776 sigemptyset(&set);
3777 sigaddset(&set, SIGUSR1);
3778 pthread_sigmask(SIG_BLOCK, &set, NULL);
3779}
3780
3781static void qemu_signal_lock(unsigned int msecs)
3782{
3783 qemu_mutex_lock(&qemu_fair_mutex);
3784
3785 while (qemu_mutex_trylock(&qemu_global_mutex)) {
3786 qemu_thread_signal(tcg_cpu_thread, SIGUSR1);
3787 if (!qemu_mutex_timedlock(&qemu_global_mutex, msecs))
3788 break;
3789 }
3790 qemu_mutex_unlock(&qemu_fair_mutex);
3791}
3792
3793static void qemu_mutex_lock_iothread(void)
3794{
3795 if (kvm_enabled()) {
3796 qemu_mutex_lock(&qemu_fair_mutex);
3797 qemu_mutex_lock(&qemu_global_mutex);
3798 qemu_mutex_unlock(&qemu_fair_mutex);
3799 } else
3800 qemu_signal_lock(100);
3801}
3802
3803static void qemu_mutex_unlock_iothread(void)
3804{
3805 qemu_mutex_unlock(&qemu_global_mutex);
3806}
3807
3808static int all_vcpus_paused(void)
3809{
3810 CPUState *penv = first_cpu;
3811
3812 while (penv) {
3813 if (!penv->stopped)
3814 return 0;
3815 penv = (CPUState *)penv->next_cpu;
3816 }
3817
3818 return 1;
3819}
3820
3821static void pause_all_vcpus(void)
3822{
3823 CPUState *penv = first_cpu;
3824
3825 while (penv) {
3826 penv->stop = 1;
3827 qemu_thread_signal(penv->thread, SIGUSR1);
3828 qemu_cpu_kick(penv);
3829 penv = (CPUState *)penv->next_cpu;
3830 }
3831
3832 while (!all_vcpus_paused()) {
3833 qemu_cond_timedwait(&qemu_pause_cond, &qemu_global_mutex, 100);
3834 penv = first_cpu;
3835 while (penv) {
3836 qemu_thread_signal(penv->thread, SIGUSR1);
3837 penv = (CPUState *)penv->next_cpu;
3838 }
3839 }
3840}
3841
3842static void resume_all_vcpus(void)
3843{
3844 CPUState *penv = first_cpu;
3845
3846 while (penv) {
3847 penv->stop = 0;
3848 penv->stopped = 0;
3849 qemu_thread_signal(penv->thread, SIGUSR1);
3850 qemu_cpu_kick(penv);
3851 penv = (CPUState *)penv->next_cpu;
3852 }
3853}
3854
3855static void tcg_init_vcpu(void *_env)
3856{
3857 CPUState *env = _env;
3858 /* share a single thread for all cpus with TCG */
3859 if (!tcg_cpu_thread) {
3860 env->thread = qemu_mallocz(sizeof(QemuThread));
3861 env->halt_cond = qemu_mallocz(sizeof(QemuCond));
3862 qemu_cond_init(env->halt_cond);
3863 qemu_thread_create(env->thread, tcg_cpu_thread_fn, env);
3864 while (env->created == 0)
3865 qemu_cond_timedwait(&qemu_cpu_cond, &qemu_global_mutex, 100);
3866 tcg_cpu_thread = env->thread;
3867 tcg_halt_cond = env->halt_cond;
3868 } else {
3869 env->thread = tcg_cpu_thread;
3870 env->halt_cond = tcg_halt_cond;
3871 }
3872}
3873
3874static void kvm_start_vcpu(CPUState *env)
3875{
d6dc3d42
AL		 3876 env->thread = qemu_mallocz(sizeof(QemuThread));
3877 env->halt_cond = qemu_mallocz(sizeof(QemuCond));
3878 qemu_cond_init(env->halt_cond);
3879 qemu_thread_create(env->thread, kvm_cpu_thread_fn, env);
3880 while (env->created == 0)
3881 qemu_cond_timedwait(&qemu_cpu_cond, &qemu_global_mutex, 100);
3882}
3883
3884void qemu_init_vcpu(void *_env)
3885{
3886 CPUState *env = _env;
3887
3888 if (kvm_enabled())
3889 kvm_start_vcpu(env);
3890 else
3891 tcg_init_vcpu(env);
dc6b1c09
AP		 3892 env->nr_cores = smp_cores;
3893 env->nr_threads = smp_threads;
d6dc3d42
AL		 3894}
3895
3896void qemu_notify_event(void)
3897{
3898 qemu_event_increment();
3899}
3900
3901void vm_stop(int reason)
3902{
3903 QemuThread me;
3904 qemu_thread_self(&me);
3905
3906 if (!qemu_thread_equal(&me, &io_thread)) {
3907 qemu_system_vmstop_request(reason);
3908 /*
3909 * FIXME: should not return to device code in case
3910 * vm_stop() has been requested.
3911 */
3912 if (cpu_single_env) {
3913 cpu_exit(cpu_single_env);
3914 cpu_single_env->stop = 1;
3915 }
3916 return;
3917 }
3918 do_vm_stop(reason);
3919}
3920
3921#endif
3922
3923
877cf882 3924#ifdef _WIN32
69d6451c 3925static void host_main_loop_wait(int *timeout)
56f3a5d0
AL		 3926{
3927 int ret, ret2, i;
f331110f
FB		 3928 PollingEntry *pe;
3929
c4b1fcc0 3930
f331110f
FB		 3931 /* XXX: need to suppress polling by better using win32 events */
3932 ret = 0;
3933 for(pe = first_polling_entry; pe != NULL; pe = pe->next) {
3934 ret |= pe->func(pe->opaque);
3935 }
e6b1e558 3936 if (ret == 0) {
a18e524a
FB		 3937 int err;
3938 WaitObjects *w = &wait_objects;
3b46e624 3939
56f3a5d0 3940 ret = WaitForMultipleObjects(w->num, w->events, FALSE, *timeout);
a18e524a
FB		 3941 if (WAIT_OBJECT_0 + 0 <= ret && ret <= WAIT_OBJECT_0 + w->num - 1) {
3942 if (w->func[ret - WAIT_OBJECT_0])
3943 w->func[ret - WAIT_OBJECT_0](w->opaque[ret - WAIT_OBJECT_0]);
3b46e624 3944
5fafdf24 3945 /* Check for additional signaled events */
e6b1e558 3946 for(i = (ret - WAIT_OBJECT_0 + 1); i < w->num; i++) {
3b46e624 3947
e6b1e558
TS		 3948 /* Check if event is signaled */
3949 ret2 = WaitForSingleObject(w->events[i], 0);
3950 if(ret2 == WAIT_OBJECT_0) {
3951 if (w->func[i])
3952 w->func[i](w->opaque[i]);
3953 } else if (ret2 == WAIT_TIMEOUT) {
3954 } else {
3955 err = GetLastError();
3956 fprintf(stderr, "WaitForSingleObject error %d %d\n", i, err);
3b46e624
TS		 3957 }
3958 }
a18e524a
FB		 3959 } else if (ret == WAIT_TIMEOUT) {
3960 } else {
3961 err = GetLastError();
e6b1e558 3962 fprintf(stderr, "WaitForMultipleObjects error %d %d\n", ret, err);
a18e524a 3963 }
f331110f 3964 }
56f3a5d0
AL		 3965
3966 *timeout = 0;
3967}
3968#else
69d6451c 3969static void host_main_loop_wait(int *timeout)
56f3a5d0
AL		 3970{
3971}
fd1dff4b 3972#endif
56f3a5d0
AL		 3973
3974void main_loop_wait(int timeout)
3975{
3976 IOHandlerRecord *ioh;
3977 fd_set rfds, wfds, xfds;
3978 int ret, nfds;
3979 struct timeval tv;
3980
3981 qemu_bh_update_timeout(&timeout);
3982
3983 host_main_loop_wait(&timeout);
3984
fd1dff4b
FB		 3985 /* poll any events */
3986 /* XXX: separate device handlers from system ones */
6abfbd79 3987 nfds = -1;
fd1dff4b
FB		 3988 FD_ZERO(&rfds);
3989 FD_ZERO(&wfds);
e035649e 3990 FD_ZERO(&xfds);
fd1dff4b 3991 for(ioh = first_io_handler; ioh != NULL; ioh = ioh->next) {
cafffd40
TS		 3992 if (ioh->deleted)
3993 continue;
fd1dff4b
FB		 3994 if (ioh->fd_read &&
3995 (!ioh->fd_read_poll ||
3996 ioh->fd_read_poll(ioh->opaque) != 0)) {
3997 FD_SET(ioh->fd, &rfds);
3998 if (ioh->fd > nfds)
3999 nfds = ioh->fd;
4000 }
4001 if (ioh->fd_write) {
4002 FD_SET(ioh->fd, &wfds);
4003 if (ioh->fd > nfds)
4004 nfds = ioh->fd;
4005 }
4006 }
3b46e624 4007
56f3a5d0
AL		 4008 tv.tv_sec = timeout / 1000;
4009 tv.tv_usec = (timeout % 1000) * 1000;
4010
d918f23e
JK		 4011 slirp_select_fill(&nfds, &rfds, &wfds, &xfds);
4012
4870852c 4013 qemu_mutex_unlock_iothread();
e035649e 4014 ret = select(nfds + 1, &rfds, &wfds, &xfds, &tv);
4870852c 4015 qemu_mutex_lock_iothread();
fd1dff4b 4016 if (ret > 0) {
cafffd40
TS		 4017 IOHandlerRecord **pioh;
4018
4019 for(ioh = first_io_handler; ioh != NULL; ioh = ioh->next) {
6ab43fdc 4020 if (!ioh->deleted && ioh->fd_read && FD_ISSET(ioh->fd, &rfds)) {
fd1dff4b 4021 ioh->fd_read(ioh->opaque);
7c9d8e07 4022 }
6ab43fdc 4023 if (!ioh->deleted && ioh->fd_write && FD_ISSET(ioh->fd, &wfds)) {
fd1dff4b 4024 ioh->fd_write(ioh->opaque);
c4b1fcc0 4025 }
b4608c04 4026 }
cafffd40
TS		 4027
4028 /* remove deleted IO handlers */
4029 pioh = &first_io_handler;
4030 while (*pioh) {
4031 ioh = *pioh;
4032 if (ioh->deleted) {
4033 *pioh = ioh->next;
4034 qemu_free(ioh);
5fafdf24 4035 } else
cafffd40
TS		 4036 pioh = &ioh->next;
4037 }
fd1dff4b 4038 }
d918f23e
JK		 4039
4040 slirp_select_poll(&rfds, &wfds, &xfds, (ret < 0));
b4608c04 4041
50317c7f
AL		 4042 /* rearm timer, if not periodic */
4043 if (alarm_timer->flags & ALARM_FLAG_EXPIRED) {
4044 alarm_timer->flags &= ~ALARM_FLAG_EXPIRED;
4045 qemu_rearm_alarm_timer(alarm_timer);
4046 }
4047
357c692c 4048 /* vm time timers */
d6dc3d42
AL		 4049 if (vm_running) {
4050 if (!cur_cpu || likely(!(cur_cpu->singlestep_enabled & SSTEP_NOTIMER)))
4051 qemu_run_timers(&active_timers[QEMU_TIMER_VIRTUAL],
4052 qemu_get_clock(vm_clock));
4053 }
357c692c
AL		 4054
4055 /* real time timers */
4056 qemu_run_timers(&active_timers[QEMU_TIMER_REALTIME],
4057 qemu_get_clock(rt_clock));
4058
423f0742
PB		 4059 /* Check bottom-halves last in case any of the earlier events triggered
4060 them. */
4061 qemu_bh_poll();
3b46e624 4062
5905b2e5
FB		 4063}
4064
43b96858 4065static int qemu_cpu_exec(CPUState *env)
5905b2e5 4066{
43b96858 4067 int ret;
89bfc105
FB		 4068#ifdef CONFIG_PROFILER
4069 int64_t ti;
4070#endif
5905b2e5 4071
89bfc105 4072#ifdef CONFIG_PROFILER
43b96858 4073 ti = profile_getclock();
89bfc105 4074#endif
43b96858
AL		 4075 if (use_icount) {
4076 int64_t count;
4077 int decr;
4078 qemu_icount -= (env->icount_decr.u16.low + env->icount_extra);
4079 env->icount_decr.u16.low = 0;
4080 env->icount_extra = 0;
4081 count = qemu_next_deadline();
4082 count = (count + (1 << icount_time_shift) - 1)
4083 >> icount_time_shift;
4084 qemu_icount += count;
4085 decr = (count > 0xffff) ? 0xffff : count;
4086 count -= decr;
4087 env->icount_decr.u16.low = decr;
4088 env->icount_extra = count;
4089 }
4090 ret = cpu_exec(env);
89bfc105 4091#ifdef CONFIG_PROFILER
43b96858 4092 qemu_time += profile_getclock() - ti;
89bfc105 4093#endif
43b96858
AL		 4094 if (use_icount) {
4095 /* Fold pending instructions back into the
4096 instruction counter, and clear the interrupt flag. */
4097 qemu_icount -= (env->icount_decr.u16.low
4098 + env->icount_extra);
4099 env->icount_decr.u32 = 0;
4100 env->icount_extra = 0;
4101 }
4102 return ret;
4103}
4104
e6e35b1e
AL		 4105static void tcg_cpu_exec(void)
4106{
d6dc3d42 4107 int ret = 0;
e6e35b1e
AL		 4108
4109 if (next_cpu == NULL)
4110 next_cpu = first_cpu;
4111 for (; next_cpu != NULL; next_cpu = next_cpu->next_cpu) {
4112 CPUState *env = cur_cpu = next_cpu;
4113
4114 if (!vm_running)
4115 break;
4116 if (timer_alarm_pending) {
4117 timer_alarm_pending = 0;
4118 break;
4119 }
d6dc3d42
AL		 4120 if (cpu_can_run(env))
4121 ret = qemu_cpu_exec(env);
e6e35b1e
AL		 4122 if (ret == EXCP_DEBUG) {
4123 gdb_set_stop_cpu(env);
4124 debug_requested = 1;
4125 break;
4126 }
4127 }
4128}
4129
43b96858
AL		 4130static int cpu_has_work(CPUState *env)
4131{
d6dc3d42
AL		 4132 if (env->stop)
4133 return 1;
4134 if (env->stopped)
4135 return 0;
43b96858
AL		 4136 if (!env->halted)
4137 return 1;
4138 if (qemu_cpu_has_work(env))
4139 return 1;
4140 return 0;
4141}
4142
4143static int tcg_has_work(void)
4144{
4145 CPUState *env;
4146
4147 for (env = first_cpu; env != NULL; env = env->next_cpu)
4148 if (cpu_has_work(env))
4149 return 1;
4150 return 0;
4151}
4152
4153static int qemu_calculate_timeout(void)
4154{
b319820d 4155#ifndef CONFIG_IOTHREAD
43b96858
AL		 4156 int timeout;
4157
4158 if (!vm_running)
4159 timeout = 5000;
4160 else if (tcg_has_work())
4161 timeout = 0;
4162 else if (!use_icount)
4163 timeout = 5000;
4164 else {
4165 /* XXX: use timeout computed from timers */
4166 int64_t add;
4167 int64_t delta;
4168 /* Advance virtual time to the next event. */
4169 if (use_icount == 1) {
4170 /* When not using an adaptive execution frequency
4171 we tend to get badly out of sync with real time,
4172 so just delay for a reasonable amount of time. */
4173 delta = 0;
4174 } else {
4175 delta = cpu_get_icount() - cpu_get_clock();
4176 }
4177 if (delta > 0) {
4178 /* If virtual time is ahead of real time then just
4179 wait for IO. */
4180 timeout = (delta / 1000000) + 1;
4181 } else {
4182 /* Wait for either IO to occur or the next
4183 timer event. */
4184 add = qemu_next_deadline();
4185 /* We advance the timer before checking for IO.
4186 Limit the amount we advance so that early IO
4187 activity won't get the guest too far ahead. */
4188 if (add > 10000000)
4189 add = 10000000;
4190 delta += add;
4191 add = (add + (1 << icount_time_shift) - 1)
4192 >> icount_time_shift;
4193 qemu_icount += add;
4194 timeout = delta / 1000000;
4195 if (timeout < 0)
4196 timeout = 0;
4197 }
4198 }
4199
4200 return timeout;
b319820d
LC		 4201#else /* CONFIG_IOTHREAD */
4202 return 1000;
4203#endif
43b96858
AL		 4204}
4205
4206static int vm_can_run(void)
4207{
4208 if (powerdown_requested)
4209 return 0;
4210 if (reset_requested)
4211 return 0;
4212 if (shutdown_requested)
4213 return 0;
e568902a
AL		 4214 if (debug_requested)
4215 return 0;
43b96858
AL		 4216 return 1;
4217}
4218
d9c32310
BS		 4219qemu_irq qemu_system_powerdown;
4220
43b96858
AL		 4221static void main_loop(void)
4222{
6e29f5da 4223 int r;
e6e35b1e 4224
d6dc3d42
AL		 4225#ifdef CONFIG_IOTHREAD
4226 qemu_system_ready = 1;
4227 qemu_cond_broadcast(&qemu_system_cond);
4228#endif
4229
6e29f5da 4230 for (;;) {
43b96858 4231 do {
e6e35b1e
AL		 4232#ifdef CONFIG_PROFILER
4233 int64_t ti;
4234#endif
d6dc3d42 4235#ifndef CONFIG_IOTHREAD
e6e35b1e 4236 tcg_cpu_exec();
d6dc3d42 4237#endif
89bfc105 4238#ifdef CONFIG_PROFILER
43b96858 4239 ti = profile_getclock();
89bfc105 4240#endif
43b96858 4241 main_loop_wait(qemu_calculate_timeout());
89bfc105 4242#ifdef CONFIG_PROFILER
43b96858 4243 dev_time += profile_getclock() - ti;
89bfc105 4244#endif
e568902a 4245 } while (vm_can_run());
43b96858 4246
e568902a
AL		 4247 if (qemu_debug_requested())
4248 vm_stop(EXCP_DEBUG);
43b96858
AL		 4249 if (qemu_shutdown_requested()) {
4250 if (no_shutdown) {
4251 vm_stop(0);
4252 no_shutdown = 0;
4253 } else
4254 break;
4255 }
d6dc3d42
AL		 4256 if (qemu_reset_requested()) {
4257 pause_all_vcpus();
43b96858 4258 qemu_system_reset();
d6dc3d42
AL		 4259 resume_all_vcpus();
4260 }
d9c32310
BS		 4261 if (qemu_powerdown_requested()) {
4262 qemu_irq_raise(qemu_system_powerdown);
4263 }
6e29f5da
AL		 4264 if ((r = qemu_vmstop_requested()))
4265 vm_stop(r);
b4608c04 4266 }
d6dc3d42 4267 pause_all_vcpus();
b4608c04
FB		 4268}
4269
9bd7e6d9
PB		 4270static void version(void)
4271{
4a19f1ec 4272 printf("QEMU PC emulator version " QEMU_VERSION QEMU_PKGVERSION ", Copyright (c) 2003-2008 Fabrice Bellard\n");
9bd7e6d9
PB		 4273}
4274
15f82208 4275static void help(int exitcode)
0824d6fc 4276{
9bd7e6d9
PB		 4277 version();
4278 printf("usage: %s [options] [disk_image]\n"
0824d6fc 4279 "\n"
a20dd508 4280 "'disk_image' is a raw hard image image for IDE hard disk 0\n"
fc01f7e7 4281 "\n"
5824d651
BS		 4282#define DEF(option, opt_arg, opt_enum, opt_help) \
4283 opt_help
4284#define DEFHEADING(text) stringify(text) "\n"
4285#include "qemu-options.h"
4286#undef DEF
4287#undef DEFHEADING
4288#undef GEN_DOCS
0824d6fc 4289 "\n"
82c643ff 4290 "During emulation, the following keys are useful:\n"
032a8c9e
FB		 4291 "ctrl-alt-f toggle full screen\n"
4292 "ctrl-alt-n switch to virtual console 'n'\n"
4293 "ctrl-alt toggle mouse and keyboard grab\n"
82c643ff
FB		 4294 "\n"
4295 "When using -nographic, press 'ctrl-a h' to get some help.\n"
4296 ,
0db63474 4297 "qemu",
a00bad7e 4298 DEFAULT_RAM_SIZE,
7c9d8e07 4299#ifndef _WIN32
a00bad7e 4300 DEFAULT_NETWORK_SCRIPT,
b46a8906 4301 DEFAULT_NETWORK_DOWN_SCRIPT,
7c9d8e07 4302#endif
6e44ba7f 4303 DEFAULT_GDBSTUB_PORT,
bce61846 4304 "/tmp/qemu.log");
15f82208 4305 exit(exitcode);
0824d6fc
FB		 4306}
4307
cd6f1169
FB		 4308#define HAS_ARG 0x0001
4309
4310enum {
5824d651
BS		 4311#define DEF(option, opt_arg, opt_enum, opt_help) \
4312 opt_enum,
4313#define DEFHEADING(text)
4314#include "qemu-options.h"
4315#undef DEF
4316#undef DEFHEADING
4317#undef GEN_DOCS
cd6f1169
FB		 4318};
4319
4320typedef struct QEMUOption {
4321 const char *name;
4322 int flags;
4323 int index;
4324} QEMUOption;
4325
dbed7e40 4326static const QEMUOption qemu_options[] = {
cd6f1169 4327 { "h", 0, QEMU_OPTION_h },
5824d651
BS		 4328#define DEF(option, opt_arg, opt_enum, opt_help) \
4329 { option, opt_arg, opt_enum },
4330#define DEFHEADING(text)
4331#include "qemu-options.h"
4332#undef DEF
4333#undef DEFHEADING
4334#undef GEN_DOCS
cd6f1169 4335 { NULL },
fc01f7e7
FB		 4336};
4337
1d14ffa9 4338#ifdef HAS_AUDIO
6a36d84e 4339struct soundhw soundhw[] = {
b00052e4 4340#ifdef HAS_AUDIO_CHOICE
4ce7ff6e 4341#if defined(TARGET_I386) || defined(TARGET_MIPS)
fd06c375
FB		 4342 {
4343 "pcspk",
4344 "PC speaker",
4345 0,
4346 1,
4347 { .init_isa = pcspk_audio_init }
4348 },
4349#endif
4c9b53e3 4350
4351#ifdef CONFIG_SB16
6a36d84e
FB		 4352 {
4353 "sb16",
4354 "Creative Sound Blaster 16",
4355 0,
4356 1,
4357 { .init_isa = SB16_init }
4358 },
4c9b53e3 4359#endif
6a36d84e 4360
cc53d26d 4361#ifdef CONFIG_CS4231A
4362 {
4363 "cs4231a",
4364 "CS4231A",
4365 0,
4366 1,
4367 { .init_isa = cs4231a_init }
4368 },
4369#endif
4370
1d14ffa9 4371#ifdef CONFIG_ADLIB
6a36d84e
FB		 4372 {
4373 "adlib",
1d14ffa9 4374#ifdef HAS_YMF262
6a36d84e 4375 "Yamaha YMF262 (OPL3)",
1d14ffa9 4376#else
6a36d84e 4377 "Yamaha YM3812 (OPL2)",
1d14ffa9 4378#endif
6a36d84e
FB		 4379 0,
4380 1,
4381 { .init_isa = Adlib_init }
4382 },
1d14ffa9 4383#endif
6a36d84e 4384
1d14ffa9 4385#ifdef CONFIG_GUS
6a36d84e
FB		 4386 {
4387 "gus",
4388 "Gravis Ultrasound GF1",
4389 0,
4390 1,
4391 { .init_isa = GUS_init }
4392 },
1d14ffa9 4393#endif
6a36d84e 4394
4c9b53e3 4395#ifdef CONFIG_AC97
e5c9a13e
AZ		 4396 {
4397 "ac97",
4398 "Intel 82801AA AC97 Audio",
4399 0,
4400 0,
4401 { .init_pci = ac97_init }
4402 },
4c9b53e3 4403#endif
e5c9a13e 4404
4c9b53e3 4405#ifdef CONFIG_ES1370
6a36d84e
FB		 4406 {
4407 "es1370",
4408 "ENSONIQ AudioPCI ES1370",
4409 0,
4410 0,
4411 { .init_pci = es1370_init }
4412 },
b00052e4 4413#endif
6a36d84e 4414
4c9b53e3 4415#endif /* HAS_AUDIO_CHOICE */
4416
6a36d84e
FB		 4417 { NULL, NULL, 0, 0, { NULL } }
4418};
4419
4420static void select_soundhw (const char *optarg)
4421{
4422 struct soundhw *c;
4423
4424 if (*optarg == '?') {
4425 show_valid_cards:
4426
4427 printf ("Valid sound card names (comma separated):\n");
4428 for (c = soundhw; c->name; ++c) {
4429 printf ("%-11s %s\n", c->name, c->descr);
4430 }
4431 printf ("\n-soundhw all will enable all of the above\n");
1d14ffa9
FB		 4432 exit (*optarg != '?');
4433 }
4434 else {
6a36d84e 4435 size_t l;
1d14ffa9
FB		 4436 const char *p;
4437 char *e;
4438 int bad_card = 0;
4439
6a36d84e
FB		 4440 if (!strcmp (optarg, "all")) {
4441 for (c = soundhw; c->name; ++c) {
4442 c->enabled = 1;
4443 }
4444 return;
4445 }
1d14ffa9 4446
6a36d84e 4447 p = optarg;
1d14ffa9
FB		 4448 while (*p) {
4449 e = strchr (p, ',');
4450 l = !e ? strlen (p) : (size_t) (e - p);
6a36d84e
FB		 4451
4452 for (c = soundhw; c->name; ++c) {
b3d6fb4a 4453 if (!strncmp (c->name, p, l) && !c->name[l]) {
6a36d84e 4454 c->enabled = 1;
1d14ffa9
FB		 4455 break;
4456 }
4457 }
6a36d84e
FB		 4458
4459 if (!c->name) {
1d14ffa9
FB		 4460 if (l > 80) {
4461 fprintf (stderr,
4462 "Unknown sound card name (too big to show)\n");
4463 }
4464 else {
4465 fprintf (stderr, "Unknown sound card name `%.*s'\n",
4466 (int) l, p);
4467 }
4468 bad_card = 1;
4469 }
4470 p += l + (e != NULL);
4471 }
4472
4473 if (bad_card)
4474 goto show_valid_cards;
4475 }
4476}
4477#endif
4478
3893c124 4479static void select_vgahw (const char *p)
4480{
4481 const char *opts;
4482
86176759 4483 vga_interface_type = VGA_NONE;
3893c124 4484 if (strstart(p, "std", &opts)) {
86176759 4485 vga_interface_type = VGA_STD;
3893c124 4486 } else if (strstart(p, "cirrus", &opts)) {
86176759 4487 vga_interface_type = VGA_CIRRUS;
3893c124 4488 } else if (strstart(p, "vmware", &opts)) {
86176759 4489 vga_interface_type = VGA_VMWARE;
94909d9f 4490 } else if (strstart(p, "xenfb", &opts)) {
86176759 4491 vga_interface_type = VGA_XENFB;
28b85ed8 4492 } else if (!strstart(p, "none", &opts)) {
3893c124 4493 invalid_vga:
4494 fprintf(stderr, "Unknown vga type: %s\n", p);
4495 exit(1);
4496 }
cb5a7aa8 4497 while (*opts) {
4498 const char *nextopt;
4499
4500 if (strstart(opts, ",retrace=", &nextopt)) {
4501 opts = nextopt;
4502 if (strstart(opts, "dumb", &nextopt))
4503 vga_retrace_method = VGA_RETRACE_DUMB;
4504 else if (strstart(opts, "precise", &nextopt))
4505 vga_retrace_method = VGA_RETRACE_PRECISE;
4506 else goto invalid_vga;
4507 } else goto invalid_vga;
4508 opts = nextopt;
4509 }
3893c124 4510}
4511
7d4c3d53
MA		 4512#ifdef TARGET_I386
4513static int balloon_parse(const char *arg)
4514{
382f0743 4515 QemuOpts *opts;
7d4c3d53 4516
382f0743
GH		 4517 if (strcmp(arg, "none") == 0) {
4518 return 0;
4519 }
4520
4521 if (!strncmp(arg, "virtio", 6)) {
4522 if (arg[6] == ',') {
4523 /* have params -> parse them */
4524 opts = qemu_opts_parse(&qemu_device_opts, arg+7, NULL);
4525 if (!opts)
4526 return -1;
4527 } else {
4528 /* create empty opts */
4529 opts = qemu_opts_create(&qemu_device_opts, NULL, 0);
7d4c3d53 4530 }
382f0743
GH		 4531 qemu_opt_set(opts, "driver", "virtio-balloon-pci");
4532 return 0;
7d4c3d53 4533 }
382f0743
GH		 4534
4535 return -1;
7d4c3d53
MA		 4536}
4537#endif
4538
3587d7e6
FB		 4539#ifdef _WIN32
4540static BOOL WINAPI qemu_ctrl_handler(DWORD type)
4541{
4542 exit(STATUS_CONTROL_C_EXIT);
4543 return TRUE;
4544}
4545#endif
4546
c4be29ff 4547int qemu_uuid_parse(const char *str, uint8_t *uuid)
8fcb1b90
BS		 4548{
4549 int ret;
4550
4551 if(strlen(str) != 36)
4552 return -1;
4553
4554 ret = sscanf(str, UUID_FMT, &uuid[0], &uuid[1], &uuid[2], &uuid[3],
4555 &uuid[4], &uuid[5], &uuid[6], &uuid[7], &uuid[8], &uuid[9],
4556 &uuid[10], &uuid[11], &uuid[12], &uuid[13], &uuid[14], &uuid[15]);
4557
4558 if(ret != 16)
4559 return -1;
4560
b6f6e3d3
AL		 4561#ifdef TARGET_I386
4562 smbios_add_field(1, offsetof(struct smbios_type_1, uuid), 16, uuid);
4563#endif
4564
8fcb1b90
BS		 4565 return 0;
4566}
4567
7c9d8e07 4568#define MAX_NET_CLIENTS 32
c20709aa 4569
5b08fc10
AL		 4570#ifndef _WIN32
4571
4572static void termsig_handler(int signal)
4573{
4574 qemu_system_shutdown_request();
4575}
4576
7c3370d4
JK		 4577static void sigchld_handler(int signal)
4578{
4579 waitpid(-1, NULL, WNOHANG);
4580}
4581
4582static void sighandler_setup(void)
5b08fc10
AL		 4583{
4584 struct sigaction act;
4585
4586 memset(&act, 0, sizeof(act));
4587 act.sa_handler = termsig_handler;
4588 sigaction(SIGINT, &act, NULL);
4589 sigaction(SIGHUP, &act, NULL);
4590 sigaction(SIGTERM, &act, NULL);
7c3370d4
JK		 4591
4592 act.sa_handler = sigchld_handler;
4593 act.sa_flags = SA_NOCLDSTOP;
4594 sigaction(SIGCHLD, &act, NULL);
5b08fc10
AL		 4595}
4596
4597#endif
4598
5cea8590
PB		 4599#ifdef _WIN32
4600/* Look for support files in the same directory as the executable. */
4601static char *find_datadir(const char *argv0)
4602{
4603 char *p;
4604 char buf[MAX_PATH];
4605 DWORD len;
4606
4607 len = GetModuleFileName(NULL, buf, sizeof(buf) - 1);
4608 if (len == 0) {
c5947808 4609 return NULL;
5cea8590
PB		 4610 }
4611
4612 buf[len] = 0;
4613 p = buf + len - 1;
4614 while (p != buf && *p != '\\')
4615 p--;
4616 *p = 0;
4617 if (access(buf, R_OK) == 0) {
4618 return qemu_strdup(buf);
4619 }
4620 return NULL;
4621}
4622#else /* !_WIN32 */
4623
4624/* Find a likely location for support files using the location of the binary.
4625 For installed binaries this will be "$bindir/../share/qemu". When
4626 running from the build tree this will be "$bindir/../pc-bios". */
4627#define SHARE_SUFFIX "/share/qemu"
4628#define BUILD_SUFFIX "/pc-bios"
4629static char *find_datadir(const char *argv0)
4630{
4631 char *dir;
4632 char *p = NULL;
4633 char *res;
5cea8590 4634 char buf[PATH_MAX];
3a41759d 4635 size_t max_len;
5cea8590
PB		 4636
4637#if defined(__linux__)
4638 {
4639 int len;
4640 len = readlink("/proc/self/exe", buf, sizeof(buf) - 1);
4641 if (len > 0) {
4642 buf[len] = 0;
4643 p = buf;
4644 }
4645 }
4646#elif defined(__FreeBSD__)
4647 {
4648 int len;
4649 len = readlink("/proc/curproc/file", buf, sizeof(buf) - 1);
4650 if (len > 0) {
4651 buf[len] = 0;
4652 p = buf;
4653 }
4654 }
4655#endif
4656 /* If we don't have any way of figuring out the actual executable
4657 location then try argv[0]. */
4658 if (!p) {
4d224196 4659 p = realpath(argv0, buf);
5cea8590
PB		 4660 if (!p) {
4661 return NULL;
4662 }
4663 }
4664 dir = dirname(p);
4665 dir = dirname(dir);
4666
3a41759d
BS		 4667 max_len = strlen(dir) +
4668 MAX(strlen(SHARE_SUFFIX), strlen(BUILD_SUFFIX)) + 1;
4669 res = qemu_mallocz(max_len);
4670 snprintf(res, max_len, "%s%s", dir, SHARE_SUFFIX);
5cea8590 4671 if (access(res, R_OK)) {
3a41759d 4672 snprintf(res, max_len, "%s%s", dir, BUILD_SUFFIX);
5cea8590
PB		 4673 if (access(res, R_OK)) {
4674 qemu_free(res);
4675 res = NULL;
4676 }
4677 }
4d224196 4678
5cea8590
PB		 4679 return res;
4680}
4681#undef SHARE_SUFFIX
4682#undef BUILD_SUFFIX
4683#endif
4684
4685char *qemu_find_file(int type, const char *name)
4686{
4687 int len;
4688 const char *subdir;
4689 char *buf;
4690
4691 /* If name contains path separators then try it as a straight path. */
4692 if ((strchr(name, '/') || strchr(name, '\\'))
4693 && access(name, R_OK) == 0) {
73ffc805 4694 return qemu_strdup(name);
5cea8590
PB		 4695 }
4696 switch (type) {
4697 case QEMU_FILE_TYPE_BIOS:
4698 subdir = "";
4699 break;
4700 case QEMU_FILE_TYPE_KEYMAP:
4701 subdir = "keymaps/";
4702 break;
4703 default:
4704 abort();
4705 }
4706 len = strlen(data_dir) + strlen(name) + strlen(subdir) + 2;
4707 buf = qemu_mallocz(len);
3a41759d 4708 snprintf(buf, len, "%s/%s%s", data_dir, subdir, name);
5cea8590
PB		 4709 if (access(buf, R_OK)) {
4710 qemu_free(buf);
4711 return NULL;
4712 }
4713 return buf;
4714}
4715
f31d07d1
GH		 4716static int device_init_func(QemuOpts *opts, void *opaque)
4717{
4718 DeviceState *dev;
4719
4720 dev = qdev_device_add(opts);
4721 if (!dev)
4722 return -1;
4723 return 0;
4724}
4725
bd3c948d
GH		 4726struct device_config {
4727 enum {
bd3c948d
GH		 4728 DEV_USB, /* -usbdevice */
4729 DEV_BT, /* -bt */
4730 } type;
4731 const char *cmdline;
4732 TAILQ_ENTRY(device_config) next;
4733};
4734TAILQ_HEAD(, device_config) device_configs = TAILQ_HEAD_INITIALIZER(device_configs);
4735
4736static void add_device_config(int type, const char *cmdline)
4737{
4738 struct device_config *conf;
4739
4740 conf = qemu_mallocz(sizeof(*conf));
4741 conf->type = type;
4742 conf->cmdline = cmdline;
4743 TAILQ_INSERT_TAIL(&device_configs, conf, next);
4744}
4745
4746static int foreach_device_config(int type, int (*func)(const char *cmdline))
4747{
4748 struct device_config *conf;
4749 int rc;
4750
4751 TAILQ_FOREACH(conf, &device_configs, next) {
4752 if (conf->type != type)
4753 continue;
4754 rc = func(conf->cmdline);
4755 if (0 != rc)
4756 return rc;
4757 }
4758 return 0;
4759}
4760
902b3d5c 4761int main(int argc, char **argv, char **envp)
0824d6fc 4762{
59030a8c 4763 const char *gdbstub_dev = NULL;
28c5af54 4764 uint32_t boot_devices_bitmap = 0;
e4bcb14c 4765 int i;
28c5af54 4766 int snapshot, linux_boot, net_boot;
7f7f9873 4767 const char *initrd_filename;
a20dd508 4768 const char *kernel_filename, *kernel_cmdline;
ef3adf68 4769 char boot_devices[33] = "cad"; /* default to HD->floppy->CD-ROM */
3023f332 4770 DisplayState *ds;
7d957bd8 4771 DisplayChangeListener *dcl;
46d4767d 4772 int cyls, heads, secs, translation;
fd5f393a 4773 const char *net_clients[MAX_NET_CLIENTS];
7c9d8e07 4774 int nb_net_clients;
f31d07d1 4775 QemuOpts *hda_opts = NULL, *opts;
cd6f1169
FB		 4776 int optind;
4777 const char *r, *optarg;
ddd9bbd9
JK		 4778 CharDriverState *monitor_hds[MAX_MONITOR_DEVICES];
4779 const char *monitor_devices[MAX_MONITOR_DEVICES];
4780 int monitor_device_index;
fd5f393a 4781 const char *serial_devices[MAX_SERIAL_PORTS];
8d11df9e 4782 int serial_device_index;
fd5f393a 4783 const char *parallel_devices[MAX_PARALLEL_PORTS];
6508fe59 4784 int parallel_device_index;
9ede2fde
AL		 4785 const char *virtio_consoles[MAX_VIRTIO_CONSOLES];
4786 int virtio_console_index;
d63d307f 4787 const char *loadvm = NULL;
cc1daa40 4788 QEMUMachine *machine;
94fc95cd 4789 const char *cpu_model;
b9e82a59 4790#ifndef _WIN32
71e3ceb8 4791 int fds[2];
b9e82a59 4792#endif
26a5f13b 4793 int tb_size;
93815bc2 4794 const char *pid_file = NULL;
5bb7910a 4795 const char *incoming = NULL;
b9e82a59 4796#ifndef _WIN32
54042bcf
AL		 4797 int fd = 0;
4798 struct passwd *pwd = NULL;
0858532e
AL		 4799 const char *chroot_dir = NULL;
4800 const char *run_as = NULL;
b9e82a59 4801#endif
268a362c 4802 CPUState *env;
993fbfdb 4803 int show_vnc_port = 0;
0bd48850 4804
ac7531ec 4805 qemu_errors_to_file(stderr);
902b3d5c 4806 qemu_cache_utils_init(envp);
4807
0bd48850 4808 LIST_INIT (&vm_change_state_head);
be995c27
FB		 4809#ifndef _WIN32
4810 {
4811 struct sigaction act;
4812 sigfillset(&act.sa_mask);
4813 act.sa_flags = 0;
4814 act.sa_handler = SIG_IGN;
4815 sigaction(SIGPIPE, &act, NULL);
4816 }
3587d7e6
FB		 4817#else
4818 SetConsoleCtrlHandler(qemu_ctrl_handler, TRUE);
a8e5ac33
FB		 4819 /* Note: cpu_interrupt() is currently not SMP safe, so we force
4820 QEMU to run on a single CPU */
4821 {
4822 HANDLE h;
4823 DWORD mask, smask;
4824 int i;
4825 h = GetCurrentProcess();
4826 if (GetProcessAffinityMask(h, &mask, &smask)) {
4827 for(i = 0; i < 32; i++) {
4828 if (mask & (1 << i))
4829 break;
4830 }
4831 if (i != 32) {
4832 mask = 1 << i;
4833 SetProcessAffinityMask(h, mask);
4834 }
4835 }
4836 }
67b915a5 4837#endif
be995c27 4838
f80f9ec9 4839 module_call_init(MODULE_INIT_MACHINE);
0c257437 4840 machine = find_default_machine();
94fc95cd 4841 cpu_model = NULL;
fc01f7e7 4842 initrd_filename = NULL;
4fc5d071 4843 ram_size = 0;
33e3963e 4844 snapshot = 0;
a20dd508
FB		 4845 kernel_filename = NULL;
4846 kernel_cmdline = "";
c4b1fcc0 4847 cyls = heads = secs = 0;
46d4767d 4848 translation = BIOS_ATA_TRANSLATION_AUTO;
c4b1fcc0 4849
c75a823c 4850 serial_devices[0] = "vc:80Cx24C";
8d11df9e 4851 for(i = 1; i < MAX_SERIAL_PORTS; i++)
fd5f393a 4852 serial_devices[i] = NULL;
8d11df9e 4853 serial_device_index = 0;
3b46e624 4854
8290edda 4855 parallel_devices[0] = "vc:80Cx24C";
6508fe59 4856 for(i = 1; i < MAX_PARALLEL_PORTS; i++)
fd5f393a 4857 parallel_devices[i] = NULL;
6508fe59 4858 parallel_device_index = 0;
3b46e624 4859
1b8fc811 4860 for(i = 0; i < MAX_VIRTIO_CONSOLES; i++)
9ede2fde
AL		 4861 virtio_consoles[i] = NULL;
4862 virtio_console_index = 0;
4863
ddd9bbd9
JK		 4864 monitor_devices[0] = "vc:80Cx24C";
4865 for (i = 1; i < MAX_MONITOR_DEVICES; i++) {
4866 monitor_devices[i] = NULL;
4867 }
4868 monitor_device_index = 0;
4869
268a362c
AL		 4870 for (i = 0; i < MAX_NODES; i++) {
4871 node_mem[i] = 0;
4872 node_cpumask[i] = 0;
4873 }
4874
7c9d8e07 4875 nb_net_clients = 0;
268a362c 4876 nb_numa_nodes = 0;
7c9d8e07 4877 nb_nics = 0;
3b46e624 4878
26a5f13b 4879 tb_size = 0;
41bd639b
BS		 4880 autostart= 1;
4881
cd6f1169 4882 optind = 1;
0824d6fc 4883 for(;;) {
cd6f1169 4884 if (optind >= argc)
0824d6fc 4885 break;
cd6f1169
FB		 4886 r = argv[optind];
4887 if (r[0] != '-') {
9dfd7c7a 4888 hda_opts = drive_add(argv[optind++], HD_ALIAS, 0);
cd6f1169
FB		 4889 } else {
4890 const QEMUOption *popt;
4891
4892 optind++;
dff5efc8
PB		 4893 /* Treat --foo the same as -foo. */
4894 if (r[1] == '-')
4895 r++;
cd6f1169
FB		 4896 popt = qemu_options;
4897 for(;;) {
4898 if (!popt->name) {
5fafdf24 4899 fprintf(stderr, "%s: invalid option -- '%s'\n",
cd6f1169
FB		 4900 argv[0], r);
4901 exit(1);
4902 }
4903 if (!strcmp(popt->name, r + 1))
4904 break;
4905 popt++;
4906 }
4907 if (popt->flags & HAS_ARG) {
4908 if (optind >= argc) {
4909 fprintf(stderr, "%s: option '%s' requires an argument\n",
4910 argv[0], r);
4911 exit(1);
4912 }
4913 optarg = argv[optind++];
4914 } else {
4915 optarg = NULL;
4916 }
4917
4918 switch(popt->index) {
cc1daa40
FB		 4919 case QEMU_OPTION_M:
4920 machine = find_machine(optarg);
4921 if (!machine) {
4922 QEMUMachine *m;
4923 printf("Supported machines are:\n");
4924 for(m = first_machine; m != NULL; m = m->next) {
3f6599e6
MM		 4925 if (m->alias)
4926 printf("%-10s %s (alias of %s)\n",
4927 m->alias, m->desc, m->name);
cc1daa40 4928 printf("%-10s %s%s\n",
5fafdf24 4929 m->name, m->desc,
0c257437 4930 m->is_default ? " (default)" : "");
cc1daa40 4931 }
15f82208 4932 exit(*optarg != '?');
cc1daa40
FB		 4933 }
4934 break;
94fc95cd
JM		 4935 case QEMU_OPTION_cpu:
4936 /* hw initialization will check this */
15f82208 4937 if (*optarg == '?') {
c732abe2
JM		 4938/* XXX: implement xxx_cpu_list for targets that still miss it */
4939#if defined(cpu_list)
4940 cpu_list(stdout, &fprintf);
94fc95cd 4941#endif
15f82208 4942 exit(0);
94fc95cd
JM		 4943 } else {
4944 cpu_model = optarg;
4945 }
4946 break;
cd6f1169 4947 case QEMU_OPTION_initrd:
fc01f7e7
FB		 4948 initrd_filename = optarg;
4949 break;
cd6f1169 4950 case QEMU_OPTION_hda:
e4bcb14c 4951 if (cyls == 0)
9dfd7c7a 4952 hda_opts = drive_add(optarg, HD_ALIAS, 0);
e4bcb14c 4953 else
9dfd7c7a 4954 hda_opts = drive_add(optarg, HD_ALIAS
e4bcb14c 4955 ",cyls=%d,heads=%d,secs=%d%s",
609497ab 4956 0, cyls, heads, secs,
e4bcb14c
TS		 4957 translation == BIOS_ATA_TRANSLATION_LBA ?
4958 ",trans=lba" :
4959 translation == BIOS_ATA_TRANSLATION_NONE ?
4960 ",trans=none" : "");
4961 break;
cd6f1169 4962 case QEMU_OPTION_hdb:
cc1daa40
FB		 4963 case QEMU_OPTION_hdc:
4964 case QEMU_OPTION_hdd:
609497ab 4965 drive_add(optarg, HD_ALIAS, popt->index - QEMU_OPTION_hda);
fc01f7e7 4966 break;
e4bcb14c 4967 case QEMU_OPTION_drive:
609497ab 4968 drive_add(NULL, "%s", optarg);
e4bcb14c 4969 break;
d058fe03
GH		 4970 case QEMU_OPTION_set:
4971 if (qemu_set_option(optarg) != 0)
4972 exit(1);
4973 break;
3e3d5815 4974 case QEMU_OPTION_mtdblock:
609497ab 4975 drive_add(optarg, MTD_ALIAS);
3e3d5815 4976 break;
a1bb27b1 4977 case QEMU_OPTION_sd:
609497ab 4978 drive_add(optarg, SD_ALIAS);
a1bb27b1 4979 break;
86f55663 4980 case QEMU_OPTION_pflash:
609497ab 4981 drive_add(optarg, PFLASH_ALIAS);
86f55663 4982 break;
cd6f1169 4983 case QEMU_OPTION_snapshot:
33e3963e
FB		 4984 snapshot = 1;
4985 break;
cd6f1169 4986 case QEMU_OPTION_hdachs:
330d0414 4987 {
330d0414
FB		 4988 const char *p;
4989 p = optarg;
4990 cyls = strtol(p, (char **)&p, 0);
46d4767d
FB		 4991 if (cyls < 1 || cyls > 16383)
4992 goto chs_fail;
330d0414
FB		 4993 if (*p != ',')
4994 goto chs_fail;
4995 p++;
4996 heads = strtol(p, (char **)&p, 0);
46d4767d
FB		 4997 if (heads < 1 || heads > 16)
4998 goto chs_fail;
330d0414
FB		 4999 if (*p != ',')
5000 goto chs_fail;
5001 p++;
5002 secs = strtol(p, (char **)&p, 0);
46d4767d
FB		 5003 if (secs < 1 || secs > 63)
5004 goto chs_fail;
5005 if (*p == ',') {
5006 p++;
5007 if (!strcmp(p, "none"))
5008 translation = BIOS_ATA_TRANSLATION_NONE;
5009 else if (!strcmp(p, "lba"))
5010 translation = BIOS_ATA_TRANSLATION_LBA;
5011 else if (!strcmp(p, "auto"))
5012 translation = BIOS_ATA_TRANSLATION_AUTO;
5013 else
5014 goto chs_fail;
5015 } else if (*p != '\0') {
c4b1fcc0 5016 chs_fail:
46d4767d
FB		 5017 fprintf(stderr, "qemu: invalid physical CHS format\n");
5018 exit(1);
c4b1fcc0 5019 }
9dfd7c7a
GH		 5020 if (hda_opts != NULL) {
5021 char num[16];
5022 snprintf(num, sizeof(num), "%d", cyls);
5023 qemu_opt_set(hda_opts, "cyls", num);
5024 snprintf(num, sizeof(num), "%d", heads);
5025 qemu_opt_set(hda_opts, "heads", num);
5026 snprintf(num, sizeof(num), "%d", secs);
5027 qemu_opt_set(hda_opts, "secs", num);
5028 if (translation == BIOS_ATA_TRANSLATION_LBA)
5029 qemu_opt_set(hda_opts, "trans", "lba");
5030 if (translation == BIOS_ATA_TRANSLATION_NONE)
5031 qemu_opt_set(hda_opts, "trans", "none");
5032 }
330d0414
FB		 5033 }
5034 break;
268a362c
AL		 5035 case QEMU_OPTION_numa:
5036 if (nb_numa_nodes >= MAX_NODES) {
5037 fprintf(stderr, "qemu: too many NUMA nodes\n");
5038 exit(1);
5039 }
5040 numa_add(optarg);
5041 break;
cd6f1169 5042 case QEMU_OPTION_nographic:
993fbfdb 5043 display_type = DT_NOGRAPHIC;
a20dd508 5044 break;
4d3b6f6e
AZ		 5045#ifdef CONFIG_CURSES
5046 case QEMU_OPTION_curses:
993fbfdb 5047 display_type = DT_CURSES;
4d3b6f6e
AZ		 5048 break;
5049#endif
a171fe39
AZ		 5050 case QEMU_OPTION_portrait:
5051 graphic_rotate = 1;
5052 break;
cd6f1169 5053 case QEMU_OPTION_kernel:
a20dd508
FB		 5054 kernel_filename = optarg;
5055 break;
cd6f1169 5056 case QEMU_OPTION_append:
a20dd508 5057 kernel_cmdline = optarg;
313aa567 5058 break;
cd6f1169 5059 case QEMU_OPTION_cdrom:
609497ab 5060 drive_add(optarg, CDROM_ALIAS);
36b486bb 5061 break;
cd6f1169 5062 case QEMU_OPTION_boot:
28c5af54 5063 {
ef3adf68 5064 static const char * const params[] = {
95387491 5065 "order", "once", "menu", NULL
ef3adf68
JK		 5066 };
5067 char buf[sizeof(boot_devices)];
e0f084bf 5068 char *standard_boot_devices;
ef3adf68
JK		 5069 int legacy = 0;
5070
5071 if (!strchr(optarg, '=')) {
5072 legacy = 1;
5073 pstrcpy(buf, sizeof(buf), optarg);
5074 } else if (check_params(buf, sizeof(buf), params, optarg) < 0) {
5075 fprintf(stderr,
5076 "qemu: unknown boot parameter '%s' in '%s'\n",
5077 buf, optarg);
5078 exit(1);
5079 }
5080
5081 if (legacy ||
5082 get_param_value(buf, sizeof(buf), "order", optarg)) {
5083 boot_devices_bitmap = parse_bootdevices(buf);
5084 pstrcpy(boot_devices, sizeof(boot_devices), buf);
28c5af54 5085 }
e0f084bf
JK		 5086 if (!legacy) {
5087 if (get_param_value(buf, sizeof(buf),
5088 "once", optarg)) {
5089 boot_devices_bitmap |= parse_bootdevices(buf);
5090 standard_boot_devices = qemu_strdup(boot_devices);
5091 pstrcpy(boot_devices, sizeof(boot_devices), buf);
5092 qemu_register_reset(restore_boot_devices,
5093 standard_boot_devices);
5094 }
95387491
JK		 5095 if (get_param_value(buf, sizeof(buf),
5096 "menu", optarg)) {
5097 if (!strcmp(buf, "on")) {
5098 boot_menu = 1;
5099 } else if (!strcmp(buf, "off")) {
5100 boot_menu = 0;
5101 } else {
5102 fprintf(stderr,
5103 "qemu: invalid option value '%s'\n",
5104 buf);
5105 exit(1);
5106 }
5107 }
e0f084bf 5108 }
36b486bb
FB		 5109 }
5110 break;
cd6f1169 5111 case QEMU_OPTION_fda:
cd6f1169 5112 case QEMU_OPTION_fdb:
609497ab 5113 drive_add(optarg, FD_ALIAS, popt->index - QEMU_OPTION_fda);
c45886db 5114 break;
52ca8d6a
FB		 5115#ifdef TARGET_I386
5116 case QEMU_OPTION_no_fd_bootchk:
5117 fd_bootchk = 0;
5118 break;
5119#endif
7c9d8e07
FB		 5120 case QEMU_OPTION_net:
5121 if (nb_net_clients >= MAX_NET_CLIENTS) {
5122 fprintf(stderr, "qemu: too many network clients\n");
c4b1fcc0
FB		 5123 exit(1);
5124 }
fd5f393a 5125 net_clients[nb_net_clients] = optarg;
7c9d8e07 5126 nb_net_clients++;
702c651c 5127 break;
c7f74643
FB		 5128#ifdef CONFIG_SLIRP
5129 case QEMU_OPTION_tftp:
ad196a9d 5130 legacy_tftp_prefix = optarg;
9bf05444 5131 break;
47d5d01a 5132 case QEMU_OPTION_bootp:
ad196a9d 5133 legacy_bootp_filename = optarg;
47d5d01a 5134 break;
c94c8d64 5135#ifndef _WIN32
9d728e8c 5136 case QEMU_OPTION_smb:
ad196a9d 5137 net_slirp_smb(optarg);
9d728e8c 5138 break;
c94c8d64 5139#endif
9bf05444 5140 case QEMU_OPTION_redir:
f3546deb 5141 net_slirp_redir(optarg);
9bf05444 5142 break;
c7f74643 5143#endif
dc72ac14 5144 case QEMU_OPTION_bt:
bd3c948d 5145 add_device_config(DEV_BT, optarg);
dc72ac14 5146 break;
1d14ffa9 5147#ifdef HAS_AUDIO
1d14ffa9
FB		 5148 case QEMU_OPTION_audio_help:
5149 AUD_help ();
5150 exit (0);
5151 break;
5152 case QEMU_OPTION_soundhw:
5153 select_soundhw (optarg);
5154 break;
5155#endif
cd6f1169 5156 case QEMU_OPTION_h:
15f82208 5157 help(0);
cd6f1169 5158 break;
9bd7e6d9
PB		 5159 case QEMU_OPTION_version:
5160 version();
5161 exit(0);
5162 break;
00f82b8a
AJ		 5163 case QEMU_OPTION_m: {
5164 uint64_t value;
5165 char *ptr;
5166
5167 value = strtoul(optarg, &ptr, 10);
5168 switch (*ptr) {
5169 case 0: case 'M': case 'm':
5170 value <<= 20;
5171 break;
5172 case 'G': case 'g':
5173 value <<= 30;
5174 break;
5175 default:
5176 fprintf(stderr, "qemu: invalid ram size: %s\n", optarg);
cd6f1169
FB		 5177 exit(1);
5178 }
00f82b8a
AJ		 5179
5180 /* On 32-bit hosts, QEMU is limited by virtual address space */
4a1418e0 5181 if (value > (2047 << 20) && HOST_LONG_BITS == 32) {
00f82b8a
AJ		 5182 fprintf(stderr, "qemu: at most 2047 MB RAM can be simulated\n");
5183 exit(1);
5184 }
5185 if (value != (uint64_t)(ram_addr_t)value) {
5186 fprintf(stderr, "qemu: ram size too large\n");
5187 exit(1);
5188 }
5189 ram_size = value;
cd6f1169 5190 break;
00f82b8a 5191 }
cd6f1169
FB		 5192 case QEMU_OPTION_d:
5193 {
5194 int mask;
c7cd6a37 5195 const CPULogItem *item;
3b46e624 5196
cd6f1169
FB		 5197 mask = cpu_str_to_log_mask(optarg);
5198 if (!mask) {
5199 printf("Log items (comma separated):\n");
f193c797
FB		 5200 for(item = cpu_log_items; item->mask != 0; item++) {
5201 printf("%-10s %s\n", item->name, item->help);
5202 }
5203 exit(1);
cd6f1169
FB		 5204 }
5205 cpu_set_log(mask);
f193c797 5206 }
cd6f1169 5207 break;
cd6f1169 5208 case QEMU_OPTION_s:
59030a8c 5209 gdbstub_dev = "tcp::" DEFAULT_GDBSTUB_PORT;
cd6f1169 5210 break;
59030a8c
AL		 5211 case QEMU_OPTION_gdb:
5212 gdbstub_dev = optarg;
cd6f1169 5213 break;
cd6f1169 5214 case QEMU_OPTION_L:
5cea8590 5215 data_dir = optarg;
cd6f1169 5216 break;
1192dad8
JM		 5217 case QEMU_OPTION_bios:
5218 bios_name = optarg;
5219 break;
1b530a6d
AJ		 5220 case QEMU_OPTION_singlestep:
5221 singlestep = 1;
5222 break;
cd6f1169 5223 case QEMU_OPTION_S:
3c07f8e8 5224 autostart = 0;
cd6f1169 5225 break;
5824d651 5226#ifndef _WIN32
3d11d0eb
FB		 5227 case QEMU_OPTION_k:
5228 keyboard_layout = optarg;
5229 break;
5824d651 5230#endif
ee22c2f7
FB		 5231 case QEMU_OPTION_localtime:
5232 rtc_utc = 0;
5233 break;
3893c124 5234 case QEMU_OPTION_vga:
5235 select_vgahw (optarg);
1bfe856e 5236 break;
5824d651 5237#if defined(TARGET_PPC) || defined(TARGET_SPARC)
e9b137c2
FB		 5238 case QEMU_OPTION_g:
5239 {
5240 const char *p;
5241 int w, h, depth;
5242 p = optarg;
5243 w = strtol(p, (char **)&p, 10);
5244 if (w <= 0) {
5245 graphic_error:
5246 fprintf(stderr, "qemu: invalid resolution or depth\n");
5247 exit(1);
5248 }
5249 if (*p != 'x')
5250 goto graphic_error;
5251 p++;
5252 h = strtol(p, (char **)&p, 10);
5253 if (h <= 0)
5254 goto graphic_error;
5255 if (*p == 'x') {
5256 p++;
5257 depth = strtol(p, (char **)&p, 10);
5fafdf24 5258 if (depth != 8 && depth != 15 && depth != 16 &&
e9b137c2
FB		 5259 depth != 24 && depth != 32)
5260 goto graphic_error;
5261 } else if (*p == '\0') {
5262 depth = graphic_depth;
5263 } else {
5264 goto graphic_error;
5265 }
3b46e624 5266
e9b137c2
FB		 5267 graphic_width = w;
5268 graphic_height = h;
5269 graphic_depth = depth;
5270 }
5271 break;
5824d651 5272#endif
20d8a3ed
TS		 5273 case QEMU_OPTION_echr:
5274 {
5275 char *r;
5276 term_escape_char = strtol(optarg, &r, 0);
5277 if (r == optarg)
5278 printf("Bad argument to echr\n");
5279 break;
5280 }
82c643ff 5281 case QEMU_OPTION_monitor:
ddd9bbd9
JK		 5282 if (monitor_device_index >= MAX_MONITOR_DEVICES) {
5283 fprintf(stderr, "qemu: too many monitor devices\n");
5284 exit(1);
5285 }
5286 monitor_devices[monitor_device_index] = optarg;
5287 monitor_device_index++;
82c643ff
FB		 5288 break;
5289 case QEMU_OPTION_serial:
8d11df9e
FB		 5290 if (serial_device_index >= MAX_SERIAL_PORTS) {
5291 fprintf(stderr, "qemu: too many serial ports\n");
5292 exit(1);
5293 }
fd5f393a 5294 serial_devices[serial_device_index] = optarg;
8d11df9e 5295 serial_device_index++;
82c643ff 5296 break;
9dd986cc 5297 case QEMU_OPTION_watchdog:
09aaa160
MA		 5298 if (watchdog) {
5299 fprintf(stderr,
5300 "qemu: only one watchdog option may be given\n");
5301 return 1;
5302 }
5303 watchdog = optarg;
9dd986cc
RJ		 5304 break;
5305 case QEMU_OPTION_watchdog_action:
5306 if (select_watchdog_action(optarg) == -1) {
5307 fprintf(stderr, "Unknown -watchdog-action parameter\n");
5308 exit(1);
5309 }
5310 break;
51ecf136
AL		 5311 case QEMU_OPTION_virtiocon:
5312 if (virtio_console_index >= MAX_VIRTIO_CONSOLES) {
5313 fprintf(stderr, "qemu: too many virtio consoles\n");
5314 exit(1);
5315 }
5316 virtio_consoles[virtio_console_index] = optarg;
5317 virtio_console_index++;
5318 break;
6508fe59
FB		 5319 case QEMU_OPTION_parallel:
5320 if (parallel_device_index >= MAX_PARALLEL_PORTS) {
5321 fprintf(stderr, "qemu: too many parallel ports\n");
5322 exit(1);
5323 }
fd5f393a 5324 parallel_devices[parallel_device_index] = optarg;
6508fe59
FB		 5325 parallel_device_index++;
5326 break;
d63d307f
FB		 5327 case QEMU_OPTION_loadvm:
5328 loadvm = optarg;
5329 break;
5330 case QEMU_OPTION_full_screen:
5331 full_screen = 1;
5332 break;
667accab 5333#ifdef CONFIG_SDL
43523e93
TS		 5334 case QEMU_OPTION_no_frame:
5335 no_frame = 1;
5336 break;
3780e197
TS		 5337 case QEMU_OPTION_alt_grab:
5338 alt_grab = 1;
5339 break;
667accab
TS		 5340 case QEMU_OPTION_no_quit:
5341 no_quit = 1;
5342 break;
7d957bd8 5343 case QEMU_OPTION_sdl:
993fbfdb 5344 display_type = DT_SDL;
7d957bd8 5345 break;
667accab 5346#endif
f7cce898 5347 case QEMU_OPTION_pidfile:
93815bc2 5348 pid_file = optarg;
f7cce898 5349 break;
a09db21f
FB		 5350#ifdef TARGET_I386
5351 case QEMU_OPTION_win2k_hack:
5352 win2k_install_hack = 1;
5353 break;
73822ec8
AL		 5354 case QEMU_OPTION_rtc_td_hack:
5355 rtc_td_hack = 1;
5356 break;
8a92ea2f
AL		 5357 case QEMU_OPTION_acpitable:
5358 if(acpi_table_add(optarg) < 0) {
5359 fprintf(stderr, "Wrong acpi table provided\n");
5360 exit(1);
5361 }
5362 break;
b6f6e3d3
AL		 5363 case QEMU_OPTION_smbios:
5364 if(smbios_entry_add(optarg) < 0) {
5365 fprintf(stderr, "Wrong smbios provided\n");
5366 exit(1);
5367 }
5368 break;
a09db21f 5369#endif
7ba1e619
AL		 5370#ifdef CONFIG_KVM
5371 case QEMU_OPTION_enable_kvm:
5372 kvm_allowed = 1;
7ba1e619 5373 break;
d993e026 5374#endif
bb36d470
FB		 5375 case QEMU_OPTION_usb:
5376 usb_enabled = 1;
5377 break;
a594cfbf
FB		 5378 case QEMU_OPTION_usbdevice:
5379 usb_enabled = 1;
bd3c948d
GH		 5380 add_device_config(DEV_USB, optarg);
5381 break;
5382 case QEMU_OPTION_device:
f31d07d1
GH		 5383 opts = qemu_opts_parse(&qemu_device_opts, optarg, "driver");
5384 if (!opts) {
5385 fprintf(stderr, "parse error: %s\n", optarg);
5386 exit(1);
5387 }
a594cfbf 5388 break;
6a00d601 5389 case QEMU_OPTION_smp:
dc6b1c09 5390 smp_parse(optarg);
b2097003 5391 if (smp_cpus < 1) {
6a00d601
FB		 5392 fprintf(stderr, "Invalid number of CPUs\n");
5393 exit(1);
5394 }
6be68d7e
JS		 5395 if (max_cpus < smp_cpus) {
5396 fprintf(stderr, "maxcpus must be equal to or greater than "
5397 "smp\n");
5398 exit(1);
5399 }
5400 if (max_cpus > 255) {
5401 fprintf(stderr, "Unsupported number of maxcpus\n");
5402 exit(1);
5403 }
6a00d601 5404 break;
24236869 5405 case QEMU_OPTION_vnc:
993fbfdb 5406 display_type = DT_VNC;
73fc9742 5407 vnc_display = optarg;
24236869 5408 break;
5824d651 5409#ifdef TARGET_I386
6515b203
FB		 5410 case QEMU_OPTION_no_acpi:
5411 acpi_enabled = 0;
5412 break;
16b29ae1
AL		 5413 case QEMU_OPTION_no_hpet:
5414 no_hpet = 1;
5415 break;
7d4c3d53
MA		 5416 case QEMU_OPTION_balloon:
5417 if (balloon_parse(optarg) < 0) {
5418 fprintf(stderr, "Unknown -balloon argument %s\n", optarg);
5419 exit(1);
5420 }
df97b920 5421 break;
5824d651 5422#endif
d1beab82
FB		 5423 case QEMU_OPTION_no_reboot:
5424 no_reboot = 1;
5425 break;
b2f76161
AJ		 5426 case QEMU_OPTION_no_shutdown:
5427 no_shutdown = 1;
5428 break;
9467cd46
AZ		 5429 case QEMU_OPTION_show_cursor:
5430 cursor_hide = 0;
5431 break;
8fcb1b90
BS		 5432 case QEMU_OPTION_uuid:
5433 if(qemu_uuid_parse(optarg, qemu_uuid) < 0) {
5434 fprintf(stderr, "Fail to parse UUID string."
5435 " Wrong format.\n");
5436 exit(1);
5437 }
5438 break;
5824d651 5439#ifndef _WIN32
71e3ceb8
TS		 5440 case QEMU_OPTION_daemonize:
5441 daemonize = 1;
5442 break;
5824d651 5443#endif
9ae02555
TS		 5444 case QEMU_OPTION_option_rom:
5445 if (nb_option_roms >= MAX_OPTION_ROMS) {
5446 fprintf(stderr, "Too many option ROMs\n");
5447 exit(1);
5448 }
5449 option_rom[nb_option_roms] = optarg;
5450 nb_option_roms++;
5451 break;
5824d651 5452#if defined(TARGET_ARM) || defined(TARGET_M68K)
8e71621f
PB		 5453 case QEMU_OPTION_semihosting:
5454 semihosting_enabled = 1;
5455 break;
5824d651 5456#endif
c35734b2 5457 case QEMU_OPTION_name:
1889465a
AK		 5458 qemu_name = qemu_strdup(optarg);
5459 {
5460 char *p = strchr(qemu_name, ',');
5461 if (p != NULL) {
5462 *p++ = 0;
5463 if (strncmp(p, "process=", 8)) {
5464 fprintf(stderr, "Unknown subargument %s to -name", p);
5465 exit(1);
5466 }
5467 p += 8;
5468 set_proc_name(p);
5469 }
5470 }
c35734b2 5471 break;
95efd11c 5472#if defined(TARGET_SPARC) || defined(TARGET_PPC)
66508601
BS		 5473 case QEMU_OPTION_prom_env:
5474 if (nb_prom_envs >= MAX_PROM_ENVS) {
5475 fprintf(stderr, "Too many prom variables\n");
5476 exit(1);
5477 }
5478 prom_envs[nb_prom_envs] = optarg;
5479 nb_prom_envs++;
5480 break;
2b8f2d41
AZ		 5481#endif
5482#ifdef TARGET_ARM
5483 case QEMU_OPTION_old_param:
5484 old_param = 1;
05ebd537 5485 break;
66508601 5486#endif
f3dcfada
TS		 5487 case QEMU_OPTION_clock:
5488 configure_alarms(optarg);
5489 break;
7e0af5d0
FB		 5490 case QEMU_OPTION_startdate:
5491 {
5492 struct tm tm;
f6503059 5493 time_t rtc_start_date;
7e0af5d0 5494 if (!strcmp(optarg, "now")) {
f6503059 5495 rtc_date_offset = -1;
7e0af5d0
FB		 5496 } else {
5497 if (sscanf(optarg, "%d-%d-%dT%d:%d:%d",
5498 &tm.tm_year,
5499 &tm.tm_mon,
5500 &tm.tm_mday,
5501 &tm.tm_hour,
5502 &tm.tm_min,
5503 &tm.tm_sec) == 6) {
5504 /* OK */
5505 } else if (sscanf(optarg, "%d-%d-%d",
5506 &tm.tm_year,
5507 &tm.tm_mon,
5508 &tm.tm_mday) == 3) {
5509 tm.tm_hour = 0;
5510 tm.tm_min = 0;
5511 tm.tm_sec = 0;
5512 } else {
5513 goto date_fail;
5514 }
5515 tm.tm_year -= 1900;
5516 tm.tm_mon--;
3c6b2088 5517 rtc_start_date = mktimegm(&tm);
7e0af5d0
FB		 5518 if (rtc_start_date == -1) {
5519 date_fail:
5520 fprintf(stderr, "Invalid date format. Valid format are:\n"
5521 "'now' or '2006-06-17T16:01:21' or '2006-06-17'\n");
5522 exit(1);
5523 }
f6503059 5524 rtc_date_offset = time(NULL) - rtc_start_date;
7e0af5d0
FB		 5525 }
5526 }
5527 break;
26a5f13b
FB		 5528 case QEMU_OPTION_tb_size:
5529 tb_size = strtol(optarg, NULL, 0);
5530 if (tb_size < 0)
5531 tb_size = 0;
5532 break;
2e70f6ef
PB		 5533 case QEMU_OPTION_icount:
5534 use_icount = 1;
5535 if (strcmp(optarg, "auto") == 0) {
5536 icount_time_shift = -1;
5537 } else {
5538 icount_time_shift = strtol(optarg, NULL, 0);
5539 }
5540 break;
5bb7910a
AL		 5541 case QEMU_OPTION_incoming:
5542 incoming = optarg;
5543 break;
5824d651 5544#ifndef _WIN32
0858532e
AL		 5545 case QEMU_OPTION_chroot:
5546 chroot_dir = optarg;
5547 break;
5548 case QEMU_OPTION_runas:
5549 run_as = optarg;
5550 break;
e37630ca
AL		 5551#endif
5552#ifdef CONFIG_XEN
5553 case QEMU_OPTION_xen_domid:
5554 xen_domid = atoi(optarg);
5555 break;
5556 case QEMU_OPTION_xen_create:
5557 xen_mode = XEN_CREATE;
5558 break;
5559 case QEMU_OPTION_xen_attach:
5560 xen_mode = XEN_ATTACH;
5561 break;
5824d651 5562#endif
cd6f1169 5563 }
0824d6fc
FB		 5564 }
5565 }
330d0414 5566
e09a5267
DK		 5567 if (kvm_enabled()) {
5568 int ret;
5569
5570 ret = kvm_init(smp_cpus);
5571 if (ret < 0) {
5572 fprintf(stderr, "failed to initialize KVM\n");
5573 exit(1);
5574 }
5575 }
5576
5cea8590
PB		 5577 /* If no data_dir is specified then try to find it relative to the
5578 executable path. */
5579 if (!data_dir) {
5580 data_dir = find_datadir(argv[0]);
5581 }
5582 /* If all else fails use the install patch specified when building. */
5583 if (!data_dir) {
5584 data_dir = CONFIG_QEMU_SHAREDIR;
5585 }
5586
6be68d7e
JS		 5587 /*
5588 * Default to max_cpus = smp_cpus, in case the user doesn't
5589 * specify a max_cpus value.
5590 */
5591 if (!max_cpus)
5592 max_cpus = smp_cpus;
5593
3d878caa 5594 machine->max_cpus = machine->max_cpus ?: 1; /* Default to UP */
b2097003
AL		 5595 if (smp_cpus > machine->max_cpus) {
5596 fprintf(stderr, "Number of SMP cpus requested (%d), exceeds max cpus "
5597 "supported by machine `%s' (%d)\n", smp_cpus, machine->name,
5598 machine->max_cpus);
5599 exit(1);
5600 }
5601
993fbfdb 5602 if (display_type == DT_NOGRAPHIC) {
bc0129d9
AL		 5603 if (serial_device_index == 0)
5604 serial_devices[0] = "stdio";
5605 if (parallel_device_index == 0)
5606 parallel_devices[0] = "null";
ddd9bbd9
JK		 5607 if (strncmp(monitor_devices[0], "vc", 2) == 0) {
5608 monitor_devices[0] = "stdio";
5609 }
bc0129d9
AL		 5610 }
5611
71e3ceb8 5612#ifndef _WIN32
71e3ceb8
TS		 5613 if (daemonize) {
5614 pid_t pid;
5615
5616 if (pipe(fds) == -1)
5617 exit(1);
5618
5619 pid = fork();
5620 if (pid > 0) {
5621 uint8_t status;
5622 ssize_t len;
5623
5624 close(fds[1]);
5625
5626 again:
93815bc2
TS		 5627 len = read(fds[0], &status, 1);
5628 if (len == -1 && (errno == EINTR))
5629 goto again;
5630
5631 if (len != 1)
5632 exit(1);
5633 else if (status == 1) {
5634 fprintf(stderr, "Could not acquire pidfile\n");
5635 exit(1);
5636 } else
5637 exit(0);
71e3ceb8 5638 } else if (pid < 0)
93815bc2 5639 exit(1);
71e3ceb8
TS		 5640
5641 setsid();
5642
5643 pid = fork();
5644 if (pid > 0)
5645 exit(0);
5646 else if (pid < 0)
5647 exit(1);
5648
5649 umask(027);
71e3ceb8
TS		 5650
5651 signal(SIGTSTP, SIG_IGN);
5652 signal(SIGTTOU, SIG_IGN);
5653 signal(SIGTTIN, SIG_IGN);
5654 }
71e3ceb8 5655
aa26bb2d 5656 if (pid_file && qemu_create_pidfile(pid_file) != 0) {
93815bc2
TS		 5657 if (daemonize) {
5658 uint8_t status = 1;
5659 write(fds[1], &status, 1);
5660 } else
5661 fprintf(stderr, "Could not acquire pid file\n");
5662 exit(1);
5663 }
b9e82a59 5664#endif
93815bc2 5665
3fcf7b6b
AL		 5666 if (qemu_init_main_loop()) {
5667 fprintf(stderr, "qemu_init_main_loop failed\n");
5668 exit(1);
5669 }
a20dd508 5670 linux_boot = (kernel_filename != NULL);
6c41b272 5671
f8d39c01
TS		 5672 if (!linux_boot && *kernel_cmdline != '\0') {
5673 fprintf(stderr, "-append only allowed with -kernel option\n");
5674 exit(1);
5675 }
5676
5677 if (!linux_boot && initrd_filename != NULL) {
5678 fprintf(stderr, "-initrd only allowed with -kernel option\n");
5679 exit(1);
5680 }
5681
bf65f53f
FN		 5682#ifndef _WIN32
5683 /* Win32 doesn't support line-buffering and requires size >= 2 */
b118d61e 5684 setvbuf(stdout, NULL, _IOLBF, 0);
bf65f53f 5685#endif
3b46e624 5686
634fce96 5687 init_timers();
7183b4b4
AL		 5688 if (init_timer_alarm() < 0) {
5689 fprintf(stderr, "could not initialize alarm timer\n");
5690 exit(1);
5691 }
2e70f6ef
PB		 5692 if (use_icount && icount_time_shift < 0) {
5693 use_icount = 2;
5694 /* 125MIPS seems a reasonable initial guess at the guest speed.
5695 It will be corrected fairly quickly anyway. */
5696 icount_time_shift = 3;
5697 init_icount_adjust();
5698 }
634fce96 5699
fd1dff4b
FB		 5700#ifdef _WIN32
5701 socket_init();
5702#endif
5703
7c9d8e07
FB		 5704 /* init network clients */
5705 if (nb_net_clients == 0) {
5706 /* if no clients, we use a default config */
f441b28b
AL		 5707 net_clients[nb_net_clients++] = "nic";
5708#ifdef CONFIG_SLIRP
5709 net_clients[nb_net_clients++] = "user";
5710#endif
c20709aa
FB		 5711 }
5712
7c9d8e07 5713 for(i = 0;i < nb_net_clients; i++) {
9ad97e65 5714 if (net_client_parse(net_clients[i]) < 0)
7c9d8e07 5715 exit(1);
702c651c 5716 }
f1510b2c 5717
406c8df3
GC		 5718 net_boot = (boot_devices_bitmap >> ('n' - 'a')) & 0xF;
5719 net_set_boot_mask(net_boot);
5720
5721 net_client_check();
eec85c2a 5722
dc72ac14 5723 /* init the bluetooth world */
bd3c948d
GH		 5724 if (foreach_device_config(DEV_BT, bt_parse))
5725 exit(1);
dc72ac14 5726
0824d6fc 5727 /* init the memory */
94a6b54f
PB		 5728 if (ram_size == 0)
5729 ram_size = DEFAULT_RAM_SIZE * 1024 * 1024;
9ae02555 5730
26a5f13b
FB		 5731 /* init the dynamic translator */
5732 cpu_exec_init_all(tb_size * 1024 * 1024);
5733
5905b2e5 5734 bdrv_init();
c4b1fcc0 5735
e4bcb14c 5736 /* we always create the cdrom drive, even if no disk is there */
3b0ba927 5737 drive_add(NULL, CDROM_ALIAS);
c4b1fcc0 5738
9d413d1d 5739 /* we always create at least one floppy */
3b0ba927 5740 drive_add(NULL, FD_ALIAS, 0);
86f55663 5741
9d413d1d 5742 /* we always create one sd slot, even if no card is in it */
3b0ba927 5743 drive_add(NULL, SD_ALIAS);
9d413d1d 5744
e4bcb14c 5745 /* open the virtual block devices */
9dfd7c7a 5746 if (snapshot)
7282a033
GH		 5747 qemu_opts_foreach(&qemu_drive_opts, drive_enable_snapshot, NULL, 0);
5748 if (qemu_opts_foreach(&qemu_drive_opts, drive_init_func, machine, 1) != 0)
9dfd7c7a 5749 exit(1);
3e3d5815 5750
c88676f8 5751 register_savevm("timer", 0, 2, timer_save, timer_load, NULL);
475e4277 5752 register_savevm_live("ram", 0, 3, ram_save_live, NULL, ram_load, NULL);
8a7ddc38 5753
3023f332 5754 /* Maintain compatibility with multiple stdio monitors */
ddd9bbd9 5755 if (!strcmp(monitor_devices[0],"stdio")) {
3023f332
AL		 5756 for (i = 0; i < MAX_SERIAL_PORTS; i++) {
5757 const char *devname = serial_devices[i];
5758 if (devname && !strcmp(devname,"mon:stdio")) {
ddd9bbd9 5759 monitor_devices[0] = NULL;
3023f332
AL		 5760 break;
5761 } else if (devname && !strcmp(devname,"stdio")) {
ddd9bbd9 5762 monitor_devices[0] = NULL;
3023f332
AL		 5763 serial_devices[i] = "mon:stdio";
5764 break;
5765 }
5766 }
5767 }
5768
268a362c
AL		 5769 if (nb_numa_nodes > 0) {
5770 int i;
5771
5772 if (nb_numa_nodes > smp_cpus) {
5773 nb_numa_nodes = smp_cpus;
5774 }
5775
5776 /* If no memory size if given for any node, assume the default case
5777 * and distribute the available memory equally across all nodes
5778 */
5779 for (i = 0; i < nb_numa_nodes; i++) {
5780 if (node_mem[i] != 0)
5781 break;
5782 }
5783 if (i == nb_numa_nodes) {
5784 uint64_t usedmem = 0;
5785
5786 /* On Linux, the each node's border has to be 8MB aligned,
5787 * the final node gets the rest.
5788 */
5789 for (i = 0; i < nb_numa_nodes - 1; i++) {
5790 node_mem[i] = (ram_size / nb_numa_nodes) & ~((1 << 23UL) - 1);
5791 usedmem += node_mem[i];
5792 }
5793 node_mem[i] = ram_size - usedmem;
5794 }
5795
5796 for (i = 0; i < nb_numa_nodes; i++) {
5797 if (node_cpumask[i] != 0)
5798 break;
5799 }
5800 /* assigning the VCPUs round-robin is easier to implement, guest OSes
5801 * must cope with this anyway, because there are BIOSes out there in
5802 * real machines which also use this scheme.
5803 */
5804 if (i == nb_numa_nodes) {
5805 for (i = 0; i < smp_cpus; i++) {
5806 node_cpumask[i % nb_numa_nodes] |= 1 << i;
5807 }
5808 }
5809 }
5810
ddd9bbd9
JK		 5811 for (i = 0; i < MAX_MONITOR_DEVICES; i++) {
5812 const char *devname = monitor_devices[i];
5813 if (devname && strcmp(devname, "none")) {
5814 char label[32];
5815 if (i == 0) {
5816 snprintf(label, sizeof(label), "monitor");
5817 } else {
5818 snprintf(label, sizeof(label), "monitor%d", i);
5819 }
5820 monitor_hds[i] = qemu_chr_open(label, devname, NULL);
5821 if (!monitor_hds[i]) {
5822 fprintf(stderr, "qemu: could not open monitor device '%s'\n",
5823 devname);
5824 exit(1);
5825 }
4c621805
AL		 5826 }
5827 }
5828
2796dae0
AL		 5829 for(i = 0; i < MAX_SERIAL_PORTS; i++) {
5830 const char *devname = serial_devices[i];
5831 if (devname && strcmp(devname, "none")) {
5832 char label[32];
5833 snprintf(label, sizeof(label), "serial%d", i);
ceecf1d1 5834 serial_hds[i] = qemu_chr_open(label, devname, NULL);
2796dae0
AL		 5835 if (!serial_hds[i]) {
5836 fprintf(stderr, "qemu: could not open serial device '%s'\n",
5837 devname);
5838 exit(1);
5839 }
5840 }
5841 }
5842
5843 for(i = 0; i < MAX_PARALLEL_PORTS; i++) {
5844 const char *devname = parallel_devices[i];
5845 if (devname && strcmp(devname, "none")) {
5846 char label[32];
5847 snprintf(label, sizeof(label), "parallel%d", i);
ceecf1d1 5848 parallel_hds[i] = qemu_chr_open(label, devname, NULL);
2796dae0
AL		 5849 if (!parallel_hds[i]) {
5850 fprintf(stderr, "qemu: could not open parallel device '%s'\n",
5851 devname);
5852 exit(1);
5853 }
5854 }
5855 }
5856
5857 for(i = 0; i < MAX_VIRTIO_CONSOLES; i++) {
5858 const char *devname = virtio_consoles[i];
5859 if (devname && strcmp(devname, "none")) {
5860 char label[32];
5861 snprintf(label, sizeof(label), "virtcon%d", i);
ceecf1d1 5862 virtcon_hds[i] = qemu_chr_open(label, devname, NULL);
2796dae0
AL		 5863 if (!virtcon_hds[i]) {
5864 fprintf(stderr, "qemu: could not open virtio console '%s'\n",
5865 devname);
5866 exit(1);
5867 }
5868 }
5869 }
5870
aae9460e
PB		 5871 module_call_init(MODULE_INIT_DEVICE);
5872
09aaa160
MA		 5873 if (watchdog) {
5874 i = select_watchdog(watchdog);
5875 if (i > 0)
5876 exit (i == 1 ? 1 : 0);
5877 }
5878
b6b61144
GH		 5879 if (machine->compat_props) {
5880 qdev_prop_register_compat(machine->compat_props);
5881 }
fbe1b595 5882 machine->init(ram_size, boot_devices,
3023f332
AL		 5883 kernel_filename, kernel_cmdline, initrd_filename, cpu_model);
5884
268a362c 5885
67b3b71d
JQ		 5886#ifndef _WIN32
5887 /* must be after terminal init, SDL library changes signal handlers */
5888 sighandler_setup();
5889#endif
5890
268a362c
AL		 5891 for (env = first_cpu; env != NULL; env = env->next_cpu) {
5892 for (i = 0; i < nb_numa_nodes; i++) {
5893 if (node_cpumask[i] & (1 << env->cpu_index)) {
5894 env->numa_node = i;
5895 }
5896 }
5897 }
5898
6f338c34
AL		 5899 current_machine = machine;
5900
3023f332
AL		 5901 /* init USB devices */
5902 if (usb_enabled) {
bd3c948d 5903 foreach_device_config(DEV_USB, usb_parse);
3023f332
AL		 5904 }
5905
bd3c948d 5906 /* init generic devices */
f31d07d1 5907 if (qemu_opts_foreach(&qemu_device_opts, device_init_func, NULL, 1) != 0)
bd3c948d
GH		 5908 exit(1);
5909
8f391ab4
AL		 5910 if (!display_state)
5911 dumb_display_init();
3023f332
AL		 5912 /* just use the first displaystate for the moment */
5913 ds = display_state;
993fbfdb
AL		 5914
5915 if (display_type == DT_DEFAULT) {
5916#if defined(CONFIG_SDL) || defined(CONFIG_COCOA)
5917 display_type = DT_SDL;
5918#else
5919 display_type = DT_VNC;
5920 vnc_display = "localhost:0,to=99";
5921 show_vnc_port = 1;
5922#endif
5923 }
5924
5925
5926 switch (display_type) {
5927 case DT_NOGRAPHIC:
5928 break;
4d3b6f6e 5929#if defined(CONFIG_CURSES)
993fbfdb
AL		 5930 case DT_CURSES:
5931 curses_display_init(ds, full_screen);
5932 break;
4d3b6f6e 5933#endif
5b0753e0 5934#if defined(CONFIG_SDL)
993fbfdb
AL		 5935 case DT_SDL:
5936 sdl_display_init(ds, full_screen, no_frame);
5937 break;
5b0753e0 5938#elif defined(CONFIG_COCOA)
993fbfdb
AL		 5939 case DT_SDL:
5940 cocoa_display_init(ds, full_screen);
5941 break;
313aa567 5942#endif
993fbfdb
AL		 5943 case DT_VNC:
5944 vnc_display_init(ds);
5945 if (vnc_display_open(ds, vnc_display) < 0)
5946 exit(1);
f92f8afe 5947
993fbfdb
AL		 5948 if (show_vnc_port) {
5949 printf("VNC server running on `%s'\n", vnc_display_local_addr(ds));
f92f8afe 5950 }
993fbfdb
AL		 5951 break;
5952 default:
5953 break;
313aa567 5954 }
7d957bd8 5955 dpy_resize(ds);
5b08fc10 5956
3023f332
AL		 5957 dcl = ds->listeners;
5958 while (dcl != NULL) {
5959 if (dcl->dpy_refresh != NULL) {
5960 ds->gui_timer = qemu_new_timer(rt_clock, gui_update, ds);
5961 qemu_mod_timer(ds->gui_timer, qemu_get_clock(rt_clock));
20d8a3ed 5962 }
3023f332 5963 dcl = dcl->next;
20d8a3ed 5964 }
3023f332 5965
993fbfdb 5966 if (display_type == DT_NOGRAPHIC || display_type == DT_VNC) {
9043b62d
BS		 5967 nographic_timer = qemu_new_timer(rt_clock, nographic_update, NULL);
5968 qemu_mod_timer(nographic_timer, qemu_get_clock(rt_clock));
5969 }
5970
2796dae0 5971 text_consoles_set_display(display_state);
2970a6c9 5972 qemu_chr_initial_reset();
2796dae0 5973
ddd9bbd9
JK		 5974 for (i = 0; i < MAX_MONITOR_DEVICES; i++) {
5975 if (monitor_devices[i] && monitor_hds[i]) {
5976 monitor_init(monitor_hds[i],
5977 MONITOR_USE_READLINE |
5978 ((i == 0) ? MONITOR_IS_DEFAULT : 0));
5979 }
5980 }
82c643ff 5981
8d11df9e 5982 for(i = 0; i < MAX_SERIAL_PORTS; i++) {
c03b0f0f 5983 const char *devname = serial_devices[i];
fd5f393a 5984 if (devname && strcmp(devname, "none")) {
af3a9031 5985 if (strstart(devname, "vc", 0))
7ba1260a 5986 qemu_chr_printf(serial_hds[i], "serial%d console\r\n", i);
8d11df9e 5987 }
82c643ff 5988 }
82c643ff 5989
6508fe59 5990 for(i = 0; i < MAX_PARALLEL_PORTS; i++) {
c03b0f0f 5991 const char *devname = parallel_devices[i];
fd5f393a 5992 if (devname && strcmp(devname, "none")) {
af3a9031 5993 if (strstart(devname, "vc", 0))
7ba1260a 5994 qemu_chr_printf(parallel_hds[i], "parallel%d console\r\n", i);
6508fe59
FB		 5995 }
5996 }
5997
9ede2fde
AL		 5998 for(i = 0; i < MAX_VIRTIO_CONSOLES; i++) {
5999 const char *devname = virtio_consoles[i];
2796dae0 6000 if (virtcon_hds[i] && devname) {
9ede2fde
AL		 6001 if (strstart(devname, "vc", 0))
6002 qemu_chr_printf(virtcon_hds[i], "virtio console%d\r\n", i);
6003 }
6004 }
6005
59030a8c
AL		 6006 if (gdbstub_dev && gdbserver_start(gdbstub_dev) < 0) {
6007 fprintf(stderr, "qemu: could not open gdbserver on device '%s'\n",
6008 gdbstub_dev);
6009 exit(1);
45669e00 6010 }
45669e00 6011
05f2401e
JQ		 6012 if (loadvm) {
6013 if (load_vmstate(cur_mon, loadvm) < 0) {
6014 autostart = 0;
6015 }
6016 }
d63d307f 6017
2bb8c10c 6018 if (incoming) {
5bb7910a 6019 qemu_start_incoming_migration(incoming);
6b99dadc 6020 } else if (autostart) {
c0f4ce77 6021 vm_start();
6b99dadc 6022 }
ffd843bc 6023
b9e82a59 6024#ifndef _WIN32
71e3ceb8
TS		 6025 if (daemonize) {
6026 uint8_t status = 0;
6027 ssize_t len;
71e3ceb8
TS		 6028
6029 again1:
6030 len = write(fds[1], &status, 1);
6031 if (len == -1 && (errno == EINTR))
6032 goto again1;
6033
6034 if (len != 1)
6035 exit(1);
6036
bd54b863 6037 chdir("/");
aeb30be6 6038 TFR(fd = open("/dev/null", O_RDWR));
71e3ceb8
TS		 6039 if (fd == -1)
6040 exit(1);
0858532e 6041 }
71e3ceb8 6042
0858532e
AL		 6043 if (run_as) {
6044 pwd = getpwnam(run_as);
6045 if (!pwd) {
6046 fprintf(stderr, "User \"%s\" doesn't exist\n", run_as);
6047 exit(1);
6048 }
6049 }
6050
6051 if (chroot_dir) {
6052 if (chroot(chroot_dir) < 0) {
6053 fprintf(stderr, "chroot failed\n");
6054 exit(1);
6055 }
6056 chdir("/");
6057 }
6058
6059 if (run_as) {
6060 if (setgid(pwd->pw_gid) < 0) {
6061 fprintf(stderr, "Failed to setgid(%d)\n", pwd->pw_gid);
6062 exit(1);
6063 }
6064 if (setuid(pwd->pw_uid) < 0) {
6065 fprintf(stderr, "Failed to setuid(%d)\n", pwd->pw_uid);
6066 exit(1);
6067 }
6068 if (setuid(0) != -1) {
6069 fprintf(stderr, "Dropping privileges failed\n");
6070 exit(1);
6071 }
6072 }
0858532e
AL		 6073
6074 if (daemonize) {
6075 dup2(fd, 0);
6076 dup2(fd, 1);
6077 dup2(fd, 2);
71e3ceb8 6078
0858532e 6079 close(fd);
71e3ceb8 6080 }
b9e82a59 6081#endif
71e3ceb8 6082
8a7ddc38 6083 main_loop();
40c3bac3 6084 quit_timers();
63a01ef8 6085 net_cleanup();
b46a8906 6086
0824d6fc
FB		 6087 return 0;
6088}
Qemu copy for testing