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Merge remote branch 'mst/for_anthony' into staging
[mirror_qemu.git] / vl.c
CommitLineData
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
LS		 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
41c872b6
PB		 934int64_t qemu_get_clock_ns(QEMUClock *clock)
935{
936 switch(clock->type) {
937 case QEMU_CLOCK_REALTIME:
938 return get_clock();
939 default:
940 case QEMU_CLOCK_VIRTUAL:
941 if (use_icount) {
942 return cpu_get_icount();
943 } else {
944 return cpu_get_clock();
945 }
946 case QEMU_CLOCK_HOST:
947 return get_clock_realtime();
948 }
949}
950
0fdddf80 951static void init_clocks(void)
1dce7c3c
FB		 952{
953 init_get_clock();
0fdddf80
JK		 954 rt_clock = qemu_new_clock(QEMU_CLOCK_REALTIME);
955 vm_clock = qemu_new_clock(QEMU_CLOCK_VIRTUAL);
21d5d12b 956 host_clock = qemu_new_clock(QEMU_CLOCK_HOST);
6875204c
JK		 957
958 rtc_clock = host_clock;
1dce7c3c
FB		 959}
960
8a7ddc38
FB		 961/* save a timer */
962void qemu_put_timer(QEMUFile *f, QEMUTimer *ts)
963{
964 uint64_t expire_time;
965
966 if (qemu_timer_pending(ts)) {
967 expire_time = ts->expire_time;
968 } else {
969 expire_time = -1;
970 }
971 qemu_put_be64(f, expire_time);
972}
973
974void qemu_get_timer(QEMUFile *f, QEMUTimer *ts)
975{
976 uint64_t expire_time;
977
978 expire_time = qemu_get_be64(f);
979 if (expire_time != -1) {
980 qemu_mod_timer(ts, expire_time);
981 } else {
982 qemu_del_timer(ts);
983 }
984}
985
2faf58cd
JQ		 986static const VMStateDescription vmstate_timers = {
987 .name = "timer",
988 .version_id = 2,
989 .minimum_version_id = 1,
990 .minimum_version_id_old = 1,
991 .fields = (VMStateField []) {
992 VMSTATE_INT64(cpu_ticks_offset, TimersState),
274dfed8 993 VMSTATE_INT64(dummy, TimersState),
2faf58cd
JQ		 994 VMSTATE_INT64_V(cpu_clock_offset, TimersState, 2),
995 VMSTATE_END_OF_LIST()
c88676f8 996 }
2faf58cd 997};
8a7ddc38 998
50317c7f
AL		 999static void qemu_event_increment(void);
1000
67b915a5 1001#ifdef _WIN32
b9e82a59
BS		 1002static void CALLBACK host_alarm_handler(UINT uTimerID, UINT uMsg,
1003 DWORD_PTR dwUser, DWORD_PTR dw1,
1004 DWORD_PTR dw2)
67b915a5 1005#else
8a7ddc38 1006static void host_alarm_handler(int host_signum)
67b915a5 1007#endif
8a7ddc38 1008{
02ba45c5
FB		 1009#if 0
1010#define DISP_FREQ 1000
1011 {
1012 static int64_t delta_min = INT64_MAX;
1013 static int64_t delta_max, delta_cum, last_clock, delta, ti;
1014 static int count;
1015 ti = qemu_get_clock(vm_clock);
1016 if (last_clock != 0) {
1017 delta = ti - last_clock;
1018 if (delta < delta_min)
1019 delta_min = delta;
1020 if (delta > delta_max)
1021 delta_max = delta;
1022 delta_cum += delta;
1023 if (++count == DISP_FREQ) {
26a76461 1024 printf("timer: min=%" PRId64 " us max=%" PRId64 " us avg=%" PRId64 " us avg_freq=%0.3f Hz\n",
6ee093c9
JQ		 1025 muldiv64(delta_min, 1000000, get_ticks_per_sec()),
1026 muldiv64(delta_max, 1000000, get_ticks_per_sec()),
1027 muldiv64(delta_cum, 1000000 / DISP_FREQ, get_ticks_per_sec()),
1028 (double)get_ticks_per_sec() / ((double)delta_cum / DISP_FREQ));
02ba45c5
FB		 1029 count = 0;
1030 delta_min = INT64_MAX;
1031 delta_max = 0;
1032 delta_cum = 0;
1033 }
1034 }
1035 last_clock = ti;
1036 }
1037#endif
efe75411 1038 if (alarm_has_dynticks(alarm_timer) ||
2e70f6ef 1039 (!use_icount &&
0fdddf80 1040 qemu_timer_expired(active_timers[QEMU_CLOCK_VIRTUAL],
2e70f6ef 1041 qemu_get_clock(vm_clock))) ||
0fdddf80 1042 qemu_timer_expired(active_timers[QEMU_CLOCK_REALTIME],
21d5d12b
JK		 1043 qemu_get_clock(rt_clock)) ||
1044 qemu_timer_expired(active_timers[QEMU_CLOCK_HOST],
1045 qemu_get_clock(host_clock))) {
50317c7f 1046 qemu_event_increment();
e332340a 1047 if (alarm_timer) alarm_timer->flags |= ALARM_FLAG_EXPIRED;
d5d08334 1048
d6dc3d42
AL		 1049#ifndef CONFIG_IOTHREAD
1050 if (next_cpu) {
4f8eb8da 1051 /* stop the currently executing cpu because a timer occured */
d6dc3d42 1052 cpu_exit(next_cpu);
4f8eb8da 1053 }
d6dc3d42 1054#endif
43b96858 1055 timer_alarm_pending = 1;
d9f75a4e 1056 qemu_notify_event();
8a7ddc38
FB		 1057 }
1058}
1059
2e70f6ef 1060static int64_t qemu_next_deadline(void)
efe75411 1061{
21d5d12b
JK		 1062 /* To avoid problems with overflow limit this to 2^32. */
1063 int64_t delta = INT32_MAX;
efe75411 1064
0fdddf80
JK		 1065 if (active_timers[QEMU_CLOCK_VIRTUAL]) {
1066 delta = active_timers[QEMU_CLOCK_VIRTUAL]->expire_time -
2e70f6ef 1067 qemu_get_clock(vm_clock);
21d5d12b
JK		 1068 }
1069 if (active_timers[QEMU_CLOCK_HOST]) {
1070 int64_t hdelta = active_timers[QEMU_CLOCK_HOST]->expire_time -
1071 qemu_get_clock(host_clock);
1072 if (hdelta < delta)
1073 delta = hdelta;
efe75411
TS		 1074 }
1075
2e70f6ef
PB		 1076 if (delta < 0)
1077 delta = 0;
efe75411 1078
2e70f6ef
PB		 1079 return delta;
1080}
1081
f64382ba 1082#if defined(__linux__)
2e70f6ef
PB		 1083static uint64_t qemu_next_deadline_dyntick(void)
1084{
1085 int64_t delta;
1086 int64_t rtdelta;
1087
1088 if (use_icount)
1089 delta = INT32_MAX;
1090 else
1091 delta = (qemu_next_deadline() + 999) / 1000;
1092
0fdddf80
JK		 1093 if (active_timers[QEMU_CLOCK_REALTIME]) {
1094 rtdelta = (active_timers[QEMU_CLOCK_REALTIME]->expire_time -
2e70f6ef
PB		 1095 qemu_get_clock(rt_clock))*1000;
1096 if (rtdelta < delta)
1097 delta = rtdelta;
1098 }
1099
1100 if (delta < MIN_TIMER_REARM_US)
1101 delta = MIN_TIMER_REARM_US;
1102
1103 return delta;
efe75411 1104}
8632fb9a 1105#endif
efe75411 1106
fd872598
FB		 1107#ifndef _WIN32
1108
7183b4b4
AL		 1109/* Sets a specific flag */
1110static int fcntl_setfl(int fd, int flag)
1111{
1112 int flags;
1113
1114 flags = fcntl(fd, F_GETFL);
1115 if (flags == -1)
1116 return -errno;
1117
1118 if (fcntl(fd, F_SETFL, flags | flag) == -1)
1119 return -errno;
1120
1121 return 0;
1122}
1123
829309c7
FB		 1124#if defined(__linux__)
1125
fd872598
FB		 1126#define RTC_FREQ 1024
1127
de9a95f0 1128static void enable_sigio_timer(int fd)
c8994013
TS		 1129{
1130 struct sigaction act;
1131
1132 /* timer signal */
1133 sigfillset(&act.sa_mask);
1134 act.sa_flags = 0;
c8994013
TS		 1135 act.sa_handler = host_alarm_handler;
1136
1137 sigaction(SIGIO, &act, NULL);
7183b4b4 1138 fcntl_setfl(fd, O_ASYNC);
c8994013
TS		 1139 fcntl(fd, F_SETOWN, getpid());
1140}
829309c7 1141
c40ec5a9
TS		 1142static int hpet_start_timer(struct qemu_alarm_timer *t)
1143{
1144 struct hpet_info info;
1145 int r, fd;
1146
40ff6d7e 1147 fd = qemu_open("/dev/hpet", O_RDONLY);
c40ec5a9
TS		 1148 if (fd < 0)
1149 return -1;
1150
1151 /* Set frequency */
1152 r = ioctl(fd, HPET_IRQFREQ, RTC_FREQ);
1153 if (r < 0) {
1154 fprintf(stderr, "Could not configure '/dev/hpet' to have a 1024Hz timer. This is not a fatal\n"
1155 "error, but for better emulation accuracy type:\n"
1156 "'echo 1024 > /proc/sys/dev/hpet/max-user-freq' as root.\n");
1157 goto fail;
1158 }
1159
1160 /* Check capabilities */
1161 r = ioctl(fd, HPET_INFO, &info);
1162 if (r < 0)
1163 goto fail;
1164
1165 /* Enable periodic mode */
1166 r = ioctl(fd, HPET_EPI, 0);
1167 if (info.hi_flags && (r < 0))
1168 goto fail;
1169
1170 /* Enable interrupt */
1171 r = ioctl(fd, HPET_IE_ON, 0);
1172 if (r < 0)
1173 goto fail;
1174
1175 enable_sigio_timer(fd);
fcdc2129 1176 t->priv = (void *)(long)fd;
c40ec5a9
TS		 1177
1178 return 0;
1179fail:
1180 close(fd);
1181 return -1;
1182}
1183
1184static void hpet_stop_timer(struct qemu_alarm_timer *t)
1185{
fcdc2129 1186 int fd = (long)t->priv;
c40ec5a9
TS		 1187
1188 close(fd);
1189}
1190
c8994013 1191static int rtc_start_timer(struct qemu_alarm_timer *t)
fd872598 1192{
c8994013 1193 int rtc_fd;
b5a23ad4 1194 unsigned long current_rtc_freq = 0;
c8994013 1195
40ff6d7e 1196 TFR(rtc_fd = qemu_open("/dev/rtc", O_RDONLY));
fd872598
FB		 1197 if (rtc_fd < 0)
1198 return -1;
b5a23ad4
AZ		 1199 ioctl(rtc_fd, RTC_IRQP_READ, &current_rtc_freq);
1200 if (current_rtc_freq != RTC_FREQ &&
1201 ioctl(rtc_fd, RTC_IRQP_SET, RTC_FREQ) < 0) {
fd872598
FB		 1202 fprintf(stderr, "Could not configure '/dev/rtc' to have a 1024 Hz timer. This is not a fatal\n"
1203 "error, but for better emulation accuracy either use a 2.6 host Linux kernel or\n"
1204 "type 'echo 1024 > /proc/sys/dev/rtc/max-user-freq' as root.\n");
1205 goto fail;
1206 }
1207 if (ioctl(rtc_fd, RTC_PIE_ON, 0) < 0) {
1208 fail:
1209 close(rtc_fd);
1210 return -1;
1211 }
c8994013
TS		 1212
1213 enable_sigio_timer(rtc_fd);
1214
fcdc2129 1215 t->priv = (void *)(long)rtc_fd;
c8994013 1216
fd872598
FB		 1217 return 0;
1218}
1219
c8994013 1220static void rtc_stop_timer(struct qemu_alarm_timer *t)
829309c7 1221{
fcdc2129 1222 int rtc_fd = (long)t->priv;
c8994013
TS		 1223
1224 close(rtc_fd);
829309c7
FB		 1225}
1226
efe75411
TS		 1227static int dynticks_start_timer(struct qemu_alarm_timer *t)
1228{
1229 struct sigevent ev;
1230 timer_t host_timer;
1231 struct sigaction act;
1232
1233 sigfillset(&act.sa_mask);
1234 act.sa_flags = 0;
efe75411
TS		 1235 act.sa_handler = host_alarm_handler;
1236
1237 sigaction(SIGALRM, &act, NULL);
1238
9ed415b2
JCD		 1239 /*
1240 * Initialize ev struct to 0 to avoid valgrind complaining
1241 * about uninitialized data in timer_create call
1242 */
1243 memset(&ev, 0, sizeof(ev));
efe75411
TS		 1244 ev.sigev_value.sival_int = 0;
1245 ev.sigev_notify = SIGEV_SIGNAL;
1246 ev.sigev_signo = SIGALRM;
1247
1248 if (timer_create(CLOCK_REALTIME, &ev, &host_timer)) {
1249 perror("timer_create");
1250
1251 /* disable dynticks */
1252 fprintf(stderr, "Dynamic Ticks disabled\n");
1253
1254 return -1;
1255 }
1256
0399bfe0 1257 t->priv = (void *)(long)host_timer;
efe75411
TS		 1258
1259 return 0;
1260}
1261
1262static void dynticks_stop_timer(struct qemu_alarm_timer *t)
1263{
0399bfe0 1264 timer_t host_timer = (timer_t)(long)t->priv;
efe75411
TS		 1265
1266 timer_delete(host_timer);
1267}
1268
1269static void dynticks_rearm_timer(struct qemu_alarm_timer *t)
1270{
0399bfe0 1271 timer_t host_timer = (timer_t)(long)t->priv;
efe75411
TS		 1272 struct itimerspec timeout;
1273 int64_t nearest_delta_us = INT64_MAX;
1274 int64_t current_us;
1275
0fdddf80 1276 if (!active_timers[QEMU_CLOCK_REALTIME] &&
21d5d12b
JK		 1277 !active_timers[QEMU_CLOCK_VIRTUAL] &&
1278 !active_timers[QEMU_CLOCK_HOST])
d5d08334 1279 return;
efe75411 1280
2e70f6ef 1281 nearest_delta_us = qemu_next_deadline_dyntick();
efe75411
TS		 1282
1283 /* check whether a timer is already running */
1284 if (timer_gettime(host_timer, &timeout)) {
1285 perror("gettime");
1286 fprintf(stderr, "Internal timer error: aborting\n");
1287 exit(1);
1288 }
1289 current_us = timeout.it_value.tv_sec * 1000000 + timeout.it_value.tv_nsec/1000;
1290 if (current_us && current_us <= nearest_delta_us)
1291 return;
1292
1293 timeout.it_interval.tv_sec = 0;
1294 timeout.it_interval.tv_nsec = 0; /* 0 for one-shot timer */
1295 timeout.it_value.tv_sec = nearest_delta_us / 1000000;
1296 timeout.it_value.tv_nsec = (nearest_delta_us % 1000000) * 1000;
1297 if (timer_settime(host_timer, 0 /* RELATIVE */, &timeout, NULL)) {
1298 perror("settime");
1299 fprintf(stderr, "Internal timer error: aborting\n");
1300 exit(1);
1301 }
1302}
1303
70744b3a 1304#endif /* defined(__linux__) */
231c6586 1305
c8994013
TS		 1306static int unix_start_timer(struct qemu_alarm_timer *t)
1307{
1308 struct sigaction act;
1309 struct itimerval itv;
1310 int err;
1311
1312 /* timer signal */
1313 sigfillset(&act.sa_mask);
1314 act.sa_flags = 0;
c8994013
TS		 1315 act.sa_handler = host_alarm_handler;
1316
1317 sigaction(SIGALRM, &act, NULL);
1318
1319 itv.it_interval.tv_sec = 0;
1320 /* for i386 kernel 2.6 to get 1 ms */
1321 itv.it_interval.tv_usec = 999;
1322 itv.it_value.tv_sec = 0;
1323 itv.it_value.tv_usec = 10 * 1000;
1324
1325 err = setitimer(ITIMER_REAL, &itv, NULL);
1326 if (err)
1327 return -1;
1328
1329 return 0;
1330}
1331
1332static void unix_stop_timer(struct qemu_alarm_timer *t)
1333{
1334 struct itimerval itv;
1335
1336 memset(&itv, 0, sizeof(itv));
1337 setitimer(ITIMER_REAL, &itv, NULL);
1338}
1339
829309c7 1340#endif /* !defined(_WIN32) */
fd872598 1341
f49e58dc 1342
c8994013
TS		 1343#ifdef _WIN32
1344
1345static int win32_start_timer(struct qemu_alarm_timer *t)
1346{
1347 TIMECAPS tc;
1348 struct qemu_alarm_win32 *data = t->priv;
efe75411 1349 UINT flags;
c8994013 1350
c8994013
TS		 1351 memset(&tc, 0, sizeof(tc));
1352 timeGetDevCaps(&tc, sizeof(tc));
1353
1354 if (data->period < tc.wPeriodMin)
1355 data->period = tc.wPeriodMin;
1356
1357 timeBeginPeriod(data->period);
1358
efe75411
TS		 1359 flags = TIME_CALLBACK_FUNCTION;
1360 if (alarm_has_dynticks(t))
1361 flags |= TIME_ONESHOT;
1362 else
1363 flags |= TIME_PERIODIC;
1364
c8994013
TS		 1365 data->timerId = timeSetEvent(1, // interval (ms)
1366 data->period, // resolution
1367 host_alarm_handler, // function
1368 (DWORD)t, // parameter
efe75411 1369 flags);
c8994013
TS		 1370
1371 if (!data->timerId) {
20889d4e 1372 fprintf(stderr, "Failed to initialize win32 alarm timer: %ld\n",
705e83f6 1373 GetLastError());
c8994013 1374 timeEndPeriod(data->period);
c8994013
TS		 1375 return -1;
1376 }
1377
c8994013
TS		 1378 return 0;
1379}
1380
1381static void win32_stop_timer(struct qemu_alarm_timer *t)
1382{
1383 struct qemu_alarm_win32 *data = t->priv;
1384
1385 timeKillEvent(data->timerId);
1386 timeEndPeriod(data->period);
c8994013
TS		 1387}
1388
efe75411
TS		 1389static void win32_rearm_timer(struct qemu_alarm_timer *t)
1390{
1391 struct qemu_alarm_win32 *data = t->priv;
efe75411 1392
0fdddf80 1393 if (!active_timers[QEMU_CLOCK_REALTIME] &&
21d5d12b
JK		 1394 !active_timers[QEMU_CLOCK_VIRTUAL] &&
1395 !active_timers[QEMU_CLOCK_HOST])
d5d08334 1396 return;
efe75411 1397
efe75411
TS		 1398 timeKillEvent(data->timerId);
1399
1400 data->timerId = timeSetEvent(1,
1401 data->period,
1402 host_alarm_handler,
1403 (DWORD)t,
1404 TIME_ONESHOT | TIME_PERIODIC);
1405
1406 if (!data->timerId) {
20889d4e 1407 fprintf(stderr, "Failed to re-arm win32 alarm timer %ld\n",
705e83f6 1408 GetLastError());
efe75411
TS		 1409
1410 timeEndPeriod(data->period);
efe75411
TS		 1411 exit(1);
1412 }
1413}
1414
c8994013
TS		 1415#endif /* _WIN32 */
1416
7183b4b4 1417static int init_timer_alarm(void)
8a7ddc38 1418{
223f0d72 1419 struct qemu_alarm_timer *t = NULL;
c8994013 1420 int i, err = -1;
f49e58dc 1421
c8994013
TS		 1422 for (i = 0; alarm_timers[i].name; i++) {
1423 t = &alarm_timers[i];
1424
c8994013
TS		 1425 err = t->start(t);
1426 if (!err)
1427 break;
67b915a5 1428 }
fd872598 1429
c8994013 1430 if (err) {
7183b4b4
AL		 1431 err = -ENOENT;
1432 goto fail;
67b915a5 1433 }
c8994013
TS		 1434
1435 alarm_timer = t;
7183b4b4 1436
6abfbd79 1437 return 0;
7183b4b4
AL		 1438
1439fail:
7183b4b4 1440 return err;
8a7ddc38
FB		 1441}
1442
9596ebb7 1443static void quit_timers(void)
40c3bac3 1444{
c8994013
TS		 1445 alarm_timer->stop(alarm_timer);
1446 alarm_timer = NULL;
40c3bac3
FB		 1447}
1448
f6503059
AZ		 1449/***********************************************************/
1450/* host time/date access */
1451void qemu_get_timedate(struct tm *tm, int offset)
1452{
1453 time_t ti;
1454 struct tm *ret;
1455
1456 time(&ti);
1457 ti += offset;
1458 if (rtc_date_offset == -1) {
1459 if (rtc_utc)
1460 ret = gmtime(&ti);
1461 else
1462 ret = localtime(&ti);
1463 } else {
1464 ti -= rtc_date_offset;
1465 ret = gmtime(&ti);
1466 }
1467
1468 memcpy(tm, ret, sizeof(struct tm));
1469}
1470
1471int qemu_timedate_diff(struct tm *tm)
1472{
1473 time_t seconds;
1474
1475 if (rtc_date_offset == -1)
1476 if (rtc_utc)
1477 seconds = mktimegm(tm);
1478 else
1479 seconds = mktime(tm);
1480 else
1481 seconds = mktimegm(tm) + rtc_date_offset;
1482
1483 return seconds - time(NULL);
1484}
1485
1ed2fc1f
JK		 1486static void configure_rtc_date_offset(const char *startdate, int legacy)
1487{
1488 time_t rtc_start_date;
1489 struct tm tm;
1490
1491 if (!strcmp(startdate, "now") && legacy) {
1492 rtc_date_offset = -1;
1493 } else {
1494 if (sscanf(startdate, "%d-%d-%dT%d:%d:%d",
1495 &tm.tm_year,
1496 &tm.tm_mon,
1497 &tm.tm_mday,
1498 &tm.tm_hour,
1499 &tm.tm_min,
1500 &tm.tm_sec) == 6) {
1501 /* OK */
1502 } else if (sscanf(startdate, "%d-%d-%d",
1503 &tm.tm_year,
1504 &tm.tm_mon,
1505 &tm.tm_mday) == 3) {
1506 tm.tm_hour = 0;
1507 tm.tm_min = 0;
1508 tm.tm_sec = 0;
1509 } else {
1510 goto date_fail;
1511 }
1512 tm.tm_year -= 1900;
1513 tm.tm_mon--;
1514 rtc_start_date = mktimegm(&tm);
1515 if (rtc_start_date == -1) {
1516 date_fail:
1517 fprintf(stderr, "Invalid date format. Valid formats are:\n"
1518 "'2006-06-17T16:01:21' or '2006-06-17'\n");
1519 exit(1);
1520 }
1521 rtc_date_offset = time(NULL) - rtc_start_date;
1522 }
1523}
1524
1525static void configure_rtc(QemuOpts *opts)
1526{
1527 const char *value;
1528
1529 value = qemu_opt_get(opts, "base");
1530 if (value) {
1531 if (!strcmp(value, "utc")) {
1532 rtc_utc = 1;
1533 } else if (!strcmp(value, "localtime")) {
1534 rtc_utc = 0;
1535 } else {
1536 configure_rtc_date_offset(value, 0);
1537 }
1538 }
6875204c
JK		 1539 value = qemu_opt_get(opts, "clock");
1540 if (value) {
1541 if (!strcmp(value, "host")) {
1542 rtc_clock = host_clock;
1543 } else if (!strcmp(value, "vm")) {
1544 rtc_clock = vm_clock;
1545 } else {
1546 fprintf(stderr, "qemu: invalid option value '%s'\n", value);
1547 exit(1);
1548 }
1549 }
1ed2fc1f
JK		 1550#ifdef CONFIG_TARGET_I386
1551 value = qemu_opt_get(opts, "driftfix");
1552 if (value) {
1553 if (!strcmp(buf, "slew")) {
1554 rtc_td_hack = 1;
1555 } else if (!strcmp(buf, "none")) {
1556 rtc_td_hack = 0;
1557 } else {
1558 fprintf(stderr, "qemu: invalid option value '%s'\n", value);
1559 exit(1);
1560 }
1561 }
1562#endif
1563}
1564
fd1dff4b 1565#ifdef _WIN32
fd1dff4b
FB		 1566static void socket_cleanup(void)
1567{
1568 WSACleanup();
1569}
82c643ff 1570
fd1dff4b
FB		 1571static int socket_init(void)
1572{
1573 WSADATA Data;
1574 int ret, err;
1575
1576 ret = WSAStartup(MAKEWORD(2,2), &Data);
1577 if (ret != 0) {
1578 err = WSAGetLastError();
1579 fprintf(stderr, "WSAStartup: %d\n", err);
1580 return -1;
1581 }
1582 atexit(socket_cleanup);
1583 return 0;
1584}
64b7b733
AJ		 1585#endif
1586
1ae26a18
AZ		 1587/***********************************************************/
1588/* Bluetooth support */
1589static int nb_hcis;
1590static int cur_hci;
1591static struct HCIInfo *hci_table[MAX_NICS];
dc72ac14 1592
1ae26a18
AZ		 1593static struct bt_vlan_s {
1594 struct bt_scatternet_s net;
1595 int id;
1596 struct bt_vlan_s *next;
1597} *first_bt_vlan;
1598
1599/* find or alloc a new bluetooth "VLAN" */
674bb261 1600static struct bt_scatternet_s *qemu_find_bt_vlan(int id)
1ae26a18
AZ		 1601{
1602 struct bt_vlan_s **pvlan, *vlan;
1603 for (vlan = first_bt_vlan; vlan != NULL; vlan = vlan->next) {
1604 if (vlan->id == id)
1605 return &vlan->net;
1606 }
1607 vlan = qemu_mallocz(sizeof(struct bt_vlan_s));
1608 vlan->id = id;
1609 pvlan = &first_bt_vlan;
1610 while (*pvlan != NULL)
1611 pvlan = &(*pvlan)->next;
1612 *pvlan = vlan;
1613 return &vlan->net;
1614}
1615
1616static void null_hci_send(struct HCIInfo *hci, const uint8_t *data, int len)
1617{
1618}
1619
1620static int null_hci_addr_set(struct HCIInfo *hci, const uint8_t *bd_addr)
1621{
1622 return -ENOTSUP;
1623}
1624
1625static struct HCIInfo null_hci = {
1626 .cmd_send = null_hci_send,
1627 .sco_send = null_hci_send,
1628 .acl_send = null_hci_send,
1629 .bdaddr_set = null_hci_addr_set,
1630};
1631
1632struct HCIInfo *qemu_next_hci(void)
1633{
1634 if (cur_hci == nb_hcis)
1635 return &null_hci;
1636
1637 return hci_table[cur_hci++];
1638}
1639
dc72ac14
AZ		 1640static struct HCIInfo *hci_init(const char *str)
1641{
1642 char *endp;
1643 struct bt_scatternet_s *vlan = 0;
1644
1645 if (!strcmp(str, "null"))
1646 /* null */
1647 return &null_hci;
1648 else if (!strncmp(str, "host", 4) && (str[4] == '\0' || str[4] == ':'))
1649 /* host[:hciN] */
1650 return bt_host_hci(str[4] ? str + 5 : "hci0");
1651 else if (!strncmp(str, "hci", 3)) {
1652 /* hci[,vlan=n] */
1653 if (str[3]) {
1654 if (!strncmp(str + 3, ",vlan=", 6)) {
1655 vlan = qemu_find_bt_vlan(strtol(str + 9, &endp, 0));
1656 if (*endp)
1657 vlan = 0;
1658 }
1659 } else
1660 vlan = qemu_find_bt_vlan(0);
1661 if (vlan)
1662 return bt_new_hci(vlan);
1663 }
1664
1665 fprintf(stderr, "qemu: Unknown bluetooth HCI `%s'.\n", str);
1666
1667 return 0;
1668}
1669
1670static int bt_hci_parse(const char *str)
1671{
1672 struct HCIInfo *hci;
c227f099 1673 bdaddr_t bdaddr;
dc72ac14
AZ		 1674
1675 if (nb_hcis >= MAX_NICS) {
1676 fprintf(stderr, "qemu: Too many bluetooth HCIs (max %i).\n", MAX_NICS);
1677 return -1;
1678 }
1679
1680 hci = hci_init(str);
1681 if (!hci)
1682 return -1;
1683
1684 bdaddr.b[0] = 0x52;
1685 bdaddr.b[1] = 0x54;
1686 bdaddr.b[2] = 0x00;
1687 bdaddr.b[3] = 0x12;
1688 bdaddr.b[4] = 0x34;
1689 bdaddr.b[5] = 0x56 + nb_hcis;
1690 hci->bdaddr_set(hci, bdaddr.b);
1691
1692 hci_table[nb_hcis++] = hci;
1693
1694 return 0;
1695}
1696
1697static void bt_vhci_add(int vlan_id)
1698{
1699 struct bt_scatternet_s *vlan = qemu_find_bt_vlan(vlan_id);
1700
1701 if (!vlan->slave)
1702 fprintf(stderr, "qemu: warning: adding a VHCI to "
1703 "an empty scatternet %i\n", vlan_id);
1704
1705 bt_vhci_init(bt_new_hci(vlan));
1706}
1707
1708static struct bt_device_s *bt_device_add(const char *opt)
1709{
1710 struct bt_scatternet_s *vlan;
1711 int vlan_id = 0;
1712 char *endp = strstr(opt, ",vlan=");
1713 int len = (endp ? endp - opt : strlen(opt)) + 1;
1714 char devname[10];
1715
1716 pstrcpy(devname, MIN(sizeof(devname), len), opt);
1717
1718 if (endp) {
1719 vlan_id = strtol(endp + 6, &endp, 0);
1720 if (*endp) {
1721 fprintf(stderr, "qemu: unrecognised bluetooth vlan Id\n");
1722 return 0;
1723 }
1724 }
1725
1726 vlan = qemu_find_bt_vlan(vlan_id);
1727
1728 if (!vlan->slave)
1729 fprintf(stderr, "qemu: warning: adding a slave device to "
1730 "an empty scatternet %i\n", vlan_id);
1731
1732 if (!strcmp(devname, "keyboard"))
1733 return bt_keyboard_init(vlan);
1734
1735 fprintf(stderr, "qemu: unsupported bluetooth device `%s'\n", devname);
1736 return 0;
1737}
1738
1739static int bt_parse(const char *opt)
1740{
1741 const char *endp, *p;
1742 int vlan;
1743
1744 if (strstart(opt, "hci", &endp)) {
1745 if (!*endp || *endp == ',') {
1746 if (*endp)
1747 if (!strstart(endp, ",vlan=", 0))
1748 opt = endp + 1;
1749
1750 return bt_hci_parse(opt);
1751 }
1752 } else if (strstart(opt, "vhci", &endp)) {
1753 if (!*endp || *endp == ',') {
1754 if (*endp) {
1755 if (strstart(endp, ",vlan=", &p)) {
1756 vlan = strtol(p, (char **) &endp, 0);
1757 if (*endp) {
1758 fprintf(stderr, "qemu: bad scatternet '%s'\n", p);
1759 return 1;
1760 }
1761 } else {
1762 fprintf(stderr, "qemu: bad parameter '%s'\n", endp + 1);
1763 return 1;
1764 }
1765 } else
1766 vlan = 0;
1767
1768 bt_vhci_add(vlan);
1769 return 0;
1770 }
1771 } else if (strstart(opt, "device:", &endp))
1772 return !bt_device_add(endp);
1773
1774 fprintf(stderr, "qemu: bad bluetooth parameter '%s'\n", opt);
1775 return 1;
1776}
1777
1ae26a18
AZ		 1778/***********************************************************/
1779/* QEMU Block devices */
1780
609497ab 1781#define HD_ALIAS "index=%d,media=disk"
e4bcb14c 1782#define CDROM_ALIAS "index=2,media=cdrom"
e4bcb14c 1783#define FD_ALIAS "index=%d,if=floppy"
609497ab
AZ		 1784#define PFLASH_ALIAS "if=pflash"
1785#define MTD_ALIAS "if=mtd"
9d413d1d 1786#define SD_ALIAS "index=0,if=sd"
e4bcb14c 1787
9dfd7c7a 1788QemuOpts *drive_add(const char *file, const char *fmt, ...)
e4bcb14c
TS		 1789{
1790 va_list ap;
9dfd7c7a
GH		 1791 char optstr[1024];
1792 QemuOpts *opts;
e4bcb14c 1793
e4bcb14c 1794 va_start(ap, fmt);
9dfd7c7a 1795 vsnprintf(optstr, sizeof(optstr), fmt, ap);
e4bcb14c
TS		 1796 va_end(ap);
1797
7282a033 1798 opts = qemu_opts_parse(&qemu_drive_opts, optstr, NULL);
9dfd7c7a
GH		 1799 if (!opts) {
1800 fprintf(stderr, "%s: huh? duplicate? (%s)\n",
1801 __FUNCTION__, optstr);
1802 return NULL;
1803 }
1804 if (file)
1805 qemu_opt_set(opts, "file", file);
1806 return opts;
b01b1111
AL		 1807}
1808
751c6a17 1809DriveInfo *drive_get(BlockInterfaceType type, int bus, int unit)
e4bcb14c 1810{
751c6a17 1811 DriveInfo *dinfo;
e4bcb14c
TS		 1812
1813 /* seek interface, bus and unit */
1814
72cf2d4f 1815 QTAILQ_FOREACH(dinfo, &drives, next) {
751c6a17
GH		 1816 if (dinfo->type == type &&
1817 dinfo->bus == bus &&
1818 dinfo->unit == unit)
1819 return dinfo;
1820 }
e4bcb14c 1821
751c6a17 1822 return NULL;
e4bcb14c
TS		 1823}
1824
2e810b36 1825DriveInfo *drive_get_by_id(const char *id)
1dae12e6
GH		 1826{
1827 DriveInfo *dinfo;
1828
72cf2d4f 1829 QTAILQ_FOREACH(dinfo, &drives, next) {
1dae12e6
GH		 1830 if (strcmp(id, dinfo->id))
1831 continue;
1832 return dinfo;
1833 }
1834 return NULL;
1835}
1836
f60d39bc 1837int drive_get_max_bus(BlockInterfaceType type)
e4bcb14c
TS		 1838{
1839 int max_bus;
751c6a17 1840 DriveInfo *dinfo;
e4bcb14c
TS		 1841
1842 max_bus = -1;
72cf2d4f 1843 QTAILQ_FOREACH(dinfo, &drives, next) {
751c6a17
GH		 1844 if(dinfo->type == type &&
1845 dinfo->bus > max_bus)
1846 max_bus = dinfo->bus;
e4bcb14c
TS		 1847 }
1848 return max_bus;
1849}
1850
fa879c64
AL		 1851const char *drive_get_serial(BlockDriverState *bdrv)
1852{
751c6a17 1853 DriveInfo *dinfo;
fa879c64 1854
72cf2d4f 1855 QTAILQ_FOREACH(dinfo, &drives, next) {
751c6a17
GH		 1856 if (dinfo->bdrv == bdrv)
1857 return dinfo->serial;
1858 }
fa879c64
AL		 1859
1860 return "\0";
1861}
1862
f7850099
KW		 1863BlockInterfaceErrorAction drive_get_on_error(
1864 BlockDriverState *bdrv, int is_read)
428c5705 1865{
751c6a17 1866 DriveInfo *dinfo;
428c5705 1867
72cf2d4f 1868 QTAILQ_FOREACH(dinfo, &drives, next) {
751c6a17 1869 if (dinfo->bdrv == bdrv)
e9b2e818 1870 return is_read ? dinfo->on_read_error : dinfo->on_write_error;
751c6a17 1871 }
428c5705 1872
e9b2e818 1873 return is_read ? BLOCK_ERR_REPORT : BLOCK_ERR_STOP_ENOSPC;
428c5705
AL		 1874}
1875
a1620fac
AJ		 1876static void bdrv_format_print(void *opaque, const char *name)
1877{
1878 fprintf(stderr, " %s", name);
1879}
1880
56a14938 1881void drive_uninit(DriveInfo *dinfo)
b01b1111 1882{
56a14938
GH		 1883 qemu_opts_del(dinfo->opts);
1884 bdrv_delete(dinfo->bdrv);
1885 QTAILQ_REMOVE(&drives, dinfo, next);
1886 qemu_free(dinfo);
b01b1111
AL		 1887}
1888
e9b2e818
KW		 1889static int parse_block_error_action(const char *buf, int is_read)
1890{
1891 if (!strcmp(buf, "ignore")) {
1892 return BLOCK_ERR_IGNORE;
1893 } else if (!is_read && !strcmp(buf, "enospc")) {
1894 return BLOCK_ERR_STOP_ENOSPC;
1895 } else if (!strcmp(buf, "stop")) {
1896 return BLOCK_ERR_STOP_ANY;
1897 } else if (!strcmp(buf, "report")) {
1898 return BLOCK_ERR_REPORT;
1899 } else {
1900 fprintf(stderr, "qemu: '%s' invalid %s error action\n",
1901 buf, is_read ? "read" : "write");
1902 return -1;
1903 }
1904}
1905
9dfd7c7a 1906DriveInfo *drive_init(QemuOpts *opts, void *opaque,
751c6a17 1907 int *fatal_error)
e4bcb14c 1908{
9dfd7c7a
GH		 1909 const char *buf;
1910 const char *file = NULL;
c8522bdf 1911 char devname[128];
9dfd7c7a 1912 const char *serial;
c8522bdf 1913 const char *mediastr = "";
f60d39bc 1914 BlockInterfaceType type;
e4bcb14c
TS		 1915 enum { MEDIA_DISK, MEDIA_CDROM } media;
1916 int bus_id, unit_id;
1917 int cyls, heads, secs, translation;
1e72d3b7 1918 BlockDriver *drv = NULL;
4d73cd3b 1919 QEMUMachine *machine = opaque;
e4bcb14c
TS		 1920 int max_devs;
1921 int index;
33f00271 1922 int cache;
5c6c3a6c 1923 int aio = 0;
59f2689d 1924 int ro = 0;
e9b2e818
KW		 1925 int bdrv_flags;
1926 int on_read_error, on_write_error;
c2cc47a4 1927 const char *devaddr;
751c6a17 1928 DriveInfo *dinfo;
9dfd7c7a 1929 int snapshot = 0;
e4bcb14c 1930
9dfd7c7a 1931 *fatal_error = 1;
e4bcb14c 1932
e4bcb14c 1933 translation = BIOS_ATA_TRANSLATION_AUTO;
0aa217e4 1934 cache = 1;
e4bcb14c 1935
4d007814 1936 if (machine && machine->use_scsi) {
f60d39bc 1937 type = IF_SCSI;
e4bcb14c 1938 max_devs = MAX_SCSI_DEVS;
363a37d5 1939 pstrcpy(devname, sizeof(devname), "scsi");
e4bcb14c 1940 } else {
f60d39bc 1941 type = IF_IDE;
e4bcb14c 1942 max_devs = MAX_IDE_DEVS;
363a37d5 1943 pstrcpy(devname, sizeof(devname), "ide");
e4bcb14c
TS		 1944 }
1945 media = MEDIA_DISK;
1946
1947 /* extract parameters */
9dfd7c7a
GH		 1948 bus_id = qemu_opt_get_number(opts, "bus", 0);
1949 unit_id = qemu_opt_get_number(opts, "unit", -1);
1950 index = qemu_opt_get_number(opts, "index", -1);
e4bcb14c 1951
9dfd7c7a
GH		 1952 cyls = qemu_opt_get_number(opts, "cyls", 0);
1953 heads = qemu_opt_get_number(opts, "heads", 0);
1954 secs = qemu_opt_get_number(opts, "secs", 0);
e4bcb14c 1955
9dfd7c7a 1956 snapshot = qemu_opt_get_bool(opts, "snapshot", 0);
59f2689d 1957 ro = qemu_opt_get_bool(opts, "readonly", 0);
e4bcb14c 1958
9dfd7c7a
GH		 1959 file = qemu_opt_get(opts, "file");
1960 serial = qemu_opt_get(opts, "serial");
1961
1962 if ((buf = qemu_opt_get(opts, "if")) != NULL) {
ae45d369 1963 pstrcpy(devname, sizeof(devname), buf);
e4bcb14c 1964 if (!strcmp(buf, "ide")) {
f60d39bc 1965 type = IF_IDE;
e4bcb14c
TS		 1966 max_devs = MAX_IDE_DEVS;
1967 } else if (!strcmp(buf, "scsi")) {
f60d39bc 1968 type = IF_SCSI;
e4bcb14c
TS		 1969 max_devs = MAX_SCSI_DEVS;
1970 } else if (!strcmp(buf, "floppy")) {
f60d39bc 1971 type = IF_FLOPPY;
e4bcb14c
TS		 1972 max_devs = 0;
1973 } else if (!strcmp(buf, "pflash")) {
f60d39bc 1974 type = IF_PFLASH;
e4bcb14c
TS		 1975 max_devs = 0;
1976 } else if (!strcmp(buf, "mtd")) {
f60d39bc 1977 type = IF_MTD;
e4bcb14c
TS		 1978 max_devs = 0;
1979 } else if (!strcmp(buf, "sd")) {
f60d39bc 1980 type = IF_SD;
e4bcb14c 1981 max_devs = 0;
6e02c38d
AL		 1982 } else if (!strcmp(buf, "virtio")) {
1983 type = IF_VIRTIO;
1984 max_devs = 0;
62d23efa
AL		 1985 } else if (!strcmp(buf, "xen")) {
1986 type = IF_XEN;
1987 max_devs = 0;
a8659e90
GH		 1988 } else if (!strcmp(buf, "none")) {
1989 type = IF_NONE;
1990 max_devs = 0;
62d23efa 1991 } else {
9dfd7c7a 1992 fprintf(stderr, "qemu: unsupported bus type '%s'\n", buf);
751c6a17 1993 return NULL;
e4bcb14c
TS		 1994 }
1995 }
1996
e4bcb14c 1997 if (cyls || heads || secs) {
5afe3f04 1998 if (cyls < 1 || (type == IF_IDE && cyls > 16383)) {
9dfd7c7a 1999 fprintf(stderr, "qemu: '%s' invalid physical cyls number\n", buf);
751c6a17 2000 return NULL;
e4bcb14c 2001 }
5afe3f04 2002 if (heads < 1 || (type == IF_IDE && heads > 16)) {
9dfd7c7a 2003 fprintf(stderr, "qemu: '%s' invalid physical heads number\n", buf);
751c6a17 2004 return NULL;
e4bcb14c 2005 }
5afe3f04 2006 if (secs < 1 || (type == IF_IDE && secs > 63)) {
9dfd7c7a 2007 fprintf(stderr, "qemu: '%s' invalid physical secs number\n", buf);
751c6a17 2008 return NULL;
e4bcb14c
TS		 2009 }
2010 }
2011
9dfd7c7a 2012 if ((buf = qemu_opt_get(opts, "trans")) != NULL) {
e4bcb14c
TS		 2013 if (!cyls) {
2014 fprintf(stderr,
2015 "qemu: '%s' trans must be used with cyls,heads and secs\n",
9dfd7c7a 2016 buf);
751c6a17 2017 return NULL;
e4bcb14c
TS		 2018 }
2019 if (!strcmp(buf, "none"))
2020 translation = BIOS_ATA_TRANSLATION_NONE;
2021 else if (!strcmp(buf, "lba"))
2022 translation = BIOS_ATA_TRANSLATION_LBA;
2023 else if (!strcmp(buf, "auto"))
2024 translation = BIOS_ATA_TRANSLATION_AUTO;
2025 else {
9dfd7c7a 2026 fprintf(stderr, "qemu: '%s' invalid translation type\n", buf);
751c6a17 2027 return NULL;
e4bcb14c
TS		 2028 }
2029 }
2030
9dfd7c7a 2031 if ((buf = qemu_opt_get(opts, "media")) != NULL) {
e4bcb14c
TS		 2032 if (!strcmp(buf, "disk")) {
2033 media = MEDIA_DISK;
2034 } else if (!strcmp(buf, "cdrom")) {
2035 if (cyls || secs || heads) {
2036 fprintf(stderr,
9dfd7c7a 2037 "qemu: '%s' invalid physical CHS format\n", buf);
751c6a17 2038 return NULL;
e4bcb14c
TS		 2039 }
2040 media = MEDIA_CDROM;
2041 } else {
9dfd7c7a 2042 fprintf(stderr, "qemu: '%s' invalid media\n", buf);
751c6a17 2043 return NULL;
e4bcb14c
TS		 2044 }
2045 }
2046
9dfd7c7a 2047 if ((buf = qemu_opt_get(opts, "cache")) != NULL) {
9f7965c7 2048 if (!strcmp(buf, "off") || !strcmp(buf, "none"))
33f00271 2049 cache = 0;
9f7965c7 2050 else if (!strcmp(buf, "writethrough"))
33f00271 2051 cache = 1;
9f7965c7
AL		 2052 else if (!strcmp(buf, "writeback"))
2053 cache = 2;
33f00271
AZ		 2054 else {
2055 fprintf(stderr, "qemu: invalid cache option\n");
751c6a17 2056 return NULL;
33f00271
AZ		 2057 }
2058 }
2059
5c6c3a6c
CH		 2060#ifdef CONFIG_LINUX_AIO
2061 if ((buf = qemu_opt_get(opts, "aio")) != NULL) {
2062 if (!strcmp(buf, "threads"))
2063 aio = 0;
2064 else if (!strcmp(buf, "native"))
2065 aio = 1;
2066 else {
2067 fprintf(stderr, "qemu: invalid aio option\n");
2068 return NULL;
2069 }
2070 }
2071#endif
2072
9dfd7c7a 2073 if ((buf = qemu_opt_get(opts, "format")) != NULL) {
a1620fac
AJ		 2074 if (strcmp(buf, "?") == 0) {
2075 fprintf(stderr, "qemu: Supported formats:");
2076 bdrv_iterate_format(bdrv_format_print, NULL);
2077 fprintf(stderr, "\n");
751c6a17 2078 return NULL;
a1620fac 2079 }
eb852011 2080 drv = bdrv_find_whitelisted_format(buf);
1e72d3b7
AJ		 2081 if (!drv) {
2082 fprintf(stderr, "qemu: '%s' invalid format\n", buf);
751c6a17 2083 return NULL;
1e72d3b7
AJ		 2084 }
2085 }
2086
e9b2e818 2087 on_write_error = BLOCK_ERR_STOP_ENOSPC;
9dfd7c7a 2088 if ((buf = qemu_opt_get(opts, "werror")) != NULL) {
869a5c6d 2089 if (type != IF_IDE && type != IF_SCSI && type != IF_VIRTIO) {
ea8a5d7f 2090 fprintf(stderr, "werror is no supported by this format\n");
751c6a17 2091 return NULL;
428c5705 2092 }
e9b2e818
KW		 2093
2094 on_write_error = parse_block_error_action(buf, 0);
2095 if (on_write_error < 0) {
2096 return NULL;
2097 }
2098 }
2099
2100 on_read_error = BLOCK_ERR_REPORT;
2101 if ((buf = qemu_opt_get(opts, "rerror")) != NULL) {
f35d68f0 2102 if (type != IF_IDE && type != IF_VIRTIO) {
e9b2e818
KW		 2103 fprintf(stderr, "rerror is no supported by this format\n");
2104 return NULL;
2105 }
2106
2107 on_read_error = parse_block_error_action(buf, 1);
2108 if (on_read_error < 0) {
751c6a17 2109 return NULL;
428c5705
AL		 2110 }
2111 }
2112
9dfd7c7a 2113 if ((devaddr = qemu_opt_get(opts, "addr")) != NULL) {
c2cc47a4 2114 if (type != IF_VIRTIO) {
9dfd7c7a 2115 fprintf(stderr, "addr is not supported\n");
751c6a17 2116 return NULL;
c2cc47a4 2117 }
c2cc47a4
MA		 2118 }
2119
e4bcb14c
TS		 2120 /* compute bus and unit according index */
2121
2122 if (index != -1) {
2123 if (bus_id != 0 || unit_id != -1) {
2124 fprintf(stderr,
9dfd7c7a 2125 "qemu: index cannot be used with bus and unit\n");
751c6a17 2126 return NULL;
e4bcb14c
TS		 2127 }
2128 if (max_devs == 0)
2129 {
2130 unit_id = index;
2131 bus_id = 0;
2132 } else {
2133 unit_id = index % max_devs;
2134 bus_id = index / max_devs;
2135 }
2136 }
2137
2138 /* if user doesn't specify a unit_id,
2139 * try to find the first free
2140 */
2141
2142 if (unit_id == -1) {
2143 unit_id = 0;
751c6a17 2144 while (drive_get(type, bus_id, unit_id) != NULL) {
e4bcb14c
TS		 2145 unit_id++;
2146 if (max_devs && unit_id >= max_devs) {
2147 unit_id -= max_devs;
2148 bus_id++;
2149 }
2150 }
2151 }
2152
2153 /* check unit id */
2154
2155 if (max_devs && unit_id >= max_devs) {
9dfd7c7a
GH		 2156 fprintf(stderr, "qemu: unit %d too big (max is %d)\n",
2157 unit_id, max_devs - 1);
751c6a17 2158 return NULL;
e4bcb14c
TS		 2159 }
2160
2161 /*
2162 * ignore multiple definitions
2163 */
2164
751c6a17
GH		 2165 if (drive_get(type, bus_id, unit_id) != NULL) {
2166 *fatal_error = 0;
2167 return NULL;
2168 }
e4bcb14c
TS		 2169
2170 /* init */
2171
751c6a17 2172 dinfo = qemu_mallocz(sizeof(*dinfo));
e23d9c4d 2173 if ((buf = qemu_opts_id(opts)) != NULL) {
9dfd7c7a
GH		 2174 dinfo->id = qemu_strdup(buf);
2175 } else {
1dae12e6 2176 /* no id supplied -> create one */
9dfd7c7a 2177 dinfo->id = qemu_mallocz(32);
1dae12e6
GH		 2178 if (type == IF_IDE || type == IF_SCSI)
2179 mediastr = (media == MEDIA_CDROM) ? "-cd" : "-hd";
2180 if (max_devs)
9dfd7c7a 2181 snprintf(dinfo->id, 32, "%s%i%s%i",
1dae12e6
GH		 2182 devname, bus_id, mediastr, unit_id);
2183 else
9dfd7c7a 2184 snprintf(dinfo->id, 32, "%s%s%i",
1dae12e6
GH		 2185 devname, mediastr, unit_id);
2186 }
1dae12e6 2187 dinfo->bdrv = bdrv_new(dinfo->id);
751c6a17
GH		 2188 dinfo->devaddr = devaddr;
2189 dinfo->type = type;
2190 dinfo->bus = bus_id;
2191 dinfo->unit = unit_id;
e9b2e818
KW		 2192 dinfo->on_read_error = on_read_error;
2193 dinfo->on_write_error = on_write_error;
9dfd7c7a
GH		 2194 dinfo->opts = opts;
2195 if (serial)
2196 strncpy(dinfo->serial, serial, sizeof(serial));
72cf2d4f 2197 QTAILQ_INSERT_TAIL(&drives, dinfo, next);
e4bcb14c 2198
f60d39bc 2199 switch(type) {
e4bcb14c
TS		 2200 case IF_IDE:
2201 case IF_SCSI:
62d23efa 2202 case IF_XEN:
c219331e 2203 case IF_NONE:
e4bcb14c
TS		 2204 switch(media) {
2205 case MEDIA_DISK:
2206 if (cyls != 0) {
1dae12e6
GH		 2207 bdrv_set_geometry_hint(dinfo->bdrv, cyls, heads, secs);
2208 bdrv_set_translation_hint(dinfo->bdrv, translation);
e4bcb14c
TS		 2209 }
2210 break;
2211 case MEDIA_CDROM:
1dae12e6 2212 bdrv_set_type_hint(dinfo->bdrv, BDRV_TYPE_CDROM);
e4bcb14c
TS		 2213 break;
2214 }
2215 break;
2216 case IF_SD:
2217 /* FIXME: This isn't really a floppy, but it's a reasonable
2218 approximation. */
2219 case IF_FLOPPY:
1dae12e6 2220 bdrv_set_type_hint(dinfo->bdrv, BDRV_TYPE_FLOPPY);
e4bcb14c
TS		 2221 break;
2222 case IF_PFLASH:
2223 case IF_MTD:
2224 break;
d176c495
GH		 2225 case IF_VIRTIO:
2226 /* add virtio block device */
2227 opts = qemu_opts_create(&qemu_device_opts, NULL, 0);
2228 qemu_opt_set(opts, "driver", "virtio-blk-pci");
2229 qemu_opt_set(opts, "drive", dinfo->id);
2230 if (devaddr)
2231 qemu_opt_set(opts, "addr", devaddr);
2232 break;
aae9460e
PB		 2233 case IF_COUNT:
2234 abort();
e4bcb14c 2235 }
9dfd7c7a 2236 if (!file) {
751c6a17
GH		 2237 *fatal_error = 0;
2238 return NULL;
2239 }
33f00271 2240 bdrv_flags = 0;
9f7965c7 2241 if (snapshot) {
33f00271 2242 bdrv_flags |= BDRV_O_SNAPSHOT;
9f7965c7
AL		 2243 cache = 2; /* always use write-back with snapshot */
2244 }
2245 if (cache == 0) /* no caching */
2246 bdrv_flags |= BDRV_O_NOCACHE;
2247 else if (cache == 2) /* write-back */
2248 bdrv_flags |= BDRV_O_CACHE_WB;
5c6c3a6c
CH		 2249
2250 if (aio == 1) {
2251 bdrv_flags |= BDRV_O_NATIVE_AIO;
2252 } else {
2253 bdrv_flags &= ~BDRV_O_NATIVE_AIO;
2254 }
2255
59f2689d 2256 if (ro == 1) {
f5edb014
NS		 2257 if (type != IF_SCSI && type != IF_VIRTIO && type != IF_FLOPPY) {
2258 fprintf(stderr, "qemu: readonly flag not supported for drive with this interface\n");
59f2689d
NS		 2259 return NULL;
2260 }
b196b153
NS		 2261 }
2262 /*
2263 * cdrom is read-only. Set it now, after above interface checking
2264 * since readonly attribute not explicitly required, so no error.
2265 */
2266 if (media == MEDIA_CDROM) {
f5edb014 2267 ro = 1;
59f2689d 2268 }
f5edb014 2269 bdrv_flags |= ro ? 0 : BDRV_O_RDWR;
59f2689d 2270
1dae12e6 2271 if (bdrv_open2(dinfo->bdrv, file, bdrv_flags, drv) < 0) {
850810d0
JF		 2272 fprintf(stderr, "qemu: could not open disk image %s: %s\n",
2273 file, strerror(errno));
751c6a17 2274 return NULL;
e4bcb14c 2275 }
5c6c3a6c 2276
1dae12e6 2277 if (bdrv_key_required(dinfo->bdrv))
c0f4ce77 2278 autostart = 0;
751c6a17
GH		 2279 *fatal_error = 0;
2280 return dinfo;
e4bcb14c
TS		 2281}
2282
9dfd7c7a
GH		 2283static int drive_init_func(QemuOpts *opts, void *opaque)
2284{
2285 QEMUMachine *machine = opaque;
2286 int fatal_error = 0;
2287
2288 if (drive_init(opts, machine, &fatal_error) == NULL) {
2289 if (fatal_error)
2290 return 1;
2291 }
2292 return 0;
2293}
2294
2295static int drive_enable_snapshot(QemuOpts *opts, void *opaque)
2296{
2297 if (NULL == qemu_opt_get(opts, "snapshot")) {
2298 qemu_opt_set(opts, "snapshot", "on");
2299 }
2300 return 0;
2301}
2302
76e30d0f
JK		 2303void qemu_register_boot_set(QEMUBootSetHandler *func, void *opaque)
2304{
2305 boot_set_handler = func;
2306 boot_set_opaque = opaque;
2307}
2308
2309int qemu_boot_set(const char *boot_devices)
2310{
2311 if (!boot_set_handler) {
2312 return -EINVAL;
2313 }
2314 return boot_set_handler(boot_set_opaque, boot_devices);
2315}
2316
ef3adf68
JK		 2317static int parse_bootdevices(char *devices)
2318{
2319 /* We just do some generic consistency checks */
2320 const char *p;
2321 int bitmap = 0;
2322
2323 for (p = devices; *p != '\0'; p++) {
2324 /* Allowed boot devices are:
2325 * a-b: floppy disk drives
2326 * c-f: IDE disk drives
2327 * g-m: machine implementation dependant drives
2328 * n-p: network devices
2329 * It's up to each machine implementation to check if the given boot
2330 * devices match the actual hardware implementation and firmware
2331 * features.
2332 */
2333 if (*p < 'a' || *p > 'p') {
2334 fprintf(stderr, "Invalid boot device '%c'\n", *p);
2335 exit(1);
2336 }
2337 if (bitmap & (1 << (*p - 'a'))) {
2338 fprintf(stderr, "Boot device '%c' was given twice\n", *p);
2339 exit(1);
2340 }
2341 bitmap |= 1 << (*p - 'a');
2342 }
2343 return bitmap;
2344}
2345
e0f084bf
JK		 2346static void restore_boot_devices(void *opaque)
2347{
2348 char *standard_boot_devices = opaque;
2349
2350 qemu_boot_set(standard_boot_devices);
2351
2352 qemu_unregister_reset(restore_boot_devices, standard_boot_devices);
2353 qemu_free(standard_boot_devices);
2354}
2355
268a362c
AL		 2356static void numa_add(const char *optarg)
2357{
2358 char option[128];
2359 char *endptr;
2360 unsigned long long value, endvalue;
2361 int nodenr;
2362
2363 optarg = get_opt_name(option, 128, optarg, ',') + 1;
2364 if (!strcmp(option, "node")) {
2365 if (get_param_value(option, 128, "nodeid", optarg) == 0) {
2366 nodenr = nb_numa_nodes;
2367 } else {
2368 nodenr = strtoull(option, NULL, 10);
2369 }
2370
2371 if (get_param_value(option, 128, "mem", optarg) == 0) {
2372 node_mem[nodenr] = 0;
2373 } else {
2374 value = strtoull(option, &endptr, 0);
2375 switch (*endptr) {
2376 case 0: case 'M': case 'm':
2377 value <<= 20;
2378 break;
2379 case 'G': case 'g':
2380 value <<= 30;
2381 break;
2382 }
2383 node_mem[nodenr] = value;
2384 }
2385 if (get_param_value(option, 128, "cpus", optarg) == 0) {
2386 node_cpumask[nodenr] = 0;
2387 } else {
2388 value = strtoull(option, &endptr, 10);
2389 if (value >= 64) {
2390 value = 63;
2391 fprintf(stderr, "only 64 CPUs in NUMA mode supported.\n");
2392 } else {
2393 if (*endptr == '-') {
2394 endvalue = strtoull(endptr+1, &endptr, 10);
2395 if (endvalue >= 63) {
2396 endvalue = 62;
2397 fprintf(stderr,
2398 "only 63 CPUs in NUMA mode supported.\n");
2399 }
0dfbd514 2400 value = (2ULL << endvalue) - (1ULL << value);
268a362c 2401 } else {
0dfbd514 2402 value = 1ULL << value;
268a362c
AL		 2403 }
2404 }
2405 node_cpumask[nodenr] = value;
2406 }
2407 nb_numa_nodes++;
2408 }
2409 return;
2410}
2411
dc6b1c09
AP		 2412static void smp_parse(const char *optarg)
2413{
2414 int smp, sockets = 0, threads = 0, cores = 0;
2415 char *endptr;
2416 char option[128];
2417
2418 smp = strtoul(optarg, &endptr, 10);
2419 if (endptr != optarg) {
2420 if (*endptr == ',') {
2421 endptr++;
2422 }
2423 }
2424 if (get_param_value(option, 128, "sockets", endptr) != 0)
2425 sockets = strtoull(option, NULL, 10);
2426 if (get_param_value(option, 128, "cores", endptr) != 0)
2427 cores = strtoull(option, NULL, 10);
2428 if (get_param_value(option, 128, "threads", endptr) != 0)
2429 threads = strtoull(option, NULL, 10);
2430 if (get_param_value(option, 128, "maxcpus", endptr) != 0)
2431 max_cpus = strtoull(option, NULL, 10);
2432
2433 /* compute missing values, prefer sockets over cores over threads */
2434 if (smp == 0 || sockets == 0) {
2435 sockets = sockets > 0 ? sockets : 1;
2436 cores = cores > 0 ? cores : 1;
2437 threads = threads > 0 ? threads : 1;
2438 if (smp == 0) {
2439 smp = cores * threads * sockets;
dc6b1c09
AP		 2440 }
2441 } else {
2442 if (cores == 0) {
2443 threads = threads > 0 ? threads : 1;
2444 cores = smp / (sockets * threads);
2445 } else {
5cdc9b76 2446 if (sockets) {
dc6b1c09
AP		 2447 threads = smp / (cores * sockets);
2448 }
2449 }
2450 }
2451 smp_cpus = smp;
2452 smp_cores = cores > 0 ? cores : 1;
2453 smp_threads = threads > 0 ? threads : 1;
2454 if (max_cpus == 0)
2455 max_cpus = smp_cpus;
2456}
2457
a594cfbf
FB		 2458/***********************************************************/
2459/* USB devices */
2460
c0f4ce77 2461static int usb_device_add(const char *devname, int is_hotplug)
a594cfbf
FB		 2462{
2463 const char *p;
a5d2f727 2464 USBDevice *dev = NULL;
a594cfbf 2465
a5d2f727 2466 if (!usb_enabled)
a594cfbf
FB		 2467 return -1;
2468
0958b4cc
GH		 2469 /* drivers with .usbdevice_name entry in USBDeviceInfo */
2470 dev = usbdevice_create(devname);
2471 if (dev)
2472 goto done;
2473
a5d2f727 2474 /* the other ones */
a594cfbf
FB		 2475 if (strstart(devname, "host:", &p)) {
2476 dev = usb_host_device_open(p);
dc72ac14
AZ		 2477 } else if (!strcmp(devname, "bt") || strstart(devname, "bt:", &p)) {
2478 dev = usb_bt_init(devname[2] ? hci_init(p) :
2479 bt_new_hci(qemu_find_bt_vlan(0)));
a594cfbf
FB		 2480 } else {
2481 return -1;
2482 }
0d92ed30
PB		 2483 if (!dev)
2484 return -1;
2485
a5d2f727 2486done:
a594cfbf
FB		 2487 return 0;
2488}
2489
1f3870ab
AL		 2490static int usb_device_del(const char *devname)
2491{
2492 int bus_num, addr;
2493 const char *p;
2494
5d0c5750
AL		 2495 if (strstart(devname, "host:", &p))
2496 return usb_host_device_close(p);
2497
a5d2f727 2498 if (!usb_enabled)
1f3870ab
AL		 2499 return -1;
2500
2501 p = strchr(devname, '.');
2502 if (!p)
2503 return -1;
2504 bus_num = strtoul(devname, NULL, 0);
2505 addr = strtoul(p + 1, NULL, 0);
2506
a5d2f727 2507 return usb_device_delete_addr(bus_num, addr);
1f3870ab
AL		 2508}
2509
bd3c948d
GH		 2510static int usb_parse(const char *cmdline)
2511{
59d1c1c2
ST		 2512 int r;
2513 r = usb_device_add(cmdline, 0);
2514 if (r < 0) {
2515 fprintf(stderr, "qemu: could not add USB device '%s'\n", cmdline);
2516 }
2517 return r;
bd3c948d
GH		 2518}
2519
d54908a5 2520void do_usb_add(Monitor *mon, const QDict *qdict)
a594cfbf 2521{
59d1c1c2
ST		 2522 const char *devname = qdict_get_str(qdict, "devname");
2523 if (usb_device_add(devname, 1) < 0) {
2524 qemu_error("could not add USB device '%s'\n", devname);
2525 }
a594cfbf
FB		 2526}
2527
d54908a5 2528void do_usb_del(Monitor *mon, const QDict *qdict)
a594cfbf 2529{
59d1c1c2
ST		 2530 const char *devname = qdict_get_str(qdict, "devname");
2531 if (usb_device_del(devname) < 0) {
2532 qemu_error("could not delete USB device '%s'\n", devname);
2533 }
a594cfbf
FB		 2534}
2535
201a51fc
AZ		 2536/***********************************************************/
2537/* PCMCIA/Cardbus */
2538
2539static struct pcmcia_socket_entry_s {
bc24a225 2540 PCMCIASocket *socket;
201a51fc
AZ		 2541 struct pcmcia_socket_entry_s *next;
2542} *pcmcia_sockets = 0;
2543
bc24a225 2544void pcmcia_socket_register(PCMCIASocket *socket)
201a51fc
AZ		 2545{
2546 struct pcmcia_socket_entry_s *entry;
2547
2548 entry = qemu_malloc(sizeof(struct pcmcia_socket_entry_s));
2549 entry->socket = socket;
2550 entry->next = pcmcia_sockets;
2551 pcmcia_sockets = entry;
2552}
2553
bc24a225 2554void pcmcia_socket_unregister(PCMCIASocket *socket)
201a51fc
AZ		 2555{
2556 struct pcmcia_socket_entry_s *entry, **ptr;
2557
2558 ptr = &pcmcia_sockets;
2559 for (entry = *ptr; entry; ptr = &entry->next, entry = *ptr)
2560 if (entry->socket == socket) {
2561 *ptr = entry->next;
2562 qemu_free(entry);
2563 }
2564}
2565
376253ec 2566void pcmcia_info(Monitor *mon)
201a51fc
AZ		 2567{
2568 struct pcmcia_socket_entry_s *iter;
376253ec 2569
201a51fc 2570 if (!pcmcia_sockets)
376253ec 2571 monitor_printf(mon, "No PCMCIA sockets\n");
201a51fc
AZ		 2572
2573 for (iter = pcmcia_sockets; iter; iter = iter->next)
376253ec
AL		 2574 monitor_printf(mon, "%s: %s\n", iter->socket->slot_string,
2575 iter->socket->attached ? iter->socket->card_string :
2576 "Empty");
201a51fc
AZ		 2577}
2578
2ff89790 2579/***********************************************************/
3023f332
AL		 2580/* register display */
2581
7b5d76da
AL		 2582struct DisplayAllocator default_allocator = {
2583 defaultallocator_create_displaysurface,
2584 defaultallocator_resize_displaysurface,
2585 defaultallocator_free_displaysurface
2586};
2587
3023f332
AL		 2588void register_displaystate(DisplayState *ds)
2589{
2590 DisplayState **s;
2591 s = &display_state;
2592 while (*s != NULL)
2593 s = &(*s)->next;
2594 ds->next = NULL;
2595 *s = ds;
2596}
2597
2598DisplayState *get_displaystate(void)
2599{
2600 return display_state;
2601}
2602
7b5d76da
AL		 2603DisplayAllocator *register_displayallocator(DisplayState *ds, DisplayAllocator *da)
2604{
2605 if(ds->allocator == &default_allocator) ds->allocator = da;
2606 return ds->allocator;
2607}
2608
2ff89790
TS		 2609/* dumb display */
2610
8f391ab4 2611static void dumb_display_init(void)
2ff89790 2612{
8f391ab4 2613 DisplayState *ds = qemu_mallocz(sizeof(DisplayState));
7b5d76da
AL		 2614 ds->allocator = &default_allocator;
2615 ds->surface = qemu_create_displaysurface(ds, 640, 480);
8f391ab4 2616 register_displaystate(ds);
2ff89790
TS		 2617}
2618
8a7ddc38
FB		 2619/***********************************************************/
2620/* I/O handling */
0824d6fc 2621
c4b1fcc0
FB		 2622typedef struct IOHandlerRecord {
2623 int fd;
7c9d8e07
FB		 2624 IOCanRWHandler *fd_read_poll;
2625 IOHandler *fd_read;
2626 IOHandler *fd_write;
cafffd40 2627 int deleted;
c4b1fcc0
FB		 2628 void *opaque;
2629 /* temporary data */
2630 struct pollfd *ufd;
8a7ddc38 2631 struct IOHandlerRecord *next;
c4b1fcc0
FB		 2632} IOHandlerRecord;
2633
8a7ddc38 2634static IOHandlerRecord *first_io_handler;
c4b1fcc0 2635
7c9d8e07
FB		 2636/* XXX: fd_read_poll should be suppressed, but an API change is
2637 necessary in the character devices to suppress fd_can_read(). */
5fafdf24
TS		 2638int qemu_set_fd_handler2(int fd,
2639 IOCanRWHandler *fd_read_poll,
2640 IOHandler *fd_read,
2641 IOHandler *fd_write,
7c9d8e07 2642 void *opaque)
c4b1fcc0 2643{
7c9d8e07 2644 IOHandlerRecord **pioh, *ioh;
c4b1fcc0 2645
7c9d8e07
FB		 2646 if (!fd_read && !fd_write) {
2647 pioh = &first_io_handler;
2648 for(;;) {
2649 ioh = *pioh;
2650 if (ioh == NULL)
2651 break;
2652 if (ioh->fd == fd) {
cafffd40 2653 ioh->deleted = 1;
7c9d8e07
FB		 2654 break;
2655 }
2656 pioh = &ioh->next;
2657 }
2658 } else {
2659 for(ioh = first_io_handler; ioh != NULL; ioh = ioh->next) {
2660 if (ioh->fd == fd)
2661 goto found;
2662 }
2663 ioh = qemu_mallocz(sizeof(IOHandlerRecord));
7c9d8e07
FB		 2664 ioh->next = first_io_handler;
2665 first_io_handler = ioh;
2666 found:
2667 ioh->fd = fd;
2668 ioh->fd_read_poll = fd_read_poll;
2669 ioh->fd_read = fd_read;
2670 ioh->fd_write = fd_write;
2671 ioh->opaque = opaque;
cafffd40 2672 ioh->deleted = 0;
7c9d8e07 2673 }
c4b1fcc0
FB		 2674 return 0;
2675}
2676
5fafdf24
TS		 2677int qemu_set_fd_handler(int fd,
2678 IOHandler *fd_read,
2679 IOHandler *fd_write,
7c9d8e07 2680 void *opaque)
8a7ddc38 2681{
7c9d8e07 2682 return qemu_set_fd_handler2(fd, NULL, fd_read, fd_write, opaque);
8a7ddc38
FB		 2683}
2684
56f3a5d0 2685#ifdef _WIN32
f331110f
FB		 2686/***********************************************************/
2687/* Polling handling */
2688
2689typedef struct PollingEntry {
2690 PollingFunc *func;
2691 void *opaque;
2692 struct PollingEntry *next;
2693} PollingEntry;
2694
2695static PollingEntry *first_polling_entry;
2696
2697int qemu_add_polling_cb(PollingFunc *func, void *opaque)
2698{
2699 PollingEntry **ppe, *pe;
2700 pe = qemu_mallocz(sizeof(PollingEntry));
f331110f
FB		 2701 pe->func = func;
2702 pe->opaque = opaque;
2703 for(ppe = &first_polling_entry; *ppe != NULL; ppe = &(*ppe)->next);
2704 *ppe = pe;
2705 return 0;
2706}
2707
2708void qemu_del_polling_cb(PollingFunc *func, void *opaque)
2709{
2710 PollingEntry **ppe, *pe;
2711 for(ppe = &first_polling_entry; *ppe != NULL; ppe = &(*ppe)->next) {
2712 pe = *ppe;
2713 if (pe->func == func && pe->opaque == opaque) {
2714 *ppe = pe->next;
2715 qemu_free(pe);
2716 break;
2717 }
2718 }
2719}
2720
a18e524a
FB		 2721/***********************************************************/
2722/* Wait objects support */
2723typedef struct WaitObjects {
2724 int num;
2725 HANDLE events[MAXIMUM_WAIT_OBJECTS + 1];
2726 WaitObjectFunc *func[MAXIMUM_WAIT_OBJECTS + 1];
2727 void *opaque[MAXIMUM_WAIT_OBJECTS + 1];
2728} WaitObjects;
2729
2730static WaitObjects wait_objects = {0};
3b46e624 2731
a18e524a
FB		 2732int qemu_add_wait_object(HANDLE handle, WaitObjectFunc *func, void *opaque)
2733{
2734 WaitObjects *w = &wait_objects;
2735
2736 if (w->num >= MAXIMUM_WAIT_OBJECTS)
2737 return -1;
2738 w->events[w->num] = handle;
2739 w->func[w->num] = func;
2740 w->opaque[w->num] = opaque;
2741 w->num++;
2742 return 0;
2743}
2744
2745void qemu_del_wait_object(HANDLE handle, WaitObjectFunc *func, void *opaque)
2746{
2747 int i, found;
2748 WaitObjects *w = &wait_objects;
2749
2750 found = 0;
2751 for (i = 0; i < w->num; i++) {
2752 if (w->events[i] == handle)
2753 found = 1;
2754 if (found) {
2755 w->events[i] = w->events[i + 1];
2756 w->func[i] = w->func[i + 1];
2757 w->opaque[i] = w->opaque[i + 1];
3b46e624 2758 }
a18e524a
FB		 2759 }
2760 if (found)
2761 w->num--;
2762}
2763#endif
2764
8a7ddc38
FB		 2765/***********************************************************/
2766/* ram save/restore */
2767
94fb0909 2768#define RAM_SAVE_FLAG_FULL 0x01 /* Obsolete, not used anymore */
475e4277
AL		 2769#define RAM_SAVE_FLAG_COMPRESS 0x02
2770#define RAM_SAVE_FLAG_MEM_SIZE 0x04
2771#define RAM_SAVE_FLAG_PAGE 0x08
2772#define RAM_SAVE_FLAG_EOS 0x10
2773
2774static int is_dup_page(uint8_t *page, uint8_t ch)
8a7ddc38 2775{
475e4277
AL		 2776 uint32_t val = ch << 24 | ch << 16 | ch << 8 | ch;
2777 uint32_t *array = (uint32_t *)page;
2778 int i;
3b46e624 2779
475e4277
AL		 2780 for (i = 0; i < (TARGET_PAGE_SIZE / 4); i++) {
2781 if (array[i] != val)
2782 return 0;
2783 }
2784
2785 return 1;
2786}
2787
2788static int ram_save_block(QEMUFile *f)
2789{
c227f099
AL		 2790 static ram_addr_t current_addr = 0;
2791 ram_addr_t saved_addr = current_addr;
2792 ram_addr_t addr = 0;
475e4277
AL		 2793 int found = 0;
2794
94a6b54f 2795 while (addr < last_ram_offset) {
475e4277 2796 if (cpu_physical_memory_get_dirty(current_addr, MIGRATION_DIRTY_FLAG)) {
5579c7f3 2797 uint8_t *p;
475e4277
AL		 2798
2799 cpu_physical_memory_reset_dirty(current_addr,
2800 current_addr + TARGET_PAGE_SIZE,
2801 MIGRATION_DIRTY_FLAG);
2802
5579c7f3 2803 p = qemu_get_ram_ptr(current_addr);
475e4277 2804
5579c7f3 2805 if (is_dup_page(p, *p)) {
475e4277 2806 qemu_put_be64(f, current_addr | RAM_SAVE_FLAG_COMPRESS);
5579c7f3 2807 qemu_put_byte(f, *p);
475e4277
AL		 2808 } else {
2809 qemu_put_be64(f, current_addr | RAM_SAVE_FLAG_PAGE);
5579c7f3 2810 qemu_put_buffer(f, p, TARGET_PAGE_SIZE);
c88676f8 2811 }
475e4277
AL		 2812
2813 found = 1;
2814 break;
c88676f8 2815 }
475e4277 2816 addr += TARGET_PAGE_SIZE;
94a6b54f 2817 current_addr = (saved_addr + addr) % last_ram_offset;
8a7ddc38 2818 }
475e4277
AL		 2819
2820 return found;
8a7ddc38
FB		 2821}
2822
84307938 2823static uint64_t bytes_transferred;
475e4277 2824
c227f099 2825static ram_addr_t ram_save_remaining(void)
475e4277 2826{
c227f099
AL		 2827 ram_addr_t addr;
2828 ram_addr_t count = 0;
475e4277 2829
94a6b54f 2830 for (addr = 0; addr < last_ram_offset; addr += TARGET_PAGE_SIZE) {
475e4277
AL		 2831 if (cpu_physical_memory_get_dirty(addr, MIGRATION_DIRTY_FLAG))
2832 count++;
2833 }
2834
2835 return count;
2836}
2837
9f9e28cd
GC		 2838uint64_t ram_bytes_remaining(void)
2839{
2840 return ram_save_remaining() * TARGET_PAGE_SIZE;
2841}
2842
2843uint64_t ram_bytes_transferred(void)
2844{
2845 return bytes_transferred;
2846}
2847
2848uint64_t ram_bytes_total(void)
2849{
2850 return last_ram_offset;
2851}
2852
f327aa0c 2853static int ram_save_live(Monitor *mon, QEMUFile *f, int stage, void *opaque)
475e4277 2854{
c227f099 2855 ram_addr_t addr;
a0a3fd60
GC		 2856 uint64_t bytes_transferred_last;
2857 double bwidth = 0;
2858 uint64_t expected_time = 0;
475e4277 2859
4ec7fcc7
JK		 2860 if (stage < 0) {
2861 cpu_physical_memory_set_dirty_tracking(0);
2862 return 0;
2863 }
2864
9fa06385 2865 if (cpu_physical_sync_dirty_bitmap(0, TARGET_PHYS_ADDR_MAX) != 0) {
b0a46a33
JK		 2866 qemu_file_set_error(f);
2867 return 0;
2868 }
2869
475e4277 2870 if (stage == 1) {
84307938
JK		 2871 bytes_transferred = 0;
2872
475e4277 2873 /* Make sure all dirty bits are set */
94a6b54f 2874 for (addr = 0; addr < last_ram_offset; addr += TARGET_PAGE_SIZE) {
475e4277
AL		 2875 if (!cpu_physical_memory_get_dirty(addr, MIGRATION_DIRTY_FLAG))
2876 cpu_physical_memory_set_dirty(addr);
2877 }
b0a46a33 2878
475e4277
AL		 2879 /* Enable dirty memory tracking */
2880 cpu_physical_memory_set_dirty_tracking(1);
2881
94a6b54f 2882 qemu_put_be64(f, last_ram_offset | RAM_SAVE_FLAG_MEM_SIZE);
475e4277
AL		 2883 }
2884
a0a3fd60 2885 bytes_transferred_last = bytes_transferred;
41c872b6 2886 bwidth = qemu_get_clock_ns(rt_clock);
a0a3fd60 2887
475e4277
AL		 2888 while (!qemu_file_rate_limit(f)) {
2889 int ret;
2890
2891 ret = ram_save_block(f);
9f9e28cd 2892 bytes_transferred += ret * TARGET_PAGE_SIZE;
475e4277
AL		 2893 if (ret == 0) /* no more blocks */
2894 break;
2895 }
2896
41c872b6 2897 bwidth = qemu_get_clock_ns(rt_clock) - bwidth;
a0a3fd60
GC		 2898 bwidth = (bytes_transferred - bytes_transferred_last) / bwidth;
2899
2900 /* if we haven't transferred anything this round, force expected_time to a
2901 * a very high value, but without crashing */
2902 if (bwidth == 0)
2903 bwidth = 0.000001;
2904
475e4277 2905 /* try transferring iterative blocks of memory */
475e4277 2906 if (stage == 3) {
475e4277 2907 /* flush all remaining blocks regardless of rate limiting */
9f9e28cd
GC		 2908 while (ram_save_block(f) != 0) {
2909 bytes_transferred += TARGET_PAGE_SIZE;
2910 }
8215e914 2911 cpu_physical_memory_set_dirty_tracking(0);
475e4277
AL		 2912 }
2913
2914 qemu_put_be64(f, RAM_SAVE_FLAG_EOS);
2915
a0a3fd60
GC		 2916 expected_time = ram_save_remaining() * TARGET_PAGE_SIZE / bwidth;
2917
2918 return (stage == 2) && (expected_time <= migrate_max_downtime());
475e4277
AL		 2919}
2920
475e4277
AL		 2921static int ram_load(QEMUFile *f, void *opaque, int version_id)
2922{
c227f099 2923 ram_addr_t addr;
475e4277
AL		 2924 int flags;
2925
475e4277
AL		 2926 if (version_id != 3)
2927 return -EINVAL;
2928
2929 do {
2930 addr = qemu_get_be64(f);
2931
2932 flags = addr & ~TARGET_PAGE_MASK;
2933 addr &= TARGET_PAGE_MASK;
2934
2935 if (flags & RAM_SAVE_FLAG_MEM_SIZE) {
94a6b54f 2936 if (addr != last_ram_offset)
475e4277
AL		 2937 return -EINVAL;
2938 }
2939
475e4277
AL		 2940 if (flags & RAM_SAVE_FLAG_COMPRESS) {
2941 uint8_t ch = qemu_get_byte(f);
779c6bef
AL		 2942 memset(qemu_get_ram_ptr(addr), ch, TARGET_PAGE_SIZE);
2943#ifndef _WIN32
30868442
AL		 2944 if (ch == 0 &&
2945 (!kvm_enabled() || kvm_has_sync_mmu())) {
2946 madvise(qemu_get_ram_ptr(addr), TARGET_PAGE_SIZE, MADV_DONTNEED);
779c6bef 2947 }
30868442 2948#endif
9a743e5b 2949 } else if (flags & RAM_SAVE_FLAG_PAGE) {
5579c7f3 2950 qemu_get_buffer(f, qemu_get_ram_ptr(addr), TARGET_PAGE_SIZE);
9a743e5b
JK		 2951 }
2952 if (qemu_file_has_error(f)) {
2953 return -EIO;
2954 }
475e4277
AL		 2955 } while (!(flags & RAM_SAVE_FLAG_EOS));
2956
8a7ddc38
FB		 2957 return 0;
2958}
2959
9e472e10
AL		 2960void qemu_service_io(void)
2961{
d9f75a4e 2962 qemu_notify_event();
9e472e10
AL		 2963}
2964
cc1daa40
FB		 2965/***********************************************************/
2966/* machine registration */
2967
bdaf78e0 2968static QEMUMachine *first_machine = NULL;
6f338c34 2969QEMUMachine *current_machine = NULL;
cc1daa40
FB		 2970
2971int qemu_register_machine(QEMUMachine *m)
2972{
2973 QEMUMachine **pm;
2974 pm = &first_machine;
2975 while (*pm != NULL)
2976 pm = &(*pm)->next;
2977 m->next = NULL;
2978 *pm = m;
2979 return 0;
2980}
2981
9596ebb7 2982static QEMUMachine *find_machine(const char *name)
cc1daa40
FB		 2983{
2984 QEMUMachine *m;
2985
2986 for(m = first_machine; m != NULL; m = m->next) {
2987 if (!strcmp(m->name, name))
2988 return m;
3f6599e6
MM		 2989 if (m->alias && !strcmp(m->alias, name))
2990 return m;
cc1daa40
FB		 2991 }
2992 return NULL;
2993}
2994
0c257437
AL		 2995static QEMUMachine *find_default_machine(void)
2996{
2997 QEMUMachine *m;
2998
2999 for(m = first_machine; m != NULL; m = m->next) {
3000 if (m->is_default) {
3001 return m;
3002 }
3003 }
3004 return NULL;
3005}
3006
8a7ddc38
FB		 3007/***********************************************************/
3008/* main execution loop */
3009
9596ebb7 3010static void gui_update(void *opaque)
8a7ddc38 3011{
7d957bd8 3012 uint64_t interval = GUI_REFRESH_INTERVAL;
740733bb 3013 DisplayState *ds = opaque;
7d957bd8
AL		 3014 DisplayChangeListener *dcl = ds->listeners;
3015
62a2744c 3016 qemu_flush_coalesced_mmio_buffer();
7d957bd8
AL		 3017 dpy_refresh(ds);
3018
3019 while (dcl != NULL) {
3020 if (dcl->gui_timer_interval &&
3021 dcl->gui_timer_interval < interval)
3022 interval = dcl->gui_timer_interval;
3023 dcl = dcl->next;
3024 }
3025 qemu_mod_timer(ds->gui_timer, interval + qemu_get_clock(rt_clock));
8a7ddc38
FB		 3026}
3027
9043b62d
BS		 3028static void nographic_update(void *opaque)
3029{
3030 uint64_t interval = GUI_REFRESH_INTERVAL;
3031
62a2744c 3032 qemu_flush_coalesced_mmio_buffer();
9043b62d
BS		 3033 qemu_mod_timer(nographic_timer, interval + qemu_get_clock(rt_clock));
3034}
3035
0bd48850
FB		 3036struct vm_change_state_entry {
3037 VMChangeStateHandler *cb;
3038 void *opaque;
72cf2d4f 3039 QLIST_ENTRY (vm_change_state_entry) entries;
0bd48850
FB		 3040};
3041
72cf2d4f 3042static QLIST_HEAD(vm_change_state_head, vm_change_state_entry) vm_change_state_head;
0bd48850
FB		 3043
3044VMChangeStateEntry *qemu_add_vm_change_state_handler(VMChangeStateHandler *cb,
3045 void *opaque)
3046{
3047 VMChangeStateEntry *e;
3048
3049 e = qemu_mallocz(sizeof (*e));
0bd48850
FB		 3050
3051 e->cb = cb;
3052 e->opaque = opaque;
72cf2d4f 3053 QLIST_INSERT_HEAD(&vm_change_state_head, e, entries);
0bd48850
FB		 3054 return e;
3055}
3056
3057void qemu_del_vm_change_state_handler(VMChangeStateEntry *e)
3058{
72cf2d4f 3059 QLIST_REMOVE (e, entries);
0bd48850
FB		 3060 qemu_free (e);
3061}
3062
9781e040 3063static void vm_state_notify(int running, int reason)
0bd48850
FB		 3064{
3065 VMChangeStateEntry *e;
3066
3067 for (e = vm_change_state_head.lh_first; e; e = e->entries.le_next) {
9781e040 3068 e->cb(e->opaque, running, reason);
0bd48850
FB		 3069 }
3070}
3071
d6dc3d42
AL		 3072static void resume_all_vcpus(void);
3073static void pause_all_vcpus(void);
3074
8a7ddc38
FB		 3075void vm_start(void)
3076{
3077 if (!vm_running) {
3078 cpu_enable_ticks();
3079 vm_running = 1;
9781e040 3080 vm_state_notify(1, 0);
efe75411 3081 qemu_rearm_alarm_timer(alarm_timer);
d6dc3d42 3082 resume_all_vcpus();
8a7ddc38
FB		 3083 }
3084}
3085
bb0c6722
FB		 3086/* reset/shutdown handler */
3087
3088typedef struct QEMUResetEntry {
72cf2d4f 3089 QTAILQ_ENTRY(QEMUResetEntry) entry;
bb0c6722
FB		 3090 QEMUResetHandler *func;
3091 void *opaque;
bb0c6722
FB		 3092} QEMUResetEntry;
3093
72cf2d4f
BS		 3094static QTAILQ_HEAD(reset_handlers, QEMUResetEntry) reset_handlers =
3095 QTAILQ_HEAD_INITIALIZER(reset_handlers);
bb0c6722
FB		 3096static int reset_requested;
3097static int shutdown_requested;
3475187d 3098static int powerdown_requested;
e568902a 3099static int debug_requested;
6e29f5da 3100static int vmstop_requested;
bb0c6722 3101
cf7a2fe2
AJ		 3102int qemu_shutdown_requested(void)
3103{
3104 int r = shutdown_requested;
3105 shutdown_requested = 0;
3106 return r;
3107}
3108
3109int qemu_reset_requested(void)
3110{
3111 int r = reset_requested;
3112 reset_requested = 0;
3113 return r;
3114}
3115
3116int qemu_powerdown_requested(void)
3117{
3118 int r = powerdown_requested;
3119 powerdown_requested = 0;
3120 return r;
3121}
3122
e568902a
AL		 3123static int qemu_debug_requested(void)
3124{
3125 int r = debug_requested;
3126 debug_requested = 0;
3127 return r;
3128}
3129
6e29f5da
AL		 3130static int qemu_vmstop_requested(void)
3131{
3132 int r = vmstop_requested;
3133 vmstop_requested = 0;
3134 return r;
3135}
3136
3137static void do_vm_stop(int reason)
3138{
3139 if (vm_running) {
3140 cpu_disable_ticks();
3141 vm_running = 0;
d6dc3d42 3142 pause_all_vcpus();
6e29f5da
AL		 3143 vm_state_notify(0, reason);
3144 }
3145}
3146
a08d4367 3147void qemu_register_reset(QEMUResetHandler *func, void *opaque)
bb0c6722 3148{
55ddfe8e 3149 QEMUResetEntry *re = qemu_mallocz(sizeof(QEMUResetEntry));
bb0c6722 3150
bb0c6722
FB		 3151 re->func = func;
3152 re->opaque = opaque;
72cf2d4f 3153 QTAILQ_INSERT_TAIL(&reset_handlers, re, entry);
bb0c6722
FB		 3154}
3155
dda9b29f 3156void qemu_unregister_reset(QEMUResetHandler *func, void *opaque)
bb0c6722
FB		 3157{
3158 QEMUResetEntry *re;
3159
72cf2d4f 3160 QTAILQ_FOREACH(re, &reset_handlers, entry) {
dda9b29f 3161 if (re->func == func && re->opaque == opaque) {
72cf2d4f 3162 QTAILQ_REMOVE(&reset_handlers, re, entry);
dda9b29f
JK		 3163 qemu_free(re);
3164 return;
3165 }
3166 }
3167}
3168
3169void qemu_system_reset(void)
3170{
3171 QEMUResetEntry *re, *nre;
3172
3173 /* reset all devices */
72cf2d4f 3174 QTAILQ_FOREACH_SAFE(re, &reset_handlers, entry, nre) {
bb0c6722
FB		 3175 re->func(re->opaque);
3176 }
3177}
3178
3179void qemu_system_reset_request(void)
3180{
d1beab82
FB		 3181 if (no_reboot) {
3182 shutdown_requested = 1;
3183 } else {
3184 reset_requested = 1;
3185 }
d9f75a4e 3186 qemu_notify_event();
bb0c6722
FB		 3187}
3188
3189void qemu_system_shutdown_request(void)
3190{
3191 shutdown_requested = 1;
d9f75a4e 3192 qemu_notify_event();
bb0c6722
FB		 3193}
3194
3475187d
FB		 3195void qemu_system_powerdown_request(void)
3196{
3197 powerdown_requested = 1;
d9f75a4e
AL		 3198 qemu_notify_event();
3199}
3200
d6dc3d42
AL		 3201#ifdef CONFIG_IOTHREAD
3202static void qemu_system_vmstop_request(int reason)
d9f75a4e 3203{
d6dc3d42
AL		 3204 vmstop_requested = reason;
3205 qemu_notify_event();
bb0c6722 3206}
d6dc3d42 3207#endif
bb0c6722 3208
50317c7f
AL		 3209#ifndef _WIN32
3210static int io_thread_fd = -1;
3211
3212static void qemu_event_increment(void)
3fcf7b6b 3213{
50317c7f 3214 static const char byte = 0;
dc330e28 3215 ssize_t ret;
50317c7f
AL		 3216
3217 if (io_thread_fd == -1)
3218 return;
3219
652ce2d4
PB		 3220 do {
3221 ret = write(io_thread_fd, &byte, sizeof(byte));
3222 } while (ret < 0 && errno == EINTR);
3223
3224 /* EAGAIN is fine, a read must be pending. */
3225 if (ret < 0 && errno != EAGAIN) {
dc330e28
KS		 3226 fprintf(stderr, "qemu_event_increment: write() filed: %s\n",
3227 strerror(errno));
3228 exit (1);
3229 }
50317c7f
AL		 3230}
3231
3232static void qemu_event_read(void *opaque)
3233{
3234 int fd = (unsigned long)opaque;
3235 ssize_t len;
1d0f0d91 3236 char buffer[512];
50317c7f
AL		 3237
3238 /* Drain the notify pipe */
3239 do {
50317c7f 3240 len = read(fd, buffer, sizeof(buffer));
1d0f0d91 3241 } while ((len == -1 && errno == EINTR) || len == sizeof(buffer));
50317c7f
AL		 3242}
3243
3244static int qemu_event_init(void)
3245{
3246 int err;
3247 int fds[2];
3248
40ff6d7e 3249 err = qemu_pipe(fds);
50317c7f
AL		 3250 if (err == -1)
3251 return -errno;
3252
3253 err = fcntl_setfl(fds[0], O_NONBLOCK);
3254 if (err < 0)
3255 goto fail;
3256
3257 err = fcntl_setfl(fds[1], O_NONBLOCK);
3258 if (err < 0)
3259 goto fail;
3260
3261 qemu_set_fd_handler2(fds[0], NULL, qemu_event_read, NULL,
3262 (void *)(unsigned long)fds[0]);
3263
3264 io_thread_fd = fds[1];
a7e21219
JK		 3265 return 0;
3266
50317c7f
AL		 3267fail:
3268 close(fds[0]);
3269 close(fds[1]);
3270 return err;
3271}
3272#else
3273HANDLE qemu_event_handle;
3274
3275static void dummy_event_handler(void *opaque)
3276{
3277}
3278
3279static int qemu_event_init(void)
3280{
3281 qemu_event_handle = CreateEvent(NULL, FALSE, FALSE, NULL);
3282 if (!qemu_event_handle) {
20889d4e 3283 fprintf(stderr, "Failed CreateEvent: %ld\n", GetLastError());
50317c7f
AL		 3284 return -1;
3285 }
3286 qemu_add_wait_object(qemu_event_handle, dummy_event_handler, NULL);
3fcf7b6b
AL		 3287 return 0;
3288}
3289
50317c7f
AL		 3290static void qemu_event_increment(void)
3291{
de1c90cf 3292 if (!SetEvent(qemu_event_handle)) {
20889d4e 3293 fprintf(stderr, "qemu_event_increment: SetEvent failed: %ld\n",
de1c90cf 3294 GetLastError());
3295 exit (1);
3296 }
50317c7f
AL		 3297}
3298#endif
3299
d6dc3d42
AL		 3300static int cpu_can_run(CPUState *env)
3301{
3302 if (env->stop)
3303 return 0;
3304 if (env->stopped)
3305 return 0;
c5f32c99
MT		 3306 if (!vm_running)
3307 return 0;
d6dc3d42
AL		 3308 return 1;
3309}
3310
3311#ifndef CONFIG_IOTHREAD
50317c7f
AL		 3312static int qemu_init_main_loop(void)
3313{
3314 return qemu_event_init();
3315}
3316
0bf46a40
AL		 3317void qemu_init_vcpu(void *_env)
3318{
3319 CPUState *env = _env;
3320
dc6b1c09
AP		 3321 env->nr_cores = smp_cores;
3322 env->nr_threads = smp_threads;
3f7638ec
JD		 3323 if (kvm_enabled())
3324 kvm_init_vcpu(env);
0bf46a40
AL		 3325 return;
3326}
3327
8edac960
AL		 3328int qemu_cpu_self(void *env)
3329{
3330 return 1;
3331}
3332
d6dc3d42
AL		 3333static void resume_all_vcpus(void)
3334{
3335}
3336
3337static void pause_all_vcpus(void)
3338{
3339}
3340
8edac960
AL		 3341void qemu_cpu_kick(void *env)
3342{
3343 return;
3344}
3345
d6dc3d42
AL		 3346void qemu_notify_event(void)
3347{
3348 CPUState *env = cpu_single_env;
3349
3350 if (env) {
3351 cpu_exit(env);
4a1418e0 3352 }
d6dc3d42
AL		 3353}
3354
d549db5a
GC		 3355void qemu_mutex_lock_iothread(void) {}
3356void qemu_mutex_unlock_iothread(void) {}
4870852c 3357
6e29f5da
AL		 3358void vm_stop(int reason)
3359{
3360 do_vm_stop(reason);
3361}
3362
d6dc3d42
AL		 3363#else /* CONFIG_IOTHREAD */
3364
3365#include "qemu-thread.h"
3366
3367QemuMutex qemu_global_mutex;
3368static QemuMutex qemu_fair_mutex;
3369
3370static QemuThread io_thread;
3371
3372static QemuThread *tcg_cpu_thread;
3373static QemuCond *tcg_halt_cond;
3374
3375static int qemu_system_ready;
3376/* cpu creation */
3377static QemuCond qemu_cpu_cond;
3378/* system init */
3379static QemuCond qemu_system_cond;
3380static QemuCond qemu_pause_cond;
3381
3382static void block_io_signals(void);
3383static void unblock_io_signals(void);
3384static int tcg_has_work(void);
3385
3386static int qemu_init_main_loop(void)
3387{
3388 int ret;
3389
3390 ret = qemu_event_init();
3391 if (ret)
3392 return ret;
3393
3394 qemu_cond_init(&qemu_pause_cond);
3395 qemu_mutex_init(&qemu_fair_mutex);
3396 qemu_mutex_init(&qemu_global_mutex);
3397 qemu_mutex_lock(&qemu_global_mutex);
3398
3399 unblock_io_signals();
3400 qemu_thread_self(&io_thread);
3401
3402 return 0;
3403}
3404
3405static void qemu_wait_io_event(CPUState *env)
3406{
3407 while (!tcg_has_work())
3408 qemu_cond_timedwait(env->halt_cond, &qemu_global_mutex, 1000);
3409
3410 qemu_mutex_unlock(&qemu_global_mutex);
3411
3412 /*
3413 * Users of qemu_global_mutex can be starved, having no chance
3414 * to acquire it since this path will get to it first.
3415 * So use another lock to provide fairness.
3416 */
3417 qemu_mutex_lock(&qemu_fair_mutex);
3418 qemu_mutex_unlock(&qemu_fair_mutex);
3419
3420 qemu_mutex_lock(&qemu_global_mutex);
3421 if (env->stop) {
3422 env->stop = 0;
3423 env->stopped = 1;
3424 qemu_cond_signal(&qemu_pause_cond);
3425 }
3426}
3427
3428static int qemu_cpu_exec(CPUState *env);
3429
3430static void *kvm_cpu_thread_fn(void *arg)
3431{
3432 CPUState *env = arg;
3433
3434 block_io_signals();
3435 qemu_thread_self(env->thread);
321c1cb1
JCD		 3436 if (kvm_enabled())
3437 kvm_init_vcpu(env);
d6dc3d42
AL		 3438
3439 /* signal CPU creation */
3440 qemu_mutex_lock(&qemu_global_mutex);
3441 env->created = 1;
3442 qemu_cond_signal(&qemu_cpu_cond);
3443
3444 /* and wait for machine initialization */
3445 while (!qemu_system_ready)
3446 qemu_cond_timedwait(&qemu_system_cond, &qemu_global_mutex, 100);
3447
3448 while (1) {
3449 if (cpu_can_run(env))
3450 qemu_cpu_exec(env);
1c3173b9 3451 qemu_wait_io_event(env);
d6dc3d42
AL		 3452 }
3453
3454 return NULL;
3455}
3456
3457static void tcg_cpu_exec(void);
3458
3459static void *tcg_cpu_thread_fn(void *arg)
3460{
3461 CPUState *env = arg;
3462
3463 block_io_signals();
3464 qemu_thread_self(env->thread);
3465
3466 /* signal CPU creation */
3467 qemu_mutex_lock(&qemu_global_mutex);
3468 for (env = first_cpu; env != NULL; env = env->next_cpu)
3469 env->created = 1;
3470 qemu_cond_signal(&qemu_cpu_cond);
3471
3472 /* and wait for machine initialization */
3473 while (!qemu_system_ready)
3474 qemu_cond_timedwait(&qemu_system_cond, &qemu_global_mutex, 100);
3475
3476 while (1) {
3477 tcg_cpu_exec();
3478 qemu_wait_io_event(cur_cpu);
3479 }
3480
3481 return NULL;
3482}
3483
3484void qemu_cpu_kick(void *_env)
3485{
3486 CPUState *env = _env;
3487 qemu_cond_broadcast(env->halt_cond);
3488 if (kvm_enabled())
3489 qemu_thread_signal(env->thread, SIGUSR1);
3490}
3491
e5bc201d 3492int qemu_cpu_self(void *_env)
d6dc3d42 3493{
e5bc201d
GC		 3494 CPUState *env = _env;
3495 QemuThread this;
3496
3497 qemu_thread_self(&this);
3498
3499 return qemu_thread_equal(&this, env->thread);
d6dc3d42
AL		 3500}
3501
3502static void cpu_signal(int sig)
3503{
3504 if (cpu_single_env)
3505 cpu_exit(cpu_single_env);
3506}
3507
3508static void block_io_signals(void)
3509{
3510 sigset_t set;
3511 struct sigaction sigact;
3512
3513 sigemptyset(&set);
3514 sigaddset(&set, SIGUSR2);
3515 sigaddset(&set, SIGIO);
3516 sigaddset(&set, SIGALRM);
3517 pthread_sigmask(SIG_BLOCK, &set, NULL);
3518
3519 sigemptyset(&set);
3520 sigaddset(&set, SIGUSR1);
3521 pthread_sigmask(SIG_UNBLOCK, &set, NULL);
3522
3523 memset(&sigact, 0, sizeof(sigact));
3524 sigact.sa_handler = cpu_signal;
3525 sigaction(SIGUSR1, &sigact, NULL);
3526}
3527
3528static void unblock_io_signals(void)
3529{
3530 sigset_t set;
3531
3532 sigemptyset(&set);
3533 sigaddset(&set, SIGUSR2);
3534 sigaddset(&set, SIGIO);
3535 sigaddset(&set, SIGALRM);
3536 pthread_sigmask(SIG_UNBLOCK, &set, NULL);
3537
3538 sigemptyset(&set);
3539 sigaddset(&set, SIGUSR1);
3540 pthread_sigmask(SIG_BLOCK, &set, NULL);
3541}
3542
3543static void qemu_signal_lock(unsigned int msecs)
3544{
3545 qemu_mutex_lock(&qemu_fair_mutex);
3546
3547 while (qemu_mutex_trylock(&qemu_global_mutex)) {
3548 qemu_thread_signal(tcg_cpu_thread, SIGUSR1);
3549 if (!qemu_mutex_timedlock(&qemu_global_mutex, msecs))
3550 break;
3551 }
3552 qemu_mutex_unlock(&qemu_fair_mutex);
3553}
3554
d549db5a 3555void qemu_mutex_lock_iothread(void)
d6dc3d42
AL		 3556{
3557 if (kvm_enabled()) {
3558 qemu_mutex_lock(&qemu_fair_mutex);
3559 qemu_mutex_lock(&qemu_global_mutex);
3560 qemu_mutex_unlock(&qemu_fair_mutex);
3561 } else
3562 qemu_signal_lock(100);
3563}
3564
d549db5a 3565void qemu_mutex_unlock_iothread(void)
d6dc3d42
AL		 3566{
3567 qemu_mutex_unlock(&qemu_global_mutex);
3568}
3569
3570static int all_vcpus_paused(void)
3571{
3572 CPUState *penv = first_cpu;
3573
3574 while (penv) {
3575 if (!penv->stopped)
3576 return 0;
3577 penv = (CPUState *)penv->next_cpu;
3578 }
3579
3580 return 1;
3581}
3582
3583static void pause_all_vcpus(void)
3584{
3585 CPUState *penv = first_cpu;
3586
3587 while (penv) {
3588 penv->stop = 1;
3589 qemu_thread_signal(penv->thread, SIGUSR1);
3590 qemu_cpu_kick(penv);
3591 penv = (CPUState *)penv->next_cpu;
3592 }
3593
3594 while (!all_vcpus_paused()) {
3595 qemu_cond_timedwait(&qemu_pause_cond, &qemu_global_mutex, 100);
3596 penv = first_cpu;
3597 while (penv) {
3598 qemu_thread_signal(penv->thread, SIGUSR1);
3599 penv = (CPUState *)penv->next_cpu;
3600 }
3601 }
3602}
3603
3604static void resume_all_vcpus(void)
3605{
3606 CPUState *penv = first_cpu;
3607
3608 while (penv) {
3609 penv->stop = 0;
3610 penv->stopped = 0;
3611 qemu_thread_signal(penv->thread, SIGUSR1);
3612 qemu_cpu_kick(penv);
3613 penv = (CPUState *)penv->next_cpu;
3614 }
3615}
3616
3617static void tcg_init_vcpu(void *_env)
3618{
3619 CPUState *env = _env;
3620 /* share a single thread for all cpus with TCG */
3621 if (!tcg_cpu_thread) {
3622 env->thread = qemu_mallocz(sizeof(QemuThread));
3623 env->halt_cond = qemu_mallocz(sizeof(QemuCond));
3624 qemu_cond_init(env->halt_cond);
3625 qemu_thread_create(env->thread, tcg_cpu_thread_fn, env);
3626 while (env->created == 0)
3627 qemu_cond_timedwait(&qemu_cpu_cond, &qemu_global_mutex, 100);
3628 tcg_cpu_thread = env->thread;
3629 tcg_halt_cond = env->halt_cond;
3630 } else {
3631 env->thread = tcg_cpu_thread;
3632 env->halt_cond = tcg_halt_cond;
3633 }
3634}
3635
3636static void kvm_start_vcpu(CPUState *env)
3637{
d6dc3d42
AL		 3638 env->thread = qemu_mallocz(sizeof(QemuThread));
3639 env->halt_cond = qemu_mallocz(sizeof(QemuCond));
3640 qemu_cond_init(env->halt_cond);
3641 qemu_thread_create(env->thread, kvm_cpu_thread_fn, env);
3642 while (env->created == 0)
3643 qemu_cond_timedwait(&qemu_cpu_cond, &qemu_global_mutex, 100);
3644}
3645
3646void qemu_init_vcpu(void *_env)
3647{
3648 CPUState *env = _env;
3649
3f7638ec
JD		 3650 env->nr_cores = smp_cores;
3651 env->nr_threads = smp_threads;
d6dc3d42
AL		 3652 if (kvm_enabled())
3653 kvm_start_vcpu(env);
3654 else
3655 tcg_init_vcpu(env);
3656}
3657
3658void qemu_notify_event(void)
3659{
3660 qemu_event_increment();
3661}
3662
3663void vm_stop(int reason)
3664{
3665 QemuThread me;
3666 qemu_thread_self(&me);
3667
3668 if (!qemu_thread_equal(&me, &io_thread)) {
3669 qemu_system_vmstop_request(reason);
3670 /*
3671 * FIXME: should not return to device code in case
3672 * vm_stop() has been requested.
3673 */
3674 if (cpu_single_env) {
3675 cpu_exit(cpu_single_env);
3676 cpu_single_env->stop = 1;
3677 }
3678 return;
3679 }
3680 do_vm_stop(reason);
3681}
3682
3683#endif
3684
3685
877cf882 3686#ifdef _WIN32
69d6451c 3687static void host_main_loop_wait(int *timeout)
56f3a5d0
AL		 3688{
3689 int ret, ret2, i;
f331110f
FB		 3690 PollingEntry *pe;
3691
c4b1fcc0 3692
f331110f
FB		 3693 /* XXX: need to suppress polling by better using win32 events */
3694 ret = 0;
3695 for(pe = first_polling_entry; pe != NULL; pe = pe->next) {
3696 ret |= pe->func(pe->opaque);
3697 }
e6b1e558 3698 if (ret == 0) {
a18e524a
FB		 3699 int err;
3700 WaitObjects *w = &wait_objects;
3b46e624 3701
56f3a5d0 3702 ret = WaitForMultipleObjects(w->num, w->events, FALSE, *timeout);
a18e524a
FB		 3703 if (WAIT_OBJECT_0 + 0 <= ret && ret <= WAIT_OBJECT_0 + w->num - 1) {
3704 if (w->func[ret - WAIT_OBJECT_0])
3705 w->func[ret - WAIT_OBJECT_0](w->opaque[ret - WAIT_OBJECT_0]);
3b46e624 3706
5fafdf24 3707 /* Check for additional signaled events */
e6b1e558 3708 for(i = (ret - WAIT_OBJECT_0 + 1); i < w->num; i++) {
3b46e624 3709
e6b1e558
TS		 3710 /* Check if event is signaled */
3711 ret2 = WaitForSingleObject(w->events[i], 0);
3712 if(ret2 == WAIT_OBJECT_0) {
3713 if (w->func[i])
3714 w->func[i](w->opaque[i]);
3715 } else if (ret2 == WAIT_TIMEOUT) {
3716 } else {
3717 err = GetLastError();
3718 fprintf(stderr, "WaitForSingleObject error %d %d\n", i, err);
3b46e624
TS		 3719 }
3720 }
a18e524a
FB		 3721 } else if (ret == WAIT_TIMEOUT) {
3722 } else {
3723 err = GetLastError();
e6b1e558 3724 fprintf(stderr, "WaitForMultipleObjects error %d %d\n", ret, err);
a18e524a 3725 }
f331110f 3726 }
56f3a5d0
AL		 3727
3728 *timeout = 0;
3729}
3730#else
69d6451c 3731static void host_main_loop_wait(int *timeout)
56f3a5d0
AL		 3732{
3733}
fd1dff4b 3734#endif
56f3a5d0
AL		 3735
3736void main_loop_wait(int timeout)
3737{
3738 IOHandlerRecord *ioh;
3739 fd_set rfds, wfds, xfds;
3740 int ret, nfds;
3741 struct timeval tv;
3742
3743 qemu_bh_update_timeout(&timeout);
3744
3745 host_main_loop_wait(&timeout);
3746
fd1dff4b
FB		 3747 /* poll any events */
3748 /* XXX: separate device handlers from system ones */
6abfbd79 3749 nfds = -1;
fd1dff4b
FB		 3750 FD_ZERO(&rfds);
3751 FD_ZERO(&wfds);
e035649e 3752 FD_ZERO(&xfds);
fd1dff4b 3753 for(ioh = first_io_handler; ioh != NULL; ioh = ioh->next) {
cafffd40
TS		 3754 if (ioh->deleted)
3755 continue;
fd1dff4b
FB		 3756 if (ioh->fd_read &&
3757 (!ioh->fd_read_poll ||
3758 ioh->fd_read_poll(ioh->opaque) != 0)) {
3759 FD_SET(ioh->fd, &rfds);
3760 if (ioh->fd > nfds)
3761 nfds = ioh->fd;
3762 }
3763 if (ioh->fd_write) {
3764 FD_SET(ioh->fd, &wfds);
3765 if (ioh->fd > nfds)
3766 nfds = ioh->fd;
3767 }
3768 }
3b46e624 3769
56f3a5d0
AL		 3770 tv.tv_sec = timeout / 1000;
3771 tv.tv_usec = (timeout % 1000) * 1000;
3772
d918f23e
JK		 3773 slirp_select_fill(&nfds, &rfds, &wfds, &xfds);
3774
4870852c 3775 qemu_mutex_unlock_iothread();
e035649e 3776 ret = select(nfds + 1, &rfds, &wfds, &xfds, &tv);
4870852c 3777 qemu_mutex_lock_iothread();
fd1dff4b 3778 if (ret > 0) {
cafffd40
TS		 3779 IOHandlerRecord **pioh;
3780
3781 for(ioh = first_io_handler; ioh != NULL; ioh = ioh->next) {
6ab43fdc 3782 if (!ioh->deleted && ioh->fd_read && FD_ISSET(ioh->fd, &rfds)) {
fd1dff4b 3783 ioh->fd_read(ioh->opaque);
7c9d8e07 3784 }
6ab43fdc 3785 if (!ioh->deleted && ioh->fd_write && FD_ISSET(ioh->fd, &wfds)) {
fd1dff4b 3786 ioh->fd_write(ioh->opaque);
c4b1fcc0 3787 }
b4608c04 3788 }
cafffd40
TS		 3789
3790 /* remove deleted IO handlers */
3791 pioh = &first_io_handler;
3792 while (*pioh) {
3793 ioh = *pioh;
3794 if (ioh->deleted) {
3795 *pioh = ioh->next;
3796 qemu_free(ioh);
5fafdf24 3797 } else
cafffd40
TS		 3798 pioh = &ioh->next;
3799 }
fd1dff4b 3800 }
d918f23e
JK		 3801
3802 slirp_select_poll(&rfds, &wfds, &xfds, (ret < 0));
b4608c04 3803
50317c7f
AL		 3804 /* rearm timer, if not periodic */
3805 if (alarm_timer->flags & ALARM_FLAG_EXPIRED) {
3806 alarm_timer->flags &= ~ALARM_FLAG_EXPIRED;
3807 qemu_rearm_alarm_timer(alarm_timer);
3808 }
3809
357c692c 3810 /* vm time timers */
d6dc3d42
AL		 3811 if (vm_running) {
3812 if (!cur_cpu || likely(!(cur_cpu->singlestep_enabled & SSTEP_NOTIMER)))
0fdddf80
JK		 3813 qemu_run_timers(&active_timers[QEMU_CLOCK_VIRTUAL],
3814 qemu_get_clock(vm_clock));
d6dc3d42 3815 }
357c692c
AL		 3816
3817 /* real time timers */
0fdddf80 3818 qemu_run_timers(&active_timers[QEMU_CLOCK_REALTIME],
357c692c
AL		 3819 qemu_get_clock(rt_clock));
3820
21d5d12b
JK		 3821 qemu_run_timers(&active_timers[QEMU_CLOCK_HOST],
3822 qemu_get_clock(host_clock));
3823
423f0742
PB		 3824 /* Check bottom-halves last in case any of the earlier events triggered
3825 them. */
3826 qemu_bh_poll();
3b46e624 3827
5905b2e5
FB		 3828}
3829
43b96858 3830static int qemu_cpu_exec(CPUState *env)
5905b2e5 3831{
43b96858 3832 int ret;
89bfc105
FB		 3833#ifdef CONFIG_PROFILER
3834 int64_t ti;
3835#endif
5905b2e5 3836
89bfc105 3837#ifdef CONFIG_PROFILER
43b96858 3838 ti = profile_getclock();
89bfc105 3839#endif
43b96858
AL		 3840 if (use_icount) {
3841 int64_t count;
3842 int decr;
3843 qemu_icount -= (env->icount_decr.u16.low + env->icount_extra);
3844 env->icount_decr.u16.low = 0;
3845 env->icount_extra = 0;
3846 count = qemu_next_deadline();
3847 count = (count + (1 << icount_time_shift) - 1)
3848 >> icount_time_shift;
3849 qemu_icount += count;
3850 decr = (count > 0xffff) ? 0xffff : count;
3851 count -= decr;
3852 env->icount_decr.u16.low = decr;
3853 env->icount_extra = count;
3854 }
3855 ret = cpu_exec(env);
89bfc105 3856#ifdef CONFIG_PROFILER
43b96858 3857 qemu_time += profile_getclock() - ti;
89bfc105 3858#endif
43b96858
AL		 3859 if (use_icount) {
3860 /* Fold pending instructions back into the
3861 instruction counter, and clear the interrupt flag. */
3862 qemu_icount -= (env->icount_decr.u16.low
3863 + env->icount_extra);
3864 env->icount_decr.u32 = 0;
3865 env->icount_extra = 0;
3866 }
3867 return ret;
3868}
3869
e6e35b1e
AL		 3870static void tcg_cpu_exec(void)
3871{
d6dc3d42 3872 int ret = 0;
e6e35b1e
AL		 3873
3874 if (next_cpu == NULL)
3875 next_cpu = first_cpu;
3876 for (; next_cpu != NULL; next_cpu = next_cpu->next_cpu) {
3877 CPUState *env = cur_cpu = next_cpu;
3878
e6e35b1e
AL		 3879 if (timer_alarm_pending) {
3880 timer_alarm_pending = 0;
3881 break;
3882 }
d6dc3d42
AL		 3883 if (cpu_can_run(env))
3884 ret = qemu_cpu_exec(env);
c37cc7b0
MT		 3885 else if (env->stop)
3886 break;
3887
e6e35b1e
AL		 3888 if (ret == EXCP_DEBUG) {
3889 gdb_set_stop_cpu(env);
3890 debug_requested = 1;
3891 break;
3892 }
3893 }
3894}
3895
43b96858
AL		 3896static int cpu_has_work(CPUState *env)
3897{
d6dc3d42
AL		 3898 if (env->stop)
3899 return 1;
3900 if (env->stopped)
3901 return 0;
43b96858
AL		 3902 if (!env->halted)
3903 return 1;
3904 if (qemu_cpu_has_work(env))
3905 return 1;
3906 return 0;
3907}
3908
3909static int tcg_has_work(void)
3910{
3911 CPUState *env;
3912
3913 for (env = first_cpu; env != NULL; env = env->next_cpu)
3914 if (cpu_has_work(env))
3915 return 1;
3916 return 0;
3917}
3918
3919static int qemu_calculate_timeout(void)
3920{
b319820d 3921#ifndef CONFIG_IOTHREAD
43b96858
AL		 3922 int timeout;
3923
3924 if (!vm_running)
3925 timeout = 5000;
3926 else if (tcg_has_work())
3927 timeout = 0;
3928 else if (!use_icount)
3929 timeout = 5000;
3930 else {
3931 /* XXX: use timeout computed from timers */
3932 int64_t add;
3933 int64_t delta;
3934 /* Advance virtual time to the next event. */
3935 if (use_icount == 1) {
3936 /* When not using an adaptive execution frequency
3937 we tend to get badly out of sync with real time,
3938 so just delay for a reasonable amount of time. */
3939 delta = 0;
3940 } else {
3941 delta = cpu_get_icount() - cpu_get_clock();
3942 }
3943 if (delta > 0) {
3944 /* If virtual time is ahead of real time then just
3945 wait for IO. */
3946 timeout = (delta / 1000000) + 1;
3947 } else {
3948 /* Wait for either IO to occur or the next
3949 timer event. */
3950 add = qemu_next_deadline();
3951 /* We advance the timer before checking for IO.
3952 Limit the amount we advance so that early IO
3953 activity won't get the guest too far ahead. */
3954 if (add > 10000000)
3955 add = 10000000;
3956 delta += add;
3957 add = (add + (1 << icount_time_shift) - 1)
3958 >> icount_time_shift;
3959 qemu_icount += add;
3960 timeout = delta / 1000000;
3961 if (timeout < 0)
3962 timeout = 0;
3963 }
3964 }
3965
3966 return timeout;
b319820d
LC		 3967#else /* CONFIG_IOTHREAD */
3968 return 1000;
3969#endif
43b96858
AL		 3970}
3971
3972static int vm_can_run(void)
3973{
3974 if (powerdown_requested)
3975 return 0;
3976 if (reset_requested)
3977 return 0;
3978 if (shutdown_requested)
3979 return 0;
e568902a
AL		 3980 if (debug_requested)
3981 return 0;
43b96858
AL		 3982 return 1;
3983}
3984
d9c32310
BS		 3985qemu_irq qemu_system_powerdown;
3986
43b96858
AL		 3987static void main_loop(void)
3988{
6e29f5da 3989 int r;
e6e35b1e 3990
d6dc3d42
AL		 3991#ifdef CONFIG_IOTHREAD
3992 qemu_system_ready = 1;
3993 qemu_cond_broadcast(&qemu_system_cond);
3994#endif
3995
6e29f5da 3996 for (;;) {
43b96858 3997 do {
e6e35b1e
AL		 3998#ifdef CONFIG_PROFILER
3999 int64_t ti;
4000#endif
d6dc3d42 4001#ifndef CONFIG_IOTHREAD
e6e35b1e 4002 tcg_cpu_exec();
d6dc3d42 4003#endif
89bfc105 4004#ifdef CONFIG_PROFILER
43b96858 4005 ti = profile_getclock();
89bfc105 4006#endif
43b96858 4007 main_loop_wait(qemu_calculate_timeout());
89bfc105 4008#ifdef CONFIG_PROFILER
43b96858 4009 dev_time += profile_getclock() - ti;
89bfc105 4010#endif
e568902a 4011 } while (vm_can_run());
43b96858 4012
b1a15e7e 4013 if (qemu_debug_requested()) {
242cd003 4014 monitor_protocol_event(QEVENT_DEBUG, NULL);
e568902a 4015 vm_stop(EXCP_DEBUG);
b1a15e7e 4016 }
43b96858 4017 if (qemu_shutdown_requested()) {
242cd003 4018 monitor_protocol_event(QEVENT_SHUTDOWN, NULL);
43b96858
AL		 4019 if (no_shutdown) {
4020 vm_stop(0);
4021 no_shutdown = 0;
4022 } else
4023 break;
4024 }
d6dc3d42 4025 if (qemu_reset_requested()) {
242cd003 4026 monitor_protocol_event(QEVENT_RESET, NULL);
d6dc3d42 4027 pause_all_vcpus();
43b96858 4028 qemu_system_reset();
d6dc3d42
AL		 4029 resume_all_vcpus();
4030 }
d9c32310 4031 if (qemu_powerdown_requested()) {
242cd003 4032 monitor_protocol_event(QEVENT_POWERDOWN, NULL);
d9c32310
BS		 4033 qemu_irq_raise(qemu_system_powerdown);
4034 }
b1a15e7e 4035 if ((r = qemu_vmstop_requested())) {
242cd003 4036 monitor_protocol_event(QEVENT_STOP, NULL);
6e29f5da 4037 vm_stop(r);
b1a15e7e 4038 }
b4608c04 4039 }
d6dc3d42 4040 pause_all_vcpus();
b4608c04
FB		 4041}
4042
9bd7e6d9
PB		 4043static void version(void)
4044{
4a19f1ec 4045 printf("QEMU PC emulator version " QEMU_VERSION QEMU_PKGVERSION ", Copyright (c) 2003-2008 Fabrice Bellard\n");
9bd7e6d9
PB		 4046}
4047
15f82208 4048static void help(int exitcode)
0824d6fc 4049{
e8105ebb 4050 const char *options_help =
5824d651
BS		 4051#define DEF(option, opt_arg, opt_enum, opt_help) \
4052 opt_help
4053#define DEFHEADING(text) stringify(text) "\n"
4054#include "qemu-options.h"
4055#undef DEF
4056#undef DEFHEADING
4057#undef GEN_DOCS
e8105ebb
PB		 4058 ;
4059 version();
4060 printf("usage: %s [options] [disk_image]\n"
4061 "\n"
4062 "'disk_image' is a raw hard image image for IDE hard disk 0\n"
3f020d70 4063 "\n"
e8105ebb 4064 "%s\n"
3f020d70 4065 "During emulation, the following keys are useful:\n"
4066 "ctrl-alt-f toggle full screen\n"
4067 "ctrl-alt-n switch to virtual console 'n'\n"
4068 "ctrl-alt toggle mouse and keyboard grab\n"
4069 "\n"
e8105ebb
PB		 4070 "When using -nographic, press 'ctrl-a h' to get some help.\n",
4071 "qemu",
4072 options_help);
15f82208 4073 exit(exitcode);
0824d6fc
FB		 4074}
4075
cd6f1169
FB		 4076#define HAS_ARG 0x0001
4077
4078enum {
5824d651
BS		 4079#define DEF(option, opt_arg, opt_enum, opt_help) \
4080 opt_enum,
4081#define DEFHEADING(text)
4082#include "qemu-options.h"
4083#undef DEF
4084#undef DEFHEADING
4085#undef GEN_DOCS
cd6f1169
FB		 4086};
4087
4088typedef struct QEMUOption {
4089 const char *name;
4090 int flags;
4091 int index;
4092} QEMUOption;
4093
dbed7e40 4094static const QEMUOption qemu_options[] = {
cd6f1169 4095 { "h", 0, QEMU_OPTION_h },
5824d651
BS		 4096#define DEF(option, opt_arg, opt_enum, opt_help) \
4097 { option, opt_arg, opt_enum },
4098#define DEFHEADING(text)
4099#include "qemu-options.h"
4100#undef DEF
4101#undef DEFHEADING
4102#undef GEN_DOCS
cd6f1169 4103 { NULL },
fc01f7e7
FB		 4104};
4105
1d14ffa9 4106#ifdef HAS_AUDIO
6a36d84e 4107struct soundhw soundhw[] = {
b00052e4 4108#ifdef HAS_AUDIO_CHOICE
4ce7ff6e 4109#if defined(TARGET_I386) || defined(TARGET_MIPS)
fd06c375
FB		 4110 {
4111 "pcspk",
4112 "PC speaker",
4113 0,
4114 1,
4115 { .init_isa = pcspk_audio_init }
4116 },
4117#endif
4c9b53e3 4118
4119#ifdef CONFIG_SB16
6a36d84e
FB		 4120 {
4121 "sb16",
4122 "Creative Sound Blaster 16",
4123 0,
4124 1,
4125 { .init_isa = SB16_init }
4126 },
4c9b53e3 4127#endif
6a36d84e 4128
cc53d26d 4129#ifdef CONFIG_CS4231A
4130 {
4131 "cs4231a",
4132 "CS4231A",
4133 0,
4134 1,
4135 { .init_isa = cs4231a_init }
4136 },
4137#endif
4138
1d14ffa9 4139#ifdef CONFIG_ADLIB
6a36d84e
FB		 4140 {
4141 "adlib",
1d14ffa9 4142#ifdef HAS_YMF262
6a36d84e 4143 "Yamaha YMF262 (OPL3)",
1d14ffa9 4144#else
6a36d84e 4145 "Yamaha YM3812 (OPL2)",
1d14ffa9 4146#endif
6a36d84e
FB		 4147 0,
4148 1,
4149 { .init_isa = Adlib_init }
4150 },
1d14ffa9 4151#endif
6a36d84e 4152
1d14ffa9 4153#ifdef CONFIG_GUS
6a36d84e
FB		 4154 {
4155 "gus",
4156 "Gravis Ultrasound GF1",
4157 0,
4158 1,
4159 { .init_isa = GUS_init }
4160 },
1d14ffa9 4161#endif
6a36d84e 4162
4c9b53e3 4163#ifdef CONFIG_AC97
e5c9a13e
AZ		 4164 {
4165 "ac97",
4166 "Intel 82801AA AC97 Audio",
4167 0,
4168 0,
4169 { .init_pci = ac97_init }
4170 },
4c9b53e3 4171#endif
e5c9a13e 4172
4c9b53e3 4173#ifdef CONFIG_ES1370
6a36d84e
FB		 4174 {
4175 "es1370",
4176 "ENSONIQ AudioPCI ES1370",
4177 0,
4178 0,
4179 { .init_pci = es1370_init }
4180 },
b00052e4 4181#endif
6a36d84e 4182
4c9b53e3 4183#endif /* HAS_AUDIO_CHOICE */
4184
6a36d84e
FB		 4185 { NULL, NULL, 0, 0, { NULL } }
4186};
4187
4188static void select_soundhw (const char *optarg)
4189{
4190 struct soundhw *c;
4191
4192 if (*optarg == '?') {
4193 show_valid_cards:
4194
4195 printf ("Valid sound card names (comma separated):\n");
4196 for (c = soundhw; c->name; ++c) {
4197 printf ("%-11s %s\n", c->name, c->descr);
4198 }
4199 printf ("\n-soundhw all will enable all of the above\n");
1d14ffa9
FB		 4200 exit (*optarg != '?');
4201 }
4202 else {
6a36d84e 4203 size_t l;
1d14ffa9
FB		 4204 const char *p;
4205 char *e;
4206 int bad_card = 0;
4207
6a36d84e
FB		 4208 if (!strcmp (optarg, "all")) {
4209 for (c = soundhw; c->name; ++c) {
4210 c->enabled = 1;
4211 }
4212 return;
4213 }
1d14ffa9 4214
6a36d84e 4215 p = optarg;
1d14ffa9
FB		 4216 while (*p) {
4217 e = strchr (p, ',');
4218 l = !e ? strlen (p) : (size_t) (e - p);
6a36d84e
FB		 4219
4220 for (c = soundhw; c->name; ++c) {
b3d6fb4a 4221 if (!strncmp (c->name, p, l) && !c->name[l]) {
6a36d84e 4222 c->enabled = 1;
1d14ffa9
FB		 4223 break;
4224 }
4225 }
6a36d84e
FB		 4226
4227 if (!c->name) {
1d14ffa9
FB		 4228 if (l > 80) {
4229 fprintf (stderr,
4230 "Unknown sound card name (too big to show)\n");
4231 }
4232 else {
4233 fprintf (stderr, "Unknown sound card name `%.*s'\n",
4234 (int) l, p);
4235 }
4236 bad_card = 1;
4237 }
4238 p += l + (e != NULL);
4239 }
4240
4241 if (bad_card)
4242 goto show_valid_cards;
4243 }
4244}
4245#endif
4246
3893c124 4247static void select_vgahw (const char *p)
4248{
4249 const char *opts;
4250
64465297 4251 default_vga = 0;
86176759 4252 vga_interface_type = VGA_NONE;
3893c124 4253 if (strstart(p, "std", &opts)) {
86176759 4254 vga_interface_type = VGA_STD;
3893c124 4255 } else if (strstart(p, "cirrus", &opts)) {
86176759 4256 vga_interface_type = VGA_CIRRUS;
3893c124 4257 } else if (strstart(p, "vmware", &opts)) {
86176759 4258 vga_interface_type = VGA_VMWARE;
94909d9f 4259 } else if (strstart(p, "xenfb", &opts)) {
86176759 4260 vga_interface_type = VGA_XENFB;
28b85ed8 4261 } else if (!strstart(p, "none", &opts)) {
3893c124 4262 invalid_vga:
4263 fprintf(stderr, "Unknown vga type: %s\n", p);
4264 exit(1);
4265 }
cb5a7aa8 4266 while (*opts) {
4267 const char *nextopt;
4268
4269 if (strstart(opts, ",retrace=", &nextopt)) {
4270 opts = nextopt;
4271 if (strstart(opts, "dumb", &nextopt))
4272 vga_retrace_method = VGA_RETRACE_DUMB;
4273 else if (strstart(opts, "precise", &nextopt))
4274 vga_retrace_method = VGA_RETRACE_PRECISE;
4275 else goto invalid_vga;
4276 } else goto invalid_vga;
4277 opts = nextopt;
4278 }
3893c124 4279}
4280
7d4c3d53
MA		 4281#ifdef TARGET_I386
4282static int balloon_parse(const char *arg)
4283{
382f0743 4284 QemuOpts *opts;
7d4c3d53 4285
382f0743
GH		 4286 if (strcmp(arg, "none") == 0) {
4287 return 0;
4288 }
4289
4290 if (!strncmp(arg, "virtio", 6)) {
4291 if (arg[6] == ',') {
4292 /* have params -> parse them */
4293 opts = qemu_opts_parse(&qemu_device_opts, arg+7, NULL);
4294 if (!opts)
4295 return -1;
4296 } else {
4297 /* create empty opts */
4298 opts = qemu_opts_create(&qemu_device_opts, NULL, 0);
7d4c3d53 4299 }
382f0743
GH		 4300 qemu_opt_set(opts, "driver", "virtio-balloon-pci");
4301 return 0;
7d4c3d53 4302 }
382f0743
GH		 4303
4304 return -1;
7d4c3d53
MA		 4305}
4306#endif
4307
3587d7e6
FB		 4308#ifdef _WIN32
4309static BOOL WINAPI qemu_ctrl_handler(DWORD type)
4310{
4311 exit(STATUS_CONTROL_C_EXIT);
4312 return TRUE;
4313}
4314#endif
4315
c4be29ff 4316int qemu_uuid_parse(const char *str, uint8_t *uuid)
8fcb1b90
BS		 4317{
4318 int ret;
4319
4320 if(strlen(str) != 36)
4321 return -1;
4322
4323 ret = sscanf(str, UUID_FMT, &uuid[0], &uuid[1], &uuid[2], &uuid[3],
4324 &uuid[4], &uuid[5], &uuid[6], &uuid[7], &uuid[8], &uuid[9],
4325 &uuid[10], &uuid[11], &uuid[12], &uuid[13], &uuid[14], &uuid[15]);
4326
4327 if(ret != 16)
4328 return -1;
4329
b6f6e3d3
AL		 4330#ifdef TARGET_I386
4331 smbios_add_field(1, offsetof(struct smbios_type_1, uuid), 16, uuid);
4332#endif
4333
8fcb1b90
BS		 4334 return 0;
4335}
4336
5b08fc10
AL		 4337#ifndef _WIN32
4338
4339static void termsig_handler(int signal)
4340{
4341 qemu_system_shutdown_request();
4342}
4343
7c3370d4
JK		 4344static void sigchld_handler(int signal)
4345{
4346 waitpid(-1, NULL, WNOHANG);
4347}
4348
4349static void sighandler_setup(void)
5b08fc10
AL		 4350{
4351 struct sigaction act;
4352
4353 memset(&act, 0, sizeof(act));
4354 act.sa_handler = termsig_handler;
4355 sigaction(SIGINT, &act, NULL);
4356 sigaction(SIGHUP, &act, NULL);
4357 sigaction(SIGTERM, &act, NULL);
7c3370d4
JK		 4358
4359 act.sa_handler = sigchld_handler;
4360 act.sa_flags = SA_NOCLDSTOP;
4361 sigaction(SIGCHLD, &act, NULL);
5b08fc10
AL		 4362}
4363
4364#endif
4365
5cea8590
PB		 4366#ifdef _WIN32
4367/* Look for support files in the same directory as the executable. */
4368static char *find_datadir(const char *argv0)
4369{
4370 char *p;
4371 char buf[MAX_PATH];
4372 DWORD len;
4373
4374 len = GetModuleFileName(NULL, buf, sizeof(buf) - 1);
4375 if (len == 0) {
c5947808 4376 return NULL;
5cea8590
PB		 4377 }
4378
4379 buf[len] = 0;
4380 p = buf + len - 1;
4381 while (p != buf && *p != '\\')
4382 p--;
4383 *p = 0;
4384 if (access(buf, R_OK) == 0) {
4385 return qemu_strdup(buf);
4386 }
4387 return NULL;
4388}
4389#else /* !_WIN32 */
4390
4391/* Find a likely location for support files using the location of the binary.
4392 For installed binaries this will be "$bindir/../share/qemu". When
4393 running from the build tree this will be "$bindir/../pc-bios". */
4394#define SHARE_SUFFIX "/share/qemu"
4395#define BUILD_SUFFIX "/pc-bios"
4396static char *find_datadir(const char *argv0)
4397{
4398 char *dir;
4399 char *p = NULL;
4400 char *res;
5cea8590 4401 char buf[PATH_MAX];
3a41759d 4402 size_t max_len;
5cea8590
PB		 4403
4404#if defined(__linux__)
4405 {
4406 int len;
4407 len = readlink("/proc/self/exe", buf, sizeof(buf) - 1);
4408 if (len > 0) {
4409 buf[len] = 0;
4410 p = buf;
4411 }
4412 }
4413#elif defined(__FreeBSD__)
4414 {
4415 int len;
4416 len = readlink("/proc/curproc/file", buf, sizeof(buf) - 1);
4417 if (len > 0) {
4418 buf[len] = 0;
4419 p = buf;
4420 }
4421 }
4422#endif
4423 /* If we don't have any way of figuring out the actual executable
4424 location then try argv[0]. */
4425 if (!p) {
4d224196 4426 p = realpath(argv0, buf);
5cea8590
PB		 4427 if (!p) {
4428 return NULL;
4429 }
4430 }
4431 dir = dirname(p);
4432 dir = dirname(dir);
4433
3a41759d
BS		 4434 max_len = strlen(dir) +
4435 MAX(strlen(SHARE_SUFFIX), strlen(BUILD_SUFFIX)) + 1;
4436 res = qemu_mallocz(max_len);
4437 snprintf(res, max_len, "%s%s", dir, SHARE_SUFFIX);
5cea8590 4438 if (access(res, R_OK)) {
3a41759d 4439 snprintf(res, max_len, "%s%s", dir, BUILD_SUFFIX);
5cea8590
PB		 4440 if (access(res, R_OK)) {
4441 qemu_free(res);
4442 res = NULL;
4443 }
4444 }
4d224196 4445
5cea8590
PB		 4446 return res;
4447}
4448#undef SHARE_SUFFIX
4449#undef BUILD_SUFFIX
4450#endif
4451
4452char *qemu_find_file(int type, const char *name)
4453{
4454 int len;
4455 const char *subdir;
4456 char *buf;
4457
4458 /* If name contains path separators then try it as a straight path. */
4459 if ((strchr(name, '/') || strchr(name, '\\'))
4460 && access(name, R_OK) == 0) {
73ffc805 4461 return qemu_strdup(name);
5cea8590
PB		 4462 }
4463 switch (type) {
4464 case QEMU_FILE_TYPE_BIOS:
4465 subdir = "";
4466 break;
4467 case QEMU_FILE_TYPE_KEYMAP:
4468 subdir = "keymaps/";
4469 break;
4470 default:
4471 abort();
4472 }
4473 len = strlen(data_dir) + strlen(name) + strlen(subdir) + 2;
4474 buf = qemu_mallocz(len);
3a41759d 4475 snprintf(buf, len, "%s/%s%s", data_dir, subdir, name);
5cea8590
PB		 4476 if (access(buf, R_OK)) {
4477 qemu_free(buf);
4478 return NULL;
4479 }
4480 return buf;
4481}
4482
ff952ba2
MA		 4483static int device_help_func(QemuOpts *opts, void *opaque)
4484{
4485 return qdev_device_help(opts);
4486}
4487
f31d07d1
GH		 4488static int device_init_func(QemuOpts *opts, void *opaque)
4489{
4490 DeviceState *dev;
4491
4492 dev = qdev_device_add(opts);
4493 if (!dev)
4494 return -1;
4495 return 0;
4496}
4497
1a688d3b
GH		 4498static int chardev_init_func(QemuOpts *opts, void *opaque)
4499{
4500 CharDriverState *chr;
4501
4502 chr = qemu_chr_open_opts(opts, NULL);
4503 if (!chr)
4504 return -1;
4505 return 0;
4506}
4507
88589343
GH		 4508static int mon_init_func(QemuOpts *opts, void *opaque)
4509{
4510 CharDriverState *chr;
4511 const char *chardev;
4512 const char *mode;
4513 int flags;
4514
4515 mode = qemu_opt_get(opts, "mode");
4516 if (mode == NULL) {
4517 mode = "readline";
4518 }
4519 if (strcmp(mode, "readline") == 0) {
4520 flags = MONITOR_USE_READLINE;
4521 } else if (strcmp(mode, "control") == 0) {
4522 flags = MONITOR_USE_CONTROL;
4523 } else {
4524 fprintf(stderr, "unknown monitor mode \"%s\"\n", mode);
4525 exit(1);
4526 }
4527
4528 if (qemu_opt_get_bool(opts, "default", 0))
4529 flags |= MONITOR_IS_DEFAULT;
4530
4531 chardev = qemu_opt_get(opts, "chardev");
4532 chr = qemu_chr_find(chardev);
4533 if (chr == NULL) {
4534 fprintf(stderr, "chardev \"%s\" not found\n", chardev);
4535 exit(1);
4536 }
4537
4538 monitor_init(chr, flags);
4539 return 0;
4540}
4541
6ca5582d 4542static void monitor_parse(const char *optarg, const char *mode)
88589343
GH		 4543{
4544 static int monitor_device_index = 0;
4545 QemuOpts *opts;
4546 const char *p;
4547 char label[32];
4548 int def = 0;
4549
4550 if (strstart(optarg, "chardev:", &p)) {
4551 snprintf(label, sizeof(label), "%s", p);
4552 } else {
4553 if (monitor_device_index) {
4554 snprintf(label, sizeof(label), "monitor%d",
4555 monitor_device_index);
4556 } else {
4557 snprintf(label, sizeof(label), "monitor");
4558 def = 1;
4559 }
4560 opts = qemu_chr_parse_compat(label, optarg);
4561 if (!opts) {
4562 fprintf(stderr, "parse error: %s\n", optarg);
4563 exit(1);
4564 }
4565 }
4566
4567 opts = qemu_opts_create(&qemu_mon_opts, label, 1);
4568 if (!opts) {
4569 fprintf(stderr, "duplicate chardev: %s\n", label);
4570 exit(1);
4571 }
6ca5582d 4572 qemu_opt_set(opts, "mode", mode);
88589343
GH		 4573 qemu_opt_set(opts, "chardev", label);
4574 if (def)
4575 qemu_opt_set(opts, "default", "on");
4576 monitor_device_index++;
4577}
4578
bd3c948d
GH		 4579struct device_config {
4580 enum {
aee1b935
GH		 4581 DEV_USB, /* -usbdevice */
4582 DEV_BT, /* -bt */
4583 DEV_SERIAL, /* -serial */
4584 DEV_PARALLEL, /* -parallel */
4585 DEV_VIRTCON, /* -virtioconsole */
c9f398e5 4586 DEV_DEBUGCON, /* -debugcon */
bd3c948d
GH		 4587 } type;
4588 const char *cmdline;
72cf2d4f 4589 QTAILQ_ENTRY(device_config) next;
bd3c948d 4590};
72cf2d4f 4591QTAILQ_HEAD(, device_config) device_configs = QTAILQ_HEAD_INITIALIZER(device_configs);
bd3c948d
GH		 4592
4593static void add_device_config(int type, const char *cmdline)
4594{
4595 struct device_config *conf;
4596
4597 conf = qemu_mallocz(sizeof(*conf));
4598 conf->type = type;
4599 conf->cmdline = cmdline;
72cf2d4f 4600 QTAILQ_INSERT_TAIL(&device_configs, conf, next);
bd3c948d
GH		 4601}
4602
4603static int foreach_device_config(int type, int (*func)(const char *cmdline))
4604{
4605 struct device_config *conf;
4606 int rc;
4607
72cf2d4f 4608 QTAILQ_FOREACH(conf, &device_configs, next) {
bd3c948d
GH		 4609 if (conf->type != type)
4610 continue;
4611 rc = func(conf->cmdline);
4612 if (0 != rc)
4613 return rc;
4614 }
4615 return 0;
4616}
4617
998bbd74
GH		 4618static int serial_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_SERIAL_PORTS) {
4626 fprintf(stderr, "qemu: too many serial ports\n");
4627 exit(1);
4628 }
4629 snprintf(label, sizeof(label), "serial%d", index);
4630 serial_hds[index] = qemu_chr_open(label, devname, NULL);
4631 if (!serial_hds[index]) {
4632 fprintf(stderr, "qemu: could not open serial device '%s': %s\n",
4633 devname, strerror(errno));
4634 return -1;
4635 }
4636 index++;
4637 return 0;
4638}
4639
6a5e8b0e
GH		 4640static int parallel_parse(const char *devname)
4641{
4642 static int index = 0;
4643 char label[32];
4644
4645 if (strcmp(devname, "none") == 0)
4646 return 0;
4647 if (index == MAX_PARALLEL_PORTS) {
4648 fprintf(stderr, "qemu: too many parallel ports\n");
4649 exit(1);
4650 }
4651 snprintf(label, sizeof(label), "parallel%d", index);
4652 parallel_hds[index] = qemu_chr_open(label, devname, NULL);
4653 if (!parallel_hds[index]) {
4654 fprintf(stderr, "qemu: could not open parallel device '%s': %s\n",
4655 devname, strerror(errno));
4656 return -1;
4657 }
4658 index++;
4659 return 0;
4660}
4661
aee1b935
GH		 4662static int virtcon_parse(const char *devname)
4663{
4664 static int index = 0;
4665 char label[32];
392ecf54 4666 QemuOpts *bus_opts, *dev_opts;
aee1b935
GH		 4667
4668 if (strcmp(devname, "none") == 0)
4669 return 0;
4670 if (index == MAX_VIRTIO_CONSOLES) {
4671 fprintf(stderr, "qemu: too many virtio consoles\n");
4672 exit(1);
4673 }
392ecf54
AS		 4674
4675 bus_opts = qemu_opts_create(&qemu_device_opts, NULL, 0);
4676 qemu_opt_set(bus_opts, "driver", "virtio-serial");
4677
4678 dev_opts = qemu_opts_create(&qemu_device_opts, NULL, 0);
4679 qemu_opt_set(dev_opts, "driver", "virtconsole");
4680
aee1b935
GH		 4681 snprintf(label, sizeof(label), "virtcon%d", index);
4682 virtcon_hds[index] = qemu_chr_open(label, devname, NULL);
4683 if (!virtcon_hds[index]) {
4684 fprintf(stderr, "qemu: could not open virtio console '%s': %s\n",
4685 devname, strerror(errno));
4686 return -1;
4687 }
392ecf54
AS		 4688 qemu_opt_set(dev_opts, "chardev", label);
4689
aee1b935
GH		 4690 index++;
4691 return 0;
4692}
4693
c9f398e5
PA		 4694static int debugcon_parse(const char *devname)
4695{
4696 QemuOpts *opts;
4697
4698 if (!qemu_chr_open("debugcon", devname, NULL)) {
4699 exit(1);
4700 }
4701 opts = qemu_opts_create(&qemu_device_opts, "debugcon", 1);
4702 if (!opts) {
4703 fprintf(stderr, "qemu: already have a debugcon device\n");
4704 exit(1);
4705 }
4706 qemu_opt_set(opts, "driver", "isa-debugcon");
4707 qemu_opt_set(opts, "chardev", "debugcon");
4708 return 0;
4709}
4710
6530a97b
AL		 4711static const QEMUOption *lookup_opt(int argc, char **argv,
4712 const char **poptarg, int *poptind)
4713{
4714 const QEMUOption *popt;
4715 int optind = *poptind;
4716 char *r = argv[optind];
4717 const char *optarg;
4718
4719 optind++;
4720 /* Treat --foo the same as -foo. */
4721 if (r[1] == '-')
4722 r++;
4723 popt = qemu_options;
4724 for(;;) {
4725 if (!popt->name) {
4726 fprintf(stderr, "%s: invalid option -- '%s'\n",
4727 argv[0], r);
4728 exit(1);
4729 }
4730 if (!strcmp(popt->name, r + 1))
4731 break;
4732 popt++;
4733 }
4734 if (popt->flags & HAS_ARG) {
4735 if (optind >= argc) {
4736 fprintf(stderr, "%s: option '%s' requires an argument\n",
4737 argv[0], r);
4738 exit(1);
4739 }
4740 optarg = argv[optind++];
4741 } else {
4742 optarg = NULL;
4743 }
4744
4745 *poptarg = optarg;
4746 *poptind = optind;
4747
4748 return popt;
4749}
4750
902b3d5c 4751int main(int argc, char **argv, char **envp)
0824d6fc 4752{
59030a8c 4753 const char *gdbstub_dev = NULL;
28c5af54 4754 uint32_t boot_devices_bitmap = 0;
e4bcb14c 4755 int i;
28c5af54 4756 int snapshot, linux_boot, net_boot;
7f7f9873 4757 const char *initrd_filename;
a20dd508 4758 const char *kernel_filename, *kernel_cmdline;
195325a4 4759 char boot_devices[33] = "cad"; /* default to HD->floppy->CD-ROM */
3023f332 4760 DisplayState *ds;
7d957bd8 4761 DisplayChangeListener *dcl;
46d4767d 4762 int cyls, heads, secs, translation;
f31d07d1 4763 QemuOpts *hda_opts = NULL, *opts;
cd6f1169 4764 int optind;
6530a97b 4765 const char *optarg;
d63d307f 4766 const char *loadvm = NULL;
cc1daa40 4767 QEMUMachine *machine;
94fc95cd 4768 const char *cpu_model;
b9e82a59 4769#ifndef _WIN32
71e3ceb8 4770 int fds[2];
b9e82a59 4771#endif
26a5f13b 4772 int tb_size;
93815bc2 4773 const char *pid_file = NULL;
5bb7910a 4774 const char *incoming = NULL;
b9e82a59 4775#ifndef _WIN32
54042bcf
AL		 4776 int fd = 0;
4777 struct passwd *pwd = NULL;
0858532e
AL		 4778 const char *chroot_dir = NULL;
4779 const char *run_as = NULL;
b9e82a59 4780#endif
268a362c 4781 CPUState *env;
993fbfdb 4782 int show_vnc_port = 0;
292444cb 4783 int defconfig = 1;
0bd48850 4784
6875204c
JK		 4785 init_clocks();
4786
ac7531ec 4787 qemu_errors_to_file(stderr);
902b3d5c 4788 qemu_cache_utils_init(envp);
4789
72cf2d4f 4790 QLIST_INIT (&vm_change_state_head);
be995c27
FB		 4791#ifndef _WIN32
4792 {
4793 struct sigaction act;
4794 sigfillset(&act.sa_mask);
4795 act.sa_flags = 0;
4796 act.sa_handler = SIG_IGN;
4797 sigaction(SIGPIPE, &act, NULL);
4798 }
3587d7e6
FB		 4799#else
4800 SetConsoleCtrlHandler(qemu_ctrl_handler, TRUE);
a8e5ac33
FB		 4801 /* Note: cpu_interrupt() is currently not SMP safe, so we force
4802 QEMU to run on a single CPU */
4803 {
4804 HANDLE h;
4805 DWORD mask, smask;
4806 int i;
4807 h = GetCurrentProcess();
4808 if (GetProcessAffinityMask(h, &mask, &smask)) {
4809 for(i = 0; i < 32; i++) {
4810 if (mask & (1 << i))
4811 break;
4812 }
4813 if (i != 32) {
4814 mask = 1 << i;
4815 SetProcessAffinityMask(h, mask);
4816 }
4817 }
4818 }
67b915a5 4819#endif
be995c27 4820
f80f9ec9 4821 module_call_init(MODULE_INIT_MACHINE);
0c257437 4822 machine = find_default_machine();
94fc95cd 4823 cpu_model = NULL;
fc01f7e7 4824 initrd_filename = NULL;
4fc5d071 4825 ram_size = 0;
33e3963e 4826 snapshot = 0;
a20dd508
FB		 4827 kernel_filename = NULL;
4828 kernel_cmdline = "";
c4b1fcc0 4829 cyls = heads = secs = 0;
46d4767d 4830 translation = BIOS_ATA_TRANSLATION_AUTO;
c4b1fcc0 4831
268a362c
AL		 4832 for (i = 0; i < MAX_NODES; i++) {
4833 node_mem[i] = 0;
4834 node_cpumask[i] = 0;
4835 }
4836
268a362c 4837 nb_numa_nodes = 0;
7c9d8e07 4838 nb_nics = 0;
3b46e624 4839
26a5f13b 4840 tb_size = 0;
41bd639b
BS		 4841 autostart= 1;
4842
292444cb
AL		 4843 /* first pass of option parsing */
4844 optind = 1;
4845 while (optind < argc) {
4846 if (argv[optind][0] != '-') {
4847 /* disk image */
28e68d68 4848 optind++;
292444cb
AL		 4849 continue;
4850 } else {
4851 const QEMUOption *popt;
4852
4853 popt = lookup_opt(argc, argv, &optarg, &optind);
4854 switch (popt->index) {
4855 case QEMU_OPTION_nodefconfig:
4856 defconfig=0;
4857 break;
4858 }
4859 }
4860 }
4861
4862 if (defconfig) {
4863 FILE *fp;
4864 fp = fopen(CONFIG_QEMU_CONFDIR "/qemu.conf", "r");
4865 if (fp) {
4866 if (qemu_config_parse(fp) != 0) {
4867 exit(1);
4868 }
4869 fclose(fp);
4870 }
4871
4872 fp = fopen(CONFIG_QEMU_CONFDIR "/target-" TARGET_ARCH ".conf", "r");
4873 if (fp) {
4874 if (qemu_config_parse(fp) != 0) {
4875 exit(1);
4876 }
4877 fclose(fp);
4878 }
4879 }
4880
4881 /* second pass of option parsing */
cd6f1169 4882 optind = 1;
0824d6fc 4883 for(;;) {
cd6f1169 4884 if (optind >= argc)
0824d6fc 4885 break;
6530a97b 4886 if (argv[optind][0] != '-') {
9dfd7c7a 4887 hda_opts = drive_add(argv[optind++], HD_ALIAS, 0);
cd6f1169
FB		 4888 } else {
4889 const QEMUOption *popt;
4890
6530a97b 4891 popt = lookup_opt(argc, argv, &optarg, &optind);
cd6f1169 4892 switch(popt->index) {
cc1daa40
FB		 4893 case QEMU_OPTION_M:
4894 machine = find_machine(optarg);
4895 if (!machine) {
4896 QEMUMachine *m;
4897 printf("Supported machines are:\n");
4898 for(m = first_machine; m != NULL; m = m->next) {
3f6599e6
MM		 4899 if (m->alias)
4900 printf("%-10s %s (alias of %s)\n",
4901 m->alias, m->desc, m->name);
cc1daa40 4902 printf("%-10s %s%s\n",
5fafdf24 4903 m->name, m->desc,
0c257437 4904 m->is_default ? " (default)" : "");
cc1daa40 4905 }
15f82208 4906 exit(*optarg != '?');
cc1daa40
FB		 4907 }
4908 break;
94fc95cd
JM		 4909 case QEMU_OPTION_cpu:
4910 /* hw initialization will check this */
15f82208 4911 if (*optarg == '?') {
c732abe2
JM		 4912/* XXX: implement xxx_cpu_list for targets that still miss it */
4913#if defined(cpu_list)
4914 cpu_list(stdout, &fprintf);
94fc95cd 4915#endif
15f82208 4916 exit(0);
94fc95cd
JM		 4917 } else {
4918 cpu_model = optarg;
4919 }
4920 break;
cd6f1169 4921 case QEMU_OPTION_initrd:
fc01f7e7
FB		 4922 initrd_filename = optarg;
4923 break;
cd6f1169 4924 case QEMU_OPTION_hda:
e4bcb14c 4925 if (cyls == 0)
9dfd7c7a 4926 hda_opts = drive_add(optarg, HD_ALIAS, 0);
e4bcb14c 4927 else
9dfd7c7a 4928 hda_opts = drive_add(optarg, HD_ALIAS
e4bcb14c 4929 ",cyls=%d,heads=%d,secs=%d%s",
609497ab 4930 0, cyls, heads, secs,
e4bcb14c
TS		 4931 translation == BIOS_ATA_TRANSLATION_LBA ?
4932 ",trans=lba" :
4933 translation == BIOS_ATA_TRANSLATION_NONE ?
4934 ",trans=none" : "");
4935 break;
cd6f1169 4936 case QEMU_OPTION_hdb:
cc1daa40
FB		 4937 case QEMU_OPTION_hdc:
4938 case QEMU_OPTION_hdd:
609497ab 4939 drive_add(optarg, HD_ALIAS, popt->index - QEMU_OPTION_hda);
fc01f7e7 4940 break;
e4bcb14c 4941 case QEMU_OPTION_drive:
609497ab 4942 drive_add(NULL, "%s", optarg);
e4bcb14c 4943 break;
d058fe03
GH		 4944 case QEMU_OPTION_set:
4945 if (qemu_set_option(optarg) != 0)
4946 exit(1);
4947 break;
d0fef6fb
GH		 4948 case QEMU_OPTION_global:
4949 if (qemu_global_option(optarg) != 0)
4950 exit(1);
4951 break;
3e3d5815 4952 case QEMU_OPTION_mtdblock:
609497ab 4953 drive_add(optarg, MTD_ALIAS);
3e3d5815 4954 break;
a1bb27b1 4955 case QEMU_OPTION_sd:
609497ab 4956 drive_add(optarg, SD_ALIAS);
a1bb27b1 4957 break;
86f55663 4958 case QEMU_OPTION_pflash:
609497ab 4959 drive_add(optarg, PFLASH_ALIAS);
86f55663 4960 break;
cd6f1169 4961 case QEMU_OPTION_snapshot:
33e3963e
FB		 4962 snapshot = 1;
4963 break;
cd6f1169 4964 case QEMU_OPTION_hdachs:
330d0414 4965 {
330d0414
FB		 4966 const char *p;
4967 p = optarg;
4968 cyls = strtol(p, (char **)&p, 0);
46d4767d
FB		 4969 if (cyls < 1 || cyls > 16383)
4970 goto chs_fail;
330d0414
FB		 4971 if (*p != ',')
4972 goto chs_fail;
4973 p++;
4974 heads = strtol(p, (char **)&p, 0);
46d4767d
FB		 4975 if (heads < 1 || heads > 16)
4976 goto chs_fail;
330d0414
FB		 4977 if (*p != ',')
4978 goto chs_fail;
4979 p++;
4980 secs = strtol(p, (char **)&p, 0);
46d4767d
FB		 4981 if (secs < 1 || secs > 63)
4982 goto chs_fail;
4983 if (*p == ',') {
4984 p++;
4985 if (!strcmp(p, "none"))
4986 translation = BIOS_ATA_TRANSLATION_NONE;
4987 else if (!strcmp(p, "lba"))
4988 translation = BIOS_ATA_TRANSLATION_LBA;
4989 else if (!strcmp(p, "auto"))
4990 translation = BIOS_ATA_TRANSLATION_AUTO;
4991 else
4992 goto chs_fail;
4993 } else if (*p != '\0') {
c4b1fcc0 4994 chs_fail:
46d4767d
FB		 4995 fprintf(stderr, "qemu: invalid physical CHS format\n");
4996 exit(1);
c4b1fcc0 4997 }
9dfd7c7a
GH		 4998 if (hda_opts != NULL) {
4999 char num[16];
5000 snprintf(num, sizeof(num), "%d", cyls);
5001 qemu_opt_set(hda_opts, "cyls", num);
5002 snprintf(num, sizeof(num), "%d", heads);
5003 qemu_opt_set(hda_opts, "heads", num);
5004 snprintf(num, sizeof(num), "%d", secs);
5005 qemu_opt_set(hda_opts, "secs", num);
5006 if (translation == BIOS_ATA_TRANSLATION_LBA)
5007 qemu_opt_set(hda_opts, "trans", "lba");
5008 if (translation == BIOS_ATA_TRANSLATION_NONE)
5009 qemu_opt_set(hda_opts, "trans", "none");
5010 }
330d0414
FB		 5011 }
5012 break;
268a362c
AL		 5013 case QEMU_OPTION_numa:
5014 if (nb_numa_nodes >= MAX_NODES) {
5015 fprintf(stderr, "qemu: too many NUMA nodes\n");
5016 exit(1);
5017 }
5018 numa_add(optarg);
5019 break;
cd6f1169 5020 case QEMU_OPTION_nographic:
993fbfdb 5021 display_type = DT_NOGRAPHIC;
a20dd508 5022 break;
4d3b6f6e
AZ		 5023#ifdef CONFIG_CURSES
5024 case QEMU_OPTION_curses:
993fbfdb 5025 display_type = DT_CURSES;
4d3b6f6e
AZ		 5026 break;
5027#endif
a171fe39
AZ		 5028 case QEMU_OPTION_portrait:
5029 graphic_rotate = 1;
5030 break;
cd6f1169 5031 case QEMU_OPTION_kernel:
a20dd508
FB		 5032 kernel_filename = optarg;
5033 break;
cd6f1169 5034 case QEMU_OPTION_append:
a20dd508 5035 kernel_cmdline = optarg;
313aa567 5036 break;
cd6f1169 5037 case QEMU_OPTION_cdrom:
609497ab 5038 drive_add(optarg, CDROM_ALIAS);
36b486bb 5039 break;
cd6f1169 5040 case QEMU_OPTION_boot:
28c5af54 5041 {
ef3adf68 5042 static const char * const params[] = {
95387491 5043 "order", "once", "menu", NULL
ef3adf68
JK		 5044 };
5045 char buf[sizeof(boot_devices)];
e0f084bf 5046 char *standard_boot_devices;
ef3adf68
JK		 5047 int legacy = 0;
5048
5049 if (!strchr(optarg, '=')) {
5050 legacy = 1;
5051 pstrcpy(buf, sizeof(buf), optarg);
5052 } else if (check_params(buf, sizeof(buf), params, optarg) < 0) {
5053 fprintf(stderr,
5054 "qemu: unknown boot parameter '%s' in '%s'\n",
5055 buf, optarg);
5056 exit(1);
5057 }
5058
5059 if (legacy ||
5060 get_param_value(buf, sizeof(buf), "order", optarg)) {
5061 boot_devices_bitmap = parse_bootdevices(buf);
5062 pstrcpy(boot_devices, sizeof(boot_devices), buf);
28c5af54 5063 }
e0f084bf
JK		 5064 if (!legacy) {
5065 if (get_param_value(buf, sizeof(buf),
5066 "once", optarg)) {
5067 boot_devices_bitmap |= parse_bootdevices(buf);
5068 standard_boot_devices = qemu_strdup(boot_devices);
5069 pstrcpy(boot_devices, sizeof(boot_devices), buf);
5070 qemu_register_reset(restore_boot_devices,
5071 standard_boot_devices);
5072 }
95387491
JK		 5073 if (get_param_value(buf, sizeof(buf),
5074 "menu", optarg)) {
5075 if (!strcmp(buf, "on")) {
5076 boot_menu = 1;
5077 } else if (!strcmp(buf, "off")) {
5078 boot_menu = 0;
5079 } else {
5080 fprintf(stderr,
5081 "qemu: invalid option value '%s'\n",
5082 buf);
5083 exit(1);
5084 }
5085 }
e0f084bf 5086 }
36b486bb
FB		 5087 }
5088 break;
cd6f1169 5089 case QEMU_OPTION_fda:
cd6f1169 5090 case QEMU_OPTION_fdb:
609497ab 5091 drive_add(optarg, FD_ALIAS, popt->index - QEMU_OPTION_fda);
c45886db 5092 break;
52ca8d6a
FB		 5093#ifdef TARGET_I386
5094 case QEMU_OPTION_no_fd_bootchk:
5095 fd_bootchk = 0;
5096 break;
5097#endif
a1ea458f
MM		 5098 case QEMU_OPTION_netdev:
5099 if (net_client_parse(&qemu_netdev_opts, optarg) == -1) {
5100 exit(1);
5101 }
5102 break;
7c9d8e07 5103 case QEMU_OPTION_net:
7f161aae 5104 if (net_client_parse(&qemu_net_opts, optarg) == -1) {
c4b1fcc0
FB		 5105 exit(1);
5106 }
702c651c 5107 break;
c7f74643
FB		 5108#ifdef CONFIG_SLIRP
5109 case QEMU_OPTION_tftp:
ad196a9d 5110 legacy_tftp_prefix = optarg;
9bf05444 5111 break;
47d5d01a 5112 case QEMU_OPTION_bootp:
ad196a9d 5113 legacy_bootp_filename = optarg;
47d5d01a 5114 break;
c94c8d64 5115#ifndef _WIN32
9d728e8c 5116 case QEMU_OPTION_smb:
0752706d
MA		 5117 if (net_slirp_smb(optarg) < 0)
5118 exit(1);
9d728e8c 5119 break;
c94c8d64 5120#endif
9bf05444 5121 case QEMU_OPTION_redir:
0752706d
MA		 5122 if (net_slirp_redir(optarg) < 0)
5123 exit(1);
9bf05444 5124 break;
c7f74643 5125#endif
dc72ac14 5126 case QEMU_OPTION_bt:
bd3c948d 5127 add_device_config(DEV_BT, optarg);
dc72ac14 5128 break;
1d14ffa9 5129#ifdef HAS_AUDIO
1d14ffa9
FB		 5130 case QEMU_OPTION_audio_help:
5131 AUD_help ();
5132 exit (0);
5133 break;
5134 case QEMU_OPTION_soundhw:
5135 select_soundhw (optarg);
5136 break;
5137#endif
cd6f1169 5138 case QEMU_OPTION_h:
15f82208 5139 help(0);
cd6f1169 5140 break;
9bd7e6d9
PB		 5141 case QEMU_OPTION_version:
5142 version();
5143 exit(0);
5144 break;
00f82b8a
AJ		 5145 case QEMU_OPTION_m: {
5146 uint64_t value;
5147 char *ptr;
5148
5149 value = strtoul(optarg, &ptr, 10);
5150 switch (*ptr) {
5151 case 0: case 'M': case 'm':
5152 value <<= 20;
5153 break;
5154 case 'G': case 'g':
5155 value <<= 30;
5156 break;
5157 default:
5158 fprintf(stderr, "qemu: invalid ram size: %s\n", optarg);
cd6f1169
FB		 5159 exit(1);
5160 }
00f82b8a
AJ		 5161
5162 /* On 32-bit hosts, QEMU is limited by virtual address space */
4a1418e0 5163 if (value > (2047 << 20) && HOST_LONG_BITS == 32) {
00f82b8a
AJ		 5164 fprintf(stderr, "qemu: at most 2047 MB RAM can be simulated\n");
5165 exit(1);
5166 }
c227f099 5167 if (value != (uint64_t)(ram_addr_t)value) {
00f82b8a
AJ		 5168 fprintf(stderr, "qemu: ram size too large\n");
5169 exit(1);
5170 }
5171 ram_size = value;
cd6f1169 5172 break;
00f82b8a 5173 }
cd6f1169
FB		 5174 case QEMU_OPTION_d:
5175 {
5176 int mask;
c7cd6a37 5177 const CPULogItem *item;
3b46e624 5178
cd6f1169
FB		 5179 mask = cpu_str_to_log_mask(optarg);
5180 if (!mask) {
5181 printf("Log items (comma separated):\n");
f193c797
FB		 5182 for(item = cpu_log_items; item->mask != 0; item++) {
5183 printf("%-10s %s\n", item->name, item->help);
5184 }
5185 exit(1);
cd6f1169
FB		 5186 }
5187 cpu_set_log(mask);
f193c797 5188 }
cd6f1169 5189 break;
cd6f1169 5190 case QEMU_OPTION_s:
59030a8c 5191 gdbstub_dev = "tcp::" DEFAULT_GDBSTUB_PORT;
cd6f1169 5192 break;
59030a8c
AL		 5193 case QEMU_OPTION_gdb:
5194 gdbstub_dev = optarg;
cd6f1169 5195 break;
cd6f1169 5196 case QEMU_OPTION_L:
5cea8590 5197 data_dir = optarg;
cd6f1169 5198 break;
1192dad8
JM		 5199 case QEMU_OPTION_bios:
5200 bios_name = optarg;
5201 break;
1b530a6d
AJ		 5202 case QEMU_OPTION_singlestep:
5203 singlestep = 1;
5204 break;
cd6f1169 5205 case QEMU_OPTION_S:
3c07f8e8 5206 autostart = 0;
cd6f1169 5207 break;
3d11d0eb
FB		 5208 case QEMU_OPTION_k:
5209 keyboard_layout = optarg;
5210 break;
ee22c2f7
FB		 5211 case QEMU_OPTION_localtime:
5212 rtc_utc = 0;
5213 break;
3893c124 5214 case QEMU_OPTION_vga:
5215 select_vgahw (optarg);
1bfe856e 5216 break;
5824d651 5217#if defined(TARGET_PPC) || defined(TARGET_SPARC)
e9b137c2
FB		 5218 case QEMU_OPTION_g:
5219 {
5220 const char *p;
5221 int w, h, depth;
5222 p = optarg;
5223 w = strtol(p, (char **)&p, 10);
5224 if (w <= 0) {
5225 graphic_error:
5226 fprintf(stderr, "qemu: invalid resolution or depth\n");
5227 exit(1);
5228 }
5229 if (*p != 'x')
5230 goto graphic_error;
5231 p++;
5232 h = strtol(p, (char **)&p, 10);
5233 if (h <= 0)
5234 goto graphic_error;
5235 if (*p == 'x') {
5236 p++;
5237 depth = strtol(p, (char **)&p, 10);
5fafdf24 5238 if (depth != 8 && depth != 15 && depth != 16 &&
e9b137c2
FB		 5239 depth != 24 && depth != 32)
5240 goto graphic_error;
5241 } else if (*p == '\0') {
5242 depth = graphic_depth;
5243 } else {
5244 goto graphic_error;
5245 }
3b46e624 5246
e9b137c2
FB		 5247 graphic_width = w;
5248 graphic_height = h;
5249 graphic_depth = depth;
5250 }
5251 break;
5824d651 5252#endif
20d8a3ed
TS		 5253 case QEMU_OPTION_echr:
5254 {
5255 char *r;
5256 term_escape_char = strtol(optarg, &r, 0);
5257 if (r == optarg)
5258 printf("Bad argument to echr\n");
5259 break;
5260 }
82c643ff 5261 case QEMU_OPTION_monitor:
6ca5582d
GH		 5262 monitor_parse(optarg, "readline");
5263 default_monitor = 0;
5264 break;
5265 case QEMU_OPTION_qmp:
5266 monitor_parse(optarg, "control");
abdeed06 5267 default_monitor = 0;
82c643ff 5268 break;
22a0e04b
GH		 5269 case QEMU_OPTION_mon:
5270 opts = qemu_opts_parse(&qemu_mon_opts, optarg, "chardev");
5271 if (!opts) {
5272 fprintf(stderr, "parse error: %s\n", optarg);
5273 exit(1);
5274 }
5275 default_monitor = 0;
5276 break;
191bc01b
GH		 5277 case QEMU_OPTION_chardev:
5278 opts = qemu_opts_parse(&qemu_chardev_opts, optarg, "backend");
5279 if (!opts) {
5280 fprintf(stderr, "parse error: %s\n", optarg);
5281 exit(1);
5282 }
191bc01b 5283 break;
82c643ff 5284 case QEMU_OPTION_serial:
998bbd74
GH		 5285 add_device_config(DEV_SERIAL, optarg);
5286 default_serial = 0;
82c643ff 5287 break;
9dd986cc 5288 case QEMU_OPTION_watchdog:
09aaa160
MA		 5289 if (watchdog) {
5290 fprintf(stderr,
5291 "qemu: only one watchdog option may be given\n");
5292 return 1;
5293 }
5294 watchdog = optarg;
9dd986cc
RJ		 5295 break;
5296 case QEMU_OPTION_watchdog_action:
5297 if (select_watchdog_action(optarg) == -1) {
5298 fprintf(stderr, "Unknown -watchdog-action parameter\n");
5299 exit(1);
5300 }
5301 break;
51ecf136 5302 case QEMU_OPTION_virtiocon:
aee1b935
GH		 5303 add_device_config(DEV_VIRTCON, optarg);
5304 default_virtcon = 0;
51ecf136 5305 break;
6508fe59 5306 case QEMU_OPTION_parallel:
6a5e8b0e
GH		 5307 add_device_config(DEV_PARALLEL, optarg);
5308 default_parallel = 0;
6508fe59 5309 break;
c9f398e5
PA		 5310 case QEMU_OPTION_debugcon:
5311 add_device_config(DEV_DEBUGCON, optarg);
5312 break;
d63d307f
FB		 5313 case QEMU_OPTION_loadvm:
5314 loadvm = optarg;
5315 break;
5316 case QEMU_OPTION_full_screen:
5317 full_screen = 1;
5318 break;
667accab 5319#ifdef CONFIG_SDL
43523e93
TS		 5320 case QEMU_OPTION_no_frame:
5321 no_frame = 1;
5322 break;
3780e197
TS		 5323 case QEMU_OPTION_alt_grab:
5324 alt_grab = 1;
5325 break;
0ca9f8a4
DK		 5326 case QEMU_OPTION_ctrl_grab:
5327 ctrl_grab = 1;
5328 break;
667accab
TS		 5329 case QEMU_OPTION_no_quit:
5330 no_quit = 1;
5331 break;
7d957bd8 5332 case QEMU_OPTION_sdl:
993fbfdb 5333 display_type = DT_SDL;
7d957bd8 5334 break;
667accab 5335#endif
f7cce898 5336 case QEMU_OPTION_pidfile:
93815bc2 5337 pid_file = optarg;
f7cce898 5338 break;
a09db21f
FB		 5339#ifdef TARGET_I386
5340 case QEMU_OPTION_win2k_hack:
5341 win2k_install_hack = 1;
5342 break;
73822ec8
AL		 5343 case QEMU_OPTION_rtc_td_hack:
5344 rtc_td_hack = 1;
5345 break;
8a92ea2f
AL		 5346 case QEMU_OPTION_acpitable:
5347 if(acpi_table_add(optarg) < 0) {
5348 fprintf(stderr, "Wrong acpi table provided\n");
5349 exit(1);
5350 }
5351 break;
b6f6e3d3
AL		 5352 case QEMU_OPTION_smbios:
5353 if(smbios_entry_add(optarg) < 0) {
5354 fprintf(stderr, "Wrong smbios provided\n");
5355 exit(1);
5356 }
5357 break;
a09db21f 5358#endif
7ba1e619
AL		 5359#ifdef CONFIG_KVM
5360 case QEMU_OPTION_enable_kvm:
5361 kvm_allowed = 1;
7ba1e619 5362 break;
d993e026 5363#endif
bb36d470
FB		 5364 case QEMU_OPTION_usb:
5365 usb_enabled = 1;
5366 break;
a594cfbf
FB		 5367 case QEMU_OPTION_usbdevice:
5368 usb_enabled = 1;
bd3c948d
GH		 5369 add_device_config(DEV_USB, optarg);
5370 break;
5371 case QEMU_OPTION_device:
b386becf 5372 if (!qemu_opts_parse(&qemu_device_opts, optarg, "driver")) {
f31d07d1
GH		 5373 exit(1);
5374 }
a594cfbf 5375 break;
6a00d601 5376 case QEMU_OPTION_smp:
dc6b1c09 5377 smp_parse(optarg);
b2097003 5378 if (smp_cpus < 1) {
6a00d601
FB		 5379 fprintf(stderr, "Invalid number of CPUs\n");
5380 exit(1);
5381 }
6be68d7e
JS		 5382 if (max_cpus < smp_cpus) {
5383 fprintf(stderr, "maxcpus must be equal to or greater than "
5384 "smp\n");
5385 exit(1);
5386 }
5387 if (max_cpus > 255) {
5388 fprintf(stderr, "Unsupported number of maxcpus\n");
5389 exit(1);
5390 }
6a00d601 5391 break;
24236869 5392 case QEMU_OPTION_vnc:
993fbfdb 5393 display_type = DT_VNC;
73fc9742 5394 vnc_display = optarg;
24236869 5395 break;
5824d651 5396#ifdef TARGET_I386
6515b203
FB		 5397 case QEMU_OPTION_no_acpi:
5398 acpi_enabled = 0;
5399 break;
16b29ae1
AL		 5400 case QEMU_OPTION_no_hpet:
5401 no_hpet = 1;
5402 break;
7d4c3d53
MA		 5403 case QEMU_OPTION_balloon:
5404 if (balloon_parse(optarg) < 0) {
5405 fprintf(stderr, "Unknown -balloon argument %s\n", optarg);
5406 exit(1);
5407 }
df97b920 5408 break;
5824d651 5409#endif
d1beab82
FB		 5410 case QEMU_OPTION_no_reboot:
5411 no_reboot = 1;
5412 break;
b2f76161
AJ		 5413 case QEMU_OPTION_no_shutdown:
5414 no_shutdown = 1;
5415 break;
9467cd46
AZ		 5416 case QEMU_OPTION_show_cursor:
5417 cursor_hide = 0;
5418 break;
8fcb1b90
BS		 5419 case QEMU_OPTION_uuid:
5420 if(qemu_uuid_parse(optarg, qemu_uuid) < 0) {
5421 fprintf(stderr, "Fail to parse UUID string."
5422 " Wrong format.\n");
5423 exit(1);
5424 }
5425 break;
5824d651 5426#ifndef _WIN32
71e3ceb8
TS		 5427 case QEMU_OPTION_daemonize:
5428 daemonize = 1;
5429 break;
5824d651 5430#endif
9ae02555
TS		 5431 case QEMU_OPTION_option_rom:
5432 if (nb_option_roms >= MAX_OPTION_ROMS) {
5433 fprintf(stderr, "Too many option ROMs\n");
5434 exit(1);
5435 }
5436 option_rom[nb_option_roms] = optarg;
5437 nb_option_roms++;
5438 break;
5824d651 5439#if defined(TARGET_ARM) || defined(TARGET_M68K)
8e71621f
PB		 5440 case QEMU_OPTION_semihosting:
5441 semihosting_enabled = 1;
5442 break;
5824d651 5443#endif
c35734b2 5444 case QEMU_OPTION_name:
1889465a
AK		 5445 qemu_name = qemu_strdup(optarg);
5446 {
5447 char *p = strchr(qemu_name, ',');
5448 if (p != NULL) {
5449 *p++ = 0;
5450 if (strncmp(p, "process=", 8)) {
5451 fprintf(stderr, "Unknown subargument %s to -name", p);
5452 exit(1);
5453 }
5454 p += 8;
5455 set_proc_name(p);
5456 }
5457 }
c35734b2 5458 break;
95efd11c 5459#if defined(TARGET_SPARC) || defined(TARGET_PPC)
66508601
BS		 5460 case QEMU_OPTION_prom_env:
5461 if (nb_prom_envs >= MAX_PROM_ENVS) {
5462 fprintf(stderr, "Too many prom variables\n");
5463 exit(1);
5464 }
5465 prom_envs[nb_prom_envs] = optarg;
5466 nb_prom_envs++;
5467 break;
2b8f2d41
AZ		 5468#endif
5469#ifdef TARGET_ARM
5470 case QEMU_OPTION_old_param:
5471 old_param = 1;
05ebd537 5472 break;
66508601 5473#endif
f3dcfada
TS		 5474 case QEMU_OPTION_clock:
5475 configure_alarms(optarg);
5476 break;
7e0af5d0 5477 case QEMU_OPTION_startdate:
1ed2fc1f
JK		 5478 configure_rtc_date_offset(optarg, 1);
5479 break;
5480 case QEMU_OPTION_rtc:
5481 opts = qemu_opts_parse(&qemu_rtc_opts, optarg, NULL);
5482 if (!opts) {
5483 fprintf(stderr, "parse error: %s\n", optarg);
5484 exit(1);
7e0af5d0 5485 }
1ed2fc1f 5486 configure_rtc(opts);
7e0af5d0 5487 break;
26a5f13b
FB		 5488 case QEMU_OPTION_tb_size:
5489 tb_size = strtol(optarg, NULL, 0);
5490 if (tb_size < 0)
5491 tb_size = 0;
5492 break;
2e70f6ef
PB		 5493 case QEMU_OPTION_icount:
5494 use_icount = 1;
5495 if (strcmp(optarg, "auto") == 0) {
5496 icount_time_shift = -1;
5497 } else {
5498 icount_time_shift = strtol(optarg, NULL, 0);
5499 }
5500 break;
5bb7910a
AL		 5501 case QEMU_OPTION_incoming:
5502 incoming = optarg;
5503 break;
d8c208dd
GH		 5504 case QEMU_OPTION_nodefaults:
5505 default_serial = 0;
5506 default_parallel = 0;
aee1b935 5507 default_virtcon = 0;
d8c208dd
GH		 5508 default_monitor = 0;
5509 default_vga = 0;
cb4522cc 5510 default_net = 0;
ac33f8fa
GH		 5511 default_floppy = 0;
5512 default_cdrom = 0;
5513 default_sdcard = 0;
d8c208dd 5514 break;
5824d651 5515#ifndef _WIN32
0858532e
AL		 5516 case QEMU_OPTION_chroot:
5517 chroot_dir = optarg;
5518 break;
5519 case QEMU_OPTION_runas:
5520 run_as = optarg;
5521 break;
e37630ca
AL		 5522#endif
5523#ifdef CONFIG_XEN
5524 case QEMU_OPTION_xen_domid:
5525 xen_domid = atoi(optarg);
5526 break;
5527 case QEMU_OPTION_xen_create:
5528 xen_mode = XEN_CREATE;
5529 break;
5530 case QEMU_OPTION_xen_attach:
5531 xen_mode = XEN_ATTACH;
5532 break;
5824d651 5533#endif
715a664a
GH		 5534 case QEMU_OPTION_readconfig:
5535 {
5536 FILE *fp;
5537 fp = fopen(optarg, "r");
5538 if (fp == NULL) {
5539 fprintf(stderr, "open %s: %s\n", optarg, strerror(errno));
5540 exit(1);
5541 }
5542 if (qemu_config_parse(fp) != 0) {
5543 exit(1);
5544 }
5545 fclose(fp);
5546 break;
5547 }
5548 case QEMU_OPTION_writeconfig:
5549 {
5550 FILE *fp;
5551 if (strcmp(optarg, "-") == 0) {
5552 fp = stdout;
5553 } else {
5554 fp = fopen(optarg, "w");
5555 if (fp == NULL) {
5556 fprintf(stderr, "open %s: %s\n", optarg, strerror(errno));
5557 exit(1);
5558 }
5559 }
5560 qemu_config_write(fp);
5561 fclose(fp);
5562 break;
5563 }
cd6f1169 5564 }
0824d6fc
FB		 5565 }
5566 }
330d0414 5567
5cea8590
PB		 5568 /* If no data_dir is specified then try to find it relative to the
5569 executable path. */
5570 if (!data_dir) {
5571 data_dir = find_datadir(argv[0]);
5572 }
5573 /* If all else fails use the install patch specified when building. */
5574 if (!data_dir) {
5575 data_dir = CONFIG_QEMU_SHAREDIR;
5576 }
5577
6be68d7e
JS		 5578 /*
5579 * Default to max_cpus = smp_cpus, in case the user doesn't
5580 * specify a max_cpus value.
5581 */
5582 if (!max_cpus)
5583 max_cpus = smp_cpus;
5584
3d878caa 5585 machine->max_cpus = machine->max_cpus ?: 1; /* Default to UP */
b2097003
AL		 5586 if (smp_cpus > machine->max_cpus) {
5587 fprintf(stderr, "Number of SMP cpus requested (%d), exceeds max cpus "
5588 "supported by machine `%s' (%d)\n", smp_cpus, machine->name,
5589 machine->max_cpus);
5590 exit(1);
5591 }
5592
998bbd74 5593 qemu_opts_foreach(&qemu_device_opts, default_driver_check, NULL, 0);
d8bcbabf 5594 qemu_opts_foreach(&qemu_global_opts, default_driver_check, NULL, 0);
998bbd74 5595
986c5f78
GH		 5596 if (machine->no_serial) {
5597 default_serial = 0;
5598 }
5599 if (machine->no_parallel) {
5600 default_parallel = 0;
5601 }
5602 if (!machine->use_virtcon) {
5603 default_virtcon = 0;
5604 }
5605 if (machine->no_vga) {
5606 default_vga = 0;
5607 }
ac33f8fa
GH		 5608 if (machine->no_floppy) {
5609 default_floppy = 0;
5610 }
5611 if (machine->no_cdrom) {
5612 default_cdrom = 0;
5613 }
5614 if (machine->no_sdcard) {
5615 default_sdcard = 0;
5616 }
986c5f78 5617
993fbfdb 5618 if (display_type == DT_NOGRAPHIC) {
6a5e8b0e
GH		 5619 if (default_parallel)
5620 add_device_config(DEV_PARALLEL, "null");
e1c09175
GH		 5621 if (default_serial && default_monitor) {
5622 add_device_config(DEV_SERIAL, "mon:stdio");
986c5f78
GH		 5623 } else if (default_virtcon && default_monitor) {
5624 add_device_config(DEV_VIRTCON, "mon:stdio");
e1c09175
GH		 5625 } else {
5626 if (default_serial)
5627 add_device_config(DEV_SERIAL, "stdio");
986c5f78
GH		 5628 if (default_virtcon)
5629 add_device_config(DEV_VIRTCON, "stdio");
e1c09175 5630 if (default_monitor)
6ca5582d 5631 monitor_parse("stdio", "readline");
e1c09175 5632 }
998bbd74
GH		 5633 } else {
5634 if (default_serial)
5635 add_device_config(DEV_SERIAL, "vc:80Cx24C");
6a5e8b0e
GH		 5636 if (default_parallel)
5637 add_device_config(DEV_PARALLEL, "vc:80Cx24C");
abdeed06 5638 if (default_monitor)
6ca5582d 5639 monitor_parse("vc:80Cx24C", "readline");
38536da1
AG		 5640 if (default_virtcon)
5641 add_device_config(DEV_VIRTCON, "vc:80Cx24C");
bc0129d9 5642 }
64465297
GH		 5643 if (default_vga)
5644 vga_interface_type = VGA_CIRRUS;
bc0129d9 5645
1a688d3b
GH		 5646 if (qemu_opts_foreach(&qemu_chardev_opts, chardev_init_func, NULL, 1) != 0)
5647 exit(1);
5648
71e3ceb8 5649#ifndef _WIN32
71e3ceb8
TS		 5650 if (daemonize) {
5651 pid_t pid;
5652
5653 if (pipe(fds) == -1)
5654 exit(1);
5655
5656 pid = fork();
5657 if (pid > 0) {
5658 uint8_t status;
5659 ssize_t len;
5660
5661 close(fds[1]);
5662
5663 again:
93815bc2
TS		 5664 len = read(fds[0], &status, 1);
5665 if (len == -1 && (errno == EINTR))
5666 goto again;
5667
5668 if (len != 1)
5669 exit(1);
5670 else if (status == 1) {
850810d0 5671 fprintf(stderr, "Could not acquire pidfile: %s\n", strerror(errno));
93815bc2
TS		 5672 exit(1);
5673 } else
5674 exit(0);
71e3ceb8 5675 } else if (pid < 0)
93815bc2 5676 exit(1);
71e3ceb8 5677
40ff6d7e
KW		 5678 close(fds[0]);
5679 qemu_set_cloexec(fds[1]);
5680
71e3ceb8
TS		 5681 setsid();
5682
5683 pid = fork();
5684 if (pid > 0)
5685 exit(0);
5686 else if (pid < 0)
5687 exit(1);
5688
5689 umask(027);
71e3ceb8
TS		 5690
5691 signal(SIGTSTP, SIG_IGN);
5692 signal(SIGTTOU, SIG_IGN);
5693 signal(SIGTTIN, SIG_IGN);
5694 }
099fe236 5695#endif
71e3ceb8 5696
aa26bb2d 5697 if (pid_file && qemu_create_pidfile(pid_file) != 0) {
099fe236 5698#ifndef _WIN32
93815bc2
TS		 5699 if (daemonize) {
5700 uint8_t status = 1;
dc330e28
KS		 5701 if (write(fds[1], &status, 1) != 1) {
5702 perror("daemonize. Writing to pipe\n");
5703 }
93815bc2 5704 } else
099fe236 5705#endif
850810d0 5706 fprintf(stderr, "Could not acquire pid file: %s\n", strerror(errno));
93815bc2
TS		 5707 exit(1);
5708 }
5709
214910a7
MT		 5710 if (kvm_enabled()) {
5711 int ret;
5712
5713 ret = kvm_init(smp_cpus);
5714 if (ret < 0) {
5715 fprintf(stderr, "failed to initialize KVM\n");
5716 exit(1);
5717 }
5718 }
5719
3fcf7b6b
AL		 5720 if (qemu_init_main_loop()) {
5721 fprintf(stderr, "qemu_init_main_loop failed\n");
5722 exit(1);
5723 }
a20dd508 5724 linux_boot = (kernel_filename != NULL);
6c41b272 5725
f8d39c01
TS		 5726 if (!linux_boot && *kernel_cmdline != '\0') {
5727 fprintf(stderr, "-append only allowed with -kernel option\n");
5728 exit(1);
5729 }
5730
5731 if (!linux_boot && initrd_filename != NULL) {
5732 fprintf(stderr, "-initrd only allowed with -kernel option\n");
5733 exit(1);
5734 }
5735
bf65f53f
FN		 5736#ifndef _WIN32
5737 /* Win32 doesn't support line-buffering and requires size >= 2 */
b118d61e 5738 setvbuf(stdout, NULL, _IOLBF, 0);
bf65f53f 5739#endif
3b46e624 5740
7183b4b4
AL		 5741 if (init_timer_alarm() < 0) {
5742 fprintf(stderr, "could not initialize alarm timer\n");
5743 exit(1);
5744 }
2e70f6ef
PB		 5745 if (use_icount && icount_time_shift < 0) {
5746 use_icount = 2;
5747 /* 125MIPS seems a reasonable initial guess at the guest speed.
5748 It will be corrected fairly quickly anyway. */
5749 icount_time_shift = 3;
5750 init_icount_adjust();
5751 }
634fce96 5752
fd1dff4b
FB		 5753#ifdef _WIN32
5754 socket_init();
5755#endif
5756
dc1c9fe8
MM		 5757 if (net_init_clients() < 0) {
5758 exit(1);
702c651c 5759 }
f1510b2c 5760
406c8df3
GC		 5761 net_boot = (boot_devices_bitmap >> ('n' - 'a')) & 0xF;
5762 net_set_boot_mask(net_boot);
5763
dc72ac14 5764 /* init the bluetooth world */
bd3c948d
GH		 5765 if (foreach_device_config(DEV_BT, bt_parse))
5766 exit(1);
dc72ac14 5767
0824d6fc 5768 /* init the memory */
94a6b54f
PB		 5769 if (ram_size == 0)
5770 ram_size = DEFAULT_RAM_SIZE * 1024 * 1024;
9ae02555 5771
26a5f13b
FB		 5772 /* init the dynamic translator */
5773 cpu_exec_init_all(tb_size * 1024 * 1024);
5774
eb852011 5775 bdrv_init_with_whitelist();
c4b1fcc0 5776
c163b5ca
LS		 5777 blk_mig_init();
5778
ac33f8fa 5779 if (default_cdrom) {
aa40fc9c
GH		 5780 /* we always create the cdrom drive, even if no disk is there */
5781 drive_add(NULL, CDROM_ALIAS);
ac33f8fa 5782 }
c4b1fcc0 5783
ac33f8fa 5784 if (default_floppy) {
aa40fc9c
GH		 5785 /* we always create at least one floppy */
5786 drive_add(NULL, FD_ALIAS, 0);
ac33f8fa 5787 }
86f55663 5788
ac33f8fa 5789 if (default_sdcard) {
aa40fc9c
GH		 5790 /* we always create one sd slot, even if no card is in it */
5791 drive_add(NULL, SD_ALIAS);
5792 }
9d413d1d 5793
e4bcb14c 5794 /* open the virtual block devices */
9dfd7c7a 5795 if (snapshot)
7282a033
GH		 5796 qemu_opts_foreach(&qemu_drive_opts, drive_enable_snapshot, NULL, 0);
5797 if (qemu_opts_foreach(&qemu_drive_opts, drive_init_func, machine, 1) != 0)
9dfd7c7a 5798 exit(1);
3e3d5815 5799
2faf58cd 5800 vmstate_register(0, &vmstate_timers ,&timers_state);
c163b5ca
LS		 5801 register_savevm_live("ram", 0, 3, NULL, ram_save_live, NULL,
5802 ram_load, NULL);
8a7ddc38 5803
268a362c
AL		 5804 if (nb_numa_nodes > 0) {
5805 int i;
5806
5807 if (nb_numa_nodes > smp_cpus) {
5808 nb_numa_nodes = smp_cpus;
5809 }
5810
5811 /* If no memory size if given for any node, assume the default case
5812 * and distribute the available memory equally across all nodes
5813 */
5814 for (i = 0; i < nb_numa_nodes; i++) {
5815 if (node_mem[i] != 0)
5816 break;
5817 }
5818 if (i == nb_numa_nodes) {
5819 uint64_t usedmem = 0;
5820
5821 /* On Linux, the each node's border has to be 8MB aligned,
5822 * the final node gets the rest.
5823 */
5824 for (i = 0; i < nb_numa_nodes - 1; i++) {
5825 node_mem[i] = (ram_size / nb_numa_nodes) & ~((1 << 23UL) - 1);
5826 usedmem += node_mem[i];
5827 }
5828 node_mem[i] = ram_size - usedmem;
5829 }
5830
5831 for (i = 0; i < nb_numa_nodes; i++) {
5832 if (node_cpumask[i] != 0)
5833 break;
5834 }
5835 /* assigning the VCPUs round-robin is easier to implement, guest OSes
5836 * must cope with this anyway, because there are BIOSes out there in
5837 * real machines which also use this scheme.
5838 */
5839 if (i == nb_numa_nodes) {
5840 for (i = 0; i < smp_cpus; i++) {
5841 node_cpumask[i % nb_numa_nodes] |= 1 << i;
5842 }
5843 }
5844 }
5845
998bbd74
GH		 5846 if (foreach_device_config(DEV_SERIAL, serial_parse) < 0)
5847 exit(1);
6a5e8b0e
GH		 5848 if (foreach_device_config(DEV_PARALLEL, parallel_parse) < 0)
5849 exit(1);
aee1b935
GH		 5850 if (foreach_device_config(DEV_VIRTCON, virtcon_parse) < 0)
5851 exit(1);
c9f398e5
PA		 5852 if (foreach_device_config(DEV_DEBUGCON, debugcon_parse) < 0)
5853 exit(1);
2796dae0 5854
aae9460e
PB		 5855 module_call_init(MODULE_INIT_DEVICE);
5856
ff952ba2
MA		 5857 if (qemu_opts_foreach(&qemu_device_opts, device_help_func, NULL, 0) != 0)
5858 exit(0);
5859
09aaa160
MA		 5860 if (watchdog) {
5861 i = select_watchdog(watchdog);
5862 if (i > 0)
5863 exit (i == 1 ? 1 : 0);
5864 }
5865
b6b61144 5866 if (machine->compat_props) {
458fb679 5867 qdev_prop_register_global_list(machine->compat_props);
b6b61144 5868 }
d0fef6fb
GH		 5869 qemu_add_globals();
5870
fbe1b595 5871 machine->init(ram_size, boot_devices,
3023f332
AL		 5872 kernel_filename, kernel_cmdline, initrd_filename, cpu_model);
5873
268a362c 5874
67b3b71d
JQ		 5875#ifndef _WIN32
5876 /* must be after terminal init, SDL library changes signal handlers */
5877 sighandler_setup();
5878#endif
5879
268a362c
AL		 5880 for (env = first_cpu; env != NULL; env = env->next_cpu) {
5881 for (i = 0; i < nb_numa_nodes; i++) {
5882 if (node_cpumask[i] & (1 << env->cpu_index)) {
5883 env->numa_node = i;
5884 }
5885 }
5886 }
5887
6f338c34
AL		 5888 current_machine = machine;
5889
3023f332
AL		 5890 /* init USB devices */
5891 if (usb_enabled) {
0752706d
MA		 5892 if (foreach_device_config(DEV_USB, usb_parse) < 0)
5893 exit(1);
3023f332
AL		 5894 }
5895
bd3c948d 5896 /* init generic devices */
f31d07d1 5897 if (qemu_opts_foreach(&qemu_device_opts, device_init_func, NULL, 1) != 0)
bd3c948d
GH		 5898 exit(1);
5899
668680f7
MA		 5900 net_check_clients();
5901
8f391ab4
AL		 5902 if (!display_state)
5903 dumb_display_init();
3023f332
AL		 5904 /* just use the first displaystate for the moment */
5905 ds = display_state;
993fbfdb
AL		 5906
5907 if (display_type == DT_DEFAULT) {
5908#if defined(CONFIG_SDL) || defined(CONFIG_COCOA)
5909 display_type = DT_SDL;
5910#else
5911 display_type = DT_VNC;
5912 vnc_display = "localhost:0,to=99";
5913 show_vnc_port = 1;
5914#endif
5915 }
5916
5917
5918 switch (display_type) {
5919 case DT_NOGRAPHIC:
5920 break;
4d3b6f6e 5921#if defined(CONFIG_CURSES)
993fbfdb
AL		 5922 case DT_CURSES:
5923 curses_display_init(ds, full_screen);
5924 break;
4d3b6f6e 5925#endif
5b0753e0 5926#if defined(CONFIG_SDL)
993fbfdb
AL		 5927 case DT_SDL:
5928 sdl_display_init(ds, full_screen, no_frame);
5929 break;
5b0753e0 5930#elif defined(CONFIG_COCOA)
993fbfdb
AL		 5931 case DT_SDL:
5932 cocoa_display_init(ds, full_screen);
5933 break;
313aa567 5934#endif
993fbfdb
AL		 5935 case DT_VNC:
5936 vnc_display_init(ds);
5937 if (vnc_display_open(ds, vnc_display) < 0)
5938 exit(1);
f92f8afe 5939
993fbfdb
AL		 5940 if (show_vnc_port) {
5941 printf("VNC server running on `%s'\n", vnc_display_local_addr(ds));
f92f8afe 5942 }
993fbfdb
AL		 5943 break;
5944 default:
5945 break;
313aa567 5946 }
7d957bd8 5947 dpy_resize(ds);
5b08fc10 5948
3023f332
AL		 5949 dcl = ds->listeners;
5950 while (dcl != NULL) {
5951 if (dcl->dpy_refresh != NULL) {
5952 ds->gui_timer = qemu_new_timer(rt_clock, gui_update, ds);
5953 qemu_mod_timer(ds->gui_timer, qemu_get_clock(rt_clock));
20d8a3ed 5954 }
3023f332 5955 dcl = dcl->next;
20d8a3ed 5956 }
3023f332 5957
993fbfdb 5958 if (display_type == DT_NOGRAPHIC || display_type == DT_VNC) {
9043b62d
BS		 5959 nographic_timer = qemu_new_timer(rt_clock, nographic_update, NULL);
5960 qemu_mod_timer(nographic_timer, qemu_get_clock(rt_clock));
5961 }
5962
2796dae0
AL		 5963 text_consoles_set_display(display_state);
5964
88589343
GH		 5965 if (qemu_opts_foreach(&qemu_mon_opts, mon_init_func, NULL, 1) != 0)
5966 exit(1);
82c643ff 5967
59030a8c
AL		 5968 if (gdbstub_dev && gdbserver_start(gdbstub_dev) < 0) {
5969 fprintf(stderr, "qemu: could not open gdbserver on device '%s'\n",
5970 gdbstub_dev);
5971 exit(1);
45669e00 5972 }
45669e00 5973
3418bd25
GH		 5974 qdev_machine_creation_done();
5975
15ff7705
GH		 5976 if (rom_load_all() != 0) {
5977 fprintf(stderr, "rom loading failed\n");
5978 exit(1);
5979 }
45a50b16 5980
504c2948 5981 qemu_system_reset();
05f2401e
JQ		 5982 if (loadvm) {
5983 if (load_vmstate(cur_mon, loadvm) < 0) {
5984 autostart = 0;
5985 }
5986 }
d63d307f 5987
2bb8c10c 5988 if (incoming) {
5bb7910a 5989 qemu_start_incoming_migration(incoming);
6b99dadc 5990 } else if (autostart) {
c0f4ce77 5991 vm_start();
6b99dadc 5992 }
ffd843bc 5993
b9e82a59 5994#ifndef _WIN32
71e3ceb8
TS		 5995 if (daemonize) {
5996 uint8_t status = 0;
5997 ssize_t len;
71e3ceb8
TS		 5998
5999 again1:
6000 len = write(fds[1], &status, 1);
6001 if (len == -1 && (errno == EINTR))
6002 goto again1;
6003
6004 if (len != 1)
6005 exit(1);
6006
dc330e28
KS		 6007 if (chdir("/")) {
6008 perror("not able to chdir to /");
6009 exit(1);
6010 }
40ff6d7e 6011 TFR(fd = qemu_open("/dev/null", O_RDWR));
71e3ceb8
TS		 6012 if (fd == -1)
6013 exit(1);
0858532e 6014 }
71e3ceb8 6015
0858532e
AL		 6016 if (run_as) {
6017 pwd = getpwnam(run_as);
6018 if (!pwd) {
6019 fprintf(stderr, "User \"%s\" doesn't exist\n", run_as);
6020 exit(1);
6021 }
6022 }
6023
6024 if (chroot_dir) {
6025 if (chroot(chroot_dir) < 0) {
6026 fprintf(stderr, "chroot failed\n");
6027 exit(1);
6028 }
dc330e28
KS		 6029 if (chdir("/")) {
6030 perror("not able to chdir to /");
6031 exit(1);
6032 }
0858532e
AL		 6033 }
6034
6035 if (run_as) {
6036 if (setgid(pwd->pw_gid) < 0) {
6037 fprintf(stderr, "Failed to setgid(%d)\n", pwd->pw_gid);
6038 exit(1);
6039 }
6040 if (setuid(pwd->pw_uid) < 0) {
6041 fprintf(stderr, "Failed to setuid(%d)\n", pwd->pw_uid);
6042 exit(1);
6043 }
6044 if (setuid(0) != -1) {
6045 fprintf(stderr, "Dropping privileges failed\n");
6046 exit(1);
6047 }
6048 }
0858532e
AL		 6049
6050 if (daemonize) {
6051 dup2(fd, 0);
6052 dup2(fd, 1);
6053 dup2(fd, 2);
71e3ceb8 6054
0858532e 6055 close(fd);
71e3ceb8 6056 }
b9e82a59 6057#endif
71e3ceb8 6058
8a7ddc38 6059 main_loop();
40c3bac3 6060 quit_timers();
63a01ef8 6061 net_cleanup();
b46a8906 6062
0824d6fc
FB		 6063 return 0;
6064}
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