]> git.proxmox.com Git - mirror_qemu.git/blame - vl.c
projects / mirror_qemu.git / blame
? search:
summary | shortlog | log | commit | commitdiff | tree
blob | blame (incremental) | history | HEAD
qemu-option: Make qemu_opts_foreach() accumulate return values
[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
0fdddf80 934static void init_clocks(void)
1dce7c3c
FB		 935{
936 init_get_clock();
0fdddf80
JK		 937 rt_clock = qemu_new_clock(QEMU_CLOCK_REALTIME);
938 vm_clock = qemu_new_clock(QEMU_CLOCK_VIRTUAL);
21d5d12b 939 host_clock = qemu_new_clock(QEMU_CLOCK_HOST);
6875204c
JK		 940
941 rtc_clock = host_clock;
1dce7c3c
FB		 942}
943
8a7ddc38
FB		 944/* save a timer */
945void qemu_put_timer(QEMUFile *f, QEMUTimer *ts)
946{
947 uint64_t expire_time;
948
949 if (qemu_timer_pending(ts)) {
950 expire_time = ts->expire_time;
951 } else {
952 expire_time = -1;
953 }
954 qemu_put_be64(f, expire_time);
955}
956
957void qemu_get_timer(QEMUFile *f, QEMUTimer *ts)
958{
959 uint64_t expire_time;
960
961 expire_time = qemu_get_be64(f);
962 if (expire_time != -1) {
963 qemu_mod_timer(ts, expire_time);
964 } else {
965 qemu_del_timer(ts);
966 }
967}
968
2faf58cd
JQ		 969static const VMStateDescription vmstate_timers = {
970 .name = "timer",
971 .version_id = 2,
972 .minimum_version_id = 1,
973 .minimum_version_id_old = 1,
974 .fields = (VMStateField []) {
975 VMSTATE_INT64(cpu_ticks_offset, TimersState),
274dfed8 976 VMSTATE_INT64(dummy, TimersState),
2faf58cd
JQ		 977 VMSTATE_INT64_V(cpu_clock_offset, TimersState, 2),
978 VMSTATE_END_OF_LIST()
c88676f8 979 }
2faf58cd 980};
8a7ddc38 981
50317c7f
AL		 982static void qemu_event_increment(void);
983
67b915a5 984#ifdef _WIN32
b9e82a59
BS		 985static void CALLBACK host_alarm_handler(UINT uTimerID, UINT uMsg,
986 DWORD_PTR dwUser, DWORD_PTR dw1,
987 DWORD_PTR dw2)
67b915a5 988#else
8a7ddc38 989static void host_alarm_handler(int host_signum)
67b915a5 990#endif
8a7ddc38 991{
02ba45c5
FB		 992#if 0
993#define DISP_FREQ 1000
994 {
995 static int64_t delta_min = INT64_MAX;
996 static int64_t delta_max, delta_cum, last_clock, delta, ti;
997 static int count;
998 ti = qemu_get_clock(vm_clock);
999 if (last_clock != 0) {
1000 delta = ti - last_clock;
1001 if (delta < delta_min)
1002 delta_min = delta;
1003 if (delta > delta_max)
1004 delta_max = delta;
1005 delta_cum += delta;
1006 if (++count == DISP_FREQ) {
26a76461 1007 printf("timer: min=%" PRId64 " us max=%" PRId64 " us avg=%" PRId64 " us avg_freq=%0.3f Hz\n",
6ee093c9
JQ		 1008 muldiv64(delta_min, 1000000, get_ticks_per_sec()),
1009 muldiv64(delta_max, 1000000, get_ticks_per_sec()),
1010 muldiv64(delta_cum, 1000000 / DISP_FREQ, get_ticks_per_sec()),
1011 (double)get_ticks_per_sec() / ((double)delta_cum / DISP_FREQ));
02ba45c5
FB		 1012 count = 0;
1013 delta_min = INT64_MAX;
1014 delta_max = 0;
1015 delta_cum = 0;
1016 }
1017 }
1018 last_clock = ti;
1019 }
1020#endif
efe75411 1021 if (alarm_has_dynticks(alarm_timer) ||
2e70f6ef 1022 (!use_icount &&
0fdddf80 1023 qemu_timer_expired(active_timers[QEMU_CLOCK_VIRTUAL],
2e70f6ef 1024 qemu_get_clock(vm_clock))) ||
0fdddf80 1025 qemu_timer_expired(active_timers[QEMU_CLOCK_REALTIME],
21d5d12b
JK		 1026 qemu_get_clock(rt_clock)) ||
1027 qemu_timer_expired(active_timers[QEMU_CLOCK_HOST],
1028 qemu_get_clock(host_clock))) {
50317c7f 1029 qemu_event_increment();
e332340a 1030 if (alarm_timer) alarm_timer->flags |= ALARM_FLAG_EXPIRED;
d5d08334 1031
d6dc3d42
AL		 1032#ifndef CONFIG_IOTHREAD
1033 if (next_cpu) {
4f8eb8da 1034 /* stop the currently executing cpu because a timer occured */
d6dc3d42 1035 cpu_exit(next_cpu);
4f8eb8da 1036 }
d6dc3d42 1037#endif
43b96858 1038 timer_alarm_pending = 1;
d9f75a4e 1039 qemu_notify_event();
8a7ddc38
FB		 1040 }
1041}
1042
2e70f6ef 1043static int64_t qemu_next_deadline(void)
efe75411 1044{
21d5d12b
JK		 1045 /* To avoid problems with overflow limit this to 2^32. */
1046 int64_t delta = INT32_MAX;
efe75411 1047
0fdddf80
JK		 1048 if (active_timers[QEMU_CLOCK_VIRTUAL]) {
1049 delta = active_timers[QEMU_CLOCK_VIRTUAL]->expire_time -
2e70f6ef 1050 qemu_get_clock(vm_clock);
21d5d12b
JK		 1051 }
1052 if (active_timers[QEMU_CLOCK_HOST]) {
1053 int64_t hdelta = active_timers[QEMU_CLOCK_HOST]->expire_time -
1054 qemu_get_clock(host_clock);
1055 if (hdelta < delta)
1056 delta = hdelta;
efe75411
TS		 1057 }
1058
2e70f6ef
PB		 1059 if (delta < 0)
1060 delta = 0;
efe75411 1061
2e70f6ef
PB		 1062 return delta;
1063}
1064
f64382ba 1065#if defined(__linux__)
2e70f6ef
PB		 1066static uint64_t qemu_next_deadline_dyntick(void)
1067{
1068 int64_t delta;
1069 int64_t rtdelta;
1070
1071 if (use_icount)
1072 delta = INT32_MAX;
1073 else
1074 delta = (qemu_next_deadline() + 999) / 1000;
1075
0fdddf80
JK		 1076 if (active_timers[QEMU_CLOCK_REALTIME]) {
1077 rtdelta = (active_timers[QEMU_CLOCK_REALTIME]->expire_time -
2e70f6ef
PB		 1078 qemu_get_clock(rt_clock))*1000;
1079 if (rtdelta < delta)
1080 delta = rtdelta;
1081 }
1082
1083 if (delta < MIN_TIMER_REARM_US)
1084 delta = MIN_TIMER_REARM_US;
1085
1086 return delta;
efe75411 1087}
8632fb9a 1088#endif
efe75411 1089
fd872598
FB		 1090#ifndef _WIN32
1091
7183b4b4
AL		 1092/* Sets a specific flag */
1093static int fcntl_setfl(int fd, int flag)
1094{
1095 int flags;
1096
1097 flags = fcntl(fd, F_GETFL);
1098 if (flags == -1)
1099 return -errno;
1100
1101 if (fcntl(fd, F_SETFL, flags | flag) == -1)
1102 return -errno;
1103
1104 return 0;
1105}
1106
829309c7
FB		 1107#if defined(__linux__)
1108
fd872598
FB		 1109#define RTC_FREQ 1024
1110
de9a95f0 1111static void enable_sigio_timer(int fd)
c8994013
TS		 1112{
1113 struct sigaction act;
1114
1115 /* timer signal */
1116 sigfillset(&act.sa_mask);
1117 act.sa_flags = 0;
c8994013
TS		 1118 act.sa_handler = host_alarm_handler;
1119
1120 sigaction(SIGIO, &act, NULL);
7183b4b4 1121 fcntl_setfl(fd, O_ASYNC);
c8994013
TS		 1122 fcntl(fd, F_SETOWN, getpid());
1123}
829309c7 1124
c40ec5a9
TS		 1125static int hpet_start_timer(struct qemu_alarm_timer *t)
1126{
1127 struct hpet_info info;
1128 int r, fd;
1129
40ff6d7e 1130 fd = qemu_open("/dev/hpet", O_RDONLY);
c40ec5a9
TS		 1131 if (fd < 0)
1132 return -1;
1133
1134 /* Set frequency */
1135 r = ioctl(fd, HPET_IRQFREQ, RTC_FREQ);
1136 if (r < 0) {
1137 fprintf(stderr, "Could not configure '/dev/hpet' to have a 1024Hz timer. This is not a fatal\n"
1138 "error, but for better emulation accuracy type:\n"
1139 "'echo 1024 > /proc/sys/dev/hpet/max-user-freq' as root.\n");
1140 goto fail;
1141 }
1142
1143 /* Check capabilities */
1144 r = ioctl(fd, HPET_INFO, &info);
1145 if (r < 0)
1146 goto fail;
1147
1148 /* Enable periodic mode */
1149 r = ioctl(fd, HPET_EPI, 0);
1150 if (info.hi_flags && (r < 0))
1151 goto fail;
1152
1153 /* Enable interrupt */
1154 r = ioctl(fd, HPET_IE_ON, 0);
1155 if (r < 0)
1156 goto fail;
1157
1158 enable_sigio_timer(fd);
fcdc2129 1159 t->priv = (void *)(long)fd;
c40ec5a9
TS		 1160
1161 return 0;
1162fail:
1163 close(fd);
1164 return -1;
1165}
1166
1167static void hpet_stop_timer(struct qemu_alarm_timer *t)
1168{
fcdc2129 1169 int fd = (long)t->priv;
c40ec5a9
TS		 1170
1171 close(fd);
1172}
1173
c8994013 1174static int rtc_start_timer(struct qemu_alarm_timer *t)
fd872598 1175{
c8994013 1176 int rtc_fd;
b5a23ad4 1177 unsigned long current_rtc_freq = 0;
c8994013 1178
40ff6d7e 1179 TFR(rtc_fd = qemu_open("/dev/rtc", O_RDONLY));
fd872598
FB		 1180 if (rtc_fd < 0)
1181 return -1;
b5a23ad4
AZ		 1182 ioctl(rtc_fd, RTC_IRQP_READ, &current_rtc_freq);
1183 if (current_rtc_freq != RTC_FREQ &&
1184 ioctl(rtc_fd, RTC_IRQP_SET, RTC_FREQ) < 0) {
fd872598
FB		 1185 fprintf(stderr, "Could not configure '/dev/rtc' to have a 1024 Hz timer. This is not a fatal\n"
1186 "error, but for better emulation accuracy either use a 2.6 host Linux kernel or\n"
1187 "type 'echo 1024 > /proc/sys/dev/rtc/max-user-freq' as root.\n");
1188 goto fail;
1189 }
1190 if (ioctl(rtc_fd, RTC_PIE_ON, 0) < 0) {
1191 fail:
1192 close(rtc_fd);
1193 return -1;
1194 }
c8994013
TS		 1195
1196 enable_sigio_timer(rtc_fd);
1197
fcdc2129 1198 t->priv = (void *)(long)rtc_fd;
c8994013 1199
fd872598
FB		 1200 return 0;
1201}
1202
c8994013 1203static void rtc_stop_timer(struct qemu_alarm_timer *t)
829309c7 1204{
fcdc2129 1205 int rtc_fd = (long)t->priv;
c8994013
TS		 1206
1207 close(rtc_fd);
829309c7
FB		 1208}
1209
efe75411
TS		 1210static int dynticks_start_timer(struct qemu_alarm_timer *t)
1211{
1212 struct sigevent ev;
1213 timer_t host_timer;
1214 struct sigaction act;
1215
1216 sigfillset(&act.sa_mask);
1217 act.sa_flags = 0;
efe75411
TS		 1218 act.sa_handler = host_alarm_handler;
1219
1220 sigaction(SIGALRM, &act, NULL);
1221
9ed415b2
JCD		 1222 /*
1223 * Initialize ev struct to 0 to avoid valgrind complaining
1224 * about uninitialized data in timer_create call
1225 */
1226 memset(&ev, 0, sizeof(ev));
efe75411
TS		 1227 ev.sigev_value.sival_int = 0;
1228 ev.sigev_notify = SIGEV_SIGNAL;
1229 ev.sigev_signo = SIGALRM;
1230
1231 if (timer_create(CLOCK_REALTIME, &ev, &host_timer)) {
1232 perror("timer_create");
1233
1234 /* disable dynticks */
1235 fprintf(stderr, "Dynamic Ticks disabled\n");
1236
1237 return -1;
1238 }
1239
0399bfe0 1240 t->priv = (void *)(long)host_timer;
efe75411
TS		 1241
1242 return 0;
1243}
1244
1245static void dynticks_stop_timer(struct qemu_alarm_timer *t)
1246{
0399bfe0 1247 timer_t host_timer = (timer_t)(long)t->priv;
efe75411
TS		 1248
1249 timer_delete(host_timer);
1250}
1251
1252static void dynticks_rearm_timer(struct qemu_alarm_timer *t)
1253{
0399bfe0 1254 timer_t host_timer = (timer_t)(long)t->priv;
efe75411
TS		 1255 struct itimerspec timeout;
1256 int64_t nearest_delta_us = INT64_MAX;
1257 int64_t current_us;
1258
0fdddf80 1259 if (!active_timers[QEMU_CLOCK_REALTIME] &&
21d5d12b
JK		 1260 !active_timers[QEMU_CLOCK_VIRTUAL] &&
1261 !active_timers[QEMU_CLOCK_HOST])
d5d08334 1262 return;
efe75411 1263
2e70f6ef 1264 nearest_delta_us = qemu_next_deadline_dyntick();
efe75411
TS		 1265
1266 /* check whether a timer is already running */
1267 if (timer_gettime(host_timer, &timeout)) {
1268 perror("gettime");
1269 fprintf(stderr, "Internal timer error: aborting\n");
1270 exit(1);
1271 }
1272 current_us = timeout.it_value.tv_sec * 1000000 + timeout.it_value.tv_nsec/1000;
1273 if (current_us && current_us <= nearest_delta_us)
1274 return;
1275
1276 timeout.it_interval.tv_sec = 0;
1277 timeout.it_interval.tv_nsec = 0; /* 0 for one-shot timer */
1278 timeout.it_value.tv_sec = nearest_delta_us / 1000000;
1279 timeout.it_value.tv_nsec = (nearest_delta_us % 1000000) * 1000;
1280 if (timer_settime(host_timer, 0 /* RELATIVE */, &timeout, NULL)) {
1281 perror("settime");
1282 fprintf(stderr, "Internal timer error: aborting\n");
1283 exit(1);
1284 }
1285}
1286
70744b3a 1287#endif /* defined(__linux__) */
231c6586 1288
c8994013
TS		 1289static int unix_start_timer(struct qemu_alarm_timer *t)
1290{
1291 struct sigaction act;
1292 struct itimerval itv;
1293 int err;
1294
1295 /* timer signal */
1296 sigfillset(&act.sa_mask);
1297 act.sa_flags = 0;
c8994013
TS		 1298 act.sa_handler = host_alarm_handler;
1299
1300 sigaction(SIGALRM, &act, NULL);
1301
1302 itv.it_interval.tv_sec = 0;
1303 /* for i386 kernel 2.6 to get 1 ms */
1304 itv.it_interval.tv_usec = 999;
1305 itv.it_value.tv_sec = 0;
1306 itv.it_value.tv_usec = 10 * 1000;
1307
1308 err = setitimer(ITIMER_REAL, &itv, NULL);
1309 if (err)
1310 return -1;
1311
1312 return 0;
1313}
1314
1315static void unix_stop_timer(struct qemu_alarm_timer *t)
1316{
1317 struct itimerval itv;
1318
1319 memset(&itv, 0, sizeof(itv));
1320 setitimer(ITIMER_REAL, &itv, NULL);
1321}
1322
829309c7 1323#endif /* !defined(_WIN32) */
fd872598 1324
f49e58dc 1325
c8994013
TS		 1326#ifdef _WIN32
1327
1328static int win32_start_timer(struct qemu_alarm_timer *t)
1329{
1330 TIMECAPS tc;
1331 struct qemu_alarm_win32 *data = t->priv;
efe75411 1332 UINT flags;
c8994013 1333
c8994013
TS		 1334 memset(&tc, 0, sizeof(tc));
1335 timeGetDevCaps(&tc, sizeof(tc));
1336
1337 if (data->period < tc.wPeriodMin)
1338 data->period = tc.wPeriodMin;
1339
1340 timeBeginPeriod(data->period);
1341
efe75411
TS		 1342 flags = TIME_CALLBACK_FUNCTION;
1343 if (alarm_has_dynticks(t))
1344 flags |= TIME_ONESHOT;
1345 else
1346 flags |= TIME_PERIODIC;
1347
c8994013
TS		 1348 data->timerId = timeSetEvent(1, // interval (ms)
1349 data->period, // resolution
1350 host_alarm_handler, // function
1351 (DWORD)t, // parameter
efe75411 1352 flags);
c8994013
TS		 1353
1354 if (!data->timerId) {
20889d4e 1355 fprintf(stderr, "Failed to initialize win32 alarm timer: %ld\n",
705e83f6 1356 GetLastError());
c8994013 1357 timeEndPeriod(data->period);
c8994013
TS		 1358 return -1;
1359 }
1360
c8994013
TS		 1361 return 0;
1362}
1363
1364static void win32_stop_timer(struct qemu_alarm_timer *t)
1365{
1366 struct qemu_alarm_win32 *data = t->priv;
1367
1368 timeKillEvent(data->timerId);
1369 timeEndPeriod(data->period);
c8994013
TS		 1370}
1371
efe75411
TS		 1372static void win32_rearm_timer(struct qemu_alarm_timer *t)
1373{
1374 struct qemu_alarm_win32 *data = t->priv;
efe75411 1375
0fdddf80 1376 if (!active_timers[QEMU_CLOCK_REALTIME] &&
21d5d12b
JK		 1377 !active_timers[QEMU_CLOCK_VIRTUAL] &&
1378 !active_timers[QEMU_CLOCK_HOST])
d5d08334 1379 return;
efe75411 1380
efe75411
TS		 1381 timeKillEvent(data->timerId);
1382
1383 data->timerId = timeSetEvent(1,
1384 data->period,
1385 host_alarm_handler,
1386 (DWORD)t,
1387 TIME_ONESHOT | TIME_PERIODIC);
1388
1389 if (!data->timerId) {
20889d4e 1390 fprintf(stderr, "Failed to re-arm win32 alarm timer %ld\n",
705e83f6 1391 GetLastError());
efe75411
TS		 1392
1393 timeEndPeriod(data->period);
efe75411
TS		 1394 exit(1);
1395 }
1396}
1397
c8994013
TS		 1398#endif /* _WIN32 */
1399
7183b4b4 1400static int init_timer_alarm(void)
8a7ddc38 1401{
223f0d72 1402 struct qemu_alarm_timer *t = NULL;
c8994013 1403 int i, err = -1;
f49e58dc 1404
c8994013
TS		 1405 for (i = 0; alarm_timers[i].name; i++) {
1406 t = &alarm_timers[i];
1407
c8994013
TS		 1408 err = t->start(t);
1409 if (!err)
1410 break;
67b915a5 1411 }
fd872598 1412
c8994013 1413 if (err) {
7183b4b4
AL		 1414 err = -ENOENT;
1415 goto fail;
67b915a5 1416 }
c8994013
TS		 1417
1418 alarm_timer = t;
7183b4b4 1419
6abfbd79 1420 return 0;
7183b4b4
AL		 1421
1422fail:
7183b4b4 1423 return err;
8a7ddc38
FB		 1424}
1425
9596ebb7 1426static void quit_timers(void)
40c3bac3 1427{
c8994013
TS		 1428 alarm_timer->stop(alarm_timer);
1429 alarm_timer = NULL;
40c3bac3
FB		 1430}
1431
f6503059
AZ		 1432/***********************************************************/
1433/* host time/date access */
1434void qemu_get_timedate(struct tm *tm, int offset)
1435{
1436 time_t ti;
1437 struct tm *ret;
1438
1439 time(&ti);
1440 ti += offset;
1441 if (rtc_date_offset == -1) {
1442 if (rtc_utc)
1443 ret = gmtime(&ti);
1444 else
1445 ret = localtime(&ti);
1446 } else {
1447 ti -= rtc_date_offset;
1448 ret = gmtime(&ti);
1449 }
1450
1451 memcpy(tm, ret, sizeof(struct tm));
1452}
1453
1454int qemu_timedate_diff(struct tm *tm)
1455{
1456 time_t seconds;
1457
1458 if (rtc_date_offset == -1)
1459 if (rtc_utc)
1460 seconds = mktimegm(tm);
1461 else
1462 seconds = mktime(tm);
1463 else
1464 seconds = mktimegm(tm) + rtc_date_offset;
1465
1466 return seconds - time(NULL);
1467}
1468
1ed2fc1f
JK		 1469static void configure_rtc_date_offset(const char *startdate, int legacy)
1470{
1471 time_t rtc_start_date;
1472 struct tm tm;
1473
1474 if (!strcmp(startdate, "now") && legacy) {
1475 rtc_date_offset = -1;
1476 } else {
1477 if (sscanf(startdate, "%d-%d-%dT%d:%d:%d",
1478 &tm.tm_year,
1479 &tm.tm_mon,
1480 &tm.tm_mday,
1481 &tm.tm_hour,
1482 &tm.tm_min,
1483 &tm.tm_sec) == 6) {
1484 /* OK */
1485 } else if (sscanf(startdate, "%d-%d-%d",
1486 &tm.tm_year,
1487 &tm.tm_mon,
1488 &tm.tm_mday) == 3) {
1489 tm.tm_hour = 0;
1490 tm.tm_min = 0;
1491 tm.tm_sec = 0;
1492 } else {
1493 goto date_fail;
1494 }
1495 tm.tm_year -= 1900;
1496 tm.tm_mon--;
1497 rtc_start_date = mktimegm(&tm);
1498 if (rtc_start_date == -1) {
1499 date_fail:
1500 fprintf(stderr, "Invalid date format. Valid formats are:\n"
1501 "'2006-06-17T16:01:21' or '2006-06-17'\n");
1502 exit(1);
1503 }
1504 rtc_date_offset = time(NULL) - rtc_start_date;
1505 }
1506}
1507
1508static void configure_rtc(QemuOpts *opts)
1509{
1510 const char *value;
1511
1512 value = qemu_opt_get(opts, "base");
1513 if (value) {
1514 if (!strcmp(value, "utc")) {
1515 rtc_utc = 1;
1516 } else if (!strcmp(value, "localtime")) {
1517 rtc_utc = 0;
1518 } else {
1519 configure_rtc_date_offset(value, 0);
1520 }
1521 }
6875204c
JK		 1522 value = qemu_opt_get(opts, "clock");
1523 if (value) {
1524 if (!strcmp(value, "host")) {
1525 rtc_clock = host_clock;
1526 } else if (!strcmp(value, "vm")) {
1527 rtc_clock = vm_clock;
1528 } else {
1529 fprintf(stderr, "qemu: invalid option value '%s'\n", value);
1530 exit(1);
1531 }
1532 }
1ed2fc1f
JK		 1533#ifdef CONFIG_TARGET_I386
1534 value = qemu_opt_get(opts, "driftfix");
1535 if (value) {
1536 if (!strcmp(buf, "slew")) {
1537 rtc_td_hack = 1;
1538 } else if (!strcmp(buf, "none")) {
1539 rtc_td_hack = 0;
1540 } else {
1541 fprintf(stderr, "qemu: invalid option value '%s'\n", value);
1542 exit(1);
1543 }
1544 }
1545#endif
1546}
1547
fd1dff4b 1548#ifdef _WIN32
fd1dff4b
FB		 1549static void socket_cleanup(void)
1550{
1551 WSACleanup();
1552}
82c643ff 1553
fd1dff4b
FB		 1554static int socket_init(void)
1555{
1556 WSADATA Data;
1557 int ret, err;
1558
1559 ret = WSAStartup(MAKEWORD(2,2), &Data);
1560 if (ret != 0) {
1561 err = WSAGetLastError();
1562 fprintf(stderr, "WSAStartup: %d\n", err);
1563 return -1;
1564 }
1565 atexit(socket_cleanup);
1566 return 0;
1567}
64b7b733
AJ		 1568#endif
1569
1ae26a18
AZ		 1570/***********************************************************/
1571/* Bluetooth support */
1572static int nb_hcis;
1573static int cur_hci;
1574static struct HCIInfo *hci_table[MAX_NICS];
dc72ac14 1575
1ae26a18
AZ		 1576static struct bt_vlan_s {
1577 struct bt_scatternet_s net;
1578 int id;
1579 struct bt_vlan_s *next;
1580} *first_bt_vlan;
1581
1582/* find or alloc a new bluetooth "VLAN" */
674bb261 1583static struct bt_scatternet_s *qemu_find_bt_vlan(int id)
1ae26a18
AZ		 1584{
1585 struct bt_vlan_s **pvlan, *vlan;
1586 for (vlan = first_bt_vlan; vlan != NULL; vlan = vlan->next) {
1587 if (vlan->id == id)
1588 return &vlan->net;
1589 }
1590 vlan = qemu_mallocz(sizeof(struct bt_vlan_s));
1591 vlan->id = id;
1592 pvlan = &first_bt_vlan;
1593 while (*pvlan != NULL)
1594 pvlan = &(*pvlan)->next;
1595 *pvlan = vlan;
1596 return &vlan->net;
1597}
1598
1599static void null_hci_send(struct HCIInfo *hci, const uint8_t *data, int len)
1600{
1601}
1602
1603static int null_hci_addr_set(struct HCIInfo *hci, const uint8_t *bd_addr)
1604{
1605 return -ENOTSUP;
1606}
1607
1608static struct HCIInfo null_hci = {
1609 .cmd_send = null_hci_send,
1610 .sco_send = null_hci_send,
1611 .acl_send = null_hci_send,
1612 .bdaddr_set = null_hci_addr_set,
1613};
1614
1615struct HCIInfo *qemu_next_hci(void)
1616{
1617 if (cur_hci == nb_hcis)
1618 return &null_hci;
1619
1620 return hci_table[cur_hci++];
1621}
1622
dc72ac14
AZ		 1623static struct HCIInfo *hci_init(const char *str)
1624{
1625 char *endp;
1626 struct bt_scatternet_s *vlan = 0;
1627
1628 if (!strcmp(str, "null"))
1629 /* null */
1630 return &null_hci;
1631 else if (!strncmp(str, "host", 4) && (str[4] == '\0' || str[4] == ':'))
1632 /* host[:hciN] */
1633 return bt_host_hci(str[4] ? str + 5 : "hci0");
1634 else if (!strncmp(str, "hci", 3)) {
1635 /* hci[,vlan=n] */
1636 if (str[3]) {
1637 if (!strncmp(str + 3, ",vlan=", 6)) {
1638 vlan = qemu_find_bt_vlan(strtol(str + 9, &endp, 0));
1639 if (*endp)
1640 vlan = 0;
1641 }
1642 } else
1643 vlan = qemu_find_bt_vlan(0);
1644 if (vlan)
1645 return bt_new_hci(vlan);
1646 }
1647
1648 fprintf(stderr, "qemu: Unknown bluetooth HCI `%s'.\n", str);
1649
1650 return 0;
1651}
1652
1653static int bt_hci_parse(const char *str)
1654{
1655 struct HCIInfo *hci;
c227f099 1656 bdaddr_t bdaddr;
dc72ac14
AZ		 1657
1658 if (nb_hcis >= MAX_NICS) {
1659 fprintf(stderr, "qemu: Too many bluetooth HCIs (max %i).\n", MAX_NICS);
1660 return -1;
1661 }
1662
1663 hci = hci_init(str);
1664 if (!hci)
1665 return -1;
1666
1667 bdaddr.b[0] = 0x52;
1668 bdaddr.b[1] = 0x54;
1669 bdaddr.b[2] = 0x00;
1670 bdaddr.b[3] = 0x12;
1671 bdaddr.b[4] = 0x34;
1672 bdaddr.b[5] = 0x56 + nb_hcis;
1673 hci->bdaddr_set(hci, bdaddr.b);
1674
1675 hci_table[nb_hcis++] = hci;
1676
1677 return 0;
1678}
1679
1680static void bt_vhci_add(int vlan_id)
1681{
1682 struct bt_scatternet_s *vlan = qemu_find_bt_vlan(vlan_id);
1683
1684 if (!vlan->slave)
1685 fprintf(stderr, "qemu: warning: adding a VHCI to "
1686 "an empty scatternet %i\n", vlan_id);
1687
1688 bt_vhci_init(bt_new_hci(vlan));
1689}
1690
1691static struct bt_device_s *bt_device_add(const char *opt)
1692{
1693 struct bt_scatternet_s *vlan;
1694 int vlan_id = 0;
1695 char *endp = strstr(opt, ",vlan=");
1696 int len = (endp ? endp - opt : strlen(opt)) + 1;
1697 char devname[10];
1698
1699 pstrcpy(devname, MIN(sizeof(devname), len), opt);
1700
1701 if (endp) {
1702 vlan_id = strtol(endp + 6, &endp, 0);
1703 if (*endp) {
1704 fprintf(stderr, "qemu: unrecognised bluetooth vlan Id\n");
1705 return 0;
1706 }
1707 }
1708
1709 vlan = qemu_find_bt_vlan(vlan_id);
1710
1711 if (!vlan->slave)
1712 fprintf(stderr, "qemu: warning: adding a slave device to "
1713 "an empty scatternet %i\n", vlan_id);
1714
1715 if (!strcmp(devname, "keyboard"))
1716 return bt_keyboard_init(vlan);
1717
1718 fprintf(stderr, "qemu: unsupported bluetooth device `%s'\n", devname);
1719 return 0;
1720}
1721
1722static int bt_parse(const char *opt)
1723{
1724 const char *endp, *p;
1725 int vlan;
1726
1727 if (strstart(opt, "hci", &endp)) {
1728 if (!*endp || *endp == ',') {
1729 if (*endp)
1730 if (!strstart(endp, ",vlan=", 0))
1731 opt = endp + 1;
1732
1733 return bt_hci_parse(opt);
1734 }
1735 } else if (strstart(opt, "vhci", &endp)) {
1736 if (!*endp || *endp == ',') {
1737 if (*endp) {
1738 if (strstart(endp, ",vlan=", &p)) {
1739 vlan = strtol(p, (char **) &endp, 0);
1740 if (*endp) {
1741 fprintf(stderr, "qemu: bad scatternet '%s'\n", p);
1742 return 1;
1743 }
1744 } else {
1745 fprintf(stderr, "qemu: bad parameter '%s'\n", endp + 1);
1746 return 1;
1747 }
1748 } else
1749 vlan = 0;
1750
1751 bt_vhci_add(vlan);
1752 return 0;
1753 }
1754 } else if (strstart(opt, "device:", &endp))
1755 return !bt_device_add(endp);
1756
1757 fprintf(stderr, "qemu: bad bluetooth parameter '%s'\n", opt);
1758 return 1;
1759}
1760
1ae26a18
AZ		 1761/***********************************************************/
1762/* QEMU Block devices */
1763
609497ab 1764#define HD_ALIAS "index=%d,media=disk"
e4bcb14c 1765#define CDROM_ALIAS "index=2,media=cdrom"
e4bcb14c 1766#define FD_ALIAS "index=%d,if=floppy"
609497ab
AZ		 1767#define PFLASH_ALIAS "if=pflash"
1768#define MTD_ALIAS "if=mtd"
9d413d1d 1769#define SD_ALIAS "index=0,if=sd"
e4bcb14c 1770
9dfd7c7a 1771QemuOpts *drive_add(const char *file, const char *fmt, ...)
e4bcb14c
TS		 1772{
1773 va_list ap;
9dfd7c7a
GH		 1774 char optstr[1024];
1775 QemuOpts *opts;
e4bcb14c 1776
e4bcb14c 1777 va_start(ap, fmt);
9dfd7c7a 1778 vsnprintf(optstr, sizeof(optstr), fmt, ap);
e4bcb14c
TS		 1779 va_end(ap);
1780
7282a033 1781 opts = qemu_opts_parse(&qemu_drive_opts, optstr, NULL);
9dfd7c7a
GH		 1782 if (!opts) {
1783 fprintf(stderr, "%s: huh? duplicate? (%s)\n",
1784 __FUNCTION__, optstr);
1785 return NULL;
1786 }
1787 if (file)
1788 qemu_opt_set(opts, "file", file);
1789 return opts;
b01b1111
AL		 1790}
1791
751c6a17 1792DriveInfo *drive_get(BlockInterfaceType type, int bus, int unit)
e4bcb14c 1793{
751c6a17 1794 DriveInfo *dinfo;
e4bcb14c
TS		 1795
1796 /* seek interface, bus and unit */
1797
72cf2d4f 1798 QTAILQ_FOREACH(dinfo, &drives, next) {
751c6a17
GH		 1799 if (dinfo->type == type &&
1800 dinfo->bus == bus &&
1801 dinfo->unit == unit)
1802 return dinfo;
1803 }
e4bcb14c 1804
751c6a17 1805 return NULL;
e4bcb14c
TS		 1806}
1807
2e810b36 1808DriveInfo *drive_get_by_id(const char *id)
1dae12e6
GH		 1809{
1810 DriveInfo *dinfo;
1811
72cf2d4f 1812 QTAILQ_FOREACH(dinfo, &drives, next) {
1dae12e6
GH		 1813 if (strcmp(id, dinfo->id))
1814 continue;
1815 return dinfo;
1816 }
1817 return NULL;
1818}
1819
f60d39bc 1820int drive_get_max_bus(BlockInterfaceType type)
e4bcb14c
TS		 1821{
1822 int max_bus;
751c6a17 1823 DriveInfo *dinfo;
e4bcb14c
TS		 1824
1825 max_bus = -1;
72cf2d4f 1826 QTAILQ_FOREACH(dinfo, &drives, next) {
751c6a17
GH		 1827 if(dinfo->type == type &&
1828 dinfo->bus > max_bus)
1829 max_bus = dinfo->bus;
e4bcb14c
TS		 1830 }
1831 return max_bus;
1832}
1833
fa879c64
AL		 1834const char *drive_get_serial(BlockDriverState *bdrv)
1835{
751c6a17 1836 DriveInfo *dinfo;
fa879c64 1837
72cf2d4f 1838 QTAILQ_FOREACH(dinfo, &drives, next) {
751c6a17
GH		 1839 if (dinfo->bdrv == bdrv)
1840 return dinfo->serial;
1841 }
fa879c64
AL		 1842
1843 return "\0";
1844}
1845
f7850099
KW		 1846BlockInterfaceErrorAction drive_get_on_error(
1847 BlockDriverState *bdrv, int is_read)
428c5705 1848{
751c6a17 1849 DriveInfo *dinfo;
428c5705 1850
72cf2d4f 1851 QTAILQ_FOREACH(dinfo, &drives, next) {
751c6a17 1852 if (dinfo->bdrv == bdrv)
e9b2e818 1853 return is_read ? dinfo->on_read_error : dinfo->on_write_error;
751c6a17 1854 }
428c5705 1855
e9b2e818 1856 return is_read ? BLOCK_ERR_REPORT : BLOCK_ERR_STOP_ENOSPC;
428c5705
AL		 1857}
1858
a1620fac
AJ		 1859static void bdrv_format_print(void *opaque, const char *name)
1860{
1861 fprintf(stderr, " %s", name);
1862}
1863
56a14938 1864void drive_uninit(DriveInfo *dinfo)
b01b1111 1865{
56a14938
GH		 1866 qemu_opts_del(dinfo->opts);
1867 bdrv_delete(dinfo->bdrv);
1868 QTAILQ_REMOVE(&drives, dinfo, next);
1869 qemu_free(dinfo);
b01b1111
AL		 1870}
1871
e9b2e818
KW		 1872static int parse_block_error_action(const char *buf, int is_read)
1873{
1874 if (!strcmp(buf, "ignore")) {
1875 return BLOCK_ERR_IGNORE;
1876 } else if (!is_read && !strcmp(buf, "enospc")) {
1877 return BLOCK_ERR_STOP_ENOSPC;
1878 } else if (!strcmp(buf, "stop")) {
1879 return BLOCK_ERR_STOP_ANY;
1880 } else if (!strcmp(buf, "report")) {
1881 return BLOCK_ERR_REPORT;
1882 } else {
1883 fprintf(stderr, "qemu: '%s' invalid %s error action\n",
1884 buf, is_read ? "read" : "write");
1885 return -1;
1886 }
1887}
1888
9dfd7c7a 1889DriveInfo *drive_init(QemuOpts *opts, void *opaque,
751c6a17 1890 int *fatal_error)
e4bcb14c 1891{
9dfd7c7a
GH		 1892 const char *buf;
1893 const char *file = NULL;
c8522bdf 1894 char devname[128];
9dfd7c7a 1895 const char *serial;
c8522bdf 1896 const char *mediastr = "";
f60d39bc 1897 BlockInterfaceType type;
e4bcb14c
TS		 1898 enum { MEDIA_DISK, MEDIA_CDROM } media;
1899 int bus_id, unit_id;
1900 int cyls, heads, secs, translation;
1e72d3b7 1901 BlockDriver *drv = NULL;
4d73cd3b 1902 QEMUMachine *machine = opaque;
e4bcb14c
TS		 1903 int max_devs;
1904 int index;
33f00271 1905 int cache;
5c6c3a6c 1906 int aio = 0;
59f2689d 1907 int ro = 0;
e9b2e818
KW		 1908 int bdrv_flags;
1909 int on_read_error, on_write_error;
c2cc47a4 1910 const char *devaddr;
751c6a17 1911 DriveInfo *dinfo;
9dfd7c7a 1912 int snapshot = 0;
e4bcb14c 1913
9dfd7c7a 1914 *fatal_error = 1;
e4bcb14c 1915
e4bcb14c 1916 translation = BIOS_ATA_TRANSLATION_AUTO;
0aa217e4 1917 cache = 1;
e4bcb14c 1918
4d007814 1919 if (machine && machine->use_scsi) {
f60d39bc 1920 type = IF_SCSI;
e4bcb14c 1921 max_devs = MAX_SCSI_DEVS;
363a37d5 1922 pstrcpy(devname, sizeof(devname), "scsi");
e4bcb14c 1923 } else {
f60d39bc 1924 type = IF_IDE;
e4bcb14c 1925 max_devs = MAX_IDE_DEVS;
363a37d5 1926 pstrcpy(devname, sizeof(devname), "ide");
e4bcb14c
TS		 1927 }
1928 media = MEDIA_DISK;
1929
1930 /* extract parameters */
9dfd7c7a
GH		 1931 bus_id = qemu_opt_get_number(opts, "bus", 0);
1932 unit_id = qemu_opt_get_number(opts, "unit", -1);
1933 index = qemu_opt_get_number(opts, "index", -1);
e4bcb14c 1934
9dfd7c7a
GH		 1935 cyls = qemu_opt_get_number(opts, "cyls", 0);
1936 heads = qemu_opt_get_number(opts, "heads", 0);
1937 secs = qemu_opt_get_number(opts, "secs", 0);
e4bcb14c 1938
9dfd7c7a 1939 snapshot = qemu_opt_get_bool(opts, "snapshot", 0);
59f2689d 1940 ro = qemu_opt_get_bool(opts, "readonly", 0);
e4bcb14c 1941
9dfd7c7a
GH		 1942 file = qemu_opt_get(opts, "file");
1943 serial = qemu_opt_get(opts, "serial");
1944
1945 if ((buf = qemu_opt_get(opts, "if")) != NULL) {
ae45d369 1946 pstrcpy(devname, sizeof(devname), buf);
e4bcb14c 1947 if (!strcmp(buf, "ide")) {
f60d39bc 1948 type = IF_IDE;
e4bcb14c
TS		 1949 max_devs = MAX_IDE_DEVS;
1950 } else if (!strcmp(buf, "scsi")) {
f60d39bc 1951 type = IF_SCSI;
e4bcb14c
TS		 1952 max_devs = MAX_SCSI_DEVS;
1953 } else if (!strcmp(buf, "floppy")) {
f60d39bc 1954 type = IF_FLOPPY;
e4bcb14c
TS		 1955 max_devs = 0;
1956 } else if (!strcmp(buf, "pflash")) {
f60d39bc 1957 type = IF_PFLASH;
e4bcb14c
TS		 1958 max_devs = 0;
1959 } else if (!strcmp(buf, "mtd")) {
f60d39bc 1960 type = IF_MTD;
e4bcb14c
TS		 1961 max_devs = 0;
1962 } else if (!strcmp(buf, "sd")) {
f60d39bc 1963 type = IF_SD;
e4bcb14c 1964 max_devs = 0;
6e02c38d
AL		 1965 } else if (!strcmp(buf, "virtio")) {
1966 type = IF_VIRTIO;
1967 max_devs = 0;
62d23efa
AL		 1968 } else if (!strcmp(buf, "xen")) {
1969 type = IF_XEN;
1970 max_devs = 0;
a8659e90
GH		 1971 } else if (!strcmp(buf, "none")) {
1972 type = IF_NONE;
1973 max_devs = 0;
62d23efa 1974 } else {
9dfd7c7a 1975 fprintf(stderr, "qemu: unsupported bus type '%s'\n", buf);
751c6a17 1976 return NULL;
e4bcb14c
TS		 1977 }
1978 }
1979
e4bcb14c 1980 if (cyls || heads || secs) {
5afe3f04 1981 if (cyls < 1 || (type == IF_IDE && cyls > 16383)) {
9dfd7c7a 1982 fprintf(stderr, "qemu: '%s' invalid physical cyls number\n", buf);
751c6a17 1983 return NULL;
e4bcb14c 1984 }
5afe3f04 1985 if (heads < 1 || (type == IF_IDE && heads > 16)) {
9dfd7c7a 1986 fprintf(stderr, "qemu: '%s' invalid physical heads number\n", buf);
751c6a17 1987 return NULL;
e4bcb14c 1988 }
5afe3f04 1989 if (secs < 1 || (type == IF_IDE && secs > 63)) {
9dfd7c7a 1990 fprintf(stderr, "qemu: '%s' invalid physical secs number\n", buf);
751c6a17 1991 return NULL;
e4bcb14c
TS		 1992 }
1993 }
1994
9dfd7c7a 1995 if ((buf = qemu_opt_get(opts, "trans")) != NULL) {
e4bcb14c
TS		 1996 if (!cyls) {
1997 fprintf(stderr,
1998 "qemu: '%s' trans must be used with cyls,heads and secs\n",
9dfd7c7a 1999 buf);
751c6a17 2000 return NULL;
e4bcb14c
TS		 2001 }
2002 if (!strcmp(buf, "none"))
2003 translation = BIOS_ATA_TRANSLATION_NONE;
2004 else if (!strcmp(buf, "lba"))
2005 translation = BIOS_ATA_TRANSLATION_LBA;
2006 else if (!strcmp(buf, "auto"))
2007 translation = BIOS_ATA_TRANSLATION_AUTO;
2008 else {
9dfd7c7a 2009 fprintf(stderr, "qemu: '%s' invalid translation type\n", buf);
751c6a17 2010 return NULL;
e4bcb14c
TS		 2011 }
2012 }
2013
9dfd7c7a 2014 if ((buf = qemu_opt_get(opts, "media")) != NULL) {
e4bcb14c
TS		 2015 if (!strcmp(buf, "disk")) {
2016 media = MEDIA_DISK;
2017 } else if (!strcmp(buf, "cdrom")) {
2018 if (cyls || secs || heads) {
2019 fprintf(stderr,
9dfd7c7a 2020 "qemu: '%s' invalid physical CHS format\n", buf);
751c6a17 2021 return NULL;
e4bcb14c
TS		 2022 }
2023 media = MEDIA_CDROM;
2024 } else {
9dfd7c7a 2025 fprintf(stderr, "qemu: '%s' invalid media\n", buf);
751c6a17 2026 return NULL;
e4bcb14c
TS		 2027 }
2028 }
2029
9dfd7c7a 2030 if ((buf = qemu_opt_get(opts, "cache")) != NULL) {
9f7965c7 2031 if (!strcmp(buf, "off") || !strcmp(buf, "none"))
33f00271 2032 cache = 0;
9f7965c7 2033 else if (!strcmp(buf, "writethrough"))
33f00271 2034 cache = 1;
9f7965c7
AL		 2035 else if (!strcmp(buf, "writeback"))
2036 cache = 2;
33f00271
AZ		 2037 else {
2038 fprintf(stderr, "qemu: invalid cache option\n");
751c6a17 2039 return NULL;
33f00271
AZ		 2040 }
2041 }
2042
5c6c3a6c
CH		 2043#ifdef CONFIG_LINUX_AIO
2044 if ((buf = qemu_opt_get(opts, "aio")) != NULL) {
2045 if (!strcmp(buf, "threads"))
2046 aio = 0;
2047 else if (!strcmp(buf, "native"))
2048 aio = 1;
2049 else {
2050 fprintf(stderr, "qemu: invalid aio option\n");
2051 return NULL;
2052 }
2053 }
2054#endif
2055
9dfd7c7a 2056 if ((buf = qemu_opt_get(opts, "format")) != NULL) {
a1620fac
AJ		 2057 if (strcmp(buf, "?") == 0) {
2058 fprintf(stderr, "qemu: Supported formats:");
2059 bdrv_iterate_format(bdrv_format_print, NULL);
2060 fprintf(stderr, "\n");
751c6a17 2061 return NULL;
a1620fac 2062 }
eb852011 2063 drv = bdrv_find_whitelisted_format(buf);
1e72d3b7
AJ		 2064 if (!drv) {
2065 fprintf(stderr, "qemu: '%s' invalid format\n", buf);
751c6a17 2066 return NULL;
1e72d3b7
AJ		 2067 }
2068 }
2069
e9b2e818 2070 on_write_error = BLOCK_ERR_STOP_ENOSPC;
9dfd7c7a 2071 if ((buf = qemu_opt_get(opts, "werror")) != NULL) {
869a5c6d 2072 if (type != IF_IDE && type != IF_SCSI && type != IF_VIRTIO) {
ea8a5d7f 2073 fprintf(stderr, "werror is no supported by this format\n");
751c6a17 2074 return NULL;
428c5705 2075 }
e9b2e818
KW		 2076
2077 on_write_error = parse_block_error_action(buf, 0);
2078 if (on_write_error < 0) {
2079 return NULL;
2080 }
2081 }
2082
2083 on_read_error = BLOCK_ERR_REPORT;
2084 if ((buf = qemu_opt_get(opts, "rerror")) != NULL) {
f35d68f0 2085 if (type != IF_IDE && type != IF_VIRTIO) {
e9b2e818
KW		 2086 fprintf(stderr, "rerror is no supported by this format\n");
2087 return NULL;
2088 }
2089
2090 on_read_error = parse_block_error_action(buf, 1);
2091 if (on_read_error < 0) {
751c6a17 2092 return NULL;
428c5705
AL		 2093 }
2094 }
2095
9dfd7c7a 2096 if ((devaddr = qemu_opt_get(opts, "addr")) != NULL) {
c2cc47a4 2097 if (type != IF_VIRTIO) {
9dfd7c7a 2098 fprintf(stderr, "addr is not supported\n");
751c6a17 2099 return NULL;
c2cc47a4 2100 }
c2cc47a4
MA		 2101 }
2102
e4bcb14c
TS		 2103 /* compute bus and unit according index */
2104
2105 if (index != -1) {
2106 if (bus_id != 0 || unit_id != -1) {
2107 fprintf(stderr,
9dfd7c7a 2108 "qemu: index cannot be used with bus and unit\n");
751c6a17 2109 return NULL;
e4bcb14c
TS		 2110 }
2111 if (max_devs == 0)
2112 {
2113 unit_id = index;
2114 bus_id = 0;
2115 } else {
2116 unit_id = index % max_devs;
2117 bus_id = index / max_devs;
2118 }
2119 }
2120
2121 /* if user doesn't specify a unit_id,
2122 * try to find the first free
2123 */
2124
2125 if (unit_id == -1) {
2126 unit_id = 0;
751c6a17 2127 while (drive_get(type, bus_id, unit_id) != NULL) {
e4bcb14c
TS		 2128 unit_id++;
2129 if (max_devs && unit_id >= max_devs) {
2130 unit_id -= max_devs;
2131 bus_id++;
2132 }
2133 }
2134 }
2135
2136 /* check unit id */
2137
2138 if (max_devs && unit_id >= max_devs) {
9dfd7c7a
GH		 2139 fprintf(stderr, "qemu: unit %d too big (max is %d)\n",
2140 unit_id, max_devs - 1);
751c6a17 2141 return NULL;
e4bcb14c
TS		 2142 }
2143
2144 /*
2145 * ignore multiple definitions
2146 */
2147
751c6a17
GH		 2148 if (drive_get(type, bus_id, unit_id) != NULL) {
2149 *fatal_error = 0;
2150 return NULL;
2151 }
e4bcb14c
TS		 2152
2153 /* init */
2154
751c6a17 2155 dinfo = qemu_mallocz(sizeof(*dinfo));
e23d9c4d 2156 if ((buf = qemu_opts_id(opts)) != NULL) {
9dfd7c7a
GH		 2157 dinfo->id = qemu_strdup(buf);
2158 } else {
1dae12e6 2159 /* no id supplied -> create one */
9dfd7c7a 2160 dinfo->id = qemu_mallocz(32);
1dae12e6
GH		 2161 if (type == IF_IDE || type == IF_SCSI)
2162 mediastr = (media == MEDIA_CDROM) ? "-cd" : "-hd";
2163 if (max_devs)
9dfd7c7a 2164 snprintf(dinfo->id, 32, "%s%i%s%i",
1dae12e6
GH		 2165 devname, bus_id, mediastr, unit_id);
2166 else
9dfd7c7a 2167 snprintf(dinfo->id, 32, "%s%s%i",
1dae12e6
GH		 2168 devname, mediastr, unit_id);
2169 }
1dae12e6 2170 dinfo->bdrv = bdrv_new(dinfo->id);
751c6a17
GH		 2171 dinfo->devaddr = devaddr;
2172 dinfo->type = type;
2173 dinfo->bus = bus_id;
2174 dinfo->unit = unit_id;
e9b2e818
KW		 2175 dinfo->on_read_error = on_read_error;
2176 dinfo->on_write_error = on_write_error;
9dfd7c7a
GH		 2177 dinfo->opts = opts;
2178 if (serial)
2179 strncpy(dinfo->serial, serial, sizeof(serial));
72cf2d4f 2180 QTAILQ_INSERT_TAIL(&drives, dinfo, next);
e4bcb14c 2181
f60d39bc 2182 switch(type) {
e4bcb14c
TS		 2183 case IF_IDE:
2184 case IF_SCSI:
62d23efa 2185 case IF_XEN:
c219331e 2186 case IF_NONE:
e4bcb14c
TS		 2187 switch(media) {
2188 case MEDIA_DISK:
2189 if (cyls != 0) {
1dae12e6
GH		 2190 bdrv_set_geometry_hint(dinfo->bdrv, cyls, heads, secs);
2191 bdrv_set_translation_hint(dinfo->bdrv, translation);
e4bcb14c
TS		 2192 }
2193 break;
2194 case MEDIA_CDROM:
1dae12e6 2195 bdrv_set_type_hint(dinfo->bdrv, BDRV_TYPE_CDROM);
e4bcb14c
TS		 2196 break;
2197 }
2198 break;
2199 case IF_SD:
2200 /* FIXME: This isn't really a floppy, but it's a reasonable
2201 approximation. */
2202 case IF_FLOPPY:
1dae12e6 2203 bdrv_set_type_hint(dinfo->bdrv, BDRV_TYPE_FLOPPY);
e4bcb14c
TS		 2204 break;
2205 case IF_PFLASH:
2206 case IF_MTD:
2207 break;
d176c495
GH		 2208 case IF_VIRTIO:
2209 /* add virtio block device */
2210 opts = qemu_opts_create(&qemu_device_opts, NULL, 0);
2211 qemu_opt_set(opts, "driver", "virtio-blk-pci");
2212 qemu_opt_set(opts, "drive", dinfo->id);
2213 if (devaddr)
2214 qemu_opt_set(opts, "addr", devaddr);
2215 break;
aae9460e
PB		 2216 case IF_COUNT:
2217 abort();
e4bcb14c 2218 }
9dfd7c7a 2219 if (!file) {
751c6a17
GH		 2220 *fatal_error = 0;
2221 return NULL;
2222 }
33f00271 2223 bdrv_flags = 0;
9f7965c7 2224 if (snapshot) {
33f00271 2225 bdrv_flags |= BDRV_O_SNAPSHOT;
9f7965c7
AL		 2226 cache = 2; /* always use write-back with snapshot */
2227 }
2228 if (cache == 0) /* no caching */
2229 bdrv_flags |= BDRV_O_NOCACHE;
2230 else if (cache == 2) /* write-back */
2231 bdrv_flags |= BDRV_O_CACHE_WB;
5c6c3a6c
CH		 2232
2233 if (aio == 1) {
2234 bdrv_flags |= BDRV_O_NATIVE_AIO;
2235 } else {
2236 bdrv_flags &= ~BDRV_O_NATIVE_AIO;
2237 }
2238
59f2689d 2239 if (ro == 1) {
f5edb014
NS		 2240 if (type != IF_SCSI && type != IF_VIRTIO && type != IF_FLOPPY) {
2241 fprintf(stderr, "qemu: readonly flag not supported for drive with this interface\n");
59f2689d
NS		 2242 return NULL;
2243 }
b196b153
NS		 2244 }
2245 /*
2246 * cdrom is read-only. Set it now, after above interface checking
2247 * since readonly attribute not explicitly required, so no error.
2248 */
2249 if (media == MEDIA_CDROM) {
f5edb014 2250 ro = 1;
59f2689d 2251 }
f5edb014 2252 bdrv_flags |= ro ? 0 : BDRV_O_RDWR;
59f2689d 2253
1dae12e6 2254 if (bdrv_open2(dinfo->bdrv, file, bdrv_flags, drv) < 0) {
850810d0
JF		 2255 fprintf(stderr, "qemu: could not open disk image %s: %s\n",
2256 file, strerror(errno));
751c6a17 2257 return NULL;
e4bcb14c 2258 }
5c6c3a6c 2259
1dae12e6 2260 if (bdrv_key_required(dinfo->bdrv))
c0f4ce77 2261 autostart = 0;
751c6a17
GH		 2262 *fatal_error = 0;
2263 return dinfo;
e4bcb14c
TS		 2264}
2265
9dfd7c7a
GH		 2266static int drive_init_func(QemuOpts *opts, void *opaque)
2267{
2268 QEMUMachine *machine = opaque;
2269 int fatal_error = 0;
2270
2271 if (drive_init(opts, machine, &fatal_error) == NULL) {
2272 if (fatal_error)
2273 return 1;
2274 }
2275 return 0;
2276}
2277
2278static int drive_enable_snapshot(QemuOpts *opts, void *opaque)
2279{
2280 if (NULL == qemu_opt_get(opts, "snapshot")) {
2281 qemu_opt_set(opts, "snapshot", "on");
2282 }
2283 return 0;
2284}
2285
76e30d0f
JK		 2286void qemu_register_boot_set(QEMUBootSetHandler *func, void *opaque)
2287{
2288 boot_set_handler = func;
2289 boot_set_opaque = opaque;
2290}
2291
2292int qemu_boot_set(const char *boot_devices)
2293{
2294 if (!boot_set_handler) {
2295 return -EINVAL;
2296 }
2297 return boot_set_handler(boot_set_opaque, boot_devices);
2298}
2299
ef3adf68
JK		 2300static int parse_bootdevices(char *devices)
2301{
2302 /* We just do some generic consistency checks */
2303 const char *p;
2304 int bitmap = 0;
2305
2306 for (p = devices; *p != '\0'; p++) {
2307 /* Allowed boot devices are:
2308 * a-b: floppy disk drives
2309 * c-f: IDE disk drives
2310 * g-m: machine implementation dependant drives
2311 * n-p: network devices
2312 * It's up to each machine implementation to check if the given boot
2313 * devices match the actual hardware implementation and firmware
2314 * features.
2315 */
2316 if (*p < 'a' || *p > 'p') {
2317 fprintf(stderr, "Invalid boot device '%c'\n", *p);
2318 exit(1);
2319 }
2320 if (bitmap & (1 << (*p - 'a'))) {
2321 fprintf(stderr, "Boot device '%c' was given twice\n", *p);
2322 exit(1);
2323 }
2324 bitmap |= 1 << (*p - 'a');
2325 }
2326 return bitmap;
2327}
2328
e0f084bf
JK		 2329static void restore_boot_devices(void *opaque)
2330{
2331 char *standard_boot_devices = opaque;
2332
2333 qemu_boot_set(standard_boot_devices);
2334
2335 qemu_unregister_reset(restore_boot_devices, standard_boot_devices);
2336 qemu_free(standard_boot_devices);
2337}
2338
268a362c
AL		 2339static void numa_add(const char *optarg)
2340{
2341 char option[128];
2342 char *endptr;
2343 unsigned long long value, endvalue;
2344 int nodenr;
2345
2346 optarg = get_opt_name(option, 128, optarg, ',') + 1;
2347 if (!strcmp(option, "node")) {
2348 if (get_param_value(option, 128, "nodeid", optarg) == 0) {
2349 nodenr = nb_numa_nodes;
2350 } else {
2351 nodenr = strtoull(option, NULL, 10);
2352 }
2353
2354 if (get_param_value(option, 128, "mem", optarg) == 0) {
2355 node_mem[nodenr] = 0;
2356 } else {
2357 value = strtoull(option, &endptr, 0);
2358 switch (*endptr) {
2359 case 0: case 'M': case 'm':
2360 value <<= 20;
2361 break;
2362 case 'G': case 'g':
2363 value <<= 30;
2364 break;
2365 }
2366 node_mem[nodenr] = value;
2367 }
2368 if (get_param_value(option, 128, "cpus", optarg) == 0) {
2369 node_cpumask[nodenr] = 0;
2370 } else {
2371 value = strtoull(option, &endptr, 10);
2372 if (value >= 64) {
2373 value = 63;
2374 fprintf(stderr, "only 64 CPUs in NUMA mode supported.\n");
2375 } else {
2376 if (*endptr == '-') {
2377 endvalue = strtoull(endptr+1, &endptr, 10);
2378 if (endvalue >= 63) {
2379 endvalue = 62;
2380 fprintf(stderr,
2381 "only 63 CPUs in NUMA mode supported.\n");
2382 }
2383 value = (1 << (endvalue + 1)) - (1 << value);
2384 } else {
2385 value = 1 << value;
2386 }
2387 }
2388 node_cpumask[nodenr] = value;
2389 }
2390 nb_numa_nodes++;
2391 }
2392 return;
2393}
2394
dc6b1c09
AP		 2395static void smp_parse(const char *optarg)
2396{
2397 int smp, sockets = 0, threads = 0, cores = 0;
2398 char *endptr;
2399 char option[128];
2400
2401 smp = strtoul(optarg, &endptr, 10);
2402 if (endptr != optarg) {
2403 if (*endptr == ',') {
2404 endptr++;
2405 }
2406 }
2407 if (get_param_value(option, 128, "sockets", endptr) != 0)
2408 sockets = strtoull(option, NULL, 10);
2409 if (get_param_value(option, 128, "cores", endptr) != 0)
2410 cores = strtoull(option, NULL, 10);
2411 if (get_param_value(option, 128, "threads", endptr) != 0)
2412 threads = strtoull(option, NULL, 10);
2413 if (get_param_value(option, 128, "maxcpus", endptr) != 0)
2414 max_cpus = strtoull(option, NULL, 10);
2415
2416 /* compute missing values, prefer sockets over cores over threads */
2417 if (smp == 0 || sockets == 0) {
2418 sockets = sockets > 0 ? sockets : 1;
2419 cores = cores > 0 ? cores : 1;
2420 threads = threads > 0 ? threads : 1;
2421 if (smp == 0) {
2422 smp = cores * threads * sockets;
dc6b1c09
AP		 2423 }
2424 } else {
2425 if (cores == 0) {
2426 threads = threads > 0 ? threads : 1;
2427 cores = smp / (sockets * threads);
2428 } else {
5cdc9b76 2429 if (sockets) {
dc6b1c09
AP		 2430 threads = smp / (cores * sockets);
2431 }
2432 }
2433 }
2434 smp_cpus = smp;
2435 smp_cores = cores > 0 ? cores : 1;
2436 smp_threads = threads > 0 ? threads : 1;
2437 if (max_cpus == 0)
2438 max_cpus = smp_cpus;
2439}
2440
a594cfbf
FB		 2441/***********************************************************/
2442/* USB devices */
2443
c0f4ce77 2444static int usb_device_add(const char *devname, int is_hotplug)
a594cfbf
FB		 2445{
2446 const char *p;
a5d2f727 2447 USBDevice *dev = NULL;
a594cfbf 2448
a5d2f727 2449 if (!usb_enabled)
a594cfbf
FB		 2450 return -1;
2451
0958b4cc
GH		 2452 /* drivers with .usbdevice_name entry in USBDeviceInfo */
2453 dev = usbdevice_create(devname);
2454 if (dev)
2455 goto done;
2456
a5d2f727 2457 /* the other ones */
a594cfbf
FB		 2458 if (strstart(devname, "host:", &p)) {
2459 dev = usb_host_device_open(p);
dc72ac14
AZ		 2460 } else if (!strcmp(devname, "bt") || strstart(devname, "bt:", &p)) {
2461 dev = usb_bt_init(devname[2] ? hci_init(p) :
2462 bt_new_hci(qemu_find_bt_vlan(0)));
a594cfbf
FB		 2463 } else {
2464 return -1;
2465 }
0d92ed30
PB		 2466 if (!dev)
2467 return -1;
2468
a5d2f727 2469done:
a594cfbf
FB		 2470 return 0;
2471}
2472
1f3870ab
AL		 2473static int usb_device_del(const char *devname)
2474{
2475 int bus_num, addr;
2476 const char *p;
2477
5d0c5750
AL		 2478 if (strstart(devname, "host:", &p))
2479 return usb_host_device_close(p);
2480
a5d2f727 2481 if (!usb_enabled)
1f3870ab
AL		 2482 return -1;
2483
2484 p = strchr(devname, '.');
2485 if (!p)
2486 return -1;
2487 bus_num = strtoul(devname, NULL, 0);
2488 addr = strtoul(p + 1, NULL, 0);
2489
a5d2f727 2490 return usb_device_delete_addr(bus_num, addr);
1f3870ab
AL		 2491}
2492
bd3c948d
GH		 2493static int usb_parse(const char *cmdline)
2494{
59d1c1c2
ST		 2495 int r;
2496 r = usb_device_add(cmdline, 0);
2497 if (r < 0) {
2498 fprintf(stderr, "qemu: could not add USB device '%s'\n", cmdline);
2499 }
2500 return r;
bd3c948d
GH		 2501}
2502
d54908a5 2503void do_usb_add(Monitor *mon, const QDict *qdict)
a594cfbf 2504{
59d1c1c2
ST		 2505 const char *devname = qdict_get_str(qdict, "devname");
2506 if (usb_device_add(devname, 1) < 0) {
2507 qemu_error("could not add USB device '%s'\n", devname);
2508 }
a594cfbf
FB		 2509}
2510
d54908a5 2511void do_usb_del(Monitor *mon, const QDict *qdict)
a594cfbf 2512{
59d1c1c2
ST		 2513 const char *devname = qdict_get_str(qdict, "devname");
2514 if (usb_device_del(devname) < 0) {
2515 qemu_error("could not delete USB device '%s'\n", devname);
2516 }
a594cfbf
FB		 2517}
2518
201a51fc
AZ		 2519/***********************************************************/
2520/* PCMCIA/Cardbus */
2521
2522static struct pcmcia_socket_entry_s {
bc24a225 2523 PCMCIASocket *socket;
201a51fc
AZ		 2524 struct pcmcia_socket_entry_s *next;
2525} *pcmcia_sockets = 0;
2526
bc24a225 2527void pcmcia_socket_register(PCMCIASocket *socket)
201a51fc
AZ		 2528{
2529 struct pcmcia_socket_entry_s *entry;
2530
2531 entry = qemu_malloc(sizeof(struct pcmcia_socket_entry_s));
2532 entry->socket = socket;
2533 entry->next = pcmcia_sockets;
2534 pcmcia_sockets = entry;
2535}
2536
bc24a225 2537void pcmcia_socket_unregister(PCMCIASocket *socket)
201a51fc
AZ		 2538{
2539 struct pcmcia_socket_entry_s *entry, **ptr;
2540
2541 ptr = &pcmcia_sockets;
2542 for (entry = *ptr; entry; ptr = &entry->next, entry = *ptr)
2543 if (entry->socket == socket) {
2544 *ptr = entry->next;
2545 qemu_free(entry);
2546 }
2547}
2548
376253ec 2549void pcmcia_info(Monitor *mon)
201a51fc
AZ		 2550{
2551 struct pcmcia_socket_entry_s *iter;
376253ec 2552
201a51fc 2553 if (!pcmcia_sockets)
376253ec 2554 monitor_printf(mon, "No PCMCIA sockets\n");
201a51fc
AZ		 2555
2556 for (iter = pcmcia_sockets; iter; iter = iter->next)
376253ec
AL		 2557 monitor_printf(mon, "%s: %s\n", iter->socket->slot_string,
2558 iter->socket->attached ? iter->socket->card_string :
2559 "Empty");
201a51fc
AZ		 2560}
2561
2ff89790 2562/***********************************************************/
3023f332
AL		 2563/* register display */
2564
7b5d76da
AL		 2565struct DisplayAllocator default_allocator = {
2566 defaultallocator_create_displaysurface,
2567 defaultallocator_resize_displaysurface,
2568 defaultallocator_free_displaysurface
2569};
2570
3023f332
AL		 2571void register_displaystate(DisplayState *ds)
2572{
2573 DisplayState **s;
2574 s = &display_state;
2575 while (*s != NULL)
2576 s = &(*s)->next;
2577 ds->next = NULL;
2578 *s = ds;
2579}
2580
2581DisplayState *get_displaystate(void)
2582{
2583 return display_state;
2584}
2585
7b5d76da
AL		 2586DisplayAllocator *register_displayallocator(DisplayState *ds, DisplayAllocator *da)
2587{
2588 if(ds->allocator == &default_allocator) ds->allocator = da;
2589 return ds->allocator;
2590}
2591
2ff89790
TS		 2592/* dumb display */
2593
8f391ab4 2594static void dumb_display_init(void)
2ff89790 2595{
8f391ab4 2596 DisplayState *ds = qemu_mallocz(sizeof(DisplayState));
7b5d76da
AL		 2597 ds->allocator = &default_allocator;
2598 ds->surface = qemu_create_displaysurface(ds, 640, 480);
8f391ab4 2599 register_displaystate(ds);
2ff89790
TS		 2600}
2601
8a7ddc38
FB		 2602/***********************************************************/
2603/* I/O handling */
0824d6fc 2604
c4b1fcc0
FB		 2605typedef struct IOHandlerRecord {
2606 int fd;
7c9d8e07
FB		 2607 IOCanRWHandler *fd_read_poll;
2608 IOHandler *fd_read;
2609 IOHandler *fd_write;
cafffd40 2610 int deleted;
c4b1fcc0
FB		 2611 void *opaque;
2612 /* temporary data */
2613 struct pollfd *ufd;
8a7ddc38 2614 struct IOHandlerRecord *next;
c4b1fcc0
FB		 2615} IOHandlerRecord;
2616
8a7ddc38 2617static IOHandlerRecord *first_io_handler;
c4b1fcc0 2618
7c9d8e07
FB		 2619/* XXX: fd_read_poll should be suppressed, but an API change is
2620 necessary in the character devices to suppress fd_can_read(). */
5fafdf24
TS		 2621int qemu_set_fd_handler2(int fd,
2622 IOCanRWHandler *fd_read_poll,
2623 IOHandler *fd_read,
2624 IOHandler *fd_write,
7c9d8e07 2625 void *opaque)
c4b1fcc0 2626{
7c9d8e07 2627 IOHandlerRecord **pioh, *ioh;
c4b1fcc0 2628
7c9d8e07
FB		 2629 if (!fd_read && !fd_write) {
2630 pioh = &first_io_handler;
2631 for(;;) {
2632 ioh = *pioh;
2633 if (ioh == NULL)
2634 break;
2635 if (ioh->fd == fd) {
cafffd40 2636 ioh->deleted = 1;
7c9d8e07
FB		 2637 break;
2638 }
2639 pioh = &ioh->next;
2640 }
2641 } else {
2642 for(ioh = first_io_handler; ioh != NULL; ioh = ioh->next) {
2643 if (ioh->fd == fd)
2644 goto found;
2645 }
2646 ioh = qemu_mallocz(sizeof(IOHandlerRecord));
7c9d8e07
FB		 2647 ioh->next = first_io_handler;
2648 first_io_handler = ioh;
2649 found:
2650 ioh->fd = fd;
2651 ioh->fd_read_poll = fd_read_poll;
2652 ioh->fd_read = fd_read;
2653 ioh->fd_write = fd_write;
2654 ioh->opaque = opaque;
cafffd40 2655 ioh->deleted = 0;
7c9d8e07 2656 }
c4b1fcc0
FB		 2657 return 0;
2658}
2659
5fafdf24
TS		 2660int qemu_set_fd_handler(int fd,
2661 IOHandler *fd_read,
2662 IOHandler *fd_write,
7c9d8e07 2663 void *opaque)
8a7ddc38 2664{
7c9d8e07 2665 return qemu_set_fd_handler2(fd, NULL, fd_read, fd_write, opaque);
8a7ddc38
FB		 2666}
2667
56f3a5d0 2668#ifdef _WIN32
f331110f
FB		 2669/***********************************************************/
2670/* Polling handling */
2671
2672typedef struct PollingEntry {
2673 PollingFunc *func;
2674 void *opaque;
2675 struct PollingEntry *next;
2676} PollingEntry;
2677
2678static PollingEntry *first_polling_entry;
2679
2680int qemu_add_polling_cb(PollingFunc *func, void *opaque)
2681{
2682 PollingEntry **ppe, *pe;
2683 pe = qemu_mallocz(sizeof(PollingEntry));
f331110f
FB		 2684 pe->func = func;
2685 pe->opaque = opaque;
2686 for(ppe = &first_polling_entry; *ppe != NULL; ppe = &(*ppe)->next);
2687 *ppe = pe;
2688 return 0;
2689}
2690
2691void qemu_del_polling_cb(PollingFunc *func, void *opaque)
2692{
2693 PollingEntry **ppe, *pe;
2694 for(ppe = &first_polling_entry; *ppe != NULL; ppe = &(*ppe)->next) {
2695 pe = *ppe;
2696 if (pe->func == func && pe->opaque == opaque) {
2697 *ppe = pe->next;
2698 qemu_free(pe);
2699 break;
2700 }
2701 }
2702}
2703
a18e524a
FB		 2704/***********************************************************/
2705/* Wait objects support */
2706typedef struct WaitObjects {
2707 int num;
2708 HANDLE events[MAXIMUM_WAIT_OBJECTS + 1];
2709 WaitObjectFunc *func[MAXIMUM_WAIT_OBJECTS + 1];
2710 void *opaque[MAXIMUM_WAIT_OBJECTS + 1];
2711} WaitObjects;
2712
2713static WaitObjects wait_objects = {0};
3b46e624 2714
a18e524a
FB		 2715int qemu_add_wait_object(HANDLE handle, WaitObjectFunc *func, void *opaque)
2716{
2717 WaitObjects *w = &wait_objects;
2718
2719 if (w->num >= MAXIMUM_WAIT_OBJECTS)
2720 return -1;
2721 w->events[w->num] = handle;
2722 w->func[w->num] = func;
2723 w->opaque[w->num] = opaque;
2724 w->num++;
2725 return 0;
2726}
2727
2728void qemu_del_wait_object(HANDLE handle, WaitObjectFunc *func, void *opaque)
2729{
2730 int i, found;
2731 WaitObjects *w = &wait_objects;
2732
2733 found = 0;
2734 for (i = 0; i < w->num; i++) {
2735 if (w->events[i] == handle)
2736 found = 1;
2737 if (found) {
2738 w->events[i] = w->events[i + 1];
2739 w->func[i] = w->func[i + 1];
2740 w->opaque[i] = w->opaque[i + 1];
3b46e624 2741 }
a18e524a
FB		 2742 }
2743 if (found)
2744 w->num--;
2745}
2746#endif
2747
8a7ddc38
FB		 2748/***********************************************************/
2749/* ram save/restore */
2750
94fb0909 2751#define RAM_SAVE_FLAG_FULL 0x01 /* Obsolete, not used anymore */
475e4277
AL		 2752#define RAM_SAVE_FLAG_COMPRESS 0x02
2753#define RAM_SAVE_FLAG_MEM_SIZE 0x04
2754#define RAM_SAVE_FLAG_PAGE 0x08
2755#define RAM_SAVE_FLAG_EOS 0x10
2756
2757static int is_dup_page(uint8_t *page, uint8_t ch)
8a7ddc38 2758{
475e4277
AL		 2759 uint32_t val = ch << 24 | ch << 16 | ch << 8 | ch;
2760 uint32_t *array = (uint32_t *)page;
2761 int i;
3b46e624 2762
475e4277
AL		 2763 for (i = 0; i < (TARGET_PAGE_SIZE / 4); i++) {
2764 if (array[i] != val)
2765 return 0;
2766 }
2767
2768 return 1;
2769}
2770
2771static int ram_save_block(QEMUFile *f)
2772{
c227f099
AL		 2773 static ram_addr_t current_addr = 0;
2774 ram_addr_t saved_addr = current_addr;
2775 ram_addr_t addr = 0;
475e4277
AL		 2776 int found = 0;
2777
94a6b54f 2778 while (addr < last_ram_offset) {
475e4277 2779 if (cpu_physical_memory_get_dirty(current_addr, MIGRATION_DIRTY_FLAG)) {
5579c7f3 2780 uint8_t *p;
475e4277
AL		 2781
2782 cpu_physical_memory_reset_dirty(current_addr,
2783 current_addr + TARGET_PAGE_SIZE,
2784 MIGRATION_DIRTY_FLAG);
2785
5579c7f3 2786 p = qemu_get_ram_ptr(current_addr);
475e4277 2787
5579c7f3 2788 if (is_dup_page(p, *p)) {
475e4277 2789 qemu_put_be64(f, current_addr | RAM_SAVE_FLAG_COMPRESS);
5579c7f3 2790 qemu_put_byte(f, *p);
475e4277
AL		 2791 } else {
2792 qemu_put_be64(f, current_addr | RAM_SAVE_FLAG_PAGE);
5579c7f3 2793 qemu_put_buffer(f, p, TARGET_PAGE_SIZE);
c88676f8 2794 }
475e4277
AL		 2795
2796 found = 1;
2797 break;
c88676f8 2798 }
475e4277 2799 addr += TARGET_PAGE_SIZE;
94a6b54f 2800 current_addr = (saved_addr + addr) % last_ram_offset;
8a7ddc38 2801 }
475e4277
AL		 2802
2803 return found;
8a7ddc38
FB		 2804}
2805
84307938 2806static uint64_t bytes_transferred;
475e4277 2807
c227f099 2808static ram_addr_t ram_save_remaining(void)
475e4277 2809{
c227f099
AL		 2810 ram_addr_t addr;
2811 ram_addr_t count = 0;
475e4277 2812
94a6b54f 2813 for (addr = 0; addr < last_ram_offset; addr += TARGET_PAGE_SIZE) {
475e4277
AL		 2814 if (cpu_physical_memory_get_dirty(addr, MIGRATION_DIRTY_FLAG))
2815 count++;
2816 }
2817
2818 return count;
2819}
2820
9f9e28cd
GC		 2821uint64_t ram_bytes_remaining(void)
2822{
2823 return ram_save_remaining() * TARGET_PAGE_SIZE;
2824}
2825
2826uint64_t ram_bytes_transferred(void)
2827{
2828 return bytes_transferred;
2829}
2830
2831uint64_t ram_bytes_total(void)
2832{
2833 return last_ram_offset;
2834}
2835
f327aa0c 2836static int ram_save_live(Monitor *mon, QEMUFile *f, int stage, void *opaque)
475e4277 2837{
c227f099 2838 ram_addr_t addr;
a0a3fd60
GC		 2839 uint64_t bytes_transferred_last;
2840 double bwidth = 0;
2841 uint64_t expected_time = 0;
475e4277 2842
4ec7fcc7
JK		 2843 if (stage < 0) {
2844 cpu_physical_memory_set_dirty_tracking(0);
2845 return 0;
2846 }
2847
9fa06385 2848 if (cpu_physical_sync_dirty_bitmap(0, TARGET_PHYS_ADDR_MAX) != 0) {
b0a46a33
JK		 2849 qemu_file_set_error(f);
2850 return 0;
2851 }
2852
475e4277 2853 if (stage == 1) {
84307938
JK		 2854 bytes_transferred = 0;
2855
475e4277 2856 /* Make sure all dirty bits are set */
94a6b54f 2857 for (addr = 0; addr < last_ram_offset; addr += TARGET_PAGE_SIZE) {
475e4277
AL		 2858 if (!cpu_physical_memory_get_dirty(addr, MIGRATION_DIRTY_FLAG))
2859 cpu_physical_memory_set_dirty(addr);
2860 }
b0a46a33 2861
475e4277
AL		 2862 /* Enable dirty memory tracking */
2863 cpu_physical_memory_set_dirty_tracking(1);
2864
94a6b54f 2865 qemu_put_be64(f, last_ram_offset | RAM_SAVE_FLAG_MEM_SIZE);
475e4277
AL		 2866 }
2867
a0a3fd60
GC		 2868 bytes_transferred_last = bytes_transferred;
2869 bwidth = get_clock();
2870
475e4277
AL		 2871 while (!qemu_file_rate_limit(f)) {
2872 int ret;
2873
2874 ret = ram_save_block(f);
9f9e28cd 2875 bytes_transferred += ret * TARGET_PAGE_SIZE;
475e4277
AL		 2876 if (ret == 0) /* no more blocks */
2877 break;
2878 }
2879
a0a3fd60
GC		 2880 bwidth = get_clock() - bwidth;
2881 bwidth = (bytes_transferred - bytes_transferred_last) / bwidth;
2882
2883 /* if we haven't transferred anything this round, force expected_time to a
2884 * a very high value, but without crashing */
2885 if (bwidth == 0)
2886 bwidth = 0.000001;
2887
475e4277 2888 /* try transferring iterative blocks of memory */
475e4277 2889 if (stage == 3) {
475e4277 2890 /* flush all remaining blocks regardless of rate limiting */
9f9e28cd
GC		 2891 while (ram_save_block(f) != 0) {
2892 bytes_transferred += TARGET_PAGE_SIZE;
2893 }
8215e914 2894 cpu_physical_memory_set_dirty_tracking(0);
475e4277
AL		 2895 }
2896
2897 qemu_put_be64(f, RAM_SAVE_FLAG_EOS);
2898
a0a3fd60
GC		 2899 expected_time = ram_save_remaining() * TARGET_PAGE_SIZE / bwidth;
2900
2901 return (stage == 2) && (expected_time <= migrate_max_downtime());
475e4277
AL		 2902}
2903
475e4277
AL		 2904static int ram_load(QEMUFile *f, void *opaque, int version_id)
2905{
c227f099 2906 ram_addr_t addr;
475e4277
AL		 2907 int flags;
2908
475e4277
AL		 2909 if (version_id != 3)
2910 return -EINVAL;
2911
2912 do {
2913 addr = qemu_get_be64(f);
2914
2915 flags = addr & ~TARGET_PAGE_MASK;
2916 addr &= TARGET_PAGE_MASK;
2917
2918 if (flags & RAM_SAVE_FLAG_MEM_SIZE) {
94a6b54f 2919 if (addr != last_ram_offset)
475e4277
AL		 2920 return -EINVAL;
2921 }
2922
475e4277
AL		 2923 if (flags & RAM_SAVE_FLAG_COMPRESS) {
2924 uint8_t ch = qemu_get_byte(f);
779c6bef
AL		 2925 memset(qemu_get_ram_ptr(addr), ch, TARGET_PAGE_SIZE);
2926#ifndef _WIN32
30868442
AL		 2927 if (ch == 0 &&
2928 (!kvm_enabled() || kvm_has_sync_mmu())) {
2929 madvise(qemu_get_ram_ptr(addr), TARGET_PAGE_SIZE, MADV_DONTNEED);
779c6bef 2930 }
30868442 2931#endif
9a743e5b 2932 } else if (flags & RAM_SAVE_FLAG_PAGE) {
5579c7f3 2933 qemu_get_buffer(f, qemu_get_ram_ptr(addr), TARGET_PAGE_SIZE);
9a743e5b
JK		 2934 }
2935 if (qemu_file_has_error(f)) {
2936 return -EIO;
2937 }
475e4277
AL		 2938 } while (!(flags & RAM_SAVE_FLAG_EOS));
2939
8a7ddc38
FB		 2940 return 0;
2941}
2942
9e472e10
AL		 2943void qemu_service_io(void)
2944{
d9f75a4e 2945 qemu_notify_event();
9e472e10
AL		 2946}
2947
cc1daa40
FB		 2948/***********************************************************/
2949/* machine registration */
2950
bdaf78e0 2951static QEMUMachine *first_machine = NULL;
6f338c34 2952QEMUMachine *current_machine = NULL;
cc1daa40
FB		 2953
2954int qemu_register_machine(QEMUMachine *m)
2955{
2956 QEMUMachine **pm;
2957 pm = &first_machine;
2958 while (*pm != NULL)
2959 pm = &(*pm)->next;
2960 m->next = NULL;
2961 *pm = m;
2962 return 0;
2963}
2964
9596ebb7 2965static QEMUMachine *find_machine(const char *name)
cc1daa40
FB		 2966{
2967 QEMUMachine *m;
2968
2969 for(m = first_machine; m != NULL; m = m->next) {
2970 if (!strcmp(m->name, name))
2971 return m;
3f6599e6
MM		 2972 if (m->alias && !strcmp(m->alias, name))
2973 return m;
cc1daa40
FB		 2974 }
2975 return NULL;
2976}
2977
0c257437
AL		 2978static QEMUMachine *find_default_machine(void)
2979{
2980 QEMUMachine *m;
2981
2982 for(m = first_machine; m != NULL; m = m->next) {
2983 if (m->is_default) {
2984 return m;
2985 }
2986 }
2987 return NULL;
2988}
2989
8a7ddc38
FB		 2990/***********************************************************/
2991/* main execution loop */
2992
9596ebb7 2993static void gui_update(void *opaque)
8a7ddc38 2994{
7d957bd8 2995 uint64_t interval = GUI_REFRESH_INTERVAL;
740733bb 2996 DisplayState *ds = opaque;
7d957bd8
AL		 2997 DisplayChangeListener *dcl = ds->listeners;
2998
2999 dpy_refresh(ds);
3000
3001 while (dcl != NULL) {
3002 if (dcl->gui_timer_interval &&
3003 dcl->gui_timer_interval < interval)
3004 interval = dcl->gui_timer_interval;
3005 dcl = dcl->next;
3006 }
3007 qemu_mod_timer(ds->gui_timer, interval + qemu_get_clock(rt_clock));
8a7ddc38
FB		 3008}
3009
9043b62d
BS		 3010static void nographic_update(void *opaque)
3011{
3012 uint64_t interval = GUI_REFRESH_INTERVAL;
3013
3014 qemu_mod_timer(nographic_timer, interval + qemu_get_clock(rt_clock));
3015}
3016
0bd48850
FB		 3017struct vm_change_state_entry {
3018 VMChangeStateHandler *cb;
3019 void *opaque;
72cf2d4f 3020 QLIST_ENTRY (vm_change_state_entry) entries;
0bd48850
FB		 3021};
3022
72cf2d4f 3023static QLIST_HEAD(vm_change_state_head, vm_change_state_entry) vm_change_state_head;
0bd48850
FB		 3024
3025VMChangeStateEntry *qemu_add_vm_change_state_handler(VMChangeStateHandler *cb,
3026 void *opaque)
3027{
3028 VMChangeStateEntry *e;
3029
3030 e = qemu_mallocz(sizeof (*e));
0bd48850
FB		 3031
3032 e->cb = cb;
3033 e->opaque = opaque;
72cf2d4f 3034 QLIST_INSERT_HEAD(&vm_change_state_head, e, entries);
0bd48850
FB		 3035 return e;
3036}
3037
3038void qemu_del_vm_change_state_handler(VMChangeStateEntry *e)
3039{
72cf2d4f 3040 QLIST_REMOVE (e, entries);
0bd48850
FB		 3041 qemu_free (e);
3042}
3043
9781e040 3044static void vm_state_notify(int running, int reason)
0bd48850
FB		 3045{
3046 VMChangeStateEntry *e;
3047
3048 for (e = vm_change_state_head.lh_first; e; e = e->entries.le_next) {
9781e040 3049 e->cb(e->opaque, running, reason);
0bd48850
FB		 3050 }
3051}
3052
d6dc3d42
AL		 3053static void resume_all_vcpus(void);
3054static void pause_all_vcpus(void);
3055
8a7ddc38
FB		 3056void vm_start(void)
3057{
3058 if (!vm_running) {
3059 cpu_enable_ticks();
3060 vm_running = 1;
9781e040 3061 vm_state_notify(1, 0);
efe75411 3062 qemu_rearm_alarm_timer(alarm_timer);
d6dc3d42 3063 resume_all_vcpus();
8a7ddc38
FB		 3064 }
3065}
3066
bb0c6722
FB		 3067/* reset/shutdown handler */
3068
3069typedef struct QEMUResetEntry {
72cf2d4f 3070 QTAILQ_ENTRY(QEMUResetEntry) entry;
bb0c6722
FB		 3071 QEMUResetHandler *func;
3072 void *opaque;
bb0c6722
FB		 3073} QEMUResetEntry;
3074
72cf2d4f
BS		 3075static QTAILQ_HEAD(reset_handlers, QEMUResetEntry) reset_handlers =
3076 QTAILQ_HEAD_INITIALIZER(reset_handlers);
bb0c6722
FB		 3077static int reset_requested;
3078static int shutdown_requested;
3475187d 3079static int powerdown_requested;
e568902a 3080static int debug_requested;
6e29f5da 3081static int vmstop_requested;
bb0c6722 3082
cf7a2fe2
AJ		 3083int qemu_shutdown_requested(void)
3084{
3085 int r = shutdown_requested;
3086 shutdown_requested = 0;
3087 return r;
3088}
3089
3090int qemu_reset_requested(void)
3091{
3092 int r = reset_requested;
3093 reset_requested = 0;
3094 return r;
3095}
3096
3097int qemu_powerdown_requested(void)
3098{
3099 int r = powerdown_requested;
3100 powerdown_requested = 0;
3101 return r;
3102}
3103
e568902a
AL		 3104static int qemu_debug_requested(void)
3105{
3106 int r = debug_requested;
3107 debug_requested = 0;
3108 return r;
3109}
3110
6e29f5da
AL		 3111static int qemu_vmstop_requested(void)
3112{
3113 int r = vmstop_requested;
3114 vmstop_requested = 0;
3115 return r;
3116}
3117
3118static void do_vm_stop(int reason)
3119{
3120 if (vm_running) {
3121 cpu_disable_ticks();
3122 vm_running = 0;
d6dc3d42 3123 pause_all_vcpus();
6e29f5da
AL		 3124 vm_state_notify(0, reason);
3125 }
3126}
3127
a08d4367 3128void qemu_register_reset(QEMUResetHandler *func, void *opaque)
bb0c6722 3129{
55ddfe8e 3130 QEMUResetEntry *re = qemu_mallocz(sizeof(QEMUResetEntry));
bb0c6722 3131
bb0c6722
FB		 3132 re->func = func;
3133 re->opaque = opaque;
72cf2d4f 3134 QTAILQ_INSERT_TAIL(&reset_handlers, re, entry);
bb0c6722
FB		 3135}
3136
dda9b29f 3137void qemu_unregister_reset(QEMUResetHandler *func, void *opaque)
bb0c6722
FB		 3138{
3139 QEMUResetEntry *re;
3140
72cf2d4f 3141 QTAILQ_FOREACH(re, &reset_handlers, entry) {
dda9b29f 3142 if (re->func == func && re->opaque == opaque) {
72cf2d4f 3143 QTAILQ_REMOVE(&reset_handlers, re, entry);
dda9b29f
JK		 3144 qemu_free(re);
3145 return;
3146 }
3147 }
3148}
3149
3150void qemu_system_reset(void)
3151{
3152 QEMUResetEntry *re, *nre;
3153
3154 /* reset all devices */
72cf2d4f 3155 QTAILQ_FOREACH_SAFE(re, &reset_handlers, entry, nre) {
bb0c6722
FB		 3156 re->func(re->opaque);
3157 }
3158}
3159
3160void qemu_system_reset_request(void)
3161{
d1beab82
FB		 3162 if (no_reboot) {
3163 shutdown_requested = 1;
3164 } else {
3165 reset_requested = 1;
3166 }
d9f75a4e 3167 qemu_notify_event();
bb0c6722
FB		 3168}
3169
3170void qemu_system_shutdown_request(void)
3171{
3172 shutdown_requested = 1;
d9f75a4e 3173 qemu_notify_event();
bb0c6722
FB		 3174}
3175
3475187d
FB		 3176void qemu_system_powerdown_request(void)
3177{
3178 powerdown_requested = 1;
d9f75a4e
AL		 3179 qemu_notify_event();
3180}
3181
d6dc3d42
AL		 3182#ifdef CONFIG_IOTHREAD
3183static void qemu_system_vmstop_request(int reason)
d9f75a4e 3184{
d6dc3d42
AL		 3185 vmstop_requested = reason;
3186 qemu_notify_event();
bb0c6722 3187}
d6dc3d42 3188#endif
bb0c6722 3189
50317c7f
AL		 3190#ifndef _WIN32
3191static int io_thread_fd = -1;
3192
3193static void qemu_event_increment(void)
3fcf7b6b 3194{
50317c7f 3195 static const char byte = 0;
dc330e28 3196 ssize_t ret;
50317c7f
AL		 3197
3198 if (io_thread_fd == -1)
3199 return;
3200
dc330e28
KS		 3201 ret = write(io_thread_fd, &byte, sizeof(byte));
3202 if (ret < 0 && (errno != EINTR && errno != EAGAIN)) {
3203 fprintf(stderr, "qemu_event_increment: write() filed: %s\n",
3204 strerror(errno));
3205 exit (1);
3206 }
50317c7f
AL		 3207}
3208
3209static void qemu_event_read(void *opaque)
3210{
3211 int fd = (unsigned long)opaque;
3212 ssize_t len;
3213
3214 /* Drain the notify pipe */
3215 do {
3216 char buffer[512];
3217 len = read(fd, buffer, sizeof(buffer));
3218 } while ((len == -1 && errno == EINTR) || len > 0);
3219}
3220
3221static int qemu_event_init(void)
3222{
3223 int err;
3224 int fds[2];
3225
40ff6d7e 3226 err = qemu_pipe(fds);
50317c7f
AL		 3227 if (err == -1)
3228 return -errno;
3229
3230 err = fcntl_setfl(fds[0], O_NONBLOCK);
3231 if (err < 0)
3232 goto fail;
3233
3234 err = fcntl_setfl(fds[1], O_NONBLOCK);
3235 if (err < 0)
3236 goto fail;
3237
3238 qemu_set_fd_handler2(fds[0], NULL, qemu_event_read, NULL,
3239 (void *)(unsigned long)fds[0]);
3240
3241 io_thread_fd = fds[1];
a7e21219
JK		 3242 return 0;
3243
50317c7f
AL		 3244fail:
3245 close(fds[0]);
3246 close(fds[1]);
3247 return err;
3248}
3249#else
3250HANDLE qemu_event_handle;
3251
3252static void dummy_event_handler(void *opaque)
3253{
3254}
3255
3256static int qemu_event_init(void)
3257{
3258 qemu_event_handle = CreateEvent(NULL, FALSE, FALSE, NULL);
3259 if (!qemu_event_handle) {
20889d4e 3260 fprintf(stderr, "Failed CreateEvent: %ld\n", GetLastError());
50317c7f
AL		 3261 return -1;
3262 }
3263 qemu_add_wait_object(qemu_event_handle, dummy_event_handler, NULL);
3fcf7b6b
AL		 3264 return 0;
3265}
3266
50317c7f
AL		 3267static void qemu_event_increment(void)
3268{
de1c90cf 3269 if (!SetEvent(qemu_event_handle)) {
20889d4e 3270 fprintf(stderr, "qemu_event_increment: SetEvent failed: %ld\n",
de1c90cf 3271 GetLastError());
3272 exit (1);
3273 }
50317c7f
AL		 3274}
3275#endif
3276
d6dc3d42
AL		 3277static int cpu_can_run(CPUState *env)
3278{
3279 if (env->stop)
3280 return 0;
3281 if (env->stopped)
3282 return 0;
3283 return 1;
3284}
3285
3286#ifndef CONFIG_IOTHREAD
50317c7f
AL		 3287static int qemu_init_main_loop(void)
3288{
3289 return qemu_event_init();
3290}
3291
0bf46a40
AL		 3292void qemu_init_vcpu(void *_env)
3293{
3294 CPUState *env = _env;
3295
dc6b1c09
AP		 3296 env->nr_cores = smp_cores;
3297 env->nr_threads = smp_threads;
3f7638ec
JD		 3298 if (kvm_enabled())
3299 kvm_init_vcpu(env);
0bf46a40
AL		 3300 return;
3301}
3302
8edac960
AL		 3303int qemu_cpu_self(void *env)
3304{
3305 return 1;
3306}
3307
d6dc3d42
AL		 3308static void resume_all_vcpus(void)
3309{
3310}
3311
3312static void pause_all_vcpus(void)
3313{
3314}
3315
8edac960
AL		 3316void qemu_cpu_kick(void *env)
3317{
3318 return;
3319}
3320
d6dc3d42
AL		 3321void qemu_notify_event(void)
3322{
3323 CPUState *env = cpu_single_env;
3324
3325 if (env) {
3326 cpu_exit(env);
4a1418e0 3327 }
d6dc3d42
AL		 3328}
3329
d549db5a
GC		 3330void qemu_mutex_lock_iothread(void) {}
3331void qemu_mutex_unlock_iothread(void) {}
4870852c 3332
6e29f5da
AL		 3333void vm_stop(int reason)
3334{
3335 do_vm_stop(reason);
3336}
3337
d6dc3d42
AL		 3338#else /* CONFIG_IOTHREAD */
3339
3340#include "qemu-thread.h"
3341
3342QemuMutex qemu_global_mutex;
3343static QemuMutex qemu_fair_mutex;
3344
3345static QemuThread io_thread;
3346
3347static QemuThread *tcg_cpu_thread;
3348static QemuCond *tcg_halt_cond;
3349
3350static int qemu_system_ready;
3351/* cpu creation */
3352static QemuCond qemu_cpu_cond;
3353/* system init */
3354static QemuCond qemu_system_cond;
3355static QemuCond qemu_pause_cond;
3356
3357static void block_io_signals(void);
3358static void unblock_io_signals(void);
3359static int tcg_has_work(void);
3360
3361static int qemu_init_main_loop(void)
3362{
3363 int ret;
3364
3365 ret = qemu_event_init();
3366 if (ret)
3367 return ret;
3368
3369 qemu_cond_init(&qemu_pause_cond);
3370 qemu_mutex_init(&qemu_fair_mutex);
3371 qemu_mutex_init(&qemu_global_mutex);
3372 qemu_mutex_lock(&qemu_global_mutex);
3373
3374 unblock_io_signals();
3375 qemu_thread_self(&io_thread);
3376
3377 return 0;
3378}
3379
3380static void qemu_wait_io_event(CPUState *env)
3381{
3382 while (!tcg_has_work())
3383 qemu_cond_timedwait(env->halt_cond, &qemu_global_mutex, 1000);
3384
3385 qemu_mutex_unlock(&qemu_global_mutex);
3386
3387 /*
3388 * Users of qemu_global_mutex can be starved, having no chance
3389 * to acquire it since this path will get to it first.
3390 * So use another lock to provide fairness.
3391 */
3392 qemu_mutex_lock(&qemu_fair_mutex);
3393 qemu_mutex_unlock(&qemu_fair_mutex);
3394
3395 qemu_mutex_lock(&qemu_global_mutex);
3396 if (env->stop) {
3397 env->stop = 0;
3398 env->stopped = 1;
3399 qemu_cond_signal(&qemu_pause_cond);
3400 }
3401}
3402
3403static int qemu_cpu_exec(CPUState *env);
3404
3405static void *kvm_cpu_thread_fn(void *arg)
3406{
3407 CPUState *env = arg;
3408
3409 block_io_signals();
3410 qemu_thread_self(env->thread);
321c1cb1
JCD		 3411 if (kvm_enabled())
3412 kvm_init_vcpu(env);
d6dc3d42
AL		 3413
3414 /* signal CPU creation */
3415 qemu_mutex_lock(&qemu_global_mutex);
3416 env->created = 1;
3417 qemu_cond_signal(&qemu_cpu_cond);
3418
3419 /* and wait for machine initialization */
3420 while (!qemu_system_ready)
3421 qemu_cond_timedwait(&qemu_system_cond, &qemu_global_mutex, 100);
3422
3423 while (1) {
3424 if (cpu_can_run(env))
3425 qemu_cpu_exec(env);
1c3173b9 3426 qemu_wait_io_event(env);
d6dc3d42
AL		 3427 }
3428
3429 return NULL;
3430}
3431
3432static void tcg_cpu_exec(void);
3433
3434static void *tcg_cpu_thread_fn(void *arg)
3435{
3436 CPUState *env = arg;
3437
3438 block_io_signals();
3439 qemu_thread_self(env->thread);
3440
3441 /* signal CPU creation */
3442 qemu_mutex_lock(&qemu_global_mutex);
3443 for (env = first_cpu; env != NULL; env = env->next_cpu)
3444 env->created = 1;
3445 qemu_cond_signal(&qemu_cpu_cond);
3446
3447 /* and wait for machine initialization */
3448 while (!qemu_system_ready)
3449 qemu_cond_timedwait(&qemu_system_cond, &qemu_global_mutex, 100);
3450
3451 while (1) {
3452 tcg_cpu_exec();
3453 qemu_wait_io_event(cur_cpu);
3454 }
3455
3456 return NULL;
3457}
3458
3459void qemu_cpu_kick(void *_env)
3460{
3461 CPUState *env = _env;
3462 qemu_cond_broadcast(env->halt_cond);
3463 if (kvm_enabled())
3464 qemu_thread_signal(env->thread, SIGUSR1);
3465}
3466
e5bc201d 3467int qemu_cpu_self(void *_env)
d6dc3d42 3468{
e5bc201d
GC		 3469 CPUState *env = _env;
3470 QemuThread this;
3471
3472 qemu_thread_self(&this);
3473
3474 return qemu_thread_equal(&this, env->thread);
d6dc3d42
AL		 3475}
3476
3477static void cpu_signal(int sig)
3478{
3479 if (cpu_single_env)
3480 cpu_exit(cpu_single_env);
3481}
3482
3483static void block_io_signals(void)
3484{
3485 sigset_t set;
3486 struct sigaction sigact;
3487
3488 sigemptyset(&set);
3489 sigaddset(&set, SIGUSR2);
3490 sigaddset(&set, SIGIO);
3491 sigaddset(&set, SIGALRM);
3492 pthread_sigmask(SIG_BLOCK, &set, NULL);
3493
3494 sigemptyset(&set);
3495 sigaddset(&set, SIGUSR1);
3496 pthread_sigmask(SIG_UNBLOCK, &set, NULL);
3497
3498 memset(&sigact, 0, sizeof(sigact));
3499 sigact.sa_handler = cpu_signal;
3500 sigaction(SIGUSR1, &sigact, NULL);
3501}
3502
3503static void unblock_io_signals(void)
3504{
3505 sigset_t set;
3506
3507 sigemptyset(&set);
3508 sigaddset(&set, SIGUSR2);
3509 sigaddset(&set, SIGIO);
3510 sigaddset(&set, SIGALRM);
3511 pthread_sigmask(SIG_UNBLOCK, &set, NULL);
3512
3513 sigemptyset(&set);
3514 sigaddset(&set, SIGUSR1);
3515 pthread_sigmask(SIG_BLOCK, &set, NULL);
3516}
3517
3518static void qemu_signal_lock(unsigned int msecs)
3519{
3520 qemu_mutex_lock(&qemu_fair_mutex);
3521
3522 while (qemu_mutex_trylock(&qemu_global_mutex)) {
3523 qemu_thread_signal(tcg_cpu_thread, SIGUSR1);
3524 if (!qemu_mutex_timedlock(&qemu_global_mutex, msecs))
3525 break;
3526 }
3527 qemu_mutex_unlock(&qemu_fair_mutex);
3528}
3529
d549db5a 3530void qemu_mutex_lock_iothread(void)
d6dc3d42
AL		 3531{
3532 if (kvm_enabled()) {
3533 qemu_mutex_lock(&qemu_fair_mutex);
3534 qemu_mutex_lock(&qemu_global_mutex);
3535 qemu_mutex_unlock(&qemu_fair_mutex);
3536 } else
3537 qemu_signal_lock(100);
3538}
3539
d549db5a 3540void qemu_mutex_unlock_iothread(void)
d6dc3d42
AL		 3541{
3542 qemu_mutex_unlock(&qemu_global_mutex);
3543}
3544
3545static int all_vcpus_paused(void)
3546{
3547 CPUState *penv = first_cpu;
3548
3549 while (penv) {
3550 if (!penv->stopped)
3551 return 0;
3552 penv = (CPUState *)penv->next_cpu;
3553 }
3554
3555 return 1;
3556}
3557
3558static void pause_all_vcpus(void)
3559{
3560 CPUState *penv = first_cpu;
3561
3562 while (penv) {
3563 penv->stop = 1;
3564 qemu_thread_signal(penv->thread, SIGUSR1);
3565 qemu_cpu_kick(penv);
3566 penv = (CPUState *)penv->next_cpu;
3567 }
3568
3569 while (!all_vcpus_paused()) {
3570 qemu_cond_timedwait(&qemu_pause_cond, &qemu_global_mutex, 100);
3571 penv = first_cpu;
3572 while (penv) {
3573 qemu_thread_signal(penv->thread, SIGUSR1);
3574 penv = (CPUState *)penv->next_cpu;
3575 }
3576 }
3577}
3578
3579static void resume_all_vcpus(void)
3580{
3581 CPUState *penv = first_cpu;
3582
3583 while (penv) {
3584 penv->stop = 0;
3585 penv->stopped = 0;
3586 qemu_thread_signal(penv->thread, SIGUSR1);
3587 qemu_cpu_kick(penv);
3588 penv = (CPUState *)penv->next_cpu;
3589 }
3590}
3591
3592static void tcg_init_vcpu(void *_env)
3593{
3594 CPUState *env = _env;
3595 /* share a single thread for all cpus with TCG */
3596 if (!tcg_cpu_thread) {
3597 env->thread = qemu_mallocz(sizeof(QemuThread));
3598 env->halt_cond = qemu_mallocz(sizeof(QemuCond));
3599 qemu_cond_init(env->halt_cond);
3600 qemu_thread_create(env->thread, tcg_cpu_thread_fn, env);
3601 while (env->created == 0)
3602 qemu_cond_timedwait(&qemu_cpu_cond, &qemu_global_mutex, 100);
3603 tcg_cpu_thread = env->thread;
3604 tcg_halt_cond = env->halt_cond;
3605 } else {
3606 env->thread = tcg_cpu_thread;
3607 env->halt_cond = tcg_halt_cond;
3608 }
3609}
3610
3611static void kvm_start_vcpu(CPUState *env)
3612{
d6dc3d42
AL		 3613 env->thread = qemu_mallocz(sizeof(QemuThread));
3614 env->halt_cond = qemu_mallocz(sizeof(QemuCond));
3615 qemu_cond_init(env->halt_cond);
3616 qemu_thread_create(env->thread, kvm_cpu_thread_fn, env);
3617 while (env->created == 0)
3618 qemu_cond_timedwait(&qemu_cpu_cond, &qemu_global_mutex, 100);
3619}
3620
3621void qemu_init_vcpu(void *_env)
3622{
3623 CPUState *env = _env;
3624
3f7638ec
JD		 3625 env->nr_cores = smp_cores;
3626 env->nr_threads = smp_threads;
d6dc3d42
AL		 3627 if (kvm_enabled())
3628 kvm_start_vcpu(env);
3629 else
3630 tcg_init_vcpu(env);
3631}
3632
3633void qemu_notify_event(void)
3634{
3635 qemu_event_increment();
3636}
3637
3638void vm_stop(int reason)
3639{
3640 QemuThread me;
3641 qemu_thread_self(&me);
3642
3643 if (!qemu_thread_equal(&me, &io_thread)) {
3644 qemu_system_vmstop_request(reason);
3645 /*
3646 * FIXME: should not return to device code in case
3647 * vm_stop() has been requested.
3648 */
3649 if (cpu_single_env) {
3650 cpu_exit(cpu_single_env);
3651 cpu_single_env->stop = 1;
3652 }
3653 return;
3654 }
3655 do_vm_stop(reason);
3656}
3657
3658#endif
3659
3660
877cf882 3661#ifdef _WIN32
69d6451c 3662static void host_main_loop_wait(int *timeout)
56f3a5d0
AL		 3663{
3664 int ret, ret2, i;
f331110f
FB		 3665 PollingEntry *pe;
3666
c4b1fcc0 3667
f331110f
FB		 3668 /* XXX: need to suppress polling by better using win32 events */
3669 ret = 0;
3670 for(pe = first_polling_entry; pe != NULL; pe = pe->next) {
3671 ret |= pe->func(pe->opaque);
3672 }
e6b1e558 3673 if (ret == 0) {
a18e524a
FB		 3674 int err;
3675 WaitObjects *w = &wait_objects;
3b46e624 3676
56f3a5d0 3677 ret = WaitForMultipleObjects(w->num, w->events, FALSE, *timeout);
a18e524a
FB		 3678 if (WAIT_OBJECT_0 + 0 <= ret && ret <= WAIT_OBJECT_0 + w->num - 1) {
3679 if (w->func[ret - WAIT_OBJECT_0])
3680 w->func[ret - WAIT_OBJECT_0](w->opaque[ret - WAIT_OBJECT_0]);
3b46e624 3681
5fafdf24 3682 /* Check for additional signaled events */
e6b1e558 3683 for(i = (ret - WAIT_OBJECT_0 + 1); i < w->num; i++) {
3b46e624 3684
e6b1e558
TS		 3685 /* Check if event is signaled */
3686 ret2 = WaitForSingleObject(w->events[i], 0);
3687 if(ret2 == WAIT_OBJECT_0) {
3688 if (w->func[i])
3689 w->func[i](w->opaque[i]);
3690 } else if (ret2 == WAIT_TIMEOUT) {
3691 } else {
3692 err = GetLastError();
3693 fprintf(stderr, "WaitForSingleObject error %d %d\n", i, err);
3b46e624
TS		 3694 }
3695 }
a18e524a
FB		 3696 } else if (ret == WAIT_TIMEOUT) {
3697 } else {
3698 err = GetLastError();
e6b1e558 3699 fprintf(stderr, "WaitForMultipleObjects error %d %d\n", ret, err);
a18e524a 3700 }
f331110f 3701 }
56f3a5d0
AL		 3702
3703 *timeout = 0;
3704}
3705#else
69d6451c 3706static void host_main_loop_wait(int *timeout)
56f3a5d0
AL		 3707{
3708}
fd1dff4b 3709#endif
56f3a5d0
AL		 3710
3711void main_loop_wait(int timeout)
3712{
3713 IOHandlerRecord *ioh;
3714 fd_set rfds, wfds, xfds;
3715 int ret, nfds;
3716 struct timeval tv;
3717
3718 qemu_bh_update_timeout(&timeout);
3719
3720 host_main_loop_wait(&timeout);
3721
fd1dff4b
FB		 3722 /* poll any events */
3723 /* XXX: separate device handlers from system ones */
6abfbd79 3724 nfds = -1;
fd1dff4b
FB		 3725 FD_ZERO(&rfds);
3726 FD_ZERO(&wfds);
e035649e 3727 FD_ZERO(&xfds);
fd1dff4b 3728 for(ioh = first_io_handler; ioh != NULL; ioh = ioh->next) {
cafffd40
TS		 3729 if (ioh->deleted)
3730 continue;
fd1dff4b
FB		 3731 if (ioh->fd_read &&
3732 (!ioh->fd_read_poll ||
3733 ioh->fd_read_poll(ioh->opaque) != 0)) {
3734 FD_SET(ioh->fd, &rfds);
3735 if (ioh->fd > nfds)
3736 nfds = ioh->fd;
3737 }
3738 if (ioh->fd_write) {
3739 FD_SET(ioh->fd, &wfds);
3740 if (ioh->fd > nfds)
3741 nfds = ioh->fd;
3742 }
3743 }
3b46e624 3744
56f3a5d0
AL		 3745 tv.tv_sec = timeout / 1000;
3746 tv.tv_usec = (timeout % 1000) * 1000;
3747
d918f23e
JK		 3748 slirp_select_fill(&nfds, &rfds, &wfds, &xfds);
3749
4870852c 3750 qemu_mutex_unlock_iothread();
e035649e 3751 ret = select(nfds + 1, &rfds, &wfds, &xfds, &tv);
4870852c 3752 qemu_mutex_lock_iothread();
fd1dff4b 3753 if (ret > 0) {
cafffd40
TS		 3754 IOHandlerRecord **pioh;
3755
3756 for(ioh = first_io_handler; ioh != NULL; ioh = ioh->next) {
6ab43fdc 3757 if (!ioh->deleted && ioh->fd_read && FD_ISSET(ioh->fd, &rfds)) {
fd1dff4b 3758 ioh->fd_read(ioh->opaque);
7c9d8e07 3759 }
6ab43fdc 3760 if (!ioh->deleted && ioh->fd_write && FD_ISSET(ioh->fd, &wfds)) {
fd1dff4b 3761 ioh->fd_write(ioh->opaque);
c4b1fcc0 3762 }
b4608c04 3763 }
cafffd40
TS		 3764
3765 /* remove deleted IO handlers */
3766 pioh = &first_io_handler;
3767 while (*pioh) {
3768 ioh = *pioh;
3769 if (ioh->deleted) {
3770 *pioh = ioh->next;
3771 qemu_free(ioh);
5fafdf24 3772 } else
cafffd40
TS		 3773 pioh = &ioh->next;
3774 }
fd1dff4b 3775 }
d918f23e
JK		 3776
3777 slirp_select_poll(&rfds, &wfds, &xfds, (ret < 0));
b4608c04 3778
50317c7f
AL		 3779 /* rearm timer, if not periodic */
3780 if (alarm_timer->flags & ALARM_FLAG_EXPIRED) {
3781 alarm_timer->flags &= ~ALARM_FLAG_EXPIRED;
3782 qemu_rearm_alarm_timer(alarm_timer);
3783 }
3784
357c692c 3785 /* vm time timers */
d6dc3d42
AL		 3786 if (vm_running) {
3787 if (!cur_cpu || likely(!(cur_cpu->singlestep_enabled & SSTEP_NOTIMER)))
0fdddf80
JK		 3788 qemu_run_timers(&active_timers[QEMU_CLOCK_VIRTUAL],
3789 qemu_get_clock(vm_clock));
d6dc3d42 3790 }
357c692c
AL		 3791
3792 /* real time timers */
0fdddf80 3793 qemu_run_timers(&active_timers[QEMU_CLOCK_REALTIME],
357c692c
AL		 3794 qemu_get_clock(rt_clock));
3795
21d5d12b
JK		 3796 qemu_run_timers(&active_timers[QEMU_CLOCK_HOST],
3797 qemu_get_clock(host_clock));
3798
423f0742
PB		 3799 /* Check bottom-halves last in case any of the earlier events triggered
3800 them. */
3801 qemu_bh_poll();
3b46e624 3802
5905b2e5
FB		 3803}
3804
43b96858 3805static int qemu_cpu_exec(CPUState *env)
5905b2e5 3806{
43b96858 3807 int ret;
89bfc105
FB		 3808#ifdef CONFIG_PROFILER
3809 int64_t ti;
3810#endif
5905b2e5 3811
89bfc105 3812#ifdef CONFIG_PROFILER
43b96858 3813 ti = profile_getclock();
89bfc105 3814#endif
43b96858
AL		 3815 if (use_icount) {
3816 int64_t count;
3817 int decr;
3818 qemu_icount -= (env->icount_decr.u16.low + env->icount_extra);
3819 env->icount_decr.u16.low = 0;
3820 env->icount_extra = 0;
3821 count = qemu_next_deadline();
3822 count = (count + (1 << icount_time_shift) - 1)
3823 >> icount_time_shift;
3824 qemu_icount += count;
3825 decr = (count > 0xffff) ? 0xffff : count;
3826 count -= decr;
3827 env->icount_decr.u16.low = decr;
3828 env->icount_extra = count;
3829 }
3830 ret = cpu_exec(env);
89bfc105 3831#ifdef CONFIG_PROFILER
43b96858 3832 qemu_time += profile_getclock() - ti;
89bfc105 3833#endif
43b96858
AL		 3834 if (use_icount) {
3835 /* Fold pending instructions back into the
3836 instruction counter, and clear the interrupt flag. */
3837 qemu_icount -= (env->icount_decr.u16.low
3838 + env->icount_extra);
3839 env->icount_decr.u32 = 0;
3840 env->icount_extra = 0;
3841 }
3842 return ret;
3843}
3844
e6e35b1e
AL		 3845static void tcg_cpu_exec(void)
3846{
d6dc3d42 3847 int ret = 0;
e6e35b1e
AL		 3848
3849 if (next_cpu == NULL)
3850 next_cpu = first_cpu;
3851 for (; next_cpu != NULL; next_cpu = next_cpu->next_cpu) {
3852 CPUState *env = cur_cpu = next_cpu;
3853
3854 if (!vm_running)
3855 break;
3856 if (timer_alarm_pending) {
3857 timer_alarm_pending = 0;
3858 break;
3859 }
d6dc3d42
AL		 3860 if (cpu_can_run(env))
3861 ret = qemu_cpu_exec(env);
e6e35b1e
AL		 3862 if (ret == EXCP_DEBUG) {
3863 gdb_set_stop_cpu(env);
3864 debug_requested = 1;
3865 break;
3866 }
3867 }
3868}
3869
43b96858
AL		 3870static int cpu_has_work(CPUState *env)
3871{
d6dc3d42
AL		 3872 if (env->stop)
3873 return 1;
3874 if (env->stopped)
3875 return 0;
43b96858
AL		 3876 if (!env->halted)
3877 return 1;
3878 if (qemu_cpu_has_work(env))
3879 return 1;
3880 return 0;
3881}
3882
3883static int tcg_has_work(void)
3884{
3885 CPUState *env;
3886
3887 for (env = first_cpu; env != NULL; env = env->next_cpu)
3888 if (cpu_has_work(env))
3889 return 1;
3890 return 0;
3891}
3892
3893static int qemu_calculate_timeout(void)
3894{
b319820d 3895#ifndef CONFIG_IOTHREAD
43b96858
AL		 3896 int timeout;
3897
3898 if (!vm_running)
3899 timeout = 5000;
3900 else if (tcg_has_work())
3901 timeout = 0;
3902 else if (!use_icount)
3903 timeout = 5000;
3904 else {
3905 /* XXX: use timeout computed from timers */
3906 int64_t add;
3907 int64_t delta;
3908 /* Advance virtual time to the next event. */
3909 if (use_icount == 1) {
3910 /* When not using an adaptive execution frequency
3911 we tend to get badly out of sync with real time,
3912 so just delay for a reasonable amount of time. */
3913 delta = 0;
3914 } else {
3915 delta = cpu_get_icount() - cpu_get_clock();
3916 }
3917 if (delta > 0) {
3918 /* If virtual time is ahead of real time then just
3919 wait for IO. */
3920 timeout = (delta / 1000000) + 1;
3921 } else {
3922 /* Wait for either IO to occur or the next
3923 timer event. */
3924 add = qemu_next_deadline();
3925 /* We advance the timer before checking for IO.
3926 Limit the amount we advance so that early IO
3927 activity won't get the guest too far ahead. */
3928 if (add > 10000000)
3929 add = 10000000;
3930 delta += add;
3931 add = (add + (1 << icount_time_shift) - 1)
3932 >> icount_time_shift;
3933 qemu_icount += add;
3934 timeout = delta / 1000000;
3935 if (timeout < 0)
3936 timeout = 0;
3937 }
3938 }
3939
3940 return timeout;
b319820d
LC		 3941#else /* CONFIG_IOTHREAD */
3942 return 1000;
3943#endif
43b96858
AL		 3944}
3945
3946static int vm_can_run(void)
3947{
3948 if (powerdown_requested)
3949 return 0;
3950 if (reset_requested)
3951 return 0;
3952 if (shutdown_requested)
3953 return 0;
e568902a
AL		 3954 if (debug_requested)
3955 return 0;
43b96858
AL		 3956 return 1;
3957}
3958
d9c32310
BS		 3959qemu_irq qemu_system_powerdown;
3960
43b96858
AL		 3961static void main_loop(void)
3962{
6e29f5da 3963 int r;
e6e35b1e 3964
d6dc3d42
AL		 3965#ifdef CONFIG_IOTHREAD
3966 qemu_system_ready = 1;
3967 qemu_cond_broadcast(&qemu_system_cond);
3968#endif
3969
6e29f5da 3970 for (;;) {
43b96858 3971 do {
e6e35b1e
AL		 3972#ifdef CONFIG_PROFILER
3973 int64_t ti;
3974#endif
d6dc3d42 3975#ifndef CONFIG_IOTHREAD
e6e35b1e 3976 tcg_cpu_exec();
d6dc3d42 3977#endif
89bfc105 3978#ifdef CONFIG_PROFILER
43b96858 3979 ti = profile_getclock();
89bfc105 3980#endif
43b96858 3981 main_loop_wait(qemu_calculate_timeout());
89bfc105 3982#ifdef CONFIG_PROFILER
43b96858 3983 dev_time += profile_getclock() - ti;
89bfc105 3984#endif
e568902a 3985 } while (vm_can_run());
43b96858 3986
b1a15e7e 3987 if (qemu_debug_requested()) {
242cd003 3988 monitor_protocol_event(QEVENT_DEBUG, NULL);
e568902a 3989 vm_stop(EXCP_DEBUG);
b1a15e7e 3990 }
43b96858 3991 if (qemu_shutdown_requested()) {
242cd003 3992 monitor_protocol_event(QEVENT_SHUTDOWN, NULL);
43b96858
AL		 3993 if (no_shutdown) {
3994 vm_stop(0);
3995 no_shutdown = 0;
3996 } else
3997 break;
3998 }
d6dc3d42 3999 if (qemu_reset_requested()) {
242cd003 4000 monitor_protocol_event(QEVENT_RESET, NULL);
d6dc3d42 4001 pause_all_vcpus();
43b96858 4002 qemu_system_reset();
d6dc3d42
AL		 4003 resume_all_vcpus();
4004 }
d9c32310 4005 if (qemu_powerdown_requested()) {
242cd003 4006 monitor_protocol_event(QEVENT_POWERDOWN, NULL);
d9c32310
BS		 4007 qemu_irq_raise(qemu_system_powerdown);
4008 }
b1a15e7e 4009 if ((r = qemu_vmstop_requested())) {
242cd003 4010 monitor_protocol_event(QEVENT_STOP, NULL);
6e29f5da 4011 vm_stop(r);
b1a15e7e 4012 }
b4608c04 4013 }
d6dc3d42 4014 pause_all_vcpus();
b4608c04
FB		 4015}
4016
9bd7e6d9
PB		 4017static void version(void)
4018{
4a19f1ec 4019 printf("QEMU PC emulator version " QEMU_VERSION QEMU_PKGVERSION ", Copyright (c) 2003-2008 Fabrice Bellard\n");
9bd7e6d9
PB		 4020}
4021
15f82208 4022static void help(int exitcode)
0824d6fc 4023{
9bd7e6d9
PB		 4024 version();
4025 printf("usage: %s [options] [disk_image]\n"
0824d6fc 4026 "\n"
a20dd508 4027 "'disk_image' is a raw hard image image for IDE hard disk 0\n"
fc01f7e7 4028 "\n"
5824d651
BS		 4029#define DEF(option, opt_arg, opt_enum, opt_help) \
4030 opt_help
4031#define DEFHEADING(text) stringify(text) "\n"
4032#include "qemu-options.h"
4033#undef DEF
4034#undef DEFHEADING
4035#undef GEN_DOCS
0824d6fc 4036 "\n"
82c643ff 4037 "During emulation, the following keys are useful:\n"
032a8c9e
FB		 4038 "ctrl-alt-f toggle full screen\n"
4039 "ctrl-alt-n switch to virtual console 'n'\n"
4040 "ctrl-alt toggle mouse and keyboard grab\n"
82c643ff
FB		 4041 "\n"
4042 "When using -nographic, press 'ctrl-a h' to get some help.\n"
4043 ,
0db63474 4044 "qemu",
a00bad7e 4045 DEFAULT_RAM_SIZE,
7c9d8e07 4046#ifndef _WIN32
a00bad7e 4047 DEFAULT_NETWORK_SCRIPT,
b46a8906 4048 DEFAULT_NETWORK_DOWN_SCRIPT,
7c9d8e07 4049#endif
6e44ba7f 4050 DEFAULT_GDBSTUB_PORT,
bce61846 4051 "/tmp/qemu.log");
15f82208 4052 exit(exitcode);
0824d6fc
FB		 4053}
4054
cd6f1169
FB		 4055#define HAS_ARG 0x0001
4056
4057enum {
5824d651
BS		 4058#define DEF(option, opt_arg, opt_enum, opt_help) \
4059 opt_enum,
4060#define DEFHEADING(text)
4061#include "qemu-options.h"
4062#undef DEF
4063#undef DEFHEADING
4064#undef GEN_DOCS
cd6f1169
FB		 4065};
4066
4067typedef struct QEMUOption {
4068 const char *name;
4069 int flags;
4070 int index;
4071} QEMUOption;
4072
dbed7e40 4073static const QEMUOption qemu_options[] = {
cd6f1169 4074 { "h", 0, QEMU_OPTION_h },
5824d651
BS		 4075#define DEF(option, opt_arg, opt_enum, opt_help) \
4076 { option, opt_arg, opt_enum },
4077#define DEFHEADING(text)
4078#include "qemu-options.h"
4079#undef DEF
4080#undef DEFHEADING
4081#undef GEN_DOCS
cd6f1169 4082 { NULL },
fc01f7e7
FB		 4083};
4084
1d14ffa9 4085#ifdef HAS_AUDIO
6a36d84e 4086struct soundhw soundhw[] = {
b00052e4 4087#ifdef HAS_AUDIO_CHOICE
4ce7ff6e 4088#if defined(TARGET_I386) || defined(TARGET_MIPS)
fd06c375
FB		 4089 {
4090 "pcspk",
4091 "PC speaker",
4092 0,
4093 1,
4094 { .init_isa = pcspk_audio_init }
4095 },
4096#endif
4c9b53e3 4097
4098#ifdef CONFIG_SB16
6a36d84e
FB		 4099 {
4100 "sb16",
4101 "Creative Sound Blaster 16",
4102 0,
4103 1,
4104 { .init_isa = SB16_init }
4105 },
4c9b53e3 4106#endif
6a36d84e 4107
cc53d26d 4108#ifdef CONFIG_CS4231A
4109 {
4110 "cs4231a",
4111 "CS4231A",
4112 0,
4113 1,
4114 { .init_isa = cs4231a_init }
4115 },
4116#endif
4117
1d14ffa9 4118#ifdef CONFIG_ADLIB
6a36d84e
FB		 4119 {
4120 "adlib",
1d14ffa9 4121#ifdef HAS_YMF262
6a36d84e 4122 "Yamaha YMF262 (OPL3)",
1d14ffa9 4123#else
6a36d84e 4124 "Yamaha YM3812 (OPL2)",
1d14ffa9 4125#endif
6a36d84e
FB		 4126 0,
4127 1,
4128 { .init_isa = Adlib_init }
4129 },
1d14ffa9 4130#endif
6a36d84e 4131
1d14ffa9 4132#ifdef CONFIG_GUS
6a36d84e
FB		 4133 {
4134 "gus",
4135 "Gravis Ultrasound GF1",
4136 0,
4137 1,
4138 { .init_isa = GUS_init }
4139 },
1d14ffa9 4140#endif
6a36d84e 4141
4c9b53e3 4142#ifdef CONFIG_AC97
e5c9a13e
AZ		 4143 {
4144 "ac97",
4145 "Intel 82801AA AC97 Audio",
4146 0,
4147 0,
4148 { .init_pci = ac97_init }
4149 },
4c9b53e3 4150#endif
e5c9a13e 4151
4c9b53e3 4152#ifdef CONFIG_ES1370
6a36d84e
FB		 4153 {
4154 "es1370",
4155 "ENSONIQ AudioPCI ES1370",
4156 0,
4157 0,
4158 { .init_pci = es1370_init }
4159 },
b00052e4 4160#endif
6a36d84e 4161
4c9b53e3 4162#endif /* HAS_AUDIO_CHOICE */
4163
6a36d84e
FB		 4164 { NULL, NULL, 0, 0, { NULL } }
4165};
4166
4167static void select_soundhw (const char *optarg)
4168{
4169 struct soundhw *c;
4170
4171 if (*optarg == '?') {
4172 show_valid_cards:
4173
4174 printf ("Valid sound card names (comma separated):\n");
4175 for (c = soundhw; c->name; ++c) {
4176 printf ("%-11s %s\n", c->name, c->descr);
4177 }
4178 printf ("\n-soundhw all will enable all of the above\n");
1d14ffa9
FB		 4179 exit (*optarg != '?');
4180 }
4181 else {
6a36d84e 4182 size_t l;
1d14ffa9
FB		 4183 const char *p;
4184 char *e;
4185 int bad_card = 0;
4186
6a36d84e
FB		 4187 if (!strcmp (optarg, "all")) {
4188 for (c = soundhw; c->name; ++c) {
4189 c->enabled = 1;
4190 }
4191 return;
4192 }
1d14ffa9 4193
6a36d84e 4194 p = optarg;
1d14ffa9
FB		 4195 while (*p) {
4196 e = strchr (p, ',');
4197 l = !e ? strlen (p) : (size_t) (e - p);
6a36d84e
FB		 4198
4199 for (c = soundhw; c->name; ++c) {
b3d6fb4a 4200 if (!strncmp (c->name, p, l) && !c->name[l]) {
6a36d84e 4201 c->enabled = 1;
1d14ffa9
FB		 4202 break;
4203 }
4204 }
6a36d84e
FB		 4205
4206 if (!c->name) {
1d14ffa9
FB		 4207 if (l > 80) {
4208 fprintf (stderr,
4209 "Unknown sound card name (too big to show)\n");
4210 }
4211 else {
4212 fprintf (stderr, "Unknown sound card name `%.*s'\n",
4213 (int) l, p);
4214 }
4215 bad_card = 1;
4216 }
4217 p += l + (e != NULL);
4218 }
4219
4220 if (bad_card)
4221 goto show_valid_cards;
4222 }
4223}
4224#endif
4225
3893c124 4226static void select_vgahw (const char *p)
4227{
4228 const char *opts;
4229
64465297 4230 default_vga = 0;
86176759 4231 vga_interface_type = VGA_NONE;
3893c124 4232 if (strstart(p, "std", &opts)) {
86176759 4233 vga_interface_type = VGA_STD;
3893c124 4234 } else if (strstart(p, "cirrus", &opts)) {
86176759 4235 vga_interface_type = VGA_CIRRUS;
3893c124 4236 } else if (strstart(p, "vmware", &opts)) {
86176759 4237 vga_interface_type = VGA_VMWARE;
94909d9f 4238 } else if (strstart(p, "xenfb", &opts)) {
86176759 4239 vga_interface_type = VGA_XENFB;
28b85ed8 4240 } else if (!strstart(p, "none", &opts)) {
3893c124 4241 invalid_vga:
4242 fprintf(stderr, "Unknown vga type: %s\n", p);
4243 exit(1);
4244 }
cb5a7aa8 4245 while (*opts) {
4246 const char *nextopt;
4247
4248 if (strstart(opts, ",retrace=", &nextopt)) {
4249 opts = nextopt;
4250 if (strstart(opts, "dumb", &nextopt))
4251 vga_retrace_method = VGA_RETRACE_DUMB;
4252 else if (strstart(opts, "precise", &nextopt))
4253 vga_retrace_method = VGA_RETRACE_PRECISE;
4254 else goto invalid_vga;
4255 } else goto invalid_vga;
4256 opts = nextopt;
4257 }
3893c124 4258}
4259
7d4c3d53
MA		 4260#ifdef TARGET_I386
4261static int balloon_parse(const char *arg)
4262{
382f0743 4263 QemuOpts *opts;
7d4c3d53 4264
382f0743
GH		 4265 if (strcmp(arg, "none") == 0) {
4266 return 0;
4267 }
4268
4269 if (!strncmp(arg, "virtio", 6)) {
4270 if (arg[6] == ',') {
4271 /* have params -> parse them */
4272 opts = qemu_opts_parse(&qemu_device_opts, arg+7, NULL);
4273 if (!opts)
4274 return -1;
4275 } else {
4276 /* create empty opts */
4277 opts = qemu_opts_create(&qemu_device_opts, NULL, 0);
7d4c3d53 4278 }
382f0743
GH		 4279 qemu_opt_set(opts, "driver", "virtio-balloon-pci");
4280 return 0;
7d4c3d53 4281 }
382f0743
GH		 4282
4283 return -1;
7d4c3d53
MA		 4284}
4285#endif
4286
3587d7e6
FB		 4287#ifdef _WIN32
4288static BOOL WINAPI qemu_ctrl_handler(DWORD type)
4289{
4290 exit(STATUS_CONTROL_C_EXIT);
4291 return TRUE;
4292}
4293#endif
4294
c4be29ff 4295int qemu_uuid_parse(const char *str, uint8_t *uuid)
8fcb1b90
BS		 4296{
4297 int ret;
4298
4299 if(strlen(str) != 36)
4300 return -1;
4301
4302 ret = sscanf(str, UUID_FMT, &uuid[0], &uuid[1], &uuid[2], &uuid[3],
4303 &uuid[4], &uuid[5], &uuid[6], &uuid[7], &uuid[8], &uuid[9],
4304 &uuid[10], &uuid[11], &uuid[12], &uuid[13], &uuid[14], &uuid[15]);
4305
4306 if(ret != 16)
4307 return -1;
4308
b6f6e3d3
AL		 4309#ifdef TARGET_I386
4310 smbios_add_field(1, offsetof(struct smbios_type_1, uuid), 16, uuid);
4311#endif
4312
8fcb1b90
BS		 4313 return 0;
4314}
4315
5b08fc10
AL		 4316#ifndef _WIN32
4317
4318static void termsig_handler(int signal)
4319{
4320 qemu_system_shutdown_request();
4321}
4322
7c3370d4
JK		 4323static void sigchld_handler(int signal)
4324{
4325 waitpid(-1, NULL, WNOHANG);
4326}
4327
4328static void sighandler_setup(void)
5b08fc10
AL		 4329{
4330 struct sigaction act;
4331
4332 memset(&act, 0, sizeof(act));
4333 act.sa_handler = termsig_handler;
4334 sigaction(SIGINT, &act, NULL);
4335 sigaction(SIGHUP, &act, NULL);
4336 sigaction(SIGTERM, &act, NULL);
7c3370d4
JK		 4337
4338 act.sa_handler = sigchld_handler;
4339 act.sa_flags = SA_NOCLDSTOP;
4340 sigaction(SIGCHLD, &act, NULL);
5b08fc10
AL		 4341}
4342
4343#endif
4344
5cea8590
PB		 4345#ifdef _WIN32
4346/* Look for support files in the same directory as the executable. */
4347static char *find_datadir(const char *argv0)
4348{
4349 char *p;
4350 char buf[MAX_PATH];
4351 DWORD len;
4352
4353 len = GetModuleFileName(NULL, buf, sizeof(buf) - 1);
4354 if (len == 0) {
c5947808 4355 return NULL;
5cea8590
PB		 4356 }
4357
4358 buf[len] = 0;
4359 p = buf + len - 1;
4360 while (p != buf && *p != '\\')
4361 p--;
4362 *p = 0;
4363 if (access(buf, R_OK) == 0) {
4364 return qemu_strdup(buf);
4365 }
4366 return NULL;
4367}
4368#else /* !_WIN32 */
4369
4370/* Find a likely location for support files using the location of the binary.
4371 For installed binaries this will be "$bindir/../share/qemu". When
4372 running from the build tree this will be "$bindir/../pc-bios". */
4373#define SHARE_SUFFIX "/share/qemu"
4374#define BUILD_SUFFIX "/pc-bios"
4375static char *find_datadir(const char *argv0)
4376{
4377 char *dir;
4378 char *p = NULL;
4379 char *res;
5cea8590 4380 char buf[PATH_MAX];
3a41759d 4381 size_t max_len;
5cea8590
PB		 4382
4383#if defined(__linux__)
4384 {
4385 int len;
4386 len = readlink("/proc/self/exe", buf, sizeof(buf) - 1);
4387 if (len > 0) {
4388 buf[len] = 0;
4389 p = buf;
4390 }
4391 }
4392#elif defined(__FreeBSD__)
4393 {
4394 int len;
4395 len = readlink("/proc/curproc/file", buf, sizeof(buf) - 1);
4396 if (len > 0) {
4397 buf[len] = 0;
4398 p = buf;
4399 }
4400 }
4401#endif
4402 /* If we don't have any way of figuring out the actual executable
4403 location then try argv[0]. */
4404 if (!p) {
4d224196 4405 p = realpath(argv0, buf);
5cea8590
PB		 4406 if (!p) {
4407 return NULL;
4408 }
4409 }
4410 dir = dirname(p);
4411 dir = dirname(dir);
4412
3a41759d
BS		 4413 max_len = strlen(dir) +
4414 MAX(strlen(SHARE_SUFFIX), strlen(BUILD_SUFFIX)) + 1;
4415 res = qemu_mallocz(max_len);
4416 snprintf(res, max_len, "%s%s", dir, SHARE_SUFFIX);
5cea8590 4417 if (access(res, R_OK)) {
3a41759d 4418 snprintf(res, max_len, "%s%s", dir, BUILD_SUFFIX);
5cea8590
PB		 4419 if (access(res, R_OK)) {
4420 qemu_free(res);
4421 res = NULL;
4422 }
4423 }
4d224196 4424
5cea8590
PB		 4425 return res;
4426}
4427#undef SHARE_SUFFIX
4428#undef BUILD_SUFFIX
4429#endif
4430
4431char *qemu_find_file(int type, const char *name)
4432{
4433 int len;
4434 const char *subdir;
4435 char *buf;
4436
4437 /* If name contains path separators then try it as a straight path. */
4438 if ((strchr(name, '/') || strchr(name, '\\'))
4439 && access(name, R_OK) == 0) {
73ffc805 4440 return qemu_strdup(name);
5cea8590
PB		 4441 }
4442 switch (type) {
4443 case QEMU_FILE_TYPE_BIOS:
4444 subdir = "";
4445 break;
4446 case QEMU_FILE_TYPE_KEYMAP:
4447 subdir = "keymaps/";
4448 break;
4449 default:
4450 abort();
4451 }
4452 len = strlen(data_dir) + strlen(name) + strlen(subdir) + 2;
4453 buf = qemu_mallocz(len);
3a41759d 4454 snprintf(buf, len, "%s/%s%s", data_dir, subdir, name);
5cea8590
PB		 4455 if (access(buf, R_OK)) {
4456 qemu_free(buf);
4457 return NULL;
4458 }
4459 return buf;
4460}
4461
f31d07d1
GH		 4462static int device_init_func(QemuOpts *opts, void *opaque)
4463{
4464 DeviceState *dev;
4465
4466 dev = qdev_device_add(opts);
4467 if (!dev)
4468 return -1;
4469 return 0;
4470}
4471
1a688d3b
GH		 4472static int chardev_init_func(QemuOpts *opts, void *opaque)
4473{
4474 CharDriverState *chr;
4475
4476 chr = qemu_chr_open_opts(opts, NULL);
4477 if (!chr)
4478 return -1;
4479 return 0;
4480}
4481
88589343
GH		 4482static int mon_init_func(QemuOpts *opts, void *opaque)
4483{
4484 CharDriverState *chr;
4485 const char *chardev;
4486 const char *mode;
4487 int flags;
4488
4489 mode = qemu_opt_get(opts, "mode");
4490 if (mode == NULL) {
4491 mode = "readline";
4492 }
4493 if (strcmp(mode, "readline") == 0) {
4494 flags = MONITOR_USE_READLINE;
4495 } else if (strcmp(mode, "control") == 0) {
4496 flags = MONITOR_USE_CONTROL;
4497 } else {
4498 fprintf(stderr, "unknown monitor mode \"%s\"\n", mode);
4499 exit(1);
4500 }
4501
4502 if (qemu_opt_get_bool(opts, "default", 0))
4503 flags |= MONITOR_IS_DEFAULT;
4504
4505 chardev = qemu_opt_get(opts, "chardev");
4506 chr = qemu_chr_find(chardev);
4507 if (chr == NULL) {
4508 fprintf(stderr, "chardev \"%s\" not found\n", chardev);
4509 exit(1);
4510 }
4511
4512 monitor_init(chr, flags);
4513 return 0;
4514}
4515
6ca5582d 4516static void monitor_parse(const char *optarg, const char *mode)
88589343
GH		 4517{
4518 static int monitor_device_index = 0;
4519 QemuOpts *opts;
4520 const char *p;
4521 char label[32];
4522 int def = 0;
4523
4524 if (strstart(optarg, "chardev:", &p)) {
4525 snprintf(label, sizeof(label), "%s", p);
4526 } else {
4527 if (monitor_device_index) {
4528 snprintf(label, sizeof(label), "monitor%d",
4529 monitor_device_index);
4530 } else {
4531 snprintf(label, sizeof(label), "monitor");
4532 def = 1;
4533 }
4534 opts = qemu_chr_parse_compat(label, optarg);
4535 if (!opts) {
4536 fprintf(stderr, "parse error: %s\n", optarg);
4537 exit(1);
4538 }
4539 }
4540
4541 opts = qemu_opts_create(&qemu_mon_opts, label, 1);
4542 if (!opts) {
4543 fprintf(stderr, "duplicate chardev: %s\n", label);
4544 exit(1);
4545 }
6ca5582d 4546 qemu_opt_set(opts, "mode", mode);
88589343
GH		 4547 qemu_opt_set(opts, "chardev", label);
4548 if (def)
4549 qemu_opt_set(opts, "default", "on");
4550 monitor_device_index++;
4551}
4552
bd3c948d
GH		 4553struct device_config {
4554 enum {
aee1b935
GH		 4555 DEV_USB, /* -usbdevice */
4556 DEV_BT, /* -bt */
4557 DEV_SERIAL, /* -serial */
4558 DEV_PARALLEL, /* -parallel */
4559 DEV_VIRTCON, /* -virtioconsole */
c9f398e5 4560 DEV_DEBUGCON, /* -debugcon */
bd3c948d
GH		 4561 } type;
4562 const char *cmdline;
72cf2d4f 4563 QTAILQ_ENTRY(device_config) next;
bd3c948d 4564};
72cf2d4f 4565QTAILQ_HEAD(, device_config) device_configs = QTAILQ_HEAD_INITIALIZER(device_configs);
bd3c948d
GH		 4566
4567static void add_device_config(int type, const char *cmdline)
4568{
4569 struct device_config *conf;
4570
4571 conf = qemu_mallocz(sizeof(*conf));
4572 conf->type = type;
4573 conf->cmdline = cmdline;
72cf2d4f 4574 QTAILQ_INSERT_TAIL(&device_configs, conf, next);
bd3c948d
GH		 4575}
4576
4577static int foreach_device_config(int type, int (*func)(const char *cmdline))
4578{
4579 struct device_config *conf;
4580 int rc;
4581
72cf2d4f 4582 QTAILQ_FOREACH(conf, &device_configs, next) {
bd3c948d
GH		 4583 if (conf->type != type)
4584 continue;
4585 rc = func(conf->cmdline);
4586 if (0 != rc)
4587 return rc;
4588 }
4589 return 0;
4590}
4591
998bbd74
GH		 4592static int serial_parse(const char *devname)
4593{
4594 static int index = 0;
4595 char label[32];
4596
4597 if (strcmp(devname, "none") == 0)
4598 return 0;
4599 if (index == MAX_SERIAL_PORTS) {
4600 fprintf(stderr, "qemu: too many serial ports\n");
4601 exit(1);
4602 }
4603 snprintf(label, sizeof(label), "serial%d", index);
4604 serial_hds[index] = qemu_chr_open(label, devname, NULL);
4605 if (!serial_hds[index]) {
4606 fprintf(stderr, "qemu: could not open serial device '%s': %s\n",
4607 devname, strerror(errno));
4608 return -1;
4609 }
4610 index++;
4611 return 0;
4612}
4613
6a5e8b0e
GH		 4614static int parallel_parse(const char *devname)
4615{
4616 static int index = 0;
4617 char label[32];
4618
4619 if (strcmp(devname, "none") == 0)
4620 return 0;
4621 if (index == MAX_PARALLEL_PORTS) {
4622 fprintf(stderr, "qemu: too many parallel ports\n");
4623 exit(1);
4624 }
4625 snprintf(label, sizeof(label), "parallel%d", index);
4626 parallel_hds[index] = qemu_chr_open(label, devname, NULL);
4627 if (!parallel_hds[index]) {
4628 fprintf(stderr, "qemu: could not open parallel device '%s': %s\n",
4629 devname, strerror(errno));
4630 return -1;
4631 }
4632 index++;
4633 return 0;
4634}
4635
aee1b935
GH		 4636static int virtcon_parse(const char *devname)
4637{
4638 static int index = 0;
4639 char label[32];
392ecf54 4640 QemuOpts *bus_opts, *dev_opts;
aee1b935
GH		 4641
4642 if (strcmp(devname, "none") == 0)
4643 return 0;
4644 if (index == MAX_VIRTIO_CONSOLES) {
4645 fprintf(stderr, "qemu: too many virtio consoles\n");
4646 exit(1);
4647 }
392ecf54
AS		 4648
4649 bus_opts = qemu_opts_create(&qemu_device_opts, NULL, 0);
4650 qemu_opt_set(bus_opts, "driver", "virtio-serial");
4651
4652 dev_opts = qemu_opts_create(&qemu_device_opts, NULL, 0);
4653 qemu_opt_set(dev_opts, "driver", "virtconsole");
4654
aee1b935
GH		 4655 snprintf(label, sizeof(label), "virtcon%d", index);
4656 virtcon_hds[index] = qemu_chr_open(label, devname, NULL);
4657 if (!virtcon_hds[index]) {
4658 fprintf(stderr, "qemu: could not open virtio console '%s': %s\n",
4659 devname, strerror(errno));
4660 return -1;
4661 }
392ecf54
AS		 4662 qemu_opt_set(dev_opts, "chardev", label);
4663
aee1b935
GH		 4664 index++;
4665 return 0;
4666}
4667
c9f398e5
PA		 4668static int debugcon_parse(const char *devname)
4669{
4670 QemuOpts *opts;
4671
4672 if (!qemu_chr_open("debugcon", devname, NULL)) {
4673 exit(1);
4674 }
4675 opts = qemu_opts_create(&qemu_device_opts, "debugcon", 1);
4676 if (!opts) {
4677 fprintf(stderr, "qemu: already have a debugcon device\n");
4678 exit(1);
4679 }
4680 qemu_opt_set(opts, "driver", "isa-debugcon");
4681 qemu_opt_set(opts, "chardev", "debugcon");
4682 return 0;
4683}
4684
6530a97b
AL		 4685static const QEMUOption *lookup_opt(int argc, char **argv,
4686 const char **poptarg, int *poptind)
4687{
4688 const QEMUOption *popt;
4689 int optind = *poptind;
4690 char *r = argv[optind];
4691 const char *optarg;
4692
4693 optind++;
4694 /* Treat --foo the same as -foo. */
4695 if (r[1] == '-')
4696 r++;
4697 popt = qemu_options;
4698 for(;;) {
4699 if (!popt->name) {
4700 fprintf(stderr, "%s: invalid option -- '%s'\n",
4701 argv[0], r);
4702 exit(1);
4703 }
4704 if (!strcmp(popt->name, r + 1))
4705 break;
4706 popt++;
4707 }
4708 if (popt->flags & HAS_ARG) {
4709 if (optind >= argc) {
4710 fprintf(stderr, "%s: option '%s' requires an argument\n",
4711 argv[0], r);
4712 exit(1);
4713 }
4714 optarg = argv[optind++];
4715 } else {
4716 optarg = NULL;
4717 }
4718
4719 *poptarg = optarg;
4720 *poptind = optind;
4721
4722 return popt;
4723}
4724
902b3d5c 4725int main(int argc, char **argv, char **envp)
0824d6fc 4726{
59030a8c 4727 const char *gdbstub_dev = NULL;
28c5af54 4728 uint32_t boot_devices_bitmap = 0;
e4bcb14c 4729 int i;
28c5af54 4730 int snapshot, linux_boot, net_boot;
7f7f9873 4731 const char *initrd_filename;
a20dd508 4732 const char *kernel_filename, *kernel_cmdline;
195325a4 4733 char boot_devices[33] = "cad"; /* default to HD->floppy->CD-ROM */
3023f332 4734 DisplayState *ds;
7d957bd8 4735 DisplayChangeListener *dcl;
46d4767d 4736 int cyls, heads, secs, translation;
f31d07d1 4737 QemuOpts *hda_opts = NULL, *opts;
cd6f1169 4738 int optind;
6530a97b 4739 const char *optarg;
d63d307f 4740 const char *loadvm = NULL;
cc1daa40 4741 QEMUMachine *machine;
94fc95cd 4742 const char *cpu_model;
b9e82a59 4743#ifndef _WIN32
71e3ceb8 4744 int fds[2];
b9e82a59 4745#endif
26a5f13b 4746 int tb_size;
93815bc2 4747 const char *pid_file = NULL;
5bb7910a 4748 const char *incoming = NULL;
b9e82a59 4749#ifndef _WIN32
54042bcf
AL		 4750 int fd = 0;
4751 struct passwd *pwd = NULL;
0858532e
AL		 4752 const char *chroot_dir = NULL;
4753 const char *run_as = NULL;
b9e82a59 4754#endif
268a362c 4755 CPUState *env;
993fbfdb 4756 int show_vnc_port = 0;
292444cb 4757 int defconfig = 1;
0bd48850 4758
6875204c
JK		 4759 init_clocks();
4760
ac7531ec 4761 qemu_errors_to_file(stderr);
902b3d5c 4762 qemu_cache_utils_init(envp);
4763
72cf2d4f 4764 QLIST_INIT (&vm_change_state_head);
be995c27
FB		 4765#ifndef _WIN32
4766 {
4767 struct sigaction act;
4768 sigfillset(&act.sa_mask);
4769 act.sa_flags = 0;
4770 act.sa_handler = SIG_IGN;
4771 sigaction(SIGPIPE, &act, NULL);
4772 }
3587d7e6
FB		 4773#else
4774 SetConsoleCtrlHandler(qemu_ctrl_handler, TRUE);
a8e5ac33
FB		 4775 /* Note: cpu_interrupt() is currently not SMP safe, so we force
4776 QEMU to run on a single CPU */
4777 {
4778 HANDLE h;
4779 DWORD mask, smask;
4780 int i;
4781 h = GetCurrentProcess();
4782 if (GetProcessAffinityMask(h, &mask, &smask)) {
4783 for(i = 0; i < 32; i++) {
4784 if (mask & (1 << i))
4785 break;
4786 }
4787 if (i != 32) {
4788 mask = 1 << i;
4789 SetProcessAffinityMask(h, mask);
4790 }
4791 }
4792 }
67b915a5 4793#endif
be995c27 4794
f80f9ec9 4795 module_call_init(MODULE_INIT_MACHINE);
0c257437 4796 machine = find_default_machine();
94fc95cd 4797 cpu_model = NULL;
fc01f7e7 4798 initrd_filename = NULL;
4fc5d071 4799 ram_size = 0;
33e3963e 4800 snapshot = 0;
a20dd508
FB		 4801 kernel_filename = NULL;
4802 kernel_cmdline = "";
c4b1fcc0 4803 cyls = heads = secs = 0;
46d4767d 4804 translation = BIOS_ATA_TRANSLATION_AUTO;
c4b1fcc0 4805
268a362c
AL		 4806 for (i = 0; i < MAX_NODES; i++) {
4807 node_mem[i] = 0;
4808 node_cpumask[i] = 0;
4809 }
4810
268a362c 4811 nb_numa_nodes = 0;
7c9d8e07 4812 nb_nics = 0;
3b46e624 4813
26a5f13b 4814 tb_size = 0;
41bd639b
BS		 4815 autostart= 1;
4816
292444cb
AL		 4817 /* first pass of option parsing */
4818 optind = 1;
4819 while (optind < argc) {
4820 if (argv[optind][0] != '-') {
4821 /* disk image */
28e68d68 4822 optind++;
292444cb
AL		 4823 continue;
4824 } else {
4825 const QEMUOption *popt;
4826
4827 popt = lookup_opt(argc, argv, &optarg, &optind);
4828 switch (popt->index) {
4829 case QEMU_OPTION_nodefconfig:
4830 defconfig=0;
4831 break;
4832 }
4833 }
4834 }
4835
4836 if (defconfig) {
4837 FILE *fp;
4838 fp = fopen(CONFIG_QEMU_CONFDIR "/qemu.conf", "r");
4839 if (fp) {
4840 if (qemu_config_parse(fp) != 0) {
4841 exit(1);
4842 }
4843 fclose(fp);
4844 }
4845
4846 fp = fopen(CONFIG_QEMU_CONFDIR "/target-" TARGET_ARCH ".conf", "r");
4847 if (fp) {
4848 if (qemu_config_parse(fp) != 0) {
4849 exit(1);
4850 }
4851 fclose(fp);
4852 }
4853 }
4854
4855 /* second pass of option parsing */
cd6f1169 4856 optind = 1;
0824d6fc 4857 for(;;) {
cd6f1169 4858 if (optind >= argc)
0824d6fc 4859 break;
6530a97b 4860 if (argv[optind][0] != '-') {
9dfd7c7a 4861 hda_opts = drive_add(argv[optind++], HD_ALIAS, 0);
cd6f1169
FB		 4862 } else {
4863 const QEMUOption *popt;
4864
6530a97b 4865 popt = lookup_opt(argc, argv, &optarg, &optind);
cd6f1169 4866 switch(popt->index) {
cc1daa40
FB		 4867 case QEMU_OPTION_M:
4868 machine = find_machine(optarg);
4869 if (!machine) {
4870 QEMUMachine *m;
4871 printf("Supported machines are:\n");
4872 for(m = first_machine; m != NULL; m = m->next) {
3f6599e6
MM		 4873 if (m->alias)
4874 printf("%-10s %s (alias of %s)\n",
4875 m->alias, m->desc, m->name);
cc1daa40 4876 printf("%-10s %s%s\n",
5fafdf24 4877 m->name, m->desc,
0c257437 4878 m->is_default ? " (default)" : "");
cc1daa40 4879 }
15f82208 4880 exit(*optarg != '?');
cc1daa40
FB		 4881 }
4882 break;
94fc95cd
JM		 4883 case QEMU_OPTION_cpu:
4884 /* hw initialization will check this */
15f82208 4885 if (*optarg == '?') {
c732abe2
JM		 4886/* XXX: implement xxx_cpu_list for targets that still miss it */
4887#if defined(cpu_list)
4888 cpu_list(stdout, &fprintf);
94fc95cd 4889#endif
15f82208 4890 exit(0);
94fc95cd
JM		 4891 } else {
4892 cpu_model = optarg;
4893 }
4894 break;
cd6f1169 4895 case QEMU_OPTION_initrd:
fc01f7e7
FB		 4896 initrd_filename = optarg;
4897 break;
cd6f1169 4898 case QEMU_OPTION_hda:
e4bcb14c 4899 if (cyls == 0)
9dfd7c7a 4900 hda_opts = drive_add(optarg, HD_ALIAS, 0);
e4bcb14c 4901 else
9dfd7c7a 4902 hda_opts = drive_add(optarg, HD_ALIAS
e4bcb14c 4903 ",cyls=%d,heads=%d,secs=%d%s",
609497ab 4904 0, cyls, heads, secs,
e4bcb14c
TS		 4905 translation == BIOS_ATA_TRANSLATION_LBA ?
4906 ",trans=lba" :
4907 translation == BIOS_ATA_TRANSLATION_NONE ?
4908 ",trans=none" : "");
4909 break;
cd6f1169 4910 case QEMU_OPTION_hdb:
cc1daa40
FB		 4911 case QEMU_OPTION_hdc:
4912 case QEMU_OPTION_hdd:
609497ab 4913 drive_add(optarg, HD_ALIAS, popt->index - QEMU_OPTION_hda);
fc01f7e7 4914 break;
e4bcb14c 4915 case QEMU_OPTION_drive:
609497ab 4916 drive_add(NULL, "%s", optarg);
e4bcb14c 4917 break;
d058fe03
GH		 4918 case QEMU_OPTION_set:
4919 if (qemu_set_option(optarg) != 0)
4920 exit(1);
4921 break;
d0fef6fb
GH		 4922 case QEMU_OPTION_global:
4923 if (qemu_global_option(optarg) != 0)
4924 exit(1);
4925 break;
3e3d5815 4926 case QEMU_OPTION_mtdblock:
609497ab 4927 drive_add(optarg, MTD_ALIAS);
3e3d5815 4928 break;
a1bb27b1 4929 case QEMU_OPTION_sd:
609497ab 4930 drive_add(optarg, SD_ALIAS);
a1bb27b1 4931 break;
86f55663 4932 case QEMU_OPTION_pflash:
609497ab 4933 drive_add(optarg, PFLASH_ALIAS);
86f55663 4934 break;
cd6f1169 4935 case QEMU_OPTION_snapshot:
33e3963e
FB		 4936 snapshot = 1;
4937 break;
cd6f1169 4938 case QEMU_OPTION_hdachs:
330d0414 4939 {
330d0414
FB		 4940 const char *p;
4941 p = optarg;
4942 cyls = strtol(p, (char **)&p, 0);
46d4767d
FB		 4943 if (cyls < 1 || cyls > 16383)
4944 goto chs_fail;
330d0414
FB		 4945 if (*p != ',')
4946 goto chs_fail;
4947 p++;
4948 heads = strtol(p, (char **)&p, 0);
46d4767d
FB		 4949 if (heads < 1 || heads > 16)
4950 goto chs_fail;
330d0414
FB		 4951 if (*p != ',')
4952 goto chs_fail;
4953 p++;
4954 secs = strtol(p, (char **)&p, 0);
46d4767d
FB		 4955 if (secs < 1 || secs > 63)
4956 goto chs_fail;
4957 if (*p == ',') {
4958 p++;
4959 if (!strcmp(p, "none"))
4960 translation = BIOS_ATA_TRANSLATION_NONE;
4961 else if (!strcmp(p, "lba"))
4962 translation = BIOS_ATA_TRANSLATION_LBA;
4963 else if (!strcmp(p, "auto"))
4964 translation = BIOS_ATA_TRANSLATION_AUTO;
4965 else
4966 goto chs_fail;
4967 } else if (*p != '\0') {
c4b1fcc0 4968 chs_fail:
46d4767d
FB		 4969 fprintf(stderr, "qemu: invalid physical CHS format\n");
4970 exit(1);
c4b1fcc0 4971 }
9dfd7c7a
GH		 4972 if (hda_opts != NULL) {
4973 char num[16];
4974 snprintf(num, sizeof(num), "%d", cyls);
4975 qemu_opt_set(hda_opts, "cyls", num);
4976 snprintf(num, sizeof(num), "%d", heads);
4977 qemu_opt_set(hda_opts, "heads", num);
4978 snprintf(num, sizeof(num), "%d", secs);
4979 qemu_opt_set(hda_opts, "secs", num);
4980 if (translation == BIOS_ATA_TRANSLATION_LBA)
4981 qemu_opt_set(hda_opts, "trans", "lba");
4982 if (translation == BIOS_ATA_TRANSLATION_NONE)
4983 qemu_opt_set(hda_opts, "trans", "none");
4984 }
330d0414
FB		 4985 }
4986 break;
268a362c
AL		 4987 case QEMU_OPTION_numa:
4988 if (nb_numa_nodes >= MAX_NODES) {
4989 fprintf(stderr, "qemu: too many NUMA nodes\n");
4990 exit(1);
4991 }
4992 numa_add(optarg);
4993 break;
cd6f1169 4994 case QEMU_OPTION_nographic:
993fbfdb 4995 display_type = DT_NOGRAPHIC;
a20dd508 4996 break;
4d3b6f6e
AZ		 4997#ifdef CONFIG_CURSES
4998 case QEMU_OPTION_curses:
993fbfdb 4999 display_type = DT_CURSES;
4d3b6f6e
AZ		 5000 break;
5001#endif
a171fe39
AZ		 5002 case QEMU_OPTION_portrait:
5003 graphic_rotate = 1;
5004 break;
cd6f1169 5005 case QEMU_OPTION_kernel:
a20dd508
FB		 5006 kernel_filename = optarg;
5007 break;
cd6f1169 5008 case QEMU_OPTION_append:
a20dd508 5009 kernel_cmdline = optarg;
313aa567 5010 break;
cd6f1169 5011 case QEMU_OPTION_cdrom:
609497ab 5012 drive_add(optarg, CDROM_ALIAS);
36b486bb 5013 break;
cd6f1169 5014 case QEMU_OPTION_boot:
28c5af54 5015 {
ef3adf68 5016 static const char * const params[] = {
95387491 5017 "order", "once", "menu", NULL
ef3adf68
JK		 5018 };
5019 char buf[sizeof(boot_devices)];
e0f084bf 5020 char *standard_boot_devices;
ef3adf68
JK		 5021 int legacy = 0;
5022
5023 if (!strchr(optarg, '=')) {
5024 legacy = 1;
5025 pstrcpy(buf, sizeof(buf), optarg);
5026 } else if (check_params(buf, sizeof(buf), params, optarg) < 0) {
5027 fprintf(stderr,
5028 "qemu: unknown boot parameter '%s' in '%s'\n",
5029 buf, optarg);
5030 exit(1);
5031 }
5032
5033 if (legacy ||
5034 get_param_value(buf, sizeof(buf), "order", optarg)) {
5035 boot_devices_bitmap = parse_bootdevices(buf);
5036 pstrcpy(boot_devices, sizeof(boot_devices), buf);
28c5af54 5037 }
e0f084bf
JK		 5038 if (!legacy) {
5039 if (get_param_value(buf, sizeof(buf),
5040 "once", optarg)) {
5041 boot_devices_bitmap |= parse_bootdevices(buf);
5042 standard_boot_devices = qemu_strdup(boot_devices);
5043 pstrcpy(boot_devices, sizeof(boot_devices), buf);
5044 qemu_register_reset(restore_boot_devices,
5045 standard_boot_devices);
5046 }
95387491
JK		 5047 if (get_param_value(buf, sizeof(buf),
5048 "menu", optarg)) {
5049 if (!strcmp(buf, "on")) {
5050 boot_menu = 1;
5051 } else if (!strcmp(buf, "off")) {
5052 boot_menu = 0;
5053 } else {
5054 fprintf(stderr,
5055 "qemu: invalid option value '%s'\n",
5056 buf);
5057 exit(1);
5058 }
5059 }
e0f084bf 5060 }
36b486bb
FB		 5061 }
5062 break;
cd6f1169 5063 case QEMU_OPTION_fda:
cd6f1169 5064 case QEMU_OPTION_fdb:
609497ab 5065 drive_add(optarg, FD_ALIAS, popt->index - QEMU_OPTION_fda);
c45886db 5066 break;
52ca8d6a
FB		 5067#ifdef TARGET_I386
5068 case QEMU_OPTION_no_fd_bootchk:
5069 fd_bootchk = 0;
5070 break;
5071#endif
a1ea458f
MM		 5072 case QEMU_OPTION_netdev:
5073 if (net_client_parse(&qemu_netdev_opts, optarg) == -1) {
5074 exit(1);
5075 }
5076 break;
7c9d8e07 5077 case QEMU_OPTION_net:
7f161aae 5078 if (net_client_parse(&qemu_net_opts, optarg) == -1) {
c4b1fcc0
FB		 5079 exit(1);
5080 }
702c651c 5081 break;
c7f74643
FB		 5082#ifdef CONFIG_SLIRP
5083 case QEMU_OPTION_tftp:
ad196a9d 5084 legacy_tftp_prefix = optarg;
9bf05444 5085 break;
47d5d01a 5086 case QEMU_OPTION_bootp:
ad196a9d 5087 legacy_bootp_filename = optarg;
47d5d01a 5088 break;
c94c8d64 5089#ifndef _WIN32
9d728e8c 5090 case QEMU_OPTION_smb:
0752706d
MA		 5091 if (net_slirp_smb(optarg) < 0)
5092 exit(1);
9d728e8c 5093 break;
c94c8d64 5094#endif
9bf05444 5095 case QEMU_OPTION_redir:
0752706d
MA		 5096 if (net_slirp_redir(optarg) < 0)
5097 exit(1);
9bf05444 5098 break;
c7f74643 5099#endif
dc72ac14 5100 case QEMU_OPTION_bt:
bd3c948d 5101 add_device_config(DEV_BT, optarg);
dc72ac14 5102 break;
1d14ffa9 5103#ifdef HAS_AUDIO
1d14ffa9
FB		 5104 case QEMU_OPTION_audio_help:
5105 AUD_help ();
5106 exit (0);
5107 break;
5108 case QEMU_OPTION_soundhw:
5109 select_soundhw (optarg);
5110 break;
5111#endif
cd6f1169 5112 case QEMU_OPTION_h:
15f82208 5113 help(0);
cd6f1169 5114 break;
9bd7e6d9
PB		 5115 case QEMU_OPTION_version:
5116 version();
5117 exit(0);
5118 break;
00f82b8a
AJ		 5119 case QEMU_OPTION_m: {
5120 uint64_t value;
5121 char *ptr;
5122
5123 value = strtoul(optarg, &ptr, 10);
5124 switch (*ptr) {
5125 case 0: case 'M': case 'm':
5126 value <<= 20;
5127 break;
5128 case 'G': case 'g':
5129 value <<= 30;
5130 break;
5131 default:
5132 fprintf(stderr, "qemu: invalid ram size: %s\n", optarg);
cd6f1169
FB		 5133 exit(1);
5134 }
00f82b8a
AJ		 5135
5136 /* On 32-bit hosts, QEMU is limited by virtual address space */
4a1418e0 5137 if (value > (2047 << 20) && HOST_LONG_BITS == 32) {
00f82b8a
AJ		 5138 fprintf(stderr, "qemu: at most 2047 MB RAM can be simulated\n");
5139 exit(1);
5140 }
c227f099 5141 if (value != (uint64_t)(ram_addr_t)value) {
00f82b8a
AJ		 5142 fprintf(stderr, "qemu: ram size too large\n");
5143 exit(1);
5144 }
5145 ram_size = value;
cd6f1169 5146 break;
00f82b8a 5147 }
cd6f1169
FB		 5148 case QEMU_OPTION_d:
5149 {
5150 int mask;
c7cd6a37 5151 const CPULogItem *item;
3b46e624 5152
cd6f1169
FB		 5153 mask = cpu_str_to_log_mask(optarg);
5154 if (!mask) {
5155 printf("Log items (comma separated):\n");
f193c797
FB		 5156 for(item = cpu_log_items; item->mask != 0; item++) {
5157 printf("%-10s %s\n", item->name, item->help);
5158 }
5159 exit(1);
cd6f1169
FB		 5160 }
5161 cpu_set_log(mask);
f193c797 5162 }
cd6f1169 5163 break;
cd6f1169 5164 case QEMU_OPTION_s:
59030a8c 5165 gdbstub_dev = "tcp::" DEFAULT_GDBSTUB_PORT;
cd6f1169 5166 break;
59030a8c
AL		 5167 case QEMU_OPTION_gdb:
5168 gdbstub_dev = optarg;
cd6f1169 5169 break;
cd6f1169 5170 case QEMU_OPTION_L:
5cea8590 5171 data_dir = optarg;
cd6f1169 5172 break;
1192dad8
JM		 5173 case QEMU_OPTION_bios:
5174 bios_name = optarg;
5175 break;
1b530a6d
AJ		 5176 case QEMU_OPTION_singlestep:
5177 singlestep = 1;
5178 break;
cd6f1169 5179 case QEMU_OPTION_S:
3c07f8e8 5180 autostart = 0;
cd6f1169 5181 break;
3d11d0eb
FB		 5182 case QEMU_OPTION_k:
5183 keyboard_layout = optarg;
5184 break;
ee22c2f7
FB		 5185 case QEMU_OPTION_localtime:
5186 rtc_utc = 0;
5187 break;
3893c124 5188 case QEMU_OPTION_vga:
5189 select_vgahw (optarg);
1bfe856e 5190 break;
5824d651 5191#if defined(TARGET_PPC) || defined(TARGET_SPARC)
e9b137c2
FB		 5192 case QEMU_OPTION_g:
5193 {
5194 const char *p;
5195 int w, h, depth;
5196 p = optarg;
5197 w = strtol(p, (char **)&p, 10);
5198 if (w <= 0) {
5199 graphic_error:
5200 fprintf(stderr, "qemu: invalid resolution or depth\n");
5201 exit(1);
5202 }
5203 if (*p != 'x')
5204 goto graphic_error;
5205 p++;
5206 h = strtol(p, (char **)&p, 10);
5207 if (h <= 0)
5208 goto graphic_error;
5209 if (*p == 'x') {
5210 p++;
5211 depth = strtol(p, (char **)&p, 10);
5fafdf24 5212 if (depth != 8 && depth != 15 && depth != 16 &&
e9b137c2
FB		 5213 depth != 24 && depth != 32)
5214 goto graphic_error;
5215 } else if (*p == '\0') {
5216 depth = graphic_depth;
5217 } else {
5218 goto graphic_error;
5219 }
3b46e624 5220
e9b137c2
FB		 5221 graphic_width = w;
5222 graphic_height = h;
5223 graphic_depth = depth;
5224 }
5225 break;
5824d651 5226#endif
20d8a3ed
TS		 5227 case QEMU_OPTION_echr:
5228 {
5229 char *r;
5230 term_escape_char = strtol(optarg, &r, 0);
5231 if (r == optarg)
5232 printf("Bad argument to echr\n");
5233 break;
5234 }
82c643ff 5235 case QEMU_OPTION_monitor:
6ca5582d
GH		 5236 monitor_parse(optarg, "readline");
5237 default_monitor = 0;
5238 break;
5239 case QEMU_OPTION_qmp:
5240 monitor_parse(optarg, "control");
abdeed06 5241 default_monitor = 0;
82c643ff 5242 break;
22a0e04b
GH		 5243 case QEMU_OPTION_mon:
5244 opts = qemu_opts_parse(&qemu_mon_opts, optarg, "chardev");
5245 if (!opts) {
5246 fprintf(stderr, "parse error: %s\n", optarg);
5247 exit(1);
5248 }
5249 default_monitor = 0;
5250 break;
191bc01b
GH		 5251 case QEMU_OPTION_chardev:
5252 opts = qemu_opts_parse(&qemu_chardev_opts, optarg, "backend");
5253 if (!opts) {
5254 fprintf(stderr, "parse error: %s\n", optarg);
5255 exit(1);
5256 }
191bc01b 5257 break;
82c643ff 5258 case QEMU_OPTION_serial:
998bbd74
GH		 5259 add_device_config(DEV_SERIAL, optarg);
5260 default_serial = 0;
82c643ff 5261 break;
9dd986cc 5262 case QEMU_OPTION_watchdog:
09aaa160
MA		 5263 if (watchdog) {
5264 fprintf(stderr,
5265 "qemu: only one watchdog option may be given\n");
5266 return 1;
5267 }
5268 watchdog = optarg;
9dd986cc
RJ		 5269 break;
5270 case QEMU_OPTION_watchdog_action:
5271 if (select_watchdog_action(optarg) == -1) {
5272 fprintf(stderr, "Unknown -watchdog-action parameter\n");
5273 exit(1);
5274 }
5275 break;
51ecf136 5276 case QEMU_OPTION_virtiocon:
aee1b935
GH		 5277 add_device_config(DEV_VIRTCON, optarg);
5278 default_virtcon = 0;
51ecf136 5279 break;
6508fe59 5280 case QEMU_OPTION_parallel:
6a5e8b0e
GH		 5281 add_device_config(DEV_PARALLEL, optarg);
5282 default_parallel = 0;
6508fe59 5283 break;
c9f398e5
PA		 5284 case QEMU_OPTION_debugcon:
5285 add_device_config(DEV_DEBUGCON, optarg);
5286 break;
d63d307f
FB		 5287 case QEMU_OPTION_loadvm:
5288 loadvm = optarg;
5289 break;
5290 case QEMU_OPTION_full_screen:
5291 full_screen = 1;
5292 break;
667accab 5293#ifdef CONFIG_SDL
43523e93
TS		 5294 case QEMU_OPTION_no_frame:
5295 no_frame = 1;
5296 break;
3780e197
TS		 5297 case QEMU_OPTION_alt_grab:
5298 alt_grab = 1;
5299 break;
0ca9f8a4
DK		 5300 case QEMU_OPTION_ctrl_grab:
5301 ctrl_grab = 1;
5302 break;
667accab
TS		 5303 case QEMU_OPTION_no_quit:
5304 no_quit = 1;
5305 break;
7d957bd8 5306 case QEMU_OPTION_sdl:
993fbfdb 5307 display_type = DT_SDL;
7d957bd8 5308 break;
667accab 5309#endif
f7cce898 5310 case QEMU_OPTION_pidfile:
93815bc2 5311 pid_file = optarg;
f7cce898 5312 break;
a09db21f
FB		 5313#ifdef TARGET_I386
5314 case QEMU_OPTION_win2k_hack:
5315 win2k_install_hack = 1;
5316 break;
73822ec8
AL		 5317 case QEMU_OPTION_rtc_td_hack:
5318 rtc_td_hack = 1;
5319 break;
8a92ea2f
AL		 5320 case QEMU_OPTION_acpitable:
5321 if(acpi_table_add(optarg) < 0) {
5322 fprintf(stderr, "Wrong acpi table provided\n");
5323 exit(1);
5324 }
5325 break;
b6f6e3d3
AL		 5326 case QEMU_OPTION_smbios:
5327 if(smbios_entry_add(optarg) < 0) {
5328 fprintf(stderr, "Wrong smbios provided\n");
5329 exit(1);
5330 }
5331 break;
a09db21f 5332#endif
7ba1e619
AL		 5333#ifdef CONFIG_KVM
5334 case QEMU_OPTION_enable_kvm:
5335 kvm_allowed = 1;
7ba1e619 5336 break;
d993e026 5337#endif
bb36d470
FB		 5338 case QEMU_OPTION_usb:
5339 usb_enabled = 1;
5340 break;
a594cfbf
FB		 5341 case QEMU_OPTION_usbdevice:
5342 usb_enabled = 1;
bd3c948d
GH		 5343 add_device_config(DEV_USB, optarg);
5344 break;
5345 case QEMU_OPTION_device:
b386becf 5346 if (!qemu_opts_parse(&qemu_device_opts, optarg, "driver")) {
f31d07d1
GH		 5347 exit(1);
5348 }
a594cfbf 5349 break;
6a00d601 5350 case QEMU_OPTION_smp:
dc6b1c09 5351 smp_parse(optarg);
b2097003 5352 if (smp_cpus < 1) {
6a00d601
FB		 5353 fprintf(stderr, "Invalid number of CPUs\n");
5354 exit(1);
5355 }
6be68d7e
JS		 5356 if (max_cpus < smp_cpus) {
5357 fprintf(stderr, "maxcpus must be equal to or greater than "
5358 "smp\n");
5359 exit(1);
5360 }
5361 if (max_cpus > 255) {
5362 fprintf(stderr, "Unsupported number of maxcpus\n");
5363 exit(1);
5364 }
6a00d601 5365 break;
24236869 5366 case QEMU_OPTION_vnc:
993fbfdb 5367 display_type = DT_VNC;
73fc9742 5368 vnc_display = optarg;
24236869 5369 break;
5824d651 5370#ifdef TARGET_I386
6515b203
FB		 5371 case QEMU_OPTION_no_acpi:
5372 acpi_enabled = 0;
5373 break;
16b29ae1
AL		 5374 case QEMU_OPTION_no_hpet:
5375 no_hpet = 1;
5376 break;
7d4c3d53
MA		 5377 case QEMU_OPTION_balloon:
5378 if (balloon_parse(optarg) < 0) {
5379 fprintf(stderr, "Unknown -balloon argument %s\n", optarg);
5380 exit(1);
5381 }
df97b920 5382 break;
5824d651 5383#endif
d1beab82
FB		 5384 case QEMU_OPTION_no_reboot:
5385 no_reboot = 1;
5386 break;
b2f76161
AJ		 5387 case QEMU_OPTION_no_shutdown:
5388 no_shutdown = 1;
5389 break;
9467cd46
AZ		 5390 case QEMU_OPTION_show_cursor:
5391 cursor_hide = 0;
5392 break;
8fcb1b90
BS		 5393 case QEMU_OPTION_uuid:
5394 if(qemu_uuid_parse(optarg, qemu_uuid) < 0) {
5395 fprintf(stderr, "Fail to parse UUID string."
5396 " Wrong format.\n");
5397 exit(1);
5398 }
5399 break;
5824d651 5400#ifndef _WIN32
71e3ceb8
TS		 5401 case QEMU_OPTION_daemonize:
5402 daemonize = 1;
5403 break;
5824d651 5404#endif
9ae02555
TS		 5405 case QEMU_OPTION_option_rom:
5406 if (nb_option_roms >= MAX_OPTION_ROMS) {
5407 fprintf(stderr, "Too many option ROMs\n");
5408 exit(1);
5409 }
5410 option_rom[nb_option_roms] = optarg;
5411 nb_option_roms++;
5412 break;
5824d651 5413#if defined(TARGET_ARM) || defined(TARGET_M68K)
8e71621f
PB		 5414 case QEMU_OPTION_semihosting:
5415 semihosting_enabled = 1;
5416 break;
5824d651 5417#endif
c35734b2 5418 case QEMU_OPTION_name:
1889465a
AK		 5419 qemu_name = qemu_strdup(optarg);
5420 {
5421 char *p = strchr(qemu_name, ',');
5422 if (p != NULL) {
5423 *p++ = 0;
5424 if (strncmp(p, "process=", 8)) {
5425 fprintf(stderr, "Unknown subargument %s to -name", p);
5426 exit(1);
5427 }
5428 p += 8;
5429 set_proc_name(p);
5430 }
5431 }
c35734b2 5432 break;
95efd11c 5433#if defined(TARGET_SPARC) || defined(TARGET_PPC)
66508601
BS		 5434 case QEMU_OPTION_prom_env:
5435 if (nb_prom_envs >= MAX_PROM_ENVS) {
5436 fprintf(stderr, "Too many prom variables\n");
5437 exit(1);
5438 }
5439 prom_envs[nb_prom_envs] = optarg;
5440 nb_prom_envs++;
5441 break;
2b8f2d41
AZ		 5442#endif
5443#ifdef TARGET_ARM
5444 case QEMU_OPTION_old_param:
5445 old_param = 1;
05ebd537 5446 break;
66508601 5447#endif
f3dcfada
TS		 5448 case QEMU_OPTION_clock:
5449 configure_alarms(optarg);
5450 break;
7e0af5d0 5451 case QEMU_OPTION_startdate:
1ed2fc1f
JK		 5452 configure_rtc_date_offset(optarg, 1);
5453 break;
5454 case QEMU_OPTION_rtc:
5455 opts = qemu_opts_parse(&qemu_rtc_opts, optarg, NULL);
5456 if (!opts) {
5457 fprintf(stderr, "parse error: %s\n", optarg);
5458 exit(1);
7e0af5d0 5459 }
1ed2fc1f 5460 configure_rtc(opts);
7e0af5d0 5461 break;
26a5f13b
FB		 5462 case QEMU_OPTION_tb_size:
5463 tb_size = strtol(optarg, NULL, 0);
5464 if (tb_size < 0)
5465 tb_size = 0;
5466 break;
2e70f6ef
PB		 5467 case QEMU_OPTION_icount:
5468 use_icount = 1;
5469 if (strcmp(optarg, "auto") == 0) {
5470 icount_time_shift = -1;
5471 } else {
5472 icount_time_shift = strtol(optarg, NULL, 0);
5473 }
5474 break;
5bb7910a
AL		 5475 case QEMU_OPTION_incoming:
5476 incoming = optarg;
5477 break;
d8c208dd
GH		 5478 case QEMU_OPTION_nodefaults:
5479 default_serial = 0;
5480 default_parallel = 0;
aee1b935 5481 default_virtcon = 0;
d8c208dd
GH		 5482 default_monitor = 0;
5483 default_vga = 0;
cb4522cc 5484 default_net = 0;
ac33f8fa
GH		 5485 default_floppy = 0;
5486 default_cdrom = 0;
5487 default_sdcard = 0;
d8c208dd 5488 break;
5824d651 5489#ifndef _WIN32
0858532e
AL		 5490 case QEMU_OPTION_chroot:
5491 chroot_dir = optarg;
5492 break;
5493 case QEMU_OPTION_runas:
5494 run_as = optarg;
5495 break;
e37630ca
AL		 5496#endif
5497#ifdef CONFIG_XEN
5498 case QEMU_OPTION_xen_domid:
5499 xen_domid = atoi(optarg);
5500 break;
5501 case QEMU_OPTION_xen_create:
5502 xen_mode = XEN_CREATE;
5503 break;
5504 case QEMU_OPTION_xen_attach:
5505 xen_mode = XEN_ATTACH;
5506 break;
5824d651 5507#endif
715a664a
GH		 5508 case QEMU_OPTION_readconfig:
5509 {
5510 FILE *fp;
5511 fp = fopen(optarg, "r");
5512 if (fp == NULL) {
5513 fprintf(stderr, "open %s: %s\n", optarg, strerror(errno));
5514 exit(1);
5515 }
5516 if (qemu_config_parse(fp) != 0) {
5517 exit(1);
5518 }
5519 fclose(fp);
5520 break;
5521 }
5522 case QEMU_OPTION_writeconfig:
5523 {
5524 FILE *fp;
5525 if (strcmp(optarg, "-") == 0) {
5526 fp = stdout;
5527 } else {
5528 fp = fopen(optarg, "w");
5529 if (fp == NULL) {
5530 fprintf(stderr, "open %s: %s\n", optarg, strerror(errno));
5531 exit(1);
5532 }
5533 }
5534 qemu_config_write(fp);
5535 fclose(fp);
5536 break;
5537 }
cd6f1169 5538 }
0824d6fc
FB		 5539 }
5540 }
330d0414 5541
5cea8590
PB		 5542 /* If no data_dir is specified then try to find it relative to the
5543 executable path. */
5544 if (!data_dir) {
5545 data_dir = find_datadir(argv[0]);
5546 }
5547 /* If all else fails use the install patch specified when building. */
5548 if (!data_dir) {
5549 data_dir = CONFIG_QEMU_SHAREDIR;
5550 }
5551
6be68d7e
JS		 5552 /*
5553 * Default to max_cpus = smp_cpus, in case the user doesn't
5554 * specify a max_cpus value.
5555 */
5556 if (!max_cpus)
5557 max_cpus = smp_cpus;
5558
3d878caa 5559 machine->max_cpus = machine->max_cpus ?: 1; /* Default to UP */
b2097003
AL		 5560 if (smp_cpus > machine->max_cpus) {
5561 fprintf(stderr, "Number of SMP cpus requested (%d), exceeds max cpus "
5562 "supported by machine `%s' (%d)\n", smp_cpus, machine->name,
5563 machine->max_cpus);
5564 exit(1);
5565 }
5566
998bbd74 5567 qemu_opts_foreach(&qemu_device_opts, default_driver_check, NULL, 0);
d8bcbabf 5568 qemu_opts_foreach(&qemu_global_opts, default_driver_check, NULL, 0);
998bbd74 5569
986c5f78
GH		 5570 if (machine->no_serial) {
5571 default_serial = 0;
5572 }
5573 if (machine->no_parallel) {
5574 default_parallel = 0;
5575 }
5576 if (!machine->use_virtcon) {
5577 default_virtcon = 0;
5578 }
5579 if (machine->no_vga) {
5580 default_vga = 0;
5581 }
ac33f8fa
GH		 5582 if (machine->no_floppy) {
5583 default_floppy = 0;
5584 }
5585 if (machine->no_cdrom) {
5586 default_cdrom = 0;
5587 }
5588 if (machine->no_sdcard) {
5589 default_sdcard = 0;
5590 }
986c5f78 5591
993fbfdb 5592 if (display_type == DT_NOGRAPHIC) {
6a5e8b0e
GH		 5593 if (default_parallel)
5594 add_device_config(DEV_PARALLEL, "null");
e1c09175
GH		 5595 if (default_serial && default_monitor) {
5596 add_device_config(DEV_SERIAL, "mon:stdio");
986c5f78
GH		 5597 } else if (default_virtcon && default_monitor) {
5598 add_device_config(DEV_VIRTCON, "mon:stdio");
e1c09175
GH		 5599 } else {
5600 if (default_serial)
5601 add_device_config(DEV_SERIAL, "stdio");
986c5f78
GH		 5602 if (default_virtcon)
5603 add_device_config(DEV_VIRTCON, "stdio");
e1c09175 5604 if (default_monitor)
6ca5582d 5605 monitor_parse("stdio", "readline");
e1c09175 5606 }
998bbd74
GH		 5607 } else {
5608 if (default_serial)
5609 add_device_config(DEV_SERIAL, "vc:80Cx24C");
6a5e8b0e
GH		 5610 if (default_parallel)
5611 add_device_config(DEV_PARALLEL, "vc:80Cx24C");
abdeed06 5612 if (default_monitor)
6ca5582d 5613 monitor_parse("vc:80Cx24C", "readline");
38536da1
AG		 5614 if (default_virtcon)
5615 add_device_config(DEV_VIRTCON, "vc:80Cx24C");
bc0129d9 5616 }
64465297
GH		 5617 if (default_vga)
5618 vga_interface_type = VGA_CIRRUS;
bc0129d9 5619
1a688d3b
GH		 5620 if (qemu_opts_foreach(&qemu_chardev_opts, chardev_init_func, NULL, 1) != 0)
5621 exit(1);
5622
71e3ceb8 5623#ifndef _WIN32
71e3ceb8
TS		 5624 if (daemonize) {
5625 pid_t pid;
5626
5627 if (pipe(fds) == -1)
5628 exit(1);
5629
5630 pid = fork();
5631 if (pid > 0) {
5632 uint8_t status;
5633 ssize_t len;
5634
5635 close(fds[1]);
5636
5637 again:
93815bc2
TS		 5638 len = read(fds[0], &status, 1);
5639 if (len == -1 && (errno == EINTR))
5640 goto again;
5641
5642 if (len != 1)
5643 exit(1);
5644 else if (status == 1) {
850810d0 5645 fprintf(stderr, "Could not acquire pidfile: %s\n", strerror(errno));
93815bc2
TS		 5646 exit(1);
5647 } else
5648 exit(0);
71e3ceb8 5649 } else if (pid < 0)
93815bc2 5650 exit(1);
71e3ceb8 5651
40ff6d7e
KW		 5652 close(fds[0]);
5653 qemu_set_cloexec(fds[1]);
5654
71e3ceb8
TS		 5655 setsid();
5656
5657 pid = fork();
5658 if (pid > 0)
5659 exit(0);
5660 else if (pid < 0)
5661 exit(1);
5662
5663 umask(027);
71e3ceb8
TS		 5664
5665 signal(SIGTSTP, SIG_IGN);
5666 signal(SIGTTOU, SIG_IGN);
5667 signal(SIGTTIN, SIG_IGN);
5668 }
099fe236 5669#endif
71e3ceb8 5670
aa26bb2d 5671 if (pid_file && qemu_create_pidfile(pid_file) != 0) {
099fe236 5672#ifndef _WIN32
93815bc2
TS		 5673 if (daemonize) {
5674 uint8_t status = 1;
dc330e28
KS		 5675 if (write(fds[1], &status, 1) != 1) {
5676 perror("daemonize. Writing to pipe\n");
5677 }
93815bc2 5678 } else
099fe236 5679#endif
850810d0 5680 fprintf(stderr, "Could not acquire pid file: %s\n", strerror(errno));
93815bc2
TS		 5681 exit(1);
5682 }
5683
214910a7
MT		 5684 if (kvm_enabled()) {
5685 int ret;
5686
5687 ret = kvm_init(smp_cpus);
5688 if (ret < 0) {
5689 fprintf(stderr, "failed to initialize KVM\n");
5690 exit(1);
5691 }
5692 }
5693
3fcf7b6b
AL		 5694 if (qemu_init_main_loop()) {
5695 fprintf(stderr, "qemu_init_main_loop failed\n");
5696 exit(1);
5697 }
a20dd508 5698 linux_boot = (kernel_filename != NULL);
6c41b272 5699
f8d39c01
TS		 5700 if (!linux_boot && *kernel_cmdline != '\0') {
5701 fprintf(stderr, "-append only allowed with -kernel option\n");
5702 exit(1);
5703 }
5704
5705 if (!linux_boot && initrd_filename != NULL) {
5706 fprintf(stderr, "-initrd only allowed with -kernel option\n");
5707 exit(1);
5708 }
5709
bf65f53f
FN		 5710#ifndef _WIN32
5711 /* Win32 doesn't support line-buffering and requires size >= 2 */
b118d61e 5712 setvbuf(stdout, NULL, _IOLBF, 0);
bf65f53f 5713#endif
3b46e624 5714
7183b4b4
AL		 5715 if (init_timer_alarm() < 0) {
5716 fprintf(stderr, "could not initialize alarm timer\n");
5717 exit(1);
5718 }
2e70f6ef
PB		 5719 if (use_icount && icount_time_shift < 0) {
5720 use_icount = 2;
5721 /* 125MIPS seems a reasonable initial guess at the guest speed.
5722 It will be corrected fairly quickly anyway. */
5723 icount_time_shift = 3;
5724 init_icount_adjust();
5725 }
634fce96 5726
fd1dff4b
FB		 5727#ifdef _WIN32
5728 socket_init();
5729#endif
5730
dc1c9fe8
MM		 5731 if (net_init_clients() < 0) {
5732 exit(1);
702c651c 5733 }
f1510b2c 5734
406c8df3
GC		 5735 net_boot = (boot_devices_bitmap >> ('n' - 'a')) & 0xF;
5736 net_set_boot_mask(net_boot);
5737
dc72ac14 5738 /* init the bluetooth world */
bd3c948d
GH		 5739 if (foreach_device_config(DEV_BT, bt_parse))
5740 exit(1);
dc72ac14 5741
0824d6fc 5742 /* init the memory */
94a6b54f
PB		 5743 if (ram_size == 0)
5744 ram_size = DEFAULT_RAM_SIZE * 1024 * 1024;
9ae02555 5745
26a5f13b
FB		 5746 /* init the dynamic translator */
5747 cpu_exec_init_all(tb_size * 1024 * 1024);
5748
eb852011 5749 bdrv_init_with_whitelist();
c4b1fcc0 5750
c163b5ca
LS		 5751 blk_mig_init();
5752
ac33f8fa 5753 if (default_cdrom) {
aa40fc9c
GH		 5754 /* we always create the cdrom drive, even if no disk is there */
5755 drive_add(NULL, CDROM_ALIAS);
ac33f8fa 5756 }
c4b1fcc0 5757
ac33f8fa 5758 if (default_floppy) {
aa40fc9c
GH		 5759 /* we always create at least one floppy */
5760 drive_add(NULL, FD_ALIAS, 0);
ac33f8fa 5761 }
86f55663 5762
ac33f8fa 5763 if (default_sdcard) {
aa40fc9c
GH		 5764 /* we always create one sd slot, even if no card is in it */
5765 drive_add(NULL, SD_ALIAS);
5766 }
9d413d1d 5767
e4bcb14c 5768 /* open the virtual block devices */
9dfd7c7a 5769 if (snapshot)
7282a033
GH		 5770 qemu_opts_foreach(&qemu_drive_opts, drive_enable_snapshot, NULL, 0);
5771 if (qemu_opts_foreach(&qemu_drive_opts, drive_init_func, machine, 1) != 0)
9dfd7c7a 5772 exit(1);
3e3d5815 5773
2faf58cd 5774 vmstate_register(0, &vmstate_timers ,&timers_state);
c163b5ca
LS		 5775 register_savevm_live("ram", 0, 3, NULL, ram_save_live, NULL,
5776 ram_load, NULL);
8a7ddc38 5777
268a362c
AL		 5778 if (nb_numa_nodes > 0) {
5779 int i;
5780
5781 if (nb_numa_nodes > smp_cpus) {
5782 nb_numa_nodes = smp_cpus;
5783 }
5784
5785 /* If no memory size if given for any node, assume the default case
5786 * and distribute the available memory equally across all nodes
5787 */
5788 for (i = 0; i < nb_numa_nodes; i++) {
5789 if (node_mem[i] != 0)
5790 break;
5791 }
5792 if (i == nb_numa_nodes) {
5793 uint64_t usedmem = 0;
5794
5795 /* On Linux, the each node's border has to be 8MB aligned,
5796 * the final node gets the rest.
5797 */
5798 for (i = 0; i < nb_numa_nodes - 1; i++) {
5799 node_mem[i] = (ram_size / nb_numa_nodes) & ~((1 << 23UL) - 1);
5800 usedmem += node_mem[i];
5801 }
5802 node_mem[i] = ram_size - usedmem;
5803 }
5804
5805 for (i = 0; i < nb_numa_nodes; i++) {
5806 if (node_cpumask[i] != 0)
5807 break;
5808 }
5809 /* assigning the VCPUs round-robin is easier to implement, guest OSes
5810 * must cope with this anyway, because there are BIOSes out there in
5811 * real machines which also use this scheme.
5812 */
5813 if (i == nb_numa_nodes) {
5814 for (i = 0; i < smp_cpus; i++) {
5815 node_cpumask[i % nb_numa_nodes] |= 1 << i;
5816 }
5817 }
5818 }
5819
998bbd74
GH		 5820 if (foreach_device_config(DEV_SERIAL, serial_parse) < 0)
5821 exit(1);
6a5e8b0e
GH		 5822 if (foreach_device_config(DEV_PARALLEL, parallel_parse) < 0)
5823 exit(1);
aee1b935
GH		 5824 if (foreach_device_config(DEV_VIRTCON, virtcon_parse) < 0)
5825 exit(1);
c9f398e5
PA		 5826 if (foreach_device_config(DEV_DEBUGCON, debugcon_parse) < 0)
5827 exit(1);
2796dae0 5828
aae9460e
PB		 5829 module_call_init(MODULE_INIT_DEVICE);
5830
09aaa160
MA		 5831 if (watchdog) {
5832 i = select_watchdog(watchdog);
5833 if (i > 0)
5834 exit (i == 1 ? 1 : 0);
5835 }
5836
b6b61144 5837 if (machine->compat_props) {
458fb679 5838 qdev_prop_register_global_list(machine->compat_props);
b6b61144 5839 }
d0fef6fb
GH		 5840 qemu_add_globals();
5841
fbe1b595 5842 machine->init(ram_size, boot_devices,
3023f332
AL		 5843 kernel_filename, kernel_cmdline, initrd_filename, cpu_model);
5844
268a362c 5845
67b3b71d
JQ		 5846#ifndef _WIN32
5847 /* must be after terminal init, SDL library changes signal handlers */
5848 sighandler_setup();
5849#endif
5850
268a362c
AL		 5851 for (env = first_cpu; env != NULL; env = env->next_cpu) {
5852 for (i = 0; i < nb_numa_nodes; i++) {
5853 if (node_cpumask[i] & (1 << env->cpu_index)) {
5854 env->numa_node = i;
5855 }
5856 }
5857 }
5858
6f338c34
AL		 5859 current_machine = machine;
5860
3023f332
AL		 5861 /* init USB devices */
5862 if (usb_enabled) {
0752706d
MA		 5863 if (foreach_device_config(DEV_USB, usb_parse) < 0)
5864 exit(1);
3023f332
AL		 5865 }
5866
bd3c948d 5867 /* init generic devices */
f31d07d1 5868 if (qemu_opts_foreach(&qemu_device_opts, device_init_func, NULL, 1) != 0)
bd3c948d
GH		 5869 exit(1);
5870
8f391ab4
AL		 5871 if (!display_state)
5872 dumb_display_init();
3023f332
AL		 5873 /* just use the first displaystate for the moment */
5874 ds = display_state;
993fbfdb
AL		 5875
5876 if (display_type == DT_DEFAULT) {
5877#if defined(CONFIG_SDL) || defined(CONFIG_COCOA)
5878 display_type = DT_SDL;
5879#else
5880 display_type = DT_VNC;
5881 vnc_display = "localhost:0,to=99";
5882 show_vnc_port = 1;
5883#endif
5884 }
5885
5886
5887 switch (display_type) {
5888 case DT_NOGRAPHIC:
5889 break;
4d3b6f6e 5890#if defined(CONFIG_CURSES)
993fbfdb
AL		 5891 case DT_CURSES:
5892 curses_display_init(ds, full_screen);
5893 break;
4d3b6f6e 5894#endif
5b0753e0 5895#if defined(CONFIG_SDL)
993fbfdb
AL		 5896 case DT_SDL:
5897 sdl_display_init(ds, full_screen, no_frame);
5898 break;
5b0753e0 5899#elif defined(CONFIG_COCOA)
993fbfdb
AL		 5900 case DT_SDL:
5901 cocoa_display_init(ds, full_screen);
5902 break;
313aa567 5903#endif
993fbfdb
AL		 5904 case DT_VNC:
5905 vnc_display_init(ds);
5906 if (vnc_display_open(ds, vnc_display) < 0)
5907 exit(1);
f92f8afe 5908
993fbfdb
AL		 5909 if (show_vnc_port) {
5910 printf("VNC server running on `%s'\n", vnc_display_local_addr(ds));
f92f8afe 5911 }
993fbfdb
AL		 5912 break;
5913 default:
5914 break;
313aa567 5915 }
7d957bd8 5916 dpy_resize(ds);
5b08fc10 5917
3023f332
AL		 5918 dcl = ds->listeners;
5919 while (dcl != NULL) {
5920 if (dcl->dpy_refresh != NULL) {
5921 ds->gui_timer = qemu_new_timer(rt_clock, gui_update, ds);
5922 qemu_mod_timer(ds->gui_timer, qemu_get_clock(rt_clock));
20d8a3ed 5923 }
3023f332 5924 dcl = dcl->next;
20d8a3ed 5925 }
3023f332 5926
993fbfdb 5927 if (display_type == DT_NOGRAPHIC || display_type == DT_VNC) {
9043b62d
BS		 5928 nographic_timer = qemu_new_timer(rt_clock, nographic_update, NULL);
5929 qemu_mod_timer(nographic_timer, qemu_get_clock(rt_clock));
5930 }
5931
2796dae0
AL		 5932 text_consoles_set_display(display_state);
5933
88589343
GH		 5934 if (qemu_opts_foreach(&qemu_mon_opts, mon_init_func, NULL, 1) != 0)
5935 exit(1);
82c643ff 5936
59030a8c
AL		 5937 if (gdbstub_dev && gdbserver_start(gdbstub_dev) < 0) {
5938 fprintf(stderr, "qemu: could not open gdbserver on device '%s'\n",
5939 gdbstub_dev);
5940 exit(1);
45669e00 5941 }
45669e00 5942
3418bd25
GH		 5943 qdev_machine_creation_done();
5944
15ff7705
GH		 5945 if (rom_load_all() != 0) {
5946 fprintf(stderr, "rom loading failed\n");
5947 exit(1);
5948 }
45a50b16 5949
504c2948 5950 qemu_system_reset();
05f2401e
JQ		 5951 if (loadvm) {
5952 if (load_vmstate(cur_mon, loadvm) < 0) {
5953 autostart = 0;
5954 }
5955 }
d63d307f 5956
2bb8c10c 5957 if (incoming) {
5bb7910a 5958 qemu_start_incoming_migration(incoming);
6b99dadc 5959 } else if (autostart) {
c0f4ce77 5960 vm_start();
6b99dadc 5961 }
ffd843bc 5962
b9e82a59 5963#ifndef _WIN32
71e3ceb8
TS		 5964 if (daemonize) {
5965 uint8_t status = 0;
5966 ssize_t len;
71e3ceb8
TS		 5967
5968 again1:
5969 len = write(fds[1], &status, 1);
5970 if (len == -1 && (errno == EINTR))
5971 goto again1;
5972
5973 if (len != 1)
5974 exit(1);
5975
dc330e28
KS		 5976 if (chdir("/")) {
5977 perror("not able to chdir to /");
5978 exit(1);
5979 }
40ff6d7e 5980 TFR(fd = qemu_open("/dev/null", O_RDWR));
71e3ceb8
TS		 5981 if (fd == -1)
5982 exit(1);
0858532e 5983 }
71e3ceb8 5984
0858532e
AL		 5985 if (run_as) {
5986 pwd = getpwnam(run_as);
5987 if (!pwd) {
5988 fprintf(stderr, "User \"%s\" doesn't exist\n", run_as);
5989 exit(1);
5990 }
5991 }
5992
5993 if (chroot_dir) {
5994 if (chroot(chroot_dir) < 0) {
5995 fprintf(stderr, "chroot failed\n");
5996 exit(1);
5997 }
dc330e28
KS		 5998 if (chdir("/")) {
5999 perror("not able to chdir to /");
6000 exit(1);
6001 }
0858532e
AL		 6002 }
6003
6004 if (run_as) {
6005 if (setgid(pwd->pw_gid) < 0) {
6006 fprintf(stderr, "Failed to setgid(%d)\n", pwd->pw_gid);
6007 exit(1);
6008 }
6009 if (setuid(pwd->pw_uid) < 0) {
6010 fprintf(stderr, "Failed to setuid(%d)\n", pwd->pw_uid);
6011 exit(1);
6012 }
6013 if (setuid(0) != -1) {
6014 fprintf(stderr, "Dropping privileges failed\n");
6015 exit(1);
6016 }
6017 }
0858532e
AL		 6018
6019 if (daemonize) {
6020 dup2(fd, 0);
6021 dup2(fd, 1);
6022 dup2(fd, 2);
71e3ceb8 6023
0858532e 6024 close(fd);
71e3ceb8 6025 }
b9e82a59 6026#endif
71e3ceb8 6027
8a7ddc38 6028 main_loop();
40c3bac3 6029 quit_timers();
63a01ef8 6030 net_cleanup();
b46a8906 6031
0824d6fc
FB		 6032 return 0;
6033}
QEMU mirror