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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
BS		 33#include "config-host.h"
34
67b915a5 35#ifndef _WIN32
5cea8590 36#include <libgen.h>
0858532e 37#include <pwd.h>
67b915a5 38#include <sys/times.h>
f1510b2c 39#include <sys/wait.h>
67b915a5 40#include <termios.h>
67b915a5 41#include <sys/mman.h>
f1510b2c 42#include <sys/ioctl.h>
24646c7e 43#include <sys/resource.h>
f1510b2c 44#include <sys/socket.h>
c94c8d64 45#include <netinet/in.h>
24646c7e 46#include <net/if.h>
24646c7e 47#include <arpa/inet.h>
9d728e8c 48#include <dirent.h>
7c9d8e07 49#include <netdb.h>
cb4b976b 50#include <sys/select.h>
71e72a19 51#ifdef CONFIG_BSD
7d3505c5 52#include <sys/stat.h>
a167ba50 53#if defined(__FreeBSD__) || defined(__FreeBSD_kernel__) || defined(__DragonFly__)
7d3505c5 54#include <libutil.h>
24646c7e
BS		 55#else
56#include <util.h>
128ab2ff 57#endif
bbe813a2 58#else
223f0d72 59#ifdef __linux__
7d3505c5
FB		 60#include <pty.h>
61#include <malloc.h>
fd872598 62#include <linux/rtc.h>
1889465a 63#include <sys/prctl.h>
bd494f4c
TS		 64
65/* For the benefit of older linux systems which don't supply it,
66 we use a local copy of hpet.h. */
67/* #include <linux/hpet.h> */
68#include "hpet.h"
69
e57a8c0e 70#include <linux/ppdev.h>
5867c88a 71#include <linux/parport.h>
223f0d72
BS		 72#endif
73#ifdef __sun__
d5d10bc3
TS		 74#include <sys/stat.h>
75#include <sys/ethernet.h>
76#include <sys/sockio.h>
d5d10bc3
TS		 77#include <netinet/arp.h>
78#include <netinet/in.h>
79#include <netinet/in_systm.h>
80#include <netinet/ip.h>
81#include <netinet/ip_icmp.h> // must come after ip.h
82#include <netinet/udp.h>
83#include <netinet/tcp.h>
84#include <net/if.h>
85#include <syslog.h>
86#include <stropts.h>
8d32cf0e
BS		 87/* See MySQL bug #7156 (http://bugs.mysql.com/bug.php?id=7156) for
88 discussion about Solaris header problems */
89extern int madvise(caddr_t, size_t, int);
67b915a5 90#endif
7d3505c5 91#endif
ec530c81 92#endif
67b915a5 93
9892fbfb
BS		 94#if defined(__OpenBSD__)
95#include <util.h>
96#endif
97
8a16d273
TS		 98#if defined(CONFIG_VDE)
99#include <libvdeplug.h>
100#endif
101
67b915a5 102#ifdef _WIN32
49dc768d 103#include <windows.h>
4fddf62a 104#include <mmsystem.h>
67b915a5
FB		 105#endif
106
73332e5c 107#ifdef CONFIG_SDL
59a36a2f 108#if defined(__APPLE__) || defined(main)
6693665a 109#include <SDL.h>
880fec5d 110int qemu_main(int argc, char **argv, char **envp);
111int main(int argc, char **argv)
112{
59a36a2f 113 return qemu_main(argc, argv, NULL);
880fec5d 114}
115#undef main
116#define main qemu_main
96bcd4f8 117#endif
73332e5c 118#endif /* CONFIG_SDL */
0824d6fc 119
5b0753e0
FB		 120#ifdef CONFIG_COCOA
121#undef main
122#define main qemu_main
123#endif /* CONFIG_COCOA */
124
511d2b14
BS		 125#include "hw/hw.h"
126#include "hw/boards.h"
127#include "hw/usb.h"
128#include "hw/pcmcia.h"
129#include "hw/pc.h"
130#include "hw/audiodev.h"
131#include "hw/isa.h"
132#include "hw/baum.h"
133#include "hw/bt.h"
9dd986cc 134#include "hw/watchdog.h"
b6f6e3d3 135#include "hw/smbios.h"
e37630ca 136#include "hw/xen.h"
bd3c948d 137#include "hw/qdev.h"
45a50b16 138#include "hw/loader.h"
5ef4efa4 139#include "bt-host.h"
511d2b14 140#include "net.h"
68ac40d2 141#include "net/slirp.h"
511d2b14
BS		 142#include "monitor.h"
143#include "console.h"
144#include "sysemu.h"
145#include "gdbstub.h"
146#include "qemu-timer.h"
147#include "qemu-char.h"
148#include "cache-utils.h"
149#include "block.h"
c163b5ca 150#include "block_int.h"
151#include "block-migration.h"
a718acec 152#include "dma.h"
511d2b14
BS		 153#include "audio/audio.h"
154#include "migration.h"
155#include "kvm.h"
156#include "balloon.h"
d3f24367 157#include "qemu-option.h"
7282a033 158#include "qemu-config.h"
e78c48ec 159#include "qemu-objects.h"
511d2b14 160
0824d6fc 161#include "disas.h"
fc01f7e7 162
8a7ddc38 163#include "exec-all.h"
0824d6fc 164
511d2b14
BS		 165#include "qemu_socket.h"
166
d918f23e 167#include "slirp/libslirp.h"
511d2b14 168
72cf2d4f
BS		 169#include "qemu-queue.h"
170
9dc63a1e
BS		 171//#define DEBUG_NET
172//#define DEBUG_SLIRP
330d0414 173
1bfe856e 174#define DEFAULT_RAM_SIZE 128
313aa567 175
98b19252
AS		 176#define MAX_VIRTIO_CONSOLES 1
177
5cea8590 178static const char *data_dir;
1192dad8 179const char *bios_name = NULL;
e4bcb14c 180/* Note: drives_table[MAX_DRIVES] is a dummy block driver if none available
faea38e7 181 to store the VM snapshots */
72cf2d4f
BS		 182struct drivelist drives = QTAILQ_HEAD_INITIALIZER(drives);
183struct driveoptlist driveopts = QTAILQ_HEAD_INITIALIZER(driveopts);
cb5a7aa8 184enum vga_retrace_method vga_retrace_method = VGA_RETRACE_DUMB;
3023f332 185static DisplayState *display_state;
993fbfdb 186DisplayType display_type = DT_DEFAULT;
3d11d0eb 187const char* keyboard_layout = NULL;
c227f099 188ram_addr_t ram_size;
c4b1fcc0 189int nb_nics;
7c9d8e07 190NICInfo nd_table[MAX_NICS];
8a7ddc38 191int vm_running;
d399f677 192int autostart;
f6503059
AZ		 193static int rtc_utc = 1;
194static int rtc_date_offset = -1; /* -1 means no change */
6875204c 195QEMUClock *rtc_clock;
64465297 196int vga_interface_type = VGA_NONE;
d827220b
FB		 197#ifdef TARGET_SPARC
198int graphic_width = 1024;
199int graphic_height = 768;
eee0b836 200int graphic_depth = 8;
d827220b 201#else
1bfe856e
FB		 202int graphic_width = 800;
203int graphic_height = 600;
e9b137c2 204int graphic_depth = 15;
eee0b836 205#endif
dbed7e40 206static int full_screen = 0;
634a21f6 207#ifdef CONFIG_SDL
dbed7e40 208static int no_frame = 0;
634a21f6 209#endif
667accab 210int no_quit = 0;
8d11df9e 211CharDriverState *serial_hds[MAX_SERIAL_PORTS];
6508fe59 212CharDriverState *parallel_hds[MAX_PARALLEL_PORTS];
9ede2fde 213CharDriverState *virtcon_hds[MAX_VIRTIO_CONSOLES];
a09db21f
FB		 214#ifdef TARGET_I386
215int win2k_install_hack = 0;
73822ec8 216int rtc_td_hack = 0;
a09db21f 217#endif
bb36d470 218int usb_enabled = 0;
1b530a6d 219int singlestep = 0;
6a00d601 220int smp_cpus = 1;
6be68d7e 221int max_cpus = 0;
dc6b1c09
AP		 222int smp_cores = 1;
223int smp_threads = 1;
73fc9742 224const char *vnc_display;
6515b203 225int acpi_enabled = 1;
16b29ae1 226int no_hpet = 0;
52ca8d6a 227int fd_bootchk = 1;
d1beab82 228int no_reboot = 0;
b2f76161 229int no_shutdown = 0;
9467cd46 230int cursor_hide = 1;
a171fe39 231int graphic_rotate = 0;
6b35e7bf 232uint8_t irq0override = 1;
b9e82a59 233#ifndef _WIN32
71e3ceb8 234int daemonize = 0;
b9e82a59 235#endif
09aaa160 236const char *watchdog;
9ae02555
TS		 237const char *option_rom[MAX_OPTION_ROMS];
238int nb_option_roms;
8e71621f 239int semihosting_enabled = 0;
2b8f2d41
AZ		 240#ifdef TARGET_ARM
241int old_param = 0;
242#endif
c35734b2 243const char *qemu_name;
3780e197 244int alt_grab = 0;
0ca9f8a4 245int ctrl_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
998bbd74 274static int default_serial = 1;
6a5e8b0e 275static int default_parallel = 1;
986c5f78 276static int default_virtcon = 1;
abdeed06 277static int default_monitor = 1;
64465297 278static int default_vga = 1;
ac33f8fa
GH		 279static int default_floppy = 1;
280static int default_cdrom = 1;
281static int default_sdcard = 1;
998bbd74
GH		 282
283static struct {
284 const char *driver;
285 int *flag;
286} default_list[] = {
6a5e8b0e
GH		 287 { .driver = "isa-serial", .flag = &default_serial },
288 { .driver = "isa-parallel", .flag = &default_parallel },
d8bcbabf
GH		 289 { .driver = "isa-fdc", .flag = &default_floppy },
290 { .driver = "ide-drive", .flag = &default_cdrom },
392ecf54
AS		 291 { .driver = "virtio-serial-pci", .flag = &default_virtcon },
292 { .driver = "virtio-serial-s390", .flag = &default_virtcon },
293 { .driver = "virtio-serial", .flag = &default_virtcon },
64465297 294 { .driver = "VGA", .flag = &default_vga },
69fd02ee
GH		 295 { .driver = "cirrus-vga", .flag = &default_vga },
296 { .driver = "vmware-svga", .flag = &default_vga },
998bbd74
GH		 297};
298
299static int default_driver_check(QemuOpts *opts, void *opaque)
300{
301 const char *driver = qemu_opt_get(opts, "driver");
302 int i;
303
304 if (!driver)
305 return 0;
306 for (i = 0; i < ARRAY_SIZE(default_list); i++) {
307 if (strcmp(default_list[i].driver, driver) != 0)
308 continue;
309 *(default_list[i].flag) = 0;
310 }
311 return 0;
312}
313
0824d6fc 314/***********************************************************/
26aa7d72
FB		 315/* x86 ISA bus support */
316
c227f099 317target_phys_addr_t isa_mem_base = 0;
3de388f6 318PicState2 *isa_pic;
0824d6fc 319
0824d6fc 320/***********************************************************/
0824d6fc
FB		 321void hw_error(const char *fmt, ...)
322{
323 va_list ap;
6a00d601 324 CPUState *env;
0824d6fc
FB		 325
326 va_start(ap, fmt);
327 fprintf(stderr, "qemu: hardware error: ");
328 vfprintf(stderr, fmt, ap);
329 fprintf(stderr, "\n");
6a00d601
FB		 330 for(env = first_cpu; env != NULL; env = env->next_cpu) {
331 fprintf(stderr, "CPU #%d:\n", env->cpu_index);
0824d6fc 332#ifdef TARGET_I386
6a00d601 333 cpu_dump_state(env, stderr, fprintf, X86_DUMP_FPU);
c45886db 334#else
6a00d601 335 cpu_dump_state(env, stderr, fprintf, 0);
0824d6fc 336#endif
6a00d601 337 }
0824d6fc
FB		 338 va_end(ap);
339 abort();
340}
1889465a
AK		 341
342static void set_proc_name(const char *s)
343{
6ca8d0fd 344#if defined(__linux__) && defined(PR_SET_NAME)
1889465a
AK		 345 char name[16];
346 if (!s)
347 return;
348 name[sizeof(name) - 1] = 0;
349 strncpy(name, s, sizeof(name));
350 /* Could rewrite argv[0] too, but that's a bit more complicated.
351 This simple way is enough for `top'. */
352 prctl(PR_SET_NAME, name);
353#endif
354}
df751fa8
AL		 355
356/***************/
357/* ballooning */
358
359static QEMUBalloonEvent *qemu_balloon_event;
360void *qemu_balloon_event_opaque;
361
362void qemu_add_balloon_handler(QEMUBalloonEvent *func, void *opaque)
363{
364 qemu_balloon_event = func;
365 qemu_balloon_event_opaque = opaque;
366}
367
625a5bef 368int qemu_balloon(ram_addr_t target, MonitorCompletion cb, void *opaque)
df751fa8 369{
625a5bef
AL		 370 if (qemu_balloon_event) {
371 qemu_balloon_event(qemu_balloon_event_opaque, target, cb, opaque);
372 return 1;
373 } else {
374 return 0;
375 }
df751fa8
AL		 376}
377
625a5bef 378int qemu_balloon_status(MonitorCompletion cb, void *opaque)
df751fa8 379{
625a5bef
AL		 380 if (qemu_balloon_event) {
381 qemu_balloon_event(qemu_balloon_event_opaque, 0, cb, opaque);
382 return 1;
383 } else {
384 return 0;
385 }
df751fa8 386}
0824d6fc 387
455204eb 388
8f0056b7
PB		 389/***********************************************************/
390/* real time host monotonic timer */
09b26c5e 391
1dce7c3c
FB		 392/* compute with 96 bit intermediate result: (a*b)/c */
393uint64_t muldiv64(uint64_t a, uint32_t b, uint32_t c)
0824d6fc 394{
1dce7c3c
FB		 395 union {
396 uint64_t ll;
397 struct {
e2542fe2 398#ifdef HOST_WORDS_BIGENDIAN
1dce7c3c
FB		 399 uint32_t high, low;
400#else
401 uint32_t low, high;
3b46e624 402#endif
1dce7c3c
FB		 403 } l;
404 } u, res;
405 uint64_t rl, rh;
0824d6fc 406
1dce7c3c
FB		 407 u.ll = a;
408 rl = (uint64_t)u.l.low * (uint64_t)b;
409 rh = (uint64_t)u.l.high * (uint64_t)b;
410 rh += (rl >> 32);
411 res.l.high = rh / c;
412 res.l.low = (((rh % c) << 32) + (rl & 0xffffffff)) / c;
413 return res.ll;
34865134
FB		 414}
415
21d5d12b
JK		 416static int64_t get_clock_realtime(void)
417{
418 struct timeval tv;
419
420 gettimeofday(&tv, NULL);
421 return tv.tv_sec * 1000000000LL + (tv.tv_usec * 1000);
422}
423
1dce7c3c 424#ifdef WIN32
0824d6fc 425
1dce7c3c 426static int64_t clock_freq;
1115dde7 427
1dce7c3c 428static void init_get_clock(void)
1115dde7 429{
a8e5ac33
FB		 430 LARGE_INTEGER freq;
431 int ret;
1dce7c3c
FB		 432 ret = QueryPerformanceFrequency(&freq);
433 if (ret == 0) {
434 fprintf(stderr, "Could not calibrate ticks\n");
435 exit(1);
436 }
437 clock_freq = freq.QuadPart;
1115dde7
FB		 438}
439
1dce7c3c 440static int64_t get_clock(void)
b8076a74 441{
1dce7c3c
FB		 442 LARGE_INTEGER ti;
443 QueryPerformanceCounter(&ti);
274dfed8 444 return muldiv64(ti.QuadPart, get_ticks_per_sec(), clock_freq);
b8076a74
FB		 445}
446
1dce7c3c 447#else
90cb9493 448
1dce7c3c
FB		 449static int use_rt_clock;
450
451static void init_get_clock(void)
90cb9493 452{
1dce7c3c 453 use_rt_clock = 0;
c5e97233 454#if defined(__linux__) || (defined(__FreeBSD__) && __FreeBSD_version >= 500000) \
a167ba50 455 || defined(__DragonFly__) || defined(__FreeBSD_kernel__)
1dce7c3c
FB		 456 {
457 struct timespec ts;
458 if (clock_gettime(CLOCK_MONOTONIC, &ts) == 0) {
459 use_rt_clock = 1;
460 }
461 }
462#endif
90cb9493
FB		 463}
464
1dce7c3c 465static int64_t get_clock(void)
fdbb4691 466{
c5e97233 467#if defined(__linux__) || (defined(__FreeBSD__) && __FreeBSD_version >= 500000) \
a167ba50 468 || defined(__DragonFly__) || defined(__FreeBSD_kernel__)
1dce7c3c
FB		 469 if (use_rt_clock) {
470 struct timespec ts;
471 clock_gettime(CLOCK_MONOTONIC, &ts);
472 return ts.tv_sec * 1000000000LL + ts.tv_nsec;
5fafdf24 473 } else
fdbb4691 474#endif
1dce7c3c
FB		 475 {
476 /* XXX: using gettimeofday leads to problems if the date
477 changes, so it should be avoided. */
21d5d12b 478 return get_clock_realtime();
1dce7c3c 479 }
fdbb4691 480}
34865134
FB		 481#endif
482
2e70f6ef
PB		 483/* Return the virtual CPU time, based on the instruction counter. */
484static int64_t cpu_get_icount(void)
485{
486 int64_t icount;
487 CPUState *env = cpu_single_env;;
488 icount = qemu_icount;
489 if (env) {
490 if (!can_do_io(env))
491 fprintf(stderr, "Bad clock read\n");
492 icount -= (env->icount_decr.u16.low + env->icount_extra);
493 }
494 return qemu_icount_bias + (icount << icount_time_shift);
495}
496
1dce7c3c
FB		 497/***********************************************************/
498/* guest cycle counter */
499
6f68e33e
JQ		 500typedef struct TimersState {
501 int64_t cpu_ticks_prev;
502 int64_t cpu_ticks_offset;
503 int64_t cpu_clock_offset;
504 int32_t cpu_ticks_enabled;
274dfed8 505 int64_t dummy;
6f68e33e
JQ		 506} TimersState;
507
508TimersState timers_state;
34865134 509
1dce7c3c
FB		 510/* return the host CPU cycle counter and handle stop/restart */
511int64_t cpu_get_ticks(void)
34865134 512{
2e70f6ef
PB		 513 if (use_icount) {
514 return cpu_get_icount();
515 }
6f68e33e
JQ		 516 if (!timers_state.cpu_ticks_enabled) {
517 return timers_state.cpu_ticks_offset;
8a7ddc38 518 } else {
eade0f19
FB		 519 int64_t ticks;
520 ticks = cpu_get_real_ticks();
6f68e33e 521 if (timers_state.cpu_ticks_prev > ticks) {
eade0f19
FB		 522 /* Note: non increasing ticks may happen if the host uses
523 software suspend */
6f68e33e 524 timers_state.cpu_ticks_offset += timers_state.cpu_ticks_prev - ticks;
eade0f19 525 }
6f68e33e
JQ		 526 timers_state.cpu_ticks_prev = ticks;
527 return ticks + timers_state.cpu_ticks_offset;
8a7ddc38 528 }
34865134
FB		 529}
530
1dce7c3c
FB		 531/* return the host CPU monotonic timer and handle stop/restart */
532static int64_t cpu_get_clock(void)
533{
534 int64_t ti;
6f68e33e
JQ		 535 if (!timers_state.cpu_ticks_enabled) {
536 return timers_state.cpu_clock_offset;
1dce7c3c
FB		 537 } else {
538 ti = get_clock();
6f68e33e 539 return ti + timers_state.cpu_clock_offset;
1dce7c3c
FB		 540 }
541}
542
34865134
FB		 543/* enable cpu_get_ticks() */
544void cpu_enable_ticks(void)
545{
6f68e33e
JQ		 546 if (!timers_state.cpu_ticks_enabled) {
547 timers_state.cpu_ticks_offset -= cpu_get_real_ticks();
548 timers_state.cpu_clock_offset -= get_clock();
549 timers_state.cpu_ticks_enabled = 1;
8a7ddc38 550 }
34865134
FB		 551}
552
553/* disable cpu_get_ticks() : the clock is stopped. You must not call
554 cpu_get_ticks() after that. */
555void cpu_disable_ticks(void)
556{
6f68e33e
JQ		 557 if (timers_state.cpu_ticks_enabled) {
558 timers_state.cpu_ticks_offset = cpu_get_ticks();
559 timers_state.cpu_clock_offset = cpu_get_clock();
560 timers_state.cpu_ticks_enabled = 0;
8a7ddc38 561 }
34865134
FB		 562}
563
1dce7c3c
FB		 564/***********************************************************/
565/* timers */
5fafdf24 566
0fdddf80
JK		 567#define QEMU_CLOCK_REALTIME 0
568#define QEMU_CLOCK_VIRTUAL 1
21d5d12b 569#define QEMU_CLOCK_HOST 2
8a7ddc38
FB		 570
571struct QEMUClock {
572 int type;
573 /* XXX: add frequency */
574};
575
576struct QEMUTimer {
577 QEMUClock *clock;
578 int64_t expire_time;
579 QEMUTimerCB *cb;
580 void *opaque;
581 struct QEMUTimer *next;
582};
583
c8994013
TS		 584struct qemu_alarm_timer {
585 char const *name;
efe75411 586 unsigned int flags;
c8994013
TS		 587
588 int (*start)(struct qemu_alarm_timer *t);
589 void (*stop)(struct qemu_alarm_timer *t);
efe75411 590 void (*rearm)(struct qemu_alarm_timer *t);
c8994013
TS		 591 void *priv;
592};
593
efe75411 594#define ALARM_FLAG_DYNTICKS 0x1
d5d08334 595#define ALARM_FLAG_EXPIRED 0x2
efe75411
TS		 596
597static inline int alarm_has_dynticks(struct qemu_alarm_timer *t)
598{
e332340a 599 return t && (t->flags & ALARM_FLAG_DYNTICKS);
efe75411
TS		 600}
601
602static void qemu_rearm_alarm_timer(struct qemu_alarm_timer *t)
603{
604 if (!alarm_has_dynticks(t))
605 return;
606
607 t->rearm(t);
608}
609
610/* TODO: MIN_TIMER_REARM_US should be optimized */
611#define MIN_TIMER_REARM_US 250
612
c8994013 613static struct qemu_alarm_timer *alarm_timer;
8a7ddc38 614
40c3bac3 615#ifdef _WIN32
c8994013
TS		 616
617struct qemu_alarm_win32 {
618 MMRESULT timerId;
c8994013 619 unsigned int period;
ef28c4b0 620} alarm_win32_data = {0, -1};
c8994013
TS		 621
622static int win32_start_timer(struct qemu_alarm_timer *t);
623static void win32_stop_timer(struct qemu_alarm_timer *t);
efe75411 624static void win32_rearm_timer(struct qemu_alarm_timer *t);
c8994013 625
40c3bac3 626#else
c8994013
TS		 627
628static int unix_start_timer(struct qemu_alarm_timer *t);
629static void unix_stop_timer(struct qemu_alarm_timer *t);
630
231c6586
TS		 631#ifdef __linux__
632
efe75411
TS		 633static int dynticks_start_timer(struct qemu_alarm_timer *t);
634static void dynticks_stop_timer(struct qemu_alarm_timer *t);
635static void dynticks_rearm_timer(struct qemu_alarm_timer *t);
636
c40ec5a9
TS		 637static int hpet_start_timer(struct qemu_alarm_timer *t);
638static void hpet_stop_timer(struct qemu_alarm_timer *t);
639
c8994013
TS		 640static int rtc_start_timer(struct qemu_alarm_timer *t);
641static void rtc_stop_timer(struct qemu_alarm_timer *t);
642
efe75411 643#endif /* __linux__ */
8a7ddc38 644
c8994013
TS		 645#endif /* _WIN32 */
646
2e70f6ef 647/* Correlation between real and virtual time is always going to be
bf20dc07 648 fairly approximate, so ignore small variation.
2e70f6ef
PB		 649 When the guest is idle real and virtual time will be aligned in
650 the IO wait loop. */
274dfed8 651#define ICOUNT_WOBBLE (get_ticks_per_sec() / 10)
2e70f6ef
PB		 652
653static void icount_adjust(void)
654{
655 int64_t cur_time;
656 int64_t cur_icount;
657 int64_t delta;
658 static int64_t last_delta;
659 /* If the VM is not running, then do nothing. */
660 if (!vm_running)
661 return;
662
663 cur_time = cpu_get_clock();
664 cur_icount = qemu_get_clock(vm_clock);
665 delta = cur_icount - cur_time;
666 /* FIXME: This is a very crude algorithm, somewhat prone to oscillation. */
667 if (delta > 0
668 && last_delta + ICOUNT_WOBBLE < delta * 2
669 && icount_time_shift > 0) {
670 /* The guest is getting too far ahead. Slow time down. */
671 icount_time_shift--;
672 }
673 if (delta < 0
674 && last_delta - ICOUNT_WOBBLE > delta * 2
675 && icount_time_shift < MAX_ICOUNT_SHIFT) {
676 /* The guest is getting too far behind. Speed time up. */
677 icount_time_shift++;
678 }
679 last_delta = delta;
680 qemu_icount_bias = cur_icount - (qemu_icount << icount_time_shift);
681}
682
683static void icount_adjust_rt(void * opaque)
684{
685 qemu_mod_timer(icount_rt_timer,
686 qemu_get_clock(rt_clock) + 1000);
687 icount_adjust();
688}
689
690static void icount_adjust_vm(void * opaque)
691{
692 qemu_mod_timer(icount_vm_timer,
274dfed8 693 qemu_get_clock(vm_clock) + get_ticks_per_sec() / 10);
2e70f6ef
PB		 694 icount_adjust();
695}
696
697static void init_icount_adjust(void)
698{
699 /* Have both realtime and virtual time triggers for speed adjustment.
700 The realtime trigger catches emulated time passing too slowly,
701 the virtual time trigger catches emulated time passing too fast.
702 Realtime triggers occur even when idle, so use them less frequently
703 than VM triggers. */
704 icount_rt_timer = qemu_new_timer(rt_clock, icount_adjust_rt, NULL);
705 qemu_mod_timer(icount_rt_timer,
706 qemu_get_clock(rt_clock) + 1000);
707 icount_vm_timer = qemu_new_timer(vm_clock, icount_adjust_vm, NULL);
708 qemu_mod_timer(icount_vm_timer,
274dfed8 709 qemu_get_clock(vm_clock) + get_ticks_per_sec() / 10);
2e70f6ef
PB		 710}
711
c8994013 712static struct qemu_alarm_timer alarm_timers[] = {
efe75411 713#ifndef _WIN32
231c6586 714#ifdef __linux__
efe75411
TS		 715 {"dynticks", ALARM_FLAG_DYNTICKS, dynticks_start_timer,
716 dynticks_stop_timer, dynticks_rearm_timer, NULL},
c40ec5a9 717 /* HPET - if available - is preferred */
efe75411 718 {"hpet", 0, hpet_start_timer, hpet_stop_timer, NULL, NULL},
c40ec5a9 719 /* ...otherwise try RTC */
efe75411 720 {"rtc", 0, rtc_start_timer, rtc_stop_timer, NULL, NULL},
c8994013 721#endif
efe75411 722 {"unix", 0, unix_start_timer, unix_stop_timer, NULL, NULL},
c8994013 723#else
efe75411
TS		 724 {"dynticks", ALARM_FLAG_DYNTICKS, win32_start_timer,
725 win32_stop_timer, win32_rearm_timer, &alarm_win32_data},
726 {"win32", 0, win32_start_timer,
727 win32_stop_timer, NULL, &alarm_win32_data},
c8994013
TS		 728#endif
729 {NULL, }
730};
731
3f47aa8c 732static void show_available_alarms(void)
f3dcfada
TS		 733{
734 int i;
735
736 printf("Available alarm timers, in order of precedence:\n");
737 for (i = 0; alarm_timers[i].name; i++)
738 printf("%s\n", alarm_timers[i].name);
739}
740
741static void configure_alarms(char const *opt)
742{
743 int i;
744 int cur = 0;
b1503cda 745 int count = ARRAY_SIZE(alarm_timers) - 1;
f3dcfada
TS		 746 char *arg;
747 char *name;
2e70f6ef 748 struct qemu_alarm_timer tmp;
f3dcfada 749
3adda04c 750 if (!strcmp(opt, "?")) {
f3dcfada
TS		 751 show_available_alarms();
752 exit(0);
753 }
754
73ffc805 755 arg = qemu_strdup(opt);
f3dcfada
TS		 756
757 /* Reorder the array */
758 name = strtok(arg, ",");
759 while (name) {
e2b577e5 760 for (i = 0; i < count && alarm_timers[i].name; i++) {
f3dcfada
TS		 761 if (!strcmp(alarm_timers[i].name, name))
762 break;
763 }
764
765 if (i == count) {
766 fprintf(stderr, "Unknown clock %s\n", name);
767 goto next;
768 }
769
770 if (i < cur)
771 /* Ignore */
772 goto next;
773
774 /* Swap */
775 tmp = alarm_timers[i];
776 alarm_timers[i] = alarm_timers[cur];
777 alarm_timers[cur] = tmp;
778
779 cur++;
780next:
781 name = strtok(NULL, ",");
782 }
783
73ffc805 784 qemu_free(arg);
f3dcfada
TS		 785
786 if (cur) {
2e70f6ef 787 /* Disable remaining timers */
f3dcfada
TS		 788 for (i = cur; i < count; i++)
789 alarm_timers[i].name = NULL;
3adda04c
AJ		 790 } else {
791 show_available_alarms();
792 exit(1);
f3dcfada 793 }
f3dcfada
TS		 794}
795
21d5d12b
JK		 796#define QEMU_NUM_CLOCKS 3
797
c8994013
TS		 798QEMUClock *rt_clock;
799QEMUClock *vm_clock;
21d5d12b 800QEMUClock *host_clock;
c8994013 801
21d5d12b 802static QEMUTimer *active_timers[QEMU_NUM_CLOCKS];
c8994013 803
9596ebb7 804static QEMUClock *qemu_new_clock(int type)
8a7ddc38
FB		 805{
806 QEMUClock *clock;
807 clock = qemu_mallocz(sizeof(QEMUClock));
8a7ddc38
FB		 808 clock->type = type;
809 return clock;
810}
811
812QEMUTimer *qemu_new_timer(QEMUClock *clock, QEMUTimerCB *cb, void *opaque)
813{
814 QEMUTimer *ts;
815
816 ts = qemu_mallocz(sizeof(QEMUTimer));
817 ts->clock = clock;
818 ts->cb = cb;
819 ts->opaque = opaque;
820 return ts;
821}
822
823void qemu_free_timer(QEMUTimer *ts)
824{
825 qemu_free(ts);
826}
827
828/* stop a timer, but do not dealloc it */
829void qemu_del_timer(QEMUTimer *ts)
830{
831 QEMUTimer **pt, *t;
832
833 /* NOTE: this code must be signal safe because
834 qemu_timer_expired() can be called from a signal. */
835 pt = &active_timers[ts->clock->type];
836 for(;;) {
837 t = *pt;
838 if (!t)
839 break;
840 if (t == ts) {
841 *pt = t->next;
842 break;
843 }
844 pt = &t->next;
845 }
846}
847
848/* modify the current timer so that it will be fired when current_time
849 >= expire_time. The corresponding callback will be called. */
850void qemu_mod_timer(QEMUTimer *ts, int64_t expire_time)
851{
852 QEMUTimer **pt, *t;
853
854 qemu_del_timer(ts);
855
856 /* add the timer in the sorted list */
857 /* NOTE: this code must be signal safe because
858 qemu_timer_expired() can be called from a signal. */
859 pt = &active_timers[ts->clock->type];
860 for(;;) {
861 t = *pt;
862 if (!t)
863 break;
5fafdf24 864 if (t->expire_time > expire_time)
8a7ddc38
FB		 865 break;
866 pt = &t->next;
867 }
868 ts->expire_time = expire_time;
869 ts->next = *pt;
870 *pt = ts;
d5d08334
AZ		 871
872 /* Rearm if necessary */
2e70f6ef
PB		 873 if (pt == &active_timers[ts->clock->type]) {
874 if ((alarm_timer->flags & ALARM_FLAG_EXPIRED) == 0) {
875 qemu_rearm_alarm_timer(alarm_timer);
876 }
877 /* Interrupt execution to force deadline recalculation. */
d9f75a4e
AL		 878 if (use_icount)
879 qemu_notify_event();
2e70f6ef 880 }
8a7ddc38
FB		 881}
882
883int qemu_timer_pending(QEMUTimer *ts)
884{
885 QEMUTimer *t;
886 for(t = active_timers[ts->clock->type]; t != NULL; t = t->next) {
887 if (t == ts)
888 return 1;
889 }
890 return 0;
891}
892
2430ffe4 893int qemu_timer_expired(QEMUTimer *timer_head, int64_t current_time)
8a7ddc38
FB		 894{
895 if (!timer_head)
896 return 0;
897 return (timer_head->expire_time <= current_time);
898}
899
900static void qemu_run_timers(QEMUTimer **ptimer_head, int64_t current_time)
901{
902 QEMUTimer *ts;
3b46e624 903
8a7ddc38
FB		 904 for(;;) {
905 ts = *ptimer_head;
e95c8d51 906 if (!ts || ts->expire_time > current_time)
8a7ddc38
FB		 907 break;
908 /* remove timer from the list before calling the callback */
909 *ptimer_head = ts->next;
910 ts->next = NULL;
3b46e624 911
8a7ddc38
FB		 912 /* run the callback (the timer list can be modified) */
913 ts->cb(ts->opaque);
914 }
915}
916
917int64_t qemu_get_clock(QEMUClock *clock)
918{
919 switch(clock->type) {
0fdddf80 920 case QEMU_CLOCK_REALTIME:
1dce7c3c 921 return get_clock() / 1000000;
8a7ddc38 922 default:
0fdddf80 923 case QEMU_CLOCK_VIRTUAL:
2e70f6ef
PB		 924 if (use_icount) {
925 return cpu_get_icount();
926 } else {
927 return cpu_get_clock();
928 }
21d5d12b
JK		 929 case QEMU_CLOCK_HOST:
930 return get_clock_realtime();
8a7ddc38
FB		 931 }
932}
933
0fdddf80 934static void init_clocks(void)
1dce7c3c
FB		 935{
936 init_get_clock();
0fdddf80
JK		 937 rt_clock = qemu_new_clock(QEMU_CLOCK_REALTIME);
938 vm_clock = qemu_new_clock(QEMU_CLOCK_VIRTUAL);
21d5d12b 939 host_clock = qemu_new_clock(QEMU_CLOCK_HOST);
6875204c
JK		 940
941 rtc_clock = host_clock;
1dce7c3c
FB		 942}
943
8a7ddc38
FB		 944/* save a timer */
945void qemu_put_timer(QEMUFile *f, QEMUTimer *ts)
946{
947 uint64_t expire_time;
948
949 if (qemu_timer_pending(ts)) {
950 expire_time = ts->expire_time;
951 } else {
952 expire_time = -1;
953 }
954 qemu_put_be64(f, expire_time);
955}
956
957void qemu_get_timer(QEMUFile *f, QEMUTimer *ts)
958{
959 uint64_t expire_time;
960
961 expire_time = qemu_get_be64(f);
962 if (expire_time != -1) {
963 qemu_mod_timer(ts, expire_time);
964 } else {
965 qemu_del_timer(ts);
966 }
967}
968
2faf58cd
JQ		 969static const VMStateDescription vmstate_timers = {
970 .name = "timer",
971 .version_id = 2,
972 .minimum_version_id = 1,
973 .minimum_version_id_old = 1,
974 .fields = (VMStateField []) {
975 VMSTATE_INT64(cpu_ticks_offset, TimersState),
274dfed8 976 VMSTATE_INT64(dummy, TimersState),
2faf58cd
JQ		 977 VMSTATE_INT64_V(cpu_clock_offset, TimersState, 2),
978 VMSTATE_END_OF_LIST()
c88676f8 979 }
2faf58cd 980};
8a7ddc38 981
50317c7f
AL		 982static void qemu_event_increment(void);
983
67b915a5 984#ifdef _WIN32
b9e82a59
BS		 985static void CALLBACK host_alarm_handler(UINT uTimerID, UINT uMsg,
986 DWORD_PTR dwUser, DWORD_PTR dw1,
987 DWORD_PTR dw2)
67b915a5 988#else
8a7ddc38 989static void host_alarm_handler(int host_signum)
67b915a5 990#endif
8a7ddc38 991{
02ba45c5
FB		 992#if 0
993#define DISP_FREQ 1000
994 {
995 static int64_t delta_min = INT64_MAX;
996 static int64_t delta_max, delta_cum, last_clock, delta, ti;
997 static int count;
998 ti = qemu_get_clock(vm_clock);
999 if (last_clock != 0) {
1000 delta = ti - last_clock;
1001 if (delta < delta_min)
1002 delta_min = delta;
1003 if (delta > delta_max)
1004 delta_max = delta;
1005 delta_cum += delta;
1006 if (++count == DISP_FREQ) {
26a76461 1007 printf("timer: min=%" PRId64 " us max=%" PRId64 " us avg=%" PRId64 " us avg_freq=%0.3f Hz\n",
6ee093c9
JQ		 1008 muldiv64(delta_min, 1000000, get_ticks_per_sec()),
1009 muldiv64(delta_max, 1000000, get_ticks_per_sec()),
1010 muldiv64(delta_cum, 1000000 / DISP_FREQ, get_ticks_per_sec()),
1011 (double)get_ticks_per_sec() / ((double)delta_cum / DISP_FREQ));
02ba45c5
FB		 1012 count = 0;
1013 delta_min = INT64_MAX;
1014 delta_max = 0;
1015 delta_cum = 0;
1016 }
1017 }
1018 last_clock = ti;
1019 }
1020#endif
efe75411 1021 if (alarm_has_dynticks(alarm_timer) ||
2e70f6ef 1022 (!use_icount &&
0fdddf80 1023 qemu_timer_expired(active_timers[QEMU_CLOCK_VIRTUAL],
2e70f6ef 1024 qemu_get_clock(vm_clock))) ||
0fdddf80 1025 qemu_timer_expired(active_timers[QEMU_CLOCK_REALTIME],
21d5d12b
JK		 1026 qemu_get_clock(rt_clock)) ||
1027 qemu_timer_expired(active_timers[QEMU_CLOCK_HOST],
1028 qemu_get_clock(host_clock))) {
50317c7f 1029 qemu_event_increment();
e332340a 1030 if (alarm_timer) alarm_timer->flags |= ALARM_FLAG_EXPIRED;
d5d08334 1031
d6dc3d42
AL		 1032#ifndef CONFIG_IOTHREAD
1033 if (next_cpu) {
4f8eb8da 1034 /* stop the currently executing cpu because a timer occured */
d6dc3d42 1035 cpu_exit(next_cpu);
4f8eb8da 1036 }
d6dc3d42 1037#endif
43b96858 1038 timer_alarm_pending = 1;
d9f75a4e 1039 qemu_notify_event();
8a7ddc38
FB		 1040 }
1041}
1042
2e70f6ef 1043static int64_t qemu_next_deadline(void)
efe75411 1044{
21d5d12b
JK		 1045 /* To avoid problems with overflow limit this to 2^32. */
1046 int64_t delta = INT32_MAX;
efe75411 1047
0fdddf80
JK		 1048 if (active_timers[QEMU_CLOCK_VIRTUAL]) {
1049 delta = active_timers[QEMU_CLOCK_VIRTUAL]->expire_time -
2e70f6ef 1050 qemu_get_clock(vm_clock);
21d5d12b
JK		 1051 }
1052 if (active_timers[QEMU_CLOCK_HOST]) {
1053 int64_t hdelta = active_timers[QEMU_CLOCK_HOST]->expire_time -
1054 qemu_get_clock(host_clock);
1055 if (hdelta < delta)
1056 delta = hdelta;
efe75411
TS		 1057 }
1058
2e70f6ef
PB		 1059 if (delta < 0)
1060 delta = 0;
efe75411 1061
2e70f6ef
PB		 1062 return delta;
1063}
1064
f64382ba 1065#if defined(__linux__)
2e70f6ef
PB		 1066static uint64_t qemu_next_deadline_dyntick(void)
1067{
1068 int64_t delta;
1069 int64_t rtdelta;
1070
1071 if (use_icount)
1072 delta = INT32_MAX;
1073 else
1074 delta = (qemu_next_deadline() + 999) / 1000;
1075
0fdddf80
JK		 1076 if (active_timers[QEMU_CLOCK_REALTIME]) {
1077 rtdelta = (active_timers[QEMU_CLOCK_REALTIME]->expire_time -
2e70f6ef
PB		 1078 qemu_get_clock(rt_clock))*1000;
1079 if (rtdelta < delta)
1080 delta = rtdelta;
1081 }
1082
1083 if (delta < MIN_TIMER_REARM_US)
1084 delta = MIN_TIMER_REARM_US;
1085
1086 return delta;
efe75411 1087}
8632fb9a 1088#endif
efe75411 1089
fd872598
FB		 1090#ifndef _WIN32
1091
7183b4b4
AL		 1092/* Sets a specific flag */
1093static int fcntl_setfl(int fd, int flag)
1094{
1095 int flags;
1096
1097 flags = fcntl(fd, F_GETFL);
1098 if (flags == -1)
1099 return -errno;
1100
1101 if (fcntl(fd, F_SETFL, flags | flag) == -1)
1102 return -errno;
1103
1104 return 0;
1105}
1106
829309c7
FB		 1107#if defined(__linux__)
1108
fd872598
FB		 1109#define RTC_FREQ 1024
1110
de9a95f0 1111static void enable_sigio_timer(int fd)
c8994013
TS		 1112{
1113 struct sigaction act;
1114
1115 /* timer signal */
1116 sigfillset(&act.sa_mask);
1117 act.sa_flags = 0;
c8994013
TS		 1118 act.sa_handler = host_alarm_handler;
1119
1120 sigaction(SIGIO, &act, NULL);
7183b4b4 1121 fcntl_setfl(fd, O_ASYNC);
c8994013
TS		 1122 fcntl(fd, F_SETOWN, getpid());
1123}
829309c7 1124
c40ec5a9
TS		 1125static int hpet_start_timer(struct qemu_alarm_timer *t)
1126{
1127 struct hpet_info info;
1128 int r, fd;
1129
40ff6d7e 1130 fd = qemu_open("/dev/hpet", O_RDONLY);
c40ec5a9
TS		 1131 if (fd < 0)
1132 return -1;
1133
1134 /* Set frequency */
1135 r = ioctl(fd, HPET_IRQFREQ, RTC_FREQ);
1136 if (r < 0) {
1137 fprintf(stderr, "Could not configure '/dev/hpet' to have a 1024Hz timer. This is not a fatal\n"
1138 "error, but for better emulation accuracy type:\n"
1139 "'echo 1024 > /proc/sys/dev/hpet/max-user-freq' as root.\n");
1140 goto fail;
1141 }
1142
1143 /* Check capabilities */
1144 r = ioctl(fd, HPET_INFO, &info);
1145 if (r < 0)
1146 goto fail;
1147
1148 /* Enable periodic mode */
1149 r = ioctl(fd, HPET_EPI, 0);
1150 if (info.hi_flags && (r < 0))
1151 goto fail;
1152
1153 /* Enable interrupt */
1154 r = ioctl(fd, HPET_IE_ON, 0);
1155 if (r < 0)
1156 goto fail;
1157
1158 enable_sigio_timer(fd);
fcdc2129 1159 t->priv = (void *)(long)fd;
c40ec5a9
TS		 1160
1161 return 0;
1162fail:
1163 close(fd);
1164 return -1;
1165}
1166
1167static void hpet_stop_timer(struct qemu_alarm_timer *t)
1168{
fcdc2129 1169 int fd = (long)t->priv;
c40ec5a9
TS		 1170
1171 close(fd);
1172}
1173
c8994013 1174static int rtc_start_timer(struct qemu_alarm_timer *t)
fd872598 1175{
c8994013 1176 int rtc_fd;
b5a23ad4 1177 unsigned long current_rtc_freq = 0;
c8994013 1178
40ff6d7e 1179 TFR(rtc_fd = qemu_open("/dev/rtc", O_RDONLY));
fd872598
FB		 1180 if (rtc_fd < 0)
1181 return -1;
b5a23ad4
AZ		 1182 ioctl(rtc_fd, RTC_IRQP_READ, &current_rtc_freq);
1183 if (current_rtc_freq != RTC_FREQ &&
1184 ioctl(rtc_fd, RTC_IRQP_SET, RTC_FREQ) < 0) {
fd872598
FB		 1185 fprintf(stderr, "Could not configure '/dev/rtc' to have a 1024 Hz timer. This is not a fatal\n"
1186 "error, but for better emulation accuracy either use a 2.6 host Linux kernel or\n"
1187 "type 'echo 1024 > /proc/sys/dev/rtc/max-user-freq' as root.\n");
1188 goto fail;
1189 }
1190 if (ioctl(rtc_fd, RTC_PIE_ON, 0) < 0) {
1191 fail:
1192 close(rtc_fd);
1193 return -1;
1194 }
c8994013
TS		 1195
1196 enable_sigio_timer(rtc_fd);
1197
fcdc2129 1198 t->priv = (void *)(long)rtc_fd;
c8994013 1199
fd872598
FB		 1200 return 0;
1201}
1202
c8994013 1203static void rtc_stop_timer(struct qemu_alarm_timer *t)
829309c7 1204{
fcdc2129 1205 int rtc_fd = (long)t->priv;
c8994013
TS		 1206
1207 close(rtc_fd);
829309c7
FB		 1208}
1209
efe75411
TS		 1210static int dynticks_start_timer(struct qemu_alarm_timer *t)
1211{
1212 struct sigevent ev;
1213 timer_t host_timer;
1214 struct sigaction act;
1215
1216 sigfillset(&act.sa_mask);
1217 act.sa_flags = 0;
efe75411
TS		 1218 act.sa_handler = host_alarm_handler;
1219
1220 sigaction(SIGALRM, &act, NULL);
1221
9ed415b2
JCD		 1222 /*
1223 * Initialize ev struct to 0 to avoid valgrind complaining
1224 * about uninitialized data in timer_create call
1225 */
1226 memset(&ev, 0, sizeof(ev));
efe75411
TS		 1227 ev.sigev_value.sival_int = 0;
1228 ev.sigev_notify = SIGEV_SIGNAL;
1229 ev.sigev_signo = SIGALRM;
1230
1231 if (timer_create(CLOCK_REALTIME, &ev, &host_timer)) {
1232 perror("timer_create");
1233
1234 /* disable dynticks */
1235 fprintf(stderr, "Dynamic Ticks disabled\n");
1236
1237 return -1;
1238 }
1239
0399bfe0 1240 t->priv = (void *)(long)host_timer;
efe75411
TS		 1241
1242 return 0;
1243}
1244
1245static void dynticks_stop_timer(struct qemu_alarm_timer *t)
1246{
0399bfe0 1247 timer_t host_timer = (timer_t)(long)t->priv;
efe75411
TS		 1248
1249 timer_delete(host_timer);
1250}
1251
1252static void dynticks_rearm_timer(struct qemu_alarm_timer *t)
1253{
0399bfe0 1254 timer_t host_timer = (timer_t)(long)t->priv;
efe75411
TS		 1255 struct itimerspec timeout;
1256 int64_t nearest_delta_us = INT64_MAX;
1257 int64_t current_us;
1258
0fdddf80 1259 if (!active_timers[QEMU_CLOCK_REALTIME] &&
21d5d12b
JK		 1260 !active_timers[QEMU_CLOCK_VIRTUAL] &&
1261 !active_timers[QEMU_CLOCK_HOST])
d5d08334 1262 return;
efe75411 1263
2e70f6ef 1264 nearest_delta_us = qemu_next_deadline_dyntick();
efe75411
TS		 1265
1266 /* check whether a timer is already running */
1267 if (timer_gettime(host_timer, &timeout)) {
1268 perror("gettime");
1269 fprintf(stderr, "Internal timer error: aborting\n");
1270 exit(1);
1271 }
1272 current_us = timeout.it_value.tv_sec * 1000000 + timeout.it_value.tv_nsec/1000;
1273 if (current_us && current_us <= nearest_delta_us)
1274 return;
1275
1276 timeout.it_interval.tv_sec = 0;
1277 timeout.it_interval.tv_nsec = 0; /* 0 for one-shot timer */
1278 timeout.it_value.tv_sec = nearest_delta_us / 1000000;
1279 timeout.it_value.tv_nsec = (nearest_delta_us % 1000000) * 1000;
1280 if (timer_settime(host_timer, 0 /* RELATIVE */, &timeout, NULL)) {
1281 perror("settime");
1282 fprintf(stderr, "Internal timer error: aborting\n");
1283 exit(1);
1284 }
1285}
1286
70744b3a 1287#endif /* defined(__linux__) */
231c6586 1288
c8994013
TS		 1289static int unix_start_timer(struct qemu_alarm_timer *t)
1290{
1291 struct sigaction act;
1292 struct itimerval itv;
1293 int err;
1294
1295 /* timer signal */
1296 sigfillset(&act.sa_mask);
1297 act.sa_flags = 0;
c8994013
TS		 1298 act.sa_handler = host_alarm_handler;
1299
1300 sigaction(SIGALRM, &act, NULL);
1301
1302 itv.it_interval.tv_sec = 0;
1303 /* for i386 kernel 2.6 to get 1 ms */
1304 itv.it_interval.tv_usec = 999;
1305 itv.it_value.tv_sec = 0;
1306 itv.it_value.tv_usec = 10 * 1000;
1307
1308 err = setitimer(ITIMER_REAL, &itv, NULL);
1309 if (err)
1310 return -1;
1311
1312 return 0;
1313}
1314
1315static void unix_stop_timer(struct qemu_alarm_timer *t)
1316{
1317 struct itimerval itv;
1318
1319 memset(&itv, 0, sizeof(itv));
1320 setitimer(ITIMER_REAL, &itv, NULL);
1321}
1322
829309c7 1323#endif /* !defined(_WIN32) */
fd872598 1324
f49e58dc 1325
c8994013
TS		 1326#ifdef _WIN32
1327
1328static int win32_start_timer(struct qemu_alarm_timer *t)
1329{
1330 TIMECAPS tc;
1331 struct qemu_alarm_win32 *data = t->priv;
efe75411 1332 UINT flags;
c8994013 1333
c8994013
TS		 1334 memset(&tc, 0, sizeof(tc));
1335 timeGetDevCaps(&tc, sizeof(tc));
1336
1337 if (data->period < tc.wPeriodMin)
1338 data->period = tc.wPeriodMin;
1339
1340 timeBeginPeriod(data->period);
1341
efe75411
TS		 1342 flags = TIME_CALLBACK_FUNCTION;
1343 if (alarm_has_dynticks(t))
1344 flags |= TIME_ONESHOT;
1345 else
1346 flags |= TIME_PERIODIC;
1347
c8994013
TS		 1348 data->timerId = timeSetEvent(1, // interval (ms)
1349 data->period, // resolution
1350 host_alarm_handler, // function
1351 (DWORD)t, // parameter
efe75411 1352 flags);
c8994013
TS		 1353
1354 if (!data->timerId) {
20889d4e 1355 fprintf(stderr, "Failed to initialize win32 alarm timer: %ld\n",
705e83f6 1356 GetLastError());
c8994013 1357 timeEndPeriod(data->period);
c8994013
TS		 1358 return -1;
1359 }
1360
c8994013
TS		 1361 return 0;
1362}
1363
1364static void win32_stop_timer(struct qemu_alarm_timer *t)
1365{
1366 struct qemu_alarm_win32 *data = t->priv;
1367
1368 timeKillEvent(data->timerId);
1369 timeEndPeriod(data->period);
c8994013
TS		 1370}
1371
efe75411
TS		 1372static void win32_rearm_timer(struct qemu_alarm_timer *t)
1373{
1374 struct qemu_alarm_win32 *data = t->priv;
efe75411 1375
0fdddf80 1376 if (!active_timers[QEMU_CLOCK_REALTIME] &&
21d5d12b
JK		 1377 !active_timers[QEMU_CLOCK_VIRTUAL] &&
1378 !active_timers[QEMU_CLOCK_HOST])
d5d08334 1379 return;
efe75411 1380
efe75411
TS		 1381 timeKillEvent(data->timerId);
1382
1383 data->timerId = timeSetEvent(1,
1384 data->period,
1385 host_alarm_handler,
1386 (DWORD)t,
1387 TIME_ONESHOT | TIME_PERIODIC);
1388
1389 if (!data->timerId) {
20889d4e 1390 fprintf(stderr, "Failed to re-arm win32 alarm timer %ld\n",
705e83f6 1391 GetLastError());
efe75411
TS		 1392
1393 timeEndPeriod(data->period);
efe75411
TS		 1394 exit(1);
1395 }
1396}
1397
c8994013
TS		 1398#endif /* _WIN32 */
1399
7183b4b4 1400static int init_timer_alarm(void)
8a7ddc38 1401{
223f0d72 1402 struct qemu_alarm_timer *t = NULL;
c8994013 1403 int i, err = -1;
f49e58dc 1404
c8994013
TS		 1405 for (i = 0; alarm_timers[i].name; i++) {
1406 t = &alarm_timers[i];
1407
c8994013
TS		 1408 err = t->start(t);
1409 if (!err)
1410 break;
67b915a5 1411 }
fd872598 1412
c8994013 1413 if (err) {
7183b4b4
AL		 1414 err = -ENOENT;
1415 goto fail;
67b915a5 1416 }
c8994013
TS		 1417
1418 alarm_timer = t;
7183b4b4 1419
6abfbd79 1420 return 0;
7183b4b4
AL		 1421
1422fail:
7183b4b4 1423 return err;
8a7ddc38
FB		 1424}
1425
9596ebb7 1426static void quit_timers(void)
40c3bac3 1427{
c8994013
TS		 1428 alarm_timer->stop(alarm_timer);
1429 alarm_timer = NULL;
40c3bac3
FB		 1430}
1431
f6503059
AZ		 1432/***********************************************************/
1433/* host time/date access */
1434void qemu_get_timedate(struct tm *tm, int offset)
1435{
1436 time_t ti;
1437 struct tm *ret;
1438
1439 time(&ti);
1440 ti += offset;
1441 if (rtc_date_offset == -1) {
1442 if (rtc_utc)
1443 ret = gmtime(&ti);
1444 else
1445 ret = localtime(&ti);
1446 } else {
1447 ti -= rtc_date_offset;
1448 ret = gmtime(&ti);
1449 }
1450
1451 memcpy(tm, ret, sizeof(struct tm));
1452}
1453
1454int qemu_timedate_diff(struct tm *tm)
1455{
1456 time_t seconds;
1457
1458 if (rtc_date_offset == -1)
1459 if (rtc_utc)
1460 seconds = mktimegm(tm);
1461 else
1462 seconds = mktime(tm);
1463 else
1464 seconds = mktimegm(tm) + rtc_date_offset;
1465
1466 return seconds - time(NULL);
1467}
1468
1ed2fc1f
JK		 1469static void configure_rtc_date_offset(const char *startdate, int legacy)
1470{
1471 time_t rtc_start_date;
1472 struct tm tm;
1473
1474 if (!strcmp(startdate, "now") && legacy) {
1475 rtc_date_offset = -1;
1476 } else {
1477 if (sscanf(startdate, "%d-%d-%dT%d:%d:%d",
1478 &tm.tm_year,
1479 &tm.tm_mon,
1480 &tm.tm_mday,
1481 &tm.tm_hour,
1482 &tm.tm_min,
1483 &tm.tm_sec) == 6) {
1484 /* OK */
1485 } else if (sscanf(startdate, "%d-%d-%d",
1486 &tm.tm_year,
1487 &tm.tm_mon,
1488 &tm.tm_mday) == 3) {
1489 tm.tm_hour = 0;
1490 tm.tm_min = 0;
1491 tm.tm_sec = 0;
1492 } else {
1493 goto date_fail;
1494 }
1495 tm.tm_year -= 1900;
1496 tm.tm_mon--;
1497 rtc_start_date = mktimegm(&tm);
1498 if (rtc_start_date == -1) {
1499 date_fail:
1500 fprintf(stderr, "Invalid date format. Valid formats are:\n"
1501 "'2006-06-17T16:01:21' or '2006-06-17'\n");
1502 exit(1);
1503 }
1504 rtc_date_offset = time(NULL) - rtc_start_date;
1505 }
1506}
1507
1508static void configure_rtc(QemuOpts *opts)
1509{
1510 const char *value;
1511
1512 value = qemu_opt_get(opts, "base");
1513 if (value) {
1514 if (!strcmp(value, "utc")) {
1515 rtc_utc = 1;
1516 } else if (!strcmp(value, "localtime")) {
1517 rtc_utc = 0;
1518 } else {
1519 configure_rtc_date_offset(value, 0);
1520 }
1521 }
6875204c
JK		 1522 value = qemu_opt_get(opts, "clock");
1523 if (value) {
1524 if (!strcmp(value, "host")) {
1525 rtc_clock = host_clock;
1526 } else if (!strcmp(value, "vm")) {
1527 rtc_clock = vm_clock;
1528 } else {
1529 fprintf(stderr, "qemu: invalid option value '%s'\n", value);
1530 exit(1);
1531 }
1532 }
1ed2fc1f
JK		 1533#ifdef CONFIG_TARGET_I386
1534 value = qemu_opt_get(opts, "driftfix");
1535 if (value) {
1536 if (!strcmp(buf, "slew")) {
1537 rtc_td_hack = 1;
1538 } else if (!strcmp(buf, "none")) {
1539 rtc_td_hack = 0;
1540 } else {
1541 fprintf(stderr, "qemu: invalid option value '%s'\n", value);
1542 exit(1);
1543 }
1544 }
1545#endif
1546}
1547
fd1dff4b 1548#ifdef _WIN32
fd1dff4b
FB		 1549static void socket_cleanup(void)
1550{
1551 WSACleanup();
1552}
82c643ff 1553
fd1dff4b
FB		 1554static int socket_init(void)
1555{
1556 WSADATA Data;
1557 int ret, err;
1558
1559 ret = WSAStartup(MAKEWORD(2,2), &Data);
1560 if (ret != 0) {
1561 err = WSAGetLastError();
1562 fprintf(stderr, "WSAStartup: %d\n", err);
1563 return -1;
1564 }
1565 atexit(socket_cleanup);
1566 return 0;
1567}
64b7b733
AJ		 1568#endif
1569
1ae26a18
AZ		 1570/***********************************************************/
1571/* Bluetooth support */
1572static int nb_hcis;
1573static int cur_hci;
1574static struct HCIInfo *hci_table[MAX_NICS];
dc72ac14 1575
1ae26a18
AZ		 1576static struct bt_vlan_s {
1577 struct bt_scatternet_s net;
1578 int id;
1579 struct bt_vlan_s *next;
1580} *first_bt_vlan;
1581
1582/* find or alloc a new bluetooth "VLAN" */
674bb261 1583static struct bt_scatternet_s *qemu_find_bt_vlan(int id)
1ae26a18
AZ		 1584{
1585 struct bt_vlan_s **pvlan, *vlan;
1586 for (vlan = first_bt_vlan; vlan != NULL; vlan = vlan->next) {
1587 if (vlan->id == id)
1588 return &vlan->net;
1589 }
1590 vlan = qemu_mallocz(sizeof(struct bt_vlan_s));
1591 vlan->id = id;
1592 pvlan = &first_bt_vlan;
1593 while (*pvlan != NULL)
1594 pvlan = &(*pvlan)->next;
1595 *pvlan = vlan;
1596 return &vlan->net;
1597}
1598
1599static void null_hci_send(struct HCIInfo *hci, const uint8_t *data, int len)
1600{
1601}
1602
1603static int null_hci_addr_set(struct HCIInfo *hci, const uint8_t *bd_addr)
1604{
1605 return -ENOTSUP;
1606}
1607
1608static struct HCIInfo null_hci = {
1609 .cmd_send = null_hci_send,
1610 .sco_send = null_hci_send,
1611 .acl_send = null_hci_send,
1612 .bdaddr_set = null_hci_addr_set,
1613};
1614
1615struct HCIInfo *qemu_next_hci(void)
1616{
1617 if (cur_hci == nb_hcis)
1618 return &null_hci;
1619
1620 return hci_table[cur_hci++];
1621}
1622
dc72ac14
AZ		 1623static struct HCIInfo *hci_init(const char *str)
1624{
1625 char *endp;
1626 struct bt_scatternet_s *vlan = 0;
1627
1628 if (!strcmp(str, "null"))
1629 /* null */
1630 return &null_hci;
1631 else if (!strncmp(str, "host", 4) && (str[4] == '\0' || str[4] == ':'))
1632 /* host[:hciN] */
1633 return bt_host_hci(str[4] ? str + 5 : "hci0");
1634 else if (!strncmp(str, "hci", 3)) {
1635 /* hci[,vlan=n] */
1636 if (str[3]) {
1637 if (!strncmp(str + 3, ",vlan=", 6)) {
1638 vlan = qemu_find_bt_vlan(strtol(str + 9, &endp, 0));
1639 if (*endp)
1640 vlan = 0;
1641 }
1642 } else
1643 vlan = qemu_find_bt_vlan(0);
1644 if (vlan)
1645 return bt_new_hci(vlan);
1646 }
1647
1648 fprintf(stderr, "qemu: Unknown bluetooth HCI `%s'.\n", str);
1649
1650 return 0;
1651}
1652
1653static int bt_hci_parse(const char *str)
1654{
1655 struct HCIInfo *hci;
c227f099 1656 bdaddr_t bdaddr;
dc72ac14
AZ		 1657
1658 if (nb_hcis >= MAX_NICS) {
1659 fprintf(stderr, "qemu: Too many bluetooth HCIs (max %i).\n", MAX_NICS);
1660 return -1;
1661 }
1662
1663 hci = hci_init(str);
1664 if (!hci)
1665 return -1;
1666
1667 bdaddr.b[0] = 0x52;
1668 bdaddr.b[1] = 0x54;
1669 bdaddr.b[2] = 0x00;
1670 bdaddr.b[3] = 0x12;
1671 bdaddr.b[4] = 0x34;
1672 bdaddr.b[5] = 0x56 + nb_hcis;
1673 hci->bdaddr_set(hci, bdaddr.b);
1674
1675 hci_table[nb_hcis++] = hci;
1676
1677 return 0;
1678}
1679
1680static void bt_vhci_add(int vlan_id)
1681{
1682 struct bt_scatternet_s *vlan = qemu_find_bt_vlan(vlan_id);
1683
1684 if (!vlan->slave)
1685 fprintf(stderr, "qemu: warning: adding a VHCI to "
1686 "an empty scatternet %i\n", vlan_id);
1687
1688 bt_vhci_init(bt_new_hci(vlan));
1689}
1690
1691static struct bt_device_s *bt_device_add(const char *opt)
1692{
1693 struct bt_scatternet_s *vlan;
1694 int vlan_id = 0;
1695 char *endp = strstr(opt, ",vlan=");
1696 int len = (endp ? endp - opt : strlen(opt)) + 1;
1697 char devname[10];
1698
1699 pstrcpy(devname, MIN(sizeof(devname), len), opt);
1700
1701 if (endp) {
1702 vlan_id = strtol(endp + 6, &endp, 0);
1703 if (*endp) {
1704 fprintf(stderr, "qemu: unrecognised bluetooth vlan Id\n");
1705 return 0;
1706 }
1707 }
1708
1709 vlan = qemu_find_bt_vlan(vlan_id);
1710
1711 if (!vlan->slave)
1712 fprintf(stderr, "qemu: warning: adding a slave device to "
1713 "an empty scatternet %i\n", vlan_id);
1714
1715 if (!strcmp(devname, "keyboard"))
1716 return bt_keyboard_init(vlan);
1717
1718 fprintf(stderr, "qemu: unsupported bluetooth device `%s'\n", devname);
1719 return 0;
1720}
1721
1722static int bt_parse(const char *opt)
1723{
1724 const char *endp, *p;
1725 int vlan;
1726
1727 if (strstart(opt, "hci", &endp)) {
1728 if (!*endp || *endp == ',') {
1729 if (*endp)
1730 if (!strstart(endp, ",vlan=", 0))
1731 opt = endp + 1;
1732
1733 return bt_hci_parse(opt);
1734 }
1735 } else if (strstart(opt, "vhci", &endp)) {
1736 if (!*endp || *endp == ',') {
1737 if (*endp) {
1738 if (strstart(endp, ",vlan=", &p)) {
1739 vlan = strtol(p, (char **) &endp, 0);
1740 if (*endp) {
1741 fprintf(stderr, "qemu: bad scatternet '%s'\n", p);
1742 return 1;
1743 }
1744 } else {
1745 fprintf(stderr, "qemu: bad parameter '%s'\n", endp + 1);
1746 return 1;
1747 }
1748 } else
1749 vlan = 0;
1750
1751 bt_vhci_add(vlan);
1752 return 0;
1753 }
1754 } else if (strstart(opt, "device:", &endp))
1755 return !bt_device_add(endp);
1756
1757 fprintf(stderr, "qemu: bad bluetooth parameter '%s'\n", opt);
1758 return 1;
1759}
1760
1ae26a18
AZ		 1761/***********************************************************/
1762/* QEMU Block devices */
1763
609497ab 1764#define HD_ALIAS "index=%d,media=disk"
e4bcb14c 1765#define CDROM_ALIAS "index=2,media=cdrom"
e4bcb14c 1766#define FD_ALIAS "index=%d,if=floppy"
609497ab
AZ		 1767#define PFLASH_ALIAS "if=pflash"
1768#define MTD_ALIAS "if=mtd"
9d413d1d 1769#define SD_ALIAS "index=0,if=sd"
e4bcb14c 1770
9dfd7c7a 1771QemuOpts *drive_add(const char *file, const char *fmt, ...)
e4bcb14c
TS		 1772{
1773 va_list ap;
9dfd7c7a
GH		 1774 char optstr[1024];
1775 QemuOpts *opts;
e4bcb14c 1776
e4bcb14c 1777 va_start(ap, fmt);
9dfd7c7a 1778 vsnprintf(optstr, sizeof(optstr), fmt, ap);
e4bcb14c
TS		 1779 va_end(ap);
1780
7282a033 1781 opts = qemu_opts_parse(&qemu_drive_opts, optstr, NULL);
9dfd7c7a
GH		 1782 if (!opts) {
1783 fprintf(stderr, "%s: huh? duplicate? (%s)\n",
1784 __FUNCTION__, optstr);
1785 return NULL;
1786 }
1787 if (file)
1788 qemu_opt_set(opts, "file", file);
1789 return opts;
b01b1111
AL		 1790}
1791
751c6a17 1792DriveInfo *drive_get(BlockInterfaceType type, int bus, int unit)
e4bcb14c 1793{
751c6a17 1794 DriveInfo *dinfo;
e4bcb14c
TS		 1795
1796 /* seek interface, bus and unit */
1797
72cf2d4f 1798 QTAILQ_FOREACH(dinfo, &drives, next) {
751c6a17
GH		 1799 if (dinfo->type == type &&
1800 dinfo->bus == bus &&
1801 dinfo->unit == unit)
1802 return dinfo;
1803 }
e4bcb14c 1804
751c6a17 1805 return NULL;
e4bcb14c
TS		 1806}
1807
2e810b36 1808DriveInfo *drive_get_by_id(const char *id)
1dae12e6
GH		 1809{
1810 DriveInfo *dinfo;
1811
72cf2d4f 1812 QTAILQ_FOREACH(dinfo, &drives, next) {
1dae12e6
GH		 1813 if (strcmp(id, dinfo->id))
1814 continue;
1815 return dinfo;
1816 }
1817 return NULL;
1818}
1819
f60d39bc 1820int drive_get_max_bus(BlockInterfaceType type)
e4bcb14c
TS		 1821{
1822 int max_bus;
751c6a17 1823 DriveInfo *dinfo;
e4bcb14c
TS		 1824
1825 max_bus = -1;
72cf2d4f 1826 QTAILQ_FOREACH(dinfo, &drives, next) {
751c6a17
GH		 1827 if(dinfo->type == type &&
1828 dinfo->bus > max_bus)
1829 max_bus = dinfo->bus;
e4bcb14c
TS		 1830 }
1831 return max_bus;
1832}
1833
fa879c64
AL		 1834const char *drive_get_serial(BlockDriverState *bdrv)
1835{
751c6a17 1836 DriveInfo *dinfo;
fa879c64 1837
72cf2d4f 1838 QTAILQ_FOREACH(dinfo, &drives, next) {
751c6a17
GH		 1839 if (dinfo->bdrv == bdrv)
1840 return dinfo->serial;
1841 }
fa879c64
AL		 1842
1843 return "\0";
1844}
1845
f7850099
KW		 1846BlockInterfaceErrorAction drive_get_on_error(
1847 BlockDriverState *bdrv, int is_read)
428c5705 1848{
751c6a17 1849 DriveInfo *dinfo;
428c5705 1850
72cf2d4f 1851 QTAILQ_FOREACH(dinfo, &drives, next) {
751c6a17 1852 if (dinfo->bdrv == bdrv)
e9b2e818 1853 return is_read ? dinfo->on_read_error : dinfo->on_write_error;
751c6a17 1854 }
428c5705 1855
e9b2e818 1856 return is_read ? BLOCK_ERR_REPORT : BLOCK_ERR_STOP_ENOSPC;
428c5705
AL		 1857}
1858
a1620fac
AJ		 1859static void bdrv_format_print(void *opaque, const char *name)
1860{
1861 fprintf(stderr, " %s", name);
1862}
1863
56a14938 1864void drive_uninit(DriveInfo *dinfo)
b01b1111 1865{
56a14938
GH		 1866 qemu_opts_del(dinfo->opts);
1867 bdrv_delete(dinfo->bdrv);
1868 QTAILQ_REMOVE(&drives, dinfo, next);
1869 qemu_free(dinfo);
b01b1111
AL		 1870}
1871
e9b2e818
KW		 1872static int parse_block_error_action(const char *buf, int is_read)
1873{
1874 if (!strcmp(buf, "ignore")) {
1875 return BLOCK_ERR_IGNORE;
1876 } else if (!is_read && !strcmp(buf, "enospc")) {
1877 return BLOCK_ERR_STOP_ENOSPC;
1878 } else if (!strcmp(buf, "stop")) {
1879 return BLOCK_ERR_STOP_ANY;
1880 } else if (!strcmp(buf, "report")) {
1881 return BLOCK_ERR_REPORT;
1882 } else {
1883 fprintf(stderr, "qemu: '%s' invalid %s error action\n",
1884 buf, is_read ? "read" : "write");
1885 return -1;
1886 }
1887}
1888
9dfd7c7a 1889DriveInfo *drive_init(QemuOpts *opts, void *opaque,
751c6a17 1890 int *fatal_error)
e4bcb14c 1891{
9dfd7c7a
GH		 1892 const char *buf;
1893 const char *file = NULL;
c8522bdf 1894 char devname[128];
9dfd7c7a 1895 const char *serial;
c8522bdf 1896 const char *mediastr = "";
f60d39bc 1897 BlockInterfaceType type;
e4bcb14c
TS		 1898 enum { MEDIA_DISK, MEDIA_CDROM } media;
1899 int bus_id, unit_id;
1900 int cyls, heads, secs, translation;
1e72d3b7 1901 BlockDriver *drv = NULL;
4d73cd3b 1902 QEMUMachine *machine = opaque;
e4bcb14c
TS		 1903 int max_devs;
1904 int index;
33f00271 1905 int cache;
5c6c3a6c 1906 int aio = 0;
59f2689d 1907 int ro = 0;
e9b2e818
KW		 1908 int bdrv_flags;
1909 int on_read_error, on_write_error;
c2cc47a4 1910 const char *devaddr;
751c6a17 1911 DriveInfo *dinfo;
9dfd7c7a 1912 int snapshot = 0;
e4bcb14c 1913
9dfd7c7a 1914 *fatal_error = 1;
e4bcb14c 1915
e4bcb14c 1916 translation = BIOS_ATA_TRANSLATION_AUTO;
0aa217e4 1917 cache = 1;
e4bcb14c 1918
4d007814 1919 if (machine && machine->use_scsi) {
f60d39bc 1920 type = IF_SCSI;
e4bcb14c 1921 max_devs = MAX_SCSI_DEVS;
363a37d5 1922 pstrcpy(devname, sizeof(devname), "scsi");
e4bcb14c 1923 } else {
f60d39bc 1924 type = IF_IDE;
e4bcb14c 1925 max_devs = MAX_IDE_DEVS;
363a37d5 1926 pstrcpy(devname, sizeof(devname), "ide");
e4bcb14c
TS		 1927 }
1928 media = MEDIA_DISK;
1929
1930 /* extract parameters */
9dfd7c7a
GH		 1931 bus_id = qemu_opt_get_number(opts, "bus", 0);
1932 unit_id = qemu_opt_get_number(opts, "unit", -1);
1933 index = qemu_opt_get_number(opts, "index", -1);
e4bcb14c 1934
9dfd7c7a
GH		 1935 cyls = qemu_opt_get_number(opts, "cyls", 0);
1936 heads = qemu_opt_get_number(opts, "heads", 0);
1937 secs = qemu_opt_get_number(opts, "secs", 0);
e4bcb14c 1938
9dfd7c7a 1939 snapshot = qemu_opt_get_bool(opts, "snapshot", 0);
59f2689d 1940 ro = qemu_opt_get_bool(opts, "readonly", 0);
e4bcb14c 1941
9dfd7c7a
GH		 1942 file = qemu_opt_get(opts, "file");
1943 serial = qemu_opt_get(opts, "serial");
1944
1945 if ((buf = qemu_opt_get(opts, "if")) != NULL) {
ae45d369 1946 pstrcpy(devname, sizeof(devname), buf);
e4bcb14c 1947 if (!strcmp(buf, "ide")) {
f60d39bc 1948 type = IF_IDE;
e4bcb14c
TS		 1949 max_devs = MAX_IDE_DEVS;
1950 } else if (!strcmp(buf, "scsi")) {
f60d39bc 1951 type = IF_SCSI;
e4bcb14c
TS		 1952 max_devs = MAX_SCSI_DEVS;
1953 } else if (!strcmp(buf, "floppy")) {
f60d39bc 1954 type = IF_FLOPPY;
e4bcb14c
TS		 1955 max_devs = 0;
1956 } else if (!strcmp(buf, "pflash")) {
f60d39bc 1957 type = IF_PFLASH;
e4bcb14c
TS		 1958 max_devs = 0;
1959 } else if (!strcmp(buf, "mtd")) {
f60d39bc 1960 type = IF_MTD;
e4bcb14c
TS		 1961 max_devs = 0;
1962 } else if (!strcmp(buf, "sd")) {
f60d39bc 1963 type = IF_SD;
e4bcb14c 1964 max_devs = 0;
6e02c38d
AL		 1965 } else if (!strcmp(buf, "virtio")) {
1966 type = IF_VIRTIO;
1967 max_devs = 0;
62d23efa
AL		 1968 } else if (!strcmp(buf, "xen")) {
1969 type = IF_XEN;
1970 max_devs = 0;
a8659e90
GH		 1971 } else if (!strcmp(buf, "none")) {
1972 type = IF_NONE;
1973 max_devs = 0;
62d23efa 1974 } else {
9dfd7c7a 1975 fprintf(stderr, "qemu: unsupported bus type '%s'\n", buf);
751c6a17 1976 return NULL;
e4bcb14c
TS		 1977 }
1978 }
1979
e4bcb14c 1980 if (cyls || heads || secs) {
5afe3f04 1981 if (cyls < 1 || (type == IF_IDE && cyls > 16383)) {
9dfd7c7a 1982 fprintf(stderr, "qemu: '%s' invalid physical cyls number\n", buf);
751c6a17 1983 return NULL;
e4bcb14c 1984 }
5afe3f04 1985 if (heads < 1 || (type == IF_IDE && heads > 16)) {
9dfd7c7a 1986 fprintf(stderr, "qemu: '%s' invalid physical heads number\n", buf);
751c6a17 1987 return NULL;
e4bcb14c 1988 }
5afe3f04 1989 if (secs < 1 || (type == IF_IDE && secs > 63)) {
9dfd7c7a 1990 fprintf(stderr, "qemu: '%s' invalid physical secs number\n", buf);
751c6a17 1991 return NULL;
e4bcb14c
TS		 1992 }
1993 }
1994
9dfd7c7a 1995 if ((buf = qemu_opt_get(opts, "trans")) != NULL) {
e4bcb14c
TS		 1996 if (!cyls) {
1997 fprintf(stderr,
1998 "qemu: '%s' trans must be used with cyls,heads and secs\n",
9dfd7c7a 1999 buf);
751c6a17 2000 return NULL;
e4bcb14c
TS		 2001 }
2002 if (!strcmp(buf, "none"))
2003 translation = BIOS_ATA_TRANSLATION_NONE;
2004 else if (!strcmp(buf, "lba"))
2005 translation = BIOS_ATA_TRANSLATION_LBA;
2006 else if (!strcmp(buf, "auto"))
2007 translation = BIOS_ATA_TRANSLATION_AUTO;
2008 else {
9dfd7c7a 2009 fprintf(stderr, "qemu: '%s' invalid translation type\n", buf);
751c6a17 2010 return NULL;
e4bcb14c
TS		 2011 }
2012 }
2013
9dfd7c7a 2014 if ((buf = qemu_opt_get(opts, "media")) != NULL) {
e4bcb14c
TS		 2015 if (!strcmp(buf, "disk")) {
2016 media = MEDIA_DISK;
2017 } else if (!strcmp(buf, "cdrom")) {
2018 if (cyls || secs || heads) {
2019 fprintf(stderr,
9dfd7c7a 2020 "qemu: '%s' invalid physical CHS format\n", buf);
751c6a17 2021 return NULL;
e4bcb14c
TS		 2022 }
2023 media = MEDIA_CDROM;
2024 } else {
9dfd7c7a 2025 fprintf(stderr, "qemu: '%s' invalid media\n", buf);
751c6a17 2026 return NULL;
e4bcb14c
TS		 2027 }
2028 }
2029
9dfd7c7a 2030 if ((buf = qemu_opt_get(opts, "cache")) != NULL) {
9f7965c7 2031 if (!strcmp(buf, "off") || !strcmp(buf, "none"))
33f00271 2032 cache = 0;
9f7965c7 2033 else if (!strcmp(buf, "writethrough"))
33f00271 2034 cache = 1;
9f7965c7
AL		 2035 else if (!strcmp(buf, "writeback"))
2036 cache = 2;
33f00271
AZ		 2037 else {
2038 fprintf(stderr, "qemu: invalid cache option\n");
751c6a17 2039 return NULL;
33f00271
AZ		 2040 }
2041 }
2042
5c6c3a6c
CH		 2043#ifdef CONFIG_LINUX_AIO
2044 if ((buf = qemu_opt_get(opts, "aio")) != NULL) {
2045 if (!strcmp(buf, "threads"))
2046 aio = 0;
2047 else if (!strcmp(buf, "native"))
2048 aio = 1;
2049 else {
2050 fprintf(stderr, "qemu: invalid aio option\n");
2051 return NULL;
2052 }
2053 }
2054#endif
2055
9dfd7c7a 2056 if ((buf = qemu_opt_get(opts, "format")) != NULL) {
a1620fac
AJ		 2057 if (strcmp(buf, "?") == 0) {
2058 fprintf(stderr, "qemu: Supported formats:");
2059 bdrv_iterate_format(bdrv_format_print, NULL);
2060 fprintf(stderr, "\n");
751c6a17 2061 return NULL;
a1620fac 2062 }
eb852011 2063 drv = bdrv_find_whitelisted_format(buf);
1e72d3b7
AJ		 2064 if (!drv) {
2065 fprintf(stderr, "qemu: '%s' invalid format\n", buf);
751c6a17 2066 return NULL;
1e72d3b7
AJ		 2067 }
2068 }
2069
e9b2e818 2070 on_write_error = BLOCK_ERR_STOP_ENOSPC;
9dfd7c7a 2071 if ((buf = qemu_opt_get(opts, "werror")) != NULL) {
869a5c6d 2072 if (type != IF_IDE && type != IF_SCSI && type != IF_VIRTIO) {
ea8a5d7f 2073 fprintf(stderr, "werror is no supported by this format\n");
751c6a17 2074 return NULL;
428c5705 2075 }
e9b2e818
KW		 2076
2077 on_write_error = parse_block_error_action(buf, 0);
2078 if (on_write_error < 0) {
2079 return NULL;
2080 }
2081 }
2082
2083 on_read_error = BLOCK_ERR_REPORT;
2084 if ((buf = qemu_opt_get(opts, "rerror")) != NULL) {
f35d68f0 2085 if (type != IF_IDE && type != IF_VIRTIO) {
e9b2e818
KW		 2086 fprintf(stderr, "rerror is no supported by this format\n");
2087 return NULL;
2088 }
2089
2090 on_read_error = parse_block_error_action(buf, 1);
2091 if (on_read_error < 0) {
751c6a17 2092 return NULL;
428c5705
AL		 2093 }
2094 }
2095
9dfd7c7a 2096 if ((devaddr = qemu_opt_get(opts, "addr")) != NULL) {
c2cc47a4 2097 if (type != IF_VIRTIO) {
9dfd7c7a 2098 fprintf(stderr, "addr is not supported\n");
751c6a17 2099 return NULL;
c2cc47a4 2100 }
c2cc47a4
MA		 2101 }
2102
e4bcb14c
TS		 2103 /* compute bus and unit according index */
2104
2105 if (index != -1) {
2106 if (bus_id != 0 || unit_id != -1) {
2107 fprintf(stderr,
9dfd7c7a 2108 "qemu: index cannot be used with bus and unit\n");
751c6a17 2109 return NULL;
e4bcb14c
TS		 2110 }
2111 if (max_devs == 0)
2112 {
2113 unit_id = index;
2114 bus_id = 0;
2115 } else {
2116 unit_id = index % max_devs;
2117 bus_id = index / max_devs;
2118 }
2119 }
2120
2121 /* if user doesn't specify a unit_id,
2122 * try to find the first free
2123 */
2124
2125 if (unit_id == -1) {
2126 unit_id = 0;
751c6a17 2127 while (drive_get(type, bus_id, unit_id) != NULL) {
e4bcb14c
TS		 2128 unit_id++;
2129 if (max_devs && unit_id >= max_devs) {
2130 unit_id -= max_devs;
2131 bus_id++;
2132 }
2133 }
2134 }
2135
2136 /* check unit id */
2137
2138 if (max_devs && unit_id >= max_devs) {
9dfd7c7a
GH		 2139 fprintf(stderr, "qemu: unit %d too big (max is %d)\n",
2140 unit_id, max_devs - 1);
751c6a17 2141 return NULL;
e4bcb14c
TS		 2142 }
2143
2144 /*
2145 * ignore multiple definitions
2146 */
2147
751c6a17
GH		 2148 if (drive_get(type, bus_id, unit_id) != NULL) {
2149 *fatal_error = 0;
2150 return NULL;
2151 }
e4bcb14c
TS		 2152
2153 /* init */
2154
751c6a17 2155 dinfo = qemu_mallocz(sizeof(*dinfo));
e23d9c4d 2156 if ((buf = qemu_opts_id(opts)) != NULL) {
9dfd7c7a
GH		 2157 dinfo->id = qemu_strdup(buf);
2158 } else {
1dae12e6 2159 /* no id supplied -> create one */
9dfd7c7a 2160 dinfo->id = qemu_mallocz(32);
1dae12e6
GH		 2161 if (type == IF_IDE || type == IF_SCSI)
2162 mediastr = (media == MEDIA_CDROM) ? "-cd" : "-hd";
2163 if (max_devs)
9dfd7c7a 2164 snprintf(dinfo->id, 32, "%s%i%s%i",
1dae12e6
GH		 2165 devname, bus_id, mediastr, unit_id);
2166 else
9dfd7c7a 2167 snprintf(dinfo->id, 32, "%s%s%i",
1dae12e6
GH		 2168 devname, mediastr, unit_id);
2169 }
1dae12e6 2170 dinfo->bdrv = bdrv_new(dinfo->id);
751c6a17
GH		 2171 dinfo->devaddr = devaddr;
2172 dinfo->type = type;
2173 dinfo->bus = bus_id;
2174 dinfo->unit = unit_id;
e9b2e818
KW		 2175 dinfo->on_read_error = on_read_error;
2176 dinfo->on_write_error = on_write_error;
9dfd7c7a
GH		 2177 dinfo->opts = opts;
2178 if (serial)
2179 strncpy(dinfo->serial, serial, sizeof(serial));
72cf2d4f 2180 QTAILQ_INSERT_TAIL(&drives, dinfo, next);
e4bcb14c 2181
f60d39bc 2182 switch(type) {
e4bcb14c
TS		 2183 case IF_IDE:
2184 case IF_SCSI:
62d23efa 2185 case IF_XEN:
c219331e 2186 case IF_NONE:
e4bcb14c
TS		 2187 switch(media) {
2188 case MEDIA_DISK:
2189 if (cyls != 0) {
1dae12e6
GH		 2190 bdrv_set_geometry_hint(dinfo->bdrv, cyls, heads, secs);
2191 bdrv_set_translation_hint(dinfo->bdrv, translation);
e4bcb14c
TS		 2192 }
2193 break;
2194 case MEDIA_CDROM:
1dae12e6 2195 bdrv_set_type_hint(dinfo->bdrv, BDRV_TYPE_CDROM);
e4bcb14c
TS		 2196 break;
2197 }
2198 break;
2199 case IF_SD:
2200 /* FIXME: This isn't really a floppy, but it's a reasonable
2201 approximation. */
2202 case IF_FLOPPY:
1dae12e6 2203 bdrv_set_type_hint(dinfo->bdrv, BDRV_TYPE_FLOPPY);
e4bcb14c
TS		 2204 break;
2205 case IF_PFLASH:
2206 case IF_MTD:
2207 break;
d176c495
GH		 2208 case IF_VIRTIO:
2209 /* add virtio block device */
2210 opts = qemu_opts_create(&qemu_device_opts, NULL, 0);
2211 qemu_opt_set(opts, "driver", "virtio-blk-pci");
2212 qemu_opt_set(opts, "drive", dinfo->id);
2213 if (devaddr)
2214 qemu_opt_set(opts, "addr", devaddr);
2215 break;
aae9460e
PB		 2216 case IF_COUNT:
2217 abort();
e4bcb14c 2218 }
9dfd7c7a 2219 if (!file) {
751c6a17
GH		 2220 *fatal_error = 0;
2221 return NULL;
2222 }
33f00271 2223 bdrv_flags = 0;
9f7965c7 2224 if (snapshot) {
33f00271 2225 bdrv_flags |= BDRV_O_SNAPSHOT;
9f7965c7
AL		 2226 cache = 2; /* always use write-back with snapshot */
2227 }
2228 if (cache == 0) /* no caching */
2229 bdrv_flags |= BDRV_O_NOCACHE;
2230 else if (cache == 2) /* write-back */
2231 bdrv_flags |= BDRV_O_CACHE_WB;
5c6c3a6c
CH		 2232
2233 if (aio == 1) {
2234 bdrv_flags |= BDRV_O_NATIVE_AIO;
2235 } else {
2236 bdrv_flags &= ~BDRV_O_NATIVE_AIO;
2237 }
2238
59f2689d 2239 if (ro == 1) {
f5edb014
NS		 2240 if (type != IF_SCSI && type != IF_VIRTIO && type != IF_FLOPPY) {
2241 fprintf(stderr, "qemu: readonly flag not supported for drive with this interface\n");
59f2689d
NS		 2242 return NULL;
2243 }
b196b153
NS		 2244 }
2245 /*
2246 * cdrom is read-only. Set it now, after above interface checking
2247 * since readonly attribute not explicitly required, so no error.
2248 */
2249 if (media == MEDIA_CDROM) {
f5edb014 2250 ro = 1;
59f2689d 2251 }
f5edb014 2252 bdrv_flags |= ro ? 0 : BDRV_O_RDWR;
59f2689d 2253
1dae12e6 2254 if (bdrv_open2(dinfo->bdrv, file, bdrv_flags, drv) < 0) {
850810d0
JF		 2255 fprintf(stderr, "qemu: could not open disk image %s: %s\n",
2256 file, strerror(errno));
751c6a17 2257 return NULL;
e4bcb14c 2258 }
5c6c3a6c 2259
1dae12e6 2260 if (bdrv_key_required(dinfo->bdrv))
c0f4ce77 2261 autostart = 0;
751c6a17
GH		 2262 *fatal_error = 0;
2263 return dinfo;
e4bcb14c
TS		 2264}
2265
9dfd7c7a
GH		 2266static int drive_init_func(QemuOpts *opts, void *opaque)
2267{
2268 QEMUMachine *machine = opaque;
2269 int fatal_error = 0;
2270
2271 if (drive_init(opts, machine, &fatal_error) == NULL) {
2272 if (fatal_error)
2273 return 1;
2274 }
2275 return 0;
2276}
2277
2278static int drive_enable_snapshot(QemuOpts *opts, void *opaque)
2279{
2280 if (NULL == qemu_opt_get(opts, "snapshot")) {
2281 qemu_opt_set(opts, "snapshot", "on");
2282 }
2283 return 0;
2284}
2285
76e30d0f
JK		 2286void qemu_register_boot_set(QEMUBootSetHandler *func, void *opaque)
2287{
2288 boot_set_handler = func;
2289 boot_set_opaque = opaque;
2290}
2291
2292int qemu_boot_set(const char *boot_devices)
2293{
2294 if (!boot_set_handler) {
2295 return -EINVAL;
2296 }
2297 return boot_set_handler(boot_set_opaque, boot_devices);
2298}
2299
ef3adf68
JK		 2300static int parse_bootdevices(char *devices)
2301{
2302 /* We just do some generic consistency checks */
2303 const char *p;
2304 int bitmap = 0;
2305
2306 for (p = devices; *p != '\0'; p++) {
2307 /* Allowed boot devices are:
2308 * a-b: floppy disk drives
2309 * c-f: IDE disk drives
2310 * g-m: machine implementation dependant drives
2311 * n-p: network devices
2312 * It's up to each machine implementation to check if the given boot
2313 * devices match the actual hardware implementation and firmware
2314 * features.
2315 */
2316 if (*p < 'a' || *p > 'p') {
2317 fprintf(stderr, "Invalid boot device '%c'\n", *p);
2318 exit(1);
2319 }
2320 if (bitmap & (1 << (*p - 'a'))) {
2321 fprintf(stderr, "Boot device '%c' was given twice\n", *p);
2322 exit(1);
2323 }
2324 bitmap |= 1 << (*p - 'a');
2325 }
2326 return bitmap;
2327}
2328
e0f084bf
JK		 2329static void restore_boot_devices(void *opaque)
2330{
2331 char *standard_boot_devices = opaque;
2332
2333 qemu_boot_set(standard_boot_devices);
2334
2335 qemu_unregister_reset(restore_boot_devices, standard_boot_devices);
2336 qemu_free(standard_boot_devices);
2337}
2338
268a362c
AL		 2339static void numa_add(const char *optarg)
2340{
2341 char option[128];
2342 char *endptr;
2343 unsigned long long value, endvalue;
2344 int nodenr;
2345
2346 optarg = get_opt_name(option, 128, optarg, ',') + 1;
2347 if (!strcmp(option, "node")) {
2348 if (get_param_value(option, 128, "nodeid", optarg) == 0) {
2349 nodenr = nb_numa_nodes;
2350 } else {
2351 nodenr = strtoull(option, NULL, 10);
2352 }
2353
2354 if (get_param_value(option, 128, "mem", optarg) == 0) {
2355 node_mem[nodenr] = 0;
2356 } else {
2357 value = strtoull(option, &endptr, 0);
2358 switch (*endptr) {
2359 case 0: case 'M': case 'm':
2360 value <<= 20;
2361 break;
2362 case 'G': case 'g':
2363 value <<= 30;
2364 break;
2365 }
2366 node_mem[nodenr] = value;
2367 }
2368 if (get_param_value(option, 128, "cpus", optarg) == 0) {
2369 node_cpumask[nodenr] = 0;
2370 } else {
2371 value = strtoull(option, &endptr, 10);
2372 if (value >= 64) {
2373 value = 63;
2374 fprintf(stderr, "only 64 CPUs in NUMA mode supported.\n");
2375 } else {
2376 if (*endptr == '-') {
2377 endvalue = strtoull(endptr+1, &endptr, 10);
2378 if (endvalue >= 63) {
2379 endvalue = 62;
2380 fprintf(stderr,
2381 "only 63 CPUs in NUMA mode supported.\n");
2382 }
0dfbd514 2383 value = (2ULL << endvalue) - (1ULL << value);
268a362c 2384 } else {
0dfbd514 2385 value = 1ULL << value;
268a362c
AL		 2386 }
2387 }
2388 node_cpumask[nodenr] = value;
2389 }
2390 nb_numa_nodes++;
2391 }
2392 return;
2393}
2394
dc6b1c09
AP		 2395static void smp_parse(const char *optarg)
2396{
2397 int smp, sockets = 0, threads = 0, cores = 0;
2398 char *endptr;
2399 char option[128];
2400
2401 smp = strtoul(optarg, &endptr, 10);
2402 if (endptr != optarg) {
2403 if (*endptr == ',') {
2404 endptr++;
2405 }
2406 }
2407 if (get_param_value(option, 128, "sockets", endptr) != 0)
2408 sockets = strtoull(option, NULL, 10);
2409 if (get_param_value(option, 128, "cores", endptr) != 0)
2410 cores = strtoull(option, NULL, 10);
2411 if (get_param_value(option, 128, "threads", endptr) != 0)
2412 threads = strtoull(option, NULL, 10);
2413 if (get_param_value(option, 128, "maxcpus", endptr) != 0)
2414 max_cpus = strtoull(option, NULL, 10);
2415
2416 /* compute missing values, prefer sockets over cores over threads */
2417 if (smp == 0 || sockets == 0) {
2418 sockets = sockets > 0 ? sockets : 1;
2419 cores = cores > 0 ? cores : 1;
2420 threads = threads > 0 ? threads : 1;
2421 if (smp == 0) {
2422 smp = cores * threads * sockets;
dc6b1c09
AP		 2423 }
2424 } else {
2425 if (cores == 0) {
2426 threads = threads > 0 ? threads : 1;
2427 cores = smp / (sockets * threads);
2428 } else {
5cdc9b76 2429 if (sockets) {
dc6b1c09
AP		 2430 threads = smp / (cores * sockets);
2431 }
2432 }
2433 }
2434 smp_cpus = smp;
2435 smp_cores = cores > 0 ? cores : 1;
2436 smp_threads = threads > 0 ? threads : 1;
2437 if (max_cpus == 0)
2438 max_cpus = smp_cpus;
2439}
2440
a594cfbf
FB		 2441/***********************************************************/
2442/* USB devices */
2443
c0f4ce77 2444static int usb_device_add(const char *devname, int is_hotplug)
a594cfbf
FB		 2445{
2446 const char *p;
a5d2f727 2447 USBDevice *dev = NULL;
a594cfbf 2448
a5d2f727 2449 if (!usb_enabled)
a594cfbf
FB		 2450 return -1;
2451
0958b4cc
GH		 2452 /* drivers with .usbdevice_name entry in USBDeviceInfo */
2453 dev = usbdevice_create(devname);
2454 if (dev)
2455 goto done;
2456
a5d2f727 2457 /* the other ones */
a594cfbf
FB		 2458 if (strstart(devname, "host:", &p)) {
2459 dev = usb_host_device_open(p);
dc72ac14
AZ		 2460 } else if (!strcmp(devname, "bt") || strstart(devname, "bt:", &p)) {
2461 dev = usb_bt_init(devname[2] ? hci_init(p) :
2462 bt_new_hci(qemu_find_bt_vlan(0)));
a594cfbf
FB		 2463 } else {
2464 return -1;
2465 }
0d92ed30
PB		 2466 if (!dev)
2467 return -1;
2468
a5d2f727 2469done:
a594cfbf
FB		 2470 return 0;
2471}
2472
1f3870ab
AL		 2473static int usb_device_del(const char *devname)
2474{
2475 int bus_num, addr;
2476 const char *p;
2477
5d0c5750
AL		 2478 if (strstart(devname, "host:", &p))
2479 return usb_host_device_close(p);
2480
a5d2f727 2481 if (!usb_enabled)
1f3870ab
AL		 2482 return -1;
2483
2484 p = strchr(devname, '.');
2485 if (!p)
2486 return -1;
2487 bus_num = strtoul(devname, NULL, 0);
2488 addr = strtoul(p + 1, NULL, 0);
2489
a5d2f727 2490 return usb_device_delete_addr(bus_num, addr);
1f3870ab
AL		 2491}
2492
bd3c948d
GH		 2493static int usb_parse(const char *cmdline)
2494{
59d1c1c2
ST		 2495 int r;
2496 r = usb_device_add(cmdline, 0);
2497 if (r < 0) {
2498 fprintf(stderr, "qemu: could not add USB device '%s'\n", cmdline);
2499 }
2500 return r;
bd3c948d
GH		 2501}
2502
d54908a5 2503void do_usb_add(Monitor *mon, const QDict *qdict)
a594cfbf 2504{
59d1c1c2
ST		 2505 const char *devname = qdict_get_str(qdict, "devname");
2506 if (usb_device_add(devname, 1) < 0) {
2507 qemu_error("could not add USB device '%s'\n", devname);
2508 }
a594cfbf
FB		 2509}
2510
d54908a5 2511void do_usb_del(Monitor *mon, const QDict *qdict)
a594cfbf 2512{
59d1c1c2
ST		 2513 const char *devname = qdict_get_str(qdict, "devname");
2514 if (usb_device_del(devname) < 0) {
2515 qemu_error("could not delete USB device '%s'\n", devname);
2516 }
a594cfbf
FB		 2517}
2518
201a51fc
AZ		 2519/***********************************************************/
2520/* PCMCIA/Cardbus */
2521
2522static struct pcmcia_socket_entry_s {
bc24a225 2523 PCMCIASocket *socket;
201a51fc
AZ		 2524 struct pcmcia_socket_entry_s *next;
2525} *pcmcia_sockets = 0;
2526
bc24a225 2527void pcmcia_socket_register(PCMCIASocket *socket)
201a51fc
AZ		 2528{
2529 struct pcmcia_socket_entry_s *entry;
2530
2531 entry = qemu_malloc(sizeof(struct pcmcia_socket_entry_s));
2532 entry->socket = socket;
2533 entry->next = pcmcia_sockets;
2534 pcmcia_sockets = entry;
2535}
2536
bc24a225 2537void pcmcia_socket_unregister(PCMCIASocket *socket)
201a51fc
AZ		 2538{
2539 struct pcmcia_socket_entry_s *entry, **ptr;
2540
2541 ptr = &pcmcia_sockets;
2542 for (entry = *ptr; entry; ptr = &entry->next, entry = *ptr)
2543 if (entry->socket == socket) {
2544 *ptr = entry->next;
2545 qemu_free(entry);
2546 }
2547}
2548
376253ec 2549void pcmcia_info(Monitor *mon)
201a51fc
AZ		 2550{
2551 struct pcmcia_socket_entry_s *iter;
376253ec 2552
201a51fc 2553 if (!pcmcia_sockets)
376253ec 2554 monitor_printf(mon, "No PCMCIA sockets\n");
201a51fc
AZ		 2555
2556 for (iter = pcmcia_sockets; iter; iter = iter->next)
376253ec
AL		 2557 monitor_printf(mon, "%s: %s\n", iter->socket->slot_string,
2558 iter->socket->attached ? iter->socket->card_string :
2559 "Empty");
201a51fc
AZ		 2560}
2561
2ff89790 2562/***********************************************************/
3023f332
AL		 2563/* register display */
2564
7b5d76da
AL		 2565struct DisplayAllocator default_allocator = {
2566 defaultallocator_create_displaysurface,
2567 defaultallocator_resize_displaysurface,
2568 defaultallocator_free_displaysurface
2569};
2570
3023f332
AL		 2571void register_displaystate(DisplayState *ds)
2572{
2573 DisplayState **s;
2574 s = &display_state;
2575 while (*s != NULL)
2576 s = &(*s)->next;
2577 ds->next = NULL;
2578 *s = ds;
2579}
2580
2581DisplayState *get_displaystate(void)
2582{
2583 return display_state;
2584}
2585
7b5d76da
AL		 2586DisplayAllocator *register_displayallocator(DisplayState *ds, DisplayAllocator *da)
2587{
2588 if(ds->allocator == &default_allocator) ds->allocator = da;
2589 return ds->allocator;
2590}
2591
2ff89790
TS		 2592/* dumb display */
2593
8f391ab4 2594static void dumb_display_init(void)
2ff89790 2595{
8f391ab4 2596 DisplayState *ds = qemu_mallocz(sizeof(DisplayState));
7b5d76da
AL		 2597 ds->allocator = &default_allocator;
2598 ds->surface = qemu_create_displaysurface(ds, 640, 480);
8f391ab4 2599 register_displaystate(ds);
2ff89790
TS		 2600}
2601
8a7ddc38
FB		 2602/***********************************************************/
2603/* I/O handling */
0824d6fc 2604
c4b1fcc0
FB		 2605typedef struct IOHandlerRecord {
2606 int fd;
7c9d8e07
FB		 2607 IOCanRWHandler *fd_read_poll;
2608 IOHandler *fd_read;
2609 IOHandler *fd_write;
cafffd40 2610 int deleted;
c4b1fcc0
FB		 2611 void *opaque;
2612 /* temporary data */
2613 struct pollfd *ufd;
8a7ddc38 2614 struct IOHandlerRecord *next;
c4b1fcc0
FB		 2615} IOHandlerRecord;
2616
8a7ddc38 2617static IOHandlerRecord *first_io_handler;
c4b1fcc0 2618
7c9d8e07
FB		 2619/* XXX: fd_read_poll should be suppressed, but an API change is
2620 necessary in the character devices to suppress fd_can_read(). */
5fafdf24
TS		 2621int qemu_set_fd_handler2(int fd,
2622 IOCanRWHandler *fd_read_poll,
2623 IOHandler *fd_read,
2624 IOHandler *fd_write,
7c9d8e07 2625 void *opaque)
c4b1fcc0 2626{
7c9d8e07 2627 IOHandlerRecord **pioh, *ioh;
c4b1fcc0 2628
7c9d8e07
FB		 2629 if (!fd_read && !fd_write) {
2630 pioh = &first_io_handler;
2631 for(;;) {
2632 ioh = *pioh;
2633 if (ioh == NULL)
2634 break;
2635 if (ioh->fd == fd) {
cafffd40 2636 ioh->deleted = 1;
7c9d8e07
FB		 2637 break;
2638 }
2639 pioh = &ioh->next;
2640 }
2641 } else {
2642 for(ioh = first_io_handler; ioh != NULL; ioh = ioh->next) {
2643 if (ioh->fd == fd)
2644 goto found;
2645 }
2646 ioh = qemu_mallocz(sizeof(IOHandlerRecord));
7c9d8e07
FB		 2647 ioh->next = first_io_handler;
2648 first_io_handler = ioh;
2649 found:
2650 ioh->fd = fd;
2651 ioh->fd_read_poll = fd_read_poll;
2652 ioh->fd_read = fd_read;
2653 ioh->fd_write = fd_write;
2654 ioh->opaque = opaque;
cafffd40 2655 ioh->deleted = 0;
7c9d8e07 2656 }
c4b1fcc0
FB		 2657 return 0;
2658}
2659
5fafdf24
TS		 2660int qemu_set_fd_handler(int fd,
2661 IOHandler *fd_read,
2662 IOHandler *fd_write,
7c9d8e07 2663 void *opaque)
8a7ddc38 2664{
7c9d8e07 2665 return qemu_set_fd_handler2(fd, NULL, fd_read, fd_write, opaque);
8a7ddc38
FB		 2666}
2667
56f3a5d0 2668#ifdef _WIN32
f331110f
FB		 2669/***********************************************************/
2670/* Polling handling */
2671
2672typedef struct PollingEntry {
2673 PollingFunc *func;
2674 void *opaque;
2675 struct PollingEntry *next;
2676} PollingEntry;
2677
2678static PollingEntry *first_polling_entry;
2679
2680int qemu_add_polling_cb(PollingFunc *func, void *opaque)
2681{
2682 PollingEntry **ppe, *pe;
2683 pe = qemu_mallocz(sizeof(PollingEntry));
f331110f
FB		 2684 pe->func = func;
2685 pe->opaque = opaque;
2686 for(ppe = &first_polling_entry; *ppe != NULL; ppe = &(*ppe)->next);
2687 *ppe = pe;
2688 return 0;
2689}
2690
2691void qemu_del_polling_cb(PollingFunc *func, void *opaque)
2692{
2693 PollingEntry **ppe, *pe;
2694 for(ppe = &first_polling_entry; *ppe != NULL; ppe = &(*ppe)->next) {
2695 pe = *ppe;
2696 if (pe->func == func && pe->opaque == opaque) {
2697 *ppe = pe->next;
2698 qemu_free(pe);
2699 break;
2700 }
2701 }
2702}
2703
a18e524a
FB		 2704/***********************************************************/
2705/* Wait objects support */
2706typedef struct WaitObjects {
2707 int num;
2708 HANDLE events[MAXIMUM_WAIT_OBJECTS + 1];
2709 WaitObjectFunc *func[MAXIMUM_WAIT_OBJECTS + 1];
2710 void *opaque[MAXIMUM_WAIT_OBJECTS + 1];
2711} WaitObjects;
2712
2713static WaitObjects wait_objects = {0};
3b46e624 2714
a18e524a
FB		 2715int qemu_add_wait_object(HANDLE handle, WaitObjectFunc *func, void *opaque)
2716{
2717 WaitObjects *w = &wait_objects;
2718
2719 if (w->num >= MAXIMUM_WAIT_OBJECTS)
2720 return -1;
2721 w->events[w->num] = handle;
2722 w->func[w->num] = func;
2723 w->opaque[w->num] = opaque;
2724 w->num++;
2725 return 0;
2726}
2727
2728void qemu_del_wait_object(HANDLE handle, WaitObjectFunc *func, void *opaque)
2729{
2730 int i, found;
2731 WaitObjects *w = &wait_objects;
2732
2733 found = 0;
2734 for (i = 0; i < w->num; i++) {
2735 if (w->events[i] == handle)
2736 found = 1;
2737 if (found) {
2738 w->events[i] = w->events[i + 1];
2739 w->func[i] = w->func[i + 1];
2740 w->opaque[i] = w->opaque[i + 1];
3b46e624 2741 }
a18e524a
FB		 2742 }
2743 if (found)
2744 w->num--;
2745}
2746#endif
2747
8a7ddc38
FB		 2748/***********************************************************/
2749/* ram save/restore */
2750
94fb0909 2751#define RAM_SAVE_FLAG_FULL 0x01 /* Obsolete, not used anymore */
475e4277
AL		 2752#define RAM_SAVE_FLAG_COMPRESS 0x02
2753#define RAM_SAVE_FLAG_MEM_SIZE 0x04
2754#define RAM_SAVE_FLAG_PAGE 0x08
2755#define RAM_SAVE_FLAG_EOS 0x10
2756
2757static int is_dup_page(uint8_t *page, uint8_t ch)
8a7ddc38 2758{
475e4277
AL		 2759 uint32_t val = ch << 24 | ch << 16 | ch << 8 | ch;
2760 uint32_t *array = (uint32_t *)page;
2761 int i;
3b46e624 2762
475e4277
AL		 2763 for (i = 0; i < (TARGET_PAGE_SIZE / 4); i++) {
2764 if (array[i] != val)
2765 return 0;
2766 }
2767
2768 return 1;
2769}
2770
2771static int ram_save_block(QEMUFile *f)
2772{
c227f099
AL		 2773 static ram_addr_t current_addr = 0;
2774 ram_addr_t saved_addr = current_addr;
2775 ram_addr_t addr = 0;
475e4277
AL		 2776 int found = 0;
2777
94a6b54f 2778 while (addr < last_ram_offset) {
475e4277 2779 if (cpu_physical_memory_get_dirty(current_addr, MIGRATION_DIRTY_FLAG)) {
5579c7f3 2780 uint8_t *p;
475e4277
AL		 2781
2782 cpu_physical_memory_reset_dirty(current_addr,
2783 current_addr + TARGET_PAGE_SIZE,
2784 MIGRATION_DIRTY_FLAG);
2785
5579c7f3 2786 p = qemu_get_ram_ptr(current_addr);
475e4277 2787
5579c7f3 2788 if (is_dup_page(p, *p)) {
475e4277 2789 qemu_put_be64(f, current_addr | RAM_SAVE_FLAG_COMPRESS);
5579c7f3 2790 qemu_put_byte(f, *p);
475e4277
AL		 2791 } else {
2792 qemu_put_be64(f, current_addr | RAM_SAVE_FLAG_PAGE);
5579c7f3 2793 qemu_put_buffer(f, p, TARGET_PAGE_SIZE);
c88676f8 2794 }
475e4277
AL		 2795
2796 found = 1;
2797 break;
c88676f8 2798 }
475e4277 2799 addr += TARGET_PAGE_SIZE;
94a6b54f 2800 current_addr = (saved_addr + addr) % last_ram_offset;
8a7ddc38 2801 }
475e4277
AL		 2802
2803 return found;
8a7ddc38
FB		 2804}
2805
84307938 2806static uint64_t bytes_transferred;
475e4277 2807
c227f099 2808static ram_addr_t ram_save_remaining(void)
475e4277 2809{
c227f099
AL		 2810 ram_addr_t addr;
2811 ram_addr_t count = 0;
475e4277 2812
94a6b54f 2813 for (addr = 0; addr < last_ram_offset; addr += TARGET_PAGE_SIZE) {
475e4277
AL		 2814 if (cpu_physical_memory_get_dirty(addr, MIGRATION_DIRTY_FLAG))
2815 count++;
2816 }
2817
2818 return count;
2819}
2820
9f9e28cd
GC		 2821uint64_t ram_bytes_remaining(void)
2822{
2823 return ram_save_remaining() * TARGET_PAGE_SIZE;
2824}
2825
2826uint64_t ram_bytes_transferred(void)
2827{
2828 return bytes_transferred;
2829}
2830
2831uint64_t ram_bytes_total(void)
2832{
2833 return last_ram_offset;
2834}
2835
f327aa0c 2836static int ram_save_live(Monitor *mon, QEMUFile *f, int stage, void *opaque)
475e4277 2837{
c227f099 2838 ram_addr_t addr;
a0a3fd60
GC		 2839 uint64_t bytes_transferred_last;
2840 double bwidth = 0;
2841 uint64_t expected_time = 0;
475e4277 2842
4ec7fcc7
JK		 2843 if (stage < 0) {
2844 cpu_physical_memory_set_dirty_tracking(0);
2845 return 0;
2846 }
2847
9fa06385 2848 if (cpu_physical_sync_dirty_bitmap(0, TARGET_PHYS_ADDR_MAX) != 0) {
b0a46a33
JK		 2849 qemu_file_set_error(f);
2850 return 0;
2851 }
2852
475e4277 2853 if (stage == 1) {
84307938
JK		 2854 bytes_transferred = 0;
2855
475e4277 2856 /* Make sure all dirty bits are set */
94a6b54f 2857 for (addr = 0; addr < last_ram_offset; addr += TARGET_PAGE_SIZE) {
475e4277
AL		 2858 if (!cpu_physical_memory_get_dirty(addr, MIGRATION_DIRTY_FLAG))
2859 cpu_physical_memory_set_dirty(addr);
2860 }
b0a46a33 2861
475e4277
AL		 2862 /* Enable dirty memory tracking */
2863 cpu_physical_memory_set_dirty_tracking(1);
2864
94a6b54f 2865 qemu_put_be64(f, last_ram_offset | RAM_SAVE_FLAG_MEM_SIZE);
475e4277
AL		 2866 }
2867
a0a3fd60
GC		 2868 bytes_transferred_last = bytes_transferred;
2869 bwidth = get_clock();
2870
475e4277
AL		 2871 while (!qemu_file_rate_limit(f)) {
2872 int ret;
2873
2874 ret = ram_save_block(f);
9f9e28cd 2875 bytes_transferred += ret * TARGET_PAGE_SIZE;
475e4277
AL		 2876 if (ret == 0) /* no more blocks */
2877 break;
2878 }
2879
a0a3fd60
GC		 2880 bwidth = get_clock() - bwidth;
2881 bwidth = (bytes_transferred - bytes_transferred_last) / bwidth;
2882
2883 /* if we haven't transferred anything this round, force expected_time to a
2884 * a very high value, but without crashing */
2885 if (bwidth == 0)
2886 bwidth = 0.000001;
2887
475e4277 2888 /* try transferring iterative blocks of memory */
475e4277 2889 if (stage == 3) {
475e4277 2890 /* flush all remaining blocks regardless of rate limiting */
9f9e28cd
GC		 2891 while (ram_save_block(f) != 0) {
2892 bytes_transferred += TARGET_PAGE_SIZE;
2893 }
8215e914 2894 cpu_physical_memory_set_dirty_tracking(0);
475e4277
AL		 2895 }
2896
2897 qemu_put_be64(f, RAM_SAVE_FLAG_EOS);
2898
a0a3fd60
GC		 2899 expected_time = ram_save_remaining() * TARGET_PAGE_SIZE / bwidth;
2900
2901 return (stage == 2) && (expected_time <= migrate_max_downtime());
475e4277
AL		 2902}
2903
475e4277
AL		 2904static int ram_load(QEMUFile *f, void *opaque, int version_id)
2905{
c227f099 2906 ram_addr_t addr;
475e4277
AL		 2907 int flags;
2908
475e4277
AL		 2909 if (version_id != 3)
2910 return -EINVAL;
2911
2912 do {
2913 addr = qemu_get_be64(f);
2914
2915 flags = addr & ~TARGET_PAGE_MASK;
2916 addr &= TARGET_PAGE_MASK;
2917
2918 if (flags & RAM_SAVE_FLAG_MEM_SIZE) {
94a6b54f 2919 if (addr != last_ram_offset)
475e4277
AL		 2920 return -EINVAL;
2921 }
2922
475e4277
AL		 2923 if (flags & RAM_SAVE_FLAG_COMPRESS) {
2924 uint8_t ch = qemu_get_byte(f);
779c6bef
AL		 2925 memset(qemu_get_ram_ptr(addr), ch, TARGET_PAGE_SIZE);
2926#ifndef _WIN32
30868442
AL		 2927 if (ch == 0 &&
2928 (!kvm_enabled() || kvm_has_sync_mmu())) {
2929 madvise(qemu_get_ram_ptr(addr), TARGET_PAGE_SIZE, MADV_DONTNEED);
779c6bef 2930 }
30868442 2931#endif
9a743e5b 2932 } else if (flags & RAM_SAVE_FLAG_PAGE) {
5579c7f3 2933 qemu_get_buffer(f, qemu_get_ram_ptr(addr), TARGET_PAGE_SIZE);
9a743e5b
JK		 2934 }
2935 if (qemu_file_has_error(f)) {
2936 return -EIO;
2937 }
475e4277
AL		 2938 } while (!(flags & RAM_SAVE_FLAG_EOS));
2939
8a7ddc38
FB		 2940 return 0;
2941}
2942
9e472e10
AL		 2943void qemu_service_io(void)
2944{
d9f75a4e 2945 qemu_notify_event();
9e472e10
AL		 2946}
2947
cc1daa40
FB		 2948/***********************************************************/
2949/* machine registration */
2950
bdaf78e0 2951static QEMUMachine *first_machine = NULL;
6f338c34 2952QEMUMachine *current_machine = NULL;
cc1daa40
FB		 2953
2954int qemu_register_machine(QEMUMachine *m)
2955{
2956 QEMUMachine **pm;
2957 pm = &first_machine;
2958 while (*pm != NULL)
2959 pm = &(*pm)->next;
2960 m->next = NULL;
2961 *pm = m;
2962 return 0;
2963}
2964
9596ebb7 2965static QEMUMachine *find_machine(const char *name)
cc1daa40
FB		 2966{
2967 QEMUMachine *m;
2968
2969 for(m = first_machine; m != NULL; m = m->next) {
2970 if (!strcmp(m->name, name))
2971 return m;
3f6599e6
MM		 2972 if (m->alias && !strcmp(m->alias, name))
2973 return m;
cc1daa40
FB		 2974 }
2975 return NULL;
2976}
2977
0c257437
AL		 2978static QEMUMachine *find_default_machine(void)
2979{
2980 QEMUMachine *m;
2981
2982 for(m = first_machine; m != NULL; m = m->next) {
2983 if (m->is_default) {
2984 return m;
2985 }
2986 }
2987 return NULL;
2988}
2989
8a7ddc38
FB		 2990/***********************************************************/
2991/* main execution loop */
2992
9596ebb7 2993static void gui_update(void *opaque)
8a7ddc38 2994{
7d957bd8 2995 uint64_t interval = GUI_REFRESH_INTERVAL;
740733bb 2996 DisplayState *ds = opaque;
7d957bd8
AL		 2997 DisplayChangeListener *dcl = ds->listeners;
2998
62a2744c 2999 qemu_flush_coalesced_mmio_buffer();
7d957bd8
AL		 3000 dpy_refresh(ds);
3001
3002 while (dcl != NULL) {
3003 if (dcl->gui_timer_interval &&
3004 dcl->gui_timer_interval < interval)
3005 interval = dcl->gui_timer_interval;
3006 dcl = dcl->next;
3007 }
3008 qemu_mod_timer(ds->gui_timer, interval + qemu_get_clock(rt_clock));
8a7ddc38
FB		 3009}
3010
9043b62d
BS		 3011static void nographic_update(void *opaque)
3012{
3013 uint64_t interval = GUI_REFRESH_INTERVAL;
3014
62a2744c 3015 qemu_flush_coalesced_mmio_buffer();
9043b62d
BS		 3016 qemu_mod_timer(nographic_timer, interval + qemu_get_clock(rt_clock));
3017}
3018
0bd48850
FB		 3019struct vm_change_state_entry {
3020 VMChangeStateHandler *cb;
3021 void *opaque;
72cf2d4f 3022 QLIST_ENTRY (vm_change_state_entry) entries;
0bd48850
FB		 3023};
3024
72cf2d4f 3025static QLIST_HEAD(vm_change_state_head, vm_change_state_entry) vm_change_state_head;
0bd48850
FB		 3026
3027VMChangeStateEntry *qemu_add_vm_change_state_handler(VMChangeStateHandler *cb,
3028 void *opaque)
3029{
3030 VMChangeStateEntry *e;
3031
3032 e = qemu_mallocz(sizeof (*e));
0bd48850
FB		 3033
3034 e->cb = cb;
3035 e->opaque = opaque;
72cf2d4f 3036 QLIST_INSERT_HEAD(&vm_change_state_head, e, entries);
0bd48850
FB		 3037 return e;
3038}
3039
3040void qemu_del_vm_change_state_handler(VMChangeStateEntry *e)
3041{
72cf2d4f 3042 QLIST_REMOVE (e, entries);
0bd48850
FB		 3043 qemu_free (e);
3044}
3045
9781e040 3046static void vm_state_notify(int running, int reason)
0bd48850
FB		 3047{
3048 VMChangeStateEntry *e;
3049
3050 for (e = vm_change_state_head.lh_first; e; e = e->entries.le_next) {
9781e040 3051 e->cb(e->opaque, running, reason);
0bd48850
FB		 3052 }
3053}
3054
d6dc3d42
AL		 3055static void resume_all_vcpus(void);
3056static void pause_all_vcpus(void);
3057
8a7ddc38
FB		 3058void vm_start(void)
3059{
3060 if (!vm_running) {
3061 cpu_enable_ticks();
3062 vm_running = 1;
9781e040 3063 vm_state_notify(1, 0);
efe75411 3064 qemu_rearm_alarm_timer(alarm_timer);
d6dc3d42 3065 resume_all_vcpus();
8a7ddc38
FB		 3066 }
3067}
3068
bb0c6722
FB		 3069/* reset/shutdown handler */
3070
3071typedef struct QEMUResetEntry {
72cf2d4f 3072 QTAILQ_ENTRY(QEMUResetEntry) entry;
bb0c6722
FB		 3073 QEMUResetHandler *func;
3074 void *opaque;
bb0c6722
FB		 3075} QEMUResetEntry;
3076
72cf2d4f
BS		 3077static QTAILQ_HEAD(reset_handlers, QEMUResetEntry) reset_handlers =
3078 QTAILQ_HEAD_INITIALIZER(reset_handlers);
bb0c6722
FB		 3079static int reset_requested;
3080static int shutdown_requested;
3475187d 3081static int powerdown_requested;
e568902a 3082static int debug_requested;
6e29f5da 3083static int vmstop_requested;
bb0c6722 3084
cf7a2fe2
AJ		 3085int qemu_shutdown_requested(void)
3086{
3087 int r = shutdown_requested;
3088 shutdown_requested = 0;
3089 return r;
3090}
3091
3092int qemu_reset_requested(void)
3093{
3094 int r = reset_requested;
3095 reset_requested = 0;
3096 return r;
3097}
3098
3099int qemu_powerdown_requested(void)
3100{
3101 int r = powerdown_requested;
3102 powerdown_requested = 0;
3103 return r;
3104}
3105
e568902a
AL		 3106static int qemu_debug_requested(void)
3107{
3108 int r = debug_requested;
3109 debug_requested = 0;
3110 return r;
3111}
3112
6e29f5da
AL		 3113static int qemu_vmstop_requested(void)
3114{
3115 int r = vmstop_requested;
3116 vmstop_requested = 0;
3117 return r;
3118}
3119
3120static void do_vm_stop(int reason)
3121{
3122 if (vm_running) {
3123 cpu_disable_ticks();
3124 vm_running = 0;
d6dc3d42 3125 pause_all_vcpus();
6e29f5da
AL		 3126 vm_state_notify(0, reason);
3127 }
3128}
3129
a08d4367 3130void qemu_register_reset(QEMUResetHandler *func, void *opaque)
bb0c6722 3131{
55ddfe8e 3132 QEMUResetEntry *re = qemu_mallocz(sizeof(QEMUResetEntry));
bb0c6722 3133
bb0c6722
FB		 3134 re->func = func;
3135 re->opaque = opaque;
72cf2d4f 3136 QTAILQ_INSERT_TAIL(&reset_handlers, re, entry);
bb0c6722
FB		 3137}
3138
dda9b29f 3139void qemu_unregister_reset(QEMUResetHandler *func, void *opaque)
bb0c6722
FB		 3140{
3141 QEMUResetEntry *re;
3142
72cf2d4f 3143 QTAILQ_FOREACH(re, &reset_handlers, entry) {
dda9b29f 3144 if (re->func == func && re->opaque == opaque) {
72cf2d4f 3145 QTAILQ_REMOVE(&reset_handlers, re, entry);
dda9b29f
JK		 3146 qemu_free(re);
3147 return;
3148 }
3149 }
3150}
3151
3152void qemu_system_reset(void)
3153{
3154 QEMUResetEntry *re, *nre;
3155
3156 /* reset all devices */
72cf2d4f 3157 QTAILQ_FOREACH_SAFE(re, &reset_handlers, entry, nre) {
bb0c6722
FB		 3158 re->func(re->opaque);
3159 }
3160}
3161
3162void qemu_system_reset_request(void)
3163{
d1beab82
FB		 3164 if (no_reboot) {
3165 shutdown_requested = 1;
3166 } else {
3167 reset_requested = 1;
3168 }
d9f75a4e 3169 qemu_notify_event();
bb0c6722
FB		 3170}
3171
3172void qemu_system_shutdown_request(void)
3173{
3174 shutdown_requested = 1;
d9f75a4e 3175 qemu_notify_event();
bb0c6722
FB		 3176}
3177
3475187d
FB		 3178void qemu_system_powerdown_request(void)
3179{
3180 powerdown_requested = 1;
d9f75a4e
AL		 3181 qemu_notify_event();
3182}
3183
d6dc3d42
AL		 3184#ifdef CONFIG_IOTHREAD
3185static void qemu_system_vmstop_request(int reason)
d9f75a4e 3186{
d6dc3d42
AL		 3187 vmstop_requested = reason;
3188 qemu_notify_event();
bb0c6722 3189}
d6dc3d42 3190#endif
bb0c6722 3191
50317c7f
AL		 3192#ifndef _WIN32
3193static int io_thread_fd = -1;
3194
3195static void qemu_event_increment(void)
3fcf7b6b 3196{
50317c7f 3197 static const char byte = 0;
dc330e28 3198 ssize_t ret;
50317c7f
AL		 3199
3200 if (io_thread_fd == -1)
3201 return;
3202
dc330e28
KS		 3203 ret = write(io_thread_fd, &byte, sizeof(byte));
3204 if (ret < 0 && (errno != EINTR && errno != EAGAIN)) {
3205 fprintf(stderr, "qemu_event_increment: write() filed: %s\n",
3206 strerror(errno));
3207 exit (1);
3208 }
50317c7f
AL		 3209}
3210
3211static void qemu_event_read(void *opaque)
3212{
3213 int fd = (unsigned long)opaque;
3214 ssize_t len;
3215
3216 /* Drain the notify pipe */
3217 do {
3218 char buffer[512];
3219 len = read(fd, buffer, sizeof(buffer));
3220 } while ((len == -1 && errno == EINTR) || len > 0);
3221}
3222
3223static int qemu_event_init(void)
3224{
3225 int err;
3226 int fds[2];
3227
40ff6d7e 3228 err = qemu_pipe(fds);
50317c7f
AL		 3229 if (err == -1)
3230 return -errno;
3231
3232 err = fcntl_setfl(fds[0], O_NONBLOCK);
3233 if (err < 0)
3234 goto fail;
3235
3236 err = fcntl_setfl(fds[1], O_NONBLOCK);
3237 if (err < 0)
3238 goto fail;
3239
3240 qemu_set_fd_handler2(fds[0], NULL, qemu_event_read, NULL,
3241 (void *)(unsigned long)fds[0]);
3242
3243 io_thread_fd = fds[1];
a7e21219
JK		 3244 return 0;
3245
50317c7f
AL		 3246fail:
3247 close(fds[0]);
3248 close(fds[1]);
3249 return err;
3250}
3251#else
3252HANDLE qemu_event_handle;
3253
3254static void dummy_event_handler(void *opaque)
3255{
3256}
3257
3258static int qemu_event_init(void)
3259{
3260 qemu_event_handle = CreateEvent(NULL, FALSE, FALSE, NULL);
3261 if (!qemu_event_handle) {
20889d4e 3262 fprintf(stderr, "Failed CreateEvent: %ld\n", GetLastError());
50317c7f
AL		 3263 return -1;
3264 }
3265 qemu_add_wait_object(qemu_event_handle, dummy_event_handler, NULL);
3fcf7b6b
AL		 3266 return 0;
3267}
3268
50317c7f
AL		 3269static void qemu_event_increment(void)
3270{
de1c90cf 3271 if (!SetEvent(qemu_event_handle)) {
20889d4e 3272 fprintf(stderr, "qemu_event_increment: SetEvent failed: %ld\n",
de1c90cf 3273 GetLastError());
3274 exit (1);
3275 }
50317c7f
AL		 3276}
3277#endif
3278
d6dc3d42
AL		 3279static int cpu_can_run(CPUState *env)
3280{
3281 if (env->stop)
3282 return 0;
3283 if (env->stopped)
3284 return 0;
c5f32c99
MT		 3285 if (!vm_running)
3286 return 0;
d6dc3d42
AL		 3287 return 1;
3288}
3289
3290#ifndef CONFIG_IOTHREAD
50317c7f
AL		 3291static int qemu_init_main_loop(void)
3292{
3293 return qemu_event_init();
3294}
3295
0bf46a40
AL		 3296void qemu_init_vcpu(void *_env)
3297{
3298 CPUState *env = _env;
3299
dc6b1c09
AP		 3300 env->nr_cores = smp_cores;
3301 env->nr_threads = smp_threads;
3f7638ec
JD		 3302 if (kvm_enabled())
3303 kvm_init_vcpu(env);
0bf46a40
AL		 3304 return;
3305}
3306
8edac960
AL		 3307int qemu_cpu_self(void *env)
3308{
3309 return 1;
3310}
3311
d6dc3d42
AL		 3312static void resume_all_vcpus(void)
3313{
3314}
3315
3316static void pause_all_vcpus(void)
3317{
3318}
3319
8edac960
AL		 3320void qemu_cpu_kick(void *env)
3321{
3322 return;
3323}
3324
d6dc3d42
AL		 3325void qemu_notify_event(void)
3326{
3327 CPUState *env = cpu_single_env;
3328
3329 if (env) {
3330 cpu_exit(env);
4a1418e0 3331 }
d6dc3d42
AL		 3332}
3333
d549db5a
GC		 3334void qemu_mutex_lock_iothread(void) {}
3335void qemu_mutex_unlock_iothread(void) {}
4870852c 3336
6e29f5da
AL		 3337void vm_stop(int reason)
3338{
3339 do_vm_stop(reason);
3340}
3341
d6dc3d42
AL		 3342#else /* CONFIG_IOTHREAD */
3343
3344#include "qemu-thread.h"
3345
3346QemuMutex qemu_global_mutex;
3347static QemuMutex qemu_fair_mutex;
3348
3349static QemuThread io_thread;
3350
3351static QemuThread *tcg_cpu_thread;
3352static QemuCond *tcg_halt_cond;
3353
3354static int qemu_system_ready;
3355/* cpu creation */
3356static QemuCond qemu_cpu_cond;
3357/* system init */
3358static QemuCond qemu_system_cond;
3359static QemuCond qemu_pause_cond;
3360
3361static void block_io_signals(void);
3362static void unblock_io_signals(void);
3363static int tcg_has_work(void);
3364
3365static int qemu_init_main_loop(void)
3366{
3367 int ret;
3368
3369 ret = qemu_event_init();
3370 if (ret)
3371 return ret;
3372
3373 qemu_cond_init(&qemu_pause_cond);
3374 qemu_mutex_init(&qemu_fair_mutex);
3375 qemu_mutex_init(&qemu_global_mutex);
3376 qemu_mutex_lock(&qemu_global_mutex);
3377
3378 unblock_io_signals();
3379 qemu_thread_self(&io_thread);
3380
3381 return 0;
3382}
3383
3384static void qemu_wait_io_event(CPUState *env)
3385{
3386 while (!tcg_has_work())
3387 qemu_cond_timedwait(env->halt_cond, &qemu_global_mutex, 1000);
3388
3389 qemu_mutex_unlock(&qemu_global_mutex);
3390
3391 /*
3392 * Users of qemu_global_mutex can be starved, having no chance
3393 * to acquire it since this path will get to it first.
3394 * So use another lock to provide fairness.
3395 */
3396 qemu_mutex_lock(&qemu_fair_mutex);
3397 qemu_mutex_unlock(&qemu_fair_mutex);
3398
3399 qemu_mutex_lock(&qemu_global_mutex);
3400 if (env->stop) {
3401 env->stop = 0;
3402 env->stopped = 1;
3403 qemu_cond_signal(&qemu_pause_cond);
3404 }
3405}
3406
3407static int qemu_cpu_exec(CPUState *env);
3408
3409static void *kvm_cpu_thread_fn(void *arg)
3410{
3411 CPUState *env = arg;
3412
3413 block_io_signals();
3414 qemu_thread_self(env->thread);
321c1cb1
JCD		 3415 if (kvm_enabled())
3416 kvm_init_vcpu(env);
d6dc3d42
AL		 3417
3418 /* signal CPU creation */
3419 qemu_mutex_lock(&qemu_global_mutex);
3420 env->created = 1;
3421 qemu_cond_signal(&qemu_cpu_cond);
3422
3423 /* and wait for machine initialization */
3424 while (!qemu_system_ready)
3425 qemu_cond_timedwait(&qemu_system_cond, &qemu_global_mutex, 100);
3426
3427 while (1) {
3428 if (cpu_can_run(env))
3429 qemu_cpu_exec(env);
1c3173b9 3430 qemu_wait_io_event(env);
d6dc3d42
AL		 3431 }
3432
3433 return NULL;
3434}
3435
3436static void tcg_cpu_exec(void);
3437
3438static void *tcg_cpu_thread_fn(void *arg)
3439{
3440 CPUState *env = arg;
3441
3442 block_io_signals();
3443 qemu_thread_self(env->thread);
3444
3445 /* signal CPU creation */
3446 qemu_mutex_lock(&qemu_global_mutex);
3447 for (env = first_cpu; env != NULL; env = env->next_cpu)
3448 env->created = 1;
3449 qemu_cond_signal(&qemu_cpu_cond);
3450
3451 /* and wait for machine initialization */
3452 while (!qemu_system_ready)
3453 qemu_cond_timedwait(&qemu_system_cond, &qemu_global_mutex, 100);
3454
3455 while (1) {
3456 tcg_cpu_exec();
3457 qemu_wait_io_event(cur_cpu);
3458 }
3459
3460 return NULL;
3461}
3462
3463void qemu_cpu_kick(void *_env)
3464{
3465 CPUState *env = _env;
3466 qemu_cond_broadcast(env->halt_cond);
3467 if (kvm_enabled())
3468 qemu_thread_signal(env->thread, SIGUSR1);
3469}
3470
e5bc201d 3471int qemu_cpu_self(void *_env)
d6dc3d42 3472{
e5bc201d
GC		 3473 CPUState *env = _env;
3474 QemuThread this;
3475
3476 qemu_thread_self(&this);
3477
3478 return qemu_thread_equal(&this, env->thread);
d6dc3d42
AL		 3479}
3480
3481static void cpu_signal(int sig)
3482{
3483 if (cpu_single_env)
3484 cpu_exit(cpu_single_env);
3485}
3486
3487static void block_io_signals(void)
3488{
3489 sigset_t set;
3490 struct sigaction sigact;
3491
3492 sigemptyset(&set);
3493 sigaddset(&set, SIGUSR2);
3494 sigaddset(&set, SIGIO);
3495 sigaddset(&set, SIGALRM);
3496 pthread_sigmask(SIG_BLOCK, &set, NULL);
3497
3498 sigemptyset(&set);
3499 sigaddset(&set, SIGUSR1);
3500 pthread_sigmask(SIG_UNBLOCK, &set, NULL);
3501
3502 memset(&sigact, 0, sizeof(sigact));
3503 sigact.sa_handler = cpu_signal;
3504 sigaction(SIGUSR1, &sigact, NULL);
3505}
3506
3507static void unblock_io_signals(void)
3508{
3509 sigset_t set;
3510
3511 sigemptyset(&set);
3512 sigaddset(&set, SIGUSR2);
3513 sigaddset(&set, SIGIO);
3514 sigaddset(&set, SIGALRM);
3515 pthread_sigmask(SIG_UNBLOCK, &set, NULL);
3516
3517 sigemptyset(&set);
3518 sigaddset(&set, SIGUSR1);
3519 pthread_sigmask(SIG_BLOCK, &set, NULL);
3520}
3521
3522static void qemu_signal_lock(unsigned int msecs)
3523{
3524 qemu_mutex_lock(&qemu_fair_mutex);
3525
3526 while (qemu_mutex_trylock(&qemu_global_mutex)) {
3527 qemu_thread_signal(tcg_cpu_thread, SIGUSR1);
3528 if (!qemu_mutex_timedlock(&qemu_global_mutex, msecs))
3529 break;
3530 }
3531 qemu_mutex_unlock(&qemu_fair_mutex);
3532}
3533
d549db5a 3534void qemu_mutex_lock_iothread(void)
d6dc3d42
AL		 3535{
3536 if (kvm_enabled()) {
3537 qemu_mutex_lock(&qemu_fair_mutex);
3538 qemu_mutex_lock(&qemu_global_mutex);
3539 qemu_mutex_unlock(&qemu_fair_mutex);
3540 } else
3541 qemu_signal_lock(100);
3542}
3543
d549db5a 3544void qemu_mutex_unlock_iothread(void)
d6dc3d42
AL		 3545{
3546 qemu_mutex_unlock(&qemu_global_mutex);
3547}
3548
3549static int all_vcpus_paused(void)
3550{
3551 CPUState *penv = first_cpu;
3552
3553 while (penv) {
3554 if (!penv->stopped)
3555 return 0;
3556 penv = (CPUState *)penv->next_cpu;
3557 }
3558
3559 return 1;
3560}
3561
3562static void pause_all_vcpus(void)
3563{
3564 CPUState *penv = first_cpu;
3565
3566 while (penv) {
3567 penv->stop = 1;
3568 qemu_thread_signal(penv->thread, SIGUSR1);
3569 qemu_cpu_kick(penv);
3570 penv = (CPUState *)penv->next_cpu;
3571 }
3572
3573 while (!all_vcpus_paused()) {
3574 qemu_cond_timedwait(&qemu_pause_cond, &qemu_global_mutex, 100);
3575 penv = first_cpu;
3576 while (penv) {
3577 qemu_thread_signal(penv->thread, SIGUSR1);
3578 penv = (CPUState *)penv->next_cpu;
3579 }
3580 }
3581}
3582
3583static void resume_all_vcpus(void)
3584{
3585 CPUState *penv = first_cpu;
3586
3587 while (penv) {
3588 penv->stop = 0;
3589 penv->stopped = 0;
3590 qemu_thread_signal(penv->thread, SIGUSR1);
3591 qemu_cpu_kick(penv);
3592 penv = (CPUState *)penv->next_cpu;
3593 }
3594}
3595
3596static void tcg_init_vcpu(void *_env)
3597{
3598 CPUState *env = _env;
3599 /* share a single thread for all cpus with TCG */
3600 if (!tcg_cpu_thread) {
3601 env->thread = qemu_mallocz(sizeof(QemuThread));
3602 env->halt_cond = qemu_mallocz(sizeof(QemuCond));
3603 qemu_cond_init(env->halt_cond);
3604 qemu_thread_create(env->thread, tcg_cpu_thread_fn, env);
3605 while (env->created == 0)
3606 qemu_cond_timedwait(&qemu_cpu_cond, &qemu_global_mutex, 100);
3607 tcg_cpu_thread = env->thread;
3608 tcg_halt_cond = env->halt_cond;
3609 } else {
3610 env->thread = tcg_cpu_thread;
3611 env->halt_cond = tcg_halt_cond;
3612 }
3613}
3614
3615static void kvm_start_vcpu(CPUState *env)
3616{
d6dc3d42
AL		 3617 env->thread = qemu_mallocz(sizeof(QemuThread));
3618 env->halt_cond = qemu_mallocz(sizeof(QemuCond));
3619 qemu_cond_init(env->halt_cond);
3620 qemu_thread_create(env->thread, kvm_cpu_thread_fn, env);
3621 while (env->created == 0)
3622 qemu_cond_timedwait(&qemu_cpu_cond, &qemu_global_mutex, 100);
3623}
3624
3625void qemu_init_vcpu(void *_env)
3626{
3627 CPUState *env = _env;
3628
3f7638ec
JD		 3629 env->nr_cores = smp_cores;
3630 env->nr_threads = smp_threads;
d6dc3d42
AL		 3631 if (kvm_enabled())
3632 kvm_start_vcpu(env);
3633 else
3634 tcg_init_vcpu(env);
3635}
3636
3637void qemu_notify_event(void)
3638{
3639 qemu_event_increment();
3640}
3641
3642void vm_stop(int reason)
3643{
3644 QemuThread me;
3645 qemu_thread_self(&me);
3646
3647 if (!qemu_thread_equal(&me, &io_thread)) {
3648 qemu_system_vmstop_request(reason);
3649 /*
3650 * FIXME: should not return to device code in case
3651 * vm_stop() has been requested.
3652 */
3653 if (cpu_single_env) {
3654 cpu_exit(cpu_single_env);
3655 cpu_single_env->stop = 1;
3656 }
3657 return;
3658 }
3659 do_vm_stop(reason);
3660}
3661
3662#endif
3663
3664
877cf882 3665#ifdef _WIN32
69d6451c 3666static void host_main_loop_wait(int *timeout)
56f3a5d0
AL		 3667{
3668 int ret, ret2, i;
f331110f
FB		 3669 PollingEntry *pe;
3670
c4b1fcc0 3671
f331110f
FB		 3672 /* XXX: need to suppress polling by better using win32 events */
3673 ret = 0;
3674 for(pe = first_polling_entry; pe != NULL; pe = pe->next) {
3675 ret |= pe->func(pe->opaque);
3676 }
e6b1e558 3677 if (ret == 0) {
a18e524a
FB		 3678 int err;
3679 WaitObjects *w = &wait_objects;
3b46e624 3680
56f3a5d0 3681 ret = WaitForMultipleObjects(w->num, w->events, FALSE, *timeout);
a18e524a
FB		 3682 if (WAIT_OBJECT_0 + 0 <= ret && ret <= WAIT_OBJECT_0 + w->num - 1) {
3683 if (w->func[ret - WAIT_OBJECT_0])
3684 w->func[ret - WAIT_OBJECT_0](w->opaque[ret - WAIT_OBJECT_0]);
3b46e624 3685
5fafdf24 3686 /* Check for additional signaled events */
e6b1e558 3687 for(i = (ret - WAIT_OBJECT_0 + 1); i < w->num; i++) {
3b46e624 3688
e6b1e558
TS		 3689 /* Check if event is signaled */
3690 ret2 = WaitForSingleObject(w->events[i], 0);
3691 if(ret2 == WAIT_OBJECT_0) {
3692 if (w->func[i])
3693 w->func[i](w->opaque[i]);
3694 } else if (ret2 == WAIT_TIMEOUT) {
3695 } else {
3696 err = GetLastError();
3697 fprintf(stderr, "WaitForSingleObject error %d %d\n", i, err);
3b46e624
TS		 3698 }
3699 }
a18e524a
FB		 3700 } else if (ret == WAIT_TIMEOUT) {
3701 } else {
3702 err = GetLastError();
e6b1e558 3703 fprintf(stderr, "WaitForMultipleObjects error %d %d\n", ret, err);
a18e524a 3704 }
f331110f 3705 }
56f3a5d0
AL		 3706
3707 *timeout = 0;
3708}
3709#else
69d6451c 3710static void host_main_loop_wait(int *timeout)
56f3a5d0
AL		 3711{
3712}
fd1dff4b 3713#endif
56f3a5d0
AL		 3714
3715void main_loop_wait(int timeout)
3716{
3717 IOHandlerRecord *ioh;
3718 fd_set rfds, wfds, xfds;
3719 int ret, nfds;
3720 struct timeval tv;
3721
3722 qemu_bh_update_timeout(&timeout);
3723
3724 host_main_loop_wait(&timeout);
3725
fd1dff4b
FB		 3726 /* poll any events */
3727 /* XXX: separate device handlers from system ones */
6abfbd79 3728 nfds = -1;
fd1dff4b
FB		 3729 FD_ZERO(&rfds);
3730 FD_ZERO(&wfds);
e035649e 3731 FD_ZERO(&xfds);
fd1dff4b 3732 for(ioh = first_io_handler; ioh != NULL; ioh = ioh->next) {
cafffd40
TS		 3733 if (ioh->deleted)
3734 continue;
fd1dff4b
FB		 3735 if (ioh->fd_read &&
3736 (!ioh->fd_read_poll ||
3737 ioh->fd_read_poll(ioh->opaque) != 0)) {
3738 FD_SET(ioh->fd, &rfds);
3739 if (ioh->fd > nfds)
3740 nfds = ioh->fd;
3741 }
3742 if (ioh->fd_write) {
3743 FD_SET(ioh->fd, &wfds);
3744 if (ioh->fd > nfds)
3745 nfds = ioh->fd;
3746 }
3747 }
3b46e624 3748
56f3a5d0
AL		 3749 tv.tv_sec = timeout / 1000;
3750 tv.tv_usec = (timeout % 1000) * 1000;
3751
d918f23e
JK		 3752 slirp_select_fill(&nfds, &rfds, &wfds, &xfds);
3753
4870852c 3754 qemu_mutex_unlock_iothread();
e035649e 3755 ret = select(nfds + 1, &rfds, &wfds, &xfds, &tv);
4870852c 3756 qemu_mutex_lock_iothread();
fd1dff4b 3757 if (ret > 0) {
cafffd40
TS		 3758 IOHandlerRecord **pioh;
3759
3760 for(ioh = first_io_handler; ioh != NULL; ioh = ioh->next) {
6ab43fdc 3761 if (!ioh->deleted && ioh->fd_read && FD_ISSET(ioh->fd, &rfds)) {
fd1dff4b 3762 ioh->fd_read(ioh->opaque);
7c9d8e07 3763 }
6ab43fdc 3764 if (!ioh->deleted && ioh->fd_write && FD_ISSET(ioh->fd, &wfds)) {
fd1dff4b 3765 ioh->fd_write(ioh->opaque);
c4b1fcc0 3766 }
b4608c04 3767 }
cafffd40
TS		 3768
3769 /* remove deleted IO handlers */
3770 pioh = &first_io_handler;
3771 while (*pioh) {
3772 ioh = *pioh;
3773 if (ioh->deleted) {
3774 *pioh = ioh->next;
3775 qemu_free(ioh);
5fafdf24 3776 } else
cafffd40
TS		 3777 pioh = &ioh->next;
3778 }
fd1dff4b 3779 }
d918f23e
JK		 3780
3781 slirp_select_poll(&rfds, &wfds, &xfds, (ret < 0));
b4608c04 3782
50317c7f
AL		 3783 /* rearm timer, if not periodic */
3784 if (alarm_timer->flags & ALARM_FLAG_EXPIRED) {
3785 alarm_timer->flags &= ~ALARM_FLAG_EXPIRED;
3786 qemu_rearm_alarm_timer(alarm_timer);
3787 }
3788
357c692c 3789 /* vm time timers */
d6dc3d42
AL		 3790 if (vm_running) {
3791 if (!cur_cpu || likely(!(cur_cpu->singlestep_enabled & SSTEP_NOTIMER)))
0fdddf80
JK		 3792 qemu_run_timers(&active_timers[QEMU_CLOCK_VIRTUAL],
3793 qemu_get_clock(vm_clock));
d6dc3d42 3794 }
357c692c
AL		 3795
3796 /* real time timers */
0fdddf80 3797 qemu_run_timers(&active_timers[QEMU_CLOCK_REALTIME],
357c692c
AL		 3798 qemu_get_clock(rt_clock));
3799
21d5d12b
JK		 3800 qemu_run_timers(&active_timers[QEMU_CLOCK_HOST],
3801 qemu_get_clock(host_clock));
3802
423f0742
PB		 3803 /* Check bottom-halves last in case any of the earlier events triggered
3804 them. */
3805 qemu_bh_poll();
3b46e624 3806
5905b2e5
FB		 3807}
3808
43b96858 3809static int qemu_cpu_exec(CPUState *env)
5905b2e5 3810{
43b96858 3811 int ret;
89bfc105
FB		 3812#ifdef CONFIG_PROFILER
3813 int64_t ti;
3814#endif
5905b2e5 3815
89bfc105 3816#ifdef CONFIG_PROFILER
43b96858 3817 ti = profile_getclock();
89bfc105 3818#endif
43b96858
AL		 3819 if (use_icount) {
3820 int64_t count;
3821 int decr;
3822 qemu_icount -= (env->icount_decr.u16.low + env->icount_extra);
3823 env->icount_decr.u16.low = 0;
3824 env->icount_extra = 0;
3825 count = qemu_next_deadline();
3826 count = (count + (1 << icount_time_shift) - 1)
3827 >> icount_time_shift;
3828 qemu_icount += count;
3829 decr = (count > 0xffff) ? 0xffff : count;
3830 count -= decr;
3831 env->icount_decr.u16.low = decr;
3832 env->icount_extra = count;
3833 }
3834 ret = cpu_exec(env);
89bfc105 3835#ifdef CONFIG_PROFILER
43b96858 3836 qemu_time += profile_getclock() - ti;
89bfc105 3837#endif
43b96858
AL		 3838 if (use_icount) {
3839 /* Fold pending instructions back into the
3840 instruction counter, and clear the interrupt flag. */
3841 qemu_icount -= (env->icount_decr.u16.low
3842 + env->icount_extra);
3843 env->icount_decr.u32 = 0;
3844 env->icount_extra = 0;
3845 }
3846 return ret;
3847}
3848
e6e35b1e
AL		 3849static void tcg_cpu_exec(void)
3850{
d6dc3d42 3851 int ret = 0;
e6e35b1e
AL		 3852
3853 if (next_cpu == NULL)
3854 next_cpu = first_cpu;
3855 for (; next_cpu != NULL; next_cpu = next_cpu->next_cpu) {
3856 CPUState *env = cur_cpu = next_cpu;
3857
3858 if (!vm_running)
3859 break;
3860 if (timer_alarm_pending) {
3861 timer_alarm_pending = 0;
3862 break;
3863 }
d6dc3d42
AL		 3864 if (cpu_can_run(env))
3865 ret = qemu_cpu_exec(env);
e6e35b1e
AL		 3866 if (ret == EXCP_DEBUG) {
3867 gdb_set_stop_cpu(env);
3868 debug_requested = 1;
3869 break;
3870 }
3871 }
3872}
3873
43b96858
AL		 3874static int cpu_has_work(CPUState *env)
3875{
d6dc3d42
AL		 3876 if (env->stop)
3877 return 1;
3878 if (env->stopped)
3879 return 0;
43b96858
AL		 3880 if (!env->halted)
3881 return 1;
3882 if (qemu_cpu_has_work(env))
3883 return 1;
3884 return 0;
3885}
3886
3887static int tcg_has_work(void)
3888{
3889 CPUState *env;
3890
3891 for (env = first_cpu; env != NULL; env = env->next_cpu)
3892 if (cpu_has_work(env))
3893 return 1;
3894 return 0;
3895}
3896
3897static int qemu_calculate_timeout(void)
3898{
b319820d 3899#ifndef CONFIG_IOTHREAD
43b96858
AL		 3900 int timeout;
3901
3902 if (!vm_running)
3903 timeout = 5000;
3904 else if (tcg_has_work())
3905 timeout = 0;
3906 else if (!use_icount)
3907 timeout = 5000;
3908 else {
3909 /* XXX: use timeout computed from timers */
3910 int64_t add;
3911 int64_t delta;
3912 /* Advance virtual time to the next event. */
3913 if (use_icount == 1) {
3914 /* When not using an adaptive execution frequency
3915 we tend to get badly out of sync with real time,
3916 so just delay for a reasonable amount of time. */
3917 delta = 0;
3918 } else {
3919 delta = cpu_get_icount() - cpu_get_clock();
3920 }
3921 if (delta > 0) {
3922 /* If virtual time is ahead of real time then just
3923 wait for IO. */
3924 timeout = (delta / 1000000) + 1;
3925 } else {
3926 /* Wait for either IO to occur or the next
3927 timer event. */
3928 add = qemu_next_deadline();
3929 /* We advance the timer before checking for IO.
3930 Limit the amount we advance so that early IO
3931 activity won't get the guest too far ahead. */
3932 if (add > 10000000)
3933 add = 10000000;
3934 delta += add;
3935 add = (add + (1 << icount_time_shift) - 1)
3936 >> icount_time_shift;
3937 qemu_icount += add;
3938 timeout = delta / 1000000;
3939 if (timeout < 0)
3940 timeout = 0;
3941 }
3942 }
3943
3944 return timeout;
b319820d
LC		 3945#else /* CONFIG_IOTHREAD */
3946 return 1000;
3947#endif
43b96858
AL		 3948}
3949
3950static int vm_can_run(void)
3951{
3952 if (powerdown_requested)
3953 return 0;
3954 if (reset_requested)
3955 return 0;
3956 if (shutdown_requested)
3957 return 0;
e568902a
AL		 3958 if (debug_requested)
3959 return 0;
43b96858
AL		 3960 return 1;
3961}
3962
d9c32310
BS		 3963qemu_irq qemu_system_powerdown;
3964
43b96858
AL		 3965static void main_loop(void)
3966{
6e29f5da 3967 int r;
e6e35b1e 3968
d6dc3d42
AL		 3969#ifdef CONFIG_IOTHREAD
3970 qemu_system_ready = 1;
3971 qemu_cond_broadcast(&qemu_system_cond);
3972#endif
3973
6e29f5da 3974 for (;;) {
43b96858 3975 do {
e6e35b1e
AL		 3976#ifdef CONFIG_PROFILER
3977 int64_t ti;
3978#endif
d6dc3d42 3979#ifndef CONFIG_IOTHREAD
e6e35b1e 3980 tcg_cpu_exec();
d6dc3d42 3981#endif
89bfc105 3982#ifdef CONFIG_PROFILER
43b96858 3983 ti = profile_getclock();
89bfc105 3984#endif
43b96858 3985 main_loop_wait(qemu_calculate_timeout());
89bfc105 3986#ifdef CONFIG_PROFILER
43b96858 3987 dev_time += profile_getclock() - ti;
89bfc105 3988#endif
e568902a 3989 } while (vm_can_run());
43b96858 3990
b1a15e7e 3991 if (qemu_debug_requested()) {
242cd003 3992 monitor_protocol_event(QEVENT_DEBUG, NULL);
e568902a 3993 vm_stop(EXCP_DEBUG);
b1a15e7e 3994 }
43b96858 3995 if (qemu_shutdown_requested()) {
242cd003 3996 monitor_protocol_event(QEVENT_SHUTDOWN, NULL);
43b96858
AL		 3997 if (no_shutdown) {
3998 vm_stop(0);
3999 no_shutdown = 0;
4000 } else
4001 break;
4002 }
d6dc3d42 4003 if (qemu_reset_requested()) {
242cd003 4004 monitor_protocol_event(QEVENT_RESET, NULL);
d6dc3d42 4005 pause_all_vcpus();
43b96858 4006 qemu_system_reset();
d6dc3d42
AL		 4007 resume_all_vcpus();
4008 }
d9c32310 4009 if (qemu_powerdown_requested()) {
242cd003 4010 monitor_protocol_event(QEVENT_POWERDOWN, NULL);
d9c32310
BS		 4011 qemu_irq_raise(qemu_system_powerdown);
4012 }
b1a15e7e 4013 if ((r = qemu_vmstop_requested())) {
242cd003 4014 monitor_protocol_event(QEVENT_STOP, NULL);
6e29f5da 4015 vm_stop(r);
b1a15e7e 4016 }
b4608c04 4017 }
d6dc3d42 4018 pause_all_vcpus();
b4608c04
FB		 4019}
4020
9bd7e6d9
PB		 4021static void version(void)
4022{
4a19f1ec 4023 printf("QEMU PC emulator version " QEMU_VERSION QEMU_PKGVERSION ", Copyright (c) 2003-2008 Fabrice Bellard\n");
9bd7e6d9
PB		 4024}
4025
15f82208 4026static void help(int exitcode)
0824d6fc 4027{
e8105ebb 4028 const char *options_help =
5824d651
BS		 4029#define DEF(option, opt_arg, opt_enum, opt_help) \
4030 opt_help
4031#define DEFHEADING(text) stringify(text) "\n"
4032#include "qemu-options.h"
4033#undef DEF
4034#undef DEFHEADING
4035#undef GEN_DOCS
e8105ebb
PB		 4036 ;
4037 version();
4038 printf("usage: %s [options] [disk_image]\n"
4039 "\n"
4040 "'disk_image' is a raw hard image image for IDE hard disk 0\n"
3f020d70 4041 "\n"
e8105ebb 4042 "%s\n"
3f020d70 4043 "During emulation, the following keys are useful:\n"
4044 "ctrl-alt-f toggle full screen\n"
4045 "ctrl-alt-n switch to virtual console 'n'\n"
4046 "ctrl-alt toggle mouse and keyboard grab\n"
4047 "\n"
e8105ebb
PB		 4048 "When using -nographic, press 'ctrl-a h' to get some help.\n",
4049 "qemu",
4050 options_help);
15f82208 4051 exit(exitcode);
0824d6fc
FB		 4052}
4053
cd6f1169
FB		 4054#define HAS_ARG 0x0001
4055
4056enum {
5824d651
BS		 4057#define DEF(option, opt_arg, opt_enum, opt_help) \
4058 opt_enum,
4059#define DEFHEADING(text)
4060#include "qemu-options.h"
4061#undef DEF
4062#undef DEFHEADING
4063#undef GEN_DOCS
cd6f1169
FB		 4064};
4065
4066typedef struct QEMUOption {
4067 const char *name;
4068 int flags;
4069 int index;
4070} QEMUOption;
4071
dbed7e40 4072static const QEMUOption qemu_options[] = {
cd6f1169 4073 { "h", 0, QEMU_OPTION_h },
5824d651
BS		 4074#define DEF(option, opt_arg, opt_enum, opt_help) \
4075 { option, opt_arg, opt_enum },
4076#define DEFHEADING(text)
4077#include "qemu-options.h"
4078#undef DEF
4079#undef DEFHEADING
4080#undef GEN_DOCS
cd6f1169 4081 { NULL },
fc01f7e7
FB		 4082};
4083
1d14ffa9 4084#ifdef HAS_AUDIO
6a36d84e 4085struct soundhw soundhw[] = {
b00052e4 4086#ifdef HAS_AUDIO_CHOICE
4ce7ff6e 4087#if defined(TARGET_I386) || defined(TARGET_MIPS)
fd06c375
FB		 4088 {
4089 "pcspk",
4090 "PC speaker",
4091 0,
4092 1,
4093 { .init_isa = pcspk_audio_init }
4094 },
4095#endif
4c9b53e3 4096
4097#ifdef CONFIG_SB16
6a36d84e
FB		 4098 {
4099 "sb16",
4100 "Creative Sound Blaster 16",
4101 0,
4102 1,
4103 { .init_isa = SB16_init }
4104 },
4c9b53e3 4105#endif
6a36d84e 4106
cc53d26d 4107#ifdef CONFIG_CS4231A
4108 {
4109 "cs4231a",
4110 "CS4231A",
4111 0,
4112 1,
4113 { .init_isa = cs4231a_init }
4114 },
4115#endif
4116
1d14ffa9 4117#ifdef CONFIG_ADLIB
6a36d84e
FB		 4118 {
4119 "adlib",
1d14ffa9 4120#ifdef HAS_YMF262
6a36d84e 4121 "Yamaha YMF262 (OPL3)",
1d14ffa9 4122#else
6a36d84e 4123 "Yamaha YM3812 (OPL2)",
1d14ffa9 4124#endif
6a36d84e
FB		 4125 0,
4126 1,
4127 { .init_isa = Adlib_init }
4128 },
1d14ffa9 4129#endif
6a36d84e 4130
1d14ffa9 4131#ifdef CONFIG_GUS
6a36d84e
FB		 4132 {
4133 "gus",
4134 "Gravis Ultrasound GF1",
4135 0,
4136 1,
4137 { .init_isa = GUS_init }
4138 },
1d14ffa9 4139#endif
6a36d84e 4140
4c9b53e3 4141#ifdef CONFIG_AC97
e5c9a13e
AZ		 4142 {
4143 "ac97",
4144 "Intel 82801AA AC97 Audio",
4145 0,
4146 0,
4147 { .init_pci = ac97_init }
4148 },
4c9b53e3 4149#endif
e5c9a13e 4150
4c9b53e3 4151#ifdef CONFIG_ES1370
6a36d84e
FB		 4152 {
4153 "es1370",
4154 "ENSONIQ AudioPCI ES1370",
4155 0,
4156 0,
4157 { .init_pci = es1370_init }
4158 },
b00052e4 4159#endif
6a36d84e 4160
4c9b53e3 4161#endif /* HAS_AUDIO_CHOICE */
4162
6a36d84e
FB		 4163 { NULL, NULL, 0, 0, { NULL } }
4164};
4165
4166static void select_soundhw (const char *optarg)
4167{
4168 struct soundhw *c;
4169
4170 if (*optarg == '?') {
4171 show_valid_cards:
4172
4173 printf ("Valid sound card names (comma separated):\n");
4174 for (c = soundhw; c->name; ++c) {
4175 printf ("%-11s %s\n", c->name, c->descr);
4176 }
4177 printf ("\n-soundhw all will enable all of the above\n");
1d14ffa9
FB		 4178 exit (*optarg != '?');
4179 }
4180 else {
6a36d84e 4181 size_t l;
1d14ffa9
FB		 4182 const char *p;
4183 char *e;
4184 int bad_card = 0;
4185
6a36d84e
FB		 4186 if (!strcmp (optarg, "all")) {
4187 for (c = soundhw; c->name; ++c) {
4188 c->enabled = 1;
4189 }
4190 return;
4191 }
1d14ffa9 4192
6a36d84e 4193 p = optarg;
1d14ffa9
FB		 4194 while (*p) {
4195 e = strchr (p, ',');
4196 l = !e ? strlen (p) : (size_t) (e - p);
6a36d84e
FB		 4197
4198 for (c = soundhw; c->name; ++c) {
b3d6fb4a 4199 if (!strncmp (c->name, p, l) && !c->name[l]) {
6a36d84e 4200 c->enabled = 1;
1d14ffa9
FB		 4201 break;
4202 }
4203 }
6a36d84e
FB		 4204
4205 if (!c->name) {
1d14ffa9
FB		 4206 if (l > 80) {
4207 fprintf (stderr,
4208 "Unknown sound card name (too big to show)\n");
4209 }
4210 else {
4211 fprintf (stderr, "Unknown sound card name `%.*s'\n",
4212 (int) l, p);
4213 }
4214 bad_card = 1;
4215 }
4216 p += l + (e != NULL);
4217 }
4218
4219 if (bad_card)
4220 goto show_valid_cards;
4221 }
4222}
4223#endif
4224
3893c124 4225static void select_vgahw (const char *p)
4226{
4227 const char *opts;
4228
64465297 4229 default_vga = 0;
86176759 4230 vga_interface_type = VGA_NONE;
3893c124 4231 if (strstart(p, "std", &opts)) {
86176759 4232 vga_interface_type = VGA_STD;
3893c124 4233 } else if (strstart(p, "cirrus", &opts)) {
86176759 4234 vga_interface_type = VGA_CIRRUS;
3893c124 4235 } else if (strstart(p, "vmware", &opts)) {
86176759 4236 vga_interface_type = VGA_VMWARE;
94909d9f 4237 } else if (strstart(p, "xenfb", &opts)) {
86176759 4238 vga_interface_type = VGA_XENFB;
28b85ed8 4239 } else if (!strstart(p, "none", &opts)) {
3893c124 4240 invalid_vga:
4241 fprintf(stderr, "Unknown vga type: %s\n", p);
4242 exit(1);
4243 }
cb5a7aa8 4244 while (*opts) {
4245 const char *nextopt;
4246
4247 if (strstart(opts, ",retrace=", &nextopt)) {
4248 opts = nextopt;
4249 if (strstart(opts, "dumb", &nextopt))
4250 vga_retrace_method = VGA_RETRACE_DUMB;
4251 else if (strstart(opts, "precise", &nextopt))
4252 vga_retrace_method = VGA_RETRACE_PRECISE;
4253 else goto invalid_vga;
4254 } else goto invalid_vga;
4255 opts = nextopt;
4256 }
3893c124 4257}
4258
7d4c3d53
MA		 4259#ifdef TARGET_I386
4260static int balloon_parse(const char *arg)
4261{
382f0743 4262 QemuOpts *opts;
7d4c3d53 4263
382f0743
GH		 4264 if (strcmp(arg, "none") == 0) {
4265 return 0;
4266 }
4267
4268 if (!strncmp(arg, "virtio", 6)) {
4269 if (arg[6] == ',') {
4270 /* have params -> parse them */
4271 opts = qemu_opts_parse(&qemu_device_opts, arg+7, NULL);
4272 if (!opts)
4273 return -1;
4274 } else {
4275 /* create empty opts */
4276 opts = qemu_opts_create(&qemu_device_opts, NULL, 0);
7d4c3d53 4277 }
382f0743
GH		 4278 qemu_opt_set(opts, "driver", "virtio-balloon-pci");
4279 return 0;
7d4c3d53 4280 }
382f0743
GH		 4281
4282 return -1;
7d4c3d53
MA		 4283}
4284#endif
4285
3587d7e6
FB		 4286#ifdef _WIN32
4287static BOOL WINAPI qemu_ctrl_handler(DWORD type)
4288{
4289 exit(STATUS_CONTROL_C_EXIT);
4290 return TRUE;
4291}
4292#endif
4293
c4be29ff 4294int qemu_uuid_parse(const char *str, uint8_t *uuid)
8fcb1b90
BS		 4295{
4296 int ret;
4297
4298 if(strlen(str) != 36)
4299 return -1;
4300
4301 ret = sscanf(str, UUID_FMT, &uuid[0], &uuid[1], &uuid[2], &uuid[3],
4302 &uuid[4], &uuid[5], &uuid[6], &uuid[7], &uuid[8], &uuid[9],
4303 &uuid[10], &uuid[11], &uuid[12], &uuid[13], &uuid[14], &uuid[15]);
4304
4305 if(ret != 16)
4306 return -1;
4307
b6f6e3d3
AL		 4308#ifdef TARGET_I386
4309 smbios_add_field(1, offsetof(struct smbios_type_1, uuid), 16, uuid);
4310#endif
4311
8fcb1b90
BS		 4312 return 0;
4313}
4314
5b08fc10
AL		 4315#ifndef _WIN32
4316
4317static void termsig_handler(int signal)
4318{
4319 qemu_system_shutdown_request();
4320}
4321
7c3370d4
JK		 4322static void sigchld_handler(int signal)
4323{
4324 waitpid(-1, NULL, WNOHANG);
4325}
4326
4327static void sighandler_setup(void)
5b08fc10
AL		 4328{
4329 struct sigaction act;
4330
4331 memset(&act, 0, sizeof(act));
4332 act.sa_handler = termsig_handler;
4333 sigaction(SIGINT, &act, NULL);
4334 sigaction(SIGHUP, &act, NULL);
4335 sigaction(SIGTERM, &act, NULL);
7c3370d4
JK		 4336
4337 act.sa_handler = sigchld_handler;
4338 act.sa_flags = SA_NOCLDSTOP;
4339 sigaction(SIGCHLD, &act, NULL);
5b08fc10
AL		 4340}
4341
4342#endif
4343
5cea8590
PB		 4344#ifdef _WIN32
4345/* Look for support files in the same directory as the executable. */
4346static char *find_datadir(const char *argv0)
4347{
4348 char *p;
4349 char buf[MAX_PATH];
4350 DWORD len;
4351
4352 len = GetModuleFileName(NULL, buf, sizeof(buf) - 1);
4353 if (len == 0) {
c5947808 4354 return NULL;
5cea8590
PB		 4355 }
4356
4357 buf[len] = 0;
4358 p = buf + len - 1;
4359 while (p != buf && *p != '\\')
4360 p--;
4361 *p = 0;
4362 if (access(buf, R_OK) == 0) {
4363 return qemu_strdup(buf);
4364 }
4365 return NULL;
4366}
4367#else /* !_WIN32 */
4368
4369/* Find a likely location for support files using the location of the binary.
4370 For installed binaries this will be "$bindir/../share/qemu". When
4371 running from the build tree this will be "$bindir/../pc-bios". */
4372#define SHARE_SUFFIX "/share/qemu"
4373#define BUILD_SUFFIX "/pc-bios"
4374static char *find_datadir(const char *argv0)
4375{
4376 char *dir;
4377 char *p = NULL;
4378 char *res;
5cea8590 4379 char buf[PATH_MAX];
3a41759d 4380 size_t max_len;
5cea8590
PB		 4381
4382#if defined(__linux__)
4383 {
4384 int len;
4385 len = readlink("/proc/self/exe", buf, sizeof(buf) - 1);
4386 if (len > 0) {
4387 buf[len] = 0;
4388 p = buf;
4389 }
4390 }
4391#elif defined(__FreeBSD__)
4392 {
4393 int len;
4394 len = readlink("/proc/curproc/file", buf, sizeof(buf) - 1);
4395 if (len > 0) {
4396 buf[len] = 0;
4397 p = buf;
4398 }
4399 }
4400#endif
4401 /* If we don't have any way of figuring out the actual executable
4402 location then try argv[0]. */
4403 if (!p) {
4d224196 4404 p = realpath(argv0, buf);
5cea8590
PB		 4405 if (!p) {
4406 return NULL;
4407 }
4408 }
4409 dir = dirname(p);
4410 dir = dirname(dir);
4411
3a41759d
BS		 4412 max_len = strlen(dir) +
4413 MAX(strlen(SHARE_SUFFIX), strlen(BUILD_SUFFIX)) + 1;
4414 res = qemu_mallocz(max_len);
4415 snprintf(res, max_len, "%s%s", dir, SHARE_SUFFIX);
5cea8590 4416 if (access(res, R_OK)) {
3a41759d 4417 snprintf(res, max_len, "%s%s", dir, BUILD_SUFFIX);
5cea8590
PB		 4418 if (access(res, R_OK)) {
4419 qemu_free(res);
4420 res = NULL;
4421 }
4422 }
4d224196 4423
5cea8590
PB		 4424 return res;
4425}
4426#undef SHARE_SUFFIX
4427#undef BUILD_SUFFIX
4428#endif
4429
4430char *qemu_find_file(int type, const char *name)
4431{
4432 int len;
4433 const char *subdir;
4434 char *buf;
4435
4436 /* If name contains path separators then try it as a straight path. */
4437 if ((strchr(name, '/') || strchr(name, '\\'))
4438 && access(name, R_OK) == 0) {
73ffc805 4439 return qemu_strdup(name);
5cea8590
PB		 4440 }
4441 switch (type) {
4442 case QEMU_FILE_TYPE_BIOS:
4443 subdir = "";
4444 break;
4445 case QEMU_FILE_TYPE_KEYMAP:
4446 subdir = "keymaps/";
4447 break;
4448 default:
4449 abort();
4450 }
4451 len = strlen(data_dir) + strlen(name) + strlen(subdir) + 2;
4452 buf = qemu_mallocz(len);
3a41759d 4453 snprintf(buf, len, "%s/%s%s", data_dir, subdir, name);
5cea8590
PB		 4454 if (access(buf, R_OK)) {
4455 qemu_free(buf);
4456 return NULL;
4457 }
4458 return buf;
4459}
4460
ff952ba2
MA		 4461static int device_help_func(QemuOpts *opts, void *opaque)
4462{
4463 return qdev_device_help(opts);
4464}
4465
f31d07d1
GH		 4466static int device_init_func(QemuOpts *opts, void *opaque)
4467{
4468 DeviceState *dev;
4469
4470 dev = qdev_device_add(opts);
4471 if (!dev)
4472 return -1;
4473 return 0;
4474}
4475
1a688d3b
GH		 4476static int chardev_init_func(QemuOpts *opts, void *opaque)
4477{
4478 CharDriverState *chr;
4479
4480 chr = qemu_chr_open_opts(opts, NULL);
4481 if (!chr)
4482 return -1;
4483 return 0;
4484}
4485
88589343
GH		 4486static int mon_init_func(QemuOpts *opts, void *opaque)
4487{
4488 CharDriverState *chr;
4489 const char *chardev;
4490 const char *mode;
4491 int flags;
4492
4493 mode = qemu_opt_get(opts, "mode");
4494 if (mode == NULL) {
4495 mode = "readline";
4496 }
4497 if (strcmp(mode, "readline") == 0) {
4498 flags = MONITOR_USE_READLINE;
4499 } else if (strcmp(mode, "control") == 0) {
4500 flags = MONITOR_USE_CONTROL;
4501 } else {
4502 fprintf(stderr, "unknown monitor mode \"%s\"\n", mode);
4503 exit(1);
4504 }
4505
4506 if (qemu_opt_get_bool(opts, "default", 0))
4507 flags |= MONITOR_IS_DEFAULT;
4508
4509 chardev = qemu_opt_get(opts, "chardev");
4510 chr = qemu_chr_find(chardev);
4511 if (chr == NULL) {
4512 fprintf(stderr, "chardev \"%s\" not found\n", chardev);
4513 exit(1);
4514 }
4515
4516 monitor_init(chr, flags);
4517 return 0;
4518}
4519
6ca5582d 4520static void monitor_parse(const char *optarg, const char *mode)
88589343
GH		 4521{
4522 static int monitor_device_index = 0;
4523 QemuOpts *opts;
4524 const char *p;
4525 char label[32];
4526 int def = 0;
4527
4528 if (strstart(optarg, "chardev:", &p)) {
4529 snprintf(label, sizeof(label), "%s", p);
4530 } else {
4531 if (monitor_device_index) {
4532 snprintf(label, sizeof(label), "monitor%d",
4533 monitor_device_index);
4534 } else {
4535 snprintf(label, sizeof(label), "monitor");
4536 def = 1;
4537 }
4538 opts = qemu_chr_parse_compat(label, optarg);
4539 if (!opts) {
4540 fprintf(stderr, "parse error: %s\n", optarg);
4541 exit(1);
4542 }
4543 }
4544
4545 opts = qemu_opts_create(&qemu_mon_opts, label, 1);
4546 if (!opts) {
4547 fprintf(stderr, "duplicate chardev: %s\n", label);
4548 exit(1);
4549 }
6ca5582d 4550 qemu_opt_set(opts, "mode", mode);
88589343
GH		 4551 qemu_opt_set(opts, "chardev", label);
4552 if (def)
4553 qemu_opt_set(opts, "default", "on");
4554 monitor_device_index++;
4555}
4556
bd3c948d
GH		 4557struct device_config {
4558 enum {
aee1b935
GH		 4559 DEV_USB, /* -usbdevice */
4560 DEV_BT, /* -bt */
4561 DEV_SERIAL, /* -serial */
4562 DEV_PARALLEL, /* -parallel */
4563 DEV_VIRTCON, /* -virtioconsole */
c9f398e5 4564 DEV_DEBUGCON, /* -debugcon */
bd3c948d
GH		 4565 } type;
4566 const char *cmdline;
72cf2d4f 4567 QTAILQ_ENTRY(device_config) next;
bd3c948d 4568};
72cf2d4f 4569QTAILQ_HEAD(, device_config) device_configs = QTAILQ_HEAD_INITIALIZER(device_configs);
bd3c948d
GH		 4570
4571static void add_device_config(int type, const char *cmdline)
4572{
4573 struct device_config *conf;
4574
4575 conf = qemu_mallocz(sizeof(*conf));
4576 conf->type = type;
4577 conf->cmdline = cmdline;
72cf2d4f 4578 QTAILQ_INSERT_TAIL(&device_configs, conf, next);
bd3c948d
GH		 4579}
4580
4581static int foreach_device_config(int type, int (*func)(const char *cmdline))
4582{
4583 struct device_config *conf;
4584 int rc;
4585
72cf2d4f 4586 QTAILQ_FOREACH(conf, &device_configs, next) {
bd3c948d
GH		 4587 if (conf->type != type)
4588 continue;
4589 rc = func(conf->cmdline);
4590 if (0 != rc)
4591 return rc;
4592 }
4593 return 0;
4594}
4595
998bbd74
GH		 4596static int serial_parse(const char *devname)
4597{
4598 static int index = 0;
4599 char label[32];
4600
4601 if (strcmp(devname, "none") == 0)
4602 return 0;
4603 if (index == MAX_SERIAL_PORTS) {
4604 fprintf(stderr, "qemu: too many serial ports\n");
4605 exit(1);
4606 }
4607 snprintf(label, sizeof(label), "serial%d", index);
4608 serial_hds[index] = qemu_chr_open(label, devname, NULL);
4609 if (!serial_hds[index]) {
4610 fprintf(stderr, "qemu: could not open serial device '%s': %s\n",
4611 devname, strerror(errno));
4612 return -1;
4613 }
4614 index++;
4615 return 0;
4616}
4617
6a5e8b0e
GH		 4618static int parallel_parse(const char *devname)
4619{
4620 static int index = 0;
4621 char label[32];
4622
4623 if (strcmp(devname, "none") == 0)
4624 return 0;
4625 if (index == MAX_PARALLEL_PORTS) {
4626 fprintf(stderr, "qemu: too many parallel ports\n");
4627 exit(1);
4628 }
4629 snprintf(label, sizeof(label), "parallel%d", index);
4630 parallel_hds[index] = qemu_chr_open(label, devname, NULL);
4631 if (!parallel_hds[index]) {
4632 fprintf(stderr, "qemu: could not open parallel device '%s': %s\n",
4633 devname, strerror(errno));
4634 return -1;
4635 }
4636 index++;
4637 return 0;
4638}
4639
aee1b935
GH		 4640static int virtcon_parse(const char *devname)
4641{
4642 static int index = 0;
4643 char label[32];
392ecf54 4644 QemuOpts *bus_opts, *dev_opts;
aee1b935
GH		 4645
4646 if (strcmp(devname, "none") == 0)
4647 return 0;
4648 if (index == MAX_VIRTIO_CONSOLES) {
4649 fprintf(stderr, "qemu: too many virtio consoles\n");
4650 exit(1);
4651 }
392ecf54
AS		 4652
4653 bus_opts = qemu_opts_create(&qemu_device_opts, NULL, 0);
4654 qemu_opt_set(bus_opts, "driver", "virtio-serial");
4655
4656 dev_opts = qemu_opts_create(&qemu_device_opts, NULL, 0);
4657 qemu_opt_set(dev_opts, "driver", "virtconsole");
4658
aee1b935
GH		 4659 snprintf(label, sizeof(label), "virtcon%d", index);
4660 virtcon_hds[index] = qemu_chr_open(label, devname, NULL);
4661 if (!virtcon_hds[index]) {
4662 fprintf(stderr, "qemu: could not open virtio console '%s': %s\n",
4663 devname, strerror(errno));
4664 return -1;
4665 }
392ecf54
AS		 4666 qemu_opt_set(dev_opts, "chardev", label);
4667
aee1b935
GH		 4668 index++;
4669 return 0;
4670}
4671
c9f398e5
PA		 4672static int debugcon_parse(const char *devname)
4673{
4674 QemuOpts *opts;
4675
4676 if (!qemu_chr_open("debugcon", devname, NULL)) {
4677 exit(1);
4678 }
4679 opts = qemu_opts_create(&qemu_device_opts, "debugcon", 1);
4680 if (!opts) {
4681 fprintf(stderr, "qemu: already have a debugcon device\n");
4682 exit(1);
4683 }
4684 qemu_opt_set(opts, "driver", "isa-debugcon");
4685 qemu_opt_set(opts, "chardev", "debugcon");
4686 return 0;
4687}
4688
6530a97b
AL		 4689static const QEMUOption *lookup_opt(int argc, char **argv,
4690 const char **poptarg, int *poptind)
4691{
4692 const QEMUOption *popt;
4693 int optind = *poptind;
4694 char *r = argv[optind];
4695 const char *optarg;
4696
4697 optind++;
4698 /* Treat --foo the same as -foo. */
4699 if (r[1] == '-')
4700 r++;
4701 popt = qemu_options;
4702 for(;;) {
4703 if (!popt->name) {
4704 fprintf(stderr, "%s: invalid option -- '%s'\n",
4705 argv[0], r);
4706 exit(1);
4707 }
4708 if (!strcmp(popt->name, r + 1))
4709 break;
4710 popt++;
4711 }
4712 if (popt->flags & HAS_ARG) {
4713 if (optind >= argc) {
4714 fprintf(stderr, "%s: option '%s' requires an argument\n",
4715 argv[0], r);
4716 exit(1);
4717 }
4718 optarg = argv[optind++];
4719 } else {
4720 optarg = NULL;
4721 }
4722
4723 *poptarg = optarg;
4724 *poptind = optind;
4725
4726 return popt;
4727}
4728
902b3d5c 4729int main(int argc, char **argv, char **envp)
0824d6fc 4730{
59030a8c 4731 const char *gdbstub_dev = NULL;
28c5af54 4732 uint32_t boot_devices_bitmap = 0;
e4bcb14c 4733 int i;
28c5af54 4734 int snapshot, linux_boot, net_boot;
7f7f9873 4735 const char *initrd_filename;
a20dd508 4736 const char *kernel_filename, *kernel_cmdline;
195325a4 4737 char boot_devices[33] = "cad"; /* default to HD->floppy->CD-ROM */
3023f332 4738 DisplayState *ds;
7d957bd8 4739 DisplayChangeListener *dcl;
46d4767d 4740 int cyls, heads, secs, translation;
f31d07d1 4741 QemuOpts *hda_opts = NULL, *opts;
cd6f1169 4742 int optind;
6530a97b 4743 const char *optarg;
d63d307f 4744 const char *loadvm = NULL;
cc1daa40 4745 QEMUMachine *machine;
94fc95cd 4746 const char *cpu_model;
b9e82a59 4747#ifndef _WIN32
71e3ceb8 4748 int fds[2];
b9e82a59 4749#endif
26a5f13b 4750 int tb_size;
93815bc2 4751 const char *pid_file = NULL;
5bb7910a 4752 const char *incoming = NULL;
b9e82a59 4753#ifndef _WIN32
54042bcf
AL		 4754 int fd = 0;
4755 struct passwd *pwd = NULL;
0858532e
AL		 4756 const char *chroot_dir = NULL;
4757 const char *run_as = NULL;
b9e82a59 4758#endif
268a362c 4759 CPUState *env;
993fbfdb 4760 int show_vnc_port = 0;
292444cb 4761 int defconfig = 1;
0bd48850 4762
6875204c
JK		 4763 init_clocks();
4764
ac7531ec 4765 qemu_errors_to_file(stderr);
902b3d5c 4766 qemu_cache_utils_init(envp);
4767
72cf2d4f 4768 QLIST_INIT (&vm_change_state_head);
be995c27
FB		 4769#ifndef _WIN32
4770 {
4771 struct sigaction act;
4772 sigfillset(&act.sa_mask);
4773 act.sa_flags = 0;
4774 act.sa_handler = SIG_IGN;
4775 sigaction(SIGPIPE, &act, NULL);
4776 }
3587d7e6
FB		 4777#else
4778 SetConsoleCtrlHandler(qemu_ctrl_handler, TRUE);
a8e5ac33
FB		 4779 /* Note: cpu_interrupt() is currently not SMP safe, so we force
4780 QEMU to run on a single CPU */
4781 {
4782 HANDLE h;
4783 DWORD mask, smask;
4784 int i;
4785 h = GetCurrentProcess();
4786 if (GetProcessAffinityMask(h, &mask, &smask)) {
4787 for(i = 0; i < 32; i++) {
4788 if (mask & (1 << i))
4789 break;
4790 }
4791 if (i != 32) {
4792 mask = 1 << i;
4793 SetProcessAffinityMask(h, mask);
4794 }
4795 }
4796 }
67b915a5 4797#endif
be995c27 4798
f80f9ec9 4799 module_call_init(MODULE_INIT_MACHINE);
0c257437 4800 machine = find_default_machine();
94fc95cd 4801 cpu_model = NULL;
fc01f7e7 4802 initrd_filename = NULL;
4fc5d071 4803 ram_size = 0;
33e3963e 4804 snapshot = 0;
a20dd508
FB		 4805 kernel_filename = NULL;
4806 kernel_cmdline = "";
c4b1fcc0 4807 cyls = heads = secs = 0;
46d4767d 4808 translation = BIOS_ATA_TRANSLATION_AUTO;
c4b1fcc0 4809
268a362c
AL		 4810 for (i = 0; i < MAX_NODES; i++) {
4811 node_mem[i] = 0;
4812 node_cpumask[i] = 0;
4813 }
4814
268a362c 4815 nb_numa_nodes = 0;
7c9d8e07 4816 nb_nics = 0;
3b46e624 4817
26a5f13b 4818 tb_size = 0;
41bd639b
BS		 4819 autostart= 1;
4820
292444cb
AL		 4821 /* first pass of option parsing */
4822 optind = 1;
4823 while (optind < argc) {
4824 if (argv[optind][0] != '-') {
4825 /* disk image */
28e68d68 4826 optind++;
292444cb
AL		 4827 continue;
4828 } else {
4829 const QEMUOption *popt;
4830
4831 popt = lookup_opt(argc, argv, &optarg, &optind);
4832 switch (popt->index) {
4833 case QEMU_OPTION_nodefconfig:
4834 defconfig=0;
4835 break;
4836 }
4837 }
4838 }
4839
4840 if (defconfig) {
4841 FILE *fp;
4842 fp = fopen(CONFIG_QEMU_CONFDIR "/qemu.conf", "r");
4843 if (fp) {
4844 if (qemu_config_parse(fp) != 0) {
4845 exit(1);
4846 }
4847 fclose(fp);
4848 }
4849
4850 fp = fopen(CONFIG_QEMU_CONFDIR "/target-" TARGET_ARCH ".conf", "r");
4851 if (fp) {
4852 if (qemu_config_parse(fp) != 0) {
4853 exit(1);
4854 }
4855 fclose(fp);
4856 }
4857 }
4858
4859 /* second pass of option parsing */
cd6f1169 4860 optind = 1;
0824d6fc 4861 for(;;) {
cd6f1169 4862 if (optind >= argc)
0824d6fc 4863 break;
6530a97b 4864 if (argv[optind][0] != '-') {
9dfd7c7a 4865 hda_opts = drive_add(argv[optind++], HD_ALIAS, 0);
cd6f1169
FB		 4866 } else {
4867 const QEMUOption *popt;
4868
6530a97b 4869 popt = lookup_opt(argc, argv, &optarg, &optind);
cd6f1169 4870 switch(popt->index) {
cc1daa40
FB		 4871 case QEMU_OPTION_M:
4872 machine = find_machine(optarg);
4873 if (!machine) {
4874 QEMUMachine *m;
4875 printf("Supported machines are:\n");
4876 for(m = first_machine; m != NULL; m = m->next) {
3f6599e6
MM		 4877 if (m->alias)
4878 printf("%-10s %s (alias of %s)\n",
4879 m->alias, m->desc, m->name);
cc1daa40 4880 printf("%-10s %s%s\n",
5fafdf24 4881 m->name, m->desc,
0c257437 4882 m->is_default ? " (default)" : "");
cc1daa40 4883 }
15f82208 4884 exit(*optarg != '?');
cc1daa40
FB		 4885 }
4886 break;
94fc95cd
JM		 4887 case QEMU_OPTION_cpu:
4888 /* hw initialization will check this */
15f82208 4889 if (*optarg == '?') {
c732abe2
JM		 4890/* XXX: implement xxx_cpu_list for targets that still miss it */
4891#if defined(cpu_list)
4892 cpu_list(stdout, &fprintf);
94fc95cd 4893#endif
15f82208 4894 exit(0);
94fc95cd
JM		 4895 } else {
4896 cpu_model = optarg;
4897 }
4898 break;
cd6f1169 4899 case QEMU_OPTION_initrd:
fc01f7e7
FB		 4900 initrd_filename = optarg;
4901 break;
cd6f1169 4902 case QEMU_OPTION_hda:
e4bcb14c 4903 if (cyls == 0)
9dfd7c7a 4904 hda_opts = drive_add(optarg, HD_ALIAS, 0);
e4bcb14c 4905 else
9dfd7c7a 4906 hda_opts = drive_add(optarg, HD_ALIAS
e4bcb14c 4907 ",cyls=%d,heads=%d,secs=%d%s",
609497ab 4908 0, cyls, heads, secs,
e4bcb14c
TS		 4909 translation == BIOS_ATA_TRANSLATION_LBA ?
4910 ",trans=lba" :
4911 translation == BIOS_ATA_TRANSLATION_NONE ?
4912 ",trans=none" : "");
4913 break;
cd6f1169 4914 case QEMU_OPTION_hdb:
cc1daa40
FB		 4915 case QEMU_OPTION_hdc:
4916 case QEMU_OPTION_hdd:
609497ab 4917 drive_add(optarg, HD_ALIAS, popt->index - QEMU_OPTION_hda);
fc01f7e7 4918 break;
e4bcb14c 4919 case QEMU_OPTION_drive:
609497ab 4920 drive_add(NULL, "%s", optarg);
e4bcb14c 4921 break;
d058fe03
GH		 4922 case QEMU_OPTION_set:
4923 if (qemu_set_option(optarg) != 0)
4924 exit(1);
4925 break;
d0fef6fb
GH		 4926 case QEMU_OPTION_global:
4927 if (qemu_global_option(optarg) != 0)
4928 exit(1);
4929 break;
3e3d5815 4930 case QEMU_OPTION_mtdblock:
609497ab 4931 drive_add(optarg, MTD_ALIAS);
3e3d5815 4932 break;
a1bb27b1 4933 case QEMU_OPTION_sd:
609497ab 4934 drive_add(optarg, SD_ALIAS);
a1bb27b1 4935 break;
86f55663 4936 case QEMU_OPTION_pflash:
609497ab 4937 drive_add(optarg, PFLASH_ALIAS);
86f55663 4938 break;
cd6f1169 4939 case QEMU_OPTION_snapshot:
33e3963e
FB		 4940 snapshot = 1;
4941 break;
cd6f1169 4942 case QEMU_OPTION_hdachs:
330d0414 4943 {
330d0414
FB		 4944 const char *p;
4945 p = optarg;
4946 cyls = strtol(p, (char **)&p, 0);
46d4767d
FB		 4947 if (cyls < 1 || cyls > 16383)
4948 goto chs_fail;
330d0414
FB		 4949 if (*p != ',')
4950 goto chs_fail;
4951 p++;
4952 heads = strtol(p, (char **)&p, 0);
46d4767d
FB		 4953 if (heads < 1 || heads > 16)
4954 goto chs_fail;
330d0414
FB		 4955 if (*p != ',')
4956 goto chs_fail;
4957 p++;
4958 secs = strtol(p, (char **)&p, 0);
46d4767d
FB		 4959 if (secs < 1 || secs > 63)
4960 goto chs_fail;
4961 if (*p == ',') {
4962 p++;
4963 if (!strcmp(p, "none"))
4964 translation = BIOS_ATA_TRANSLATION_NONE;
4965 else if (!strcmp(p, "lba"))
4966 translation = BIOS_ATA_TRANSLATION_LBA;
4967 else if (!strcmp(p, "auto"))
4968 translation = BIOS_ATA_TRANSLATION_AUTO;
4969 else
4970 goto chs_fail;
4971 } else if (*p != '\0') {
c4b1fcc0 4972 chs_fail:
46d4767d
FB		 4973 fprintf(stderr, "qemu: invalid physical CHS format\n");
4974 exit(1);
c4b1fcc0 4975 }
9dfd7c7a
GH		 4976 if (hda_opts != NULL) {
4977 char num[16];
4978 snprintf(num, sizeof(num), "%d", cyls);
4979 qemu_opt_set(hda_opts, "cyls", num);
4980 snprintf(num, sizeof(num), "%d", heads);
4981 qemu_opt_set(hda_opts, "heads", num);
4982 snprintf(num, sizeof(num), "%d", secs);
4983 qemu_opt_set(hda_opts, "secs", num);
4984 if (translation == BIOS_ATA_TRANSLATION_LBA)
4985 qemu_opt_set(hda_opts, "trans", "lba");
4986 if (translation == BIOS_ATA_TRANSLATION_NONE)
4987 qemu_opt_set(hda_opts, "trans", "none");
4988 }
330d0414
FB		 4989 }
4990 break;
268a362c
AL		 4991 case QEMU_OPTION_numa:
4992 if (nb_numa_nodes >= MAX_NODES) {
4993 fprintf(stderr, "qemu: too many NUMA nodes\n");
4994 exit(1);
4995 }
4996 numa_add(optarg);
4997 break;
cd6f1169 4998 case QEMU_OPTION_nographic:
993fbfdb 4999 display_type = DT_NOGRAPHIC;
a20dd508 5000 break;
4d3b6f6e
AZ		 5001#ifdef CONFIG_CURSES
5002 case QEMU_OPTION_curses:
993fbfdb 5003 display_type = DT_CURSES;
4d3b6f6e
AZ		 5004 break;
5005#endif
a171fe39
AZ		 5006 case QEMU_OPTION_portrait:
5007 graphic_rotate = 1;
5008 break;
cd6f1169 5009 case QEMU_OPTION_kernel:
a20dd508
FB		 5010 kernel_filename = optarg;
5011 break;
cd6f1169 5012 case QEMU_OPTION_append:
a20dd508 5013 kernel_cmdline = optarg;
313aa567 5014 break;
cd6f1169 5015 case QEMU_OPTION_cdrom:
609497ab 5016 drive_add(optarg, CDROM_ALIAS);
36b486bb 5017 break;
cd6f1169 5018 case QEMU_OPTION_boot:
28c5af54 5019 {
ef3adf68 5020 static const char * const params[] = {
95387491 5021 "order", "once", "menu", NULL
ef3adf68
JK		 5022 };
5023 char buf[sizeof(boot_devices)];
e0f084bf 5024 char *standard_boot_devices;
ef3adf68
JK		 5025 int legacy = 0;
5026
5027 if (!strchr(optarg, '=')) {
5028 legacy = 1;
5029 pstrcpy(buf, sizeof(buf), optarg);
5030 } else if (check_params(buf, sizeof(buf), params, optarg) < 0) {
5031 fprintf(stderr,
5032 "qemu: unknown boot parameter '%s' in '%s'\n",
5033 buf, optarg);
5034 exit(1);
5035 }
5036
5037 if (legacy ||
5038 get_param_value(buf, sizeof(buf), "order", optarg)) {
5039 boot_devices_bitmap = parse_bootdevices(buf);
5040 pstrcpy(boot_devices, sizeof(boot_devices), buf);
28c5af54 5041 }
e0f084bf
JK		 5042 if (!legacy) {
5043 if (get_param_value(buf, sizeof(buf),
5044 "once", optarg)) {
5045 boot_devices_bitmap |= parse_bootdevices(buf);
5046 standard_boot_devices = qemu_strdup(boot_devices);
5047 pstrcpy(boot_devices, sizeof(boot_devices), buf);
5048 qemu_register_reset(restore_boot_devices,
5049 standard_boot_devices);
5050 }
95387491
JK		 5051 if (get_param_value(buf, sizeof(buf),
5052 "menu", optarg)) {
5053 if (!strcmp(buf, "on")) {
5054 boot_menu = 1;
5055 } else if (!strcmp(buf, "off")) {
5056 boot_menu = 0;
5057 } else {
5058 fprintf(stderr,
5059 "qemu: invalid option value '%s'\n",
5060 buf);
5061 exit(1);
5062 }
5063 }
e0f084bf 5064 }
36b486bb
FB		 5065 }
5066 break;
cd6f1169 5067 case QEMU_OPTION_fda:
cd6f1169 5068 case QEMU_OPTION_fdb:
609497ab 5069 drive_add(optarg, FD_ALIAS, popt->index - QEMU_OPTION_fda);
c45886db 5070 break;
52ca8d6a
FB		 5071#ifdef TARGET_I386
5072 case QEMU_OPTION_no_fd_bootchk:
5073 fd_bootchk = 0;
5074 break;
5075#endif
a1ea458f
MM		 5076 case QEMU_OPTION_netdev:
5077 if (net_client_parse(&qemu_netdev_opts, optarg) == -1) {
5078 exit(1);
5079 }
5080 break;
7c9d8e07 5081 case QEMU_OPTION_net:
7f161aae 5082 if (net_client_parse(&qemu_net_opts, optarg) == -1) {
c4b1fcc0
FB		 5083 exit(1);
5084 }
702c651c 5085 break;
c7f74643
FB		 5086#ifdef CONFIG_SLIRP
5087 case QEMU_OPTION_tftp:
ad196a9d 5088 legacy_tftp_prefix = optarg;
9bf05444 5089 break;
47d5d01a 5090 case QEMU_OPTION_bootp:
ad196a9d 5091 legacy_bootp_filename = optarg;
47d5d01a 5092 break;
c94c8d64 5093#ifndef _WIN32
9d728e8c 5094 case QEMU_OPTION_smb:
0752706d
MA		 5095 if (net_slirp_smb(optarg) < 0)
5096 exit(1);
9d728e8c 5097 break;
c94c8d64 5098#endif
9bf05444 5099 case QEMU_OPTION_redir:
0752706d
MA		 5100 if (net_slirp_redir(optarg) < 0)
5101 exit(1);
9bf05444 5102 break;
c7f74643 5103#endif
dc72ac14 5104 case QEMU_OPTION_bt:
bd3c948d 5105 add_device_config(DEV_BT, optarg);
dc72ac14 5106 break;
1d14ffa9 5107#ifdef HAS_AUDIO
1d14ffa9
FB		 5108 case QEMU_OPTION_audio_help:
5109 AUD_help ();
5110 exit (0);
5111 break;
5112 case QEMU_OPTION_soundhw:
5113 select_soundhw (optarg);
5114 break;
5115#endif
cd6f1169 5116 case QEMU_OPTION_h:
15f82208 5117 help(0);
cd6f1169 5118 break;
9bd7e6d9
PB		 5119 case QEMU_OPTION_version:
5120 version();
5121 exit(0);
5122 break;
00f82b8a
AJ		 5123 case QEMU_OPTION_m: {
5124 uint64_t value;
5125 char *ptr;
5126
5127 value = strtoul(optarg, &ptr, 10);
5128 switch (*ptr) {
5129 case 0: case 'M': case 'm':
5130 value <<= 20;
5131 break;
5132 case 'G': case 'g':
5133 value <<= 30;
5134 break;
5135 default:
5136 fprintf(stderr, "qemu: invalid ram size: %s\n", optarg);
cd6f1169
FB		 5137 exit(1);
5138 }
00f82b8a
AJ		 5139
5140 /* On 32-bit hosts, QEMU is limited by virtual address space */
4a1418e0 5141 if (value > (2047 << 20) && HOST_LONG_BITS == 32) {
00f82b8a
AJ		 5142 fprintf(stderr, "qemu: at most 2047 MB RAM can be simulated\n");
5143 exit(1);
5144 }
c227f099 5145 if (value != (uint64_t)(ram_addr_t)value) {
00f82b8a
AJ		 5146 fprintf(stderr, "qemu: ram size too large\n");
5147 exit(1);
5148 }
5149 ram_size = value;
cd6f1169 5150 break;
00f82b8a 5151 }
cd6f1169
FB		 5152 case QEMU_OPTION_d:
5153 {
5154 int mask;
c7cd6a37 5155 const CPULogItem *item;
3b46e624 5156
cd6f1169
FB		 5157 mask = cpu_str_to_log_mask(optarg);
5158 if (!mask) {
5159 printf("Log items (comma separated):\n");
f193c797
FB		 5160 for(item = cpu_log_items; item->mask != 0; item++) {
5161 printf("%-10s %s\n", item->name, item->help);
5162 }
5163 exit(1);
cd6f1169
FB		 5164 }
5165 cpu_set_log(mask);
f193c797 5166 }
cd6f1169 5167 break;
cd6f1169 5168 case QEMU_OPTION_s:
59030a8c 5169 gdbstub_dev = "tcp::" DEFAULT_GDBSTUB_PORT;
cd6f1169 5170 break;
59030a8c
AL		 5171 case QEMU_OPTION_gdb:
5172 gdbstub_dev = optarg;
cd6f1169 5173 break;
cd6f1169 5174 case QEMU_OPTION_L:
5cea8590 5175 data_dir = optarg;
cd6f1169 5176 break;
1192dad8
JM		 5177 case QEMU_OPTION_bios:
5178 bios_name = optarg;
5179 break;
1b530a6d
AJ		 5180 case QEMU_OPTION_singlestep:
5181 singlestep = 1;
5182 break;
cd6f1169 5183 case QEMU_OPTION_S:
3c07f8e8 5184 autostart = 0;
cd6f1169 5185 break;
3d11d0eb
FB		 5186 case QEMU_OPTION_k:
5187 keyboard_layout = optarg;
5188 break;
ee22c2f7
FB		 5189 case QEMU_OPTION_localtime:
5190 rtc_utc = 0;
5191 break;
3893c124 5192 case QEMU_OPTION_vga:
5193 select_vgahw (optarg);
1bfe856e 5194 break;
5824d651 5195#if defined(TARGET_PPC) || defined(TARGET_SPARC)
e9b137c2
FB		 5196 case QEMU_OPTION_g:
5197 {
5198 const char *p;
5199 int w, h, depth;
5200 p = optarg;
5201 w = strtol(p, (char **)&p, 10);
5202 if (w <= 0) {
5203 graphic_error:
5204 fprintf(stderr, "qemu: invalid resolution or depth\n");
5205 exit(1);
5206 }
5207 if (*p != 'x')
5208 goto graphic_error;
5209 p++;
5210 h = strtol(p, (char **)&p, 10);
5211 if (h <= 0)
5212 goto graphic_error;
5213 if (*p == 'x') {
5214 p++;
5215 depth = strtol(p, (char **)&p, 10);
5fafdf24 5216 if (depth != 8 && depth != 15 && depth != 16 &&
e9b137c2
FB		 5217 depth != 24 && depth != 32)
5218 goto graphic_error;
5219 } else if (*p == '\0') {
5220 depth = graphic_depth;
5221 } else {
5222 goto graphic_error;
5223 }
3b46e624 5224
e9b137c2
FB		 5225 graphic_width = w;
5226 graphic_height = h;
5227 graphic_depth = depth;
5228 }
5229 break;
5824d651 5230#endif
20d8a3ed
TS		 5231 case QEMU_OPTION_echr:
5232 {
5233 char *r;
5234 term_escape_char = strtol(optarg, &r, 0);
5235 if (r == optarg)
5236 printf("Bad argument to echr\n");
5237 break;
5238 }
82c643ff 5239 case QEMU_OPTION_monitor:
6ca5582d
GH		 5240 monitor_parse(optarg, "readline");
5241 default_monitor = 0;
5242 break;
5243 case QEMU_OPTION_qmp:
5244 monitor_parse(optarg, "control");
abdeed06 5245 default_monitor = 0;
82c643ff 5246 break;
22a0e04b
GH		 5247 case QEMU_OPTION_mon:
5248 opts = qemu_opts_parse(&qemu_mon_opts, optarg, "chardev");
5249 if (!opts) {
5250 fprintf(stderr, "parse error: %s\n", optarg);
5251 exit(1);
5252 }
5253 default_monitor = 0;
5254 break;
191bc01b
GH		 5255 case QEMU_OPTION_chardev:
5256 opts = qemu_opts_parse(&qemu_chardev_opts, optarg, "backend");
5257 if (!opts) {
5258 fprintf(stderr, "parse error: %s\n", optarg);
5259 exit(1);
5260 }
191bc01b 5261 break;
82c643ff 5262 case QEMU_OPTION_serial:
998bbd74
GH		 5263 add_device_config(DEV_SERIAL, optarg);
5264 default_serial = 0;
82c643ff 5265 break;
9dd986cc 5266 case QEMU_OPTION_watchdog:
09aaa160
MA		 5267 if (watchdog) {
5268 fprintf(stderr,
5269 "qemu: only one watchdog option may be given\n");
5270 return 1;
5271 }
5272 watchdog = optarg;
9dd986cc
RJ		 5273 break;
5274 case QEMU_OPTION_watchdog_action:
5275 if (select_watchdog_action(optarg) == -1) {
5276 fprintf(stderr, "Unknown -watchdog-action parameter\n");
5277 exit(1);
5278 }
5279 break;
51ecf136 5280 case QEMU_OPTION_virtiocon:
aee1b935
GH		 5281 add_device_config(DEV_VIRTCON, optarg);
5282 default_virtcon = 0;
51ecf136 5283 break;
6508fe59 5284 case QEMU_OPTION_parallel:
6a5e8b0e
GH		 5285 add_device_config(DEV_PARALLEL, optarg);
5286 default_parallel = 0;
6508fe59 5287 break;
c9f398e5
PA		 5288 case QEMU_OPTION_debugcon:
5289 add_device_config(DEV_DEBUGCON, optarg);
5290 break;
d63d307f
FB		 5291 case QEMU_OPTION_loadvm:
5292 loadvm = optarg;
5293 break;
5294 case QEMU_OPTION_full_screen:
5295 full_screen = 1;
5296 break;
667accab 5297#ifdef CONFIG_SDL
43523e93
TS		 5298 case QEMU_OPTION_no_frame:
5299 no_frame = 1;
5300 break;
3780e197
TS		 5301 case QEMU_OPTION_alt_grab:
5302 alt_grab = 1;
5303 break;
0ca9f8a4
DK		 5304 case QEMU_OPTION_ctrl_grab:
5305 ctrl_grab = 1;
5306 break;
667accab
TS		 5307 case QEMU_OPTION_no_quit:
5308 no_quit = 1;
5309 break;
7d957bd8 5310 case QEMU_OPTION_sdl:
993fbfdb 5311 display_type = DT_SDL;
7d957bd8 5312 break;
667accab 5313#endif
f7cce898 5314 case QEMU_OPTION_pidfile:
93815bc2 5315 pid_file = optarg;
f7cce898 5316 break;
a09db21f
FB		 5317#ifdef TARGET_I386
5318 case QEMU_OPTION_win2k_hack:
5319 win2k_install_hack = 1;
5320 break;
73822ec8
AL		 5321 case QEMU_OPTION_rtc_td_hack:
5322 rtc_td_hack = 1;
5323 break;
8a92ea2f
AL		 5324 case QEMU_OPTION_acpitable:
5325 if(acpi_table_add(optarg) < 0) {
5326 fprintf(stderr, "Wrong acpi table provided\n");
5327 exit(1);
5328 }
5329 break;
b6f6e3d3
AL		 5330 case QEMU_OPTION_smbios:
5331 if(smbios_entry_add(optarg) < 0) {
5332 fprintf(stderr, "Wrong smbios provided\n");
5333 exit(1);
5334 }
5335 break;
a09db21f 5336#endif
7ba1e619
AL		 5337#ifdef CONFIG_KVM
5338 case QEMU_OPTION_enable_kvm:
5339 kvm_allowed = 1;
7ba1e619 5340 break;
d993e026 5341#endif
bb36d470
FB		 5342 case QEMU_OPTION_usb:
5343 usb_enabled = 1;
5344 break;
a594cfbf
FB		 5345 case QEMU_OPTION_usbdevice:
5346 usb_enabled = 1;
bd3c948d
GH		 5347 add_device_config(DEV_USB, optarg);
5348 break;
5349 case QEMU_OPTION_device:
b386becf 5350 if (!qemu_opts_parse(&qemu_device_opts, optarg, "driver")) {
f31d07d1
GH		 5351 exit(1);
5352 }
a594cfbf 5353 break;
6a00d601 5354 case QEMU_OPTION_smp:
dc6b1c09 5355 smp_parse(optarg);
b2097003 5356 if (smp_cpus < 1) {
6a00d601
FB		 5357 fprintf(stderr, "Invalid number of CPUs\n");
5358 exit(1);
5359 }
6be68d7e
JS		 5360 if (max_cpus < smp_cpus) {
5361 fprintf(stderr, "maxcpus must be equal to or greater than "
5362 "smp\n");
5363 exit(1);
5364 }
5365 if (max_cpus > 255) {
5366 fprintf(stderr, "Unsupported number of maxcpus\n");
5367 exit(1);
5368 }
6a00d601 5369 break;
24236869 5370 case QEMU_OPTION_vnc:
993fbfdb 5371 display_type = DT_VNC;
73fc9742 5372 vnc_display = optarg;
24236869 5373 break;
5824d651 5374#ifdef TARGET_I386
6515b203
FB		 5375 case QEMU_OPTION_no_acpi:
5376 acpi_enabled = 0;
5377 break;
16b29ae1
AL		 5378 case QEMU_OPTION_no_hpet:
5379 no_hpet = 1;
5380 break;
7d4c3d53
MA		 5381 case QEMU_OPTION_balloon:
5382 if (balloon_parse(optarg) < 0) {
5383 fprintf(stderr, "Unknown -balloon argument %s\n", optarg);
5384 exit(1);
5385 }
df97b920 5386 break;
5824d651 5387#endif
d1beab82
FB		 5388 case QEMU_OPTION_no_reboot:
5389 no_reboot = 1;
5390 break;
b2f76161
AJ		 5391 case QEMU_OPTION_no_shutdown:
5392 no_shutdown = 1;
5393 break;
9467cd46
AZ		 5394 case QEMU_OPTION_show_cursor:
5395 cursor_hide = 0;
5396 break;
8fcb1b90
BS		 5397 case QEMU_OPTION_uuid:
5398 if(qemu_uuid_parse(optarg, qemu_uuid) < 0) {
5399 fprintf(stderr, "Fail to parse UUID string."
5400 " Wrong format.\n");
5401 exit(1);
5402 }
5403 break;
5824d651 5404#ifndef _WIN32
71e3ceb8
TS		 5405 case QEMU_OPTION_daemonize:
5406 daemonize = 1;
5407 break;
5824d651 5408#endif
9ae02555
TS		 5409 case QEMU_OPTION_option_rom:
5410 if (nb_option_roms >= MAX_OPTION_ROMS) {
5411 fprintf(stderr, "Too many option ROMs\n");
5412 exit(1);
5413 }
5414 option_rom[nb_option_roms] = optarg;
5415 nb_option_roms++;
5416 break;
5824d651 5417#if defined(TARGET_ARM) || defined(TARGET_M68K)
8e71621f
PB		 5418 case QEMU_OPTION_semihosting:
5419 semihosting_enabled = 1;
5420 break;
5824d651 5421#endif
c35734b2 5422 case QEMU_OPTION_name:
1889465a
AK		 5423 qemu_name = qemu_strdup(optarg);
5424 {
5425 char *p = strchr(qemu_name, ',');
5426 if (p != NULL) {
5427 *p++ = 0;
5428 if (strncmp(p, "process=", 8)) {
5429 fprintf(stderr, "Unknown subargument %s to -name", p);
5430 exit(1);
5431 }
5432 p += 8;
5433 set_proc_name(p);
5434 }
5435 }
c35734b2 5436 break;
95efd11c 5437#if defined(TARGET_SPARC) || defined(TARGET_PPC)
66508601
BS		 5438 case QEMU_OPTION_prom_env:
5439 if (nb_prom_envs >= MAX_PROM_ENVS) {
5440 fprintf(stderr, "Too many prom variables\n");
5441 exit(1);
5442 }
5443 prom_envs[nb_prom_envs] = optarg;
5444 nb_prom_envs++;
5445 break;
2b8f2d41
AZ		 5446#endif
5447#ifdef TARGET_ARM
5448 case QEMU_OPTION_old_param:
5449 old_param = 1;
05ebd537 5450 break;
66508601 5451#endif
f3dcfada
TS		 5452 case QEMU_OPTION_clock:
5453 configure_alarms(optarg);
5454 break;
7e0af5d0 5455 case QEMU_OPTION_startdate:
1ed2fc1f
JK		 5456 configure_rtc_date_offset(optarg, 1);
5457 break;
5458 case QEMU_OPTION_rtc:
5459 opts = qemu_opts_parse(&qemu_rtc_opts, optarg, NULL);
5460 if (!opts) {
5461 fprintf(stderr, "parse error: %s\n", optarg);
5462 exit(1);
7e0af5d0 5463 }
1ed2fc1f 5464 configure_rtc(opts);
7e0af5d0 5465 break;
26a5f13b
FB		 5466 case QEMU_OPTION_tb_size:
5467 tb_size = strtol(optarg, NULL, 0);
5468 if (tb_size < 0)
5469 tb_size = 0;
5470 break;
2e70f6ef
PB		 5471 case QEMU_OPTION_icount:
5472 use_icount = 1;
5473 if (strcmp(optarg, "auto") == 0) {
5474 icount_time_shift = -1;
5475 } else {
5476 icount_time_shift = strtol(optarg, NULL, 0);
5477 }
5478 break;
5bb7910a
AL		 5479 case QEMU_OPTION_incoming:
5480 incoming = optarg;
5481 break;
d8c208dd
GH		 5482 case QEMU_OPTION_nodefaults:
5483 default_serial = 0;
5484 default_parallel = 0;
aee1b935 5485 default_virtcon = 0;
d8c208dd
GH		 5486 default_monitor = 0;
5487 default_vga = 0;
cb4522cc 5488 default_net = 0;
ac33f8fa
GH		 5489 default_floppy = 0;
5490 default_cdrom = 0;
5491 default_sdcard = 0;
d8c208dd 5492 break;
5824d651 5493#ifndef _WIN32
0858532e
AL		 5494 case QEMU_OPTION_chroot:
5495 chroot_dir = optarg;
5496 break;
5497 case QEMU_OPTION_runas:
5498 run_as = optarg;
5499 break;
e37630ca
AL		 5500#endif
5501#ifdef CONFIG_XEN
5502 case QEMU_OPTION_xen_domid:
5503 xen_domid = atoi(optarg);
5504 break;
5505 case QEMU_OPTION_xen_create:
5506 xen_mode = XEN_CREATE;
5507 break;
5508 case QEMU_OPTION_xen_attach:
5509 xen_mode = XEN_ATTACH;
5510 break;
5824d651 5511#endif
715a664a
GH		 5512 case QEMU_OPTION_readconfig:
5513 {
5514 FILE *fp;
5515 fp = fopen(optarg, "r");
5516 if (fp == NULL) {
5517 fprintf(stderr, "open %s: %s\n", optarg, strerror(errno));
5518 exit(1);
5519 }
5520 if (qemu_config_parse(fp) != 0) {
5521 exit(1);
5522 }
5523 fclose(fp);
5524 break;
5525 }
5526 case QEMU_OPTION_writeconfig:
5527 {
5528 FILE *fp;
5529 if (strcmp(optarg, "-") == 0) {
5530 fp = stdout;
5531 } else {
5532 fp = fopen(optarg, "w");
5533 if (fp == NULL) {
5534 fprintf(stderr, "open %s: %s\n", optarg, strerror(errno));
5535 exit(1);
5536 }
5537 }
5538 qemu_config_write(fp);
5539 fclose(fp);
5540 break;
5541 }
cd6f1169 5542 }
0824d6fc
FB		 5543 }
5544 }
330d0414 5545
5cea8590
PB		 5546 /* If no data_dir is specified then try to find it relative to the
5547 executable path. */
5548 if (!data_dir) {
5549 data_dir = find_datadir(argv[0]);
5550 }
5551 /* If all else fails use the install patch specified when building. */
5552 if (!data_dir) {
5553 data_dir = CONFIG_QEMU_SHAREDIR;
5554 }
5555
6be68d7e
JS		 5556 /*
5557 * Default to max_cpus = smp_cpus, in case the user doesn't
5558 * specify a max_cpus value.
5559 */
5560 if (!max_cpus)
5561 max_cpus = smp_cpus;
5562
3d878caa 5563 machine->max_cpus = machine->max_cpus ?: 1; /* Default to UP */
b2097003
AL		 5564 if (smp_cpus > machine->max_cpus) {
5565 fprintf(stderr, "Number of SMP cpus requested (%d), exceeds max cpus "
5566 "supported by machine `%s' (%d)\n", smp_cpus, machine->name,
5567 machine->max_cpus);
5568 exit(1);
5569 }
5570
998bbd74 5571 qemu_opts_foreach(&qemu_device_opts, default_driver_check, NULL, 0);
d8bcbabf 5572 qemu_opts_foreach(&qemu_global_opts, default_driver_check, NULL, 0);
998bbd74 5573
986c5f78
GH		 5574 if (machine->no_serial) {
5575 default_serial = 0;
5576 }
5577 if (machine->no_parallel) {
5578 default_parallel = 0;
5579 }
5580 if (!machine->use_virtcon) {
5581 default_virtcon = 0;
5582 }
5583 if (machine->no_vga) {
5584 default_vga = 0;
5585 }
ac33f8fa
GH		 5586 if (machine->no_floppy) {
5587 default_floppy = 0;
5588 }
5589 if (machine->no_cdrom) {
5590 default_cdrom = 0;
5591 }
5592 if (machine->no_sdcard) {
5593 default_sdcard = 0;
5594 }
986c5f78 5595
993fbfdb 5596 if (display_type == DT_NOGRAPHIC) {
6a5e8b0e
GH		 5597 if (default_parallel)
5598 add_device_config(DEV_PARALLEL, "null");
e1c09175
GH		 5599 if (default_serial && default_monitor) {
5600 add_device_config(DEV_SERIAL, "mon:stdio");
986c5f78
GH		 5601 } else if (default_virtcon && default_monitor) {
5602 add_device_config(DEV_VIRTCON, "mon:stdio");
e1c09175
GH		 5603 } else {
5604 if (default_serial)
5605 add_device_config(DEV_SERIAL, "stdio");
986c5f78
GH		 5606 if (default_virtcon)
5607 add_device_config(DEV_VIRTCON, "stdio");
e1c09175 5608 if (default_monitor)
6ca5582d 5609 monitor_parse("stdio", "readline");
e1c09175 5610 }
998bbd74
GH		 5611 } else {
5612 if (default_serial)
5613 add_device_config(DEV_SERIAL, "vc:80Cx24C");
6a5e8b0e
GH		 5614 if (default_parallel)
5615 add_device_config(DEV_PARALLEL, "vc:80Cx24C");
abdeed06 5616 if (default_monitor)
6ca5582d 5617 monitor_parse("vc:80Cx24C", "readline");
38536da1
AG		 5618 if (default_virtcon)
5619 add_device_config(DEV_VIRTCON, "vc:80Cx24C");
bc0129d9 5620 }
64465297
GH		 5621 if (default_vga)
5622 vga_interface_type = VGA_CIRRUS;
bc0129d9 5623
1a688d3b
GH		 5624 if (qemu_opts_foreach(&qemu_chardev_opts, chardev_init_func, NULL, 1) != 0)
5625 exit(1);
5626
71e3ceb8 5627#ifndef _WIN32
71e3ceb8
TS		 5628 if (daemonize) {
5629 pid_t pid;
5630
5631 if (pipe(fds) == -1)
5632 exit(1);
5633
5634 pid = fork();
5635 if (pid > 0) {
5636 uint8_t status;
5637 ssize_t len;
5638
5639 close(fds[1]);
5640
5641 again:
93815bc2
TS		 5642 len = read(fds[0], &status, 1);
5643 if (len == -1 && (errno == EINTR))
5644 goto again;
5645
5646 if (len != 1)
5647 exit(1);
5648 else if (status == 1) {
850810d0 5649 fprintf(stderr, "Could not acquire pidfile: %s\n", strerror(errno));
93815bc2
TS		 5650 exit(1);
5651 } else
5652 exit(0);
71e3ceb8 5653 } else if (pid < 0)
93815bc2 5654 exit(1);
71e3ceb8 5655
40ff6d7e
KW		 5656 close(fds[0]);
5657 qemu_set_cloexec(fds[1]);
5658
71e3ceb8
TS		 5659 setsid();
5660
5661 pid = fork();
5662 if (pid > 0)
5663 exit(0);
5664 else if (pid < 0)
5665 exit(1);
5666
5667 umask(027);
71e3ceb8
TS		 5668
5669 signal(SIGTSTP, SIG_IGN);
5670 signal(SIGTTOU, SIG_IGN);
5671 signal(SIGTTIN, SIG_IGN);
5672 }
099fe236 5673#endif
71e3ceb8 5674
aa26bb2d 5675 if (pid_file && qemu_create_pidfile(pid_file) != 0) {
099fe236 5676#ifndef _WIN32
93815bc2
TS		 5677 if (daemonize) {
5678 uint8_t status = 1;
dc330e28
KS		 5679 if (write(fds[1], &status, 1) != 1) {
5680 perror("daemonize. Writing to pipe\n");
5681 }
93815bc2 5682 } else
099fe236 5683#endif
850810d0 5684 fprintf(stderr, "Could not acquire pid file: %s\n", strerror(errno));
93815bc2
TS		 5685 exit(1);
5686 }
5687
214910a7
MT		 5688 if (kvm_enabled()) {
5689 int ret;
5690
5691 ret = kvm_init(smp_cpus);
5692 if (ret < 0) {
5693 fprintf(stderr, "failed to initialize KVM\n");
5694 exit(1);
5695 }
5696 }
5697
3fcf7b6b
AL		 5698 if (qemu_init_main_loop()) {
5699 fprintf(stderr, "qemu_init_main_loop failed\n");
5700 exit(1);
5701 }
a20dd508 5702 linux_boot = (kernel_filename != NULL);
6c41b272 5703
f8d39c01
TS		 5704 if (!linux_boot && *kernel_cmdline != '\0') {
5705 fprintf(stderr, "-append only allowed with -kernel option\n");
5706 exit(1);
5707 }
5708
5709 if (!linux_boot && initrd_filename != NULL) {
5710 fprintf(stderr, "-initrd only allowed with -kernel option\n");
5711 exit(1);
5712 }
5713
bf65f53f
FN		 5714#ifndef _WIN32
5715 /* Win32 doesn't support line-buffering and requires size >= 2 */
b118d61e 5716 setvbuf(stdout, NULL, _IOLBF, 0);
bf65f53f 5717#endif
3b46e624 5718
7183b4b4
AL		 5719 if (init_timer_alarm() < 0) {
5720 fprintf(stderr, "could not initialize alarm timer\n");
5721 exit(1);
5722 }
2e70f6ef
PB		 5723 if (use_icount && icount_time_shift < 0) {
5724 use_icount = 2;
5725 /* 125MIPS seems a reasonable initial guess at the guest speed.
5726 It will be corrected fairly quickly anyway. */
5727 icount_time_shift = 3;
5728 init_icount_adjust();
5729 }
634fce96 5730
fd1dff4b
FB		 5731#ifdef _WIN32
5732 socket_init();
5733#endif
5734
dc1c9fe8
MM		 5735 if (net_init_clients() < 0) {
5736 exit(1);
702c651c 5737 }
f1510b2c 5738
406c8df3
GC		 5739 net_boot = (boot_devices_bitmap >> ('n' - 'a')) & 0xF;
5740 net_set_boot_mask(net_boot);
5741
dc72ac14 5742 /* init the bluetooth world */
bd3c948d
GH		 5743 if (foreach_device_config(DEV_BT, bt_parse))
5744 exit(1);
dc72ac14 5745
0824d6fc 5746 /* init the memory */
94a6b54f
PB		 5747 if (ram_size == 0)
5748 ram_size = DEFAULT_RAM_SIZE * 1024 * 1024;
9ae02555 5749
26a5f13b
FB		 5750 /* init the dynamic translator */
5751 cpu_exec_init_all(tb_size * 1024 * 1024);
5752
eb852011 5753 bdrv_init_with_whitelist();
c4b1fcc0 5754
c163b5ca 5755 blk_mig_init();
5756
ac33f8fa 5757 if (default_cdrom) {
aa40fc9c
GH		 5758 /* we always create the cdrom drive, even if no disk is there */
5759 drive_add(NULL, CDROM_ALIAS);
ac33f8fa 5760 }
c4b1fcc0 5761
ac33f8fa 5762 if (default_floppy) {
aa40fc9c
GH		 5763 /* we always create at least one floppy */
5764 drive_add(NULL, FD_ALIAS, 0);
ac33f8fa 5765 }
86f55663 5766
ac33f8fa 5767 if (default_sdcard) {
aa40fc9c
GH		 5768 /* we always create one sd slot, even if no card is in it */
5769 drive_add(NULL, SD_ALIAS);
5770 }
9d413d1d 5771
e4bcb14c 5772 /* open the virtual block devices */
9dfd7c7a 5773 if (snapshot)
7282a033
GH		 5774 qemu_opts_foreach(&qemu_drive_opts, drive_enable_snapshot, NULL, 0);
5775 if (qemu_opts_foreach(&qemu_drive_opts, drive_init_func, machine, 1) != 0)
9dfd7c7a 5776 exit(1);
3e3d5815 5777
2faf58cd 5778 vmstate_register(0, &vmstate_timers ,&timers_state);
c163b5ca 5779 register_savevm_live("ram", 0, 3, NULL, ram_save_live, NULL,
5780 ram_load, NULL);
8a7ddc38 5781
268a362c
AL		 5782 if (nb_numa_nodes > 0) {
5783 int i;
5784
5785 if (nb_numa_nodes > smp_cpus) {
5786 nb_numa_nodes = smp_cpus;
5787 }
5788
5789 /* If no memory size if given for any node, assume the default case
5790 * and distribute the available memory equally across all nodes
5791 */
5792 for (i = 0; i < nb_numa_nodes; i++) {
5793 if (node_mem[i] != 0)
5794 break;
5795 }
5796 if (i == nb_numa_nodes) {
5797 uint64_t usedmem = 0;
5798
5799 /* On Linux, the each node's border has to be 8MB aligned,
5800 * the final node gets the rest.
5801 */
5802 for (i = 0; i < nb_numa_nodes - 1; i++) {
5803 node_mem[i] = (ram_size / nb_numa_nodes) & ~((1 << 23UL) - 1);
5804 usedmem += node_mem[i];
5805 }
5806 node_mem[i] = ram_size - usedmem;
5807 }
5808
5809 for (i = 0; i < nb_numa_nodes; i++) {
5810 if (node_cpumask[i] != 0)
5811 break;
5812 }
5813 /* assigning the VCPUs round-robin is easier to implement, guest OSes
5814 * must cope with this anyway, because there are BIOSes out there in
5815 * real machines which also use this scheme.
5816 */
5817 if (i == nb_numa_nodes) {
5818 for (i = 0; i < smp_cpus; i++) {
5819 node_cpumask[i % nb_numa_nodes] |= 1 << i;
5820 }
5821 }
5822 }
5823
998bbd74
GH		 5824 if (foreach_device_config(DEV_SERIAL, serial_parse) < 0)
5825 exit(1);
6a5e8b0e
GH		 5826 if (foreach_device_config(DEV_PARALLEL, parallel_parse) < 0)
5827 exit(1);
aee1b935
GH		 5828 if (foreach_device_config(DEV_VIRTCON, virtcon_parse) < 0)
5829 exit(1);
c9f398e5
PA		 5830 if (foreach_device_config(DEV_DEBUGCON, debugcon_parse) < 0)
5831 exit(1);
2796dae0 5832
aae9460e
PB		 5833 module_call_init(MODULE_INIT_DEVICE);
5834
ff952ba2
MA		 5835 if (qemu_opts_foreach(&qemu_device_opts, device_help_func, NULL, 0) != 0)
5836 exit(0);
5837
09aaa160
MA		 5838 if (watchdog) {
5839 i = select_watchdog(watchdog);
5840 if (i > 0)
5841 exit (i == 1 ? 1 : 0);
5842 }
5843
b6b61144 5844 if (machine->compat_props) {
458fb679 5845 qdev_prop_register_global_list(machine->compat_props);
b6b61144 5846 }
d0fef6fb
GH		 5847 qemu_add_globals();
5848
fbe1b595 5849 machine->init(ram_size, boot_devices,
3023f332
AL		 5850 kernel_filename, kernel_cmdline, initrd_filename, cpu_model);
5851
268a362c 5852
67b3b71d
JQ		 5853#ifndef _WIN32
5854 /* must be after terminal init, SDL library changes signal handlers */
5855 sighandler_setup();
5856#endif
5857
268a362c
AL		 5858 for (env = first_cpu; env != NULL; env = env->next_cpu) {
5859 for (i = 0; i < nb_numa_nodes; i++) {
5860 if (node_cpumask[i] & (1 << env->cpu_index)) {
5861 env->numa_node = i;
5862 }
5863 }
5864 }
5865
6f338c34
AL		 5866 current_machine = machine;
5867
3023f332
AL		 5868 /* init USB devices */
5869 if (usb_enabled) {
0752706d
MA		 5870 if (foreach_device_config(DEV_USB, usb_parse) < 0)
5871 exit(1);
3023f332
AL		 5872 }
5873
bd3c948d 5874 /* init generic devices */
f31d07d1 5875 if (qemu_opts_foreach(&qemu_device_opts, device_init_func, NULL, 1) != 0)
bd3c948d
GH		 5876 exit(1);
5877
8f391ab4
AL		 5878 if (!display_state)
5879 dumb_display_init();
3023f332
AL		 5880 /* just use the first displaystate for the moment */
5881 ds = display_state;
993fbfdb
AL		 5882
5883 if (display_type == DT_DEFAULT) {
5884#if defined(CONFIG_SDL) || defined(CONFIG_COCOA)
5885 display_type = DT_SDL;
5886#else
5887 display_type = DT_VNC;
5888 vnc_display = "localhost:0,to=99";
5889 show_vnc_port = 1;
5890#endif
5891 }
5892
5893
5894 switch (display_type) {
5895 case DT_NOGRAPHIC:
5896 break;
4d3b6f6e 5897#if defined(CONFIG_CURSES)
993fbfdb
AL		 5898 case DT_CURSES:
5899 curses_display_init(ds, full_screen);
5900 break;
4d3b6f6e 5901#endif
5b0753e0 5902#if defined(CONFIG_SDL)
993fbfdb
AL		 5903 case DT_SDL:
5904 sdl_display_init(ds, full_screen, no_frame);
5905 break;
5b0753e0 5906#elif defined(CONFIG_COCOA)
993fbfdb
AL		 5907 case DT_SDL:
5908 cocoa_display_init(ds, full_screen);
5909 break;
313aa567 5910#endif
993fbfdb
AL		 5911 case DT_VNC:
5912 vnc_display_init(ds);
5913 if (vnc_display_open(ds, vnc_display) < 0)
5914 exit(1);
f92f8afe 5915
993fbfdb
AL		 5916 if (show_vnc_port) {
5917 printf("VNC server running on `%s'\n", vnc_display_local_addr(ds));
f92f8afe 5918 }
993fbfdb
AL		 5919 break;
5920 default:
5921 break;
313aa567 5922 }
7d957bd8 5923 dpy_resize(ds);
5b08fc10 5924
3023f332
AL		 5925 dcl = ds->listeners;
5926 while (dcl != NULL) {
5927 if (dcl->dpy_refresh != NULL) {
5928 ds->gui_timer = qemu_new_timer(rt_clock, gui_update, ds);
5929 qemu_mod_timer(ds->gui_timer, qemu_get_clock(rt_clock));
20d8a3ed 5930 }
3023f332 5931 dcl = dcl->next;
20d8a3ed 5932 }
3023f332 5933
993fbfdb 5934 if (display_type == DT_NOGRAPHIC || display_type == DT_VNC) {
9043b62d
BS		 5935 nographic_timer = qemu_new_timer(rt_clock, nographic_update, NULL);
5936 qemu_mod_timer(nographic_timer, qemu_get_clock(rt_clock));
5937 }
5938
2796dae0
AL		 5939 text_consoles_set_display(display_state);
5940
88589343
GH		 5941 if (qemu_opts_foreach(&qemu_mon_opts, mon_init_func, NULL, 1) != 0)
5942 exit(1);
82c643ff 5943
59030a8c
AL		 5944 if (gdbstub_dev && gdbserver_start(gdbstub_dev) < 0) {
5945 fprintf(stderr, "qemu: could not open gdbserver on device '%s'\n",
5946 gdbstub_dev);
5947 exit(1);
45669e00 5948 }
45669e00 5949
3418bd25
GH		 5950 qdev_machine_creation_done();
5951
15ff7705
GH		 5952 if (rom_load_all() != 0) {
5953 fprintf(stderr, "rom loading failed\n");
5954 exit(1);
5955 }
45a50b16 5956
504c2948 5957 qemu_system_reset();
05f2401e
JQ		 5958 if (loadvm) {
5959 if (load_vmstate(cur_mon, loadvm) < 0) {
5960 autostart = 0;
5961 }
5962 }
d63d307f 5963
2bb8c10c 5964 if (incoming) {
5bb7910a 5965 qemu_start_incoming_migration(incoming);
6b99dadc 5966 } else if (autostart) {
c0f4ce77 5967 vm_start();
6b99dadc 5968 }
ffd843bc 5969
b9e82a59 5970#ifndef _WIN32
71e3ceb8
TS		 5971 if (daemonize) {
5972 uint8_t status = 0;
5973 ssize_t len;
71e3ceb8
TS		 5974
5975 again1:
5976 len = write(fds[1], &status, 1);
5977 if (len == -1 && (errno == EINTR))
5978 goto again1;
5979
5980 if (len != 1)
5981 exit(1);
5982
dc330e28
KS		 5983 if (chdir("/")) {
5984 perror("not able to chdir to /");
5985 exit(1);
5986 }
40ff6d7e 5987 TFR(fd = qemu_open("/dev/null", O_RDWR));
71e3ceb8
TS		 5988 if (fd == -1)
5989 exit(1);
0858532e 5990 }
71e3ceb8 5991
0858532e
AL		 5992 if (run_as) {
5993 pwd = getpwnam(run_as);
5994 if (!pwd) {
5995 fprintf(stderr, "User \"%s\" doesn't exist\n", run_as);
5996 exit(1);
5997 }
5998 }
5999
6000 if (chroot_dir) {
6001 if (chroot(chroot_dir) < 0) {
6002 fprintf(stderr, "chroot failed\n");
6003 exit(1);
6004 }
dc330e28
KS		 6005 if (chdir("/")) {
6006 perror("not able to chdir to /");
6007 exit(1);
6008 }
0858532e
AL		 6009 }
6010
6011 if (run_as) {
6012 if (setgid(pwd->pw_gid) < 0) {
6013 fprintf(stderr, "Failed to setgid(%d)\n", pwd->pw_gid);
6014 exit(1);
6015 }
6016 if (setuid(pwd->pw_uid) < 0) {
6017 fprintf(stderr, "Failed to setuid(%d)\n", pwd->pw_uid);
6018 exit(1);
6019 }
6020 if (setuid(0) != -1) {
6021 fprintf(stderr, "Dropping privileges failed\n");
6022 exit(1);
6023 }
6024 }
0858532e
AL		 6025
6026 if (daemonize) {
6027 dup2(fd, 0);
6028 dup2(fd, 1);
6029 dup2(fd, 2);
71e3ceb8 6030
0858532e 6031 close(fd);
71e3ceb8 6032 }
b9e82a59 6033#endif
71e3ceb8 6034
8a7ddc38 6035 main_loop();
40c3bac3 6036 quit_timers();
63a01ef8 6037 net_cleanup();
b46a8906 6038
0824d6fc
FB		 6039 return 0;
6040}
Qemu copy for testing